diff options
| author | Ilan Peer <ilan.peer@intel.com> | 2025-01-02 16:20:01 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-01-13 15:34:09 +0100 |
| commit | 24711d60f8492a30622e419cee643d59264ea939 (patch) | |
| tree | 03d3c48630d309f7731381b0b10e188fc66abf5f /net/mac80211/parse.c | |
| parent | 19aa842dcbb5860509b7e1b7745dbae0b791f6c4 (diff) | |
wifi: mac80211: Support parsing EPCS ML element
Add support for parsing an ML element of type EPCS priority
access, which can optionally be included in EHT protected action
frames used to configure EPCS.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250102161730.5afdf65cff46.I0ffa30b40fbad47bc5b608b5fd46047a8c44e904@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/parse.c')
| -rw-r--r-- | net/mac80211/parse.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/net/mac80211/parse.c b/net/mac80211/parse.c index 279c5143b335..cd318c1c67be 100644 --- a/net/mac80211/parse.c +++ b/net/mac80211/parse.c @@ -44,6 +44,9 @@ struct ieee80211_elems_parse { /* The reconfiguration Multi-Link element in the original elements */ const struct element *ml_reconf_elem; + /* The EPCS Multi-Link element in the original elements */ + const struct element *ml_epcs_elem; + /* * scratch buffer that can be used for various element parsing related * tasks, e.g., element de-fragmentation etc. @@ -159,6 +162,9 @@ ieee80211_parse_extension_element(u32 *crc, case IEEE80211_ML_CONTROL_TYPE_RECONF: elems_parse->ml_reconf_elem = elem; break; + case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS: + elems_parse->ml_epcs_elem = elem; + break; default: break; } @@ -943,6 +949,27 @@ ieee80211_mle_defrag_reconf(struct ieee80211_elems_parse *elems_parse) elems_parse->scratch_pos += ml_len; } +static void +ieee80211_mle_defrag_epcs(struct ieee80211_elems_parse *elems_parse) +{ + struct ieee802_11_elems *elems = &elems_parse->elems; + ssize_t ml_len; + + ml_len = cfg80211_defragment_element(elems_parse->ml_epcs_elem, + elems->ie_start, + elems->total_len, + elems_parse->scratch_pos, + elems_parse->scratch + + elems_parse->scratch_len - + elems_parse->scratch_pos, + WLAN_EID_FRAGMENT); + if (ml_len < 0) + return; + elems->ml_epcs = (void *)elems_parse->scratch_pos; + elems->ml_epcs_len = ml_len; + elems_parse->scratch_pos += ml_len; +} + struct ieee802_11_elems * ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) { @@ -1001,6 +1028,8 @@ ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) ieee80211_mle_defrag_reconf(elems_parse); + ieee80211_mle_defrag_epcs(elems_parse); + if (elems->tim && !elems->parse_error) { const struct ieee80211_tim_ie *tim_ie = elems->tim; |