|
|
- From 4e7af9f022996cb0a03b30f6af265b757807dfa2 Mon Sep 17 00:00:00 2001
- From: Paul Fertser <fercerpav@gmail.com>
- Date: Wed, 27 Jun 2012 17:44:55 +0400
- Subject: [PATCH 1/3] wpscrack: big-endian fixes
-
- This should fix access to the radiotap, 802.11, LLC/SNAP and WFA
- headers' fields. Run-time tested on an ar71xx BE system.
-
- Signed-off-by: Paul Fertser <fercerpav@gmail.com>
- ---
- src/80211.c | 65 +++++++++++++++++++------------
- src/builder.c | 23 +++++------
- src/defs.h | 116 +++++++++++++++++++++++++++++++++++++++-----------------
- src/exchange.c | 23 ++++++-----
- src/wpsmon.c | 13 ++++--
- 5 files changed, 151 insertions(+), 89 deletions(-)
-
- diff --git a/src/80211.c b/src/80211.c
- index c2aff59..19f1e92 100644
- --- a/src/80211.c
- +++ b/src/80211.c
- @@ -90,17 +90,19 @@ void read_ap_beacon()
- if(header.len >= MIN_BEACON_SIZE)
- {
- rt_header = (struct radio_tap_header *) radio_header(packet, header.len);
- - frame_header = (struct dot11_frame_header *) (packet + rt_header->len);
- -
- + size_t rt_header_len = __le16_to_cpu(rt_header->len);
- + frame_header = (struct dot11_frame_header *) (packet + rt_header_len);
- +
- if(is_target(frame_header))
- {
- - if(frame_header->fc.type == MANAGEMENT_FRAME && frame_header->fc.sub_type == SUBTYPE_BEACON)
- + if((frame_header->fc & __cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
- + __cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON))
- {
- - beacon = (struct beacon_management_frame *) (packet + rt_header->len + sizeof(struct dot11_frame_header));
- + beacon = (struct beacon_management_frame *) (packet + rt_header_len + sizeof(struct dot11_frame_header));
- set_ap_capability(beacon->capability);
-
- /* Obtain the SSID and channel number from the beacon packet */
- - tag_offset = rt_header->len + sizeof(struct dot11_frame_header) + sizeof(struct beacon_management_frame);
- + tag_offset = rt_header_len + sizeof(struct dot11_frame_header) + sizeof(struct beacon_management_frame);
- channel = parse_beacon_tags(packet, header.len);
-
- /* If no channel was manually specified, switch to the AP's current channel */
- @@ -135,29 +137,31 @@ int8_t signal_strength(const u_char *packet, size_t len)
- {
- header = (struct radio_tap_header *) packet;
-
- - if((header->flags & SSI_FLAG) == SSI_FLAG)
- + uint32_t flags = __le32_to_cpu(header->flags);
- +
- + if((flags & SSI_FLAG) == SSI_FLAG)
- {
- - if((header->flags & TSFT_FLAG) == TSFT_FLAG)
- + if((flags & TSFT_FLAG) == TSFT_FLAG)
- {
- offset += TSFT_SIZE;
- }
-
- - if((header->flags & FLAGS_FLAG) == FLAGS_FLAG)
- + if((flags & FLAGS_FLAG) == FLAGS_FLAG)
- {
- offset += FLAGS_SIZE;
- }
-
- - if((header->flags & RATE_FLAG) == RATE_FLAG)
- + if((flags & RATE_FLAG) == RATE_FLAG)
- {
- offset += RATE_SIZE;
- }
-
- - if((header->flags & CHANNEL_FLAG) == CHANNEL_FLAG)
- + if((flags & CHANNEL_FLAG) == CHANNEL_FLAG)
- {
- offset += CHANNEL_SIZE;
- }
-
- - if((header->flags & FHSS_FLAG) == FHSS_FLAG)
- + if((flags & FHSS_FLAG) == FHSS_FLAG)
- {
- offset += FHSS_FLAG;
- }
- @@ -196,11 +200,13 @@ int is_wps_locked()
- if(header.len >= MIN_BEACON_SIZE)
- {
- rt_header = (struct radio_tap_header *) radio_header(packet, header.len);
- - frame_header = (struct dot11_frame_header *) (packet + rt_header->len);
- + size_t rt_header_len = __le16_to_cpu(rt_header->len);
- + frame_header = (struct dot11_frame_header *) (packet + rt_header_len);
-
- if(memcmp(frame_header->addr3, get_bssid(), MAC_ADDR_LEN) == 0)
- {
- - if(frame_header->fc.type == MANAGEMENT_FRAME && frame_header->fc.sub_type == SUBTYPE_BEACON)
- + if((frame_header->fc & __cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
- + __cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON))
- {
- if(parse_wps_parameters(packet, header.len, &wps))
- {
- @@ -411,24 +417,30 @@ int associate_recv_loop()
- if(header.len >= MIN_AUTH_SIZE)
- {
- rt_header = (struct radio_tap_header *) radio_header(packet, header.len);
- - dot11_frame = (struct dot11_frame_header *) (packet + rt_header->len);
- + size_t rt_header_len = __le16_to_cpu(rt_header->len);
- + dot11_frame = (struct dot11_frame_header *) (packet + rt_header_len);
-
- if((memcmp(dot11_frame->addr3, get_bssid(), MAC_ADDR_LEN) == 0) &&
- (memcmp(dot11_frame->addr1, get_mac(), MAC_ADDR_LEN) == 0))
- {
- - if(dot11_frame->fc.type == MANAGEMENT_FRAME)
- + if((dot11_frame->fc & __cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
- + __cpu_to_le16(IEEE80211_FTYPE_MGMT))
- {
- - auth_frame = (struct authentication_management_frame *) (packet + sizeof(struct dot11_frame_header) + rt_header->len);
- - assoc_frame = (struct association_response_management_frame *) (packet + sizeof(struct dot11_frame_header) + rt_header->len);
- + auth_frame = (struct authentication_management_frame *) (packet + sizeof(struct dot11_frame_header) + rt_header_len);
- + assoc_frame = (struct association_response_management_frame *) (packet + sizeof(struct dot11_frame_header) + rt_header_len);
-
- /* Did we get an authentication packet with a successful status? */
- - if((dot11_frame->fc.sub_type == SUBTYPE_AUTHENTICATION) && (auth_frame->status == AUTHENTICATION_SUCCESS))
- + if((dot11_frame->fc & __cpu_to_le16(IEEE80211_FCTL_STYPE)) ==
- + __cpu_to_le16(IEEE80211_STYPE_AUTH)
- + && (auth_frame->status == __cpu_to_le16(AUTHENTICATION_SUCCESS)))
- {
- ret_val = AUTH_OK;
- break;
- }
- /* Did we get an association packet with a successful status? */
- - else if((dot11_frame->fc.sub_type == SUBTYPE_ASSOCIATION) && (assoc_frame->status == ASSOCIATION_SUCCESS))
- + else if((dot11_frame->fc & __cpu_to_le16(IEEE80211_FCTL_STYPE)) ==
- + __cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP)
- + && (assoc_frame->status == __cpu_to_le16(ASSOCIATION_SUCCESS)))
- {
- ret_val = ASSOCIATE_OK;
- break;
- @@ -455,13 +467,14 @@ enum encryption_type supported_encryption(const u_char *packet, size_t len)
- if(len > MIN_BEACON_SIZE)
- {
- rt_header = (struct radio_tap_header *) radio_header(packet, len);
- - beacon = (struct beacon_management_frame *) (packet + rt_header->len + sizeof(struct dot11_frame_header));
- - offset = tag_offset = rt_header->len + sizeof(struct dot11_frame_header) + sizeof(struct beacon_management_frame);
- + size_t rt_header_len = __le16_to_cpu(rt_header->len);
- + beacon = (struct beacon_management_frame *) (packet + rt_header_len + sizeof(struct dot11_frame_header));
- + offset = tag_offset = rt_header_len + sizeof(struct dot11_frame_header) + sizeof(struct beacon_management_frame);
-
- tag_len = len - tag_offset;
- tag_data = (const u_char *) (packet + tag_offset);
-
- - if((beacon->capability & CAPABILITY_WEP) == CAPABILITY_WEP)
