/*
* Initialize the eventhandler mutex and list.
*/
void
eventhandler_init(void)
{
eventhandler_mutex_grp_attr = lck_grp_attr_alloc_init();
eventhandler_mutex_grp = lck_grp_alloc_init("eventhandler",
eventhandler_mutex_grp_attr);
eventhandler_mutex_attr = lck_attr_alloc_init();
el_lock_grp_attr = lck_grp_attr_alloc_init();
el_lock_grp = lck_grp_alloc_init("eventhandler list",
el_lock_grp_attr);
el_lock_attr = lck_attr_alloc_init();
eventhandler_lists_ctxt_init(&evthdlr_lists_ctxt_glb);
}
funnel_t *
funnel_alloc(
int type)
{
lck_mtx_t *m;
funnel_t *fnl;
if (funnel_lck_grp == LCK_GRP_NULL) {
funnel_lck_grp_attr = lck_grp_attr_alloc_init();
funnel_lck_grp = lck_grp_alloc_init("Funnel", funnel_lck_grp_attr);
funnel_lck_attr = lck_attr_alloc_init();
}
if ((fnl = (funnel_t *)kalloc(sizeof(funnel_t))) != 0){
bzero((void *)fnl, sizeof(funnel_t));
if ((m = lck_mtx_alloc_init(funnel_lck_grp, funnel_lck_attr)) == (lck_mtx_t *)NULL) {
kfree(fnl, sizeof(funnel_t));
return(THR_FUNNEL_NULL);
}
fnl->fnl_mutex = m;
fnl->fnl_type = type;
}
return(fnl);
}
/* initial setup done at time of sysinit */
void
pipeinit(void)
{
nbigpipe=0;
vm_size_t zone_size;
zone_size = 8192 * sizeof(struct pipe);
pipe_zone = zinit(sizeof(struct pipe), zone_size, 4096, "pipe zone");
/* allocate lock group attribute and group for pipe mutexes */
pipe_mtx_grp_attr = lck_grp_attr_alloc_init();
pipe_mtx_grp = lck_grp_alloc_init("pipe", pipe_mtx_grp_attr);
/* allocate the lock attribute for pipe mutexes */
pipe_mtx_attr = lck_attr_alloc_init();
/*
* Set up garbage collection for dead pipes
*/
zone_size = (PIPE_GARBAGE_QUEUE_LIMIT + 20) *
sizeof(struct pipe_garbage);
pipe_garbage_zone = (zone_t)zinit(sizeof(struct pipe_garbage),
zone_size, 4096, "pipe garbage zone");
pipe_garbage_lock = lck_mtx_alloc_init(pipe_mtx_grp, pipe_mtx_attr);
}
void
os_reason_init()
{
int reasons_allocated = 0;
/*
* Initialize OS reason group and lock attributes
*/
os_reason_lock_grp_attr = lck_grp_attr_alloc_init();
os_reason_lock_grp = lck_grp_alloc_init("os_reason_lock", os_reason_lock_grp_attr);
os_reason_lock_attr = lck_attr_alloc_init();
/*
* Create OS reason zone.
*/
os_reason_zone = zinit(sizeof(struct os_reason), OS_REASON_MAX_COUNT * sizeof(struct os_reason),
OS_REASON_MAX_COUNT, "os reasons");
if (os_reason_zone == NULL) {
panic("failed to initialize os_reason_zone");
}
/*
* We pre-fill the OS reason zone to reduce the likelihood that
* the jetsam thread and others block when they create an exit
* reason. This pre-filled memory is not-collectable since it's
* foreign memory crammed in as part of zfill().
*/
reasons_allocated = zfill(os_reason_zone, OS_REASON_RESERVE_COUNT);
assert(reasons_allocated > 0);
}
void
tcp_lro_init(void)
{
int i;
bzero(lro_flow_list, sizeof (struct lro_flow) * TCP_LRO_NUM_FLOWS);
for (i = 0; i < TCP_LRO_FLOW_MAP; i++) {
lro_flow_map[i] = TCP_LRO_FLOW_UNINIT;
}
/*
* allocate lock group attribute, group and attribute for tcp_lro_lock
*/
tcp_lro_mtx_grp_attr = lck_grp_attr_alloc_init();
tcp_lro_mtx_grp = lck_grp_alloc_init("tcplro", tcp_lro_mtx_grp_attr);
tcp_lro_mtx_attr = lck_attr_alloc_init();
lck_mtx_init(&tcp_lro_lock, tcp_lro_mtx_grp, tcp_lro_mtx_attr);
tcp_lro_timer = thread_call_allocate(tcp_lro_timer_proc, NULL);
if (tcp_lro_timer == NULL) {
panic_plain("%s: unable to allocate lro timer", __func__);
}
return;
}
/*
* Initialize cnode hash table.
*/
__private_extern__
void
hfs_chashinit()
{
chash_lck_grp_attr= lck_grp_attr_alloc_init();
chash_lck_grp = lck_grp_alloc_init("cnode_hash", chash_lck_grp_attr);
chash_lck_attr = lck_attr_alloc_init();
}
void
init_system_override()
{
sys_override_mtx_grp_attr = lck_grp_attr_alloc_init();
sys_override_mtx_grp = lck_grp_alloc_init("system_override", sys_override_mtx_grp_attr);
sys_override_mtx_attr = lck_attr_alloc_init();
lck_mtx_init(&sys_override_lock, sys_override_mtx_grp, sys_override_mtx_attr);
io_throttle_assert_cnt = cpu_throttle_assert_cnt = 0;
}
/* Initialize the mutex governing access to the SysV msg subsystem */
__private_extern__ void
sysv_msg_lock_init( void )
{
sysv_msg_subsys_lck_grp_attr = lck_grp_attr_alloc_init();
sysv_msg_subsys_lck_grp = lck_grp_alloc_init("sysv_msg_subsys_lock", sysv_msg_subsys_lck_grp_attr);
sysv_msg_subsys_lck_attr = lck_attr_alloc_init();
lck_mtx_init(&sysv_msg_subsys_mutex, sysv_msg_subsys_lck_grp, sysv_msg_subsys_lck_attr);
}
static inline void setup_locks() {
/* Create locks. Cannot be done on the stack. */
osquery.lck_grp_attr = lck_grp_attr_alloc_init();
lck_grp_attr_setstat(osquery.lck_grp_attr);
osquery.lck_grp = lck_grp_alloc_init("osquery", osquery.lck_grp_attr);
osquery.lck_attr = lck_attr_alloc_init();
osquery.mtx = lck_mtx_alloc_init(osquery.lck_grp, osquery.lck_attr);
}
static inline void setup_locks() {
// Create locks. Cannot be done on the stack.
osquery.lck_grp_attr = lck_grp_attr_alloc_init();
lck_grp_attr_setstat(osquery.lck_grp_attr);
osquery.lck_grp = lck_grp_alloc_init("osquery", osquery.lck_grp_attr);
osquery.lck_attr = lck_attr_alloc_init();
// MTX is the IOCTL API handling lock.
// This assures only one daemon will use the kernel API simultaneously.
osquery.mtx = lck_mtx_alloc_init(osquery.lck_grp, osquery.lck_attr);
}
void
bpf_init(__unused void *unused)
{
#ifdef __APPLE__
int i;
int maj;
if (bpf_devsw_installed == 0) {
bpf_devsw_installed = 1;
bpf_mlock_grp_attr = lck_grp_attr_alloc_init();
bpf_mlock_grp = lck_grp_alloc_init("bpf", bpf_mlock_grp_attr);
bpf_mlock_attr = lck_attr_alloc_init();
bpf_mlock = lck_mtx_alloc_init(bpf_mlock_grp, bpf_mlock_attr);
if (bpf_mlock == 0) {
printf("bpf_init: failed to allocate bpf_mlock\n");
bpf_devsw_installed = 0;
return;
}
maj = cdevsw_add(CDEV_MAJOR, &bpf_cdevsw);
if (maj == -1) {
if (bpf_mlock)
lck_mtx_free(bpf_mlock, bpf_mlock_grp);
if (bpf_mlock_attr)
lck_attr_free(bpf_mlock_attr);
if (bpf_mlock_grp)
lck_grp_free(bpf_mlock_grp);
if (bpf_mlock_grp_attr)
lck_grp_attr_free(bpf_mlock_grp_attr);
bpf_mlock = NULL;
bpf_mlock_attr = NULL;
bpf_mlock_grp = NULL;
bpf_mlock_grp_attr = NULL;
bpf_devsw_installed = 0;
printf("bpf_init: failed to allocate a major number!\n");
return;
}
for (i = 0 ; i < NBPFILTER; i++)
bpf_make_dev_t(maj);
}
#else
cdevsw_add(&bpf_cdevsw);
#endif
}
rMutex
rpal_mutex_create
(
)
{
lck_mtx_t* mutex = NULL;
lck_grp_attr_t* gattr = NULL;
lck_attr_t* lattr = NULL;
if( 0 == g_lck_group )
{
rpal_debug_info( "mutex group not created, creating" );
gattr = lck_grp_attr_alloc_init();
if( NULL == gattr )
{
rpal_debug_critical( "could not create mutex group" );
return NULL;
}
lck_grp_attr_setstat( gattr );
g_lck_group = lck_grp_alloc_init( "hcphbs", gattr );
lck_grp_attr_free( gattr );
}
if( NULL == g_lck_group )
{
return NULL;
}
lattr = lck_attr_alloc_init();
if( NULL != lattr )
{
mutex = lck_mtx_alloc_init( g_lck_group, lattr );
lck_attr_free( lattr );
}
else
{
rpal_debug_critical( "could not create mutex attributes" );
}
return mutex;
}
/*
* Initialize raw connection block q.
*/
void
rip_init(struct protosw *pp, struct domain *dp)
{
#pragma unused(dp)
static int rip_initialized = 0;
struct inpcbinfo *pcbinfo;
VERIFY((pp->pr_flags & (PR_INITIALIZED|PR_ATTACHED)) == PR_ATTACHED);
if (rip_initialized)
return;
rip_initialized = 1;
LIST_INIT(&ripcb);
ripcbinfo.ipi_listhead = &ripcb;
/*
* XXX We don't use the hash list for raw IP, but it's easier
* to allocate a one entry hash list than it is to check all
* over the place for ipi_hashbase == NULL.
*/
ripcbinfo.ipi_hashbase = hashinit(1, M_PCB, &ripcbinfo.ipi_hashmask);
ripcbinfo.ipi_porthashbase = hashinit(1, M_PCB, &ripcbinfo.ipi_porthashmask);
ripcbinfo.ipi_zone = zinit(sizeof(struct inpcb),
(4096 * sizeof(struct inpcb)), 4096, "ripzone");
pcbinfo = &ripcbinfo;
/*
* allocate lock group attribute and group for udp pcb mutexes
*/
pcbinfo->ipi_lock_grp_attr = lck_grp_attr_alloc_init();
pcbinfo->ipi_lock_grp = lck_grp_alloc_init("ripcb", pcbinfo->ipi_lock_grp_attr);
/*
* allocate the lock attribute for udp pcb mutexes
*/
pcbinfo->ipi_lock_attr = lck_attr_alloc_init();
if ((pcbinfo->ipi_lock = lck_rw_alloc_init(pcbinfo->ipi_lock_grp,
pcbinfo->ipi_lock_attr)) == NULL) {
panic("%s: unable to allocate PCB lock\n", __func__);
/* NOTREACHED */
}
in_pcbinfo_attach(&ripcbinfo);
}
void lpx_datagram_init()
{
DEBUG_PRINT(DEBUG_MASK_DGRAM_TRACE, ("lpx_datagram_init: Entered.\n"));
// Init Lock.
datagram_mtx_grp_attr = lck_grp_attr_alloc_init();
lck_grp_attr_setdefault(datagram_mtx_grp_attr);
datagram_mtx_grp = lck_grp_alloc_init("datagrampcb", datagram_mtx_grp_attr);
datagram_mtx_attr = lck_attr_alloc_init();
lck_attr_setdefault(datagram_mtx_attr);
if ((lpx_datagram_pcb.lpxp_list_rw = lck_rw_alloc_init(datagram_mtx_grp, datagram_mtx_attr)) == NULL) {
DEBUG_PRINT(DEBUG_MASK_STREAM_ERROR, ("lpx_datagram_init: Can't alloc mtx\n"));
}
return;
}
static kern_return_t
register_locks(void)
{
/* already allocated? */
if (ucode_slock_grp_attr && ucode_slock_grp && ucode_slock_attr && ucode_slock)
return KERN_SUCCESS;
/* allocate lock group attribute and group */
if (!(ucode_slock_grp_attr = lck_grp_attr_alloc_init()))
goto nomem_out;
lck_grp_attr_setstat(ucode_slock_grp_attr);
if (!(ucode_slock_grp = lck_grp_alloc_init("uccode_lock", ucode_slock_grp_attr)))
goto nomem_out;
/* Allocate lock attribute */
if (!(ucode_slock_attr = lck_attr_alloc_init()))
goto nomem_out;
/* Allocate the spin lock */
/* We keep one global spin-lock. We could have one per update
* request... but srsly, why would you update microcode like that?
*/
if (!(ucode_slock = lck_spin_alloc_init(ucode_slock_grp, ucode_slock_attr)))
goto nomem_out;
return KERN_SUCCESS;
nomem_out:
/* clean up */
if (ucode_slock)
lck_spin_free(ucode_slock, ucode_slock_grp);
if (ucode_slock_attr)
lck_attr_free(ucode_slock_attr);
if (ucode_slock_grp)
lck_grp_free(ucode_slock_grp);
if (ucode_slock_grp_attr)
lck_grp_attr_free(ucode_slock_grp_attr);
return KERN_NO_SPACE;
}
ADT_LOCK _adt_xnu_rw_lock_init(int max_threads)
{
ADT_LOCK rwlock;
rwlock = adt_malloc(sizeof(adt_lock_t));
if(rwlock == NULL)
{
goto end;
}
rwlock->rw_lock_grp_attr=lck_grp_attr_alloc_init();
//TODO:not sure if the name needs to be unique
rwlock->rw_lock_grp=lck_grp_alloc_init("adt_rw_lock", rwlock->rw_lock_grp_attr);
rwlock->rw_lock_attr=lck_attr_alloc_init();
rwlock->rw_lock=lck_rw_alloc_init(rwlock->rw_lock_grp, rwlock->rw_lock_attr);
end:
return rwlock;
}
/*
* Initialize the framework; this is currently called as part of BSD init.
*/
__private_extern__ void
mcache_init(void)
{
mcache_bkttype_t *btp;
unsigned int i;
char name[32];
ncpu = ml_get_max_cpus();
mcache_llock_grp_attr = lck_grp_attr_alloc_init();
mcache_llock_grp = lck_grp_alloc_init("mcache.list",
mcache_llock_grp_attr);
mcache_llock_attr = lck_attr_alloc_init();
mcache_llock = lck_mtx_alloc_init(mcache_llock_grp, mcache_llock_attr);
mcache_zone = zinit(MCACHE_ALLOC_SIZE, 256 * MCACHE_ALLOC_SIZE,
PAGE_SIZE, "mcache");
if (mcache_zone == NULL)
panic("mcache_init: failed to allocate mcache zone\n");
zone_change(mcache_zone, Z_CALLERACCT, FALSE);
LIST_INIT(&mcache_head);
for (i = 0; i < sizeof (mcache_bkttype) / sizeof (*btp); i++) {
btp = &mcache_bkttype[i];
(void) snprintf(name, sizeof (name), "bkt_%d",
btp->bt_bktsize);
btp->bt_cache = mcache_create(name,
(btp->bt_bktsize + 1) * sizeof (void *), 0, 0, MCR_SLEEP);
}
PE_parse_boot_argn("mcache_flags", &mcache_flags, sizeof (mcache_flags));
mcache_flags &= MCF_FLAGS_MASK;
mcache_audit_cache = mcache_create("audit", sizeof (mcache_audit_t),
0, 0, MCR_SLEEP);
mcache_reap_interval = 15 * hz;
mcache_applyall(mcache_cache_bkt_enable);
mcache_ready = 1;
}
void
zfs_context_init(void)
{
uint64_t kern_mem_size;
zfs_lock_attr = lck_attr_alloc_init();
zfs_group_attr = lck_grp_attr_alloc_init();
#if 0
lck_attr_setdebug(zfs_lock_attr);
#endif
zfs_mutex_group = lck_grp_alloc_init("zfs-mutex", zfs_group_attr);
zfs_rwlock_group = lck_grp_alloc_init("zfs-rwlock", zfs_group_attr);
zfs_spinlock_group = lck_grp_alloc_init("zfs-spinlock", zfs_group_attr);
zfs_kmem_alloc_tag = OSMalloc_Tagalloc("ZFS general purpose",
OSMT_DEFAULT);
max_ncpus = 1;
/* kernel memory space is 4 GB max */
kern_mem_size = MIN(max_mem, (uint64_t)0x0FFFFFFFFULL);
/* Calculate number of pages of memory on the system */
physmem = kern_mem_size / PAGE_SIZE;
/* Constrain our memory use on smaller memory systems */
if (kern_mem_size <= 0x20000000)
zfs_footprint.maximum = kern_mem_size / 7; /* 512MB: ~15 % */
else if (kern_mem_size <= 0x30000000)
zfs_footprint.maximum = kern_mem_size / 5; /* 768MB: ~20 % */
else if (kern_mem_size <= 0x40000000)
zfs_footprint.maximum = kern_mem_size / 3; /* 1GB: ~33 % */
else /* set to 1GB limit maximum*/
zfs_footprint.maximum = MIN((kern_mem_size / 2), 0x40000000);
recalc_target_footprint(100);
printf("zfs_context_init: footprint.maximum=%lu, footprint.target=%lu\n",
zfs_footprint.maximum, zfs_footprint.target);
}
/*
* Initialise cache headers
*/
int
nullfs_init(__unused struct vfsconf * vfsp)
{
NULLFSDEBUG("%s\n", __FUNCTION__);
/* assuming for now that this happens immediately and by default after fs
* installation */
null_hashlck_grp_attr = lck_grp_attr_alloc_init();
if (null_hashlck_grp_attr == NULL) {
goto error;
}
null_hashlck_grp = lck_grp_alloc_init("com.apple.filesystems.nullfs", null_hashlck_grp_attr);
if (null_hashlck_grp == NULL) {
goto error;
}
null_hashlck_attr = lck_attr_alloc_init();
if (null_hashlck_attr == NULL) {
goto error;
}
lck_mtx_init(&null_hashmtx, null_hashlck_grp, null_hashlck_attr);
null_node_hashtbl = hashinit(NULL_HASH_SIZE, M_TEMP, &null_hash_mask);
NULLFSDEBUG("%s finished\n", __FUNCTION__);
return (0);
error:
printf("NULLFS: failed to get lock element\n");
if (null_hashlck_grp_attr) {
lck_grp_attr_free(null_hashlck_grp_attr);
null_hashlck_grp_attr = NULL;
}
if (null_hashlck_grp) {
lck_grp_free(null_hashlck_grp);
null_hashlck_grp = NULL;
}
if (null_hashlck_attr) {
lck_attr_free(null_hashlck_attr);
null_hashlck_attr = NULL;
}
return KERN_FAILURE;
}
int
union_init(__unused struct vfsconf *vfsp)
{
int i;
union_lck_grp_attr= lck_grp_attr_alloc_init();
#if DIAGNOSTIC
lck_grp_attr_setstat(union_lck_grp_attr);
#endif
union_lck_grp = lck_grp_alloc_init("union", union_lck_grp_attr);
union_lck_attr = lck_attr_alloc_init();
#if DIAGNOSTIC
lck_attr_setdebug(union_lck_attr);
#endif
union_mtxp = lck_mtx_alloc_init(union_lck_grp, union_lck_attr);
for (i = 0; i < NHASH; i++)
LIST_INIT(&unhead[i]);
bzero((caddr_t) unvplock, sizeof(unvplock));
/* add the hook for getdirentries */
union_dircheckp = union_dircheck;
return (0);
}
/*
* Initialise reassembly queue and fragment identifier.
*/
void
frag6_init(void)
{
/* ip6q_alloc() uses mbufs for IPv6 fragment queue structures */
_CASSERT(sizeof (struct ip6q) <= _MLEN);
/* ip6af_alloc() uses mbufs for IPv6 fragment queue structures */
_CASSERT(sizeof (struct ip6asfrag) <= _MLEN);
/* IPv6 fragment reassembly queue lock */
ip6qlock_grp_attr = lck_grp_attr_alloc_init();
ip6qlock_grp = lck_grp_alloc_init("ip6qlock", ip6qlock_grp_attr);
ip6qlock_attr = lck_attr_alloc_init();
lck_mtx_init(&ip6qlock, ip6qlock_grp, ip6qlock_attr);
lck_mtx_lock(&ip6qlock);
/* Initialize IPv6 reassembly queue. */
ip6q.ip6q_next = ip6q.ip6q_prev = &ip6q;
/* same limits as IPv4 */
ip6_maxfragpackets = nmbclusters / 32;
ip6_maxfrags = ip6_maxfragpackets * 2;
ip6q_updateparams();
lck_mtx_unlock(&ip6qlock);
}
void
udp_init()
{
vm_size_t str_size;
struct inpcbinfo *pcbinfo;
LIST_INIT(&udb);
udbinfo.listhead = &udb;
udbinfo.hashbase = hashinit(UDBHASHSIZE, M_PCB, &udbinfo.hashmask);
udbinfo.porthashbase = hashinit(UDBHASHSIZE, M_PCB,
&udbinfo.porthashmask);
#ifdef __APPLE__
str_size = (vm_size_t) sizeof(struct inpcb);
udbinfo.ipi_zone = (void *) zinit(str_size, 80000*str_size, 8192, "udpcb");
pcbinfo = &udbinfo;
/*
* allocate lock group attribute and group for udp pcb mutexes
*/
pcbinfo->mtx_grp_attr = lck_grp_attr_alloc_init();
pcbinfo->mtx_grp = lck_grp_alloc_init("udppcb", pcbinfo->mtx_grp_attr);
pcbinfo->mtx_attr = lck_attr_alloc_init();
if ((pcbinfo->mtx = lck_rw_alloc_init(pcbinfo->mtx_grp, pcbinfo->mtx_attr)) == NULL)
return; /* pretty much dead if this fails... */
in_pcb_nat_init(&udbinfo, AF_INET, IPPROTO_UDP, SOCK_DGRAM);
#else
udbinfo.ipi_zone = zinit("udpcb", sizeof(struct inpcb), maxsockets,
ZONE_INTERRUPT, 0);
#endif
#if 0
/* for pcb sharing testing only */
stat = in_pcb_new_share_client(&udbinfo, &fake_owner);
kprintf("udp_init in_pcb_new_share_client - stat = %d\n", stat);
laddr.s_addr = 0x11646464;
faddr.s_addr = 0x11646465;
lport = 1500;
in_pcb_grab_port(&udbinfo, 0, laddr, &lport, faddr, 1600, 0, fake_owner);
kprintf("udp_init in_pcb_grab_port - stat = %d\n", stat);
stat = in_pcb_rem_share_client(&udbinfo, fake_owner);
kprintf("udp_init in_pcb_rem_share_client - stat = %d\n", stat);
stat = in_pcb_new_share_client(&udbinfo, &fake_owner);
kprintf("udp_init in_pcb_new_share_client(2) - stat = %d\n", stat);
laddr.s_addr = 0x11646464;
faddr.s_addr = 0x11646465;
lport = 1500;
stat = in_pcb_grab_port(&udbinfo, 0, laddr, &lport, faddr, 1600, 0, fake_owner);
kprintf("udp_init in_pcb_grab_port(2) - stat = %d\n", stat);
#endif
}
/*
* This function is called very early on in the Mach startup, from the
* function start_kernel_threads() in osfmk/kern/startup.c. It's called
* in the context of the current (startup) task using a call to the
* function kernel_thread_create() to jump into start_kernel_threads().
* Internally, kernel_thread_create() calls thread_create_internal(),
* which calls uthread_alloc(). The function of uthread_alloc() is
* normally to allocate a uthread structure, and fill out the uu_sigmask,
* uu_context fields. It skips filling these out in the case of the "task"
* being "kernel_task", because the order of operation is inverted. To
* account for that, we need to manually fill in at least the contents
* of the uu_context.vc_ucred field so that the uthread structure can be
* used like any other.
*/
void
bsd_init(void)
{
struct uthread *ut;
unsigned int i;
#if __i386__ || __x86_64__
int error;
#endif
struct vfs_context context;
kern_return_t ret;
struct ucred temp_cred;
#define bsd_init_kprintf(x...) /* kprintf("bsd_init: " x) */
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");
kmeminit();
bsd_init_kprintf("calling parse_bsd_args\n");
parse_bsd_args();
/* Initialize kauth subsystem before instancing the first credential */
bsd_init_kprintf("calling kauth_init\n");
kauth_init();
/* Initialize process and pgrp structures. */
bsd_init_kprintf("calling procinit\n");
procinit();
/* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/
tty_init();
kernproc = &proc0; /* implicitly bzero'ed */
/* kernel_task->proc = kernproc; */
set_bsdtask_info(kernel_task,(void *)kernproc);
/* give kernproc a name */
bsd_init_kprintf("calling process_name\n");
process_name("kernel_task", kernproc);
/* allocate proc lock group attribute and group */
bsd_init_kprintf("calling lck_grp_attr_alloc_init\n");
proc_lck_grp_attr= lck_grp_attr_alloc_init();
proc_lck_grp = lck_grp_alloc_init("proc", proc_lck_grp_attr);
#ifndef CONFIG_EMBEDDED
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_mlock_grp = lck_grp_alloc_init("proc-mlock", proc_lck_grp_attr);
#endif
/* 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
#ifdef CONFIG_EMBEDDED
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_spin_init(&kernproc->p_slock, proc_lck_grp, proc_lck_attr);
#else
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_spin_init(&kernproc->p_slock, proc_slock_grp, proc_lck_attr);
#endif
execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
execargs_cache_size = bsd_simul_execs;
execargs_free_count = bsd_simul_execs;
execargs_cache = (vm_offset_t *)kalloc(bsd_simul_execs * sizeof(vm_offset_t));
bzero(execargs_cache, bsd_simul_execs * sizeof(vm_offset_t));
if (current_task() != kernel_task)
printf("bsd_init: We have a problem, "
"current task is not kernel task\n");
bsd_init_kprintf("calling get_bsdthread_info\n");
ut = (uthread_t)get_bsdthread_info(current_thread());
#if CONFIG_MACF
/*
* Initialize the MAC Framework
*/
mac_policy_initbsd();
kernproc->p_mac_enforce = 0;
#endif /* MAC */
/*
* Create process 0.
*/
proc_list_lock();
LIST_INSERT_HEAD(&allproc, kernproc, p_list);
kernproc->p_pgrp = &pgrp0;
LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
LIST_INIT(&pgrp0.pg_members);
#ifdef CONFIG_EMBEDDED
lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr);
#else
lck_mtx_init(&pgrp0.pg_mlock, proc_mlock_grp, proc_lck_attr);
#endif
/* There is no other bsd thread this point and is safe without pgrp lock */
LIST_INSERT_HEAD(&pgrp0.pg_members, kernproc, p_pglist);
kernproc->p_listflag |= P_LIST_INPGRP;
kernproc->p_pgrpid = 0;
pgrp0.pg_session = &session0;
pgrp0.pg_membercnt = 1;
session0.s_count = 1;
session0.s_leader = kernproc;
session0.s_listflags = 0;
#ifdef CONFIG_EMBEDDED
lck_mtx_init(&session0.s_mlock, proc_lck_grp, proc_lck_attr);
#else
lck_mtx_init(&session0.s_mlock, proc_mlock_grp, proc_lck_attr);
#endif
LIST_INSERT_HEAD(SESSHASH(0), &session0, s_hash);
proc_list_unlock();
#if CONFIG_LCTX
kernproc->p_lctx = NULL;
#endif
kernproc->task = kernel_task;
kernproc->p_stat = SRUN;
kernproc->p_flag = P_SYSTEM;
kernproc->p_nice = NZERO;
kernproc->p_pptr = kernproc;
TAILQ_INIT(&kernproc->p_uthlist);
TAILQ_INSERT_TAIL(&kernproc->p_uthlist, ut, uu_list);
kernproc->sigwait = FALSE;
kernproc->sigwait_thread = THREAD_NULL;
kernproc->exit_thread = THREAD_NULL;
kernproc->p_csflags = CS_VALID;
/*
* Create credential. This also Initializes the audit information.
*/
bsd_init_kprintf("calling bzero\n");
bzero(&temp_cred, sizeof(temp_cred));
temp_cred.cr_ngroups = 1;
temp_cred.cr_audit.as_aia_p = &audit_default_aia;
/* XXX the following will go away with cr_au */
temp_cred.cr_au.ai_auid = AU_DEFAUDITID;
bsd_init_kprintf("calling kauth_cred_create\n");
kernproc->p_ucred = kauth_cred_create(&temp_cred);
/* give the (already exisiting) initial thread a reference on it */
bsd_init_kprintf("calling kauth_cred_ref\n");
kauth_cred_ref(kernproc->p_ucred);
ut->uu_context.vc_ucred = kernproc->p_ucred;
ut->uu_context.vc_thread = current_thread();
TAILQ_INIT(&kernproc->p_aio_activeq);
TAILQ_INIT(&kernproc->p_aio_doneq);
kernproc->p_aio_total_count = 0;
kernproc->p_aio_active_count = 0;
bsd_init_kprintf("calling file_lock_init\n");
file_lock_init();
#if CONFIG_MACF
mac_cred_label_associate_kernel(kernproc->p_ucred);
mac_task_label_update_cred (kernproc->p_ucred, (struct task *) kernproc->task);
#endif
/* Create the file descriptor table. */
filedesc0.fd_refcnt = 1+1; /* +1 so shutdown will not _FREE_ZONE */
kernproc->p_fd = &filedesc0;
filedesc0.fd_cmask = cmask;
filedesc0.fd_knlistsize = -1;
filedesc0.fd_knlist = NULL;
filedesc0.fd_knhash = NULL;
filedesc0.fd_knhashmask = 0;
/* 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;
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_STACK] = vm_initial_limit_stack;
limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
limit0.pl_refcnt = 1;
kernproc->p_stats = &pstats0;
kernproc->p_sigacts = &sigacts0;
/*
* Charge root for two processes: init and mach_init.
*/
bsd_init_kprintf("calling chgproccnt\n");
(void)chgproccnt(0, 1);
/*
* Allocate a kernel submap for pageable memory
* for temporary copying (execve()).
*/
{
vm_offset_t minimum;
bsd_init_kprintf("calling kmem_suballoc\n");
ret = kmem_suballoc(kernel_map,
&minimum,
(vm_size_t)bsd_pageable_map_size,
TRUE,
VM_FLAGS_ANYWHERE,
&bsd_pageable_map);
if (ret != KERN_SUCCESS)
panic("bsd_init: Failed to allocate bsd pageable map");
}
/*
* Initialize buffers and hash links for buffers
*
* SIDE EFFECT: Starts a thread for bcleanbuf_thread(), so must
* happen after a credential has been associated with
* the kernel task.
*/
bsd_init_kprintf("calling bsd_bufferinit\n");
bsd_bufferinit();
/* Initialize the execve() semaphore */
bsd_init_kprintf("calling semaphore_create\n");
if (ret != KERN_SUCCESS)
panic("bsd_init: Failed to create execve semaphore");
/*
* Initialize the calendar.
*/
bsd_init_kprintf("calling IOKitInitializeTime\n");
IOKitInitializeTime();
if (turn_on_log_leaks && !new_nkdbufs)
new_nkdbufs = 200000;
start_kern_tracing(new_nkdbufs);
if (turn_on_log_leaks)
log_leaks = 1;
bsd_init_kprintf("calling ubc_init\n");
ubc_init();
/* Initialize the file systems. */
bsd_init_kprintf("calling vfsinit\n");
vfsinit();
#if SOCKETS
/* Initialize per-CPU cache allocator */
mcache_init();
/* Initialize mbuf's. */
bsd_init_kprintf("calling mbinit\n");
mbinit();
net_str_id_init(); /* for mbuf tags */
#endif /* SOCKETS */
/*
* Initializes security event auditing.
* XXX: Should/could this occur later?
*/
#if CONFIG_AUDIT
bsd_init_kprintf("calling audit_init\n");
audit_init();
#endif
/* Initialize kqueues */
bsd_init_kprintf("calling knote_init\n");
knote_init();
/* Initialize for async IO */
bsd_init_kprintf("calling aio_init\n");
aio_init();
/* Initialize pipes */
bsd_init_kprintf("calling pipeinit\n");
pipeinit();
/* Initialize SysV shm subsystem locks; the subsystem proper is
* initialized through a sysctl.
*/
#if SYSV_SHM
bsd_init_kprintf("calling sysv_shm_lock_init\n");
sysv_shm_lock_init();
#endif
#if SYSV_SEM
bsd_init_kprintf("calling sysv_sem_lock_init\n");
sysv_sem_lock_init();
#endif
#if SYSV_MSG
bsd_init_kprintf("sysv_msg_lock_init\n");
sysv_msg_lock_init();
#endif
bsd_init_kprintf("calling pshm_lock_init\n");
pshm_lock_init();
bsd_init_kprintf("calling psem_lock_init\n");
psem_lock_init();
pthread_init();
/* POSIX Shm and Sem */
bsd_init_kprintf("calling pshm_cache_init\n");
pshm_cache_init();
bsd_init_kprintf("calling psem_cache_init\n");
psem_cache_init();
bsd_init_kprintf("calling time_zone_slock_init\n");
time_zone_slock_init();
/* Stack snapshot facility lock */
stackshot_lock_init();
/*
* 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();
bsd_init_kprintf("calling proto_kpi_init\n");
proto_kpi_init();
#endif /* NETWORKING */
#if SOCKETS
bsd_init_kprintf("calling socketinit\n");
socketinit();
bsd_init_kprintf("calling domaininit\n");
domaininit();
#endif /* SOCKETS */
kernproc->p_fd->fd_cdir = NULL;
kernproc->p_fd->fd_rdir = NULL;
#if CONFIG_EMBEDDED
/* Initialize kernel memory status notifications */
bsd_init_kprintf("calling kern_memorystatus_init\n");
kern_memorystatus_init();
#endif
#ifdef GPROF
/* Initialize kernel profiling. */
kmstartup();
#endif
/* kick off timeout driven events by calling first time */
thread_wakeup(&lbolt);
timeout(lightning_bolt, 0, hz);
bsd_init_kprintf("calling bsd_autoconf\n");
bsd_autoconf();
#if CONFIG_DTRACE
dtrace_postinit();
#endif
/*
* We attach the loopback interface *way* down here to ensure
* it happens after autoconf(), otherwise it becomes the
* "primary" interface.
*/
#include <loop.h>
#if NLOOP > 0
bsd_init_kprintf("calling loopattach\n");
loopattach(); /* XXX */
#endif
#if PFLOG
/* Initialize packet filter log interface */
pfloginit();
#endif /* PFLOG */
#if NETHER > 0
/* Register the built-in dlil ethernet interface family */
bsd_init_kprintf("calling ether_family_init\n");
ether_family_init();
#endif /* ETHER */
#if NETWORKING
/* Call any kext code that wants to run just after network init */
bsd_init_kprintf("calling net_init_run\n");
net_init_run();
/* register user tunnel kernel control handler */
utun_register_control();
#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);
#if CONFIG_EMBEDDED
{
/* print out early VM statistics */
kern_return_t kr1;
vm_statistics_data_t stat;
mach_msg_type_number_t count;
count = HOST_VM_INFO_COUNT;
kr1 = host_statistics(host_self(),
HOST_VM_INFO,
(host_info_t)&stat,
&count);
kprintf("Mach Virtual Memory Statistics (page size of 4096) bytes\n"
"Pages free:\t\t\t%u.\n"
"Pages active:\t\t\t%u.\n"
"Pages inactive:\t\t\t%u.\n"
"Pages wired down:\t\t%u.\n"
"\"Translation faults\":\t\t%u.\n"
"Pages copy-on-write:\t\t%u.\n"
"Pages zero filled:\t\t%u.\n"
"Pages reactivated:\t\t%u.\n"
"Pageins:\t\t\t%u.\n"
"Pageouts:\t\t\t%u.\n"
"Object cache: %u hits of %u lookups (%d%% hit rate)\n",
stat.free_count,
stat.active_count,
stat.inactive_count,
stat.wire_count,
stat.faults,
stat.cow_faults,
stat.zero_fill_count,
stat.reactivations,
stat.pageins,
stat.pageouts,
stat.hits,
stat.lookups,
(stat.hits == 0) ? 100 :
((stat.lookups * 100) / stat.hits));
}
#endif /* CONFIG_EMBEDDED */
/* Mount the root file system. */
while( TRUE) {
int err;
bsd_init_kprintf("calling setconf\n");
setconf();
bsd_init_kprintf("vfs_mountroot\n");
if (0 == (err = vfs_mountroot()))
break;
rootdevice[0] = '\0';
#if NFSCLIENT
if (mountroot == netboot_mountroot) {
PE_display_icon( 0, "noroot"); /* XXX a netboot-specific icon would be nicer */
vc_progress_set(FALSE, 0);
for (i=1; 1; i*=2) {
printf("bsd_init: failed to mount network root, error %d, %s\n",
err, PE_boot_args());
printf("We are hanging here...\n");
IOSleep(i*60*1000);
}
/*NOTREACHED*/
}
#endif
printf("cannot mount root, errno = %d\n", err);
boothowto |= RB_ASKNAME;
}
IOSecureBSDRoot(rootdevice);
context.vc_thread = current_thread();
context.vc_ucred = kernproc->p_ucred;
mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
bsd_init_kprintf("calling VFS_ROOT\n");
/* Get the vnode for '/'. Set fdp->fd_fd.fd_cdir to reference it. */
if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context))
panic("bsd_init: cannot find root vnode: %s", PE_boot_args());
rootvnode->v_flag |= VROOT;
(void)vnode_ref(rootvnode);
(void)vnode_put(rootvnode);
filedesc0.fd_cdir = rootvnode;
#if NFSCLIENT
if (mountroot == netboot_mountroot) {
int err;
/* post mount setup */
if ((err = netboot_setup()) != 0) {
PE_display_icon( 0, "noroot"); /* XXX a netboot-specific icon would be nicer */
vc_progress_set(FALSE, 0);
for (i=1; 1; i*=2) {
printf("bsd_init: NetBoot could not find root, error %d: %s\n",
err, PE_boot_args());
printf("We are hanging here...\n");
IOSleep(i*60*1000);
}
/*NOTREACHED*/
}
}
#endif
#if CONFIG_IMAGEBOOT
/*
* See if a system disk image is present. If so, mount it and
* switch the root vnode to point to it
*/
if(imageboot_needed()) {
int err;
/* An image was found */
if((err = imageboot_setup())) {
/*
* this is not fatal. Keep trying to root
* off the original media
*/
printf("%s: imageboot could not find root, %d\n",
__FUNCTION__, err);
}
}
#endif /* CONFIG_IMAGEBOOT */
/* set initial time; all other resource data is already zero'ed */
microtime(&kernproc->p_start);
kernproc->p_stats->p_start = kernproc->p_start; /* for compat */
#if DEVFS
{
char mounthere[] = "/dev"; /* !const because of internal casting */
bsd_init_kprintf("calling devfs_kernel_mount\n");
devfs_kernel_mount(mounthere);
}
#endif /* DEVFS */
/* Initialize signal state for process 0. */
bsd_init_kprintf("calling siginit\n");
siginit(kernproc);
bsd_init_kprintf("calling bsd_utaskbootstrap\n");
bsd_utaskbootstrap();
#if defined(__LP64__)
kernproc->p_flag |= P_LP64;
printf("Kernel is LP64\n");
#endif
#if __i386__ || __x86_64__
/* this should be done after the root filesystem is mounted */
error = set_archhandler(kernproc, CPU_TYPE_POWERPC);
// 10/30/08 - gab: <rdar://problem/6324501>
// if default 'translate' can't be found, see if the understudy is available
if (ENOENT == error) {
strlcpy(exec_archhandler_ppc.path, kRosettaStandIn_str, MAXPATHLEN);
error = set_archhandler(kernproc, CPU_TYPE_POWERPC);
}
if (error) /* XXX make more generic */
exec_archhandler_ppc.path[0] = 0;
#endif
bsd_init_kprintf("calling mountroot_post_hook\n");
/* invoke post-root-mount hook */
if (mountroot_post_hook != NULL)
mountroot_post_hook();
#if 0 /* not yet */
consider_zone_gc(FALSE);
#endif
bsd_init_kprintf("done\n");
}
void
domaininit(void)
{
register struct domain *dp;
/*
* allocate lock group attribute and group for domain mutexes
*/
domain_proto_mtx_grp_attr = lck_grp_attr_alloc_init();
domain_proto_mtx_grp = lck_grp_alloc_init("domain", domain_proto_mtx_grp_attr);
/*
* allocate the lock attribute for per domain mutexes
*/
domain_proto_mtx_attr = lck_attr_alloc_init();
if ((domain_proto_mtx = lck_mtx_alloc_init(domain_proto_mtx_grp, domain_proto_mtx_attr)) == NULL) {
printf("domaininit: can't init domain mtx for domain list\n");
return; /* we have a problem... */
}
/*
* Add all the static domains to the domains list
*/
lck_mtx_lock(domain_proto_mtx);
concat_domain(&localdomain);
concat_domain(&routedomain);
concat_domain(&inetdomain);
#if NETAT
concat_domain(&atalkdomain);
#endif
#if INET6
concat_domain(&inet6domain);
#endif
#if IPSEC
concat_domain(&keydomain);
#endif
#if NS
concat_domain(&nsdomain);
#endif
#if ISO
concat_domain(&isodomain);
#endif
#if CCITT
concat_domain(&ccittdomain);
#endif
concat_domain(&ndrvdomain);
concat_domain(&systemdomain);
/*
* Now ask them all to init (XXX including the routing domain,
* see above)
*/
for (dp = domains; dp; dp = dp->dom_next)
init_domain(dp);
lck_mtx_unlock(domain_proto_mtx);
timeout(pffasttimo, NULL, 1);
timeout(pfslowtimo, NULL, 1);
}
/*
* IP6 initialization: fill in IP6 protocol switch table.
* All protocols not implemented in kernel go to raw IP6 protocol handler.
*/
void
ip6_init()
{
struct ip6protosw *pr;
int i;
struct timeval tv;
#if DIAGNOSTIC
if (sizeof(struct protosw) != sizeof(struct ip6protosw))
panic("sizeof(protosw) != sizeof(ip6protosw)");
#endif
pr = (struct ip6protosw *)pffindproto_locked(PF_INET6, IPPROTO_RAW, SOCK_RAW);
if (pr == 0)
panic("ip6_init");
for (i = 0; i < IPPROTO_MAX; i++)
ip6_protox[i] = pr;
for (pr = (struct ip6protosw*)inet6domain.dom_protosw; pr; pr = pr->pr_next) {
if(!(pr->pr_domain)) continue; /* If uninitialized, skip */
if (pr->pr_domain->dom_family == PF_INET6 &&
pr->pr_protocol && pr->pr_protocol != IPPROTO_RAW) {
ip6_protox[pr->pr_protocol] = pr;
}
}
ip6_mutex_grp_attr = lck_grp_attr_alloc_init();
ip6_mutex_grp = lck_grp_alloc_init("ip6", ip6_mutex_grp_attr);
ip6_mutex_attr = lck_attr_alloc_init();
if ((ip6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
panic("ip6_init: can't alloc ip6_mutex\n");
}
if ((dad6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
panic("ip6_init: can't alloc dad6_mutex\n");
}
if ((nd6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
panic("ip6_init: can't alloc nd6_mutex\n");
}
if ((prefix6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
panic("ip6_init: can't alloc prefix6_mutex\n");
}
if ((scope6_mutex = lck_mtx_alloc_init(ip6_mutex_grp, ip6_mutex_attr)) == NULL) {
panic("ip6_init: can't alloc scope6_mutex\n");
}
inet6domain.dom_flags = DOM_REENTRANT;
ip6intrq.ifq_maxlen = ip6qmaxlen;
in6_ifaddr_init();
nd6_init();
frag6_init();
icmp6_init();
/*
* in many cases, random() here does NOT return random number
* as initialization during bootstrap time occur in fixed order.
*/
microtime(&tv);
ip6_flow_seq = random() ^ tv.tv_usec;
microtime(&tv);
ip6_desync_factor = (random() ^ tv.tv_usec) % MAX_TEMP_DESYNC_FACTOR;
timeout(ip6_init2, (caddr_t)0, 1 * hz);
lck_mtx_unlock(domain_proto_mtx);
proto_register_input(PF_INET6, ip6_proto_input, NULL, 0);
lck_mtx_lock(domain_proto_mtx);
}
/**
* Helper function to create XNU VFS vnode object.
*
* @param mp Mount data structure
* @param type vnode type (directory, regular file, etc)
* @param pParent Parent vnode object (NULL for VBoxVFS root vnode)
* @param fIsRoot Flag that indicates if created vnode object is
* VBoxVFS root vnode (TRUE for VBoxVFS root vnode, FALSE
* for all aother vnodes)
* @param Path within Shared Folder
* @param ret Returned newly created vnode
*
* @return 0 on success, error code otherwise
*/
int
vboxvfs_create_vnode_internal(struct mount *mp, enum vtype type, vnode_t pParent, int fIsRoot, PSHFLSTRING Path, vnode_t *ret)
{
int rc;
vnode_t vnode;
vboxvfs_vnode_t *pVnodeData;
vboxvfs_mount_t *pMount;
AssertReturn(mp, EINVAL);
pMount = (vboxvfs_mount_t *)vfs_fsprivate(mp);
AssertReturn(pMount, EINVAL);
AssertReturn(pMount->pLockGroup, EINVAL);
AssertReturn(Path, EINVAL);
pVnodeData = (vboxvfs_vnode_t *)RTMemAllocZ(sizeof(vboxvfs_vnode_t));
AssertReturn(pVnodeData, ENOMEM);
/* Initialize private data */
pVnodeData->pHandle = SHFL_HANDLE_NIL;
pVnodeData->pPath = Path;
pVnodeData->pLockAttr = lck_attr_alloc_init();
if (pVnodeData->pLockAttr)
{
pVnodeData->pLock = lck_rw_alloc_init(pMount->pLockGroup, pVnodeData->pLockAttr);
if (pVnodeData->pLock)
{
struct vnode_fsparam vnode_params;
vnode_params.vnfs_mp = mp;
vnode_params.vnfs_vtype = type;
vnode_params.vnfs_str = NULL;
vnode_params.vnfs_dvp = pParent;
vnode_params.vnfs_fsnode = pVnodeData; /** Private data attached per xnu's vnode object */
vnode_params.vnfs_vops = g_VBoxVFSVnodeDirOpsVector;
vnode_params.vnfs_markroot = fIsRoot;
vnode_params.vnfs_marksystem = FALSE;
vnode_params.vnfs_rdev = 0;
vnode_params.vnfs_filesize = 0;
vnode_params.vnfs_cnp = NULL;
vnode_params.vnfs_flags = VNFS_ADDFSREF | VNFS_NOCACHE;
rc = vnode_create(VNCREATE_FLAVOR, sizeof(vnode_params), &vnode_params, &vnode);
if (rc == 0)
*ret = vnode;
return 0;
}
else
{
PDEBUG("Unable to allocate lock");
rc = ENOMEM;
}
lck_attr_free(pVnodeData->pLockAttr);
}
else
{
PDEBUG("Unable to allocate lock attr");
rc = ENOMEM;
}
return rc;
}
void
bsd_init(void)
{
struct uthread *ut;
unsigned int i;
struct vfs_context context;
kern_return_t ret;
struct ucred temp_cred;
struct posix_cred temp_pcred;
#if NFSCLIENT || CONFIG_IMAGEBOOT
boolean_t netboot = FALSE;
#endif
#define bsd_init_kprintf(x...) /* kprintf("bsd_init: " x) */
throttle_init();
printf(copyright);
bsd_init_kprintf("calling kmeminit\n");
kmeminit();
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();
/* Initialize process and pgrp structures. */
bsd_init_kprintf("calling procinit\n");
procinit();
/* Initialize the ttys (MUST be before kminit()/bsd_autoconf()!)*/
tty_init();
kernproc = &proc0; /* implicitly bzero'ed */
/* kernel_task->proc = kernproc; */
set_bsdtask_info(kernel_task,(void *)kernproc);
/* give kernproc a name */
bsd_init_kprintf("calling process_name\n");
process_name("kernel_task", kernproc);
/* allocate proc lock group attribute and group */
bsd_init_kprintf("calling lck_grp_attr_alloc_init\n");
proc_lck_grp_attr= lck_grp_attr_alloc_init();
proc_lck_grp = lck_grp_alloc_init("proc", proc_lck_grp_attr);
#if CONFIG_FINE_LOCK_GROUPS
proc_slock_grp = lck_grp_alloc_init("proc-slock", proc_lck_grp_attr);
proc_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 */
proc_lck_attr = lck_attr_alloc_init();
#if 0
#if __PROC_INTERNAL_DEBUG
lck_attr_setdebug(proc_lck_attr);
#endif
#endif
#if CONFIG_FINE_LOCK_GROUPS
proc_list_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr);
proc_klist_mlock = lck_mtx_alloc_init(proc_mlock_grp, proc_lck_attr);
lck_mtx_init(&kernproc->p_mlock, proc_mlock_grp, proc_lck_attr);
lck_mtx_init(&kernproc->p_fdmlock, proc_fdmlock_grp, proc_lck_attr);
lck_mtx_init(&kernproc->p_ucred_mlock, proc_ucred_mlock_grp, proc_lck_attr);
lck_spin_init(&kernproc->p_slock, proc_slock_grp, proc_lck_attr);
#else
proc_list_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
proc_klist_mlock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
lck_mtx_init(&kernproc->p_mlock, proc_lck_grp, proc_lck_attr);
lck_mtx_init(&kernproc->p_fdmlock, proc_lck_grp, proc_lck_attr);
lck_mtx_init(&kernproc->p_ucred_mlock, proc_lck_grp, proc_lck_attr);
lck_spin_init(&kernproc->p_slock, proc_lck_grp, proc_lck_attr);
#endif
assert(bsd_simul_execs != 0);
execargs_cache_lock = lck_mtx_alloc_init(proc_lck_grp, proc_lck_attr);
execargs_cache_size = bsd_simul_execs;
execargs_free_count = bsd_simul_execs;
execargs_cache = (vm_offset_t *)kalloc(bsd_simul_execs * sizeof(vm_offset_t));
bzero(execargs_cache, bsd_simul_execs * sizeof(vm_offset_t));
if (current_task() != kernel_task)
printf("bsd_init: We have a problem, "
"current task is not kernel task\n");
bsd_init_kprintf("calling get_bsdthread_info\n");
ut = (uthread_t)get_bsdthread_info(current_thread());
#if CONFIG_MACF
/*
* Initialize the MAC Framework
*/
mac_policy_initbsd();
kernproc->p_mac_enforce = 0;
#if defined (__i386__) || defined (__x86_64__)
/*
* We currently only support this on i386/x86_64, as that is the
* only lock code we have instrumented so far.
*/
check_policy_init(policy_check_flags);
#endif
#endif /* MAC */
/* Initialize System Override call */
init_system_override();
/*
* Create process 0.
*/
proc_list_lock();
LIST_INSERT_HEAD(&allproc, kernproc, p_list);
kernproc->p_pgrp = &pgrp0;
LIST_INSERT_HEAD(PGRPHASH(0), &pgrp0, pg_hash);
LIST_INIT(&pgrp0.pg_members);
#ifdef CONFIG_FINE_LOCK_GROUPS
lck_mtx_init(&pgrp0.pg_mlock, proc_mlock_grp, proc_lck_attr);
#else
lck_mtx_init(&pgrp0.pg_mlock, proc_lck_grp, proc_lck_attr);
#endif
/* There is no other bsd thread this point and is safe without pgrp lock */
LIST_INSERT_HEAD(&pgrp0.pg_members, kernproc, p_pglist);
kernproc->p_listflag |= P_LIST_INPGRP;
kernproc->p_pgrpid = 0;
kernproc->p_uniqueid = 0;
pgrp0.pg_session = &session0;
pgrp0.pg_membercnt = 1;
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);
#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();
kernproc->task = kernel_task;
kernproc->p_stat = SRUN;
kernproc->p_flag = P_SYSTEM;
kernproc->p_lflag = 0;
kernproc->p_ladvflag = 0;
#if DEVELOPMENT || DEBUG
if (bootarg_disable_aslr)
kernproc->p_flag |= P_DISABLE_ASLR;
#endif
kernproc->p_nice = NZERO;
kernproc->p_pptr = kernproc;
TAILQ_INIT(&kernproc->p_uthlist);
TAILQ_INSERT_TAIL(&kernproc->p_uthlist, ut, uu_list);
kernproc->sigwait = FALSE;
kernproc->sigwait_thread = THREAD_NULL;
kernproc->exit_thread = THREAD_NULL;
kernproc->p_csflags = CS_VALID;
/*
* Create credential. This also Initializes the audit information.
*/
bsd_init_kprintf("calling bzero\n");
bzero(&temp_cred, sizeof(temp_cred));
bzero(&temp_pcred, sizeof(temp_pcred));
temp_pcred.cr_ngroups = 1;
/* kern_proc, shouldn't call up to DS for group membership */
temp_pcred.cr_flags = CRF_NOMEMBERD;
temp_cred.cr_audit.as_aia_p = audit_default_aia_p;
bsd_init_kprintf("calling kauth_cred_create\n");
/*
* We have to label the temp cred before we create from it to
* properly set cr_ngroups, or the create will fail.
*/
posix_cred_label(&temp_cred, &temp_pcred);
kernproc->p_ucred = kauth_cred_create(&temp_cred);
/* update cred on proc */
PROC_UPDATE_CREDS_ONPROC(kernproc);
/* give the (already exisiting) initial thread a reference on it */
bsd_init_kprintf("calling kauth_cred_ref\n");
kauth_cred_ref(kernproc->p_ucred);
ut->uu_context.vc_ucred = kernproc->p_ucred;
ut->uu_context.vc_thread = current_thread();
TAILQ_INIT(&kernproc->p_aio_activeq);
TAILQ_INIT(&kernproc->p_aio_doneq);
kernproc->p_aio_total_count = 0;
kernproc->p_aio_active_count = 0;
bsd_init_kprintf("calling file_lock_init\n");
file_lock_init();
#if CONFIG_MACF
mac_cred_label_associate_kernel(kernproc->p_ucred);
#endif
/* Create the file descriptor table. */
kernproc->p_fd = &filedesc0;
filedesc0.fd_cmask = cmask;
filedesc0.fd_knlistsize = -1;
filedesc0.fd_knlist = NULL;
filedesc0.fd_knhash = NULL;
filedesc0.fd_knhashmask = 0;
/* 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;
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_STACK] = vm_initial_limit_stack;
limit0.pl_rlimit[RLIMIT_DATA] = vm_initial_limit_data;
limit0.pl_rlimit[RLIMIT_CORE] = vm_initial_limit_core;
limit0.pl_refcnt = 1;
kernproc->p_stats = &pstats0;
kernproc->p_sigacts = &sigacts0;
/*
* Charge root for one process: launchd.
*/
bsd_init_kprintf("calling chgproccnt\n");
(void)chgproccnt(0, 1);
/*
* Allocate a kernel submap for pageable memory
* for temporary copying (execve()).
*/
{
vm_offset_t minimum;
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_MAKE_TAG(VM_KERN_MEMORY_BSD),
&bsd_pageable_map);
if (ret != KERN_SUCCESS)
panic("bsd_init: Failed to allocate bsd pageable map");
}
/*
* Initialize buffers and hash links for buffers
*
* SIDE EFFECT: Starts a thread for bcleanbuf_thread(), so must
* happen after a credential has been associated with
* the kernel task.
*/
bsd_init_kprintf("calling bsd_bufferinit\n");
bsd_bufferinit();
/* Initialize the execve() semaphore */
bsd_init_kprintf("calling semaphore_create\n");
if (ret != KERN_SUCCESS)
panic("bsd_init: Failed to create execve semaphore");
/*
* Initialize the calendar.
*/
bsd_init_kprintf("calling IOKitInitializeTime\n");
IOKitInitializeTime();
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();
#if CONFIG_PROC_UUID_POLICY
/* Initial proc_uuid_policy subsystem */
bsd_init_kprintf("calling proc_uuid_policy_init()\n");
proc_uuid_policy_init();
#endif
#if SOCKETS
/* Initialize per-CPU cache allocator */
mcache_init();
/* Initialize mbuf's. */
bsd_init_kprintf("calling mbinit\n");
mbinit();
net_str_id_init(); /* for mbuf tags */
#endif /* SOCKETS */
/*
* Initializes security event auditing.
* XXX: Should/could this occur later?
*/
#if CONFIG_AUDIT
bsd_init_kprintf("calling audit_init\n");
audit_init();
#endif
/* Initialize kqueues */
bsd_init_kprintf("calling knote_init\n");
knote_init();
/* Initialize for async IO */
bsd_init_kprintf("calling aio_init\n");
aio_init();
/* Initialize pipes */
bsd_init_kprintf("calling pipeinit\n");
pipeinit();
/* Initialize SysV shm subsystem locks; the subsystem proper is
* initialized through a sysctl.
*/
#if SYSV_SHM
bsd_init_kprintf("calling sysv_shm_lock_init\n");
sysv_shm_lock_init();
#endif
#if SYSV_SEM
bsd_init_kprintf("calling sysv_sem_lock_init\n");
sysv_sem_lock_init();
#endif
#if SYSV_MSG
bsd_init_kprintf("sysv_msg_lock_init\n");
sysv_msg_lock_init();
#endif
bsd_init_kprintf("calling pshm_lock_init\n");
pshm_lock_init();
bsd_init_kprintf("calling psem_lock_init\n");
psem_lock_init();
pthread_init();
/* POSIX Shm and Sem */
bsd_init_kprintf("calling pshm_cache_init\n");
pshm_cache_init();
bsd_init_kprintf("calling psem_cache_init\n");
psem_cache_init();
bsd_init_kprintf("calling time_zone_slock_init\n");
time_zone_slock_init();
bsd_init_kprintf("calling select_waitq_init\n");
select_waitq_init();
/*
* Initialize protocols. Block reception of incoming packets
* until everything is ready.
*/
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();
bsd_init_kprintf("calling proto_kpi_init\n");
proto_kpi_init();
#endif /* NETWORKING */
#if SOCKETS
bsd_init_kprintf("calling socketinit\n");
socketinit();
bsd_init_kprintf("calling domaininit\n");
domaininit();
iptap_init();
#if FLOW_DIVERT
flow_divert_init();
#endif /* FLOW_DIVERT */
#endif /* SOCKETS */
kernproc->p_fd->fd_cdir = NULL;
kernproc->p_fd->fd_rdir = NULL;
#if CONFIG_FREEZE
#ifndef CONFIG_MEMORYSTATUS
#error "CONFIG_FREEZE defined without matching CONFIG_MEMORYSTATUS"
#endif
/* Initialise background freezing */
bsd_init_kprintf("calling memorystatus_freeze_init\n");
memorystatus_freeze_init();
#endif
#if CONFIG_MEMORYSTATUS
/* Initialize kernel memory status notifications */
bsd_init_kprintf("calling memorystatus_init\n");
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();
#endif
bsd_init_kprintf("calling bsd_autoconf\n");
bsd_autoconf();
#if CONFIG_DTRACE
dtrace_postinit();
#endif
/*
* We attach the loopback interface *way* down here to ensure
* it happens after autoconf(), otherwise it becomes the
* "primary" interface.
*/
#include <loop.h>
#if NLOOP > 0
bsd_init_kprintf("calling loopattach\n");
loopattach(); /* XXX */
#endif
#if NGIF
/* Initialize gif interface (after lo0) */
gif_init();
#endif
#if PFLOG
/* Initialize packet filter log interface */
pfloginit();
#endif /* PFLOG */
#if NETHER > 0
/* Register the built-in dlil ethernet interface family */
bsd_init_kprintf("calling ether_family_init\n");
ether_family_init();
#endif /* ETHER */
#if NETWORKING
/* Call any kext code that wants to run just after network init */
bsd_init_kprintf("calling net_init_run\n");
net_init_run();
#if CONTENT_FILTER
cfil_init();
#endif
#if PACKET_MANGLER
pkt_mnglr_init();
#endif
#if NECP
/* Initialize Network Extension Control Policies */
necp_init();
#endif
netagent_init();
/* register user tunnel kernel control handler */
utun_register_control();
#if IPSEC
ipsec_register_control();
#endif /* IPSEC */
netsrc_init();
nstat_init();
tcp_cc_init();
#if MPTCP
mptcp_control_register();
#endif /* MPTCP */
#endif /* NETWORKING */
bsd_init_kprintf("calling vnode_pager_bootstrap\n");
vnode_pager_bootstrap();
bsd_init_kprintf("calling inittodr\n");
inittodr(0);
/* Mount the root file system. */
while( TRUE) {
int err;
bsd_init_kprintf("calling setconf\n");
setconf();
#if NFSCLIENT
netboot = (mountroot == netboot_mountroot);
#endif
bsd_init_kprintf("vfs_mountroot\n");
if (0 == (err = vfs_mountroot()))
break;
rootdevice[0] = '\0';
#if NFSCLIENT
if (netboot) {
PE_display_icon( 0, "noroot"); /* XXX a netboot-specific icon would be nicer */
vc_progress_set(FALSE, 0);
for (i=1; 1; i*=2) {
printf("bsd_init: failed to mount network root, error %d, %s\n",
err, PE_boot_args());
printf("We are hanging here...\n");
IOSleep(i*60*1000);
}
/*NOTREACHED*/
}
#endif
printf("cannot mount root, errno = %d\n", err);
boothowto |= RB_ASKNAME;
}
IOSecureBSDRoot(rootdevice);
context.vc_thread = current_thread();
context.vc_ucred = kernproc->p_ucred;
mountlist.tqh_first->mnt_flag |= MNT_ROOTFS;
bsd_init_kprintf("calling VFS_ROOT\n");
/* Get the vnode for '/'. Set fdp->fd_fd.fd_cdir to reference it. */
if (VFS_ROOT(mountlist.tqh_first, &rootvnode, &context))
panic("bsd_init: cannot find root vnode: %s", PE_boot_args());
rootvnode->v_flag |= VROOT;
(void)vnode_ref(rootvnode);
(void)vnode_put(rootvnode);
filedesc0.fd_cdir = rootvnode;
#if NFSCLIENT
if (netboot) {
int err;
netboot = TRUE;
/* post mount setup */
if ((err = netboot_setup()) != 0) {
PE_display_icon( 0, "noroot"); /* XXX a netboot-specific icon would be nicer */
vc_progress_set(FALSE, 0);
for (i=1; 1; i*=2) {
printf("bsd_init: NetBoot could not find root, error %d: %s\n",
err, PE_boot_args());
printf("We are hanging here...\n");
IOSleep(i*60*1000);
}
/*NOTREACHED*/
}
}
#endif
#if CONFIG_IMAGEBOOT
/*
* See if a system disk image is present. If so, mount it and
* switch the root vnode to point to it
*/
if (netboot == FALSE && imageboot_needed()) {
/*
* An image was found. No turning back: we're booted
* with a kernel from the disk image.
*/
imageboot_setup();
}
#endif /* CONFIG_IMAGEBOOT */
/* set initial time; all other resource data is already zero'ed */
microtime_with_abstime(&kernproc->p_start, &kernproc->p_stats->ps_start);
#if DEVFS
{
char mounthere[] = "/dev"; /* !const because of internal casting */
bsd_init_kprintf("calling devfs_kernel_mount\n");
devfs_kernel_mount(mounthere);
}
#endif /* DEVFS */
/* Initialize signal state for process 0. */
bsd_init_kprintf("calling siginit\n");
siginit(kernproc);
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");
/* invoke post-root-mount hook */
if (mountroot_post_hook != NULL)
mountroot_post_hook();
#if 0 /* not yet */
consider_zone_gc(FALSE);
#endif
bsd_init_kprintf("done\n");
}