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("$FreeBSD$"); 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> 50298729Sjamie#include <vis.h> 51214117Sjamie 52214117Sjamie#include "jailp.h" 53214117Sjamie 54214117Sjamie#define DEFAULT_STOP_TIMEOUT 10 55214117Sjamie#define PHASH_SIZE 256 56214117Sjamie 57214117SjamieLIST_HEAD(phhead, phash); 58214117Sjamie 59214117Sjamiestruct phash { 60214117Sjamie LIST_ENTRY(phash) le; 61214117Sjamie struct cfjail *j; 62214117Sjamie pid_t pid; 63214117Sjamie}; 64214117Sjamie 65216367Sjamieint paralimit = -1; 66216367Sjamie 67214117Sjamieextern char **environ; 68214117Sjamie 69223189Sjamiestatic int run_command(struct cfjail *j); 70246804Sjamiestatic int add_proc(struct cfjail *j, pid_t pid); 71214117Sjamiestatic void clear_procs(struct cfjail *j); 72214117Sjamiestatic struct cfjail *find_proc(pid_t pid); 73216367Sjamiestatic int term_procs(struct cfjail *j); 74223189Sjamiestatic int get_user_info(struct cfjail *j, const char *username, 75223189Sjamie const struct passwd **pwdp, login_cap_t **lcapp); 76214797Sjamiestatic int check_path(struct cfjail *j, const char *pname, const char *path, 77214805Sjamie int isfile, const char *umount_type); 78214117Sjamie 79214117Sjamiestatic struct cfjails sleeping = TAILQ_HEAD_INITIALIZER(sleeping); 80214117Sjamiestatic struct cfjails runnable = TAILQ_HEAD_INITIALIZER(runnable); 81223368Sjamiestatic struct cfstring dummystring = { .len = 1 }; 82214117Sjamiestatic struct phhead phash[PHASH_SIZE]; 83214117Sjamiestatic int kq; 84214117Sjamie 85214117Sjamie/* 86223189Sjamie * Run the next command associated with a jail. 87214117Sjamie */ 88214117Sjamieint 89223189Sjamienext_command(struct cfjail *j) 90214117Sjamie{ 91223189Sjamie enum intparam comparam; 92248854Sjamie int create_failed, stopping; 93223189Sjamie 94223442Sjamie if (paralimit == 0) { 95302958Sjamie if (j->flags & JF_FROM_RUNQ) 96302958Sjamie requeue_head(j, &runnable); 97302958Sjamie else 98302958Sjamie requeue(j, &runnable); 99223442Sjamie return 1; 100223442Sjamie } 101302958Sjamie j->flags &= ~JF_FROM_RUNQ; 102223189Sjamie create_failed = (j->flags & (JF_STOP | JF_FAILED)) == JF_FAILED; 103248854Sjamie stopping = (j->flags & JF_STOP) != 0; 104223442Sjamie comparam = *j->comparam; 105223442Sjamie for (;;) { 106223189Sjamie if (j->comstring == NULL) { 107223442Sjamie j->comparam += create_failed ? -1 : 1; 108223442Sjamie switch ((comparam = *j->comparam)) { 109234988Sjamie case IP__NULL: 110223442Sjamie return 0; 111223189Sjamie case IP_MOUNT_DEVFS: 112223189Sjamie if (!bool_param(j->intparams[IP_MOUNT_DEVFS])) 113223189Sjamie continue; 114256387Shrs j->comstring = &dummystring; 115256387Shrs break; 116256387Shrs case IP_MOUNT_FDESCFS: 117256387Shrs if (!bool_param(j->intparams[IP_MOUNT_FDESCFS])) 118256387Shrs continue; 119256387Shrs j->comstring = &dummystring; 120278484Sjamie break; 121278484Sjamie case IP_MOUNT_PROCFS: 122278484Sjamie if (!bool_param(j->intparams[IP_MOUNT_PROCFS])) 123278484Sjamie continue; 124278484Sjamie j->comstring = &dummystring; 125278484Sjamie break; 126223263Sjamie case IP__OP: 127223189Sjamie case IP_STOP_TIMEOUT: 128223189Sjamie j->comstring = &dummystring; 129223189Sjamie break; 130223189Sjamie default: 131223189Sjamie if (j->intparams[comparam] == NULL) 132223189Sjamie continue; 133248854Sjamie j->comstring = create_failed || (stopping && 134248854Sjamie (j->intparams[comparam]->flags & PF_REV)) 135223189Sjamie ? TAILQ_LAST(&j->intparams[comparam]->val, 136223189Sjamie cfstrings) 137223189Sjamie : TAILQ_FIRST(&j->intparams[comparam]->val); 138223189Sjamie } 139223442Sjamie } else { 140223442Sjamie j->comstring = j->comstring == &dummystring ? NULL : 141248854Sjamie create_failed || (stopping && 142248854Sjamie (j->intparams[comparam]->flags & PF_REV)) 143223442Sjamie ? TAILQ_PREV(j->comstring, cfstrings, tq) 144223442Sjamie : TAILQ_NEXT(j->comstring, tq); 145223189Sjamie } 146223442Sjamie if (j->comstring == NULL || j->comstring->len == 0 || 147223442Sjamie (create_failed && (comparam == IP_EXEC_PRESTART || 148223442Sjamie comparam == IP_EXEC_START || comparam == IP_COMMAND || 149223442Sjamie comparam == IP_EXEC_POSTSTART))) 150223442Sjamie continue; 151223442Sjamie switch (run_command(j)) { 152223442Sjamie case -1: 153223442Sjamie failed(j); 154223442Sjamie /* FALLTHROUGH */ 155223442Sjamie case 1: 156223442Sjamie return 1; 157223189Sjamie } 158223189Sjamie } 159223189Sjamie} 160223189Sjamie 161223189Sjamie/* 162223189Sjamie * Check command exit status 163223189Sjamie */ 164223189Sjamieint 165223189Sjamiefinish_command(struct cfjail *j) 166223189Sjamie{ 167302958Sjamie struct cfjail *rj; 168223189Sjamie int error; 169223189Sjamie 170223189Sjamie if (!