diff options
Diffstat (limited to 'net/bluetooth')
-rw-r--r-- | net/bluetooth/Makefile | 2 | ||||
-rw-r--r-- | net/bluetooth/a2mp.c | 72 | ||||
-rw-r--r-- | net/bluetooth/a2mp.h | 150 | ||||
-rw-r--r-- | net/bluetooth/af_bluetooth.c | 73 | ||||
-rw-r--r-- | net/bluetooth/amp.c | 10 | ||||
-rw-r--r-- | net/bluetooth/amp.h | 54 | ||||
-rw-r--r-- | net/bluetooth/bnep/core.c | 18 | ||||
-rw-r--r-- | net/bluetooth/cmtp/core.c | 6 | ||||
-rw-r--r-- | net/bluetooth/hci_conn.c | 194 | ||||
-rw-r--r-- | net/bluetooth/hci_core.c | 1140 | ||||
-rw-r--r-- | net/bluetooth/hci_event.c | 181 | ||||
-rw-r--r-- | net/bluetooth/hci_sock.c | 210 | ||||
-rw-r--r-- | net/bluetooth/hci_sysfs.c | 373 | ||||
-rw-r--r-- | net/bluetooth/hidp/core.c | 18 | ||||
-rw-r--r-- | net/bluetooth/hidp/hidp.h | 4 | ||||
-rw-r--r-- | net/bluetooth/l2cap_core.c | 543 | ||||
-rw-r--r-- | net/bluetooth/l2cap_sock.c | 222 | ||||
-rw-r--r-- | net/bluetooth/mgmt.c | 1609 | ||||
-rw-r--r-- | net/bluetooth/rfcomm/core.c | 33 | ||||
-rw-r--r-- | net/bluetooth/rfcomm/sock.c | 49 | ||||
-rw-r--r-- | net/bluetooth/rfcomm/tty.c | 35 | ||||
-rw-r--r-- | net/bluetooth/sco.c | 57 | ||||
-rw-r--r-- | net/bluetooth/smp.c | 98 | ||||
-rw-r--r-- | net/bluetooth/smp.h | 146 |
24 files changed, 3639 insertions, 1658 deletions
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile index dea6a287dac..6a791e73e39 100644 --- a/net/bluetooth/Makefile +++ b/net/bluetooth/Makefile @@ -11,3 +11,5 @@ obj-$(CONFIG_BT_HIDP) += hidp/ bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \ hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \ a2mp.o amp.o + +subdir-ccflags-y += -D__CHECK_ENDIAN__ diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c index 17f33a62f6d..efcd108822c 100644 --- a/net/bluetooth/a2mp.c +++ b/net/bluetooth/a2mp.c @@ -15,8 +15,9 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include <net/bluetooth/l2cap.h> -#include <net/bluetooth/a2mp.h> -#include <net/bluetooth/amp.h> + +#include "a2mp.h" +#include "amp.h" /* Global AMP Manager list */ LIST_HEAD(amp_mgr_list); @@ -75,33 +76,26 @@ u8 __next_ident(struct amp_mgr *mgr) return mgr->ident; } -static inline void __a2mp_cl_bredr(struct a2mp_cl *cl) -{ - cl->id = 0; - cl->type = 0; - cl->status = 1; -} - /* hci_dev_list shall be locked */ -static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl) +static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl) { - int i = 0; struct hci_dev *hdev; + int i = 1; - __a2mp_cl_bredr(cl); + cl[0].id = AMP_ID_BREDR; + cl[0].type = AMP_TYPE_BREDR; + cl[0].status = AMP_STATUS_BLUETOOTH_ONLY; list_for_each_entry(hdev, &hci_dev_list, list) { - /* Iterate through AMP controllers */ - if (hdev->id == HCI_BREDR_ID) - continue; - - /* Starting from second entry */ - if (++i >= num_ctrl) - return; - - cl[i].id = hdev->id; - cl[i].type = hdev->amp_type; - cl[i].status = hdev->amp_status; + if (hdev->dev_type == HCI_AMP) { + cl[i].id = hdev->id; + cl[i].type = hdev->amp_type; + if (test_bit(HCI_UP, &hdev->flags)) + cl[i].status = hdev->amp_status; + else + cl[i].status = AMP_STATUS_POWERED_DOWN; + i++; + } } } @@ -129,6 +123,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb, struct a2mp_discov_rsp *rsp; u16 ext_feat; u8 num_ctrl; + struct hci_dev *hdev; if (len < sizeof(*req)) return -EINVAL; @@ -152,7 +147,14 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb, read_lock(&hci_dev_list_lock); - num_ctrl = __hci_num_ctrl(); + /* at minimum the BR/EDR needs to be listed */ + num_ctrl = 1; + + list_for_each_entry(hdev, &hci_dev_list, list) { + if (hdev->dev_type == HCI_AMP) + num_ctrl++; + } + len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp); rsp = kmalloc(len, GFP_ATOMIC); if (!rsp) { @@ -163,7 +165,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb, rsp->mtu = __constant_cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU); rsp->ext_feat = 0; - __a2mp_add_cl(mgr, rsp->cl, num_ctrl); + __a2mp_add_cl(mgr, rsp->cl); read_unlock(&hci_dev_list_lock); @@ -208,7 +210,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb, BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type, cl->status); - if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) { + if (cl->id != AMP_ID_BREDR && cl->type != AMP_TYPE_BREDR) { struct a2mp_info_req req; found = true; @@ -344,7 +346,7 @@ static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb, tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC); hdev = hci_dev_get(req->id); - if (!hdev || hdev->amp_type == HCI_BREDR || tmp) { + if (!hdev || hdev->amp_type == AMP_TYPE_BREDR || tmp) { struct a2mp_amp_assoc_rsp rsp; rsp.id = req->id; @@ -451,7 +453,7 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb, rsp.remote_id = req->local_id; hdev = hci_dev_get(req->remote_id); - if (!hdev || hdev->amp_type != HCI_AMP) { + if (!hdev || hdev->amp_type == AMP_TYPE_BREDR) { rsp.status = A2MP_STATUS_INVALID_CTRL_ID; goto send_rsp; } @@ -535,7 +537,8 @@ static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb, goto send_rsp; } - hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, mgr->l2cap_conn->dst); + hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, + &mgr->l2cap_conn->hcon->dst); if (!hcon) { BT_ERR("No phys link exist"); rsp.status = A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS; @@ -669,7 +672,8 @@ static void a2mp_chan_close_cb(struct l2cap_chan *chan) l2cap_chan_put(chan); } -static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state) +static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state, + int err) { struct amp_mgr *mgr = chan->data; @@ -706,6 +710,9 @@ static struct l2cap_ops a2mp_chan_ops = { .teardown = l2cap_chan_no_teardown, .ready = l2cap_chan_no_ready, .defer = l2cap_chan_no_defer, + .resume = l2cap_chan_no_resume, + .set_shutdown = l2cap_chan_no_set_shutdown, + .get_sndtimeo = l2cap_chan_no_get_sndtimeo, }; static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked) @@ -829,6 +836,9 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, { struct amp_mgr *mgr; + if (conn->hcon->type != ACL_LINK) + return NULL; + mgr = amp_mgr_create(conn, false); if (!mgr) { BT_ERR("Could not create AMP manager"); @@ -871,7 +881,7 @@ void a2mp_send_getinfo_rsp(struct hci_dev *hdev) rsp.id = hdev->id; rsp.status = A2MP_STATUS_INVALID_CTRL_ID; - if (hdev->amp_type != HCI_BREDR) { + if (hdev->amp_type != AMP_TYPE_BREDR) { rsp.status = 0; rsp.total_bw = cpu_to_le32(hdev->amp_total_bw); rsp.max_bw = cpu_to_le32(hdev->amp_max_bw); diff --git a/net/bluetooth/a2mp.h b/net/bluetooth/a2mp.h new file mode 100644 index 00000000000..487b54c1308 --- /dev/null +++ b/net/bluetooth/a2mp.h @@ -0,0 +1,150 @@ +/* + Copyright (c) 2010,2011 Code Aurora Forum. All rights reserved. + Copyright (c) 2011,2012 Intel Corp. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 and + only version 2 as published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. +*/ + +#ifndef __A2MP_H +#define __A2MP_H + +#include <net/bluetooth/l2cap.h> + +#define A2MP_FEAT_EXT 0x8000 + +enum amp_mgr_state { + READ_LOC_AMP_INFO, + READ_LOC_AMP_ASSOC, + READ_LOC_AMP_ASSOC_FINAL, + WRITE_REMOTE_AMP_ASSOC, +}; + +struct amp_mgr { + struct list_head list; + struct l2cap_conn *l2cap_conn; + struct l2cap_chan *a2mp_chan; + struct l2cap_chan *bredr_chan; + struct kref kref; + __u8 ident; + __u8 handle; + unsigned long state; + unsigned long flags; + + struct list_head amp_ctrls; + struct mutex amp_ctrls_lock; +}; + +struct a2mp_cmd { + __u8 code; + __u8 ident; + __le16 len; + __u8 data[0]; +} __packed; + +/* A2MP command codes */ +#define A2MP_COMMAND_REJ 0x01 +struct a2mp_cmd_rej { + __le16 reason; + __u8 data[0]; +} __packed; + +#define A2MP_DISCOVER_REQ 0x02 +struct a2mp_discov_req { + __le16 mtu; + __le16 ext_feat; +} __packed; + +struct a2mp_cl { + __u8 id; + __u8 type; + __u8 status; +} __packed; + +#define A2MP_DISCOVER_RSP 0x03 +struct a2mp_discov_rsp { + __le16 mtu; + __le16 ext_feat; + struct a2mp_cl cl[0]; +} __packed; + +#define A2MP_CHANGE_NOTIFY 0x04 +#define A2MP_CHANGE_RSP 0x05 + +#define A2MP_GETINFO_REQ 0x06 +struct a2mp_info_req { + __u8 id; +} __packed; + +#define A2MP_GETINFO_RSP 0x07 +struct a2mp_info_rsp { + __u8 id; + __u8 status; + __le32 total_bw; + __le32 max_bw; + __le32 min_latency; + __le16 pal_cap; + __le16 assoc_size; +} __packed; + +#define A2MP_GETAMPASSOC_REQ 0x08 +struct a2mp_amp_assoc_req { + __u8 id; +} __packed; + +#define A2MP_GETAMPASSOC_RSP 0x09 +struct a2mp_amp_assoc_rsp { + __u8 id; + __u8 status; + __u8 amp_assoc[0]; +} __packed; + +#define A2MP_CREATEPHYSLINK_REQ 0x0A +#define A2MP_DISCONNPHYSLINK_REQ 0x0C +struct a2mp_physlink_req { + __u8 local_id; + __u8 remote_id; + __u8 amp_assoc[0]; +} __packed; + +#define A2MP_CREATEPHYSLINK_RSP 0x0B +#define A2MP_DISCONNPHYSLINK_RSP 0x0D +struct a2mp_physlink_rsp { + __u8 local_id; + __u8 remote_id; + __u8 status; +} __packed; + +/* A2MP response status */ +#define A2MP_STATUS_SUCCESS 0x00 +#define A2MP_STATUS_INVALID_CTRL_ID 0x01 +#define A2MP_STATUS_UNABLE_START_LINK_CREATION 0x02 +#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS 0x02 +#define A2MP_STATUS_COLLISION_OCCURED 0x03 +#define A2MP_STATUS_DISCONN_REQ_RECVD 0x04 +#define A2MP_STATUS_PHYS_LINK_EXISTS 0x05 +#define A2MP_STATUS_SECURITY_VIOLATION 0x06 + +extern struct list_head amp_mgr_list; +extern struct mutex amp_mgr_list_lock; + +struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr); +int amp_mgr_put(struct amp_mgr *mgr); +u8 __next_ident(struct amp_mgr *mgr); +struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn, + struct sk_buff *skb); +struct amp_mgr *amp_mgr_lookup_by_state(u8 state); +void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data); +void a2mp_discover_amp(struct l2cap_chan *chan); +void a2mp_send_getinfo_rsp(struct hci_dev *hdev); +void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status); +void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status); +void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status); + +#endif /* __A2MP_H */ diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 9096137c889..f6a1671ea2f 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -25,12 +25,13 @@ /* Bluetooth address family and sockets. */ #include <linux/module.h> +#include <linux/debugfs.h> #include <asm/ioctls.h> #include <net/bluetooth/bluetooth.h> #include <linux/proc_fs.h> -#define VERSION "2.16" +#define VERSION "2.17" /* Bluetooth sockets */ #define BT_MAX_PROTO 8 @@ -221,12 +222,12 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, if (flags & (MSG_OOB)) return -EOPNOTSUPP; - msg->msg_namelen = 0; - skb = skb_recv_datagram(sk, flags, noblock, &err); if (!skb) { - if (sk->sk_shutdown & RCV_SHUTDOWN) + if (sk->sk_shutdown & RCV_SHUTDOWN) { + msg->msg_namelen = 0; return 0; + } return err; } @@ -238,9 +239,16 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock, skb_reset_transport_header(skb); err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); - if (err == 0) + if (err == 0) { sock_recv_ts_and_drops(msg, sk, skb); + if (bt_sk(sk)->skb_msg_name) + bt_sk(sk)->skb_msg_name(skb, msg->msg_name, + &msg->msg_namelen); + else + msg->msg_namelen = 0; + } + skb_free_datagram(sk, skb); return err ? : copied; @@ -490,6 +498,7 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) } EXPORT_SYMBOL(bt_sock_ioctl); +/* This function expects the sk lock to be held when called */ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo) { DECLARE_WAITQUEUE(wait, current); @@ -525,6 +534,46 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo) } EXPORT_SYMBOL(bt_sock_wait_state); +/* This function expects the sk lock to be held when called */ +int bt_sock_wait_ready(struct sock *sk, unsigned long flags) +{ + DECLARE_WAITQUEUE(wait, current); + unsigned long timeo; + int err = 0; + + BT_DBG("sk %p", sk); + + timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); + + add_wait_queue(sk_sleep(sk), &wait); + set_current_state(TASK_INTERRUPTIBLE); + while (test_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags)) { + if (!timeo) { + err = -EAGAIN; + break; + } + + if (signal_pending(current)) { + err = sock_intr_errno(timeo); + break; + } + + release_sock(sk); + timeo = schedule_timeout(timeo); + lock_sock(sk); + set_current_state(TASK_INTERRUPTIBLE); + + err = sock_error(sk); + if (err) + break; + } + __set_current_state(TASK_RUNNING); + remove_wait_queue(sk_sleep(sk), &wait); + + return err; +} +EXPORT_SYMBOL(bt_sock_wait_ready); + #ifdef CONFIG_PROC_FS struct bt_seq_state { struct bt_sock_list *l; @@ -563,7 +612,7 @@ static int bt_seq_show(struct seq_file *seq, void *v) struct bt_sock_list *l = s->l; if (v == SEQ_START_TOKEN) { - seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Src Dst Parent"); + seq_puts(seq ,"sk RefCnt Rmem Wmem User Inode Parent"); if (l->custom_seq_show) { seq_putc(seq, ' '); @@ -576,15 +625,13 @@ static int bt_seq_show(struct seq_file *seq, void *v) struct bt_sock *bt = bt_sk(sk); seq_printf(seq, - "%pK %-6d %-6u %-6u %-6u %-6lu %pMR %pMR %-6lu", + "%pK %-6d %-6u %-6u %-6u %-6lu %-6lu", sk, atomic_read(&sk->sk_refcnt), sk_rmem_alloc_get(sk), sk_wmem_alloc_get(sk), from_kuid(seq_user_ns(seq), sock_i_uid(sk)), sock_i_ino(sk), - &bt->src, - &bt->dst, bt->parent? sock_i_ino(bt->parent): 0LU); if (l->custom_seq_show) { @@ -662,12 +709,17 @@ static struct net_proto_family bt_sock_family_ops = { .create = bt_sock_create, }; +struct dentry *bt_debugfs; +EXPORT_SYMBOL_GPL(bt_debugfs); + static int __init bt_init(void) { int err; BT_INFO("Core ver %s", VERSION); + bt_debugfs = debugfs_create_dir("bluetooth", NULL); + err = bt_sysfs_init(); if (err < 0) return err; @@ -708,7 +760,6 @@ error: static void __exit bt_exit(void) { - sco_exit(); l2cap_exit(); @@ -718,6 +769,8 @@ static void __exit bt_exit(void) sock_unregister(PF_BLUETOOTH); bt_sysfs_cleanup(); + + debugfs_remove_recursive(bt_debugfs); } subsys_initcall(bt_init); diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c index d459ed43c77..bb39509b3f0 100644 --- a/net/bluetooth/amp.c +++ b/net/bluetooth/amp.c @@ -14,10 +14,11 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci.h> #include <net/bluetooth/hci_core.h> -#include <net/bluetooth/a2mp.h> -#include <net/bluetooth/amp.h> #include <crypto/hash.h> +#include "a2mp.h" +#include "amp.h" + /* Remote AMP Controllers interface */ void amp_ctrl_get(struct amp_ctrl *ctrl) { @@ -110,7 +111,7 @@ static u8 __next_handle(struct amp_mgr *mgr) struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, u8 remote_id, bool out) { - bdaddr_t *dst = mgr->l2cap_conn->dst; + bdaddr_t *dst = &mgr->l2cap_conn->hcon->dst; struct hci_conn *hcon; hcon = hci_conn_add(hdev, AMP_LINK, dst); @@ -409,7 +410,8 @@ void amp_create_logical_link(struct l2cap_chan *chan) struct hci_cp_create_accept_logical_link cp; struct hci_dev *hdev; - BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon, chan->conn->dst); + BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon, + &chan->conn->hcon->dst); if (!hs_hcon) return; diff --git a/net/bluetooth/amp.h b/net/bluetooth/amp.h new file mode 100644 index 00000000000..7ea3db77ba8 --- /dev/null +++ b/net/bluetooth/amp.h @@ -0,0 +1,54 @@ +/* + Copyright (c) 2011,2012 Intel Corp. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 and + only version 2 as published by the Free Software Foundation. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. +*/ + +#ifndef __AMP_H +#define __AMP_H + +struct amp_ctrl { + struct list_head list; + struct kref kref; + __u8 id; + __u16 assoc_len_so_far; + __u16 assoc_rem_len; + __u16 assoc_len; + __u8 *assoc; +}; + +int amp_ctrl_put(struct amp_ctrl *ctrl); +void amp_ctrl_get(struct amp_ctrl *ctrl); +struct amp_ctrl *amp_ctrl_add(struct amp_mgr *mgr, u8 id); +struct amp_ctrl *amp_ctrl_lookup(struct amp_mgr *mgr, u8 id); +void amp_ctrl_list_flush(struct amp_mgr *mgr); + +struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr, + u8 remote_id, bool out); + +int phylink_gen_key(struct hci_conn *hcon, u8 *data, u8 *len, u8 *type); + +void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr); +void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle); +void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr); +void amp_read_loc_assoc_final_data(struct hci_dev *hdev, + struct hci_conn *hcon); +void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr, + struct hci_conn *hcon); +void amp_accept_phylink(struct hci_dev *hdev, struct amp_mgr *mgr, + struct hci_conn *hcon); +void amp_write_remote_assoc(struct hci_dev *hdev, u8 handle); +void amp_write_rem_assoc_continue(struct hci_dev *hdev, u8 handle); +void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon); +void amp_create_logical_link(struct l2cap_chan *chan); +void amp_disconnect_logical_link(struct hci_chan *hchan); +void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason); + +#endif /* __AMP_H */ diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c index e430b1abcd2..a841d3e776c 100644 --- a/net/bluetooth/bnep/core.c +++ b/net/bluetooth/bnep/core.c @@ -32,6 +32,7 @@ #include <asm/unaligned.h> #include <net/bluetooth/bluetooth.h> +#include <net/bluetooth/l2cap.h> #include <net/bluetooth/hci_core.h> #include "bnep.h" @@ -510,20 +511,13 @@ static int bnep_session(void *arg) static struct device *bnep_get_device(struct bnep_session *session) { - bdaddr_t *src = &bt_sk(session->sock->sk)->src; - bdaddr_t *dst = &bt_sk(session->sock->sk)->dst; - struct hci_dev *hdev; struct hci_conn *conn; - hdev = hci_get_route(dst, src); - if (!hdev) + conn = l2cap_pi(session->sock->sk)->chan->conn->hcon; + if (!conn) return NULL; - conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); - - hci_dev_put(hdev); - - return conn ? &conn->dev : NULL; + return &conn->dev; } static struct device_type bnep_type = { @@ -539,8 +533,8 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock) BT_DBG(""); - baswap((void *) dst, &bt_sk(sock->sk)->dst); - baswap((void *) src, &bt_sk(sock->sk)->src); + baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst); + baswap((void *) src, &l2cap_pi(sock->sk)->chan->src); /* session struct allocated as private part of net_device */ dev = alloc_netdev(sizeof(struct bnep_session), diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c index e0a6ebf2baa..67fe5e84e68 100644 --- a/net/bluetooth/cmtp/core.c +++ b/net/bluetooth/cmtp/core.c @@ -340,20 +340,20 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock) down_write(&cmtp_session_sem); - s = __cmtp_get_session(&bt_sk(sock->sk)->dst); + s = __cmtp_get_session(&l2cap_pi(sock->sk)->chan->dst); if (s && s->state == BT_CONNECTED) { err = -EEXIST; goto failed; } - bacpy(&session->bdaddr, &bt_sk(sock->sk)->dst); + bacpy(&session->bdaddr, &l2cap_pi(sock->sk)->chan->dst); session->mtu = min_t(uint, l2cap_pi(sock->sk)->chan->omtu, l2cap_pi(sock->sk)->chan->imtu); BT_DBG("mtu %d", session->mtu); - sprintf(session->name, "%pMR", &bt_sk(sock->sk)->dst); + sprintf(session->name, "%pMR", &session->bdaddr); session->sock = sock; session->state = BT_CONFIG; diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index f0817121ec5..ba5366c320d 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -28,8 +28,9 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> -#include <net/bluetooth/a2mp.h> -#include <net/bluetooth/smp.h> + +#include "smp.h" +#include "a2mp.h" struct sco_param { u16 pkt_type; @@ -49,30 +50,6 @@ static const struct sco_param sco_param_wideband[] = { { EDR_ESCO_MASK | ESCO_EV3, 0x0008 }, /* T1 */ }; -static void hci_le_create_connection(struct hci_conn *conn) -{ - struct hci_dev *hdev = conn->hdev; - struct hci_cp_le_create_conn cp; - - conn->state = BT_CONNECT; - conn->out = true; - conn->link_mode |= HCI_LM_MASTER; - conn->sec_level = BT_SECURITY_LOW; - - memset(&cp, 0, sizeof(cp)); - cp.scan_interval = __constant_cpu_to_le16(0x0060); - cp.scan_window = __constant_cpu_to_le16(0x0030); - bacpy(&cp.peer_addr, &conn->dst); - cp.peer_addr_type = conn->dst_type; - cp.conn_interval_min = __constant_cpu_to_le16(0x0028); - cp.conn_interval_max = __constant_cpu_to_le16(0x0038); - cp.supervision_timeout = __constant_cpu_to_le16(0x002a); - cp.min_ce_len = __constant_cpu_to_le16(0x0000); - cp.max_ce_len = __constant_cpu_to_le16(0x0000); - - hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp); -} - static void hci_le_create_connection_cancel(struct hci_conn *conn) { hci_send_cmd(conn->hdev, HCI_OP_LE_CREATE_CONN_CANCEL, 0, NULL); @@ -340,8 +317,10 @@ static void hci_conn_timeout(struct work_struct *work) } /* Enter sniff mode */ -static void hci_conn_enter_sniff_mode(struct hci_conn *conn) +static void hci_conn_idle(struct work_struct *work) { + struct hci_conn *conn = container_of(work, struct hci_conn, + idle_work.work); struct hci_dev *hdev = conn->hdev; BT_DBG("hcon %p mode %d", conn, conn->mode); @@ -375,21 +354,12 @@ static void hci_conn_enter_sniff_mode(struct hci_conn *conn) } } -static void hci_conn_idle(unsigned long arg) -{ - struct hci_conn *conn = (void *) arg; - - BT_DBG("hcon %p mode %d", conn, conn->mode); - - hci_conn_enter_sniff_mode(conn); -} - -static void hci_conn_auto_accept(unsigned long arg) +static void hci_conn_auto_accept(struct work_struct *work) { - struct hci_conn *conn = (void *) arg; - struct hci_dev *hdev = conn->hdev; + struct hci_conn *conn = container_of(work, struct hci_conn, + auto_accept_work.work); - hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst), + hci_send_cmd(conn->hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst), &conn->dst); } @@ -404,6 +374,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) return NULL; bacpy(&conn->dst, dst); + bacpy(&conn->src, &hdev->bdaddr); conn->hdev = hdev; conn->type = type; conn->mode = HCI_CM_ACTIVE; @@ -437,9 +408,8 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) INIT_LIST_HEAD(&conn->chan_list); INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout); - setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn); - setup_timer(&conn->auto_accept_timer, hci_conn_auto_accept, - (unsigned long) conn); + INIT_DELAYED_WORK(&conn->auto_accept_work, hci_conn_auto_accept); + INIT_DELAYED_WORK(&conn->idle_work, hci_conn_idle); atomic_set(&conn->refcnt, 0); @@ -460,11 +430,9 @@ int hci_conn_del(struct hci_conn *conn) BT_DBG("%s hcon %p handle %d", hdev->name, conn, conn->handle); - del_timer(&conn->idle_timer); - cancel_delayed_work_sync(&conn->disc_work); - - del_timer(&conn->auto_accept_timer); + cancel_delayed_work_sync(&conn->auto_accept_work); + cancel_delayed_work_sync(&conn->idle_work); if (conn->type == ACL_LINK) { struct hci_conn *sco = conn->link; @@ -518,6 +486,7 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src) list_for_each_entry(d, &hci_dev_list, list) { if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags) || + test_bit(HCI_USER_CHANNEL, &d->dev_flags) || d->dev_type != HCI_BREDR) continue; @@ -545,34 +514,124 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src) } EXPORT_SYMBOL(hci_get_route); +static void create_le_conn_complete(struct hci_dev *hdev, u8 status) +{ + struct hci_conn *conn; + + if (status == 0) + return; + + BT_ERR("HCI request failed to create LE connection: status 0x%2.2x", + status); + + hci_dev_lock(hdev); + + conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); + if (!conn) + goto done; + + conn->state = BT_CLOSED; + + mgmt_connect_failed(hdev, &conn->dst, conn->type, conn->dst_type, + status); + + hci_proto_connect_cfm(conn, status); + + hci_conn_del(conn); + +done: + hci_dev_unlock(hdev); +} + +static int hci_create_le_conn(struct hci_conn *conn) +{ + struct hci_dev *hdev = conn->hdev; + struct hci_cp_le_create_conn cp; + struct hci_request req; + int err; + + hci_req_init(&req, hdev); + + memset(&cp, 0, sizeof(cp)); + cp.scan_interval = cpu_to_le16(hdev->le_scan_interval); + cp.scan_window = cpu_to_le16(hdev->le_scan_window); + bacpy(&cp.peer_addr, &conn->dst); + cp.peer_addr_type = conn->dst_type; + cp.own_address_type = conn->src_type; + cp.conn_interval_min = cpu_to_le16(hdev->le_conn_min_interval); + cp.conn_interval_max = cpu_to_le16(hdev->le_conn_max_interval); + cp.supervision_timeout = __constant_cpu_to_le16(0x002a); + cp.min_ce_len = __constant_cpu_to_le16(0x0000); + cp.max_ce_len = __constant_cpu_to_le16(0x0000); + + hci_req_add(&req, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp); + + err = hci_req_run(&req, create_le_conn_complete); + if (err) { + hci_conn_del(conn); + return err; + } + + return 0; +} + static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, u8 dst_type, u8 sec_level, u8 auth_type) { - struct hci_conn *le; + struct hci_conn *conn; + int err; - if (test_bit(HCI_LE_PERIPHERAL, &hdev->flags)) + if (test_bit(HCI_ADVERTISING, &hdev->flags)) return ERR_PTR(-ENOTSUPP); - le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst); - if (!le) { - le = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); - if (le) - return ERR_PTR(-EBUSY); + /* Some devices send ATT messages as soon as the physical link is + * established. To be able to handle these ATT messages, the user- + * space first establishes the connection and then starts the pairing + * process. + * + * So if a hci_conn object already exists for the following connection + * attempt, we simply update pending_sec_level and auth_type fields + * and return the object found. + */ + conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst); + if (conn) { + conn->pending_sec_level = sec_level; + conn->auth_type = auth_type; + goto done; + } - le = hci_conn_add(hdev, LE_LINK, dst); - if (!le) - return ERR_PTR(-ENOMEM); + /* Since the controller supports only one LE connection attempt at a + * time, we return -EBUSY if there is any connection attempt running. + */ + conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); + if (conn) + return ERR_PTR(-EBUSY); - le->dst_type = bdaddr_to_le(dst_type); - hci_le_create_connection(le); - } + conn = hci_conn_add(hdev, LE_LINK, dst); + if (!conn) + return ERR_PTR(-ENOMEM); - le->pending_sec_level = sec_level; - le->auth_type = auth_type; + if (dst_type == BDADDR_LE_PUBLIC) + conn->dst_type = ADDR_LE_DEV_PUBLIC; + else + conn->dst_type = ADDR_LE_DEV_RANDOM; - hci_conn_hold(le); + conn->src_type = hdev->own_addr_type; - return le; + conn->state = BT_CONNECT; + conn->out = true; + conn->link_mode |= HCI_LM_MASTER; + conn->sec_level = BT_SECURITY_LOW; + conn->pending_sec_level = sec_level; + conn->auth_type = auth_type; + + err = hci_create_le_conn(conn); + if (err) + return ERR_PTR(err); + +done: + hci_conn_hold(conn); + return conn; } static struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, @@ -580,6 +639,9 @@ static struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, { struct hci_conn *acl; + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + return ERR_PTR(-ENOTSUPP); + acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); if (!acl) { acl = hci_conn_add(hdev, ACL_LINK, dst); @@ -846,8 +908,8 @@ void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active) timer: if (hdev->idle_timeout > 0) - mod_timer(&conn->idle_timer, - jiffies + msecs_to_jiffies(hdev->idle_timeout)); + queue_delayed_work(hdev->workqueue, &conn->idle_work, + msecs_to_jiffies(hdev->idle_timeout)); } /* Drop all connection on the device */ diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 634debab4d5..6ccc4eb9e55 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -27,8 +27,9 @@ #include <linux/export.h> #include <linux/idr.h> - #include <linux/rfkill.h> +#include <linux/debugfs.h> +#include <asm/unaligned.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> @@ -55,6 +56,586 @@ static void hci_notify(struct hci_dev *hdev, int event) hci_sock_dev_event(hdev, event); } +/* ---- HCI debugfs entries ---- */ + +static ssize_t dut_mode_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[3]; + + buf[0] = test_bit(HCI_DUT_MODE, &hdev->dev_flags) ? 