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userns: Convert reiserfs to use kuid and kgid where appropriate

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Cc: reiserfs-devel@vger.kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2012-02-07 16:30:06 -08:00
parent c18cdc1a3e
commit df814654f3
3 changed files with 30 additions and 17 deletions
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26
fs/reiserfs/inode.c
View File

@ -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 *

20
fs/reiserfs/xattr_acl.c
View File

@ -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;

1
init/Kconfig
View File

@ -939,7 +939,6 @@ config UIDGID_CONVERTED
depends on NFSD = n
depends on NFS_FS = n
depends on OCFS2_FS = n
depends on REISERFS_FS = n
depends on SQUASHFS = n
depends on UBIFS_FS = n
depends on UDF_FS = n