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1 | /* |
2 | * NS related header. | |
3 | * Copyright (C) 2014 6WIND S.A. | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation; either version 2, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
32bcb8b0 DS |
20 | */ |
21 | ||
22 | #ifndef _ZEBRA_NS_H | |
23 | #define _ZEBRA_NS_H | |
24 | ||
c7fdd84f | 25 | #include "openbsd-tree.h" |
32bcb8b0 DS |
26 | #include "linklist.h" |
27 | ||
28 | typedef u_int16_t ns_id_t; | |
29 | ||
30 | /* The default NS ID */ | |
31 | #define NS_DEFAULT 0 | |
32 | ||
1fbe3e58 | 33 | /* Default netns directory (Linux) */ |
13460c44 | 34 | #define NS_RUN_DIR "/var/run/netns" |
32bcb8b0 | 35 | |
d62a17ae | 36 | struct ns { |
37 | RB_ENTRY(ns) entry; | |
c7fdd84f | 38 | |
d62a17ae | 39 | /* Identifier, same as the vector index */ |
40 | ns_id_t ns_id; | |
c7fdd84f | 41 | |
d62a17ae | 42 | /* Name */ |
43 | char *name; | |
c7fdd84f | 44 | |
d62a17ae | 45 | /* File descriptor */ |
46 | int fd; | |
f30c50b9 | 47 | |
d62a17ae | 48 | /* Master list of interfaces belonging to this NS */ |
49 | struct list *iflist; | |
f30c50b9 | 50 | |
d62a17ae | 51 | /* User data */ |
52 | void *info; | |
f30c50b9 | 53 | }; |
d62a17ae | 54 | RB_HEAD(ns_head, ns); |
55 | RB_PROTOTYPE(ns_head, ns, entry, ns_compare) | |
c7fdd84f RW |
56 | |
57 | extern struct ns_head ns_tree; | |
f30c50b9 | 58 | |
32bcb8b0 DS |
59 | /* |
60 | * NS hooks | |
61 | */ | |
62 | ||
63 | #define NS_NEW_HOOK 0 /* a new logical-router is just created */ | |
64 | #define NS_DELETE_HOOK 1 /* a logical-router is to be deleted */ | |
65 | #define NS_ENABLE_HOOK 2 /* a logical-router is ready to use */ | |
66 | #define NS_DISABLE_HOOK 3 /* a logical-router is to be unusable */ | |
67 | ||
68 | /* | |
69 | * Add a specific hook ns module. | |
70 | * @param1: hook type | |
71 | * @param2: the callback function | |
72 | * - param 1: the NS ID | |
73 | * - param 2: the address of the user data pointer (the user data | |
74 | * can be stored in or freed from there) | |
75 | */ | |
d62a17ae | 76 | extern void ns_add_hook(int, int (*)(ns_id_t, void **)); |
32bcb8b0 | 77 | |
32bcb8b0 DS |
78 | /* |
79 | * NS initializer/destructor | |
80 | */ | |
81 | /* Please add hooks before calling ns_init(). */ | |
d62a17ae | 82 | extern void ns_init(void); |
83 | extern void ns_terminate(void); | |
32bcb8b0 DS |
84 | |
85 | /* | |
86 | * NS utilities | |
87 | */ | |
88 | ||
89 | /* Create a socket serving for the given NS */ | |
d62a17ae | 90 | extern int ns_socket(int, int, int, ns_id_t); |
32bcb8b0 DS |
91 | |
92 | #endif /*_ZEBRA_NS_H*/ |