[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/iproute2/iproute2-3.4.0/ip/iplink.c b/ap/app/iproute2/iproute2-3.4.0/ip/iplink.c
new file mode 100755
index 0000000..679091e
--- /dev/null
+++ b/ap/app/iproute2/iproute2-3.4.0/ip/iplink.c
@@ -0,0 +1,979 @@
+/*
+ * iplink.c "ip link".
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <dlfcn.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <linux/if.h>
+#include <linux/if_packet.h>
+#include <linux/if_ether.h>
+#include <linux/sockios.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <linux/sockios.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+#define IPLINK_IOCTL_COMPAT 1
+#ifndef LIBDIR
+#define LIBDIR "/usr/lib"
+#endif
+
+static void usage(void) __attribute__((noreturn));
+static int iplink_have_newlink(void);
+
+void iplink_usage(void)
+{
+ if (iplink_have_newlink()) {
+ fprintf(stderr, "Usage: ip link add [link DEV] [ name ] NAME\n");
+ fprintf(stderr, " [ txqueuelen PACKETS ]\n");
+ fprintf(stderr, " [ address LLADDR ]\n");
+ fprintf(stderr, " [ broadcast LLADDR ]\n");
+ fprintf(stderr, " [ mtu MTU ]\n");
+ fprintf(stderr, " type TYPE [ ARGS ]\n");
+ fprintf(stderr, " ip link delete DEV type TYPE [ ARGS ]\n");
+ fprintf(stderr, "\n");
+ fprintf(stderr, " ip link set { dev DEVICE | group DEVGROUP } [ { up | down } ]\n");
+ } else
+ fprintf(stderr, "Usage: ip link set DEVICE [ { up | down } ]\n");
+
+ fprintf(stderr, " [ arp { on | off } ]\n");
+ fprintf(stderr, " [ dynamic { on | off } ]\n");
+ fprintf(stderr, " [ multicast { on | off } ]\n");
+ fprintf(stderr, " [ allmulticast { on | off } ]\n");
+ fprintf(stderr, " [ promisc { on | off } ]\n");
+ fprintf(stderr, " [ trailers { on | off } ]\n");
+ fprintf(stderr, " [ txqueuelen PACKETS ]\n");
+ fprintf(stderr, " [ name NEWNAME ]\n");
+ fprintf(stderr, " [ address LLADDR ]\n");
+ fprintf(stderr, " [ broadcast LLADDR ]\n");
+ fprintf(stderr, " [ mtu MTU ]\n");
+ fprintf(stderr, " [ netns PID ]\n");
+ fprintf(stderr, " [ netns NAME ]\n");
+ fprintf(stderr, " [ alias NAME ]\n");
+ fprintf(stderr, " [ vf NUM [ mac LLADDR ]\n");
+ fprintf(stderr, " [ vlan VLANID [ qos VLAN-QOS ] ]\n");
+
+ fprintf(stderr, " [ rate TXRATE ] ] \n");
+
+ fprintf(stderr, " [ spoofchk { on | off} ] ] \n");
+ fprintf(stderr, " [ master DEVICE ]\n");
+ fprintf(stderr, " [ nomaster ]\n");
+ fprintf(stderr, " ip link show [ DEVICE | group GROUP ]\n");
+
+ if (iplink_have_newlink()) {
+ fprintf(stderr, "\n");
+ fprintf(stderr, "TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | can | bridge }\n");
+ }
+ exit(-1);
+}
+
+static void usage(void)
+{
+ iplink_usage();
+}
+
+static int on_off(char *msg)
+{
+ fprintf(stderr, "Error: argument of \"%s\" must be \"on\" or \"off\"\n", msg);
+ return -1;
+}
+
+static void *BODY; /* cached dlopen(NULL) handle */
+static struct link_util *linkutil_list;
+
+struct link_util *get_link_kind(const char *id)
+{
+ void *dlh;
+ char buf[256];
+ struct link_util *l;
+
+ for (l = linkutil_list; l; l = l->next)
+ if (strcmp(l->id, id) == 0)
+ return l;
+
+ snprintf(buf, sizeof(buf), LIBDIR "/ip/link_%s.so", id);
+ dlh = dlopen(buf, RTLD_LAZY);
+ if (dlh == NULL) {
+ /* look in current binary, only open once */
+ dlh = BODY;
+ if (dlh == NULL) {
+ dlh = BODY = dlopen(NULL, RTLD_LAZY);
+ if (dlh == NULL)
+ return NULL;
+ }
+ }
+
+ snprintf(buf, sizeof(buf), "%s_link_util", id);
+ l = dlsym(dlh, buf);
+ if (l == NULL)
+ return NULL;
+
+ l->next = linkutil_list;
+ linkutil_list = l;
+ return l;
+}
+
+int get_link_mode(const char *mode)
+{
+ if (strcasecmp(mode, "default") == 0)
+ return IF_LINK_MODE_DEFAULT;
+ if (strcasecmp(mode, "dormant") == 0)
+ return IF_LINK_MODE_DORMANT;
+ return -1;
+}
+
+#if IPLINK_IOCTL_COMPAT
+static int have_rtnl_newlink = -1;
+
+static int accept_msg(const struct sockaddr_nl *who,
+ struct nlmsghdr *n, void *arg)
+{
+ struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(n);
+
+ if (n->nlmsg_type == NLMSG_ERROR &&
+ (err->error == -EOPNOTSUPP || err->error == -EINVAL))
+ have_rtnl_newlink = 0;
+ else
+ have_rtnl_newlink = 1;
+ return -1;
+}
+
+static int iplink_have_newlink(void)
+{
+ struct {
+ struct nlmsghdr n;
+ struct ifinfomsg i;
+ char buf[1024];
+ } req;
+
+ if (have_rtnl_newlink < 0) {
+ memset(&req, 0, sizeof(req));
+
+ req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ req.n.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK;
+ req.n.nlmsg_type = RTM_NEWLINK;
+ req.i.ifi_family = AF_UNSPEC;
+
+ rtnl_send(&rth, &req.n, req.n.nlmsg_len);
+ rtnl_listen(&rth, accept_msg, NULL);
+ }
+ return have_rtnl_newlink;
+}
+#else /* IPLINK_IOCTL_COMPAT */
+static int iplink_have_newlink(void)
+{
+ return 1;
+}
+#endif /* ! IPLINK_IOCTL_COMPAT */
+
+struct iplink_req {
+ struct nlmsghdr n;
+ struct ifinfomsg i;
+ char buf[1024];
+};
+
+int iplink_parse_vf(int vf, int *argcp, char ***argvp,
+ struct iplink_req *req)
+{
+ int len, argc = *argcp;
+ char **argv = *argvp;
+ struct rtattr *vfinfo;
+
+ vfinfo = addattr_nest(&req->n, sizeof(*req), IFLA_VF_INFO);
+
+ while (NEXT_ARG_OK()) {
+ NEXT_ARG();
+ if (matches(*argv, "mac") == 0) {
+ struct ifla_vf_mac ivm;
+ NEXT_ARG();
+ ivm.vf = vf;
+ len = ll_addr_a2n((char *)ivm.mac, 32, *argv);
+ if (len < 0)
+ return -1;
+ addattr_l(&req->n, sizeof(*req), IFLA_VF_MAC, &ivm, sizeof(ivm));
+ } else if (matches(*argv, "vlan") == 0) {
+ struct ifla_vf_vlan ivv;
+ NEXT_ARG();
+ if (get_unsigned(&ivv.vlan, *argv, 0)) {
+ invarg("Invalid \"vlan\" value\n", *argv);
+ }
+ ivv.vf = vf;
+ ivv.qos = 0;
+ if (NEXT_ARG_OK()) {
+ NEXT_ARG();
+ if (matches(*argv, "qos") == 0) {
+ NEXT_ARG();
+ if (get_unsigned(&ivv.qos, *argv, 0)) {
+ invarg("Invalid \"qos\" value\n", *argv);
+ }
+ } else {
+ /* rewind arg */
+ PREV_ARG();
+ }
+ }
+ addattr_l(&req->n, sizeof(*req), IFLA_VF_VLAN, &ivv, sizeof(ivv));
+ } else if (matches(*argv, "rate") == 0) {
+ struct ifla_vf_tx_rate ivt;
+ NEXT_ARG();
+ if (get_unsigned(&ivt.rate, *argv, 0)) {
+ invarg("Invalid \"rate\" value\n", *argv);
+ }
+ ivt.vf = vf;
+ addattr_l(&req->n, sizeof(*req), IFLA_VF_TX_RATE, &ivt, sizeof(ivt));
+
+ } else if (matches(*argv, "spoofchk") == 0) {
+ struct ifla_vf_spoofchk ivs;
+ NEXT_ARG();
+ if (matches(*argv, "on") == 0)
+ ivs.setting = 1;
+ else if (matches(*argv, "off") == 0)
+ ivs.setting = 0;
+ else
+ invarg("Invalid \"spoofchk\" value\n", *argv);
+ ivs.vf = vf;
+ addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK, &ivs, sizeof(ivs));
+
+ } else {
+ /* rewind arg */
+ PREV_ARG();
+ break;
+ }
+ }
+
+ if (argc == *argcp)
+ incomplete_command();
+
+ addattr_nest_end(&req->n, vfinfo);
+
+ *argcp = argc;
+ *argvp = argv;
+ return 0;
+}
+
+
+int iplink_parse(int argc, char **argv, struct iplink_req *req,
+ char **name, char **type, char **link, char **dev, int *group)
+{
+ int ret, len;
+ char abuf[32];
+ int qlen = -1;
+ int mtu = -1;
+ int netns = -1;
+ int vf = -1;
+
+ *group = -1;
+ ret = argc;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "up") == 0) {
+ req->i.ifi_change |= IFF_UP;
+ req->i.ifi_flags |= IFF_UP;
+ } else if (strcmp(*argv, "down") == 0) {
+ req->i.ifi_change |= IFF_UP;
+ req->i.ifi_flags &= ~IFF_UP;
+ } else if (strcmp(*argv, "name") == 0) {
+ NEXT_ARG();
+ *name = *argv;
+ } else if (matches(*argv, "link") == 0) {
+ NEXT_ARG();
+ *link = *argv;
+ } else if (matches(*argv, "address") == 0) {
+ NEXT_ARG();
+ len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
+ if (len < 0)
+ return -1;
+ addattr_l(&req->n, sizeof(*req), IFLA_ADDRESS, abuf, len);
+ } else if (matches(*argv, "broadcast") == 0 ||
+ strcmp(*argv, "brd") == 0) {
+ NEXT_ARG();
+ len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
+ if (len < 0)
+ return -1;
+ addattr_l(&req->n, sizeof(*req), IFLA_BROADCAST, abuf, len);
+ } 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);
+ addattr_l(&req->n, sizeof(*req), IFLA_TXQLEN, &qlen, 4);
+ } 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);
+ addattr_l(&req->n, sizeof(*req), IFLA_MTU, &mtu, 4);
+ } else if (strcmp(*argv, "netns") == 0) {
+ NEXT_ARG();
+ if (netns != -1)
+ duparg("netns", *argv);
+ if ((netns = get_netns_fd(*argv)) >= 0)
+ addattr_l(&req->n, sizeof(*req), IFLA_NET_NS_FD, &netns, 4);
+ else if (get_integer(&netns, *argv, 0) == 0)
+ addattr_l(&req->n, sizeof(*req), IFLA_NET_NS_PID, &netns, 4);
+ else
+ invarg("Invalid \"netns\" value\n", *argv);
+ } else if (strcmp(*argv, "multicast") == 0) {
+ NEXT_ARG();
+ req->i.ifi_change |= IFF_MULTICAST;
+ if (strcmp(*argv, "on") == 0) {
+ req->i.ifi_flags |= IFF_MULTICAST;
+ } else if (strcmp(*argv, "off") == 0) {
+ req->i.ifi_flags &= ~IFF_MULTICAST;
+ } else
+ return on_off("multicast");
+ } else if (strcmp(*argv, "allmulticast") == 0) {
+ NEXT_ARG();
+ req->i.ifi_change |= IFF_ALLMULTI;
+ if (strcmp(*argv, "on") == 0) {
+ req->i.ifi_flags |= IFF_ALLMULTI;
+ } else if (strcmp(*argv, "off") == 0) {
+ req->i.ifi_flags &= ~IFF_ALLMULTI;
+ } else
+ return on_off("allmulticast");
+ } else if (strcmp(*argv, "promisc") == 0) {
+ NEXT_ARG();
+ req->i.ifi_change |= IFF_PROMISC;
+ if (strcmp(*argv, "on") == 0) {
+ req->i.ifi_flags |= IFF_PROMISC;
+ } else if (strcmp(*argv, "off") == 0) {
+ req->i.ifi_flags &= ~IFF_PROMISC;
+ } else
+ return on_off("promisc");
+ } else if (strcmp(*argv, "trailers") == 0) {
+ NEXT_ARG();
+ req->i.ifi_change |= IFF_NOTRAILERS;
+ if (strcmp(*argv, "off") == 0) {
+ req->i.ifi_flags |= IFF_NOTRAILERS;
+ } else if (strcmp(*argv, "on") == 0) {
+ req->i.ifi_flags &= ~IFF_NOTRAILERS;
+ } else
+ return on_off("trailers");
+ } else if (strcmp(*argv, "arp") == 0) {
+ NEXT_ARG();
+ req->i.ifi_change |= IFF_NOARP;
+ if (strcmp(*argv, "on") == 0) {
+ req->i.ifi_flags &= ~IFF_NOARP;
+ } else if (strcmp(*argv, "off") == 0) {
+ req->i.ifi_flags |= IFF_NOARP;
+ } else
+ return on_off("noarp");
+ } else if (strcmp(*argv, "vf") == 0) {
+ struct rtattr *vflist;
+ NEXT_ARG();
+ if (get_integer(&vf, *argv, 0)) {
+ invarg("Invalid \"vf\" value\n", *argv);
+ }
+ vflist = addattr_nest(&req->n, sizeof(*req),
+ IFLA_VFINFO_LIST);
+ len = iplink_parse_vf(vf, &argc, &argv, req);
+ if (len < 0)
+ return -1;
+ addattr_nest_end(&req->n, vflist);
+ } else if (matches(*argv, "master") == 0) {
+ int ifindex;
+ NEXT_ARG();
+ ifindex = ll_name_to_index(*argv);
+ if (!ifindex)
+ invarg("Device does not exist\n", *argv);
+ addattr_l(&req->n, sizeof(*req), IFLA_MASTER,
+ &ifindex, 4);
+ } else if (matches(*argv, "nomaster") == 0) {
+ int ifindex = 0;
+ addattr_l(&req->n, sizeof(*req), IFLA_MASTER,
+ &ifindex, 4);
+ } else if (matches(*argv, "dynamic") == 0) {
+ NEXT_ARG();
+ req->i.ifi_change |= IFF_DYNAMIC;
+ if (strcmp(*argv, "on") == 0) {
+ req->i.ifi_flags |= IFF_DYNAMIC;
+ } else if (strcmp(*argv, "off") == 0) {
+ req->i.ifi_flags &= ~IFF_DYNAMIC;
+ } else
+ return on_off("dynamic");
+ } else if (matches(*argv, "type") == 0) {
+ NEXT_ARG();
+ *type = *argv;
+ argc--; argv++;
+ break;
+ } else if (matches(*argv, "alias") == 0) {
+ NEXT_ARG();
+ addattr_l(&req->n, sizeof(*req), IFLA_IFALIAS,
+ *argv, strlen(*argv));
+ argc--; argv++;
+ break;
+ } else if (strcmp(*argv, "group") == 0) {
+ NEXT_ARG();
+ if (*group != -1)
+ duparg("group", *argv);
+ if (rtnl_group_a2n(group, *argv))
+ invarg("Invalid \"group\" value\n", *argv);
+ } else if (strcmp(*argv, "mode") == 0) {
+ int mode;
+ NEXT_ARG();
+ mode = get_link_mode(*argv);
+ if (mode < 0)
+ invarg("Invalid link mode\n", *argv);
+ addattr8(&req->n, sizeof(*req), IFLA_LINKMODE, mode);
+ } else if (strcmp(*argv, "state") == 0) {
+ int state;
+ NEXT_ARG();
+ state = get_operstate(*argv);
+ if (state < 0)
+ invarg("Invalid operstate\n", *argv);
+
+ addattr8(&req->n, sizeof(*req), IFLA_OPERSTATE, state);
+ } else {
+ if (strcmp(*argv, "dev") == 0) {
+ NEXT_ARG();
+ }
+ if (matches(*argv, "help") == 0)
+ usage();
+ if (*dev)
+ duparg2("dev", *argv);
+ *dev = *argv;
+ }
+ argc--; argv++;
+ }
+
+ return ret - argc;
+}
+
+static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
+{
+ int len;
+ char *dev = NULL;
+ char *name = NULL;
+ char *link = NULL;
+ char *type = NULL;
+ int group;
+ struct link_util *lu = NULL;
+ struct iplink_req req;
+ int ret;
+
+ memset(&req, 0, sizeof(req));
+
+ req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+ req.n.nlmsg_flags = NLM_F_REQUEST|flags;
+ req.n.nlmsg_type = cmd;
+ req.i.ifi_family = preferred_family;
+
+ ret = iplink_parse(argc, argv, &req, &name, &type, &link, &dev, &group);
+ if (ret < 0)
+ return ret;
+
+ argc -= ret;
+ argv += ret;
+
+ if (group != -1) {
+ if (dev)
+ addattr_l(&req.n, sizeof(req), IFLA_GROUP,
+ &group, sizeof(group));
+ else {
+ if (argc) {
+ fprintf(stderr, "Garbage instead of arguments "
+ "\"%s ...\". Try \"ip link "
+ "help\".\n", *argv);
+ return -1;
+ }
+ if (flags & NLM_F_CREATE) {
+ fprintf(stderr, "group cannot be used when "
+ "creating devices.\n");
+ return -1;
+ }
+
+ req.i.ifi_index = 0;
+ addattr32(&req.n, sizeof(req), IFLA_GROUP, group);
+ if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
+ exit(2);
+ return 0;
+ }
+ }
+
+ ll_init_map(&rth);
+
+ if (!(flags & NLM_F_CREATE)) {
+ if (!dev) {
+ fprintf(stderr, "Not enough information: \"dev\" "
+ "argument is required.\n");
+ exit(-1);
+ }
+
+ req.i.ifi_index = ll_name_to_index(dev);
+ if (req.i.ifi_index == 0) {
+ fprintf(stderr, "Cannot find device \"%s\"\n", dev);
+ return -1;
+ }
+ } else {
+ /* Allow "ip link add dev" and "ip link add name" */
+ if (!name)
+ name = dev;
+
+ if (link) {
+ int ifindex;
+
+ ifindex = ll_name_to_index(link);
+ if (ifindex == 0) {
+ fprintf(stderr, "Cannot find device \"%s\"\n",
+ link);
+ return -1;
+ }
+ addattr_l(&req.n, sizeof(req), IFLA_LINK, &ifindex, 4);
+ }
+ }
+
+ if (name) {
+ len = strlen(name) + 1;
+ if (len == 1)
+ invarg("\"\" is not a valid device identifier\n", "name");
+ if (len > IFNAMSIZ)
+ invarg("\"name\" too long\n", name);
+ addattr_l(&req.n, sizeof(req), IFLA_IFNAME, name, len);
+ }
+
+ if (type) {
+ struct rtattr *linkinfo = NLMSG_TAIL(&req.n);
+ addattr_l(&req.n, sizeof(req), IFLA_LINKINFO, NULL, 0);
+ addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type,
+ strlen(type));
+
+ lu = get_link_kind(type);
+ if (lu && argc) {
+ struct rtattr * data = NLMSG_TAIL(&req.n);
