Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 99 insertions, 0 deletions

diff --git a/include/net/udp.h b/include/net/udp.h
new file mode 100644
index 00000000000..c496d10101d
--- /dev/null
+++ b/include/net/udp.h
@@ -0,0 +1,99 @@
+/*
+ * 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, <bir7@leland.Stanford.Edu>
+ *		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/udp.h>
+#include <linux/ip.h>
+#include <linux/list.h>
+#include <net/sock.h>
+#include <net/snmp.h>
+#include <linux/seq_file.h>
+
+#define UDP_HTABLE_SIZE		128
+
+/* udp.c: This needs to be shared by v4 and v6 because the lookup
+ *        and hashing code needs to work with different AF's yet
+ *        the port space is shared.
+ */
+extern struct hlist_head udp_hash[UDP_HTABLE_SIZE];
+extern rwlock_t udp_hash_lock;
+
+extern int udp_port_rover;
+
+static inline int udp_lport_inuse(u16 num)
+{
+	struct sock *sk;
+	struct hlist_node *node;
+
+	sk_for_each(sk, node, &udp_hash[num & (UDP_HTABLE_SIZE - 1)])
+		if (inet_sk(sk)->num == num)
+			return 1;
+	return 0;
+}
+
+/* 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;
+
+
+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;
+};
+
+extern int udp_proc_register(struct udp_seq_afinfo *afinfo);
+extern void udp_proc_unregister(struct udp_seq_afinfo *afinfo);
+#endif	/* _UDP_H */