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https://git.proxmox.com/git/mirror_iproute2
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b514b3587e
After changing the DESTDIR the installated binaries have some issues due to hard coded paths. For example, using distributions on NetEm would segfault. I've changed iplink.c and tc_util.c so they are now aware of DESTDIR. Along with that change I needed to change the main Makefile so it defines the DESTDIR macro when calling gcc. I also changed the paths so that during the installation sbin, etc, share and lib directories are created directly inside of the DESTDIR, instead of creating a usr directory inside that. That's the behaviour of most packages out there, so I think most users will be expecting that to happen.
774 lines
18 KiB
C
774 lines
18 KiB
C
/*
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* iplink.c "ip link".
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <fcntl.h>
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#include <dlfcn.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <linux/if.h>
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#include <linux/if_packet.h>
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#include <linux/if_ether.h>
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#include <linux/sockios.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <linux/sockios.h>
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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#define IPLINK_IOCTL_COMPAT 1
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#ifndef DESTDIR
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#define DESTDIR "/usr/"
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#endif
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static void usage(void) __attribute__((noreturn));
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void iplink_usage(void)
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{
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fprintf(stderr, "Usage: ip link set DEVICE { up | down |\n");
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fprintf(stderr, " arp { on | off } |\n");
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fprintf(stderr, " dynamic { on | off } |\n");
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fprintf(stderr, " multicast { on | off } |\n");
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fprintf(stderr, " allmulticast { on | off } |\n");
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fprintf(stderr, " promisc { on | off } |\n");
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fprintf(stderr, " trailers { on | off } |\n");
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fprintf(stderr, " txqueuelen PACKETS |\n");
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fprintf(stderr, " name NEWNAME |\n");
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fprintf(stderr, " address LLADDR | broadcast LLADDR |\n");
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fprintf(stderr, " mtu MTU }\n");
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fprintf(stderr, " netns PID }\n");
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fprintf(stderr, " ip link show [ DEVICE ]\n");
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exit(-1);
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}
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static void usage(void)
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{
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iplink_usage();
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}
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static int on_off(char *msg)
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{
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fprintf(stderr, "Error: argument of \"%s\" must be \"on\" or \"off\"\n", msg);
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return -1;
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}
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static void *BODY; /* cached dlopen(NULL) handle */
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static struct link_util *linkutil_list;
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struct link_util *get_link_kind(const char *id)
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{
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void *dlh;
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char buf[256];
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struct link_util *l;
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for (l = linkutil_list; l; l = l->next)
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if (strcmp(l->id, id) == 0)
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return l;
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snprintf(buf, sizeof(buf), DESTDIR "/lib/ip/link_%s.so", id);
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dlh = dlopen(buf, RTLD_LAZY);
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if (dlh == NULL) {
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/* look in current binary, only open once */
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dlh = BODY;
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if (dlh == NULL) {
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dlh = BODY = dlopen(NULL, RTLD_LAZY);
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if (dlh == NULL)
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return NULL;
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}
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}
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snprintf(buf, sizeof(buf), "%s_link_util", id);
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l = dlsym(dlh, buf);
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if (l == NULL)
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return NULL;
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l->next = linkutil_list;
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linkutil_list = l;
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return l;
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}
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#if IPLINK_IOCTL_COMPAT
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static int have_rtnl_newlink = -1;
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static int accept_msg(const struct sockaddr_nl *who,
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struct nlmsghdr *n, void *arg)
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{
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struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(n);
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if (n->nlmsg_type == NLMSG_ERROR &&
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(err->error == -EOPNOTSUPP || err->error == -EINVAL))
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have_rtnl_newlink = 0;
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else
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have_rtnl_newlink = 1;
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return -1;
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}
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static int iplink_have_newlink(void)
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{
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struct {
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struct nlmsghdr n;
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struct ifinfomsg i;
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char buf[1024];
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} req;
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if (have_rtnl_newlink < 0) {
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memset(&req, 0, sizeof(req));
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req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
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req.n.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK;
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req.n.nlmsg_type = RTM_NEWLINK;
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req.i.ifi_family = AF_UNSPEC;
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rtnl_send(&rth, (char *)&req.n, req.n.nlmsg_len);
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rtnl_listen(&rth, accept_msg, NULL);
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}
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return have_rtnl_newlink;
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}
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#else /* IPLINK_IOCTL_COMPAT */
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static int iplink_have_newlink(void)
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{
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return 1;
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}
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#endif /* ! IPLINK_IOCTL_COMPAT */
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struct iplink_req {
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struct nlmsghdr n;
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struct ifinfomsg i;
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char buf[1024];
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};
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int iplink_parse(int argc, char **argv, struct iplink_req *req,
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char **name, char **type, char **link, char **dev)
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{
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int ret, len;
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char abuf[32];
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int qlen = -1;
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int mtu = -1;
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int netns = -1;
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ret = argc;
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while (argc > 0) {
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if (strcmp(*argv, "up") == 0) {
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req->i.ifi_change |= IFF_UP;
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req->i.ifi_flags |= IFF_UP;
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} else if (strcmp(*argv, "down") == 0) {
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req->i.ifi_change |= IFF_UP;
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req->i.ifi_flags &= ~IFF_UP;
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} else if (strcmp(*argv, "name") == 0) {
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NEXT_ARG();
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*name = *argv;
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} else if (matches(*argv, "link") == 0) {
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NEXT_ARG();
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*link = *argv;
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} else if (matches(*argv, "address") == 0) {
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NEXT_ARG();
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len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
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addattr_l(&req->n, sizeof(*req), IFLA_ADDRESS, abuf, len);
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} else if (matches(*argv, "broadcast") == 0 ||
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strcmp(*argv, "brd") == 0) {
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NEXT_ARG();
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len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
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addattr_l(&req->n, sizeof(*req), IFLA_BROADCAST, abuf, len);
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} else if (matches(*argv, "txqueuelen") == 0 ||
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strcmp(*argv, "qlen") == 0 ||
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matches(*argv, "txqlen") == 0) {
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NEXT_ARG();
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if (qlen != -1)
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duparg("txqueuelen", *argv);
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if (get_integer(&qlen, *argv, 0))
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invarg("Invalid \"txqueuelen\" value\n", *argv);
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addattr_l(&req->n, sizeof(*req), IFLA_TXQLEN, &qlen, 4);
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} else if (strcmp(*argv, "mtu") == 0) {
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NEXT_ARG();
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if (mtu != -1)
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duparg("mtu", *argv);
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if (get_integer(&mtu, *argv, 0))
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invarg("Invalid \"mtu\" value\n", *argv);
