| /* | |
| * INET An implementation of the TCP/IP protocol suite for the LINUX | |
| * operating system. INET is implemented using the BSD Socket | |
| * interface as the means of communication with the user level. | |
| * | |
| * Definitions for the UDP module. | |
| * | |
| * Version: @(#)udp.h 1.0.2 05/07/93 | |
| * | |
| * Authors: Ross Biro | |
| * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> | |
| * | |
| * Fixes: | |
| * Alan Cox : Turned on udp checksums. I don't want to | |
| * chase 'memory corruption' bugs that aren't! | |
| * | |
| * 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 of the License, or (at your option) any later version. | |
| */ | |
| #ifndef _UDP_H | |
| #define _UDP_H | |
| #include <linux/list.h> | |
| #include <net/inet_sock.h> | |
| #include <net/sock.h> | |
| #include <net/snmp.h> | |
| #include <linux/seq_file.h> | |
| #define UDP_HTABLE_SIZE 128 | |
| extern struct hlist_head udp_hash[UDP_HTABLE_SIZE]; | |
| extern rwlock_t udp_hash_lock; | |
| /* Note: this must match 'valbool' in sock_setsockopt */ | |
| #define UDP_CSUM_NOXMIT 1 | |
| /* Used by SunRPC/xprt layer. */ | |
| #define UDP_CSUM_NORCV 2 | |
| /* Default, as per the RFC, is to always do csums. */ | |
| #define UDP_CSUM_DEFAULT 0 | |
| extern struct proto udp_prot; | |
| struct sk_buff; | |
| extern int udp_get_port(struct sock *sk, unsigned short snum, | |
| int (*saddr_cmp)(const struct sock *, const struct sock *)); | |
| extern void udp_err(struct sk_buff *, u32); | |
| extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk, | |
| struct msghdr *msg, size_t len); | |
| extern int udp_rcv(struct sk_buff *skb); | |
| extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg); | |
| extern int udp_disconnect(struct sock *sk, int flags); | |
| extern unsigned int udp_poll(struct file *file, struct socket *sock, | |
| poll_table *wait); | |
| DECLARE_SNMP_STAT(struct udp_mib, udp_statistics); | |
| #define UDP_INC_STATS(field) SNMP_INC_STATS(udp_statistics, field) | |
| #define UDP_INC_STATS_BH(field) SNMP_INC_STATS_BH(udp_statistics, field) | |
| #define UDP_INC_STATS_USER(field) SNMP_INC_STATS_USER(udp_statistics, field) | |
| /* /proc */ | |
| struct udp_seq_afinfo { | |
| struct module *owner; | |
| char *name; | |
| sa_family_t family; | |
| int (*seq_show) (struct seq_file *m, void *v); | |
| struct file_operations *seq_fops; | |
| }; | |
| struct udp_iter_state { | |
| sa_family_t family; | |
| int bucket; | |
| struct seq_operations seq_ops; | |
| }; | |
| #ifdef CONFIG_PROC_FS | |
| extern int udp_proc_register(struct udp_seq_afinfo *afinfo); | |
| extern void udp_proc_unregister(struct udp_seq_afinfo *afinfo); | |
| extern int udp4_proc_init(void); | |
| extern void udp4_proc_exit(void); | |
| #endif | |
| #endif /* _UDP_H */ |