diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-02-07 15:58:38 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-09-21 03:13:07 -0700 |
| commit | c010d1ff4f69c9f4aa331dfd8266262fb1b478ce (patch) | |
| tree | 8930c8f28fa0b3cd07d10a8321015b7760abea57 /fs/adfs/super.c | |
| parent | 9a11f4513c2e308e0025a55b465d377438606445 (diff) | |
userns: Convert adfs to use kuid and kgid where appropriate
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/adfs/super.c')
| -rw-r--r-- | fs/adfs/super.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/fs/adfs/super.c b/fs/adfs/super.c index bdaec92353c..22a0d7ed5fa 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; |