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authorCasey Schaufler <casey@schaufler-ca.com>2024-07-11 00:32:29 +0300
committerPaul Moore <paul@paul-moore.com>2024-07-29 23:54:52 +0300
commit66de33a0bbb59ef3909d2c65dbbb7fc503d573bd (patch)
tree9f6269a38c23b93663e5927567a14628017679cf /security/security.c
parenta39c0f77dbbe083f3eec6c3b32d90f168f7575eb (diff)
downloadlinux-66de33a0bbb59ef3909d2c65dbbb7fc503d573bd.tar.xz
lsm: infrastructure management of the infiniband blob
Move management of the infiniband security blob out of the individual security modules and into the LSM infrastructure. The security modules tell the infrastructure how much space they require at initialization. There are no longer any modules that require the ib_free() hook. The hook definition has been removed. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Reviewed-by: John Johansen <john.johansen@canonical.com> [PM: subject tweak, selinux style fixes] Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/security.c')
-rw-r--r--security/security.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/security/security.c b/security/security.c
index 137a1f7e0e8b..80dc58d60aab 100644
--- a/security/security.c
+++ b/security/security.c
@@ -219,6 +219,7 @@ static void __init lsm_set_blob_sizes(struct lsm_blob_sizes *needed)
lsm_set_blob_size(&needed->lbs_cred, &blob_sizes.lbs_cred);
lsm_set_blob_size(&needed->lbs_file, &blob_sizes.lbs_file);
+ lsm_set_blob_size(&needed->lbs_ib, &blob_sizes.lbs_ib);
/*
* The inode blob gets an rcu_head in addition to
* what the modules might need.
@@ -402,6 +403,7 @@ static void __init ordered_lsm_init(void)
init_debug("cred blob size = %d\n", blob_sizes.lbs_cred);
init_debug("file blob size = %d\n", blob_sizes.lbs_file);
+ init_debug("ib blob size = %d\n", blob_sizes.lbs_ib);
init_debug("inode blob size = %d\n", blob_sizes.lbs_inode);
init_debug("ipc blob size = %d\n", blob_sizes.lbs_ipc);
#ifdef CONFIG_KEYS
@@ -5096,7 +5098,18 @@ EXPORT_SYMBOL(security_ib_endport_manage_subnet);
*/
int security_ib_alloc_security(void **sec)
{
- return call_int_hook(ib_alloc_security, sec);
+ int rc;
+
+ rc = lsm_blob_alloc(sec, blob_sizes.lbs_ib, GFP_KERNEL);
+ if (rc)
+ return rc;
+
+ rc = call_int_hook(ib_alloc_security, *sec);
+ if (rc) {
+ kfree(*sec);
+ *sec = NULL;
+ }
+ return rc;
}
EXPORT_SYMBOL(security_ib_alloc_security);
@@ -5108,7 +5121,7 @@ EXPORT_SYMBOL(security_ib_alloc_security);
*/
void security_ib_free_security(void *sec)
{
- call_void_hook(ib_free_security, sec);
+ kfree(sec);
}
EXPORT_SYMBOL(security_ib_free_security);
#endif /* CONFIG_SECURITY_INFINIBAND */