iplink.c revision ace9c96121b10ff8f91d79b7486bb8a5520c12df
1aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger/* 2aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * iplink.c "ip link". 3aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 4aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * This program is free software; you can redistribute it and/or 5aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * modify it under the terms of the GNU General Public License 6aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * as published by the Free Software Foundation; either version 7aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 2 of the License, or (at your option) any later version. 8aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 9aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> 10aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger * 11aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger */ 12aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 13aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <stdio.h> 14aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <stdlib.h> 15aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <unistd.h> 16aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <syslog.h> 17aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <fcntl.h> 181d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#include <dlfcn.h> 19aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <errno.h> 20aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <sys/socket.h> 21aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <linux/if.h> 22aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <linux/if_packet.h> 23aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <linux/if_ether.h> 24aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <linux/sockios.h> 25aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <netinet/in.h> 26aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <arpa/inet.h> 27aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <string.h> 28aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <sys/ioctl.h> 29aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include <linux/sockios.h> 30aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 31aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "rt_names.h" 32aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "utils.h" 33aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#include "ip_common.h" 34aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 351d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#define IPLINK_IOCTL_COMPAT 1 365e3bb534ae179be141a92eb1a4e2eb48094193b7Andreas Henriksson#ifndef LIBDIR 375e3bb534ae179be141a92eb1a4e2eb48094193b7Andreas Henriksson#define LIBDIR "/usr/lib/" 38b514b3587ee56552fcc87a066c955a7ff4f55d6fRafael Almeida#endif 39aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 40aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic void usage(void) __attribute__((noreturn)); 41750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemmingerstatic int iplink_have_newlink(void); 42aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 43aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingervoid iplink_usage(void) 44aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 45750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger if (iplink_have_newlink()) { 46750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, "Usage: ip link add link DEV [ name ] NAME\n"); 47750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ txqueuelen PACKETS ]\n"); 48750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ address LLADDR ]\n"); 49750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ broadcast LLADDR ]\n"); 50750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ mtu MTU ]\n"); 51750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " type TYPE [ ARGS ]\n"); 52750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " ip link delete DEV type TYPE [ ARGS ]\n"); 53750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, "\n"); 54750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " ip link set DEVICE [ { up | down } ]\n"); 55750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger } else 56750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, "Usage: ip link set DEVICE [ { up | down } ]\n"); 57750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger 58750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ arp { on | off } ]\n"); 59750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ dynamic { on | off } ]\n"); 60750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ multicast { on | off } ]\n"); 61750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ allmulticast { on | off } ]\n"); 62750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ promisc { on | off } ]\n"); 63750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ trailers { on | off } ]\n"); 64750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ txqueuelen PACKETS ]\n"); 65750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ name NEWNAME ]\n"); 66750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ address LLADDR ]\n"); 67750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ broadcast LLADDR ]\n"); 68750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ mtu MTU ]\n"); 69750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, " [ netns PID ]\n"); 70ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger fprintf(stderr, " [ alias NAME ]\n"); 71aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, " ip link show [ DEVICE ]\n"); 72750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger 73750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger if (iplink_have_newlink()) { 74750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, "\n"); 75750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger fprintf(stderr, "TYPE := { vlan | veth | dummy | ifb | macvlan }\n"); 76750a405a5a6f6cdae7d14609b49051e59738177eStephen Hemminger } 77aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger exit(-1); 78aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 79aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 80aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic void usage(void) 81aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 82aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger iplink_usage(); 83aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 84aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 85aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int on_off(char *msg) 86aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 87aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Error: argument of \"%s\" must be \"on\" or \"off\"\n", msg); 88aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 89aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 90aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 911d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystatic void *BODY; /* cached dlopen(NULL) handle */ 921d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystatic struct link_util *linkutil_list; 931d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 941d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystruct link_util *get_link_kind(const char *id) 951d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy{ 961d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy void *dlh; 971d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy char buf[256]; 981d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct link_util *l; 991d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1001d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy for (l = linkutil_list; l; l = l->next) 1011d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(l->id, id) == 0) 1021d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return l; 1031d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1045e3bb534ae179be141a92eb1a4e2eb48094193b7Andreas Henriksson snprintf(buf, sizeof(buf), LIBDIR "/ip/link_%s.so", id); 1051d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy dlh = dlopen(buf, RTLD_LAZY); 1061d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (dlh == NULL) { 1071d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy /* look in current binary, only open once */ 1081d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy dlh = BODY; 1091d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (dlh == NULL) { 1101d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy dlh = BODY = dlopen(NULL, RTLD_LAZY); 1111d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (dlh == NULL) 1121d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return NULL; 1131d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 1141d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 1151d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1161d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy snprintf(buf, sizeof(buf), "%s_link_util", id); 1171d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy l = dlsym(dlh, buf); 1181d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (l == NULL) 1191d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return NULL; 1201d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1211d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy l->next = linkutil_list; 1221d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy linkutil_list = l; 1231d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return l; 1241d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy} 1251d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1261d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#if IPLINK_IOCTL_COMPAT 1271d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystatic int have_rtnl_newlink = -1; 1281d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1291d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystatic int accept_msg(const struct sockaddr_nl *who, 1301d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct nlmsghdr *n, void *arg) 1311d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy{ 1321d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(n); 1331d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 13466e529f579f45351828fc82d6ba2629cc6eb3dddPatrick McHardy if (n->nlmsg_type == NLMSG_ERROR && 13566e529f579f45351828fc82d6ba2629cc6eb3dddPatrick McHardy (err->error == -EOPNOTSUPP || err->error == -EINVAL)) 1361d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy have_rtnl_newlink = 0; 1371d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy else 1381d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy have_rtnl_newlink = 1; 1391d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return -1; 1401d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy} 1411d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1421d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystatic int iplink_have_newlink(void) 1431d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy{ 1441d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct { 1451d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct nlmsghdr n; 1461d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct ifinfomsg i; 1471d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy char buf[1024]; 1481d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } req; 1491d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1501d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (have_rtnl_newlink < 0) { 1511d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy memset(&req, 0, sizeof(req)); 1521d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1531d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); 1541d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy req.n.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK; 1551d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy req.n.nlmsg_type = RTM_NEWLINK; 1561d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy req.i.ifi_family = AF_UNSPEC; 1571d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1581d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy rtnl_send(&rth, (char *)&req.n, req.n.nlmsg_len); 1591d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy rtnl_listen(&rth, accept_msg, NULL); 1601d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 1611d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return have_rtnl_newlink; 1621d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy} 1631d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#else /* IPLINK_IOCTL_COMPAT */ 1641d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardystatic int iplink_have_newlink(void) 1651d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy{ 1661d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return 1; 1671d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy} 1681d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#endif /* ! IPLINK_IOCTL_COMPAT */ 1691d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 170909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanovstruct iplink_req { 171909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov struct nlmsghdr n; 172909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov struct ifinfomsg i; 173909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char buf[1024]; 174909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov}; 175909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov 176909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanovint iplink_parse(int argc, char **argv, struct iplink_req *req, 177909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char **name, char **type, char **link, char **dev) 1781d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy{ 179909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov int ret, len; 180909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char abuf[32]; 1811d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy int qlen = -1; 1821d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy int mtu = -1; 183e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery int netns = -1; 1841d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 185909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov ret = argc; 1861d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 1871d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy while (argc > 0) { 1881d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "up") == 0) { 189909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_UP; 190909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_UP; 1911d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "down") == 0) { 192909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_UP; 193909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_UP; 1941d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "name") == 0) { 1951d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 196909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov *name = *argv; 1971d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (matches(*argv, "link") == 0) { 1981d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 199909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov *link = *argv; 2001d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (matches(*argv, "address") == 0) { 2011d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 2021d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy len = ll_addr_a2n(abuf, sizeof(abuf), *argv); 203909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov addattr_l(&req->n, sizeof(*req), IFLA_ADDRESS, abuf, len); 2041d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (matches(*argv, "broadcast") == 0 || 205909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov strcmp(*argv, "brd") == 0) { 2061d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 2071d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy len = ll_addr_a2n(abuf, sizeof(abuf), *argv); 208909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov addattr_l(&req->n, sizeof(*req), IFLA_BROADCAST, abuf, len); 2091d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (matches(*argv, "txqueuelen") == 0 || 210909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov strcmp(*argv, "qlen") == 0 || 211909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov matches(*argv, "txqlen") == 0) { 2121d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 2131d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (qlen != -1) 2141d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy duparg("txqueuelen", *argv); 2151d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (get_integer(&qlen, *argv, 0)) 2161d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy invarg("Invalid \"txqueuelen\" value\n", *argv); 217909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov addattr_l(&req->n, sizeof(*req), IFLA_TXQLEN, &qlen, 4); 2181d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "mtu") == 0) { 2191d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 2201d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (mtu != -1) 2211d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy duparg("mtu", *argv); 2221d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (get_integer(&mtu, *argv, 0)) 2231d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy invarg("Invalid \"mtu\" value\n", *argv); 224909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov addattr_l(&req->n, sizeof(*req), IFLA_MTU, &mtu, 4); 225e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery } else if (strcmp(*argv, "netns") == 0) { 226e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery NEXT_ARG(); 227e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery if (netns != -1) 228e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery duparg("netns", *argv); 229e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery if (get_integer(&netns, *argv, 0)) 230e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery invarg("Invalid \"netns\" value\n", *argv); 231e2613dc8605e56dbc53890ebbae263f93610bd41Benjamin Thery addattr_l(&req->n, sizeof(*req), IFLA_NET_NS_PID, &netns, 4); 2321d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "multicast") == 0) { 2331d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 234909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_MULTICAST; 2351d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "on") == 0) { 236909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_MULTICAST; 2371d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "off") == 0) { 238909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_MULTICAST; 2391d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else 2401d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return on_off("multicast"); 2411d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "allmulticast") == 0) { 2421d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 243909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_ALLMULTI; 2441d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "on") == 0) { 245909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_ALLMULTI; 2461d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "off") == 0) { 247909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_ALLMULTI; 2481d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else 2491d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return on_off("allmulticast"); 2501d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "promisc") == 0) { 2511d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 252909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_PROMISC; 2531d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "on") == 0) { 254909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_PROMISC; 2551d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "off") == 0) { 256909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_PROMISC; 2571d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else 2581d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return on_off("promisc"); 2591d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "trailers") == 0) { 2601d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 261909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_NOTRAILERS; 2621d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "off") == 0) { 263909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_NOTRAILERS; 2641d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "on") == 0) { 265909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_NOTRAILERS; 2661d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else 2671d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return on_off("trailers"); 2681d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "arp") == 0) { 2691d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 270909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_NOARP; 2711d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "on") == 0) { 272909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_NOARP; 2731d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "off") == 0) { 274909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_NOARP; 2751d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else 2761d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return on_off("noarp"); 2771d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#ifdef IFF_DYNAMIC 2781d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (matches(*argv, "dynamic") == 0) { 2791d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 280909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_change |= IFF_DYNAMIC; 2811d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (strcmp(*argv, "on") == 0) { 282909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags |= IFF_DYNAMIC; 2831d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (strcmp(*argv, "off") == 0) { 284909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req->i.ifi_flags &= ~IFF_DYNAMIC; 2851d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else 2861d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return on_off("dynamic"); 2871d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#endif 2881d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (matches(*argv, "type") == 0) { 2891d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 290909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov *type = *argv; 2911d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy argc--; argv++; 2921d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy break; 293ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger } else if (matches(*argv, "alias") == 0) { 294ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger NEXT_ARG(); 295ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger addattr_l(&req->n, sizeof(*req), IFLA_IFALIAS, 296ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger *argv, strlen(*argv)); 297ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger argc--; argv++; 298ace9c96121b10ff8f91d79b7486bb8a5520c12dfStephen Hemminger break; 2991d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else { 300909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov if (strcmp(*argv, "dev") == 0) { 3011d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NEXT_ARG(); 3021d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 303053255520216654c6914e84b0a37e86c542898bdPatrick McHardy if (matches(*argv, "help") == 0) 304053255520216654c6914e84b0a37e86c542898bdPatrick McHardy usage(); 305909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov if (*dev) 3061d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy duparg2("dev", *argv); 307909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov *dev = *argv; 3081d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3091d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy argc--; argv++; 3101d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3111d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 312909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov return ret - argc; 313909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov} 314909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov 315909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanovstatic int iplink_modify(int cmd, unsigned int flags, int argc, char **argv) 316909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov{ 317909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov int len; 318909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char *dev = NULL; 319909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char *name = NULL; 320909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char *link = NULL; 321909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov char *type = NULL; 322909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov struct link_util *lu = NULL; 323909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov struct iplink_req req; 324909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov int ret; 325909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov 326909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov memset(&req, 0, sizeof(req)); 327909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov 328909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); 329909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req.n.nlmsg_flags = NLM_F_REQUEST|flags; 330909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req.n.nlmsg_type = cmd; 331909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov req.i.ifi_family = preferred_family; 332909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov 333909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov ret = iplink_parse(argc, argv, &req, &name, &type, &link, &dev); 334909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov if (ret < 0) 335909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov return ret; 336909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov 337909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov argc -= ret; 338909dfe2c7ebcfe853b2fe4f995be1c4681d5a2a5Pavel Emelyanov argv += ret; 3391d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy ll_init_map(&rth); 3401d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3411d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (type) { 3421d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct rtattr *linkinfo = NLMSG_TAIL(&req.n); 3431d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy addattr_l(&req.n, sizeof(req), IFLA_LINKINFO, NULL, 0); 3441d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type, 3451d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy strlen(type)); 3461d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3471d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy lu = get_link_kind(type); 3481d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (lu && argc) { 3491d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy struct rtattr * data = NLMSG_TAIL(&req.n); 3501d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy addattr_l(&req.n, sizeof(req), IFLA_INFO_DATA, NULL, 0); 3511d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3521d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (lu->parse_opt && 3531d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy lu->parse_opt(lu, argc, argv, &req.n)) 3541d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return -1; 3551d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3561d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy data->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)data; 3571d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else if (argc) { 3581d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (matches(*argv, "help") == 0) 3591d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy usage(); 3601d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy fprintf(stderr, "Garbage instead of arguments \"%s ...\". " 3611d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy "Try \"ip link help\".\n", *argv); 3621d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return -1; 3631d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3641d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy linkinfo->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)linkinfo; 3653ef0c8594283d4891e84b4b8d7d04901416aeae0Patrick McHardy } else if (flags & NLM_F_CREATE) { 3663ef0c8594283d4891e84b4b8d7d04901416aeae0Patrick McHardy fprintf(stderr, "Not enough information: \"type\" argument " 3673ef0c8594283d4891e84b4b8d7d04901416aeae0Patrick McHardy "is required\n"); 3683ef0c8594283d4891e84b4b8d7d04901416aeae0Patrick McHardy return -1; 3691d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3701d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3711d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (!(flags & NLM_F_CREATE)) { 3721d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (!dev) { 3731d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy fprintf(stderr, "Not enough information: \"dev\" " 3741d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy "argument is required.\n"); 3751d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy exit(-1); 3761d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3771d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3781d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy req.i.ifi_index = ll_name_to_index(dev); 3791d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (req.i.ifi_index == 0) { 3801d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy fprintf(stderr, "Cannot find device \"%s\"\n", dev); 3811d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return -1; 3821d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3831d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else { 3841d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy /* Allow "ip link add dev" and "ip link add name" */ 3851d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (!name) 3861d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy name = dev; 3871d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3881d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (link) { 3891d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy int ifindex; 3901d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 3911d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy ifindex = ll_name_to_index(link); 3921d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (ifindex == 0) { 3931d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy fprintf(stderr, "Cannot find device \"%s\"\n", 3941d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy link); 