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Message-ID: <20240828225522.684774-2-jeffxu@chromium.org>
Date: Wed, 28 Aug 2024 22:55:22 +0000
From: jeffxu@...omium.org
To: akpm@...ux-foundation.org
Cc: linux-kselftest@...r.kernel.org,
linux-mm@...ck.org,
linux-hardening@...r.kernel.org,
pedro.falcato@...il.com,
rientjes@...gle.com,
keescook@...omium.org,
Jeff Xu <jeffxu@...omium.org>
Subject: [PATCH v1 2/2] selftests/mm: mseal_test add more tests
From: Jeff Xu <jeffxu@...omium.org>
Add more testcases and increase test coverage, e.g. add
get_vma_size to check VMA size and prot bits.
Signed-off-by: Jeff Xu <jeffxu@...omium.org>
---
tools/testing/selftests/mm/mseal_test.c | 826 ++++++++++++++++++++++--
1 file changed, 759 insertions(+), 67 deletions(-)
diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
index e7991e5fdcf3..4b3f883aae17 100644
--- a/tools/testing/selftests/mm/mseal_test.c
+++ b/tools/testing/selftests/mm/mseal_test.c
@@ -170,18 +170,30 @@ static void set_pkey(int pkey, unsigned long pkey_value)
static void setup_single_address(int size, void **ptrOut)
{
void *ptr;
+ unsigned long page_size = getpagesize();
- ptr = mmap(NULL, size, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
- *ptrOut = ptr;
+ *ptrOut = (void *)-1;
+ ptr = mmap(NULL, size + 2 * page_size, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+ if (ptr != (void *) -1) {
+ sys_mprotect(ptr, page_size, PROT_NONE);
+ sys_mprotect(ptr + size + page_size, page_size, PROT_NONE);
+ *ptrOut = ptr + page_size;
+ }
}
static void setup_single_address_rw(int size, void **ptrOut)
{
void *ptr;
unsigned long mapflags = MAP_ANONYMOUS | MAP_PRIVATE;
+ unsigned long page_size = getpagesize();
- ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, mapflags, -1, 0);
- *ptrOut = ptr;
+ *ptrOut = (void *)-1;
+ ptr = mmap(NULL, size + 2 * page_size, PROT_READ | PROT_WRITE, mapflags, -1, 0);
+ if (ptr != (void *) -1) {
+ sys_mprotect(ptr, page_size, PROT_NONE);
+ sys_mprotect(ptr + size + page_size, page_size, PROT_NONE);
+ *ptrOut = ptr + page_size;
+ }
}
static int clean_single_address(void *ptr, int size)
@@ -226,6 +238,21 @@ bool pkey_supported(void)
return false;
}
+bool get_vma_size_supported(void)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 4 * page_size;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ size = get_vma_size(ptr, &prot);
+ if (size == 4 * page_size && prot == 0x4)
+ return true;
+
+ return false;
+}
+
static void test_seal_addseal(void)
{
int ret;
@@ -419,11 +446,17 @@ static void test_seal_invalid_input(void)
unsigned long size = 4 * page_size;
int ret;
- setup_single_address(8 * page_size, &ptr);
+ setup_single_address(9 * page_size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
- ret = clean_single_address(ptr + 4 * page_size, 4 * page_size);
+
+ ret = clean_single_address(ptr, page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ ret = clean_single_address(ptr + 5 * page_size, 4 * page_size);
FAIL_TEST_IF_FALSE(!ret);
+ ptr = ptr + page_size;
+
/* invalid flag */
ret = syscall(__NR_mseal, ptr, size, 0x20);
FAIL_TEST_IF_FALSE(ret < 0);
@@ -523,6 +556,7 @@ static void test_seal_mprotect(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -533,9 +567,14 @@ static void test_seal_mprotect(bool seal)
}
ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -547,6 +586,7 @@ static void test_seal_start_mprotect(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -558,9 +598,14 @@ static void test_seal_start_mprotect(bool seal)
/* the first page is sealed. */
ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
/* pages after the first page is not sealed. */
@@ -577,6 +622,7 @@ static void test_seal_end_mprotect(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -593,9 +639,14 @@ static void test_seal_end_mprotect(bool seal)
/* last 3 page are sealed */
ret = sys_mprotect(ptr + page_size, page_size * 3,
PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr + page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -607,6 +658,7 @@ static void test_seal_mprotect_unalign_len(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -618,9 +670,14 @@ static void test_seal_mprotect_unalign_len(bool seal)
/* 2 pages are sealed. */
ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
ret = sys_mprotect(ptr + page_size * 2, page_size,
