1/*
2 * Copyright (c) 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the Computer Systems
16 * Engineering Group at Lawrence Berkeley Laboratory.
17 * 4. Neither the name of the University nor of the Laboratory may be used
18 * to endorse or promote products derived from this software without
19 * specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
| 1/*
2 * Copyright (c) 1994, 1995, 1996
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the Computer Systems
16 * Engineering Group at Lawrence Berkeley Laboratory.
17 * 4. Neither the name of the University nor of the Laboratory may be used
18 * to endorse or promote products derived from this software without
19 * specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
|
33 * $FreeBSD: head/contrib/libpcap/pcap-int.h 146771 2005-05-29 18:09:04Z sam $
34 * @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.68 2004/12/18 08:52:10 guy Exp $ (LBL)
| 33 * $FreeBSD: head/contrib/libpcap/pcap-int.h 147897 2005-07-11 03:43:25Z sam $
34 * @(#) $Header: /tcpdump/master/libpcap/pcap-int.h,v 1.68.2.2 2005/05/03 18:54:36 guy Exp $ (LBL)
|
35 */
36
37#ifndef pcap_int_h
38#define pcap_int_h
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44#include <pcap.h>
45
46#ifdef WIN32
47#include <packet32.h>
48#endif /* WIN32 */
49
50#ifdef MSDOS
51#include <fcntl.h>
52#include <io.h>
53#endif
54
55/*
56 * Savefile
57 */
58typedef enum {
59 NOT_SWAPPED,
60 SWAPPED,
61 MAYBE_SWAPPED
62} swapped_type_t;
63
64struct pcap_sf {
65 FILE *rfile;
66 int swapped;
67 int hdrsize;
68 swapped_type_t lengths_swapped;
69 int version_major;
70 int version_minor;
71 u_char *base;
72};
73
74struct pcap_md {
75 struct pcap_stat stat;
76 /*XXX*/
77 int use_bpf; /* using kernel filter */
78 u_long TotPkts; /* can't oflow for 79 hrs on ether */
79 u_long TotAccepted; /* count accepted by filter */
80 u_long TotDrops; /* count of dropped packets */
81 long TotMissed; /* missed by i/f during this run */
82 long OrigMissed; /* missed by i/f before this run */
83 char *device; /* device name */
84#ifdef linux
85 int sock_packet; /* using Linux 2.0 compatible interface */
86 int timeout; /* timeout specified to pcap_open_live */
87 int clear_promisc; /* must clear promiscuous mode when we close */
88 int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */
89 int ifindex; /* interface index of device we're bound to */
90 int lo_ifindex; /* interface index of the loopback device */
91 struct pcap *next; /* list of open promiscuous sock_packet pcaps */
92#endif
93
94#ifdef HAVE_DAG_API
95 void *dag_mem_base; /* DAG card memory base address */
96 u_int dag_mem_bottom; /* DAG card current memory bottom pointer */
97 u_int dag_mem_top; /* DAG card current memory top pointer */
98 int dag_fcs_bits; /* Number of checksum bits from link layer */
99 int dag_offset_flags; /* Flags to pass to dag_offset(). */
100#endif
101};
102
| 35 */
36
37#ifndef pcap_int_h
38#define pcap_int_h
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44#include <pcap.h>
45
46#ifdef WIN32
47#include <packet32.h>
48#endif /* WIN32 */
49
50#ifdef MSDOS
51#include <fcntl.h>
52#include <io.h>
53#endif
54
55/*
56 * Savefile
57 */
58typedef enum {
59 NOT_SWAPPED,
60 SWAPPED,
61 MAYBE_SWAPPED
62} swapped_type_t;
63
64struct pcap_sf {
65 FILE *rfile;
66 int swapped;
67 int hdrsize;
68 swapped_type_t lengths_swapped;
69 int version_major;
70 int version_minor;
71 u_char *base;
72};
73
74struct pcap_md {
75 struct pcap_stat stat;
76 /*XXX*/
77 int use_bpf; /* using kernel filter */
78 u_long TotPkts; /* can't oflow for 79 hrs on ether */
79 u_long TotAccepted; /* count accepted by filter */
80 u_long TotDrops; /* count of dropped packets */
81 long TotMissed; /* missed by i/f during this run */
82 long OrigMissed; /* missed by i/f before this run */
83 char *device; /* device name */
84#ifdef linux
85 int sock_packet; /* using Linux 2.0 compatible interface */
86 int timeout; /* timeout specified to pcap_open_live */
87 int clear_promisc; /* must clear promiscuous mode when we close */
88 int cooked; /* using SOCK_DGRAM rather than SOCK_RAW */
89 int ifindex; /* interface index of device we're bound to */
90 int lo_ifindex; /* interface index of the loopback device */
91 struct pcap *next; /* list of open promiscuous sock_packet pcaps */
92#endif
93
94#ifdef HAVE_DAG_API
95 void *dag_mem_base; /* DAG card memory base address */
96 u_int dag_mem_bottom; /* DAG card current memory bottom pointer */
97 u_int dag_mem_top; /* DAG card current memory top pointer */
98 int dag_fcs_bits; /* Number of checksum bits from link layer */
99 int dag_offset_flags; /* Flags to pass to dag_offset(). */
100#endif
101};
102
|
| 103/*
104 * Ultrix, DEC OSF/1^H^H^H^H^H^H^H^H^HDigital UNIX^H^H^H^H^H^H^H^H^H^H^H^H
105 * Tru64 UNIX, and NetBSD pad to make everything line up on a nice boundary.
106 */
107#if defined(ultrix) || defined(__osf__) || (defined(__NetBSD__) && __NetBSD_Version__ > 106000000)
108#define PCAP_FDDIPAD 3
109#endif
110
|
103struct pcap {
104#ifdef WIN32
105 ADAPTER *adapter;
106 LPPACKET Packet;
107 int timeout;
108 int nonblock;
109#else
110 int fd;
111 int selectable_fd;
112 int send_fd;
113#endif /* WIN32 */
114 int snapshot;
115 int linktype;
116 int tzoff; /* timezone offset */
117 int offset; /* offset for proper alignment */
118
119 int break_loop; /* flag set to force break from packet-reading loop */
120
121#ifdef PCAP_FDDIPAD
122 int fddipad;
123#endif
124
125#ifdef MSDOS
126 int inter_packet_wait; /* offline: wait between packets */
127 void (*wait_proc)(void); /* call proc while waiting */
128#endif
129
130 struct pcap_sf sf;
131 struct pcap_md md;
132
133 /*
134 * Read buffer.
135 */
136 int bufsize;
137 u_char *buffer;
138 u_char *bp;
139 int cc;
140
141 /*
142 * Place holder for pcap_next().
143 */
144 u_char *pkt;
145
| 111struct pcap {
112#ifdef WIN32
113 ADAPTER *adapter;
114 LPPACKET Packet;
115 int timeout;
116 int nonblock;
117#else
118 int fd;
119 int selectable_fd;
120 int send_fd;
121#endif /* WIN32 */
122 int snapshot;
123 int linktype;
124 int tzoff; /* timezone offset */
125 int offset; /* offset for proper alignment */
126
127 int break_loop; /* flag set to force break from packet-reading loop */
128
129#ifdef PCAP_FDDIPAD
130 int fddipad;
131#endif
132
133#ifdef MSDOS
134 int inter_packet_wait; /* offline: wait between packets */
135 void (*wait_proc)(void); /* call proc while waiting */
136#endif
137
138 struct pcap_sf sf;
139 struct pcap_md md;
140
141 /*
142 * Read buffer.
143 */
144 int bufsize;
145 u_char *buffer;
146 u_char *bp;
147 int cc;
148
149 /*
150 * Place holder for pcap_next().
151 */
152 u_char *pkt;
153
|
| 154 /* We're accepting only packets in this direction/these directions. */
155 direction_t direction;
156
|
146 /*
147 * Methods.
148 */
149 int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *);
150 int (*inject_op)(pcap_t *, const void *, size_t);
151 int (*setfilter_op)(pcap_t *, struct bpf_program *);
| 157 /*
158 * Methods.
159 */
160 int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *);
161 int (*inject_op)(pcap_t *, const void *, size_t);
162 int (*setfilter_op)(pcap_t *, struct bpf_program *);
|
| 163 int (*setdirection_op)(pcap_t *, direction_t);
|
152 int (*set_datalink_op)(pcap_t *, int);
153 int (*getnonblock_op)(pcap_t *, char *);
154 int (*setnonblock_op)(pcap_t *, int, char *);
155 int (*stats_op)(pcap_t *, struct pcap_stat *);
156 void (*close_op)(pcap_t *);
157
158 /*
159 * Placeholder for filter code if bpf not in kernel.
160 */
161 struct bpf_program fcode;
162
163 char errbuf[PCAP_ERRBUF_SIZE + 1];
164 int dlt_count;
165 u_int *dlt_list;
166
167 struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */
168};
169
170/*
171 * This is a timeval as stored in disk in a dumpfile.
