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adf3764857
git-subtree-dir: contrib/wireguard-tools git-subtree-mainline:9142a2a37bgit-subtree-split:7e00bf8773
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/*
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* Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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*/
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <netdb.h>
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#include "containers.h"
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#include "encoding.h"
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#include "ipc.h"
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#include "subcommands.h"
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int showconf_main(int argc, const char *argv[])
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{
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char base64[WG_KEY_LEN_BASE64];
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char ip[INET6_ADDRSTRLEN];
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struct wgdevice *device = NULL;
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struct wgpeer *peer;
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struct wgallowedip *allowedip;
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int ret = 1;
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if (argc != 2) {
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fprintf(stderr, "Usage: %s %s <interface>\n", PROG_NAME, argv[0]);
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return 1;
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}
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if (ipc_get_device(&device, argv[1])) {
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perror("Unable to access interface");
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goto cleanup;
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}
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printf("[Interface]\n");
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if (device->listen_port)
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printf("ListenPort = %u\n", device->listen_port);
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if (device->fwmark)
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printf("FwMark = 0x%x\n", device->fwmark);
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if (device->flags & WGDEVICE_HAS_PRIVATE_KEY) {
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key_to_base64(base64, device->private_key);
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printf("PrivateKey = %s\n", base64);
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}
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printf("\n");
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for_each_wgpeer(device, peer) {
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key_to_base64(base64, peer->public_key);
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printf("[Peer]\nPublicKey = %s\n", base64);
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if (peer->flags & WGPEER_HAS_PRESHARED_KEY) {
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key_to_base64(base64, peer->preshared_key);
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printf("PresharedKey = %s\n", base64);
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}
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if (peer->first_allowedip)
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printf("AllowedIPs = ");
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for_each_wgallowedip(peer, allowedip) {
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if (allowedip->family == AF_INET) {
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if (!inet_ntop(AF_INET, &allowedip->ip4, ip, INET6_ADDRSTRLEN))
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continue;
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} else if (allowedip->family == AF_INET6) {
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if (!inet_ntop(AF_INET6, &allowedip->ip6, ip, INET6_ADDRSTRLEN))
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continue;
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} else
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continue;
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printf("%s/%d", ip, allowedip->cidr);
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if (allowedip->next_allowedip)
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printf(", ");
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}
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if (peer->first_allowedip)
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printf("\n");
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if (peer->endpoint.addr.sa_family == AF_INET || peer->endpoint.addr.sa_family == AF_INET6) {
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char host[4096 + 1];
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char service[512 + 1];
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socklen_t addr_len = 0;
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if (peer->endpoint.addr.sa_family == AF_INET)
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addr_len = sizeof(struct sockaddr_in);
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else if (peer->endpoint.addr.sa_family == AF_INET6)
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addr_len = sizeof(struct sockaddr_in6);
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if (!getnameinfo(&peer->endpoint.addr, addr_len, host, sizeof(host), service, sizeof(service), NI_DGRAM | NI_NUMERICSERV | NI_NUMERICHOST)) {
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if (peer->endpoint.addr.sa_family == AF_INET6 && strchr(host, ':'))
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printf("Endpoint = [%s]:%s\n", host, service);
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else
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printf("Endpoint = %s:%s\n", host, service);
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}
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}
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if (peer->persistent_keepalive_interval)
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printf("PersistentKeepalive = %u\n", peer->persistent_keepalive_interval);
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if (peer->next_peer)
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printf("\n");
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}
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ret = 0;
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cleanup:
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free_wgdevice(device);
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return ret;
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}
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