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authorArik Nemtsov <arik@wizery.com>2011-09-28 14:12:50 +0300
committerJohn W. Linville <linville@tuxdriver.com>2011-09-30 15:57:05 -0400
commit109086ce0b0f94760bdb0e8e2566ff8a2d673639 (patch)
tree217a3d18f203fe1cf8652f9b33c4ade1f61594c2 /net/wireless
parenta76011e2cbb6915f60488477311e0f269cee6496 (diff)
downloadlinux-109086ce0b0f94760bdb0e8e2566ff8a2d673639.tar.bz2
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 <arik@wizery.com> Cc: Kalyan C Gaddam <chakkal@iit.edu> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c81
1 files changed, 80 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 3799623e7f46..25a37fc951e3 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 = {