1*4080edd5Syasuoka /* $OpenBSD: npppd.c,v 1.39 2015/01/08 07:34:05 yasuoka Exp $ */ 2e109dc18Syasuoka 30fbf3537Syasuoka /*- 44a39ccd0Sderaadt * Copyright (c) 2005-2008,2009 Internet Initiative Japan Inc. 50fbf3537Syasuoka * All rights reserved. 60fbf3537Syasuoka * 70fbf3537Syasuoka * Redistribution and use in source and binary forms, with or without 80fbf3537Syasuoka * modification, are permitted provided that the following conditions 90fbf3537Syasuoka * are met: 100fbf3537Syasuoka * 1. Redistributions of source code must retain the above copyright 110fbf3537Syasuoka * notice, this list of conditions and the following disclaimer. 120fbf3537Syasuoka * 2. Redistributions in binary form must reproduce the above copyright 130fbf3537Syasuoka * notice, this list of conditions and the following disclaimer in the 140fbf3537Syasuoka * documentation and/or other materials provided with the distribution. 150fbf3537Syasuoka * 160fbf3537Syasuoka * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 170fbf3537Syasuoka * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 180fbf3537Syasuoka * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 190fbf3537Syasuoka * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 200fbf3537Syasuoka * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 210fbf3537Syasuoka * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 220fbf3537Syasuoka * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 230fbf3537Syasuoka * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 240fbf3537Syasuoka * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 250fbf3537Syasuoka * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 260fbf3537Syasuoka * SUCH DAMAGE. 270fbf3537Syasuoka */ 280fbf3537Syasuoka /**@file 29f0a4e295Syasuoka * Next pppd(nppd). This file provides a npppd daemon process and operations 30f0a4e295Syasuoka * for npppd instance. 310fbf3537Syasuoka * @author Yasuoka Masahiko 32*4080edd5Syasuoka * $Id: npppd.c,v 1.39 2015/01/08 07:34:05 yasuoka Exp $ 330fbf3537Syasuoka */ 340fbf3537Syasuoka #include "version.h" 350fbf3537Syasuoka #include <sys/types.h> 360fbf3537Syasuoka #include <sys/socket.h> 370fbf3537Syasuoka #include <sys/param.h> 380fbf3537Syasuoka #include <sys/sysctl.h> 395fefcc09Syasuoka #include <sys/wait.h> 400fbf3537Syasuoka #include <netinet/in.h> 410fbf3537Syasuoka #include <netinet/ip.h> 420fbf3537Syasuoka #include <net/route.h> 430fbf3537Syasuoka #include <arpa/inet.h> 440fbf3537Syasuoka #include <net/if_dl.h> 450fbf3537Syasuoka #include <unistd.h> 460fbf3537Syasuoka #include <time.h> 470fbf3537Syasuoka #include <syslog.h> 480fbf3537Syasuoka #include <string.h> 490fbf3537Syasuoka #include <stdlib.h> 500fbf3537Syasuoka #include <stdio.h> 510fbf3537Syasuoka #include <signal.h> 520fbf3537Syasuoka #include <netdb.h> 530fbf3537Syasuoka #include <libgen.h> 540fbf3537Syasuoka #include <fcntl.h> 550fbf3537Syasuoka #include <event.h> 560fbf3537Syasuoka #include <errno.h> 570fbf3537Syasuoka #include <ifaddrs.h> 584a78f66bSyasuoka #include <err.h> 594a78f66bSyasuoka #include <pwd.h> 600fbf3537Syasuoka 610fbf3537Syasuoka #include "pathnames.h" 620fbf3537Syasuoka #include "debugutil.h" 630fbf3537Syasuoka #include "addr_range.h" 640fbf3537Syasuoka #include "npppd_subr.h" 650fbf3537Syasuoka #include "npppd_local.h" 660fbf3537Syasuoka #include "npppd_auth.h" 670fbf3537Syasuoka #include "radish.h" 680fbf3537Syasuoka #include "net_utils.h" 690fbf3537Syasuoka #include "time_utils.h" 700fbf3537Syasuoka 71b56612b6Smarkus #include "l2tp_local.h" /* XXX sa_cookie */ 72b56612b6Smarkus 730fbf3537Syasuoka #ifdef USE_NPPPD_ARP 740fbf3537Syasuoka #include "npppd_arp.h" 750fbf3537Syasuoka #endif 760fbf3537Syasuoka 770fbf3537Syasuoka #ifdef USE_NPPPD_PIPEX 780fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 790fbf3537Syasuoka #include "pppoe_local.h" 800fbf3537Syasuoka #endif /* USE_NPPPD_PPPOE */ 810fbf3537Syasuoka #include "psm-opt.h" 820fbf3537Syasuoka #include <sys/ioctl.h> 830fbf3537Syasuoka #if defined(__NetBSD__) 840fbf3537Syasuoka #include <net/if_ether.h> 850fbf3537Syasuoka #else 860fbf3537Syasuoka #include <netinet/if_ether.h> 870fbf3537Syasuoka #endif 88886d2b78Syasuoka #include <netinet/ip_var.h> 89886d2b78Syasuoka #include <net/if_types.h> 900fbf3537Syasuoka #include <net/pipex.h> 910fbf3537Syasuoka #endif /* USE_NPPPD_PIPEX */ 920fbf3537Syasuoka 9359408346Syasuoka #include "accept.h" 9459408346Syasuoka #include "log.h" 9559408346Syasuoka 960fbf3537Syasuoka static npppd s_npppd; /* singleton */ 970fbf3537Syasuoka 980fbf3537Syasuoka static void npppd_reload0 (npppd *); 99821f7c56Syasuoka static void npppd_update_pool_reference (npppd *); 1000fbf3537Syasuoka static int npppd_rd_walktree_delete(struct radish_head *); 1010fbf3537Syasuoka static void usage (void); 1020fbf3537Syasuoka static void npppd_stop_really (npppd *); 1030fbf3537Syasuoka static uint32_t str_hash(const void *, int); 1040fbf3537Syasuoka static void npppd_on_sighup (int, short, void *); 1050fbf3537Syasuoka static void npppd_on_sigterm (int, short, void *); 1060fbf3537Syasuoka static void npppd_on_sigint (int, short, void *); 1075fefcc09Syasuoka static void npppd_on_sigchld (int, short, void *); 1080fbf3537Syasuoka static void npppd_reset_timer(npppd *); 1090fbf3537Syasuoka static void npppd_timer(int, short, void *); 1100fbf3537Syasuoka static void npppd_auth_finalizer_periodic(npppd *); 1110fbf3537Syasuoka static int rd2slist_walk (struct radish *, void *); 1120fbf3537Syasuoka static int rd2slist (struct radish_head *, slist *); 11334682664Syasuoka static slist *npppd_get_ppp_by_user (npppd *, const char *); 11434682664Syasuoka static int npppd_get_all_users (npppd *, slist *); 1150fbf3537Syasuoka 1160fbf3537Syasuoka #ifndef NO_ROUTE_FOR_POOLED_ADDRESS 1170fbf3537Syasuoka static struct in_addr loop; /* initialize at npppd_init() */ 1180fbf3537Syasuoka #endif 1190fbf3537Syasuoka static uint32_t str_hash(const void *, int); 1200fbf3537Syasuoka 1210fbf3537Syasuoka #ifdef USE_NPPPD_PIPEX 1220fbf3537Syasuoka static int npppd_ppp_pipex_ip_disable(npppd *, npppd_ppp *); 1230fbf3537Syasuoka static void pipex_periodic(npppd *); 1240fbf3537Syasuoka #endif /* USE_NPPPD_PIPEX */ 1250fbf3537Syasuoka 1260fbf3537Syasuoka #ifdef NPPPD_DEBUG 1270fbf3537Syasuoka #define NPPPD_DBG(x) log_printf x 1280fbf3537Syasuoka #define NPPPD_ASSERT(x) ASSERT(x) 1290fbf3537Syasuoka #else 1300fbf3537Syasuoka #define NPPPD_DBG(x) 1310fbf3537Syasuoka #define NPPPD_ASSERT(x) 1320fbf3537Syasuoka #endif 1330fbf3537Syasuoka 1340fbf3537Syasuoka /*********************************************************************** 135f0a4e295Syasuoka * Daemon process 1360fbf3537Syasuoka ***********************************************************************/ 1370fbf3537Syasuoka int main (int, char *[]); 138821f7c56Syasuoka int debugsyslog = 0; /* used by log.c */ 1390fbf3537Syasuoka 1400fbf3537Syasuoka int 1410fbf3537Syasuoka main(int argc, char *argv[]) 1420fbf3537Syasuoka { 143821f7c56Syasuoka int ch, stop_by_error, runasdaemon = 1, nflag = 0; 1440fbf3537Syasuoka extern char *optarg; 1450fbf3537Syasuoka const char *npppd_conf0 = DEFAULT_NPPPD_CONF; 1464a78f66bSyasuoka struct passwd *pw; 1470fbf3537Syasuoka 148821f7c56Syasuoka while ((ch = getopt(argc, argv, "nf:dh")) != -1) { 1490fbf3537Syasuoka switch (ch) { 150821f7c56Syasuoka case 'n': 151821f7c56Syasuoka nflag = 1; 1520fbf3537Syasuoka break; 153821f7c56Syasuoka case 'f': 1540fbf3537Syasuoka npppd_conf0 = optarg; 1550fbf3537Syasuoka break; 1560fbf3537Syasuoka case 'd': 1570fbf3537Syasuoka debuglevel++; 158821f7c56Syasuoka runasdaemon = 0; 1590fbf3537Syasuoka break; 1600fbf3537Syasuoka case '?': 1610fbf3537Syasuoka case 'h': 1620fbf3537Syasuoka usage(); 1630fbf3537Syasuoka exit(1); 1640fbf3537Syasuoka } 1650fbf3537Syasuoka } 166821f7c56Syasuoka argc -= optind; 167821f7c56Syasuoka argv += optind; 168821f7c56Syasuoka if (argc != 0) { 169821f7c56Syasuoka usage(); 170821f7c56Syasuoka exit(1); 171821f7c56Syasuoka } 172821f7c56Syasuoka if (nflag) { 173821f7c56Syasuoka debuglevel++; 174821f7c56Syasuoka runasdaemon = 0; 175821f7c56Syasuoka } 176821f7c56Syasuoka 177821f7c56Syasuoka /* for log.c */ 178821f7c56Syasuoka log_init(debuglevel); 1790fbf3537Syasuoka if (debuglevel > 0) { 180821f7c56Syasuoka /* for ../common/debugutil.c */ 1810fbf3537Syasuoka debug_set_debugfp(stderr); 1820fbf3537Syasuoka debug_use_syslog(0); 183821f7c56Syasuoka } 1840fbf3537Syasuoka if (runasdaemon) 1850fbf3537Syasuoka daemon(0, 0); 1860fbf3537Syasuoka 1874a78f66bSyasuoka /* check for root privileges */ 1884a78f66bSyasuoka if (geteuid()) 1894a78f66bSyasuoka errx(1, "need root privileges"); 1904a78f66bSyasuoka /* check for npppd user */ 1914a78f66bSyasuoka if (getpwnam(NPPPD_USER) == NULL) 1924a78f66bSyasuoka errx(1, "unknown user %s", NPPPD_USER); 1934a78f66bSyasuoka 1944a78f66bSyasuoka if (privsep_init() != 0) 1954a78f66bSyasuoka err(1, "cannot drop privileges"); 1964a78f66bSyasuoka 197821f7c56Syasuoka if (nflag) { 198821f7c56Syasuoka if (npppd_config_check(npppd_conf0) == 0) { 199821f7c56Syasuoka fprintf(stderr, "configuration OK\n"); 200821f7c56Syasuoka exit(EXIT_SUCCESS); 201821f7c56Syasuoka } 202821f7c56Syasuoka exit(EXIT_FAILURE); 203821f7c56Syasuoka } 2049a200ddfSyasuoka if (npppd_init(&s_npppd, npppd_conf0) != 0) 2059a200ddfSyasuoka exit(EXIT_FAILURE); 2064a78f66bSyasuoka 2074a78f66bSyasuoka if ((pw = getpwnam(NPPPD_USER)) == NULL) 2089a200ddfSyasuoka err(EXIT_FAILURE, "gwpwnam"); 2094a78f66bSyasuoka if (chroot(pw->pw_dir) == -1) 2109a200ddfSyasuoka err(EXIT_FAILURE, "chroot"); 2114a78f66bSyasuoka if (chdir("/") == -1) 2129a200ddfSyasuoka err(EXIT_FAILURE, "chdir(\"/\")"); 2134a78f66bSyasuoka if (setgroups(1, &pw->pw_gid) || 2144a78f66bSyasuoka setresgid(pw->pw_gid, pw->pw_gid, pw->pw_gid) || 2154a78f66bSyasuoka setresuid(pw->pw_uid, pw->pw_uid, pw->pw_uid)) 2169a200ddfSyasuoka err(EXIT_FAILURE, "cannot drop privileges"); 2174a78f66bSyasuoka /* privileges is dropped */ 2184a78f66bSyasuoka 2190fbf3537Syasuoka npppd_start(&s_npppd); 2209a200ddfSyasuoka stop_by_error = s_npppd.stop_by_error; 2210fbf3537Syasuoka npppd_fini(&s_npppd); 2224a78f66bSyasuoka privsep_fini(); 2230fbf3537Syasuoka log_printf(LOG_NOTICE, "Terminate npppd."); 2240fbf3537Syasuoka 2259a200ddfSyasuoka exit((!stop_by_error)? EXIT_SUCCESS : EXIT_FAILURE); 2260fbf3537Syasuoka } 2270fbf3537Syasuoka 2280fbf3537Syasuoka static void 2290fbf3537Syasuoka usage() 2300fbf3537Syasuoka { 2310472b88dSjmc fprintf(stderr, "usage: npppd [-dhn] [-f config_file]\n"); 2320fbf3537Syasuoka } 2330fbf3537Syasuoka 234f0a4e295Syasuoka /** Returns the singleton npppd instance */ 2350fbf3537Syasuoka npppd * 2360fbf3537Syasuoka npppd_get_npppd() 2370fbf3537Syasuoka { 2380fbf3537Syasuoka return &s_npppd; 2390fbf3537Syasuoka } 2400fbf3537Syasuoka 2410fbf3537Syasuoka /*********************************************************************** 242f0a4e295Syasuoka * Operations to npppd itself (initialize/finalize/start/stop) 2430fbf3537Syasuoka ***********************************************************************/ 244f0a4e295Syasuoka /** Initialize the npppd */ 2450fbf3537Syasuoka int 2460fbf3537Syasuoka npppd_init(npppd *_this, const char *config_file) 2470fbf3537Syasuoka { 2480fbf3537Syasuoka int i, status = -1; 2490fbf3537Syasuoka const char *pidpath0; 2500fbf3537Syasuoka FILE *pidfp = NULL; 2510fbf3537Syasuoka 2520fbf3537Syasuoka memset(_this, 0, sizeof(npppd)); 253cd8e09b9Sdlg #ifndef NO_ROUTE_FOR_POOLED_ADDRESS 2540fbf3537Syasuoka loop.s_addr = htonl(INADDR_LOOPBACK); 255cd8e09b9Sdlg #endif 2560fbf3537Syasuoka 2570fbf3537Syasuoka NPPPD_ASSERT(config_file != NULL); 2580fbf3537Syasuoka 2590fbf3537Syasuoka pidpath0 = NULL; 2600fbf3537Syasuoka _this->pid = getpid(); 2610fbf3537Syasuoka slist_init(&_this->realms); 262821f7c56Syasuoka npppd_conf_init(&_this->conf); 2630fbf3537Syasuoka 2640fbf3537Syasuoka log_printf(LOG_NOTICE, "Starting npppd pid=%u version=%s", 2650fbf3537Syasuoka _this->pid, VERSION); 2660fbf3537Syasuoka #if defined(BUILD_DATE) && defined(BUILD_TIME) 2670fbf3537Syasuoka log_printf(LOG_INFO, "Build %s %s ", BUILD_DATE, BUILD_TIME); 2680fbf3537Syasuoka #endif 2690fbf3537Syasuoka if (get_nanotime() == INT64_MIN) { 2700fbf3537Syasuoka log_printf(LOG_ERR, "get_nanotime() failed: %m"); 2710fbf3537Syasuoka return 1; 2720fbf3537Syasuoka } 2730fbf3537Syasuoka 2740fbf3537Syasuoka if (realpath(config_file, _this->config_file) == NULL) { 2750fbf3537Syasuoka log_printf(LOG_ERR, "realpath(%s,) failed in %s(): %m", 2760fbf3537Syasuoka config_file, __func__); 2770fbf3537Syasuoka return 1; 2780fbf3537Syasuoka } 279f0a4e295Syasuoka /* we assume 4.4 compatible realpath(). See realpath(3) on BSD. */ 2800fbf3537Syasuoka NPPPD_ASSERT(_this->config_file[0] == '/'); 2810fbf3537Syasuoka 282c2307f15Syasuoka _this->boot_id = arc4random(); 2838daf7599Syasuoka 28406adecbeSyasuoka #ifdef USE_NPPPD_L2TP 28506adecbeSyasuoka if (l2tpd_init(&_this->l2tpd) != 0) 28606adecbeSyasuoka return (-1); 28706adecbeSyasuoka #endif 28806adecbeSyasuoka #ifdef USE_NPPPD_PPTP 28906adecbeSyasuoka if (pptpd_init(&_this->pptpd) != 0) 29006adecbeSyasuoka return (-1); 29106adecbeSyasuoka #endif 29206adecbeSyasuoka #ifdef USE_NPPPD_PPPOE 29306adecbeSyasuoka if (pppoed_init(&_this->pppoed) != 0) 29406adecbeSyasuoka return (-1); 29506adecbeSyasuoka #endif 296f0a4e295Syasuoka /* load configuration */ 2970fbf3537Syasuoka if ((status = npppd_reload_config(_this)) != 0) 2980fbf3537Syasuoka return status; 2990fbf3537Syasuoka 3000fbf3537Syasuoka if ((_this->map_user_ppp = hash_create( 3010fbf3537Syasuoka (int (*) (const void *, const void *))strcmp, str_hash, 3020fbf3537Syasuoka NPPPD_USER_HASH_SIZ)) == NULL) { 3030fbf3537Syasuoka log_printf(LOG_ERR, "hash_create() failed in %s(): %m", 3040fbf3537Syasuoka __func__); 3050fbf3537Syasuoka return -1; 3060fbf3537Syasuoka } 3070fbf3537Syasuoka 3080fbf3537Syasuoka if (npppd_ifaces_load_config(_this) != 0) { 3090fbf3537Syasuoka return -1; 3100fbf3537Syasuoka } 3110fbf3537Syasuoka 3120fbf3537Syasuoka pidpath0 = DEFAULT_NPPPD_PIDFILE; 3130fbf3537Syasuoka 314f0a4e295Syasuoka /* initialize event(3) */ 3150fbf3537Syasuoka event_init(); 31634682664Syasuoka _this->ctl_sock.cs_name = NPPPD_SOCKET; 31734682664Syasuoka _this->ctl_sock.cs_ctx = _this; 31834682664Syasuoka if (control_init(&_this->ctl_sock) == -1) { 31934682664Syasuoka log_printf(LOG_ERR, "control_init() failed %s(): %m", 32034682664Syasuoka __func__); 32134682664Syasuoka return (-1); 32234682664Syasuoka } 32334682664Syasuoka if (control_listen(&_this->ctl_sock) == -1) { 32434682664Syasuoka log_printf(LOG_ERR, "control_listen() failed %s(): %m", 32534682664Syasuoka __func__); 32634682664Syasuoka return (-1); 32734682664Syasuoka } 32859408346Syasuoka accept_init(); 32959408346Syasuoka 330f0a4e295Syasuoka /* ignore signals */ 3310fbf3537Syasuoka signal(SIGPIPE, SIG_IGN); 3320fbf3537Syasuoka signal(SIGURG, SIG_IGN); 333f0a4e295Syasuoka 334f0a4e295Syasuoka /* set signal handlers */ 3350fbf3537Syasuoka signal_set(&_this->ev_sigterm, SIGTERM, npppd_on_sigterm, _this); 3360fbf3537Syasuoka signal_set(&_this->ev_sigint, SIGINT, npppd_on_sigint, _this); 3370fbf3537Syasuoka signal_set(&_this->ev_sighup, SIGHUP, npppd_on_sighup, _this); 3385fefcc09Syasuoka signal_set(&_this->ev_sigchld, SIGCHLD, npppd_on_sigchld, _this); 3390fbf3537Syasuoka signal_add(&_this->ev_sigterm, NULL); 3400fbf3537Syasuoka signal_add(&_this->ev_sigint, NULL); 3410fbf3537Syasuoka signal_add(&_this->ev_sighup, NULL); 3425fefcc09Syasuoka signal_add(&_this->ev_sigchld, NULL); 3430fbf3537Syasuoka 3440fbf3537Syasuoka evtimer_set(&_this->ev_timer, npppd_timer, _this); 3450fbf3537Syasuoka 346f0a4e295Syasuoka /* start tun(4) or pppac(4) */ 3470fbf3537Syasuoka status = 0; 3480fbf3537Syasuoka for (i = 0; i < countof(_this->iface); i++) { 3490fbf3537Syasuoka if (_this->iface[i].initialized != 0) 3500fbf3537Syasuoka status |= npppd_iface_start(&_this->iface[i]); 3510fbf3537Syasuoka } 3520fbf3537Syasuoka if (status != 0) 3530fbf3537Syasuoka return -1; 3540fbf3537Syasuoka 3550fbf3537Syasuoka /* 356f0a4e295Syasuoka * If the npppd can start(open) interfaces successfully, it can 357f0a4e295Syasuoka * act as only one npppd process on the system and overwrite the pid 358f0a4e295Syasuoka * file. 3590fbf3537Syasuoka */ 3600fbf3537Syasuoka if ((pidfp = fopen(pidpath0, "w+")) == NULL) { 3610fbf3537Syasuoka log_printf(LOG_ERR, "fopen(%s,w+) failed in %s(): %m", 3620fbf3537Syasuoka pidpath0, __func__); 3630fbf3537Syasuoka return -1; 3640fbf3537Syasuoka } 3650fbf3537Syasuoka strlcpy(_this->pidpath, pidpath0, sizeof(_this->pidpath)); 3660fbf3537Syasuoka fprintf(pidfp, "%u\n", _this->pid); 3670fbf3537Syasuoka fclose(pidfp); 3680fbf3537Syasuoka pidfp = NULL; 3690fbf3537Syasuoka #ifdef USE_NPPPD_ARP 3700fbf3537Syasuoka arp_set_strictintfnetwork(npppd_config_str_equali(_this, "arpd.strictintfnetwork", "true", ARPD_STRICTINTFNETWORK_DEFAULT)); 3710fbf3537Syasuoka if (npppd_config_str_equali(_this, "arpd.enabled", "true", ARPD_DEFAULT) == 1) 3720fbf3537Syasuoka arp_sock_init(); 3730fbf3537Syasuoka #endif 374821f7c56Syasuoka if ((status = npppd_modules_reload(_this)) != 0) 375821f7c56Syasuoka return status; 376821f7c56Syasuoka 377821f7c56Syasuoka npppd_update_pool_reference(_this); 378821f7c56Syasuoka 379821f7c56Syasuoka return 0; 3800fbf3537Syasuoka } 3810fbf3537Syasuoka 382f0a4e295Syasuoka /** start the npppd */ 3830fbf3537Syasuoka void 3840fbf3537Syasuoka npppd_start(npppd *_this) 3850fbf3537Syasuoka { 3860fbf3537Syasuoka int rval = 0; 3870fbf3537Syasuoka 3880fbf3537Syasuoka npppd_reset_timer(_this); 3890fbf3537Syasuoka while ((event_loop(EVLOOP_ONCE)) == 0) { 3900fbf3537Syasuoka if (_this->finalized != 0) 3910fbf3537Syasuoka break; 3920fbf3537Syasuoka } 3930fbf3537Syasuoka if (rval != 0) 3940fbf3537Syasuoka log_printf(LOG_CRIT, "event_loop() failed: %m"); 3950fbf3537Syasuoka } 3960fbf3537Syasuoka 397f0a4e295Syasuoka /** stop the npppd */ 3980fbf3537Syasuoka void 3990fbf3537Syasuoka npppd_stop(npppd *_this) 4000fbf3537Syasuoka { 4010fbf3537Syasuoka int i; 4020fbf3537Syasuoka #ifdef USE_NPPPD_L2TP 4030fbf3537Syasuoka l2tpd_stop(&_this->l2tpd); 4040fbf3537Syasuoka #endif 4050fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 4060fbf3537Syasuoka pptpd_stop(&_this->pptpd); 4070fbf3537Syasuoka #endif 4080fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 4090fbf3537Syasuoka pppoed_stop(&_this->pppoed); 4100fbf3537Syasuoka #endif 4110fbf3537Syasuoka #ifdef USE_NPPPD_ARP 4120fbf3537Syasuoka arp_sock_fini(); 4130fbf3537Syasuoka #endif 41434682664Syasuoka close(_this->ctl_sock.cs_fd); 41534682664Syasuoka control_cleanup(&_this->ctl_sock); 41634682664Syasuoka 4170fbf3537Syasuoka for (i = countof(_this->iface) - 1; i >= 0; i--) { 4180fbf3537Syasuoka if (_this->iface[i].initialized != 0) 4190fbf3537Syasuoka npppd_iface_stop(&_this->iface[i]); 4200fbf3537Syasuoka } 4210fbf3537Syasuoka npppd_set_radish(_this, NULL); 4220fbf3537Syasuoka 4230fbf3537Syasuoka _this->finalizing = 1; 4240fbf3537Syasuoka npppd_reset_timer(_this); 4250fbf3537Syasuoka } 4260fbf3537Syasuoka 4270fbf3537Syasuoka static void 4280fbf3537Syasuoka npppd_stop_really(npppd *_this) 4290fbf3537Syasuoka { 4300fbf3537Syasuoka int i; 4310fbf3537Syasuoka #if defined(USE_NPPPD_L2TP) || defined(USE_NPPPD_PPTP) 4320fbf3537Syasuoka int wait_again; 4330fbf3537Syasuoka 4340fbf3537Syasuoka wait_again = 0; 4350fbf3537Syasuoka 4360fbf3537Syasuoka #ifdef USE_NPPPD_L2TP 4370fbf3537Syasuoka if (!l2tpd_is_stopped(&_this->l2tpd)) 4380fbf3537Syasuoka wait_again |= 1; 4390fbf3537Syasuoka #endif 4400fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 4410fbf3537Syasuoka if (!pptpd_is_stopped(&_this->pptpd)) 4420fbf3537Syasuoka wait_again |= 1; 4430fbf3537Syasuoka #endif 4440fbf3537Syasuoka if (wait_again != 0) { 4450fbf3537Syasuoka npppd_reset_timer(_this); 4460fbf3537Syasuoka return; 4470fbf3537Syasuoka } 4480fbf3537Syasuoka #endif 4490fbf3537Syasuoka for (i = countof(_this->iface) - 1; i >= 0; i--) { 4500fbf3537Syasuoka npppd_iface_fini(&_this->iface[i]); 4510fbf3537Syasuoka } 4520fbf3537Syasuoka _this->finalized = 1; 4530fbf3537Syasuoka } 4540fbf3537Syasuoka 455f0a4e295Syasuoka /** finalize the npppd */ 4560fbf3537Syasuoka void 4570fbf3537Syasuoka npppd_fini(npppd *_this) 4580fbf3537Syasuoka { 4590fbf3537Syasuoka int i; 4600fbf3537Syasuoka npppd_auth_base *auth_base; 4610fbf3537Syasuoka 4620fbf3537Syasuoka #ifdef USE_NPPPD_L2TP 4630fbf3537Syasuoka l2tpd_uninit(&_this->l2tpd); 4640fbf3537Syasuoka #endif 4650fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 4660fbf3537Syasuoka pptpd_uninit(&_this->pptpd); 4670fbf3537Syasuoka #endif 4680fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 4690fbf3537Syasuoka pppoed_uninit(&_this->pppoed); 4700fbf3537Syasuoka #endif 4710fbf3537Syasuoka for (slist_itr_first(&_this->realms); 4720fbf3537Syasuoka slist_itr_has_next(&_this->realms);) { 4730fbf3537Syasuoka auth_base = slist_itr_next(&_this->realms); 4740fbf3537Syasuoka npppd_auth_destroy(auth_base); 4750fbf3537Syasuoka } 4760fbf3537Syasuoka for (i = countof(_this->iface) - 1; i >= 0; i--) { 4770fbf3537Syasuoka if (_this->iface[i].initialized != 0) 4780fbf3537Syasuoka npppd_iface_fini(&_this->iface[i]); 4790fbf3537Syasuoka } 4800fbf3537Syasuoka 4810fbf3537Syasuoka for (i = countof(_this->pool) - 1; i >= 0; i--) { 4820fbf3537Syasuoka if (_this->pool[i].initialized != 0) 4830fbf3537Syasuoka npppd_pool_uninit(&_this->pool[i]); 4840fbf3537Syasuoka } 4850fbf3537Syasuoka 4860fbf3537Syasuoka signal_del(&_this->ev_sigterm); 4870fbf3537Syasuoka signal_del(&_this->ev_sigint); 4880fbf3537Syasuoka signal_del(&_this->ev_sighup); 4895fefcc09Syasuoka signal_del(&_this->ev_sigchld); 4900fbf3537Syasuoka 491821f7c56Syasuoka npppd_conf_fini(&_this->conf); 4920fbf3537Syasuoka 4930fbf3537Syasuoka slist_fini(&_this->realms); 4940fbf3537Syasuoka 4950fbf3537Syasuoka if (_this->map_user_ppp != NULL) 4960fbf3537Syasuoka hash_free(_this->map_user_ppp); 4970fbf3537Syasuoka } 4980fbf3537Syasuoka 4990fbf3537Syasuoka /*********************************************************************** 500f0a4e295Syasuoka * Timer related functions 5010fbf3537Syasuoka ***********************************************************************/ 5020fbf3537Syasuoka static void 5030fbf3537Syasuoka npppd_reset_timer(npppd *_this) 5040fbf3537Syasuoka { 5050fbf3537Syasuoka struct timeval tv; 5060fbf3537Syasuoka 5070fbf3537Syasuoka if (_this->finalizing != 0) { 508f0a4e295Syasuoka /* we can use the timer exclusively on finalizing */ 5090fbf3537Syasuoka tv.tv_usec = 500000; 5100fbf3537Syasuoka tv.tv_sec = 0; 5110fbf3537Syasuoka evtimer_add(&_this->ev_timer, &tv); 5120fbf3537Syasuoka } else { 5130fbf3537Syasuoka tv.tv_usec = 0; 5140fbf3537Syasuoka tv.tv_sec = NPPPD_TIMER_TICK_IVAL; 5150fbf3537Syasuoka evtimer_add(&_this->ev_timer, &tv); 5160fbf3537Syasuoka } 5170fbf3537Syasuoka } 5180fbf3537Syasuoka 5190fbf3537Syasuoka static void 5200fbf3537Syasuoka npppd_timer(int fd, short evtype, void *ctx) 5210fbf3537Syasuoka { 5220fbf3537Syasuoka npppd *_this; 5230fbf3537Syasuoka 5240fbf3537Syasuoka _this = ctx; 5250fbf3537Syasuoka if (_this->finalizing != 0) { 526f0a4e295Syasuoka npppd_stop_really(_this); /* The timer has been reset */ 527f0a4e295Syasuoka return; /* we can use the timer exclusively on finalizing */ 5280fbf3537Syasuoka } 5290fbf3537Syasuoka _this->secs += NPPPD_TIMER_TICK_IVAL; 5300fbf3537Syasuoka if (_this->reloading_count > 0) { 5310fbf3537Syasuoka _this->reloading_count -= NPPPD_TIMER_TICK_IVAL; 5320fbf3537Syasuoka if (_this->reloading_count <= 0) { 5330fbf3537Syasuoka npppd_reload0(_this); 5340fbf3537Syasuoka _this->reloading_count = 0; 5350fbf3537Syasuoka } 5360fbf3537Syasuoka } else { 5370fbf3537Syasuoka if ((_this->secs % TIMER_TICK_RUP( 5380fbf3537Syasuoka NPPPD_AUTH_REALM_FINALIZER_INTERVAL)) == 0) 5390fbf3537Syasuoka npppd_auth_finalizer_periodic(_this); 5400fbf3537Syasuoka } 5410fbf3537Syasuoka 5420fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 5430fbf3537Syasuoka if (pppoed_need_polling(&_this->pppoed)) 5440fbf3537Syasuoka pppoed_reload_listeners(&_this->pppoed); 5450fbf3537Syasuoka #endif 5460fbf3537Syasuoka #ifdef USE_NPPPD_PIPEX 5470fbf3537Syasuoka pipex_periodic(_this); 5480fbf3537Syasuoka #endif 5490fbf3537Syasuoka 5500fbf3537Syasuoka npppd_reset_timer(_this); 5510fbf3537Syasuoka } 5520fbf3537Syasuoka 5530fbf3537Syasuoka int 5540fbf3537Syasuoka npppd_reset_routing_table(npppd *_this, int pool_only) 5550fbf3537Syasuoka { 5560fbf3537Syasuoka #ifndef NO_ROUTE_FOR_POOLED_ADDRESS 5570fbf3537Syasuoka slist rtlist0; 5580fbf3537Syasuoka 559cd8e09b9Sdlg if (_this->iface[0].using_pppx) 560cd8e09b9Sdlg return 0; 561cd8e09b9Sdlg 5620fbf3537Syasuoka slist_init(&rtlist0); 5630fbf3537Syasuoka if (rd2slist(_this->rd, &rtlist0) != 0) 5640fbf3537Syasuoka return 1; 5650fbf3537Syasuoka 5660fbf3537Syasuoka for (slist_itr_first(&rtlist0); slist_itr_has_next(&rtlist0); ) { 5670fbf3537Syasuoka struct radish *rd; 5680fbf3537Syasuoka struct sockaddr_npppd *snp; 5690fbf3537Syasuoka npppd_ppp *ppp; 5700fbf3537Syasuoka int is_first; 5710fbf3537Syasuoka 5720fbf3537Syasuoka rd = slist_itr_next(&rtlist0); 5730fbf3537Syasuoka snp = rd->rd_rtent; 5740fbf3537Syasuoka 5750fbf3537Syasuoka is_first = 1; 5760fbf3537Syasuoka for (snp = rd->rd_rtent; snp != NULL; snp = snp->snp_next) { 5770fbf3537Syasuoka switch (snp->snp_type) { 5780fbf3537Syasuoka case SNP_POOL: 5790fbf3537Syasuoka case SNP_DYN_POOL: 5800fbf3537Syasuoka if (is_first) 5810fbf3537Syasuoka in_route_add(&snp->snp_addr, 5820fbf3537Syasuoka &snp->snp_mask, &loop, 5830fbf3537Syasuoka LOOPBACK_IFNAME, RTF_BLACKHOLE, 0); 5840fbf3537Syasuoka break; 5850fbf3537Syasuoka 5860fbf3537Syasuoka case SNP_PPP: 5870fbf3537Syasuoka if (pool_only) 5880fbf3537Syasuoka break; 5890fbf3537Syasuoka ppp = snp->snp_data_ptr; 5900fbf3537Syasuoka if (ppp->ppp_framed_ip_netmask.s_addr 5910fbf3537Syasuoka == 0xffffffffL) { 5920fbf3537Syasuoka in_host_route_add(&ppp-> 5930fbf3537Syasuoka ppp_framed_ip_address, 5940fbf3537Syasuoka &ppp_iface(ppp)->ip4addr, 5950fbf3537Syasuoka ppp_iface(ppp)->ifname, 5960fbf3537Syasuoka MRU_IPMTU(ppp->peer_mru)); 5970fbf3537Syasuoka } else { 5980fbf3537Syasuoka in_route_add(&ppp-> 5990fbf3537Syasuoka ppp_framed_ip_address, 6000fbf3537Syasuoka &ppp->ppp_framed_ip_netmask, 6010fbf3537Syasuoka &ppp_iface(ppp)->ip4addr, 6020fbf3537Syasuoka ppp_iface(ppp)->ifname, 0, 6030fbf3537Syasuoka MRU_IPMTU(ppp->peer_mru)); 6040fbf3537Syasuoka } 6050fbf3537Syasuoka break; 6060fbf3537Syasuoka } 6070fbf3537Syasuoka is_first = 0; 6080fbf3537Syasuoka } 6090fbf3537Syasuoka 6100fbf3537Syasuoka } 6110fbf3537Syasuoka 6120fbf3537Syasuoka slist_fini(&rtlist0); 6130fbf3537Syasuoka #endif 6140fbf3537Syasuoka return 0; 6150fbf3537Syasuoka } 6160fbf3537Syasuoka 6170fbf3537Syasuoka /*********************************************************************** 618f0a4e295Syasuoka * Other npppd related functions. 6190fbf3537Syasuoka ***********************************************************************/ 6200fbf3537Syasuoka /** 621f0a4e295Syasuoka * Get the user's password. Return 0 on success. 6220fbf3537Syasuoka * 623f0a4e295Syasuoka * @param username Username who acquires password 624f0a4e295Syasuoka * @param password A pointer to a buffer space to store the password. 625f0a4e295Syasuoka * Use NULL when you need to know only the length of 626f0a4e295Syasuoka * the password. 627f0a4e295Syasuoka * @param plpassword A pointer to the length of the password parameter. 628f0a4e295Syasuoka * This function uses this parameter value and stores 629f0a4e295Syasuoka * the required length value pointed to by this 630f0a4e295Syasuoka * parameter. Use NULL when use don't need to know 631f0a4e295Syasuoka * the password and its length. 632f0a4e295Syasuoka * @return If the function succeeds, 0 is returned. The function returns 633f0a4e295Syasuoka * 1 if the username is unknown, returns 2 if the password buffer 634f0a4e295Syasuoka * length is not enough. It returns negative value for other 635f0a4e295Syasuoka * errors. 6360fbf3537Syasuoka */ 6370fbf3537Syasuoka int 6380fbf3537Syasuoka npppd_get_user_password(npppd *_this, npppd_ppp *ppp, 6390fbf3537Syasuoka const char *username, char *password, int *plpassword) 6400fbf3537Syasuoka { 6410fbf3537Syasuoka char buf0[MAX_USERNAME_LENGTH]; 6420fbf3537Syasuoka 6430fbf3537Syasuoka NPPPD_ASSERT(ppp->realm != NULL); 6440fbf3537Syasuoka return npppd_auth_get_user_password(ppp->realm, 6450fbf3537Syasuoka npppd_auth_username_for_auth(ppp->realm, username, buf0), password, 6460fbf3537Syasuoka plpassword); 6470fbf3537Syasuoka } 6480fbf3537Syasuoka 649f0a4e295Syasuoka /** Get the Framed-IP-Address attribute of the user */ 6500fbf3537Syasuoka struct in_addr * 6510fbf3537Syasuoka npppd_get_user_framed_ip_address(npppd *_this, npppd_ppp *ppp, 6520fbf3537Syasuoka const char *username) 6530fbf3537Syasuoka { 6540fbf3537Syasuoka 6550fbf3537Syasuoka if (ppp->peer_auth == 0) { 6560fbf3537Syasuoka ppp->realm_framed_ip_address.s_addr = 0; 6570fbf3537Syasuoka goto do_default; 6580fbf3537Syasuoka } 6590fbf3537Syasuoka NPPPD_ASSERT(ppp->realm != NULL); 6600fbf3537Syasuoka 661821f7c56Syasuoka if (ppp->realm_framed_ip_address.s_addr != 0) 6620fbf3537Syasuoka return &ppp->realm_framed_ip_address; 6630fbf3537Syasuoka 664f0a4e295Syasuoka /* assign by the authentication realm */ 6650fbf3537Syasuoka if (npppd_auth_get_framed_ip(ppp->realm, username, 6660fbf3537Syasuoka &ppp->realm_framed_ip_address, 6670fbf3537Syasuoka &ppp->realm_framed_ip_netmask) != 0) 6680fbf3537Syasuoka ppp->realm_framed_ip_address.s_addr = 0; 6690fbf3537Syasuoka 6700fbf3537Syasuoka do_default: 671f0a4e295Syasuoka /* Use USER_SELECT if the realm doesn't specify the ip address */ 6720fbf3537Syasuoka if (ppp->realm_framed_ip_address.s_addr == 0) 6730fbf3537Syasuoka ppp->realm_framed_ip_address.s_addr = INADDR_USER_SELECT; 674821f7c56Syasuoka 675821f7c56Syasuoka 6760fbf3537Syasuoka if (ppp->realm_framed_ip_address.s_addr == INADDR_USER_SELECT) { 677f0a4e295Syasuoka /* Use NAS_SELECT if USER_SELECT is not allowed by the config */ 678821f7c56Syasuoka if (!ppp_ipcp(ppp)->allow_user_select) 6790fbf3537Syasuoka ppp->realm_framed_ip_address.s_addr = INADDR_NAS_SELECT; 6800fbf3537Syasuoka } 6810fbf3537Syasuoka NPPPD_DBG((LOG_DEBUG, "%s() = %s", __func__, 6820fbf3537Syasuoka inet_ntoa(ppp->realm_framed_ip_address))); 6830fbf3537Syasuoka 6840fbf3537Syasuoka return &ppp->realm_framed_ip_address; 6850fbf3537Syasuoka } 6860fbf3537Syasuoka 6870fbf3537Syasuoka /** XXX */ 6880fbf3537Syasuoka int 6890fbf3537Syasuoka npppd_check_calling_number(npppd *_this, npppd_ppp *ppp) 6900fbf3537Syasuoka { 691821f7c56Syasuoka struct tunnconf *conf; 692821f7c56Syasuoka int lnumber, rval; 6930fbf3537Syasuoka char number[NPPPD_PHONE_NUMBER_LEN + 1]; 6940fbf3537Syasuoka 695821f7c56Syasuoka conf = ppp_get_tunnconf(ppp); 696821f7c56Syasuoka if (conf->callnum_check != 0) { 6970fbf3537Syasuoka lnumber = sizeof(number); 6980fbf3537Syasuoka if ((rval = npppd_auth_get_calling_number(ppp->realm, 699821f7c56Syasuoka ppp->username, number, &lnumber)) == 0) 7000fbf3537Syasuoka return 7010fbf3537Syasuoka (strcmp(number, ppp->calling_number) == 0)? 1 : 0; 702821f7c56Syasuoka if ((conf->callnum_check & NPPPD_CALLNUM_CHECK_STRICT) != 0) 7030fbf3537Syasuoka return 0; 7040fbf3537Syasuoka } 7050fbf3537Syasuoka 7060fbf3537Syasuoka return 1; 7070fbf3537Syasuoka } 7080fbf3537Syasuoka 7090fbf3537Syasuoka /** 710f0a4e295Syasuoka * This function finds a {@link npppd_ppp} instance that is assigned the 711f0a4e295Syasuoka * specified ip address and returns it 712f0a4e295Syasuoka * @param ipaddr IP Address(Specify in network byte order) 7130fbf3537Syasuoka */ 7140fbf3537Syasuoka npppd_ppp * 7150fbf3537Syasuoka npppd_get_ppp_by_ip(npppd *_this, struct in_addr ipaddr) 7160fbf3537Syasuoka { 7170fbf3537Syasuoka struct sockaddr_npppd *snp; 7180fbf3537Syasuoka struct radish *rdp; 719f0a4e295Syasuoka struct sockaddr_in npppd_get_ppp_by_ip_sin4; 7200fbf3537Syasuoka 721f0a4e295Syasuoka npppd_get_ppp_by_ip_sin4.sin_family = AF_INET; 722f0a4e295Syasuoka npppd_get_ppp_by_ip_sin4.sin_len = sizeof(struct sockaddr_in); 7230fbf3537Syasuoka npppd_get_ppp_by_ip_sin4.sin_addr = ipaddr; 7240fbf3537Syasuoka if (_this->rd == NULL) 725f0a4e295Syasuoka return NULL; /* no radix tree on startup */ 7260fbf3537Syasuoka if (rd_match((struct sockaddr *)&npppd_get_ppp_by_ip_sin4, _this->rd, 7270fbf3537Syasuoka &rdp)) { 7280fbf3537Syasuoka snp = rdp->rd_rtent; 7290fbf3537Syasuoka if (snp->snp_type == SNP_PPP) 7300fbf3537Syasuoka return snp->snp_data_ptr; 7310fbf3537Syasuoka } 7320fbf3537Syasuoka return NULL; 7330fbf3537Syasuoka } 7340fbf3537Syasuoka 7350fbf3537Syasuoka /** 736f0a4e295Syasuoka * This function finds {@link npppd_ppp} instances that are authenticated 737f0a4e295Syasuoka * as the specified username and returns them as a {@link slist} list. 738f0a4e295Syasuoka * @param username PPP Username. 739f0a4e295Syasuoka * @return {@link slist} that contans the {@link npppd_ppp} instances. 740f0a4e295Syasuoka * NULL may be returned if no instance has been found. 7410fbf3537Syasuoka */ 74234682664Syasuoka static slist * 7430fbf3537Syasuoka npppd_get_ppp_by_user(npppd *_this, const char *username) 7440fbf3537Syasuoka { 7450fbf3537Syasuoka hash_link *hl; 7460fbf3537Syasuoka 7470fbf3537Syasuoka if ((hl = hash_lookup(_this->map_user_ppp, username)) != NULL) 7480fbf3537Syasuoka return hl->item; 7490fbf3537Syasuoka 7500fbf3537Syasuoka return NULL; 7510fbf3537Syasuoka } 7520fbf3537Syasuoka 7530fbf3537Syasuoka /** 754f0a4e295Syasuoka * This function finds a {@link npppd_ppp} instance that matches the specified 755f0a4e295Syasuoka * ppp id and returns it. 756f0a4e295Syasuoka * @param id {@link npppd_ppp#id ppp's id} 757f0a4e295Syasuoka * @return This function returns the pointer if the instance which has 758f0a4e295Syasuoka * specified ID is found, otherwise it returns NULL. 7590fbf3537Syasuoka */ 7600fbf3537Syasuoka npppd_ppp * 761363e4d4bSyasuoka npppd_get_ppp_by_id(npppd *_this, u_int ppp_id) 7620fbf3537Syasuoka { 7630fbf3537Syasuoka slist users; 7640fbf3537Syasuoka npppd_ppp *ppp0, *ppp; 7650fbf3537Syasuoka 7660fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 7670fbf3537Syasuoka 7680fbf3537Syasuoka ppp = NULL; 7690fbf3537Syasuoka slist_init(&users); 7700fbf3537Syasuoka if (npppd_get_all_users(_this, &users) != 0) { 7710fbf3537Syasuoka log_printf(LOG_WARNING, 7720fbf3537Syasuoka "npppd_get_all_users() failed in %s()", __func__); 7730fbf3537Syasuoka } else { 774f0a4e295Syasuoka /* FIXME: This linear search eats CPU. */ 7750fbf3537Syasuoka for (slist_itr_first(&users); slist_itr_has_next(&users); ) { 7760fbf3537Syasuoka ppp0 = slist_itr_next(&users); 7770fbf3537Syasuoka if (ppp0->id == ppp_id) { 7780fbf3537Syasuoka ppp = ppp0; 7790fbf3537Syasuoka break; 7800fbf3537Syasuoka } 7810fbf3537Syasuoka } 7820fbf3537Syasuoka } 7830fbf3537Syasuoka slist_fini(&users); 7840fbf3537Syasuoka 7850fbf3537Syasuoka return ppp; 7860fbf3537Syasuoka } 7870fbf3537Syasuoka 7880fbf3537Syasuoka /** 789f0a4e295Syasuoka * Checks whether the user reaches the maximum session limit 790f0a4e295Syasuoka * (user_max_serssion). 791f0a4e295Syasuoka * @return This function returns 1(true) if the user does not reach the 792f0a4e295Syasuoka * limit, otherwise it returns 0(false). 7930fbf3537Syasuoka */ 7940fbf3537Syasuoka int 7950fbf3537Syasuoka npppd_check_user_max_session(npppd *_this, npppd_ppp *ppp) 7960fbf3537Syasuoka { 7970fbf3537Syasuoka int count; 7980fbf3537Syasuoka npppd_ppp *ppp1; 7990fbf3537Syasuoka slist *uppp; 8000fbf3537Syasuoka 801f0a4e295Syasuoka /* user_max_session == 0 means unlimit */ 802e43db91eSyasuoka if (_this->conf.user_max_session == 0) 8030fbf3537Syasuoka return 1; 8040fbf3537Syasuoka 8050fbf3537Syasuoka count = 0; 8060fbf3537Syasuoka if ((uppp = npppd_get_ppp_by_user(_this, ppp->username)) != NULL) { 8070fbf3537Syasuoka for (slist_itr_first(uppp); slist_itr_has_next(uppp); ) { 8080fbf3537Syasuoka ppp1 = slist_itr_next(uppp); 8090fbf3537Syasuoka if (strcmp(ppp_iface(ppp)->ifname, 8100fbf3537Syasuoka ppp_iface(ppp1)->ifname) == 0) 8110fbf3537Syasuoka count++; 8120fbf3537Syasuoka } 8130fbf3537Syasuoka } 8140fbf3537Syasuoka 815e43db91eSyasuoka return (count < _this->conf.user_max_session)? 1 : 0; 8160fbf3537Syasuoka } 8170fbf3537Syasuoka 8180fbf3537Syasuoka /*********************************************************************** 819f0a4e295Syasuoka * Network I/O ralated functions. 8200fbf3537Syasuoka ***********************************************************************/ 8210fbf3537Syasuoka /** 822f0a4e295Syasuoka * Call this function to output packets to the network(tun). This function 823f0a4e295Syasuoka * currently assumes the packet is a IPv4 datagram. 8240fbf3537Syasuoka */ 8250fbf3537Syasuoka void 8260fbf3537Syasuoka npppd_network_output(npppd *_this, npppd_ppp *ppp, int proto, u_char *pktp, 8270fbf3537Syasuoka int lpktp) 8280fbf3537Syasuoka { 8290fbf3537Syasuoka struct ip *pip; 8300fbf3537Syasuoka int lbuf; 831f0a4e295Syasuoka u_char buf[256]; /* enough size for TCP/IP header */ 8320fbf3537Syasuoka 8330fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 8340fbf3537Syasuoka 8350fbf3537Syasuoka if (!ppp_ip_assigned(ppp)) 8360fbf3537Syasuoka return; 8370fbf3537Syasuoka 8380fbf3537Syasuoka if (lpktp < sizeof(struct ip)) { 8390fbf3537Syasuoka ppp_log(ppp, LOG_DEBUG, "Received IP packet is too small"); 8400fbf3537Syasuoka return; 8410fbf3537Syasuoka } 8420fbf3537Syasuoka lbuf = MIN(lpktp, sizeof(buf)); 8430fbf3537Syasuoka if (!ALIGNED_POINTER(pktp, struct ip)) { 8440fbf3537Syasuoka memcpy(buf, pktp, lbuf); 8450fbf3537Syasuoka pip = (struct ip *)buf; 8460fbf3537Syasuoka } else { 8470fbf3537Syasuoka pip = (struct ip *)pktp; 8480fbf3537Syasuoka } 8490fbf3537Syasuoka 8503b5b2d97Syasuoka if (ppp->ingress_filter != 0 && 8513b5b2d97Syasuoka (pip->ip_src.s_addr & ppp->ppp_framed_ip_netmask.s_addr) 8523b5b2d97Syasuoka != (ppp->ppp_framed_ip_address.s_addr & 8530fbf3537Syasuoka ppp->ppp_framed_ip_netmask.s_addr)) { 8540fbf3537Syasuoka char logbuf[80]; 8550fbf3537Syasuoka strlcpy(logbuf, inet_ntoa(pip->ip_dst), sizeof(logbuf)); 8560fbf3537Syasuoka ppp_log(ppp, LOG_INFO, 8570fbf3537Syasuoka "Drop packet by ingress filter. %s => %s", 8580fbf3537Syasuoka inet_ntoa(pip->ip_src), logbuf); 8590fbf3537Syasuoka 8600fbf3537Syasuoka return; 8610fbf3537Syasuoka } 8620fbf3537Syasuoka if (ppp->timeout_sec > 0 && !ip_is_idle_packet(pip, lbuf)) 8630fbf3537Syasuoka ppp_reset_idle_timeout(ppp); 8640fbf3537Syasuoka 8650fbf3537Syasuoka #ifndef NO_ADJUST_MSS 8660fbf3537Syasuoka if (ppp->adjust_mss) { 8670fbf3537Syasuoka if (lpktp == lbuf) { 8680fbf3537Syasuoka /* 869f0a4e295Syasuoka * We can assume the packet length is less than 870f0a4e295Syasuoka * sizeof(buf). 8710fbf3537Syasuoka */ 8720fbf3537Syasuoka if (!ALIGNED_POINTER(pktp, struct ip)) 8730fbf3537Syasuoka pktp = buf; 8740fbf3537Syasuoka adjust_tcp_mss(pktp, lpktp, MRU_IPMTU(ppp->peer_mru)); 8750fbf3537Syasuoka } 8760fbf3537Syasuoka } 8770fbf3537Syasuoka #endif 8780fbf3537Syasuoka npppd_iface_write(ppp_iface(ppp), proto, pktp, lpktp); 8790fbf3537Syasuoka } 8800fbf3537Syasuoka 8810fbf3537Syasuoka #ifdef USE_NPPPD_PIPEX 882f0a4e295Syasuoka /*********************************************************************** 883f0a4e295Syasuoka * PIPEX related functions 884f0a4e295Syasuoka ***********************************************************************/ 8850fbf3537Syasuoka static void 8860fbf3537Syasuoka pipex_setup_common(npppd_ppp *ppp, struct pipex_session_req *req) 8870fbf3537Syasuoka { 8880fbf3537Syasuoka memset(req, 0, sizeof(*req)); 8890fbf3537Syasuoka if (psm_opt_is_accepted(&ppp->lcp, acfc)) 8900fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_ACFC_ENABLED; 8910fbf3537Syasuoka if (psm_peer_opt_is_accepted(&ppp->lcp, acfc)) 8920fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_ACFC_ACCEPTED; 8930fbf3537Syasuoka 8940fbf3537Syasuoka if (psm_peer_opt_is_accepted(&ppp->lcp, pfc)) 8950fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_PFC_ACCEPTED; 8960fbf3537Syasuoka if (psm_opt_is_accepted(&ppp->lcp, pfc)) 8970fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_PFC_ENABLED; 8980fbf3537Syasuoka 8990fbf3537Syasuoka if (ppp->has_acf != 0) 9000fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_HAS_ACF; 9010fbf3537Syasuoka 9020fbf3537Syasuoka if (ppp->adjust_mss != 0) 9030fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_ADJUST_TCPMSS; 9043b5b2d97Syasuoka if (ppp->ingress_filter != 0) 9053b5b2d97Syasuoka req->pr_ppp_flags |= PIPEX_PPP_INGRESS_FILTER; 9060fbf3537Syasuoka 907cd8e09b9Sdlg req->pr_ip_srcaddr = ppp->pppd->iface[0].ip4addr; 9080fbf3537Syasuoka req->pr_ip_address = ppp->ppp_framed_ip_address; 9090fbf3537Syasuoka req->pr_ip_netmask = ppp->ppp_framed_ip_netmask; 9100fbf3537Syasuoka req->pr_peer_mru = ppp->peer_mru; 9110fbf3537Syasuoka req->pr_ppp_id = ppp->id; 9120fbf3537Syasuoka 9130fbf3537Syasuoka req->pr_timeout_sec = ppp->timeout_sec; 9140fbf3537Syasuoka 9150fbf3537Syasuoka #ifdef USE_NPPPD_MPPE 9160fbf3537Syasuoka req->pr_ccp_id = ppp->ccp.fsm.id; 917de0a2dd6Syasuoka if (ppp->mppe.send.keybits > 0) { 9180fbf3537Syasuoka memcpy(req->pr_mppe_send.master_key, 919de0a2dd6Syasuoka ppp->mppe.send.master_key, 920de0a2dd6Syasuoka sizeof(req->pr_mppe_send.master_key)); 9210fbf3537Syasuoka req->pr_mppe_send.stateless = ppp->mppe.send.stateless; 9220fbf3537Syasuoka req->pr_mppe_send.keylenbits = ppp->mppe.send.keybits; 923de0a2dd6Syasuoka req->pr_ppp_flags |= PIPEX_PPP_MPPE_ENABLED; 924de0a2dd6Syasuoka } 925de0a2dd6Syasuoka if (ppp->mppe.recv.keybits > 0) { 9260fbf3537Syasuoka memcpy(req->pr_mppe_recv.master_key, 927de0a2dd6Syasuoka ppp->mppe.recv.master_key, 928de0a2dd6Syasuoka sizeof(req->pr_mppe_recv.master_key)); 9290fbf3537Syasuoka req->pr_mppe_recv.stateless = ppp->mppe.recv.stateless; 9300fbf3537Syasuoka req->pr_mppe_recv.keylenbits = ppp->mppe.recv.keybits; 9310fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_MPPE_ACCEPTED; 9320fbf3537Syasuoka } 9330fbf3537Syasuoka if (ppp->mppe.required) 9340fbf3537Syasuoka req->pr_ppp_flags |= PIPEX_PPP_MPPE_REQUIRED; 9350fbf3537Syasuoka #endif /* USE_NPPPD_MPPE */ 9360fbf3537Syasuoka } 9370fbf3537Syasuoka 938f0a4e295Syasuoka /** Enable PIPEX of the {@link npppd_ppp ppp} */ 9390fbf3537Syasuoka int 9400fbf3537Syasuoka npppd_ppp_pipex_enable(npppd *_this, npppd_ppp *ppp) 9410fbf3537Syasuoka { 9420fbf3537Syasuoka struct pipex_session_req req; 9430fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 9440fbf3537Syasuoka pppoe_session *pppoe; 9450fbf3537Syasuoka #endif 9460fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 9470fbf3537Syasuoka pptp_call *call; 9480fbf3537Syasuoka #endif 949886d2b78Syasuoka #ifdef USE_NPPPD_L2TP 950886d2b78Syasuoka l2tp_call *l2tp; 951886d2b78Syasuoka l2tp_ctrl *l2tpctrl; 952886d2b78Syasuoka #endif 9530fbf3537Syasuoka int error; 9540fbf3537Syasuoka 9550fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 9560fbf3537Syasuoka NPPPD_ASSERT(ppp->phy_context != NULL); 9570fbf3537Syasuoka NPPPD_ASSERT(ppp->use_pipex != 0); 9580fbf3537Syasuoka 9590fbf3537Syasuoka pipex_setup_common(ppp, &req); 9600fbf3537Syasuoka 9610fbf3537Syasuoka switch (ppp->tunnel_type) { 9620fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 963821f7c56Syasuoka case NPPPD_TUNNEL_PPPOE: 964886d2b78Syasuoka { 965886d2b78Syasuoka struct sockaddr *sa; 966886d2b78Syasuoka struct ether_header *eh; 9670fbf3537Syasuoka pppoe = (pppoe_session *)ppp->phy_context; 9680fbf3537Syasuoka 969f0a4e295Syasuoka /* PPPoE specific informations */ 9700fbf3537Syasuoka req.pr_protocol = PIPEX_PROTO_PPPOE; 9710fbf3537Syasuoka req.pr_session_id = pppoe->session_id; 9720fbf3537Syasuoka req.pr_peer_session_id = 0; 9730fbf3537Syasuoka strlcpy(req.pr_proto.pppoe.over_ifname, 9740fbf3537Syasuoka pppoe_session_listen_ifname(pppoe), 9750fbf3537Syasuoka sizeof(req.pr_proto.pppoe.over_ifname)); 976886d2b78Syasuoka 977bdfe8fd0Syasuoka sa = (struct sockaddr *)&req.pr_peer_address; 978886d2b78Syasuoka sa->sa_family = AF_UNSPEC; 979886d2b78Syasuoka sa->sa_len = sizeof(struct sockaddr); 980886d2b78Syasuoka 981886d2b78Syasuoka eh = (struct ether_header *)sa->sa_data; 982886d2b78Syasuoka eh->ether_type = htons(ETHERTYPE_PPPOE); 983886d2b78Syasuoka memcpy(eh->ether_dhost, pppoe->ether_addr, ETHER_ADDR_LEN); 984886d2b78Syasuoka memset(eh->ether_shost, 0, ETHER_ADDR_LEN); 9850fbf3537Syasuoka 9860fbf3537Syasuoka break; 987886d2b78Syasuoka } 9880fbf3537Syasuoka #endif 9890fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 990821f7c56Syasuoka case NPPPD_TUNNEL_PPTP: 9910fbf3537Syasuoka call = (pptp_call *)ppp->phy_context; 9920fbf3537Syasuoka 993f0a4e295Syasuoka /* PPTP specific informations */ 9940fbf3537Syasuoka req.pr_session_id = call->id; 9950fbf3537Syasuoka req.pr_protocol = PIPEX_PROTO_PPTP; 9960fbf3537Syasuoka 9970fbf3537Syasuoka req.pr_peer_session_id = call->peers_call_id; 9980fbf3537Syasuoka req.pr_proto.pptp.snd_nxt = call->snd_nxt; 9990fbf3537Syasuoka req.pr_proto.pptp.snd_una = call->snd_una; 10000fbf3537Syasuoka req.pr_proto.pptp.rcv_nxt = call->rcv_nxt; 10010fbf3537Syasuoka req.pr_proto.pptp.rcv_acked = call->rcv_acked; 10020fbf3537Syasuoka req.pr_proto.pptp.winsz = call->winsz; 10030fbf3537Syasuoka req.pr_proto.pptp.maxwinsz = call->maxwinsz; 10040fbf3537Syasuoka req.pr_proto.pptp.peer_maxwinsz = call->peers_maxwinsz; 10050fbf3537Syasuoka 10060fbf3537Syasuoka NPPPD_ASSERT(call->ctrl->peer.ss_family == AF_INET); 10070fbf3537Syasuoka NPPPD_ASSERT(call->ctrl->our.ss_family == AF_INET); 1008886d2b78Syasuoka 1009bdfe8fd0Syasuoka memcpy(&req.pr_peer_address, &call->ctrl->peer, 1010886d2b78Syasuoka call->ctrl->peer.ss_len); 1011bdfe8fd0Syasuoka memcpy(&req.pr_local_address, &call->ctrl->our, 1012886d2b78Syasuoka call->ctrl->our.ss_len); 1013886d2b78Syasuoka break; 1014886d2b78Syasuoka #endif 1015886d2b78Syasuoka #ifdef USE_NPPPD_L2TP 1016821f7c56Syasuoka case NPPPD_TUNNEL_L2TP: 1017886d2b78Syasuoka l2tp = (l2tp_call *)ppp->phy_context; 1018886d2b78Syasuoka l2tpctrl = l2tp->ctrl; 1019886d2b78Syasuoka 1020886d2b78Syasuoka /* L2TPv2 specific context */ 1021886d2b78Syasuoka /* Session KEYS */ 1022886d2b78Syasuoka req.pr_protocol = PIPEX_PROTO_L2TP; 1023886d2b78Syasuoka req.pr_proto.l2tp.tunnel_id = l2tpctrl->tunnel_id; 1024886d2b78Syasuoka req.pr_proto.l2tp.peer_tunnel_id = l2tpctrl->peer_tunnel_id; 1025886d2b78Syasuoka req.pr_session_id = l2tp->session_id; 1026886d2b78Syasuoka req.pr_peer_session_id = l2tp->peer_session_id; 1027886d2b78Syasuoka 1028886d2b78Syasuoka if (l2tpctrl->data_use_seq) 1029886d2b78Syasuoka req.pr_proto.l2tp.option_flags |= 1030886d2b78Syasuoka PIPEX_L2TP_USE_SEQUENCING; 1031886d2b78Syasuoka 1032886d2b78Syasuoka /* transmission control contexts */ 1033886d2b78Syasuoka req.pr_proto.l2tp.ns_nxt = l2tp->snd_nxt; 1034886d2b78Syasuoka req.pr_proto.l2tp.nr_nxt = l2tp->rcv_nxt; 1035886d2b78Syasuoka 1036bdfe8fd0Syasuoka memcpy(&req.pr_peer_address, &l2tpctrl->peer, 1037886d2b78Syasuoka l2tpctrl->peer.ss_len); 1038bdfe8fd0Syasuoka memcpy(&req.pr_local_address, &l2tpctrl->sock, 1039886d2b78Syasuoka l2tpctrl->sock.ss_len); 1040a5018c90Syasuoka #ifdef USE_SA_COOKIE 1041a5018c90Syasuoka if (l2tpctrl->sa_cookie != NULL) { 1042a5018c90Syasuoka req.pr_proto.l2tp.ipsecflowinfo = 1043a5018c90Syasuoka ((struct in_ipsec_sa_cookie *)l2tpctrl->sa_cookie) 1044a5018c90Syasuoka ->ipsecflow; 1045a5018c90Syasuoka } 1046886d2b78Syasuoka #endif 10470fbf3537Syasuoka break; 10480fbf3537Syasuoka #endif 10490fbf3537Syasuoka default: 10500fbf3537Syasuoka return 1; 10510fbf3537Syasuoka } 10520fbf3537Syasuoka 10530fbf3537Syasuoka if ((error = ioctl(_this->iface[ppp->ifidx].devf, PIPEXASESSION, &req)) 10540fbf3537Syasuoka != 0) { 10550fbf3537Syasuoka if (errno == ENXIO) /* pipex is disabled on runtime */ 10560fbf3537Syasuoka error = 0; 10570fbf3537Syasuoka ppp->pipex_enabled = 0; 10580fbf3537Syasuoka return error; 10590fbf3537Syasuoka } 10600fbf3537Syasuoka 1061cd8e09b9Sdlg if (_this->iface[ppp->ifidx].using_pppx) { 1062cd8e09b9Sdlg struct pipex_session_descr_req descr_req; 1063cd8e09b9Sdlg 1064cd8e09b9Sdlg descr_req.pdr_protocol = req.pr_protocol; 1065cd8e09b9Sdlg descr_req.pdr_session_id = req.pr_session_id; 1066cd8e09b9Sdlg memset(descr_req.pdr_descr, 0, sizeof(descr_req.pdr_descr)); 1067cd8e09b9Sdlg strlcpy(descr_req.pdr_descr, ppp->username, sizeof(descr_req.pdr_descr)); 1068cd8e09b9Sdlg error = ioctl(_this->iface[ppp->ifidx].devf, PIPEXSIFDESCR, &descr_req); 1069cd8e09b9Sdlg if (error != 0) { 1070cd8e09b9Sdlg log_printf(LOG_WARNING, "PIPEXSIFDESCR(%s) failed: %d\n", ppp->username, error); 1071cd8e09b9Sdlg } 1072cd8e09b9Sdlg } 1073cd8e09b9Sdlg 10740fbf3537Syasuoka ppp->pipex_enabled = 1; 10750fbf3537Syasuoka if (ppp->timeout_sec > 0) { 1076f0a4e295Syasuoka /* Stop the npppd's idle-timer. We use pipex's idle-timer */ 10770fbf3537Syasuoka ppp->timeout_sec = 0; 10780fbf3537Syasuoka ppp_reset_idle_timeout(ppp); 10790fbf3537Syasuoka } 10800fbf3537Syasuoka 10810fbf3537Syasuoka return error; 10820fbf3537Syasuoka } 10830fbf3537Syasuoka 1084f0a4e295Syasuoka /** Disable PIPEX of the {@link npppd_ppp ppp} */ 10850fbf3537Syasuoka int 10860fbf3537Syasuoka npppd_ppp_pipex_disable(npppd *_this, npppd_ppp *ppp) 10870fbf3537Syasuoka { 10880fbf3537Syasuoka struct pipex_session_close_req req; 10890fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 10900fbf3537Syasuoka pppoe_session *pppoe; 10910fbf3537Syasuoka #endif 10920fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 10930fbf3537Syasuoka pptp_call *call; 10940fbf3537Syasuoka #endif 1095886d2b78Syasuoka #ifdef USE_NPPPD_L2TP 1096886d2b78Syasuoka l2tp_call *l2tp; 1097886d2b78Syasuoka #endif 10980fbf3537Syasuoka int error; 10990fbf3537Syasuoka 11000fbf3537Syasuoka if (ppp->pipex_started == 0) 11010fbf3537Syasuoka return 0; /* not started */ 11020fbf3537Syasuoka 11030fbf3537Syasuoka bzero(&req, sizeof(req)); 11040fbf3537Syasuoka switch(ppp->tunnel_type) { 11050fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 1106821f7c56Syasuoka case NPPPD_TUNNEL_PPPOE: 11070fbf3537Syasuoka pppoe = (pppoe_session *)ppp->phy_context; 11080fbf3537Syasuoka 1109f0a4e295Syasuoka /* PPPoE specific informations */ 11100fbf3537Syasuoka req.pcr_protocol = PIPEX_PROTO_PPPOE; 11110fbf3537Syasuoka req.pcr_session_id = pppoe->session_id; 11120fbf3537Syasuoka break; 11130fbf3537Syasuoka #endif 11140fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 1115821f7c56Syasuoka case NPPPD_TUNNEL_PPTP: 11160fbf3537Syasuoka call = (pptp_call *)ppp->phy_context; 11170fbf3537Syasuoka 1118f0a4e295Syasuoka /* PPTP specific informations */ 11190fbf3537Syasuoka req.pcr_session_id = call->id; 11200fbf3537Syasuoka req.pcr_protocol = PIPEX_PROTO_PPTP; 11210fbf3537Syasuoka break; 11220fbf3537Syasuoka #endif 1123fd218b06Smarkus #ifdef USE_NPPPD_L2TP 1124821f7c56Syasuoka case NPPPD_TUNNEL_L2TP: 1125fd218b06Smarkus l2tp = (l2tp_call *)ppp->phy_context; 1126fd218b06Smarkus 1127fd218b06Smarkus /* L2TP specific context */ 1128fd218b06Smarkus req.pcr_session_id = l2tp->session_id; 1129fd218b06Smarkus req.pcr_protocol = PIPEX_PROTO_L2TP; 1130fd218b06Smarkus break; 1131fd218b06Smarkus #endif 11320fbf3537Syasuoka default: 11330fbf3537Syasuoka return 1; 11340fbf3537Syasuoka } 11350fbf3537Syasuoka 11360fbf3537Syasuoka error = ioctl(_this->iface[ppp->ifidx].devf, PIPEXDSESSION, &req); 11370fbf3537Syasuoka if (error == 0) { 11380fbf3537Syasuoka ppp->ipackets += req.pcr_stat.ipackets; 11390fbf3537Syasuoka ppp->opackets += req.pcr_stat.opackets; 11400fbf3537Syasuoka ppp->ierrors += req.pcr_stat.ierrors; 11410fbf3537Syasuoka ppp->oerrors += req.pcr_stat.oerrors; 11420fbf3537Syasuoka ppp->ibytes += req.pcr_stat.ibytes; 11430fbf3537Syasuoka ppp->obytes += req.pcr_stat.obytes; 11440fbf3537Syasuoka ppp->pipex_enabled = 0; 11450fbf3537Syasuoka } 11460fbf3537Syasuoka 11470fbf3537Syasuoka return error; 11480fbf3537Syasuoka } 11490fbf3537Syasuoka 1150f0a4e295Syasuoka /* XXX: s/npppd_ppp_pipex_ip_disable/npppd_ppp_pipex_stop/ ?? */ 1151f0a4e295Syasuoka 1152f0a4e295Syasuoka /** Stop PIPEX of the {@link npppd_ppp ppp} */ 11530fbf3537Syasuoka static int 11540fbf3537Syasuoka npppd_ppp_pipex_ip_disable(npppd *_this, npppd_ppp *ppp) 11550fbf3537Syasuoka { 11560fbf3537Syasuoka struct pipex_session_config_req req; 11570fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 11580fbf3537Syasuoka pppoe_session *pppoe; 11590fbf3537Syasuoka #endif 11600fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 11610fbf3537Syasuoka pptp_call *call; 11620fbf3537Syasuoka #endif 1163886d2b78Syasuoka #ifdef USE_NPPPD_L2TP 1164886d2b78Syasuoka l2tp_call *l2tp; 1165886d2b78Syasuoka #endif 11660fbf3537Syasuoka if (ppp->pipex_started == 0) 11670fbf3537Syasuoka return 0; /* not started */ 11680fbf3537Syasuoka 11690fbf3537Syasuoka bzero(&req, sizeof(req)); 11700fbf3537Syasuoka switch(ppp->tunnel_type) { 11710fbf3537Syasuoka #ifdef USE_NPPPD_PPPOE 1172821f7c56Syasuoka case NPPPD_TUNNEL_PPPOE: 11730fbf3537Syasuoka pppoe = (pppoe_session *)ppp->phy_context; 11740fbf3537Syasuoka 1175f0a4e295Syasuoka /* PPPoE specific informations */ 11760fbf3537Syasuoka req.pcr_protocol = PIPEX_PROTO_PPPOE; 11770fbf3537Syasuoka req.pcr_session_id = pppoe->session_id; 11780fbf3537Syasuoka break; 11790fbf3537Syasuoka #endif 11800fbf3537Syasuoka #ifdef USE_NPPPD_PPTP 1181821f7c56Syasuoka case NPPPD_TUNNEL_PPTP: 11820fbf3537Syasuoka call = (pptp_call *)ppp->phy_context; 11830fbf3537Syasuoka 1184f0a4e295Syasuoka /* PPTP specific informations */ 11850fbf3537Syasuoka req.pcr_session_id = call->id; 11860fbf3537Syasuoka req.pcr_protocol = PIPEX_PROTO_PPTP; 11870fbf3537Syasuoka break; 11880fbf3537Syasuoka #endif 1189886d2b78Syasuoka #ifdef USE_NPPPD_L2TP 1190821f7c56Syasuoka case NPPPD_TUNNEL_L2TP: 1191886d2b78Syasuoka l2tp = (l2tp_call *)ppp->phy_context; 1192886d2b78Syasuoka 1193886d2b78Syasuoka /* L2TP specific context */ 1194886d2b78Syasuoka req.pcr_session_id = l2tp->session_id; 1195886d2b78Syasuoka req.pcr_protocol = PIPEX_PROTO_L2TP; 1196886d2b78Syasuoka break; 1197886d2b78Syasuoka #endif 11980fbf3537Syasuoka default: 11990fbf3537Syasuoka return 1; 12000fbf3537Syasuoka } 12010fbf3537Syasuoka req.pcr_ip_forward = 0; 12020fbf3537Syasuoka 12030fbf3537Syasuoka return ioctl(_this->iface[ppp->ifidx].devf, PIPEXCSESSION, &req); 12040fbf3537Syasuoka } 12050fbf3537Syasuoka 12060fbf3537Syasuoka static void 12070fbf3537Syasuoka pipex_periodic(npppd *_this) 12080fbf3537Syasuoka { 12090fbf3537Syasuoka struct pipex_session_list_req req; 12100fbf3537Syasuoka npppd_ppp *ppp; 1211ec8bab80Syasuoka int i, devf, error; 1212363e4d4bSyasuoka u_int ppp_id; 12130fbf3537Syasuoka slist dlist, users; 12140fbf3537Syasuoka 12150fbf3537Syasuoka slist_init(&dlist); 12160fbf3537Syasuoka slist_init(&users); 1217ec8bab80Syasuoka 1218ec8bab80Syasuoka devf = -1; 1219ec8bab80Syasuoka for (i = 0; i < nitems(_this->iface); i++) { 1220ec8bab80Syasuoka if (_this->iface[i].initialized != 0) { 1221ec8bab80Syasuoka devf = _this->iface[i].devf; 1222ec8bab80Syasuoka break; 1223ec8bab80Syasuoka } 1224ec8bab80Syasuoka } 1225ec8bab80Syasuoka if (devf >= 0) { 12260fbf3537Syasuoka do { 1227ec8bab80Syasuoka error = ioctl(devf, PIPEXGCLOSED, &req); 12280fbf3537Syasuoka if (error) { 12290fbf3537Syasuoka if (errno != ENXIO) 12300fbf3537Syasuoka log_printf(LOG_WARNING, 12310fbf3537Syasuoka "PIPEXGCLOSED failed: %m"); 12320fbf3537Syasuoka break; 12330fbf3537Syasuoka } 12340fbf3537Syasuoka for (i = 0; i < req.plr_ppp_id_count; i++) { 12350fbf3537Syasuoka ppp_id = req.plr_ppp_id[i]; 1236c46ae403Syasuoka slist_add(&dlist, (void *)(uintptr_t)ppp_id); 12370fbf3537Syasuoka } 12380fbf3537Syasuoka } while (req.plr_flags & PIPEX_LISTREQ_MORE); 1239ec8bab80Syasuoka } 12400fbf3537Syasuoka 12410fbf3537Syasuoka if (slist_length(&dlist) <= 0) 12420fbf3537Syasuoka goto pipex_done; 12430fbf3537Syasuoka if (npppd_get_all_users(_this, &users) != 0) { 12440fbf3537Syasuoka log_printf(LOG_WARNING, 12450fbf3537Syasuoka "npppd_get_all_users() failed in %s()", __func__); 12460fbf3537Syasuoka slist_fini(&users); 12470fbf3537Syasuoka goto pipex_done; 12480fbf3537Syasuoka } 12490fbf3537Syasuoka 1250f0a4e295Syasuoka /* Disconnect request */ 12510fbf3537Syasuoka slist_itr_first(&dlist); 12520fbf3537Syasuoka while (slist_itr_has_next(&dlist)) { 1253f0a4e295Syasuoka /* FIXME: Linear search by PPP Id eats CPU */ 1254c46ae403Syasuoka ppp_id = (uintptr_t)slist_itr_next(&dlist); 12550fbf3537Syasuoka slist_itr_first(&users); 12560fbf3537Syasuoka ppp = NULL; 12570fbf3537Syasuoka while (slist_itr_has_next(&users)) { 12580fbf3537Syasuoka ppp = slist_itr_next(&users); 12590fbf3537Syasuoka if (ppp_id == ppp->id) { 12600fbf3537Syasuoka /* found */ 12610fbf3537Syasuoka slist_itr_remove(&users); 12620fbf3537Syasuoka break; 12630fbf3537Syasuoka } 12640fbf3537Syasuoka ppp = NULL; 12650fbf3537Syasuoka } 12660fbf3537Syasuoka if (ppp == NULL) { 12670fbf3537Syasuoka log_printf(LOG_WARNING, 12680fbf3537Syasuoka "kernel requested a ppp down, but it's not found. " 12690fbf3537Syasuoka "ppp=%d", ppp_id); 12700fbf3537Syasuoka continue; 12710fbf3537Syasuoka } 12720fbf3537Syasuoka ppp_log(ppp, LOG_INFO, "Stop requested by the kernel"); 12738daf7599Syasuoka /* TODO: PIPEX doesn't return the disconect reason */ 12748daf7599Syasuoka #ifdef USE_NPPPD_RADIUS 12758daf7599Syasuoka ppp_set_radius_terminate_cause(ppp, 12768daf7599Syasuoka RADIUS_TERMNATE_CAUSE_IDLE_TIMEOUT); 12778daf7599Syasuoka #endif 12780fbf3537Syasuoka ppp_stop(ppp, NULL); 12790fbf3537Syasuoka } 12800fbf3537Syasuoka pipex_done: 12810fbf3537Syasuoka slist_fini(&users); 12820fbf3537Syasuoka slist_fini(&dlist); 12830fbf3537Syasuoka } 12840fbf3537Syasuoka #endif /* USE_NPPPD_PIPEX */ 12850fbf3537Syasuoka 12860fbf3537Syasuoka /*********************************************************************** 1287f0a4e295Syasuoka * IP address assignment related functions 12880fbf3537Syasuoka ***********************************************************************/ 1289f0a4e295Syasuoka /** Prepare to use IP */ 12900fbf3537Syasuoka int 12910fbf3537Syasuoka npppd_prepare_ip(npppd *_this, npppd_ppp *ppp) 12920fbf3537Syasuoka { 1293821f7c56Syasuoka 12940fbf3537Syasuoka if (ppp_ipcp(ppp) == NULL) 12950fbf3537Syasuoka return 1; 12960fbf3537Syasuoka 12970fbf3537Syasuoka npppd_get_user_framed_ip_address(_this, ppp, ppp->username); 12980fbf3537Syasuoka 12990fbf3537Syasuoka if (npppd_iface_ip_is_ready(ppp_iface(ppp))) 13000fbf3537Syasuoka ppp->ipcp.ip4_our = ppp_iface(ppp)->ip4addr; 13010fbf3537Syasuoka else if (npppd_iface_ip_is_ready(&_this->iface[0])) 13020fbf3537Syasuoka ppp->ipcp.ip4_our = _this->iface[0].ip4addr; 13030fbf3537Syasuoka else 13040fbf3537Syasuoka return -1; 1305821f7c56Syasuoka ppp->ipcp.dns_pri = ppp_ipcp(ppp)->dns_servers[0]; 1306821f7c56Syasuoka ppp->ipcp.dns_sec = ppp_ipcp(ppp)->dns_servers[1]; 1307821f7c56Syasuoka ppp->ipcp.nbns_pri = ppp_ipcp(ppp)->nbns_servers[0]; 1308821f7c56Syasuoka ppp->ipcp.nbns_sec = ppp_ipcp(ppp)->nbns_servers[1]; 13090fbf3537Syasuoka 13100fbf3537Syasuoka return 0; 13110fbf3537Syasuoka } 13120fbf3537Syasuoka 1313f0a4e295Syasuoka /** Notify stop using IP to npppd and release the resources. */ 13140fbf3537Syasuoka void 13150fbf3537Syasuoka npppd_release_ip(npppd *_this, npppd_ppp *ppp) 13160fbf3537Syasuoka { 13170fbf3537Syasuoka 13180fbf3537Syasuoka if (!ppp_ip_assigned(ppp)) 13190fbf3537Syasuoka return; 13200fbf3537Syasuoka 13210fbf3537Syasuoka npppd_set_ip_enabled(_this, ppp, 0); 13220fbf3537Syasuoka npppd_pool_release_ip(ppp->assigned_pool, ppp); 13230fbf3537Syasuoka ppp->assigned_pool = NULL; 13240fbf3537Syasuoka ppp->ppp_framed_ip_address.s_addr = 0; 13250fbf3537Syasuoka } 13260fbf3537Syasuoka 1327f0a4e295Syasuoka /** 1328f0a4e295Syasuoka * Change IP enableness. When the enableness is change, npppd will operate 1329f0a4e295Syasuoka * the route entry. 1330f0a4e295Syasuoka */ 13310fbf3537Syasuoka void 13320fbf3537Syasuoka npppd_set_ip_enabled(npppd *_this, npppd_ppp *ppp, int enabled) 13330fbf3537Syasuoka { 13340fbf3537Syasuoka int was_enabled, found; 13350fbf3537Syasuoka slist *u; 13360fbf3537Syasuoka hash_link *hl; 13370fbf3537Syasuoka npppd_ppp *ppp1; 13380fbf3537Syasuoka 13390fbf3537Syasuoka NPPPD_ASSERT(ppp_ip_assigned(ppp)); 13400fbf3537Syasuoka NPPPD_DBG((LOG_DEBUG, 13410fbf3537Syasuoka "npppd_set_ip_enabled(%s/%s, %s)", ppp->username, 13420fbf3537Syasuoka inet_ntoa(ppp->ppp_framed_ip_address), 13430fbf3537Syasuoka (enabled)?"true" : "false")); 1344f0a4e295Syasuoka 13450fbf3537Syasuoka /* 1346f0a4e295Syasuoka * Don't do anything if the enableness is not change. Changing route 1347f0a4e295Syasuoka * makes many programs will wake up and do heavy operations, it causes 1348f0a4e295Syasuoka * system overload, so we refrain useless changing route. 13490fbf3537Syasuoka */ 13500fbf3537Syasuoka enabled = (enabled)? 1 : 0; 13510fbf3537Syasuoka was_enabled = (ppp->assigned_ip4_enabled != 0)? 1 : 0; 13520fbf3537Syasuoka if (enabled == was_enabled) 13530fbf3537Syasuoka return; 1354f0a4e295Syasuoka 13550fbf3537Syasuoka ppp->assigned_ip4_enabled = enabled; 13560fbf3537Syasuoka if (enabled) { 13570fbf3537Syasuoka if (ppp->username[0] != '\0') { 13580fbf3537Syasuoka if ((u = npppd_get_ppp_by_user(_this, ppp->username)) 13590fbf3537Syasuoka == NULL) { 13600fbf3537Syasuoka if ((u = malloc(sizeof(slist))) == NULL) { 13610fbf3537Syasuoka ppp_log(ppp, LOG_ERR, 13620fbf3537Syasuoka "Out of memory on %s: %m", 13630fbf3537Syasuoka __func__); 13640fbf3537Syasuoka } else { 13650fbf3537Syasuoka slist_init(u); 13660fbf3537Syasuoka slist_set_size(u, 4); 13670fbf3537Syasuoka hash_insert(_this->map_user_ppp, 13680fbf3537Syasuoka ppp->username, u); 13690fbf3537Syasuoka NPPPD_DBG((LOG_DEBUG, 13700fbf3537Syasuoka "hash_insert(user->ppp, %s)", 13710fbf3537Syasuoka ppp->username)); 13720fbf3537Syasuoka } 13730fbf3537Syasuoka } 1374f0a4e295Syasuoka if (u != NULL) /* above malloc() may failed */ 13750fbf3537Syasuoka slist_add(u, ppp); 13760fbf3537Syasuoka } 13770fbf3537Syasuoka 13780fbf3537Syasuoka #ifndef NO_ROUTE_FOR_POOLED_ADDRESS 1379cd8e09b9Sdlg if (_this->iface[ppp->ifidx].using_pppx == 0) { 13800fbf3537Syasuoka if (ppp->snp.snp_next != NULL) 1381f0a4e295Syasuoka /* 1382f0a4e295Syasuoka * There is a blackhole route that has same 1383f0a4e295Syasuoka * address/mask. 1384f0a4e295Syasuoka */ 13850fbf3537Syasuoka in_route_delete(&ppp->ppp_framed_ip_address, 1386cd8e09b9Sdlg &ppp->ppp_framed_ip_netmask, &loop, 1387cd8e09b9Sdlg RTF_BLACKHOLE); 13880fbf3537Syasuoka /* See the comment for MRU_IPMTU() on ppp.h */ 13890fbf3537Syasuoka if (ppp->ppp_framed_ip_netmask.s_addr == 0xffffffffL) { 13900fbf3537Syasuoka in_host_route_add(&ppp->ppp_framed_ip_address, 1391cd8e09b9Sdlg &ppp_iface(ppp)->ip4addr, 1392cd8e09b9Sdlg ppp_iface(ppp)->ifname, 13930fbf3537Syasuoka MRU_IPMTU(ppp->peer_mru)); 13940fbf3537Syasuoka } else { 13950fbf3537Syasuoka in_route_add(&ppp->ppp_framed_ip_address, 13960fbf3537Syasuoka &ppp->ppp_framed_ip_netmask, 1397cd8e09b9Sdlg &ppp_iface(ppp)->ip4addr, 1398cd8e09b9Sdlg ppp_iface(ppp)->ifname, 0, 13990fbf3537Syasuoka MRU_IPMTU(ppp->peer_mru)); 14000fbf3537Syasuoka } 1401cd8e09b9Sdlg } 14020fbf3537Syasuoka #endif 14030fbf3537Syasuoka } else { 14040fbf3537Syasuoka #ifndef NO_ROUTE_FOR_POOLED_ADDRESS 1405cd8e09b9Sdlg if (_this->iface[ppp->ifidx].using_pppx == 0) { 14060fbf3537Syasuoka if (ppp->ppp_framed_ip_netmask.s_addr == 0xffffffffL) { 14070fbf3537Syasuoka in_host_route_delete(&ppp->ppp_framed_ip_address, 14080fbf3537Syasuoka &ppp_iface(ppp)->ip4addr); 14090fbf3537Syasuoka } else { 14100fbf3537Syasuoka in_route_delete(&ppp->ppp_framed_ip_address, 14110fbf3537Syasuoka &ppp->ppp_framed_ip_netmask, 14120fbf3537Syasuoka &ppp_iface(ppp)->ip4addr, 0); 14130fbf3537Syasuoka } 14140fbf3537Syasuoka if (ppp->snp.snp_next != NULL) 1415f0a4e295Syasuoka /* 1416f0a4e295Syasuoka * There is a blackhole route that has same 1417f0a4e295Syasuoka * address/mask. 1418f0a4e295Syasuoka */ 1419cd8e09b9Sdlg in_route_add(&ppp->snp.snp_addr, 1420cd8e09b9Sdlg &ppp->snp.snp_mask, &loop, LOOPBACK_IFNAME, 1421cd8e09b9Sdlg RTF_BLACKHOLE, 0); 1422cd8e09b9Sdlg } 14230fbf3537Syasuoka #endif 14240fbf3537Syasuoka if (ppp->username[0] != '\0') { 14250fbf3537Syasuoka hl = hash_lookup(_this->map_user_ppp, ppp->username); 14260fbf3537Syasuoka NPPPD_ASSERT(hl != NULL); 14270fbf3537Syasuoka if (hl == NULL) { 14280fbf3537Syasuoka ppp_log(ppp, LOG_ERR, 14290fbf3537Syasuoka "Unexpected error: cannot find user(%s) " 14300fbf3537Syasuoka "from user database", ppp->username); 14310fbf3537Syasuoka return; 14320fbf3537Syasuoka } 14330fbf3537Syasuoka found = 0; 14340fbf3537Syasuoka u = hl->item; 14350fbf3537Syasuoka for (slist_itr_first(u); slist_itr_has_next(u);) { 14360fbf3537Syasuoka ppp1 = slist_itr_next(u); 14370fbf3537Syasuoka if (ppp1 == ppp) { 14380fbf3537Syasuoka slist_itr_remove(u); 14390fbf3537Syasuoka found++; 14400fbf3537Syasuoka break; 14410fbf3537Syasuoka } 14420fbf3537Syasuoka } 14430fbf3537Syasuoka if (found == 0) { 14440fbf3537Syasuoka ppp_log(ppp, LOG_ERR, 14450fbf3537Syasuoka "Unexpected error: PPP instance is " 14460fbf3537Syasuoka "not found in the user's list."); 14470fbf3537Syasuoka } 14480fbf3537Syasuoka NPPPD_ASSERT(found != 0); 14490fbf3537Syasuoka if (slist_length(u) <= 0) { 1450f0a4e295Syasuoka /* The last PPP */ 14510fbf3537Syasuoka NPPPD_DBG((LOG_DEBUG, 14520fbf3537Syasuoka "hash_delete(user->ppp, %s)", 14530fbf3537Syasuoka ppp->username)); 14540fbf3537Syasuoka if (hash_delete(_this->map_user_ppp, 14550fbf3537Syasuoka ppp->username, 0) != 0) { 14560fbf3537Syasuoka ppp_log(ppp, LOG_ERR, 14570fbf3537Syasuoka "Unexpected error: cannot delete " 14580fbf3537Syasuoka "user(%s) from user database", 14590fbf3537Syasuoka ppp->username); 14600fbf3537Syasuoka } 14610fbf3537Syasuoka slist_fini(u); 14620fbf3537Syasuoka free(u); 14630fbf3537Syasuoka } else { 1464f0a4e295Syasuoka /* Replace the reference. */ 14650fbf3537Syasuoka ppp1 = slist_get(u, 0); 14660fbf3537Syasuoka hl->key = ppp1->username; 14670fbf3537Syasuoka } 14680fbf3537Syasuoka } 14690fbf3537Syasuoka #ifdef USE_NPPPD_PIPEX 14700fbf3537Syasuoka if (npppd_ppp_pipex_ip_disable(_this, ppp) != 0) 14710fbf3537Syasuoka ppp_log(ppp, LOG_ERR, 14720fbf3537Syasuoka "npppd_ppp_pipex_ip_disable() failed: %m"); 14730fbf3537Syasuoka #endif /* USE_NPPPD_PIPEX */ 14740fbf3537Syasuoka } 14750fbf3537Syasuoka } 14760fbf3537Syasuoka 14770fbf3537Syasuoka /** 1478f0a4e295Syasuoka * Assign the IP address. Returning "struct in_addr" is stored IP address 1479f0a4e295Syasuoka * in network byte order. 1480f0a4e295Syasuoka * @param req_ip4 IP address request to assign. If the address is used 1481f0a4e295Syasuoka * already, this function will return fail. 14820fbf3537Syasuoka */ 14830fbf3537Syasuoka int 14840fbf3537Syasuoka npppd_assign_ip_addr(npppd *_this, npppd_ppp *ppp, uint32_t req_ip4) 14850fbf3537Syasuoka { 14860fbf3537Syasuoka uint32_t ip4, ip4mask; 1487821f7c56Syasuoka int dyna, rval, fallback_dyna; 14880fbf3537Syasuoka const char *reason = "out of the pool"; 14890fbf3537Syasuoka struct sockaddr_npppd *snp; 14900fbf3537Syasuoka npppd_pool *pool; 14910fbf3537Syasuoka npppd_auth_base *realm; 14920fbf3537Syasuoka 14930fbf3537Syasuoka NPPPD_DBG((LOG_DEBUG, "%s() assigned=%s", __func__, 14940fbf3537Syasuoka (ppp_ip_assigned(ppp))? "true" : "false")); 14950fbf3537Syasuoka if (ppp_ip_assigned(ppp)) 14960fbf3537Syasuoka return 0; 14970fbf3537Syasuoka 14980fbf3537Syasuoka ip4 = INADDR_ANY; 14990fbf3537Syasuoka ip4mask = 0xffffffffL; 15000fbf3537Syasuoka realm = ppp->realm; 15010fbf3537Syasuoka dyna = 0; 15020fbf3537Syasuoka fallback_dyna = 0; 15030fbf3537Syasuoka pool = NULL; 15040fbf3537Syasuoka 15050fbf3537Syasuoka if (ppp->realm_framed_ip_address.s_addr == INADDR_USER_SELECT) { 15060fbf3537Syasuoka if (req_ip4 == INADDR_ANY) 15070fbf3537Syasuoka dyna = 1; 15080fbf3537Syasuoka } else if (ppp->realm_framed_ip_address.s_addr == INADDR_NAS_SELECT) { 15090fbf3537Syasuoka dyna = 1; 15100fbf3537Syasuoka } else { 15110fbf3537Syasuoka NPPPD_ASSERT(realm != NULL); 15120fbf3537Syasuoka fallback_dyna = 1; 15130fbf3537Syasuoka req_ip4 = ntohl(ppp->realm_framed_ip_address.s_addr); 15140fbf3537Syasuoka ip4mask = ntohl(ppp->realm_framed_ip_netmask.s_addr); 15150fbf3537Syasuoka } 15160fbf3537Syasuoka if (!dyna) { 15170fbf3537Syasuoka /* 1518f0a4e295Syasuoka * Realm requires the fixed IP address, but the address 1519f0a4e295Syasuoka * doesn't belong any address pool. Fallback to dynamic 1520f0a4e295Syasuoka * assignment. 15210fbf3537Syasuoka */ 1522821f7c56Syasuoka pool = ppp_pool(ppp); 1523821f7c56Syasuoka rval = npppd_pool_get_assignability(pool, req_ip4, ip4mask, 1524821f7c56Syasuoka &snp); 15250fbf3537Syasuoka switch (rval) { 15260fbf3537Syasuoka case ADDRESS_OK: 15270fbf3537Syasuoka if (snp->snp_type == SNP_POOL) { 15280fbf3537Syasuoka /* 1529821f7c56Syasuoka * Fixed address pool can be used only if the 1530821f7c56Syasuoka * realm specified to use it. 15310fbf3537Syasuoka */ 15320fbf3537Syasuoka if (ppp->realm_framed_ip_address 15330fbf3537Syasuoka .s_addr != INADDR_USER_SELECT) 15340fbf3537Syasuoka ip4 = req_ip4; 15350fbf3537Syasuoka break; 15360fbf3537Syasuoka } 15370fbf3537Syasuoka ppp->assign_dynapool = 1; 15380fbf3537Syasuoka ip4 = req_ip4; 15390fbf3537Syasuoka break; 15400fbf3537Syasuoka case ADDRESS_RESERVED: 15410fbf3537Syasuoka reason = "reserved"; 1542821f7c56Syasuoka break; 15430fbf3537Syasuoka case ADDRESS_OUT_OF_POOL: 15440fbf3537Syasuoka reason = "out of the pool"; 1545821f7c56Syasuoka break; 15460fbf3537Syasuoka case ADDRESS_BUSY: 15470fbf3537Syasuoka fallback_dyna = 0; 15480fbf3537Syasuoka reason = "busy"; 15490fbf3537Syasuoka break; 15500fbf3537Syasuoka default: 15510fbf3537Syasuoka case ADDRESS_INVALID: 15520fbf3537Syasuoka fallback_dyna = 0; 15530fbf3537Syasuoka reason = "invalid"; 15540fbf3537Syasuoka break; 15550fbf3537Syasuoka } 15560fbf3537Syasuoka #define IP_4OCT(v) ((0xff000000 & (v)) >> 24), ((0x00ff0000 & (v)) >> 16),\ 15570fbf3537Syasuoka ((0x0000ff00 & (v)) >> 8), (0x000000ff & (v)) 15580fbf3537Syasuoka if (ip4 == 0) { 15590fbf3537Syasuoka ppp_log(ppp, LOG_NOTICE, 15600fbf3537Syasuoka "Requested IP address (%d.%d.%d.%d)/%d " 15610fbf3537Syasuoka "is %s", IP_4OCT(req_ip4), 15620fbf3537Syasuoka netmask2prefixlen(htonl(ip4mask)), reason); 15630fbf3537Syasuoka if (fallback_dyna) 15640fbf3537Syasuoka goto dyna_assign; 15650fbf3537Syasuoka return 1; 15660fbf3537Syasuoka } 156732012184Syasuoka ppp->assigned_pool = pool; 15680fbf3537Syasuoka 15690fbf3537Syasuoka ppp->ppp_framed_ip_address.s_addr = htonl(ip4); 15700fbf3537Syasuoka ppp->ppp_framed_ip_netmask.s_addr = htonl(ip4mask); 1571b0b96f97Syasuoka ppp->acct_framed_ip_address = ppp->ppp_framed_ip_address; 15720fbf3537Syasuoka } else { 15730fbf3537Syasuoka dyna_assign: 1574821f7c56Syasuoka pool = ppp_pool(ppp); 15750fbf3537Syasuoka ip4 = npppd_pool_get_dynamic(pool, ppp); 15760fbf3537Syasuoka if (ip4 == 0) { 15770fbf3537Syasuoka ppp_log(ppp, LOG_NOTICE, 15780fbf3537Syasuoka "No free address in the pool."); 15790fbf3537Syasuoka return 1; 15800fbf3537Syasuoka } 15810fbf3537Syasuoka ppp->assigned_pool = pool; 15820fbf3537Syasuoka ppp->assign_dynapool = 1; 15830fbf3537Syasuoka ppp->ppp_framed_ip_address.s_addr = htonl(ip4); 15840fbf3537Syasuoka ppp->ppp_framed_ip_netmask.s_addr = htonl(0xffffffffL); 1585b0b96f97Syasuoka ppp->acct_framed_ip_address = ppp->ppp_framed_ip_address; 15860fbf3537Syasuoka } 15870fbf3537Syasuoka 15880fbf3537Syasuoka return npppd_pool_assign_ip(ppp->assigned_pool, ppp); 15890fbf3537Syasuoka } 15900fbf3537Syasuoka 15910fbf3537Syasuoka static void * 15920fbf3537Syasuoka rtlist_remove(slist *prtlist, struct radish *radish) 15930fbf3537Syasuoka { 15940fbf3537Syasuoka struct radish *r; 15950fbf3537Syasuoka 15960fbf3537Syasuoka slist_itr_first(prtlist); 15970fbf3537Syasuoka while (slist_itr_has_next(prtlist)) { 15980fbf3537Syasuoka r = slist_itr_next(prtlist); 15990fbf3537Syasuoka if (!sockaddr_npppd_match(radish->rd_route, r->rd_route) || 16000fbf3537Syasuoka !sockaddr_npppd_match(radish->rd_mask, r->rd_mask)) 16010fbf3537Syasuoka continue; 16020fbf3537Syasuoka 16030fbf3537Syasuoka return slist_itr_remove(prtlist); 16040fbf3537Syasuoka } 16050fbf3537Syasuoka 16060fbf3537Syasuoka return NULL; 16070fbf3537Syasuoka } 16080fbf3537Syasuoka 1609f0a4e295Syasuoka /** Set {@link ::npppd#rd the only radish of npppd} */ 16100fbf3537Syasuoka int 16110fbf3537Syasuoka npppd_set_radish(npppd *_this, void *radish_head) 16120fbf3537Syasuoka { 16130fbf3537Syasuoka int rval, delppp0, count; 16140fbf3537Syasuoka struct sockaddr_npppd *snp; 16150fbf3537Syasuoka struct radish *radish, *r; 16160fbf3537Syasuoka slist rtlist0, rtlist1, delppp; 16170fbf3537Syasuoka npppd_ppp *ppp; 16180fbf3537Syasuoka void *dummy; 16190fbf3537Syasuoka 16200fbf3537Syasuoka slist_init(&rtlist0); 16210fbf3537Syasuoka slist_init(&rtlist1); 16220fbf3537Syasuoka slist_init(&delppp); 16230fbf3537Syasuoka 16240fbf3537Syasuoka if (radish_head != NULL) { 16250fbf3537Syasuoka if (rd2slist(radish_head, &rtlist1) != 0) { 16260fbf3537Syasuoka log_printf(LOG_WARNING, "rd2slist failed: %m"); 1627f0a4e295Syasuoka goto fail; 16280fbf3537Syasuoka } 16290fbf3537Syasuoka } 16300fbf3537Syasuoka if (_this->rd != NULL) { 16310fbf3537Syasuoka if (rd2slist(_this->rd, &rtlist0) != 0) { 16320fbf3537Syasuoka log_printf(LOG_WARNING, "rd2slist failed: %m"); 1633f0a4e295Syasuoka goto fail; 16340fbf3537Syasuoka } 16350fbf3537Syasuoka } 16360fbf3537Syasuoka if (_this->rd != NULL && radish_head != NULL) { 16370fbf3537Syasuoka for (slist_itr_first(&rtlist0); slist_itr_has_next(&rtlist0);) { 16380fbf3537Syasuoka radish = slist_itr_next(&rtlist0); 16390fbf3537Syasuoka snp = radish->rd_rtent; 16400fbf3537Syasuoka /* 1641f0a4e295Syasuoka * replace the pool address 16420fbf3537Syasuoka */ 16430fbf3537Syasuoka if (snp->snp_type == SNP_POOL || 16440fbf3537Syasuoka snp->snp_type == SNP_DYN_POOL) { 16450fbf3537Syasuoka if (rd_lookup(radish->rd_route, radish->rd_mask, 16460fbf3537Syasuoka radish_head) == NULL) 16470fbf3537Syasuoka continue; 1648f0a4e295Syasuoka /* don't add */ 16490fbf3537Syasuoka rtlist_remove(&rtlist1, radish); 1650f0a4e295Syasuoka /* don't delete */ 16510fbf3537Syasuoka slist_itr_remove(&rtlist0); 16520fbf3537Syasuoka continue; 16530fbf3537Syasuoka } 16540fbf3537Syasuoka /* 1655f0a4e295Syasuoka * handle the active PPP sessions. 16560fbf3537Syasuoka */ 16570fbf3537Syasuoka NPPPD_ASSERT(snp->snp_type == SNP_PPP); 16580fbf3537Syasuoka ppp = snp->snp_data_ptr; 16590fbf3537Syasuoka 1660f0a4e295Syasuoka /* Don't delete the route of active PPP session */ 16610fbf3537Syasuoka slist_itr_remove(&rtlist0); 16620fbf3537Syasuoka 1663f0a4e295Syasuoka /* clear informations about old pool configuration */ 16640fbf3537Syasuoka snp->snp_next = NULL; 16650fbf3537Syasuoka 16660fbf3537Syasuoka delppp0 = 0; 16670fbf3537Syasuoka if (!rd_match((struct sockaddr *)snp, radish_head, &r)){ 16680fbf3537Syasuoka /* 1669f0a4e295Syasuoka * If the address doesn't belong the new pools, 1670f0a4e295Syasuoka * add the PPP session to the deletion list. 16710fbf3537Syasuoka */ 16720fbf3537Syasuoka slist_add(&delppp, snp->snp_data_ptr); 16730fbf3537Syasuoka delppp0 = 1; 16740fbf3537Syasuoka } else { 16750fbf3537Syasuoka NPPPD_ASSERT( 16760fbf3537Syasuoka ((struct sockaddr_npppd *)r->rd_rtent) 16770fbf3537Syasuoka ->snp_type == SNP_POOL || 16780fbf3537Syasuoka ((struct sockaddr_npppd *)r->rd_rtent) 16790fbf3537Syasuoka ->snp_type == SNP_DYN_POOL); 16800fbf3537Syasuoka /* 1681f0a4e295Syasuoka * If there is a pool entry that has same 1682f0a4e295Syasuoka * address/mask, then make the RADISH entry a 1683f0a4e295Syasuoka * list. Set SNP_PPP as the first in the list, 1684f0a4e295Syasuoka * set current entry in snp->snp_next and 1685f0a4e295Syasuoka * delete it. 16860fbf3537Syasuoka */ 16870fbf3537Syasuoka if (sockaddr_npppd_match( 16880fbf3537Syasuoka radish->rd_route, r->rd_route) && 16890fbf3537Syasuoka sockaddr_npppd_match( 16900fbf3537Syasuoka radish->rd_mask, r->rd_mask)) { 1691f0a4e295Syasuoka /* 1692f0a4e295Syasuoka * Releasing it, so remove it from the 1693f0a4e295Syasuoka * new routing list. 1694f0a4e295Syasuoka */ 16950fbf3537Syasuoka rtlist_remove(&rtlist1, radish); 1696f0a4e295Syasuoka /* set as snp_snp_next */ 16970fbf3537Syasuoka snp->snp_next = r->rd_rtent; 16980fbf3537Syasuoka rval = rd_delete(r->rd_route, 16990fbf3537Syasuoka r->rd_mask, radish_head, &dummy); 17000fbf3537Syasuoka NPPPD_ASSERT(rval == 0); 17010fbf3537Syasuoka } 17020fbf3537Syasuoka } 1703f0a4e295Syasuoka /* Register to the new radish */ 17040fbf3537Syasuoka rval = rd_insert(radish->rd_route, radish->rd_mask, 17050fbf3537Syasuoka radish_head, snp); 17060fbf3537Syasuoka if (rval != 0) { 17070fbf3537Syasuoka errno = rval; 17080fbf3537Syasuoka ppp_log(((npppd_ppp *)snp->snp_data_ptr), 17090fbf3537Syasuoka LOG_ERR, 17100fbf3537Syasuoka "Fatal error on %s, cannot continue " 17110fbf3537Syasuoka "this ppp session: %m", __func__); 17120fbf3537Syasuoka if (!delppp0) 17130fbf3537Syasuoka slist_add(&delppp, snp->snp_data_ptr); 17140fbf3537Syasuoka } 17150fbf3537Syasuoka } 17160fbf3537Syasuoka } 17170fbf3537Syasuoka count = 0; 17180fbf3537Syasuoka #ifndef NO_ROUTE_FOR_POOLED_ADDRESS 1719cd8e09b9Sdlg if (_this->iface[0].using_pppx == 0) { 17200fbf3537Syasuoka for (slist_itr_first(&rtlist0); slist_itr_has_next(&rtlist0);) { 17210fbf3537Syasuoka radish = slist_itr_next(&rtlist0); 17220fbf3537Syasuoka in_route_delete(&SIN(radish->rd_route)->sin_addr, 1723cd8e09b9Sdlg &SIN(radish->rd_mask)->sin_addr, &loop, 1724cd8e09b9Sdlg RTF_BLACKHOLE); 17250fbf3537Syasuoka count++; 17260fbf3537Syasuoka } 17270fbf3537Syasuoka if (count > 0) 17280fbf3537Syasuoka log_printf(LOG_INFO, 17290fbf3537Syasuoka "Deleted %d routes for old pool addresses", count); 17300fbf3537Syasuoka 17310fbf3537Syasuoka count = 0; 17320fbf3537Syasuoka for (slist_itr_first(&rtlist1); slist_itr_has_next(&rtlist1);) { 17330fbf3537Syasuoka radish = slist_itr_next(&rtlist1); 17340fbf3537Syasuoka in_route_add(&(SIN(radish->rd_route)->sin_addr), 1735cd8e09b9Sdlg &SIN(radish->rd_mask)->sin_addr, &loop, 1736cd8e09b9Sdlg LOOPBACK_IFNAME, RTF_BLACKHOLE, 0); 17370fbf3537Syasuoka count++; 17380fbf3537Syasuoka } 17390fbf3537Syasuoka if (count > 0) 17400fbf3537Syasuoka log_printf(LOG_INFO, 1741cd8e09b9Sdlg "Added %d routes for new pool addresses", 1742cd8e09b9Sdlg count); 1743cd8e09b9Sdlg } 17440fbf3537Syasuoka #endif 17450fbf3537Syasuoka slist_fini(&rtlist0); 17460fbf3537Syasuoka slist_fini(&rtlist1); 17470fbf3537Syasuoka 1748230b2897Syasuoka if (_this->rd != NULL) { 17490fbf3537Syasuoka npppd_rd_walktree_delete(_this->rd); 1750230b2897Syasuoka _this->rd = NULL; 1751230b2897Syasuoka } 175284c9ec02Syasuoka if (radish_head == NULL) 175384c9ec02Syasuoka npppd_get_all_users(_this, &delppp); 17543089d6fcSyasuoka _this->rd = radish_head; 17550fbf3537Syasuoka 17560fbf3537Syasuoka for (slist_itr_first(&delppp); slist_itr_has_next(&delppp);) { 17570fbf3537Syasuoka ppp = slist_itr_next(&delppp); 17580fbf3537Syasuoka ppp_log(ppp, LOG_NOTICE, 17590fbf3537Syasuoka "stop. IP address of this ppp is out of the pool.: %s", 17600fbf3537Syasuoka inet_ntoa(ppp->ppp_framed_ip_address)); 17610fbf3537Syasuoka ppp_stop(ppp, NULL); 17620fbf3537Syasuoka } 17630fbf3537Syasuoka slist_fini(&delppp); 17640fbf3537Syasuoka 17650fbf3537Syasuoka return 0; 1766f0a4e295Syasuoka fail: 17670fbf3537Syasuoka slist_fini(&rtlist0); 17680fbf3537Syasuoka slist_fini(&rtlist1); 17690fbf3537Syasuoka slist_fini(&delppp); 17700fbf3537Syasuoka 17710fbf3537Syasuoka return 1; 17720fbf3537Syasuoka } 17730fbf3537Syasuoka 17740fbf3537Syasuoka /** 1775f0a4e295Syasuoka * This function stores all users to {@link slist} and returns them. 1776f0a4e295Syasuoka * References to {@link ::npppd_ppp} will be stored in users. 17770fbf3537Syasuoka */ 177834682664Syasuoka static int 17790fbf3537Syasuoka npppd_get_all_users(npppd *_this, slist *users) 17800fbf3537Syasuoka { 17810fbf3537Syasuoka int rval; 17820fbf3537Syasuoka struct radish *rd; 17830fbf3537Syasuoka struct sockaddr_npppd *snp; 17840fbf3537Syasuoka slist list; 17850fbf3537Syasuoka 17860fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 17870fbf3537Syasuoka 17880fbf3537Syasuoka slist_init(&list); 178984c9ec02Syasuoka if (_this->rd == NULL) 179084c9ec02Syasuoka return 0; 17910fbf3537Syasuoka rval = rd2slist(_this->rd, &list); 17920fbf3537Syasuoka if (rval != 0) 17930fbf3537Syasuoka return rval; 17940fbf3537Syasuoka 17950fbf3537Syasuoka for (slist_itr_first(&list); slist_itr_has_next(&list);) { 17960fbf3537Syasuoka rd = slist_itr_next(&list); 17970fbf3537Syasuoka snp = rd->rd_rtent; 17980fbf3537Syasuoka if (snp->snp_type == SNP_PPP) { 17990fbf3537Syasuoka if (slist_add(users, snp->snp_data_ptr) == NULL) { 18000fbf3537Syasuoka log_printf(LOG_ERR, 18010fbf3537Syasuoka "slist_add() failed in %s: %m", __func__); 1802f0a4e295Syasuoka goto fail; 18030fbf3537Syasuoka } 18040fbf3537Syasuoka } 18050fbf3537Syasuoka } 18060fbf3537Syasuoka slist_fini(&list); 18070fbf3537Syasuoka 18080fbf3537Syasuoka return 0; 1809f0a4e295Syasuoka fail: 18100fbf3537Syasuoka slist_fini(&list); 18110fbf3537Syasuoka 18120fbf3537Syasuoka return 1; 18130fbf3537Syasuoka } 18140fbf3537Syasuoka 18150fbf3537Syasuoka static int 18160fbf3537Syasuoka rd2slist_walk(struct radish *rd, void *list0) 18170fbf3537Syasuoka { 18180fbf3537Syasuoka slist *list = list0; 18190fbf3537Syasuoka void *r; 18200fbf3537Syasuoka 18210fbf3537Syasuoka r = slist_add(list, rd); 18220fbf3537Syasuoka if (r == NULL) 18230fbf3537Syasuoka return -1; 18240fbf3537Syasuoka return 0; 18250fbf3537Syasuoka } 18260fbf3537Syasuoka static int 18270fbf3537Syasuoka rd2slist(struct radish_head *h, slist *list) 18280fbf3537Syasuoka { 18290fbf3537Syasuoka return rd_walktree(h, rd2slist_walk, list); 18300fbf3537Syasuoka } 18310fbf3537Syasuoka 18320fbf3537Syasuoka static void 18330fbf3537Syasuoka npppd_reload0(npppd *_this) 18340fbf3537Syasuoka { 1835821f7c56Syasuoka int i; 1836821f7c56Syasuoka 18370fbf3537Syasuoka npppd_reload_config(_this); 18380fbf3537Syasuoka #ifdef USE_NPPPD_ARP 18390fbf3537Syasuoka arp_set_strictintfnetwork(npppd_config_str_equali(_this, "arpd.strictintfnetwork", "true", ARPD_STRICTINTFNETWORK_DEFAULT)); 18400fbf3537Syasuoka if (npppd_config_str_equali(_this, "arpd.enabled", "true", ARPD_DEFAULT) == 1) 18410fbf3537Syasuoka arp_sock_init(); 18420fbf3537Syasuoka else 18430fbf3537Syasuoka arp_sock_fini(); 18440fbf3537Syasuoka #endif 18450fbf3537Syasuoka npppd_modules_reload(_this); 18460fbf3537Syasuoka npppd_ifaces_load_config(_this); 1847821f7c56Syasuoka npppd_update_pool_reference(_this); 18480fbf3537Syasuoka npppd_auth_finalizer_periodic(_this); 1849821f7c56Syasuoka 1850821f7c56Syasuoka for (i = 0; i < countof(_this->iface); i++) { 1851821f7c56Syasuoka if (_this->iface[i].initialized != 0 && 1852821f7c56Syasuoka _this->iface[i].started == 0) 1853821f7c56Syasuoka npppd_iface_start(&_this->iface[i]); 1854821f7c56Syasuoka } 1855821f7c56Syasuoka } 1856821f7c56Syasuoka 1857821f7c56Syasuoka static void 1858821f7c56Syasuoka npppd_update_pool_reference(npppd *_this) 1859821f7c56Syasuoka { 1860821f7c56Syasuoka int i, j; 1861821f7c56Syasuoka /* update iface to pool reference */ 1862821f7c56Syasuoka for (i = 0; i < countof(_this->iface_pool); i++) { 1863821f7c56Syasuoka _this->iface_pool[i] = NULL; 1864821f7c56Syasuoka if (_this->iface[i].initialized == 0) 1865821f7c56Syasuoka continue; 1866821f7c56Syasuoka if (_this->iface[i].ipcpconf == NULL) 1867821f7c56Syasuoka continue; /* no IPCP for this interface */ 1868821f7c56Syasuoka 1869821f7c56Syasuoka for (j = 0; j < countof(_this->pool); j++) { 1870821f7c56Syasuoka if (_this->pool[j].initialized == 0) 1871821f7c56Syasuoka continue; 1872821f7c56Syasuoka if (strcmp(_this->iface[i].ipcpconf->name, 1873821f7c56Syasuoka _this->pool[j].ipcp_name) == 0) { 1874821f7c56Syasuoka /* found the ipcp that has the pool */ 1875821f7c56Syasuoka _this->iface_pool[i] = &_this->pool[j]; 1876821f7c56Syasuoka break; 1877821f7c56Syasuoka } 1878821f7c56Syasuoka } 1879821f7c56Syasuoka } 18800fbf3537Syasuoka } 18810fbf3537Syasuoka 18820fbf3537Syasuoka /*********************************************************************** 1883f0a4e295Syasuoka * Signal handlers 18840fbf3537Syasuoka ***********************************************************************/ 18850fbf3537Syasuoka static void 18860fbf3537Syasuoka npppd_on_sighup(int fd, short ev_type, void *ctx) 18870fbf3537Syasuoka { 18880fbf3537Syasuoka npppd *_this; 18890fbf3537Syasuoka 18900fbf3537Syasuoka _this = ctx; 18910fbf3537Syasuoka #ifndef NO_DELAYED_RELOAD 18920fbf3537Syasuoka if (_this->delayed_reload > 0) 18930fbf3537Syasuoka _this->reloading_count = _this->delayed_reload; 18940fbf3537Syasuoka else 18950fbf3537Syasuoka #endif 18960fbf3537Syasuoka npppd_reload0(_this); 18970fbf3537Syasuoka } 18980fbf3537Syasuoka 18990fbf3537Syasuoka static void 19000fbf3537Syasuoka npppd_on_sigterm(int fd, short ev_type, void *ctx) 19010fbf3537Syasuoka { 19020fbf3537Syasuoka npppd *_this; 19030fbf3537Syasuoka 19040fbf3537Syasuoka _this = ctx; 19050fbf3537Syasuoka npppd_stop(_this); 19060fbf3537Syasuoka } 19070fbf3537Syasuoka 19080fbf3537Syasuoka static void 19090fbf3537Syasuoka npppd_on_sigint(int fd, short ev_type, void *ctx) 19100fbf3537Syasuoka { 19110fbf3537Syasuoka npppd *_this; 19120fbf3537Syasuoka 19130fbf3537Syasuoka _this = ctx; 19140fbf3537Syasuoka npppd_stop(_this); 19150fbf3537Syasuoka } 19160fbf3537Syasuoka 19175fefcc09Syasuoka static void 19185fefcc09Syasuoka npppd_on_sigchld(int fd, short ev_type, void *ctx) 19195fefcc09Syasuoka { 19205fefcc09Syasuoka int status; 19215fefcc09Syasuoka pid_t wpid; 19225fefcc09Syasuoka npppd *_this; 19235fefcc09Syasuoka 19245fefcc09Syasuoka _this = ctx; 19255fefcc09Syasuoka wpid = privsep_priv_pid(); 19265fefcc09Syasuoka if (wait4(wpid, &status, WNOHANG, NULL) == wpid) { 19275fefcc09Syasuoka if (WIFSIGNALED(status)) 19285fefcc09Syasuoka log_printf(LOG_WARNING, 19299a200ddfSyasuoka "privileged process exits abnormaly. signal=%d", 19305fefcc09Syasuoka WTERMSIG(status)); 19315fefcc09Syasuoka else 19325fefcc09Syasuoka log_printf(LOG_WARNING, 19339a200ddfSyasuoka "privileged process exits abnormaly. status=%d", 19345fefcc09Syasuoka WEXITSTATUS(status)); 19355fefcc09Syasuoka _this->stop_by_error = 1; 19365fefcc09Syasuoka npppd_stop(_this); 19375fefcc09Syasuoka } 19385fefcc09Syasuoka } 19390fbf3537Syasuoka /*********************************************************************** 1940f0a4e295Syasuoka * Miscellaneous functions 19410fbf3537Syasuoka ***********************************************************************/ 19420fbf3537Syasuoka static uint32_t 19430fbf3537Syasuoka str_hash(const void *ptr, int sz) 19440fbf3537Syasuoka { 19450fbf3537Syasuoka uint32_t hash = 0; 19460fbf3537Syasuoka int i, len; 19470fbf3537Syasuoka const char *str; 19480fbf3537Syasuoka 19490fbf3537Syasuoka str = ptr; 19500fbf3537Syasuoka len = strlen(str); 19510fbf3537Syasuoka for (i = 0; i < len; i++) 19520fbf3537Syasuoka hash = hash*0x1F + str[i]; 19530fbf3537Syasuoka hash = (hash << 16) ^ (hash & 0xffff); 19540fbf3537Syasuoka 19550fbf3537Syasuoka return hash % sz; 19560fbf3537Syasuoka } 19570fbf3537Syasuoka 19580fbf3537Syasuoka /** 1959f0a4e295Syasuoka * Select a authentication realm that is for given {@link ::npppd_ppp PPP}. 1960f0a4e295Syasuoka * Return 0 on success. 19610fbf3537Syasuoka */ 19620fbf3537Syasuoka int 19630fbf3537Syasuoka npppd_ppp_bind_realm(npppd *_this, npppd_ppp *ppp, const char *username, int 19640fbf3537Syasuoka eap_required) 19650fbf3537Syasuoka { 1966821f7c56Syasuoka struct confbind *bind; 19670fbf3537Syasuoka npppd_auth_base *realm = NULL, *realm0 = NULL, *realm1 = NULL; 1968821f7c56Syasuoka char buf1[MAX_USERNAME_LENGTH]; 196934379bfeSyasuoka int lsuffix, lusername, lmax; 19700fbf3537Syasuoka 19710fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 19720fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 19730fbf3537Syasuoka NPPPD_ASSERT(username != NULL); 19740fbf3537Syasuoka 19750fbf3537Syasuoka /* 1976f0a4e295Syasuoka * If the PPP suffix is the longest, and the length of the suffix is 1977f0a4e295Syasuoka * same, select the first one. 19780fbf3537Syasuoka */ 19790fbf3537Syasuoka lusername = strlen(username); 19800fbf3537Syasuoka lmax = -1; 19810fbf3537Syasuoka realm = NULL; 19820fbf3537Syasuoka 1983821f7c56Syasuoka TAILQ_FOREACH(bind, &_this->conf.confbinds, entry) { 1984821f7c56Syasuoka if (strcmp(bind->tunnconf->name, ppp->phy_label) != 0) 19850fbf3537Syasuoka continue; 19860fbf3537Syasuoka 19870fbf3537Syasuoka realm0 = NULL; 19880fbf3537Syasuoka slist_itr_first(&_this->realms); 19890fbf3537Syasuoka while (slist_itr_has_next(&_this->realms)) { 19900fbf3537Syasuoka realm1 = slist_itr_next(&_this->realms); 19910fbf3537Syasuoka if (!npppd_auth_is_usable(realm1)) 19920fbf3537Syasuoka continue; 1993821f7c56Syasuoka if (eap_required && !npppd_auth_is_eap_capable(realm1)) 19940fbf3537Syasuoka continue; 1995821f7c56Syasuoka if (strcmp(npppd_auth_get_name(realm1), 1996821f7c56Syasuoka bind->authconf->name) == 0) { 19970fbf3537Syasuoka realm0 = realm1; 19980fbf3537Syasuoka break; 19990fbf3537Syasuoka } 20000fbf3537Syasuoka } 20010fbf3537Syasuoka if (realm0 == NULL) 20020fbf3537Syasuoka continue; 2003821f7c56Syasuoka 20040fbf3537Syasuoka lsuffix = strlen(npppd_auth_get_suffix(realm0)); 20050fbf3537Syasuoka if (lsuffix > lmax && 2006821f7c56Syasuoka (lsuffix == 0 || 2007821f7c56Syasuoka (lsuffix < lusername && strcmp(username + lusername 2008821f7c56Syasuoka - lsuffix, npppd_auth_get_suffix(realm0)) 2009821f7c56Syasuoka == 0))) { 20100fbf3537Syasuoka lmax = lsuffix; 20110fbf3537Syasuoka realm = realm0; 20120fbf3537Syasuoka } 20130fbf3537Syasuoka } 2014821f7c56Syasuoka 20150fbf3537Syasuoka if (realm == NULL) { 20160fbf3537Syasuoka log_printf(LOG_INFO, "user='%s' could not bind any realms", 20170fbf3537Syasuoka username); 20180fbf3537Syasuoka return 1; 20190fbf3537Syasuoka } 2020821f7c56Syasuoka NPPPD_DBG((LOG_DEBUG, "bind realm %s", npppd_auth_get_name(realm))); 20210fbf3537Syasuoka 20220fbf3537Syasuoka if (npppd_auth_get_type(realm) == NPPPD_AUTH_TYPE_LOCAL) 20230fbf3537Syasuoka /* hook the auto reload */ 20240fbf3537Syasuoka npppd_auth_get_user_password(realm, 20250fbf3537Syasuoka npppd_auth_username_for_auth(realm1, username, buf1), NULL, 20260fbf3537Syasuoka NULL); 20270fbf3537Syasuoka ppp->realm = realm; 20280fbf3537Syasuoka 20290fbf3537Syasuoka return 0; 20300fbf3537Syasuoka } 20310fbf3537Syasuoka 2032f0a4e295Syasuoka /** Is assigned realm a LOCAL authentication? */ 20330fbf3537Syasuoka int 20340fbf3537Syasuoka npppd_ppp_is_realm_local(npppd *_this, npppd_ppp *ppp) 20350fbf3537Syasuoka { 20360fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 20370fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 20380fbf3537Syasuoka 20390fbf3537Syasuoka if (ppp->realm == NULL) 20400fbf3537Syasuoka return 0; 20410fbf3537Syasuoka 20420fbf3537Syasuoka return (npppd_auth_get_type(ppp->realm) == NPPPD_AUTH_TYPE_LOCAL) 20430fbf3537Syasuoka ? 1 : 0; 20440fbf3537Syasuoka } 20450fbf3537Syasuoka 2046f0a4e295Syasuoka /** Is assigned realm a RADIUS authentication? */ 20470fbf3537Syasuoka int 20480fbf3537Syasuoka npppd_ppp_is_realm_radius(npppd *_this, npppd_ppp *ppp) 20490fbf3537Syasuoka { 20500fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 20510fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 20520fbf3537Syasuoka 20530fbf3537Syasuoka if (ppp->realm == NULL) 20540fbf3537Syasuoka return 0; 20550fbf3537Syasuoka 20560fbf3537Syasuoka return (npppd_auth_get_type(ppp->realm) == NPPPD_AUTH_TYPE_RADIUS) 20570fbf3537Syasuoka ? 1 : 0; 20580fbf3537Syasuoka } 20590fbf3537Syasuoka 2060f0a4e295Syasuoka /** Is assigned realm usable? */ 20610fbf3537Syasuoka int 20620fbf3537Syasuoka npppd_ppp_is_realm_ready(npppd *_this, npppd_ppp *ppp) 20630fbf3537Syasuoka { 20640fbf3537Syasuoka if (ppp->realm == NULL) 20650fbf3537Syasuoka return 0; 20660fbf3537Syasuoka 20670fbf3537Syasuoka return npppd_auth_is_ready(ppp->realm); 20680fbf3537Syasuoka } 20690fbf3537Syasuoka 2070f0a4e295Syasuoka /** Return the name of assigned realm */ 20710fbf3537Syasuoka const char * 20720fbf3537Syasuoka npppd_ppp_get_realm_name(npppd *_this, npppd_ppp *ppp) 20730fbf3537Syasuoka { 20740fbf3537Syasuoka if (ppp->realm == NULL) 20750fbf3537Syasuoka return "(none)"; 20760fbf3537Syasuoka return npppd_auth_get_name(ppp->realm); 20770fbf3537Syasuoka } 20780fbf3537Syasuoka 2079f0a4e295Syasuoka /** Return the interface name that bound given {@link ::npppd_ppp PPP} */ 20800fbf3537Syasuoka const char * 20810fbf3537Syasuoka npppd_ppp_get_iface_name(npppd *_this, npppd_ppp *ppp) 20820fbf3537Syasuoka { 20830fbf3537Syasuoka if (ppp == NULL || ppp->ifidx < 0) 20840fbf3537Syasuoka return "(not binding)"; 20850fbf3537Syasuoka return ppp_iface(ppp)->ifname; 20860fbf3537Syasuoka } 20870fbf3537Syasuoka 2088f0a4e295Syasuoka /** Is the interface usable? */ 20890fbf3537Syasuoka int 20900fbf3537Syasuoka npppd_ppp_iface_is_ready(npppd *_this, npppd_ppp *ppp) 20910fbf3537Syasuoka { 20920fbf3537Syasuoka return (npppd_iface_ip_is_ready(ppp_iface(ppp)) && 20930fbf3537Syasuoka ppp_ipcp(ppp) != NULL)? 1 : 0; 20940fbf3537Syasuoka } 20950fbf3537Syasuoka 2096f0a4e295Syasuoka /** Select a suitable interface for {@link :npppd_ppp PPP} and bind them */ 20970fbf3537Syasuoka int 20980fbf3537Syasuoka npppd_ppp_bind_iface(npppd *_this, npppd_ppp *ppp) 20990fbf3537Syasuoka { 2100821f7c56Syasuoka int i, ifidx; 2101821f7c56Syasuoka struct confbind *bind; 21020fbf3537Syasuoka 21030fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 21040fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 21050fbf3537Syasuoka 21060fbf3537Syasuoka if (ppp->ifidx >= 0) 21070fbf3537Syasuoka return 0; 21080fbf3537Syasuoka 2109821f7c56Syasuoka TAILQ_FOREACH(bind, &_this->conf.confbinds, entry) { 2110821f7c56Syasuoka if (strcmp(bind->tunnconf->name, ppp->phy_label) != 0) 2111821f7c56Syasuoka continue; 2112821f7c56Syasuoka if (ppp->realm == NULL) { 2113821f7c56Syasuoka if (bind->authconf == NULL) 2114821f7c56Syasuoka break; 2115821f7c56Syasuoka } else if (strcmp(bind->authconf->name, 2116821f7c56Syasuoka npppd_auth_get_name(ppp->realm)) == 0) 2117821f7c56Syasuoka break; 2118821f7c56Syasuoka } 2119821f7c56Syasuoka if (bind == NULL) 21200fbf3537Syasuoka return 1; 21210fbf3537Syasuoka 2122f0a4e295Syasuoka /* Search a interface */ 21230fbf3537Syasuoka ifidx = -1; 21240fbf3537Syasuoka for (i = 0; i < countof(_this->iface); i++) { 21250fbf3537Syasuoka if (_this->iface[i].initialized == 0) 21260fbf3537Syasuoka continue; 2127821f7c56Syasuoka if (strcmp(_this->iface[i].ifname, bind->iface->name) == 0) 21280fbf3537Syasuoka ifidx = i; 21290fbf3537Syasuoka } 21300fbf3537Syasuoka if (ifidx < 0) 21310fbf3537Syasuoka return 1; 21320fbf3537Syasuoka 2133e43db91eSyasuoka if (_this->conf.max_session > 0 && 2134*4080edd5Syasuoka _this->nsession >= _this->conf.max_session) { 21350fbf3537Syasuoka ppp_log(ppp, LOG_WARNING, 21360fbf3537Syasuoka "Number of sessions reaches out of the limit=%d", 2137e43db91eSyasuoka _this->conf.max_session); 21380fbf3537Syasuoka return 1; 21390fbf3537Syasuoka } 21400fbf3537Syasuoka ppp->ifidx = ifidx; 2141*4080edd5Syasuoka _this->nsession++; 21420fbf3537Syasuoka 21430fbf3537Syasuoka return 0; 21440fbf3537Syasuoka } 21450fbf3537Syasuoka 2146f0a4e295Syasuoka /** Unbind the interface from the {@link ::npppd_ppp PPP} */ 21470fbf3537Syasuoka void 21480fbf3537Syasuoka npppd_ppp_unbind_iface(npppd *_this, npppd_ppp *ppp) 21490fbf3537Syasuoka { 2150*4080edd5Syasuoka if (ppp->ifidx >= 0) 2151821f7c56Syasuoka _this->nsession--; 21520fbf3537Syasuoka ppp->ifidx = -1; 21530fbf3537Syasuoka } 21540fbf3537Syasuoka 21550fbf3537Syasuoka static int 21560fbf3537Syasuoka npppd_rd_walktree_delete(struct radish_head *rh) 21570fbf3537Syasuoka { 21580fbf3537Syasuoka void *dummy; 21590fbf3537Syasuoka struct radish *rd; 21600fbf3537Syasuoka slist list; 21610fbf3537Syasuoka 21620fbf3537Syasuoka slist_init(&list); 21630fbf3537Syasuoka if (rd2slist(rh, &list) != 0) 21640fbf3537Syasuoka return 1; 21650fbf3537Syasuoka for (slist_itr_first(&list); slist_itr_has_next(&list);) { 21660fbf3537Syasuoka rd = slist_itr_next(&list); 21670fbf3537Syasuoka rd_delete(rd->rd_route, rd->rd_mask, rh, &dummy); 21680fbf3537Syasuoka } 21690fbf3537Syasuoka slist_fini(&list); 21700fbf3537Syasuoka 21710fbf3537Syasuoka free(rh); 21720fbf3537Syasuoka 21730fbf3537Syasuoka return 0; 21740fbf3537Syasuoka } 21750fbf3537Syasuoka 21760fbf3537Syasuoka #ifdef USE_NPPPD_RADIUS 2177f0a4e295Syasuoka /** 2178f0a4e295Syasuoka * Return radius_req_setting for the given {@link ::npppd_ppp PPP}. 2179f0a4e295Syasuoka * @return return NULL if no usable RADIUS setting. 2180f0a4e295Syasuoka */ 21810fbf3537Syasuoka void * 21828daf7599Syasuoka npppd_get_radius_auth_setting(npppd *_this, npppd_ppp *ppp) 21830fbf3537Syasuoka { 21840fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 21850fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 21860fbf3537Syasuoka 21870fbf3537Syasuoka if (ppp->realm == NULL) 21880fbf3537Syasuoka return NULL; 21890fbf3537Syasuoka if (!npppd_ppp_is_realm_radius(_this, ppp)) 21900fbf3537Syasuoka return NULL; 21910fbf3537Syasuoka 21928daf7599Syasuoka return npppd_auth_radius_get_radius_auth_setting(ppp->realm); 21930fbf3537Syasuoka } 21940fbf3537Syasuoka #endif 21950fbf3537Syasuoka 2196f0a4e295Syasuoka /** Finalize authentication realm */ 21970fbf3537Syasuoka static void 21980fbf3537Syasuoka npppd_auth_finalizer_periodic(npppd *_this) 21990fbf3537Syasuoka { 22000fbf3537Syasuoka int ndisposing = 0, refcnt; 22010fbf3537Syasuoka slist users; 22020fbf3537Syasuoka npppd_auth_base *auth_base; 22030fbf3537Syasuoka npppd_ppp *ppp; 22040fbf3537Syasuoka 22050fbf3537Syasuoka /* 2206f0a4e295Syasuoka * For the realms with disposing flag, if the realm has assigned PPPs, 2207f0a4e295Syasuoka * disconnect them. If all PPPs are disconnected then free the realm. 22080fbf3537Syasuoka */ 22090fbf3537Syasuoka NPPPD_DBG((DEBUG_LEVEL_2, "%s() called", __func__)); 22100fbf3537Syasuoka slist_itr_first(&_this->realms); 22110fbf3537Syasuoka while (slist_itr_has_next(&_this->realms)) { 22120fbf3537Syasuoka auth_base = slist_itr_next(&_this->realms); 22130fbf3537Syasuoka if (!npppd_auth_is_disposing(auth_base)) 22140fbf3537Syasuoka continue; 22150fbf3537Syasuoka refcnt = 0; 22160fbf3537Syasuoka if (ndisposing++ == 0) { 22170fbf3537Syasuoka slist_init(&users); 22180fbf3537Syasuoka if (npppd_get_all_users(_this, &users) != 0) { 22190fbf3537Syasuoka log_printf(LOG_WARNING, 22200fbf3537Syasuoka "npppd_get_all_users() failed in %s(): %m", 22210fbf3537Syasuoka __func__); 22220fbf3537Syasuoka break; 22230fbf3537Syasuoka } 22240fbf3537Syasuoka } 22250fbf3537Syasuoka slist_itr_first(&users); 22260fbf3537Syasuoka while (slist_itr_has_next(&users)) { 22270fbf3537Syasuoka ppp = slist_itr_next(&users); 22280fbf3537Syasuoka if (ppp->realm == auth_base) { 22290fbf3537Syasuoka refcnt++; 22300fbf3537Syasuoka ppp_stop(ppp, NULL); 22310fbf3537Syasuoka ppp_log(ppp, LOG_INFO, 22320fbf3537Syasuoka "Stop request by npppd. Binding " 22330fbf3537Syasuoka "authentication realm is disposing. " 22340fbf3537Syasuoka "realm=%s", npppd_auth_get_name(auth_base)); 22350fbf3537Syasuoka slist_itr_remove(&users); 22360fbf3537Syasuoka } 22370fbf3537Syasuoka } 22388daf7599Syasuoka if (refcnt == 0) { 22390fbf3537Syasuoka npppd_auth_destroy(auth_base); 22408daf7599Syasuoka slist_itr_remove(&_this->realms); 22418daf7599Syasuoka } 22420fbf3537Syasuoka } 22430fbf3537Syasuoka if (ndisposing > 0) 22440fbf3537Syasuoka slist_fini(&users); 22450fbf3537Syasuoka } 22460fbf3537Syasuoka 2247f0a4e295Syasuoka /** compare sockaddr_npppd. return 0 if matches */ 22480fbf3537Syasuoka int 22490fbf3537Syasuoka sockaddr_npppd_match(void *a0, void *b0) 22500fbf3537Syasuoka { 22510fbf3537Syasuoka struct sockaddr_npppd *a, *b; 22520fbf3537Syasuoka 22530fbf3537Syasuoka a = a0; 22540fbf3537Syasuoka b = b0; 22550fbf3537Syasuoka 22560fbf3537Syasuoka return (a->snp_addr.s_addr == b->snp_addr.s_addr)? 1 : 0; 22570fbf3537Syasuoka } 22580fbf3537Syasuoka 22590fbf3537Syasuoka /** 2260f0a4e295Syasuoka * This function stores the username for authentication to the space specified 2261f0a4e295Syasuoka * by username_buffer and returns it. username_buffer must have space more 2262f0a4e295Syasuoka * than MAX_USERNAME_LENGTH. 22630fbf3537Syasuoka */ 22640fbf3537Syasuoka const char * 22650fbf3537Syasuoka npppd_ppp_get_username_for_auth(npppd *_this, npppd_ppp *ppp, 22660fbf3537Syasuoka const char *username, char *username_buffer) 22670fbf3537Syasuoka { 22680fbf3537Syasuoka NPPPD_ASSERT(_this != NULL); 22690fbf3537Syasuoka NPPPD_ASSERT(ppp != NULL); 22700fbf3537Syasuoka NPPPD_ASSERT(ppp->realm != NULL); 22710fbf3537Syasuoka 22720fbf3537Syasuoka return npppd_auth_username_for_auth(ppp->realm, username, 22730fbf3537Syasuoka username_buffer); 22740fbf3537Syasuoka } 22750fbf3537Syasuoka 2276363e4d4bSyasuoka const char * 2277821f7c56Syasuoka npppd_tunnel_protocol_name(int tunn_protocol) 2278363e4d4bSyasuoka { 2279821f7c56Syasuoka switch (tunn_protocol) { 2280821f7c56Syasuoka case NPPPD_TUNNEL_NONE: 2281363e4d4bSyasuoka return "None"; 2282821f7c56Syasuoka case NPPPD_TUNNEL_L2TP: 2283363e4d4bSyasuoka return "L2TP"; 2284821f7c56Syasuoka case NPPPD_TUNNEL_PPTP: 2285363e4d4bSyasuoka return "PPTP"; 2286821f7c56Syasuoka case NPPPD_TUNNEL_PPPOE: 2287363e4d4bSyasuoka return "PPPoE"; 2288821f7c56Syasuoka case NPPPD_TUNNEL_SSTP: 2289363e4d4bSyasuoka return "SSTP"; 2290363e4d4bSyasuoka } 2291363e4d4bSyasuoka 2292363e4d4bSyasuoka return "Error"; 2293363e4d4bSyasuoka } 2294821f7c56Syasuoka 2295821f7c56Syasuoka const char * 2296821f7c56Syasuoka npppd_ppp_tunnel_protocol_name(npppd *_this, npppd_ppp *ppp) 2297821f7c56Syasuoka { 2298821f7c56Syasuoka return npppd_tunnel_protocol_name(ppp->tunnel_type); 2299821f7c56Syasuoka } 2300821f7c56Syasuoka 2301821f7c56Syasuoka struct tunnconf * 2302821f7c56Syasuoka npppd_get_tunnconf(npppd *_this, const char *name) 2303821f7c56Syasuoka { 2304821f7c56Syasuoka struct tunnconf *conf; 2305821f7c56Syasuoka 2306821f7c56Syasuoka TAILQ_FOREACH(conf, &_this->conf.tunnconfs, entry) { 2307821f7c56Syasuoka if (strcmp(conf->name, name) == 0) 2308821f7c56Syasuoka return conf; 2309821f7c56Syasuoka } 2310821f7c56Syasuoka 2311821f7c56Syasuoka return NULL; 2312821f7c56Syasuoka } 2313821f7c56Syasuoka 231434682664Syasuoka void 231534682664Syasuoka npppd_on_ppp_start(npppd *_this, npppd_ppp *ppp) 231634682664Syasuoka { 231734682664Syasuoka struct ctl_conn *c; 231834682664Syasuoka 231934682664Syasuoka TAILQ_FOREACH(c, &ctl_conns, entry) { 232034682664Syasuoka if (npppd_ctl_add_started_ppp_id(c->ctx, ppp->id) == 0) { 232134682664Syasuoka npppd_ctl_imsg_compose(c->ctx, &c->iev.ibuf); 232234682664Syasuoka imsg_event_add(&c->iev); 232334682664Syasuoka } 232434682664Syasuoka } 232534682664Syasuoka } 232634682664Syasuoka 232734682664Syasuoka void 232834682664Syasuoka npppd_on_ppp_stop(npppd *_this, npppd_ppp *ppp) 232934682664Syasuoka { 233034682664Syasuoka struct ctl_conn *c; 233134682664Syasuoka 233234682664Syasuoka TAILQ_FOREACH(c, &ctl_conns, entry) { 233334682664Syasuoka if (npppd_ctl_add_stopped_ppp(c->ctx, ppp) == 0) { 233434682664Syasuoka npppd_ctl_imsg_compose(c->ctx, &c->iev.ibuf); 233534682664Syasuoka imsg_event_add(&c->iev); 233634682664Syasuoka } 233734682664Syasuoka } 233834682664Syasuoka } 233934682664Syasuoka 234034682664Syasuoka void 234134682664Syasuoka imsg_event_add(struct imsgev *iev) 234234682664Syasuoka { 234334682664Syasuoka iev->events = EV_READ; 234434682664Syasuoka if (iev->ibuf.w.queued) 234534682664Syasuoka iev->events |= EV_WRITE; 234634682664Syasuoka 234734682664Syasuoka event_del(&iev->ev); 234834682664Syasuoka event_set(&iev->ev, iev->ibuf.fd, iev->events, iev->handler, iev->data); 234934682664Syasuoka event_add(&iev->ev, NULL); 235034682664Syasuoka } 2351