diff options
Diffstat (limited to 'fs/ecryptfs')
| -rw-r--r-- | fs/ecryptfs/crypto.c | 4 | ||||
| -rw-r--r-- | fs/ecryptfs/dentry.c | 3 | ||||
| -rw-r--r-- | fs/ecryptfs/ecryptfs_kernel.h | 17 | ||||
| -rw-r--r-- | fs/ecryptfs/file.c | 15 | ||||
| -rw-r--r-- | fs/ecryptfs/inode.c | 79 | ||||
| -rw-r--r-- | fs/ecryptfs/main.c | 5 | ||||
| -rw-r--r-- | fs/ecryptfs/mmap.c | 16 |
7 files changed, 50 insertions, 89 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index 7196f50..a86a55c 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -828,9 +828,7 @@ int ecryptfs_init_crypt_ctx(struct ecryptfs_crypt_stat *crypt_stat) mutex_unlock(&crypt_stat->cs_tfm_mutex); goto out; } - crypto_blkcipher_set_flags(crypt_stat->tfm, - (ECRYPTFS_DEFAULT_CHAINING_MODE - | CRYPTO_TFM_REQ_WEAK_KEY)); + crypto_blkcipher_set_flags(crypt_stat->tfm, CRYPTO_TFM_REQ_WEAK_KEY); mutex_unlock(&crypt_stat->cs_tfm_mutex); rc = 0; out: diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c index 52d1e36..329efcd 100644 --- a/fs/ecryptfs/dentry.c +++ b/fs/ecryptfs/dentry.c @@ -25,6 +25,7 @@ #include <linux/dcache.h> #include <linux/namei.h> #include <linux/mount.h> +#include <linux/fs_stack.h> #include "ecryptfs_kernel.h" /** @@ -61,7 +62,7 @@ static int ecryptfs_d_revalidate(struct dentry *dentry, struct nameidata *nd) struct inode *lower_inode = ecryptfs_inode_to_lower(dentry->d_inode); - ecryptfs_copy_attr_all(dentry->d_inode, lower_inode); + fsstack_copy_attr_all(dentry->d_inode, lower_inode, NULL); } out: return rc; diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index f992533..0f89710 100644 --- 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 */ @@ -174,7 +176,6 @@ ecryptfs_get_key_payload_data(struct key *key) #define ECRYPTFS_FILE_SIZE_BYTES 8 #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 @@ -227,8 +228,7 @@ 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; }; @@ -355,26 +355,26 @@ 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; } @@ -413,9 +413,6 @@ 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); diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 42099e7..c5a2e52 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -30,6 +30,7 @@ #include <linux/security.h> #include <linux/smp_lock.h> #include <linux/compat.h> +#include <linux/fs_stack.h> #include "ecryptfs_kernel.h" /** @@ -75,7 +76,7 @@ static loff_t ecryptfs_llseek(struct file *file, loff_t offset, int origin) } ecryptfs_printk(KERN_DEBUG, "new_end_pos = [0x%.16x]\n", new_end_pos); if (expanding_file) { - rc = ecryptfs_truncate(file->f_dentry, new_end_pos); + rc = ecryptfs_truncate(file->f_path.dentry, new_end_pos); if (rc) { rv = rc; ecryptfs_printk(KERN_ERR, "Error on attempt to " @@ -116,8 +117,8 @@ static ssize_t ecryptfs_read_update_atime(struct kiocb *iocb, if (-EIOCBQUEUED == rc) rc = wait_on_sync_kiocb(iocb); if (rc >= 0) { - lower_dentry = ecryptfs_dentry_to_lower(file->f_dentry); - lower_vfsmount = ecryptfs_dentry_to_lower_mnt(file->f_dentry); + lower_dentry = ecryptfs_dentry_to_lower(file->f_path.dentry); + lower_vfsmount = ecryptfs_dentry_to_lower_mnt(file->f_path.dentry); touch_atime(lower_vfsmount, lower_dentry); } return rc; @@ -176,10 +177,10 @@ static int ecryptfs_readdir(struct file *file, void *dirent, filldir_t filldir) lower_file = ecryptfs_file_to_lower(file); lower_file->f_pos = file->f_pos; - inode = file->f_dentry->d_inode; + inode = file->f_path.dentry->d_inode; memset(&buf, 0, sizeof(buf)); buf.dirent = dirent; - buf.dentry = file->f_dentry; + buf.dentry = file->f_path.dentry; buf.filldir = filldir; retry: buf.filldir_called = 0; @@ -192,7 +193,7 @@ retry: goto retry; file->f_pos = lower_file->f_pos; if (rc >= 0) - ecryptfs_copy_attr_atime(inode, lower_file->f_dentry->d_inode); + fsstack_copy_attr_atime(inode, lower_file->f_path.dentry->d_inode); return rc; } @@ -239,7 +240,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file) int rc = 0; struct ecryptfs_crypt_stat *crypt_stat = NULL; struct ecryptfs_mount_crypt_stat *mount_crypt_stat; - struct dentry *ecryptfs_dentry = file->f_dentry; + struct dentry *ecryptfs_dentry = file->f_path.dentry; /* Private value of ecryptfs_dentry allocated in * ecryptfs_lookup() */ struct dentry *lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry); diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 8a1945a..11f5e50 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -30,6 +30,7 @@ #include <linux/namei.h> #include <linux/mount.h> #include <linux/crypto.h> +#include <linux/fs_stack.h> #include "ecryptfs_kernel.h" static struct dentry *lock_parent(struct dentry *dentry) @@ -53,48 +54,6 @@ static void unlock_dir(struct dentry *dir) dput(dir); } -void ecryptfs_copy_inode_size(struct inode *dst, const struct inode *src) -{ - i_size_write(dst, i_size_read((struct inode *)src)); - dst->i_blocks = src->i_blocks; -} - -void ecryptfs_copy_attr_atime(struct inode *dest, const struct inode *src) -{ - dest->i_atime = src->i_atime; -} - -static void ecryptfs_copy_attr_times(struct inode *dest, - const struct inode *src) -{ - dest->i_atime = src->i_atime; - dest->i_mtime = src->i_mtime; - dest->i_ctime = src->i_ctime; -} - -static void ecryptfs_copy_attr_timesizes(struct inode *dest, - const struct inode *src) -{ - dest->i_atime = src->i_atime; - dest->i_mtime = src->i_mtime; - dest->i_ctime = src->i_ctime; - ecryptfs_copy_inode_size(dest, src); -} - -void ecryptfs_copy_attr_all(struct inode *dest, const struct inode *src) -{ - dest->i_mode = src->i_mode; - dest->i_nlink = src->i_nlink; - dest->i_uid = src->i_uid; - dest->i_gid = src->i_gid; - dest->i_rdev = src->i_rdev; - dest->i_atime = src->i_atime; - dest->i_mtime = src->i_mtime; - dest->i_ctime = src->i_ctime; - dest->i_blkbits = src->i_blkbits; - dest->i_flags = src->i_flags; -} - /** * ecryptfs_create_underlying_file * @lower_dir_inode: inode of the parent in the lower fs of the new file @@ -171,8 +130,8 @@ ecryptfs_do_create(struct inode *directory_inode, ecryptfs_printk(KERN_ERR, "Failure in ecryptfs_interpose\n"); goto out_lock; } - ecryptfs_copy_attr_timesizes(directory_inode, - lower_dir_dentry->d_inode); + fsstack_copy_attr_times(directory_inode, lower_dir_dentry->d_inode); + fsstack_copy_inode_size(directory_inode, lower_dir_dentry->d_inode); out_lock: unlock_dir(lower_dir_dentry); out: @@ -196,7 +155,7 @@ static int grow_file(struct dentry *ecryptfs_dentry, struct file *lower_file, struct ecryptfs_file_info tmp_file_info; memset(&fake_file, 0, sizeof(fake_file)); - fake_file.f_dentry = ecryptfs_dentry; + fake_file.f_path.dentry = ecryptfs_dentry; memset(&tmp_file_info, 0, sizeof(tmp_file_info)); ecryptfs_set_file_private(&fake_file, &tmp_file_info); ecryptfs_set_file_lower(&fake_file, lower_file); @@ -365,7 +324,7 @@ static struct dentry *ecryptfs_lookup(struct inode *dir, struct dentry *dentry, "d_name.name = [%s]\n", lower_dentry, lower_dentry->d_name.name); lower_inode = lower_dentry->d_inode; - ecryptfs_copy_attr_atime(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_atime(dir, lower_dir_dentry->d_inode); BUG_ON(!atomic_read(&lower_dentry->d_count)); ecryptfs_set_dentry_private(dentry, kmem_cache_alloc(ecryptfs_dentry_info_cache, @@ -462,7 +421,8 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir, rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb, 0); if (rc) goto out_lock; - ecryptfs_copy_attr_timesizes(dir, lower_new_dentry->d_inode); + fsstack_copy_attr_times(dir, lower_new_dentry->d_inode); + fsstack_copy_inode_size(dir, lower_new_dentry->d_inode); old_dentry->d_inode->i_nlink = ecryptfs_inode_to_lower(old_dentry->d_inode)->i_nlink; i_size_write(new_dentry->d_inode, file_size_save); @@ -488,7 +448,7 @@ static int ecryptfs_unlink(struct inode *dir, struct dentry *dentry) printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc); goto out_unlock; } - ecryptfs_copy_attr_times(dir, lower_dir_inode); + fsstack_copy_attr_times(dir, lower_dir_inode); dentry->d_inode->i_nlink = ecryptfs_inode_to_lower(dentry->d_inode)->i_nlink; dentry->d_inode->i_ctime = dir->i_ctime; @@ -527,7 +487,8 @@ static int ecryptfs_symlink(struct inode *dir, struct dentry *dentry, rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0); if (rc) goto out_lock; - ecryptfs_copy_attr_timesizes(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); + fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); out_lock: unlock_dir(lower_dir_dentry); dput(lower_dentry); @@ -550,7 +511,8 @@ static int ecryptfs_mkdir(struct inode *dir, struct dentry *dentry, int mode) rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0); if (rc) goto out; - ecryptfs_copy_attr_timesizes(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); + fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); dir->i_nlink = lower_dir_dentry->d_inode->i_nlink; out: unlock_dir(lower_dir_dentry); @@ -573,7 +535,7 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry) dput(lower_dentry); if (!rc) d_delete(lower_dentry); - ecryptfs_copy_attr_times(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); dir->i_nlink = lower_dir_dentry->d_inode->i_nlink; unlock_dir(lower_dir_dentry); if (!rc) @@ -597,7 +559,8 @@ ecryptfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb, 0); if (rc) goto out; - ecryptfs_copy_attr_timesizes(dir, lower_dir_dentry->d_inode); + fsstack_copy_attr_times(dir, lower_dir_dentry->d_inode); + fsstack_copy_inode_size(dir, lower_dir_dentry->d_inode); out: unlock_dir(lower_dir_dentry); if (!dentry->d_inode) @@ -626,9 +589,9 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, lower_new_dir_dentry->d_inode, lower_new_dentry); if (rc) goto out_lock; - ecryptfs_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode); + fsstack_copy_attr_all(new_dir, lower_new_dir_dentry->d_inode, NULL); if (new_dir != old_dir) - ecryptfs_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode); + fsstack_copy_attr_all(old_dir, lower_old_dir_dentry->d_inode, NULL); out_lock: unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry); dput(lower_new_dentry->d_parent); @@ -684,8 +647,8 @@ ecryptfs_readlink(struct dentry *dentry, char __user * buf, int bufsiz) rc = -EFAULT; } kfree(decoded_name); - ecryptfs_copy_attr_atime(dentry->d_inode, - lower_dentry->d_inode); + fsstack_copy_attr_atime(dentry->d_inode, + lower_dentry->d_inode); } out_free_lower_buf: kfree(lower_buf); @@ -791,7 +754,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) * the file in the underlying filesystem so that the * truncation has an effect there as well. */ memset(&fake_ecryptfs_file, 0, sizeof(fake_ecryptfs_file)); - fake_ecryptfs_file.f_dentry = dentry; + fake_ecryptfs_file.f_path.dentry = dentry; /* Released at out_free: label */ ecryptfs_set_file_private(&fake_ecryptfs_file, kmem_cache_alloc(ecryptfs_file_info_cache, @@ -915,7 +878,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) } rc = notify_change(lower_dentry, ia); out: - ecryptfs_copy_attr_all(inode, lower_inode); + fsstack_copy_attr_all(inode, lower_inode, NULL); return rc; } diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index 3ede12b..d0541ae8 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -35,6 +35,7 @@ #include <linux/pagemap.h> #include <linux/key.h> #include <linux/parser.h> +#include <linux/fs_stack.h> #include "ecryptfs_kernel.h" /** @@ -112,10 +113,10 @@ int ecryptfs_interpose(struct dentry *lower_dentry, struct dentry *dentry, d_add(dentry, inode); else d_instantiate(dentry, inode); - ecryptfs_copy_attr_all(inode, lower_inode); + fsstack_copy_attr_all(inode, lower_inode, NULL); /* This size will be overwritten for real files w/ headers and * other metadata */ - ecryptfs_copy_inode_size(inode, lower_inode); + fsstack_copy_inode_size(inode, lower_inode); out: return rc; } diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c index 924dd90..06843d2 100644 --- a/fs/ecryptfs/mmap.c +++ b/fs/ecryptfs/mmap.c @@ -51,7 +51,7 @@ static struct page *ecryptfs_get1page(struct file *file, int index) struct inode *inode; struct address_space *mapping; - dentry = file->f_dentry; + dentry = file->f_path.dentry; inode = dentry->d_inode; mapping = inode->i_mapping; page = read_cache_page(mapping, index, @@ -84,7 +84,7 @@ int write_zeros(struct file *file, pgoff_t index, int start, int num_zeros); int ecryptfs_fill_zeros(struct file *file, loff_t new_length) { int rc = 0; - struct dentry *dentry = file->f_dentry; + struct dentry *dentry = file->f_path.dentry; struct inode *inode = dentry->d_inode; pgoff_t old_end_page_index = 0; pgoff_t index = old_end_page_index; @@ -218,7 +218,7 @@ int ecryptfs_do_readpage(struct file *file, struct page *page, char *lower_page_data; const struct address_space_operations *lower_a_ops; - dentry = file->f_dentry; + dentry = file->f_path.dentry; lower_file = ecryptfs_file_to_lower(file); lower_dentry = ecryptfs_dentry_to_lower(dentry); inode = dentry->d_inode; @@ -275,9 +275,9 @@ static int ecryptfs_readpage(struct file *file, struct page *page) int rc = 0; struct ecryptfs_crypt_stat *crypt_stat; - BUG_ON(!(file && file->f_dentry && file->f_dentry->d_inode)); - crypt_stat = - &ecryptfs_inode_to_private(file->f_dentry->d_inode)->crypt_stat; + BUG_ON(!(file && file->f_path.dentry && file->f_path.dentry->d_inode)); + crypt_stat = &ecryptfs_inode_to_private(file->f_path.dentry->d_inode) + ->crypt_stat; if (!crypt_stat || !ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_ENCRYPTED) || ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE)) { @@ -638,8 +638,8 @@ static int ecryptfs_commit_write(struct file *file, struct page *page, lower_inode = ecryptfs_inode_to_lower(inode); lower_file = ecryptfs_file_to_lower(file); mutex_lock(&lower_inode->i_mutex); - crypt_stat = - &ecryptfs_inode_to_private(file->f_dentry->d_inode)->crypt_stat; + crypt_stat = &ecryptfs_inode_to_private(file->f_path.dentry->d_inode) + ->crypt_stat; if (ECRYPTFS_CHECK_FLAG(crypt_stat->flags, ECRYPTFS_NEW_FILE)) { ecryptfs_printk(KERN_DEBUG, "ECRYPTFS_NEW_FILE flag set in " "crypt_stat at memory location [%p]\n", crypt_stat); |