1/* vconfig.c - Creates virtual ethernet devices.
2 *
3 * Copyright 2012 Sandeep Sharma <sandeep.jack2756@gmail.com>
4 * Copyright 2012 Kyungwan Han <asura321@gmail.com>
5 *
6 * No standard
7 *
8 * TODO: cleanup
9
10USE_VCONFIG(NEWTOY(vconfig, "<2>4", TOYFLAG_NEEDROOT|TOYFLAG_SBIN))
11
12config VCONFIG
13  bool "vconfig"
14  default y
15  help
16    usage: vconfig COMMAND [OPTIONS]
17
18    Create and remove virtual ethernet devices
19
20    add             [interface-name] [vlan_id]
21    rem             [vlan-name]
22    set_flag        [interface-name] [flag-num]       [0 | 1]
23    set_egress_map  [vlan-name]      [skb_priority]   [vlan_qos]
24    set_ingress_map [vlan-name]      [skb_priority]   [vlan_qos]
25    set_name_type   [name-type]
26*/
27
28#include "toys.h"
29#include <linux/if_vlan.h>
30#include <linux/sockios.h>
31
32void vconfig_main(void)
33{
34  struct vlan_ioctl_args request;
35  char *cmd;
36  int fd;
37
38  fd = xsocket(AF_INET, SOCK_STREAM, 0);
39  memset(&request, 0, sizeof(struct vlan_ioctl_args));
40  cmd = toys.optargs[0];
41
42  if (!strcmp(cmd, "set_name_type")) {
43    char *types[] = {"VLAN_PLUS_VID", "DEV_PLUS_VID", "VLAN_PLUS_VID_NO_PAD",
44                     "DEV_PLUS_VID_NO_PAD"};
45    int i, j = sizeof(types)/sizeof(*types);
46
47    for (i=0; i<j; i++) if (!strcmp(toys.optargs[1], types[i])) break;
48    if (i == j) {
49      for (i=0; i<j; i++) puts(types[i]);
50      error_exit("%s: unknown '%s'", cmd, toys.optargs[1]);
51    }
52
53    request.u.name_type = i;
54    request.cmd = SET_VLAN_NAME_TYPE_CMD;
55    xioctl(fd, SIOCSIFVLAN, &request);
56    return;
57  }
58
59  // Store interface name
60  xstrncpy(request.device1, toys.optargs[1], 16);
61
62  if (!strcmp(cmd, "add")) {
63    request.cmd = ADD_VLAN_CMD;
64    if (toys.optargs[2]) request.u.VID = atolx_range(toys.optargs[2], 0, 4094);
65    if (request.u.VID == 1)
66      xprintf("WARNING: VLAN 1 does not work with many switches.\n");
67  } else if (!strcmp(cmd, "rem")) request.cmd = DEL_VLAN_CMD;
68  else if (!strcmp(cmd, "set_flag")) {
69    request.cmd = SET_VLAN_FLAG_CMD;
70    if (toys.optargs[2]) request.u.flag = atolx_range(toys.optargs[2], 0, 1);
71    if (toys.optargs[3]) request.vlan_qos = atolx_range(toys.optargs[3], 0, 7);
72  } else if(strcmp(cmd, "set_egress_map") == 0) {
73    request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
74    if (toys.optargs[2])
75      request.u.skb_priority = atolx_range(toys.optargs[2], 0, INT_MAX);
76    if (toys.optargs[3]) request.vlan_qos = atolx_range(toys.optargs[3], 0, 7);
77  } else if(strcmp(cmd, "set_ingress_map") == 0) {
78    request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
79    if (toys.optargs[2])
80      request.u.skb_priority = atolx_range(toys.optargs[2], 0, INT_MAX);
81    //To set flag we must have to set vlan_qos
82    if (toys.optargs[3]) request.vlan_qos = atolx_range(toys.optargs[3], 0, 7);
83  } else {
84    xclose(fd);
85    perror_exit("Unknown command %s", cmd);
86  }
87
88  xioctl(fd, SIOCSIFVLAN, &request);
89  xprintf("Successful %s on device %s\n", cmd, toys.optargs[1]);
90}
91