mirror of
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
synced 2024-11-17 06:53:26 +08:00
1489 lines
38 KiB
C
1489 lines
38 KiB
C
/*
|
|
* ipaddress.c "ip address".
|
|
*
|
|
* 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 <inttypes.h>
|
|
#include <fcntl.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/ioctl.h>
|
|
#include <errno.h>
|
|
#include <netinet/in.h>
|
|
#include <arpa/inet.h>
|
|
#include <string.h>
|
|
#include <fnmatch.h>
|
|
|
|
#include <linux/netdevice.h>
|
|
#include <linux/if_arp.h>
|
|
#include <linux/sockios.h>
|
|
|
|
#include "rt_names.h"
|
|
#include "utils.h"
|
|
#include "ll_map.h"
|
|
#include "ip_common.h"
|
|
|
|
enum {
|
|
IPADD_LIST,
|
|
IPADD_FLUSH,
|
|
IPADD_SAVE,
|
|
};
|
|
|
|
static struct
|
|
{
|
|
int ifindex;
|
|
int family;
|
|
int oneline;
|
|
int showqueue;
|
|
inet_prefix pfx;
|
|
int scope, scopemask;
|
|
int flags, flagmask;
|
|
int up;
|
|
char *label;
|
|
int flushed;
|
|
char *flushb;
|
|
int flushp;
|
|
int flushe;
|
|
int group;
|
|
} filter;
|
|
|
|
static int do_link;
|
|
|
|
static void usage(void) __attribute__((noreturn));
|
|
|
|
static void usage(void)
|
|
{
|
|
if (do_link) {
|
|
iplink_usage();
|
|
}
|
|
fprintf(stderr, "Usage: ip addr {add|change|replace} IFADDR dev STRING [ LIFETIME ]\n");
|
|
fprintf(stderr, " [ CONFFLAG-LIST ]\n");
|
|
fprintf(stderr, " ip addr del IFADDR dev STRING\n");
|
|
fprintf(stderr, " ip addr {show|save|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
|
|
fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ] [up]\n");
|
|
fprintf(stderr, " ip addr {showdump|restore}\n");
|
|
fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n");
|
|
fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n");
|
|
fprintf(stderr, " [ label STRING ] [ scope SCOPE-ID ]\n");
|
|
fprintf(stderr, "SCOPE-ID := [ host | link | global | NUMBER ]\n");
|
|
fprintf(stderr, "FLAG-LIST := [ FLAG-LIST ] FLAG\n");
|
|
fprintf(stderr, "FLAG := [ permanent | dynamic | secondary | primary |\n");
|
|
fprintf(stderr, " tentative | deprecated | dadfailed | temporary |\n");
|
|
fprintf(stderr, " CONFFLAG-LIST ]\n");
|
|
fprintf(stderr, "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n");
|
|
fprintf(stderr, "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute ]\n");
|
|
fprintf(stderr, "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n");
|
|
fprintf(stderr, "LFT := forever | SECONDS\n");
|
|
|
|
exit(-1);
|
|
}
|
|
|
|
static void print_link_flags(FILE *fp, unsigned flags, unsigned mdown)
|
|
{
|
|
fprintf(fp, "<");
|
|
if (flags & IFF_UP && !(flags & IFF_RUNNING))
|
|
fprintf(fp, "NO-CARRIER%s", flags ? "," : "");
|
|
flags &= ~IFF_RUNNING;
|
|
#define _PF(f) if (flags&IFF_##f) { \
|
|
flags &= ~IFF_##f ; \
|
|
fprintf(fp, #f "%s", flags ? "," : ""); }
|
|
_PF(LOOPBACK);
|
|
_PF(BROADCAST);
|
|
_PF(POINTOPOINT);
|
|
_PF(MULTICAST);
|
|
_PF(NOARP);
|
|
_PF(ALLMULTI);
|
|
_PF(PROMISC);
|
|
_PF(MASTER);
|
|
_PF(SLAVE);
|
|
_PF(DEBUG);
|
|
_PF(DYNAMIC);
|
|
_PF(AUTOMEDIA);
|
|
_PF(PORTSEL);
|
|
_PF(NOTRAILERS);
|
|
_PF(UP);
|
|
_PF(LOWER_UP);
|
|
_PF(DORMANT);
|
|
_PF(ECHO);
|
|
#undef _PF
|
|
if (flags)
|
|
fprintf(fp, "%x", flags);
|
|
if (mdown)
|
|
fprintf(fp, ",M-DOWN");
|
|
fprintf(fp, "> ");
|
|
}
|
|
|
|
static const char *oper_states[] = {
|
|
"UNKNOWN", "NOTPRESENT", "DOWN", "LOWERLAYERDOWN",
|
|
"TESTING", "DORMANT", "UP"
|
|
};
|
|
|
|
static void print_operstate(FILE *f, __u8 state)
|
|
{
|
|
if (state >= sizeof(oper_states)/sizeof(oper_states[0]))
|
|
fprintf(f, "state %#x ", state);
|
|
else
|
|
fprintf(f, "state %s ", oper_states[state]);
|
|
}
|
|
|
|
int get_operstate(const char *name)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof(oper_states)/sizeof(oper_states[0]); i++)
|
|
if (strcasecmp(name, oper_states[i]) == 0)
|
|
return i;
|
|
return -1;
|
|
}
|
|
|
|
static void print_queuelen(FILE *f, struct rtattr *tb[IFLA_MAX + 1])
|
|
{
|
|
int qlen;
|
|
|
|
if (tb[IFLA_TXQLEN])
|
|
qlen = *(int *)RTA_DATA(tb[IFLA_TXQLEN]);
|
|
else {
|
|
struct ifreq ifr;
|
|
int s = socket(AF_INET, SOCK_STREAM, 0);
|
|
|
|
if (s < 0)
|
|
return;
|
|
|
|
memset(&ifr, 0, sizeof(ifr));
|
|
strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME]));
|
|
if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
|
|
fprintf(f, "ioctl(SIOCGIFTXQLEN) failed: %s\n", strerror(errno));
|
|
close(s);
|
|
return;
|
|
}
|
|
close(s);
|
|
qlen = ifr.ifr_qlen;
|
|
}
|
|
if (qlen)
|
|
fprintf(f, "qlen %d", qlen);
|
|
}
|
|
|
|
static const char *link_modes[] = {
|
|
"DEFAULT", "DORMANT"
|
|
};
|
|
|
|
static void print_linkmode(FILE *f, struct rtattr *tb)
|
|
{
|
|
unsigned int mode = rta_getattr_u8(tb);
|
|
|
|
if (mode >= sizeof(link_modes) / sizeof(link_modes[0]))
|
|
fprintf(f, "mode %d ", mode);
|
|
else
|
|
fprintf(f, "mode %s ", link_modes[mode]);
|
|
}
|
|
|
|
static void print_linktype(FILE *fp, struct rtattr *tb)
|
|
{
|
|
struct rtattr *linkinfo[IFLA_INFO_MAX+1];
|
|
struct link_util *lu;
|
|
char *kind;
|
|
|
|
parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb);
|
|
|
|
if (!linkinfo[IFLA_INFO_KIND])
|
|
return;
|
|
kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]);
|
|
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " %s ", kind);
|
|
|
|
lu = get_link_kind(kind);
|
|
if (!lu || !lu->print_opt)
|
|
return;
|
|
|
|
if (1) {
|
|
struct rtattr *attr[lu->maxattr+1], **data = NULL;
|
|
|
|
if (linkinfo[IFLA_INFO_DATA]) {
|
|
parse_rtattr_nested(attr, lu->maxattr,
|
|
linkinfo[IFLA_INFO_DATA]);
|
|
data = attr;
|
|
}
|
|
lu->print_opt(lu, fp, data);
|
|
|
|
if (linkinfo[IFLA_INFO_XSTATS] && show_stats &&
|
|
lu->print_xstats)
|
|
lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]);
|
|
}
|
|
}
|
|
|
|
static void print_vfinfo(FILE *fp, struct rtattr *vfinfo)
|
|
{
|
|
struct ifla_vf_mac *vf_mac;
|
|
struct ifla_vf_vlan *vf_vlan;
|
|
struct ifla_vf_tx_rate *vf_tx_rate;
|
|
struct ifla_vf_spoofchk *vf_spoofchk;
|
|
struct ifla_vf_link_state *vf_linkstate;
|
|
struct rtattr *vf[IFLA_VF_MAX+1];
|
|
struct rtattr *tmp;
|
|
SPRINT_BUF(b1);
|
|
|
|
if (vfinfo->rta_type != IFLA_VF_INFO) {
|
|
fprintf(stderr, "BUG: rta type is %d\n", vfinfo->rta_type);
|
|
return;
|
|
}
|
|
|
|
parse_rtattr_nested(vf, IFLA_VF_MAX, vfinfo);
|
|
|
|
vf_mac = RTA_DATA(vf[IFLA_VF_MAC]);
|
|
vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]);
|
|
vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]);
|
|
|
|
/* Check if the spoof checking vf info type is supported by
|
|
* this kernel.
|
|
*/
|
|
tmp = (struct rtattr *)((char *)vf[IFLA_VF_TX_RATE] +
|
|
vf[IFLA_VF_TX_RATE]->rta_len);
|
|
|
|
if (tmp->rta_type != IFLA_VF_SPOOFCHK)
|
|
vf_spoofchk = NULL;
|
|
else
|
|
vf_spoofchk = RTA_DATA(vf[IFLA_VF_SPOOFCHK]);
|
|
|
|
if (vf_spoofchk) {
|
|
/* Check if the link state vf info type is supported by
|
|
* this kernel.
|
|
*/
|
|
tmp = (struct rtattr *)((char *)vf[IFLA_VF_SPOOFCHK] +
|
|
vf[IFLA_VF_SPOOFCHK]->rta_len);
|
|
|
|
if (tmp->rta_type != IFLA_VF_LINK_STATE)
|
|
vf_linkstate = NULL;
|
|
else
|
|
vf_linkstate = RTA_DATA(vf[IFLA_VF_LINK_STATE]);
|
|
} else
|
|
vf_linkstate = NULL;
|
|
|
|
fprintf(fp, "\n vf %d MAC %s", vf_mac->vf,
|
|
ll_addr_n2a((unsigned char *)&vf_mac->mac,
|
|
ETH_ALEN, 0, b1, sizeof(b1)));
|
|
if (vf_vlan->vlan)
|
|
fprintf(fp, ", vlan %d", vf_vlan->vlan);
|
|
if (vf_vlan->qos)
|
|
fprintf(fp, ", qos %d", vf_vlan->qos);
|
|
if (vf_tx_rate->rate)
|
|
fprintf(fp, ", tx rate %d (Mbps)", vf_tx_rate->rate);
|
|
if (vf_spoofchk && vf_spoofchk->setting != -1) {
|
|
if (vf_spoofchk->setting)
|
|
fprintf(fp, ", spoof checking on");
|
|
else
|
|
fprintf(fp, ", spoof checking off");
|
|
}
|
|
if (vf_linkstate) {
|
|
if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO)
|
|
fprintf(fp, ", link-state auto");
|
|
else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE)
|
|
fprintf(fp, ", link-state enable");
|
|
else
|
|
fprintf(fp, ", link-state disable");
|
|
}
|
|
}
|
|
|
|
static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s) {
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
|
|
s->rx_compressed ? "compressed" : "", _SL_);
|
|
fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
|
|
(uint64_t)s->rx_bytes,
|
|
(uint64_t)s->rx_packets,
|
|
(uint64_t)s->rx_errors,
|
|
(uint64_t)s->rx_dropped,
|
|
(uint64_t)s->rx_over_errors,
|
|
(uint64_t)s->multicast);
|
|
if (s->rx_compressed)
|
|
fprintf(fp, " %-7"PRIu64"",
|
|
(uint64_t)s->rx_compressed);
|
|
if (show_stats > 1) {
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
|
|
fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
|
|
(uint64_t)s->rx_length_errors,
|
|
(uint64_t)s->rx_crc_errors,
|
|
(uint64_t)s->rx_frame_errors,
|
|
(uint64_t)s->rx_fifo_errors,
|
|
(uint64_t)s->rx_missed_errors);
|
|
}
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
|
|
(uint64_t)s->tx_compressed ? "compressed" : "", _SL_);
|
|
fprintf(fp, " %-10"PRIu64" %-8"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
|
|
(uint64_t)s->tx_bytes,
|
|
(uint64_t)s->tx_packets,
|
|
(uint64_t)s->tx_errors,
|
|
(uint64_t)s->tx_dropped,
|
|
(uint64_t)s->tx_carrier_errors,
|
|
(uint64_t)s->collisions);
|
|
if (s->tx_compressed)
|
|
fprintf(fp, " %-7"PRIu64"",
|
|
(uint64_t)s->tx_compressed);
|
|
if (show_stats > 1) {
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
|
|
fprintf(fp, " %-7"PRIu64" %-7"PRIu64" %-7"PRIu64" %-7"PRIu64"",
|
|
(uint64_t)s->tx_aborted_errors,
|
|
(uint64_t)s->tx_fifo_errors,
|
|
(uint64_t)s->tx_window_errors,
|
|
(uint64_t)s->tx_heartbeat_errors);
|
|
}
|
|
}
|
|
|
|
static void print_link_stats(FILE *fp, const struct rtnl_link_stats *s)
|
|
{
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s",
|
|
s->rx_compressed ? "compressed" : "", _SL_);
|
|
fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
|
|
s->rx_bytes, s->rx_packets, s->rx_errors,
|
|
s->rx_dropped, s->rx_over_errors,
|
|
s->multicast
|
|
);
|
|
if (s->rx_compressed)
|
|
fprintf(fp, " %-7u", s->rx_compressed);
|
|
if (show_stats > 1) {
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " RX errors: length crc frame fifo missed%s", _SL_);
|
|
fprintf(fp, " %-7u %-7u %-7u %-7u %-7u",
|
|
s->rx_length_errors,
|
|
s->rx_crc_errors,
|
|
s->rx_frame_errors,
|
|
s->rx_fifo_errors,
|
|
s->rx_missed_errors
|
|
);
|
|
}
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s",
|
|
s->tx_compressed ? "compressed" : "", _SL_);
|
|
fprintf(fp, " %-10u %-8u %-7u %-7u %-7u %-7u",
|
|
s->tx_bytes, s->tx_packets, s->tx_errors,
|
|
s->tx_dropped, s->tx_carrier_errors, s->collisions);
|
|
if (s->tx_compressed)
|
|
fprintf(fp, " %-7u", s->tx_compressed);
|
|
if (show_stats > 1) {
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " TX errors: aborted fifo window heartbeat%s", _SL_);
|
|
fprintf(fp, " %-7u %-7u %-7u %-7u",
|
|
s->tx_aborted_errors,
|
|
s->tx_fifo_errors,
|
|
s->tx_window_errors,
|
|
s->tx_heartbeat_errors
|
|
);
|
|
}
|
|
}
|
|
|
|
int print_linkinfo(const struct sockaddr_nl *who,
|
|
struct nlmsghdr *n, void *arg)
|
|
{
|
|
FILE *fp = (FILE*)arg;
|
|
struct ifinfomsg *ifi = NLMSG_DATA(n);
|
|
struct rtattr * tb[IFLA_MAX+1];
|
|
int len = n->nlmsg_len;
|
|
unsigned m_flag = 0;
|
|
|
|
if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK)
|
|
return 0;
|
|
|
|
len -= NLMSG_LENGTH(sizeof(*ifi));
|
|
if (len < 0)
|
|
return -1;
|
|
|
|
if (filter.ifindex && ifi->ifi_index != filter.ifindex)
|
|
return 0;
|
|
if (filter.up && !(ifi->ifi_flags&IFF_UP))
|
|
return 0;
|
|
|
|
parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len);
|
|
if (tb[IFLA_IFNAME] == NULL) {
|
|
fprintf(stderr, "BUG: device with ifindex %d has nil ifname\n", ifi->ifi_index);
|
|
}
|
|
if (filter.label &&
|
|
(!filter.family || filter.family == AF_PACKET) &&
|
|
fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
|
|
return 0;
|
|
|
|
if (tb[IFLA_GROUP]) {
|
|
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
|
|
if (filter.group != -1 && group != filter.group)
|
|
return -1;
|
|
}
|
|
|
|
if (n->nlmsg_type == RTM_DELLINK)
|
|
fprintf(fp, "Deleted ");
|
|
|
|
fprintf(fp, "%d: %s", ifi->ifi_index,
|
|
tb[IFLA_IFNAME] ? rta_getattr_str(tb[IFLA_IFNAME]) : "<nil>");
|
|
|
|
if (tb[IFLA_LINK]) {
|
|
SPRINT_BUF(b1);
|
|
int iflink = *(int*)RTA_DATA(tb[IFLA_LINK]);
|
|
if (iflink == 0)
|
|
fprintf(fp, "@NONE: ");
|
|
else {
|
|
fprintf(fp, "@%s: ", ll_idx_n2a(iflink, b1));
|
|
m_flag = ll_index_to_flags(iflink);
|
|
m_flag = !(m_flag & IFF_UP);
|
|
}
|
|
} else {
|
|
fprintf(fp, ": ");
|
|
}
|
|
print_link_flags(fp, ifi->ifi_flags, m_flag);
|
|
|
|
if (tb[IFLA_MTU])
|
|
fprintf(fp, "mtu %u ", *(int*)RTA_DATA(tb[IFLA_MTU]));
|
|
if (tb[IFLA_QDISC])
|
|
fprintf(fp, "qdisc %s ", rta_getattr_str(tb[IFLA_QDISC]));
|
|
if (tb[IFLA_MASTER]) {
|
|
SPRINT_BUF(b1);
|
|
fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
|
|
}
|
|
|
|
if (tb[IFLA_OPERSTATE])
|
|
print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE]));
|
|
|
|
if (do_link && tb[IFLA_LINKMODE])
|
|
print_linkmode(fp, tb[IFLA_LINKMODE]);
|
|
|
|
if (tb[IFLA_GROUP]) {
|
|
SPRINT_BUF(b1);
|
|
int group = *(int*)RTA_DATA(tb[IFLA_GROUP]);
|
|
fprintf(fp, "group %s ", rtnl_group_n2a(group, b1, sizeof(b1)));
|
|
}
|
|
|
|
if (filter.showqueue)
|
|
print_queuelen(fp, tb);
|
|
|
|
if (!filter.family || filter.family == AF_PACKET) {
|
|
SPRINT_BUF(b1);
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1)));
|
|
|
|
if (tb[IFLA_ADDRESS]) {
|
|
fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]),
|
|
RTA_PAYLOAD(tb[IFLA_ADDRESS]),
|
|
ifi->ifi_type,
|
|
b1, sizeof(b1)));
|
|
}
|
|
if (tb[IFLA_BROADCAST]) {
|
|
if (ifi->ifi_flags&IFF_POINTOPOINT)
|
|
fprintf(fp, " peer ");
|
|
else
|
|
fprintf(fp, " brd ");
|
|
fprintf(fp, "%s", ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]),
|
|
RTA_PAYLOAD(tb[IFLA_BROADCAST]),
|
|
ifi->ifi_type,
|
|
b1, sizeof(b1)));
|
|
}
|
|
}
|
|
|
|
if (do_link && tb[IFLA_PROMISCUITY] && show_details)
|
|
fprintf(fp, " promiscuity %u ",
|
|
*(int*)RTA_DATA(tb[IFLA_PROMISCUITY]));
|
|
|
|
if (do_link && tb[IFLA_LINKINFO] && show_details)
|
|
print_linktype(fp, tb[IFLA_LINKINFO]);
|
|
|
|
if (do_link && tb[IFLA_IFALIAS]) {
|
|
fprintf(fp, "%s alias %s", _SL_,
|
|
rta_getattr_str(tb[IFLA_IFALIAS]));
|
|
}
|
|
|
|
if (do_link && show_stats) {
|
|
if (tb[IFLA_STATS64])
|
|
print_link_stats64(fp, RTA_DATA(tb[IFLA_STATS64]));
|
|
else if (tb[IFLA_STATS])
|
|
print_link_stats(fp, RTA_DATA(tb[IFLA_STATS]));
|
|
}
|
|
|
|
if (do_link && tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF]) {
|
|
struct rtattr *i, *vflist = tb[IFLA_VFINFO_LIST];
|
|
int rem = RTA_PAYLOAD(vflist);
|
|
for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem))
|
|
print_vfinfo(fp, i);
|
|
}
|
|
|
|
fprintf(fp, "\n");
|
|
fflush(fp);
|
|
return 0;
|
|
}
|
|
|
|
static int flush_update(void)
|
|
{
|
|
if (rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) {
|
|
perror("Failed to send flush request");
|
|
return -1;
|
|
}
|
|
filter.flushp = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int set_lifetime(unsigned int *lifetime, char *argv)
|
|
{
|
|
if (strcmp(argv, "forever") == 0)
|
|
*lifetime = INFINITY_LIFE_TIME;
|
|
else if (get_u32(lifetime, argv, 0))
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int get_ifa_flags(struct ifaddrmsg *ifa,
|
|
struct rtattr *ifa_flags_attr)
|
|
{
|
|
return ifa_flags_attr ? rta_getattr_u32(ifa_flags_attr) :
|
|
ifa->ifa_flags;
|
|
}
|
|
|
|
int print_addrinfo(const struct sockaddr_nl *who, struct nlmsghdr *n,
|
|
void *arg)
|
|
{
|
|
FILE *fp = (FILE*)arg;
|
|
struct ifaddrmsg *ifa = NLMSG_DATA(n);
|
|
int len = n->nlmsg_len;
|
|
int deprecated = 0;
|
|
/* Use local copy of ifa_flags to not interfere with filtering code */
|
|
unsigned int ifa_flags;
|
|
struct rtattr * rta_tb[IFA_MAX+1];
|
|
char abuf[256];
|
|
SPRINT_BUF(b1);
|
|
|
|
if (n->nlmsg_type != RTM_NEWADDR && n->nlmsg_type != RTM_DELADDR)
|
|
return 0;
|
|
len -= NLMSG_LENGTH(sizeof(*ifa));
|
|
if (len < 0) {
|
|
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
|
|
return -1;
|
|
}
|
|
|
|
if (filter.flushb && n->nlmsg_type != RTM_NEWADDR)
|
|
return 0;
|
|
|
|
parse_rtattr(rta_tb, IFA_MAX, IFA_RTA(ifa), n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifa)));
|
|
|
|
ifa_flags = get_ifa_flags(ifa, rta_tb[IFA_FLAGS]);
|
|
|
|
if (!rta_tb[IFA_LOCAL])
|
|
rta_tb[IFA_LOCAL] = rta_tb[IFA_ADDRESS];
|
|
if (!rta_tb[IFA_ADDRESS])
|
|
rta_tb[IFA_ADDRESS] = rta_tb[IFA_LOCAL];
|
|
|
|
if (filter.ifindex && filter.ifindex != ifa->ifa_index)
|
|
return 0;
|
|
if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
|
|
return 0;
|
|
if ((filter.flags ^ ifa_flags) & filter.flagmask)
|
|
return 0;
|
|
if (filter.label) {
|
|
SPRINT_BUF(b1);
|
|
const char *label;
|
|
if (rta_tb[IFA_LABEL])
|
|
label = RTA_DATA(rta_tb[IFA_LABEL]);
|
|
else
|
|
label = ll_idx_n2a(ifa->ifa_index, b1);
|
|
if (fnmatch(filter.label, label, 0) != 0)
|
|
return 0;
|
|
}
|
|
if (filter.pfx.family) {
|
|
if (rta_tb[IFA_LOCAL]) {
|
|
inet_prefix dst;
|
|
memset(&dst, 0, sizeof(dst));
|
|
dst.family = ifa->ifa_family;
|
|
memcpy(&dst.data, RTA_DATA(rta_tb[IFA_LOCAL]), RTA_PAYLOAD(rta_tb[IFA_LOCAL]));
|
|
if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (filter.family && filter.family != ifa->ifa_family)
|
|
return 0;
|
|
|
|
if (filter.flushb) {
|
|
struct nlmsghdr *fn;
|
|
if (NLMSG_ALIGN(filter.flushp) + n->nlmsg_len > filter.flushe) {
|
|
if (flush_update())
|
|
return -1;
|
|
}
|
|
fn = (struct nlmsghdr*)(filter.flushb + NLMSG_ALIGN(filter.flushp));
|
|
memcpy(fn, n, n->nlmsg_len);
|
|
fn->nlmsg_type = RTM_DELADDR;
|
|
fn->nlmsg_flags = NLM_F_REQUEST;
|
|
fn->nlmsg_seq = ++rth.seq;
|
|
filter.flushp = (((char*)fn) + n->nlmsg_len) - filter.flushb;
|
|
filter.flushed++;
|
|
if (show_stats < 2)
|
|
return 0;
|
|
}
|
|
|
|
if (n->nlmsg_type == RTM_DELADDR)
|
|
fprintf(fp, "Deleted ");
|
|
|
|
if (filter.oneline || filter.flushb)
|
|
fprintf(fp, "%u: %s", ifa->ifa_index, ll_index_to_name(ifa->ifa_index));
|
|
if (ifa->ifa_family == AF_INET)
|
|
fprintf(fp, " inet ");
|
|
else if (ifa->ifa_family == AF_INET6)
|
|
fprintf(fp, " inet6 ");
|
|
else if (ifa->ifa_family == AF_DECnet)
|
|
fprintf(fp, " dnet ");
|
|
else if (ifa->ifa_family == AF_IPX)
|
|
fprintf(fp, " ipx ");
|
|
else
|
|
fprintf(fp, " family %d ", ifa->ifa_family);
|
|
|
|
if (rta_tb[IFA_LOCAL]) {
|
|
fprintf(fp, "%s", format_host(ifa->ifa_family,
|
|
RTA_PAYLOAD(rta_tb[IFA_LOCAL]),
|
|
RTA_DATA(rta_tb[IFA_LOCAL]),
|
|
abuf, sizeof(abuf)));
|
|
|
|
if (rta_tb[IFA_ADDRESS] == NULL ||
|
|
memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), RTA_DATA(rta_tb[IFA_LOCAL]),
|
|
ifa->ifa_family == AF_INET ? 4 : 16) == 0) {
|
|
fprintf(fp, "/%d ", ifa->ifa_prefixlen);
|
|
} else {
|
|
fprintf(fp, " peer %s/%d ",
|
|
format_host(ifa->ifa_family,
|
|
RTA_PAYLOAD(rta_tb[IFA_ADDRESS]),
|
|
RTA_DATA(rta_tb[IFA_ADDRESS]),
|
|
abuf, sizeof(abuf)),
|
|
ifa->ifa_prefixlen);
|
|
}
|
|
}
|
|
|
|
if (rta_tb[IFA_BROADCAST]) {
|
|
fprintf(fp, "brd %s ",
|
|
format_host(ifa->ifa_family,
|
|
RTA_PAYLOAD(rta_tb[IFA_BROADCAST]),
|
|
RTA_DATA(rta_tb[IFA_BROADCAST]),
|
|
abuf, sizeof(abuf)));
|
|
}
|
|
if (rta_tb[IFA_ANYCAST]) {
|
|
fprintf(fp, "any %s ",
|
|
format_host(ifa->ifa_family,
|
|
RTA_PAYLOAD(rta_tb[IFA_ANYCAST]),
|
|
RTA_DATA(rta_tb[IFA_ANYCAST]),
|
|
abuf, sizeof(abuf)));
|
|
}
|
|
fprintf(fp, "scope %s ", rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1)));
|
|
if (ifa_flags & IFA_F_SECONDARY) {
|
|
ifa_flags &= ~IFA_F_SECONDARY;
|
|
if (ifa->ifa_family == AF_INET6)
|
|
fprintf(fp, "temporary ");
|
|
else
|
|
fprintf(fp, "secondary ");
|
|
}
|
|
if (ifa_flags & IFA_F_TENTATIVE) {
|
|
ifa_flags &= ~IFA_F_TENTATIVE;
|
|
fprintf(fp, "tentative ");
|
|
}
|
|
if (ifa_flags & IFA_F_DEPRECATED) {
|
|
ifa_flags &= ~IFA_F_DEPRECATED;
|
|
deprecated = 1;
|
|
fprintf(fp, "deprecated ");
|
|
}
|
|
if (ifa_flags & IFA_F_HOMEADDRESS) {
|
|
ifa_flags &= ~IFA_F_HOMEADDRESS;
|
|
fprintf(fp, "home ");
|
|
}
|
|
if (ifa_flags & IFA_F_NODAD) {
|
|
ifa_flags &= ~IFA_F_NODAD;
|
|
fprintf(fp, "nodad ");
|
|
}
|
|
if (ifa_flags & IFA_F_MANAGETEMPADDR) {
|
|
ifa_flags &= ~IFA_F_MANAGETEMPADDR;
|
|
fprintf(fp, "mngtmpaddr ");
|
|
}
|
|
if (ifa_flags & IFA_F_NOPREFIXROUTE) {
|
|
ifa_flags &= ~IFA_F_NOPREFIXROUTE;
|
|
fprintf(fp, "noprefixroute ");
|
|
}
|
|
if (!(ifa_flags & IFA_F_PERMANENT)) {
|
|
fprintf(fp, "dynamic ");
|
|
} else
|
|
ifa_flags &= ~IFA_F_PERMANENT;
|
|
if (ifa_flags & IFA_F_DADFAILED) {
|
|
ifa_flags &= ~IFA_F_DADFAILED;
|
|
fprintf(fp, "dadfailed ");
|
|
}
|
|
if (ifa_flags)
|
|
fprintf(fp, "flags %02x ", ifa_flags);
|
|
if (rta_tb[IFA_LABEL])
|
|
fprintf(fp, "%s", rta_getattr_str(rta_tb[IFA_LABEL]));
|
|
if (rta_tb[IFA_CACHEINFO]) {
|
|
struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
|
|
fprintf(fp, "%s", _SL_);
|
|
fprintf(fp, " valid_lft ");
|
|
if (ci->ifa_valid == INFINITY_LIFE_TIME)
|
|
fprintf(fp, "forever");
|
|
else
|
|
fprintf(fp, "%usec", ci->ifa_valid);
|
|
fprintf(fp, " preferred_lft ");
|
|
if (ci->ifa_prefered == INFINITY_LIFE_TIME)
|
|
fprintf(fp, "forever");
|
|
else {
|
|
if (deprecated)
|
|
fprintf(fp, "%dsec", ci->ifa_prefered);
|
|
else
|
|
fprintf(fp, "%usec", ci->ifa_prefered);
|
|
}
|
|
}
|
|
fprintf(fp, "\n");
|
|
fflush(fp);
|
|
return 0;
|
|
}
|
|
|
|
static int print_addrinfo_primary(const struct sockaddr_nl *who,
|
|
struct nlmsghdr *n, void *arg)
|
|
{
|
|
struct ifaddrmsg *ifa = NLMSG_DATA(n);
|
|
|
|
if (ifa->ifa_flags & IFA_F_SECONDARY)
|
|
return 0;
|
|
|
|
return print_addrinfo(who, n, arg);
|
|
}
|
|
|
|
