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Migrated sha1_prf to INIT/METHOD macros

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This commit is contained in:
Andreas Steffen
2011-09-28 08:01:38 +02:00
parent c741b3d18f
commit 6bdcd278a6
1 changed files with 26 additions and 32 deletions
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src/libstrongswan/plugins/sha1/sha1_prf.c
+26 -32
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@@ -59,10 +59,8 @@ struct private_sha1_prf_t {
*/
extern void SHA1Update(private_sha1_hasher_t* this, u_int8_t *data, u_int32_t len);
/**
* Implementation of prf_t.get_bytes.
*/
static void get_bytes(private_sha1_prf_t *this, chunk_t seed, u_int8_t *bytes)
METHOD(prf_t, get_bytes, void,
private_sha1_prf_t *this, chunk_t seed, u_int8_t *bytes)
{
u_int32_t *hash = (u_int32_t*)bytes;
@@ -75,35 +73,27 @@ static void get_bytes(private_sha1_prf_t *this, chunk_t seed, u_int8_t *bytes)
hash[4] = htonl(this->hasher->state[4]);
}
/**
* Implementation of prf_t.get_block_size.
*/
static size_t get_block_size(private_sha1_prf_t *this)
METHOD(prf_t, get_block_size, size_t,
private_sha1_prf_t *this)
{
return HASH_SIZE_SHA1;
}
/**
* Implementation of prf_t.allocate_bytes.
*/
static void allocate_bytes(private_sha1_prf_t *this, chunk_t seed, chunk_t *chunk)
METHOD(prf_t, allocate_bytes, void,
private_sha1_prf_t *this, chunk_t seed, chunk_t *chunk)
{
*chunk = chunk_alloc(HASH_SIZE_SHA1);
get_bytes(this, seed, chunk->ptr);
}
/**
* Implementation of prf_t.get_key_size.
*/
static size_t get_key_size(private_sha1_prf_t *this)
METHOD(prf_t, get_key_size, size_t,
private_sha1_prf_t *this)
{
return sizeof(this->hasher->state);
}
/**
* Implementation of prf_t.set_key.
*/
static void set_key(private_sha1_prf_t *this, chunk_t key)
METHOD(prf_t, set_key, void,
private_sha1_prf_t *this, chunk_t key)
{
int i, rounds;
u_int32_t *iv = (u_int32_t*)key.ptr;
@@ -116,10 +106,8 @@ static void set_key(private_sha1_prf_t *this, chunk_t key)
}
}
/**
* Implementation of prf_t.destroy.
*/
static void destroy(private_sha1_prf_t *this)
METHOD(prf_t, destroy, void,
private_sha1_prf_t *this)
{
this->hasher->public.hasher_interface.destroy(&this->hasher->public.hasher_interface);
free(this);
@@ -131,19 +119,25 @@ static void destroy(private_sha1_prf_t *this)
sha1_prf_t *sha1_prf_create(pseudo_random_function_t algo)
{
private_sha1_prf_t *this;
if (algo != PRF_KEYED_SHA1)
{
return NULL;
}
this = malloc_thing(private_sha1_prf_t);
this->public.prf_interface.get_bytes = (void (*) (prf_t *,chunk_t,u_int8_t*))get_bytes;
this->public.prf_interface.allocate_bytes = (void (*) (prf_t*,chunk_t,chunk_t*))allocate_bytes;
this->public.prf_interface.get_block_size = (size_t (*) (prf_t*))get_block_size;
this->public.prf_interface.get_key_size = (size_t (*) (prf_t*))get_key_size;
this->public.prf_interface.set_key = (void (*) (prf_t *,chunk_t))set_key;
this->public.prf_interface.destroy = (void (*) (prf_t *))destroy;
this->hasher = (private_sha1_hasher_t*)sha1_hasher_create(HASH_SHA1);
INIT(this,
.public = {
.prf_interface = {
.get_bytes = _get_bytes,
.allocate_bytes = _allocate_bytes,
.get_block_size = _get_block_size,
.get_key_size = _get_key_size,
.set_key = _set_key,
.destroy = _destroy,
},
},
.hasher = (private_sha1_hasher_t*)sha1_hasher_create(HASH_SHA1),
);
return &this->public;
}