xnu-3247.1.106.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 b344c7a9de873f9bc3c50fb7ce813e5976df4ceb..d9b90aff2a4991dd1dcecc0310cadf3b853f8ac3 100644 (file)
--- 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@
  * 
@@ -157,13 +157,15 @@
 #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/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 <kern/assert.h>               /* for assert() */
 #include <sys/kern_overrides.h>                /* for init_system_override() */
 
@@ -193,6 +195,7 @@
 #include <machine/pal_routines.h>
 #include <console/video_console.h>
 
+
 void * get_user_regs(thread_t);                /* XXX kludge for <machine/thread.h> */
 void IOKitInitializeTime(void);                /* XXX */
 void IOSleep(unsigned int);            /* XXX */
@@ -243,6 +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);
@@ -271,6 +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.
  */
@@ -288,12 +300,11 @@ void bsd_utaskbootstrap(void);
 static void parse_bsd_args(void);
 extern task_t bsd_init_task;
 extern boolean_t init_task_died;
-extern char    init_task_failure_data[];
 #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);
@@ -340,11 +351,8 @@ 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 */
@@ -500,7 +508,7 @@ bsd_init(void)
 
        /* Initialize System Override call */
        init_system_override();
-
+       
        /*
         * Create process 0.
         */
@@ -534,10 +542,6 @@ bsd_init(void)
        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;
@@ -644,7 +648,7 @@ 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");
@@ -750,8 +754,8 @@ 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
@@ -857,7 +861,9 @@ bsd_init(void)
        /* Initialize Network Extension Control Policies */
        necp_init();
 #endif
-       
+
+       netagent_init();
+
        /* register user tunnel kernel control handler */
        utun_register_control();
 #if IPSEC
@@ -866,6 +872,9 @@ bsd_init(void)
        netsrc_init();
        nstat_init();
        tcp_cc_init();
+#if MPTCP
+       mptcp_control_register();
+#endif /* MPTCP */
 #endif /* NETWORKING */
 
        bsd_init_kprintf("calling vnode_pager_bootstrap\n");
@@ -966,7 +975,7 @@ bsd_init(void)
            devfs_kernel_mount(mounthere);
        }
 #endif /* DEVFS */
-       
+
        /* Initialize signal state for process 0. */
        bsd_init_kprintf("calling siginit\n");
        siginit(kernproc);
@@ -990,6 +999,7 @@ bsd_init(void)
        consider_zone_gc(FALSE);
 #endif
 
+
        bsd_init_kprintf("done\n");
 }
 
@@ -1015,7 +1025,6 @@ bsdinit_task(void)
 
        bsd_init_task = get_threadtask(thread);
        init_task_died = FALSE;
-       init_task_failure_data[0] = 0;
 
 #if CONFIG_MACF
        mac_cred_label_associate_user(p->p_ucred);
@@ -1103,7 +1112,7 @@ 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
@@ -1121,6 +1130,15 @@ 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)))
@@ -1150,6 +1168,21 @@ parse_bsd_args(void)
        if (PE_parse_boot_argn("-novfscache", namep, sizeof(namep))) {
                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