nl80211: export supported commands
This makes nl80211 export the supported commands (command groups)
per wiphy so userspace has an idea what it can do -- this will be
required reading for userspace when we introduce auth/assoc /or/
connect for older hardware that cannot separate auth and assoc.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index f33aa08..3700d92 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -349,6 +349,10 @@
* @NL80211_ATTR_REG_TYPE: indicates the type of the regulatory domain currently
* set. This can be one of the nl80211_reg_type (%NL80211_REGDOM_TYPE_*)
*
+ * @NL80211_ATTR_SUPPORTED_COMMANDS: wiphy attribute that specifies
+ * an array of command numbers (i.e. a mapping index to command number)
+ * that the driver for the given wiphy supports.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -426,6 +430,8 @@
NL80211_ATTR_REG_INITIATOR,
NL80211_ATTR_REG_TYPE,
+ NL80211_ATTR_SUPPORTED_COMMANDS,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ab9d8f1..58ee1b1 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -131,6 +131,7 @@
struct nlattr *nl_freqs, *nl_freq;
struct nlattr *nl_rates, *nl_rate;
struct nlattr *nl_modes;
+ struct nlattr *nl_cmds;
enum ieee80211_band band;
struct ieee80211_channel *chan;
struct ieee80211_rate *rate;
@@ -242,6 +243,32 @@
}
nla_nest_end(msg, nl_bands);
+ nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
+ if (!nl_cmds)
+ goto nla_put_failure;
+
+ i = 0;
+#define CMD(op, n) \
+ do { \
+ if (dev->ops->op) { \
+ i++; \
+ NLA_PUT_U32(msg, i, NL80211_CMD_ ## n); \
+ } \
+ } while (0)
+
+ CMD(add_virtual_intf, NEW_INTERFACE);
+ CMD(change_virtual_intf, SET_INTERFACE);
+ CMD(add_key, NEW_KEY);
+ CMD(add_beacon, NEW_BEACON);
+ CMD(add_station, NEW_STATION);
+ CMD(add_mpath, NEW_MPATH);
+ CMD(set_mesh_params, SET_MESH_PARAMS);
+ CMD(change_bss, SET_BSS);
+ CMD(set_mgmt_extra_ie, SET_MGMT_EXTRA_IE);
+
+#undef CMD
+ nla_nest_end(msg, nl_cmds);
+
return genlmsg_end(msg, hdr);
nla_put_failure: