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-ppp.h>
50 #include <epan/dissectors/packet-raw.h>
51 #include <epan/dissectors/packet-sll.h>
52 #include <epan/dissectors/packet-tr.h>
53 #include <epan/dissectors/packet-ieee80211.h>
54 #include <epan/dissectors/packet-radiotap.h>
55 #include <epan/dissectors/packet-chdlc.h>
56 #include <epan/dissectors/packet-prism.h>
57 #include <epan/dissectors/packet-ipfc.h>
58 #include <epan/dissectors/packet-arcnet.h>
59 #include <epan/dissectors/packet-enc.h>
61 static void capture_info_packet(
62 packet_counts *counts, gint wtap_linktype, const guchar *pd, guint32 caplen, union wtap_pseudo_header *pseudo_header);
66 typedef struct _info_data {
67 packet_counts counts; /* several packet type counters */
68 struct wtap* wtap; /* current wtap file */
69 capture_info ui; /* user interface data */
73 info_data_t info_data;
77 void capture_info_open(const char *iface)
79 info_data.counts.total = 0;
80 info_data.counts.sctp = 0;
81 info_data.counts.tcp = 0;
82 info_data.counts.udp = 0;
83 info_data.counts.icmp = 0;
84 info_data.counts.ospf = 0;
85 info_data.counts.gre = 0;
86 info_data.counts.ipx = 0;
87 info_data.counts.netbios = 0;
88 info_data.counts.vines = 0;
89 info_data.counts.other = 0;
90 info_data.counts.arp = 0;
92 info_data.wtap = NULL;
93 info_data.ui.counts = &info_data.counts;
95 capture_info_ui_create(&info_data.ui, iface);
100 cf_open_error_message(int err, gchar *err_info, gboolean for_writing,
104 static char errmsg_errno[1024+1];
110 case WTAP_ERR_NOT_REGULAR_FILE:
111 errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
114 case WTAP_ERR_FILE_UNKNOWN_FORMAT:
115 /* Seen only when opening a capture file for reading. */
116 errmsg = "The file \"%s\" isn't a capture file in a format Twireshark understands.";
119 case WTAP_ERR_UNSUPPORTED:
120 /* Seen only when opening a capture file for reading. */
121 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
122 "The file \"%%s\" isn't a capture file in a format Twireshark understands.\n"
125 errmsg = errmsg_errno;
128 case WTAP_ERR_CANT_WRITE_TO_PIPE:
129 /* Seen only when opening a capture file for writing. */
130 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
131 "The file \"%%s\" is a pipe, and %s capture files can't be "
132 "written to a pipe.", wtap_file_type_string(file_type));
133 errmsg = errmsg_errno;
136 case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
137 /* Seen only when opening a capture file for writing. */
138 errmsg = "Twireshark doesn't support writing capture files in that format.";
141 case WTAP_ERR_UNSUPPORTED_ENCAP:
143 errmsg = "Twireshark can't save this capture in that format.";
145 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
146 "The file \"%%s\" is a capture for a network type that Twireshark doesn't support.\n"
149 errmsg = errmsg_errno;
153 case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
155 errmsg = "Twireshark can't save this capture in that format.";
157 errmsg = "The file \"%s\" is a capture for a network type that Twireshark doesn't support.";
160 case WTAP_ERR_BAD_RECORD:
161 /* Seen only when opening a capture file for reading. */
162 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
163 "The file \"%%s\" appears to be damaged or corrupt.\n"
166 errmsg = errmsg_errno;
169 case WTAP_ERR_CANT_OPEN:
171 errmsg = "The file \"%s\" could not be created for some unknown reason.";
173 errmsg = "The file \"%s\" could not be opened for some unknown reason.";
176 case WTAP_ERR_SHORT_READ:
177 errmsg = "The file \"%s\" appears to have been cut short"
178 " in the middle of a packet or other data.";
181 case WTAP_ERR_SHORT_WRITE:
182 errmsg = "A full header couldn't be written to the file \"%s\".";
186 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
187 "The file \"%%s\" could not be %s: %s.",
188 for_writing ? "created" : "opened",
190 errmsg = errmsg_errno;
194 errmsg = file_open_error_message(err, for_writing);
198 /* new file arrived */
199 gboolean capture_info_new_file(const char *new_filename)
203 char err_msg[2048+1];
206 if(info_data.wtap != NULL) {
207 wtap_close(info_data.wtap);
210 info_data.wtap = wtap_open_offline(new_filename, &err, &err_info, FALSE);
211 if (!info_data.wtap) {
212 g_snprintf(err_msg, sizeof err_msg,
213 cf_open_error_message(err, err_info, FALSE, WTAP_FILE_PCAP),
215 g_warning("capture_info_new_file: %s", err_msg);
222 /* new packets arrived */
223 void capture_info_new_packets(int to_read)
228 const struct wtap_pkthdr *phdr;
229 union wtap_pseudo_header *pseudo_header;
234 info_data.ui.new_packets = to_read;
236 /*g_warning("new packets: %u", to_read);*/
238 while (to_read != 0 && (wtap_read(info_data.wtap, &err, &err_info, &data_offset))) {
239 phdr = wtap_phdr(info_data.wtap);
240 pseudo_header = wtap_pseudoheader(info_data.wtap);
241 wtap_linktype = phdr->pkt_encap;
242 buf = wtap_buf_ptr(info_data.wtap);
244 capture_info_packet(&info_data.counts, wtap_linktype, buf, phdr->caplen, pseudo_header);
246 /*g_warning("new packet");*/
250 capture_info_ui_update(&info_data.ui);
255 void capture_info_close(void)
257 capture_info_ui_destroy(&info_data.ui);
259 wtap_close(info_data.wtap);
264 capture_info_packet(packet_counts *counts, gint wtap_linktype, const guchar *pd, guint32 caplen, union wtap_pseudo_header *pseudo_header)
267 switch (wtap_linktype) {
268 case WTAP_ENCAP_ETHERNET:
269 capture_eth(pd, 0, caplen, counts);
271 case WTAP_ENCAP_FDDI:
272 case WTAP_ENCAP_FDDI_BITSWAPPED:
273 capture_fddi(pd, caplen, counts);
275 case WTAP_ENCAP_PRISM_HEADER:
276 capture_prism(pd, 0, caplen, counts);
278 case WTAP_ENCAP_TOKEN_RING:
279 capture_tr(pd, 0, caplen, counts);
281 case WTAP_ENCAP_NULL:
282 capture_null(pd, caplen, counts);
285 capture_ppp_hdlc(pd, 0, caplen, counts);
287 case WTAP_ENCAP_RAW_IP:
288 capture_raw(pd, caplen, counts);
291 capture_sll(pd, caplen, counts);
293 case WTAP_ENCAP_LINUX_ATM_CLIP:
294 capture_clip(pd, caplen, counts);
296 case WTAP_ENCAP_IEEE_802_11:
297 case WTAP_ENCAP_IEEE_802_11_WITH_RADIO:
298 capture_ieee80211(pd, 0, caplen, counts);
300 case WTAP_ENCAP_IEEE_802_11_WLAN_RADIOTAP:
301 capture_radiotap(pd, 0, caplen, counts);
303 case WTAP_ENCAP_CHDLC:
304 capture_chdlc(pd, 0, caplen, counts);
306 case WTAP_ENCAP_LOCALTALK:
307 capture_llap(counts);
309 case WTAP_ENCAP_ATM_PDUS:
310 capture_atm(pseudo_header, pd, caplen, counts);
312 case WTAP_ENCAP_IP_OVER_FC:
313 capture_ipfc(pd, caplen, counts);
315 case WTAP_ENCAP_ARCNET:
316 capture_arcnet(pd, caplen, counts, FALSE, TRUE);
318 case WTAP_ENCAP_ARCNET_LINUX:
319 capture_arcnet(pd, caplen, counts, TRUE, FALSE);
321 case WTAP_ENCAP_APPLE_IP_OVER_IEEE1394:
322 capture_ap1394(pd, 0, caplen, counts);
324 case WTAP_ENCAP_FRELAY:
325 case WTAP_ENCAP_FRELAY_WITH_PHDR:
326 capture_fr(pd, 0, caplen, counts);
329 capture_enc(pd, caplen, counts);
331 /* XXX - some ATM drivers on FreeBSD might prepend a 4-byte ATM
332 pseudo-header to DLT_ATM_RFC1483, with LLC header following;
333 we might have to implement that at some point. */
338 #endif /* HAVE_LIBPCAP */