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-rw-r--r--drivers/bluetooth/Kconfig4
-rw-r--r--drivers/bluetooth/ath3k.c3
-rw-r--r--drivers/bluetooth/btmrvl_sdio.c124
-rw-r--r--drivers/bluetooth/btmrvl_sdio.h68
-rw-r--r--drivers/bluetooth/hci_ath.c7
-rw-r--r--drivers/bluetooth/hci_h4.c7
-rw-r--r--drivers/bluetooth/hci_ldisc.c6
-rw-r--r--include/net/bluetooth/l2cap.h130
-rw-r--r--net/bluetooth/hci_event.c4
-rw-r--r--net/bluetooth/l2cap_core.c1344
-rw-r--r--net/bluetooth/l2cap_sock.c72
11 files changed, 964 insertions, 805 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index 8e0de9a0586..11b41fd40c2 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -188,7 +188,7 @@ config BT_MRVL
The core driver to support Marvell Bluetooth devices.
This driver is required if you want to support
- Marvell Bluetooth devices, such as 8688.
+ Marvell Bluetooth devices, such as 8688/8787.
Say Y here to compile Marvell Bluetooth driver
into the kernel or say M to compile it as module.
@@ -201,7 +201,7 @@ config BT_MRVL_SDIO
The driver for Marvell Bluetooth chipsets with SDIO interface.
This driver is required if you want to use Marvell Bluetooth
- devices with SDIO interface. Currently only SD8688 chipset is
+ devices with SDIO interface. Currently SD8688/SD8787 chipsets are
supported.
Say Y here to compile support for Marvell BT-over-SDIO driver
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 5577ed656e2..695d4414bd4 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -138,9 +138,6 @@ static int ath3k_load_firmware(struct usb_device *udev,
count -= size;
}
- kfree(send_buf);
- return 0;
-
error:
kfree(send_buf);
return err;
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index dcc2a6ec23f..7f521d4ac65 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -49,15 +49,59 @@
static u8 user_rmmod;
static u8 sdio_ireg;
+static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
+ .cfg = 0x03,
+ .host_int_mask = 0x04,
+ .host_intstatus = 0x05,
+ .card_status = 0x20,
+ .sq_read_base_addr_a0 = 0x10,
+ .sq_read_base_addr_a1 = 0x11,
+ .card_fw_status0 = 0x40,
+ .card_fw_status1 = 0x41,
+ .card_rx_len = 0x42,
+ .card_rx_unit = 0x43,
+ .io_port_0 = 0x00,
+ .io_port_1 = 0x01,
+ .io_port_2 = 0x02,
+};
+static const struct btmrvl_sdio_card_reg btmrvl_reg_8787 = {
+ .cfg = 0x00,
+ .host_int_mask = 0x02,
+ .host_intstatus = 0x03,
+ .card_status = 0x30,
+ .sq_read_base_addr_a0 = 0x40,
+ .sq_read_base_addr_a1 = 0x41,
+ .card_revision = 0x5c,
+ .card_fw_status0 = 0x60,
+ .card_fw_status1 = 0x61,
+ .card_rx_len = 0x62,
+ .card_rx_unit = 0x63,
+ .io_port_0 = 0x78,
+ .io_port_1 = 0x79,
+ .io_port_2 = 0x7a,
+};
+
static const struct btmrvl_sdio_device btmrvl_sdio_sd6888 = {
.helper = "sd8688_helper.bin",
.firmware = "sd8688.bin",
+ .reg = &btmrvl_reg_8688,
+ .sd_blksz_fw_dl = 64,
+};
+
+static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
+ .helper = NULL,
+ .firmware = "mrvl/sd8787_uapsta.bin",
+ .reg = &btmrvl_reg_8787,
+ .sd_blksz_fw_dl = 256,
};
static const struct sdio_device_id btmrvl_sdio_ids[] = {
/* Marvell SD8688 Bluetooth device */
{ SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
.driver_data = (unsigned long) &btmrvl_sdio_sd6888 },
+ /* Marvell SD8787 Bluetooth device */
+ { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
+ .driver_data = (unsigned long) &btmrvl_sdio_sd8787 },
{ } /* Terminating entry */
};
@@ -69,7 +113,7 @@ static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
u8 reg;
int ret;
- reg = sdio_readb(card->func, CARD_RX_UNIT_REG, &ret);
+ reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
if (!ret)
card->rx_unit = reg;
@@ -83,11 +127,11 @@ static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
*dat = 0;
- fws0 = sdio_readb(card->func, CARD_FW_STATUS0_REG, &ret);
+ fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
if (ret)
return -EIO;
- fws1 = sdio_readb(card->func, CARD_FW_STATUS1_REG, &ret);
+ fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
if (ret)
return -EIO;
@@ -101,7 +145,7 @@ static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
u8 reg;
int ret;
- reg = sdio_readb(card->func, CARD_RX_LEN_REG, &ret);
+ reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
if (!ret)
*dat = (u16) reg << card->rx_unit;
@@ -113,7 +157,7 @@ static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
{
int ret;
- sdio_writeb(card->func, mask, HOST_INT_MASK_REG, &ret);
+ sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
if (ret) {
BT_ERR("Unable to enable the host interrupt!");
ret = -EIO;
@@ -128,13 +172,13 @@ static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
u8 host_int_mask;
int ret;
- host_int_mask = sdio_readb(card->func, HOST_INT_MASK_REG, &ret);
+ host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
if (ret)
return -EIO;
host_int_mask &= ~mask;
- sdio_writeb(card->func, host_int_mask, HOST_INT_MASK_REG, &ret);
+ sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
if (ret < 0) {
BT_ERR("Unable to disable the host interrupt!");
return -EIO;
@@ -150,7 +194,7 @@ static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
int ret;
for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
- status = sdio_readb(card->func, CARD_STATUS_REG, &ret);
+ status = sdio_readb(card->func, card->reg->card_status, &ret);
if (ret)
goto failed;
if ((status & bits) == bits)
@@ -299,7 +343,7 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
u8 base0, base1;
void *tmpfwbuf = NULL;
u8 *fwbuf;
- u16 len;
+ u16 len, blksz_dl = card->sd_blksz_fw_dl;
int txlen = 0, tx_blocks = 0, count = 0;
ret = request_firmware(&fw_firmware, card->firmware,
@@ -345,7 +389,7 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
base0 = sdio_readb(card->func,
- SQ_READ_BASE_ADDRESS_A0_REG, &ret);
+ card->reg->sq_read_base_addr_a0, &ret);
if (ret) {
BT_ERR("BASE0 register read failed:"
" base0 = 0x%04X(%d)."
@@ -355,7 +399,7 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
goto done;
}
base1 = sdio_readb(card->func,
- SQ_READ_BASE_ADDRESS_A1_REG, &ret);
+ card->reg->sq_read_base_addr_a1, &ret);
if (ret) {
BT_ERR("BASE1 register read failed:"
" base1 = 0x%04X(%d)."
@@ -403,20 +447,19 @@ static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
if (firmwarelen - offset < txlen)
txlen = firmwarelen - offset;
- tx_blocks =
- (txlen + SDIO_BLOCK_SIZE - 1) / SDIO_BLOCK_SIZE;
+ tx_blocks = (txlen + blksz_dl - 1) / blksz_dl;
memcpy(fwbuf, &firmware[offset], txlen);
}
ret = sdio_writesb(card->func, card->ioport, fwbuf,
- tx_blocks * SDIO_BLOCK_SIZE);
+ tx_blocks * blksz_dl);
if (ret < 0) {
BT_ERR("FW download, writesb(%d) failed @%d",
count, offset);
- sdio_writeb(card->func, HOST_CMD53_FIN, CONFIG_REG,
- &ret);
+ sdio_writeb(card->func, HOST_CMD53_FIN,
+ card->reg->cfg, &ret);
if (ret)
BT_ERR("writeb failed (CFG)");
}
@@ -597,7 +640,7 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)
priv = card->priv;
- ireg = sdio_readb(card->func, HOST_INTSTATUS_REG, &ret);
+ ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
if (ret) {
BT_ERR("sdio_readb: read int status register failed");
return;
@@ -613,7 +656,7 @@ static void btmrvl_sdio_interrupt(struct sdio_func *func)
sdio_writeb(card->func, ~(ireg) & (DN_LD_HOST_INT_STATUS |
UP_LD_HOST_INT_STATUS),
- HOST_INTSTATUS_REG, &ret);
+ card->reg->host_intstatus, &ret);
if (ret) {
BT_ERR("sdio_writeb: clear int status register failed");
return;
@@ -664,7 +707,7 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
goto release_irq;
}
- reg = sdio_readb(func, IO_PORT_0_REG, &ret);
+ reg = sdio_readb(func, card->reg->io_port_0, &ret);
if (ret < 0) {
ret = -EIO;
goto release_irq;
@@ -672,7 +715,7 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
card->ioport = reg;
- reg = sdio_readb(func, IO_PORT_1_REG, &ret);
+ reg = sdio_readb(func, card->reg->io_port_1, &ret);
if (ret < 0) {
ret = -EIO;
goto release_irq;
@@ -680,7 +723,7 @@ static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
card->ioport |= (reg << 8);
- reg = sdio_readb(func, IO_PORT_2_REG, &ret);
+ reg = sdio_readb(func, card->reg->io_port_2, &ret);
if (ret < 0) {
ret = -EIO;
goto release_irq;
@@ -815,6 +858,8 @@ exit:
static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
{
int ret = 0;
+ u8 fws0;
+ int pollnum = MAX_POLL_TRIES;
if (!card || !card->func) {
BT_ERR("card or function is NULL!");
@@ -827,20 +872,36 @@ static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
goto done;
}
- ret = btmrvl_sdio_download_helper(card);
+ /* Check if other function driver is downloading the firmware */
+ fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
if (ret) {
- BT_ERR("Failed to download helper!");
+ BT_ERR("Failed to read FW downloading status!");
ret = -EIO;
goto done;
}
+ if (fws0) {
+ BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
+
+ /* Give other function more time to download the firmware */
+ pollnum *= 10;
+ } else {
+ if (card->helper) {
+ ret = btmrvl_sdio_download_helper(card);
+ if (ret) {
+ BT_ERR("Failed to download helper!");
+ ret = -EIO;
+ goto done;
+ }
+ }
- if (btmrvl_sdio_download_fw_w_helper(card)) {
- BT_ERR("Failed to download firmware!");
- ret = -EIO;
- goto done;
+ if (btmrvl_sdio_download_fw_w_helper(card)) {
+ BT_ERR("Failed to download firmware!");
+ ret = -EIO;
+ goto done;
+ }
}
- if (btmrvl_sdio_verify_fw_download(card, MAX_POLL_TRIES)) {
+ if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
BT_ERR("FW failed to be active in time!");
ret = -ETIMEDOUT;
goto done;
@@ -864,7 +925,7 @@ static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
sdio_claim_host(card->func);
- sdio_writeb(card->func, HOST_POWER_UP, CONFIG_REG, &ret);
+ sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
sdio_release_host(card->func);
@@ -893,8 +954,10 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
if (id->driver_data) {
struct btmrvl_sdio_device *data = (void *) id->driver_data;
- card->helper = data->helper;
+ card->helper = data->helper;
card->firmware = data->firmware;
+ card->reg = data->reg;
+ card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
}
if (btmrvl_sdio_register_dev(card) < 0) {
@@ -1011,3 +1074,4 @@ MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL v2");
MODULE_FIRMWARE("sd8688_helper.bin");
MODULE_FIRMWARE("sd8688.bin");
+MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
diff --git a/drivers/bluetooth/btmrvl_sdio.h b/drivers/bluetooth/btmrvl_sdio.h
index 27329f107e5..43d35a609ca 100644
--- a/drivers/bluetooth/btmrvl_sdio.h
+++ b/drivers/bluetooth/btmrvl_sdio.h
@@ -47,44 +47,46 @@
/* Max retry number of CMD53 write */
#define MAX_WRITE_IOMEM_RETRY 2
-/* Host Control Registers */
-#define IO_PORT_0_REG 0x00
-#define IO_PORT_1_REG 0x01
-#define IO_PORT_2_REG 0x02
-
-#define CONFIG_REG 0x03
-#define HOST_POWER_UP BIT(1)
-#define HOST_CMD53_FIN BIT(2)
-
-#define HOST_INT_MASK_REG 0x04
-#define HIM_DISABLE 0xff
-#define HIM_ENABLE (BIT(0) | BIT(1))
-
-#define HOST_INTSTATUS_REG 0x05
-#define UP_LD_HOST_INT_STATUS BIT(0)
-#define DN_LD_HOST_INT_STATUS BIT(1)
-
-/* Card Control Registers */
-#define SQ_READ_BASE_ADDRESS_A0_REG 0x10
-#define SQ_READ_BASE_ADDRESS_A1_REG 0x11
-
-#define CARD_STATUS_REG 0x20
-#define DN_LD_CARD_RDY BIT(0)
-#define CARD_IO_READY BIT(3)
-
-#define CARD_FW_STATUS0_REG 0x40
-#define CARD_FW_STATUS1_REG 0x41
-#define FIRMWARE_READY 0xfedc
-
-#define CARD_RX_LEN_REG 0x42
-#define CARD_RX_UNIT_REG 0x43
-
+/* register bitmasks */
+#define HOST_POWER_UP BIT(1)
+#define HOST_CMD53_FIN BIT(2)
+
+#define HIM_DISABLE 0xff
+#define HIM_ENABLE (BIT(0) | BIT(1))
+
+#define UP_LD_HOST_INT_STATUS BIT(0)
+#define DN_LD_HOST_INT_STATUS BIT(1)
+
+#define DN_LD_CARD_RDY BIT(0)
+#define CARD_IO_READY BIT(3)
+
+#define FIRMWARE_READY 0xfedc
+
+
+struct btmrvl_sdio_card_reg {
+ u8 cfg;
+ u8 host_int_mask;
+ u8 host_intstatus;
+ u8 card_status;
+ u8 sq_read_base_addr_a0;
+ u8 sq_read_base_addr_a1;
+ u8 card_revision;
+ u8 card_fw_status0;
+ u8 card_fw_status1;
+ u8 card_rx_len;
+ u8 card_rx_unit;
+ u8 io_port_0;
+ u8 io_port_1;
+ u8 io_port_2;
+};
struct btmrvl_sdio_card {
struct sdio_func *func;
u32 ioport;
const char *helper;
const char *firmware;
+ const struct btmrvl_sdio_card_reg *reg;
+ u16 sd_blksz_fw_dl;
u8 rx_unit;
struct btmrvl_private *priv;
};
@@ -92,6 +94,8 @@ struct btmrvl_sdio_card {
struct btmrvl_sdio_device {
const char *helper;
const char *firmware;
+ const struct btmrvl_sdio_card_reg *reg;
+ u16 sd_blksz_fw_dl;
};
diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c
index bd34406faaa..4093935ddf4 100644
--- a/drivers/bluetooth/hci_ath.c
+++ b/drivers/bluetooth/hci_ath.c
@@ -201,8 +201,13 @@ static struct sk_buff *ath_dequeue(struct hci_uart *hu)
/* Recv data */
static int ath_recv(struct hci_uart *hu, void *data, int count)
{
- if (hci_recv_stream_fragment(hu->hdev, data, count) < 0)
+ int ret;
+
+ ret = hci_recv_stream_fragment(hu->hdev, data, count);
+ if (ret < 0) {
BT_ERR("Frame Reassembly Failed");
+ return ret;
+ }
return count;
}
diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index 7b8ad93e2c3..2fcd8b387d6 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -151,8 +151,13 @@ static inline int h4_check_data_len(struct h4_struct *h4, int len)
/* Recv data */
static int h4_recv(struct hci_uart *hu, void *data, int count)
{
- if (hci_recv_stream_fragment(hu->hdev, data, count) < 0)
+ int ret;
+
+ ret = hci_recv_stream_fragment(hu->hdev, data, count);
+ if (ret < 0) {
BT_ERR("Frame Reassembly Failed");
+ return ret;
+ }
return count;
}
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 48ad2a7ab08..320f71803a2 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -359,6 +359,7 @@ static void hci_uart_tty_wakeup(struct tty_struct *tty)
*/
static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *flags, int count)
{
+ int ret;
struct hci_uart *hu = (void *)tty->disc_data;
if (!hu || tty != hu->tty)
@@ -368,8 +369,9 @@ static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data, char *f
return;
spin_lock(&hu->rx_lock);
- hu->proto->recv(hu, (void *) data, count);
- hu->hdev->stat.byte_rx += count;
+ ret = hu->proto->recv(hu, (void *) data, count);
+ if (ret > 0)
+ hu->hdev->stat.byte_rx += count;
spin_unlock(&hu->rx_lock);
tty_unthrottle(tty);
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 2b9ca0d5c4a..7a215a7f9e3 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -276,10 +276,52 @@ struct l2cap_conn_param_update_rsp {
#define L2CAP_CONN_PARAM_ACCEPTED 0x0000
#define L2CAP_CONN_PARAM_REJECTED 0x0001
-/* ----- L2CAP connections ----- */
-struct l2cap_chan_list {
- struct sock *head;
- rwlock_t lock;
+/* ----- L2CAP channels and connections ----- */
+struct srej_list {
+ __u8 tx_seq;
+ struct list_head list;
+};
+
+struct l2cap_chan {
+ struct sock *sk;
+ __u8 ident;
+
+ __u8 conf_req[64];
+ __u8 conf_len;
+ __u8 num_conf_req;
+ __u8 num_conf_rsp;
+
+ __u16 conn_state;
+
+ __u8 next_tx_seq;
+ __u8 expected_ack_seq;
+ __u8 expected_tx_seq;
+ __u8 buffer_seq;
+ __u8 buffer_seq_srej;
+ __u8 srej_save_reqseq;
+ __u8 frames_sent;
+ __u8 unacked_frames;
+ __u8 retry_count;
+ __u8 num_acked;
+ __u16 sdu_len;
+ __u16 partial_sdu_len;
+ struct sk_buff *sdu;
+
+ __u8 remote_tx_win;
+ __u8 remote_max_tx;
+ __u16 remote_mps;
+
+ struct timer_list retrans_timer;
+ struct timer_list monitor_timer;
+ struct timer_list ack_timer;
+ struct sk_buff *tx_send_head;
+ struct sk_buff_head tx_q;
+ struct sk_buff_head srej_q;
+ struct sk_buff_head busy_q;
+ struct work_struct busy_work;
+ struct list_head srej_l;
+
+ struct list_head list;
};
struct l2cap_conn {
@@ -305,29 +347,16 @@ struct l2cap_conn {
__u8 disc_reason;
- struct l2cap_chan_list chan_list;
-};
-
-struct sock_del_list {
- struct sock *sk;
- struct list_head list;
+ struct list_head chan_l;
+ rwlock_t chan_lock;
};
#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
#define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
-/* ----- L2CAP channel and socket info ----- */
+/* ----- L2CAP socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
-#define TX_QUEUE(sk) (&l2cap_pi(sk)->tx_queue)
-#define SREJ_QUEUE(sk) (&l2cap_pi(sk)->srej_queue)
-#define BUSY_QUEUE(sk) (&l2cap_pi(sk)->busy_queue)
-#define SREJ_LIST(sk) (&l2cap_pi(sk)->srej_l.list)
-
-struct srej_list {
- __u8 tx_seq;
- struct list_head list;
-};
struct l2cap_pinfo {
struct bt_sock bt;
@@ -339,8 +368,6 @@ struct l2cap_pinfo {
__u16 omtu;
__u16 flush_to;
__u8 mode;
- __u8 num_conf_req;
- __u8 num_conf_rsp;
__u8 fcs;
__u8 sec_level;
@@ -348,49 +375,18 @@ struct l2cap_pinfo {
__u8 force_reliable;
__u8 flushable;
- __u8 conf_req[64];
- __u8 conf_len;
__u8 conf_state;
- __u16 conn_state;
-
- __u8 next_tx_seq;
- __u8 expected_ack_seq;
- __u8 expected_tx_seq;
- __u8 buffer_seq;
- __u8 buffer_seq_srej;
- __u8 srej_save_reqseq;
- __u8 frames_sent;
- __u8 unacked_frames;
- __u8 retry_count;
- __u8 num_acked;
- __u16 sdu_len;
- __u16 partial_sdu_len;
- struct sk_buff *sdu;
-
- __u8 ident;
__u8 tx_win;
__u8 max_tx;
- __u8 remote_tx_win;
- __u8 remote_max_tx;
__u16 retrans_timeout;
__u16 monitor_timeout;
- __u16 remote_mps;
__u16 mps;
__le16 sport;
- struct timer_list retrans_timer;
- struct timer_list monitor_timer;
- struct timer_list ack_timer;
- struct sk_buff_head tx_queue;
- struct sk_buff_head srej_queue;
- struct sk_buff_head busy_queue;
- struct work_struct busy_work;
- struct srej_list srej_l;
struct l2cap_conn *conn;
- struct sock *next_c;
- struct sock *prev_c;
+ struct l2cap_chan *chan;
};
#define L2CAP_CONF_REQ_SENT 0x01
@@ -417,24 +413,23 @@ struct l2cap_pinfo {
#define L2CAP_CONN_RNR_SENT 0x0200
#define L2CAP_CONN_SAR_RETRY 0x0400
-#define __mod_retrans_timer() mod_timer(&l2cap_pi(sk)->retrans_timer, \
+#define __mod_retrans_timer() mod_timer(&chan->retrans_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_RETRANS_TO));
-#define __mod_monitor_timer() mod_timer(&l2cap_pi(sk)->monitor_timer, \
+#define __mod_monitor_timer() mod_timer(&chan->monitor_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_MONITOR_TO));
-#define __mod_ack_timer() mod_timer(&l2cap_pi(sk)->ack_timer, \
+#define __mod_ack_timer() mod_timer(&chan->ack_timer, \
jiffies + msecs_to_jiffies(L2CAP_DEFAULT_ACK_TO));
-static inline int l2cap_tx_window_full(struct sock *sk)
+static inline int l2cap_tx_window_full(struct l2cap_chan *ch)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
int sub;
- sub = (pi->next_tx_seq - pi->expected_ack_seq) % 64;
+ sub = (ch->next_tx_seq - ch->expected_ack_seq) % 64;
if (sub < 0)
sub += 64;
- return sub == pi->remote_tx_win;
+ return sub == ch->remote_tx_win;
}
#define __get_txseq(ctrl) (((ctrl) & L2CAP_CTRL_TXSEQ) >> 1)
@@ -450,18 +445,17 @@ extern struct bt_sock_list l2cap_sk_list;
int l2cap_init_sockets(void);
void l2cap_cleanup_sockets(void);
-u8 l2cap_get_ident(struct l2cap_conn *conn);
void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *data);
-int l2cap_build_conf_req(struct sock *sk, void *data);
+void __l2cap_connect_rsp_defer(struct sock *sk);
int __l2cap_wait_ack(struct sock *sk);
struct sk_buff *l2cap_create_connless_pdu(struct sock *sk, struct msghdr *msg, size_t len);
struct sk_buff *l2cap_create_basic_pdu(struct sock *sk, struct msghdr *msg, size_t len);
struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, size_t len, u16 control, u16 sdulen);
-int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len);
+int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len);
void l2cap_do_send(struct sock *sk, struct sk_buff *skb);
-void l2cap_streaming_send(struct sock *sk);
-int l2cap_ertm_send(struct sock *sk);
+void l2cap_streaming_send(struct l2cap_chan *chan);
+int l2cap_ertm_send(struct l2cap_chan *chan);
void l2cap_sock_set_timer(struct sock *sk, long timeout);
void l2cap_sock_clear_timer(struct sock *sk);
@@ -470,8 +464,8 @@ void l2cap_sock_kill(struct sock *sk);
void l2cap_sock_init(struct sock *sk, struct sock *parent);
struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
int proto, gfp_t prio);
-void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err);
-void l2cap_chan_del(struct sock *sk, int err);
+void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err);
+void l2cap_chan_del(struct l2cap_chan *chan, int err);
int l2cap_do_connect(struct sock *sk);
#endif /* __L2CAP_H */
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7a3398d9cd6..c7eb073fe63 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2497,6 +2497,9 @@ static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
hci_dev_lock(hdev);
+ if (!test_bit(HCI_MGMT, &hdev->flags))
+ goto unlock;
+
data = hci_find_remote_oob_data(hdev, &ev->bdaddr);
if (data) {
struct hci_cp_remote_oob_data_reply cp;
@@ -2515,6 +2518,7 @@ static inline void hci_remote_oob_data_request_evt(struct hci_dev *hdev,
&cp);
}
+unlock:
hci_dev_unlock(hdev);
}
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c3cebed205c..d47de2b04b2 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -70,108 +70,101 @@ static void l2cap_busy_work(struct work_struct *work);
static struct sk_buff *l2cap_build_cmd(struct l2cap_conn *conn,
u8 code, u8 ident, u16 dlen, void *data);
+static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data);
static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb);
/* ---- L2CAP channels ---- */
-static struct sock *__l2cap_get_chan_by_dcid(struct l2cap_chan_list *l, u16 cid)
+static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn, u16 cid)
{
- struct sock *s;
- for (s = l->head; s; s = l2cap_pi(s)->next_c) {
+ struct l2cap_chan *c;
+
+ list_for_each_entry(c, &conn->chan_l, list) {
+ struct sock *s = c->sk;
if (l2cap_pi(s)->dcid == cid)
- break;
+ return c;
}
- return s;
+ return NULL;
+
}
-static struct sock *__l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16 cid)
+static struct l2cap_chan *__l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 cid)
{
- struct sock *s;
- for (s = l->head; s; s = l2cap_pi(s)->next_c) {
+ struct l2cap_chan *c;
+
+ list_for_each_entry(c, &conn->chan_l, list) {
+ struct sock *s = c->sk;
if (l2cap_pi(s)->scid == cid)
- break;
+ return c;
}
- return s;
+ return NULL;
}
/* Find channel with given SCID.
* Returns locked socket */
-static inline struct sock *l2cap_get_chan_by_scid(struct l2cap_chan_list *l, u16 cid)
+static struct l2cap_chan *l2cap_get_chan_by_scid(struct l2cap_conn *conn, u16 cid)
{
- struct sock *s;
- read_lock(&l->lock);
- s = __l2cap_get_chan_by_scid(l, cid);
- if (s)
- bh_lock_sock(s);
- read_unlock(&l->lock);
- return s;
+ struct l2cap_chan *c;
+
+ read_lock(&conn->chan_lock);
+ c = __l2cap_get_chan_by_scid(conn, cid);
+ if (c)
+ bh_lock_sock(c->sk);
+ read_unlock(&conn->chan_lock);
+ return c;
}
-static struct sock *__l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8 ident)
+static struct l2cap_chan *__l2cap_get_chan_by_ident(struct l2cap_conn *conn, u8 ident)
{
- struct sock *s;
- for (s = l->head; s; s = l2cap_pi(s)->next_c) {
- if (l2cap_pi(s)->ident == ident)
- break;
+ struct l2cap_chan *c;
+
+ list_for_each_entry(c, &conn->chan_l, list) {
+ if (c->ident == ident)
+ return c;
}
- return s;
+ return NULL;
}
-static inline struct sock *l2cap_get_chan_by_ident(struct l2cap_chan_list *l, u8 ident)
+static inline struct l2cap_chan *l2cap_get_chan_by_ident(struct l2cap_conn *conn, u8 ident)
{
- struct sock *s;
- read_lock(&l->lock);
- s = __l2cap_get_chan_by_ident(l, ident);
- if (s)
- bh_lock_sock(s);
- read_unlock(&l->lock);
- return s;
+ struct l2cap_chan *c;
+
+ read_lock(&conn->chan_lock);
+ c = __l2cap_get_chan_by_ident(conn, ident);
+ if (c)
+ bh_lock_sock(c->sk);
+ read_unlock(&conn->chan_lock);
+ return c;
}
-static u16 l2cap_alloc_cid(struct l2cap_chan_list *l)
+static u16 l2cap_alloc_cid(struct l2cap_conn *conn)
{
u16 cid = L2CAP_CID_DYN_START;
for (; cid < L2CAP_CID_DYN_END; cid++) {
- if (!__l2cap_get_chan_by_scid(l, cid))
+ if (!__l2cap_get_chan_by_scid(conn, cid))
return cid;
}
return 0;
}
-static inline void __l2cap_chan_link(struct l2cap_chan_list *l, struct sock *sk)
+static struct l2cap_chan *l2cap_chan_alloc(struct sock *sk)
{
- sock_hold(sk);
-
- if (l->head)
- l2cap_pi(l->head)->prev_c = sk;
+ struct l2cap_chan *chan;
- l2cap_pi(sk)->next_c = l->head;
- l2cap_pi(sk)->prev_c = NULL;
- l->head = sk;
-}
-
-static inline void l2cap_chan_unlink(struct l2cap_chan_list *l, struct sock *sk)
-{
- struct sock *next = l2cap_pi(sk)->next_c, *prev = l2cap_pi(sk)->prev_c;
-
- write_lock_bh(&l->lock);
- if (sk == l->head)
- l->head = next;
+ chan = kzalloc(sizeof(*chan), GFP_ATOMIC);
+ if (!chan)
+ return NULL;
- if (next)
- l2cap_pi(next)->prev_c = prev;
- if (prev)
- l2cap_pi(prev)->next_c = next;
- write_unlock_bh(&l->lock);
+ chan->sk = sk;
- __sock_put(sk);
+ return chan;
}
-static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk)
+static void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
{
- struct l2cap_chan_list *l = &conn->chan_list;
+ struct sock *sk = chan->sk;
BT_DBG("conn %p, psm 0x%2.2x, dcid 0x%4.4x", conn,
l2cap_pi(sk)->psm, l2cap_pi(sk)->dcid);
@@ -188,7 +181,7 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk)
l2cap_pi(sk)->dcid = L2CAP_CID_LE_DATA;
} else {
/* Alloc CID for connection-oriented socket */
- l2cap_pi(sk)->scid = l2cap_alloc_cid(l);
+ l2cap_pi(sk)->scid = l2cap_alloc_cid(conn);
l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
}
} else if (sk->sk_type == SOCK_DGRAM) {
@@ -203,23 +196,30 @@ static void __l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk)
l2cap_pi(sk)->omtu = L2CAP_DEFAULT_MTU;
}
- __l2cap_chan_link(l, sk);
+ sock_hold(sk);
+
+ list_add(&chan->list, &conn->chan_l);
}
/* Delete channel.
* Must be called on the locked socket. */
-void l2cap_chan_del(struct sock *sk, int err)
+void l2cap_chan_del(struct l2cap_chan *chan, int err)
{
+ struct sock *sk = chan->sk;
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
struct sock *parent = bt_sk(sk)->parent;
l2cap_sock_clear_timer(sk);
- BT_DBG("sk %p, conn %p, err %d", sk, conn, err);
+ BT_DBG("chan %p, conn %p, err %d", chan, conn, err);
if (conn) {
- /* Unlink from channel list */
- l2cap_chan_unlink(&conn->chan_list, sk);
+ /* Delete from channel list */
+ write_lock_bh(&conn->chan_lock);
+ list_del(&chan->list);
+ write_unlock_bh(&conn->chan_lock);
+ __sock_put(sk);
+
l2cap_pi(sk)->conn = NULL;
hci_conn_put(conn->hcon);
}
@@ -236,23 +236,30 @@ void l2cap_chan_del(struct sock *sk, int err)
} else
sk->sk_state_change(sk);
- skb_queue_purge(TX_QUEUE(sk));
+ if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE &&
+ l2cap_pi(sk)->conf_state & L2CAP_CONF_INPUT_DONE))
+ goto free;
+
+ skb_queue_purge(&chan->tx_q);
if (l2cap_pi(sk)->mode == L2CAP_MODE_ERTM) {
struct srej_list *l, *tmp;
- del_timer(&l2cap_pi(sk)->retrans_timer);
- del_timer(&l2cap_pi(sk)->monitor_timer);
- del_timer(&l2cap_pi(sk)->ack_timer);
+ del_timer(&chan->retrans_timer);
+ del_timer(&chan->monitor_timer);
+ del_timer(&chan->ack_timer);
- skb_queue_purge(SREJ_QUEUE(sk));
- skb_queue_purge(BUSY_QUEUE(sk));
+ skb_queue_purge(&chan->srej_q);
+ skb_queue_purge(&chan->busy_q);
- list_for_each_entry_safe(l, tmp, SREJ_LIST(sk), list) {
+ list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
list_del(&l->list);
kfree(l);
}
}
+
+free:
+ kfree(chan);
}
static inline u8 l2cap_get_auth_type(struct sock *sk)
@@ -338,10 +345,11 @@ void l2cap_send_cmd(struct l2cap_conn *conn, u8 ident, u8 code, u16 len, void *d
hci_send_acl(conn->hcon, skb, flags);
}
-static inline void l2cap_send_sframe(struct l2cap_pinfo *pi, u16 control)
+static inline void l2cap_send_sframe(struct l2cap_chan *chan, u16 control)
{
struct sk_buff *skb;
struct l2cap_hdr *lh;
+ struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
struct l2cap_conn *conn = pi->conn;
struct sock *sk = (struct sock *)pi;
int count, hlen = L2CAP_HDR_SIZE + 2;
@@ -353,19 +361,19 @@ static inline void l2cap_send_sframe(struct l2cap_pinfo *pi, u16 control)
if (pi->fcs == L2CAP_FCS_CRC16)
hlen += 2;
- BT_DBG("pi %p, control 0x%2.2x", pi, control);
+ BT_DBG("chan %p, control 0x%2.2x", chan, control);
count = min_t(unsigned int, conn->mtu, hlen);
control |= L2CAP_CTRL_FRAME_TYPE;
- if (pi->conn_state & L2CAP_CONN_SEND_FBIT) {
+ if (chan->conn_state & L2CAP_CONN_SEND_FBIT) {
control |= L2CAP_CTRL_FINAL;
- pi->conn_state &= ~L2CAP_CONN_SEND_FBIT;
+ chan->conn_state &= ~L2CAP_CONN_SEND_FBIT;
}
- if (pi->conn_state & L2CAP_CONN_SEND_PBIT) {
+ if (chan->conn_state & L2CAP_CONN_SEND_PBIT) {
control |= L2CAP_CTRL_POLL;
- pi->conn_state &= ~L2CAP_CONN_SEND_PBIT;
+ chan->conn_state &= ~L2CAP_CONN_SEND_PBIT;
}
skb = bt_skb_alloc(count, GFP_ATOMIC);
@@ -390,17 +398,17 @@ static inline void l2cap_send_sframe(struct l2cap_pinfo *pi, u16 control)
hci_send_acl(pi->conn->hcon, skb, flags);
}
-static inline void l2cap_send_rr_or_rnr(struct l2cap_pinfo *pi, u16 control)
+static inline void l2cap_send_rr_or_rnr(struct l2cap_chan *chan, u16 control)
{
- if (pi->conn_state & L2CAP_CONN_LOCAL_BUSY) {
+ if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
control |= L2CAP_SUPER_RCV_NOT_READY;
- pi->conn_state |= L2CAP_CONN_RNR_SENT;
+ chan->conn_state |= L2CAP_CONN_RNR_SENT;
} else
control |= L2CAP_SUPER_RCV_READY;
- control |= pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ control |= chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- l2cap_send_sframe(pi, control);
+ l2cap_send_sframe(chan, control);
}
static inline int __l2cap_no_conn_pending(struct sock *sk)
@@ -408,8 +416,9 @@ static inline int __l2cap_no_conn_pending(struct sock *sk)
return !(l2cap_pi(sk)->conf_state & L2CAP_CONF_CONNECT_PEND);
}
-static void l2cap_do_start(struct sock *sk)
+static void l2cap_do_start(struct l2cap_chan *chan)
{
+ struct sock *sk = chan->sk;
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_SENT) {
@@ -421,11 +430,11 @@ static void l2cap_do_start(struct sock *sk)
req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
- l2cap_pi(sk)->ident = l2cap_get_ident(conn);
+ chan->ident = l2cap_get_ident(conn);
l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
- l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
- L2CAP_CONN_REQ, sizeof(req), &req);
+ l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ,
+ sizeof(req), &req);
}
} else {
struct l2cap_info_req req;
@@ -458,19 +467,20 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
}
}
-void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err)
+void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *chan, int err)
{
+ struct sock *sk;
struct l2cap_disconn_req req;
if (!conn)
return;
- skb_queue_purge(TX_QUEUE(sk));
+ sk = chan->sk;
if (l2cap_pi(sk)->mode == L2CAP_MODE_ERTM) {
- del_timer(&l2cap_pi(sk)->retrans_timer);
- del_timer(&l2cap_pi(sk)->monitor_timer);
- del_timer(&l2cap_pi(sk)->ack_timer);
+ del_timer(&chan->retrans_timer);
+ del_timer(&chan->monitor_timer);
+ del_timer(&chan->ack_timer);
}
req.dcid = cpu_to_le16(l2cap_pi(sk)->dcid);
@@ -485,17 +495,15 @@ void l2cap_send_disconn_req(struct l2cap_conn *conn, struct sock *sk, int err)
/* ---- L2CAP connections ---- */
static void l2cap_conn_start(struct l2cap_conn *conn)
{
- struct l2cap_chan_list *l = &conn->chan_list;
- struct sock_del_list del, *tmp1, *tmp2;
- struct sock *sk;
+ struct l2cap_chan *chan, *tmp;
BT_DBG("conn %p", conn);
- INIT_LIST_HEAD(&del.list);
+ read_lock(&conn->chan_lock);
- read_lock(&l->lock);
+ list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) {
+ struct sock *sk = chan->sk;
- for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
bh_lock_sock(sk);
if (sk->sk_type != SOCK_SEQPACKET &&
@@ -517,10 +525,11 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
conn->feat_mask)
&& l2cap_pi(sk)->conf_state &
L2CAP_CONF_STATE2_DEVICE) {
- tmp1 = kzalloc(sizeof(struct sock_del_list),
- GFP_ATOMIC);
- tmp1->sk = sk;
- list_add_tail(&tmp1->list, &del.list);
+ /* __l2cap_sock_close() calls list_del(chan)
+ * so release the lock */
+ read_unlock_bh(&conn->chan_lock);
+ __l2cap_sock_close(sk, ECONNRESET);
+ read_lock_bh(&conn->chan_lock);
bh_unlock_sock(sk);
continue;
}
@@ -528,11 +537,11 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
- l2cap_pi(sk)->ident = l2cap_get_ident(conn);
+ chan->ident = l2cap_get_ident(conn);
l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
- l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
- L2CAP_CONN_REQ, sizeof(req), &req);
+ l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_REQ,
+ sizeof(req), &req);
} else if (sk->sk_state == BT_CONNECT2) {
struct l2cap_conn_rsp rsp;
@@ -557,8 +566,8 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
rsp.status = cpu_to_le16(L2CAP_CS_AUTHEN_PEND);
}
- l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
- L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+ l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+ sizeof(rsp), &rsp);
if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT ||
rsp.result != L2CAP_CR_SUCCESS) {
@@ -568,22 +577,14 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
- l2cap_build_conf_req(sk, buf), buf);
- l2cap_pi(sk)->num_conf_req++;
+ l2cap_build_conf_req(chan, buf), buf);
+ chan->num_conf_req++;
}
bh_unlock_sock(sk);
}
- read_unlock(&l->lock);
-
- list_for_each_entry_safe(tmp1, tmp2, &del.list, list) {
- bh_lock_sock(tmp1->sk);
- __l2cap_sock_close(tmp1->sk, ECONNRESET);
- bh_unlock_sock(tmp1->sk);
- list_del(&tmp1->list);
- kfree(tmp1);
- }
+ read_unlock(&conn->chan_lock);
}
/* Find socket with cid and source bdaddr.
@@ -591,7 +592,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
*/
static struct sock *l2cap_get_sock_by_scid(int state, __le16 cid, bdaddr_t *src)
{
- struct sock *s, *sk = NULL, *sk1 = NULL;
+ struct sock *sk = NULL, *sk1 = NULL;
struct hlist_node *node;
read_lock(&l2cap_sk_list.lock);
@@ -610,18 +611,16 @@ static struct sock *l2cap_get_sock_by_scid(int state, __le16 cid, bdaddr_t *src)
sk1 = sk;
}
}
- s = node ? sk : sk1;
- if (s)
- bh_lock_sock(s);
+
read_unlock(&l2cap_sk_list.lock);
- return s;
+ return node ? sk : sk1;
}
static void l2cap_le_conn_ready(struct l2cap_conn *conn)
{
- struct l2cap_chan_list *list = &conn->chan_list;
- struct sock *parent, *uninitialized_var(sk);
+ struct sock *parent, *sk;
+ struct l2cap_chan *chan;
BT_DBG("");
@@ -631,6 +630,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
if (!parent)
return;
+ bh_lock_sock(parent);
+
/* Check for backlog size */
if (sk_acceptq_is_full(parent)) {
BT_DBG("backlog full %d", parent->sk_ack_backlog);
@@ -641,24 +642,33 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
if (!sk)
goto clean;
- write_lock_bh(&list->lock);
+ chan = l2cap_chan_alloc(sk);
+ if (!chan) {
+ l2cap_sock_kill(sk);
+ goto clean;
+ }
+
+ write_lock_bh(&conn->chan_lock);
hci_conn_hold(conn->hcon);
l2cap_sock_init(sk, parent);
+
bacpy(&bt_sk(sk)->src, conn->src);
bacpy(&bt_sk(sk)->dst, conn->dst);
bt_accept_enqueue(parent, sk);
- __l2cap_chan_add(conn, sk);
+ __l2cap_chan_add(conn, chan);
+
+ l2cap_pi(sk)->chan = chan;
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
sk->sk_state = BT_CONNECTED;
parent->sk_data_ready(parent, 0);
- write_unlock_bh(&list->lock);
+ write_unlock_bh(&conn->chan_lock);
clean:
bh_unlock_sock(parent);
@@ -666,17 +676,18 @@ clean:
static void l2cap_conn_ready(struct l2cap_conn *conn)
{
- struct l2cap_chan_list *l = &conn->chan_list;
- struct sock *sk;
+ struct l2cap_chan *chan;
BT_DBG("conn %p", conn);
if (!conn->hcon->out && conn->hcon->type == LE_LINK)
l2cap_le_conn_ready(conn);
- read_lock(&l->lock);
+ read_lock(&conn->chan_lock);
+
+ list_for_each_entry(chan, &conn->chan_l, list) {
+ struct sock *sk = chan->sk;
- for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
bh_lock_sock(sk);
if (conn->hcon->type == LE_LINK) {
@@ -691,30 +702,31 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
sk->sk_state = BT_CONNECTED;
sk->sk_state_change(sk);
} else if (sk->sk_state == BT_CONNECT)
- l2cap_do_start(sk);
+ l2cap_do_start(chan);
bh_unlock_sock(sk);
}
- read_unlock(&l->lock);
+ read_unlock(&conn->chan_lock);
}
/* Notify sockets that we cannot guaranty reliability anymore */
static void l2cap_conn_unreliable(struct l2cap_conn *conn, int err)
{
- struct l2cap_chan_list *l = &conn->chan_list;
- struct sock *sk;
+ struct l2cap_chan *chan;
BT_DBG("conn %p", conn);
- read_lock(&l->lock);
+ read_lock(&conn->chan_lock);
+
+ list_for_each_entry(chan, &conn->chan_l, list) {
+ struct sock *sk = chan->sk;
- for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
if (l2cap_pi(sk)->force_reliable)
sk->sk_err = err;
}
- read_unlock(&l->lock);
+ read_unlock(&conn->chan_lock);
}
static void l2cap_info_timeout(unsigned long arg)
@@ -754,7 +766,9 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
conn->feat_mask = 0;
spin_lock_init(&conn->lock);
- rwlock_init(&conn->chan_list.lock);
+ rwlock_init(&conn->chan_lock);
+
+ INIT_LIST_HEAD(&conn->chan_l);
if (hcon->type != LE_LINK)
setup_timer(&conn->info_timer, l2cap_info_timeout,
@@ -768,6 +782,7 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status)
static void l2cap_conn_del(struct hci_conn *hcon, int err)
{
struct l2cap_conn *conn = hcon->l2cap_data;
+ struct l2cap_chan *chan, *l;
struct sock *sk;
if (!conn)
@@ -778,9 +793,10 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
kfree_skb(conn->rx_skb);
/* Kill channels */
- while ((sk = conn->chan_list.head)) {
+ list_for_each_entry_safe(chan, l, &conn->chan_l, list) {
+ sk = chan->sk;
bh_lock_sock(sk);
- l2cap_chan_del(sk, err);
+ l2cap_chan_del(chan, err);
bh_unlock_sock(sk);
l2cap_sock_kill(sk);
}
@@ -792,12 +808,11 @@ static void l2cap_conn_del(struct hci_conn *hcon, int err)
kfree(conn);
}
-static inline void l2cap_chan_add(struct l2cap_conn *conn, struct sock *sk)
+static inline void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan)
{
- struct l2cap_chan_list *l = &conn->chan_list;
- write_lock_bh(&l->lock);
- __l2cap_chan_add(conn, sk);
- write_unlock_bh(&l->lock);
+ write_lock_bh(&conn->chan_lock);
+ __l2cap_chan_add(conn, chan);
+ write_unlock_bh(&conn->chan_lock);
}
/* ---- Socket interface ---- */
@@ -837,6 +852,7 @@ int l2cap_do_connect(struct sock *sk)
bdaddr_t *src = &bt_sk(sk)->src;
bdaddr_t *dst = &bt_sk(sk)->dst;
struct l2cap_conn *conn;
+ struct l2cap_chan *chan;
struct hci_conn *hcon;
struct hci_dev *hdev;
__u8 auth_type;
@@ -872,10 +888,19 @@ int l2cap_do_connect(struct sock *sk)
goto done;
}
+ chan = l2cap_chan_alloc(sk);
+ if (!chan) {
+ hci_conn_put(hcon);
+ err = -ENOMEM;
+ goto done;
+ }
+
/* Update source addr of the socket */
bacpy(src, conn->src);
- l2cap_chan_add(conn, sk);
+ l2cap_chan_add(conn, chan);
+
+ l2cap_pi(sk)->chan = chan;
sk->sk_state = BT_CONNECT;
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
@@ -887,7 +912,7 @@ int l2cap_do_connect(struct sock *sk)
