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Kernel: Only allow superuser to halt() the system (#342)
Following the discussion in #334, shutdown must also have root-only run permissions.
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6 changed files with 31 additions and 10 deletions
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@ -1,7 +1,7 @@
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#include <Kernel/Arch/i386/CPU.h>
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#include <Kernel/Console.h>
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#include <Kernel/Process.h>
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#include <Kernel/IO.h>
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#include <Kernel/Process.h>
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#include <Kernel/ProcessTracer.h>
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#include <Kernel/Scheduler.h>
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#include <Kernel/Syscall.h>
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@ -285,12 +285,7 @@ static u32 handle(RegisterDump& regs, u32 function, u32 arg1, u32 arg2, u32 arg3
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case Syscall::SC_sched_getparam:
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return current->process().sys$sched_setparam((pid_t)arg1, (struct sched_param*)arg2);
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case Syscall::SC_halt: {
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dbgprintf("<%u> halting! acquiring locks...\n");
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FS::lock_all();
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dbgprintf("<%u> halting! syncing...\n");
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FS::sync();
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dbgprintf("<%u> halting! bye, friends...\n");
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IO::out16(0x604, 0x2000);
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return current->process().sys$halt();
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break;
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}
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case Syscall::SC_reboot: {
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