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addattr_l(&req->n, sizeof(*req), IFLA_MTU, &mtu, 4);
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} else if (strcmp(*argv, "netns") == 0) {
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NEXT_ARG();
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if (netns != -1)
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duparg("netns", *argv);
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if (get_integer(&netns, *argv, 0))
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invarg("Invalid \"netns\" value\n", *argv);
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addattr_l(&req->n, sizeof(*req), IFLA_NET_NS_PID, &netns, 4);
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} else if (strcmp(*argv, "multicast") == 0) {
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NEXT_ARG();
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req->i.ifi_change |= IFF_MULTICAST;
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if (strcmp(*argv, "on") == 0) {
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req->i.ifi_flags |= IFF_MULTICAST;
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} else if (strcmp(*argv, "off") == 0) {
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req->i.ifi_flags &= ~IFF_MULTICAST;
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} else
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return on_off("multicast");
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} else if (strcmp(*argv, "allmulticast") == 0) {
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NEXT_ARG();
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req->i.ifi_change |= IFF_ALLMULTI;
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if (strcmp(*argv, "on") == 0) {
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req->i.ifi_flags |= IFF_ALLMULTI;
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} else if (strcmp(*argv, "off") == 0) {
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req->i.ifi_flags &= ~IFF_ALLMULTI;
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} else
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return on_off("allmulticast");
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} else if (strcmp(*argv, "promisc") == 0) {
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NEXT_ARG();
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req->i.ifi_change |= IFF_PROMISC;
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if (strcmp(*argv, "on") == 0) {
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req->i.ifi_flags |= IFF_PROMISC;
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} else if (strcmp(*argv, "off") == 0) {
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req->i.ifi_flags &= ~IFF_PROMISC;
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} else
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return on_off("promisc");
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} else if (strcmp(*argv, "trailers") == 0) {
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NEXT_ARG();
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req->i.ifi_change |= IFF_NOTRAILERS;
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if (strcmp(*argv, "off") == 0) {
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req->i.ifi_flags |= IFF_NOTRAILERS;
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} else if (strcmp(*argv, "on") == 0) {
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req->i.ifi_flags &= ~IFF_NOTRAILERS;
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} else
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return on_off("trailers");
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} else if (strcmp(*argv, "arp") == 0) {
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NEXT_ARG();
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req->i.ifi_change |= IFF_NOARP;
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if (strcmp(*argv, "on") == 0) {
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req->i.ifi_flags &= ~IFF_NOARP;
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} else if (strcmp(*argv, "off") == 0) {
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req->i.ifi_flags |= IFF_NOARP;
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} else
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return on_off("noarp");
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#ifdef IFF_DYNAMIC
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} else if (matches(*argv, "dynamic") == 0) {
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NEXT_ARG();
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req->i.ifi_change |= IFF_DYNAMIC;
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if (strcmp(*argv, "on") == 0) {
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req->i.ifi_flags |= IFF_DYNAMIC;
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} else if (strcmp(*argv, "off") == 0) {
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req->i.ifi_flags &= ~IFF_DYNAMIC;
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} else
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return on_off("dynamic");
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#endif
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} else if (matches(*argv, "type") == 0) {
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NEXT_ARG();
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*type = *argv;
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argc--; argv++;
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break;
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} else {
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if (strcmp(*argv, "dev") == 0) {
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NEXT_ARG();
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}
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if (*dev)
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duparg2("dev", *argv);
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*dev = *argv;
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}
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argc--; argv++;
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}
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return ret - argc;
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}
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static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
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{
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int len;
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char *dev = NULL;
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char *name = NULL;
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char *link = NULL;
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char *type = NULL;
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struct link_util *lu = NULL;
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struct iplink_req req;
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int ret;
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memset(&req, 0, sizeof(req));
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req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
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req.n.nlmsg_flags = NLM_F_REQUEST|flags;
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req.n.nlmsg_type = cmd;
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req.i.ifi_family = preferred_family;
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ret = iplink_parse(argc, argv, &req, &name, &type, &link, &dev);
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if (ret < 0)
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return ret;
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argc -= ret;
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argv += ret;
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ll_init_map(&rth);
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if (type) {
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struct rtattr *linkinfo = NLMSG_TAIL(&req.n);
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addattr_l(&req.n, sizeof(req), IFLA_LINKINFO, NULL, 0);
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addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type,
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strlen(type));
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lu = get_link_kind(type);
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if (lu && argc) {
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struct rtattr * data = NLMSG_TAIL(&req.n);
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addattr_l(&req.n, sizeof(req), IFLA_INFO_DATA, NULL, 0);
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if (lu->parse_opt &&
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lu->parse_opt(lu, argc, argv, &req.n))
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return -1;
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data->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)data;
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} else if (argc) {
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if (matches(*argv, "help") == 0)
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usage();
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fprintf(stderr, "Garbage instead of arguments \"%s ...\". "
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"Try \"ip link help\".\n", *argv);
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return -1;
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}
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linkinfo->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)linkinfo;
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}
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if (!(flags & NLM_F_CREATE)) {
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if (!dev) {
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fprintf(stderr, "Not enough information: \"dev\" "
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"argument is required.\n");
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exit(-1);
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}
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req.i.ifi_index = ll_name_to_index(dev);
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if (req.i.ifi_index == 0) {
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fprintf(stderr, "Cannot find device \"%s\"\n", dev);
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return -1;
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}
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} else {
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/* Allow "ip link add dev" and "ip link add name" */
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if (!name)
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name = dev;
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if (link) {
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int ifindex;
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ifindex = ll_name_to_index(link);
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if (ifindex == 0) {
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fprintf(stderr, "Cannot find device \"%s\"\n",
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link);
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return -1;
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}
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addattr_l(&req.n, sizeof(req), IFLA_LINK, &ifindex, 4);
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}
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}
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if (name) {
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len = strlen(name) + 1;
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if (len == 1)
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invarg("\"\" is not a valid device identifier\n", "name");
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if (len > IFNAMSIZ)
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invarg("\"name\" too long\n", name);
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addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len);
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}
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if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
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exit(2);
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return 0;
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}
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#if IPLINK_IOCTL_COMPAT
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static int get_ctl_fd(void)
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{
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int s_errno;
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int fd;
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fd = socket(PF_INET, SOCK_DGRAM, 0);
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if (fd >= 0)
