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authorEric Andersen2003-01-23 05:59:32 +0000
committerEric Andersen2003-01-23 05:59:32 +0000
commit853c494efd7d4a3183918df69c21ceefc5ed7578 (patch)
tree98131f99d92b5e8e5af98f1946a84eb732b26c5c /networking/vconfig.c
parent97d86f2bb59751be52fb3ee5cdb8b06e7b3bb98f (diff)
downloadbusybox-853c494efd7d4a3183918df69c21ceefc5ed7578.zip
busybox-853c494efd7d4a3183918df69c21ceefc5ed7578.tar.gz
A patch from John F. Kelly to add in a utility for configuring
vlan under linux, derived from Ben Greear's VLAN "vconfig" tool.
Diffstat (limited to 'networking/vconfig.c')
-rw-r--r--networking/vconfig.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/networking/vconfig.c b/networking/vconfig.c
new file mode 100644
index 0000000..0ad759e
--- /dev/null
+++ b/networking/vconfig.c
@@ -0,0 +1,166 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <strings.h>
+#include <sys/ioctl.h>
+#include <linux/if_vlan.h>
+#include <linux/sockios.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include "busybox.h"
+
+
+
+int vconfig_main(int argc, char** argv) {
+ int fd;
+ struct vlan_ioctl_args if_request;
+
+ char* cmd = NULL;
+ char* if_name = NULL;
+ unsigned int vid = 0;
+ unsigned int skb_priority;
+ unsigned short vlan_qos;
+ unsigned int nm_type = VLAN_NAME_TYPE_PLUS_VID;
+
+ char* conf_file_name = "/proc/net/vlan/config";
+
+ memset(&if_request, 0, sizeof(struct vlan_ioctl_args));
+
+ if ((argc < 3) || (argc > 5)) {
+ error_msg_and_die("Expecting argc to be 3-5, inclusive. Was: %d\n",argc);
+ }
+ else {
+ cmd = argv[1];
+
+ if (strcasecmp(cmd, "set_name_type") == 0) {
+ if (strcasecmp(argv[2], "VLAN_PLUS_VID") == 0) {
+ nm_type = VLAN_NAME_TYPE_PLUS_VID;
+ }
+ else if (strcasecmp(argv[2], "VLAN_PLUS_VID_NO_PAD") == 0) {
+ nm_type = VLAN_NAME_TYPE_PLUS_VID_NO_PAD;
+ }
+ else if (strcasecmp(argv[2], "DEV_PLUS_VID") == 0) {
+ nm_type = VLAN_NAME_TYPE_RAW_PLUS_VID;
+ }
+ else if (strcasecmp(argv[2], "DEV_PLUS_VID_NO_PAD") == 0) {
+ nm_type = VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD;
+ }
+ else {
+ error_msg_and_die("Invalid name type.\n");
+ }
+ if_request.u.name_type = nm_type;
+ }
+ else {
+ if_name = argv[2];
+ if (strlen(if_name) > 15) {
+ error_msg_and_die("ERROR: if_name must be 15 characters or less.\n");
+ }
+ strcpy(if_request.device1, if_name);
+ }
+
+ if (argc == 4) {
+ vid = atoi(argv[3]);
+ if_request.u.VID = vid;
+ }
+
+ if (argc == 5) {
+ skb_priority = atoi(argv[3]);
+ vlan_qos = atoi(argv[4]);
+ if_request.u.skb_priority = skb_priority;
+ if_request.vlan_qos = vlan_qos;
+ }
+ }
+
+ // Open up the /proc/vlan/config
+ if ((fd = open(conf_file_name, O_RDONLY)) < 0) {
+ 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");
+ }
+ else {
+ close(fd);
+ }
+
+ /* We use sockets now, instead of the file descriptor */
+ if ((fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+ error_msg_and_die("FATAL: Couldn't open a socket..go figure!\n");
+ }
+
+ /* add */
+ if (strcasecmp(cmd, "add") == 0) {
+ if_request.cmd = ADD_VLAN_CMD;
+ if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
+ error_msg("ERROR: trying to add VLAN #%u to IF -:%s:- error: %s\n",
+ vid, if_name, strerror(errno));
+ }
+ else {
+ printf("Added VLAN with VID == %u to IF -:%s:-\n", vid, if_name);
+ if (vid == 1) {
+ error_msg("WARNING: VLAN 1 does not work with many switches,\nconsider another number if you have problems.\n");
+ }
+ }
+ }//if
+ else if (strcasecmp(cmd, "rem") == 0) {
+ if_request.cmd = DEL_VLAN_CMD;
+ if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
+ error_msg("ERROR: trying to remove VLAN -:%s:- error: %s\n",
+ if_name, strerror(errno));
+ }
+ else {
+ printf("Removed VLAN -:%s:-\n", if_name);
+ }
+ }//if
+ else if (strcasecmp(cmd, "set_egress_map") == 0) {
+ if_request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
+ if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
+ error_msg("ERROR: trying to set egress map on device -:%s:- error: %s\n",
+ if_name, strerror(errno));
+ }
+ else {
+ printf("Set egress mapping on device -:%s:- "
+ "Should be visible in /proc/net/vlan/%s\n",
+ if_name, if_name);
+ }
+ }
+ else if (strcasecmp(cmd, "set_ingress_map") == 0) {
+ if_request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
+ if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
+ error_msg("ERROR: trying to set ingress map on device -:%s:- error: %s\n",
+ if_name, strerror(errno));
+ }
+ else {
+ printf("Set ingress mapping on device -:%s:- "
+ "Should be visible in /proc/net/vlan/%s\n",
+ if_name, if_name);
+ }
+ }
+ else if (strcasecmp(cmd, "set_flag") == 0) {
+ if_request.cmd = SET_VLAN_FLAG_CMD;
+ if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
+ error_msg("ERROR: trying to set flag on device -:%s:- error: %s\n",
+ if_name, strerror(errno));
+ }
+ else {
+ printf("Set flag on device -:%s:- "
+ "Should be visible in /proc/net/vlan/%s\n",
+ if_name, if_name);
+ }
+ }
+ else if (strcasecmp(cmd, "set_name_type") == 0) {
+ if_request.cmd = SET_VLAN_NAME_TYPE_CMD;
+ if (ioctl(fd, SIOCSIFVLAN, &if_request) < 0) {
+ error_msg("ERROR: trying to set name type for VLAN subsystem, error: %s\n",
+ strerror(errno));
+ }
+ else {
+ printf("Set name-type for VLAN subsystem."
+ " Should be visible in /proc/net/vlan/config\n");
+ }
+ }
+ else {
+ error_msg_and_die("Unknown command -:%s:-\n", cmd);
+ }
+
+ return 0;
+}/* main */