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authorLennart Poettering <lennart@poettering.net>2015-08-26 19:19:32 +0200
committerLennart Poettering <lennart@poettering.net>2015-08-26 20:44:20 +0200
commit8eb9058dc1f99a5eb9b8726a978fcc0720837a10 (patch)
tree9e2670f8a77d6fd01d763c7097908f6824694571 /src/network/networkd-link.c
parent43f447b121b38c01a7c5626a51cc571a822250b8 (diff)
dhcp,network: implement RFC 4833 (DHCP Timezone option)
This one is simply to add: encode the tzdata timezone in the DHCP options and optionally make use of it.
Diffstat (limited to 'src/network/networkd-link.c')
-rw-r--r--src/network/networkd-link.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index cc9dc393c6..c179aafebb 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -672,6 +672,27 @@ static int link_enter_set_addresses(Link *link) {
return r;
*/
+ if (link->network->dhcp_server_emit_timezone) {
+ _cleanup_free_ char *buffer = NULL;
+ const char *tz;
+
+ if (link->network->dhcp_server_timezone)
+ tz = link->network->dhcp_server_timezone;
+ else {
+ r = get_timezone(&buffer);
+ if (r < 0)
+ log_warning_errno(r, "Failed to determine timezone: %m");
+ else
+ tz = buffer;
+ }
+
+ if (tz) {
+ r = sd_dhcp_server_set_timezone(link->dhcp_server, tz);
+ if (r < 0)
+ return r;
+ }
+ }
+
r = sd_dhcp_server_start(link->dhcp_server);
if (r < 0) {
log_link_warning_errno(link, r, "Could not start DHCPv4 server instance: %m");
@@ -2414,6 +2435,14 @@ int link_save(Link *link) {
}
if (link->dhcp_lease) {
+ const char *tz = NULL;
+
+ r = sd_dhcp_lease_get_timezone(link->dhcp_lease, &tz);
+ if (r >= 0)
+ fprintf(f, "TIMEZONE=%s\n", tz);
+ }
+
+ if (link->dhcp_lease) {
assert(link->network);
r = sd_dhcp_lease_save(link->dhcp_lease, link->lease_file);