diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2013-12-19 18:53:07 +0100 |
|---|---|---|
| committer | Holger Hans Peter Freyther <holger@moiji-mobile.com> | 2014-01-16 13:20:51 +0100 |
| commit | 075a9ebdcc385ce7a87fb36f7a44a6c71d7dcbbb (patch) | |
| tree | 2fbfa354db8458c878d22b0fed0baa4e567ef74d /openbsc/include/openbsc | |
| parent | 34bdc9f8fe3862ce3213820d356a8ebbc45b7362 (diff) | |
mgcp: Send RTP keepalive dummy packets to net
So far, a single dummy packet has been sent immediately after the
reception of a MDCX message. There is no dedicated keep alive
mechanism (it just worked because the audio from the MS has always
been forwarded to the NAT until the 'mgcp: Set output_enabled flags
based on the MGCP mode' patch).
This patch adds explicit, timer based keep alive handling that can be
enable per trunk. A VTY command 'rtp keep-alive' command is added for
configuration which can be used to set the interval in seconds, to
send a single packet after the reception of a CRCX/MDCX when RTP data
from the net is expected ('once'), or to disable the feature
completely ('no rtp keep-alive'). In 'send-recv' connections, only
the initial packet is sent if enabled (even when an interval has been
configured). The default is 'once'.
Note that this removes the mgcp_change_cb() from mgcp_main.c.
Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/include/openbsc')
| -rw-r--r-- | openbsc/include/openbsc/mgcp.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/openbsc/include/openbsc/mgcp.h b/openbsc/include/openbsc/mgcp.h index 335c83d93..1d7407820 100644 --- a/openbsc/include/openbsc/mgcp.h +++ b/openbsc/include/openbsc/mgcp.h @@ -25,6 +25,7 @@ #include <osmocom/core/msgb.h> #include <osmocom/core/write_queue.h> +#include <osmocom/core/timer.h> #include "debug.h" @@ -103,6 +104,8 @@ struct mgcp_port_range { int last_port; }; +#define MGCP_KEEPALIVE_ONCE (-1) + struct mgcp_trunk_config { struct llist_head entry; @@ -118,6 +121,7 @@ struct mgcp_trunk_config { int audio_loop; int omit_rtcp; + int keepalive_interval; /* RTP patching */ int force_constant_ssrc; /* 0: don't, 1: once */ @@ -126,6 +130,9 @@ struct mgcp_trunk_config { /* spec handling */ int force_realloc; + /* timer */ + struct osmo_timer_list keepalive_timer; + unsigned int number_endpoints; struct mgcp_endpoint *endpoints; }; @@ -187,6 +194,8 @@ int mgcp_reset_transcoder(struct mgcp_config *cfg); void mgcp_format_stats(struct mgcp_endpoint *endp, char *stats, size_t size); int mgcp_parse_stats(struct msgb *msg, uint32_t *ps, uint32_t *os, uint32_t *pr, uint32_t *_or, int *loss, uint32_t *jitter); +void mgcp_trunk_set_keepalive(struct mgcp_trunk_config *tcfg, int interval); + /* * format helper functions */ |