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set TCP source port in Via and Contact header #334

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merged 5 commits into from
Apr 27, 2022
Merged

set TCP source port in Via and Contact header #334

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b1685de
sipreg: use optional TCP src port for Contact port
cspiel1 Mar 2, 2022
c80fabf
sip: use local TCP port also for Via header
cspiel1 Mar 7, 2022
28eef04
sip: set TCP src port in Via and Contact also for first REGISTER
cspiel1 Mar 10, 2022
b83e16c
sip: set TCP src port at laddr in all Via and Contact headers
cspiel1 Mar 16, 2022
f30ca14
sip: "err =" instead of "err |=" in request()
cspiel1 Apr 27, 2022
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25 changes: 17 additions & 8 deletions src/sip/request.c
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Original file line number Diff line number Diff line change
Expand Up @@ -161,7 +161,8 @@ static void response_handler(int err, const struct sip_msg *msg, void *arg)
static int request(struct sip_request *req, enum sip_transp tp,
const struct sa *dst)
{
struct mbuf *mb = NULL;
struct mbuf *mbs = NULL;
struct mbuf *mb = NULL;
struct mbuf *cont = NULL;
char *branch = NULL;
int err = ENOMEM;
Expand All @@ -171,7 +172,8 @@ static int request(struct sip_request *req, enum sip_transp tp,
req->provrecv = false;

branch = mem_alloc(24, NULL);
mb = mbuf_alloc(1024);
mbs = mbuf_alloc(256);
mb = mbuf_alloc(1024);

if (!branch || !mb)
goto out;
Expand All @@ -182,16 +184,22 @@ static int request(struct sip_request *req, enum sip_transp tp,
if (err)
goto out;

conncfg = sip_conncfg_find(req->sip, dst);
if (conncfg && conncfg->srcport && (tp==SIP_TRANSP_TCP ||
tp==SIP_TRANSP_TLS))
sa_set_port(&laddr, conncfg->srcport);
err |= req->sendh ? req->sendh(tp, &laddr, dst, mbs, &cont, req->arg) :
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0;
if (err)
goto out;

mbuf_set_pos(mbs, 0);
if (tp==SIP_TRANSP_TCP || tp==SIP_TRANSP_TLS) {
conncfg = sip_conncfg_find(req->sip, dst);
if (conncfg && conncfg->srcport)
sa_set_port(&laddr, conncfg->srcport);
}

err = mbuf_printf(mb, "%s %s SIP/2.0\r\n", req->met, req->uri);
err |= mbuf_printf(mb, "Via: SIP/2.0/%s %J;branch=%s;rport\r\n",
sip_transp_name(tp), &laddr, branch);
err |= req->sendh ? req->sendh(tp, &laddr, dst, mb, &cont, req->arg) :
0;
err |= mbuf_write_mem(mb, mbuf_buf(mbs), mbuf_get_left(mbs));
err |= mbuf_write_mem(mb, mbuf_buf(req->mb), mbuf_get_left(req->mb));
err |= cont ? mbuf_write_mem(mb, mbuf_buf(cont), mbuf_get_left(cont)) :
0;
Expand All @@ -212,6 +220,7 @@ static int request(struct sip_request *req, enum sip_transp tp,

out:
mem_deref(branch);
mem_deref(mbs);
mem_deref(mb);

return err;
Expand Down