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add bounds checking

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7262 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2008-01-17 06:07:17 +00:00
parent 7cc21a90bd
commit 80d137165d
1 changed files with 6 additions and 7 deletions
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13
src/switch_rtp.c
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@ -491,20 +491,22 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
unsigned char *key, unsigned char *key,
switch_size_t keylen) switch_size_t keylen)
{ {
switch_rtp_crypto_key_t *crypto_key; switch_rtp_crypto_key_t *crypto_key;
srtp_policy_t *policy; srtp_policy_t *policy;
err_status_t stat; err_status_t stat;
switch_status_t status = SWITCH_STATUS_SUCCESS; switch_status_t status = SWITCH_STATUS_SUCCESS;
if (direction >= SWITCH_RTP_CRYPTO_MAX || keylen > SWITCH_RTP_MAX_CRYPTO_LEN) {
return SWITCH_STATUS_FALSE;
}
crypto_key = switch_core_alloc(rtp_session->pool, sizeof(*crypto_key)); crypto_key = switch_core_alloc(rtp_session->pool, sizeof(*crypto_key));
if (direction == SWITCH_RTP_CRYPTO_RECV) { if (direction == SWITCH_RTP_CRYPTO_RECV) {
policy = &rtp_session->recv_policy; policy = &rtp_session->recv_policy;
} else { } else {
policy = &rtp_session->send_policy; policy = &rtp_session->send_policy;
} }
crypto_key->type = type; crypto_key->type = type;
crypto_key->index = index; crypto_key->index = index;
@ -512,9 +514,7 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
crypto_key->next = rtp_session->crypto_keys[direction]; crypto_key->next = rtp_session->crypto_keys[direction];
rtp_session->crypto_keys[direction] = crypto_key; rtp_session->crypto_keys[direction] = crypto_key;
memset(policy, 0, sizeof(*policy)); memset(policy, 0, sizeof(*policy));
switch(crypto_key->type) { switch(crypto_key->type) {
case AES_CM_128_HMAC_SHA1_80: case AES_CM_128_HMAC_SHA1_80:
@ -527,7 +527,6 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
break; break;
} }
policy->next = NULL; policy->next = NULL;
policy->key = (uint8_t *) crypto_key->key; policy->key = (uint8_t *) crypto_key->key;
crypto_policy_set_rtcp_default(&policy->rtcp); crypto_policy_set_rtcp_default(&policy->rtcp);
@ -581,9 +580,9 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
} }
return SWITCH_STATUS_SUCCESS; return SWITCH_STATUS_SUCCESS;
} }
SWITCH_DECLARE(switch_status_t) switch_rtp_create(switch_rtp_t **new_rtp_session, SWITCH_DECLARE(switch_status_t) switch_rtp_create(switch_rtp_t **new_rtp_session,
switch_payload_t payload, switch_payload_t payload,
uint32_t samples_per_interval, uint32_t samples_per_interval,