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/* $OpenBSD: print-802_11.c,v 1.40 2017/09/01 14:04:49 stsp Exp $ */ |
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/* |
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* Copyright (c) 2005 Reyk Floeter <reyk@openbsd.org> |
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* |
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* Permission to use, copy, modify, and distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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*/ |
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#include <sys/time.h> |
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#include <sys/socket.h> |
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#include <sys/file.h> |
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#include <sys/ioctl.h> |
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#include <net/if.h> |
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#include <netinet/in.h> |
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#include <netinet/if_ether.h> |
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#include <net80211/ieee80211.h> |
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#include <net80211/ieee80211_radiotap.h> |
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#include <ctype.h> |
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#include <pcap.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include "addrtoname.h" |
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#include "interface.h" |
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const char *ieee80211_ctl_subtype_name[] = { |
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"reserved#0", |
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"reserved#1", |
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"reserved#2", |
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"reserved#3", |
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"reserved#4", |
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"reserved#5", |
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"reserved#6", |
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"wrapper", |
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"block ack request", |
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"block ack", |
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"ps poll", |
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"rts", |
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"cts", |
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"ack", |
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"cf-end", |
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"cf-end-ack", |
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}; |
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const char *ieee80211_mgt_subtype_name[] = { |
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"association request", |
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"association response", |
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"reassociation request", |
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"reassociation response", |
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"probe request", |
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"probe response", |
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"reserved#6", |
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"reserved#7", |
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"beacon", |
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"atim", |
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"disassociation", |
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"authentication", |
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"deauthentication", |
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"action", |
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"action noack", |
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"reserved#15" |
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}; |
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const char *ieee80211_data_subtype_name[] = { |
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"data", |
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"data cf ack", |
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"data cf poll", |
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"data cf poll ack", |
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"no-data", |
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"no-data cf poll", |
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"no-data cf ack", |
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"no-data cf poll ack", |
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"QoS data", |
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"QoS data cf ack", |
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"QoS data cf poll", |
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"QoS data cf poll ack", |
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"QoS no-data", |
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"QoS no-data cf poll", |
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"QoS no-data cf ack", |
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"QoS no-data cf poll ack" |
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}; |
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int ieee80211_hdr(struct ieee80211_frame *); |
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int ieee80211_data(struct ieee80211_frame *, u_int); |
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void ieee80211_print_element(u_int8_t *, u_int); |
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void ieee80211_print_essid(u_int8_t *, u_int); |
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void ieee80211_print_country(u_int8_t *, u_int); |
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void ieee80211_print_htcaps(u_int8_t *, u_int); |
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void ieee80211_print_htop(u_int8_t *, u_int); |
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void ieee80211_print_rsncipher(u_int8_t []); |
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void ieee80211_print_akm(u_int8_t []); |
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void ieee80211_print_rsn(u_int8_t *, u_int); |
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int ieee80211_print_beacon(struct ieee80211_frame *, u_int); |
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int ieee80211_print_assocreq(struct ieee80211_frame *, u_int); |
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int ieee80211_print_elements(uint8_t *); |
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int ieee80211_frame(struct ieee80211_frame *, u_int); |
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int ieee80211_print(struct ieee80211_frame *, u_int); |
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u_int ieee80211_any2ieee(u_int, u_int); |
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void ieee80211_reason(u_int16_t); |
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#define TCARR(a) TCHECK2(*a, sizeof(a)) |
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int ieee80211_encap = 0; |
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int |
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ieee80211_hdr(struct ieee80211_frame *wh) |
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{ |
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struct ieee80211_frame_addr4 *w4; |
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switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { |
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case IEEE80211_FC1_DIR_NODS: |
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TCARR(wh->i_addr2); |
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printf("%s", etheraddr_string(wh->i_addr2)); |
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TCARR(wh->i_addr1); |
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printf(" > %s", etheraddr_string(wh->i_addr1)); |
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TCARR(wh->i_addr3); |
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printf(", bssid %s", etheraddr_string(wh->i_addr3)); |
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break; |
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case IEEE80211_FC1_DIR_TODS: |
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TCARR(wh->i_addr2); |
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printf("%s", etheraddr_string(wh->i_addr2)); |
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TCARR(wh->i_addr3); |
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printf(" > %s", etheraddr_string(wh->i_addr3)); |
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TCARR(wh->i_addr1); |
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printf(", bssid %s, > DS", etheraddr_string(wh->i_addr1)); |
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break; |
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case IEEE80211_FC1_DIR_FROMDS: |
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TCARR(wh->i_addr3); |
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printf("%s", etheraddr_string(wh->i_addr3)); |
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TCARR(wh->i_addr1); |
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printf(" > %s", etheraddr_string(wh->i_addr1)); |
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TCARR(wh->i_addr2); |
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printf(", bssid %s, DS >", etheraddr_string(wh->i_addr2)); |
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break; |
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case IEEE80211_FC1_DIR_DSTODS: |
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w4 = (struct ieee80211_frame_addr4 *) wh; |
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TCARR(w4->i_addr4); |
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printf("%s", etheraddr_string(w4->i_addr4)); |
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TCARR(w4->i_addr3); |
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printf(" > %s", etheraddr_string(w4->i_addr3)); |
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TCARR(w4->i_addr2); |
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printf(", bssid %s", etheraddr_string(w4->i_addr2)); |
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TCARR(w4->i_addr1); |
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printf(" > %s, DS > DS", etheraddr_string(w4->i_addr1)); |
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break; |
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} |
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if (vflag) { |
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u_int16_t seq; |
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TCARR(wh->i_seq); |
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bcopy(wh->i_seq, &seq, sizeof(u_int16_t)); |
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printf(" (seq %u): ", letoh16(seq)); |
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} else |
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printf(": "); |
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return (0); |
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trunc: |
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/* Truncated elements in frame */ |
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return (1); |
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} |
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int |
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ieee80211_data(struct ieee80211_frame *wh, u_int len) |
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{ |
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u_int8_t *t = (u_int8_t *)wh; |
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u_int datalen; |
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int data = !(wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_NODATA); |
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int hasqos = ((wh->i_fc[0] & |
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(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_QOS)) == |
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(IEEE80211_FC0_TYPE_DATA | IEEE80211_FC0_SUBTYPE_QOS)); |
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u_char *esrc = NULL, *edst = NULL; |
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if (hasqos) { |
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struct ieee80211_qosframe *wq; |
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wq = (struct ieee80211_qosframe *) wh; |
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TCHECK(*wq); |
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t += sizeof(*wq); |
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datalen = len - sizeof(*wq); |
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} else { |
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TCHECK(*wh); |
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t += sizeof(*wh); |
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datalen = len - sizeof(*wh); |
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} |
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switch (wh->i_fc[1] & IEEE80211_FC1_DIR_MASK) { |
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case IEEE80211_FC1_DIR_TODS: |
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esrc = wh->i_addr2; |
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edst = wh->i_addr3; |
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break; |
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case IEEE80211_FC1_DIR_FROMDS: |
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esrc = wh->i_addr3; |
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edst = wh->i_addr1; |
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break; |
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case IEEE80211_FC1_DIR_NODS: |
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esrc = wh->i_addr2; |
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edst = wh->i_addr1; |
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break; |
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case IEEE80211_FC1_DIR_DSTODS: |
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if (hasqos) { |
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struct ieee80211_qosframe_addr4 *w4; |
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w4 = (struct ieee80211_qosframe_addr4 *) wh; |
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TCHECK(*w4); |
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t = (u_int8_t *) (w4 + 1); |
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datalen = len - sizeof(*w4); |
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esrc = w4->i_addr4; |
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edst = w4->i_addr3; |
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} else { |
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struct ieee80211_frame_addr4 *w4; |
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w4 = (struct ieee80211_frame_addr4 *) wh; |
