external/bsd/dhcp/dist/dst/dst_internal.h

   1 /*      $NetBSD: dst_internal.h,v 1.1.1.2 2014/07/12 11:57:50 spz Exp $ */
   2 #ifndef DST_INTERNAL_H
   3 #define DST_INTERNAL_H
   4
   5 /*
   6  * Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
   7  * Portions Copyright (c) 2007,2009 by Internet Systems Consortium, Inc. ("ISC")
   8  *
   9  * Permission to use, copy modify, and distribute this software for any
  10  * purpose with or without fee is hereby granted, provided that the above
  11  * copyright notice and this permission notice appear in all copies.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS" AND TRUSTED INFORMATION SYSTEMS
  14  * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL
  16  * TRUSTED INFORMATION SYSTEMS BE LIABLE FOR ANY SPECIAL, DIRECT,
  17  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
  18  * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
  19  * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
  20  * WITH THE USE OR PERFORMANCE OF THE SOFTWARE.
  21  */
  22 #include <limits.h>
  23 #include <sys/param.h>
  24
  25 #ifndef PATH_MAX
  26 # ifdef POSIX_PATH_MAX
  27 #  define PATH_MAX POSIX_PATH_MAX
  28 # else
  29 #  define PATH_MAX 255 /* this is the value of POSIX_PATH_MAX */
  30 # endif
  31 #endif
  32
  33 typedef struct dst_key {
  34         char    *dk_key_name;   /* name of the key */
  35         int     dk_key_size;    /* this is the size of the key in bits */
  36         int     dk_proto;       /* what protocols this key can be used for */
  37         int     dk_alg;         /* algorithm number from key record */
  38         unsigned dk_flags;     /* and the flags of the public key */
  39         unsigned dk_id;        /* identifier of the key */
  40         void    *dk_KEY_struct; /* pointer to key in crypto pkg fmt */
  41         struct dst_func *dk_func; /* point to crypto pgk specific function table */
  42 } DST_KEY;
  43 #define HAS_DST_KEY
  44
  45 #include <isc-dhcp/dst.h>
  46 /*
  47  * define what crypto systems are supported for RSA,
  48  * BSAFE is preferred over RSAREF; only one can be set at any time
  49  */
  50 #if defined(BSAFE) && defined(RSAREF)
  51 # error "Cannot have both BSAFE and RSAREF defined"
  52 #endif
  53
  54 /* Declare dst_lib specific constants */
  55 #define KEY_FILE_FORMAT "1.2"
  56
  57 /* suffixes for key file names */
  58 #define PRIVATE_KEY             "private"
  59 #define PUBLIC_KEY              "key"
  60
  61 /* error handling */
  62 #ifdef REPORT_ERRORS
  63 #define EREPORT(str)            printf str
  64 #else
  65 #define EREPORT(str)
  66 #endif
  67
  68 /* use our own special macro to FRRE memory */
  69
  70 #ifndef SAFE_FREE
  71 #define SAFE_FREE(a) if(a != NULL){memset(a,0, sizeof(*a)); free(a); a=NULL;}
  72 #define SAFE_FREE2(a,s) if (a != NULL && s > 0){memset(a,0, s);free(a); a=NULL;}
  73 #endif
  74
  75 typedef struct dst_func {
  76         int (*sign)(const int mode, DST_KEY *key, void **context,
  77                      const u_int8_t *data, const unsigned len,
  78                      u_int8_t *signature, const unsigned sig_len);
  79         int (*verify)(const int mode, DST_KEY *key, void **context,
  80                        const u_int8_t *data, const unsigned len,
  81                        const u_int8_t *signature, const unsigned sig_len);
  82         int (*compare)(const DST_KEY *key1, const DST_KEY *key2);
  83         int (*generate)(DST_KEY *key, int parms);
  84         void *(*destroy)(void *key);
  85         /* conversion functions */
  86         int (*to_dns_key)(const DST_KEY *key, u_int8_t *out,
  87                           const unsigned out_len);
  88         int (*from_dns_key)(DST_KEY *key, const u_int8_t *str,
  89                             const unsigned str_len);
  90         int (*to_file_fmt)(const DST_KEY *key, char *out,
  91                             const unsigned out_len);
  92         int (*from_file_fmt)(DST_KEY *key, const char *out,
  93                               const unsigned out_len);
  94
  95 } dst_func;
  96
  97 extern dst_func *dst_t_func[DST_MAX_ALGS];
  98 extern const char *key_file_fmt_str;
  99 extern const char *dst_path;
 100
 101 #ifndef DST_HASH_SIZE
 102 #define DST_HASH_SIZE 20        /* RIPEMD160 and SHA-1 are 20 bytes MD5 is 16 */
 103 #endif
 104
 105 #if 0
 106 int dst_bsafe_init(void);
 107 int dst_rsaref_init(void);
 108 #endif
 109
 110 int dst_hmac_md5_init(void);
 111
 112 #if 0
 113 int dst_cylink_init(void);
 114 int dst_eay_dss_init(void);
 115 #endif
 116
 117 /* support functions */
 118 /* base64 to bignum conversion routines */
 119 int       dst_s_conv_bignum_u8_to_b64( char *out_buf, const unsigned out_len,
 120                                        const char *header,
 121                                        const u_int8_t *bin_data,
 122                                        const unsigned bin_len);
 123 int       dst_s_conv_bignum_b64_to_u8( const char **buf, u_int8_t *loc,
 124                                        const unsigned loclen) ;
 125 /* from higher level support routines */
 126 int       dst_s_calculate_bits( const u_int8_t *str, const int max_bits);
 127 int       dst_s_verify_str( const char **buf, const char *str);
 128
 129
 130 /* conversion between dns names and key file names */
 131 size_t    dst_s_filename_length( const char *name, const char *suffix);
 132 int       dst_s_build_filename(  char *filename, const char *name,
 133                                  unsigned id, int alg, const char *suffix,
 134                                  size_t filename_length);
 135
 136 FILE      *dst_s_fopen (const char *filename, const char *mode, unsigned perm);
 137
 138 /* from file prandom.c */
 139 int       dst_s_random( u_int8_t *output, unsigned size);
 140 int       dst_s_semi_random( u_int8_t *output, unsigned size);
 141 u_int32_t dst_s_quick_random( int inc);
 142 void      dst_s_quick_random_set( u_int32_t val, u_int32_t cnt);
 143
 144 /*
 145  * read and write network byte order into u_int?_t
 146  *  all of these should be retired
 147  */
 148 u_int16_t dst_s_get_int16( const u_int8_t *buf);
 149 void      dst_s_put_int16( u_int8_t *buf, const u_int16_t val);
 150
 151 u_int32_t dst_s_get_int32( const u_int8_t *buf);
 152 void      dst_s_put_int32( u_int8_t *buf, const u_int32_t val);
 153
 154 #ifdef DUMP
 155 # undef DUMP
 156 # define DUMP(a,b,c,d) dst_s_dump(a,b,c,d)
 157 #else
 158 # define DUMP(a,b,c,d)
 159 #endif
 160
 161 #if defined (MINIRES_LIB)
 162 #define b64_pton MRb64_pton
 163 #define b64_ntop MRb64_ntop
 164
 165 int b64_pton (char const *, unsigned char *, size_t);
 166 int b64_ntop (unsigned char const *, size_t, char *, size_t);
 167
 168 #define USE_MD5
 169 #endif
 170
 171
 172 #endif /* DST_INTERNAL_H */