static int print_addrinfo_secondary(const struct sockaddr_nl *who,
|
|
struct nlmsghdr *n, void *arg)
|
|
{
|
|
struct ifaddrmsg *ifa = NLMSG_DATA(n);
|
|
|
|
if (!(ifa->ifa_flags & IFA_F_SECONDARY))
|
|
return 0;
|
|
|
|
return print_addrinfo(who, n, arg);
|
|
}
|
|
|
|
struct nlmsg_list
|
|
{
|
|
struct nlmsg_list *next;
|
|
struct nlmsghdr h;
|
|
};
|
|
|
|
struct nlmsg_chain
|
|
{
|
|
struct nlmsg_list *head;
|
|
struct nlmsg_list *tail;
|
|
};
|
|
|
|
static int print_selected_addrinfo(int ifindex, struct nlmsg_list *ainfo, FILE *fp)
|
|
{
|
|
for ( ;ainfo ; ainfo = ainfo->next) {
|
|
struct nlmsghdr *n = &ainfo->h;
|
|
struct ifaddrmsg *ifa = NLMSG_DATA(n);
|
|
|
|
if (n->nlmsg_type != RTM_NEWADDR)
|
|
continue;
|
|
|
|
if (n->nlmsg_len < NLMSG_LENGTH(sizeof(ifa)))
|
|
return -1;
|
|
|
|
if (ifa->ifa_index != ifindex ||
|
|
(filter.family && filter.family != ifa->ifa_family))
|
|
continue;
|
|
|
|
print_addrinfo(NULL, n, fp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int store_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
|
|
void *arg)
|
|
{
|
|
struct nlmsg_chain *lchain = (struct nlmsg_chain *)arg;
|
|
struct nlmsg_list *h;
|
|
|
|
h = malloc(n->nlmsg_len+sizeof(void*));
|
|
if (h == NULL)
|
|
return -1;
|
|
|
|
memcpy(&h->h, n, n->nlmsg_len);
|
|
h->next = NULL;
|
|
|
|
if (lchain->tail)
|
|
lchain->tail->next = h;
|
|
else
|
|
lchain->head = h;
|
|
lchain->tail = h;
|
|
|
|
ll_remember_index(who, n, NULL);
|
|
return 0;
|
|
}
|
|
|
|
static __u32 ipadd_dump_magic = 0x47361222;
|
|
|
|
static int ipadd_save_prep(void)
|
|
{
|
|
int ret;
|
|
|
|
if (isatty(STDOUT_FILENO)) {
|
|
fprintf(stderr, "Not sending a binary stream to stdout\n");
|
|
return -1;
|
|
}
|
|
|
|
ret = write(STDOUT_FILENO, &ipadd_dump_magic, sizeof(ipadd_dump_magic));
|
|
if (ret != sizeof(ipadd_dump_magic)) {
|
|
fprintf(stderr, "Can't write magic to dump file\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ipadd_dump_check_magic(void)
|
|
{
|
|
int ret;
|
|
__u32 magic = 0;
|
|
|
|
if (isatty(STDIN_FILENO)) {
|
|
fprintf(stderr, "Can't restore addr dump from a terminal\n");
|
|
return -1;
|
|
}
|
|
|
|
ret = fread(&magic, sizeof(magic), 1, stdin);
|
|
if (magic != ipadd_dump_magic) {
|
|
fprintf(stderr, "Magic mismatch (%d elems, %x magic)\n", ret, magic);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int save_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n,
|
|
void *arg)
|
|
{
|
|
int ret;
|
|
|
|
ret = write(STDOUT_FILENO, n, n->nlmsg_len);
|
|
if ((ret > 0) && (ret != n->nlmsg_len)) {
|
|
fprintf(stderr, "Short write while saving nlmsg\n");
|
|
ret = -EIO;
|
|
}
|
|
|
|
return ret == n->nlmsg_len ? 0 : ret;
|
|
}
|
|
|
|
static int show_handler(const struct sockaddr_nl *nl, struct nlmsghdr *n, void *arg)
|
|
{
|
|
struct ifaddrmsg *ifa = NLMSG_DATA(n);
|
|
|
|
printf("if%d:\n", ifa->ifa_index);
|
|
print_addrinfo(NULL, n, stdout);
|
|
return 0;
|
|
}
|
|
|
|
static int ipaddr_showdump(void)
|
|
{
|
|
if (ipadd_dump_check_magic())
|
|
exit(-1);
|
|
|
|
exit(rtnl_from_file(stdin, &show_handler, NULL));
|
|
}
|
|
|
|
static int restore_handler(const struct sockaddr_nl *nl, struct nlmsghdr *n, void *arg)
|
|
{
|
|
int ret;
|
|
|
|
n->nlmsg_flags |= NLM_F_REQUEST | NLM_F_CREATE | NLM_F_ACK;
|
|
|
|
ll_init_map(&rth);
|
|
|
|
ret = rtnl_talk(&rth, n, 0, 0, n);
|
|
if ((ret < 0) && (errno == EEXIST))
|
|
ret = 0;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int ipaddr_restore(void)
|
|
{
|
|
if (ipadd_dump_check_magic())
|
|
exit(-1);
|
|
|
|
exit(rtnl_from_file(stdin, &restore_handler, NULL));
|
|
}
|
|
|
|
static void free_nlmsg_chain(struct nlmsg_chain *info)
|
|
{
|
|
struct nlmsg_list *l, *n;
|
|
|
|
for (l = info->head; l; l = n) {
|
|
n = l->next;
|
|
free(l);
|
|
}
|
|
}
|
|
|
|
static void ipaddr_filter(struct nlmsg_chain *linfo, struct nlmsg_chain *ainfo)
|
|
{
|
|
struct nlmsg_list *l, **lp;
|
|
|
|
lp = &linfo->head;
|
|
while ( (l = *lp) != NULL) {
|
|
int ok = 0;
|
|
int missing_net_address = 1;
|
|
struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
|
|
struct nlmsg_list *a;
|
|
|
|
for (a = ainfo->head; a; a = a->next) {
|
|
struct nlmsghdr *n = &a->h;
|
|
struct ifaddrmsg *ifa = NLMSG_DATA(n);
|
|
struct rtattr *tb[IFA_MAX + 1];
|
|
unsigned int ifa_flags;
|
|
|
|
if (ifa->ifa_index != ifi->ifi_index)
|
|
continue;
|
|
missing_net_address = 0;
|
|
if (filter.family && filter.family != ifa->ifa_family)
|
|
continue;
|
|
if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
|
|
continue;
|
|
|
|
parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
|
|
ifa_flags = get_ifa_flags(ifa, tb[IFA_FLAGS]);
|
|
|
|
if ((filter.flags ^ ifa_flags) & filter.flagmask)
|
|
continue;
|
|
if (filter.pfx.family || filter.label) {
|
|
if (!tb[IFA_LOCAL])
|
|
tb[IFA_LOCAL] = tb[IFA_ADDRESS];
|
|
|
|
if (filter.pfx.family && tb[IFA_LOCAL]) {
|
|
inet_prefix dst;
|
|
memset(&dst, 0, sizeof(dst));
|
|
dst.family = ifa->ifa_family;
|
|
memcpy(&dst.data, RTA_DATA(tb[IFA_LOCAL]), RTA_PAYLOAD(tb[IFA_LOCAL]));
|
|
if (inet_addr_match(&dst, &filter.pfx, filter.pfx.bitlen))
|
|
continue;
|
|
}
|
|
if (filter.label) {
|
|
SPRINT_BUF(b1);
|
|
const char *label;
|
|
if (tb[IFA_LABEL])
|
|
label = RTA_DATA(tb[IFA_LABEL]);
|
|
else
|
|
label = ll_idx_n2a(ifa->ifa_index, b1);
|
|
if (fnmatch(filter.label, label, 0) != 0)
|
|
continue;
|
|
}
|
|
}
|
|
|
|
ok = 1;
|
|
break;
|
|
}
|
|
if (missing_net_address &&
|
|
(filter.family == AF_UNSPEC || filter.family == AF_PACKET))
|
|
ok = 1;
|
|
if (!ok) {
|
|
*lp = l->next;
|
|
free(l);
|
|
} else
|
|
lp = &l->next;
|
|
}
|
|
}
|
|
|
|
static int ipaddr_flush(void)
|
|
{
|
|
int round = 0;
|
|
char flushb[4096-512];
|
|
|
|
filter.flushb = flushb;
|
|
filter.flushp = 0;
|
|
filter.flushe = sizeof(flushb);
|
|
|
|
while ((max_flush_loops == 0) || (round < max_flush_loops)) {
|
|
const struct rtnl_dump_filter_arg a[3] = {
|
|
{
|
|
.filter = print_addrinfo_secondary,
|
|
.arg1 = stdout,
|
|
},
|
|
{
|
|
.filter = print_addrinfo_primary,
|
|
.arg1 = stdout,
|
|
},
|
|
{
|
|
.filter = NULL,
|
|
.arg1 = NULL,
|
|
},
|
|
};
|
|
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
|
|
perror("Cannot send dump request");
|
|
exit(1);
|
|
}
|
|
filter.flushed = 0;
|
|
if (rtnl_dump_filter_l(&rth, a) < 0) {
|
|
fprintf(stderr, "Flush terminated\n");
|
|
exit(1);
|
|
}
|
|
if (filter.flushed == 0) {
|
|
flush_done:
|
|
if (show_stats) {
|
|
if (round == 0)
|
|
printf("Nothing to flush.\n");
|
|
else
|
|
printf("*** Flush is complete after %d round%s ***\n", round, round>1?"s":"");
|
|
}
|
|
fflush(stdout);
|
|
return 0;
|
|
}
|
|
round++;
|
|
if (flush_update() < 0)
|
|
return 1;
|
|
|
|
if (show_stats) {
|
|
printf("\n*** Round %d, deleting %d addresses ***\n", round, filter.flushed);
|
|
fflush(stdout);
|
|
}
|
|
|
|
/* If we are flushing, and specifying primary, then we
|
|
* want to flush only a single round. Otherwise, we'll
|
|
* start flushing secondaries that were promoted to
|
|
* primaries.
|
|
*/
|
|
if (!(filter.flags & IFA_F_SECONDARY) && (filter.flagmask & IFA_F_SECONDARY))
|
|
goto flush_done;
|
|
}
|
|
fprintf(stderr, "*** Flush remains incomplete after %d rounds. ***\n", max_flush_loops);
|
|
fflush(stderr);
|
|
return 1;
|
|
}
|
|
|
|
static int ipaddr_list_flush_or_save(int argc, char **argv, int action)
|
|
{
|
|
struct nlmsg_chain linfo = { NULL, NULL};
|
|
struct nlmsg_chain ainfo = { NULL, NULL};
|
|
struct nlmsg_list *l;
|
|
char *filter_dev = NULL;
|
|
int no_link = 0;
|
|
|
|
ipaddr_reset_filter(oneline);
|
|
filter.showqueue = 1;
|
|
|
|
if (filter.family == AF_UNSPEC)
|
|
filter.family = preferred_family;
|
|
|
|
filter.group = -1;
|
|
|
|
if (action == IPADD_FLUSH) {
|
|
if (argc <= 0) {
|
|
fprintf(stderr, "Flush requires arguments.\n");
|
|
|
|
return -1;
|
|
}
|
|
if (filter.family == AF_PACKET) {
|
|
fprintf(stderr, "Cannot flush link addresses.\n");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "to") == 0) {
|
|
NEXT_ARG();
|
|
get_prefix(&filter.pfx, *argv, filter.family);
|
|
if (filter.family == AF_UNSPEC)
|
|
filter.family = filter.pfx.family;
|
|
} else if (strcmp(*argv, "scope") == 0) {
|
|
unsigned scope = 0;
|
|
NEXT_ARG();
|
|
filter.scopemask = -1;
|
|
if (rtnl_rtscope_a2n(&scope, *argv)) {
|
|
if (strcmp(*argv, "all") != 0)
|
|
invarg("invalid \"scope\"\n", *argv);
|
|
scope = RT_SCOPE_NOWHERE;
|
|
filter.scopemask = 0;
|
|
}
|
|
filter.scope = scope;
|
|
} else if (strcmp(*argv, "up") == 0) {
|
|
filter.up = 1;
|
|
} else if (strcmp(*argv, "dynamic") == 0) {
|
|
filter.flags &= ~IFA_F_PERMANENT;
|
|
filter.flagmask |= IFA_F_PERMANENT;
|
|
} else if (strcmp(*argv, "permanent") == 0) {
|
|
filter.flags |= IFA_F_PERMANENT;
|
|
filter.flagmask |= IFA_F_PERMANENT;
|
|
} else if (strcmp(*argv, "secondary") == 0 ||
|
|
strcmp(*argv, "temporary") == 0) {
|
|
filter.flags |= IFA_F_SECONDARY;
|
|
filter.flagmask |= IFA_F_SECONDARY;
|
|
} else if (strcmp(*argv, "primary") == 0) {
|
|
filter.flags &= ~IFA_F_SECONDARY;
|
|
filter.flagmask |= IFA_F_SECONDARY;
|
|
} else if (strcmp(*argv, "tentative") == 0) {
|
|
filter.flags |= IFA_F_TENTATIVE;
|
|
filter.flagmask |= IFA_F_TENTATIVE;
|
|
} else if (strcmp(*argv, "deprecated") == 0) {
|
|
filter.flags |= IFA_F_DEPRECATED;
|
|
filter.flagmask |= IFA_F_DEPRECATED;
|
|
} else if (strcmp(*argv, "home") == 0) {
|
|
filter.flags |= IFA_F_HOMEADDRESS;
|
|
filter.flagmask |= IFA_F_HOMEADDRESS;
|
|
} else if (strcmp(*argv, "nodad") == 0) {
|
|
filter.flags |= IFA_F_NODAD;
|
|
filter.flagmask |= IFA_F_NODAD;
|
|
} else if (strcmp(*argv, "mngtmpaddr") == 0) {
|
|
filter.flags |= IFA_F_MANAGETEMPADDR;
|
|
filter.flagmask |= IFA_F_MANAGETEMPADDR;
|
|
} else if (strcmp(*argv, "noprefixroute") == 0) {
|
|
filter.flags |= IFA_F_NOPREFIXROUTE;
|
|
filter.flagmask |= IFA_F_NOPREFIXROUTE;
|
|
} else if (strcmp(*argv, "dadfailed") == 0) {
|
|
filter.flags |= IFA_F_DADFAILED;
|
|
filter.flagmask |= IFA_F_DADFAILED;
|
|
} else if (strcmp(*argv, "label") == 0) {
|
|
NEXT_ARG();
|
|
filter.label = *argv;
|
|
} else if (strcmp(*argv, "group") == 0) {
|
|
NEXT_ARG();
|
|
if (rtnl_group_a2n(&filter.group, *argv))
|
|
invarg("Invalid \"group\" value\n", *argv);
|
|
} else {
|
|
if (strcmp(*argv, "dev") == 0) {
|
|
NEXT_ARG();
|
|
}
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
if (filter_dev)
|
|
duparg2("dev", *argv);
|
|
filter_dev = *argv;
|
|
}
|
|
argv++; argc--;
|
|
}
|
|
|
|
if (filter_dev) {
|
|
filter.ifindex = ll_name_to_index(filter_dev);
|
|
if (filter.ifindex <= 0) {
|
|
fprintf(stderr, "Device \"%s\" does not exist.\n", filter_dev);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
if (action == IPADD_FLUSH)
|
|
return ipaddr_flush();
|
|
|
|
if (action == IPADD_SAVE) {
|
|
if (ipadd_save_prep())
|
|
exit(1);
|
|
|
|
if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETADDR) < 0) {
|
|
perror("Cannot send dump request");
|
|
exit(1);
|
|
}
|
|
|
|
if (rtnl_dump_filter(&rth, save_nlmsg, stdout) < 0) {
|
|
fprintf(stderr, "Save terminated\n");
|
|
exit(1);
|
|
}
|
|
|
|
exit(0);
|
|
}
|
|
|
|
if (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
|
|
perror("Cannot send dump request");
|
|
exit(1);
|
|
}
|
|
|
|
if (rtnl_dump_filter(&rth, store_nlmsg, &linfo) < 0) {
|
|
fprintf(stderr, "Dump terminated\n");
|
|
exit(1);
|
|
}
|
|
|
|
if (filter.family != AF_PACKET) {
|
|
if (filter.oneline)
|
|
no_link = 1;
|
|
|
|
if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
|
|
perror("Cannot send dump request");
|
|
exit(1);
|
|
}
|
|
|
|
if (rtnl_dump_filter(&rth, store_nlmsg, &ainfo) < 0) {
|
|
fprintf(stderr, "Dump terminated\n");
|
|
exit(1);
|
|
}
|
|
|
|
ipaddr_filter(&linfo, &ainfo);
|
|
}
|
|
|
|
for (l = linfo.head; l; l = l->next) {
|
|
if (no_link || print_linkinfo(NULL, &l->h, stdout) == 0) {
|
|
struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
|
|
if (filter.family != AF_PACKET)
|
|
print_selected_addrinfo(ifi->ifi_index,
|
|
ainfo.head, stdout);
|
|
}
|
|
}
|
|
fflush(stdout);
|
|
|
|
free_nlmsg_chain(&ainfo);
|
|
free_nlmsg_chain(&linfo);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ipaddr_list_link(int argc, char **argv)
|
|
{
|
|
preferred_family = AF_PACKET;
|
|
do_link = 1;
|
|
return ipaddr_list_flush_or_save(argc, argv, IPADD_LIST);
|
|
}
|
|
|
|
void ipaddr_reset_filter(int oneline)
|
|
{
|
|
memset(&filter, 0, sizeof(filter));
|
|
filter.oneline = oneline;
|
|
}
|
|
|
|
static int default_scope(inet_prefix *lcl)
|
|
{
|
|
if (lcl->family == AF_INET) {
|
|
if (lcl->bytelen >= 1 && *(__u8*)&lcl->data == 127)
|
|
return RT_SCOPE_HOST;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int ipaddr_modify(int cmd, int flags, int argc, char **argv)
|
|
{
|
|
struct {
|
|
struct nlmsghdr n;
|
|
struct ifaddrmsg ifa;
|
|
char buf[256];
|
|
} req;
|
|
char *d = NULL;
|
|
char *l = NULL;
|
|
char *lcl_arg = NULL;
|
|
char *valid_lftp = NULL;
|
|
char *preferred_lftp = NULL;
|
|
inet_prefix lcl;
|
|
inet_prefix peer;
|
|
int local_len = 0;
|
|
int peer_len = 0;
|
|
int brd_len = 0;
|
|
int any_len = 0;
|
|
int scoped = 0;
|
|
__u32 preferred_lft = INFINITY_LIFE_TIME;
|
|
__u32 valid_lft = INFINITY_LIFE_TIME;
|
|
struct ifa_cacheinfo cinfo;
|
|
unsigned int ifa_flags = 0;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
|
|
req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
|
|
req.n.nlmsg_flags = NLM_F_REQUEST | flags;
|
|
req.n.nlmsg_type = cmd;
|
|
req.ifa.ifa_family = preferred_family;
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "peer") == 0 ||
|
|
strcmp(*argv, "remote") == 0) {
|
|
NEXT_ARG();
|
|
|
|
if (peer_len)
|
|
duparg("peer", *argv);
|
|
get_prefix(&peer, *argv, req.ifa.ifa_family);
|
|
peer_len = peer.bytelen;
|
|
if (req.ifa.ifa_family == AF_UNSPEC)
|
|
req.ifa.ifa_family = peer.family;
|
|
addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &peer.data, peer.bytelen);
|
|
req.ifa.ifa_prefixlen = peer.bitlen;
|
|
} else if (matches(*argv, "broadcast") == 0 ||
|
|
strcmp(*argv, "brd") == 0) {
|
|
inet_prefix addr;
|
|
NEXT_ARG();
|
|
if (brd_len)
|
|
duparg("broadcast", *argv);
|
|
if (strcmp(*argv, "+") == 0)
|
|
brd_len = -1;
|
|
else if (strcmp(*argv, "-") == 0)
|
|
brd_len = -2;
|
|
else {
|
|
get_addr(&addr, *argv, req.ifa.ifa_family);
|
|
if (req.ifa.ifa_family == AF_UNSPEC)
|
|
req.ifa.ifa_family = addr.family;
|
|
addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &addr.data, addr.bytelen);
|
|
brd_len = addr.bytelen;
|
|
}
|
|
} else if (strcmp(*argv, "anycast") == 0) {
|
|
inet_prefix addr;
|
|
NEXT_ARG();
|
|
if (any_len)
|
|
duparg("anycast", *argv);
|
|
get_addr(&addr, *argv, req.ifa.ifa_family);
|
|
if (req.ifa.ifa_family == AF_UNSPEC)
|
|
req.ifa.ifa_family = addr.family;
|
|
addattr_l(&req.n, sizeof(req), IFA_ANYCAST, &addr.data, addr.bytelen);
|
|
any_len = addr.bytelen;
|
|
} else if (strcmp(*argv, "scope") == 0) {
|
|
unsigned scope = 0;
|
|
NEXT_ARG();
|
|
if (rtnl_rtscope_a2n(&scope, *argv))
|
|
invarg("invalid scope value.", *argv);
|
|
req.ifa.ifa_scope = scope;
|
|
scoped = 1;
|
|
} else if (strcmp(*argv, "dev") == 0) {
|
|
NEXT_ARG();
|
|
d = *argv;
|
|
} else if (strcmp(*argv, "label") == 0) {
|
|
NEXT_ARG();
|
|
l = *argv;
|
|
addattr_l(&req.n, sizeof(req), IFA_LABEL, l, strlen(l)+1);
|
|
} else if (matches(*argv, "valid_lft") == 0) {
|
|
if (valid_lftp)
|
|
duparg("valid_lft", *argv);
|
|
NEXT_ARG();
|
|
valid_lftp = *argv;
|
|
if (set_lifetime(&valid_lft, *argv))
|
|
invarg("valid_lft value", *argv);
|
|
} else if (matches(*argv, "preferred_lft") == 0) {
|
|
if (preferred_lftp)
|
|
duparg("preferred_lft", *argv);
|
|
NEXT_ARG();
|
|
preferred_lftp = *argv;
|
|
if (set_lifetime(&preferred_lft, *argv))
|
|
invarg("preferred_lft value", *argv);
|
|
} else if (strcmp(*argv, "home") == 0) {
|
|
ifa_flags |= IFA_F_HOMEADDRESS;
|
|
} else if (strcmp(*argv, "nodad") == 0) {
|
|
ifa_flags |= IFA_F_NODAD;
|
|
} else if (strcmp(*argv, "mngtmpaddr") == 0) {
|
|
ifa_flags |= IFA_F_MANAGETEMPADDR;
|
|
} else if (strcmp(*argv, "noprefixroute") == 0) {
|
|
ifa_flags |= IFA_F_NOPREFIXROUTE;
|
|
} else {
|
|
if (strcmp(*argv, "local") == 0) {
|
|
NEXT_ARG();
|
|
}
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
if (local_len)
|
|
duparg2("local", *argv);
|
|
lcl_arg = *argv;
|
|
get_prefix(&lcl, *argv, req.ifa.ifa_family);
|
|
if (req.ifa.ifa_family == AF_UNSPEC)
|
|
req.ifa.ifa_family = lcl.family;
|
|
addattr_l(&req.n, sizeof(req), IFA_LOCAL, &lcl.data, lcl.bytelen);
|
|
local_len = lcl.bytelen;
|
|
}
|
|
argc--; argv++;
|
|
}
|
|
req.ifa.ifa_flags = ifa_flags;
|
|
addattr32(&req.n, sizeof(req), IFA_FLAGS, ifa_flags);
|
|
|
|
if (d == NULL) {
|
|
fprintf(stderr, "Not enough information: \"dev\" argument is required.\n");
|
|
return -1;
|
|
}
|
|
if (l && matches(d, l) != 0) {
|
|
fprintf(stderr, "\"dev\" (%s) must match \"label\" (%s).\n", d, l);
|
|
return -1;
|
|
}
|
|
|
|
if (peer_len == 0 && local_len) {
|
|
if (cmd == RTM_DELADDR && lcl.family == AF_INET && !(lcl.flags & PREFIXLEN_SPECIFIED)) {
|
|
fprintf(stderr,
|
|
"Warning: Executing wildcard deletion to stay compatible with old scripts.\n" \
|
|
" Explicitly specify the prefix length (%s/%d) to avoid this warning.\n" \
|
|
" This special behaviour is likely to disappear in further releases,\n" \
|
|
" fix your scripts!\n", lcl_arg, local_len*8);
|
|
} else {
|
|
peer = lcl;
|
|
addattr_l(&req.n, sizeof(req), IFA_ADDRESS, &lcl.data, lcl.bytelen);
|
|
}
|
|
}
|
|
if (req.ifa.ifa_prefixlen == 0)
|
|
req.ifa.ifa_prefixlen = lcl.bitlen;
|
|
|
|
if (brd_len < 0 && cmd != RTM_DELADDR) {
|
|
inet_prefix brd;
|
|
int i;
|
|
if (req.ifa.ifa_family != AF_INET) {
|
|
fprintf(stderr, "Broadcast can be set only for IPv4 addresses\n");
|
|
return -1;
|
|
}
|
|
brd = peer;
|
|
if (brd.bitlen <= 30) {
|
|
for (i=31; i>=brd.bitlen; i--) {
|
|
if (brd_len == -1)
|
|
brd.data[0] |= htonl(1<<(31-i));
|
|
else
|
|
brd.data[0] &= ~htonl(1<<(31-i));
|
|
}
|
|
addattr_l(&req.n, sizeof(req), IFA_BROADCAST, &brd.data, brd.bytelen);
|
|
brd_len = brd.bytelen;
|
|
}
|
|
}
|
|
if (!scoped && cmd != RTM_DELADDR)
|
|
req.ifa.ifa_scope = default_scope(&lcl);
|
|
|
|
if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
|
|
fprintf(stderr, "Cannot find device \"%s\"\n", d);
|
|
return -1;
|
|
}
|
|
|
|
if (valid_lftp || preferred_lftp) {
|
|
if (!valid_lft) {
|
|
fprintf(stderr, "valid_lft is zero\n");
|
|
return -1;
|
|
}
|
|
if (valid_lft < preferred_lft) {
|
|
fprintf(stderr, "preferred_lft is greater than valid_lft\n");
|
|
return -1;
|
|
}
|
|
|
|
memset(&cinfo, 0, sizeof(cinfo));
|
|
cinfo.ifa_prefered = preferred_lft;
|
|
cinfo.ifa_valid = valid_lft;
|
|
addattr_l(&req.n, sizeof(req), IFA_CACHEINFO, &cinfo,
|
|
sizeof(cinfo));
|
|
}
|
|
|
|
if (rtnl_talk(&rth, &req.n, 0, 0, NULL) < 0)
|
|
return -2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int do_ipaddr(int argc, char **argv)
|
|
{
|
|
if (argc < 1)
|
|
return ipaddr_list_flush_or_save(0, NULL, IPADD_LIST);
|
|
if (matches(*argv, "add") == 0)
|
|
return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_EXCL, argc-1, argv+1);
|
|
if (matches(*argv, "change") == 0 ||
|
|
strcmp(*argv, "chg") == 0)
|
|
return ipaddr_modify(RTM_NEWADDR, NLM_F_REPLACE, argc-1, argv+1);
|
|
if (matches(*argv, "replace") == 0)
|
|
return ipaddr_modify(RTM_NEWADDR, NLM_F_CREATE|NLM_F_REPLACE, argc-1, argv+1);
|
|
if (matches(*argv, "delete") == 0)
|
|
return ipaddr_modify(RTM_DELADDR, 0, argc-1, argv+1);
|
|
if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
|
|
|| matches(*argv, "lst") == 0)
|
|
return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_LIST);
|
|
if (matches(*argv, "flush") == 0)
|
|
return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_FLUSH);
|
|
if (matches(*argv, "save") == 0)
|
|
return ipaddr_list_flush_or_save(argc-1, argv+1, IPADD_SAVE);
|
|
if (matches(*argv, "showdump") == 0)
|
|
return ipaddr_showdump();
|
|
if (matches(*argv, "restore") == 0)
|
|
return ipaddr_restore();
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
fprintf(stderr, "Command \"%s\" is unknown, try \"ip addr help\".\n", *argv);
|
|
exit(-1);
|
|
}
|