788 lines
18 KiB
C
788 lines
18 KiB
C
/*
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* Copyright (C) 2008 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* $Id$
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*/
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#define _GNU_SOURCE
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#include <getopt.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <time.h>
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#include <debug.h>
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#include <library.h>
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#include <utils/host.h>
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/**
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* global database handle
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*/
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database_t *db;
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/**
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* --start/--end addresses of various subcommands
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*/
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host_t *start = NULL, *end = NULL;
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/**
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* calculate the size of a pool using start and end address chunk
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*/
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static u_int get_pool_size(chunk_t start, chunk_t end)
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{
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u_int *start_ptr, *end_ptr;
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if (start.len < sizeof(u_int) || end.len < sizeof(u_int))
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{
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return 0;
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}
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start_ptr = (u_int*)(start.ptr + start.len - sizeof(u_int));
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end_ptr = (u_int*)(end.ptr + end.len - sizeof(u_int));
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return ntohl(*end_ptr) - ntohl(*start_ptr) + 1;
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}
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/**
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* print usage info
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*/
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static void usage(void)
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{
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printf("\
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Usage:\n\
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ipsec pool --status|--add|--del|--resize|--purge [options]\n\
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\n\
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ipsec pool --status\n\
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Show a list of installed pools with statistics.\n\
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\n\
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ipsec pool --add <name> --start <start> --end <end> [--timeout <timeout>]\n\
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Add a new pool to the database.\n\
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name: Name of the pool, as used in ipsec.conf rightsourceip=%%name\n\
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start: Start address of the pool\n\
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end: End address of the pool\n\
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timeout: Lease time in hours, 0 for static leases\n\
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\n\
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ipsec pool --del <name>\n\
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Delete a pool from the database.\n\
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name: Name of the pool to delete\n\
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\n\
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ipsec pool --resize <name> --end <end>\n\
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Grow or shrink an existing pool.\n\
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name: Name of the pool to resize\n\
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end: New end address for the pool\n\
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\n\
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ipsec pool --leases [--filter <filter>] [--utc]\n\
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Show lease information using filters:\n\
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filter: Filter string containing comma separated key=value filters,\n\
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e.g. id=alice@strongswan.org,addr=1.1.1.1\n\
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pool: name of the pool\n\
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id: assigned identity of the lease\n\
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addr: lease IP address\n\
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tstamp: UNIX timestamp when lease was valid, as integer\n\
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status: status of the lease: online|valid|expired\n\
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utc: Show times in UTC instead of local time\n\
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\n\
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ipsec pool --purge <name>\n\
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Delete lease history of a pool:\n\
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name: Name of the pool to purge\n\
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\n");
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exit(0);
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}
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/**
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* ipsec pool --status - show pool overview
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*/
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static void status(void)
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{
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enumerator_t *pool, *lease;
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bool found = FALSE;
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pool = db->query(db, "SELECT id, name, start, end, timeout FROM pools",
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DB_INT, DB_TEXT, DB_BLOB, DB_BLOB, DB_UINT);
