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move RTP socket information from timeslot to lchan 

With ip.access, in case of TCH/H, we have one RTP stream for each half-slot
(lchan), not just one per on-air timeslot.  This is quite different from
a classic BTS where the TRAU frames of the two TCH/H channels would be
part of the same 16k sub-slot in a E1 timeslot.
This commit is contained in:
Harald Welte 2009-12-02 01:56:49 +05:30
parent a43f789a0a
commit 2c82899135
4 changed files with 47 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
openbsc/include/openbsc/gsm_data.h
View File

@ -185,6 +185,14 @@ struct gsm_lchan {
/* use count. how many users use this channel */
unsigned int use_count;
struct {
u_int32_t bound_ip;
u_int16_t bound_port;
u_int8_t rtp_payload2;
u_int16_t conn_id;
struct rtp_socket *rtp_socket;
} abis_ip;
};
struct gsm_e1_subslot {
@ -212,13 +220,6 @@ struct gsm_bts_trx_ts {
/* To which E1 subslot are we connected */
struct gsm_e1_subslot e1_link;
struct {
u_int32_t bound_ip;
u_int16_t bound_port;
u_int8_t rtp_payload2;
u_int16_t conn_id;
struct rtp_socket *rtp_socket;
} abis_ip;
struct gsm_lchan lchan[TS_MAX_LCHAN];
};

12
openbsc/src/abis_rsl.c
View File

@ -1555,7 +1555,7 @@ static int abis_rsl_rx_ipacc_crcx_ack(struct msgb *msg)
{
struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
struct tlv_parsed tv;
struct gsm_bts_trx_ts *ts = msg->lchan->ts;
struct gsm_lchan *lchan = msg->lchan;
struct in_addr ip;
u_int16_t port, attr_f8;
@ -1578,16 +1578,16 @@ static int abis_rsl_rx_ipacc_crcx_ack(struct msgb *msg)
inet_ntoa(ip), ntohs(port), ntohs(attr_f8));
if (TLVP_PRESENT(&tv, RSL_IE_IPAC_RTP_PAYLOAD2)) {
ts->abis_ip.rtp_payload2 =
lchan->abis_ip.rtp_payload2 =
*TLVP_VAL(&tv, RSL_IE_IPAC_RTP_PAYLOAD2);
DEBUGPC(DRSL, "RTP_PAYLOAD2=0x%02x ",
ts->abis_ip.rtp_payload2);
lchan->abis_ip.rtp_payload2);
}
/* update our local information about this TS */
ts->abis_ip.bound_ip = ntohl(ip.s_addr);
ts->abis_ip.bound_port = ntohs(port);
ts->abis_ip.conn_id = ntohs(attr_f8);
lchan->abis_ip.bound_ip = ntohl(ip.s_addr);
lchan->abis_ip.bound_port = ntohs(port);
lchan->abis_ip.conn_id = ntohs(attr_f8);
dispatch_signal(SS_ABISIP, S_ABISIP_CRCX_ACK, msg->lchan);

55
openbsc/src/gsm_04_08.c
View File

@ -1844,7 +1844,6 @@ static int handle_abisip_signal(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data)
{
struct gsm_lchan *lchan = signal_data;
struct gsm_bts_trx_ts *ts;
int rc;
if (subsys != SS_ABISIP)
@ -1854,32 +1853,30 @@ static int handle_abisip_signal(unsigned int subsys, unsigned int signal,
if (ipacc_rtp_direct)
return 0;
ts = lchan->ts;
switch (signal) {
case S_ABISIP_CRCX_ACK:
/* the BTS has successfully bound a TCH to a local ip/port,
* which means we can connect our UDP socket to it */
if (ts->abis_ip.rtp_socket) {
rtp_socket_free(ts->abis_ip.rtp_socket);
ts->abis_ip.rtp_socket = NULL;
if (lchan->abis_ip.rtp_socket) {
rtp_socket_free(lchan->abis_ip.rtp_socket);
lchan->abis_ip.rtp_socket = NULL;
}
ts->abis_ip.rtp_socket = rtp_socket_create();
if (!ts->abis_ip.rtp_socket)
lchan->abis_ip.rtp_socket = rtp_socket_create();
if (!lchan->abis_ip.rtp_socket)
goto out_err;
rc = rtp_socket_connect(ts->abis_ip.rtp_socket,
ts->abis_ip.bound_ip,
ts->abis_ip.bound_port);
rc = rtp_socket_connect(lchan->abis_ip.rtp_socket,
lchan->abis_ip.bound_ip,
lchan->abis_ip.bound_port);
if (rc < 0)
goto out_err;
break;
case S_ABISIP_DLCX_IND:
/* the BTS tells us a RTP stream has been disconnected */
if (ts->abis_ip.rtp_socket) {
rtp_socket_free(ts->abis_ip.rtp_socket);
ts->abis_ip.rtp_socket = NULL;
if (lchan->abis_ip.rtp_socket) {
rtp_socket_free(lchan->abis_ip.rtp_socket);
lchan->abis_ip.rtp_socket = NULL;
}
break;
}
@ -1893,15 +1890,14 @@ out_err:
/* bind rtp proxy to local IP/port and tell BTS to connect to it */
static int ipacc_connect_proxy_bind(struct gsm_lchan *lchan)
{
struct gsm_bts_trx_ts *ts = lchan->ts;
struct rtp_socket *rs = ts->abis_ip.rtp_socket;
struct rtp_socket *rs = lchan->abis_ip.rtp_socket;
int rc;
rc = rsl_ipacc_mdcx(lchan, ntohl(rs->rtp.sin_local.sin_addr.s_addr),
ntohs(rs->rtp.sin_local.sin_port),
ts->abis_ip.conn_id,
lchan->abis_ip.conn_id,
/* FIXME: use RTP payload of bound socket, not BTS*/
ts->abis_ip.rtp_payload2);
lchan->abis_ip.rtp_payload2);
return rc;
}
@ -1911,7 +1907,6 @@ static int tch_map(struct gsm_lchan *lchan, struct gsm_lchan *remote_lchan)
{
struct gsm_bts *bts = lchan->ts->trx->bts;
struct gsm_bts *remote_bts = remote_lchan->ts->trx->bts;
struct gsm_bts_trx_ts *ts;
int rc;
DEBUGP(DCC, "Setting up TCH map between (bts=%u,trx=%u,ts=%u) and (bts=%u,trx=%u,ts=%u)\n",
@ -1933,22 +1928,20 @@ static int tch_map(struct gsm_lchan *lchan, struct gsm_lchan *remote_lchan)
rc = ipacc_connect_proxy_bind(remote_lchan);
/* connect them with each other */
rtp_socket_proxy(lchan->ts->abis_ip.rtp_socket,
remote_lchan->ts->abis_ip.rtp_socket);
rtp_socket_proxy(lchan->abis_ip.rtp_socket,
remote_lchan->abis_ip.rtp_socket);
} else {
/* directly connect TCH RTP streams to each other */
ts = remote_lchan->ts;
rc = rsl_ipacc_mdcx(lchan, ts->abis_ip.bound_ip,
ts->abis_ip.bound_port,
lchan->ts->abis_ip.conn_id,
ts->abis_ip.rtp_payload2);
rc = rsl_ipacc_mdcx(lchan, remote_lchan->abis_ip.bound_ip,
remote_lchan->abis_ip.bound_port,
lchan->abis_ip.conn_id,
remote_lchan->abis_ip.rtp_payload2);
if (rc < 0)
return rc;
ts = lchan->ts;
rc = rsl_ipacc_mdcx(remote_lchan, ts->abis_ip.bound_ip,
ts->abis_ip.bound_port,
remote_lchan->ts->abis_ip.conn_id,
ts->abis_ip.rtp_payload2);
rc = rsl_ipacc_mdcx(remote_lchan, lchan->abis_ip.bound_ip,
lchan->abis_ip.bound_port,
remote_lchan->abis_ip.conn_id,
lchan->abis_ip.rtp_payload2);
}
break;
case GSM_BTS_TYPE_BS11:

19
openbsc/src/vty_interface.c
View File

@ -365,24 +365,15 @@ DEFUN(show_trx,
static void ts_dump_vty(struct vty *vty, struct gsm_bts_trx_ts *ts)
{
struct in_addr ia;
vty_out(vty, "Timeslot %u of TRX %u in BTS %u, phys cfg %s%s",
ts->nr, ts->trx->nr, ts->trx->bts->nr,
gsm_pchan_name(ts->pchan), VTY_NEWLINE);
vty_out(vty, " NM State: ");
net_dump_nmstate(vty, &ts->nm_state);
if (is_ipaccess_bts(ts->trx->bts)) {
ia.s_addr = ts->abis_ip.bound_ip;
vty_out(vty, " Bound IP: %s Port %u RTP_TYPE2=%u CONN_ID=%u%s",
inet_ntoa(ia), ts->abis_ip.bound_port,
ts->abis_ip.rtp_payload2, ts->abis_ip.conn_id,
VTY_NEWLINE);
} else {
if (!is_ipaccess_bts(ts->trx->bts))
vty_out(vty, " E1 Line %u, Timeslot %u, Subslot %u%s",
ts->e1_link.e1_nr, ts->e1_link.e1_ts,
ts->e1_link.e1_ts_ss, VTY_NEWLINE);
}
}
DEFUN(show_ts,
@ -471,6 +462,14 @@ static void lchan_dump_vty(struct vty *vty, struct gsm_lchan *lchan)
subscr_dump_vty(vty, lchan->subscr);
} else
vty_out(vty, " No Subscriber%s", VTY_NEWLINE);
if (is_ipaccess_bts(lchan->ts->trx->bts)) {
struct in_addr ia;
ia.s_addr = lchan->abis_ip.bound_ip;
vty_out(vty, " Bound IP: %s Port %u RTP_TYPE2=%u CONN_ID=%u%s",
inet_ntoa(ia), lchan->abis_ip.bound_port,
lchan->abis_ip.rtp_payload2, lchan->abis_ip.conn_id,
VTY_NEWLINE);
}
}
#if 0