(j->flags & JF_SLEEPQ)) 171223189Sjamie return 0; 172223189Sjamie j->flags &= ~JF_SLEEPQ; 173302958Sjamie if (*j->comparam == IP_STOP_TIMEOUT) { 174223827Sjamie j->flags &= ~JF_TIMEOUT; 175223827Sjamie j->pstatus = 0; 176223827Sjamie return 0; 177223189Sjamie } 178223827Sjamie paralimit++; 179302958Sjamie if (!TAILQ_EMPTY(&runnable)) { 180302958Sjamie rj = TAILQ_FIRST(&runnable); 181302958Sjamie rj->flags |= JF_FROM_RUNQ; 182302958Sjamie requeue(rj, &ready); 183302958Sjamie } 184223189Sjamie error = 0; 185223189Sjamie if (j->flags & JF_TIMEOUT) { 186223189Sjamie j->flags &= ~JF_TIMEOUT; 187223189Sjamie if (*j->comparam != IP_STOP_TIMEOUT) { 188223189Sjamie jail_warnx(j, "%s: timed out", j->comline); 189223189Sjamie failed(j); 190223189Sjamie error = -1; 191223189Sjamie } else if (verbose > 0) 192223189Sjamie jail_note(j, "timed out\n"); 193223189Sjamie } else if (j->pstatus != 0) { 194223189Sjamie if (WIFSIGNALED(j->pstatus)) 195223189Sjamie jail_warnx(j, "%s: exited on signal %d", 196223189Sjamie j->comline, WTERMSIG(j->pstatus)); 197223189Sjamie else 198223189Sjamie jail_warnx(j, "%s: failed", j->comline); 199223189Sjamie j->pstatus = 0; 200223189Sjamie failed(j); 201223189Sjamie error = -1; 202223189Sjamie } 203223189Sjamie free(j->comline); 204223189Sjamie j->comline = NULL; 205223189Sjamie return error; 206223189Sjamie} 207223189Sjamie 208223189Sjamie/* 209223442Sjamie * Check for finished processes or timeouts. 210223189Sjamie */ 211223189Sjamiestruct cfjail * 212223189Sjamienext_proc(int nonblock) 213223189Sjamie{ 214223189Sjamie struct kevent ke; 215223189Sjamie struct timespec ts; 216223189Sjamie struct timespec *tsp; 217223189Sjamie struct cfjail *j; 218223189Sjamie 219223189Sjamie if (!TAILQ_EMPTY(&sleeping)) { 220223189Sjamie again: 221223189Sjamie tsp = NULL; 222223189Sjamie if ((j = TAILQ_FIRST(&sleeping)) && j->timeout.tv_sec) { 223223189Sjamie clock_gettime(CLOCK_REALTIME, &ts); 224223189Sjamie ts.tv_sec = j->timeout.tv_sec - ts.tv_sec; 225223189Sjamie ts.tv_nsec = j->timeout.tv_nsec - ts.tv_nsec; 226223189Sjamie if (ts.tv_nsec < 0) { 227223189Sjamie ts.tv_sec--; 228223189Sjamie ts.tv_nsec += 1000000000; 229223189Sjamie } 230223189Sjamie if (ts.tv_sec < 0 || 231223189Sjamie (ts.tv_sec == 0 && ts.tv_nsec == 0)) { 232223189Sjamie j->flags |= JF_TIMEOUT; 233223189Sjamie clear_procs(j); 234223189Sjamie return j; 235223189Sjamie } 236223189Sjamie tsp = &ts; 237223189Sjamie } 238223189Sjamie if (nonblock) { 239223189Sjamie ts.tv_sec = 0; 240223189Sjamie ts.tv_nsec = 0; 241223189Sjamie tsp = &ts; 242223189Sjamie } 243223189Sjamie switch (kevent(kq, NULL, 0, &ke, 1, tsp)) { 244223189Sjamie case -1: 245223189Sjamie if (errno != EINTR) 246223189Sjamie err(1, "kevent"); 247223189Sjamie goto again; 248223189Sjamie case 0: 249223189Sjamie if (!nonblock) { 250223189Sjamie j = TAILQ_FIRST(&sleeping); 251223189Sjamie j->flags |= JF_TIMEOUT; 252223189Sjamie clear_procs(j); 253223189Sjamie return j; 254223189Sjamie } 255223189Sjamie break; 256223189Sjamie case 1: 257223189Sjamie (void)waitpid(ke.ident, NULL, WNOHANG); 258223189Sjamie if ((j = find_proc(ke.ident))) { 259223189Sjamie j->pstatus = ke.data; 260223189Sjamie return j; 261223189Sjamie } 262223189Sjamie goto again; 263223189Sjamie } 264223189Sjamie } 265223189Sjamie return NULL; 266223189Sjamie} 267223189Sjamie 268223189Sjamie/* 269302958Sjamie * Run a single command for a jail, possibly inside the jail. 270223189Sjamie */ 271236198Sjamiestatic int 272223189Sjamierun_command(struct cfjail *j) 273223189Sjamie{ 274214117Sjamie const struct passwd *pwd; 275223189Sjamie const struct cfstring *comstring, *s; 276214117Sjamie login_cap_t *lcap; 277214117Sjamie char **argv; 278223351Sjamie char *cs, *comcs, *devpath; 279214117Sjamie const char *jidstr, *conslog, *path, *ruleset, *term, *username; 280223189Sjamie enum intparam comparam; 281214117Sjamie size_t comlen; 282214117Sjamie pid_t pid; 283214117Sjamie int argc, bg, clean, consfd, down, fib, i, injail, sjuser, timeout; 284223351Sjamie#if defined(INET) || defined(INET6) 285269805Ssmh char *addr, *extrap, *p, *val; 286223351Sjamie#endif 287214117Sjamie 288214117Sjamie static char *cleanenv; 289214117Sjamie 290223263Sjamie /* Perform some operations that aren't actually commands */ 291223263Sjamie comparam = *j->comparam; 292223263Sjamie down = j->flags & (JF_STOP | JF_FAILED); 293223263Sjamie switch (comparam) { 294223263Sjamie case IP_STOP_TIMEOUT: 295223263Sjamie return term_procs(j); 296223263Sjamie 297223263Sjamie case IP__OP: 298223263Sjamie if (down) { 299231238Sjamie if (jail_remove(j->jid) < 0 && errno == EPERM) { 300231238Sjamie jail_warnx(j, "jail_remove: %s", 301231238Sjamie strerror(errno)); 302231238Sjamie return -1; 303231238Sjamie } 304223827Sjamie if (verbose > 0 || (verbose == 0 && (j->flags & JF_STOP 305223263Sjamie ? note_remove : j->name != NULL))) 306223263Sjamie jail_note(j, "removed\n"); 307223263Sjamie j->jid = -1; 308223263Sjamie if (j->flags & JF_STOP) 309223263Sjamie dep_done(j, DF_LIGHT); 310223263Sjamie else 311223263Sjamie j->flags &= ~JF_PERSIST; 312223263Sjamie } else { 313223442Sjamie if (create_jail(j) < 0) 314223263Sjamie return -1; 315236198Sjamie if (iflag) 316236198Sjamie printf("%d\n", j->jid); 317223263Sjamie if (verbose >= 0 && (j->name || verbose > 0)) 318223263Sjamie jail_note(j, "created\n"); 319223263Sjamie dep_done(j, DF_LIGHT); 320223263Sjamie } 321223442Sjamie return 0; 322223327Sjamie 323223327Sjamie default: ; 324223263Sjamie } 325214117Sjamie /* 326214117Sjamie * Collect exec arguments. Internal commands for network and 327216367Sjamie * mounting build their own argument lists. 328214117Sjamie */ 329223189Sjamie comstring = j->comstring; 330223189Sjamie bg = 0; 331216367Sjamie switch (comparam) { 332223351Sjamie#ifdef INET 333216367Sjamie case IP__IP4_IFADDR: 334269805Ssmh argc = 0; 335269805Ssmh val = alloca(strlen(comstring->s) + 1); 336269805Ssmh strcpy(val, comstring->s); 337269805Ssmh cs = val; 338269805Ssmh extrap = NULL; 339269805Ssmh while ((p = strchr(cs, ' ')) != NULL && strlen(p) > 1) { 340269805Ssmh if (extrap == NULL) { 341269805Ssmh *p = '\0'; 342269805Ssmh extrap = p + 1; 343269805Ssmh } 344269805Ssmh cs = p + 1; 345269805Ssmh argc++; 346269805Ssmh } 347269805Ssmh 348269805Ssmh argv = alloca((8 + argc) * sizeof(char *)); 349214117Sjamie *(const char **)&argv[0] = _PATH_IFCONFIG; 350269805Ssmh if ((cs = strchr(val, '|'))) { 351269805Ssmh argv[1] = alloca(cs - val + 1); 352269805Ssmh strlcpy(argv[1], val, cs - val + 1); 353214117Sjamie addr = cs + 1; 354214117Sjamie } else { 355214117Sjamie *(const char **)&argv[1] = 356214117Sjamie string_param(j->intparams[IP_INTERFACE]); 357269805Ssmh addr = val; 358214117Sjamie } 359214117Sjamie *(const char **)&argv[2] = "inet"; 360214117Sjamie if (!(cs = strchr(addr, '/'))) { 361214117Sjamie argv[3] = addr; 362214117Sjamie *(const char **)&argv[4] = "netmask"; 363214117Sjamie *(const char **)&argv[5] = "255.255.255.255"; 364214117Sjamie argc = 6; 365214117Sjamie } else if (strchr(cs + 1, '.')) { 366214117Sjamie argv[3] = alloca(cs - addr + 1); 367214117Sjamie strlcpy(argv[3], addr, cs - addr + 1); 368214117Sjamie *(const char **)&argv[4] = "netmask"; 369214117Sjamie *(const char **)&argv[5] = cs + 1; 370214117Sjamie argc = 6; 371214117Sjamie } else { 372214117Sjamie argv[3] = addr; 373214117Sjamie argc = 4; 374214117Sjamie } 375269805Ssmh 376269805Ssmh if (!down) { 377269805Ssmh for (cs = strtok(extrap, " "); cs; cs = strtok(NULL, " ")) { 378269805Ssmh size_t len = strlen(cs) + 1; 379269805Ssmh argv[argc] = alloca(len); 380269805Ssmh strlcpy(argv[argc++], cs, len); 381269805Ssmh } 382269805Ssmh } 383269805Ssmh 384214117Sjamie *(const char **)&argv[argc] = down ? "-alias" : "alias"; 385214117Sjamie argv[argc + 1] = NULL; 386216367Sjamie break; 387223351Sjamie#endif 388216367Sjamie 389214117Sjamie#ifdef INET6 390216367Sjamie case IP__IP6_IFADDR: 391269805Ssmh argc = 0; 392269805Ssmh val = alloca(strlen(comstring->s) + 1); 393269805Ssmh strcpy(val, comstring->s); 394269805Ssmh cs = val; 395269805Ssmh extrap = NULL; 396269805Ssmh while ((p = strchr(cs, ' ')) != NULL && strlen(p) > 1) { 397269805Ssmh if (extrap == NULL) { 398269805Ssmh *p = '\0'; 399269805Ssmh extrap = p + 1; 400269805Ssmh } 401269805Ssmh cs = p + 1; 402269805Ssmh argc++; 403269805Ssmh } 404269805Ssmh 405269805Ssmh argv = alloca((8 + argc) * sizeof(char *)); 406214117Sjamie *(const char **)&argv[0] = _PATH_IFCONFIG; 407269805Ssmh if ((cs = strchr(val, '|'))) { 408269805Ssmh argv[1] = alloca(cs - val + 1); 409269805Ssmh strlcpy(argv[1], val, cs - val + 1); 410214117Sjamie addr = cs + 1; 411214117Sjamie } else { 412214117Sjamie *(const char **)&argv[1] = 413214117Sjamie string_param(j->intparams[IP_INTERFACE]); 414269805Ssmh addr = val; 415214117Sjamie } 416214117Sjamie *(const char **)&argv[2] = "inet6"; 417214117Sjamie argv[3] = addr; 418214117Sjamie if (!(cs = strchr(addr, '/'))) { 419214117Sjamie *(const char **)&argv[4] = "prefixlen"; 420214117Sjamie *(const char **)&argv[5] = "128"; 421214117Sjamie argc = 6; 422214117Sjamie } else 423214117Sjamie argc = 4; 424269805Ssmh 425269805Ssmh if (!down) { 426269805Ssmh for (cs = strtok(extrap, " "); cs; cs = strtok(NULL, " ")) { 427269805Ssmh size_t len = strlen(cs) + 1; 428269805Ssmh argv[argc] = alloca(len); 429269805Ssmh strlcpy(argv[argc++], cs, len); 430269805Ssmh } 431269805Ssmh } 432269805Ssmh 433214117Sjamie *(const char **)&argv[argc] = down ? "-alias" : "alias"; 434214117Sjamie argv[argc + 1] = NULL; 435216367Sjamie break; 436214117Sjamie#endif 437216367Sjamie 438216367Sjamie case IP_VNET_INTERFACE: 439214117Sjamie argv = alloca(5 * sizeof(char *)); 440214117Sjamie *(const char **)&argv[0] = _PATH_IFCONFIG; 441214117Sjamie argv[1] = comstring->s; 442214117Sjamie *(const char **)&argv[2] = down ? "-vnet" : "vnet"; 443214117Sjamie jidstr = string_param(j->intparams[KP_JID]); 444214117Sjamie *(const char **)&argv[3] = 445214117Sjamie jidstr ? jidstr : string_param(j->intparams[KP_NAME]); 446214117Sjamie argv[4] = NULL; 447216367Sjamie break; 448216367Sjamie 449216367Sjamie case IP_MOUNT: 450216367Sjamie case IP__MOUNT_FROM_FSTAB: 451214117Sjamie argv = alloca(8 * sizeof(char *)); 452214117Sjamie comcs = alloca(comstring->len + 1); 453214117Sjamie strcpy(comcs, comstring->s); 454214117Sjamie argc = 0; 455214117Sjamie for (cs = strtok(comcs, " \t\f\v\r\n"); cs && argc < 4; 456298729Sjamie cs = strtok(NULL, " \t\f\v\r\n")) { 457298729Sjamie if (argc <= 1 && strunvis(cs, cs) < 0) { 458298729Sjamie jail_warnx(j, "%s: %s: fstab parse error", 459298729Sjamie j->intparams[comparam]->name, comstring->s); 460298729Sjamie return -1; 461298729Sjamie } 462214117Sjamie argv[argc++] = cs; 463298729Sjamie } 464214797Sjamie if (argc == 0) 465223189Sjamie return 0; 466214117Sjamie if (argc < 3) { 467214783Sjamie jail_warnx(j, "%s: %s: missing information", 468214783Sjamie j->intparams[comparam]->name, comstring->s); 469214117Sjamie return -1; 470214117Sjamie } 471214805Sjamie if (check_path(j, j->intparams[comparam]->name, argv[1], 0, 472223442Sjamie down ? argv[2] : NULL) < 0) 473214797Sjamie return -1; 474214117Sjamie if (down) { 475214117Sjamie argv[4] = NULL; 476214117Sjamie argv[3] = argv[1]; 477214117Sjamie *(const char **)&argv[0] = "/sbin/umount"; 478214117Sjamie } else { 479214117Sjamie if (argc == 4) { 480214117Sjamie argv[7] = NULL; 481214117Sjamie argv[6] = argv[1]; 482214117Sjamie argv[5] = argv[0]; 483214117Sjamie argv[4] = argv[3]; 484214117Sjamie *(const char **)&argv[3] = "-o"; 485214117Sjamie } else { 486214117Sjamie argv[5] = NULL; 487214117Sjamie argv[4] = argv[1]; 488214117Sjamie argv[3] = argv[0]; 489214117Sjamie } 490214117Sjamie *(const char **)&argv[0] = _PATH_MOUNT; 491214117Sjamie } 492214117Sjamie *(const char **)&argv[1] = "-t"; 493216367Sjamie break; 494216367Sjamie 495216367Sjamie case IP_MOUNT_DEVFS: 496232242Sjamie argv = alloca(7 * sizeof(char *)); 497214117Sjamie path = string_param(j->intparams[KP_PATH]); 498214117Sjamie if (path == NULL) { 499214117Sjamie jail_warnx(j, "mount.devfs: no path"); 500214117Sjamie return -1; 501214117Sjamie } 502214797Sjamie devpath = alloca(strlen(path) + 5); 503214797Sjamie sprintf(devpath, "%s/dev", path); 504214805Sjamie if (check_path(j, "mount.devfs", devpath, 0, 505223442Sjamie down ? "devfs" : NULL) < 0) 506214797Sjamie return -1; 507214117Sjamie if (down) { 508214117Sjamie *(const char **)&argv[0] = "/sbin/umount"; 509214797Sjamie argv[1] = devpath; 510214117Sjamie argv[2] = NULL; 511214117Sjamie } else { 512232242Sjamie *(const char **)&argv[0] = _PATH_MOUNT; 513232242Sjamie *(const char **)&argv[1] = "-t"; 514232242Sjamie *(const char **)&argv[2] = "devfs"; 515232242Sjamie ruleset = string_param(j->intparams[KP_DEVFS_RULESET]); 516232242Sjamie if (!ruleset) 517232242Sjamie ruleset = "4"; /* devfsrules_jail */ 518232242Sjamie argv[3] = alloca(11 + strlen(ruleset)); 519232242Sjamie sprintf(argv[3], "-oruleset=%s", ruleset); 520232242Sjamie *(const char **)&argv[4] = "."; 521232242Sjamie argv[5] = devpath; 522232242Sjamie argv[6] = NULL; 523214117Sjamie } 524216367Sjamie break; 525216367Sjamie 526256387Shrs case IP_MOUNT_FDESCFS: 527256387Shrs argv = alloca(7 * sizeof(char *)); 528256387Shrs path = string_param(j->intparams[KP_PATH]); 529256387Shrs if (path == NULL) { 530256387Shrs jail_warnx(j, "mount.fdescfs: no path"); 531256387Shrs return -1; 532256387Shrs } 533256387Shrs devpath = alloca(strlen(path) + 8); 534256387Shrs sprintf(devpath, "%s/dev/fd", path); 535256387Shrs if (check_path(j, "mount.fdescfs", devpath, 0, 536256387Shrs down ? "fdescfs" : NULL) < 0) 537256387Shrs return -1; 538256387Shrs if (down) { 539256387Shrs *(const char **)&argv[0] = "/sbin/umount"; 540256387Shrs argv[1] = devpath; 541256387Shrs argv[2] = NULL; 542256387Shrs } else { 543256387Shrs *(const char **)&argv[0] = _PATH_MOUNT; 544256387Shrs *(const char **)&argv[1] = "-t"; 545256387Shrs *(const char **)&argv[2] = "fdescfs"; 546256387Shrs *(const char **)&argv[3] = "."; 547256387Shrs argv[4] = devpath; 548256387Shrs argv[5] = NULL; 549256387Shrs } 550256387Shrs break; 551256387Shrs 552278484Sjamie case IP_MOUNT_PROCFS: 553278484Sjamie argv = alloca(7 * sizeof(char *)); 554278484Sjamie path = string_param(j->intparams[KP_PATH]); 555278484Sjamie if (path == NULL) { 556278484Sjamie jail_warnx(j, "mount.procfs: no path"); 557278484Sjamie return -1; 558278484Sjamie } 559278484Sjamie devpath = alloca(strlen(path) + 6); 560278484Sjamie sprintf(devpath, "%s/proc", path); 561278484Sjamie if (check_path(j, "mount.procfs", devpath, 0, 562278484Sjamie down ? "procfs" : NULL) < 0) 563278484Sjamie return -1; 564278484Sjamie if (down) { 565278484Sjamie *(const char **)&argv[0] = "/sbin/umount"; 566278484Sjamie argv[1] = devpath; 567278484Sjamie argv[2] = NULL; 568278484Sjamie } else { 569278484Sjamie *(const char **)&argv[0] = _PATH_MOUNT; 570278484Sjamie *(const char **)&argv[1] = "-t"; 571278484Sjamie *(const char **)&argv[2] = "procfs"; 572278484Sjamie *(const char **)&argv[3] = "."; 573278484Sjamie argv[4] = devpath; 574278484Sjamie argv[5] = NULL; 575278484Sjamie } 576278484Sjamie break; 577278484Sjamie 578216367Sjamie case IP_COMMAND: 579216367Sjamie if (j->name != NULL) 580216367Sjamie goto default_command; 581214117Sjamie argc = 0; 582223188Sjamie TAILQ_FOREACH(s, &j->intparams[IP_COMMAND]->val, tq) 583214117Sjamie argc++; 584214117Sjamie argv = alloca((argc + 1) * sizeof(char *)); 585214117Sjamie argc = 0; 586223188Sjamie TAILQ_FOREACH(s, &j->intparams[IP_COMMAND]->val, tq) 587214117Sjamie argv[argc++] = s->s; 588214117Sjamie argv[argc] = NULL; 589223368Sjamie j->comstring = &dummystring; 590216367Sjamie break; 591216367Sjamie 592216367Sjamie default: 593216367Sjamie default_command: 594216367Sjamie if ((cs = strpbrk(comstring->s, "!\"$&'()*;<>?[\\]`{|}~")) && 595216367Sjamie !(cs[0] == '&' && cs[1] == '\0')) { 596216367Sjamie argv = alloca(4 * sizeof(char *)); 597216367Sjamie *(const char **)&argv[0] = _PATH_BSHELL; 598216367Sjamie *(const char **)&argv[1] = "-c"; 599216367Sjamie argv[2] = comstring->s; 600216367Sjamie argv[3] = NULL; 601216367Sjamie } else { 602216367Sjamie if (cs) { 603216367Sjamie *cs = 0; 604216367Sjamie bg = 1; 605216367Sjamie } 606216367Sjamie comcs = alloca(comstring->len + 1); 607216367Sjamie strcpy(comcs, comstring->s); 608216367Sjamie argc = 0; 609216367Sjamie for (cs = strtok(comcs, " \t\f\v\r\n"); cs; 610216367Sjamie cs = strtok(NULL, " \t\f\v\r\n")) 611216367Sjamie argc++; 612216367Sjamie argv = alloca((argc + 1) * sizeof(char *)); 613216367Sjamie strcpy(comcs, comstring->s); 614216367Sjamie argc = 0; 615216367Sjamie for (cs = strtok(comcs, " \t\f\v\r\n"); cs; 616216367Sjamie cs = strtok(NULL, " \t\f\v\r\n")) 617216367Sjamie argv[argc++] = cs; 618216367Sjamie argv[argc] = NULL; 619214117Sjamie } 620214117Sjamie } 621223189Sjamie if (argv[0] == NULL) 622223189Sjamie return 0; 623216367Sjamie 624214117Sjamie if (int_param(j->intparams[IP_EXEC_TIMEOUT], &timeout) && 625214117Sjamie timeout != 0) { 626214117Sjamie clock_gettime(CLOCK_REALTIME, &j->timeout); 627214117Sjamie j->timeout.tv_sec += timeout; 628214117Sjamie } else 629214117Sjamie j->timeout.tv_sec = 0; 630214117Sjamie 631214117Sjamie injail = comparam == IP_EXEC_START || comparam == IP_COMMAND || 632214117Sjamie comparam == IP_EXEC_STOP; 633214117Sjamie clean = bool_param(j->intparams[IP_EXEC_CLEAN]); 634214117Sjamie username = string_param(j->intparams[injail 635214117Sjamie ? IP_EXEC_JAIL_USER : IP_EXEC_SYSTEM_USER]); 636214117Sjamie sjuser = bool_param(j->intparams[IP_EXEC_SYSTEM_JAIL_USER]); 637214117Sjamie 638214117Sjamie consfd = 0; 639214117Sjamie if (injail && 640214117Sjamie (conslog = string_param(j->intparams[IP_EXEC_CONSOLELOG]))) { 641223442Sjamie if (check_path(j, "exec.consolelog", conslog, 1, NULL) < 0) 642214797Sjamie return -1; 643214117Sjamie consfd = 644214117Sjamie open(conslog, O_WRONLY | O_CREAT | O_APPEND, DEFFILEMODE); 645214117Sjamie if (consfd < 0) { 646214117Sjamie jail_warnx(j, "open %s: %s", conslog, strerror(errno)); 647214117Sjamie return -1; 648214117Sjamie } 649214117Sjamie } 650214117Sjamie 651214117Sjamie comlen = 0; 652214117Sjamie for (i = 0; argv[i]; i++) 653214117Sjamie comlen += strlen(argv[i]) + 1; 654214117Sjamie j->comline = cs = emalloc(comlen); 655214117Sjamie for (i = 0; argv[i]; i++) { 656214117Sjamie strcpy(cs, argv[i]); 657214117Sjamie if (argv[i + 1]) { 658214117Sjamie cs += strlen(argv[i]) + 1; 659214117Sjamie cs[-1] = ' '; 660214117Sjamie } 661214117Sjamie } 662214117Sjamie if (verbose > 0) 663214117Sjamie jail_note(j, "run command%s%s%s: %s\n", 664214117Sjamie injail ? " in jail" : "", username ? " as " : "", 665214117Sjamie username ? username : "", j->comline); 666214117Sjamie 667214117Sjamie pid = fork(); 668214117Sjamie if (pid < 0) 669214117Sjamie err(1, "fork"); 670214117Sjamie if (pid > 0) { 671246804Sjamie if (bg || !add_proc(j, pid)) { 672216367Sjamie free(j->comline); 673216367Sjamie j->comline = NULL; 674223442Sjamie return 0; 675214117Sjamie } else { 676216367Sjamie paralimit--; 677223442Sjamie return 1; 678214117Sjamie } 679214117Sjamie } 680214117Sjamie if (bg) 681214117Sjamie setsid(); 682214117Sjamie 683223189Sjamie /* Set up the environment and run the command */ 684214117Sjamie pwd = NULL; 685214117Sjamie lcap = NULL; 686214117Sjamie if ((clean || username) && injail && sjuser && 687214117Sjamie get_user_info(j, username, &pwd, &lcap) < 0) 688214117Sjamie exit(1); 689214117Sjamie if (injail) { 690214117Sjamie /* jail_attach won't chdir along with its chroot. */ 691214117Sjamie path = string_param(j->intparams[KP_PATH]); 692214117Sjamie if (path && chdir(path) < 0) { 693214117Sjamie jail_warnx(j, "chdir %s: %s", path, strerror(errno)); 694214117Sjamie exit(1); 695214117Sjamie } 696214117Sjamie if (int_param(j->intparams[IP_EXEC_FIB], &fib) && 697214117Sjamie setfib(fib) < 0) { 698214117Sjamie jail_warnx(j, "setfib: %s", strerror(errno)); 699214117Sjamie exit(1); 700214117Sjamie } 701214117Sjamie if (jail_attach(j->jid) < 0) { 702214117Sjamie jail_warnx(j, "jail_attach: %s", strerror(errno)); 703214117Sjamie exit(1); 704214117Sjamie } 705214117Sjamie } 706214117Sjamie if (clean || username) { 707214117Sjamie if (!(injail && sjuser) && 708214117Sjamie get_user_info(j, username, &pwd, &lcap) < 0) 709214117Sjamie exit(1); 710214117Sjamie if (clean) { 711214117Sjamie term = getenv("TERM"); 712214117Sjamie environ = &cleanenv; 713214117Sjamie setenv("PATH", "/bin:/usr/bin", 0); 714235949Sjamie if (term != NULL) 715235949Sjamie setenv("TERM", term, 1); 716214117Sjamie } 717276277Sjamie if (setgid(pwd->pw_gid) < 0) { 718276277Sjamie jail_warnx(j, "setgid %d: %s", pwd->pw_gid, 719276277Sjamie strerror(errno)); 720276277Sjamie exit(1); 721276277Sjamie } 722214117Sjamie if (setusercontext(lcap, pwd, pwd->pw_uid, username 723214117Sjamie ? LOGIN_SETALL & ~LOGIN_SETGROUP & ~LOGIN_SETLOGIN 724214117Sjamie : LOGIN_SETPATH | LOGIN_SETENV) < 0) { 725214117Sjamie jail_warnx(j, "setusercontext %s: %s", pwd->pw_name, 726214117Sjamie strerror(errno)); 727214117Sjamie exit(1); 728214117Sjamie } 729214117Sjamie login_close(lcap); 730214117Sjamie setenv("USER", pwd->pw_name, 1); 731214117Sjamie setenv("HOME", pwd->pw_dir, 1); 732214117Sjamie setenv("SHELL", 733214117Sjamie *pwd->pw_shell ? pwd->pw_shell : _PATH_BSHELL, 1); 734214117Sjamie if (clean && chdir(pwd->pw_dir) < 0) { 735214117Sjamie jail_warnx(j, "chdir %s: %s", 736214117Sjamie pwd->pw_dir, strerror(errno)); 737214117Sjamie exit(1); 738214117Sjamie } 739214117Sjamie endpwent(); 740214117Sjamie } 741214117Sjamie 742214117Sjamie if (consfd != 0 && (dup2(consfd, 1) < 0 || dup2(consfd, 2) < 0)) { 743214117Sjamie jail_warnx(j, "exec.consolelog: %s", strerror(errno)); 744214117Sjamie exit(1); 745214117Sjamie } 746214117Sjamie closefrom(3); 747214117Sjamie execvp(argv[0], argv); 748214117Sjamie jail_warnx(j, "exec %s: %s", argv[0], strerror(errno)); 749214117Sjamie exit(1); 750214117Sjamie} 751214117Sjamie 752214117Sjamie/* 753214117Sjamie * Add a process to the hash, tied to a jail. 754214117Sjamie */ 755246804Sjamiestatic int 756214117Sjamieadd_proc(struct cfjail *j, pid_t pid) 757214117Sjamie{ 758214117Sjamie struct kevent ke; 759214117Sjamie struct cfjail *tj; 760214117Sjamie struct phash *ph; 761214117Sjamie 762214117Sjamie if (!kq && (kq = kqueue()) < 0) 763214117Sjamie err(1, "kqueue"); 764214117Sjamie EV_SET(&ke, pid, EVFILT_PROC, EV_ADD, NOTE_EXIT, 0, NULL); 765246804Sjamie if (kevent(kq, &ke, 1, NULL, 0, NULL) < 0) { 766246804Sjamie if (errno == ESRCH) 767246804Sjamie return 0; 768214117Sjamie err(1, "kevent"); 769246804Sjamie } 770214117Sjamie ph = emalloc(sizeof(struct phash)); 771214117Sjamie ph->j = j; 772214117Sjamie ph->pid = pid; 773214117Sjamie LIST_INSERT_HEAD(&phash[pid % PHASH_SIZE], ph, le); 774214117Sjamie j->nprocs++; 775216367Sjamie j->flags |= JF_SLEEPQ; 776216367Sjamie if (j->timeout.tv_sec == 0) 777216367Sjamie requeue(j, &sleeping); 778216367Sjamie else { 779293290Sbdrewery /* File the jail in the sleep queue according to its timeout. */ 780214117Sjamie TAILQ_REMOVE(j->queue, j, tq); 781214117Sjamie TAILQ_FOREACH(tj, &sleeping, tq) { 782214117Sjamie if (!tj->timeout.tv_sec || 783214117Sjamie j->timeout.tv_sec < tj->timeout.tv_sec || 784214117Sjamie (j->timeout.tv_sec == tj->timeout.tv_sec && 785214117Sjamie j->timeout.tv_nsec <= tj->timeout.tv_nsec)) { 786214117Sjamie TAILQ_INSERT_BEFORE(tj, j, tq); 787214117Sjamie break; 788214117Sjamie } 789214117Sjamie } 790214117Sjamie if (tj == NULL) 791214117Sjamie TAILQ_INSERT_TAIL(&sleeping, j, tq); 792214117Sjamie j->queue = &sleeping; 793216367Sjamie } 794246804Sjamie return 1; 795214117Sjamie} 796214117Sjamie 797214117Sjamie/* 798214117Sjamie * Remove any processes from the hash that correspond to a jail. 799214117Sjamie */ 800214117Sjamiestatic void 801214117Sjamieclear_procs(struct cfjail *j) 802214117Sjamie{ 803214117Sjamie struct kevent ke; 804214117Sjamie struct phash *ph, *tph; 805214117Sjamie int i; 806214117Sjamie 807214117Sjamie j->nprocs = 0; 808214117Sjamie for (i = 0; i < PHASH_SIZE; i++) 809214117Sjamie LIST_FOREACH_SAFE(ph, &phash[i], le, tph) 810214117Sjamie if (ph->j == j) { 811214117Sjamie EV_SET(&ke, ph->pid, EVFILT_PROC, EV_DELETE, 812214117Sjamie NOTE_EXIT, 0, NULL); 813214117Sjamie (void)kevent(kq, &ke, 1, NULL, 0, NULL); 814214117Sjamie LIST_REMOVE(ph, le); 815214117Sjamie free(ph); 816214117Sjamie } 817214117Sjamie} 818214117Sjamie 819214117Sjamie/* 820214117Sjamie * Find the jail that corresponds to an exited process. 821214117Sjamie */ 822214117Sjamiestatic struct cfjail * 823214117Sjamiefind_proc(pid_t pid) 824214117Sjamie{ 825214117Sjamie struct cfjail *j; 826214117Sjamie struct phash *ph; 827214117Sjamie 828214117Sjamie LIST_FOREACH(ph, &phash[pid % PHASH_SIZE], le) 829214117Sjamie if (ph->pid == pid) { 830214117Sjamie j = ph->j; 831214117Sjamie LIST_REMOVE(ph, le); 832214117Sjamie free(ph); 833214117Sjamie return --j->nprocs ? NULL : j; 834214117Sjamie } 835214117Sjamie return NULL; 836214117Sjamie} 837214117Sjamie 838214117Sjamie/* 839216367Sjamie * Send SIGTERM to all processes in a jail and wait for them to die. 840216367Sjamie */ 841216367Sjamiestatic int 842216367Sjamieterm_procs(struct cfjail *j) 843216367Sjamie{ 844216367Sjamie struct kinfo_proc *ki; 845216367Sjamie int i, noted, pcnt, timeout; 846216367Sjamie 847216367Sjamie static kvm_t *kd; 848216367Sjamie 849216367Sjamie if (!int_param(j->intparams[IP_STOP_TIMEOUT], &timeout)) 850216367Sjamie timeout = DEFAULT_STOP_TIMEOUT; 851216367Sjamie else if (timeout == 0) 852216367Sjamie return 0; 853216367Sjamie 854216367Sjamie if (kd == NULL) { 855231238Sjamie kd = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL); 856216367Sjamie if (kd == NULL) 857231238Sjamie return 0; 858216367Sjamie } 859216367Sjamie 860216367Sjamie ki = kvm_getprocs(kd, KERN_PROC_PROC, 0, &pcnt); 861216367Sjamie if (ki == NULL) 862231238Sjamie return 0; 863216367Sjamie noted = 0; 864216367Sjamie for (i = 0; i < pcnt; i++) 865216367Sjamie if (ki[i].ki_jid == j->jid && 866216367Sjamie kill(ki[i].ki_pid, SIGTERM) == 0) { 867246804Sjamie (void)add_proc(j, ki[i].ki_pid); 868216367Sjamie if (verbose > 0) { 869216367Sjamie if (!noted) { 870216367Sjamie noted = 1; 871216367Sjamie jail_note(j, "sent SIGTERM to:"); 872216367Sjamie } 873216367Sjamie printf(" %d", ki[i].ki_pid); 874216367Sjamie } 875216367Sjamie } 876216367Sjamie if (noted) 877216367Sjamie printf("\n"); 878216367Sjamie if (j->nprocs > 0) { 879216367Sjamie clock_gettime(CLOCK_REALTIME, &j->timeout); 880216367Sjamie j->timeout.tv_sec += timeout; 881216367Sjamie return 1; 882216367Sjamie } 883216367Sjamie return 0; 884216367Sjamie} 885216367Sjamie 886216367Sjamie/* 887214117Sjamie * Look up a user in the passwd and login.conf files. 888214117Sjamie */ 889214117Sjamiestatic int 890214117Sjamieget_user_info(struct cfjail *j, const char *username, 891214117Sjamie const struct passwd **pwdp, login_cap_t **lcapp) 892214117Sjamie{ 893214117Sjamie const struct passwd *pwd; 894214117Sjamie 895294484Sjamie errno = 0; 896214117Sjamie *pwdp = pwd = username ? getpwnam(username) : getpwuid(getuid()); 897214117Sjamie if (pwd == NULL) { 898214117Sjamie if (errno) 899214117Sjamie jail_warnx(j, "getpwnam%s%s: %s", username ? " " : "", 900214117Sjamie username ? username : "", strerror(errno)); 901214117Sjamie else if (username) 902214117Sjamie jail_warnx(j, "%s: no such user", username); 903214117Sjamie else 904214117Sjamie jail_warnx(j, "unknown uid %d", getuid()); 905214117Sjamie return -1; 906214117Sjamie } 907214117Sjamie *lcapp = login_getpwclass(pwd); 908214117Sjamie if (*lcapp == NULL) { 909214117Sjamie jail_warnx(j, "getpwclass %s: %s", pwd->pw_name, 910214117Sjamie strerror(errno)); 911214117Sjamie return -1; 912214117Sjamie } 913214117Sjamie /* Set the groups while the group file is still available */ 914214117Sjamie if (initgroups(pwd->pw_name, pwd->pw_gid) < 0) { 915214117Sjamie jail_warnx(j, "initgroups %s: %s", pwd->pw_name, 916214117Sjamie strerror(errno)); 917214117Sjamie return -1; 918214117Sjamie } 919214117Sjamie return 0; 920214117Sjamie} 921214797Sjamie 922214797Sjamie/* 923214797Sjamie * Make sure a mount or consolelog path is a valid absolute pathname 924214797Sjamie * with no symlinks. 925214797Sjamie */ 926214797Sjamiestatic int 927214805Sjamiecheck_path(struct cfjail *j, const char *pname, const char *path, int isfile, 928214805Sjamie const char *umount_type) 929214797Sjamie{ 930214805Sjamie struct stat st, mpst; 931214805Sjamie struct statfs stfs; 932214797Sjamie char *tpath, *p; 933214797Sjamie const char *jailpath; 934214797Sjamie size_t jplen; 935214797Sjamie 936214797Sjamie if (path[0] != '/') { 937214797Sjamie jail_warnx(j, "%s: %s: not an absolute pathname", 938214797Sjamie pname, path); 939214797Sjamie return -1; 940214797Sjamie } 941214797Sjamie /* 942214797Sjamie * Only check for symlinks in components below the jail's path, 943214797Sjamie * since that's where the security risk lies. 944214797Sjamie */ 945214797Sjamie jailpath = string_param(j->intparams[KP_PATH]); 946214797Sjamie if (jailpath == NULL) 947214797Sjamie jailpath = ""; 948214797Sjamie jplen = strlen(jailpath); 949214805Sjamie if (!strncmp(path, jailpath, jplen) && path[jplen] == '/') { 950214805Sjamie tpath = alloca(strlen(path) + 1); 951214805Sjamie strcpy(tpath, path); 952214805Sjamie for (p = tpath + jplen; p != NULL; ) { 953214805Sjamie p = strchr(p + 1, '/'); 954214805Sjamie if (p) 955214805Sjamie *p = '\0'; 956214805Sjamie if (lstat(tpath, &st) < 0) { 957214805Sjamie if (errno == ENOENT && isfile && !p) 958214805Sjamie break; 959214805Sjamie jail_warnx(j, "%s: %s: %s", pname, tpath, 960214805Sjamie strerror(errno)); 961214805Sjamie return -1; 962214805Sjamie } 963214805Sjamie if (S_ISLNK(st.st_mode)) { 964214805Sjamie jail_warnx(j, "%s: %s is a symbolic link", 965214805Sjamie pname, tpath); 966214805Sjamie return -1; 967214805Sjamie } 968214805Sjamie if (p) 969214805Sjamie *p = '/'; 970214805Sjamie } 971214805Sjamie } 972214805Sjamie if (umount_type != NULL) { 973214805Sjamie if (stat(path, &st) < 0 || statfs(path, &stfs) < 0) { 974214805Sjamie jail_warnx(j, "%s: %s: %s", pname, path, 975214797Sjamie strerror(errno)); 976214797Sjamie return -1; 977214797Sjamie } 978214805Sjamie if (stat(stfs.f_mntonname, &mpst) < 0) { 979214805Sjamie jail_warnx(j, "%s: %s: %s", pname, stfs.f_mntonname, 980214805Sjamie strerror(errno)); 981214797Sjamie return -1; 982214797Sjamie } 983214805Sjamie if (st.st_ino != mpst.st_ino) { 984214805Sjamie jail_warnx(j, "%s: %s: not a mount point", 985214805Sjamie pname, path); 986214805Sjamie return -1; 987214805Sjamie } 988214805Sjamie if (strcmp(stfs.f_fstypename, umount_type)) { 989214805Sjamie jail_warnx(j, "%s: %s: not a %s mount", 990214805Sjamie pname, path, umount_type); 991214805Sjamie return -1; 992214805Sjamie } 993214797Sjamie } 994214797Sjamie return 0; 995214797Sjamie} 996