]> err.no Git - linux-2.6/blobdiff - net/wireless/nl80211.c
alpha: fix module load failures on smp (bug #10926)
[linux-2.6] / net / wireless / nl80211.c
index 5b3474798b8d228e6a39ffacae3961f2e76a18c7..fb75f265b39c6d989400acbe44b3da731a3553f1 100644 (file)
@@ -81,8 +81,12 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
        [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
        [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
                                               .len = NL80211_MAX_SUPP_RATES },
+       [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
        [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
        [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED },
+       [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
+                               .len = IEEE80211_MAX_MESH_ID_LEN },
+       [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
 };
 
 /* message building helper */
@@ -183,7 +187,8 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
        return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-       return genlmsg_cancel(msg, hdr);
+       genlmsg_cancel(msg, hdr);
+       return -EMSGSIZE;
 }
 
 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
@@ -269,7 +274,8 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
        return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-       return genlmsg_cancel(msg, hdr);
+       genlmsg_cancel(msg, hdr);
+       return -EMSGSIZE;
 }
 
 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
@@ -369,11 +375,14 @@ static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 {
        struct cfg80211_registered_device *drv;
+       struct vif_params params;
        int err, ifindex;
        enum nl80211_iftype type;
        struct net_device *dev;
        u32 flags;
 
+       memset(&params, 0, sizeof(params));
+
        if (info->attrs[NL80211_ATTR_IFTYPE]) {
                type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
                if (type > NL80211_IFTYPE_MAX)
@@ -392,12 +401,18 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
                goto unlock;
        }
 
+       if (type == NL80211_IFTYPE_MESH_POINT &&
+           info->attrs[NL80211_ATTR_MESH_ID]) {
+               params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
+               params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
+       }
+
        rtnl_lock();
        err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
                                  info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
                                  &flags);
        err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
-                                           type, err ? NULL : &flags);
+                                           type, err ? NULL : &flags, &params);
        rtnl_unlock();
 
  unlock:
@@ -408,10 +423,13 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
 {
        struct cfg80211_registered_device *drv;
+       struct vif_params params;
        int err;
        enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
        u32 flags;
 
+       memset(&params, 0, sizeof(params));
+
        if (!info->attrs[NL80211_ATTR_IFNAME])
                return -EINVAL;
 
@@ -430,15 +448,22 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
                goto unlock;
        }
 
+       if (type == NL80211_IFTYPE_MESH_POINT &&
+           info->attrs[NL80211_ATTR_MESH_ID]) {
+               params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
+               params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
+       }
+
        rtnl_lock();
        err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
                                  info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
                                  &flags);
        err = drv->ops->add_virtual_intf(&drv->wiphy,
                nla_data(info->attrs[NL80211_ATTR_IFNAME]),
-               type, err ? NULL : &flags);
+               type, err ? NULL : &flags, &params);
        rtnl_unlock();
 
+
  unlock:
        cfg80211_put_dev(drv);
        return err;
@@ -866,10 +891,10 @@ static int parse_station_flags(struct nlattr *nla, u32 *staflags)
 
 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
                                int flags, struct net_device *dev,
-                               u8 *mac_addr, struct station_stats *stats)
+                               u8 *mac_addr, struct station_info *sinfo)
 {
        void *hdr;
-       struct nlattr *statsattr;
+       struct nlattr *sinfoattr;
 
        hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
        if (!hdr)
@@ -878,38 +903,111 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
        NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
        NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
 
-       statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS);
-       if (!statsattr)
+       sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
+       if (!sinfoattr)
                goto nla_put_failure;
-       if (stats->filled & STATION_STAT_INACTIVE_TIME)
-               NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME,
-                           stats->inactive_time);
-       if (stats->filled & STATION_STAT_RX_BYTES)
-               NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES,
-                           stats->rx_bytes);
-       if (stats->filled & STATION_STAT_TX_BYTES)
-               NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES,
-                           stats->tx_bytes);
-
-       nla_nest_end(msg, statsattr);
+       if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
+               NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
+                           sinfo->inactive_time);
+       if (sinfo->filled & STATION_INFO_RX_BYTES)
+               NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES,
+                           sinfo->rx_bytes);
+       if (sinfo->filled & STATION_INFO_TX_BYTES)
+               NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES,
+                           sinfo->tx_bytes);
+       if (sinfo->filled & STATION_INFO_LLID)
+               NLA_PUT_U16(msg, NL80211_STA_INFO_LLID,
+                           sinfo->llid);
+       if (sinfo->filled & STATION_INFO_PLID)
+               NLA_PUT_U16(msg, NL80211_STA_INFO_PLID,
+                           sinfo->plid);
+       if (sinfo->filled & STATION_INFO_PLINK_STATE)
+               NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE,
+                           sinfo->plink_state);
+
+       nla_nest_end(msg, sinfoattr);
 
        return genlmsg_end(msg, hdr);
 
  nla_put_failure:
-       return genlmsg_cancel(msg, hdr);
+       genlmsg_cancel(msg, hdr);
+       return -EMSGSIZE;
 }
 
+static int nl80211_dump_station(struct sk_buff *skb,
+               struct netlink_callback *cb)
+{
+       int wp_idx = 0;
+       int if_idx = 0;
+       int sta_idx = cb->args[2];
+       int wp_start = cb->args[0];
+       int if_start = cb->args[1];
+       struct station_info sinfo;
+       struct cfg80211_registered_device *dev;
+       struct wireless_dev *wdev;
+       u8 mac_addr[ETH_ALEN];
+       int err;
+       int exit = 0;
+
+       /* TODO: filter by device */
+       mutex_lock(&cfg80211_drv_mutex);
+       list_for_each_entry(dev, &cfg80211_drv_list, list) {
+               if (exit)
+                       break;
+               if (++wp_idx < wp_start)
+                       continue;
+               if_idx = 0;
+
+               mutex_lock(&dev->devlist_mtx);
+               list_for_each_entry(wdev, &dev->netdev_list, list) {
+                       if (exit)
+                               break;
+                       if (++if_idx < if_start)
+                               continue;
+                       if (!dev->ops->dump_station)
+                               continue;
+
+                       for (;; ++sta_idx) {
+                               rtnl_lock();
+                               err = dev->ops->dump_station(&dev->wiphy,
+                                               wdev->netdev, sta_idx, mac_addr,
+                                               &sinfo);
+                               rtnl_unlock();
+                               if (err) {
+                                       sta_idx = 0;
+                                       break;
+                               }
+                               if (nl80211_send_station(skb,
+                                               NETLINK_CB(cb->skb).pid,
+                                               cb->nlh->nlmsg_seq, NLM_F_MULTI,
+                                               wdev->netdev, mac_addr,
+                                               &sinfo) < 0) {
+                                       exit = 1;
+                                       break;
+                               }
+                       }
+               }
+               mutex_unlock(&dev->devlist_mtx);
+       }
+       mutex_unlock(&cfg80211_drv_mutex);
+
+       cb->args[0] = wp_idx;
+       cb->args[1] = if_idx;
+       cb->args[2] = sta_idx;
+
+       return skb->len;
+}
 
 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
 {
        struct cfg80211_registered_device *drv;
        int err;
        struct net_device *dev;
-       struct station_stats stats;
+       struct station_info sinfo;
        struct sk_buff *msg;
        u8 *mac_addr = NULL;
 
-       memset(&stats, 0, sizeof(stats));
+       memset(&sinfo, 0, sizeof(sinfo));
 
        if (!info->attrs[NL80211_ATTR_MAC])
                return -EINVAL;
@@ -926,15 +1024,18 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
        }
 
        rtnl_lock();
-       err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats);
+       err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo);
        rtnl_unlock();
 
+       if (err)
+               goto out;
+
        msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
        if (!msg)
                goto out;
 
        if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
-                                dev, mac_addr, &stats) < 0)
+                                dev, mac_addr, &sinfo) < 0)
                goto out_free;
 
        err = genlmsg_unicast(msg, info->snd_pid);
@@ -1005,6 +1106,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
                                &params.station_flags))
                return -EINVAL;
 
+       if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
+               params.plink_action =
+                   nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
+
        err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
        if (err)
                return err;
@@ -1059,7 +1164,7 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
                nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
        params.listen_interval =
                nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
-       params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
+       params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
 
        if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
                                &params.station_flags))
@@ -1119,6 +1224,274 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
        return err;
 }
 
+static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
+                               int flags, struct net_device *dev,
+                               u8 *dst, u8 *next_hop,
+                               struct mpath_info *pinfo)
+{
+       void *hdr;
+       struct nlattr *pinfoattr;
+
+       hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
+       if (!hdr)
+               return -1;
+
+       NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+       NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, dst);
+       NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop);
+
+       pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
+       if (!pinfoattr)
+               goto nla_put_failure;
+       if (pinfo->filled & MPATH_INFO_FRAME_QLEN)
+               NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
+                           pinfo->frame_qlen);
+       if (pinfo->filled & MPATH_INFO_DSN)
+               NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN,
+                           pinfo->dsn);
+       if (pinfo->filled & MPATH_INFO_METRIC)
+               NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC,
+                           pinfo->metric);
+       if (pinfo->filled & MPATH_INFO_EXPTIME)
+               NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME,
+                           pinfo->exptime);
+       if (pinfo->filled & MPATH_INFO_FLAGS)
+               NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS,
+                           pinfo->flags);
+       if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT)
+               NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
+                           pinfo->discovery_timeout);
+       if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES)
+               NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
+                           pinfo->discovery_retries);
+
+       nla_nest_end(msg, pinfoattr);
+
+       return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+       genlmsg_cancel(msg, hdr);
+       return -EMSGSIZE;
+}
+
+static int nl80211_dump_mpath(struct sk_buff *skb,
+               struct netlink_callback *cb)
+{
+       int wp_idx = 0;
+       int if_idx = 0;
+       int sta_idx = cb->args[2];
+       int wp_start = cb->args[0];
+       int if_start = cb->args[1];
+       struct mpath_info pinfo;
+       struct cfg80211_registered_device *dev;
+       struct wireless_dev *wdev;
+       u8 dst[ETH_ALEN];
+       u8 next_hop[ETH_ALEN];
+       int err;
+       int exit = 0;
+
+       /* TODO: filter by device */
+       mutex_lock(&cfg80211_drv_mutex);
+       list_for_each_entry(dev, &cfg80211_drv_list, list) {
+               if (exit)
+                       break;
+               if (++wp_idx < wp_start)
+                       continue;
+               if_idx = 0;
+
+               mutex_lock(&dev->devlist_mtx);
+               list_for_each_entry(wdev, &dev->netdev_list, list) {
+                       if (exit)
+                               break;
+                       if (++if_idx < if_start)
+                               continue;
+                       if (!dev->ops->dump_mpath)
+                               continue;
+
+                       for (;; ++sta_idx) {
+                               rtnl_lock();
+                               err = dev->ops->dump_mpath(&dev->wiphy,
+                                               wdev->netdev, sta_idx, dst,
+                                               next_hop, &pinfo);
+                               rtnl_unlock();
+                               if (err) {
+                                       sta_idx = 0;
+                                       break;
+                               }
+                               if (nl80211_send_mpath(skb,
+                                               NETLINK_CB(cb->skb).pid,
+                                               cb->nlh->nlmsg_seq, NLM_F_MULTI,
+                                               wdev->netdev, dst, next_hop,
+                                               &pinfo) < 0) {
+                                       exit = 1;
+                                       break;
+                               }
+                       }
+               }
+               mutex_unlock(&dev->devlist_mtx);
+       }
+       mutex_unlock(&cfg80211_drv_mutex);
+
+       cb->args[0] = wp_idx;
+       cb->args[1] = if_idx;
+       cb->args[2] = sta_idx;
+
+       return skb->len;
+}
+
+static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
+{
+       struct cfg80211_registered_device *drv;
+       int err;
+       struct net_device *dev;
+       struct mpath_info pinfo;
+       struct sk_buff *msg;
+       u8 *dst = NULL;
+       u8 next_hop[ETH_ALEN];
+
+       memset(&pinfo, 0, sizeof(pinfo));
+
+       if (!info->attrs[NL80211_ATTR_MAC])
+               return -EINVAL;
+
