Index: head/contrib/tcpdump/ieee802_11.h =================================================================== --- head/contrib/tcpdump/ieee802_11.h (revision 195683) +++ head/contrib/tcpdump/ieee802_11.h (revision 195684) @@ -1,334 +1,353 @@ /* $FreeBSD$ */ /* @(#) $Header: /tcpdump/master/tcpdump/ieee802_11.h,v 1.12 2007-07-22 19:59:06 guy Exp $ (LBL) */ /* * Copyright (c) 2001 * Fortress Technologies * Charlie Lenahan ( clenahan@fortresstech.com ) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ /* Lengths of 802.11 header components. */ #define IEEE802_11_FC_LEN 2 #define IEEE802_11_DUR_LEN 2 #define IEEE802_11_DA_LEN 6 #define IEEE802_11_SA_LEN 6 #define IEEE802_11_BSSID_LEN 6 #define IEEE802_11_RA_LEN 6 #define IEEE802_11_TA_LEN 6 #define IEEE802_11_SEQ_LEN 2 #define IEEE802_11_CTL_LEN 2 #define IEEE802_11_IV_LEN 3 #define IEEE802_11_KID_LEN 1 /* Frame check sequence length. */ #define IEEE802_11_FCS_LEN 4 /* Lengths of beacon components. */ #define IEEE802_11_TSTAMP_LEN 8 #define IEEE802_11_BCNINT_LEN 2 #define IEEE802_11_CAPINFO_LEN 2 #define IEEE802_11_LISTENINT_LEN 2 #define IEEE802_11_AID_LEN 2 #define IEEE802_11_STATUS_LEN 2 #define IEEE802_11_REASON_LEN 2 /* Length of previous AP in reassocation frame */ #define IEEE802_11_AP_LEN 6 #define T_MGMT 0x0 /* management */ #define T_CTRL 0x1 /* control */ #define T_DATA 0x2 /* data */ #define T_RESV 0x3 /* reserved */ #define ST_ASSOC_REQUEST 0x0 #define ST_ASSOC_RESPONSE 0x1 #define ST_REASSOC_REQUEST 0x2 #define ST_REASSOC_RESPONSE 0x3 #define ST_PROBE_REQUEST 0x4 #define ST_PROBE_RESPONSE 0x5 /* RESERVED 0x6 */ /* RESERVED 0x7 */ #define ST_BEACON 0x8 #define ST_ATIM 0x9 #define ST_DISASSOC 0xA #define ST_AUTH 0xB #define ST_DEAUTH 0xC -/* RESERVED 0xD */ +#define ST_ACTION 0xD /* RESERVED 0xE */ /* RESERVED 0xF */ #define CTRL_BAR 0x8 +#define CTRL_BA 0x9 #define CTRL_PS_POLL 0xA #define CTRL_RTS 0xB #define CTRL_CTS 0xC #define CTRL_ACK 0xD #define CTRL_CF_END 0xE #define CTRL_END_ACK 0xF #define DATA_DATA 0x0 #define DATA_DATA_CF_ACK 0x1 #define DATA_DATA_CF_POLL 0x2 #define DATA_DATA_CF_ACK_POLL 0x3 #define DATA_NODATA 0x4 #define DATA_NODATA_CF_ACK 0x5 #define DATA_NODATA_CF_POLL 0x6 #define DATA_NODATA_CF_ACK_POLL 0x7 #define DATA_QOS_DATA 0x8 #define DATA_QOS_DATA_CF_ACK 0x9 #define DATA_QOS_DATA_CF_POLL 0xA #define DATA_QOS_DATA_CF_ACK_POLL 0xB #define DATA_QOS_NODATA 0xC #define DATA_QOS_CF_POLL_NODATA 0xE #define DATA_QOS_CF_ACK_POLL_NODATA 0xF /* * The subtype field of a data frame is, in effect, composed of 4 flag * bits - CF-Ack, CF-Poll, Null (means the frame doesn't actually have * any data), and QoS. */ #define DATA_FRAME_IS_CF_ACK(x) ((x) & 0x01) #define DATA_FRAME_IS_CF_POLL(x) ((x) & 0x02) #define DATA_FRAME_IS_NULL(x) ((x) & 0x04) #define DATA_FRAME_IS_QOS(x) ((x) & 0x08) /* * Bits in the frame control field. */ #define FC_VERSION(fc) ((fc) & 0x3) #define FC_TYPE(fc) (((fc) >> 2) & 0x3) #define FC_SUBTYPE(fc) (((fc) >> 4) & 0xF) #define FC_TO_DS(fc) ((fc) & 0x0100) #define FC_FROM_DS(fc) ((fc) & 0x0200) #define FC_MORE_FLAG(fc) ((fc) & 0x0400) #define FC_RETRY(fc) ((fc) & 0x0800) #define FC_POWER_MGMT(fc) ((fc) & 0x1000) #define FC_MORE_DATA(fc) ((fc) & 0x2000) #define FC_WEP(fc) ((fc) & 0x4000) #define FC_ORDER(fc) ((fc) & 0x8000) struct mgmt_header_t { u_int16_t fc; u_int16_t duration; u_int8_t da[6]; u_int8_t sa[6]; u_int8_t bssid[6]; u_int16_t seq_ctrl; }; #define MGMT_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ IEEE802_11_DA_LEN+IEEE802_11_SA_LEN+\ IEEE802_11_BSSID_LEN+IEEE802_11_SEQ_LEN) #define CAPABILITY_ESS(cap) ((cap) & 0x0001) #define CAPABILITY_IBSS(cap) ((cap) & 0x0002) #define CAPABILITY_CFP(cap) ((cap) & 0x0004) #define CAPABILITY_CFP_REQ(cap) ((cap) & 0x0008) #define CAPABILITY_PRIVACY(cap) ((cap) & 0x0010) typedef enum { NOT_PRESENT, PRESENT, TRUNCATED } elem_status_t; struct ssid_t { u_int8_t element_id; u_int8_t length; u_char ssid[33]; /* 32 + 1 for null */ }; struct rates_t { u_int8_t element_id; u_int8_t length; u_int8_t rate[16]; }; struct challenge_t { u_int8_t element_id; u_int8_t length; u_int8_t text[254]; /* 1-253 + 1 for null */ }; struct fh_t { u_int8_t element_id; u_int8_t length; u_int16_t dwell_time; u_int8_t hop_set; u_int8_t hop_pattern; u_int8_t hop_index; }; struct ds_t { u_int8_t element_id; u_int8_t length; u_int8_t channel; }; struct cf_t { u_int8_t element_id; u_int8_t length; u_int8_t count; u_int8_t period; u_int16_t max_duration; u_int16_t dur_remaing; }; struct tim_t { u_int8_t element_id; u_int8_t length; u_int8_t count; u_int8_t period; u_int8_t bitmap_control; u_int8_t bitmap[251]; }; #define E_SSID 0 #define E_RATES 1 #define E_FH 2 #define E_DS 3 #define E_CF 4 #define E_TIM 5 #define E_IBSS 6 /* reserved 7 */ /* reserved 8 */ /* reserved 9 */ /* reserved 10 */ /* reserved 11 */ /* reserved 12 */ /* reserved 13 */ /* reserved 14 */ /* reserved 15 */ /* reserved 16 */ #define E_CHALLENGE 16 /* reserved 17 */ /* reserved 18 */ /* reserved 19 */ /* reserved 16 */ /* reserved 16 */ struct mgmt_body_t { u_int8_t timestamp[IEEE802_11_TSTAMP_LEN]; u_int16_t beacon_interval; u_int16_t listen_interval; u_int16_t status_code; u_int16_t aid; u_char ap[IEEE802_11_AP_LEN]; u_int16_t reason_code; u_int16_t auth_alg; u_int16_t auth_trans_seq_num; elem_status_t challenge_status; struct challenge_t challenge; u_int16_t capability_info; elem_status_t ssid_status; struct ssid_t ssid; elem_status_t rates_status; struct rates_t rates; elem_status_t ds_status; struct ds_t ds; elem_status_t cf_status; struct cf_t cf; elem_status_t fh_status; struct fh_t fh; elem_status_t tim_status; struct tim_t tim; }; struct ctrl_rts_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t ta[6]; u_int8_t fcs[4]; }; #define CTRL_RTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ IEEE802_11_RA_LEN+IEEE802_11_TA_LEN) struct ctrl_cts_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t fcs[4]; }; #define CTRL_CTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN) struct ctrl_ack_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t fcs[4]; }; #define CTRL_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN) struct ctrl_ps_poll_t { u_int16_t fc; u_int16_t aid; u_int8_t bssid[6]; u_int8_t ta[6]; u_int8_t fcs[4]; }; #define CTRL_PS_POLL_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_AID_LEN+\ IEEE802_11_BSSID_LEN+IEEE802_11_TA_LEN) struct ctrl_end_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t bssid[6]; u_int8_t fcs[4]; }; #define CTRL_END_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN) struct ctrl_end_ack_t { u_int16_t fc; u_int16_t duration; u_int8_t ra[6]; u_int8_t bssid[6]; u_int8_t fcs[4]; }; #define CTRL_END_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN) +struct ctrl_ba_t { + u_int16_t fc; + u_int16_t duration; + u_int8_t ra[6]; + u_int8_t fcs[4]; +}; + +#define CTRL_BA_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN) + struct ctrl_bar_t { u_int16_t fc; u_int16_t dur; u_int8_t ra[6]; u_int8_t ta[6]; u_int16_t ctl; u_int16_t seq; u_int8_t fcs[4]; }; #define CTRL_BAR_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ IEEE802_11_RA_LEN+IEEE802_11_TA_LEN+\ IEEE802_11_CTL_LEN+IEEE802_11_SEQ_LEN) + +struct meshcntl_t { + u_int8_t flags; + u_int8_t ttl; + u_int8_t seq[4]; + u_int8_t addr4[6]; + u_int8_t addr5[6]; + u_int8_t addr6[6]; +}; #define IV_IV(iv) ((iv) & 0xFFFFFF) #define IV_PAD(iv) (((iv) >> 24) & 0x3F) #define IV_KEYID(iv) (((iv) >> 30) & 0x03) Index: head/contrib/tcpdump/print-802_11.c =================================================================== --- head/contrib/tcpdump/print-802_11.c (revision 195683) +++ head/contrib/tcpdump/print-802_11.c (revision 195684) @@ -1,1417 +1,1633 @@ /* $FreeBSD$ */ /* * Copyright (c) 2001 * Fortress Technologies, Inc. All rights reserved. * Charlie Lenahan (clenahan@fortresstech.com) * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of * the University nor the names of its contributors may be used to endorse * or promote products derived from this software without specific prior * written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint static const char rcsid[] _U_ = "@(#) $Header: /tcpdump/master/tcpdump/print-802_11.c,v 1.47.2.2 2007-12-29 23:25:28 guy Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include "interface.h" #include "addrtoname.h" #include "ethertype.h" #include "extract.h" #include "cpack.h" #include "ieee802_11.h" #include "ieee802_11_radio.h" #define PRINT_SSID(p) \ switch (p.ssid_status) { \ case TRUNCATED: \ return 0; \ case PRESENT: \ printf(" ("); \ fn_print(p.ssid.ssid, NULL); \ printf(")"); \ break; \ case NOT_PRESENT: \ break; \ } #define PRINT_RATE(_sep, _r, _suf) \ printf("%s%2.1f%s", _sep, (.5 * ((_r) & 0x7f)), _suf) #define PRINT_RATES(p) \ switch (p.rates_status) { \ case TRUNCATED: \ return 0; \ case PRESENT: \ do { \ int z; \ const char *sep = " ["; \ for (z = 0; z < p.rates.length ; z++) { \ PRINT_RATE(sep, p.rates.rate[z], \ (p.rates.rate[z] & 0x80 ? "*" : "")); \ sep = " "; \ } \ if (p.rates.length != 0) \ printf(" Mbit]"); \ } while (0); \ break; \ case NOT_PRESENT: \ break; \ } #define PRINT_DS_CHANNEL(p) \ switch (p.ds_status) { \ case TRUNCATED: \ return 0; \ case PRESENT: \ printf(" CH: %u", p.ds.channel); \ break; \ case NOT_PRESENT: \ break; \ } \ printf("%s", \ CAPABILITY_PRIVACY(p.capability_info) ? ", PRIVACY" : "" ); static const int ieee80211_htrates[16] = { 13, /* IFM_IEEE80211_MCS0 */ 26, /* IFM_IEEE80211_MCS1 */ 39, /* IFM_IEEE80211_MCS2 */ 52, /* IFM_IEEE80211_MCS3 */ 78, /* IFM_IEEE80211_MCS4 */ 104, /* IFM_IEEE80211_MCS5 */ 117, /* IFM_IEEE80211_MCS6 */ 130, /* IFM_IEEE80211_MCS7 */ 26, /* IFM_IEEE80211_MCS8 */ 52, /* IFM_IEEE80211_MCS9 */ 78, /* IFM_IEEE80211_MCS10 */ 104, /* IFM_IEEE80211_MCS11 */ 156, /* IFM_IEEE80211_MCS12 */ 208, /* IFM_IEEE80211_MCS13 */ 234, /* IFM_IEEE80211_MCS14 */ 260, /* IFM_IEEE80211_MCS15 */ }; #define PRINT_HT_RATE(_sep, _r, _suf) \ printf("%s%.1f%s", _sep, (.5 * ieee80211_htrates[(_r) & 0xf]), _suf) static const char *auth_alg_text[]={"Open System","Shared Key","EAP"}; #define NUM_AUTH_ALGS (sizeof auth_alg_text / sizeof auth_alg_text[0]) static const char *status_text[] = { - "Succesful", /* 0 */ - "Unspecified failure", /* 1 */ - "Reserved", /* 2 */ - "Reserved", /* 3 */ - "Reserved", /* 4 */ - "Reserved", /* 5 */ - "Reserved", /* 6 */ - "Reserved", /* 7 */ - "Reserved", /* 8 */ - "Reserved", /* 9 */ - "Cannot Support all requested capabilities in the Capability Information field", /* 10 */ - "Reassociation denied due to inability to confirm that association exists", /* 11 */ - "Association denied due to reason outside the scope of the standard", /* 12 */ - "Responding station does not support the specified authentication algorithm ", /* 13 */ - "Received an Authentication frame with authentication transaction " \ - "sequence number out of expected sequence", /* 14 */ - "Authentication rejected because of challenge failure", /* 15 */ - "Authentication rejected due to timeout waiting for next frame in sequence", /* 16 */ - "Association denied because AP is unable to handle additional associated stations", /* 17 */ - "Association denied due to requesting station not supporting all of the " \ - "data rates in BSSBasicRateSet parameter", /* 18 */ + "Succesful", /* 0 */ + "Unspecified failure", /* 1 */ + "Reserved", /* 2 */ + "Reserved", /* 3 */ + "Reserved", /* 4 */ + "Reserved", /* 5 */ + "Reserved", /* 6 */ + "Reserved", /* 7 */ + "Reserved", /* 8 */ + "Reserved", /* 9 */ + "Cannot Support all requested capabilities in the Capability " + "Information field", /* 10 */ + "Reassociation denied due to inability to confirm that association " + "exists", /* 11 */ + "Association denied due to reason outside the scope of the " + "standard", /* 12 */ + "Responding station does not support the specified authentication " + "algorithm ", /* 13 */ + "Received an Authentication frame with authentication transaction " + "sequence number out of expected sequence", /* 14 */ + "Authentication rejected because of challenge failure", /* 15 */ + "Authentication rejected due to timeout waiting for next frame in " + "sequence", /* 16 */ + "Association denied because AP is unable to handle additional" + "associated stations", /* 17 */ + "Association denied due to requesting station not supporting all of " + "the data rates in BSSBasicRateSet parameter", /* 18 */ + "Association denied due to requesting station not supporting " + "short preamble operation", /* 19 */ + "Association denied due to