- + if((__le16_to_cpu(beacon->capability) & CAPABILITY_WEP) == CAPABILITY_WEP)
- {
- enc = WEP;
-
- @@ -509,7 +522,7 @@ int parse_beacon_tags(const u_char *packet, size_t len)
- struct radio_tap_header *rt_header = NULL;
-
- rt_header = (struct radio_tap_header *) radio_header(packet, len);
- - tag_offset = rt_header->len + sizeof(struct dot11_frame_header) + sizeof(struct beacon_management_frame);
- + tag_offset = __le16_to_cpu(rt_header->len) + sizeof(struct dot11_frame_header) + sizeof(struct beacon_management_frame);
-
- if(tag_offset < len)
- {
- @@ -548,7 +561,7 @@ int parse_beacon_tags(const u_char *packet, size_t len)
- {
- if(ie_len == 1)
- {
- - memcpy((int *) &channel, channel_data, ie_len);
- + channel = *(uint8_t*)channel_data;
- }
- free(channel_data);
- }
- @@ -603,13 +616,13 @@ int check_fcs(const u_char *packet, size_t len)
- if(len > 4)
- {
- /* Get the packet's reported FCS (last 4 bytes of the packet) */
- - memcpy((uint32_t *) &fcs, (packet + (len-4)), 4);
- + fcs = __le32_to_cpu(*(uint32_t*)(packet + (len-4)));
-
- /* FCS is not calculated over the radio tap header */
- if(has_rt_header())
- {
- rt_header = (struct radio_tap_header *) packet;
- - offset += rt_header->len;
- + offset += __le16_to_cpu(rt_header->len);
- }
-
- if(len > offset)
- diff --git a/src/builder.c b/src/builder.c
- index 37f2de7..6bf89e7 100644
- --- a/src/builder.c
- +++ b/src/builder.c
- @@ -44,9 +44,8 @@ const void *build_radio_tap_header(size_t *len)
- memset((void *) buf, 0, sizeof(struct radio_tap_header));
- rt_header = (struct radio_tap_header *) buf;
-
- - rt_header->len = sizeof(struct radio_tap_header);
- -
- - *len = rt_header->len;
- + *len = sizeof(struct radio_tap_header);
- + rt_header->len = __cpu_to_le16(*len);
- }
-
- return buf;
- @@ -67,9 +66,9 @@ const void *build_dot11_frame_header(uint16_t fc, size_t *len)
-
- frag_seq += SEQ_MASK;
-
- - header->duration = DEFAULT_DURATION;
- - memcpy((void *) &header->fc, (void *) &fc, sizeof(struct frame_control));
- - header->frag_seq = frag_seq;
- + header->duration = __cpu_to_le16(DEFAULT_DURATION);
- + header->fc = __cpu_to_le16(fc);
- + header->frag_seq = __cpu_to_le16(frag_seq);
-
- memcpy((void *) header->addr1, get_bssid(), MAC_ADDR_LEN);
- memcpy((void *) header->addr2, get_mac(), MAC_ADDR_LEN);
- @@ -91,8 +90,8 @@ const void *build_authentication_management_frame(size_t *len)
- memset((void *) buf, 0, *len);
- frame = (struct authentication_management_frame *) buf;
-
- - frame->algorithm = OPEN_SYSTEM;
- - frame->sequence = 1;
- + frame->algorithm = __cpu_to_le16(OPEN_SYSTEM);
- + frame->sequence = __cpu_to_le16(1);
- frame->status = 0;
- }
-
- @@ -111,8 +110,8 @@ const void *build_association_management_frame(size_t *len)
- memset((void *) buf, 0, *len);
- frame = (struct association_request_management_frame *) buf;
-
- - frame->capability = get_ap_capability();
- - frame->listen_interval = LISTEN_INTERVAL;
- + frame->capability = __cpu_to_le16(get_ap_capability());
- + frame->listen_interval = __cpu_to_le16(LISTEN_INTERVAL);
- }
-
- return buf;
- @@ -133,7 +132,7 @@ const void *build_llc_header(size_t *len)
- header->dsap = LLC_SNAP;
- header->ssap = LLC_SNAP;
- header->control_field = UNNUMBERED_FRAME;
- - header->type = DOT1X_AUTHENTICATION;
- + header->type = __cpu_to_be16(DOT1X_AUTHENTICATION);
-
- }
-
- @@ -279,7 +278,7 @@ const void *build_wfa_header(uint8_t op_code, size_t *len)
- header = (struct wfa_expanded_header *) buf;
-
- memcpy(header->id, WFA_VENDOR_ID, sizeof(header->id));
- - header->type = SIMPLE_CONFIG;
- + header->type = __cpu_to_be32(SIMPLE_CONFIG);
- header->opcode = op_code;
- }
-
- diff --git a/src/defs.h b/src/defs.h
- index b2f45ea..0c628e7 100644
- --- a/src/defs.h
- +++ b/src/defs.h
- @@ -41,6 +41,7 @@
- #include <string.h>
- #include <time.h>
- #include <pcap.h>
- +#include <asm/byteorder.h>
-
- #include "wps.h"
-
- @@ -65,10 +66,10 @@
- #define MANAGEMENT_FRAME 0x00
- #define SUBTYPE_BEACON 0x08
-
- -#define DOT1X_AUTHENTICATION 0x8E88
- +#define DOT1X_AUTHENTICATION 0x888E
- #define DOT1X_EAP_PACKET 0x00
-
- -#define SIMPLE_CONFIG 0x01000000
- +#define SIMPLE_CONFIG 0x00000001
-
- #define P1_SIZE 10000
- #define P2_SIZE 1000
- @@ -282,66 +283,111 @@ enum wfa_elements
- WEP_TRANSMIT_KEY = 0x10064
- };
-
- +#define IEEE80211_FCTL_VERS 0x0003
- +#define IEEE80211_FCTL_FTYPE 0x000c
- +#define IEEE80211_FCTL_STYPE 0x00f0
- +#define IEEE80211_FCTL_TODS 0x0100
- +#define IEEE80211_FCTL_FROMDS 0x0200
- +#define IEEE80211_FCTL_MOREFRAGS 0x0400
- +#define IEEE80211_FCTL_RETRY 0x0800
- +#define IEEE80211_FCTL_PM 0x1000
- +#define IEEE80211_FCTL_MOREDATA 0x2000
- +#define IEEE80211_FCTL_PROTECTED 0x4000
- +#define IEEE80211_FCTL_ORDER 0x8000
- +
- +#define IEEE80211_SCTL_FRAG 0x000F
- +#define IEEE80211_SCTL_SEQ 0xFFF0
- +
- +#define IEEE80211_FTYPE_MGMT 0x0000
- +#define IEEE80211_FTYPE_CTL 0x0004
- +#define IEEE80211_FTYPE_DATA 0x0008
- +
- +/* management */
- +#define IEEE80211_STYPE_ASSOC_REQ 0x0000
- +#define IEEE80211_STYPE_ASSOC_RESP 0x0010
- +#define IEEE80211_STYPE_REASSOC_REQ 0x0020
- +#define IEEE80211_STYPE_REASSOC_RESP 0x0030
- +#define IEEE80211_STYPE_PROBE_REQ 0x0040
- +#define IEEE80211_STYPE_PROBE_RESP 0x0050
- +#define IEEE80211_STYPE_BEACON 0x0080
- +#define IEEE80211_STYPE_ATIM 0x0090
- +#define IEEE80211_STYPE_DISASSOC 0x00A0
- +#define IEEE80211_STYPE_AUTH 0x00B0
- +#define IEEE80211_STYPE_DEAUTH 0x00C0
- +#define IEEE80211_STYPE_ACTION 0x00D0
- +
- +/* control */
- +#define IEEE80211_STYPE_BACK_REQ 0x0080
- +#define IEEE80211_STYPE_BACK 0x0090
- +#define IEEE80211_STYPE_PSPOLL 0x00A0
- +#define IEEE80211_STYPE_RTS 0x00B0
- +#define IEEE80211_STYPE_CTS 0x00C0
- +#define IEEE80211_STYPE_ACK 0x00D0
- +#define IEEE80211_STYPE_CFEND 0x00E0
- +#define IEEE80211_STYPE_CFENDACK 0x00F0
- +
- +/* data */
- +#define IEEE80211_STYPE_DATA 0x0000
- +#define IEEE80211_STYPE_DATA_CFACK 0x0010
- +#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
- +#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
- +#define IEEE80211_STYPE_NULLFUNC 0x0040
- +#define IEEE80211_STYPE_CFACK 0x0050
- +#define IEEE80211_STYPE_CFPOLL 0x0060
- +#define IEEE80211_STYPE_CFACKPOLL 0x0070
- +#define IEEE80211_STYPE_QOS_DATA 0x0080
- +#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
- +#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
- +#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
- +#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
- +#define IEEE80211_STYPE_QOS_CFACK 0x00D0
- +#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
- +#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
- +
- #pragma pack(1)
- struct radio_tap_header
- {
- uint8_t revision;
- uint8_t pad;
- - uint16_t len;
- - uint32_t flags;
- -};
- -
- -struct frame_control
- -{
- - unsigned version : 2;
- - unsigned type : 2;
- - unsigned sub_type : 4;
- -
- - unsigned to_ds : 1;
- - unsigned from_ds : 1;
- - unsigned more_frag : 1;
- - unsigned retry : 1;
- - unsigned pwr_mgt : 1;
- - unsigned more_data : 1;
- - unsigned protected_frame : 1;
- - unsigned order : 1;
- + __le16 len;
- + __le32 flags;
- };
-
- struct dot11_frame_header
- {
- - struct frame_control fc;
- - uint16_t duration;
- + __le16 fc;
- + __le16 duration;
- unsigned char addr1[MAC_ADDR_LEN];
- unsigned char addr2[MAC_ADDR_LEN];
- unsigned char addr3[MAC_ADDR_LEN];
- - uint16_t frag_seq;
- + __le16 frag_seq;
- };
-
- struct authentication_management_frame
- {
- - uint16_t algorithm;
- - uint16_t sequence;
- - uint16_t status;
- + __le16 algorithm;
- + __le16 sequence;
- + __le16 status;
- };
-
- struct association_request_management_frame
- {
- - uint16_t capability;
- - uint16_t listen_interval;
- + __le16 capability;
- + __le16 listen_interval;
- };
-
- struct association_response_management_frame
- {
- - uint16_t capability;
- - uint16_t status;
- - uint16_t id;
- + __le16 capability;
- + __le16 status;
- + __le16 id;
- };
-
- struct beacon_management_frame
- {
- unsigned char timestamp[TIMESTAMP_LEN];
- - uint16_t beacon_interval;
- - uint16_t capability;
- + __le16 beacon_interval;
- + __le16 capability;
- };
-
- struct llc_header
- @@ -350,7 +396,7 @@ struct llc_header
- uint8_t ssap;
- uint8_t control_field;
- unsigned char org_code[3];
- - uint16_t type;
- + __be16 type;
- };
-
- struct dot1X_header
- @@ -371,7 +417,7 @@ struct eap_header
- struct wfa_expanded_header
- {
- unsigned char id[3];
- - uint32_t type;
- + __be32 type;
- uint8_t opcode;
- uint8_t flags;
- };
- diff --git a/src/exchange.c b/src/exchange.c
- index 23c87e9..4f9a82b 100644
- --- a/src/exchange.c
- +++ b/src/exchange.c
- @@ -306,26 +306,27 @@ enum wps_type process_packet(const u_char *packet, struct pcap_pkthdr *header)
-
- /* Cast the radio tap and 802.11 frame headers and parse out the Frame Control field */
- rt_header = (struct radio_tap_header *) packet;
- - frame_header = (struct dot11_frame_header *) (packet+rt_header->len);
- + size_t rt_header_len = __le16_to_cpu(rt_header->len);
- + frame_header = (struct dot11_frame_header *) (packet+rt_header_len);
-
- /* Does the BSSID/source address match our target BSSID? */
- if(memcmp(frame_header->addr3, get_bssid(), MAC_ADDR_LEN) == 0)
- {
- /* Is this a data packet sent to our MAC address? */
- - if(frame_header->fc.type == DATA_FRAME &&
- - frame_header->fc.sub_type == SUBTYPE_DATA &&
- - (memcmp(frame_header->addr1, get_mac(), MAC_ADDR_LEN) == 0))
- + if (((frame_header->fc & __cpu_to_le16(IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE)) ==
- + __cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA)) &&
- + (memcmp(frame_header->addr1, get_mac(), MAC_ADDR_LEN) == 0))
- {
- llc = (struct llc_header *) (packet +
- - rt_header->len +
- + rt_header_len +
- sizeof(struct dot11_frame_header)
- );
-
- /* All packets in our exchanges will be 802.1x */
- - if(llc->type == DOT1X_AUTHENTICATION)
- + if(llc->type == __cpu_to_be16(DOT1X_AUTHENTICATION))
- {
- dot1x = (struct dot1X_header *) (packet +
- - rt_header->len +
- + rt_header_len +
- sizeof(struct dot11_frame_header) +
- sizeof(struct llc_header)
- );
- @@ -334,7 +335,7 @@ enum wps_type process_packet(const u_char *packet, struct pcap_pkthdr *header)
- if(dot1x->type == DOT1X_EAP_PACKET && (header->len >= EAP_PACKET_SIZE))
- {
- eap = (struct eap_header *) (packet +
- - rt_header->len +
- + rt_header_len +
- sizeof(struct dot11_frame_header) +
- sizeof(struct llc_header) +
- sizeof(struct dot1X_header)
- @@ -366,7 +367,7 @@ enum wps_type process_packet(const u_char *packet, struct pcap_pkthdr *header)
- else if((eap->type == EAP_EXPANDED) && (header->len > WFA_PACKET_SIZE))
- {
- wfa = (struct wfa_expanded_header *) (packet +
- - rt_header->len +
- + rt_header_len +
- sizeof(struct dot11_frame_header) +
- sizeof(struct llc_header) +
- sizeof(struct dot1X_header) +
- @@ -374,14 +375,14 @@ enum wps_type process_packet(const u_char *packet, struct pcap_pkthdr *header)
- );
-
- /* Verify that this is a WPS message */
- - if(wfa->type == SIMPLE_CONFIG)
- + if(wfa->type == __cpu_to_be32(SIMPLE_CONFIG))
- {
- wps_msg_len = (size_t) ntohs(eap->len) -
- sizeof(struct eap_header) -
- sizeof(struct wfa_expanded_header);
-
- wps_msg = (const void *) (packet +
- - rt_header->len +
- + rt_header_len +
- sizeof(struct dot11_frame_header) +
- sizeof(struct llc_header) +
- sizeof(struct dot1X_header) +
- diff --git a/src/wpsmon.c b/src/wpsmon.c
- index d976924..22a394f 100644
- --- a/src/wpsmon.c
- +++ b/src/wpsmon.c
- @@ -295,7 +295,8 @@ void parse_wps_settings(const u_char *packet, struct pcap_pkthdr *header, char *
- }
-
- rt_header = (struct radio_tap_header *) radio_header(packet, header->len);
- - frame_header = (struct dot11_frame_header *) (packet + rt_header->len);
- + size_t rt_header_len = __le16_to_cpu(rt_header->len);
- + frame_header = (struct dot11_frame_header *) (packet + rt_header_len);
-
- /* If a specific BSSID was specified, only parse packets from that BSSID */
- if(!is_target(frame_header))
- @@ -323,15 +324,17 @@ void parse_wps_settings(const u_char *packet, struct pcap_pkthdr *header, char *
- channel_changed = 1;
- }
-
- - if(frame_header->fc.sub_type == PROBE_RESPONSE ||
- - frame_header->fc.sub_type == SUBTYPE_BEACON)
- + unsigned fsub_type = frame_header->fc & __cpu_to_le16(IEEE80211_FCTL_STYPE);
- +
- + if(fsub_type == __cpu_to_le16(IEEE80211_STYPE_PROBE_RESP) ||
- + fsub_type == __cpu_to_le16(IEEE80211_STYPE_BEACON))
- {
- wps_parsed = parse_wps_parameters(packet, header->len, wps);
- }
-
- if(!is_done(bssid) && (get_channel() == channel || source == PCAP_FILE))
- {
- - if(frame_header->fc.sub_type == SUBTYPE_BEACON &&
- + if(fsub_type == __cpu_to_le16(IEEE80211_STYPE_BEACON) &&
- mode == SCAN &&
- !passive &&
- should_probe(bssid))
- @@ -369,7 +372,7 @@ void parse_wps_settings(const u_char *packet, struct pcap_pkthdr *header, char *
- * If there was no WPS information, then the AP does not support WPS and we should ignore it from here on.
- * If this was a probe response, then we've gotten all WPS info we can get from this AP and should ignore it from here on.
- */
- - if(!wps_parsed || frame_header->fc.sub_type == PROBE_RESPONSE)
- + if(!wps_parsed || fsub_type == __cpu_to_le16(IEEE80211_STYPE_PROBE_RESP))
- {
- mark_ap_complete(bssid);
- }
- --
- 1.7.7
-
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