xnu-4903.221.2.tar.gz

[apple/xnu.git] / bsd / kern / bsd_init.c

diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c
index 7b4a41efb2175607a8e4be96f271c14271823789..23e115db01ae29a388f9897dcbd1dfdeb9ae401c 100644 (file)
--- a/bsd/kern/bsd_init.c
+++ b/bsd/kern/bsd_init.c
@@ -1,16 +1,19 @@
 /*
 /*

- * Copyright (c) 2000-2001 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2015 Apple Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in

- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.

  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -20,9 +23,9 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
- */
-/*
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ * 
+ *

  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  *     The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.
  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  *     The Regents of the University of California.  All rights reserved.
  * (c) UNIX System Laboratories, Inc.


@@ -70,45 +73,52 @@
  * the terms and conditions for use and redistribution.
  */
 /*
  * the terms and conditions for use and redistribution.
  */
 /*

- * HISTORY
- * 16-Apr-98  A. Ramesh at Apple
- *     Created for Apple Core from DR2 init_main.c.
+ * NOTICE: This file was modified by McAfee Research in 2004 to introduce
+ * support for mandatory and extensible security protections.  This notice
+ * is included in support of clause 2.2 (b) of the Apple Public License,
+ * Version 2.0.

  */
 
  */
 

-#include <quota.h>
-

 #include <sys/param.h>
 #include <sys/filedesc.h>
 #include <sys/kernel.h>
 #include <sys/param.h>
 #include <sys/filedesc.h>
 #include <sys/kernel.h>

-#include <sys/mount.h>
-#include <sys/proc.h>
+#include <sys/mount_internal.h>
+#include <sys/proc_internal.h>
+#include <sys/kauth.h>

 #include <sys/systm.h>
 #include <sys/systm.h>

-#include <sys/vnode.h>
+#include <sys/vnode_internal.h>

 #include <sys/conf.h>
 #include <sys/conf.h>

-#include <sys/buf.h>
+#include <sys/buf_internal.h>

 #include <sys/clist.h>
 #include <sys/user.h>
 #include <sys/clist.h>
 #include <sys/user.h>

-#include <ufs/ufs/quota.h>
+#include <sys/time.h>
+#include <sys/systm.h>
+#include <sys/mman.h>
+#include <sys/kasl.h>
+
+#include <security/audit/audit.h>

 
 #include <sys/malloc.h>
 #include <sys/dkstat.h>
 
 #include <sys/malloc.h>
 #include <sys/dkstat.h>

+#include <sys/codesign.h>

 
 

-#include <machine/spl.h>
+#include <kern/startup.h>

 #include <kern/thread.h>
 #include <kern/task.h>
 #include <kern/ast.h>
 #include <kern/thread.h>
 #include <kern/task.h>
 #include <kern/ast.h>

+#include <kern/kalloc.h>
+#include <kern/ux_handler.h>            /* for ux_handler_setup() */

 
 #include <mach/vm_param.h>
 
 #include <vm/vm_map.h>
 #include <vm/vm_kern.h>
 
 
 #include <mach/vm_param.h>
 
 #include <vm/vm_map.h>
 #include <vm/vm_kern.h>
 

-#include <sys/ux_exception.h>
-

 #include <sys/reboot.h>
 #include <sys/reboot.h>

-#include <mach/exception_types.h>
-#include <dev/busvar.h>
+#include <dev/busvar.h>                        /* for pseudo_inits */

 #include <sys/kdebug.h>
 #include <sys/kdebug.h>

+#include <sys/monotonic.h>
+#include <sys/reason.h>

 
 #include <mach/mach_types.h>
 #include <mach/vm_prot.h>
 
 #include <mach/mach_types.h>
 #include <mach/vm_prot.h>


@@ -116,34 +126,105 @@
 #include <mach/sync_policy.h>
 #include <kern/clock.h>
 #include <mach/kern_return.h>
 #include <mach/sync_policy.h>
 #include <kern/clock.h>
 #include <mach/kern_return.h>

+#include <mach/thread_act.h>           /* for thread_resume() */
+#include <sys/ubc_internal.h>          /* for ubc_init() */
+#include <sys/mcache.h>                        /* for mcache_init() */
+#include <sys/mbuf.h>                  /* for mbinit() */
+#include <sys/event.h>                 /* for knote_init() */
+#include <sys/eventhandler.h>          /* for eventhandler_init() */
+#include <sys/kern_memorystatus.h>     /* for memorystatus_init() */
+#include <sys/aio_kern.h>              /* for aio_init() */
+#include <sys/semaphore.h>             /* for psem_cache_init() */
+#include <net/dlil.h>                  /* for dlil_init() */
+#include <net/kpi_protocol.h>          /* for proto_kpi_init() */
+#include <net/iptap.h>                 /* for iptap_init() */
+#include <sys/pipe.h>                  /* for pipeinit() */
+#include <sys/socketvar.h>             /* for socketinit() */
+#include <sys/protosw.h>               /* for domaininit() */
+#include <kern/sched_prim.h>           /* for thread_wakeup() */
+#include <net/if_ether.h>              /* for ether_family_init() */
+#include <net/if_gif.h>                        /* for gif_init() */
+#include <vm/vm_protos.h>              /* for vnode_pager_bootstrap() */
+#include <miscfs/devfs/devfsdefs.h>    /* for devfs_kernel_mount() */
+#include <vm/vm_kern.h>                        /* for kmem_suballoc() */
+#include <sys/semaphore.h>             /* for psem_lock_init() */
+#include <sys/msgbuf.h>                        /* for log_setsize() */
+#include <sys/tty.h>                   /* for tty_init() */
+#include <sys/proc_uuid_policy.h>      /* proc_uuid_policy_init() */
+#include <netinet/flow_divert.h>       /* flow_divert_init() */
+#include <net/content_filter.h>                /* for cfil_init() */
+#include <net/necp.h>                  /* for necp_init() */
+#include <net/network_agent.h>         /* for netagent_init() */
+#include <net/packet_mangler.h>                /* for pkt_mnglr_init() */
+#include <net/if_utun.h>               /* for utun_register_control() */
+#include <net/if_ipsec.h>              /* for ipsec_register_control() */
+#include <net/net_str_id.h>            /* for net_str_id_init() */
+#include <net/netsrc.h>                        /* for netsrc_init() */
+#include <net/ntstat.h>                        /* for nstat_init() */
+#include <netinet/tcp_cc.h>                    /* for tcp_cc_init() */
+#include <netinet/mptcp_var.h>         /* for mptcp_control_register() */
+#include <net/nwk_wq.h>                        /* for nwk_wq_init */
+#include <kern/assert.h>               /* for assert() */
+#include <sys/kern_overrides.h>                /* for init_system_override() */
+
+#include <net/init.h>
+
+#if CONFIG_MACF
+#include <security/mac_framework.h>
+#include <security/mac_internal.h>     /* mac_init_bsd() */
+#include <security/mac_mach_internal.h>        /* mac_update_task_label() */
+#endif
+
+#include <machine/exec.h>
+
+#if NFSCLIENT
+#include <sys/netboot.h>
+#endif

 
 

-#include <mach/shared_memory_server.h>
-#include <vm/vm_shared_memory_server.h>
+#if CONFIG_IMAGEBOOT
+#include <sys/imageboot.h>
+#endif

 
 

-extern shared_region_mapping_t       system_shared_region;
-extern int app_profile;                /* on/off switch for pre-heat cache */
+#if PFLOG
+#include <net/if_pflog.h>
+#endif

 
 

-char    copyright[] =
-"Copyright (c) 1982, 1986, 1989, 1991, 1993\n\tThe Regents of the University of California.  All rights reserved.\n\n";

 
 

-extern void    ux_handler();
+#include <pexpert/pexpert.h>
+#include <machine/pal_routines.h>
+#include <console/video_console.h>
+
+#if CONFIG_XNUPOST
+#include <tests/xnupost.h>
+#endif
+
+void * get_user_regs(thread_t);                /* XXX kludge for <machine/thread.h> */
+void IOKitInitializeTime(void);                /* XXX */
+void IOSleep(unsigned int);            /* XXX */
+void loopattach(void);                 /* XXX */
+
+const char    copyright[] =
+"Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
+"The Regents of the University of California. "
+"All rights reserved.\n\n";

 
 /* Components of the first process -- never freed. */
 struct proc proc0;
 struct session session0;
 struct pgrp pgrp0;
 
 /* Components of the first process -- never freed. */
 struct proc proc0;
 struct session session0;
 struct pgrp pgrp0;

-struct pcred cred0;

 struct filedesc filedesc0;
 struct plimit limit0;
 struct pstats pstats0;
 struct sigacts sigacts0;
 struct filedesc filedesc0;
 struct plimit limit0;
 struct pstats pstats0;
 struct sigacts sigacts0;

-struct proc *kernproc, *initproc;
+proc_t kernproc;
+proc_t initproc;

 
 long tk_cancc;
 long tk_nin;
 long tk_nout;
 long tk_rawcc;
 
 
 long tk_cancc;
 long tk_nin;
 long tk_nout;
 long tk_rawcc;
 

+int lock_trace = 0;

 /* Global variables to make pstat happy. We do swapping differently */
 int nswdev, nswap;
 int nswapmap;
 /* Global variables to make pstat happy. We do swapping differently */
 int nswdev, nswap;
 int nswapmap;


@@ -155,38 +236,125 @@ dev_t    dumpdev;                /* device to take dumps on */
 long   dumplo;                 /* offset into dumpdev */
 long   hostid;
 char   hostname[MAXHOSTNAMELEN];
 long   dumplo;                 /* offset into dumpdev */
 long   hostid;
 char   hostname[MAXHOSTNAMELEN];

-int    hostnamelen;
+int            hostnamelen;

 char   domainname[MAXDOMNAMELEN];
 char   domainname[MAXDOMNAMELEN];

-int    domainnamelen;
+int            domainnamelen;

 
 

-char rootdevice[16];   /* hfs device names have at least 9 chars */
-struct timeval boottime;               /* GRODY!  This has to go... */
+char rootdevice[DEVMAXNAMESIZE];

 
 

-#ifdef  KMEMSTATS
+#if  KMEMSTATS

 struct kmemstats kmemstats[M_LAST];
 #endif
 
 struct kmemstats kmemstats[M_LAST];
 #endif
 

-int    lbolt;                          /* awoken once a second */

 struct vnode *rootvp;
 int boothowto = RB_DEBUG;
 struct vnode *rootvp;
 int boothowto = RB_DEBUG;

+int minimalboot = 0;
+#if CONFIG_EMBEDDED
+int darkboot = 0;
+#endif
+
+#if PROC_REF_DEBUG
+__private_extern__ int proc_ref_tracking_disabled = 0; /* disable panics on leaked proc refs across syscall boundary */
+#endif
+
+#if OS_REASON_DEBUG
+__private_extern__ int os_reason_debug_disabled = 0; /* disable asserts for when we fail to allocate OS reasons */
+#endif
+
+extern kern_return_t IOFindBSDRoot(char *, unsigned int, dev_t *, u_int32_t *);
+extern void IOSecureBSDRoot(const char * rootName);
+extern kern_return_t IOKitBSDInit(void );
+extern void kminit(void);
+extern void file_lock_init(void);
+extern void kmeminit(void);
+extern void bsd_bufferinit(void);
+extern void oslog_setsize(int size);
+extern void throttle_init(void);
+extern void acct_init(void);
+
+extern int serverperfmode;
+extern int ncl;

 
 

-#define        BSD_PAGABLE_MAP_SIZE    (4 * 512 * 1024)

 vm_map_t       bsd_pageable_map;
 vm_map_t       mb_map;
 vm_map_t       bsd_pageable_map;
 vm_map_t       mb_map;

-semaphore_t execve_semaphore;
+
+static  int bsd_simul_execs;
+static int bsd_pageable_map_size;
+__private_extern__ int execargs_cache_size = 0;
+__private_extern__ int execargs_free_count = 0;
+__private_extern__ vm_offset_t * execargs_cache = NULL;
+
+void bsd_exec_setup(int);
+
+#if __arm64__
+__private_extern__ int bootarg_no64exec = 0;
+#endif
+#if __x86_64__
+__private_extern__ int bootarg_no32exec = 0;
+#endif
+__private_extern__ int bootarg_vnode_cache_defeat = 0;
+
+#if CONFIG_JETSAM && (DEVELOPMENT || DEBUG)
+__private_extern__ int bootarg_no_vnode_jetsam = 0;
+#endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
+
+/*
+ * Prevent kernel-based ASLR from being used, for testing.
+ */
+#if DEVELOPMENT || DEBUG
+__private_extern__ int bootarg_disable_aslr = 0;
+#endif
+
+/*
+ * Allow an alternate dyld to be used for testing.
+ */
+
+#if DEVELOPMENT || DEBUG
+char dyld_alt_path[MAXPATHLEN];
+int use_alt_dyld = 0;
+#endif

 
 int    cmask = CMASK;
 
 int    cmask = CMASK;

+extern int customnbuf;
+
+kern_return_t bsd_autoconf(void);
+void bsd_utaskbootstrap(void);

 
 

-int parse_bsd_args(void);
-extern int bsd_hardclockinit;
-extern task_t bsd_init_task;
-extern char    init_task_failure_data[];
+static void parse_bsd_args(void);
+#if CONFIG_DEV_KMEM
+extern void dev_kmem_init(void);
+#endif

 extern void time_zone_slock_init(void);
 extern void time_zone_slock_init(void);

+extern void select_waitq_init(void);
+static void process_name(const char *, proc_t);
+
+static void setconf(void);
+
+#if SYSV_SHM
+extern void sysv_shm_lock_init(void);
+#endif
+#if SYSV_SEM
+extern void sysv_sem_lock_init(void);
+#endif
+#if SYSV_MSG
+extern void sysv_msg_lock_init(void);
+#endif

 
 

-funnel_t * kernel_flock;
-funnel_t * network_flock;
-int disable_funnel = 0;                /* disables split funnel */
-int enable_funnel = 0;         /* disables split funnel */
+extern void ulock_initialize(void);
+
+#if CONFIG_MACF
+#if defined (__i386__) || defined (__x86_64__)
+/* MACF policy_check configuration flags; see policy_check.c for details */
+int policy_check_flags = 0;
+
+extern int check_policy_init(int);
+#endif
+#endif /* CONFIG_MACF */
+
+/* If we are using CONFIG_DTRACE */
+#if CONFIG_DTRACE
+       extern void dtrace_postinit(void);
+#endif

 
 /*
  * Initialization code.
 
 /*
  * Initialization code.


@@ -194,175 +362,339 @@ int enable_funnel = 0;          /* disables split funnel */
  * soon as a stack and segmentation
  * have been established.
  * Functions:
  * soon as a stack and segmentation
  * have been established.
  * Functions:

- *     clear and free user core

  *     turn on clock
  *     hand craft 0th process
  *     call all initialization routines
  *     turn on clock
  *     hand craft 0th process
  *     call all initialization routines

- *     fork - process 0 to schedule
- *          - process 1 execute bootstrap
- *          - process 2 to page out
+ *  hand craft 1st user process

  */
 
 /*
  *     Sets the name for the given task.
  */
  */
 
 /*
  *     Sets the name for the given task.
  */

-void
-proc_name(s, p)
-       char            *s;
-       struct proc *p;
+static void
+process_name(const char *s, proc_t p)

 {
 {

-       int             length = strlen(s);
-
-       bcopy(s, p->p_comm,
-               length >= sizeof(p->p_comm) ? sizeof(p->p_comm) :
-                       length + 1);
+       strlcpy(p->p_comm, s, sizeof(p->p_comm));
+       strlcpy(p->p_name, s, sizeof(p->p_name));

 }
 
 /* To allow these values to be patched, they're globals here */
 #include <machine/vmparam.h>
 }
 
 /* To allow these values to be patched, they're globals here */
 #include <machine/vmparam.h>

-struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ };
+struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ - PAGE_MAX_SIZE };

 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 
 struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
 struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
 

-extern thread_t first_thread;
-extern thread_act_t    cloneproc(struct proc *, int);
-extern int     (*mountroot) __P((void));
-extern int     netboot_mountroot();    /* netboot.c */
-extern int     netboot_setup(struct proc * p);
+extern thread_t        cloneproc(task_t, coalition_t, proc_t, int, int);
+extern int     (*mountroot)(void);
+
+lck_grp_t * proc_lck_grp;
+lck_grp_t * proc_slock_grp;
+lck_grp_t * proc_fdmlock_grp;
+lck_grp_t * proc_kqhashlock_grp;
+lck_grp_t * proc_knhashlock_grp;
+lck_grp_t * proc_ucred_mlock_grp;
+lck_grp_t * proc_mlock_grp;
+lck_grp_attr_t * proc_lck_grp_attr;
+lck_attr_t * proc_lck_attr;
+lck_mtx_t * proc_list_mlock;
+lck_mtx_t * proc_klist_mlock;
+
+#if CONFIG_XNUPOST
+lck_grp_t * sysctl_debug_test_stackshot_owner_grp;
+lck_mtx_t * sysctl_debug_test_stackshot_owner_init_mtx;
+#endif /* !CONFIG_XNUPOST */
+
+extern lck_mtx_t * execargs_cache_lock;

 
 /* hook called after root is mounted XXX temporary hack */
 void (*mountroot_post_hook)(void);
 
 /* hook called after root is mounted XXX temporary hack */
 void (*mountroot_post_hook)(void);

+void (*unmountroot_pre_hook)(void);

 
 

+/*
+ * This function is called before IOKit initialization, so that globals
+ * like the sysctl tree are initialized before kernel extensions
+ * are started (since they may want to register sysctls
+ */

 void
 void

-bsd_init()
+bsd_early_init(void)

 {
 {

-       register struct proc *p;
-       extern struct ucred *rootcred;
-       register int i;
-       int s;
-       thread_t        th;
-       void            lightning_bolt(void );
-       kern_return_t   ret;
-       boolean_t funnel_state;
-       extern void uthread_zone_init();
-
+       sysctl_early_init();
+}

 
 

+/*
+ * This function is called very early on in the Mach startup, from the
+ * function start_kernel_threads() in osfmk/kern/startup.c.  It's called
+ * in the context of the current (startup) task using a call to the
+ * function kernel_thread_create() to jump into start_kernel_threads().
+ * Internally, kernel_thread_create() calls thread_create_internal(),
+ * which calls uthread_alloc().  The function of uthread_alloc() is
+ * normally to allocate a uthread structure, and fill out the uu_sigmask,
+ * uu_context fields.  It skips filling these out in the case of the "task"
+ * being "kernel_task", because the order of operation is inverted.  To
+ * account for that, we need to manually fill in at least the contents
+ * of the uu_context.vc_ucred field so that the uthread structure can be
+ * used like any other.
+ */

 
 

-#if 1
-       /* split funnel is enabled by default */
-       PE_parse_boot_arg("dfnl", &disable_funnel);
-#else
-       /* split funnel is disabled befault */
-       disable_funnel = 1;
-       PE_parse_boot_arg("efnl", &enable_funnel);
-       if (enable_funnel)  {
-                       /* enable only if efnl is set in bootarg */
-                       disable_funnel = 0;
-       }
+void
+bsd_init(void)
+{
+       struct uthread *ut;
+       unsigned int i;
+       struct vfs_context context;
+       kern_return_t   ret;
+       struct ucred temp_cred;
+       struct posix_cred temp_pcred;
+#if NFSCLIENT || CONFIG_IMAGEBOOT
+       boolean_t       netboot = FALSE;

 #endif
 
 #endif
 

-       kernel_flock = funnel_alloc(KERNEL_FUNNEL);
-       if (kernel_flock == (funnel_t *)0 ) {
-               panic("bsd_init: Failed to allocate kernel funnel");
-       }
-        
-       funnel_state = thread_funnel_set(kernel_flock, TRUE);
+#define bsd_init_kprintf(x...) /* kprintf("bsd_init: " x) */

 
 

-       if (!disable_funnel) {
-               network_flock = funnel_alloc(NETWORK_FUNNEL);
-               if (network_flock == (funnel_t *)0 ) {
-                       panic("bsd_init: Failed to allocate network funnel");
-               }
-       } else {
-               network_flock = kernel_flock;
-       }
+       throttle_init();

 
        printf(copyright);
 
        printf(copyright);

-
+       
+       bsd_init_kprintf("calling kmeminit\n");

        kmeminit();
        
        kmeminit();
        

+       bsd_init_kprintf("calling parse_bsd_args\n");

        parse_bsd_args();
 
        parse_bsd_args();
 

-       bsd_bufferinit();
+#if CONFIG_DEV_KMEM
+       bsd_init_kprintf("calling dev_kmem_init\n");
+       dev_kmem_init();
+#endif

 
 

-       /* Initialize the uthread zone */
-       uthread_zone_init();
+       /* Initialize kauth subsystem before instancing the first credential */
+       bsd_init_kprintf("calling kauth_init\n");
+       kauth_init();

 
 

-       /*
-        * Initialize process and pgrp structures.
-        */
+       /* Initialize process and pgrp structures. */
+       bsd_init_kprintf("calling procinit\n");

        procinit();
 
        procinit();
 

-       kernproc = &proc0;
+       /* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/
+       tty_init();

 
 

-       p = kernproc;
+       kernproc = &proc0;      /* implicitly bzero'ed */

 
        /* kernel_task->proc = kernproc; */
 
        /* kernel_task->proc = kernproc; */

-       set_bsdtask_info(kernel_task,(void *)p);
-       p->p_pid = 0;
+       set_bsdtask_info(kernel_task,(void *)kernproc);

 
        /* give kernproc a name */
 
        /* give kernproc a name */

-       proc_name("kernel_task", p);
+       bsd_init_kprintf("calling process_name\n");
+       process_name("kernel_task", kernproc);
+
+       /* allocate proc lock group attribute and group */
+       bsd_init_kprintf("calling lck_grp_attr_alloc_init\n");
+       proc_lck_grp_attr= lck_grp_attr_alloc_init();
+
+       proc_lck_grp = lck_grp_alloc_init("proc",  proc_lck_grp_attr);
+
+#if CONFIG_FINE_LOCK_GROUPS
+       proc_slock_grp = lck_grp_alloc_init("proc-slock",  proc_lck_grp_attr);
+       proc_ucred_mlock_grp = lck_grp_alloc_init("proc-ucred-mlock",  proc_lck_grp_attr);
+       proc_mlock_grp = lck_grp_alloc_init("proc-mlock",  proc_lck_grp_attr);
+       proc_fdmlock_grp = lck_grp_alloc_init("proc-fdmlock",  proc_lck_grp_attr);
+#endif
+       proc_kqhashlock_grp = lck_grp_alloc_init("proc-kqhashlock",  proc_lck_grp_attr);
+       proc_knhashlock_grp = lck_grp_alloc_init("proc-knhashlock",  proc_lck_grp_attr);
+#if CONFIG_XNUPOST
+       sysctl_debug_test_stackshot_owner_grp = lck_grp_alloc_init("test-stackshot-owner-grp", LCK_GRP_ATTR_NULL);
+       sysctl_debug_test_stackshot_owner_init_mtx = lck_mtx_alloc_init(
+                                                       sysctl_debug_test_stackshot_owner_grp, 
+                                                       LCK_ATTR_NULL);
+#endif /* !CONFIG_XNUPOST */
+       /* Allocate proc lock attribute */
+       proc_lck_attr = lck_attr_alloc_init();
+#if 0
+#if __PROC_INTERNAL_DEBUG
+       lck_attr_setdebug(proc_lck_attr);
+#endif
+#endif
+
+#if CONFIG_FINE_LOCK_GROUPS
+       proc_list_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr);
+       proc_klist_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_mlock, proc_mlock_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_fdmlock, proc_fdmlock_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_ucred_mlock, proc_ucred_mlock_grp, proc_lck_attr);
+       lck_spin_init(&kernproc->p_slock, proc_slock_grp, proc_lck_attr);
+#else
+       proc_list_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
+       proc_klist_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_mlock, proc_lck_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_fdmlock, proc_lck_grp, proc_lck_attr);
+       lck_mtx_init(&kernproc->p_ucred_mlock, proc_lck_grp, proc_lck_attr);
+       lck_spin_init(&kernproc->p_slock, proc_lck_grp, proc_lck_attr);
+#endif

 
 

+       assert(bsd_simul_execs != 0);
+       execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
+       execargs_cache_size = bsd_simul_execs;
+       execargs_free_count = bsd_simul_execs;
+       execargs_cache = (vm_offset_t *)kalloc(bsd_simul_execs * sizeof(vm_offset_t));
+       bzero(execargs_cache, bsd_simul_execs * sizeof(vm_offset_t));
+       

        if (current_task() != kernel_task)
                printf("bsd_init: We have a problem, "
                                "current task is not kernel task\n");
        
        if (current_task() != kernel_task)
                printf("bsd_init: We have a problem, "
                                "current task is not kernel task\n");
        

+       bsd_init_kprintf("calling get_bsdthread_info\n");
+       ut = (uthread_t)get_bsdthread_info(current_thread());
+
+#if CONFIG_MACF
+       /*
+        * Initialize the MAC Framework
+        */
+       mac_policy_initbsd();
+
+#if defined (__i386__) || defined (__x86_64__)
+       /*
+        * We currently only support this on i386/x86_64, as that is the
+        * only lock code we have instrumented so far.
+        */
+       check_policy_init(policy_check_flags);
+#endif
+#endif /* MAC */
+
+       ulock_initialize();
+

        /*
         * Create process 0.
         */
        /*
         * Create process 0.
         */

-       LIST_INSERT_HEAD(&allproc, p, p_list);
-       p->p_pgrp = &pgrp0;
+       proc_list_lock();
+       LIST_INSERT_HEAD(&allproc, kernproc, p_list);
+       kernproc->p_pgrp = &pgrp0;

        LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
        LIST_INIT(&pgrp0.pg_members);
        LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
        LIST_INIT(&pgrp0.pg_members);

-       LIST_INSERT_HEAD(&pgrp0.pg_members, p, p_pglist);
+#ifdef CONFIG_FINE_LOCK_GROUPS
+       lck_mtx_init(&pgrp0.pg_mlock, proc_mlock_grp, proc_lck_attr);
+#else
+       lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr);
+#endif
+       /* There is no other bsd thread this point and is safe without pgrp lock */
+       LIST_INSERT_HEAD(&pgrp0.pg_members, kernproc, p_pglist);
+       kernproc->p_listflag |= P_LIST_INPGRP;
+       kernproc->p_pgrpid = 0;
+       kernproc->p_uniqueid = 0;

 
        pgrp0.pg_session = &session0;
 
        pgrp0.pg_session = &session0;

+       pgrp0.pg_membercnt = 1;
+

        session0.s_count = 1;
        session0.s_count = 1;

-       session0.s_leader = p;
+       session0.s_leader = kernproc;
+       session0.s_listflags = 0;
+#ifdef CONFIG_FINE_LOCK_GROUPS
+       lck_mtx_init(&session0.s_mlock, proc_mlock_grp, proc_lck_attr);
+#else
+       lck_mtx_init(&session0.s_mlock, proc_lck_grp, proc_lck_attr);
+#endif
+       LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash);
+       proc_list_unlock();
+
+#if CONFIG_PERSONAS
+       kernproc->p_persona = NULL;
+#endif
+
+       kernproc->task = kernel_task;
+       
+       kernproc->p_stat = SRUN;
+       kernproc->p_flag = P_SYSTEM;
+       kernproc->p_lflag = 0;
+       kernproc->p_ladvflag = 0;
+
+#if defined(__LP64__)
+       kernproc->p_flag |= P_LP64;
+#endif
+
+#if DEVELOPMENT || DEBUG
+       if (bootarg_disable_aslr)
+               kernproc->p_flag |= P_DISABLE_ASLR;
+#endif
+
+       kernproc->p_nice = NZERO;
+       kernproc->p_pptr = kernproc;
+
+       TAILQ_INIT(&kernproc->p_uthlist);
+       TAILQ_INSERT_TAIL(&kernproc->p_uthlist, ut, uu_list);
+       
+       kernproc->sigwait = FALSE;
+       kernproc->sigwait_thread = THREAD_NULL;
+       kernproc->exit_thread = THREAD_NULL;
+       kernproc->p_csflags = CS_VALID;

 
 

-       p->task = kernel_task;
+       /*
+        * Create credential.  This also Initializes the audit information.
+        */
+       bsd_init_kprintf("calling bzero\n");
+       bzero(&temp_cred, sizeof(temp_cred));
+       bzero(&temp_pcred, sizeof(temp_pcred));
+       temp_pcred.cr_ngroups = 1;
+       /* kern_proc, shouldn't call up to DS for group membership */
+       temp_pcred.cr_flags = CRF_NOMEMBERD;
+       temp_cred.cr_audit.as_aia_p = audit_default_aia_p;

        
        

-       p->p_stat = SRUN;
-       p->p_flag = P_INMEM|P_SYSTEM;
-       p->p_nice = NZERO;
-       p->p_pptr = p;
-       lockinit(&p->signal_lock, PVM, "signal", 0, 0);
-       TAILQ_INIT(&p->p_uthlist);
-       p->sigwait = FALSE;
-       p->sigwait_thread = THREAD_NULL;
-       p->exit_thread = THREAD_NULL;
-
-       /* Create credentials. */
-       lockinit(&cred0.pc_lock, PLOCK, "proc0 cred", 0, 0);
-       cred0.p_refcnt = 1;
-       p->p_cred = &cred0;
-       p->p_ucred = crget();
-       p->p_ucred->cr_ngroups = 1;     /* group 0 */
+       bsd_init_kprintf("calling kauth_cred_create\n");
+       /*
+        * We have to label the temp cred before we create from it to
+        * properly set cr_ngroups, or the create will fail.
+        */
+       posix_cred_label(&temp_cred, &temp_pcred);
+       kernproc->p_ucred = kauth_cred_create(&temp_cred); 
+
+       /* update cred on proc */
+       PROC_UPDATE_CREDS_ONPROC(kernproc);
+
+       /* give the (already exisiting) initial thread a reference on it */
+       bsd_init_kprintf("calling kauth_cred_ref\n");
+       kauth_cred_ref(kernproc->p_ucred);
+       ut->uu_context.vc_ucred = kernproc->p_ucred;
+       ut->uu_context.vc_thread = current_thread();
+
+       TAILQ_INIT(&kernproc->p_aio_activeq);
+       TAILQ_INIT(&kernproc->p_aio_doneq);
+       kernproc->p_aio_total_count = 0;
+       kernproc->p_aio_active_count = 0;
+
+       bsd_init_kprintf("calling file_lock_init\n");
+       file_lock_init();
+
+#if CONFIG_MACF
+       mac_cred_label_associate_kernel(kernproc->p_ucred);
+#endif

 
        /* Create the file descriptor table. */
 
        /* Create the file descriptor table. */

-       filedesc0.fd_refcnt = 1+1;      /* +1 so shutdown will not _FREE_ZONE */
-       p->p_fd = &filedesc0;
+       kernproc->p_fd = &filedesc0;

        filedesc0.fd_cmask = cmask;
        filedesc0.fd_cmask = cmask;

+       filedesc0.fd_knlistsize = -1;
+       filedesc0.fd_knlist = NULL;
+       filedesc0.fd_knhash = NULL;
+       filedesc0.fd_knhashmask = 0;
+       lck_mtx_init(&filedesc0.fd_kqhashlock, proc_kqhashlock_grp, proc_lck_attr);
+       lck_mtx_init(&filedesc0.fd_knhashlock, proc_knhashlock_grp, proc_lck_attr);

 
        /* Create the limits structures. */
 
        /* Create the limits structures. */

-       p->p_limit = &limit0;
-       for (i = 0; i < sizeof(p->p_rlimit)/sizeof(p->p_rlimit[0]); i++)
+       kernproc->p_limit = &limit0;
+       for (i = 0; i < sizeof(kernproc->p_rlimit)/sizeof(kernproc->p_rlimit[0]); i++)

                limit0.pl_rlimit[i].rlim_cur = 
                        limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
        limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
                limit0.pl_rlimit[i].rlim_cur = 
                        limit0.pl_rlimit[i].rlim_max = RLIM_INFINITY;
        limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;

-       limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = MAXUPRC;
+       limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = maxprocperuid;
+       limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;

        limit0.pl_rlimit[RLIMIT_STACK] = vm_initial_limit_stack;
        limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
        limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
        limit0.pl_rlimit[RLIMIT_STACK] = vm_initial_limit_stack;
        limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
        limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;

-       limit0.p_refcnt = 1;
+       limit0.pl_refcnt = 1;

 
 

-       p->p_stats = &pstats0;
-       p->p_sigacts = &sigacts0;
+       kernproc->p_stats = &pstats0;
+       kernproc->p_sigacts = &sigacts0;

 
        /*
 
        /*

-        * Charge root for one process.
+        * Charge root for one process: launchd.

         */
         */

+       bsd_init_kprintf("calling chgproccnt\n");

        (void)chgproccnt(0, 1);
 
        /*
        (void)chgproccnt(0, 1);
 
        /*


@@ -370,71 +702,181 @@ bsd_init()
         *      for temporary copying (execve()).
         */
        {
         *      for temporary copying (execve()).
         */
        {

-               vm_offset_t     min;
+               vm_offset_t     minimum;

 
 

+               bsd_init_kprintf("calling kmem_suballoc\n");
+               assert(bsd_pageable_map_size != 0);

                ret = kmem_suballoc(kernel_map,
                ret = kmem_suballoc(kernel_map,

-                               &min,
-                               (vm_size_t)BSD_PAGABLE_MAP_SIZE,
-                               TRUE,
+                               &minimum,
+                               (vm_size_t)bsd_pageable_map_size,

                                TRUE,
                                TRUE,

+                               VM_FLAGS_ANYWHERE,
+                               VM_MAP_KERNEL_FLAGS_NONE,
+                               VM_KERN_MEMORY_BSD,

                                &bsd_pageable_map);
                if (ret != KERN_SUCCESS) 
                        panic("bsd_init: Failed to allocate bsd pageable map");
        }
 
                                &bsd_pageable_map);
                if (ret != KERN_SUCCESS) 
                        panic("bsd_init: Failed to allocate bsd pageable map");
        }
 

-       /* Initialize the execve() semaphore */
-       ret = semaphore_create(kernel_task, &execve_semaphore,
-                       SYNC_POLICY_FIFO, (BSD_PAGABLE_MAP_SIZE / NCARGS));
-       if (ret != KERN_SUCCESS)
-               panic("bsd_init: Failed to create execve semaphore");
+       bsd_init_kprintf("calling fpxlog_init\n");
+       fpxlog_init();
+
+       /*
+        * Initialize buffers and hash links for buffers
+        *
+        * SIDE EFFECT: Starts a thread for bcleanbuf_thread(), so must
+        *              happen after a credential has been associated with
+        *              the kernel task.
+        */
+       bsd_init_kprintf("calling bsd_bufferinit\n");
+       bsd_bufferinit();

 
        /*
         * Initialize the calendar.
         */
 
        /*
         * Initialize the calendar.
         */

-       IOKitResetTime();
+       bsd_init_kprintf("calling IOKitInitializeTime\n");
+       IOKitInitializeTime();

 
 

+       bsd_init_kprintf("calling ubc_init\n");

        ubc_init();
 
        /* Initialize the file systems. */
        ubc_init();
 
        /* Initialize the file systems. */

+       bsd_init_kprintf("calling vfsinit\n");

        vfsinit();
 
        vfsinit();
 

+#if CONFIG_PROC_UUID_POLICY
+       /* Initial proc_uuid_policy subsystem */
+       bsd_init_kprintf("calling proc_uuid_policy_init()\n");
+       proc_uuid_policy_init();
+#endif
+
+#if SOCKETS
+       /* Initialize per-CPU cache allocator */
+       mcache_init();
+

        /* Initialize mbuf's. */
        /* Initialize mbuf's. */

+       bsd_init_kprintf("calling mbinit\n");

        mbinit();
        mbinit();

+       net_str_id_init(); /* for mbuf tags */
+#endif /* SOCKETS */
+
+       /*
+        * Initializes security event auditing.
+        * XXX: Should/could this occur later?
+        */
+#if CONFIG_AUDIT
+       bsd_init_kprintf("calling audit_init\n");
+       audit_init();  
+#endif
+
+       /* Initialize kqueues */
+       bsd_init_kprintf("calling knote_init\n");
+       knote_init();
+
+       /* Initialize event handler */
+       bsd_init_kprintf("calling eventhandler_init\n");
+       eventhandler_init();

 
 

-       /* Initialize syslog */
-       log_init();
+       /* Initialize for async IO */
+       bsd_init_kprintf("calling aio_init\n");
+       aio_init();
+
+       /* Initialize pipes */
+       bsd_init_kprintf("calling pipeinit\n");
+       pipeinit();
+
+       /* Initialize SysV shm subsystem locks; the subsystem proper is
+        * initialized through a sysctl.
+        */
+#if SYSV_SHM
+       bsd_init_kprintf("calling sysv_shm_lock_init\n");
+       sysv_shm_lock_init();
+#endif
+#if SYSV_SEM
+       bsd_init_kprintf("calling sysv_sem_lock_init\n");
+       sysv_sem_lock_init();
+#endif
+#if SYSV_MSG
+       bsd_init_kprintf("sysv_msg_lock_init\n");
+       sysv_msg_lock_init();
+#endif
+       bsd_init_kprintf("calling pshm_lock_init\n");
+       pshm_lock_init();
+       bsd_init_kprintf("calling psem_lock_init\n");
+       psem_lock_init();

 
 

+       pthread_init();

        /* POSIX Shm and Sem */
        /* POSIX Shm and Sem */

+       bsd_init_kprintf("calling pshm_cache_init\n");

        pshm_cache_init();
        pshm_cache_init();

+       bsd_init_kprintf("calling psem_cache_init\n");

        psem_cache_init();
        psem_cache_init();

+       bsd_init_kprintf("calling time_zone_slock_init\n");

        time_zone_slock_init();
        time_zone_slock_init();

+       bsd_init_kprintf("calling select_waitq_init\n");
+       select_waitq_init();

 
        /*
         * Initialize protocols.  Block reception of incoming packets
         * until everything is ready.
         */
 
        /*
         * Initialize protocols.  Block reception of incoming packets
         * until everything is ready.
         */

-       s = splimp();
-       sysctl_register_fixed(); 
-       sysctl_mib_init();
+#if NETWORKING
+       bsd_init_kprintf("calling nwk_wq_init\n");
+       nwk_wq_init();
+       bsd_init_kprintf("calling dlil_init\n");

        dlil_init();
        dlil_init();

+       bsd_init_kprintf("calling proto_kpi_init\n");
+       proto_kpi_init();
+#endif /* NETWORKING */
+#if SOCKETS
+       bsd_init_kprintf("calling socketinit\n");

        socketinit();
        socketinit();

+       bsd_init_kprintf("calling domaininit\n");

        domaininit();
        domaininit();

-       splx(s);
+       iptap_init();
+#if FLOW_DIVERT
+       flow_divert_init();
+#endif /* FLOW_DIVERT */
+#endif /* SOCKETS */
+       kernproc->p_fd->fd_cdir = NULL;
+       kernproc->p_fd->fd_rdir = NULL;
+
+#if CONFIG_FREEZE
+#ifndef CONFIG_MEMORYSTATUS
+    #error "CONFIG_FREEZE defined without matching CONFIG_MEMORYSTATUS"
+#endif
+       /* Initialise background freezing */
+       bsd_init_kprintf("calling memorystatus_freeze_init\n");
+       memorystatus_freeze_init();
+#endif

 
 

-       p->p_fd->fd_cdir = NULL;
-       p->p_fd->fd_rdir = NULL;
+#if CONFIG_MEMORYSTATUS
+       /* Initialize kernel memory status notifications */
+       bsd_init_kprintf("calling memorystatus_init\n");
+       memorystatus_init();
+#endif /* CONFIG_MEMORYSTATUS */
+
+       bsd_init_kprintf("calling acct_init\n");
+       acct_init();

 
 #ifdef GPROF
        /* Initialize kernel profiling. */
        kmstartup();
 #endif
 
 
 #ifdef GPROF
        /* Initialize kernel profiling. */
        kmstartup();
 #endif
 

-       /* kick off timeout driven events by calling first time */
-       thread_wakeup(&lbolt);
-       timeout(lightning_bolt,0,hz);
+       bsd_init_kprintf("calling sysctl_mib_init\n");
+       sysctl_mib_init()

 
 

+       bsd_init_kprintf("calling bsd_autoconf\n");

        bsd_autoconf();
 
        bsd_autoconf();
 

+       bsd_init_kprintf("calling os_reason_init\n");
+       os_reason_init();
+
+#if CONFIG_DTRACE
+       dtrace_postinit();
+#endif
+

        /*
         * We attach the loopback interface *way* down here to ensure
         * it happens after autoconf(), otherwise it becomes the
        /*
         * We attach the loopback interface *way* down here to ensure
         * it happens after autoconf(), otherwise it becomes the


@@ -442,150 +884,216 @@ bsd_init()
         */
 #include <loop.h>
 #if NLOOP > 0
         */
 #include <loop.h>
 #if NLOOP > 0

+       bsd_init_kprintf("calling loopattach\n");

        loopattach();                   /* XXX */
 #endif
        loopattach();                   /* XXX */
 #endif

-        
-        /* Register the built-in dlil ethernet interface family */
+#if NGIF
+       /* Initialize gif interface (after lo0) */
+       gif_init();
+#endif
+
+#if PFLOG
+       /* Initialize packet filter log interface */
+       pfloginit();
+#endif /* PFLOG */
+
+#if NETHER > 0
+       /* Register the built-in dlil ethernet interface family */
+       bsd_init_kprintf("calling ether_family_init\n");

        ether_family_init();
        ether_family_init();

+#endif /* ETHER */
+
+#if NETWORKING
+       /* Call any kext code that wants to run just after network init */
+       bsd_init_kprintf("calling net_init_run\n");
+       net_init_run();
+       
+#if CONTENT_FILTER
+       cfil_init();
+#endif
+
+#if PACKET_MANGLER
+       pkt_mnglr_init();
+#endif 
+
+#if NECP
+       /* Initialize Network Extension Control Policies */
+       necp_init();
+#endif

 
 

+       netagent_init();
+
+       /* register user tunnel kernel control handler */
+       utun_register_control();
+#if IPSEC
+       ipsec_register_control();
+#endif /* IPSEC */
+       netsrc_init();
+       nstat_init();
+       tcp_cc_init();
+#if MPTCP
+       mptcp_control_register();
+#endif /* MPTCP */
+#endif /* NETWORKING */
+
+       bsd_init_kprintf("calling vnode_pager_bootstrap\n");

        vnode_pager_bootstrap();
 
        vnode_pager_bootstrap();
 

+       bsd_init_kprintf("calling inittodr\n");
+       inittodr(0);
+

        /* Mount the root file system. */
        while( TRUE) {
                int err;
 
        /* Mount the root file system. */
        while( TRUE) {
                int err;
 

+               bsd_init_kprintf("calling setconf\n");

                setconf();
                setconf();

-               /*
-                * read the time after clock_initialize_calendar()
-                * and before nfs mount
-                */
-               microtime(&time);
-
-               bsd_hardclockinit = -1; /* start ticking */
+#if NFSCLIENT
+               netboot = (mountroot == netboot_mountroot);
+#endif

 
 

+               bsd_init_kprintf("vfs_mountroot\n");

                if (0 == (err = vfs_mountroot()))
                        break;
                if (0 == (err = vfs_mountroot()))
                        break;

-               if (mountroot == netboot_mountroot) {
-                       printf("cannot mount network root, errno = %d\n", err);
-                       mountroot = NULL;
-                       if (0 == (err = vfs_mountroot()))
-                               break;
+               rootdevice[0] = '\0';
+#if NFSCLIENT
+               if (netboot) {
+                       PE_display_icon( 0, "noroot");  /* XXX a netboot-specific icon would be nicer */
+                       vc_progress_set(FALSE, 0);
+                       for (i=1; 1; i*=2) {
+                               printf("bsd_init: failed to mount network root, error %d, %s\n",
+                                       err, PE_boot_args());
+                               printf("We are hanging here...\n");
+                               IOSleep(i*60*1000);
+                       }
+                       /*NOTREACHED*/

                }
                }

+#endif

                printf("cannot mount root, errno = %d\n", err);
                boothowto |= RB_ASKNAME;
        }
 
                printf("cannot mount root, errno = %d\n", err);
                boothowto |= RB_ASKNAME;
        }
 

-       mountlist.cqh_first->mnt_flag |= MNT_ROOTFS;
+       IOSecureBSDRoot(rootdevice);
+
+       context.vc_thread = current_thread();
+       context.vc_ucred = kernproc->p_ucred;
+       mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;

 
 

+       bsd_init_kprintf("calling VFS_ROOT\n");

        /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */
        /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */

-       if (VFS_ROOT(mountlist.cqh_first, &rootvnode))
-               panic("bsd_init: cannot find root vnode");
-       VREF(rootvnode);
+       if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context))
+               panic("bsd_init: cannot find root vnode: %s", PE_boot_args());
+       rootvnode->v_flag |= VROOT;
+       (void)vnode_ref(rootvnode);
+       (void)vnode_put(rootvnode);

        filedesc0.fd_cdir = rootvnode;
        filedesc0.fd_cdir = rootvnode;

-       VOP_UNLOCK(rootvnode, 0, p);

 
 

-       if (mountroot == netboot_mountroot) {
+#if NFSCLIENT
+       if (netboot) {

                int err;
                int err;

+
+               netboot = TRUE;

                /* post mount setup */
                /* post mount setup */

-               if (err = netboot_setup(p)) {
-                       panic("bsd_init: NetBoot could not find root, %d", err);
+               if ((err = netboot_setup()) != 0) {
+                       PE_display_icon( 0, "noroot");  /* XXX a netboot-specific icon would be nicer */
+                       vc_progress_set(FALSE, 0);
+                       for (i=1; 1; i*=2) {
+                               printf("bsd_init: NetBoot could not find root, error %d: %s\n",
+                                       err, PE_boot_args());
+                               printf("We are hanging here...\n");
+                               IOSleep(i*60*1000);
+                       }
+                       /*NOTREACHED*/

                }
        }
                }
        }

+#endif

        
 
        
 

+#if CONFIG_IMAGEBOOT

        /*
        /*

-        * Now can look at time, having had a chance to verify the time
-        * from the file system.  Reset p->p_rtime as it may have been
-        * munched in mi_switch() after the time got set.
-        */
-       p->p_stats->p_start = boottime = time;
-       p->p_rtime.tv_sec = p->p_rtime.tv_usec = 0;
+        * See if a system disk image is present. If so, mount it and
+        * switch the root vnode to point to it
+        */ 
+       if (netboot == FALSE && imageboot_needed()) {
+               /* 
+                * An image was found.  No turning back: we're booted
+                * with a kernel from the disk image.
+                */
+               imageboot_setup(); 
+       }
+#endif /* CONFIG_IMAGEBOOT */
+  
+       /* set initial time; all other resource data is  already zero'ed */
+       microtime_with_abstime(&kernproc->p_start, &kernproc->p_stats->ps_start);

 
 #if DEVFS
        {
 
 #if DEVFS
        {

-           extern void devfs_kernel_mount(char * str);
-           
-           devfs_kernel_mount("/dev");
+           char mounthere[] = "/dev";  /* !const because of internal casting */
+
+           bsd_init_kprintf("calling devfs_kernel_mount\n");
+           devfs_kernel_mount(mounthere);

        }
        }

-#endif DEVFS
-       
-       /* Initialize signal state for process 0. */
-       siginit(p);
+#endif /* DEVFS */

 
 

-       /* printf("Launching user process\n"); */
+       /* Initialize signal state for process 0. */
+       bsd_init_kprintf("calling siginit\n");
+       siginit(kernproc);

 
 

+       bsd_init_kprintf("calling bsd_utaskbootstrap\n");

        bsd_utaskbootstrap();
 
        bsd_utaskbootstrap();
 

+       pal_kernel_announce();
+
+       bsd_init_kprintf("calling mountroot_post_hook\n");
+

        /* invoke post-root-mount hook */
        if (mountroot_post_hook != NULL)
                mountroot_post_hook();
        /* invoke post-root-mount hook */
        if (mountroot_post_hook != NULL)
                mountroot_post_hook();

+
+#if 0 /* not yet */
+       consider_zone_gc(FALSE);
+#endif
+
+       /* Initialize System Override call */
+       init_system_override();

        
        

-       (void) thread_funnel_set(kernel_flock, funnel_state);
+       bsd_init_kprintf("done\n");

 }
 
 }
 

-/* Called with kernel funnel held */

 void
 bsdinit_task(void)
 {
 void
 bsdinit_task(void)
 {

-       struct proc *p = current_proc();
-       struct uthread *ut;
-       kern_return_t   kr;
-       thread_act_t th_act;
-
-       proc_name("init", p);
+       proc_t p = current_proc();

 
 

-       ux_handler_init();
+       process_name("init", p);

 
 

-       th_act = current_act();
-       (void) host_set_exception_ports(host_priv_self(),
-                                       EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
-                                                        EXC_MASK_MACH_SYSCALL |
-                                                        EXC_MASK_RPC_ALERT),
-                                       ux_exception_port,
-                                       EXCEPTION_DEFAULT, 0);
-
-       (void) task_set_exception_ports(get_threadtask(th_act),
-                                       EXC_MASK_ALL & ~(EXC_MASK_SYSCALL |
-                                                        EXC_MASK_MACH_SYSCALL |
-                                                        EXC_MASK_RPC_ALERT),
-                                       ux_exception_port,
-                                       EXCEPTION_DEFAULT, 0);
+       /* Set up exception-to-signal reflection */
+       ux_handler_setup();

 
 

+#if CONFIG_MACF
+       mac_cred_label_associate_user(p->p_ucred);
+#endif

 
 

+    vm_init_before_launchd();

 
 

+#if CONFIG_XNUPOST
+       int result = bsd_list_tests();
+       result = bsd_do_post();
+       if (result != 0) {
+               panic("bsd_do_post: Tests failed with result = 0x%08x\n", result);
+       }
+#endif

 
 

-       ut = (uthread_t)get_bsdthread_info(th_act);
-       ut->uu_ar0 = (void *)get_user_regs(th_act);
+       bsd_init_kprintf("bsd_do_post - done");

 
 

-       bsd_hardclockinit = 1;  /* Start bsd hardclock */
-       bsd_init_task = get_threadtask(th_act);
-       init_task_failure_data[0] = 0;
-       shared_region_mapping_ref(system_shared_region);
-       vm_set_shared_region(get_threadtask(th_act), system_shared_region);

        load_init_program(p);
        load_init_program(p);

-       /* turn on app-profiling i.e. pre-heating */
-       app_profile = 1;
-}
-
-void
-lightning_bolt()
-{                      
-       boolean_t       funnel_state;
-       extern void klogwakeup(void);
-
-       funnel_state = thread_funnel_set(kernel_flock, TRUE);
-
-       thread_wakeup(&lbolt);
-       timeout(lightning_bolt,0,hz);
-       klogwakeup();
-
-       (void) thread_funnel_set(kernel_flock, FALSE);
+       lock_trace = 1;

 }
 
 }
 

-bsd_autoconf()
+kern_return_t
+bsd_autoconf(void)

 {
 {

-       extern kern_return_t IOKitBSDInit( void );
-
+       kprintf("bsd_autoconf: calling kminit\n");

        kminit();
 
        /* 
        kminit();
 
        /* 


@@ -602,172 +1110,217 @@ bsd_autoconf()
 }
 
 
 }
 
 

-#include <sys/disklabel.h>  // for MAXPARTITIONS
+#include <sys/disklabel.h>  /* for MAXPARTITIONS */

 
 

-setconf()
+static void
+setconf(void)

 {      
 {      

-       extern kern_return_t IOFindBSDRoot( char * rootName,
-                               dev_t * root, u_int32_t * flags );

        u_int32_t       flags;
        kern_return_t   err;
 
        u_int32_t       flags;
        kern_return_t   err;
 

-       /*
-        * calls into IOKit can generate networking registrations
-        * which needs to be under network funnel. Right thing to do
-        * here is to drop the funnel alltogether and regrab it afterwards
-        */
-       thread_funnel_set(kernel_flock, FALSE);
-       err = IOFindBSDRoot( rootdevice, &rootdev, &flags );
-       thread_funnel_set(kernel_flock, TRUE);
+       err = IOFindBSDRoot(rootdevice, sizeof(rootdevice), &rootdev, &flags);

        if( err) {
                printf("setconf: IOFindBSDRoot returned an error (%d);"
                        "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
                rootdev = makedev( 6, 0 );
        if( err) {
                printf("setconf: IOFindBSDRoot returned an error (%d);"
                        "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
                rootdev = makedev( 6, 0 );

-               strcpy( rootdevice, "sd0a" );
+               strlcpy(rootdevice, "sd0a", sizeof(rootdevice));

                flags = 0;
        }
 
                flags = 0;
        }
 

+#if NFSCLIENT

        if( flags & 1 ) {
                /* network device */
                mountroot = netboot_mountroot;
        } else {
        if( flags & 1 ) {
                /* network device */
                mountroot = netboot_mountroot;
        } else {

+#endif

                /* otherwise have vfs determine root filesystem */
                mountroot = NULL;
                /* otherwise have vfs determine root filesystem */
                mountroot = NULL;

+#if NFSCLIENT

        }
        }

+#endif

 
 }
 
 
 }
 

-bsd_utaskbootstrap()
+void
+bsd_utaskbootstrap(void)

 {
 {

-       thread_act_t th_act;
+       thread_t thread;

        struct uthread *ut;
 
        struct uthread *ut;
 

-       th_act = cloneproc(kernproc, 0);
-       initproc = pfind(1);                            
-       /* Set the launch time for init */
-       initproc->p_stats->p_start = time;
+       /*
+        * Clone the bootstrap process from the kernel process, without
+        * inheriting either task characteristics or memory from the kernel;
+        */
+       thread = cloneproc(TASK_NULL, COALITION_NULL, kernproc, FALSE, TRUE);
+
+       /* Hold the reference as it will be dropped during shutdown */
+       initproc = proc_find(1);                                
+#if __PROC_INTERNAL_DEBUG
+       if (initproc == PROC_NULL)
+               panic("bsd_utaskbootstrap: initproc not set\n");
+#endif
+       /*
+        * Since we aren't going back out the normal way to our parent,
+        * we have to drop the transition locks explicitly.
+        */
+       proc_signalend(initproc, 0);
+       proc_transend(initproc, 0);

 
 

-       ut = (struct uthread *)get_bsdthread_info(th_act);
+       ut = (struct uthread *)get_bsdthread_info(thread);

        ut->uu_sigmask = 0;
        ut->uu_sigmask = 0;

-       thread_hold(th_act);
-       (void)thread_stop(getshuttle_thread(th_act));
-       act_set_astbsd(th_act);
-       thread_release(th_act);
-       thread_unstop(getshuttle_thread(th_act));
-       (void) thread_resume(th_act);
+       act_set_astbsd(thread);
+       task_clear_return_wait(get_threadtask(thread));

 }
 
 }
 

-parse_bsd_args()
+static void
+parse_bsd_args(void)

 {
 {

-       extern char init_args[];
-       char    namep[16];
-       extern int boothowto;
-       extern int srv;
-       extern int ncl;
+       char namep[16];
+       int msgbuf;

 
 

-       int len;
-
-       if (PE_parse_boot_arg("-s", namep)) {
+       if ( PE_parse_boot_argn("-s", namep, sizeof (namep)))

                boothowto |= RB_SINGLE;
                boothowto |= RB_SINGLE;

-               len = strlen(init_args);
-               if(len != 0)
-                       strcat(init_args," -s");
-               else
-                       strcat(init_args,"-s");
-       }
-       if (PE_parse_boot_arg("-b", namep)) {
+
+       if (PE_parse_boot_argn("-b", namep, sizeof (namep)))

                boothowto |= RB_NOBOOTRC;
                boothowto |= RB_NOBOOTRC;

-               len = strlen(init_args);
-               if(len != 0)
-                       strcat(init_args," -b");
-               else
-                       strcat(init_args,"-b");
+
+       if (PE_parse_boot_argn("-x", namep, sizeof (namep))) /* safe boot */
+               boothowto |= RB_SAFEBOOT;
+
+       if (PE_parse_boot_argn("-minimalboot", namep, sizeof(namep))) {
+               /*
+                * -minimalboot indicates that we want userspace to be bootstrapped to a
+                * minimal environment.  What constitutes minimal is up to the bootstrap
+                * process.
+                */
+               minimalboot = 1;
+       }
+
+#if __arm64__
+       /* disable 64 bit grading */
+       if (PE_parse_boot_argn("-no64exec", namep, sizeof (namep)))
+               bootarg_no64exec = 1;
+#endif
+#if __x86_64__
+       /* disable 32 bit grading */
+       if (PE_parse_boot_argn("-no32exec", namep, sizeof (namep)))
+               bootarg_no32exec = 1;
+#endif
+
+       /* disable vnode_cache_is_authorized() by setting vnode_cache_defeat */
+       if (PE_parse_boot_argn("-vnode_cache_defeat", namep, sizeof (namep)))
+               bootarg_vnode_cache_defeat = 1;
+
+#if DEVELOPMENT || DEBUG
+       if (PE_parse_boot_argn("-disable_aslr", namep, sizeof (namep)))
+               bootarg_disable_aslr = 1;
+#endif
+
+       PE_parse_boot_argn("ncl", &ncl, sizeof (ncl));
+       if (PE_parse_boot_argn("nbuf", &max_nbuf_headers,
+                               sizeof (max_nbuf_headers))) {
+               customnbuf = 1;
+       }
+
+#if CONFIG_MACF
+#if defined (__i386__) || defined (__x86_64__)
+       PE_parse_boot_argn("policy_check", &policy_check_flags, sizeof (policy_check_flags));
+#endif
+#endif /* CONFIG_MACF */
+
+       if (PE_parse_boot_argn("msgbuf", &msgbuf, sizeof (msgbuf))) {
+               log_setsize(msgbuf);
+               oslog_setsize(msgbuf);
+       }
+
+       if (PE_parse_boot_argn("-novfscache", namep, sizeof(namep))) {
+               nc_disabled = 1;

        }
 
        }
 

-       if (PE_parse_boot_arg("-F", namep)) {
-               len = strlen(init_args);
-               if(len != 0)
-                       strcat(init_args," -F");
-               else
-                       strcat(init_args,"-F");
+#if CONFIG_JETSAM && (DEVELOPMENT || DEBUG)
+       if (PE_parse_boot_argn("-no_vnode_jetsam", namep, sizeof(namep)))
+                bootarg_no_vnode_jetsam = 1;
+#endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
+
+
+#if CONFIG_EMBEDDED
+       /*
+        * The darkboot flag is specified by the bootloader and is stored in
+        * boot_args->bootFlags. This flag is available starting revision 2.
+        */
+       boot_args *args = (boot_args *) PE_state.bootArgs;
+       if ((args != NULL) && (args->Revision >= kBootArgsRevision2)) {
+               darkboot = (args->bootFlags & kBootFlagsDarkBoot) ? 1 : 0;
+       } else {
+               darkboot = 0;

        }
        }

+#endif

 
 

-       if (PE_parse_boot_arg("-v", namep)) {
-               len = strlen(init_args);
-               if(len != 0)
-                       strcat(init_args," -v");
-               else
-                       strcat(init_args,"-v");
+#if PROC_REF_DEBUG
+       if (PE_parse_boot_argn("-disable_procref_tracking", namep, sizeof(namep))) {
+               proc_ref_tracking_disabled = 1;

        }
        }

+#endif

 
 

-       if (PE_parse_boot_arg("-x", namep)) { /* safe boot */
-               len = strlen(init_args);
-               if(len != 0)
-                       strcat(init_args," -x");
-               else
-                       strcat(init_args,"-x");
+#if OS_REASON_DEBUG
+       if (PE_parse_boot_argn("-disable_osreason_debug", namep, sizeof(namep))) {
+               os_reason_debug_disabled = 1;

        }
        }

+#endif
+
+       PE_parse_boot_argn("sigrestrict", &sigrestrict_arg, sizeof(sigrestrict_arg));

 
 

-       PE_parse_boot_arg("srv", &srv);
-       PE_parse_boot_arg("ncl", &ncl);
-       PE_parse_boot_arg("nbuf", &nbuf);
+#if DEVELOPMENT|| DEBUG
+       if (PE_parse_boot_argn("-no_sigsys", namep, sizeof(namep))) {
+               send_sigsys = false;
+       }
+#endif

 
 

-       return 0;
+#if (DEVELOPMENT|| DEBUG)
+       if (PE_parse_boot_argn("alt-dyld", dyld_alt_path, sizeof(dyld_alt_path))) {
+        if (strlen(dyld_alt_path) > 0) {
+            use_alt_dyld = 1;
+        }
+       }
+#endif

 }
 
 }
 

-boolean_t
-thread_funnel_switch(
-        int    oldfnl,
-       int     newfnl)
+void
+bsd_exec_setup(int scale)

 {
 {

-       thread_t        cur_thread;
-       boolean_t       funnel_state_prev;
-       int curfnl;
-       funnel_t * curflock;
-       funnel_t * oldflock;
-       funnel_t * newflock;
-       funnel_t * exist_funnel;
-       extern int disable_funnel;
-       
-        
-               if (disable_funnel)
-                       return(TRUE);
-
-        if(oldfnl == newfnl) {
-            panic("thread_funnel_switch: can't switch to same funnel");
-        }
-        
-        if ((oldfnl != NETWORK_FUNNEL) && (oldfnl != KERNEL_FUNNEL)) {
-            panic("thread_funnel_switch: invalid oldfunnel");
-        }
-        if ((newfnl != NETWORK_FUNNEL) && (newfnl != KERNEL_FUNNEL)) {
-            panic("thread_funnel_switch: invalid newfunnel");
-        }
-        
-       if((curflock = thread_funnel_get()) == THR_FUNNEL_NULL) {
-            panic("thread_funnel_switch: no funnel held");
+
+       switch (scale) {
+               case 0:
+               case 1:
+                       bsd_simul_execs = BSD_SIMUL_EXECS;
+                       break;
+               case 2:
+               case 3:
+                       bsd_simul_execs = 65;
+                       break;
+               case 4:
+               case 5:
+                       bsd_simul_execs = 129;
+                       break;
+               case 6:
+               case 7:
+                       bsd_simul_execs = 257;
+                       break;
+               default:
+                       bsd_simul_execs = 513;
+                       break;
+                       

        }
        }

-        
-       cur_thread = current_thread();
-        
-        if ((oldfnl == NETWORK_FUNNEL) && (curflock != network_flock))
-            panic("thread_funnel_switch: network funnel not held");
-            
-        if ((oldfnl == KERNEL_FUNNEL) && (curflock != kernel_flock))
-            panic("thread_funnel_switch: kernel funnel not held");
-
-        if(oldfnl == NETWORK_FUNNEL) {
-            oldflock = network_flock;
-            newflock = kernel_flock;
-        } else {
-            oldflock = kernel_flock;
-            newflock = network_flock;
-        }
-               KERNEL_DEBUG(0x603242c | DBG_FUNC_NONE, oldflock, 1, 0, 0, 0);
-        thread_funnel_set(oldflock, FALSE);
-               KERNEL_DEBUG(0x6032428 | DBG_FUNC_NONE, newflock, 1, 0, 0, 0);
-        thread_funnel_set(newflock, TRUE);
-               KERNEL_DEBUG(0x6032434 | DBG_FUNC_NONE, newflock, 1, 0, 0, 0);
+       bsd_pageable_map_size = (bsd_simul_execs * BSD_PAGEABLE_SIZE_PER_EXEC);
+}
+
+#if !NFSCLIENT
+int 
+netboot_root(void);

 
 

-        return(TRUE);        
+int 
+netboot_root(void)
+{
+       return(0);

 }
 }

+#endif