--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/g23m-fad/ppp/ppp.h	Fri Oct 16 06:25:50 2020 +0000
@@ -0,0 +1,854 @@
+/* 
++----------------------------------------------------------------------------- 
+|  Project :  
+|  Modul   :  
++----------------------------------------------------------------------------- 
+|  Copyright 2002 Texas Instruments Berlin, AG 
+|                 All rights reserved. 
+| 
+|                 This file is confidential and a trade secret of Texas 
+|                 Instruments Berlin, AG 
+|                 The receipt of or possession of this file does not convey 
+|                 any rights to reproduce or disclose its contents or to 
+|                 manufacture, use, or sell anything it may describe, in 
+|                 whole, or in part, without the specific written consent of 
+|                 Texas Instruments Berlin, AG. 
++----------------------------------------------------------------------------- 
+|  Purpose :  Definitions for the Protocol Stack Entity
+|             Point-to-Point Protocol (PPP)
++----------------------------------------------------------------------------- 
+*/ 
+
+#ifndef PPP_H
+#define PPP_H
+
+/*==== MACROS ======================================================*/
+
+/*
+ * defines the user of the vsi interface
+ */
+#define VSI_CALLER            PPP_handle,
+#define VSI_CALLER_SINGLE     PPP_handle
+
+/*
+ * VERSION
+ *
+ * Description :  The constants define the type and the value
+ *                of a version identification. The version
+ *                is part of the monitor struct.
+ */
+#define VERSION_PPP   "PPP 1.0"
+
+/*
+ * This is just a TEMPORARY define until the issues with OPTION_MULTITHREAD
+ * are settled. This define SHOULD be contained in GSM.H.
+ */
+#undef _ENTITY_PREFIXED
+#define _ENTITY_PREFIXED(N) ppp_##N
+
+/*
+ * these macros might be defined more globally!!!
+ */
+#ifdef FRAME_OFFSET_ZERO
+
+#define GET_PD(s,p)               p=s.buf[3] & 0x0F
+#define GET_TI(s,t)               t=(s.buf[3] & 0xF0)>>4
+
+#else /* FRAME_OFFSET_ZERO */
+
+#define GET_PD(s,p)               ccd_decodeByte(s.buf, (USHORT)(s.o_buf+4), 4, &p)
+#define GET_TI(s,t)               ccd_decodeByte(s.buf, s.o_buf, 4, &t)
+
+#endif /* FRAME_OFFSET_ZERO */
+
+
+/*==== CONSTANTS ======================================================*/
+
+/*
+ * Bitoffset for encoding/decoding
+ */
+#define ENCODE_OFFSET         0
+
+
+/*
+ * Service definitions. Used to access service data with GET/SET_STATE.
+ *
+ * Services with multiple incarnation have to be defined as xxx->
+ * Services with only one incarnation have to be defined as xxx.
+ *
+ */
+#define PPP_SERVICE_RT    rt. 
+#define PPP_SERVICE_PRX   prx.
+#define PPP_SERVICE_PTX   ptx.
+#define PPP_SERVICE_FRX   frx.
+#define PPP_SERVICE_FTX   ftx.
+#define PPP_SERVICE_ARB   arb.
+#define PPP_SERVICE_LCP   lcp.
+#define PPP_SERVICE_ONA   ona->
+#define PPP_SERVICE_NCP   ncp.
+#define PPP_SERVICE_PAP   pap.
+#define PPP_SERVICE_CHAP  chap.
+
+
+/*
+ * Service name definitions for trace purposes. 
+ */
+#ifndef NTRACE
+
+#define SERVICE_NAME_PPP_SERVICE_RT   "RT"
+#define SERVICE_NAME_PPP_SERVICE_PRX  "PRX"
+#define SERVICE_NAME_PPP_SERVICE_PTX  "PTX"
+#define SERVICE_NAME_PPP_SERVICE_FRX  "FRX"
+#define SERVICE_NAME_PPP_SERVICE_FTX  "FTX"
+#define SERVICE_NAME_PPP_SERVICE_ARB  "ARB"
+#define SERVICE_NAME_PPP_SERVICE_LCP  "LCP"
+#define SERVICE_NAME_PPP_SERVICE_ONA  "ONA"
+#define SERVICE_NAME_PPP_SERVICE_NCP  "NCP"
+#define SERVICE_NAME_PPP_SERVICE_PAP  "PAP"
+#define SERVICE_NAME_PPP_SERVICE_CHAP "CHAP"
+
+#endif /* !NTRACE */
+
+
+/*
+ * State definitions for each service.
+ */
+
+#define RT_STOPPED                                              1
+#define RT_STARTED                                              2
+
+#define PRX_NDTI                                                3
+#define PRX_NDTI_START_FLOW                                     4
+#define PRX_READY                                               5
+#define PRX_DEAD                                                6
+#define PRX_DEAD_DTI                                            7
+
+#define PTX_READY                                               8
+#define PTX_BLOCKED                                             9
+#define PTX_DEAD                                               10
+
+#define FRX_READY_NDTI                                         11
+#define FRX_TRANSPARENT_NDTI                                   12
+#define FRX_READY                                              13
+#define FRX_DEAD                                               14
+#define FRX_DEAD_DTI                                           15
+#define FRX_TRANSPARENT                                        16
+
+#define FTX_READY                                              17
+#define FTX_BLOCKED                                            18
+#define FTX_READY_DTI_FULL                                     19
+#define FTX_BLOCKED_DTI_FULL                                   20
+#define FTX_DEAD                                               21
+#define FTX_DEAD_START_FLOW                                    22
+#define FTX_TRANSPARENT                                        23
+#define FTX_TRANSPARENT_DTI_FULL                               24
+
+#define ARB_DEAD                                               25
+#define ARB_LCP_ESTABLISH                                      26
+#define ARB_LCP_PDP                                            27
+#define ARB_LCP_NCP                                            28
+#define ARB_LCP_RECONF                                         29
+#define ARB_LCP_MOD                                            30
+#define ARB_PAP_ESTABLISH                                      31
+#define ARB_PAP_RECONF                                         32
+#define ARB_CHAP_ESTABLISH                                     33
+#define ARB_CHAP_RECONF                                        34
+#define ARB_PDP_WAIT                                           35
+#define ARB_PDP_SENT                                           36
+#define ARB_NCP_ESTABLISH                                      37
+#define ARB_NCP_RECONF                                         38
+#define ARB_NCP_MOD                                            39
+#define ARB_IP                                                 40
+#define ARB_TRANSPARENT                                        41
+
+#define LCP_STATE                                              42
+
+#define ONA_CLOSED                                             43
+#define ONA_CLOSING                                            44
+#define ONA_REQ_SENT                                           45
+#define ONA_ACK_RCVD                                           46
+#define ONA_ACK_SENT                                           47
+#define ONA_OPENED                                             48
+
+#define NCP_STATE                                              49
+
+#define PAP_DOWN                                               50
+#define PAP_UP                                                 51
+
+#define CHAP_DOWN                                              52
+#define CHAP_UP                                                53
+
+/*
+ * state definitions for PTX TX buffer
+ */
+
+#define PTX_BUFFER_FULL                                        70      /* a state of PTX TX buffer */
+#define PTX_BUFFER_READY                                       71      /* a state of PTX TX buffer */
+
+/*
+ * state definitions for FTX TX buffer
+ */
+#define PTX_FTX_BUFFER_READY                                   72      /* a state of FTX TX buffer */
+#define PTX_FTX_BUFFER_FULL                                    73      /* a state of FTX TX buffer */
+
+/*
+ * state definitions for uplink data flow
+ */
+
+#define FRX_DATA_FLOW_DEAD                                     74      /* a state of PTX TX buffer */
+#define FRX_DATA_FLOW_READY                                    75      /* a state of PTX TX buffer */
+
+
+/*
+ * PPP spicific defines
+ */
+#define DTI_PID_IPCP              0x8021
+#define DTI_PID_LCP               0xc021
+#define DTI_PID_PAP               0xc023
+#define DTI_PID_CHAP              0xc223
+
+#define CODE_CONF_REQ             1
+#define CODE_CONF_ACK             2
+#define CODE_CONF_NAK             3
+#define CODE_CONF_REJ             4
+#define CODE_TERM_REQ             5
+#define CODE_TERM_ACK             6
+#define CODE_CODE_REJ             7
+#define CODE_PROT_REJ             8
+#define CODE_ECHO_REQ             9
+#define CODE_ECHO_REP             10
+#define CODE_DISC_REQ             11
+
+#define CODE_AUTH_REQ             1
+#define CODE_AUTH_ACK             2
+#define CODE_AUTH_NAK             3
+
+#define CODE_CHALLENGE            1
+#define CODE_RESPONSE             2
+#define CODE_SUCCESS              3
+#define CODE_FAILURE              4
+
+#define FORWARD_RCRP              1
+#define FORWARD_RCRN              2
+#define FORWARD_RCA               3
+#define FORWARD_RCN               4
+#define FORWARD_RTR               5
+#define FORWARD_RTA               6
+#define FORWARD_RUC               7
+#define FORWARD_RXJN              8
+#define FORWARD_RER               9
+#define FORWARD_RPJ_LCP           10
+#define FORWARD_RPJ_PAP           12
+#define FORWARD_RPJ_CHAP          13
+#define FORWARD_RPJ_IPCP          14
+#define FORWARD_RPJ_IP            15
+#define FORWARD_RPJ_CTCP          16
+#define FORWARD_RPJ_UTCP          17
+#define FORWARD_DISCARD           18
+#define FORWARD_RARP              19
+#define FORWARD_RARN              20
+#define FORWARD_RAA               21
+#define FORWARD_RAN               22
+#define FORWARD_RC                23
+#define FORWARD_RRP               24
+#define FORWARD_RRN               25
+#define FORWARD_RS                26
+#define FORWARD_RF                27
+
+#define PROTOCOL_LCP_MSB          0xc0
+#define PROTOCOL_LCP_LSB          0x21
+#define PROTOCOL_PAP_MSB          0xc0
+#define PROTOCOL_PAP_LSB          0x23
+#define PROTOCOL_CHAP_MSB         0xc2
+#define PROTOCOL_CHAP_LSB         0x23
+#define PROTOCOL_VJ_MSB           0x00
+#define PROTOCOL_VJ_LSB           0x2d
+#define PROTOCOL_IPCP_MSB         0x80
+#define PROTOCOL_IPCP_LSB         0x21
+
+#define PPP_INITFCS               0xffff
+#define PPP_GOODFCS               0xf0b8
+
+#define PPP_HDLC_ESCAPE           0x7d
+#define PPP_HDLC_FLAG             0x7e
+#define PPP_ASCII_DEL             0x7f
+
+#define PPP_AP_DEFAULT            PPP_AP_NO
+#define PPP_ACFC_DEFAULT          FALSE
+#define PPP_PFC_DEFAULT           FALSE
+#define PPP_HC_DEFAULT            PPP_HC_OFF
+#define PPP_MSID_DEFAULT          0
+#define PPP_IP_DEFAULT            PPP_IP_DYNAMIC
+#define PPP_PDNS_DEFAULT          PPP_DNS1_DYNAMIC
+#define PPP_SDNS_DEFAULT          PPP_DNS2_DYNAMIC
+#define PPP_GATEWAY_DEFAULT       PPP_IP_DYNAMIC
+
+#define PPP_MRU_MIN               1500
+
+#define CHAP_MSG_DIGEST_LEN       16
+
+#define FTX_QUEUE_SIZE            1
+#define PTX_QUEUE_SIZE            1
+
+
+#define PPP_PCO_MASK_LCP_MRU      0x00000001 /* MRU value */
+#define PPP_PCO_MASK_LCP_AP       0x00000002 /* LCP authentication protocol */
+#define PPP_PCO_MASK_LCP_TWO      0x00000004 /* two LCP packets */
+#define PPP_PCO_MASK_AUTH_PROT    0x00000008 /* authentification packets (PAP/CHAP) */
+#define PPP_PCO_MASK_IPCP_HC      0x00000010 /* VJ header compression */
+#define PPP_PCO_MASK_IPCP_IP      0x00000020 /* IP address */
+#define PPP_PCO_MASK_IPCP_PDNS    0x00000040 /* primary DNS address */
+#define PPP_PCO_MASK_IPCP_SDNS    0x00000080 /* secondary DNS address */
+#define PPP_PCO_MASK_IPCP_GATEWAY 0x00000100 /* gateway address */
+#ifdef _SIMULATION_
+#define PPP_PCO_MASK_DEFAULT      (PPP_PCO_MASK_LCP_MRU   | \
+                                   PPP_PCO_MASK_LCP_AP    | \
+                                   PPP_PCO_MASK_LCP_TWO   | \
+                                   PPP_PCO_MASK_AUTH_PROT | \
+                                   PPP_PCO_MASK_IPCP_HC   | \
+                                   PPP_PCO_MASK_IPCP_IP   | \
+                                   PPP_PCO_MASK_IPCP_PDNS | \
+                                   PPP_PCO_MASK_IPCP_SDNS)
+#else /* _SIMULATION_ */
+#define PPP_PCO_MASK_DEFAULT      (PPP_PCO_MASK_AUTH_PROT | \
+                                   PPP_PCO_MASK_IPCP_PDNS | \
+                                   PPP_PCO_MASK_IPCP_SDNS)
+#endif /* _SIMULATION_ */
+/*
+ * size of a descriptor which includes the frame
+ */
+#define FTX_GET_DESC_SIZE          (400 - (UBYTE)sizeof(T_desc2))
+
+/*
+ * frx_add_desc states 
+ */
+#define FRX_ADD_HDLC_BEGIN                                      1
+#define FRX_ADD_ADDRESS                                         2
+#define FRX_ADD_CONTROL                                         3
+#define FRX_ADD_PROTOCOL1                                       4
+#define FRX_ADD_PROTOCOL2                                       5
+#define FRX_ADD_INFORMATION                                     6
+#define FRX_ADD_FCS1                                            7
+#define FRX_ADD_FCS2                                            8
+#define FRX_ADD_HDLC_END                                        9
+#define FRX_ADD_ERROR                                          10
+
+/*
+ * Definitions for DTILIB
+ */
+
+#define PROT_LAYER                0
+#define PEER_LAYER                1
+#define PROT_CHANNEL              0
+#if defined(_SIMULATION_)
+#define PEER_CHANNEL              0
+#else
+#define PEER_CHANNEL              1
+#endif
+#define MAX_TRIES_OPEN_VSI_CHAN   5
+#define PPP_INSTANCE              0
+#define MAX_PPP_LINKS             2
+
+/*
+ * packet size for normal PPP packets
+ * this value is just used to reduce the allocated memory
+ */
+#define FRX_ADD_SMALL_PACKET_SIZE          (100 - (UBYTE)(sizeof(T_desc2)))
+
+/*
+ * number of ONA incarnations: LCP and NCP
+ */
+#define ONA_NUM_INC                                             2
+
+#ifdef FF_STATUS_TE
+/*
+ * driver handle for wakeup driver
+ */
+#define STE_HANDLE                                         0x0001
+#endif /* FF_STATUS_TE */
+
+/*
+ * Timer handle definitions.
+ */
+
+#define RT_INDEX                 0
+#define TIMER_MAX               (RT_INDEX + 1)
+
+/*==== TYPES ======================================================*/
+
+#ifdef OPTION_TIMER
+/*
+ * timer configuration table
+ */
+typedef struct
+{
+  UBYTE            t_mode;
+  ULONG            t_val;
+} T_TIMER_CONFIG;
+#endif /* OPTION_TIMER */
+
+/*
+ * Test environment (simulator) vs. Implementation environment.
+ */
+typedef enum
+{
+  TEST_ENV,
+  IMPL_ENV
+} T_ENVIRONMENT;
+
+typedef enum
+{
+  SERVICE_PTX,
+  SERVICE_PRX,
+  SERVICE_FRX,
+  SERVICE_FTX,
+  SERVICE_RT,
+  SERVICE_ARB,
+  SERVICE_PAP,
+  SERVICE_CHAP,
+  SERVICE_LCP,
+  SERVICE_NCP,
+  SERVICE_ONA,
+  NO_SERVICE
+} T_SERVICE;
+
+/*
+ * dat structure for each service
+ */
+typedef struct /* T_RT_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /*ab hier service spezif.
+   * timeout value
+   */
+  T_TIME                      time;
+
+} T_RT_DATA;
+
+
+typedef struct /* T_PRX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+#ifdef FF_STATUS_TE
+  UBYTE    TE_data_buffered;     /* Status of TE-data-buffer asleep/awake */
+  UBYTE    TE_data_buffer_p_id;  /* When TE asleep here the p_id is buffered */
+  T_desc2* TE_data_buffer_desc_list_first; /* When TE asleep here the desc-list is buffered */
+#endif /* FF_STATUS_TE */
+
+} T_PRX_DATA;
+
+
+typedef struct /* T_PTX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  /* 
+   * service specific members 
+   */
+  USHORT          ftx_buffer_state;  /* state of FTX TX buffer */
+  USHORT          ptx_buffer_state;  /* state of PTX TX buffer */
+
+} T_PTX_DATA;
+
+
+typedef struct /* T_FRX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  T_desc2*        received_data;     /* last received data stream */
+  USHORT          proceed_data;      /* number of octets already proceeded */
+  UBYTE           frame_complete;    /* indicates whether a complete frame is
+                                        received or not */
+  USHORT          stored_ptype;      /* stored packet type */
+  T_desc2*        stored_packet;     /* stored packet */
+  USHORT          stored_len;        /* stored packet length */
+  USHORT          calc_fcs;          /* calculated fcs */
+  UBYTE           escape;            /* indicates HDLC Control Escape detection */
+  T_desc2*        cur_desc;          /* current descriptor for storing */
+  USHORT          cur_desc_size;     /* size of the current descriptor buffer */
+  UBYTE           store_state;       /* state of frame decoding */
+  USHORT          data_flow_state;   /* state of FRX->PTX data flow */
+
+#ifdef PPP_HDLC_TRACE
+  T_desc2*        hdlc_frame;     /* complete HDLC frame stored for traces */
+#endif /* PPP_HDLC_TRACE */
+
+} T_FRX_DATA;
+
+
+typedef struct /* T_FTX_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* 
+   * from here on service specific
+   */
+
+  UBYTE*       accmtab;  /* Async-Control-Character-Map Table */
+
+  UBYTE        acfc;     /* Address and Control Field Compression */
+  UBYTE        pfc;      /* Protocol Field Compression */
+
+} T_FTX_DATA;
+
+
+typedef struct /* T_ARB_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  UBYTE         pri;          /* Protocol Reject Identifier */
+  UBYTE         to_counter;   /* Time Out Counter */
+  T_desc2*      last_ipcp;    /* Last sent IPCP packet */
+
+UBYTE  dti_connect_state_prot; /* DTI Connect State for the Protocol Layer     */
+UBYTE  dti_connect_state_peer; /* DTI Connect State for the Peer Layer         */
+
+} T_ARB_DATA;
+
+
+typedef struct /* T_LCP_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  USHORT  req_mru;    /* requested maximum receive unit */
+  ULONG   req_accm;   /* requested async control character map */
+  UBYTE   req_ap;     /* requested authetication protocol */
+
+  USHORT  s_mru;      /* to send maximum receive unit */
+  ULONG   s_accm;     /* to send async control character map */
+  UBYTE   s_pfc;      /* to send protocol field compression */
+  UBYTE   s_acfc;     /* to send address and control field compression */
+  USHORT  s_rejected; /* indicator of rejection of sent configuration entity_options */
+
+  USHORT  r_mru;      /* received maximum receive unit */
+  ULONG   r_accm;     /* received async control character map */
+  UBYTE   r_pfc;      /* received protocol field compression */
+  UBYTE   r_acfc;     /* received address and control field compression */
+
+  UBYTE   n_ap;       /* negotiated authentication protocol */
+
+  UBYTE   scr;        /* indicator whether configure request was sent */
+  UBYTE   str;        /* indicator whether terminate request was sent */
+
+  UBYTE   rcr;        /* indicator whether configure request was received */
+
+  UBYTE   nscri;      /* new send configure request identifier */
+  UBYTE   nstri;      /* new send terminate request identifier */
+  UBYTE   nscji;      /* new send code reject identifier */
+
+  UBYTE   lrcri;      /* last received configure request identifier */
+
+} T_LCP_DATA;
+
+
+typedef struct /* T_ONA_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  UBYTE restarts; /* counter for Configure-Request and Terminate-Request sent */
+  UBYTE failures; /* counter for Configure-Nak and Configure-Reject sent      */
+  UBYTE loops;    /* counter for Configure-Ack received */
+
+} T_ONA_DATA;
+
+
+typedef struct /* T_NCP_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  UBYTE   req_hc;       /* requested header compression protocol */
+  UBYTE   req_msid;     /* requested max slot identifier */
+  ULONG   req_ip;       /* requested IP address */
+  ULONG   req_pdns;     /* requested primary DNS server address */
+  ULONG   req_sdns;     /* requested secondary DNS server address */
+  ULONG   req_gateway;  /* requested Gateway address */
+
+  UBYTE   s_hc;       /* sent header compression */
+  UBYTE   s_msid;     /* sent max slot identifier */
+  USHORT  s_rejected; /* indicator of rejection of sent configuration entity_options */
+
+  UBYTE   r_hc;       /* received header compression */
+  UBYTE   r_msid;     /* received max slot identifier */
+
+  ULONG   n_ip;       /* negotiated IP address */
+  ULONG   n_pdns;     /* negotiated primary DNS server address */
+  ULONG   n_sdns;     /* negotiated secondary DNS server address */
+  ULONG   n_gateway;  /* negotiated Gateway address */
+
+  UBYTE   scr;        /* indicator whether configure request was sent */
+  UBYTE   str;        /* indicator whether terminate request was sent */
+
+  UBYTE   rcr;        /* indicator whether configure request was received */
+
+  UBYTE   nscri;      /* new send configure request identifier */
+  UBYTE   nstri;      /* new send terminate request identifier */
+  UBYTE   nscji;      /* new send code reject identifier */
+
+  UBYTE   lrcri;      /* last received configure request identifier */
+
+} T_NCP_DATA;
+
+
+typedef struct /* T_PAP_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  T_login  login;          /* PAP authentication values (client mode) */
+  T_desc2* ar_packet;      /* PAP Authentication Request packet (server mode) */
+  UBYTE    counter;        /* counter for timer restart */
+  UBYTE    nari;           /* new authenticate request identifier */
+
+} T_PAP_DATA;
+
+
+typedef struct /* T_CHAP_DATA */
+{
+  UBYTE                       state;
+  /*
+   * Required for state traces.
+   */
+#ifndef NTRACE
+  char                        *name;
+  char                        *state_name;
+#endif /* !NTRACE */
+  
+  /* ab hier service spezif.
+   * 
+   */
+  T_desc2* c_packet;       /* CHAP Challenge packet (server mode) */
+  T_desc2* r_packet;       /* CHAP Response packet (server mode) */
+  UBYTE    counter;        /* counter for timer restart */
+  UBYTE    fails;          /* counter for failed authentication */
+  UBYTE    nci;            /* new challenge identifier */
+  UBYTE    sc;             /* indicator whether Challenge packet was sent */
+  UBYTE    rc;             /* indicator whether Challenge packet was received */
+  UBYTE    sr;             /* indicator whether Respons packet was sent */
+  UBYTE    rs;             /* indicator whether Success packet was received */
+
+} T_CHAP_DATA;
+
+
+/*
+ * summery of all service 
+ */
+
+typedef struct /* T_PPP_DATA */
+{
+
+  /*
+   * PPP layer parameters 
+   */
+  UBYTE                       version;
+
+  /*
+   * Service data structures
+   *
+   * Services with multiple incarnations require an array of structures
+   * named xxx_base[] with xxx = service abbrevation, and additionally a
+   * pointer named *xxx, which will be accessed instead of xxx_base.
+   * 
+   * Services with only one incarnation just have to declare one structure
+   * named xxx (no need for xxx_base[] and *xxx).
+   * 
+   * The differentiation between the two access possibilites is made with
+   * the defines of the service names above (PPP_SERVICE_XXX).
+   */
+  T_RT_DATA                                     rt;
+  T_PRX_DATA                                    prx;
+  T_PTX_DATA                                    ptx;
+  T_FRX_DATA                                    frx;
+  T_FTX_DATA                                    ftx;
+  T_ARB_DATA                                    arb;
+  T_LCP_DATA                                    lcp;
+  T_ONA_DATA                                    ona_base[ONA_NUM_INC];
+  T_ONA_DATA                                    *ona;
+  T_NCP_DATA                                    ncp;
+  T_PAP_DATA                                    pap;
+  T_CHAP_DATA                                   chap;
+
+  /*
+   * global PPP variables
+   */
+
+  UBYTE   mode; /* working mode (client, server or transparent) */
+
+  UBYTE   mc;   /* Max. Configure */
+  UBYTE   mt;   /* Max. Terminate */
+  UBYTE   mf;   /* Max. Failure */
+  T_login  login;  /* CHAP, PAP and AUTO authentication values*/
+
+  U16     ppp_cause;  /* cause of PPP termination */
+
+  USHORT  mru;  /* Maximum Receive Unit */
+  UBYTE   n_hc; /* negotiated header compression */
+
+  ULONG   pco_mask; /* determines PCO content */
+
+  /*
+   * Global variables used by DTILIB.
+   */
+
+  DTI_HANDLE ppphDTI;  /* Handle to DTI Data Base */
+
+  /*
+   * global PPP constants
+   */
+  USHORT*                                       fcstab;
+
+} T_PPP_DATA;
+
+
+/*==== EXPORT =====================================================*/
+
+
+/*
+ * Entity data base
+ */
+
+#ifdef PPP_PEI_C
+T_PPP_DATA ppp_data_base, *ppp_data;
+#else /* PPP_PEI_C */
+EXTERN T_PPP_DATA ppp_data_base, *ppp_data;
+#endif /* PPP_PEI_C */
+
+#define ENTITY_DATA           ppp_data
+
+
+/*
+ * FCS and ACCM lookup tables 
+ */
+
+EXTERN USHORT     fcstab_base[256];
+EXTERN UBYTE      accmtab_base[256];
+
+
+/*
+ * Communication handles (see also PPP_PEI.C, PPP_ARBP.C)
+ */
+#define hCommMMI                ppp_hCommMMI
+#define hCommPPP                ppp_hCommPPP
+#define hCommUPLINK             ppp_hCommUPLINK
+#define hCommDOWNLINK           ppp_hCommDOWNLINK
+/*
+ * make PPP functions unique
+ */
+#define pei_create              _ENTITY_PREFIXED(pei_create)
+#define rt_init                 _ENTITY_PREFIXED(rt_init)
+
+#ifdef PPP_PEI_C
+       T_HANDLE hCommMMI          = VSI_ERROR;
+       T_HANDLE hCommPPP          = VSI_ERROR;
+       T_HANDLE hCommUPLINK       = VSI_ERROR;
+       T_HANDLE hCommDOWNLINK     = VSI_ERROR;
+
+       T_HANDLE PPP_handle;
+
+#else /* PPP_PEI_C */
+  EXTERN T_HANDLE hCommMMI;
+  EXTERN T_HANDLE hCommPPP;
+  EXTERN T_HANDLE hCommUPLINK;
+  EXTERN T_HANDLE hCommDOWNLINK;
+
+  EXTERN T_HANDLE PPP_handle;
+#endif /* PPP_PEI_C */
+
+/*
+ * If all entities are linked into one module this definitions
+ * prefixes the global data with the enity name
+ */
+#ifdef OPTION_MULTITHREAD
+  #define _decodedMsg   _ENTITY_PREFIXED(_decodedMsg)
+#endif /* OPTION_MULTITHREAD */
+#endif /* PPP_H */