389 lines
8.1 KiB
C
389 lines
8.1 KiB
C
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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#ifndef __COMMON_H__
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#define __COMMON_H__
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#include "config.h"
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#include "slirp_config.h"
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#if defined(WIN32) && !defined(__CYGWIN__)
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#if !defined(_MSC_VER)
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# include <inttypes.h>
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#endif
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typedef char *caddr_t;
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#ifndef WIN32_LEAN_AND_MEAN
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# define WIN32_LEAN_AND_MEAN
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#endif
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# include <winsock2.h>
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# include <ws2tcpip.h>
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# include <sys/timeb.h>
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# include <iphlpapi.h>
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#else
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# define ioctlsocket ioctl
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# define closesocket(s) close(s)
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# if !defined(__HAIKU__) && !defined(__CYGWIN__)
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# define O_BINARY 0
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# endif
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#endif
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#include <sys/types.h>
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#if defined(__OpenBSD__)
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#include <stdint.h>
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#include <sys/wait.h>
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#endif
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#ifdef HAVE_SYS_BITYPES_H
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# include <sys/bitypes.h>
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#endif
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#if !defined(_MSC_VER)
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#include <sys/time.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#endif
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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#include <stdio.h>
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#include <errno.h>
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#ifndef HAVE_MEMMOVE
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#define memmove(x, y, z) bcopy(y, x, z)
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#endif
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#if TIME_WITH_SYS_TIME
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# include <sys/time.h>
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# include <time.h>
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#else
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# ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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# else
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# include <time.h>
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# endif
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#else
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# include <strings.h>
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#endif
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#ifndef _WIN32
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#include <sys/uio.h>
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#endif
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#ifndef _WIN32
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#endif
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/* Systems lacking strdup() definition in <string.h>. */
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#if defined(ultrix)
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char *strdup(const char *);
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#endif
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/* Systems lacking malloc() definition in <stdlib.h>. */
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#if defined(ultrix) || defined(hcx)
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void *malloc(size_t arg);
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void free(void *ptr);
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#endif
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#include <fcntl.h>
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#ifndef NO_UNIX_SOCKETS
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#include <sys/un.h>
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#endif
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#include <signal.h>
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#ifdef HAVE_SYS_SIGNAL_H
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# include <sys/signal.h>
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#endif
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#ifndef _WIN32
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#include <sys/socket.h>
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#endif
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#if defined(HAVE_SYS_IOCTL_H)
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# include <sys/ioctl.h>
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#endif
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#ifdef HAVE_SYS_SELECT_H
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# include <sys/select.h>
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#endif
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#ifdef HAVE_SYS_WAIT_H
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# include <sys/wait.h>
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#endif
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#ifdef HAVE_SYS_FILIO_H
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# include <sys/filio.h>
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#endif
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#ifdef USE_PPP
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#include <ppp/slirppp.h>
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#endif
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#ifdef __STDC__
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include <sys/stat.h>
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/* Avoid conflicting with the libc insque() and remque(), which
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have different prototypes. */
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#define insque slirp_insque
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#define remque slirp_remque
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#ifdef HAVE_SYS_STROPTS_H
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#include <sys/stropts.h>
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#endif
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#include "debug.h"
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#include "libslirp.h"
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#include "ip.h"
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#include "tcp.h"
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#include "tcp_timer.h"
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#include "tcp_var.h"
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#include "tcpip.h"
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#include "udp.h"
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#include "ip_icmp.h"
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#include "mbuf.h"
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#include "sbuf.h"
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#include "socket.h"
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#include "if.h"
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#include "main.h"
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#include "misc.h"
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#ifdef USE_PPP
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#include "ppp/pppd.h"
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#include "ppp/ppp.h"
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#endif
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#include "bootp.h"
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#include "tftp.h"
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#define ETH_ALEN 6
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#define ETH_HLEN 14
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#define ETH_P_IP 0x0800 /* Internet Protocol packet */
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#define ETH_P_ARP 0x0806 /* Address Resolution packet */
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#define ARPOP_REQUEST 1 /* ARP request */
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#define ARPOP_REPLY 2 /* ARP reply */
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struct ethhdr {
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unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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unsigned char h_source[ETH_ALEN]; /* source ether addr */
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unsigned short h_proto; /* packet type ID field */
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};
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#if defined(_MSC_VER)
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#pragma pack(push, 1)
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#endif
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struct arphdr {
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unsigned short ar_hrd; /* format of hardware address */
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unsigned short ar_pro; /* format of protocol address */
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unsigned char ar_hln; /* length of hardware address */
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unsigned char ar_pln; /* length of protocol address */
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unsigned short ar_op; /* ARP opcode (command) */
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/*
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* Ethernet looks like this : This bit is variable sized however...
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*/
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unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
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uint32_t ar_sip; /* sender IP address */
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unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
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uint32_t ar_tip; /* target IP address */
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} GCC_ATTRIBUTE((packed));
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#if defined(_MSC_VER)
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#pragma pack(pop)
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#endif
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#define ARP_TABLE_SIZE 16
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typedef struct ArpTable {
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struct arphdr table[ARP_TABLE_SIZE];
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int next_victim;
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} ArpTable;
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void arp_table_add(Slirp *slirp, uint32_t ip_addr, uint8_t ethaddr[ETH_ALEN]);
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bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
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uint8_t out_ethaddr[ETH_ALEN]);
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struct Slirp {
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QTAILQ_ENTRY(Slirp) entry;
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u_int time_fasttimo;
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u_int last_slowtimo;
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bool do_slowtimo;
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/* virtual network configuration */
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struct in_addr vnetwork_addr;
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struct in_addr vnetwork_mask;
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struct in_addr vhost_addr;
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struct in_addr vdhcp_startaddr;
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struct in_addr vnameserver_addr;
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struct in_addr client_ipaddr;
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char client_hostname[33];
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int restricted;
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struct ex_list *exec_list;
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/* mbuf states */
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struct mbuf m_freelist, m_usedlist;
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int mbuf_alloced;
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/* if states */
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struct mbuf if_fastq; /* fast queue (for interactive data) */
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struct mbuf if_batchq; /* queue for non-interactive data */
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struct mbuf *next_m; /* pointer to next mbuf to output */
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bool if_start_busy; /* avoid if_start recursion */
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/* ip states */
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struct ipq ipq; /* ip reass. queue */
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uint16_t ip_id; /* ip packet ctr, for ids */
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/* bootp/dhcp states */
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BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
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char *bootp_filename;
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size_t vdnssearch_len;
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uint8_t *vdnssearch;
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/* tcp states */
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struct socket tcb;
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struct socket *tcp_last_so;
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tcp_seq tcp_iss; /* tcp initial send seq # */
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uint32_t tcp_now; /* for RFC 1323 timestamps */
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/* udp states */
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struct socket udb;
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struct socket *udp_last_so;
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/* icmp states */
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struct socket icmp;
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struct socket *icmp_last_so;
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/* tftp states */
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char *tftp_prefix;
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struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
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ArpTable arp_table;
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void *opaque;
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void *logfn;
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};
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extern Slirp *slirp_instance;
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#ifndef NULL
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#define NULL (void *)0
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#endif
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#ifndef FULL_BOLT
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void if_start(Slirp *);
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#else
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void if_start(struct ttys *);
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#endif
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#ifndef HAVE_STRERROR
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char *strerror(int error);
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#endif
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#ifndef HAVE_INDEX
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char *index(const char *, int);
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#endif
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#ifndef HAVE_GETHOSTID
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long gethostid(void);
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#endif
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void slirp_warning(Slirp *, const char *);
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#ifndef _WIN32
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#include <netdb.h>
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#endif
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#define DEFAULT_BAUD 115200
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#define SO_OPTIONS DO_KEEPALIVE
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#define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
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/* dnssearch.c */
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int translate_dnssearch(Slirp *s, const char ** names);
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/* cksum.c */
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int cksum(struct mbuf *m, int len);
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/* if.c */
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void if_init(Slirp *);
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void if_output(struct socket *, struct mbuf *);
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/* ip_input.c */
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void ip_init(Slirp *);
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void ip_cleanup(Slirp *);
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void ip_input(struct mbuf *);
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void ip_slowtimo(Slirp *);
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void ip_stripoptions(register struct mbuf *, struct mbuf *);
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/* ip_output.c */
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int ip_output(struct socket *, struct mbuf *);
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/* tcp_input.c */
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void tcp_input(register struct mbuf *, int, struct socket *);
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int tcp_mss(register struct tcpcb *, u_int);
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/* tcp_output.c */
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int tcp_output(register struct tcpcb *);
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void tcp_setpersist(register struct tcpcb *);
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/* tcp_subr.c */
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void tcp_init(Slirp *);
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void tcp_cleanup(Slirp *);
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void tcp_template(struct tcpcb *);
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void tcp_respond(struct tcpcb *, register struct tcpiphdr *, register struct mbuf *, tcp_seq, tcp_seq, int);
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struct tcpcb * tcp_newtcpcb(struct socket *);
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struct tcpcb * tcp_close(register struct tcpcb *);
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void tcp_sockclosed(struct tcpcb *);
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int tcp_fconnect(struct socket *);
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void tcp_connect(struct socket *);
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int tcp_attach(struct socket *);
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uint8_t tcp_tos(struct socket *);
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int tcp_emu(struct socket *, struct mbuf *);
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int tcp_ctl(struct socket *);
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struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
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#ifdef USE_PPP
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#define MIN_MRU MINMRU
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#define MAX_MRU MAXMRU
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#else
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#define MIN_MRU 128
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#define MAX_MRU 16384
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#endif
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#ifndef min
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#define min(x,y) ((x) < (y) ? (x) : (y))
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#endif
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#ifndef max
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#define max(x,y) ((x) > (y) ? (x) : (y))
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#endif
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#ifdef _WIN32
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#undef errno
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#define errno (WSAGetLastError())
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#endif
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#endif
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