[NET]: Add a network namespace parameter to struct sock
Sockets need to get a reference to their network namespace, or possibly a simple hold if someone registers on the network namespace notifier and will free the sockets when the namespace is going to be destroyed. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -115,6 +115,7 @@ struct inet_timewait_sock {
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#define tw_refcnt __tw_common.skc_refcnt
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#define tw_hash __tw_common.skc_hash
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#define tw_prot __tw_common.skc_prot
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#define tw_net __tw_common.skc_net
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volatile unsigned char tw_substate;
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/* 3 bits hole, try to pack */
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unsigned char tw_rcv_wscale;
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@ -105,6 +105,7 @@ struct proto;
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* @skc_refcnt: reference count
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* @skc_hash: hash value used with various protocol lookup tables
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* @skc_prot: protocol handlers inside a network family
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* @skc_net: reference to the network namespace of this socket
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*
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* This is the minimal network layer representation of sockets, the header
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* for struct sock and struct inet_timewait_sock.
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@ -119,6 +120,7 @@ struct sock_common {
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atomic_t skc_refcnt;
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unsigned int skc_hash;
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struct proto *skc_prot;
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struct net *skc_net;
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};
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/**
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@ -195,6 +197,7 @@ struct sock {
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#define sk_refcnt __sk_common.skc_refcnt
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#define sk_hash __sk_common.skc_hash
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#define sk_prot __sk_common.skc_prot
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#define sk_net __sk_common.skc_net
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unsigned char sk_shutdown : 2,
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sk_no_check : 2,
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sk_userlocks : 4;
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