xnu-6153.121.1.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 25395d3521da0ba40d17502f814a512be3433e4e..887cb454b7bfe5b23b1e83d1b942956f30257196 100644 (file)
--- a/bsd/kern/bsd_init.c
+++ b/bsd/kern/bsd_init.c
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2000-2015 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @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


@@ -11,10 +11,10 @@
  * 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.
  * 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.
  * 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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,9 +22,9 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_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.
  *
  * Copyright (c) 1982, 1986, 1989, 1991, 1992, 1993
  *     The Regents of the University of California.  All rights reserved.


@@ -65,7 +65,7 @@
  *     @(#)init_main.c 8.16 (Berkeley) 5/14/95
  */
 
  *     @(#)init_main.c 8.16 (Berkeley) 5/14/95
  */
 

-/* 
+/*

  *
  * Mach Operating System
  * Copyright (c) 1987 Carnegie-Mellon University
  *
  * Mach Operating System
  * Copyright (c) 1987 Carnegie-Mellon University


@@ -94,6 +94,7 @@
 #include <sys/time.h>
 #include <sys/systm.h>
 #include <sys/mman.h>
 #include <sys/time.h>
 #include <sys/systm.h>
 #include <sys/mman.h>

+#include <sys/kasl.h>

 
 #include <security/audit/audit.h>
 
 
 #include <security/audit/audit.h>
 


@@ -106,18 +107,15 @@
 #include <kern/task.h>
 #include <kern/ast.h>
 #include <kern/kalloc.h>
 #include <kern/task.h>
 #include <kern/ast.h>
 #include <kern/kalloc.h>

-#include <mach/mach_host.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>  /* for ux_exception_port */
-

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

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

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


@@ -128,62 +126,61 @@
 #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 <mach/task.h>                 /* for task_set_exception_ports() */
-#include <sys/ux_exception.h>          /* for ux_handler() */
-#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 <mach/host_priv.h>            /* for host_set_exception_ports() */
-#include <kern/host.h>                 /* for host_priv_self() */
-#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 <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/kern_memorystatus_freeze.h> /* for memorystatus_freeze_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 <net/restricted_in_port.h> /* for restricted_in_port_init() */
+#include <kern/assert.h>                /* for assert() */
+#include <sys/kern_overrides.h>         /* for init_system_override() */
+#include <sys/lockf.h>                  /* for lf_init() */

 
 #include <net/init.h>
 
 #if CONFIG_MACF
 #include <security/mac_framework.h>
 
 #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() */
+#include <security/mac_internal.h>      /* mac_init_bsd() */
+#include <security/mac_mach_internal.h> /* mac_update_task_label() */

 #endif
 
 #include <machine/exec.h>
 
 #endif
 
 #include <machine/exec.h>
 

-#if NFSCLIENT
+#if CONFIG_NETBOOT

 #include <sys/netboot.h>
 #endif
 
 #include <sys/netboot.h>
 #endif
 


@@ -200,25 +197,28 @@
 #include <machine/pal_routines.h>
 #include <console/video_console.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 */
+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[] =
 
 const char    copyright[] =

-"Copyright (c) 1982, 1986, 1989, 1991, 1993\n\t"
-"The Regents of the University of California. "
-"All rights reserved.\n\n";
+    "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. */
 
 /* Components of the first process -- never freed. */

-struct proc proc0;
-struct session session0;
-struct pgrp pgrp0;
-struct filedesc filedesc0;
-struct plimit limit0;
-struct pstats pstats0;
-struct sigacts sigacts0;
+struct  proc proc0;
+struct  session session0;
+struct  pgrp pgrp0;
+struct  filedesc filedesc0;
+struct  plimit limit0;
+struct  pstats pstats0;
+struct  sigacts sigacts0;

 proc_t kernproc;
 proc_t initproc;
 
 proc_t kernproc;
 proc_t initproc;
 


@@ -234,28 +234,33 @@ int nswapmap;
 void *swapmap;
 struct swdevt swdevt[1];
 
 void *swapmap;
 struct swdevt swdevt[1];
 

-dev_t  rootdev;                /* device of the root */
-dev_t  dumpdev;                /* device to take dumps on */
-long   dumplo;                 /* offset into dumpdev */
-long   hostid;
-char   hostname[MAXHOSTNAMELEN];
-int            hostnamelen;
-char   domainname[MAXDOMNAMELEN];
-int            domainnamelen;
+dev_t   rootdev;                /* device of the root */
+dev_t   dumpdev;                /* device to take dumps on */
+long    dumplo;                 /* offset into dumpdev */
+long    hostid;
+char    hostname[MAXHOSTNAMELEN];
+lck_mtx_t hostname_lock;
+lck_grp_t *hostname_lck_grp;
+char    domainname[MAXDOMNAMELEN];
+lck_mtx_t domainname_lock;

 
 char rootdevice[DEVMAXNAMESIZE];
 
 #if  KMEMSTATS
 
 char rootdevice[DEVMAXNAMESIZE];
 
 #if  KMEMSTATS

-struct kmemstats kmemstats[M_LAST];
+struct  kmemstats kmemstats[M_LAST];

 #endif
 
 #endif
 

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

 int minimalboot = 0;
 #if CONFIG_EMBEDDED
 int darkboot = 0;
 #endif
 
 int minimalboot = 0;
 #if CONFIG_EMBEDDED
 int darkboot = 0;
 #endif
 

+#if __arm64__
+int legacy_footprint_entitlement_mode = LEGACY_FOOTPRINT_ENTITLEMENT_IGNORE;
+#endif /* __arm64__ */
+

 #if PROC_REF_DEBUG
 __private_extern__ int proc_ref_tracking_disabled = 0; /* disable panics on leaked proc refs across syscall boundary */
 #endif
 #if PROC_REF_DEBUG
 __private_extern__ int proc_ref_tracking_disabled = 0; /* disable panics on leaked proc refs across syscall boundary */
 #endif


@@ -275,11 +280,22 @@ extern void oslog_setsize(int size);
 extern void throttle_init(void);
 extern void acct_init(void);
 
 extern void throttle_init(void);
 extern void acct_init(void);
 

+#if CONFIG_LOCKERBOOT
+#define LOCKER_PROTOBOOT_MOUNT "/protoboot"
+
+const char kernel_protoboot_mount[] = LOCKER_PROTOBOOT_MOUNT;
+extern int mount_locker_protoboot(const char *fsname, const char *mntpoint,
+    const char *pbdevpath);
+#endif
+

 extern int serverperfmode;
 extern int ncl;
 extern int serverperfmode;
 extern int ncl;

+#if DEVELOPMENT || DEBUG
+extern int syscallfilter_disable;
+#endif // DEVELOPMENT || DEBUG

 
 

-vm_map_t       bsd_pageable_map;
-vm_map_t       mb_map;
+vm_map_t        bsd_pageable_map;
+vm_map_t        mb_map;

 
 static  int bsd_simul_execs;
 static int bsd_pageable_map_size;
 
 static  int bsd_simul_execs;
 static int bsd_pageable_map_size;


@@ -289,8 +305,10 @@ __private_extern__ vm_offset_t * execargs_cache = NULL;
 
 void bsd_exec_setup(int);
 
 
 void bsd_exec_setup(int);
 

-#if __arm64__
-__private_extern__ int bootarg_no64exec = 0;
+__private_extern__ int bootarg_execfailurereports = 0;
+
+#if __x86_64__
+__private_extern__ int bootarg_no32exec = 1;

 #endif
 __private_extern__ int bootarg_vnode_cache_defeat = 0;
 
 #endif
 __private_extern__ int bootarg_vnode_cache_defeat = 0;
 


@@ -298,6 +316,8 @@ __private_extern__ int bootarg_vnode_cache_defeat = 0;
 __private_extern__ int bootarg_no_vnode_jetsam = 0;
 #endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
 
 __private_extern__ int bootarg_no_vnode_jetsam = 0;
 #endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
 

+__private_extern__ int bootarg_no_vnode_drain = 0;
+

 /*
  * Prevent kernel-based ASLR from being used, for testing.
  */
 /*
  * Prevent kernel-based ASLR from being used, for testing.
  */


@@ -312,9 +332,10 @@ __private_extern__ int bootarg_disable_aslr = 0;
 #if DEVELOPMENT || DEBUG
 char dyld_alt_path[MAXPATHLEN];
 int use_alt_dyld = 0;
 #if DEVELOPMENT || DEBUG
 char dyld_alt_path[MAXPATHLEN];
 int use_alt_dyld = 0;

+extern uint64_t dyld_flags;

 #endif
 
 #endif
 

-int    cmask = CMASK;
+int     cmask = CMASK;

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


@@ -349,11 +370,11 @@ int policy_check_flags = 0;
 
 extern int check_policy_init(int);
 #endif
 
 extern int check_policy_init(int);
 #endif

-#endif /* CONFIG_MACF */
+#endif  /* CONFIG_MACF */

 
 /* If we are using CONFIG_DTRACE */
 #if CONFIG_DTRACE
 
 /* If we are using CONFIG_DTRACE */
 #if CONFIG_DTRACE

-       extern void dtrace_postinit(void);
+extern void dtrace_postinit(void);

 #endif
 
 /*
 #endif
 
 /*


@@ -374,18 +395,18 @@ extern int check_policy_init(int);
 static void
 process_name(const char *s, proc_t p)
 {
 static void
 process_name(const char *s, proc_t p)
 {

-       strlcpy(p->p_comm, s, sizeof(p->p_comm));
-       strlcpy(p->p_name, s, sizeof(p->p_name));
+       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 - PAGE_MAX_SIZE };
-struct rlimit vm_initial_limit_data = { DFLDSIZ, MAXDSIZ };
-struct rlimit vm_initial_limit_core = { DFLCSIZ, MAXCSIZ };
+struct rlimit vm_initial_limit_stack = { .rlim_cur = DFLSSIZ, .rlim_max = MAXSSIZ - PAGE_MAX_SIZE };
+struct rlimit vm_initial_limit_data = { .rlim_cur = DFLDSIZ, .rlim_max = MAXDSIZ };
+struct rlimit vm_initial_limit_core = { .rlim_cur = DFLCSIZ, .rlim_max = MAXCSIZ };

 
 

-extern thread_t        cloneproc(task_t, coalition_t, proc_t, int, int);
-extern int     (*mountroot)(void);
+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_lck_grp;
 lck_grp_t * proc_slock_grp;


@@ -394,11 +415,16 @@ 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_t * proc_knhashlock_grp;
 lck_grp_t * proc_ucred_mlock_grp;
 lck_grp_t * proc_mlock_grp;

+lck_grp_t * proc_dirslock_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;
 
 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;
 
 
 extern lck_mtx_t * execargs_cache_lock;
 


@@ -438,22 +464,36 @@ bsd_init(void)
        struct uthread *ut;
        unsigned int i;
        struct vfs_context context;
        struct uthread *ut;
        unsigned int i;
        struct vfs_context context;

-       kern_return_t   ret;
+       kern_return_t   ret;

        struct ucred temp_cred;
        struct posix_cred temp_pcred;
        struct ucred temp_cred;
        struct posix_cred temp_pcred;

-#if NFSCLIENT || CONFIG_IMAGEBOOT
+#if CONFIG_NETBOOT || CONFIG_IMAGEBOOT

        boolean_t       netboot = FALSE;
 #endif
        boolean_t       netboot = FALSE;
 #endif

+#if CONFIG_LOCKERBOOT
+       vnode_t pbvn = NULLVP;
+       mount_t pbmnt = NULL;
+       char *pbdevp = NULL;
+       char pbdevpath[64];
+       char pbfsname[MFSNAMELEN];
+       char *slash_dev = NULL;
+#endif
+
+#define DEBUG_BSDINIT 0

 
 

-#define bsd_init_kprintf(x...) /* kprintf("bsd_init: " x) */
+#if DEBUG_BSDINIT
+#define bsd_init_kprintf(x, ...) kprintf("bsd_init: " x, ## __VA_ARGS__)
+#else
+#define bsd_init_kprintf(x, ...)
+#endif

 
        throttle_init();
 
        printf(copyright);
 
        throttle_init();
 
        printf(copyright);

-       
+

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

-       
+

        bsd_init_kprintf("calling parse_bsd_args\n");
        parse_bsd_args();
 
        bsd_init_kprintf("calling parse_bsd_args\n");
        parse_bsd_args();
 


@@ -473,10 +513,10 @@ bsd_init(void)
        /* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/
        tty_init();
 
        /* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/
        tty_init();
 

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

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

-       set_bsdtask_info(kernel_task,(void *)kernproc);
+       set_bsdtask_info(kernel_task, (void *)kernproc);

 
        /* give kernproc a name */
        bsd_init_kprintf("calling process_name\n");
 
        /* give kernproc a name */
        bsd_init_kprintf("calling process_name\n");


@@ -484,41 +524,33 @@ bsd_init(void)
 
        /* allocate proc lock group attribute and group */
        bsd_init_kprintf("calling lck_grp_attr_alloc_init\n");
 
        /* 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);
+       proc_lck_grp_attr = lck_grp_attr_alloc_init();
+
+       proc_lck_grp = lck_grp_alloc_init("proc", proc_lck_grp_attr);
+
+       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);
+       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);
+       proc_dirslock_grp = lck_grp_alloc_init("proc-dirslock", 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();
        /* 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);
        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
+       lck_rw_init(&kernproc->p_dirs_lock, proc_dirslock_grp, proc_lck_attr);

 
        assert(bsd_simul_execs != 0);
        execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
 
        assert(bsd_simul_execs != 0);
        execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);


@@ -526,11 +558,12 @@ bsd_init(void)
        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));
        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)
+
+       if (current_task() != kernel_task) {

                printf("bsd_init: We have a problem, "
                printf("bsd_init: We have a problem, "

-                               "current task is not kernel task\n");
-       
+                   "current task is not kernel task\n");
+       }
+

        bsd_init_kprintf("calling get_bsdthread_info\n");
        ut = (uthread_t)get_bsdthread_info(current_thread());
 
        bsd_init_kprintf("calling get_bsdthread_info\n");
        ut = (uthread_t)get_bsdthread_info(current_thread());
 


@@ -549,11 +582,12 @@ bsd_init(void)
 #endif
 #endif /* MAC */
 
 #endif
 #endif /* MAC */
 

-       /* Initialize System Override call */
-       init_system_override();
-       

        ulock_initialize();
 
        ulock_initialize();
 

+       hostname_lck_grp = lck_grp_alloc_init("hostname", LCK_GRP_ATTR_NULL);
+       lck_mtx_init(&hostname_lock, hostname_lck_grp, LCK_ATTR_NULL);
+       lck_mtx_init(&domainname_lock, hostname_lck_grp, LCK_ATTR_NULL);
+

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


@@ -562,11 +596,7 @@ bsd_init(void)
        kernproc->p_pgrp = &pgrp0;
        LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
        LIST_INIT(&pgrp0.pg_members);
        kernproc->p_pgrp = &pgrp0;
        LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
        LIST_INIT(&pgrp0.pg_members);

-#ifdef CONFIG_FINE_LOCK_GROUPS

        lck_mtx_init(&pgrp0.pg_mlock, proc_mlock_grp, proc_lck_attr);
        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;
        /* 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;


@@ -579,11 +609,7 @@ bsd_init(void)
        session0.s_count = 1;
        session0.s_leader = kernproc;
        session0.s_listflags = 0;
        session0.s_count = 1;
        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);
        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();
 
        LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash);
        proc_list_unlock();
 


@@ -592,7 +618,7 @@ bsd_init(void)
 #endif
 
        kernproc->task = kernel_task;
 #endif
 
        kernproc->task = kernel_task;

-       
+

        kernproc->p_stat = SRUN;
        kernproc->p_flag = P_SYSTEM;
        kernproc->p_lflag = 0;
        kernproc->p_stat = SRUN;
        kernproc->p_flag = P_SYSTEM;
        kernproc->p_lflag = 0;


@@ -603,8 +629,9 @@ bsd_init(void)
 #endif
 
 #if DEVELOPMENT || DEBUG
 #endif
 
 #if DEVELOPMENT || DEBUG

-       if (bootarg_disable_aslr)
+       if (bootarg_disable_aslr) {

                kernproc->p_flag |= P_DISABLE_ASLR;
                kernproc->p_flag |= P_DISABLE_ASLR;

+       }

 #endif
 
        kernproc->p_nice = NZERO;
 #endif
 
        kernproc->p_nice = NZERO;


@@ -612,7 +639,7 @@ bsd_init(void)
 
        TAILQ_INIT(&kernproc->p_uthlist);
        TAILQ_INSERT_TAIL(&kernproc->p_uthlist, ut, uu_list);
 
        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->sigwait = FALSE;
        kernproc->sigwait_thread = THREAD_NULL;
        kernproc->exit_thread = THREAD_NULL;


@@ -628,14 +655,14 @@ bsd_init(void)
        /* 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;
        /* 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;

-       
+

        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);
        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); 
+       kernproc->p_ucred = kauth_cred_create(&temp_cred);

 
        /* update cred on proc */
        PROC_UPDATE_CREDS_ONPROC(kernproc);
 
        /* update cred on proc */
        PROC_UPDATE_CREDS_ONPROC(kernproc);


@@ -661,7 +688,7 @@ bsd_init(void)
        /* Create the file descriptor table. */
        kernproc->p_fd = &filedesc0;
        filedesc0.fd_cmask = cmask;
        /* Create the file descriptor table. */
        kernproc->p_fd = &filedesc0;
        filedesc0.fd_cmask = cmask;

-       filedesc0.fd_knlistsize = -1;
+       filedesc0.fd_knlistsize = 0;

        filedesc0.fd_knlist = NULL;
        filedesc0.fd_knhash = NULL;
        filedesc0.fd_knhashmask = 0;
        filedesc0.fd_knlist = NULL;
        filedesc0.fd_knhash = NULL;
        filedesc0.fd_knhashmask = 0;


@@ -670,9 +697,10 @@ bsd_init(void)
 
        /* Create the limits structures. */
        kernproc->p_limit = &limit0;
 
        /* Create the limits structures. */
        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;
+       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[RLIMIT_NPROC].rlim_cur = maxprocperuid;
        limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;
        limit0.pl_rlimit[RLIMIT_NOFILE].rlim_cur = NOFILE;
        limit0.pl_rlimit[RLIMIT_NPROC].rlim_cur = maxprocperuid;
        limit0.pl_rlimit[RLIMIT_NPROC].rlim_max = maxproc;


@@ -695,22 +723,26 @@ bsd_init(void)
         *      for temporary copying (execve()).
         */
        {
         *      for temporary copying (execve()).
         */
        {

-               vm_offset_t     minimum;
+               vm_offset_t     minimum;

 
                bsd_init_kprintf("calling kmem_suballoc\n");
                assert(bsd_pageable_map_size != 0);
                ret = kmem_suballoc(kernel_map,
 
                bsd_init_kprintf("calling kmem_suballoc\n");
                assert(bsd_pageable_map_size != 0);
                ret = kmem_suballoc(kernel_map,

-                               &minimum,
-                               (vm_size_t)bsd_pageable_map_size,
-                               TRUE,
-                               VM_FLAGS_ANYWHERE,
-                               VM_MAP_KERNEL_FLAGS_NONE,
-                               VM_KERN_MEMORY_BSD,
-                               &bsd_pageable_map);
-               if (ret != KERN_SUCCESS) 
+                   &minimum,
+                   (vm_size_t)bsd_pageable_map_size,
+                   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");
                        panic("bsd_init: Failed to allocate bsd pageable map");

+               }

        }
 
        }
 

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

        /*
         * Initialize buffers and hash links for buffers
         *
        /*
         * Initialize buffers and hash links for buffers
         *


@@ -734,6 +766,10 @@ bsd_init(void)
        bsd_init_kprintf("calling vfsinit\n");
        vfsinit();
 
        bsd_init_kprintf("calling vfsinit\n");
        vfsinit();
 

+       /* Initialize file locks. */
+       bsd_init_kprintf("calling lf_init\n");
+       lf_init();
+

 #if CONFIG_PROC_UUID_POLICY
        /* Initial proc_uuid_policy subsystem */
        bsd_init_kprintf("calling proc_uuid_policy_init()\n");
 #if CONFIG_PROC_UUID_POLICY
        /* Initial proc_uuid_policy subsystem */
        bsd_init_kprintf("calling proc_uuid_policy_init()\n");


@@ -748,6 +784,7 @@ bsd_init(void)
        bsd_init_kprintf("calling mbinit\n");
        mbinit();
        net_str_id_init(); /* for mbuf tags */
        bsd_init_kprintf("calling mbinit\n");
        mbinit();
        net_str_id_init(); /* for mbuf tags */

+       restricted_in_port_init();

 #endif /* SOCKETS */
 
        /*
 #endif /* SOCKETS */
 
        /*


@@ -756,7 +793,7 @@ bsd_init(void)
         */
 #if CONFIG_AUDIT
        bsd_init_kprintf("calling audit_init\n");
         */
 #if CONFIG_AUDIT
        bsd_init_kprintf("calling audit_init\n");

-       audit_init();  
+       audit_init();

 #endif
 
        /* Initialize kqueues */
 #endif
 
        /* Initialize kqueues */


@@ -826,7 +863,7 @@ bsd_init(void)
        iptap_init();
 #if FLOW_DIVERT
        flow_divert_init();
        iptap_init();
 #if FLOW_DIVERT
        flow_divert_init();

-#endif /* FLOW_DIVERT */
+#endif  /* FLOW_DIVERT */

 #endif /* SOCKETS */
        kernproc->p_fd->fd_cdir = NULL;
        kernproc->p_fd->fd_rdir = NULL;
 #endif /* SOCKETS */
        kernproc->p_fd->fd_cdir = NULL;
        kernproc->p_fd->fd_rdir = NULL;


@@ -849,13 +886,8 @@ bsd_init(void)
        bsd_init_kprintf("calling acct_init\n");
        acct_init();
 
        bsd_init_kprintf("calling acct_init\n");
        acct_init();
 

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

        bsd_init_kprintf("calling sysctl_mib_init\n");
        bsd_init_kprintf("calling sysctl_mib_init\n");

-       sysctl_mib_init()
+       sysctl_mib_init();

 
        bsd_init_kprintf("calling bsd_autoconf\n");
        bsd_autoconf();
 
        bsd_init_kprintf("calling bsd_autoconf\n");
        bsd_autoconf();


@@ -875,7 +907,7 @@ bsd_init(void)
 #include <loop.h>
 #if NLOOP > 0
        bsd_init_kprintf("calling loopattach\n");
 #include <loop.h>
 #if NLOOP > 0
        bsd_init_kprintf("calling loopattach\n");

-       loopattach();                   /* XXX */
+       loopattach();                   /* XXX */

 #endif
 #if NGIF
        /* Initialize gif interface (after lo0) */
 #endif
 #if NGIF
        /* Initialize gif interface (after lo0) */


@@ -897,14 +929,14 @@ bsd_init(void)
        /* Call any kext code that wants to run just after network init */
        bsd_init_kprintf("calling net_init_run\n");
        net_init_run();
        /* 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();
 #if CONTENT_FILTER
        cfil_init();
 #endif
 
 #if PACKET_MANGLER
        pkt_mnglr_init();

-#endif 
+#endif

 
 #if NECP
        /* Initialize Network Extension Control Policies */
 
 #if NECP
        /* Initialize Network Extension Control Policies */


@@ -933,28 +965,29 @@ bsd_init(void)
        inittodr(0);
 
        /* Mount the root file system. */
        inittodr(0);
 
        /* Mount the root file system. */

-       while( TRUE) {
+       while (TRUE) {

                int err;
 
                bsd_init_kprintf("calling setconf\n");
                setconf();
                int err;
 
                bsd_init_kprintf("calling setconf\n");
                setconf();

-#if NFSCLIENT
+#if CONFIG_NETBOOT

                netboot = (mountroot == netboot_mountroot);
 #endif
 
                bsd_init_kprintf("vfs_mountroot\n");
                netboot = (mountroot == netboot_mountroot);
 #endif
 
                bsd_init_kprintf("vfs_mountroot\n");

-               if (0 == (err = vfs_mountroot()))
+               if (0 == (err = vfs_mountroot())) {

                        break;
                        break;

+               }

                rootdevice[0] = '\0';
                rootdevice[0] = '\0';

-#if NFSCLIENT
+#if CONFIG_NETBOOT

                if (netboot) {
                        PE_display_icon( 0, "noroot");  /* XXX a netboot-specific icon would be nicer */
                        vc_progress_set(FALSE, 0);
                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) {
+                       for (i = 1; 1; i *= 2) {

                                printf("bsd_init: failed to mount network root, error %d, %s\n",
                                printf("bsd_init: failed to mount network root, error %d, %s\n",

-                                       err, PE_boot_args());
+                                   err, PE_boot_args());

                                printf("We are hanging here...\n");
                                printf("We are hanging here...\n");

-                               IOSleep(i*60*1000);
+                               IOSleep(i * 60 * 1000);

                        }
                        /*NOTREACHED*/
                }
                        }
                        /*NOTREACHED*/
                }


@@ -971,14 +1004,15 @@ bsd_init(void)
 
        bsd_init_kprintf("calling VFS_ROOT\n");
        /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */
 
        bsd_init_kprintf("calling VFS_ROOT\n");
        /* Get the vnode for '/'.  Set fdp->fd_fd.fd_cdir to reference it. */

-       if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context))
+       if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context)) {

                panic("bsd_init: cannot find root vnode: %s", PE_boot_args());
                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;
 
        rootvnode->v_flag |= VROOT;
        (void)vnode_ref(rootvnode);
        (void)vnode_put(rootvnode);
        filedesc0.fd_cdir = rootvnode;
 

-#if NFSCLIENT
+#if CONFIG_NETBOOT

        if (netboot) {
                int err;
 
        if (netboot) {
                int err;
 


@@ -987,44 +1021,111 @@ bsd_init(void)
                if ((err = netboot_setup()) != 0) {
                        PE_display_icon( 0, "noroot");  /* XXX a netboot-specific icon would be nicer */
                        vc_progress_set(FALSE, 0);
                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) {
+                       for (i = 1; 1; i *= 2) {

                                printf("bsd_init: NetBoot could not find root, error %d: %s\n",
                                printf("bsd_init: NetBoot could not find root, error %d: %s\n",

-                                       err, PE_boot_args());
+                                   err, PE_boot_args());

                                printf("We are hanging here...\n");
                                printf("We are hanging here...\n");

-                               IOSleep(i*60*1000);
+                               IOSleep(i * 60 * 1000);

                        }
                        /*NOTREACHED*/
                }
        }
 #endif
                        }
                        /*NOTREACHED*/
                }
        }
 #endif

-       
+

 
 #if CONFIG_IMAGEBOOT
 
 #if CONFIG_IMAGEBOOT

+#if CONFIG_LOCKERBOOT
+       /*
+        * Stash the protoboot vnode, mount, filesystem name, and device name for
+        * later use. Note that the mount-from name may not have the "/dev/"
+        * component, so we must sniff out this condition and add it as needed.
+        */
+       pbvn = rootvnode;
+       pbmnt = pbvn->v_mount;
+       pbdevp = vfs_statfs(pbmnt)->f_mntfromname;
+       slash_dev = strnstr(pbdevp, "/dev/", strlen(pbdevp));
+       if (slash_dev) {
+               /*
+                * If the old root is a snapshot mount, it will have the form:
+                *
+                *     com.apple.os.update-<boot manifest hash>@<dev node path>
+                *
+                * So we just search the mntfromname for any occurrence of "/dev/" and
+                * grab that as the device path. The image boot code needs a dev node to
+                * do the re-mount, so we cannot directly mount the snapshot as the
+                * protoboot volume currently.
+                */
+               strlcpy(pbdevpath, slash_dev, sizeof(pbdevpath));
+       } else {
+               snprintf(pbdevpath, sizeof(pbdevpath), "/dev/%s", pbdevp);
+       }
+
+       bsd_init_kprintf("protoboot mount-from: %s\n", pbdevp);
+       bsd_init_kprintf("protoboot dev path: %s\n", pbdevpath);
+
+       strlcpy(pbfsname, pbmnt->mnt_vtable->vfc_name, sizeof(pbfsname));
+#endif

        /*
         * See if a system disk image is present. If so, mount it and
         * switch the root vnode to point to it
        /*
         * 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()) {
-               /* 
+        */
+       imageboot_type_t imageboot_type = imageboot_needed();
+       if (netboot == FALSE && imageboot_type) {
+               /*

                 * An image was found.  No turning back: we're booted
                 * with a kernel from the disk image.
                 */
                 * An image was found.  No turning back: we're booted
                 * with a kernel from the disk image.
                 */

-               imageboot_setup(); 
+               bsd_init_kprintf("doing image boot: type = %d\n", imageboot_type);
+               imageboot_setup(imageboot_type);
+       }
+
+#if CONFIG_LOCKERBOOT
+       if (imageboot_type == IMAGEBOOT_LOCKER) {
+               bsd_init_kprintf("booting from locker\n");
+               if (vnode_tag(rootvnode) != VT_LOCKERFS) {
+                       panic("root filesystem not a locker: fsname = %s",
+                           rootvnode->v_mount->mnt_vtable->vfc_name);
+               }

        }
        }

+#endif /* CONFIG_LOCKERBOOT */

 #endif /* CONFIG_IMAGEBOOT */
 #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
        {
        /* set initial time; all other resource data is  already zero'ed */
        microtime_with_abstime(&kernproc->p_start, &kernproc->p_stats->ps_start);
 
 #if DEVFS
        {

-           char mounthere[] = "/dev";  /* !const because of internal casting */
+               char mounthere[] = "/dev"; /* !const because of internal casting */

 
 

-           bsd_init_kprintf("calling devfs_kernel_mount\n");
-           devfs_kernel_mount(mounthere);
+               bsd_init_kprintf("calling devfs_kernel_mount\n");
+               devfs_kernel_mount(mounthere);

        }
 #endif /* DEVFS */
 
        }
 #endif /* DEVFS */
 

+       if (vfs_mount_rosv_data()) {
+               panic("failed to mount data volume!");
+       }
+
+       if (vfs_mount_vm()) {
+               printf("failed to mount vm volume!");
+       }
+
+#if CONFIG_LOCKERBOOT
+       /*
+        * We need to wait until devfs is up before remounting the protoboot volume
+        * within the locker so that it can have a real devfs vnode backing it.
+        */
+       if (imageboot_type == IMAGEBOOT_LOCKER) {
+               bsd_init_kprintf("re-mounting protoboot volume\n");
+               int error = mount_locker_protoboot(pbfsname, LOCKER_PROTOBOOT_MOUNT,
+                   pbdevpath);
+               if (error) {
+                       panic("failed to mount protoboot volume: dev path = %s, error = %d",
+                           pbdevpath, error);
+               }
+       }
+#endif /* CONFIG_LOCKERBOOT */
+

        /* Initialize signal state for process 0. */
        bsd_init_kprintf("calling siginit\n");
        siginit(kernproc);
        /* Initialize signal state for process 0. */
        bsd_init_kprintf("calling siginit\n");
        siginit(kernproc);


@@ -1037,13 +1138,17 @@ bsd_init(void)
        bsd_init_kprintf("calling mountroot_post_hook\n");
 
        /* invoke post-root-mount hook */
        bsd_init_kprintf("calling mountroot_post_hook\n");
 
        /* invoke post-root-mount hook */

-       if (mountroot_post_hook != NULL)
+       if (mountroot_post_hook != NULL) {

                mountroot_post_hook();
                mountroot_post_hook();

+       }

 
 #if 0 /* not yet */
        consider_zone_gc(FALSE);
 #endif
 
 
 #if 0 /* not yet */
        consider_zone_gc(FALSE);
 #endif
 

+       /* Initialize System Override call */
+       init_system_override();
+

        bsd_init_kprintf("done\n");
 }
 
        bsd_init_kprintf("done\n");
 }
 


@@ -1051,28 +1156,25 @@ void
 bsdinit_task(void)
 {
        proc_t p = current_proc();
 bsdinit_task(void)
 {
        proc_t p = current_proc();

-       struct uthread *ut;
-       thread_t thread;

 
        process_name("init", p);
 
 
        process_name("init", p);
 

-       ux_handler_init();
-
-       thread = current_thread();
-       (void) host_set_exception_ports(host_priv_self(),
-                                       EXC_MASK_ALL & ~(EXC_MASK_RPC_ALERT),//pilotfish (shark) needs this port
-                                       (mach_port_t) ux_exception_port,
-                                       EXCEPTION_DEFAULT| MACH_EXCEPTION_CODES,
-                                       0);
-
-       ut = (uthread_t)get_bsdthread_info(thread);
+       /* Set up exception-to-signal reflection */
+       ux_handler_setup();

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

-    vm_init_before_launchd();
+       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

 
        bsd_init_kprintf("bsd_do_post - done");
 
 
        bsd_init_kprintf("bsd_do_post - done");
 


@@ -1086,17 +1188,18 @@ bsd_autoconf(void)
        kprintf("bsd_autoconf: calling kminit\n");
        kminit();
 
        kprintf("bsd_autoconf: calling kminit\n");
        kminit();
 

-       /* 
+       /*

         * Early startup for bsd pseudodevices.
         */
        {
         * Early startup for bsd pseudodevices.
         */
        {

-           struct pseudo_init *pi;
-       
-           for (pi = pseudo_inits; pi->ps_func; pi++)
-               (*pi->ps_func) (pi->ps_count);
+               struct pseudo_init *pi;
+
+               for (pi = pseudo_inits; pi->ps_func; pi++) {
+                       (*pi->ps_func)(pi->ps_count);
+               }

        }
 
        }
 

-       return( IOKitBSDInit());
+       return IOKitBSDInit();

 }
 
 
 }
 
 


@@ -1104,31 +1207,30 @@ bsd_autoconf(void)
 
 static void
 setconf(void)
 
 static void
 setconf(void)

-{      
-       u_int32_t       flags;
-       kern_return_t   err;
+{
+       u_int32_t       flags;
+       kern_return_t   err;

 
        err = IOFindBSDRoot(rootdevice, sizeof(rootdevice), &rootdev, &flags);
 
        err = IOFindBSDRoot(rootdevice, sizeof(rootdevice), &rootdev, &flags);

-       if( err) {
+       if (err) {

                printf("setconf: IOFindBSDRoot returned an error (%d);"
                printf("setconf: IOFindBSDRoot returned an error (%d);"

-                       "setting rootdevice to 'sd0a'.\n", err); /* XXX DEBUG TEMP */
+                   "setting rootdevice to 'sd0a'.\n", err);     /* XXX DEBUG TEMP */

                rootdev = makedev( 6, 0 );
                strlcpy(rootdevice, "sd0a", sizeof(rootdevice));
                flags = 0;
        }
 
                rootdev = makedev( 6, 0 );
                strlcpy(rootdevice, "sd0a", sizeof(rootdevice));
                flags = 0;
        }
 

-#if NFSCLIENT
-       if( flags & 1 ) {
+#if CONFIG_NETBOOT
+       if (flags & 1) {

                /* network device */
                mountroot = netboot_mountroot;
        } else {
 #endif
                /* network device */
                mountroot = netboot_mountroot;
        } else {
 #endif

-               /* otherwise have vfs determine root filesystem */
-               mountroot = NULL;
-#if NFSCLIENT
-       }
+       /* otherwise have vfs determine root filesystem */
+       mountroot = NULL;
+#if CONFIG_NETBOOT
+}

 #endif
 #endif

-

 }
 
 void
 }
 
 void


@@ -1144,10 +1246,11 @@ bsd_utaskbootstrap(void)
        thread = cloneproc(TASK_NULL, COALITION_NULL, kernproc, FALSE, TRUE);
 
        /* Hold the reference as it will be dropped during shutdown */
        thread = cloneproc(TASK_NULL, COALITION_NULL, kernproc, FALSE, TRUE);
 
        /* Hold the reference as it will be dropped during shutdown */

-       initproc = proc_find(1);                                
+       initproc = proc_find(1);

 #if __PROC_INTERNAL_DEBUG
 #if __PROC_INTERNAL_DEBUG

-       if (initproc == PROC_NULL)
+       if (initproc == PROC_NULL) {

                panic("bsd_utaskbootstrap: initproc not set\n");
                panic("bsd_utaskbootstrap: initproc not set\n");

+       }

 #endif
        /*
         * Since we aren't going back out the normal way to our parent,
 #endif
        /*
         * Since we aren't going back out the normal way to our parent,


@@ -1159,23 +1262,22 @@ bsd_utaskbootstrap(void)
        ut = (struct uthread *)get_bsdthread_info(thread);
        ut->uu_sigmask = 0;
        act_set_astbsd(thread);
        ut = (struct uthread *)get_bsdthread_info(thread);
        ut->uu_sigmask = 0;
        act_set_astbsd(thread);

-       task_clear_return_wait(get_threadtask(thread));
+       task_clear_return_wait(get_threadtask(thread), TCRW_CLEAR_ALL_WAIT);

 }
 
 static void
 parse_bsd_args(void)
 {
 }
 
 static void
 parse_bsd_args(void)
 {

-       char namep[16];
+       char namep[48];

        int msgbuf;
 
        int msgbuf;
 

-       if ( PE_parse_boot_argn("-s", namep, sizeof (namep)))
+       if (PE_parse_boot_argn("-s", namep, sizeof(namep))) {

                boothowto |= RB_SINGLE;
                boothowto |= RB_SINGLE;

+       }

 
 

-       if (PE_parse_boot_argn("-b", namep, sizeof (namep)))
-               boothowto |= RB_NOBOOTRC;
-
-       if (PE_parse_boot_argn("-x", namep, sizeof (namep))) /* safe boot */
+       if (PE_parse_boot_argn("-x", namep, sizeof(namep))) { /* safe boot */

                boothowto |= RB_SAFEBOOT;
                boothowto |= RB_SAFEBOOT;

+       }

 
        if (PE_parse_boot_argn("-minimalboot", namep, sizeof(namep))) {
                /*
 
        if (PE_parse_boot_argn("-minimalboot", namep, sizeof(namep))) {
                /*


@@ -1186,34 +1288,45 @@ parse_bsd_args(void)
                minimalboot = 1;
        }
 
                minimalboot = 1;
        }
 

-#if __arm64__
-       /* disable 64 bit grading */
-       if (PE_parse_boot_argn("-no64exec", namep, sizeof (namep)))
-               bootarg_no64exec = 1;
+#if __x86_64__
+       int no32exec;
+
+       /* disable 32 bit grading */
+       if (PE_parse_boot_argn("no32exec", &no32exec, sizeof(no32exec))) {
+               bootarg_no32exec = !!no32exec;
+       }

 #endif
 
 #endif
 

+       int execfailure_crashreports;
+       /* enable crash reports on various exec failures */
+       if (PE_parse_boot_argn("execfailurecrashes", &execfailure_crashreports, sizeof(execfailure_crashreports))) {
+               bootarg_execfailurereports = !!execfailure_crashreports;
+       }
+

        /* disable vnode_cache_is_authorized() by setting vnode_cache_defeat */
        /* disable vnode_cache_is_authorized() by setting vnode_cache_defeat */

-       if (PE_parse_boot_argn("-vnode_cache_defeat", namep, sizeof (namep)))
+       if (PE_parse_boot_argn("-vnode_cache_defeat", namep, sizeof(namep))) {

                bootarg_vnode_cache_defeat = 1;
                bootarg_vnode_cache_defeat = 1;

+       }

 
 #if DEVELOPMENT || DEBUG
 
 #if DEVELOPMENT || DEBUG

-       if (PE_parse_boot_argn("-disable_aslr", namep, sizeof (namep)))
+       if (PE_parse_boot_argn("-disable_aslr", namep, sizeof(namep))) {

                bootarg_disable_aslr = 1;
                bootarg_disable_aslr = 1;

+       }

 #endif
 
 #endif
 

-       PE_parse_boot_argn("ncl", &ncl, sizeof (ncl));
+       PE_parse_boot_argn("ncl", &ncl, sizeof(ncl));

        if (PE_parse_boot_argn("nbuf", &max_nbuf_headers,
        if (PE_parse_boot_argn("nbuf", &max_nbuf_headers,

-                               sizeof (max_nbuf_headers))) {
+           sizeof(max_nbuf_headers))) {

                customnbuf = 1;
        }
 
 #if CONFIG_MACF
 #if defined (__i386__) || defined (__x86_64__)
                customnbuf = 1;
        }
 
 #if CONFIG_MACF
 #if defined (__i386__) || defined (__x86_64__)

-       PE_parse_boot_argn("policy_check", &policy_check_flags, sizeof (policy_check_flags));
+       PE_parse_boot_argn("policy_check", &policy_check_flags, sizeof(policy_check_flags));

 #endif
 #endif

-#endif /* CONFIG_MACF */
+#endif  /* CONFIG_MACF */

 
 

-       if (PE_parse_boot_argn("msgbuf", &msgbuf, sizeof (msgbuf))) {
+       if (PE_parse_boot_argn("msgbuf", &msgbuf, sizeof(msgbuf))) {

                log_setsize(msgbuf);
                oslog_setsize(msgbuf);
        }
                log_setsize(msgbuf);
                oslog_setsize(msgbuf);
        }


@@ -1223,10 +1336,14 @@ parse_bsd_args(void)
        }
 
 #if CONFIG_JETSAM && (DEVELOPMENT || DEBUG)
        }
 
 #if CONFIG_JETSAM && (DEVELOPMENT || DEBUG)

-       if (PE_parse_boot_argn("-no_vnode_jetsam", namep, sizeof(namep)))
-                bootarg_no_vnode_jetsam = 1;
+       if (PE_parse_boot_argn("-no_vnode_jetsam", namep, sizeof(namep))) {
+               bootarg_no_vnode_jetsam = 1;
+       }

 #endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
 
 #endif /* CONFIG_JETSAM && (DEVELOPMENT || DEBUG) */
 

+       if (PE_parse_boot_argn("-no_vnode_drain", namep, sizeof(namep))) {
+               bootarg_no_vnode_drain = 1;
+       }

 
 #if CONFIG_EMBEDDED
        /*
 
 #if CONFIG_EMBEDDED
        /*


@@ -1255,57 +1372,88 @@ parse_bsd_args(void)
 
        PE_parse_boot_argn("sigrestrict", &sigrestrict_arg, sizeof(sigrestrict_arg));
 
 
        PE_parse_boot_argn("sigrestrict", &sigrestrict_arg, sizeof(sigrestrict_arg));
 

-#if DEVELOPMENT|| DEBUG
+#if DEVELOPMENT || DEBUG

        if (PE_parse_boot_argn("-no_sigsys", namep, sizeof(namep))) {
                send_sigsys = false;
        }
        if (PE_parse_boot_argn("-no_sigsys", namep, sizeof(namep))) {
                send_sigsys = false;
        }

-#endif

 
 

-#if (DEVELOPMENT|| DEBUG)

        if (PE_parse_boot_argn("alt-dyld", dyld_alt_path, sizeof(dyld_alt_path))) {
        if (PE_parse_boot_argn("alt-dyld", dyld_alt_path, sizeof(dyld_alt_path))) {

-        if (strlen(dyld_alt_path) > 0) {
-            use_alt_dyld = 1;
-        }
+               if (strlen(dyld_alt_path) > 0) {
+                       use_alt_dyld = 1;
+               }

        }
        }

-#endif
+       PE_parse_boot_argn("dyld_flags", &dyld_flags, sizeof(dyld_flags));
+
+       if (PE_parse_boot_argn("-disable_syscallfilter", &namep, sizeof(namep))) {
+               syscallfilter_disable = 1;
+       }
+
+#if __arm64__
+       if (PE_parse_boot_argn("legacy_footprint_entitlement_mode", &legacy_footprint_entitlement_mode, sizeof(legacy_footprint_entitlement_mode))) {
+               /*
+                * legacy_footprint_entitlement_mode specifies the behavior we want associated
+                * with the entitlement. The supported modes are:
+                *
+                * LEGACY_FOOTPRINT_ENTITLEMENT_IGNORE:
+                *      Indicates that we want every process to have the memory accounting
+                *      that is available in iOS 12.0 and beyond.
+                *
+                * LEGACY_FOOTPRINT_ENTITLEMENT_IOS11_ACCT:
+                *      Indicates that for every process that has the 'legacy footprint entitlement',
+                *      we want to give it the old iOS 11.0 accounting behavior which accounted some
+                *      of the process's memory to the kernel.
+                *
+                * LEGACY_FOOTPRINT_ENTITLEMENT_LIMIT_INCREASE:
+                *      Indicates that for every process that has the 'legacy footprint entitlement',
+                *      we want it to have a higher memory limit which will help them acclimate to the
+                *      iOS 12.0 (& beyond) accounting behavior that does the right accounting.
+                *      The bonus added to the system-wide task limit to calculate this higher memory limit
+                *      is available in legacy_footprint_bonus_mb.
+                */
+
+               if (legacy_footprint_entitlement_mode < LEGACY_FOOTPRINT_ENTITLEMENT_IGNORE ||
+                   legacy_footprint_entitlement_mode > LEGACY_FOOTPRINT_ENTITLEMENT_LIMIT_INCREASE) {
+                       legacy_footprint_entitlement_mode = LEGACY_FOOTPRINT_ENTITLEMENT_LIMIT_INCREASE;
+               }
+       }
+#endif /* __arm64__ */
+#endif /* DEVELOPMENT || DEBUG */

 }
 
 void
 bsd_exec_setup(int scale)
 {
 }
 
 void
 bsd_exec_setup(int scale)
 {

-

        switch (scale) {
        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;
-                       
+       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;

        }
        bsd_pageable_map_size = (bsd_simul_execs * BSD_PAGEABLE_SIZE_PER_EXEC);
 }
 
        }
        bsd_pageable_map_size = (bsd_simul_execs * BSD_PAGEABLE_SIZE_PER_EXEC);
 }
 

-#if !NFSCLIENT
-int 
+#if !CONFIG_NETBOOT
+int

 netboot_root(void);
 
 netboot_root(void);
 

-int 
+int

 netboot_root(void)
 {
 netboot_root(void)
 {

-       return(0);
+       return 0;

 }
 #endif
 }
 #endif