Blame dhcp-3.0.5-dhclient-decline-backoff.patch
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--- dhcp-3.0.5/client/dhclient.c.decline 2007-03-30 15:29:58.000000000 -0400
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+++ dhcp-3.0.5/client/dhclient.c 2007-03-30 15:50:25.000000000 -0400
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@@ -934,6 +934,7 @@
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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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@@ -946,9 +947,16 @@
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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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/* state_selecting is called when one or more DHCPOFFER packets have been
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@@ -1215,6 +1223,7 @@
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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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@@ -3183,6 +3192,7 @@
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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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--- dhcp-3.0.5/includes/dhcpd.h.decline 2007-03-30 15:30:14.000000000 -0400
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+++ dhcp-3.0.5/includes/dhcpd.h 2007-03-30 15:50:53.000000000 -0400
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@@ -704,7 +704,8 @@
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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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