libceph: Create a new key type "ceph".

This allows us to use existence of the key type as a feature test,
from userspace.

Signed-off-by: Tommi Virtanen <tommi.virtanen@dreamhost.com>
Signed-off-by: Sage Weil <sage@newdream.net>

1 files changed, 13 insertions, 8 deletions

diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index c92bc8d50597..132963abc266 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -6,7 +6,7 @@
 #include <linux/inet.h>
 #include <linux/in6.h>
 #include <linux/key.h>
-#include <keys/user-type.h>
+#include <keys/ceph-type.h>
 #include <linux/module.h>
 #include <linux/mount.h>
 #include <linux/parser.h>
@@ -241,10 +241,9 @@ static int get_secret(struct ceph_crypto_key *dst, const char *name) {
         struct key *ukey;
         int key_err;
         int err = 0;
-        struct user_key_payload *payload;
-        void *p;
+        struct ceph_crypto_key *ckey;
 
-        ukey = request_key(&key_type_user, name, NULL);
+        ukey = request_key(&key_type_ceph, name, NULL);
         if (!ukey || IS_ERR(ukey)) {
                 /* request_key errors don't map nicely to mount(2)
                    errors; don't even try, but still printk */
@@ -267,9 +266,8 @@ static int get_secret(struct ceph_crypto_key *dst, const char *name) {
                 goto out;
         }
 
-        payload = ukey->payload.data;
-        p = payload->data;
-        err = ceph_crypto_key_decode(dst, &p, p + payload->datalen);
+        ckey = ukey->payload.data;
+        err = ceph_crypto_key_clone(dst, ckey);
         if (err)
                 goto out_key;
         /* pass through, err is 0 */
@@ -583,10 +581,14 @@ static int __init init_ceph_lib(void)
         if (ret < 0)
                 goto out;
 
-        ret = ceph_msgr_init();
+        ret = ceph_crypto_init();
         if (ret < 0)
                 goto out_debugfs;
 
+        ret = ceph_msgr_init();
+        if (ret < 0)
+                goto out_crypto;
+
         pr_info("loaded (mon/osd proto %d/%d, osdmap %d/%d %d/%d)\n",
                 CEPH_MONC_PROTOCOL, CEPH_OSDC_PROTOCOL,
                 CEPH_OSDMAP_VERSION, CEPH_OSDMAP_VERSION_EXT,
@@ -594,6 +596,8 @@ static int __init init_ceph_lib(void)
 
         return 0;
 
+out_crypto:
+        ceph_crypto_shutdown();
 out_debugfs:
         ceph_debugfs_cleanup();
 out:
@@ -604,6 +608,7 @@ static void __exit exit_ceph_lib(void)
 {
         dout("exit_ceph_lib\n");
         ceph_msgr_exit();
+        ceph_crypto_shutdown();
         ceph_debugfs_cleanup();
 }