/* 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] 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] */ #include "toys.h" #include <linux/if_vlan.h> #include <linux/sockios.h> 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]; 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], 16); if (!strcmp(cmd, "add")) { request.cmd = ADD_VLAN_CMD; if (toys.optargs[2]) request.u.VID = atolx_range(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 = atolx_range(toys.optargs[2], 0, 1); if (toys.optargs[3]) request.vlan_qos = atolx_range(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 = atolx_range(toys.optargs[2], 0, INT_MAX); if (toys.optargs[3]) request.vlan_qos = atolx_range(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 = atolx_range(toys.optargs[2], 0, INT_MAX); //To set flag we must have to set vlan_qos if (toys.optargs[3]) request.vlan_qos = atolx_range(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]); }