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authorJ. Bruce Fields <bfields@citi.umich.edu>2005-06-22 17:16:22 +0000
committerTrond Myklebust <Trond.Myklebust@netapp.com>2005-06-22 16:07:13 -0400
commit23ec6965c20db96bc8ea7af0ec178f074dd31c40 (patch)
tree0d94c6a7662afe088252050a0778cd52e096ba95 /fs
parentaa1870af92d8f6d6db0883696516a83ff2b695a6 (diff)
downloadlinux-23ec6965c20db96bc8ea7af0ec178f074dd31c40.tar.bz2
[PATCH] NFSv4: Client-side xdr for writing NFSv4 acls
Client-side support for NFSv4 acls: xdr encoding and decoding routines for writing acls Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/nfs4xdr.c71
1 files changed, 70 insertions, 1 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6f1c003ee33a..325cd6d4f23a 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -372,6 +372,13 @@ static int nfs_stat_to_errno(int);
decode_putfh_maxsz + \
op_decode_hdr_maxsz + \
nfs4_fattr_bitmap_maxsz + 1)
+#define NFS4_enc_setacl_sz (compound_encode_hdr_maxsz + \
+ encode_putfh_maxsz + \
+ op_encode_hdr_maxsz + 4 + \
+ nfs4_fattr_bitmap_maxsz + 1)
+#define NFS4_dec_setacl_sz (compound_decode_hdr_maxsz + \
+ decode_putfh_maxsz + \
+ op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz)
static struct {
unsigned int mode;
@@ -471,7 +478,7 @@ static int encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const s
* In the worst-case, this would be
* 12(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
* = 36 bytes, plus any contribution from variable-length fields
- * such as owner/group/acl's.
+ * such as owner/group.
*/
len = 16;
@@ -1096,6 +1103,25 @@ static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client
}
static int
+encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
+{
+ uint32_t *p;
+
+ RESERVE_SPACE(4+sizeof(zero_stateid.data));
+ WRITE32(OP_SETATTR);
+ WRITEMEM(zero_stateid.data, sizeof(zero_stateid.data));
+ RESERVE_SPACE(2*4);
+ WRITE32(1);
+ WRITE32(FATTR4_WORD0_ACL);
+ if (arg->acl_len % 4)
+ return -EINVAL;
+ RESERVE_SPACE(4);
+ WRITE32(arg->acl_len);
+ xdr_write_pages(xdr, arg->acl_pages, arg->acl_pgbase, arg->acl_len);
+ return 0;
+}
+
+static int
encode_savefh(struct xdr_stream *xdr)
{
uint32_t *p;
@@ -3492,6 +3518,48 @@ out:
}
+/*
+ * Encode an SETACL request
+ */
+static int
+nfs4_xdr_enc_setacl(struct rpc_rqst *req, uint32_t *p, struct nfs_setaclargs *args)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr = {
+ .nops = 2,
+ };
+ int status;
+
+ xdr_init_encode(&xdr, &req->rq_snd_buf, p);
+ encode_compound_hdr(&xdr, &hdr);
+ status = encode_putfh(&xdr, args->fh);
+ if (status)
+ goto out;
+ status = encode_setacl(&xdr, args);
+out:
+ return status;
+}
+/*
+ * Decode SETACL response
+ */
+static int
+nfs4_xdr_dec_setacl(struct rpc_rqst *rqstp, uint32_t *p, void *res)
+{
+ struct xdr_stream xdr;
+ struct compound_hdr hdr;
+ int status;
+
+ xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
+ status = decode_compound_hdr(&xdr, &hdr);
+ if (status)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status)
+ goto out;
+ status = decode_setattr(&xdr, res);
+out:
+ return status;
+}
/*
* Decode GETACL response
@@ -4117,6 +4185,7 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC(SERVER_CAPS, enc_server_caps, dec_server_caps),
PROC(DELEGRETURN, enc_delegreturn, dec_delegreturn),
PROC(GETACL, enc_getacl, dec_getacl),
+ PROC(SETACL, enc_setacl, dec_setacl),
};
struct rpc_version nfs_version4 = {