lwip: Add LwIP-based TCP/IP translator

* Makefile (prog-subdirs): Add lwip.
* config.make.in (HAVE_LIBLWIP, liblwip_CFLAGS, liblwip_LIBS): Define
variables.
* configure.ac: Check for liblwip.
* lwip/: New directory.

1 files changed, 44 insertions, 0 deletions

diff --git a/lwip/mig-mutate.h b/lwip/mig-mutate.h
new file mode 100644
index 00000000..3ed89c55
--- /dev/null
+++ b/lwip/mig-mutate.h
@@ -0,0 +1,44 @@
+/*
+   Copyright (C) 1995,2017 Free Software Foundation, Inc.
+   Written by Michael I. Bushnell, p/BSG.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   The GNU Hurd 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with the GNU Hurd.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* Only CPP macro definitions should go in this file. */
+
+#define IO_SELECT_REPLY_PORT
+
+#define IO_INTRAN sock_user_t begin_using_socket_port (io_t)
+#define IO_INTRAN_PAYLOAD sock_user_t begin_using_socket_payload
+#define IO_DESTRUCTOR end_using_socket_port (sock_user_t)
+#define IO_IMPORTS import "mig-decls.h";
+#define IIOCTL_IMPORTS import "mig-decls.h";
+
+#define SOCKET_INTRAN sock_user_t begin_using_socket_port (socket_t)
+#define SOCKET_INTRAN_PAYLOAD sock_user_t begin_using_socket_payload
+#define SOCKET_DESTRUCTOR end_using_socket_port (sock_user_t)
+#define SOCKET_IMPORTS				\
+  import "mig-decls.h";				\
+  import "../libtrivfs/mig-decls.h";		\
+
+#define ADDRPORT_INTRAN sock_addr_t begin_using_sockaddr_port (addr_port_t)
+#define ADDRPORT_INTRAN_PAYLOAD sock_addr_t begin_using_sockaddr_payload
+#define ADDRPORT_DESTRUCTOR end_using_sockaddr_port (sock_addr_t)
+
+#define PF_INTRAN trivfs_protid_t trivfs_begin_using_protid (pf_t)
+#define PF_INTRAN_PAYLOAD trivfs_protid_t trivfs_begin_using_protid_payload
+#define PF_DESTRUCTOR trivfs_end_using_protid (trivfs_protid_t)