acl: fix memory leak
[qemu.git] / slirp / slirp.h
1 #ifndef __COMMON_H__
2 #define __COMMON_H__
3
4 #include "config-host.h"
5 #include "slirp_config.h"
6
7 #ifdef _WIN32
8 # include <inttypes.h>
9
10 typedef char *caddr_t;
11
12 # include <windows.h>
13 # include <winsock2.h>
14 # include <ws2tcpip.h>
15 # include <sys/timeb.h>
16 # include <iphlpapi.h>
17
18 #else
19 # define ioctlsocket ioctl
20 # define closesocket(s) close(s)
21 # if !defined(__HAIKU__)
22 # define O_BINARY 0
23 # endif
24 #endif
25
26 #include <sys/types.h>
27 #ifdef HAVE_SYS_BITYPES_H
28 # include <sys/bitypes.h>
29 #endif
30
31 #include <sys/time.h>
32
33 #ifdef HAVE_UNISTD_H
34 # include <unistd.h>
35 #endif
36
37 #ifdef HAVE_STDLIB_H
38 # include <stdlib.h>
39 #endif
40
41 #include <stdio.h>
42 #include <errno.h>
43
44 #ifndef HAVE_MEMMOVE
45 #define memmove(x, y, z) bcopy(y, x, z)
46 #endif
47
48 #if TIME_WITH_SYS_TIME
49 # include <sys/time.h>
50 # include <time.h>
51 #else
52 # ifdef HAVE_SYS_TIME_H
53 # include <sys/time.h>
54 # else
55 # include <time.h>
56 # endif
57 #endif
58
59 #ifdef HAVE_STRING_H
60 # include <string.h>
61 #else
62 # include <strings.h>
63 #endif
64
65 #ifndef _WIN32
66 #include <sys/uio.h>
67 #endif
68
69 #ifndef _WIN32
70 #include <netinet/in.h>
71 #include <arpa/inet.h>
72 #endif
73
74 /* Systems lacking strdup() definition in <string.h>. */
75 #if defined(ultrix)
76 char *strdup(const char *);
77 #endif
78
79 /* Systems lacking malloc() definition in <stdlib.h>. */
80 #if defined(ultrix) || defined(hcx)
81 void *malloc(size_t arg);
82 void free(void *ptr);
83 #endif
84
85 #include <fcntl.h>
86 #ifndef NO_UNIX_SOCKETS
87 #include <sys/un.h>
88 #endif
89 #include <signal.h>
90 #ifdef HAVE_SYS_SIGNAL_H
91 # include <sys/signal.h>
92 #endif
93 #ifndef _WIN32
94 #include <sys/socket.h>
95 #endif
96
97 #if defined(HAVE_SYS_IOCTL_H)
98 # include <sys/ioctl.h>
99 #endif
100
101 #ifdef HAVE_SYS_SELECT_H
102 # include <sys/select.h>
103 #endif
104
105 #ifdef HAVE_SYS_WAIT_H
106 # include <sys/wait.h>
107 #endif
108
109 #ifdef HAVE_SYS_FILIO_H
110 # include <sys/filio.h>
111 #endif
112
113 #ifdef USE_PPP
114 #include <ppp/slirppp.h>
115 #endif
116
117 #ifdef __STDC__
118 #include <stdarg.h>
119 #else
120 #include <varargs.h>
121 #endif
122
123 #include <sys/stat.h>
124
125 /* Avoid conflicting with the libc insque() and remque(), which
126 have different prototypes. */
127 #define insque slirp_insque
128 #define remque slirp_remque
129
130 #ifdef HAVE_SYS_STROPTS_H
131 #include <sys/stropts.h>
132 #endif
133
134 #include "debug.h"
135
136 #include "qemu/queue.h"
137 #include "qemu/sockets.h"
138
139 #include "libslirp.h"
140 #include "ip.h"
141 #include "tcp.h"
142 #include "tcp_timer.h"
143 #include "tcp_var.h"
144 #include "tcpip.h"
145 #include "udp.h"
146 #include "ip_icmp.h"
147 #include "mbuf.h"
148 #include "sbuf.h"
149 #include "socket.h"
150 #include "if.h"
151 #include "main.h"
152 #include "misc.h"
153 #ifdef USE_PPP
154 #include "ppp/pppd.h"
155 #include "ppp/ppp.h"
156 #endif
157
158 #include "bootp.h"
159 #include "tftp.h"
160
161 #define ETH_ALEN 6
162 #define ETH_HLEN 14
163
164 #define ETH_P_IP 0x0800 /* Internet Protocol packet */
165 #define ETH_P_ARP 0x0806 /* Address Resolution packet */
166
167 #define ARPOP_REQUEST 1 /* ARP request */
168 #define ARPOP_REPLY 2 /* ARP reply */
169
170 struct ethhdr {
171 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
172 unsigned char h_source[ETH_ALEN]; /* source ether addr */
173 unsigned short h_proto; /* packet type ID field */
174 };
175
176 struct arphdr {
177 unsigned short ar_hrd; /* format of hardware address */
178 unsigned short ar_pro; /* format of protocol address */
179 unsigned char ar_hln; /* length of hardware address */
180 unsigned char ar_pln; /* length of protocol address */
181 unsigned short ar_op; /* ARP opcode (command) */
182
183 /*
184 * Ethernet looks like this : This bit is variable sized however...
185 */
186 unsigned char ar_sha[ETH_ALEN]; /* sender hardware address */
187 uint32_t ar_sip; /* sender IP address */
188 unsigned char ar_tha[ETH_ALEN]; /* target hardware address */
189 uint32_t ar_tip; /* target IP address */
190 } QEMU_PACKED;
191
192 #define ARP_TABLE_SIZE 16
193
194 typedef struct ArpTable {
195 struct arphdr table[ARP_TABLE_SIZE];
196 int next_victim;
197 } ArpTable;
198
199 void arp_table_add(Slirp *slirp, uint32_t ip_addr, uint8_t ethaddr[ETH_ALEN]);
200
201 bool arp_table_search(Slirp *slirp, uint32_t ip_addr,
202 uint8_t out_ethaddr[ETH_ALEN]);
203
204 struct Slirp {
205 QTAILQ_ENTRY(Slirp) entry;
206 u_int time_fasttimo;
207 u_int last_slowtimo;
208 bool do_slowtimo;
209
210 /* virtual network configuration */
211 struct in_addr vnetwork_addr;
212 struct in_addr vnetwork_mask;
213 struct in_addr vhost_addr;
214 struct in_addr vdhcp_startaddr;
215 struct in_addr vnameserver_addr;
216
217 struct in_addr client_ipaddr;
218 char client_hostname[33];
219
220 int restricted;
221 struct ex_list *exec_list;
222
223 /* mbuf states */
224 struct mbuf m_freelist, m_usedlist;
225 int mbuf_alloced;
226
227 /* if states */
228 struct mbuf if_fastq; /* fast queue (for interactive data) */
229 struct mbuf if_batchq; /* queue for non-interactive data */
230 struct mbuf *next_m; /* pointer to next mbuf to output */
231 bool if_start_busy; /* avoid if_start recursion */
232
233 /* ip states */
234 struct ipq ipq; /* ip reass. queue */
235 uint16_t ip_id; /* ip packet ctr, for ids */
236
237 /* bootp/dhcp states */
238 BOOTPClient bootp_clients[NB_BOOTP_CLIENTS];
239 char *bootp_filename;
240 size_t vdnssearch_len;
241 uint8_t *vdnssearch;
242
243 /* tcp states */
244 struct socket tcb;
245 struct socket *tcp_last_so;
246 tcp_seq tcp_iss; /* tcp initial send seq # */
247 uint32_t tcp_now; /* for RFC 1323 timestamps */
248
249 /* udp states */
250 struct socket udb;
251 struct socket *udp_last_so;
252
253 /* icmp states */
254 struct socket icmp;
255 struct socket *icmp_last_so;
256
257 /* tftp states */
258 char *tftp_prefix;
259 struct tftp_session tftp_sessions[TFTP_SESSIONS_MAX];
260
261 ArpTable arp_table;
262
263 void *opaque;
264 };
265
266 extern Slirp *slirp_instance;
267
268 #ifndef NULL
269 #define NULL (void *)0
270 #endif
271
272 #ifndef FULL_BOLT
273 void if_start(Slirp *);
274 #else
275 void if_start(struct ttys *);
276 #endif
277
278 #ifndef HAVE_STRERROR
279 char *strerror(int error);
280 #endif
281
282 #ifndef HAVE_INDEX
283 char *index(const char *, int);
284 #endif
285
286 #ifndef HAVE_GETHOSTID
287 long gethostid(void);
288 #endif
289
290 #ifndef _WIN32
291 #include <netdb.h>
292 #endif
293
294 #define DEFAULT_BAUD 115200
295
296 #define SO_OPTIONS DO_KEEPALIVE
297 #define TCP_MAXIDLE (TCPTV_KEEPCNT * TCPTV_KEEPINTVL)
298
299 /* dnssearch.c */
300 int translate_dnssearch(Slirp *s, const char ** names);
301
302 /* cksum.c */
303 int cksum(struct mbuf *m, int len);
304
305 /* if.c */
306 void if_init(Slirp *);
307 void if_output(struct socket *, struct mbuf *);
308
309 /* ip_input.c */
310 void ip_init(Slirp *);
311 void ip_cleanup(Slirp *);
312 void ip_input(struct mbuf *);
313 void ip_slowtimo(Slirp *);
314 void ip_stripoptions(register struct mbuf *, struct mbuf *);
315
316 /* ip_output.c */
317 int ip_output(struct socket *, struct mbuf *);
318
319 /* tcp_input.c */
320 void tcp_input(register struct mbuf *, int, struct socket *);
321 int tcp_mss(register struct tcpcb *, u_int);
322
323 /* tcp_output.c */
324 int tcp_output(register struct tcpcb *);
325 void tcp_setpersist(register struct tcpcb *);
326
327 /* tcp_subr.c */
328 void tcp_init(Slirp *);
329 void tcp_cleanup(Slirp *);
330 void tcp_template(struct tcpcb *);
331 void tcp_respond(struct tcpcb *, register struct tcpiphdr *, register struct mbuf *, tcp_seq, tcp_seq, int);
332 struct tcpcb * tcp_newtcpcb(struct socket *);
333 struct tcpcb * tcp_close(register struct tcpcb *);
334 void tcp_sockclosed(struct tcpcb *);
335 int tcp_fconnect(struct socket *);
336 void tcp_connect(struct socket *);
337 int tcp_attach(struct socket *);
338 uint8_t tcp_tos(struct socket *);
339 int tcp_emu(struct socket *, struct mbuf *);
340 int tcp_ctl(struct socket *);
341 struct tcpcb *tcp_drop(struct tcpcb *tp, int err);
342
343 #ifdef USE_PPP
344 #define MIN_MRU MINMRU
345 #define MAX_MRU MAXMRU
346 #else
347 #define MIN_MRU 128
348 #define MAX_MRU 16384
349 #endif
350
351 #ifndef _WIN32
352 #define min(x,y) ((x) < (y) ? (x) : (y))
353 #define max(x,y) ((x) > (y) ? (x) : (y))
354 #endif
355
356 #ifdef _WIN32
357 #undef errno
358 #define errno (WSAGetLastError())
359 #endif
360
361 #endif