61 lines
1.9 KiB
Diff
61 lines
1.9 KiB
Diff
diff -up dhcp-4.1.1/client/dhclient.c.backoff dhcp-4.1.1/client/dhclient.c
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--- dhcp-4.1.1/client/dhclient.c.backoff 2010-01-20 17:14:37.000000000 +0100
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+++ dhcp-4.1.1/client/dhclient.c 2010-01-20 17:14:37.000000000 +0100
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@@ -1187,6 +1187,7 @@ void state_init (cpp)
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void *cpp;
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{
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struct client_state *client = cpp;
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+ enum dhcp_state init_state = client->state;
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ASSERT_STATE(state, S_INIT);
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@@ -1199,9 +1200,16 @@ void state_init (cpp)
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client -> first_sending = cur_time;
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client -> interval = client -> config -> initial_interval;
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- /* Add an immediate timeout to cause the first DHCPDISCOVER packet
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- to go out. */
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- send_discover (client);
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+ if (init_state != S_DECLINED) {
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+ /* Add an immediate timeout to cause the first DHCPDISCOVER packet
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+ to go out. */
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+ send_discover(client);
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+ } else {
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+ /* We've received an OFFER and it has been DECLINEd by dhclient-script.
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+ * wait for a random time between 1 and backoff_cutoff seconds before
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+ * trying again. */
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+ add_timeout(cur_time + ((1 + (random() >> 2)) % client->config->backoff_cutoff), send_discover, client, 0, 0);
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+ }
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}
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/*
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@@ -1480,6 +1488,7 @@ void bind_lease (client)
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send_decline (client);
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destroy_client_lease (client -> new);
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client -> new = (struct client_lease *)0;
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+ client -> state = S_DECLINED;
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state_init (client);
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return;
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}
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@@ -3689,6 +3698,7 @@ void client_location_changed ()
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case S_INIT:
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case S_REBINDING:
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case S_STOPPED:
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+ case S_DECLINED:
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break;
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}
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client -> state = S_INIT;
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diff -up dhcp-4.1.1/includes/dhcpd.h.backoff dhcp-4.1.1/includes/dhcpd.h
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--- dhcp-4.1.1/includes/dhcpd.h.backoff 2010-01-20 17:14:37.000000000 +0100
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+++ dhcp-4.1.1/includes/dhcpd.h 2010-01-20 17:14:37.000000000 +0100
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@@ -1017,7 +1017,8 @@ enum dhcp_state {
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S_BOUND = 5,
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S_RENEWING = 6,
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S_REBINDING = 7,
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- S_STOPPED = 8
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+ S_STOPPED = 8,
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+ S_DECLINED = 9
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};
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/* Authentication and BOOTP policy possibilities (not all values work
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