| /* |
| * 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 <linux/net_namespace.h> |
| |
| #include "rt_names.h" |
| #include "utils.h" |
| #include "ll_map.h" |
| #include "ip_common.h" |
| #include "color.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; |
| int master; |
| char *kind; |
| } filter; |
| |
| static int do_link; |
| |
| static void usage(void) __attribute__((noreturn)); |
| |
| static void usage(void) |
| { |
| if (do_link) { |
| iplink_usage(); |
| } |
| fprintf(stderr, "Usage: ip address {add|change|replace} IFADDR dev IFNAME [ LIFETIME ]\n"); |
| fprintf(stderr, " [ CONFFLAG-LIST ]\n"); |
| fprintf(stderr, " ip address del IFADDR dev IFNAME [mngtmpaddr]\n"); |
| fprintf(stderr, " ip address {show|save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n"); |
| fprintf(stderr, " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n"); |
| fprintf(stderr, " ip address {showdump|restore}\n"); |
| fprintf(stderr, "IFADDR := PREFIX | ADDR peer PREFIX\n"); |
| fprintf(stderr, " [ broadcast ADDR ] [ anycast ADDR ]\n"); |
| fprintf(stderr, " [ label IFNAME ] [ 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 | autojoin ]\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 int flags, unsigned int 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 >= ARRAY_SIZE(oper_states)) { |
| fprintf(f, "state %#x ", state); |
| } else if (brief) { |
| color_fprintf(f, oper_state_color(state), |
| "%-14s ", oper_states[state]); |
| } else { |
| fprintf(f, "state "); |
| color_fprintf(f, oper_state_color(state), |
| "%s ", oper_states[state]); |
| } |
| } |
| |
| int get_operstate(const char *name) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(oper_states); 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 >= ARRAY_SIZE(link_modes)) |
| fprintf(f, "mode %d ", mode); |
| else |
| fprintf(f, "mode %s ", link_modes[mode]); |
| } |
| |
| static char *parse_link_kind(struct rtattr *tb) |
| { |
| struct rtattr *linkinfo[IFLA_INFO_MAX+1]; |
| |
| parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); |
| |
| if (linkinfo[IFLA_INFO_KIND]) |
| return RTA_DATA(linkinfo[IFLA_INFO_KIND]); |
| |
| return ""; |
| } |
| |
| static void print_linktype(FILE *fp, struct rtattr *tb) |
| { |
| struct rtattr *linkinfo[IFLA_INFO_MAX+1]; |
| struct link_util *lu; |
| struct link_util *slave_lu; |
| char *kind; |
| char *slave_kind; |
| |
| parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); |
| |
| if (linkinfo[IFLA_INFO_KIND]) { |
| 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) { |
| 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]); |
| } |
| } |
| |
| if (linkinfo[IFLA_INFO_SLAVE_KIND]) { |
| slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); |
| |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " %s_slave ", slave_kind); |
| |
| slave_lu = get_link_slave_kind(slave_kind); |
| if (slave_lu && slave_lu->print_opt) { |
| struct rtattr *attr[slave_lu->maxattr+1], **data = NULL; |
| |
| if (linkinfo[IFLA_INFO_SLAVE_DATA]) { |
| parse_rtattr_nested(attr, slave_lu->maxattr, |
| linkinfo[IFLA_INFO_SLAVE_DATA]); |
| data = attr; |
| } |
| slave_lu->print_opt(slave_lu, fp, data); |
| } |
| } |
| } |
| |
| static void print_af_spec(FILE *fp, struct rtattr *af_spec_attr) |
| { |
| struct rtattr *inet6_attr; |
| struct rtattr *tb[IFLA_INET6_MAX + 1]; |
| |
| inet6_attr = parse_rtattr_one_nested(AF_INET6, af_spec_attr); |
| if (!inet6_attr) |
| return; |
| |
| parse_rtattr_nested(tb, IFLA_INET6_MAX, inet6_attr); |
