/*
* Copyright (c) 2017, Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* thislist of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/param.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_lagg.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <netinet/in.h>
#include <netinet/ip_carp.h>
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
#include <err.h>
#include <errno.h>
#include <ifaddrs.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libifconfig.h>
static const char *carp_states[] = { CARP_STATES };
static void
print_carp(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct carpreq carpr[CARP_MAXVHID];
int i;
if (ifconfig_carp_get_info(lifh, ifa->ifa_name, carpr, CARP_MAXVHID)) {
return; /* Probably not configured on this interface */
}
for (i = 0; i < carpr[0].carpr_count; i++) {
printf("\tcarp: %s vhid %d advbase %d advskew %d",
carp_states[carpr[i].carpr_state], carpr[i].carpr_vhid,
carpr[i].carpr_advbase, carpr[i].carpr_advskew);
printf("\n");
}
}
static void
print_inet4_addr(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct ifconfig_inet_addr addr;
char addr_buf[NI_MAXHOST];
if (ifconfig_inet_get_addrinfo(lifh, ifa->ifa_name, ifa, &addr) != 0) {
return;
}
inet_ntop(AF_INET, &addr.sin->sin_addr, addr_buf, sizeof(addr_buf));
printf("\tinet %s", addr_buf);
if (addr.dst) {
printf(" --> %s", inet_ntoa(addr.dst->sin_addr));
}
printf(" netmask 0x%x ", ntohl(addr.netmask->sin_addr.s_addr));
if ((addr.broadcast != NULL) &&
(addr.broadcast->sin_addr.s_addr != 0)) {
printf("broadcast %s ", inet_ntoa(addr.broadcast->sin_addr));
}
if (addr.vhid != 0) {
printf("vhid %d ", addr.vhid);
}
printf("\n");
}
static void
print_inet6_addr(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct ifconfig_inet6_addr addr;
char addr_buf[NI_MAXHOST];
struct timespec now;
/* Print the address */
if (ifconfig_inet6_get_addrinfo(lifh, ifa->ifa_name, ifa, &addr) != 0) {
err(1, "ifconfig_inet6_get_addrinfo");
}
if (0 != getnameinfo((struct sockaddr *)addr.sin6, addr.sin6->sin6_len,
addr_buf, sizeof(addr_buf), NULL, 0, NI_NUMERICHOST)) {
inet_ntop(AF_INET6, &addr.sin6->sin6_addr, addr_buf,
sizeof(addr_buf));
}
printf("\tinet6 %s", addr_buf);
if (addr.dstin6) {
inet_ntop(AF_INET6, addr.dstin6, addr_buf, sizeof(addr_buf));
printf(" --> %s", addr_buf);
}
/* Print the netmask */
printf(" prefixlen %d ", addr.prefixlen);
/* Print the scopeid*/
if (addr.sin6->sin6_scope_id) {
printf("scopeid 0x%x ", addr.sin6->sin6_scope_id);
}
/* Print the flags */
if ((addr.flags & IN6_IFF_ANYCAST) != 0) {
printf("anycast ");
}
if ((addr.flags & IN6_IFF_TENTATIVE) != 0) {
printf("tentative ");
}
if ((addr.flags & IN6_IFF_DUPLICATED) != 0) {
printf("duplicated ");
}
if ((addr.flags & IN6_IFF_DETACHED) != 0) {
printf("detached ");
}
if ((addr.flags & IN6_IFF_DEPRECATED) != 0) {
printf("deprecated ");
}
if ((addr.flags & IN6_IFF_AUTOCONF) != 0) {
printf("autoconf ");
}
if ((addr.flags & IN6_IFF_TEMPORARY) != 0) {
printf("temporary ");
}
if ((addr.flags & IN6_IFF_PREFER_SOURCE) != 0) {
printf("prefer_source ");
}
/* Print the lifetimes */
clock_gettime(CLOCK_MONOTONIC_FAST, &now);
if (addr.lifetime.ia6t_preferred || addr.lifetime.ia6t_expire) {
printf("pltime ");
if (addr.lifetime.ia6t_preferred) {
printf("%ld ", MAX(0l,
addr.lifetime.ia6t_preferred - now.tv_sec));
} else {
printf("infty ");
}
printf("vltime ");
if (addr.lifetime.ia6t_expire) {
printf("%ld ", MAX(0l,
addr.lifetime.ia6t_expire - now.tv_sec));
} else {
printf("infty ");
}
}
/* Print the vhid */
if (addr.vhid != 0) {
printf("vhid %d ", addr.vhid);
}
printf("\n");
}
static void
print_link_addr(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
char addr_buf[NI_MAXHOST];
struct sockaddr_dl *sdl;
int n;
sdl = (struct sockaddr_dl *)ifa->ifa_addr;
if ((sdl != NULL) && (sdl->sdl_alen > 0)) {
if (((sdl->sdl_type == IFT_ETHER) ||
(sdl->sdl_type == IFT_L2VLAN) ||
