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TRANSPRT.H
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TRANSPRT.H
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/*--------------------------------------------------------------------------*/
/* File name: TRANSPRT.H Revision date: 2000.06.14 */
/* Revised by: Ulf Ronald Andersson Revision start: 1999.09.21 */
/* Created by: Peter Rottengatter Creation date: 1996.xx.xx */
/*--------------------------------------------------------------------------*/
/* Header file for all STinG related source files, except those of kernel. */
/*--------------------------------------------------------------------------*/
#ifndef STING_TRANSPRT_H
#define STING_TRANSPRT_H
/*--------------------------------------------------------------------------*/
/* Data types used throughout STinG for portability. (here for Pure_C) */
/*--------------------------------------------------------------------------*/
typedef char int8; /* Signed 8 bit (char) */
typedef unsigned char uint8; /* Unsigned 8 bit (byte, octet) */
typedef int int16; /* Signed 16 bit (int) */
typedef unsigned int uint16; /* Unsigned 16 bit (word) */
typedef long int32; /* Signed 32 bit */
typedef unsigned long uint32; /* Unsigned 32 bit (longword) */
/*--------------------------------------------------------------------------*/
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
/*--------------------------------------------------------------------------*/
/* Driver access structure / functions. */
/*--------------------------------------------------------------------------*/
#define MAGIC "STiKmagic" /* Magic for DRV_LIST.magic */
#define CJTAG "STiK"
typedef struct drv_header
{ /* Header part of TPL structure */
char *module; /* Specific string that can be searched for */
char *author; /* Any string */
char *version; /* Format `00.00' Version:Revision */
} DRV_HDR;
typedef struct drv_list
{
char magic[10]; /* Magic string, defd as MAGIC */
DRV_HDR *cdecl (*get_dftab) (char *); /* Get Driver Function Table */
int16 cdecl (*ETM_exec) (char *); /* Execute a STinG module */
void *cfg; /* Config structure */
BASPAG *sting_basepage; /* STinG basepage address */
} DRV_LIST;
extern DRV_LIST *drivers;
#define get_dftab(x) (*drivers->get_dftab)(x)
#define ETM_exec(x) (*drivers->ETM_exec)(x)
#define TRANSPORT_DRIVER "TRANSPORT_TCPIP"
#define TCP_DRIVER_VERSION "01.00"
/*----------------------------------*/
/* TCP and UDP port escape flags. */
/*----------------------------------*/
#define TCP_ACTIVE 0x0000 /* Initiate active connection */
#define TCP_PASSIVE 0xffff /* Initiate passive connection */
#define UDP_EXTEND 0x0000 /* Extended addressing scheme */
/*----------------------------------*/
/* TCP miscellaneous flags. */
/*----------------------------------*/
#define TCP_URGENT ((void *) -1) /* Mark urgent position */
#define TCP_HALFDUPLEX (-1) /* TCP_close() half duplex */
#define TCP_IMMEDIATE (0) /* TCP_close() immediate */
/*----------------------------------*/
/* TCP connection states. */
/*----------------------------------*/
#define TCLOSED 0 /* No connection. Null, void, absent, ... */
#define TLISTEN 1 /* Wait for remote request */
#define TSYN_SENT 2 /* Connect request sent, await matching request */
#define TSYN_RECV 3 /* Wait for connection ack */
#define TESTABLISH 4 /* Connection established, handshake completed */
#define TFIN_WAIT1 5 /* Await termination request or ack */
