+++ /dev/null
-/*
- info.c -- Show information about a node, subnet or address
- Copyright (C) 2012-2013 Guus Sliepen <guus@tinc-vpn.org>
-
- 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.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#include "control_common.h"
-#include "list.h"
-#include "subnet.h"
-#include "tincctl.h"
-#include "info.h"
-#include "xalloc.h"
-
-void logger(int level, int priority, const char *format, ...) {
- va_list ap;
- va_start(ap, format);
- vfprintf(stderr, format, ap);
- va_end(ap);
- fputc('\n', stderr);
-}
-
-char *strip_weight(char *netstr) {
- int len = strlen(netstr);
- if(len >= 3 && !strcmp(netstr + len - 3, "#10"))
- netstr[len - 3] = 0;
- return netstr;
-}
-
-static int info_node(int fd, const char *item) {
- // Check the list of nodes
- sendline(fd, "%d %d %s", CONTROL, REQ_DUMP_NODES, item);
-
- bool found = false;
- char line[4096];
-
- char node[4096];
- char from[4096];
- char to[4096];
- char subnet[4096];
- char host[4096];
- char port[4096];
- char via[4096];
- char nexthop[4096];
- int code, req, cipher, digest, maclength, compression, distance;
- short int pmtu, minmtu, maxmtu;
- unsigned int options;
- union {
- node_status_t bits;
- uint32_t raw;
- } status_union;
- node_status_t status;
- long int last_state_change;
-
- while(recvline(fd, line, sizeof line)) {
- int n = sscanf(line, "%d %d %s %s port %s %d %d %d %d %x %"PRIx32" %s %s %d %hd %hd %hd %ld", &code, &req, node, host, port, &cipher, &digest, &maclength, &compression, &options, &status_union.raw, nexthop, via, &distance, &pmtu, &minmtu, &maxmtu, &last_state_change);
-
- if(n == 2)
- break;
-
- if(n != 18) {
- fprintf(stderr, "Unable to parse node dump from tincd.\n");
- return 1;
- }
-
- if(!strcmp(node, item)) {
- found = true;
- break;
- }
- }
-
- if(!found) {
- fprintf(stderr, "Unknown node %s.\n", item);
- return 1;
- }
-
- while(recvline(fd, line, sizeof line)) {
- if(sscanf(line, "%d %d %s", &code, &req, node) == 2)
- break;
- }
-
- printf("Node: %s\n", item);
- printf("Address: %s port %s\n", host, port);
-
- char timestr[32] = "never";
- time_t lsc_time = last_state_change;
-
- if(last_state_change)
- strftime(timestr, sizeof timestr, "%Y-%m-%d %H:%M:%S", localtime(&lsc_time));
-
- status = status_union.bits;
-
- if(status.reachable)
- printf("Online since: %s\n", timestr);
- else
- printf("Last seen: %s\n", timestr);
-
- printf("Status: ");
- if(status.validkey)
- printf(" validkey");
- if(status.visited)
- printf(" visited");
- if(status.reachable)
- printf(" reachable");
- if(status.indirect)
- printf(" indirect");
- if(status.sptps)
- printf(" sptps");
- if(status.udp_confirmed)
- printf(" udp_confirmed");
- printf("\n");
-
- printf("Options: ");
- if(options & OPTION_INDIRECT)
- printf(" indirect");
- if(options & OPTION_TCPONLY)
- printf(" tcponly");
- if(options & OPTION_PMTU_DISCOVERY)
- printf(" pmtu_discovery");
- if(options & OPTION_CLAMP_MSS)
- printf(" clamp_mss");
- printf("\n");
- printf("Protocol: %d.%d\n", PROT_MAJOR, OPTION_VERSION(options));
- printf("Reachability: ");
- if(!strcmp(host, "MYSELF"))
- printf("can reach itself\n");
- else if(!status.reachable)
- printf("unreachable\n");
- else if(strcmp(via, item))
- printf("indirectly via %s\n", via);
- else if(!status.validkey)
- printf("unknown\n");
- else if(minmtu > 0)
- printf("directly with UDP\nPMTU: %d\n", pmtu);
- else if(!strcmp(nexthop, item))
- printf("directly with TCP\n");
- else
- printf("none, forwarded via %s\n", nexthop);
-
- // List edges
- printf("Edges: ");
- sendline(fd, "%d %d %s", CONTROL, REQ_DUMP_EDGES, item);
- while(recvline(fd, line, sizeof line)) {
- int n = sscanf(line, "%d %d %s %s", &code, &req, from, to);
- if(n == 2)
- break;
- if(n != 4) {
- fprintf(stderr, "Unable to parse edge dump from tincd.\n%s\n", line);
- return 1;
- }
- if(!strcmp(from, item))
- printf(" %s", to);
- }
- printf("\n");
-
- // List subnets
- printf("Subnets: ");
- sendline(fd, "%d %d %s", CONTROL, REQ_DUMP_SUBNETS, item);
- while(recvline(fd, line, sizeof line)) {
- int n = sscanf(line, "%d %d %s %s", &code, &req, subnet, from);
- if(n == 2)
- break;
- if(n != 4) {
- fprintf(stderr, "Unable to parse subnet dump from tincd.\n");
- return 1;
- }
- if(!strcmp(from, item))
- printf(" %s", strip_weight(subnet));
- }
- printf("\n");
-
- return 0;
-}
-
-static int info_subnet(int fd, const char *item) {
- subnet_t subnet, find;
-
- if(!str2net(&find, item)) {
- fprintf(stderr, "Could not parse subnet or address '%s'.\n", item);
- return 1;
- }
-
- bool address = !strchr(item, '/');
- bool weight = strchr(item, '#');
- bool found = false;
-
- char line[4096];
- char netstr[4096];
- char owner[4096];
-
- int code, req;
-
- sendline(fd, "%d %d %s", CONTROL, REQ_DUMP_SUBNETS, item);
- while(recvline(fd, line, sizeof line)) {
- int n = sscanf(line, "%d %d %s %s", &code, &req, netstr, owner);
- if(n == 2)
- break;
-
- if(n != 4 || !str2net(&subnet, netstr)) {
- fprintf(stderr, "Unable to parse subnet dump from tincd.\n");
- return 1;
- }
-
- if(find.type != subnet.type)
- continue;
-
- if(weight) {
- if(find.weight != subnet.weight)
- continue;
- }
-
- if(find.type == SUBNET_IPV4) {
- if(address) {
- if(maskcmp(&find.net.ipv4.address, &subnet.net.ipv4.address, subnet.net.ipv4.prefixlength))
- continue;
- } else {
- if(find.net.ipv4.prefixlength != subnet.net.ipv4.prefixlength)
- continue;
- if(memcmp(&find.net.ipv4.address, &subnet.net.ipv4.address, sizeof subnet.net.ipv4))
- continue;
- }
- } else if(find.type == SUBNET_IPV6) {
- if(address) {
- if(maskcmp(&find.net.ipv6.address, &subnet.net.ipv6.address, subnet.net.ipv6.prefixlength))
- continue;
- } else {
- if(find.net.ipv6.prefixlength != subnet.net.ipv6.prefixlength)
- continue;
- if(memcmp(&find.net.ipv6.address, &subnet.net.ipv6.address, sizeof subnet.net.ipv6))
- continue;
- }
- } if(find.type == SUBNET_MAC) {
- if(memcmp(&find.net.mac.address, &subnet.net.mac.address, sizeof subnet.net.mac))
- continue;
- }
-
- found = true;
- printf("Subnet: %s\n", strip_weight(netstr));
- printf("Owner: %s\n", owner);
- }
-
- if(!found) {
- if(address)
- fprintf(stderr, "Unknown address %s.\n", item);
- else
- fprintf(stderr, "Unknown subnet %s.\n", item);
- return 1;
- }
-
- return 0;
-}
-
-int info(int fd, const char *item) {
- if(check_id(item))
- return info_node(fd, item);
- if(strchr(item, '.') || strchr(item, ':'))
- return info_subnet(fd, item);
-
- fprintf(stderr, "Argument is not a node name, subnet or address.\n");
- return 1;
-}
projects / meshlink / blobdiff