diff options
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/util.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index 2f178f73943..a21dd3ad2b3 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -6,7 +6,6 @@ #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" @@ -1049,170 +1048,3 @@ int ieee80211_get_ratemask(struct ieee80211_supported_band *sband, 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); |