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      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 (at) juniper.net)
     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_CHECK_SIGNATURE	2
     25 
     26 extern const struct tok signature_check_values[];
     27 extern int signature_verify(netdissect_options *, const u_char *, u_int, u_char *);
     28