diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2014-03-24 17:57:27 +0100 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:32:23 +0200 |
| commit | b9ee3975365c18fb009abcd739b1b77078821a03 (patch) | |
| tree | 3f76f3661ee9b6c88ee2080b717a7b4334c3cd62 /include/uapi/linux | |
| parent | 44aafa3ee4d56138aa5adf8566ab34ce0c0e0d5a (diff) | |
BACKPORT: cfg80211: allow userspace to take ownership of interfaces
(cherry pick from commit 78f22b6a3a9254460d23060530b48ae02a9394e3)
When dynamically creating interfaces from userspace, e.g. for P2P usage,
such interfaces are usually owned by the process that created them, i.e.
wpa_supplicant. Should wpa_supplicant crash, such interfaces will often
cease operating properly and cause problems on restarting the process.
To avoid this problem, introduce an ownership concept for interfaces. If
an interface is owned by a netlink socket, then it will be destroyed if
the netlink socket is closed for any reason, including if the process it
belongs to crashed. This gives us a race-free way to get rid of any such
interfaces.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Bug: 25561044
Change-Id: I5a9c8883c5c204ac5d2917ab8492b44daf4b71e7
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/nl80211.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 174715b12..d69ec9ac1 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1499,6 +1499,27 @@ enum nl80211_commands { * @NL80211_ATTR_VENDOR_EVENTS: used for event list advertising in the wiphy * info, containing a nested array of possible events * + * @NL80211_ATTR_QOS_MAP: IP DSCP mapping for Interworking QoS mapping. This + * data is in the format defined for the payload of the QoS Map Set element + * in IEEE Std 802.11-2012, 8.4.2.97. + * + * @NL80211_ATTR_MAC_HINT: MAC address recommendation as initial BSS + * @NL80211_ATTR_WIPHY_FREQ_HINT: frequency of the recommended initial BSS + * + * @NL80211_ATTR_MAX_AP_ASSOC_STA: Device attribute that indicates how many + * associated stations are supported in AP mode (including P2P GO); u32. + * Since drivers may not have a fixed limit on the maximum number (e.g., + * other concurrent operations may affect this), drivers are allowed to + * advertise values that cannot always be met. In such cases, an attempt + * to add a new station entry with @NL80211_CMD_NEW_STATION may fail. + * + * @NL80211_ATTR_TDLS_PEER_CAPABILITY: flags for TDLS peer capabilities, u32. + * As specified in the &enum nl80211_tdls_peer_capability. + * + * @NL80211_ATTR_IFACE_SOCKET_OWNER: flag attribute, if set during interface + * creation then the new interface will be owned by the netlink socket + * that created it and will be destroyed when the socket is closed + * * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use */ @@ -1825,6 +1846,17 @@ enum nl80211_attrs { NL80211_ATTR_VENDOR_EVENTS, + NL80211_ATTR_QOS_MAP, + + NL80211_ATTR_MAC_HINT, + NL80211_ATTR_WIPHY_FREQ_HINT, + + NL80211_ATTR_MAX_AP_ASSOC_STA, + + NL80211_ATTR_TDLS_PEER_CAPABILITY, + + NL80211_ATTR_IFACE_SOCKET_OWNER, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, |