diff options
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 54 |
1 files changed, 35 insertions, 19 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 17e70dabe21c..8ca6d17f6cf3 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -293,13 +293,13 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, ace->whotype = nfs4_acl_get_whotype(buf, dummy32); status = nfs_ok; if (ace->whotype != NFS4_ACL_WHO_NAMED) - ace->who = 0; + ; else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP) status = nfsd_map_name_to_gid(argp->rqstp, - buf, dummy32, &ace->who); + buf, dummy32, &ace->who_gid); else status = nfsd_map_name_to_uid(argp->rqstp, - buf, dummy32, &ace->who); + buf, dummy32, &ace->who_uid); if (status) return status; } @@ -464,9 +464,16 @@ static __be32 nfsd4_decode_cb_sec(struct nfsd4_compoundargs *argp, struct nfsd4_ READ32(dummy); READ_BUF(dummy * 4); if (cbs->flavor == (u32)(-1)) { - cbs->uid = uid; - cbs->gid = gid; - cbs->flavor = RPC_AUTH_UNIX; + kuid_t kuid = make_kuid(&init_user_ns, uid); + kgid_t kgid = make_kgid(&init_user_ns, gid); + if (uid_valid(kuid) && gid_valid(kgid)) { + cbs->uid = kuid; + cbs->gid = kgid; + cbs->flavor = RPC_AUTH_UNIX; + } else { + dprintk("RPC_AUTH_UNIX with invalid" + "uid or gid ignoring!\n"); + } } break; case RPC_AUTH_GSS: @@ -1926,7 +1933,7 @@ static u32 nfs4_file_type(umode_t mode) } static __be32 -nfsd4_encode_name(struct svc_rqst *rqstp, int whotype, uid_t id, int group, +nfsd4_encode_name(struct svc_rqst *rqstp, int whotype, kuid_t uid, kgid_t gid, __be32 **p, int *buflen) { int status; @@ -1935,10 +1942,10 @@ nfsd4_encode_name(struct svc_rqst *rqstp, int whotype, uid_t id, int group, return nfserr_resource; if (whotype != NFS4_ACL_WHO_NAMED) status = nfs4_acl_write_who(whotype, (u8 *)(*p + 1)); - else if (group) - status = nfsd_map_gid_to_name(rqstp, id, (u8 *)(*p + 1)); + else if (gid_valid(gid)) + status = nfsd_map_gid_to_name(rqstp, gid, (u8 *)(*p + 1)); else - status = nfsd_map_uid_to_name(rqstp, id, (u8 *)(*p + 1)); + status = nfsd_map_uid_to_name(rqstp, uid, (u8 *)(*p + 1)); if (status < 0) return nfserrno(status); *p = xdr_encode_opaque(*p, NULL, status); @@ -1948,22 +1955,33 @@ nfsd4_encode_name(struct svc_rqst *rqstp, int whotype, uid_t id, int group, } static inline __be32 -nfsd4_encode_user(struct svc_rqst *rqstp, uid_t uid, __be32 **p, int *buflen) +nfsd4_encode_user(struct svc_rqst *rqstp, kuid_t user, __be32 **p, int *buflen) { - return nfsd4_encode_name(rqstp, NFS4_ACL_WHO_NAMED, uid, 0, p, buflen); + return nfsd4_encode_name(rqstp, NFS4_ACL_WHO_NAMED, user, INVALID_GID, + p, buflen); } static inline __be32 -nfsd4_encode_group(struct svc_rqst *rqstp, uid_t gid, __be32 **p, int *buflen) +nfsd4_encode_group(struct svc_rqst *rqstp, kgid_t group, __be32 **p, int *buflen) { - return nfsd4_encode_name(rqstp, NFS4_ACL_WHO_NAMED, gid, 1, p, buflen); + return nfsd4_encode_name(rqstp, NFS4_ACL_WHO_NAMED, INVALID_UID, group, + p, buflen); } static inline __be32 -nfsd4_encode_aclname(struct svc_rqst *rqstp, int whotype, uid_t id, int group, +nfsd4_encode_aclname(struct svc_rqst *rqstp, struct nfs4_ace *ace, __be32 **p, int *buflen) { - return nfsd4_encode_name(rqstp, whotype, id, group, p, buflen); + kuid_t uid = INVALID_UID; + kgid_t gid = INVALID_GID; + + if (ace->whotype == NFS4_ACL_WHO_NAMED) { + if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP) + gid = ace->who_gid; + else + uid = ace->who_uid; + } + return nfsd4_encode_name(rqstp, ace->whotype, uid, gid, p, buflen); } #define WORD0_ABSENT_FS_ATTRS (FATTR4_WORD0_FS_LOCATIONS | FATTR4_WORD0_FSID | \ @@ -2224,9 +2242,7 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp, WRITE32(ace->type); WRITE32(ace->flag); WRITE32(ace->access_mask & NFS4_ACE_MASK_ALL); - status = nfsd4_encode_aclname(rqstp, ace->whotype, - ace->who, ace->flag & NFS4_ACE_IDENTIFIER_GROUP, - &p, &buflen); + status = nfsd4_encode_aclname(rqstp, ace, &p, &buflen); if (status == nfserr_resource) goto out_resource; if (status) |