172 * It has to use the same types everywhere, independent of the actual
173 * `struct timeval'
174 */
175
176struct pcap_timeval {
177 bpf_int32 tv_sec; /* seconds */
178 bpf_int32 tv_usec; /* microseconds */
179};
180
181/*
182 * How a `pcap_pkthdr' is actually stored in the dumpfile.
183 *
184 * Do not change the format of this structure, in any way (this includes
185 * changes that only affect the length of fields in this structure),
186 * and do not make the time stamp anything other than seconds and
187 * microseconds (e.g., seconds and nanoseconds). Instead:
188 *
189 * introduce a new structure for the new format;
190 *
191 * send mail to "tcpdump-workers@tcpdump.org", requesting a new
192 * magic number for your new capture file format, and, when
193 * you get the new magic number, put it in "savefile.c";
194 *
195 * use that magic number for save files with the changed record
196 * header;
197 *
198 * make the code in "savefile.c" capable of reading files with
199 * the old record header as well as files with the new record header
200 * (using the magic number to determine the header format).
201 *
202 * Then supply the changes to "patches@tcpdump.org", so that future
203 * versions of libpcap and programs that use it (such as tcpdump) will
204 * be able to read your new capture file format.
205 */
206
207struct pcap_sf_pkthdr {
208 struct pcap_timeval ts; /* time stamp */
209 bpf_u_int32 caplen; /* length of portion present */
210 bpf_u_int32 len; /* length this packet (off wire) */
211};
212
213/*
214 * How a `pcap_pkthdr' is actually stored in dumpfiles written
215 * by some patched versions of libpcap (e.g. the ones in Red
216 * Hat Linux 6.1 and 6.2).
217 *
218 * Do not change the format of this structure, in any way (this includes
219 * changes that only affect the length of fields in this structure).
220 * Instead, introduce a new structure, as per the above.
221 */
222
223struct pcap_sf_patched_pkthdr {
224 struct pcap_timeval ts; /* time stamp */
225 bpf_u_int32 caplen; /* length of portion present */
226 bpf_u_int32 len; /* length this packet (off wire) */
227 int index;
228 unsigned short protocol;
229 unsigned char pkt_type;
230};
231
232int yylex(void);
233
234#ifndef min
235#define min(a, b) ((a) > (b) ? (b) : (a))
236#endif
237
238/* XXX should these be in pcap.h? */
239int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *);
240int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *);
241
| 164 int (*set_datalink_op)(pcap_t *, int);
165 int (*getnonblock_op)(pcap_t *, char *);
166 int (*setnonblock_op)(pcap_t *, int, char *);
167 int (*stats_op)(pcap_t *, struct pcap_stat *);
168 void (*close_op)(pcap_t *);
169
170 /*
171 * Placeholder for filter code if bpf not in kernel.
172 */
173 struct bpf_program fcode;
174
175 char errbuf[PCAP_ERRBUF_SIZE + 1];
176 int dlt_count;
177 u_int *dlt_list;
178
179 struct pcap_pkthdr pcap_header; /* This is needed for the pcap_next_ex() to work */
180};
181
182/*
183 * This is a timeval as stored in disk in a dumpfile.
184 * It has to use the same types everywhere, independent of the actual
185 * `struct timeval'
186 */
187
188struct pcap_timeval {
189 bpf_int32 tv_sec; /* seconds */
190 bpf_int32 tv_usec; /* microseconds */
191};
192
193/*
194 * How a `pcap_pkthdr' is actually stored in the dumpfile.
195 *
196 * Do not change the format of this structure, in any way (this includes
197 * changes that only affect the length of fields in this structure),
198 * and do not make the time stamp anything other than seconds and
199 * microseconds (e.g., seconds and nanoseconds). Instead:
200 *
201 * introduce a new structure for the new format;
202 *
203 * send mail to "tcpdump-workers@tcpdump.org", requesting a new
204 * magic number for your new capture file format, and, when
205 * you get the new magic number, put it in "savefile.c";
206 *
207 * use that magic number for save files with the changed record
208 * header;
209 *
210 * make the code in "savefile.c" capable of reading files with
211 * the old record header as well as files with the new record header
212 * (using the magic number to determine the header format).
213 *
214 * Then supply the changes to "patches@tcpdump.org", so that future
215 * versions of libpcap and programs that use it (such as tcpdump) will
216 * be able to read your new capture file format.
217 */
218
219struct pcap_sf_pkthdr {
220 struct pcap_timeval ts; /* time stamp */
221 bpf_u_int32 caplen; /* length of portion present */
222 bpf_u_int32 len; /* length this packet (off wire) */
223};
224
225/*
226 * How a `pcap_pkthdr' is actually stored in dumpfiles written
227 * by some patched versions of libpcap (e.g. the ones in Red
228 * Hat Linux 6.1 and 6.2).
