1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
#include "../tests.h"
#include <camellia/compat.h>
#include <camellia/errno.h>
#include <camellia/flags.h>
#include <camellia/syscalls.h>
#include <string.h>
#include <unistd.h>
static void test_fault_kill(void) {
if (!fork()) { /* invalid memory access */
asm volatile("movb $69, 0" ::: "memory");
test_fail();
}
if (!fork()) { /* #GP */
asm volatile("hlt" ::: "memory");
test_fail();
}
int await_cnt = 0;
while (_sys_await() != ~0) await_cnt++;
test(await_cnt == 2);
}
static void test_efault(void) {
#if 0
const char *str = "o, 16 characters";
char str2[16];
char *invalid = (void*)0x1000;
hid_t h;
memcpy(str2, str, 16);
test((h = _sys_open(TMPFILEPATH, strlen(TMPFILEPATH), OPEN_CREATE | OPEN_WRITE)) >= 0);
test(_sys_write(h, str, 16, 0, 0) == 16);
test(_sys_write(h, str2, 16, 0, 0) == 16);
test(_sys_write(h, invalid, 16, 0, 0) == -EFAULT);
/* x64 non-canonical pointers */
test(_sys_write(h, (void*)((uintptr_t)str ^ 0x8000000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str ^ 0x1000000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str ^ 0x0100000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str ^ 0x0010000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str ^ 0x0001000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str ^ 0x0000800000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str2 ^ 0x8000000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str2 ^ 0x1000000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str2 ^ 0x0100000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str2 ^ 0x0010000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str2 ^ 0x0001000000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, (void*)((uintptr_t)str2 ^ 0x0000800000000000), 16, 0, 0) == -EFAULT);
test(_sys_write(h, str, 16, 0, 0) == 16);
close(h);
#endif
}
static void test_invalid_syscall(void) {
test(_syscall(~0, 0, 0, 0, 0, 0) < 0);
}
void r_k_misc(void) {
run_test(test_fault_kill);
run_test(test_efault);
run_test(test_invalid_syscall);
}
|