(sdl->sdl_type == IFT_BRIDGE)) &&
(sdl->sdl_alen == ETHER_ADDR_LEN)) {
ether_ntoa_r((struct ether_addr *)LLADDR(sdl),
addr_buf);
printf("\tether %s\n", addr_buf);
} else {
n = sdl->sdl_nlen > 0 ? sdl->sdl_nlen + 1 : 0;
printf("\tlladdr %s\n", link_ntoa(sdl) + n);
}
}
}
static void
print_ifaddr(ifconfig_handle_t *lifh, struct ifaddrs *ifa, void *udata __unused)
{
switch (ifa->ifa_addr->sa_family) {
case AF_INET:
print_inet4_addr(lifh, ifa);
break;
case AF_INET6:
/*
* printing AF_INET6 status requires calling SIOCGIFAFLAG_IN6
* and SIOCGIFALIFETIME_IN6. TODO: figure out the best way to
* do that from within libifconfig
*/
print_inet6_addr(lifh, ifa);
break;
case AF_LINK:
print_link_addr(lifh, ifa);
break;
case AF_LOCAL:
case AF_UNSPEC:
default:
/* TODO */
break;
}
}
static void
print_nd6(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct in6_ndireq nd;
if (ifconfig_get_nd6(lifh, ifa->ifa_name, &nd) == 0) {
printf("\tnd6 options=%x\n", nd.ndi.flags);
} else {
err(1, "Failed to get nd6 options");
}
}
static void
print_fib(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
int fib;
if (ifconfig_get_fib(lifh, ifa->ifa_name, &fib) == 0) {
printf("\tfib: %d\n", fib);
} else {
err(1, "Failed to get interface FIB");
}
}
static void
print_lagg(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct lagg_protos lpr[] = LAGG_PROTOS;
struct ifconfig_lagg_status *ls;
struct lacp_opreq *lp;
const char *proto = "<unknown>";
int i;
if (ifconfig_lagg_get_lagg_status(lifh, ifa->ifa_name, &ls) < 0) {
if (ifconfig_err_errno(lifh) == EINVAL) {
return;
}
err(1, "Failed to get interface lagg status");
}
/* First print the proto */
for (i = 0; i < nitems(lpr); i++) {
if (ls->ra->ra_proto == lpr[i].lpr_proto) {
proto = lpr[i].lpr_name;
break;
}
}
printf("\tlaggproto %s", proto);
/* Now print the lagg hash */
if (ls->rf->rf_flags & LAGG_F_HASHMASK) {
const char *sep = "";
printf(" lagghash ");
if (ls->rf->rf_flags & LAGG_F_HASHL2) {
printf("%sl2", sep);
sep = ",";
}
if (ls->rf->rf_flags & LAGG_F_HASHL3) {
printf("%sl3", sep);
sep = ",";
}
if (ls->rf->rf_flags & LAGG_F_HASHL4) {
printf("%sl4", sep);
sep = ",";
}
}
putchar('\n');
printf("\tlagg options:\n");
printf("\t\tflags=%x", ls->ro->ro_opts);
putchar('\n');
printf("\t\tflowid_shift: %d\n", ls->ro->ro_flowid_shift);
if (ls->ra->ra_proto == LAGG_PROTO_ROUNDROBIN) {
printf("\t\trr_limit: %d\n", ls->ro->ro_bkt);
}
printf("\tlagg statistics:\n");
printf("\t\tactive ports: %d\n", ls->ro->ro_active);
printf("\t\tflapping: %u\n", ls->ro->ro_flapping);
for (i = 0; i < ls->ra->ra_ports; i++) {
lp = (struct lacp_opreq *)&ls->ra->ra_port[i].rp_lacpreq;
printf("\tlaggport: %s ", ls->ra->ra_port[i].rp_portname);
printf("flags=%x", ls->ra->ra_port[i].rp_flags);
if (ls->ra->ra_proto == LAGG_PROTO_LACP) {
printf(" state=%x", lp->actor_state);
}
putchar('\n');
}
printf("\n");
ifconfig_lagg_free_lagg_status(ls);
}
static void
print_laggport(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct lagg_reqport rp;
if (ifconfig_lagg_get_laggport_status(lifh, ifa->ifa_name, &rp) < 0) {
if ((ifconfig_err_errno(lifh) == EINVAL) ||
(ifconfig_err_errno(lifh) == ENOENT)) {
return;
} else {
err(1, "Failed to get lagg port status");
}
}
printf("\tlaggdev: %s\n", rp.rp_ifname);
}
static void
print_groups(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
struct ifgroupreq ifgr;
struct ifg_req *ifg;
int len;
int cnt = 0;
if (ifconfig_get_groups(lifh, ifa->ifa_name, &ifgr) != 0) {
err(1, "Failed to get groups");
}
ifg = ifgr.ifgr_groups;
len = ifgr.ifgr_len;
for (; ifg && len >= sizeof(struct ifg_req); ifg++) {
len -= sizeof(struct ifg_req);
if (strcmp(ifg->ifgrq_group, "all")) {
if (cnt == 0) {
printf("\tgroups: ");
}
cnt++;
printf("%s ", ifg->ifgrq_group);
}
}
if (cnt) {
printf("\n");
}
free(ifgr.ifgr_groups);
}
static void
print_media(ifconfig_handle_t *lifh, struct ifaddrs *ifa)
{
int i;
/* Outline:
* 1) Determine whether the iface supports SIOGIFMEDIA or SIOGIFXMEDIA
* 2) Get the full media list
* 3) Print the current media word
* 4) Print the active media word, if different
* 5) Print the status
* 6) Print the supported media list
*
* How to print the media word:
* 1) Get the top-level interface type and description
* 2) Print the subtype
* 3) For current word only, print the top type, if it exists
* 4) Print options list
* 5) Print the instance, if there is one
*
* How to get the top-level interface type
* 1) Shift ifmw right by 0x20 and index into IFM_TYPE_DESCRIPTIONS
*
* How to get the top-level interface subtype
* 1) Shift ifmw right by 0x20, index into ifmedia_types_to_subtypes
* 2) Iterate through the resulting table's subtypes table, ignoring
* aliases. Iterate through the resulting ifmedia_description
* tables, finding an entry with the right media subtype
*/
struct ifmediareq *ifmr;
if (ifconfig_media_get_mediareq(lifh, ifa->ifa_name, &ifmr) != 0) {
if (ifconfig_err_errtype(lifh) != OK) {
err(1, "Failed to get media info");
} else {
return; /* Interface doesn't support media info */
}
}
printf("\tmedia: %s %s", ifconfig_media_get_type(ifmr->ifm_current),
ifconfig_media_get_subtype(ifmr->ifm_current));
if (ifmr->ifm_active != ifmr->ifm_current) {
const char **options;
printf(" (%s", ifconfig_media_get_subtype(ifmr->ifm_active));
options = ifconfig_media_get_options(ifmr->ifm_active);
if (options != NULL && options[0] != NULL) {
printf(" <%s", options[0]);
for (size_t i = 1; options[i] != NULL; ++i)
printf(",%s", options[i]);
printf(">)\n");
} else {
printf(")\n");
}
free(options);
} else {
printf("\n");
}
if (ifmr->ifm_status & IFM_AVALID) {
printf("\tstatus: %s\n",
ifconfig_media_get_status(ifmr));
}
printf("\tsupported media:\n");
for (i = 0; i < ifmr->ifm_count; i++) {
const char **options;
printf("\t\tmedia %s",
ifconfig_media_get_subtype(ifmr->ifm_ulist[i]));
options = ifconfig_media_get_options(ifmr->ifm_ulist[i]);
if (options != NULL && options[0] != NULL) {
printf(" mediaopt %s", options[0]);
for (size_t i = 1; options[i] != NULL; ++i)
printf(",%s", options[i]);
printf("\n");
} else {
printf("\n");
}
free(options);
}
free(ifmr);
}
static void
print_iface(ifconfig_handle_t *lifh, struct ifaddrs *ifa, void *udata __unused)
{
int metric, mtu;
char *description = NULL;
struct ifconfig_capabilities caps;
struct ifstat ifs;
printf("%s: flags=%x ", ifa->ifa_name, ifa->ifa_flags);
if (ifconfig_get_metric(lifh, ifa->ifa_name, &metric) == 0) {
printf("metric %d ", metric);
} else {
err(1, "Failed to get interface metric");
}
if (ifconfig_get_mtu(lifh, ifa->ifa_name, &mtu) == 0) {
printf("mtu %d\n", mtu);
} else {
err(1, "Failed to get interface MTU");
}
if (ifconfig_get_description(lifh, ifa->ifa_name, &description) == 0) {
printf("\tdescription: %s\n", description);
}
if (ifconfig_get_capability(lifh, ifa->ifa_name, &caps) == 0) {
if (caps.curcap != 0) {
printf("\toptions=%x\n", caps.curcap);
}
if (caps.reqcap != 0) {
printf("\tcapabilities=%x\n", caps.reqcap);
}
} else {
err(1, "Failed to get interface capabilities");
}
ifconfig_foreach_ifaddr(lifh, ifa, print_ifaddr, NULL);
/* This paragraph is equivalent to ifconfig's af_other_status funcs */
print_nd6(lifh, ifa);
print_media(lifh, ifa);
print_groups(lifh, ifa);
print_fib(lifh, ifa);
print_carp(lifh, ifa);
print_lagg(lifh, ifa);
print_laggport(lifh, ifa);
if (ifconfig_get_ifstatus(lifh, ifa->ifa_name, &ifs) == 0) {
printf("%s", ifs.ascii);
}
free(description);
}
int
main(int argc, char *argv[])
{
ifconfig_handle_t *lifh;
if (argc != 1) {
errx(1, "Usage: example_status");
}
lifh = ifconfig_open();
if (lifh == NULL) {
errx(1, "Failed to open libifconfig handle.");
}
if (ifconfig_foreach_iface(lifh, print_iface, NULL) != 0) {
err(1, "Failed to get interfaces");
}
ifconfig_close(lifh);
lifh = NULL;
return (-1);
}
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