blob: 4592c341277ed4b7d6d53859f06da0b3f8e57fcf [file] [log] [blame]
developer29c4d2d2022-12-26 19:41:22 +08001--- a/src/common/wpa_common.c
2+++ b/src/common/wpa_common.c
developere35b8e42023-10-16 11:04:00 +08003@@ -2841,6 +2841,31 @@ u32 wpa_akm_to_suite(int akm)
developer29c4d2d2022-12-26 19:41:22 +08004 }
5
6
7+static void wpa_fixup_wpa_ie_rsn(u8 *assoc_ie, const u8 *wpa_msg_ie,
8+ size_t rsn_ie_len)
9+{
10+ int pos, count;
11+
12+ pos = sizeof(struct rsn_ie_hdr) + RSN_SELECTOR_LEN;
13+ if (rsn_ie_len < pos + 2)
14+ return;
15+
16+ count = WPA_GET_LE16(wpa_msg_ie + pos);
17+ pos += 2 + count * RSN_SELECTOR_LEN;
18+ if (rsn_ie_len < pos + 2)
19+ return;
20+
21+ count = WPA_GET_LE16(wpa_msg_ie + pos);
22+ pos += 2 + count * RSN_SELECTOR_LEN;
23+ if (rsn_ie_len < pos + 2)
24+ return;
25+
26+ if (!assoc_ie[pos] && !assoc_ie[pos + 1] &&
27+ (wpa_msg_ie[pos] || wpa_msg_ie[pos + 1]))
28+ memcpy(&assoc_ie[pos], &wpa_msg_ie[pos], 2);
29+}
30+
31+
32 int wpa_compare_rsn_ie(int ft_initial_assoc,
33 const u8 *ie1, size_t ie1len,
34 const u8 *ie2, size_t ie2len)
developere35b8e42023-10-16 11:04:00 +080035@@ -2848,8 +2873,19 @@ int wpa_compare_rsn_ie(int ft_initial_as
developer29c4d2d2022-12-26 19:41:22 +080036 if (ie1 == NULL || ie2 == NULL)
37 return -1;
38
39- if (ie1len == ie2len && os_memcmp(ie1, ie2, ie1len) == 0)
40- return 0; /* identical IEs */
41+ if (ie1len == ie2len) {
42+ u8 *ie_tmp;
43+
44+ if (os_memcmp(ie1, ie2, ie1len) == 0)
45+ return 0; /* identical IEs */
46+
47+ ie_tmp = alloca(ie1len);
48+ memcpy(ie_tmp, ie1, ie1len);
49+ wpa_fixup_wpa_ie_rsn(ie_tmp, ie2, ie1len);
50+
51+ if (os_memcmp(ie_tmp, ie2, ie1len) == 0)
52+ return 0; /* only mismatch in RSN capabilties */
53+ }
54
55 #ifdef CONFIG_IEEE80211R
56 if (ft_initial_assoc) {