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TCHECK(*w4); |
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t = (u_int8_t *) (w4 + 1); |
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datalen = len - sizeof(*w4); |
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esrc = w4->i_addr4; |
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edst = w4->i_addr3; |
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} |
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break; |
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} |
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if (data && esrc) |
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llc_print(t, datalen, datalen, esrc, edst); |
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else if (eflag && esrc) |
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printf("%s > %s", |
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etheraddr_string(esrc), etheraddr_string(edst)); |
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return (0); |
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trunc: |
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/* Truncated elements in frame */ |
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return (1); |
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} |
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/* Caller checks len */ |
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void |
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ieee80211_print_element(u_int8_t *data, u_int len) |
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{ |
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u_int8_t *p; |
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int i; |
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printf(" 0x"); |
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for (i = 0, p = data; i < len; i++, p++) |
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printf("%02x", *p); |
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} |
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/* Caller checks len */ |
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void |
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ieee80211_print_essid(u_int8_t *essid, u_int len) |
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{ |
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u_int8_t *p; |
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int i; |
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if (len > IEEE80211_NWID_LEN) |
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len = IEEE80211_NWID_LEN; |
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/* determine printable or not */ |
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for (i = 0, p = essid; i < len; i++, p++) { |
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if (*p < ' ' || *p > 0x7e) |
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break; |
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} |
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if (i == len) { |
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printf(" ("); |
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for (i = 0, p = essid; i < len; i++, p++) |
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putchar(*p); |
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putchar(')'); |
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} else |
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ieee80211_print_element(essid, len); |
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} |
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/* Caller checks len */ |
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void |
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ieee80211_print_country(u_int8_t *data, u_int len) |
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{ |
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u_int8_t first_chan, nchan, maxpower; |
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if (len < 6) |
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return; |
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/* country string */ |
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printf((isprint(data[0]) ? " '%c" : " '\\%03o"), data[0]); |
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printf((isprint(data[1]) ? "%c" : "\\%03o"), data[1]); |
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printf((isprint(data[2]) ? "%c'" : "\\%03o'"), data[2]); |
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len -= 3; |
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data += 3; |
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302 |
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/* channels and corresponding TX power limits */ |
303 |
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while (len >= 3) { |
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/* no pretty-printing for nonsensical zero values, |
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* nor for operating extension IDs (values >= 201) */ |
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if (data[0] == 0 || data[1] == 0 || |
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data[0] >= 201 || data[1] >= 201) { |
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printf(", %d %d %d", data[0], data[1], data[2]); |
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len -= 3; |
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data += 3; |
311 |
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continue; |
312 |
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} |
313 |
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314 |
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first_chan = data[0]; |
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nchan = data[1]; |
316 |
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maxpower = data[2]; |
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printf(", channel%s %d", nchan == 1 ? "" : "s", first_chan); |
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if (nchan > 1) |
320 |
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printf("-%d", first_chan + nchan - 1); |
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printf(" limit %ddB", maxpower); |
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len -= 3; |
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data += 3; |
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} |
326 |
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} |
327 |
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328 |
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/* Caller checks len */ |
329 |
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void |
330 |
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ieee80211_print_htcaps(u_int8_t *data, u_int len) |
331 |
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{ |
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uint16_t htcaps, rxrate; |
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int smps, rxstbc; |
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uint8_t ampdu, txmcs; |
335 |
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int i; |
336 |
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uint8_t *rxmcs; |
337 |
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338 |
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if (len < 2) { |
339 |
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ieee80211_print_element(data, len); |
340 |
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return; |
341 |
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} |
342 |
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343 |
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htcaps = (data[0]) | (data[1] << 8); |
344 |
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printf("=<"); |
345 |
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|
346 |
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/* channel width */ |
347 |
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if (htcaps & IEEE80211_HTCAP_CBW20_40) |
348 |
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printf("20/40MHz"); |
349 |
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else |
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printf("20MHz"); |
351 |
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352 |
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/* LDPC coding */ |
353 |
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if (htcaps & IEEE80211_HTCAP_LDPC) |
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printf(",LDPC"); |
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356 |
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/* spatial multiplexing power save mode */ |
357 |
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smps = (htcaps & IEEE80211_HTCAP_SMPS_MASK) |
358 |
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>> IEEE80211_HTCAP_SMPS_SHIFT; |
359 |
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if (smps == 0) |
360 |
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printf(",SMPS static"); |
361 |
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else if (smps == 1) |
362 |
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printf(",SMPS dynamic"); |
363 |
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364 |
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/* 11n greenfield mode */ |
365 |
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if (htcaps & IEEE80211_HTCAP_GF) |
366 |
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printf(",greenfield"); |
367 |
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368 |
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/* short guard interval */ |
369 |
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if (htcaps & IEEE80211_HTCAP_SGI20) |
370 |
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printf(",SGI@20MHz"); |
371 |
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if (htcaps & IEEE80211_HTCAP_SGI40) |
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printf(",SGI@40MHz"); |
373 |
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374 |
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/* space-time block coding */ |
375 |
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if (htcaps & IEEE80211_HTCAP_TXSTBC) |
376 |
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printf(",TXSTBC"); |
377 |
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rxstbc = (htcaps & IEEE80211_HTCAP_RXSTBC_MASK) |
378 |
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>> IEEE80211_HTCAP_RXSTBC_SHIFT; |
379 |
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if (rxstbc > 0 && rxstbc < 4) |
380 |
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printf(",RXSTBC %d stream", rxstbc); |
381 |
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382 |
|
|
/* delayed block-ack */ |
383 |
|
|
if (htcaps & IEEE80211_HTCAP_DELAYEDBA) |
384 |
|
|
printf(",delayed BA"); |
385 |
|
|
|
386 |
|
|
/* max A-MSDU length */ |
387 |
|
|
if (htcaps & IEEE80211_HTCAP_AMSDU7935) |
388 |
|
|
printf(",A-MSDU 7935"); |
389 |
|
|
else |
390 |
|
|
printf(",A-MSDU 3839"); |
391 |
|
|
|
392 |
|
|
/* DSSS/CCK in 40MHz mode */ |
393 |
|
|
if (htcaps & IEEE80211_HTCAP_DSSSCCK40) |
394 |
|
|
printf(",DSSS/CCK@40MHz"); |
395 |
|
|
|
396 |
|
|
/* 40MHz intolerant */ |
397 |
|
|
if (htcaps & IEEE80211_HTCAP_40INTOLERANT) |
398 |
|
|
printf(",40MHz intolerant"); |
399 |
|
|
|
400 |
|
|
/* L-SIG TXOP protection */ |
401 |
|
|
if (htcaps & IEEE80211_HTCAP_LSIGTXOPPROT) |
402 |
|
|
printf(",L-SIG TXOP prot"); |
403 |
|
|
|
404 |
|
|
if (len < 3) { |
405 |
|
|
printf(">"); |
406 |
|
|
return; |
407 |
|
|
} |
408 |
|
|
|
409 |
|
|
/* A-MPDU parameters. */ |
410 |
|
|
ampdu = data[2]; |
411 |
|
|
|
412 |
|
|
/* A-MPDU length exponent */ |
413 |
|
|
if ((ampdu & IEEE80211_AMPDU_PARAM_LE) >= 0 && |
414 |
|
|
(ampdu & IEEE80211_AMPDU_PARAM_LE) <= 3) |
415 |
|
|
printf(",A-MPDU max %d", |
416 |
|
|
(1 << (13 + (ampdu & IEEE80211_AMPDU_PARAM_LE))) - 1); |
417 |
|
|
|
418 |
|
|
/* A-MPDU start spacing */ |
419 |
|
|
if (ampdu & IEEE80211_AMPDU_PARAM_SS) { |
420 |
|
|
float ss; |
421 |
|
|
|
422 |
|
|
switch ((ampdu & IEEE80211_AMPDU_PARAM_SS) >> 2) { |
423 |
|
|
case 1: |
424 |
|
|
ss = 0.25; |
425 |
|
|
break; |
426 |
|
|
case 2: |
427 |
|
|
ss = 0.5; |
428 |
|
|
break; |
429 |
|
|
case 3: |
430 |
|
|
ss = 1; |
431 |
|
|
break; |
432 |
|
|
case 4: |
433 |
|
|
ss = 2; |
434 |
|
|
break; |
435 |
|
|
case 5: |
436 |
|
|
ss = 4; |
437 |
|
|
break; |
438 |
|
|
case 6: |
439 |
|
|
ss = 8; |
440 |
|
|
break; |
441 |
|
|
case 7: |
442 |
|
|
ss = 16; |
443 |
|
|
break; |
444 |
|
|
default: |
445 |
|
|
ss = 0; |
446 |
|
|
break; |
447 |
|
|
} |
448 |
|
|
if (ss != 0) |
449 |
|
|
printf(",A-MPDU spacing %.2fus", ss); |
450 |
|
|
} |
451 |
|
|
|
452 |
|
|
if (len < 21) { |
453 |
|
|
printf(">"); |
454 |
|
|
return; |
455 |
|
|
} |
456 |
|
|
|
457 |
|
|
/* Supported MCS set. */ |
458 |
|
|
printf(",RxMCS 0x"); |
459 |
|
|
rxmcs = &data[3]; |
460 |
|
|
for (i = 0; i < 10; i++) |
461 |
|
|
printf("%02x", rxmcs[i]); |
462 |
|
|
|
463 |
|
|
/* Max MCS Rx rate (a value of 0 means "not specified"). */ |
464 |
|
|
rxrate = ((data[13] | (data[14]) << 8) & IEEE80211_MCS_RX_RATE_HIGH); |
465 |
|
|
if (rxrate) |
466 |
|
|
printf(",RxMaxrate %huMb/s", rxrate); |
467 |
|
|
|
468 |
|
|
/* Tx MCS Set */ |
469 |
|
|
txmcs = data[15]; |
470 |
|
|
if (txmcs & IEEE80211_TX_MCS_SET_DEFINED) { |
471 |
|
|
if (txmcs & IEEE80211_TX_RX_MCS_NOT_EQUAL) { |
472 |
|
|
/* Number of spatial Tx streams. */ |
473 |
|
|
printf(",%d Tx streams", |
474 |
|
|
1 + ((txmcs & IEEE80211_TX_SPATIAL_STREAMS) >> 2)); |
475 |
|
|
/* Transmit unequal modulation supported. */ |
476 |
|
|
if (txmcs & IEEE80211_TX_UNEQUAL_MODULATION) |
477 |
|
|
printf(",UEQM"); |
478 |
|
|
} |
479 |
|
|
} |
480 |
|
|
|
481 |
|
|
printf(">"); |
482 |
|
|
} |
483 |
|
|
|
484 |
|
|
/* Caller checks len */ |
485 |
|
|
void |
486 |
|
|
ieee80211_print_htop(u_int8_t *data, u_int len) |
487 |
|
|
{ |
488 |
|
|
u_int8_t primary_chan; |
489 |
|
|
u_int8_t htopinfo[5]; |
490 |
|
|
u_int8_t basic_mcs[16]; |
491 |
|
|
int sco, htprot, i; |
492 |
|
|
|
493 |
|
|
if (len < sizeof(primary_chan) + sizeof(htopinfo) + sizeof(basic_mcs)) { |
494 |
|
|
ieee80211_print_element(data, len); |
495 |
|
|
return; |
496 |
|
|
} |
497 |
|
|
|
498 |
|
|
htopinfo[0] = data[1]; |
499 |
|
|
|
500 |
|
|
printf("=<"); |
501 |
|
|
|
502 |
|
|
/* primary channel and secondary channel offset */ |
503 |
|
|
primary_chan = data[0]; |
504 |
|
|
sco = ((htopinfo[0] & IEEE80211_HTOP0_SCO_MASK) |
505 |
|
|
>> IEEE80211_HTOP0_SCO_SHIFT); |
506 |
|
|
if (sco == 0) /* no secondary channel */ |
507 |
|
|
printf("20MHz chan %d", primary_chan); |
508 |
|
|
else if (sco == 1) { /* secondary channel above */ |
509 |
|
|
if (primary_chan >= 1 && primary_chan <= 13) /* 2GHz */ |
510 |
|
|
printf("40MHz chan %d:%d", primary_chan, |
511 |
|
|
primary_chan + 1); |
512 |
|
|
else if (primary_chan >= 34) /* 5GHz */ |
513 |
|
|
printf("40MHz chan %d:%d", primary_chan, |
514 |
|
|
primary_chan + 4); |
515 |
|
|
else |
516 |
|
|
printf("[invalid 40MHz chan %d+]", primary_chan); |
517 |
|
|
} else if (sco == 3) { /* secondary channel below */ |
518 |
|
|
if (primary_chan >= 2 && primary_chan <= 14) /* 2GHz */ |
519 |
|
|
