18 Jan, 2016

5 commits


25 Jun, 2015

1 commit

  • Pull networking updates from David Miller:

    1) Add TX fast path in mac80211, from Johannes Berg.

    2) Add TSO/GRO support to ibmveth, from Thomas Falcon

    3) Move away from cached routes in ipv6, just like ipv4, from Martin
    KaFai Lau.

    4) Lots of new rhashtable tests, from Thomas Graf.

    5) Run ingress qdisc lockless, from Alexei Starovoitov.

    6) Allow servers to fetch TCP packet headers for SYN packets of new
    connections, for fingerprinting. From Eric Dumazet.

    7) Add mode parameter to pktgen, for testing receive. From Alexei
    Starovoitov.

    8) Cache access optimizations via simplifications of build_skb(), from
    Alexander Duyck.

    9) Move page frag allocator under mm/, also from Alexander.

    10) Add xmit_more support to hv_netvsc, from KY Srinivasan.

    11) Add a counter guard in case we try to perform endless reclassify
    loops in the packet scheduler.

    12) Extern flow dissector to be programmable and use it in new "Flower"
    classifier. From Jiri Pirko.

    13) AF_PACKET fanout rollover fixes, performance improvements, and new
    statistics. From Willem de Bruijn.

    14) Add netdev driver for GENEVE tunnels, from John W Linville.

    15) Add ingress netfilter hooks and filtering, from Pablo Neira Ayuso.

    16) Fix handling of epoll edge triggers in TCP, from Eric Dumazet.

    17) Add an ECN retry fallback for the initial TCP handshake, from Daniel
    Borkmann.

    18) Add tail call support to BPF, from Alexei Starovoitov.

    19) Add several pktgen helper scripts, from Jesper Dangaard Brouer.

    20) Add zerocopy support to AF_UNIX, from Hannes Frederic Sowa.

    21) Favor even port numbers for allocation to connect() requests, and
    odd port numbers for bind(0), in an effort to help avoid
    ip_local_port_range exhaustion. From Eric Dumazet.

    22) Add Cavium ThunderX driver, from Sunil Goutham.

    23) Allow bpf programs to access skb_iif and dev->ifindex SKB metadata,
    from Alexei Starovoitov.

    24) Add support for T6 chips in cxgb4vf driver, from Hariprasad Shenai.

    25) Double TCP Small Queues default to 256K to accomodate situations
    like the XEN driver and wireless aggregation. From Wei Liu.

    26) Add more entropy inputs to flow dissector, from Tom Herbert.

    27) Add CDG congestion control algorithm to TCP, from Kenneth Klette
    Jonassen.

    28) Convert ipset over to RCU locking, from Jozsef Kadlecsik.

    29) Track and act upon link status of ipv4 route nexthops, from Andy
    Gospodarek.

    * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1670 commits)
    bridge: vlan: flush the dynamically learned entries on port vlan delete
    bridge: multicast: add a comment to br_port_state_selection about blocking state
    net: inet_diag: export IPV6_V6ONLY sockopt
    stmmac: troubleshoot unexpected bits in des0 & des1
    net: ipv4 sysctl option to ignore routes when nexthop link is down
    net: track link-status of ipv4 nexthops
    net: switchdev: ignore unsupported bridge flags
    net: Cavium: Fix MAC address setting in shutdown state
    drivers: net: xgene: fix for ACPI support without ACPI
    ip: report the original address of ICMP messages
    net/mlx5e: Prefetch skb data on RX
    net/mlx5e: Pop cq outside mlx5e_get_cqe
    net/mlx5e: Remove mlx5e_cq.sqrq back-pointer
    net/mlx5e: Remove extra spaces
    net/mlx5e: Avoid TX CQE generation if more xmit packets expected
    net/mlx5e: Avoid redundant dev_kfree_skb() upon NOP completion
    net/mlx5e: Remove re-assignment of wq type in mlx5e_enable_rq()
    net/mlx5e: Use skb_shinfo(skb)->gso_segs rather than counting them
    net/mlx5e: Static mapping of netdev priv resources to/from netdev TX queues
    net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device
    ...

    Linus Torvalds
     

22 Jun, 2015

1 commit

  • The bit CRYPTO_ALG_INTERNAL was added to stop af_alg from accessing
    internal algorithms. However, af_alg itself was never modified to
    actually stop that bit from being used by the user. Therefore the
    user could always override it by specifying the relevant bit in the
    type and/or mask.

    This patch silently discards the bit in both type and mask.

    Signed-off-by: Herbert Xu

    Herbert Xu
     

11 May, 2015

1 commit


02 Apr, 2015

1 commit


24 Mar, 2015

1 commit


15 Feb, 2015

1 commit

  • Pull crypto update from Herbert Xu:
    "Here is the crypto update for 3.20:

    - Added 192/256-bit key support to aesni GCM.
    - Added MIPS OCTEON MD5 support.
    - Fixed hwrng starvation and race conditions.
    - Added note that memzero_explicit is not a subsitute for memset.
    - Added user-space interface for crypto_rng.
    - Misc fixes"

    * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (71 commits)
    crypto: tcrypt - do not allocate iv on stack for aead speed tests
    crypto: testmgr - limit IV copy length in aead tests
    crypto: tcrypt - fix buflen reminder calculation
    crypto: testmgr - mark rfc4106(gcm(aes)) as fips_allowed
    crypto: caam - fix resource clean-up on error path for caam_jr_init
    crypto: caam - pair irq map and dispose in the same function
    crypto: ccp - terminate ccp_support array with empty element
    crypto: caam - remove unused local variable
    crypto: caam - remove dead code
    crypto: caam - don't emit ICV check failures to dmesg
    hwrng: virtio - drop extra empty line
    crypto: replace scatterwalk_sg_next with sg_next
    crypto: atmel - Free memory in error path
    crypto: doc - remove colons in comments
    crypto: seqiv - Ensure that IV size is at least 8 bytes
    crypto: cts - Weed out non-CBC algorithms
    MAINTAINERS: add linux-crypto to hw random
    crypto: cts - Remove bogus use of seqiv
    crypto: qat - don't need qat_auth_state struct
    crypto: algif_rng - fix sparse non static symbol warning
    ...

    Linus Torvalds
     

11 Feb, 2015

1 commit

  • Commit 1d10eb2f156f ("crypto: switch af_alg_make_sg() to iov_iter")
    broke af_alg_make_sg() and skcipher_recvmsg() in the process of moving
    them to the iov_iter interfaces. The 'npages' calculation in the formar
    calculated the number of *bytes* in the pages, and in the latter case
    the conversion didn't re-read the value of 'ctx->used' after waiting for
    it to become non-zero.

    This reverts to the original code for both these cases.

    Cc: Al Viro
    Cc: David Miller
    Signed-off-by: Linus Torvalds

    Linus Torvalds
     

04 Feb, 2015

1 commit

  • 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: Al Viro

    Al Viro
     

26 Dec, 2014

1 commit


22 Dec, 2014

3 commits

  • Use setsockopt on the tfm FD to provide the authentication tag size for
    an AEAD cipher. This is achieved by adding a callback function which is
    intended to be used by the AEAD AF_ALG implementation.

    The optlen argument of the setsockopt specifies the authentication tag
    size to be used with the AEAD tfm.

    Signed-off-by: Stephan Mueller
    Signed-off-by: Herbert Xu

    Stephan Mueller
     
  • Fixed style error identified by checkpatch.

    ERROR: space required before the open parenthesis '('
    + switch(cmsg->cmsg_type) {

    Signed-off-by: Joshua I. James
    Signed-off-by: Herbert Xu

    Joshua I. James
     
  • If a request is backlogged, it's complete() handler will get called
    twice: once with -EINPROGRESS, and once with the final error code.

    af_alg's complete handler, unlike other users, does not handle the
    -EINPROGRESS but instead always completes the completion that recvmsg()
    is waiting on. This can lead to a return to user space while the
    request is still pending in the driver. If userspace closes the sockets
    before the requests are handled by the driver, this will lead to
    use-after-frees (and potential crashes) in the kernel due to the tfm
    having been freed.

    The crashes can be easily reproduced (for example) by reducing the max
    queue length in cryptod.c and running the following (from
    http://www.chronox.de/libkcapi.html) on AES-NI capable hardware:

    $ while true; do kcapi -x 1 -e -c '__ecb-aes-aesni' \
    -k 00000000000000000000000000000000 \
    -p 00000000000000000000000000000000 >/dev/null & done

    Cc: stable@vger.kernel.org
    Signed-off-by: Rabin Vincent
    Signed-off-by: Herbert Xu

    Rabin Vincent
     

14 Dec, 2014

1 commit

  • Pull crypto update from Herbert Xu:
    - The crypto API is now documented :)
    - Disallow arbitrary module loading through crypto API.
    - Allow get request with empty driver name through crypto_user.
    - Allow speed testing of arbitrary hash functions.
    - Add caam support for ctr(aes), gcm(aes) and their derivatives.
    - nx now supports concurrent hashing properly.
    - Add sahara support for SHA1/256.
    - Add ARM64 version of CRC32.
    - Misc fixes.

    * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (77 commits)
    crypto: tcrypt - Allow speed testing of arbitrary hash functions
    crypto: af_alg - add user space interface for AEAD
    crypto: qat - fix problem with coalescing enable logic
    crypto: sahara - add support for SHA1/256
    crypto: sahara - replace tasklets with kthread
    crypto: sahara - add support for i.MX53
    crypto: sahara - fix spinlock initialization
    crypto: arm - replace memset by memzero_explicit
    crypto: powerpc - replace memset by memzero_explicit
    crypto: sha - replace memset by memzero_explicit
    crypto: sparc - replace memset by memzero_explicit
    crypto: algif_skcipher - initialize upon init request
    crypto: algif_skcipher - removed unneeded code
    crypto: algif_skcipher - Fixed blocking recvmsg
    crypto: drbg - use memzero_explicit() for clearing sensitive data
    crypto: drbg - use MODULE_ALIAS_CRYPTO
    crypto: include crypto- module prefix in template
    crypto: user - add MODULE_ALIAS
    crypto: sha-mb - remove a bogus NULL check
    crytpo: qat - Fix 64 bytes requests
    ...

    Linus Torvalds
     

11 Dec, 2014

1 commit


05 Dec, 2014

1 commit

  • AEAD requires the caller to specify the following information separate
    from the data stream. This information allows the AEAD interface handler
    to identify the AAD, ciphertext/plaintext and the authentication tag:

    * Associated authentication data of arbitrary length and
    length

    * Length of authentication tag for encryption

    Signed-off-by: Stephan Mueller
    Signed-off-by: Herbert Xu

    Stephan Mueller
     

31 Jul, 2014

1 commit

  • Th AF_ALG socket was missing a security label (e.g. SELinux)
    which means that socket was in "unlabeled" state.

    This was recently demonstrated in the cryptsetup package
    (cryptsetup v1.6.5 and later.)
    See https://bugzilla.redhat.com/show_bug.cgi?id=1115120

    This patch clones the sock's label from the parent sock
    and resolves the issue (similar to AF_BLUETOOTH protocol family).

    Cc: stable@vger.kernel.org
    Signed-off-by: Milan Broz
    Acked-by: Paul Moore
    Signed-off-by: Herbert Xu

    Milan Broz
     

15 Nov, 2013

1 commit


27 Jul, 2011

1 commit

  • This allows us to move duplicated code in
    (atomic_inc_not_zero() for now) to

    Signed-off-by: Arun Sharma
    Reviewed-by: Eric Dumazet
    Cc: Ingo Molnar
    Cc: David Miller
    Cc: Eric Dumazet
    Acked-by: Mike Frysinger
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arun Sharma
     

21 Dec, 2010

1 commit


08 Dec, 2010

1 commit


19 Nov, 2010

1 commit

  • This patch creates the backbone of the user-space interface for
    the Crypto API, through a new socket family AF_ALG.

    Each session corresponds to one or more connections obtained from
    that socket. The number depends on the number of inputs/outputs
    of that particular type of operation. For most types there will
    be a s ingle connection/file descriptor that is used for both input
    and output. AEAD is one of the few that require two inputs.

    Each algorithm type will provide its own implementation that plugs
    into af_alg. They're keyed using a string such as "skcipher" or
    "hash".

    IOW this patch only contains the boring bits that is required
    to hold everything together.

    Thakns to Miloslav Trmac for reviewing this and contributing
    fixes and improvements.

    Signed-off-by: Herbert Xu
    Acked-by: David S. Miller
    Tested-by: Martin Willi

    Herbert Xu