#define TFIN_WAIT2 6 /* Await termination request */
#define TCLOSE_WAIT 7 /* Await termination request from local user */
#define TCLOSING 8 /* Await termination ack from remote TCP */
#define TLAST_ACK 9 /* Await ack of terminate request sent */
#define TTIME_WAIT 10 /* Delay, ensures remote has received term' ack */
/*----------------------------------*/
/* UDP connection pseudo states. */
/*----------------------------------*/
#define UCLOSED 0 /* No connection. Null, void, absent, ... */
#define ULISTEN 1 /* Wait for remote request */
#define UESTABLISH 4 /* Connection established, packet received/sent */
/*--------------------------------------------------------------------------*/
/* TCP information block. */
/*--------------------------------------------------------------------------*/
typedef struct tcpib
{ uint32 request; /* 32 bit flags requesting various info (following) */
uint16 state; /* current TCP state */
uint32 unacked; /* unacked outgoing sequence length (incl SYN/FIN) */
uint32 srtt; /* smoothed round trip time of this connection */
} TCPIB;
#define TCPI_state 0x00000001L /* request current TCP state */
#define TCPI_unacked 0x00000002L /* request length of unacked sequence */
#define TCPI_srtt 0x00000004L /* request smoothed round trip time */
#define TCPI_defer 0x00000008L /* request switch to DEFER mode */
#define TCPI_bits 4 /* The number of bits which are defined */
#define TCPI_mask 0x0000000FL /* current sum of defined request bits */
/*--------------------------------------------------------------------------*/
/* NB: A TCP_info request using undefined bits will result in E_PARAMETER. */
/* else the return value will be TCPI_bits, so user knows what we have. */
/* Future additions will use rising bits in sequence, and additions to */
/* the TCPIB struct will always be made at its previous end. */
/*--------------------------------------------------------------------------*/
/* !!! By TCP_info with TCPI_defer, connection is switched to 'DEFER' mode. */
/* This means that all situations where internal looping would occur */
/* will instead lead to exit to the caller with return value E_LOCKED. */
/* Using this mode constitutes agreement to always check for that error */
/* code, which is mainly used for connections using DEFER mode. It may */
/* also be used in some other instances, where a function is blocked in */
/* such a way that internal looping is not possible. */
/*--------------------------------------------------------------------------*/
/* UDP information block. */
/*--------------------------------------------------------------------------*/
typedef struct udpib
{ uint32 request; /* 32 bit flags requesting various info (following) */
uint16 state; /* current UDP pseudo state */
uint32 reserve1; /* reserved */
uint32 reserve2; /* reserved */
} UDPIB;
#define UDPI_state 0x00000001L /* request current UDP pseudo state */
#define UDPI_reserve1 0x00000002L /* reserved */
#define UDPI_reserve2 0x00000004L /* reserved */
#define UDPI_defer 0x00000008L /* request switch to DEFER mode */
#define UDPI_bits 4 /* The number of bits which are defined */
#define UDPI_mask 0x0000000FL /* current sum of defined request bits */
/*--------------------------------------------------------------------------*/
/* NB: A UDP_info request using undefined bits will result in E_PARAMETER. */
/* else the return value will be UDPI_bits, so user knows what we have. */
/* Future additions will use rising bits in sequence, and additions to */
/* the UDPIB struct will always be made at its previous end. */
/*--------------------------------------------------------------------------*/
/* !!! By UDP_info with UDPI_defer, connection is switched to 'DEFER' mode. */
/* This means that all situations where internal looping would occur */
/* will instead lead to exit to the caller with return value E_LOCKED. */
/* Using this mode constitutes agreement to always check for that error */
/* code, which is mainly used for connections using DEFER mode. It may */
/* also be used in some other instances, where a function is blocked in */
/* such a way that internal looping is not possible. */
/*--------------------------------------------------------------------------*/
/* Buffer for inquiring port names. */
/*--------------------------------------------------------------------------*/
typedef struct pnta
{ uint32 opaque; /* Kernel internal data */
int16 name_len; /* Length of port name buffer */
char *port_name; /* Buffer address */
} PNTA;
/*--------------------------------------------------------------------------*/
/* Command opcodes for cntrl_port(). */
/*--------------------------------------------------------------------------*/
#define CTL_KERN_FIRST_PORT (('K' << 8) | 'F') /* Kernel */
#define CTL_KERN_NEXT_PORT (('K' << 8) | 'N') /* Kernel */
#define CTL_KERN_FIND_PORT (('K' << 8) | 'G') /* Kernel */
#define CTL_GENERIC_SET_IP (('G' << 8) | 'H') /* Kernel, all ports */
#define CTL_GENERIC_GET_IP (('G' << 8) | 'I') /* Kernel, all ports */
#define CTL_GENERIC_SET_MASK (('G' << 8) | 'L') /* Kernel, all ports */
#define CTL_GENERIC_GET_MASK (('G' << 8) | 'M') /* Kernel, all ports */
#define CTL_GENERIC_SET_MTU (('G' << 8) | 'N') /* Kernel, all ports */
#define CTL_GENERIC_GET_MTU (('G' << 8) | 'O') /* Kernel, all ports */
#define CTL_GENERIC_GET_MMTU (('G' << 8) | 'P') /* Kernel, all ports */
#define CTL_GENERIC_GET_TYPE (('G' << 8) | 'T') /* Kernel, all ports */
#define CTL_GENERIC_GET_STAT (('G' << 8) | 'S') /* Kernel, all ports */
#define CTL_GENERIC_CLR_STAT (('G' << 8) | 'C') /* Kernel, all ports */
#define CTL_SERIAL_SET_PRTCL (('S' << 8) | 'P') /* Serial Driver */
#define CTL_SERIAL_GET_PRTCL (('S' << 8) | 'Q') /* Serial Driver */
#define CTL_SERIAL_SET_LOGBUFF ('S' << 8 | 'L') /* Serial Driver */
#define CTL_SERIAL_SET_LOGGING ('S' << 8 | 'F') /* Serial Driver */
#define CTL_SERIAL_SET_AUTH (('S' << 8) | 'A') /* Serial Driver */
#define CTL_SERIAL_SET_PAP (('S' << 8) | 'B') /* Serial Driver */
#define CTL_SERIAL_INQ_STATE (('S' << 8) | 'S') /* Serial Driver */
#define CTL_ETHER_SET_MAC (('E' << 8) | 'M') /* EtherNet */
#define CTL_ETHER_GET_MAC (('E' << 8) | 'N') /* EtherNet */
#define CTL_ETHER_INQ_SUPPTYPE (('E' << 8) | 'Q') /* EtherNet */
#define CTL_ETHER_SET_TYPE (('E' << 8) | 'T') /* EtherNet */
#define CTL_ETHER_GET_TYPE (('E' << 8) | 'U') /* EtherNet */
#define CTL_MASQUE_SET_PORT (('M' << 8) | 'P') /* Masquerade */
#define CTL_MASQUE_GET_PORT (('M' << 8) | 'Q') /* Masquerade */
#define CTL_MASQUE_SET_MASKIP (('M' << 8) | 'M') /* Masquerade */
#define CTL_MASQUE_GET_MASKIP (('M' << 8) | 'N') /* Masquerade */
#define CTL_MASQUE_GET_REALIP (('M' << 8) | 'R') /* Masquerade */
/*--------------------------------------------------------------------------*/
/* Handler flag values. */
/*--------------------------------------------------------------------------*/
#define HNDLR_SET 0 /* Set new handler if space */
#define HNDLR_FORCE 1 /* Force new handler to be set */
#define HNDLR_REMOVE 2 /* Remove handler entry */
#define HNDLR_QUERY 3 /* Inquire about handler entry */
/*--------------------------------------------------------------------------*/
/* IP packet header. */
/*--------------------------------------------------------------------------*/
typedef struct ip_header
{ unsigned version : 4; /* IP Version */
unsigned hd_len : 4; /* Internet Header Length */
unsigned tos : 8; /* Type of Service */
uint16 length; /* Total of all header, options and data */
uint16 ident; /* Identification for fragmentation */
unsigned reserved : 1; /* Reserved : Must be zero */
unsigned dont_frg : 1; /* Don't fragment flag */
unsigned more_frg : 1; /* More fragments flag */
unsigned frag_ofst : 13; /* Fragment offset */
uint8 ttl; /* Time to live */
uint8 protocol; /* Protocol */
uint16 hdr_chksum; /* Header checksum */
uint32 ip_src; /* Source IP address */
uint32 ip_dest; /* Destination IP address */
} IP_HDR;
/*--------------------------------------------------------------------------*/
/* Internal IP packet representation. */
/*--------------------------------------------------------------------------*/
typedef struct ip_packet
{ IP_HDR hdr; /* Header of IP packet */
void *options; /* Options data block */
int16 opt_length; /* Length of options data block */
void *pkt_data; /* IP packet data block */
int16 pkt_length; /* Length of IP packet data block */
uint32 timeout; /* Timeout of packet life */
uint32 ip_gateway; /* Gateway for forwarding this packet */
void *recvd; /* Receiving port */
struct ip_packet *next; /* Next IP packet in IP packet queue */
} IP_DGRAM;
/*--------------------------------------------------------------------------*/
/* Values for protocol field in IP headers */
/*--------------------------------------------------------------------------*/
#define P_ICMP 1 /* IP assigned number for ICMP */
#define P_TCP 6 /* IP assigned number for TCP */
#define P_UDP 17 /* IP assigned number for UDP */
/*--------------------------------------------------------------------------*/
/* Input queue structure. */
/*--------------------------------------------------------------------------*/
typedef struct ndb /* Network Data Block. For data delivery */
{ char *ptr; /* Pointer to base of block. (For KRfree();) */
char *ndata; /* Pointer to next data to deliver */
uint16 len; /* Length of remaining data */
struct ndb *next; /* Next NDB in chain or NULL */
} NDB;
/*--------------------------------------------------------------------------*/
/* Addressing information block. */
/*--------------------------------------------------------------------------*/
typedef struct cab
{ uint16 lport; /* TCP local port (ie: local machine) */
uint16 rport; /* TCP remote port (ie: remote machine) */
uint32 rhost; /* TCP remote IP addr (ie: remote machine) */
uint32 lhost; /* TCP local IP addr (ie: local machine) */
} CAB;
/*--------------------------------------------------------------------------*/
/* Connection information block. */
/*--------------------------------------------------------------------------*/
typedef struct cib /* Connection Information Block */
{ uint16 protocol; /* TCP or UDP or ... 0 means CIB is not in use */
CAB address; /* Adress information */
uint16 status; /* Net status. 0 means normal */
} CIB;
/*--------------------------------------------------------------------------*/
/* Transport structure / functions. */
/*--------------------------------------------------------------------------*/
typedef struct tpl
{ char * module; /* Specific string that can be searched for */
char * author; /* Any string */
char * version; /* Format `00.00' Version:Revision */
void * cdecl (* KRmalloc) (int32);
void cdecl (* KRfree) (void *);
int32 cdecl (* KRgetfree) (int16);
void * cdecl (* KRrealloc) (void *, int32);
char * cdecl (* get_err_text) (int16);
char * cdecl (* getvstr) (char *);
int16 cdecl (* carrier_detect) (void);
int16 cdecl (* TCP_open) (uint32, uint16, uint16, uint16);
int16 cdecl (* TCP_close) (int16, int16, int16 *);
int16 cdecl (* TCP_send) (int16, void *, int16);
int16 cdecl (* TCP_wait_state) (int16, int16, int16);
int16 cdecl (* TCP_ack_wait) (int16, int16);
int16 cdecl (* UDP_open) (uint32, uint16);
int16 cdecl (* UDP_close) (int16);
int16 cdecl (* UDP_send) (int16, void *, int16);
int16 cdecl (* CNkick) (int16);
int16 cdecl (* CNbyte_count) (int16);
int16 cdecl (* CNget_char) (int16);
NDB * cdecl (* CNget_NDB) (int16);
int16 cdecl (* CNget_block) (int16, void *, int16);
void cdecl (* housekeep) (void);
int16 cdecl (* resolve) (char *, char **, uint32 *, int16);
void cdecl (* ser_disable) (void);
void cdecl (* ser_enable) (void);
int16 cdecl (* set_flag) (int16);
void cdecl (* clear_flag) (int16);
CIB * cdecl (* CNgetinfo) (int16);
int16 cdecl (* on_port) (char *);
void cdecl (* off_port) (char *);
int16 cdecl (* setvstr) (char *, char *);
int16 cdecl (* query_port) (char *);
int16 cdecl (* CNgets) (int16, char *, int16, char);
int16 cdecl (* ICMP_send) (uint32, uint8, uint8, void *, uint16);
int16 cdecl (* ICMP_handler) (int16 cdecl (*) (IP_DGRAM *), int16);
void cdecl (* ICMP_discard) (IP_DGRAM *);
int16 cdecl (* TCP_info) (int16, TCPIB *);
int16 cdecl (* cntrl_port) (char *, uint32, int16);
int16 cdecl (* UDP_info) (int16, UDPIB *);
int16 cdecl (* RAW_open)(uint32);
int16 cdecl (* RAW_close)(int16);
int16 cdecl (* RAW_out)(int16, void *, int16, uint32);
int16 cdecl (* CN_setopt)(int16, int16, const void *, int16);
int16 cdecl (* CN_getopt)(int16, int16, void *, int16 *);
void cdecl (* CNfree_NDB)(int16, NDB *);
} TPL;
extern TPL *tpl;
/*--------------------------------------------------------------------------*/
/* Definitions of transport functions for direct use. */
/*--------------------------------------------------------------------------*/
#define KRmalloc(x) (*tpl->KRmalloc)(x)
#define KRfree(x) (*tpl->KRfree)(x)
#define KRgetfree(x) (*tpl->KRgetfree)(x)
#define KRrealloc(x,y) (*tpl->KRrealloc)(x,y)
#define get_err_text(x) (*tpl->get_err_text)(x)
#define getvstr(x) (*tpl->getvstr)(x)
#define carrier_detect() (*tpl->carrier_detect)()
#define TCP_open(w,x,y,z) (*tpl->TCP_open)(w,x,y,z)
#define TCP_close(x,y,z) (*tpl->TCP_close)(x,y,z)
#define TCP_send(x,y,z) (*tpl->TCP_send)(x,y,z)
#define TCP_wait_state(x,y,z) (*tpl->TCP_wait_state)(x,y,z)
#define TCP_ack_wait(x,y) (*tpl->TCP_ack_wait)(x,y)
#define UDP_open(x,y) (*tpl->UDP_open)(x,y)
#define UDP_close(x) (*tpl->UDP_close)(x)
#define UDP_send(x,y,z) (*tpl->UDP_send)(x,y,z)
#define CNkick(x) (*tpl->CNkick)(x)
#define CNbyte_count(x) (*tpl->CNbyte_count)(x)
#define CNget_char(x) (*tpl->CNget_char)(x)
#define CNget_NDB(x) (*tpl->CNget_NDB)(x)
#define CNget_block(x,y,z) (*tpl->CNget_block)(x,y,z)
#define CNgetinfo(x) (*tpl->CNgetinfo)(x)
#define CNgets(w,x,y,z) (*tpl->CNgets)(w,x,y,z)
#define housekeep() (*tpl->housekeep)()
#define resolve(w,x,y,z) (*tpl->resolve)(w,x,y,z)
#define ser_disable() (*tpl->ser_disable)()
#define ser_enable() (*tpl->ser_enable)()
#define set_flag(x) (*tpl->set_flag)(x)
#define clear_flag(x) (*tpl->clear_flag)(x)
#define on_port(x) (*tpl->on_port)(x)
#define off_port(x) (*tpl->off_port)(x)
#define setvstr(x,y) (*tpl->setvstr)(x,y)
#define query_port(x) (*tpl->query_port)(x)
#define ICMP_send(v,w,x,y,z) (*tpl->ICMP_send)(v,w,x,y,z)
#define ICMP_handler(x,y) (*tpl->ICMP_handler)(x,y)
#define ICMP_discard(x) (*tpl->ICMP_discard)(x)
#define TCP_info(x,y) (*tpl->TCP_info)(x,y)
#define cntrl_port(x,y,z) (*tpl->cntrl_port)(x,y,z)
#define UDP_info(x,y) (*tpl->UDP_info)(x,y)
#define RAW_open(x) (*tpl->RAW_open)(x)
#define RAW_close(x) (*tpl->RAW_close)(x)
#define RAW_out(w,x,y,z) (*tpl->RAW_out)(w,x,y,z)
#define CN_setopt(w,x,y,z) (*tpl->CN_setopt)(w,x,y,z)
#define CN_getopt(w,x,y,z) (*tpl->CN_getopt)(w,x,y,z)
#define CNfree_NDB(x,y) (*tpl->CNfree_NDB)(x,y)
/*--------------------------------------------------------------------------*/
/* Error return values. */
/*--------------------------------------------------------------------------*/
#define E_NORMAL 0 /* No error occured ... */
#define E_OBUFFULL -1 /* Output buffer is full */
#define E_NODATA -2 /* No data available */
#define E_EOF -3 /* EOF from remote */
#define E_RRESET -4 /* Reset received from remote */
#define E_UA -5 /* Unacceptable packet received, reset */
#define E_NOMEM -6 /* Something failed due to lack of memory */
#define E_REFUSE -7 /* Connection refused by remote */
#define E_BADSYN -8 /* A SYN was received in the window */
#define E_BADHANDLE -9 /* Bad connection handle used. */
#define E_LISTEN -10 /* The connection is in LISTEN state */
#define E_NOCCB -11 /* No free CCB's available */
#define E_NOCONNECTION -12 /* No connection matches this packet (TCP) */
#define E_CONNECTFAIL -13 /* Failure to connect to remote port (TCP) */
#define E_BADCLOSE -14 /* Invalid TCP_close() requested */
#define E_USERTIMEOUT -15 /* A user function timed out */
#define E_CNTIMEOUT -16 /* A connection timed out */
#define E_CANTRESOLVE -17 /* Can't resolve the hostname */
#define E_BADDNAME -18 /* Domain name or dotted dec. bad format */
#define E_LOSTCARRIER -19 /* The modem disconnected */
#define E_NOHOSTNAME -20 /* Hostname does not exist */
#define E_DNSWORKLIMIT -21 /* Resolver Work limit reached */
#define E_NONAMESERVER -22 /* No nameservers could be found for query */
#define E_DNSBADFORMAT -23 /* Bad format of DNS query */
#define E_UNREACHABLE -24 /* Destination unreachable */
#define E_DNSNOADDR -25 /* No address records exist for host */
#define E_NOROUTINE -26 /* Routine unavailable */
#define E_LOCKED -27 /* Locked by another application */
#define E_FRAGMENT -28 /* Error during fragmentation */
#define E_TTLEXCEED -29 /* Time To Live of an IP packet exceeded */
#define E_PARAMETER -30 /* Problem with a parameter */
#define E_BIGBUF -31 /* Input buffer is too small for data */
#define E_FNAVAIL -32 /* Function not available */
#define E_LASTERROR 32 /* ABS of last error code in this list */
/*--------------------------------------------------------------------------*/
#endif /* STING_TRANSPRT_H */
/*--------------------------------------------------------------------------*/
/* End of file: TRANSPRT.H */
/*--------------------------------------------------------------------------*/