diff options
Diffstat (limited to 'networking/libiproute/ipaddress.c')
| -rw-r--r-- | networking/libiproute/ipaddress.c | 723 |
1 files changed, 723 insertions, 0 deletions
diff --git a/networking/libiproute/ipaddress.c b/networking/libiproute/ipaddress.c new file mode 100644 index 0000000..8f491f3 --- /dev/null +++ b/networking/libiproute/ipaddress.c @@ -0,0 +1,723 @@ +/* + * 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" + +#include "busybox.h" + +static struct +{ + int ifindex; + int family; + int oneline; + int showqueue; + inet_prefix pfx; + int scope, scopemask; + int flags, flagmask; + int up; + char *label; + struct rtnl_handle *rth; +} filter; + +static int do_link; + +void print_link_flags(FILE *fp, unsigned flags, unsigned mdown) +{ + fprintf(fp, "<"); + 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); +#if 0 + _PF(ALLMULTI); + _PF(PROMISC); + _PF(MASTER); + _PF(SLAVE); + _PF(DEBUG); + _PF(DYNAMIC); + _PF(AUTOMEDIA); + _PF(PORTSEL); + _PF(NOTRAILERS); +#endif + _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(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; + + memset(tb, 0, sizeof(tb)); + 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))); + } + } + fprintf(fp, "\n"); + fflush(fp); + return 0; +} + +int print_addrinfo(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; + } + + memset(rta_tb, 0, sizeof(rta_tb)); + 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 (n->nlmsg_type == RTM_DELADDR) + fprintf(fp, "Deleted "); + + if (filter.oneline) + 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 + 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; +} + + +int store_nlmsg(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(int argc, char **argv) +{ + struct nlmsg_list *linfo = NULL; + struct nlmsg_list *ainfo = NULL; + struct nlmsg_list *l; + struct rtnl_handle rth; + char *filter_dev = NULL; + int no_link = 0; + + ipaddr_reset_filter(oneline); + filter.showqueue = 1; + + if (filter.family == AF_UNSPEC) + filter.family = preferred_family; + + 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) { + int 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, "label") == 0) { + NEXT_ARG(); + filter.label = *argv; + } else { + if (strcmp(*argv, "dev") == 0) { + NEXT_ARG(); + } + if (filter_dev) + duparg2("dev", *argv); + filter_dev = *argv; + } + argv++; argc--; + } + + if (rtnl_open(&rth, 0) < 0) + exit(1); + + 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 (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]; + memset(tb, 0, sizeof(tb)); + 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 = 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); + } + + exit(0); +} + +int ipaddr_list_link(int argc, char **argv) +{ + preferred_family = AF_PACKET; + do_link = 1; + return ipaddr_list(argc, argv); +} + +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 rtnl_handle rth; + struct { + struct nlmsghdr n; + struct ifaddrmsg ifa; + char buf[256]; + } req; + char *d = NULL; + char *l = 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) { + int 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 (local_len) + duparg2("local", *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 && cmd != RTM_DELADDR) { + 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 (rtnl_open(&rth, 0) < 0) + exit(1); + + 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); + + exit(0); +} + +int do_ipaddr(int argc, char **argv) +{ + if (argc < 1) + return ipaddr_list(0, NULL); + 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(argc-1, argv+1); + fprintf(stderr, "Command \"%s\" is unknown, try \"ip address help\".\n", *argv); + exit(-1); +} |