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authorJ.Bruce Fields <bfields@fieldses.org>2006-10-04 02:16:06 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-04 07:55:19 -0700
commit3c15a486643a103eaf068e5fb3b7f9d720d579a7 (patch)
tree624c59db4b1aa7ac906fc71212a2446df2b8aaca /net/sunrpc/auth_gss
parent89e63ef609fb0064a47281e31e38010159c32d57 (diff)
[PATCH] knfsd: svcrpc: gss: factor out some common wrapping code
Factor out some common code from the integrity and privacy cases. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'net/sunrpc/auth_gss')
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c43
1 files changed, 23 insertions, 20 deletions
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 558692d7e465..eeb1cce96649 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -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_rqst *rqstp)
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_rqst *rqstp)
int offset;
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);