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/**
* @file sip/location.c Mock SIP server -- location handling
*
* Copyright (C) 2010 - 2016 Creytiv.com
*/
#include <time.h>
#include <re.h>
#include "sipsrv.h"
struct loctmp {
struct sa src;
struct uri duri;
char *uri;
char *callid;
uint32_t expires;
uint32_t cseq;
double q;
};
static void destructor_loctmp(void *arg)
{
struct loctmp *tmp = arg;
mem_deref(tmp->uri);
mem_deref(tmp->callid);
}
static void destructor_location(void *arg)
{
struct location *loc = arg;
list_unlink(&loc->le);
mem_deref(loc->uri);
mem_deref(loc->callid);
mem_deref(loc->tmp);
}
static bool cmp_handler(struct le *le, void *arg)
{
struct location *loc = le->data;
return uri_cmp(&loc->duri, arg);
}
int location_update(struct list *locl, const struct sip_msg *msg,
const struct sip_addr *contact, uint32_t expires)
{
struct location *loc, *loc_new = NULL;
struct loctmp *tmp;
struct pl pl;
int err;
if (!locl || !msg || !contact)
return EINVAL;
loc = list_ledata(list_apply(locl, true, cmp_handler,
(void *)&contact->uri));
if (!loc) {
if (expires == 0)
return 0;
loc = loc_new = mem_zalloc(sizeof(*loc), destructor_location);
if (!loc)
return ENOMEM;
list_append(locl, &loc->le, loc);
}
else {
if (!pl_strcmp(&msg->callid, loc->callid) &&
msg->cseq.num <= loc->cseq)
return EPROTO;
if (expires == 0) {
loc->rm = true;
return 0;
}
}
tmp = mem_zalloc(sizeof(*tmp), destructor_loctmp);
if (!tmp) {
err = ENOMEM;
goto out;
}
err = pl_strdup(&tmp->uri, &contact->auri);
if (err)
goto out;
pl_set_str(&pl, tmp->uri);
if (uri_decode(&tmp->duri, &pl)) {
err = EBADMSG;
goto out;
}
err = pl_strdup(&tmp->callid, &msg->callid);
if (err)
goto out;
if (!msg_param_decode(&contact->params, "q", &pl))
tmp->q = pl_float(&pl);
else
tmp->q = 1;
tmp->cseq = msg->cseq.num;
tmp->expires = expires;
tmp->src = msg->src;
out:
if (err) {
mem_deref(loc_new);
mem_deref(tmp);
}
else {
mem_deref(loc->tmp);
loc->tmp = tmp;
}
return err;
}
void location_commit(struct list *locl)
{
time_t now = time(NULL);
struct le *le;
if (!locl)
return;
for (le=locl->head; le; ) {
struct location *loc = le->data;
le = le->next;
if (loc->rm) {
list_unlink(&loc->le);
mem_deref(loc);
}
else if (loc->tmp) {
mem_deref(loc->uri);
mem_deref(loc->callid);
loc->uri = mem_ref(loc->tmp->uri);
loc->callid = mem_ref(loc->tmp->callid);
loc->duri = loc->tmp->duri;
loc->cseq = loc->tmp->cseq;
loc->expires = loc->tmp->expires + now;
loc->src = loc->tmp->src;
loc->q = loc->tmp->q;
loc->tmp = mem_deref(loc->tmp);
}
}
}
void location_rollback(struct list *locl)
{
struct le *le;
if (!locl)
return;
for (le=locl->head; le; ) {
struct location *loc = le->data;
le = le->next;
if (!loc->uri) {
list_unlink(&loc->le);
mem_deref(loc);
}
else {
loc->tmp = mem_deref(loc->tmp);
loc->rm = false;
}
}
}
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