From 9f9ef6d3c08319defc29e4cf6ef2868d15ed0cc3 Mon Sep 17 00:00:00 2001
From: Dax Kelson <dkelson@gurulabs.com>
Date: Fri, 3 Feb 2012 23:40:25 -0700
Subject: [PATCH] iscsi: use IP_FREEBIND socket option
Use IP_FREEBIND socket option so that iscsi portal configuration with
explicit IP addresses can happen during boot, before network interfaces
have been assigned IPs.
This is especially important on systemd based Linux boxes where system
boot happens asynchronously and non-trivial configuration must be done
to get targetcli.service to start synchronously after the network is
configured.
Reference:
http://lists.fedoraproject.org/pipermail/devel/2011-October/158025.html
Signed-off-by: Dax Kelson <dkelson@gurulabs.com>
Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org>
Cc: "Andy Grover" <agrover@redhat.com>
Cc: "Lennart Poettering" <lennart@poettering.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
drivers/target/iscsi/iscsi_target_login.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index ec47a7c5966e..38cb7ce8469e 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -842,6 +842,14 @@ int iscsi_target_setup_login_socket(
goto fail;
}
+ ret = kernel_setsockopt(sock, IPPROTO_IP, IP_FREEBIND,
+ (char *)&opt, sizeof(opt));
+ if (ret < 0) {
+ pr_err("kernel_setsockopt() for IP_FREEBIND"
+ " failed\n");
+ goto fail;
+ }
+
ret = kernel_bind(sock, (struct sockaddr *)&np->np_sockaddr, len);
if (ret < 0) {
pr_err("kernel_bind() failed: %d\n", ret);
--
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