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256 lines
10 KiB
C
256 lines
10 KiB
C
1 year ago
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#ifndef TP0_SOCK_INCLUDED
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#define TP0_SOCK_INCLUDED
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/************************************************************************/
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/* SISCO SOFTWARE MODULE HEADER *****************************************/
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/************************************************************************/
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/* (c) Copyright Systems Integration Specialists Company, Inc., */
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/* 1997 - 2005 All Rights Reserved */
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/* */
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/* MODULE NAME : tp0_sock.h */
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/* PRODUCT(S) : Lean-T Stack */
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/* */
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/* MODULE DESCRIPTION : */
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/* TP0/RFC1006 header file for "sockets" interface. */
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/* */
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/* MODIFICATION LOG : */
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/* Date Who Rev Comments */
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/* -------- --- ------ ------------------------------------------- */
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/* 08/03/05 EJV 28 SOCK_INFO: added rekeyTime */
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/* 07/19/05 EJV 27 Added SOCK_STATE_CONNECT_CANCELLED. */
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/* 06/30/05 EJV 26 SOCK_INFO: added recvCnt (for flow control) */
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/* 06/06/05 EJV 25 MMSEASE_MOSE: few more chgs to RFC1006_IPC* */
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/* 05/25/05 EJV 24 Added ssec.h */
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/* 04/25/05 JRB,EJV 23 Add RFC1006_IPC_MSG, RFC1006_LISTENER_.. defs*/
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/* 05/09/05 EJV 22 SOCK_INFO: added port field. sreadd add arg6.*/
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/* 05/05/05 EJV 21 np_connect_req: added rem_port param. */
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/* 03/08/05 JRB 20 Add RFC1006.. define. */
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/* 02/22/05 JRB 19 slistend,sreadd: chg ret from void to int. */
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/* 02/21/05 JRB 18 Del ioctlsocket define. Use def in gensock2.h*/
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/* 01/14/04 EJV 17 np_data_req: added eot param. */
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/* Added np_get_tx_queue_cnt func. */
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/* 10/23/03 JRB 16 Move all system includes to sysincs.h */
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/* 10/16/03 JRB 15 SOCK_INFO: add genSock. */
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/* 09/11/03 EJV 14 Del winsock.h (windows.h gets right winsock) */
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/* Added encrypt_ctrl arg to np_connect_req(). */
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/* SOCK_INFO: Add DBL_LNK l and encrypt_ctrl. */
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/* 07/16/02 JRB 13 Add arg to sreadd proto. */
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/* 06/20/02 JRB 12 Chg np_connect_req 2nd arg to ulong ipAddr. */
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/* 05/08/02 JRB 11 Chg connect_result to int (to store errno). */
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/* 05/03/02 JRB 10 Add ip_addr to SOCK_INFO to pass to Read task.*/
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/* 02/02/01 EJV 09 _AIX: added forward references for inet.h. */
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/* 01/02/01 EJV 08 Ported to _AIX. */
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/* 08/15/00 EJV 07 WIN32: Del pipe_msg_crit_sec, pipe_msg_count.*/
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/* 05/18/00 JRB 06 Del "select.h". See "sysincs.h". */
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/* Add <netinet/tcp.h> for VXWORKS. */
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/* Improve "ioctlsocket" macros for non-WIN32. */
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/* 08/13/98 JRB 05 Lint cleanup. */
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/* Add <netinet/tcp.h> for default system. */
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/* 12/09/97 JRB 04 Added __OS2__ support. */
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/* 11/14/97 JRB 03 Make PIPE_MSG for VXWORKS like _WIN32. */
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/* 11/10/97 JRB 02 Add VXWORKS support. */
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/* 08/01/97 JRB 01 Created (compatible with MMS-EASE 7.0). */
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/************************************************************************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "gensock2.h" /* need GEN_SOCK definition */
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#include "ssec.h" /* need S_SEC_ENCRYPT_CTRL */
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/* Include sockets defs appropriate for this platform. */
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#if !defined (_WIN32)
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#define closesocket close
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#define WSAEWOULDBLOCK EWOULDBLOCK
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#define WSAEINPROGRESS EINPROGRESS
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#if defined (__OS2__)
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#define WSAGetLastError() sock_errno()
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#define GetLastError() errno
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#else /* !__OS2__ */
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#define WSAGetLastError() errno
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#endif /* !__OS2__ */
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#define SOCKET int
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#define SOCKADDR struct sockaddr
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#define SOCKADDR_IN struct sockaddr_in
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#define PSOCKADDR struct sockaddr *
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#define HOSTENT struct hostent
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#define INVALID_SOCKET (-1)
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#endif /* !_WIN32 */
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/************************************************************************/
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/* Constant definitions. */
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/************************************************************************/
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#define IPPORT_RFC1006 102
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#define RFC1006_HEAD_LEN 4
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#define RFC1006_VERSION 3 /* first byte of TPKT is version*/
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#define INVALID_CONN_ID (-1L)
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#define LISTEN_TASK_NAME "slistend" /* "Listen" task exe name*/
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#define READ_TASK_NAME "sreadd" /* "Read" task exe name */
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#define PIPE_TO_MAIN_NAME "/tmp/pipetp0main"
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#define PIPE_TO_LISTEN_NAME "/tmp/pipetp0list"
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/************************************************************************/
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/* Variable type definitions. */
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/************************************************************************/
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/* Defines of possible values for "state" in SOCK_INFO struct. */
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#define SOCK_STATE_ACCEPTED 0
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#define SOCK_STATE_CONNECTING 1
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#define SOCK_STATE_CONNECTED 2
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#define SOCK_STATE_DISCONNECTING 3
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#define SOCK_STATE_CONNECT_CANCELLED 4
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typedef struct
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{
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DBL_LNK l; /* needed to store this struct on linked list */
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GEN_SOCK *genSock; /* Use with gensock2. Otherwise, use "hSock" */
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SOCKET hSock;
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ST_INT state;
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ST_LONG user_conn_id; /* Received from user on N-CONNECT.req/rsp */
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ST_UINT32 ip_addr; /* IP addr as long int in network byte order. */
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ST_UINT16 port; /* RFC1006 port, defaults to 102 */
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#if !(defined(_WIN32) || defined (__OS2__))
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pid_t pid_read; /* Save READ process PID */
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#endif
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S_SEC_ENCRYPT_CTRL encrypt_ctrl;
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ST_UINT recvCnt; /* num of received (queued) data msgs */
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ST_DOUBLE rekeyTime; /* next time to check rekey if we are idle */
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} SOCK_INFO;
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/* Info to pass to spawned thread. Can only pass 1 arg to thread, so */
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/* make it a structure, and put whatever we need in it. */
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typedef struct
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{
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SOCK_INFO *sock_info; /* to pass back to main in PIPE_MSG. */
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SOCKET hSock; /* copied from "sock_info" */
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ST_INT state; /* copied from "sock_info" */
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ST_UINT16 max_tpkt_len; /* Max len of RFC1006 TPKT. */
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} THREAD_INFO;
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typedef struct
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{
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SOCK_INFO *sock_info;
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ST_INT connect_result; /* errno (WSAGetLastErr() for Windows)*/
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ST_UINT16 tpkt_len;
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#if (defined (_WIN32) || defined (VXWORKS) || defined (__OS2__))
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ST_UCHAR *tpkt_ptr;
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#else
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ST_UCHAR tpkt_buf [1]; /* Beginning of buffer attached to this struct*/
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#endif
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} PIPE_MSG;
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/* Use define for Length of PIPE_MSG without tpkt_buf at end. */
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#define PIPE_MSG_HEAD_LEN (sizeof(PIPE_MSG)-1)
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/************************************************************************/
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/* Global variables. */
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/************************************************************************/
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extern ST_UCHAR *g_tpkt_enc_buf; /* Buffer for encoding TPKTs. */
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extern SOCKET hSockListen; /* listen socket handle */
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#if defined _WIN32
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extern HANDLE hPipeMainRead; /* read handle for pipe */
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extern HANDLE hPipeMainWrite; /* write handle for pipe */
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extern HANDLE hEventListenGo;
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#endif
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#if defined (__OS2__)
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extern HFILE hPipeMainRead; /* read handle for pipe */
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extern HFILE hPipeMainWrite; /* write handle for pipe */
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extern HEV hEventListenGo;
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extern ST_INT pipe_msg_count;
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#endif /* __OS2__ */
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/************************************************************************/
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/* Function Prototypes. */
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/************************************************************************/
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ST_RET np_init (ST_INT max_num_conns);
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ST_RET np_end (ST_VOID);
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ST_BOOLEAN np_event (ST_VOID);
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SOCK_INFO * np_connect_req (ST_LONG user_conn_id, ST_ULONG ipAddr, ST_UINT16 rem_port,
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S_SEC_ENCRYPT_CTRL *encrypt_ctrl);
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ST_VOID np_connect_cnf_pos (SOCK_INFO *sock_info, ST_LONG user_conn_id);
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/* NOTE: np_connect_ind & np_connect_rsp not needed because user only */
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/* cares about Transport conn. Doesn't need to know about Network conn.*/
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ST_RET np_data_req (SOCK_INFO *sock_info, ST_INT pdu_len, ST_UCHAR *pdu_ptr, ST_BOOLEAN eot);
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ST_VOID np_data_ind (SOCK_INFO *sock_info, ST_UCHAR *pdu_ptr, ST_UINT16 pdu_len);
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ST_UINT np_get_tx_queue_cnt (SOCK_INFO *sock_info);
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ST_RET np_disconnect_req (SOCK_INFO *sock_info);
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ST_VOID np_disconnect_ind (SOCK_INFO *sock_info);
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ST_RET sockets_init (ST_INT max_num_conns);
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ST_VOID sockets_end (ST_VOID);
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ST_RET spawn_listen (SOCKET hSock);
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ST_RET spawn_read (SOCK_INFO *sock_info);
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ST_VOID handle_accepted_conn (SOCK_INFO *sock_info);
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ST_VOID handle_connect_success (SOCK_INFO *sock_info);
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ST_VOID handle_connect_fail (SOCK_INFO *sock_info);
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ST_VOID handle_data (SOCK_INFO *sock_info, ST_UCHAR *tpkt_ptr, ST_UINT16 tpkt_len);
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ST_VOID handle_disconnect (SOCK_INFO *sock_info);
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SOCK_INFO *sock_info_alloc (SOCKET hSock, ST_INT state, ST_LONG user_conn_id);
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ST_VOID sock_info_free (SOCK_INFO *sock_info);
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#if defined (_WIN32)
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void ThreadSockListen (void *param);
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void ThreadSockRead (void *param);
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#endif /* _WIN32 */
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#if defined (__OS2__)
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void _Optlink ThreadSockListen (void *param);
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void _Optlink ThreadSockRead (void *param);
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#endif /* __OS2__ */
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int slistend (int arg1);
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int sreadd (int arg1, int arg2, int arg3, int arg4, int arg5, int arg6);
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/************************************************************************/
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/* Code used by MMSEASE_MOSI. */
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/* Defines, etc. for interfacing to "rfc1006_listener" task. */
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/* Only used on LINUX, but the code should be portable to most UNIX-like*/
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/* systems. */
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/************************************************************************/
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#if defined(MMSEASE_MOSI)
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/* use the same task name and the UNIX domain listen socket name to */
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/* easy associate each other when viewing for example network stats */
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#if defined(linux)
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#define RFC1006_LISTENER_EXE_PATH "/usr/sisco/bin"
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#define RFC1006_LISTENER_IPC_PATH "/tmp"
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#endif
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#define RFC1006_LISTENER_NAME "rfc1006listenerd"
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#define RFC1006_LISTENER_DOMSOCK "rfc1006listenerd.domsock"
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#define RFC1006_LISTENER_LOG "rfc1006listenerd.log"
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#define RFC1006_IPC_MAGIC_NUM 0xBADC
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/* defines for "opcode" in RFC1006_IPC_MSG. */
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#define RFC1006_IPC_OP_START 1 /* start RFC1006_LISTENER daemon */
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#define RFC1006_IPC_OP_STOP 2 /* stop RFC1006_LISTENER daemon */
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#define RFC1006_IPC_OP_BIND 3
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#define RFC1006_IPC_OP_UNBIND 4
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#define RFC1006_IPC_OP_CONNECT 5 /* TP0 connect indication */
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#define RFC1006_IPC_OP_SET_LOG 6 /* change RFC1006_LISTENER log masks */
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typedef struct rfc1006_ipc_msg_tag
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{
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ST_UINT16 magic; /* always == RFC1006_IPC_MAGIC_NUM */
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ST_UINT16 opcode; /* one of RFC1006_IPC_OP.. values */
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ST_UINT16 data_len; /* length of data following this msg */
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} RFC1006_IPC_MSG;
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extern ST_BOOLEAN use_rfc1006_listener_task;
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extern SOCKET domsock_listener; /* domain socket connected to the */
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/* RFC1006_LISTENER task. */
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ST_INT recvwait (SOCKET hSock, ST_VOID *buf, ST_INT numBytes, int flags);
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ST_INT sendwait (SOCKET hSock, ST_VOID *buf, ST_INT numBytes, int flags);
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ST_RET setListenerIPCDir (ST_CHAR *dirPath);
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#endif /* defined(MMSEASE_MOSI) */
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#ifdef __cplusplus
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}
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#endif
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#endif /* !TP0_SOCK_INCLUDED */
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