vfs: introduce noop_llseek()

[safe/jmp/linux-2.6] / fs / ecryptfs / keystore.c

diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 3a61f05..89c5476 100644 (file)
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -32,6 +32,7 @@
 #include <linux/random.h>
 #include <linux/crypto.h>
 #include <linux/scatterlist.h>
+#include <linux/slab.h>
 #include "ecryptfs_kernel.h"
 
 /**
@@ -416,7 +417,9 @@ ecryptfs_find_global_auth_tok_for_sig(
                            &mount_crypt_stat->global_auth_tok_list,
                            mount_crypt_stat_list) {
                if (memcmp(walker->sig, sig, ECRYPTFS_SIG_SIZE_HEX) == 0) {
-                       (*global_auth_tok) = walker;
+                       rc = key_validate(walker->global_auth_tok_key);
+                       if (!rc)
+                               (*global_auth_tok) = walker;
                        goto out;
                }
        }
@@ -612,7 +615,12 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
        }
        /* TODO: Support other key modules than passphrase for
         * filename encryption */
-       BUG_ON(s->auth_tok->token_type != ECRYPTFS_PASSWORD);
+       if (s->auth_tok->token_type != ECRYPTFS_PASSWORD) {
+               rc = -EOPNOTSUPP;
+               printk(KERN_INFO "%s: Filename encryption only supports "
+                      "password tokens\n", __func__);
+               goto out_free_unlock;
+       }
        sg_init_one(
                &s->hash_sg,
                (u8 *)s->auth_tok->token.password.session_key_encryption_key,
@@ -910,7 +918,12 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
        }
        /* TODO: Support other key modules than passphrase for
         * filename encryption */
-       BUG_ON(s->auth_tok->token_type != ECRYPTFS_PASSWORD);
+       if (s->auth_tok->token_type != ECRYPTFS_PASSWORD) {
+               rc = -EOPNOTSUPP;
+               printk(KERN_INFO "%s: Filename encryption only supports "
+                      "password tokens\n", __func__);
+               goto out_free_unlock;
+       }
        rc = crypto_blkcipher_setkey(
                s->desc.tfm,
                s->auth_tok->token.password.session_key_encryption_key,