Merge from vendor branch Linux:

Import of Linux 2.2.12 subset (ipv4 stack and related)

1 files changed, 66 insertions, 0 deletions

diff --git a/pfinet/linux-src/include/net/udp.h b/pfinet/linux-src/include/net/udp.h
new file mode 100644
index 00000000..f3ceadb5
--- /dev/null
+++ b/pfinet/linux-src/include/net/udp.h
@@ -0,0 +1,66 @@
+/*
+ * 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 <net/sock.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 sock *udp_hash[UDP_HTABLE_SIZE];
+
+#define UDP_NO_CHECK	0
+
+extern int udp_port_rover;
+
+static inline int udp_lport_inuse(u16 num)
+{
+	struct sock *sk = udp_hash[num & (UDP_HTABLE_SIZE - 1)];
+
+	for(; sk != NULL; sk = sk->next) {
+		if(sk->num == num)
+			return 1;
+	}
+	return 0;
+}
+
+extern struct proto udp_prot;
+
+
+extern void	udp_err(struct sk_buff *, unsigned char *, int);
+extern int	udp_connect(struct sock *sk,
+			    struct sockaddr *usin, int addr_len);
+
+extern int	udp_sendmsg(struct sock *sk, struct msghdr *msg, int len);
+
+extern int	udp_rcv(struct sk_buff *skb, unsigned short len);
+extern int	udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
+
+/* CONFIG_IP_TRANSPARENT_PROXY */
+extern int	udp_chkaddr(struct sk_buff *skb);
+
+#endif	/* _UDP_H */