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
|
// SPDX-License-Identifier: GPL-2.0-or-later
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "vas-api.h"
#include "utils.h"
static bool faulted;
static void sigbus_handler(int n, siginfo_t *info, void *ctxt_v)
{
ucontext_t *ctxt = (ucontext_t *)ctxt_v;
struct pt_regs *regs = ctxt->uc_mcontext.regs;
faulted = true;
regs->nip += 4;
}
static int test_ra_error(void)
{
struct vas_tx_win_open_attr attr;
int fd, *paste_addr;
char *devname = "/dev/crypto/nx-gzip";
struct sigaction act = {
.sa_sigaction = sigbus_handler,
.sa_flags = SA_SIGINFO,
};
memset(&attr, 0, sizeof(attr));
attr.version = 1;
attr.vas_id = 0;
SKIP_IF(access(devname, F_OK));
fd = open(devname, O_RDWR);
FAIL_IF(fd < 0);
FAIL_IF(ioctl(fd, VAS_TX_WIN_OPEN, &attr) < 0);
FAIL_IF(sigaction(SIGBUS, &act, NULL) != 0);
paste_addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0ULL);
/* The following assignment triggers exception */
mb();
*paste_addr = 1;
mb();
FAIL_IF(!faulted);
return 0;
}
int main(void)
{
return test_harness(test_ra_error, "inject-ra-err");
}
|
