enable tun/tap/iptables

hc

2024-05-10 ee930fffee469d076998274a2ca55e13dc1efb67

 kernel/arch/x86/um/shared/sysdep/syscalls_64.h
..
..
@@ -10,13 +10,12 @@
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 #include <linux/msg.h>
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 #include <linux/shm.h>
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-typedef long syscall_handler_t(void);
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+typedef long syscall_handler_t(long, long, long, long, long, long);
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 extern syscall_handler_t *sys_call_table[];
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 #define EXECUTE_SYSCALL(syscall, regs) \
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-	(((long (*)(long, long, long, long, long, long)) \
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-	  (*sys_call_table[syscall]))(UPT_SYSCALL_ARG1(&regs->regs), \
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+	(((*sys_call_table[syscall]))(UPT_SYSCALL_ARG1(&regs->regs), \
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 		 		      UPT_SYSCALL_ARG2(&regs->regs), \
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 				      UPT_SYSCALL_ARG3(&regs->regs), \
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 				      UPT_SYSCALL_ARG4(&regs->regs), \