extern const unsigned char rfc1042_header[6];
extern const unsigned char bridge_tunnel_header[6];
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- u8 *ie_start;
- size_t total_len;
-
- /* pointers to IEs */
- u8 *ssid;
- u8 *supp_rates;
- u8 *fh_params;
- u8 *ds_params;
- u8 *cf_params;
- struct ieee80211_tim_ie *tim;
- u8 *ibss_params;
- u8 *challenge;
- u8 *wpa;
- u8 *rsn;
- u8 *erp_info;
- u8 *ext_supp_rates;
- u8 *wmm_info;
- u8 *wmm_param;
- struct ieee80211_ht_cap *ht_cap_elem;
- struct ieee80211_ht_info *ht_info_elem;
- struct ieee80211_meshconf_ie *mesh_config;
- u8 *mesh_id;
- u8 *peering;
- u8 *preq;
- u8 *prep;
- u8 *perr;
- struct ieee80211_rann_ie *rann;
- u8 *ch_switch_elem;
- u8 *country_elem;
- u8 *pwr_constr_elem;
- u8 *quiet_elem; /* first quite element */
- u8 *timeout_int;
-
- /* length of them, respectively */
- u8 ssid_len;
- u8 supp_rates_len;
- u8 fh_params_len;
- u8 ds_params_len;
- u8 cf_params_len;
- u8 tim_len;
- u8 ibss_params_len;
- u8 challenge_len;
- u8 wpa_len;
- u8 rsn_len;
- u8 erp_info_len;
- u8 ext_supp_rates_len;
- u8 wmm_info_len;
- u8 wmm_param_len;
- u8 mesh_id_len;
- u8 peering_len;
- u8 preq_len;
- u8 prep_len;
- u8 perr_len;
- u8 ch_switch_elem_len;
- u8 country_elem_len;
- u8 pwr_constr_elem_len;
- u8 quiet_elem_len;
- u8 num_of_quiet_elem; /* can be more the one */
- u8 timeout_int_len;
-};
-
/**
* ieee80211_get_hdrlen_from_skb - get header length from data
*
u16 tid;
};
+/* Parsed Information Elements */
+struct ieee802_11_elems {
+ u8 *ie_start;
+ size_t total_len;
+
+ /* pointers to IEs */
+ u8 *ssid;
+ u8 *supp_rates;
+ u8 *fh_params;
+ u8 *ds_params;
+ u8 *cf_params;
+ struct ieee80211_tim_ie *tim;
+ u8 *ibss_params;
+ u8 *challenge;
+ u8 *wpa;
+ u8 *rsn;
+ u8 *erp_info;
+ u8 *ext_supp_rates;
+ u8 *wmm_info;
+ u8 *wmm_param;
+ struct ieee80211_ht_cap *ht_cap_elem;
+ struct ieee80211_ht_info *ht_info_elem;
+ struct ieee80211_meshconf_ie *mesh_config;
+ u8 *mesh_id;
+ u8 *peering;
+ u8 *preq;
+ u8 *prep;
+ u8 *perr;
+ struct ieee80211_rann_ie *rann;
+ u8 *ch_switch_elem;
+ u8 *country_elem;
+ u8 *pwr_constr_elem;
+ u8 *quiet_elem; /* first quite element */
+ u8 *timeout_int;
+
+ /* length of them, respectively */
+ u8 ssid_len;
+ u8 supp_rates_len;
+ u8 fh_params_len;
+ u8 ds_params_len;
+ u8 cf_params_len;
+ u8 tim_len;
+ u8 ibss_params_len;
+ u8 challenge_len;
+ u8 wpa_len;
+ u8 rsn_len;
+ u8 erp_info_len;
+ u8 ext_supp_rates_len;
+ u8 wmm_info_len;
+ u8 wmm_param_len;
+ u8 mesh_id_len;
+ u8 peering_len;
+ u8 preq_len;
+ u8 prep_len;
+ u8 perr_len;
+ u8 ch_switch_elem_len;
+ u8 country_elem_len;
+ u8 pwr_constr_elem_len;
+ u8 quiet_elem_len;
+ u8 num_of_quiet_elem; /* can be more the one */
+ u8 timeout_int_len;
+};
+
static inline struct ieee80211_local *hw_to_local(
struct ieee80211_hw *hw)
{
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/bitmap.h>
+#include <linux/crc32.h>
#include <net/net_namespace.h>
#include <net/cfg80211.h>
#include <net/rtnetlink.h>
}
EXPORT_SYMBOL(ieee80211_queue_delayed_work);
+u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
+ struct ieee802_11_elems *elems,
+ u64 filter, u32 crc)
+{
+ size_t left = len;
+ u8 *pos = start;
+ bool calc_crc = filter != 0;
+
+ memset(elems, 0, sizeof(*elems));
+ elems->ie_start = start;
+ elems->total_len = len;
+
+ while (left >= 2) {
+ u8 id, elen;
+
+ id = *pos++;
+ elen = *pos++;
+ left -= 2;
+
+ if (elen > left)
+ break;
+
+ if (calc_crc && id < 64 && (filter & (1ULL << id)))