| |
| if (tb[IFLA_INET6_ADDR_GEN_MODE]) { |
| __u8 mode = rta_getattr_u8(tb[IFLA_INET6_ADDR_GEN_MODE]); |
| |
| switch (mode) { |
| case IN6_ADDR_GEN_MODE_EUI64: |
| fprintf(fp, "addrgenmode eui64 "); |
| break; |
| case IN6_ADDR_GEN_MODE_NONE: |
| fprintf(fp, "addrgenmode none "); |
| break; |
| case IN6_ADDR_GEN_MODE_STABLE_PRIVACY: |
| fprintf(fp, "addrgenmode stable_secret "); |
| break; |
| case IN6_ADDR_GEN_MODE_RANDOM: |
| fprintf(fp, "addrgenmode random "); |
| break; |
| default: |
| fprintf(fp, "addrgenmode %#.2hhx ", mode); |
| break; |
| } |
| } |
| } |
| |
| static void print_vf_stats64(FILE *fp, struct rtattr *vfstats); |
| |
| 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, "%s vf %d MAC %s", _SL_, 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[IFLA_VF_RATE]) { |
| struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]); |
| |
| if (vf_rate->max_tx_rate) |
| fprintf(fp, ", max_tx_rate %dMbps", vf_rate->max_tx_rate); |
| if (vf_rate->min_tx_rate) |
| fprintf(fp, ", min_tx_rate %dMbps", vf_rate->min_tx_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"); |
| } |
| if (vf[IFLA_VF_STATS] && show_stats) |
| print_vf_stats64(fp, vf[IFLA_VF_STATS]); |
| } |
| |
| static void print_num(FILE *fp, unsigned int width, uint64_t count) |
| { |
| const char *prefix = "kMGTPE"; |
| const unsigned int base = use_iec ? 1024 : 1000; |
| uint64_t powi = 1; |
| uint16_t powj = 1; |
| uint8_t precision = 2; |
| char buf[64]; |
| |
| if (!human_readable || count < base) { |
| fprintf(fp, "%-*"PRIu64" ", width, count); |
| return; |
| } |
| |
| /* increase value by a factor of 1000/1024 and print |
| * if result is something a human can read */ |
| for (;;) { |
| powi *= base; |
| if (count / base < powi) |
| break; |
| |
| if (!prefix[1]) |
| break; |
| ++prefix; |
| } |
| |
| /* try to guess a good number of digits for precision */ |
| for (; precision > 0; precision--) { |
| powj *= 10; |
| if (count / powi < powj) |
| break; |
| } |
| |
| snprintf(buf, sizeof(buf), "%.*f%c%s", precision, |
| (double) count / powi, *prefix, use_iec ? "i" : ""); |
| |
| fprintf(fp, "%-*s ", width, buf); |
| } |
| |
| static void print_vf_stats64(FILE *fp, struct rtattr *vfstats) |
| { |
| struct rtattr *vf[IFLA_VF_STATS_MAX + 1] = {}; |
| |
| if (vfstats->rta_type != IFLA_VF_STATS) { |
| fprintf(stderr, "BUG: rta type is %d\n", vfstats->rta_type); |
| return; |
| } |
| |
| parse_rtattr_nested(vf, IFLA_VF_MAX, vfstats); |
| |
| /* RX stats */ |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " RX: bytes packets mcast bcast %s", _SL_); |
| fprintf(fp, " "); |
| |
| print_num(fp, 10, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_RX_BYTES])); |
| print_num(fp, 8, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_RX_PACKETS])); |
| print_num(fp, 7, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_MULTICAST])); |
| print_num(fp, 7, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_BROADCAST])); |
| |
| /* TX stats */ |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " TX: bytes packets %s", _SL_); |
| fprintf(fp, " "); |
| |
| print_num(fp, 10, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_TX_BYTES])); |
| print_num(fp, 8, *(__u64 *)RTA_DATA(vf[IFLA_VF_STATS_TX_PACKETS])); |
| } |
| |
| static void print_link_stats64(FILE *fp, const struct rtnl_link_stats64 *s, |
| const struct rtattr *carrier_changes) |
| { |
| /* RX stats */ |
| fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s", |
| s->rx_compressed ? "compressed" : "", _SL_); |
| |
| fprintf(fp, " "); |
| print_num(fp, 10, s->rx_bytes); |
| print_num(fp, 8, s->rx_packets); |
| print_num(fp, 7, s->rx_errors); |
| print_num(fp, 7, s->rx_dropped); |
| print_num(fp, 7, s->rx_over_errors); |
| print_num(fp, 7, s->multicast); |
| if (s->rx_compressed) |
| print_num(fp, 7, s->rx_compressed); |
| |
| /* RX error stats */ |
| if (show_stats > 1) { |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " RX errors: length crc frame fifo missed%s%s", |
| s->rx_nohandler ? " nohandler" : "", _SL_); |
| |
| fprintf(fp, " "); |
| print_num(fp, 8, s->rx_length_errors); |
| print_num(fp, 7, s->rx_crc_errors); |
| print_num(fp, 7, s->rx_frame_errors); |
| print_num(fp, 7, s->rx_fifo_errors); |
| print_num(fp, 7, s->rx_missed_errors); |
| if (s->rx_nohandler) |
| print_num(fp, 7, s->rx_nohandler); |
| |
| } |
| fprintf(fp, "%s", _SL_); |
| |
| /* TX stats */ |
| fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s", |
| s->tx_compressed ? "compressed" : "", _SL_); |
| |
| fprintf(fp, " "); |
| print_num(fp, 10, s->tx_bytes); |
| print_num(fp, 8, s->tx_packets); |
| print_num(fp, 7, s->tx_errors); |
| print_num(fp, 7, s->tx_dropped); |
| print_num(fp, 7, s->tx_carrier_errors); |
| print_num(fp, 7, s->collisions); |
| if (s->tx_compressed) |
| print_num(fp, 7, s->tx_compressed); |
| |
| /* TX error stats */ |
| if (show_stats > 1) { |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " TX errors: aborted fifo window heartbeat"); |
| if (carrier_changes) |
| fprintf(fp, " transns"); |
| fprintf(fp, "%s", _SL_); |
| |
| fprintf(fp, " "); |
| print_num(fp, 8, s->tx_aborted_errors); |
| print_num(fp, 7, s->tx_fifo_errors); |
| print_num(fp, 7, s->tx_window_errors); |
| print_num(fp, 7, s->tx_heartbeat_errors); |
| if (carrier_changes) |
| print_num(fp, 7, *(uint32_t *)RTA_DATA(carrier_changes)); |
| } |
| } |
| |
| static void print_link_stats32(FILE *fp, const struct rtnl_link_stats *s, |
| const struct rtattr *carrier_changes) |
| { |
| /* RX stats */ |
| fprintf(fp, " RX: bytes packets errors dropped overrun mcast %s%s", |
| s->rx_compressed ? "compressed" : "", _SL_); |
| |
| |
| fprintf(fp, " "); |
| print_num(fp, 10, s->rx_bytes); |
| print_num(fp, 8, s->rx_packets); |
| print_num(fp, 7, s->rx_errors); |
| print_num(fp, 7, s->rx_dropped); |
| print_num(fp, 7, s->rx_over_errors); |
| print_num(fp, 7, s->multicast); |
| if (s->rx_compressed) |
| print_num(fp, 7, s->rx_compressed); |
| |
| /* RX error stats */ |
| if (show_stats > 1) { |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " RX errors: length crc frame fifo missed%s%s", |
| s->rx_nohandler ? " nohandler" : "", _SL_); |
| fprintf(fp, " "); |
| print_num(fp, 8, s->rx_length_errors); |
| print_num(fp, 7, s->rx_crc_errors); |
| print_num(fp, 7, s->rx_frame_errors); |
| print_num(fp, 7, s->rx_fifo_errors); |
| print_num(fp, 7, s->rx_missed_errors); |
| if (s->rx_nohandler) |
| print_num(fp, 7, s->rx_nohandler); |
| } |
| fprintf(fp, "%s", _SL_); |
| |
| /* TX stats */ |
| fprintf(fp, " TX: bytes packets errors dropped carrier collsns %s%s", |
| s->tx_compressed ? "compressed" : "", _SL_); |
| |
| fprintf(fp, " "); |
| print_num(fp, 10, s->tx_bytes); |
| print_num(fp, 8, s->tx_packets); |
| print_num(fp, 7, s->tx_errors); |
| print_num(fp, 7, s->tx_dropped); |
| print_num(fp, 7, s->tx_carrier_errors); |
| print_num(fp, 7, s->collisions); |
| if (s->tx_compressed) |
| print_num(fp, 7, s->tx_compressed); |
| |
| /* TX error stats */ |
| if (show_stats > 1) { |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " TX errors: aborted fifo window heartbeat"); |
| if (carrier_changes) |
| fprintf(fp, " transns"); |
| fprintf(fp, "%s", _SL_); |
| |
| fprintf(fp, " "); |
| print_num(fp, 8, s->tx_aborted_errors); |
| print_num(fp, 7, s->tx_fifo_errors); |
| print_num(fp, 7, s->tx_window_errors); |
| print_num(fp, 7, s->tx_heartbeat_errors); |
| if (carrier_changes) |
| print_num(fp, 7, *(uint32_t *)RTA_DATA(carrier_changes)); |
| } |
| } |
| |
| static void __print_link_stats(FILE *fp, struct rtattr **tb) |
| { |
| const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES]; |
| |
| if (tb[IFLA_STATS64]) { |
| struct rtnl_link_stats64 stats = { 0 }; |
| |
| memcpy(&stats, RTA_DATA(tb[IFLA_STATS64]), |
| MIN(RTA_PAYLOAD(tb[IFLA_STATS64]), sizeof(stats))); |
| |
| print_link_stats64(fp, &stats, carrier_changes); |
| } else if (tb[IFLA_STATS]) { |
| struct rtnl_link_stats stats = { 0 }; |
| |
| memcpy(&stats, RTA_DATA(tb[IFLA_STATS]), |
| MIN(RTA_PAYLOAD(tb[IFLA_STATS]), sizeof(stats))); |
| |
| print_link_stats32(fp, &stats, carrier_changes); |
| } |
| } |
| |
| static void print_link_stats(FILE *fp, struct nlmsghdr *n) |
| { |
| struct ifinfomsg *ifi = NLMSG_DATA(n); |
| struct rtattr *tb[IFLA_MAX+1]; |
| |
| parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), |
| n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi))); |
| __print_link_stats(fp, tb); |
| fprintf(fp, "%s", _SL_); |
| } |
| |
| int print_linkinfo_brief(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; |
| char *name; |
| char buf[32] = { 0, }; |
| unsigned int m_flag = 0; |
| |
| if (n->nlmsg_type != RTM_NEWLINK && n->nlmsg_type != RTM_DELLINK) |
| return -1; |
| |
| len -= NLMSG_LENGTH(sizeof(*ifi)); |
| if (len < 0) |
| return -1; |
| |
| if (filter.ifindex && ifi->ifi_index != filter.ifindex) |
| return -1; |
| if (filter.up && !(ifi->ifi_flags&IFF_UP)) |
| return -1; |
| |
| 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 -1; |
| |
| if (tb[IFLA_GROUP]) { |
| int group = *(int *)RTA_DATA(tb[IFLA_GROUP]); |
| |
| if (filter.group != -1 && group != filter.group) |
| return -1; |
| } |
| |
| if (tb[IFLA_MASTER]) { |
| int master = *(int *)RTA_DATA(tb[IFLA_MASTER]); |
| |
| if (filter.master > 0 && master != filter.master) |
| return -1; |
| } else if (filter.master > 0) |
| return -1; |
| |
| if (filter.kind) { |
| if (tb[IFLA_LINKINFO]) { |
| char *kind = parse_link_kind(tb[IFLA_LINKINFO]); |
| |
| if (strcmp(kind, filter.kind)) |
| return -1; |
| } else { |
| return -1; |
| } |
| } |
| |
| if (n->nlmsg_type == RTM_DELLINK) |
| fprintf(fp, "Deleted "); |
| |
| name = (char *)(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) |
| snprintf(buf, sizeof(buf), "%s@NONE", name); |
| else { |
| snprintf(buf, sizeof(buf), |
| "%s@%s", name, ll_idx_n2a(iflink, b1)); |
| m_flag = ll_index_to_flags(iflink); |
| m_flag = !(m_flag & IFF_UP); |
| } |
| } else |
| snprintf(buf, sizeof(buf), "%s", name); |
| |
| fprintf(fp, "%-16s ", buf); |
| |
| if (tb[IFLA_OPERSTATE]) |
| print_operstate(fp, rta_getattr_u8(tb[IFLA_OPERSTATE])); |
| |
| if (filter.family == AF_PACKET) { |
| SPRINT_BUF(b1); |
| if (tb[IFLA_ADDRESS]) { |
| color_fprintf(fp, COLOR_MAC, "%s ", |
| ll_addr_n2a(RTA_DATA(tb[IFLA_ADDRESS]), |
| RTA_PAYLOAD(tb[IFLA_ADDRESS]), |
| ifi->ifi_type, |
| b1, sizeof(b1))); |
| } |
| } |
| |
| if (filter.family == AF_PACKET) |
| print_link_flags(fp, ifi->ifi_flags, m_flag); |
| |
| if (filter.family == AF_PACKET) |
| fprintf(fp, "\n"); |
| fflush(fp); |
| return 0; |
| } |
| |
| 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 int 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 (tb[IFLA_MASTER]) { |
| int master = *(int *)RTA_DATA(tb[IFLA_MASTER]); |
| |
| if (filter.master > 0 && master != filter.master) |
| return -1; |
| } else if (filter.master > 0) |
| return -1; |
| |
| if (filter.kind) { |
| if (tb[IFLA_LINKINFO]) { |
| char *kind = parse_link_kind(tb[IFLA_LINKINFO]); |
| |
| if (strcmp(kind, filter.kind)) |
| return -1; |
| } else { |
| return -1; |
| } |
| } |
| |
| if (n->nlmsg_type == RTM_DELLINK) |
| fprintf(fp, "Deleted "); |
| |
| fprintf(fp, "%d: ", ifi->ifi_index); |
| color_fprintf(fp, COLOR_IFNAME, "%s", |
| 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 { |
| if (tb[IFLA_LINK_NETNSID]) |
| fprintf(fp, "@if%d: ", iflink); |
| 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_PHYS_PORT_ID]) { |
| SPRINT_BUF(b1); |
| fprintf(fp, "portid %s ", |
| hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_PORT_ID]), |
| RTA_PAYLOAD(tb[IFLA_PHYS_PORT_ID]), |
| b1, sizeof(b1))); |
| } |
| |
| if (tb[IFLA_PHYS_SWITCH_ID]) { |
| SPRINT_BUF(b1); |
| fprintf(fp, "switchid %s ", |
| hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]), |
| RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]), |
| b1, sizeof(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 || show_details) { |
| SPRINT_BUF(b1); |
| fprintf(fp, "%s", _SL_); |
| fprintf(fp, " link/%s ", ll_type_n2a(ifi->ifi_type, b1, sizeof(b1))); |
| |
| if (tb[IFLA_ADDRESS]) { |
| color_fprintf(fp, COLOR_MAC, "%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 "); |
| color_fprintf(fp, COLOR_MAC, "%s", |
| ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]), |
| RTA_PAYLOAD(tb[IFLA_BROADCAST]), |
| ifi->ifi_type, |
| b1, sizeof(b1))); |
| } |
| } |
| |
| if (tb[IFLA_LINK_NETNSID]) { |
| int id = *(int *)RTA_DATA(tb[IFLA_LINK_NETNSID]); |
| |
| if (id >= 0) |
| fprintf(fp, " link-netnsid %d", id); |
| else |
| fprintf(fp, " link-netnsid unknown"); |
| } |
| |
| if (tb[IFLA_PROTO_DOWN]) { |
| if (rta_getattr_u8(tb[IFLA_PROTO_DOWN])) |
| fprintf(fp, " protodown on "); |
| } |
| |
| if (tb[IFLA_PROMISCUITY] && show_details) |
| fprintf(fp, " promiscuity %u ", |
| *(int *)RTA_DATA(tb[IFLA_PROMISCUITY])); |
| |
| if (tb[IFLA_LINKINFO] && show_details) |
| print_linktype(fp, tb[IFLA_LINKINFO]); |
| |
| if (do_link && tb[IFLA_AF_SPEC] && show_details) |
| print_af_spec(fp, tb[IFLA_AF_SPEC]); |
| |
| if ((do_link || show_details) && tb[IFLA_IFALIAS]) { |
| fprintf(fp, "%s alias %s", _SL_, |
| rta_getattr_str(tb[IFLA_IFALIAS])); |
| } |
| |
| if (do_link && show_stats) { |
| fprintf(fp, "%s", _SL_); |
| __print_link_stats(fp, tb); |
| } |
| |
| if ((do_link || show_details) && 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 1; |
| } |
| |
| static int flush_update(void) |
| { |
| |
| /* |
| * Note that the kernel may delete multiple addresses for one |
| * delete request (e.g. if ipv4 address promotion is disabled). |
| * Since a flush operation is really a series of delete requests |
| * its possible that we may request an address delete that has |
| * already been done by the kernel. Therefore, ignore EADDRNOTAVAIL |
| * errors returned from a flush request |
| */ |
| if ((rtnl_send_check(&rth, filter.flushb, filter.flushp) < 0) && |
| (errno != EADDRNOTAVAIL)) { |
