diff options
Diffstat (limited to 'lib/crypto-backend.c')
| -rw-r--r-- | lib/crypto-backend.c | 319 |
1 files changed, 148 insertions, 171 deletions
diff --git a/lib/crypto-backend.c b/lib/crypto-backend.c index ebc67a9f2a..8840b1c123 100644 --- a/lib/crypto-backend.c +++ b/lib/crypto-backend.c @@ -35,12 +35,11 @@ int crypto_mac_prio = INT_MAX; int crypto_digest_prio = INT_MAX; int crypto_cipher_prio = INT_MAX; -typedef struct algo_list -{ - int algorithm; - int priority; - const void *alg_data; - struct algo_list *next; +typedef struct algo_list { + int algorithm; + int priority; + const void *alg_data; + struct algo_list *next; } algo_list; #define cipher_list algo_list @@ -48,104 +47,92 @@ typedef struct algo_list #define digest_list algo_list static int -_algo_register (algo_list * al, int algorithm, int priority, const void *s) +_algo_register(algo_list * al, int algorithm, int priority, const void *s) { - algo_list *cl; - algo_list *last_cl = al; - - if (al == NULL) - return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST); - - /* look if there is any cipher with lowest priority. In that case do not add. - */ - cl = al; - while (cl && cl->alg_data) - { - if (cl->algorithm == algorithm) - { - if (cl->priority < priority) - { - gnutls_assert (); - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; - } - else - { - /* the current has higher priority -> overwrite */ - cl->algorithm = algorithm; - cl->priority = priority; - cl->alg_data = s; - return 0; - } - } - cl = cl->next; - if (cl) - last_cl = cl; - } - - cl = gnutls_calloc (1, sizeof (cipher_list)); - - if (cl == NULL) - { - gnutls_assert (); - return GNUTLS_E_MEMORY_ERROR; - } - - last_cl->algorithm = algorithm; - last_cl->priority = priority; - last_cl->alg_data = s; - last_cl->next = cl; - - return 0; + algo_list *cl; + algo_list *last_cl = al; + + if (al == NULL) + return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST); + + /* look if there is any cipher with lowest priority. In that case do not add. + */ + cl = al; + while (cl && cl->alg_data) { + if (cl->algorithm == algorithm) { + if (cl->priority < priority) { + gnutls_assert(); + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + } else { + /* the current has higher priority -> overwrite */ + cl->algorithm = algorithm; + cl->priority = priority; + cl->alg_data = s; + return 0; + } + } + cl = cl->next; + if (cl) + last_cl = cl; + } + + cl = gnutls_calloc(1, sizeof(cipher_list)); + + if (cl == NULL) { + gnutls_assert(); + return GNUTLS_E_MEMORY_ERROR; + } + + last_cl->algorithm = algorithm; + last_cl->priority = priority; + last_cl->alg_data = s; + last_cl->next = cl; + + return 0; } -static const void * -_get_algo (algo_list * al, int algo) +static const void *_get_algo(algo_list * al, int algo) { - cipher_list *cl; - - /* look if there is any cipher with lowest priority. In that case do not add. - */ - cl = al; - while (cl && cl->alg_data) - { - if (cl->algorithm == algo) - { - return cl->alg_data; - } - cl = cl->next; - } - - return NULL; + cipher_list *cl; + + /* look if there is any cipher with lowest priority. In that case do not add. + */ + cl = al; + while (cl && cl->alg_data) { + if (cl->algorithm == algo) { + return cl->alg_data; + } + cl = cl->next; + } + + return NULL; } static cipher_list glob_cl = { GNUTLS_CIPHER_NULL, 0, NULL, NULL }; static mac_list glob_ml = { GNUTLS_MAC_NULL, 0, NULL, NULL }; static digest_list glob_dl = { GNUTLS_MAC_NULL, 0, NULL, NULL }; -static void -_deregister (algo_list * cl) +static void _deregister(algo_list * cl) { - algo_list *next; - - next = cl->next; - cl->next = NULL; - cl = next; - - while (cl) - { - next = cl->next; - gnutls_free (cl); - cl = next; - } + algo_list *next; + + next = cl->next; + cl->next = NULL; + cl = next; + + while (cl) { + next = cl->next; + gnutls_free(cl); + cl = next; + } } -void -_gnutls_crypto_deregister (void) +void _gnutls_crypto_deregister(void) { - _deregister (&glob_cl); - _deregister (&glob_ml); - _deregister (&glob_dl); + _deregister(&glob_cl); + _deregister(&glob_ml); + _deregister(&glob_dl); } /*- @@ -170,17 +157,17 @@ _gnutls_crypto_deregister (void) * Since: 2.6.0 -*/ int -gnutls_crypto_single_cipher_register (gnutls_cipher_algorithm_t algorithm, - int priority, - const gnutls_crypto_cipher_st * s) +gnutls_crypto_single_cipher_register(gnutls_cipher_algorithm_t algorithm, + int priority, + const gnutls_crypto_cipher_st * s) { - return _algo_register (&glob_cl, algorithm, priority, s); + return _algo_register(&glob_cl, algorithm, priority, s); } -const gnutls_crypto_cipher_st * -_gnutls_get_crypto_cipher (gnutls_cipher_algorithm_t algo) +const gnutls_crypto_cipher_st + *_gnutls_get_crypto_cipher(gnutls_cipher_algorithm_t algo) { - return _get_algo (&glob_cl, algo); + return _get_algo(&glob_cl, algo); } /*- @@ -204,17 +191,15 @@ _gnutls_get_crypto_cipher (gnutls_cipher_algorithm_t algo) * Since: 2.6.0 -*/ int -gnutls_crypto_rnd_register (int priority, - const gnutls_crypto_rnd_st * s) +gnutls_crypto_rnd_register(int priority, const gnutls_crypto_rnd_st * s) { - if (crypto_rnd_prio > priority) - { - memcpy (&_gnutls_rnd_ops, s, sizeof (*s)); - crypto_rnd_prio = priority; - return 0; - } - - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + if (crypto_rnd_prio > priority) { + memcpy(&_gnutls_rnd_ops, s, sizeof(*s)); + crypto_rnd_prio = priority; + return 0; + } + + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; } /*- @@ -239,17 +224,17 @@ gnutls_crypto_rnd_register (int priority, * Since: 2.6.0 -*/ int -gnutls_crypto_single_mac_register (gnutls_mac_algorithm_t algorithm, - int priority, - const gnutls_crypto_mac_st * s) +gnutls_crypto_single_mac_register(gnutls_mac_algorithm_t algorithm, + int priority, + const gnutls_crypto_mac_st * s) { - return _algo_register (&glob_ml, algorithm, priority, s); + return _algo_register(&glob_ml, algorithm, priority, s); } -const gnutls_crypto_mac_st * -_gnutls_get_crypto_mac (gnutls_mac_algorithm_t algo) +const gnutls_crypto_mac_st *_gnutls_get_crypto_mac(gnutls_mac_algorithm_t + algo) { - return _get_algo (&glob_ml, algo); + return _get_algo(&glob_ml, algo); } /*- @@ -274,17 +259,17 @@ _gnutls_get_crypto_mac (gnutls_mac_algorithm_t algo) * Since: 2.6.0 -*/ int -gnutls_crypto_single_digest_register (gnutls_digest_algorithm_t algorithm, - int priority, - const gnutls_crypto_digest_st * s) +gnutls_crypto_single_digest_register(gnutls_digest_algorithm_t algorithm, + int priority, + const gnutls_crypto_digest_st * s) { - return _algo_register (&glob_dl, algorithm, priority, s); + return _algo_register(&glob_dl, algorithm, priority, s); } -const gnutls_crypto_digest_st * -_gnutls_get_crypto_digest (gnutls_digest_algorithm_t