diff options
Diffstat (limited to 'fs')
108 files changed, 1011 insertions, 528 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c index 9a1d42630751..15b679166201 100644 --- a/fs/9p/acl.c +++ b/fs/9p/acl.c @@ -37,7 +37,7 @@ static struct posix_acl *__v9fs_get_acl(struct p9_fid *fid, char *name) return ERR_PTR(-ENOMEM); size = v9fs_fid_xattr_get(fid, name, value, size); if (size > 0) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) goto err_out; } @@ -131,7 +131,7 @@ static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl) buffer = kmalloc(size, GFP_KERNEL); if (!buffer) return -ENOMEM; - retval = posix_acl_to_xattr(acl, buffer, size); + retval = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); if (retval < 0) goto err_free_out; switch (type) { @@ -251,7 +251,7 @@ static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -304,7 +304,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name, return -EPERM; if (value) { /* update the cached acl value */ - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h index 718ac1f440c6..585adafb0cc2 100644 --- a/fs/adfs/adfs.h +++ b/fs/adfs/adfs.h @@ -46,8 +46,8 @@ struct adfs_sb_info { struct adfs_discmap *s_map; /* bh list containing map */ struct adfs_dir_ops *s_dir; /* directory operations */ - uid_t s_uid; /* owner uid */ - gid_t s_gid; /* owner gid */ + kuid_t s_uid; /* owner uid */ + kgid_t s_gid; /* owner gid */ umode_t s_owner_mask; /* ADFS owner perm -> unix perm */ umode_t s_other_mask; /* ADFS other perm -> unix perm */ int s_ftsuffix; /* ,xyz hex filetype suffix option */ diff --git a/fs/adfs/inode.c b/fs/adfs/inode.c index 1dab6a174d6a..e9bad5093a3f 100644 --- a/fs/adfs/inode.c +++ b/fs/adfs/inode.c @@ -304,8 +304,8 @@ adfs_notify_change(struct dentry *dentry, struct iattr *attr) * we can't change the UID or GID of any file - * we have a global UID/GID in the superblock */ - if ((ia_valid & ATTR_UID && attr->ia_uid != ADFS_SB(sb)->s_uid) || - (ia_valid & ATTR_GID && attr->ia_gid != ADFS_SB(sb)->s_gid)) + if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, ADFS_SB(sb)->s_uid)) || + (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, ADFS_SB(sb)->s_gid))) error = -EPERM; if (error) diff --git a/fs/adfs/super.c b/fs/adfs/super.c index bdaec92353c2..22a0d7ed5fa1 100644 --- a/fs/adfs/super.c +++ b/fs/adfs/super.c @@ -15,6 +15,7 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/statfs.h> +#include <linux/user_namespace.h> #include "adfs.h" #include "dir_f.h" #include "dir_fplus.h" @@ -130,10 +131,10 @@ static int adfs_show_options(struct seq_file *seq, struct dentry *root) { struct adfs_sb_info *asb = ADFS_SB(root->d_sb); - if (asb->s_uid != 0) - seq_printf(seq, ",uid=%u", asb->s_uid); - if (asb->s_gid != 0) - seq_printf(seq, ",gid=%u", asb->s_gid); + if (!uid_eq(asb->s_uid, GLOBAL_ROOT_UID)) + seq_printf(seq, ",uid=%u", from_kuid_munged(&init_user_ns, asb->s_uid)); + if (!gid_eq(asb->s_gid, GLOBAL_ROOT_GID)) + seq_printf(seq, ",gid=%u", from_kgid_munged(&init_user_ns, asb->s_gid)); if (asb->s_owner_mask != ADFS_DEFAULT_OWNER_MASK) seq_printf(seq, ",ownmask=%o", asb->s_owner_mask); if (asb->s_other_mask != ADFS_DEFAULT_OTHER_MASK) @@ -175,12 +176,16 @@ static int parse_options(struct super_block *sb, char *options) case Opt_uid: if (match_int(args, &option)) return -EINVAL; - asb->s_uid = option; + asb->s_uid = make_kuid(current_user_ns(), option); + if (!uid_valid(asb->s_uid)) + return -EINVAL; break; case Opt_gid: if (match_int(args, &option)) return -EINVAL; - asb->s_gid = option; + asb->s_gid = make_kgid(current_user_ns(), option); + if (!gid_valid(asb->s_gid)) + return -EINVAL; break; case Opt_ownmask: if (match_octal(args, &option)) @@ -369,8 +374,8 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_fs_info = asb; /* set default options */ - asb->s_uid = 0; - asb->s_gid = 0; + asb->s_uid = GLOBAL_ROOT_UID; + asb->s_gid = GLOBAL_ROOT_GID; asb->s_owner_mask = ADFS_DEFAULT_OWNER_MASK; asb->s_other_mask = ADFS_DEFAULT_OTHER_MASK; asb->s_ftsuffix = 0; diff --git a/fs/affs/affs.h b/fs/affs/affs.h index 6e216419f340..3952121f2f28 100644 --- a/fs/affs/affs.h +++ b/fs/affs/affs.h @@ -88,8 +88,8 @@ struct affs_sb_info { u32 s_root_block; /* FFS root block number. */ int s_hashsize; /* Size of hash table. */ unsigned long s_flags; /* See below. */ - uid_t s_uid; /* uid to override */ - gid_t s_gid; /* gid to override */ + kuid_t s_uid; /* uid to override */ + kgid_t s_gid; /* gid to override */ umode_t s_mode; /* mode to override */ struct buffer_head *s_root_bh; /* Cached root block. */ struct mutex s_bmlock; /* Protects bitmap access. */ diff --git a/fs/affs/inode.c b/fs/affs/inode.c index 8bc4a59f4e7e..15c484268229 100644 --- a/fs/affs/inode.c +++ b/fs/affs/inode.c @@ -80,17 +80,17 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino) if (id == 0 || sbi->s_flags & SF_SETUID) inode->i_uid = sbi->s_uid; else if (id == 0xFFFF && sbi->s_flags & SF_MUFS) - inode->i_uid = 0; + i_uid_write(inode, 0); else - inode->i_uid = id; + i_uid_write(inode, id); id = be16_to_cpu(tail->gid); if (id == 0 || sbi->s_flags & SF_SETGID) inode->i_gid = sbi->s_gid; else if (id == 0xFFFF && sbi->s_flags & SF_MUFS) - inode->i_gid = 0; + i_gid_write(inode, 0); else - inode->i_gid = id; + i_gid_write(inode, id); switch (be32_to_cpu(tail->stype)) { case ST_ROOT: @@ -193,13 +193,13 @@ affs_write_inode(struct inode *inode, struct writeback_control *wbc) tail->size = cpu_to_be32(inode->i_size); secs_to_datestamp(inode->i_mtime.tv_sec,&tail->change); if (!(inode->i_ino == AFFS_SB(sb)->s_root_block)) { - uid = inode->i_uid; - gid = inode->i_gid; + uid = i_uid_read(inode); + gid = i_gid_read(inode); if (AFFS_SB(sb)->s_flags & SF_MUFS) { - if (inode->i_uid == 0 || inode->i_uid == 0xFFFF) - uid = inode->i_uid ^ ~0; - if (inode->i_gid == 0 || inode->i_gid == 0xFFFF) - gid = inode->i_gid ^ ~0; + if (uid == 0 || uid == 0xFFFF) + uid = uid ^ ~0; + if (gid == 0 || gid == 0xFFFF) + gid = gid ^ ~0; } if (!(AFFS_SB(sb)->s_flags & SF_SETUID)) tail->uid = cpu_to_be16(uid); diff --git a/fs/affs/super.c b/fs/affs/super.c index 022cecb0757d..1f030825cd3a 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -188,7 +188,7 @@ static const match_table_t tokens = { }; static int -parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s32 *root, +parse_options(char *options, kuid_t *uid, kgid_t *gid, int *mode, int *reserved, s32 *root, int *blocksize, char **prefix, char *volume, unsigned long *mount_opts) { char *p; @@ -253,13 +253,17 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s case Opt_setgid: if (match_int(&args[0], &option)) return 0; - *gid = option; + *gid = make_kgid(current_user_ns(), option); + if (!gid_valid(*gid)) + return 0; *mount_opts |= SF_SETGID; break; case Opt_setuid: if (match_int(&args[0], &option)) return 0; - *uid = option; + *uid = make_kuid(current_user_ns(), option); + if (!uid_valid(*uid)) + return 0; *mount_opts |= SF_SETUID; break; case Opt_verbose: @@ -301,8 +305,8 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) int num_bm; int i, j; s32 key; - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; int reserved; unsigned long mount_flags; int tmp_flags; /* fix remount prototype... */ @@ -527,8 +531,8 @@ affs_remount(struct super_block *sb, int *flags, char *data) { struct affs_sb_info *sbi = AFFS_SB(sb); int blocksize; - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; int mode; int reserved; int root_block; diff --git a/fs/befs/befs.h b/fs/befs/befs.h index d9a40abda6b7..b26642839156 100644 --- a/fs/befs/befs.h +++ b/fs/befs/befs.h @@ -20,8 +20,8 @@ typedef u64 befs_blocknr_t; */ typedef struct befs_mount_options { - gid_t gid; - uid_t uid; + kgid_t gid; + kuid_t uid; int use_gid; int use_uid; int debug; diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index cf7f3c67c8b7..7f73a692bfd0 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -15,6 +15,7 @@ #include <linux/vfs.h> #include <linux/parser.h> #include <linux/namei.h> +#include <linux/sched.h> #include "befs.h" #include "btree.h" @@ -352,9 +353,11 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino) */ inode->i_uid = befs_sb->mount_opts.use_uid ? - befs_sb->mount_opts.uid : (uid_t) fs32_to_cpu(sb, raw_inode->uid); + befs_sb->mount_opts.uid : + make_kuid(&init_user_ns, fs32_to_cpu(sb, raw_inode->uid)); inode->i_gid = befs_sb->mount_opts.use_gid ? - befs_sb->mount_opts.gid : (gid_t) fs32_to_cpu(sb, raw_inode->gid); + befs_sb->mount_opts.gid : + make_kgid(&init_user_ns, fs32_to_cpu(sb, raw_inode->gid)); set_nlink(inode, 1); @@ -674,10 +677,12 @@ parse_options(char *options, befs_mount_options * opts) char *p; substring_t args[MAX_OPT_ARGS]; int option; + kuid_t uid; + kgid_t gid; /* Initialize options */ - opts->uid = 0; - opts->gid = 0; + opts->uid = GLOBAL_ROOT_UID; + opts->gid = GLOBAL_ROOT_GID; opts->use_uid = 0; opts->use_gid = 0; opts->iocharset = NULL; @@ -696,23 +701,29 @@ parse_options(char *options, befs_mount_options * opts) case Opt_uid: if (match_int(&args[0], &option)) return 0; - if (option < 0) { + uid = INVALID_UID; + if (option >= 0) + uid = make_kuid(current_user_ns(), option); + if (!uid_valid(uid)) { printk(KERN_ERR "BeFS: Invalid uid %d, " "using default\n", option); break; } - opts->uid = option; + opts->uid = uid; opts->use_uid = 1; break; case Opt_gid: if (match_int(&args[0], &option)) return 0; - if (option < 0) { + gid = INVALID_GID; + if (option >= 0) + gid = make_kgid(current_user_ns(), option); + if (!gid_valid(gid)) { printk(KERN_ERR "BeFS: Invalid gid %d, " "using default\n", option); break; } - opts->gid = option; + opts->gid = gid; opts->use_gid = 1; break; case Opt_charset: diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 9870417c26e7..b242beba58ed 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -76,8 +76,8 @@ struct inode *bfs_iget(struct super_block *sb, unsigned long ino) BFS_I(inode)->i_sblock = le32_to_cpu(di->i_sblock); BFS_I(inode)->i_eblock = le32_to_cpu(di->i_eblock); BFS_I(inode)->i_dsk_ino = le16_to_cpu(di->i_ino); - inode->i_uid = le32_to_cpu(di->i_uid); - inode->i_gid = le32_to_cpu(di->i_gid); + i_uid_write(inode, le32_to_cpu(di->i_uid)); + i_gid_write(inode, le32_to_cpu(di->i_gid)); set_nlink(inode, le32_to_cpu(di->i_nlink)); inode->i_size = BFS_FILESIZE(di); inode->i_blocks = BFS_FILEBLOCKS(di); @@ -139,8 +139,8 @@ static int bfs_write_inode(struct inode *inode, struct writeback_control *wbc) di->i_ino = cpu_to_le16(ino); di->i_mode = cpu_to_le32(inode->i_mode); - di->i_uid = cpu_to_le32(inode->i_uid); - di->i_gid = cpu_to_le32(inode->i_gid); + di->i_uid = cpu_to_le32(i_uid_read(inode)); + di->i_gid = cpu_to_le32(i_gid_read(inode)); di->i_nlink = cpu_to_le32(inode->i_nlink); di->i_atime = cpu_to_le32(inode->i_atime.tv_sec); di->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec); diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 761e2cd8fed1..0c16e3dbfd56 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -61,7 +61,7 @@ struct posix_acl *btrfs_get_acl(struct inode *inode, int type) size = __btrfs_getxattr(inode, name, value, size); } if (size > 0) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); } else if (size == -ENOENT || size == -ENODATA || size == 0) { /* FIXME, who returns -ENOENT? I think nobody */ acl = NULL; @@ -91,7 +91,7 @@ static int btrfs_xattr_acl_get(struct dentry *dentry, const char *name, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - ret = posix_acl_to_xattr(acl, value, size); + ret = posix_acl_to_xattr(&init_user_ns, acl, value, size); posix_acl_release(acl); return ret; @@ -141,7 +141,7 @@ static int btrfs_set_acl(struct btrfs_trans_handle *trans, goto out; } - ret = posix_acl_to_xattr(acl, value, size); + ret = posix_acl_to_xattr(&init_user_ns, acl, value, size); if (ret < 0) goto out; } @@ -169,7 +169,7 @@ static int btrfs_xattr_acl_set(struct dentry *dentry, const char *name, return -EOPNOTSUPP; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 07d5eeb1e6f1..52c85e2b95d0 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -1715,8 +1715,8 @@ static void fill_stack_inode_item(struct btrfs_trans_handle *trans, struct btrfs_inode_item *inode_item, struct inode *inode) { - btrfs_set_stack_inode_uid(inode_item, inode->i_uid); - btrfs_set_stack_inode_gid(inode_item, inode->i_gid); + btrfs_set_stack_inode_uid(inode_item, i_uid_read(inode)); + btrfs_set_stack_inode_gid(inode_item, i_gid_read(inode)); btrfs_set_stack_inode_size(inode_item, BTRFS_I(inode)->disk_i_size); btrfs_set_stack_inode_mode(inode_item, inode->i_mode); btrfs_set_stack_inode_nlink(inode_item, inode->i_nlink); @@ -1764,8 +1764,8 @@ int btrfs_fill_inode(struct inode *inode, u32 *rdev) inode_item = &delayed_node->inode_item; - inode->i_uid = btrfs_stack_inode_uid(inode_item); - inode->i_gid = btrfs_stack_inode_gid(inode_item); + i_uid_write(inode, btrfs_stack_inode_uid(inode_item)); + i_gid_write(inode, btrfs_stack_inode_gid(inode_item)); btrfs_i_size_write(inode, btrfs_stack_inode_size(inode_item)); inode->i_mode = btrfs_stack_inode_mode(inode_item); set_nlink(inode, btrfs_stack_inode_nlink(inode_item)); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 316b07a866d2..2a028a58619c 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -2572,8 +2572,8 @@ static void btrfs_read_locked_inode(struct inode *inode) struct btrfs_inode_item); inode->i_mode = btrfs_inode_mode(leaf, inode_item); set_nlink(inode, btrfs_inode_nlink(leaf, inode_item)); - inode->i_uid = btrfs_inode_uid(leaf, inode_item); - inode->i_gid = btrfs_inode_gid(leaf, inode_item); + i_uid_write(inode, btrfs_inode_uid(leaf, inode_item)); + i_gid_write(inode, btrfs_inode_gid(leaf, inode_item)); btrfs_i_size_write(inode, btrfs_inode_size(leaf, inode_item)); tspec = btrfs_inode_atime(inode_item); @@ -2651,8 +2651,8 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, struct btrfs_inode_item *item, struct inode *inode) { - btrfs_set_inode_uid(leaf, item, inode->i_uid); - btrfs_set_inode_gid(leaf, item, inode->i_gid); + btrfs_set_inode_uid(leaf, item, i_uid_read(inode)); + btrfs_set_inode_gid(leaf, item, i_gid_read(inode)); btrfs_set_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size); btrfs_set_inode_mode(leaf, item, inode->i_mode); btrfs_set_inode_nlink(leaf, item, inode->i_nlink); diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 9df50fa8a078..27bfce58da3b 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -575,13 +575,13 @@ fail: */ static inline int btrfs_check_sticky(struct inode *dir, struct inode *inode) { - uid_t fsuid = current_fsuid(); + kuid_t fsuid = current_fsuid(); if (!(dir->i_mode & S_ISVTX)) return 0; - if (inode->i_uid == fsuid) + if (uid_eq(inode->i_uid, fsuid)) return 0; - if (dir->i_uid == fsuid) + if (uid_eq(dir->i_uid, fsuid)) return 0; return !capable(CAP_FOWNER); } diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c index 0074362d9f7f..a9d35b0e06cf 100644 --- a/fs/configfs/inode.c +++ b/fs/configfs/inode.c @@ -79,8 +79,8 @@ int configfs_setattr(struct dentry * dentry, struct iattr * iattr) return -ENOMEM; /* assign default attributes */ sd_iattr->ia_mode = sd->s_mode; - sd_iattr->ia_uid = 0; - sd_iattr->ia_gid = 0; + sd_iattr->ia_uid = GLOBAL_ROOT_UID; + sd_iattr->ia_gid = GLOBAL_ROOT_GID; sd_iattr->ia_atime = sd_iattr->ia_mtime = sd_iattr->ia_ctime = CURRENT_TIME; sd->s_iattr = sd_iattr; } diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 28cca01ca9c9..c6c3f91ecf06 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -90,8 +90,8 @@ static struct inode *get_cramfs_inode(struct super_block *sb, } inode->i_mode = cramfs_inode->mode; - inode->i_uid = cramfs_inode->uid; - inode->i_gid = cramfs_inode->gid; + i_uid_write(inode, cramfs_inode->uid); + i_gid_write(inode, cramfs_inode->gid); /* if the lower 2 bits are zero, the inode contains data */ if (!