aboutsummaryrefslogtreecommitdiffstats
path: root/security/integrity
diff options
context:
space:
mode:
authorDmitry Kasatkin <d.kasatkin@samsung.com>2014-11-05 17:01:13 +0200
committerMimi Zohar <zohar@linux.vnet.ibm.com>2014-11-17 23:11:59 -0500
commit65d543b2335ede80e5e66bc4f559f62db5f469bd (patch)
tree846bf4fd2bcb05ec85e27bcf70b817476ab4bba0 /security/integrity
parentintegrity: define a new function integrity_read_file() (diff)
downloadlinux-dev-65d543b2335ede80e5e66bc4f559f62db5f469bd.tar.xz
linux-dev-65d543b2335ede80e5e66bc4f559f62db5f469bd.zip
integrity: provide a function to load x509 certificate from the kernel
Provide the function to load x509 certificates from the kernel into the integrity kernel keyring. Changes in v2: * configuration option removed * function declared as '__init' Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to 'security/integrity')
-rw-r--r--security/integrity/digsig.c36
-rw-r--r--security/integrity/integrity.h2
2 files changed, 37 insertions, 1 deletions
diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 4f643d1b34dd..5e3bd72b299a 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -14,7 +14,7 @@
#include <linux/err.h>
#include <linux/sched.h>
-#include <linux/rbtree.h>
+#include <linux/slab.h>
#include <linux/cred.h>
#include <linux/key-type.h>
#include <linux/digsig.h>
@@ -84,3 +84,37 @@ int __init integrity_init_keyring(const unsigned int id)
}
return err;
}
+
+int __init integrity_load_x509(const unsigned int id, char *path)
+{
+ key_ref_t key;
+ char *data;
+ int rc;
+
+ if (!keyring[id])
+ return -EINVAL;
+
+ rc = integrity_read_file(path, &data);
+ if (rc < 0)
+ return rc;
+
+ key = key_create_or_update(make_key_ref(keyring[id], 1),
+ "asymmetric",
+ NULL,
+ data,
+ rc,
+ ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+ KEY_USR_VIEW | KEY_USR_READ),
+ KEY_ALLOC_NOT_IN_QUOTA | KEY_ALLOC_TRUSTED);
+ if (IS_ERR(key)) {
+ rc = PTR_ERR(key);
+ pr_err("Problem loading X.509 certificate (%d): %s\n",
+ rc, path);
+ } else {
+ pr_notice("Loaded X.509 cert '%s': %s\n",
+ key_ref_to_ptr(key)->description, path);
+ key_ref_put(key);
+ }
+ kfree(data);
+ return 0;
+}
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 20d220481025..1057abbd31cd 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -134,6 +134,7 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
const char *digest, int digestlen);
int __init integrity_init_keyring(const unsigned int id);
+int __init integrity_load_x509(const unsigned int id, char *path);
#else
static inline int integrity_digsig_verify(const unsigned int id,
@@ -147,6 +148,7 @@ static inline int integrity_init_keyring(const unsigned int id)
{
return 0;
}
+
#endif /* CONFIG_INTEGRITY_SIGNATURE */
#ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS