Implement /proc/net/unix.

PiperOrigin-RevId: 232948478
Change-Id: Ib830121e5e79afaf5d38d17aeef5a1ef97913d23

1 files changed, 16 insertions, 0 deletions

diff --git a/pkg/abi/linux/socket.go b/pkg/abi/linux/socket.go
index 929814752..a5f78506a 100644
--- a/pkg/abi/linux/socket.go
+++ b/pkg/abi/linux/socket.go
@@ -191,6 +191,15 @@ const (
 	SO_TXTIME                = 61
 )
 
+// enum socket_state, from uapi/linux/net.h.
+const (
+	SS_FREE          = 0 // Not allocated.
+	SS_UNCONNECTED   = 1 // Unconnected to any socket.
+	SS_CONNECTING    = 2 // In process of connecting.
+	SS_CONNECTED     = 3 // Connected to socket.
+	SS_DISCONNECTING = 4 // In process of disconnecting.
+)
+
 // SockAddrMax is the maximum size of a struct sockaddr, from
 // uapi/linux/socket.h.
 const SockAddrMax = 128
@@ -343,3 +352,10 @@ const SizeOfControlMessageRight = 4
 // SCM_MAX_FD is the maximum number of FDs accepted in a single sendmsg call.
 // From net/scm.h.
 const SCM_MAX_FD = 253
+
+// SO_ACCEPTCON is defined as __SO_ACCEPTCON in
+// include/uapi/linux/net.h, which represents a listening socket
+// state. Note that this is distinct from SO_ACCEPTCONN, which is a
+// socket option for querying whether a socket is in a listening
+// state.
+const SO_ACCEPTCON = 1 << 16