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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/ipv6/protocol.c
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!
Diffstat (limited to 'net/ipv6/protocol.c')
-rw-r--r--net/ipv6/protocol.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c
new file mode 100644
index 000000000000..52c1d58b6ca6
--- /dev/null
+++ b/net/ipv6/protocol.c
@@ -0,0 +1,86 @@
+/*
+ * 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.
+ *
+ * PF_INET6 protocol dispatch tables.
+ *
+ * Version: $Id: protocol.c,v 1.10 2001/05/18 02:25:49 davem Exp $
+ *
+ * Authors: Pedro Roque <roque@di.fc.ul.pt>
+ *
+ * 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.
+ */
+
+/*
+ * Changes:
+ *
+ * Vince Laviano (vince@cs.stanford.edu) 16 May 2001
+ * - Removed unused variable 'inet6_protocol_base'
+ * - Modified inet6_del_protocol() to correctly maintain copy bit.
+ */
+
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <linux/sched.h>
+#include <linux/net.h>
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/sock.h>
+#include <net/snmp.h>
+
+#include <net/ipv6.h>
+#include <net/protocol.h>
+
+struct inet6_protocol *inet6_protos[MAX_INET_PROTOS];
+static DEFINE_SPINLOCK(inet6_proto_lock);
+
+
+int inet6_add_protocol(struct inet6_protocol *prot, unsigned char protocol)
+{
+ int ret, hash = protocol & (MAX_INET_PROTOS - 1);
+
+ spin_lock_bh(&inet6_proto_lock);
+
+ if (inet6_protos[hash]) {
+ ret = -1;
+ } else {
+ inet6_protos[hash] = prot;
+ ret = 0;
+ }
+
+ spin_unlock_bh(&inet6_proto_lock);
+
+ return ret;
+}
+
+/*
+ * Remove a protocol from the hash tables.
+ */
+
+int inet6_del_protocol(struct inet6_protocol *prot, unsigned char protocol)
+{
+ int ret, hash = protocol & (MAX_INET_PROTOS - 1);
+
+ spin_lock_bh(&inet6_proto_lock);
+
+ if (inet6_protos[hash] != prot) {
+ ret = -1;
+ } else {
+ inet6_protos[hash] = NULL;
+ ret = 0;
+ }
+
+ spin_unlock_bh(&inet6_proto_lock);
+
+ synchronize_net();
+
+ return ret;
+}