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- return value cleanup

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This commit is contained in:
Martin Willi
2005-11-28 20:29:47 +00:00
parent 3fe058703f
commit d048df5cab
85 changed files with 1086 additions and 2680 deletions
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Source/charon/transforms/signers/hmac_signer.c
+18 -56
View File
@@ -48,66 +48,42 @@ struct private_hmac_signer_t {
};
static status_t get_signature (private_hmac_signer_t *this, chunk_t data, u_int8_t *buffer)
static void get_signature (private_hmac_signer_t *this, chunk_t data, u_int8_t *buffer)
{
u_int8_t full_mac[this->hmac_prf->get_block_size(this->hmac_prf)];
status_t status;
status = this->hmac_prf->get_bytes(this->hmac_prf,data,full_mac);
if (status != SUCCESS)
{
return status;
}
this->hmac_prf->get_bytes(this->hmac_prf,data,full_mac);
/* copy mac aka signature :-) */
memcpy(buffer,full_mac,BLOCK_SIZE);
return SUCCESS;
}
static status_t allocate_signature (private_hmac_signer_t *this, chunk_t data, chunk_t *chunk)
static void allocate_signature (private_hmac_signer_t *this, chunk_t data, chunk_t *chunk)
{
chunk_t signature;
status_t status;
u_int8_t full_mac[this->hmac_prf->get_block_size(this->hmac_prf)];
status = this->hmac_prf->get_bytes(this->hmac_prf,data,full_mac);
if (status != SUCCESS)
{
return status;
}
this->hmac_prf->get_bytes(this->hmac_prf,data,full_mac);
signature.ptr = allocator_alloc(BLOCK_SIZE);
if (signature.ptr == NULL)
{
return OUT_OF_RES;
}
signature.len = BLOCK_SIZE;
/* copy mac aka signature :-) */
memcpy(signature.ptr,full_mac,BLOCK_SIZE);
*chunk = signature;
return SUCCESS;
}
static status_t verify_signature (private_hmac_signer_t *this, chunk_t data, chunk_t signature, bool *valid)
static void verify_signature (private_hmac_signer_t *this, chunk_t data, chunk_t signature, bool *valid)
{
status_t status;
u_int8_t full_mac[this->hmac_prf->get_block_size(this->hmac_prf)];
status = this->hmac_prf->get_bytes(this->hmac_prf,data,full_mac);
if (status != SUCCESS)
{
return status;
}
this->hmac_prf->get_bytes(this->hmac_prf,data,full_mac);
if (signature.len != BLOCK_SIZE)
{
/* signature must have BLOCK_SIZE length */
return INVALID_ARG;
*valid = FALSE;
return;
}
/* compare mac aka signature :-) */
@@ -119,8 +95,6 @@ static status_t verify_signature (private_hmac_signer_t *this, chunk_t data, chu
{
*valid = FALSE;
}
return SUCCESS;
}
static size_t get_block_size (private_hmac_signer_t *this)
@@ -128,9 +102,9 @@ static size_t get_block_size (private_hmac_signer_t *this)
return BLOCK_SIZE;
}
static status_t set_key (private_hmac_signer_t *this, chunk_t key)
static void set_key (private_hmac_signer_t *this, chunk_t key)
{
return (this->hmac_prf->set_key(this->hmac_prf,key));
this->hmac_prf->set_key(this->hmac_prf,key);
}
/**
@@ -150,35 +124,23 @@ static status_t destroy(private_hmac_signer_t *this)
hmac_signer_t *hmac_signer_create(hash_algorithm_t hash_algoritm)
{
private_hmac_signer_t *this = allocator_alloc_thing(private_hmac_signer_t);
if (this == NULL)
{
return NULL;
}
this->hmac_prf = (prf_t *) hmac_prf_create(hash_algoritm);
if (this->hmac_prf == NULL)
{
/* hmac prf could not be created !!! */
/* algorithm not supported */
allocator_free(this);
return NULL;
}
if (this->hmac_prf->get_block_size(this->hmac_prf) < BLOCK_SIZE)
{
/* hmac prf with given algorithm has to small block size */
allocator_free(this);
return NULL;
}
/* interface functions */
this->public.signer_interface.get_signature = (status_t (*) (signer_t*, chunk_t, u_int8_t*))get_signature;
this->public.signer_interface.allocate_signature = (status_t (*) (signer_t*, chunk_t, chunk_t*))allocate_signature;
this->public.signer_interface.verify_signature = (status_t (*) (signer_t*, chunk_t, chunk_t,bool *))verify_signature;
this->public.signer_interface.get_signature = (void (*) (signer_t*, chunk_t, u_int8_t*))get_signature;
this->public.signer_interface.allocate_signature = (void (*) (signer_t*, chunk_t, chunk_t*))allocate_signature;
this->public.signer_interface.verify_signature = (void (*) (signer_t*, chunk_t, chunk_t,bool *))verify_signature;
this->public.signer_interface.get_block_size = (size_t (*) (signer_t*))get_block_size;
this->public.signer_interface.set_key = (size_t (*) (signer_t*,chunk_t))set_key;
this->public.signer_interface.destroy = (status_t (*) (signer_t*))destroy;
this->public.signer_interface.set_key = (void (*) (signer_t*,chunk_t))set_key;
this->public.signer_interface.destroy = (void (*) (signer_t*))destroy;
return &(this->public);
}