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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; 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; if (rmsk_len)
*rmsk_len = erp->cache->emsk_len; *rmsk_len = erp->cache->emsk_len;
return erp->rmsk;
} }
void erp_init(void) void erp_init(void)

2
src/erp.h
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@ -39,7 +39,7 @@ void erp_free(struct erp_state *erp);
bool erp_start(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); 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, void erp_cache_add(const char *id, const void *session_id, size_t session_len,
const void *emsk, size_t emsk_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); fils->auth(data, ptr - data + tlv_len, fils->user_data);
} }
static int fils_derive_key_data(struct fils_sm *fils, const void *rmsk, static int fils_derive_key_data(struct fils_sm *fils)
size_t rmsk_len)
{ {
const void *rmsk;
size_t rmsk_len;
struct ie_tlv_builder builder; struct ie_tlv_builder builder;
uint8_t key[FILS_NONCE_LEN * 2]; uint8_t key[FILS_NONCE_LEN * 2];
uint8_t key_data[64 + 48 + 16]; /* largest ICK, KEK, TK */ 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; bool sha384;
unsigned int ie_len; unsigned int ie_len;
rmsk = erp_get_rmsk(fils->erp, &rmsk_len);
/* /*
* IEEE 802.11ai - Section 12.12.2.5.3 * 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 *session = NULL;
const uint8_t *wrapped = NULL; const uint8_t *wrapped = NULL;
size_t wrapped_len = 0; size_t wrapped_len = 0;
void *rmsk;
size_t rmsk_len;
if (!hdr) { if (!hdr) {
l_debug("Auth frame header did not validate"); 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) if (erp_rx_packet(fils->erp, wrapped, wrapped_len) < 0)
goto auth_failed; goto auth_failed;
erp_get_rmsk(fils->erp, &rmsk, &rmsk_len); fils_derive_key_data(fils);
fils_derive_key_data(fils, rmsk, rmsk_len);
return; return;
auth_failed: auth_failed: