diff options
Diffstat (limited to 'package/toolbox/src/src/route.c')
| -rw-r--r-- | package/toolbox/src/src/route.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/package/toolbox/src/src/route.c b/package/toolbox/src/src/route.c new file mode 100644 index 000000000..031d52160 --- /dev/null +++ b/package/toolbox/src/src/route.c @@ -0,0 +1,113 @@ +/* + * Copyright (c) 2009, The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Google, Inc. 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 COPYRIGHT HOLDERS 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 + * COPYRIGHT OWNER 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. + */ + +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/inet.h> +#include <linux/route.h> + +static inline int set_address(const char *address, struct sockaddr *sa) { + return inet_aton(address, &((struct sockaddr_in *)sa)->sin_addr); +} + +/* current support the following routing entries */ +/* route add default dev wlan0 */ +/* route add default gw 192.168.1.1 dev wlan0 */ +/* route add -net 192.168.1.2 netmask 255.255.255.0 gw 192.168.1.1 */ + +int main(int argc, char *argv[]) +{ + struct rtentry rt = { + .rt_dst = {.sa_family = AF_INET}, + .rt_genmask = {.sa_family = AF_INET}, + .rt_gateway = {.sa_family = AF_INET}, + }; + + errno = EINVAL; + if (argc > 2 && !strcmp(argv[1], "add")) { + if (!strcmp(argv[2], "default")) { + /* route add default dev wlan0 */ + if (argc > 4 && !strcmp(argv[3], "dev")) { + rt.rt_flags = RTF_UP; + rt.rt_dev = argv[4]; + errno = 0; + goto apply; + } + + /* route add default gw 192.168.1.1 dev wlan0 */ + if (argc > 6 && !strcmp(argv[3], "gw") && !strcmp(argv[5], "dev")) { + rt.rt_flags = RTF_UP | RTF_GATEWAY; + rt.rt_dev = argv[6]; + if (set_address(argv[4], &rt.rt_gateway)) { + errno = 0; + } + goto apply; + } + } + + /* route add -net 192.168.1.2 netmask 255.255.255.0 gw 192.168.1.1 */ + if (argc > 7 && !strcmp(argv[2], "-net") && + !strcmp(argv[4], "netmask")) { + if (!strcmp(argv[6], "gw")) { + rt.rt_flags = RTF_UP | RTF_GATEWAY; + if (set_address(argv[3], &rt.rt_dst) && + set_address(argv[5], &rt.rt_genmask) && + set_address(argv[7], &rt.rt_gateway)) { + errno = 0; + } + goto apply; + } else if (!strcmp(argv[6], "dev")) { + rt.rt_flags = RTF_UP; + rt.rt_dev = argv[7]; + if (set_address(argv[3], &rt.rt_dst) && + set_address(argv[5], &rt.rt_genmask)) { + errno = 0; + } + goto apply; + } + } + } + +apply: + if (!errno) { + int s = socket(AF_INET, SOCK_DGRAM, 0); + if (s != -1 && (ioctl(s, SIOCADDRT, &rt) != -1 || errno == EEXIST)) { + return 0; + } + } + puts(strerror(errno)); + return errno; +} |