src/crypto/rfc3961/krb5_locl.h

   1 /* This is a shim header that's included by crypto.c, and turns it into
   2  * something that we can actually build on its own.
   3  */
   4
   5 #ifdef KERNEL
   6
   7 #include "config.h"
   8
   9 #else
  10
  11 #include <roken.h>
  12
  13 #include <fcntl.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16 #include <sys/param.h>
  17 #include <inttypes.h>
  18 #include <sys/types.h>
  19 #include <sys/errno.h>
  20 #include <pthread.h>
  21
  22 #endif
  23
  24 #include <hcrypto/evp.h>
  25 #include <hcrypto/sha.h>
  26
  27 #include "rfc3961.h"
  28
  29 #ifndef KERNEL
  30 # define HEIMDAL_MUTEX pthread_mutex_t
  31 # define HEIMDAL_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
  32 # define HEIMDAL_MUTEX_init(m) pthread_mutex_init(m, NULL)
  33 # define HEIMDAL_MUTEX_lock(m) pthread_mutex_lock(m)
  34 # define HEIMDAL_MUTEX_unlock(m) pthread_mutex_unlock(m)
  35 # define HEIMDAL_MUTEX_destroy(m) pthread_mutex_destroy(m)
  36 #endif
  37
  38 #define HEIMDAL_SMALLER 1
  39 #define HEIM_CRYPTO_NO_TRIPLE_DES
  40 #define HEIM_CRYPTO_NO_ARCFOUR
  41 #define HEIM_CRYPTO_NO_PK
  42
  43 #define ALLOC(X, N) (X) = calloc((N), sizeof(*(X)))
  44
  45 #ifndef max
  46 #define max(a,b) (((a)>(b))?(a):(b))
  47 #endif
  48
  49 #ifndef O_BINARY
  50 #define O_BINARY 0
  51 #endif
  52
  53 #ifndef O_CLOEXEC
  54 #define O_CLOEXEC 0
  55 #endif
  56
  57 typedef int krb5_boolean;
  58 typedef ssize_t krb5_ssize_t;
  59
  60 #define KRB5_KU_AS_REP_ENC_PART 3
  61 #define KRB5_KU_USAGE_SEAL 22
  62 #define KRB5_KU_USAGE_SIGN 23
  63 #define KRB5_KU_USAGE_SEQ 24
  64
  65 #define TRUE 1
  66 #define FALSE 0
  67
  68 /* From the ASN.1 */
  69
  70 typedef struct EncryptedData {
  71   int etype;
  72   int *kvno;
  73   heim_octet_string cipher;
  74 } EncryptedData;
  75
  76 typedef enum krb5_salttype {
  77     KRB5_PW_SALT = 3,
  78     KRB5_AFS3_SALT = 10
  79 } krb5_salttype;
  80
  81 typedef enum krb5_keytype {
  82     KEYTYPE_NULL        = 0,
  83     KEYTYPE_DES         = 1,
  84     KEYTYPE_DES3        = 7,
  85     KEYTYPE_AES128      = 17,
  86     KEYTYPE_AES256      = 18,
  87     KEYTYPE_ARCFOUR     = 23,
  88     KEYTYPE_ARCFOUR_56  = 24
  89 } krb5_keytype;
  90
  91 #define KRB5_ENCTYPE_NULL KEYTYPE_NULL
  92 #define KRB5_ENCTYPE_OLD_DES3_CBC_SHA1 KEYTYPE_DES3
  93 #define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96 KEYTYPE_AES128
  94 #define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96 KEYTYPE_AES256
  95
  96 typedef struct krb5_salt {
  97     krb5_salttype salttype;
  98     krb5_data saltvalue;
  99 } krb5_salt;
 100
 101 typedef struct krb5_crypto_iov {
 102     unsigned int flags;
 103     /* ignored */
 104 #define KRB5_CRYPTO_TYPE_EMPTY          0
 105     /* OUT krb5_crypto_length(KRB5_CRYPTO_TYPE_HEADER) */
 106 #define KRB5_CRYPTO_TYPE_HEADER         1
 107     /* IN and OUT */
 108 #define KRB5_CRYPTO_TYPE_DATA           2
 109     /* IN */
 110 #define KRB5_CRYPTO_TYPE_SIGN_ONLY      3
 111    /* (only for encryption) OUT krb5_crypto_length(KRB5_CRYPTO_TYPE_TRAILER) */
 112 #define KRB5_CRYPTO_TYPE_PADDING        4
 113    /* OUT krb5_crypto_length(KRB5_CRYPTO_TYPE_TRAILER) */
 114 #define KRB5_CRYPTO_TYPE_TRAILER        5
 115    /* OUT krb5_crypto_length(KRB5_CRYPTO_TYPE_CHECKSUM) */
 116 #define KRB5_CRYPTO_TYPE_CHECKSUM       6
 117     krb5_data data;
 118 } krb5_crypto_iov;
 119
 120 #define ETYPE_NULL 0
 121
 122 #define KRB5_LIB_FUNCTION
 123 #define KRB5_LIB_CALL
 124
 125 /* Error codes */
 126 #define KRB5_BAD_MSIZE -1765328194
 127 #define KRB5_BAD_KEYSIZE -1765328195
 128 #define KRB5_PROG_SUMTYPE_NOSUPP -1765328231
 129 #define KRB5_PROG_KEYTYPE_NOSUPP -1765328233
 130 #define KRB5_PROG_ETYPE_NOSUPP -1765328234
 131 #define HEIM_ERR_SALTTYPE_NOSUPP -1980176638
 132 #define KRB5KRB_AP_ERR_BAD_INTEGRITY -1765328353
 133
 134 #define KRB5_CRYPTO_INTERNAL 1
 135
 136 /* Currently, we just disable localised error strings. We'll get the error
 137  * numbers out, but no meaningful text */
 138 #define N_(X, Y) X
 139
 140 /* These have to be real functions, because IRIX doesn't seem to support
 141  * variadic macros */
 142 void krb5_set_error_message(krb5_context, krb5_error_code, const char *, ...);
 143 krb5_error_code krb5_abortx(krb5_context, const char *, ...);
 144
 145 #define krb5_clear_error_message(ctx)
 146
 147 static_inline krb5_error_code
 148 krb5_enomem(krb5_context context)
 149 {
 150     return ENOMEM;
 151 }
 152
 153
 154 /* Local prototypes. These are functions that we aren't admitting to in the
 155  * public API */
 156 krb5_error_code _krb5_n_fold(const void *str, size_t len, void *, size_t);
 157 krb5_error_code krb5_derive_key(krb5_context context, const krb5_keyblock *key,
 158                                 krb5_enctype etype, const void *constant,
 159                                 size_t constant_len,
 160                                 krb5_keyblock **derived_key);
 161 krb5_error_code krb5_enctype_keysize(krb5_context context,
 162                                      krb5_enctype type,
 163                                      size_t *keysize);
 164 krb5_ssize_t _krb5_put_int(void *buffer, unsigned long value, size_t size);
 165 void krb5_data_zero(krb5_data *p);
 166 krb5_error_code krb5_data_copy(krb5_data *p, const void *data, size_t len);
 167 void krb5_free_data(krb5_context context, krb5_data *p);
 168 krb5_error_code krb5_copy_keyblock(krb5_context,
 169                                    const krb5_keyblock *,
 170                                    krb5_keyblock **);
 171 void krb5_free_keyblock(krb5_context, krb5_keyblock *);
 172 int krb5_data_ct_cmp(const krb5_data *, const krb5_data *);
 173 int der_copy_octet_string(const krb5_data *, krb5_data *);
 174 int copy_EncryptionKey(const krb5_keyblock *, krb5_keyblock *);
 175 int ct_memcmp(const void *p1, const void *p2, size_t len);
 176 krb5_error_code krb5_enctype_to_string(krb5_context context,
 177                                        krb5_enctype etype,
 178                                        char **string);
 179
 180
 181 #include "crypto.h"
 182
 183 struct _krb5_checksum_type * _krb5_find_checksum (krb5_cksumtype);
 184 struct _krb5_encryption_type * _krb5_find_enctype (krb5_enctype);
 185 void _krb5_free_key_data (krb5_context, struct _krb5_key_data *,
 186                           struct _krb5_encryption_type *);
 187 void _krb5_evp_cleanup (krb5_context, struct _krb5_key_data *);
 188
 189 krb5_error_code _krb5_evp_encrypt (krb5_context, struct _krb5_key_data *,
 190                                    void *, size_t, krb5_boolean, int,
 191                                    void *);
 192 krb5_error_code _krb5_evp_encrypt_cts (krb5_context, struct _krb5_key_data *,
 193                                        void *,size_t, krb5_boolean,
 194                                        int, void *);
 195 void _krb5_evp_schedule (krb5_context, struct _krb5_key_type *,
 196                          struct _krb5_key_data *);
 197 krb5_error_code _krb5_SP_HMAC_SHA1_checksum (krb5_context,
 198                                              struct _krb5_key_data *,
 199                                              const void *,
 200                                              size_t, unsigned, Checksum *);
 201
 202 /* These are bodges - we don't implement these encryption types, but
 203  * crypto.c contains hard coded references to them, and to these funcs.
 204  *
 205  * They will never actually be called ...
 206  */
 207 static_inline krb5_error_code
 208 _krb5_usage2arcfour(krb5_context context, unsigned *usage) {
 209    return -1;
 210 }
 211
 212 static_inline void
 213 _krb5_DES3_random_to_key (krb5_context context,
 214                           krb5_keyblock *key,
 215                           const void *rand,
 216                           size_t size) {
 217    return;
 218 }
 219
 220 #define _krb5_AES_salt NULL