(inode->i_ino & 3)) { diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 6393fd61d5c4..b607d92cdf24 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -128,8 +128,8 @@ static inline int debugfs_positive(struct dentry *dentry) } struct debugfs_mount_opts { - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; umode_t mode; }; @@ -156,6 +156,8 @@ static int debugfs_parse_options(char *data, struct debugfs_mount_opts *opts) substring_t args[MAX_OPT_ARGS]; int option; int token; + kuid_t uid; + kgid_t gid; char *p; opts->mode = DEBUGFS_DEFAULT_MODE; @@ -169,12 +171,18 @@ static int debugfs_parse_options(char *data, struct debugfs_mount_opts *opts) case Opt_uid: if (match_int(&args[0], &option)) return -EINVAL; - opts->uid = option; + uid = make_kuid(current_user_ns(), option); + if (!uid_valid(uid)) + return -EINVAL; + opts->uid = uid; break; case Opt_gid: if (match_octal(&args[0], &option)) return -EINVAL; - opts->gid = option; + gid = make_kgid(current_user_ns(), option); + if (!gid_valid(gid)) + return -EINVAL; + opts->gid = gid; break; case Opt_mode: if (match_octal(&args[0], &option)) @@ -226,10 +234,12 @@ static int debugfs_show_options(struct seq_file *m, struct dentry *root) struct debugfs_fs_info *fsi = root->d_sb->s_fs_info; struct debugfs_mount_opts *opts = &fsi->mount_opts; - if (opts->uid != 0) - seq_printf(m, ",uid=%u", opts->uid); - if (opts->gid != 0) - seq_printf(m, ",gid=%u", opts->gid); + if (!uid_eq(opts->uid, GLOBAL_ROOT_UID)) + seq_printf(m, ",uid=%u", + from_kuid_munged(&init_user_ns, opts->uid)); + if (!gid_eq(opts->gid, GLOBAL_ROOT_GID)) + seq_printf(m, ",gid=%u", + from_kgid_munged(&init_user_ns, opts->gid)); if (opts->mode != DEBUGFS_DEFAULT_MODE) seq_printf(m, ",mode=%o", opts->mode); diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index 9b627c15010a..24bb043e50d9 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -545,11 +545,12 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags goto out_free; } - if (check_ruid && path.dentry->d_inode->i_uid != current_uid()) { + if (check_ruid && !uid_eq(path.dentry->d_inode->i_uid, current_uid())) { rc = -EPERM; printk(KERN_ERR "Mount of device (uid: %d) not owned by " "requested user (uid: %d)\n", - path.dentry->d_inode->i_uid, current_uid()); + i_uid_read(path.dentry->d_inode), + from_kuid(&init_user_ns, current_uid())); goto out_free; } diff --git a/fs/ecryptfs/messaging.c b/fs/ecryptfs/messaging.c index b29bb8bfa8d9..5fa2471796c2 100644 --- a/fs/ecryptfs/messaging.c +++ b/fs/ecryptfs/messaging.c @@ -33,7 +33,7 @@ static struct hlist_head *ecryptfs_daemon_hash; struct mutex ecryptfs_daemon_hash_mux; static int ecryptfs_hash_bits; #define ecryptfs_current_euid_hash(uid) \ - hash_long((unsigned long)current_euid(), ecryptfs_hash_bits) + hash_long((unsigned long)from_kuid(&init_user_ns, current_euid()), ecryptfs_hash_bits) static u32 ecryptfs_msg_counter; static struct ecryptfs_msg_ctx *ecryptfs_msg_ctx_arr; @@ -121,8 +121,7 @@ int ecryptfs_find_daemon_by_euid(struct ecryptfs_daemon **daemon) hlist_for_each_entry(*daemon, elem, &ecryptfs_daemon_hash[ecryptfs_current_euid_hash()], euid_chain) { - if ((*daemon)->file->f_cred->euid == current_euid() && - (*daemon)->file->f_cred->user_ns == current_user_ns()) { + if (uid_eq((*daemon)->file->f_cred->euid, current_euid())) { rc = 0; goto out; } diff --git a/fs/efs/inode.c b/fs/efs/inode.c index bc84f365d75c..f3913eb2c474 100644 --- a/fs/efs/inode.c +++ b/fs/efs/inode.c @@ -97,8 +97,8 @@ struct inode *efs_iget(struct super_block *super, unsigned long ino) inode->i_mode = be16_to_cpu(efs_inode->di_mode); set_nlink(inode, be16_to_cpu(efs_inode->di_nlink)); - inode->i_uid = (uid_t)be16_to_cpu(efs_inode->di_uid); - inode->i_gid = (gid_t)be16_to_cpu(efs_inode->di_gid); + i_uid_write(inode, (uid_t)be16_to_cpu(efs_inode->di_uid)); + i_gid_write(inode, (gid_t)be16_to_cpu(efs_inode->di_gid)); inode->i_size = be32_to_cpu(efs_inode->di_size); inode->i_atime.tv_sec = be32_to_cpu(efs_inode->di_atime); inode->i_mtime.tv_sec = be32_to_cpu(efs_inode->di_mtime); diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 1562c27a2fab..b56181047751 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -1172,8 +1172,8 @@ struct inode *exofs_iget(struct super_block *sb, unsigned long ino) /* copy stuff from on-disk struct to in-memory struct */ inode->i_mode = le16_to_cpu(fcb.i_mode); - inode->i_uid = le32_to_cpu(fcb.i_uid); - inode->i_gid = le32_to_cpu(fcb.i_gid); + i_uid_write(inode, le32_to_cpu(fcb.i_uid)); + i_gid_write(inode, le32_to_cpu(fcb.i_gid)); set_nlink(inode, le16_to_cpu(fcb.i_links_count)); inode->i_ctime.tv_sec = (signed)le32_to_cpu(fcb.i_ctime); inode->i_atime.tv_sec = (signed)le32_to_cpu(fcb.i_atime); @@ -1385,8 +1385,8 @@ static int exofs_update_inode(struct inode *inode, int do_sync) fcb = &args->fcb; fcb->i_mode = cpu_to_le16(inode->i_mode); - fcb->i_uid = cpu_to_le32(inode->i_uid); - fcb->i_gid = cpu_to_le32(inode->i_gid); + fcb->i_uid = cpu_to_le32(i_uid_read(inode)); + fcb->i_gid = cpu_to_le32(i_gid_read(inode)); fcb->i_links_count = cpu_to_le16(inode->i_nlink); fcb->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec); fcb->i_atime = cpu_to_le32(inode->i_atime.tv_sec); diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c index 35d6a3cfd9ff..110b6b371a4e 100644 --- a/fs/ext2/acl.c +++ b/fs/ext2/acl.c @@ -53,16 +53,23 @@ ext2_acl_from_disk(const void *value, size_t size) case ACL_OTHER: value = (char *)value + sizeof(ext2_acl_entry_short); - acl->a_entries[n].e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + value = (char *)value + sizeof(ext2_acl_entry); + if ((char *)value > end) + goto fail; + acl->a_entries[n].e_uid = + make_kuid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; case ACL_GROUP: value = (char *)value + sizeof(ext2_acl_entry); if ((char *)value > end) goto fail; - acl->a_entries[n].e_id = - le32_to_cpu(entry->e_id); + acl->a_entries[n].e_gid = + make_kgid(&init_user_ns, + le32_to_cpu(entry->e_id)); break; default: @@ -96,14 +103,19 @@ ext2_acl_to_disk(const struct posix_acl *acl, size_t *size) ext_acl->a_version = cpu_to_le32(EXT2_ACL_VERSION); e = (char *)ext_acl + sizeof(ext2_acl_header); for (n=0; n < acl->a_count; n++) { + const struct posix_acl_entry *acl_e = &acl->a_entries[n]; ext2_acl_entry *entry = (ext2_acl_entry *)e; - entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); - entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); - switch(acl->a_entries[n].e_tag) { + entry->e_tag = cpu_to_le16(acl_e->e_tag); + entry->e_perm = cpu_to_le16(acl_e->e_perm); + switch(acl_e->e_tag) { case ACL_USER: + entry->e_id = cpu_to_le32( + from_kuid(&init_user_ns, acl_e->e_uid)); + e += sizeof(ext2_acl_entry); + break; case ACL_GROUP: - entry->e_id = - cpu_to_le32(acl->a_entries[n].e_id); + entry->e_id = cpu_to_le32( + from_kgid(&init_user_ns, acl_e->e_gid)); e += sizeof(ext2_acl_entry); break; @@ -350,7 +362,7 @@ ext2_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -371,7 +383,7 @@ ext2_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c index c76832c8d192..dbb5ad59a7fc 100644 --- a/fs/ext3/acl.c +++ b/fs/ext3/acl.c @@ -48,16 +48,23 @@ ext3_acl_from_disk(const void *value, size_t size) case ACL_OTHER: value = (char *)value + sizeof(ext3_acl_entry_short); - acl->a_entries[n].e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + value = (char *)value + sizeof(ext3_acl_entry); + if ((char *)value > end) + goto fail; + acl->a_entries[n].e_uid = + make_kuid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; case ACL_GROUP: value = (char *)value + sizeof(ext3_acl_entry); if ((char *)value > end) goto fail; - acl->a_entries[n].e_id = - le32_to_cpu(entry->e_id); + acl->a_entries[n].e_gid = + make_kgid(&init_user_ns, + le32_to_cpu(entry->e_id)); break; default: @@ -91,14 +98,19 @@ ext3_acl_to_disk(const struct posix_acl *acl, size_t *size) ext_acl->a_version = cpu_to_le32(EXT3_ACL_VERSION); e = (char *)ext_acl + sizeof(ext3_acl_header); for (n=0; n < acl->a_count; n++) { + const struct posix_acl_entry *acl_e = &acl->a_entries[n]; ext3_acl_entry *entry = (ext3_acl_entry *)e; - entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); - entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); - switch(acl->a_entries[n].e_tag) { + entry->e_tag = cpu_to_le16(acl_e->e_tag); + entry->e_perm = cpu_to_le16(acl_e->e_perm); + switch(acl_e->e_tag) { case ACL_USER: + entry->e_id = cpu_to_le32( + from_kuid(&init_user_ns, acl_e->e_uid)); + e += sizeof(ext3_acl_entry); + break; case ACL_GROUP: - entry->e_id = - cpu_to_le32(acl->a_entries[n].e_id); + entry->e_id = cpu_to_le32( + from_kgid(&init_user_ns, acl_e->e_gid)); e += sizeof(ext3_acl_entry); break; @@ -369,7 +381,7 @@ ext3_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -392,7 +404,7 @@ ext3_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 8c892e93d8e7..09b8455bd7eb 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -2803,7 +2803,7 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf) static inline struct inode *dquot_to_inode(struct dquot *dquot) { - return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type]; + return sb_dqopt(dquot->dq_sb)->files[dquot->dq_id.type]; } static int ext3_write_dquot(struct dquot *dquot) diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c index a5c29bb3b835..d3c5b88fd89f 100644 --- a/fs/ext4/acl.c +++ b/fs/ext4/acl.c @@ -55,16 +55,23 @@ ext4_acl_from_disk(const void *value, size_t size) case ACL_OTHER: value = (char *)value + sizeof(ext4_acl_entry_short); - acl->a_entries[n].e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + value = (char *)value + sizeof(ext4_acl_entry); + if ((char *)value > end) + goto fail; + acl->a_entries[n].e_uid = + make_kuid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; case ACL_GROUP: value = (char *)value + sizeof(ext4_acl_entry); if ((char *)value > end) goto fail; - acl->a_entries[n].e_id = - le32_to_cpu(entry->e_id); + acl->a_entries[n].e_gid = + make_kgid(&init_user_ns, + le32_to_cpu(entry->e_id)); break; default: @@ -98,13 +105,19 @@ ext4_acl_to_disk(const struct posix_acl *acl, size_t *size) ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION); e = (char *)ext_acl + sizeof(ext4_acl_header); for (n = 0; n < acl->a_count; n++) { + const struct posix_acl_entry *acl_e = &acl->a_entries[n]; ext4_acl_entry *entry = (ext4_acl_entry *)e; - entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); - entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); - switch (acl->a_entries[n].e_tag) { + entry->e_tag = cpu_to_le16(acl_e->e_tag); + entry->e_perm = cpu_to_le16(acl_e->e_perm); + switch (acl_e->e_tag) { case ACL_USER: + entry->e_id = cpu_to_le32( + from_kuid(&init_user_ns, acl_e->e_uid)); + e += sizeof(ext4_acl_entry); + break; case ACL_GROUP: - entry->e_id = cpu_to_le32(acl->a_entries[n].e_id); + entry->e_id = cpu_to_le32( + from_kgid(&init_user_ns, acl_e->e_gid)); e += sizeof(ext4_acl_entry); break; @@ -374,7 +387,7 @@ ext4_xattr_get_acl(struct dentry *dentry, const char *name, void *buffer, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -397,7 +410,7 @@ ext4_xattr_set_acl(struct dentry *dentry, const char *name, const void *value, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c6e0cb3d1f4a..1f15cc836fbd 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4791,7 +4791,7 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf) static inline struct inode *dquot_to_inode(struct dquot *dquot) { - return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type]; + return sb_dqopt(dquot->dq_sb)->files[dquot->dq_id.type]; } static int ext4_write_dquot(struct dquot *dquot) diff --git a/fs/fat/fat.h b/fs/fat/fat.h index 2deeeb86f331..7d8e0dcac5d5 100644 --- a/fs/fat/fat.h +++ b/fs/fat/fat.h @@ -23,8 +23,8 @@ #define FAT_ERRORS_RO 3 /* remount r/o on error */ struct fat_mount_options { - uid_t fs_uid; - gid_t fs_gid; + kuid_t fs_uid; + kgid_t fs_gid; unsigned short fs_fmask; unsigned short fs_dmask; unsigned short codepage; /* Codepage for shortname conversions */ diff --git a/fs/fat/file.c b/fs/fat/file.c index e007b8bd8e5e..a62e0ecbe2db 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -352,7 +352,7 @@ static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode) { umode_t allow_utime = sbi->options.allow_utime; - if (current_fsuid() != inode->i_uid) { + if (!uid_eq(current_fsuid(), inode->i_uid)) { if (in_group_p(inode->i_gid)) allow_utime >>= 3; if (allow_utime & MAY_WRITE) @@ -407,9 +407,9 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr) } if (((attr->ia_valid & ATTR_UID) && - (attr->ia_uid != sbi->options.fs_uid)) || + (!uid_eq(attr->ia_uid, sbi->options.fs_uid))) || ((attr->ia_valid & ATTR_GID) && - (attr->ia_gid != sbi->options.fs_gid)) || + (!gid_eq(attr->ia_gid, sbi->options.fs_gid))) || ((attr->ia_valid & ATTR_MODE) && (attr->ia_mode & ~FAT_VALID_MODE))) error = -EPERM; diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 05e897fe9866..47d9eb0be886 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -791,10 +791,12 @@ static int fat_show_options(struct seq_file *m, struct dentry *root) struct fat_mount_options *opts = &sbi->options; int isvfat = opts->isvfat; - if (opts->fs_uid != 0) - seq_printf(m, ",uid=%u", opts->fs_uid); - if (opts->fs_gid != 0) - seq_printf(m, ",gid=%u", opts->fs_gid); + if (!uid_eq(opts->fs_uid, GLOBAL_ROOT_UID)) + seq_printf(m, ",uid=%u", + from_kuid_munged(&init_user_ns, opts->fs_uid)); + if (!gid_eq(opts->fs_gid, GLOBAL_ROOT_GID)) + seq_printf(m, ",gid=%u", + from_kgid_munged(&init_user_ns, opts->fs_gid)); seq_printf(m, ",fmask=%04o", opts->fs_fmask); seq_printf(m, ",dmask=%04o", opts->fs_dmask); if (opts->allow_utime) @@ -1037,12 +1039,16 @@ static int parse_options(struct super_block *sb, char *options, int is_vfat, case Opt_uid: if (match_int(&args[0], &option)) return 0; - opts->fs_uid = option; + opts->fs_uid = make_kuid(current_user_ns(), option); + if (!uid_valid(opts->fs_uid)) + return 0; break; case Opt_gid: if (match_int(&args[0], &option)) return 0; - opts->fs_gid = option; + opts->fs_gid = make_kgid(current_user_ns(), option); + if (!gid_valid(opts->fs_gid)) + return 0; break; case Opt_umask: if (match_octal(&args[0], &option)) diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c index ef67c95f12d4..f47df72cef17 100644 --- a/fs/freevxfs/vxfs_inode.c +++ b/fs/freevxfs/vxfs_inode.c @@ -224,8 +224,8 @@ vxfs_iinit(struct inode *ip, struct vxfs_inode_info *vip) { ip->i_mode = vxfs_transmod(vip); - ip->i_uid = (uid_t)vip->vii_uid; - ip->i_gid = (gid_t)vip->vii_gid; + i_uid_write(ip, (uid_t)vip->vii_uid); + i_gid_write(ip, (gid_t)vip->vii_gid); set_nlink(ip, vip->vii_nlink); ip->i_size = vip->vii_size; diff --git a/fs/generic_acl.c b/fs/generic_acl.c index d0dddaceac59..b3f3676796d3 100644 --- a/fs/generic_acl.c +++ b/fs/generic_acl.c @@ -56,7 +56,7 @@ generic_acl_get(struct dentry *dentry, const char *name, void *buffer, acl = get_cached_acl(dentry->d_inode, type); if (!acl) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -77,7 +77,7 @@ generic_acl_set(struct dentry *dentry, const char *name, const void *value, if (!inode_owner_or_capable(inode)) return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); } diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c index bd4a5892c93c..f850020ad906 100644 --- a/fs/gfs2/acl.c +++ b/fs/gfs2/acl.c @@ -63,7 +63,7 @@ struct posix_acl *gfs2_get_acl(struct inode *inode, int type) if (len == 0) return NULL; - acl = posix_acl_from_xattr(data, len); + acl = posix_acl_from_xattr(&init_user_ns, data, len); kfree(data); return acl; } @@ -88,13 +88,13 @@ static int gfs2_acl_set(struct inode *inode, int type, struct posix_acl *acl) const char *name = gfs2_acl_name(type); BUG_ON(name == NULL); - len = posix_acl_to_xattr(acl, NULL, 0); + len = posix_acl_to_xattr(&init_user_ns, acl, NULL, 0); if (len == 0) return 0; data = kmalloc(len, GFP_NOFS); if (data == NULL) return -ENOMEM; - error = posix_acl_to_xattr(acl, data, len); + error = posix_acl_to_xattr(&init_user_ns, acl, data, len); if (error < 0) goto out; error = __gfs2_xattr_set(inode, name, data, len, 0, GFS2_EATYPE_SYS); @@ -166,12 +166,12 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr) if (error) return error; - len = posix_acl_to_xattr(acl, NULL, 0); + len = posix_acl_to_xattr(&init_user_ns, acl, NULL, 0); data = kmalloc(len, GFP_NOFS); error = -ENOMEM; if (data == NULL) goto out; - posix_acl_to_xattr(acl, data, len); + posix_acl_to_xattr(&init_user_ns, acl, data, len); error = gfs2_xattr_acl_chmod(ip, attr, data); kfree(data); set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl); @@ -212,7 +212,7 @@ static int gfs2_xattr_system_get(struct dentry *dentry, const char *name, if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -245,7 +245,7 @@ static int gfs2_xattr_system_set(struct dentry *dentry, const char *name, if (!value) goto set_acl; - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (!acl) { /* * acl_set_file(3) may request that we set default ACLs with diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 4021deca61ef..40c4b0d42fa8 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -1071,8 +1071,10 @@ int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid) if (be64_to_cpu(qd->qd_qb.qb_limit) && (s64)be64_to_cpu(qd->qd_qb.qb_limit) < value) { print_message(qd, "exceeded"); - quota_send_warning(test_bit(QDF_USER, &qd->qd_flags) ? - USRQUOTA : GRPQUOTA, qd->qd_id, + quota_send_warning(make_kqid(&init_user_ns, + test_bit(QDF_USER, &qd->qd_flags) ? + USRQUOTA : GRPQUOTA, + qd->qd_id), sdp->sd_vfs->s_dev, QUOTA_NL_BHARDWARN); error = -EDQUOT; @@ -1082,8 +1084,10 @@ int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid) time_after_eq(jiffies, qd->qd_last_warn + gfs2_tune_get(sdp, gt_quota_warn_period) * HZ)) { - quota_send_warning(test_bit(QDF_USER, &qd->qd_flags) ? - USRQUOTA : GRPQUOTA, qd->qd_id, + quota_send_warning(make_kqid(&init_user_ns, + test_bit(QDF_USER, &qd->qd_flags) ? + USRQUOTA : GRPQUOTA, + qd->qd_id), sdp->sd_vfs->s_dev, QUOTA_NL_BSOFTWARN); error = print_message(qd, "warning"); qd->qd_last_warn = jiffies; @@ -1470,7 +1474,7 @@ static int gfs2_quota_get_xstate(struct super_block *sb, return 0; } -static int gfs2_get_dqblk(struct super_block *sb, int type, qid_t id, +static int gfs2_get_dqblk(struct super_block *sb, struct kqid qid, struct fs_disk_quota *fdq) { struct gfs2_sbd *sdp = sb->s_fs_info; @@ -1478,20 +1482,21 @@ static int gfs2_get_dqblk(struct super_block *sb, int type, qid_t id, struct gfs2_quota_data *qd; struct gfs2_holder q_gh; int error; + int type; memset(fdq, 0, sizeof(struct fs_disk_quota)); if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) return -ESRCH; /* Crazy XFS error code */ - if (type == USRQUOTA) + if (qid.type == USRQUOTA) type = QUOTA_USER; - else if (type == GRPQUOTA) + else if (qid.type == GRPQUOTA) type = QUOTA_GROUP; else return -EINVAL; - error = qd_get(sdp, type, id, &qd); + error = qd_get(sdp, type, from_kqid(&init_user_ns, qid), &qd); if (error) return error; error = do_glock(qd, FORCE, &q_gh); @@ -1501,7 +1506,7 @@ static int gfs2_get_dqblk(struct super_block *sb, int type, qid_t id, qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lvb; fdq->d_version = FS_DQUOT_VERSION; fdq->d_flags = (type == QUOTA_USER) ? FS_USER_QUOTA : FS_GROUP_QUOTA; - fdq->d_id = id; + fdq->d_id = from_kqid(&init_user_ns, qid); fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit) << sdp->sd_fsb2bb_shift; fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn) << sdp->sd_fsb2bb_shift; fdq->d_bcount = be64_to_cpu(qlvb->qb_value) << sdp->sd_fsb2bb_shift; @@ -1515,7 +1520,7 @@ out: /* GFS2 only supports a subset of the XFS fields */ #define GFS2_FIELDMASK (FS_DQ_BSOFT|FS_DQ_BHARD|FS_DQ_BCOUNT) -static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id, +static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid, struct fs_disk_quota *fdq) { struct gfs2_sbd *sdp = sb->s_fs_info; @@ -1527,11 +1532,12 @@ static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id, int alloc_required; loff_t offset; int error; + int type; if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF) return -ESRCH; /* Crazy XFS error code */ - switch(type) { + switch(qid.type) { case USRQUOTA: type = QUOTA_USER; if (fdq->d_flags != FS_USER_QUOTA) @@ -1548,10 +1554,10 @@ static int gfs2_set_dqblk(struct super_block *sb, int type, qid_t id, if (fdq->d_fieldmask & ~GFS2_FIELDMASK) return -EINVAL; - if (fdq->d_id != id) + if (fdq->d_id != from_kqid(&init_user_ns, qid)) return -EINVAL; - error = qd_get(sdp, type, id, &qd); + error = qd_get(sdp, type, from_kqid(&init_user_ns, qid), &qd); if (error) return error; diff --git a/fs/hfs/hfs_fs.h b/fs/hfs/hfs_fs.h index 8275175acf6e..693df9fe52b2 100644 --- a/fs/hfs/hfs_fs.h +++ b/fs/hfs/hfs_fs.h @@ -134,8 +134,8 @@ struct hfs_sb_info { permissions on all files */ umode_t s_dir_umask; /* The umask applied to the permissions on all dirs */ - uid_t s_uid; /* The uid of all files */ - gid_t s_gid; /* The gid of all files */ + kuid_t s_uid; /* The uid of all files */ + kgid_t s_gid; /* The gid of all files */ int session, part; struct nls_table *nls_io, *nls_disk; diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c index 553909395270..0b35903219bc 100644 --- a/fs/hfs/inode.c +++ b/fs/hfs/inode.c @@ -594,9 +594,9 @@ int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr) /* no uig/gid changes and limit which mode bits can be set */ if (((attr->ia_valid & ATTR_UID) && - (attr->ia_uid != hsb->s_uid)) || + (!uid_eq(attr->ia_uid, hsb->s_uid))) || ((attr->ia_valid & ATTR_GID) && - (attr->ia_gid != hsb->s_gid)) || + (!gid_eq(attr->ia_gid, hsb->s_gid))) || ((attr->ia_valid & ATTR_MODE) && ((S_ISDIR(inode->i_mode) && (attr->ia_mode != inode->i_mode)) || diff --git a/fs/hfs/super.c b/fs/hfs/super.c index 4eb873e0c07b..0b63d135a092 100644 --- a/fs/hfs/super.c +++ b/fs/hfs/super.c @@ -138,7 +138,9 @@ static int hfs_show_options(struct seq_file *seq, struct dentry *root) seq_printf(seq, ",creator=%.4s", (char *)&sbi->s_creator); if (sbi->s_type != cpu_to_be32(0x3f3f3f3f)) seq_printf(seq, ",type=%.4s", (char *)&sbi->s_type); - seq_printf(seq, ",uid=%u,gid=%u", sbi->s_uid, sbi->s_gid); + seq_printf(seq, ",uid=%u,gid=%u", + from_kuid_munged(&init_user_ns, sbi->s_uid), + from_kgid_munged(&init_user_ns, sbi->s_gid)); if (sbi->s_file_umask != 0133) seq_printf(seq, ",file_umask=%o", sbi->s_file_umask); if (sbi->s_dir_umask != 0022) @@ -254,14 +256,22 @@ static int parse_options(char *options, struct hfs_sb_info *hsb) printk(KERN_ERR "hfs: uid requires an argument\n"); return 0; } - hsb->s_uid = (uid_t)tmp; + hsb->s_uid = make_kuid(current_user_ns(), (uid_t)tmp); + if (!uid_valid(hsb->s_uid)) { + printk(KERN_ERR "hfs: invalid uid %d\n", tmp); + return 0; + } break; case opt_gid: if (match_int(&args[0], &tmp)) { printk(KERN_ERR "hfs: gid requires an argument\n"); return 0; } - hsb->s_gid = (gid_t)tmp; + hsb->s_gid = make_kgid(current_user_ns(), (gid_t)tmp); + if (!gid_valid(hsb->s_gid)) { + printk(KERN_ERR "hfs: invalid gid %d\n", tmp); + return 0; + } break; case opt_umask: if (match_octal(&args[0], &tmp)) { diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c index ec2a9c23f0c9..798d9c4c5e71 100644 --- a/fs/hfsplus/catalog.c +++ b/fs/hfsplus/catalog.c @@ -80,8 +80,8 @@ void hfsplus_cat_set_perms(struct inode *inode, struct hfsplus_perm *perms) perms->userflags = HFSPLUS_I(inode)->userflags; perms->mode = cpu_to_be16(inode->i_mode); - perms->owner = cpu_to_be32(inode->i_uid); - perms->group = cpu_to_be32(inode->i_gid); + perms->owner = cpu_to_be32(i_uid_read(inode)); + perms->group = cpu_to_be32(i_gid_read(inode)); if (S_ISREG(inode->i_mode)) perms->dev = cpu_to_be32(inode->i_nlink); diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h index 558dbb463a4e..c571de224b15 100644 --- a/fs/hfsplus/hfsplus_fs.h +++ b/fs/hfsplus/hfsplus_fs.h @@ -149,8 +149,8 @@ struct hfsplus_sb_info { u32 type; umode_t umask; - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; int part, session; unsigned long flags; diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c index 3d8b4a675ba0..2172aa5976f5 100644 --- a/fs/hfsplus/inode.c +++ b/fs/hfsplus/inode.c @@ -233,12 +233,12 @@ static void hfsplus_get_perms(struct inode *inode, mode = be16_to_cpu(perms->mode); - inode->i_uid = be32_to_cpu(perms->owner); - if (!inode->i_uid && !mode) + i_uid_write(inode, be32_to_cpu(perms->owner)); + if (!i_uid_read(inode) && !mode) inode->i_uid = sbi->uid; - inode->i_gid = be32_to_cpu(perms->group); - if (!inode->i_gid && !mode) + i_gid_write(inode, be32_to_cpu(perms->group)); + if (!i_gid_read(inode) && !mode) inode->i_gid = sbi->gid; if (dir) { diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c index 06fa5618600c..ed257c671615 100644 --- a/fs/hfsplus/options.c +++ b/fs/hfsplus/options.c @@ -135,14 +135,22 @@ int hfsplus_parse_options(char *input, struct hfsplus_sb_info *sbi) printk(KERN_ERR "hfs: uid requires an argument\n"); return 0; } - sbi->uid = (uid_t)tmp; + sbi->uid = make_kuid(current_user_ns(), (uid_t)tmp); + if (!uid_valid(sbi->uid)) { + printk(KERN_ERR "hfs: invalid uid specified\n"); + return 0; + } break; case opt_gid: if (match_int(&args[0], &tmp)) { printk(KERN_ERR "hfs: gid requires an argument\n"); return 0; } - sbi->gid = (gid_t)tmp; + sbi->gid = make_kgid(current_user_ns(), (gid_t)tmp); + if (!gid_valid(sbi->gid)) { + printk(KERN_ERR "hfs: invalid gid specified\n"); + return 0; + } break; case opt_part: if (match_int(&args[0], &sbi->part)) { @@ -215,7 +223,8 @@ int hfsplus_show_options(struct seq_file *seq, struct dentry *root) if (sbi->type != HFSPLUS_DEF_CR_TYPE) seq_printf(seq, ",type=%.4s", (char *)&sbi->type); seq_printf(seq, ",umask=%o,uid=%u,gid=%u", sbi->umask, - sbi->uid, sbi->gid); + from_kuid_munged(&init_user_ns, sbi->uid), + from_kgid_munged(&init_user_ns, sbi->gid)); if (sbi->part >= 0) seq_printf(seq, ",part=%u", sbi->part); if (sbi->session >= 0) diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index 124146543aa7..6c9f3a9d5e21 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -542,8 +542,8 @@ static int read_name(struct inode *ino, char *name) ino->i_ino = st.ino; ino->i_mode = st.mode; set_nlink(ino, st.nlink); - ino->i_uid = st.uid; - ino->i_gid = st.gid; + i_uid_write(ino, st.uid); + i_gid_write(ino, st.gid); ino->i_atime = st.atime; ino->i_mtime = st.mtime; ino->i_ctime = st.ctime; @@ -808,11 +808,11 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr) } if (attr->ia_valid & ATTR_UID) { attrs.ia_valid |= HOSTFS_ATTR_UID; - attrs.ia_uid = attr->ia_uid; + attrs.ia_uid = from_kuid(&init_user_ns, attr->ia_uid); } if (attr->ia_valid & ATTR_GID) { attrs.ia_valid |= HOSTFS_ATTR_GID; - attrs.ia_gid = attr->ia_gid; + attrs.ia_gid = from_kgid(&init_user_ns, attr->ia_gid); } if (attr->ia_valid & ATTR_SIZE) { attrs.ia_valid |= HOSTFS_ATTR_SIZE; diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h index ac1ead194db5..7102aaecc244 100644 --- a/fs/hpfs/hpfs_fn.h +++ b/fs/hpfs/hpfs_fn.h @@ -63,8 +63,8 @@ struct hpfs_sb_info { unsigned sb_dmap; /* sector number of dnode bit map */ unsigned sb_n_free; /* free blocks for statfs, or -1 */ unsigned sb_n_free_dnodes; /* free dnodes for statfs, or -1 */ - uid_t sb_uid; /* uid from mount options */ - gid_t sb_gid; /* gid from mount options */ + kuid_t sb_uid; /* uid from mount options */ + kgid_t sb_gid; /* gid from mount options */ umode_t sb_mode; /* mode from mount options */ unsigned sb_eas : 2; /* eas: 0-ignore, 1-ro, 2-rw */ unsigned sb_err : 2; /* on errs: 0-cont, 1-ro, 2-panic */ diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c index ed671e0ea784..804a9a842cbc 100644 --- a/fs/hpfs/inode.c +++ b/fs/hpfs/inode.c @@ -7,6 +7,7 @@ */ #include <linux/slab.h> +#include <linux/user_namespace.h> #include "hpfs_fn.h" void hpfs_init_inode(struct inode *i) @@ -60,14 +61,14 @@ void hpfs_read_inode(struct inode *i) if (hpfs_sb(i->i_sb)->sb_eas) { if ((ea = hpfs_get_ea(i->i_sb, fnode, "UID", &ea_size))) { if (ea_size == 2) { - i->i_uid = le16_to_cpu(*(__le16*)ea); + i_uid_write(i, le16_to_cpu(*(__le16*)ea)); hpfs_inode->i_ea_uid = 1; } kfree(ea); } if ((ea = hpfs_get_ea(i->i_sb, fnode, "GID", &ea_size))) { if (ea_size == 2) { - i->i_gid = le16_to_cpu(*(__le16*)ea); + i_gid_write(i, le16_to_cpu(*(__le16*)ea)); hpfs_inode->i_ea_gid = 1; } kfree(ea); @@ -149,13 +150,13 @@ static void hpfs_write_inode_ea(struct inode *i, struct fnode *fnode) hpfs_error(i->i_sb, "fnode %08x has some unknown HPFS386 stuctures", i->i_ino); } else*/ if (hpfs_sb(i->i_sb)->sb_eas >= 2) { __le32 ea; - if ((i->i_uid != hpfs_sb(i->i_sb)->sb_uid) || hpfs_inode->i_ea_uid) { - ea = cpu_to_le32(i->i_uid); + if (!uid_eq(i->i_uid, hpfs_sb(i->i_sb)->sb_uid) || hpfs_inode->i_ea_uid) { + ea = cpu_to_le32(i_uid_read(i)); hpfs_set_ea(i, fnode, "UID", (char*)&ea, 2); hpfs_inode->i_ea_uid = 1; } - if ((i->i_gid != hpfs_sb(i->i_sb)->sb_gid) || hpfs_inode->i_ea_gid) { - ea = cpu_to_le32(i->i_gid); + if (!gid_eq(i->i_gid, hpfs_sb(i->i_sb)->sb_gid) || hpfs_inode->i_ea_gid) { + ea = cpu_to_le32(i_gid_read(i)); hpfs_set_ea(i, fnode, "GID", (char *)&ea, 2); hpfs_inode->i_ea_gid = 1; } @@ -261,9 +262,11 @@ int hpfs_setattr(struct dentry *dentry, struct iattr *attr) hpfs_lock(inode->i_sb); if (inode->i_ino == hpfs_sb(inode->i_sb)->sb_root) goto out_unlock; - if ((attr->ia_valid & ATTR_UID) && attr->ia_uid >= 0x10000) + if ((attr->ia_valid & ATTR_UID) && + from_kuid(&init_user_ns, attr->ia_uid) >= 0x10000) goto out_unlock; - if ((attr->ia_valid & ATTR_GID) && attr->ia_gid >= 0x10000) + if ((attr->ia_valid & ATTR_GID) && + from_kgid(&init_user_ns, attr->ia_gid) >= 0x10000) goto out_unlock; if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size) goto out_unlock; diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c index bc9082482f68..345713d2f8f3 100644 --- a/fs/hpfs/namei.c +++ b/fs/hpfs/namei.c @@ -91,8 +91,8 @@ static int hpfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode) inc_nlink(dir); insert_inode_hash(result); - if (result->i_uid != current_fsuid() || - result->i_gid != current_fsgid() || + if (!uid_eq(result->i_uid, current_fsuid()) || + !gid_eq(result->i_gid, current_fsgid()) || result->i_mode != (mode | S_IFDIR)) { result->i_uid = current_fsuid(); result->i_gid = current_fsgid(); @@ -179,8 +179,8 @@ static int hpfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, b insert_inode_hash(result); - if (result->i_uid != current_fsuid() || - result->i_gid != current_fsgid() || + if (!uid_eq(result->i_uid, current_fsuid()) || + !gid_eq(result->i_gid, current_fsgid()) || result->i_mode != (mode | S_IFREG)) { result->i_uid = current_fsuid(); result->i_gid = current_fsgid(); diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c index 706a12c083ea..a152783602d9 100644 --- a/fs/hpfs/super.c +++ b/fs/hpfs/super.c @@ -251,7 +251,7 @@ static const match_table_t tokens = { {Opt_err, NULL}, }; -static int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask, +static int parse_opts(char *opts, kuid_t *uid, kgid_t *gid, umode_t *umask, int *lowercase, int *eas, int *chk, int *errs, int *chkdsk, int *timeshift) { @@ -276,12 +276,16 @@ static int parse_opts(char *opts, uid_t *uid, gid_t *gid, umode_t *umask, case Opt_uid: if (match_int(args, &option)) return 0; - *uid = option; + *uid = make_kuid(current_user_ns(), option); + if (!uid_valid(*uid)) + return 0; break; case Opt_gid: if (match_int(args, &option)) return 0; - *gid = option; + *gid = make_kgid(current_user_ns(), option); + if (!gid_valid(*gid)) + return 0; break; case Opt_umask: if (match_octal(args, &option)) @@ -378,8 +382,8 @@ HPFS filesystem options:\n\ static int hpfs_remount_fs(struct super_block *s, int *flags, char *data) { - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; umode_t umask; int lowercase, eas, chk, errs, chkdsk, timeshift; int o; @@ -455,8 +459,8 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent) struct hpfs_sb_info *sbi; struct inode *root; - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; umode_t umask; int lowercase, eas, chk, errs, chkdsk, timeshift; diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 8349a899912e..6e572c4fbf68 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -42,8 +42,8 @@ static const struct inode_operations hugetlbfs_dir_inode_operations; static const struct inode_operations hugetlbfs_inode_operations; struct hugetlbfs_config { - uid_t uid; - gid_t gid; + kuid_t uid; + kgid_t gid; umode_t mode; long nr_blocks; long nr_inodes; @@ -785,13 +785,17 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig) case Opt_uid: if (match_int(&args[0], &option)) goto bad_val; - pconfig->uid = option; + pconfig->uid = make_kuid(current_user_ns(), option); + if (!uid_valid(pconfig->uid)) + goto bad_val; break; case Opt_gid: if (match_int(&args[0], &option)) goto bad_val; - pconfig->gid = option; + pconfig->gid = make_kgid(current_user_ns(), option); + if (!gid_valid(pconfig->gid)) + goto bad_val; break; case Opt_mode: @@ -924,7 +928,9 @@ static struct vfsmount *hugetlbfs_vfsmount; static int can_do_hugetlb_shm(void) { - return capable(CAP_IPC_LOCK) || in_group_p(sysctl_hugetlb_shm_group); + kgid_t shm_group; + shm_group = make_kgid(&init_user_ns, sysctl_hugetlb_shm_group); + return capable(CAP_IPC_LOCK) || in_group_p(shm_group); } struct file *hugetlb_file_setup(const char *name, unsigned long addr, diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 29037c365ba4..a7d8e6cc5e0c 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -21,6 +21,7 @@ #include <linux/cdrom.h> #include <linux/parser.h> #include <linux/mpage.h> +#include <linux/user_namespace.h> #include "isofs.h" #include "zisofs.h" @@ -171,8 +172,8 @@ struct iso9660_options{ unsigned int blocksize; umode_t fmode; umode_t dmode; - gid_t gid; - uid_t uid; + kgid_t gid; + kuid_t uid; char *iocharset; /* LVE */ s32 session; @@ -383,8 +384,8 @@ static int parse_options(char *options, struct iso9660_options *popt) popt->fmode = popt->dmode = ISOFS_INVALID_MODE; popt->uid_set = 0; popt->gid_set = 0; - popt->gid = 0; - popt->uid = 0; + popt->gid = GLOBAL_ROOT_GID; + popt->uid = GLOBAL_ROOT_UID; popt->iocharset = NULL; popt->utf8 = 0; popt->overriderockperm = 0; @@ -460,13 +461,17 @@ static int parse_options(char *options, struct iso9660_options *popt) case Opt_uid: if (match_int(&args[0], &option)) return 0; - popt->uid = option; + popt->uid = make_kuid(current_user_ns(), option); + if (!uid_valid(popt->uid)) + return 0; popt->uid_set = 1; break; case Opt_gid: if (match_int(&args[0], &option)) return 0; - popt->gid = option; + popt->gid = make_kgid(current_user_ns(), option); + if (!gid_valid(popt->gid)) + return 0; popt->gid_set = 1; break; case Opt_mode: diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h index 3620ad1ea9bc..99167238518d 100644 --- a/fs/isofs/isofs.h +++ b/fs/isofs/isofs.h @@ -52,8 +52,8 @@ struct isofs_sb_info { umode_t s_fmode; umode_t s_dmode; - gid_t s_gid; - uid_t s_uid; + kgid_t s_gid; + kuid_t s_uid; struct nls_table *s_nls_iocharset; /* Native language support table */ }; diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c index 70e79d0c756a..c0bf42472e40 100644 --- a/fs/isofs/rock.c +++ b/fs/isofs/rock.c @@ -364,8 +364,8 @@ repeat: case SIG('P', 'X'): inode->i_mode = isonum_733(rr->u.PX.mode); set_nlink(inode, isonum_733(rr->u.PX.n_links)); - inode->i_uid = isonum_733(rr->u.PX.uid); - inode->i_gid = isonum_733(rr->u.PX.gid); + i_uid_write(inode, isonum_733(rr->u.PX.uid)); + i_gid_write(inode, isonum_733(rr->u.PX.gid)); break; case SIG('P', 'N'): { diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index 922f146e4235..223283c30111 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c @@ -94,15 +94,23 @@ static struct posix_acl *jffs2_acl_from_medium(void *value, size_t size) case ACL_MASK: case ACL_OTHER: value += sizeof(struct jffs2_acl_entry_short); - acl->a_entries[i].e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + value += sizeof(struct jffs2_acl_entry); + if (value > end) + goto fail; + acl->a_entries[i].e_uid = + make_kuid(&init_user_ns, + je32_to_cpu(entry->e_id)); + break; case ACL_GROUP: value += sizeof(struct jffs2_acl_entry); if (value > end) goto fail; - acl->a_entries[i].e_id = je32_to_cpu(entry->e_id); + acl->a_entries[i].e_gid = + make_kgid(&init_user_ns, + je32_to_cpu(entry->e_id)); break; default: @@ -131,13 +139,19 @@ static void *jffs2_acl_to_medium(const struct posix_acl *acl, size_t *size) header->a_version = cpu_to_je32(JFFS2_ACL_VERSION); e = header + 1; for (i=0; i < acl->a_count; i++) { + const struct posix_acl_entry *acl_e = &acl->a_entries[i]; entry = e; - entry->e_tag = cpu_to_je16(acl->a_entries[i].e_tag); - entry->e_perm = cpu_to_je16(acl->a_entries[i].e_perm); - switch(acl->a_entries[i].e_tag) { + entry->e_tag = cpu_to_je16(acl_e->e_tag); + entry->e_perm = cpu_to_je16(acl_e->e_perm); + switch(acl_e->e_tag) { case ACL_USER: + entry->e_id = cpu_to_je32( + from_kuid(&init_user_ns, acl_e->e_uid)); + e += sizeof(struct jffs2_acl_entry); + break; case ACL_GROUP: - entry->e_id = cpu_to_je32(acl->a_entries[i].e_id); + entry->e_id = cpu_to_je32( + from_kgid(&init_user_ns, acl_e->e_gid)); e += sizeof(struct jffs2_acl_entry); break; @@ -363,7 +377,7 @@ static int jffs2_acl_getxattr(struct dentry *dentry, const char *name, return PTR_ERR(acl); if (!acl) return -ENODATA; - rc = posix_acl_to_xattr(acl, buffer, size); + rc = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return rc; @@ -381,7 +395,7 @@ static int jffs2_acl_setxattr(struct dentry *dentry, const char *name, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); if (acl) { diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c index db3889ba8818..60ef3fb707ff 100644 --- a/fs/jffs2/file.c +++ b/fs/jffs2/file.c @@ -175,8 +175,8 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping, ri.ino = cpu_to_je32(f->inocache->ino); ri.version = cpu_to_je32(++f->highest_version); ri.mode = cpu_to_jemode(inode->i_mode); - ri.uid = cpu_to_je16(inode->i_uid); - ri.gid = cpu_to_je16(inode->i_gid); + ri.uid = cpu_to_je16(i_uid_read(inode)); + ri.gid = cpu_to_je16(i_gid_read(inode)); ri.isize = cpu_to_je32(max((uint32_t)inode->i_size, pageofs)); ri.atime = ri.ctime = ri.mtime = cpu_to_je32(get_seconds()); ri.offset = cpu_to_je32(inode->i_size); @@ -283,8 +283,8 @@ static int jffs2_write_end(struct file *filp, struct address_space *mapping, /* Set the fields that the generic jffs2_write_inode_range() code can't find */ ri->ino = cpu_to_je32(inode->i_ino); ri->mode = cpu_to_jemode(inode->i_mode); - ri->uid = cpu_to_je16(inode->i_uid); - ri->gid = cpu_to_je16(inode->i_gid); + ri->uid = cpu_to_je16(i_uid_read(inode)); + ri->gid = cpu_to_je16(i_gid_read(inode)); ri->isize = cpu_to_je32((uint32_t)inode->i_size); ri->atime = ri->ctime = ri->mtime = cpu_to_je32(get_seconds()); diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c index 3d3092eda811..fe3c0527545f 100644 --- a/fs/jffs2/fs.c +++ b/fs/jffs2/fs.c @@ -99,8 +99,10 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr) ri->ino = cpu_to_je32(inode->i_ino); ri->version = cpu_to_je32(++f->highest_version); - ri->uid = cpu_to_je16((ivalid & ATTR_UID)?iattr->ia_uid:inode->i_uid); - ri->gid = cpu_to_je16((ivalid & ATTR_GID)?iattr->ia_gid:inode->i_gid); + ri->uid = cpu_to_je16((ivalid & ATTR_UID)? + from_kuid(&init_user_ns, iattr->ia_uid):i_uid_read(inode)); + ri->gid = cpu_to_je16((ivalid & ATTR_GID)? + from_kgid(&init_user_ns, iattr->ia_gid):i_gid_read(inode)); if (ivalid & ATTR_MODE) ri->mode = cpu_to_jemode(iattr->ia_mode); @@ -147,8 +149,8 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr) inode->i_ctime = ITIME(je32_to_cpu(ri->ctime)); inode->i_mtime = ITIME(je32_to_cpu(ri->mtime)); inode->i_mode = jemode_to_cpu(ri->mode); - inode->i_uid = je16_to_cpu(ri->uid); - inode->i_gid = je16_to_cpu(ri->gid); + i_uid_write(inode, je16_to_cpu(ri->uid)); + i_gid_write(inode, je16_to_cpu(ri->gid)); old_metadata = f->metadata; @@ -276,8 +278,8 @@ struct inode *jffs2_iget(struct super_block *sb, unsigned long ino) return ERR_PTR(ret); } inode->i_mode = jemode_to_cpu(latest_node.mode); - inode->i_uid = je16_to_cpu(latest_node.uid); - inode->i_gid = je16_to_cpu(latest_node.gid); + i_uid_write(inode, je16_to_cpu(latest_node.uid)); + i_gid_write(inode, je16_to_cpu(latest_node.gid)); inode->i_size = je32_to_cpu(latest_node.isize); inode->i_atime = ITIME(je32_to_cpu(latest_node.atime)); inode->i_mtime = ITIME(je32_to_cpu(latest_node.mtime)); @@ -440,14 +442,14 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r memset(ri, 0, sizeof(*ri)); /* Set OS-specific defaults for new inodes */ - ri->uid = cpu_to_je16(current_fsuid()); + ri->uid = cpu_to_je16(from_kuid(&init_user_ns, current_fsuid())); if (dir_i->i_mode & S_ISGID) { - ri->gid = cpu_to_je16(dir_i->i_gid); + ri->gid = cpu_to_je16(i_gid_read(dir_i)); if (S_ISDIR(mode)) mode |= S_ISGID; } else { - ri->gid = cpu_to_je16(current_fsgid()); + ri->gid = cpu_to_je16(from_kgid(&init_user_ns, current_fsgid())); } /* POSIX ACLs have to be processed now, at least partly. @@ -467,8 +469,8 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r set_nlink(inode, 1); inode->i_ino = je32_to_cpu(ri->ino); inode->i_mode = jemode_to_cpu(ri->mode); - inode->i_gid = je16_to_cpu(ri->gid); - inode->i_uid = je16_to_cpu(ri->uid); + i_gid_write(inode, je16_to_cpu(ri->gid)); + i_uid_write(inode, je16_to_cpu(ri->uid)); inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME_SEC; ri->atime = ri->mtime = ri->ctime = cpu_to_je32(I_SEC(inode->i_mtime)); diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h index bcd983d7e7f9..d200a9b8fd5e 100644 --- a/fs/jffs2/os-linux.h +++ b/fs/jffs2/os-linux.h @@ -27,8 +27,8 @@ struct kvec; #define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size) #define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode) -#define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid) -#define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid) +#define JFFS2_F_I_UID(f) (i_uid_read(OFNI_EDONI_2SFFJ(f))) +#define JFFS2_F_I_GID(f) (i_gid_read(OFNI_EDONI_2SFFJ(f))) #define JFFS2_F_I_RDEV(f) (OFNI_EDONI_2SFFJ(f)->i_rdev) #define ITIME(sec) ((struct timespec){sec, 0}) diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c index 45559dc3ea2f..d254d6d35995 100644 --- a/fs/jfs/acl.c +++ b/fs/jfs/acl.c @@ -64,7 +64,7 @@ struct posix_acl *jfs_get_acl(struct inode *inode, int type) else acl = ERR_PTR(size); } else { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); } kfree(value); if (!IS_ERR(acl)) @@ -100,7 +100,7 @@ static int jfs_set_acl(tid_t tid, struct inode *inode, int type, value = kmalloc(size, GFP_KERNEL); if (!value) return -ENOMEM; - rc = posix_acl_to_xattr(acl, value, size); + rc = posix_acl_to_xattr(&init_user_ns, acl, value, size); if (rc < 0) goto out; } diff --git a/fs/jfs/file.c b/fs/jfs/file.c index 844f9460cb11..9d3afd157f99 100644 --- a/fs/jfs/file.c +++ b/fs/jfs/file.c @@ -108,8 +108,8 @@ int jfs_setattr(struct dentry *dentry, struct iattr *iattr) if (is_quota_modification(inode, iattr)) dquot_initialize(inode); - if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) || - (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) { + if ((iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) || + (iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid))) { rc = dquot_transfer(inode, iattr); if (rc) return rc; diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c index 1b6f15f191b3..6ba4006e011b 100644 --- a/fs/jfs/jfs_imap.c +++ b/fs/jfs/jfs_imap.c @@ -3078,15 +3078,15 @@ static int copy_from_dinode(struct dinode * dip, struct inode *ip) } set_nlink(ip, le32_to_cpu(dip->di_nlink)); - jfs_ip->saved_uid = le32_to_cpu(dip->di_uid); - if (sbi->uid == -1) + jfs_ip->saved_uid = make_kuid(&init_user_ns, le32_to_cpu(dip->di_uid)); + if (!uid_valid(sbi->uid)) ip->i_uid = jfs_ip->saved_uid; else { ip->i_uid = sbi->uid; } - jfs_ip->saved_gid = le32_to_cpu(dip->di_gid); - if (sbi->gid == -1) + jfs_ip->saved_gid = make_kgid(&init_user_ns, le32_to_cpu(dip->di_gid)); + if (!gid_valid(sbi->gid)) ip->i_gid = jfs_ip->saved_gid; else { ip->i_gid = sbi->gid; @@ -3150,14 +3150,16 @@ static void copy_to_dinode(struct dinode * dip, struct inode *ip) dip->di_size = cpu_to_le64(ip->i_size); dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks)); dip->di_nlink = cpu_to_le32(ip->i_nlink); - if (sbi->uid == -1) - dip->di_uid = cpu_to_le32(ip->i_uid); + if (!uid_valid(sbi->uid)) + dip->di_uid = cpu_to_le32(i_uid_read(ip)); else - dip->di_uid = cpu_to_le32(jfs_ip->saved_uid); - if (sbi->gid == -1) - dip->di_gid = cpu_to_le32(ip->i_gid); + dip->di_uid =cpu_to_le32(from_kuid(&init_user_ns, + jfs_ip->saved_uid)); + if (!gid_valid(sbi->gid)) + dip->di_gid = cpu_to_le32(i_gid_read(ip)); else - dip->di_gid = cpu_to_le32(jfs_ip->saved_gid); + dip->di_gid = cpu_to_le32(from_kgid(&init_user_ns, + jfs_ip->saved_gid)); jfs_get_inode_flags(jfs_ip); /* * mode2 is only needed for storing the higher order bits. diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h index 584a4a1a6e81..680605d7bf15 100644 --- a/fs/jfs/jfs_incore.h +++ b/fs/jfs/jfs_incore.h @@ -38,8 +38,8 @@ struct jfs_inode_info { int fileset; /* fileset number (always 16)*/ uint mode2; /* jfs-specific mode */ - uint saved_uid; /* saved for uid mount option */ - uint saved_gid; /* saved for gid mount option */ + kuid_t saved_uid; /* saved for uid mount option */ + kgid_t saved_gid; /* saved for gid mount option */ pxd_t ixpxd; /* inode extent descriptor */ dxd_t acl; /* dxd describing acl */ dxd_t ea; /* dxd describing ea */ @@ -192,8 +192,8 @@ struct jfs_sb_info { uint state; /* mount/recovery state */ unsigned long flag; /* mount time flags */ uint p_state; /* state prior to going no integrity */ - uint uid; /* uid to override on-disk uid */ - uint gid; /* gid to override on-disk gid */ + kuid_t uid; /* uid to override on-disk uid */ + kgid_t gid; /* gid to override on-disk gid */ uint umask; /* umask to override on-disk umask */ }; diff --git a/fs/jfs/super.c b/fs/jfs/super.c index c55c7452d285..706692f24033 100644 --- a/fs/jfs/super.c +++ b/fs/jfs/super.c @@ -321,13 +321,19 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize, case Opt_uid: { char *uid = args[0].from; - sbi->uid = simple_strtoul(uid, &uid, 0); + uid_t val = simple_strtoul(uid, &uid, 0); + sbi->uid = make_kuid(current_user_ns(), val); + if (!uid_valid(sbi->uid)) + goto cleanup; break; } case Opt_gid: { char *gid = args[0].from; - sbi->gid = simple_strtoul(gid, &gid, 0); + gid_t val = simple_strtoul(gid, &gid, 0); + sbi->gid = make_kgid(current_user_ns(), val); + if (!gid_valid(sbi->gid)) + goto cleanup; break; } case Opt_umask: @@ -443,7 +449,9 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_fs_info = sbi; sb->s_max_links = JFS_LINK_MAX; sbi->sb = sb; - sbi->uid = sbi->gid = sbi->umask = -1; + sbi->uid = INVALID_UID; + sbi->gid = INVALID_GID; + sbi->umask = -1; /* initialize the mount flag and determine the default error handler */ flag = JFS_ERR_REMOUNT_RO; @@ -617,10 +625,10 @@ static int jfs_show_options(struct seq_file *seq, struct dentry *root) { struct jfs_sb_info *sbi = JFS_SBI(root->d_sb); - if (sbi->uid != -1) - seq_printf(seq, ",uid=%d", sbi->uid); - if (sbi->gid != -1) - seq_printf(seq, ",gid=%d", sbi->gid); + if (uid_valid(sbi->uid)) + seq_printf(seq, ",uid=%d", from_kuid(&init_user_ns, sbi->uid)); + if (gid_valid(sbi->gid)) + seq_printf(seq, ",gid=%d", from_kgid(&init_user_ns, sbi->gid)); if (sbi->umask != -1) seq_printf(seq, ",umask=%03o", sbi->umask); if (sbi->flag & JFS_NOINTEGRITY) diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c index 26683e15b3ac..42d67f9757bf 100644 --- a/fs/jfs/xattr.c +++ b/fs/jfs/xattr.c @@ -685,7 +685,7 @@ static int can_set_system_xattr(struct inode *inode, const char *name, * POSIX_ACL_XATTR_ACCESS is tied to i_mode */ if (strcmp(name, POSIX_ACL_XATTR_ACCESS) == 0) { - acl = posix_acl_from_xattr(value, value_len); + acl = posix_acl_from_xattr(&init_user_ns, value, value_len); if (IS_ERR(acl)) { rc = PTR_ERR(acl); printk(KERN_ERR "posix_acl_from_xattr returned %d\n", @@ -710,7 +710,7 @@ static int can_set_system_xattr(struct inode *inode, const char *name, return 0; } else if (strcmp(name, POSIX_ACL_XATTR_DEFAULT) == 0) { - acl = posix_acl_from_xattr(value, value_len); + acl = posix_acl_from_xattr(&init_user_ns, value, value_len); if (IS_ERR(acl)) { rc = PTR_ERR(acl); printk(KERN_ERR "posix_acl_from_xattr returned %d\n", diff --git a/fs/logfs/inode.c b/fs/logfs/inode.c index 6984562738d3..bda39085309f 100644 --- a/fs/logfs/inode.c +++ b/fs/logfs/inode.c @@ -208,8 +208,8 @@ static void logfs_init_inode(struct super_block *sb, struct inode *inode) li->li_height = 0; li->li_used_bytes = 0; li->li_block = NULL; - inode->i_uid = 0; - inode->i_gid = 0; + i_uid_write(inode, 0); + i_gid_write(inode, 0); inode->i_size = 0; inode->i_blocks = 0; inode->i_ctime = CURRENT_TIME; diff --git a/fs/logfs/readwrite.c b/fs/logfs/readwrite.c index 5be0abef603d..e1a3b6bf6324 100644 --- a/fs/logfs/readwrite.c +++ b/fs/logfs/readwrite.c @@ -119,8 +119,8 @@ static void logfs_disk_to_inode(struct logfs_disk_inode *di, struct inode*inode) inode->i_mode = be16_to_cpu(di->di_mode); li->li_height = di->di_height; li->li_flags = be32_to_cpu(di->di_flags); - inode->i_uid = be32_to_cpu(di->di_uid); - inode->i_gid = be32_to_cpu(di->di_gid); + i_uid_write(inode, be32_to_cpu(di->di_uid)); + i_gid_write(inode, be32_to_cpu(di->di_gid)); inode->i_size = be64_to_cpu(di->di_size); logfs_set_blocks(inode, be64_to_cpu(di->di_used_bytes)); inode->i_atime = be64_to_timespec(di->di_atime); @@ -156,8 +156,8 @@ static void logfs_inode_to_disk(struct inode *inode, struct logfs_disk_inode*di) di->di_height = li->li_height; di->di_pad = 0; di->di_flags = cpu_to_be32(li->li_flags); - di->di_uid = cpu_to_be32(inode->i_uid); - di->di_gid = cpu_to_be32(inode->i_gid); + di->di_uid = cpu_to_be32(i_uid_read(inode)); + di->di_gid = cpu_to_be32(i_gid_read(inode)); di->di_size = cpu_to_be64(i_size_read(inode)); di->di_used_bytes = cpu_to_be64(li->li_used_bytes); di->di_atime = timespec_to_be64(inode->i_atime); diff --git a/fs/minix/inode.c b/fs/minix/inode.c index 2a503ad020d5..d0e42c678923 100644 --- a/fs/minix/inode.c +++ b/fs/minix/inode.c @@ -460,8 +460,8 @@ static struct inode *V1_minix_iget(struct inode *inode) return ERR_PTR(-EIO); } inode->i_mode = raw_inode->i_mode; - inode->i_uid = (uid_t)raw_inode->i_uid; - inode->i_gid = (gid_t)raw_inode->i_gid; + i_uid_write(inode, raw_inode->i_uid); + i_gid_write(inode, raw_inode->i_gid); set_nlink(inode, raw_inode->i_nlinks); inode->i_size = raw_inode->i_size; inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = raw_inode->i_time; @@ -493,8 +493,8 @@ static struct inode *V2_minix_iget(struct inode *inode) return ERR_PTR(-EIO); } inode->i_mode = raw_inode->i_mode; - inode->i_uid = (uid_t)raw_inode->i_uid; - inode->i_gid = (gid_t)raw_inode->i_gid; + i_uid_write(inode, raw_inode->i_uid); + i_gid_write(inode, raw_inode->i_gid); set_nlink(inode, raw_inode->i_nlinks); inode->i_size = raw_inode->i_size; inode->i_mtime.tv_sec = raw_inode->i_mtime; @@ -545,8 +545,8 @@ static struct buffer_head * V1_minix_update_inode(struct inode * inode) if (!raw_inode) return NULL; raw_inode->i_mode = inode->i_mode; - raw_inode->i_uid = fs_high2lowuid(inode->i_uid); - raw_inode->i_gid = fs_high2lowgid(inode->i_gid); + raw_inode->i_uid = fs_high2lowuid(i_uid_read(inode)); + raw_inode->i_gid = fs_high2lowgid(i_gid_read(inode)); raw_inode->i_nlinks = inode->i_nlink; raw_inode->i_size = inode->i_size; raw_inode->i_time = inode->i_mtime.tv_sec; @@ -572,8 +572,8 @@ static struct buffer_head * V2_minix_update_inode(struct inode * inode) if (!raw_inode) return NULL; raw_inode->i_mode = inode->i_mode; - raw_inode->i_uid = fs_high2lowuid(inode->i_uid); - raw_inode->i_gid = fs_high2lowgid(inode->i_gid); + raw_inode->i_uid = fs_high2lowuid(i_uid_read(inode)); + raw_inode->i_gid = fs_high2lowgid(i_gid_read(inode)); raw_inode->i_nlinks = inode->i_nlink; raw_inode->i_size = inode->i_size; raw_inode->i_mtime = inode->i_mtime.tv_sec; diff --git a/fs/namei.c b/fs/namei.c index dd1ed1b8e98e..a856e7f7b6e3 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -680,7 +680,7 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd) /* Allowed if owner and follower match. */ inode = link->dentry->d_inode; - if (current_cred()->fsuid == inode->i_uid) + if (uid_eq(current_cred()->fsuid, inode->i_uid)) return 0; /* Allowed if parent directory not sticky and world-writable. */ @@ -689,7 +689,7 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd) return 0; /* Allowed if parent directory and link owner match. */ - if (parent->i_uid == inode->i_uid) + if (uid_eq(parent->i_uid, inode->i_uid)) return 0; path_put_conditional(link, nd); @@ -759,7 +759,7 @@ static int may_linkat(struct path *link) /* Source inode owner (or CAP_FOWNER) can hardlink all they like, * otherwise, it must be a safe source. */ - if (cred->fsuid == inode->i_uid || safe_hardlink_source(inode) || + if (uid_eq(cred->fsuid, inode->i_uid) || safe_hardlink_source(inode) || capable(CAP_FOWNER)) return 0; diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c index e4498dc351a8..4a1aafba6a20 100644 --- a/fs/nfs/nfs3acl.c +++ b/fs/nfs/nfs3acl.c @@ -70,7 +70,7 @@ ssize_t nfs3_getxattr(struct dentry *dentry, const char *name, if (type == ACL_TYPE_ACCESS && acl->a_count == 0) error = -ENODATA; else - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); } else error = -ENODATA; @@ -92,7 +92,7 @@ int nfs3_setxattr(struct dentry *dentry, const char *name, else return -EOPNOTSUPP; - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); error = nfs3_proc_setacl(inode, type, acl); diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index a9269f142cc4..3f67b8e12251 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -480,7 +480,7 @@ set_nfsv4_acl_one(struct dentry *dentry, struct posix_acl *pacl, char *key) if (buf == NULL) goto out; - len = posix_acl_to_xattr(pacl, buf, buflen); + len = posix_acl_to_xattr(&init_user_ns, pacl, buf, buflen); if (len < 0) { error = len; goto out; @@ -549,7 +549,7 @@ _get_posix_acl(struct dentry *dentry, char *key) if (buflen <= 0) return ERR_PTR(buflen); - pacl = posix_acl_from_xattr(buf, buflen); + pacl = posix_acl_from_xattr(&init_user_ns, buf, buflen); kfree(buf); return pacl; } @@ -2264,7 +2264,7 @@ nfsd_get_posix_acl(struct svc_fh *fhp, int type) if (size < 0) return ERR_PTR(size); - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); kfree(value); return acl; } @@ -2297,7 +2297,7 @@ nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl) value = kmalloc(size, GFP_KERNEL); if (!value) return -ENOMEM; - error = posix_acl_to_xattr(acl, value, size); + error = posix_acl_to_xattr(&init_user_ns, acl, value, size); if (error < 0) goto getout; size = error; diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 6e2c3db976b2..4d31d2cca7fd 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -401,8 +401,8 @@ int nilfs_read_inode_common(struct inode *inode, int err; inode->i_mode = le16_to_cpu(raw_inode->i_mode); - inode->i_uid = (uid_t)le32_to_cpu(raw_inode->i_uid); - inode->i_gid = (gid_t)le32_to_cpu(raw_inode->i_gid); + i_uid_write(inode, le32_to_cpu(raw_inode->i_uid)); + i_gid_write(inode, le32_to_cpu(raw_inode->i_gid)); set_nlink(inode, le16_to_cpu(raw_inode->i_links_count)); inode->i_size = le64_to_cpu(raw_inode->i_size); inode->i_atime.tv_sec = le64_to_cpu(raw_inode->i_mtime); @@ -590,8 +590,8 @@ void nilfs_write_inode_common(struct inode *inode, struct nilfs_inode_info *ii = NILFS_I(inode); raw_inode->i_mode = cpu_to_le16(inode->i_mode); - raw_inode->i_uid = cpu_to_le32(inode->i_uid); - raw_inode->i_gid = cpu_to_le32(inode->i_gid); + raw_inode->i_uid = cpu_to_le32(i_uid_read(inode)); + raw_inode->i_gid = cpu_to_le32(i_gid_read(inode)); raw_inode->i_links_count = cpu_to_le16(inode->i_nlink); raw_inode->i_size = cpu_to_le64(inode->i_size); raw_inode->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec); diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c index c6dbd3db6ca8..1d27331e6fc9 100644 --- a/fs/ntfs/inode.c +++ b/fs/ntfs/inode.c @@ -2124,7 +2124,8 @@ int ntfs_read_inode_mount(struct inode *vi) * ntfs_read_inode() will have set up the default ones. */ /* Set uid and gid to root. */ - vi->i_uid = vi->i_gid = 0; + vi->i_uid = GLOBAL_ROOT_UID; + vi->i_gid = GLOBAL_ROOT_GID; /* Regular file. No access for anyone. */ vi->i_mode = S_IFREG; /* No VFS initiated operations allowed for $MFT. */ @@ -2312,8 +2313,8 @@ int ntfs_show_options(struct seq_file *sf, struct dentry *root) ntfs_volume *vol = NTFS_SB(root->d_sb); int i; - seq_printf(sf, ",uid=%i", vol->uid); - seq_printf(sf, ",gid=%i", vol->gid); + seq_printf(sf, ",uid=%i", from_kuid_munged(&init_user_ns, vol->uid)); + seq_printf(sf, ",gid=%i", from_kgid_munged(&init_user_ns, vol->gid)); if (vol->fmask == vol->dmask) seq_printf(sf, ",umask=0%o", vol->fmask); else { diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c index 2bc149d6a784..da01c165067d 100644 --- a/fs/ntfs/super.c +++ b/fs/ntfs/super.c @@ -102,8 +102,8 @@ static bool parse_options(ntfs_volume *vol, char *opt) char *p, *v, *ov; static char *utf8 = "utf8"; int errors = 0, sloppy = 0; - uid_t uid = (uid_t)-1; - gid_t gid = (gid_t)-1; + kuid_t uid = INVALID_UID; + kgid_t gid = INVALID_GID; umode_t fmask = (umode_t)-1, dmask = (umode_t)-1; int mft_zone_multiplier = -1, on_errors = -1; int show_sys_files = -1, case_sensitive = -1, disable_sparse = -1; @@ -128,6 +128,30 @@ static bool parse_options(ntfs_volume *vol, char *opt) if (*v) \ goto needs_val; \ } +#define NTFS_GETOPT_UID(option, variable) \ + if (!strcmp(p, option)) { \ + uid_t uid_value; \ + if (!v || !*v) \ + goto needs_arg; \ + uid_value = simple_strtoul(ov = v, &v, 0); \ + if (*v) \ + goto needs_val; \ + variable = make_kuid(current_user_ns(), uid_value); \ + if (!uid_valid(variable)) \ + goto needs_val; \ + } +#define NTFS_GETOPT_GID(option, variable) \ + if (!strcmp(p, option)) { \ + gid_t gid_value; \ + if (!v || !*v) \ + goto needs_arg; \ + gid_value = simple_strtoul(ov = v, &v, 0); \ + if (*v) \ + goto needs_val; \ + variable = make_kgid(current_user_ns(), gid_value); \ + if (!gid_valid(variable)) \ + goto needs_val; \ + } #define NTFS_GETOPT_OCTAL(option, variable) \ if (!strcmp(p, option)) { \ if (!v || !*v) \ @@ -165,8 +189,8 @@ static bool parse_options(ntfs_volume *vol, char *opt) while ((p = strsep(&opt, ","))) { if ((v = strchr(p, '='))) *v++ = 0; - NTFS_GETOPT("uid", uid) - else NTFS_GETOPT("gid", gid) + NTFS_GETOPT_UID("uid", uid) + else NTFS_GETOPT_GID("gid", gid) else NTFS_GETOPT_OCTAL("umask", fmask = dmask) else NTFS_GETOPT_OCTAL("fmask", fmask) else NTFS_GETOPT_OCTAL("dmask", dmask) @@ -283,9 +307,9 @@ no_mount_options: vol->on_errors = on_errors; if (!vol->on_errors || vol->on_errors == ON_ERRORS_RECOVER) vol->on_errors |= ON_ERRORS_CONTINUE; - if (uid != (uid_t)-1) + if (uid_valid(uid)) vol->uid = uid; - if (gid != (gid_t)-1) + if (gid_valid(gid)) vol->gid = gid; if (fmask != (umode_t)-1) vol->fmask = fmask; @@ -1023,7 +1047,8 @@ static bool load_and_init_mft_mirror(ntfs_volume *vol) * ntfs_read_inode() will have set up the default ones. */ /* Set uid and gid to root. */ - tmp_ino->i_uid = tmp_ino->i_gid = 0; + tmp_ino->i_uid = GLOBAL_ROOT_UID; + tmp_ino->i_gid = GLOBAL_ROOT_GID; /* Regular file. No access for anyone. */ tmp_ino->i_mode = S_IFREG; /* No VFS initiated operations allowed for $MFTMirr. */ diff --git a/fs/ntfs/volume.h b/fs/ntfs/volume.h index 15e3ba8d521a..4f579b02bc76 100644 --- a/fs/ntfs/volume.h +++ b/fs/ntfs/volume.h @@ -25,6 +25,7 @@ #define _LINUX_NTFS_VOLUME_H #include <linux/rwsem.h> +#include <linux/uidgid.h> #include "types.h" #include "layout.h" @@ -46,8 +47,8 @@ typedef struct { sized blocks on the device. */ /* Configuration provided by user at mount time. */ unsigned long flags; /* Miscellaneous flags, see below. */ - uid_t uid; /* uid that files will be mounted as. */ - gid_t gid; /* gid that files will be mounted as. */ + kuid_t uid; /* uid that files will be mounted as. */ + kgid_t gid; /* gid that files will be mounted as. */ umode_t fmask; /* The mask for file permissions. */ umode_t dmask; /* The mask for directory permissions. */ diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c index a7219075b4de..260b16281fc3 100644 --- a/fs/ocfs2/acl.c +++ b/fs/ocfs2/acl.c @@ -452,7 +452,7 @@ static int ocfs2_xattr_get_acl(struct dentry *dentry, const char *name, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - ret = posix_acl_to_xattr(acl, buffer, size); + ret = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return ret; @@ -475,7 +475,7 @@ static int ocfs2_xattr_set_acl(struct dentry *dentry, const char *name, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) return PTR_ERR(acl); else if (acl) { diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 46a1f6d75104..5a4ee77cec51 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1184,8 +1184,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) if (attr->ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid && OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { - transfer_to[USRQUOTA] = dqget(sb, attr->ia_uid, - USRQUOTA); + transfer_to[USRQUOTA] = dqget(sb, make_kqid_uid(attr->ia_uid)); if (!transfer_to[USRQUOTA]) { status = -ESRCH; goto bail_unlock; @@ -1194,8 +1193,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) if (attr->ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid && OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { - transfer_to[GRPQUOTA] = dqget(sb, attr->ia_gid, - GRPQUOTA); + transfer_to[GRPQUOTA] = dqget(sb, make_kqid_gid(attr->ia_gid)); if (!transfer_to[GRPQUOTA]) { status = -ESRCH; goto bail_unlock; diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index 0a86e302655f..332a281f217e 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -95,7 +95,7 @@ static void ocfs2_global_mem2diskdqb(void *dp, struct dquot *dquot) struct ocfs2_global_disk_dqblk *d = dp; struct mem_dqblk *m = &dquot->dq_dqb; - d->dqb_id = cpu_to_le32(dquot->dq_id); + d->dqb_id = cpu_to_le32(from_kqid(&init_user_ns, dquot->dq_id)); d->dqb_use_count = cpu_to_le32(OCFS2_DQUOT(dquot)->dq_use_count); d->dqb_ihardlimit = cpu_to_le64(m->dqb_ihardlimit); d->dqb_isoftlimit = cpu_to_le64(m->dqb_isoftlimit); @@ -112,11 +112,14 @@ static int ocfs2_global_is_id(void *dp, struct dquot *dquot) { struct ocfs2_global_disk_dqblk *d = dp; struct ocfs2_mem_dqinfo *oinfo = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv; if (qtree_entry_unused(&oinfo->dqi_gi, dp)) return 0; - return le32_to_cpu(d->dqb_id) == dquot->dq_id; + + return qid_eq(make_kqid(&init_user_ns, dquot->dq_id.type, + le32_to_cpu(d->dqb_id)), + dquot->dq_id); } struct qtree_fmt_operations ocfs2_global_ops = { @@ -475,7 +478,7 @@ int __ocfs2_sync_dquot(struct dquot *dquot, int freeing) { int err, err2; struct super_block *sb = dquot->dq_sb; - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv; struct ocfs2_global_disk_dqblk dqblk; s64 spacechange, inodechange; @@ -504,7 +507,8 @@ int __ocfs2_sync_dquot(struct dquot *dquot, int freeing) olditime = dquot->dq_dqb.dqb_itime; oldbtime = dquot->dq_dqb.dqb_btime; ocfs2_global_disk2memdqb(dquot, &dqblk); - trace_ocfs2_sync_dquot(dquot->dq_id, dquot->dq_dqb.dqb_curspace, + trace_ocfs2_sync_dquot(from_kqid(&init_user_ns, dquot->dq_id), + dquot->dq_dqb.dqb_curspace, (long long)spacechange, dquot->dq_dqb.dqb_curinodes, (long long)inodechange); @@ -555,8 +559,8 @@ int __ocfs2_sync_dquot(struct dquot *dquot, int freeing) err = ocfs2_qinfo_lock(info, freeing); if (err < 0) { mlog(ML_ERROR, "Failed to lock quota info, losing quota write" - " (type=%d, id=%u)\n", dquot->dq_type, - (unsigned)dquot->dq_id); + " (type=%d, id=%u)\n", dquot->dq_id.type, + (unsigned)from_kqid(&init_user_ns, dquot->dq_id)); goto out; } if (freeing) @@ -591,9 +595,10 @@ static int ocfs2_sync_dquot_helper(struct dquot *dquot, unsigned long type) struct ocfs2_super *osb = OCFS2_SB(sb); int status = 0; - trace_ocfs2_sync_dquot_helper(dquot->dq_id, dquot->dq_type, + trace_ocfs2_sync_dquot_helper(from_kqid(&init_user_ns, dquot->dq_id), + dquot->dq_id.type, type, sb->s_id); - if (type != dquot->dq_type) + if (type != dquot->dq_id.type) goto out; status = ocfs2_lock_global_qf(oinfo, 1); if (status < 0) @@ -643,7 +648,8 @@ static int ocfs2_write_dquot(struct dquot *dquot) struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb); int status = 0; - trace_ocfs2_write_dquot(dquot->dq_id, dquot->dq_type); + trace_ocfs2_write_dquot(from_kqid(&init_user_ns, dquot->dq_id), + dquot->dq_id.type); handle = ocfs2_start_trans(osb, OCFS2_QWRITE_CREDITS); if (IS_ERR(handle)) { @@ -677,11 +683,12 @@ static int ocfs2_release_dquot(struct dquot *dquot) { handle_t *handle; struct ocfs2_mem_dqinfo *oinfo = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv; struct ocfs2_super *osb = OCFS2_SB(dquot->dq_sb); int status = 0; - trace_ocfs2_release_dquot(dquot->dq_id, dquot->dq_type); + trace_ocfs2_release_dquot(from_kqid(&init_user_ns, dquot->dq_id), + dquot->dq_id.type); mutex_lock(&dquot->dq_lock); /* Check whether we are not racing with some other dqget() */ @@ -691,7 +698,7 @@ static int ocfs2_release_dquot(struct dquot *dquot) if (status < 0) goto out; handle = ocfs2_start_trans(osb, - ocfs2_calc_qdel_credits(dquot->dq_sb, dquot->dq_type)); + ocfs2_calc_qdel_credits(dquot->dq_sb, dquot->dq_id.type)); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); @@ -733,13 +740,14 @@ static int ocfs2_acquire_dquot(struct dquot *dquot) int ex = 0; struct super_block *sb = dquot->dq_sb; struct ocfs2_super *osb = OCFS2_SB(sb); - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct ocfs2_mem_dqinfo *info = sb_dqinfo(sb, type)->dqi_priv; struct inode *gqinode = info->dqi_gqinode; int need_alloc = ocfs2_global_qinit_alloc(sb, type); handle_t *handle; - trace_ocfs2_acquire_dquot(dquot->dq_id, type); + trace_ocfs2_acquire_dquot(from_kqid(&init_user_ns, dquot->dq_id), + type); mutex_lock(&dquot->dq_lock); /* * We need an exclusive lock, because we're going to update use count @@ -821,12 +829,13 @@ static int ocfs2_mark_dquot_dirty(struct dquot *dquot) int sync = 0; int status; struct super_block *sb = dquot->dq_sb; - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct ocfs2_mem_dqinfo *oinfo = sb_dqinfo(sb, type)->dqi_priv; handle_t *handle; struct ocfs2_super *osb = OCFS2_SB(sb); - trace_ocfs2_mark_dquot_dirty(dquot->dq_id, type); + trace_ocfs2_mark_dquot_dirty(from_kqid(&init_user_ns, dquot->dq_id), + type); /* In case user set some limits, sync dquot immediately to global * quota file so that information propagates quicker */ diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index f100bf70a906..27fe7ee4874c 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -501,7 +501,9 @@ static int ocfs2_recover_local_quota_file(struct inode *lqinode, } dqblk = (struct ocfs2_local_disk_dqblk *)(qbh->b_data + ol_dqblk_block_off(sb, chunk, bit)); - dquot = dqget(sb, le64_to_cpu(dqblk->dqb_id), type); + dquot = dqget(sb, + make_kqid(&init_user_ns, type, + le64_to_cpu(dqblk->dqb_id))); if (!dquot) { status = -EIO; mlog(ML_ERROR, "Failed to get quota structure " @@ -881,7 +883,8 @@ static void olq_set_dquot(struct buffer_head *bh, void *private) dqblk = (struct ocfs2_local_disk_dqblk *)(bh->b_data + ol_dqblk_block_offset(sb, od->dq_local_off)); - dqblk->dqb_id = cpu_to_le64(od->dq_dquot.dq_id); + dqblk->dqb_id = cpu_to_le64(from_kqid(&init_user_ns, + od->dq_dquot.dq_id)); spin_lock(&dq_data_lock); dqblk->dqb_spacemod = cpu_to_le64(od->dq_dquot.dq_dqb.dqb_curspace - od->dq_origspace); @@ -891,7 +894,7 @@ static void olq_set_dquot(struct buffer_head *bh, void *private) trace_olq_set_dquot( (unsigned long long)le64_to_cpu(dqblk->dqb_spacemod), (unsigned long long)le64_to_cpu(dqblk->dqb_inodemod), - od->dq_dquot.dq_id); + from_kqid(&init_user_ns, od->dq_dquot.dq_id)); } /* Write dquot to local quota file */ @@ -900,7 +903,7 @@ int ocfs2_local_write_dquot(struct dquot *dquot) struct super_block *sb = dquot->dq_sb; struct ocfs2_dquot *od = OCFS2_DQUOT(dquot); struct buffer_head *bh; - struct inode *lqinode = sb_dqopt(sb)->files[dquot->dq_type]; + struct inode *lqinode = sb_dqopt(sb)->files[dquot->dq_id.type]; int status; status = ocfs2_read_quota_phys_block(lqinode, od->dq_local_phys_blk, @@ -1221,7 +1224,7 @@ static void olq_alloc_dquot(struct buffer_head *bh, void *private) int ocfs2_create_local_dquot(struct dquot *dquot) { struct super_block *sb = dquot->dq_sb; - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct inode *lqinode = sb_dqopt(sb)->files[type]; struct ocfs2_quota_chunk *chunk; struct ocfs2_dquot *od = OCFS2_DQUOT(dquot); @@ -1275,7 +1278,7 @@ out: int ocfs2_local_release_dquot(handle_t *handle, struct dquot *dquot) { int status; - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct ocfs2_dquot *od = OCFS2_DQUOT(dquot); struct super_block *sb = dquot->dq_sb; struct ocfs2_local_disk_chunk *dchunk; diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c index e6213b3725d1..25d715c7c87a 100644 --- a/fs/omfs/inode.c +++ b/fs/omfs/inode.c @@ -391,12 +391,16 @@ static int parse_options(char *options, struct omfs_sb_info *sbi) case Opt_uid: if (match_int(&args[0], &option)) return 0; - sbi->s_uid = option; + sbi->s_uid = make_kuid(current_user_ns(), option); + if (!uid_valid(sbi->s_uid)) + return 0; break; case Opt_gid: if (match_int(&args[0], &option)) return 0; - sbi->s_gid = option; + sbi->s_gid = make_kgid(current_user_ns(), option); + if (!gid_valid(sbi->s_gid)) + return 0; break; case Opt_umask: if (match_octal(&args[0], &option)) diff --git a/fs/omfs/omfs.h b/fs/omfs/omfs.h index 8941f12c6b01..f0f8bc75e609 100644 --- a/fs/omfs/omfs.h +++ b/fs/omfs/omfs.h @@ -19,8 +19,8 @@ struct omfs_sb_info { unsigned long **s_imap; int s_imap_size; struct mutex s_bitmap_lock; - int s_uid; - int s_gid; + kuid_t s_uid; + kgid_t s_gid; int s_dmask; int s_fmask; }; diff --git a/fs/open.c b/fs/open.c index e1f2cdb91a4d..b0bae3a41825 100644 --- a/fs/open.c +++ b/fs/open.c @@ -534,7 +534,7 @@ static int chown_common(struct path *path, uid_t user, gid_t group) newattrs.ia_valid |= ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV; mutex_lock(&inode->i_mutex); - error = security_path_chown(path, user, group); + error = security_path_chown(path, uid, gid); if (!error) error = notify_change(path->dentry, &newattrs); mutex_unlock(&inode->i_mutex); diff --git a/fs/posix_acl.c b/fs/posix_acl.c index 5e325a42e33d..8bd2135b7f82 100644 --- a/fs/posix_acl.c +++ b/fs/posix_acl.c @@ -78,7 +78,8 @@ posix_acl_valid(const struct posix_acl *acl) { const struct posix_acl_entry *pa, *pe; int state = ACL_USER_OBJ; - unsigned int id = 0; /* keep gcc happy */ + kuid_t prev_uid = INVALID_UID; + kgid_t prev_gid = INVALID_GID; int needs_mask = 0; FOREACH_ACL_ENTRY(pa, acl, pe) { @@ -87,7 +88,6 @@ posix_acl_valid(const struct posix_acl *acl) switch (pa->e_tag) { case ACL_USER_OBJ: if (state == ACL_USER_OBJ) { - id = 0; state = ACL_USER; break; } @@ -96,16 +96,17 @@ posix_acl_valid(const struct posix_acl *acl) case ACL_USER: if (state != ACL_USER) return -EINVAL; - if (pa->e_id == ACL_UNDEFINED_ID || - pa->e_id < id) + if (!uid_valid(pa->e_uid)) return -EINVAL; - id = pa->e_id + 1; + if (uid_valid(prev_uid) && + uid_lte(pa->e_uid, prev_uid)) + return -EINVAL; + prev_uid = pa->e_uid; needs_mask = 1; break; case ACL_GROUP_OBJ: if (state == ACL_USER) { - id = 0; state = ACL_GROUP; break; } @@ -114,10 +115,12 @@ posix_acl_valid(const struct posix_acl *acl) case ACL_GROUP: if (state != ACL_GROUP) return -EINVAL; - if (pa->e_id == ACL_UNDEFINED_ID || - pa->e_id < id) + if (!gid_valid(pa->e_gid)) + return -EINVAL; + if (gid_valid(prev_gid) && + gid_lte(pa->e_gid, prev_gid)) return -EINVAL; - id = pa->e_id + 1; + prev_gid = pa->e_gid; needs_mask = 1; break; @@ -195,15 +198,12 @@ posix_acl_from_mode(umode_t mode, gfp_t flags) return ERR_PTR(-ENOMEM); acl->a_entries[0].e_tag = ACL_USER_OBJ; - acl->a_entries[0].e_id = ACL_UNDEFINED_ID; acl->a_entries[0].e_perm = (mode & S_IRWXU) >> 6; acl->a_entries[1].e_tag = ACL_GROUP_OBJ; - acl->a_entries[1].e_id = ACL_UNDEFINED_ID; acl->a_entries[1].e_perm = (mode & S_IRWXG) >> 3; acl->a_entries[2].e_tag = ACL_OTHER; - acl->a_entries[2].e_id = ACL_UNDEFINED_ID; acl->a_entries[2].e_perm = (mode & S_IRWXO); return acl; } @@ -224,11 +224,11 @@ posix_acl_permission(struct inode *inode, const struct posix_acl *acl, int want) switch(pa->e_tag) { case ACL_USER_OBJ: /* (May have been checked already) */ - if (inode->i_uid == current_fsuid()) + if (uid_eq(inode->i_uid, current_fsuid())) goto check_perm; break; case ACL_USER: - if (pa->e_id == current_fsuid()) + if (uid_eq(pa->e_uid, current_fsuid())) goto mask; break; case ACL_GROUP_OBJ: @@ -239,7 +239,7 @@ posix_acl_permission(struct inode *inode, const struct posix_acl *acl, int want) } break; case ACL_GROUP: - if (in_group_p(pa->e_id)) { + if (in_group_p(pa->e_gid)) { found = 1; if ((pa->e_perm & want) == want) goto mask; diff --git a/fs/proc/base.c b/fs/proc/base.c index 1b6c84cbdb73..acd1960c28a2 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1089,7 +1089,8 @@ static ssize_t proc_loginuid_read(struct file * file, char __user * buf, if (!task) return -ESRCH; length = scnprintf(tmpbuf, TMPBUFLEN, "%u", - audit_get_loginuid(task)); + from_kuid(file->f_cred->user_ns, + audit_get_loginuid(task))); put_task_struct(task); return simple_read_from_buffer(buf, count, ppos, tmpbuf, length); } @@ -1101,6 +1102,7 @@ static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, char *page, *tmp; ssize_t length; uid_t loginuid; + kuid_t kloginuid; rcu_read_lock(); if (current != pid_task(proc_pid(inode), PIDTYPE_PID)) { @@ -1130,7 +1132,13 @@ static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, goto out_free_page; } - length = audit_set_loginuid(loginuid); + kloginuid = make_kuid(file->f_cred->user_ns, loginuid); + if (!uid_valid(kloginuid)) { + length = -EINVAL; + goto out_free_page; + } + + length = audit_set_loginuid(kloginuid); if (likely(length == 0)) length = count; @@ -2983,6 +2991,11 @@ static int proc_gid_map_open(struct inode *inode, struct file *file) return proc_id_map_open(inode, file, &proc_gid_seq_operations); } +static int proc_projid_map_open(struct inode *inode, struct file *file) +{ + return proc_id_map_open(inode, file, &proc_projid_seq_operations); +} + static const struct file_operations proc_uid_map_operations = { .open = proc_uid_map_open, .write = proc_uid_map_write, @@ -2998,6 +3011,14 @@ static const struct file_operations proc_gid_map_operations = { .llseek = seq_lseek, .release = proc_id_map_release, }; + +static const struct file_operations proc_projid_map_operations = { + .open = proc_projid_map_open, + .write = proc_projid_map_write, + .read = seq_read, + .llseek = seq_lseek, + .release = proc_id_map_release, +}; #endif /* CONFIG_USER_NS */ static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns, @@ -3105,6 +3126,7 @@ static const struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_USER_NS REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations), REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations), + REG("projid_map", S_IRUGO|S_IWUSR, proc_projid_map_operations), #endif }; @@ -3468,6 +3490,7 @@ static const struct pid_entry tid_base_stuff[] = { #ifdef CONFIG_USER_NS REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations), REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations), + REG("projid_map", S_IRUGO|S_IWUSR, proc_projid_map_operations), #endif }; diff --git a/fs/qnx4/inode.c b/fs/qnx4/inode.c index 552e994e3aa1..5c3c7b02e17b 100644 --- a/fs/qnx4/inode.c +++ b/fs/qnx4/inode.c @@ -312,8 +312,8 @@ struct inode *qnx4_iget(struct super_block *sb, unsigned long ino) (ino % QNX4_INODES_PER_BLOCK); inode->i_mode = le16_to_cpu(raw_inode->di_mode); - inode->i_uid = (uid_t)le16_to_cpu(raw_inode->di_uid); - inode->i_gid = (gid_t)le16_to_cpu(raw_inode->di_gid); + i_uid_write(inode, (uid_t)le16_to_cpu(raw_inode->di_uid)); + i_gid_write(inode, (gid_t)le16_to_cpu(raw_inode->di_gid)); set_nlink(inode, le16_to_cpu(raw_inode->di_nlink)); inode->i_size = le32_to_cpu(raw_inode->di_size); inode->i_mtime.tv_sec = le32_to_cpu(raw_inode->di_mtime); diff --git a/fs/qnx6/inode.c b/fs/qnx6/inode.c index 2049c814bda4..f4eef0b5e7b5 100644 --- a/fs/qnx6/inode.c +++ b/fs/qnx6/inode.c @@ -574,8 +574,8 @@ struct inode *qnx6_iget(struct super_block *sb, unsigned ino) raw_inode = ((struct qnx6_inode_entry *)page_address(page)) + offs; inode->i_mode = fs16_to_cpu(sbi, raw_inode->di_mode); - inode->i_uid = (uid_t)fs32_to_cpu(sbi, raw_inode->di_uid); - inode->i_gid = (gid_t)fs32_to_cpu(sbi, raw_inode->di_gid); + i_uid_write(inode, (uid_t)fs32_to_cpu(sbi, raw_inode->di_uid)); + i_gid_write(inode, (gid_t)fs32_to_cpu(sbi, raw_inode->di_gid)); inode->i_size = fs64_to_cpu(sbi, raw_inode->di_size); inode->i_mtime.tv_sec = fs32_to_cpu(sbi, raw_inode->di_mtime); inode->i_mtime.tv_nsec = 0; diff --git a/fs/quota/Makefile b/fs/quota/Makefile index 5f9e9e276af0..c66c37cdaa39 100644 --- a/fs/quota/Makefile +++ b/fs/quota/Makefile @@ -2,6 +2,6 @@ obj-$(CONFIG_QUOTA) += dquot.o obj-$(CONFIG_QFMT_V1) += quota_v1.o obj-$(CONFIG_QFMT_V2) += quota_v2.o obj-$(CONFIG_QUOTA_TREE) += quota_tree.o -obj-$(CONFIG_QUOTACTL) += quota.o +obj-$(CONFIG_QUOTACTL) += quota.o kqid.o obj-$(CONFIG_QUOTACTL_COMPAT) += compat.o obj-$(CONFIG_QUOTA_NETLINK_INTERFACE) += netlink.o diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index c495a3055e2a..557a9c20a215 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -253,8 +253,10 @@ static qsize_t inode_get_rsv_space(struct inode *inode); static void __dquot_initialize(struct inode *inode, int type); static inline unsigned int -hashfn(const struct super_block *sb, unsigned int id, int type) +hashfn(const struct super_block *sb, struct kqid qid) { + unsigned int id = from_kqid(&init_user_ns, qid); + int type = qid.type; unsigned long tmp; tmp = (((unsigned long)sb>>L1_CACHE_SHIFT) ^ id) * (MAXQUOTAS - type); @@ -267,7 +269,7 @@ hashfn(const struct super_block *sb, unsigned int id, int type) static inline void insert_dquot_hash(struct dquot *dquot) { struct hlist_head *head; - head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id, dquot->dq_type); + head = dquot_hash + hashfn(dquot->dq_sb, dquot->dq_id); hlist_add_head(&dquot->dq_hash, head); } @@ -277,15 +279,14 @@ static inline void remove_dquot_hash(struct dquot *dquot) } static struct dquot *find_dquot(unsigned int hashent, struct super_block *sb, - unsigned int id, int type) + struct kqid qid) { struct hlist_node *node; struct dquot *dquot; hlist_for_each (node, dquot_hash+hashent) { dquot = hlist_entry(node, struct dquot, dq_hash); - if (dquot->dq_sb == sb && dquot->dq_id == id && - dquot->dq_type == type) + if (dquot->dq_sb == sb && qid_eq(dquot->dq_id, qid)) return dquot; } return NULL; @@ -351,7 +352,7 @@ int dquot_mark_dquot_dirty(struct dquot *dquot) spin_lock(&dq_list_lock); if (!test_and_set_bit(DQ_MOD_B, &dquot->dq_flags)) { list_add(&dquot->dq_dirty, &sb_dqopt(dquot->dq_sb)-> - info[dquot->dq_type].dqi_dirty_list); + info[dquot->dq_id.type].dqi_dirty_list); ret = 0; } spin_unlock(&dq_list_lock); @@ -410,17 +411,17 @@ int dquot_acquire(struct dquot *dquot) mutex_lock(&dquot->dq_lock); mutex_lock(&dqopt->dqio_mutex); if (!test_bit(DQ_READ_B, &dquot->dq_flags)) - ret = dqopt->ops[dquot->dq_type]->read_dqblk(dquot); + ret = dqopt->ops[dquot->dq_id.type]->read_dqblk(dquot); if (ret < 0) goto out_iolock; set_bit(DQ_READ_B, &dquot->dq_flags); /* Instantiate dquot if needed */ if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags) && !dquot->dq_off) { - ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot); + ret = dqopt->ops[dquot->dq_id.type]->commit_dqblk(dquot); /* Write the info if needed */ - if (info_dirty(&dqopt->info[dquot->dq_type])) { - ret2 = dqopt->ops[dquot->dq_type]->write_file_info( - dquot->dq_sb, dquot->dq_type); + if (info_dirty(&dqopt->info[dquot->dq_id.type])) { + ret2 = dqopt->ops[dquot->dq_id.type]->write_file_info( + dquot->dq_sb, dquot->dq_id.type); } if (ret < 0) goto out_iolock; @@ -455,7 +456,7 @@ int dquot_commit(struct dquot *dquot) /* Inactive dquot can be only if there was error during read/init * => we have better not writing it */ if (test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) - ret = dqopt->ops[dquot->dq_type]->commit_dqblk(dquot); + ret = dqopt->ops[dquot->dq_id.type]->commit_dqblk(dquot); else ret = -EIO; out_sem: @@ -477,12 +478,12 @@ int dquot_release(struct dquot *dquot) if (atomic_read(&dquot->dq_count) > 1) goto out_dqlock; mutex_lock(&dqopt->dqio_mutex); - if (dqopt->ops[dquot->dq_type]->release_dqblk) { - ret = dqopt->ops[dquot->dq_type]->release_dqblk(dquot); + if (dqopt->ops[dquot->dq_id.type]->release_dqblk) { + ret = dqopt->ops[dquot->dq_id.type]->release_dqblk(dquot); /* Write the info */ - if (info_dirty(&dqopt->info[dquot->dq_type])) { - ret2 = dqopt->ops[dquot->dq_type]->write_file_info( - dquot->dq_sb, dquot->dq_type); + if (info_dirty(&dqopt->info[dquot->dq_id.type])) { + ret2 = dqopt->ops[dquot->dq_id.type]->write_file_info( + dquot->dq_sb, dquot->dq_id.type); } if (ret >= 0) ret = ret2; @@ -521,7 +522,7 @@ restart: list_for_each_entry_safe(dquot, tmp, &inuse_list, dq_inuse) { if (dquot->dq_sb != sb) continue; - if (dquot->dq_type != type) + if (dquot->dq_id.type != type) continue; /* Wait for dquot users */ if (atomic_read(&dquot->dq_count)) { @@ -741,7 +742,8 @@ void dqput(struct dquot *dquot) #ifdef CONFIG_QUOTA_DEBUG if (!atomic_read(&dquot->dq_count)) { quota_error(dquot->dq_sb, "trying to free free dquot of %s %d", - quotatypes[dquot->dq_type], dquot->dq_id); + quotatypes[dquot->dq_id.type], + from_kqid(&init_user_ns, dquot->dq_id)); BUG(); } #endif @@ -752,7 +754,7 @@ we_slept: /* We have more than one user... nothing to do */ atomic_dec(&dquot->dq_count); /* Releasing dquot during quotaoff phase? */ - if (!sb_has_quota_active(dquot->dq_sb, dquot->dq_type) && + if (!sb_has_quota_active(dquot->dq_sb, dquot->dq_id.type) && atomic_read(&dquot->dq_count) == 1) wake_up(&dquot->dq_wait_unused); spin_unlock(&dq_list_lock); @@ -815,7 +817,7 @@ static struct dquot *get_empty_dquot(struct super_block *sb, int type) INIT_LIST_HEAD(&dquot->dq_dirty); init_waitqueue_head(&dquot->dq_wait_unused); dquot->dq_sb = sb; - dquot->dq_type = type; + dquot->dq_id = make_kqid_invalid(type); atomic_set(&dquot->dq_count, 1); return dquot; @@ -829,35 +831,35 @@ static struct dquot *get_empty_dquot(struct super_block *sb, int type) * a) checking for quota flags under dq_list_lock and * b) getting a reference to dquot before we release dq_list_lock */ -struct dquot *dqget(struct super_block *sb, unsigned int id, int type) +struct dquot *dqget(struct super_block *sb, struct kqid qid) { - unsigned int hashent = hashfn(sb, id, type); + unsigned int hashent = hashfn(sb, qid); struct dquot *dquot = NULL, *empty = NULL; - if (!sb_has_quota_active(sb, type)) + if (!sb_has_quota_active(sb, qid.type)) return NULL; we_slept: spin_lock(&dq_list_lock); spin_lock(&dq_state_lock); - if (!sb_has_quota_active(sb, type)) { + if (!sb_has_quota_active(sb, qid.type)) { spin_unlock(&dq_state_lock); spin_unlock(&dq_list_lock); goto out; } spin_unlock(&dq_state_lock); - dquot = find_dquot(hashent, sb, id, type); + dquot = find_dquot(hashent, sb, qid); if (!dquot) { if (!empty) { spin_unlock(&dq_list_lock); - empty = get_empty_dquot(sb, type); + empty = get_empty_dquot(sb, qid.type); if (!empty) schedule(); /* Try to wait for a moment... */ goto we_slept; } dquot = empty; empty = NULL; - dquot->dq_id = id; + dquot->dq_id = qid; /* all dquots go on the inuse_list */ put_inuse(dquot); /* hash it first so it can be found */ @@ -1129,8 +1131,7 @@ static void dquot_decr_space(struct dquot *dquot, qsize_t number) struct dquot_warn { struct super_block *w_sb; - qid_t w_dq_id; - short w_dq_type; + struct kqid w_dq_id; short w_type; }; @@ -1154,11 +1155,11 @@ static int need_print_warning(struct dquot_warn *warn) if (!flag_print_warnings) return 0; - switch (warn->w_dq_type) { + switch (warn->w_dq_id.type) { case USRQUOTA: - return current_fsuid() == warn->w_dq_id; + return uid_eq(current_fsuid(), warn->w_dq_id.uid); case GRPQUOTA: - return in_group_p(warn->w_dq_id); + return in_group_p(warn->w_dq_id.gid); } return 0; } @@ -1184,7 +1185,7 @@ static void print_warning(struct dquot_warn *warn) tty_write_message(tty, ": warning, "); else tty_write_message(tty, ": write failed, "); - tty_write_message(tty, quotatypes[warn->w_dq_type]); + tty_write_message(tty, quotatypes[warn->w_dq_id.type]); switch (warntype) { case QUOTA_NL_IHARDWARN: msg = " file limit reached.\r\n"; @@ -1218,7 +1219,6 @@ static void prepare_warning(struct dquot_warn *warn, struct dquot *dquot, warn->w_type = warntype; warn->w_sb = dquot->dq_sb; warn->w_dq_id = dquot->dq_id; - warn->w_dq_type = dquot->dq_type; } /* @@ -1236,14 +1236,14 @@ static void flush_warnings(struct dquot_warn *warn) #ifdef CONFIG_PRINT_QUOTA_WARNING print_warning(&warn[i]); #endif - quota_send_warning(warn[i].w_dq_type, warn[i].w_dq_id, + quota_send_warning(warn[i].w_dq_id, warn[i].w_sb->s_dev, warn[i].w_type); } } static int ignore_hardlimit(struct dquot *dquot) { - struct mem_dqinfo *info = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_type]; + struct mem_dqinfo *info = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type]; return capable(CAP_SYS_RESOURCE) && (info->dqi_format->qf_fmt_id != QFMT_VFS_OLD || @@ -1256,7 +1256,7 @@ static int check_idq(struct dquot *dquot, qsize_t inodes, { qsize_t newinodes = dquot->dq_dqb.dqb_curinodes + inodes; - if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type) || + if (!sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_id.type) || test_bit(DQ_FAKE_B, &dquot->dq_flags)) return 0; @@ -1281,7 +1281,7 @@ static int check_idq(struct dquot *dquot, qsize_t inodes, dquot->dq_dqb.dqb_itime == 0) { prepare_warning(warn, dquot, QUOTA_NL_ISOFTWARN); dquot->dq_dqb.dqb_itime = get_seconds() + - sb_dqopt(dquot->dq_sb)->info[dquot->dq_type].dqi_igrace; + sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type].dqi_igrace; } return 0; @@ -1294,7 +1294,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, qsize_t tspace; struct super_block *sb = dquot->dq_sb; - if (!sb_has_quota_limits_enabled(sb, dquot->dq_type) || + if (!sb_has_quota_limits_enabled(sb, dquot->dq_id.type) || test_bit(DQ_FAKE_B, &dquot->dq_flags)) return 0; @@ -1325,7 +1325,7 @@ static int check_bdq(struct dquot *dquot, qsize_t space, int prealloc, if (!prealloc) { prepare_warning(warn, dquot, QUOTA_NL_BSOFTWARN); dquot->dq_dqb.dqb_btime = get_seconds() + - sb_dqopt(sb)->info[dquot->dq_type].dqi_bgrace; + sb_dqopt(sb)->info[dquot->dq_id.type].dqi_bgrace; } else /* @@ -1344,7 +1344,7 @@ static int info_idq_free(struct dquot *dquot, qsize_t inodes) if (test_bit(DQ_FAKE_B, &dquot->dq_flags) || dquot->dq_dqb.dqb_curinodes <= dquot->dq_dqb.dqb_isoftlimit || - !sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_type)) + !sb_has_quota_limits_enabled(dquot->dq_sb, dquot->dq_id.type)) return QUOTA_NL_NOWARN; newinodes = dquot->dq_dqb.dqb_curinodes - inodes; @@ -1390,7 +1390,6 @@ static int dquot_active(const struct inode *inode) */ static void __dquot_initialize(struct inode *inode, int type) { - unsigned int id = 0; int cnt; struct dquot *got[MAXQUOTAS]; struct super_block *sb = inode->i_sb; @@ -1403,18 +1402,19 @@ static void __dquot_initialize(struct inode *inode, int type) /* First get references to structures we might need. */ for (cnt = 0; cnt < MAXQUOTAS; cnt++) { + struct kqid qid; got[cnt] = NULL; if (type != -1 && cnt != type) continue; switch (cnt) { case USRQUOTA: - id = inode->i_uid; + qid = make_kqid_uid(inode->i_uid); break; case GRPQUOTA: - id = inode->i_gid; + qid = make_kqid_gid(inode->i_gid); break; } - got[cnt] = dqget(sb, id, cnt); + got[cnt] = dqget(sb, qid); } down_write(&sb_dqopt(sb)->dqptr_sem); @@ -1897,10 +1897,10 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr) if (!dquot_active(inode)) return 0; - if (iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) - transfer_to[USRQUOTA] = dqget(sb, iattr->ia_uid, USRQUOTA); - if (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) - transfer_to[GRPQUOTA] = dqget(sb, iattr->ia_gid, GRPQUOTA); + if (iattr->ia_valid & ATTR_UID && !uid_eq(iattr->ia_uid, inode->i_uid)) + transfer_to[USRQUOTA] = dqget(sb, make_kqid_uid(iattr->ia_uid)); + if (iattr->ia_valid & ATTR_GID && !gid_eq(iattr->ia_gid, inode->i_gid)) + transfer_to[GRPQUOTA] = dqget(sb, make_kqid_gid(iattr->ia_gid)); ret = __dquot_transfer(inode, transfer_to); dqput_all(transfer_to); @@ -2360,9 +2360,9 @@ static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di) memset(di, 0, sizeof(*di)); di->d_version = FS_DQUOT_VERSION; - di->d_flags = dquot->dq_type == USRQUOTA ? + di->d_flags = dquot->dq_id.type == USRQUOTA ? FS_USER_QUOTA : FS_GROUP_QUOTA; - di->d_id = dquot->dq_id; + di->d_id = from_kqid_munged(current_user_ns(), dquot->dq_id); spin_lock(&dq_data_lock); di->d_blk_hardlimit = stoqb(dm->dqb_bhardlimit); @@ -2376,12 +2376,12 @@ static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di) spin_unlock(&dq_data_lock); } -int dquot_get_dqblk(struct super_block *sb, int type, qid_t id, +int dquot_get_dqblk(struct super_block *sb, struct kqid qid, struct fs_disk_quota *di) { struct dquot *dquot; - dquot = dqget(sb, id, type); + dquot = dqget(sb, qid); if (!dquot) return -ESRCH; do_get_dqblk(dquot, di); @@ -2401,7 +2401,7 @@ static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di) { struct mem_dqblk *dm = &dquot->dq_dqb; int check_blim = 0, check_ilim = 0; - struct mem_dqinfo *dqi = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_type]; + struct mem_dqinfo *dqi = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type]; if (di->d_fieldmask & ~VFS_FS_DQ_MASK) return -EINVAL; @@ -2488,13 +2488,13 @@ static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di) return 0; } -int dquot_set_dqblk(struct super_block *sb, int type, qid_t id, +int dquot_set_dqblk(struct super_block *sb, struct kqid qid, struct fs_disk_quota *di) { struct dquot *dquot; int rc; - dquot = dqget(sb, id, type); + dquot = dqget(sb, qid); if (!dquot) { rc = -ESRCH; goto out; diff --git a/fs/quota/kqid.c b/fs/quota/kqid.c new file mode 100644 index 000000000000..2f97b0e2c501 --- /dev/null +++ b/fs/quota/kqid.c @@ -0,0 +1,132 @@ +#include <linux/fs.h> +#include <linux/quota.h> +#include <linux/export.h> + +/** + * qid_eq - Test to see if to kquid values are the same + * @left: A qid value + * @right: Another quid value + * + * Return true if the two qid values are equal and false otherwise. + */ +bool qid_eq(struct kqid left, struct kqid right) +{ + if (left.type != right.type) + return false; + switch(left.type) { + case USRQUOTA: + return uid_eq(left.uid, right.uid); + case GRPQUOTA: + return gid_eq(left.gid, right.gid); + case PRJQUOTA: + return projid_eq(left.projid, right.projid); + default: + BUG(); + } +} +EXPORT_SYMBOL(qid_eq); + +/** + * qid_lt - Test to see if one qid value is less than another + * @left: The possibly lesser qid value + * @right: The possibly greater qid value + * + * Return true if left is less than right and false otherwise. + */ +bool qid_lt(struct kqid left, struct kqid right) +{ + if (left.type < right.type) + return true; + if (left.type > right.type) + return false; + switch (left.type) { + case USRQUOTA: + return uid_lt(left.uid, right.uid); + case GRPQUOTA: + return gid_lt(left.gid, right.gid); + case PRJQUOTA: + return projid_lt(left.projid, right.projid); + default: + BUG(); + } +} +EXPORT_SYMBOL(qid_lt); + +/** + * from_kqid - Create a qid from a kqid user-namespace pair. + * @targ: The user namespace we want a qid in. + * @kuid: The kernel internal quota identifier to start with. + * + * Map @kqid into the user-namespace specified by @targ and + * return the resulting qid. + * + * There is always a mapping into the initial user_namespace. + * + * If @kqid has no mapping in @targ (qid_t)-1 is returned. + */ +qid_t from_kqid(struct user_namespace *targ, struct kqid kqid) +{ + switch (kqid.type) { + case USRQUOTA: + return from_kuid(targ, kqid.uid); + case GRPQUOTA: + return from_kgid(targ, kqid.gid); + case PRJQUOTA: + return from_kprojid(targ, kqid.projid); + default: + BUG(); + } +} +EXPORT_SYMBOL(from_kqid); + +/** + * from_kqid_munged - Create a qid from a kqid user-namespace pair. + * @targ: The user namespace we want a qid in. + * @kqid: The kernel internal quota identifier to start with. + * + * Map @kqid into the user-namespace specified by @targ and + * return the resulting qid. + * + * There is always a mapping into the initial user_namespace. + * + * Unlike from_kqid from_kqid_munged never fails and always + * returns a valid projid. This makes from_kqid_munged + * appropriate for use in places where failing to provide + * a qid_t is not a good option. + * + * If @kqid has no mapping in @targ the kqid.type specific + * overflow identifier is returned. + */ +qid_t from_kqid_munged(struct user_namespace *targ, struct kqid kqid) +{ + switch (kqid.type) { + case USRQUOTA: + return from_kuid_munged(targ, kqid.uid); + case GRPQUOTA: + return from_kgid_munged(targ, kqid.gid); + case PRJQUOTA: + return from_kprojid_munged(targ, kqid.projid); + default: + BUG(); + } +} +EXPORT_SYMBOL(from_kqid_munged); + +/** + * qid_valid - Report if a valid value is stored in a kqid. + * @qid: The kernel internal quota identifier to test. + */ +bool qid_valid(struct kqid qid) +{ + switch (qid.type) { + case USRQUOTA: + return uid_valid(qid.uid); + case GRPQUOTA: + return gid_valid(qid.gid); + case PRJQUOTA: + return projid_valid(qid.projid); + default: + BUG(); + } +} +EXPORT_SYMBOL(qid_valid); diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c index d67908b407d9..16e8abb7709b 100644 --- a/fs/quota/netlink.c +++ b/fs/quota/netlink.c @@ -30,7 +30,7 @@ static struct genl_family quota_genl_family = { * */ -void quota_send_warning(short type, unsigned int id, dev_t dev, +void quota_send_warning(struct kqid qid, dev_t dev, const char warntype) { static atomic_t seq; @@ -56,10 +56,11 @@ void quota_send_warning(short type, unsigned int id, dev_t dev, "VFS: Cannot store netlink header in quota warning.\n"); goto err_out; } - ret = nla_put_u32(skb, QUOTA_NL_A_QTYPE, type); + ret = nla_put_u32(skb, QUOTA_NL_A_QTYPE, qid.type); if (ret) goto attr_err_out; - ret = nla_put_u64(skb, QUOTA_NL_A_EXCESS_ID, id); + ret = nla_put_u64(skb, QUOTA_NL_A_EXCESS_ID, + from_kqid_munged(&init_user_ns, qid)); if (ret) goto attr_err_out; ret = nla_put_u32(skb, QUOTA_NL_A_WARNING, warntype); @@ -71,7 +72,8 @@ void quota_send_warning(short type, unsigned int id, dev_t dev, ret = nla_put_u32(skb, QUOTA_NL_A_DEV_MINOR, MINOR(dev)); if (ret) goto attr_err_out; - ret = nla_put_u64(skb, QUOTA_NL_A_CAUSED_ID, current_uid()); + ret = nla_put_u64(skb, QUOTA_NL_A_CAUSED_ID, + from_kuid_munged(&init_user_ns, current_uid())); if (ret) goto attr_err_out; genlmsg_end(skb, msg_head); diff --git a/fs/quota/quota.c b/fs/quota/quota.c index 6f155788cbc6..ff0135d6bc51 100644 --- a/fs/quota/quota.c +++ b/fs/quota/quota.c @@ -32,8 +32,8 @@ static int check_quotactl_permission(struct super_block *sb, int type, int cmd, /* allow to query information for dquots we "own" */ case Q_GETQUOTA: case Q_XGETQUOTA: - if ((type == USRQUOTA && current_euid() == id) || - (type == GRPQUOTA && in_egroup_p(id))) + if ((type == USRQUOTA && uid_eq(current_euid(), make_kuid(current_user_ns(), id))) || + (type == GRPQUOTA && in_egroup_p(make_kgid(current_user_ns(), id)))) break; /*FALLTHROUGH*/ default: @@ -130,13 +130,17 @@ static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src) static int quota_getquota(struct super_block *sb, int type, qid_t id, void __user *addr) { + struct kqid qid; struct fs_disk_quota fdq; struct if_dqblk idq; int ret; if (!sb->s_qcop->get_dqblk) return -ENOSYS; - ret = sb->s_qcop->get_dqblk(sb, type, id, &fdq); + qid = make_kqid(current_user_ns(), type, id); + if (!qid_valid(qid)) + return -EINVAL; + ret = sb->s_qcop->get_dqblk(sb, qid, &fdq); if (ret) return ret; copy_to_if_dqblk(&idq, &fdq); @@ -176,13 +180,17 @@ static int quota_setquota(struct super_block *sb, int type, qid_t id, { struct fs_disk_quota fdq; struct if_dqblk idq; + struct kqid qid; if (copy_from_user(&idq, addr, sizeof(idq))) return -EFAULT; if (!sb->s_qcop->set_dqblk) return -ENOSYS; + qid = make_kqid(current_user_ns(), type, id); + if (!qid_valid(qid)) + return -EINVAL; copy_from_if_dqblk(&fdq, &idq); - return sb->s_qcop->set_dqblk(sb, type, id, &fdq); + return sb->s_qcop->set_dqblk(sb, qid, &fdq); } static int quota_setxstate(struct super_block *sb, int cmd, void __user *addr) @@ -213,23 +221,31 @@ static int quota_setxquota(struct super_block *sb, int type, qid_t id, void __user *addr) { struct fs_disk_quota fdq; + struct kqid qid; if (copy_from_user(&fdq, addr, sizeof(fdq))) return -EFAULT; if (!sb->s_qcop->set_dqblk) return -ENOSYS; - return sb->s_qcop->set_dqblk(sb, type, id, &fdq); + qid = make_kqid(current_user_ns(), type, id); + if (!qid_valid(qid)) + return -EINVAL; + return sb->s_qcop->set_dqblk(sb, qid, &fdq); } static int quota_getxquota(struct super_block *sb, int type, qid_t id, void __user *addr) { struct fs_disk_quota fdq; + struct kqid qid; int ret; if (!sb->s_qcop->get_dqblk) return -ENOSYS; - ret = sb->s_qcop->get_dqblk(sb, type, id, &fdq); + qid = make_kqid(current_user_ns(), type, id); + if (!qid_valid(qid)) + return -EINVAL; + ret = sb->s_qcop->get_dqblk(sb, qid, &fdq); if (!ret && copy_to_user(addr, &fdq, sizeof(fdq))) return -EFAULT; return ret; diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c index e41c1becf096..d65877fbe8f4 100644 --- a/fs/quota/quota_tree.c +++ b/fs/quota/quota_tree.c @@ -22,9 +22,10 @@ MODULE_LICENSE("GPL"); #define __QUOTA_QT_PARANOIA -static int get_index(struct qtree_mem_dqinfo *info, qid_t id, int depth) +static int get_index(struct qtree_mem_dqinfo *info, struct kqid qid, int depth) { unsigned int epb = info->dqi_usable_bs >> 2; + qid_t id = from_kqid(&init_user_ns, qid); depth = info->dqi_qtree_depth - depth - 1; while (depth--) @@ -244,7 +245,7 @@ static uint find_free_dqentry(struct qtree_mem_dqinfo *info, /* This is enough as the block is already zeroed and the entry * list is empty... */ info->dqi_free_entry = blk; - mark_info_dirty(dquot->dq_sb, dquot->dq_type); + mark_info_dirty(dquot->dq_sb, dquot->dq_id.type); } /* Block will be full? */ if (le16_to_cpu(dh->dqdh_entries) + 1 >= qtree_dqstr_in_blk(info)) { @@ -357,7 +358,7 @@ static inline int dq_insert_tree(struct qtree_mem_dqinfo *info, */ int qtree_write_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) { - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct super_block *sb = dquot->dq_sb; ssize_t ret; char *ddquot = getdqbuf(info->dqi_entry_size); @@ -538,8 +539,9 @@ static loff_t find_block_dqentry(struct qtree_mem_dqinfo *info, ddquot += info->dqi_entry_size; } if (i == qtree_dqstr_in_blk(info)) { - quota_error(dquot->dq_sb, "Quota for id %u referenced " - "but not present", dquot->dq_id); + quota_error(dquot->dq_sb, + "Quota for id %u referenced but not present", + from_kqid(&init_user_ns, dquot->dq_id)); ret = -EIO; goto out_buf; } else { @@ -589,7 +591,7 @@ static inline loff_t find_dqentry(struct qtree_mem_dqinfo *info, int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) { - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct super_block *sb = dquot->dq_sb; loff_t offset; char *ddquot; @@ -607,8 +609,10 @@ int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) offset = find_dqentry(info, dquot); if (offset <= 0) { /* Entry not present? */ if (offset < 0) - quota_error(sb, "Can't read quota structure " - "for id %u", dquot->dq_id); + quota_error(sb,"Can't read quota structure " + "for id %u", + from_kqid(&init_user_ns, + dquot->dq_id)); dquot->dq_off = 0; set_bit(DQ_FAKE_B, &dquot->dq_flags); memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk)); @@ -626,7 +630,7 @@ int qtree_read_dquot(struct qtree_mem_dqinfo *info, struct dquot *dquot) if (ret >= 0) ret = -EIO; quota_error(sb, "Error while reading quota structure for id %u", - dquot->dq_id); + from_kqid(&init_user_ns, dquot->dq_id)); set_bit(DQ_FAKE_B, &dquot->dq_flags); memset(&dquot->dq_dqb, 0, sizeof(struct mem_dqblk)); kfree(ddquot); diff --git a/fs/quota/quota_v1.c b/fs/quota/quota_v1.c index 34b37a67bb16..469c6848b322 100644 --- a/fs/quota/quota_v1.c +++ b/fs/quota/quota_v1.c @@ -54,7 +54,7 @@ static void v1_mem2disk_dqblk(struct v1_disk_dqblk *d, struct mem_dqblk *m) static int v1_read_dqblk(struct dquot *dquot) { - int type = dquot->dq_type; + int type = dquot->dq_id.type; struct v1_disk_dqblk dqblk; if (!sb_dqopt(dquot->dq_sb)->files[type]) @@ -63,7 +63,8 @@ static int v1_read_dqblk(struct dquot *dquot) /* Set structure to 0s in case read fails/is after end of file */ memset(&dqblk, 0, sizeof(struct v1_disk_dqblk)); dquot->dq_sb->s_op->quota_read(dquot->dq_sb, type, (char *)&dqblk, - sizeof(struct v1_disk_dqblk), v1_dqoff(dquot->dq_id)); + sizeof(struct v1_disk_dqblk), + v1_dqoff(from_kqid(&init_user_ns, dquot->dq_id))); v1_disk2mem_dqblk(&dquot->dq_dqb, &dqblk); if (dquot->dq_dqb.dqb_bhardlimit == 0 && @@ -78,12 +79,13 @@ static int v1_read_dqblk(struct dquot *dquot) static int v1_commit_dqblk(struct dquot *dquot) { - short type = dquot->dq_type; + short type = dquot->dq_id.type; ssize_t ret; struct v1_disk_dqblk dqblk; v1_mem2disk_dqblk(&dqblk, &dquot->dq_dqb); - if (dquot->dq_id == 0) { + if (((type == USRQUOTA) && uid_eq(dquot->dq_id.uid, GLOBAL_ROOT_UID)) || + ((type == GRPQUOTA) && gid_eq(dquot->dq_id.gid, GLOBAL_ROOT_GID))) { dqblk.dqb_btime = sb_dqopt(dquot->dq_sb)->info[type].dqi_bgrace; dqblk.dqb_itime = @@ -93,7 +95,7 @@ static int v1_commit_dqblk(struct dquot *dquot) if (sb_dqopt(dquot->dq_sb)->files[type]) ret = dquot->dq_sb->s_op->quota_write(dquot->dq_sb, type, (char *)&dqblk, sizeof(struct v1_disk_dqblk), - v1_dqoff(dquot->dq_id)); + v1_dqoff(from_kqid(&init_user_ns, dquot->dq_id))); if (ret != sizeof(struct v1_disk_dqblk)) { quota_error(dquot->dq_sb, "dquota write failed"); if (ret >= 0) diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c index f1ab3604db5a..02751ec695c5 100644 --- a/fs/quota/quota_v2.c +++ b/fs/quota/quota_v2.c @@ -196,7 +196,7 @@ static void v2r0_mem2diskdqb(void *dp, struct dquot *dquot) struct v2r0_disk_dqblk *d = dp; struct mem_dqblk *m = &dquot->dq_dqb; struct qtree_mem_dqinfo *info = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv; d->dqb_ihardlimit = cpu_to_le32(m->dqb_ihardlimit); d->dqb_isoftlimit = cpu_to_le32(m->dqb_isoftlimit); @@ -206,7 +206,7 @@ static void v2r0_mem2diskdqb(void *dp, struct dquot *dquot) d->dqb_bsoftlimit = cpu_to_le32(v2_stoqb(m->dqb_bsoftlimit)); d->dqb_curspace = cpu_to_le64(m->dqb_curspace); d->dqb_btime = cpu_to_le64(m->dqb_btime); - d->dqb_id = cpu_to_le32(dquot->dq_id); + d->dqb_id = cpu_to_le32(from_kqid(&init_user_ns, dquot->dq_id)); if (qtree_entry_unused(info, dp)) d->dqb_itime = cpu_to_le64(1); } @@ -215,11 +215,13 @@ static int v2r0_is_id(void *dp, struct dquot *dquot) { struct v2r0_disk_dqblk *d = dp; struct qtree_mem_dqinfo *info = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv; if (qtree_entry_unused(info, dp)) return 0; - return le32_to_cpu(d->dqb_id) == dquot->dq_id; + return qid_eq(make_kqid(&init_user_ns, dquot->dq_id.type, + le32_to_cpu(d->dqb_id)), + dquot->dq_id); } static void v2r1_disk2memdqb(struct dquot *dquot, void *dp) @@ -247,7 +249,7 @@ static void v2r1_mem2diskdqb(void *dp, struct dquot *dquot) struct v2r1_disk_dqblk *d = dp; struct mem_dqblk *m = &dquot->dq_dqb; struct qtree_mem_dqinfo *info = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv; d->dqb_ihardlimit = cpu_to_le64(m->dqb_ihardlimit); d->dqb_isoftlimit = cpu_to_le64(m->dqb_isoftlimit); @@ -257,7 +259,7 @@ static void v2r1_mem2diskdqb(void *dp, struct dquot *dquot) d->dqb_bsoftlimit = cpu_to_le64(v2_stoqb(m->dqb_bsoftlimit)); d->dqb_curspace = cpu_to_le64(m->dqb_curspace); d->dqb_btime = cpu_to_le64(m->dqb_btime); - d->dqb_id = cpu_to_le32(dquot->dq_id); + d->dqb_id = cpu_to_le32(from_kqid(&init_user_ns, dquot->dq_id)); if (qtree_entry_unused(info, dp)) d->dqb_itime = cpu_to_le64(1); } @@ -266,26 +268,28 @@ static int v2r1_is_id(void *dp, struct dquot *dquot) { struct v2r1_disk_dqblk *d = dp; struct qtree_mem_dqinfo *info = - sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv; + sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv; if (qtree_entry_unused(info, dp)) return 0; - return le32_to_cpu(d->dqb_id) == dquot->dq_id; + return qid_eq(make_kqid(&init_user_ns, dquot->dq_id.type, + le32_to_cpu(d->dqb_id)), + dquot->dq_id); } static int v2_read_dquot(struct dquot *dquot) { - return qtree_read_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv, dquot); + return qtree_read_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv, dquot); } static int v2_write_dquot(struct dquot *dquot) { - return qtree_write_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv, dquot); + return qtree_write_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv, dquot); } static int v2_release_dquot(struct dquot *dquot) { - return qtree_release_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_type)->dqi_priv, dquot); + return qtree_release_dquot(sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv, dquot); } static int v2_free_file_info(struct super_block *sb, int type) diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 855da58db145..46485557cdc6 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -1155,8 +1155,8 @@ static void init_inode(struct inode *inode, struct treepath *path) set_inode_sd_version(inode, STAT_DATA_V1); inode->i_mode = sd_v1_mode(sd); set_nlink(inode, sd_v1_nlink(sd)); - inode->i_uid = sd_v1_uid(sd); - inode->i_gid = sd_v1_gid(sd); + i_uid_write(inode, sd_v1_uid(sd)); + i_gid_write(inode, sd_v1_gid(sd)); inode->i_size = sd_v1_size(sd); inode->i_atime.tv_sec = sd_v1_atime(sd); inode->i_mtime.tv_sec = sd_v1_mtime(sd); @@ -1200,9 +1200,9 @@ static void init_inode(struct inode *inode, struct treepath *path) inode->i_mode = sd_v2_mode(sd); set_nlink(inode, sd_v2_nlink(sd)); - inode->i_uid = sd_v2_uid(sd); + i_uid_write(inode, sd_v2_uid(sd)); inode->i_size = sd_v2_size(sd); - inode->i_gid = sd_v2_gid(sd); + i_gid_write(inode, sd_v2_gid(sd)); inode->i_mtime.tv_sec = sd_v2_mtime(sd); inode->i_atime.tv_sec = sd_v2_atime(sd); inode->i_ctime.tv_sec = sd_v2_ctime(sd); @@ -1258,9 +1258,9 @@ static void inode2sd(void *sd, struct inode *inode, loff_t size) set_sd_v2_mode(sd_v2, inode->i_mode); set_sd_v2_nlink(sd_v2, inode->i_nlink); - set_sd_v2_uid(sd_v2, inode->i_uid); + set_sd_v2_uid(sd_v2, i_uid_read(inode)); set_sd_v2_size(sd_v2, size); - set_sd_v2_gid(sd_v2, inode->i_gid); + set_sd_v2_gid(sd_v2, i_gid_read(inode)); set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec); set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec); set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec); @@ -1280,8 +1280,8 @@ static void inode2sd_v1(void *sd, struct inode *inode, loff_t size) struct stat_data_v1 *sd_v1 = (struct stat_data_v1 *)sd; set_sd_v1_mode(sd_v1, inode->i_mode); - set_sd_v1_uid(sd_v1, inode->i_uid); - set_sd_v1_gid(sd_v1, inode->i_gid); + set_sd_v1_uid(sd_v1, i_uid_read(inode)); + set_sd_v1_gid(sd_v1, i_gid_read(inode)); set_sd_v1_nlink(sd_v1, inode->i_nlink); set_sd_v1_size(sd_v1, size); set_sd_v1_atime(sd_v1, inode->i_atime.tv_sec); @@ -1869,7 +1869,7 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th, goto out_bad_inode; } if (old_format_only(sb)) { - if (inode->i_uid & ~0xffff || inode->i_gid & ~0xffff) { + if (i_uid_read(inode) & ~0xffff || i_gid_read(inode) & ~0xffff) { pathrelse(&path_to_key); /* i_uid or i_gid is too big to be stored in stat data v3.5 */ err = -EINVAL; @@ -3140,16 +3140,16 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) } } - if ((((attr->ia_valid & ATTR_UID) && (attr->ia_uid & ~0xffff)) || - ((attr->ia_valid & ATTR_GID) && (attr->ia_gid & ~0xffff))) && + if ((((attr->ia_valid & ATTR_UID) && (from_kuid(&init_user_ns, attr->ia_uid) & ~0xffff)) || + ((attr->ia_valid & ATTR_GID) && (from_kgid(&init_user_ns, attr->ia_gid) & ~0xffff))) && (get_inode_sd_version(inode) == STAT_DATA_V1)) { /* stat data of format v3.5 has 16 bit uid and gid */ error = -EINVAL; goto out; } - if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) || - (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) { + if ((ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) || + (ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) { struct reiserfs_transaction_handle th; int jbegin_count = 2 * diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c index 44474f9b990d..d7c01ef64eda 100644 --- a/fs/reiserfs/xattr_acl.c +++ b/fs/reiserfs/xattr_acl.c @@ -30,7 +30,7 @@ posix_acl_set(struct dentry *dentry, const char *name, const void *value, return -EPERM; if (value) { - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (IS_ERR(acl)) { return PTR_ERR(acl); } else if (acl) { @@ -77,7 +77,7 @@ posix_acl_get(struct dentry *dentry, const char *name, void *buffer, return PTR_ERR(acl); if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, buffer, size); + error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size); posix_acl_release(acl); return error; @@ -121,15 +121,23 @@ static struct posix_acl *posix_acl_from_disk(const void *value, size_t size) case ACL_OTHER: value = (char *)value + sizeof(reiserfs_acl_entry_short); - acl->a_entries[n].e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + value = (char *)value + sizeof(reiserfs_acl_entry); + if ((char *)value > end) + goto fail; + acl->a_entries[n].e_uid = + make_kuid(&init_user_ns, + le32_to_cpu(entry->e_id)); + break; case ACL_GROUP: value = (char *)value + sizeof(reiserfs_acl_entry); if ((char *)value > end) goto fail; - acl->a_entries[n].e_id = le32_to_cpu(entry->e_id); + acl->a_entries[n].e_gid = + make_kgid(&init_user_ns, + le32_to_cpu(entry->e_id)); break; default: @@ -164,13 +172,19 @@ static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size) ext_acl->a_version = cpu_to_le32(REISERFS_ACL_VERSION); e = (char *)ext_acl + sizeof(reiserfs_acl_header); for (n = 0; n < acl->a_count; n++) { + const struct posix_acl_entry *acl_e = &acl->a_entries[n]; reiserfs_acl_entry *entry = (reiserfs_acl_entry *) e; entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); switch (acl->a_entries[n].e_tag) { case ACL_USER: + entry->e_id = cpu_to_le32( + from_kuid(&init_user_ns, acl_e->e_uid)); + e += sizeof(reiserfs_acl_entry); + break; case ACL_GROUP: - entry->e_id = cpu_to_le32(acl->a_entries[n].e_id); + entry->e_id = cpu_to_le32( + from_kgid(&init_user_ns, acl_e->e_gid)); e += sizeof(reiserfs_acl_entry); break; diff --git a/fs/seq_file.c b/fs/seq_file.c index 14cf9de1dbe1..99dffab4c4e4 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -9,6 +9,7 @@ #include <linux/export.h> #include <linux/seq_file.h> #include <linux/slab.h> +#include <linux/cred.h> #include <asm/uaccess.h> #include <asm/page.h> @@ -56,6 +57,9 @@ int seq_open(struct file *file, const struct seq_operations *op) memset(p, 0, sizeof(*p)); mutex_init(&p->lock); p->op = op; +#ifdef CONFIG_USER_NS + p->user_ns = file->f_cred->user_ns; +#endif /* * Wrappers around seq_open(e.g. swaps_open) need to be diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c index 81afbccfa843..a1ce5ce60632 100644 --- a/fs/squashfs/inode.c +++ b/fs/squashfs/inode.c @@ -56,16 +56,20 @@ static int squashfs_new_inode(struct super_block *sb, struct inode *inode, struct squashfs_base_inode *sqsh_ino) { + uid_t i_uid; + gid_t i_gid; int err; - err = squashfs_get_id(sb, le16_to_cpu(sqsh_ino->uid), &inode->i_uid); + err = squashfs_get_id(sb, le16_to_cpu(sqsh_ino->uid), &i_uid); if (err) return err; - err = squashfs_get_id(sb, le16_to_cpu(sqsh_ino->guid), &inode->i_gid); + err = squashfs_get_id(sb, le16_to_cpu(sqsh_ino->guid), &i_gid); if (err) return err; + i_uid_write(inode, i_uid); + i_gid_write(inode, i_gid); inode->i_ino = le32_to_cpu(sqsh_ino->inode_number); inode->i_mtime.tv_sec = le32_to_cpu(sqsh_ino->mtime); inode->i_atime.tv_sec = inode->i_mtime.tv_sec; diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index 80e1e2b18df1..b23ab736685d 100644 --- a/fs/sysv/inode.c +++ b/fs/sysv/inode.c @@ -202,8 +202,8 @@ struct inode *sysv_iget(struct super_block *sb, unsigned int ino) } /* SystemV FS: kludge permissions if ino==SYSV_ROOT_INO ?? */ inode->i_mode = fs16_to_cpu(sbi, raw_inode->i_mode); - inode->i_uid = (uid_t)fs16_to_cpu(sbi, raw_inode->i_uid); - inode->i_gid = (gid_t)fs16_to_cpu(sbi, raw_inode->i_gid); + i_uid_write(inode, (uid_t)fs16_to_cpu(sbi, raw_inode->i_uid)); + i_gid_write(inode, (gid_t)fs16_to_cpu(sbi, raw_inode->i_gid)); set_nlink(inode, fs16_to_cpu(sbi, raw_inode->i_nlink)); inode->i_size = fs32_to_cpu(sbi, raw_inode->i_size); inode->i_atime.tv_sec = fs32_to_cpu(sbi, raw_inode->i_atime); @@ -256,8 +256,8 @@ static int __sysv_write_inode(struct inode *inode, int wait) } raw_inode->i_mode = cpu_to_fs16(sbi, inode->i_mode); - raw_inode->i_uid = cpu_to_fs16(sbi, fs_high2lowuid(inode->i_uid)); - raw_inode->i_gid = cpu_to_fs16(sbi, fs_high2lowgid(inode->i_gid)); + raw_inode->i_uid = cpu_to_fs16(sbi, fs_high2lowuid(i_uid_read(inode))); + raw_inode->i_gid = cpu_to_fs16(sbi, fs_high2lowgid(i_gid_read(inode))); raw_inode->i_nlink = cpu_to_fs16(sbi, inode->i_nlink); raw_inode->i_size = cpu_to_fs32(sbi, inode->i_size); raw_inode->i_atime = cpu_to_fs32(sbi, inode->i_atime.tv_sec); diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c index bc4f94b28706..969489e478bc 100644 --- a/fs/ubifs/budget.c +++ b/fs/ubifs/budget.c @@ -272,8 +272,8 @@ long long ubifs_calc_available(const struct ubifs_info *c, int min_idx_lebs) */ static int can_use_rp(struct ubifs_info *c) { - if (current_fsuid() == c->rp_uid || capable(CAP_SYS_RESOURCE) || - (c->rp_gid != 0 && in_group_p(c->rp_gid))) + if (uid_eq(current_fsuid(), c->rp_uid) || capable(CAP_SYS_RESOURCE) || + (!gid_eq(c->rp_gid, GLOBAL_ROOT_GID) && in_group_p(c->rp_gid))) return 1; return 0; } diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index bb3167257aab..340d1afc1302 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -243,8 +243,8 @@ void ubifs_dump_inode(struct ubifs_info *c, const struct inode *inode) printk(KERN_ERR "\tsize %llu\n", (unsigned long long)i_size_read(inode)); printk(KERN_ERR "\tnlink %u\n", inode->i_nlink); - printk(KERN_ERR "\tuid %u\n", (unsigned int)inode->i_uid); - printk(KERN_ERR "\tgid %u\n", (unsigned int)inode->i_gid); + printk(KERN_ERR "\tuid %u\n", (unsigned int)i_uid_read(inode)); + printk(KERN_ERR "\tgid %u\n", (unsigned int)i_gid_read(inode)); printk(KERN_ERR "\tatime %u.