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/* vconfig.c - Creates virtual ethernet devices.
*
* Copyright 2012 Sandeep Sharma <sandeep.jack2756@gmail.com>
* Copyright 2012 Kyungwan Han <asura321@gmail.com>
*
* No standard
USE_VCONFIG(NEWTOY(vconfig, "<2>4", TOYFLAG_NEEDROOT|TOYFLAG_SBIN))
config VCONFIG
bool "vconfig"
default y
help
usage: vconfig COMMAND [OPTIONS]
add [interface-name] [vlan_id]
rem [vlan-name]
set_flag [interface-name] [flag-num] [0 | 1]
set_egress_map [vlan-name] [skb_priority] [vlan_qos]
set_ingress_map [vlan-name] [skb_priority] [vlan_qos]
set_name_type [name-type]
Create and remove virtual ethernet devices
*/
#include "toys.h"
#include <linux/if_vlan.h>
#include <linux/sockios.h>
static long strtorange(char *str, long min, long max)
{
char *end = 0;
long val = strtol(str, &end, 10);
if (end && *end && end != str && val >= min && val <= max) return val;
perror_exit("%s not %ld-%ld\n", str, min, max);
}
void vconfig_main(void)
{
struct vlan_ioctl_args request;
char *cmd;
int fd;
fd = xsocket(AF_INET, SOCK_STREAM, 0);
memset(&request, 0, sizeof(struct vlan_ioctl_args));
cmd = toys.optargs[0];
//add ADD_VLAN_CMD 4094 0 // ADD_VLAN_CMD
//rem DEL_VLAN_CMD 0 0 // DEL_VLAN_CMD
//set_ingress_map INT_MAX 0 // SET_VLAN_INGRESS_PRIORITY_CMD
//set_egress_map // SET_VLAN_EGRESS_PRIORITY_CMD
//GET_VLAN_INGRESS_PRIORITY_CMD,
//GET_VLAN_EGRESS_PRIORITY_CMD,
//set_name_type // SET_VLAN_NAME_TYPE_CMD
//set_flag // SET_VLAN_FLAG_CMD,
//GET_VLAN_REALDEV_NAME_CMD,
//GET_VLAN_VID_CMD
if (!strcmp(cmd, "set_name_type")) {
char *types[] = {"VLAN_PLUS_VID", "DEV_PLUS_VID", "VLAN_PLUS_VID_NO_PAD",
"DEV_PLUS_VID_NO_PAD"};
int i, j = sizeof(types)/sizeof(*types);
for (i=0; i<j; i++) if (!strcmp(toys.optargs[1], types[i])) break;
if (i == j) {
for (i=0; i<j; i++) puts(types[i]);
error_exit("%s: unknown '%s'", cmd, toys.optargs[1]);
}
request.u.name_type = i;
request.cmd = SET_VLAN_NAME_TYPE_CMD;
xioctl(fd, SIOCSIFVLAN, &request);
return;
}
// Store interface name
xstrncpy(request.device1, toys.optargs[1], 23);
if (!strcmp(cmd, "add")) {
request.cmd = ADD_VLAN_CMD;
if (toys.optargs[2]) request.u.VID = strtorange(toys.optargs[2], 0, 4094);
if (request.u.VID == 1)
xprintf("WARNING: VLAN 1 does not work with many switches.\n");
} else if (!strcmp(cmd, "rem")) request.cmd = DEL_VLAN_CMD;
else if (!strcmp(cmd, "set_flag")) {
request.cmd = SET_VLAN_FLAG_CMD;
if (toys.optargs[2]) request.u.flag = strtorange(toys.optargs[2], 0, 1);
if (toys.optargs[3]) request.vlan_qos = strtorange(toys.optargs[3], 0, 7);
} else if(strcmp(cmd, "set_egress_map") == 0) {
request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
if (toys.optargs[2])
request.u.skb_priority = strtorange(toys.optargs[2], 0, INT_MAX);
if (toys.optargs[3]) request.vlan_qos = strtorange(toys.optargs[3], 0, 7);
} else if(strcmp(cmd, "set_ingress_map") == 0) {
request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
if (toys.optargs[2])
request.u.skb_priority = strtorange(toys.optargs[2], 0, INT_MAX);
//To set flag we must have to set vlan_qos
if (toys.optargs[3]) request.vlan_qos = strtorange(toys.optargs[3], 0, 7);
} else {
xclose(fd);
perror_exit("Unknown command %s", cmd);
}
xioctl(fd, SIOCSIFVLAN, &request);
xprintf("Successful %s on device %s\n", cmd, toys.optargs[1]);
}
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