'Y': 'N'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t dut_mode_write(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + struct sk_buff *skb; + char buf[32]; + size_t buf_size = min(count, (sizeof(buf)-1)); + bool enable; + int err; + + if (!test_bit(HCI_UP, &hdev->flags)) + return -ENETDOWN; + + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + buf[buf_size] = '\0'; + if (strtobool(buf, &enable)) + return -EINVAL; + + if (enable == test_bit(HCI_DUT_MODE, &hdev->dev_flags)) + return -EALREADY; + + hci_req_lock(hdev); + if (enable) + skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL, + HCI_CMD_TIMEOUT); + else + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, + HCI_CMD_TIMEOUT); + hci_req_unlock(hdev); + + if (IS_ERR(skb)) + return PTR_ERR(skb); + + err = -bt_to_errno(skb->data[0]); + kfree_skb(skb); + + if (err < 0) + return err; + + change_bit(HCI_DUT_MODE, &hdev->dev_flags); + + return count; +} + +static const struct file_operations dut_mode_fops = { + .open = simple_open, + .read = dut_mode_read, + .write = dut_mode_write, + .llseek = default_llseek, +}; + +static int features_show(struct seq_file *f, void *ptr) +{ + struct hci_dev *hdev = f->private; + u8 p; + + hci_dev_lock(hdev); + for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) { + seq_printf(f, "%2u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x " + "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p, + hdev->features[p][0], hdev->features[p][1], + hdev->features[p][2], hdev->features[p][3], + hdev->features[p][4], hdev->features[p][5], + hdev->features[p][6], hdev->features[p][7]); + } + if (lmp_le_capable(hdev)) + seq_printf(f, "LE: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x " + "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", + hdev->le_features[0], hdev->le_features[1], + hdev->le_features[2], hdev->le_features[3], + hdev->le_features[4], hdev->le_features[5], + hdev->le_features[6], hdev->le_features[7]); + hci_dev_unlock(hdev); + + return 0; +} + +static int features_open(struct inode *inode, struct file *file) +{ + return single_open(file, features_show, inode->i_private); +} + +static const struct file_operations features_fops = { + .open = features_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int blacklist_show(struct seq_file *f, void *p) +{ + struct hci_dev *hdev = f->private; + struct bdaddr_list *b; + + hci_dev_lock(hdev); + list_for_each_entry(b, &hdev->blacklist, list) + seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type); + hci_dev_unlock(hdev); + + return 0; +} + +static int blacklist_open(struct inode *inode, struct file *file) +{ + return single_open(file, blacklist_show, inode->i_private); +} + +static const struct file_operations blacklist_fops = { + .open = blacklist_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int uuids_show(struct seq_file *f, void *p) +{ + struct hci_dev *hdev = f->private; + struct bt_uuid *uuid; + + hci_dev_lock(hdev); + list_for_each_entry(uuid, &hdev->uuids, list) { + u8 i, val[16]; + + /* The Bluetooth UUID values are stored in big endian, + * but with reversed byte order. So convert them into + * the right order for the %pUb modifier. + */ + for (i = 0; i < 16; i++) + val[i] = uuid->uuid[15 - i]; + + seq_printf(f, "%pUb\n", val); + } + hci_dev_unlock(hdev); + + return 0; +} + +static int uuids_open(struct inode *inode, struct file *file) +{ + return single_open(file, uuids_show, inode->i_private); +} + +static const struct file_operations uuids_fops = { + .open = uuids_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int inquiry_cache_show(struct seq_file *f, void *p) +{ + struct hci_dev *hdev = f->private; + struct discovery_state *cache = &hdev->discovery; + struct inquiry_entry *e; + + hci_dev_lock(hdev); + + list_for_each_entry(e, &cache->all, all) { + struct inquiry_data *data = &e->data; + seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", + &data->bdaddr, + data->pscan_rep_mode, data->pscan_period_mode, + data->pscan_mode, data->dev_class[2], + data->dev_class[1], data->dev_class[0], + __le16_to_cpu(data->clock_offset), + data->rssi, data->ssp_mode, e->timestamp); + } + + hci_dev_unlock(hdev); + + return 0; +} + +static int inquiry_cache_open(struct inode *inode, struct file *file) +{ + return single_open(file, inquiry_cache_show, inode->i_private); +} + +static const struct file_operations inquiry_cache_fops = { + .open = inquiry_cache_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int link_keys_show(struct seq_file *f, void *ptr) +{ + struct hci_dev *hdev = f->private; + struct list_head *p, *n; + + hci_dev_lock(hdev); + list_for_each_safe(p, n, &hdev->link_keys) { + struct link_key *key = list_entry(p, struct link_key, list); + seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type, + HCI_LINK_KEY_SIZE, key->val, key->pin_len); + } + hci_dev_unlock(hdev); + + return 0; +} + +static int link_keys_open(struct inode *inode, struct file *file) +{ + return single_open(file, link_keys_show, inode->i_private); +} + +static const struct file_operations link_keys_fops = { + .open = link_keys_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct hci_dev *hdev = file->private_data; + char buf[3]; + + buf[0] = test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) ? 'Y': 'N'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static const struct file_operations use_debug_keys_fops = { + .open = simple_open, + .read = use_debug_keys_read, + .llseek = default_llseek, +}; + +static int dev_class_show(struct seq_file *f, void *ptr) +{ + struct hci_dev *hdev = f->private; + + hci_dev_lock(hdev); + seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2], + hdev->dev_class[1], hdev->dev_class[0]); + hci_dev_unlock(hdev); + + return 0; +} + +static int dev_class_open(struct inode *inode, struct file *file) +{ + return single_open(file, dev_class_show, inode->i_private); +} + +static const struct file_operations dev_class_fops = { + .open = dev_class_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int voice_setting_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->voice_setting; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get, + NULL, "0x%4.4llx\n"); + +static int auto_accept_delay_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + hdev->auto_accept_delay = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int auto_accept_delay_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->auto_accept_delay; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, + auto_accept_delay_set, "%llu\n"); + +static int ssp_debug_mode_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + struct sk_buff *skb; + __u8 mode; + int err; + + if (val != 0 && val != 1) + return -EINVAL; + + if (!test_bit(HCI_UP, &hdev->flags)) + return -ENETDOWN; + + hci_req_lock(hdev); + mode = val; + skb = __hci_cmd_sync(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE, sizeof(mode), + &mode, HCI_CMD_TIMEOUT); + hci_req_unlock(hdev); + + if (IS_ERR(skb)) + return PTR_ERR(skb); + + err = -bt_to_errno(skb->data[0]); + kfree_skb(skb); + + if (err < 0) + return err; + + hci_dev_lock(hdev); + hdev->ssp_debug_mode = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int ssp_debug_mode_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->ssp_debug_mode; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(ssp_debug_mode_fops, ssp_debug_mode_get, + ssp_debug_mode_set, "%llu\n"); + +static int idle_timeout_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val != 0 && (val < 500 || val > 3600000)) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->idle_timeout = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int idle_timeout_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->idle_timeout; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get, + idle_timeout_set, "%llu\n"); + +static int sniff_min_interval_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val == 0 || val % 2 || val > hdev->sniff_max_interval) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->sniff_min_interval = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int sniff_min_interval_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->sniff_min_interval; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get, + sniff_min_interval_set, "%llu\n"); + +static int sniff_max_interval_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val == 0 || val % 2 || val < hdev->sniff_min_interval) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->sniff_max_interval = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int sniff_max_interval_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->sniff_max_interval; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get, + sniff_max_interval_set, "%llu\n"); + +static int static_address_show(struct seq_file *f, void *p) +{ + struct hci_dev *hdev = f->private; + + hci_dev_lock(hdev); + seq_printf(f, "%pMR\n", &hdev->static_addr); + hci_dev_unlock(hdev); + + return 0; +} + +static int static_address_open(struct inode *inode, struct file *file) +{ + return single_open(file, static_address_show, inode->i_private); +} + +static const struct file_operations static_address_fops = { + .open = static_address_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int own_address_type_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val != 0 && val != 1) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->own_addr_type = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int own_address_type_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->own_addr_type; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(own_address_type_fops, own_address_type_get, + own_address_type_set, "%llu\n"); + +static int long_term_keys_show(struct seq_file *f, void *ptr) +{ + struct hci_dev *hdev = f->private; + struct list_head *p, *n; + + hci_dev_lock(hdev); + list_for_each_safe(p, n, &hdev->link_keys) { + struct smp_ltk *ltk = list_entry(p, struct smp_ltk, list); + seq_printf(f, "%pMR (type %u) %u %u %u %.4x %*phN %*phN\\n", + <k->bdaddr, ltk->bdaddr_type, ltk->authenticated, + ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv), + 8, ltk->rand, 16, ltk->val); + } + hci_dev_unlock(hdev); + + return 0; +} + +static int long_term_keys_open(struct inode *inode, struct file *file) +{ + return single_open(file, long_term_keys_show, inode->i_private); +} + +static const struct file_operations long_term_keys_fops = { + .open = long_term_keys_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int conn_min_interval_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->le_conn_min_interval = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int conn_min_interval_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->le_conn_min_interval; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get, + conn_min_interval_set, "%llu\n"); + +static int conn_max_interval_set(void *data, u64 val) +{ + struct hci_dev *hdev = data; + + if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval) + return -EINVAL; + + hci_dev_lock(hdev); + hdev->le_conn_max_interval = val; + hci_dev_unlock(hdev); + + return 0; +} + +static int conn_max_interval_get(void *data, u64 *val) +{ + struct hci_dev *hdev = data; + + hci_dev_lock(hdev); + *val = hdev->le_conn_max_interval; + hci_dev_unlock(hdev); + + return 0; +} + +DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get, + conn_max_interval_set, "%llu\n"); + /* ---- HCI requests ---- */ static void hci_req_sync_complete(struct hci_dev *hdev, u8 result) @@ -307,11 +888,23 @@ static void amp_init(struct hci_request *req) /* Read Local Version */ hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL); + /* Read Local Supported Commands */ + hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); + + /* Read Local Supported Features */ + hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL); + /* Read Local AMP Info */ hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL); /* Read Data Blk size */ hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL); + + /* Read Flow Control Mode */ + hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL); + + /* Read Location Data */ + hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL); } static void hci_init1_req(struct hci_request *req, unsigned long opt) @@ -341,6 +934,8 @@ static void hci_init1_req(struct hci_request *req, unsigned long opt) static void bredr_setup(struct hci_request *req) { + struct hci_dev *hdev = req->hdev; + __le16 param; __u8 flt_type; @@ -356,6 +951,12 @@ static void bredr_setup(struct hci_request *req) /* Read Voice Setting */ hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL); + /* Read Number of Supported IAC */ + hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL); + + /* Read Current IAC LAP */ + hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL); + /* Clear Event Filters */ flt_type = HCI_FLT_CLEAR_ALL; hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type); @@ -364,8 +965,10 @@ static void bredr_setup(struct hci_request *req) param = __constant_cpu_to_le16(0x7d00); hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, ¶m); - /* Read page scan parameters */ - if (req->hdev->hci_ver > BLUETOOTH_VER_1_1) { + /* AVM Berlin (31), aka "BlueFRITZ!", reports version 1.2, + * but it does not support page scan related HCI commands. + */ + if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) { hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL); hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL); } @@ -519,6 +1122,8 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt) if (lmp_bredr_capable(hdev)) bredr_setup(req); + else + clear_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); if (lmp_le_capable(hdev)) le_setup(req); @@ -532,6 +1137,14 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt) hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL); if (lmp_ssp_capable(hdev)) { + /* When SSP is available, then the host features page + * should also be available as well. However some + * controllers list the max_page as 0 as long as SSP + * has not been enabled. To achieve proper debugging + * output, force the minimum max_page to 1 at least. + */ + hdev->max_page = 0x01; + if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { u8 mode = 0x01; hci_req_add(req, HCI_OP_WRITE_SSP_MODE, @@ -607,6 +1220,34 @@ static void hci_set_le_support(struct hci_request *req) &cp); } +static void hci_set_event_mask_page_2(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + u8 events[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; + + /* If Connectionless Slave Broadcast master role is supported + * enable all necessary events for it. + */ + if (hdev->features[2][0] & 0x01) { + events[1] |= 0x40; /* Triggered Clock Capture */ + events[1] |= 0x80; /* Synchronization Train Complete */ + events[2] |= 0x10; /* Slave Page Response Timeout */ + events[2] |= 0x20; /* CSB Channel Map Change */ + } + + /* If Connectionless Slave Broadcast slave role is supported + * enable all necessary events for it. + */ + if (hdev->features[2][0] & 0x02) { + events[2] |= 0x01; /* Synchronization Train Received */ + events[2] |= 0x02; /* CSB Receive */ + events[2] |= 0x04; /* CSB Timeout */ + events[2] |= 0x08; /* Truncated Page Complete */ + } + + hci_req_add(req, HCI_OP_SET_EVENT_MASK_PAGE_2, sizeof(events), events); +} + static void hci_init3_req(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; @@ -634,8 +1275,17 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt) hci_setup_link_policy(req); if (lmp_le_capable(hdev)) { + /* If the controller has a public BD_ADDR, then by + * default use that one. If this is a LE only + * controller without one, default to the random + * address. + */ + if (bacmp(&hdev->bdaddr, BDADDR_ANY)) + hdev->own_addr_type = ADDR_LE_DEV_PUBLIC; + else + hdev->own_addr_type = ADDR_LE_DEV_RANDOM; + hci_set_le_support(req); - hci_update_ad(req); } /* Read features beyond page 1 if available */ @@ -648,6 +1298,19 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt) } } +static void hci_init4_req(struct hci_request *req, unsigned long opt) +{ + struct hci_dev *hdev = req->hdev; + + /* Set event mask page 2 if the HCI command for it is supported */ + if (hdev->commands[22] & 0x04) + hci_set_event_mask_page_2(req); + + /* Check for Synchronization Train support */ + if (hdev->features[2][0] & 0x04) + hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL); +} + static int __hci_init(struct hci_dev *hdev) { int err; @@ -656,6 +1319,14 @@ static int __hci_init(struct hci_dev *hdev) if (err < 0) return err; + /* The Device Under Test (DUT) mode is special and available for + * all controller types. So just create it early on. + */ + if (test_bit(HCI_SETUP, &hdev->dev_flags)) { + debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev, + &dut_mode_fops); + } + /* HCI_BREDR covers both single-mode LE, BR/EDR and dual-mode * BR/EDR/LE type controllers. AMP controllers only need the * first stage init. @@ -667,7 +1338,75 @@ static int __hci_init(struct hci_dev *hdev) if (err < 0) return err; - return __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT); + err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT); + if (err < 0) + return err; + + err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT); + if (err < 0) + return err; + + /* Only create debugfs entries during the initial setup + * phase and not every time the controller gets powered on. + */ + if (!test_bit(HCI_SETUP, &hdev->dev_flags)) + return 0; + + debugfs_create_file("features", 0444, hdev->debugfs, hdev, + &features_fops); + debugfs_create_u16("manufacturer", 0444, hdev->debugfs, + &hdev->manufacturer); + debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver); + debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev); + debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev, + &blacklist_fops); + debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops); + + if (lmp_bredr_capable(hdev)) { + debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, + hdev, &inquiry_cache_fops); + debugfs_create_file("link_keys", 0400, hdev->debugfs, + hdev, &link_keys_fops); + debugfs_create_file("use_debug_keys", 0444, hdev->debugfs, + hdev, &use_debug_keys_fops); + debugfs_create_file("dev_class", 0444, hdev->debugfs, + hdev, &dev_class_fops); + debugfs_create_file("voice_setting", 0444, hdev->debugfs, + hdev, &voice_setting_fops); + } + + if (lmp_ssp_capable(hdev)) { + debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs, + hdev, &auto_accept_delay_fops); + debugfs_create_file("ssp_debug_mode", 0644, hdev->debugfs, + hdev, &ssp_debug_mode_fops); + } + + if (lmp_sniff_capable(hdev)) { + debugfs_create_file("idle_timeout", 0644, hdev->debugfs, + hdev, &idle_timeout_fops); + debugfs_create_file("sniff_min_interval", 0644, hdev->debugfs, + hdev, &sniff_min_interval_fops); + debugfs_create_file("sniff_max_interval", 0644, hdev->debugfs, + hdev, &sniff_max_interval_fops); + } + + if (lmp_le_capable(hdev)) { + debugfs_create_u8("white_list_size", 0444, hdev->debugfs, + &hdev->le_white_list_size); + debugfs_create_file("static_address", 0444, hdev->debugfs, + hdev, &static_address_fops); + debugfs_create_file("own_address_type", 0644, hdev->debugfs, + hdev, &own_address_type_fops); + debugfs_create_file("long_term_keys", 0400, hdev->debugfs, + hdev, &long_term_keys_fops); + debugfs_create_file("conn_min_interval", 0644, hdev->debugfs, + hdev, &conn_min_interval_fops); + debugfs_create_file("conn_max_interval", 0644, hdev->debugfs, + hdev, &conn_max_interval_fops); + } + + return 0; } static void hci_scan_req(struct hci_request *req, unsigned long opt) @@ -984,6 +1723,21 @@ int hci_inquiry(void __user *arg) if (!hdev) return -ENODEV; + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + err = -EBUSY; + goto done; + } + + if (hdev->dev_type != HCI_BREDR) { + err = -EOPNOTSUPP; + goto done; + } + + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { + err = -EOPNOTSUPP; + goto done; + } + hci_dev_lock(hdev); if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX || inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) { @@ -1043,100 +1797,10 @@ done: return err; } -static u8 create_ad(struct hci_dev *hdev, u8 *ptr) -{ - u8 ad_len = 0, flags = 0; - size_t name_len; - - if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) - flags |= LE_AD_GENERAL; - - if (!lmp_bredr_capable(hdev)) - flags |= LE_AD_NO_BREDR; - - if (lmp_le_br_capable(hdev)) - flags |= LE_AD_SIM_LE_BREDR_CTRL; - - if (lmp_host_le_br_capable(hdev)) - flags |= LE_AD_SIM_LE_BREDR_HOST; - - if (flags) { - BT_DBG("adv flags 0x%02x", flags); - - ptr[0] = 2; - ptr[1] = EIR_FLAGS; - ptr[2] = flags; - - ad_len += 3; - ptr += 3; - } - - if (hdev->adv_tx_power != HCI_TX_POWER_INVALID) { - ptr[0] = 2; - ptr[1] = EIR_TX_POWER; - ptr[2] = (u8) hdev->adv_tx_power; - - ad_len += 3; - ptr += 3; - } - - name_len = strlen(hdev->dev_name); - if (name_len > 0) { - size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2; - - if (name_len > max_len) { - name_len = max_len; - ptr[1] = EIR_NAME_SHORT; - } else - ptr[1] = EIR_NAME_COMPLETE; - - ptr[0] = name_len + 1; - - memcpy(ptr + 2, hdev->dev_name, name_len); - - ad_len += (name_len + 2); - ptr += (name_len + 2); - } - - return ad_len; -} - -void hci_update_ad(struct hci_request *req) +static int hci_dev_do_open(struct hci_dev *hdev) { - struct hci_dev *hdev = req->hdev; - struct hci_cp_le_set_adv_data cp; - u8 len; - - if (!lmp_le_capable(hdev)) - return; - - memset(&cp, 0, sizeof(cp)); - - len = create_ad(hdev, cp.data); - - if (hdev->adv_data_len == len && - memcmp(cp.data, hdev->adv_data, len) == 0) - return; - - memcpy(hdev->adv_data, cp.data, sizeof(cp.data)); - hdev->adv_data_len = len; - - cp.length = len; - - hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp); -} - -/* ---- HCI ioctl helpers ---- */ - -int hci_dev_open(__u16 dev) -{ - struct hci_dev *hdev; int ret = 0; - hdev = hci_dev_get(dev); - if (!hdev) - return -ENODEV; - BT_DBG("%s %p", hdev->name, hdev); hci_req_lock(hdev); @@ -1146,9 +1810,29 @@ int hci_dev_open(__u16 dev) goto done; } - if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) { - ret = -ERFKILL; - goto done; + if (!test_bit(HCI_SETUP, &hdev->dev_flags)) { + /* Check for rfkill but allow the HCI setup stage to + * proceed (which in itself doesn't cause any RF activity). + */ + if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) { + ret = -ERFKILL; + goto done; + } + + /* Check for valid public address or a configured static + * random adddress, but let the HCI setup proceed to + * be able to determine if there is a public address + * or not. + * + * This check is only valid for BR/EDR controllers + * since AMP controllers do not have an address. + */ + if (hdev->dev_type == HCI_BREDR && + !bacmp(&hdev->bdaddr, BDADDR_ANY) && + !bacmp(&hdev->static_addr, BDADDR_ANY)) { + ret = -EADDRNOTAVAIL; + goto done; + } } if (test_bit(HCI_UP, &hdev->flags)) { @@ -1168,16 +1852,11 @@ int hci_dev_open(__u16 dev) ret = hdev->setup(hdev); if (!ret) { - /* Treat all non BR/EDR controllers as raw devices if - * enable_hs is not set. - */ - if (hdev->dev_type != HCI_BREDR && !enable_hs) - set_bit(HCI_RAW, &hdev->flags); - if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) set_bit(HCI_RAW, &hdev->flags); - if (!test_bit(HCI_RAW, &hdev->flags)) + if (!test_bit(HCI_RAW, &hdev->flags) && + !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) ret = __hci_init(hdev); } @@ -1188,7 +1867,8 @@ int hci_dev_open(__u16 dev) set_bit(HCI_UP, &hdev->flags); hci_notify(hdev, HCI_DEV_UP); if (!test_bit(HCI_SETUP, &hdev->dev_flags) && - mgmt_valid_hdev(hdev)) { + !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) && + hdev->dev_type == HCI_BREDR) { hci_dev_lock(hdev); mgmt_powered(hdev, 1); hci_dev_unlock(hdev); @@ -1216,10 +1896,41 @@ int hci_dev_open(__u16 dev) done: hci_req_unlock(hdev); - hci_dev_put(hdev); return ret; } +/* ---- HCI ioctl helpers ---- */ + +int hci_dev_open(__u16 dev) +{ + struct hci_dev *hdev; + int err; + + hdev = hci_dev_get(dev); + if (!hdev) + return -ENODEV; + + /* We need to ensure that no other power on/off work is pending + * before proceeding to call hci_dev_do_open. This is + * particularly important if the setup procedure has not yet + * completed. + */ + if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) + cancel_delayed_work(&hdev->power_off); + + /* After this call it is guaranteed that the setup procedure + * has finished. This means that error conditions like RFKILL + * or no valid public or static random address apply. + */ + flush_workqueue(hdev->req_workqueue); + + err = hci_dev_do_open(hdev); + + hci_dev_put(hdev); + + return err; +} + static int hci_dev_do_close(struct hci_dev *hdev) { BT_DBG("%s %p", hdev->name, hdev); @@ -1243,6 +1954,7 @@ static int hci_dev_do_close(struct hci_dev *hdev) cancel_delayed_work(&hdev->discov_off); hdev->discov_timeout = 0; clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); } if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) @@ -1264,6 +1976,7 @@ static int hci_dev_do_close(struct hci_dev *hdev) skb_queue_purge(&hdev->cmd_q); atomic_set(&hdev->cmd_cnt, 1); if (!test_bit(HCI_RAW, &hdev->flags) && + !test_bit(HCI_AUTO_OFF, &hdev->dev_flags) && test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) { set_bit(HCI_INIT, &hdev->flags); __hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT); @@ -1296,15 +2009,16 @@ static int hci_dev_do_close(struct hci_dev *hdev) hdev->flags = 0; hdev->dev_flags &= ~HCI_PERSISTENT_MASK; - if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags) && - mgmt_valid_hdev(hdev)) { - hci_dev_lock(hdev); - mgmt_powered(hdev, 0); - hci_dev_unlock(hdev); + if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { + if (hdev->dev_type == HCI_BREDR) { + hci_dev_lock(hdev); + mgmt_powered(hdev, 0); + hci_dev_unlock(hdev); + } } /* Controller radio is available but is currently powered down */ - hdev->amp_status = 0; + hdev->amp_status = AMP_STATUS_POWERED_DOWN; memset(hdev->eir, 0, sizeof(hdev->eir)); memset(hdev->dev_class, 0, sizeof(hdev->dev_class)); @@ -1324,11 +2038,17 @@ int hci_dev_close(__u16 dev) if (!hdev) return -ENODEV; + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + err = -EBUSY; + goto done; + } + if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) cancel_delayed_work(&hdev->power_off); err = hci_dev_do_close(hdev); +done: hci_dev_put(hdev); return err; } @@ -1344,8 +2064,15 @@ int hci_dev_reset(__u16 dev) hci_req_lock(hdev); - if (!test_bit(HCI_UP, &hdev->flags)) + if (!test_bit(HCI_UP, &hdev->flags)) { + ret = -ENETDOWN; goto done; + } + + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + ret = -EBUSY; + goto done; + } /* Drop queues */ skb_queue_purge(&hdev->rx_q); @@ -1380,10 +2107,15 @@ int hci_dev_reset_stat(__u16 dev) if (!hdev) return -ENODEV; + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + ret = -EBUSY; + goto done; + } + memset(&hdev->stat, 0, sizeof(struct hci_dev_stats)); +done: hci_dev_put(hdev); - return ret; } @@ -1400,6 +2132,21 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) if (!hdev) return -ENODEV; + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + err = -EBUSY; + goto done; + } + + if (hdev->dev_type != HCI_BREDR) { + err = -EOPNOTSUPP; + goto done; + } + + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { + err = -EOPNOTSUPP; + goto done; + } + switch (cmd) { case HCISETAUTH: err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt, @@ -1458,6 +2205,7 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg) break; } +done: hci_dev_put(hdev); return err; } @@ -1530,7 +2278,7 @@ int hci_get_dev_info(void __user *arg) strcpy(di.name, hdev->name); di.bdaddr = hdev->bdaddr; - di.type = (hdev->bus & 0x0f) | (hdev->dev_type << 4); + di.type = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4); di.flags = hdev->flags; di.pkt_type = hdev->pkt_type; if (lmp_bredr_capable(hdev)) { @@ -1566,10 +2314,16 @@ static int hci_rfkill_set_block(void *data, bool blocked) BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked); - if (!blocked) - return 0; + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) + return -EBUSY; - hci_dev_do_close(hdev); + if (blocked) { + set_bit(HCI_RFKILLED, &hdev->dev_flags); + if (!test_bit(HCI_SETUP, &hdev->dev_flags)) + hci_dev_do_close(hdev); + } else { + clear_bit(HCI_RFKILLED, &hdev->dev_flags); + } return 0; } @@ -1585,15 +2339,26 @@ static void hci_power_on(struct work_struct *work) BT_DBG("%s", hdev->name); - err = hci_dev_open(hdev->id); + err = hci_dev_do_open(hdev); if (err < 0) { mgmt_set_powered_failed(hdev, err); return; } - if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) + /* During the HCI setup phase, a few error conditions are + * ignored and they need to be checked now. If they are still + * valid, it is important to turn the device back off. + */ + if (test_bit(HCI_RFKILLED, &hdev->dev_flags) || + (hdev->dev_type == HCI_BREDR && + !bacmp(&hdev->bdaddr, BDADDR_ANY) && + !bacmp(&hdev->static_addr, BDADDR_ANY))) { + clear_bit(HCI_AUTO_OFF, &hdev->dev_flags); + hci_dev_do_close(hdev); + } else if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { queue_delayed_work(hdev->req_workqueue, &hdev->power_off, HCI_AUTO_OFF_TIMEOUT); + } if (test_and_clear_bit(HCI_SETUP, &hdev->dev_flags)) mgmt_index_added(hdev); @@ -1612,19 +2377,12 @@ static void hci_power_off(struct work_struct *work) static void hci_discov_off(struct work_struct *work) { struct hci_dev *hdev; - u8 scan = SCAN_PAGE; hdev = container_of(work, struct hci_dev, discov_off.work); BT_DBG("%s", hdev->name); - hci_dev_lock(hdev); - - hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan); - - hdev->discov_timeout = 0; - - hci_dev_unlock(hdev); + mgmt_discoverable_timeout(hdev); } int hci_uuids_clear(struct hci_dev *hdev) @@ -1947,13 +2705,15 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, return 0; } -struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr) +struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, + bdaddr_t *bdaddr, u8 type) { struct bdaddr_list *b; - list_for_each_entry(b, &hdev->blacklist, list) - if (bacmp(bdaddr, &b->bdaddr) == 0) + list_for_each_entry(b, &hdev->blacklist, list) { + if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type) return b; + } return NULL; } @@ -1963,9 +2723,7 @@ int hci_blacklist_clear(struct hci_dev *hdev) struct list_head *p, *n; list_for_each_safe(p, n, &hdev->blacklist) { - struct bdaddr_list *b; - - b = list_entry(p, struct bdaddr_list, list); + struct bdaddr_list *b = list_entry(p, struct bdaddr_list, list); list_del(p); kfree(b); @@ -1978,10 +2736,10 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) { struct bdaddr_list *entry; - if (bacmp(bdaddr, BDADDR_ANY) == 0) + if (!bacmp(bdaddr, BDADDR_ANY)) return -EBADF; - if (hci_blacklist_lookup(hdev, bdaddr)) + if (hci_blacklist_lookup(hdev, bdaddr, type)) return -EEXIST; entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL); @@ -1989,6 +2747,7 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) return -ENOMEM; bacpy(&entry->bdaddr, bdaddr); + entry->bdaddr_type = type; list_add(&entry->list, &hdev->blacklist); @@ -1999,10 +2758,10 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) { struct bdaddr_list *entry; - if (bacmp(bdaddr, BDADDR_ANY) == 0) + if (!bacmp(bdaddr, BDADDR_ANY)) return hci_blacklist_clear(hdev); - entry = hci_blacklist_lookup(hdev, bdaddr); + entry = hci_blacklist_lookup(hdev, bdaddr, type); if (!entry) return -ENOENT; @@ -2100,13 +2859,19 @@ struct hci_dev *hci_alloc_dev(void) hdev->pkt_type = (HCI_DM1 | HCI_DH1 | HCI_HV1); hdev->esco_type = (ESCO_HV1); hdev->link_mode = (HCI_LM_ACCEPT); - hdev->io_capability = 0x03; /* No Input No Output */ + hdev->num_iac = 0x01; /* One IAC support is mandatory */ + hdev->io_capability = 0x03; /* No Input No Output */ hdev->inq_tx_power = HCI_TX_POWER_INVALID; hdev->adv_tx_power = HCI_TX_POWER_INVALID; hdev->sniff_max_interval = 800; hdev->sniff_min_interval = 80; + hdev->le_scan_interval = 0x0060; + hdev->le_scan_window = 0x0030; + hdev->le_conn_min_interval = 0x0028; + hdev->le_conn_max_interval = 0x0038; + mutex_init(&hdev->lock); mutex_init(&hdev->req_lock); @@ -2195,7 +2960,12 @@ int hci_register_dev(struct hci_dev *hdev) goto err; } - error = hci_add_sysfs(hdev); + if (!IS_ERR_OR_NULL(bt_debugfs)) + hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); + + dev_set_name(&hdev->dev, "%s", hdev->name); + + error = device_add(&hdev->dev); if (error < 0) goto err_wqueue; @@ -2209,10 +2979,18 @@ int hci_register_dev(struct hci_dev *hdev) } } + if (hdev->rfkill && rfkill_blocked(hdev->rfkill)) + set_bit(HCI_RFKILLED, &hdev->dev_flags); + set_bit(HCI_SETUP, &hdev->dev_flags); + set_bit(HCI_AUTO_OFF, &hdev->dev_flags); - if (hdev->dev_type != HCI_AMP) - set_bit(HCI_AUTO_OFF, &hdev->dev_flags); + if (hdev->dev_type == HCI_BREDR) { + /* Assume BR/EDR support until proven otherwise (such as + * through reading supported features during init. + */ + set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); + } write_lock(&hci_dev_list_lock); list_add(&hdev->list, &hci_dev_list); @@ -2275,7 +3053,9 @@ void hci_unregister_dev(struct hci_dev *hdev) rfkill_destroy(hdev->rfkill); } - hci_del_sysfs(hdev); + device_del(&hdev->dev); + + debugfs_remove_recursive(hdev->debugfs); destroy_workqueue(hdev->workqueue); destroy_workqueue(hdev->req_workqueue); @@ -2311,9 +3091,8 @@ int hci_resume_dev(struct hci_dev *hdev) EXPORT_SYMBOL(hci_resume_dev); /* Receive frame from HCI drivers */ -int hci_recv_frame(struct sk_buff *skb) +int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb) { - struct hci_dev *hdev = (struct hci_dev *) skb->dev; if (!hdev || (!test_bit(HCI_UP, &hdev->flags) && !test_bit(HCI_INIT, &hdev->flags))) { kfree_skb(skb); @@ -2372,7 +3151,6 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data, scb->expect = hlen; scb->pkt_type = type; - skb->dev = (void *) hdev; hdev->reassembly[index] = skb; } @@ -2432,7 +3210,7 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data, /* Complete frame */ bt_cb(skb)->pkt_type = type; - hci_recv_frame(skb); + hci_recv_frame(hdev, skb); hdev->reassembly[index] = NULL; return remain; @@ -2523,15 +3301,8 @@ int hci_unregister_cb(struct hci_cb *cb) } EXPORT_SYMBOL(hci_unregister_cb); -static int hci_send_frame(struct sk_buff *skb) +static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb) { - struct hci_dev *hdev = (struct hci_dev *) skb->dev; - - if (!hdev) { - kfree_skb(skb); - return -ENODEV; - } - BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len); /* Time stamp */ @@ -2548,7 +3319,8 @@ static int hci_send_frame(struct sk_buff *skb) /* Get rid of skb owner, prior to sending to the driver. */ skb_orphan(skb); - return hdev->send(skb); + if (hdev->send(hdev, skb) < 0) + BT_ERR("%s sending frame failed", hdev->name); } void hci_req_init(struct hci_request *req, struct hci_dev *hdev) @@ -2611,7 +3383,6 @@ static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, BT_DBG("skb len %d", skb->len); bt_cb(skb)->pkt_type = HCI_COMMAND_PKT; - skb->dev = (void *) hdev; return skb; } @@ -2755,7 +3526,6 @@ static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue, do { skb = list; list = list->next; - skb->dev = (void *) hdev; bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT; hci_add_acl_hdr(skb, conn->handle, flags); @@ -2774,8 +3544,6 @@ void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags) BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags); - skb->dev = (void *) hdev; - hci_queue_acl(chan, &chan->data_q, skb, flags); queue_work(hdev->workqueue, &hdev->tx_work); @@ -2796,7 +3564,6 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb) skb_reset_transport_header(skb); memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE); - skb->dev = (void *) hdev; bt_cb(skb)->pkt_type = HCI_SCODATA_PKT; skb_queue_tail(&conn->data_q, skb); @@ -3061,7 +3828,7 @@ static void hci_sched_acl_pkt(struct hci_dev *hdev) hci_conn_enter_active_mode(chan->conn, bt_cb(skb)->force_active); - hci_send_frame(skb); + hci_send_frame(hdev, skb); hdev->acl_last_tx = jiffies; hdev->acl_cnt--; @@ -3113,7 +3880,7 @@ static void hci_sched_acl_blk(struct hci_dev *hdev) hci_conn_enter_active_mode(chan->conn, bt_cb(skb)->force_active); - hci_send_frame(skb); + hci_send_frame(hdev, skb); hdev->acl_last_tx = jiffies; hdev->block_cnt -= blocks; @@ -3166,7 +3933,7 @@ static void hci_sched_sco(struct hci_dev *hdev) while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, "e))) { while (quote-- && (skb = skb_dequeue(&conn->data_q))) { BT_DBG("skb %p len %d", skb, skb->len); - hci_send_frame(skb); + hci_send_frame(hdev, skb); conn->sent++; if (conn->sent == ~0) @@ -3190,7 +3957,7 @@ static void hci_sched_esco(struct hci_dev *hdev) "e))) { while (quote-- && (skb = skb_dequeue(&conn->data_q))) { BT_DBG("skb %p len %d", skb, skb->len); - hci_send_frame(skb); + hci_send_frame(hdev, skb); conn->sent++; if (conn->sent == ~0) @@ -3232,7 +3999,7 @@ static void hci_sched_le(struct hci_dev *hdev) skb = skb_dequeue(&chan->data_q); - hci_send_frame(skb); + hci_send_frame(hdev, skb); hdev->le_last_tx = jiffies; cnt--; @@ -3258,19 +4025,17 @@ static void hci_tx_work(struct work_struct *work) BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt, hdev->sco_cnt, hdev->le_cnt); - /* Schedule queues and send stuff to HCI driver */ - - hci_sched_acl(hdev); - - hci_sched_sco(hdev); - - hci_sched_esco(hdev); - - hci_sched_le(hdev); + if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + /* Schedule queues and send stuff to HCI driver */ + hci_sched_acl(hdev); + hci_sched_sco(hdev); + hci_sched_esco(hdev); + hci_sched_le(hdev); + } /* Send next queued raw (unknown type) packet */ while ((skb = skb_dequeue(&hdev->raw_q))) - hci_send_frame(skb); + hci_send_frame(hdev, skb); } /* ----- HCI RX task (incoming data processing) ----- */ @@ -3457,7 +4222,8 @@ static void hci_rx_work(struct work_struct *work) hci_send_to_sock(hdev, skb); } - if (test_bit(HCI_RAW, &hdev->flags)) { + if (test_bit(HCI_RAW, &hdev->flags) || + test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { kfree_skb(skb); continue; } @@ -3512,10 +4278,10 @@ static void hci_cmd_work(struct work_struct *work) kfree_skb(hdev->sent_cmd); - hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC); + hdev->sent_cmd = skb_clone(skb, GFP_KERNEL); if (hdev->sent_cmd) { atomic_dec(&hdev->cmd_cnt); - hci_send_frame(skb); + hci_send_frame(hdev, skb); if (test_bit(HCI_RESET, &hdev->flags)) del_timer(&hdev->cmd_timer); else @@ -3527,15 +4293,3 @@ static void hci_cmd_work(struct work_struct *work) } } } - -u8 bdaddr_to_le(u8 bdaddr_type) -{ - switch (bdaddr_type) { - case BDADDR_LE_PUBLIC: - return ADDR_LE_DEV_PUBLIC; - - default: - /* Fallback to LE Random address type */ - return ADDR_LE_DEV_RANDOM; - } -} diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 94aab73f89d..5935f748c0f 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -29,8 +29,9 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include <net/bluetooth/mgmt.h> -#include <net/bluetooth/a2mp.h> -#include <net/bluetooth/amp.h> + +#include "a2mp.h" +#include "amp.h" /* Handle HCI Event packets */ @@ -194,6 +195,11 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb) memset(hdev->adv_data, 0, sizeof(hdev->adv_data)); hdev->adv_data_len = 0; + + memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data)); + hdev->scan_rsp_data_len = 0; + + hdev->ssp_debug_mode = 0; } static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb) @@ -297,6 +303,11 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb) goto done; } + /* We need to ensure that we set this back on if someone changed + * the scan mode through a raw HCI socket. + */ + set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); + old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags); old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags); @@ -304,11 +315,6 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb) set_bit(HCI_ISCAN, &hdev->flags); if (!old_iscan) mgmt_discoverable(hdev, 1); - if (hdev->discov_timeout > 0) { - int to = msecs_to_jiffies(hdev->discov_timeout * 1000); - queue_delayed_work(hdev->workqueue, &hdev->discov_off, - to); - } } else if (old_iscan) mgmt_discoverable(hdev, 0); @@ -412,6 +418,21 @@ static void hci_cc_write_voice_setting(struct hci_dev *hdev, hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING); } +static void hci_cc_read_num_supported_iac(struct hci_dev *hdev, + struct sk_buff *skb) +{ + struct hci_rp_read_num_supported_iac *rp = (void *) skb->data; + + BT_DBG("%s status 0x%2.2x", hdev->name, rp->status); + + if (rp->status) + return; + + hdev->num_iac = rp->num_iac; + + BT_DBG("%s num iac %d", hdev->name, hdev->num_iac); +} + static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb) { __u8 status = *((__u8 *) skb->data); @@ -449,14 +470,13 @@ static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb) if (rp->status) return; - hdev->hci_ver = rp->hci_ver; - hdev->hci_rev = __le16_to_cpu(rp->hci_rev); - hdev->lmp_ver = rp->lmp_ver; - hdev->manufacturer = __le16_to_cpu(rp->manufacturer); - hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver); - - BT_DBG("%s manufacturer 0x%4.4x hci ver %d:%d", hdev->name, - hdev->manufacturer, hdev->hci_ver, hdev->hci_rev); + if (test_bit(HCI_SETUP, &hdev->dev_flags)) { + hdev->hci_ver = rp->hci_ver; + hdev->hci_rev = __le16_to_cpu(rp->hci_rev); + hdev->lmp_ver = rp->lmp_ver; + hdev->manufacturer = __le16_to_cpu(rp->manufacturer); + hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver); + } } static void hci_cc_read_local_commands(struct hci_dev *hdev, @@ -536,7 +556,8 @@ static void hci_cc_read_local_ext_features(struct hci_dev *hdev, if (rp->status) return; - hdev->max_page = rp->max_page; + if (hdev->max_page < rp->max_page) + hdev->max_page = rp->max_page; if (rp->page < HCI_MAX_PAGES) memcpy(hdev->features[rp->page], rp->features, 8); @@ -913,17 +934,9 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb) if (!status) { if (*sent) - set_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags); + set_bit(HCI_ADVERTISING, &hdev->dev_flags); else - clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags); - } - - if (!test_bit(HCI_INIT, &hdev->flags)) { - struct hci_request req; - - hci_req_init(&req, hdev); - hci_update_ad(&req); - hci_req_run(&req, NULL); + clear_bit(HCI_ADVERTISING, &hdev->dev_flags); } hci_dev_unlock(hdev); @@ -994,20 +1007,20 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev, return; if (!status) { - if (sent->le) + if (sent->le) { hdev->features[1][0] |= LMP_HOST_LE; - else + set_bit(HCI_LE_ENABLED, &hdev->dev_flags); + } else { hdev->features[1][0] &= ~LMP_HOST_LE; + clear_bit(HCI_LE_ENABLED, &hdev->dev_flags); + clear_bit(HCI_ADVERTISING, &hdev->dev_flags); + } if (sent->simul) hdev->features[1][0] |= LMP_HOST_LE_BREDR; else hdev->features[1][0] &= ~LMP_HOST_LE_BREDR; } - - if (test_bit(HCI_MGMT, &hdev->dev_flags) && - !test_bit(HCI_INIT, &hdev->flags)) - mgmt_le_enable_complete(hdev, sent->le, status); } static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev, @@ -1291,9 +1304,11 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status) goto unlock; if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { - struct hci_cp_auth_requested cp; - cp.handle = __cpu_to_le16(conn->handle); - hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp); + struct hci_cp_auth_requested auth_cp; + + auth_cp.handle = __cpu_to_le16(conn->handle); + hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, + sizeof(auth_cp), &auth_cp); } unlock: @@ -1465,33 +1480,6 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status) hci_dev_unlock(hdev); } -static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status) -{ - struct hci_conn *conn; - - BT_DBG("%s status 0x%2.2x", hdev->name, status); - - if (status) { - hci_dev_lock(hdev); - - conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); - if (!conn) { - hci_dev_unlock(hdev); - return; - } - - BT_DBG("%s bdaddr %pMR conn %p", hdev->name, &conn->dst, conn); - - conn->state = BT_CLOSED; - mgmt_connect_failed(hdev, &conn->dst, conn->type, - conn->dst_type, status); - hci_proto_connect_cfm(conn, status); - hci_conn_del(conn); - - hci_dev_unlock(hdev); - } -} - static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status) { struct hci_cp_create_phy_link *cp; @@ -1706,7 +1694,7 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb) &flags); if ((mask & HCI_LM_ACCEPT) && - !hci_blacklist_lookup(hdev, &ev->bdaddr)) { + !hci_blacklist_lookup(hdev, &ev->bdaddr, BDADDR_BREDR)) { /* Connection accepted */ struct inquiry_entry *ie; struct hci_conn *conn; @@ -1821,10 +1809,25 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) } if (ev->status == 0) { - if (conn->type == ACL_LINK && conn->flush_key) + u8 type = conn->type; + + if (type == ACL_LINK && conn->flush_key) hci_remove_link_key(hdev, &conn->dst); hci_proto_disconn_cfm(conn, ev->reason); hci_conn_del(conn); + + /* Re-enable advertising if necessary, since it might + * have been disabled by the connection. From the + * HCI_LE_Set_Advertise_Enable command description in + * the core specification (v4.0): + * "The Controller shall continue advertising until the Host + * issues an LE_Set_Advertise_Enable command with + * Advertising_Enable set to 0x00 (Advertising is disabled) + * or until a connection is created or until the Advertising + * is timed out due to Directed Advertising." + */ + if (type == LE_LINK) + mgmt_reenable_advertising(hdev); } unlock: @@ -2139,6 +2142,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_cc_write_voice_setting(hdev, skb); break; + case HCI_OP_READ_NUM_SUPPORTED_IAC: + hci_cc_read_num_supported_iac(hdev, skb); + break; + case HCI_OP_WRITE_SSP_MODE: hci_cc_write_ssp_mode(hdev, skb); break; @@ -2342,10 +2349,6 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb) hci_cs_disconnect(hdev, ev->status); break; - case HCI_OP_LE_CREATE_CONN: - hci_cs_le_create_conn(hdev, ev->status); - break; - case HCI_OP_CREATE_PHY_LINK: hci_cs_create_phylink(hdev, ev->status); break; @@ -2548,7 +2551,6 @@ static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb) conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); if (conn) { conn->mode = ev->mode; - conn->interval = __le16_to_cpu(ev->interval); if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) { @@ -2930,6 +2932,23 @@ unlock: hci_dev_unlock(hdev); } +static inline size_t eir_get_length(u8 *eir, size_t eir_len) +{ + size_t parsed = 0; + + while (parsed < eir_len) { + u8 field_len = eir[0]; + + if (field_len == 0) + return parsed; + + parsed += field_len + 1; + eir += field_len + 1; + } + + return eir_len; +} + static void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb) { @@ -3170,7 +3189,8 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev, if (hdev->auto_accept_delay > 0) { int delay = msecs_to_jiffies(hdev->auto_accept_delay); - mod_timer(&conn->auto_accept_timer, jiffies + delay); + queue_delayed_work(conn->hdev->workqueue, + &conn->auto_accept_work, delay); goto unlock; } @@ -3485,6 +3505,17 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb) conn->dst_type = ev->bdaddr_type; + /* The advertising parameters for own address type + * define which source address and source address + * type this connections has. + */ + if (bacmp(&conn->src, BDADDR_ANY)) { + conn->src_type = ADDR_LE_DEV_PUBLIC; + } else { + bacpy(&conn->src, &hdev->static_addr); + conn->src_type = ADDR_LE_DEV_RANDOM; + } + if (ev->role == LE_CONN_ROLE_MASTER) { conn->out = true; conn->link_mode |= HCI_LM_MASTER; @@ -3557,7 +3588,11 @@ static void hci_le_ltk_request_evt(struct hci_dev *hdev, struct sk_buff *skb) cp.handle = cpu_to_le16(conn->handle); if (ltk->authenticated) - conn->sec_level = BT_SECURITY_HIGH; + conn->pending_sec_level = BT_SECURITY_HIGH; + else + conn->pending_sec_level = BT_SECURITY_MEDIUM; + + conn->enc_key_size = ltk->enc_size; hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp); @@ -3636,8 +3671,8 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb) skb_pull(skb, HCI_EVENT_HDR_SIZE); if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) { - struct hci_command_hdr *hdr = (void *) hdev->sent_cmd->data; - u16 opcode = __le16_to_cpu(hdr->opcode); + struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data; + u16 opcode = __le16_to_cpu(cmd_hdr->opcode); hci_req_cmd_complete(hdev, opcode, 0); } diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index 9bd7d959e38..71f0be17308 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -66,6 +66,46 @@ static struct bt_sock_list hci_sk_list = { .lock = __RW_LOCK_UNLOCKED(hci_sk_list.lock) }; +static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb) +{ + struct hci_filter *flt; + int flt_type, flt_event; + + /* Apply filter */ + flt = &hci_pi(sk)->filter; + + if (bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) + flt_type = 0; + else + flt_type = bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS; + + if (!test_bit(flt_type, &flt->type_mask)) + return true; + + /* Extra filter for event packets only */ + if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT) + return false; + + flt_event = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS); + + if (!hci_test_bit(flt_event, &flt->event_mask)) + return true; + + /* Check filter only when opcode is set */ + if (!flt->opcode) + return false; + + if (flt_event == HCI_EV_CMD_COMPLETE && + flt->opcode != get_unaligned((__le16 *)(skb->data + 3))) + return true; + + if (flt_event == HCI_EV_CMD_STATUS && + flt->opcode != get_unaligned((__le16 *)(skb->data + 4))) + return true; + + return false; +} + /* Send frame to RAW socket */ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) { @@ -77,7 +117,6 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) read_lock(&hci_sk_list.lock); sk_for_each(sk, &hci_sk_list.head) { - struct hci_filter *flt; struct sk_buff *nskb; if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev) @@ -87,31 +126,19 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) if (skb->sk == sk) continue; - if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) - continue; - - /* Apply filter */ - flt = &hci_pi(sk)->filter; - - if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ? - 0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS), - &flt->type_mask)) - continue; - - if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) { - int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS); - - if (!hci_test_bit(evt, &flt->event_mask)) + if (hci_pi(sk)->channel == HCI_CHANNEL_RAW) { + if (is_filtered_packet(sk, skb)) continue; - - if (flt->opcode && - ((evt == HCI_EV_CMD_COMPLETE && - flt->opcode != - get_unaligned((__le16 *)(skb->data + 3))) || - (evt == HCI_EV_CMD_STATUS && - flt->opcode != - get_unaligned((__le16 *)(skb->data + 4))))) + } else if (hci_pi(sk)->channel == HCI_CHANNEL_USER) { + if (!bt_cb(skb)->incoming) + continue; + if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT && + bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT && + bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) continue; + } else { + /* Don't send frame to other channel types */ + continue; } if (!skb_copy) { @@ -360,7 +387,6 @@ static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data) __net_timestamp(skb); bt_cb(skb)->pkt_type = HCI_EVENT_PKT; - skb->dev = (void *) hdev; hci_send_to_sock(hdev, skb); kfree_skb(skb); } @@ -426,6 +452,12 @@ static int hci_sock_release(struct socket *sock) bt_sock_unlink(&hci_sk_list, sk); if (hdev) { + if (hci_pi(sk)->channel == HCI_CHANNEL_USER) { + mgmt_index_added(hdev); + clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags); + hci_dev_close(hdev->id); + } + atomic_dec(&hdev->promisc); hci_dev_put(hdev); } @@ -449,7 +481,7 @@ static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg) hci_dev_lock(hdev); - err = hci_blacklist_add(hdev, &bdaddr, 0); + err = hci_blacklist_add(hdev, &bdaddr, BDADDR_BREDR); hci_dev_unlock(hdev); @@ -466,7 +498,7 @@ static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg) hci_dev_lock(hdev); - err = hci_blacklist_del(hdev, &bdaddr, 0); + err = hci_blacklist_del(hdev, &bdaddr, BDADDR_BREDR); hci_dev_unlock(hdev); @@ -482,6 +514,12 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, if (!hdev) return -EBADFD; + if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) + return -EBUSY; + + if (hdev->dev_type != HCI_BREDR) + return -EOPNOTSUPP; + switch (cmd) { case HCISETRAW: if (!capable(CAP_NET_ADMIN)) @@ -512,23 +550,29 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, if (!capable(CAP_NET_ADMIN)) return -EPERM; return hci_sock_blacklist_del(hdev, (void __user *) arg); - - default: - if (hdev->ioctl) - return hdev->ioctl(hdev, cmd, arg); - return -EINVAL; } + + return -ENOIOCTLCMD; } static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) { - struct sock *sk = sock->sk; void __user *argp = (void __user *) arg; + struct sock *sk = sock->sk; int err; BT_DBG("cmd %x arg %lx", cmd, arg); + lock_sock(sk); + + if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { + err = -EBADFD; + goto done; + } + + release_sock(sk); + switch (cmd) { case HCIGETDEVLIST: return hci_get_dev_list(argp); @@ -573,13 +617,15 @@ static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, case HCIINQUIRY: return hci_inquiry(argp); - - default: - lock_sock(sk); - err = hci_sock_bound_ioctl(sk, cmd, arg); - release_sock(sk); - return err; } + + lock_sock(sk); + + err = hci_sock_bound_ioctl(sk, cmd, arg); + +done: + release_sock(sk); + return err; } static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, @@ -629,6 +675,56 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, hci_pi(sk)->hdev = hdev; break; + case HCI_CHANNEL_USER: + if (hci_pi(sk)->hdev) { + err = -EALREADY; + goto done; + } + + if (haddr.hci_dev == HCI_DEV_NONE) { + err = -EINVAL; + goto done; + } + + if (!capable(CAP_NET_ADMIN)) { + err = -EPERM; + goto done; + } + + hdev = hci_dev_get(haddr.hci_dev); + if (!hdev) { + err = -ENODEV; + goto done; + } + + if (test_bit(HCI_UP, &hdev->flags) || + test_bit(HCI_INIT, &hdev->flags) || + test_bit(HCI_SETUP, &hdev->dev_flags)) { + err = -EBUSY; + hci_dev_put(hdev); + goto done; + } + + if (test_and_set_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + err = -EUSERS; + hci_dev_put(hdev); + goto done; + } + + mgmt_index_removed(hdev); + + err = hci_dev_open(hdev->id); + if (err) { + clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags); + hci_dev_put(hdev); + goto done; + } + + atomic_inc(&hdev->promisc); + + hci_pi(sk)->hdev = hdev; + break; + case HCI_CHANNEL_CONTROL: if (haddr.hci_dev != HCI_DEV_NONE) { err = -EINVAL; @@ -677,22 +773,30 @@ static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, { struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr; struct sock *sk = sock->sk; - struct hci_dev *hdev = hci_pi(sk)->hdev; + struct hci_dev *hdev; + int err = 0; BT_DBG("sock %p sk %p", sock, sk); - if (!hdev) - return -EBADFD; + if (peer) + return -EOPNOTSUPP; lock_sock(sk); + hdev = hci_pi(sk)->hdev; + if (!hdev) { + err = -EBADFD; + goto done; + } + *addr_len = sizeof(*haddr); haddr->hci_family = AF_BLUETOOTH; haddr->hci_dev = hdev->id; - haddr->hci_channel= 0; + haddr->hci_channel= hci_pi(sk)->channel; +done: release_sock(sk); - return 0; + return err; } static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, @@ -767,6 +871,7 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, case HCI_CHANNEL_RAW: hci_sock_cmsg(sk, msg, skb); break; + case HCI_CHANNEL_USER: case HCI_CHANNEL_CONTROL: case HCI_CHANNEL_MONITOR: sock_recv_timestamp(msg, sk, skb); @@ -801,6 +906,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, switch (hci_pi(sk)->channel) { case HCI_CHANNEL_RAW: + case HCI_CHANNEL_USER: break; case HCI_CHANNEL_CONTROL: err = mgmt_control(sk, msg, len); @@ -835,9 +941,9 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, bt_cb(skb)->pkt_type = *((unsigned char *) skb->data); skb_pull(skb, 1); - skb->dev = (void *) hdev; - if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { + if (hci_pi(sk)->channel == HCI_CHANNEL_RAW && + bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { u16 opcode = get_unaligned_le16(skb->data); u16 ogf = hci_opcode_ogf(opcode); u16 ocf = hci_opcode_ocf(opcode); @@ -868,6 +974,14 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, goto drop; } + if (hci_pi(sk)->channel == HCI_CHANNEL_USER && + bt_cb(skb)->pkt_type != HCI_COMMAND_PKT && + bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT && + bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) { + err = -EINVAL; + goto drop; + } + skb_queue_tail(&hdev->raw_q, skb); queue_work(hdev->workqueue, &hdev->tx_work); } @@ -895,7 +1009,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, lock_sock(sk); if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { - err = -EINVAL; + err = -EBADFD; goto done; } @@ -981,7 +1095,7 @@ static int hci_sock_getsockopt(struct socket *sock, int level, int optname, lock_sock(sk); if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { - err = -EINVAL; + err = -EBADFD; goto done; } diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c index edf623a2904..0b61250cfdf 100644 --- a/net/bluetooth/hci_sysfs.c +++ b/net/bluetooth/hci_sysfs.c @@ -1,17 +1,12 @@ /* Bluetooth HCI driver model support. */ -#include <linux/debugfs.h> #include <linux/module.h> -#include <asm/unaligned.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> static struct class *bt_class; -struct dentry *bt_debugfs; -EXPORT_SYMBOL_GPL(bt_debugfs); - static inline char *link_typetostr(int type) { switch (type) { @@ -42,29 +37,15 @@ static ssize_t show_link_address(struct device *dev, return sprintf(buf, "%pMR\n", &conn->dst); } -static ssize_t show_link_features(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_conn *conn = to_hci_conn(dev); - - return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", - conn->features[0][0], conn->features[0][1], - conn->features[0][2], conn->features[0][3], - conn->features[0][4], conn->features[0][5], - conn->features[0][6], conn->features[0][7]); -} - #define LINK_ATTR(_name, _mode, _show, _store) \ struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store) static LINK_ATTR(type, S_IRUGO, show_link_type, NULL); static LINK_ATTR(address, S_IRUGO, show_link_address, NULL); -static LINK_ATTR(features, S_IRUGO, show_link_features, NULL); static struct attribute *bt_link_attrs[] = { &link_attr_type.attr, &link_attr_address.attr, - &link_attr_features.attr, NULL }; @@ -150,28 +131,6 @@ void hci_conn_del_sysfs(struct hci_conn *conn) hci_dev_put(hdev); } -static inline char *host_bustostr(int bus) -{ - switch (bus) { - case HCI_VIRTUAL: - return "VIRTUAL"; - case HCI_USB: - return "USB"; - case HCI_PCCARD: - return "PCCARD"; - case HCI_UART: - return "UART"; - case HCI_RS232: - return "RS232"; - case HCI_PCI: - return "PCI"; - case HCI_SDIO: - return "SDIO"; - default: - return "UNKNOWN"; - } -} - static inline char *host_typetostr(int type) { switch (type) { @@ -184,13 +143,6 @@ static inline char *host_typetostr(int type) } } -static ssize_t show_bus(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%s\n", host_bustostr(hdev->bus)); -} - static ssize_t show_type(struct device *dev, struct device_attribute *attr, char *buf) { @@ -212,14 +164,6 @@ static ssize_t show_name(struct device *dev, return sprintf(buf, "%s\n", name); } -static ssize_t show_class(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "0x%.2x%.2x%.2x\n", hdev->dev_class[2], - hdev->dev_class[1], hdev->dev_class[0]); -} - static ssize_t show_address(struct device *dev, struct device_attribute *attr, char *buf) { @@ -227,150 +171,14 @@ static ssize_t show_address(struct device *dev, return sprintf(buf, "%pMR\n", &hdev->bdaddr); } -static ssize_t show_features(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - - return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n", - hdev->features[0][0], hdev->features[0][1], - hdev->features[0][2], hdev->features[0][3], - hdev->features[0][4], hdev->features[0][5], - hdev->features[0][6], hdev->features[0][7]); -} - -static ssize_t show_manufacturer(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->manufacturer); -} - -static ssize_t show_hci_version(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->hci_ver); -} - -static ssize_t show_hci_revision(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->hci_rev); -} - -static ssize_t show_idle_timeout(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->idle_timeout); -} - -static ssize_t store_idle_timeout(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hci_dev *hdev = to_hci_dev(dev); - unsigned int val; - int rv; - - rv = kstrtouint(buf, 0, &val); - if (rv < 0) - return rv; - - if (val != 0 && (val < 500 || val > 3600000)) - return -EINVAL; - - hdev->idle_timeout = val; - - return count; -} - -static ssize_t show_sniff_max_interval(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->sniff_max_interval); -} - -static ssize_t store_sniff_max_interval(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hci_dev *hdev = to_hci_dev(dev); - u16 val; - int rv; - - rv = kstrtou16(buf, 0, &val); - if (rv < 0) - return rv; - - if (val == 0 || val % 2 || val < hdev->sniff_min_interval) - return -EINVAL; - - hdev->sniff_max_interval = val; - - return count; -} - -static ssize_t show_sniff_min_interval(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct hci_dev *hdev = to_hci_dev(dev); - return sprintf(buf, "%d\n", hdev->sniff_min_interval); -} - -static ssize_t store_sniff_min_interval(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct hci_dev *hdev = to_hci_dev(dev); - u16 val; - int rv; - - rv = kstrtou16(buf, 0, &val); - if (rv < 0) - return rv; - - if (val == 0 || val % 2 || val > hdev->sniff_max_interval) - return -EINVAL; - - hdev->sniff_min_interval = val; - - return count; -} - -static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL); static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); -static DEVICE_ATTR(class, S_IRUGO, show_class, NULL); static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); -static DEVICE_ATTR(features, S_IRUGO, show_features, NULL); -static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL); -static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL); -static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL); - -static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR, - show_idle_timeout, store_idle_timeout); -static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR, - show_sniff_max_interval, store_sniff_max_interval); -static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR, - show_sniff_min_interval, store_sniff_min_interval); static struct attribute *bt_host_attrs[] = { - &dev_attr_bus.attr, &dev_attr_type.attr, &dev_attr_name.attr, - &dev_attr_class.attr, &dev_attr_address.attr, - &dev_attr_features.attr, - &dev_attr_manufacturer.attr, - &dev_attr_hci_version.attr, - &dev_attr_hci_revision.attr, - &dev_attr_idle_timeout.attr, - &dev_attr_sniff_max_interval.attr, - &dev_attr_sniff_min_interval.attr, NULL }; @@ -396,141 +204,6 @@ static struct device_type bt_host = { .release = bt_host_release, }; -static int inquiry_cache_show(struct seq_file *f, void *p) -{ - struct hci_dev *hdev = f->private; - struct discovery_state *cache = &hdev->discovery; - struct inquiry_entry *e; - - hci_dev_lock(hdev); - - list_for_each_entry(e, &cache->all, all) { - struct inquiry_data *data = &e->data; - seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n", - &data->bdaddr, - data->pscan_rep_mode, data->pscan_period_mode, - data->pscan_mode, data->dev_class[2], - data->dev_class[1], data->dev_class[0], - __le16_to_cpu(data->clock_offset), - data->rssi, data->ssp_mode, e->timestamp); - } - - hci_dev_unlock(hdev); - - return 0; -} - -static int inquiry_cache_open(struct inode *inode, struct file *file) -{ - return single_open(file, inquiry_cache_show, inode->i_private); -} - -static const struct file_operations inquiry_cache_fops = { - .open = inquiry_cache_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int blacklist_show(struct seq_file *f, void *p) -{ - struct hci_dev *hdev = f->private; - struct bdaddr_list *b; - - hci_dev_lock(hdev); - - list_for_each_entry(b, &hdev->blacklist, list) - seq_printf(f, "%pMR\n", &b->bdaddr); - - hci_dev_unlock(hdev); - - return 0; -} - -static int blacklist_open(struct inode *inode, struct file *file) -{ - return single_open(file, blacklist_show, inode->i_private); -} - -static const struct file_operations blacklist_fops = { - .open = blacklist_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static void print_bt_uuid(struct seq_file *f, u8 *uuid) -{ - u32 data0, data5; - u16 data1, data2, data3, data4; - - data5 = get_unaligned_le32(uuid); - data4 = get_unaligned_le16(uuid + 4); - data3 = get_unaligned_le16(uuid + 6); - data2 = get_unaligned_le16(uuid + 8); - data1 = get_unaligned_le16(uuid + 10); - data0 = get_unaligned_le32(uuid + 12); - - seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.4x%.8x\n", - data0, data1, data2, data3, data4, data5); -} - -static int uuids_show(struct seq_file *f, void *p) -{ - struct hci_dev *hdev = f->private; - struct bt_uuid *uuid; - - hci_dev_lock(hdev); - - list_for_each_entry(uuid, &hdev->uuids, list) - print_bt_uuid(f, uuid->uuid); - - hci_dev_unlock(hdev); - - return 0; -} - -static int uuids_open(struct inode *inode, struct file *file) -{ - return single_open(file, uuids_show, inode->i_private); -} - -static const struct file_operations uuids_fops = { - .open = uuids_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int auto_accept_delay_set(void *data, u64 val) -{ - struct hci_dev *hdev = data; - - hci_dev_lock(hdev); - - hdev->auto_accept_delay = val; - - hci_dev_unlock(hdev); - - return 0; -} - -static int auto_accept_delay_get(void *data, u64 *val) -{ - struct hci_dev *hdev = data; - - hci_dev_lock(hdev); - - *val = hdev->auto_accept_delay; - - hci_dev_unlock(hdev); - - return 0; -} - -DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get, - auto_accept_delay_set, "%llu\n"); - void hci_init_sysfs(struct hci_dev *hdev) { struct device *dev = &hdev->dev; @@ -542,52 +215,8 @@ void hci_init_sysfs(struct hci_dev *hdev) device_initialize(dev); } -int hci_add_sysfs(struct hci_dev *hdev) -{ - struct device *dev = &hdev->dev; - int err; - - BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); - - dev_set_name(dev, "%s", hdev->name); - - err = device_add(dev); - if (err < 0) - return err; - - if (!bt_debugfs) - return 0; - - hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs); - if (!hdev->debugfs) - return 0; - - debugfs_create_file("inquiry_cache", 0444, hdev->debugfs, - hdev, &inquiry_cache_fops); - - debugfs_create_file("blacklist", 0444, hdev->debugfs, - hdev, &blacklist_fops); - - debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops); - - debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev, - &auto_accept_delay_fops); - return 0; -} - -void hci_del_sysfs(struct hci_dev *hdev) -{ - BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus); - - debugfs_remove_recursive(hdev->debugfs); - - device_del(&hdev->dev); -} - int __init bt_sysfs_init(void) { - bt_debugfs = debugfs_create_dir("bluetooth", NULL); - bt_class = class_create(THIS_MODULE, "bluetooth"); return PTR_ERR_OR_ZERO(bt_class); @@ -596,6 +225,4 @@ int __init bt_sysfs_init(void) void bt_sysfs_cleanup(void) { class_destroy(bt_class); - - debugfs_remove_recursive(bt_debugfs); } diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index bdc35a7a7fe..292e619db89 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -767,10 +767,10 @@ static int hidp_setup_hid(struct hidp_session *session, strncpy(hid->name, req->name, sizeof(req->name) - 1); snprintf(hid->phys, sizeof(hid->phys), "%pMR", - &bt_sk(session->ctrl_sock->sk)->src); + &l2cap_pi(session->ctrl_sock->sk)->chan->src); snprintf(hid->uniq, sizeof(hid->uniq), "%pMR", - &bt_sk(session->ctrl_sock->sk)->dst); + &l2cap_pi(session->ctrl_sock->sk)->chan->dst); hid->dev.parent = &session->conn->hcon->dev; hid->ll_driver = &hidp_hid_driver; @@ -1283,23 +1283,29 @@ static int hidp_session_thread(void *arg) static int hidp_verify_sockets(struct socket *ctrl_sock, struct socket *intr_sock) { + struct l2cap_chan *ctrl_chan, *intr_chan; struct bt_sock *ctrl, *intr; struct hidp_session *session; if (!l2cap_is_socket(ctrl_sock) || !l2cap_is_socket(intr_sock)) return -EINVAL; + ctrl_chan = l2cap_pi(ctrl_sock->sk)->chan; + intr_chan = l2cap_pi(intr_sock->sk)->chan; + + if (bacmp(&ctrl_chan->src, &intr_chan->src) || + bacmp(&ctrl_chan->dst, &intr_chan->dst)) + return -ENOTUNIQ; + ctrl = bt_sk(ctrl_sock->sk); intr = bt_sk(intr_sock->sk); - if (bacmp(&ctrl->src, &intr->src) || bacmp(&ctrl->dst, &intr->dst)) - return -ENOTUNIQ; if (ctrl->sk.sk_state != BT_CONNECTED || intr->sk.sk_state != BT_CONNECTED) return -EBADFD; /* early session check, we check again during session registration */ - session = hidp_session_find(&ctrl->dst); + session = hidp_session_find(&ctrl_chan->dst); if (session) { hidp_session_put(session); return -EEXIST; @@ -1332,7 +1338,7 @@ int hidp_connection_add(struct hidp_connadd_req *req, if (!conn) return -EBADFD; - ret = hidp_session_new(&session, &bt_sk(ctrl_sock->sk)->dst, ctrl_sock, + ret = hidp_session_new(&session, &chan->dst, ctrl_sock, intr_sock, req, conn); if (ret) goto out_conn; diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h index 9e6cc355310..ab5241400cf 100644 --- a/net/bluetooth/hidp/hidp.h +++ b/net/bluetooth/hidp/hidp.h @@ -182,7 +182,7 @@ struct hidp_session { }; /* HIDP init defines */ -extern int __init hidp_init_sockets(void); -extern void __exit hidp_cleanup_sockets(void); +int __init hidp_init_sockets(void); +void __exit hidp_cleanup_sockets(void); #endif /* __HIDP_H */ diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index b3bb7bca8e6..0cef6770783 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -36,14 +36,15 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include <net/bluetooth/l2cap.h> -#include <net/bluetooth/smp.h> -#include <net/bluetooth/a2mp.h> -#include <net/bluetooth/amp.h> + +#include "smp.h" +#include "a2mp.h" +#include "amp.h" bool disable_ertm; -static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN; -static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP, }; +static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN | L2CAP_FEAT_UCD; +static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP | L2CAP_FC_CONNLESS, }; static LIST_HEAD(chan_list); static DEFINE_RWLOCK(chan_list_lock); @@ -58,6 +59,18 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err); static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control, struct sk_buff_head *skbs, u8 event); +static inline __u8 bdaddr_type(struct hci_conn *hcon, __u8 type) +{ + if (hcon->type == LE_LINK) { + if (type == ADDR_LE_DEV_PUBLIC) + return BDADDR_LE_PUBLIC; + else + return BDADDR_LE_RANDOM; + } + + return BDADDR_BREDR; +} + /* ---- L2CAP channels ---- */ static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn, @@ -148,7 +161,7 @@ static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src) struct l2cap_chan *c; list_for_each_entry(c, &chan_list, global_l) { - if (c->sport == psm && !bacmp(&bt_sk(c->sk)->src, src)) + if (c->sport == psm && !bacmp(&c->src, src)) return c; } return NULL; @@ -210,38 +223,25 @@ static u16 l2cap_alloc_cid(struct l2cap_conn *conn) return 0; } -static void __l2cap_state_change(struct l2cap_chan *chan, int state) +static void l2cap_state_change(struct l2cap_chan *chan, int state) { BT_DBG("chan %p %s -> %s", chan, state_to_string(chan->state), state_to_string(state)); chan->state = state; - chan->ops->state_change(chan, state); -} - -static void l2cap_state_change(struct l2cap_chan *chan, int state) -{ - struct sock *sk = chan->sk; - - lock_sock(sk); - __l2cap_state_change(chan, state); - release_sock(sk); + chan->ops->state_change(chan, state, 0); } -static inline void __l2cap_chan_set_err(struct l2cap_chan *chan, int err) +static inline void l2cap_state_change_and_error(struct l2cap_chan *chan, + int state, int err) { - struct sock *sk = chan->sk; - - sk->sk_err = err; + chan->state = state; + chan->ops->state_change(chan, chan->state, err); } static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err) { - struct sock *sk = chan->sk; - - lock_sock(sk); - __l2cap_chan_set_err(chan, err); - release_sock(sk); + chan->ops->state_change(chan, chan->state, err); } static void __set_retrans_timer(struct l2cap_chan *chan) @@ -620,10 +620,8 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err) void l2cap_chan_close(struct l2cap_chan *chan, int reason) { struct l2cap_conn *conn = chan->conn; - struct sock *sk = chan->sk; - BT_DBG("chan %p state %s sk %p", chan, state_to_string(chan->state), - sk); + BT_DBG("chan %p state %s", chan, state_to_string(chan->state)); switch (chan->state) { case BT_LISTEN: @@ -634,7 +632,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason) case BT_CONFIG: if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED && conn->hcon->type == ACL_LINK) { - __set_chan_timer(chan, sk->sk_sndtimeo); + __set_chan_timer(chan, chan->ops->get_sndtimeo(chan)); l2cap_send_disconn_req(chan, reason); } else l2cap_chan_del(chan, reason); @@ -646,10 +644,11 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason) struct l2cap_conn_rsp rsp; __u16 result; - if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) + if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) result = L2CAP_CR_SEC_BLOCK; else result = L2CAP_CR_BAD_PSM; + l2cap_state_change(chan, BT_DISCONN); rsp.scid = cpu_to_le16(chan->dcid); @@ -676,7 +675,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason) static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan) { - if (chan->chan_type == L2CAP_CHAN_RAW) { + switch (chan->chan_type) { + case L2CAP_CHAN_RAW: switch (chan->sec_level) { case BT_SECURITY_HIGH: return HCI_AT_DEDICATED_BONDING_MITM; @@ -685,15 +685,29 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan) default: return HCI_AT_NO_BONDING; } - } else if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) { - if (chan->sec_level == BT_SECURITY_LOW) - chan->sec_level = BT_SECURITY_SDP; - + break; + case L2CAP_CHAN_CONN_LESS: + if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_3DSP)) { + if (chan->sec_level == BT_SECURITY_LOW) + chan->sec_level = BT_SECURITY_SDP; + } if (chan->sec_level == BT_SECURITY_HIGH) return HCI_AT_NO_BONDING_MITM; else return HCI_AT_NO_BONDING; - } else { + break; + case L2CAP_CHAN_CONN_ORIENTED: + if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) { + if (chan->sec_level == BT_SECURITY_LOW) + chan->sec_level = BT_SECURITY_SDP; + + if (chan->sec_level == BT_SECURITY_HIGH) + return HCI_AT_NO_BONDING_MITM; + else + return HCI_AT_NO_BONDING; + } + /* fall through */ + default: switch (chan->sec_level) { case BT_SECURITY_HIGH: return HCI_AT_GENERAL_BONDING_MITM; @@ -702,6 +716,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan) default: return HCI_AT_NO_BONDING; } + break; } } @@ -1015,14 +1030,29 @@ static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan) static bool __amp_capable(struct l2cap_chan *chan) { struct l2cap_conn *conn = chan->conn; + struct hci_dev *hdev; + bool amp_available = false; - if (enable_hs && - hci_amp_capable() && - chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED && - conn->fixed_chan_mask & L2CAP_FC_A2MP) - return true; - else + if (!conn->hs_enabled) return false; + + if (!(conn->fixed_chan_mask & L2CAP_FC_A2MP)) + return false; + + read_lock(&hci_dev_list_lock); + list_for_each_entry(hdev, &hci_dev_list, list) { + if (hdev->amp_type != AMP_TYPE_BREDR && + test_bit(HCI_UP, &hdev->flags)) { + amp_available = true; + break; + } + } + read_unlock(&hci_dev_list_lock); + + if (chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED) + return amp_available; + + return false; } static bool l2cap_check_efs(struct l2cap_chan *chan) @@ -1186,7 +1216,6 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask) static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err) { - struct sock *sk = chan->sk; struct l2cap_conn *conn = chan->conn; struct l2cap_disconn_req req; @@ -1209,10 +1238,7 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err) l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_DISCONN_REQ, sizeof(req), &req); - lock_sock(sk); - __l2cap_state_change(chan, BT_DISCONN); - __l2cap_chan_set_err(chan, err); - release_sock(sk); + l2cap_state_change_and_error(chan, BT_DISCONN, err); } /* ---- L2CAP connections ---- */ @@ -1225,8 +1251,6 @@ static void l2cap_conn_start(struct l2cap_conn *conn) mutex_lock(&conn->chan_lock); list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) { - struct sock *sk = chan->sk; - l2cap_chan_lock(chan); if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) { @@ -1258,19 +1282,16 @@ static void l2cap_conn_start(struct l2cap_conn *conn) rsp.dcid = cpu_to_le16(chan->scid); if (l2cap_chan_check_security(chan)) { - lock_sock(sk); - if (test_bit(BT_SK_DEFER_SETUP, - &bt_sk(sk)->flags)) { + if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) { rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND); rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND); chan->ops->defer(chan); } else { - __l2cap_state_change(chan, BT_CONFIG); + l2cap_state_change(chan, BT_CONFIG); rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS); rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO); } - release_sock(sk); } else { rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND); rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHEN_PEND); @@ -1309,8 +1330,6 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid, read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - if (state && c->state != state) continue; @@ -1319,16 +1338,16 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid, int src_any, dst_any; /* Exact match. */ - src_match = !bacmp(&bt_sk(sk)->src, src); - dst_match = !bacmp(&bt_sk(sk)->dst, dst); + src_match = !bacmp(&c->src, src); + dst_match = !bacmp(&c->dst, dst); if (src_match && dst_match) { read_unlock(&chan_list_lock); return c; } /* Closest match */ - src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY); - dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY); + src_any = !bacmp(&c->src, BDADDR_ANY); + dst_any = !bacmp(&c->dst, BDADDR_ANY); if ((src_match && dst_any) || (src_any && dst_match) || (src_any && dst_any)) c1 = c; @@ -1342,14 +1361,15 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid, static void l2cap_le_conn_ready(struct l2cap_conn *conn) { - struct sock *parent; + struct hci_conn *hcon = conn->hcon; struct l2cap_chan *chan, *pchan; + u8 dst_type; BT_DBG(""); /* Check if we have socket listening on cid */ pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT, - conn->src, conn->dst); + &hcon->src, &hcon->dst); if (!pchan) return; @@ -1357,9 +1377,13 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) if (__l2cap_get_chan_by_dcid(conn, L2CAP_CID_ATT)) return; - parent = pchan->sk; + dst_type = bdaddr_type(hcon, hcon->dst_type); + + /* If device is blocked, do not create a channel for it */ + if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, dst_type)) + return; - lock_sock(parent); + l2cap_chan_lock(pchan); chan = pchan->ops->new_connection(pchan); if (!chan) @@ -1367,13 +1391,15 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn) chan->dcid = L2CAP_CID_ATT; - bacpy(&bt_sk(chan->sk)->src, conn->src); - bacpy(&bt_sk(chan->sk)->dst, conn->dst); + bacpy(&chan->src, &hcon->src); + bacpy(&chan->dst, &hcon->dst); + chan->src_type = bdaddr_type(hcon, hcon->src_type); + chan->dst_type = dst_type; __l2cap_chan_add(conn, chan); clean: - release_sock(parent); + l2cap_chan_unlock(pchan); } static void l2cap_conn_ready(struct l2cap_conn *conn) @@ -1408,12 +1434,7 @@ static void l2cap_conn_ready(struct l2cap_conn *conn) l2cap_chan_ready(chan); } else if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) { - struct sock *sk = chan->sk; - __clear_chan_timer(chan); - lock_sock(sk); - __l2cap_state_change(chan, BT_CONNECTED); - sk->sk_state_change(sk); - release_sock(sk); + l2cap_chan_ready(chan); } else if (chan->state == BT_CONNECT) { l2cap_do_start(chan); @@ -1633,11 +1654,12 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon) break; } - conn->src = &hcon->hdev->bdaddr; - conn->dst = &hcon->dst; - conn->feat_mask = 0; + if (hcon->type == ACL_LINK) + conn->hs_enabled = test_bit(HCI_HS_ENABLED, + &hcon->hdev->dev_flags); + spin_lock_init(&conn->lock); mutex_init(&conn->chan_lock); @@ -1688,8 +1710,6 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - if (state && c->state != state) continue; @@ -1698,16 +1718,16 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, int src_any, dst_any; /* Exact match. */ - src_match = !bacmp(&bt_sk(sk)->src, src); - dst_match = !bacmp(&bt_sk(sk)->dst, dst); + src_match = !bacmp(&c->src, src); + dst_match = !bacmp(&c->dst, dst); if (src_match && dst_match) { read_unlock(&chan_list_lock); return c; } /* Closest match */ - src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY); - dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY); + src_any = !bacmp(&c->src, BDADDR_ANY); + dst_any = !bacmp(&c->dst, BDADDR_ANY); if ((src_match && dst_any) || (src_any && dst_match) || (src_any && dst_any)) c1 = c; @@ -1722,18 +1742,16 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, bdaddr_t *dst, u8 dst_type) { - struct sock *sk = chan->sk; - bdaddr_t *src = &bt_sk(sk)->src; struct l2cap_conn *conn; struct hci_conn *hcon; struct hci_dev *hdev; __u8 auth_type; int err; - BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", src, dst, + BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &chan->src, dst, dst_type, __le16_to_cpu(psm)); - hdev = hci_get_route(dst, src); + hdev = hci_get_route(dst, &chan->src); if (!hdev) return -EHOSTUNREACH; @@ -1790,9 +1808,8 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, } /* Set destination address and psm */ - lock_sock(sk); - bacpy(&bt_sk(sk)->dst, dst); - release_sock(sk); + bacpy(&chan->dst, dst); + chan->dst_type = dst_type; chan->psm = psm; chan->dcid = cid; @@ -1825,7 +1842,8 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, } /* Update source addr of the socket */ - bacpy(src, conn->src); + bacpy(&chan->src, &hcon->src); + chan->src_type = bdaddr_type(hcon, hcon->src_type); l2cap_chan_unlock(chan); l2cap_chan_add(conn, chan); @@ -1835,7 +1853,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid, hci_conn_drop(hcon); l2cap_state_change(chan, BT_CONNECT); - __set_chan_timer(chan, sk->sk_sndtimeo); + __set_chan_timer(chan, chan->ops->get_sndtimeo(chan)); if (hcon->state == BT_CONNECTED) { if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) { @@ -1855,38 +1873,6 @@ done: return err; } -int __l2cap_wait_ack(struct sock *sk) -{ - struct l2cap_chan *chan = l2cap_pi(sk)->chan; - DECLARE_WAITQUEUE(wait, current); - int err = 0; - int timeo = HZ/5; - - add_wait_queue(sk_sleep(sk), &wait); - set_current_state(TASK_INTERRUPTIBLE); - while (chan->unacked_frames > 0 && chan->conn) { - if (!timeo) - timeo = HZ/5; - - if (signal_pending(current)) { - err = sock_intr_errno(timeo); - break; - } - - release_sock(sk); - timeo = schedule_timeout(timeo); - lock_sock(sk); - set_current_state(TASK_INTERRUPTIBLE); - - err = sock_error(sk); - if (err) - break; - } - set_current_state(TASK_RUNNING); - remove_wait_queue(sk_sleep(sk), &wait); - return err; -} - static void l2cap_monitor_timeout(struct work_struct *work) { struct l2cap_chan *chan = container_of(work, struct l2cap_chan, @@ -2263,7 +2249,8 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan, int err, count, hlen = L2CAP_HDR_SIZE + L2CAP_PSMLEN_SIZE; struct l2cap_hdr *lh; - BT_DBG("chan %p len %zu priority %u", chan, len, priority); + BT_DBG("chan %p psm 0x%2.2x len %zu priority %u", chan, + __le16_to_cpu(chan->psm), len, priority); count = min_t(unsigned int, (conn->mtu - hlen), len); @@ -2278,7 +2265,7 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan, lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE); lh->cid = cpu_to_le16(chan->dcid); lh->len = cpu_to_le16(len + L2CAP_PSMLEN_SIZE); - put_unaligned(chan->psm, skb_put(skb, L2CAP_PSMLEN_SIZE)); + put_unaligned(chan->psm, (__le16 *) skb_put(skb, L2CAP_PSMLEN_SIZE)); err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb); if (unlikely(err < 0)) { @@ -2826,17 +2813,16 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb) mutex_lock(&conn->chan_lock); list_for_each_entry(chan, &conn->chan_l, list) { - struct sock *sk = chan->sk; if (chan->chan_type != L2CAP_CHAN_RAW) continue; - /* Don't send frame to the socket it came from */ - if (skb->sk == sk) + /* Don't send frame to the channel it came from */ + if (bt_cb(skb)->chan == chan) continue; + nskb = skb_clone(skb, GFP_KERNEL); if (!nskb) continue; - if (chan->ops->recv(chan, nskb)) kfree_skb(nskb); } @@ -3043,8 +3029,8 @@ int l2cap_ertm_init(struct l2cap_chan *chan) skb_queue_head_init(&chan->tx_q); - chan->local_amp_id = 0; - chan->move_id = 0; + chan->local_amp_id = AMP_ID_BREDR; + chan->move_id = AMP_ID_BREDR; chan->move_state = L2CAP_MOVE_STABLE; chan->move_role = L2CAP_MOVE_ROLE_NONE; @@ -3084,20 +3070,20 @@ static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask) } } -static inline bool __l2cap_ews_supported(struct l2cap_chan *chan) +static inline bool __l2cap_ews_supported(struct l2cap_conn *conn) { - return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_WINDOW; + return conn->hs_enabled && conn->feat_mask & L2CAP_FEAT_EXT_WINDOW; } -static inline bool __l2cap_efs_supported(struct l2cap_chan *chan) +static inline bool __l2cap_efs_supported(struct l2cap_conn *conn) { - return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_FLOW; + return conn->hs_enabled && conn->feat_mask & L2CAP_FEAT_EXT_FLOW; } static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan, struct l2cap_conf_rfc *rfc) { - if (chan->local_amp_id && chan->hs_hcon) { + if (chan->local_amp_id != AMP_ID_BREDR && chan->hs_hcon) { u64 ertm_to = chan->hs_hcon->hdev->amp_be_flush_to; /* Class 1 devices have must have ERTM timeouts @@ -3135,7 +3121,7 @@ static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan, static inline void l2cap_txwin_setup(struct l2cap_chan *chan) { if (chan->tx_win > L2CAP_DEFAULT_TX_WINDOW && - __l2cap_ews_supported(chan)) { + __l2cap_ews_supported(chan->conn)) { /* use extended control field */ set_bit(FLAG_EXT_CTRL, &chan->flags); chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW; @@ -3165,7 +3151,7 @@ static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data) if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state)) break; - if (__l2cap_efs_supported(chan)) + if (__l2cap_efs_supported(chan->conn)) set_bit(FLAG_EFS_ENABLE, &chan->flags); /* fall through */ @@ -3317,7 +3303,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data) break; case L2CAP_CONF_EWS: - if (!enable_hs) + if (!chan->conn->hs_enabled) return -ECONNREFUSED; set_bit(FLAG_EXT_CTRL, &chan->flags); @@ -3349,7 +3335,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data) } if (remote_efs) { - if (__l2cap_efs_supported(chan)) + if (__l2cap_efs_supported(chan->conn)) set_bit(FLAG_EFS_ENABLE, &chan->flags); else return -ECONNREFUSED; @@ -3715,7 +3701,6 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, struct l2cap_conn_req *req = (struct l2cap_conn_req *) data; struct l2cap_conn_rsp rsp; struct l2cap_chan *chan = NULL, *pchan; - struct sock *parent, *sk = NULL; int result, status = L2CAP_CS_NO_INFO; u16 dcid = 0, scid = __le16_to_cpu(req->scid); @@ -3724,16 +3709,15 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, BT_DBG("psm 0x%2.2x scid 0x%4.4x", __le16_to_cpu(psm), scid); /* Check if we have socket listening on psm */ - pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, conn->src, conn->dst); + pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, &conn->hcon->src, + &conn->hcon->dst); if (!pchan) { result = L2CAP_CR_BAD_PSM; goto sendresp; } - parent = pchan->sk; - mutex_lock(&conn->chan_lock); - lock_sock(parent); + l2cap_chan_lock(pchan); /* Check if the ACL is secure enough (if not SDP) */ if (psm != __constant_cpu_to_le16(L2CAP_PSM_SDP) && @@ -3753,10 +3737,17 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, if (!chan) goto response; - sk = chan->sk; + /* For certain devices (ex: HID mouse), support for authentication, + * pairing and bonding is optional. For such devices, inorder to avoid + * the ACL alive for too long after L2CAP disconnection, reset the ACL + * disc_timeout back to HCI_DISCONN_TIMEOUT during L2CAP connect. + */ + conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT; - bacpy(&bt_sk(sk)->src, conn->src); - bacpy(&bt_sk(sk)->dst, conn->dst); + bacpy(&chan->src, &conn->hcon->src); + bacpy(&chan->dst, &conn->hcon->dst); + chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type); + chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type); chan->psm = psm; chan->dcid = scid; chan->local_amp_id = amp_id; @@ -3765,14 +3756,14 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, dcid = chan->scid; - __set_chan_timer(chan, sk->sk_sndtimeo); + __set_chan_timer(chan, chan->ops->get_sndtimeo(chan)); chan->ident = cmd->ident; if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) { if (l2cap_chan_check_security(chan)) { - if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { - __l2cap_state_change(chan, BT_CONNECT2); + if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) { + l2cap_state_change(chan, BT_CONNECT2); result = L2CAP_CR_PEND; status = L2CAP_CS_AUTHOR_PEND; chan->ops->defer(chan); @@ -3781,28 +3772,28 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn, * The connection will succeed after the * physical link is up. */ - if (amp_id) { - __l2cap_state_change(chan, BT_CONNECT2); - result = L2CAP_CR_PEND; - } else { - __l2cap_state_change(chan, BT_CONFIG); + if (amp_id == AMP_ID_BREDR) { + l2cap_state_change(chan, BT_CONFIG); result = L2CAP_CR_SUCCESS; + } else { + l2cap_state_change(chan, BT_CONNECT2); + result = L2CAP_CR_PEND; } status = L2CAP_CS_NO_INFO; } } else { - __l2cap_state_change(chan, BT_CONNECT2); + l2cap_state_change(chan, BT_CONNECT2); result = L2CAP_CR_PEND; status = L2CAP_CS_AUTHEN_PEND; } } else { - __l2cap_state_change(chan, BT_CONNECT2); + l2cap_state_change(chan, BT_CONNECT2); result = L2CAP_CR_PEND; status = L2CAP_CS_NO_INFO; } response: - release_sock(parent); + l2cap_chan_unlock(pchan); mutex_unlock(&conn->chan_lock); sendresp: @@ -3884,13 +3875,13 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn, if (scid) { chan = __l2cap_get_chan_by_scid(conn, scid); if (!chan) { - err = -EFAULT; + err = -EBADSLT; goto unlock; } } else { chan = __l2cap_get_chan_by_ident(conn, cmd->ident); if (!chan) { - err = -EFAULT; + err = -EBADSLT; goto unlock; } } @@ -3958,6 +3949,18 @@ static void l2cap_send_efs_conf_rsp(struct l2cap_chan *chan, void *data, L2CAP_CONF_SUCCESS, flags), data); } +static void cmd_reject_invalid_cid(struct l2cap_conn *conn, u8 ident, + u16 scid, u16 dcid) +{ + struct l2cap_cmd_rej_cid rej; + + rej.reason = __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID); + rej.scid = __cpu_to_le16(scid); + rej.dcid = __cpu_to_le16(dcid); + + l2cap_send_cmd(conn, ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej); +} + static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u16 cmd_len, u8 *data) @@ -3977,18 +3980,14 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, BT_DBG("dcid 0x%4.4x flags 0x%2.2x", dcid, flags); chan = l2cap_get_chan_by_scid(conn, dcid); - if (!chan) - return -ENOENT; + if (!chan) { + cmd_reject_invalid_cid(conn, cmd->ident, dcid, 0); + return 0; + } if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) { - struct l2cap_cmd_rej_cid rej; - - rej.reason = __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID); - rej.scid = cpu_to_le16(chan->scid); - rej.dcid = cpu_to_le16(chan->dcid); - - l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ, - sizeof(rej), &rej); + cmd_reject_invalid_cid(conn, cmd->ident, chan->scid, + chan->dcid); goto unlock; } @@ -4191,7 +4190,6 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_disconn_rsp rsp; u16 dcid, scid; struct l2cap_chan *chan; - struct sock *sk; if (cmd_len != sizeof(*req)) return -EPROTO; @@ -4206,20 +4204,17 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, chan = __l2cap_get_chan_by_scid(conn, dcid); if (!chan) { mutex_unlock(&conn->chan_lock); + cmd_reject_invalid_cid(conn, cmd->ident, dcid, scid); return 0; } l2cap_chan_lock(chan); - sk = chan->sk; - rsp.dcid = cpu_to_le16(chan->scid); rsp.scid = cpu_to_le16(chan->dcid); l2cap_send_cmd(conn, cmd->ident, L2CAP_DISCONN_RSP, sizeof(rsp), &rsp); - lock_sock(sk); - sk->sk_shutdown = SHUTDOWN_MASK; - release_sock(sk); + chan->ops->set_shutdown(chan); l2cap_chan_hold(chan); l2cap_chan_del(chan, ECONNRESET); @@ -4296,7 +4291,7 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, if (!disable_ertm) feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING | L2CAP_FEAT_FCS; - if (enable_hs) + if (conn->hs_enabled) feat_mask |= L2CAP_FEAT_EXT_FLOW | L2CAP_FEAT_EXT_WINDOW; @@ -4307,7 +4302,7 @@ static inline int l2cap_information_req(struct l2cap_conn *conn, u8 buf[12]; struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf; - if (enable_hs) + if (conn->hs_enabled) l2cap_fixed_chan[0] |= L2CAP_FC_A2MP; else l2cap_fixed_chan[0] &= ~L2CAP_FC_A2MP; @@ -4404,7 +4399,7 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn, if (cmd_len != sizeof(*req)) return -EPROTO; - if (!enable_hs) + if (!conn->hs_enabled) return -EINVAL; psm = le16_to_cpu(req->psm); @@ -4413,7 +4408,7 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn, BT_DBG("psm 0x%2.2x, scid 0x%4.4x, amp_id %d", psm, scid, req->amp_id); /* For controller id 0 make BR/EDR connection */ - if (req->amp_id == HCI_BREDR_ID) { + if (req->amp_id == AMP_ID_BREDR) { l2cap_connect(conn, cmd, data, L2CAP_CREATE_CHAN_RSP, req->amp_id); return 0; @@ -4435,10 +4430,13 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn, struct amp_mgr *mgr = conn->hcon->amp_mgr; struct hci_conn *hs_hcon; - hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, conn->dst); + hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, + &conn->hcon->dst); if (!hs_hcon) { hci_dev_put(hdev); - return -EFAULT; + cmd_reject_invalid_cid(conn, cmd->ident, chan->scid, + chan->dcid); + return 0; } BT_DBG("mgr %p bredr_chan %p hs_hcon %p", mgr, chan, hs_hcon); @@ -4462,7 +4460,7 @@ error: l2cap_send_cmd(conn, cmd->ident, L2CAP_CREATE_CHAN_RSP, sizeof(rsp), &rsp); - return -EFAULT; + return 0; } static void l2cap_send_move_chan_req(struct l2cap_chan *chan, u8 dest_amp_id) @@ -4648,7 +4646,7 @@ void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan, if (chan->state != BT_CONNECTED) { /* Ignore logical link if channel is on BR/EDR */ - if (chan->local_amp_id) + if (chan->local_amp_id != AMP_ID_BREDR) l2cap_logical_finish_create(chan, hchan); } else { l2cap_logical_finish_move(chan, hchan); @@ -4659,7 +4657,7 @@ void l2cap_move_start(struct l2cap_chan *chan) { BT_DBG("chan %p", chan); - if (chan->local_amp_id == HCI_BREDR_ID) { + if (chan->local_amp_id == AMP_ID_BREDR) { if (chan->chan_policy != BT_CHANNEL_POLICY_AMP_PREFERRED) return; chan->move_role = L2CAP_MOVE_ROLE_INITIATOR; @@ -4716,7 +4714,7 @@ static void l2cap_do_create(struct l2cap_chan *chan, int result, sizeof(rsp), &rsp); if (result == L2CAP_CR_SUCCESS) { - __l2cap_state_change(chan, BT_CONFIG); + l2cap_state_change(chan, BT_CONFIG); set_bit(CONF_REQ_SENT, &chan->conf_state); l2cap_send_cmd(chan->conn, l2cap_get_ident(chan->conn), L2CAP_CONF_REQ, @@ -4831,7 +4829,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn, BT_DBG("icid 0x%4.4x, dest_amp_id %d", icid, req->dest_amp_id); - if (!enable_hs) + if (!conn->hs_enabled) return -EINVAL; chan = l2cap_get_chan_by_dcid(conn, icid); @@ -4858,7 +4856,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn, goto send_move_response; } - if (req->dest_amp_id) { + if (req->dest_amp_id != AMP_ID_BREDR) { struct hci_dev *hdev; hdev = hci_dev_get(req->dest_amp_id); if (!hdev || hdev->dev_type != HCI_AMP || @@ -4878,7 +4876,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn, */ if ((__chan_is_moving(chan) || chan->move_role != L2CAP_MOVE_ROLE_NONE) && - bacmp(conn->src, conn->dst) > 0) { + bacmp(&conn->hcon->src, &conn->hcon->dst) > 0) { result = L2CAP_MR_COLLISION; goto send_move_response; } @@ -4888,7 +4886,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn, chan->move_id = req->dest_amp_id; icid = chan->dcid; - if (!req->dest_amp_id) { + if (req->dest_amp_id == AMP_ID_BREDR) { /* Moving to BR/EDR */ if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) { chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY; @@ -5080,7 +5078,7 @@ static int l2cap_move_channel_confirm(struct l2cap_conn *conn, if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM) { if (result == L2CAP_MC_CONFIRMED) { chan->local_amp_id = chan->move_id; - if (!chan->local_amp_id) + if (chan->local_amp_id == AMP_ID_BREDR) __release_logical_link(chan); } else { chan->move_id = chan->local_amp_id; @@ -5120,7 +5118,7 @@ static inline int l2cap_move_channel_confirm_rsp(struct l2cap_conn *conn, if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM_RSP) { chan->local_amp_id = chan->move_id; - if (!chan->local_amp_id && chan->hs_hchan) + if (chan->local_amp_id == AMP_ID_BREDR && chan->hs_hchan) __release_logical_link(chan); l2cap_move_done(chan); @@ -5212,7 +5210,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn, case L2CAP_CONN_RSP: case L2CAP_CREATE_CHAN_RSP: - err = l2cap_connect_create_rsp(conn, cmd, cmd_len, data); + l2cap_connect_create_rsp(conn, cmd, cmd_len, data); break; case L2CAP_CONF_REQ: @@ -5220,7 +5218,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn, break; case L2CAP_CONF_RSP: - err = l2cap_config_rsp(conn, cmd, cmd_len, data); + l2cap_config_rsp(conn, cmd, cmd_len, data); break; case L2CAP_DISCONN_REQ: @@ -5228,7 +5226,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn, break; case L2CAP_DISCONN_RSP: - err = l2cap_disconnect_rsp(conn, cmd, cmd_len, data); + l2cap_disconnect_rsp(conn, cmd, cmd_len, data); break; case L2CAP_ECHO_REQ: @@ -5243,7 +5241,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn, break; case L2CAP_INFO_RSP: - err = l2cap_information_rsp(conn, cmd, cmd_len, data); + l2cap_information_rsp(conn, cmd, cmd_len, data); break; case L2CAP_CREATE_CHAN_REQ: @@ -5255,7 +5253,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn, break; case L2CAP_MOVE_CHAN_RSP: - err = l2cap_move_channel_rsp(conn, cmd, cmd_len, data); + l2cap_move_channel_rsp(conn, cmd, cmd_len, data); break; case L2CAP_MOVE_CHAN_CFM: @@ -5263,7 +5261,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn, break; case L2CAP_MOVE_CHAN_CFM_RSP: - err = l2cap_move_channel_confirm_rsp(conn, cmd, cmd_len, data); + l2cap_move_channel_confirm_rsp(conn, cmd, cmd_len, data); break; default: @@ -5297,51 +5295,48 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn, static inline void l2cap_le_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb) { - u8 *data = skb->data; - int len = skb->len; - struct l2cap_cmd_hdr cmd; + struct hci_conn *hcon = conn->hcon; + struct l2cap_cmd_hdr *cmd; + u16 len; int err; - l2cap_raw_recv(conn, skb); + if (hcon->type != LE_LINK) + goto drop; - while (len >= L2CAP_CMD_HDR_SIZE) { - u16 cmd_len; - memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE); - data += L2CAP_CMD_HDR_SIZE; - len -= L2CAP_CMD_HDR_SIZE; + if (skb->len < L2CAP_CMD_HDR_SIZE) + goto drop; - cmd_len = le16_to_cpu(cmd.len); + cmd = (void *) skb->data; + skb_pull(skb, L2CAP_CMD_HDR_SIZE); - BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len, - cmd.ident); + len = le16_to_cpu(cmd->len); - if (cmd_len > len || !cmd.ident) { - BT_DBG("corrupted command"); - break; - } + BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd->code, len, cmd->ident); - err = l2cap_le_sig_cmd(conn, &cmd, data); - if (err) { - struct l2cap_cmd_rej_unk rej; + if (len != skb->len || !cmd->ident) { + BT_DBG("corrupted command"); + goto drop; + } - BT_ERR("Wrong link type (%d)", err); + err = l2cap_le_sig_cmd(conn, cmd, skb->data); + if (err) { + struct l2cap_cmd_rej_unk rej; - /* FIXME: Map err to a valid reason */ - rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD); - l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, - sizeof(rej), &rej); - } + BT_ERR("Wrong link type (%d)", err); - data += cmd_len; - len -= cmd_len; + rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD); + l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ, + sizeof(rej), &rej); } +drop: kfree_skb(skb); } static inline void l2cap_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb) { + struct hci_conn *hcon = conn->hcon; u8 *data = skb->data; int len = skb->len; struct l2cap_cmd_hdr cmd; @@ -5349,6 +5344,9 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn, l2cap_raw_recv(conn, skb); + if (hcon->type != ACL_LINK) + goto drop; + while (len >= L2CAP_CMD_HDR_SIZE) { u16 cmd_len; memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE); @@ -5371,7 +5369,6 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn, BT_ERR("Wrong link type (%d)", err); - /* FIXME: Map err to a valid reason */ rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD); l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej); @@ -5381,6 +5378,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn, len -= cmd_len; } +drop: kfree_skb(skb); } @@ -5777,7 +5775,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan, struct sk_buff *skb, u8 event) { int err = 0; - bool skb_in_use = 0; + bool skb_in_use = false; BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb, event); @@ -5798,7 +5796,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan, control->txseq); chan->buffer_seq = chan->expected_tx_seq; - skb_in_use = 1; + skb_in_use = true; err = l2cap_reassemble_sdu(chan, skb, control); if (err) @@ -5834,7 +5832,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan, * current frame is stored for later use. */ skb_queue_tail(&chan->srej_q, skb); - skb_in_use = 1; + skb_in_use = true; BT_DBG("Queued %p (queue len %d)", skb, skb_queue_len(&chan->srej_q)); @@ -5912,7 +5910,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan, { int err = 0; u16 txseq = control->txseq; - bool skb_in_use = 0; + bool skb_in_use = false; BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb, event); @@ -5924,7 +5922,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan, /* Keep frame for reassembly later */ l2cap_pass_to_tx(chan, control); skb_queue_tail(&chan->srej_q, skb); - skb_in_use = 1; + skb_in_use = true; BT_DBG("Queued %p (queue len %d)", skb, skb_queue_len(&chan->srej_q)); @@ -5935,7 +5933,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan, l2cap_pass_to_tx(chan, control); skb_queue_tail(&chan->srej_q, skb); - skb_in_use = 1; + skb_in_use = true; BT_DBG("Queued %p (queue len %d)", skb, skb_queue_len(&chan->srej_q)); @@ -5950,7 +5948,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan, * the missing frames. */ skb_queue_tail(&chan->srej_q, skb); - skb_in_use = 1; + skb_in_use = true; BT_DBG("Queued %p (queue len %d)", skb, skb_queue_len(&chan->srej_q)); @@ -5964,7 +5962,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan, * SREJ'd frames. */ skb_queue_tail(&chan->srej_q, skb); - skb_in_use = 1; + skb_in_use = true; BT_DBG("Queued %p (queue len %d)", skb, skb_queue_len(&chan->srej_q)); @@ -6373,9 +6371,13 @@ done: static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb) { + struct hci_conn *hcon = conn->hcon; struct l2cap_chan *chan; - chan = l2cap_global_chan_by_psm(0, psm, conn->src, conn->dst); + if (hcon->type != ACL_LINK) + goto drop; + + chan = l2cap_global_chan_by_psm(0, psm, &hcon->src, &hcon->dst); if (!chan) goto drop; @@ -6387,6 +6389,10 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, if (chan->imtu < skb->len) goto drop; + /* Store remote BD_ADDR and PSM for msg_name */ + bacpy(&bt_cb(skb)->bdaddr, &hcon->dst); + bt_cb(skb)->psm = psm; + if (!chan->ops->recv(chan, skb)) return; @@ -6397,15 +6403,22 @@ drop: static void l2cap_att_channel(struct l2cap_conn *conn, struct sk_buff *skb) { + struct hci_conn *hcon = conn->hcon; struct l2cap_chan *chan; + if (hcon->type != LE_LINK) + goto drop; + chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT, - conn->src, conn->dst); + &hcon->src, &hcon->dst); if (!chan) goto drop; BT_DBG("chan %p, len %d", chan, skb->len); + if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, hcon->dst_type)) + goto drop; + if (chan->imtu < skb->len) goto drop; @@ -6434,9 +6447,6 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb) BT_DBG("len %d, cid 0x%4.4x", len, cid); switch (cid) { - case L2CAP_CID_LE_SIGNALING: - l2cap_le_sig_channel(conn, skb); - break; case L2CAP_CID_SIGNALING: l2cap_sig_channel(conn, skb); break; @@ -6451,6 +6461,10 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb) l2cap_att_channel(conn, skb); break; + case L2CAP_CID_LE_SIGNALING: + l2cap_le_sig_channel(conn, skb); + break; + case L2CAP_CID_SMP: if (smp_sig_channel(conn, skb)) l2cap_conn_del(conn->hcon, EACCES); @@ -6474,17 +6488,15 @@ int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr) /* Find listening sockets and check their link_mode */ read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - if (c->state != BT_LISTEN) continue; - if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) { + if (!bacmp(&c->src, &hdev->bdaddr)) { lm1 |= HCI_LM_ACCEPT; if (test_bit(FLAG_ROLE_SWITCH, &c->flags)) lm1 |= HCI_LM_MASTER; exact++; - } else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { + } else if (!bacmp(&c->src, BDADDR_ANY)) { lm2 |= HCI_LM_ACCEPT; if (test_bit(FLAG_ROLE_SWITCH, &c->flags)) lm2 |= HCI_LM_MASTER; @@ -6590,11 +6602,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt) if (!status && (chan->state == BT_CONNECTED || chan->state == BT_CONFIG)) { - struct sock *sk = chan->sk; - - clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags); - sk->sk_state_change(sk); - + chan->ops->resume(chan); l2cap_check_encryption(chan, encrypt); l2cap_chan_unlock(chan); continue; @@ -6607,32 +6615,26 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt) __set_chan_timer(chan, L2CAP_DISC_TIMEOUT); } } else if (chan->state == BT_CONNECT2) { - struct sock *sk = chan->sk; struct l2cap_conn_rsp rsp; __u16 res, stat; - lock_sock(sk); - if (!status) { - if (test_bit(BT_SK_DEFER_SETUP, - &bt_sk(sk)->flags)) { + if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) { res = L2CAP_CR_PEND; stat = L2CAP_CS_AUTHOR_PEND; chan->ops->defer(chan); } else { - __l2cap_state_change(chan, BT_CONFIG); + l2cap_state_change(chan, BT_CONFIG); res = L2CAP_CR_SUCCESS; stat = L2CAP_CS_NO_INFO; } } else { - __l2cap_state_change(chan, BT_DISCONN); + l2cap_state_change(chan, BT_DISCONN); __set_chan_timer(chan, L2CAP_DISC_TIMEOUT); res = L2CAP_CR_SEC_BLOCK; stat = L2CAP_CS_NO_INFO; } - release_sock(sk); - rsp.scid = cpu_to_le16(chan->dcid); rsp.dcid = cpu_to_le16(chan->scid); rsp.result = cpu_to_le16(res); @@ -6749,9 +6751,13 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags) conn->rx_len -= skb->len; if (!conn->rx_len) { - /* Complete frame received */ - l2cap_recv_frame(conn, conn->rx_skb); + /* Complete frame received. l2cap_recv_frame + * takes ownership of the skb so set the global + * rx_skb pointer to NULL first. + */ + struct sk_buff *rx_skb = conn->rx_skb; conn->rx_skb = NULL; + l2cap_recv_frame(conn, rx_skb); } break; } @@ -6768,10 +6774,8 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p) read_lock(&chan_list_lock); list_for_each_entry(c, &chan_list, global_l) { - struct sock *sk = c->sk; - seq_printf(f, "%pMR %pMR %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n", - &bt_sk(sk)->src, &bt_sk(sk)->dst, + &c->src, &c->dst, c->state, __le16_to_cpu(c->psm), c->scid, c->dcid, c->imtu, c->omtu, c->sec_level, c->mode); @@ -6804,12 +6808,11 @@ int __init l2cap_init(void) if (err < 0) return err; - if (bt_debugfs) { - l2cap_debugfs = debugfs_create_file("l2cap", 0444, bt_debugfs, - NULL, &l2cap_debugfs_fops); - if (!l2cap_debugfs) - BT_ERR("Failed to create L2CAP debug file"); - } + if (IS_ERR_OR_NULL(bt_debugfs)) + return 0; + + l2cap_debugfs = debugfs_create_file("l2cap", 0444, bt_debugfs, + NULL, &l2cap_debugfs_fops); return 0; } diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index 0098af80b21..7cc24d263ca 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -32,7 +32,8 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include <net/bluetooth/l2cap.h> -#include <net/bluetooth/smp.h> + +#include "smp.h" static struct bt_sock_list l2cap_sk_list = { .lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock) @@ -68,6 +69,18 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) if (la.l2_cid && la.l2_psm) return -EINVAL; + if (!bdaddr_type_is_valid(la.l2_bdaddr_type)) + return -EINVAL; + + if (bdaddr_type_is_le(la.l2_bdaddr_type)) { + /* Connection oriented channels are not supported on LE */ + if (la.l2_psm) + return -EINVAL; + /* We only allow ATT user space socket */ + if (la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT)) + return -EINVAL; + } + lock_sock(sk); if (sk->sk_state != BT_OPEN) { @@ -99,11 +112,20 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) if (err < 0) goto done; - if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP || - __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM) - chan->sec_level = BT_SECURITY_SDP; + switch (chan->chan_type) { + case L2CAP_CHAN_CONN_LESS: + if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_3DSP) + chan->sec_level = BT_SECURITY_SDP; + break; + case L2CAP_CHAN_CONN_ORIENTED: + if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP || + __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM) + chan->sec_level = BT_SECURITY_SDP; + break; + } - bacpy(&bt_sk(sk)->src, &la.l2_bdaddr); + bacpy(&chan->src, &la.l2_bdaddr); + chan->src_type = la.l2_bdaddr_type; chan->state = BT_BOUND; sk->sk_state = BT_BOUND; @@ -134,6 +156,47 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr, if (la.l2_cid && la.l2_psm) return -EINVAL; + if (!bdaddr_type_is_valid(la.l2_bdaddr_type)) + return -EINVAL; + + /* Check that the socket wasn't bound to something that + * conflicts with the address given to connect(). If chan->src + * is BDADDR_ANY it means bind() was never used, in which case + * chan->src_type and la.l2_bdaddr_type do not need to match. + */ + if (chan->src_type == BDADDR_BREDR && bacmp(&chan->src, BDADDR_ANY) && + bdaddr_type_is_le(la.l2_bdaddr_type)) { + /* Old user space versions will try to incorrectly bind + * the ATT socket using BDADDR_BREDR. We need to accept + * this and fix up the source address type only when + * both the source CID and destination CID indicate + * ATT. Anything else is an invalid combination. + */ + if (chan->scid != L2CAP_CID_ATT || + la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT)) + return -EINVAL; + + /* We don't have the hdev available here to make a + * better decision on random vs public, but since all + * user space versions that exhibit this issue anyway do + * not support random local addresses assuming public + * here is good enough. + */ + chan->src_type = BDADDR_LE_PUBLIC; + } + + if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR) + return -EINVAL; + + if (bdaddr_type_is_le(la.l2_bdaddr_type)) { + /* Connection oriented channels are not supported on LE */ + if (la.l2_psm) + return -EINVAL; + /* We only allow ATT user space socket */ + if (la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT)) + return -EINVAL; + } + err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid), &la.l2_bdaddr, la.l2_bdaddr_type); if (err) @@ -265,12 +328,14 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr, if (peer) { la->l2_psm = chan->psm; - bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst); + bacpy(&la->l2_bdaddr, &chan->dst); la->l2_cid = cpu_to_le16(chan->dcid); + la->l2_bdaddr_type = chan->dst_type; } else { la->l2_psm = chan->sport; - bacpy(&la->l2_bdaddr, &bt_sk(sk)->src); + bacpy(&la->l2_bdaddr, &chan->src); la->l2_cid = cpu_to_le16(chan->scid); + la->l2_bdaddr_type = chan->src_type; } return 0; @@ -445,11 +510,6 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname, break; case BT_CHANNEL_POLICY: - if (!enable_hs) { - err = -ENOPROTOOPT; - break; - } - if (put_user(chan->chan_policy, (u32 __user *) optval)) err = -EFAULT; break; @@ -665,10 +725,13 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (opt) + if (opt) { set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); - else + set_bit(FLAG_DEFER_SETUP, &chan->flags); + } else { clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags); + clear_bit(FLAG_DEFER_SETUP, &chan->flags); + } break; case BT_FLUSHABLE: @@ -683,7 +746,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, } if (opt == BT_FLUSHABLE_OFF) { - struct l2cap_conn *conn = chan->conn; + conn = chan->conn; /* proceed further only when we have l2cap_conn and No Flush support in the LM */ if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) { @@ -720,11 +783,6 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_CHANNEL_POLICY: - if (!enable_hs) { - err = -ENOPROTOOPT; - break; - } - if (get_user(opt, (u32 __user *) optval)) { err = -EFAULT; break; @@ -777,6 +835,12 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, if (sk->sk_state != BT_CONNECTED) return -ENOTCONN; + lock_sock(sk); + err = bt_sock_wait_ready(sk, msg->msg_flags); + release_sock(sk); + if (err) + return err; + l2cap_chan_lock(chan); err = l2cap_chan_send(chan, msg, len, sk->sk_priority); l2cap_chan_unlock(chan); @@ -799,8 +863,8 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, pi->chan->state = BT_CONFIG; __l2cap_connect_rsp_defer(pi->chan); - release_sock(sk); - return 0; + err = 0; + goto done; } release_sock(sk); @@ -856,6 +920,38 @@ static void l2cap_sock_kill(struct sock *sk) sock_put(sk); } +static int __l2cap_wait_ack(struct sock *sk) +{ + struct l2cap_chan *chan = l2cap_pi(sk)->chan; + DECLARE_WAITQUEUE(wait, current); + int err = 0; + int timeo = HZ/5; + + add_wait_queue(sk_sleep(sk), &wait); + set_current_state(TASK_INTERRUPTIBLE); + while (chan->unacked_frames > 0 && chan->conn) { + if (!timeo) + timeo = HZ/5; + + if (signal_pending(current)) { + err = sock_intr_errno(timeo); + break; + } + + release_sock(sk); + timeo = schedule_timeout(timeo); + lock_sock(sk); + set_current_state(TASK_INTERRUPTIBLE); + + err = sock_error(sk); + if (err) + break; + } + set_current_state(TASK_RUNNING); + remove_wait_queue(sk_sleep(sk), &wait); + return err; +} + static int l2cap_sock_shutdown(struct socket *sock, int how) { struct sock *sk = sock->sk; @@ -946,6 +1042,8 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan) { struct sock *sk, *parent = chan->data; + lock_sock(parent); + /* Check for backlog size */ if (sk_acceptq_is_full(parent)) { BT_DBG("backlog full %d", parent->sk_ack_backlog); @@ -963,18 +1061,19 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan) bt_accept_enqueue(parent, sk); + release_sock(parent); + return l2cap_pi(sk)->chan; } static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb) { - int err; struct sock *sk = chan->data; - struct l2cap_pinfo *pi = l2cap_pi(sk); + int err; lock_sock(sk); - if (pi->rx_busy_skb) { + if (l2cap_pi(sk)->rx_busy_skb) { err = -ENOMEM; goto done; } @@ -990,9 +1089,9 @@ static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb) * acked and reassembled until there is buffer space * available. */ - if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) { - pi->rx_busy_skb = skb; - l2cap_chan_busy(pi->chan, 1); + if (err < 0 && chan->mode == L2CAP_MODE_ERTM) { + l2cap_pi(sk)->rx_busy_skb = skb; + l2cap_chan_busy(chan, 1); err = 0; } @@ -1050,26 +1149,33 @@ static void l2cap_sock_teardown_cb(struct l2cap_chan *chan, int err) release_sock(sk); } -static void l2cap_sock_state_change_cb(struct l2cap_chan *chan, int state) +static void l2cap_sock_state_change_cb(struct l2cap_chan *chan, int state, + int err) { struct sock *sk = chan->data; sk->sk_state = state; + + if (err) + sk->sk_err = err; } static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan, unsigned long len, int nb) { + struct sock *sk = chan->data; struct sk_buff *skb; int err; l2cap_chan_unlock(chan); - skb = bt_skb_send_alloc(chan->sk, len, nb, &err); + skb = bt_skb_send_alloc(sk, len, nb, &err); l2cap_chan_lock(chan); if (!skb) return ERR_PTR(err); + bt_cb(skb)->chan = chan; + return skb; } @@ -1095,11 +1201,39 @@ static void l2cap_sock_ready_cb(struct l2cap_chan *chan) static void l2cap_sock_defer_cb(struct l2cap_chan *chan) { - struct sock *sk = chan->data; - struct sock *parent = bt_sk(sk)->parent; + struct sock *parent, *sk = chan->data; + + lock_sock(sk); + parent = bt_sk(sk)->parent; if (parent) parent->sk_data_ready(parent, 0); + + release_sock(sk); +} + +static void l2cap_sock_resume_cb(struct l2cap_chan *chan) +{ + struct sock *sk = chan->data; + + clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags); + sk->sk_state_change(sk); +} + +static void l2cap_sock_set_shutdown_cb(struct l2cap_chan *chan) +{ + struct sock *sk = chan->data; + + lock_sock(sk); + sk->sk_shutdown = SHUTDOWN_MASK; + release_sock(sk); +} + +static long l2cap_sock_get_sndtimeo_cb(struct l2cap_chan *chan) +{ + struct sock *sk = chan->data; + + return sk->sk_sndtimeo; } static struct l2cap_ops l2cap_chan_ops = { @@ -1111,6 +1245,9 @@ static struct l2cap_ops l2cap_chan_ops = { .state_change = l2cap_sock_state_change_cb, .ready = l2cap_sock_ready_cb, .defer = l2cap_sock_defer_cb, + .resume = l2cap_sock_resume_cb, + .set_shutdown = l2cap_sock_set_shutdown_cb, + .get_sndtimeo = l2cap_sock_get_sndtimeo_cb, .alloc_skb = l2cap_sock_alloc_skb_cb, }; @@ -1120,6 +1257,7 @@ static void l2cap_sock_destruct(struct sock *sk) if (l2cap_pi(sk)->chan) l2cap_chan_put(l2cap_pi(sk)->chan); + if (l2cap_pi(sk)->rx_busy_skb) { kfree_skb(l2cap_pi(sk)->rx_busy_skb); l2cap_pi(sk)->rx_busy_skb = NULL; @@ -1129,10 +1267,22 @@ static void l2cap_sock_destruct(struct sock *sk) skb_queue_purge(&sk->sk_write_queue); } +static void l2cap_skb_msg_name(struct sk_buff *skb, void *msg_name, + int *msg_namelen) +{ + struct sockaddr_l2 *la = (struct sockaddr_l2 *) msg_name; + + memset(la, 0, sizeof(struct sockaddr_l2)); + la->l2_family = AF_BLUETOOTH; + la->l2_psm = bt_cb(skb)->psm; + bacpy(&la->l2_bdaddr, &bt_cb(skb)->bdaddr); + + *msg_namelen = sizeof(struct sockaddr_l2); +} + static void l2cap_sock_init(struct sock *sk, struct sock *parent) { - struct l2cap_pinfo *pi = l2cap_pi(sk); - struct l2cap_chan *chan = pi->chan; + struct l2cap_chan *chan = l2cap_pi(sk)->chan; BT_DBG("sk %p", sk); @@ -1156,13 +1306,13 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent) security_sk_clone(parent, sk); } else { - switch (sk->sk_type) { case SOCK_RAW: chan->chan_type = L2CAP_CHAN_RAW; break; case SOCK_DGRAM: chan->chan_type = L2CAP_CHAN_CONN_LESS; + bt_sk(sk)->skb_msg_name = l2cap_skb_msg_name; break; case SOCK_SEQPACKET: case SOCK_STREAM: @@ -1224,8 +1374,6 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock, l2cap_chan_hold(chan); - chan->sk = sk; - l2cap_pi(sk)->chan = chan; return sk; diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index fedc5399d46..074d83690a4 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -30,12 +30,11 @@ #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> #include <net/bluetooth/mgmt.h> -#include <net/bluetooth/smp.h> -bool enable_hs; +#include "smp.h" #define MGMT_VERSION 1 -#define MGMT_REVISION 3 +#define MGMT_REVISION 4 static const u16 mgmt_commands[] = { MGMT_OP_READ_INDEX_LIST, @@ -76,6 +75,10 @@ static const u16 mgmt_commands[] = { MGMT_OP_BLOCK_DEVICE, MGMT_OP_UNBLOCK_DEVICE, MGMT_OP_SET_DEVICE_ID, + MGMT_OP_SET_ADVERTISING, + MGMT_OP_SET_BREDR, + MGMT_OP_SET_STATIC_ADDRESS, + MGMT_OP_SET_SCAN_PARAMS, }; static const u16 mgmt_events[] = { @@ -181,11 +184,6 @@ static u8 mgmt_status_table[] = { MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */ }; -bool mgmt_valid_hdev(struct hci_dev *hdev) -{ - return hdev->dev_type == HCI_BREDR; -} - static u8 mgmt_status(u8 hci_status) { if (hci_status < ARRAY_SIZE(mgmt_status_table)) @@ -321,10 +319,8 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data, count = 0; list_for_each_entry(d, &hci_dev_list, list) { - if (!mgmt_valid_hdev(d)) - continue; - - count++; + if (d->dev_type == HCI_BREDR) + count++; } rp_len = sizeof(*rp) + (2 * count); @@ -339,11 +335,13 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data, if (test_bit(HCI_SETUP, &d->dev_flags)) continue; - if (!mgmt_valid_hdev(d)) + if (test_bit(HCI_USER_CHANNEL, &d->dev_flags)) continue; - rp->index[count++] = cpu_to_le16(d->id); - BT_DBG("Added hci%u", d->id); + if (d->dev_type == HCI_BREDR) { + rp->index[count++] = cpu_to_le16(d->id); + BT_DBG("Added hci%u", d->id); + } } rp->num_controllers = cpu_to_le16(count); @@ -366,9 +364,6 @@ static u32 get_supported_settings(struct hci_dev *hdev) settings |= MGMT_SETTING_POWERED; settings |= MGMT_SETTING_PAIRABLE; - if (lmp_ssp_capable(hdev)) - settings |= MGMT_SETTING_SSP; - if (lmp_bredr_capable(hdev)) { settings |= MGMT_SETTING_CONNECTABLE; if (hdev->hci_ver >= BLUETOOTH_VER_1_2) @@ -376,13 +371,17 @@ static u32 get_supported_settings(struct hci_dev *hdev) settings |= MGMT_SETTING_DISCOVERABLE; settings |= MGMT_SETTING_BREDR; settings |= MGMT_SETTING_LINK_SECURITY; - } - if (enable_hs) - settings |= MGMT_SETTING_HS; + if (lmp_ssp_capable(hdev)) { + settings |= MGMT_SETTING_SSP; + settings |= MGMT_SETTING_HS; + } + } - if (lmp_le_capable(hdev)) + if (lmp_le_capable(hdev)) { settings |= MGMT_SETTING_LE; + settings |= MGMT_SETTING_ADVERTISING; + } return settings; } @@ -406,7 +405,7 @@ static u32 get_current_settings(struct hci_dev *hdev) if (test_bit(HCI_PAIRABLE, &hdev->dev_flags)) settings |= MGMT_SETTING_PAIRABLE; - if (lmp_bredr_capable(hdev)) + if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) settings |= MGMT_SETTING_BREDR; if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) @@ -421,6 +420,9 @@ static u32 get_current_settings(struct hci_dev *hdev) if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags)) settings |= MGMT_SETTING_HS; + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) + settings |= MGMT_SETTING_ADVERTISING; + return settings; } @@ -534,6 +536,156 @@ static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len) return ptr; } +static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev) +{ + struct pending_cmd *cmd; + + list_for_each_entry(cmd, &hdev->mgmt_pending, list) { + if (cmd->opcode == opcode) + return cmd; + } + + return NULL; +} + +static u8 create_scan_rsp_data(struct hci_dev *hdev, u8 *ptr) +{ + u8 ad_len = 0; + size_t name_len; + + name_len = strlen(hdev->dev_name); + if (name_len > 0) { + size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2; + + if (name_len > max_len) { + name_len = max_len; + ptr[1] = EIR_NAME_SHORT; + } else + ptr[1] = EIR_NAME_COMPLETE; + + ptr[0] = name_len + 1; + + memcpy(ptr + 2, hdev->dev_name, name_len); + + ad_len += (name_len + 2); + ptr += (name_len + 2); + } + + return ad_len; +} + +static void update_scan_rsp_data(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + struct hci_cp_le_set_scan_rsp_data cp; + u8 len; + + if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) + return; + + memset(&cp, 0, sizeof(cp)); + + len = create_scan_rsp_data(hdev, cp.data); + + if (hdev->scan_rsp_data_len == len && + memcmp(cp.data, hdev->scan_rsp_data, len) == 0) + return; + + memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data)); + hdev->scan_rsp_data_len = len; + + cp.length = len; + + hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp); +} + +static u8 get_adv_discov_flags(struct hci_dev *hdev) +{ + struct pending_cmd *cmd; + + /* If there's a pending mgmt command the flags will not yet have + * their final values, so check for this first. + */ + cmd = mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev); + if (cmd) { + struct mgmt_mode *cp = cmd->param; + if (cp->val == 0x01) + return LE_AD_GENERAL; + else if (cp->val == 0x02) + return LE_AD_LIMITED; + } else { + if (test_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags)) + return LE_AD_LIMITED; + else if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) + return LE_AD_GENERAL; + } + + return 0; +} + +static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr) +{ + u8 ad_len = 0, flags = 0; + + flags |= get_adv_discov_flags(hdev); + + if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { + if (lmp_le_br_capable(hdev)) + flags |= LE_AD_SIM_LE_BREDR_CTRL; + if (lmp_host_le_br_capable(hdev)) + flags |= LE_AD_SIM_LE_BREDR_HOST; + } else { + flags |= LE_AD_NO_BREDR; + } + + if (flags) { + BT_DBG("adv flags 0x%02x", flags); + + ptr[0] = 2; + ptr[1] = EIR_FLAGS; + ptr[2] = flags; + + ad_len += 3; + ptr += 3; + } + + if (hdev->adv_tx_power != HCI_TX_POWER_INVALID) { + ptr[0] = 2; + ptr[1] = EIR_TX_POWER; + ptr[2] = (u8) hdev->adv_tx_power; + + ad_len += 3; + ptr += 3; + } + + return ad_len; +} + +static void update_adv_data(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + struct hci_cp_le_set_adv_data cp; + u8 len; + + if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) + return; + + memset(&cp, 0, sizeof(cp)); + + len = create_adv_data(hdev, cp.data); + + if (hdev->adv_data_len == len && + memcmp(cp.data, hdev->adv_data, len) == 0) + return; + + memcpy(hdev->adv_data, cp.data, sizeof(cp.data)); + hdev->adv_data_len = len; + + cp.length = len; + + hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp); +} + static void create_eir(struct hci_dev *hdev, u8 *data) { u8 *ptr = data; @@ -632,6 +784,9 @@ static void update_class(struct hci_request *req) if (!hdev_is_powered(hdev)) return; + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + return; + if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) return; @@ -639,6 +794,9 @@ static void update_class(struct hci_request *req) cod[1] = hdev->major_class; cod[2] = get_service_classes(hdev); + if (test_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags)) + cod[1] |= 0x20; + if (memcmp(cod, hdev->dev_class, 3) == 0) return; @@ -763,18 +921,6 @@ static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev, } } -static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev) -{ - struct pending_cmd *cmd; - - list_for_each_entry(cmd, &hdev->mgmt_pending, list) { - if (cmd->opcode == opcode) - return cmd; - } - - return NULL; -} - static void mgmt_pending_remove(struct pending_cmd *cmd) { list_del(&cmd->list); @@ -804,6 +950,12 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data, hci_dev_lock(hdev); + if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) { + err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED, + MGMT_STATUS_BUSY); + goto failed; + } + if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) { cancel_delayed_work(&hdev->power_off); @@ -820,12 +972,6 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data, goto failed; } - if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) { - err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED, - MGMT_STATUS_BUSY); - goto failed; - } - cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len); if (!cmd) { err = -ENOMEM; @@ -883,27 +1029,141 @@ static int new_settings(struct hci_dev *hdev, struct sock *skip) return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip); } +struct cmd_lookup { + struct sock *sk; + struct hci_dev *hdev; + u8 mgmt_status; +}; + +static void settings_rsp(struct pending_cmd *cmd, void *data) +{ + struct cmd_lookup *match = data; + + send_settings_rsp(cmd->sk, cmd->opcode, match->hdev); + + list_del(&cmd->list); + + if (match->sk == NULL) { + match->sk = cmd->sk; + sock_hold(match->sk); + } + + mgmt_pending_free(cmd); +} + +static void cmd_status_rsp(struct pending_cmd *cmd, void *data) +{ + u8 *status = data; + + cmd_status(cmd->sk, cmd->index, cmd->opcode, *status); + mgmt_pending_remove(cmd); +} + +static u8 mgmt_bredr_support(struct hci_dev *hdev) +{ + if (!lmp_bredr_capable(hdev)) + return MGMT_STATUS_NOT_SUPPORTED; + else if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + return MGMT_STATUS_REJECTED; + else + return MGMT_STATUS_SUCCESS; +} + +static u8 mgmt_le_support(struct hci_dev *hdev) +{ + if (!lmp_le_capable(hdev)) + return MGMT_STATUS_NOT_SUPPORTED; + else if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) + return MGMT_STATUS_REJECTED; + else + return MGMT_STATUS_SUCCESS; +} + +static void set_discoverable_complete(struct hci_dev *hdev, u8 status) +{ + struct pending_cmd *cmd; + struct mgmt_mode *cp; + struct hci_request req; + bool changed; + + BT_DBG("status 0x%02x", status); + + hci_dev_lock(hdev); + + cmd = mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev); + if (!cmd) + goto unlock; + + if (status) { + u8 mgmt_err = mgmt_status(status); + cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err); + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + goto remove_cmd; + } + + cp = cmd->param; + if (cp->val) { + changed = !test_and_set_bit(HCI_DISCOVERABLE, + &hdev->dev_flags); + + if (hdev->discov_timeout > 0) { + int to = msecs_to_jiffies(hdev->discov_timeout * 1000); + queue_delayed_work(hdev->workqueue, &hdev->discov_off, + to); + } + } else { + changed = test_and_clear_bit(HCI_DISCOVERABLE, + &hdev->dev_flags); + } + + send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev); + + if (changed) + new_settings(hdev, cmd->sk); + + /* When the discoverable mode gets changed, make sure + * that class of device has the limited discoverable + * bit correctly set. + */ + hci_req_init(&req, hdev); + update_class(&req); + hci_req_run(&req, NULL); + +remove_cmd: + mgmt_pending_remove(cmd); + +unlock: + hci_dev_unlock(hdev); +} + static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { struct mgmt_cp_set_discoverable *cp = data; struct pending_cmd *cmd; + struct hci_request req; u16 timeout; u8 scan; int err; BT_DBG("request for %s", hdev->name); - if (!lmp_bredr_capable(hdev)) + if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags) && + !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, - MGMT_STATUS_NOT_SUPPORTED); + MGMT_STATUS_REJECTED); - if (cp->val != 0x00 && cp->val != 0x01) + if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02) return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, MGMT_STATUS_INVALID_PARAMS); timeout = __le16_to_cpu(cp->timeout); - if (!cp->val && timeout > 0) + + /* Disabling discoverable requires that no timeout is set, + * and enabling limited discoverable requires a timeout. + */ + if ((cp->val == 0x00 && timeout > 0) || + (cp->val == 0x02 && timeout == 0)) return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE, MGMT_STATUS_INVALID_PARAMS); @@ -931,6 +1191,10 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data, if (!hdev_is_powered(hdev)) { bool changed = false; + /* Setting limited discoverable when powered off is + * not a valid operation since it requires a timeout + * and so no need to check HCI_LIMITED_DISCOVERABLE. + */ if (!!cp->val != test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) { change_bit(HCI_DISCOVERABLE, &hdev->dev_flags); changed = true; @@ -946,16 +1210,20 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data, goto failed; } - if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) { - if (hdev->discov_timeout > 0) { - cancel_delayed_work(&hdev->discov_off); - hdev->discov_timeout = 0; - } + /* If the current mode is the same, then just update the timeout + * value with the new value. And if only the timeout gets updated, + * then no need for any HCI transactions. + */ + if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags) && + (cp->val == 0x02) == test_bit(HCI_LIMITED_DISCOVERABLE, + &hdev->dev_flags)) { + cancel_delayed_work(&hdev->discov_off); + hdev->discov_timeout = timeout; - if (cp->val && timeout > 0) { - hdev->discov_timeout = timeout; + if (cp->val && hdev->discov_timeout > 0) { + int to = msecs_to_jiffies(hdev->discov_timeout * 1000); queue_delayed_work(hdev->workqueue, &hdev->discov_off, - msecs_to_jiffies(hdev->discov_timeout * 1000)); + to); } err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev); @@ -968,20 +1236,66 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data, goto failed; } + /* Cancel any potential discoverable timeout that might be + * still active and store new timeout value. The arming of + * the timeout happens in the complete handler. + */ + cancel_delayed_work(&hdev->discov_off); + hdev->discov_timeout = timeout; + + /* Limited discoverable mode */ + if (cp->val == 0x02) + set_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + else + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + + hci_req_init(&req, hdev); + + /* The procedure for LE-only controllers is much simpler - just + * update the advertising data. + */ + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + goto update_ad; + scan = SCAN_PAGE; - if (cp->val) + if (cp->val) { + struct hci_cp_write_current_iac_lap hci_cp; + + if (cp->val == 0x02) { + /* Limited discoverable mode */ + hci_cp.num_iac = 2; + hci_cp.iac_lap[0] = 0x00; /* LIAC */ + hci_cp.iac_lap[1] = 0x8b; + hci_cp.iac_lap[2] = 0x9e; + hci_cp.iac_lap[3] = 0x33; /* GIAC */ + hci_cp.iac_lap[4] = 0x8b; + hci_cp.iac_lap[5] = 0x9e; + } else { + /* General discoverable mode */ + hci_cp.num_iac = 1; + hci_cp.iac_lap[0] = 0x33; /* GIAC */ + hci_cp.iac_lap[1] = 0x8b; + hci_cp.iac_lap[2] = 0x9e; + } + + hci_req_add(&req, HCI_OP_WRITE_CURRENT_IAC_LAP, + (hci_cp.num_iac * 3) + 1, &hci_cp); + scan |= SCAN_INQUIRY; - else - cancel_delayed_work(&hdev->discov_off); + } else { + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + } + + hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan); - err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); +update_ad: + update_adv_data(&req); + + err = hci_req_run(&req, set_discoverable_complete); if (err < 0) mgmt_pending_remove(cmd); - if (cp->val) - hdev->discov_timeout = timeout; - failed: hci_dev_unlock(hdev); return err; @@ -993,6 +1307,9 @@ static void write_fast_connectable(struct hci_request *req, bool enable) struct hci_cp_write_page_scan_activity acp; u8 type; + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + return; + if (hdev->hci_ver < BLUETOOTH_VER_1_2) return; @@ -1019,9 +1336,55 @@ static void write_fast_connectable(struct hci_request *req, bool enable) hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type); } +static u8 get_adv_type(struct hci_dev *hdev) +{ + struct pending_cmd *cmd; + bool connectable; + + /* If there's a pending mgmt command the flag will not yet have + * it's final value, so check for this first. + */ + cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev); + if (cmd) { + struct mgmt_mode *cp = cmd->param; + connectable = !!cp->val; + } else { + connectable = test_bit(HCI_CONNECTABLE, &hdev->dev_flags); + } + + return connectable ? LE_ADV_IND : LE_ADV_NONCONN_IND; +} + +static void enable_advertising(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + struct hci_cp_le_set_adv_param cp; + u8 enable = 0x01; + + memset(&cp, 0, sizeof(cp)); + cp.min_interval = __constant_cpu_to_le16(0x0800); + cp.max_interval = __constant_cpu_to_le16(0x0800); + cp.type = get_adv_type(hdev); + cp.own_address_type = hdev->own_addr_type; + cp.channel_map = 0x07; + + hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp); + + hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable); +} + +static void disable_advertising(struct hci_request *req) +{ + u8 enable = 0x00; + + hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable); +} + static void set_connectable_complete(struct hci_dev *hdev, u8 status) { struct pending_cmd *cmd; + struct mgmt_mode *cp; + bool changed; BT_DBG("status 0x%02x", status); @@ -1031,14 +1394,56 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status) if (!cmd) goto unlock; + if (status) { + u8 mgmt_err = mgmt_status(status); + cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err); + goto remove_cmd; + } + + cp = cmd->param; + if (cp->val) + changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags); + else + changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); + send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev); + if (changed) + new_settings(hdev, cmd->sk); + +remove_cmd: mgmt_pending_remove(cmd); unlock: hci_dev_unlock(hdev); } +static int set_connectable_update_settings(struct hci_dev *hdev, + struct sock *sk, u8 val) +{ + bool changed = false; + int err; + + if (!!val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) + changed = true; + + if (val) { + set_bit(HCI_CONNECTABLE, &hdev->dev_flags); + } else { + clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); + clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); + } + + err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev); + if (err < 0) + return err; + + if (changed) + return new_settings(hdev, sk); + + return 0; +} + static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { @@ -1050,9 +1455,10 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, BT_DBG("request for %s", hdev->name); - if (!lmp_bredr_capable(hdev)) + if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags) && + !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE, - MGMT_STATUS_NOT_SUPPORTED); + MGMT_STATUS_REJECTED); if (cp->val != 0x00 && cp->val != 0x01) return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE, @@ -1061,25 +1467,7 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, hci_dev_lock(hdev); if (!hdev_is_powered(hdev)) { - bool changed = false; - - if (!!cp->val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) - changed = true; - - if (cp->val) { - set_bit(HCI_CONNECTABLE, &hdev->dev_flags); - } else { - clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); - clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); - } - - err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev); - if (err < 0) - goto failed; - - if (changed) - err = new_settings(hdev, sk); - + err = set_connectable_update_settings(hdev, sk, cp->val); goto failed; } @@ -1090,30 +1478,37 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, goto failed; } - if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) { - err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev); - goto failed; - } - cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len); if (!cmd) { err = -ENOMEM; goto failed; } - if (cp->val) { - scan = SCAN_PAGE; - } else { - scan = 0; + hci_req_init(&req, hdev); - if (test_bit(HCI_ISCAN, &hdev->flags) && - hdev->discov_timeout > 0) - cancel_delayed_work(&hdev->discov_off); - } + /* If BR/EDR is not enabled and we disable advertising as a + * by-product of disabling connectable, we need to update the + * advertising flags. + */ + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { + if (!cp->val) { + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); + } + update_adv_data(&req); + } else if (cp->val != test_bit(HCI_PSCAN, &hdev->flags)) { + if (cp->val) { + scan = SCAN_PAGE; + } else { + scan = 0; - hci_req_init(&req, hdev); + if (test_bit(HCI_ISCAN, &hdev->flags) && + hdev->discov_timeout > 0) + cancel_delayed_work(&hdev->discov_off); + } - hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); + hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); + } /* If we're going from non-connectable to connectable or * vice-versa when fast connectable is enabled ensure that fast @@ -1124,9 +1519,20 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data, if (cp->val || test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags)) write_fast_connectable(&req, false); + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && + hci_conn_num(hdev, LE_LINK) == 0) { + disable_advertising(&req); + enable_advertising(&req); + } + err = hci_req_run(&req, set_connectable_complete); - if (err < 0) + if (err < 0) { mgmt_pending_remove(cmd); + if (err == -ENODATA) + err = set_connectable_update_settings(hdev, sk, + cp->val); + goto failed; + } failed: hci_dev_unlock(hdev); @@ -1137,6 +1543,7 @@ static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { struct mgmt_mode *cp = data; + bool changed; int err; BT_DBG("request for %s", hdev->name); @@ -1148,17 +1555,18 @@ static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data, hci_dev_lock(hdev); if (cp->val) - set_bit(HCI_PAIRABLE, &hdev->dev_flags); + changed = !test_and_set_bit(HCI_PAIRABLE, &hdev->dev_flags); else - clear_bit(HCI_PAIRABLE, &hdev->dev_flags); + changed = test_and_clear_bit(HCI_PAIRABLE, &hdev->dev_flags); err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev); if (err < 0) - goto failed; + goto unlock; - err = new_settings(hdev, sk); + if (changed) + err = new_settings(hdev, sk); -failed: +unlock: hci_dev_unlock(hdev); return err; } @@ -1168,14 +1576,15 @@ static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data, { struct mgmt_mode *cp = data; struct pending_cmd *cmd; - u8 val; + u8 val, status; int err; BT_DBG("request for %s", hdev->name); - if (!lmp_bredr_capable(hdev)) + status = mgmt_bredr_support(hdev); + if (status) return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY, - MGMT_STATUS_NOT_SUPPORTED); + status); if (cp->val != 0x00 && cp->val != 0x01) return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY, @@ -1236,11 +1645,15 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { struct mgmt_mode *cp = data; struct pending_cmd *cmd; - u8 val; + u8 status; int err; BT_DBG("request for %s", hdev->name); + status = mgmt_bredr_support(hdev); + if (status) + return cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, status); + if (!lmp_ssp_capable(hdev)) return cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, MGMT_STATUS_NOT_SUPPORTED); @@ -1251,14 +1664,20 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) hci_dev_lock(hdev); - val = !!cp->val; - if (!hdev_is_powered(hdev)) { - bool changed = false; + bool changed; - if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { - change_bit(HCI_SSP_ENABLED, &hdev->dev_flags); - changed = true; + if (cp->val) { + changed = !test_and_set_bit(HCI_SSP_ENABLED, + &hdev->dev_flags); + } else { + changed = test_and_clear_bit(HCI_SSP_ENABLED, + &hdev->dev_flags); + if (!changed) + changed = test_and_clear_bit(HCI_HS_ENABLED, + &hdev->dev_flags); + else + clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); } err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev); @@ -1271,13 +1690,14 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) goto failed; } - if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) { + if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev) || + mgmt_pending_find(MGMT_OP_SET_HS, hdev)) { err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, MGMT_STATUS_BUSY); goto failed; } - if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) { + if (!!cp->val == test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) { err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev); goto failed; } @@ -1288,7 +1708,7 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) goto failed; } - err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val); + err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val); if (err < 0) { mgmt_pending_remove(cmd); goto failed; @@ -1302,23 +1722,90 @@ failed: static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { struct mgmt_mode *cp = data; + bool changed; + u8 status; + int err; BT_DBG("request for %s", hdev->name); - if (!enable_hs) + status = mgmt_bredr_support(hdev); + if (status) + return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status); + + if (!lmp_ssp_capable(hdev)) return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, MGMT_STATUS_NOT_SUPPORTED); + if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, + MGMT_STATUS_REJECTED); + if (cp->val != 0x00 && cp->val != 0x01) return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, MGMT_STATUS_INVALID_PARAMS); - if (cp->val) - set_bit(HCI_HS_ENABLED, &hdev->dev_flags); - else - clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); + hci_dev_lock(hdev); + + if (cp->val) { + changed = !test_and_set_bit(HCI_HS_ENABLED, &hdev->dev_flags); + } else { + if (hdev_is_powered(hdev)) { + err = cmd_status(sk, hdev->id, MGMT_OP_SET_HS, + MGMT_STATUS_REJECTED); + goto unlock; + } + + changed = test_and_clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); + } - return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev); + err = send_settings_rsp(sk, MGMT_OP_SET_HS, hdev); + if (err < 0) + goto unlock; + + if (changed) + err = new_settings(hdev, sk); + +unlock: + hci_dev_unlock(hdev); + return err; +} + +static void le_enable_complete(struct hci_dev *hdev, u8 status) +{ + struct cmd_lookup match = { NULL, hdev }; + + if (status) { + u8 mgmt_err = mgmt_status(status); + + mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp, + &mgmt_err); + return; + } + + mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match); + + new_settings(hdev, match.sk); + + if (match.sk) + sock_put(match.sk); + + /* Make sure the controller has a good default for + * advertising data. Restrict the update to when LE + * has actually been enabled. During power on, the + * update in powered_update_hci will take care of it. + */ + if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { + struct hci_request req; + + hci_dev_lock(hdev); + + hci_req_init(&req, hdev); + update_adv_data(&req); + update_scan_rsp_data(&req); + hci_req_run(&req, NULL); + + hci_dev_unlock(hdev); + } } static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) @@ -1326,6 +1813,7 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) struct mgmt_mode *cp = data; struct hci_cp_write_le_host_supported hci_cp; struct pending_cmd *cmd; + struct hci_request req; int err; u8 val, enabled; @@ -1340,7 +1828,7 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) MGMT_STATUS_INVALID_PARAMS); /* LE-only devices do not allow toggling LE on/off */ - if (!lmp_bredr_capable(hdev)) + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) return cmd_status(sk, hdev->id, MGMT_OP_SET_LE, MGMT_STATUS_REJECTED); @@ -1357,6 +1845,11 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) changed = true; } + if (!val && test_bit(HCI_ADVERTISING, &hdev->dev_flags)) { + clear_bit(HCI_ADVERTISING, &hdev->dev_flags); + changed = true; + } + err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev); if (err < 0) goto unlock; @@ -1367,7 +1860,8 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) goto unlock; } - if (mgmt_pending_find(MGMT_OP_SET_LE, hdev)) { + if (mgmt_pending_find(MGMT_OP_SET_LE, hdev) || + mgmt_pending_find(MGMT_OP_SET_ADVERTISING, hdev)) { err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE, MGMT_STATUS_BUSY); goto unlock; @@ -1379,15 +1873,22 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) goto unlock; } + hci_req_init(&req, hdev); + memset(&hci_cp, 0, sizeof(hci_cp)); if (val) { hci_cp.le = val; hci_cp.simul = lmp_le_br_capable(hdev); + } else { + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) + disable_advertising(&req); } - err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp), - &hci_cp); + hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp), + &hci_cp); + + err = hci_req_run(&req, le_enable_complete); if (err < 0) mgmt_pending_remove(cmd); @@ -1706,6 +2207,12 @@ static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data, u16 key_count, expected_len; int i; + BT_DBG("request for %s", hdev->name); + + if (!lmp_bredr_capable(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, + MGMT_STATUS_NOT_SUPPORTED); + key_count = __le16_to_cpu(cp->key_count); expected_len = sizeof(*cp) + key_count * @@ -2515,8 +3022,11 @@ static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data, update_eir(&req); } + /* The name is stored in the scan response data and so + * no need to udpate the advertising data here. + */ if (lmp_le_capable(hdev)) - hci_update_ad(&req); + update_scan_rsp_data(&req); err = hci_req_run(&req, set_name_complete); if (err < 0) @@ -2685,6 +3195,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, struct hci_request req; /* General inquiry access code (GIAC) */ u8 lap[3] = { 0x33, 0x8b, 0x9e }; + u8 status; int err; BT_DBG("%s", hdev->name); @@ -2721,9 +3232,10 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, switch (hdev->discovery.type) { case DISCOV_TYPE_BREDR: - if (!lmp_bredr_capable(hdev)) { + status = mgmt_bredr_support(hdev); + if (status) { err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, - MGMT_STATUS_NOT_SUPPORTED); + status); mgmt_pending_remove(cmd); goto failed; } @@ -2745,22 +3257,23 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, case DISCOV_TYPE_LE: case DISCOV_TYPE_INTERLEAVED: - if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { + status = mgmt_le_support(hdev); + if (status) { err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, - MGMT_STATUS_NOT_SUPPORTED); + status); mgmt_pending_remove(cmd); goto failed; } if (hdev->discovery.type == DISCOV_TYPE_INTERLEAVED && - !lmp_bredr_capable(hdev)) { + !