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iscsi: use IP_FREEBIND socket option

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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>
This commit is contained in:
Dax Kelson 2012-02-03 23:40:25 -07:00 committed by Nicholas Bellinger
parent 5c55125f47
commit 9f9ef6d3c0
1 changed files with 8 additions and 0 deletions
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8
drivers/target/iscsi/iscsi_target_login.c
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@ -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);