bsd/kern/bsd_init.c

   1 /*
   2  * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  24  *      The Regents of the University of California.  All rights reserved.
  25  * (c) UNIX System Laboratories, Inc.
  26  * All or some portions of this file are derived from material licensed
  27  * to the University of California by American Telephone and Telegraph
  28  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  29  * the permission of UNIX System Laboratories, Inc.
  30  *
  31  * Redistribution and use in source and binary forms, with or without
  32  * modification, are permitted provided that the following conditions
  33  * are met:
  34  * 1. Redistributions of source code must retain the above copyright
  35  *    notice, this list of conditions and the following disclaimer.
  36  * 2. Redistributions in binary form must reproduce the above copyright
  37  *    notice, this list of conditions and the following disclaimer in the
  38  *    documentation and/or other materials provided with the distribution.
  39  * 3. All advertising materials mentioning features or use of this software
  40  *    must display the following acknowledgement:
  41  *      This product includes software developed by the University of
  42  *      California, Berkeley and its contributors.
  43  * 4. Neither the name of the University nor the names of its contributors
  44  *    may be used to endorse or promote products derived from this software
  45  *    without specific prior written permission.
  46  *
  47  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  48  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  50  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  51  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  52  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  53  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  55  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  56  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  57  * SUCH DAMAGE.
  58  *
  59  *      @(#)init_main.c 8.16 (Berkeley) 5/14/95
  60  */
  61
  62 /*
  63  *
  64  * Mach Operating System
  65  * Copyright (c) 1987 Carnegie-Mellon University
  66  * All rights reserved.  The CMU software License Agreement specifies
  67  * the terms and conditions for use and redistribution.
  68  */
  69
  70 #include <sys/param.h>
  71 #include <sys/filedesc.h>
  72 #include <sys/kernel.h>
  73 #include <sys/mount.h>
  74 #include <sys/proc.h>
  75 #include <sys/systm.h>
  76 #include <sys/vnode.h>
  77 #include <sys/conf.h>
  78 #include <sys/buf.h>
  79 #include <sys/clist.h>
  80 #include <sys/user.h>
  81 #include <sys/time.h>
  82 #include <sys/systm.h>
  83
  84 #include <bsm/audit_kernel.h>
  85
  86 #include <sys/malloc.h>
  87 #include <sys/dkstat.h>
  88
  89 #include <machine/spl.h>
  90 #include <kern/thread.h>
  91 #include <kern/task.h>
  92 #include <kern/ast.h>
  93
  94 #include <mach/vm_param.h>
  95
  96 #include <vm/vm_map.h>
  97 #include <vm/vm_kern.h>
  98
  99 #include <sys/ux_exception.h>   /* for ux_exception_port */
 100
 101 #include <sys/reboot.h>
 102 #include <mach/exception_types.h>
 103 #include <dev/busvar.h>                 /* for pseudo_inits */
 104 #include <sys/kdebug.h>
 105
 106 #include <mach/mach_types.h>
 107 #include <mach/vm_prot.h>
 108 #include <mach/semaphore.h>
 109 #include <mach/sync_policy.h>
 110 #include <kern/clock.h>
 111 #include <mach/kern_return.h>
 112
 113 #include <mach/shared_memory_server.h>
 114 #include <vm/vm_shared_memory_server.h>
 115
 116 extern int app_profile;         /* on/off switch for pre-heat cache */
 117
 118 char    copyright[] =
 119 "Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
 120 "The Regents of the University of California. "
 121 "All rights reserved.\n\n";
 122
 123 extern void     ux_handler();
 124
 125 /* Components of the first process -- never freed. */
 126 struct  proc proc0;
 127 struct  session session0;
 128 struct  pgrp pgrp0;
 129 struct  pcred cred0;
 130 struct  filedesc filedesc0;
 131 struct  plimit limit0;
 132 struct  pstats pstats0;
 133 struct  sigacts sigacts0;
 134 struct  proc *kernproc, *initproc;
 135
 136 long tk_cancc;
 137 long tk_nin;
 138 long tk_nout;
 139 long tk_rawcc;
 140
 141 /* Global variables to make pstat happy. We do swapping differently */
 142 int nswdev, nswap;
 143 int nswapmap;
 144 void *swapmap;
 145 struct swdevt swdevt[1];
 146
 147 dev_t   rootdev;                /* device of the root */
 148 dev_t   dumpdev;                /* device to take dumps on */
 149 long    dumplo;                 /* offset into dumpdev */
 150 long    hostid;
 151 char    hostname[MAXHOSTNAMELEN];
 152 int             hostnamelen;
 153 char    domainname[MAXDOMNAMELEN];
 154 int             domainnamelen;
 155 char    classichandler[32] = {0};
 156 long    classichandler_fsid = -1L;
 157 long    classichandler_fileid = -1L;
 158
 159 char rootdevice[16];    /* hfs device names have at least 9 chars */
 160 struct  timeval boottime;               /* GRODY!  This has to go... */
 161
 162 #ifdef  KMEMSTATS
 163 struct  kmemstats kmemstats[M_LAST];
 164 #endif
 165
 166 int     lbolt;                          /* awoken once a second */
 167 struct  vnode *rootvp;
 168 int boothowto = RB_DEBUG;
 169
 170 #define BSD_PAGABLE_MAP_SIZE    (16 * 512 * 1024)
 171 vm_map_t        bsd_pageable_map;
 172 vm_map_t        mb_map;
 173 semaphore_t execve_semaphore;
 174
 175 int     cmask = CMASK;
 176
 177 int parse_bsd_args(void);
 178 extern int bsd_hardclockinit;
 179 extern task_t bsd_init_task;
 180 extern char    init_task_failure_data[];
 181 extern void time_zone_slock_init(void);
 182
 183 funnel_t *kernel_flock;
 184 funnel_t *network_flock;
 185 int disable_funnel = 0;         /* disables split funnel */
 186 int enable_funnel = 0;          /* disables split funnel */
 187
 188 /*
 189  * Initialization code.
 190  * Called from cold start routine as
 191  * soon as a stack and segmentation
 192  * have been established.
 193  * Functions:
 194  *      turn on clock
 195  *      hand craft 0th process
 196  *      call all initialization routines
 197  *  hand craft 1st user process
 198  */
 199
 200 /*
 201  *      Sets the name for the given task.
 202  */
 203 void
 204 proc_name(s, p)
 205         char            *s;
 206         struct proc *p;
 207 {
 208         int             length = strlen(s);
 209
 210         bcopy(s, p->p_comm,
 211                 length >= sizeof(p->p_comm) ? sizeof(p->p_comm) :
 212                         length + 1);
 213 }
 214
 215 /* To allow these values to be patched, they're globals here */
 216 #include <machine/vmparam.h>
 217 struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ };
 218 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 219 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 220
 221 extern thread_t first_thread;
 222 extern thread_act_t     cloneproc(struct proc *, int);
 223 extern int      (*mountroot) __P((void));
 224 extern int      netboot_mountroot();    /* netboot.c */
 225 extern int      netboot_setup(struct proc * p);
 226
 227 /* hook called after root is mounted XXX temporary hack */
 228 void (*mountroot_post_hook)(void);
 229
 230 void
 231 bsd_init()
 232 {
 233         register struct proc *p;
 234         extern struct ucred *rootcred;
 235         register int i;
 236         int s;
 237         thread_t        th;
 238         void            lightning_bolt(void );
 239         kern_return_t   ret;
 240         boolean_t funnel_state;
 241         extern void uthread_zone_init();
 242
 243
 244         /* split funnel is enabled by default */
 245         PE_parse_boot_arg("dfnl", &disable_funnel);
 246
 247         kernel_flock = funnel_alloc(KERNEL_FUNNEL);
 248         if (kernel_flock == (funnel_t *)0 ) {
 249                 panic("bsd_init: Failed to allocate kernel funnel");
 250         }
 251
 252         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 253
 254         if (!disable_funnel) {
 255                 network_flock = funnel_alloc(NETWORK_FUNNEL);
 256                 if (network_flock == (funnel_t *)0 ) {
 257                         panic("bsd_init: Failed to allocate network funnel");
 258                 }
 259         } else {
 260                 network_flock = kernel_flock;
 261         }
 262
 263         printf(copyright);
 264
 265         kmeminit();
 266
 267         parse_bsd_args();
 268
 269         bsd_bufferinit();
 270
 271         /* Initialize the uthread zone */
 272         uthread_zone_init();
 273
 274         /*
 275          * Initialize process and pgrp structures.
 276          */
 277         procinit();
 278
 279         kernproc = &proc0;
 280
 281         p = kernproc;
 282
 283         /* kernel_task->proc = kernproc; */
 284         set_bsdtask_info(kernel_task,(void *)p);
 285         p->p_pid = 0;
 286
 287         /* give kernproc a name */
 288         proc_name("kernel_task", p);
 289
 290         if (current_task() != kernel_task)
 291                 printf("bsd_init: We have a problem, "
 292                                 "current task is not kernel task\n");
 293
 294         /*
 295          * Create process 0.
 296          */
 297         LIST_INSERT_HEAD(&allproc, p, p_list);
 298         p->p_pgrp = &pgrp0;
 299         LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
 300         LIST_INIT(&pgrp0.pg_members);
 301         LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
 302
 303         pgrp0.pg_session = &session0;
 304         session0.s_count = 1;
 305         session0.s_leader = p;
 306
 307         p->task = kernel_task;
 308
 309         p->p_stat = SRUN;
 310         p->p_flag = P_INMEM|P_SYSTEM;
 311         p->p_nice = NZERO;
 312         p->p_pptr = p;
 313         lockinit(&p->signal_lock, PVM, "signal", 0, 0);
 314         TAILQ_INIT(&p->p_uthlist);
 315         p->sigwait = FALSE;
 316         p->sigwait_thread = THREAD_NULL;
 317         p->exit_thread = THREAD_NULL;
 318
 319         /* Create credentials. */
 320         lockinit(&cred0.pc_lock, PLOCK, "proc0 cred", 0, 0);
 321         cred0.p_refcnt = 1;
 322         p->p_cred = &cred0;
 323         p->p_ucred = crget();
 324         p->p_ucred->cr_ngroups = 1;     /* group 0 */
 325
 326         TAILQ_INIT(&p->aio_activeq);
 327         TAILQ_INIT(&p->aio_doneq);
 328         p->aio_active_count = 0;
 329         p->aio_done_count = 0;
 330
 331         /* Set the audit info for this process */
 332         audit_proc_init(p);
 333
 334         /* Create the file descriptor table. */
 335         filedesc0.fd_refcnt = 1+1;      /* +1 so shutdown will not _FREE_ZONE */
 336         p->p_fd = &filedesc0;
 337         filedesc0.fd_cmask = cmask;
 338         filedesc0.fd_knlistsize = -1;
 339         filedesc0.fd_knlist = NULL;
 340         filedesc0.fd_knhash = NULL;
 341         filedesc0.fd_knhashmask = 0;
 342
 343         /* Create the limits structures. */
 344         p->p_limit = &limit0;
 345         for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
 346                 limit0.pl_rlimit[i].rlim_cur =
 347                         limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
 348         limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
 349         limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = MAXUPRC;
 350         limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
 351         limit0.pl_rlimit[RLIMIT_STACK] = vm_initial_limit_stack;
 352         limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
 353         limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
 354         limit0.p_refcnt = 1;
 355
 356         p->p_stats = &pstats0;
 357         p->p_sigacts = &sigacts0;
 358
 359         /*
 360          * Charge root for one process.
 361          */
 362         (void)chgproccnt(0, 1);
 363
 364         /*
 365          *      Allocate a kernel submap for pageable memory
 366          *      for temporary copying (execve()).
 367          */
 368         {
 369                 vm_offset_t     min;
 370
 371                 ret = kmem_suballoc(kernel_map,
 372                                 &min,
 373                                 (vm_size_t)BSD_PAGABLE_MAP_SIZE,
 374                                 TRUE,
 375                                 TRUE,
 376                                 &bsd_pageable_map);
 377                 if (ret != KERN_SUCCESS)
 378                         panic("bsd_init: Failed to allocate bsd pageable map");
 379         }
 380
 381         /* Initialize the execve() semaphore */
 382         ret = semaphore_create(kernel_task, &execve_semaphore,
 383                         SYNC_POLICY_FIFO, (BSD_PAGABLE_MAP_SIZE / NCARGS));
 384         if (ret != KERN_SUCCESS)
 385                 panic("bsd_init: Failed to create execve semaphore");
 386
 387         /*
 388          * Initialize the calendar.
 389          */
 390         IOKitResetTime();
 391
 392         ubc_init();
 393
 394         /* Initialize the file systems. */
 395         vfsinit();
 396
 397         /* Initialize mbuf's. */
 398         mbinit();
 399
 400         /* Initialize syslog */
 401         log_init();
 402
 403         /*
 404          * Initializes security event auditing.
 405          * XXX: Should/could this occur later?
 406          */
 407         audit_init();
 408
 409         /* Initialize kqueues */
 410         knote_init();
 411
 412         /* Initialize for async IO */
 413         aio_init();
 414
 415         /* POSIX Shm and Sem */
 416         pshm_cache_init();
 417         psem_cache_init();
 418         time_zone_slock_init();
 419
 420         /*
 421          * Initialize protocols.  Block reception of incoming packets
 422          * until everything is ready.
 423          */
 424         s = splimp();
 425         sysctl_register_fixed();
 426         sysctl_mib_init();
 427         dlil_init();
 428         socketinit();
 429         domaininit();
 430         splx(s);
 431
 432         p->p_fd->fd_cdir = NULL;
 433         p->p_fd->fd_rdir = NULL;
 434
 435 #ifdef GPROF
 436         /* Initialize kernel profiling. */
 437         kmstartup();
 438 #endif
 439
 440         /* kick off timeout driven events by calling first time */
 441         thread_wakeup(&lbolt);
 442         timeout((void (*)(void *))lightning_bolt, 0, hz);
 443
 444         bsd_autoconf();
 445
 446         /*
 447          * We attach the loopback interface *way* down here to ensure
 448          * it happens after autoconf(), otherwise it becomes the
 449          * "primary" interface.
 450          */
 451 #include <loop.h>
 452 #if NLOOP > 0
 453         loopattach();                   /* XXX */
 454 #endif
 455
 456         /* Register the built-in dlil ethernet interface family */
 457         ether_family_init();
 458
 459         vnode_pager_bootstrap();
 460
 461         /* Mount the root file system. */
 462         while( TRUE) {
 463                 int err;
 464
 465                 setconf();
 466                 /*
 467                  * read the time after clock_initialize_calendar()
 468                  * and before nfs mount
 469                  */
 470                 microtime((struct timeval  *)&time);
 471
 472                 bsd_hardclockinit = -1; /* start ticking */
 473
 474                 if (0 == (err = vfs_mountroot()))
 475                         break;
 476                 if (mountroot == netboot_mountroot) {
 477                         printf("cannot mount network root, errno = %d\n", err);
 478                         mountroot = NULL;
 479                         if (0 == (err = vfs_mountroot()))
 480                                 break;
 481                 }
 482                 printf("cannot mount root, errno = %d\n", err);
 483                 boothowto |= RB_ASKNAME;
 484         }
 485
 486         mountlist.cqh_first->mnt_flag |= MNT_ROOTFS;
 487
 488         /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */
 489         if (VFS_ROOT(mountlist.cqh_first, &rootvnode))
 490                 panic("bsd_init: cannot find root vnode");
 491         VREF(rootvnode);
 492         filedesc0.fd_cdir = rootvnode;
 493         VOP_UNLOCK(rootvnode, 0, p);
 494
 495         if (mountroot == netboot_mountroot) {
 496                 int err;
 497                 /* post mount setup */
 498                 if (err = netboot_setup(p)) {
 499                         panic("bsd_init: NetBoot could not find root, %d", err);
 500                 }
 501         }
 502
 503
 504         /*
 505          * Now can look at time, having had a chance to verify the time
 506          * from the file system.  Reset p->p_rtime as it may have been
 507          * munched in mi_switch() after the time got set.
 508          */
 509         p->p_stats->p_start = boottime = time;
 510         p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
 511
 512 #if DEVFS
 513         {
 514             extern void devfs_kernel_mount(char * str);
 515
 516             devfs_kernel_mount("/dev");
 517         }
 518 #endif /* DEVFS */
 519
 520         /* Initialize signal state for process 0. */
 521         siginit(p);
 522
 523         bsd_utaskbootstrap();
 524
 525         /* invoke post-root-mount hook */
 526         if (mountroot_post_hook != NULL)
 527                 mountroot_post_hook();
 528
 529         (void) thread_funnel_set(kernel_flock, funnel_state);
 530 }
 531
 532 /* Called with kernel funnel held */
 533 void
 534 bsdinit_task(void)
 535 {
 536         struct proc *p = current_proc();
 537         struct uthread *ut;
 538         kern_return_t   kr;
 539         thread_act_t th_act;
 540         shared_region_mapping_t system_region;
 541
 542         proc_name("init", p);
 543
 544         ux_handler_init();
 545
 546         th_act = current_act();
 547         (void) host_set_exception_ports(host_priv_self(),
 548                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 549                                                          EXC_MASK_MACH_SYSCALL |
 550                                                          EXC_MASK_RPC_ALERT),
 551                                         ux_exception_port,
 552                                         EXCEPTION_DEFAULT, 0);
 553
 554         (void) task_set_exception_ports(get_threadtask(th_act),
 555                                         EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
 556                                                          EXC_MASK_MACH_SYSCALL |
 557                                                          EXC_MASK_RPC_ALERT),
 558                                         ux_exception_port,
 559                                         EXCEPTION_DEFAULT, 0);
 560
 561
 562
 563
 564         ut = (uthread_t)get_bsdthread_info(th_act);
 565         ut->uu_ar0 = (void *)get_user_regs(th_act);
 566
 567         bsd_hardclockinit = 1;  /* Start bsd hardclock */
 568         bsd_init_task = get_threadtask(th_act);
 569         init_task_failure_data[0] = 0;
 570         system_region = lookup_default_shared_region(ENV_DEFAULT_ROOT,
 571                                 machine_slot[cpu_number()].cpu_type);
 572         if (system_region == NULL) {
 573                 shared_file_boot_time_init(ENV_DEFAULT_ROOT,
 574                                 machine_slot[cpu_number()].cpu_type);
 575         } else {
 576                 vm_set_shared_region(get_threadtask(th_act), system_region);
 577         }
 578         load_init_program(p);
 579         /* turn on app-profiling i.e. pre-heating */
 580         app_profile = 1;
 581 }
 582
 583 void
 584 lightning_bolt()
 585 {
 586         boolean_t       funnel_state;
 587         extern void klogwakeup(void);
 588
 589         funnel_state = thread_funnel_set(kernel_flock, TRUE);
 590
 591         thread_wakeup(&lbolt);
 592         timeout(lightning_bolt,0,hz);
 593         klogwakeup();
 594
 595         (void) thread_funnel_set(kernel_flock, FALSE);
 596 }
 597
 598 bsd_autoconf()
 599 {
 600         extern kern_return_t IOKitBSDInit( void );
 601
 602         kminit();
 603
 604         /*
 605          * Early startup for bsd pseudodevices.
 606          */
 607         {
 608             struct pseudo_init *pi;
 609
 610             for (pi = pseudo_inits; pi->ps_func; pi++)
 611                 (*pi->ps_func) (pi->ps_count);
 612         }
 613
 614         return( IOKitBSDInit());
 615 }
 616
 617
 618 #include <sys/disklabel.h>  /* for MAXPARTITIONS */
 619
 620 setconf()
 621 {
 622         extern kern_return_t IOFindBSDRoot( char * rootName,
 623                                 dev_t * root, u_int32_t * flags );
 624         u_int32_t       flags;
 625         kern_return_t   err;
 626
 627         /*
 628          * calls into IOKit can generate networking registrations
 629          * which needs to be under network funnel. Right thing to do
 630          * here is to drop the funnel alltogether and regrab it afterwards
 631          */
 632         thread_funnel_set(kernel_flock, FALSE);
 633         err = IOFindBSDRoot( rootdevice, &rootdev, &flags );
 634         thread_funnel_set(kernel_flock, TRUE);
 635         if( err) {
 636                 printf("setconf: IOFindBSDRoot returned an error (%d);"
 637                         "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
 638                 rootdev = makedev( 6, 0 );
 639                 strcpy( rootdevice, "sd0a" );
 640                 flags = 0;
 641         }
 642
 643         if( flags & 1 ) {
 644                 /* network device */
 645                 mountroot = netboot_mountroot;
 646         } else {
 647                 /* otherwise have vfs determine root filesystem */
 648                 mountroot = NULL;
 649         }
 650
 651 }
 652
 653 bsd_utaskbootstrap()
 654 {
 655         thread_act_t th_act;
 656         struct uthread *ut;
 657
 658         th_act = cloneproc(kernproc, 0);
 659         initproc = pfind(1);
 660         /* Set the launch time for init */
 661         initproc->p_stats->p_start = time;
 662
 663         ut = (struct uthread *)get_bsdthread_info(th_act);
 664         ut->uu_sigmask = 0;
 665         act_set_astbsd(th_act);
 666         (void) thread_resume(th_act);
 667 }
 668
 669 parse_bsd_args()
 670 {
 671         extern char init_args[];
 672         char    namep[16];
 673         extern int boothowto;
 674         extern int srv;
 675         extern int ncl;
 676
 677         int len;
 678
 679         if (PE_parse_boot_arg("-s", namep)) {
 680                 boothowto |= RB_SINGLE;
 681                 len = strlen(init_args);
 682                 if(len != 0)
 683                         strcat(init_args," -s");
 684                 else
 685                         strcat(init_args,"-s");
 686         }
 687
 688         if (PE_parse_boot_arg("-b", namep)) {
 689                 boothowto |= RB_NOBOOTRC;
 690                 len = strlen(init_args);
 691                 if(len != 0)
 692                         strcat(init_args," -b");
 693                 else
 694                         strcat(init_args,"-b");
 695         }
 696
 697         if (PE_parse_boot_arg("-F", namep)) {
 698                 len = strlen(init_args);
 699                 if(len != 0)
 700                         strcat(init_args," -F");
 701                 else
 702                         strcat(init_args,"-F");
 703         }
 704
 705         if (PE_parse_boot_arg("-v", namep)) {
 706                 len = strlen(init_args);
 707                 if(len != 0)
 708                         strcat(init_args," -v");
 709                 else
 710                         strcat(init_args,"-v");
 711         }
 712
 713         if (PE_parse_boot_arg("-x", namep)) { /* safe boot */
 714                 len = strlen(init_args);
 715                 if(len != 0)
 716                         strcat(init_args," -x");
 717                 else
 718                         strcat(init_args,"-x");
 719         }
 720
 721         if (PE_parse_boot_arg("-d", namep)) {
 722                 len = strlen(init_args);
 723                 if(len != 0)
 724                         strcat(init_args," -d");
 725                 else
 726                         strcat(init_args,"-d");
 727         }
 728
 729         PE_parse_boot_arg("srv", &srv);
 730         PE_parse_boot_arg("ncl", &ncl);
 731         PE_parse_boot_arg("nbuf", &nbuf);
 732
 733         return 0;
 734 }
 735
 736 boolean_t
 737 thread_funnel_switch(
 738         int     oldfnl,
 739         int     newfnl)
 740 {
 741         boolean_t       funnel_state_prev;
 742         int curfnl;
 743         funnel_t * curflock;
 744         funnel_t * oldflock;
 745         funnel_t * newflock;
 746         funnel_t * exist_funnel;
 747         extern int disable_funnel;
 748
 749
 750                 if (disable_funnel)
 751                         return(TRUE);
 752
 753         if(oldfnl == newfnl) {
 754             panic("thread_funnel_switch: can't switch to same funnel");
 755         }
 756
 757         if ((oldfnl != NETWORK_FUNNEL) && (oldfnl != KERNEL_FUNNEL)) {
 758             panic("thread_funnel_switch: invalid oldfunnel");
 759         }
 760         if ((newfnl != NETWORK_FUNNEL) && (newfnl != KERNEL_FUNNEL)) {
 761             panic("thread_funnel_switch: invalid newfunnel");
 762         }
 763
 764         if((curflock = thread_funnel_get()) == THR_FUNNEL_NULL) {
 765             panic("thread_funnel_switch: no funnel held");
 766         }
 767
 768         if ((oldfnl == NETWORK_FUNNEL) && (curflock != network_flock))
 769             panic("thread_funnel_switch: network funnel not held");
 770
 771         if ((oldfnl == KERNEL_FUNNEL) && (curflock != kernel_flock))
 772             panic("thread_funnel_switch: kernel funnel not held");
 773
 774         if(oldfnl == NETWORK_FUNNEL) {
 775             oldflock = network_flock;
 776             newflock = kernel_flock;
 777         } else {
 778             oldflock = kernel_flock;
 779             newflock = network_flock;
 780         }
 781                 KERNEL_DEBUG(0x603242c | DBG_FUNC_NONE, oldflock, 1, 0, 0, 0);
 782         thread_funnel_set(oldflock, FALSE);
 783                 KERNEL_DEBUG(0x6032428 | DBG_FUNC_NONE, newflock, 1, 0, 0, 0);
 784         thread_funnel_set(newflock, TRUE);
 785                 KERNEL_DEBUG(0x6032434 | DBG_FUNC_NONE, newflock, 1, 0, 0, 0);
 786
 787         return(TRUE);
 788 }