mac80211: fix CCMP races

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Since we can process multiple packets at the
same time for different ACs, but the PN is
allocated from a single counter, we need to
use an atomic value there. Use atomic64_t to
make this cheaper on 64-bit platforms, other
platforms will support this through software
emulation, see lib/atomic64.c.

We also need to use an on-stack scratch buf
so that multiple packets won't corrupt each
others scratch buffers.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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This commit is contained in:

Johannes Berg 2011-07-06 21:59:39 +02:00 • committed by John W. Linville

parent 523b02ea23

commit aba83a0b30

4 changed files with 32 additions and 25 deletions

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14

net/mac80211/cfg.c

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6

net/mac80211/debugfs_key.c

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5

net/mac80211/key.h

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32

net/mac80211/wpa.c

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