laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmo-sccp/+/33642 )

Change subject: M3UA/SUA: Don't add empty routing context IE in DUNA/DAVA ......................................................................

M3UA/SUA: Don't add empty routing context IE in DUNA/DAVA

Before this patch, the code generating a DUNA or DAVA message would potentially generate a ROUTE_CTX IE with zero-length content, rather than skipping such an IE altogether if no routing context[s] are given.

Change-Id: I19d0382cd2d428a91ac716182b9d86dcdc2c2ebd Related: SYS#6511 --- M src/m3ua.c M src/sua.c 2 files changed, 16 insertions(+), 2 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/libosmo-sccp refs/changes/42/33642/1

diff --git a/src/m3ua.c b/src/m3ua.c index 8d82522..4c5d8d4 100644 --- a/src/m3ua.c +++ b/src/m3ua.c @@ -827,7 +827,7 @@

xua->hdr = XUA_HDR(M3UA_MSGC_SNM, M3UA_SNM_DUPU); xua->hdr.version = M3UA_VERSION; - if (rctx) + if (rctx && num_rctx) xua_msg_add_data(xua, M3UA_IEI_ROUTE_CTX, num_rctx * sizeof(*rctx), (const uint8_t *)rctx);

xua_msg_add_u32(xua, M3UA_IEI_AFFECTED_PC, dpc); diff --git a/src/sua.c b/src/sua.c index a20d751..2a03f22 100644 --- a/src/sua.c +++ b/src/sua.c @@ -838,7 +838,7 @@

xua->hdr = XUA_HDR(SUA_MSGC_SNM, SUA_SNM_DUNA); xua->hdr.version = SUA_VERSION; - if (rctx) + if (rctx && num_rctx) xua_msg_add_data(xua, SUA_IEI_ROUTE_CTX, num_rctx * sizeof(*rctx), (const uint8_t *)rctx);

xua_msg_add_u32(xua, SUA_IEI_AFFECTED_PC, dpc);