if (l2cap_check_security(sk))
sk->sk_state = BT_CONNECTED;
} else
- l2cap_do_start(sk);
+ l2cap_do_start(chan);
}
err = 0;
@@ -905,7 +930,7 @@ int __l2cap_wait_ack(struct sock *sk)
int timeo = HZ/5;
add_wait_queue(sk_sleep(sk), &wait);
- while ((l2cap_pi(sk)->unacked_frames > 0 && l2cap_pi(sk)->conn)) {
+ while ((l2cap_pi(sk)->chan->unacked_frames > 0 && l2cap_pi(sk)->conn)) {
set_current_state(TASK_INTERRUPTIBLE);
if (!timeo)
@@ -931,57 +956,59 @@ int __l2cap_wait_ack(struct sock *sk)
static void l2cap_monitor_timeout(unsigned long arg)
{
- struct sock *sk = (void *) arg;
+ struct l2cap_chan *chan = (void *) arg;
+ struct sock *sk = chan->sk;
- BT_DBG("sk %p", sk);
+ BT_DBG("chan %p", chan);
bh_lock_sock(sk);
- if (l2cap_pi(sk)->retry_count >= l2cap_pi(sk)->remote_max_tx) {
- l2cap_send_disconn_req(l2cap_pi(sk)->conn, sk, ECONNABORTED);
+ if (chan->retry_count >= chan->remote_max_tx) {
+ l2cap_send_disconn_req(l2cap_pi(sk)->conn, chan, ECONNABORTED);
bh_unlock_sock(sk);
return;
}
- l2cap_pi(sk)->retry_count++;
+ chan->retry_count++;
__mod_monitor_timer();
- l2cap_send_rr_or_rnr(l2cap_pi(sk), L2CAP_CTRL_POLL);
+ l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
bh_unlock_sock(sk);
}
static void l2cap_retrans_timeout(unsigned long arg)
{
- struct sock *sk = (void *) arg;
+ struct l2cap_chan *chan = (void *) arg;
+ struct sock *sk = chan->sk;
- BT_DBG("sk %p", sk);
+ BT_DBG("chan %p", chan);
bh_lock_sock(sk);
- l2cap_pi(sk)->retry_count = 1;
+ chan->retry_count = 1;
__mod_monitor_timer();
- l2cap_pi(sk)->conn_state |= L2CAP_CONN_WAIT_F;
+ chan->conn_state |= L2CAP_CONN_WAIT_F;
- l2cap_send_rr_or_rnr(l2cap_pi(sk), L2CAP_CTRL_POLL);
+ l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_POLL);
bh_unlock_sock(sk);
}
-static void l2cap_drop_acked_frames(struct sock *sk)
+static void l2cap_drop_acked_frames(struct l2cap_chan *chan)
{
struct sk_buff *skb;
- while ((skb = skb_peek(TX_QUEUE(sk))) &&
- l2cap_pi(sk)->unacked_frames) {
- if (bt_cb(skb)->tx_seq == l2cap_pi(sk)->expected_ack_seq)
+ while ((skb = skb_peek(&chan->tx_q)) &&
+ chan->unacked_frames) {
+ if (bt_cb(skb)->tx_seq == chan->expected_ack_seq)
break;
- skb = skb_dequeue(TX_QUEUE(sk));
+ skb = skb_dequeue(&chan->tx_q);
kfree_skb(skb);
- l2cap_pi(sk)->unacked_frames--;
+ chan->unacked_frames--;
}
- if (!l2cap_pi(sk)->unacked_frames)
- del_timer(&l2cap_pi(sk)->retrans_timer);
+ if (!chan->unacked_frames)
+ del_timer(&chan->retrans_timer);
}
void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
@@ -1000,15 +1027,16 @@ void l2cap_do_send(struct sock *sk, struct sk_buff *skb)
hci_send_acl(hcon, skb, flags);
}
-void l2cap_streaming_send(struct sock *sk)
+void l2cap_streaming_send(struct l2cap_chan *chan)
{
+ struct sock *sk = chan->sk;
struct sk_buff *skb;
struct l2cap_pinfo *pi = l2cap_pi(sk);
u16 control, fcs;
- while ((skb = skb_dequeue(TX_QUEUE(sk)))) {
+ while ((skb = skb_dequeue(&chan->tx_q))) {
control = get_unaligned_le16(skb->data + L2CAP_HDR_SIZE);
- control |= pi->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT;
+ control |= chan->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT;
put_unaligned_le16(control, skb->data + L2CAP_HDR_SIZE);
if (pi->fcs == L2CAP_FCS_CRC16) {
@@ -1018,17 +1046,18 @@ void l2cap_streaming_send(struct sock *sk)
l2cap_do_send(sk, skb);
- pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
+ chan->next_tx_seq = (chan->next_tx_seq + 1) % 64;
}
}
-static void l2cap_retransmit_one_frame(struct sock *sk, u8 tx_seq)
+static void l2cap_retransmit_one_frame(struct l2cap_chan *chan, u8 tx_seq)
{
+ struct sock *sk = chan->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
struct sk_buff *skb, *tx_skb;
u16 control, fcs;
- skb = skb_peek(TX_QUEUE(sk));
+ skb = skb_peek(&chan->tx_q);
if (!skb)
return;
@@ -1036,14 +1065,14 @@ static void l2cap_retransmit_one_frame(struct sock *sk, u8 tx_seq)
if (bt_cb(skb)->tx_seq == tx_seq)
break;
- if (skb_queue_is_last(TX_QUEUE(sk), skb))
+ if (skb_queue_is_last(&chan->tx_q, skb))
return;
- } while ((skb = skb_queue_next(TX_QUEUE(sk), skb)));
+ } while ((skb = skb_queue_next(&chan->tx_q, skb)));
- if (pi->remote_max_tx &&
- bt_cb(skb)->retries == pi->remote_max_tx) {
- l2cap_send_disconn_req(pi->conn, sk, ECONNABORTED);
+ if (chan->remote_max_tx &&
+ bt_cb(skb)->retries == chan->remote_max_tx) {
+ l2cap_send_disconn_req(pi->conn, chan, ECONNABORTED);
return;
}
@@ -1051,12 +1080,12 @@ static void l2cap_retransmit_one_frame(struct sock *sk, u8 tx_seq)
bt_cb(skb)->retries++;
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
- if (pi->conn_state & L2CAP_CONN_SEND_FBIT) {
+ if (chan->conn_state & L2CAP_CONN_SEND_FBIT) {
control |= L2CAP_CTRL_FINAL;
- pi->conn_state &= ~L2CAP_CONN_SEND_FBIT;
+ chan->conn_state &= ~L2CAP_CONN_SEND_FBIT;
}
- control |= (pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
+ control |= (chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
| (tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
@@ -1069,9 +1098,10 @@ static void l2cap_retransmit_one_frame(struct sock *sk, u8 tx_seq)
l2cap_do_send(sk, tx_skb);
}
-int l2cap_ertm_send(struct sock *sk)
+int l2cap_ertm_send(struct l2cap_chan *chan)
{
struct sk_buff *skb, *tx_skb;
+ struct sock *sk = chan->sk;
struct l2cap_pinfo *pi = l2cap_pi(sk);
u16 control, fcs;
int nsent = 0;
@@ -1079,11 +1109,11 @@ int l2cap_ertm_send(struct sock *sk)
if (sk->sk_state != BT_CONNECTED)
return -ENOTCONN;
- while ((skb = sk->sk_send_head) && (!l2cap_tx_window_full(sk))) {
+ while ((skb = chan->tx_send_head) && (!l2cap_tx_window_full(chan))) {
- if (pi->remote_max_tx &&
- bt_cb(skb)->retries == pi->remote_max_tx) {
- l2cap_send_disconn_req(pi->conn, sk, ECONNABORTED);
+ if (chan->remote_max_tx &&
+ bt_cb(skb)->retries == chan->remote_max_tx) {
+ l2cap_send_disconn_req(pi->conn, chan, ECONNABORTED);
break;
}
@@ -1094,12 +1124,12 @@ int l2cap_ertm_send(struct sock *sk)
control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);
control &= L2CAP_CTRL_SAR;
- if (pi->conn_state & L2CAP_CONN_SEND_FBIT) {
+ if (chan->conn_state & L2CAP_CONN_SEND_FBIT) {
control |= L2CAP_CTRL_FINAL;
- pi->conn_state &= ~L2CAP_CONN_SEND_FBIT;
+ chan->conn_state &= ~L2CAP_CONN_SEND_FBIT;
}
- control |= (pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
- | (pi->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
+ control |= (chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT)
+ | (chan->next_tx_seq << L2CAP_CTRL_TXSEQ_SHIFT);
put_unaligned_le16(control, tx_skb->data + L2CAP_HDR_SIZE);
@@ -1112,18 +1142,18 @@ int l2cap_ertm_send(struct sock *sk)
__mod_retrans_timer();
- bt_cb(skb)->tx_seq = pi->next_tx_seq;
- pi->next_tx_seq = (pi->next_tx_seq + 1) % 64;
+ bt_cb(skb)->tx_seq = chan->next_tx_seq;
+ chan->next_tx_seq = (chan->next_tx_seq + 1) % 64;
if (bt_cb(skb)->retries == 1)
- pi->unacked_frames++;
+ chan->unacked_frames++;
- pi->frames_sent++;
+ chan->frames_sent++;
- if (skb_queue_is_last(TX_QUEUE(sk), skb))
- sk->sk_send_head = NULL;
+ if (skb_queue_is_last(&chan->tx_q, skb))
+ chan->tx_send_head = NULL;
else
- sk->sk_send_head = skb_queue_next(TX_QUEUE(sk), skb);
+ chan->tx_send_head = skb_queue_next(&chan->tx_q, skb);
nsent++;
}
@@ -1131,41 +1161,39 @@ int l2cap_ertm_send(struct sock *sk)
return nsent;
}
-static int l2cap_retransmit_frames(struct sock *sk)
+static int l2cap_retransmit_frames(struct l2cap_chan *chan)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
int ret;
- if (!skb_queue_empty(TX_QUEUE(sk)))
- sk->sk_send_head = TX_QUEUE(sk)->next;
+ if (!skb_queue_empty(&chan->tx_q))
+ chan->tx_send_head = chan->tx_q.next;
- pi->next_tx_seq = pi->expected_ack_seq;
- ret = l2cap_ertm_send(sk);
+ chan->next_tx_seq = chan->expected_ack_seq;
+ ret = l2cap_ertm_send(chan);
return ret;
}
-static void l2cap_send_ack(struct l2cap_pinfo *pi)
+static void l2cap_send_ack(struct l2cap_chan *chan)
{
- struct sock *sk = (struct sock *)pi;
u16 control = 0;
- control |= pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ control |= chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- if (pi->conn_state & L2CAP_CONN_LOCAL_BUSY) {
+ if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
control |= L2CAP_SUPER_RCV_NOT_READY;
- pi->conn_state |= L2CAP_CONN_RNR_SENT;
- l2cap_send_sframe(pi, control);
+ chan->conn_state |= L2CAP_CONN_RNR_SENT;
+ l2cap_send_sframe(chan, control);
return;
}
- if (l2cap_ertm_send(sk) > 0)
+ if (l2cap_ertm_send(chan) > 0)
return;
control |= L2CAP_SUPER_RCV_READY;
- l2cap_send_sframe(pi, control);
+ l2cap_send_sframe(chan, control);
}
-static void l2cap_send_srejtail(struct sock *sk)
+static void l2cap_send_srejtail(struct l2cap_chan *chan)
{
struct srej_list *tail;
u16 control;
@@ -1173,10 +1201,10 @@ static void l2cap_send_srejtail(struct sock *sk)
control = L2CAP_SUPER_SELECT_REJECT;
control |= L2CAP_CTRL_FINAL;
- tail = list_entry(SREJ_LIST(sk)->prev, struct srej_list, list);
+ tail = list_entry((&chan->srej_l)->prev, struct srej_list, list);
control |= tail->tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- l2cap_send_sframe(l2cap_pi(sk), control);
+ l2cap_send_sframe(chan, control);
}
static inline int l2cap_skbuff_fromiovec(struct sock *sk, struct msghdr *msg, int len, int count, struct sk_buff *skb)
@@ -1313,9 +1341,9 @@ struct sk_buff *l2cap_create_iframe_pdu(struct sock *sk, struct msghdr *msg, siz
return skb;
}
-int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len)
+int l2cap_sar_segment_sdu(struct l2cap_chan *chan, struct msghdr *msg, size_t len)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct sock *sk = chan->sk;
struct sk_buff *skb;
struct sk_buff_head sar_queue;
u16 control;
@@ -1323,20 +1351,20 @@ int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len)
skb_queue_head_init(&sar_queue);
control = L2CAP_SDU_START;
- skb = l2cap_create_iframe_pdu(sk, msg, pi->remote_mps, control, len);
+ skb = l2cap_create_iframe_pdu(sk, msg, chan->remote_mps, control, len);
if (IS_ERR(skb))
return PTR_ERR(skb);
__skb_queue_tail(&sar_queue, skb);
- len -= pi->remote_mps;
- size += pi->remote_mps;
+ len -= chan->remote_mps;
+ size += chan->remote_mps;
while (len > 0) {
size_t buflen;
- if (len > pi->remote_mps) {
+ if (len > chan->remote_mps) {
control = L2CAP_SDU_CONTINUE;
- buflen = pi->remote_mps;
+ buflen = chan->remote_mps;
} else {
control = L2CAP_SDU_END;
buflen = len;
@@ -1352,9 +1380,9 @@ int l2cap_sar_segment_sdu(struct sock *sk, struct msghdr *msg, size_t len)
len -= buflen;
size += buflen;
}
- skb_queue_splice_tail(&sar_queue, TX_QUEUE(sk));
- if (sk->sk_send_head == NULL)
- sk->sk_send_head = sar_queue.next;
+ skb_queue_splice_tail(&sar_queue, &chan->tx_q);
+ if (chan->tx_send_head == NULL)
+ chan->tx_send_head = sar_queue.next;
return size;
}
@@ -1385,14 +1413,14 @@ static void l2cap_chan_ready(struct sock *sk)
/* Copy frame to all raw sockets on that connection */
static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
{
- struct l2cap_chan_list *l = &conn->chan_list;
struct sk_buff *nskb;
- struct sock *sk;
+ struct l2cap_chan *chan;
BT_DBG("conn %p", conn);
- read_lock(&l->lock);
- for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
+ read_lock(&conn->chan_lock);
+ list_for_each_entry(chan, &conn->chan_l, list) {
+ struct sock *sk = chan->sk;
if (sk->sk_type != SOCK_RAW)
continue;
@@ -1406,7 +1434,7 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
if (sock_queue_rcv_skb(sk, nskb))
kfree_skb(nskb);
}
- read_unlock(&l->lock);
+ read_unlock(&conn->chan_lock);
}
/* ---- L2CAP signalling commands ---- */
@@ -1538,32 +1566,35 @@ static void l2cap_add_conf_opt(void **ptr, u8 type, u8 len, unsigned long val)
static void l2cap_ack_timeout(unsigned long arg)
{
- struct sock *sk = (void *) arg;
+ struct l2cap_chan *chan = (void *) arg;
- bh_lock_sock(sk);
- l2cap_send_ack(l2cap_pi(sk));
- bh_unlock_sock(sk);
+ bh_lock_sock(chan->sk);
+ l2cap_send_ack(chan);
+ bh_unlock_sock(chan->sk);
}
-static inline void l2cap_ertm_init(struct sock *sk)
+static inline void l2cap_ertm_init(struct l2cap_chan *chan)
{
- l2cap_pi(sk)->expected_ack_seq = 0;
- l2cap_pi(sk)->unacked_frames = 0;
- l2cap_pi(sk)->buffer_seq = 0;
- l2cap_pi(sk)->num_acked = 0;
- l2cap_pi(sk)->frames_sent = 0;
+ struct sock *sk = chan->sk;
+
+ chan->expected_ack_seq = 0;
+ chan->unacked_frames = 0;
+ chan->buffer_seq = 0;
+ chan->num_acked = 0;
+ chan->frames_sent = 0;
- setup_timer(&l2cap_pi(sk)->retrans_timer,
- l2cap_retrans_timeout, (unsigned long) sk);
- setup_timer(&l2cap_pi(sk)->monitor_timer,
- l2cap_monitor_timeout, (unsigned long) sk);
- setup_timer(&l2cap_pi(sk)->ack_timer,
- l2cap_ack_timeout, (unsigned long) sk);
+ setup_timer(&chan->retrans_timer, l2cap_retrans_timeout,
+ (unsigned long) chan);
+ setup_timer(&chan->monitor_timer, l2cap_monitor_timeout,
+ (unsigned long) chan);
+ setup_timer(&chan->ack_timer, l2cap_ack_timeout, (unsigned long) chan);
- __skb_queue_head_init(SREJ_QUEUE(sk));
- __skb_queue_head_init(BUSY_QUEUE(sk));
+ skb_queue_head_init(&chan->srej_q);
+ skb_queue_head_init(&chan->busy_q);
- INIT_WORK(&l2cap_pi(sk)->busy_work, l2cap_busy_work);
+ INIT_LIST_HEAD(&chan->srej_l);
+