%u\n", (unsigned int)inode->i_atime.tv_sec, (unsigned int)inode->i_atime.tv_nsec); diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index 12c0f154ca83..afaad07f3b29 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -469,8 +469,8 @@ static void pack_inode(struct ubifs_info *c, struct ubifs_ino_node *ino, ino->ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); ino->mtime_sec = cpu_to_le64(inode->i_mtime.tv_sec); ino->mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec); - ino->uid = cpu_to_le32(inode->i_uid); - ino->gid = cpu_to_le32(inode->i_gid); + ino->uid = cpu_to_le32(i_uid_read(inode)); + ino->gid = cpu_to_le32(i_gid_read(inode)); ino->mode = cpu_to_le32(inode->i_mode); ino->flags = cpu_to_le32(ui->flags); ino->size = cpu_to_le64(ui->ui_size); diff --git a/fs/ubifs/sb.c b/fs/ubifs/sb.c index 15e2fc5aa60b..52c21f4190f6 100644 --- a/fs/ubifs/sb.c +++ b/fs/ubifs/sb.c @@ -611,8 +611,8 @@ int ubifs_read_superblock(struct ubifs_info *c) c->fanout = le32_to_cpu(sup->fanout); c->lsave_cnt = le32_to_cpu(sup->lsave_cnt); c->rp_size = le64_to_cpu(sup->rp_size); - c->rp_uid = le32_to_cpu(sup->rp_uid); - c->rp_gid = le32_to_cpu(sup->rp_gid); + c->rp_uid = make_kuid(&init_user_ns, le32_to_cpu(sup->rp_uid)); + c->rp_gid = make_kgid(&init_user_ns, le32_to_cpu(sup->rp_gid)); sup_flags = le32_to_cpu(sup->flags); if (!c->mount_opts.override_compr) c->default_compr = le16_to_cpu(sup->default_compr); diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 71a197f0f93d..681f3a942444 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -130,8 +130,8 @@ struct inode *ubifs_iget(struct super_block *sb, unsigned long inum) inode->i_flags |= (S_NOCMTIME | S_NOATIME); set_nlink(inode, le32_to_cpu(ino->nlink)); - inode->i_uid = le32_to_cpu(ino->uid); - inode->i_gid = le32_to_cpu(ino->gid); + i_uid_write(inode, le32_to_cpu(ino->uid)); + i_gid_write(inode, le32_to_cpu(ino->gid)); inode->i_atime.tv_sec = (int64_t)le64_to_cpu(ino->atime_sec); inode->i_atime.tv_nsec = le32_to_cpu(ino->atime_nsec); inode->i_mtime.tv_sec = (int64_t)le64_to_cpu(ino->mtime_sec); diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h index 1e5a08623d11..64f2367c2f4c 100644 --- a/fs/ubifs/ubifs.h +++ b/fs/ubifs/ubifs.h @@ -1426,8 +1426,8 @@ struct ubifs_info { long long rp_size; long long report_rp_size; - uid_t rp_uid; - gid_t rp_gid; + kuid_t rp_uid; + kgid_t rp_gid; /* The below fields are used only during mounting and re-mounting */ unsigned int empty:1; diff --git a/fs/udf/inode.c b/fs/udf/inode.c index aa233469b3c1..287ef9f587b7 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1312,14 +1312,14 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) } read_lock(&sbi->s_cred_lock); - inode->i_uid = le32_to_cpu(fe->uid); - if (inode->i_uid == -1 || + i_uid_write(inode, le32_to_cpu(fe->uid)); + if (!uid_valid(inode->i_uid) || UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_IGNORE) || UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_SET)) inode->i_uid = UDF_SB(inode->i_sb)->s_uid; - inode->i_gid = le32_to_cpu(fe->gid); - if (inode->i_gid == -1 || + i_gid_write(inode, le32_to_cpu(fe->gid)); + if (!gid_valid(inode->i_gid) || UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_IGNORE) || UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_SET)) inode->i_gid = UDF_SB(inode->i_sb)->s_gid; @@ -1542,12 +1542,12 @@ static int udf_update_inode(struct inode *inode, int do_sync) if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_UID_FORGET)) fe->uid = cpu_to_le32(-1); else - fe->uid = cpu_to_le32(inode->i_uid); + fe->uid = cpu_to_le32(i_uid_read(inode)); if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_GID_FORGET)) fe->gid = cpu_to_le32(-1); else - fe->gid = cpu_to_le32(inode->i_gid); + fe->gid = cpu_to_le32(i_gid_read(inode)); udfperms = ((inode->i_mode & S_IRWXO)) | ((inode->i_mode & S_IRWXG) << 2) | diff --git a/fs/udf/super.c b/fs/udf/super.c index 18fc038a438d..862741dddf27 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -199,8 +199,8 @@ struct udf_options { unsigned int rootdir; unsigned int flags; umode_t umask; - gid_t gid; - uid_t uid; + kgid_t gid; + kuid_t uid; umode_t fmode; umode_t dmode; struct nls_table *nls_map; @@ -335,9 +335,9 @@ static int udf_show_options(struct seq_file *seq, struct dentry *root) if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_IGNORE)) seq_puts(seq, ",gid=ignore"); if (UDF_QUERY_FLAG(sb, UDF_FLAG_UID_SET)) - seq_printf(seq, ",uid=%u", sbi->s_uid); + seq_printf(seq, ",uid=%u", from_kuid(&init_user_ns, sbi->s_uid)); if (UDF_QUERY_FLAG(sb, UDF_FLAG_GID_SET)) - seq_printf(seq, ",gid=%u", sbi->s_gid); + seq_printf(seq, ",gid=%u", from_kgid(&init_user_ns, sbi->s_gid)); if (sbi->s_umask != 0) seq_printf(seq, ",umask=%ho", sbi->s_umask); if (sbi->s_fmode != UDF_INVALID_MODE) @@ -516,13 +516,17 @@ static int udf_parse_options(char *options, struct udf_options *uopt, case Opt_gid: if (match_int(args, &option)) return 0; - uopt->gid = option; + uopt->gid = make_kgid(current_user_ns(), option); + if (!gid_valid(uopt->gid)) + return 0; uopt->flags |= (1 << UDF_FLAG_GID_SET); break; case Opt_uid: if (match_int(args, &option)) return 0; - uopt->uid = option; + uopt->uid = make_kuid(current_user_ns(), option); + if (!uid_valid(uopt->uid)) + return 0; uopt->flags |= (1 << UDF_FLAG_UID_SET); break; case Opt_umask: @@ -1934,8 +1938,8 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) struct udf_sb_info *sbi; uopt.flags = (1 << UDF_FLAG_USE_AD_IN_ICB) | (1 << UDF_FLAG_STRICT); - uopt.uid = -1; - uopt.gid = -1; + uopt.uid = INVALID_UID; + uopt.gid = INVALID_GID; uopt.umask = 0; uopt.fmode = UDF_INVALID_MODE; uopt.dmode = UDF_INVALID_MODE; diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h index 42ad69ac9576..5f027227f085 100644 --- a/fs/udf/udf_sb.h +++ b/fs/udf/udf_sb.h @@ -128,8 +128,8 @@ struct udf_sb_info { /* Default permissions */ umode_t s_umask; - gid_t s_gid; - uid_t s_uid; + kgid_t s_gid; + kuid_t s_uid; umode_t s_fmode; umode_t s_dmode; /* Lock protecting consistency of above permission settings */ diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c index dd7c89d8a1c1..eb6d0b7dc879 100644 --- a/fs/ufs/inode.c +++ b/fs/ufs/inode.c @@ -597,8 +597,8 @@ static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode) /* * Linux now has 32-bit uid and gid, so we can support EFT. */ - inode->i_uid = ufs_get_inode_uid(sb, ufs_inode); - inode->i_gid = ufs_get_inode_gid(sb, ufs_inode); + i_uid_write(inode, ufs_get_inode_uid(sb, ufs_inode)); + i_gid_write(inode, ufs_get_inode_gid(sb, ufs_inode)); inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size); inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec); @@ -645,8 +645,8 @@ static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode) /* * Linux now has 32-bit uid and gid, so we can support EFT. */ - inode->i_uid = fs32_to_cpu(sb, ufs2_inode->ui_uid); - inode->i_gid = fs32_to_cpu(sb, ufs2_inode->ui_gid); + i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid)); + i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid)); inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size); inode->i_atime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_atime); @@ -745,8 +745,8 @@ static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode) ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode); ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink); - ufs_set_inode_uid(sb, ufs_inode, inode->i_uid); - ufs_set_inode_gid(sb, ufs_inode, inode->i_gid); + ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode)); + ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode)); ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size); ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec); @@ -789,8 +789,8 @@ static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode) ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode); ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink); - ufs_inode->ui_uid = cpu_to_fs32(sb, inode->i_uid); - ufs_inode->ui_gid = cpu_to_fs32(sb, inode->i_gid); + ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode)); + ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode)); ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size); ufs_inode->ui_atime = cpu_to_fs64(sb, inode->i_atime.tv_sec); diff --git a/fs/xattr.c b/fs/xattr.c index 014f11321fd9..f7f7f09b0b41 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -20,6 +20,7 @@ #include <linux/fsnotify.h> #include <linux/audit.h> #include <linux/vmalloc.h> +#include <linux/posix_acl_xattr.h> #include <asm/uaccess.h> @@ -347,6 +348,9 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value, error = -EFAULT; goto out; } + if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || + (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) + posix_acl_fix_xattr_from_user(kvalue, size); } error = vfs_setxattr(d, kname, kvalue, size, flags); @@ -450,6 +454,9 @@ getxattr(struct dentry *d, const char __user *name, void __user *value, error = vfs_getxattr(d, kname, kvalue, size); if (error > 0) { + if ((strcmp(kname, XATTR_NAME_POSIX_ACL_ACCESS) == 0) || + (strcmp(kname, XATTR_NAME_POSIX_ACL_DEFAULT) == 0)) + posix_acl_fix_xattr_to_user(kvalue, size); if (size && copy_to_user(value, kvalue, error)) error = -EFAULT; } else if (error == -ERANGE && size >= XATTR_SIZE_MAX) { diff --git a/fs/xattr_acl.c b/fs/xattr_acl.c index 69d06b07b169..11efd830b5f5 100644 --- a/fs/xattr_acl.c +++ b/fs/xattr_acl.c @@ -9,13 +9,72 @@ #include <linux/fs.h> #include <linux/posix_acl_xattr.h> #include <linux/gfp.h> +#include <linux/user_namespace.h> +/* + * Fix up the uids and gids in posix acl extended attributes in place. + */ +static void posix_acl_fix_xattr_userns( + struct user_namespace *to, struct user_namespace *from, + void *value, size_t size) +{ + posix_acl_xattr_header *header = (posix_acl_xattr_header *)value; + posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end; + int count; + kuid_t uid; + kgid_t gid; + + if (!value) + return; + if (size < sizeof(posix_acl_xattr_header)) + return; + if (header->a_version != cpu_to_le32(POSIX_ACL_XATTR_VERSION)) + return; + + count = posix_acl_xattr_count(size); + if (count < 0) + return; + if (count == 0) + return; + + for (end = entry + count; entry != end; entry++) { + switch(le16_to_cpu(entry->e_tag)) { + case ACL_USER: + uid = make_kuid(from, le32_to_cpu(entry->e_id)); + entry->e_id = cpu_to_le32(from_kuid(to, uid)); + break; + case ACL_GROUP: + gid = make_kgid(from, le32_to_cpu(entry->e_id)); + entry->e_id = cpu_to_le32(from_kuid(to, uid)); + break; + default: + break; + } + } +} + +void posix_acl_fix_xattr_from_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + if (user_ns == &init_user_ns) + return; + posix_acl_fix_xattr_userns(&init_user_ns, user_ns, value, size); +} + +void posix_acl_fix_xattr_to_user(void *value, size_t size) +{ + struct user_namespace *user_ns = current_user_ns(); + if (user_ns == &init_user_ns) + return; + posix_acl_fix_xattr_userns(user_ns, &init_user_ns, value, size); +} /* * Convert from extended attribute to in-memory representation. */ struct posix_acl * -posix_acl_from_xattr(const void *value, size_t size) +posix_acl_from_xattr(struct user_namespace *user_ns, + const void *value, size_t size) { posix_acl_xattr_header *header = (posix_acl_xattr_header *)value; posix_acl_xattr_entry *entry = (posix_acl_xattr_entry *)(header+1), *end; @@ -50,12 +109,21 @@ posix_acl_from_xattr(const void *value, size_t size) case ACL_GROUP_OBJ: case ACL_MASK: case ACL_OTHER: - acl_e->e_id = ACL_UNDEFINED_ID; break; case ACL_USER: + acl_e->e_uid = + make_kuid(user_ns, + le32_to_cpu(entry->e_id)); + if (!uid_valid(acl_e->e_uid)) + goto fail; + break; case ACL_GROUP: - acl_e->e_id = le32_to_cpu(entry->e_id); + acl_e->e_gid = + make_kgid(user_ns, + le32_to_cpu(entry->e_id)); + if (!gid_valid(acl_e->e_gid)) + goto fail; break; default: @@ -74,7 +142,8 @@ EXPORT_SYMBOL (posix_acl_from_xattr); * Convert from in-memory to extended attribute representation. */ int -posix_acl_to_xattr(const struct posix_acl *acl, void *buffer, size_t size) +posix_acl_to_xattr(struct user_namespace *user_ns, const struct posix_acl *acl, + void *buffer, size_t size) { posix_acl_xattr_header *ext_acl = (posix_acl_xattr_header *)buffer; posix_acl_xattr_entry *ext_entry = ext_acl->a_entries; @@ -89,9 +158,22 @@ posix_acl_to_xattr(const struct posix_acl *acl, void *buffer, size_t size) ext_acl->a_version = cpu_to_le32(POSIX_ACL_XATTR_VERSION); for (n=0; n < acl->a_count; n++, ext_entry++) { - ext_entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag); - ext_entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm); - ext_entry->e_id = cpu_to_le32(acl->a_entries[n].e_id); + const struct posix_acl_entry *acl_e = &acl->a_entries[n]; + ext_entry->e_tag = cpu_to_le16(acl_e->e_tag); + ext_entry->e_perm = cpu_to_le16(acl_e->e_perm); + switch(acl_e->e_tag) { + case ACL_USER: + ext_entry->e_id = + cpu_to_le32(from_kuid(user_ns, acl_e->e_uid)); + break; + case ACL_GROUP: + ext_entry->e_id = + cpu_to_le32(from_kgid(user_ns, acl_e->e_gid)); + break; + default: + ext_entry->e_id = cpu_to_le32(ACL_UNDEFINED_ID); + break; + } } return real_size; } diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index ac702a6eab9b..1d32f1d52763 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -337,7 +337,7 @@ xfs_xattr_acl_get(struct dentry *dentry, const char *name, if (acl == NULL) return -ENODATA; - error = posix_acl_to_xattr(acl, value, size); + error = posix_acl_to_xattr(&init_user_ns, acl, value, size); posix_acl_release(acl); return error; @@ -361,7 +361,7 @@ xfs_xattr_acl_set(struct dentry *dentry, const char *name, if (!value) goto set_acl; - acl = posix_acl_from_xattr(value, size); + acl = posix_acl_from_xattr(&init_user_ns, value, size); if (!acl) { /* * acl_set_file(3) may request that we set default ACLs with diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c index fed504fc2999..71926d630527 100644 --- a/fs/xfs/xfs_quotaops.c +++ b/fs/xfs/xfs_quotaops.c @@ -97,8 +97,7 @@ xfs_fs_set_xstate( STATIC int xfs_fs_get_dqblk( struct super_block *sb, - int type, - qid_t id, + struct kqid qid, struct fs_disk_quota *fdq) { struct xfs_mount *mp = XFS_M(sb); @@ -108,14 +107,14 @@ xfs_fs_get_dqblk( if (!XFS_IS_QUOTA_ON(mp)) return -ESRCH; - return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq); + return -xfs_qm_scall_getquota(mp, from_kqid(&init_user_ns, qid), + xfs_quota_type(qid.type), fdq); } STATIC int xfs_fs_set_dqblk( struct super_block *sb, - int type, - qid_t id, + struct kqid qid, struct fs_disk_quota *fdq) { struct xfs_mount *mp = XFS_M(sb); @@ -127,7 +126,8 @@ xfs_fs_set_dqblk( if (!XFS_IS_QUOTA_ON(mp)) return -ESRCH; - return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq); + return -xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid), + xfs_quota_type(qid.type), fdq); } const struct quotactl_ops xfs_quotactl_operations = { diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c index bcb60542fcf1..0c7fa54f309e 100644 --- a/fs/xfs/xfs_trans_dquot.c +++ b/fs/xfs/xfs_trans_dquot.c @@ -578,9 +578,11 @@ xfs_quota_warn( /* no warnings for project quotas - we just return ENOSPC later */ if (dqp->dq_flags & XFS_DQ_PROJ) return; - quota_send_warning((dqp->dq_flags & XFS_DQ_USER) ? USRQUOTA : GRPQUOTA, - be32_to_cpu(dqp->q_core.d_id), mp->m_super->s_dev, - type); + quota_send_warning(make_kqid(&init_user_ns, + (dqp->dq_flags & XFS_DQ_USER) ? + USRQUOTA : GRPQUOTA, + be32_to_cpu(dqp->q_core.d_id)), + mp->m_super->s_dev, type); } /* |
