dhcp/dhcp-dhclient-decline-backoff.patch
Jiri Popelka 7b69e548fb 4.3.1b1
2014-07-10 19:01:31 +02:00

64 lines
2.0 KiB
Diff

diff -up dhcp-4.3.1b1/client/dhclient.c.JwFUZj dhcp-4.3.1b1/client/dhclient.c
--- dhcp-4.3.1b1/client/dhclient.c.JwFUZj 2014-07-10 17:38:50.511265091 +0200
+++ dhcp-4.3.1b1/client/dhclient.c 2014-07-10 17:39:16.164901267 +0200
@@ -1281,6 +1281,8 @@ void state_init (cpp)
void *cpp;
{
struct client_state *client = cpp;
+ enum dhcp_state init_state = client->state;
+ struct timeval tv;
ASSERT_STATE(state, S_INIT);
@@ -1293,9 +1295,18 @@ void state_init (cpp)
client -> first_sending = cur_time;
client -> interval = client -> config -> initial_interval;
- /* Add an immediate timeout to cause the first DHCPDISCOVER packet
- to go out. */
- send_discover (client);
+ if (init_state != S_DECLINED) {
+ /* Add an immediate timeout to cause the first DHCPDISCOVER packet
+ to go out. */
+ send_discover(client);
+ } else {
+ /* We've received an OFFER and it has been DECLINEd by dhclient-script.
+ * wait for a random time between 1 and backoff_cutoff seconds before
+ * trying again. */
+ tv . tv_sec = cur_time + ((1 + (random() >> 2)) % client->config->backoff_cutoff);
+ tv . tv_usec = 0;
+ add_timeout(&tv, send_discover, client, 0, 0);
+ }
}
/*
@@ -1592,6 +1603,7 @@ void bind_lease (client)
"try (declined). Exiting.");
exit(2);
} else {
+ client -> state = S_DECLINED;
state_init(client);
return;
}
@@ -4059,6 +4071,7 @@ void client_location_changed ()
case S_INIT:
case S_REBINDING:
case S_STOPPED:
+ case S_DECLINED:
break;
}
client -> state = S_INIT;
diff -up dhcp-4.3.1b1/includes/dhcpd.h.JwFUZj dhcp-4.3.1b1/includes/dhcpd.h
--- dhcp-4.3.1b1/includes/dhcpd.h.JwFUZj 2014-07-10 17:38:26.941599360 +0200
+++ dhcp-4.3.1b1/includes/dhcpd.h 2014-07-10 17:38:50.526264878 +0200
@@ -1087,7 +1087,8 @@ enum dhcp_state {
S_BOUND = 5,
S_RENEWING = 6,
S_REBINDING = 7,
- S_STOPPED = 8
+ S_STOPPED = 8,
+ S_DECLINED = 9
};
/* Authentication and BOOTP policy possibilities (not all values work