nl80211: add testmode dump support
This adds dump support to testmode. The testmode
dump support in nl80211 requires using two of the
six cb->args, the rest can be used by the driver
to figure out where the dump position is at or to
store other data across invocations.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 0589f55..6cb2543 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1284,6 +1284,12 @@
* frame on another channel
*
* @testmode_cmd: run a test mode command
+ * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
+ * used by the function, but 0 and 1 must not be touched. Additionally,
+ * return error codes other than -ENOBUFS and -ENOENT will terminate the
+ * dump and return to userspace with an error, so be careful. If any data
+ * was passed in from userspace then the data/len arguments will be present
+ * and point to the data contained in %NL80211_ATTR_TESTDATA.
*
* @set_bitrate_mask: set the bitrate mask configuration
*
@@ -1433,6 +1439,9 @@
#ifdef CONFIG_NL80211_TESTMODE
int (*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
+ int (*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
+ struct netlink_callback *cb,
+ void *data, int len);
#endif
int (*set_bitrate_mask)(struct wiphy *wiphy,
@@ -2849,8 +2858,10 @@
void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);
#define CFG80211_TESTMODE_CMD(cmd) .testmode_cmd = (cmd),
+#define CFG80211_TESTMODE_DUMP(cmd) .testmode_dump = (cmd),
#else
#define CFG80211_TESTMODE_CMD(cmd)
+#define CFG80211_TESTMODE_DUMP(cmd)
#endif
/**