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authorJacob Erlbeck <jerlbeck@sysmocom.de>2014-09-19 16:34:01 +0200
committerHolger Hans Peter Freyther <holger@moiji-mobile.com>2014-10-09 17:46:34 +0200
commitc6807c4405d6dcc42d9dab23fa5f259464fdfc32 (patch)
tree006aeab7ee384db356ac2520b5ee1db46884ed39 /openbsc/src/gprs/gb_proxy.c
parentba6267f05acbea1600360f40bd390a25cae50fbe (diff)
gbproxy: Use monotonic system time instead of time-of-day
Currently time() is used for age calculations. This time source may jump either forwards or backwards in time (NTP update, leap seconds). This patch replaces the use of time() by using clock_gettime(CLOCK_MONOTONIC) instead. Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/src/gprs/gb_proxy.c')
-rw-r--r--openbsc/src/gprs/gb_proxy.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c
index 130ab4e..9aeb010 100644
--- a/openbsc/src/gprs/gb_proxy.c
+++ b/openbsc/src/gprs/gb_proxy.c
@@ -518,6 +518,7 @@ static int gbprox_process_bssgp_ul(struct gbproxy_config *cfg,
int rc;
int len_change = 0;
time_t now;
+ struct timespec ts = {0,};
struct gbproxy_link_info *link_info = NULL;
uint32_t sgsn_nsei = cfg->nsip_sgsn_nsei;
@@ -549,7 +550,9 @@ static int gbprox_process_bssgp_ul(struct gbproxy_config *cfg,
if (!peer)
return 0;
- now = time(NULL);
+
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ now = ts.tv_sec;
gbprox_update_current_raid(parse_ctx.bssgp_raid_enc, peer,
parse_ctx.llc_msg_name);
@@ -611,6 +614,7 @@ static void gbprox_process_bssgp_dl(struct gbproxy_config *cfg,
int rc;
int len_change = 0;
time_t now;
+ struct timespec ts = {0,};
struct gbproxy_link_info *link_info = NULL;
if (!cfg->core_mcc && !cfg->core_mnc && !cfg->core_apn &&
@@ -640,7 +644,8 @@ static void gbprox_process_bssgp_dl(struct gbproxy_config *cfg,
if (!peer)
return;
- now = time(NULL);
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ now = ts.tv_sec;
if (parse_ctx.g48_hdr) {
switch (parse_ctx.g48_hdr->msg_type) {