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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-28 14:10:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-28 14:10:43 -0700
commite933424c4823596ed231648eeb602b5209960ff6 (patch)
treed1bec768605bd4cc91326b80a02fa6472384bf08
parent8f2a0029b8aaed9fb37d775dbe527e163920b129 (diff)
parent93c3fe40c279f002906ad14584c30671097d4394 (diff)
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6: eCryptfs: Fix encrypted file name lookup regression ecryptfs: properly mark init functions fs/ecryptfs: Return -ENOMEM on memory allocation failure
-rw-r--r--fs/ecryptfs/crypto.c3
-rw-r--r--fs/ecryptfs/inode.c31
-rw-r--r--fs/ecryptfs/keystore.c2
-rw-r--r--fs/ecryptfs/kthread.c2
-rw-r--r--fs/ecryptfs/messaging.c2
-rw-r--r--fs/ecryptfs/miscdev.c2
6 files changed, 30 insertions, 12 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index a2e3b562e65..cbadc1bee6e 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -1793,7 +1793,7 @@ struct kmem_cache *ecryptfs_key_tfm_cache;
static struct list_head key_tfm_list;
struct mutex key_tfm_list_mutex;
-int ecryptfs_init_crypto(void)
+int __init ecryptfs_init_crypto(void)
{
mutex_init(&key_tfm_list_mutex);
INIT_LIST_HEAD(&key_tfm_list);
@@ -2169,7 +2169,6 @@ int ecryptfs_encrypt_and_encode_filename(
(ECRYPTFS_FNEK_ENCRYPTED_FILENAME_PREFIX_SIZE
+ encoded_name_no_prefix_size);
(*encoded_name)[(*encoded_name_size)] = '\0';
- (*encoded_name_size)++;
} else {
rc = -EOPNOTSUPP;
}
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 6c55113e722..3fbc9420338 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -349,7 +349,7 @@ out:
/**
* ecryptfs_new_lower_dentry
- * @ename: The name of the new dentry.
+ * @name: The name of the new dentry.
* @lower_dir_dentry: Parent directory of the new dentry.
* @nd: nameidata from last lookup.
*
@@ -386,20 +386,19 @@ ecryptfs_new_lower_dentry(struct qstr *name, struct dentry *lower_dir_dentry,
* ecryptfs_lookup_one_lower
* @ecryptfs_dentry: The eCryptfs dentry that we are looking up
* @lower_dir_dentry: lower parent directory
+ * @name: lower file name
*
* Get the lower dentry from vfs. If lower dentry does not exist yet,
* create it.
*/
static struct dentry *
ecryptfs_lookup_one_lower(struct dentry *ecryptfs_dentry,
- struct dentry *lower_dir_dentry)
+ struct dentry *lower_dir_dentry, struct qstr *name)
{
struct nameidata nd;
struct vfsmount *lower_mnt;
- struct qstr *name;
int err;
- name = &ecryptfs_dentry->d_name;
lower_mnt = mntget(ecryptfs_dentry_to_lower_mnt(
ecryptfs_dentry->d_parent));
err = vfs_path_lookup(lower_dir_dentry, lower_mnt, name->name , 0, &nd);
@@ -434,6 +433,7 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
size_t encrypted_and_encoded_name_size;
struct ecryptfs_mount_crypt_stat *mount_crypt_stat = NULL;
struct dentry *lower_dir_dentry, *lower_dentry;
+ struct qstr lower_name;
int rc = 0;
ecryptfs_dentry->d_op = &ecryptfs_dops;
@@ -444,9 +444,17 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
goto out_d_drop;
}
lower_dir_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry->d_parent);
-
+ lower_name.name = ecryptfs_dentry->d_name.name;
+ lower_name.len = ecryptfs_dentry->d_name.len;
+ lower_name.hash = ecryptfs_dentry->d_name.hash;
+ if (lower_dir_dentry->d_op && lower_dir_dentry->d_op->d_hash) {
+ rc = lower_dir_dentry->d_op->d_hash(lower_dir_dentry,
+ &lower_name);
+ if (rc < 0)
+ goto out_d_drop;
+ }
lower_dentry = ecryptfs_lookup_one_lower(ecryptfs_dentry,
- lower_dir_dentry);
+ lower_dir_dentry, &lower_name);
if (IS_ERR(lower_dentry)) {
rc = PTR_ERR(lower_dentry);
ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_lower() returned "
@@ -471,8 +479,17 @@ static struct dentry *ecryptfs_lookup(struct inode *ecryptfs_dir_inode,
"filename; rc = [%d]\n", __func__, rc);
goto out_d_drop;
}
+ lower_name.name = encrypted_and_encoded_name;
+ lower_name.len = encrypted_and_encoded_name_size;
+ lower_name.hash = full_name_hash(lower_name.name, lower_name.len);
+ if (lower_dir_dentry->d_op && lower_dir_dentry->d_op->d_hash) {
+ rc = lower_dir_dentry->d_op->d_hash(lower_dir_dentry,
+ &lower_name);
+ if (rc < 0)
+ goto out_d_drop;
+ }
lower_dentry = ecryptfs_lookup_one_lower(ecryptfs_dentry,
- lower_dir_dentry);
+ lower_dir_dentry, &lower_name);
if (IS_ERR(lower_dentry)) {
rc = PTR_ERR(lower_dentry);
ecryptfs_printk(KERN_DEBUG, "%s: lookup_one_lower() returned "
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 89c5476506e..73811cfa2ea 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -515,6 +515,7 @@ ecryptfs_write_tag_70_packet(char *dest, size_t *remaining_bytes,
if (!s) {
printk(KERN_ERR "%s: Out of memory whilst trying to kmalloc "
"[%zd] bytes of kernel memory\n", __func__, sizeof(*s));
+ rc = -ENOMEM;
goto out;
}
s->desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
@@ -806,6 +807,7 @@ ecryptfs_parse_tag_70_packet(char **filename, size_t *filename_size,
if (!s) {
printk(KERN_ERR "%s: Out of memory whilst trying to kmalloc "
"[%zd] bytes of kernel memory\n", __func__, sizeof(*s));
+ rc = -ENOMEM;
goto out;
}
s->desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
diff --git a/fs/ecryptfs/kthread.c b/fs/ecryptfs/kthread.c
index d8c3a373aaf..0851ab6980f 100644
--- a/fs/ecryptfs/kthread.c
+++ b/fs/ecryptfs/kthread.c
@@ -86,7 +86,7 @@ out:
return 0;
}
-int ecryptfs_init_kthread(void)
+int __init ecryptfs_init_kthread(void)
{
int rc = 0;
diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c
index bcb68c0cb1f..ab224809051 100644
--- a/fs/ecryptfs/messaging.c
+++ b/fs/ecryptfs/messaging.c
@@ -473,7 +473,7 @@ sleep:
return rc;
}
-int ecryptfs_init_messaging(void)
+int __init ecryptfs_init_messaging(void)
{
int i;
int rc = 0;
diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c
index 3745f612bcd..00208c3d7e9 100644
--- a/fs/ecryptfs/miscdev.c
+++ b/fs/ecryptfs/miscdev.c
@@ -500,7 +500,7 @@ static struct miscdevice ecryptfs_miscdev = {
*
* Returns zero on success; non-zero otherwise
*/
-int ecryptfs_init_ecryptfs_miscdev(void)
+int __init ecryptfs_init_ecryptfs_miscdev(void)
{
int rc;