6 * Copyright (c) 1998 by Gilbert Ramirez <gram@alumni.rice.edu>
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #ifndef __WTAP_INT_H__
24 #define __WTAP_INT_H__
26 #ifdef HAVE_SYS_TIME_H
34 #ifdef HAVE_WINSOCK2_H
38 #include <wsutil/file_util.h>
42 int wtap_fstat(wtap *wth, ws_statb64 *statb, int *err);
44 typedef gboolean (*subtype_read_func)(struct wtap*, int*, char**, gint64*);
45 typedef gboolean (*subtype_seek_read_func)(struct wtap*, gint64,
46 struct wtap_pkthdr *, guint8*,
49 * Struct holding data of the currently read file.
53 FILE_T random_fh; /**< Secondary FILE_T for random access */
55 guint snapshot_length;
56 struct Buffer *frame_buffer;
57 struct wtap_pkthdr phdr;
58 struct wtapng_section_s shb_hdr;
59 guint number_of_interfaces; /**< The number of interfaces a capture was made on, number of IDB:s in a pcapng file or equivalent(?)*/
60 GArray *interface_data; /**< An array holding the interface data from pcapng IDB:s or equivalent(?)*/
64 subtype_read_func subtype_read;
65 subtype_seek_read_func subtype_seek_read;
66 void (*subtype_sequential_close)(struct wtap*);
67 void (*subtype_close)(struct wtap*);
68 int file_encap; /* per-file, for those
69 * file formats that have
70 * per-file encapsulation
73 int tsprecision; /* timestamp precision of the lower 32bits
74 * e.g. WTAP_FILE_TSPREC_USEC
76 wtap_new_ipv4_callback_t add_new_ipv4;
77 wtap_new_ipv6_callback_t add_new_ipv6;
84 * This could either be a FILE * or a gzFile.
86 typedef void *WFILE_T;
88 typedef gboolean (*subtype_write_func)(struct wtap_dumper*,
89 const struct wtap_pkthdr*,
91 typedef gboolean (*subtype_close_func)(struct wtap_dumper*, int*);
103 subtype_write_func subtype_write;
104 subtype_close_func subtype_close;
106 int tsprecision; /**< timestamp precision of the lower 32bits
107 * e.g. WTAP_FILE_TSPREC_USEC
109 struct addrinfo *addrinfo_list;
110 struct wtapng_section_s *shb_hdr;
111 guint number_of_interfaces; /**< The number of interfaces a capture was made on, number of IDB:s in a pcapng file or equivalent(?)*/
112 GArray *interface_data; /**< An array holding the interface data from pcapng IDB:s or equivalent(?) NULL if not present.*/
115 extern gboolean wtap_dump_file_write(wtap_dumper *wdh, const void *buf,
116 size_t bufsize, int *err);
117 extern gint64 wtap_dump_file_seek(wtap_dumper *wdh, gint64 offset, int whence, int *err);
118 extern gint64 wtap_dump_file_tell(wtap_dumper *wdh);
121 extern gint wtap_num_file_types;
123 /* Macros to byte-swap 64-bit, 32-bit and 16-bit quantities. */
125 ((((x)&G_GINT64_CONSTANT(0xFF00000000000000U))>>56) | \
126 (((x)&G_GINT64_CONSTANT(0x00FF000000000000U))>>40) | \
127 (((x)&G_GINT64_CONSTANT(0x0000FF0000000000U))>>24) | \
128 (((x)&G_GINT64_CONSTANT(0x000000FF00000000U))>>8) | \
129 (((x)&G_GINT64_CONSTANT(0x00000000FF000000U))<<8) | \
130 (((x)&G_GINT64_CONSTANT(0x0000000000FF0000U))<<24) | \
131 (((x)&G_GINT64_CONSTANT(0x000000000000FF00U))<<40) | \
132 (((x)&G_GINT64_CONSTANT(0x00000000000000FFU))<<56))
134 ((((x)&0xFF000000)>>24) | \
135 (((x)&0x00FF0000)>>8) | \
136 (((x)&0x0000FF00)<<8) | \
137 (((x)&0x000000FF)<<24))
139 ((((x)&0xFF00)>>8) | \
142 /* Macros to byte-swap possibly-unaligned 64-bit, 32-bit and 16-bit quantities;
143 * they take a pointer to the quantity, and byte-swap it in place.
145 #define PBSWAP64(p) \
161 #define PBSWAP32(p) \
171 #define PBSWAP16(p) \
179 /* Turn host-byte-order values into little-endian values. */
180 #define htoles(s) GUINT16_TO_LE(s)
181 #define htolel(l) GUINT32_TO_LE(l)
182 #define htolell(ll) GUINT64_TO_LE(ll)
184 /* Pointer versions of ntohs and ntohl. Given a pointer to a member of a
185 * byte array, returns the value of the two or four bytes at the pointer.
186 * The pletoh[sl] versions return the little-endian representation.
187 * We also provide pntohll and pletohll, which extract 64-bit integral
190 * These will work regardless of the byte alignment of the pointer.
