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Stefan Sperling gerrit-no-reply at lists.osmocom.orgStefan Sperling has uploaded this change for review. ( https://gerrit.osmocom.org/12202
Change subject: display last location update timestamp in vty
......................................................................
display last location update timestamp in vty
Read the subscriber's last location update timestamp from the
database and display it in the output of 'show subscriber'.
For example:
OsmoHLR> show subscriber id 1
ID: 1
IMSI: 123456789000000
MSISDN: 543210123456789
VLR number: 712
SGSN number: 5952
last LU seen: Fri Dec 7 11:30:51 2018 UTC
While the database stores the timestamp as a string, we
convert the timestamp into time_t for internal use.
This allows for flexible potential use of the timestamp
in contexts other than the VTY in the future.
The timestamp displayed in the VTY is created with ctime_r(3).
It does not match the format of the raw string in the database:
sqlite> select id,last_lu_seen from subscriber;
1|2018-12-07 11:30:51
Related: OS#2838
Change-Id: Ie180c434f02ffec0d4b2f651a73258a8126b2e1a
---
M src/db.h
M src/db_hlr.c
M src/hlr_vty_subscr.c
3 files changed, 44 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-hlr refs/changes/02/12202/1
diff --git a/src/db.h b/src/db.h
index 5129b8d..ae592fb 100644
--- a/src/db.h
+++ b/src/db.h
@@ -84,8 +84,14 @@
uint32_t lmsi;
bool ms_purged_cs;
bool ms_purged_ps;
+ time_t last_lu_seen;
};
+/* A format string for use with strptime(3). This format string is
+ * used to parse the last_lu_seen column stored in the HLR database.
+ * See https://sqlite.org/lang_datefunc.html, function datetime(). */
+#define DB_LAST_LU_SEEN_FMT "%Y-%m-%d %H:%M:%S"
+
/* Like struct osmo_sub_auth_data, but the keys are in hexdump representation.
* This is useful because SQLite requires them in hexdump format, and callers
* like the VTY and CTRL interface also have them available as hexdump to begin
diff --git a/src/db_hlr.c b/src/db_hlr.c
index 342698e..1b0644f 100644
--- a/src/db_hlr.c
+++ b/src/db_hlr.c
@@ -17,6 +17,11 @@
*
*/
+#define _POSIX_C_SOURCE 200809L /* for strptime(3) */
+/* These are needed as well due to the above _POSIX_C_SOURCE definition: */
+#define _DEFAULT_SOURCE /* for struct timezone */
+#define _XOPEN_SOURCE /* for clockid_t */
+
#include <string.h>
#include <errno.h>
#include <inttypes.h>
@@ -387,6 +392,7 @@
{
int rc;
int ret = 0;
+ const char *last_lu_seen_str;
/* execute the statement */
rc = sqlite3_step(stmt);
@@ -419,6 +425,21 @@
subscr->lmsi = sqlite3_column_int(stmt, 10);
subscr->ms_purged_cs = sqlite3_column_int(stmt, 11);
subscr->ms_purged_ps = sqlite3_column_int(stmt, 12);
+ last_lu_seen_str = (const char *)sqlite3_column_text(stmt, 13);
+ if (last_lu_seen_str && last_lu_seen_str[0] != '\0') {
+ struct tm tm;
+ if (strptime(last_lu_seen_str, DB_LAST_LU_SEEN_FMT, &tm) == NULL) {
+ LOGP(DAUC, LOGL_ERROR, "Cannot parse last LU timestamp '%s' of subscriber with IMSI='%s': %s\n",
+ last_lu_seen_str, subscr->imsi, strerror(errno));
+ } else {
+ subscr->last_lu_seen = mktime(&tm);
+ if (subscr->last_lu_seen == -1) {
+ LOGP(DAUC, LOGL_ERROR, "Cannot convert LU timestamp '%s' to time_t: %s\n",
+ last_lu_seen_str, strerror(errno));
+ subscr->last_lu_seen = 0;
+ }
+ }
+ }
out:
db_remove_reset(stmt);
diff --git a/src/hlr_vty_subscr.c b/src/hlr_vty_subscr.c
index bc6f6a5..edfd89b 100644
--- a/src/hlr_vty_subscr.c
+++ b/src/hlr_vty_subscr.c
@@ -20,6 +20,8 @@
#include <inttypes.h>
#include <string.h>
#include <errno.h>
+#include <sys/types.h>
+#include <time.h>
#include <osmocom/gsm/gsm23003.h>
#include <osmocom/vty/vty.h>
@@ -33,11 +35,24 @@
#define hexdump_buf(buf) osmo_hexdump_nospc((void*)buf, sizeof(buf))
+static char *
+get_datestr(time_t *t, char *datebuf)
+{
+ char *p, *s = ctime_r(t, datebuf);
+
+ /* Strip trailing newline. */
+ p = strchr(s, '\n');
+ if (p)
+ *p = '\0';
+ return s;
+}
+
static void subscr_dump_full_vty(struct vty *vty, struct hlr_subscriber *subscr)
{
int rc;
struct osmo_sub_auth_data aud2g;
struct osmo_sub_auth_data aud3g;
+ char datebuf[26]; /* for ctime_r(3) */
vty_out(vty, " ID: %"PRIu64"%s", subscr->id, VTY_NEWLINE);
@@ -63,6 +78,8 @@
vty_out(vty, " PS disabled%s", VTY_NEWLINE);
if (subscr->ms_purged_ps)
vty_out(vty, " PS purged%s", VTY_NEWLINE);
+ if (subscr->last_lu_seen)
+ vty_out(vty, " last LU seen: %s UTC%s", get_datestr(&subscr->last_lu_seen, datebuf), VTY_NEWLINE);
if (!*subscr->imsi)
return;
--
To view, visit https://gerrit.osmocom.org/12202
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Gerrit-Project: osmo-hlr
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ie180c434f02ffec0d4b2f651a73258a8126b2e1a
Gerrit-Change-Number: 12202
Gerrit-PatchSet: 1
Gerrit-Owner: Stefan Sperling <stsp at stsp.name>
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