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-rw-r--r--toys/other/vconfig.c193
1 files changed, 95 insertions, 98 deletions
diff --git a/toys/other/vconfig.c b/toys/other/vconfig.c
index 92d9d7f0..18225fc4 100644
--- a/toys/other/vconfig.c
+++ b/toys/other/vconfig.c
@@ -1,6 +1,4 @@
-/* vi: set sw=4 ts=4:
- *
- * vconfig.c - Creates virtual ethernet devices.
+/* vconfig.c - Creates virtual ethernet devices.
*
* Copyright 2012 Sandeep Sharma <sandeep.jack2756@gmail.com>, Kyungwan Han <asura321@gmail.com>
*
@@ -9,20 +7,19 @@
USE_VCONFIG(NEWTOY(vconfig, "<2>4", TOYFLAG_NEEDROOT|TOYFLAG_SBIN))
config VCONFIG
- bool "vconfig"
- default y
- help
- usage: vconfig COMMAND [OPTIONS]
+ 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
+ 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"
@@ -34,16 +31,15 @@ config VCONFIG
*/
static int strtol_range(char *str, int min, int max)
{
- char *endptr = NULL;
- errno = 0;
- long ret_value = strtol(str, &endptr, 10);
- if(errno) perror_exit("Invalid num %s", str);
- else {
- if(endptr && (*endptr != '\0' || endptr == str))
- perror_exit("Not a valid num %s", str);
- }
- if(ret_value >= min && ret_value <= max) return ret_value;
- else perror_exit("Number %s is not in valid [%d-%d] Range\n", str, min, max);
+ char *endptr = NULL;
+ errno = 0;
+ long ret_value = strtol(str, &endptr, 10);
+
+ if(errno) perror_exit("Invalid num %s", str);
+ else if(endptr && (*endptr != '\0' || endptr == str))
+ perror_exit("Not a valid num %s", str);
+ if(ret_value >= min && ret_value <= max) return ret_value;
+ else perror_exit("Number %s is not in valid [%d-%d] Range\n", str, min, max);
}
/*
* vconfig main function.
@@ -51,83 +47,84 @@ static int strtol_range(char *str, int min, int max)
void vconfig_main(void)
{
#define MAX_VLAN_ID 4094
- struct vlan_ioctl_args request;
- char *interface_name = NULL;
- unsigned int name_type = VLAN_NAME_TYPE_PLUS_VID;
- char *cmd;
- int fd = 0;
- int vlan_id = 0;
-
- if((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) perror_exit("Can't open socket"); //Use socket instead of open
- memset(&request, 0, sizeof(struct vlan_ioctl_args)); // Null set all the VLAN info's.
- cmd = toys.optargs[0]; // Fetch cmd and proceed.
- if(strcmp(cmd, "set_name_type") == 0) {
- if(strcmp(toys.optargs[1], "VLAN_PLUS_VID") == 0) {
- name_type = VLAN_NAME_TYPE_PLUS_VID;
- }
- else if(strcmp(toys.optargs[1], "VLAN_PLUS_VID_NO_PAD") == 0) {
- name_type = VLAN_NAME_TYPE_PLUS_VID_NO_PAD;
- }
- else if(strcmp(toys.optargs[1], "DEV_PLUS_VID") == 0) {
- name_type = VLAN_NAME_TYPE_RAW_PLUS_VID;
- }
- else if(strcmp(toys.optargs[1], "DEV_PLUS_VID_NO_PAD") == 0) {
- name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
- }
- else perror_exit("ERROR: Invalid name type");
-
- request.u.name_type = name_type;
- request.cmd = SET_VLAN_NAME_TYPE_CMD;
- if(ioctl(fd, SIOCSIFVLAN, &request) == 0) {
- xprintf("Successful set_name_type for VLAN subsystem\n");
- exit(EXIT_SUCCESS);
- }
- else perror_exit("Failed to set set_name_type:");
- }
- else {
- interface_name = toys.optargs[1]; // Store interface name.
- if(strlen(interface_name) > 15) perror_exit("ERROR:if_name length can not be greater than 15");
- strcpy(request.device1, interface_name); //we had exited if interface_name length greater than 15, so here it never overflows.
- }
+ struct vlan_ioctl_args request;
+ char *interface_name = NULL;
+ unsigned int name_type = VLAN_NAME_TYPE_PLUS_VID;
+ char *cmd;
+ int fd = 0;
+ int vlan_id = 0;
- if(strcmp(cmd, "add") == 0) {
- request.cmd = ADD_VLAN_CMD;
- if(toys.optargs[2]) vlan_id = strtol_range(toys.optargs[2], 0, MAX_VLAN_ID);
- else vlan_id = 0;
- request.u.VID = vlan_id;
- }
- else if(strcmp(cmd, "rem") == 0) {
- request.cmd = DEL_VLAN_CMD;
- }
- else if(strcmp(cmd, "set_flag") == 0) {
- request.cmd = SET_VLAN_FLAG_CMD;
- if(toys.optargs[2]) request.u.flag = strtol_range(toys.optargs[2], 0, 1);
- else request.u.flag = 0;
- if(toys.optargs[3]) request.vlan_qos = strtol_range(toys.optargs[3], 0, 7);
- else request.vlan_qos = 0;
+ if((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) perror_exit("Can't open socket"); //Use socket instead of open
+ memset(&request, 0, sizeof(struct vlan_ioctl_args)); // Null set all the VLAN info's.