| 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 = 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]; |
| |
| 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 (!brief) { |
| 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]) { |
| color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s", |
| format_host_rta(ifa->ifa_family, |
| rta_tb[IFA_LOCAL])); |
| if (rta_tb[IFA_ADDRESS] && |
| memcmp(RTA_DATA(rta_tb[IFA_ADDRESS]), |
| RTA_DATA(rta_tb[IFA_LOCAL]), |
| ifa->ifa_family == AF_INET ? 4 : 16)) { |
| fprintf(fp, " peer "); |
| color_fprintf(fp, ifa_family_color(ifa->ifa_family), |
| "%s", format_host_rta(ifa->ifa_family, |
| rta_tb[IFA_ADDRESS])); |
| } |
| fprintf(fp, "/%d ", ifa->ifa_prefixlen); |
| } |
| |
| if (brief) |
| goto brief_exit; |
| |
| if (rta_tb[IFA_BROADCAST]) { |
| fprintf(fp, "brd "); |
| color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s ", |
| format_host_rta(ifa->ifa_family, |
| rta_tb[IFA_BROADCAST])); |
| } |
| if (rta_tb[IFA_ANYCAST]) { |
| fprintf(fp, "any "); |
| color_fprintf(fp, ifa_family_color(ifa->ifa_family), "%s ", |
| format_host_rta(ifa->ifa_family, |
| rta_tb[IFA_ANYCAST])); |
| } |
| 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_MCAUTOJOIN) { |
| ifa_flags &= ~IFA_F_MCAUTOJOIN; |
| fprintf(fp, "autojoin "); |
| } |
| 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"); |
| brief_exit: |
| fflush(fp); |
| return 0; |
| } |
| |
| 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(struct ifinfomsg *ifi, |
| 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 != ifi->ifi_index || |
| (filter.family && filter.family != ifa->ifa_family)) |
| continue; |
| |
| if (filter.up && !(ifi->ifi_flags&IFF_UP)) |
| continue; |
| |
| print_addrinfo(NULL, n, fp); |
| } |
| if (brief) { |
| fprintf(fp, "\n"); |
| fflush(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 address 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 rtnl_ctrl_data *ctrl, |
| 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 rtnl_ctrl_data *ctrl, |
| 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, n, sizeof(*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)) { |
| if (rtnl_wilddump_request(&rth, filter.family, RTM_GETADDR) < 0) { |
| perror("Cannot send dump request"); |
| exit(1); |
| } |
| filter.flushed = 0; |
| if (rtnl_dump_filter_nc(&rth, print_addrinfo, |
| stdout, NLM_F_DUMP_INTR) < 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, 0); |
| filter.showqueue = 1; |
| 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 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, "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, "-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, "-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, "autojoin") == 0) { |
| filter.flags |= IFA_F_MCAUTOJOIN; |
| filter.flagmask |= IFA_F_MCAUTOJOIN; |
| } else if (strcmp(*argv, "dadfailed") == 0) { |
| filter.flags |= IFA_F_DADFAILED; |
| filter.flagmask |= IFA_F_DADFAILED; |
| } 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, "master") == 0) { |
| int ifindex; |
| |
| NEXT_ARG(); |
| ifindex = ll_name_to_index(*argv); |
| if (!ifindex) |
| invarg("Device does not exist\n", *argv); |
| filter.master = ifindex; |
| } else if (do_link && strcmp(*argv, "type") == 0) { |
| NEXT_ARG(); |
| filter.kind = *argv; |
| } else { |
| if (strcmp(*argv, "dev") == 0) { |
| NEXT_ARG(); |
| } else 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 only filter_dev present and none of the other |
