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1620 lines
38 KiB
1620 lines
38 KiB
/*
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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 <stdbool.h>
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#include <linux/mpls.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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#include "xdp.h"
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#include "namespace.h"
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#define IPLINK_IOCTL_COMPAT 1
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#ifndef LIBDIR
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#define LIBDIR "/usr/lib"
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#endif
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static void usage(void) __attribute__((noreturn));
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static int iplink_have_newlink(void);
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void iplink_usage(void)
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{
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if (iplink_have_newlink()) {
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fprintf(stderr,
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"Usage: ip link add [link DEV] [ name ] NAME\n"
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" [ txqueuelen PACKETS ]\n"
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" [ address LLADDR ]\n"
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" [ broadcast LLADDR ]\n"
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" [ mtu MTU ] [index IDX ]\n"
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" [ numtxqueues QUEUE_COUNT ]\n"
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" [ numrxqueues QUEUE_COUNT ]\n"
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" type TYPE [ ARGS ]\n"
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"\n"
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" ip link delete { DEVICE | dev DEVICE | group DEVGROUP } type TYPE [ ARGS ]\n"
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"\n"
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" ip link set { DEVICE | dev DEVICE | group DEVGROUP }\n"
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" [ { up | down } ]\n"
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" [ type TYPE ARGS ]\n");
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} else
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fprintf(stderr,
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"Usage: ip link set DEVICE [ { up | down } ]\n");
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fprintf(stderr,
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" [ arp { on | off } ]\n"
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" [ dynamic { on | off } ]\n"
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" [ multicast { on | off } ]\n"
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" [ allmulticast { on | off } ]\n"
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" [ promisc { on | off } ]\n"
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" [ trailers { on | off } ]\n"
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" [ carrier { on | off } ]\n"
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" [ txqueuelen PACKETS ]\n"
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" [ name NEWNAME ]\n"
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" [ address LLADDR ]\n"
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" [ broadcast LLADDR ]\n"
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" [ mtu MTU ]\n"
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" [ netns { PID | NAME } ]\n"
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" [ link-netnsid ID ]\n"
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" [ alias NAME ]\n"
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" [ vf NUM [ mac LLADDR ]\n"
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" [ vlan VLANID [ qos VLAN-QOS ] [ proto VLAN-PROTO ] ]\n"
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" [ rate TXRATE ]\n"
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" [ max_tx_rate TXRATE ]\n"
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" [ min_tx_rate TXRATE ]\n"
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" [ spoofchk { on | off} ]\n"
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" [ query_rss { on | off} ]\n"
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" [ state { auto | enable | disable} ] ]\n"
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" [ trust { on | off} ] ]\n"
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" [ node_guid { eui64 } ]\n"
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" [ port_guid { eui64 } ]\n"
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" [ xdp { off |\n"
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" object FILE [ section NAME ] [ verbose ] |\n"
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" pinned FILE } ]\n"
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" [ master DEVICE ][ vrf NAME ]\n"
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" [ nomaster ]\n"
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" [ addrgenmode { eui64 | none | stable_secret | random } ]\n"
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" [ protodown { on | off } ]\n"
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"\n"
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" ip link show [ DEVICE | group GROUP ] [up] [master DEV] [vrf NAME] [type TYPE]\n");
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fprintf(stderr, "\n ip link xstats type TYPE [ ARGS ]\n");
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fprintf(stderr, "\n ip link afstats [ dev DEVICE ]\n");
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if (iplink_have_newlink()) {
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fprintf(stderr,
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"\n"
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" ip link help [ TYPE ]\n"
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"\n"
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"TYPE := { vlan | veth | vcan | dummy | ifb | macvlan | macvtap |\n"
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" bridge | bond | team | ipoib | ip6tnl | ipip | sit | vxlan |\n"
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" gre | gretap | erspan | ip6gre | ip6gretap | vti | nlmon |\n"
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" team_slave | bond_slave | ipvlan | geneve | bridge_slave |\n"
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" vrf | macsec }\n");
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}
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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(const char *msg, const char *realval)
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{
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fprintf(stderr,
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"Error: argument of \"%s\" must be \"on\" or \"off\", not \"%s\"\n",
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msg, realval);
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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), LIBDIR "/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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static int get_link_mode(const char *mode)
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{
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if (strcasecmp(mode, "default") == 0)
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return IF_LINK_MODE_DEFAULT;
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if (strcasecmp(mode, "dormant") == 0)
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return IF_LINK_MODE_DORMANT;
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return -1;
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}
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static int get_addr_gen_mode(const char *mode)
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{
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if (strcasecmp(mode, "eui64") == 0)
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return IN6_ADDR_GEN_MODE_EUI64;
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if (strcasecmp(mode, "none") == 0)
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return IN6_ADDR_GEN_MODE_NONE;
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if (strcasecmp(mode, "stable_secret") == 0)
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return IN6_ADDR_GEN_MODE_STABLE_PRIVACY;
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if (strcasecmp(mode, "random") == 0)
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return IN6_ADDR_GEN_MODE_RANDOM;
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return -1;
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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 rtnl_ctrl_data *ctrl,
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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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.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
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.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
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.n.nlmsg_type = RTM_NEWLINK,
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.i.ifi_family = AF_UNSPEC,
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};
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if (have_rtnl_newlink < 0) {
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if (rtnl_send(&rth, &req.n, req.n.nlmsg_len) < 0) {
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perror("request send failed");
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exit(1);
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}
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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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static int nl_get_ll_addr_len(unsigned int dev_index)
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{
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int len;
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struct iplink_req req = {
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.n = {
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.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
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.nlmsg_type = RTM_GETLINK,
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.nlmsg_flags = NLM_F_REQUEST
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},
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.i = {
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.ifi_family = preferred_family,
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.ifi_index = dev_index,
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}
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};
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struct rtattr *tb[IFLA_MAX+1];
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if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0)
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return -1;
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len = req.n.nlmsg_len - NLMSG_LENGTH(sizeof(req.i));
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if (len < 0)
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return -1;
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parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(&req.i), len, NLA_F_NESTED);
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if (!tb[IFLA_ADDRESS])
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return -1;
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return RTA_PAYLOAD(tb[IFLA_ADDRESS]);
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}
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static void iplink_parse_vf_vlan_info(int vf, int *argcp, char ***argvp,
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struct ifla_vf_vlan_info *ivvip)
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{
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int argc = *argcp;
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char **argv = *argvp;
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NEXT_ARG();
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if (get_unsigned(&ivvip->vlan, *argv, 0))
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invarg("Invalid \"vlan\" value\n", *argv);
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ivvip->vf = vf;
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ivvip->qos = 0;
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ivvip->vlan_proto = htons(ETH_P_8021Q);
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if (NEXT_ARG_OK()) {
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NEXT_ARG();
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if (matches(*argv, "qos") == 0) {
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NEXT_ARG();
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if (get_unsigned(&ivvip->qos, *argv, 0))
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invarg("Invalid \"qos\" value\n", *argv);
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} else {
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/* rewind arg */
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PREV_ARG();
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}
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}
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if (NEXT_ARG_OK()) {
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NEXT_ARG();
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if (matches(*argv, "proto") == 0) {
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NEXT_ARG();
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if (ll_proto_a2n(&ivvip->vlan_proto, *argv))
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invarg("protocol is invalid\n", *argv);
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if (ivvip->vlan_proto != htons(ETH_P_8021AD) &&
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ivvip->vlan_proto != htons(ETH_P_8021Q)) {
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SPRINT_BUF(b1);
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SPRINT_BUF(b2);
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char msg[64 + sizeof(b1) + sizeof(b2)];
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sprintf(msg,
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"Invalid \"vlan protocol\" value - supported %s, %s\n",
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ll_proto_n2a(htons(ETH_P_8021Q),
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b1, sizeof(b1)),
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ll_proto_n2a(htons(ETH_P_8021AD),
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b2, sizeof(b2)));
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invarg(msg, *argv);
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}
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} else {
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/* rewind arg */
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PREV_ARG();
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}
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}
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*argcp = argc;
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*argvp = argv;
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}
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static int iplink_parse_vf(int vf, int *argcp, char ***argvp,
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struct iplink_req *req, int dev_index)
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{
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char new_rate_api = 0, count = 0, override_legacy_rate = 0;
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struct ifla_vf_rate tivt;
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int len, argc = *argcp;
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char **argv = *argvp;
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struct rtattr *vfinfo;
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tivt.min_tx_rate = -1;
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tivt.max_tx_rate = -1;
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vfinfo = addattr_nest(&req->n, sizeof(*req), IFLA_VF_INFO);
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while (NEXT_ARG_OK()) {
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NEXT_ARG();
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count++;
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if (!matches(*argv, "max_tx_rate")) {
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/* new API in use */
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new_rate_api = 1;
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/* override legacy rate */
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override_legacy_rate = 1;
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} else if (!matches(*argv, "min_tx_rate")) {
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/* new API in use */
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new_rate_api = 1;
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}
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}
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while (count--) {
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/* rewind arg */
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PREV_ARG();
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}
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while (NEXT_ARG_OK()) {
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NEXT_ARG();
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if (matches(*argv, "mac") == 0) {
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struct ifla_vf_mac ivm = { 0 };
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int halen = nl_get_ll_addr_len(dev_index);
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NEXT_ARG();
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ivm.vf = vf;
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len = ll_addr_a2n((char *)ivm.mac, 32, *argv);
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if (len < 0)
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return -1;
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if (halen > 0 && len != halen) {
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fprintf(stderr,
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"Invalid address length %d - must be %d bytes\n",
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len, halen);
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return -1;
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}
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addattr_l(&req->n, sizeof(*req), IFLA_VF_MAC,
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&ivm, sizeof(ivm));
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} else if (matches(*argv, "vlan") == 0) {
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struct ifla_vf_vlan_info ivvi;
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iplink_parse_vf_vlan_info(vf, &argc, &argv, &ivvi);
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/* support the old interface in case of older kernel*/
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if (ivvi.vlan_proto == htons(ETH_P_8021Q)) {
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struct ifla_vf_vlan ivv;
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ivv.vf = ivvi.vf;
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ivv.vlan = ivvi.vlan;
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ivv.qos = ivvi.qos;
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addattr_l(&req->n, sizeof(*req),
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IFLA_VF_VLAN, &ivv, sizeof(ivv));
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} else {
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struct rtattr *vfvlanlist;
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vfvlanlist = addattr_nest(&req->n, sizeof(*req),
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IFLA_VF_VLAN_LIST);
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addattr_l(&req->n, sizeof(*req),
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IFLA_VF_VLAN_INFO, &ivvi,
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sizeof(ivvi));
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|
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while (NEXT_ARG_OK()) {
|
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NEXT_ARG();
|
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if (matches(*argv, "vlan") != 0) {
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PREV_ARG();
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break;
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}
|
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iplink_parse_vf_vlan_info(vf, &argc,
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&argv, &ivvi);
|
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addattr_l(&req->n, sizeof(*req),
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IFLA_VF_VLAN_INFO, &ivvi,
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sizeof(ivvi));
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}
|
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addattr_nest_end(&req->n, vfvlanlist);
|
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}
|
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} else if (matches(*argv, "rate") == 0) {
|
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struct ifla_vf_tx_rate ivt;
|
|
|
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NEXT_ARG();
|
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if (get_unsigned(&ivt.rate, *argv, 0))
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invarg("Invalid \"rate\" value\n", *argv);
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|
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ivt.vf = vf;
|
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if (!new_rate_api)
|
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addattr_l(&req->n, sizeof(*req),
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IFLA_VF_TX_RATE, &ivt, sizeof(ivt));
|
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else if (!override_legacy_rate)
|
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tivt.max_tx_rate = ivt.rate;
|
|
|
|
} else if (matches(*argv, "max_tx_rate") == 0) {
|
|
NEXT_ARG();
|
|
if (get_unsigned(&tivt.max_tx_rate, *argv, 0))
|
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invarg("Invalid \"max tx rate\" value\n",
|
|
*argv);
|
|
tivt.vf = vf;
|
|
|
|
} else if (matches(*argv, "min_tx_rate") == 0) {
|
|
NEXT_ARG();
|
|
if (get_unsigned(&tivt.min_tx_rate, *argv, 0))
|
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invarg("Invalid \"min tx rate\" value\n",
|
|
*argv);
|
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tivt.vf = vf;
|
|
|
|
} 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
|
|
return on_off("spoofchk", *argv);
|
|
ivs.vf = vf;
|
|
addattr_l(&req->n, sizeof(*req), IFLA_VF_SPOOFCHK,
|
|
&ivs, sizeof(ivs));
|
|
|
|
} else if (matches(*argv, "query_rss") == 0) {
|
|
struct ifla_vf_rss_query_en ivs;
|
|
|
|
NEXT_ARG();
|
|
if (matches(*argv, "on") == 0)
|
|
ivs.setting = 1;
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|
else if (matches(*argv, "off") == 0)
|
|
ivs.setting = 0;
|
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else
|
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return on_off("query_rss", *argv);
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ivs.vf = vf;
|
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addattr_l(&req->n, sizeof(*req), IFLA_VF_RSS_QUERY_EN,
|
|
&ivs, sizeof(ivs));
|
|
|
|
} else if (matches(*argv, "trust") == 0) {
|
|
struct ifla_vf_trust ivt;
|
|
|
|
NEXT_ARG();
|
|
if (matches(*argv, "on") == 0)
|
|
ivt.setting = 1;
|
|
else if (matches(*argv, "off") == 0)
|
|
ivt.setting = 0;
|
|
else
|
|
invarg("Invalid \"trust\" value\n", *argv);
|
|
ivt.vf = vf;
|
|
addattr_l(&req->n, sizeof(*req), IFLA_VF_TRUST,
|
|
&ivt, sizeof(ivt));
|
|
|
|
} else if (matches(*argv, "state") == 0) {
|
|
struct ifla_vf_link_state ivl;
|
|
|
|
NEXT_ARG();
|
|
if (matches(*argv, "auto") == 0)
|
|
ivl.link_state = IFLA_VF_LINK_STATE_AUTO;
|
|
else if (matches(*argv, "enable") == 0)
|
|
ivl.link_state = IFLA_VF_LINK_STATE_ENABLE;
|
|
else if (matches(*argv, "disable") == 0)
|
|
ivl.link_state = IFLA_VF_LINK_STATE_DISABLE;
|
|
else
|
|
invarg("Invalid \"state\" value\n", *argv);
|
|
ivl.vf = vf;
|
|
addattr_l(&req->n, sizeof(*req), IFLA_VF_LINK_STATE,
|
|
&ivl, sizeof(ivl));
|
|
} else if (matches(*argv, "node_guid") == 0) {
|
|
struct ifla_vf_guid ivg;
|
|
|
|
NEXT_ARG();
|
|
ivg.vf = vf;
|
|
if (get_guid(&ivg.guid, *argv)) {
|
|
invarg("Invalid GUID format\n", *argv);
|
|
return -1;
|
|
}
|
|
addattr_l(&req->n, sizeof(*req), IFLA_VF_IB_NODE_GUID,
|
|
&ivg, sizeof(ivg));
|
|
} else if (matches(*argv, "port_guid") == 0) {
|
|
struct ifla_vf_guid ivg;
|
|
|
|
NEXT_ARG();
|
|
ivg.vf = vf;
|
|
if (get_guid(&ivg.guid, *argv)) {
|
|
invarg("Invalid GUID format\n", *argv);
|
|
return -1;
|
|
}
|
|
addattr_l(&req->n, sizeof(*req), IFLA_VF_IB_PORT_GUID,
|
|
&ivg, sizeof(ivg));
|
|
} else {
|
|
/* rewind arg */
|
|
PREV_ARG();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (new_rate_api) {
|
|
int tmin, tmax;
|
|
|
|
if (tivt.min_tx_rate == -1 || tivt.max_tx_rate == -1) {
|
|
ipaddr_get_vf_rate(tivt.vf, &tmin, &tmax, dev_index);
|
|
if (tivt.min_tx_rate == -1)
|
|
tivt.min_tx_rate = tmin;
|
|
if (tivt.max_tx_rate == -1)
|
|
tivt.max_tx_rate = tmax;
|
|
}
|
|
addattr_l(&req->n, sizeof(*req), IFLA_VF_RATE, &tivt,
|
|
sizeof(tivt));
|
|
}
|
|
|
|
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 *index)
|
|
{
|
|
int ret, len;
|
|
char abuf[32];
|
|
int qlen = -1;
|
|
int mtu = -1;
|
|
int netns = -1;
|
|
int vf = -1;
|
|
int numtxqueues = -1;
|
|
int numrxqueues = -1;
|
|
int dev_index = 0;
|
|
int link_netnsid = -1;
|
|
int addr_len = 0;
|
|
|
|
*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();
|
|
if (check_ifname(*argv))
|
|
invarg("\"name\" not a valid ifname", *argv);
|
|
*name = *argv;
|
|
} else if (strcmp(*argv, "index") == 0) {
|
|
NEXT_ARG();
|
|
*index = atoi(*argv);
|
|
if (*index < 0)
|
|
invarg("Invalid \"index\" value", *argv);
|
|
} else if (matches(*argv, "link") == 0) {
|
|
NEXT_ARG();
|
|
*link = *argv;
|
|
} else if (matches(*argv, "address") == 0) {
|
|
NEXT_ARG();
|
|
addr_len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
|
|
if (addr_len < 0)
|
|
return -1;
|
|
addattr_l(&req->n, sizeof(*req),
|
|
IFLA_ADDRESS, abuf, addr_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, "xdpgeneric") == 0 ||
|
|
strcmp(*argv, "xdpdrv") == 0 ||
|
|
strcmp(*argv, "xdpoffload") == 0 ||
|
|
strcmp(*argv, "xdp") == 0) {
|
|
bool generic = strcmp(*argv, "xdpgeneric") == 0;
|
|
bool drv = strcmp(*argv, "xdpdrv") == 0;
|
|
bool offload = strcmp(*argv, "xdpoffload") == 0;
|
|
|
|
NEXT_ARG();
|
|
if (xdp_parse(&argc, &argv, req, generic, drv,
|
|
offload))
|
|
exit(-1);
|
|
} else if (strcmp(*argv, "netns") == 0) {
|
|
NEXT_ARG();
|
|
if (netns != -1)
|
|
duparg("netns", *argv);
|
|
netns = netns_get_fd(*argv);
|
|
if (netns >= 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", *argv);
|
|
} 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", *argv);
|
|
} 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", *argv);
|
|
} 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", *argv);
|
|
} 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("arp", *argv);
|
|
} else if (strcmp(*argv, "carrier") == 0) {
|
|
int carrier;
|
|
|
|
NEXT_ARG();
|
|
if (strcmp(*argv, "on") == 0)
|
|
carrier = 1;
|
|
else if (strcmp(*argv, "off") == 0)
|
|
carrier = 0;
|
|
else
|
|
return on_off("carrier", *argv);
|
|
|
|
addattr8(&req->n, sizeof(*req), IFLA_CARRIER, carrier);
|
|
} 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);
|
|
if (dev_index == 0)
|
|
missarg("dev");
|
|
|
|
len = iplink_parse_vf(vf, &argc, &argv, req, dev_index);
|
|
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 (strcmp(*argv, "vrf") == 0) {
|
|
int ifindex;
|
|
|
|
NEXT_ARG();
|
|
ifindex = ll_name_to_index(*argv);
|
|
if (!ifindex)
|
|
invarg("Not a valid VRF name\n", *argv);
|
|
if (!name_is_vrf(*argv))
|
|
invarg("Not a valid VRF name\n", *argv);
|
|
addattr_l(&req->n, sizeof(*req), IFLA_MASTER,
|
|
&ifindex, sizeof(ifindex));
|
|
} 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", *argv);
|
|
} 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 (matches(*argv, "numtxqueues") == 0) {
|
|
NEXT_ARG();
|
|
if (numtxqueues != -1)
|
|
duparg("numtxqueues", *argv);
|
|
if (get_integer(&numtxqueues, *argv, 0))
|
|
invarg("Invalid \"numtxqueues\" value\n",
|
|
*argv);
|
|
addattr_l(&req->n, sizeof(*req), IFLA_NUM_TX_QUEUES,
|
|
&numtxqueues, 4);
|
|
} else if (matches(*argv, "numrxqueues") == 0) {
|
|
NEXT_ARG();
|
|
if (numrxqueues != -1)
|
|
duparg("numrxqueues", *argv);
|
|
if (get_integer(&numrxqueues, *argv, 0))
|
|
invarg("Invalid \"numrxqueues\" value\n",
|
|
*argv);
|
|
addattr_l(&req->n, sizeof(*req), IFLA_NUM_RX_QUEUES,
|
|
&numrxqueues, 4);
|
|
} else if (matches(*argv, "addrgenmode") == 0) {
|
|
struct rtattr *afs, *afs6;
|
|
int mode;
|
|
|
|
NEXT_ARG();
|
|
mode = get_addr_gen_mode(*argv);
|
|
if (mode < 0)
|
|
invarg("Invalid address generation mode\n",
|
|
*argv);
|
|
afs = addattr_nest(&req->n, sizeof(*req), IFLA_AF_SPEC);
|
|
afs6 = addattr_nest(&req->n, sizeof(*req), AF_INET6);
|
|
addattr8(&req->n, sizeof(*req),
|
|
IFLA_INET6_ADDR_GEN_MODE, mode);
|
|
addattr_nest_end(&req->n, afs6);
|
|
addattr_nest_end(&req->n, afs);
|
|
} else if (matches(*argv, "link-netnsid") == 0) {
|
|
NEXT_ARG();
|
|
if (link_netnsid != -1)
|
|
duparg("link-netnsid", *argv);
|
|
if (get_integer(&link_netnsid, *argv, 0))
|
|
invarg("Invalid \"link-netnsid\" value\n",
|
|
*argv);
|
|
addattr32(&req->n, sizeof(*req), IFLA_LINK_NETNSID,
|
|
link_netnsid);
|
|
} else if (strcmp(*argv, "protodown") == 0) {
|
|
unsigned int proto_down;
|
|
|
|
NEXT_ARG();
|
|
if (strcmp(*argv, "on") == 0)
|
|
proto_down = 1;
|
|
else if (strcmp(*argv, "off") == 0)
|
|
proto_down = 0;
|
|
else
|
|
return on_off("protodown", *argv);
|
|
addattr8(&req->n, sizeof(*req), IFLA_PROTO_DOWN,
|
|
proto_down);
|
|
} else {
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
|
|
if (strcmp(*argv, "dev") == 0)
|
|
NEXT_ARG();
|
|
if (*dev)
|
|
duparg2("dev", *argv);
|
|
if (check_ifname(*argv))
|
|
invarg("\"dev\" not a valid ifname", *argv);
|
|
*dev = *argv;
|
|
dev_index = ll_name_to_index(*dev);
|
|
}
|
|
argc--; argv++;
|
|
}
|
|
|
|
if (dev_index && addr_len) {
|
|
int halen = nl_get_ll_addr_len(dev_index);
|
|
|
|
if (halen >= 0 && halen != addr_len) {
|
|
fprintf(stderr,
|
|
"Invalid address length %d - must be %d bytes\n",
|
|
addr_len, halen);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return ret - argc;
|
|
}
|
|
|
|
static int iplink_modify(int cmd, unsigned int flags, int argc, char **argv)
|
|
{
|
|
char *dev = NULL;
|
|
char *name = NULL;
|
|
char *link = NULL;
|
|
char *type = NULL;
|
|
int index = -1;
|
|
int group;
|
|
struct link_util *lu = NULL;
|
|
struct iplink_req req = {
|
|
.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
|
|
.n.nlmsg_flags = NLM_F_REQUEST | flags,
|
|
.n.nlmsg_type = cmd,
|
|
.i.ifi_family = preferred_family,
|
|
};
|
|
int ret;
|
|
|
|
ret = iplink_parse(argc, argv,
|
|
&req, &name, &type, &link, &dev, &group, &index);
|
|
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, NULL, 0) < 0)
|
|
return -2;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!(flags & NLM_F_CREATE)) {
|
|
if (!dev) {
|
|
fprintf(stderr,
|
|
"Not enough information: \"dev\" argument is required.\n");
|
|
exit(-1);
|
|
}
|
|
if (cmd == RTM_NEWLINK && index != -1) {
|
|
fprintf(stderr,
|
|
"index can be used only when creating devices.\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 (index == -1)
|
|
req.i.ifi_index = 0;
|
|
else
|
|
req.i.ifi_index = index;
|
|
}
|
|
|
|
if (name) {
|
|
addattr_l(&req.n, sizeof(req),
|
|
IFLA_IFNAME, name, strlen(name) + 1);
|
|
}
|
|
|
|
if (type) {
|
|
struct rtattr *linkinfo;
|
|
char *ulinep = strchr(type, '_');
|
|
int iflatype;
|
|
|
|
linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
|
|
addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type,
|
|
strlen(type));
|
|
|
|
lu = get_link_kind(type);
|
|
if (ulinep && !strcmp(ulinep, "_slave"))
|
|
iflatype = IFLA_INFO_SLAVE_DATA;
|
|
else
|
|
iflatype = IFLA_INFO_DATA;
|
|
if (lu && argc) {
|
|
struct rtattr *data
|
|
= addattr_nest(&req.n,
|
|
sizeof(req), iflatype);
|
|
|
|
if (lu->parse_opt &&
|
|
lu->parse_opt(lu, argc, argv, &req.n))
|
|
return -1;
|
|
|
|
addattr_nest_end(&req.n, 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;
|
|
}
|
|
addattr_nest_end(&req.n, 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, NULL, 0) < 0)
|
|
return -2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int iplink_get(unsigned int flags, char *name, __u32 filt_mask)
|
|
{
|
|
struct iplink_req req = {
|
|
.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)),
|
|
.n.nlmsg_flags = NLM_F_REQUEST | flags,
|
|
.n.nlmsg_type = RTM_GETLINK,
|
|
.i.ifi_family = preferred_family,
|
|
};
|
|
struct {
|
|
struct nlmsghdr n;
|
|
char buf[32768];
|
|
} answer;
|
|
|
|
if (name) {
|
|
addattr_l(&req.n, sizeof(req),
|
|
IFLA_IFNAME, name, strlen(name) + 1);
|
|
}
|
|
addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask);
|
|
|
|
if (rtnl_talk(&rth, &req.n, &answer.n, sizeof(answer)) < 0)
|
|
return -2;
|
|
if (answer.n.nlmsg_len > sizeof(answer.buf)) {
|
|
fprintf(stderr, "Message truncated from %u to %zu\n",
|
|
answer.n.nlmsg_len, sizeof(answer.buf));
|
|
return -2;
|
|
}
|
|
|
|
open_json_object(NULL);
|
|
if (brief)
|
|
print_linkinfo_brief(NULL, &answer.n, stdout, NULL);
|
|
else
|
|
print_linkinfo(NULL, &answer.n, stdout);
|
|
close_json_object();
|
|
|
|
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 = { .ifr_qlen = qlen };
|
|
int s;
|
|
|
|
s = get_ctl_fd();
|
|
if (s < 0)
|
|
return -1;
|
|
|
|
strncpy(ifr.ifr_name, dev, IFNAMSIZ);
|
|
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 = { .ifr_mtu = mtu };
|
|
int s;
|
|
|
|
s = get_ctl_fd();
|
|
if (s < 0)
|
|
return -1;
|
|
|
|
strncpy(ifr.ifr_name, dev, IFNAMSIZ);
|
|
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 = {
|
|
.sll_family = AF_PACKET,
|
|
.sll_protocol = htons(ETH_P_LOOP),
|
|
};
|
|
socklen_t alen;
|
|
int s;
|
|
|
|
s = socket(PF_PACKET, SOCK_DGRAM, 0);
|
|
if (s < 0) {
|
|
perror("socket(PF_PACKET)");
|
|
return -1;
|
|
}
|
|
|
|
strncpy(ifr.ifr_name, dev, IFNAMSIZ);
|
|
if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
|
|
perror("SIOCGIFINDEX");
|
|
close(s);
|
|
return -1;
|
|
}
|
|
|
|
me.sll_ifindex = ifr.ifr_ifindex;
|
|
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();
|
|
if (check_ifname(*argv))
|
|
invarg("\"name\" not a valid ifname", *argv);
|
|
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", *argv);
|
|
} 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", *argv);
|
|
} 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", *argv);
|
|
} 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", *argv);
|
|
} 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("arp", *argv);
|
|
} 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", *argv);
|
|
} else {
|
|
if (strcmp(*argv, "dev") == 0)
|
|
NEXT_ARG();
|
|
else if (matches(*argv, "help") == 0)
|
|
usage();
|
|
|
|
if (dev)
|
|
duparg2("dev", *argv);
|
|
if (check_ifname(*argv))
|
|
invarg("\"dev\" not a valid ifname", *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 (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 */
|
|
|
|
static void print_mpls_stats(FILE *fp, struct rtattr *attr)
|
|
{
|
|
struct rtattr *mrtb[MPLS_STATS_MAX+1];
|
|
struct mpls_link_stats *stats;
|
|
|
|
parse_rtattr(mrtb, MPLS_STATS_MAX, RTA_DATA(attr),
|
|
RTA_PAYLOAD(attr));
|
|
if (!mrtb[MPLS_STATS_LINK])
|
|
return;
|
|
|
|
stats = RTA_DATA(mrtb[MPLS_STATS_LINK]);
|
|
|
|
fprintf(fp, " mpls:\n");
|
|
fprintf(fp, " RX: bytes packets errors dropped noroute\n");
|
|
fprintf(fp, " ");
|
|
print_num(fp, 10, stats->rx_bytes);
|
|
print_num(fp, 8, stats->rx_packets);
|
|
print_num(fp, 7, stats->rx_errors);
|
|
print_num(fp, 8, stats->rx_dropped);
|
|
print_num(fp, 7, stats->rx_noroute);
|
|
fprintf(fp, "\n");
|
|
fprintf(fp, " TX: bytes packets errors dropped\n");
|
|
fprintf(fp, " ");
|
|
print_num(fp, 10, stats->tx_bytes);
|
|
print_num(fp, 8, stats->tx_packets);
|
|
print_num(fp, 7, stats->tx_errors);
|
|
print_num(fp, 7, stats->tx_dropped);
|
|
fprintf(fp, "\n");
|
|
}
|
|
|
|
static void print_af_stats_attr(FILE *fp, int ifindex, struct rtattr *attr)
|
|
{
|
|
bool if_printed = false;
|
|
struct rtattr *i;
|
|
int rem;
|
|
|
|
rem = RTA_PAYLOAD(attr);
|
|
for (i = RTA_DATA(attr); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) {
|
|
if (preferred_family != AF_UNSPEC &&
|
|
i->rta_type != preferred_family)
|
|
continue;
|
|
|
|
if (!if_printed) {
|
|
fprintf(fp, "%u: %s\n", ifindex,
|
|
ll_index_to_name(ifindex));
|
|
if_printed = true;
|
|
}
|
|
|
|
switch (i->rta_type) {
|
|
case AF_MPLS:
|
|
print_mpls_stats(fp, i);
|
|
break;
|
|
default:
|
|
fprintf(fp, " unknown af(%d)\n", i->rta_type);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
struct af_stats_ctx {
|
|
FILE *fp;
|
|
int ifindex;
|
|
};
|
|
|
|
static int print_af_stats(const struct sockaddr_nl *who,
|
|
struct nlmsghdr *n,
|
|
void *arg)
|
|
{
|
|
struct if_stats_msg *ifsm = NLMSG_DATA(n);
|
|
struct rtattr *tb[IFLA_STATS_MAX+1];
|
|
int len = n->nlmsg_len;
|
|
struct af_stats_ctx *ctx = arg;
|
|
FILE *fp = ctx->fp;
|
|
|
|
len -= NLMSG_LENGTH(sizeof(*ifsm));
|
|
if (len < 0) {
|
|
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
|
|
return -1;
|
|
}
|
|
|
|
if (ctx->ifindex && ifsm->ifindex != ctx->ifindex)
|
|
return 0;
|
|
|
|
parse_rtattr(tb, IFLA_STATS_MAX, IFLA_STATS_RTA(ifsm), len);
|
|
|
|
if (tb[IFLA_STATS_AF_SPEC])
|
|
print_af_stats_attr(fp, ifsm->ifindex, tb[IFLA_STATS_AF_SPEC]);
|
|
|
|
fflush(fp);
|
|
return 0;
|
|
}
|
|
|
|
static int iplink_afstats(int argc, char **argv)
|
|
{
|
|
__u32 filt_mask = IFLA_STATS_FILTER_BIT(IFLA_STATS_AF_SPEC);
|
|
const char *filter_dev = NULL;
|
|
struct af_stats_ctx ctx = {
|
|
.fp = stdout,
|
|
.ifindex = 0,
|
|
};
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "dev") == 0) {
|
|
NEXT_ARG();
|
|
if (filter_dev)
|
|
duparg2("dev", *argv);
|
|
filter_dev = *argv;
|
|
} else if (matches(*argv, "help") == 0) {
|
|
usage();
|
|
} else {
|
|
fprintf(stderr,
|
|
"Command \"%s\" is unknown, try \"ip link help\".\n",
|
|
*argv);
|
|
exit(-1);
|
|
}
|
|
|
|
argv++; argc--;
|
|
}
|
|
|
|
if (filter_dev) {
|
|
ctx.ifindex = ll_name_to_index(filter_dev);
|
|
if (ctx.ifindex <= 0) {
|
|
fprintf(stderr,
|
|
"Device \"%s\" does not exist.\n",
|
|
filter_dev);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (rtnl_wilddump_stats_req_filter(&rth, AF_UNSPEC,
|
|
RTM_GETSTATS,
|
|
filt_mask) < 0) {
|
|
perror("Cannont send dump request");
|
|
return 1;
|
|
}
|
|
|
|
if (rtnl_dump_filter(&rth, print_af_stats, &ctx) < 0) {
|
|
fprintf(stderr, "Dump terminated\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void do_help(int argc, char **argv)
|
|
{
|
|
struct link_util *lu = NULL;
|
|
|
|
if (argc <= 0) {
|
|
usage();
|
|
return;
|
|
}
|
|
|
|
lu = get_link_kind(*argv);
|
|
if (lu && lu->print_help)
|
|
lu->print_help(lu, argc-1, argv+1, stdout);
|
|
else
|
|
usage();
|
|
}
|
|
|
|
int do_iplink(int argc, char **argv)
|
|
{
|
|
if (argc < 1)
|
|
return ipaddr_list_link(0, NULL);
|
|
|
|
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, "xstats") == 0)
|
|
return iplink_ifla_xstats(argc-1, argv+1);
|
|
|
|
if (matches(*argv, "afstats") == 0) {
|
|
iplink_afstats(argc-1, argv+1);
|
|
return 0;
|
|
}
|
|
|
|
if (matches(*argv, "help") == 0) {
|
|
do_help(argc-1, argv+1);
|
|
return 0;
|
|
}
|
|
|
|
fprintf(stderr, "Command \"%s\" is unknown, try \"ip link help\".\n",
|
|
*argv);
|
|
exit(-1);
|
|
}
|