229 *
230 * Do not change the format of this structure, in any way (this includes
231 * changes that only affect the length of fields in this structure).
232 * Instead, introduce a new structure, as per the above.
233 */
234
235struct pcap_sf_patched_pkthdr {
236 struct pcap_timeval ts; /* time stamp */
237 bpf_u_int32 caplen; /* length of portion present */
238 bpf_u_int32 len; /* length this packet (off wire) */
239 int index;
240 unsigned short protocol;
241 unsigned char pkt_type;
242};
243
244int yylex(void);
245
246#ifndef min
247#define min(a, b) ((a) > (b) ? (b) : (a))
248#endif
249
250/* XXX should these be in pcap.h? */
251int pcap_offline_read(pcap_t *, int, pcap_handler, u_char *);
252int pcap_read(pcap_t *, int cnt, pcap_handler, u_char *);
253
|
242
243/*
244 * Ultrix, DEC OSF/1^H^H^H^H^H^H^H^H^HDigital UNIX^H^H^H^H^H^H^H^H^H^H^H^H
245 * Tru64 UNIX, and NetBSD pad to make everything line up on a nice boundary.
246 */
247#if defined(ultrix) || defined(__osf__) || defined(__NetBSD__)
248#define PCAP_FDDIPAD 3
| 254#ifndef HAVE_STRLCPY
255#define strlcpy(x, y, z) \
256 (strncpy((x), (y), (z)), \
257 ((z) <= 0 ? 0 : ((x)[(z) - 1] = '\0')), \
258 strlen((y)))
|
249#endif
250
251#include <stdarg.h>
252
253/*
254 * Routines that most pcap implementations can use for non-blocking mode.
255 */
256#if !defined(WIN32) && !defined(MSDOS)
257int pcap_getnonblock_fd(pcap_t *, char *);
258int pcap_setnonblock_fd(pcap_t *p, int, char *);
259#endif
260
261void pcap_close_common(pcap_t *);
262
263/*
264 * Internal interfaces for "pcap_findalldevs()".
265 *
266 * "pcap_platform_finddevs()" is a platform-dependent routine to
267 * add devices not found by the "standard" mechanisms (SIOCGIFCONF,
268 * "getifaddrs()", etc..
269 *
270 * "pcap_add_if()" adds an interface to the list of interfaces.
271 */
272int pcap_platform_finddevs(pcap_if_t **, char *);
273int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *,
274 size_t, struct sockaddr *, size_t, struct sockaddr *, size_t,
275 struct sockaddr *, size_t, char *);
276int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *);
277struct sockaddr *dup_sockaddr(struct sockaddr *, size_t);
278int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int,
279 const char *, char *);
280
281#ifdef WIN32
282char *pcap_win32strerror(void);
283#endif
284
285int install_bpf_program(pcap_t *, struct bpf_program *);
286
287int pcap_strcasecmp(const char *, const char *);
288
289#ifdef __cplusplus
290}
291#endif
292
293#endif
| 259#endif
260
261#include <stdarg.h>
262
263/*
264 * Routines that most pcap implementations can use for non-blocking mode.
265 */
266#if !defined(WIN32) && !defined(MSDOS)
267int pcap_getnonblock_fd(pcap_t *, char *);
268int pcap_setnonblock_fd(pcap_t *p, int, char *);
269#endif
270
271void pcap_close_common(pcap_t *);
272
273/*
274 * Internal interfaces for "pcap_findalldevs()".
275 *
276 * "pcap_platform_finddevs()" is a platform-dependent routine to
277 * add devices not found by the "standard" mechanisms (SIOCGIFCONF,
278 * "getifaddrs()", etc..
279 *
280 * "pcap_add_if()" adds an interface to the list of interfaces.
281 */
282int pcap_platform_finddevs(pcap_if_t **, char *);
283int add_addr_to_iflist(pcap_if_t **, const char *, u_int, struct sockaddr *,
284 size_t, struct sockaddr *, size_t, struct sockaddr *, size_t,
285 struct sockaddr *, size_t, char *);
286int pcap_add_if(pcap_if_t **, const char *, u_int, const char *, char *);
287struct sockaddr *dup_sockaddr(struct sockaddr *, size_t);
288int add_or_find_if(pcap_if_t **, pcap_if_t **, const char *, u_int,
289 const char *, char *);
290
291#ifdef WIN32
292char *pcap_win32strerror(void);
293#endif
294
295int install_bpf_program(pcap_t *, struct bpf_program *);
296
297int pcap_strcasecmp(const char *, const char *);
298
299#ifdef __cplusplus
300}
301#endif
302
303#endif
|