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| author | David Gibson <david@gibson.dropbear.id.au> | 2024-11-14 14:33:09 +1100 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2024-11-14 19:00:38 +0100 |
| commit | b39760cc7d89e69c7fb12eccc3df3bd15e2d5665 (patch) | |
| tree | 108160846ba6cd58147468b642654d4d15c44a2f /tcp_vu.c | |
| parent | 71d5deed5eed3949ee09c5f0a53b4de0b09b4afc (diff) | |
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passt: Seed libc's pseudo random number generator
We have an upcoming case where we need pseudo-random numbers to scatter
timings, but we don't need cryptographically strong random numbers. libc's
built in random() is fine for this purpose, but we should seed it. Extend
secret_init() - the only current user of random numbers - to do this as
well as generating the SipHash secret. Using /dev/random for a PRNG seed
is probably overkill, but it's simple and we only do it once, so we might
as well.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'tcp_vu.c')
0 files changed, 0 insertions, 0 deletions