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if (pool)
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{
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char *name;
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chunk_t start_chunk, end_chunk;
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host_t *start, *end;
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u_int id, timeout, online = 0, used = 0, size = 0;
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while (pool->enumerate(pool, &id, &name,
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&start_chunk, &end_chunk, &timeout))
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{
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if (!found)
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{
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printf("%8s %15s %15s %8s %6s %11s %11s\n", "name", "start",
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"end", "timeout", "size", "online", "usage");
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found = TRUE;
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}
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start = host_create_from_chunk(AF_UNSPEC, start_chunk, 0);
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end = host_create_from_chunk(AF_UNSPEC, end_chunk, 0);
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size = get_pool_size(start_chunk, end_chunk);
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printf("%8s %15H %15H ", name, start, end);
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if (timeout)
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{
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printf("%7dh ", timeout/3600);
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}
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else
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{
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printf("%8s ", "static");
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}
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printf("%6d ", size);
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/* get number of online hosts */
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lease = db->query(db, "SELECT COUNT(*) FROM addresses "
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"WHERE pool = ? AND released = 0",
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DB_UINT, id, DB_INT);
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if (lease)
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{
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lease->enumerate(lease, &online);
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lease->destroy(lease);
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}
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printf("%5d (%2d%%) ", online, online*100/size);
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/* get number of online or valid lieases */
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lease = db->query(db, "SELECT COUNT(*) FROM addresses "
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"WHERE addresses.pool = ? "
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"AND ((? AND acquired != 0) "
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" OR released = 0 OR released > ?) ",
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DB_UINT, id, DB_UINT, !timeout,
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DB_UINT, time(NULL) - timeout, DB_UINT);
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if (lease)
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{
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lease->enumerate(lease, &used);
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lease->destroy(lease);
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}
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printf("%5d (%2d%%) ", used, used*100/size);
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printf("\n");
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DESTROY_IF(start);
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DESTROY_IF(end);
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}
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pool->destroy(pool);
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}
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if (!found)
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{
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printf("no pools found.\n");
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}
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exit(0);
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}
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/**
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* increment a chunk, as it would reprensent a network order integer
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*/
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static void increment_chunk(chunk_t chunk)
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{
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int i;
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for (i = chunk.len - 1; i >= 0; i--)
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{
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if (++chunk.ptr[i] != 0)
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{
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return;
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}
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}
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}
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/**
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* ipsec pool --add - add a new pool
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*/
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static void add(char *name, host_t *start, host_t *end, int timeout)
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{
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chunk_t start_addr, end_addr, cur_addr;
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u_int id, count;
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start_addr = start->get_address(start);
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end_addr = end->get_address(end);
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cur_addr = chunk_clonea(start_addr);
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count = get_pool_size(start_addr, end_addr);
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if (start_addr.len != end_addr.len ||
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memcmp(start_addr.ptr, end_addr.ptr, start_addr.len) > 0)
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{
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fprintf(stderr, "invalid start/end pair specified.\n");
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exit(-1);
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}
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if (db->execute(db, &id,
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"INSERT INTO pools (name, start, end, timeout) "
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"VALUES (?, ?, ?, ?)",
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DB_TEXT, name, DB_BLOB, start_addr,
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DB_BLOB, end_addr, DB_INT, timeout*3600) != 1)
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{
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fprintf(stderr, "creating pool failed.\n");
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exit(-1);
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}
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printf("allocating %d addresses... ", count);
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fflush(stdout);
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if (db->get_driver(db) == DB_SQLITE)
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{ /* run population in a transaction for sqlite */
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db->execute(db, NULL, "BEGIN TRANSACTION");
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}
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while (TRUE)
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{
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db->execute(db, NULL,
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"INSERT INTO addresses (pool, address, identity, acquired, released) "
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"VALUES (?, ?, ?, ?, ?)",
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DB_UINT, id, DB_BLOB, cur_addr, DB_UINT, 0, DB_UINT, 0, DB_UINT, 1);
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if (chunk_equals(cur_addr, end_addr))
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{
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break;
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}
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increment_chunk(cur_addr);
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}
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if (db->get_driver(db) == DB_SQLITE)
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{
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db->execute(db, NULL, "END TRANSACTION");
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}
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printf("done.\n", count);
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exit(0);
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}
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/**
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* ipsec pool --del - delete a pool
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*/
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static void del(char *name)
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{
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enumerator_t *query;
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u_int id;
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bool found = FALSE;
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query = db->query(db, "SELECT id FROM pools WHERE name = ?",
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DB_TEXT, name, DB_UINT);
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if (!query)
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{
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fprintf(stderr, "deleting pool failed.\n");
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exit(-1);
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}
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while (query->enumerate(query, &id))
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{
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found = TRUE;
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if (db->execute(db, NULL,
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"DELETE FROM leases WHERE address IN ("
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" SELECT id FROM addresses WHERE pool = ?)", DB_UINT, id) < 0 ||
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db->execute(db, NULL,
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"DELETE FROM addresses WHERE pool = ?", DB_UINT, id) < 0 ||
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db->execute(db, NULL,
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"DELETE FROM pools WHERE id = ?", DB_UINT, id) < 0)
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{
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fprintf(stderr, "deleting pool failed.\n");
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query->destroy(query);
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exit(-1);
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}
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}
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query->destroy(query);
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if (!found)
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{
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fprintf(stderr, "pool '%s' not found.\n", name);
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exit(-1);
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}
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exit(0);
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}
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/**
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* ipsec pool --resize - resize a pool
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*/
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static void resize(char *name, host_t *end)
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{
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enumerator_t *query;
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chunk_t old_addr, new_addr, cur_addr;
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u_int id, count;
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new_addr = end->get_address(end);
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query = db->query(db, "SELECT id, end FROM pools WHERE name = ?",
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DB_TEXT, name, DB_UINT, DB_BLOB);
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if (!query || !query->enumerate(query, &id, &old_addr))
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{
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DESTROY_IF(query);
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fprintf(stderr, "resizing pool failed.\n");
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exit(-1);
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}
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if (old_addr.len != new_addr.len ||
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memcmp(new_addr.ptr, old_addr.ptr, old_addr.len) < 0)
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{
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fprintf(stderr, "shrinking of pools not supported.\n");
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query->destroy(query);
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exit(-1);
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}
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cur_addr = chunk_clonea(old_addr);
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count = get_pool_size(old_addr, new_addr) - 1;
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query->destroy(query);
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if (db->execute(db, NULL,
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"UPDATE pools SET end = ? WHERE name = ?",
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DB_BLOB, new_addr, DB_TEXT, name) <= 0)
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{
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fprintf(stderr, "pool '%s' not found.\n", name);
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exit(-1);
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}
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printf("allocating %d new addresses... ", count);
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fflush(stdout);
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if (db->get_driver(db) == DB_SQLITE)
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{ /* run population in a transaction for sqlite */
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db->execute(db, NULL, "BEGIN TRANSACTION");
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}
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while (count-- > 0)
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{
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increment_chunk(cur_addr);
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db->execute(db, NULL,
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"INSERT INTO addresses (pool, address, identity, acquired, released) "
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"VALUES (?, ?, ?, ?, ?)",
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DB_UINT, id, DB_BLOB, cur_addr, DB_UINT, 0, DB_UINT, 0, DB_UINT, 1);
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}
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if (db->get_driver(db) == DB_SQLITE)
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{
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db->execute(db, NULL, "END TRANSACTION");
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}
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printf("done.\n", count);
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exit(0);
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}
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/**
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* create the lease query using the filter string
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*/
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static enumerator_t *create_lease_query(char *filter)
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{
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enumerator_t *query;
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identification_t *id = NULL;
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host_t *addr = NULL;
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u_int tstamp = 0;
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bool online = FALSE, valid = FALSE, expired = FALSE;
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char *value, *pos, *pool = NULL;
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enum {
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FIL_POOL = 0,
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FIL_ID,
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FIL_ADDR,
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FIL_TSTAMP,
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FIL_STATE,
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};
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char *const token[] = {
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[FIL_POOL] = "pool",
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[FIL_ID] = "id",
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[FIL_ADDR] = "addr",
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[FIL_TSTAMP] = "tstamp",
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[FIL_STATE] = "status",
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NULL
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};
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/* if the filter string contains a distinguished name as a ID, we replace
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* ", " by "/ " in order to not confuse the getsubopt parser */
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pos = filter;
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while ((pos = strchr(pos, ',')))
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{
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if (pos[1] == ' ')
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{
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pos[0] = '/';
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}
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pos++;
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}
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while (filter && *filter != '\0')
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{
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switch (getsubopt(&filter, token, &value))
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{
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case FIL_POOL:
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if (value)
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{
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pool = value;
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}
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break;
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case FIL_ID:
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if (value)
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{
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id = identification_create_from_string(value);
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}
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break;
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case FIL_ADDR:
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if (value)
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{
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addr = host_create_from_string(value, 0);
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}
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if (!addr)
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{
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fprintf(stderr, "invalid 'addr' in filter string.\n");
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exit(-1);
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}
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break;
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case FIL_TSTAMP:
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if (value)
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{
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tstamp = atoi(value);
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}
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if (tstamp == 0)
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{
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online = TRUE;
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}
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break;
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case FIL_STATE:
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if (value)
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{
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if (streq(value, "online"))
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{
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online = TRUE;
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}
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else if (streq(value, "valid"))
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{
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valid = TRUE;
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}
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else if (streq(value, "expired"))
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{
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expired = TRUE;
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}
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else
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{
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fprintf(stderr, "invalid 'state' in filter string.\n");
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exit(-1);
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}
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}
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break;
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default:
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fprintf(stderr, "invalid filter string.\n");
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exit(-1);
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break;
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}
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}
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query = db->query(db,
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"SELECT name, addresses.address, identities.type, "
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"identities.data, leases.acquired, leases.released, timeout "
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"FROM leases JOIN addresses ON leases.address = addresses.id "
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"JOIN pools ON addresses.pool = pools.id "
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"JOIN identities ON leases.identity = identities.id "
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"WHERE (? OR name = ?) "
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"AND (? OR (identities.type = ? AND identities.data = ?)) "
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"AND (? OR addresses.address = ?) "
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"AND (? OR (? >= leases.acquired AND (? <= leases.released))) "
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"AND (? OR leases.released > ? - timeout) "
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"AND (? OR leases.released < ? - timeout) "
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"AND ? "
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"UNION "
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"SELECT name, address, identities.type, identities.data, "
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"acquired, released, timeout FROM addresses "
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"JOIN pools ON addresses.pool = pools.id "
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"JOIN identities ON addresses.identity = identities.id "
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"WHERE ? AND released = 0 "
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"AND (? OR name = ?) "
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"AND (? OR (identities.type = ? AND identities.data = ?)) "
|
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"AND (? OR address = ?)",
|
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DB_INT, pool == NULL, DB_TEXT, pool,
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DB_INT, id == NULL,
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DB_INT, id ? id->get_type(id) : 0,
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DB_BLOB, id ? id->get_encoding(id) : chunk_empty,
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DB_INT, addr == NULL,
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DB_BLOB, addr ? addr->get_address(addr) : chunk_empty,
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DB_INT, tstamp == 0, DB_UINT, tstamp, DB_UINT, tstamp,
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DB_INT, !valid, DB_INT, time(NULL),
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DB_INT, !expired, DB_INT, time(NULL),
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DB_INT, !online,
|
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/* union */
|
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DB_INT, !(valid || expired),
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DB_INT, pool == NULL, DB_TEXT, pool,
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DB_INT, id == NULL,
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DB_INT, id ? id->get_type(id) : 0,
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DB_BLOB, id ? id->get_encoding(id) : chunk_empty,
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DB_INT, addr == NULL,
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DB_BLOB, addr ? addr->get_address(addr) : chunk_empty,
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/* res */
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DB_TEXT, DB_BLOB, DB_INT, DB_BLOB, DB_UINT, DB_UINT, DB_UINT);
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/* id and addr leak but we can't destroy them until query is destroyed. */
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return query;
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}
|
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|
|
/**
|
|
* ipsec pool --leases - show lease information of a pool
|
|
*/
|
|
static void leases(char *filter, bool utc)
|
|
{
|
|
enumerator_t *query;
|
|
chunk_t address_chunk, identity_chunk;
|
|
int identity_type;
|
|
char *name;
|
|
u_int acquired, released, timeout;
|
|
host_t *address;
|
|
identification_t *identity;
|
|
bool found = FALSE;
|
|
|
|
query = create_lease_query(filter);
|
|
if (!query)
|
|
{
|
|
fprintf(stderr, "querying leases failed.\n");
|
|
exit(-1);
|
|
}
|
|
while (query->enumerate(query, &name, &address_chunk, &identity_type,
|
|
&identity_chunk, &acquired, &released, &timeout))
|
|
{
|
|
if (!found)
|
|
{
|
|
int len = utc ? 25 : 21;
|
|
|
|
found = TRUE;
|
|
printf("%-8s %-15s %-7s %-*s %-*s %s\n",
|
|
"name", "address", "status", len, "start", len, "end", "identity");
|
|
}
|
|
address = host_create_from_chunk(AF_UNSPEC, address_chunk, 0);
|
|
identity = identification_create_from_encoding(identity_type, identity_chunk);
|
|
|
|
printf("%-8s %-15H ", name, address);
|
|
if (released == 0)
|
|
{
|
|
printf("%-7s ", "online");
|
|
}
|
|
else if (timeout == 0)
|
|
{
|
|
printf("%-7s ", "static");
|
|
}
|
|
else if (released >= time(NULL) - timeout)
|
|
{
|
|
printf("%-7s ", "valid");
|
|
}
|
|
else
|
|
{
|
|
printf("%-7s ", "expired");
|
|
}
|
|
|
|
printf(" %T ", &acquired, utc);
|
|
if (released)
|
|
{
|
|
printf("%T ", &released, utc);
|
|
}
|
|
else
|
|
{
|
|
printf(" ");
|
|
if (utc)
|
|
{
|
|
printf(" ");
|
|
}
|
|
}
|
|
printf("%D\n", identity);
|
|
DESTROY_IF(address);
|
|
identity->destroy(identity);
|
|
}
|
|
query->destroy(query);
|
|
if (!found)
|
|
{
|
|
fprintf(stderr, "no matching leases found.\n");
|
|
exit(-1);
|
|
}
|
|
exit(0);
|
|
}
|
|
|
|
/**
|
|
* ipsec pool --purge - delete expired leases
|
|
*/
|
|
static void purge(char *name)
|
|
{
|
|
int purged = 0;
|
|
|
|
purged = db->execute(db, NULL,
|
|
"DELETE FROM leases WHERE address IN ("
|
|
" SELECT id FROM addresses WHERE pool IN ("
|
|
" SELECT id FROM pools WHERE name = ?))",
|
|
DB_TEXT, name);
|
|
if (purged < 0)
|
|
{
|
|
fprintf(stderr, "purging pool '%s' failed.\n", name);
|
|
exit(-1);
|
|
}
|
|
fprintf(stderr, "purged %d leases in pool '%s'.\n", purged, name);
|
|
exit(0);
|
|
}
|
|
|
|
/**
|
|
* atexit handler to close db on shutdown
|
|
*/
|
|
static void cleanup(void)
|
|
{
|
|
db->destroy(db);
|
|
DESTROY_IF(start);
|
|
DESTROY_IF(end);
|
|
}
|
|
|
|
/**
|
|
* Logging hook for library logs, using stderr output
|
|
*/
|
|
static void dbg_stderr(int level, char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
|
|
if (level <= 1)
|
|
{
|
|
va_start(args, fmt);
|
|
vfprintf(stderr, fmt, args);
|
|
fprintf(stderr, "\n");
|
|
va_end(args);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
char *uri, *name = "", *filter = "";
|
|
int timeout = 0;
|
|
bool utc = FALSE;
|
|
enum {
|
|
OP_USAGE,
|
|
OP_STATUS,
|
|
OP_ADD,
|
|
OP_DEL,
|
|
OP_RESIZE,
|
|
OP_LEASES,
|
|
OP_PURGE,
|
|
} operation = OP_USAGE;
|
|
|
|
dbg = dbg_stderr;
|
|
library_init(STRONGSWAN_CONF);
|
|
atexit(library_deinit);
|
|
lib->plugins->load(lib->plugins, IPSEC_PLUGINDIR,
|
|
lib->settings->get_str(lib->settings, "pool.load", PLUGINS));
|
|
|
|
uri = lib->settings->get_str(lib->settings, "charon.plugins.sql.database", NULL);
|
|
if (!uri)
|
|
{
|
|
fprintf(stderr, "database URI charon.plugins.sql.database not set.\n");
|
|
exit(-1);
|
|
}
|
|
db = lib->db->create(lib->db, uri);
|
|
if (!db)
|
|
{
|
|
fprintf(stderr, "opening database failed.\n");
|
|
exit(-1);
|
|
}
|
|
atexit(cleanup);
|
|
|
|
while (TRUE)
|
|
{
|
|
int c;
|
|
|
|
struct option long_opts[] = {
|
|
{ "help", no_argument, NULL, 'h' },
|
|
|
|
{ "utc", no_argument, NULL, 'u' },
|
|
{ "status", no_argument, NULL, 'w' },
|
|
{ "add", required_argument, NULL, 'a' },
|
|
{ "del", required_argument, NULL, 'd' },
|
|
{ "resize", required_argument, NULL, 'r' },
|
|
{ "leases", no_argument, NULL, 'l' },
|
|
{ "purge", required_argument, NULL, 'p' },
|
|
|
|
{ "start", required_argument, NULL, 's' },
|
|
{ "end", required_argument, NULL, 'e' },
|
|
{ "timeout", required_argument, NULL, 't' },
|
|
{ "filter", required_argument, NULL, 'f' },
|
|
{ 0,0,0,0 }
|
|
};
|
|
|
|
c = getopt_long(argc, argv, "", long_opts, NULL);
|
|
switch (c)
|
|
{
|
|
case EOF:
|
|
break;
|
|
case 'h':
|
|
break;
|
|
case 'w':
|
|
operation = OP_STATUS;
|
|
break;
|
|
case 'u':
|
|
utc = TRUE;
|
|
continue;
|
|
case 'a':
|
|
operation = OP_ADD;
|
|
name = optarg;
|
|
continue;
|
|
case 'd':
|
|
operation = OP_DEL;
|
|
name = optarg;
|
|
continue;
|
|
case 'r':
|
|
operation = OP_RESIZE;
|
|
name = optarg;
|
|
continue;
|
|
case 'l':
|
|
operation = OP_LEASES;
|
|
continue;
|
|
case 'p':
|
|
operation = OP_PURGE;
|
|
name = optarg;
|
|
continue;
|
|
case 's':
|
|
start = host_create_from_string(optarg, 0);
|
|
if (start == NULL)
|
|
{
|
|
fprintf(stderr, "invalid start address: '%s'.\n", optarg);
|
|
operation = OP_USAGE;
|
|
break;
|
|
}
|
|
continue;
|
|
case 'e':
|
|
end = host_create_from_string(optarg, 0);
|
|
if (end == NULL)
|
|
{
|
|
fprintf(stderr, "invalid end address: '%s'.\n", optarg);
|
|
operation = OP_USAGE;
|
|
break;
|
|
}
|
|
continue;
|
|
case 't':
|
|
timeout = atoi(optarg);
|
|
if (timeout == 0 && strcmp(optarg, "0") != 0)
|
|
{
|
|
fprintf(stderr, "invalid timeout '%s'.\n", optarg);
|
|
operation = OP_USAGE;
|
|
break;
|
|
}
|
|
continue;
|
|
case 'f':
|
|
filter = optarg;
|
|
continue;
|
|
default:
|
|
operation = OP_USAGE;
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
switch (operation)
|
|
{
|
|
case OP_USAGE:
|
|
usage();
|
|
break;
|
|
case OP_STATUS:
|
|
status();
|
|
break;
|
|
case OP_ADD:
|
|
if (start == NULL || end == NULL)
|
|
{
|
|
fprintf(stderr, "missing arguments.\n");
|
|
usage();
|
|
}
|
|
add(name, start, end, timeout);
|
|
break;
|
|
case OP_DEL:
|
|
del(name);
|
|
break;
|
|
case OP_RESIZE:
|
|
if (end == NULL)
|
|
{
|
|
fprintf(stderr, "missing arguments.\n");
|
|
usage();
|
|
}
|
|
resize(name, end);
|
|
break;
|
|
case OP_LEASES:
|
|
leases(filter, utc);
|
|
break;
|
|
case OP_PURGE:
|
|
purge(name);
|
|
break;
|
|
}
|
|
exit(0);
|
|
}
|
|
|