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nfsd: Convert nfs3xdr to use kuids and kgids

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When reading uids and gids off the wire convert them to kuids and
kgids.

When putting kuids and kgids onto the wire first convert them to uids
and gids the other side will understand.

Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman
2013-02-02 04:16:08 -08:00
parent e097258f2e
commit 458878a705
1 changed files with 8 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/nfsd/nfs3xdr.c
+8 -6
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@@ -105,12 +105,14 @@ decode_sattr3(__be32 *p, struct iattr *iap)
iap->ia_mode = ntohl(*p++);
}
if (*p++) {
iap->ia_valid |= ATTR_UID;
iap->ia_uid = ntohl(*p++);
iap->ia_uid = make_kuid(&init_user_ns, ntohl(*p++));
if (uid_valid(iap->ia_uid))
iap->ia_valid |= ATTR_UID;
}
if (*p++) {
iap->ia_valid |= ATTR_GID;
iap->ia_gid = ntohl(*p++);
iap->ia_gid = make_kgid(&init_user_ns, ntohl(*p++));
if (gid_valid(iap->ia_gid))
iap->ia_valid |= ATTR_GID;
}
if (*p++) {
u64 newsize;
@@ -167,8 +169,8 @@ encode_fattr3(struct svc_rqst *rqstp, __be32 *p, struct svc_fh *fhp,
*p++ = htonl(nfs3_ftypes[(stat->mode & S_IFMT) >> 12]);
*p++ = htonl((u32) stat->mode);
*p++ = htonl((u32) stat->nlink);
*p++ = htonl((u32) stat->uid);
*p++ = htonl((u32) stat->gid);
*p++ = htonl((u32) from_kuid(&init_user_ns, stat->uid));
*p++ = htonl((u32) from_kgid(&init_user_ns, stat->gid));
if (S_ISLNK(stat->mode) && stat->size > NFS3_MAXPATHLEN) {
p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
} else {