1 /* $OpenBSD: print-iapp.c,v 1.3 2006/03/10 18:13:11 reyk Exp $ */ 2 3 /* 4 * Copyright (c) 2005 Reyk Floeter <reyk@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/param.h> 20 #include <sys/time.h> 21 #include <sys/socket.h> 22 #include <sys/file.h> 23 #include <sys/ioctl.h> 24 25 #include <net/if.h> 26 27 #include <netinet/in.h> 28 #include <netinet/in_systm.h> 29 #include <netinet/if_ether.h> 30 31 #include <net80211/ieee80211.h> 32 33 #include <pcap.h> 34 #include <stdio.h> 35 #include <string.h> 36 37 #include "addrtoname.h" 38 #include "interface.h" 39 #include "iapp.h" 40 41 const char *ieee80211_iapp_frame_type_name[] = 42 IEEE80211_IAPP_FRAME_TYPE_NAME; 43 44 extern int ieee80211_encap; 45 46 void 47 iapp_print(const u_char *p, u_int len) 48 { 49 struct ieee80211_iapp_frame *wf = (struct ieee80211_iapp_frame *)p; 50 struct ieee80211_iapp_add_notify *add; 51 struct pcap_pkthdr fakeh; 52 const u_char *data; 53 54 TCHECK2(*wf, sizeof(struct ieee80211_iapp_frame)); 55 56 /* Print common IAPP information */ 57 printf(" IAPPv%u ", wf->i_version); 58 if (wf->i_command & 0xf0) 59 printf("unknown: 0x%0x ", wf->i_command); 60 else 61 printf("%s ", ieee80211_iapp_frame_type_name[wf->i_command]); 62 printf("(id %u) %u: ", wf->i_identifier, wf->i_length); 63 64 65 data = p + sizeof(struct ieee80211_iapp_frame); 66 67 switch (wf->i_command) { 68 case IEEE80211_IAPP_FRAME_ADD_NOTIFY: 69 /* 70 * Print details about the IAPP ADD.notify message. 71 */ 72 TCHECK2(*data, sizeof(struct ieee80211_iapp_add_notify)); 73 add = (struct ieee80211_iapp_add_notify *)data; 74 75 printf("octets %u, ", add->a_length); 76 if (add->a_reserved) 77 printf("reserved %u, ", add->a_reserved); 78 if (add->a_length == IEEE80211_ADDR_LEN) 79 printf("lladdr %s, ", etheraddr_string(add->a_macaddr)); 80 printf("seq %u", add->a_seqnum); 81 break; 82 case IEEE80211_IAPP_FRAME_HOSTAPD_RADIOTAP: 83 case IEEE80211_IAPP_FRAME_HOSTAPD_PCAP: 84 /* 85 * hostapd(8) uses its own subtypes to send IEEE 802.11 86 * frame dumps to the IAPP group (either with or without 87 * radiotap header). Decode it using the IEEE 802.11 88 * printer. 89 */ 90 bzero(&fakeh, sizeof(fakeh)); 91 fakeh.len = wf->i_length; 92 fakeh.caplen = snapend - data; 93 94 ieee80211_encap = 1; 95 if (wf->i_command == IEEE80211_IAPP_FRAME_HOSTAPD_RADIOTAP) 96 ieee802_11_radio_if_print(NULL, &fakeh, data); 97 else 98 ieee802_11_if_print(NULL, &fakeh, data); 99 ieee80211_encap = 0; 100 break; 101 } 102 return; 103 104 trunc: 105 printf(" [|IAPP]"); 106 } 107 108