netdev - AF_ALG buggy with sendfile

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Message-ID: <CAJusiZVq3O1rok20HyYaoJDWxjtBdvMbDtjCif+sCyKPzpXMNA@mail.gmail.com>
Date:	Sun, 24 Nov 2013 09:21:57 -0800
From:	Shawn Landden <shawnlandden@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	netdev@...r.kernel.org, herbert@...dor.apana.org.au,
	linux-crypto@...r.kernel.org
Subject: AF_ALG buggy with sendfile

If I use sendfile() to send to a accept()ed AF_ALG socket set up for
"hash", I get the wrong
answer, if I read() and then write() I get the right answer. None of
the system calls return an error.

test case attached.

-- 

---
Shawn Landden
+1 360 389 3001 (SMS preferred)

View attachment "af_alg.c" of type "text/x-csrc" (976 bytes)