httpd/SOURCES/httpd-2.4.37-r1870095+.patch
2021-10-08 11:47:19 +00:00

118 lines
4.1 KiB
Diff

# ./pullrev.sh 1870095 1870097
http://svn.apache.org/viewvc?view=revision&revision=1870095
http://svn.apache.org/viewvc?view=revision&revision=1870097
--- httpd-2.4.37/modules/ssl/ssl_engine_kernel.c
+++ httpd-2.4.37/modules/ssl/ssl_engine_kernel.c
@@ -114,6 +114,45 @@
return result;
}
+/* If a renegotiation is required for the location, and the request
+ * includes a message body (and the client has not requested a "100
+ * Continue" response), then the client will be streaming the request
+ * body over the wire already. In that case, it is not possible to
+ * stop and perform a new SSL handshake immediately; once the SSL
+ * library moves to the "accept" state, it will reject the SSL packets
+ * which the client is sending for the request body.
+ *
+ * To allow authentication to complete in the hook, the solution used
+ * here is to fill a (bounded) buffer with the request body, and then
+ * to reinject that request body later.
+ *
+ * This function is called to fill the renegotiation buffer for the
+ * location as required, or fail. Returns zero on success or HTTP_
+ * error code on failure.
+ */
+static int fill_reneg_buffer(request_rec *r, SSLDirConfigRec *dc)
+{
+ int rv;
+ apr_size_t rsize;
+
+ /* ### this is HTTP/1.1 specific, special case for protocol? */
+ if (r->expecting_100 || !ap_request_has_body(r)) {
+ return 0;
+ }
+
+ rsize = dc->nRenegBufferSize == UNSET ? DEFAULT_RENEG_BUFFER_SIZE : dc->nRenegBufferSize;
+ if (rsize > 0) {
+ /* Fill the I/O buffer with the request body if possible. */
+ rv = ssl_io_buffer_fill(r, rsize);
+ }
+ else {
+ /* If the reneg buffer size is set to zero, just fail. */
+ rv = HTTP_REQUEST_ENTITY_TOO_LARGE;
+ }
+
+ return rv;
+}
+
#ifdef HAVE_TLSEXT
static int ap_array_same_str_set(apr_array_header_t *s1, apr_array_header_t *s2)
{
@@ -814,41 +853,14 @@
}
}
- /* If a renegotiation is now required for this location, and the
- * request includes a message body (and the client has not
- * requested a "100 Continue" response), then the client will be
- * streaming the request body over the wire already. In that
- * case, it is not possible to stop and perform a new SSL
- * handshake immediately; once the SSL library moves to the
- * "accept" state, it will reject the SSL packets which the client
- * is sending for the request body.
- *
- * To allow authentication to complete in this auth hook, the
- * solution used here is to fill a (bounded) buffer with the
- * request body, and then to reinject that request body later.
- */
- if (renegotiate && !renegotiate_quick
- && !r->expecting_100
- && ap_request_has_body(r)) {
- int rv;
- apr_size_t rsize;
-
- rsize = dc->nRenegBufferSize == UNSET ? DEFAULT_RENEG_BUFFER_SIZE :
- dc->nRenegBufferSize;
- if (rsize > 0) {
- /* Fill the I/O buffer with the request body if possible. */
- rv = ssl_io_buffer_fill(r, rsize);
- }
- else {
- /* If the reneg buffer size is set to zero, just fail. */
- rv = HTTP_REQUEST_ENTITY_TOO_LARGE;
- }
-
- if (rv) {
+ /* Fill reneg buffer if required. */
+ if (renegotiate && !renegotiate_quick) {
+ rc = fill_reneg_buffer(r, dc);
+ if (rc) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(02257)
"could not buffer message body to allow "
"SSL renegotiation to proceed");
- return rv;
+ return rc;
}
}
@@ -1132,6 +1144,17 @@
}
}
+ /* Fill reneg buffer if required. */
+ if (change_vmode) {
+ rc = fill_reneg_buffer(r, dc);
+ if (rc) {
+ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(10228)
+ "could not buffer message body to allow "
+ "TLS Post-Handshake Authentication to proceed");
+ return rc;
+ }
+ }
+
if (change_vmode) {
char peekbuf[1];