Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef _LINUX__INIT_TASK_H |
| 2 | #define _LINUX__INIT_TASK_H |
| 3 | |
| 4 | #include <linux/file.h> |
Dipankar Sarma | ab2af1f | 2005-09-09 13:04:13 -0700 | [diff] [blame] | 5 | #include <linux/rcupdate.h> |
Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 6 | #include <linux/irqflags.h> |
Serge E. Hallyn | 4865ecf | 2006-10-02 02:18:14 -0700 | [diff] [blame] | 7 | #include <linux/utsname.h> |
Ingo Molnar | fbb9ce9 | 2006-07-03 00:24:50 -0700 | [diff] [blame] | 8 | #include <linux/lockdep.h> |
Kirill Korotaev | 73ea413 | 2006-10-02 02:18:20 -0700 | [diff] [blame] | 9 | #include <linux/ipc.h> |
Cedric Le Goater | 9a575a9 | 2006-12-08 02:37:59 -0800 | [diff] [blame] | 10 | #include <linux/pid_namespace.h> |
Cedric Le Goater | acce292 | 2007-07-15 23:40:59 -0700 | [diff] [blame] | 11 | #include <linux/user_namespace.h> |
Eric W. Biederman | 772698f | 2007-09-12 11:55:17 +0200 | [diff] [blame] | 12 | #include <net/net_namespace.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | |
Dipankar Sarma | badf166 | 2005-09-09 13:04:10 -0700 | [diff] [blame] | 14 | #define INIT_FDTABLE \ |
| 15 | { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | .max_fds = NR_OPEN_DEFAULT, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | .fd = &init_files.fd_array[0], \ |
Eric Dumazet | 0c9e63f | 2006-03-23 03:00:12 -0800 | [diff] [blame] | 18 | .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \ |
| 19 | .open_fds = (fd_set *)&init_files.open_fds_init, \ |
Dipankar Sarma | ab2af1f | 2005-09-09 13:04:13 -0700 | [diff] [blame] | 20 | .rcu = RCU_HEAD_INIT, \ |
Dipankar Sarma | ab2af1f | 2005-09-09 13:04:13 -0700 | [diff] [blame] | 21 | .next = NULL, \ |
Dipankar Sarma | badf166 | 2005-09-09 13:04:10 -0700 | [diff] [blame] | 22 | } |
| 23 | |
| 24 | #define INIT_FILES \ |
| 25 | { \ |
| 26 | .count = ATOMIC_INIT(1), \ |
Dipankar Sarma | ab2af1f | 2005-09-09 13:04:13 -0700 | [diff] [blame] | 27 | .fdt = &init_files.fdtab, \ |
Dipankar Sarma | badf166 | 2005-09-09 13:04:10 -0700 | [diff] [blame] | 28 | .fdtab = INIT_FDTABLE, \ |
Ingo Molnar | e4d9191 | 2006-07-03 00:24:34 -0700 | [diff] [blame] | 29 | .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \ |
Eric Dumazet | 0c9e63f | 2006-03-23 03:00:12 -0800 | [diff] [blame] | 30 | .next_fd = 0, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | .close_on_exec_init = { { 0, } }, \ |
| 32 | .open_fds_init = { { 0, } }, \ |
| 33 | .fd_array = { NULL, } \ |
| 34 | } |
| 35 | |
| 36 | #define INIT_KIOCTX(name, which_mm) \ |
| 37 | { \ |
| 38 | .users = ATOMIC_INIT(1), \ |
| 39 | .dead = 0, \ |
| 40 | .mm = &which_mm, \ |
| 41 | .user_id = 0, \ |
| 42 | .next = NULL, \ |
| 43 | .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \ |
Ingo Molnar | e4d9191 | 2006-07-03 00:24:34 -0700 | [diff] [blame] | 44 | .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 45 | .reqs_active = 0U, \ |
| 46 | .max_reqs = ~0U, \ |
| 47 | } |
| 48 | |
| 49 | #define INIT_MM(name) \ |
| 50 | { \ |
| 51 | .mm_rb = RB_ROOT, \ |
| 52 | .pgd = swapper_pg_dir, \ |
| 53 | .mm_users = ATOMIC_INIT(2), \ |
| 54 | .mm_count = ATOMIC_INIT(1), \ |
| 55 | .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \ |
Ingo Molnar | e4d9191 | 2006-07-03 00:24:34 -0700 | [diff] [blame] | 56 | .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 57 | .mmlist = LIST_HEAD_INIT(name.mmlist), \ |
| 58 | .cpu_vm_mask = CPU_MASK_ALL, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | } |
| 60 | |
Cedric Le Goater | 1ec320a | 2006-12-08 02:37:55 -0800 | [diff] [blame] | 61 | #define INIT_SIGNALS(sig) { \ |
| 62 | .count = ATOMIC_INIT(1), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 63 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
Cedric Le Goater | 1ec320a | 2006-12-08 02:37:55 -0800 | [diff] [blame] | 64 | .shared_pending = { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
Cedric Le Goater | 1ec320a | 2006-12-08 02:37:55 -0800 | [diff] [blame] | 66 | .signal = {{0}}}, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ |
| 68 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ |
| 69 | .rlim = INIT_RLIMITS, \ |
| 70 | } |
| 71 | |
Serge E. Hallyn | ab51601 | 2006-10-02 02:18:06 -0700 | [diff] [blame] | 72 | extern struct nsproxy init_nsproxy; |
| 73 | #define INIT_NSPROXY(nsproxy) { \ |
Cedric Le Goater | 9a575a9 | 2006-12-08 02:37:59 -0800 | [diff] [blame] | 74 | .pid_ns = &init_pid_ns, \ |
Serge E. Hallyn | ab51601 | 2006-10-02 02:18:06 -0700 | [diff] [blame] | 75 | .count = ATOMIC_INIT(1), \ |
Serge E. Hallyn | 4865ecf | 2006-10-02 02:18:14 -0700 | [diff] [blame] | 76 | .uts_ns = &init_uts_ns, \ |
Kirill Korotaev | 6b3286e | 2006-12-08 02:37:56 -0800 | [diff] [blame] | 77 | .mnt_ns = NULL, \ |
Daniel Lezcano | 4fabcd7 | 2007-09-13 09:16:29 +0200 | [diff] [blame] | 78 | INIT_NET_NS(net_ns) \ |
Kirill Korotaev | 73ea413 | 2006-10-02 02:18:20 -0700 | [diff] [blame] | 79 | INIT_IPC_NS(ipc_ns) \ |
Cedric Le Goater | acce292 | 2007-07-15 23:40:59 -0700 | [diff] [blame] | 80 | .user_ns = &init_user_ns, \ |
Serge E. Hallyn | ab51601 | 2006-10-02 02:18:06 -0700 | [diff] [blame] | 81 | } |
| 82 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | #define INIT_SIGHAND(sighand) { \ |
| 84 | .count = ATOMIC_INIT(1), \ |
| 85 | .action = { { { .sa_handler = NULL, } }, }, \ |
Ingo Molnar | e4d9191 | 2006-07-03 00:24:34 -0700 | [diff] [blame] | 86 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
Davide Libenzi | b8fceee | 2007-09-20 12:40:16 -0700 | [diff] [blame] | 87 | .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | extern struct group_info init_groups; |
| 91 | |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 92 | #define INIT_STRUCT_PID { \ |
| 93 | .count = ATOMIC_INIT(1), \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 94 | .tasks = { \ |
| 95 | { .first = &init_task.pids[PIDTYPE_PID].node }, \ |
| 96 | { .first = &init_task.pids[PIDTYPE_PGID].node }, \ |
| 97 | { .first = &init_task.pids[PIDTYPE_SID].node }, \ |
| 98 | }, \ |
| 99 | .rcu = RCU_HEAD_INIT, \ |
Sukadev Bhattiprolu | 4c3f2ea | 2007-10-18 23:40:03 -0700 | [diff] [blame] | 100 | .level = 0, \ |
| 101 | .numbers = { { \ |
| 102 | .nr = 0, \ |
| 103 | .ns = &init_pid_ns, \ |
| 104 | .pid_chain = { .next = NULL, .pprev = NULL }, \ |
| 105 | }, } \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | #define INIT_PID_LINK(type) \ |
| 109 | { \ |
| 110 | .node = { \ |
| 111 | .next = NULL, \ |
| 112 | .pprev = &init_struct_pid.tasks[type].first, \ |
| 113 | }, \ |
| 114 | .pid = &init_struct_pid, \ |
| 115 | } |
| 116 | |
Al Viro | bfef93a | 2008-01-10 04:53:18 -0500 | [diff] [blame] | 117 | #ifdef CONFIG_AUDITSYSCALL |
| 118 | #define INIT_IDS \ |
Eric Paris | 4746ec5 | 2008-01-08 10:06:53 -0500 | [diff] [blame] | 119 | .loginuid = -1, \ |
| 120 | .sessionid = -1, |
Al Viro | bfef93a | 2008-01-10 04:53:18 -0500 | [diff] [blame] | 121 | #else |
| 122 | #define INIT_IDS |
| 123 | #endif |
Serge E. Hallyn | 3b7391d | 2008-02-04 22:29:45 -0800 | [diff] [blame] | 124 | |
| 125 | #ifdef CONFIG_SECURITY_FILE_CAPABILITIES |
| 126 | /* |
| 127 | * Because of the reduced scope of CAP_SETPCAP when filesystem |
| 128 | * capabilities are in effect, it is safe to allow CAP_SETPCAP to |
| 129 | * be available in the default configuration. |
| 130 | */ |
| 131 | # define CAP_INIT_BSET CAP_FULL_SET |
| 132 | #else |
| 133 | # define CAP_INIT_BSET CAP_INIT_EFF_SET |
| 134 | #endif |
| 135 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | /* |
| 137 | * INIT_TASK is used to set up the first task table, touch at |
| 138 | * your own risk!. Base=0, limit=0x1fffff (=2MB) |
| 139 | */ |
| 140 | #define INIT_TASK(tsk) \ |
| 141 | { \ |
| 142 | .state = 0, \ |
Roman Zippel | f7e4217 | 2007-05-09 02:35:17 -0700 | [diff] [blame] | 143 | .stack = &init_thread_info, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | .usage = ATOMIC_INIT(2), \ |
| 145 | .flags = 0, \ |
| 146 | .lock_depth = -1, \ |
| 147 | .prio = MAX_PRIO-20, \ |
| 148 | .static_prio = MAX_PRIO-20, \ |
Ingo Molnar | b29739f | 2006-06-27 02:54:51 -0700 | [diff] [blame] | 149 | .normal_prio = MAX_PRIO-20, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | .policy = SCHED_NORMAL, \ |
| 151 | .cpus_allowed = CPU_MASK_ALL, \ |
| 152 | .mm = NULL, \ |
| 153 | .active_mm = &init_mm, \ |
Peter Zijlstra | fa71706 | 2008-01-25 21:08:27 +0100 | [diff] [blame] | 154 | .rt = { \ |
| 155 | .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \ |
Peter Zijlstra | 6f505b1 | 2008-01-25 21:08:30 +0100 | [diff] [blame] | 156 | .time_slice = HZ, \ |
| 157 | .nr_cpus_allowed = NR_CPUS, \ |
| 158 | }, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 159 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ |
| 160 | .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \ |
| 161 | .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \ |
| 162 | .real_parent = &tsk, \ |
| 163 | .parent = &tsk, \ |
| 164 | .children = LIST_HEAD_INIT(tsk.children), \ |
| 165 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ |
| 166 | .group_leader = &tsk, \ |
| 167 | .group_info = &init_groups, \ |
| 168 | .cap_effective = CAP_INIT_EFF_SET, \ |
| 169 | .cap_inheritable = CAP_INIT_INH_SET, \ |
| 170 | .cap_permitted = CAP_FULL_SET, \ |
Serge E. Hallyn | 3b7391d | 2008-02-04 22:29:45 -0800 | [diff] [blame] | 171 | .cap_bset = CAP_INIT_BSET, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | .keep_capabilities = 0, \ |
| 173 | .user = INIT_USER, \ |
| 174 | .comm = "swapper", \ |
| 175 | .thread = INIT_THREAD, \ |
| 176 | .fs = &init_fs, \ |
| 177 | .files = &init_files, \ |
| 178 | .signal = &init_signals, \ |
| 179 | .sighand = &init_sighand, \ |
Serge E. Hallyn | ab51601 | 2006-10-02 02:18:06 -0700 | [diff] [blame] | 180 | .nsproxy = &init_nsproxy, \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | .pending = { \ |
| 182 | .list = LIST_HEAD_INIT(tsk.pending.list), \ |
| 183 | .signal = {{0}}}, \ |
| 184 | .blocked = {{0}}, \ |
Ingo Molnar | e4d9191 | 2006-07-03 00:24:34 -0700 | [diff] [blame] | 185 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | .journal_info = NULL, \ |
| 187 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ |
Jens Axboe | 22e2c50 | 2005-06-27 10:55:12 +0200 | [diff] [blame] | 188 | .fs_excl = ATOMIC_INIT(0), \ |
Milind Arun Choudhary | b32e41b | 2007-05-08 00:30:08 -0700 | [diff] [blame] | 189 | .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 190 | .pids = { \ |
| 191 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ |
| 192 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ |
| 193 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ |
| 194 | }, \ |
Peter Zijlstra | 3e26c14 | 2007-10-16 23:25:50 -0700 | [diff] [blame] | 195 | .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ |
Al Viro | bfef93a | 2008-01-10 04:53:18 -0500 | [diff] [blame] | 196 | INIT_IDS \ |
Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 197 | INIT_TRACE_IRQFLAGS \ |
Ingo Molnar | fbb9ce9 | 2006-07-03 00:24:50 -0700 | [diff] [blame] | 198 | INIT_LOCKDEP \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | |
| 202 | #define INIT_CPU_TIMERS(cpu_timers) \ |
| 203 | { \ |
| 204 | LIST_HEAD_INIT(cpu_timers[0]), \ |
| 205 | LIST_HEAD_INIT(cpu_timers[1]), \ |
| 206 | LIST_HEAD_INIT(cpu_timers[2]), \ |
| 207 | } |
| 208 | |
| 209 | |
| 210 | #endif |