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nl80211: add testmode dump support

Browse source 
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>
This commit is contained in:
Wey-Yi Guy 2011-05-20 09:05:54 -07:00 • committed by John W. Linville
commit 71063f0e89
4 changed files with 117 additions and 0 deletions
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11
include/net/cfg80211.h
View file

@ -1284,6 +1284,12 @@ struct cfg80211_wowlan {
* 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 @@ struct cfg80211_ops {
#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 @@ struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
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
/**

4
include/net/mac80211.h
View file

@ -1816,6 +1816,7 @@ enum ieee80211_ampdu_mlme_action {
*
* @testmode_cmd: Implement a cfg80211 test mode command.
* The callback can sleep.
* @testmode_dump: Implement a cfg80211 test mode dump. The callback can sleep.
*
* @flush: Flush all pending frames from the hardware queue, making sure
* that the hardware queues are empty. If the parameter @drop is set
@ -1936,6 +1937,9 @@ struct ieee80211_ops {
void (*set_coverage_class)(struct ieee80211_hw *hw, u8 coverage_class);
#ifdef CONFIG_NL80211_TESTMODE
int (*testmode_cmd)(struct ieee80211_hw *hw, void *data, int len);
int (*testmode_dump)(struct ieee80211_hw *hw, struct sk_buff *skb,
struct netlink_callback *cb,
void *data, int len);
#endif
void (*flush)(struct ieee80211_hw *hw, bool drop);
void (*channel_switch)(struct ieee80211_hw *hw,