3951d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return -1; 3961d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3971d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy addattr_l(&req.n, sizeof(req), IFLA_LINK, &ifindex, 4); 3981d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 3991d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 4001d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 4011d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (name) { 4021d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy len = strlen(name) + 1; 403ca78b0e7d4042be7f7283d551d433b76da7f312bPatrick McHardy if (len == 1) 404ca78b0e7d4042be7f7283d551d433b76da7f312bPatrick McHardy invarg("\"\" is not a valid device identifier\n", "name"); 4051d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (len > IFNAMSIZ) 406ca78b0e7d4042be7f7283d551d433b76da7f312bPatrick McHardy invarg("\"name\" too long\n", name); 4071d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len); 4081d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 4091d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 4101d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0) 4111d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy exit(2); 4121d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 4131d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return 0; 4141d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy} 4151d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy 4161d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#if IPLINK_IOCTL_COMPAT 417aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int get_ctl_fd(void) 418aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 419aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int s_errno; 420aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int fd; 421aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 422aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fd = socket(PF_INET, SOCK_DGRAM, 0); 423aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (fd >= 0) 424aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return fd; 425aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger s_errno = errno; 426aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fd = socket(PF_PACKET, SOCK_DGRAM, 0); 427aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (fd >= 0) 428aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return fd; 429aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fd = socket(PF_INET6, SOCK_DGRAM, 0); 430aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (fd >= 0) 431aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return fd; 432aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger errno = s_errno; 433aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("Cannot create control socket"); 434aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 435aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 436aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 43771058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemmingerstatic int do_chflags(const char *dev, __u32 flags, __u32 mask) 438aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 439aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct ifreq ifr; 440aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int fd; 441aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int err; 442aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 44371058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemminger strncpy(ifr.ifr_name, dev, IFNAMSIZ); 444aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fd = get_ctl_fd(); 445aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (fd < 0) 446aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 447aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger err = ioctl(fd, SIOCGIFFLAGS, &ifr); 448aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (err) { 449aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("SIOCGIFFLAGS"); 450aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(fd); 451aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 452aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 453aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if ((ifr.ifr_flags^flags)&mask) { 454aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ifr.ifr_flags &= ~mask; 455aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ifr.ifr_flags |= mask&flags; 456aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger err = ioctl(fd, SIOCSIFFLAGS, &ifr); 457aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (err) 458aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("SIOCSIFFLAGS"); 459aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 460aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(fd); 461aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return err; 462aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 463aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 46471058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemmingerstatic int do_changename(const char *dev, const char *newdev) 465aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 466aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct ifreq ifr; 467aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int fd; 468aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int err; 469aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 47071058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemminger strncpy(ifr.ifr_name, dev, IFNAMSIZ); 47171058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemminger strncpy(ifr.ifr_newname, newdev, IFNAMSIZ); 472aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fd = get_ctl_fd(); 473aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (fd < 0) 474aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 475aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger err = ioctl(fd, SIOCSIFNAME, &ifr); 476aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (err) { 477aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("SIOCSIFNAME"); 478aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(fd); 479aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 480aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 481aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(fd); 482aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return err; 483aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 484aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 48571058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemmingerstatic int set_qlen(const char *dev, int qlen) 486aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 487aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct ifreq ifr; 488aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int s; 489aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 490aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger s = get_ctl_fd(); 491aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (s < 0) 492aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 493aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 494aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(&ifr, 0, sizeof(ifr)); 495ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger strncpy(ifr.ifr_name, dev, IFNAMSIZ); 496ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger ifr.ifr_qlen = qlen; 497aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (ioctl(s, SIOCSIFTXQLEN, &ifr) < 0) { 498aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("SIOCSIFXQLEN"); 499aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 500aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 501aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 502aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 503aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 504ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return 0; 505aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 506aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 50771058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemmingerstatic int set_mtu(const char *dev, int mtu) 508aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 509aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct ifreq ifr; 510aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int s; 511aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 512aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger s = get_ctl_fd(); 513aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (s < 0) 514aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 515aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 516aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(&ifr, 0, sizeof(ifr)); 517ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger strncpy(ifr.ifr_name, dev, IFNAMSIZ); 518ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger ifr.ifr_mtu = mtu; 519aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (ioctl(s, SIOCSIFMTU, &ifr) < 0) { 520aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("SIOCSIFMTU"); 521aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 522aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 523aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 524aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 525aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 526ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return 0; 527aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 528aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 52971058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemmingerstatic int get_address(const char *dev, int *htype) 530aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 531aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct ifreq ifr; 532aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct sockaddr_ll me; 533f332d169246447bd5e258ac03d5ee840a70adb1eshemminger socklen_t alen; 534aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int s; 535aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 536aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger s = socket(PF_PACKET, SOCK_DGRAM, 0); 537ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger if (s < 0) { 538aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("socket(PF_PACKET)"); 539aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 540aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 541aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 542aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(&ifr, 0, sizeof(ifr)); 54371058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemminger strncpy(ifr.ifr_name, dev, IFNAMSIZ); 544aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) { 545aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("SIOCGIFINDEX"); 546aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 547aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 548aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 549aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 550aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(&me, 0, sizeof(me)); 551aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger me.sll_family = AF_PACKET; 552aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger me.sll_ifindex = ifr.ifr_ifindex; 553aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger me.sll_protocol = htons(ETH_P_LOOP); 554aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (bind(s, (struct sockaddr*)&me, sizeof(me)) == -1) { 555aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("bind"); 556aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 557aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 558aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 559aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 560aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger alen = sizeof(me); 561aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (getsockname(s, (struct sockaddr*)&me, &alen) == -1) { 562aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror("getsockname"); 563aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 564aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 565aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 566aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 567aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger *htype = me.sll_hatype; 568aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return me.sll_halen; 569aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 570aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 571ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemmingerstatic int parse_address(const char *dev, int hatype, int halen, 5727b5657545dc246ae37690d660597e8fa37040205shemminger char *lla, struct ifreq *ifr) 573aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 574aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int alen; 575aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 576aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger memset(ifr, 0, sizeof(*ifr)); 57771058eb8ef128aa99666dc4e6664e7632e12a1b9osdl.net!shemminger strncpy(ifr->ifr_name, dev, IFNAMSIZ); 578aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger ifr->ifr_hwaddr.sa_family = hatype; 579aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger alen = ll_addr_a2n(ifr->ifr_hwaddr.sa_data, 14, lla); 580aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (alen < 0) 581aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 582aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (alen != halen) { 583aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Wrong address (%s) length: expected %d bytes\n", lla, halen); 584aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 585aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 586ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return 0; 587aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 588aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 589aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int set_address(struct ifreq *ifr, int brd) 590aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 591aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int s; 592aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 593aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger s = get_ctl_fd(); 594aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (s < 0) 595aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 596aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (ioctl(s, brd?SIOCSIFHWBROADCAST:SIOCSIFHWADDR, ifr) < 0) { 597aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger perror(brd?"SIOCSIFHWBROADCAST":"SIOCSIFHWADDR"); 598aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 599aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 600aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 601aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger close(s); 602ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return 0; 603aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 604aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 605aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 606aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerstatic int do_set(int argc, char **argv) 607aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 608aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger char *dev = NULL; 609aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger __u32 mask = 0; 610aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger __u32 flags = 0; 611aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int qlen = -1; 612aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int mtu = -1; 613aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger char *newaddr = NULL; 614aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger char *newbrd = NULL; 615aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger struct ifreq ifr0, ifr1; 616aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger char *newname = NULL; 617aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger int htype, halen; 618aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 619aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger while (argc > 0) { 620aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (strcmp(*argv, "up") == 0) { 621aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger mask |= IFF_UP; 622aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags |= IFF_UP; 623aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "down") == 0) { 624aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger mask |= IFF_UP; 625aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags &= ~IFF_UP; 626aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "name") == 0) { 627aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 628aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger newname = *argv; 629aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (matches(*argv, "address") == 0) { 630aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 631aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger newaddr = *argv; 632aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (matches(*argv, "broadcast") == 0 || 633aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger strcmp(*argv, "brd") == 0) { 634aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 635aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger newbrd = *argv; 636aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (matches(*argv, "txqueuelen") == 0 || 637aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger strcmp(*argv, "qlen") == 0 || 638aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger matches(*argv, "txqlen") == 0) { 639aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 640aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (qlen != -1) 641aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger duparg("txqueuelen", *argv); 642aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_integer(&qlen, *argv, 0)) 643aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger invarg("Invalid \"txqueuelen\" value\n", *argv); 644aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "mtu") == 0) { 645aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 646aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (mtu != -1) 647aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger duparg("mtu", *argv); 648aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (get_integer(&mtu, *argv, 0)) 649aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger invarg("Invalid \"mtu\" value\n", *argv); 650aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "multicast") == 0) { 651aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 652aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger mask |= IFF_MULTICAST; 653aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (strcmp(*argv, "on") == 0) { 654aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags |= IFF_MULTICAST; 655aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "off") == 0) { 656aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags &= ~IFF_MULTICAST; 657aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else 658aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return on_off("multicast"); 659d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else if (strcmp(*argv, "allmulticast") == 0) { 660d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger NEXT_ARG(); 661d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger mask |= IFF_ALLMULTI; 662d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger if (strcmp(*argv, "on") == 0) { 663d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger flags |= IFF_ALLMULTI; 664d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else if (strcmp(*argv, "off") == 0) { 665d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger flags &= ~IFF_ALLMULTI; 666d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else 667d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger return on_off("allmulticast"); 668d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else if (strcmp(*argv, "promisc") == 0) { 669d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger NEXT_ARG(); 670d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger mask |= IFF_PROMISC; 671d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger if (strcmp(*argv, "on") == 0) { 672d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger flags |= IFF_PROMISC; 673d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else if (strcmp(*argv, "off") == 0) { 674d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger flags &= ~IFF_PROMISC; 675d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else 676d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger return on_off("promisc"); 677d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else if (strcmp(*argv, "trailers") == 0) { 678d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger NEXT_ARG(); 679d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger mask |= IFF_NOTRAILERS; 680d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger if (strcmp(*argv, "off") == 0) { 681d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger flags |= IFF_NOTRAILERS; 682d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else if (strcmp(*argv, "on") == 0) { 683d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger flags &= ~IFF_NOTRAILERS; 684d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger } else 685d27b1b5b41659d7b62f2e9f5213ffcefcad9753cnet[shemminger]!shemminger return on_off("trailers"); 686aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "arp") == 0) { 687aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 688aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger mask |= IFF_NOARP; 689aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (strcmp(*argv, "on") == 0) { 690aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags &= ~IFF_NOARP; 691aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "off") == 0) { 692aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags |= IFF_NOARP; 693aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else 694aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return on_off("noarp"); 695aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#ifdef IFF_DYNAMIC 696aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (matches(*argv, "dynamic") == 0) { 697aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 698aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger mask |= IFF_DYNAMIC; 699aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (strcmp(*argv, "on") == 0) { 700aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags |= IFF_DYNAMIC; 701aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else if (strcmp(*argv, "off") == 0) { 702aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger flags &= ~IFF_DYNAMIC; 703aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else 704aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return