X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/3903760236c30e3b5ace7a4eefac3a269d68957c..d9a64523371fa019c4575bb400cbbc3a50ac9903:/bsd/kern/bsd_init.c

diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c
index 50270ee4c..23e115db0 100644
--- a/bsd/kern/bsd_init.c
+++ b/bsd/kern/bsd_init.c
@@ -94,6 +94,7 @@
 #include <sys/time.h>
 #include <sys/systm.h>
 #include <sys/mman.h>
+#include <sys/kasl.h>
 
 #include <security/audit/audit.h>
 
@@ -106,19 +107,17 @@
 #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 <sys/ux_exception.h>	/* for ux_exception_port */
-
 #include <sys/reboot.h>
-#include <mach/exception_types.h>
 #include <dev/busvar.h>			/* for pseudo_inits */
 #include <sys/kdebug.h>
+#include <sys/monotonic.h>
 #include <sys/reason.h>
 
 #include <mach/mach_types.h>
@@ -128,12 +127,11 @@
 #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() */
@@ -148,8 +146,6 @@
 #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() */
@@ -167,6 +163,7 @@
 #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() */
 
@@ -197,6 +194,9 @@
 #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 */
@@ -240,7 +240,7 @@ int		hostnamelen;
 char	domainname[MAXDOMNAMELEN];
 int		domainnamelen;
 
-char rootdevice[16]; 	/* device names have at least 9 chars */
+char rootdevice[DEVMAXNAMESIZE];
 
 #if  KMEMSTATS
 struct	kmemstats kmemstats[M_LAST];
@@ -249,6 +249,9 @@ struct	kmemstats kmemstats[M_LAST];
 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 */
@@ -283,6 +286,12 @@ __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)
@@ -312,7 +321,6 @@ kern_return_t bsd_autoconf(void);
 void bsd_utaskbootstrap(void);
 
 static void parse_bsd_args(void);
-extern task_t bsd_init_task;
 #if CONFIG_DEV_KMEM
 extern void dev_kmem_init(void);
 #endif
@@ -382,6 +390,8 @@ 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;
@@ -389,6 +399,11 @@ 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 */
@@ -476,12 +491,21 @@ bsd_init(void)
 	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_fdmlock_grp = lck_grp_alloc_init("proc-fdmlock",  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
@@ -525,7 +549,6 @@ bsd_init(void)
 	 * Initialize the MAC Framework
 	 */
 	mac_policy_initbsd();
-	kernproc->p_mac_enforce = 0;
 
 #if defined (__i386__) || defined (__x86_64__)
 	/*
@@ -536,9 +559,6 @@ bsd_init(void)
 #endif
 #endif /* MAC */
 
-	/* Initialize System Override call */
-	init_system_override();
-	
 	ulock_initialize();
 
 	/*
@@ -652,6 +672,8 @@ bsd_init(void)
 	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. */
 	kernproc->p_limit = &limit0;
@@ -688,12 +710,17 @@ bsd_init(void)
 				&minimum,
 				(vm_size_t)bsd_pageable_map_size,
 				TRUE,
-				VM_FLAGS_ANYWHERE | VM_MAKE_TAG(VM_KERN_MEMORY_BSD),
+				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_init_kprintf("calling fpxlog_init\n");
+	fpxlog_init();
+
 	/*
 	 * Initialize buffers and hash links for buffers
 	 *
@@ -704,12 +731,6 @@ bsd_init(void)
 	bsd_init_kprintf("calling bsd_bufferinit\n");
 	bsd_bufferinit();
 
-	/* Initialize the execve() semaphore */
-	bsd_init_kprintf("calling semaphore_create\n");
-
-	if (ret != KERN_SUCCESS)
-		panic("bsd_init: Failed to create execve semaphore");
-
 	/*
 	 * Initialize the calendar.
 	 */
@@ -752,6 +773,10 @@ bsd_init(void)
 	bsd_init_kprintf("calling knote_init\n");
 	knote_init();
 
+	/* Initialize event handler */
+	bsd_init_kprintf("calling eventhandler_init\n");
+	eventhandler_init();
+
 	/* Initialize for async IO */
 	bsd_init_kprintf("calling aio_init\n");
 	aio_init();
@@ -796,6 +821,8 @@ bsd_init(void)
 	 * until everything is ready.
 	 */
 #if NETWORKING
+	bsd_init_kprintf("calling nwk_wq_init\n");
+	nwk_wq_init();
 	bsd_init_kprintf("calling dlil_init\n");
 	dlil_init();
 	bsd_init_kprintf("calling proto_kpi_init\n");
@@ -811,7 +838,6 @@ bsd_init(void)
 	flow_divert_init();
 #endif	/* FLOW_DIVERT */
 #endif /* SOCKETS */
-
 	kernproc->p_fd->fd_cdir = NULL;
 	kernproc->p_fd->fd_rdir = NULL;
 
@@ -1025,10 +1051,12 @@ bsd_init(void)
 		mountroot_post_hook();
 
 #if 0 /* not yet */
-	consider_zone_gc();
+	consider_zone_gc(FALSE);
 #endif
 
-
+	/* Initialize System Override call */
+	init_system_override();
+	
 	bsd_init_kprintf("done\n");
 }
 
@@ -1036,27 +1064,28 @@ void
 bsdinit_task(void)
 {
 	proc_t p = current_proc();
-	struct uthread *ut;
-	thread_t thread;
 
 	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);
-
-	bsd_init_task = get_threadtask(thread);
+	/* 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
+
+	bsd_init_kprintf("bsd_do_post - done");
+
 	load_init_program(p);
 	lock_trace = 1;
 }
@@ -1140,7 +1169,7 @@ bsd_utaskbootstrap(void)
 	ut = (struct uthread *)get_bsdthread_info(thread);
 	ut->uu_sigmask = 0;
 	act_set_astbsd(thread);
-	proc_clear_return_wait(initproc, thread);
+	task_clear_return_wait(get_threadtask(thread));
 }
 
 static void
@@ -1167,6 +1196,16 @@ parse_bsd_args(void)
 		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)))
@@ -1204,6 +1243,18 @@ parse_bsd_args(void)
 #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 PROC_REF_DEBUG
 	if (PE_parse_boot_argn("-disable_procref_tracking", namep, sizeof(namep))) {