+ INIT_WORK(&chan->busy_work, l2cap_busy_work);
sk->sk_backlog_rcv = l2cap_ertm_data_rcv;
}
@@ -1581,16 +1612,16 @@ static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask)
}
}
-int l2cap_build_conf_req(struct sock *sk, void *data)
+static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
struct l2cap_conf_req *req = data;
struct l2cap_conf_rfc rfc = { .mode = pi->mode };
void *ptr = req->data;
- BT_DBG("sk %p", sk);
+ BT_DBG("chan %p", chan);
- if (pi->num_conf_req || pi->num_conf_rsp)
+ if (chan->num_conf_req || chan->num_conf_rsp)
goto done;
switch (pi->mode) {
@@ -1679,20 +1710,20 @@ done:
return ptr - data;
}
-static int l2cap_parse_conf_req(struct sock *sk, void *data)
+static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
struct l2cap_conf_rsp *rsp = data;
void *ptr = rsp->data;
- void *req = pi->conf_req;
- int len = pi->conf_len;
+ void *req = chan->conf_req;
+ int len = chan->conf_len;
int type, hint, olen;
unsigned long val;
struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC };
u16 mtu = L2CAP_DEFAULT_MTU;
u16 result = L2CAP_CONF_SUCCESS;
- BT_DBG("sk %p", sk);
+ BT_DBG("chan %p", chan);
while (len >= L2CAP_CONF_OPT_SIZE) {
len -= l2cap_get_conf_opt(&req, &type, &olen, &val);
@@ -1733,7 +1764,7 @@ static int l2cap_parse_conf_req(struct sock *sk, void *data)
}
}
- if (pi->num_conf_rsp || pi->num_conf_req > 1)
+ if (chan->num_conf_rsp || chan->num_conf_req > 1)
goto done;
switch (pi->mode) {
@@ -1756,7 +1787,7 @@ done:
result = L2CAP_CONF_UNACCEPT;
rfc.mode = pi->mode;
- if (pi->num_conf_rsp == 1)
+ if (chan->num_conf_rsp == 1)
return -ECONNREFUSED;
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
@@ -1783,13 +1814,13 @@ done:
break;
case L2CAP_MODE_ERTM:
- pi->remote_tx_win = rfc.txwin_size;
- pi->remote_max_tx = rfc.max_transmit;
+ chan->remote_tx_win = rfc.txwin_size;
+ chan->remote_max_tx = rfc.max_transmit;
if (le16_to_cpu(rfc.max_pdu_size) > pi->conn->mtu - 10)
rfc.max_pdu_size = cpu_to_le16(pi->conn->mtu - 10);
- pi->remote_mps = le16_to_cpu(rfc.max_pdu_size);
+ chan->remote_mps = le16_to_cpu(rfc.max_pdu_size);
rfc.retrans_timeout =
le16_to_cpu(L2CAP_DEFAULT_RETRANS_TO);
@@ -1807,7 +1838,7 @@ done:
if (le16_to_cpu(rfc.max_pdu_size) > pi->conn->mtu - 10)
rfc.max_pdu_size = cpu_to_le16(pi->conn->mtu - 10);
- pi->remote_mps = le16_to_cpu(rfc.max_pdu_size);
+ chan->remote_mps = le16_to_cpu(rfc.max_pdu_size);
pi->conf_state |= L2CAP_CONF_MODE_DONE;
@@ -1916,6 +1947,31 @@ static int l2cap_build_conf_rsp(struct sock *sk, void *data, u16 result, u16 fla
return ptr - data;
}
+void __l2cap_connect_rsp_defer(struct sock *sk)
+{
+ struct l2cap_conn_rsp rsp;
+ struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+ u8 buf[128];
+
+ sk->sk_state = BT_CONFIG;
+
+ rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
+ rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
+ rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
+ rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
+ l2cap_send_cmd(conn, chan->ident,
+ L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+
+ if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT)
+ return;
+
+ l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
+ l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
+ l2cap_build_conf_req(chan, buf), buf);
+ chan->num_conf_req++;
+}
+
static void l2cap_conf_rfc_get(struct sock *sk, void *rsp, int len)
{
struct l2cap_pinfo *pi = l2cap_pi(sk);
@@ -1973,9 +2029,9 @@ static inline int l2cap_command_rej(struct l2cap_conn *conn, struct l2cap_cmd_hd
static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr *cmd, u8 *data)
{
- struct l2cap_chan_list *list = &conn->chan_list;
struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
struct l2cap_conn_rsp rsp;
+ struct l2cap_chan *chan = NULL;
struct sock *parent, *sk = NULL;
int result, status = L2CAP_CS_NO_INFO;
@@ -2013,11 +2069,17 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
if (!sk)
goto response;
- write_lock_bh(&list->lock);
+ chan = l2cap_chan_alloc(sk);
+ if (!chan) {
+ l2cap_sock_kill(sk);
+ goto response;
+ }
+
+ write_lock_bh(&conn->chan_lock);
/* Check if we already have channel with that dcid */
- if (__l2cap_get_chan_by_dcid(list, scid)) {
- write_unlock_bh(&list->lock);
+ if (__l2cap_get_chan_by_dcid(conn, scid)) {
+ write_unlock_bh(&conn->chan_lock);
sock_set_flag(sk, SOCK_ZAPPED);
l2cap_sock_kill(sk);
goto response;
@@ -2033,12 +2095,15 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
bt_accept_enqueue(parent, sk);
- __l2cap_chan_add(conn, sk);
+ __l2cap_chan_add(conn, chan);
+
+ l2cap_pi(sk)->chan = chan;
+
dcid = l2cap_pi(sk)->scid;
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
- l2cap_pi(sk)->ident = cmd->ident;
+ chan->ident = cmd->ident;
if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
if (l2cap_check_security(sk)) {
@@ -2063,7 +2128,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
status = L2CAP_CS_NO_INFO;
}
- write_unlock_bh(&list->lock);
+ write_unlock_bh(&conn->chan_lock);
response:
bh_unlock_sock(parent);
@@ -2089,13 +2154,13 @@ sendresp:
L2CAP_INFO_REQ, sizeof(info), &info);
}
- if (sk && !(l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) &&
+ if (chan && !(l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) &&
result == L2CAP_CR_SUCCESS) {
u8 buf[128];
l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
- l2cap_build_conf_req(sk, buf), buf);
- l2cap_pi(sk)->num_conf_req++;
+ l2cap_build_conf_req(chan, buf), buf);
+ chan->num_conf_req++;
}
return 0;
@@ -2105,6 +2170,7 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
{
struct l2cap_conn_rsp *rsp = (struct l2cap_conn_rsp *) data;
u16 scid, dcid, result, status;
+ struct l2cap_chan *chan;
struct sock *sk;
u8 req[128];
@@ -2116,19 +2182,21 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
BT_DBG("dcid 0x%4.4x scid 0x%4.4x result 0x%2.2x status 0x%2.2x", dcid, scid, result, status);
if (scid) {
- sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
- if (!sk)
+ chan = l2cap_get_chan_by_scid(conn, scid);
+ if (!chan)
return -EFAULT;
} else {
- sk = l2cap_get_chan_by_ident(&conn->chan_list, cmd->ident);
- if (!sk)
+ chan = l2cap_get_chan_by_ident(conn, cmd->ident);
+ if (!chan)
return -EFAULT;
}
+ sk = chan->sk;
+
switch (result) {
case L2CAP_CR_SUCCESS:
sk->sk_state = BT_CONFIG;
- l2cap_pi(sk)->ident = 0;
+ chan->ident = 0;
l2cap_pi(sk)->dcid = dcid;
l2cap_pi(sk)->conf_state &= ~L2CAP_CONF_CONNECT_PEND;
@@ -2138,8 +2206,8 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
- l2cap_build_conf_req(sk, req), req);
- l2cap_pi(sk)->num_conf_req++;
+ l2cap_build_conf_req(chan, req), req);
+ chan->num_conf_req++;
break;
case L2CAP_CR_PEND:
@@ -2155,7 +2223,7 @@ static inline int l2cap_connect_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hd
break;
}
- l2cap_chan_del(sk, ECONNREFUSED);
+ l2cap_chan_del(chan, ECONNREFUSED);
break;
}
@@ -2179,6 +2247,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
struct l2cap_conf_req *req = (struct l2cap_conf_req *) data;
u16 dcid, flags;
u8 rsp[64];
+ struct l2cap_chan *chan;
struct sock *sk;
int len;
@@ -2187,10 +2256,12 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
BT_DBG("dcid 0x%4.4x flags 0x%2.2x", dcid, flags);
- sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid);
- if (!sk)
+ chan = l2cap_get_chan_by_scid(conn, dcid);
+ if (!chan)
return -ENOENT;
+ sk = chan->sk;
+
if (sk->sk_state != BT_CONFIG) {
struct l2cap_cmd_rej rej;
@@ -2202,7 +2273,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
/* Reject if config buffer is too small. */
len = cmd_len - sizeof(*req);
- if (l2cap_pi(sk)->conf_len + len > sizeof(l2cap_pi(sk)->conf_req)) {
+ if (chan->conf_len + len > sizeof(chan->conf_req)) {
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP,
l2cap_build_conf_rsp(sk, rsp,
L2CAP_CONF_REJECT, flags), rsp);
@@ -2210,8 +2281,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
}
/* Store config. */
- memcpy(l2cap_pi(sk)->conf_req + l2cap_pi(sk)->conf_len, req->data, len);
- l2cap_pi(sk)->conf_len += len;
+ memcpy(chan->conf_req + chan->conf_len, req->data, len);
+ chan->conf_len += len;
if (flags & 0x0001) {
/* Incomplete config. Send empty response. */
@@ -2222,17 +2293,17 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
}
/* Complete config. */
- len = l2cap_parse_conf_req(sk, rsp);
+ len = l2cap_parse_conf_req(chan, rsp);
if (len < 0) {
- l2cap_send_disconn_req(conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto unlock;
}
l2cap_send_cmd(conn, cmd->ident, L2CAP_CONF_RSP, len, rsp);
- l2cap_pi(sk)->num_conf_rsp++;
+ chan->num_conf_rsp++;
/* Reset config buffer. */
- l2cap_pi(sk)->conf_len = 0;
+ chan->conf_len = 0;
if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_OUTPUT_DONE))
goto unlock;
@@ -2242,11 +2313,11 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
sk->sk_state = BT_CONNECTED;
- l2cap_pi(sk)->next_tx_seq = 0;
- l2cap_pi(sk)->expected_tx_seq = 0;
- __skb_queue_head_init(TX_QUEUE(sk));
+ chan->next_tx_seq = 0;
+ chan->expected_tx_seq = 0;
+ skb_queue_head_init(&chan->tx_q);
if (l2cap_pi(sk)->mode == L2CAP_MODE_ERTM)
- l2cap_ertm_init(sk);
+ l2cap_ertm_init(chan);
l2cap_chan_ready(sk);
goto unlock;
@@ -2256,8 +2327,8 @@ static inline int l2cap_config_req(struct l2cap_conn *conn, struct l2cap_cmd_hdr
u8 buf[64];
l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
- l2cap_build_conf_req(sk, buf), buf);
- l2cap_pi(sk)->num_conf_req++;
+ l2cap_build_conf_req(chan, buf), buf);
+ chan->num_conf_req++;
}
unlock:
@@ -2269,6 +2340,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
{
struct l2cap_conf_rsp *rsp = (struct l2cap_conf_rsp *)data;
u16 scid, flags, result;
+ struct l2cap_chan *chan;
struct sock *sk;
int len = cmd->len - sizeof(*rsp);
@@ -2279,21 +2351,23 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
BT_DBG("scid 0x%4.4x flags 0x%2.2x result 0x%2.2x",
scid, flags, result);
- sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
- if (!sk)
+ chan = l2cap_get_chan_by_scid(conn, scid);
+ if (!chan)
return 0;
+ sk = chan->sk;
+
switch (result) {
case L2CAP_CONF_SUCCESS:
l2cap_conf_rfc_get(sk, rsp->data, len);
break;
case L2CAP_CONF_UNACCEPT:
- if (l2cap_pi(sk)->num_conf_rsp <= L2CAP_CONF_MAX_CONF_RSP) {
+ if (chan->num_conf_rsp <= L2CAP_CONF_MAX_CONF_RSP) {
char req[64];
if (len > sizeof(req) - sizeof(struct l2cap_conf_req)) {
- l2cap_send_disconn_req(conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
@@ -2302,13 +2376,13 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
len = l2cap_parse_conf_rsp(sk, rsp->data,
len, req, &result);
if (len < 0) {
- l2cap_send_disconn_req(conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
l2cap_send_cmd(conn, l2cap_get_ident(conn),
L2CAP_CONF_REQ, len, req);
- l2cap_pi(sk)->num_conf_req++;
+ chan->num_conf_req++;
if (result != L2CAP_CONF_SUCCESS)
goto done;
break;
@@ -2317,7 +2391,7 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
default:
sk->sk_err = ECONNRESET;
l2cap_sock_set_timer(sk, HZ * 5);
- l2cap_send_disconn_req(conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(conn, chan, ECONNRESET);
goto done;
}
@@ -2330,11 +2404,11 @@ static inline int l2cap_config_rsp(struct l2cap_conn *conn, struct l2cap_cmd_hdr
set_default_fcs(l2cap_pi(sk));
sk->sk_state = BT_CONNECTED;
- l2cap_pi(sk)->next_tx_seq = 0;
- l2cap_pi(sk)->expected_tx_seq = 0;
- __skb_queue_head_init(TX_QUEUE(sk));
+ chan->next_tx_seq = 0;
+ chan->expected_tx_seq = 0;
+ skb_queue_head_init(&chan->tx_q);
if (l2cap_pi(sk)->mode == L2CAP_MODE_ERTM)
- l2cap_ertm_init(sk);
+ l2cap_ertm_init(chan);
l2cap_chan_ready(sk);
}
@@ -2349,6 +2423,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
struct l2cap_disconn_req *req = (struct l2cap_disconn_req *) data;
struct l2cap_disconn_rsp rsp;
u16 dcid, scid;
+ struct l2cap_chan *chan;
struct sock *sk;
scid = __le16_to_cpu(req->scid);
@@ -2356,10 +2431,12 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
BT_DBG("scid 0x%4.4x dcid 0x%4.4x", scid, dcid);
- sk = l2cap_get_chan_by_scid(&conn->chan_list, dcid);
- if (!sk)
+ chan = l2cap_get_chan_by_scid(conn, dcid);
+ if (!chan)
return 0;
+ sk = chan->sk;
+
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
l2cap_send_cmd(conn, cmd->ident, L2CAP_DISCONN_RSP, sizeof(rsp), &rsp);
@@ -2375,7 +2452,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn, struct l2cap_cmd
return 0;
}
- l2cap_chan_del(sk, ECONNRESET);
+ l2cap_chan_del(chan, ECONNRESET);
bh_unlock_sock(sk);
l2cap_sock_kill(sk);
@@ -2386,6 +2463,7 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
{
struct l2cap_disconn_rsp *rsp = (struct l2cap_disconn_rsp *) data;
u16 dcid, scid;
+ struct l2cap_chan *chan;
struct sock *sk;
scid = __le16_to_cpu(rsp->scid);
@@ -2393,10 +2471,12 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
BT_DBG("dcid 0x%4.4x scid 0x%4.4x", dcid, scid);
- sk = l2cap_get_chan_by_scid(&conn->chan_list, scid);
- if (!sk)
+ chan = l2cap_get_chan_by_scid(conn, scid);
+ if (!chan)
return 0;
+ sk = chan->sk;
+
/* don't delete l2cap channel if sk is owned by user */
if (sock_owned_by_user(sk)) {
sk->sk_state = BT_DISCONN;