on_off("dynamic"); 705aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger#endif 706aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else { 707aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (strcmp(*argv, "dev") == 0) { 708aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger NEXT_ARG(); 709aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 710aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (matches(*argv, "help") == 0) 711aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger usage(); 712aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (dev) 713aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger duparg2("dev", *argv); 714aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger dev = *argv; 715aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 716aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger argc--; argv++; 717aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 718aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 719aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (!dev) { 720aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Not enough of information: \"dev\" argument is required.\n"); 721aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger exit(-1); 722aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 723aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 724aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newaddr || newbrd) { 725aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger halen = get_address(dev, &htype); 726aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (halen < 0) 727aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 728aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newaddr) { 729aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (parse_address(dev, htype, halen, newaddr, &ifr0) < 0) 730aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 731aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 732aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newbrd) { 733aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (parse_address(dev, htype, halen, newbrd, &ifr1) < 0) 734ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return -1; 735aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 736aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 737aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 738aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newname && strcmp(dev, newname)) { 739ca78b0e7d4042be7f7283d551d433b76da7f312bPatrick McHardy if (strlen(newname) == 0) 740ca78b0e7d4042be7f7283d551d433b76da7f312bPatrick McHardy invarg("\"\" is not a valid device identifier\n", "name"); 741aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (do_changename(dev, newname) < 0) 742aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 743aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger dev = newname; 744aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 745ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger if (qlen != -1) { 746aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (set_qlen(dev, qlen) < 0) 747ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return -1; 748aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 749ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger if (mtu != -1) { 750aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (set_mtu(dev, mtu) < 0) 751ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return -1; 752aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 753aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newaddr || newbrd) { 754aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newbrd) { 755aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (set_address(&ifr1, 1) < 0) 756ae665a522bd46bea44c5ea84c89c8b1731954170Stephen Hemminger return -1; 757aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 758aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (newaddr) { 759aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (set_address(&ifr0, 0) < 0) 760aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return -1; 761aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 762aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } 763aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (mask) 764aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return do_chflags(dev, flags, mask); 765aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return 0; 766aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 7671d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#endif /* IPLINK_IOCTL_COMPAT */ 768aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 769aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemmingerint do_iplink(int argc, char **argv) 770aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger{ 771aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (argc > 0) { 7721d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (iplink_have_newlink()) { 7731d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (matches(*argv, "add") == 0) 7741d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return iplink_modify(RTM_NEWLINK, 7751d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NLM_F_CREATE|NLM_F_EXCL, 7761d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy argc-1, argv+1); 7771d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (matches(*argv, "set") == 0 || 7781d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy matches(*argv, "change") == 0) 7791d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return iplink_modify(RTM_NEWLINK, 0, 7801d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy argc-1, argv+1); 7811d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (matches(*argv, "replace") == 0) 7821d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return iplink_modify(RTM_NEWLINK, 7831d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy NLM_F_CREATE|NLM_F_REPLACE, 7841d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy argc-1, argv+1); 7851d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (matches(*argv, "delete") == 0) 7861d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return iplink_modify(RTM_DELLINK, 0, 7871d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy argc-1, argv+1); 7881d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } else { 7891d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#if IPLINK_IOCTL_COMPAT 7901d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy if (matches(*argv, "set") == 0) 7911d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy return do_set(argc-1, argv+1); 7921d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy#endif 7931d93483985f0aa2d2afc72dde5179ff3f79a0999Patrick McHardy } 794aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (matches(*argv, "show") == 0 || 795aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger matches(*argv, "lst") == 0 || 796aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger matches(*argv, "list") == 0) 797aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return ipaddr_list_link(argc-1, argv+1); 798aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger if (matches(*argv, "help") == 0) 799aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger usage(); 800aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger } else 801aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger return ipaddr_list_link(0, NULL); 802aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger 803aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n", *argv); 804aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger exit(-1); 805aba5acdfdb347d2c21fc67d613d83d4430ca3937osdl.org!shemminger} 806