diff options
Diffstat (limited to 'pjlib/src/pj/stun.c')
-rw-r--r-- | pjlib/src/pj/stun.c | 236 |
1 files changed, 118 insertions, 118 deletions
diff --git a/pjlib/src/pj/stun.c b/pjlib/src/pj/stun.c index efd43560..670ceefc 100644 --- a/pjlib/src/pj/stun.c +++ b/pjlib/src/pj/stun.c @@ -1,118 +1,118 @@ -/* $Header: /pjproject-0.3/pjlib/src/pj/stun.c 6 9/17/05 10:37a Bennylp $ */
-/* $Log: /pjproject-0.3/pjlib/src/pj/stun.c $
- *
- * 6 9/17/05 10:37a Bennylp
- * Major reorganization towards version 0.3.
- *
- */
-#include <pj/stun.h>
-#include <pj/pool.h>
-#include <pj/log.h>
-#include <pj/sock.h>
-#include <pj/os.h>
-
-#define THIS_FILE "stun"
-
-PJ_DEF(pj_status_t) pj_stun_create_bind_req( pj_pool_t *pool,
- void **msg, pj_size_t *len,
- pj_uint32_t id_hi,
- pj_uint32_t id_lo)
-{
- pj_stun_msg_hdr *hdr;
-
- PJ_CHECK_STACK();
-
- PJ_LOG(5,(THIS_FILE, "pj_stun_create_bind_req"));
-
- hdr = pj_pool_calloc(pool, 1, sizeof(pj_stun_msg_hdr));
- if (!hdr) {
- PJ_LOG(5,(THIS_FILE, "Error allocating memory!"));
- return -1;
- }
-
- hdr->type = pj_htons(PJ_STUN_BINDING_REQUEST);
- hdr->tsx[2] = pj_htonl(id_hi);
- hdr->tsx[3] = pj_htonl(id_lo);
- *msg = hdr;
- *len = sizeof(pj_stun_msg_hdr);
-
- return 0;
-}
-
-PJ_DEF(pj_status_t) pj_stun_parse_msg( void *buf, pj_size_t len,
- pj_stun_msg *msg)
-{
- pj_uint16_t msg_type, msg_len;
- char *p_attr;
-
- PJ_CHECK_STACK();
-
- PJ_LOG(5,(THIS_FILE, "pj_stun_parse_msg %p, len=%d", buf, len));
-
- msg->hdr = (pj_stun_msg_hdr*)buf;
- msg_type = pj_ntohs(msg->hdr->type);
-
- switch (msg_type) {
- case PJ_STUN_BINDING_REQUEST:
- case PJ_STUN_BINDING_RESPONSE:
- case PJ_STUN_BINDING_ERROR_RESPONSE:
- case PJ_STUN_SHARED_SECRET_REQUEST:
- case PJ_STUN_SHARED_SECRET_RESPONSE:
- case PJ_STUN_SHARED_SECRET_ERROR_RESPONSE:
- break;
- default:
- PJ_LOG(5,(THIS_FILE, "Error: unknown msg type %d", msg_type));
- return -1;
- }
-
- msg_len = pj_ntohs(msg->hdr->length);
- if (msg_len != len - sizeof(pj_stun_msg_hdr)) {
- PJ_LOG(5,(THIS_FILE, "Error: invalid msg_len %d (expecting %d)",
- msg_len, len - sizeof(pj_stun_msg_hdr)));
- return -1;
- }
-
- msg->attr_count = 0;
- p_attr = (char*)buf + sizeof(pj_stun_msg_hdr);
-
- while (msg_len > 0) {
- pj_stun_attr_hdr **attr = &msg->attr[msg->attr_count];
- pj_uint32_t len;
-
- *attr = (pj_stun_attr_hdr*)p_attr;
- len = pj_ntohs((pj_uint16_t) ((*attr)->length)) + sizeof(pj_stun_attr_hdr);
-
- if (msg_len < len) {
- PJ_LOG(5,(THIS_FILE, "Error: length mismatch in attr %d",
- msg->attr_count));
- return -1;
- }
-
- if (pj_ntohs((*attr)->type) > PJ_STUN_ATTR_REFLECTED_FORM) {
- PJ_LOG(5,(THIS_FILE, "Error: invalid attr type %d in attr %d",
- pj_ntohs((*attr)->type), msg->attr_count));
- return -1;
- }
-
- msg_len = (pj_uint16_t)(msg_len - len);
- p_attr += len;
- ++msg->attr_count;
- }
-
- return 0;
-}
-
-PJ_DEF(void*) pj_stun_msg_find_attr( pj_stun_msg *msg, pj_stun_attr_type t)
-{
- int i;
-
- PJ_CHECK_STACK();
-
- for (i=0; i<msg->attr_count; ++i) {
- pj_stun_attr_hdr *attr = msg->attr[i];
- if (pj_ntohs(attr->type) == t)
- return attr;
- }
-
- return 0;
-}
+/* $Header: /pjproject-0.3/pjlib/src/pj/stun.c 6 9/17/05 10:37a Bennylp $ */ +/* $Log: /pjproject-0.3/pjlib/src/pj/stun.c $ + * + * 6 9/17/05 10:37a Bennylp + * Major reorganization towards version 0.3. + * + */ +#include <pj/stun.h> +#include <pj/pool.h> +#include <pj/log.h> +#include <pj/sock.h> +#include <pj/os.h> + +#define THIS_FILE "stun" + +PJ_DEF(pj_status_t) pj_stun_create_bind_req( pj_pool_t *pool, + void **msg, pj_size_t *len, + pj_uint32_t id_hi, + pj_uint32_t id_lo) +{ + pj_stun_msg_hdr *hdr; + + PJ_CHECK_STACK(); + + PJ_LOG(5,(THIS_FILE, "pj_stun_create_bind_req")); + + hdr = pj_pool_calloc(pool, 1, sizeof(pj_stun_msg_hdr)); + if (!hdr) { + PJ_LOG(5,(THIS_FILE, "Error allocating memory!")); + return -1; + } + + hdr->type = pj_htons(PJ_STUN_BINDING_REQUEST); + hdr->tsx[2] = pj_htonl(id_hi); + hdr->tsx[3] = pj_htonl(id_lo); + *msg = hdr; + *len = sizeof(pj_stun_msg_hdr); + + return 0; +} + +PJ_DEF(pj_status_t) pj_stun_parse_msg( void *buf, pj_size_t len, + pj_stun_msg *msg) +{ + pj_uint16_t msg_type, msg_len; + char *p_attr; + + PJ_CHECK_STACK(); + + PJ_LOG(5,(THIS_FILE, "pj_stun_parse_msg %p, len=%d", buf, len)); + + msg->hdr = (pj_stun_msg_hdr*)buf; + msg_type = pj_ntohs(msg->hdr->type); + + switch (msg_type) { + case PJ_STUN_BINDING_REQUEST: + case PJ_STUN_BINDING_RESPONSE: + case PJ_STUN_BINDING_ERROR_RESPONSE: + case PJ_STUN_SHARED_SECRET_REQUEST: + case PJ_STUN_SHARED_SECRET_RESPONSE: + case PJ_STUN_SHARED_SECRET_ERROR_RESPONSE: + break; + default: + PJ_LOG(5,(THIS_FILE, "Error: unknown msg type %d", msg_type)); + return -1; + } + + msg_len = pj_ntohs(msg->hdr->length); + if (msg_len != len - sizeof(pj_stun_msg_hdr)) { + PJ_LOG(5,(THIS_FILE, "Error: invalid msg_len %d (expecting %d)", + msg_len, len - sizeof(pj_stun_msg_hdr))); + return -1; + } + + msg->attr_count = 0; + p_attr = (char*)buf + sizeof(pj_stun_msg_hdr); + + while (msg_len > 0) { + pj_stun_attr_hdr **attr = &msg->attr[msg->attr_count]; + pj_uint32_t len; + + *attr = (pj_stun_attr_hdr*)p_attr; + len = pj_ntohs((pj_uint16_t) ((*attr)->length)) + sizeof(pj_stun_attr_hdr); + + if (msg_len < len) { + PJ_LOG(5,(THIS_FILE, "Error: length mismatch in attr %d", + msg->attr_count)); + return -1; + } + + if (pj_ntohs((*attr)->type) > PJ_STUN_ATTR_REFLECTED_FORM) { + PJ_LOG(5,(THIS_FILE, "Error: invalid attr type %d in attr %d", + pj_ntohs((*attr)->type), msg->attr_count)); + return -1; + } + + msg_len = (pj_uint16_t)(msg_len - len); + p_attr += len; + ++msg->attr_count; + } + + return 0; +} + +PJ_DEF(void*) pj_stun_msg_find_attr( pj_stun_msg *msg, pj_stun_attr_type t) +{ + int i; + + PJ_CHECK_STACK(); + + for (i=0; i<msg->attr_count; ++i) { + pj_stun_attr_hdr *attr = msg->attr[i]; + if (pj_ntohs(attr->type) == t) + return attr; + } + + return 0; +} |