requesting station not supporting " + "PBCC encoding", /* 20 */ + "Association denied due to requesting station not supporting " + "channel agility", /* 21 */ + "Association request rejected because Spectrum Management " + "capability is required", /* 22 */ + "Association request rejected because the information in the " + "Power Capability element is unacceptable", /* 23 */ + "Association request rejected because the information in the " + "Supported Channels element is unacceptable", /* 24 */ + "Association denied due to requesting station not supporting " + "short slot operation", /* 25 */ + "Association denied due to requesting station not supporting " + "DSSS-OFDM operation", /* 26 */ + "Association denied because the requested STA does not support HT " + "features", /* 27 */ + "Reserved", /* 28 */ + "Association denied because the requested STA does not support " + "the PCO transition time required by the AP", /* 29 */ + "Reserved", /* 30 */ + "Reserved", /* 31 */ + "Unspecified, QoS-related failure", /* 32 */ + "Association denied due to QAP having insufficient bandwidth " + "to handle another QSTA", /* 33 */ + "Association denied due to excessive frame loss rates and/or " + "poor conditions on current operating channel", /* 34 */ + "Association (with QBSS) denied due to requesting station not " + "supporting the QoS facility", /* 35 */ + "Association denied due to requesting station not supporting " + "Block Ack", /* 36 */ + "The request has been declined", /* 37 */ + "The request has not been successful as one or more parameters " + "have invalid values", /* 38 */ + "The TS has not been created because the request cannot be honored. " + "However, a suggested TSPEC is provided so that the initiating QSTA" + "may attempt to set another TS with the suggested changes to the " + "TSPEC", /* 39 */ + "Invalid Information Element", /* 40 */ + "Group Cipher is not valid", /* 41 */ + "Pairwise Cipher is not valid", /* 42 */ + "AKMP is not valid", /* 43 */ + "Unsupported RSN IE version", /* 44 */ + "Invalid RSN IE Capabilities", /* 45 */ + "Cipher suite is rejected per security policy", /* 46 */ + "The TS has not been created. However, the HC may be capable of " + "creating a TS, in response to a request, after the time indicated " + "in the TS Delay element", /* 47 */ + "Direct Link is not allowed in the BSS by policy", /* 48 */ + "Destination STA is not present within this QBSS.", /* 49 */ + "The Destination STA is not a QSTA.", /* 50 */ + }; #define NUM_STATUSES (sizeof status_text / sizeof status_text[0]) static const char *reason_text[] = { - "Reserved", /* 0 */ - "Unspecified reason", /* 1 */ - "Previous authentication no longer valid", /* 2 */ - "Deauthenticated because sending station is leaving (or has left) IBSS or ESS", /* 3 */ - "Disassociated due to inactivity", /* 4 */ - "Disassociated because AP is unable to handle all currently associated stations", /* 5 */ + "Reserved", /* 0 */ + "Unspecified reason", /* 1 */ + "Previous authentication no longer valid", /* 2 */ + "Deauthenticated because sending station is leaving (or has left) " + "IBSS or ESS", /* 3 */ + "Disassociated due to inactivity", /* 4 */ + "Disassociated because AP is unable to handle all currently " + " associated stations", /* 5 */ "Class 2 frame received from nonauthenticated station", /* 6 */ - "Class 3 frame received from nonassociated station", /* 7 */ - "Disassociated because sending station is leaving (or has left) BSS", /* 8 */ - "Station requesting (re)association is not authenticated with responding station", /* 9 */ + "Class 3 frame received from nonassociated station", /* 7 */ + "Disassociated because sending station is leaving " + "(or has left) BSS", /* 8 */ + "Station requesting (re)association is not authenticated with " + "responding station", /* 9 */ + "Disassociated because the information in the Power Capability " + "element is unacceptable", /* 10 */ + "Disassociated because the information in the SupportedChannels " + "element is unacceptable", /* 11 */ + "Invalid Information Element", /* 12 */ + "Reserved", /* 13 */ + "Michael MIC failure", /* 14 */ + "4-Way Handshake timeout", /* 15 */ + "Group key update timeout", /* 16 */ + "Information element in 4-Way Handshake different from (Re)Association" + "Request/Probe Response/Beacon", /* 17 */ + "Group Cipher is not valid", /* 18 */ + "AKMP is not valid", /* 20 */ + "Unsupported RSN IE version", /* 21 */ + "Invalid RSN IE Capabilities", /* 22 */ + "IEEE 802.1X Authentication failed", /* 23 */ + "Cipher suite is rejected per security policy", /* 24 */ + "Reserved", /* 25 */ + "Reserved", /* 26 */ + "Reserved", /* 27 */ + "Reserved", /* 28 */ + "Reserved", /* 29 */ + "Reserved", /* 30 */ + "TS deleted because QoS AP lacks sufficient bandwidth for this " + "QoS STA due to a change in BSS service characteristics or " + "operational mode (e.g. an HT BSS change from 40 MHz channel " + "to 20 MHz channel)", /* 31 */ + "Disassociated for unspecified, QoS-related reason", /* 32 */ + "Disassociated because QoS AP lacks sufficient bandwidth for this " + "QoS STA", /* 33 */ + "Disassociated because of excessive number of frames that need to be " + "acknowledged, but are not acknowledged for AP transmissions " + "and/or poor channel conditions", /* 34 */ + "Disassociated because STA is transmitting outside the limits " + "of its TXOPs", /* 35 */ + "Requested from peer STA as the STA is leaving the BSS " + "(or resetting)", /* 36 */ + "Requested from peer STA as it does not want to use the " + "mechanism", /* 37 */ + "Requested from peer STA as the STA received frames using the " + "mechanism for which a set up is required", /* 38 */ + "Requested from peer STA due to time out", /* 39 */ + "Reserved", /* 40 */ + "Reserved", /* 41 */ + "Reserved", /* 42 */ + "Reserved", /* 43 */ + "Reserved", /* 44 */ + "Peer STA does not support the requested cipher suite", /* 45 */ + "Association denied due to requesting STA not supporting HT " + "features", /* 46 */ }; #define NUM_REASONS (sizeof reason_text / sizeof reason_text[0]) static int wep_print(const u_char *p) { u_int32_t iv; if (!TTEST2(*p, IEEE802_11_IV_LEN + IEEE802_11_KID_LEN)) return 0; iv = EXTRACT_LE_32BITS(p); printf("Data IV:%3x Pad %x KeyID %x", IV_IV(iv), IV_PAD(iv), IV_KEYID(iv)); return 1; } static void parse_elements(struct mgmt_body_t *pbody, const u_char *p, int offset) { /* * We haven't seen any elements yet. */ pbody->challenge_status = NOT_PRESENT; pbody->ssid_status = NOT_PRESENT; pbody->rates_status = NOT_PRESENT; pbody->ds_status = NOT_PRESENT; pbody->cf_status = NOT_PRESENT; pbody->tim_status = NOT_PRESENT; for (;;) { if (!TTEST2(*(p + offset), 1)) return; switch (*(p + offset)) { case E_SSID: /* Present, possibly truncated */ pbody->ssid_status = TRUNCATED; if (!TTEST2(*(p + offset), 2)) return; memcpy(&pbody->ssid, p + offset, 2); offset += 2; if (pbody->ssid.length != 0) { if (pbody->ssid.length > sizeof(pbody->ssid.ssid) - 1) return; if (!TTEST2(*(p + offset), pbody->ssid.length)) return; memcpy(&pbody->ssid.ssid, p + offset, pbody->ssid.length); offset += pbody->ssid.length; } pbody->ssid.ssid[pbody->ssid.length] = '\0'; /* Present and not truncated */ pbody->ssid_status = PRESENT; break; case E_CHALLENGE: /* Present, possibly truncated */ pbody->challenge_status = TRUNCATED; if (!TTEST2(*(p + offset), 2)) return; memcpy(&pbody->challenge, p + offset, 2); offset += 2; if (pbody->challenge.length != 0) { if (pbody->challenge.length > sizeof(pbody->challenge.text) - 1) return; if (!TTEST2(*(p + offset), pbody->challenge.length)) return; memcpy(&pbody->challenge.text, p + offset, pbody->challenge.length); offset += pbody->challenge.length; } pbody->challenge.text[pbody->challenge.length] = '\0'; /* Present and not truncated */ pbody->challenge_status = PRESENT; break; case E_RATES: /* Present, possibly truncated */ pbody->rates_status = TRUNCATED; if (!TTEST2(*(p + offset), 2)) return; memcpy(&(pbody->rates), p + offset, 2); offset += 2; if (pbody->rates.length != 0) { if (pbody->rates.length > sizeof pbody->rates.rate) return; if (!TTEST2(*(p + offset), pbody->rates.length)) return; memcpy(&pbody->rates.rate, p + offset, pbody->rates.length); offset += pbody->rates.length; } /* Present and not truncated */ pbody->rates_status = PRESENT; break; case E_DS: /* Present, possibly truncated */ pbody->ds_status = TRUNCATED; if (!TTEST2(*(p + offset), 3)) return; memcpy(&pbody->ds, p + offset, 3); offset += 3; /* Present and not truncated */ pbody->ds_status = PRESENT; break; case E_CF: /* Present, possibly truncated */ pbody->cf_status = TRUNCATED; if (!TTEST2(*(p + offset), 8)) return; memcpy(&pbody->cf, p + offset, 8); offset += 8; /* Present and not truncated */ pbody->cf_status = PRESENT; break; case E_TIM: /* Present, possibly truncated */ pbody->tim_status = TRUNCATED; if (!TTEST2(*(p + offset), 2)) return; memcpy(&pbody->tim, p + offset, 2); offset += 2; if (!TTEST2(*(p + offset), 3)) return; memcpy(&pbody->tim.count, p + offset, 3); offset += 3; if (pbody->tim.length <= 3) break; if (pbody->tim.length - 3 > (int)sizeof pbody->tim.bitmap) return; if (!TTEST2(*(p + offset), pbody->tim.length - 3)) return; memcpy(pbody->tim.bitmap, p + (pbody->tim.length - 3), (pbody->tim.length - 3)); offset += pbody->tim.length - 3; /* Present and not truncated */ pbody->tim_status = PRESENT; break; default: #if 0 printf("(1) unhandled element_id (%d) ", *(p + offset) ); #endif if (!TTEST2(*(p + offset), 2)) return; if (!TTEST2(*(p + offset + 2), *(p + offset + 1))) return; offset += *(p + offset + 1) + 2; break; } } } /********************************************************************************* * Print Handle functions for the management frame types *********************************************************************************/ static int handle_beacon(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_TSTAMP_LEN + IEEE802_11_BCNINT_LEN + IEEE802_11_CAPINFO_LEN)) return 0; memcpy(&pbody.timestamp, p, IEEE802_11_TSTAMP_LEN); offset += IEEE802_11_TSTAMP_LEN; pbody.beacon_interval = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_BCNINT_LEN; pbody.capability_info = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_CAPINFO_LEN; parse_elements(&pbody, p, offset); PRINT_SSID(pbody); PRINT_RATES(pbody); printf(" %s", CAPABILITY_ESS(pbody.capability_info) ? "ESS" : "IBSS"); PRINT_DS_CHANNEL(pbody); return 1; } static int handle_assoc_request(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_CAPINFO_LEN + IEEE802_11_LISTENINT_LEN)) return 0; pbody.capability_info = EXTRACT_LE_16BITS(p); offset += IEEE802_11_CAPINFO_LEN; pbody.listen_interval = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_LISTENINT_LEN; parse_elements(&pbody, p, offset); PRINT_SSID(pbody); PRINT_RATES(pbody); return 1; } static int handle_assoc_response(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_CAPINFO_LEN + IEEE802_11_STATUS_LEN + IEEE802_11_AID_LEN)) return 0; pbody.capability_info = EXTRACT_LE_16BITS(p); offset += IEEE802_11_CAPINFO_LEN; pbody.status_code = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_STATUS_LEN; pbody.aid = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_AID_LEN; parse_elements(&pbody, p, offset); printf(" AID(%x) :%s: %s", ((u_int16_t)(pbody.aid << 2 )) >> 2 , CAPABILITY_PRIVACY(pbody.capability_info) ? " PRIVACY " : "", (pbody.status_code < NUM_STATUSES ? status_text[pbody.status_code] : "n/a")); return 1; } static int handle_reassoc_request(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_CAPINFO_LEN + IEEE802_11_LISTENINT_LEN + IEEE802_11_AP_LEN)) return 0; pbody.capability_info = EXTRACT_LE_16BITS(p); offset += IEEE802_11_CAPINFO_LEN; pbody.listen_interval = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_LISTENINT_LEN; memcpy(&pbody.ap, p+offset, IEEE802_11_AP_LEN); offset += IEEE802_11_AP_LEN; parse_elements(&pbody, p, offset); PRINT_SSID(pbody); printf(" AP : %s", etheraddr_string( pbody.ap )); return 1; } static int handle_reassoc_response(const u_char *p) { /* Same as a Association Reponse */ return handle_assoc_response(p); } static int handle_probe_request(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); parse_elements(&pbody, p, offset); PRINT_SSID(pbody); PRINT_RATES(pbody); return 1; } static int handle_probe_response(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_TSTAMP_LEN + IEEE802_11_BCNINT_LEN + IEEE802_11_CAPINFO_LEN)) return 0; memcpy(&pbody.timestamp, p, IEEE802_11_TSTAMP_LEN); offset += IEEE802_11_TSTAMP_LEN; pbody.beacon_interval = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_BCNINT_LEN; pbody.capability_info = EXTRACT_LE_16BITS(p+offset); offset += IEEE802_11_CAPINFO_LEN; parse_elements(&pbody, p, offset); PRINT_SSID(pbody); PRINT_RATES(pbody); PRINT_DS_CHANNEL(pbody); return 1; } static int handle_atim(void) { /* the frame body for ATIM is null. */ return 1; } static int handle_disassoc(const u_char *p) { struct mgmt_body_t pbody; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_REASON_LEN)) return 0; pbody.reason_code = EXTRACT_LE_16BITS(p); printf(": %s", (pbody.reason_code < NUM_REASONS) ? reason_text[pbody.reason_code] : "Reserved" ); return 1; } static int handle_auth(const u_char *p) { struct mgmt_body_t pbody; int offset = 0; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, 6)) return 0; pbody.auth_alg = EXTRACT_LE_16BITS(p); offset += 2; pbody.auth_trans_seq_num = EXTRACT_LE_16BITS(p + offset); offset += 2; pbody.status_code = EXTRACT_LE_16BITS(p + offset); offset += 2; parse_elements(&pbody, p, offset); if ((pbody.auth_alg == 1) && ((pbody.auth_trans_seq_num == 2) || (pbody.auth_trans_seq_num == 3))) { printf(" (%s)-%x [Challenge Text] %s", (pbody.auth_alg < NUM_AUTH_ALGS) ? auth_alg_text[pbody.auth_alg] : "Reserved", pbody.auth_trans_seq_num, ((pbody.auth_trans_seq_num % 2) ? ((pbody.status_code < NUM_STATUSES) ? status_text[pbody.status_code] : "n/a") : "")); return 1; } printf(" (%s)-%x: %s", (pbody.auth_alg < NUM_AUTH_ALGS) ? auth_alg_text[pbody.auth_alg] : "Reserved", pbody.auth_trans_seq_num, (pbody.auth_trans_seq_num % 2) ? ((pbody.status_code < NUM_STATUSES) ? status_text[pbody.status_code] : "n/a") : ""); return 1; } static int handle_deauth(const struct mgmt_header_t *pmh, const u_char *p) { struct mgmt_body_t pbody; int offset = 0; const char *reason = NULL; memset(&pbody, 0, sizeof(pbody)); if (!TTEST2(*p, IEEE802_11_REASON_LEN)) return 0; pbody.reason_code = EXTRACT_LE_16BITS(p); offset += IEEE802_11_REASON_LEN; reason = (pbody.reason_code < NUM_REASONS) ? reason_text[pbody.reason_code] : "Reserved"; if (eflag) { printf(": %s", reason); } else { printf(" (%s): %s", etheraddr_string(pmh->sa), reason); } return 1; } +#define PRINT_HT_ACTION(v) (\ + (v) == 0 ? printf("TxChWidth") : \ + (v) == 1 ? printf("MIMOPwrSave") : \ + printf("Act#%d", (v)) \ +) +#define PRINT_BA_ACTION(v) (\ + (v) == 0 ? printf("ADDBA Request") : \ + (v) == 1 ? printf("ADDBA Response") : \ + (v) == 2 ? printf("DELBA") : \ + printf("Act#%d", (v)) \ +) +#define PRINT_MESHLINK_ACTION(v) (\ + (v) == 0 ? printf("Request") : \ + (v) == 1 ? printf("Report") : \ + printf("Act#%d", (v)) \ +) +#define PRINT_MESHPEERING_ACTION(v) (\ + (v) == 0 ? printf("Open") : \ + (v) == 1 ? printf("Confirm") : \ + (v) == 2 ? printf("Close") : \ + printf("Act#%d", (v)) \ +) +#define PRINT_MESHPATH_ACTION(v) (\ + (v) == 0 ? printf("Request") : \ + (v) == 1 ? printf("Report") : \ + (v) == 2 ? printf("Error") : \ + (v) == 3 ? printf("RootAnnouncement") : \ + printf("Act#%d", (v)) \ +) +static int +handle_action(const struct mgmt_header_t *pmh, const u_char *p) +{ + if (!TTEST2(*p, 2)) + return 0; + if (eflag) { + printf(": "); + } else { + printf(" (%s): ", etheraddr_string(pmh->sa)); + } + switch (p[0]) { + case 0: printf("Spectrum Management Act#%d", p[1]); break; + case 1: printf("QoS Act#%d", p[1]); break; + case 2: printf("DLS Act#%d", p[1]); break; + case 3: printf("BA "); PRINT_BA_ACTION(p[1]); break; + case 7: printf("HT "); PRINT_HT_ACTION(p[1]); break; + case 13: printf("MeshLMetric "); PRINT_MESHLINK_ACTION(p[1]); break; + case 15: printf("Interwork Act#%d", p[1]); break; + case 16: printf("Resource Act#%d", p[1]); break; + case 17: printf("Proxy Act#%d", p[1]); break; + case 30: printf("MeshPeering "); PRINT_MESHPEERING_ACTION(p[1]); break; + case 32: printf("MeshPath "); PRINT_MESHPATH_ACTION(p[1]); break; + case 127: printf("Vendor Act#%d", p[1]); break; + default: + printf("Reserved(%d) Act#%d", p[0], p[1]); + break; + } + return 1; +} + + /********************************************************************************* * Print Body funcs *********************************************************************************/ static int mgmt_body_print(u_int16_t fc, const struct mgmt_header_t *pmh, const u_char *p) { switch (FC_SUBTYPE(fc)) { case ST_ASSOC_REQUEST: printf("Assoc Request"); return handle_assoc_request(p); case ST_ASSOC_RESPONSE: printf("Assoc Response"); return handle_assoc_response(p); case ST_REASSOC_REQUEST: printf("ReAssoc Request"); return handle_reassoc_request(p); case ST_REASSOC_RESPONSE: printf("ReAssoc Response"); return handle_reassoc_response(p); case ST_PROBE_REQUEST: printf("Probe Request"); return handle_probe_request(p); case ST_PROBE_RESPONSE: printf("Probe Response"); return handle_probe_response(p); case ST_BEACON: printf("Beacon"); return handle_beacon(p); case ST_ATIM: printf("ATIM"); return handle_atim(); case ST_DISASSOC: printf("Disassociation"); return handle_disassoc(p); case ST_AUTH: printf("Authentication"); if (!TTEST2(*p, 3)) return 0; if ((p[0] == 0 ) && (p[1] == 0) && (p[2] == 0)) { printf("Authentication (Shared-Key)-3 "); return wep_print(p); } return handle_auth(p); case ST_DEAUTH: printf("DeAuthentication"); return handle_deauth(pmh, p); break; + case ST_ACTION: + printf("Action"); + return handle_action(pmh, p); + break; default: printf("Unhandled Management subtype(%x)", FC_SUBTYPE(fc)); return 1; } } /********************************************************************************* * Handles printing all the control frame types *********************************************************************************/ static int ctrl_body_print(u_int16_t fc, const u_char *p) { switch (FC_SUBTYPE(fc)) { case CTRL_BAR: printf("BAR"); if (!TTEST2(*p, CTRL_BAR_HDRLEN)) return 0; if (!eflag) printf(" RA:%s TA:%s CTL(%x) SEQ(%u) ", etheraddr_string(((const struct ctrl_bar_t *)p)->ra), etheraddr_string(((const struct ctrl_bar_t *)p)->ta), EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->ctl)), EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->seq))); break; + case CTRL_BA: + printf("BA"); + if (!TTEST2(*p, CTRL_BA_HDRLEN)) + return 0; + if (!eflag) + printf(" RA:%s ", + etheraddr_string(((const struct