]> git.ipfire.org Git - people/arne_f/ipfire-3.x.git/blame - dhcp/patches/0006-dhcp-dhclient-decline-backoff.patch
dhcp: Update to 4.3.5b1
[people/arne_f/ipfire-3.x.git] / dhcp / patches / 0006-dhcp-dhclient-decline-backoff.patch
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1diff -up dhcp-4.3.4/client/dhclient.c.backoff dhcp-4.3.4/client/dhclient.c
2--- dhcp-4.3.4/client/dhclient.c.backoff 2016-04-29 12:16:26.976245611 +0200
3+++ dhcp-4.3.4/client/dhclient.c 2016-04-29 12:16:26.979245609 +0200
4@@ -1423,6 +1423,8 @@ void state_init (cpp)
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5 void *cpp;
6 {
7 struct client_state *client = cpp;
8+ enum dhcp_state init_state = client->state;
9+ struct timeval tv;
10
11 ASSERT_STATE(state, S_INIT);
12
d8feb2d7 13@@ -1435,9 +1437,18 @@ void state_init (cpp)
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14 client -> first_sending = cur_time;
15 client -> interval = client -> config -> initial_interval;
16
17- /* Add an immediate timeout to cause the first DHCPDISCOVER packet
18- to go out. */
19- send_discover (client);
20+ if (init_state != S_DECLINED) {
21+ /* Add an immediate timeout to cause the first DHCPDISCOVER packet
22+ to go out. */
23+ send_discover(client);
24+ } else {
25+ /* We've received an OFFER and it has been DECLINEd by dhclient-script.
26+ * wait for a random time between 1 and backoff_cutoff seconds before
27+ * trying again. */
28+ tv . tv_sec = cur_time + ((1 + (random() >> 2)) % client->config->backoff_cutoff);
29+ tv . tv_usec = 0;
30+ add_timeout(&tv, send_discover, client, 0, 0);
31+ }
32 }
33
34 /*
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35@@ -1734,6 +1745,7 @@ void bind_lease (client)
36 "try (declined). Exiting.");
37 exit(2);
38 } else {
39+ client -> state = S_DECLINED;
40 state_init(client);
41 return;
42 }
43@@ -4626,6 +4638,7 @@ void client_location_changed ()
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44 case S_INIT:
45 case S_REBINDING:
46 case S_STOPPED:
47+ case S_DECLINED:
48 break;
49 }
50 client -> state = S_INIT;
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51diff -up dhcp-4.3.4/includes/dhcpd.h.backoff dhcp-4.3.4/includes/dhcpd.h
52--- dhcp-4.3.4/includes/dhcpd.h.backoff 2016-04-29 12:16:26.980245609 +0200
53+++ dhcp-4.3.4/includes/dhcpd.h 2016-04-29 12:17:30.893203533 +0200
54@@ -1171,7 +1171,8 @@ enum dhcp_state {
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55 S_BOUND = 5,
56 S_RENEWING = 6,
57 S_REBINDING = 7,
58- S_STOPPED = 8
59+ S_STOPPED = 8,
60+ S_DECLINED = 9
61 };
62
d8feb2d7 63 /* Possible pending client operations. */