commit 58cd57bfd9db3bc213bf9d6a10920f82095f0114
"nfsd: Fix SP4_MACH_CRED negotiation in EXCHANGE_ID"
miss calculating the length of bitmap for spo_must_enforce and spo_must_allow.
Signed-off-by: Kinglong Mee <kinglongmee@xxxxxxxxx>
---
fs/nfsd/nfs4proc.c | 3 ++-
fs/nfsd/nfs4xdr.c | 24 ++++++++++++++++--------
2 files changed, 18 insertions(+), 9 deletions(-)
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 419572f..7bac4bd 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1524,7 +1524,8 @@ static inline u32 nfsd4_write_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
static inline u32 nfsd4_exchange_id_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op)
{
return (op_encode_hdr_size + 2 + 1 + /* eir_clientid, eir_sequenceid */\
- 1 + 1 + 2 + /* eir_flags, spr_how, spo_must_enforce & _allow */\
+ 1 + 1 + /* eir_flags, spr_how */\
+ 4 + /* spo_must_enforce & _allow with bitmap */\
2 + /*eir_server_owner.so_minor_id */\
/* eir_server_owner.so_major_id<> */\
XDR_QUADLEN(NFS4_OPAQUE_LIMIT) + 1 +\
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index a57e67d..817c99f 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3368,35 +3368,43 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
8 /* eir_clientid */ +
4 /* eir_sequenceid */ +
4 /* eir_flags */ +
- 4 /* spr_how */ +
- 8 /* spo_must_enforce, spo_must_allow */ +
- 8 /* so_minor_id */ +
- 4 /* so_major_id.len */ +
- (XDR_QUADLEN(major_id_sz) * 4) +
- 4 /* eir_server_scope.len */ +
- (XDR_QUADLEN(server_scope_sz) * 4) +
- 4 /* eir_server_impl_id.count (0) */);
+ 4 /* spr_how */);
WRITEMEM(&exid->clientid, 8);
WRITE32(exid->seqid);
WRITE32(exid->flags);
WRITE32(exid->spa_how);
+ ADJUST_ARGS();
+
switch (exid->spa_how) {
case SP4_NONE:
break;
case SP4_MACH_CRED:
+ /* spo_must_enforce, spo_must_allow */
+ RESERVE_SPACE(16);
+
/* spo_must_enforce bitmap: */
WRITE32(2);
WRITE32(nfs4_minimal_spo_must_enforce[0]);
WRITE32(nfs4_minimal_spo_must_enforce[1]);
/* empty spo_must_allow bitmap: */
WRITE32(0);
+
+ ADJUST_ARGS();
break;
default:
WARN_ON_ONCE(1);
}
+ RESERVE_SPACE(
+ 8 /* so_minor_id */ +
+ 4 /* so_major_id.len */ +
+ (XDR_QUADLEN(major_id_sz) * 4) +
+ 4 /* eir_server_scope.len */ +
+ (XDR_QUADLEN(server_scope_sz) * 4) +
+ 4 /* eir_server_impl_id.count (0) */);
+
/* The server_owner struct */
WRITE64(minor_id); /* Minor id */
/* major id */
--
1.8.4.2
--
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