| * link filters are present, use RTM_GETLINK to get |
| * the link device |
| */ |
| if (filter_dev && filter.group == -1 && do_link == 1) { |
| if (iplink_get(0, filter_dev, RTEXT_FILTER_VF) < 0) { |
| perror("Cannot send link get request"); |
| 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) { |
| int res = 0; |
| struct ifinfomsg *ifi = NLMSG_DATA(&l->h); |
| |
| if (brief) { |
| if (print_linkinfo_brief(NULL, &l->h, stdout) == 0) |
| if (filter.family != AF_PACKET) |
| print_selected_addrinfo(ifi, |
| ainfo.head, |
| stdout); |
| } else if (no_link || |
| (res = print_linkinfo(NULL, &l->h, stdout)) >= 0) { |
| if (filter.family != AF_PACKET) |
| print_selected_addrinfo(ifi, |
| ainfo.head, stdout); |
| if (res > 0 && !do_link && show_stats) |
| print_link_stats(stdout, &l->h); |
| } |
| } |
| fflush(stdout); |
| |
| free_nlmsg_chain(&ainfo); |
| free_nlmsg_chain(&linfo); |
| |
| return 0; |
| } |
| |
| static void |
| ipaddr_loop_each_vf(struct rtattr *tb[], int vfnum, int *min, int *max) |
| { |
| struct rtattr *vflist = tb[IFLA_VFINFO_LIST]; |
| struct rtattr *i, *vf[IFLA_VF_MAX+1]; |
| struct ifla_vf_rate *vf_rate; |
| int rem; |
| |
| rem = RTA_PAYLOAD(vflist); |
| |
| for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) { |
| parse_rtattr_nested(vf, IFLA_VF_MAX, i); |
| vf_rate = RTA_DATA(vf[IFLA_VF_RATE]); |
| if (vf_rate->vf == vfnum) { |
| *min = vf_rate->min_tx_rate; |
| *max = vf_rate->max_tx_rate; |
| return; |
| } |
| } |
| fprintf(stderr, "Cannot find VF %d\n", vfnum); |
| exit(1); |
| } |
| |
| void ipaddr_get_vf_rate(int vfnum, int *min, int *max, int idx) |
| { |
| struct nlmsg_chain linfo = { NULL, NULL}; |
| struct rtattr *tb[IFLA_MAX+1]; |
| struct ifinfomsg *ifi; |
| struct nlmsg_list *l; |
| struct nlmsghdr *n; |
| int len; |
| |
| if (rtnl_wilddump_request(&rth, AF_UNSPEC, 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); |
| } |
| for (l = linfo.head; l; l = l->next) { |
| n = &l->h; |
| ifi = NLMSG_DATA(n); |
| |
| len = n->nlmsg_len - NLMSG_LENGTH(sizeof(*ifi)); |
| if (len < 0 || (idx && idx != ifi->ifi_index)) |
| continue; |
| |
| parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); |
| |
| if ((tb[IFLA_VFINFO_LIST] && tb[IFLA_NUM_VF])) { |
| ipaddr_loop_each_vf(tb, vfnum, min, max); |
| return; |
| } |
| } |
| } |
| |
| 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, int ifindex) |
| { |
| memset(&filter, 0, sizeof(filter)); |
| filter.oneline = oneline; |
| filter.ifindex = ifindex; |
| } |
| |
| 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 bool ipaddr_is_multicast(inet_prefix *a) |
| { |
| if (a->family == AF_INET) |
| return IN_MULTICAST(ntohl(a->data[0])); |
| else if (a->family == AF_INET6) |
| return IN6_IS_ADDR_MULTICAST(a->data); |
| else |
| return false; |
| } |
| |
| 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 int 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, "autojoin") == 0) { |
| ifa_flags |= IFA_F_MCAUTOJOIN; |
| } 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 (ifa_flags <= 0xff) |
| req.ifa.ifa_flags = ifa_flags; |
| else |
| 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 ((ifa_flags & IFA_F_MCAUTOJOIN) && !ipaddr_is_multicast(&lcl)) { |
| fprintf(stderr, "autojoin needs multicast address\n"); |
| return -1; |
| } |
| |
| if (rtnl_talk(&rth, &req.n, NULL, 0) < 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 address help\".\n", *argv); |
| exit(-1); |
| } |