src/runtime.h

   1 /*
   2  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_APACHE_LICENSE_HEADER_START@
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  * @APPLE_APACHE_LICENSE_HEADER_END@
  19  */
  20
  21 #ifndef __LAUNCHD_RUNTIME_H__
  22 #define __LAUNCHD_RUNTIME_H__
  23
  24 #include <xpc/xpc.h>
  25 #include <mach/mach.h>
  26 #include <sys/types.h>
  27 #include <bsm/libbsm.h>
  28 #include <stdbool.h>
  29 #include <stdint.h>
  30 #include <float.h>
  31 #include <syslog.h>
  32
  33 #include "kill2.h"
  34 #include "ktrace.h"
  35 #include "log.h"
  36
  37 #define likely(x)       __builtin_expect((bool)(x), true)
  38 #define unlikely(x)     __builtin_expect((bool)(x), false)
  39
  40 struct ldcred {
  41         uid_t euid;
  42         uid_t uid;
  43         gid_t egid;
  44         gid_t gid;
  45         pid_t pid;
  46         au_asid_t asid;
  47         mach_port_t asport;
  48 };
  49
  50 typedef void (*kq_callback)(void *, struct kevent *);
  51 typedef boolean_t (*mig_callback)(mach_msg_header_t *, mach_msg_header_t *);
  52 typedef void (*timeout_callback)(void);
  53
  54 extern bool launchd_verbose_boot;
  55 /* Configuration knobs set in do_file_init(). */
  56 extern bool launchd_shutdown_debugging;
  57 extern bool launchd_use_gmalloc;
  58 extern bool launchd_malloc_log_stacks;
  59 extern bool launchd_log_shutdown;
  60 extern bool launchd_log_debug;
  61 extern bool launchd_log_perf;
  62 extern bool launchd_trap_sigkill_bugs;
  63 extern bool launchd_osinstaller;
  64 extern bool launchd_allow_global_dyld_envvars;
  65
  66 extern bool launchd_runtime_busy_time;
  67 extern mach_port_t inherited_bootstrap_port;
  68 extern size_t runtime_busy_cnt;
  69 extern int32_t launchd_sync_frequency;
  70 extern pid_t launchd_wsp;
  71
  72 mach_port_t runtime_get_kernel_port(void);
  73 extern boolean_t launchd_internal_demux(mach_msg_header_t *Request, mach_msg_header_t *Reply);
  74
  75 void runtime_add_ref(void);
  76 void runtime_del_ref(void);
  77 void runtime_add_weak_ref(void);
  78 void runtime_del_weak_ref(void);
  79 void runtime_install_timer(void);
  80 void runtime_remove_timer(void);
  81
  82 void launchd_runtime_init(void);
  83 void launchd_runtime_init2(void);
  84 void launchd_runtime(void) __attribute__((noreturn));
  85
  86 void launchd_log_vm_stats(void);
  87
  88 int runtime_close(int fd);
  89 int runtime_fsync(int fd);
  90
  91 #define RUNTIME_ADVISABLE_IDLE_TIMEOUT 30
  92
  93 void runtime_set_timeout(timeout_callback to_cb, unsigned int sec);
  94 kern_return_t runtime_add_mport(mach_port_t name, mig_callback demux);
  95 kern_return_t runtime_remove_mport(mach_port_t name);
  96 void runtime_record_caller_creds(audit_token_t *token);
  97 struct ldcred *runtime_get_caller_creds(void);
  98
  99 const char *signal_to_C_name(unsigned int sig);
 100 const char *reboot_flags_to_C_names(unsigned int flags);
 101
 102 int kevent_bulk_mod(struct kevent *kev, size_t kev_cnt);
 103 int kevent_mod(uintptr_t ident, short filter, u_short flags, u_int fflags, intptr_t data, void *udata);
 104 void log_kevent_struct(int level, struct kevent *kev_base, int indx);
 105
 106 pid_t runtime_fork(mach_port_t bsport);
 107
 108 mach_msg_return_t launchd_exc_runtime_once(mach_port_t port, mach_msg_size_t rcv_msg_size, mach_msg_size_t send_msg_size, mig_reply_error_t *bufRequest, mig_reply_error_t *bufReply, mach_msg_timeout_t to);
 109
 110 int64_t runtime_get_wall_time(void) __attribute__((warn_unused_result));
 111 uint64_t runtime_get_opaque_time(void) __attribute__((warn_unused_result));
 112 uint64_t runtime_get_opaque_time_of_event(void) __attribute__((pure, warn_unused_result));
 113 uint64_t runtime_opaque_time_to_nano(uint64_t o) __attribute__((const, warn_unused_result));
 114 uint64_t runtime_get_nanoseconds_since(uint64_t o) __attribute__((pure, warn_unused_result));
 115
 116 kern_return_t launchd_set_bport(mach_port_t name);
 117 kern_return_t launchd_get_bport(mach_port_t *name);
 118 kern_return_t launchd_mport_notify_req(mach_port_t name, mach_msg_id_t which);
 119 kern_return_t launchd_mport_notify_cancel(mach_port_t name, mach_msg_id_t which);
 120 kern_return_t launchd_mport_create_recv(mach_port_t *name);
 121 kern_return_t launchd_mport_deallocate(mach_port_t name);
 122 kern_return_t launchd_mport_make_send(mach_port_t name);
 123 kern_return_t launchd_mport_copy_send(mach_port_t name);
 124 kern_return_t launchd_mport_make_send_once(mach_port_t name, mach_port_t *so);
 125 kern_return_t launchd_mport_close_recv(mach_port_t name);
 126
 127 #endif /* __LAUNCHD_RUNTIME_H__ */