mirror of
https://github.com/kanjitalk755/macemu.git
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Linux etherhelper support.
This commit is contained in:
Dan Sumorok
parent
fcc1598086
commit
7710322fd3
624
BasiliskII/src/Unix/Linux/etherhelpertool.c
Normal file
624
BasiliskII/src/Unix/Linux/etherhelpertool.c
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@ -0,0 +1,624 @@
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/*
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* etherhelpertool.c - Reads and writes raw ethernet packets usng bpf
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* interface.
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*
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* Copyright (C) 2010, Daniel Sumorok
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*
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* Basilisk II (C) 1997-2008 Christian Bauer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <ifaddrs.h>
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#include <errno.h>
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#include <sys/select.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <net/if.h>
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#include <sys/time.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <netpacket/packet.h>
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#include <net/ethernet.h>
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#include <fcntl.h>
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#include <signal.h>
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#include <linux/if_tun.h>
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#include <strings.h>
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#define STR_MAX 256
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#define MAX_ARGV 10
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static int remove_bridge = 0;
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static const char *exec_name = "etherhelpertool";
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static int main_loop(int sd, int use_bpf);
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static int open_tap(char *ifname);
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static int run_cmd(const char *cmd);
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static void handler(int signum);
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static int install_signal_handlers(void);
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static void do_exit(void);
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static int open_bpf(char *ifname);
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int main(int argc, char **argv)
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{
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char *if_name;
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int ret = 255;
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int sd = -1;
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int tapNum;
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int use_bpf;
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if (argc != 2) {
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return 255;
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}
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if_name = argv[1];
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do {
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if (strncmp(if_name, "tap", 3) == 0) {
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sd = open_tap(if_name);
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use_bpf = 0;
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} else {
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sd = open_bpf(if_name);
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use_bpf = 1;
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}
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if (sd < 0) {
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fprintf(stderr, "%s: open device failed.\n",
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exec_name);
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ret = 253;
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break;
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}
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if (install_signal_handlers() != 0) {
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fprintf(stderr,
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"%s: failed to install signal handers.\n",
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exec_name);
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ret = 252;
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break;
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}
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ret = main_loop(sd, use_bpf);
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close(sd);
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} while (0);
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do_exit();
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return ret;
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}
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static int main_loop(int sd, int use_bpf)
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{
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fd_set readSet;
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char *outgoing, *incoming;
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unsigned short *out_len;
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unsigned short *in_len;
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int in_index, out_index;
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u_int blen = 0;
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int ret;
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int fret = 0;
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int pkt_len;
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int frame_len;
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int pad;
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char c = 0;
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blen = 4096;
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incoming = malloc(blen);
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if (incoming == NULL) {
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fprintf(stderr,
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"%s: malloc() failed.\n",
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exec_name);
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return -2;
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}
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outgoing = malloc(blen);
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if (outgoing == NULL) {
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free(outgoing);
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fprintf(stderr,
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"%s: malloc() failed.\n",
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exec_name);
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return -3;
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}
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in_index = 0;
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out_index = 0;
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out_len = (unsigned short *)outgoing;
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/* Let our parent know we are ready for business. */
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if(write(0, &c, 1) != 1) {
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fprintf(stderr, "%s: Failed to notify main application: %s\n",
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__func__, strerror(errno));
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}
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while (1) {
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int i;
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FD_ZERO(&readSet);
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FD_SET(0, &readSet);
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FD_SET(sd, &readSet);
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ret = select(sd + 1, &readSet, NULL, NULL, NULL);
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if (ret < 0) {
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fprintf(stderr,
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"%s: select() failed.\n",
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exec_name);
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fret = -4;
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break;
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}
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if (FD_ISSET(0, &readSet)) {
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if (out_index < 2) {
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ret = read(0, outgoing + out_index, 2-out_index);
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} else {
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ret = read(0, outgoing + out_index, *out_len - out_index + 2);
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}
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if (ret < 1) {
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if(ret < 0) {
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fprintf(stderr,
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"%s: read() failed.\n",
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exec_name);
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}
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fret = -5;
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break;
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}
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out_index += ret;
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if (out_index > 1) {
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if ((*out_len + 2) > blen) {
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fret = -6;
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break;
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}
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if (out_index == (*out_len + 2)) {
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ret = write(sd, out_len + 1, *out_len);
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if (ret != *out_len) {
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fprintf(stderr,
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"%s: write() failed.\n",
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exec_name);
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fret = -7;
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break;
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}
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out_index = 0;
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}
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}
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}
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if (FD_ISSET(sd, &readSet)) {
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in_len = (unsigned short *)incoming;
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pkt_len = read(sd, in_len + 1, blen-2);
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if (pkt_len < 14) {
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fprintf(stderr,
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"%s: read() returned %d.\n",
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exec_name, pkt_len);
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fret = -8;
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break;
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}
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*in_len = pkt_len;
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if (write(0, in_len, pkt_len + 2) < (pkt_len + 2)) {
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fprintf(stderr,
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"%s: write() failed\n",
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exec_name);
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fret = -10;
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break;
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}
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}
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}
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free(incoming);
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free(outgoing);
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return fret;
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}
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static int open_tap(char *ifname)
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{
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char str[STR_MAX] = {0};
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char ifstr[STR_MAX] = {0};
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char *interface;
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char *address = NULL;
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char *netmask = NULL;
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char *bridge = NULL;
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char *bridged_if = NULL;
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int sd;
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snprintf(ifstr, STR_MAX, "%s", ifname);
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interface = strtok(ifstr, "/");
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bridge = strtok(NULL, "/");
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if (bridge != NULL) {
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bridged_if = strtok(NULL, "/");
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}
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interface = strtok(ifstr, ":");
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address = strtok(NULL, ":");
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if (address != NULL) {
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netmask = strtok(NULL, ":");
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}
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snprintf(str, STR_MAX, "/dev/%s", interface);
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sd = open(str, O_RDWR);
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if (sd < 0) {
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fprintf(stderr, "%s: Failed to open %s\n",
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exec_name, interface);
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return -1;
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}
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if (address == NULL) {
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snprintf(str, STR_MAX, "/sbin/ifconfig %s up", interface);
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} else if (netmask == NULL) {
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snprintf(str, STR_MAX, "/sbin/ifconfig %s %s",
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interface, address);
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} else {
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snprintf(str, STR_MAX, "/sbin/ifconfig %s %s netmask %s",
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interface, address, netmask);
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}
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if (run_cmd(str) != 0) {
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fprintf(stderr, "%s: Failed to configure %s\n",
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exec_name, interface);
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close(sd);
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return -1;
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}
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if (bridge != NULL) {
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/* Check to see if bridge is alread up */
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snprintf(str, STR_MAX, "/sbin/ifconfig %s", bridge);
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if (run_cmd(str) == 0) {
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/* bridge is already up */
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if (bridged_if != NULL) {
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fprintf(stderr, "%s: Warning: %s already exists, so %s was not added.\n",
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exec_name, bridge, bridged_if);
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}
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} else {
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snprintf(str, STR_MAX, "/sbin/ifconfig %s create", bridge);
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if (run_cmd(str) != 0) {
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fprintf(stderr, "%s: Failed to create %s\n",
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exec_name, bridge);
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close(sd);
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return -1;
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}
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remove_bridge = 1;
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snprintf(str, STR_MAX, "/sbin/ifconfig %s up", bridge);
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if (run_cmd(str) != 0) {
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fprintf(stderr, "%s: Failed to open %s\n",
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exec_name, bridge);
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close(sd);
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return -1;
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}
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if (bridged_if != NULL) {
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snprintf(str, STR_MAX, "/sbin/ifconfig %s addm %s",
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bridge, bridged_if);
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if (run_cmd(str) != 0) {
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fprintf(stderr, "%s: Failed to add %s to %s\n",
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exec_name, bridged_if, bridge);
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close(sd);
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return -1;
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}
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}
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snprintf(str, STR_MAX, "/sbin/ifconfig %s addm %s",
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bridge, interface);
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if (run_cmd(str) != 0) {
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fprintf(stderr, "%s: Failed to add %s to %s\n",
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exec_name, interface, bridge);
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close(sd);
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return -1;
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}
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}
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}
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return sd;
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}
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static int run_cmd(const char *cmd) {
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char cmd_buffer[STR_MAX] = {0};
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char *argv[MAX_ARGV + 1] = {0};
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int i;
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pid_t pid, waitpid;
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int status = 0;
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/* Collect arguments */
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strncpy(cmd_buffer, cmd, STR_MAX-1);
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argv[0] = strtok(cmd_buffer, " ");
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for (i=1; i<MAX_ARGV; ++i) {
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argv[i] = strtok(NULL, " ");
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if (argv[i] == NULL) {
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break;
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}
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}
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/* Run sub process */
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pid = fork();
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if (pid == 0) {
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/* Child process */
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fclose(stdout);
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fclose(stderr);
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if (execve(argv[0], argv, NULL) < 0) {
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perror("execve");
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return -1;
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}
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} else {
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/* Wait for child to exit */
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waitpid = wait(&status);
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if (waitpid < 0) {
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perror("wait");
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return -1;
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}
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if (status != 0) {
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return -1;
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}
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}
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return 0;
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}
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static void handler(int signum) {
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do_exit();
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exit(1);
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}
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static int install_signal_handlers() {
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struct sigaction act = {0};
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act.sa_handler = handler;
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sigemptyset(&act.sa_mask);
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if (sigaction(SIGINT, &act, NULL) != 0) {
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return -1;
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}
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if (sigaction(SIGHUP, &act, NULL) != 0) {
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return -1;
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}
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if (sigaction(SIGTERM, &act, NULL) != 0) {
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return -1;
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}
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return 0;
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}
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static void do_exit() {
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if (remove_bridge) {
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run_cmd("/sbin/ifconfig bridge0 destroy");
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}
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}
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static int open_bpf(char *ifname)
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{
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int sd;
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struct sockaddr_ll sockaddr = {0};
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struct ifreq ifreq = {0};
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struct packet_mreq pmreq = {0};
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socklen_t socklen = sizeof(struct packet_mreq);
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sd = socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
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if(sd < 0) {
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perror("socket");
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return -1;
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}
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strncpy(ifreq.ifr_name, ifname, IFNAMSIZ);
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if(ioctl(sd, SIOCGIFINDEX, &ifreq) != 0) {
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fprintf(stderr, "%s: ioctl(SIOCGIFINDEX): %s\n",
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__func__, strerror(errno));
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close(sd);
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return -1;
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}
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pmreq.mr_ifindex = ifreq.ifr_ifindex;
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pmreq.mr_type = PACKET_MR_PROMISC;
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if(setsockopt(sd, SOL_PACKET, PACKET_ADD_MEMBERSHIP,
|
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&pmreq, socklen) != 0) {
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fprintf(stderr, "%s: setsockopt() failed: %s\n",
|
||||
__func__, strerror(errno));
|
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close(sd);
|
||||
return -1;
|
||||
}
|
||||
|
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sockaddr.sll_family = AF_PACKET;
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sockaddr.sll_ifindex = ifreq.ifr_ifindex;
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sockaddr.sll_protocol = htons(ETH_P_ALL);
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if(bind(sd, (struct sockaddr *)&sockaddr,
|
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sizeof(struct sockaddr_ll)) != 0) {
|
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fprintf(stderr, "%s: bind failed: %s\n",
|
||||
__func__, strerror(errno));
|
||||
close(sd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return sd;
|
||||
}
|
||||
|
||||
#if 0
|
||||
static int retreive_auth_info(void);
|
||||
|
||||
|
||||
static int retreive_auth_info(void)
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||||
{
|
||||
AuthorizationRef aRef;
|
||||
OSStatus status;
|
||||
AuthorizationRights myRights;
|
||||
AuthorizationRights *newRights;
|
||||
AuthorizationItem *myItem;
|
||||
AuthorizationItem myItems[1];
|
||||
AuthorizationItemSet *mySet;
|
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int i;
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||||
|
||||
status = AuthorizationCopyPrivilegedReference(&aRef, kAuthorizationFlagDefaults);
|
||||
if (status != errAuthorizationSuccess) {
|
