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1da177e4 LT |
1 | #ifndef _LINUX__INIT_TASK_H |
2 | #define _LINUX__INIT_TASK_H | |
3 | ||
9f3acc31 | 4 | #include <linux/fdtable.h> |
ab2af1f5 | 5 | #include <linux/rcupdate.h> |
de30a2b3 | 6 | #include <linux/irqflags.h> |
4865ecf1 | 7 | #include <linux/utsname.h> |
fbb9ce95 | 8 | #include <linux/lockdep.h> |
73ea4130 | 9 | #include <linux/ipc.h> |
9a575a92 | 10 | #include <linux/pid_namespace.h> |
acce292c | 11 | #include <linux/user_namespace.h> |
3898b1b4 | 12 | #include <linux/securebits.h> |
772698f6 | 13 | #include <net/net_namespace.h> |
1da177e4 | 14 | |
badf1662 DS |
15 | #define INIT_FDTABLE \ |
16 | { \ | |
1da177e4 | 17 | .max_fds = NR_OPEN_DEFAULT, \ |
1da177e4 | 18 | .fd = &init_files.fd_array[0], \ |
0c9e63fd ED |
19 | .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \ |
20 | .open_fds = (fd_set *)&init_files.open_fds_init, \ | |
ab2af1f5 | 21 | .rcu = RCU_HEAD_INIT, \ |
ab2af1f5 | 22 | .next = NULL, \ |
badf1662 DS |
23 | } |
24 | ||
25 | #define INIT_FILES \ | |
26 | { \ | |
27 | .count = ATOMIC_INIT(1), \ | |
ab2af1f5 | 28 | .fdt = &init_files.fdtab, \ |
badf1662 | 29 | .fdtab = INIT_FDTABLE, \ |
e4d91918 | 30 | .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \ |
0c9e63fd | 31 | .next_fd = 0, \ |
1da177e4 LT |
32 | .close_on_exec_init = { { 0, } }, \ |
33 | .open_fds_init = { { 0, } }, \ | |
34 | .fd_array = { NULL, } \ | |
35 | } | |
36 | ||
37 | #define INIT_KIOCTX(name, which_mm) \ | |
38 | { \ | |
39 | .users = ATOMIC_INIT(1), \ | |
40 | .dead = 0, \ | |
41 | .mm = &which_mm, \ | |
42 | .user_id = 0, \ | |
43 | .next = NULL, \ | |
44 | .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \ | |
e4d91918 | 45 | .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \ |
1da177e4 LT |
46 | .reqs_active = 0U, \ |
47 | .max_reqs = ~0U, \ | |
48 | } | |
49 | ||
50 | #define INIT_MM(name) \ | |
51 | { \ | |
52 | .mm_rb = RB_ROOT, \ | |
53 | .pgd = swapper_pg_dir, \ | |
54 | .mm_users = ATOMIC_INIT(2), \ | |
55 | .mm_count = ATOMIC_INIT(1), \ | |
56 | .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \ | |
e4d91918 | 57 | .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \ |
1da177e4 LT |
58 | .mmlist = LIST_HEAD_INIT(name.mmlist), \ |
59 | .cpu_vm_mask = CPU_MASK_ALL, \ | |
1da177e4 LT |
60 | } |
61 | ||
1ec320af CLG |
62 | #define INIT_SIGNALS(sig) { \ |
63 | .count = ATOMIC_INIT(1), \ | |
1da177e4 | 64 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
1ec320af | 65 | .shared_pending = { \ |
1da177e4 | 66 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
1ec320af | 67 | .signal = {{0}}}, \ |
1da177e4 LT |
68 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ |
69 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ | |
70 | .rlim = INIT_RLIMITS, \ | |
71 | } | |
72 | ||
ab516013 SH |
73 | extern struct nsproxy init_nsproxy; |
74 | #define INIT_NSPROXY(nsproxy) { \ | |
9a575a92 | 75 | .pid_ns = &init_pid_ns, \ |
ab516013 | 76 | .count = ATOMIC_INIT(1), \ |
4865ecf1 | 77 | .uts_ns = &init_uts_ns, \ |
6b3286ed | 78 | .mnt_ns = NULL, \ |
4fabcd71 | 79 | INIT_NET_NS(net_ns) \ |
73ea4130 | 80 | INIT_IPC_NS(ipc_ns) \ |
acce292c | 81 | .user_ns = &init_user_ns, \ |
ab516013 SH |
82 | } |
83 | ||
1da177e4 LT |
84 | #define INIT_SIGHAND(sighand) { \ |
85 | .count = ATOMIC_INIT(1), \ | |
86 | .action = { { { .sa_handler = NULL, } }, }, \ | |
e4d91918 | 87 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
b8fceee1 | 88 | .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ |
1da177e4 LT |
89 | } |
90 | ||
91 | extern struct group_info init_groups; | |
92 | ||
820e45db SB |
93 | #define INIT_STRUCT_PID { \ |
94 | .count = ATOMIC_INIT(1), \ | |
820e45db SB |
95 | .tasks = { \ |
96 | { .first = &init_task.pids[PIDTYPE_PID].node }, \ | |
97 | { .first = &init_task.pids[PIDTYPE_PGID].node }, \ | |
98 | { .first = &init_task.pids[PIDTYPE_SID].node }, \ | |
99 | }, \ | |
100 | .rcu = RCU_HEAD_INIT, \ | |
4c3f2ead SB |
101 | .level = 0, \ |
102 | .numbers = { { \ | |
103 | .nr = 0, \ | |
104 | .ns = &init_pid_ns, \ | |
105 | .pid_chain = { .next = NULL, .pprev = NULL }, \ | |
106 | }, } \ | |
820e45db SB |
107 | } |
108 | ||
109 | #define INIT_PID_LINK(type) \ | |
110 | { \ | |
111 | .node = { \ | |
112 | .next = NULL, \ | |
113 | .pprev = &init_struct_pid.tasks[type].first, \ | |
114 | }, \ | |
115 | .pid = &init_struct_pid, \ | |
116 | } | |
117 | ||
bfef93a5 AV |
118 | #ifdef CONFIG_AUDITSYSCALL |
119 | #define INIT_IDS \ | |
4746ec5b EP |
120 | .loginuid = -1, \ |
121 | .sessionid = -1, | |
bfef93a5 AV |
122 | #else |
123 | #define INIT_IDS | |
124 | #endif | |
3b7391de SH |
125 | |
126 | #ifdef CONFIG_SECURITY_FILE_CAPABILITIES | |
127 | /* | |
128 | * Because of the reduced scope of CAP_SETPCAP when filesystem | |
129 | * capabilities are in effect, it is safe to allow CAP_SETPCAP to | |
130 | * be available in the default configuration. | |
131 | */ | |
132 | # define CAP_INIT_BSET CAP_FULL_SET | |
133 | #else | |
134 | # define CAP_INIT_BSET CAP_INIT_EFF_SET | |
135 | #endif | |
136 | ||
1da177e4 LT |
137 | /* |
138 | * INIT_TASK is used to set up the first task table, touch at | |
139 | * your own risk!. Base=0, limit=0x1fffff (=2MB) | |
140 | */ | |
141 | #define INIT_TASK(tsk) \ | |
142 | { \ | |
143 | .state = 0, \ | |
f7e4217b | 144 | .stack = &init_thread_info, \ |
1da177e4 LT |
145 | .usage = ATOMIC_INIT(2), \ |
146 | .flags = 0, \ | |
147 | .lock_depth = -1, \ | |
148 | .prio = MAX_PRIO-20, \ | |
149 | .static_prio = MAX_PRIO-20, \ | |
b29739f9 | 150 | .normal_prio = MAX_PRIO-20, \ |
1da177e4 LT |
151 | .policy = SCHED_NORMAL, \ |
152 | .cpus_allowed = CPU_MASK_ALL, \ | |
153 | .mm = NULL, \ | |
154 | .active_mm = &init_mm, \ | |
4a55bd5e PZ |
155 | .se = { \ |
156 | .group_node = LIST_HEAD_INIT(tsk.se.group_node), \ | |
157 | }, \ | |
fa717060 PZ |
158 | .rt = { \ |
159 | .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \ | |
6f505b16 PZ |
160 | .time_slice = HZ, \ |
161 | .nr_cpus_allowed = NR_CPUS, \ | |
162 | }, \ | |
1da177e4 LT |
163 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ |
164 | .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \ | |
165 | .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \ | |
166 | .real_parent = &tsk, \ | |
167 | .parent = &tsk, \ | |
168 | .children = LIST_HEAD_INIT(tsk.children), \ | |
169 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ | |
170 | .group_leader = &tsk, \ | |
171 | .group_info = &init_groups, \ | |
172 | .cap_effective = CAP_INIT_EFF_SET, \ | |
173 | .cap_inheritable = CAP_INIT_INH_SET, \ | |
174 | .cap_permitted = CAP_FULL_SET, \ | |
3b7391de | 175 | .cap_bset = CAP_INIT_BSET, \ |
3898b1b4 | 176 | .securebits = SECUREBITS_DEFAULT, \ |
1da177e4 LT |
177 | .user = INIT_USER, \ |
178 | .comm = "swapper", \ | |
179 | .thread = INIT_THREAD, \ | |
180 | .fs = &init_fs, \ | |
181 | .files = &init_files, \ | |
182 | .signal = &init_signals, \ | |
183 | .sighand = &init_sighand, \ | |
ab516013 | 184 | .nsproxy = &init_nsproxy, \ |
1da177e4 LT |
185 | .pending = { \ |
186 | .list = LIST_HEAD_INIT(tsk.pending.list), \ | |
187 | .signal = {{0}}}, \ | |
188 | .blocked = {{0}}, \ | |
e4d91918 | 189 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
1da177e4 LT |
190 | .journal_info = NULL, \ |
191 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ | |
22e2c507 | 192 | .fs_excl = ATOMIC_INIT(0), \ |
b32e41bb | 193 | .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ |
820e45db SB |
194 | .pids = { \ |
195 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ | |
196 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ | |
197 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ | |
198 | }, \ | |
3e26c149 | 199 | .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ |
bfef93a5 | 200 | INIT_IDS \ |
de30a2b3 | 201 | INIT_TRACE_IRQFLAGS \ |
fbb9ce95 | 202 | INIT_LOCKDEP \ |
1da177e4 LT |
203 | } |
204 | ||
205 | ||
206 | #define INIT_CPU_TIMERS(cpu_timers) \ | |
207 | { \ | |
208 | LIST_HEAD_INIT(cpu_timers[0]), \ | |
209 | LIST_HEAD_INIT(cpu_timers[1]), \ | |
210 | LIST_HEAD_INIT(cpu_timers[2]), \ | |
211 | } | |
212 | ||
213 | ||
214 | #endif |