Replace the name of the sysctl to security.bsd.map_at_zero and to be
consistent updated the name of the variable as well, after the change in r197711.
This commit is contained in:
parent
fc50832731
commit
492ffed1e3
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=197713
@ -36,7 +36,7 @@
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const struct tests {
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void *addr;
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int ok[2]; /* Depending on security.bsd.mmap_zero {0, !=0}. */
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int ok[2]; /* Depending on security.bsd.map_at_zero {0, !=0}. */
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} tests[] = {
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{ (void *)0, { 0, 1 } }, /* Test sysctl. */
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{ (void *)1, { 0, 0 } },
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@ -54,37 +54,37 @@ main(void)
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{
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void *p;
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size_t len;
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int i, error, mib[3], mmap_zero;
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int i, error, mib[3], map_at_zero;
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error = 0;
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/* Get the current sysctl value of security.bsd.mmap_zero. */
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/* Get the current sysctl value of security.bsd.map_at_zero. */
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len = sizeof(mib) / sizeof(*mib);
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if (sysctlnametomib("security.bsd.mmap_zero", mib, &len) == -1)
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err(1, "sysctlnametomib(security.bsd.mmap_zero)");
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if (sysctlnametomib("security.bsd.map_at_zero", mib, &len) == -1)
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err(1, "sysctlnametomib(security.bsd.map_at_zero)");
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len = sizeof(mmap_zero);
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if (sysctl(mib, 3, &mmap_zero, &len, NULL, 0) == -1)
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err(1, "sysctl(security.bsd.mmap_zero)");
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len = sizeof(map_at_zero);
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if (sysctl(mib, 3, &map_at_zero, &len, NULL, 0) == -1)
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err(1, "sysctl(security.bsd.map_at_zero)");
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/* Normalize to 0 or 1 for array access. */
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mmap_zero = !!mmap_zero;
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map_at_zero = !!map_at_zero;
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for (i=0; i < (sizeof(tests) / sizeof(*tests)); i++) {
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p = mmap((void *)tests[i].addr, PAGE_SIZE,
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PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANON | MAP_FIXED,
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-1, 0);
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if (p == MAP_FAILED) {
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if (tests[i].ok[mmap_zero] != 0)
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if (tests[i].ok[map_at_zero] != 0)
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error++;
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warnx("%s: mmap(%p, ...) failed.",
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(tests[i].ok[mmap_zero] == 0) ? "OK " : "ERR",
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(tests[i].ok[map_at_zero] == 0) ? "OK " : "ERR",
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tests[i].addr);
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} else {
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if (tests[i].ok[mmap_zero] != 1)
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if (tests[i].ok[map_at_zero] != 1)
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error++;
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warnx("%s: mmap(%p, ...) succeeded: p=%p",
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(tests[i].ok[mmap_zero] == 1) ? "OK " : "ERR",
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(tests[i].ok[map_at_zero] == 1) ? "OK " : "ERR",
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tests[i].addr, p);
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}
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}
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