diff options
Diffstat (limited to 'src/libstrongswan/crypto/prfs/prf.h')
| -rw-r--r-- | src/libstrongswan/crypto/prfs/prf.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/libstrongswan/crypto/prfs/prf.h b/src/libstrongswan/crypto/prfs/prf.h index ad15205d3..46e23b244 100644 --- a/src/libstrongswan/crypto/prfs/prf.h +++ b/src/libstrongswan/crypto/prfs/prf.h @@ -71,28 +71,33 @@ extern enum_name_t *pseudo_random_function_names; * Generic interface for pseudo-random-functions. */ struct prf_t { + /** * Generates pseudo random bytes and writes them in the buffer. * * @param seed a chunk containing the seed for the next bytes * @param buffer pointer where the generated bytes will be written + * @return TRUE if bytes generated successfully */ - void (*get_bytes) (prf_t *this, chunk_t seed, u_int8_t *buffer); + bool (*get_bytes)(prf_t *this, chunk_t seed, + u_int8_t *buffer) __attribute__((warn_unused_result)); /** * Generates pseudo random bytes and allocate space for them. * * @param seed a chunk containing the seed for the next bytes * @param chunk chunk which will hold generated bytes + * @return TRUE if bytes allocated and generated successfully */ - void (*allocate_bytes) (prf_t *this, chunk_t seed, chunk_t *chunk); + bool (*allocate_bytes)(prf_t *this, chunk_t seed, + chunk_t *chunk) __attribute__((warn_unused_result)); /** * Get the block size of this prf_t object. * * @return block size in bytes */ - size_t (*get_block_size) (prf_t *this); + size_t (*get_block_size)(prf_t *this); /** * Get the key size of this prf_t object. @@ -102,19 +107,21 @@ struct prf_t { * * @return key size in bytes */ - size_t (*get_key_size) (prf_t *this); + size_t (*get_key_size)(prf_t *this); /** * Set the key for this prf_t object. * * @param key key to set + * @return TRUE if key set successfully */ - void (*set_key) (prf_t *this, chunk_t key); + bool (*set_key)(prf_t *this, + chunk_t key) __attribute__((warn_unused_result)); /** * Destroys a prf object. */ - void (*destroy) (prf_t *this); + void (*destroy)(prf_t *this); }; #endif /** PRF_H_ @}*/ |