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| author | Antonio Quartulli <antonio@open-mesh.com> | 2013-06-11 14:20:03 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-06-11 15:01:36 +0200 |
| commit | ea141b75ae29636b5c9e9d2e2e77b3dd1ab4c934 (patch) | |
| tree | a3cb688eece88443a72f5716f0375fb4eb603666 /net/wireless/nl80211.c | |
| parent | bfd634d01e02071404e3e36e3946728009ed023f (diff) | |
| download | lwn-ea141b75ae29636b5c9e9d2e2e77b3dd1ab4c934.tar.gz lwn-ea141b75ae29636b5c9e9d2e2e77b3dd1ab4c934.zip | |
nl80211: allow sending CMD_FRAME without specifying any frequency
Users may want to send a frame on the current channel
without specifying it.
This is particularly useful for the correct implementation
of the IBSS/RSN support in wpa_supplicant which requires to
receive and send AUTH frames.
Make mgmt_tx pass a NULL channel to the driver if none has
been specified by the user.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 7183410fcd41..398ce2c59686 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -7147,6 +7147,9 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) return -EOPNOTSUPP; switch (wdev->iftype) { + case NL80211_IFTYPE_P2P_DEVICE: + if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) + return -EINVAL; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_P2P_CLIENT: @@ -7154,7 +7157,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_P2P_GO: - case NL80211_IFTYPE_P2P_DEVICE: break; default: return -EOPNOTSUPP; @@ -7182,9 +7184,18 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]); - err = nl80211_parse_chandef(rdev, info, &chandef); - if (err) - return err; + /* get the channel if any has been specified, otherwise pass NULL to + * the driver. The latter will use the current one + */ + chandef.chan = NULL; + if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { + err = nl80211_parse_chandef(rdev, info, &chandef); + if (err) + return err; + } + + if (!chandef.chan && offchan) + return -EINVAL; if (!dont_wait_for_ack) { msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |