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Text File | 1989-08-16 | 9.6 KB | 357 lines

head 1.6; branch ; access ; symbols ; locks ; strict; comment @ * @; 1.6 date 89.08.15.19.55.38; author rab; state Exp; branches ; next 1.5; 1.5 date 89.03.23.09.52.52; author brent; state Exp; branches ; next 1.4; 1.4 date 89.02.21.10.06.43; author brent; state Exp; branches ; next 1.3; 1.3 date 88.08.16.11.22.08; author mendel; state Exp; branches ; next 1.2; 1.2 date 88.06.26.12.19.26; author mendel; state Exp; branches ; next 1.1; 1.1 date 88.04.27.09.01.36; author brent; state Exp; branches ; next ; desc @Internal defs @ 1.6 log @Commented #endif labels. @ text @/* * sockInt.h -- * * Internal declarations of the socket-related routines. * The data structures defined in this filed are used to manage * sockets. * * Copyright 1987 Regents of the University of California * All rights reserved. * Permission to use, copy, modify, and distribute this * software and its documentation for any purpose and without * fee is hereby granted, provided that the above copyright * notice appear in all copies. The University of California * makes no representations about the suitability of this * software for any purpose. It is provided "as is" without * express or implied warranty. * * * $Header: /sprite/src/daemons/ipServer/RCS/sockInt.h,v 1.5 89/03/23 09:52:52 brent Exp Locker: rab $ SPRITE (Berkeley) */ #ifndef _IPS_SOCKINT #define _IPS_SOCKINT #include "sprite.h" #include "dev/net.h" #include "netInet.h" #include "fs.h" #include "list.h" #include "proc.h" #ifdef KERNEL #include "../fs/fsInt.h" #include "../fs/fsSocket.h" #endif /* * Sock_State defines the various states that a socket can be in at * any one moment. */ typedef enum { UNUSED, /* Not in use. */ CREATED, /* The socket has been created by opening the * socket pseudo-device. */ HAVE_LOCAL_ADDR, /* A bind operation has been performed. */ READY, /* The socket can send and receive datagrams * (datagram only). */ LISTENING, /* A stream socket is waiting for connection * requests from remote hosts. */ CONNECTING, /* A stream socket trying to connect to a remote host.*/ CONNECTED, /* Stream socket: the connection attempt succeeded. * Datagram socket: the local and remote addresses * have been defined. */ DISCONNECTING, /* In the process of disconnecting from a remote host */ DISCONNECTED, /* The connection has been closed. */ } Sock_State; /* * There are two buffer queues for a socket. Data in the queue are * held in a linked list. */ typedef struct { List_Links links; /* List of Sock_BufDataInfo items. */ int size; /* # of bytes in the bufffer. */ int maxSize; /* Max. # of bytes allowed. */ } Sock_BufInfo; /* * Each data buffer in a socket buffer queue is described by this structure. */ typedef struct { List_Links links; /* All data are linked together */ Net_InetSocketAddr address; /* For reads, who sent the packet. */ int len; /* Number of bytes stored. */ Address bufPtr; /* Ptr to the data buffer. */ Address base; /* Base address of the Mem_Alloc'd * memory used for bufPtr. This is * the address given to Mem_Free when * info is no longer needed. */ } Sock_BufDataInfo; /* * Information about the peudo-device request buffer associated with * each socket. This is set up and used when the pseudo-device connection * is just being created. It is passed to the Sock_Open routine, and the * location of the request buffer is used for cleanup and for error checking. */ typedef struct SockPdevState { int protoIndex; /* Type for Sock_SharedInfo */ int reqBufSize; /* Size of the request buffer */ char *requestBuf; /* The request buffer itself */ } SockPdevState; /* * Information about a socket that is shared among processes using the socket. * 1) current state of use, protocol type. * 2) pointer to protocol-dependent information. * 3) queues that hold data to be sent to another socket * and data that has been received from another socket. * 4) info about the local and remote addresses assigned to this socket. * */ typedef struct Sock_SharedInfo { List_Links protoLinks; /* Links to others of same protocol. */ int protoIndex; /* One of RAW_PROTO_INDEX, * UDP_PROTO_INDEX, TCP_PROTO_INDEX. */ int protocol; /* For raw sockets: the IP protocol # * that must be present in incoming * packet in order to be received; * protocol # used in IP header on * output. */ ClientData protoData; /* Protocol-specific information. */ int reqBufSize; /* Size of the pdev request buffer */ char *requestBuf; /* The pdev request buffer. Packet * data is put here by the kernel, and * we format packets in place (without * copies) before outputing to the net*/ Sock_State state; /* Defined above. */ int options; /* Manipulated via IOC_NET_GET_OPTION/ * SET_OPTION in <dev/net.h>. */ Ioc_Owner owner; /* Current owner (process or family). */ int flags; /* Defined below. */ int clientCount; /* # of users using this socket. */ ReturnStatus error; /* Asynchronous error status from * ICMP or from the protocol-dependent * layer. */ Sock_BufInfo recvBuf; /* Data from the network. */ Sock_BufInfo sendBuf; /* Data to be sent out. */ Net_InetSocketAddr local; /* Address for this host. */ Net_InetSocketAddr remote; /* Address for remote host. */ Net_InetSocketAddr sentTo; /* Destination of the most-recently * sent packet (only if not connected.) */ int linger; /* # of seconds to wait upon closing. */ struct Sock_SharedInfo *parentPtr; /* Used to wakeup a socket waiting to * accept a new connection. */ List_Links clientList; /* List of clients using this socket. * Used to notify when the select state * changes. */ Boolean justEstablished; /* Used by a connection-based * protocol's select routine to notify * a waiter that the connection has * just become established. */ } Sock_SharedInfo; /* * Sock_SharedInfo flags: * SOCK_STOP_RECV - don't accept any more data. * SOCK_STOP_SEND - can't send data any more. * SOCK_URGENT_DATA_NEXT - urgent data is at the next logical byte * in the receive buffer. * SOCK_RAW_HAVE_LOCAL_ADDR - for raw sockets, the local address field * contains a usable address. * SOCK_HAVE_BOUND_ADDR - An address has been bound to the socket * with a bind operation. This flag is used * to prevent mutiple bind operations on the * same socket. */ #define SOCK_STOP_RECV 0x01 #define SOCK_STOP_SEND 0x02 #define SOCK_URGENT_DATA_NEXT 0x04 #define SOCK_RAW_HAVE_LOCAL_ADDR 0x08 #define SOCK_HAVE_BOUND_ADDR 0x10 /* * SOCK_MAX_LINGER_TIME - linger at most 2 minutes. */ #define SOCK_MAX_LINGER_TIME 120 /* * Information about a socket that must be kept for each process using the * socket. */ typedef struct Sock_PrivInfo { List_Links links; /* Used to attach this element to the * socket's clientList. */ Sock_SharedInfo *sharePtr; /* Common socket info. */ #ifndef KERNEL int streamID; /* Pdev stream ID. */ #else struct FsSocketIOHandle *sockHandlePtr; /* Back pointer to FS handle */ #endif int fsFlags; /* Flags from Fs_Open. */ Proc_PID pid; /* Process using this socket. */ int hostID; /* Host where process is based. */ int userID; /* User-ID of the process. */ int clientID; /* Client ID for the pdev. */ int recvFlags; /* Flags from IOC_NET_RECV_FLAGS ioctl. * Needed to emulate recv, recvfrom, * recvmsg. Defined in <dev/net.h>. */ Net_InetSocketAddr recvFrom; /* Source of the packet that was just * read. Needed for recvfrom, recvmsg * emulation. */ Net_SendInfo sendInfo; /* Info from IOC_NET_SEND_INFO ioctl. * Needed to emulate send,sendto, * sendmsg. */ Boolean sendInfoValid; /* If TRUE, the sendInfo is useful. */ } Sock_PrivInfo; #endif /* _IPS_SOCKINT */ @ 1.5 log @Added #ifdef KERNEL @ text @d19 1 a19 1 * $Header: /sprite/src/daemons/ipServer/RCS/sockInt.h,v 1.4 89/02/21 10:06:43 brent Exp $ SPRITE (Berkeley) d43 1 a43 1 CREATED, /* The socket has been created by opening the d61 1 a61 1 * held in a linked list. d102 1 a102 1 * 3) queues that hold data to be sent to another socket d109 1 a109 1 int protoIndex; /* One of RAW_PROTO_INDEX, d111 2 a112 2 int protocol; /* For raw sockets: the IP protocol # * that must be present in incoming d143 1 a143 1 List_Links clientList; /* List of clients using this socket. d146 3 a148 3 Boolean justEstablished; /* Used by a connection-based * protocol's select routine to notify * a waiter that the connection has d161 1 a161 1 * with a bind operation. This flag is used d200 1 a200 1 * read. Needed for recvfrom, recvmsg d209 1 a209 1 #endif _IPS_SOCKINT @ 1.4 log @Changed the Open interface a bit to pass information about the pseudo-device request buffer @ text @d19 1 a19 1 * $Header: /sprite/src/daemons/ipServer/RCS/sockInt.h,v 1.3 88/08/16 11:22:08 mendel Exp Locker: brent $ SPRITE (Berkeley) d32 4 d186 1 d188 3 @ 1.3 log @Converted to new lib.a. @ text @d19 1 a19 1 * $Header: sockInt.h,v 1.2 88/06/26 12:19:26 mendel Exp $ SPRITE (Berkeley) d81 6 d88 6 d113 5 @ 1.2 log @Added a flag used to dectect multiple bind operations on the same socket. @ text @d19 1 a19 1 * $Header: sockInt.h,v 1.1 88/04/27 09:01:36 brent Exp $ SPRITE (Berkeley) @ 1.1 log @Initial revision @ text @d19 1 a19 1 * $Header: sockInt.h,v 6.0 87/09/08 15:57:47 andrew Stable $ SPRITE (Berkeley) d139 4 d149 1 @