algo) +const gnutls_crypto_digest_st + *_gnutls_get_crypto_digest(gnutls_digest_algorithm_t algo) { - return _get_algo (&glob_dl, algo); + return _get_algo(&glob_dl, algo); } /*- @@ -311,17 +296,16 @@ _gnutls_get_crypto_digest (gnutls_digest_algorithm_t algo) * Since: 2.6.0 -*/ int -gnutls_crypto_bigint_register (int priority, - const gnutls_crypto_bigint_st * s) +gnutls_crypto_bigint_register(int priority, + const gnutls_crypto_bigint_st * s) { - if (crypto_bigint_prio > priority) - { - memcpy (&_gnutls_mpi_ops, s, sizeof (*s)); - crypto_bigint_prio = priority; - return 0; - } - - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + if (crypto_bigint_prio > priority) { + memcpy(&_gnutls_mpi_ops, s, sizeof(*s)); + crypto_bigint_prio = priority; + return 0; + } + + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; } /*- @@ -347,18 +331,15 @@ gnutls_crypto_bigint_register (int priority, * * Since: 2.6.0 -*/ -int -gnutls_crypto_pk_register (int priority, - const gnutls_crypto_pk_st * s) +int gnutls_crypto_pk_register(int priority, const gnutls_crypto_pk_st * s) { - if (crypto_pk_prio > priority) - { - memcpy (&_gnutls_pk_ops, s, sizeof (*s)); - crypto_pk_prio = priority; - return 0; - } - - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + if (crypto_pk_prio > priority) { + memcpy(&_gnutls_pk_ops, s, sizeof(*s)); + crypto_pk_prio = priority; + return 0; + } + + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; } /*- @@ -382,17 +363,16 @@ gnutls_crypto_pk_register (int priority, * Since: 2.6.0 -*/ int -gnutls_crypto_cipher_register (int priority, - const gnutls_crypto_cipher_st * s) +gnutls_crypto_cipher_register(int priority, + const gnutls_crypto_cipher_st * s) { - if (crypto_cipher_prio > priority) - { - memcpy (&_gnutls_cipher_ops, s, sizeof (*s)); - crypto_cipher_prio = priority; - return 0; - } - - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + if (crypto_cipher_prio > priority) { + memcpy(&_gnutls_cipher_ops, s, sizeof(*s)); + crypto_cipher_prio = priority; + return 0; + } + + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; } /*- @@ -416,17 +396,15 @@ gnutls_crypto_cipher_register (int priority, * Since: 2.6.0 -*/ int -gnutls_crypto_mac_register (int priority, - const gnutls_crypto_mac_st * s) +gnutls_crypto_mac_register(int priority, const gnutls_crypto_mac_st * s) { - if (crypto_mac_prio > priority) - { - memcpy (&_gnutls_mac_ops, s, sizeof (*s)); - crypto_mac_prio = priority; - return 0; - } - - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + if (crypto_mac_prio > priority) { + memcpy(&_gnutls_mac_ops, s, sizeof(*s)); + crypto_mac_prio = priority; + return 0; + } + + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; } /*- @@ -450,15 +428,14 @@ gnutls_crypto_mac_register (int priority, * Since: 2.6.0 -*/ int -gnutls_crypto_digest_register (int priority, - const gnutls_crypto_digest_st * s) +gnutls_crypto_digest_register(int priority, + const gnutls_crypto_digest_st * s) { - if (crypto_digest_prio > priority) - { - memcpy (&_gnutls_digest_ops, s, sizeof (*s)); - crypto_digest_prio = priority; - return 0; - } - - return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; + if (crypto_digest_prio > priority) { + memcpy(&_gnutls_digest_ops, s, sizeof(*s)); + crypto_digest_prio = priority; + return 0; + } + + return GNUTLS_E_CRYPTO_ALREADY_REGISTERED; } |