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return -1;
|
||||
}
|
||||
|
||||
status = AuthorizationCopyInfo(aRef, NULL, &mySet);
|
||||
if (status != errAuthorizationSuccess) {
|
||||
AuthorizationFree(aRef, kAuthorizationFlagDestroyRights);
|
||||
return -1;
|
||||
}
|
||||
|
||||
myItems[0].name = "system.privilege.admin";
|
||||
myItems[0].valueLength = 0;
|
||||
myItems[0].value = NULL;
|
||||
myItems[0].flags = 0;
|
||||
|
||||
myRights.count = sizeof (myItems) / sizeof (myItems[0]);
|
||||
myRights.items = myItems;
|
||||
|
||||
status = AuthorizationCopyRights(aRef, &myRights, NULL,
|
||||
kAuthorizationFlagExtendRights,
|
||||
&newRights);
|
||||
if (status != errAuthorizationSuccess) {
|
||||
AuthorizationFreeItemSet(mySet);
|
||||
AuthorizationFree(aRef, kAuthorizationFlagDestroyRights);
|
||||
return -2;
|
||||
}
|
||||
|
||||
AuthorizationFreeItemSet(newRights);
|
||||
AuthorizationFreeItemSet(mySet);
|
||||
AuthorizationFree(aRef, kAuthorizationFlagDestroyRights);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int open_tap(char *ifname)
|
||||
{
|
||||
char str[STR_MAX] = {0};
|
||||
char ifstr[STR_MAX] = {0};
|
||||
char *interface;
|
||||
char *address = NULL;
|
||||
char *netmask = NULL;
|
||||
char *bridge = NULL;
|
||||
char *bridged_if = NULL;
|
||||
int sd;
|
||||
|
||||
snprintf(ifstr, STR_MAX, "%s", ifname);
|
||||
interface = strtok(ifstr, "/");
|
||||
bridge = strtok(NULL, "/");
|
||||
if (bridge != NULL) {
|
||||
bridged_if = strtok(NULL, "/");
|
||||
}
|
||||
interface = strtok(ifstr, ":");
|
||||
|
||||
address = strtok(NULL, ":");
|
||||
|
||||
if (address != NULL) {
|
||||
netmask = strtok(NULL, ":");
|
||||
}
|
||||
|
||||
snprintf(str, STR_MAX, "/dev/%s", interface);
|
||||
|
||||
sd = open(str, O_RDWR);
|
||||
if (sd < 0) {
|
||||
fprintf(stderr, "%s: Failed to open %s\n",
|
||||
exec_name, interface);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (address == NULL) {
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s up", interface);
|
||||
} else if (netmask == NULL) {
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s %s",
|
||||
interface, address);
|
||||
} else {
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s %s netmask %s",
|
||||
interface, address, netmask);
|
||||
}
|
||||
|
||||
if (run_cmd(str) != 0) {
|
||||
fprintf(stderr, "%s: Failed to configure %s\n",
|
||||
exec_name, interface);
|
||||
close(sd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (bridge != NULL) {
|
||||
/* Check to see if bridge is alread up */
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s", bridge);
|
||||
if (run_cmd(str) == 0) {
|
||||
/* bridge is already up */
|
||||
if (bridged_if != NULL) {
|
||||
fprintf(stderr, "%s: Warning: %s already exists, so %s was not added.\n",
|
||||
exec_name, bridge, bridged_if);
|
||||
}
|
||||
} else {
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s create", bridge);
|
||||
if (run_cmd(str) != 0) {
|
||||
fprintf(stderr, "%s: Failed to create %s\n",
|
||||
exec_name, bridge);
|
||||
close(sd);
|
||||
return -1;
|
||||
}
|
||||
remove_bridge = 1;
|
||||
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s up", bridge);
|
||||
if (run_cmd(str) != 0) {
|
||||
fprintf(stderr, "%s: Failed to open %s\n",
|
||||
exec_name, bridge);
|
||||
close(sd);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (bridged_if != NULL) {
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s addm %s",
|
||||
bridge, bridged_if);
|
||||
if (run_cmd(str) != 0) {
|
||||
fprintf(stderr, "%s: Failed to add %s to %s\n",
|
||||
exec_name, bridged_if, bridge);
|
||||
close(sd);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
snprintf(str, STR_MAX, "/sbin/ifconfig %s addm %s",
|
||||
bridge, interface);
|
||||
if (run_cmd(str) != 0) {
|
||||
fprintf(stderr, "%s: Failed to add %s to %s\n",
|
||||
exec_name, interface, bridge);
|
||||
close(sd);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return sd;
|
||||
}
|
||||
|
||||
|
||||
#endif
|
||||
58
BasiliskII/src/Unix/Linux/runtool.c
Normal file
58
BasiliskII/src/Unix/Linux/runtool.c
Normal file
@ -0,0 +1,58 @@
|
||||
#include <string.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/wait.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/socket.h>
|
||||
#include <errno.h>
|
||||
|
||||
#define STR_MAX 1024
|
||||
#define MAX_ARGV 10
|
||||
|
||||
FILE * run_tool(const char *if_name, const char *tool_name) {
|
||||
char cmd_buffer[STR_MAX] = {0};
|
||||
char * const argv[3] = {NULL, NULL, NULL};
|
||||
int i;
|
||||
pid_t pid, waitpid;
|
||||
int status = 0;
|
||||
int fds[2];
|
||||
char c;
|
||||
|
||||
if(socketpair(PF_LOCAL, SOCK_STREAM, 0, fds) != 0) {
|
||||
fprintf(stderr, "%s: socketpair() failed: %s\n",
|
||||
__func__, strerror(errno));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
((const char**)argv)[0] = tool_name;
|
||||
((const char**)argv)[1] = if_name;
|
||||
|
||||
/* Run sub process */
|
||||
pid = fork();
|
||||
if (pid == 0) {
|
||||
/* Child process */
|
||||
fclose(stdout);
|
||||
fclose(stdin);
|
||||
dup2(fds[0], 0);
|
||||
close(fds[1]);
|
||||
close(fds[0]);
|
||||
|
||||
if (execve(tool_name, argv, NULL) < 0) {
|
||||
perror("execve");
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
close(fds[0]);
|
||||
|
||||
if(read(fds[1], &c, 1) < 1) {
|
||||
close(fds[1]);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return fdopen(fds[1], "rw");
|
||||
}
|
||||
@ -43,7 +43,16 @@
|
||||
#include <sys/socket.h>
|
||||
|
||||
#ifdef ENABLE_MACOSX_ETHERHELPER
|
||||
|
||||
#ifdef __APPLE__
|
||||
#include <net/if_dl.h>
|
||||
#endif
|
||||
|
||||
#ifdef __linux__
|
||||
#include <linux/if_packet.h>
|
||||
#endif
|
||||
|
||||
#include <sys/socket.h>
|
||||
#include <ifaddrs.h>
|
||||
#endif
|
||||
|
||||
@ -1140,8 +1149,13 @@ static int get_mac_address(const char* dev, unsigned char *addr)
|
||||
{
|
||||
struct ifaddrs *ifaddrs, *next;
|
||||
int ret = -1;
|
||||
#ifdef __APPLE__
|
||||
struct sockaddr_dl *sa;
|
||||
#endif
|
||||
|
||||
#ifdef __linux__
|
||||
struct sockaddr_ll *sa;
|
||||
#endif
|
||||
if (getifaddrs(&ifaddrs) != 0) {
|
||||
perror("getifaddrs");
|
||||
return -1;
|
||||
@ -1150,6 +1164,7 @@ static int get_mac_address(const char* dev, unsigned char *addr)
|
||||
next = ifaddrs;
|
||||
while (next != NULL) {
|
||||
switch (next->ifa_addr->sa_family) {
|
||||
#ifdef __APPLE__
|
||||
case AF_LINK:
|
||||
if (!strcmp(dev, next->ifa_name)) {
|
||||
sa = (struct sockaddr_dl *)next->ifa_addr;
|
||||
@ -1157,6 +1172,17 @@ static int get_mac_address(const char* dev, unsigned char *addr)
|
||||
ret = 0;
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
|
||||
#ifdef __linux__
|
||||
case AF_PACKET:
|
||||
if (!strcmp(dev, next->ifa_name)) {
|
||||
sa = (struct sockaddr_ll *)next->ifa_addr;
|
||||
memcpy(addr, sa->sll_addr, 6);
|
||||
ret = 0;
|
||||
}
|
||||
break;
|
||||
#endif
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user