printf("40MHz chan %d:%d", primary_chan, |
520 |
|
|
primary_chan - 1); |
521 |
|
|
else if (primary_chan >= 40) /* 5GHz */ |
522 |
|
|
printf("40MHz chan %d:%d", primary_chan, |
523 |
|
|
primary_chan - 4); |
524 |
|
|
else |
525 |
|
|
printf("[invalid 40MHz chan %d-]", primary_chan); |
526 |
|
|
} else |
527 |
|
|
printf("chan %d [invalid secondary channel offset %d]", |
528 |
|
|
primary_chan, sco); |
529 |
|
|
|
530 |
|
|
/* STA channel width */ |
531 |
|
|
if ((htopinfo[0] & IEEE80211_HTOP0_CHW) == 0) |
532 |
|
|
printf(",STA chanw 20MHz"); |
533 |
|
|
|
534 |
|
|
/* reduced interframe space (RIFS) permitted */ |
535 |
|
|
if (htopinfo[0] & IEEE80211_HTOP0_RIFS) |
536 |
|
|
printf(",RIFS"); |
537 |
|
|
|
538 |
|
|
htopinfo[1] = data[2]; |
539 |
|
|
|
540 |
|
|
/* protection requirements for HT transmissions */ |
541 |
|
|
htprot = ((htopinfo[1] & IEEE80211_HTOP1_PROT_MASK) |
542 |
|
|
>> IEEE80211_HTOP1_PROT_SHIFT); |
543 |
|
|
switch (htprot) { |
544 |
|
|
case IEEE80211_HTPROT_NONE: |
545 |
|
|
printf(",htprot none"); |
546 |
|
|
break; |
547 |
|
|
case IEEE80211_HTPROT_NONMEMBER: |
548 |
|
|
printf(",htprot non-member"); |
549 |
|
|
break; |
550 |
|
|
case IEEE80211_HTPROT_20MHZ: |
551 |
|
|
printf(",htprot 20MHz"); |
552 |
|
|
break; |
553 |
|
|
case IEEE80211_HTPROT_NONHT_MIXED: |
554 |
|
|
printf(",htprot non-HT-mixed"); |
555 |
|
|
break; |
556 |
|
|
default: |
557 |
|
|
printf(",htprot %d", htprot); |
558 |
|
|
break; |
559 |
|
|
} |
560 |
|
|
|
561 |
|
|
/* non-greenfield STA present */ |
562 |
|
|
if (htopinfo[1] & IEEE80211_HTOP1_NONGF_STA) |
563 |
|
|
printf(",non-greenfield STA"); |
564 |
|
|
|
565 |
|
|
/* non-HT STA present */ |
566 |
|
|
if (htopinfo[1] & IEEE80211_HTOP1_OBSS_NONHT_STA) |
567 |
|
|
printf(",non-HT STA"); |
568 |
|
|
|
569 |
|
|
htopinfo[3] = data[4]; |
570 |
|
|
|
571 |
|
|
/* dual-beacon */ |
572 |
|
|
if (htopinfo[3] & IEEE80211_HTOP2_DUALBEACON) |
573 |
|
|
printf(",dualbeacon"); |
574 |
|
|
|
575 |
|
|
/* dual CTS protection */ |
576 |
|
|
if (htopinfo[3] & IEEE80211_HTOP2_DUALCTSPROT) |
577 |
|
|
printf(",dualctsprot"); |
578 |
|
|
|
579 |
|
|
htopinfo[4] = data[5]; |
580 |
|
|
|
581 |
|
|
/* space-time block coding (STBC) beacon */ |
582 |
|
|
if ((htopinfo[4] << 8) & IEEE80211_HTOP2_STBCBEACON) |
583 |
|
|
printf(",STBC beacon"); |
584 |
|
|
|
585 |
|
|
/* L-SIG (non-HT signal field) TX opportunity (TXOP) protection */ |
586 |
|
|
if ((htopinfo[4] << 8) & IEEE80211_HTOP2_LSIGTXOP) |
587 |
|
|
printf(",lsigtxprot"); |
588 |
|
|
|
589 |
|
|
/* phased-coexistence operation (PCO) active */ |
590 |
|
|
if ((htopinfo[4] << 8) & IEEE80211_HTOP2_PCOACTIVE) { |
591 |
|
|
/* PCO phase */ |
592 |
|
|
if ((htopinfo[4] << 8) & IEEE80211_HTOP2_PCOPHASE40) |
593 |
|
|
printf(",pco40MHz"); |
594 |
|
|
else |
595 |
|
|
printf(",pco20MHz"); |
596 |
|
|
} |
597 |
|
|
|
598 |
|
|
/* basic MCS set */ |
599 |
|
|
memcpy(basic_mcs, &data[6], sizeof(basic_mcs)); |
600 |
|
|
printf(",basic MCS set 0x"); |
601 |
|
|
for (i = 0; i < sizeof(basic_mcs) / sizeof(basic_mcs[0]); i++) |
602 |
|
|
printf("%x", basic_mcs[i]); |
603 |
|
|
|
604 |
|
|
printf(">"); |
605 |
|
|
} |
606 |
|
|
|
607 |
|
|
void |
608 |
|
|
ieee80211_print_rsncipher(uint8_t selector[4]) |
609 |
|
|
{ |
610 |
|
|
if (memcmp(selector, MICROSOFT_OUI, 3) != 0 && |
611 |
|
|
memcmp(selector, IEEE80211_OUI, 3) != 0) { |
612 |
|
|
printf("0x%x%x%x%x", selector[0], selector[1], selector[2], |
613 |
|
|
selector[3]); |
614 |
|
|
return; |
615 |
|
|
} |
616 |
|
|
|
617 |
|
|
/* See 802.11-2012 Table 8-99 */ |
618 |
|
|
switch (selector[3]) { |
619 |
|
|
case 0: /* use group data cipher suite */ |
620 |
|
|
printf("usegroup"); |
621 |
|
|
break; |
622 |
|
|
case 1: /* WEP-40 */ |
623 |
|
|
printf("wep40"); |
624 |
|
|
break; |
625 |
|
|
case 2: /* TKIP */ |
626 |
|
|
printf("tkip"); |
627 |
|
|
break; |
628 |
|
|
case 4: /* CCMP (RSNA default) */ |
629 |
|
|
printf("ccmp"); |
630 |
|
|
break; |
631 |
|
|
case 5: /* WEP-104 */ |
632 |
|
|
printf("wep104"); |
633 |
|
|
break; |
634 |
|
|
case 6: /* BIP */ |
635 |
|
|
printf("bip"); |
636 |
|
|
break; |
637 |
|
|
default: |
638 |
|
|
printf("%d", selector[3]); |
639 |
|
|
break; |
640 |
|
|
} |
641 |
|
|
} |
642 |
|
|
|
643 |
|
|
void |
644 |
|
|
ieee80211_print_akm(uint8_t selector[4]) |
645 |
|
|
{ |
646 |
|
|
if (memcmp(selector, MICROSOFT_OUI, 3) != 0 && |
647 |
|
|
memcmp(selector, IEEE80211_OUI, 3) != 0) { |
648 |
|
|
printf("0x%x%x%x%x", selector[0], selector[1], selector[2], |
649 |
|
|
selector[3]); |
650 |
|
|
return; |
651 |
|
|
} |
652 |
|
|
|
653 |
|
|
switch (selector[3]) { |
654 |
|
|
case 1: |
655 |
|
|
printf("802.1x"); |
656 |
|
|
break; |
657 |
|
|
case 2: |
658 |
|
|
printf("PSK"); |
659 |
|
|
break; |
660 |
|
|
case 5: |
661 |
|
|
printf("SHA256-802.1x"); |
662 |
|
|
break; |
663 |
|
|
case 6: |
664 |
|
|
printf("SHA256-PSK"); |
665 |
|
|
break; |
666 |
|
|
default: |
667 |
|
|
printf("%d", selector[3]); |
668 |
|
|
break; |
669 |
|
|
} |
670 |
|
|
} |
671 |
|
|
|
672 |
|
|
/* Caller checks len */ |
673 |
|
|
void |
674 |
|
|
ieee80211_print_rsn(u_int8_t *data, u_int len) |
675 |
|
|
{ |
676 |
|
|
uint16_t version, nciphers, nakms, rsncap, npmk; |
677 |
|
|
int i, j; |
678 |
|
|
uint8_t selector[4]; |
679 |
|
|
|
680 |
|
|
if (len < 2) { |
681 |
|
|
ieee80211_print_element(data, len); |
682 |
|
|
return; |
683 |
|
|
} |
684 |
|
|
|
685 |
|
|
version = (data[0]) | (data[1] << 8); |
686 |
|
|
printf("=<version %d", version); |
687 |
|
|
|
688 |
|
|
if (len < 6) { |
689 |
|
|
printf(">"); |
690 |
|
|
return; |
691 |
|
|
} |
692 |
|
|
|
693 |
|
|
data += 2; |
694 |
|
|
printf(",groupcipher "); |
695 |
|
|
for (i = 0; i < 4; i++) |
696 |
|
|
selector[i] = data[i]; |
697 |
|
|
ieee80211_print_rsncipher(selector); |
698 |
|
|
|
699 |
|
|
if (len < 8) { |
700 |
|
|
printf(">"); |
701 |
|
|
return; |
702 |
|
|
} |
703 |
|
|
|
704 |
|
|
data += 4; |
705 |
|
|
nciphers = (data[0]) | ((data[1]) << 8); |
706 |
|
|
data += 2; |
707 |
|
|
|
708 |
|
|
if (len < 8 + (nciphers * 4)) { |
709 |
|
|
printf(">"); |
710 |
|
|
return; |
711 |
|
|
} |
712 |
|
|
|
713 |
|
|
printf(",cipher%s ", nciphers > 1 ? "s" : ""); |
714 |
|
|
for (i = 0; i < nciphers; i++) { |
715 |
|
|
for (j = 0; j < 4; j++) |
716 |
|
|
selector[j] = data[i + j]; |
717 |
|
|
ieee80211_print_rsncipher(selector); |
718 |
|
|
if (i < nciphers - 1) |
719 |
|
|
printf(" "); |
720 |
|
|
data += 4; |
721 |
|
|
} |
722 |
|
|
|
723 |
|
|
if (len < 8 + (nciphers * 4) + 2) { |
724 |
|
|
printf(">"); |
725 |
|
|
return; |
726 |
|
|
} |
727 |
|
|
|
728 |
|
|
nakms = (data[0]) | ((data[1]) << 8); |
729 |
|
|
data += 2; |
730 |
|
|
|
731 |
|
|
if (len < 8 + (nciphers * 4) + 2 + (nakms * 4)) { |
732 |
|
|
printf(">"); |
733 |
|
|
return; |
734 |
|
|
} |
735 |
|
|
|
736 |
|
|
printf(",akm%s ", nakms > 1 ? "s" : ""); |
737 |
|
|
for (i = 0; i < nciphers; i++) { |
738 |
|
|
for (j = 0; j < 4; j++) |
739 |
|
|
selector[j] = data[i + j]; |
740 |
|
|
ieee80211_print_akm(selector); |
741 |
|
|
if (i < nciphers - 1) |
742 |
|
|
printf(" "); |
743 |
|
|
data += 4; |
744 |
|
|
} |
745 |
|
|
|
746 |
|
|
if (len < 8 + (nciphers * 4) + 2 + (nakms * 4) + 2) { |
747 |
|
|
printf(">"); |
748 |
|
|
return; |
749 |
|
|
} |
750 |
|
|
|
751 |
|
|
rsncap = (data[0]) | ((data[1]) << 8); |
752 |
|
|
printf(",rsncap 0x%x", rsncap); |
753 |
|
|
data += 2; |
754 |
|
|
|
755 |
|
|
if (len < 8 + (nciphers * 4) + 2 + (nakms * 4) + 2 + 2) { |
756 |
|
|
printf(">"); |
757 |
|
|
return; |
758 |
|
|
} |
759 |
|
|
|
760 |
|
|
npmk = (data[0]) | ((data[1]) << 8); |
761 |
|
|
data += 2; |
762 |
|
|
|
763 |
|
|
if (len < 8 + (nciphers * 4) + 2 + (nakms * 4) + 2 + 2 + |
764 |
|
|
(npmk * IEEE80211_PMKID_LEN)) { |
765 |
|
|
printf(">"); |
766 |
|
|
return; |
767 |
|
|
} |
768 |
