cvs commit: src/sys/netgraph ng_socket.c

Gleb Smirnoff glebius at
Fri Nov 25 14:26:41 GMT 2005

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

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/netgraph         ng_socket.c 
  MFC 1.70:
    Fix several races between socket closure and node/hook
      - Backout 1.62, since it doesn't fix all possible
      - 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  +100 -80   src/sys/netgraph/ng_socket.c

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