mirror of
https://github.com/sheumann/hush.git
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167 lines
5.3 KiB
C
167 lines
5.3 KiB
C
#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <strings.h>
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#include <sys/ioctl.h>
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#include <linux/if_vlan.h>
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#include <linux/sockios.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include "busybox.h"
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int vconfig_main(int argc, char** argv) {
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int fd;
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struct vlan_ioctl_args if_request;
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char* cmd = NULL;
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char* if_name = NULL;
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unsigned int vid = 0;
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unsigned int skb_priority;
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unsigned short vlan_qos;
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unsigned int nm_type = VLAN_NAME_TYPE_PLUS_VID;
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char* conf_file_name = "/proc/net/vlan/config";
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memset(&if_request, 0, sizeof(struct vlan_ioctl_args));
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if ((argc < 3) || (argc > 5)) {
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error_msg_and_die("Expecting argc to be 3-5, inclusive. Was: %d\n",argc);
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}
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else {
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cmd = argv[1];
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if (strcasecmp(cmd, "set_name_type") == 0) {
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if (strcasecmp(argv[2], "VLAN_PLUS_VID") == 0) {
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nm_type = VLAN_NAME_TYPE_PLUS_VID;
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}
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else if (strcasecmp(argv[2], "VLAN_PLUS_VID_NO_PAD") == 0) {
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nm_type = VLAN_NAME_TYPE_PLUS_VID_NO_PAD;
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}
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else if (strcasecmp(argv[2], "DEV_PLUS_VID") == 0) {
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nm_type = VLAN_NAME_TYPE_RAW_PLUS_VID;
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}
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else if (strcasecmp(argv[2], "DEV_PLUS_VID_NO_PAD") == 0) {
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nm_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
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}
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else {
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error_msg_and_die("Invalid name type.\n");
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}
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if_request.u.name_type = nm_type;
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}
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else {
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if_name = argv[2];
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if (strlen(if_name) > 15) {
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error_msg_and_die("ERROR: if_name must be 15 characters or less.\n");
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}
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strcpy(if_request.device1, if_name);
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}
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if (argc == 4) {
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vid = atoi(argv[3]);
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if_request.u.VID = vid;
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}
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if (argc == 5) {
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skb_priority = atoi(argv[3]);
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vlan_qos = atoi(argv[4]);
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if_request.u.skb_priority = skb_priority;
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if_request.vlan_qos = vlan_qos;
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}
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}
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// Open up the /proc/vlan/config
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if ((fd = open(conf_file_name, O_RDONLY)) < 0) {
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error_msg("WARNING: Could not open /proc/net/vlan/config. Maybe you need to load the 8021q module, or maybe you are not using PROCFS??\n");
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}
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else {
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close(fd);
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}
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/* We use sockets now, instead of the file descriptor */
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if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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error_msg_and_die("FATAL: Couldn't open a socket..go figure!\n");
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}
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/* add */
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if (strcasecmp(cmd, "add") == 0) {
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if_request.cmd = ADD_VLAN_CMD;
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if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
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error_msg("ERROR: trying to add VLAN #%u to IF -:%s:- error: %s\n",
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vid, if_name, strerror(errno));
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}
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else {
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printf("Added VLAN with VID == %u to IF -:%s:-\n", vid, if_name);
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if (vid == 1) {
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error_msg("WARNING: VLAN 1 does not work with many switches,\nconsider another number if you have problems.\n");
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}
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}
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}//if
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else if (strcasecmp(cmd, "rem") == 0) {
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if_request.cmd = DEL_VLAN_CMD;
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if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
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error_msg("ERROR: trying to remove VLAN -:%s:- error: %s\n",
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if_name, strerror(errno));
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}
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else {
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printf("Removed VLAN -:%s:-\n", if_name);
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}
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}//if
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else if (strcasecmp(cmd, "set_egress_map") == 0) {
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if_request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
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if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
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error_msg("ERROR: trying to set egress map on device -:%s:- error: %s\n",
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if_name, strerror(errno));
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}
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else {
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printf("Set egress mapping on device -:%s:- "
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"Should be visible in /proc/net/vlan/%s\n",
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if_name, if_name);
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}
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}
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else if (strcasecmp(cmd, "set_ingress_map") == 0) {
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if_request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
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if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
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error_msg("ERROR: trying to set ingress map on device -:%s:- error: %s\n",
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if_name, strerror(errno));
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}
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else {
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printf("Set ingress mapping on device -:%s:- "
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"Should be visible in /proc/net/vlan/%s\n",
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if_name, if_name);
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}
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}
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else if (strcasecmp(cmd, "set_flag") == 0) {
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if_request.cmd = SET_VLAN_FLAG_CMD;
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if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
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error_msg("ERROR: trying to set flag on device -:%s:- error: %s\n",
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if_name, strerror(errno));
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}
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else {
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printf("Set flag on device -:%s:- "
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"Should be visible in /proc/net/vlan/%s\n",
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if_name, if_name);
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}
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}
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else if (strcasecmp(cmd, "set_name_type") == 0) {
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if_request.cmd = SET_VLAN_NAME_TYPE_CMD;
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if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
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error_msg("ERROR: trying to set name type for VLAN subsystem, error: %s\n",
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strerror(errno));
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}
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else {
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printf("Set name-type for VLAN subsystem."
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" Should be visible in /proc/net/vlan/config\n");
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}
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}
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else {
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error_msg_and_die("Unknown command -:%s:-\n", cmd);
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}
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return 0;
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}/* main */
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