|
|
|
769 |
|
|
if (npmk >= 1) |
770 |
|
|
printf(",pmkid%s ", npmk > 1 ? "s" : ""); |
771 |
|
|
for (i = 0; i < npmk; i++) { |
772 |
|
|
printf("0x"); |
773 |
|
|
for (j = 0; j < IEEE80211_PMKID_LEN; j++) |
774 |
|
|
printf("%x", data[i + j]); |
775 |
|
|
if (i < npmk - 1) |
776 |
|
|
printf(" "); |
777 |
|
|
data += IEEE80211_PMKID_LEN; |
778 |
|
|
} |
779 |
|
|
|
780 |
|
|
if (len < 8 + (nciphers * 4) + 2 + (nakms * 4) + 2 + 2 + |
781 |
|
|
(npmk * IEEE80211_PMKID_LEN) + 4) { |
782 |
|
|
printf(">"); |
783 |
|
|
return; |
784 |
|
|
} |
785 |
|
|
|
786 |
|
|
printf(",integrity-groupcipher "); |
787 |
|
|
for (i = 0; i < 4; i++) |
788 |
|
|
selector[i] = data[i]; |
789 |
|
|
ieee80211_print_rsncipher(selector); |
790 |
|
|
|
791 |
|
|
printf(">"); |
792 |
|
|
} |
793 |
|
|
|
794 |
|
|
int |
795 |
|
|
ieee80211_print_beacon(struct ieee80211_frame *wh, u_int len) |
796 |
|
|
{ |
797 |
|
|
uint64_t tstamp; |
798 |
|
|
uint16_t bintval, capinfo; |
799 |
|
|
uint8_t *frm; |
800 |
|
|
|
801 |
|
|
if (len < sizeof(tstamp) + sizeof(bintval) + sizeof(capinfo)) |
802 |
|
|
return 1; /* truncated */ |
803 |
|
|
|
804 |
|
|
frm = (u_int8_t *)&wh[1]; |
805 |
|
|
|
806 |
|
|
bcopy(frm, &tstamp, sizeof(u_int64_t)); |
807 |
|
|
frm += 8; |
808 |
|
|
if (vflag > 1) |
809 |
|
|
printf(", timestamp %llu", letoh64(tstamp)); |
810 |
|
|
|
811 |
|
|
bcopy(frm, &bintval, sizeof(u_int16_t)); |
812 |
|
|
frm += 2; |
813 |
|
|
if (vflag > 1) |
814 |
|
|
printf(", interval %u", letoh16(bintval)); |
815 |
|
|
|
816 |
|
|
bcopy(frm, &capinfo, sizeof(u_int16_t)); |
817 |
|
|
frm += 2; |
818 |
|
|
if (vflag) |
819 |
|
|
printb(", caps", letoh16(capinfo), IEEE80211_CAPINFO_BITS); |
820 |
|
|
|
821 |
|
|
return ieee80211_print_elements(frm); |
822 |
|
|
} |
823 |
|
|
|
824 |
|
|
int |
825 |
|
|
ieee80211_print_assocreq(struct ieee80211_frame *wh, u_int len) |
826 |
|
|
{ |
827 |
|
|
uint8_t subtype; |
828 |
|
|
uint16_t capinfo, lintval; |
829 |
|
|
uint8_t *frm; |
830 |
|
|
|
831 |
|
|
subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; |
832 |
|
|
|
833 |
|
|
if (len < sizeof(capinfo) + sizeof(lintval) + |
834 |
|
|
(subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ ? |
835 |
|
|
IEEE80211_ADDR_LEN : 0)) |
836 |
|
|
return 1; /* truncated */ |
837 |
|
|
|
838 |
|
|
frm = (u_int8_t *)&wh[1]; |
839 |
|
|
|
840 |
|
|
bcopy(frm, &capinfo, sizeof(u_int16_t)); |
841 |
|
|
frm += 2; |
842 |
|
|
if (vflag) |
843 |
|
|
printb(", caps", letoh16(capinfo), IEEE80211_CAPINFO_BITS); |
844 |
|
|
|
845 |
|
|
bcopy(frm, &lintval, sizeof(u_int16_t)); |
846 |
|
|
frm += 2; |
847 |
|
|
if (vflag > 1) |
848 |
|
|
printf(", listen interval %u", letoh16(lintval)); |
849 |
|
|
|
850 |
|
|
if (subtype == IEEE80211_FC0_SUBTYPE_REASSOC_REQ) { |
851 |
|
|
if (vflag) |
852 |
|
|
printf(", AP %s", etheraddr_string(frm)); |
853 |
|
|
frm += IEEE80211_ADDR_LEN; |
854 |
|
|
} |
855 |
|
|
|
856 |
|
|
return ieee80211_print_elements(frm); |
857 |
|
|
} |
858 |
|
|
|
859 |
|
|
int |
860 |
|
|
ieee80211_print_elements(uint8_t *frm) |
861 |
|
|
{ |
862 |
|
|
int i; |
863 |
|
|
|
864 |
|
|
while (TTEST2(*frm, 2)) { |
865 |
|
|
u_int len = frm[1]; |
866 |
|
|
u_int8_t *data = frm + 2; |
867 |
|
|
|
868 |
|
|
if (!TTEST2(*data, len)) |
869 |
|
|
break; |
870 |
|
|
|
871 |
|
|
#define ELEM_CHECK(l) if (len != l) goto trunc |
872 |
|
|
|
873 |
|
|
switch (*frm) { |
874 |
|
|
case IEEE80211_ELEMID_SSID: |
875 |
|
|
printf(", ssid"); |
876 |
|
|
ieee80211_print_essid(data, len); |
877 |
|
|
break; |
878 |
|
|
case IEEE80211_ELEMID_RATES: |
879 |
|
|
printf(", rates"); |
880 |
|
|
if (!vflag) |
881 |
|
|
break; |
882 |
|
|
for (i = len; i > 0; i--, data++) |
883 |
|
|
printf(" %uM%s", |
884 |
|
|
(data[0] & IEEE80211_RATE_VAL) / 2, |
885 |
|
|
(data[0] & IEEE80211_RATE_BASIC |
886 |
|
|
? "*" : "")); |
887 |
|
|
break; |
888 |
|
|
case IEEE80211_ELEMID_FHPARMS: |
889 |
|
|
ELEM_CHECK(5); |
890 |
|
|
printf(", fh (dwell %u, chan %u, index %u)", |
891 |
|
|
(data[1] << 8) | data[0], |
892 |
|
|
(data[2] - 1) * 80 + data[3], /* FH_CHAN */ |
893 |
|
|
data[4]); |
894 |
|
|
break; |
895 |
|
|
case IEEE80211_ELEMID_DSPARMS: |
896 |
|
|
ELEM_CHECK(1); |
897 |
|
|
printf(", ds"); |
898 |
|
|
if (vflag) |
899 |
|
|
printf(" (chan %u)", data[0]); |
900 |
|
|
break; |
901 |
|
|
case IEEE80211_ELEMID_CFPARMS: |
902 |
|
|
printf(", cf"); |
903 |
|
|
if (vflag) |
904 |
|
|
ieee80211_print_element(data, len); |
905 |
|
|
break; |
906 |
|
|
case IEEE80211_ELEMID_TIM: |
907 |
|
|
printf(", tim"); |
908 |
|
|
if (vflag) |
909 |
|
|
ieee80211_print_element(data, len); |
910 |
|
|
break; |
911 |
|
|
case IEEE80211_ELEMID_IBSSPARMS: |
912 |
|
|
printf(", ibss"); |
913 |
|
|
if (vflag) |
914 |
|
|
ieee80211_print_element(data, len); |
915 |
|
|
break; |
916 |
|
|
case IEEE80211_ELEMID_COUNTRY: |
917 |
|
|
printf(", country"); |
918 |
|
|
if (vflag) |
919 |
|
|
ieee80211_print_country(data, len); |
920 |
|
|
break; |
921 |
|
|
case IEEE80211_ELEMID_CHALLENGE: |
922 |
|
|
printf(", challenge"); |
923 |
|
|
if (vflag) |
924 |
|
|
ieee80211_print_element(data, len); |
925 |
|
|
break; |
926 |
|
|
case IEEE80211_ELEMID_CSA: |
927 |
|
|
ELEM_CHECK(3); |
928 |
|
|
printf(", csa (chan %u count %u%s)", data[1], data[2], |
929 |
|
|
(data[0] == 1) ? " noTX" : ""); |
930 |
|
|
break; |
931 |
|
|
case IEEE80211_ELEMID_ERP: |
932 |
|
|
printf(", erp"); |
933 |
|
|
if (vflag) |
934 |
|
|
ieee80211_print_element(data, len); |
935 |
|
|
break; |
936 |
|
|
case IEEE80211_ELEMID_RSN: |
937 |
|
|
printf(", rsn"); |
938 |
|
|
if (vflag) |
939 |
|
|
ieee80211_print_rsn(data, len); |
940 |
|
|
break; |
941 |
|
|
case IEEE80211_ELEMID_XRATES: |
942 |
|
|
printf(", xrates"); |
943 |
|
|
if (!vflag) |
944 |
|
|
break; |
945 |
|
|
for (i = len; i > 0; i--, data++) |
946 |
|
|
printf(" %uM", |
947 |
|
|
(data[0] & IEEE80211_RATE_VAL) / 2); |
948 |
|
|
break; |
949 |
|
|
case IEEE80211_ELEMID_TPC_REPORT: |
950 |
|
|
printf(", tpcreport"); |
951 |
|
|
if (vflag) |
952 |
|
|
ieee80211_print_element(data, len); |
953 |
|
|
break; |
954 |
|
|
case IEEE80211_ELEMID_TPC_REQUEST: |
955 |
|
|
printf(", tpcrequest"); |
956 |
|
|
if (vflag) |
957 |
|
|
ieee80211_print_element(data, len); |
958 |
|
|
break; |
959 |
|
|
case IEEE80211_ELEMID_HTCAPS: |
960 |
|
|
printf(", htcaps"); |
961 |
|
|
if (vflag) |
962 |
|
|
ieee80211_print_htcaps(data, len); |
963 |
|
|
break; |
964 |
|
|
case IEEE80211_ELEMID_HTOP: |
965 |
|
|
printf(", htop"); |
966 |
|
|
if (vflag) |
967 |
|
|
ieee80211_print_htop(data, len); |
968 |
|
|
break; |
969 |
|
|
case IEEE80211_ELEMID_POWER_CONSTRAINT: |
970 |
|
|
ELEM_CHECK(1); |
971 |
|
|
printf(", power constraint %udB", data[0]); |
972 |
|
|
break; |
973 |
|
|
case IEEE80211_ELEMID_QBSS_LOAD: |
974 |
|
|
ELEM_CHECK(5); |
975 |
|
|
printf(", %u stations, %d%% utilization, " |
976 |
|
|
"admission capacity %uus/s", |
977 |
|
|
(data[0] | data[1] << 8), |
978 |
|
|
(data[2] * 100) / 255, |
979 |
|
|
(data[3] | data[4] << 8) / 32); |
980 |
|
|
break; |
981 |
|
|
case IEEE80211_ELEMID_VENDOR: |
982 |
|
|
printf(", vendor"); |
983 |
|
|
if (vflag) |
984 |
|
|
ieee80211_print_element(data, len); |
985 |
|
|
break; |
986 |
|
|
default: |
987 |
|
|
printf(", %u:%u", (u_int) *frm, len); |
988 |
|
|
if (vflag) |
989 |
|
|
ieee80211_print_element(data, len); |
990 |
|
|
break; |
991 |
|
|
} |
992 |
|
|
frm += len + 2; |
993 |
|
|
|
994 |
|
|
if (frm >= snapend) |
995 |
|
|
break; |
996 |
|
|
} |
997 |
|
|
|
998 |
|
|
#undef ELEM_CHECK |
999 |
|
|
|
1000 |
|
|
return (0); |
1001 |
|
|
|
1002 |
|
|
trunc: |
1003 |
|
|
/* Truncated elements in frame */ |
1004 |
|
|
return (1); |
1005 |
|
|
} |
1006 |
|
|
|
1007 |
|
|
int |
1008 |
|
|
ieee80211_frame(struct ieee80211_frame *wh, u_int len) |
1009 |
|
|
{ |
1010 |
|
|
