1 /* $OpenBSD: print-iapp.c,v 1.5 2015/01/16 06:40:21 deraadt 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/time.h> 20 #include <sys/socket.h> 21 #include <sys/file.h> 22 #include <sys/ioctl.h> 23 24 #include <net/if.h> 25 26 #include <netinet/in.h> 27 #include <netinet/if_ether.h> 28 29 #include <net80211/ieee80211.h> 30 31 #include <pcap.h> 32 #include <stdio.h> 33 #include <string.h> 34 35 #include "addrtoname.h" 36 #include "interface.h" 37 #include "iapp.h" 38 39 const char *ieee80211_iapp_frame_type_name[] = 40 IEEE80211_IAPP_FRAME_TYPE_NAME; 41 42 extern int ieee80211_encap; 43 44 void 45 iapp_print(const u_char *p, u_int len) 46 { 47 struct ieee80211_iapp_frame *wf = (struct ieee80211_iapp_frame *)p; 48 struct ieee80211_iapp_add_notify *add; 49 struct pcap_pkthdr fakeh; 50 const u_char *data; 51 52 TCHECK2(*wf, sizeof(struct ieee80211_iapp_frame)); 53 54 /* Print common IAPP information */ 55 printf(" IAPPv%u ", wf->i_version); 56 if (wf->i_command & 0xf0) 57 printf("unknown: 0x%0x ", wf->i_command); 58 else 59 printf("%s ", ieee80211_iapp_frame_type_name[wf->i_command]); 60 printf("(id %u) %u: ", wf->i_identifier, wf->i_length); 61 62 63 data = p + sizeof(struct ieee80211_iapp_frame); 64 65 switch (wf->i_command) { 66 case IEEE80211_IAPP_FRAME_ADD_NOTIFY: 67 /* 68 * Print details about the IAPP ADD.notify message. 69 */ 70 TCHECK2(*data, sizeof(struct ieee80211_iapp_add_notify)); 71 add = (struct ieee80211_iapp_add_notify *)data; 72 73 printf("octets %u, ", add->a_length); 74 if (add->a_reserved) 75 printf("reserved %u, ", add->a_reserved); 76 if (add->a_length == IEEE80211_ADDR_LEN) 77 printf("lladdr %s, ", etheraddr_string(add->a_macaddr)); 78 printf("seq %u", add->a_seqnum); 79 break; 80 case IEEE80211_IAPP_FRAME_HOSTAPD_RADIOTAP: 81 case IEEE80211_IAPP_FRAME_HOSTAPD_PCAP: 82 /* 83 * hostapd(8) uses its own subtypes to send IEEE 802.11 84 * frame dumps to the IAPP group (either with or without 85 * radiotap header). Decode it using the IEEE 802.11 86 * printer. 87 */ 88 bzero(&fakeh, sizeof(fakeh)); 89 fakeh.len = wf->i_length; 90 fakeh.caplen = snapend - data; 91 92 ieee80211_encap = 1; 93 if (wf->i_command == IEEE80211_IAPP_FRAME_HOSTAPD_RADIOTAP) 94 ieee802_11_radio_if_print(NULL, &fakeh, data); 95 else 96 ieee802_11_if_print(NULL, &fakeh, data); 97 ieee80211_encap = 0; 98 break; 99 } 100 return; 101 102 trunc: 103 printf(" [|IAPP]"); 104 } 105 106