Ejemplos de mach_kauth_cred_uthread_update en C++ (Cpp)

Ejemplo n.º 1

Archivo: bsd_i386.c Proyecto: JackieXie168/xnu

void
mach_call_munger64(x86_saved_state_t *state)
{
	int call_number;
	int argc;
	mach_call_t mach_call;
	struct mach_call_args args = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
	x86_saved_state64_t	*regs;

#if PROC_REF_DEBUG
	struct uthread *ut = get_bsdthread_info(current_thread());

	uthread_reset_proc_refcount(ut);
#endif

	assert(is_saved_state64(state));
	regs = saved_state64(state);

	call_number = (int)(regs->rax & SYSCALL_NUMBER_MASK);

	DEBUG_KPRINT_SYSCALL_MACH(
		"mach_call_munger64: code=%d(%s)\n",
		call_number, mach_syscall_name_table[call_number]);

	KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE, 
		MACHDBG_CODE(DBG_MACH_EXCP_SC,(call_number)) | DBG_FUNC_START,
		regs->rdi, regs->rsi, regs->rdx, regs->r10, 0);
	
	if (call_number < 0 || call_number >= mach_trap_count) {
	        i386_exception(EXC_SYSCALL, regs->rax, 1);
		/* NOTREACHED */
	}
	mach_call = (mach_call_t)mach_trap_table[call_number].mach_trap_function;

	if (mach_call == (mach_call_t)kern_invalid) {
	        i386_exception(EXC_SYSCALL, regs->rax, 1);
		/* NOTREACHED */
	}
	argc = mach_trap_table[call_number].mach_trap_arg_count;
	if (argc) {
		int args_in_regs = MIN(6, argc);

		memcpy(&args.arg1, &regs->rdi, args_in_regs * sizeof(syscall_arg_t));

		if (argc > 6) {
	        int copyin_count;

			assert(argc <= 9);
			copyin_count = (argc - 6) * (int)sizeof(syscall_arg_t);

	        if (copyin((user_addr_t)(regs->isf.rsp + sizeof(user_addr_t)), (char *)&args.arg7, copyin_count)) {
		        regs->rax = KERN_INVALID_ARGUMENT;
			
				thread_exception_return();
				/* NOTREACHED */
			}
		}
	}

#ifdef MACH_BSD
	mach_kauth_cred_uthread_update();
#endif

	regs->rax = (uint64_t)mach_call((void *)&args);
	
	DEBUG_KPRINT_SYSCALL_MACH( "mach_call_munger64: retval=0x%llx\n", regs->rax);

	KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE, 
		MACHDBG_CODE(DBG_MACH_EXCP_SC,(call_number)) | DBG_FUNC_END, 
		regs->rax, 0, 0, 0, 0);

	throttle_lowpri_io(1);

#if PROC_REF_DEBUG
	if (__improbable(uthread_get_proc_refcount(ut) != 0)) {
		panic("system call returned with uu_proc_refcount != 0");
	}
#endif

	thread_exception_return();
	/* NOTREACHED */
}

Ejemplo n.º 2

Archivo: bsd_i386.c Proyecto: SbIm/xnu-env

void
mach_call_munger64(x86_saved_state_t *state)
{
	int call_number;
	int argc;
	mach_call_t mach_call;
	x86_saved_state64_t	*regs;

	assert(is_saved_state64(state));
	regs = saved_state64(state);

	call_number = (int)(regs->rax & SYSCALL_NUMBER_MASK);

	DEBUG_KPRINT_SYSCALL_MACH(
		"mach_call_munger64: code=%d(%s)\n",
		call_number, mach_syscall_name_table[call_number]);

	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_SC,
					   (call_number)) | DBG_FUNC_START,
			      regs->rdi, regs->rsi,
			      regs->rdx, regs->r10, 0);
	
	if (call_number < 0 || call_number >= mach_trap_count) {
	        i386_exception(EXC_SYSCALL, regs->rax, 1);
		/* NOTREACHED */
	}
	mach_call = (mach_call_t)mach_trap_table[call_number].mach_trap_function;

	if (mach_call == (mach_call_t)kern_invalid) {
	        i386_exception(EXC_SYSCALL, regs->rax, 1);
		/* NOTREACHED */
	}
	argc = mach_trap_table[call_number].mach_trap_arg_count;

	if (argc > 6) {
	        int copyin_count;

		copyin_count = (argc - 6) * (int)sizeof(uint64_t);

	        if (copyin((user_addr_t)(regs->isf.rsp + sizeof(user_addr_t)), (char *)&regs->v_arg6, copyin_count)) {
		        regs->rax = KERN_INVALID_ARGUMENT;
			
			thread_exception_return();
			/* NOTREACHED */
		}
	}

#ifdef MACH_BSD
	mach_kauth_cred_uthread_update();
#endif

	regs->rax = (uint64_t)mach_call((void *)(&regs->rdi));
	
	DEBUG_KPRINT_SYSCALL_MACH( "mach_call_munger64: retval=0x%llx\n", regs->rax);

	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_SC,
					   (call_number)) | DBG_FUNC_END,
			      regs->rax, 0, 0, 0, 0);

	throttle_lowpri_io(TRUE);

	thread_exception_return();
	/* NOTREACHED */
}

Ejemplo n.º 3

Archivo: bsd_i386.c Proyecto: JackieXie168/xnu

void
mach_call_munger(x86_saved_state_t *state)
{
	int argc;
	int call_number;
	mach_call_t mach_call;
	kern_return_t retval;
	struct mach_call_args args = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
	x86_saved_state32_t	*regs;

#if PROC_REF_DEBUG
	struct uthread *ut = get_bsdthread_info(current_thread());

	uthread_reset_proc_refcount(ut);
#endif

	assert(is_saved_state32(state));
	regs = saved_state32(state);

	call_number = -(regs->eax);

	DEBUG_KPRINT_SYSCALL_MACH(
		"mach_call_munger: code=%d(%s)\n",
		call_number, mach_syscall_name_table[call_number]);
#if DEBUG_TRACE
	kprintf("mach_call_munger(0x%08x) code=%d\n", regs, call_number);
#endif

	if (call_number < 0 || call_number >= mach_trap_count) {
		i386_exception(EXC_SYSCALL, call_number, 1);
		/* NOTREACHED */
	}
	mach_call = (mach_call_t)mach_trap_table[call_number].mach_trap_function;

	if (mach_call == (mach_call_t)kern_invalid) {
		DEBUG_KPRINT_SYSCALL_MACH(
			"mach_call_munger: kern_invalid 0x%x\n", regs->eax);
		i386_exception(EXC_SYSCALL, call_number, 1);
		/* NOTREACHED */
	}

	argc = mach_trap_table[call_number].mach_trap_arg_count;
	if (argc) {
		retval = mach_call_arg_munger32(regs->uesp, &args,  &mach_trap_table[call_number]);
		if (retval != KERN_SUCCESS) {
			regs->eax = retval;

			DEBUG_KPRINT_SYSCALL_MACH(
				"mach_call_munger: retval=0x%x\n", retval);

			thread_exception_return();
			/* NOTREACHED */
		}
	}

#ifdef MACH_BSD
	mach_kauth_cred_uthread_update();
#endif

	KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
		MACHDBG_CODE(DBG_MACH_EXCP_SC, (call_number)) | DBG_FUNC_START,
		args.arg1, args.arg2, args.arg3, args.arg4, 0);

	retval = mach_call(&args);

	DEBUG_KPRINT_SYSCALL_MACH("mach_call_munger: retval=0x%x\n", retval);

	KERNEL_DEBUG_CONSTANT_IST(KDEBUG_TRACE,
		MACHDBG_CODE(DBG_MACH_EXCP_SC,(call_number)) | DBG_FUNC_END,
		retval, 0, 0, 0, 0);

	regs->eax = retval;

	throttle_lowpri_io(1);

#if PROC_REF_DEBUG
	if (__improbable(uthread_get_proc_refcount(ut) != 0)) {
		panic("system call returned with uu_proc_refcount != 0");
	}
#endif

	thread_exception_return();
	/* NOTREACHED */
}

Ejemplo n.º 4

Archivo: bsd_i386.c Proyecto: SbIm/xnu-env

void
mach_call_munger(x86_saved_state_t *state)
{
	int argc;
	int call_number;
	mach_call_t mach_call;
	kern_return_t retval;
	struct mach_call_args args = { 0, 0, 0, 0, 0, 0, 0, 0, 0 };
	x86_saved_state32_t	*regs;

	assert(is_saved_state32(state));
	regs = saved_state32(state);

	call_number = -(regs->eax);

	DEBUG_KPRINT_SYSCALL_MACH(
		"mach_call_munger: code=%d(%s)\n",
		call_number, mach_syscall_name_table[call_number]);
#if DEBUG_TRACE
	kprintf("mach_call_munger(0x%08x) code=%d\n", regs, call_number);
#endif

	if (call_number < 0 || call_number >= mach_trap_count) {
		i386_exception(EXC_SYSCALL, call_number, 1);
		/* NOTREACHED */
	}
	mach_call = (mach_call_t)mach_trap_table[call_number].mach_trap_function;

	if (mach_call == (mach_call_t)kern_invalid) {
		DEBUG_KPRINT_SYSCALL_MACH(
			"mach_call_munger: kern_invalid 0x%x\n", regs->eax);
		i386_exception(EXC_SYSCALL, call_number, 1);
		/* NOTREACHED */
	}

	argc = mach_trap_table[call_number].mach_trap_arg_count;
	if (argc) {
		retval = mach_call_arg_munger32(regs->uesp, argc, call_number, &args);
		if (retval != KERN_SUCCESS) {
			regs->eax = retval;

			DEBUG_KPRINT_SYSCALL_MACH(
				"mach_call_munger: retval=0x%x\n", retval);

			thread_exception_return();
			/* NOTREACHED */
		}
	}

#ifdef MACH_BSD
	mach_kauth_cred_uthread_update();
#endif
	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_SC, (call_number)) | DBG_FUNC_START,
			args.arg1, args.arg2, args.arg3, args.arg4, 0);

	retval = mach_call(&args);

	DEBUG_KPRINT_SYSCALL_MACH("mach_call_munger: retval=0x%x\n", retval);

	KERNEL_DEBUG_CONSTANT(MACHDBG_CODE(DBG_MACH_EXCP_SC,(call_number)) | DBG_FUNC_END,
			retval, 0, 0, 0, 0);
	regs->eax = retval;

	throttle_lowpri_io(TRUE);

	thread_exception_return();
	/* NOTREACHED */
}