diff options
| author |   markus <markus@openbsd.org> | 2002-04-01 20:42:18 +0000 |
|---|---|---|
| committer | markus <markus@openbsd.org> | 2002-04-01 20:42:18 +0000 |
| commit | 636a437837c047882ec7d522800e3b1a6b418bf1 (patch) | |
| tree | 6a47a1d7e69051cbdd41baf6b8191660a44a1edd | |
| parent | Missing splx in suser() check. (diff) | |
| download | wireguard-openbsd-636a437837c047882ec7d522800e3b1a6b418bf1.tar.xz wireguard-openbsd-636a437837c047882ec7d522800e3b1a6b418bf1.zip | |
always check for bad IVs
| -rw-r--r-- | sys/dev/ic/if_wi.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/sys/dev/ic/if_wi.c b/sys/dev/ic/if_wi.c index 25cabc8ca39..6bc68d0172a 100644 --- a/sys/dev/ic/if_wi.c +++ b/sys/dev/ic/if_wi.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_wi.c,v 1.37 2002/04/01 20:38:36 millert Exp $ */ +/* $OpenBSD: if_wi.c,v 1.38 2002/04/01 20:42:18 markus Exp $ */ /* * Copyright (c) 1997, 1998, 1999 @@ -124,7 +124,7 @@ u_int32_t widebug = WIDEBUG; #if !defined(lint) && !defined(__OpenBSD__) static const char rcsid[] = - "$OpenBSD: if_wi.c,v 1.37 2002/04/01 20:38:36 millert Exp $"; + "$OpenBSD: if_wi.c,v 1.38 2002/04/01 20:42:18 markus Exp $"; #endif /* lint */ #ifdef foo @@ -1585,15 +1585,15 @@ wi_do_hostencrypt(struct wi_softc *sc, caddr_t buf, int len) if (!sc->wi_icv_flag) { sc->wi_icv = arc4random(); sc->wi_icv_flag++; - } else if (sc->wi_icv >= 0x03ff00 && - (sc->wi_icv & 0xf8ff00) == 0x00ff00) { - /* - * Skip 'bad' IVs from Fluhrer/Mantin/Shamir: - * (B, 255, N) with 3 <= B < 8 - */ - sc->wi_icv += 0x000100; } else sc->wi_icv++; + /* + * Skip 'bad' IVs from Fluhrer/Mantin/Shamir: + * (B, 255, N) with 3 <= B < 8 + */ + if (sc->wi_icv >= 0x03ff00 && + (sc->wi_icv & 0xf8ff00) == 0x00ff00) + sc->wi_icv += 0x000100; /* prepend 24bit IV to tx key, byte order does not matter */ key[0] = sc->wi_icv >> 16; |