diff options
Diffstat (limited to 'fs/afs')
| -rw-r--r-- | fs/afs/afs.h | 11 | ||||
| -rw-r--r-- | fs/afs/fsclient.c | 14 | ||||
| -rw-r--r-- | fs/afs/inode.c | 6 | ||||
| -rw-r--r-- | fs/afs/super.c | 6 |
4 files changed, 21 insertions, 16 deletions
diff --git a/fs/afs/afs.h b/fs/afs/afs.h index c548aa346f0d..3c462ff6db63 100644 --- a/fs/afs/afs.h +++ b/fs/afs/afs.h @@ -119,8 +119,8 @@ struct afs_file_status { u64 size; /* file size */ afs_dataversion_t data_version; /* current data version */ u32 author; /* author ID */ - u32 owner; /* owner ID */ - u32 group; /* group ID */ + kuid_t owner; /* owner ID */ + kgid_t group; /* group ID */ afs_access_t caller_access; /* access rights for authenticated caller */ afs_access_t anon_access; /* access rights for unauthenticated caller */ umode_t mode; /* UNIX mode */ @@ -133,13 +133,6 @@ struct afs_file_status { /* * AFS file status change request */ -struct afs_store_status { - u32 mask; /* which bits of the struct are set */ - u32 mtime_client; /* last time client changed data */ - u32 owner; /* owner ID */ - u32 group; /* group ID */ - umode_t mode; /* UNIX mode */ -}; #define AFS_SET_MTIME 0x01 /* set the mtime */ #define AFS_SET_OWNER 0x02 /* set the owner ID */ diff --git a/fs/afs/fsclient.c b/fs/afs/fsclient.c index b960ff05ea0b..c2e930ec2888 100644 --- a/fs/afs/fsclient.c +++ b/fs/afs/fsclient.c @@ -42,6 +42,8 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp, umode_t mode; u64 data_version, size; u32 changed = 0; /* becomes non-zero if ctime-type changes seen */ + kuid_t owner; + kgid_t group; #define EXTRACT(DST) \ do { \ @@ -56,7 +58,9 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp, size = ntohl(*bp++); data_version = ntohl(*bp++); EXTRACT(status->author); - EXTRACT(status->owner); + owner = make_kuid(&init_user_ns, ntohl(*bp++)); + changed |= !uid_eq(owner, status->owner); + status->owner = owner; EXTRACT(status->caller_access); /* call ticket dependent */ EXTRACT(status->anon_access); EXTRACT(status->mode); @@ -65,7 +69,9 @@ static void xdr_decode_AFSFetchStatus(const __be32 **_bp, bp++; /* seg size */ status->mtime_client = ntohl(*bp++); status->mtime_server = ntohl(*bp++); - EXTRACT(status->group); + group = make_kgid(&init_user_ns, ntohl(*bp++)); + changed |= !gid_eq(group, status->group); + status->group = group; bp++; /* sync counter */ data_version |= (u64) ntohl(*bp++) << 32; EXTRACT(status->lock_count); @@ -181,12 +187,12 @@ static void xdr_encode_AFS_StoreStatus(__be32 **_bp, struct iattr *attr) if (attr->ia_valid & ATTR_UID) { mask |= AFS_SET_OWNER; - owner = attr->ia_uid; + owner = from_kuid(&init_user_ns, attr->ia_uid); } if (attr->ia_valid & ATTR_GID) { mask |= AFS_SET_GROUP; - group = attr->ia_gid; + group = from_kgid(&init_user_ns, attr->ia_gid); } if (attr->ia_valid & ATTR_MODE) { diff --git a/fs/afs/inode.c b/fs/afs/inode.c index 95cffd38239f..789bc253b5f6 100644 --- a/fs/afs/inode.c +++ b/fs/afs/inode.c @@ -69,7 +69,7 @@ static int afs_inode_map_status(struct afs_vnode *vnode, struct key *key) set_nlink(inode, vnode->status.nlink); inode->i_uid = vnode->status.owner; - inode->i_gid = 0; + inode->i_gid = GLOBAL_ROOT_GID; inode->i_size = vnode->status.size; inode->i_ctime.tv_sec = vnode->status.mtime_server; inode->i_ctime.tv_nsec = 0; @@ -175,8 +175,8 @@ struct inode *afs_iget_autocell(struct inode *dir, const char *dev_name, inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO; inode->i_op = &afs_autocell_inode_operations; set_nlink(inode, 2); - inode->i_uid = 0; - inode->i_gid = 0; + inode->i_uid = GLOBAL_ROOT_UID; + inode->i_gid = GLOBAL_ROOT_GID; inode->i_ctime.tv_sec = get_seconds(); inode->i_ctime.tv_nsec = 0; inode->i_atime = inode->i_mtime = inode->i_ctime; diff --git a/fs/afs/super.c b/fs/afs/super.c index 43165009428d..7c31ec399575 100644 --- a/fs/afs/super.c +++ b/fs/afs/super.c @@ -24,6 +24,8 @@ #include <linux/parser.h> #include <linux/statfs.h> #include <linux/sched.h> +#include <linux/nsproxy.h> +#include <net/net_namespace.h> #include "internal.h" #define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */ @@ -363,6 +365,10 @@ static struct dentry *afs_mount(struct file_system_type *fs_type, memset(¶ms, 0, sizeof(params)); + ret = -EINVAL; + if (current->nsproxy->net_ns != &init_net) + goto error; + /* parse the options and device name */ if (options) { ret = afs_parse_options(¶ms, options, &dev_name); |