ctrl_ba_t *)p)->ra)); + break; case CTRL_PS_POLL: printf("Power Save-Poll"); if (!TTEST2(*p, CTRL_PS_POLL_HDRLEN)) return 0; printf(" AID(%x)", EXTRACT_LE_16BITS(&(((const struct ctrl_ps_poll_t *)p)->aid))); break; case CTRL_RTS: printf("Request-To-Send"); if (!TTEST2(*p, CTRL_RTS_HDRLEN)) return 0; if (!eflag) printf(" TA:%s ", etheraddr_string(((const struct ctrl_rts_t *)p)->ta)); break; case CTRL_CTS: printf("Clear-To-Send"); if (!TTEST2(*p, CTRL_CTS_HDRLEN)) return 0; if (!eflag) printf(" RA:%s ", etheraddr_string(((const struct ctrl_cts_t *)p)->ra)); break; case CTRL_ACK: printf("Acknowledgment"); if (!TTEST2(*p, CTRL_ACK_HDRLEN)) return 0; if (!eflag) printf(" RA:%s ", etheraddr_string(((const struct ctrl_ack_t *)p)->ra)); break; case CTRL_CF_END: printf("CF-End"); if (!TTEST2(*p, CTRL_END_HDRLEN)) return 0; if (!eflag) printf(" RA:%s ", etheraddr_string(((const struct ctrl_end_t *)p)->ra)); break; case CTRL_END_ACK: printf("CF-End+CF-Ack"); if (!TTEST2(*p, CTRL_END_ACK_HDRLEN)) return 0; if (!eflag) printf(" RA:%s ", etheraddr_string(((const struct ctrl_end_ack_t *)p)->ra)); break; default: printf("Unknown Ctrl Subtype"); } return 1; } /* * Print Header funcs */ /* * Data Frame - Address field contents * * To Ds | From DS | Addr 1 | Addr 2 | Addr 3 | Addr 4 * 0 | 0 | DA | SA | BSSID | n/a * 0 | 1 | DA | BSSID | SA | n/a * 1 | 0 | BSSID | SA | DA | n/a * 1 | 1 | RA | TA | DA | SA */ static void data_header_print(u_int16_t fc, const u_char *p, const u_int8_t **srcp, const u_int8_t **dstp) { u_int subtype = FC_SUBTYPE(fc); if (DATA_FRAME_IS_CF_ACK(subtype) || DATA_FRAME_IS_CF_POLL(subtype) || DATA_FRAME_IS_QOS(subtype)) { printf("CF "); if (DATA_FRAME_IS_CF_ACK(subtype)) { if (DATA_FRAME_IS_CF_POLL(subtype)) printf("Ack/Poll"); else printf("Ack"); } else { if (DATA_FRAME_IS_CF_POLL(subtype)) printf("Poll"); } if (DATA_FRAME_IS_QOS(subtype)) printf("+QoS"); printf(" "); } #define ADDR1 (p + 4) #define ADDR2 (p + 10) #define ADDR3 (p + 16) #define ADDR4 (p + 24) if (!FC_TO_DS(fc) && !FC_FROM_DS(fc)) { if (srcp != NULL) *srcp = ADDR2; if (dstp != NULL) *dstp = ADDR1; if (!eflag) return; printf("DA:%s SA:%s BSSID:%s ", etheraddr_string(ADDR1), etheraddr_string(ADDR2), etheraddr_string(ADDR3)); } else if (!FC_TO_DS(fc) && FC_FROM_DS(fc)) { if (srcp != NULL) *srcp = ADDR3; if (dstp != NULL) *dstp = ADDR1; if (!eflag) return; printf("DA:%s BSSID:%s SA:%s ", etheraddr_string(ADDR1), etheraddr_string(ADDR2), etheraddr_string(ADDR3)); } else if (FC_TO_DS(fc) && !FC_FROM_DS(fc)) { if (srcp != NULL) *srcp = ADDR2; if (dstp != NULL) *dstp = ADDR3; if (!eflag) return; printf("BSSID:%s SA:%s DA:%s ", etheraddr_string(ADDR1), etheraddr_string(ADDR2), etheraddr_string(ADDR3)); } else if (FC_TO_DS(fc) && FC_FROM_DS(fc)) { if (srcp != NULL) *srcp = ADDR4; if (dstp != NULL) *dstp = ADDR3; if (!eflag) return; printf("RA:%s TA:%s DA:%s SA:%s ", etheraddr_string(ADDR1), etheraddr_string(ADDR2), etheraddr_string(ADDR3), etheraddr_string(ADDR4)); } #undef ADDR1 #undef ADDR2 #undef ADDR3 #undef ADDR4 } static void mgmt_header_print(const u_char *p, const u_int8_t **srcp, const u_int8_t **dstp) { const struct mgmt_header_t *hp = (const struct mgmt_header_t *) p; if (srcp != NULL) *srcp = hp->sa; if (dstp != NULL) *dstp = hp->da; if (!eflag) return; printf("BSSID:%s DA:%s SA:%s ", etheraddr_string((hp)->bssid), etheraddr_string((hp)->da), etheraddr_string((hp)->sa)); } static void ctrl_header_print(u_int16_t fc, const u_char *p, const u_int8_t **srcp, const u_int8_t **dstp) { if (srcp != NULL) *srcp = NULL; if (dstp != NULL) *dstp = NULL; if (!eflag) return; switch (FC_SUBTYPE(fc)) { case CTRL_BAR: printf(" RA:%s TA:%s CTL(%x) SEQ(%u) ", etheraddr_string(((const struct ctrl_bar_t *)p)->ra), etheraddr_string(((const struct ctrl_bar_t *)p)->ta), EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->ctl)), EXTRACT_LE_16BITS(&(((const struct ctrl_bar_t *)p)->seq))); break; + case CTRL_BA: + printf("RA:%s ", + etheraddr_string(((const struct ctrl_ba_t *)p)->ra)); + break; case CTRL_PS_POLL: printf("BSSID:%s TA:%s ", etheraddr_string(((const struct ctrl_ps_poll_t *)p)->bssid), etheraddr_string(((const struct ctrl_ps_poll_t *)p)->ta)); break; case CTRL_RTS: printf("RA:%s TA:%s ", etheraddr_string(((const struct ctrl_rts_t *)p)->ra), etheraddr_string(((const struct ctrl_rts_t *)p)->ta)); break; case CTRL_CTS: printf("RA:%s ", etheraddr_string(((const struct ctrl_cts_t *)p)->ra)); break; case CTRL_ACK: printf("RA:%s ", etheraddr_string(((const struct ctrl_ack_t *)p)->ra)); break; case CTRL_CF_END: printf("RA:%s BSSID:%s ", etheraddr_string(((const struct ctrl_end_t *)p)->ra), etheraddr_string(((const struct ctrl_end_t *)p)->bssid)); break; case CTRL_END_ACK: printf("RA:%s BSSID:%s ", etheraddr_string(((const struct ctrl_end_ack_t *)p)->ra), etheraddr_string(((const struct ctrl_end_ack_t *)p)->bssid)); break; default: printf("(H) Unknown Ctrl Subtype"); break; } } static int extract_header_length(u_int16_t fc) { int len; switch (FC_TYPE(fc)) { case T_MGMT: return MGMT_HDRLEN; case T_CTRL: switch (FC_SUBTYPE(fc)) { case CTRL_BAR: return CTRL_BAR_HDRLEN; case CTRL_PS_POLL: return CTRL_PS_POLL_HDRLEN; case CTRL_RTS: return CTRL_RTS_HDRLEN; case CTRL_CTS: return CTRL_CTS_HDRLEN; case CTRL_ACK: return CTRL_ACK_HDRLEN; case CTRL_CF_END: return CTRL_END_HDRLEN; case CTRL_END_ACK: return CTRL_END_ACK_HDRLEN; default: return 0; } case T_DATA: len = (FC_TO_DS(fc) && FC_FROM_DS(fc)) ? 30 : 24; if (DATA_FRAME_IS_QOS(FC_SUBTYPE(fc))) len += 2; return len; default: printf("unknown IEEE802.11 frame type (%d)", FC_TYPE(fc)); return 0; } } +static int +extract_mesh_header_length(const u_char *p) +{ + return (p[0] &~ 3) ? 