194 #define pntohs(p) ((guint16) \
195 ((guint16)*((const guint8 *)(p)+0)<<8| \
196 (guint16)*((const guint8 *)(p)+1)<<0))
200 #define pntoh24(p) ((guint32)*((const guint8 *)(p)+0)<<16| \
201 (guint32)*((const guint8 *)(p)+1)<<8| \
202 (guint32)*((const guint8 *)(p)+2)<<0)
206 #define pntohl(p) ((guint32)*((const guint8 *)(p)+0)<<24| \
207 (guint32)*((const guint8 *)(p)+1)<<16| \
208 (guint32)*((const guint8 *)(p)+2)<<8| \
209 (guint32)*((const guint8 *)(p)+3)<<0)
213 #define pntohll(p) ((guint64)*((const guint8 *)(p)+0)<<56| \
214 (guint64)*((const guint8 *)(p)+1)<<48| \
215 (guint64)*((const guint8 *)(p)+2)<<40| \
216 (guint64)*((const guint8 *)(p)+3)<<32| \
217 (guint64)*((const guint8 *)(p)+4)<<24| \
218 (guint64)*((const guint8 *)(p)+5)<<16| \
219 (guint64)*((const guint8 *)(p)+6)<<8| \
220 (guint64)*((const guint8 *)(p)+7)<<0)
225 #define pletohs(p) ((guint16) \
226 ((guint16)*((const guint8 *)(p)+1)<<8| \
227 (guint16)*((const guint8 *)(p)+0)<<0))
231 #define pletoh24(p) ((guint32)*((const guint8 *)(p)+2)<<16| \
232 (guint32)*((const guint8 *)(p)+1)<<8| \
233 (guint32)*((const guint8 *)(p)+0)<<0)
238 #define pletohl(p) ((guint32)*((const guint8 *)(p)+3)<<24| \
239 (guint32)*((const guint8 *)(p)+2)<<16| \
240 (guint32)*((const guint8 *)(p)+1)<<8| \
241 (guint32)*((const guint8 *)(p)+0)<<0)
246 #define pletohll(p) ((guint64)*((const guint8 *)(p)+7)<<56| \
247 (guint64)*((const guint8 *)(p)+6)<<48| \
248 (guint64)*((const guint8 *)(p)+5)<<40| \
249 (guint64)*((const guint8 *)(p)+4)<<32| \
250 (guint64)*((const guint8 *)(p)+3)<<24| \
251 (guint64)*((const guint8 *)(p)+2)<<16| \
252 (guint64)*((const guint8 *)(p)+1)<<8| \
253 (guint64)*((const guint8 *)(p)+0)<<0)
256 /* Pointer routines to put items out in a particular byte order.
257 * These will work regardless of the byte alignment of the pointer.
261 #define phtons(p, v) \
263 (p)[0] = (guint8)((v) >> 8); \
264 (p)[1] = (guint8)((v) >> 0); \
269 #define phton24(p, v) \
271 (p)[0] = (guint8)((v) >> 16); \
272 (p)[1] = (guint8)((v) >> 8); \
273 (p)[2] = (guint8)((v) >> 0); \
278 #define phtonl(p, v) \
280 (p)[0] = (guint8)((v) >> 24); \
281 (p)[1] = (guint8)((v) >> 16); \
282 (p)[2] = (guint8)((v) >> 8); \
283 (p)[3] = (guint8)((v) >> 0); \
288 #define phtonll(p, v) \
290 (p)[0] = (guint8)((v) >> 56); \
291 (p)[1] = (guint8)((v) >> 48); \
292 (p)[2] = (guint8)((v) >> 40); \
293 (p)[3] = (guint8)((v) >> 32); \
294 (p)[4] = (guint8)((v) >> 24); \
295 (p)[5] = (guint8)((v) >> 16); \
296 (p)[6] = (guint8)((v) >> 8); \
297 (p)[7] = (guint8)((v) >> 0); \
302 #define phtoles(p, v) \
304 (p)[0] = (guint8)((v) >> 0); \
305 (p)[1] = (guint8)((v) >> 8); \
310 #define phtolel(p, v) \
312 (p)[0] = (guint8)((v) >> 0); \
313 (p)[1] = (guint8)((v) >> 8); \
314 (p)[2] = (guint8)((v) >> 16); \
315 (p)[3] = (guint8)((v) >> 24); \
320 #define phtolell(p, v) \
322 (p)[0] = (guint8)((v) >> 0); \
323 (p)[1] = (guint8)((v) >> 8); \
324 (p)[2] = (guint8)((v) >> 16); \
325 (p)[3] = (guint8)((v) >> 24); \
326 (p)[4] = (guint8)((v) >> 32); \
327 (p)[5] = (guint8)((v) >> 40); \
328 (p)[6] = (guint8)((v) >> 48); \
329 (p)[7] = (guint8)((v) >> 56); \
333 #define wtap_file_read_unknown_bytes(target, num_bytes, fh, err, err_info) \
337 _bytes_read = file_read((target), (num_bytes), (fh)); \
338 if (_bytes_read != (int) (num_bytes)) { \
339 *(err) = file_error((fh), (err_info)); \
345 #define wtap_file_read_expected_bytes(target, num_bytes, fh, err, err_info) \
349 _bytes_read = file_read((target), (num_bytes), (fh)); \
350 if (_bytes_read != (int) (num_bytes)) { \
351 *(err) = file_error((fh), (err_info)); \
352 if (*(err) == 0 && _bytes_read > 0) { \
353 *(err) = WTAP_ERR_SHORT_READ; \
360 /* glib doesn't have g_ptr_array_len of all things!*/
361 #ifndef g_ptr_array_len
362 #define g_ptr_array_len(a) ((a)->len)
365 /*** get GSList of all compressed file extensions ***/
366 GSList *wtap_get_compressed_file_extensions(void);
368 #endif /* __WTAP_INT_H__ */
376 * indent-tabs-mode: t
379 * ex: set shiftwidth=8 tabstop=8 noexpandtab:
380 * :indentSize=8:tabSize=8:noTabs=false: