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
17 * along with GNU Zebra; see the file COPYING. If not, write to the Free
18 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
31 #include "ripd/ripd.h"
33 #define RIP_OFFSET_LIST_IN 0
34 #define RIP_OFFSET_LIST_OUT 1
35 #define RIP_OFFSET_LIST_MAX 2
37 struct rip_offset_list
44 /* struct access_list *alist; */
46 } direct[RIP_OFFSET_LIST_MAX];
49 static struct list *rip_offset_list_master;
52 strcmp_safe (const char *s1, const char *s2)
54 if (s1 == NULL && s2 == NULL)
60 return strcmp (s1, s2);
63 static struct rip_offset_list *
64 rip_offset_list_new (void)
66 return XCALLOC (MTYPE_RIP_OFFSET_LIST, sizeof (struct rip_offset_list));
70 rip_offset_list_free (struct rip_offset_list *offset)
72 XFREE (MTYPE_RIP_OFFSET_LIST, offset);
75 static struct rip_offset_list *
76 rip_offset_list_lookup (const char *ifname)
78 struct rip_offset_list *offset;
79 struct listnode *node, *nnode;
81 for (ALL_LIST_ELEMENTS (rip_offset_list_master, node, nnode, offset))
83 if (strcmp_safe (offset->ifname, ifname) == 0)
89 static struct rip_offset_list *
90 rip_offset_list_get (const char *ifname)
92 struct rip_offset_list *offset;
94 offset = rip_offset_list_lookup (ifname);
98 offset = rip_offset_list_new ();
100 offset->ifname = strdup (ifname);
101 listnode_add_sort (rip_offset_list_master, offset);
107 rip_offset_list_set (struct vty *vty, const char *alist, const char *direct_str,
108 const char *metric_str, const char *ifname)
112 struct rip_offset_list *offset;
114 /* Check direction. */
115 if (strncmp (direct_str, "i", 1) == 0)
116 direct = RIP_OFFSET_LIST_IN;
117 else if (strncmp (direct_str, "o", 1) == 0)
118 direct = RIP_OFFSET_LIST_OUT;
121 vty_out (vty, "Invalid direction: %s%s", direct_str, VTY_NEWLINE);
126 metric = atoi (metric_str);
127 if (metric < 0 || metric > 16)
129 vty_out (vty, "Invalid metric: %s%s", metric_str, VTY_NEWLINE);
133 /* Get offset-list structure with interface name. */
134 offset = rip_offset_list_get (ifname);
136 if (offset->direct[direct].alist_name)
137 free (offset->direct[direct].alist_name);
138 offset->direct[direct].alist_name = strdup (alist);
139 offset->direct[direct].metric = metric;
145 rip_offset_list_unset (struct vty *vty, const char *alist,
146 const char *direct_str, const char *metric_str,
151 struct rip_offset_list *offset;
153 /* Check direction. */
154 if (strncmp (direct_str, "i", 1) == 0)
155 direct = RIP_OFFSET_LIST_IN;
156 else if (strncmp (direct_str, "o", 1) == 0)
157 direct = RIP_OFFSET_LIST_OUT;
160 vty_out (vty, "Invalid direction: %s%s", direct_str, VTY_NEWLINE);
165 metric = atoi (metric_str);
166 if (metric < 0 || metric > 16)
168 vty_out (vty, "Invalid metric: %s%s", metric_str, VTY_NEWLINE);
172 /* Get offset-list structure with interface name. */
173 offset = rip_offset_list_lookup (ifname);
177 if (offset->direct[direct].alist_name)
178 free (offset->direct[direct].alist_name);
179 offset->direct[direct].alist_name = NULL;
181 if (offset->direct[RIP_OFFSET_LIST_IN].alist_name == NULL &&
182 offset->direct[RIP_OFFSET_LIST_OUT].alist_name == NULL)
184 listnode_delete (rip_offset_list_master, offset);
186 free (offset->ifname);
187 rip_offset_list_free (offset);
192 vty_out (vty, "Can't find offset-list%s", VTY_NEWLINE);
198 #define OFFSET_LIST_IN_NAME(O) ((O)->direct[RIP_OFFSET_LIST_IN].alist_name)
199 #define OFFSET_LIST_IN_METRIC(O) ((O)->direct[RIP_OFFSET_LIST_IN].metric)
201 #define OFFSET_LIST_OUT_NAME(O) ((O)->direct[RIP_OFFSET_LIST_OUT].alist_name)
202 #define OFFSET_LIST_OUT_METRIC(O) ((O)->direct[RIP_OFFSET_LIST_OUT].metric)
204 /* If metric is modifed return 1. */
206 rip_offset_list_apply_in (struct prefix_ipv4 *p, struct interface *ifp,
209 struct rip_offset_list *offset;
210 struct access_list *alist;
212 /* Look up offset-list with interface name. */
213 offset = rip_offset_list_lookup (ifp->name);
214 if (offset && OFFSET_LIST_IN_NAME (offset))
216 alist = access_list_lookup (AFI_IP, OFFSET_LIST_IN_NAME (offset));
219 && access_list_apply (alist, (struct prefix *)p) == FILTER_PERMIT)
221 *metric += OFFSET_LIST_IN_METRIC (offset);
226 /* Look up offset-list without interface name. */
227 offset = rip_offset_list_lookup (NULL);
228 if (offset && OFFSET_LIST_IN_NAME (offset))
230 alist = access_list_lookup (AFI_IP, OFFSET_LIST_IN_NAME (offset));
233 && access_list_apply (alist, (struct prefix *)p) == FILTER_PERMIT)
235 *metric += OFFSET_LIST_IN_METRIC (offset);
243 /* If metric is modifed return 1. */
245 rip_offset_list_apply_out (struct prefix_ipv4 *p, struct interface *ifp,
248 struct rip_offset_list *offset;
249 struct access_list *alist;
251 /* Look up offset-list with interface name. */
252 offset = rip_offset_list_lookup (ifp->name);
253 if (offset && OFFSET_LIST_OUT_NAME (offset))
255 alist = access_list_lookup (AFI_IP, OFFSET_LIST_OUT_NAME (offset));
258 && access_list_apply (alist, (struct prefix *)p) == FILTER_PERMIT)
260 *metric += OFFSET_LIST_OUT_METRIC (offset);
266 /* Look up offset-list without interface name. */
267 offset = rip_offset_list_lookup (NULL);
268 if (offset && OFFSET_LIST_OUT_NAME (offset))
270 alist = access_list_lookup (AFI_IP, OFFSET_LIST_OUT_NAME (offset));
273 && access_list_apply (alist, (struct prefix *)p) == FILTER_PERMIT)
275 *metric += OFFSET_LIST_OUT_METRIC (offset);
283 DEFUN (rip_offset_list,
285 "offset-list WORD (in|out) <0-16>",
286 "Modify RIP metric\n"
288 "For incoming updates\n"
289 "For outgoing updates\n"
292 return rip_offset_list_set (vty, argv[0], argv[1], argv[2], NULL);
295 DEFUN (rip_offset_list_ifname,
296 rip_offset_list_ifname_cmd,
297 "offset-list WORD (in|out) <0-16> IFNAME",
298 "Modify RIP metric\n"
300 "For incoming updates\n"
301 "For outgoing updates\n"
303 "Interface to match\n")
305 return rip_offset_list_set (vty, argv[0], argv[1], argv[2], argv[3]);
308 DEFUN (no_rip_offset_list,
309 no_rip_offset_list_cmd,
310 "no offset-list WORD (in|out) <0-16>",
312 "Modify RIP metric\n"
314 "For incoming updates\n"
315 "For outgoing updates\n"
318 return rip_offset_list_unset (vty, argv[0], argv[1], argv[2], NULL);
321 DEFUN (no_rip_offset_list_ifname,
322 no_rip_offset_list_ifname_cmd,
323 "no offset-list WORD (in|out) <0-16> IFNAME",
325 "Modify RIP metric\n"
327 "For incoming updates\n"
328 "For outgoing updates\n"
330 "Interface to match\n")
332 return rip_offset_list_unset (vty, argv[0], argv[1], argv[2], argv[3]);
336 offset_list_cmp (struct rip_offset_list *o1, struct rip_offset_list *o2)
338 return strcmp_safe (o1->ifname, o2->ifname);
342 offset_list_del (struct rip_offset_list *offset)
344 if (OFFSET_LIST_IN_NAME (offset))
345 free (OFFSET_LIST_IN_NAME (offset));
346 if (OFFSET_LIST_OUT_NAME (offset))
347 free (OFFSET_LIST_OUT_NAME (offset));
349 free (offset->ifname);
350 rip_offset_list_free (offset);
356 rip_offset_list_master = list_new ();
357 rip_offset_list_master->cmp = (int (*)(void *, void *)) offset_list_cmp;
358 rip_offset_list_master->del = (void (*)(void *)) offset_list_del;
360 install_element (RIP_NODE, &rip_offset_list_cmd);
361 install_element (RIP_NODE, &rip_offset_list_ifname_cmd);
362 install_element (RIP_NODE, &no_rip_offset_list_cmd);
363 install_element (RIP_NODE, &no_rip_offset_list_ifname_cmd);
369 list_delete (rip_offset_list_master);
371 rip_offset_list_master = list_new ();
372 rip_offset_list_master->cmp = (int (*)(void *, void *)) offset_list_cmp;
373 rip_offset_list_master->del = (void (*)(void *)) offset_list_del;
377 config_write_rip_offset_list (struct vty *vty)
379 struct listnode *node, *nnode;
380 struct rip_offset_list *offset;
382 for (ALL_LIST_ELEMENTS (rip_offset_list_master, node, nnode, offset))
384 if (! offset->ifname)
386 if (offset->direct[RIP_OFFSET_LIST_IN].alist_name)
387 vty_out (vty, " offset-list %s in %d%s",
388 offset->direct[RIP_OFFSET_LIST_IN].alist_name,
389 offset->direct[RIP_OFFSET_LIST_IN].metric,
391 if (offset->direct[RIP_OFFSET_LIST_OUT].alist_name)
392 vty_out (vty, " offset-list %s out %d%s",
393 offset->direct[RIP_OFFSET_LIST_OUT].alist_name,
394 offset->direct[RIP_OFFSET_LIST_OUT].metric,
399 if (offset->direct[RIP_OFFSET_LIST_IN].alist_name)
400 vty_out (vty, " offset-list %s in %d %s%s",
401 offset->direct[RIP_OFFSET_LIST_IN].alist_name,
402 offset->direct[RIP_OFFSET_LIST_IN].metric,
403 offset->ifname, VTY_NEWLINE);
404 if (offset->direct[RIP_OFFSET_LIST_OUT].alist_name)
405 vty_out (vty, " offset-list %s out %d %s%s",
406 offset->direct[RIP_OFFSET_LIST_OUT].alist_name,
407 offset->direct[RIP_OFFSET_LIST_OUT].metric,
408 offset->ifname, VTY_NEWLINE);