cvs commit: src/sys/netgraph ng_socket.c

[Gleb Smirnoff]

glebius     2005-11-25 14:26:40 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/netgraph         ng_socket.c 
  Log:
  MFC 1.70:
    Fix several races between socket closure and node/hook
    destruction:
      - Backout 1.62, since it doesn't fix all possible
      problems.
      - Upon node creation, put an additional reference on node.
      - Add a mutex and refcounter to struct ngsock. Netgraph node,
        control socket and data socket all count as references.
      - Introduce ng_socket_free_priv() which removes one reference
        from ngsock, and frees it when all references has gone.
      - No direct pointers between pcbs and node, all pointing
        is done via struct ngsock and protected with mutex.
  
  Revision  Changes    Path
  1.67.2.4  +100 -80   src/sys/netgraph/ng_socket.c