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SubjectRe: [PATCH -mm 2/3] [LSM] Stacking support for inode_init_security
This patch, against the 2.6.13-rc6-mm1 stacker, defines the
inode_init_security() hook.

thanks,
-serge

Signed-off-by: Serge Hallyn <serue@us.ibm.com>
--
stacker.c | 35 +++++++++++++++++++++++++++++++++++
1 files changed, 35 insertions(+)

Index: linux-2.6.13-rc6-mm1/security/stacker.c
===================================================================
--- linux-2.6.13-rc6-mm1.orig/security/stacker.c 2005-08-19 17:00:39.000000000 -0500
+++ linux-2.6.13-rc6-mm1/security/stacker.c 2005-08-19 17:01:54.000000000 -0500
@@ -443,6 +443,40 @@ static void stacker_inode_free_security
security_disown_value(h);
}

+static int stacker_inode_init_security(struct inode *inode, struct inode *dir,
+ struct list_head *head)
+{
+ int ret, succ_ret = -EOPNOTSUPP;
+ struct xattr_data *p, *n;
+ struct module_entry *m;
+
+ rcu_read_lock();
+ stack_for_each_entry(m, &stacked_modules, lsm_list) {
+ if (!m->module_operations.inode_init_security)
+ continue;
+ rcu_read_unlock();
+ ret = m->module_operations.inode_init_security(inode,dir,head);
+ rcu_read_lock();
+ if (ret && ret != -EOPNOTSUPP)
+ goto out_free_data;
+ if (ret == 0)
+ succ_ret = 0;
+ }
+ rcu_read_unlock();
+ return succ_ret;
+
+out_free_data:
+ if (!head)
+ return ret;
+ list_for_each_entry_safe(p, n, head, list) {
+ list_del(&p->list);
+ kfree(p->value);
+ kfree(p->name);
+ kfree(p);
+ }
+ return ret;
+}
+
static int stacker_inode_create (struct inode *inode, struct dentry *dentry,
int mask)
{
@@ -1315,6 +1349,7 @@ static struct security_operations stacke

.inode_alloc_security = stacker_inode_alloc_security,
.inode_free_security = stacker_inode_free_security,
+ .inode_init_security = stacker_inode_init_security,
.inode_create = stacker_inode_create,
.inode_link = stacker_inode_link,
.inode_unlink = stacker_inode_unlink,
-
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