#include "lib/resource.h"
#include "lib/string.h"
+
static void
-dev_ifa_notify(struct proto *p, unsigned c, struct ifa *ad)
+dev_ifa_notify(struct proto *P, uint flags, struct ifa *ad)
{
- struct rt_dev_config *P = (void *) p->cf;
+ struct rt_dev_proto *p = (void *) P;
+ struct rt_dev_config *cf = (void *) P->cf;
+ struct channel *c;
+ net_addr *net = &ad->prefix;
+
+ if (!EMPTY_LIST(cf->iface_list) &&
+ !iface_patt_find(&cf->iface_list, ad->iface, ad))
+ /* Empty list is automatically treated as "*" */
+ return;
- if (!EMPTY_LIST(P->iface_list) &&
- !iface_patt_find(&P->iface_list, ad->iface))
- /* Empty list is automagically treated as "*" */
+ if (ad->flags & IA_SECONDARY)
return;
if (ad->scope <= SCOPE_LINK)
return;
- if (c & IF_CHANGE_DOWN)
- {
- net *n;
+ if (ad->prefix.type == NET_IP4)
+ c = p->ip4_channel;
+ else if (ad->prefix.type == NET_IP6)
+ c = p->ip6_channel;
+ else
+ return;
+ if (!c)
+ return;
+
+ /* For IPv6 SADR, replace regular prefix with SADR prefix */
+ if (c->net_type == NET_IP6_SADR)
+ {
+ net = alloca(sizeof(net_addr_ip6_sadr));
+ net_fill_ip6_sadr(net, net6_prefix(&ad->prefix), net6_pxlen(&ad->prefix), IP6_NONE, 0);
+ }
+
+ if (flags & IF_CHANGE_DOWN)
+ {
DBG("dev_if_notify: %s:%I going down\n", ad->iface->name, ad->ip);
- n = net_find(p->table, ad->prefix, ad->pxlen);
- if (!n)
- {
- DBG("dev_if_notify: device shutdown: prefix not found\n");
- return;
- }
- rte_update(p->table, n, p, p, NULL);
+
+ /* Use iface ID as local source ID */
+ struct rte_src *src = rt_get_source(P, ad->iface->index);
+ rte_update2(c, net, NULL, src);
}
- else if (c & IF_CHANGE_UP)
+ else if (flags & IF_CHANGE_UP)
{
- rta *a, A;
- net *n;
+ rta *a;
rte *e;
DBG("dev_if_notify: %s:%I going up\n", ad->iface->name, ad->ip);
- bzero(&A, sizeof(A));
- A.proto = p;
- A.source = RTS_DEVICE;
- A.scope = SCOPE_UNIVERSE;
- A.cast = RTC_UNICAST;
- A.dest = RTD_DEVICE;
- A.iface = ad->iface;
- A.eattrs = NULL;
- a = rta_lookup(&A);
- n = net_get(p->table, ad->prefix, ad->pxlen);
+
+ if (cf->check_link && !(ad->iface->flags & IF_LINK_UP))
+ return;
+
+ /* Use iface ID as local source ID */
+ struct rte_src *src = rt_get_source(P, ad->iface->index);
+
+ rta a0 = {
+ .src = src,
+ .source = RTS_DEVICE,
+ .scope = SCOPE_UNIVERSE,
+ .dest = RTD_UNICAST,
+ .nh.iface = ad->iface,
+ };
+
+ a = rta_lookup(&a0);
e = rte_get_temp(a);
- e->net = n;
e->pflags = 0;
- rte_update(p->table, n, p, p, e);
+ rte_update2(c, net, e, src);
}
}
+static void
+dev_if_notify(struct proto *p, uint c, struct iface *iface)
+{
+ struct rt_dev_config *cf = (void *) p->cf;
+
+ if (c & (IF_CHANGE_UP | IF_CHANGE_DOWN))
+ return;
+
+ if ((c & IF_CHANGE_LINK) && cf->check_link)
+ {
+ uint ac = (iface->flags & IF_LINK_UP) ? IF_CHANGE_UP : IF_CHANGE_DOWN;
+
+ struct ifa *a;
+ WALK_LIST(a, iface->addrs)
+ dev_ifa_notify(p, ac, a);
+ }
+}
+
+static void
+dev_postconfig(struct proto_config *CF)
+{
+ struct rt_dev_config *cf = (void *) CF;
+ struct channel_config *ip4, *ip6, *ip6_sadr;
+
+ ip4 = proto_cf_find_channel(CF, NET_IP4);
+ ip6 = proto_cf_find_channel(CF, NET_IP6);
+ ip6_sadr = proto_cf_find_channel(CF, NET_IP6_SADR);
+
+ if (ip6 && ip6_sadr)
+ cf_error("Both ipv6 and ipv6-sadr channels");
+
+ cf->ip4_channel = ip4;
+ cf->ip6_channel = ip6 ?: ip6_sadr;
+}
+
static struct proto *
-dev_init(struct proto_config *c)
+dev_init(struct proto_config *CF)
{
- struct proto *p = proto_new(c, sizeof(struct proto));
+ struct proto *P = proto_new(CF);
+ struct rt_dev_proto *p = (void *) P;
+ struct rt_dev_config *cf = (void *) CF;
+
+ proto_configure_channel(P, &p->ip4_channel, cf->ip4_channel);
+ proto_configure_channel(P, &p->ip6_channel, cf->ip6_channel);
- p->ifa_notify = dev_ifa_notify;
- return p;
+ P->if_notify = dev_if_notify;
+ P->ifa_notify = dev_ifa_notify;
+
+ return P;
}
static int
-dev_reconfigure(struct proto *p, struct proto_config *new)
+dev_reconfigure(struct proto *P, struct proto_config *CF)
+{
+ struct rt_dev_proto *p = (void *) P;
+ struct rt_dev_config *o = (void *) P->cf;
+ struct rt_dev_config *n = (void *) CF;
+
+ if (!iface_patts_equal(&o->iface_list, &n->iface_list, NULL) ||
+ (o->check_link != n->check_link))
+ return 0;
+
+ return
+ proto_configure_channel(P, &p->ip4_channel, n->ip4_channel) &&
+ proto_configure_channel(P, &p->ip6_channel, n->ip6_channel);
+
+ return 1;
+}
+
+static void
+dev_copy_config(struct proto_config *dest, struct proto_config *src)
{
- struct rt_dev_config *o = (struct rt_dev_config *) p->cf;
- struct rt_dev_config *n = (struct rt_dev_config *) new;
-
- return iface_patts_equal(&o->iface_list, &n->iface_list, NULL);
+ struct rt_dev_config *d = (void *) dest;
+ struct rt_dev_config *s = (void *) src;
+
+ /*
+ * We copy iface_list as ifaces can be shared by more direct protocols.
+ * Copy suffices to be is shallow, because new nodes can be added, but
+ * old nodes cannot be modified (although they contain internal lists).
+ */
+ cfg_copy_list(&d->iface_list, &s->iface_list, sizeof(struct iface_patt));
+
+ d->check_link = s->check_link;
}
struct protocol proto_device = {
- name: "Direct",
- template: "direct%d",
- init: dev_init,
- reconfigure: dev_reconfigure
+ .name = "Direct",
+ .template = "direct%d",
+ .class = PROTOCOL_DIRECT,
+ .preference = DEF_PREF_DIRECT,
+ .channel_mask = NB_IP | NB_IP6_SADR,
+ .proto_size = sizeof(struct rt_dev_proto),
+ .config_size = sizeof(struct rt_dev_config),
+ .postconfig = dev_postconfig,
+ .init = dev_init,
+ .reconfigure = dev_reconfigure,
+ .copy_config = dev_copy_config
};