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67e3eee454
xemu/slirp/slirp.h
Samuel Thibault 67e3eee454 Avoid embedding struct mbuf in other structures 
struct mbuf uses a C99 open char array to allow inlining data. Inlining
this in another structure is however a GNU extension. The inlines used
so far in struct Slirp were actually only needed as head of struct
mbuf lists. This replaces these inline with mere struct quehead,
and use casts as appropriate.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2016-03-23 00:57:01 +01:00

354 lines
7.9 KiB
C
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#ifndef __COMMON_H__
#define __COMMON_H__
#include "slirp_config.h"
#ifdef _WIN32
typedef char *caddr_t;
# include <windows.h>
# include <winsock2.h>
# include <ws2tcpip.h>
# include <sys/timeb.h>
# include <iphlpapi.h>
#else
# if !defined(__HAIKU__)
# define O_BINARY 0
# endif
#endif
#ifdef HAVE_SYS_BITYPES_H
# include <sys/bitypes.h>
#endif
#ifndef HAVE_MEMMOVE
#define memmove(x, y, z) bcopy(y, x, z)
#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
#ifndef NO_UNIX_SOCKETS
#include <sys/un.h>
#endif
#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
/* Avoid conflicting with the libc insque() and remque(), which
have different prototypes. */
#define insque slirp_insque
#define remque slirp_remque
#define quehead slirp_quehead
#ifdef HAVE_SYS_STROPTS_H
#include <sys/stropts.h>
#endif
#include <glib.h>
#include "debug.h"
#include "qemu/queue.h"
#include "qemu/sockets.h"
#include "net/eth.h"
#include "libslirp.h"
#include "ip.h"
#include "ip6.h"
#include "tcp.h"
#include "tcp_timer.h"
#include "tcp_var.h"
#include "tcpip.h"
#include "udp.h"
#include "ip_icmp.h"
#include "ip6_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 ARPOP_REQUEST 1 /* ARP request */
#define ARPOP_REPLY 2 /* ARP reply */
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 */
};
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 */
} QEMU_PACKED;
#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, uint8_t ethaddr[ETH_ALEN]);
bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
uint8_t out_ethaddr[ETH_ALEN]);
struct ndpentry {
unsigned char eth_addr[ETH_ALEN]; /* sender hardware address */
struct in6_addr ip_addr; /* sender IP address */
} QEMU_PACKED;
#define NDP_TABLE_SIZE 16
typedef struct NdpTable {
struct ndpentry table[NDP_TABLE_SIZE];
int next_victim;
} NdpTable;
void ndp_table_add(Slirp *slirp, struct in6_addr ip_addr,
uint8_t ethaddr[ETH_ALEN]);
bool ndp_table_search(Slirp *slirp, struct in6_addr 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 in6_addr vprefix_addr6;
uint8_t vprefix_len;
struct in6_addr vhost_addr6;
struct in_addr vdhcp_startaddr;
struct in_addr vnameserver_addr;
struct in6_addr vnameserver_addr6;
struct in_addr client_ipaddr;
char client_hostname[33];
int restricted;
struct ex_list *exec_list;
/* mbuf states */
struct quehead m_freelist;
struct quehead m_usedlist;
int mbuf_alloced;
/* if states */
struct quehead if_fastq; /* fast queue (for interactive data) */
struct quehead 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;
NdpTable ndp_table;
GRand *grand;
QEMUTimer *ra_timer;
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);
int ip6_cksum(struct mbuf *m);
/* 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 *);
/* ip6_input.c */
void ip6_init(Slirp *);
void ip6_cleanup(Slirp *);
void ip6_input(struct mbuf *);
/* ip6_output */
int ip6_output(struct socket *, struct mbuf *, int fast);
/* tcp_input.c */
void tcp_input(register struct mbuf *, int, struct socket *, unsigned short af);
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, unsigned short);
struct tcpcb * tcp_newtcpcb(struct socket *);
struct tcpcb * tcp_close(register struct tcpcb *);
void tcp_sockclosed(struct tcpcb *);
int tcp_fconnect(struct socket *, unsigned short af);
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
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