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snoop.h 2.6 KB

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  1. /* $Id: snoop.h 767 2004-10-06 12:48:49Z aturner $ */
  2. /*
  3. * Copyright (c) 2001-2004 Aaron Turner, Matt Bing.
  4. * 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. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in the
  14. * documentation and/or other materials provided with the distribution.
  15. * 3. Neither the names of the copyright owners nor the names of its
  16. * contributors may be used to endorse or promote products derived from
  17. * this software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  20. * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21. * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  22. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
  23. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  25. * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  27. * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28. * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  29. * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30. */
  31. #ifndef _SNOOP_H_
  32. #define _SNOOP_H_
  33. #include "config.h"
  34. #include "tcpreplay.h"
  35. /* magic constant for snoop files */
  36. #define SNOOP_MAGIC "snoop\0\0\0"
  37. /* snoop data stored once at the beginning of the file, network byte order */
  38. struct snoop_hdr {
  39. char magic[8];
  40. u_int32_t version;
  41. u_int32_t network;
  42. };
  43. /* data prefixing each packet, network byte order */
  44. struct snoop_rec {
  45. u_int32_t orig_len; /* actual length of packet */
  46. u_int32_t incl_len; /* number of octets captured in file */
  47. u_int32_t rec_len; /* length of record */
  48. u_int32_t cum_drops; /* cumulative number of dropped packets */
  49. u_int32_t ts_sec; /* timestamp seconds */
  50. u_int32_t ts_usec; /* timestamp microseconds */
  51. };
  52. /* data describing a snoop capture */
  53. struct snoop_info {
  54. char *linktype;
  55. int version;
  56. int cnt;
  57. int bytes;
  58. int trunc;
  59. struct timespec start_tm;
  60. struct timespec finish_tm;
  61. };
  62. int is_snoop(int);
  63. int get_next_snoop(int, struct packet *);
  64. void stat_snoop(int, struct snoop_info *);
  65. #endif