@@ -2406,7 +2486,7 @@ static inline int l2cap_disconnect_rsp(struct l2cap_conn *conn, struct l2cap_cmd
return 0;
}
- l2cap_chan_del(sk, 0);
+ l2cap_chan_del(chan, 0);
bh_unlock_sock(sk);
l2cap_sock_kill(sk);
@@ -2709,49 +2789,47 @@ static int l2cap_check_fcs(struct l2cap_pinfo *pi, struct sk_buff *skb)
return 0;
}
-static inline void l2cap_send_i_or_rr_or_rnr(struct sock *sk)
+static inline void l2cap_send_i_or_rr_or_rnr(struct l2cap_chan *chan)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
u16 control = 0;
- pi->frames_sent = 0;
+ chan->frames_sent = 0;
- control |= pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ control |= chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- if (pi->conn_state & L2CAP_CONN_LOCAL_BUSY) {
+ if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
control |= L2CAP_SUPER_RCV_NOT_READY;
- l2cap_send_sframe(pi, control);
- pi->conn_state |= L2CAP_CONN_RNR_SENT;
+ l2cap_send_sframe(chan, control);
+ chan->conn_state |= L2CAP_CONN_RNR_SENT;
}
- if (pi->conn_state & L2CAP_CONN_REMOTE_BUSY)
- l2cap_retransmit_frames(sk);
+ if (chan->conn_state & L2CAP_CONN_REMOTE_BUSY)
+ l2cap_retransmit_frames(chan);
- l2cap_ertm_send(sk);
+ l2cap_ertm_send(chan);
- if (!(pi->conn_state & L2CAP_CONN_LOCAL_BUSY) &&
- pi->frames_sent == 0) {
+ if (!(chan->conn_state & L2CAP_CONN_LOCAL_BUSY) &&
+ chan->frames_sent == 0) {
control |= L2CAP_SUPER_RCV_READY;
- l2cap_send_sframe(pi, control);
+ l2cap_send_sframe(chan, control);
}
}
-static int l2cap_add_to_srej_queue(struct sock *sk, struct sk_buff *skb, u8 tx_seq, u8 sar)
+static int l2cap_add_to_srej_queue(struct l2cap_chan *chan, struct sk_buff *skb, u8 tx_seq, u8 sar)
{
struct sk_buff *next_skb;
- struct l2cap_pinfo *pi = l2cap_pi(sk);
int tx_seq_offset, next_tx_seq_offset;
bt_cb(skb)->tx_seq = tx_seq;
bt_cb(skb)->sar = sar;
- next_skb = skb_peek(SREJ_QUEUE(sk));
+ next_skb = skb_peek(&chan->srej_q);
if (!next_skb) {
- __skb_queue_tail(SREJ_QUEUE(sk), skb);
+ __skb_queue_tail(&chan->srej_q, skb);
return 0;
}
- tx_seq_offset = (tx_seq - pi->buffer_seq) % 64;
+ tx_seq_offset = (tx_seq - chan->buffer_seq) % 64;
if (tx_seq_offset < 0)
tx_seq_offset += 64;
@@ -2760,53 +2838,53 @@ static int l2cap_add_to_srej_queue(struct sock *sk, struct sk_buff *skb, u8 tx_s
return -EINVAL;
next_tx_seq_offset = (bt_cb(next_skb)->tx_seq -
- pi->buffer_seq) % 64;
+ chan->buffer_seq) % 64;
if (next_tx_seq_offset < 0)
next_tx_seq_offset += 64;
if (next_tx_seq_offset > tx_seq_offset) {
- __skb_queue_before(SREJ_QUEUE(sk), next_skb, skb);
+ __skb_queue_before(&chan->srej_q, next_skb, skb);
return 0;
}
- if (skb_queue_is_last(SREJ_QUEUE(sk), next_skb))
+ if (skb_queue_is_last(&chan->srej_q, next_skb))
break;
- } while ((next_skb = skb_queue_next(SREJ_QUEUE(sk), next_skb)));
+ } while ((next_skb = skb_queue_next(&chan->srej_q, next_skb)));
- __skb_queue_tail(SREJ_QUEUE(sk), skb);
+ __skb_queue_tail(&chan->srej_q, skb);
return 0;
}
-static int l2cap_ertm_reassembly_sdu(struct sock *sk, struct sk_buff *skb, u16 control)
+static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u16 control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
struct sk_buff *_skb;
int err;
switch (control & L2CAP_CTRL_SAR) {
case L2CAP_SDU_UNSEGMENTED:
- if (pi->conn_state & L2CAP_CONN_SAR_SDU)
+ if (chan->conn_state & L2CAP_CONN_SAR_SDU)
goto drop;
- err = sock_queue_rcv_skb(sk, skb);
+ err = sock_queue_rcv_skb(chan->sk, skb);
if (!err)
return err;
break;
case L2CAP_SDU_START:
- if (pi->conn_state & L2CAP_CONN_SAR_SDU)
+ if (chan->conn_state & L2CAP_CONN_SAR_SDU)
goto drop;
- pi->sdu_len = get_unaligned_le16(skb->data);
+ chan->sdu_len = get_unaligned_le16(skb->data);
- if (pi->sdu_len > pi->imtu)
+ if (chan->sdu_len > pi->imtu)
goto disconnect;
- pi->sdu = bt_skb_alloc(pi->sdu_len, GFP_ATOMIC);
- if (!pi->sdu)
+ chan->sdu = bt_skb_alloc(chan->sdu_len, GFP_ATOMIC);
+ if (!chan->sdu)
return -ENOMEM;
/* pull sdu_len bytes only after alloc, because of Local Busy
@@ -2814,63 +2892,63 @@ static int l2cap_ertm_reassembly_sdu(struct sock *sk, struct sk_buff *skb, u16 c
* only once, i.e., when alloc does not fail */
skb_pull(skb, 2);
- memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+ memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
- pi->conn_state |= L2CAP_CONN_SAR_SDU;
- pi->partial_sdu_len = skb->len;
+ chan->conn_state |= L2CAP_CONN_SAR_SDU;
+ chan->partial_sdu_len = skb->len;
break;
case L2CAP_SDU_CONTINUE:
- if (!(pi->conn_state & L2CAP_CONN_SAR_SDU))
+ if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
goto disconnect;
- if (!pi->sdu)
+ if (!chan->sdu)
goto disconnect;
- pi->partial_sdu_len += skb->len;
- if (pi->partial_sdu_len > pi->sdu_len)
+ chan->partial_sdu_len += skb->len;
+ if (chan->partial_sdu_len > chan->sdu_len)
goto drop;
- memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+ memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
break;
case L2CAP_SDU_END:
- if (!(pi->conn_state & L2CAP_CONN_SAR_SDU))
+ if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
goto disconnect;
- if (!pi->sdu)
+ if (!chan->sdu)
goto disconnect;
- if (!(pi->conn_state & L2CAP_CONN_SAR_RETRY)) {
- pi->partial_sdu_len += skb->len;
+ if (!(chan->conn_state & L2CAP_CONN_SAR_RETRY)) {
+ chan->partial_sdu_len += skb->len;
- if (pi->partial_sdu_len > pi->imtu)
+ if (chan->partial_sdu_len > pi->imtu)
goto drop;
- if (pi->partial_sdu_len != pi->sdu_len)
+ if (chan->partial_sdu_len != chan->sdu_len)
goto drop;
- memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+ memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
}
- _skb = skb_clone(pi->sdu, GFP_ATOMIC);
+ _skb = skb_clone(chan->sdu, GFP_ATOMIC);
if (!_skb) {
- pi->conn_state |= L2CAP_CONN_SAR_RETRY;
+ chan->conn_state |= L2CAP_CONN_SAR_RETRY;
return -ENOMEM;
}
- err = sock_queue_rcv_skb(sk, _skb);
+ err = sock_queue_rcv_skb(chan->sk, _skb);
if (err < 0) {
kfree_skb(_skb);
- pi->conn_state |= L2CAP_CONN_SAR_RETRY;
+ chan->conn_state |= L2CAP_CONN_SAR_RETRY;
return err;
}
- pi->conn_state &= ~L2CAP_CONN_SAR_RETRY;
- pi->conn_state &= ~L2CAP_CONN_SAR_SDU;
+ chan->conn_state &= ~L2CAP_CONN_SAR_RETRY;
+ chan->conn_state &= ~L2CAP_CONN_SAR_SDU;
- kfree_skb(pi->sdu);
+ kfree_skb(chan->sdu);
break;
}
@@ -2878,51 +2956,50 @@ static int l2cap_ertm_reassembly_sdu(struct sock *sk, struct sk_buff *skb, u16 c
return 0;
drop:
- kfree_skb(pi->sdu);
- pi->sdu = NULL;
+ kfree_skb(chan->sdu);
+ chan->sdu = NULL;
disconnect:
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
kfree_skb(skb);
return 0;
}
-static int l2cap_try_push_rx_skb(struct sock *sk)
+static int l2cap_try_push_rx_skb(struct l2cap_chan *chan)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
struct sk_buff *skb;
u16 control;
int err;
- while ((skb = skb_dequeue(BUSY_QUEUE(sk)))) {
+ while ((skb = skb_dequeue(&chan->busy_q))) {
control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
- err = l2cap_ertm_reassembly_sdu(sk, skb, control);
+ err = l2cap_ertm_reassembly_sdu(chan, skb, control);
if (err < 0) {
- skb_queue_head(BUSY_QUEUE(sk), skb);
+ skb_queue_head(&chan->busy_q, skb);
return -EBUSY;
}
- pi->buffer_seq = (pi->buffer_seq + 1) % 64;
+ chan->buffer_seq = (chan->buffer_seq + 1) % 64;
}
- if (!(pi->conn_state & L2CAP_CONN_RNR_SENT))
+ if (!(chan->conn_state & L2CAP_CONN_RNR_SENT))
goto done;
- control = pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ control = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
control |= L2CAP_SUPER_RCV_READY | L2CAP_CTRL_POLL;
- l2cap_send_sframe(pi, control);
- l2cap_pi(sk)->retry_count = 1;
+ l2cap_send_sframe(chan, control);
+ chan->retry_count = 1;
- del_timer(&pi->retrans_timer);
+ del_timer(&chan->retrans_timer);
__mod_monitor_timer();
- l2cap_pi(sk)->conn_state |= L2CAP_CONN_WAIT_F;
+ chan->conn_state |= L2CAP_CONN_WAIT_F;
done:
- pi->conn_state &= ~L2CAP_CONN_LOCAL_BUSY;
- pi->conn_state &= ~L2CAP_CONN_RNR_SENT;
+ chan->conn_state &= ~L2CAP_CONN_LOCAL_BUSY;
+ chan->conn_state &= ~L2CAP_CONN_RNR_SENT;
- BT_DBG("sk %p, Exit local busy", sk);
+ BT_DBG("chan %p, Exit local busy", chan);
return 0;
}
@@ -2930,21 +3007,21 @@ done:
static void l2cap_busy_work(struct work_struct *work)
{
DECLARE_WAITQUEUE(wait, current);
- struct l2cap_pinfo *pi =
- container_of(work, struct l2cap_pinfo, busy_work);
- struct sock *sk = (struct sock *)pi;
+ struct l2cap_chan *chan =
+ container_of(work, struct l2cap_chan, busy_work);
+ struct sock *sk = chan->sk;
int n_tries = 0, timeo = HZ/5, err;
struct sk_buff *skb;
lock_sock(sk);
add_wait_queue(sk_sleep(sk), &wait);
- while ((skb = skb_peek(BUSY_QUEUE(sk)))) {
+ while ((skb = skb_peek(&chan->busy_q))) {
set_current_state(TASK_INTERRUPTIBLE);
if (n_tries++ > L2CAP_LOCAL_BUSY_TRIES) {
err = -EBUSY;
- l2cap_send_disconn_req(pi->conn, sk, EBUSY);
+ l2cap_send_disconn_req(l2cap_pi(sk)->conn, chan, EBUSY);
break;
}
@@ -2964,7 +3041,7 @@ static void l2cap_busy_work(struct work_struct *work)
if (err)
break;
- if (l2cap_try_push_rx_skb(sk) == 0)
+ if (l2cap_try_push_rx_skb(chan) == 0)
break;
}
@@ -2974,48 +3051,47 @@ static void l2cap_busy_work(struct work_struct *work)
release_sock(sk);
}
-static int l2cap_push_rx_skb(struct sock *sk, struct sk_buff *skb, u16 control)
+static int l2cap_push_rx_skb(struct l2cap_chan *chan, struct sk_buff *skb, u16 control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
int sctrl, err;
- if (pi->conn_state & L2CAP_CONN_LOCAL_BUSY) {
+ if (chan->conn_state & L2CAP_CONN_LOCAL_BUSY) {
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
- __skb_queue_tail(BUSY_QUEUE(sk), skb);
- return l2cap_try_push_rx_skb(sk);
+ __skb_queue_tail(&chan->busy_q, skb);
+ return l2cap_try_push_rx_skb(chan);
}
- err = l2cap_ertm_reassembly_sdu(sk, skb, control);
+ err = l2cap_ertm_reassembly_sdu(chan, skb, control);
if (err >= 0) {
- pi->buffer_seq = (pi->buffer_seq + 1) % 64;
+ chan->buffer_seq = (chan->buffer_seq + 1) % 64;
return err;
}
/* Busy Condition */
- BT_DBG("sk %p, Enter local busy", sk);
+ BT_DBG("chan %p, Enter local busy", chan);
- pi->conn_state |= L2CAP_CONN_LOCAL_BUSY;
+ chan->conn_state |= L2CAP_CONN_LOCAL_BUSY;
bt_cb(skb)->sar = control >> L2CAP_CTRL_SAR_SHIFT;
- __skb_queue_tail(BUSY_QUEUE(sk), skb);
+ __skb_queue_tail(&chan->busy_q, skb);
- sctrl = pi->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ sctrl = chan->buffer_seq << L2CAP_CTRL_REQSEQ_SHIFT;
sctrl |= L2CAP_SUPER_RCV_NOT_READY;
- l2cap_send_sframe(pi, sctrl);
+ l2cap_send_sframe(chan, sctrl);
- pi->conn_state |= L2CAP_CONN_RNR_SENT;
+ chan->conn_state |= L2CAP_CONN_RNR_SENT;
- del_timer(&pi->ack_timer);
+ del_timer(&chan->ack_timer);
- queue_work(_busy_wq, &pi->busy_work);
+ queue_work(_busy_wq, &chan->busy_work);
return err;
}
-static int l2cap_streaming_reassembly_sdu(struct sock *sk, struct sk_buff *skb, u16 control)
+static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *skb, u16 control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
struct sk_buff *_skb;
int err = -EINVAL;
@@ -3026,80 +3102,80 @@ static int l2cap_streaming_reassembly_sdu(struct sock *sk, struct sk_buff *skb,
switch (control & L2CAP_CTRL_SAR) {
case L2CAP_SDU_UNSEGMENTED:
- if (pi->conn_state & L2CAP_CONN_SAR_SDU) {
- kfree_skb(pi->sdu);
+ if (chan->conn_state & L2CAP_CONN_SAR_SDU) {
+ kfree_skb(chan->sdu);
break;
}
- err = sock_queue_rcv_skb(sk, skb);
+ err = sock_queue_rcv_skb(chan->sk, skb);
if (!err)
return 0;
break;
case L2CAP_SDU_START:
- if (pi->conn_state & L2CAP_CONN_SAR_SDU) {
- kfree_skb(pi->sdu);
+ if (chan->conn_state & L2CAP_CONN_SAR_SDU) {
+ kfree_skb(chan->sdu);
break;
}
- pi->sdu_len = get_unaligned_le16(skb->data);
+ chan->sdu_len = get_unaligned_le16(skb->data);
skb_pull(skb, 2);
- if (pi->sdu_len > pi->imtu) {
+ if (chan->sdu_len > pi->imtu) {
err = -EMSGSIZE;
break;
}
- pi->sdu = bt_skb_alloc(pi->sdu_len, GFP_ATOMIC);
- if (!pi->sdu) {
+ chan->sdu = bt_skb_alloc(chan->sdu_len, GFP_ATOMIC);
+ if (!chan->sdu) {
err = -ENOMEM;
break;
}
- memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+ memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
- pi->conn_state |= L2CAP_CONN_SAR_SDU;
- pi->partial_sdu_len = skb->len;
+ chan->conn_state |= L2CAP_CONN_SAR_SDU;
+ chan->partial_sdu_len = skb->len;
err = 0;
break;
case L2CAP_SDU_CONTINUE:
- if (!(pi->conn_state & L2CAP_CONN_SAR_SDU))
+ if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
break;
- memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+ memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
- pi->partial_sdu_len += skb->len;
- if (pi->partial_sdu_len > pi->sdu_len)
- kfree_skb(pi->sdu);
+ chan->partial_sdu_len += skb->len;
+ if (chan->partial_sdu_len > chan->sdu_len)
+ kfree_skb(chan->sdu);
else
err = 0;
break;
case L2CAP_SDU_END:
- if (!(pi->conn_state & L2CAP_CONN_SAR_SDU))
+ if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
break;
- memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
+ memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
- pi->conn_state &= ~L2CAP_CONN_SAR_SDU;
- pi->partial_sdu_len += skb->len;
+ chan->conn_state &= ~L2CAP_CONN_SAR_SDU;
+ chan->partial_sdu_len += skb->len;
- if (pi->partial_sdu_len > pi->imtu)
+ if (chan->partial_sdu_len > pi->imtu)
goto drop;
- if (pi->partial_sdu_len == pi->sdu_len) {
- _skb = skb_clone(pi->sdu, GFP_ATOMIC);
- err = sock_queue_rcv_skb(sk, _skb);
+ if (chan->partial_sdu_len == chan->sdu_len) {
+ _skb = skb_clone(chan->sdu, GFP_ATOMIC);
+ err = sock_queue_rcv_skb(chan->sk, _skb);
if (err < 0)
kfree_skb(_skb);
}
err = 0;
drop:
- kfree_skb(pi->sdu);
+ kfree_skb(chan->sdu);
break;
}
@@ -3107,31 +3183,30 @@ drop:
return err;
}
-static void l2cap_check_srej_gap(struct sock *sk, u8 tx_seq)
+static void l2cap_check_srej_gap(struct l2cap_chan *chan, u8 tx_seq)
{
struct sk_buff *skb;
u16 control;
- while ((skb = skb_peek(SREJ_QUEUE(sk)))) {
+ while ((skb = skb_peek(&chan->srej_q))) {
if (bt_cb(skb)->tx_seq != tx_seq)
break;
- skb = skb_dequeue(SREJ_QUEUE(sk));
+ skb = skb_dequeue(&chan->srej_q);
control = bt_cb(skb)->sar << L2CAP_CTRL_SAR_SHIFT;
- l2cap_ertm_reassembly_sdu(sk, skb, control);
- l2cap_pi(sk)->buffer_seq_srej =
- (l2cap_pi(sk)->buffer_seq_srej + 1) % 64;
+ l2cap_ertm_reassembly_sdu(chan, skb, control);
+ chan->buffer_seq_srej =
+ (chan->buffer_seq_srej + 1) % 64;
tx_seq = (tx_seq + 1) % 64;
}
}
-static void l2cap_resend_srejframe(struct sock *sk, u8 tx_seq)
+static void l2cap_resend_srejframe(struct l2cap_chan *chan, u8 tx_seq)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
struct srej_list *l, *tmp;
u16 control;
- list_for_each_entry_safe(l, tmp, SREJ_LIST(sk), list) {
+ list_for_each_entry_safe(l, tmp, &chan->srej_l, list) {
if (l->tx_seq == tx_seq) {
list_del(&l->list);
kfree(l);
@@ -3139,34 +3214,33 @@ static void l2cap_resend_srejframe(struct sock *sk, u8 tx_seq)
}
control = L2CAP_SUPER_SELECT_REJECT;
control |= l->tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- l2cap_send_sframe(pi, control);
+ l2cap_send_sframe(chan, control);
list_del(&l->list);
- list_add_tail(&l->list, SREJ_LIST(sk));
+ list_add_tail(&l->list, &chan->srej_l);
}
}
-static void l2cap_send_srejframe(struct sock *sk, u8 tx_seq)
+static void l2cap_send_srejframe(struct l2cap_chan *chan, u8 tx_seq)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
struct srej_list *new;
u16 control;
- while (tx_seq != pi->expected_tx_seq) {
+ while (tx_seq != chan->expected_tx_seq) {
control = L2CAP_SUPER_SELECT_REJECT;
- control |= pi->expected_tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
- l2cap_send_sframe(pi, control);
+ control |= chan->expected_tx_seq << L2CAP_CTRL_REQSEQ_SHIFT;
+ l2cap_send_sframe(chan, control);
new = kzalloc(sizeof(struct srej_list), GFP_ATOMIC);
- new->tx_seq = pi->expected_tx_seq;
- pi->expected_tx_seq = (pi->expected_tx_seq + 1) % 64;
- list_add_tail(&new->list, SREJ_LIST(sk));
+ new->tx_seq = chan->expected_tx_seq;
+ chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
+ list_add_tail(&new->list, &chan->srej_l);
}
- pi->expected_tx_seq = (pi->expected_tx_seq + 1) % 64;
+ chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
}
-static inline int l2cap_data_channel_iframe(struct sock *sk, u16 rx_control, struct sk_buff *skb)
+static inline int l2cap_data_channel_iframe(struct l2cap_chan *chan, u16 rx_control, struct sk_buff *skb)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
+ struct l2cap_pinfo *pi = l2cap_pi(chan->sk);
u8 tx_seq = __get_txseq(rx_control);
u8 req_seq = __get_reqseq(rx_control);
u8 sar = rx_control >> L2CAP_CTRL_SAR_SHIFT;
@@ -3174,72 +3248,72 @@ static inline int l2cap_data_channel_iframe(struct sock *sk, u16 rx_control, str
int num_to_ack = (pi->tx_win/6) + 1;
int err = 0;
- BT_DBG("sk %p len %d tx_seq %d rx_control 0x%4.4x", sk, skb->len, tx_seq,
- rx_control);
+ BT_DBG("chan %p len %d tx_seq %d rx_control 0x%4.4x", chan, skb->len,
+ tx_seq, rx_control);
if (L2CAP_CTRL_FINAL & rx_control &&
- l2cap_pi(sk)->conn_state & L2CAP_CONN_WAIT_F) {
- del_timer(&pi->monitor_timer);
- if (pi->unacked_frames > 0)
+ chan->conn_state & L2CAP_CONN_WAIT_F) {
+ del_timer(&chan->monitor_timer);
+ if (chan->unacked_frames > 0)
__mod_retrans_timer();
- pi->conn_state &= ~L2CAP_CONN_WAIT_F;
+ chan->conn_state &= ~L2CAP_CONN_WAIT_F;
}
- pi->expected_ack_seq = req_seq;
- l2cap_drop_acked_frames(sk);
+ chan->expected_ack_seq = req_seq;
+ l2cap_drop_acked_frames(chan);
- if (tx_seq == pi->expected_tx_seq)
+ if (tx_seq == chan->expected_tx_seq)
goto expected;
- tx_seq_offset = (tx_seq - pi->buffer_seq) % 64;
+ tx_seq_offset = (tx_seq - chan->buffer_seq) % 64;
if (tx_seq_offset < 0)
tx_seq_offset += 64;
/* invalid tx_seq */
if (tx_seq_offset >= pi->tx_win) {
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
- if (pi->conn_state == L2CAP_CONN_LOCAL_BUSY)
+ if (chan->conn_state == L2CAP_CONN_LOCAL_BUSY)
goto drop;
- if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
+ if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
struct srej_list *first;
- first = list_first_entry(SREJ_LIST(sk),
+ first = list_first_entry(&chan->srej_l,
struct srej_list, list);
if (tx_seq == first->tx_seq) {
- l2cap_add_to_srej_queue(sk, skb, tx_seq, sar);
- l2cap_check_srej_gap(sk, tx_seq);
+ l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
+ l2cap_check_srej_gap(chan, tx_seq);
list_del(&first->list);
kfree(first);
- if (list_empty(SREJ_LIST(sk))) {
- pi->buffer_seq = pi->buffer_seq_srej;
- pi->conn_state &= ~L2CAP_CONN_SREJ_SENT;
- l2cap_send_ack(pi);
- BT_DBG("sk %p, Exit SREJ_SENT", sk);
+ if (list_empty(&chan->srej_l)) {
+ chan->buffer_seq = chan->buffer_seq_srej;
+ chan->conn_state &= ~L2CAP_CONN_SREJ_SENT;
+ l2cap_send_ack(chan);
+ BT_DBG("chan %p, Exit SREJ_SENT", chan);
}
} else {
struct srej_list *l;
/* duplicated tx_seq */
- if (l2cap_add_to_srej_queue(sk, skb, tx_seq, sar) < 0)
+ if (l2cap_add_to_srej_queue(chan, skb, tx_seq, sar) < 0)
goto drop;
- list_for_each_entry(l, SREJ_LIST(sk), list) {
+ list_for_each_entry(l, &chan->srej_l, list) {
if (l->tx_seq == tx_seq) {
- l2cap_resend_srejframe(sk, tx_seq);
+ l2cap_resend_srejframe(chan, tx_seq);
return 0;
}
}
- l2cap_send_srejframe(sk, tx_seq);
+ l2cap_send_srejframe(chan, tx_seq);
}
} else {
expected_tx_seq_offset =
- (pi->expected_tx_seq - pi->buffer_seq) % 64;
+ (chan->expected_tx_seq - chan->buffer_seq) % 64;
if (expected_tx_seq_offset < 0)
expected_tx_seq_offset += 64;
@@ -3247,51 +3321,51 @@ static inline int l2cap_data_channel_iframe(struct sock *sk, u16 rx_control, str
if (tx_seq_offset < expected_tx_seq_offset)
goto drop;
- pi->conn_state |= L2CAP_CONN_SREJ_SENT;
+ chan->conn_state |= L2CAP_CONN_SREJ_SENT;
- BT_DBG("sk %p, Enter SREJ", sk);
+ BT_DBG("chan %p, Enter SREJ", chan);
- INIT_LIST_HEAD(SREJ_LIST(sk));
- pi->buffer_seq_srej = pi->buffer_seq;
+ INIT_LIST_HEAD(&chan->srej_l);
+ chan->buffer_seq_srej = chan->buffer_seq;
- __skb_queue_head_init(SREJ_QUEUE(sk));
- __skb_queue_head_init(BUSY_QUEUE(sk));
- l2cap_add_to_srej_queue(sk, skb, tx_seq, sar);
+ __skb_queue_head_init(&chan->srej_q);
+ __skb_queue_head_init(&chan->busy_q);
+ l2cap_add_to_srej_queue(chan, skb, tx_seq, sar);
- pi->conn_state |= L2CAP_CONN_SEND_PBIT;
+ chan->conn_state |= L2CAP_CONN_SEND_PBIT;
- l2cap_send_srejframe(sk, tx_seq);
+ l2cap_send_srejframe(chan, tx_seq);
- del_timer(&pi->ack_timer);
+ del_timer(&chan->ack_timer);
}
return 0;
expected:
- pi->expected_tx_seq = (pi->expected_tx_seq + 1) % 64;
+ chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
- if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
+ if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
bt_cb(skb)->tx_seq = tx_seq;
bt_cb(skb)->sar = sar;
- __skb_queue_tail(SREJ_QUEUE(sk), skb);
+ __skb_queue_tail(&chan->srej_q, skb);
return 0;
}
- err = l2cap_push_rx_skb(sk, skb, rx_control);
+ err = l2cap_push_rx_skb(chan, skb, rx_control);
if (err < 0)
return 0;
if (rx_control & L2CAP_CTRL_FINAL) {
- if (pi->conn_state & L2CAP_CONN_REJ_ACT)
- pi->conn_state &= ~L2CAP_CONN_REJ_ACT;
+ if (chan->conn_state & L2CAP_CONN_REJ_ACT)
+ chan->conn_state &= ~L2CAP_CONN_REJ_ACT;
else
- l2cap_retransmit_frames(sk);
+ l2cap_retransmit_frames(chan);
}
__mod_ack_timer();
- pi->num_acked = (pi->num_acked + 1) % num_to_ack;
- if (pi->num_acked == num_to_ack - 1)
- l2cap_send_ack(pi);
+ chan->num_acked = (chan->num_acked + 1) % num_to_ack;
+ if (chan->num_acked == num_to_ack - 1)
+ l2cap_send_ack(chan);
return 0;
@@ -3300,165 +3374,160 @@ drop:
return 0;
}
-static inline void l2cap_data_channel_rrframe(struct sock *sk, u16 rx_control)
+static inline void l2cap_data_channel_rrframe(struct l2cap_chan *chan, u16 rx_control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
-
- BT_DBG("sk %p, req_seq %d ctrl 0x%4.4x", sk, __get_reqseq(rx_control),
+ BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, __get_reqseq(rx_control),
rx_control);
- pi->expected_ack_seq = __get_reqseq(rx_control);
- l2cap_drop_acked_frames(sk);
+ chan->expected_ack_seq = __get_reqseq(rx_control);
+ l2cap_drop_acked_frames(chan);
if (rx_control & L2CAP_CTRL_POLL) {
- pi->conn_state |= L2CAP_CONN_SEND_FBIT;
- if (pi->conn_state & L2CAP_CONN_SREJ_SENT) {
- if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
- (pi->unacked_frames > 0))
+ chan->conn_state |= L2CAP_CONN_SEND_FBIT;
+ if (chan->conn_state & L2CAP_CONN_SREJ_SENT) {
+ if ((chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
+ (chan->unacked_frames > 0))
__mod_retrans_timer();
- pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
- l2cap_send_srejtail(sk);
+ chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ l2cap_send_srejtail(chan);
} else {
- l2cap_send_i_or_rr_or_rnr(sk);
+ l2cap_send_i_or_rr_or_rnr(chan);
}
} else if (rx_control & L2CAP_CTRL_FINAL) {
- pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
- if (pi->conn_state & L2CAP_CONN_REJ_ACT)
- pi->conn_state &= ~L2CAP_CONN_REJ_ACT;
+ if (chan->conn_state & L2CAP_CONN_REJ_ACT)
+ chan->conn_state &= ~L2CAP_CONN_REJ_ACT;
else
- l2cap_retransmit_frames(sk);
+ l2cap_retransmit_frames(chan);
} else {
- if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
- (pi->unacked_frames > 0))
+ if ((chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
+ (chan->unacked_frames > 0))
__mod_retrans_timer();
- pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
- if (pi->conn_state & L2CAP_CONN_SREJ_SENT)
- l2cap_send_ack(pi);
+ chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ if (chan->conn_state & L2CAP_CONN_SREJ_SENT)
+ l2cap_send_ack(chan);
else
- l2cap_ertm_send(sk);
+ l2cap_ertm_send(chan);
}
}
-static inline void l2cap_data_channel_rejframe(struct sock *sk, u16 rx_control)
+static inline void l2cap_data_channel_rejframe(struct l2cap_chan *chan, u16 rx_control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
u8 tx_seq = __get_reqseq(rx_control);
- BT_DBG("sk %p, req_seq %d ctrl 0x%4.4x", sk, tx_seq, rx_control);
+ BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
- pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
- pi->expected_ack_seq = tx_seq;
- l2cap_drop_acked_frames(sk);
+ chan->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(chan);
if (rx_control & L2CAP_CTRL_FINAL) {
- if (pi->conn_state & L2CAP_CONN_REJ_ACT)
- pi->conn_state &= ~L2CAP_CONN_REJ_ACT;
+ if (chan->conn_state & L2CAP_CONN_REJ_ACT)
+ chan->conn_state &= ~L2CAP_CONN_REJ_ACT;
else
- l2cap_retransmit_frames(sk);
+ l2cap_retransmit_frames(chan);
} else {
- l2cap_retransmit_frames(sk);
+ l2cap_retransmit_frames(chan);
- if (pi->conn_state & L2CAP_CONN_WAIT_F)
- pi->conn_state |= L2CAP_CONN_REJ_ACT;
+ if (chan->conn_state & L2CAP_CONN_WAIT_F)
+ chan->conn_state |= L2CAP_CONN_REJ_ACT;
}
}
-static inline void l2cap_data_channel_srejframe(struct sock *sk, u16 rx_control)
+static inline void l2cap_data_channel_srejframe(struct l2cap_chan *chan, u16 rx_control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
u8 tx_seq = __get_reqseq(rx_control);
- BT_DBG("sk %p, req_seq %d ctrl 0x%4.4x", sk, tx_seq, rx_control);
+ BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
- pi->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
+ chan->conn_state &= ~L2CAP_CONN_REMOTE_BUSY;
if (rx_control & L2CAP_CTRL_POLL) {
- pi->expected_ack_seq = tx_seq;
- l2cap_drop_acked_frames(sk);
+ chan->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(chan);
- pi->conn_state |= L2CAP_CONN_SEND_FBIT;
- l2cap_retransmit_one_frame(sk, tx_seq);
+ chan->conn_state |= L2CAP_CONN_SEND_FBIT;
+ l2cap_retransmit_one_frame(chan, tx_seq);
- l2cap_ertm_send(sk);
+ l2cap_ertm_send(chan);
- if (pi->conn_state & L2CAP_CONN_WAIT_F) {
- pi->srej_save_reqseq = tx_seq;
- pi->conn_state |= L2CAP_CONN_SREJ_ACT;
+ if (chan->conn_state & L2CAP_CONN_WAIT_F) {
+ chan->srej_save_reqseq = tx_seq;
+ chan->conn_state |= L2CAP_CONN_SREJ_ACT;
}
} else if (rx_control & L2CAP_CTRL_FINAL) {
- if ((pi->conn_state & L2CAP_CONN_SREJ_ACT) &&
- pi->srej_save_reqseq == tx_seq)
- pi->conn_state &= ~L2CAP_CONN_SREJ_ACT;
+ if ((chan->conn_state & L2CAP_CONN_SREJ_ACT) &&
+ chan->srej_save_reqseq == tx_seq)
+ chan->conn_state &= ~L2CAP_CONN_SREJ_ACT;
else
- l2cap_retransmit_one_frame(sk, tx_seq);
+ l2cap_retransmit_one_frame(chan, tx_seq);
} else {
- l2cap_retransmit_one_frame(sk, tx_seq);
- if (pi->conn_state & L2CAP_CONN_WAIT_F) {
- pi->srej_save_reqseq = tx_seq;
