Annotation of embedaddon/libnet/win32/wpdpack/Include/pcap/pcap.h, revision 1.1.1.1
1.1 misho 1: /* -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*- */
2: /*
3: * Copyright (c) 1993, 1994, 1995, 1996, 1997
4: * The Regents of the University of California. All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: * 3. All advertising materials mentioning features or use of this software
15: * must display the following acknowledgement:
16: * This product includes software developed by the Computer Systems
17: * Engineering Group at Lawrence Berkeley Laboratory.
18: * 4. Neither the name of the University nor of the Laboratory may be used
19: * to endorse or promote products derived from this software without
20: * specific prior written permission.
21: *
22: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32: * SUCH DAMAGE.
33: *
34: * @(#) $Header: /tcpdump/master/libpcap/pcap/pcap.h,v 1.4.2.11 2008-10-06 15:38:39 gianluca Exp $ (LBL)
35: */
36:
37: #ifndef lib_pcap_pcap_h
38: #define lib_pcap_pcap_h
39:
40: #if defined(WIN32)
41: #include <pcap-stdinc.h>
42: #elif defined(MSDOS)
43: #include <sys/types.h>
44: #include <sys/socket.h> /* u_int, u_char etc. */
45: #else /* UN*X */
46: #include <sys/types.h>
47: #include <sys/time.h>
48: #endif /* WIN32/MSDOS/UN*X */
49:
50: #ifndef PCAP_DONT_INCLUDE_PCAP_BPF_H
51: #include <pcap/bpf.h>
52: #endif
53:
54: #include <stdio.h>
55:
56: #ifdef HAVE_REMOTE
57: // We have to define the SOCKET here, although it has been defined in sockutils.h
58: // This is to avoid the distribution of the 'sockutils.h' file around
59: // (for example in the WinPcap developer's pack)
60: #ifndef SOCKET
61: #ifdef WIN32
62: #define SOCKET unsigned int
63: #else
64: #define SOCKET int
65: #endif
66: #endif
67: #endif
68:
69: #ifdef __cplusplus
70: extern "C" {
71: #endif
72:
73: #define PCAP_VERSION_MAJOR 2
74: #define PCAP_VERSION_MINOR 4
75:
76: #define PCAP_ERRBUF_SIZE 256
77:
78: /*
79: * Compatibility for systems that have a bpf.h that
80: * predates the bpf typedefs for 64-bit support.
81: */
82: #if BPF_RELEASE - 0 < 199406
83: typedef int bpf_int32;
84: typedef u_int bpf_u_int32;
85: #endif
86:
87: typedef struct pcap pcap_t;
88: typedef struct pcap_dumper pcap_dumper_t;
89: typedef struct pcap_if pcap_if_t;
90: typedef struct pcap_addr pcap_addr_t;
91:
92: /*
93: * The first record in the file contains saved values for some
94: * of the flags used in the printout phases of tcpdump.
95: * Many fields here are 32 bit ints so compilers won't insert unwanted
96: * padding; these files need to be interchangeable across architectures.
97: *
98: * Do not change the layout of this structure, in any way (this includes
99: * changes that only affect the length of fields in this structure).
100: *
101: * Also, do not change the interpretation of any of the members of this
102: * structure, in any way (this includes using values other than
103: * LINKTYPE_ values, as defined in "savefile.c", in the "linktype"
104: * field).
105: *
106: * Instead:
107: *
108: * introduce a new structure for the new format, if the layout
109: * of the structure changed;
110: *
111: * send mail to "tcpdump-workers@lists.tcpdump.org", requesting
112: * a new magic number for your new capture file format, and, when
113: * you get the new magic number, put it in "savefile.c";
114: *
115: * use that magic number for save files with the changed file
116: * header;
117: *
118: * make the code in "savefile.c" capable of reading files with
119: * the old file header as well as files with the new file header
120: * (using the magic number to determine the header format).
121: *
122: * Then supply the changes as a patch at
123: *
124: * http://sourceforge.net/projects/libpcap/
125: *
126: * so that future versions of libpcap and programs that use it (such as
127: * tcpdump) will be able to read your new capture file format.
128: */
129: struct pcap_file_header {
130: bpf_u_int32 magic;
131: u_short version_major;
132: u_short version_minor;
133: bpf_int32 thiszone; /* gmt to local correction */
134: bpf_u_int32 sigfigs; /* accuracy of timestamps */
135: bpf_u_int32 snaplen; /* max length saved portion of each pkt */
136: bpf_u_int32 linktype; /* data link type (LINKTYPE_*) */
137: };
138:
139: /*
140: * Macros for the value returned by pcap_datalink_ext().
141: *
142: * If LT_FCS_LENGTH_PRESENT(x) is true, the LT_FCS_LENGTH(x) macro
143: * gives the FCS length of packets in the capture.
144: */
145: #define LT_FCS_LENGTH_PRESENT(x) ((x) & 0x04000000)
146: #define LT_FCS_LENGTH(x) (((x) & 0xF0000000) >> 28)
147: #define LT_FCS_DATALINK_EXT(x) ((((x) & 0xF) << 28) | 0x04000000)
148:
149: typedef enum {
150: PCAP_D_INOUT = 0,
151: PCAP_D_IN,
152: PCAP_D_OUT
153: } pcap_direction_t;
154:
155: /*
156: * Generic per-packet information, as supplied by libpcap.
157: *
158: * The time stamp can and should be a "struct timeval", regardless of
159: * whether your system supports 32-bit tv_sec in "struct timeval",
160: * 64-bit tv_sec in "struct timeval", or both if it supports both 32-bit
161: * and 64-bit applications. The on-disk format of savefiles uses 32-bit
162: * tv_sec (and tv_usec); this structure is irrelevant to that. 32-bit
163: * and 64-bit versions of libpcap, even if they're on the same platform,
164: * should supply the appropriate version of "struct timeval", even if
165: * that's not what the underlying packet capture mechanism supplies.
166: */
167: struct pcap_pkthdr {
168: struct timeval ts; /* time stamp */
169: bpf_u_int32 caplen; /* length of portion present */
170: bpf_u_int32 len; /* length this packet (off wire) */
171: };
172:
173: /*
174: * As returned by the pcap_stats()
175: */
176: struct pcap_stat {
177: u_int ps_recv; /* number of packets received */
178: u_int ps_drop; /* number of packets dropped */
179: u_int ps_ifdrop; /* drops by interface XXX not yet supported */
180: #ifdef HAVE_REMOTE
181: u_int ps_capt; /* number of packets that are received by the application; please get rid off the Win32 ifdef */
182: u_int ps_sent; /* number of packets sent by the server on the network */
183: u_int ps_netdrop; /* number of packets lost on the network */
184: #endif /* HAVE_REMOTE */
185: };
186:
187: #ifdef MSDOS
188: /*
189: * As returned by the pcap_stats_ex()
190: */
191: struct pcap_stat_ex {
192: u_long rx_packets; /* total packets received */
193: u_long tx_packets; /* total packets transmitted */
194: u_long rx_bytes; /* total bytes received */
195: u_long tx_bytes; /* total bytes transmitted */
196: u_long rx_errors; /* bad packets received */
197: u_long tx_errors; /* packet transmit problems */
198: u_long rx_dropped; /* no space in Rx buffers */
199: u_long tx_dropped; /* no space available for Tx */
200: u_long multicast; /* multicast packets received */
201: u_long collisions;
202:
203: /* detailed rx_errors: */
204: u_long rx_length_errors;
205: u_long rx_over_errors; /* receiver ring buff overflow */
206: u_long rx_crc_errors; /* recv'd pkt with crc error */
207: u_long rx_frame_errors; /* recv'd frame alignment error */
208: u_long rx_fifo_errors; /* recv'r fifo overrun */
209: u_long rx_missed_errors; /* recv'r missed packet */
210:
211: /* detailed tx_errors */
212: u_long tx_aborted_errors;
213: u_long tx_carrier_errors;
214: u_long tx_fifo_errors;
215: u_long tx_heartbeat_errors;
216: u_long tx_window_errors;
217: };
218: #endif
219:
220: /*
221: * Item in a list of interfaces.
222: */
223: struct pcap_if {
224: struct pcap_if *next;
225: char *name; /* name to hand to "pcap_open_live()" */
226: char *description; /* textual description of interface, or NULL */
227: struct pcap_addr *addresses;
228: bpf_u_int32 flags; /* PCAP_IF_ interface flags */
229: };
230:
231: #define PCAP_IF_LOOPBACK 0x00000001 /* interface is loopback */
232:
233: /*
234: * Representation of an interface address.
235: */
236: struct pcap_addr {
237: struct pcap_addr *next;
238: struct sockaddr *addr; /* address */
239: struct sockaddr *netmask; /* netmask for that address */
240: struct sockaddr *broadaddr; /* broadcast address for that address */
241: struct sockaddr *dstaddr; /* P2P destination address for that address */
242: };
243:
244: typedef void (*pcap_handler)(u_char *, const struct pcap_pkthdr *,
245: const u_char *);
246:
247: /*
248: * Error codes for the pcap API.
249: * These will all be negative, so you can check for the success or
250: * failure of a call that returns these codes by checking for a
251: * negative value.
252: */
253: #define PCAP_ERROR -1 /* generic error code */
254: #define PCAP_ERROR_BREAK -2 /* loop terminated by pcap_breakloop */
255: #define PCAP_ERROR_NOT_ACTIVATED -3 /* the capture needs to be activated */
256: #define PCAP_ERROR_ACTIVATED -4 /* the operation can't be performed on already activated captures */
257: #define PCAP_ERROR_NO_SUCH_DEVICE -5 /* no such device exists */
258: #define PCAP_ERROR_RFMON_NOTSUP -6 /* this device doesn't support rfmon (monitor) mode */
259: #define PCAP_ERROR_NOT_RFMON -7 /* operation supported only in monitor mode */
260: #define PCAP_ERROR_PERM_DENIED -8 /* no permission to open the device */
261: #define PCAP_ERROR_IFACE_NOT_UP -9 /* interface isn't up */
262:
263: /*
264: * Warning codes for the pcap API.
265: * These will all be positive and non-zero, so they won't look like
266: * errors.
267: */
268: #define PCAP_WARNING 1 /* generic warning code */
269: #define PCAP_WARNING_PROMISC_NOTSUP 2 /* this device doesn't support promiscuous mode */
270:
271: char *pcap_lookupdev(char *);
272: int pcap_lookupnet(const char *, bpf_u_int32 *, bpf_u_int32 *, char *);
273:
274: pcap_t *pcap_create(const char *, char *);
275: int pcap_set_snaplen(pcap_t *, int);
276: int pcap_set_promisc(pcap_t *, int);
277: int pcap_can_set_rfmon(pcap_t *);
278: int pcap_set_rfmon(pcap_t *, int);
279: int pcap_set_timeout(pcap_t *, int);
280: int pcap_set_buffer_size(pcap_t *, int);
281: int pcap_activate(pcap_t *);
282:
283: pcap_t *pcap_open_live(const char *, int, int, int, char *);
284: pcap_t *pcap_open_dead(int, int);
285: pcap_t *pcap_open_offline(const char *, char *);
286: #if defined(WIN32)
287: pcap_t *pcap_hopen_offline(intptr_t, char *);
288: #if !defined(LIBPCAP_EXPORTS)
289: #define pcap_fopen_offline(f,b) \
290: pcap_hopen_offline(_get_osfhandle(_fileno(f)), b)
291: #else /*LIBPCAP_EXPORTS*/
292: static pcap_t *pcap_fopen_offline(FILE *, char *);
293: #endif
294: #else /*WIN32*/
295: pcap_t *pcap_fopen_offline(FILE *, char *);
296: #endif /*WIN32*/
297:
298: void pcap_close(pcap_t *);
299: int pcap_loop(pcap_t *, int, pcap_handler, u_char *);
300: int pcap_dispatch(pcap_t *, int, pcap_handler, u_char *);
301: const u_char*
302: pcap_next(pcap_t *, struct pcap_pkthdr *);
303: int pcap_next_ex(pcap_t *, struct pcap_pkthdr **, const u_char **);
304: void pcap_breakloop(pcap_t *);
