2 * capture info functions
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
33 #include <epan/packet.h>
34 /* XXX - try to remove this later */
35 #include <epan/prefs.h>
36 /* XXX - try to remove this later */
37 #include <epan/filesystem.h>
39 #include "capture_info.h"
41 #include <epan/dissectors/packet-ap1394.h>
42 #include <epan/dissectors/packet-atalk.h>
43 #include <epan/dissectors/packet-atm.h>
44 #include <epan/dissectors/packet-ax25.h>
45 #include <epan/dissectors/packet-clip.h>
46 #include <epan/dissectors/packet-eth.h>
47 #include <epan/dissectors/packet-fddi.h>
48 #include <epan/dissectors/packet-fr.h>
49 #include <epan/dissectors/packet-null.h>
50 #include <epan/dissectors/packet-ppi.h>
51 #include <epan/dissectors/packet-ppp.h>
52 #include <epan/dissectors/packet-raw.h>
53 #include <epan/dissectors/packet-sll.h>
54 #include <epan/dissectors/packet-tr.h>
55 #include <epan/dissectors/packet-ieee80211.h>
56 #include <epan/dissectors/packet-ieee80211-radiotap.h>
57 #include <epan/dissectors/packet-chdlc.h>
58 #include <epan/dissectors/packet-ipfc.h>
59 #include <epan/dissectors/packet-arcnet.h>
60 #include <epan/dissectors/packet-enc.h>
61 #include <epan/dissectors/packet-i2c.h>
62 #include <epan/dissectors/packet-ax25-kiss.h>
64 static void capture_info_packet(
65 packet_counts *counts, gint wtap_linktype, const guchar *pd, guint32 caplen, union wtap_pseudo_header *pseudo_header);
69 typedef struct _info_data {
70 packet_counts counts; /* several packet type counters */
71 struct wtap* wtap; /* current wtap file */
72 capture_info ui; /* user interface data */
76 static info_data_t info_data;
80 void capture_info_open(capture_options *capture_opts)
82 info_data.counts.total = 0;
83 info_data.counts.sctp = 0;
84 info_data.counts.tcp = 0;
85 info_data.counts.udp = 0;
86 info_data.counts.icmp = 0;
87 info_data.counts.ospf = 0;
88 info_data.counts.gre = 0;
89 info_data.counts.ipx = 0;
90 info_data.counts.netbios = 0;
91 info_data.counts.vines = 0;
92 info_data.counts.other = 0;
93 info_data.counts.arp = 0;
94 info_data.counts.i2c_event = 0;
95 info_data.counts.i2c_data = 0;
97 info_data.wtap = NULL;
98 info_data.ui.counts = &info_data.counts;
100 capture_info_ui_create(&info_data.ui, capture_opts);
105 cf_open_error_message(int err, gchar *err_info, gboolean for_writing,
109 static char errmsg_errno[1024+1];
115 case WTAP_ERR_NOT_REGULAR_FILE:
116 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
119 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
120 /* Seen only when opening a capture file for reading. */
121 errmsg = "The file \"%s\" isn't a capture file in a format TShark understands.";
124 case WTAP_ERR_UNSUPPORTED:
125 /* Seen only when opening a capture file for reading. */
126 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
127 "The file \"%%s\" isn't a capture file in a format TShark understands.\n"
130 errmsg = errmsg_errno;
133 case WTAP_ERR_CANT_WRITE_TO_PIPE:
134 /* Seen only when opening a capture file for writing. */
135 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
136 "The file \"%%s\" is a pipe, and %s capture files can't be "
137 "written to a pipe.", wtap_file_type_string(file_type));
138 errmsg = errmsg_errno;
141 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
142 /* Seen only when opening a capture file for writing. */
143 errmsg = "TShark doesn't support writing capture files in that format.";
146 case WTAP_ERR_UNSUPPORTED_ENCAP:
148 errmsg = "TShark can't save this capture in that format.";
150 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
151 "The file \"%%s\" is a capture for a network type that TShark doesn't support.\n"
154 errmsg = errmsg_errno;
158 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
160 errmsg = "TShark can't save this capture in that format.";
162 errmsg = "The file \"%s\" is a capture for a network type that TShark doesn't support.";
165 case WTAP_ERR_BAD_FILE:
166 /* Seen only when opening a capture file for reading. */
167 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
168 "The file \"%%s\" appears to be damaged or corrupt.\n"
171 errmsg = errmsg_errno;
174 case WTAP_ERR_CANT_OPEN:
176 errmsg = "The file \"%s\" could not be created for some unknown reason.";
178 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
181 case WTAP_ERR_SHORT_READ:
182 errmsg = "The file \"%s\" appears to have been cut short"
183 " in the middle of a packet or other data.";
186 case WTAP_ERR_SHORT_WRITE:
187 errmsg = "A full header couldn't be written to the file \"%s\".";
190 case WTAP_ERR_DECOMPRESS:
191 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
192 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
195 errmsg = errmsg_errno;
199 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
200 "The file \"%%s\" could not be %s: %s.",
201 for_writing ? "created" : "opened",
203 errmsg = errmsg_errno;
207 errmsg = file_open_error_message(err, for_writing);
211 /* new file arrived */
212 gboolean capture_info_new_file(const char *new_filename)
219 if(info_data.wtap != NULL) {
220 wtap_close(info_data.wtap);
223 info_data.wtap = wtap_open_offline(new_filename, &err, &err_info, FALSE);
224 if (!info_data.wtap) {
225 err_msg = g_strdup_printf(cf_open_error_message(err, err_info, FALSE, WTAP_FILE_PCAP),
227 g_warning("capture_info_new_file: %d (%s)", err, err_msg);
235 /* new packets arrived */
236 void capture_info_new_packets(int to_read)
241 const struct wtap_pkthdr *phdr;
242 union wtap_pseudo_header *pseudo_header;
247 info_data.ui.new_packets = to_read;
249 /*g_warning("new packets: %u", to_read);*/
251 while (to_read > 0) {
252 wtap_cleareof(info_data.wtap);
253 if (wtap_read(info_data.wtap, &err, &err_info, &data_offset)) {
254 phdr = wtap_phdr(info_data.wtap);
255 pseudo_header = wtap_pseudoheader(info_data.wtap);
256 wtap_linktype = phdr->pkt_encap;
257 buf = wtap_buf_ptr(info_data.wtap);
259 capture_info_packet(&info_data.counts, wtap_linktype, buf, phdr->caplen, pseudo_header);
261 /*g_warning("new packet");*/
266 capture_info_ui_update(&info_data.ui);
271 void capture_info_close(void)
273 capture_info_ui_destroy(&info_data.ui);
275 wtap_close(info_data.wtap);
280 capture_info_packet(packet_counts *counts, gint wtap_linktype, const guchar *pd, guint32 caplen, union wtap_pseudo_header *pseudo_header)
283 switch (wtap_linktype) {
284 case WTAP_ENCAP_ETHERNET:
285 capture_eth(pd, 0, caplen, counts);
287 case WTAP_ENCAP_FDDI:
288 case WTAP_ENCAP_FDDI_BITSWAPPED:
289 capture_fddi(pd, caplen, counts);
291 case WTAP_ENCAP_IEEE_802_11_PRISM:
292 capture_prism(pd, 0, caplen, counts);
294 case WTAP_ENCAP_TOKEN_RING:
295 capture_tr(pd, 0, caplen, counts);
297 case WTAP_ENCAP_NULL:
298 capture_null(pd, caplen, counts);
301 capture_ppp_hdlc(pd, 0, caplen, counts);
303 case WTAP_ENCAP_RAW_IP:
304 capture_raw(pd, caplen, counts);
307 capture_sll(pd, caplen, counts);
309 case WTAP_ENCAP_LINUX_ATM_CLIP:
310 capture_clip(pd, caplen, counts);
312 case WTAP_ENCAP_IEEE_802_11:
313 case WTAP_ENCAP_IEEE_802_11_WITH_RADIO:
314 capture_ieee80211(pd, 0, caplen, counts);
316 case WTAP_ENCAP_IEEE_802_11_RADIOTAP:
317 capture_radiotap(pd, 0, caplen, counts);
319 case WTAP_ENCAP_IEEE_802_11_AVS:
320 capture_wlancap(pd, 0, caplen, counts);
322 case WTAP_ENCAP_CHDLC:
323 capture_chdlc(pd, 0, caplen, counts);
325 case WTAP_ENCAP_LOCALTALK:
326 capture_llap(counts);
328 case WTAP_ENCAP_ATM_PDUS:
329 capture_atm(pseudo_header, pd, caplen, counts);
331 case WTAP_ENCAP_IP_OVER_FC:
332 capture_ipfc(pd, caplen, counts);
334 case WTAP_ENCAP_ARCNET:
335 capture_arcnet(pd, caplen, counts, FALSE, TRUE);
337 case WTAP_ENCAP_ARCNET_LINUX:
338 capture_arcnet(pd, caplen, counts, TRUE, FALSE);
340 case WTAP_ENCAP_APPLE_IP_OVER_IEEE1394:
341 capture_ap1394(pd, 0, caplen, counts);
343 case WTAP_ENCAP_FRELAY:
344 case WTAP_ENCAP_FRELAY_WITH_PHDR:
345 capture_fr(pd, 0, caplen, counts);
348 capture_enc(pd, caplen, counts);
351 capture_ppi(pd, caplen, counts);
354 capture_i2c(pseudo_header, counts);
356 case WTAP_ENCAP_AX25_KISS:
357 capture_ax25_kiss(pd, 0, caplen, counts);
359 case WTAP_ENCAP_AX25:
360 capture_ax25(pd, 0, caplen, counts);
362 /* XXX - some ATM drivers on FreeBSD might prepend a 4-byte ATM
363 pseudo-header to DLT_ATM_RFC1483, with LLC header following;
364 we might have to implement that at some point. */
369 #endif /* HAVE_LIBPCAP */