diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /net/ipv6/protocol.c |
Linux-2.6.12-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.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c new file mode 100644 index 00000000000..52c1d58b6ca --- /dev/null +++ b/net/ipv6/protocol.c | |||
@@ -0,0 +1,86 @@ | |||
1 | /* | ||
2 | * INET An implementation of the TCP/IP protocol suite for the LINUX | ||
3 | * operating system. INET is implemented using the BSD Socket | ||
4 | * interface as the means of communication with the user level. | ||
5 | * | ||
6 | * PF_INET6 protocol dispatch tables. | ||
7 | * | ||
8 | * Version: $Id: protocol.c,v 1.10 2001/05/18 02:25:49 davem Exp $ | ||
9 | * | ||
10 | * Authors: Pedro Roque <roque@di.fc.ul.pt> | ||
11 | * | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version | ||
15 | * 2 of the License, or (at your option) any later version. | ||
16 | */ | ||
17 | |||
18 | /* | ||
19 | * Changes: | ||
20 | * | ||
21 | * Vince Laviano (vince@cs.stanford.edu) 16 May 2001 | ||
22 | * - Removed unused variable 'inet6_protocol_base' | ||
23 | * - Modified inet6_del_protocol() to correctly maintain copy bit. | ||
24 | */ | ||
25 | |||
26 | #include <linux/errno.h> | ||
27 | #include <linux/types.h> | ||
28 | #include <linux/socket.h> | ||
29 | #include <linux/sockios.h> | ||
30 | #include <linux/sched.h> | ||
31 | #include <linux/net.h> | ||
32 | #include <linux/in6.h> | ||
33 | #include <linux/netdevice.h> | ||
34 | #include <linux/if_arp.h> | ||
35 | |||
36 | #include <net/sock.h> | ||
37 | #include <net/snmp.h> | ||
38 | |||
39 | #include <net/ipv6.h> | ||
40 | #include <net/protocol.h> | ||
41 | |||
42 | struct inet6_protocol *inet6_protos[MAX_INET_PROTOS]; | ||
43 | static DEFINE_SPINLOCK(inet6_proto_lock); | ||
44 | |||
45 | |||
46 | int inet6_add_protocol(struct inet6_protocol *prot, unsigned char protocol) | ||
47 | { | ||
48 | int ret, hash = protocol & (MAX_INET_PROTOS - 1); | ||
49 | |||
50 | spin_lock_bh(&inet6_proto_lock); | ||
51 | |||
52 | if (inet6_protos[hash]) { | ||
53 | ret = -1; | ||
54 | } else { | ||
55 | inet6_protos[hash] = prot; | ||
56 | ret = 0; | ||
57 | } | ||
58 | |||
59 | spin_unlock_bh(&inet6_proto_lock); | ||
60 | |||
61 | return ret; | ||
62 | } | ||
63 | |||
64 | /* | ||
65 | * Remove a protocol from the hash tables. | ||
66 | */ | ||
67 | |||
68 | int inet6_del_protocol(struct inet6_protocol *prot, unsigned char protocol) | ||
69 | { | ||
70 | int ret, hash = protocol & (MAX_INET_PROTOS - 1); | ||
71 | |||
72 | spin_lock_bh(&inet6_proto_lock); | ||
73 | |||
74 | if (inet6_protos[hash] != prot) { | ||
75 | ret = -1; | ||
76 | } else { | ||
77 | inet6_protos[hash] = NULL; | ||
78 | ret = 0; | ||
79 | } | ||
80 | |||
81 | spin_unlock_bh(&inet6_proto_lock); | ||
82 | |||
83 | synchronize_net(); | ||
84 | |||
85 | return ret; | ||
86 | } | ||