+++ /dev/null
-/*
- * 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>
- *
- * Changes:
- * Laszlo Valko <valko@linux.karinthy.hu> 990223: address label must be zero terminated
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <fcntl.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/ioctl.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"
-
-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;
-} 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|del} IFADDR dev STRING\n");
- fprintf(stderr, " ip addr {show|flush} [ dev STRING ] [ scope SCOPE-ID ]\n");
- fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label PATTERN ]\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 ]\n");
- exit(-1);
-}
-
-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);
-#undef _PF
- if (flags)
- fprintf(fp, "%x", flags);
- if (mdown)
- fprintf(fp, ",M-DOWN");
- fprintf(fp, "> ");
-}
-
-void print_queuelen(char *name)
-{
- struct ifreq ifr;
- int s;
-
- s = socket(AF_INET, SOCK_STREAM, 0);
- if (s < 0)
- return;
-
- memset(&ifr, 0, sizeof(ifr));
- strcpy(ifr.ifr_name, name);
- if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) {
- perror("SIOCGIFXQLEN");
- close(s);
- return;
- }
- close(s);
-
- if (ifr.ifr_qlen)
- printf("qlen %d", ifr.ifr_qlen);
-}
-
-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: nil ifname\n");
- return -1;
- }
- if (filter.label &&
- (!filter.family || filter.family == AF_PACKET) &&
- fnmatch(filter.label, RTA_DATA(tb[IFLA_IFNAME]), 0))
- return 0;
-
- if (n->nlmsg_type == RTM_DELLINK)
- fprintf(fp, "Deleted ");
-
- fprintf(fp, "%d: %s", ifi->ifi_index,
- tb[IFLA_IFNAME] ? (char*)RTA_DATA(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 ", (char*)RTA_DATA(tb[IFLA_QDISC]));
-#ifdef IFLA_MASTER
- if (tb[IFLA_MASTER]) {
- SPRINT_BUF(b1);
- fprintf(fp, "master %s ", ll_idx_n2a(*(int*)RTA_DATA(tb[IFLA_MASTER]), b1));
- }
-#endif
- if (filter.showqueue)
- print_queuelen((char*)RTA_DATA(tb[IFLA_IFNAME]));
-
- 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_STATS] && show_stats) {
- struct rtnl_link_stats slocal;
- struct rtnl_link_stats *s = RTA_DATA(tb[IFLA_STATS]);
- if (((unsigned long)s) & (sizeof(unsigned long)-1)) {
- memcpy(&slocal, s, sizeof(slocal));
- s = &slocal;
- }
- 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
- );
- }
- }
- fprintf(fp, "\n");
- fflush(fp);
- return 0;
-}
-
-static int flush_update(void)
-{
- if (rtnl_send(&rth, filter.flushb, filter.flushp) < 0) {
- perror("Failed to send flush request\n");
- return -1;
- }
- filter.flushp = 0;
- return 0;
-}
-
-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;
- 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)));
-
- 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->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", rt_addr_n2a(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]), 4) == 0) {
- fprintf(fp, "/%d ", ifa->ifa_prefixlen);
- } else {
- fprintf(fp, " peer %s/%d ",
- rt_addr_n2a(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 ",
- rt_addr_n2a(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 ",
- rt_addr_n2a(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->ifa_flags&IFA_F_SECONDARY) {
- ifa->ifa_flags &= ~IFA_F_SECONDARY;
- fprintf(fp, "secondary ");
- }
- if (ifa->ifa_flags&IFA_F_TENTATIVE) {
- ifa->ifa_flags &= ~IFA_F_TENTATIVE;
- fprintf(fp, "tentative ");
- }
- if (ifa->ifa_flags&IFA_F_DEPRECATED) {
- ifa->ifa_flags &= ~IFA_F_DEPRECATED;
- fprintf(fp, "deprecated ");
- }
- if (!(ifa->ifa_flags&IFA_F_PERMANENT)) {
- fprintf(fp, "dynamic ");
- } else
- ifa->ifa_flags &= ~IFA_F_PERMANENT;
- if (ifa->ifa_flags)
- fprintf(fp, "flags %02x ", ifa->ifa_flags);
- if (rta_tb[IFA_LABEL])
- fprintf(fp, "%s", (char*)RTA_DATA(rta_tb[IFA_LABEL]));
- if (rta_tb[IFA_CACHEINFO]) {
- struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]);
- char buf[128];
- fprintf(fp, "%s", _SL_);
- if (ci->ifa_valid == 0xFFFFFFFFU)
- sprintf(buf, "valid_lft forever");
- else
- sprintf(buf, "valid_lft %dsec", ci->ifa_valid);
- if (ci->ifa_prefered == 0xFFFFFFFFU)
- sprintf(buf+strlen(buf), " preferred_lft forever");
- else
- sprintf(buf+strlen(buf), " preferred_lft %dsec", ci->ifa_prefered);
- fprintf(fp, " %s", buf);
- }
- fprintf(fp, "\n");
- fflush(fp);
- return 0;
-}
-
-
-struct nlmsg_list
-{
- struct nlmsg_list *next;
- struct nlmsghdr h;
-};
-
-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_list **linfo = (struct nlmsg_list**)arg;
- struct nlmsg_list *h;
- struct nlmsg_list **lp;
-
- h = malloc(n->nlmsg_len+sizeof(void*));
- if (h == NULL)