+ cmd = toys.optargs[0]; // Fetch cmd and proceed.
+ if(strcmp(cmd, "set_name_type") == 0) {
+ if(strcmp(toys.optargs[1], "VLAN_PLUS_VID") == 0) {
+ name_type = VLAN_NAME_TYPE_PLUS_VID;
}
- else if(strcmp(cmd, "set_egress_map") == 0) {
- request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
- if(toys.optargs[2]) request.u.skb_priority = strtol_range(toys.optargs[2], 0, INT_MAX);
- else request.u.skb_priority = 0;
- if(toys.optargs[3]) request.vlan_qos = strtol_range(toys.optargs[3], 0, 7);
- else request.vlan_qos = 0;
+ else if(strcmp(toys.optargs[1], "VLAN_PLUS_VID_NO_PAD") == 0) {
+ name_type = VLAN_NAME_TYPE_PLUS_VID_NO_PAD;
}
- else if(strcmp(cmd, "set_ingress_map") == 0) {
- request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
- if(toys.optargs[2]) request.u.skb_priority = strtol_range(toys.optargs[2], 0, INT_MAX);
- else request.u.skb_priority = 0;
- if(toys.optargs[3]) request.vlan_qos = strtol_range(toys.optargs[3], 0, 7); //To set flag we must have to set vlan_qos
- else request.vlan_qos = 0;
+ else if(strcmp(toys.optargs[1], "DEV_PLUS_VID") == 0) {
+ name_type = VLAN_NAME_TYPE_RAW_PLUS_VID;
}
- else {
- xclose(fd);
- perror_exit("Unknown command %s", cmd);
+ else if(strcmp(toys.optargs[1], "DEV_PLUS_VID_NO_PAD") == 0) {
+ name_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
}
+ else perror_exit("ERROR: Invalid name type");
+
+ request.u.name_type = name_type;
+ request.cmd = SET_VLAN_NAME_TYPE_CMD;
if(ioctl(fd, SIOCSIFVLAN, &request) == 0) {
- if(strcmp(cmd, "add") == 0 && vlan_id == 1)
- xprintf("WARNING: VLAN 1 does not work with many switches,consider another number if you have problems.\n");
- xprintf("Successful %s on device %s\n", cmd, interface_name);
+ xprintf("Successful set_name_type for VLAN subsystem\n");
+ exit(EXIT_SUCCESS);
}
- else perror_exit("Failed to %s, on vlan subsystem %s.", cmd, interface_name);
-}
+ else perror_exit("Failed to set set_name_type:");
+ }
+ else {
+ interface_name = toys.optargs[1]; // Store interface name.
+ if(strlen(interface_name) > 15) perror_exit("ERROR:if_name length can not be greater than 15");
+ strcpy(request.device1, interface_name); //we had exited if interface_name length greater than 15, so here it never overflows.
+ }
+
+ if(strcmp(cmd, "add") == 0) {
+ request.cmd = ADD_VLAN_CMD;
+ if(toys.optargs[2]) vlan_id = strtol_range(toys.optargs[2], 0, MAX_VLAN_ID);
+ else vlan_id = 0;
+ request.u.VID = vlan_id;
+ }
+ else if(strcmp(cmd, "rem") == 0) {
+ request.cmd = DEL_VLAN_CMD;
+ }
+ else if(strcmp(cmd, "set_flag") == 0) {
+ request.cmd = SET_VLAN_FLAG_CMD;
+ if(toys.optargs[2]) request.u.flag = strtol_range(toys.optargs[2], 0, 1);
+ else request.u.flag = 0;
+ if(toys.optargs[3]) request.vlan_qos = strtol_range(toys.optargs[3], 0, 7);
+ else request.vlan_qos = 0;
+ }
+ else if(strcmp(cmd, "set_egress_map") == 0) {
+ request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
+ if(toys.optargs[2]) request.u.skb_priority = strtol_range(toys.optargs[2], 0, INT_MAX);
+ else request.u.skb_priority = 0;
+ if(toys.optargs[3]) request.vlan_qos = strtol_range(toys.optargs[3], 0, 7);
+ else request.vlan_qos = 0;
+ }
+ else if(strcmp(cmd, "set_ingress_map") == 0) {
+ request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
+ if(toys.optargs[2]) request.u.skb_priority = strtol_range(toys.optargs[2], 0, INT_MAX);
+ else request.u.skb_priority = 0;
+ //To set flag we must have to set vlan_qos
+ if(toys.optargs[3]) request.vlan_qos = strtol_range(toys.optargs[3], 0, 7);
+ else request.vlan_qos = 0;
+ }
+ else {
+ xclose(fd);
+ perror_exit("Unknown command %s", cmd);
+ }
+ if(ioctl(fd, SIOCSIFVLAN, &request) == 0) {
+ if(strcmp(cmd, "add") == 0 && vlan_id == 1)
+ xprintf("WARNING: VLAN 1 does not work with many switches,consider another number if you have problems.\n");
+ xprintf("Successful %s on device %s\n", cmd, interface_name);
+ }
+ else perror_exit("Failed to %s, on vlan subsystem %s.", cmd, interface_name);
+}
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