+ crc = crc32_be(crc, pos - 2, elen + 2);
+
+ switch (id) {
+ case WLAN_EID_SSID:
+ elems->ssid = pos;
+ elems->ssid_len = elen;
+ break;
+ case WLAN_EID_SUPP_RATES:
+ elems->supp_rates = pos;
+ elems->supp_rates_len = elen;
+ break;
+ case WLAN_EID_FH_PARAMS:
+ elems->fh_params = pos;
+ elems->fh_params_len = elen;
+ break;
+ case WLAN_EID_DS_PARAMS:
+ elems->ds_params = pos;
+ elems->ds_params_len = elen;
+ break;
+ case WLAN_EID_CF_PARAMS:
+ elems->cf_params = pos;
+ elems->cf_params_len = elen;
+ break;
+ case WLAN_EID_TIM:
+ if (elen >= sizeof(struct ieee80211_tim_ie)) {
+ elems->tim = (void *)pos;
+ elems->tim_len = elen;
+ }
+ break;
+ case WLAN_EID_IBSS_PARAMS:
+ elems->ibss_params = pos;
+ elems->ibss_params_len = elen;
+ break;
+ case WLAN_EID_CHALLENGE:
+ elems->challenge = pos;
+ elems->challenge_len = elen;
+ break;
+ case WLAN_EID_VENDOR_SPECIFIC:
+ if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
+ pos[2] == 0xf2) {
+ /* Microsoft OUI (00:50:F2) */
+
+ if (calc_crc)
+ crc = crc32_be(crc, pos - 2, elen + 2);
+
+ if (pos[3] == 1) {
+ /* OUI Type 1 - WPA IE */
+ elems->wpa = pos;
+ elems->wpa_len = elen;
+ } else if (elen >= 5 && pos[3] == 2) {
+ /* OUI Type 2 - WMM IE */
+ if (pos[4] == 0) {
+ elems->wmm_info = pos;
+ elems->wmm_info_len = elen;
+ } else if (pos[4] == 1) {
+ elems->wmm_param = pos;
+ elems->wmm_param_len = elen;
+ }
+ }
+ }
+ break;
+ case WLAN_EID_RSN:
+ elems->rsn = pos;
+ elems->rsn_len = elen;
+ break;
+ case WLAN_EID_ERP_INFO:
+ elems->erp_info = pos;
+ elems->erp_info_len = elen;
+ break;
+ case WLAN_EID_EXT_SUPP_RATES:
+ elems->ext_supp_rates = pos;
+ elems->ext_supp_rates_len = elen;
+ break;
+ case WLAN_EID_HT_CAPABILITY:
+ if (elen >= sizeof(struct ieee80211_ht_cap))
+ elems->ht_cap_elem = (void *)pos;
+ break;
+ case WLAN_EID_HT_INFORMATION:
+ if (elen >= sizeof(struct ieee80211_ht_info))
+ elems->ht_info_elem = (void *)pos;
+ break;
+ case WLAN_EID_MESH_ID:
+ elems->mesh_id = pos;
+ elems->mesh_id_len = elen;
+ break;
+ case WLAN_EID_MESH_CONFIG:
+ if (elen >= sizeof(struct ieee80211_meshconf_ie))
+ elems->mesh_config = (void *)pos;
+ break;
+ case WLAN_EID_PEER_MGMT:
+ elems->peering = pos;
+ elems->peering_len = elen;
+ break;
+ case WLAN_EID_PREQ:
+ elems->preq = pos;
+ elems->preq_len = elen;
+ break;
+ case WLAN_EID_PREP:
+ elems->prep = pos;
+ elems->prep_len = elen;
+ break;
+ case WLAN_EID_PERR:
+ elems->perr = pos;
+ elems->perr_len = elen;
+ break;
+ case WLAN_EID_RANN:
+ if (elen >= sizeof(struct ieee80211_rann_ie))
+ elems->rann = (void *)pos;
+ break;
+ case WLAN_EID_CHANNEL_SWITCH:
+ elems->ch_switch_elem = pos;
+ elems->ch_switch_elem_len = elen;
+ break;
+ case WLAN_EID_QUIET:
+ if (!elems->quiet_elem) {
+ elems->quiet_elem = pos;
+ elems->quiet_elem_len = elen;
+ }
+ elems->num_of_quiet_elem++;
+ break;
+ case WLAN_EID_COUNTRY:
+ elems->country_elem = pos;
+ elems->country_elem_len = elen;
+ break;
+ case WLAN_EID_PWR_CONSTRAINT:
+ elems->pwr_constr_elem = pos;
+ elems->pwr_constr_elem_len = elen;
+ break;
+ case WLAN_EID_TIMEOUT_INTERVAL:
+ elems->timeout_int = pos;
+ elems->timeout_int_len = elen;
+ break;
+ default:
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+
+ return crc;
+}
+
void ieee802_11_parse_elems(u8 *start, size_t len,
struct ieee802_11_elems *elems)
{
#include <linux/bitops.h>
#include <linux/etherdevice.h>
#include <linux/slab.h>
-#include <linux/crc32.h>
#include <net/cfg80211.h>
#include <net/ip.h>
#include "core.h"
