Lines Matching refs:rule
49 struct fib_rule *rule; in fib_default_rule_pref() local
54 rule = list_entry(pos->next, struct fib_rule, list); in fib_default_rule_pref()
55 if (rule->pref) in fib_default_rule_pref()
56 return rule->pref - 1; in fib_default_rule_pref()
64 static void notify_rule_change(int event, struct fib_rule *rule,
152 struct fib_rule *rule, *tmp; in fib_rules_cleanup_ops() local
154 list_for_each_entry_safe(rule, tmp, &ops->rules_list, list) { in fib_rules_cleanup_ops()
155 list_del_rcu(&rule->list); in fib_rules_cleanup_ops()
157 ops->delete(rule); in fib_rules_cleanup_ops()
158 fib_rule_put(rule); in fib_rules_cleanup_ops()
175 static int fib_rule_match(struct fib_rule *rule, struct fib_rules_ops *ops, in fib_rule_match() argument
180 if (rule->iifindex && (rule->iifindex != fl->flowi_iif)) in fib_rule_match()
183 if (rule->oifindex && (rule->oifindex != fl->flowi_oif)) in fib_rule_match()
186 if ((rule->mark ^ fl->flowi_mark) & rule->mark_mask) in fib_rule_match()
189 ret = ops->match(rule, fl, flags); in fib_rule_match()
191 return (rule->flags & FIB_RULE_INVERT) ? !ret : ret; in fib_rule_match()
197 struct fib_rule *rule; in fib_rules_lookup() local
202 list_for_each_entry_rcu(rule, &ops->rules_list, list) { in fib_rules_lookup()
204 if (!fib_rule_match(rule, ops, fl, flags)) in fib_rules_lookup()
207 if (rule->action == FR_ACT_GOTO) { in fib_rules_lookup()
210 target = rcu_dereference(rule->ctarget); in fib_rules_lookup()
214 rule = target; in fib_rules_lookup()
217 } else if (rule->action == FR_ACT_NOP) in fib_rules_lookup()
220 err = ops->action(rule, fl, flags, arg); in fib_rules_lookup()
222 if (!err && ops->suppress && ops->suppress(rule, arg)) in fib_rules_lookup()
227 likely(atomic_inc_not_zero(&rule->refcnt))) { in fib_rules_lookup()
228 arg->rule = rule; in fib_rules_lookup()
270 struct fib_rule *rule, *r, *last = NULL; in fib_nl_newrule() local
291 rule = kzalloc(ops->rule_size, GFP_KERNEL); in fib_nl_newrule()
292 if (rule == NULL) { in fib_nl_newrule()
296 rule->fr_net = net; in fib_nl_newrule()
299 rule->pref = nla_get_u32(tb[FRA_PRIORITY]); in fib_nl_newrule()
304 rule->iifindex = -1; in fib_nl_newrule()
305 nla_strlcpy(rule->iifname, tb[FRA_IIFNAME], IFNAMSIZ); in fib_nl_newrule()
306 dev = __dev_get_by_name(net, rule->iifname); in fib_nl_newrule()
308 rule->iifindex = dev->ifindex; in fib_nl_newrule()
314 rule->oifindex = -1; in fib_nl_newrule()
315 nla_strlcpy(rule->oifname, tb[FRA_OIFNAME], IFNAMSIZ); in fib_nl_newrule()
316 dev = __dev_get_by_name(net, rule->oifname); in fib_nl_newrule()
318 rule->oifindex = dev->ifindex; in fib_nl_newrule()
322 rule->mark = nla_get_u32(tb[FRA_FWMARK]); in fib_nl_newrule()
323 if (rule->mark) in fib_nl_newrule()
327 rule->mark_mask = 0xFFFFFFFF; in fib_nl_newrule()
331 rule->mark_mask = nla_get_u32(tb[FRA_FWMASK]); in fib_nl_newrule()
333 rule->action = frh->action; in fib_nl_newrule()
334 rule->flags = frh->flags; in fib_nl_newrule()
335 rule->table = frh_get_table(frh, tb); in fib_nl_newrule()
337 rule->suppress_prefixlen = nla_get_u32(tb[FRA_SUPPRESS_PREFIXLEN]); in fib_nl_newrule()
339 rule->suppress_prefixlen = -1; in fib_nl_newrule()
342 rule->suppress_ifgroup = nla_get_u32(tb[FRA_SUPPRESS_IFGROUP]); in fib_nl_newrule()
344 rule->suppress_ifgroup = -1; in fib_nl_newrule()
347 rule->pref = ops->default_pref(ops); in fib_nl_newrule()
351 if (rule->action != FR_ACT_GOTO) in fib_nl_newrule()
354 rule->target = nla_get_u32(tb[FRA_GOTO]); in fib_nl_newrule()
356 if (rule->target <= rule->pref) in fib_nl_newrule()
360 if (r->pref == rule->target) { in fib_nl_newrule()
361 RCU_INIT_POINTER(rule->ctarget, r); in fib_nl_newrule()
366 if (rcu_dereference_protected(rule->ctarget, 1) == NULL) in fib_nl_newrule()
368 } else if (rule->action == FR_ACT_GOTO) in fib_nl_newrule()
371 err = ops->configure(rule, skb, frh, tb); in fib_nl_newrule()
376 if (r->pref > rule->pref) in fib_nl_newrule()
381 fib_rule_get(rule); in fib_nl_newrule()
384 list_add_rcu(&rule->list, &last->list); in fib_nl_newrule()
386 list_add_rcu(&rule->list, &ops->rules_list); in fib_nl_newrule()
395 r->target == rule->pref && in fib_nl_newrule()
397 rcu_assign_pointer(r->ctarget, rule); in fib_nl_newrule()
404 if (rule->action == FR_ACT_GOTO) in fib_nl_newrule()
