Great reorganization.

[tripe] / tun-unet.c

diff --git a/tun-unet.c b/tun-unet.c
deleted file mode 100644 (file)
index c2b6e77..0000000
--- a/tun-unet.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/* -*-c-*-
- *
- * $Id$
- *
- * Tunnel interface based on Linux Usernet
- *
- * (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"
-
-#ifdef TUN_UNET
-#  include <sys/ioctl.h>
-#  include <net/if.h>
-#  include <unet.h>
-#endif
-
-/*----- Main code ---------------------------------------------------------*/
-
-#ifdef TUN_UNET
-
-struct tunnel {
-  const tunnel_ops *ops;               /* Pointer to operations */
-  sel_file f;                          /* Selector for Usernet device */
-  struct peer *p;                      /* Pointer to my peer */
-};
-
-/* --- @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 b[UNET_NAMEMAX];
-  struct unet_info uni;
-  if (ioctl(t->f.fd, UNIOCGINFO, &uni)) {
-    a_warn("TUN", "-", "unet", "getinfo-error", "?ERRNO", A_END);
-    return ("<error>");
-  }
-  if (strlen(uni.uni_ifname) + 1 > sizeof(b)) {
-    a_warn("TUN", "-", "unet", "ifname-too-long", A_END);
-    return ("<error>");
-  }
-  strcpy(b, uni.uni_ifname);
-  return (b);
-}
-
-/* --- @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-unet: packet arrived");
-    trace_block(T_PACKET, "tun-unet: 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:  @tunnel *t@ = pointer to tunnel block
- *             @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;
-  tunnel *t;
-  int f;
-
-  if ((fd = open("/dev/unet", O_RDWR)) < 0) {
-    a_warn("TUN", "-", "unet", "open-error", "/dev/unet", "?ERRNO", A_END);
-    return (0);
-  }
-  fdflags(fd, O_NONBLOCK, O_NONBLOCK, FD_CLOEXEC, FD_CLOEXEC);
-  if ((f = ioctl(fd, UNIOCGIFFLAGS)) < 0 ||
-      ioctl(fd, UNIOCSIFFLAGS, f | IFF_POINTOPOINT)) {
-    a_warn("TUN", "-", "unet", "config-error", "?ERRNO", A_END);
-    close(fd);
-    return (0);
-  }
-  t = CREATE(tunnel);
-  t->ops = &tun_unet;
-  t->p = p;
-  sel_initfile(&sel, &t->f, fd, SEL_READ, t_read, t);
-  sel_addfile(&t->f);
-  T( trace(T_TUNNEL, "tun-unet: 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-unet: inject decrypted packet");
-    trace_block(T_PACKET, "tun-unet: 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_unet = {
-  "unet",
-  t_init,
-  t_create,
-  t_ifname,
-  t_inject,
-  t_destroy
-};
-
-#endif
-
-/*----- That's all, folks -------------------------------------------------*/