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, MGMT_STATUS_NOT_SUPPORTED); mgmt_pending_remove(cmd); goto failed; } - if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) { + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) { err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY, MGMT_STATUS_REJECTED); mgmt_pending_remove(cmd); @@ -2778,6 +3291,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev, param_cp.type = LE_SCAN_ACTIVE; param_cp.interval = cpu_to_le16(DISCOV_LE_SCAN_INT); param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN); + param_cp.own_address_type = hdev->own_addr_type; hci_req_add(&req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp), ¶m_cp); @@ -3065,6 +3579,186 @@ static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data, return err; } +static void set_advertising_complete(struct hci_dev *hdev, u8 status) +{ + struct cmd_lookup match = { NULL, hdev }; + + if (status) { + u8 mgmt_err = mgmt_status(status); + + mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, + cmd_status_rsp, &mgmt_err); + return; + } + + mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp, + &match); + + new_settings(hdev, match.sk); + + if (match.sk) + sock_put(match.sk); +} + +static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, + u16 len) +{ + struct mgmt_mode *cp = data; + struct pending_cmd *cmd; + struct hci_request req; + u8 val, enabled, status; + int err; + + BT_DBG("request for %s", hdev->name); + + status = mgmt_le_support(hdev); + if (status) + return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING, + status); + + if (cp->val != 0x00 && cp->val != 0x01) + return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING, + MGMT_STATUS_INVALID_PARAMS); + + hci_dev_lock(hdev); + + val = !!cp->val; + enabled = test_bit(HCI_ADVERTISING, &hdev->dev_flags); + + /* The following conditions are ones which mean that we should + * not do any HCI communication but directly send a mgmt + * response to user space (after toggling the flag if + * necessary). + */ + if (!hdev_is_powered(hdev) || val == enabled || + hci_conn_num(hdev, LE_LINK) > 0) { + bool changed = false; + + if (val != test_bit(HCI_ADVERTISING, &hdev->dev_flags)) { + change_bit(HCI_ADVERTISING, &hdev->dev_flags); + changed = true; + } + + err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev); + if (err < 0) + goto unlock; + + if (changed) + err = new_settings(hdev, sk); + + goto unlock; + } + + if (mgmt_pending_find(MGMT_OP_SET_ADVERTISING, hdev) || + mgmt_pending_find(MGMT_OP_SET_LE, hdev)) { + err = cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING, + MGMT_STATUS_BUSY); + goto unlock; + } + + cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len); + if (!cmd) { + err = -ENOMEM; + goto unlock; + } + + hci_req_init(&req, hdev); + + if (val) + enable_advertising(&req); + else + disable_advertising(&req); + + err = hci_req_run(&req, set_advertising_complete); + if (err < 0) + mgmt_pending_remove(cmd); + +unlock: + hci_dev_unlock(hdev); + return err; +} + +static int set_static_address(struct sock *sk, struct hci_dev *hdev, + void *data, u16 len) +{ + struct mgmt_cp_set_static_address *cp = data; + int err; + + BT_DBG("%s", hdev->name); + + if (!lmp_le_capable(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS, + MGMT_STATUS_NOT_SUPPORTED); + + if (hdev_is_powered(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS, + MGMT_STATUS_REJECTED); + + if (bacmp(&cp->bdaddr, BDADDR_ANY)) { + if (!bacmp(&cp->bdaddr, BDADDR_NONE)) + return cmd_status(sk, hdev->id, + MGMT_OP_SET_STATIC_ADDRESS, + MGMT_STATUS_INVALID_PARAMS); + + /* Two most significant bits shall be set */ + if ((cp->bdaddr.b[5] & 0xc0) != 0xc0) + return cmd_status(sk, hdev->id, + MGMT_OP_SET_STATIC_ADDRESS, + MGMT_STATUS_INVALID_PARAMS); + } + + hci_dev_lock(hdev); + + bacpy(&hdev->static_addr, &cp->bdaddr); + + err = cmd_complete(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS, 0, NULL, 0); + + hci_dev_unlock(hdev); + + return err; +} + +static int set_scan_params(struct sock *sk, struct hci_dev *hdev, + void *data, u16 len) +{ + struct mgmt_cp_set_scan_params *cp = data; + __u16 interval, window; + int err; + + BT_DBG("%s", hdev->name); + + if (!lmp_le_capable(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, + MGMT_STATUS_NOT_SUPPORTED); + + interval = __le16_to_cpu(cp->interval); + + if (interval < 0x0004 || interval > 0x4000) + return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, + MGMT_STATUS_INVALID_PARAMS); + + window = __le16_to_cpu(cp->window); + + if (window < 0x0004 || window > 0x4000) + return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, + MGMT_STATUS_INVALID_PARAMS); + + if (window > interval) + return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, + MGMT_STATUS_INVALID_PARAMS); + + hci_dev_lock(hdev); + + hdev->le_scan_interval = interval; + hdev->le_scan_window = window; + + err = cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0, NULL, 0); + + hci_dev_unlock(hdev); + + return err; +} + static void fast_connectable_complete(struct hci_dev *hdev, u8 status) { struct pending_cmd *cmd; @@ -3108,7 +3802,8 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev, BT_DBG("%s", hdev->name); - if (!lmp_bredr_capable(hdev) || hdev->hci_ver < BLUETOOTH_VER_1_2) + if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) || + hdev->hci_ver < BLUETOOTH_VER_1_2) return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE, MGMT_STATUS_NOT_SUPPORTED); @@ -3162,6 +3857,148 @@ unlock: return err; } +static void set_bredr_scan(struct hci_request *req) +{ + struct hci_dev *hdev = req->hdev; + u8 scan = 0; + + /* Ensure that fast connectable is disabled. This function will + * not do anything if the page scan parameters are already what + * they should be. + */ + write_fast_connectable(req, false); + + if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) + scan |= SCAN_PAGE; + if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) + scan |= SCAN_INQUIRY; + + if (scan) + hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); +} + +static void set_bredr_complete(struct hci_dev *hdev, u8 status) +{ + struct pending_cmd *cmd; + + BT_DBG("status 0x%02x", status); + + hci_dev_lock(hdev); + + cmd = mgmt_pending_find(MGMT_OP_SET_BREDR, hdev); + if (!cmd) + goto unlock; + + if (status) { + u8 mgmt_err = mgmt_status(status); + + /* We need to restore the flag if related HCI commands + * failed. + */ + clear_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); + + cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err); + } else { + send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev); + new_settings(hdev, cmd->sk); + } + + mgmt_pending_remove(cmd); + +unlock: + hci_dev_unlock(hdev); +} + +static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) +{ + struct mgmt_mode *cp = data; + struct pending_cmd *cmd; + struct hci_request req; + int err; + + BT_DBG("request for %s", hdev->name); + + if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, + MGMT_STATUS_NOT_SUPPORTED); + + if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) + return cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, + MGMT_STATUS_REJECTED); + + if (cp->val != 0x00 && cp->val != 0x01) + return cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, + MGMT_STATUS_INVALID_PARAMS); + + hci_dev_lock(hdev); + + if (cp->val == test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { + err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev); + goto unlock; + } + + if (!hdev_is_powered(hdev)) { + if (!cp->val) { + clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); + clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags); + clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags); + clear_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags); + clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); + } + + change_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); + + err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev); + if (err < 0) + goto unlock; + + err = new_settings(hdev, sk); + goto unlock; + } + + /* Reject disabling when powered on */ + if (!cp->val) { + err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, + MGMT_STATUS_REJECTED); + goto unlock; + } + + if (mgmt_pending_find(MGMT_OP_SET_BREDR, hdev)) { + err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR, + MGMT_STATUS_BUSY); + goto unlock; + } + + cmd = mgmt_pending_add(sk, MGMT_OP_SET_BREDR, hdev, data, len); + if (!cmd) { + err = -ENOMEM; + goto unlock; + } + + /* We need to flip the bit already here so that update_adv_data + * generates the correct flags. + */ + set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags); + + hci_req_init(&req, hdev); + + if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) + set_bredr_scan(&req); + + /* Since only the advertising data flags will change, there + * is no need to update the scan response data. + */ + update_adv_data(&req); + + err = hci_req_run(&req, set_bredr_complete); + if (err < 0) + mgmt_pending_remove(cmd); + +unlock: + hci_dev_unlock(hdev); + return err; +} + static bool ltk_is_valid(struct mgmt_ltk_info *key) { if (key->authenticated != 0x00 && key->authenticated != 0x01) @@ -3180,6 +4017,12 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev, u16 key_count, expected_len; int i, err; + BT_DBG("request for %s", hdev->name); + + if (!lmp_le_capable(hdev)) + return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, + MGMT_STATUS_NOT_SUPPORTED); + key_count = __le16_to_cpu(cp->key_count); expected_len = sizeof(*cp) + key_count * @@ -3208,15 +4051,19 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev, for (i = 0; i < key_count; i++) { struct mgmt_ltk_info *key = &cp->keys[i]; - u8 type; + u8 type, addr_type; + + if (key->addr.type == BDADDR_LE_PUBLIC) + addr_type = ADDR_LE_DEV_PUBLIC; + else + addr_type = ADDR_LE_DEV_RANDOM; if (key->master) type = HCI_SMP_LTK; else type = HCI_SMP_LTK_SLAVE; - hci_add_ltk(hdev, &key->addr.bdaddr, - bdaddr_to_le(key->addr.type), + hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type, 0, key->authenticated, key->val, key->enc_size, key->ediv, key->rand); } @@ -3276,6 +4123,10 @@ static const struct mgmt_handler { { block_device, false, MGMT_BLOCK_DEVICE_SIZE }, { unblock_device, false, MGMT_UNBLOCK_DEVICE_SIZE }, { set_device_id, false, MGMT_SET_DEVICE_ID_SIZE }, + { set_advertising, false, MGMT_SETTING_SIZE }, + { set_bredr, false, MGMT_SETTING_SIZE }, + { set_static_address, false, MGMT_SET_STATIC_ADDRESS_SIZE }, + { set_scan_params, false, MGMT_SET_SCAN_PARAMS_SIZE }, }; @@ -3320,6 +4171,13 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen) MGMT_STATUS_INVALID_INDEX); goto done; } + + if (test_bit(HCI_SETUP, &hdev->dev_flags) || + test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) { + err = cmd_status(sk, index, opcode, + MGMT_STATUS_INVALID_INDEX); + goto done; + } } if (opcode >= ARRAY_SIZE(mgmt_handlers) || @@ -3365,74 +4223,24 @@ done: return err; } -static void cmd_status_rsp(struct pending_cmd *cmd, void *data) -{ - u8 *status = data; - - cmd_status(cmd->sk, cmd->index, cmd->opcode, *status); - mgmt_pending_remove(cmd); -} - -int mgmt_index_added(struct hci_dev *hdev) +void mgmt_index_added(struct hci_dev *hdev) { - if (!mgmt_valid_hdev(hdev)) - return -ENOTSUPP; + if (hdev->dev_type != HCI_BREDR) + return; - return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL); + mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL); } -int mgmt_index_removed(struct hci_dev *hdev) +void mgmt_index_removed(struct hci_dev *hdev) { u8 status = MGMT_STATUS_INVALID_INDEX; - if (!mgmt_valid_hdev(hdev)) - return -ENOTSUPP; + if (hdev->dev_type != HCI_BREDR) + return; mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status); - return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL); -} - -struct cmd_lookup { - struct sock *sk; - struct hci_dev *hdev; - u8 mgmt_status; -}; - -static void settings_rsp(struct pending_cmd *cmd, void *data) -{ - struct cmd_lookup *match = data; - - send_settings_rsp(cmd->sk, cmd->opcode, match->hdev); - - list_del(&cmd->list); - - if (match->sk == NULL) { - match->sk = cmd->sk; - sock_hold(match->sk); - } - - mgmt_pending_free(cmd); -} - -static void set_bredr_scan(struct hci_request *req) -{ - struct hci_dev *hdev = req->hdev; - u8 scan = 0; - - /* Ensure that fast connectable is disabled. This function will - * not do anything if the page scan parameters are already what - * they should be. - */ - write_fast_connectable(req, false); - - if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) - scan |= SCAN_PAGE; - if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) - scan |= SCAN_INQUIRY; - - if (scan) - hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); + mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL); } static void powered_complete(struct hci_dev *hdev, u8 status) @@ -3483,13 +4291,33 @@ static int powered_update_hci(struct hci_dev *hdev) sizeof(cp), &cp); } + if (lmp_le_capable(hdev)) { + /* Set random address to static address if configured */ + if (bacmp(&hdev->static_addr, BDADDR_ANY)) + hci_req_add(&req, HCI_OP_LE_SET_RANDOM_ADDR, 6, + &hdev->static_addr); + + /* Make sure the controller has a good default for + * advertising data. This also applies to the case + * where BR/EDR was toggled during the AUTO_OFF phase. + */ + if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) { + update_adv_data(&req); + update_scan_rsp_data(&req); + } + + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) + enable_advertising(&req); + } + link_sec = test_bit(HCI_LINK_SECURITY, &hdev->dev_flags); if (link_sec != test_bit(HCI_AUTH, &hdev->flags)) hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE, sizeof(link_sec), &link_sec); if (lmp_bredr_capable(hdev)) { - set_bredr_scan(&req); + if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) + set_bredr_scan(&req); update_class(&req); update_name(&req); update_eir(&req); @@ -3533,76 +4361,110 @@ new_settings: return err; } -int mgmt_set_powered_failed(struct hci_dev *hdev, int err) +void mgmt_set_powered_failed(struct hci_dev *hdev, int err) { struct pending_cmd *cmd; u8 status; cmd = mgmt_pending_find(MGMT_OP_SET_POWERED, hdev); if (!cmd) - return -ENOENT; + return; if (err == -ERFKILL) status = MGMT_STATUS_RFKILLED; else status = MGMT_STATUS_FAILED; - err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status); + cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status); mgmt_pending_remove(cmd); +} - return err; +void mgmt_discoverable_timeout(struct hci_dev *hdev) +{ + struct hci_request req; + + hci_dev_lock(hdev); + + /* When discoverable timeout triggers, then just make sure + * the limited discoverable flag is cleared. Even in the case + * of a timeout triggered from general discoverable, it is + * safe to unconditionally clear the flag. + */ + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); + + hci_req_init(&req, hdev); + if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) { + u8 scan = SCAN_PAGE; + hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, + sizeof(scan), &scan); + } + update_class(&req); + update_adv_data(&req); + hci_req_run(&req, NULL); + + hdev->discov_timeout = 0; + + new_settings(hdev, NULL); + + hci_dev_unlock(hdev); } -int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable) +void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable) { - struct cmd_lookup match = { NULL, hdev }; - bool changed = false; - int err = 0; + bool changed; + + /* Nothing needed here if there's a pending command since that + * commands request completion callback takes care of everything + * necessary. + */ + if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev)) + return; if (discoverable) { - if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) - changed = true; + changed = !test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags); } else { - if (test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) - changed = true; + clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags); + changed = test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags); } - mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp, - &match); + if (changed) { + struct hci_request req; - if (changed) - err = new_settings(hdev, match.sk); - - if (match.sk) - sock_put(match.sk); + /* In case this change in discoverable was triggered by + * a disabling of connectable there could be a need to + * update the advertising flags. + */ + hci_req_init(&req, hdev); + update_adv_data(&req); + hci_req_run(&req, NULL); - return err; + new_settings(hdev, NULL); + } } -int mgmt_connectable(struct hci_dev *hdev, u8 connectable) +void mgmt_connectable(struct hci_dev *hdev, u8 connectable) { - struct pending_cmd *cmd; - bool changed = false; - int err = 0; + bool changed; - if (connectable) { - if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags)) - changed = true; - } else { - if (test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags)) - changed = true; - } + /* Nothing needed here if there's a pending command since that + * commands request completion callback takes care of everything + * necessary. + */ + if (mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) + return; - cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev); + if (connectable) + changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags); + else + changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags); if (changed) - err = new_settings(hdev, cmd ? cmd->sk : NULL); - - return err; + new_settings(hdev, NULL); } -int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status) +void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status) { u8 mgmt_err = mgmt_status(status); @@ -3613,12 +4475,10 @@ int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status) if (scan & SCAN_INQUIRY) mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, cmd_status_rsp, &mgmt_err); - - return 0; } -int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, - bool persistent) +void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, + bool persistent) { struct mgmt_ev_new_link_key ev; @@ -3631,10 +4491,10 @@ int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE); ev.key.pin_len = key->pin_len; - return mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL); + mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL); } -int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent) +void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent) { struct mgmt_ev_new_long_term_key ev; @@ -3653,13 +4513,23 @@ int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent) memcpy(ev.key.rand, key->rand, sizeof(key->rand)); memcpy(ev.key.val, key->val, sizeof(key->val)); - return mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), - NULL); + mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL); +} + +static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, + u8 data_len) +{ + eir[eir_len++] = sizeof(type) + data_len; + eir[eir_len++] = type; + memcpy(&eir[eir_len], data, data_len); + eir_len += data_len; + + return eir_len; } -int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, u32 flags, u8 *name, u8 name_len, - u8 *dev_class) +void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u32 flags, u8 *name, u8 name_len, + u8 *dev_class) { char buf[512]; struct mgmt_ev_device_connected *ev = (void *) buf; @@ -3680,8 +4550,8 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, ev->eir_len = cpu_to_le16(eir_len); - return mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf, - sizeof(*ev) + eir_len, NULL); + mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf, + sizeof(*ev) + eir_len, NULL); } static void disconnect_rsp(struct pending_cmd *cmd, void *data) @@ -3719,12 +4589,11 @@ static void unpair_device_rsp(struct pending_cmd *cmd, void *data) mgmt_pending_remove(cmd); } -int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 link_type, u8 addr_type, u8 reason) +void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 link_type, u8 addr_type, u8 reason) { struct mgmt_ev_device_disconnected ev; struct sock *sk = NULL; - int err; mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk); @@ -3732,45 +4601,39 @@ int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, ev.addr.type = link_to_bdaddr(link_type, addr_type); ev.reason = reason; - err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), - sk); + mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk); if (sk) sock_put(sk); mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp, hdev); - - return err; } -int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 link_type, u8 addr_type, u8 status) +void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 link_type, u8 addr_type, u8 status) { struct mgmt_rp_disconnect rp; struct pending_cmd *cmd; - int err; mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp, hdev); cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev); if (!cmd) - return -ENOENT; + return; bacpy(&rp.addr.bdaddr, bdaddr); rp.addr.type = link_to_bdaddr(link_type, addr_type); - err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, - mgmt_status(status), &rp, sizeof(rp)); + cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT, + mgmt_status(status), &rp, sizeof(rp)); mgmt_pending_remove(cmd); - - return err; } -int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, u8 status) +void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 status) { struct mgmt_ev_connect_failed ev; @@ -3778,10 +4641,10 @@ int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, ev.addr.type = link_to_bdaddr(link_type, addr_type); ev.status = mgmt_status(status); - return mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL); + mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL); } -int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure) +void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure) { struct mgmt_ev_pin_code_request ev; @@ -3789,52 +4652,45 @@ int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure) ev.addr.type = BDADDR_BREDR; ev.secure = secure; - return mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), - NULL); + mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL); } -int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 status) +void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 status) { struct pending_cmd *cmd; struct mgmt_rp_pin_code_reply rp; - int err; cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_REPLY, hdev); if (!cmd) - return -ENOENT; + return; bacpy(&rp.addr.bdaddr, bdaddr); rp.addr.type = BDADDR_BREDR; - err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY, - mgmt_status(status), &rp, sizeof(rp)); + cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY, + mgmt_status(status), &rp, sizeof(rp)); mgmt_pending_remove(cmd); - - return err; } -int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, - u8 status) +void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 status) { struct pending_cmd *cmd; struct mgmt_rp_pin_code_reply rp; - int err; cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev); if (!cmd) - return -ENOENT; + return; bacpy(&rp.addr.bdaddr, bdaddr); rp.addr.type = BDADDR_BREDR; - err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY, - mgmt_status(status), &rp, sizeof(rp)); + cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY, + mgmt_status(status), &rp, sizeof(rp)); mgmt_pending_remove(cmd); - - return err; } int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, @@ -3936,8 +4792,8 @@ int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL); } -int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, u8 status) +void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 status) { struct mgmt_ev_auth_failed ev; @@ -3945,40 +4801,36 @@ int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, ev.addr.type = link_to_bdaddr(link_type, addr_type); ev.status = mgmt_status(status); - return mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL); + mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL); } -int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status) +void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status) { struct cmd_lookup match = { NULL, hdev }; - bool changed = false; - int err = 0; + bool changed; if (status) { u8 mgmt_err = mgmt_status(status); mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, cmd_status_rsp, &mgmt_err); - return 0; + return; } - if (test_bit(HCI_AUTH, &hdev->flags)) { - if (!test_and_set_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) - changed = true; - } else { - if (test_and_clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags)) - changed = true; - } + if (test_bit(HCI_AUTH, &hdev->flags)) + changed = !test_and_set_bit(HCI_LINK_SECURITY, + &hdev->dev_flags); + else + changed = test_and_clear_bit(HCI_LINK_SECURITY, + &hdev->dev_flags); mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp, &match); if (changed) - err = new_settings(hdev, match.sk); + new_settings(hdev, match.sk); if (match.sk) sock_put(match.sk); - - return err; } static void clear_eir(struct hci_request *req) @@ -3996,38 +4848,41 @@ static void clear_eir(struct hci_request *req) hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp); } -int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status) +void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status) { struct cmd_lookup match = { NULL, hdev }; struct hci_request req; bool changed = false; - int err = 0; if (status) { u8 mgmt_err = mgmt_status(status); if (enable && test_and_clear_bit(HCI_SSP_ENABLED, - &hdev->dev_flags)) - err = new_settings(hdev, NULL); + &hdev->dev_flags)) { + clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); + new_settings(hdev, NULL); + } mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp, &mgmt_err); - - return err; + return; } if (enable) { - if (!test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) - changed = true; + changed = !test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags); } else { - if (test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) - changed = true; + changed = test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags); + if (!changed) + changed = test_and_clear_bit(HCI_HS_ENABLED, + &hdev->dev_flags); + else + clear_bit(HCI_HS_ENABLED, &hdev->dev_flags); } mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match); if (changed) - err = new_settings(hdev, match.sk); + new_settings(hdev, match.sk); if (match.sk) sock_put(match.sk); @@ -4040,8 +4895,6 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status) clear_eir(&req); hci_req_run(&req, NULL); - - return err; } static void sk_lookup(struct pending_cmd *cmd, void *data) @@ -4054,33 +4907,30 @@ static void sk_lookup(struct pending_cmd *cmd, void *data) } } -int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, - u8 status) +void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, + u8 status) { struct cmd_lookup match = { NULL, hdev, mgmt_status(status) }; - int err = 0; mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match); mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match); mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match); if (!status) - err = mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class, - 3, NULL); + mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class, 3, + NULL); if (match.sk) sock_put(match.sk); - - return err; } -int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status) +void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status) { struct mgmt_cp_set_local_name ev; struct pending_cmd *cmd; if (status) - return 0; + return; memset(&ev, 0, sizeof(ev)); memcpy(ev.name, name, HCI_MAX_NAME_LENGTH); @@ -4094,96 +4944,54 @@ int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status) * HCI dev don't send any mgmt signals. */ if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) - return 0; + return; } - return mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev), - cmd ? cmd->sk : NULL); + mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev), + cmd ? cmd->sk : NULL); } -int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, - u8 *randomizer, u8 status) +void mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, + u8 *randomizer, u8 status) { struct pending_cmd *cmd; - int err; BT_DBG("%s status %u", hdev->name, status); cmd = mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev); if (!cmd) - return -ENOENT; + return; if (status) { - err = cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, - mgmt_status(status)); + cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, + mgmt_status(status)); } else { struct mgmt_rp_read_local_oob_data rp; memcpy(rp.hash, hash, sizeof(rp.hash)); memcpy(rp.randomizer, randomizer, sizeof(rp.randomizer)); - err = cmd_complete(cmd->sk, hdev->id, - MGMT_OP_READ_LOCAL_OOB_DATA, 0, &rp, - sizeof(rp)); + cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, + 0, &rp, sizeof(rp)); } mgmt_pending_remove(cmd); - - return err; } -int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status) -{ - struct cmd_lookup match = { NULL, hdev }; - bool changed = false; - int err = 0; - - if (status) { - u8 mgmt_err = mgmt_status(status); - - if (enable && test_and_clear_bit(HCI_LE_ENABLED, - &hdev->dev_flags)) - err = new_settings(hdev, NULL); - - mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp, - &mgmt_err); - - return err; - } - - if (enable) { - if (!test_and_set_bit(HCI_LE_ENABLED, &hdev->dev_flags)) - changed = true; - } else { - if (test_and_clear_bit(HCI_LE_ENABLED, &hdev->dev_flags)) - changed = true; - } - - mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match); - - if (changed) - err = new_settings(hdev, match.sk); - - if (match.sk) - sock_put(match.sk); - - return err; -} - -int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8 - ssp, u8 *eir, u16 eir_len) +void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8 + ssp, u8 *eir, u16 eir_len) { char buf[512]; struct mgmt_ev_device_found *ev = (void *) buf; size_t ev_size; if (!hci_discovery_active(hdev)) - return -EPERM; + return; /* Leave 5 bytes for a potential CoD field */ if (sizeof(*ev) + eir_len + 5 > sizeof(buf)) - return -EINVAL; + return; memset(buf, 0, sizeof(buf)); @@ -4205,11 +5013,11 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, ev->eir_len = cpu_to_le16(eir_len); ev_size = sizeof(*ev) + eir_len; - return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL); + mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL); } -int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, - u8 addr_type, s8 rssi, u8 *name, u8 name_len) +void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, s8 rssi, u8 *name, u8 name_len) { struct mgmt_ev_device_found *ev; char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2]; @@ -4228,11 +5036,10 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, ev->eir_len = cpu_to_le16(eir_len); - return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, - sizeof(*ev) + eir_len, NULL); + mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL); } -int mgmt_discovering(struct hci_dev *hdev, u8 discovering) +void mgmt_discovering(struct hci_dev *hdev, u8 discovering) { struct mgmt_ev_discovering ev; struct pending_cmd *cmd; @@ -4256,7 +5063,7 @@ int mgmt_discovering(struct hci_dev *hdev, u8 discovering) ev.type = hdev->discovery.type; ev.discovering = discovering; - return mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL); + mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL); } int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) @@ -4287,5 +5094,35 @@ int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type) cmd ? cmd->sk : NULL); } -module_param(enable_hs, bool, 0644); -MODULE_PARM_DESC(enable_hs, "Enable High Speed support"); +static void adv_enable_complete(struct hci_dev *hdev, u8 status) +{ + BT_DBG("%s status %u", hdev->name, status); + + /* Clear the advertising mgmt setting if we failed to re-enable it */ + if (status) { + clear_bit(HCI_ADVERTISING, &hdev->dev_flags); + new_settings(hdev, NULL); + } +} + +void mgmt_reenable_advertising(struct hci_dev *hdev) +{ + struct hci_request req; + + if (hci_conn_num(hdev, LE_LINK) > 0) + return; + + if (!test_bit(HCI_ADVERTISING, &hdev->dev_flags)) + return; + + hci_req_init(&req, hdev); + enable_advertising(&req); + + /* If this fails we have no option but to let user space know + * that we've disabled advertising. + */ + if (hci_req_run(&req, adv_enable_complete) < 0) { + clear_bit(HCI_ADVERTISING, &hdev->dev_flags); + new_settings(hdev, NULL); + } +} diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index ca957d34b0c..94d06cbfbc1 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -641,13 +641,13 @@ static struct rfcomm_session *rfcomm_session_get(bdaddr_t *src, bdaddr_t *dst) { struct rfcomm_session *s; struct list_head *p, *n; - struct bt_sock *sk; + struct l2cap_chan *chan; list_for_each_safe(p, n, &session_list) { s = list_entry(p, struct rfcomm_session, list); - sk = bt_sk(s->sock->sk); + chan = l2cap_pi(s->sock->sk)->chan; - if ((!bacmp(src, BDADDR_ANY) || !bacmp(&sk->src, src)) && - !bacmp(&sk->dst, dst)) + if ((!bacmp(src, BDADDR_ANY) || !bacmp(&chan->src, src)) && + !bacmp(&chan->dst, dst)) return s; } return NULL; @@ -732,11 +732,11 @@ failed: void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst) { - struct sock *sk = s->sock->sk; + struct l2cap_chan *chan = l2cap_pi(s->sock->sk)->chan; if (src) - bacpy(src, &bt_sk(sk)->src); + bacpy(src, &chan->src); if (dst) - bacpy(dst, &bt_sk(sk)->dst); + bacpy(dst, &chan->dst); } /* ---- RFCOMM frame sending ---- */ @@ -2112,12 +2112,11 @@ static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x) rfcomm_lock(); list_for_each_entry(s, &session_list, list) { + struct l2cap_chan *chan = l2cap_pi(s->sock->sk)->chan; struct rfcomm_dlc *d; list_for_each_entry(d, &s->dlcs, list) { - struct sock *sk = s->sock->sk; - seq_printf(f, "%pMR %pMR %ld %d %d %d %d\n", - &bt_sk(sk)->src, &bt_sk(sk)->dst, + &chan->src, &chan->dst, d->state, d->dlci, d->mtu, d->rx_credits, d->tx_credits); } @@ -2155,13 +2154,6 @@ static int __init rfcomm_init(void) goto unregister; } - if (bt_debugfs) { - rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444, - bt_debugfs, NULL, &rfcomm_dlc_debugfs_fops); - if (!rfcomm_dlc_debugfs) - BT_ERR("Failed to create RFCOMM debug file"); - } - err = rfcomm_init_ttys(); if (err < 0) goto stop; @@ -2172,6 +2164,13 @@ static int __init rfcomm_init(void) BT_INFO("RFCOMM ver %s", VERSION); + if (IS_ERR_OR_NULL(bt_debugfs)) + return 0; + + rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444, + bt_debugfs, NULL, + &rfcomm_dlc_debugfs_fops); + return 0; cleanup: diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index 30b3721dc6d..c4d3d423f89 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -87,7 +87,8 @@ static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err) parent->sk_data_ready(parent, 0); } else { if (d->state == BT_CONNECTED) - rfcomm_session_getaddr(d->session, &bt_sk(sk)->src, NULL); + rfcomm_session_getaddr(d->session, + &rfcomm_pi(sk)->src, NULL); sk->sk_state_change(sk); } @@ -110,7 +111,7 @@ static struct sock *__rfcomm_get_sock_by_addr(u8 channel, bdaddr_t *src) sk_for_each(sk, &rfcomm_sk_list.head) { if (rfcomm_pi(sk)->channel == channel && - !bacmp(&bt_sk(sk)->src, src)) + !bacmp(&rfcomm_pi(sk)->src, src)) break; } @@ -132,11 +133,11 @@ static struct sock *rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t * if (rfcomm_pi(sk)->channel == channel) { /* Exact match. */ - if (!bacmp(&bt_sk(sk)->src, src)) + if (!bacmp(&rfcomm_pi(sk)->src, src)) break; /* Closest match */ - if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) + if (!bacmp(&rfcomm_pi(sk)->src, BDADDR_ANY)) sk1 = sk; } } @@ -355,7 +356,7 @@ static int rfcomm_sock_bind(struct socket *sock, struct sockaddr *addr, int addr err = -EADDRINUSE; } else { /* Save source address */ - bacpy(&bt_sk(sk)->src, &sa->rc_bdaddr); + bacpy(&rfcomm_pi(sk)->src, &sa->rc_bdaddr); rfcomm_pi(sk)->channel = sa->rc_channel; sk->sk_state = BT_BOUND; } @@ -393,13 +394,14 @@ static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int a } sk->sk_state = BT_CONNECT; - bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr); + bacpy(&rfcomm_pi(sk)->dst, &sa->rc_bdaddr); rfcomm_pi(sk)->channel = sa->rc_channel; d->sec_level = rfcomm_pi(sk)->sec_level; d->role_switch = rfcomm_pi(sk)->role_switch; - err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel); + err = rfcomm_dlc_open(d, &rfcomm_pi(sk)->src, &sa->rc_bdaddr, + sa->rc_channel); if (!err) err = bt_sock_wait_state(sk, BT_CONNECTED, sock_sndtimeo(sk, flags & O_NONBLOCK)); @@ -429,7 +431,7 @@ static int rfcomm_sock_listen(struct socket *sock, int backlog) } if (!rfcomm_pi(sk)->channel) { - bdaddr_t *src = &bt_sk(sk)->src; + bdaddr_t *src = &rfcomm_pi(sk)->src; u8 channel; err = -EINVAL; @@ -530,9 +532,9 @@ static int rfcomm_sock_getname(struct socket *sock, struct sockaddr *addr, int * sa->rc_family = AF_BLUETOOTH; sa->rc_channel = rfcomm_pi(sk)->channel; if (peer) - bacpy(&sa->rc_bdaddr, &bt_sk(sk)->dst); + bacpy(&sa->rc_bdaddr, &rfcomm_pi(sk)->dst); else - bacpy(&sa->rc_bdaddr, &bt_sk(sk)->src); + bacpy(&sa->rc_bdaddr, &rfcomm_pi(sk)->src); *len = sizeof(struct sockaddr_rc); return 0; @@ -544,7 +546,7 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct sock *sk = sock->sk; struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc; struct sk_buff *skb; - int sent = 0; + int sent; if (test_bit(RFCOMM_DEFER_SETUP, &d->flags)) return -ENOTCONN; @@ -559,6 +561,10 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock, lock_sock(sk); + sent = bt_sock_wait_ready(sk, msg->msg_flags); + if (sent) + goto done; + while (len) { size_t size = min_t(size_t, len, d->mtu); int err; @@ -594,6 +600,7 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock, len -= size; } +done: release_sock(sk); return sent; @@ -946,8 +953,8 @@ int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc * bt_sock_reclassify_lock(sk, BTPROTO_RFCOMM); rfcomm_sock_init(sk, parent); - bacpy(&bt_sk(sk)->src, &src); - bacpy(&bt_sk(sk)->dst, &dst); + bacpy(&rfcomm_pi(sk)->src, &src); + bacpy(&rfcomm_pi(sk)->dst, &dst); rfcomm_pi(sk)->channel = channel; sk->sk_state = BT_CONFIG; @@ -974,7 +981,7 @@ static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p) sk_for_each(sk, &rfcomm_sk_list.head) { seq_printf(f, "%pMR %pMR %d %d\n", - &bt_sk(sk)->src, &bt_sk(sk)->dst, + &rfcomm_pi(sk)->src, &rfcomm_pi(sk)->dst, sk->sk_state, rfcomm_pi(sk)->channel); } @@ -1044,15 +1051,15 @@ int __init rfcomm_init_sockets(void) goto error; } - if (bt_debugfs) { - rfcomm_sock_debugfs = debugfs_create_file("rfcomm", 0444, - bt_debugfs, NULL, &rfcomm_sock_debugfs_fops); - if (!rfcomm_sock_debugfs) - BT_ERR("Failed to create RFCOMM debug file"); - } - BT_INFO("RFCOMM socket layer initialized"); + if (IS_ERR_OR_NULL(bt_debugfs)) + return 0; + + rfcomm_sock_debugfs = debugfs_create_file("rfcomm", 0444, + bt_debugfs, NULL, + &rfcomm_sock_debugfs_fops); + return 0; error: diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index 6d126faf145..84fcf9fff3e 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -569,7 +569,6 @@ static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb) static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err) { struct rfcomm_dev *dev = dlc->owner; - struct tty_struct *tty; if (!dev) return; @@ -581,38 +580,8 @@ static void rfcomm_dev_state_change(struct rfcomm_dlc *dlc, int err) DPM_ORDER_DEV_AFTER_PARENT); wake_up_interruptible(&dev->port.open_wait); - } else if (dlc->state == BT_CLOSED) { - tty = tty_port_tty_get(&dev->port); - if (!tty) { - if (test_bit(RFCOMM_RELEASE_ONHUP, &dev->flags)) { - /* Drop DLC lock here to avoid deadlock - * 1. rfcomm_dev_get will take rfcomm_dev_lock - * but in rfcomm_dev_add there's lock order: - * rfcomm_dev_lock -> dlc lock - * 2. tty_port_put will deadlock if it's - * the last reference - * - * FIXME: when we release the lock anything - * could happen to dev, even its destruction - */ - rfcomm_dlc_unlock(dlc); - if (rfcomm_dev_get(dev->id) == NULL) { - rfcomm_dlc_lock(dlc); - return; - } - - if (!test_and_set_bit(RFCOMM_TTY_RELEASED, - &dev->flags)) - tty_port_put(&dev->port); - - tty_port_put(&dev->port); - rfcomm_dlc_lock(dlc); - } - } else { - tty_hangup(tty); - tty_kref_put(tty); - } - } + } else if (dlc->state == BT_CLOSED) + tty_port_tty_hangup(&dev->port, false); } static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig) diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index 96bd388d93a..12a0e51e21e 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -92,9 +92,6 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon) hcon->sco_data = conn; conn->hcon = hcon; - conn->src = &hdev->bdaddr; - conn->dst = &hcon->dst; - if (hdev->sco_mtu > 0) conn->mtu = hdev->sco_mtu; else @@ -156,16 +153,14 @@ static int sco_chan_add(struct sco_conn *conn, struct sock *sk, static int sco_connect(struct sock *sk) { - bdaddr_t *src = &bt_sk(sk)->src; - bdaddr_t *dst = &bt_sk(sk)->dst; struct sco_conn *conn; struct hci_conn *hcon; struct hci_dev *hdev; int err, type; - BT_DBG("%pMR -> %pMR", src, dst); + BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst); - hdev = hci_get_route(dst, src); + hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src); if (!hdev) return -EHOSTUNREACH; @@ -182,7 +177,8 @@ static int sco_connect(struct sock *sk) goto done; } - hcon = hci_connect_sco(hdev, type, dst, sco_pi(sk)->setting); + hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst, + sco_pi(sk)->setting); if (IS_ERR(hcon)) { err = PTR_ERR(hcon); goto done; @@ -196,7 +192,7 @@ static int sco_connect(struct sock *sk) } /* Update source addr of the socket */ - bacpy(src, conn->src); + bacpy(&sco_pi(sk)->src, &hcon->src); err = sco_chan_add(conn, sk, NULL); if (err) @@ -270,7 +266,7 @@ static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba) if (sk->sk_state != BT_LISTEN) continue; - if (!bacmp(&bt_sk(sk)->src, ba)) + if (!bacmp(&sco_pi(sk)->src, ba)) return sk; } @@ -291,11 +287,11 @@ static struct sock *sco_get_sock_listen(bdaddr_t *src) continue; /* Exact match. */ - if (!bacmp(&bt_sk(sk)->src, src)) + if (!bacmp(&sco_pi(sk)->src, src)) break; /* Closest match */ - if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) + if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY)) sk1 = sk; } @@ -475,7 +471,7 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le goto done; } - bacpy(&bt_sk(sk)->src, &sa->sco_bdaddr); + bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr); sk->sk_state = BT_BOUND; @@ -505,7 +501,7 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen lock_sock(sk); /* Set destination address and psm */ - bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr); + bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr); err = sco_connect(sk); if (err) @@ -522,7 +518,7 @@ done: static int sco_sock_listen(struct socket *sock, int backlog) { struct sock *sk = sock->sk; - bdaddr_t *src = &bt_sk(sk)->src; + bdaddr_t *src = &sco_pi(sk)->src; int err = 0; BT_DBG("sk %p backlog %d", sk, backlog); @@ -626,9 +622,9 @@ static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len *len = sizeof(struct sockaddr_sco); if (peer) - bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst); + bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst); else - bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src); + bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src); return 0; } @@ -999,7 +995,7 @@ static void sco_conn_ready(struct sco_conn *conn) } else { sco_conn_lock(conn); - parent = sco_get_sock_listen(conn->src); + parent = sco_get_sock_listen(&conn->hcon->src); if (!parent) { sco_conn_unlock(conn); return; @@ -1017,8 +1013,8 @@ static void sco_conn_ready(struct sco_conn *conn) sco_sock_init(sk, parent); - bacpy(&bt_sk(sk)->src, conn->src); - bacpy(&bt_sk(sk)->dst, conn->dst); + bacpy(&sco_pi(sk)->src, &conn->hcon->src); + bacpy(&sco_pi(sk)->dst, &conn->hcon->dst); hci_conn_hold(conn->hcon); __sco_chan_add(conn, sk, parent); @@ -1051,8 +1047,8 @@ int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags) if (sk->sk_state != BT_LISTEN) continue; - if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) || - !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) { + if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) || + !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) { lm |= HCI_LM_ACCEPT; if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) @@ -1111,8 +1107,8 @@ static int sco_debugfs_show(struct seq_file *f, void *p) read_lock(&sco_sk_list.lock); sk_for_each(sk, &sco_sk_list.head) { - seq_printf(f, "%pMR %pMR %d\n", &bt_sk(sk)->src, - &bt_sk(sk)->dst, sk->sk_state); + seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src, + &sco_pi(sk)->dst, sk->sk_state); } read_unlock(&sco_sk_list.lock); @@ -1181,15 +1177,14 @@ int __init sco_init(void) goto error; } - if (bt_debugfs) { - sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, - NULL, &sco_debugfs_fops); - if (!sco_debugfs) - BT_ERR("Failed to create SCO debug file"); - } - BT_INFO("SCO socket layer initialized"); + if (IS_ERR_OR_NULL(bt_debugfs)) + return 0; + + sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs, + NULL, &sco_debugfs_fops); + return 0; error: diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index b5562abdd6e..85a2796cac6 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -28,7 +28,8 @@ #include <net/bluetooth/hci_core.h> #include <net/bluetooth/l2cap.h> #include <net/bluetooth/mgmt.h> -#include <net/bluetooth/smp.h> + +#include "smp.h" #define SMP_TIMEOUT msecs_to_jiffies(30000) @@ -85,8 +86,8 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r) } static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16], - u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia, - u8 _rat, bdaddr_t *ra, u8 res[16]) + u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia, + u8 _rat, bdaddr_t *ra, u8 res[16]) { u8 p1[16], p2[16]; int err; @@ -126,8 +127,8 @@ static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16], return err; } -static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16], - u8 r1[16], u8 r2[16], u8 _r[16]) +static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16], u8 r1[16], + u8 r2[16], u8 _r[16]) { int err; @@ -150,7 +151,7 @@ static int smp_rand(u8 *buf) } static struct sk_buff *smp_build_cmd(struct l2cap_conn *conn, u8 code, - u16 dlen, void *data) + u16 dlen, void *data) { struct sk_buff *skb; struct l2cap_hdr *lh; @@ -213,9 +214,8 @@ static __u8 seclevel_to_authreq(__u8 sec_level) } static void build_pairing_cmd(struct l2cap_conn *conn, - struct smp_cmd_pairing *req, - struct smp_cmd_pairing *rsp, - __u8 authreq) + struct smp_cmd_pairing *req, + struct smp_cmd_pairing *rsp, __u8 authreq) { u8 dist_keys = 0; @@ -249,7 +249,7 @@ static u8 check_enc_key_size(struct l2cap_conn *conn, __u8 max_key_size) struct smp_chan *smp = conn->smp_chan; if ((max_key_size > SMP_MAX_ENC_KEY_SIZE) || - (max_key_size < SMP_MIN_ENC_KEY_SIZE)) + (max_key_size < SMP_MIN_ENC_KEY_SIZE)) return SMP_ENC_KEY_SIZE; smp->enc_key_size = max_key_size; @@ -263,15 +263,15 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send) if (send) smp_send_cmd(conn, SMP_CMD_PAIRING_FAIL, sizeof(reason), - &reason); + &reason); - clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->hcon->flags); - mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type, - hcon->dst_type, HCI_ERROR_AUTH_FAILURE); + clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags); + mgmt_auth_failed(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type, + HCI_ERROR_AUTH_FAILURE); cancel_delayed_work_sync(&conn->security_timer); - if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) + if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags)) smp_chan_destroy(conn); } @@ -309,8 +309,8 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, /* If either side has unknown io_caps, use JUST WORKS */ /* Otherwise, look up method from the table */ if (!(auth & SMP_AUTH_MITM) || - local_io > SMP_IO_KEYBOARD_DISPLAY || - remote_io > SMP_IO_KEYBOARD_DISPLAY) + local_io > SMP_IO_KEYBOARD_DISPLAY || + remote_io > SMP_IO_KEYBOARD_DISPLAY) method = JUST_WORKS; else method = gen_method[remote_io][local_io]; @@ -354,10 +354,10 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth, hci_dev_lock(hcon->hdev); if (method == REQ_PASSKEY) - ret = mgmt_user_passkey_request(hcon->hdev, conn->dst, + ret = mgmt_user_passkey_request(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type); else - ret = mgmt_user_confirm_request(hcon->hdev, conn->dst, + ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type, cpu_to_le32(passkey), 0); @@ -386,12 +386,13 @@ static void confirm_work(struct work_struct *work) smp->tfm = tfm; if (conn->hcon->out) - ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, 0, - conn->src, conn->hcon->dst_type, conn->dst, res); + ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, + conn->hcon->src_type, &conn->hcon->src, + conn->hcon->dst_type, &conn->hcon->dst, res); else ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, - conn->hcon->dst_type, conn->dst, 0, conn->src, - res); + conn->hcon->dst_type, &conn->hcon->dst, + conn->hcon->src_type, &conn->hcon->src, res); if (ret) { reason = SMP_UNSPECIFIED; goto error; @@ -425,11 +426,13 @@ static void random_work(struct work_struct *work) BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave"); if (hcon->out) - ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0, - conn->src, hcon->dst_type, conn->dst, res); + ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, + hcon->src_type, &hcon->src, + hcon->dst_type, &hcon->dst, res); else ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, - hcon->dst_type, conn->dst, 0, conn->src, res); + hcon->dst_type, &hcon->dst, + hcon->src_type, &hcon->src, res); if (ret) { reason = SMP_UNSPECIFIED; goto error; @@ -477,9 +480,9 @@ static void random_work(struct work_struct *work) swap128(key, stk); memset(stk + smp->enc_key_size, 0, - SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size); + SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size); - hci_add_ltk(hcon->hdev, conn->dst, hcon->dst_type, + hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type, HCI_SMP_STK_SLAVE, 0, 0, stk, smp->enc_key_size, ediv, rand); } @@ -494,7 +497,7 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn) { struct smp_chan *smp; - smp = kzalloc(sizeof(struct smp_chan), GFP_ATOMIC); + smp = kzalloc(sizeof(*smp), GFP_ATOMIC); if (!smp) return NULL; @@ -649,7 +652,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb) memcpy(&smp->prsp[1], rsp, sizeof(*rsp)); if ((req->auth_req & SMP_AUTH_BONDING) && - (rsp->auth_req & SMP_AUTH_BONDING)) + (rsp->auth_req & SMP_AUTH_BONDING)) auth = SMP_AUTH_BONDING; auth |= (req->auth_req | rsp->auth_req) & SMP_AUTH_MITM; @@ -684,7 +687,7 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb) swap128(smp->prnd, random); smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(random), - random); + random); } else if (test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags)) { queue_work(hdev->workqueue, &smp->confirm); } else { @@ -714,7 +717,7 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level) struct smp_ltk *key; struct hci_conn *hcon = conn->hcon; - key = hci_find_ltk_by_addr(hcon->hdev, conn->dst, hcon->dst_type); + key = hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type); if (!key) return 0; @@ -728,8 +731,8 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level) hcon->enc_key_size = key->enc_size; return 1; - } + static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) { struct smp_cmd_security_req *rp = (void *) skb->data; @@ -835,9 +838,9 @@ static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb) skb_pull(skb, sizeof(*rp)); hci_dev_lock(hdev); - authenticated = (conn->hcon->sec_level == BT_SECURITY_HIGH); - hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type, - HCI_SMP_LTK, 1, authenticated, smp->tk, smp->enc_key_size, + authenticated = (hcon->sec_level == BT_SECURITY_HIGH); + hci_add_ltk(hdev, &hcon->dst, hcon->dst_type, HCI_SMP_LTK, 1, + authenticated, smp->tk, smp->enc_key_size, rp->ediv, rp->rand); smp_distribute_keys(conn, 1); hci_dev_unlock(hdev); @@ -847,16 +850,27 @@ static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb) int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb) { - __u8 code = skb->data[0]; - __u8 reason; + struct hci_conn *hcon = conn->hcon; + __u8 code, reason; int err = 0; - if (!test_bit(HCI_LE_ENABLED, &conn->hcon->hdev->dev_flags)) { + if (hcon->type != LE_LINK) { + kfree_skb(skb); + return 0; + } + + if (skb->len < 1) { + kfree_skb(skb); + return -EILSEQ; + } + + if (!test_bit(HCI_LE_ENABLED, &hcon->hdev->dev_flags)) { err = -ENOTSUPP; reason = SMP_PAIRING_NOTSUPP; goto done; } + code = skb->data[0]; skb_pull(skb, sizeof(code)); /* @@ -974,7 +988,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force) smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc); authenticated = hcon->sec_level == BT_SECURITY_HIGH; - hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type, + hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type, HCI_SMP_LTK_SLAVE, 1, authenticated, enc.ltk, smp->enc_key_size, ediv, ident.rand); @@ -996,10 +1010,10 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force) /* Just public address */ memset(&addrinfo, 0, sizeof(addrinfo)); - bacpy(&addrinfo.bdaddr, conn->src); + bacpy(&addrinfo.bdaddr, &conn->hcon->src); smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo), - &addrinfo); + &addrinfo); *keydist &= ~SMP_DIST_ID_KEY; } diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h new file mode 100644 index 00000000000..f8ba07f3e5f --- /dev/null +++ b/net/bluetooth/smp.h @@ -0,0 +1,146 @@ +/* + BlueZ - Bluetooth protocol stack for Linux + Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY + CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS + SOFTWARE IS DISCLAIMED. +*/ + +#ifndef __SMP_H +#define __SMP_H + +struct smp_command_hdr { + __u8 code; +} __packed; + +#define SMP_CMD_PAIRING_REQ 0x01 +#define SMP_CMD_PAIRING_RSP 0x02 +struct smp_cmd_pairing { + __u8 io_capability; + __u8 oob_flag; + __u8 auth_req; + __u8 max_key_size; + __u8 init_key_dist; + __u8 resp_key_dist; +} __packed; + +#define SMP_IO_DISPLAY_ONLY 0x00 +#define SMP_IO_DISPLAY_YESNO 0x01 +#define SMP_IO_KEYBOARD_ONLY 0x02 +#define SMP_IO_NO_INPUT_OUTPUT 0x03 +#define SMP_IO_KEYBOARD_DISPLAY 0x04 + +#define SMP_OOB_NOT_PRESENT 0x00 +#define SMP_OOB_PRESENT 0x01 + +#define SMP_DIST_ENC_KEY 0x01 +#define SMP_DIST_ID_KEY 0x02 +#define SMP_DIST_SIGN 0x04 + +#define SMP_AUTH_NONE 0x00 +#define SMP_AUTH_BONDING 0x01 +#define SMP_AUTH_MITM 0x04 + +#define SMP_CMD_PAIRING_CONFIRM 0x03 +struct smp_cmd_pairing_confirm { + __u8 confirm_val[16]; +} __packed; + +#define SMP_CMD_PAIRING_RANDOM 0x04 +struct smp_cmd_pairing_random { + __u8 rand_val[16]; +} __packed; + +#define SMP_CMD_PAIRING_FAIL 0x05 +struct smp_cmd_pairing_fail { + __u8 reason; +} __packed; + +#define SMP_CMD_ENCRYPT_INFO 0x06 +struct smp_cmd_encrypt_info { + __u8 ltk[16]; +} __packed; + +#define SMP_CMD_MASTER_IDENT 0x07 +struct smp_cmd_master_ident { + __le16 ediv; + __u8 rand[8]; +} __packed; + +#define SMP_CMD_IDENT_INFO 0x08 +struct smp_cmd_ident_info { + __u8 irk[16]; +} __packed; + +#define SMP_CMD_IDENT_ADDR_INFO 0x09 +struct smp_cmd_ident_addr_info { + __u8 addr_type; + bdaddr_t bdaddr; +} __packed; + +#define SMP_CMD_SIGN_INFO 0x0a +struct smp_cmd_sign_info { + __u8 csrk[16]; +} __packed; + +#define SMP_CMD_SECURITY_REQ 0x0b +struct smp_cmd_security_req { + __u8 auth_req; +} __packed; + +#define SMP_PASSKEY_ENTRY_FAILED 0x01 +#define SMP_OOB_NOT_AVAIL 0x02 +#define SMP_AUTH_REQUIREMENTS 0x03 +#define SMP_CONFIRM_FAILED 0x04 +#define SMP_PAIRING_NOTSUPP 0x05 +#define SMP_ENC_KEY_SIZE 0x06 +#define SMP_CMD_NOTSUPP 0x07 +#define SMP_UNSPECIFIED 0x08 +#define SMP_REPEATED_ATTEMPTS 0x09 + +#define SMP_MIN_ENC_KEY_SIZE 7 +#define SMP_MAX_ENC_KEY_SIZE 16 + +#define SMP_FLAG_TK_VALID 1 +#define SMP_FLAG_CFM_PENDING 2 +#define SMP_FLAG_MITM_AUTH 3 + +struct smp_chan { + struct l2cap_conn *conn; + u8 preq[7]; /* SMP Pairing Request */ + u8 prsp[7]; /* SMP Pairing Response */ + u8 prnd[16]; /* SMP Pairing Random (local) */ + u8 rrnd[16]; /* SMP Pairing Random (remote) */ + u8 pcnf[16]; /* SMP Pairing Confirm */ + u8 tk[16]; /* SMP Temporary Key */ + u8 enc_key_size; + unsigned long smp_flags; + struct crypto_blkcipher *tfm; + struct work_struct confirm; + struct work_struct random; + +}; + +/* SMP Commands */ +int smp_conn_security(struct hci_conn *hcon, __u8 sec_level); +int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb); +int smp_distribute_keys(struct l2cap_conn *conn, __u8 force); +int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey); + +void smp_chan_destroy(struct l2cap_conn *conn); + +#endif /* __SMP_H */ |