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path: root/fs/nfsd/nfs4callback.c
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Diffstat (limited to 'fs/nfsd/nfs4callback.c')
-rw-r--r--fs/nfsd/nfs4callback.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index eb78109d666c..0274db6e65d0 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -303,6 +303,7 @@ static int decode_cb_compound4res(struct xdr_stream *xdr,
p = xdr_inline_decode(xdr, length + 4);
if (unlikely(p == NULL))
goto out_overflow;
+ p += XDR_QUADLEN(length);
hdr->nops = be32_to_cpup(p);
return 0;
out_overflow:
@@ -396,13 +397,10 @@ static int decode_cb_sequence4resok(struct xdr_stream *xdr,
struct nfsd4_callback *cb)
{
struct nfsd4_session *session = cb->cb_clp->cl_cb_session;
- struct nfs4_sessionid id;
- int status;
+ int status = -ESERVERFAULT;
__be32 *p;
u32 dummy;
- status = -ESERVERFAULT;
-
/*
* If the server returns different values for sessionID, slotID or
* sequence number, the server is looney tunes.
@@ -410,9 +408,8 @@ static int decode_cb_sequence4resok(struct xdr_stream *xdr,
p = xdr_inline_decode(xdr, NFS4_MAX_SESSIONID_LEN + 4 + 4 + 4 + 4);
if (unlikely(p == NULL))
goto out_overflow;
- memcpy(id.data, p, NFS4_MAX_SESSIONID_LEN);
- if (memcmp(id.data, session->se_sessionid.data,
- NFS4_MAX_SESSIONID_LEN) != 0) {
+
+ if (memcmp(p, session->se_sessionid.data, NFS4_MAX_SESSIONID_LEN)) {
dprintk("NFS: %s Invalid session id\n", __func__);
goto out;
}
@@ -753,6 +750,14 @@ int set_callback_cred(void)
return 0;
}
+void cleanup_callback_cred(void)
+{
+ if (callback_cred) {
+ put_rpccred(callback_cred);
+ callback_cred = NULL;
+ }
+}
+
static struct rpc_cred *get_backchannel_cred(struct nfs4_client *clp, struct rpc_clnt *client, struct nfsd4_session *ses)
{
if (clp->cl_minorversion == 0) {