diff options
Diffstat (limited to 'fs/squashfs')
| -rw-r--r-- | fs/squashfs/inode.c | 2 | ||||
| -rw-r--r-- | fs/squashfs/symlink.c | 3 | ||||
| -rw-r--r-- | fs/squashfs/xattr.c | 38 |
3 files changed, 11 insertions, 32 deletions
diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c index a1ce5ce60632..0927b1e80ab6 100644 --- a/fs/squashfs/inode.c +++ b/fs/squashfs/inode.c @@ -41,6 +41,7 @@ #include <linux/fs.h> #include <linux/vfs.h> #include <linux/xattr.h> +#include <linux/pagemap.h> #include "squashfs_fs.h" #include "squashfs_fs_sb.h" @@ -291,6 +292,7 @@ int squashfs_read_inode(struct inode *inode, long long ino) set_nlink(inode, le32_to_cpu(sqsh_ino->nlink)); inode->i_size = le32_to_cpu(sqsh_ino->symlink_size); inode->i_op = &squashfs_symlink_inode_ops; + inode_nohighmem(inode); inode->i_data.a_ops = &squashfs_symlink_aops; inode->i_mode |= S_IFLNK; squashfs_i(inode)->start = block; diff --git a/fs/squashfs/symlink.c b/fs/squashfs/symlink.c index 12806dffb345..dbcc2f54bad4 100644 --- a/fs/squashfs/symlink.c +++ b/fs/squashfs/symlink.c @@ -119,8 +119,7 @@ const struct address_space_operations squashfs_symlink_aops = { const struct inode_operations squashfs_symlink_inode_ops = { .readlink = generic_readlink, - .follow_link = page_follow_link_light, - .put_link = page_put_link, + .get_link = page_get_link, .getxattr = generic_getxattr, .listxattr = squashfs_listxattr }; diff --git a/fs/squashfs/xattr.c b/fs/squashfs/xattr.c index 6a4cc344085c..1e9de96288d8 100644 --- a/fs/squashfs/xattr.c +++ b/fs/squashfs/xattr.c @@ -58,7 +58,7 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer, struct squashfs_xattr_entry entry; struct squashfs_xattr_val val; const struct xattr_handler *handler; - int name_size, prefix_size = 0; + int name_size; err = squashfs_read_metadata(sb, &entry, &start, &offset, sizeof(entry)); @@ -67,15 +67,16 @@ ssize_t squashfs_listxattr(struct dentry *d, char *buffer, name_size = le16_to_cpu(entry.size); handler = squashfs_xattr_handler(le16_to_cpu(entry.type)); - if (handler) - prefix_size = handler->list(handler, d, buffer, rest, - NULL, name_size); - if (prefix_size) { + if (handler && (!handler->list || handler->list(d))) { + const char *prefix = handler->prefix ?: handler->name; + size_t prefix_size = strlen(prefix); + if (buffer) { if (prefix_size + name_size + 1 > rest) { err = -ERANGE; goto failed; } + memcpy(buffer, prefix, prefix_size); buffer += prefix_size; } err = squashfs_read_metadata(sb, buffer, &start, @@ -212,25 +213,10 @@ failed: } -static size_t squashfs_xattr_handler_list(const struct xattr_handler *handler, - struct dentry *d, char *list, - size_t list_size, const char *name, - size_t name_len) -{ - int len = strlen(handler->prefix); - - if (list && len <= list_size) - memcpy(list, handler->prefix, len); - return len; -} - static int squashfs_xattr_handler_get(const struct xattr_handler *handler, struct dentry *d, const char *name, void *buffer, size_t size) { - if (name[0] == '\0') - return -EINVAL; - return squashfs_xattr_get(d_inode(d), handler->flags, name, buffer, size); } @@ -241,22 +227,15 @@ static int squashfs_xattr_handler_get(const struct xattr_handler *handler, static const struct xattr_handler squashfs_xattr_user_handler = { .prefix = XATTR_USER_PREFIX, .flags = SQUASHFS_XATTR_USER, - .list = squashfs_xattr_handler_list, .get = squashfs_xattr_handler_get }; /* * Trusted namespace support */ -static size_t squashfs_trusted_xattr_handler_list(const struct xattr_handler *handler, - struct dentry *d, char *list, - size_t list_size, const char *name, - size_t name_len) +static bool squashfs_trusted_xattr_handler_list(struct dentry *d) { - if (!capable(CAP_SYS_ADMIN)) - return 0; - return squashfs_xattr_handler_list(handler, d, list, list_size, name, - name_len); + return capable(CAP_SYS_ADMIN); } static const struct xattr_handler squashfs_xattr_trusted_handler = { @@ -272,7 +251,6 @@ static const struct xattr_handler squashfs_xattr_trusted_handler = { static const struct xattr_handler squashfs_xattr_security_handler = { .prefix = XATTR_SECURITY_PREFIX, .flags = SQUASHFS_XATTR_SECURITY, - .list = squashfs_xattr_handler_list, .get = squashfs_xattr_handler_get }; |