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From f113ad7822fcd691e72f61cab7412595951222db Mon Sep 17 00:00:00 2001
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From: Tomas Hozza <thozza@redhat.com>
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Date: Wed, 3 Apr 2013 10:20:18 +0200
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Subject: [PATCH] Expose next-server DHCPv4 option to dhclient script
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Currently dhclient does not exposes next-server option
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to the dhclient script. this patch fixes this.
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Signed-off-by: Tomas Hozza <thozza@redhat.com>
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---
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client/dhclient.c | 14 +++++++++++---
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includes/dhcpd.h | 2 +-
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2 files changed, 12 insertions(+), 4 deletions(-)
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diff --git a/client/dhclient.c b/client/dhclient.c
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index 551ccbf..e8df320 100644
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--- a/client/dhclient.c
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+++ b/client/dhclient.c
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@@ -993,7 +993,7 @@ void state_selecting (cpp)
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client -> state = S_REQUESTING;
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/* Bind to the address we received. */
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- bind_lease (client);
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+ bind_lease (client, NULL);
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return;
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}
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@@ -1183,11 +1183,12 @@ void dhcpack (packet)
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if (client -> new -> rebind < cur_time)
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client -> new -> rebind = TIME_MAX;
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- bind_lease (client);
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+ bind_lease (client, &packet -> raw -> siaddr);
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}
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-void bind_lease (client)
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+void bind_lease (client, siaddr)
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struct client_state *client;
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+ struct in_addr *siaddr;
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{
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struct timeval tv;
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@@ -1209,6 +1210,13 @@ void bind_lease (client)
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if (client -> alias)
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script_write_params (client, "alias_", client -> alias);
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+ if (siaddr) {
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+ char buf[INET_ADDRSTRLEN];
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+
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+ if (inet_ntop (AF_INET, (void *) siaddr, buf, sizeof (buf)))
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+ client_envadd (client, "new_", "next_server", "%s", buf);
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+ }
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+
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/* If the BOUND/RENEW code detects another machine using the
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offered address, it exits nonzero. We need to send a
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DHCPDECLINE and toss the lease. */
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diff --git a/includes/dhcpd.h b/includes/dhcpd.h
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index 12ed2ba..4e93e68 100644
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--- a/includes/dhcpd.h
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+++ b/includes/dhcpd.h
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@@ -2712,7 +2712,7 @@ void state_bound (void *);
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void state_stop (void *);
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void state_panic (void *);
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-void bind_lease (struct client_state *);
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+void bind_lease (struct client_state *, struct in_addr *);
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void make_client_options (struct client_state *,
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struct client_lease *, u_int8_t *,
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--
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1.8.1.4
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