laforge has submitted this change. ( 
https://gerrit.osmocom.org/c/osmo-bsc/+/32176 )

Change subject: gprs: fix has_valid_nsvc(): permit local udp port 0
......................................................................

gprs: fix has_valid_nsvc(): permit local udp port 0

NSVC local port 0 is actually a valid value, which tells the PCU to
pick a random port for bind()ing.  It was supported before 315af2f9e,
but now osmo-bsc would simply ignore NSVCs with 'local udp port 0'
and leave the respective MOs unconfigured in the BTS.

Change-Id: I0afd83e77f3daeeb082e7db911610428b5bc587c
Fixes: 315af2f9e "bts: ipa/osmo-bts/sysmobts: MO: add support for the second 
NSVC"
Related: OS#5979
---
M src/osmo-bsc/nm_gprs_nsvc_fsm.c
1 file changed, 23 insertions(+), 2 deletions(-)

Approvals:
  laforge: Looks good to me, approved
  pespin: Looks good to me, but someone else must approve
  Jenkins Builder: Verified




diff --git a/src/osmo-bsc/nm_gprs_nsvc_fsm.c b/src/osmo-bsc/nm_gprs_nsvc_fsm.c
index 5186082..906ba2a 100644
--- a/src/osmo-bsc/nm_gprs_nsvc_fsm.c
+++ b/src/osmo-bsc/nm_gprs_nsvc_fsm.c
@@ -90,12 +90,17 @@
        }
 }

-static bool has_valid_nsvc(struct gsm_gprs_nsvc *nsvc)
+static bool has_valid_nsvc(const struct gsm_gprs_nsvc *nsvc)
 {
+       /* remote address must be valid */
+       if (osmo_sockaddr_is_any(&nsvc->remote))
+               return false;
+       /* remote port must be valid */
        switch (nsvc->remote.u.sa.sa_family) {
        case AF_INET:
+               return nsvc->remote.u.sin.sin_port != 0;
        case AF_INET6:
-               return (nsvc->local_port > 0 && 
!osmo_sockaddr_is_any(&nsvc->remote));
+               return nsvc->remote.u.sin6.sin6_port != 0;
        default:
                return false;
        }

--
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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: I0afd83e77f3daeeb082e7db911610428b5bc587c
Gerrit-Change-Number: 32176
Gerrit-PatchSet: 3
Gerrit-Owner: fixeria <vyanits...@sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillm...@sysmocom.de>
Gerrit-Reviewer: laforge <lafo...@osmocom.org>
Gerrit-Reviewer: lynxis lazus <lyn...@fe80.eu>
Gerrit-Reviewer: pespin <pes...@sysmocom.de>
Gerrit-MessageType: merged

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