1214117Sjamie/*- 2223190Sjamie * Copyright (c) 2011 James Gritton 3214117Sjamie * All rights reserved. 4214117Sjamie * 5214117Sjamie * Redistribution and use in source and binary forms, with or without 6214117Sjamie * modification, are permitted provided that the following conditions 7214117Sjamie * are met: 8214117Sjamie * 1. Redistributions of source code must retain the above copyright 9214117Sjamie * notice, this list of conditions and the following disclaimer. 10214117Sjamie * 2. Redistributions in binary form must reproduce the above copyright 11214117Sjamie * notice, this list of conditions and the following disclaimer in the 12214117Sjamie * documentation and/or other materials provided with the distribution. 13214117Sjamie * 14214117Sjamie * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15214117Sjamie * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16214117Sjamie * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17214117Sjamie * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18214117Sjamie * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19214117Sjamie * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20214117Sjamie * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21214117Sjamie * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22214117Sjamie * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23214117Sjamie * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24214117Sjamie * SUCH DAMAGE. 25214117Sjamie */ 26214117Sjamie 27214117Sjamie#include <sys/cdefs.h> 28214117Sjamie__FBSDID("$FreeBSD: releng/10.3/usr.sbin/jail/command.c 294484 2016-01-21 04:37:16Z jamie $"); 29214117Sjamie 30214117Sjamie#include <sys/types.h> 31214117Sjamie#include <sys/event.h> 32214805Sjamie#include <sys/mount.h> 33214117Sjamie#include <sys/stat.h> 34214117Sjamie#include <sys/sysctl.h> 35214117Sjamie#include <sys/user.h> 36214117Sjamie#include <sys/wait.h> 37214117Sjamie 38214117Sjamie#include <err.h> 39214117Sjamie#include <errno.h> 40214117Sjamie#include <fcntl.h> 41214117Sjamie#include <kvm.h> 42214117Sjamie#include <login_cap.h> 43214117Sjamie#include <paths.h> 44214117Sjamie#include <pwd.h> 45214117Sjamie#include <signal.h> 46214117Sjamie#include <stdio.h> 47214117Sjamie#include <stdlib.h> 48214117Sjamie#include <string.h> 49214117Sjamie#include <unistd.h> 50214117Sjamie 51214117Sjamie#include "jailp.h" 52214117Sjamie 53214117Sjamie#define DEFAULT_STOP_TIMEOUT 10 54214117Sjamie#define PHASH_SIZE 256 55214117Sjamie 56214117SjamieLIST_HEAD(phhead, phash); 57214117Sjamie 58214117Sjamiestruct phash { 59214117Sjamie LIST_ENTRY(phash) le; 60214117Sjamie struct cfjail *j; 61214117Sjamie pid_t pid; 62214117Sjamie}; 63214117Sjamie 64216367Sjamieint paralimit = -1; 65216367Sjamie 66214117Sjamieextern char **environ; 67214117Sjamie 68223189Sjamiestatic int run_command(struct cfjail *j); 69246804Sjamiestatic int add_proc(struct cfjail *j, pid_t pid); 70214117Sjamiestatic void clear_procs(struct cfjail *j); 71214117Sjamiestatic struct cfjail *find_proc(pid_t pid); 72216367Sjamiestatic int term_procs(struct cfjail *j); 73223189Sjamiestatic int get_user_info(struct cfjail *j, const char *username, 74223189Sjamie const struct passwd **pwdp, login_cap_t **lcapp); 75214797Sjamiestatic int check_path(struct cfjail *j, const char *pname, const char *path, 76214805Sjamie int isfile, const char *umount_type); 77214117Sjamie 78214117Sjamiestatic struct cfjails sleeping = TAILQ_HEAD_INITIALIZER(sleeping); 79214117Sjamiestatic struct cfjails runnable = TAILQ_HEAD_INITIALIZER(runnable); 80223368Sjamiestatic struct cfstring dummystring = { .len = 1 }; 81214117Sjamiestatic struct phhead phash[PHASH_SIZE]; 82214117Sjamiestatic int kq; 83214117Sjamie 84214117Sjamie/* 85223189Sjamie * Run the next command associated with a jail. 86214117Sjamie */ 87214117Sjamieint 88223189Sjamienext_command(struct cfjail *j) 89214117Sjamie{ 90223189Sjamie enum intparam comparam; 91248854Sjamie int create_failed, stopping; 92223189Sjamie 93223442Sjamie if (paralimit == 0) { 94223442Sjamie requeue(j, &runnable); 95223442Sjamie return 1; 96223442Sjamie } 97223189Sjamie create_failed = (j->flags & (JF_STOP | JF_FAILED)) == JF_FAILED; 98248854Sjamie stopping = (j->flags & JF_STOP) != 0; 99223442Sjamie comparam = *j->comparam; 100223442Sjamie for (;;) { 101223189Sjamie if (j->comstring == NULL) { 102223442Sjamie j->comparam += create_failed ? -1 : 1; 103223442Sjamie switch ((comparam = *j->comparam)) { 104234988Sjamie case IP__NULL: 105223442Sjamie return 0; 106223189Sjamie case IP_MOUNT_DEVFS: 107223189Sjamie if (!bool_param(j->intparams[IP_MOUNT_DEVFS])) 108223189Sjamie continue; 109256387Shrs j->comstring = &dummystring; 110256387Shrs break; 111256387Shrs case IP_MOUNT_FDESCFS: 112256387Shrs if (!bool_param(j->intparams[IP_MOUNT_FDESCFS])) 113256387Shrs continue; 114256387Shrs j->comstring = &dummystring; 115278484Sjamie break; 116278484Sjamie case IP_MOUNT_PROCFS: 117278484Sjamie if (!bool_param(j->intparams[IP_MOUNT_PROCFS])) 118278484Sjamie continue; 119278484Sjamie j->comstring = &dummystring; 120278484Sjamie break; 121223263Sjamie case IP__OP: 122223189Sjamie case IP_STOP_TIMEOUT: 123223189Sjamie j->comstring = &dummystring; 124223189Sjamie break; 125223189Sjamie default: 126223189Sjamie if (j->intparams[comparam] == NULL) 127223189Sjamie continue; 128248854Sjamie j->comstring = create_failed || (stopping && 129248854Sjamie (j->intparams[comparam]->flags & PF_REV)) 130223189Sjamie ? TAILQ_LAST(&j->intparams[comparam]->val, 131223189Sjamie cfstrings) 132223189Sjamie : TAILQ_FIRST(&j->intparams[comparam]->val); 133223189Sjamie } 134223442Sjamie } else { 135223442Sjamie j->comstring = j->comstring == &dummystring ? NULL : 136248854Sjamie create_failed || (stopping && 137248854Sjamie (j->intparams[comparam]->flags & PF_REV)) 138223442Sjamie ? TAILQ_PREV(j->comstring, cfstrings, tq) 139223442Sjamie : TAILQ_NEXT(j->comstring, tq); 140223189Sjamie } 141223442Sjamie if (j->comstring == NULL || j->comstring->len == 0 || 142223442Sjamie (create_failed && (comparam == IP_EXEC_PRESTART || 143223442Sjamie comparam == IP_EXEC_START || comparam == IP_COMMAND || 144223442Sjamie comparam == IP_EXEC_POSTSTART))) 145223442Sjamie continue; 146223442Sjamie switch (run_command(j)) { 147223442Sjamie case -1: 148223442Sjamie failed(j); 149223442Sjamie /* FALLTHROUGH */ 150223442Sjamie case 1: 151223442Sjamie return 1; 152223189Sjamie } 153223189Sjamie } 154223189Sjamie} 155223189Sjamie 156223189Sjamie/* 157223189Sjamie * Check command exit status 158223189Sjamie */ 159223189Sjamieint 160223189Sjamiefinish_command(struct cfjail *j) 161223189Sjamie{ 162223189Sjamie int error; 163223189Sjamie 164223189Sjamie if (!(j->flags & JF_SLEEPQ)) 165223189Sjamie return 0; 166223189Sjamie j->flags &= ~JF_SLEEPQ; 167223827Sjamie if (*j->comparam == IP_STOP_TIMEOUT) 168223827Sjamie { 169223827Sjamie j->flags &= ~JF_TIMEOUT; 170223827Sjamie j->pstatus = 0; 171223827Sjamie return 0; 172223189Sjamie } 173223827Sjamie paralimit++; 174223827Sjamie if (!TAILQ_EMPTY(&runnable)) 175223827Sjamie requeue(TAILQ_FIRST(&runnable), &ready); 176223189Sjamie error = 0; 177223189Sjamie if (j->flags & JF_TIMEOUT) { 178223189Sjamie j->flags &= ~JF_TIMEOUT; 179223189Sjamie if (*j->comparam != IP_STOP_TIMEOUT) { 180223189Sjamie jail_warnx(j, "%s: timed out", j->comline); 181223189Sjamie failed(j); 182223189Sjamie error = -1; 183223189Sjamie } else if (verbose > 0) 184223189Sjamie jail_note(j, "timed out\n"); 185223189Sjamie } else if (j->pstatus != 0) { 186223189Sjamie if (WIFSIGNALED(j->pstatus)) 187223189Sjamie jail_warnx(j, "%s: exited on signal %d", 188223189Sjamie j->comline, WTERMSIG(j->pstatus)); 189223189Sjamie else 190223189Sjamie jail_warnx(j, "%s: failed", j->comline); 191223189Sjamie j->pstatus = 0; 192223189Sjamie failed(j); 193223189Sjamie error = -1; 194223189Sjamie } 195223189Sjamie free(j->comline); 196223189Sjamie j->comline = NULL; 197223189Sjamie return error; 198223189Sjamie} 199223189Sjamie 200223189Sjamie/* 201223442Sjamie * Check for finished processes or timeouts. 202223189Sjamie */ 203223189Sjamiestruct cfjail * 204223189Sjamienext_proc(int nonblock) 205223189Sjamie{ 206223189Sjamie struct kevent ke; 207223189Sjamie struct timespec ts; 208223189Sjamie struct timespec *tsp; 209223189Sjamie struct cfjail *j; 210223189Sjamie 211223189Sjamie if (!TAILQ_EMPTY(&sleeping)) { 212223189Sjamie again: 213223189Sjamie tsp = NULL; 214223189Sjamie if ((j = TAILQ_FIRST(&sleeping)) && j->timeout.tv_sec) { 215223189Sjamie clock_gettime(CLOCK_REALTIME, &ts); 216223189Sjamie ts.tv_sec = j->timeout.tv_sec - ts.tv_sec; 217223189Sjamie ts.tv_nsec = j->timeout.tv_nsec - ts.tv_nsec; 218223189Sjamie if (ts.tv_nsec < 0) { 219223189Sjamie ts.tv_sec--; 220223189Sjamie ts.tv_nsec += 1000000000; 221223189Sjamie } 222223189Sjamie if (ts.tv_sec < 0 || 223223189Sjamie (ts.tv_sec == 0 && ts.tv_nsec == 0)) { 224223189Sjamie j->flags |= JF_TIMEOUT; 225223189Sjamie clear_procs(j); 226223189Sjamie return j; 227223189Sjamie } 228223189Sjamie tsp = &ts; 229223189Sjamie } 230223189Sjamie if (nonblock) { 231223189Sjamie ts.tv_sec = 0; 232223189Sjamie ts.tv_nsec = 0; 233223189Sjamie tsp = &ts; 234223189Sjamie } 235223189Sjamie switch (kevent(kq, NULL, 0, &ke, 1, tsp)) { 236223189Sjamie case -1: 237223189Sjamie if (errno != EINTR) 238223189Sjamie err(1, "kevent"); 239223189Sjamie goto again; 240223189Sjamie case 0: 241223189Sjamie if (!nonblock) { 242223189Sjamie j = TAILQ_FIRST(&sleeping); 243223189Sjamie j->flags |= JF_TIMEOUT; 244223189Sjamie clear_procs(j); 245223189Sjamie return j; 246223189Sjamie } 247223189Sjamie break; 248223189Sjamie case 1: 249223189Sjamie (void)waitpid(ke.ident, NULL, WNOHANG); 250223189Sjamie if ((j = find_proc(ke.ident))) { 251223189Sjamie j->pstatus = ke.data; 252223189Sjamie return j; 253223189Sjamie } 254223189Sjamie goto again; 255223189Sjamie } 256223189Sjamie } 257223189Sjamie return NULL; 258223189Sjamie} 259223189Sjamie 260223189Sjamie/* 261223189Sjamie * Run a single command for a jail, possible inside the jail. 262223189Sjamie */ 263236198Sjamiestatic int 264223189Sjamierun_command(struct cfjail *j) 265223189Sjamie{ 266214117Sjamie const struct passwd *pwd; 267223189Sjamie const struct cfstring *comstring, *s; 268214117Sjamie login_cap_t *lcap; 269214117Sjamie char **argv; 270223351Sjamie char *cs, *comcs, *devpath; 271214117Sjamie const char *jidstr, *conslog, *path, *ruleset, *term, *username; 272223189Sjamie enum intparam comparam; 273214117Sjamie size_t comlen; 274214117Sjamie pid_t pid; 275214117Sjamie int argc, bg, clean, consfd, down, fib, i, injail, sjuser, timeout; 276223351Sjamie#if defined(INET) || defined(INET6) 277269805Ssmh char *addr, *extrap, *p, *val; 278223351Sjamie#endif 279214117Sjamie 280214117Sjamie static char *cleanenv; 281214117Sjamie 282223263Sjamie /* Perform some operations that aren't actually commands */ 283223263Sjamie comparam = *j->comparam; 284223263Sjamie down = j->flags & (JF_STOP | JF_FAILED); 285223263Sjamie switch (comparam) { 286223263Sjamie case IP_STOP_TIMEOUT: 287223263Sjamie return term_procs(j); 288223263Sjamie 289223263Sjamie case IP__OP: 290223263Sjamie if (down) { 291231238Sjamie if (jail_remove(j->jid) < 0 && errno == EPERM) { 292231238Sjamie jail_warnx(j, "jail_remove: %s", 293231238Sjamie strerror(errno)); 294231238Sjamie return -1; 295231238Sjamie } 296223827Sjamie if (verbose > 0 || (verbose == 0 && (j->flags & JF_STOP 297223263Sjamie ? note_remove : j->name != NULL))) 298223263Sjamie jail_note(j, "removed\n"); 299223263Sjamie j->jid = -1; 300223263Sjamie if (j->flags & JF_STOP) 301223263Sjamie dep_done(j, DF_LIGHT); 302223263Sjamie else 303223263Sjamie j->flags &= ~JF_PERSIST; 304223263Sjamie } else { 305223442Sjamie if (create_jail(j) < 0) 306223263Sjamie return -1; 307236198Sjamie if (iflag) 308236198Sjamie printf("%d\n", j->jid); 309223263Sjamie if (verbose >= 0 && (j->name || verbose > 0)) 310223263Sjamie jail_note(j, "created\n"); 311223263Sjamie dep_done(j, DF_LIGHT); 312223263Sjamie } 313223442Sjamie return 0; 314223327Sjamie 315223327Sjamie default: ; 316223263Sjamie } 317214117Sjamie /* 318214117Sjamie * Collect exec arguments. Internal commands for network and 319216367Sjamie * mounting build their own argument lists. 320214117Sjamie */ 321223189Sjamie comstring = j->comstring; 322223189Sjamie bg = 0; 323216367Sjamie switch (comparam) { 324223351Sjamie#ifdef INET 325216367Sjamie case IP__IP4_IFADDR: 326269805Ssmh argc = 0; 327269805Ssmh val = alloca(strlen(comstring->s) + 1); 328269805Ssmh strcpy(val, comstring->s); 329269805Ssmh cs = val; 330269805Ssmh extrap = NULL; 331269805Ssmh while ((p = strchr(cs, ' ')) != NULL && strlen(p) > 1) { 332269805Ssmh if (extrap == NULL) { 333269805Ssmh *p = '\0'; 334269805Ssmh extrap = p + 1; 335269805Ssmh } 336269805Ssmh cs = p + 1; 337269805Ssmh argc++; 338269805Ssmh } 339269805Ssmh 340269805Ssmh argv = alloca((8 + argc) * sizeof(char *)); 341214117Sjamie *(const char **)&argv[0] = _PATH_IFCONFIG; 342269805Ssmh if ((cs = strchr(val, '|'))) { 343269805Ssmh argv[1] = alloca(cs - val + 1); 344269805Ssmh strlcpy(argv[1], val, cs - val + 1); 345214117Sjamie addr = cs + 1; 346214117Sjamie } else { 347214117Sjamie *(const char **)&argv[1] = 348214117Sjamie string_param(j->intparams[IP_INTERFACE]); 349269805Ssmh addr = val; 350214117Sjamie } 351214117Sjamie *(const char **)&argv[2] = "inet"; 352214117Sjamie if (!(cs = strchr(addr, '/'))) { 353214117Sjamie argv[3] = addr; 354214117Sjamie *(const char **)&argv[4] = "netmask"; 355214117Sjamie *(const char **)&argv[5] = "255.255.255.255"; 356214117Sjamie argc = 6; 357214117Sjamie } else if (strchr(cs + 1, '.')) { 358214117Sjamie argv[3] = alloca(cs - addr + 1); 359214117Sjamie strlcpy(argv[3], addr, cs - addr + 1); 360214117Sjamie *(const char **)&argv[4] = "netmask"; 361214117Sjamie *(const char **)&argv[5] = cs + 1; 362214117Sjamie argc = 6; 363214117Sjamie } else { 364214117Sjamie argv[3] = addr; 365214117Sjamie argc = 4; 366214117Sjamie } 367269805Ssmh 368269805Ssmh if (!down) { 369269805Ssmh for (cs = strtok(extrap, " "); cs; cs = strtok(NULL, " ")) { 370269805Ssmh size_t len = strlen(cs) + 1; 371269805Ssmh argv[argc] = alloca(len); 372269805Ssmh strlcpy(argv[argc++], cs, len); 373269805Ssmh } 374269805Ssmh } 375269805Ssmh 376214117Sjamie *(const char **)&argv[argc] = down ? "-alias" : "alias"; 377214117Sjamie argv[argc + 1] = NULL; 378216367Sjamie break; 379223351Sjamie#endif 380216367Sjamie 381214117Sjamie#ifdef INET6 382216367Sjamie case IP__IP6_IFADDR: 383269805Ssmh argc = 0; 384269805Ssmh val = alloca(strlen(comstring->s) + 1); 385269805Ssmh strcpy(val, comstring->s); 386269805Ssmh cs = val; 387269805Ssmh extrap = NULL; 388269805Ssmh while ((p = strchr(cs, ' ')) != NULL && strlen(p) > 1) { 389269805Ssmh if (extrap == NULL) { 390269805Ssmh *p = '\0'; 391269805Ssmh extrap = p + 1; 392269805Ssmh } 393269805Ssmh cs = p + 1; 394269805Ssmh argc++; 395269805Ssmh } 396269805Ssmh 397269805Ssmh argv = alloca((8 + argc) * sizeof(char *)); 398214117Sjamie *(const char **)&argv[0] = _PATH_IFCONFIG; 399269805Ssmh if ((cs = strchr(val, '|'))) { 400269805Ssmh argv[1] = alloca(cs - val + 1); 401269805Ssmh strlcpy(argv[1], val, cs - val + 1); 402214117Sjamie addr = cs + 1; 403214117Sjamie } else { 404214117Sjamie *(const char **)&argv[1] = 405214117Sjamie string_param(j->intparams[IP_INTERFACE]); 406269805Ssmh addr = val; 407214117Sjamie } 408214117Sjamie *(const char **)&argv[2] = "inet6"; 409214117Sjamie argv[3] = addr; 410214117Sjamie if (!(cs = strchr(addr, '/'))) { 411214117Sjamie *(const char **)&argv[4] = "prefixlen"; 412214117Sjamie *(const char **)&argv[5] = "128"; 413214117Sjamie argc = 6; 414214117Sjamie } else 415214117Sjamie argc = 4; 416269805Ssmh 417269805Ssmh if (!down) { 418269805Ssmh for (cs = strtok(extrap, " "); cs; cs = strtok(NULL, " ")) { 419269805Ssmh size_t len = strlen(cs) + 1; 420269805Ssmh argv[argc] = alloca(len); 421269805Ssmh strlcpy(argv[argc++], cs, len); 422269805Ssmh } 423269805Ssmh } 424269805Ssmh 425214117Sjamie *(const char **)&argv[argc] = down ? "-alias" : "alias"; 426214117Sjamie argv[argc + 1] = NULL; 427216367Sjamie break; 428214117Sjamie#endif 429216367Sjamie 430216367Sjamie case IP_VNET_INTERFACE: 431214117Sjamie argv = alloca(5 * sizeof(char *)); 432214117Sjamie *(const char **)&argv[0] = _PATH_IFCONFIG; 433214117Sjamie argv[1] = comstring->s; 434214117Sjamie *(const char **)&argv[2] = down ? "-vnet" : "vnet"; 435214117Sjamie jidstr = string_param(j->intparams[KP_JID]); 436214117Sjamie *(const char **)&argv[3] = 437214117Sjamie jidstr ? jidstr : string_param(j->intparams[KP_NAME]); 438214117Sjamie argv[4] = NULL; 439216367Sjamie break; 440216367Sjamie 441216367Sjamie case IP_MOUNT: 442216367Sjamie case IP__MOUNT_FROM_FSTAB: 443214117Sjamie argv = alloca(8 * sizeof(char *)); 444214117Sjamie comcs = alloca(comstring->len + 1); 445214117Sjamie strcpy(comcs, comstring->s); 446214117Sjamie argc = 0; 447214117Sjamie for (cs = strtok(comcs, " \t\f\v\r\n"); cs && argc < 4; 448214117Sjamie cs = strtok(NULL, " \t\f\v\r\n")) 449214117Sjamie argv[argc++] = cs; 450214797Sjamie if (argc == 0) 451223189Sjamie return 0; 452214117Sjamie if (argc < 3) { 453214783Sjamie jail_warnx(j, "%s: %s: missing information", 454214783Sjamie j->intparams[comparam]->name, comstring->s); 455214117Sjamie return -1; 456214117Sjamie } 457214805Sjamie if (check_path(j, j->intparams[comparam]->name, argv[1], 0, 458223442Sjamie down ? argv[2] : NULL) < 0) 459214797Sjamie return -1; 460214117Sjamie if (down) { 461214117Sjamie argv[4] = NULL; 462214117Sjamie argv[3] = argv[1]; 463214117Sjamie *(const char **)&argv[0] = "/sbin/umount"; 464214117Sjamie } else { 465214117Sjamie if (argc == 4) { 466214117Sjamie argv[7] = NULL; 467214117Sjamie argv[6] = argv[1]; 468214117Sjamie argv[5] = argv[0]; 469214117Sjamie argv[4] = argv[3]; 470214117Sjamie *(const char **)&argv[3] = "-o"; 471214117Sjamie } else { 472214117Sjamie argv[5] = NULL; 473214117Sjamie argv[4] = argv[1]; 474214117Sjamie argv[3] = argv[0]; 475214117Sjamie } 476214117Sjamie *(const char **)&argv[0] = _PATH_MOUNT; 477214117Sjamie } 478214117Sjamie *(const char **)&argv[1] = "-t"; 479216367Sjamie break; 480216367Sjamie 481216367Sjamie case IP_MOUNT_DEVFS: 482232242Sjamie argv = alloca(7 * sizeof(char *)); 483214117Sjamie path = string_param(j->intparams[KP_PATH]); 484214117Sjamie if (path == NULL) { 485214117Sjamie jail_warnx(j, "mount.devfs: no path"); 486214117Sjamie return -1; 487214117Sjamie } 488214797Sjamie devpath = alloca(strlen(path) + 5); 489214797Sjamie sprintf(devpath, "%s/dev", path); 490214805Sjamie if (check_path(j, "mount.devfs", devpath, 0, 491223442Sjamie down ? "devfs" : NULL) < 0) 492214797Sjamie return -1; 493214117Sjamie if (down) { 494214117Sjamie *(const char **)&argv[0] = "/sbin/umount"; 495214797Sjamie argv[1] = devpath; 496214117Sjamie argv[2] = NULL; 497214117Sjamie } else { 498232242Sjamie *(const char **)&argv[0] = _PATH_MOUNT; 499232242Sjamie *(const char **)&argv[1] = "-t"; 500232242Sjamie *(const char **)&argv[2] = "devfs"; 501232242Sjamie ruleset = string_param(j->intparams[KP_DEVFS_RULESET]); 502232242Sjamie if (!ruleset) 503232242Sjamie ruleset = "4"; /* devfsrules_jail */ 504232242Sjamie argv[3] = alloca(11 + strlen(ruleset)); 505232242Sjamie sprintf(argv[3], "-oruleset=%s", ruleset); 506232242Sjamie *(const char **)&argv[4] = "."; 507232242Sjamie argv[5] = devpath; 508232242Sjamie argv[6] = NULL; 509214117Sjamie } 510216367Sjamie break; 511216367Sjamie 512256387Shrs case IP_MOUNT_FDESCFS: 513256387Shrs argv = alloca(7 * sizeof(char *)); 514256387Shrs path = string_param(j->intparams[KP_PATH]); 515256387Shrs if (path == NULL) { 516256387Shrs jail_warnx(j, "mount.fdescfs: no path"); 517256387Shrs return -1; 518256387Shrs } 519256387Shrs devpath = alloca(strlen(path) + 8); 520256387Shrs sprintf(devpath, "%s/dev/fd", path); 521256387Shrs if (check_path(j, "mount.fdescfs", devpath, 0, 522256387Shrs down ? "fdescfs" : NULL) < 0) 523256387Shrs return -1; 524256387Shrs if (down) { 525256387Shrs *(const char **)&argv[0] = "/sbin/umount"; 526256387Shrs argv[1] = devpath; 527256387Shrs argv[2] = NULL; 528256387Shrs } else { 529256387Shrs *(const char **)&argv[0] = _PATH_MOUNT; 530256387Shrs *(const char **)&argv[1] = "-t"; 531256387Shrs *(const char **)&argv[2] = "fdescfs"; 532256387Shrs *(const char **)&argv[3] = "."; 533256387Shrs argv[4] = devpath; 534256387Shrs argv[5] = NULL; 535256387Shrs } 536256387Shrs break; 537256387Shrs 538278484Sjamie case IP_MOUNT_PROCFS: 539278484Sjamie argv = alloca(7 * sizeof(char *)); 540278484Sjamie path = string_param(j->intparams[KP_PATH]); 541278484Sjamie if (path == NULL) { 542278484Sjamie jail_warnx(j, "mount.procfs: no path"); 543278484Sjamie return -1; 544278484Sjamie } 545278484Sjamie devpath = alloca(strlen(path) + 6); 546278484Sjamie sprintf(devpath, "%s/proc", path); 547278484Sjamie if (check_path(j, "mount.procfs", devpath, 0, 548278484Sjamie down ? "procfs" : NULL) < 0) 549278484Sjamie return -1; 550278484Sjamie if (down) { 551278484Sjamie *(const char **)&argv[0] = "/sbin/umount"; 552278484Sjamie argv[1] = devpath; 553278484Sjamie argv[2] = NULL; 554278484Sjamie } else { 555278484Sjamie *(const char **)&argv[0] = _PATH_MOUNT; 556278484Sjamie *(const char **)&argv[1] = "-t"; 557278484Sjamie *(const char **)&argv[2] = "procfs"; 558278484Sjamie *(const char **)&argv[3] = "."; 559278484Sjamie argv[4] = devpath; 560278484Sjamie argv[5] = NULL; 561278484Sjamie } 562278484Sjamie break; 563278484Sjamie 564216367Sjamie case IP_COMMAND: 565216367Sjamie if (j->name != NULL) 566216367Sjamie goto default_command; 567214117Sjamie argc = 0; 568223188Sjamie TAILQ_FOREACH(s, &j->intparams[IP_COMMAND]->val, tq) 569214117Sjamie argc++; 570214117Sjamie argv = alloca((argc + 1) * sizeof(char *)); 571214117Sjamie argc = 0; 572223188Sjamie TAILQ_FOREACH(s, &j->intparams[IP_COMMAND]->val, tq) 573214117Sjamie argv[argc++] = s->s; 574214117Sjamie argv[argc] = NULL; 575223368Sjamie j->comstring = &dummystring; 576216367Sjamie break; 577216367Sjamie 578216367Sjamie default: 579216367Sjamie default_command: 580216367Sjamie if ((cs = strpbrk(comstring->s, "!\"$&'()*;<>?[\\]`{|}~")) && 581216367Sjamie !(cs[0] == '&' && cs[1] == '\0')) { 582216367Sjamie argv = alloca(4 * sizeof(char *)); 583216367Sjamie *(const char **)&argv[0] = _PATH_BSHELL; 584216367Sjamie *(const char **)&argv[1] = "-c"; 585216367Sjamie argv[2] = comstring->s; 586216367Sjamie argv[3] = NULL; 587216367Sjamie } else { 588216367Sjamie if (cs) { 589216367Sjamie *cs = 0; 590216367Sjamie bg = 1; 591216367Sjamie } 592216367Sjamie comcs = alloca(comstring->len + 1); 593216367Sjamie strcpy(comcs, comstring->s); 594216367Sjamie argc = 0; 595216367Sjamie for (cs = strtok(comcs, " \t\f\v\r\n"); cs; 596216367Sjamie cs = strtok(NULL, " \t\f\v\r\n")) 597216367Sjamie argc++; 598216367Sjamie argv = alloca((argc + 1) * sizeof(char *)); 599216367Sjamie strcpy(comcs, comstring->s); 600216367Sjamie argc = 0; 601216367Sjamie for (cs = strtok(comcs, " \t\f\v\r\n"); cs; 602216367Sjamie cs = strtok(NULL, " \t\f\v\r\n")) 603216367Sjamie argv[argc++] = cs; 604216367Sjamie argv[argc] = NULL; 605214117Sjamie } 606214117Sjamie } 607223189Sjamie if (argv[0] == NULL) 608223189Sjamie return 0; 609216367Sjamie 610214117Sjamie if (int_param(j->intparams[IP_EXEC_TIMEOUT], &timeout) && 611214117Sjamie timeout != 0) { 612214117Sjamie clock_gettime(CLOCK_REALTIME, &j->timeout); 613214117Sjamie j->timeout.tv_sec += timeout; 614214117Sjamie } else 615214117Sjamie j->timeout.tv_sec = 0; 616214117Sjamie 617214117Sjamie injail = comparam == IP_EXEC_START || comparam == IP_COMMAND || 618214117Sjamie comparam == IP_EXEC_STOP; 619214117Sjamie clean = bool_param(j->intparams[IP_EXEC_CLEAN]); 620214117Sjamie username = string_param(j->intparams[injail 621214117Sjamie ? IP_EXEC_JAIL_USER : IP_EXEC_SYSTEM_USER]); 622214117Sjamie sjuser = bool_param(j->intparams[IP_EXEC_SYSTEM_JAIL_USER]); 623214117Sjamie 624214117Sjamie consfd = 0; 625214117Sjamie if (injail && 626214117Sjamie (conslog = string_param(j->intparams[IP_EXEC_CONSOLELOG]))) { 627223442Sjamie if (check_path(j, "exec.consolelog", conslog, 1, NULL) < 0) 628214797Sjamie return -1; 629214117Sjamie consfd = 630214117Sjamie open(conslog, O_WRONLY | O_CREAT | O_APPEND, DEFFILEMODE); 631214117Sjamie if (consfd < 0) { 632214117Sjamie jail_warnx(j, "open %s: %s", conslog, strerror(errno)); 633214117Sjamie return -1; 634214117Sjamie } 635214117Sjamie } 636214117Sjamie 637214117Sjamie comlen = 0; 638214117Sjamie for (i = 0; argv[i]; i++) 639214117Sjamie comlen += strlen(argv[i]) + 1; 640214117Sjamie j->comline = cs = emalloc(comlen); 641214117Sjamie for (i = 0; argv[i]; i++) { 642214117Sjamie strcpy(cs, argv[i]); 643214117Sjamie if (argv[i + 1]) { 644214117Sjamie cs += strlen(argv[i]) + 1; 645214117Sjamie cs[-1] = ' '; 646214117Sjamie } 647214117Sjamie } 648214117Sjamie if (verbose > 0) 649214117Sjamie jail_note(j, "run command%s%s%s: %s\n", 650214117Sjamie injail ? " in jail" : "", username ? " as " : "", 651214117Sjamie username ? username : "", j->comline); 652214117Sjamie 653214117Sjamie pid = fork(); 654214117Sjamie if (pid < 0) 655214117Sjamie err(1, "fork"); 656214117Sjamie if (pid > 0) { 657246804Sjamie if (bg || !add_proc(j, pid)) { 658216367Sjamie free(j->comline); 659216367Sjamie j->comline = NULL; 660223442Sjamie return 0; 661214117Sjamie } else { 662216367Sjamie paralimit--; 663223442Sjamie return 1; 664214117Sjamie } 665214117Sjamie } 666214117Sjamie if (bg) 667214117Sjamie setsid(); 668214117Sjamie 669223189Sjamie /* Set up the environment and run the command */ 670214117Sjamie pwd = NULL; 671214117Sjamie lcap = NULL; 672214117Sjamie if ((clean || username) && injail && sjuser && 673214117Sjamie get_user_info(j, username, &pwd, &lcap) < 0) 674214117Sjamie exit(1); 675214117Sjamie if (injail) { 676214117Sjamie /* jail_attach won't chdir along with its chroot. */ 677214117Sjamie path = string_param(j->intparams[KP_PATH]); 678214117Sjamie if (path && chdir(path) < 0) { 679214117Sjamie jail_warnx(j, "chdir %s: %s", path, strerror(errno)); 680214117Sjamie exit(1); 681214117Sjamie } 682214117Sjamie if (int_param(j->intparams[IP_EXEC_FIB], &fib) && 683214117Sjamie setfib(fib) < 0) { 684214117Sjamie jail_warnx(j, "setfib: %s", strerror(errno)); 685214117Sjamie exit(1); 686214117Sjamie } 687214117Sjamie if (jail_attach(j->jid) < 0) { 688214117Sjamie jail_warnx(j, "jail_attach: %s", strerror(errno)); 689214117Sjamie exit(1); 690214117Sjamie } 691214117Sjamie } 692214117Sjamie if (clean || username) { 693214117Sjamie if (!(injail && sjuser) && 694214117Sjamie get_user_info(j, username, &pwd, &lcap) < 0) 695214117Sjamie exit(1); 696214117Sjamie if (clean) { 697214117Sjamie term = getenv("TERM"); 698214117Sjamie environ = &cleanenv; 699214117Sjamie setenv("PATH", "/bin:/usr/bin", 0); 700235949Sjamie if (term != NULL) 701235949Sjamie setenv("TERM", term, 1); 702214117Sjamie } 703276277Sjamie if (setgid(pwd->pw_gid) < 0) { 704276277Sjamie jail_warnx(j, "setgid %d: %s", pwd->pw_gid, 705276277Sjamie strerror(errno)); 706276277Sjamie exit(1); 707276277Sjamie } 708214117Sjamie if (setusercontext(lcap, pwd, pwd->pw_uid, username 709214117Sjamie ? LOGIN_SETALL & ~LOGIN_SETGROUP & ~LOGIN_SETLOGIN 710214117Sjamie : LOGIN_SETPATH | LOGIN_SETENV) < 0) { 711214117Sjamie jail_warnx(j, "setusercontext %s: %s", pwd->pw_name, 712214117Sjamie strerror(errno)); 713214117Sjamie exit(1); 714214117Sjamie } 715214117Sjamie login_close(lcap); 716214117Sjamie setenv("USER", pwd->pw_name, 1); 717214117Sjamie setenv("HOME", pwd->pw_dir, 1); 718214117Sjamie setenv("SHELL", 719214117Sjamie *pwd->pw_shell ? pwd->pw_shell : _PATH_BSHELL, 1); 720214117Sjamie if (clean && chdir(pwd->pw_dir) < 0) { 721214117Sjamie jail_warnx(j, "chdir %s: %s", 722214117Sjamie pwd->pw_dir, strerror(errno)); 723214117Sjamie exit(1); 724214117Sjamie } 725214117Sjamie endpwent(); 726214117Sjamie } 727214117Sjamie 728214117Sjamie if (consfd != 0 && (dup2(consfd, 1) < 0 || dup2(consfd, 2) < 0)) { 729214117Sjamie jail_warnx(j, "exec.consolelog: %s", strerror(errno)); 730214117Sjamie exit(1); 731214117Sjamie } 732214117Sjamie closefrom(3); 733214117Sjamie execvp(argv[0], argv); 734214117Sjamie jail_warnx(j, "exec %s: %s", argv[0], strerror(errno)); 735214117Sjamie exit(1); 736214117Sjamie} 737214117Sjamie 738214117Sjamie/* 739214117Sjamie * Add a process to the hash, tied to a jail. 740214117Sjamie */ 741246804Sjamiestatic int 742214117Sjamieadd_proc(struct cfjail *j, pid_t pid) 743214117Sjamie{ 744214117Sjamie struct kevent ke; 745214117Sjamie struct cfjail *tj; 746214117Sjamie struct phash *ph; 747214117Sjamie 748214117Sjamie if (!kq && (kq = kqueue()) < 0) 749214117Sjamie err(1, "kqueue"); 750214117Sjamie EV_SET(&ke, pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, NULL); 751246804Sjamie if (kevent(kq, &ke, 1, NULL, 0, NULL) < 0) { 752246804Sjamie if (errno == ESRCH) 753246804Sjamie return 0; 754214117Sjamie err(1, "kevent"); 755246804Sjamie } 756214117Sjamie ph = emalloc(sizeof(struct phash)); 757214117Sjamie ph->j = j; 758214117Sjamie ph->pid = pid; 759214117Sjamie LIST_INSERT_HEAD(&phash[pid % PHASH_SIZE], ph, le); 760214117Sjamie j->nprocs++; 761216367Sjamie j->flags |= JF_SLEEPQ; 762216367Sjamie if (j->timeout.tv_sec == 0) 763216367Sjamie requeue(j, &sleeping); 764216367Sjamie else { 765293290Sbdrewery /* File the jail in the sleep queue according to its timeout. */ 766214117Sjamie TAILQ_REMOVE(j->queue, j, tq); 767214117Sjamie TAILQ_FOREACH(tj, &sleeping, tq) { 768214117Sjamie if (!tj->timeout.tv_sec || 769214117Sjamie j->timeout.tv_sec < tj->timeout.tv_sec || 770214117Sjamie (j->timeout.tv_sec == tj->timeout.tv_sec && 771214117Sjamie j->timeout.tv_nsec <= tj->timeout.tv_nsec)) { 772214117Sjamie TAILQ_INSERT_BEFORE(tj, j, tq); 773214117Sjamie break; 774214117Sjamie } 775214117Sjamie } 776214117Sjamie if (tj == NULL) 777214117Sjamie TAILQ_INSERT_TAIL(&sleeping, j, tq); 778214117Sjamie j->queue = &sleeping; 779216367Sjamie } 780246804Sjamie return 1; 781214117Sjamie} 782214117Sjamie 783214117Sjamie/* 784214117Sjamie * Remove any processes from the hash that correspond to a jail. 785214117Sjamie */ 786214117Sjamiestatic void 787214117Sjamieclear_procs(struct cfjail *j) 788214117Sjamie{ 789214117Sjamie struct kevent ke; 790214117Sjamie struct phash *ph, *tph; 791214117Sjamie int i; 792214117Sjamie 793214117Sjamie j->nprocs = 0; 794214117Sjamie for (i = 0; i < PHASH_SIZE; i++) 795214117Sjamie LIST_FOREACH_SAFE(ph, &phash[i], le, tph) 796214117Sjamie if (ph->j == j) { 797214117Sjamie EV_SET(&ke, ph->pid, EVFILT_PROC, EV_DELETE, 798214117Sjamie NOTE_EXIT, 0, NULL); 799214117Sjamie (void)kevent(kq, &ke, 1, NULL, 0, NULL); 800214117Sjamie LIST_REMOVE(ph, le); 801214117Sjamie free(ph); 802214117Sjamie } 803214117Sjamie} 804214117Sjamie 805214117Sjamie/* 806214117Sjamie * Find the jail that corresponds to an exited process. 807214117Sjamie */ 808214117Sjamiestatic struct cfjail * 809214117Sjamiefind_proc(pid_t pid) 810214117Sjamie{ 811214117Sjamie struct cfjail *j; 812214117Sjamie struct phash *ph; 813214117Sjamie 814214117Sjamie LIST_FOREACH(ph, &phash[pid % PHASH_SIZE], le) 815214117Sjamie if (ph->pid == pid) { 816214117Sjamie j = ph->j; 817214117Sjamie LIST_REMOVE(ph, le); 818214117Sjamie free(ph); 819214117Sjamie return --j->nprocs ? NULL : j; 820214117Sjamie } 821214117Sjamie return NULL; 822214117Sjamie} 823214117Sjamie 824214117Sjamie/* 825216367Sjamie * Send SIGTERM to all processes in a jail and wait for them to die. 826216367Sjamie */ 827216367Sjamiestatic int 828216367Sjamieterm_procs(struct cfjail *j) 829216367Sjamie{ 830216367Sjamie struct kinfo_proc *ki; 831216367Sjamie int i, noted, pcnt, timeout; 832216367Sjamie 833216367Sjamie static kvm_t *kd; 834216367Sjamie 835216367Sjamie if (!int_param(j->intparams[IP_STOP_TIMEOUT], &timeout)) 836216367Sjamie timeout = DEFAULT_STOP_TIMEOUT; 837216367Sjamie else if (timeout == 0) 838216367Sjamie return 0; 839216367Sjamie 840216367Sjamie if (kd == NULL) { 841231238Sjamie kd = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL); 842216367Sjamie if (kd == NULL) 843231238Sjamie return 0; 844216367Sjamie } 845216367Sjamie 846216367Sjamie ki = kvm_getprocs(kd, KERN_PROC_PROC, 0, &pcnt); 847216367Sjamie if (ki == NULL) 848231238Sjamie return 0; 849216367Sjamie noted = 0; 850216367Sjamie for (i = 0; i < pcnt; i++) 851216367Sjamie if (ki[i].ki_jid == j->jid && 852216367Sjamie kill(ki[i].ki_pid, SIGTERM) == 0) { 853246804Sjamie (void)add_proc(j, ki[i].ki_pid); 854216367Sjamie if (verbose > 0) { 855216367Sjamie if (!noted) { 856216367Sjamie noted = 1; 857216367Sjamie jail_note(j, "sent SIGTERM to:"); 858216367Sjamie } 859216367Sjamie printf(" %d", ki[i].ki_pid); 860216367Sjamie } 861216367Sjamie } 862216367Sjamie if (noted) 863216367Sjamie printf("\n"); 864216367Sjamie if (j->nprocs > 0) { 865216367Sjamie clock_gettime(CLOCK_REALTIME, &j->timeout); 866216367Sjamie j->timeout.tv_sec += timeout; 867216367Sjamie return 1; 868216367Sjamie } 869216367Sjamie return 0; 870216367Sjamie} 871216367Sjamie 872216367Sjamie/* 873214117Sjamie * Look up a user in the passwd and login.conf files. 874214117Sjamie */ 875214117Sjamiestatic int 876214117Sjamieget_user_info(struct cfjail *j, const char *username, 877214117Sjamie const struct passwd **pwdp, login_cap_t **lcapp) 878214117Sjamie{ 879214117Sjamie const struct passwd *pwd; 880214117Sjamie 881294484Sjamie errno = 0; 882214117Sjamie *pwdp = pwd = username ? getpwnam(username) : getpwuid(getuid()); 883214117Sjamie if (pwd == NULL) { 884214117Sjamie if (errno) 885214117Sjamie jail_warnx(j, "getpwnam%s%s: %s", username ? " " : "", 886214117Sjamie username ? username : "", strerror(errno)); 887214117Sjamie else if (username) 888214117Sjamie jail_warnx(j, "%s: no such user", username); 889214117Sjamie else 890214117Sjamie jail_warnx(j, "unknown uid %d", getuid()); 891214117Sjamie return -1; 892214117Sjamie } 893214117Sjamie *lcapp = login_getpwclass(pwd); 894214117Sjamie if (*lcapp == NULL) { 895214117Sjamie jail_warnx(j, "getpwclass %s: %s", pwd->pw_name, 896214117Sjamie strerror(errno)); 897214117Sjamie return -1; 898214117Sjamie } 899214117Sjamie /* Set the groups while the group file is still available */ 900214117Sjamie if (initgroups(pwd->pw_name, pwd->pw_gid) < 0) { 901214117Sjamie jail_warnx(j, "initgroups %s: %s", pwd->pw_name, 902214117Sjamie strerror(errno)); 903214117Sjamie return -1; 904214117Sjamie } 905214117Sjamie return 0; 906214117Sjamie} 907214797Sjamie 908214797Sjamie/* 909214797Sjamie * Make sure a mount or consolelog path is a valid absolute pathname 910214797Sjamie * with no symlinks. 911214797Sjamie */ 912214797Sjamiestatic int 913214805Sjamiecheck_path(struct cfjail *j, const char *pname, const char *path, int isfile, 914214805Sjamie const char *umount_type) 915214797Sjamie{ 916214805Sjamie struct stat st, mpst; 917214805Sjamie struct statfs stfs; 918214797Sjamie char *tpath, *p; 919214797Sjamie const char *jailpath; 920214797Sjamie size_t jplen; 921214797Sjamie 922214797Sjamie if (path[0] != '/') { 923214797Sjamie jail_warnx(j, "%s: %s: not an absolute pathname", 924214797Sjamie pname, path); 925214797Sjamie return -1; 926214797Sjamie } 927214797Sjamie /* 928214797Sjamie * Only check for symlinks in components below the jail's path, 929214797Sjamie * since that's where the security risk lies. 930214797Sjamie */ 931214797Sjamie jailpath = string_param(j->intparams[KP_PATH]); 932214797Sjamie if (jailpath == NULL) 933214797Sjamie jailpath = ""; 934214797Sjamie jplen = strlen(jailpath); 935214805Sjamie if (!strncmp(path, jailpath, jplen) && path[jplen] == '/') { 936214805Sjamie tpath = alloca(strlen(path) + 1); 937214805Sjamie strcpy(tpath, path); 938214805Sjamie for (p = tpath + jplen; p != NULL; ) { 939214805Sjamie p = strchr(p + 1, '/'); 940214805Sjamie if (p) 941214805Sjamie *p = '\0'; 942214805Sjamie if (lstat(tpath, &st) < 0) { 943214805Sjamie if (errno == ENOENT && isfile && !p) 944214805Sjamie break; 945214805Sjamie jail_warnx(j, "%s: %s: %s", pname, tpath, 946214805Sjamie strerror(errno)); 947214805Sjamie return -1; 948214805Sjamie } 949214805Sjamie if (S_ISLNK(st.st_mode)) { 950214805Sjamie jail_warnx(j, "%s: %s is a symbolic link", 951214805Sjamie pname, tpath); 952214805Sjamie return -1; 953214805Sjamie } 954214805Sjamie if (p) 955214805Sjamie *p = '/'; 956214805Sjamie } 957214805Sjamie } 958214805Sjamie if (umount_type != NULL) { 959214805Sjamie if (stat(path, &st) < 0 || statfs(path, &stfs) < 0) { 960214805Sjamie jail_warnx(j, "%s: %s: %s", pname, path, 961214797Sjamie strerror(errno)); 962214797Sjamie return -1; 963214797Sjamie } 964214805Sjamie if (stat(stfs.f_mntonname, &mpst) < 0) { 965214805Sjamie jail_warnx(j, "%s: %s: %s", pname, stfs.f_mntonname, 966214805Sjamie strerror(errno)); 967214797Sjamie return -1; 968214797Sjamie } 969214805Sjamie if (st.st_ino != mpst.st_ino) { 970214805Sjamie jail_warnx(j, "%s: %s: not a mount point", 971214805Sjamie pname, path); 972214805Sjamie return -1; 973214805Sjamie } 974214805Sjamie if (strcmp(stfs.f_fstypename, umount_type)) { 975214805Sjamie jail_warnx(j, "%s: %s: not a %s mount", 976214805Sjamie pname, path, umount_type); 977214805Sjamie return -1; 978214805Sjamie } 979214797Sjamie } 980214797Sjamie return 0; 981214797Sjamie} 982