static int stun_new_transaction_id(char *tid) {
time_t now;
/* OSIP MD5 hash lenght is 16 bytes (32 hex digits),
* so this does fit for STUN transaction ID... */
osip_MD5_CTX Md5Ctx;
HASH HA1;
time(&now);
/* calc MD5 from servername + timestamp */
osip_MD5Init(&Md5Ctx);
if (plugin_cfg.server) osip_MD5Update(&Md5Ctx,
(unsigned char*)plugin_cfg.server,
strlen(plugin_cfg.server));
osip_MD5Update(&Md5Ctx, (unsigned char*)&now, sizeof(now));
osip_MD5Final(HA1, &Md5Ctx);
memcpy(tid, HA1, (STUN_TID_SIZE<HASHLEN)? STUN_TID_SIZE:HASHLEN);
return STS_SUCCESS;
}
int
eXosip_reg_init(eXosip_reg_t ** jr, const char *from, const char *proxy,
const char *contact)
{
static int r_id = 0;
*jr = (eXosip_reg_t *) osip_malloc(sizeof(eXosip_reg_t));
if (*jr == NULL)
return OSIP_NOMEM;
if (r_id == 32767) /* keep it non-negative */
r_id = 0;
memset(*jr, '\0', sizeof(eXosip_reg_t));
(*jr)->r_id = ++r_id;
(*jr)->r_reg_period = 3600; /* delay between registration */
(*jr)->r_aor = osip_strdup(from); /* sip identity */
if ((*jr)->r_aor == NULL) {
osip_free(*jr);
*jr = NULL;
return OSIP_NOMEM;
}
(*jr)->r_contact = osip_strdup(contact); /* sip identity */
(*jr)->r_registrar = osip_strdup(proxy); /* registrar */
if ((*jr)->r_registrar == NULL) {
osip_free((*jr)->r_contact);
osip_free((*jr)->r_aor);
osip_free(*jr);
*jr = NULL;
return OSIP_NOMEM;
}
{
osip_MD5_CTX Md5Ctx;
HASH hval;
HASHHEX key_line;
char localip[128];
char firewall_ip[65];
char firewall_port[10];
memset(localip, '\0', sizeof(localip));
memset(firewall_ip, '\0', sizeof(firewall_ip));
memset(firewall_port, '\0', sizeof(firewall_port));
eXosip_guess_localip(AF_INET, localip, 128);
if (eXosip.eXtl != NULL && eXosip.eXtl->tl_get_masquerade_contact != NULL) {
eXosip.eXtl->tl_get_masquerade_contact(firewall_ip,
sizeof(firewall_ip),
firewall_port,
sizeof(firewall_port));
}
osip_MD5Init(&Md5Ctx);
osip_MD5Update(&Md5Ctx, (unsigned char *) from, strlen(from));
osip_MD5Update(&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update(&Md5Ctx, (unsigned char *) proxy, strlen(proxy));
osip_MD5Update(&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update(&Md5Ctx, (unsigned char *) localip, strlen(localip));
osip_MD5Update(&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update(&Md5Ctx, (unsigned char *) firewall_ip,
strlen(firewall_ip));
osip_MD5Update(&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update(&Md5Ctx, (unsigned char *) firewall_port,
strlen(firewall_port));
osip_MD5Final((unsigned char *) hval, &Md5Ctx);
CvtHex(hval, key_line);
osip_strncpy((*jr)->r_line, key_line, sizeof((*jr)->r_line) - 1);
}
return OSIP_SUCCESS;
}
int
_eXosip_reg_init (struct eXosip_t *excontext, eXosip_reg_t ** jr, const char *from, const char *proxy, const char *contact)
{
static int r_id = 0;
*jr = (eXosip_reg_t *) osip_malloc (sizeof (eXosip_reg_t));
if (*jr == NULL)
return OSIP_NOMEM;
if (r_id == INT_MAX) /* keep it non-negative */
r_id = 0;
memset (*jr, '\0', sizeof (eXosip_reg_t));
(*jr)->r_id = ++r_id;
(*jr)->r_reg_period = 3600; /* delay between registration */
(*jr)->r_aor = osip_strdup (from); /* sip identity */
if ((*jr)->r_aor == NULL) {
osip_free (*jr);
*jr = NULL;
return OSIP_NOMEM;
}
(*jr)->r_contact = osip_strdup (contact); /* sip identity */
(*jr)->r_registrar = osip_strdup (proxy); /* registrar */
if ((*jr)->r_registrar == NULL) {
osip_free ((*jr)->r_contact);
osip_free ((*jr)->r_aor);
osip_free (*jr);
*jr = NULL;
return OSIP_NOMEM;
}
{
osip_MD5_CTX Md5Ctx;
HASH hval;
HASHHEX key_line;
char localip[128];
char firewall_ip[65];
char firewall_port[10];
char somerandom[31];
memset (somerandom, 0, sizeof (somerandom));
eXosip_generate_random (somerandom, 16);
memset (localip, '\0', sizeof (localip));
memset (firewall_ip, '\0', sizeof (firewall_ip));
memset (firewall_port, '\0', sizeof (firewall_port));
eXosip_guess_localip (excontext, AF_INET, localip, 128);
if (excontext->eXtl_transport.tl_get_masquerade_contact != NULL) {
excontext->eXtl_transport.tl_get_masquerade_contact (excontext, firewall_ip, sizeof (firewall_ip), firewall_port, sizeof (firewall_port));
}
osip_MD5Init (&Md5Ctx);
osip_MD5Update (&Md5Ctx, (unsigned char *) from, (unsigned int) strlen (from));
osip_MD5Update (&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update (&Md5Ctx, (unsigned char *) proxy, (unsigned int) strlen (proxy));
osip_MD5Update (&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update (&Md5Ctx, (unsigned char *) localip, (unsigned int) strlen (localip));
osip_MD5Update (&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update (&Md5Ctx, (unsigned char *) firewall_ip, (unsigned int) strlen (firewall_ip));
osip_MD5Update (&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update (&Md5Ctx, (unsigned char *) firewall_port, (unsigned int) strlen (firewall_port));
/* previously, "line" was common accross several identical restart. */
/* including random will help to read a correct "expires" parameter */
/* from 2xx REGISTER answers */
osip_MD5Update (&Md5Ctx, (unsigned char *) ":", 1);
osip_MD5Update (&Md5Ctx, (unsigned char *) somerandom, (unsigned int) strlen (somerandom));
osip_MD5Final ((unsigned char *) hval, &Md5Ctx);
CvtHex (hval, key_line);
osip_strncpy ((*jr)->r_line, key_line, sizeof ((*jr)->r_line) - 1);
}
return OSIP_SUCCESS;
}