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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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-clip.h>
45 #include <epan/dissectors/packet-eth.h>
46 #include <epan/dissectors/packet-fddi.h>
47 #include <epan/dissectors/packet-fr.h>
48 #include <epan/dissectors/packet-null.h>
49 #include <epan/dissectors/packet-ppi.h>
50 #include <epan/dissectors/packet-ppp.h>
51 #include <epan/dissectors/packet-raw.h>
52 #include <epan/dissectors/packet-sll.h>
53 #include <epan/dissectors/packet-tr.h>
54 #include <epan/dissectors/packet-ieee80211.h>
55 #include <epan/dissectors/packet-radiotap.h>
56 #include <epan/dissectors/packet-chdlc.h>
57 #include <epan/dissectors/packet-ipfc.h>
58 #include <epan/dissectors/packet-arcnet.h>
59 #include <epan/dissectors/packet-enc.h>
60 #include <epan/dissectors/packet-i2c.h>
62 static void capture_info_packet(
63 packet_counts *counts, gint wtap_linktype, const guchar *pd, guint32 caplen, union wtap_pseudo_header *pseudo_header);
67 typedef struct _info_data {
68 packet_counts counts; /* several packet type counters */
69 struct wtap* wtap; /* current wtap file */
70 capture_info ui; /* user interface data */
74 static info_data_t info_data;
78 void capture_info_open(capture_options *capture_opts)
80 info_data.counts.total = 0;
81 info_data.counts.sctp = 0;
82 info_data.counts.tcp = 0;
83 info_data.counts.udp = 0;
84 info_data.counts.icmp = 0;
85 info_data.counts.ospf = 0;
86 info_data.counts.gre = 0;
87 info_data.counts.ipx = 0;
88 info_data.counts.netbios = 0;
89 info_data.counts.vines = 0;
90 info_data.counts.other = 0;
91 info_data.counts.arp = 0;
92 info_data.counts.i2c_event = 0;
93 info_data.counts.i2c_data = 0;
95 info_data.wtap = NULL;
96 info_data.ui.counts = &info_data.counts;
98 capture_info_ui_create(&info_data.ui, capture_opts);
103 cf_open_error_message(int err, gchar *err_info, gboolean for_writing,
107 static char errmsg_errno[1024+1];
113 case WTAP_ERR_NOT_REGULAR_FILE:
114 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
117 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
118 /* Seen only when opening a capture file for reading. */
119 errmsg = "The file \"%s\" isn't a capture file in a format TShark understands.";
122 case WTAP_ERR_UNSUPPORTED:
123 /* Seen only when opening a capture file for reading. */
124 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
125 "The file \"%%s\" isn't a capture file in a format TShark understands.\n"
128 errmsg = errmsg_errno;
131 case WTAP_ERR_CANT_WRITE_TO_PIPE:
132 /* Seen only when opening a capture file for writing. */
133 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
134 "The file \"%%s\" is a pipe, and %s capture files can't be "
135 "written to a pipe.", wtap_file_type_string(file_type));
136 errmsg = errmsg_errno;
139 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
140 /* Seen only when opening a capture file for writing. */
141 errmsg = "TShark doesn't support writing capture files in that format.";
144 case WTAP_ERR_UNSUPPORTED_ENCAP:
146 errmsg = "TShark can't save this capture in that format.";
148 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
149 "The file \"%%s\" is a capture for a network type that TShark doesn't support.\n"
152 errmsg = errmsg_errno;
156 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
158 errmsg = "TShark can't save this capture in that format.";
160 errmsg = "The file \"%s\" is a capture for a network type that TShark doesn't support.";
163 case WTAP_ERR_BAD_RECORD:
164 /* Seen only when opening a capture file for reading. */
165 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
166 "The file \"%%s\" appears to be damaged or corrupt.\n"
169 errmsg = errmsg_errno;
172 case WTAP_ERR_CANT_OPEN:
174 errmsg = "The file \"%s\" could not be created for some unknown reason.";
176 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
179 case WTAP_ERR_SHORT_READ:
180 errmsg = "The file \"%s\" appears to have been cut short"
181 " in the middle of a packet or other data.";
184 case WTAP_ERR_SHORT_WRITE:
185 errmsg = "A full header couldn't be written to the file \"%s\".";
188 case WTAP_ERR_DECOMPRESS:
189 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
190 "The compressed file \"%%s\" appears to be damaged or corrupt.\n"
193 errmsg = errmsg_errno;
197 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
198 "The file \"%%s\" could not be %s: %s.",
199 for_writing ? "created" : "opened",
201 errmsg = errmsg_errno;
205 errmsg = file_open_error_message(err, for_writing);
209 /* new file arrived */
210 gboolean capture_info_new_file(const char *new_filename)
217 if(info_data.wtap != NULL) {
218 wtap_close(info_data.wtap);
221 info_data.wtap = wtap_open_offline(new_filename, &err, &err_info, FALSE);
222 if (!info_data.wtap) {
223 err_msg = g_strdup_printf(cf_open_error_message(err, err_info, FALSE, WTAP_FILE_PCAP),
225 g_warning("capture_info_new_file: %d (%s)", err, err_msg);
233 /* new packets arrived */
234 void capture_info_new_packets(int to_read)
239 const struct wtap_pkthdr *phdr;
240 union wtap_pseudo_header *pseudo_header;
245 info_data.ui.new_packets = to_read;
247 /*g_warning("new packets: %u", to_read);*/
249 while (to_read > 0) {
250 wtap_cleareof(info_data.wtap);
251 if (wtap_read(info_data.wtap, &err, &err_info, &data_offset)) {
252 phdr = wtap_phdr(info_data.wtap);
253 pseudo_header = wtap_pseudoheader(info_data.wtap);
254 wtap_linktype = phdr->pkt_encap;
255 buf = wtap_buf_ptr(info_data.wtap);
257 capture_info_packet(&info_data.counts, wtap_linktype, buf, phdr->caplen, pseudo_header);
259 /*g_warning("new packet");*/
264 capture_info_ui_update(&info_data.ui);
269 void capture_info_close(void)
271 capture_info_ui_destroy(&info_data.ui);
273 wtap_close(info_data.wtap);
278 capture_info_packet(packet_counts *counts, gint wtap_linktype, const guchar *pd, guint32 caplen, union wtap_pseudo_header *pseudo_header)
281 switch (wtap_linktype) {
282 case WTAP_ENCAP_ETHERNET:
283 capture_eth(pd, 0, caplen, counts);
285 case WTAP_ENCAP_FDDI:
286 case WTAP_ENCAP_FDDI_BITSWAPPED:
287 capture_fddi(pd, caplen, counts);
289 case WTAP_ENCAP_PRISM_HEADER:
290 capture_prism(pd, 0, caplen, counts);
292 case WTAP_ENCAP_TOKEN_RING:
293 capture_tr(pd, 0, caplen, counts);
295 case WTAP_ENCAP_NULL:
296 capture_null(pd, caplen, counts);
299 capture_ppp_hdlc(pd, 0, caplen, counts);
301 case WTAP_ENCAP_RAW_IP:
302 capture_raw(pd, caplen, counts);
305 capture_sll(pd, caplen, counts);
307 case WTAP_ENCAP_LINUX_ATM_CLIP:
308 capture_clip(pd, caplen, counts);
310 case WTAP_ENCAP_IEEE_802_11:
311 case WTAP_ENCAP_IEEE_802_11_WITH_RADIO:
312 capture_ieee80211(pd, 0, caplen, counts);
314 case WTAP_ENCAP_IEEE_802_11_WLAN_RADIOTAP:
315 capture_radiotap(pd, 0, caplen, counts);
317 case WTAP_ENCAP_IEEE_802_11_WLAN_AVS:
318 capture_wlancap(pd, 0, caplen, counts);
320 case WTAP_ENCAP_CHDLC:
321 capture_chdlc(pd, 0, caplen, counts);
323 case WTAP_ENCAP_LOCALTALK:
324 capture_llap(counts);
326 case WTAP_ENCAP_ATM_PDUS:
327 capture_atm(pseudo_header, pd, caplen, counts);
329 case WTAP_ENCAP_IP_OVER_FC:
330 capture_ipfc(pd, caplen, counts);
332 case WTAP_ENCAP_ARCNET:
333 capture_arcnet(pd, caplen, counts, FALSE, TRUE);
335 case WTAP_ENCAP_ARCNET_LINUX:
336 capture_arcnet(pd, caplen, counts, TRUE, FALSE);
338 case WTAP_ENCAP_APPLE_IP_OVER_IEEE1394:
339 capture_ap1394(pd, 0, caplen, counts);
341 case WTAP_ENCAP_FRELAY:
342 case WTAP_ENCAP_FRELAY_WITH_PHDR:
343 capture_fr(pd, 0, caplen, counts);
346 capture_enc(pd, caplen, counts);
349 capture_ppi(pd, caplen, counts);
352 capture_i2c(pseudo_header, counts);
354 /* XXX - some ATM drivers on FreeBSD might prepend a 4-byte ATM
355 pseudo-header to DLT_ATM_RFC1483, with LLC header following;
356 we might have to implement that at some point. */
361 #endif /* HAVE_LIBPCAP */