neels has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-msc/+/31694 ) Change subject: add ran_infra.force_mgw_codecs_to_ran ...................................................................... add ran_infra.force_mgw_codecs_to_ran Indicate in the ran_infra data structure whether a RAN needs specific codecs to be set up on the RAN facing MGW endpoint. This allows setting forced RAN codecs as first-class citizen in the ran_infra data structure, instead of special cases in the code (for IuUP on IuCS). Will be used in subsequent commit I37f65c36af2679ecba1040a11a9aa0eb9481d817, submitted separately for easier readability. Change-Id: I37f65c36af2679ecba1040a11a9aa0eb9481d817 --- M include/osmocom/msc/ran_infra.h M src/libmsc/msc_a.c M src/libmsc/ran_infra.c M tests/msc_vlr/msc_vlr_tests.c 4 files changed, 47 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-msc refs/changes/94/31694/1 diff --git a/include/osmocom/msc/ran_infra.h b/include/osmocom/msc/ran_infra.h index 38c424f..262a9c8 100644 --- a/include/osmocom/msc/ran_infra.h +++ b/include/osmocom/msc/ran_infra.h @@ -4,6 +4,7 @@ #include <osmocom/gsm/gsup.h> #include <osmocom/msc/sccp_ran.h> #include <osmocom/msc/ran_msg.h> +#include <osmocom/msc/sdp_msg.h> struct osmo_tdef; @@ -25,6 +26,10 @@ const ran_dec_l2_t ran_dec_l2; const ran_encode_t ran_encode; struct sccp_ran_inst *sri; + /* To always set up the MGW endpoint facing the RAN side with specific codecs, list those here. Otherwise leave + * empty (to use the result of codecs filtering). This exists for IuCS, to always set the MGW endpoint facing + * RAN to IUFP, to decapsulate the IuUP headers. */ + struct sdp_audio_codecs force_mgw_codecs_to_ran; }; extern struct ran_infra msc_ran_infra[]; diff --git a/src/libmsc/msc_a.c b/src/libmsc/msc_a.c index 4c7f763..7db1d0a 100644 --- a/src/libmsc/msc_a.c +++ b/src/libmsc/msc_a.c @@ -1791,6 +1791,8 @@ return osmo_fsm_inst_dispatch(msc_a->c.fi, MSC_EV_CALL_LEG_RTP_LOCAL_ADDR_AVAILABLE, cl->rtp[RTP_TO_RAN]); if (msc_a->c.ran->type == OSMO_RAT_UTRAN_IU) { + /* FUTURE: ran_infra->force_mgw_codecs_to_ran is intended to be used here instead of the special + * condition on OSMO_RAT_UTRAN_IU and the mgcp_codecs value CODEC_IUFP */ codec = CODEC_IUFP; codec_ptr = &codec; } else { diff --git a/src/libmsc/ran_infra.c b/src/libmsc/ran_infra.c index c0eaa1a..35dfd61 100644 --- a/src/libmsc/ran_infra.c +++ b/src/libmsc/ran_infra.c @@ -108,6 +108,16 @@ .ran_dec_l2 = ran_iu_decode_l2, .ran_encode = ran_iu_encode, #endif + .force_mgw_codecs_to_ran = { + .count = 1, + .codec = { + { + .payload_type = 96, + .subtype_name = "VND.3GPP.IUFP", + .rate = 16000, + }, + }, + }, }, [OSMO_RAT_EUTRAN_SGS] = { .type = OSMO_RAT_EUTRAN_SGS, diff --git a/tests/msc_vlr/msc_vlr_tests.c b/tests/msc_vlr/msc_vlr_tests.c index 6b80452..b0c60ed 100644 --- a/tests/msc_vlr/msc_vlr_tests.c +++ b/tests/msc_vlr/msc_vlr_tests.c @@ -408,6 +408,16 @@ .log_subsys = DIUCS, .tdefs = msc_tdefs_utran, .ran_encode = dont_ran_encode, + .force_mgw_codecs_to_ran = { + .count = 1, + .codec = { + { + .payload_type = 96, + .subtype_name = "VND.3GPP.IUFP", + .rate = 16000, + }, + }, + }, }, }; -- To view, visit https://gerrit.osmocom.org/c/osmo-msc/+/31694 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-msc Gerrit-Branch: master Gerrit-Change-Id: I37f65c36af2679ecba1040a11a9aa0eb9481d817 Gerrit-Change-Number: 31694 Gerrit-PatchSet: 1 Gerrit-Owner: neels <nhofmeyr@sysmocom.de> Gerrit-MessageType: newchange