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662 | decky | 1 | /* |
2071 | jermar | 2 | * Copyright (c) 2005 Martin Decky |
662 | decky | 3 | * All rights reserved. |
4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
1862 | jermar | 29 | /** @addtogroup generic |
1702 | cejka | 30 | * @{ |
31 | */ |
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32 | |||
1264 | jermar | 33 | /** |
1702 | cejka | 34 | * @file |
1264 | jermar | 35 | * @brief Syscall table and syscall wrappers. |
36 | */ |
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37 | |||
678 | decky | 38 | #include <syscall/syscall.h> |
714 | decky | 39 | #include <proc/thread.h> |
1118 | jermar | 40 | #include <proc/task.h> |
3203 | svoboda | 41 | #include <proc/program.h> |
977 | jermar | 42 | #include <mm/as.h> |
712 | decky | 43 | #include <print.h> |
44 | #include <putchar.h> |
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955 | palkovsky | 45 | #include <errno.h> |
46 | #include <arch.h> |
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47 | #include <debug.h> |
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1027 | palkovsky | 48 | #include <ipc/sysipc.h> |
1109 | jermar | 49 | #include <synch/futex.h> |
1178 | jermar | 50 | #include <ddi/ddi.h> |
1297 | jermar | 51 | #include <security/cap.h> |
1293 | palkovsky | 52 | #include <syscall/copy.h> |
1318 | vana | 53 | #include <sysinfo/sysinfo.h> |
1474 | palkovsky | 54 | #include <console/console.h> |
662 | decky | 55 | |
1448 | palkovsky | 56 | /** Print using kernel facility |
57 | * |
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3149 | svoboda | 58 | * Print to kernel log. |
59 | * |
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1448 | palkovsky | 60 | */ |
3153 | svoboda | 61 | static unative_t sys_klog(int fd, const void * buf, size_t count) |
1386 | palkovsky | 62 | { |
1448 | palkovsky | 63 | size_t i; |
64 | char *data; |
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65 | int rc; |
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1386 | palkovsky | 66 | |
1448 | palkovsky | 67 | if (count > PAGE_SIZE) |
68 | return ELIMIT; |
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712 | decky | 69 | |
3153 | svoboda | 70 | if (count > 0) { |
71 | data = (char *) malloc(count, 0); |
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72 | if (!data) |
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73 | return ENOMEM; |
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74 | |||
75 | rc = copy_from_uspace(data, buf, count); |
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76 | if (rc) { |
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77 | free(data); |
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78 | return rc; |
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79 | } |
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80 | |||
81 | for (i = 0; i < count; i++) |
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82 | putchar(data[i]); |
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1448 | palkovsky | 83 | free(data); |
3153 | svoboda | 84 | } else |
85 | klog_update(); |
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712 | decky | 86 | |
1386 | palkovsky | 87 | return count; |
662 | decky | 88 | } |
89 | |||
1474 | palkovsky | 90 | /** Tell kernel to get keyboard/console access again */ |
1780 | jermar | 91 | static unative_t sys_debug_enable_console(void) |
1474 | palkovsky | 92 | { |
93 | arch_grab_console(); |
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94 | return 0; |
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95 | } |
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96 | |||
2952 | svoboda | 97 | /** Print a hex integer into klog */ |
98 | static unative_t sys_debug_putint(unative_t i) |
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99 | { |
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3150 | svoboda | 100 | printf("[task:0x%x]", i); |
2952 | svoboda | 101 | return 0; |
102 | } |
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103 | |||
1100 | palkovsky | 104 | /** Dispatch system call */ |
2605 | jermar | 105 | unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3, |
106 | unative_t a4, unative_t a5, unative_t a6, unative_t id) |
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1100 | palkovsky | 107 | { |
1780 | jermar | 108 | unative_t rc; |
1579 | jermar | 109 | |
1100 | palkovsky | 110 | if (id < SYSCALL_END) |
2605 | jermar | 111 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
1597 | palkovsky | 112 | else { |
3149 | svoboda | 113 | printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id); |
1597 | palkovsky | 114 | task_kill(TASK->taskid); |
115 | thread_exit(); |
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116 | } |
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1579 | jermar | 117 | |
118 | if (THREAD->interrupted) |
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119 | thread_exit(); |
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120 | |||
121 | return rc; |
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1100 | palkovsky | 122 | } |
123 | |||
662 | decky | 124 | syshandler_t syscall_table[SYSCALL_END] = { |
3153 | svoboda | 125 | (syshandler_t) sys_klog, |
2119 | decky | 126 | (syshandler_t) sys_tls_set, |
1297 | jermar | 127 | |
1235 | jermar | 128 | /* Thread and task related syscalls. */ |
2119 | decky | 129 | (syshandler_t) sys_thread_create, |
130 | (syshandler_t) sys_thread_exit, |
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2187 | decky | 131 | (syshandler_t) sys_thread_get_id, |
3149 | svoboda | 132 | |
2119 | decky | 133 | (syshandler_t) sys_task_get_id, |
3203 | svoboda | 134 | (syshandler_t) sys_program_spawn_loader, |
1235 | jermar | 135 | |
136 | /* Synchronization related syscalls. */ |
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2119 | decky | 137 | (syshandler_t) sys_futex_sleep_timeout, |
138 | (syshandler_t) sys_futex_wakeup, |
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1235 | jermar | 139 | |
140 | /* Address space related syscalls. */ |
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2119 | decky | 141 | (syshandler_t) sys_as_area_create, |
142 | (syshandler_t) sys_as_area_resize, |
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2984 | svoboda | 143 | (syshandler_t) sys_as_area_change_flags, |
2119 | decky | 144 | (syshandler_t) sys_as_area_destroy, |
145 | |||
1235 | jermar | 146 | /* IPC related syscalls. */ |
2119 | decky | 147 | (syshandler_t) sys_ipc_call_sync_fast, |
2615 | jermar | 148 | (syshandler_t) sys_ipc_call_sync_slow, |
2119 | decky | 149 | (syshandler_t) sys_ipc_call_async_fast, |
2618 | jermar | 150 | (syshandler_t) sys_ipc_call_async_slow, |
2119 | decky | 151 | (syshandler_t) sys_ipc_answer_fast, |
2619 | jermar | 152 | (syshandler_t) sys_ipc_answer_slow, |
2119 | decky | 153 | (syshandler_t) sys_ipc_forward_fast, |
154 | (syshandler_t) sys_ipc_wait_for_call, |
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155 | (syshandler_t) sys_ipc_hangup, |
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156 | (syshandler_t) sys_ipc_register_irq, |
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157 | (syshandler_t) sys_ipc_unregister_irq, |
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158 | |||
1297 | jermar | 159 | /* Capabilities related syscalls. */ |
2119 | decky | 160 | (syshandler_t) sys_cap_grant, |
161 | (syshandler_t) sys_cap_revoke, |
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162 | |||
1235 | jermar | 163 | /* DDI related syscalls. */ |
2119 | decky | 164 | (syshandler_t) sys_physmem_map, |
165 | (syshandler_t) sys_iospace_enable, |
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166 | (syshandler_t) sys_preempt_control, |
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1318 | vana | 167 | |
168 | /* Sysinfo syscalls */ |
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2119 | decky | 169 | (syshandler_t) sys_sysinfo_valid, |
170 | (syshandler_t) sys_sysinfo_value, |
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1474 | palkovsky | 171 | |
172 | /* Debug calls */ |
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2984 | svoboda | 173 | (syshandler_t) sys_debug_putint, |
174 | (syshandler_t) sys_debug_enable_console |
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662 | decky | 175 | }; |
1702 | cejka | 176 | |
1862 | jermar | 177 | /** @} |
1702 | cejka | 178 | */ |