diff options
author | Chris Leech <cleech@redhat.com> | 2013-08-12 22:26:28 +0400 |
---|---|---|
committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2013-08-13 07:31:53 +0400 |
commit | dfecf611a1bb46dfe19fc5329a23ef12c1f0591d (patch) | |
tree | cbde70d4bbba8b1f259e9e5643d9c312440b65d0 /drivers/target/iscsi/iscsi_target_stat.c | |
parent | de04a8aa6b292b9c7e559794cb50e4296b193002 (diff) |
iscsi-target: ST response on IN6ADDR_ANY socket
Odd little issue, found that if you create an IPv6 portal bound to the
IN6ADDR_ANY wildcard address it will accept IPv4 connections (as long as
bindv6only isn't set globally) but respond to SendTargets requests with
an IPv4-mapped IPv6 address.
Example over loopback:
In targetcli create a wildcard IPv6 portal
/iscsi/iqn.../portals/> create ::
Which should create a portal [::]:3260
Initiate SendTargets discovery to the portal using an IPv4 address
# iscsiadm -m discovery -t st -p 127.0.0.1
The response formats TargetAddress as [::ffff:127.0.0.1]:3260,1
This still works and uses v4 on the network between two v6 sockets, but
only if the initiator supports IPv6 with v4-mapped addresses.
This change detects v4-mapped address on v6 sockets for the wildcard
case, and instead formats the TargetAddress response as an IPv4 address.
In order to not further complicate iscsit_build_sendtargets_response,
I've actually simplified it by moving the bracket wrapping of IPv6
address into iscsit_accept_np where local_ip and login_ip strings are
set. That also simplifies iscsi_stat_tgt_attr_show_attr_fail_intr_addr.
Side effect of the string format change is that
lio_target_nacl_show_info will now print login_ip bracket wrapped for
IPv6 connections, as will a few debug prints.
Signed-off-by: Chris Leech <cleech@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target/iscsi/iscsi_target_stat.c')
-rw-r--r-- | drivers/target/iscsi/iscsi_target_stat.c | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c index 464b4206a51e..899bdb423ff3 100644 --- a/drivers/target/iscsi/iscsi_target_stat.c +++ b/drivers/target/iscsi/iscsi_target_stat.c @@ -432,13 +432,7 @@ static ssize_t iscsi_stat_tgt_attr_show_attr_fail_intr_addr( int ret; spin_lock(&lstat->lock); - if (lstat->last_intr_fail_ip_family == AF_INET6) { - ret = snprintf(page, PAGE_SIZE, "[%s]\n", - lstat->last_intr_fail_ip_addr); - } else { - ret = snprintf(page, PAGE_SIZE, "%s\n", - lstat->last_intr_fail_ip_addr); - } + ret = snprintf(page, PAGE_SIZE, "%s\n", lstat->last_intr_fail_ip_addr); spin_unlock(&lstat->lock); return ret; |