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1da177e4 LT |
1 | #ifndef _LINUX__INIT_TASK_H |
2 | #define _LINUX__INIT_TASK_H | |
3 | ||
ab2af1f5 | 4 | #include <linux/rcupdate.h> |
de30a2b3 | 5 | #include <linux/irqflags.h> |
4865ecf1 | 6 | #include <linux/utsname.h> |
fbb9ce95 | 7 | #include <linux/lockdep.h> |
73ea4130 | 8 | #include <linux/ipc.h> |
9a575a92 | 9 | #include <linux/pid_namespace.h> |
acce292c | 10 | #include <linux/user_namespace.h> |
3898b1b4 | 11 | #include <linux/securebits.h> |
772698f6 | 12 | #include <net/net_namespace.h> |
1da177e4 | 13 | |
f52111b1 | 14 | extern struct files_struct init_files; |
1da177e4 LT |
15 | |
16 | #define INIT_KIOCTX(name, which_mm) \ | |
17 | { \ | |
18 | .users = ATOMIC_INIT(1), \ | |
19 | .dead = 0, \ | |
20 | .mm = &which_mm, \ | |
21 | .user_id = 0, \ | |
22 | .next = NULL, \ | |
23 | .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \ | |
e4d91918 | 24 | .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \ |
1da177e4 LT |
25 | .reqs_active = 0U, \ |
26 | .max_reqs = ~0U, \ | |
27 | } | |
28 | ||
29 | #define INIT_MM(name) \ | |
30 | { \ | |
31 | .mm_rb = RB_ROOT, \ | |
32 | .pgd = swapper_pg_dir, \ | |
33 | .mm_users = ATOMIC_INIT(2), \ | |
34 | .mm_count = ATOMIC_INIT(1), \ | |
35 | .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \ | |
e4d91918 | 36 | .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \ |
1da177e4 LT |
37 | .mmlist = LIST_HEAD_INIT(name.mmlist), \ |
38 | .cpu_vm_mask = CPU_MASK_ALL, \ | |
1da177e4 LT |
39 | } |
40 | ||
1ec320af CLG |
41 | #define INIT_SIGNALS(sig) { \ |
42 | .count = ATOMIC_INIT(1), \ | |
1da177e4 | 43 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
1ec320af | 44 | .shared_pending = { \ |
1da177e4 | 45 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
1ec320af | 46 | .signal = {{0}}}, \ |
1da177e4 LT |
47 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ |
48 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ | |
49 | .rlim = INIT_RLIMITS, \ | |
50 | } | |
51 | ||
ab516013 SH |
52 | extern struct nsproxy init_nsproxy; |
53 | #define INIT_NSPROXY(nsproxy) { \ | |
9a575a92 | 54 | .pid_ns = &init_pid_ns, \ |
ab516013 | 55 | .count = ATOMIC_INIT(1), \ |
4865ecf1 | 56 | .uts_ns = &init_uts_ns, \ |
6b3286ed | 57 | .mnt_ns = NULL, \ |
4fabcd71 | 58 | INIT_NET_NS(net_ns) \ |
73ea4130 | 59 | INIT_IPC_NS(ipc_ns) \ |
acce292c | 60 | .user_ns = &init_user_ns, \ |
ab516013 SH |
61 | } |
62 | ||
1da177e4 LT |
63 | #define INIT_SIGHAND(sighand) { \ |
64 | .count = ATOMIC_INIT(1), \ | |
65 | .action = { { { .sa_handler = NULL, } }, }, \ | |
e4d91918 | 66 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
b8fceee1 | 67 | .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ |
1da177e4 LT |
68 | } |
69 | ||
70 | extern struct group_info init_groups; | |
71 | ||
820e45db SB |
72 | #define INIT_STRUCT_PID { \ |
73 | .count = ATOMIC_INIT(1), \ | |
820e45db SB |
74 | .tasks = { \ |
75 | { .first = &init_task.pids[PIDTYPE_PID].node }, \ | |
76 | { .first = &init_task.pids[PIDTYPE_PGID].node }, \ | |
77 | { .first = &init_task.pids[PIDTYPE_SID].node }, \ | |
78 | }, \ | |
79 | .rcu = RCU_HEAD_INIT, \ | |
4c3f2ead SB |
80 | .level = 0, \ |
81 | .numbers = { { \ | |
82 | .nr = 0, \ | |
83 | .ns = &init_pid_ns, \ | |
84 | .pid_chain = { .next = NULL, .pprev = NULL }, \ | |
85 | }, } \ | |
820e45db SB |
86 | } |
87 | ||
88 | #define INIT_PID_LINK(type) \ | |
89 | { \ | |
90 | .node = { \ | |
91 | .next = NULL, \ | |
92 | .pprev = &init_struct_pid.tasks[type].first, \ | |
93 | }, \ | |
94 | .pid = &init_struct_pid, \ | |
95 | } | |
96 | ||
bfef93a5 AV |
97 | #ifdef CONFIG_AUDITSYSCALL |
98 | #define INIT_IDS \ | |
4746ec5b EP |
99 | .loginuid = -1, \ |
