contrib/tcpdump/signature.h

   1 /*
   2  * Redistribution and use in source and binary forms, with or without
   3  * modification, are permitted provided that: (1) source code
   4  * distributions retain the above copyright notice and this paragraph
   5  * in its entirety, and (2) distributions including binary code include
   6  * the above copyright notice and this paragraph in its entirety in
   7  * the documentation or other materials provided with the distribution.
   8  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
   9  * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
  10  * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  11  * FOR A PARTICULAR PURPOSE.
  12  *
  13  * Functions for signature and digest verification.
  14  *
  15  * Original code by Hannes Gredler (hannes@gredler.at)
  16  */
  17
  18 /* for netdissect_options */
  19 #include "netdissect.h"
  20
  21 /* signature checking result codes */
  22 #define SIGNATURE_VALID         0
  23 #define SIGNATURE_INVALID       1
  24 #define CANT_ALLOCATE_COPY      2
  25 #define CANT_CHECK_SIGNATURE    3
  26
  27 extern const struct tok signature_check_values[];
  28 extern int signature_verify(netdissect_options *, const u_char *, u_int,
  29                             const u_char *, void (*)(void *), const void *);