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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#ifndef __LAUNCHD_RUNTIME_H__
21#define __LAUNCHD_RUNTIME_H__
22
23#include <mach/mach.h>
24#include <sys/types.h>
25#include <bsm/libbsm.h>
26#include <stdbool.h>
27#include <syslog.h>
28
29#include "launchd_runtime_kill.h"
30
31struct ldcred {
32 uid_t euid;
33 uid_t uid;
34 gid_t egid;
35 gid_t gid;
36 pid_t pid;
37 au_asid_t asid;
38};
39
40/*
41 * Use launchd_assumes() when we can recover, even if it means we leak or limp along.
42 *
43 * Use launchd_assert() for core initialization routines.
44 */
45#define launchd_assumes(e) \
46 (__builtin_expect(!(e), 0) ? _log_launchd_bug(__rcs_file_version__, __FILE__, __LINE__, #e), false : true)
47
48#define launchd_blame(e, b) \
49 (__builtin_expect(!(e), 0) ? syslog(LOG_DEBUG, "Encountered bug: %d", b), false : true)
50
51#define launchd_assert(e) if (__builtin_constant_p(e)) { char __compile_time_assert__[e ? 1 : -1] __attribute__((unused)); } else if (!launchd_assumes(e)) { abort(); }
52
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53#define likely(x) __builtin_expect((bool)(x), true)
54#define unlikely(x) __builtin_expect((bool)(x), false)
55
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56void _log_launchd_bug(const char *rcs_rev, const char *path, unsigned int line, const char *test);
57
58typedef void (*kq_callback)(void *, struct kevent *);
59typedef boolean_t (*mig_callback)(mach_msg_header_t *, mach_msg_header_t *);
60typedef void (*timeout_callback)(void);
61
fe044cc9 62mach_port_t runtime_get_kernel_port(void);
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63
64void runtime_add_ref(void);
65void runtime_del_ref(void);
66
67void launchd_runtime_init(void);
68void launchd_runtime_init2(void);
69void launchd_runtime(void) __attribute__((noreturn));
70
71int runtime_close(int fd);
72int runtime_fsync(int fd);
73
74#define RUNTIME_ADVISABLE_IDLE_TIMEOUT 30
75
76void runtime_set_timeout(timeout_callback to_cb, unsigned int sec);
77kern_return_t runtime_add_mport(mach_port_t name, mig_callback demux, mach_msg_size_t msg_size);
78kern_return_t runtime_remove_mport(mach_port_t name);
79bool runtime_get_caller_creds(struct ldcred *ldc);
80
81const char *signal_to_C_name(unsigned int sig);
82const char *reboot_flags_to_C_names(unsigned int flags);
83const char *proc_flags_to_C_names(unsigned int flags);
84
85
86int kevent_bulk_mod(struct kevent *kev, size_t kev_cnt);
87int kevent_mod(uintptr_t ident, short filter, u_short flags, u_int fflags, intptr_t data, void *udata);
88
89pid_t runtime_fork(mach_port_t bsport);
90
91kern_return_t runtime_log_forward(uid_t forward_uid, gid_t forward_gid, vm_offset_t inval, mach_msg_type_number_t invalCnt);
92kern_return_t runtime_log_drain(mach_port_t srp, vm_offset_t *outval, mach_msg_type_number_t *outvalCnt);
93
94#define LOG_APPLEONLY 0x4141504c /* AAPL in hex */
95
96struct runtime_syslog_attr {
97 const char *from_name;
98 const char *about_name;
99 const char *session_name;
100 int priority;
101 uid_t from_uid;
102 pid_t from_pid;
103 pid_t about_pid;
104};
105
106int runtime_setlogmask(int maskpri);
107void runtime_closelog(void);
108void runtime_syslog(int pri, const char *message, ...) __attribute__((format(printf, 2, 3)));
109void runtime_vsyslog(struct runtime_syslog_attr *attr, const char *message, va_list args) __attribute__((format(printf, 2, 0)));
110
111
112kern_return_t launchd_set_bport(mach_port_t name);
113kern_return_t launchd_get_bport(mach_port_t *name);
114kern_return_t launchd_mport_notify_req(mach_port_t name, mach_msg_id_t which);
115kern_return_t launchd_mport_notify_cancel(mach_port_t name, mach_msg_id_t which);
116kern_return_t launchd_mport_create_recv(mach_port_t *name);
117kern_return_t launchd_mport_deallocate(mach_port_t name);
118kern_return_t launchd_mport_make_send(mach_port_t name);
119kern_return_t launchd_mport_close_recv(mach_port_t name);
120
121#endif