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git.proxmox.com Git - mirror_frr.git/blob - ripngd/ripng_offset.c
2 * Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
4 * This file is part of GNU Zebra.
6 * GNU Zebra is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2, or (at your option) any
11 * GNU Zebra is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with this program; see the file COPYING; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 /* RIPng support by Vincent Jardin <vincent.jardin@6wind.com>
22 * Copyright (C) 2002 6WIND
34 #include "ripngd/ripngd.h"
36 static struct list
*ripng_offset_list_master
;
38 #define OFFSET_LIST_IN_NAME(O) ((O)->direct[RIPNG_OFFSET_LIST_IN].alist_name)
39 #define OFFSET_LIST_IN_METRIC(O) ((O)->direct[RIPNG_OFFSET_LIST_IN].metric)
41 #define OFFSET_LIST_OUT_NAME(O) ((O)->direct[RIPNG_OFFSET_LIST_OUT].alist_name)
42 #define OFFSET_LIST_OUT_METRIC(O) ((O)->direct[RIPNG_OFFSET_LIST_OUT].metric)
44 struct ripng_offset_list
*ripng_offset_list_new(const char *ifname
)
46 struct ripng_offset_list
*new;
48 new = XCALLOC(MTYPE_RIPNG_OFFSET_LIST
,
49 sizeof(struct ripng_offset_list
));
50 new->ifname
= strdup(ifname
);
51 listnode_add_sort(ripng_offset_list_master
, new);
56 void ripng_offset_list_del(struct ripng_offset_list
*offset
)
58 listnode_delete(ripng_offset_list_master
, offset
);
59 if (OFFSET_LIST_IN_NAME(offset
))
60 free(OFFSET_LIST_IN_NAME(offset
));
61 if (OFFSET_LIST_OUT_NAME(offset
))
62 free(OFFSET_LIST_OUT_NAME(offset
));
64 XFREE(MTYPE_RIPNG_OFFSET_LIST
, offset
);
67 struct ripng_offset_list
*ripng_offset_list_lookup(const char *ifname
)
69 struct ripng_offset_list
*offset
;
70 struct listnode
*node
, *nnode
;
72 for (ALL_LIST_ELEMENTS(ripng_offset_list_master
, node
, nnode
, offset
)) {
73 if (strcmp(offset
->ifname
, ifname
) == 0)
79 /* If metric is modifed return 1. */
80 int ripng_offset_list_apply_in(struct prefix_ipv6
*p
, struct interface
*ifp
,
83 struct ripng_offset_list
*offset
;
84 struct access_list
*alist
;
86 /* Look up offset-list with interface name. */
87 offset
= ripng_offset_list_lookup(ifp
->name
);
88 if (offset
&& OFFSET_LIST_IN_NAME(offset
)) {
89 alist
= access_list_lookup(AFI_IP6
,
90 OFFSET_LIST_IN_NAME(offset
));
93 && access_list_apply(alist
, (struct prefix
*)p
)
95 *metric
+= OFFSET_LIST_IN_METRIC(offset
);
100 /* Look up offset-list without interface name. */
101 offset
= ripng_offset_list_lookup("*");
102 if (offset
&& OFFSET_LIST_IN_NAME(offset
)) {
103 alist
= access_list_lookup(AFI_IP6
,
104 OFFSET_LIST_IN_NAME(offset
));
107 && access_list_apply(alist
, (struct prefix
*)p
)
109 *metric
+= OFFSET_LIST_IN_METRIC(offset
);
117 /* If metric is modifed return 1. */
118 int ripng_offset_list_apply_out(struct prefix_ipv6
*p
, struct interface
*ifp
,
121 struct ripng_offset_list
*offset
;
122 struct access_list
*alist
;
124 /* Look up offset-list with interface name. */
125 offset
= ripng_offset_list_lookup(ifp
->name
);
126 if (offset
&& OFFSET_LIST_OUT_NAME(offset
)) {
127 alist
= access_list_lookup(AFI_IP6
,
128 OFFSET_LIST_OUT_NAME(offset
));
131 && access_list_apply(alist
, (struct prefix
*)p
)
133 *metric
+= OFFSET_LIST_OUT_METRIC(offset
);
139 /* Look up offset-list without interface name. */
140 offset
= ripng_offset_list_lookup("*");
141 if (offset
&& OFFSET_LIST_OUT_NAME(offset
)) {
142 alist
= access_list_lookup(AFI_IP6
,
143 OFFSET_LIST_OUT_NAME(offset
));
146 && access_list_apply(alist
, (struct prefix
*)p
)
148 *metric
+= OFFSET_LIST_OUT_METRIC(offset
);
156 static int offset_list_cmp(struct ripng_offset_list
*o1
,
157 struct ripng_offset_list
*o2
)
159 return strcmp(o1
->ifname
, o2
->ifname
);
162 void ripng_offset_init(void)
164 ripng_offset_list_master
= list_new();
165 ripng_offset_list_master
->cmp
=
166 (int (*)(void *, void *))offset_list_cmp
;
167 ripng_offset_list_master
->del
= (void (*)(void *))ripng_offset_list_del
;
170 void ripng_offset_clean(void)
172 list_delete(&ripng_offset_list_master
);
174 ripng_offset_list_master
= list_new();
175 ripng_offset_list_master
->cmp
=
176 (int (*)(void *, void *))offset_list_cmp
;
177 ripng_offset_list_master
->del
= (void (*)(void *))ripng_offset_list_del
;