1. 02 Mar, 2017 1 commit
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  3. 14 Nov, 2016 1 commit
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  7. 18 Jan, 2016 5 commits
  8. 22 Dec, 2015 1 commit
  9. 01 Dec, 2015 1 commit
    • Eric Dumazet's avatar
      net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA · 9cd3e072
      Eric Dumazet authored
      This patch is a cleanup to make following patch easier to
      from (struct socket)->flags to a (struct socket_wq)->flags
      to benefit from RCU protection in sock_wake_async()
      To ease backports, we rename both constants.
      Two new helpers, sk_set_bit(int nr, struct sock *sk)
      and sk_clear_bit(int net, struct sock *sk) are added so that
      following patch can change their implementation.
      Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  10. 30 Nov, 2015 1 commit
  11. 17 Nov, 2015 1 commit
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  13. 11 Apr, 2015 1 commit
  14. 02 Apr, 2015 1 commit
  15. 01 Apr, 2015 1 commit
  16. 25 Mar, 2015 1 commit
  17. 23 Mar, 2015 1 commit
  18. 02 Mar, 2015 1 commit
  19. 12 Feb, 2015 1 commit
  20. 11 Feb, 2015 2 commits
  21. 04 Feb, 2015 1 commit
    • Al Viro's avatar
      crypto: switch af_alg_make_sg() to iov_iter · 1d10eb2f
      Al Viro authored
      With that, all ->sendmsg() instances are converted to iov_iter primitives
      and are agnostic wrt the kind of iov_iter they are working with.
      So's the last remaining ->recvmsg() instance that wasn't kind-agnostic yet.
      All ->sendmsg() and ->recvmsg() advance ->msg_iter by the amount actually
      copied and none of them modifies the underlying iovec, etc.
      Cc: linux-crypto@vger.kernel.org
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
  22. 22 Dec, 2014 1 commit
  23. 09 Dec, 2014 1 commit
    • Al Viro's avatar
      put iov_iter into msghdr · c0371da6
      Al Viro authored
      Note that the code _using_ ->msg_iter at that point will be very
      unhappy with anything other than unshifted iovec-backed iov_iter.
      We still need to convert users to proper primitives.
      Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
  24. 02 Dec, 2014 1 commit
    • Stephan Mueller's avatar
      crypto: algif_skcipher - initialize upon init request · f26b7b80
      Stephan Mueller authored
      When using the algif_skcipher, the following call sequence causess a
      1. sendmsg with ALG_SET_OP and iov == NULL, iovlen == 0 (i.e
      initializing the cipher, but not sending data)
      2. sendmsg with msg->msg-controllen == 0 and iov != NULL (using the initalized
      cipher handle by sending data)
      In step 2, the cipher operation type (encryption or decryption) is reset
      to always decryption, because the local variable of enc is put into
      ctx->enc as ctx->user is still zero.
      The same applies when all send data is processed and ctx->used falls to
      zero followed by user space to send new data.
      This patch changes the behavior to only reset the cipher operation type
      (and the IV) if such configuration request is received.
      Signed-off-by: default avatarStephan Mueller <smueller@chronox.de>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
  25. 01 Dec, 2014 1 commit
  26. 28 Nov, 2014 1 commit
  27. 25 Nov, 2014 1 commit
    • Daniel Borkmann's avatar
      crypto: algif - add and use sock_kzfree_s() instead of memzero_explicit() · 79e88659
      Daniel Borkmann authored
      Commit e1bd95bf ("crypto: algif - zeroize IV buffer") and
      2a6af25b ("crypto: algif - zeroize message digest buffer")
      added memzero_explicit() calls on buffers that are later on
      passed back to sock_kfree_s().
      This is a discussed follow-up that, instead, extends the sock
      API and adds sock_kzfree_s(), which internally uses kzfree()
      instead of kfree() for passing the buffers back to slab.
      Having sock_kzfree_s() allows to keep the changes more minimal
      by just having a drop-in replacement instead of adding
      memzero_explicit() calls everywhere before sock_kfree_s().
      In kzfree(), the compiler is not allowed to optimize the memset()
      away and thus there's no need for memzero_explicit(). Both,
      sock_kfree_s() and sock_kzfree_s() are wrappers for
      __sock_kfree_s() and call into kfree() resp. kzfree(); here,
      __sock_kfree_s() needs to be explicitly inlined as we want the
      compiler to optimize the call and condition away and thus it
      produces e.g. on x86_64 the _same_ assembler output for
      sock_kfree_s() before and after, and thus also allows for
      avoiding code duplication.
      Cc: David S. Miller <davem@davemloft.net>
      Signed-off-by: default avatarDaniel Borkmann <dborkman@redhat.com>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
  28. 24 Nov, 2014 1 commit
  29. 12 Nov, 2014 1 commit
  30. 04 Sep, 2014 1 commit
  31. 29 Nov, 2013 1 commit
  32. 21 Nov, 2013 1 commit
    • Hannes Frederic Sowa's avatar
      net: rework recvmsg handler msg_name and msg_namelen logic · f3d33426
      Hannes Frederic Sowa authored
      This patch now always passes msg->msg_namelen as 0. recvmsg handlers must
      set msg_namelen to the proper size <= sizeof(struct sockaddr_storage)
      to return msg_name to the user.
      This prevents numerous uninitialized memory leaks we had in the
      recvmsg handlers and makes it harder for new code to accidentally leak
      uninitialized memory.
      Optimize for the case recvfrom is called with NULL as address. We don't
      need to copy the address at all, so set it to NULL before invoking the
      recvmsg handler. We can do so, because all the recvmsg handlers must
      cope with the case a plain read() is called on them. read() also sets
      msg_name to NULL.
      Also document these changes in include/linux/net.h as suggested by David
      Changes since RFC:
      Set msg->msg_name = NULL if user specified a NULL in msg_name but had a
      non-null msg_namelen in verify_iovec/verify_compat_iovec. This doesn't
      affect sendto as it would bail out earlier while trying to copy-in the
      address. It also more naturally reflects the logic by the callers of
      With this change in place I could remove "
      if (!uaddr || msg_sys->msg_namelen == 0)
      	msg->msg_name = NULL
      This change does not alter the user visible error logic as we ignore
      msg_namelen as long as msg_name is NULL.
      Also remove two unnecessary curly brackets in ___sys_recvmsg and change
      comments to netdev style.
      Cc: David Miller <davem@davemloft.net>
      Suggested-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
      Signed-off-by: default avatarHannes Frederic Sowa <hannes@stressinduktion.org>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
  33. 10 Apr, 2013 1 commit