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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. Change subject: SUA: Reject unknown Connectionless Message Types ...................................................................... SUA: Reject unknown Connectionless Message Types This was found by sua-sgp-mtr-i-03 of Michael Tuexen's sua-testtool. Change-Id: I09e96a26d9f9398de07ab46cdc5af10b2ea5acc0 --- M src/sua.c 1 file changed, 11 insertions(+), 0 deletions(-) Approvals: Harald Welte: Looks good to me, approved Jenkins Builder: Verified diff --git a/src/sua.c b/src/sua.c index 97a0785..f003f7b 100644 --- a/src/sua.c +++ b/src/sua.c @@ -498,6 +498,17 @@ { struct osmo_sccp_instance *inst = asp->inst->sccp; + OSMO_ASSERT(xua->hdr.msg_class == SUA_MSGC_CL); + + switch (xua->hdr.msg_type) { + case 0: /* Reserved, permitted by ETSI TS 101 592 5.2.3.2 */ + case SUA_CL_CLDT: + case SUA_CL_CLDR: + break; + default: + return SUA_ERR_UNSUPP_MSG_TYPE; + } + /* We feed into SCRC, which then hands the message into * either SCLC or SCOC, or forwards it to MTP */ return scrc_rx_mtp_xfer_ind_xua(inst, xua); -- To view, visit https://gerrit.osmocom.org/2383 To unsubscribe, visit https://gerrit.osmocom.org/settings Gerrit-MessageType: merged Gerrit-Change-Id: I09e96a26d9f9398de07ab46cdc5af10b2ea5acc0 Gerrit-PatchSet: 1 Gerrit-Project: libosmo-sccp Gerrit-Branch: master Gerrit-Owner: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder