diff options
| -rw-r--r-- | net/sunrpc/auth_gss/svcauth_gss.c | 43 |
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); |