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NFSD: Add nfsd4_encode_nfsace4()

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Refactor the ACE encoding helper so that it can eventually be reused
for encoding OPEN results that contain delegation ACEs.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever 2023-09-18 09:58:30 -04:00
parent 6515b7d71d
commit 0207ee0818
2 changed files with 24 additions and 15 deletions
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36
fs/nfsd/nfs4xdr.c
View File

@ -2783,16 +2783,29 @@ static __be32 nfsd4_encode_fs_locations(struct xdr_stream *xdr,
return 0;
}
static inline __be32
nfsd4_encode_aclname(struct xdr_stream *xdr, struct svc_rqst *rqstp,
struct nfs4_ace *ace)
static __be32 nfsd4_encode_nfsace4(struct xdr_stream *xdr, struct svc_rqst *rqstp,
struct nfs4_ace *ace)
{
__be32 status;
/* type */
status = nfsd4_encode_acetype4(xdr, ace->type);
if (status != nfs_ok)
return nfserr_resource;
/* flag */
status = nfsd4_encode_aceflag4(xdr, ace->flag);
if (status != nfs_ok)
return nfserr_resource;
/* access mask */
status = nfsd4_encode_acemask4(xdr, ace->access_mask & NFS4_ACE_MASK_ALL);
if (status != nfs_ok)
return nfserr_resource;
/* who */
if (ace->whotype != NFS4_ACL_WHO_NAMED)
return nfs4_acl_write_who(xdr, ace->whotype);
else if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
if (ace->flag & NFS4_ACE_IDENTIFIER_GROUP)
return nfsd4_encode_group(xdr, rqstp, ace->who_gid);
else
return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
return nfsd4_encode_user(xdr, rqstp, ace->who_uid);
}
static inline __be32
@ -3294,15 +3307,8 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
*p++ = cpu_to_be32(args.acl->naces);
for (ace = args.acl->aces; ace < args.acl->aces + args.acl->naces; ace++) {
p = xdr_reserve_space(xdr, 4*3);
if (!p)
goto out_resource;
*p++ = cpu_to_be32(ace->type);
*p++ = cpu_to_be32(ace->flag);
*p++ = cpu_to_be32(ace->access_mask &
NFS4_ACE_MASK_ALL);
status = nfsd4_encode_aclname(xdr, rqstp, ace);
if (status)
status = nfsd4_encode_nfsace4(xdr, args.rqstp, ace);
if (status != nfs_ok)
goto out;
}
}

3
fs/nfsd/xdr4.h
View File

@ -90,6 +90,9 @@ nfsd4_encode_uint32_t(struct xdr_stream *xdr, u32 val)
return nfs_ok;
}
#define nfsd4_encode_aceflag4(x, v) nfsd4_encode_uint32_t(x, v)
#define nfsd4_encode_acemask4(x, v) nfsd4_encode_uint32_t(x, v)
#define nfsd4_encode_acetype4(x, v) nfsd4_encode_uint32_t(x, v)
#define nfsd4_encode_nfs_lease4(x, v) nfsd4_encode_uint32_t(x, v)
/**