410 notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).portid); in fib_nl_newrule()
416 kfree(rule); in fib_nl_newrule()
427 struct fib_rule *rule, *tmp; in fib_nl_delrule() local
448 list_for_each_entry(rule, &ops->rules_list, list) { in fib_nl_delrule()
449 if (frh->action && (frh->action != rule->action)) in fib_nl_delrule()
453 (frh_get_table(frh, tb) != rule->table)) in fib_nl_delrule()
457 (rule->pref != nla_get_u32(tb[FRA_PRIORITY]))) in fib_nl_delrule()
461 nla_strcmp(tb[FRA_IIFNAME], rule->iifname)) in fib_nl_delrule()
465 nla_strcmp(tb[FRA_OIFNAME], rule->oifname)) in fib_nl_delrule()
469 (rule->mark != nla_get_u32(tb[FRA_FWMARK]))) in fib_nl_delrule()
473 (rule->mark_mask != nla_get_u32(tb[FRA_FWMASK]))) in fib_nl_delrule()
476 if (!ops->compare(rule, frh, tb)) in fib_nl_delrule()
479 if (rule->flags & FIB_RULE_PERMANENT) { in fib_nl_delrule()
485 err = ops->delete(rule); in fib_nl_delrule()
490 list_del_rcu(&rule->list); in fib_nl_delrule()
492 if (rule->action == FR_ACT_GOTO) { in fib_nl_delrule()
494 if (rtnl_dereference(rule->ctarget) == NULL) in fib_nl_delrule()
506 if (rtnl_dereference(tmp->ctarget) == rule) { in fib_nl_delrule()
513 notify_rule_change(RTM_DELRULE, rule, ops, nlh, in fib_nl_delrule()
515 fib_rule_put(rule); in fib_nl_delrule()
528 struct fib_rule *rule) in fib_rule_nlmsg_size() argument
541 payload += ops->nlmsg_payload(rule); in fib_rule_nlmsg_size()
546 static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule, in fib_nl_fill_rule() argument
559 frh->table = rule->table; in fib_nl_fill_rule()
560 if (nla_put_u32(skb, FRA_TABLE, rule->table)) in fib_nl_fill_rule()
562 if (nla_put_u32(skb, FRA_SUPPRESS_PREFIXLEN, rule->suppress_prefixlen)) in fib_nl_fill_rule()
566 frh->action = rule->action; in fib_nl_fill_rule()
567 frh->flags = rule->flags; in fib_nl_fill_rule()
569 if (rule->action == FR_ACT_GOTO && in fib_nl_fill_rule()
570 rcu_access_pointer(rule->ctarget) == NULL) in fib_nl_fill_rule()
573 if (rule->iifname[0]) { in fib_nl_fill_rule()
574 if (nla_put_string(skb, FRA_IIFNAME, rule->iifname)) in fib_nl_fill_rule()
576 if (rule->iifindex == -1) in fib_nl_fill_rule()
580 if (rule->oifname[0]) { in fib_nl_fill_rule()
581 if (nla_put_string(skb, FRA_OIFNAME, rule->oifname)) in fib_nl_fill_rule()
583 if (rule->oifindex == -1) in fib_nl_fill_rule()
587 if ((rule->pref && in fib_nl_fill_rule()
588 nla_put_u32(skb, FRA_PRIORITY, rule->pref)) || in fib_nl_fill_rule()
589 (rule->mark && in fib_nl_fill_rule()
590 nla_put_u32(skb, FRA_FWMARK, rule->mark)) || in fib_nl_fill_rule()
591 ((rule->mark_mask || rule->mark) && in fib_nl_fill_rule()
592 nla_put_u32(skb, FRA_FWMASK, rule->mark_mask)) || in fib_nl_fill_rule()
593 (rule->target && in fib_nl_fill_rule()
594 nla_put_u32(skb, FRA_GOTO, rule->target))) in fib_nl_fill_rule()
597 if (rule->suppress_ifgroup != -1) { in fib_nl_fill_rule()
598 if (nla_put_u32(skb, FRA_SUPPRESS_IFGROUP, rule->suppress_ifgroup)) in fib_nl_fill_rule()
602 if (ops->fill(rule, skb, frh) < 0) in fib_nl_fill_rule()
617 struct fib_rule *rule; in dump_rules() local
621 list_for_each_entry_rcu(rule, &ops->rules_list, list) { in dump_rules()
625 err = fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid, in dump_rules()
676 static void notify_rule_change(int event, struct fib_rule *rule, in notify_rule_change() argument
685 skb = nlmsg_new(fib_rule_nlmsg_size(ops, rule), GFP_KERNEL); in notify_rule_change()
689 err = fib_nl_fill_rule(skb, rule, pid, nlh->nlmsg_seq, event, 0, ops); in notify_rule_change()
706 struct fib_rule *rule; in attach_rules() local
708 list_for_each_entry(rule, rules, list) { in attach_rules()
709 if (rule->iifindex == -1 && in attach_rules()
710 strcmp(dev->name, rule->iifname) == 0) in attach_rules()
711 rule->iifindex = dev->ifindex; in attach_rules()
712 if (rule->oifindex == -1 && in attach_rules()
713 strcmp(dev->name, rule->oifname) == 0) in attach_rules()
714 rule->oifindex = dev->ifindex; in attach_rules()
720 struct fib_rule *rule; in detach_rules() local
722 list_for_each_entry(rule, rules, list) { in detach_rules()
723 if (rule->iifindex == dev->ifindex) in detach_rules()
724 rule->iifindex = -1; in detach_rules()
725 if (rule->oifindex == dev->ifindex) in detach_rules()
726 rule->oifindex = -1; in detach_rules()