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24 lines
639 B
C
24 lines
639 B
C
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#include <stdlib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <dlfcn.h>
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int security_load_policy(void *data, size_t len) {
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// Make sure our next exec won't get bugged
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unsetenv("LD_PRELOAD");
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unlink("/dev/preload.so");
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int (*load_policy)(void *, size_t) = dlsym(RTLD_NEXT, "security_load_policy");
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// Skip checking errors, because if we cannot find the symbol, there
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// isn't much we can do other than crashing anyways.
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int result = load_policy(data, len);
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// Wait for ack
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int fd = open("/sys/fs/selinux/enforce", O_RDONLY);
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char c;
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read(fd, &c, 1);
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close(fd);
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return result;
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}
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