slirp/slirp.h - emulators/simh - Rivoreo Source Code Repositories

 #ifndef __COMMON_H__
 #define __COMMON_H__

 #include "config-host.h"
 #include "slirp_config.h"

 #ifdef _WIN32
 #ifndef _MSC_VER
 # include <inttypes.h>
 #endif

 typedef char *caddr_t;

 # include <windows.h>
 # include <winerror.h>
 # include <winsock2.h>
 # include <ws2tcpip.h>
 # include <sys/timeb.h>
 # include <iphlpapi.h>

 #else
 # define ioctlsocket ioctl
 # define closesocket(s) close(s)
 # if !defined(__HAIKU__)
 #  define O_BINARY 0
 # endif
 #endif

 #include <sys/types.h>
 #ifdef HAVE_SYS_BITYPES_H
 # include <sys/bitypes.h>
 #endif

 #include <sys/time.h>

 #ifdef HAVE_UNISTD_H
 # include <unistd.h>
 #endif

 #ifdef HAVE_STDLIB_H
 # include <stdlib.h>
 #endif

 #include <stdio.h>
 #include <errno.h>

 #ifndef HAVE_MEMMOVE
 #define memmove(x, y, z) bcopy(y, x, z)
 #endif

 #if TIME_WITH_SYS_TIME
 # include <sys/time.h>
 # include <time.h>
 #else
 # ifdef HAVE_SYS_TIME_H
 #  include <sys/time.h>
 # else
 #  include <time.h>
 # endif
 #endif

 #ifdef HAVE_STRING_H
 # include <string.h>
 #else
 # include <strings.h>
 #endif

 #ifndef _WIN32
 #include <sys/uio.h>
 #endif

 #ifndef _WIN32
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #endif

 /* Systems lacking strdup() definition in <string.h>. */
 #if defined(ultrix)
 char *strdup(const char *);
 #endif

 /* Systems lacking malloc() definition in <stdlib.h>. */
 #if defined(ultrix) || defined(hcx)
 void *malloc(size_t arg);
 void free(void *ptr);
 #endif

 #include <fcntl.h>
 #ifndef NO_UNIX_SOCKETS
 #include <sys/un.h>
 #endif
 #include <signal.h>
 #ifdef HAVE_SYS_SIGNAL_H
 # include <sys/signal.h>
 #endif
 #ifndef _WIN32
 #include <sys/socket.h>
 #endif

 #if defined(HAVE_SYS_IOCTL_H)
 # include <sys/ioctl.h>
 #endif

 #ifdef HAVE_SYS_SELECT_H
 # include <sys/select.h>
 #endif

 #ifdef HAVE_SYS_WAIT_H
 # include <sys/wait.h>
 #endif

 #ifdef HAVE_SYS_FILIO_H
 # include <sys/filio.h>
 #endif

 #ifdef USE_PPP
 #include <ppp/slirppp.h>
 #endif

 #ifdef __STDC__
 #include <stdarg.h>
 #else
 #include <varargs.h>
 #endif

 #include <sys/stat.h>

 /* Avoid conflicting with the libc insque() and remque(), which
    have different prototypes. */
 #define insque slirp_insque
 #define remque slirp_remque

 #ifdef HAVE_SYS_STROPTS_H
 #include <sys/stropts.h>
 #endif

 #include "debug.h"

 #include "qemu/queue.h"
 #include "qemu/sockets.h"

 #include "libslirp.h"
 #include "ip.h"
 #include "tcp.h"
 #include "tcp_timer.h"
 #include "tcp_var.h"
 #include "tcpip.h"
 #include "udp.h"
 #include "ip_icmp.h"
 #include "mbuf.h"
 #include "sbuf.h"
 #include "socket.h"
 #include "if.h"
 #include "main.h"
 #include "misc.h"
 #ifdef USE_PPP
 #include "ppp/pppd.h"
 #include "ppp/ppp.h"
 #endif

 #include "bootp.h"
 #include "tftp.h"

 #define ETH_ALEN 6
 #define ETH_HLEN 14

 #define ETH_P_IP  0x0800        /* Internet Protocol packet  */
 #define ETH_P_ARP 0x0806        /* Address Resolution packet */

 #define ARPOP_REQUEST 1         /* ARP request */
 #define ARPOP_REPLY   2         /* ARP reply   */

 PACKED_BEGIN
 struct ethhdr {
     unsigned char  h_dest[ETH_ALEN];   /* destination eth addr */
     unsigned char  h_source[ETH_ALEN]; /* source ether addr    */
     unsigned short h_proto;            /* packet type ID field */
 } PACKED_END;

 PACKED_BEGIN
 struct arphdr {
     unsigned short ar_hrd;      /* format of hardware address */
     unsigned short ar_pro;      /* format of protocol address */
     unsigned char  ar_hln;      /* length of hardware address */
     unsigned char  ar_pln;      /* length of protocol address */
     unsigned short ar_op;       /* ARP opcode (command)       */

     /*
      *  Ethernet looks like this : This bit is variable sized however...
      */
     unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
     uint32_t      ar_sip;           /* sender IP address       */
     unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
     uint32_t      ar_tip;           /* target IP address       */
 } PACKED_END;

 #define ARP_TABLE_SIZE 16

 typedef struct ArpTable {
     struct arphdr table[ARP_TABLE_SIZE];
     int next_victim;
 } ArpTable;

 void arp_table_add(Slirp *slirp, uint32_t ip_addr, const uint8_t ethaddr[ETH_ALEN]);

 bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
                       uint8_t out_ethaddr[ETH_ALEN]);

 struct Slirp {
     QTAILQ_ENTRY(Slirp) entry;
     u_int time_fasttimo;
     u_int last_slowtimo;
     bool do_slowtimo;

     /* virtual network configuration */
     struct in_addr vnetwork_addr;
     struct in_addr vnetwork_mask;
     struct in_addr vhost_addr;
     struct in_addr vdhcp_startaddr;
     struct in_addr vnameserver_addr;

     struct in_addr client_ipaddr;
     char client_hostname[33];

     int restricted;
     struct ex_list *exec_list;

     /* mbuf states */
     struct mbuf m_freelist, m_usedlist;
     int mbuf_alloced;

     /* if states */
     struct mbuf if_fastq;   /* fast queue (for interactive data) */
     struct mbuf if_batchq;  /* queue for non-interactive data */
     struct mbuf *next_m;    /* pointer to next mbuf to output */
     bool if_start_busy;     /* avoid if_start recursion */

     /* ip states */
     struct ipq ipq;         /* ip reass. queue */
     uint16_t ip_id;         /* ip packet ctr, for ids */

     /* bootp/dhcp states */
     BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
     char *bootp_filename;
     size_t vdnssearch_len;
     uint8_t *vdnssearch;

     /* tcp states */
     struct socket tcb;
     struct socket *tcp_last_so;
     tcp_seq tcp_iss;        /* tcp initial send seq # */
     uint32_t tcp_now;       /* for RFC 1323 timestamps */

     /* udp states */
     struct socket udb;
     struct socket *udp_last_so;

     /* icmp states */
     struct socket icmp;
     struct socket *icmp_last_so;

     /* tftp states */
     char *tftp_prefix;
     struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];

     ArpTable arp_table;

     void *opaque;
 };

 extern Slirp *slirp_instance;

 #ifndef NULL
 #define NULL (void *)0
 #endif

 #ifndef FULL_BOLT
 void if_start(Slirp *);
 #else
 void if_start(struct ttys *);
 #endif

 #ifndef HAVE_STRERROR
  char *strerror(int error);
 #endif

 #ifndef HAVE_INDEX
  char *index(const char *, int);
 #endif

 #ifndef HAVE_GETHOSTID
  long gethostid(void);
 #endif

 #ifndef _WIN32
 #include <netdb.h>
 #endif

 #define DEFAULT_BAUD 115200

 #define SO_OPTIONS DO_KEEPALIVE
 #define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)

 /* dnssearch.c */
 int translate_dnssearch(Slirp *s, const char ** names);

 /* cksum.c */
 int cksum(struct mbuf *m, int len);

 /* if.c */
 void if_init(Slirp *);
 void if_output(struct socket *, struct mbuf *);

 /* ip_input.c */
 void ip_init(Slirp *);
 void ip_cleanup(Slirp *);
 void ip_input(struct mbuf *);
 void ip_slowtimo(Slirp *);
 void ip_stripoptions(register struct mbuf *, struct mbuf *);

 /* ip_output.c */
 int ip_output(struct socket *, struct mbuf *);

 /* tcp_input.c */
 void tcp_input(register struct mbuf *, int, struct socket *);
 int tcp_mss(register struct tcpcb *, u_int);

 /* tcp_output.c */
 int tcp_output(register struct tcpcb *);
 void tcp_setpersist(register struct tcpcb *);

 /* tcp_subr.c */
 void tcp_init(Slirp *);
 void tcp_cleanup(Slirp *);
 void tcp_template(struct tcpcb *);
 void tcp_respond(struct tcpcb *, register struct tcpiphdr *, register struct mbuf *, tcp_seq, tcp_seq, int);
 struct tcpcb * tcp_newtcpcb(struct socket *);
 struct tcpcb * tcp_close(register struct tcpcb *);
 void tcp_sockclosed(struct tcpcb *);
 int tcp_fconnect(struct socket *);
 void tcp_connect(struct socket *);
 int tcp_attach(struct socket *);
 uint8_t tcp_tos(struct socket *);
 int tcp_emu(struct socket *, struct mbuf *);
 int tcp_ctl(struct socket *);
 struct tcpcb *tcp_drop(struct tcpcb *tp, int err);

 #ifdef USE_PPP
 #define MIN_MRU MINMRU
 #define MAX_MRU MAXMRU
 #else
 #define MIN_MRU 128
 #define MAX_MRU 16384
 #endif

 #ifndef _WIN32
 #define min(x,y) ((x) < (y) ? (x) : (y))
 #define max(x,y) ((x) > (y) ? (x) : (y))
 #endif

 #ifdef _WIN32
 #undef errno
 #define errno (WSAGetLastError())
 #endif

 #endif
	#ifndef __COMMON_H__
	#define __COMMON_H__

	#include "config-host.h"
	#include "slirp_config.h"

	#ifdef _WIN32
	#ifndef _MSC_VER
	# include <inttypes.h>
	#endif

	typedef char *caddr_t;

	# include <windows.h>
	# include <winerror.h>
	# include <winsock2.h>
	# include <ws2tcpip.h>
	# include <sys/timeb.h>
	# include <iphlpapi.h>

	#else
	# define ioctlsocket ioctl
	# define closesocket(s) close(s)
	# if !defined(__HAIKU__)
	# define O_BINARY 0
	# endif
	#endif

	#include <sys/types.h>
	#ifdef HAVE_SYS_BITYPES_H
	# include <sys/bitypes.h>
	#endif

	#include <sys/time.h>

	#ifdef HAVE_UNISTD_H
	# include <unistd.h>
	#endif

	#ifdef HAVE_STDLIB_H
	# include <stdlib.h>
	#endif

	#include <stdio.h>
	#include <errno.h>

	#ifndef HAVE_MEMMOVE
	#define memmove(x, y, z) bcopy(y, x, z)
	#endif

	#if TIME_WITH_SYS_TIME
	# include <sys/time.h>
	# include <time.h>
	#else
	# ifdef HAVE_SYS_TIME_H
	# include <sys/time.h>
	# else
	# include <time.h>
	# endif
	#endif

	#ifdef HAVE_STRING_H
	# include <string.h>
	#else
	# include <strings.h>
	#endif

	#ifndef _WIN32
	#include <sys/uio.h>
	#endif

	#ifndef _WIN32
	#include <netinet/in.h>
	#include <arpa/inet.h>
	#endif

	/* Systems lacking strdup() definition in <string.h>. */
	#if defined(ultrix)
	char strdup(const char );
	#endif

	/* Systems lacking malloc() definition in <stdlib.h>. */
	#if defined(ultrix) \|\| defined(hcx)
	void *malloc(size_t arg);
	void free(void *ptr);
	#endif

	#include <fcntl.h>
	#ifndef NO_UNIX_SOCKETS
	#include <sys/un.h>
	#endif
	#include <signal.h>
	#ifdef HAVE_SYS_SIGNAL_H
	# include <sys/signal.h>
	#endif
	#ifndef _WIN32
	#include <sys/socket.h>
	#endif

	#if defined(HAVE_SYS_IOCTL_H)
	# include <sys/ioctl.h>
	#endif

	#ifdef HAVE_SYS_SELECT_H
	# include <sys/select.h>
	#endif

	#ifdef HAVE_SYS_WAIT_H
	# include <sys/wait.h>
	#endif

	#ifdef HAVE_SYS_FILIO_H
	# include <sys/filio.h>
	#endif

	#ifdef USE_PPP
	#include <ppp/slirppp.h>
	#endif

	#ifdef __STDC__
	#include <stdarg.h>
	#else
	#include <varargs.h>
	#endif

	#include <sys/stat.h>

	/* Avoid conflicting with the libc insque() and remque(), which
	have different prototypes. */
	#define insque slirp_insque
	#define remque slirp_remque

	#ifdef HAVE_SYS_STROPTS_H
	#include <sys/stropts.h>
	#endif

	#include "debug.h"

	#include "qemu/queue.h"
	#include "qemu/sockets.h"

	#include "libslirp.h"
	#include "ip.h"
	#include "tcp.h"
	#include "tcp_timer.h"
	#include "tcp_var.h"
	#include "tcpip.h"
	#include "udp.h"
	#include "ip_icmp.h"
	#include "mbuf.h"
	#include "sbuf.h"
	#include "socket.h"
	#include "if.h"
	#include "main.h"
	#include "misc.h"
	#ifdef USE_PPP
	#include "ppp/pppd.h"
	#include "ppp/ppp.h"
	#endif

	#include "bootp.h"
	#include "tftp.h"

	#define ETH_ALEN 6
	#define ETH_HLEN 14

	#define ETH_P_IP 0x0800 /* Internet Protocol packet */
	#define ETH_P_ARP 0x0806 /* Address Resolution packet */

	#define ARPOP_REQUEST 1 /* ARP request */
	#define ARPOP_REPLY 2 /* ARP reply */

	PACKED_BEGIN
	struct ethhdr {
	unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
	unsigned char h_source[ETH_ALEN]; /* source ether addr */
	unsigned short h_proto; /* packet type ID field */
	} PACKED_END;

	PACKED_BEGIN
	struct arphdr {
	unsigned short ar_hrd; /* format of hardware address */
	unsigned short ar_pro; /* format of protocol address */
	unsigned char ar_hln; /* length of hardware address */
	unsigned char ar_pln; /* length of protocol address */
	unsigned short ar_op; /* ARP opcode (command) */

	/*
	* Ethernet looks like this : This bit is variable sized however...
	*/
	unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
	uint32_t ar_sip; /* sender IP address */
	unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
	uint32_t ar_tip; /* target IP address */
	} PACKED_END;

	#define ARP_TABLE_SIZE 16

	typedef struct ArpTable {
	struct arphdr table[ARP_TABLE_SIZE];
	int next_victim;
	} ArpTable;

	void arp_table_add(Slirp *slirp, uint32_t ip_addr, const uint8_t ethaddr[ETH_ALEN]);

	bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
	uint8_t out_ethaddr[ETH_ALEN]);

	struct Slirp {
	QTAILQ_ENTRY(Slirp) entry;
	u_int time_fasttimo;
	u_int last_slowtimo;
	bool do_slowtimo;

	/* virtual network configuration */
	struct in_addr vnetwork_addr;
	struct in_addr vnetwork_mask;
	struct in_addr vhost_addr;
	struct in_addr vdhcp_startaddr;
	struct in_addr vnameserver_addr;

	struct in_addr client_ipaddr;
	char client_hostname[33];

	int restricted;
	struct ex_list *exec_list;

	/* mbuf states */
	struct mbuf m_freelist, m_usedlist;
	int mbuf_alloced;

	/* if states */
	struct mbuf if_fastq; /* fast queue (for interactive data) */
	struct mbuf if_batchq; /* queue for non-interactive data */
	struct mbuf next_m; / pointer to next mbuf to output */
	bool if_start_busy; /* avoid if_start recursion */

	/* ip states */
	struct ipq ipq; /* ip reass. queue */
	uint16_t ip_id; /* ip packet ctr, for ids */

	/* bootp/dhcp states */
	BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
	char *bootp_filename;
	size_t vdnssearch_len;
	uint8_t *vdnssearch;

	/* tcp states */
	struct socket tcb;
	struct socket *tcp_last_so;
	tcp_seq tcp_iss; /* tcp initial send seq # */
	uint32_t tcp_now; /* for RFC 1323 timestamps */

	/* udp states */
	struct socket udb;
	struct socket *udp_last_so;

	/* icmp states */
	struct socket icmp;
	struct socket *icmp_last_so;

	/* tftp states */
	char *tftp_prefix;
	struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];

	ArpTable arp_table;

	void *opaque;
	};

	extern Slirp *slirp_instance;

	#ifndef NULL
	#define NULL (void *)0
	#endif

	#ifndef FULL_BOLT
	void if_start(Slirp *);
	#else
	void if_start(struct ttys *);
	#endif

	#ifndef HAVE_STRERROR
	char *strerror(int error);
	#endif

	#ifndef HAVE_INDEX
	char index(const char , int);
	#endif

	#ifndef HAVE_GETHOSTID
	long gethostid(void);
	#endif

	#ifndef _WIN32
	#include <netdb.h>
	#endif

	#define DEFAULT_BAUD 115200

	#define SO_OPTIONS DO_KEEPALIVE
	#define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)

	/* dnssearch.c */
	int translate_dnssearch(Slirp s, const char * names);

	/* cksum.c */
	int cksum(struct mbuf *m, int len);

	/* if.c */
	void if_init(Slirp *);
	void if_output(struct socket , struct mbuf );

	/* ip_input.c */
	void ip_init(Slirp *);
	void ip_cleanup(Slirp *);
	void ip_input(struct mbuf *);
	void ip_slowtimo(Slirp *);
	void ip_stripoptions(register struct mbuf , struct mbuf );

	/* ip_output.c */
	int ip_output(struct socket , struct mbuf );

	/* tcp_input.c */
	void tcp_input(register struct mbuf , int, struct socket );
	int tcp_mss(register struct tcpcb *, u_int);

	/* tcp_output.c */
	int tcp_output(register struct tcpcb *);
	void tcp_setpersist(register struct tcpcb *);

	/* tcp_subr.c */
	void tcp_init(Slirp *);
	void tcp_cleanup(Slirp *);
	void tcp_template(struct tcpcb *);
	void tcp_respond(struct tcpcb , register struct tcpiphdr , register struct mbuf *, tcp_seq, tcp_seq, int);
	struct tcpcb * tcp_newtcpcb(struct socket *);
	struct tcpcb * tcp_close(register struct tcpcb *);
	void tcp_sockclosed(struct tcpcb *);
	int tcp_fconnect(struct socket *);
	void tcp_connect(struct socket *);
	int tcp_attach(struct socket *);
	uint8_t tcp_tos(struct socket *);
	int tcp_emu(struct socket , struct mbuf );
	int tcp_ctl(struct socket *);
	struct tcpcb tcp_drop(struct tcpcb tp, int err);

	#ifdef USE_PPP
	#define MIN_MRU MINMRU
	#define MAX_MRU MAXMRU
	#else
	#define MIN_MRU 128
	#define MAX_MRU 16384
	#endif

	#ifndef _WIN32
	#define min(x,y) ((x) < (y) ? (x) : (y))
	#define max(x,y) ((x) > (y) ? (x) : (y))
	#endif

	#ifdef _WIN32
	#undef errno
	#define errno (WSAGetLastError())
	#endif

	#endif