X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/39236c6e673c41db228275375ab7fdb0f837b292..ecc0ceb4089d506a0b8d16686a95817b331af9cb:/bsd/kern/bsd_init.c diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c index ace8c58ba..8cf33e20a 100644 --- a/bsd/kern/bsd_init.c +++ b/bsd/kern/bsd_init.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2013 Apple Inc. All rights reserved. + * Copyright (c) 2000-2015 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * @@ -155,11 +155,17 @@ #include /* for tty_init() */ #include /* proc_uuid_policy_init() */ #include /* flow_divert_init() */ +#include /* for cfil_init() */ +#include /* for necp_init() */ +#include /* for netagent_init() */ +#include /* for pkt_mnglr_init() */ #include /* for utun_register_control() */ -#include /* for ipsec_register_control() */ +#include /* for ipsec_register_control() */ #include /* for net_str_id_init() */ #include /* for netsrc_init() */ #include /* for nstat_init() */ +#include /* for tcp_cc_init() */ +#include /* for mptcp_control_register() */ #include /* for assert() */ #include /* for init_system_override() */ @@ -189,6 +195,7 @@ #include #include + void * get_user_regs(thread_t); /* XXX kludge for */ void IOKitInitializeTime(void); /* XXX */ void IOSleep(unsigned int); /* XXX */ @@ -239,6 +246,11 @@ struct kmemstats kmemstats[M_LAST]; struct vnode *rootvp; int boothowto = RB_DEBUG; +int minimalboot = 0; + +#if PROC_REF_DEBUG +__private_extern__ int proc_ref_tracking_disabled = 0; /* disable panics on leaked proc refs across syscall boundary */ +#endif extern kern_return_t IOFindBSDRoot(char *, unsigned int, dev_t *, u_int32_t *); extern void IOSecureBSDRoot(const char * rootName); @@ -248,6 +260,8 @@ extern void file_lock_init(void); extern void kmeminit(void); extern void bsd_bufferinit(void); extern void throttle_init(void); +extern void macx_init(void); +extern void acct_init(void); extern int serverperfmode; extern int ncl; @@ -265,6 +279,10 @@ void bsd_exec_setup(int); __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. */ @@ -281,15 +299,16 @@ void bsd_utaskbootstrap(void); static void parse_bsd_args(void); extern task_t bsd_init_task; -extern char init_task_failure_data[]; +extern boolean_t init_task_died; +#if CONFIG_DEV_KMEM +extern void dev_kmem_init(void); +#endif extern void time_zone_slock_init(void); -extern void select_wait_queue_init(void); +extern void select_waitq_init(void); static void process_name(const char *, proc_t); static void setconf(void); -funnel_t *kernel_flock; - #if SYSV_SHM extern void sysv_shm_lock_init(void); #endif @@ -300,12 +319,6 @@ extern void sysv_sem_lock_init(void); extern void sysv_msg_lock_init(void); #endif -#if !defined(SECURE_KERNEL) -/* kmem access not enabled by default; can be changed with boot-args */ -/* We don't need to keep this symbol around in RELEASE kernel */ -int setup_kmem = 0; -#endif - #if CONFIG_MACF #if defined (__i386__) || defined (__x86_64__) /* MACF policy_check configuration flags; see policy_check.c for details */ @@ -338,25 +351,23 @@ extern int check_policy_init(int); static void process_name(const char *s, proc_t p) { - size_t 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 -struct rlimit vm_initial_limit_stack = { DFLSSIZ, MAXSSIZ - PAGE_SIZE }; +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 }; -extern thread_t cloneproc(task_t, proc_t, int, int); +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_ucred_mlock_grp; lck_grp_t * proc_mlock_grp; lck_grp_attr_t * proc_lck_grp_attr; lck_attr_t * proc_lck_attr; @@ -384,8 +395,6 @@ void (*unmountroot_pre_hook)(void); * used like any other. */ -extern void IOServicePublishResource(const char *, boolean_t); - void bsd_init(void) { @@ -403,11 +412,6 @@ bsd_init(void) throttle_init(); - kernel_flock = funnel_alloc(KERNEL_FUNNEL); - if (kernel_flock == (funnel_t *)0 ) { - panic("bsd_init: Failed to allocate kernel funnel"); - } - printf(copyright); bsd_init_kprintf("calling kmeminit\n"); @@ -416,6 +420,11 @@ bsd_init(void) bsd_init_kprintf("calling parse_bsd_args\n"); parse_bsd_args(); +#if CONFIG_DEV_KMEM + bsd_init_kprintf("calling dev_kmem_init\n"); + dev_kmem_init(); +#endif + /* Initialize kauth subsystem before instancing the first credential */ bsd_init_kprintf("calling kauth_init\n"); kauth_init(); @@ -444,6 +453,7 @@ bsd_init(void) #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); #endif /* Allocate proc lock attribute */ @@ -459,12 +469,14 @@ bsd_init(void) 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 @@ -500,7 +512,7 @@ bsd_init(void) /* Initialize System Override call */ init_system_override(); - + /* * Create process 0. */ @@ -534,8 +546,8 @@ bsd_init(void) LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash); proc_list_unlock(); -#if CONFIG_LCTX - kernproc->p_lctx = NULL; +#if CONFIG_PERSONAS + kernproc->p_persona = NULL; #endif kernproc->task = kernel_task; @@ -599,7 +611,6 @@ bsd_init(void) #if CONFIG_MACF mac_cred_label_associate_kernel(kernproc->p_ucred); - mac_task_label_update_cred (kernproc->p_ucred, (struct task *) kernproc->task); #endif /* Create the file descriptor table. */ @@ -627,7 +638,7 @@ bsd_init(void) kernproc->p_sigacts = &sigacts0; /* - * Charge root for two processes: init and mach_init. + * Charge root for one process: launchd. */ bsd_init_kprintf("calling chgproccnt\n"); (void)chgproccnt(0, 1); @@ -645,7 +656,7 @@ bsd_init(void) &minimum, (vm_size_t)bsd_pageable_map_size, TRUE, - VM_FLAGS_ANYWHERE, + VM_FLAGS_ANYWHERE | VM_MAKE_TAG(VM_KERN_MEMORY_BSD), &bsd_pageable_map); if (ret != KERN_SUCCESS) panic("bsd_init: Failed to allocate bsd pageable map"); @@ -751,8 +762,8 @@ bsd_init(void) psem_cache_init(); bsd_init_kprintf("calling time_zone_slock_init\n"); time_zone_slock_init(); - bsd_init_kprintf("calling select_wait_queue_init\n"); - select_wait_queue_init(); + bsd_init_kprintf("calling select_waitq_init\n"); + select_waitq_init(); /* * Initialize protocols. Block reception of incoming packets @@ -797,6 +808,12 @@ bsd_init(void) memorystatus_init(); #endif /* CONFIG_MEMORYSTATUS */ + bsd_init_kprintf("calling macx_init\n"); + macx_init(); + + bsd_init_kprintf("calling acct_init\n"); + acct_init(); + #ifdef GPROF /* Initialize kernel profiling. */ kmstartup(); @@ -840,6 +857,21 @@ bsd_init(void) 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 @@ -847,16 +879,14 @@ bsd_init(void) #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(); -#if 0 - /* XXX Hack for early debug stop */ - printf("\nabout to sleep for 10 seconds\n"); - IOSleep( 10 * 1000 ); - /* Debugger("hello"); */ -#endif bsd_init_kprintf("calling inittodr\n"); inittodr(0); @@ -953,7 +983,7 @@ bsd_init(void) devfs_kernel_mount(mounthere); } #endif /* DEVFS */ - + /* Initialize signal state for process 0. */ bsd_init_kprintf("calling siginit\n"); siginit(kernproc); @@ -977,11 +1007,10 @@ bsd_init(void) consider_zone_gc(FALSE); #endif - bsd_init_kprintf("done\n"); + bsd_init_kprintf("done\n"); } -/* Called with kernel funnel held */ void bsdinit_task(void) { @@ -1003,11 +1032,10 @@ bsdinit_task(void) ut = (uthread_t)get_bsdthread_info(thread); bsd_init_task = get_threadtask(thread); - init_task_failure_data[0] = 0; + init_task_died = FALSE; #if CONFIG_MACF mac_cred_label_associate_user(p->p_ucred); - mac_task_label_update_cred (p->p_ucred, (struct task *) p->task); #endif load_init_program(p); lock_trace = 1; @@ -1041,11 +1069,6 @@ setconf(void) 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 - */ err = IOFindBSDRoot(rootdevice, sizeof(rootdevice), &rootdev, &flags); if( err) { printf("setconf: IOFindBSDRoot returned an error (%d);" @@ -1079,7 +1102,7 @@ bsd_utaskbootstrap(void) * Clone the bootstrap process from the kernel process, without * inheriting either task characteristics or memory from the kernel; */ - thread = cloneproc(TASK_NULL, kernproc, FALSE, TRUE); + thread = cloneproc(TASK_NULL, COALITION_NULL, kernproc, FALSE, TRUE); /* Hold the reference as it will be dropped during shutdown */ initproc = proc_find(1); @@ -1097,7 +1120,7 @@ bsd_utaskbootstrap(void) ut = (struct uthread *)get_bsdthread_info(thread); ut->uu_sigmask = 0; act_set_astbsd(thread); - (void) thread_resume(thread); + proc_clear_return_wait(initproc, thread); } static void @@ -1115,6 +1138,16 @@ parse_bsd_args(void) 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; + } + + /* 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; @@ -1129,9 +1162,6 @@ parse_bsd_args(void) sizeof (max_nbuf_headers))) { customnbuf = 1; } -#if !defined(SECURE_KERNEL) - PE_parse_boot_argn("kmem", &setup_kmem, sizeof (setup_kmem)); -#endif #if CONFIG_MACF #if defined (__i386__) || defined (__x86_64__) @@ -1147,6 +1177,20 @@ parse_bsd_args(void) nc_disabled = 1; } +#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 PROC_REF_DEBUG + if (PE_parse_boot_argn("-disable_procref_tracking", namep, sizeof(namep))) { + proc_ref_tracking_disabled = 1; + } +#endif + + PE_parse_boot_argn("sigrestrict", &sigrestrict_arg, sizeof(sigrestrict_arg)); } void