Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[cascardo/linux.git] / fs / ecryptfs / ecryptfs_kernel.h

diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 872c995..afb64bd 100644 (file)
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -28,6 +28,8 @@
 
 #include <keys/user-type.h>
 #include <linux/fs.h>
+#include <linux/fs_stack.h>
+#include <linux/namei.h>
 #include <linux/scatterlist.h>
 
 /* Version verification for shared data structures w/ userspace */
@@ -175,6 +177,7 @@ ecryptfs_get_key_payload_data(struct key *key)
 #define ECRYPTFS_DEFAULT_CIPHER "aes"
 #define ECRYPTFS_DEFAULT_KEY_BYTES 16
 #define ECRYPTFS_DEFAULT_CHAINING_MODE CRYPTO_TFM_MODE_CBC
+#define ECRYPTFS_DEFAULT_HASH "md5"
 #define ECRYPTFS_TAG_3_PACKET_TYPE 0x8C
 #define ECRYPTFS_TAG_11_PACKET_TYPE 0xED
 #define MD5_DIGEST_SIZE 16
@@ -204,15 +207,15 @@ struct ecryptfs_crypt_stat {
        size_t extent_shift;
        unsigned int extent_mask;
        struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
-       struct crypto_tfm *tfm;
-       struct crypto_tfm *md5_tfm; /* Crypto context for generating
-                                    * the initialization vectors */
+       struct crypto_blkcipher *tfm;
+       struct crypto_hash *hash_tfm; /* Crypto context for generating
+                                      * the initialization vectors */
        unsigned char cipher[ECRYPTFS_MAX_CIPHER_NAME_SIZE];
        unsigned char key[ECRYPTFS_MAX_KEY_BYTES];
        unsigned char root_iv[ECRYPTFS_MAX_IV_BYTES];
        unsigned char keysigs[ECRYPTFS_MAX_NUM_KEYSIGS][ECRYPTFS_SIG_SIZE_HEX];
        struct mutex cs_tfm_mutex;
-       struct mutex cs_md5_tfm_mutex;
+       struct mutex cs_hash_tfm_mutex;
        struct mutex cs_mutex;
 };
 
@@ -226,8 +229,7 @@ struct ecryptfs_inode_info {
 /* dentry private data. Each dentry must keep track of a lower
  * vfsmount too. */
 struct ecryptfs_dentry_info {
-       struct dentry *wdi_dentry;
-       struct vfsmount *lower_mnt;
+       struct path lower_path;
        struct ecryptfs_crypt_stat *crypt_stat;
 };
 
@@ -244,7 +246,7 @@ struct ecryptfs_mount_crypt_stat {
        struct ecryptfs_auth_tok *global_auth_tok;
        struct key *global_auth_tok_key;
        size_t global_default_cipher_key_size;
-       struct crypto_tfm *global_key_tfm;
+       struct crypto_blkcipher *global_key_tfm;
        struct mutex global_key_tfm_mutex;
        unsigned char global_default_cipher_name[ECRYPTFS_MAX_CIPHER_NAME_SIZE
                                                 + 1];
@@ -354,26 +356,26 @@ ecryptfs_set_dentry_private(struct dentry *dentry,
 static inline struct dentry *
 ecryptfs_dentry_to_lower(struct dentry *dentry)
 {
-       return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->wdi_dentry;
+       return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.dentry;
 }
 
 static inline void
 ecryptfs_set_dentry_lower(struct dentry *dentry, struct dentry *lower_dentry)
 {
-       ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->wdi_dentry =
+       ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.dentry =
                lower_dentry;
 }
 
 static inline struct vfsmount *
 ecryptfs_dentry_to_lower_mnt(struct dentry *dentry)
 {
-       return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_mnt;
+       return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.mnt;
 }
 
 static inline void
 ecryptfs_set_dentry_lower_mnt(struct dentry *dentry, struct vfsmount *lower_mnt)
 {
-       ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_mnt =
+       ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.mnt =
                lower_mnt;
 }
 
@@ -412,9 +414,6 @@ int ecryptfs_encode_filename(struct ecryptfs_crypt_stat *crypt_stat,
                             const char *name, int length,
                             char **encoded_name);
 struct dentry *ecryptfs_lower_dentry(struct dentry *this_dentry);
-void ecryptfs_copy_attr_atime(struct inode *dest, const struct inode *src);
-void ecryptfs_copy_attr_all(struct inode *dest, const struct inode *src);
-void ecryptfs_copy_inode_size(struct inode *dst, const struct inode *src);
 void ecryptfs_dump_hex(char *data, int bytes);
 int virt_to_scatterlist(const void *addr, int size, struct scatterlist *sg,
                        int sg_size);
@@ -425,6 +424,9 @@ void ecryptfs_destruct_crypt_stat(struct ecryptfs_crypt_stat *crypt_stat);
 void ecryptfs_destruct_mount_crypt_stat(
        struct ecryptfs_mount_crypt_stat *mount_crypt_stat);
 int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat);
+int ecryptfs_crypto_api_algify_cipher_name(char **algified_name,
+                                          char *cipher_name,
+                                          char *chaining_modifier);
 int ecryptfs_write_inode_size_to_header(struct file *lower_file,
                                        struct inode *lower_inode,
                                        struct inode *inode);
@@ -473,10 +475,14 @@ ecryptfs_parse_packet_set(struct ecryptfs_crypt_stat *crypt_stat,
                          unsigned char *src, struct dentry *ecryptfs_dentry);
 int ecryptfs_truncate(struct dentry *dentry, loff_t new_length);
 int
-ecryptfs_process_cipher(struct crypto_tfm **tfm, struct crypto_tfm **key_tfm,
-                       char *cipher_name, size_t key_size);
+ecryptfs_process_cipher(struct crypto_blkcipher **key_tfm, char *cipher_name,
+                       size_t *key_size);
 int ecryptfs_inode_test(struct inode *inode, void *candidate_lower_inode);
 int ecryptfs_inode_set(struct inode *inode, void *lower_inode);
 void ecryptfs_init_inode(struct inode *inode, struct inode *lower_inode);
+int ecryptfs_open_lower_file(struct file **lower_file,
+                            struct dentry *lower_dentry,
+                            struct vfsmount *lower_mnt, int flags);
+int ecryptfs_close_lower_file(struct file *lower_file);
 
 #endif /* #ifndef ECRYPTFS_KERNEL_H */