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30 #ifndef _SOCK_H
31 #define _SOCK_H
32
33 #include <linux/timer.h>
34 #include <linux/ip.h>
35 #include <linux/tcp.h>
36
37 #include "skbuff.h"
38 #include "protocol.h"
39 #ifdef CONFIG_AX25
40 #include "ax25.h"
41 #endif
42 #ifdef CONFIG_IPX
43 #include "ipx.h"
44 #endif
45
46 #define SOCK_ARRAY_SIZE 64
47
48
49
50
51
52
53
54 struct sock {
55 struct options *opt;
56 volatile unsigned long wmem_alloc;
57 volatile unsigned long rmem_alloc;
58 unsigned long send_seq;
59 unsigned long acked_seq;
60 unsigned long copied_seq;
61 unsigned long rcv_ack_seq;
62 unsigned long window_seq;
63 unsigned long fin_seq;
64 unsigned long urg_seq;
65 unsigned long urg_data;
66
67
68
69
70
71 volatile char inuse,
72 dead,
73 urginline,
74 intr,
75 blog,
76 done,
77 reuse,
78 keepopen,
79 linger,
80 delay_acks,
81 destroy,
82 ack_timed,
83 no_check,
84 zapped,
85 broadcast,
86 nonagle;
87 unsigned long lingertime;
88 int proc;
89 struct sock *next;
90 struct sock *pair;
91 struct sk_buff *volatile send_tail;
92 struct sk_buff *volatile send_head;
93 struct sk_buff *volatile back_log;
94 struct sk_buff *partial;
95 struct timer_list partial_timer;
96 long retransmits;
97 struct sk_buff *volatile wback,
98 *volatile wfront,
99 *volatile rqueue;
100 struct proto *prot;
101 struct wait_queue **sleep;
102 unsigned long daddr;
103 unsigned long saddr;
104 unsigned short max_unacked;
105 unsigned short window;
106 unsigned short bytes_rcv;
107
108 unsigned short mtu;
109 volatile unsigned short mss;
110 volatile unsigned short user_mss;
111 volatile unsigned short max_window;
112 unsigned short num;
113 volatile unsigned short cong_window;
114 volatile unsigned short cong_count;
115 volatile unsigned short ssthresh;
116 volatile unsigned short packets_out;
117 volatile unsigned short shutdown;
118 volatile unsigned long rtt;
119 volatile unsigned long mdev;
120 volatile unsigned long rto;
121
122
123
124 volatile unsigned short backoff;
125 volatile short err;
126 unsigned char protocol;
127 volatile unsigned char state;
128 volatile unsigned char ack_backlog;
129 unsigned char max_ack_backlog;
130 unsigned char priority;
131 unsigned char debug;
132 unsigned short rcvbuf;
133 unsigned short sndbuf;
134 unsigned short type;
135 #ifdef CONFIG_IPX
136 ipx_address ipx_source_addr,ipx_dest_addr;
137 unsigned short ipx_type;
138 #endif
139 #ifdef CONFIG_AX25
140
141 ax25_address ax25_source_addr,ax25_dest_addr;
142 struct sk_buff *volatile ax25_retxq[8];
143 char ax25_state,ax25_vs,ax25_vr,ax25_lastrxnr,ax25_lasttxnr;
144 char ax25_condition;
145 char ax25_retxcnt;
146 char ax25_xx;
147 char ax25_retxqi;
148 char ax25_rrtimer;
149 char ax25_timer;
150 ax25_digi *ax25_digipeat;
151 #endif
152
153 int ip_ttl;
154 int ip_tos;
155 struct tcphdr dummy_th;
156
157
158 int timeout;
159 struct timer_list timer;
160
161
162 struct socket *socket;
163
164
165 void (*state_change)(struct sock *sk);
166 void (*data_ready)(struct sock *sk,int bytes);
167 void (*write_space)(struct sock *sk);
168 void (*error_report)(struct sock *sk);
169
170 };
171
172 struct proto {
173 struct sk_buff * (*wmalloc)(struct sock *sk,
174 unsigned long size, int force,
175 int priority);
176 struct sk_buff * (*rmalloc)(struct sock *sk,
177 unsigned long size, int force,
178 int priority);
179 void (*wfree)(struct sock *sk, void *mem,
180 unsigned long size);
181 void (*rfree)(struct sock *sk, void *mem,
182 unsigned long size);
183 unsigned long (*rspace)(struct sock *sk);
184 unsigned long (*wspace)(struct sock *sk);
185 void (*close)(struct sock *sk, int timeout);
186 int (*read)(struct sock *sk, unsigned char *to,
187 int len, int nonblock, unsigned flags);
188 int (*write)(struct sock *sk, unsigned char *to,
189 int len, int nonblock, unsigned flags);
190 int (*sendto)(struct sock *sk,
191 unsigned char *from, int len, int noblock,
192 unsigned flags, struct sockaddr_in *usin,
193 int addr_len);
194 int (*recvfrom)(struct sock *sk,
195 unsigned char *from, int len, int noblock,
196 unsigned flags, struct sockaddr_in *usin,
197 int *addr_len);
198 int (*build_header)(struct sk_buff *skb,
199 unsigned long saddr,
200 unsigned long daddr,
201 struct device **dev, int type,
202 struct options *opt, int len, int tos, int ttl);
203 int (*connect)(struct sock *sk,
204 struct sockaddr_in *usin, int addr_len);
205 struct sock * (*accept) (struct sock *sk, int flags);
206 void (*queue_xmit)(struct sock *sk,
207 struct device *dev, struct sk_buff *skb,
208 int free);
209 void (*retransmit)(struct sock *sk, int all);
210 void (*write_wakeup)(struct sock *sk);
211 void (*read_wakeup)(struct sock *sk);
212 int (*rcv)(struct sk_buff *buff, struct device *dev,
213 struct options *opt, unsigned long daddr,
214 unsigned short len, unsigned long saddr,
215 int redo, struct inet_protocol *protocol);
216 int (*select)(struct sock *sk, int which,
217 select_table *wait);
218 int (*ioctl)(struct sock *sk, int cmd,
219 unsigned long arg);
220 int (*init)(struct sock *sk);
221 void (*shutdown)(struct sock *sk, int how);
222 int (*setsockopt)(struct sock *sk, int level, int optname,
223 char *optval, int optlen);
224 int (*getsockopt)(struct sock *sk, int level, int optname,
225 char *optval, int *option);
226 unsigned short max_header;
227 unsigned long retransmits;
228 struct sock * sock_array[SOCK_ARRAY_SIZE];
229 char name[80];
230 };
231
232 #define TIME_WRITE 1
233 #define TIME_CLOSE 2
234 #define TIME_KEEPOPEN 3
235 #define TIME_DESTROY 4
236 #define TIME_DONE 5
237 #define TIME_PROBE0 6
238 #define SOCK_DESTROY_TIME 1000
239
240 #define PROT_SOCK 1024
241
242 #define SHUTDOWN_MASK 3
243 #define RCV_SHUTDOWN 1
244 #define SEND_SHUTDOWN 2
245
246
247 extern void destroy_sock(struct sock *sk);
248 extern unsigned short get_new_socknum(struct proto *, unsigned short);
249 extern void put_sock(unsigned short, struct sock *);
250 extern void release_sock(struct sock *sk);
251 extern struct sock *get_sock(struct proto *, unsigned short,
252 unsigned long, unsigned short,
253 unsigned long);
254 extern void print_sk(struct sock *);
255 extern struct sk_buff *sock_wmalloc(struct sock *sk,
256 unsigned long size, int force,
257 int priority);
258 extern struct sk_buff *sock_rmalloc(struct sock *sk,
259 unsigned long size, int force,
260 int priority);
261 extern void sock_wfree(struct sock *sk, void *mem,
262 unsigned long size);
263 extern void sock_rfree(struct sock *sk, void *mem,
264 unsigned long size);
265 extern unsigned long sock_rspace(struct sock *sk);
266 extern unsigned long sock_wspace(struct sock *sk);
267
268 extern int sock_setsockopt(struct sock *sk,int level,int op,char *optval,int optlen);
269 extern int sock_getsockopt(struct sock *sk,int level,int op,char *optval,int *optlen);
270
271
272 extern struct sock *timer_base;
273
274 void delete_timer (struct sock *);
275 void reset_timer (struct sock *, int, unsigned long);
276 void net_timer (unsigned long);
277
278
279 #endif