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authorNicholas Bellinger <nab@linux-iscsi.org>2012-12-04 23:43:57 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-21 11:45:24 -0800
commit92a7389317838f3338466df0c0e3d23ad33cb1f4 (patch)
tree6ccd124313aa8d7abbf16fd5aab09af8d80b8acb /include
parentced8dfbc6b44c7b14204a13ff95f22bdee52578f (diff)
target: Add link_magic for fabric allow_link destination target_items
commit 0ff8754981261a80f4b77db2536dfea92c2d4539 upstream. This patch adds [dev,lun]_link_magic value assignment + checks within generic target_fabric_port_link() and target_fabric_mappedlun_link() code to ensure destination config_item *target_item sent from configfs_symlink() -> config_item_operations->allow_link() is the underlying se_device->dev_group and se_lun->lun_group that we expect to symlink. Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: CAI Qian <caiqian@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/target/target_core_base.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 3ad5b33ee328..569c28236b09 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -779,6 +779,8 @@ struct se_subsystem_dev {
};
struct se_device {
+#define SE_DEV_LINK_MAGIC 0xfeeddeef
+ u32 dev_link_magic;
/* RELATIVE TARGET PORT IDENTIFER Counter */
u16 dev_rpti_counter;
/* Used for SAM Task Attribute ordering */
@@ -869,6 +871,8 @@ struct se_port_stat_grps {
};
struct se_lun {
+#define SE_LUN_LINK_MAGIC 0xffff7771
+ u32 lun_link_magic;
/* See transport_lun_status_table */
enum transport_lun_status_table lun_status;
u32 lun_access;