0 : 6*(1 + (p[0] & 3)); +} + /* * Print the 802.11 MAC header if eflag is set, and set "*srcp" and "*dstp" * to point to the source and destination MAC addresses in any case if * "srcp" and "dstp" aren't null. */ -static inline void -ieee_802_11_hdr_print(u_int16_t fc, const u_char *p, const u_int8_t **srcp, - const u_int8_t **dstp) +static void +ieee_802_11_hdr_print(u_int16_t fc, const u_char *p, u_int hdrlen, + u_int meshdrlen, const u_int8_t **srcp, const u_int8_t **dstp) { if (vflag) { if (FC_MORE_DATA(fc)) printf("More Data "); if (FC_MORE_FLAG(fc)) printf("More Fragments "); if (FC_POWER_MGMT(fc)) printf("Pwr Mgmt "); if (FC_RETRY(fc)) printf("Retry "); if (FC_ORDER(fc)) printf("Strictly Ordered "); if (FC_WEP(fc)) printf("WEP Encrypted "); if (FC_TYPE(fc) != T_CTRL || FC_SUBTYPE(fc) != CTRL_PS_POLL) printf("%dus ", EXTRACT_LE_16BITS( &((const struct mgmt_header_t *)p)->duration)); } + if (meshdrlen != 0) { + const struct meshcntl_t *mc = + (const struct meshcntl_t *)&p[hdrlen - meshdrlen]; + int ae = mc->flags & 3; + printf("MeshData (AE %d TTL %u seq %u", ae, mc->ttl, + EXTRACT_LE_32BITS(mc->seq)); + if (ae > 0) + printf(" A4:%s", etheraddr_string(mc->addr4)); + if (ae > 1) + printf(" A5:%s", etheraddr_string(mc->addr5)); + if (ae > 2) + printf(" A6:%s", etheraddr_string(mc->addr6)); + printf(") "); + } + switch (FC_TYPE(fc)) { case T_MGMT: mgmt_header_print(p, srcp, dstp); break; case T_CTRL: ctrl_header_print(fc, p, srcp, dstp); break; case T_DATA: data_header_print(fc, p, srcp, dstp); break; default: printf("(header) unknown IEEE802.11 frame type (%d)", FC_TYPE(fc)); *srcp = NULL; *dstp = NULL; break; } } #ifndef roundup2 #define roundup2(x, y) (((x)+((y)-1))&(~((y)-1))) /* if y is powers of two */ #endif static u_int ieee802_11_print(const u_char *p, u_int length, u_int caplen, int pad) { u_int16_t fc; - u_int hdrlen; + u_int hdrlen, meshdrlen; const u_int8_t *src, *dst; u_short extracted_ethertype; if (caplen < IEEE802_11_FC_LEN) { printf("[|802.11]"); return caplen; } fc = EXTRACT_LE_16BITS(p); hdrlen = extract_header_length(fc); if (pad) hdrlen = roundup2(hdrlen, 4); + if (FC_TYPE(fc) == T_DATA && DATA_FRAME_IS_QOS(FC_SUBTYPE(fc))) { + meshdrlen = extract_mesh_header_length(p+hdrlen); + hdrlen += meshdrlen; + } else + meshdrlen = 0; + if (caplen < hdrlen) { printf("[|802.11]"); return hdrlen; } - ieee_802_11_hdr_print(fc, p, &src, &dst); + ieee_802_11_hdr_print(fc, p, hdrlen, meshdrlen, &src, &dst); /* * Go past the 802.11 header. */ length -= hdrlen; caplen -= hdrlen; p += hdrlen; switch (FC_TYPE(fc)) { case T_MGMT: if (!mgmt_body_print(fc, (const struct mgmt_header_t *)(p - hdrlen), p)) { printf("[|802.11]"); return hdrlen; } break; case T_CTRL: if (!ctrl_body_print(fc, p - hdrlen)) { printf("[|802.11]"); return hdrlen; } break; case T_DATA: if (DATA_FRAME_IS_NULL(FC_SUBTYPE(fc))) return hdrlen; /* no-data frame */ /* There may be a problem w/ AP not having this bit set */ if (FC_WEP(fc)) { if (!wep_print(p)) { printf("[|802.11]"); return hdrlen; } } else if (llc_print(p, length, caplen, dst, src, &extracted_ethertype) == 0) { /* * Some kinds of LLC packet we cannot * handle intelligently */ if (!eflag) - ieee_802_11_hdr_print(fc, p - hdrlen, NULL, - NULL); + ieee_802_11_hdr_print(fc, p - hdrlen, hdrlen, + meshdrlen, NULL, NULL); if (extracted_ethertype) printf("(LLC %s) ", etherproto_string( htons(extracted_ethertype))); if (!suppress_default_print) default_print(p, caplen); } break; default: printf("unknown 802.11 frame type (%d)", FC_TYPE(fc)); break; } return hdrlen; } /* * This is the top level routine of the printer. 'p' points * to the 802.11 header of the packet, 'h->ts' is the timestamp, * 'h->len' is the length of the packet off the wire, and 'h->caplen' * is the number of bytes actually captured. */ u_int ieee802_11_if_print(const struct pcap_pkthdr *h, const u_char *p) { return ieee802_11_print(p, h->len, h->caplen, 0); } #define IEEE80211_CHAN_FHSS \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK) #define IEEE80211_CHAN_A \ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM) #define IEEE80211_CHAN_B \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK) #define IEEE80211_CHAN_PUREG \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM) #define IEEE80211_CHAN_G \ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN) #define IS_CHAN_FHSS(flags) \ ((flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS) #define IS_CHAN_A(flags) \ ((flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A) #define IS_CHAN_B(flags) \ ((flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B) #define IS_CHAN_PUREG(flags) \ ((flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG) #define IS_CHAN_G(flags) \ ((flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G) #define IS_CHAN_ANYG(flags) \ (IS_CHAN_PUREG(flags) || IS_CHAN_G(flags)) static void print_chaninfo(int freq, int flags) { printf("%u MHz", freq); if (IS_CHAN_FHSS(flags)) printf(" FHSS"); if (IS_CHAN_A(flags)) { if (flags & IEEE80211_CHAN_HALF) printf(" 11a/10Mhz"); else if (flags & IEEE80211_CHAN_QUARTER) printf(" 11a/5Mhz"); else printf(" 11a"); } if (IS_CHAN_ANYG(flags)) { if (flags & IEEE80211_CHAN_HALF) printf(" 11g/10Mhz"); else if (flags & IEEE80211_CHAN_QUARTER) printf(" 11g/5Mhz"); else printf(" 11g"); } else if (IS_CHAN_B(flags)) printf(" 11b"); if (flags & IEEE80211_CHAN_TURBO) printf(" Turbo"); if (flags & IEEE80211_CHAN_HT20) printf(" ht/20"); else if (flags & IEEE80211_CHAN_HT40D) printf(" ht/40-"); else if (flags & IEEE80211_CHAN_HT40U) printf(" ht/40+"); printf(" "); } static int print_radiotap_field(struct cpack_state *s, u_int32_t bit, int *pad) { union { int8_t i8; u_int8_t u8; int16_t i16; u_int16_t u16; u_int32_t u32; u_int64_t u64; } u, u2, u3, u4; int rc; switch (bit) { case IEEE80211_RADIOTAP_FLAGS: rc = cpack_uint8(s, &u.u8); if (u.u8 & IEEE80211_RADIOTAP_F_DATAPAD) *pad = 1; break; case IEEE80211_RADIOTAP_RATE: case IEEE80211_RADIOTAP_DB_ANTSIGNAL: case IEEE80211_RADIOTAP_DB_ANTNOISE: case IEEE80211_RADIOTAP_ANTENNA: rc = cpack_uint8(s, &u.u8); break; case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: case IEEE80211_RADIOTAP_DBM_ANTNOISE: rc = cpack_int8(s, &u.i8); break; case IEEE80211_RADIOTAP_CHANNEL: rc = cpack_uint16(s, &u.u16); if (rc != 0) break; rc = cpack_uint16(s, &u2.u16); break; case IEEE80211_RADIOTAP_FHSS: case IEEE80211_RADIOTAP_LOCK_QUALITY: case IEEE80211_RADIOTAP_TX_ATTENUATION: rc = cpack_uint16(s, &u.u16); break; case IEEE80211_RADIOTAP_DB_TX_ATTENUATION: rc = cpack_uint8(s, &u.u8); break; case IEEE80211_RADIOTAP_DBM_TX_POWER: rc = cpack_int8(s, &u.i8); break; case IEEE80211_RADIOTAP_TSFT: rc = cpack_uint64(s, &u.u64); break; case IEEE80211_RADIOTAP_XCHANNEL: rc = cpack_uint32(s, &u.u32); if (rc != 0) break; rc = cpack_uint16(s, &u2.u16); if (rc != 0) break; rc = cpack_uint8(s, &u3.u8); if (rc != 0) break; rc = cpack_uint8(s, &u4.u8); break; default: /* this bit indicates a field whose * size we do not know, so we cannot * proceed. */ printf("[0x%08x] ", bit); return -1; } if (rc != 0) { printf("[|802.11]"); return rc; } switch (bit) { case IEEE80211_RADIOTAP_CHANNEL: print_chaninfo(u.u16, u2.u16); break; case IEEE80211_RADIOTAP_FHSS: printf("fhset %d fhpat %d ", u.u16 & 0xff, (u.u16 >> 8) & 0xff); break; case IEEE80211_RADIOTAP_RATE: if (u.u8 & 0x80) PRINT_HT_RATE("", u.u8, " Mb/s "); else PRINT_RATE("", u.u8, " Mb/s "); break; case IEEE80211_RADIOTAP_DBM_ANTSIGNAL: printf("%ddB signal ", u.i8); break; case IEEE80211_RADIOTAP_DBM_ANTNOISE: printf("%ddB noise ", u.i8); break; case IEEE80211_RADIOTAP_DB_ANTSIGNAL: printf("%ddB signal ", u.u8); break; case IEEE80211_RADIOTAP_DB_ANTNOISE: printf("%ddB noise ", u.u8); break; case IEEE80211_RADIOTAP_LOCK_QUALITY: printf("%u sq ", u.u16); break; case IEEE80211_RADIOTAP_TX_ATTENUATION: printf("%d tx power ", -(int)u.u16); break; case IEEE80211_RADIOTAP_DB_TX_ATTENUATION: printf("%ddB tx power ", -(int)u.u8); break; case IEEE80211_RADIOTAP_DBM_TX_POWER: printf("%ddBm tx power ", u.i8); break; case IEEE80211_RADIOTAP_FLAGS: if (u.u8 & IEEE80211_RADIOTAP_F_CFP) printf("cfp "); if (u.u8 & IEEE80211_RADIOTAP_F_SHORTPRE) printf("short preamble "); if (u.u8 & IEEE80211_RADIOTAP_F_WEP) printf("wep "); if (u.u8 & IEEE80211_RADIOTAP_F_FRAG) printf("fragmented "); if (u.u8 & IEEE80211_RADIOTAP_F_BADFCS) printf("bad-fcs "); break; case IEEE80211_RADIOTAP_ANTENNA: printf("antenna %d ", u.u8); break; case IEEE80211_RADIOTAP_TSFT: printf("%" PRIu64 "us tsft ", u.u64); break; case IEEE80211_RADIOTAP_XCHANNEL: print_chaninfo(u2.u16, u.u32); break; } return 0; } static u_int ieee802_11_radio_print(const u_char *p, u_int length, u_int caplen) { #define BITNO_32(x) (((x) >> 16) ? 16 + BITNO_16((x) >> 16) : BITNO_16((x))) #define BITNO_16(x) (((x) >> 8) ? 8 + BITNO_8((x) >> 8) : BITNO_8((x))) #define BITNO_8(x) (((x) >> 4) ? 4 + BITNO_4((x) >> 4) : BITNO_4((x))) #define BITNO_4(x) (((x) >> 2) ? 2 + BITNO_2((x) >> 2) : BITNO_2((x))) #define BITNO_2(x) (((x) & 2) ? 1 : 0) #define BIT(n) (1 << n) #define IS_EXTENDED(__p) \ (EXTRACT_LE_32BITS(__p) & BIT(IEEE80211_RADIOTAP_EXT)) != 0 struct cpack_state cpacker; struct ieee80211_radiotap_header *hdr; u_int32_t present, next_present; u_int32_t *presentp, *last_presentp; enum ieee80211_radiotap_type bit; int bit0; const u_char *iter; u_int len; int pad; if (caplen < sizeof(*hdr)) { printf("[|802.11]"); return caplen; } hdr = (struct ieee80211_radiotap_header *)p; len = EXTRACT_LE_16BITS(&hdr->it_len); if (caplen < len) { printf("[|802.11]"); return caplen; } for (last_presentp = &hdr->it_present; IS_EXTENDED(last_presentp) && (u_char*)(last_presentp + 1) <= p + len; last_presentp++); /* are there more bitmap extensions than bytes in header? */ if (IS_EXTENDED(last_presentp)) { printf("[|802.11]"); return caplen; } iter = (u_char*)(last_presentp + 1); if (cpack_init(&cpacker, (u_int8_t*)iter, len - (iter - p)) != 0) { /* XXX */ printf("[|802.11]"); return caplen; } /* Assume no Atheros padding between 802.11 header and body */ pad = 0; for (bit0 = 0, presentp = &hdr->it_present; presentp <= last_presentp; presentp++, bit0 += 32) { for (present = EXTRACT_LE_32BITS(presentp); present; present = next_present) { /* clear the least significant bit that is set */ next_present = present & (present - 1); /* extract the least significant bit that is set */ bit = (enum ieee80211_radiotap_type) (bit0 + BITNO_32(present ^ next_present)); if (print_radiotap_field(&cpacker, bit, &pad) != 0) goto out; } } out: return len + ieee802_11_print(p + len, length - len, caplen - len, pad); #undef BITNO_32 #undef BITNO_16 #undef BITNO_8 #undef BITNO_4 #undef BITNO_2 #undef BIT } static u_int ieee802_11_avs_radio_print(const u_char *p, u_int length, u_int caplen) { u_int32_t caphdr_len; if (caplen < 8) { printf("[|802.11]"); return caplen; } caphdr_len = EXTRACT_32BITS(p + 4); if (caphdr_len < 8) { /* * Yow! The capture header length is claimed not * to be large enough to include even the version * cookie or capture header length! */ printf("[|802.11]"); return caplen; } if (caplen < caphdr_len) { printf("[|802.11]"); return caplen; } return caphdr_len + ieee802_11_print(p + caphdr_len, length - caphdr_len, caplen - caphdr_len, 0); } #define PRISM_HDR_LEN 144 #define WLANCAP_MAGIC_COOKIE_BASE 0x80211000 #define WLANCAP_MAGIC_COOKIE_V1 0x80211001 #define WLANCAP_MAGIC_COOKIE_V2 0x80211002 /* * For DLT_PRISM_HEADER; like DLT_IEEE802_11, but with an extra header, * containing information such as radio information, which we * currently ignore. * * If, however, the packet begins with WLANCAP_MAGIC_COOKIE_V1 or * WLANCAP_MAGIC_COOKIE_V2, it's really DLT_IEEE802_11_RADIO_AVS * (currently, on Linux, there's no ARPHRD_ type for * DLT_IEEE802_11_RADIO_AVS, as there is a ARPHRD_IEEE80211_PRISM * for DLT_PRISM_HEADER, so ARPHRD_IEEE80211_PRISM is used for * the AVS header, and the first 4 bytes of the header are used to * indicate whether it's a Prism header or an AVS header). */ u_int prism_if_print(const struct pcap_pkthdr *h, const u_char *p) { u_int caplen = h->caplen; u_int length = h->len; u_int32_t msgcode; if (caplen < 4) { printf("[|802.11]"); return caplen; } msgcode = EXTRACT_32BITS(p); if (msgcode == WLANCAP_MAGIC_COOKIE_V1 || msgcode == WLANCAP_MAGIC_COOKIE_V2) return ieee802_11_avs_radio_print(p, length, caplen); if (caplen < PRISM_HDR_LEN) { printf("[|802.11]"); return caplen; } return PRISM_HDR_LEN + ieee802_11_print(p + PRISM_HDR_LEN, length - PRISM_HDR_LEN, caplen - PRISM_HDR_LEN, 0); } /* * For DLT_IEEE802_11_RADIO; like DLT_IEEE802_11, but with an extra * header, containing information such as radio information. */ u_int ieee802_11_radio_if_print(const struct pcap_pkthdr *h, const u_char *p) { return ieee802_11_radio_print(p, h->len, h->caplen); } /* * For DLT_IEEE802_11_RADIO_AVS; like DLT_IEEE802_11, but with an * extra header, containing information such as radio information, * which we currently ignore. */ u_int ieee802_11_radio_avs_if_print(const struct pcap_pkthdr *h, const u_char *p) { return ieee802_11_avs_radio_print(p, h->len, h->caplen); }