diff options
Diffstat (limited to 'usr.sbin/bluetooth/btpand/tap.c')
| -rw-r--r-- | usr.sbin/bluetooth/btpand/tap.c | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/usr.sbin/bluetooth/btpand/tap.c b/usr.sbin/bluetooth/btpand/tap.c deleted file mode 100644 index c965633..0000000 --- a/usr.sbin/bluetooth/btpand/tap.c +++ /dev/null @@ -1,167 +0,0 @@ -/* $NetBSD: tap.c,v 1.1 2008/08/17 13:20:57 plunky Exp $ */ - -/*- - * Copyright (c) 2008 Iain Hibbert - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. - */ - -/* $FreeBSD$ */ - -#include <sys/cdefs.h> -__RCSID("$NetBSD: tap.c,v 1.1 2008/08/17 13:20:57 plunky Exp $"); - -#include <sys/types.h> -#include <sys/param.h> -#include <sys/ioctl.h> -#include <sys/uio.h> - -#include <net/if_tap.h> - -#include <fcntl.h> -#include <libutil.h> -#include <paths.h> -#include <stdio.h> -#include <unistd.h> - -#include "btpand.h" - -static bool tap_send(channel_t *, packet_t *); -static bool tap_recv(packet_t *); - -void -tap_init(void) -{ - channel_t *chan; - struct ifreq ifr; - int fd, s; - char pidfile[PATH_MAX]; - - fd = open(interface_name, O_RDWR); - if (fd == -1) { - log_err("Could not open \"%s\": %m", interface_name); - exit(EXIT_FAILURE); - } - - memset(&ifr, 0, sizeof(ifr)); - if (ioctl(fd, TAPGIFNAME, &ifr) == -1) { - log_err("Could not get interface name: %m"); - exit(EXIT_FAILURE); - } - - s = socket(AF_INET, SOCK_DGRAM, 0); - if (s == -1) { - log_err("Could not open PF_LINK socket: %m"); - exit(EXIT_FAILURE); - } - - ifr.ifr_addr.sa_family = AF_LINK; - ifr.ifr_addr.sa_len = ETHER_ADDR_LEN; - b2eaddr(ifr.ifr_addr.sa_data, &local_bdaddr); - - if (ioctl(s, SIOCSIFLLADDR, &ifr) == -1) { - log_err("Could not set %s physical address: %m", ifr.ifr_name); - exit(EXIT_FAILURE); - } - - if (ioctl(s, SIOCGIFFLAGS, &ifr) == -1) { - log_err("Could not get interface flags: %m"); - exit(EXIT_FAILURE); - } - - if ((ifr.ifr_flags & IFF_UP) == 0) { - ifr.ifr_flags |= IFF_UP; - - if (ioctl(s, SIOCSIFFLAGS, &ifr) == -1) { - log_err("Could not set IFF_UP: %m"); - exit(EXIT_FAILURE); - } - } - - close(s); - - log_info("Using interface %s with addr %s", ifr.ifr_name, - ether_ntoa((struct ether_addr *)&ifr.ifr_addr.sa_data)); - - chan = channel_alloc(); - if (chan == NULL) - exit(EXIT_FAILURE); - - chan->send = tap_send; - chan->recv = tap_recv; - chan->mru = ETHER_HDR_LEN + ETHER_MAX_LEN; - memcpy(chan->raddr, ifr.ifr_addr.sa_data, ETHER_ADDR_LEN); - memcpy(chan->laddr, ifr.ifr_addr.sa_data, ETHER_ADDR_LEN); - chan->state = CHANNEL_OPEN; - if (!channel_open(chan, fd)) - exit(EXIT_FAILURE); - - snprintf(pidfile, sizeof(pidfile), "%s/%s.pid", - _PATH_VARRUN, ifr.ifr_name); - chan->pfh = pidfile_open(pidfile, 0600, NULL); - if (chan->pfh == NULL) - log_err("can't create pidfile"); - else if (pidfile_write(chan->pfh) < 0) { - log_err("can't write pidfile"); - pidfile_remove(chan->pfh); - chan->pfh = NULL; - } -} - -static bool -tap_send(channel_t *chan, packet_t *pkt) -{ - struct iovec iov[4]; - ssize_t nw; - - iov[0].iov_base = pkt->dst; - iov[0].iov_len = ETHER_ADDR_LEN; - iov[1].iov_base = pkt->src; - iov[1].iov_len = ETHER_ADDR_LEN; - iov[2].iov_base = pkt->type; - iov[2].iov_len = ETHER_TYPE_LEN; - iov[3].iov_base = pkt->ptr; - iov[3].iov_len = pkt->len; - - /* tap device write never fails */ - nw = writev(chan->fd, iov, __arraycount(iov)); - assert(nw > 0); - - return true; -} - -static bool -tap_recv(packet_t *pkt) -{ - - if (pkt->len < ETHER_HDR_LEN) - return false; - - pkt->dst = pkt->ptr; - packet_adj(pkt, ETHER_ADDR_LEN); - pkt->src = pkt->ptr; - packet_adj(pkt, ETHER_ADDR_LEN); - pkt->type = pkt->ptr; - packet_adj(pkt, ETHER_TYPE_LEN); - - return true; -} |
