ceph: Move secret key parsing earlier.

This makes the base64 logic be contained in mount option parsing,
and prepares us for replacing the homebew key management with the
kernel key retention service.

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

1 files changed, 36 insertions, 7 deletions

diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 9bbb356b12e..02e084f29d2 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -20,6 +20,7 @@
 #include <linux/ceph/decode.h>
 #include <linux/ceph/mon_client.h>
 #include <linux/ceph/auth.h>
+#include "crypto.h"
 
 
 
@@ -117,9 +118,29 @@ int ceph_compare_options(struct ceph_options *new_opt,
 	if (ret)
 		return ret;
 
-	ret = strcmp_null(opt1->secret, opt2->secret);
-	if (ret)
-		return ret;
+	if (opt1->key && !opt2->key)
+		return -1;
+	if (!opt1->key && opt2->key)
+		return 1;
+	if (opt1->key && opt2->key) {
+		if (opt1->key->type != opt2->key->type)
+			return -1;
+		if (opt1->key->created.tv_sec != opt2->key->created.tv_sec)
+			return -1;
+		if (opt1->key->created.tv_nsec != opt2->key->created.tv_nsec)
+			return -1;
+		if (opt1->key->len != opt2->key->len)
+			return -1;
+		if (opt1->key->key && !opt2->key->key)
+			return -1;
+		if (!opt1->key->key && opt2->key->key)
+			return 1;
+		if (opt1->key->key && opt2->key->key) {
+			ret = memcmp(opt1->key->key, opt2->key->key, opt1->key->len);
+			if (ret)
+				return ret;
+		}
+	}
 
 	/* any matching mon ip implies a match */
 	for (i = 0; i < opt1->num_mon; i++) {
@@ -203,7 +224,10 @@ void ceph_destroy_options(struct ceph_options *opt)
 {
 	dout("destroy_options %p\n", opt);
 	kfree(opt->name);
-	kfree(opt->secret);
+	if (opt->key) {
+		ceph_crypto_key_destroy(opt->key);
+		kfree(opt->key);
+	}
 	kfree(opt);
 }
 EXPORT_SYMBOL(ceph_destroy_options);
@@ -295,9 +319,14 @@ int ceph_parse_options(struct ceph_options **popt, char *options,
 					      GFP_KERNEL);
 			break;
 		case Opt_secret:
-			opt->secret = kstrndup(argstr[0].from,
-						argstr[0].to-argstr[0].from,
-						GFP_KERNEL);
+		        opt->key = kzalloc(sizeof(*opt->key), GFP_KERNEL);
+			if (!opt->key) {
+				err = -ENOMEM;
+				goto out;
+			}
+			err = ceph_crypto_key_unarmor(opt->key, argstr[0].from);
+			if (err < 0)
+				goto out;
 			break;
 
 			/* misc */