Eric Lee / smarc-fsl-linux-kernel

02 Nov, 2017

1 commit

  • b24413180   License cleanup: add SPDX GPL-2.0 license identifier to files with no license ... Browse Code »

    Many source files in the tree are missing licensing information, which
    makes it harder for compliance tools to determine the correct license.

    By default all files without license information are under the default
    license of the kernel, which is GPL version 2.

    Update the files which contain no license information with the 'GPL-2.0'
    SPDX license identifier. The SPDX identifier is a legally binding
    shorthand, which can be used instead of the full boiler plate text.

    This patch is based on work done by Thomas Gleixner and Kate Stewart and
    Philippe Ombredanne.

    How this work was done:

    Patches were generated and checked against linux-4.14-rc6 for a subset of
    the use cases:
    - file had no licensing information it it.
    - file was a */uapi/* one with no licensing information in it,
    - file was a */uapi/* one with existing licensing information,

    Further patches will be generated in subsequent months to fix up cases
    where non-standard license headers were used, and references to license
    had to be inferred by heuristics based on keywords.

    The analysis to determine which SPDX License Identifier to be applied to
    a file was done in a spreadsheet of side by side results from of the
    output of two independent scanners (ScanCode & Windriver) producing SPDX
    tag:value files created by Philippe Ombredanne. Philippe prepared the
    base worksheet, and did an initial spot review of a few 1000 files.

    The 4.13 kernel was the starting point of the analysis with 60,537 files
    assessed. Kate Stewart did a file by file comparison of the scanner
    results in the spreadsheet to determine which SPDX license identifier(s)
    to be applied to the file. She confirmed any determination that was not
    immediately clear with lawyers working with the Linux Foundation.

    Criteria used to select files for SPDX license identifier tagging was:
    - Files considered eligible had to be source code files.
    - Make and config files were included as candidates if they contained >5
    lines of source
    - File already had some variant of a license header in it (even if
    Reviewed-by: Philippe Ombredanne
    Reviewed-by: Thomas Gleixner
    Signed-off-by: Greg Kroah-Hartman

    Greg Kroah-Hartman
     

24 Mar, 2017

1 commit

  • 91b8270f2   Add a helper function to get socket cookie in eBPF ... Browse Code »

    Retrieve the socket cookie generated by sock_gen_cookie() from a sk_buff
    with a known socket. Generates a new cookie if one was not yet set.If
    the socket pointer inside sk_buff is NULL, 0 is returned. The helper
    function coud be useful in monitoring per socket networking traffic
    statistics and provide a unique socket identifier per namespace.

    Acked-by: Daniel Borkmann
    Acked-by: Alexei Starovoitov
    Acked-by: Willem de Bruijn
    Signed-off-by: Chenbo Feng
    Signed-off-by: David S. Miller

    Chenbo Feng
     

28 Jun, 2016

1 commit

  • 9a0fee2b5   sock_diag: do not broadcast raw socket destruction ... Browse Code »

    Diag intends to broadcast tcp_sk and udp_sk socket destruction.
    Testing sk->sk_protocol for IPPROTO_TCP/IPPROTO_UDP alone is not
    sufficient for this. Raw sockets can have the same type.

    Add a test for sk->sk_type.

    Fixes: eb4cb008529c ("sock_diag: define destruction multicast groups")
    Signed-off-by: Willem de Bruijn
    Signed-off-by: David S. Miller

    Willem de Bruijn
     

16 Dec, 2015

1 commit

16 Jun, 2015

1 commit

  • eb4cb0085   sock_diag: define destruction multicast groups ... Browse Code »

    These groups will contain socket-destruction events for
    AF_INET/AF_INET6, IPPROTO_TCP/IPPROTO_UDP.

    Near the end of socket destruction, a check for listeners is
    performed. In the presence of a listener, rather than completely
    cleanup the socket, a unit of work will be added to a private
    work queue which will first broadcast information about the socket
    and then finish the cleanup operation.

    Signed-off-by: Craig Gallek
    Acked-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Craig Gallek
     

12 Mar, 2015

1 commit

  • 33cf7c90f   net: add real socket cookies ... Browse Code »

    A long standing problem in netlink socket dumps is the use
    of kernel socket addresses as cookies.

    1) It is a security concern.

    2) Sockets can be reused quite quickly, so there is
    no guarantee a cookie is used once and identify
    a flow.

    3) request sock, establish sock, and timewait socks
    for a given flow have different cookies.

    Part of our effort to bring better TCP statistics requires
    to switch to a different allocator.

    In this patch, I chose to use a per network namespace 64bit generator,
    and to use it only in the case a socket needs to be dumped to netlink.
    (This might be refined later if needed)

    Note that I tried to carry cookies from request sock, to establish sock,
    then timewait sockets.

    Signed-off-by: Eric Dumazet
    Cc: Eric Salo
    Signed-off-by: David S. Miller

    Eric Dumazet
     

11 Mar, 2015

1 commit

25 Apr, 2014

1 commit

  • a53b72c83   net: Move the permission check in sock_diag_put_filterinfo to packet_diag_dump ... Browse Code »

    The permission check in sock_diag_put_filterinfo is wrong, and it is so removed
    from it's sources it is not clear why it is wrong. Move the computation
    into packet_diag_dump and pass a bool of the result into sock_diag_filterinfo.

    This does not yet correct the capability check but instead simply moves it to make
    it clear what is going on.

    Reported-by: Andy Lutomirski
    Signed-off-by: "Eric W. Biederman"
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

23 Apr, 2014

1 commit

30 Apr, 2013

1 commit

  • e8d9612c1   sock_diag: allow to dump bpf filters ... Browse Code »

    This patch allows to dump BPF filters attached to a socket with
    SO_ATTACH_FILTER.
    Note that we check CAP_SYS_ADMIN before allowing to dump this info.

    For now, only AF_PACKET sockets use this feature.

    Signed-off-by: Nicolas Dichtel
    Signed-off-by: David S. Miller

    Nicolas Dichtel
     

13 Oct, 2012

1 commit

17 Jul, 2012

1 commit

  • 51d7cccf0   net: make sock diag per-namespace ... Browse Code »

    Before this patch sock_diag works for init_net only and dumps
    information about sockets from all namespaces.

    This patch expands sock_diag for all name-spaces.
    It creates a netlink kernel socket for each netns and filters
    data during dumping.

    v2: filter accoding with netns in all places
    remove an unused variable.

    Cc: "David S. Miller"
    Cc: Alexey Kuznetsov
    Cc: James Morris
    Cc: Hideaki YOSHIFUJI
    Cc: Patrick McHardy
    Cc: Pavel Emelyanov
    CC: Eric Dumazet
    Cc: linux-kernel@vger.kernel.org
    Cc: netdev@vger.kernel.org
    Signed-off-by: Andrew Vagin
    Acked-by: Pavel Emelyanov
    Signed-off-by: David S. Miller

    Andrey Vagin
     

04 Jun, 2012

1 commit

26 Apr, 2012

1 commit

31 Dec, 2011

2 commits

17 Dec, 2011

2 commits

07 Dec, 2011

1 commit

  • d366477a5   sock_diag: Initial skeleton ... Browse Code »

    When receiving the SOCK_DIAG_BY_FAMILY message we have to find the
    handler for provided family and pass the nl message to it.

    This patch describes an infrastructure to work with such nandlers
    and implements stubs for AF_INET(6) ones.

    Signed-off-by: Pavel Emelyanov
    Signed-off-by: David S. Miller

    Pavel Emelyanov