+ addattr_l(&req.n, sizeof(req), IFLA_INFO_DATA, NULL, 0);
+
+ if (lu->parse_opt &&
+ lu->parse_opt(lu, argc, argv, &req.n))
+ return -1;
+
+ data->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)data;
+ } else if (argc) {
+ if (matches(*argv, "help") == 0)
+ usage();
+ fprintf(stderr, "Garbage instead of arguments \"%s ...\". "
+ "Try \"ip link help\".\n", *argv);
+ return -1;
+ }
+ linkinfo->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)linkinfo;
+ } else if (flags & NLM_F_CREATE) {
+ fprintf(stderr, "Not enough information: \"type\" argument "
+ "is required\n");
+ return -1;
+ }
+
+ if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
+ exit(2);
+
+ return 0;
+}
+
+#if IPLINK_IOCTL_COMPAT
+static int get_ctl_fd(void)
+{
+ int s_errno;
+ int fd;
+
+ fd = socket(PF_INET, SOCK_DGRAM, 0);
+ if (fd >= 0)
+ return fd;
+ s_errno = errno;
+ fd = socket(PF_PACKET, SOCK_DGRAM, 0);
+ if (fd >= 0)
+ return fd;
+ fd = socket(PF_INET6, SOCK_DGRAM, 0);
+ if (fd >= 0)
+ return fd;
+ errno = s_errno;
+ perror("Cannot create control socket");
+ return -1;
+}
+
+static int do_chflags(const char *dev, __u32 flags, __u32 mask)
+{
+ struct ifreq ifr;
+ int fd;
+ int err;
+
+ strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+ fd = get_ctl_fd();
+ if (fd < 0)
+ return -1;
+ err = ioctl(fd, SIOCGIFFLAGS, &ifr);
+ if (err) {
+ perror("SIOCGIFFLAGS");
+ close(fd);
+ return -1;
+ }
+ if ((ifr.ifr_flags^flags)&mask) {
+ ifr.ifr_flags &= ~mask;
+ ifr.ifr_flags |= mask&flags;
+ err = ioctl(fd, SIOCSIFFLAGS, &ifr);
+ if (err)
+ perror("SIOCSIFFLAGS");
+ }
+ close(fd);
+ return err;
+}
+
+static int do_changename(const char *dev, const char *newdev)
+{
+ struct ifreq ifr;
+ int fd;
+ int err;
+
+ strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+ strncpy(ifr.ifr_newname, newdev, IFNAMSIZ);
+ fd = get_ctl_fd();
+ if (fd < 0)
+ return -1;
+ err = ioctl(fd, SIOCSIFNAME, &ifr);
+ if (err) {
+ perror("SIOCSIFNAME");
+ close(fd);
+ return -1;
+ }
+ close(fd);
+ return err;
+}
+
+static int set_qlen(const char *dev, int qlen)
+{
+ struct ifreq ifr;
+ int s;
+
+ s = get_ctl_fd();
+ if (s < 0)
+ return -1;
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+ ifr.ifr_qlen = qlen;
+ if (ioctl(s, SIOCSIFTXQLEN, &ifr) < 0) {
+ perror("SIOCSIFXQLEN");
+ close(s);
+ return -1;
+ }
+ close(s);
+
+ return 0;
+}
+
+static int set_mtu(const char *dev, int mtu)
+{
+ struct ifreq ifr;
+ int s;
+
+ s = get_ctl_fd();
+ if (s < 0)
+ return -1;
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+ ifr.ifr_mtu = mtu;
+ if (ioctl(s, SIOCSIFMTU, &ifr) < 0) {
+ perror("SIOCSIFMTU");
+ close(s);
+ 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");
+ } 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");
+ } 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);
+}