return 0;
}
-
-u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
- struct ieee802_11_elems *elems,
- u64 filter, u32 crc)
-{
- size_t left = len;
- u8 *pos = start;
- bool calc_crc = filter != 0;
-
- memset(elems, 0, sizeof(*elems));
- elems->ie_start = start;
- elems->total_len = len;
-
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left)
- break;
-
- if (calc_crc && id < 64 && (filter & (1ULL << id)))
- crc = crc32_be(crc, pos - 2, elen + 2);
-
- switch (id) {
- case WLAN_EID_SSID:
- elems->ssid = pos;
- elems->ssid_len = elen;
- break;
- case WLAN_EID_SUPP_RATES:
- elems->supp_rates = pos;
- elems->supp_rates_len = elen;
- break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
- case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
- break;
- case WLAN_EID_TIM:
- if (elen >= sizeof(struct ieee80211_tim_ie)) {
- elems->tim = (void *)pos;
- elems->tim_len = elen;
- }
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
- case WLAN_EID_CHALLENGE:
- elems->challenge = pos;
- elems->challenge_len = elen;
- break;
- case WLAN_EID_VENDOR_SPECIFIC:
- if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
- pos[2] == 0xf2) {
- /* Microsoft OUI (00:50:F2) */
-
- if (calc_crc)
- crc = crc32_be(crc, pos - 2, elen + 2);
-
- if (pos[3] == 1) {
- /* OUI Type 1 - WPA IE */
- elems->wpa = pos;
- elems->wpa_len = elen;
- } else if (elen >= 5 && pos[3] == 2) {
- /* OUI Type 2 - WMM IE */
- if (pos[4] == 0) {
- elems->wmm_info = pos;
- elems->wmm_info_len = elen;
- } else if (pos[4] == 1) {
- elems->wmm_param = pos;
- elems->wmm_param_len = elen;
- }
- }
- }
- break;
- case WLAN_EID_RSN:
- elems->rsn = pos;
- elems->rsn_len = elen;
- break;
- case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
- break;
- case WLAN_EID_EXT_SUPP_RATES:
- elems->ext_supp_rates = pos;
- elems->ext_supp_rates_len = elen;
- break;
- case WLAN_EID_HT_CAPABILITY:
- if (elen >= sizeof(struct ieee80211_ht_cap))
- elems->ht_cap_elem = (void *)pos;
- break;
- case WLAN_EID_HT_INFORMATION:
- if (elen >= sizeof(struct ieee80211_ht_info))
- elems->ht_info_elem = (void *)pos;
- break;
- case WLAN_EID_MESH_ID:
- elems->mesh_id = pos;
- elems->mesh_id_len = elen;
- break;
- case WLAN_EID_MESH_CONFIG:
- if (elen >= sizeof(struct ieee80211_meshconf_ie))
- elems->mesh_config = (void *)pos;
- break;
- case WLAN_EID_PEER_MGMT:
- elems->peering = pos;
- elems->peering_len = elen;
- break;
- case WLAN_EID_PREQ:
- elems->preq = pos;
- elems->preq_len = elen;
- break;
- case WLAN_EID_PREP:
- elems->prep = pos;
- elems->prep_len = elen;
- break;
- case WLAN_EID_PERR:
- elems->perr = pos;
- elems->perr_len = elen;
- break;
- case WLAN_EID_RANN:
- if (elen >= sizeof(struct ieee80211_rann_ie))
- elems->rann = (void *)pos;
- break;
- case WLAN_EID_CHANNEL_SWITCH:
- elems->ch_switch_elem = pos;
- elems->ch_switch_elem_len = elen;
- break;
- case WLAN_EID_QUIET:
- if (!elems->quiet_elem) {
- elems->quiet_elem = pos;
- elems->quiet_elem_len = elen;
- }
- elems->num_of_quiet_elem++;
- break;
- case WLAN_EID_COUNTRY:
- elems->country_elem = pos;
- elems->country_elem_len = elen;
- break;
- case WLAN_EID_PWR_CONSTRAINT:
- elems->pwr_constr_elem = pos;
- elems->pwr_constr_elem_len = elen;
- break;
- case WLAN_EID_TIMEOUT_INTERVAL:
- elems->timeout_int = pos;
- elems->timeout_int_len = elen;
- break;
- default:
- break;
- }
-
- left -= elen;
- pos += elen;
- }
-
- return crc;
-}
-EXPORT_SYMBOL(ieee802_11_parse_elems_crc);
projects / ~andy / linux / commitdiff