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erp: Return const void * instead

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This commit is contained in:
Denis Kenzior 2019-05-03 14:17:17 -05:00
parent 8c11fdabcc
commit f0de2516ea
3 changed files with 12 additions and 12 deletions
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8
src/erp.c
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@ -512,10 +512,12 @@ eap_failed:
return -EINVAL;
}
void erp_get_rmsk(struct erp_state *erp, void **rmsk, size_t *rmsk_len)
const void *erp_get_rmsk(struct erp_state *erp, size_t *rmsk_len)
{
*rmsk = erp->rmsk;
*rmsk_len = erp->cache->emsk_len;
if (rmsk_len)
*rmsk_len = erp->cache->emsk_len;
return erp->rmsk;
}
void erp_init(void)

2
src/erp.h
View File

@ -39,7 +39,7 @@ void erp_free(struct erp_state *erp);
bool erp_start(struct erp_state *erp);
int erp_rx_packet(struct erp_state *erp, const uint8_t *erp_data, size_t len);
void erp_get_rmsk(struct erp_state *erp, void **rmsk, size_t *rmsk_len);
const void *erp_get_rmsk(struct erp_state *erp, size_t *rmsk_len);
void erp_cache_add(const char *id, const void *session_id, size_t session_len,
const void *emsk, size_t emsk_len,

14
src/fils.c
View File

@ -119,9 +119,10 @@ static void fils_erp_tx_func(const uint8_t *eap_data, size_t len,
fils->auth(data, ptr - data + tlv_len, fils->user_data);
}
static int fils_derive_key_data(struct fils_sm *fils, const void *rmsk,
size_t rmsk_len)
static int fils_derive_key_data(struct fils_sm *fils)
{
const void *rmsk;
size_t rmsk_len;
struct ie_tlv_builder builder;
uint8_t key[FILS_NONCE_LEN * 2];
uint8_t key_data[64 + 48 + 16]; /* largest ICK, KEK, TK */
@ -133,6 +134,8 @@ static int fils_derive_key_data(struct fils_sm *fils, const void *rmsk,
bool sha384;
unsigned int ie_len;
rmsk = erp_get_rmsk(fils->erp, &rmsk_len);
/*
* IEEE 802.11ai - Section 12.12.2.5.3
*/
@ -289,8 +292,6 @@ void fils_rx_authenticate(struct fils_sm *fils, const uint8_t *frame,
const uint8_t *session = NULL;
const uint8_t *wrapped = NULL;
size_t wrapped_len = 0;
void *rmsk;
size_t rmsk_len;
if (!hdr) {
l_debug("Auth frame header did not validate");
@ -353,10 +354,7 @@ void fils_rx_authenticate(struct fils_sm *fils, const uint8_t *frame,
if (erp_rx_packet(fils->erp, wrapped, wrapped_len) < 0)
goto auth_failed;
erp_get_rmsk(fils->erp, &rmsk, &rmsk_len);
fils_derive_key_data(fils, rmsk, rmsk_len);
fils_derive_key_data(fils);
return;
auth_failed: