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Rev | Author | Line No. | Line |
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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> |
3222 | 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> |
3222 | svoboda | 50 | #include <synch/smc.h> |
1178 | jermar | 51 | #include <ddi/ddi.h> |
1297 | jermar | 52 | #include <security/cap.h> |
1293 | palkovsky | 53 | #include <syscall/copy.h> |
1318 | vana | 54 | #include <sysinfo/sysinfo.h> |
1474 | palkovsky | 55 | #include <console/console.h> |
3438 | svoboda | 56 | #include <udebug/udebug.h> |
662 | decky | 57 | |
1448 | palkovsky | 58 | /** Print using kernel facility |
59 | * |
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3064 | decky | 60 | * Print to kernel log. |
61 | * |
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1448 | palkovsky | 62 | */ |
3113 | decky | 63 | static unative_t sys_klog(int fd, const void * buf, size_t count) |
1386 | palkovsky | 64 | { |
1448 | palkovsky | 65 | char *data; |
66 | int rc; |
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1386 | palkovsky | 67 | |
1448 | palkovsky | 68 | if (count > PAGE_SIZE) |
69 | return ELIMIT; |
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712 | decky | 70 | |
3097 | decky | 71 | if (count > 0) { |
3842 | decky | 72 | data = (char *) malloc(count + 1, 0); |
3097 | decky | 73 | if (!data) |
74 | return ENOMEM; |
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75 | |||
76 | rc = copy_from_uspace(data, buf, count); |
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77 | if (rc) { |
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78 | free(data); |
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79 | return rc; |
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80 | } |
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3842 | decky | 81 | data[count] = 0; |
82 | |||
83 | printf("%s", data); |
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1448 | palkovsky | 84 | free(data); |
3097 | decky | 85 | } else |
86 | klog_update(); |
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712 | decky | 87 | |
1386 | palkovsky | 88 | return count; |
662 | decky | 89 | } |
90 | |||
1474 | palkovsky | 91 | /** Tell kernel to get keyboard/console access again */ |
1780 | jermar | 92 | static unative_t sys_debug_enable_console(void) |
1474 | palkovsky | 93 | { |
3707 | decky | 94 | #ifdef CONFIG_KCONSOLE |
3844 | decky | 95 | grab_console(); |
3707 | decky | 96 | return true; |
97 | #else |
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98 | return false; |
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99 | #endif |
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1474 | palkovsky | 100 | } |
101 | |||
3844 | decky | 102 | /** Tell kernel to relinquish keyboard/console access */ |
103 | static unative_t sys_debug_disable_console(void) |
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104 | { |
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105 | release_console(); |
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106 | return true; |
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107 | } |
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108 | |||
1100 | palkovsky | 109 | /** Dispatch system call */ |
2605 | jermar | 110 | unative_t syscall_handler(unative_t a1, unative_t a2, unative_t a3, |
111 | unative_t a4, unative_t a5, unative_t a6, unative_t id) |
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1100 | palkovsky | 112 | { |
1780 | jermar | 113 | unative_t rc; |
1579 | jermar | 114 | |
3438 | svoboda | 115 | #ifdef CONFIG_UDEBUG |
116 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, 0, false); |
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117 | #endif |
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118 | if (id < SYSCALL_END) { |
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2605 | jermar | 119 | rc = syscall_table[id](a1, a2, a3, a4, a5, a6); |
3438 | svoboda | 120 | } else { |
3064 | decky | 121 | printf("Task %" PRIu64": Unknown syscall %#" PRIxn, TASK->taskid, id); |
1597 | palkovsky | 122 | task_kill(TASK->taskid); |
123 | thread_exit(); |
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124 | } |
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1579 | jermar | 125 | |
126 | if (THREAD->interrupted) |
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127 | thread_exit(); |
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3438 | svoboda | 128 | |
129 | #ifdef CONFIG_UDEBUG |
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130 | udebug_syscall_event(a1, a2, a3, a4, a5, a6, id, rc, true); |
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3614 | svoboda | 131 | |
132 | /* |
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133 | * Stopping point needed for tasks that only invoke non-blocking |
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134 | * system calls. |
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135 | */ |
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136 | udebug_stoppable_begin(); |
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137 | udebug_stoppable_end(); |
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3603 | svoboda | 138 | #endif |
1579 | jermar | 139 | return rc; |
1100 | palkovsky | 140 | } |
141 | |||
662 | decky | 142 | syshandler_t syscall_table[SYSCALL_END] = { |
3113 | decky | 143 | (syshandler_t) sys_klog, |
2119 | decky | 144 | (syshandler_t) sys_tls_set, |
1297 | jermar | 145 | |
1235 | jermar | 146 | /* Thread and task related syscalls. */ |
2119 | decky | 147 | (syshandler_t) sys_thread_create, |
148 | (syshandler_t) sys_thread_exit, |
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2187 | decky | 149 | (syshandler_t) sys_thread_get_id, |
3064 | decky | 150 | |
2119 | decky | 151 | (syshandler_t) sys_task_get_id, |
3222 | svoboda | 152 | (syshandler_t) sys_program_spawn_loader, |
1235 | jermar | 153 | |
154 | /* Synchronization related syscalls. */ |
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2119 | decky | 155 | (syshandler_t) sys_futex_sleep_timeout, |
156 | (syshandler_t) sys_futex_wakeup, |
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3222 | svoboda | 157 | (syshandler_t) sys_smc_coherence, |
1235 | jermar | 158 | |
159 | /* Address space related syscalls. */ |
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2119 | decky | 160 | (syshandler_t) sys_as_area_create, |
161 | (syshandler_t) sys_as_area_resize, |
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3222 | svoboda | 162 | (syshandler_t) sys_as_area_change_flags, |
2119 | decky | 163 | (syshandler_t) sys_as_area_destroy, |
164 | |||
1235 | jermar | 165 | /* IPC related syscalls. */ |
2119 | decky | 166 | (syshandler_t) sys_ipc_call_sync_fast, |
2615 | jermar | 167 | (syshandler_t) sys_ipc_call_sync_slow, |
2119 | decky | 168 | (syshandler_t) sys_ipc_call_async_fast, |
2618 | jermar | 169 | (syshandler_t) sys_ipc_call_async_slow, |
2119 | decky | 170 | (syshandler_t) sys_ipc_answer_fast, |
2619 | jermar | 171 | (syshandler_t) sys_ipc_answer_slow, |
2119 | decky | 172 | (syshandler_t) sys_ipc_forward_fast, |
3819 | jermar | 173 | (syshandler_t) sys_ipc_forward_slow, |
2119 | decky | 174 | (syshandler_t) sys_ipc_wait_for_call, |
175 | (syshandler_t) sys_ipc_hangup, |
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176 | (syshandler_t) sys_ipc_register_irq, |
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177 | (syshandler_t) sys_ipc_unregister_irq, |
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178 | |||
1297 | jermar | 179 | /* Capabilities related syscalls. */ |
2119 | decky | 180 | (syshandler_t) sys_cap_grant, |
181 | (syshandler_t) sys_cap_revoke, |
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182 | |||
1235 | jermar | 183 | /* DDI related syscalls. */ |
2119 | decky | 184 | (syshandler_t) sys_physmem_map, |
185 | (syshandler_t) sys_iospace_enable, |
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186 | (syshandler_t) sys_preempt_control, |
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1318 | vana | 187 | |
188 | /* Sysinfo syscalls */ |
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2119 | decky | 189 | (syshandler_t) sys_sysinfo_valid, |
190 | (syshandler_t) sys_sysinfo_value, |
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1474 | palkovsky | 191 | |
192 | /* Debug calls */ |
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3438 | svoboda | 193 | (syshandler_t) sys_debug_enable_console, |
3844 | decky | 194 | (syshandler_t) sys_debug_disable_console, |
195 | |||
3438 | svoboda | 196 | (syshandler_t) sys_ipc_connect_kbox |
662 | decky | 197 | }; |
1702 | cejka | 198 | |
1862 | jermar | 199 | /** @} |
1702 | cejka | 200 | */ |