| /* sock.h */ |
| /* |
| Copyright (C) 1992 Ross Biro |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| |
| The Author may be reached as bir7@leland.stanford.edu or |
| C/O Department of Mathematics; Stanford University; Stanford, CA 94305 |
| */ |
| /* $Id: sock.h,v 0.8.4.7 1993/01/26 22:04:00 bir7 Exp $ */ |
| /* $Log: sock.h,v $ |
| * Revision 0.8.4.7 1993/01/26 22:04:00 bir7 |
| * Added support for proc fs. |
| * |
| * Revision 0.8.4.6 1993/01/23 18:00:11 bir7 |
| * Added volatile keyword |
| * |
| * Revision 0.8.4.5 1992/12/12 01:50:49 bir7 |
| * Fixed support for half duplex connections. |
| * |
| * Revision 0.8.4.4 1992/12/06 23:29:59 bir7 |
| * Added mss and support for half completed packets. |
| * |
| * Revision 0.8.4.3 1992/12/03 19:54:12 bir7 |
| * Added paranoid queue checking. |
| * |
| * Revision 0.8.4.2 1992/11/10 10:38:48 bir7 |
| * Change free_s to kfree_s and accidently changed free_skb to kfree_skb. |
| * |
| * Revision 0.8.4.1 1992/11/10 00:17:18 bir7 |
| * version change only. |
| * |
| * Revision 0.8.3.4 1992/11/10 00:14:47 bir7 |
| * Changed malloc to kmalloc and added Id and Log |
| * |
| */ |
| #ifndef _TCP_SOCK_H |
| #define _TCP_SOCK_H |
| |
| #define SOCK_ARRAY_SIZE 64 |
| |
| /* This structure really needs to be cleaned up. Most of it is |
| for tcp, and not used by any of the other protocols. */ |
| |
| struct sock |
| { |
| struct options *opt; |
| volatile unsigned long wmem_alloc; |
| volatile unsigned long rmem_alloc; |
| unsigned long send_seq; |
| unsigned long acked_seq; |
| unsigned long copied_seq; |
| unsigned long rcv_ack_seq; |
| unsigned long window_seq; |
| unsigned long fin_seq; |
| /* not all are volatile, but some are, so we might as |
| well say they all are. */ |
| volatile unsigned long inuse:1, dead:1, urginline:1, |
| intr:1, blog:1, done:1, reuse:1, keepopen:1, linger:1, |
| delay_acks:1, timeout:3, destroy:1, ack_timed:1, no_check:1, |
| exp_growth:1; |
| int proc; |
| volatile struct sock *next; |
| volatile struct sock *pair; |
| struct sk_buff *send_tail; |
| struct sk_buff *send_head; |
| volatile struct sk_buff * volatile back_log; |
| struct sk_buff *send_tmp; |
| long retransmits; |
| struct sk_buff *wback, *wfront, *rqueue; |
| struct proto *prot; |
| struct wait_queue **sleep; |
| unsigned long daddr; |
| unsigned long saddr; |
| unsigned short max_unacked; |
| unsigned short window; |
| unsigned short bytes_rcv; |
| unsigned short mtu; |
| unsigned short num; |
| volatile unsigned short cong_window; |
| volatile unsigned short packets_out; |
| volatile unsigned short urg; |
| volatile unsigned short shutdown; |
| unsigned short mss; |
| volatile short rtt; |
| volatile short err; |
| unsigned char protocol; |
| volatile unsigned char state; |
| volatile unsigned char ack_backlog; |
| unsigned char max_ack_backlog; |
| unsigned char priority; |
| struct tcp_header dummy_th; /* I may be able to get rid of this. */ |
| volatile struct timer time_wait; |
| }; |
| |
| struct proto |
| { |
| void *(*wmalloc)(volatile struct sock *sk, unsigned long size, int force, |
| int priority); |
| void *(*rmalloc)(volatile struct sock *sk, unsigned long size, int force, |
| int priority); |
| void (*wfree)(volatile struct sock *sk, void *mem, unsigned long size); |
| void (*rfree)(volatile struct sock *sk, void *mem, unsigned long size); |
| unsigned long (*rspace)(volatile struct sock *sk); |
| unsigned long (*wspace)(volatile struct sock *sk); |
| void (*close)(volatile struct sock *sk, int timeout); |
| int (*read)(volatile struct sock *sk, unsigned char *to, int len, |
| int nonblock, unsigned flags); |
| int (*write)(volatile struct sock *sk, unsigned char *to, int len, |
| int nonblock, unsigned flags); |
| int (*sendto) (volatile struct sock *sk, unsigned char *from, int len, |
| int noblock, unsigned flags, struct sockaddr_in *usin, |
| int addr_len); |
| int (*recvfrom) (volatile struct sock *sk, unsigned char *from, int len, |
| int noblock, unsigned flags, struct sockaddr_in *usin, |
| int *addr_len); |
| int (*build_header) (struct sk_buff *skb, unsigned long saddr, |
| unsigned long daddr, struct device **dev, int type, |
| struct options *opt, int len); |
| int (*connect) (volatile struct sock *sk, struct sockaddr_in *usin, |
| int addr_len); |
| volatile struct sock *(*accept) (volatile struct sock *sk, int flags); |
| void (*queue_xmit) (volatile struct sock *sk, struct device *dev, |
| struct sk_buff *skb, int free); |
| void (*retransmit) (volatile struct sock *sk, int all); |
| void (*write_wakeup) (volatile struct sock *sk); |
| void (*read_wakeup) (volatile struct sock *sk); |
| int (*rcv)(struct sk_buff *buff, struct device *dev, struct options *opt, |
| unsigned long daddr, unsigned short len, |
| unsigned long saddr, int redo, struct ip_protocol *protocol); |
| int (*select)(volatile struct sock *sk, int which, select_table *wait); |
| int (*ioctl) (volatile struct sock *sk, int cmd, unsigned long arg); |
| int (*init) (volatile struct sock *sk); |
| void (*shutdown) (volatile struct sock *sk, int how); |
| unsigned short max_header; |
| unsigned long retransmits; |
| volatile struct sock *sock_array[SOCK_ARRAY_SIZE]; |
| char name[80]; |
| }; |
| |
| #define TIME_WRITE 1 |
| #define TIME_CLOSE 2 |
| #define TIME_KEEPOPEN 3 |
| #define TIME_DESTROY 4 |
| #define TIME_DONE 5 /* used to absorb those last few packets. */ |
| #define SOCK_DESTROY_TIME 1000 /* about 10 seconds. */ |
| |
| /* used with free skb */ |
| #define FREE_READ 1 |
| #define FREE_WRITE 0 |
| |
| struct sk_buff |
| { |
| volatile struct sk_buff *next; |
| volatile struct sk_buff *prev; |
| volatile struct sk_buff *link3; |
| volatile struct sock *sk; |
| volatile unsigned long when; /* used to compute rtt's. */ |
| struct device *dev; |
| void *mem_addr; |
| union |
| { |
| struct tcp_header *th; |
| struct enet_header *eth; |
| struct ip_header *iph; |
| struct udp_header *uh; |
| struct arp *arp; |
| unsigned char *raw; |
| unsigned long seq; |
| } h; |
| unsigned long mem_len; |
| unsigned long len; |
| unsigned long saddr; |
| unsigned long daddr; |
| int magic; |
| volatile unsigned long acked:1,used:1,free:1,arp:1, urg_used:1, lock:1; |
| }; |
| |
| #define PROT_SOCK 1024 |
| #define SK_WMEM_MAX 8192 |
| #define SK_RMEM_MAX 32767 |
| #define SHUTDOWN_MASK 3 |
| #define RCV_SHUTDOWN 1 |
| #define SEND_SHUTDOWN 2 |
| |
| void destroy_sock (volatile struct sock *sk); |
| unsigned short get_new_socknum (struct proto *, unsigned short); |
| void put_sock (unsigned short, volatile struct sock *); |
| void release_sock (volatile struct sock *sk); |
| volatile struct sock *get_sock(struct proto *, unsigned short, unsigned long, |
| unsigned short, unsigned long); |
| void print_sk (volatile struct sock *); |
| void print_skb (struct sk_buff *); |
| void *sock_wmalloc(volatile struct sock *sk, unsigned long size, int force, |
| int priority); |
| void *sock_rmalloc(volatile struct sock *sk, unsigned long size, int force, |
| int priority); |
| void sock_wfree(volatile struct sock *sk, void *mem, unsigned long size); |
| void sock_rfree(volatile struct sock *sk, void *mem, unsigned long size); |
| unsigned long sock_rspace(volatile struct sock *sk); |
| unsigned long sock_wspace(volatile struct sock *sk); |
| void kfree_skb (struct sk_buff *skb, int rw); |
| void lock_skb (struct sk_buff *skb); |
| void unlock_skb (struct sk_buff *skb, int rw); |
| |
| void dummy_routine(void *, ... ); |
| |
| #endif |