1STRUCT SOCK_COMMON(9)          Linux Networking          STRUCT SOCK_COMMON(9)
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NAME

6       struct_sock_common - minimal network layer representation of sockets
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SYNOPSIS

9       struct sock_common {
10         union {unnamed_union};
11         atomic_t skc_refcnt;
12         unsigned int skc_hash;
13         unsigned short skc_family;
14         volatile unsigned char skc_state;
15       #ifndef __GENKSYMS__
16         unsigned char skc_reuse;
17         unsigned char skc_reuseport:4;
18       #else
19         unsigned char skc_reuse;
20       #endif
21         int skc_bound_dev_if;
22         struct hlist_node skc_bind_node;
23         struct proto * skc_prot;
24       #ifdef CONFIG_NET_NS
25         struct net * skc_net;
26       #endif
27       };
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MEMBERS

30       {unnamed_union}
31           anonymous
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33       skc_refcnt
34           reference count
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36       skc_hash
37           hash value used with various protocol lookup tables
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39       skc_family
40           network address family
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42       skc_state
43           Connection state
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45       skc_reuse
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47           SO_REUSEADDR setting
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49       skc_reuseport
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51           SO_REUSEPORT setting
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53       skc_reuse
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55           SO_REUSEADDR setting
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57       skc_bound_dev_if
58           bound device index if != 0
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60       skc_bind_node
61           bind hash linkage for various protocol lookup tables
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63       skc_prot
64           protocol handlers inside a network family
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66       skc_net
67           reference to the network namespace of this socket
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DESCRIPTION

70       This is the minimal network layer representation of sockets, the header
71       for struct sock and struct inet_timewait_sock.
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74Kernel Hackers Manual 2.6.         June 2019             STRUCT SOCK_COMMON(9)
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