100 | .sessionid = -1, | |
bfef93a5 AV |
101 | #else |
102 | #define INIT_IDS | |
103 | #endif | |
3b7391de SH |
104 | |
105 | #ifdef CONFIG_SECURITY_FILE_CAPABILITIES | |
106 | /* | |
107 | * Because of the reduced scope of CAP_SETPCAP when filesystem | |
108 | * capabilities are in effect, it is safe to allow CAP_SETPCAP to | |
109 | * be available in the default configuration. | |
110 | */ | |
111 | # define CAP_INIT_BSET CAP_FULL_SET | |
112 | #else | |
113 | # define CAP_INIT_BSET CAP_INIT_EFF_SET | |
114 | #endif | |
115 | ||
1da177e4 LT |
116 | /* |
117 | * INIT_TASK is used to set up the first task table, touch at | |
118 | * your own risk!. Base=0, limit=0x1fffff (=2MB) | |
119 | */ | |
120 | #define INIT_TASK(tsk) \ | |
121 | { \ | |
122 | .state = 0, \ | |
f7e4217b | 123 | .stack = &init_thread_info, \ |
1da177e4 | 124 | .usage = ATOMIC_INIT(2), \ |
7b34e428 | 125 | .flags = PF_KTHREAD, \ |
1da177e4 LT |
126 | .lock_depth = -1, \ |
127 | .prio = MAX_PRIO-20, \ | |
128 | .static_prio = MAX_PRIO-20, \ | |
b29739f9 | 129 | .normal_prio = MAX_PRIO-20, \ |
1da177e4 LT |
130 | .policy = SCHED_NORMAL, \ |
131 | .cpus_allowed = CPU_MASK_ALL, \ | |
132 | .mm = NULL, \ | |
133 | .active_mm = &init_mm, \ | |
4a55bd5e PZ |
134 | .se = { \ |
135 | .group_node = LIST_HEAD_INIT(tsk.se.group_node), \ | |
136 | }, \ | |
fa717060 PZ |
137 | .rt = { \ |
138 | .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \ | |
6f505b16 PZ |
139 | .time_slice = HZ, \ |
140 | .nr_cpus_allowed = NR_CPUS, \ | |
141 | }, \ | |
1da177e4 | 142 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ |
f470021a RM |
143 | .ptraced = LIST_HEAD_INIT(tsk.ptraced), \ |
144 | .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \ | |
1da177e4 LT |
145 | .real_parent = &tsk, \ |
146 | .parent = &tsk, \ | |
147 | .children = LIST_HEAD_INIT(tsk.children), \ | |
148 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ | |
149 | .group_leader = &tsk, \ | |
150 | .group_info = &init_groups, \ | |
151 | .cap_effective = CAP_INIT_EFF_SET, \ | |
152 | .cap_inheritable = CAP_INIT_INH_SET, \ | |
153 | .cap_permitted = CAP_FULL_SET, \ | |
3b7391de | 154 | .cap_bset = CAP_INIT_BSET, \ |
3898b1b4 | 155 | .securebits = SECUREBITS_DEFAULT, \ |
1da177e4 LT |
156 | .user = INIT_USER, \ |
157 | .comm = "swapper", \ | |
158 | .thread = INIT_THREAD, \ | |
159 | .fs = &init_fs, \ | |
160 | .files = &init_files, \ | |
161 | .signal = &init_signals, \ | |
162 | .sighand = &init_sighand, \ | |
ab516013 | 163 | .nsproxy = &init_nsproxy, \ |
1da177e4 LT |
164 | .pending = { \ |
165 | .list = LIST_HEAD_INIT(tsk.pending.list), \ | |
166 | .signal = {{0}}}, \ | |
167 | .blocked = {{0}}, \ | |
e4d91918 | 168 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
1da177e4 LT |
169 | .journal_info = NULL, \ |
170 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ | |
22e2c507 | 171 | .fs_excl = ATOMIC_INIT(0), \ |
b32e41bb | 172 | .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ |
6976675d | 173 | .timer_slack_ns = 50000, /* 50 usec default slack */ \ |
820e45db SB |
174 | .pids = { \ |
175 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ | |
176 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ | |
177 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ | |
178 | }, \ | |
3e26c149 | 179 | .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ |
bfef93a5 | 180 | INIT_IDS \ |
de30a2b3 | 181 | INIT_TRACE_IRQFLAGS \ |
fbb9ce95 | 182 | INIT_LOCKDEP \ |
1da177e4 LT |
183 | } |
184 | ||
185 | ||
186 | #define INIT_CPU_TIMERS(cpu_timers) \ | |
187 | { \ | |
188 | LIST_HEAD_INIT(cpu_timers[0]), \ | |
189 | LIST_HEAD_INIT(cpu_timers[1]), \ | |
190 | LIST_HEAD_INIT(cpu_timers[2]), \ | |
191 | } | |
192 | ||
193 | ||
194 | #endif |