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Diffstat (limited to 'include/linux/ieee80211.h')
-rw-r--r--include/linux/ieee80211.h106
1 files changed, 85 insertions, 21 deletions
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 55e6f4ad0ca6..80d6308dea06 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -310,9 +310,11 @@ static inline u16 ieee80211_sn_sub(u16 sn1, u16 sn2)
struct ieee80211_hdr {
__le16 frame_control;
__le16 duration_id;
- u8 addr1[ETH_ALEN];
- u8 addr2[ETH_ALEN];
- u8 addr3[ETH_ALEN];
+ struct_group(addrs,
+ u8 addr1[ETH_ALEN];
+ u8 addr2[ETH_ALEN];
+ u8 addr3[ETH_ALEN];
+ );
__le16 seq_ctrl;
u8 addr4[ETH_ALEN];
} __packed __aligned(2);
@@ -336,6 +338,17 @@ struct ieee80211_qos_hdr {
__le16 qos_ctrl;
} __packed __aligned(2);
+struct ieee80211_qos_hdr_4addr {
+ __le16 frame_control;
+ __le16 duration_id;
+ u8 addr1[ETH_ALEN];
+ u8 addr2[ETH_ALEN];
+ u8 addr3[ETH_ALEN];
+ __le16 seq_ctrl;
+ u8 addr4[ETH_ALEN];
+ __le16 qos_ctrl;
+} __packed __aligned(2);
+
struct ieee80211_trigger {
__le16 frame_control;
__le16 duration;
@@ -2886,7 +2899,8 @@ ieee80211_he_spr_size(const u8 *he_spr_ie)
/* Calculate 802.11be EHT capabilities IE Tx/Rx EHT MCS NSS Support Field size */
static inline u8
ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
- const struct ieee80211_eht_cap_elem_fixed *eht_cap)
+ const struct ieee80211_eht_cap_elem_fixed *eht_cap,
+ bool from_ap)
{
u8 count = 0;
@@ -2907,7 +2921,10 @@ ieee80211_eht_mcs_nss_size(const struct ieee80211_he_cap_elem *he_cap,
if (eht_cap->phy_cap_info[0] & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ)
count += 3;
- return count ? count : 4;
+ if (count)
+ return count;
+
+ return from_ap ? 3 : 4;
}
/* 802.11be EHT PPE Thresholds */
@@ -2943,7 +2960,8 @@ ieee80211_eht_ppe_size(u16 ppe_thres_hdr, const u8 *phy_cap_info)
}
static inline bool
-ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len)
+ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len,
+ bool from_ap)
{
const struct ieee80211_eht_cap_elem_fixed *elem = (const void *)data;
u8 needed = sizeof(struct ieee80211_eht_cap_elem_fixed);
@@ -2952,7 +2970,8 @@ ieee80211_eht_capa_size_ok(const u8 *he_capa, const u8 *data, u8 len)
return false;
needed += ieee80211_eht_mcs_nss_size((const void *)he_capa,
- (const void *)data);
+ (const void *)data,
+ from_ap);
if (len < needed)
return false;
@@ -4052,16 +4071,21 @@ struct ieee80211_he_6ghz_capa {
* @hdr: the frame
*
* The qos ctrl bytes come after the frame_control, duration, seq_num
- * and 3 or 4 addresses of length ETH_ALEN.
- * 3 addr: 2 + 2 + 2 + 3*6 = 24
- * 4 addr: 2 + 2 + 2 + 4*6 = 30
+ * and 3 or 4 addresses of length ETH_ALEN. Checks frame_control to choose
+ * between struct ieee80211_qos_hdr_4addr and struct ieee80211_qos_hdr.
*/
static inline u8 *ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
{
- if (ieee80211_has_a4(hdr->frame_control))
- return (u8 *)hdr + 30;
+ union {
+ struct ieee80211_qos_hdr addr3;
+ struct ieee80211_qos_hdr_4addr addr4;
+ } *qos;
+
+ qos = (void *)hdr;
+ if (ieee80211_has_a4(qos->addr3.frame_control))
+ return (u8 *)&qos->addr4.qos_ctrl;
else
- return (u8 *)hdr + 24;
+ return (u8 *)&qos->addr3.qos_ctrl;
}
/**
@@ -4565,18 +4589,17 @@ static inline u8 ieee80211_mle_common_size(const u8 *data)
switch (u16_get_bits(control, IEEE80211_ML_CONTROL_TYPE)) {
case IEEE80211_ML_CONTROL_TYPE_BASIC:
- common += sizeof(struct ieee80211_mle_basic_common_info);
- break;
case IEEE80211_ML_CONTROL_TYPE_PREQ:
- common += sizeof(struct ieee80211_mle_preq_common_info);
+ case IEEE80211_ML_CONTROL_TYPE_TDLS:
+ /*
+ * The length is the first octet pointed by mle->variable so no
+ * need to add anything
+ */
break;
case IEEE80211_ML_CONTROL_TYPE_RECONF:
if (control & IEEE80211_MLC_RECONF_PRES_MLD_MAC_ADDR)
common += ETH_ALEN;
return common;
- case IEEE80211_ML_CONTROL_TYPE_TDLS:
- common += sizeof(struct ieee80211_mle_tdls_common_info);
- break;
case IEEE80211_ML_CONTROL_TYPE_PRIO_ACCESS:
if (control & IEEE80211_MLC_PRIO_ACCESS_PRES_AP_MLD_MAC_ADDR)
common += ETH_ALEN;
@@ -4586,7 +4609,7 @@ static inline u8 ieee80211_mle_common_size(const u8 *data)
return 0;
}
- return common + mle->variable[0];
+ return sizeof(*mle) + common + mle->variable[0];
}
/**
@@ -4594,7 +4617,7 @@ static inline u8 ieee80211_mle_common_size(const u8 *data)
* @data: pointer to the element data
* @len: length of the containing element
*/
-static inline bool ieee80211_mle_size_ok(const u8 *data, u8 len)
+static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
{
const struct ieee80211_multi_link_elem *mle = (const void *)data;
u8 fixed = sizeof(*mle);
@@ -4659,6 +4682,7 @@ static inline bool ieee80211_mle_size_ok(const u8 *data, u8 len)
enum ieee80211_mle_subelems {
IEEE80211_MLE_SUBELEM_PER_STA_PROFILE = 0,
+ IEEE80211_MLE_SUBELEM_FRAGMENT = 254,
};
#define IEEE80211_MLE_STA_CONTROL_LINK_ID 0x000f
@@ -4677,6 +4701,46 @@ struct ieee80211_mle_per_sta_profile {
u8 variable[];
} __packed;
+/**
+ * ieee80211_mle_sta_prof_size_ok - validate 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_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_CONTROL_STA_MAC_ADDR_PRESENT)
+ info_len += 6;
+ if (control & IEEE80211_MLE_STA_CONTROL_BEACON_INT_PRESENT)
+ info_len += 2;
+ if (control & IEEE80211_MLE_STA_CONTROL_TSF_OFFS_PRESENT)
+ info_len += 8;
+ if (control & IEEE80211_MLE_STA_CONTROL_DTIM_INFO_PRESENT)
+ info_len += 2;
+ if (control & IEEE80211_MLE_STA_CONTROL_BSS_PARAM_CHANGE_CNT_PRESENT)
+ info_len += 1;
+
+ if (control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE &&
+ control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE) {
+ if (control & IEEE80211_MLE_STA_CONTROL_NSTR_BITMAP_SIZE)
+ info_len += 2;
+ else
+ info_len += 1;
+ }
+
+ return prof->sta_info_len >= info_len &&
+ fixed + prof->sta_info_len <= len;
+}
+
#define for_each_mle_subelement(_elem, _data, _len) \
if (ieee80211_mle_size_ok(_data, _len)) \
for_each_element(_elem, \
generated by cgit v1.2.3 (git 2.39.0) at 2025-12-11 21:13:47 +0300