diff --git a/include/common/h1.h b/include/common/h1.h
index 0d652e7..5ed26fa 100644
--- a/include/common/h1.h
+++ b/include/common/h1.h
@@ -94,6 +94,8 @@
 #define H1_MF_NO_PHDR           0x00000400 // don't add pseudo-headers in the header list
 #define H1_MF_HDRS_ONLY         0x00000800 // parse headers only
 #define H1_MF_CLEAN_CONN_HDR    0x00001000 // skip close/keep-alive values of connection headers during parsing
+#define H1_MF_METH_CONNECT      0x00002000 // Set for a response to a CONNECT request
+#define H1_MF_METH_HEAD         0x00004000 // Set for a response to a HEAD request
 
 /* Note: for a connection to be persistent, we need this for the request :
  *   - one of CLEN or CHNK
diff --git a/include/proto/h1_htx.h b/include/proto/h1_htx.h
new file mode 100644
index 0000000..da37215
--- /dev/null
+++ b/include/proto/h1_htx.h
@@ -0,0 +1,45 @@
+/*
+ * include/types/h1_htx.h
+ * This file defines function prototypes for H1 manipulation using the
+ * internal representation.
+ *
+ * Copyright (C) 2019 HAProxy Technologies, Christopher Faulet <cfaulet@haproxy.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _PROTO_H1_HTX_H
+#define _PROTO_H1_HTX_H
+
+#include <common/buf.h>
+#include <common/ist.h>
+#include <common/h1.h>
+
+int h1_parse_msg_hdrs(struct h1m *h1m, union h1_sl *h1sl, struct htx *dsthtx,
+		      struct buffer *srcbuf, size_t ofs, size_t max);
+int h1_parse_msg_data(struct h1m *h1m, struct htx *dsthtx,
+		      struct buffer *srcbuf, size_t ofs, size_t max,
+		      struct buffer *htxbuf);
+int h1_parse_msg_tlrs(struct h1m *h1m, struct htx *dsthtx,
+		      struct buffer *srcbuf, size_t ofs, size_t max);
+
+#endif /* _PROTO_H1_HTX_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */