diff options
Diffstat (limited to 'ip/ipaddress.c')
| -rw-r--r-- | ip/ipaddress.c | 2646 |
1 files changed, 2646 insertions, 0 deletions
diff --git a/ip/ipaddress.c b/ip/ipaddress.c new file mode 100644 index 0000000..5e83348 --- /dev/null +++ b/ip/ipaddress.c @@ -0,0 +1,2646 @@ +/* + * 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 <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <inttypes.h> +#include <fcntl.h> +#include <sys/ioctl.h> +#include <sys/socket.h> +#include <sys/param.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/if_infiniband.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 link_filter 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" + " [ CONFFLAG-LIST ]\n" + " ip address del IFADDR dev IFNAME [mngtmpaddr]\n" + " ip address {save|flush} [ dev IFNAME ] [ scope SCOPE-ID ]\n" + " [ to PREFIX ] [ FLAG-LIST ] [ label LABEL ] [up]\n" + " ip address [ show [ dev IFNAME ] [ scope SCOPE-ID ] [ master DEVICE ]\n" + " [ nomaster ]\n" + " [ type TYPE ] [ to PREFIX ] [ FLAG-LIST ]\n" + " [ label LABEL ] [up] [ vrf NAME ] ]\n" + " ip address {showdump|restore}\n" + "IFADDR := PREFIX | ADDR peer PREFIX\n" + " [ broadcast ADDR ] [ anycast ADDR ]\n" + " [ label IFNAME ] [ scope SCOPE-ID ] [ metric METRIC ]\n" + "SCOPE-ID := [ host | link | global | NUMBER ]\n" + "FLAG-LIST := [ FLAG-LIST ] FLAG\n" + "FLAG := [ permanent | dynamic | secondary | primary |\n" + " [-]tentative | [-]deprecated | [-]dadfailed | temporary |\n" + " CONFFLAG-LIST ]\n" + "CONFFLAG-LIST := [ CONFFLAG-LIST ] CONFFLAG\n" + "CONFFLAG := [ home | nodad | mngtmpaddr | noprefixroute | autojoin ]\n" + "LIFETIME := [ valid_lft LFT ] [ preferred_lft LFT ]\n" + "LFT := forever | SECONDS\n"); + iplink_types_usage(); + + exit(-1); +} + +static void print_link_flags(FILE *fp, unsigned int flags, unsigned int mdown) +{ + open_json_array(PRINT_ANY, is_json_context() ? "flags" : "<"); + if (flags & IFF_UP && !(flags & IFF_RUNNING)) + print_string(PRINT_ANY, NULL, + flags ? "%s," : "%s", "NO-CARRIER"); + flags &= ~IFF_RUNNING; +#define _PF(f) if (flags&IFF_##f) { \ + flags &= ~IFF_##f ; \ + print_string(PRINT_ANY, NULL, flags ? "%s," : "%s", #f); } + _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) + print_hex(PRINT_ANY, NULL, "%x", flags); + if (mdown) + print_string(PRINT_ANY, NULL, ",%s", "M-DOWN"); + close_json_array(PRINT_ANY, "> "); +} + +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)) { + if (is_json_context()) + print_uint(PRINT_JSON, "operstate_index", NULL, state); + else + print_0xhex(PRINT_FP, NULL, "state %#llx", state); + } else if (brief) { + print_color_string(PRINT_ANY, + oper_state_color(state), + "operstate", + "%-14s ", + oper_states[state]); + } else { + if (is_json_context()) + print_string(PRINT_JSON, + "operstate", + NULL, 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 = rta_getattr_u32(tb[IFLA_TXQLEN]); + else { + struct ifreq ifr = {}; + int s = socket(AF_INET, SOCK_STREAM, 0); + + if (s < 0) + return; + + strcpy(ifr.ifr_name, rta_getattr_str(tb[IFLA_IFNAME])); + if (ioctl(s, SIOCGIFTXQLEN, &ifr) < 0) { + fprintf(stderr, + "ioctl(SIOCGIFTXQLEN) failed: %s\n", + strerror(errno)); + close(s); + return; + } + close(s); + qlen = ifr.ifr_qlen; + } + if (qlen) + print_int(PRINT_ANY, "txqlen", "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)) + print_int(PRINT_ANY, + "linkmode_index", + "mode %d ", + mode); + else + print_string(PRINT_ANY, + "linkmode", + "mode %s " + , link_modes[mode]); +} + +static char *parse_link_kind(struct rtattr *tb, bool slave) +{ + struct rtattr *linkinfo[IFLA_INFO_MAX+1]; + int attr = slave ? IFLA_INFO_SLAVE_KIND : IFLA_INFO_KIND; + + parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); + + if (linkinfo[attr]) + return RTA_DATA(linkinfo[attr]); + + return ""; +} + +static int match_link_kind(struct rtattr **tb, const char *kind, bool slave) +{ + if (!tb[IFLA_LINKINFO]) + return -1; + + return strcmp(parse_link_kind(tb[IFLA_LINKINFO], slave), kind); +} + +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 slave[32]; + + parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); + open_json_object("linkinfo"); + + if (linkinfo[IFLA_INFO_KIND]) { + const char *kind + = rta_getattr_str(linkinfo[IFLA_INFO_KIND]); + + print_nl(); + print_string(PRINT_ANY, "info_kind", " %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; + } + open_json_object("info_data"); + lu->print_opt(lu, fp, data); + close_json_object(); + + if (linkinfo[IFLA_INFO_XSTATS] && show_stats && + lu->print_xstats) { + open_json_object("info_xstats"); + lu->print_xstats(lu, fp, linkinfo[IFLA_INFO_XSTATS]); + close_json_object(); + } + } + } + + if (linkinfo[IFLA_INFO_SLAVE_KIND]) { + const char *slave_kind + = rta_getattr_str(linkinfo[IFLA_INFO_SLAVE_KIND]); + + print_nl(); + print_string(PRINT_ANY, + "info_slave_kind", + " %s_slave ", + slave_kind); + + snprintf(slave, sizeof(slave), "%s_slave", slave_kind); + + slave_lu = get_link_kind(slave); + 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; + } + open_json_object("info_slave_data"); + slave_lu->print_opt(slave_lu, fp, data); + close_json_object(); + } + } + close_json_object(); +} + +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]); + SPRINT_BUF(b1); + + switch (mode) { + case IN6_ADDR_GEN_MODE_EUI64: + print_string(PRINT_ANY, + "inet6_addr_gen_mode", + "addrgenmode %s ", + "eui64"); + break; + case IN6_ADDR_GEN_MODE_NONE: + print_string(PRINT_ANY, + "inet6_addr_gen_mode", + "addrgenmode %s ", + "none"); + break; + case IN6_ADDR_GEN_MODE_STABLE_PRIVACY: + print_string(PRINT_ANY, + "inet6_addr_gen_mode", + "addrgenmode %s ", + "stable_secret"); + break; + case IN6_ADDR_GEN_MODE_RANDOM: + print_string(PRINT_ANY, + "inet6_addr_gen_mode", + "addrgenmode %s ", + "random"); + break; + default: + snprintf(b1, sizeof(b1), "%#.2hhx", mode); + print_string(PRINT_ANY, + "inet6_addr_gen_mode", + "addrgenmode %s ", + b1); + break; + } + } +} + +static void print_vf_stats64(FILE *fp, struct rtattr *vfstats); + +static void print_vfinfo(FILE *fp, struct ifinfomsg *ifi, struct rtattr *vfinfo) +{ + struct ifla_vf_mac *vf_mac; + struct ifla_vf_broadcast *vf_broadcast; + struct ifla_vf_tx_rate *vf_tx_rate; + struct rtattr *vf[IFLA_VF_MAX + 1] = {}; + + 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_broadcast = RTA_DATA(vf[IFLA_VF_BROADCAST]); + vf_tx_rate = RTA_DATA(vf[IFLA_VF_TX_RATE]); + + print_string(PRINT_FP, NULL, "%s ", _SL_); + print_int(PRINT_ANY, "vf", "vf %d ", vf_mac->vf); + + print_string(PRINT_ANY, + "link_type", + " link/%s ", + ll_type_n2a(ifi->ifi_type, b1, sizeof(b1))); + + print_color_string(PRINT_ANY, COLOR_MAC, + "address", "%s", + ll_addr_n2a((unsigned char *) &vf_mac->mac, + ifi->ifi_type == ARPHRD_ETHER ? + ETH_ALEN : INFINIBAND_ALEN, + ifi->ifi_type, + b1, sizeof(b1))); + + if (vf[IFLA_VF_BROADCAST]) { + if (ifi->ifi_flags&IFF_POINTOPOINT) { + print_string(PRINT_FP, NULL, " peer ", NULL); + print_bool(PRINT_JSON, + "link_pointtopoint", NULL, true); + } else + print_string(PRINT_FP, NULL, " brd ", NULL); + + print_color_string(PRINT_ANY, COLOR_MAC, + "broadcast", "%s", + ll_addr_n2a((unsigned char *) &vf_broadcast->broadcast, + ifi->ifi_type == ARPHRD_ETHER ? + ETH_ALEN : INFINIBAND_ALEN, + ifi->ifi_type, + b1, sizeof(b1))); + } + + if (vf[IFLA_VF_VLAN_LIST]) { + struct rtattr *i, *vfvlanlist = vf[IFLA_VF_VLAN_LIST]; + int rem = RTA_PAYLOAD(vfvlanlist); + + open_json_array(PRINT_JSON, "vlan_list"); + for (i = RTA_DATA(vfvlanlist); + RTA_OK(i, rem); i = RTA_NEXT(i, rem)) { + struct ifla_vf_vlan_info *vf_vlan_info = RTA_DATA(i); + SPRINT_BUF(b2); + + open_json_object(NULL); + if (vf_vlan_info->vlan) + print_int(PRINT_ANY, + "vlan", + ", vlan %d", + vf_vlan_info->vlan); + if (vf_vlan_info->qos) + print_int(PRINT_ANY, + "qos", + ", qos %d", + vf_vlan_info->qos); + if (vf_vlan_info->vlan_proto && + vf_vlan_info->vlan_proto != htons(ETH_P_8021Q)) + print_string(PRINT_ANY, + "protocol", + ", vlan protocol %s", + ll_proto_n2a( + vf_vlan_info->vlan_proto, + b2, sizeof(b2))); + close_json_object(); + } + close_json_array(PRINT_JSON, NULL); + } else { + struct ifla_vf_vlan *vf_vlan = RTA_DATA(vf[IFLA_VF_VLAN]); + + if (vf_vlan->vlan) + print_int(PRINT_ANY, + "vlan", + ", vlan %d", + vf_vlan->vlan); + if (vf_vlan->qos) + print_int(PRINT_ANY, "qos", ", qos %d", vf_vlan->qos); + } + + if (vf_tx_rate->rate) + print_uint(PRINT_ANY, + "tx_rate", + ", tx rate %u (Mbps)", + vf_tx_rate->rate); + + if (vf[IFLA_VF_RATE]) { + struct ifla_vf_rate *vf_rate = RTA_DATA(vf[IFLA_VF_RATE]); + int max_tx = vf_rate->max_tx_rate; + int min_tx = vf_rate->min_tx_rate; + + if (is_json_context()) { + open_json_object("rate"); + print_uint(PRINT_JSON, "max_tx", NULL, max_tx); + print_uint(PRINT_ANY, "min_tx", NULL, min_tx); + close_json_object(); + } else { + if (max_tx) + fprintf(fp, ", max_tx_rate %uMbps", max_tx); + if (min_tx) + fprintf(fp, ", min_tx_rate %uMbps", min_tx); + } + } + + if (vf[IFLA_VF_SPOOFCHK]) { + struct ifla_vf_spoofchk *vf_spoofchk = + RTA_DATA(vf[IFLA_VF_SPOOFCHK]); + + if (vf_spoofchk->setting != -1) + print_bool(PRINT_ANY, + "spoofchk", + vf_spoofchk->setting ? + ", spoof checking on" : ", spoof checking off", + vf_spoofchk->setting); + } + + if (vf[IFLA_VF_IB_NODE_GUID]) { + struct ifla_vf_guid *guid = RTA_DATA(vf[IFLA_VF_IB_NODE_GUID]); + uint64_t node_guid = ntohll(guid->guid); + + print_string(PRINT_ANY, "node guid", ", NODE_GUID %s", + ll_addr_n2a((const unsigned char *)&node_guid, + sizeof(node_guid), ARPHRD_INFINIBAND, + b1, sizeof(b1))); + } + if (vf[IFLA_VF_IB_PORT_GUID]) { + struct ifla_vf_guid *guid = RTA_DATA(vf[IFLA_VF_IB_PORT_GUID]); + uint64_t port_guid = ntohll(guid->guid); + + print_string(PRINT_ANY, "port guid", ", PORT_GUID %s", + ll_addr_n2a((const unsigned char *)&port_guid, + sizeof(port_guid), ARPHRD_INFINIBAND, + b1, sizeof(b1))); + } + if (vf[IFLA_VF_LINK_STATE]) { + struct ifla_vf_link_state *vf_linkstate = + RTA_DATA(vf[IFLA_VF_LINK_STATE]); + + if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_AUTO) + print_string(PRINT_ANY, + "link_state", + ", link-state %s", + "auto"); + else if (vf_linkstate->link_state == IFLA_VF_LINK_STATE_ENABLE) + print_string(PRINT_ANY, + "link_state", + ", link-state %s", + "enable"); + else + print_string(PRINT_ANY, + "link_state", + ", link-state %s", + "disable"); + } + + if (vf[IFLA_VF_TRUST]) { + struct ifla_vf_trust *vf_trust = RTA_DATA(vf[IFLA_VF_TRUST]); + + if (vf_trust->setting != -1) + print_bool(PRINT_ANY, + "trust", + vf_trust->setting ? ", trust on" : ", trust off", + vf_trust->setting); + } + + if (vf[IFLA_VF_RSS_QUERY_EN]) { + struct ifla_vf_rss_query_en *rss_query = + RTA_DATA(vf[IFLA_VF_RSS_QUERY_EN]); + + if (rss_query->setting != -1) + print_bool(PRINT_ANY, + "query_rss_en", + rss_query->setting ? ", query_rss on" + : ", query_rss off", + rss_query->setting); + } + + if (vf[IFLA_VF_STATS] && show_stats) + print_vf_stats64(fp, vf[IFLA_VF_STATS]); +} + +void size_columns(unsigned int cols[], unsigned int n, ...) +{ + unsigned int i, len; + uint64_t val; + va_list args; + + va_start(args, n); + + for (i = 0; i < n; i++) { + val = va_arg(args, unsigned long long); + + if (human_readable) + continue; + + for (len = 1; val > 9; len++, val /= 10) + /* nothing */; + if (len > cols[i]) + cols[i] = len; + } + + va_end(args); +} + +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_STATS_MAX, vfstats); + + if (is_json_context()) { + open_json_object("stats"); + + /* RX stats */ + open_json_object("rx"); + print_u64(PRINT_JSON, "bytes", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES])); + print_u64(PRINT_JSON, "packets", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS])); + print_u64(PRINT_JSON, "multicast", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST])); + print_u64(PRINT_JSON, "broadcast", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST])); + if (vf[IFLA_VF_STATS_RX_DROPPED]) + print_u64(PRINT_JSON, "dropped", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED])); + close_json_object(); + + /* TX stats */ + open_json_object("tx"); + print_u64(PRINT_JSON, "tx_bytes", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES])); + print_u64(PRINT_JSON, "tx_packets", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS])); + if (vf[IFLA_VF_STATS_TX_DROPPED]) + print_u64(PRINT_JSON, "dropped", NULL, + rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED])); + close_json_object(); + close_json_object(); + } else { + /* RX stats */ + fprintf(fp, "%s", _SL_); + fprintf(fp, " RX: bytes packets mcast bcast "); + if (vf[IFLA_VF_STATS_RX_DROPPED]) + fprintf(fp, " dropped "); + fprintf(fp, "%s", _SL_); + fprintf(fp, " "); + + print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_RX_BYTES])); + print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_PACKETS])); + print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_MULTICAST])); + print_num(fp, 7, rta_getattr_u64(vf[IFLA_VF_STATS_BROADCAST])); + if (vf[IFLA_VF_STATS_RX_DROPPED]) + print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_RX_DROPPED])); + + /* TX stats */ + fprintf(fp, "%s", _SL_); + fprintf(fp, " TX: bytes packets "); + if (vf[IFLA_VF_STATS_TX_DROPPED]) + fprintf(fp, " dropped "); + fprintf(fp, "%s", _SL_); + fprintf(fp, " "); + + print_num(fp, 10, rta_getattr_u64(vf[IFLA_VF_STATS_TX_BYTES])); + print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_PACKETS])); + if (vf[IFLA_VF_STATS_TX_DROPPED]) + print_num(fp, 8, rta_getattr_u64(vf[IFLA_VF_STATS_TX_DROPPED])); + } +} + +void print_stats64(FILE *fp, struct rtnl_link_stats64 *s, + const struct rtattr *carrier_changes, + const char *what) +{ + unsigned int cols[] = { + strlen("*X errors:"), + strlen("packets"), + strlen("errors"), + strlen("dropped"), + strlen("heartbt"), + strlen("overrun"), + strlen("compressed"), + strlen("otherhost"), + }; + + if (is_json_context()) { + if (what) + open_json_object(what); + + /* RX stats */ + open_json_object("rx"); + print_u64(PRINT_JSON, "bytes", NULL, s->rx_bytes); + print_u64(PRINT_JSON, "packets", NULL, s->rx_packets); + print_u64(PRINT_JSON, "errors", NULL, s->rx_errors); + print_u64(PRINT_JSON, "dropped", NULL, s->rx_dropped); + print_u64(PRINT_JSON, "over_errors", NULL, s->rx_over_errors); + print_u64(PRINT_JSON, "multicast", NULL, s->multicast); + if (s->rx_compressed) + print_u64(PRINT_JSON, + "compressed", NULL, s->rx_compressed); + + /* RX error stats */ + if (show_stats > 1) { + print_u64(PRINT_JSON, + "length_errors", + NULL, s->rx_length_errors); + print_u64(PRINT_JSON, + "crc_errors", + NULL, s->rx_crc_errors); + print_u64(PRINT_JSON, + "frame_errors", + NULL, s->rx_frame_errors); + print_u64(PRINT_JSON, + "fifo_errors", + NULL, s->rx_fifo_errors); + print_u64(PRINT_JSON, + "missed_errors", + NULL, s->rx_missed_errors); + if (s->rx_nohandler) + print_u64(PRINT_JSON, + "nohandler", NULL, s->rx_nohandler); + if (s->rx_otherhost_dropped) + print_u64(PRINT_JSON, + "otherhost", NULL, + s->rx_otherhost_dropped); + } + close_json_object(); + + /* TX stats */ + open_json_object("tx"); + print_u64(PRINT_JSON, "bytes", NULL, s->tx_bytes); + print_u64(PRINT_JSON, "packets", NULL, s->tx_packets); + print_u64(PRINT_JSON, "errors", NULL, s->tx_errors); + print_u64(PRINT_JSON, "dropped", NULL, s->tx_dropped); + print_u64(PRINT_JSON, + "carrier_errors", + NULL, s->tx_carrier_errors); + print_u64(PRINT_JSON, "collisions", NULL, s->collisions); + if (s->tx_compressed) + print_u64(PRINT_JSON, + "compressed", NULL, s->tx_compressed); + + /* TX error stats */ + if (show_stats > 1) { + print_u64(PRINT_JSON, + "aborted_errors", + NULL, s->tx_aborted_errors); + print_u64(PRINT_JSON, + "fifo_errors", + NULL, s->tx_fifo_errors); + print_u64(PRINT_JSON, + "window_errors", + NULL, s->tx_window_errors); + print_u64(PRINT_JSON, + "heartbeat_errors", + NULL, s->tx_heartbeat_errors); + if (carrier_changes) + print_u64(PRINT_JSON, "carrier_changes", NULL, + rta_getattr_u32(carrier_changes)); + } + + close_json_object(); + if (what) + close_json_object(); + } else { + uint64_t zero64 = 0; + + size_columns(cols, ARRAY_SIZE(cols), + s->rx_bytes, s->rx_packets, s->rx_errors, + s->rx_dropped, s->rx_missed_errors, + s->multicast, s->rx_compressed, zero64); + if (show_stats > 1) + size_columns(cols, ARRAY_SIZE(cols), 0, + s->rx_length_errors, s->rx_crc_errors, + s->rx_frame_errors, s->rx_fifo_errors, + s->rx_over_errors, s->rx_nohandler, + s->rx_otherhost_dropped); + size_columns(cols, ARRAY_SIZE(cols), + s->tx_bytes, s->tx_packets, s->tx_errors, + s->tx_dropped, s->tx_carrier_errors, + s->collisions, s->tx_compressed, zero64); + if (show_stats > 1) { + uint64_t cc = carrier_changes ? + rta_getattr_u32(carrier_changes) : 0; + + size_columns(cols, ARRAY_SIZE(cols), 0, 0, + s->tx_aborted_errors, s->tx_fifo_errors, + s->tx_window_errors, + s->tx_heartbeat_errors, cc, zero64); + } + + /* RX stats */ + fprintf(fp, " RX: %*s %*s %*s %*s %*s %*s %*s%s", + cols[0] - 4, "bytes", cols[1], "packets", + cols[2], "errors", cols[3], "dropped", + cols[4], "missed", cols[5], "mcast", + cols[6], s->rx_compressed ? "compressed" : "", _SL_); + + fprintf(fp, " "); + print_num(fp, cols[0], s->rx_bytes); + print_num(fp, cols[1], s->rx_packets); + print_num(fp, cols[2], s->rx_errors); + print_num(fp, cols[3], s->rx_dropped); + print_num(fp, cols[4], s->rx_missed_errors); + print_num(fp, cols[5], s->multicast); + if (s->rx_compressed) + print_num(fp, cols[6], s->rx_compressed); + + /* RX error stats */ + if (show_stats > 1) { + fprintf(fp, "%s", _SL_); + fprintf(fp, " RX errors:%*s %*s %*s %*s %*s %*s%*s%*s%s", + cols[0] - 10, "", cols[1], "length", + cols[2], "crc", cols[3], "frame", + cols[4], "fifo", cols[5], "overrun", + s->rx_nohandler ? cols[6] + 1 : 0, + s->rx_nohandler ? " nohandler" : "", + s->rx_otherhost_dropped ? cols[7] + 1 : 0, + s->rx_otherhost_dropped ? " otherhost" : "", + _SL_); + fprintf(fp, "%*s", cols[0] + 5, ""); + print_num(fp, cols[1], s->rx_length_errors); + print_num(fp, cols[2], s->rx_crc_errors); + print_num(fp, cols[3], s->rx_frame_errors); + print_num(fp, cols[4], s->rx_fifo_errors); + print_num(fp, cols[5], s->rx_over_errors); + if (s->rx_nohandler) + print_num(fp, cols[6], s->rx_nohandler); + if (s->rx_otherhost_dropped) + print_num(fp, cols[7], s->rx_otherhost_dropped); + } + fprintf(fp, "%s", _SL_); + + /* TX stats */ + fprintf(fp, " TX: %*s %*s %*s %*s %*s %*s %*s%s", + cols[0] - 4, "bytes", cols[1], "packets", + cols[2], "errors", cols[3], "dropped", + cols[4], "carrier", cols[5], "collsns", + cols[6], s->tx_compressed ? "compressed" : "", _SL_); + + fprintf(fp, " "); + print_num(fp, cols[0], s->tx_bytes); + print_num(fp, cols[1], s->tx_packets); + print_num(fp, cols[2], s->tx_errors); + print_num(fp, cols[3], s->tx_dropped); + print_num(fp, cols[4], s->tx_carrier_errors); + print_num(fp, cols[5], s->collisions); + if (s->tx_compressed) + print_num(fp, cols[6], s->tx_compressed); + + /* TX error stats */ + if (show_stats > 1) { + fprintf(fp, "%s", _SL_); + fprintf(fp, " TX errors:%*s %*s %*s %*s %*s %*s%s", + cols[0] - 10, "", cols[1], "aborted", + cols[2], "fifo", cols[3], "window", + cols[4], "heartbt", + cols[5], carrier_changes ? "transns" : "", + _SL_); + + fprintf(fp, "%*s", cols[0] + 5, ""); + print_num(fp, cols[1], s->tx_aborted_errors); + print_num(fp, cols[2], s->tx_fifo_errors); + print_num(fp, cols[3], s->tx_window_errors); + print_num(fp, cols[4], s->tx_heartbeat_errors); + if (carrier_changes) + print_num(fp, cols[5], + rta_getattr_u32(carrier_changes)); + } + } +} + +static void __print_link_stats(FILE *fp, struct rtattr *tb[]) +{ + const struct rtattr *carrier_changes = tb[IFLA_CARRIER_CHANGES]; + struct rtnl_link_stats64 _s, *s = &_s; + int ret; + + ret = get_rtnl_link_stats_rta(s, tb); + if (ret < 0) + return; + + print_stats64(fp, s, carrier_changes, + (ret == sizeof(*s)) ? "stats64" : "stats"); +} + +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); + print_nl(); +} + +static int print_linkinfo_brief(FILE *fp, const char *name, + const struct ifinfomsg *ifi, + struct rtattr *tb[]) +{ + unsigned int m_flag = 0; + + m_flag = print_name_and_link("%-16s ", name, tb); + + 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]) { + print_color_string(PRINT_ANY, COLOR_MAC, + "address", "%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); + print_string(PRINT_FP, NULL, "%s", "\n"); + } + + fflush(fp); + return 0; +} + +static const char *link_events[] = { + [IFLA_EVENT_NONE] = "NONE", + [IFLA_EVENT_REBOOT] = "REBOOT", + [IFLA_EVENT_FEATURES] = "FEATURE CHANGE", + [IFLA_EVENT_BONDING_FAILOVER] = "BONDING FAILOVER", + [IFLA_EVENT_NOTIFY_PEERS] = "NOTIFY PEERS", + [IFLA_EVENT_IGMP_RESEND] = "RESEND IGMP", + [IFLA_EVENT_BONDING_OPTIONS] = "BONDING OPTION" +}; + +static void print_link_event(FILE *f, __u32 event) +{ + if (event >= ARRAY_SIZE(link_events)) + print_int(PRINT_ANY, "event", "event %d ", event); + else { + if (event) + print_string(PRINT_ANY, + "event", "event %s ", + link_events[event]); + } +} + +static void print_proto_down(FILE *f, struct rtattr *tb[]) +{ + struct rtattr *preason[IFLA_PROTO_DOWN_REASON_MAX+1]; + + if (tb[IFLA_PROTO_DOWN]) { + if (rta_getattr_u8(tb[IFLA_PROTO_DOWN])) + print_bool(PRINT_ANY, + "proto_down", " protodown on ", true); + } + + if (tb[IFLA_PROTO_DOWN_REASON]) { + char buf[255]; + __u32 reason; + int i, start = 1; + + parse_rtattr_nested(preason, IFLA_PROTO_DOWN_REASON_MAX, + tb[IFLA_PROTO_DOWN_REASON]); + if (!tb[IFLA_PROTO_DOWN_REASON_VALUE]) + return; + + reason = rta_getattr_u8(preason[IFLA_PROTO_DOWN_REASON_VALUE]); + if (!reason) + return; + + open_json_array(PRINT_ANY, + is_json_context() ? "proto_down_reason" : "protodown_reason <"); + for (i = 0; reason; i++, reason >>= 1) { + if (reason & 0x1) { + if (protodown_reason_n2a(i, buf, sizeof(buf))) + break; + print_string(PRINT_ANY, NULL, + start ? "%s" : ",%s", buf); + start = 0; + } + } + close_json_array(PRINT_ANY, ">"); + } +} + +int print_linkinfo(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; + const char *name; + unsigned int m_flag = 0; + SPRINT_BUF(b1); + bool truncated_vfs = false; + + 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 -1; + if (filter.up && !(ifi->ifi_flags&IFF_UP)) + return -1; + + parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(ifi), len, NLA_F_NESTED); + + name = get_ifname_rta(ifi->ifi_index, tb[IFLA_IFNAME]); + if (!name) + return -1; + + if (filter.label) + return 0; + + if (tb[IFLA_GROUP]) { + int group = rta_getattr_u32(tb[IFLA_GROUP]); + + if (filter.group != -1 && group != filter.group) + return -1; + } + + if (tb[IFLA_MASTER]) { + int master = rta_getattr_u32(tb[IFLA_MASTER]); + + if (filter.master > 0 && master != filter.master) + return -1; + } else if (filter.master > 0) + return -1; + + if (filter.kind && match_link_kind(tb, filter.kind, 0)) + return -1; + + if (filter.slave_kind && match_link_kind(tb, filter.slave_kind, 1)) + return -1; + + if (n->nlmsg_type == RTM_DELLINK) + print_bool(PRINT_ANY, "deleted", "Deleted ", true); + + if (brief) + return print_linkinfo_brief(fp, name, ifi, tb); + + print_int(PRINT_ANY, "ifindex", "%d: ", ifi->ifi_index); + + m_flag = print_name_and_link("%s: ", name, tb); + print_link_flags(fp, ifi->ifi_flags, m_flag); + + if (tb[IFLA_MTU]) + print_int(PRINT_ANY, + "mtu", "mtu %u ", + rta_getattr_u32(tb[IFLA_MTU])); + if (tb[IFLA_XDP]) + xdp_dump(fp, tb[IFLA_XDP], do_link, false); + if (tb[IFLA_QDISC]) + print_string(PRINT_ANY, + "qdisc", + "qdisc %s ", + rta_getattr_str(tb[IFLA_QDISC])); + if (tb[IFLA_MASTER]) { + int master = rta_getattr_u32(tb[IFLA_MASTER]); + + print_string(PRINT_ANY, + "master", "master %s ", + ll_index_to_name(master)); + } + + 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]) { + int group = rta_getattr_u32(tb[IFLA_GROUP]); + + print_string(PRINT_ANY, + "group", + "group %s ", + rtnl_group_n2a(group, b1, sizeof(b1))); + } + + if (filter.showqueue) + print_queuelen(fp, tb); + + if (tb[IFLA_EVENT]) + print_link_event(fp, rta_getattr_u32(tb[IFLA_EVENT])); + + if (!filter.family || filter.family == AF_PACKET || show_details) { + print_nl(); + print_string(PRINT_ANY, + "link_type", + " link/%s ", + ll_type_n2a(ifi->ifi_type, b1, sizeof(b1))); + if (tb[IFLA_ADDRESS]) { + print_color_string(PRINT_ANY, + COLOR_MAC, + "address", + "%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) { + print_string(PRINT_FP, NULL, " peer ", NULL); + print_bool(PRINT_JSON, + "link_pointtopoint", NULL, true); + } else { + print_string(PRINT_FP, NULL, " brd ", NULL); + } + print_color_string(PRINT_ANY, + COLOR_MAC, + "broadcast", + "%s", + ll_addr_n2a(RTA_DATA(tb[IFLA_BROADCAST]), + RTA_PAYLOAD(tb[IFLA_BROADCAST]), + ifi->ifi_type, + b1, sizeof(b1))); + } + if (tb[IFLA_PERM_ADDRESS]) { + unsigned int len = RTA_PAYLOAD(tb[IFLA_PERM_ADDRESS]); + + if (!tb[IFLA_ADDRESS] || + RTA_PAYLOAD(tb[IFLA_ADDRESS]) != len || + memcmp(RTA_DATA(tb[IFLA_PERM_ADDRESS]), + RTA_DATA(tb[IFLA_ADDRESS]), len)) { + print_string(PRINT_FP, NULL, " permaddr ", NULL); + print_color_string(PRINT_ANY, + COLOR_MAC, + "permaddr", + "%s", + ll_addr_n2a(RTA_DATA(tb[IFLA_PERM_ADDRESS]), + RTA_PAYLOAD(tb[IFLA_PERM_ADDRESS]), + ifi->ifi_type, + b1, sizeof(b1))); + } + } + } + + if (tb[IFLA_LINK_NETNSID]) { + int id = rta_getattr_u32(tb[IFLA_LINK_NETNSID]); + + if (is_json_context()) { + print_int(PRINT_JSON, "link_netnsid", NULL, id); + } else { + if (id >= 0) { + char *name = get_name_from_nsid(id); + + if (name) + print_string(PRINT_FP, NULL, + " link-netns %s", name); + else + print_int(PRINT_FP, NULL, + " link-netnsid %d", id); + } else + print_string(PRINT_FP, NULL, + " link-netnsid %s", "unknown"); + } + } + + if (tb[IFLA_NEW_NETNSID]) { + int id = rta_getattr_u32(tb[IFLA_NEW_NETNSID]); + char *name = get_name_from_nsid(id); + + if (name) + print_string(PRINT_FP, NULL, " new-netns %s", name); + else + print_int(PRINT_FP, NULL, " new-netnsid %d", id); + } + if (tb[IFLA_NEW_IFINDEX]) { + int id = rta_getattr_u32(tb[IFLA_NEW_IFINDEX]); + + print_int(PRINT_FP, NULL, " new-ifindex %d", id); + } + + if (tb[IFLA_PROTO_DOWN]) + print_proto_down(fp, tb); + + if (show_details) { + if (tb[IFLA_PROMISCUITY]) + print_uint(PRINT_ANY, + "promiscuity", + " promiscuity %u ", + rta_getattr_u32(tb[IFLA_PROMISCUITY])); + + if (tb[IFLA_ALLMULTI]) + print_uint(PRINT_ANY, + "allmulti", + " allmulti %u ", + rta_getattr_u32(tb[IFLA_ALLMULTI])); + + if (tb[IFLA_MIN_MTU]) + print_uint(PRINT_ANY, + "min_mtu", "minmtu %u ", + rta_getattr_u32(tb[IFLA_MIN_MTU])); + + if (tb[IFLA_MAX_MTU]) + print_uint(PRINT_ANY, + "max_mtu", "maxmtu %u ", + rta_getattr_u32(tb[IFLA_MAX_MTU])); + + if (tb[IFLA_LINKINFO]) + print_linktype(fp, tb[IFLA_LINKINFO]); + + if (do_link && tb[IFLA_AF_SPEC]) + print_af_spec(fp, tb[IFLA_AF_SPEC]); + + if (tb[IFLA_NUM_TX_QUEUES]) + print_uint(PRINT_ANY, + "num_tx_queues", + "numtxqueues %u ", + rta_getattr_u32(tb[IFLA_NUM_TX_QUEUES])); + + if (tb[IFLA_NUM_RX_QUEUES]) + print_uint(PRINT_ANY, + "num_rx_queues", + "numrxqueues %u ", + rta_getattr_u32(tb[IFLA_NUM_RX_QUEUES])); + + if (tb[IFLA_GSO_MAX_SIZE]) + print_uint(PRINT_ANY, + "gso_max_size", + "gso_max_size %u ", + rta_getattr_u32(tb[IFLA_GSO_MAX_SIZE])); + + if (tb[IFLA_GSO_MAX_SEGS]) + print_uint(PRINT_ANY, + "gso_max_segs", + "gso_max_segs %u ", + rta_getattr_u32(tb[IFLA_GSO_MAX_SEGS])); + + if (tb[IFLA_TSO_MAX_SIZE]) + print_uint(PRINT_ANY, + "tso_max_size", + "tso_max_size %u ", + rta_getattr_u32(tb[IFLA_TSO_MAX_SIZE])); + + if (tb[IFLA_TSO_MAX_SEGS]) + print_uint(PRINT_ANY, + "tso_max_segs", + "tso_max_segs %u ", + rta_getattr_u32(tb[IFLA_TSO_MAX_SEGS])); + + if (tb[IFLA_GRO_MAX_SIZE]) + print_uint(PRINT_ANY, + "gro_max_size", + "gro_max_size %u ", + rta_getattr_u32(tb[IFLA_GRO_MAX_SIZE])); + + if (tb[IFLA_PHYS_PORT_NAME]) + print_string(PRINT_ANY, + "phys_port_name", + "portname %s ", + rta_getattr_str(tb[IFLA_PHYS_PORT_NAME])); + + if (tb[IFLA_PHYS_PORT_ID]) { + print_string(PRINT_ANY, + "phys_port_id", + "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]) { + print_string(PRINT_ANY, + "phys_switch_id", + "switchid %s ", + hexstring_n2a(RTA_DATA(tb[IFLA_PHYS_SWITCH_ID]), + RTA_PAYLOAD(tb[IFLA_PHYS_SWITCH_ID]), + b1, sizeof(b1))); + } + + if (tb[IFLA_PARENT_DEV_BUS_NAME]) { + print_string(PRINT_ANY, + "parentbus", + "parentbus %s ", + rta_getattr_str(tb[IFLA_PARENT_DEV_BUS_NAME])); + } + + if (tb[IFLA_PARENT_DEV_NAME]) { + print_string(PRINT_ANY, + "parentdev", + "parentdev %s ", + rta_getattr_str(tb[IFLA_PARENT_DEV_NAME])); + } + } + + if ((do_link || show_details) && tb[IFLA_IFALIAS]) { + print_string(PRINT_FP, NULL, "%s ", _SL_); + print_string(PRINT_ANY, + "ifalias", + "alias %s", + rta_getattr_str(tb[IFLA_IFALIAS])); + } + + if ((do_link || show_details) && tb[IFLA_XDP]) + xdp_dump(fp, tb[IFLA_XDP], true, true); + + if (do_link && show_stats) { + print_nl(); + __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), count = 0; + + open_json_array(PRINT_JSON, "vfinfo_list"); + for (i = RTA_DATA(vflist); RTA_OK(i, rem); i = RTA_NEXT(i, rem)) { + open_json_object(NULL); + print_vfinfo(fp, ifi, i); + close_json_object(); + count++; + } + close_json_array(PRINT_JSON, NULL); + if (count != rta_getattr_u32(tb[IFLA_NUM_VF])) + truncated_vfs = true; + } + + if (tb[IFLA_PROP_LIST]) { + struct rtattr *i, *proplist = tb[IFLA_PROP_LIST]; + int rem = RTA_PAYLOAD(proplist); + + open_json_array(PRINT_JSON, "altnames"); + for (i = RTA_DATA(proplist); RTA_OK(i, rem); + i = RTA_NEXT(i, rem)) { + if (i->rta_type != IFLA_ALT_IFNAME) + continue; + print_string(PRINT_FP, NULL, "%s altname ", _SL_); + print_string(PRINT_ANY, NULL, + "%s", rta_getattr_str(i)); + } + close_json_array(PRINT_JSON, NULL); + } + + print_string(PRINT_FP, NULL, "%s", "\n"); + fflush(fp); + /* prettier here if stderr and stdout go to the same place */ + if (truncated_vfs) + fprintf(stderr, "Truncated VF list: %s\n", name); + 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; +} + +/* Mapping from argument to address flag mask and attributes */ +static const struct ifa_flag_data_t { + const char *name; + unsigned long mask; + bool readonly; + bool v6only; +} ifa_flag_data[] = { + { .name = "secondary", .mask = IFA_F_SECONDARY, .readonly = true, .v6only = false}, + { .name = "temporary", .mask = IFA_F_SECONDARY, .readonly = true, .v6only = false}, + { .name = "nodad", .mask = IFA_F_NODAD, .readonly = false, .v6only = true}, + { .name = "optimistic", .mask = IFA_F_OPTIMISTIC, .readonly = false, .v6only = true}, + { .name = "dadfailed", .mask = IFA_F_DADFAILED, .readonly = true, .v6only = true}, + { .name = "home", .mask = IFA_F_HOMEADDRESS, .readonly = false, .v6only = true}, + { .name = "deprecated", .mask = IFA_F_DEPRECATED, .readonly = true, .v6only = true}, + { .name = "tentative", .mask = IFA_F_TENTATIVE, .readonly = true, .v6only = true}, + { .name = "permanent", .mask = IFA_F_PERMANENT, .readonly = true, .v6only = true}, + { .name = "mngtmpaddr", .mask = IFA_F_MANAGETEMPADDR, .readonly = false, .v6only = true}, + { .name = "noprefixroute", .mask = IFA_F_NOPREFIXROUTE, .readonly = false, .v6only = false}, + { .name = "autojoin", .mask = IFA_F_MCAUTOJOIN, .readonly = false, .v6only = false}, + { .name = "stable-privacy", .mask = IFA_F_STABLE_PRIVACY, .readonly = true, .v6only = true}, +}; + +/* Returns a pointer to the data structure for a particular interface flag, or null if no flag could be found */ +static const struct ifa_flag_data_t* lookup_flag_data_by_name(const char* flag_name) { + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(ifa_flag_data); ++i) { + if (strcmp(flag_name, ifa_flag_data[i].name) == 0) + return &ifa_flag_data[i]; + } + return NULL; +} + +static void print_ifa_flags(FILE *fp, const struct ifaddrmsg *ifa, + unsigned int flags) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(ifa_flag_data); i++) { + const struct ifa_flag_data_t* flag_data = &ifa_flag_data[i]; + + if (flag_data->mask == IFA_F_PERMANENT) { + if (!(flags & flag_data->mask)) + print_bool(PRINT_ANY, + "dynamic", "dynamic ", true); + } else if (flags & flag_data->mask) { + if (flag_data->mask == IFA_F_SECONDARY && + ifa->ifa_family == AF_INET6) { + print_bool(PRINT_ANY, + "temporary", "temporary ", true); + } else { + print_string(PRINT_FP, NULL, + "%s ", flag_data->name); + print_bool(PRINT_JSON, + flag_data->name, NULL, true); + } + } + + flags &= ~flag_data->mask; + } + + if (flags) { + if (is_json_context()) { + SPRINT_BUF(b1); + + snprintf(b1, sizeof(b1), "%02x", flags); + print_string(PRINT_JSON, "ifa_flags", NULL, b1); + } else { + fprintf(fp, "flags %02x ", flags); + } + } + +} + +static int get_filter(const char *arg) +{ + bool inv = false; + + if (arg[0] == '-') { + inv = true; + arg++; + } + + /* Special cases */ + if (strcmp(arg, "dynamic") == 0) { + inv = !inv; + arg = "permanent"; + } else if (strcmp(arg, "primary") == 0) { + inv = !inv; + arg = "secondary"; + } + + const struct ifa_flag_data_t* flag_data = lookup_flag_data_by_name(arg); + if (flag_data == NULL) + return -1; + + if (inv) + filter.flags &= ~flag_data->mask; + else + filter.flags |= flag_data->mask; + filter.flagmask |= flag_data->mask; + return 0; +} + +static int ifa_label_match_rta(int ifindex, const struct rtattr *rta) +{ + const char *label; + + if (!filter.label) + return 0; + + if (rta) + label = RTA_DATA(rta); + else + label = ll_index_to_name(ifindex); + + return fnmatch(filter.label, label, 0); +} + +int print_addrinfo(struct nlmsghdr *n, void *arg) +{ + FILE *fp = arg; + struct ifaddrmsg *ifa = NLMSG_DATA(n); + int len = n->nlmsg_len; + 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.family && filter.family != ifa->ifa_family) + return 0; + + if (ifa_label_match_rta(ifa->ifa_index, rta_tb[IFA_LABEL])) + return 0; + + if (inet_addr_match_rta(&filter.pfx, rta_tb[IFA_LOCAL])) + 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) + print_bool(PRINT_ANY, "deleted", "Deleted ", true); + + if (!brief) { + const char *name; + + if (filter.oneline || filter.flushb || echo_request) { + const char *dev = ll_index_to_name(ifa->ifa_index); + + if (is_json_context()) { + print_int(PRINT_JSON, + "index", NULL, ifa->ifa_index); + print_string(PRINT_JSON, "dev", NULL, dev); + } else { + fprintf(fp, "%u: %s", ifa->ifa_index, dev); + } + } + + name = family_name(ifa->ifa_family); + if (*name != '?') { + print_string(PRINT_ANY, "family", " %s ", name); + } else { + print_int(PRINT_ANY, "family_index", " family %d ", + ifa->ifa_family); + } + } + + if (rta_tb[IFA_LOCAL]) { + print_color_string(PRINT_ANY, + ifa_family_color(ifa->ifa_family), + "local", "%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)) { + print_string(PRINT_FP, NULL, " %s ", "peer"); + print_color_string(PRINT_ANY, + ifa_family_color(ifa->ifa_family), + "address", + "%s", + format_host_rta(ifa->ifa_family, + rta_tb[IFA_ADDRESS])); + } + print_int(PRINT_ANY, "prefixlen", "/%d ", ifa->ifa_prefixlen); + + if (rta_tb[IFA_RT_PRIORITY]) + print_uint(PRINT_ANY, "metric", "metric %u ", + rta_getattr_u32(rta_tb[IFA_RT_PRIORITY])); + } + + if (brief) + goto brief_exit; + + if (rta_tb[IFA_BROADCAST]) { + print_string(PRINT_FP, NULL, "%s ", "brd"); + print_color_string(PRINT_ANY, + ifa_family_color(ifa->ifa_family), + "broadcast", + "%s ", + format_host_rta(ifa->ifa_family, + rta_tb[IFA_BROADCAST])); + } + + if (rta_tb[IFA_ANYCAST]) { + print_string(PRINT_FP, NULL, "%s ", "any"); + print_color_string(PRINT_ANY, + ifa_family_color(ifa->ifa_family), + "anycast", + "%s ", + format_host_rta(ifa->ifa_family, + rta_tb[IFA_ANYCAST])); + } + + print_string(PRINT_ANY, + "scope", + "scope %s ", + rtnl_rtscope_n2a(ifa->ifa_scope, b1, sizeof(b1))); + + print_ifa_flags(fp, ifa, ifa_flags); + + if (rta_tb[IFA_LABEL]) + print_string(PRINT_ANY, + "label", + "%s", + rta_getattr_str(rta_tb[IFA_LABEL])); + + if (rta_tb[IFA_CACHEINFO]) { + struct ifa_cacheinfo *ci = RTA_DATA(rta_tb[IFA_CACHEINFO]); + + print_nl(); + print_string(PRINT_FP, NULL, " valid_lft ", NULL); + + if (ci->ifa_valid == INFINITY_LIFE_TIME) { + print_uint(PRINT_JSON, + "valid_life_time", + NULL, INFINITY_LIFE_TIME); + print_string(PRINT_FP, NULL, "%s", "forever"); + } else { + print_uint(PRINT_ANY, + "valid_life_time", "%usec", ci->ifa_valid); + } + + print_string(PRINT_FP, NULL, " preferred_lft ", NULL); + if (ci->ifa_prefered == INFINITY_LIFE_TIME) { + print_uint(PRINT_JSON, + "preferred_life_time", + NULL, INFINITY_LIFE_TIME); + print_string(PRINT_FP, NULL, "%s", "forever"); + } else { + if (ifa_flags & IFA_F_DEPRECATED) + print_int(PRINT_ANY, + "preferred_life_time", + "%dsec", + ci->ifa_prefered); + else + print_uint(PRINT_ANY, + "preferred_life_time", + "%usec", + ci->ifa_prefered); + } + } + print_string(PRINT_FP, NULL, "%s", "\n"); +brief_exit: + fflush(fp); + return 0; +} + +static int print_selected_addrinfo(struct ifinfomsg *ifi, + struct nlmsg_list *ainfo, FILE *fp) +{ + open_json_array(PRINT_JSON, "addr_info"); + 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; + + open_json_object(NULL); + print_addrinfo(n, fp); + close_json_object(); + } + close_json_array(PRINT_JSON, NULL); + + if (brief) { + print_string(PRINT_FP, NULL, "%s", "\n"); + fflush(fp); + } + return 0; +} + + +static int store_nlmsg(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(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(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(struct rtnl_ctrl_data *ctrl, + struct nlmsghdr *n, void *arg) +{ + struct ifaddrmsg *ifa = NLMSG_DATA(n); + + open_json_object(NULL); + print_int(PRINT_ANY, "index", "if%d:", ifa->ifa_index); + print_nl(); + print_addrinfo(n, stdout); + close_json_object(); + return 0; +} + +static int ipaddr_showdump(void) +{ + int err; + + if (ipadd_dump_check_magic()) + exit(-1); + + new_json_obj(json); + open_json_object(NULL); + open_json_array(PRINT_JSON, "addr_info"); + + err = rtnl_from_file(stdin, &show_handler, NULL); + + close_json_array(PRINT_JSON, NULL); + close_json_object(); + delete_json_obj(); + + exit(err); +} + +static int restore_handler(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, NULL); + 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)); +} + +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 (ifa_label_match_rta(ifa->ifa_index, tb[IFA_LABEL])) + continue; + + if (!tb[IFA_LOCAL]) + tb[IFA_LOCAL] = tb[IFA_ADDRESS]; + if (inet_addr_match_rta(&filter.pfx, tb[IFA_LOCAL])) + 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_dump_filter(struct nlmsghdr *nlh, int reqlen) +{ + struct ifaddrmsg *ifa = NLMSG_DATA(nlh); + + ifa->ifa_index = filter.ifindex; + + return 0; +} + +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_addrdump_req(&rth, filter.family, + ipaddr_dump_filter) < 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 iplink_filter_req(struct nlmsghdr *nlh, int reqlen) +{ + int err; + + err = addattr32(nlh, reqlen, IFLA_EXT_MASK, RTEXT_FILTER_VF); + if (err) + return err; + + if (filter.master) { + err = addattr32(nlh, reqlen, IFLA_MASTER, filter.master); + if (err) + return err; + } + + if (filter.kind) { + struct rtattr *linkinfo; + + linkinfo = addattr_nest(nlh, reqlen, IFLA_LINKINFO); + + err = addattr_l(nlh, reqlen, IFLA_INFO_KIND, filter.kind, + strlen(filter.kind)); + if (err) + return err; + + addattr_nest_end(nlh, linkinfo); + } + + return 0; +} + +static int ipaddr_link_get(int index, struct nlmsg_chain *linfo) +{ + struct iplink_req req = { + .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)), + .n.nlmsg_flags = NLM_F_REQUEST, + .n.nlmsg_type = RTM_GETLINK, + .i.ifi_family = filter.family, + .i.ifi_index = index, + }; + __u32 filt_mask = RTEXT_FILTER_VF; + struct nlmsghdr *answer; + + if (!show_stats) + filt_mask |= RTEXT_FILTER_SKIP_STATS; + + addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filt_mask); + + if (rtnl_talk(&rth, &req.n, &answer) < 0) { + perror("Cannot send link request"); + return 1; + } + + if (store_nlmsg(answer, linfo) < 0) { + fprintf(stderr, "Failed to process link information\n"); + free(answer); + return 1; + } + free(answer); + + return 0; +} + +/* fills in linfo with link data and optionally ainfo with address info + * caller can walk lists as desired and must call free_nlmsg_chain for + * both when done + */ +int ip_link_list(req_filter_fn_t filter_fn, struct nlmsg_chain *linfo) +{ + if (rtnl_linkdump_req_filter_fn(&rth, preferred_family, + filter_fn) < 0) { + perror("Cannot send dump request"); + return 1; + } + + if (rtnl_dump_filter(&rth, store_nlmsg, linfo) < 0) { + fprintf(stderr, "Dump terminated\n"); + return 1; + } + + return 0; +} + +static int ip_addr_list(struct nlmsg_chain *ainfo) +{ + if (rtnl_addrdump_req(&rth, filter.family, ipaddr_dump_filter) < 0) { + perror("Cannot send dump request"); + return 1; + } + + if (rtnl_dump_filter(&rth, store_nlmsg, ainfo) < 0) { + fprintf(stderr, "Dump terminated\n"); + return 1; + } + + return 0; +} + +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}, *ainfo = &_ainfo; + struct nlmsg_list *l; + char *filter_dev = NULL; + int no_link = 0; + + ipaddr_reset_filter(oneline, 0); + filter.showqueue = 1; + filter.family = preferred_family; + + 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(); + if (get_prefix(&filter.pfx, *argv, filter.family)) + invarg("invalid \"to\"\n", *argv); + 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 (get_filter(*argv) == 0) { + + } 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 (strcmp(*argv, "vrf") == 0) { + int ifindex; + + NEXT_ARG(); + ifindex = ll_name_to_index(*argv); + if (!ifindex) + invarg("Not a valid VRF name\n", *argv); + if (!name_is_vrf(*argv)) + invarg("Not a valid VRF name\n", *argv); + filter.master = ifindex; + } else if (strcmp(*argv, "nomaster") == 0) { + filter.master = -1; + } else if (strcmp(*argv, "type") == 0) { + int soff; + + NEXT_ARG(); + soff = strlen(*argv) - strlen("_slave"); + if (!strcmp(*argv + soff, "_slave")) { + (*argv)[soff] = '\0'; + filter.slave_kind = *argv; + } else { + 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_addrdump_req(&rth, preferred_family, + ipaddr_dump_filter) < 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); + } + + /* + * Initialize a json_writer and open an array object + * if -json was specified. + */ + new_json_obj(json); + + /* + * 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(filter_dev, RTEXT_FILTER_VF) < 0) { + perror("Cannot send link get request"); + delete_json_obj(); + exit(1); + } + delete_json_obj(); + goto out; + } + + if (filter.ifindex) { + if (ipaddr_link_get(filter.ifindex, &linfo) != 0) + goto out; + } else { + if (ip_link_list(iplink_filter_req, &linfo) != 0) + goto out; + } + + if (filter.family != AF_PACKET) { + if (filter.oneline) + no_link = 1; + + if (ip_addr_list(ainfo) != 0) + goto out; + + ipaddr_filter(&linfo, ainfo); + } + + for (l = linfo.head; l; l = l->next) { + struct nlmsghdr *n = &l->h; + struct ifinfomsg *ifi = NLMSG_DATA(n); + int res = 0; + + open_json_object(NULL); + if (brief || !no_link) + res = print_linkinfo(n, stdout); + if (res >= 0 && filter.family != AF_PACKET) + print_selected_addrinfo(ifi, ainfo->head, stdout); + if (res > 0 && !do_link && show_stats) + print_link_stats(stdout, n); + close_json_object(); + } + fflush(stdout); + +out: + free_nlmsg_chain(ainfo); + free_nlmsg_chain(&linfo); + delete_json_obj(); + 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); + + if (!vf[IFLA_VF_RATE]) { + fprintf(stderr, "VF min/max rate API not supported\n"); + exit(1); + } + + 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, const char *dev) +{ + struct nlmsg_chain linfo = { NULL, NULL}; + struct rtattr *tb[IFLA_MAX+1]; + struct ifinfomsg *ifi; + struct nlmsg_list *l; + struct nlmsghdr *n; + int idx, len; + + idx = ll_name_to_index(dev); + if (idx == 0) { + fprintf(stderr, "Device %s does not exist\n", dev); + exit(1); + } + + if (rtnl_linkdump_req(&rth, AF_UNSPEC) < 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; + filter.group = -1; +} + +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 = { + .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)), + .n.nlmsg_flags = NLM_F_REQUEST | flags, + .n.nlmsg_type = cmd, + .ifa.ifa_family = preferred_family, + }; + 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; + unsigned int ifa_flags = 0; + int ret; + + 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, "metric") == 0 || + matches(*argv, "priority") == 0 || + matches(*argv, "preference") == 0) { + __u32 metric; + + NEXT_ARG(); + if (get_u32(&metric, *argv, 0)) + invarg("\"metric\" value is invalid\n", *argv); + addattr32(&req.n, sizeof(req), IFA_RT_PRIORITY, metric); + } 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 (lookup_flag_data_by_name(*argv)) { + const struct ifa_flag_data_t* flag_data = lookup_flag_data_by_name(*argv); + if (flag_data->readonly) { + fprintf(stderr, "Warning: %s option is not mutable from userspace\n", flag_data->name); + } else if (flag_data->v6only && req.ifa.ifa_family != AF_INET6) { + fprintf(stderr, "Warning: %s option can be set only for IPv6 addresses\n", flag_data->name); + } else { + ifa_flags |= flag_data->mask; + } + } 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 (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); + + req.ifa.ifa_index = ll_name_to_index(d); + if (!req.ifa.ifa_index) + return nodev(d); + + if (valid_lftp || preferred_lftp) { + struct ifa_cacheinfo cinfo = {}; + + 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; + } + + 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 (echo_request) + ret = rtnl_echo_talk(&rth, &req.n, json, print_addrinfo); + else + ret = rtnl_talk(&rth, &req.n, NULL); + + if (ret) + 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); +} |