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annotate toys/other/vconfig.c @ 1333:fc1bb49e58a9 draft

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Help text should have a blank line after usage: lines, and a couple other whitespace tweaks.
author Rob Landley <rob@landley.net>
date Mon, 02 Jun 2014 21:16:20 -0500
parents 160ea67a200d
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* vconfig.c - Creates virtual ethernet devices.
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2 *
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3 * Copyright 2012 Sandeep Sharma <sandeep.jack2756@gmail.com>
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4 * Copyright 2012 Kyungwan Han <asura321@gmail.com>
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5 *
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6 * No standard
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7
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8 USE_VCONFIG(NEWTOY(vconfig, "<2>4", TOYFLAG_NEEDROOT|TOYFLAG_SBIN))
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9
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10 config VCONFIG
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11 bool "vconfig"
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12 default y
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13 help
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14 usage: vconfig COMMAND [OPTIONS]
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15
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16 Create and remove virtual ethernet devices
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17
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18 add [interface-name] [vlan_id]
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19 rem [vlan-name]
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20 set_flag [interface-name] [flag-num] [0 | 1]
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21 set_egress_map [vlan-name] [skb_priority] [vlan_qos]
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22 set_ingress_map [vlan-name] [skb_priority] [vlan_qos]
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23 set_name_type [name-type]
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24 */
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25
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26 #include "toys.h"
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27 #include <linux/if_vlan.h>
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28 #include <linux/sockios.h>
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29
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30 void vconfig_main(void)
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31 {
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32 struct vlan_ioctl_args request;
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33 char *cmd;
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34 int fd;
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35
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36 fd = xsocket(AF_INET, SOCK_STREAM, 0);
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37 memset(&request, 0, sizeof(struct vlan_ioctl_args));
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38 cmd = toys.optargs[0];
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39
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40 if (!strcmp(cmd, "set_name_type")) {
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41 char *types[] = {"VLAN_PLUS_VID", "DEV_PLUS_VID", "VLAN_PLUS_VID_NO_PAD",
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42 "DEV_PLUS_VID_NO_PAD"};
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43 int i, j = sizeof(types)/sizeof(*types);
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44
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45 for (i=0; i<j; i++) if (!strcmp(toys.optargs[1], types[i])) break;
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46 if (i == j) {
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47 for (i=0; i<j; i++) puts(types[i]);
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48 error_exit("%s: unknown '%s'", cmd, toys.optargs[1]);
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49 }
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50
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51 request.u.name_type = i;
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52 request.cmd = SET_VLAN_NAME_TYPE_CMD;
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53 xioctl(fd, SIOCSIFVLAN, &request);
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54 return;
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55 }
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56
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57 // Store interface name
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58 xstrncpy(request.device1, toys.optargs[1], 16);
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59
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60 if (!strcmp(cmd, "add")) {
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61 request.cmd = ADD_VLAN_CMD;
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62 if (toys.optargs[2]) request.u.VID = atolx_range(toys.optargs[2], 0, 4094);
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63 if (request.u.VID == 1)
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64 xprintf("WARNING: VLAN 1 does not work with many switches.\n");
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65 } else if (!strcmp(cmd, "rem")) request.cmd = DEL_VLAN_CMD;
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66 else if (!strcmp(cmd, "set_flag")) {
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67 request.cmd = SET_VLAN_FLAG_CMD;
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68 if (toys.optargs[2]) request.u.flag = atolx_range(toys.optargs[2], 0, 1);
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69 if (toys.optargs[3]) request.vlan_qos = atolx_range(toys.optargs[3], 0, 7);
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70 } else if(strcmp(cmd, "set_egress_map") == 0) {
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71 request.cmd = SET_VLAN_EGRESS_PRIORITY_CMD;
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72 if (toys.optargs[2])
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73 request.u.skb_priority = atolx_range(toys.optargs[2], 0, INT_MAX);
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74 if (toys.optargs[3]) request.vlan_qos = atolx_range(toys.optargs[3], 0, 7);
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75 } else if(strcmp(cmd, "set_ingress_map") == 0) {
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76 request.cmd = SET_VLAN_INGRESS_PRIORITY_CMD;
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77 if (toys.optargs[2])
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78 request.u.skb_priority = atolx_range(toys.optargs[2], 0, INT_MAX);
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79 //To set flag we must have to set vlan_qos
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80 if (toys.optargs[3]) request.vlan_qos = atolx_range(toys.optargs[3], 0, 7);
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81 } else {
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82 xclose(fd);
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83 perror_exit("Unknown command %s", cmd);
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84 }
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85
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86 xioctl(fd, SIOCSIFVLAN, &request);
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87 xprintf("Successful %s on device %s\n", cmd, toys.optargs[1]);
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88 }