+       dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+       err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+       if (err)
+               return err;
+
+       if (!drv->ops->get_mpath) {
+               err = -EOPNOTSUPP;
+               goto out;
+       }
+
+       rtnl_lock();
+       err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo);
+       rtnl_unlock();
+
+       if (err)
+               goto out;
+
+       msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+       if (!msg)
+               goto out;
+
+       if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
+                                dev, dst, next_hop, &pinfo) < 0)
+               goto out_free;
+
+       err = genlmsg_unicast(msg, info->snd_pid);
+       goto out;
+
+ out_free:
+       nlmsg_free(msg);
+
+ out:
+       cfg80211_put_dev(drv);
+       dev_put(dev);
+       return err;
+}
+
+static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
+{
+       struct cfg80211_registered_device *drv;
+       int err;
+       struct net_device *dev;
+       u8 *dst = NULL;
+       u8 *next_hop = NULL;
+
+       if (!info->attrs[NL80211_ATTR_MAC])
+               return -EINVAL;
+
+       if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
+               return -EINVAL;
+
+       dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
+       next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
+
+       err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+       if (err)
+               return err;
+
+       if (!drv->ops->change_mpath) {
+               err = -EOPNOTSUPP;
+               goto out;
+       }
+
+       rtnl_lock();
+       err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop);
+       rtnl_unlock();
+
+ out:
+       cfg80211_put_dev(drv);
+       dev_put(dev);
+       return err;
+}
+static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
+{
+       struct cfg80211_registered_device *drv;
+       int err;
+       struct net_device *dev;
+       u8 *dst = NULL;
+       u8 *next_hop = NULL;
+
+       if (!info->attrs[NL80211_ATTR_MAC])
+               return -EINVAL;
+
+       if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
+               return -EINVAL;
+
+       dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
+       next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
+
+       err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+       if (err)
+               return err;
+
+       if (!drv->ops->add_mpath) {
+               err = -EOPNOTSUPP;
+               goto out;
+       }
+
+       rtnl_lock();
+       err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop);
+       rtnl_unlock();
+
+ out:
+       cfg80211_put_dev(drv);
+       dev_put(dev);
+       return err;
+}
+
+static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
+{
+       struct cfg80211_registered_device *drv;
+       int err;
+       struct net_device *dev;
+       u8 *dst = NULL;
+
+       if (info->attrs[NL80211_ATTR_MAC])
+               dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
+
+       err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+       if (err)
+               return err;
+
+       if (!drv->ops->del_mpath) {
+               err = -EOPNOTSUPP;
+               goto out;
+       }
+
+       rtnl_lock();
+       err = drv->ops->del_mpath(&drv->wiphy, dev, dst);
+       rtnl_unlock();
+
+ out:
+       cfg80211_put_dev(drv);
+       dev_put(dev);
+       return err;
+}
+
 static struct genl_ops nl80211_ops[] = {
        {
                .cmd = NL80211_CMD_GET_WIPHY,
@@ -1203,7 +1576,7 @@ static struct genl_ops nl80211_ops[] = {
        {
                .cmd = NL80211_CMD_GET_STATION,
                .doit = nl80211_get_station,
-               /* TODO: implement dumpit */
+               .dumpit = nl80211_dump_station,
                .policy = nl80211_policy,
                .flags = GENL_ADMIN_PERM,
        },
@@ -1225,6 +1598,31 @@ static struct genl_ops nl80211_ops[] = {
                .policy = nl80211_policy,
                .flags = GENL_ADMIN_PERM,
        },
+       {
+               .cmd = NL80211_CMD_GET_MPATH,
+               .doit = nl80211_get_mpath,
+               .dumpit = nl80211_dump_mpath,
+               .policy = nl80211_policy,
+               .flags = GENL_ADMIN_PERM,
+       },
+       {
+               .cmd = NL80211_CMD_SET_MPATH,
+               .doit = nl80211_set_mpath,
+               .policy = nl80211_policy,
+               .flags = GENL_ADMIN_PERM,
+       },
+       {
+               .cmd = NL80211_CMD_NEW_MPATH,
+               .doit = nl80211_new_mpath,
+               .policy = nl80211_policy,
+               .flags = GENL_ADMIN_PERM,
+       },
+       {
+               .cmd = NL80211_CMD_DEL_MPATH,
+               .doit = nl80211_del_mpath,
+               .policy = nl80211_policy,
+               .flags = GENL_ADMIN_PERM,
+       },
 };
 
 /* multicast groups */