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return fd;
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s_errno = errno;
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fd = socket(PF_PACKET, SOCK_DGRAM, 0);
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if (fd >= 0)
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return fd;
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fd = socket(PF_INET6, SOCK_DGRAM, 0);
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if (fd >= 0)
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return fd;
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errno = s_errno;
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perror("Cannot create control socket");
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return -1;
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}
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static int do_chflags(const char *dev, __u32 flags, __u32 mask)
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{
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struct ifreq ifr;
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int fd;
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int err;
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strncpy(ifr.ifr_name, dev, IFNAMSIZ);
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fd = get_ctl_fd();
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if (fd < 0)
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return -1;
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err = ioctl(fd, SIOCGIFFLAGS, &ifr);
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if (err) {
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perror("SIOCGIFFLAGS");
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close(fd);
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return -1;
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}
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if ((ifr.ifr_flags^flags)&mask) {
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ifr.ifr_flags &= ~mask;
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ifr.ifr_flags |= mask&flags;
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err = ioctl(fd, SIOCSIFFLAGS, &ifr);
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if (err)
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perror("SIOCSIFFLAGS");
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}
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close(fd);
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return err;
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}
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static int do_changename(const char *dev, const char *newdev)
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{
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struct ifreq ifr;
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int fd;
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int err;
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strncpy(ifr.ifr_name, dev, IFNAMSIZ);
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strncpy(ifr.ifr_newname, newdev, IFNAMSIZ);
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fd = get_ctl_fd();
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if (fd < 0)
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return -1;
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err = ioctl(fd, SIOCSIFNAME, &ifr);
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if (err) {
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perror("SIOCSIFNAME");
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close(fd);
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return -1;
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}
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close(fd);
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return err;
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}
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static int set_qlen(const char *dev, int qlen)
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{
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struct ifreq ifr;
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int s;
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s = get_ctl_fd();
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if (s < 0)
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return -1;
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, dev, IFNAMSIZ);
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ifr.ifr_qlen = qlen;
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if (ioctl(s, SIOCSIFTXQLEN, &ifr) < 0) {
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perror("SIOCSIFXQLEN");
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close(s);
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return -1;
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}
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close(s);
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return 0;
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}
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static int set_mtu(const char *dev, int mtu)
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{
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struct ifreq ifr;
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int s;
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s = get_ctl_fd();
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if (s < 0)
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return -1;
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memset(&ifr, 0, sizeof(ifr));
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strncpy(ifr.ifr_name, dev, IFNAMSIZ);
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ifr.ifr_mtu = mtu;
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if (ioctl(s, SIOCSIFMTU, &ifr) < 0) {
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perror("SIOCSIFMTU");
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close(s);
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return -1;
|
|
}
|
|
close(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_address(const char *dev, int *htype)
|
|
{
|
|
struct ifreq ifr;
|
|
struct sockaddr_ll me;
|
|
socklen_t alen;
|
|
int s;
|
|
|
|
s = socket(PF_PACKET, SOCK_DGRAM, 0);
|
|
if (s < 0) {
|
|
perror("socket(PF_PACKET)");
|
|
return -1;
|
|
}
|
|
|
|
memset(&ifr, 0, sizeof(ifr));
|
|
strncpy(ifr.ifr_name, dev, IFNAMSIZ);
|
|
if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
|
|
perror("SIOCGIFINDEX");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
|
|
memset(&me, 0, sizeof(me));
|
|
me.sll_family = AF_PACKET;
|
|
me.sll_ifindex = ifr.ifr_ifindex;
|
|
me.sll_protocol = htons(ETH_P_LOOP);
|
|
if (bind(s, (struct sockaddr*)&me, sizeof(me)) == -1) {
|
|
perror("bind");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
|
|
alen = sizeof(me);
|
|
if (getsockname(s, (struct sockaddr*)&me, &alen) == -1) {
|
|
perror("getsockname");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
close(s);
|
|
*htype = me.sll_hatype;
|
|
return me.sll_halen;
|
|
}
|
|
|
|
static int parse_address(const char *dev, int hatype, int halen,
|
|
char *lla, struct ifreq *ifr)
|
|
{
|
|
int alen;
|
|
|
|
memset(ifr, 0, sizeof(*ifr));
|
|
strncpy(ifr->ifr_name, dev, IFNAMSIZ);
|
|
ifr->ifr_hwaddr.sa_family = hatype;
|
|
alen = ll_addr_a2n(ifr->ifr_hwaddr.sa_data, 14, lla);
|
|
if (alen < 0)
|
|
return -1;
|
|
if (alen != halen) {
|
|
fprintf(stderr, "Wrong address (%s) length: expected %d bytes\n", lla, halen);
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int set_address(struct ifreq *ifr, int brd)
|
|
{
|
|
int s;
|
|
|
|
s = get_ctl_fd();
|
|
if (s < 0)
|
|
return -1;
|
|
if (ioctl(s, brd?SIOCSIFHWBROADCAST:SIOCSIFHWADDR, ifr) < 0) {
|
|
perror(brd?"SIOCSIFHWBROADCAST":"SIOCSIFHWADDR");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
close(s);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int do_set(int argc, char **argv)
|
|
{
|
|
char *dev = NULL;
|
|
__u32 mask = 0;
|
|
__u32 flags = 0;
|
|
int qlen = -1;
|
|
int mtu = -1;
|
|
char *newaddr = NULL;
|
|
char *newbrd = NULL;
|
|
struct ifreq ifr0, ifr1;
|
|
char *newname = NULL;
|
|
int htype, halen;
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "up") == 0) {
|
|
mask |= IFF_UP;
|
|
flags |= IFF_UP;
|
|
} else if (strcmp(*argv, "down") == 0) {
|
|
mask |= IFF_UP;
|
|
flags &= ~IFF_UP;
|
|
} else if (strcmp(*argv, "name") == 0) {
|
|
NEXT_ARG();
|
|
newname = *argv;
|
|
} else if (matches(*argv, "address") == 0) {
|
|
NEXT_ARG();
|
|
newaddr = *argv;
|
|
} else if (matches(*argv, "broadcast") == 0 ||
|
|
strcmp(*argv, "brd") == 0) {
|
|
NEXT_ARG();
|
|
newbrd = *argv;
|
|
} else if (matches(*argv, "txqueuelen") == 0 ||
|
|
strcmp(*argv, "qlen") == 0 ||
|
|
matches(*argv, "txqlen") == 0) {
|
|
NEXT_ARG();
|
|
if (qlen != -1)
|
|
duparg("txqueuelen", *argv);
|
|
if (get_integer(&qlen, *argv, 0))
|
|
invarg("Invalid \"txqueuelen\" value\n", *argv);
|
|
} else if (strcmp(*argv, "mtu") == 0) {
|
|
NEXT_ARG();
|
|
if (mtu != -1)
|
|
duparg("mtu", *argv);
|
|
if (get_integer(&mtu, *argv, 0))
|
|
invarg("Invalid \"mtu\" value\n", *argv);
|
|
} else if (strcmp(*argv, "multicast") == 0) {
|
|
NEXT_ARG();
|
|
mask |= IFF_MULTICAST;
|
|
if (strcmp(*argv, "on") == 0) {
|
|
flags |= IFF_MULTICAST;
|
|
} else if (strcmp(*argv, "off") == 0) {
|
|
flags &= ~IFF_MULTICAST;
|
|
} else
|
|
return on_off("multicast");
|
|
} else if (strcmp(*argv, "allmulticast") == 0) {
|
|
NEXT_ARG();
|
|
mask |= IFF_ALLMULTI;
|
|
if (strcmp(*argv, "on") == 0) {
|
|
flags |= IFF_ALLMULTI;
|
|
} else if (strcmp(*argv, "off") == 0) {
|
|
flags &= ~IFF_ALLMULTI;
|
|
} else
|
|
return on_off("allmulticast");
|
|
} else if (strcmp(*argv, "promisc") == 0) {
|
|
NEXT_ARG();
|
|
mask |= IFF_PROMISC;
|
|
if (strcmp(*argv, "on") == 0) {
|
|
flags |= IFF_PROMISC;
|
|
} else if (strcmp(*argv, "off") == 0) {
|
|
flags &= ~IFF_PROMISC;
|
|
} else
|
|
return on_off("promisc");
|
|
} else if (strcmp(*argv, "trailers") == 0) {
|
|
NEXT_ARG();
|
|
mask |= IFF_NOTRAILERS;
|
|
if (strcmp(*argv, "off") == 0) {
|
|
flags |= IFF_NOTRAILERS;
|
|
} else if (strcmp(*argv, "on") == 0) {
|
|
flags &= ~IFF_NOTRAILERS;
|
|
} else
|
|
return on_off("trailers");
|
|
} else if (strcmp(*argv, "arp") == 0) {
|
|
NEXT_ARG();
|
|
mask |= IFF_NOARP;
|
|
if (strcmp(*argv, "on") == 0) {
|
|
flags &= ~IFF_NOARP;
|
|
} else if (strcmp(*argv, "off") == 0) {
|
|
flags |= IFF_NOARP;
|
|
} else
|
|
return on_off("noarp");
|
|
#ifdef IFF_DYNAMIC
|
|
} else if (matches(*argv, "dynamic") == 0) {
|
|
NEXT_ARG();
|
|
mask |= IFF_DYNAMIC;
|
|
if (strcmp(*argv, "on") == 0) {
|
|
flags |= IFF_DYNAMIC;
|
|
} else if (strcmp(*argv, "off") == 0) {
|
|
flags &= ~IFF_DYNAMIC;
|
|
} else
|
|
return on_off("dynamic");
|
|
#endif
|
|
} else {
|
|
if (strcmp(*argv, "dev") == 0) {
|
|
NEXT_ARG();
|
|
}
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
if (dev)
|
|
duparg2("dev", *argv);
|
|
dev = *argv;
|
|
}
|
|
argc--; argv++;
|
|
}
|
|
|
|
if (!dev) {
|
|
fprintf(stderr, "Not enough of information: \"dev\" argument is required.\n");
|
|
exit(-1);
|
|
}
|
|
|
|
if (newaddr || newbrd) {
|
|
halen = get_address(dev, &htype);
|
|
if (halen < 0)
|
|
return -1;
|
|
if (newaddr) {
|
|
if (parse_address(dev, htype, halen, newaddr, &ifr0) < 0)
|
|
return -1;
|
|
}
|
|
if (newbrd) {
|
|
if (parse_address(dev, htype, halen, newbrd, &ifr1) < 0)
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (newname && strcmp(dev, newname)) {
|
|
if (strlen(newname) == 0)
|
|
invarg("\"\" is not a valid device identifier\n", "name");
|
|
if (do_changename(dev, newname) < 0)
|
|
return -1;
|
|
dev = newname;
|
|
}
|
|
if (qlen != -1) {
|
|
if (set_qlen(dev, qlen) < 0)
|
|
return -1;
|
|
}
|
|
if (mtu != -1) {
|
|
if (set_mtu(dev, mtu) < 0)
|
|
return -1;
|
|
}
|
|
if (newaddr || newbrd) {
|
|
if (newbrd) {
|
|
if (set_address(&ifr1, 1) < 0)
|
|
return -1;
|
|
}
|
|
if (newaddr) {
|
|
if (set_address(&ifr0, 0) < 0)
|
|
return -1;
|
|
}
|
|
}
|
|
if (mask)
|
|
return do_chflags(dev, flags, mask);
|
|
return 0;
|
|
}
|
|
#endif /* IPLINK_IOCTL_COMPAT */
|
|
|
|
int do_iplink(int argc, char **argv)
|
|
{
|
|
if (argc > 0) {
|
|
if (iplink_have_newlink()) {
|
|
if (matches(*argv, "add") == 0)
|
|
return iplink_modify(RTM_NEWLINK,
|
|
NLM_F_CREATE|NLM_F_EXCL,
|
|
argc-1, argv+1);
|
|
if (matches(*argv, "set") == 0 ||
|
|
matches(*argv, "change") == 0)
|
|
return iplink_modify(RTM_NEWLINK, 0,
|
|
argc-1, argv+1);
|
|
if (matches(*argv, "replace") == 0)
|
|
return iplink_modify(RTM_NEWLINK,
|
|
NLM_F_CREATE|NLM_F_REPLACE,
|
|
argc-1, argv+1);
|
|
if (matches(*argv, "delete") == 0)
|
|
return iplink_modify(RTM_DELLINK, 0,
|
|
argc-1, argv+1);
|
|
} else {
|
|
#if IPLINK_IOCTL_COMPAT
|
|
if (matches(*argv, "set") == 0)
|
|
return do_set(argc-1, argv+1);
|
|
#endif
|
|
}
|
|
if (matches(*argv, "show") == 0 ||
|
|
matches(*argv, "lst") == 0 ||
|
|
matches(*argv, "list") == 0)
|
|
return ipaddr_list_link(argc-1, argv+1);
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
} else
|
|
return ipaddr_list_link(0, NULL);
|
|
|
|
fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n", *argv);
|
|
exit(-1);
|
|
}
|