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-rw-r--r--net/ieee802154/netlink.c172
1 files changed, 164 insertions, 8 deletions
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 27eda9fdf3c..2106ecbf030 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -19,6 +19,7 @@
* Written by:
* Sergey Lapin <slapin@ossfans.org>
* Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ * Maxim Osipov <maxim.osipov@siemens.com>
*/
#include <linux/kernel.h>
@@ -26,10 +27,12 @@
#include <linux/netdevice.h>
#include <net/netlink.h>
#include <net/genetlink.h>
+#include <net/sock.h>
#include <linux/nl802154.h>
-#include <net/ieee802154/af_ieee802154.h>
-#include <net/ieee802154/nl802154.h>
-#include <net/ieee802154/netdevice.h>
+#include <net/af_ieee802154.h>
+#include <net/nl802154.h>
+#include <net/ieee802154.h>
+#include <net/ieee802154_netdev.h>
static unsigned int ieee802154_seq_num;
@@ -73,7 +76,7 @@ static int ieee802154_nl_finish(struct sk_buff *msg)
/* XXX: nlh is right at the start of msg */
void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
- if (!genlmsg_end(msg, hdr))
+ if (genlmsg_end(msg, hdr) < 0)
goto out;
return genlmsg_multicast(msg, 0, ieee802154_coord_mcgrp.id,
@@ -229,7 +232,7 @@ nla_put_failure:
EXPORT_SYMBOL(ieee802154_nl_beacon_indic);
int ieee802154_nl_scan_confirm(struct net_device *dev,
- u8 status, u8 scan_type, u32 unscanned,
+ u8 status, u8 scan_type, u32 unscanned, u8 page,
u8 *edl/* , struct list_head *pan_desc_list */)
{
struct sk_buff *msg;
@@ -248,6 +251,7 @@ int ieee802154_nl_scan_confirm(struct net_device *dev,
NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
NLA_PUT_U8(msg, IEEE802154_ATTR_SCAN_TYPE, scan_type);
NLA_PUT_U32(msg, IEEE802154_ATTR_CHANNELS, unscanned);
+ NLA_PUT_U8(msg, IEEE802154_ATTR_PAGE, page);
if (edl)
NLA_PUT(msg, IEEE802154_ATTR_ED_LIST, 27, edl);
@@ -260,6 +264,60 @@ nla_put_failure:
}
EXPORT_SYMBOL(ieee802154_nl_scan_confirm);
+int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
+{
+ struct sk_buff *msg;
+
+ pr_debug("%s\n", __func__);
+
+ msg = ieee802154_nl_create(0, IEEE802154_START_CONF);
+ if (!msg)
+ return -ENOBUFS;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+
+ NLA_PUT_U8(msg, IEEE802154_ATTR_STATUS, status);
+
+ return ieee802154_nl_finish(msg);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+EXPORT_SYMBOL(ieee802154_nl_start_confirm);
+
+static int ieee802154_nl_fill_iface(struct sk_buff *msg, u32 pid,
+ u32 seq, int flags, struct net_device *dev)
+{
+ void *hdr;
+
+ pr_debug("%s\n", __func__);
+
+ hdr = genlmsg_put(msg, 0, seq, &ieee802154_coordinator_family, flags,
+ IEEE802154_LIST_IFACE);
+ if (!hdr)
+ goto out;
+
+ NLA_PUT_STRING(msg, IEEE802154_ATTR_DEV_NAME, dev->name);
+ NLA_PUT_U32(msg, IEEE802154_ATTR_DEV_INDEX, dev->ifindex);
+
+ NLA_PUT(msg, IEEE802154_ATTR_HW_ADDR, IEEE802154_ADDR_LEN,
+ dev->dev_addr);
+ NLA_PUT_U16(msg, IEEE802154_ATTR_SHORT_ADDR,
+ ieee802154_mlme_ops(dev)->get_short_addr(dev));
+ NLA_PUT_U16(msg, IEEE802154_ATTR_PAN_ID,
+ ieee802154_mlme_ops(dev)->get_pan_id(dev));
+ return genlmsg_end(msg, hdr);
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+out:
+ return -EMSGSIZE;
+}
+
/* Requests from userspace */
static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
{
@@ -272,7 +330,7 @@ static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
dev = dev_get_by_name(&init_net, name);
} else if (info->attrs[IEEE802154_ATTR_DEV_INDEX])
dev = dev_get_by_index(&init_net,
- nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
+ nla_get_u32(info->attrs[IEEE802154_ATTR_DEV_INDEX]));
else
return NULL;
@@ -292,6 +350,7 @@ static int ieee802154_associate_req(struct sk_buff *skb,
{
struct net_device *dev;
struct ieee802154_addr addr;
+ u8 page;
int ret = -EINVAL;
if (!info->attrs[IEEE802154_ATTR_CHANNEL] ||
@@ -317,8 +376,14 @@ static int ieee802154_associate_req(struct sk_buff *skb,
}
addr.pan_id = nla_get_u16(info->attrs[IEEE802154_ATTR_COORD_PAN_ID]);
+ if (info->attrs[IEEE802154_ATTR_PAGE])
+ page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
+ else
+ page = 0;
+
ret = ieee802154_mlme_ops(dev)->assoc_req(dev, &addr,
nla_get_u8(info->attrs[IEEE802154_ATTR_CHANNEL]),
+ page,
nla_get_u8(info->attrs[IEEE802154_ATTR_CAPABILITY]));
dev_put(dev);
@@ -401,6 +466,7 @@ static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
struct ieee802154_addr addr;
u8 channel, bcn_ord, sf_ord;
+ u8 page;
int pan_coord, blx, coord_realign;
int ret;
@@ -431,7 +497,19 @@ static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
blx = nla_get_u8(info->attrs[IEEE802154_ATTR_BAT_EXT]);
coord_realign = nla_get_u8(info->attrs[IEEE802154_ATTR_COORD_REALIGN]);
- ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel,
+ if (info->attrs[IEEE802154_ATTR_PAGE])
+ page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
+ else
+ page = 0;
+
+
+ if (addr.short_addr == IEEE802154_ADDR_BROADCAST) {
+ ieee802154_nl_start_confirm(dev, IEEE802154_NO_SHORT_ADDRESS);
+ dev_put(dev);
+ return -EINVAL;
+ }
+
+ ret = ieee802154_mlme_ops(dev)->start_req(dev, &addr, channel, page,
bcn_ord, sf_ord, pan_coord, blx, coord_realign);
dev_put(dev);
@@ -445,6 +523,7 @@ static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
u8 type;
u32 channels;
u8 duration;
+ u8 page;
if (!info->attrs[IEEE802154_ATTR_SCAN_TYPE] ||
!info->attrs[IEEE802154_ATTR_CHANNELS] ||
@@ -459,13 +538,80 @@ static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
channels = nla_get_u32(info->attrs[IEEE802154_ATTR_CHANNELS]);
duration = nla_get_u8(info->attrs[IEEE802154_ATTR_DURATION]);
- ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels,
+ if (info->attrs[IEEE802154_ATTR_PAGE])
+ page = nla_get_u8(info->attrs[IEEE802154_ATTR_PAGE]);
+ else
+ page = 0;
+
+
+ ret = ieee802154_mlme_ops(dev)->scan_req(dev, type, channels, page,
duration);
dev_put(dev);
return ret;
}
+static int ieee802154_list_iface(struct sk_buff *skb,
+ struct genl_info *info)
+{
+ /* Request for interface name, index, type, IEEE address,
+ PAN Id, short address */
+ struct sk_buff *msg;
+ struct net_device *dev = NULL;
+ int rc = -ENOBUFS;
+
+ pr_debug("%s\n", __func__);
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ goto out_dev;
+
+ rc = ieee802154_nl_fill_iface(msg, info->snd_pid, info->snd_seq,
+ 0, dev);
+ if (rc < 0)
+ goto out_free;
+
+ dev_put(dev);
+
+ return genlmsg_unicast(&init_net, msg, info->snd_pid);
+out_free:
+ nlmsg_free(msg);
+out_dev:
+ dev_put(dev);
+ return rc;
+
+}
+
+static int ieee802154_dump_iface(struct sk_buff *skb,
+ struct netlink_callback *cb)
+{
+ struct net *net = sock_net(skb->sk);
+ struct net_device *dev;
+ int idx;
+ int s_idx = cb->args[0];
+
+ pr_debug("%s\n", __func__);
+
+ idx = 0;
+ for_each_netdev(net, dev) {
+ if (idx < s_idx || (dev->type != ARPHRD_IEEE802154))
+ goto cont;
+
+ if (ieee802154_nl_fill_iface(skb, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI, dev) < 0)
+ break;
+cont:
+ idx++;
+ }
+ cb->args[0] = idx;
+
+ return skb->len;
+}
+
#define IEEE802154_OP(_cmd, _func) \
{ \
.cmd = _cmd, \
@@ -475,12 +621,22 @@ static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
.flags = GENL_ADMIN_PERM, \
}
+#define IEEE802154_DUMP(_cmd, _func, _dump) \
+ { \
+ .cmd = _cmd, \
+ .policy = ieee802154_policy, \
+ .doit = _func, \
+ .dumpit = _dump, \
+ }
+
static struct genl_ops ieee802154_coordinator_ops[] = {
IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
+ IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
+ ieee802154_dump_iface),
};
static int __init ieee802154_nl_init(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-08 10:29:15 +0000