build-sys: move slirp as git submodule project

The slirp project is now hosted on freedesktop at:
https://gitlab.freedesktop.org/slirp.

The libslirp source was extracted from qemu/slirp filtered through
clang-format (available in project tree). The qemu slirp directory can
be swapped by a git submodule.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20190424110041.8175-3-marcandre.lureau@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

2 files changed, 0 insertions, 92 deletions

diff --git a/slirp b/slirp
new file mode 160000
+Subproject 59a1b1f165458c2acb7ff0525b543945f741622
diff --git a/slirp/src/udp.h b/slirp/src/udp.h
deleted file mode 100644
index 29c0297179..0000000000
--- a/slirp/src/udp.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause */
-/*
- * Copyright (c) 1982, 1986, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- *	@(#)udp.h	8.1 (Berkeley) 6/10/93
- * udp.h,v 1.3 1994/08/21 05:27:41 paul Exp
- */
-
-#ifndef UDP_H
-#define UDP_H
-
-#define UDP_TTL 0x60
-#define UDP_UDPDATALEN 16192
-
-/*
- * Udp protocol header.
- * Per RFC 768, September, 1981.
- */
-struct udphdr {
-    uint16_t uh_sport;          /* source port */
-    uint16_t uh_dport;          /* destination port */
-    int16_t  uh_ulen;           /* udp length */
-    uint16_t uh_sum;            /* udp checksum */
-};
-
-/*
- * UDP kernel structures and variables.
- */
-struct udpiphdr {
-	        struct  ipovly ui_i;            /* overlaid ip structure */
-	        struct  udphdr ui_u;            /* udp header */
-};
-#define ui_mbuf         ui_i.ih_mbuf.mptr
-#define ui_x1           ui_i.ih_x1
-#define ui_pr           ui_i.ih_pr
-#define ui_len          ui_i.ih_len
-#define ui_src          ui_i.ih_src
-#define ui_dst          ui_i.ih_dst
-#define ui_sport        ui_u.uh_sport
-#define ui_dport        ui_u.uh_dport
-#define ui_ulen         ui_u.uh_ulen
-#define ui_sum          ui_u.uh_sum
-
-/*
- * Names for UDP sysctl objects
- */
-#define UDPCTL_CHECKSUM         1       /* checksum UDP packets */
-#define UDPCTL_MAXID            2
-
-struct mbuf;
-
-void udp_init(Slirp *);
-void udp_cleanup(Slirp *);
-void udp_input(register struct mbuf *, int);
-int udp_attach(struct socket *, unsigned short af);
-void udp_detach(struct socket *);
-struct socket * udp_listen(Slirp *, uint32_t, unsigned, uint32_t, unsigned,
-                           int);
-int udp_output(struct socket *so, struct mbuf *m,
-                struct sockaddr_in *saddr, struct sockaddr_in *daddr,
-                int iptos);
-
-void udp6_input(register struct mbuf *);
-int udp6_output(struct socket *so, struct mbuf *m,
-                struct sockaddr_in6 *saddr, struct sockaddr_in6 *daddr);
-
-#endif