u_int8_t subtype, type, *frm; |
1011 |
|
|
|
1012 |
|
|
TCARR(wh->i_fc); |
1013 |
|
|
|
1014 |
|
|
type = wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK; |
1015 |
|
|
subtype = wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK; |
1016 |
|
|
|
1017 |
|
|
frm = (u_int8_t *)&wh[1]; |
1018 |
|
|
|
1019 |
|
|
if (vflag) |
1020 |
|
|
printb(" flags", wh->i_fc[1], IEEE80211_FC1_BITS); |
1021 |
|
|
|
1022 |
|
|
switch (type) { |
1023 |
|
|
case IEEE80211_FC0_TYPE_DATA: |
1024 |
|
|
printf(": %s: ", ieee80211_data_subtype_name[ |
1025 |
|
|
subtype >> IEEE80211_FC0_SUBTYPE_SHIFT]); |
1026 |
|
|
ieee80211_data(wh, len); |
1027 |
|
|
break; |
1028 |
|
|
case IEEE80211_FC0_TYPE_MGT: |
1029 |
|
|
printf(": %s", ieee80211_mgt_subtype_name[ |
1030 |
|
|
subtype >> IEEE80211_FC0_SUBTYPE_SHIFT]); |
1031 |
|
|
switch (subtype) { |
1032 |
|
|
case IEEE80211_FC0_SUBTYPE_BEACON: |
1033 |
|
|
case IEEE80211_FC0_SUBTYPE_PROBE_RESP: |
1034 |
|
|
if (ieee80211_print_beacon(wh, len) != 0) |
1035 |
|
|
goto trunc; |
1036 |
|
|
break; |
1037 |
|
|
case IEEE80211_FC0_SUBTYPE_ASSOC_REQ: |
1038 |
|
|
case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: |
1039 |
|
|
if (ieee80211_print_assocreq(wh, len) != 0) |
1040 |
|
|
goto trunc; |
1041 |
|
|
break; |
1042 |
|
|
case IEEE80211_FC0_SUBTYPE_AUTH: |
1043 |
|
|
TCHECK2(*frm, 2); /* Auth Algorithm */ |
1044 |
|
|
switch (IEEE80211_AUTH_ALGORITHM(frm)) { |
1045 |
|
|
case IEEE80211_AUTH_ALG_OPEN: |
1046 |
|
|
TCHECK2(*frm, 4); /* Auth Transaction */ |
1047 |
|
|
switch (IEEE80211_AUTH_TRANSACTION(frm)) { |
1048 |
|
|
case IEEE80211_AUTH_OPEN_REQUEST: |
1049 |
|
|
printf(" request"); |
1050 |
|
|
break; |
1051 |
|
|
case IEEE80211_AUTH_OPEN_RESPONSE: |
1052 |
|
|
printf(" response"); |
1053 |
|
|
break; |
1054 |
|
|
} |
1055 |
|
|
break; |
1056 |
|
|
case IEEE80211_AUTH_ALG_SHARED: |
1057 |
|
|
TCHECK2(*frm, 4); /* Auth Transaction */ |
1058 |
|
|
switch (IEEE80211_AUTH_TRANSACTION(frm)) { |
1059 |
|
|
case IEEE80211_AUTH_SHARED_REQUEST: |
1060 |
|
|
printf(" request"); |
1061 |
|
|
break; |
1062 |
|
|
case IEEE80211_AUTH_SHARED_CHALLENGE: |
1063 |
|
|
printf(" challenge"); |
1064 |
|
|
break; |
1065 |
|
|
case IEEE80211_AUTH_SHARED_RESPONSE: |
1066 |
|
|
printf(" response"); |
1067 |
|
|
break; |
1068 |
|
|
case IEEE80211_AUTH_SHARED_PASS: |
1069 |
|
|
printf(" pass"); |
1070 |
|
|
break; |
1071 |
|
|
} |
1072 |
|
|
break; |
1073 |
|
|
case IEEE80211_AUTH_ALG_LEAP: |
1074 |
|
|
printf(" (leap)"); |
1075 |
|
|
break; |
1076 |
|
|
} |
1077 |
|
|
break; |
1078 |
|
|
case IEEE80211_FC0_SUBTYPE_DEAUTH: |
1079 |
|
|
case IEEE80211_FC0_SUBTYPE_DISASSOC: |
1080 |
|
|
TCHECK2(*frm, 2); /* Reason Code */ |
1081 |
|
|
ieee80211_reason(frm[0] | (frm[1] << 8)); |
1082 |
|
|
break; |
1083 |
|
|
} |
1084 |
|
|
break; |
1085 |
|
|
case IEEE80211_FC0_TYPE_CTL: { |
1086 |
|
|
u_int8_t *t = (u_int8_t *) wh; |
1087 |
|
|
|
1088 |
|
|
printf(": %s", ieee80211_ctl_subtype_name[ |
1089 |
|
|
subtype >> IEEE80211_FC0_SUBTYPE_SHIFT]); |
1090 |
|
|
if (!vflag) |
1091 |
|
|
break; |
1092 |
|
|
|
1093 |
|
|
/* See 802.11 2012 "8.3.1 Control frames". */ |
1094 |
|
|
t += 2; /* skip Frame Control */ |
1095 |
|
|
switch (subtype) { |
1096 |
|
|
case IEEE80211_FC0_SUBTYPE_RTS: |
1097 |
|
|
case IEEE80211_FC0_SUBTYPE_BAR: |
1098 |
|
|
case IEEE80211_FC0_SUBTYPE_BA: |
1099 |
|
|
TCHECK2(*t, 2); /* Duration */ |
1100 |
|
|
printf(", duration %dus", (t[0] | t[1] << 8)); |
1101 |
|
|
t += 2; |
1102 |
|
|
TCHECK2(*t, 6); /* RA */ |
1103 |
|
|
printf(", ra %s", etheraddr_string(t)); |
1104 |
|
|
t += 6; |
1105 |
|
|
TCHECK2(*t, 6); /* TA */ |
1106 |
|
|
printf(", ta %s", etheraddr_string(t)); |
1107 |
|
|
if (subtype == IEEE80211_FC0_SUBTYPE_BAR || |
1108 |
|
|
subtype == IEEE80211_FC0_SUBTYPE_BA) { |
1109 |
|
|
u_int16_t ctrl; |
1110 |
|
|
|
1111 |
|
|
t += 6; |
1112 |
|
|
TCHECK2(*t, 2); /* BAR/BA control */ |
1113 |
|
|
ctrl = t[0] | (t[1] << 8); |
1114 |
|
|
if (ctrl & IEEE80211_BA_ACK_POLICY) |
1115 |
|
|
printf(", no ack"); |
1116 |
|
|
else |
1117 |
|
|
printf(", normal ack"); |
1118 |
|
|
if ((ctrl & IEEE80211_BA_MULTI_TID) == 0 && |
1119 |
|
|
(ctrl & IEEE80211_BA_COMPRESSED) == 0) |
1120 |
|
|
printf(", basic variant"); |
1121 |
|
|
else if ((ctrl & IEEE80211_BA_MULTI_TID) && |
1122 |
|
|
(ctrl & IEEE80211_BA_COMPRESSED)) |
1123 |
|
|
printf(", multi-tid variant"); |
1124 |
|
|
else if (ctrl & IEEE80211_BA_COMPRESSED) |
1125 |
|
|
printf(", compressed variant"); |
1126 |
|
|
} |
1127 |
|
|
break; |
1128 |
|
|
case IEEE80211_FC0_SUBTYPE_CTS: |
1129 |
|
|
case IEEE80211_FC0_SUBTYPE_ACK: |
1130 |
|
|
TCHECK2(*t, 2); /* Duration */ |
1131 |
|
|
printf(", duration %dus", (t[0] | t[1] << 8)); |
1132 |
|
|
t += 2; |
1133 |
|
|
TCHECK2(*t, 6); /* RA */ |
1134 |
|
|
printf(", ra %s", etheraddr_string(t)); |
1135 |
|
|
break; |
1136 |
|
|
case IEEE80211_FC0_SUBTYPE_PS_POLL: |
1137 |
|
|
TCHECK2(*t, 2); /* AID */ |
1138 |
|
|
printf(", aid 0x%x", (t[0] | t[1] << 8)); |
1139 |
|
|
t += 2; |
1140 |
|
|
TCHECK2(*t, 6); /* BSSID(RA) */ |
1141 |
|
|
printf(", ra %s", etheraddr_string(t)); |
1142 |
|
|
t += 6; |
1143 |
|
|
TCHECK2(*t, 6); /* TA */ |
1144 |
|
|
printf(", ta %s", etheraddr_string(t)); |
1145 |
|
|
break; |
1146 |
|
|
} |
1147 |
|
|
break; |
1148 |
|
|
} |
1149 |
|
|
default: |
1150 |
|
|
printf(": type#%d", type); |
1151 |
|
|
break; |
1152 |
|
|
} |
1153 |
|
|
|
1154 |
|
|
return (0); |
1155 |
|
|
|
1156 |
|
|
trunc: |
1157 |
|
|
/* Truncated 802.11 frame */ |
1158 |
|
|
return (1); |
1159 |
|
|
} |
1160 |
|
|
|
1161 |
|
|
u_int |
1162 |
|
|
ieee80211_any2ieee(u_int freq, u_int flags) |
1163 |
|
|
{ |
1164 |
|
|
if (flags & IEEE80211_CHAN_2GHZ) { |
1165 |
|
|
if (freq == 2484) |
1166 |
|
|
return 14; |
1167 |
|
|
if (freq < 2484) |
1168 |
|
|
return (freq - 2407) / 5; |
1169 |
|
|
else |
1170 |
|
|
return 15 + ((freq - 2512) / 20); |
1171 |
|
|
} else if (flags & IEEE80211_CHAN_5GHZ) { |
1172 |
|
|
return (freq - 5000) / 5; |
1173 |
|
|
} else { |
1174 |
|
|
/* Assume channel is already an IEEE number */ |
1175 |
|
|
return (freq); |
1176 |
|
|
} |
1177 |
|
|
} |
1178 |
|
|
|
1179 |
|
|
int |
1180 |
|
|
ieee80211_print(struct ieee80211_frame *wh, u_int len) |
1181 |
|
|
{ |
1182 |
|
|
if (eflag) |
1183 |
|
|
if (ieee80211_hdr(wh)) |
1184 |
|
|
return (1); |
1185 |
|
|
|
1186 |
|
|
printf("802.11"); |
1187 |
|
|
|
1188 |
|
|
return (ieee80211_frame(wh, len)); |
1189 |
|
|
} |
1190 |
|
|
|
1191 |
|
|
void |
1192 |
|
|
ieee802_11_if_print(u_char *user, const struct pcap_pkthdr *h, |
1193 |
|
|
const u_char *p) |
1194 |
|
|
{ |
1195 |
|
|
struct ieee80211_frame *wh = (struct ieee80211_frame*)p; |
1196 |
|
|
|
1197 |
|
|
if (!ieee80211_encap) |
1198 |
|
|
ts_print(&h->ts); |
1199 |
|
|
|
1200 |
|
|
packetp = p; |
1201 |
|
|
snapend = p + h->caplen; |
1202 |
|
|
|
1203 |
|
|
if (ieee80211_print(wh, (u_int)h->len) != 0) |
1204 |
|
|
printf("[|802.11]"); |
1205 |
|
|
|
1206 |
|
|
if (!ieee80211_encap) { |
1207 |
|
|
if (xflag) |
1208 |
|
|
default_print(p, (u_int)h->len); |
1209 |
|
|
putchar('\n'); |
1210 |
|
|
} |
1211 |
|
|
} |
1212 |
|
|
|
1213 |
|
|
void |
1214 |
|
|
ieee802_11_radio_if_print(u_char *user, const struct pcap_pkthdr *h, |
1215 |
|
|
const u_char *p) |
1216 |
|
|
{ |
1217 |
|
|
struct ieee80211_radiotap_header *rh = |
1218 |
|
|
(struct ieee80211_radiotap_header*)p; |
1219 |
|
|
struct ieee80211_frame *wh; |
1220 |
|
|
u_int8_t *t; |
1221 |
|
|
u_int32_t present; |
1222 |
|
|
u_int len, rh_len; |
1223 |
|
|
u_int16_t tmp; |
1224 |
|
|
|
1225 |
|
|
if (!ieee80211_encap) |
1226 |
|
|
ts_print(&h->ts); |
1227 |
|
|
|
1228 |
|
|
packetp = p; |
1229 |
|
|
snapend = p + h->caplen; |
1230 |
|
|
|
1231 |
|
|
TCHECK(*rh); |
1232 |
|
|
|
1233 |
|
|
len = h->len; |
1234 |
|
|
rh_len = letoh16(rh->it_len); |
1235 |
|
|
if (rh->it_version != 0) { |
1236 |
|
|
printf("[?radiotap + 802.11 v:%u]", rh->it_version); |
1237 |
|
|
goto out; |
1238 |
|
|
} |
1239 |
|
|
|
1240 |
|
|
wh = (struct ieee80211_frame *)(p + rh_len); |
1241 |
|
|
if (len <= rh_len || ieee80211_print(wh, len - rh_len)) |
1242 |
|
|
printf("[|802.11]"); |
1243 |
|
|
|
1244 |
|
|
t = (u_int8_t*)p + sizeof(struct ieee80211_radiotap_header); |
1245 |
|
|
|
1246 |
|
|
if ((present = letoh32(rh->it_present)) == 0) |
1247 |
|
|
goto out; |
1248 |
|
|
|
1249 |
|
|
printf(", <radiotap v%u", rh->it_version); |
1250 |
|
|
|
1251 |
|
|
#define RADIOTAP(_x) \ |
1252 |
|
|
(present & (1 << IEEE80211_RADIOTAP_##_x)) |
1253 |
|
|
|
1254 |
|
|
if (RADIOTAP(TSFT)) { |
1255 |
|
|
u_int64_t tsf; |
1256 |
|
|
|
1257 |
|
|
TCHECK2(*t, 8); |
1258 |
|
|
bcopy(t, &tsf, sizeof(u_int64_t)); |
1259 |
|
|
if (vflag > 1) |
1260 |
|
|
printf(", tsf %llu", letoh64(tsf)); |
1261 |
|
|
t += 8; |
1262 |
|
|
} |
1263 |
|
|
|
1264 |
|
|
if (RADIOTAP(FLAGS)) { |
1265 |
|
|
u_int8_t flags = *(u_int8_t*)t; |
1266 |
|
|
TCHECK2(*t, 1); |
1267 |
|
|
|
1268 |
|
|
if (flags & IEEE80211_RADIOTAP_F_CFP) |
1269 |
|
|
printf(", CFP"); |
1270 |
|
|
if (flags & IEEE80211_RADIOTAP_F_SHORTPRE) |
1271 |
|
|
printf(", SHORTPRE"); |
1272 |
|
|
if (flags & IEEE80211_RADIOTAP_F_WEP) |
1273 |
|
|
printf(", WEP"); |
1274 |
|
|
if (flags & IEEE80211_RADIOTAP_F_FRAG) |
1275 |
|
|
printf(", FRAG"); |
1276 |
|
|
t += 1; |
1277 |
|
|
} |
1278 |
|
|
|
1279 |
|
|
if (RADIOTAP(RATE)) { |
1280 |
|
|
TCHECK2(*t, 1); |
1281 |
|
|
if (vflag) { |
1282 |
|
|
uint8_t rate = *(u_int8_t*)t; |
1283 |
|
|
if (rate & 0x80) |
1284 |
|
|
printf(", MCS %u", rate & 0x7f); |
1285 |
|
|
else |
1286 |
|
|
printf(", %uMbit/s", rate / 2); |
1287 |
|
|
} |
1288 |
|
|
t += 1; |
1289 |
|
|
} |
1290 |
|
|
|
1291 |
|
|
if (RADIOTAP(CHANNEL)) { |
1292 |
|
|
u_int16_t freq, flags; |
1293 |
|
|
TCHECK2(*t, 2); |
1294 |
|
|
|
1295 |
|
|
bcopy(t, &freq, sizeof(u_int16_t)); |
1296 |
|
|
freq = letoh16(freq); |
1297 |
|
|
t += 2; |
1298 |
|
|
TCHECK2(*t, 2); |
1299 |
|
|
bcopy(t, &flags, sizeof(u_int16_t)); |
1300 |
|
|
flags = letoh16(flags); |
1301 |
|
|
t += 2; |
1302 |
|
|
|
1303 |
|
|
printf(", chan %u", ieee80211_any2ieee(freq, flags)); |
1304 |
|
|
|
1305 |
|
|
if (flags & IEEE80211_CHAN_HT) |
1306 |
|
|
printf(", 11n"); |
1307 |
|
|
else if (flags & IEEE80211_CHAN_DYN && |
1308 |
|
|
flags & IEEE80211_CHAN_2GHZ) |
1309 |
|
|
printf(", 11g"); |
1310 |
|
|
else if (flags & IEEE80211_CHAN_CCK && |
1311 |
|
|
flags & IEEE80211_CHAN_2GHZ) |
1312 |
|
|
printf(", 11b"); |
1313 |
|
|
else if (flags & IEEE80211_CHAN_OFDM && |
1314 |
|
|
flags & IEEE80211_CHAN_2GHZ) |
1315 |
|
|
printf(", 11G"); |
1316 |
|
|
else if (flags & IEEE80211_CHAN_OFDM && |
1317 |
|
|
flags & IEEE80211_CHAN_5GHZ) |
1318 |
|
|
printf(", 11a"); |
1319 |
|
|
|
1320 |
|
|
if (flags & IEEE80211_CHAN_XR) |
1321 |
|
|
printf(", XR"); |
1322 |
|
|
} |
1323 |
|
|
|
1324 |
|
|
if (RADIOTAP(FHSS)) { |
1325 |
|
|
TCHECK2(*t, 2); |
1326 |
|
|
printf(", fhss %u/%u", *(u_int8_t*)t, *(u_int8_t*)t + 1); |
1327 |
|
|
t += 2; |
1328 |
|
|
} |
1329 |
|
|
|
1330 |
|
|
if (RADIOTAP(DBM_ANTSIGNAL)) { |
1331 |
|
|
TCHECK(*t); |
1332 |
|
|
printf(", sig %ddBm", *(int8_t*)t); |
1333 |
|
|
t += 1; |
1334 |
|
|
} |
1335 |
|
|
|
1336 |
|
|
if (RADIOTAP(DBM_ANTNOISE)) { |
1337 |
|
|
TCHECK(*t); |
1338 |
|
|
printf(", noise %ddBm", *(int8_t*)t); |
1339 |
|
|
t += 1; |
1340 |
|
|
} |
1341 |
|
|
|
1342 |
|
|
if (RADIOTAP(LOCK_QUALITY)) { |
1343 |
|
|
TCHECK2(*t, 2); |
1344 |
|
|
if (vflag) { |
1345 |
|
|
bcopy(t, &tmp, sizeof(u_int16_t)); |
1346 |
|
|
printf(", quality %u", letoh16(tmp)); |
1347 |
|
|
} |
1348 |
|
|
t += 2; |
1349 |
|
|
} |
1350 |
|
|
|
1351 |
|
|
if (RADIOTAP(TX_ATTENUATION)) { |
1352 |
|
|
TCHECK2(*t, 2); |
1353 |
|
|
if (vflag) { |
1354 |
|
|
bcopy(t, &tmp, sizeof(u_int16_t)); |
1355 |
|
|
printf(", txatt %u", letoh16(tmp)); |
1356 |
|
|
} |
1357 |
|
|
t += 2; |
1358 |
|
|
} |
1359 |
|
|
|
1360 |
|
|
if (RADIOTAP(DB_TX_ATTENUATION)) { |
1361 |
|
|
TCHECK2(*t, 2); |
1362 |
|
|
if (vflag) { |
1363 |
|
|
bcopy(t, &tmp, sizeof(u_int16_t)); |
1364 |
|
|
printf(", txatt %udB", letoh16(tmp)); |
1365 |
|
|
} |
1366 |
|
|
t += 2; |
1367 |
|
|
} |
1368 |
|
|
|
1369 |
|
|
if (RADIOTAP(DBM_TX_POWER)) { |
1370 |
|
|
TCHECK(*t); |
1371 |
|
|
printf(", txpower %ddBm", *(int8_t*)t); |
1372 |
|
|
t += 1; |
1373 |
|
|
} |
1374 |
|
|
|
1375 |
|
|
if (RADIOTAP(ANTENNA)) { |
1376 |
|
|
TCHECK(*t); |
1377 |
|
|
if (vflag) |
1378 |
|
|
printf(", antenna %u", *(u_int8_t*)t); |
1379 |
|
|
t += 1; |
1380 |
|
|
} |
1381 |
|
|
|
1382 |
|
|
if (RADIOTAP(DB_ANTSIGNAL)) { |
1383 |
|
|
TCHECK(*t); |
1384 |
|
|
printf(", signal %udB", *(u_int8_t*)t); |
1385 |
|
|
t += 1; |
1386 |
|
|
} |
1387 |
|
|
|
1388 |
|
|
if (RADIOTAP(DB_ANTNOISE)) { |
1389 |
|
|
TCHECK(*t); |
1390 |
|
|
printf(", noise %udB", *(u_int8_t*)t); |
1391 |
|
|
t += 1; |
1392 |
|
|
} |
1393 |
|
|
|
1394 |
|
|
if (RADIOTAP(FCS)) { |
1395 |
|
|
TCHECK2(*t, 4); |
1396 |
|
|
if (vflag) { |
1397 |
|
|
u_int32_t fcs; |
1398 |
|
|
bcopy(t, &fcs, sizeof(u_int32_t)); |
1399 |
|
|
printf(", fcs %08x", letoh32(fcs)); |
1400 |
|
|
} |
1401 |
|
|
t += 4; |
1402 |
|
|
} |
1403 |
|
|
|
1404 |
|
|
if (RADIOTAP(RSSI)) { |
1405 |
|
|
u_int8_t rssi, max_rssi; |
1406 |
|
|
TCHECK(*t); |
1407 |
|
|
rssi = *(u_int8_t*)t; |
1408 |
|
|
t += 1; |
1409 |
|
|
TCHECK(*t); |
1410 |
|
|
max_rssi = *(u_int8_t*)t; |
1411 |
|
|
t += 1; |
1412 |
|
|
|
1413 |
|
|
printf(", rssi %u/%u", rssi, max_rssi); |
1414 |
|
|
} |
1415 |
|
|
|
1416 |
|
|
#undef RADIOTAP |
1417 |
|
|
|
1418 |
|
|
putchar('>'); |
1419 |
|
|
goto out; |
1420 |
|
|
|
1421 |
|
|
trunc: |
1422 |
|
|
/* Truncated frame */ |
1423 |
|
|
printf("[|radiotap + 802.11]"); |
1424 |
|
|
|
1425 |
|
|
out: |
1426 |
|
|
if (!ieee80211_encap) { |
1427 |
|
|
if (xflag) |
1428 |
|
|
default_print(p, h->len); |
1429 |
|
|
putchar('\n'); |
1430 |
|
|
} |
1431 |
|
|
} |
1432 |
|
|
|
1433 |
|
|
void |
1434 |
|
|
ieee80211_reason(u_int16_t reason) |
1435 |
|
|
{ |
1436 |
|
|
if (!vflag) |
1437 |
|
|
return; |
1438 |
|
|
|
1439 |
|
|
switch (reason) { |
1440 |
|
|
case IEEE80211_REASON_UNSPECIFIED: |
1441 |
|
|
printf(", unspecified failure"); |
1442 |
|
|
break; |
1443 |
|
|
case IEEE80211_REASON_AUTH_EXPIRE: |
1444 |
|
|
printf(", authentication expired"); |
1445 |
|
|
break; |
1446 |
|
|
case IEEE80211_REASON_AUTH_LEAVE: |
1447 |
|
|
printf(", deauth - station left"); |
1448 |
|
|
break; |
1449 |
|
|
case IEEE80211_REASON_ASSOC_EXPIRE: |
1450 |
|
|
printf(", association expired"); |
1451 |
|
|
break; |
1452 |
|
|
case IEEE80211_REASON_ASSOC_TOOMANY: |
1453 |
|
|
printf(", too many associated stations"); |
1454 |
|
|
break; |
1455 |
|
|
case IEEE80211_REASON_NOT_AUTHED: |
1456 |
|
|
printf(", not authenticated"); |
1457 |
|
|
break; |
1458 |
|
|
case IEEE80211_REASON_NOT_ASSOCED: |
1459 |
|
|
printf(", not associated"); |
1460 |
|
|
break; |
1461 |
|
|
case IEEE80211_REASON_ASSOC_LEAVE: |
1462 |
|
|
printf(", disassociated - station left"); |
1463 |
|
|
break; |
1464 |
|
|
case IEEE80211_REASON_ASSOC_NOT_AUTHED: |
1465 |
|
|
printf(", association but not authenticated"); |
1466 |
|
|
break; |
1467 |
|
|
case IEEE80211_REASON_RSN_REQUIRED: |
1468 |
|
|
printf(", rsn required"); |
1469 |
|
|
break; |
1470 |
|
|
case IEEE80211_REASON_RSN_INCONSISTENT: |
1471 |
|
|
printf(", rsn inconsistent"); |
1472 |
|
|
break; |
1473 |
|
|
case IEEE80211_REASON_IE_INVALID: |
1474 |
|
|
printf(", ie invalid"); |
1475 |
|
|
break; |
1476 |
|
|
case IEEE80211_REASON_MIC_FAILURE: |
1477 |
|
|
printf(", mic failure"); |
1478 |
|
|
break; |
1479 |
|
|
default: |
1480 |
|
|
printf(", unknown reason %u", reason); |
1481 |
|
|
} |
1482 |
|
|
} |