@@ -636,6 +693,7 @@ static void test_seal_mprotect_unalign_len_variant_2(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -646,9 +704,14 @@ static void test_seal_mprotect_unalign_len_variant_2(bool seal)
/* 3 pages are sealed. */
ret = sys_mprotect(ptr, page_size * 3, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
ret = sys_mprotect(ptr + page_size * 3, page_size,
@@ -664,6 +727,7 @@ static void test_seal_mprotect_two_vma(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -678,16 +742,26 @@ static void test_seal_mprotect_two_vma(bool seal)
}
ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+ } else
FAIL_TEST_IF_FALSE(!ret);
ret = sys_mprotect(ptr + page_size * 2, page_size * 2,
PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr + page_size * 2, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -699,6 +773,7 @@ static void test_seal_mprotect_two_vma_with_split(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -719,17 +794,27 @@ static void test_seal_mprotect_two_vma_with_split(bool seal)
/* the second page is sealed. */
ret = sys_mprotect(ptr + page_size, page_size, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+ } else
FAIL_TEST_IF_FALSE(!ret);
/* the third page is sealed. */
ret = sys_mprotect(ptr + 2 * page_size, page_size,
PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr + 2 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
/* the fouth page is not sealed. */
@@ -746,6 +831,7 @@ static void test_seal_mprotect_partial_mprotect(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -758,9 +844,14 @@ static void test_seal_mprotect_partial_mprotect(bool seal)
/* mprotect first 2 page will fail, since the first page are sealed. */
ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -783,15 +874,15 @@ static void test_seal_mprotect_partial_mprotect_tail(bool seal)
}
ret = sys_mprotect(ptr, size, PROT_EXEC);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
- FAIL_TEST_IF_FALSE(!ret);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
- if (seal) {
- FAIL_TEST_IF_FALSE(get_vma_size(ptr + page_size, &prot) > 0);
+ size = get_vma_size(ptr + page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
FAIL_TEST_IF_FALSE(prot == 0x4);
- }
+ } else
+ FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
}
@@ -846,6 +937,7 @@ static void test_seal_mprotect_split(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -862,16 +954,34 @@ static void test_seal_mprotect_split(bool seal)
/* mprotect is sealed. */
ret = sys_mprotect(ptr, 2 * page_size, PROT_READ);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+
+ size = get_vma_size(ptr + page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
ret = sys_mprotect(ptr + 2 * page_size, 2 * page_size, PROT_READ);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+
+ size = get_vma_size(ptr + page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -883,6 +993,7 @@ static void test_seal_mprotect_merge(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -899,9 +1010,18 @@ static void test_seal_mprotect_merge(bool seal)
/* 2 pages are sealed. */
ret = sys_mprotect(ptr, 2 * page_size, PROT_READ);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+
+ size = get_vma_size(ptr + page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
/* last 2 pages are not sealed. */
@@ -917,6 +1037,7 @@ static void test_seal_munmap(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -928,9 +1049,14 @@ static void test_seal_munmap(bool seal)
/* 4 pages are sealed. */
ret = sys_munmap(ptr, size);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -948,6 +1074,7 @@ static void test_seal_munmap_two_vma(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -962,15 +1089,33 @@ static void test_seal_munmap_two_vma(bool seal)
}
ret = sys_munmap(ptr, page_size * 2);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+
+ size = get_vma_size(ptr + 2 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
ret = sys_munmap(ptr + page_size, page_size * 2);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x6);
+
+ size = get_vma_size(ptr + 2 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -1018,33 +1163,75 @@ static void test_seal_munmap_partial_across_vmas(bool seal)
{
void *ptr;
unsigned long page_size = getpagesize();
- unsigned long size = 2 * page_size;
+ unsigned long size = 12 * page_size;
int ret;
int prot;
- /*
- * Check if a partial mseal (that results in two vmas) works correctly.
- * It might unmap the first, but it'll never unmap the second (msealed) vma.
- */
-
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
if (seal) {
- ret = sys_mseal(ptr + page_size, page_size);
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
FAIL_TEST_IF_FALSE(!ret);
}
- ret = sys_munmap(ptr, size);
- if (seal)
+ ret = sys_munmap(ptr, 12 * page_size);
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 8 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
+
+ ret = sys_munmap(ptr, 6 * page_size);
if (seal) {
- FAIL_TEST_IF_FALSE(get_vma_size(ptr + page_size, &prot) > 0);
+ FAIL_TEST_IF_FALSE(ret < 0);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 8 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
+ FAIL_TEST_IF_FALSE(!ret);
+
+ ret = sys_munmap(ptr + 6 * page_size, 6 * page_size);
+ if (seal) {
+ FAIL_TEST_IF_FALSE(ret < 0);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
FAIL_TEST_IF_FALSE(prot == 0x4);
- }
+
+ size = get_vma_size(ptr + 8 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
+ FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
}
@@ -1074,9 +1261,11 @@ static void test_munmap_start_freed(bool seal)
ret = sys_munmap(ptr, size);
if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
size = get_vma_size(ptr + page_size, &prot);
- FAIL_TEST_IF_FALSE(size == page_size * 3);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else {
/* note: this will be OK, even the first page is */
/* already unmapped. */
@@ -1095,6 +1284,7 @@ static void test_munmap_end_freed(bool seal)
unsigned long page_size = getpagesize();
unsigned long size = 4 * page_size;
int ret;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1111,9 +1301,14 @@ static void test_munmap_end_freed(bool seal)
/* unmap all pages. */
ret = sys_munmap(ptr, size);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(!ret);
REPORT_TEST_PASS();
@@ -1144,12 +1339,15 @@ static void test_munmap_middle_freed(bool seal)
ret = sys_munmap(ptr, size);
if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
size = get_vma_size(ptr, &prot);
FAIL_TEST_IF_FALSE(size == page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
size = get_vma_size(ptr + page_size * 3, &prot);
FAIL_TEST_IF_FALSE(size == page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else {
FAIL_TEST_IF_FALSE(!ret);
@@ -1170,6 +1368,7 @@ static void test_seal_mremap_shrink(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1184,6 +1383,10 @@ static void test_seal_mremap_shrink(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == (void *) MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else {
FAIL_TEST_IF_FALSE(ret2 != (void *) MAP_FAILED);
@@ -1199,6 +1402,7 @@ static void test_seal_mremap_expand(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1216,6 +1420,10 @@ static void test_seal_mremap_expand(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else {
FAIL_TEST_IF_FALSE(ret2 == ptr);
@@ -1231,6 +1439,7 @@ static void test_seal_mremap_move(bool seal)
unsigned long size = page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1249,10 +1458,12 @@ static void test_seal_mremap_move(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
- } else {
- FAIL_TEST_IF_FALSE(ret2 != MAP_FAILED);
- }
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
+ FAIL_TEST_IF_FALSE(ret2 != MAP_FAILED);
REPORT_TEST_PASS();
}
@@ -1264,6 +1475,7 @@ static void test_seal_mmap_overwrite_prot(bool seal)
unsigned long size = page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1279,6 +1491,10 @@ static void test_seal_mmap_overwrite_prot(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else
FAIL_TEST_IF_FALSE(ret2 == ptr);
@@ -1292,6 +1508,7 @@ static void test_seal_mmap_expand(bool seal)
unsigned long size = 12 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1310,6 +1527,10 @@ static void test_seal_mmap_expand(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 8 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else
FAIL_TEST_IF_FALSE(ret2 == ptr);
@@ -1323,6 +1544,7 @@ static void test_seal_mmap_shrink(bool seal)
unsigned long size = 12 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1338,6 +1560,10 @@ static void test_seal_mmap_shrink(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 12 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else
FAIL_TEST_IF_FALSE(ret2 == ptr);
@@ -1352,6 +1578,7 @@ static void test_seal_mremap_shrink_fixed(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1369,6 +1596,10 @@ static void test_seal_mremap_shrink_fixed(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else
FAIL_TEST_IF_FALSE(ret2 == newAddr);
@@ -1383,6 +1614,7 @@ static void test_seal_mremap_expand_fixed(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(page_size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1400,6 +1632,10 @@ static void test_seal_mremap_expand_fixed(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(newAddr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else
FAIL_TEST_IF_FALSE(ret2 == newAddr);
@@ -1414,6 +1650,7 @@ static void test_seal_mremap_move_fixed(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1430,6 +1667,10 @@ static void test_seal_mremap_move_fixed(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(newAddr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else
FAIL_TEST_IF_FALSE(ret2 == newAddr);
@@ -1443,6 +1684,7 @@ static void test_seal_mremap_move_fixed_zero(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1460,9 +1702,12 @@ static void test_seal_mremap_move_fixed_zero(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
- } else {
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
FAIL_TEST_IF_FALSE(ret2 == 0);
- }
REPORT_TEST_PASS();
}
@@ -1474,6 +1719,7 @@ static void test_seal_mremap_move_dontunmap(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1488,6 +1734,10 @@ static void test_seal_mremap_move_dontunmap(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else {
/* kernel will allocate a new address */
FAIL_TEST_IF_FALSE(ret2 != MAP_FAILED);
@@ -1503,6 +1753,7 @@ static void test_seal_mremap_move_dontunmap_anyaddr(bool seal)
unsigned long size = 4 * page_size;
int ret;
void *ret2;
+ int prot;
setup_single_address(size, &ptr);
FAIL_TEST_IF_FALSE(ptr != (void *)-1);
@@ -1529,6 +1780,10 @@ static void test_seal_mremap_move_dontunmap_anyaddr(bool seal)
if (seal) {
FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
} else {
/* remap success and return ptr2 */
FAIL_TEST_IF_FALSE(ret2 == ptr2);
@@ -1690,9 +1945,10 @@ static void test_seal_discard_ro_anon_on_pkey(bool seal)
/* sealing will take effect if PKRU deny write. */
set_pkey(pkey, PKEY_DISABLE_WRITE);
ret = sys_madvise(ptr, size, MADV_DONTNEED);
- if (seal)
+ if (seal) {
FAIL_TEST_IF_FALSE(ret < 0);
- else
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+ } else
FAIL_TEST_IF_FALSE(!ret);
/* base seal still apply. */
@@ -1864,6 +2120,413 @@ static void test_seal_madvise_nodiscard(bool seal)
REPORT_TEST_PASS();
}
+static void test_seal_discard_madvise_advice(void)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 4 * page_size;
+ int ret;
+ int sealed_advice[] = {MADV_FREE, MADV_DONTNEED,
+ MADV_DONTNEED_LOCKED, MADV_REMOVE,
+ MADV_DONTFORK, MADV_WIPEONFORK};
+ int size_sealed_advice = sizeof(sealed_advice) / sizeof(int);
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ ret = seal_single_address(ptr, size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ for (int i = 0; i < size_sealed_advice; i++) {
+ ret = sys_madvise(ptr, size, sealed_advice[i]);
+ FAIL_TEST_IF_FALSE(ret < 0);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+ }
+
+ REPORT_TEST_PASS();
+}
+
+static void test_munmap_free_multiple_ranges(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 8 * page_size;
+ int ret;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ /* unmap one page from beginning. */
+ ret = sys_munmap(ptr, page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ /* unmap one page from middle. */
+ ret = sys_munmap(ptr + 4 * page_size, page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr + page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 5 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+
+ /* seal the last page */
+ if (seal) {
+ ret = sys_mseal(ptr + 7 * page_size, page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr + 1 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 5 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 7 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+ }
+
+ /* munmap all 8 pages from beginning */
+ ret = sys_munmap(ptr, 8 * page_size);
+ if (seal) {
+ FAIL_TEST_IF_FALSE(ret);
+
+ size = get_vma_size(ptr + 1 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 3 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 5 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 7 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 1 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+ } else {
+ FAIL_TEST_IF_FALSE(!ret);
+
+ for (int i = 0; i < 8; i++) {
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 0);
+ }
+ }
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mmap_expand_seal_middle(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 12 * page_size;
+ int ret;
+ void *ret2;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+ /* ummap last 4 pages. */
+ ret = sys_munmap(ptr + 8 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 8 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ if (seal) {
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ /* use mmap to expand. */
+ ret2 = mmap(ptr, 12 * page_size, PROT_READ,
+ MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
+ if (seal) {
+ FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
+ FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mmap_shrink_seal_middle(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 12 * page_size;
+ int ret;
+ void *ret2;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ if (seal) {
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ /* use mmap to shrink. */
+ ret2 = mmap(ptr, 7 * page_size, PROT_READ,
+ MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
+ if (seal) {
+ FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+ } else
+ FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mmap_overwrite_addr(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = page_size;
+ int ret;
+ void *ret2;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ if (seal) {
+ ret = sys_mseal(ptr, size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ /* use mmap to change protection. */
+ ret2 = mmap(ptr, size, PROT_NONE,
+ MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+
+ FAIL_TEST_IF_FALSE(!(ret2 == MAP_FAILED));
+ FAIL_TEST_IF_FALSE(ret2 != ptr);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == page_size);
+ FAIL_TEST_IF_FALSE(prot == 0x4);
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_shrink_multiple_vmas(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 12 * page_size;
+ int ret;
+ void *ret2;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ ret = sys_mprotect(ptr + 4 * page_size, 4 * page_size, PROT_NONE);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ if (seal) {
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ ret2 = sys_mremap(ptr, 12 * page_size, 6 * page_size, 0, 0);
+ if (seal) {
+ FAIL_TEST_IF_FALSE(ret2 == (void *) MAP_FAILED);
+ FAIL_TEST_IF_FALSE(errno == EPERM);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ } else {
+ FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 2 * page_size);
+ }
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_expand_multiple_vmas(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 12 * page_size;
+ int ret;
+ void *ret2;
+ int prot;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ ret = sys_mprotect(ptr + 4 * page_size, 4 * page_size, PROT_NONE);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ /* ummap last 4 pages. */
+ ret = sys_munmap(ptr + 8 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ if (seal) {
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ ret2 = sys_mremap(ptr, 8 * page_size, 12 * page_size, 0, 0);
+ FAIL_TEST_IF_FALSE(ret2 == (void *) MAP_FAILED);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move_expand_multiple_vmas(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 12 * page_size;
+ int ret;
+ void *ret2;
+ int prot;
+ void *ptr2;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ setup_single_address(size, &ptr2);
+ FAIL_TEST_IF_FALSE(ptr2 != (void *)-1);
+
+ ret = sys_munmap(ptr2, 12 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ ret = sys_mprotect(ptr + 4 * page_size, 4 * page_size, PROT_NONE);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ /* ummap last 4 pages. */
+ ret = sys_munmap(ptr + 8 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ if (seal) {
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ /* move and expand cross VMA boundary will fail */
+ ret2 = sys_mremap(ptr, 8 * page_size, 10 * page_size, MREMAP_FIXED | MREMAP_MAYMOVE, ptr2);
+ FAIL_TEST_IF_FALSE(ret2 == (void *) MAP_FAILED);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+ REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move_shrink_multiple_vmas(bool seal)
+{
+ void *ptr;
+ unsigned long page_size = getpagesize();
+ unsigned long size = 12 * page_size;
+ int ret;
+ void *ret2;
+ int prot;
+ void *ptr2;
+
+ setup_single_address(size, &ptr);
+ FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+ setup_single_address(size, &ptr2);
+ FAIL_TEST_IF_FALSE(ptr2 != (void *)-1);
+
+ ret = sys_munmap(ptr2, 12 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ ret = sys_mprotect(ptr + 4 * page_size, 4 * page_size, PROT_NONE);
+ FAIL_TEST_IF_FALSE(!ret);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0);
+
+ if (seal) {
+ ret = sys_mseal(ptr + 4 * page_size, 4 * page_size);
+ FAIL_TEST_IF_FALSE(!ret);
+ }
+
+ /* move and shrink cross VMA boundary is NOK */
+ ret2 = sys_mremap(ptr, 12 * page_size, 8 * page_size, MREMAP_FIXED | MREMAP_MAYMOVE, ptr2);
+ FAIL_TEST_IF_FALSE(ret2 == (void *) MAP_FAILED);
+
+ size = get_vma_size(ptr, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 4);
+
+ size = get_vma_size(ptr + 4 * page_size, &prot);
+ FAIL_TEST_IF_FALSE(size == 4 * page_size);
+ FAIL_TEST_IF_FALSE(prot == 0);
+
+ REPORT_TEST_PASS();
+}
+
int main(int argc, char **argv)
{
bool test_seal = seal_support();
@@ -1876,7 +2539,15 @@ int main(int argc, char **argv)
if (!pkey_supported())
ksft_print_msg("PKEY not supported\n");
- ksft_set_plan(88);
+ /*
+ * possible reasons:
+ * - unable to read /proc/pid/maps
+ * - parsing error when reading /proc/pid/maps,e.g. len is not expected.
+ */
+ if (!get_vma_size_supported())
+ ksft_exit_skip("get_vma_size not supported\n");
+
+ ksft_set_plan(105);
test_seal_addseal();
test_seal_unmapped_start();
@@ -1985,5 +2656,26 @@ int main(int argc, char **argv)
test_seal_discard_ro_anon_on_pkey(false);
test_seal_discard_ro_anon_on_pkey(true);
+ test_seal_discard_madvise_advice();
+
+ test_munmap_free_multiple_ranges(false);
+ test_munmap_free_multiple_ranges(true);
+
+ test_seal_mmap_expand_seal_middle(false);
+ test_seal_mmap_expand_seal_middle(true);
+ test_seal_mmap_shrink_seal_middle(false);
+ test_seal_mmap_shrink_seal_middle(true);
+ test_seal_mmap_overwrite_addr(false);
+ test_seal_mmap_overwrite_addr(true);
+
+ test_seal_mremap_shrink_multiple_vmas(false);
+ test_seal_mremap_shrink_multiple_vmas(true);
+ test_seal_mremap_expand_multiple_vmas(false);
+ test_seal_mremap_expand_multiple_vmas(true);
+ test_seal_mremap_move_expand_multiple_vmas(false);
+ test_seal_mremap_move_expand_multiple_vmas(true);
+ test_seal_mremap_move_shrink_multiple_vmas(false);
+ test_seal_mremap_move_shrink_multiple_vmas(true);
+
ksft_finished();
}
--
2.46.0.295.g3b9ea8a38a-goog
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