9a158361da
addresses per interface (needed for example for IPv6 support). Visible changes: o struct iface now contains a list of all interface addresses (represented by struct ifa), iface->addr points to the primary address (if any). o Interface has IF_UP set iff it's up and it has a primary address. o IF_UP is now independent on IF_IGNORED (i.e., you need to test IF_IGNORED in the protocols; I've added this, but please check). o The if_notify_change hook has been simplified (only one interface pointer etc.). o Introduced a ifa_notify_change hook. (For now, only the Direct protocol does use it -- it's wise to just listen to device routes in all other protocols.) o Removed IF_CHANGE_FLAGS notifier flag (it was meaningless anyway). o Updated all the code except netlink (I'll look at it tomorrow) to match the new semantics (please look at your code to ensure I did it right). Things to fix: o Netlink. o Make krt-iface interpret "eth0:1"-type aliases as secondary addresses.
82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
/*
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* BIRD -- Direct Device Routes
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*
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* (c) 1998--1999 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#define LOCAL_DEBUG
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#include <string.h>
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#include "nest/bird.h"
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#include "nest/iface.h"
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#include "nest/protocol.h"
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#include "nest/route.h"
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#include "nest/rt-dev.h"
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#include "conf/conf.h"
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#include "lib/resource.h"
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static void
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dev_ifa_notify(struct proto *p, unsigned c, struct ifa *ad)
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{
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struct rt_dev_config *P = (void *) p->cf;
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if (!iface_patt_match(&P->iface_list, ad->iface))
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return;
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if (c & IF_CHANGE_DOWN)
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{
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net *n;
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DBG("dev_if_notify: %s:%I going down\n", ad->iface->name, ad->ip);
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n = net_find(p->table, ad->prefix, ad->pxlen);
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if (!n)
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{
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debug("dev_if_notify: device shutdown: prefix not found\n");
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return;
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}
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rte_update(n, p, NULL);
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}
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else if (c & IF_CHANGE_UP)
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{
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rta *a, A;
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net *n;
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rte *e;
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debug("dev_if_notify: %s:%I going up\n", ad->iface->name, ad->ip);
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bzero(&A, sizeof(A));
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A.proto = p;
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A.source = RTS_DEVICE;
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A.scope = ad->scope;
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A.cast = RTC_UNICAST;
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A.dest = RTD_DEVICE;
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A.iface = ad->iface;
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A.attrs = NULL;
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a = rta_lookup(&A);
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if (ad->flags & IF_UNNUMBERED)
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n = net_get(p->table, ad->opposite, ad->pxlen);
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else
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n = net_get(p->table, ad->prefix, ad->pxlen);
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e = rte_get_temp(a);
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e->net = n;
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e->pflags = 0;
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rte_update(n, p, e);
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}
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}
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static struct proto *
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dev_init(struct proto_config *c)
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{
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struct proto *p = proto_new(c, sizeof(struct proto));
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p->ifa_notify = dev_ifa_notify;
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return p;
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}
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struct protocol proto_device = {
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name: "Direct",
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priority: 90,
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init: dev_init,
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};
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