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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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11
src/switch_rtp.c
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@ -491,12 +491,15 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
unsigned char *key,
switch_size_t keylen)
{
switch_rtp_crypto_key_t *crypto_key;
srtp_policy_t *policy;
err_status_t stat;
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));
if (direction == SWITCH_RTP_CRYPTO_RECV) {
@ -505,17 +508,14 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
policy = &rtp_session->send_policy;
}
crypto_key->type = type;
crypto_key->index = index;
memcpy(crypto_key->key, key, keylen);
crypto_key->next = rtp_session->crypto_keys[direction];
rtp_session->crypto_keys[direction] = crypto_key;
memset(policy, 0, sizeof(*policy));
switch(crypto_key->type) {
case AES_CM_128_HMAC_SHA1_80:
crypto_policy_set_aes_cm_128_hmac_sha1_80(&policy->rtp);
@ -527,7 +527,6 @@ SWITCH_DECLARE(switch_status_t) switch_rtp_add_crypto_key(switch_rtp_t *rtp_sess
break;
}
policy->next = NULL;
policy->key = (uint8_t *) crypto_key->key;
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;
}
SWITCH_DECLARE(switch_status_t) switch_rtp_create(switch_rtp_t **new_rtp_session,
switch_payload_t payload,
uint32_t samples_per_interval,