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nl80211: support sending TDLS commands/frames

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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>
This commit is contained in:
Arik Nemtsov 2011-09-28 14:12:50 +03:00 • committed by John W. Linville
parent a76011e2cb
commit 109086ce0b
3 changed files with 139 additions and 1 deletions
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42
include/linux/nl80211.h
View file

@ -506,6 +506,9 @@
* @NL80211_CMD_PMKSA_CANDIDATE: This is used as an event to inform userspace
* of PMKSA caching dandidates.
*
* @NL80211_CMD_TDLS_OPER: Perform a high-level TDLS command (e.g. link setup).
* @NL80211_CMD_TDLS_MGMT: Send a TDLS management frame.
*
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@ -632,6 +635,9 @@ enum nl80211_commands {
NL80211_CMD_PMKSA_CANDIDATE,
NL80211_CMD_TDLS_OPER,
NL80211_CMD_TDLS_MGMT,
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@ -1089,6 +1095,20 @@ enum nl80211_commands {
* This attribute is used with %NL80211_CMD_TRIGGER_SCAN and
* %NL80211_CMD_FRAME commands.
*
* @NL80211_ATTR_TDLS_ACTION: Low level TDLS action code (e.g. link setup
* request, link setup confirm, link teardown, etc.). Values are
* described in the TDLS (802.11z) specification.
* @NL80211_ATTR_TDLS_DIALOG_TOKEN: Non-zero token for uniquely identifying a
* TDLS conversation between two devices.
* @NL80211_ATTR_TDLS_OPERATION: High level TDLS operation; see
* &enum nl80211_tdls_operation, represented as a u8.
* @NL80211_ATTR_TDLS_SUPPORT: A flag indicating the device can operate
* as a TDLS peer sta.
* @NL80211_ATTR_TDLS_EXTERNAL_SETUP: The TDLS discovery/setup and teardown
* procedures should be performed by sending TDLS packets via
* %NL80211_CMD_TDLS_MGMT. Otherwise %NL80211_CMD_TDLS_OPER should be
* used for asking the driver to perform a TDLS operation.
*
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@ -1311,6 +1331,12 @@ enum nl80211_attrs {
NL80211_ATTR_TX_NO_CCK_RATE,
NL80211_ATTR_TDLS_ACTION,
NL80211_ATTR_TDLS_DIALOG_TOKEN,
NL80211_ATTR_TDLS_OPERATION,
NL80211_ATTR_TDLS_SUPPORT,
NL80211_ATTR_TDLS_EXTERNAL_SETUP,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@ -2604,4 +2630,20 @@ enum nl80211_pmksa_candidate_attr {
MAX_NL80211_PMKSA_CANDIDATE = NUM_NL80211_PMKSA_CANDIDATE - 1
};
/**
* enum nl80211_tdls_operation - values for %NL80211_ATTR_TDLS_OPERATION
* @NL80211_TDLS_DISCOVERY_REQ: Send a TDLS discovery request
* @NL80211_TDLS_SETUP: Setup TDLS link
* @NL80211_TDLS_TEARDOWN: Teardown a TDLS link which is already established
* @NL80211_TDLS_ENABLE_LINK: Enable TDLS link
* @NL80211_TDLS_DISABLE_LINK: Disable TDLS link
*/
enum nl80211_tdls_operation {
NL80211_TDLS_DISCOVERY_REQ,
NL80211_TDLS_SETUP,
NL80211_TDLS_TEARDOWN,
NL80211_TDLS_ENABLE_LINK,
NL80211_TDLS_DISABLE_LINK,
};
#endif /* __LINUX_NL80211_H */