diff options
Diffstat (limited to 'net/wireless/scan.c')
-rw-r--r-- | net/wireless/scan.c | 38 |
1 files changed, 20 insertions, 18 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 06b0231ee5e3..978cac3414b5 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c | |||
@@ -143,9 +143,9 @@ void cfg80211_bss_expire(struct cfg80211_registered_device *dev) | |||
143 | dev->bss_generation++; | 143 | dev->bss_generation++; |
144 | } | 144 | } |
145 | 145 | ||
146 | static u8 *find_ie(u8 num, u8 *ies, int len) | 146 | const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len) |
147 | { | 147 | { |
148 | while (len > 2 && ies[0] != num) { | 148 | while (len > 2 && ies[0] != eid) { |
149 | len -= ies[1] + 2; | 149 | len -= ies[1] + 2; |
150 | ies += ies[1] + 2; | 150 | ies += ies[1] + 2; |
151 | } | 151 | } |
@@ -155,11 +155,12 @@ static u8 *find_ie(u8 num, u8 *ies, int len) | |||
155 | return NULL; | 155 | return NULL; |
156 | return ies; | 156 | return ies; |
157 | } | 157 | } |
158 | EXPORT_SYMBOL(cfg80211_find_ie); | ||
158 | 159 | ||
159 | static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2) | 160 | static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2) |
160 | { | 161 | { |
161 | const u8 *ie1 = find_ie(num, ies1, len1); | 162 | const u8 *ie1 = cfg80211_find_ie(num, ies1, len1); |
162 | const u8 *ie2 = find_ie(num, ies2, len2); | 163 | const u8 *ie2 = cfg80211_find_ie(num, ies2, len2); |
163 | int r; | 164 | int r; |
164 | 165 | ||
165 | if (!ie1 && !ie2) | 166 | if (!ie1 && !ie2) |
@@ -185,9 +186,9 @@ static bool is_bss(struct cfg80211_bss *a, | |||
185 | if (!ssid) | 186 | if (!ssid) |
186 | return true; | 187 | return true; |
187 | 188 | ||
188 | ssidie = find_ie(WLAN_EID_SSID, | 189 | ssidie = cfg80211_find_ie(WLAN_EID_SSID, |
189 | a->information_elements, | 190 | a->information_elements, |
190 | a->len_information_elements); | 191 | a->len_information_elements); |
191 | if (!ssidie) | 192 | if (!ssidie) |
192 | return false; | 193 | return false; |
193 | if (ssidie[1] != ssid_len) | 194 | if (ssidie[1] != ssid_len) |
@@ -204,9 +205,9 @@ static bool is_mesh(struct cfg80211_bss *a, | |||
204 | if (!is_zero_ether_addr(a->bssid)) | 205 | if (!is_zero_ether_addr(a->bssid)) |
205 | return false; | 206 | return false; |
206 | 207 | ||
207 | ie = find_ie(WLAN_EID_MESH_ID, | 208 | ie = cfg80211_find_ie(WLAN_EID_MESH_ID, |
208 | a->information_elements, | 209 | a->information_elements, |
209 | a->len_information_elements); | 210 | a->len_information_elements); |
210 | if (!ie) | 211 | if (!ie) |
211 | return false; | 212 | return false; |
212 | if (ie[1] != meshidlen) | 213 | if (ie[1] != meshidlen) |
@@ -214,9 +215,9 @@ static bool is_mesh(struct cfg80211_bss *a, | |||
214 | if (memcmp(ie + 2, meshid, meshidlen)) | 215 | if (memcmp(ie + 2, meshid, meshidlen)) |
215 | return false; | 216 | return false; |
216 | 217 | ||
217 | ie = find_ie(WLAN_EID_MESH_CONFIG, | 218 | ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG, |
218 | a->information_elements, | 219 | a->information_elements, |
219 | a->len_information_elements); | 220 | a->len_information_elements); |
220 | if (!ie) | 221 | if (!ie) |
221 | return false; | 222 | return false; |
222 | if (ie[1] != sizeof(struct ieee80211_meshconf_ie)) | 223 | if (ie[1] != sizeof(struct ieee80211_meshconf_ie)) |
@@ -395,11 +396,12 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, | |||
395 | 396 | ||
396 | if (is_zero_ether_addr(res->pub.bssid)) { | 397 | if (is_zero_ether_addr(res->pub.bssid)) { |
397 | /* must be mesh, verify */ | 398 | /* must be mesh, verify */ |
398 | meshid = find_ie(WLAN_EID_MESH_ID, res->pub.information_elements, | 399 | meshid = cfg80211_find_ie(WLAN_EID_MESH_ID, |
399 | res->pub.len_information_elements); | 400 | res->pub.information_elements, |
400 | meshcfg = find_ie(WLAN_EID_MESH_CONFIG, | 401 | res->pub.len_information_elements); |
401 | res->pub.information_elements, | 402 | meshcfg = cfg80211_find_ie(WLAN_EID_MESH_CONFIG, |
402 | res->pub.len_information_elements); | 403 | res->pub.information_elements, |
404 | res->pub.len_information_elements); | ||
403 | if (!meshid || !meshcfg || | 405 | if (!meshid || !meshcfg || |
404 | meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) { | 406 | meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) { |
405 | /* bogus mesh */ | 407 | /* bogus mesh */ |