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-rw-r--r--freebsd/contrib/tcpdump/print-802_11.c2389
1 files changed, 2389 insertions, 0 deletions
diff --git a/freebsd/contrib/tcpdump/print-802_11.c b/freebsd/contrib/tcpdump/print-802_11.c
new file mode 100644
index 00000000..d0dee658
--- /dev/null
+++ b/freebsd/contrib/tcpdump/print-802_11.c
@@ -0,0 +1,2389 @@
+#include <machine/rtems-bsd-user-space.h>
+
+/*
+ * 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 1.49 2007-12-29 23:25:02 guy Exp $ (LBL)";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+#include <pcap.h>
+#include <string.h>
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "ethertype.h"
+
+#include "extract.h"
+
+#include "cpack.h"
+
+#include "ieee802_11.h"
+#include "ieee802_11_radio.h"
+
+/* Radiotap state */
+/* This is used to save state when parsing/processing parameters */
+struct radiotap_state
+{
+ u_int32_t present;
+
+ u_int8_t rate;
+};
+
+#define PRINT_SSID(p) \
+ if (p.ssid_present) { \
+ printf(" ("); \
+ fn_print(p.ssid.ssid, NULL); \
+ printf(")"); \
+ }
+
+#define PRINT_RATE(_sep, _r, _suf) \
+ printf("%s%2.1f%s", _sep, (.5 * ((_r) & 0x7f)), _suf)
+#define PRINT_RATES(p) \
+ if (p.rates_present) { \
+ 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]"); \
+ }
+
+#define PRINT_DS_CHANNEL(p) \
+ if (p.ds_present) \
+ printf(" CH: %u", p.ds.channel); \
+ printf("%s", \
+ CAPABILITY_PRIVACY(p.capability_info) ? ", PRIVACY" : "" );
+
+#define MAX_MCS_INDEX 76
+
+/*
+ * Indices are:
+ *
+ * the MCS index (0-76);
+ *
+ * 0 for 20 MHz, 1 for 40 MHz;
+ *
+ * 0 for a long guard interval, 1 for a short guard interval.
+ */
+static const float ieee80211_float_htrates[MAX_MCS_INDEX+1][2][2] = {
+ /* MCS 0 */
+ { /* 20 Mhz */ { 6.5, /* SGI */ 7.2, },
+ /* 40 Mhz */ { 13.5, /* SGI */ 15.0, },
+ },
+
+ /* MCS 1 */
+ { /* 20 Mhz */ { 13.0, /* SGI */ 14.4, },
+ /* 40 Mhz */ { 27.0, /* SGI */ 30.0, },
+ },
+
+ /* MCS 2 */
+ { /* 20 Mhz */ { 19.5, /* SGI */ 21.7, },
+ /* 40 Mhz */ { 40.5, /* SGI */ 45.0, },
+ },
+
+ /* MCS 3 */
+ { /* 20 Mhz */ { 26.0, /* SGI */ 28.9, },
+ /* 40 Mhz */ { 54.0, /* SGI */ 60.0, },
+ },
+
+ /* MCS 4 */
+ { /* 20 Mhz */ { 39.0, /* SGI */ 43.3, },
+ /* 40 Mhz */ { 81.0, /* SGI */ 90.0, },
+ },
+
+ /* MCS 5 */
+ { /* 20 Mhz */ { 52.0, /* SGI */ 57.8, },
+ /* 40 Mhz */ { 108.0, /* SGI */ 120.0, },
+ },
+
+ /* MCS 6 */
+ { /* 20 Mhz */ { 58.5, /* SGI */ 65.0, },
+ /* 40 Mhz */ { 121.5, /* SGI */ 135.0, },
+ },
+
+ /* MCS 7 */
+ { /* 20 Mhz */ { 65.0, /* SGI */ 72.2, },
+ /* 40 Mhz */ { 135.0, /* SGI */ 150.0, },
+ },
+
+ /* MCS 8 */
+ { /* 20 Mhz */ { 13.0, /* SGI */ 14.4, },
+ /* 40 Mhz */ { 27.0, /* SGI */ 30.0, },
+ },
+
+ /* MCS 9 */
+ { /* 20 Mhz */ { 26.0, /* SGI */ 28.9, },
+ /* 40 Mhz */ { 54.0, /* SGI */ 60.0, },
+ },
+
+ /* MCS 10 */
+ { /* 20 Mhz */ { 39.0, /* SGI */ 43.3, },
+ /* 40 Mhz */ { 81.0, /* SGI */ 90.0, },
+ },
+
+ /* MCS 11 */
+ { /* 20 Mhz */ { 52.0, /* SGI */ 57.8, },
+ /* 40 Mhz */ { 108.0, /* SGI */ 120.0, },
+ },
+
+ /* MCS 12 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 13 */
+ { /* 20 Mhz */ { 104.0, /* SGI */ 115.6, },
+ /* 40 Mhz */ { 216.0, /* SGI */ 240.0, },
+ },
+
+ /* MCS 14 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 15 */
+ { /* 20 Mhz */ { 130.0, /* SGI */ 144.4, },
+ /* 40 Mhz */ { 270.0, /* SGI */ 300.0, },
+ },
+
+ /* MCS 16 */
+ { /* 20 Mhz */ { 19.5, /* SGI */ 21.7, },
+ /* 40 Mhz */ { 40.5, /* SGI */ 45.0, },
+ },
+
+ /* MCS 17 */
+ { /* 20 Mhz */ { 39.0, /* SGI */ 43.3, },
+ /* 40 Mhz */ { 81.0, /* SGI */ 90.0, },
+ },
+
+ /* MCS 18 */
+ { /* 20 Mhz */ { 58.5, /* SGI */ 65.0, },
+ /* 40 Mhz */ { 121.5, /* SGI */ 135.0, },
+ },
+
+ /* MCS 19 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 20 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 21 */
+ { /* 20 Mhz */ { 156.0, /* SGI */ 173.3, },
+ /* 40 Mhz */ { 324.0, /* SGI */ 360.0, },
+ },
+
+ /* MCS 22 */
+ { /* 20 Mhz */ { 175.5, /* SGI */ 195.0, },
+ /* 40 Mhz */ { 364.5, /* SGI */ 405.0, },
+ },
+
+ /* MCS 23 */
+ { /* 20 Mhz */ { 195.0, /* SGI */ 216.7, },
+ /* 40 Mhz */ { 405.0, /* SGI */ 450.0, },
+ },
+
+ /* MCS 24 */
+ { /* 20 Mhz */ { 26.0, /* SGI */ 28.9, },
+ /* 40 Mhz */ { 54.0, /* SGI */ 60.0, },
+ },
+
+ /* MCS 25 */
+ { /* 20 Mhz */ { 52.0, /* SGI */ 57.8, },
+ /* 40 Mhz */ { 108.0, /* SGI */ 120.0, },
+ },
+
+ /* MCS 26 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 27 */
+ { /* 20 Mhz */ { 104.0, /* SGI */ 115.6, },
+ /* 40 Mhz */ { 216.0, /* SGI */ 240.0, },
+ },
+
+ /* MCS 28 */
+ { /* 20 Mhz */ { 156.0, /* SGI */ 173.3, },
+ /* 40 Mhz */ { 324.0, /* SGI */ 360.0, },
+ },
+
+ /* MCS 29 */
+ { /* 20 Mhz */ { 208.0, /* SGI */ 231.1, },
+ /* 40 Mhz */ { 432.0, /* SGI */ 480.0, },
+ },
+
+ /* MCS 30 */
+ { /* 20 Mhz */ { 234.0, /* SGI */ 260.0, },
+ /* 40 Mhz */ { 486.0, /* SGI */ 540.0, },
+ },
+
+ /* MCS 31 */
+ { /* 20 Mhz */ { 260.0, /* SGI */ 288.9, },
+ /* 40 Mhz */ { 540.0, /* SGI */ 600.0, },
+ },
+
+ /* MCS 32 */
+ { /* 20 Mhz */ { 0.0, /* SGI */ 0.0, }, /* not valid */
+ /* 40 Mhz */ { 6.0, /* SGI */ 6.7, },
+ },
+
+ /* MCS 33 */
+ { /* 20 Mhz */ { 39.0, /* SGI */ 43.3, },
+ /* 40 Mhz */ { 81.0, /* SGI */ 90.0, },
+ },
+
+ /* MCS 34 */
+ { /* 20 Mhz */ { 52.0, /* SGI */ 57.8, },
+ /* 40 Mhz */ { 108.0, /* SGI */ 120.0, },
+ },
+
+ /* MCS 35 */
+ { /* 20 Mhz */ { 65.0, /* SGI */ 72.2, },
+ /* 40 Mhz */ { 135.0, /* SGI */ 150.0, },
+ },
+
+ /* MCS 36 */
+ { /* 20 Mhz */ { 58.5, /* SGI */ 65.0, },
+ /* 40 Mhz */ { 121.5, /* SGI */ 135.0, },
+ },
+
+ /* MCS 37 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 38 */
+ { /* 20 Mhz */ { 97.5, /* SGI */ 108.3, },
+ /* 40 Mhz */ { 202.5, /* SGI */ 225.0, },
+ },
+
+ /* MCS 39 */
+ { /* 20 Mhz */ { 52.0, /* SGI */ 57.8, },
+ /* 40 Mhz */ { 108.0, /* SGI */ 120.0, },
+ },
+
+ /* MCS 40 */
+ { /* 20 Mhz */ { 65.0, /* SGI */ 72.2, },
+ /* 40 Mhz */ { 135.0, /* SGI */ 150.0, },
+ },
+
+ /* MCS 41 */
+ { /* 20 Mhz */ { 65.0, /* SGI */ 72.2, },
+ /* 40 Mhz */ { 135.0, /* SGI */ 150.0, },
+ },
+
+ /* MCS 42 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 43 */
+ { /* 20 Mhz */ { 91.0, /* SGI */ 101.1, },
+ /* 40 Mhz */ { 189.0, /* SGI */ 210.0, },
+ },
+
+ /* MCS 44 */
+ { /* 20 Mhz */ { 91.0, /* SGI */ 101.1, },
+ /* 40 Mhz */ { 189.0, /* SGI */ 210.0, },
+ },
+
+ /* MCS 45 */
+ { /* 20 Mhz */ { 104.0, /* SGI */ 115.6, },
+ /* 40 Mhz */ { 216.0, /* SGI */ 240.0, },
+ },
+
+ /* MCS 46 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 47 */
+ { /* 20 Mhz */ { 97.5, /* SGI */ 108.3, },
+ /* 40 Mhz */ { 202.5, /* SGI */ 225.0, },
+ },
+
+ /* MCS 48 */
+ { /* 20 Mhz */ { 97.5, /* SGI */ 108.3, },
+ /* 40 Mhz */ { 202.5, /* SGI */ 225.0, },
+ },
+
+ /* MCS 49 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 50 */
+ { /* 20 Mhz */ { 136.5, /* SGI */ 151.7, },
+ /* 40 Mhz */ { 283.5, /* SGI */ 315.0, },
+ },
+
+ /* MCS 51 */
+ { /* 20 Mhz */ { 136.5, /* SGI */ 151.7, },
+ /* 40 Mhz */ { 283.5, /* SGI */ 315.0, },
+ },
+
+ /* MCS 52 */
+ { /* 20 Mhz */ { 156.0, /* SGI */ 173.3, },
+ /* 40 Mhz */ { 324.0, /* SGI */ 360.0, },
+ },
+
+ /* MCS 53 */
+ { /* 20 Mhz */ { 65.0, /* SGI */ 72.2, },
+ /* 40 Mhz */ { 135.0, /* SGI */ 150.0, },
+ },
+
+ /* MCS 54 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 55 */
+ { /* 20 Mhz */ { 91.0, /* SGI */ 101.1, },
+ /* 40 Mhz */ { 189.0, /* SGI */ 210.0, },
+ },
+
+ /* MCS 56 */
+ { /* 20 Mhz */ { 78.0, /* SGI */ 86.7, },
+ /* 40 Mhz */ { 162.0, /* SGI */ 180.0, },
+ },
+
+ /* MCS 57 */
+ { /* 20 Mhz */ { 91.0, /* SGI */ 101.1, },
+ /* 40 Mhz */ { 189.0, /* SGI */ 210.0, },
+ },
+
+ /* MCS 58 */
+ { /* 20 Mhz */ { 104.0, /* SGI */ 115.6, },
+ /* 40 Mhz */ { 216.0, /* SGI */ 240.0, },
+ },
+
+ /* MCS 59 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 60 */
+ { /* 20 Mhz */ { 104.0, /* SGI */ 115.6, },
+ /* 40 Mhz */ { 216.0, /* SGI */ 240.0, },
+ },
+
+ /* MCS 61 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 62 */
+ { /* 20 Mhz */ { 130.0, /* SGI */ 144.4, },
+ /* 40 Mhz */ { 270.0, /* SGI */ 300.0, },
+ },
+
+ /* MCS 63 */
+ { /* 20 Mhz */ { 130.0, /* SGI */ 144.4, },
+ /* 40 Mhz */ { 270.0, /* SGI */ 300.0, },
+ },
+
+ /* MCS 64 */
+ { /* 20 Mhz */ { 143.0, /* SGI */ 158.9, },
+ /* 40 Mhz */ { 297.0, /* SGI */ 330.0, },
+ },
+
+ /* MCS 65 */
+ { /* 20 Mhz */ { 97.5, /* SGI */ 108.3, },
+ /* 40 Mhz */ { 202.5, /* SGI */ 225.0, },
+ },
+
+ /* MCS 66 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 67 */
+ { /* 20 Mhz */ { 136.5, /* SGI */ 151.7, },
+ /* 40 Mhz */ { 283.5, /* SGI */ 315.0, },
+ },
+
+ /* MCS 68 */
+ { /* 20 Mhz */ { 117.0, /* SGI */ 130.0, },
+ /* 40 Mhz */ { 243.0, /* SGI */ 270.0, },
+ },
+
+ /* MCS 69 */
+ { /* 20 Mhz */ { 136.5, /* SGI */ 151.7, },
+ /* 40 Mhz */ { 283.5, /* SGI */ 315.0, },
+ },
+
+ /* MCS 70 */
+ { /* 20 Mhz */ { 156.0, /* SGI */ 173.3, },
+ /* 40 Mhz */ { 324.0, /* SGI */ 360.0, },
+ },
+
+ /* MCS 71 */
+ { /* 20 Mhz */ { 175.5, /* SGI */ 195.0, },
+ /* 40 Mhz */ { 364.5, /* SGI */ 405.0, },
+ },
+
+ /* MCS 72 */
+ { /* 20 Mhz */ { 156.0, /* SGI */ 173.3, },
+ /* 40 Mhz */ { 324.0, /* SGI */ 360.0, },
+ },
+
+ /* MCS 73 */
+ { /* 20 Mhz */ { 175.5, /* SGI */ 195.0, },
+ /* 40 Mhz */ { 364.5, /* SGI */ 405.0, },
+ },
+
+ /* MCS 74 */
+ { /* 20 Mhz */ { 195.0, /* SGI */ 216.7, },
+ /* 40 Mhz */ { 405.0, /* SGI */ 450.0, },
+ },
+
+ /* MCS 75 */
+ { /* 20 Mhz */ { 195.0, /* SGI */ 216.7, },
+ /* 40 Mhz */ { 405.0, /* SGI */ 450.0, },
+ },
+
+ /* MCS 76 */
+ { /* 20 Mhz */ { 214.5, /* SGI */ 238.3, },
+ /* 40 Mhz */ { 445.5, /* SGI */ 495.0, },
+ },
+};
+
+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[] = {
+ "Successful", /* 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 */
+ "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 */
+ "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 int
+parse_elements(struct mgmt_body_t *pbody, const u_char *p, int offset,
+ u_int length)
+{
+ u_int elementlen;
+ struct ssid_t ssid;
+ struct challenge_t challenge;
+ struct rates_t rates;
+ struct ds_t ds;
+ struct cf_t cf;
+ struct tim_t tim;
+
+ /*
+ * We haven't seen any elements yet.
+ */
+ pbody->challenge_present = 0;
+ pbody->ssid_present = 0;
+ pbody->rates_present = 0;
+ pbody->ds_present = 0;
+ pbody->cf_present = 0;
+ pbody->tim_present = 0;
+
+ while (length != 0) {
+ if (!TTEST2(*(p + offset), 1))
+ return 0;
+ if (length < 1)
+ return 0;
+ switch (*(p + offset)) {
+ case E_SSID:
+ if (!TTEST2(*(p + offset), 2))
+ return 0;
+ if (length < 2)
+ return 0;
+ memcpy(&ssid, p + offset, 2);
+ offset += 2;
+ length -= 2;
+ if (ssid.length != 0) {
+ if (ssid.length > sizeof(ssid.ssid) - 1)
+ return 0;
+ if (!TTEST2(*(p + offset), ssid.length))
+ return 0;
+ if (length < ssid.length)
+ return 0;
+ memcpy(&ssid.ssid, p + offset, ssid.length);
+ offset += ssid.length;
+ length -= ssid.length;
+ }
+ ssid.ssid[ssid.length] = '\0';
+ /*
+ * Present and not truncated.
+ *
+ * If we haven't already seen an SSID IE,
+ * copy this one, otherwise ignore this one,
+ * so we later report the first one we saw.
+ */
+ if (!pbody->ssid_present) {
+ pbody->ssid = ssid;
+ pbody->ssid_present = 1;
+ }
+ break;
+ case E_CHALLENGE:
+ if (!TTEST2(*(p + offset), 2))
+ return 0;
+ if (length < 2)
+ return 0;
+ memcpy(&challenge, p + offset, 2);
+ offset += 2;
+ length -= 2;
+ if (challenge.length != 0) {
+ if (challenge.length >
+ sizeof(challenge.text) - 1)
+ return 0;
+ if (!TTEST2(*(p + offset), challenge.length))
+ return 0;
+ if (length < challenge.length)
+ return 0;
+ memcpy(&challenge.text, p + offset,
+ challenge.length);
+ offset += challenge.length;
+ length -= challenge.length;
+ }
+ challenge.text[challenge.length] = '\0';
+ /*
+ * Present and not truncated.
+ *
+ * If we haven't already seen a challenge IE,
+ * copy this one, otherwise ignore this one,
+ * so we later report the first one we saw.
+ */
+ if (!pbody->challenge_present) {
+ pbody->challenge = challenge;
+ pbody->challenge_present = 1;
+ }
+ break;
+ case E_RATES:
+ if (!TTEST2(*(p + offset), 2))
+ return 0;
+ if (length < 2)
+ return 0;
+ memcpy(&rates, p + offset, 2);
+ offset += 2;
+ length -= 2;
+ if (rates.length != 0) {
+ if (rates.length > sizeof rates.rate)
+ return 0;
+ if (!TTEST2(*(p + offset), rates.length))
+ return 0;
+ if (length < rates.length)
+ return 0;
+ memcpy(&rates.rate, p + offset, rates.length);
+ offset += rates.length;
+ length -= rates.length;
+ }
+ /*
+ * Present and not truncated.
+ *
+ * If we haven't already seen a rates IE,
+ * copy this one if it's not zero-length,
+ * otherwise ignore this one, so we later
+ * report the first one we saw.
+ *
+ * We ignore zero-length rates IEs as some
+ * devices seem to put a zero-length rates
+ * IE, followed by an SSID IE, followed by
+ * a non-zero-length rates IE into frames,
+ * even though IEEE Std 802.11-2007 doesn't
+ * seem to indicate that a zero-length rates
+ * IE is valid.
+ */
+ if (!pbody->rates_present && rates.length != 0) {
+ pbody->rates = rates;
+ pbody->rates_present = 1;
+ }
+ break;
+ case E_DS:
+ if (!TTEST2(*(p + offset), 3))
+ return 0;
+ if (length < 3)
+ return 0;
+ memcpy(&ds, p + offset, 3);
+ offset += 3;
+ length -= 3;
+ /*
+ * Present and not truncated.
+ *
+ * If we haven't already seen a DS IE,
+ * copy this one, otherwise ignore this one,
+ * so we later report the first one we saw.
+ */
+ if (!pbody->ds_present) {
+ pbody->ds = ds;
+ pbody->ds_present = 1;
+ }
+ break;
+ case E_CF:
+ if (!TTEST2(*(p + offset), 8))
+ return 0;
+ if (length < 8)
+ return 0;
+ memcpy(&cf, p + offset, 8);
+ offset += 8;
+ length -= 8;
+ /*
+ * Present and not truncated.
+ *
+ * If we haven't already seen a CF IE,
+ * copy this one, otherwise ignore this one,
+ * so we later report the first one we saw.
+ */
+ if (!pbody->cf_present) {
+ pbody->cf = cf;
+ pbody->cf_present = 1;
+ }
+ break;
+ case E_TIM:
+ if (!TTEST2(*(p + offset), 2))
+ return 0;
+ if (length < 2)
+ return 0;
+ memcpy(&tim, p + offset, 2);
+ offset += 2;
+ length -= 2;
+ if (!TTEST2(*(p + offset), 3))
+ return 0;
+ if (length < 3)
+ return 0;
+ memcpy(&tim.count, p + offset, 3);
+ offset += 3;
+ length -= 3;
+
+ if (tim.length <= 3)
+ break;
+ if (tim.length - 3 > (int)sizeof tim.bitmap)
+ return 0;
+ if (!TTEST2(*(p + offset), tim.length - 3))
+ return 0;
+ if (length < (u_int)(tim.length - 3))
+ return 0;
+ memcpy(tim.bitmap, p + (tim.length - 3),
+ (tim.length - 3));
+ offset += tim.length - 3;
+ length -= tim.length - 3;
+ /*
+ * Present and not truncated.
+ *
+ * If we haven't already seen a TIM IE,
+ * copy this one, otherwise ignore this one,
+ * so we later report the first one we saw.
+ */
+ if (!pbody->tim_present) {
+ pbody->tim = tim;
+ pbody->tim_present = 1;
+ }
+ break;
+ default:
+#if 0
+ printf("(1) unhandled element_id (%d) ",
+ *(p + offset));
+#endif
+ if (!TTEST2(*(p + offset), 2))
+ return 0;
+ if (length < 2)
+ return 0;
+ elementlen = *(p + offset + 1);
+ if (!TTEST2(*(p + offset + 2), elementlen))
+ return 0;
+ if (length < elementlen + 2)
+ return 0;
+ offset += elementlen + 2;
+ length -= elementlen + 2;
+ break;
+ }
+ }
+
+ /* No problems found. */
+ return 1;
+}
+
+/*********************************************************************************
+ * Print Handle functions for the management frame types
+ *********************************************************************************/
+
+static int
+handle_beacon(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, IEEE802_11_TSTAMP_LEN + IEEE802_11_BCNINT_LEN +
+ IEEE802_11_CAPINFO_LEN))
+ return 0;
+ if (length < 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;
+ length -= IEEE802_11_TSTAMP_LEN;
+ pbody.beacon_interval = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_BCNINT_LEN;
+ length -= IEEE802_11_BCNINT_LEN;
+ pbody.capability_info = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_CAPINFO_LEN;
+ length -= IEEE802_11_CAPINFO_LEN;
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ PRINT_SSID(pbody);
+ PRINT_RATES(pbody);
+ printf(" %s",
+ CAPABILITY_ESS(pbody.capability_info) ? "ESS" : "IBSS");
+ PRINT_DS_CHANNEL(pbody);
+
+ return ret;
+}
+
+static int
+handle_assoc_request(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, IEEE802_11_CAPINFO_LEN + IEEE802_11_LISTENINT_LEN))
+ return 0;
+ if (length < IEEE802_11_CAPINFO_LEN + IEEE802_11_LISTENINT_LEN)
+ return 0;
+ pbody.capability_info = EXTRACT_LE_16BITS(p);
+ offset += IEEE802_11_CAPINFO_LEN;
+ length -= IEEE802_11_CAPINFO_LEN;
+ pbody.listen_interval = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_LISTENINT_LEN;
+ length -= IEEE802_11_LISTENINT_LEN;
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ PRINT_SSID(pbody);
+ PRINT_RATES(pbody);
+ return ret;
+}
+
+static int
+handle_assoc_response(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, IEEE802_11_CAPINFO_LEN + IEEE802_11_STATUS_LEN +
+ IEEE802_11_AID_LEN))
+ return 0;
+ if (length < 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;
+ length -= IEEE802_11_CAPINFO_LEN;
+ pbody.status_code = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_STATUS_LEN;
+ length -= IEEE802_11_STATUS_LEN;
+ pbody.aid = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_AID_LEN;
+ length -= IEEE802_11_AID_LEN;
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ 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 ret;
+}
+
+static int
+handle_reassoc_request(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, IEEE802_11_CAPINFO_LEN + IEEE802_11_LISTENINT_LEN +
+ IEEE802_11_AP_LEN))
+ return 0;
+ if (length < 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;
+ length -= IEEE802_11_CAPINFO_LEN;
+ pbody.listen_interval = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_LISTENINT_LEN;
+ length -= IEEE802_11_LISTENINT_LEN;
+ memcpy(&pbody.ap, p+offset, IEEE802_11_AP_LEN);
+ offset += IEEE802_11_AP_LEN;
+ length -= IEEE802_11_AP_LEN;
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ PRINT_SSID(pbody);
+ printf(" AP : %s", etheraddr_string( pbody.ap ));
+
+ return ret;
+}
+
+static int
+handle_reassoc_response(const u_char *p, u_int length)
+{
+ /* Same as a Association Reponse */
+ return handle_assoc_response(p, length);
+}
+
+static int
+handle_probe_request(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ PRINT_SSID(pbody);
+ PRINT_RATES(pbody);
+
+ return ret;
+}
+
+static int
+handle_probe_response(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, IEEE802_11_TSTAMP_LEN + IEEE802_11_BCNINT_LEN +
+ IEEE802_11_CAPINFO_LEN))
+ return 0;
+ if (length < 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;
+ length -= IEEE802_11_TSTAMP_LEN;
+ pbody.beacon_interval = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_BCNINT_LEN;
+ length -= IEEE802_11_BCNINT_LEN;
+ pbody.capability_info = EXTRACT_LE_16BITS(p+offset);
+ offset += IEEE802_11_CAPINFO_LEN;
+ length -= IEEE802_11_CAPINFO_LEN;
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ PRINT_SSID(pbody);
+ PRINT_RATES(pbody);
+ PRINT_DS_CHANNEL(pbody);
+
+ return ret;
+}
+
+static int
+handle_atim(void)
+{
+ /* the frame body for ATIM is null. */
+ return 1;
+}
+
+static int
+handle_disassoc(const u_char *p, u_int length)
+{
+ struct mgmt_body_t pbody;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, IEEE802_11_REASON_LEN))
+ return 0;
+ if (length < 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, u_int length)
+{
+ struct mgmt_body_t pbody;
+ int offset = 0;
+ int ret;
+
+ memset(&pbody, 0, sizeof(pbody));
+
+ if (!TTEST2(*p, 6))
+ return 0;
+ if (length < 6)
+ return 0;
+ pbody.auth_alg = EXTRACT_LE_16BITS(p);
+ offset += 2;
+ length -= 2;
+ pbody.auth_trans_seq_num = EXTRACT_LE_16BITS(p + offset);
+ offset += 2;
+ length -= 2;
+ pbody.status_code = EXTRACT_LE_16BITS(p + offset);
+ offset += 2;
+ length -= 2;
+
+ ret = parse_elements(&pbody, p, offset, length);
+
+ 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 ret;
+ }
+ 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 ret;
+}
+
+static int
+handle_deauth(const struct mgmt_header_t *pmh, const u_char *p, u_int length)
+{
+ 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;
+ if (length < IEEE802_11_REASON_LEN)
+ return 0;
+ pbody.reason_code = EXTRACT_LE_16BITS(p);
+ offset += IEEE802_11_REASON_LEN;
+ length -= 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)) \
+)
+
+#define PRINT_MESH_ACTION(v) (\
+ (v) == 0 ? printf("MeshLink") : \
+ (v) == 1 ? printf("HWMP") : \
+ (v) == 2 ? printf("Gate Announcement") : \
+ (v) == 3 ? printf("Congestion Control") : \
+ (v) == 4 ? printf("MCCA Setup Request") : \
+ (v) == 5 ? printf("MCCA Setup Reply") : \
+ (v) == 6 ? printf("MCCA Advertisement Request") : \
+ (v) == 7 ? printf("MCCA Advertisement") : \
+ (v) == 8 ? printf("MCCA Teardown") : \
+ (v) == 9 ? printf("TBTT Adjustment Request") : \
+ (v) == 10 ? printf("TBTT Adjustment Response") : \
+ printf("Act#%d", (v)) \
+)
+#define PRINT_MULTIHOP_ACTION(v) (\
+ (v) == 0 ? printf("Proxy Update") : \
+ (v) == 1 ? printf("Proxy Update Confirmation") : \
+ printf("Act#%d", (v)) \
+)
+#define PRINT_SELFPROT_ACTION(v) (\
+ (v) == 1 ? printf("Peering Open") : \
+ (v) == 2 ? printf("Peering Confirm") : \
+ (v) == 3 ? printf("Peering Close") : \
+ (v) == 4 ? printf("Group Key Inform") : \
+ (v) == 5 ? printf("Group Key Acknowledge") : \
+ printf("Act#%d", (v)) \
+)
+
+static int
+handle_action(const struct mgmt_header_t *pmh, const u_char *p, u_int length)
+{
+ if (!TTEST2(*p, 2))
+ return 0;
+ if (length < 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("MeshAction "); PRINT_MESH_ACTION(p[1]); break;
+ case 14:
+ printf("MultiohopAction ");
+ PRINT_MULTIHOP_ACTION(p[1]); break;
+ case 15:
+ printf("SelfprotectAction ");
+ PRINT_SELFPROT_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, u_int length)
+{
+ switch (FC_SUBTYPE(fc)) {
+ case ST_ASSOC_REQUEST:
+ printf("Assoc Request");
+ return handle_assoc_request(p, length);
+ case ST_ASSOC_RESPONSE:
+ printf("Assoc Response");
+ return handle_assoc_response(p, length);
+ case ST_REASSOC_REQUEST:
+ printf("ReAssoc Request");
+ return handle_reassoc_request(p, length);
+ case ST_REASSOC_RESPONSE:
+ printf("ReAssoc Response");
+ return handle_reassoc_response(p, length);
+ case ST_PROBE_REQUEST:
+ printf("Probe Request");
+ return handle_probe_request(p, length);
+ case ST_PROBE_RESPONSE:
+ printf("Probe Response");
+ return handle_probe_response(p, length);
+ case ST_BEACON:
+ printf("Beacon");
+ return handle_beacon(p, length);
+ case ST_ATIM:
+ printf("ATIM");
+ return handle_atim();
+ case ST_DISASSOC:
+ printf("Disassociation");
+ return handle_disassoc(p, length);
+ 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, length);
+ case ST_DEAUTH:
+ printf("DeAuthentication");
+ return handle_deauth(pmh, p, length);
+ break;
+ case ST_ACTION:
+ printf("Action");
+ return handle_action(pmh, p, length);
+ 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_CONTROL_WRAPPER:
+ printf("Control Wrapper");
+ /* XXX - requires special handling */
+ break;
+ 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 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 orig_caplen, int pad,
+ u_int fcslen)
+{
+ u_int16_t fc;
+ u_int caplen, hdrlen, meshdrlen;
+ const u_int8_t *src, *dst;
+ u_short extracted_ethertype;
+
+ caplen = orig_caplen;
+ /* Remove FCS, if present */
+ if (length < fcslen) {
+ printf("[|802.11]");
+ return caplen;
+ }
+ length -= fcslen;
+ if (caplen > length) {
+ /* Amount of FCS in actual packet data, if any */
+ fcslen = caplen - length;
+ caplen -= fcslen;
+ snapend -= fcslen;
+ }
+
+ if (caplen < IEEE802_11_FC_LEN) {
+ printf("[|802.11]");
+ return orig_caplen;
+ }
+
+ fc = EXTRACT_LE_16BITS(p);
+ hdrlen = extract_header_length(fc);
+ if (pad)
+ hdrlen = roundup2(hdrlen, 4);
+ if (Hflag && 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, 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, length)) {
+ 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, 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, 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, u_int8_t *flags,
+ struct radiotap_state *state, u_int32_t presentflags)
+{
+ 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 (rc != 0)
+ break;
+ *flags = u.u8;
+ break;
+ case IEEE80211_RADIOTAP_RATE:
+ rc = cpack_uint8(s, &u.u8);
+ if (rc != 0)
+ break;
+
+ /* Save state rate */
+ state->rate = u.u8;
+ break;
+ 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:
+ case IEEE80211_RADIOTAP_RX_FLAGS:
+ 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;
+ case IEEE80211_RADIOTAP_MCS:
+ rc = cpack_uint8(s, &u.u8);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u2.u8);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &u3.u8);
+ break;
+ case IEEE80211_RADIOTAP_VENDOR_NAMESPACE: {
+ u_int8_t vns[3];
+ u_int16_t length;
+ u_int8_t subspace;
+
+ if ((cpack_align_and_reserve(s, 2)) == NULL) {
+ rc = -1;
+ break;
+ }
+
+ rc = cpack_uint8(s, &vns[0]);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &vns[1]);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &vns[2]);
+ if (rc != 0)
+ break;
+ rc = cpack_uint8(s, &subspace);
+ if (rc != 0)
+ break;
+ rc = cpack_uint16(s, &length);
+ if (rc != 0)
+ break;
+
+ /* Skip up to length */
+ s->c_next += length;
+ break;
+ }
+ default:
+ /* this bit indicates a field whose
+ * size we do not know, so we cannot
+ * proceed. Just print the bit number.
+ */
+ printf("[bit %u] ", bit);
+ return -1;
+ }
+
+ if (rc != 0) {
+ printf("[|802.11]");
+ return rc;
+ }
+
+ /* Preserve the state present flags */
+ state->present = presentflags;
+
+ switch (bit) {
+ case IEEE80211_RADIOTAP_CHANNEL:
+ /*
+ * If CHANNEL and XCHANNEL are both present, skip
+ * CHANNEL.
+ */
+ if (presentflags & (1 << IEEE80211_RADIOTAP_XCHANNEL))
+ break;
+ 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:
+ /*
+ * XXX On FreeBSD rate & 0x80 means we have an MCS. On
+ * Linux and AirPcap it does not. (What about
+ * Mac OS X, NetBSD, OpenBSD, and DragonFly BSD?)
+ *
+ * This is an issue either for proprietary extensions
+ * to 11a or 11g, which do exist, or for 11n
+ * implementations that stuff a rate value into
+ * this field, which also appear to exist.
+ *
+ * We currently handle that by assuming that
+ * if the 0x80 bit is set *and* the remaining
+ * bits have a value between 0 and 15 it's
+ * an MCS value, otherwise it's a rate. If
+ * there are cases where systems that use
+ * "0x80 + MCS index" for MCS indices > 15,
+ * or stuff a rate value here between 64 and
+ * 71.5 Mb/s in here, we'll need a preference
+ * setting. Such rates do exist, e.g. 11n
+ * MCS 7 at 20 MHz with a long guard interval.
+ */
+ if (u.u8 >= 0x80 && u.u8 <= 0x8f) {
+ /*
+ * XXX - we don't know the channel width
+ * or guard interval length, so we can't
+ * convert this to a data rate.
+ *
+ * If you want us to show a data rate,
+ * use the MCS field, not the Rate field;
+ * the MCS field includes not only the
+ * MCS index, it also includes bandwidth
+ * and guard interval information.
+ *
+ * XXX - can we get the channel width
+ * from XChannel and the guard interval
+ * information from Flags, at least on
+ * FreeBSD?
+ */
+ printf("MCS %u ", u.u8 & 0x7f);
+ } else
+ printf("%2.1f Mb/s ", .5*u.u8);
+ 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_RX_FLAGS:
+ /* Do nothing for now */
+ break;
+ case IEEE80211_RADIOTAP_XCHANNEL:
+ print_chaninfo(u2.u16, u.u32);
+ break;
+ case IEEE80211_RADIOTAP_MCS: {
+ static const char *bandwidth[4] = {
+ "20 MHz",
+ "40 MHz",
+ "20 MHz (L)",
+ "20 MHz (U)"
+ };
+ float htrate;
+
+ if (u.u8 & IEEE80211_RADIOTAP_MCS_MCS_INDEX_KNOWN) {
+ /*
+ * We know the MCS index.
+ */
+ if (u3.u8 <= MAX_MCS_INDEX) {
+ /*
+ * And it's in-range.
+ */
+ if (u.u8 & (IEEE80211_RADIOTAP_MCS_BANDWIDTH_KNOWN|IEEE80211_RADIOTAP_MCS_GUARD_INTERVAL_KNOWN)) {
+ /*
+ * And we know both the bandwidth and
+ * the guard interval, so we can look
+ * up the rate.
+ */
+ htrate =
+ ieee80211_float_htrates \
+ [u3.u8] \
+ [((u2.u8 & IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK) == IEEE80211_RADIOTAP_MCS_BANDWIDTH_40 ? 1 : 0)] \
+ [((u2.u8 & IEEE80211_RADIOTAP_MCS_SHORT_GI) ? 1 : 0)];
+ } else {
+ /*
+ * We don't know both the bandwidth
+ * and the guard interval, so we can
+ * only report the MCS index.
+ */
+ htrate = 0.0;
+ }
+ } else {
+ /*
+ * The MCS value is out of range.
+ */
+ htrate = 0.0;
+ }
+ if (htrate != 0.0) {
+ /*
+ * We have the rate.
+ * Print it.
+ */
+ printf("%.1f Mb/s MCS %u ", htrate, u3.u8);
+ } else {
+ /*
+ * We at least have the MCS index.
+ * Print it.
+ */
+ printf("MCS %u ", u3.u8);
+ }
+ }
+ if (u.u8 & IEEE80211_RADIOTAP_MCS_BANDWIDTH_KNOWN) {
+ printf("%s ",
+ bandwidth[u2.u8 & IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK]);
+ }
+ if (u.u8 & IEEE80211_RADIOTAP_MCS_GUARD_INTERVAL_KNOWN) {
+ printf("%s GI ",
+ (u2.u8 & IEEE80211_RADIOTAP_MCS_SHORT_GI) ?
+ "short" : "lon");
+ }
+ if (u.u8 & IEEE80211_RADIOTAP_MCS_HT_FORMAT_KNOWN) {
+ printf("%s ",
+ (u2.u8 & IEEE80211_RADIOTAP_MCS_HT_GREENFIELD) ?
+ "greenfield" : "mixed");
+ }
+ if (u.u8 & IEEE80211_RADIOTAP_MCS_FEC_TYPE_KNOWN) {
+ printf("%s FEC ",
+ (u2.u8 & IEEE80211_RADIOTAP_MCS_FEC_LDPC) ?
+ "LDPC" : "BCC");
+ }
+ 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) (1U << 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 presentflags = 0;
+ u_int32_t *presentp, *last_presentp;
+ enum ieee80211_radiotap_type bit;
+ int bit0;
+ const u_char *iter;
+ u_int len;
+ u_int8_t flags;
+ int pad;
+ u_int fcslen;
+ struct radiotap_state state;
+
+ 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 flags */
+ flags = 0;
+ /* Assume no Atheros padding between 802.11 header and body */
+ pad = 0;
+ /* Assume no FCS at end of frame */
+ fcslen = 0;
+ for (bit0 = 0, presentp = &hdr->it_present; presentp <= last_presentp;
+ presentp++, bit0 += 32) {
+ presentflags = EXTRACT_LE_32BITS(presentp);
+
+ /* Clear state. */
+ memset(&state, 0, sizeof(state));
+
+ 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, &flags, &state, presentflags) != 0)
+ goto out;
+ }
+ }
+
+out:
+ if (flags & IEEE80211_RADIOTAP_F_DATAPAD)
+ pad = 1; /* Atheros padding */
+ if (flags & IEEE80211_RADIOTAP_F_FCS)
+ fcslen = 4; /* FCS at end of packet */
+ return len + ieee802_11_print(p + len, length - len, caplen - len, pad,
+ fcslen);
+#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, 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, 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);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-30 19:11:41 +0000