diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ieee80211.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index e145af7448a3..98223b665456 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -4891,6 +4891,39 @@ static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data, fixed + prof->sta_info_len <= len; } +#define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID 0x000f +#define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE 0x0010 +#define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT 0x0020 +#define IEEE80211_MLE_STA_RECONF_CONTROL_DELETE_TIMER_PRESENT 0x0040 + +/** + * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link + * element sta profile size. + * @data: pointer to the sub element data + * @len: length of the containing sub element + */ +static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data, + size_t len) +{ + const struct ieee80211_mle_per_sta_profile *prof = (const void *)data; + u16 control; + u8 fixed = sizeof(*prof); + u8 info_len = 1; + + if (len < fixed) + return false; + + control = le16_to_cpu(prof->control); + + if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT) + info_len += ETH_ALEN; + if (control & IEEE80211_MLE_STA_RECONF_CONTROL_DELETE_TIMER_PRESENT) + info_len += 2; + + return prof->sta_info_len >= info_len && + fixed + prof->sta_info_len - 1 <= len; +} + #define for_each_mle_subelement(_elem, _data, _len) \ if (ieee80211_mle_size_ok(_data, _len)) \ for_each_element(_elem, \ |