diff options
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3abcbbada6d..afa283841e8 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1424,6 +1424,10 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, } CMD(start_p2p_device, START_P2P_DEVICE); CMD(set_mcast_rate, SET_MCAST_RATE); + if (split) { + CMD(crit_proto_start, CRIT_PROTOCOL_START); + CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); + } #ifdef CONFIG_NL80211_TESTMODE CMD(testmode_cmd, TESTMODE); @@ -8216,6 +8220,64 @@ static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info) return rdev_update_ft_ies(rdev, dev, &ft_params); } +static int nl80211_crit_protocol_start(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct wireless_dev *wdev = info->user_ptr[1]; + enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC; + u16 duration; + int ret; + + if (!rdev->ops->crit_proto_start) + return -EOPNOTSUPP; + + if (WARN_ON(!rdev->ops->crit_proto_stop)) + return -EINVAL; + + if (rdev->crit_proto_nlportid) + return -EBUSY; + + /* determine protocol if provided */ + if (info->attrs[NL80211_ATTR_CRIT_PROT_ID]) + proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]); + + if (proto >= NUM_NL80211_CRIT_PROTO) + return -EINVAL; + + /* timeout must be provided */ + if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]) + return -EINVAL; + + duration = + nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]); + + if (duration > NL80211_CRIT_PROTO_MAX_DURATION) + return -ERANGE; + + ret = rdev_crit_proto_start(rdev, wdev, proto, duration); + if (!ret) + rdev->crit_proto_nlportid = info->snd_portid; + + return ret; +} + +static int nl80211_crit_protocol_stop(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct wireless_dev *wdev = info->user_ptr[1]; + + if (!rdev->ops->crit_proto_stop) + return -EOPNOTSUPP; + + if (rdev->crit_proto_nlportid) { + rdev->crit_proto_nlportid = 0; + rdev_crit_proto_stop(rdev, wdev); + } + return 0; +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -8905,6 +8967,22 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_CRIT_PROTOCOL_START, + .doit = nl80211_crit_protocol_start, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP, + .doit = nl80211_crit_protocol_stop, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_WDEV_UP | + NL80211_FLAG_NEED_RTNL, + } }; static struct genl_multicast_group nl80211_mlme_mcgrp = { @@ -10650,6 +10728,45 @@ void cfg80211_ft_event(struct net_device *netdev, } EXPORT_SYMBOL(cfg80211_ft_event); +void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) +{ + struct cfg80211_registered_device *rdev; + struct sk_buff *msg; + void *hdr; + u32 nlportid; + + rdev = wiphy_to_dev(wdev->wiphy); + if (!rdev->crit_proto_nlportid) + return; + + nlportid = rdev->crit_proto_nlportid; + rdev->crit_proto_nlportid = 0; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP); + if (!hdr) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || + nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + + genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid); + return; + + nla_put_failure: + if (hdr) + genlmsg_cancel(msg, hdr); + nlmsg_free(msg); + +} +EXPORT_SYMBOL(cfg80211_crit_proto_stopped); + /* initialisation/exit functions */ int nl80211_init(void) |