305: int pcap_stats(pcap_t *, struct pcap_stat *);
306: int pcap_setfilter(pcap_t *, struct bpf_program *);
307: int pcap_setdirection(pcap_t *, pcap_direction_t);
308: int pcap_getnonblock(pcap_t *, char *);
309: int pcap_setnonblock(pcap_t *, int, char *);
310: int pcap_inject(pcap_t *, const void *, size_t);
311: int pcap_sendpacket(pcap_t *, const u_char *, int);
312: const char *pcap_statustostr(int);
313: const char *pcap_strerror(int);
314: char *pcap_geterr(pcap_t *);
315: void pcap_perror(pcap_t *, char *);
316: int pcap_compile(pcap_t *, struct bpf_program *, const char *, int,
317: bpf_u_int32);
318: int pcap_compile_nopcap(int, int, struct bpf_program *,
319: const char *, int, bpf_u_int32);
320: void pcap_freecode(struct bpf_program *);
321: int pcap_offline_filter(struct bpf_program *, const struct pcap_pkthdr *,
322: const u_char *);
323: int pcap_datalink(pcap_t *);
324: int pcap_datalink_ext(pcap_t *);
325: int pcap_list_datalinks(pcap_t *, int **);
326: int pcap_set_datalink(pcap_t *, int);
327: void pcap_free_datalinks(int *);
328: int pcap_datalink_name_to_val(const char *);
329: const char *pcap_datalink_val_to_name(int);
330: const char *pcap_datalink_val_to_description(int);
331: int pcap_snapshot(pcap_t *);
332: int pcap_is_swapped(pcap_t *);
333: int pcap_major_version(pcap_t *);
334: int pcap_minor_version(pcap_t *);
335:
336: /* XXX */
337: FILE *pcap_file(pcap_t *);
338: int pcap_fileno(pcap_t *);
339:
340: pcap_dumper_t *pcap_dump_open(pcap_t *, const char *);
341: pcap_dumper_t *pcap_dump_fopen(pcap_t *, FILE *fp);
342: FILE *pcap_dump_file(pcap_dumper_t *);
343: long pcap_dump_ftell(pcap_dumper_t *);
344: int pcap_dump_flush(pcap_dumper_t *);
345: void pcap_dump_close(pcap_dumper_t *);
346: void pcap_dump(u_char *, const struct pcap_pkthdr *, const u_char *);
347:
348: int pcap_findalldevs(pcap_if_t **, char *);
349: void pcap_freealldevs(pcap_if_t *);
350:
351: const char *pcap_lib_version(void);
352:
353: /* XXX this guy lives in the bpf tree */
354: u_int bpf_filter(const struct bpf_insn *, const u_char *, u_int, u_int);
355: int bpf_validate(const struct bpf_insn *f, int len);
356: char *bpf_image(const struct bpf_insn *, int);
357: void bpf_dump(const struct bpf_program *, int);
358:
359: #if defined(WIN32)
360:
361: /*
362: * Win32 definitions
363: */
364:
365: int pcap_setbuff(pcap_t *p, int dim);
366: int pcap_setmode(pcap_t *p, int mode);
367: int pcap_setmintocopy(pcap_t *p, int size);
368:
369: #ifdef WPCAP
370: /* Include file with the wpcap-specific extensions */
371: #include <Win32-Extensions.h>
372: #endif /* WPCAP */
373:
374: #define MODE_CAPT 0
375: #define MODE_STAT 1
376: #define MODE_MON 2
377:
378: #elif defined(MSDOS)
379:
380: /*
381: * MS-DOS definitions
382: */
383:
384: int pcap_stats_ex (pcap_t *, struct pcap_stat_ex *);
385: void pcap_set_wait (pcap_t *p, void (*yield)(void), int wait);
386: u_long pcap_mac_packets (void);
387:
388: #else /* UN*X */
389:
390: /*
391: * UN*X definitions
392: */
393:
394: int pcap_get_selectable_fd(pcap_t *);
395:
396: #endif /* WIN32/MSDOS/UN*X */
397:
398: #ifdef HAVE_REMOTE
399: /* Includes most of the public stuff that is needed for the remote capture */
400: #include <remote-ext.h>
401: #endif /* HAVE_REMOTE */
402:
403: #ifdef __cplusplus
404: }
405: #endif
406:
407: #endif
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