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authorJacob Erlbeck <jerlbeck@sysmocom.de>2015-04-07 17:52:45 +0200
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2015-04-07 20:10:23 +0200
commit8d192d7153498498ff6232209c900e67256b8036 (patch)
treedfe80d1df694d101175e5026b8b4182a8e447ca3 /src/gb/gprs_ns.c
parentb535e391b0f1d030373159ddbf54483d7fa54763 (diff)
ns: Log when sending fails (Coverity)
Currently the return value of the gprs_ns_tx family of functions is often ignored. This is not a serious issue, since the successful delivery of the messages is neither guaranteed nor acknowledged by the network layer anyway. Nevertheless this commit adds logging (level INFO) to gprs_ns_tx and gprs_ns_msgb_alloc. The definition of the latter has been moved from the header file to gprs_ns.c. Fixes: Coverity CID 1040678, 1040679, 1040680, 1040681, 1040682, 1040683, 1040684, 1040686, 1040687, 1040688, 1111545, 1240203, 1240204 Sponsored-by: On-Waves ehf
Diffstat (limited to 'src/gb/gprs_ns.c')
-rw-r--r--src/gb/gprs_ns.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/gb/gprs_ns.c b/src/gb/gprs_ns.c
index 27968e30..827d09d7 100644
--- a/src/gb/gprs_ns.c
+++ b/src/gb/gprs_ns.c
@@ -131,6 +131,17 @@ static const struct rate_ctr_group_desc nsvc_ctrg_desc = {
LOGP(DNS, LOGL_ERROR, "TX failed (%d) to peer %s\n", \
rc, gprs_ns_ll_str(nsvc));
+struct msgb *gprs_ns_msgb_alloc(void)
+{
+ struct msgb *msg = msgb_alloc_headroom(NS_ALLOC_SIZE, NS_ALLOC_HEADROOM,
+ "GPRS/NS");
+ if (!msg) {
+ LOGP(DNS, LOGL_ERROR, "Failed to allocate NS message of size %d\n",
+ NS_ALLOC_SIZE);
+ }
+ return msg;
+}
+
/*! \brief Lookup struct gprs_nsvc based on NSVCI
* \param[in] nsi NS instance in which to search
@@ -298,9 +309,17 @@ static int gprs_ns_tx(struct gprs_nsvc *nsvc, struct msgb *msg)
switch (nsvc->ll) {
case GPRS_NS_LL_UDP:
ret = nsip_sendmsg(nsvc, msg);
+ if (ret < 0)
+ LOGP(DNS, LOGL_INFO,
+ "failed to send NS message via UDP: %s\n",
+ strerror(-ret));
break;
case GPRS_NS_LL_FR_GRE:
ret = gprs_ns_frgre_sendmsg(nsvc, msg);
+ if (ret < 0)
+ LOGP(DNS, LOGL_INFO,
+ "failed to send NS message via FR/GRE: %s\n",
+ strerror(-ret));
break;
default:
LOGP(DNS, LOGL_ERROR, "unsupported NS linklayer %u\n", nsvc->ll);