1. 18 6月, 2008 1 次提交
    • E
      udp: sk_drops handling · cb61cb9b
      Eric Dumazet 提交于
      In commits 33c732c3 ([IPV4]: Add raw
      drops counter) and a92aa318 ([IPV6]:
      Add raw drops counter), Wang Chen added raw drops counter for
      /proc/net/raw & /proc/net/raw6
      
      This patch adds this capability to UDP sockets too (/proc/net/udp &
      /proc/net/udp6).
      
      This means that 'RcvbufErrors' errors found in /proc/net/snmp can be also
      be examined for each udp socket.
      
      # grep Udp: /proc/net/snmp
      Udp: InDatagrams NoPorts InErrors OutDatagrams RcvbufErrors SndbufErrors
      Udp: 23971006 75 899420 16390693 146348 0
      
      # cat /proc/net/udp
       sl  local_address rem_address   st tx_queue rx_queue tr tm->when retrnsmt  ---
      uid  timeout inode ref pointer drops
       75: 00000000:02CB 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
        0        0 2358 2 ffff81082a538c80 0
      111: 00000000:006F 00000000:0000 07 00000000:00000000 00:00000000 00000000  ---
        0        0 2286 2 ffff81042dd35c80 146348
      
      In this example, only port 111 (0x006F) was flooded by messages that
      user program could not read fast enough. 146348 messages were lost.
      Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      cb61cb9b
  2. 17 6月, 2008 1 次提交
  3. 15 6月, 2008 1 次提交
  4. 12 6月, 2008 1 次提交
  5. 05 6月, 2008 1 次提交
    • D
      raw: Raw socket leak. · 22dd4850
      Denis V. Lunev 提交于
      The program below just leaks the raw kernel socket
      
      int main() {
              int fd = socket(PF_INET, SOCK_RAW, IPPROTO_UDP);
              struct sockaddr_in addr;
      
              memset(&addr, 0, sizeof(addr));
              inet_aton("127.0.0.1", &addr.sin_addr);
              addr.sin_family = AF_INET;
              addr.sin_port = htons(2048);
              sendto(fd,  "a", 1, MSG_MORE, &addr, sizeof(addr));
              return 0;
      }
      
      Corked packet is allocated via sock_wmalloc which holds the owner socket,
      so one should uncork it and flush all pending data on close. Do this in the
      same way as in UDP.
      Signed-off-by: NDenis V. Lunev <den@openvz.org>
      Acked-by: NAlexey Kuznetsov <kuznet@ms2.inr.ac.ru>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      22dd4850
  6. 13 5月, 2008 1 次提交
  7. 01 4月, 2008 1 次提交
  8. 29 3月, 2008 1 次提交
  9. 26 3月, 2008 4 次提交
  10. 25 3月, 2008 2 次提交
  11. 23 3月, 2008 1 次提交
  12. 18 3月, 2008 1 次提交
  13. 01 2月, 2008 4 次提交
  14. 29 1月, 2008 15 次提交
  15. 09 1月, 2008 1 次提交
  16. 07 11月, 2007 1 次提交
  17. 11 10月, 2007 3 次提交
    • P
      [NET]: Make core networking code use seq_open_private · cf7732e4
      Pavel Emelyanov 提交于
      This concerns the ipv4 and ipv6 code mostly, but also the netlink
      and unix sockets.
      
      The netlink code is an example of how to use the __seq_open_private()
      call - it saves the net namespace on this private.
      Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      cf7732e4
    • D
      [IPV4]: Add ICMPMsgStats MIB (RFC 4293) · 96793b48
      David L Stevens 提交于
      Background: RFC 4293 deprecates existing individual, named ICMP
      type counters to be replaced with the ICMPMsgStatsTable. This table
      includes entries for both IPv4 and IPv6, and requires counting of all
      ICMP types, whether or not the machine implements the type.
      
      These patches "remove" (but not really) the existing counters, and
      replace them with the ICMPMsgStats tables for v4 and v6.
      It includes the named counters in the /proc places they were, but gets the
      values for them from the new tables. It also counts packets generated
      from raw socket output (e.g., OutEchoes, MLD queries, RA's from
      radvd, etc).
      
      Changes:
      1) create icmpmsg_statistics mib
      2) create icmpv6msg_statistics mib
      3) modify existing counters to use these
      4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types
              listed by number for easy SNMP parsing
      5) modify /proc/net/snmp printing for "Icmp" to get the named data
              from new counters.
      Signed-off-by: NDavid L Stevens <dlstevens@us.ibm.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      96793b48
    • E
      [NET]: Make /proc/net per network namespace · 457c4cbc
      Eric W. Biederman 提交于
      This patch makes /proc/net per network namespace.  It modifies the global
      variables proc_net and proc_net_stat to be per network namespace.
      The proc_net file helpers are modified to take a network namespace argument,
      and all of their callers are fixed to pass &init_net for that argument.
      This ensures that all of the /proc/net files are only visible and
      usable in the initial network namespace until the code behind them
      has been updated to be handle multiple network namespaces.
      
      Making /proc/net per namespace is necessary as at least some files
      in /proc/net depend upon the set of network devices which is per
      network namespace, and even more files in /proc/net have contents
      that are relevant to a single network namespace.
      Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      457c4cbc
新手
引导
客服 返回
顶部