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authorKay Sievers <kay@vrfy.org>2014-05-24 10:38:32 +0800
committerKay Sievers <kay@vrfy.org>2014-05-24 10:45:44 +0800
commit82d115d9abf5b2666e5561450fbb17c9044a0b33 (patch)
tree0e1fa22dd6f5cd9514bfbf3a541248459aa0d821 /src/timedate/timedated.c
parent609896125cb89cac2fcd5b80b532de97d7a64c0a (diff)
timedated: refuse manual system time updates when automatic timesync is enabled
Diffstat (limited to 'src/timedate/timedated.c')
-rw-r--r--src/timedate/timedated.c46
1 files changed, 13 insertions, 33 deletions
diff --git a/src/timedate/timedated.c b/src/timedate/timedated.c
index 0e74c25b05..204031fe77 100644
--- a/src/timedate/timedated.c
+++ b/src/timedate/timedated.c
@@ -37,6 +37,7 @@
#include "fileio-label.h"
#include "label.h"
#include "bus-util.h"
+#include "bus-errors.h"
#include "event-util.h"
#define NULL_ADJTIME_UTC "0.0 0 0\n0\nUTC\n"
@@ -45,25 +46,15 @@
typedef struct Context {
char *zone;
bool local_rtc;
- unsigned can_ntp;
- unsigned use_ntp;
+ bool can_ntp;
+ bool use_ntp;
Hashmap *polkit_registry;
} Context;
-static void context_reset(Context *c) {
- assert(c);
-
- free(c->zone);
- c->zone = NULL;
-
- c->local_rtc = false;
- c->can_ntp = c->use_ntp = -1;
-}
-
static void context_free(Context *c, sd_bus *bus) {
assert(c);
- context_reset(c);
+ free(c->zone);
bus_verify_polkit_async_registry_free(bus, c->polkit_registry);
}
@@ -121,8 +112,6 @@ static int context_read_data(Context *c) {
assert(c);
- context_reset(c);
-
r = readlink_malloc("/etc/localtime", &t);
if (r < 0) {
if (r == -EINVAL)
@@ -323,18 +312,12 @@ static int context_read_ntp(Context *c, sd_bus *bus) {
if (r < 0)
return r;
- c->can_ntp = 1;
- c->use_ntp =
- streq(s, "enabled") ||
- streq(s, "enabled-runtime");
+ c->can_ntp = true;
+ c->use_ntp = STR_IN_SET(s, "enabled", "enabled-runtime");
return 0;
}
- /* NTP is not installed. */
- c->can_ntp = 0;
- c->use_ntp = 0;
-
return 0;
}
@@ -664,6 +647,9 @@ static int method_set_time(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bu
assert(m);
assert(c);
+ if (c->use_ntp)
+ return sd_bus_error_setf(error, BUS_ERROR_AUTOMATIC_TIME_SYNC_ENABLED, "Automatic time synchronization is enabled");
+
r = sd_bus_message_read(m, "xbb", &utc, &relative, &interactive);
if (r < 0)
return r;
@@ -756,9 +742,9 @@ static int method_set_ntp(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus
static const sd_bus_vtable timedate_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("Timezone", "s", NULL, offsetof(Context, zone), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_PROPERTY("LocalRTC", "b", NULL, offsetof(Context, local_rtc), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
- SD_BUS_PROPERTY("CanNTP", "b", bus_property_get_tristate, offsetof(Context, can_ntp), 0),
- SD_BUS_PROPERTY("NTP", "b", bus_property_get_tristate, offsetof(Context, use_ntp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("LocalRTC", "b", bus_property_get_bool, offsetof(Context, local_rtc), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
+ SD_BUS_PROPERTY("CanNTP", "b", bus_property_get_bool, offsetof(Context, can_ntp), 0),
+ SD_BUS_PROPERTY("NTP", "b", bus_property_get_bool, offsetof(Context, use_ntp), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("NTPSynchronized", "b", property_get_ntp_sync, 0, 0),
SD_BUS_PROPERTY("TimeUSec", "t", property_get_time, 0, 0),
SD_BUS_PROPERTY("RTCTimeUSec", "t", property_get_rtc_time, 0, 0),
@@ -808,13 +794,7 @@ static int connect_bus(Context *c, sd_event *event, sd_bus **_bus) {
}
int main(int argc, char *argv[]) {
- Context context = {
- .zone = NULL,
- .local_rtc = false,
- .can_ntp = -1,
- .use_ntp = -1,
- };
-
+ Context context = {};
_cleanup_event_unref_ sd_event *event = NULL;
_cleanup_bus_unref_ sd_bus *bus = NULL;
int r;