1. 26 5月, 2013 1 次提交
    • L
      net: ipv6: Add IPv6 support to the ping socket. · 6d0bfe22
      Lorenzo Colitti 提交于
      This adds the ability to send ICMPv6 echo requests without a
      raw socket. The equivalent ability for ICMPv4 was added in
      2011.
      
      Instead of having separate code paths for IPv4 and IPv6, make
      most of the code in net/ipv4/ping.c dual-stack and only add a
      few IPv6-specific bits (like the protocol definition) to a new
      net/ipv6/ping.c. Hopefully this will reduce divergence and/or
      duplication of bugs in the future.
      
      Caveats:
      
      - Setting options via ancillary data (e.g., using IPV6_PKTINFO
        to specify the outgoing interface) is not yet supported.
      - There are no separate security settings for IPv4 and IPv6;
        everything is controlled by /proc/net/ipv4/ping_group_range.
      - The proc interface does not yet display IPv6 ping sockets
        properly.
      
      Tested with a patched copy of ping6 and using raw socket calls.
      Compiles and works with all of CONFIG_IPV6={n,m,y}.
      Signed-off-by: NLorenzo Colitti <lorenzo@google.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6d0bfe22