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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 <linux/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 write_seq;
59 unsigned long sent_seq;
60 unsigned long acked_seq;
61 unsigned long copied_seq;
62 unsigned long rcv_ack_seq;
63 unsigned long window_seq;
64 unsigned long fin_seq;
65 unsigned long urg_seq;
66 unsigned long urg_data;
67
68
69
70
71
72 volatile char inuse,
73 dead,
74 urginline,
75 intr,
76 blog,
77 done,
78 reuse,
79 keepopen,
80 linger,
81 delay_acks,
82 destroy,
83 ack_timed,
84 no_check,
85 zapped,
86 broadcast,
87 nonagle;
88 unsigned long lingertime;
89 int proc;
90 struct sock *next;
91 struct sock *pair;
92 struct sk_buff * volatile send_head;
93 struct sk_buff * volatile send_tail;
94 struct sk_buff_head back_log;
95 struct sk_buff *partial;
96 struct timer_list partial_timer;
97 long retransmits;
98 struct sk_buff_head write_queue,
99 receive_queue;
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 unsigned char localroute;
136 #ifdef CONFIG_IPX
137 ipx_address ipx_source_addr,ipx_dest_addr;
138 unsigned short ipx_type;
139 #endif
140 #ifdef CONFIG_AX25
141
142 ax25_address ax25_source_addr,ax25_dest_addr;
143 struct sk_buff *volatile ax25_retxq[8];
144 char ax25_state,ax25_vs,ax25_vr,ax25_lastrxnr,ax25_lasttxnr;
145 char ax25_condition;
146 char ax25_retxcnt;
147 char ax25_xx;
148 char ax25_retxqi;
149 char ax25_rrtimer;
150 char ax25_timer;
151 unsigned char ax25_n2;
152 unsigned short ax25_t1,ax25_t3;
153 ax25_digi *ax25_digipeat;
154 #endif
155
156 int ip_ttl;
157 int ip_tos;
158 struct tcphdr dummy_th;
159
160
161 int timeout;
162 struct timer_list timer;
163 struct timeval stamp;
164
165
166 struct socket *socket;
167
168
169 void (*state_change)(struct sock *sk);
170 void (*data_ready)(struct sock *sk,int bytes);
171 void (*write_space)(struct sock *sk);
172 void (*error_report)(struct sock *sk);
173
174 };
175
176 struct proto {
177 struct sk_buff * (*wmalloc)(struct sock *sk,
178 unsigned long size, int force,
179 int priority);
180 struct sk_buff * (*rmalloc)(struct sock *sk,
181 unsigned long size, int force,
182 int priority);
183 void (*wfree)(struct sock *sk, void *mem,
184 unsigned long size);
185 void (*rfree)(struct sock *sk, void *mem,
186 unsigned long size);
187 unsigned long (*rspace)(struct sock *sk);
188 unsigned long (*wspace)(struct sock *sk);
189 void (*close)(struct sock *sk, int timeout);
190 int (*read)(struct sock *sk, unsigned char *to,
191 int len, int nonblock, unsigned flags);
192 int (*write)(struct sock *sk, unsigned char *to,
193 int len, int nonblock, unsigned flags);
194 int (*sendto)(struct sock *sk,
195 unsigned char *from, int len, int noblock,
196 unsigned flags, struct sockaddr_in *usin,
197 int addr_len);
198 int (*recvfrom)(struct sock *sk,
199 unsigned char *from, int len, int noblock,
200 unsigned flags, struct sockaddr_in *usin,
201 int *addr_len);
202 int (*build_header)(struct sk_buff *skb,
203 unsigned long saddr,
204 unsigned long daddr,
205 struct device **dev, int type,
206 struct options *opt, int len, int tos, int ttl);
207 int (*connect)(struct sock *sk,
208 struct sockaddr_in *usin, int addr_len);
209 struct sock * (*accept) (struct sock *sk, int flags);
210 void (*queue_xmit)(struct sock *sk,
211 struct device *dev, struct sk_buff *skb,
212 int free);
213 void (*retransmit)(struct sock *sk, int all);
214 void (*write_wakeup)(struct sock *sk);
215 void (*read_wakeup)(struct sock *sk);
216 int (*rcv)(struct sk_buff *buff, struct device *dev,
217 struct options *opt, unsigned long daddr,
218 unsigned short len, unsigned long saddr,
219 int redo, struct inet_protocol *protocol);
220 int (*select)(struct sock *sk, int which,
221 select_table *wait);
222 int (*ioctl)(struct sock *sk, int cmd,
223 unsigned long arg);
224 int (*init)(struct sock *sk);
225 void (*shutdown)(struct sock *sk, int how);
226 int (*setsockopt)(struct sock *sk, int level, int optname,
227 char *optval, int optlen);
228 int (*getsockopt)(struct sock *sk, int level, int optname,
229 char *optval, int *option);
230 unsigned short max_header;
231 unsigned long retransmits;
232 struct sock * sock_array[SOCK_ARRAY_SIZE];
233 char name[80];
234 };
235
236 #define TIME_WRITE 1
237 #define TIME_CLOSE 2
238 #define TIME_KEEPOPEN 3
239 #define TIME_DESTROY 4
240 #define TIME_DONE 5
241 #define TIME_PROBE0 6
242 #define SOCK_DESTROY_TIME 1000
243
244 #define PROT_SOCK 1024
245
246 #define SHUTDOWN_MASK 3
247 #define RCV_SHUTDOWN 1
248 #define SEND_SHUTDOWN 2
249
250
251 extern void destroy_sock(struct sock *sk);
252 extern unsigned short get_new_socknum(struct proto *, unsigned short);
253 extern void put_sock(unsigned short, struct sock *);
254 extern void release_sock(struct sock *sk);
255 extern struct sock *get_sock(struct proto *, unsigned short,
256 unsigned long, unsigned short,
257 unsigned long);
258 extern void print_sk(struct sock *);
259 extern struct sk_buff *sock_wmalloc(struct sock *sk,
260 unsigned long size, int force,
261 int priority);
262 extern struct sk_buff *sock_rmalloc(struct sock *sk,
263 unsigned long size, int force,
264 int priority);
265 extern void sock_wfree(struct sock *sk, void *mem,
266 unsigned long size);
267 extern void sock_rfree(struct sock *sk, void *mem,
268 unsigned long size);
269 extern unsigned long sock_rspace(struct sock *sk);
270 extern unsigned long sock_wspace(struct sock *sk);
271
272 extern int sock_setsockopt(struct sock *sk,int level,int op,char *optval,int optlen);
273 extern int sock_getsockopt(struct sock *sk,int level,int op,char *optval,int *optlen);
274
275
276 extern struct sock *timer_base;
277
278 void delete_timer (struct sock *);
279 void reset_timer (struct sock *, int, unsigned long);
280 void net_timer (unsigned long);
281
282
283 #endif