From: J.Bruce Fields <[email protected]>
Factor out some common code from the integrity and privacy cases.
Signed-off-by: J. Bruce Fields <[email protected]>
Signed-off-by: Neil Brown <[email protected]>
### Diffstat output
./net/sunrpc/auth_gss/svcauth_gss.c | 43 +++++++++++++++++++-----------------
1 file changed, 23 insertions(+), 20 deletions(-)
diff .prev/net/sunrpc/auth_gss/svcauth_gss.c ./net/sunrpc/auth_gss/svcauth_gss.c
--- .prev/net/sunrpc/auth_gss/svcauth_gss.c 2006-09-04 17:09:50.000000000 +1000
+++ ./net/sunrpc/auth_gss/svcauth_gss.c 2006-09-04 17:12:31.000000000 +1000
@@ -1147,6 +1147,25 @@ out:
return ret;
}
+u32 *
+svcauth_gss_prepare_to_wrap(struct xdr_buf *resbuf, struct gss_svc_data *gsd)
+{
+ u32 *p;
+
+ p = gsd->body_start;
+ gsd->body_start = NULL;
+ /* move accept_stat to right place: */
+ memcpy(p, p + 2, 4);
+ /* Don't wrap in failure case: */
+ /* Counting on not getting here if call was not even accepted! */
+ if (*p != rpc_success) {
+ resbuf->head[0].iov_len -= 2 * 4;
+ return NULL;
+ }
+ p++;
+ return p;
+}
+
static inline int
svcauth_gss_wrap_resp_integ(struct svc_rqst *rqstp)
{
@@ -1160,17 +1179,9 @@ svcauth_gss_wrap_resp_integ(struct svc_r
int integ_offset, integ_len;
int stat = -EINVAL;
- p = gsd->body_start;
- gsd->body_start = NULL;
- /* move accept_stat to right place: */
- memcpy(p, p + 2, 4);
- /* Don't wrap in failure case: */
- /* Counting on not getting here if call was not even accepted! */
- if (*p != rpc_success) {
- resbuf->head[0].iov_len -= 2 * 4;
+ p = svcauth_gss_prepare_to_wrap(resbuf, gsd);
+ if (p == NULL)
goto out;
- }
- p++;
integ_offset = (u8 *)(p + 1) - (u8 *)resbuf->head[0].iov_base;
integ_len = resbuf->len - integ_offset;
BUG_ON(integ_len % 4);
@@ -1222,17 +1233,9 @@ svcauth_gss_wrap_resp_priv(struct svc_rq
int offset, *len;
int pad;
- p = gsd->body_start;
- gsd->body_start = NULL;
- /* move accept_stat to right place: */
- memcpy(p, p + 2, 4);
- /* Don't wrap in failure case: */
- /* Counting on not getting here if call was not even accepted! */
- if (*p != rpc_success) {
- resbuf->head[0].iov_len -= 2 * 4;
+ p = svcauth_gss_prepare_to_wrap(resbuf, gsd);
+ if (p == NULL)
return 0;
- }
- p++;
len = p++;
offset = (u8 *)p - (u8 *)resbuf->head[0].iov_base;
*p++ = htonl(gc->gc_seq);
-
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