- return -1;
-
- memcpy(&h->h, n, n->nlmsg_len);
- h->next = NULL;
-
- for (lp = linfo; *lp; lp = &(*lp)->next) /* NOTHING */;
- *lp = h;
-
- ll_remember_index(who, n, NULL);
- return 0;
-}
-
-int ipaddr_list_or_flush(int argc, char **argv, int flush)
-{
- struct nlmsg_list *linfo = NULL;
- struct nlmsg_list *ainfo = NULL;
- struct nlmsg_list *l, *n;
- char *filter_dev = NULL;
- int no_link = 0;
-
- ipaddr_reset_filter(oneline);
- filter.showqueue = 1;
-
- if (filter.family == AF_UNSPEC)
- filter.family = preferred_family;
-
- if (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) {
- 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, "label") == 0) {
- NEXT_ARG();
- filter.label = *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 (rtnl_wilddump_request(&rth, preferred_family, RTM_GETLINK) < 0) {
- perror("Cannot send dump request");
- exit(1);
- }
-
- if (rtnl_dump_filter(&rth, store_nlmsg, &linfo, NULL, NULL) < 0) {
- fprintf(stderr, "Dump terminated\n");
- exit(1);
- }
-
- 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 (flush) {
- int round = 0;
- char flushb[4096-512];
-
- filter.flushb = flushb;
- filter.flushp = 0;
- filter.flushe = sizeof(flushb);
-
- for (;;) {
- if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) {
- perror("Cannot send dump request");
- exit(1);
- }
- filter.flushed = 0;
- if (rtnl_dump_filter(&rth, print_addrinfo, stdout, NULL, NULL) < 0) {
- fprintf(stderr, "Flush terminated\n");
- exit(1);
- }
- if (filter.flushed == 0) {
- if (round == 0) {
- fprintf(stderr, "Nothing to flush.\n");
- } else if (show_stats)
- 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 (filter.family != AF_PACKET) {
- 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, NULL, NULL) < 0) {
- fprintf(stderr, "Dump terminated\n");
- exit(1);
- }
- }
-
-
- if (filter.family && filter.family != AF_PACKET) {
- struct nlmsg_list **lp;
- lp=&linfo;
-
- if (filter.oneline)
- no_link = 1;
-
- while ((l=*lp)!=NULL) {
- int ok = 0;
- struct ifinfomsg *ifi = NLMSG_DATA(&l->h);
- struct nlmsg_list *a;
-
- for (a=ainfo; a; a=a->next) {
- struct nlmsghdr *n = &a->h;
- struct ifaddrmsg *ifa = NLMSG_DATA(n);
-
- if (ifa->ifa_index != ifi->ifi_index ||
- (filter.family && filter.family != ifa->ifa_family))
- continue;
- if ((filter.scope^ifa->ifa_scope)&filter.scopemask)
- continue;
- if ((filter.flags^ifa->ifa_flags)&filter.flagmask)
- continue;
- if (filter.pfx.family || filter.label) {
- struct rtattr *tb[IFA_MAX+1];
- parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), IFA_PAYLOAD(n));
- 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 (!ok)
- *lp = l->next;
- else
- lp = &l->next;
- }
- }
-
- for (l=linfo; l; l = n) {
- n = 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, stdout);
- }
- fflush(stdout);
- free(l);
- }
-
- return 0;
-}
-
-int ipaddr_list_link(int argc, char **argv)
-{
- preferred_family = AF_PACKET;
- do_link = 1;
- return ipaddr_list_or_flush(argc, argv, 0);
-}
-
-void ipaddr_reset_filter(int oneline)
-{
- memset(&filter, 0, sizeof(filter));
- filter.oneline = oneline;
-}
-
-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;
-}
-
-int ipaddr_modify(int cmd, 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;
- 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;
-
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- 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(*argv, "invalid scope value.");
- 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 (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++;
- }
- 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);
- exit(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);
-
- ll_init_map(&rth);
-
- if ((req.ifa.ifa_index = ll_name_to_index(d)) == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
- return -1;
- }
-
- if (rtnl_talk(&rth, &req.n, 0, 0, NULL, NULL, NULL) < 0)
- exit(2);
-
- return 0;
-}
-
-int do_ipaddr(int argc, char **argv)
-{
- if (argc < 1)
- return ipaddr_list_or_flush(0, NULL, 0);
- if (matches(*argv, "add") == 0)
- return ipaddr_modify(RTM_NEWADDR, argc-1, argv+1);
- if (matches(*argv, "delete") == 0)
- return ipaddr_modify(RTM_DELADDR, argc-1, argv+1);
- if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
- || matches(*argv, "lst") == 0)
- return ipaddr_list_or_flush(argc-1, argv+1, 0);
- if (matches(*argv, "flush") == 0)
- return ipaddr_list_or_flush(argc-1, argv+1, 1);
- if (matches(*argv, "help") == 0)
- usage();
- fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv);
- exit(-1);
-}
-
git://git.onelab.eu / iproute2.git / blobdiff