diff options
| author | Anton Kling <anton@kling.gg> | 2023-11-13 16:05:31 +0100 |
|---|---|---|
| committer | Anton Kling <anton@kling.gg> | 2023-11-13 16:05:31 +0100 |
| commit | 761f57a1b167abeda40c5cc0fce801a4230f2400 (patch) | |
| tree | 4ed5bc3c542ca0155f5a21d2d1dae0679db209a4 /kernel/arch/i386 | |
| parent | e7b5cb7ca649455b926d6e8494c8dd7d6aed9ad0 (diff) | |
Crypto: Implement fast insecure RNG for overwritting memory areas.
This is mainly done to test for uninitlalized memory and find bugs
faster. Therefore it does not need to be cryptographically secure or
perfectly uniform. Xoshiro256++ seems like a good fit.
Diffstat (limited to 'kernel/arch/i386')
| -rw-r--r-- | kernel/arch/i386/mmu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/arch/i386/mmu.c b/kernel/arch/i386/mmu.c index 2b6c0b5..4ac17da 100644 --- a/kernel/arch/i386/mmu.c +++ b/kernel/arch/i386/mmu.c @@ -36,7 +36,7 @@ void *ksbrk(size_t s) { // If there is no active pagedirectory we // just assume that the memory is // already mapped. - get_random((void *)rc, data_end - rc); + get_fast_insecure_random((void *)rc, data_end - rc); return (void *)rc; } // Determine whether we are approaching a unallocated table @@ -59,7 +59,7 @@ void *ksbrk(size_t s) { assert(((uintptr_t)rc % PAGE_SIZE) == 0); memset((void *)rc, 0x00, s); - get_random((void *)rc, data_end - rc); + get_fast_insecure_random((void *)rc, data_end - rc); return (void *)rc; } |