From 109086ce0b0f94760bdb0e8e2566ff8a2d673639 Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Wed, 28 Sep 2011 14:12:50 +0300 Subject: nl80211: support sending TDLS commands/frames Add support for sending high-level TDLS commands and TDLS frames via NL80211_CMD_TDLS_OPER and NL80211_CMD_TDLS_MGMT, respectively. Add appropriate cfg80211 callbacks for lower level drivers. Add wiphy capability flags for TDLS support and advertise them via nl80211. Signed-off-by: Arik Nemtsov Cc: Kalyan C Gaddam Signed-off-by: John W. Linville --- net/wireless/nl80211.c | 81 +++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 80 insertions(+), 1 deletion(-) (limited to 'net/wireless') diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3799623e7f4..25a37fc951e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -192,6 +192,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG }, [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED }, [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG }, + [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 }, + [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 }, + [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, + [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, + [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, }; /* policy for the key attributes */ @@ -732,9 +737,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_MESH_AUTH); if (dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_AP_UAPSD); - if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) NLA_PUT_FLAG(msg, NL80211_ATTR_ROAM_SUPPORT); + if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) + NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_SUPPORT); + if (dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) + NLA_PUT_FLAG(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP); NLA_PUT(msg, NL80211_ATTR_CIPHER_SUITES, sizeof(u32) * dev->wiphy.n_cipher_suites, @@ -877,6 +885,10 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, } CMD(set_channel, SET_CHANNEL); CMD(set_wds_peer, SET_WDS_PEER); + if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { + CMD(tdls_mgmt, TDLS_MGMT); + CMD(tdls_oper, TDLS_OPER); + } if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) CMD(sched_scan_start, START_SCHED_SCAN); @@ -4966,6 +4978,57 @@ static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info) return rdev->ops->flush_pmksa(&rdev->wiphy, dev); } +static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + u8 action_code, dialog_token; + u16 status_code; + u8 *peer; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || + !rdev->ops->tdls_mgmt) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_TDLS_ACTION] || + !info->attrs[NL80211_ATTR_STATUS_CODE] || + !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] || + !info->attrs[NL80211_ATTR_IE] || + !info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + peer = nla_data(info->attrs[NL80211_ATTR_MAC]); + action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); + status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); + dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); + + return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code, + dialog_token, status_code, + nla_data(info->attrs[NL80211_ATTR_IE]), + nla_len(info->attrs[NL80211_ATTR_IE])); +} + +static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + enum nl80211_tdls_operation operation; + u8 *peer; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || + !rdev->ops->tdls_oper) + return -EOPNOTSUPP; + + if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] || + !info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]); + peer = nla_data(info->attrs[NL80211_ATTR_MAC]); + + return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation); +} + static int nl80211_remain_on_channel(struct sk_buff *skb, struct genl_info *info) { @@ -6281,6 +6344,22 @@ static struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_TDLS_MGMT, + .doit = nl80211_tdls_mgmt, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_TDLS_OPER, + .doit = nl80211_tdls_oper, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, }; static struct genl_multicast_group nl80211_mlme_mcgrp = { -- cgit v1.2.3