- pi->conn_state |= L2CAP_CONN_SREJ_ACT;
+ l2cap_retransmit_one_frame(chan, tx_seq);
+ if (chan->conn_state & L2CAP_CONN_WAIT_F) {
+ chan->srej_save_reqseq = tx_seq;
+ chan->conn_state |= L2CAP_CONN_SREJ_ACT;
}
}
}
-static inline void l2cap_data_channel_rnrframe(struct sock *sk, u16 rx_control)
+static inline void l2cap_data_channel_rnrframe(struct l2cap_chan *chan, u16 rx_control)
{
- struct l2cap_pinfo *pi = l2cap_pi(sk);
u8 tx_seq = __get_reqseq(rx_control);
- BT_DBG("sk %p, req_seq %d ctrl 0x%4.4x", sk, tx_seq, rx_control);
+ BT_DBG("chan %p, req_seq %d ctrl 0x%4.4x", chan, tx_seq, rx_control);
- pi->conn_state |= L2CAP_CONN_REMOTE_BUSY;
- pi->expected_ack_seq = tx_seq;
- l2cap_drop_acked_frames(sk);
+ chan->conn_state |= L2CAP_CONN_REMOTE_BUSY;
+ chan->expected_ack_seq = tx_seq;
+ l2cap_drop_acked_frames(chan);
if (rx_control & L2CAP_CTRL_POLL)
- pi->conn_state |= L2CAP_CONN_SEND_FBIT;
+ chan->conn_state |= L2CAP_CONN_SEND_FBIT;
- if (!(pi->conn_state & L2CAP_CONN_SREJ_SENT)) {
- del_timer(&pi->retrans_timer);
+ if (!(chan->conn_state & L2CAP_CONN_SREJ_SENT)) {
+ del_timer(&chan->retrans_timer);
if (rx_control & L2CAP_CTRL_POLL)
- l2cap_send_rr_or_rnr(pi, L2CAP_CTRL_FINAL);
+ l2cap_send_rr_or_rnr(chan, L2CAP_CTRL_FINAL);
return;
}
if (rx_control & L2CAP_CTRL_POLL)
- l2cap_send_srejtail(sk);
+ l2cap_send_srejtail(chan);
else
- l2cap_send_sframe(pi, L2CAP_SUPER_RCV_READY);
+ l2cap_send_sframe(chan, L2CAP_SUPER_RCV_READY);
}
-static inline int l2cap_data_channel_sframe(struct sock *sk, u16 rx_control, struct sk_buff *skb)
+static inline int l2cap_data_channel_sframe(struct l2cap_chan *chan, u16 rx_control, struct sk_buff *skb)
{
- BT_DBG("sk %p rx_control 0x%4.4x len %d", sk, rx_control, skb->len);
+ BT_DBG("chan %p rx_control 0x%4.4x len %d", chan, rx_control, skb->len);
if (L2CAP_CTRL_FINAL & rx_control &&
- l2cap_pi(sk)->conn_state & L2CAP_CONN_WAIT_F) {
- del_timer(&l2cap_pi(sk)->monitor_timer);
- if (l2cap_pi(sk)->unacked_frames > 0)
+ chan->conn_state & L2CAP_CONN_WAIT_F) {
+ del_timer(&chan->monitor_timer);
+ if (chan->unacked_frames > 0)
__mod_retrans_timer();
- l2cap_pi(sk)->conn_state &= ~L2CAP_CONN_WAIT_F;
+ chan->conn_state &= ~L2CAP_CONN_WAIT_F;
}
switch (rx_control & L2CAP_CTRL_SUPERVISE) {
case L2CAP_SUPER_RCV_READY:
- l2cap_data_channel_rrframe(sk, rx_control);
+ l2cap_data_channel_rrframe(chan, rx_control);
break;
case L2CAP_SUPER_REJECT:
- l2cap_data_channel_rejframe(sk, rx_control);
+ l2cap_data_channel_rejframe(chan, rx_control);
break;
case L2CAP_SUPER_SELECT_REJECT:
- l2cap_data_channel_srejframe(sk, rx_control);
+ l2cap_data_channel_srejframe(chan, rx_control);
break;
case L2CAP_SUPER_RCV_NOT_READY:
- l2cap_data_channel_rnrframe(sk, rx_control);
+ l2cap_data_channel_rnrframe(chan, rx_control);
break;
}
@@ -3468,6 +3537,7 @@ static inline int l2cap_data_channel_sframe(struct sock *sk, u16 rx_control, str
static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb)
{
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
struct l2cap_pinfo *pi = l2cap_pi(sk);
u16 control;
u8 req_seq;
@@ -3492,41 +3562,41 @@ static int l2cap_ertm_data_rcv(struct sock *sk, struct sk_buff *skb)
len -= 2;
if (len > pi->mps) {
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
req_seq = __get_reqseq(control);
- req_seq_offset = (req_seq - pi->expected_ack_seq) % 64;
+ req_seq_offset = (req_seq - chan->expected_ack_seq) % 64;
if (req_seq_offset < 0)
req_seq_offset += 64;
next_tx_seq_offset =
- (pi->next_tx_seq - pi->expected_ack_seq) % 64;
+ (chan->next_tx_seq - chan->expected_ack_seq) % 64;
if (next_tx_seq_offset < 0)
next_tx_seq_offset += 64;
/* check for invalid req-seq */
if (req_seq_offset > next_tx_seq_offset) {
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
if (__is_iframe(control)) {
if (len < 0) {
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
- l2cap_data_channel_iframe(sk, control, skb);
+ l2cap_data_channel_iframe(chan, control, skb);
} else {
if (len != 0) {
BT_ERR("%d", len);
- l2cap_send_disconn_req(pi->conn, sk, ECONNRESET);
+ l2cap_send_disconn_req(pi->conn, chan, ECONNRESET);
goto drop;
}
- l2cap_data_channel_sframe(sk, control, skb);
+ l2cap_data_channel_sframe(chan, control, skb);
}
return 0;
@@ -3538,21 +3608,23 @@ drop:
static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk_buff *skb)
{
+ struct l2cap_chan *chan;
struct sock *sk;
struct l2cap_pinfo *pi;
u16 control;
u8 tx_seq;
int len;
- sk = l2cap_get_chan_by_scid(&conn->chan_list, cid);
- if (!sk) {
+ chan = l2cap_get_chan_by_scid(conn, cid);
+ if (!chan) {
BT_DBG("unknown cid 0x%4.4x", cid);
goto drop;
}
+ sk = chan->sk;
pi = l2cap_pi(sk);
- BT_DBG("sk %p, len %d", sk, skb->len);
+ BT_DBG("chan %p, len %d", chan, skb->len);
if (sk->sk_state != BT_CONNECTED)
goto drop;
@@ -3600,17 +3672,17 @@ static inline int l2cap_data_channel(struct l2cap_conn *conn, u16 cid, struct sk
tx_seq = __get_txseq(control);
- if (pi->expected_tx_seq == tx_seq)
- pi->expected_tx_seq = (pi->expected_tx_seq + 1) % 64;
+ if (chan->expected_tx_seq == tx_seq)
+ chan->expected_tx_seq = (chan->expected_tx_seq + 1) % 64;
else
- pi->expected_tx_seq = (tx_seq + 1) % 64;
+ chan->expected_tx_seq = (tx_seq + 1) % 64;
- l2cap_streaming_reassembly_sdu(sk, skb, control);
+ l2cap_streaming_reassembly_sdu(chan, skb, control);
goto done;
default:
- BT_DBG("sk %p: bad mode 0x%2.2x", sk, pi->mode);
+ BT_DBG("chan %p: bad mode 0x%2.2x", chan, pi->mode);
break;
}
@@ -3654,6 +3726,36 @@ done:
return 0;
}
+static inline int l2cap_att_channel(struct l2cap_conn *conn, __le16 cid, struct sk_buff *skb)
+{
+ struct sock *sk;
+
+ sk = l2cap_get_sock_by_scid(0, cid, conn->src);
+ if (!sk)
+ goto drop;
+
+ bh_lock_sock(sk);
+
+ BT_DBG("sk %p, len %d", sk, skb->len);
+
+ if (sk->sk_state != BT_BOUND && sk->sk_state != BT_CONNECTED)
+ goto drop;
+
+ if (l2cap_pi(sk)->imtu < skb->len)
+ goto drop;
+
+ if (!sock_queue_rcv_skb(sk, skb))
+ goto done;
+
+drop:
+ kfree_skb(skb);
+
+done:
+ if (sk)
+ bh_unlock_sock(sk);
+ return 0;
+}
+
static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
{
struct l2cap_hdr *lh = (void *) skb->data;
@@ -3683,6 +3785,10 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
l2cap_conless_channel(conn, psm, skb);
break;
+ case L2CAP_CID_LE_DATA:
+ l2cap_att_channel(conn, cid, skb);
+ break;
+
default:
l2cap_data_channel(conn, cid, skb);
break;
@@ -3786,20 +3892,19 @@ static inline void l2cap_check_encryption(struct sock *sk, u8 encrypt)
static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
{
- struct l2cap_chan_list *l;
struct l2cap_conn *conn = hcon->l2cap_data;
- struct sock *sk;
+ struct l2cap_chan *chan;
if (!conn)
return 0;
- l = &conn->chan_list;
-
BT_DBG("conn %p", conn);
- read_lock(&l->lock);
+ read_lock(&conn->chan_lock);
+
+ list_for_each_entry(chan, &conn->chan_l, list) {
+ struct sock *sk = chan->sk;
- for (sk = l->head; sk; sk = l2cap_pi(sk)->next_c) {
bh_lock_sock(sk);
if (l2cap_pi(sk)->conf_state & L2CAP_CONF_CONNECT_PEND) {
@@ -3820,10 +3925,10 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
req.scid = cpu_to_le16(l2cap_pi(sk)->scid);
req.psm = l2cap_pi(sk)->psm;
- l2cap_pi(sk)->ident = l2cap_get_ident(conn);
+ chan->ident = l2cap_get_ident(conn);
l2cap_pi(sk)->conf_state |= L2CAP_CONF_CONNECT_PEND;
- l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
+ l2cap_send_cmd(conn, chan->ident,
L2CAP_CONN_REQ, sizeof(req), &req);
} else {
l2cap_sock_clear_timer(sk);
@@ -3846,14 +3951,14 @@ static int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
rsp.result = cpu_to_le16(result);
rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
- l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
- L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+ l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+ sizeof(rsp), &rsp);
}
bh_unlock_sock(sk);
}
- read_unlock(&l->lock);
+ read_unlock(&conn->chan_lock);
return 0;
}
@@ -3872,7 +3977,7 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
if (!(flags & ACL_CONT)) {
struct l2cap_hdr *hdr;
- struct sock *sk;
+ struct l2cap_chan *chan;
u16 cid;
int len;
@@ -3910,18 +4015,21 @@ static int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 fl
goto drop;
}
- sk = l2cap_get_chan_by_scid(&conn->chan_list, cid);
+ chan = l2cap_get_chan_by_scid(conn, cid);
- if (sk && l2cap_pi(sk)->imtu < len - L2CAP_HDR_SIZE) {
- BT_ERR("Frame exceeding recv MTU (len %d, MTU %d)",
- len, l2cap_pi(sk)->imtu);
- bh_unlock_sock(sk);
- l2cap_conn_unreliable(conn, ECOMM);
- goto drop;
- }
+ if (chan && chan->sk) {
+ struct sock *sk = chan->sk;
- if (sk)
+ if (l2cap_pi(sk)->imtu < len - L2CAP_HDR_SIZE) {
+ BT_ERR("Frame exceeding recv MTU (len %d, "
+ "MTU %d)", len,
+ l2cap_pi(sk)->imtu);
+ bh_unlock_sock(sk);
+ l2cap_conn_unreliable(conn, ECOMM);
+ goto drop;
+ }
bh_unlock_sock(sk);
+ }
/* Allocate skb for the complete frame (with header) */
conn->rx_skb = bt_skb_alloc(len, GFP_ATOMIC);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f77308e63e5..473e5973d8f 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -269,7 +269,7 @@ static int l2cap_sock_listen(struct socket *sock, int backlog)
goto done;
}
- if (!l2cap_pi(sk)->psm && !l2cap_pi(sk)->dcid) {
+ if (!l2cap_pi(sk)->psm && !l2cap_pi(sk)->scid) {
bdaddr_t *src = &bt_sk(sk)->src;
u16 psm;
@@ -757,35 +757,37 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock, struct ms
case L2CAP_MODE_ERTM:
case L2CAP_MODE_STREAMING:
/* Entire SDU fits into one PDU */
- if (len <= pi->remote_mps) {
+ if (len <= pi->chan->remote_mps) {
control = L2CAP_SDU_UNSEGMENTED;
skb = l2cap_create_iframe_pdu(sk, msg, len, control, 0);
if (IS_ERR(skb)) {
err = PTR_ERR(skb);
goto done;
}
- __skb_queue_tail(TX_QUEUE(sk), skb);
+ __skb_queue_tail(&pi->chan->tx_q, skb);
- if (sk->sk_send_head == NULL)
- sk->sk_send_head = skb;
+ if (pi->chan->tx_send_head == NULL)
+ pi->chan->tx_send_head = skb;
} else {
/* Segment SDU into multiples PDUs */
- err = l2cap_sar_segment_sdu(sk, msg, len);
+ err = l2cap_sar_segment_sdu(pi->chan, msg, len);
if (err < 0)
goto done;
}
if (pi->mode == L2CAP_MODE_STREAMING) {
- l2cap_streaming_send(sk);
- } else {
- if ((pi->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
- (pi->conn_state & L2CAP_CONN_WAIT_F)) {
- err = len;
- break;
- }
- err = l2cap_ertm_send(sk);
+ l2cap_streaming_send(pi->chan);
+ err = len;
+ break;
+ }
+
+ if ((pi->chan->conn_state & L2CAP_CONN_REMOTE_BUSY) &&
+ (pi->chan->conn_state & L2CAP_CONN_WAIT_F)) {
+ err = len;
+ break;
}
+ err = l2cap_ertm_send(pi->chan);
if (err >= 0)
err = len;
@@ -808,29 +810,7 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock, struct ms
lock_sock(sk);
if (sk->sk_state == BT_CONNECT2 && bt_sk(sk)->defer_setup) {
- struct l2cap_conn_rsp rsp;
- struct l2cap_conn *conn = l2cap_pi(sk)->conn;
- u8 buf[128];
-
- sk->sk_state = BT_CONFIG;
-
- rsp.scid = cpu_to_le16(l2cap_pi(sk)->dcid);
- rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
- rsp.result = cpu_to_le16(L2CAP_CR_SUCCESS);
- rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
- l2cap_send_cmd(l2cap_pi(sk)->conn, l2cap_pi(sk)->ident,
- L2CAP_CONN_RSP, sizeof(rsp), &rsp);
-
- if (l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) {
- release_sock(sk);
- return 0;
- }
-
- l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT;
- l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_CONF_REQ,
- l2cap_build_conf_req(sk, buf), buf);
- l2cap_pi(sk)->num_conf_req++;
-
+ __l2cap_connect_rsp_defer(sk);
release_sock(sk);
return 0;
}
@@ -886,6 +866,7 @@ static void l2cap_sock_cleanup_listen(struct sock *parent)
void __l2cap_sock_close(struct sock *sk, int reason)
{
struct l2cap_conn *conn = l2cap_pi(sk)->conn;
+ struct l2cap_chan *chan = l2cap_pi(sk)->chan;
BT_DBG("sk %p state %d socket %p", sk, sk->sk_state, sk->sk_socket);
@@ -900,9 +881,9 @@ void __l2cap_sock_close(struct sock *sk, int reason)
sk->sk_type == SOCK_STREAM) &&
conn->hcon->type == ACL_LINK) {
l2cap_sock_set_timer(sk, sk->sk_sndtimeo);
- l2cap_send_disconn_req(conn, sk, reason);
+ l2cap_send_disconn_req(conn, chan, reason);
} else
- l2cap_chan_del(sk, reason);
+ l2cap_chan_del(chan, reason);
break;
case BT_CONNECT2:
@@ -921,16 +902,16 @@ void __l2cap_sock_close(struct sock *sk, int reason)
rsp.dcid = cpu_to_le16(l2cap_pi(sk)->scid);
rsp.result = cpu_to_le16(result);
rsp.status = cpu_to_le16(L2CAP_CS_NO_INFO);
- l2cap_send_cmd(conn, l2cap_pi(sk)->ident,
- L2CAP_CONN_RSP, sizeof(rsp), &rsp);
+ l2cap_send_cmd(conn, chan->ident, L2CAP_CONN_RSP,
+ sizeof(rsp), &rsp);
}
- l2cap_chan_del(sk, reason);
+ l2cap_chan_del(chan, reason);
break;
case BT_CONNECT:
case BT_DISCONN:
- l2cap_chan_del(sk, reason);
+ l2cap_chan_del(chan, reason);
break;
default:
@@ -1035,12 +1016,7 @@ void l2cap_sock_init(struct sock *sk, struct sock *parent)
}
/* Default config options */
- pi->conf_len = 0;
pi->flush_to = L2CAP_DEFAULT_FLUSH_TO;
- skb_queue_head_init(TX_QUEUE(sk));
- skb_queue_head_init(SREJ_QUEUE(sk));
- skb_queue_head_init(BUSY_QUEUE(sk));
- INIT_LIST_HEAD(SREJ_LIST(sk));
}
static struct proto l2cap_proto = {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-30 21:15:55 +0000