X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/e6b06b6b61b4b877937d4a56ba704d3f18154dc2..786989941b7b4504f0234c4a318f929802e981ad:/tun-bsd.c

diff --git a/tun-bsd.c b/tun-bsd.c
deleted file mode 100644
index 4e8c0bd8..00000000
--- a/tun-bsd.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/* -*-c-*-
- *
- * $Id$
- *
- * Tunnel interface for 4.4BSD-derived systems
- *
- * (c) 2001 Straylight/Edgeware
- */
-
-/*----- Licensing notice --------------------------------------------------* 
- *
- * This file is part of Trivial IP Encryption (TrIPE).
- *
- * TrIPE 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 of the License, or
- * (at your option) any later version.
- * 
- * TrIPE 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 TrIPE; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-/*----- Header files ------------------------------------------------------*/
-
-#define TUN_INTERNALS
-
-#include "tripe.h"
-
-/*----- Main code ---------------------------------------------------------*/
-
-#ifdef TUN_BSD
-
-struct tunnel {
-  const tunnel_ops *ops;		/* Pointer to operations */
-  sel_file f;				/* Selector for tunnel device */
-  struct peer *p;			/* Pointer to my peer */
-  unsigned n;				/* Number of my tunnel device */
-};  
-
-/* --- @t_ifname@ --- *
- *
- * Arguments:	@tunnel *t@ = pointer to tunnel block
- *
- * Returns:	A pointer to the tunnel's interface name.
- */
-
-static const char *t_ifname(tunnel *t)
-{
-  static char buf[8];
-  sprintf(buf, "tun%u", t->n);
-  return (buf);
-}
-
-/* --- @t_read@ --- *
- *
- * Arguments:	@int fd@ = file descriptor to read
- *		@unsigned mode@ = what's happened
- *		@void *v@ = pointer to tunnel block
- *
- * Returns:	---
- *
- * Use:		Reads data from the tunnel.
- */
-
-static void t_read(int fd, unsigned mode, void *v)
-{
-  tunnel *t = v;
-  ssize_t n;
-  buf b;
-
-  n = read(fd, buf_i, sizeof(buf_i));
-  if (n < 0) {
-    a_warn("TUN", "%s", t_ifname(t), "read-error", "?ERRNO", A_END);
-    return;
-  }
-  IF_TRACING(T_TUNNEL, {
-    trace(T_TUNNEL, "tun-bsd: packet arrived");
-    trace_block(T_PACKET, "tun-bsd: packet contents", buf_i, n);
-  })
-  buf_init(&b, buf_i, n);
-  p_tun(t->p, &b);
-}
-
-/* --- @t_init@ --- *
- *
- * Arguments:	---
- *
- * Returns:	---
- *
- * Use:		Initializes the tunneling system.  Maybe this will require
- *		opening file descriptors or something.
- */
-
-static void t_init(void) { return; }
-
-/* --- @t_create@ --- *
- *
- * Arguments:	@peer *p@ = pointer to peer block
- *
- * Returns:	A tunnel block if it worked, or null on failure.
- *
- * Use:		Initializes a new tunnel.
- */
-
-static tunnel *t_create(peer *p)
-{
-  int fd;
-  unsigned n;
-  tunnel *t;
-  char buf[16];
-
-  n = 0;
-  for (;;) {
-    sprintf(buf, "/dev/tun%u", n);
-    if ((fd = open(buf, O_RDWR)) >= 0)
-      break;
-    switch (errno) {
-      case EBUSY:
-	T( trace(T_TUNNEL, "tunnel device %u busy: skipping", n); )
-	break;
-      case ENOENT:
-	a_warn("TUN", "-", "bsd", "no-tunnel-devices", A_END);
-	return (0);
-      default:
-	a_warn("TUN", "-", "open-error", "%s", buf, "?ERRNO", A_END);
-	break;
-    }
-    n++;
-  }
-
-  t = CREATE(tunnel);
-  t->ops = &tun_bsd;
-  fdflags(fd, O_NONBLOCK, O_NONBLOCK, FD_CLOEXEC, FD_CLOEXEC);
-  t->p = p;
-  t->n = n;
-  sel_initfile(&sel, &t->f, fd, SEL_READ, t_read, t);
-  sel_addfile(&t->f);
-  T( trace(T_TUNNEL, "tun-bsd: attached interface %s to peer `%s'",
-	   t_ifname(t), p_name(p)); )
-  return (t);
-}
-
-/* --- @t_inject@ --- *
- *
- * Arguments:	@tunnel *t@ = pointer to tunnel block
- *		@buf *b@ = buffer to send
- *
- * Returns:	---
- *
- * Use:		Injects a packet into the local network stack.
- */
-
-static void t_inject(tunnel *t, buf *b)
-{
-  IF_TRACING(T_TUNNEL, {
-    trace(T_TUNNEL, "tun-bsd: inject decrypted packet");
-    trace_block(T_PACKET, "tun-bsd: packet contents", BBASE(b), BLEN(b));
-  })
-  write(t->f.fd, BBASE(b), BLEN(b));
-}
-
-/* --- @t_destroy@ --- *
- *
- * Arguments:	@tunnel *t@ = pointer to tunnel block
- *
- * Returns:	---
- *
- * Use:		Destroys a tunnel.
- */
-
-static void t_destroy(tunnel *t)
-{
-  sel_rmfile(&t->f);
-  close(t->f.fd);
-  DESTROY(t);
-}
-
-const tunnel_ops tun_bsd = {
-  "bsd",
-  t_init,
-  t_create,
-  t_ifname,
-  t_inject,
-  t_destroy
-};
-
-#endif
-
-/*----- That's all, folks -------------------------------------------------*/