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Annotation of src/lib/libresolv/dst_internal.h, Revision 1.2

1.2     ! joerg       1: /*     $NetBSD: dst_internal.h,v 1.1 2012/11/15 18:48:48 christos Exp $        */
1.1       christos    2:
                      3: #ifndef DST_INTERNAL_H
                      4: #define DST_INTERNAL_H
                      5:
                      6: /*
                      7:  * Portions Copyright (c) 1995-1998 by Trusted Information Systems, Inc.
                      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: #if (!defined(BSD)) || (BSD < 199306)
                     25: # include <sys/bitypes.h>
                     26: #else
                     27: # include <sys/types.h>
                     28: #endif
                     29:
                     30: #ifndef PATH_MAX
                     31: # ifdef POSIX_PATH_MAX
                     32: #  define PATH_MAX POSIX_PATH_MAX
                     33: # else
                     34: #  define PATH_MAX 255 /*%< this is the value of POSIX_PATH_MAX */
                     35: # endif
                     36: #endif
                     37:
                     38: typedef struct dst_key {
                     39:        char    *dk_key_name;   /*%< name of the key */
                     40:        int     dk_key_size;    /*%< this is the size of the key in bits */
                     41:        int     dk_proto;       /*%< what protocols this key can be used for */
                     42:        int     dk_alg;         /*%< algorithm number from key record */
                     43:        u_int32_t dk_flags;     /*%< and the flags of the public key */
                     44:        u_int16_t dk_id;        /*%< identifier of the key */
                     45:        void    *dk_KEY_struct; /*%< pointer to key in crypto pkg fmt */
                     46:        struct dst_func *dk_func; /*%< point to cryptto pgk specific function table */
                     47: } DST_KEY;
                     48: #define HAS_DST_KEY
                     49:
                     50: #include <isc/dst.h>
                     51: /*
                     52:  * define what crypto systems are supported for RSA,
                     53:  * BSAFE is prefered over RSAREF; only one can be set at any time
                     54:  */
                     55: #if defined(BSAFE) && defined(RSAREF)
                     56: # error "Cannot have both BSAFE and RSAREF defined"
                     57: #endif
                     58:
                     59: /* Declare dst_lib specific constants */
                     60: #define KEY_FILE_FORMAT "1.2"
                     61:
                     62: /* suffixes for key file names */
                     63: #define PRIVATE_KEY            "private"
                     64: #define PUBLIC_KEY             "key"
                     65:
                     66: /* error handling */
                     67: #ifdef DEBUG
                     68: #define EREPORT(str)           printf str
                     69: #else
                     70: #define EREPORT(str)           do {} while (/*CONSTCOND*/0)
                     71: #endif
                     72:
                     73: /* use our own special macro to FRRE memory */
                     74:
                     75: #ifndef SAFE_FREE2
                     76: #define SAFE_FREE2(a, s) do { \
                     77:        if ((a) != NULL) { \
                     78:                memset((a), 0, (s)); \
                     79:                free((a)); \
                     80:                (a) = NULL; \
                     81:        } \
                     82: } while (/*CONSTCOND*/0)
                     83: #endif
                     84:
                     85: #ifndef SAFE_FREE
1.2     ! joerg      86: #define SAFE_FREE(a) SAFE_FREE2((a), sizeof(*(a)))
1.1       christos   87: #endif
                     88:
                     89: typedef struct dst_func {
                     90:        int (*sign)(const int mode, DST_KEY *key, void **context,
                     91:                     const u_int8_t *data, const int len,
                     92:                     u_int8_t *signature, const int sig_len);
                     93:        int (*verify)(const int mode, DST_KEY *key, void **context,
                     94:                       const u_int8_t *data, const int len,
                     95:                       const u_int8_t *signature, const int sig_len);
                     96:        int (*compare)(const DST_KEY *key1, const DST_KEY *key2);
                     97:        int (*generate)(DST_KEY *key, int parms);
                     98:        void *(*destroy)(void *key);
                     99:        /* conversion functions */
                    100:        int (*to_dns_key)(const DST_KEY *key, u_int8_t *out,
                    101:                           const int out_len);
                    102:        int (*from_dns_key)(DST_KEY *key, const u_int8_t *str,
                    103:                             const int str_len);
                    104:        int (*to_file_fmt)(const DST_KEY *key, char *out,
                    105:                            const int out_len);
                    106:        int (*from_file_fmt)(DST_KEY *key, const char *out,
                    107:                              const int out_len);
                    108:
                    109: } dst_func;
                    110:
                    111: extern dst_func *dst_t_func[DST_MAX_ALGS];
                    112: extern const char *key_file_fmt_str;
                    113: extern const char *dst_path;
                    114:
                    115: #ifndef DST_HASH_SIZE
                    116: #define DST_HASH_SIZE 20       /*%< RIPEMD160 and SHA-1 are 20 bytes MD5 is 16 */
                    117: #endif
                    118:
                    119: int dst_bsafe_init(void);
                    120:
                    121: int dst_rsaref_init(void);
                    122:
                    123: int dst_hmac_md5_init(void);
                    124:
                    125: int dst_cylink_init(void);
                    126:
                    127: int dst_eay_dss_init(void);
                    128:
                    129: /* from higher level support routines */
                    130: int       dst_s_calculate_bits( const u_int8_t *str, const int max_bits);
                    131: int       dst_s_verify_str( const char **buf, const char *str);
                    132:
                    133:
                    134: /* conversion between dns names and key file names */
                    135: size_t    dst_s_filename_length( const char *name, const char *suffix);
                    136: int       dst_s_build_filename(  char *filename, const char *name,
                    137:                                 u_int16_t id, int alg, const char *suffix,
                    138:                                 size_t filename_length);
                    139:
                    140: FILE      *dst_s_fopen (const char *filename, const char *mode, int perm);
                    141:
                    142: /*%
                    143:  * read and write network byte order into u_int?_t
                    144:  *  all of these should be retired
                    145:  */
                    146: u_int16_t dst_s_get_int16( const u_int8_t *buf);
                    147: void      dst_s_put_int16( u_int8_t *buf, const u_int16_t val);
                    148:
                    149: u_int32_t dst_s_get_int32( const u_int8_t *buf);
                    150: void      dst_s_put_int32( u_int8_t *buf, const u_int32_t val);
                    151:
                    152: #ifdef DUMP
                    153: # undef DUMP
                    154: # define DUMP(a,b,c,d) dst_s_dump(a,b,c,d)
                    155: #else
                    156: # define DUMP(a,b,c,d)
                    157: #endif
                    158: void
                    159: dst_s_dump(const int mode, const u_char *data, const int size,
                    160:             const char *msg);
                    161:
                    162: #define  KEY_FILE_FMT_STR "Private-key-format: v%s\nAlgorithm: %d (%s)\n"
                    163:
                    164:
                    165: #endif /* DST_INTERNAL_H */
                    166: /*! \file */

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