X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/3e170ce000f1506b7b5d2c5c7faec85ceabb573d..d190cdc3f5544636abb56dc1874be391d3e1b148:/bsd/kern/bsd_init.c diff --git a/bsd/kern/bsd_init.c b/bsd/kern/bsd_init.c index d9b90aff2..1d2c04c9d 100644 --- a/bsd/kern/bsd_init.c +++ b/bsd/kern/bsd_init.c @@ -119,6 +119,7 @@ #include #include /* for pseudo_inits */ #include +#include #include #include @@ -191,6 +192,7 @@ #include #endif + #include #include #include @@ -238,7 +240,7 @@ int hostnamelen; char domainname[MAXDOMNAMELEN]; int domainnamelen; -char rootdevice[16]; /* hfs device names have at least 9 chars */ +char rootdevice[16]; /* device names have at least 9 chars */ #if KMEMSTATS struct kmemstats kmemstats[M_LAST]; @@ -252,6 +254,10 @@ int minimalboot = 0; __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 ); @@ -259,8 +265,8 @@ 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 macx_init(void); extern void acct_init(void); extern int serverperfmode; @@ -290,16 +296,23 @@ __private_extern__ int bootarg_no_vnode_jetsam = 0; __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; extern int customnbuf; -void bsd_init(void); kern_return_t bsd_autoconf(void); void bsd_utaskbootstrap(void); static void parse_bsd_args(void); extern task_t bsd_init_task; -extern boolean_t init_task_died; #if CONFIG_DEV_KMEM extern void dev_kmem_init(void); #endif @@ -319,6 +332,8 @@ extern void sysv_sem_lock_init(void); extern void sysv_msg_lock_init(void); #endif +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 */ @@ -367,6 +382,7 @@ 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; @@ -379,6 +395,17 @@ extern lck_mtx_t * execargs_cache_lock; 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 +bsd_early_init(void) +{ + 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 @@ -452,6 +479,7 @@ 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 */ @@ -467,12 +495,14 @@ 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 @@ -509,6 +539,8 @@ bsd_init(void) /* Initialize System Override call */ init_system_override(); + ulock_initialize(); + /* * Create process 0. */ @@ -542,13 +574,21 @@ bsd_init(void) 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; @@ -679,12 +719,6 @@ bsd_init(void) bsd_init_kprintf("calling ubc_init\n"); ubc_init(); - /* - * Initialize device-switches. - */ - bsd_init_kprintf("calling devsw_init() \n"); - devsw_init(); - /* Initialize the file systems. */ bsd_init_kprintf("calling vfsinit\n"); vfsinit(); @@ -761,10 +795,6 @@ bsd_init(void) * Initialize protocols. Block reception of incoming packets * until everything is ready. */ - bsd_init_kprintf("calling sysctl_register_fixed\n"); - sysctl_register_fixed(); - bsd_init_kprintf("calling sysctl_mib_init\n"); - sysctl_mib_init(); #if NETWORKING bsd_init_kprintf("calling dlil_init\n"); dlil_init(); @@ -800,9 +830,6 @@ 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(); @@ -811,9 +838,15 @@ bsd_init(void) kmstartup(); #endif + bsd_init_kprintf("calling sysctl_mib_init\n"); + sysctl_mib_init() + bsd_init_kprintf("calling bsd_autoconf\n"); bsd_autoconf(); + bsd_init_kprintf("calling os_reason_init\n"); + os_reason_init(); + #if CONFIG_DTRACE dtrace_postinit(); #endif @@ -983,10 +1016,6 @@ bsd_init(void) bsd_init_kprintf("calling bsd_utaskbootstrap\n"); bsd_utaskbootstrap(); -#if defined(__LP64__) - kernproc->p_flag |= P_LP64; -#endif - pal_kernel_announce(); bsd_init_kprintf("calling mountroot_post_hook\n"); @@ -996,7 +1025,7 @@ bsd_init(void) mountroot_post_hook(); #if 0 /* not yet */ - consider_zone_gc(FALSE); + consider_zone_gc(); #endif @@ -1024,7 +1053,6 @@ bsdinit_task(void) ut = (uthread_t)get_bsdthread_info(thread); bsd_init_task = get_threadtask(thread); - init_task_died = FALSE; #if CONFIG_MACF mac_cred_label_associate_user(p->p_ucred); @@ -1112,7 +1140,7 @@ 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 @@ -1163,6 +1191,7 @@ parse_bsd_args(void) if (PE_parse_boot_argn("msgbuf", &msgbuf, sizeof (msgbuf))) { log_setsize(msgbuf); + oslog_setsize(msgbuf); } if (PE_parse_boot_argn("-novfscache", namep, sizeof(namep))) { @@ -1182,7 +1211,27 @@ parse_bsd_args(void) } #endif +#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)); + +#if DEVELOPMENT|| DEBUG + 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 (strlen(dyld_alt_path) > 0) { + use_alt_dyld = 1; + } + } +#endif } void