diff options
Diffstat (limited to 'nest/rt-table.c')
| -rw-r--r-- | nest/rt-table.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/nest/rt-table.c b/nest/rt-table.c index 845b2483..e4b27814 100644 --- a/nest/rt-table.c +++ b/nest/rt-table.c @@ -21,11 +21,15 @@ * on the list being the best one (i.e., the one we currently use * for routing), the order of the other ones is undetermined. * - * The &rte contains information specific to the route (preference, protocol - * metrics, time of last modification etc.) and a pointer to a &rta structure - * (see the route attribute module for a precise explanation) holding the - * remaining route attributes which are expected to be shared by multiple - * routes in order to conserve memory. + * The &rte contains information about the route. There are net and src, which + * together forms a key identifying the route in a routing table. There is a + * pointer to a &rta structure (see the route attribute module for a precise + * explanation) holding the route attributes, which are primary data about the + * route. There are several technical fields used by routing table code (route + * id, REF_* flags), There is also the pflags field, holding protocol-specific + * flags. They are not used by routing table code, but by protocol-specific + * hooks. In contrast to route attributes, they are not primary data and their + * validity is also limited to the routing table. * * There are several mechanisms that allow automatic update of routes in one * routing table (dst) as a result of changes in another routing table (src). @@ -558,10 +562,9 @@ rte_find(net *net, struct rte_src *src) * rte_get_temp - get a temporary &rte * @a: attributes to assign to the new route (a &rta; in case it's * un-cached, rte_update() will create a cached copy automatically) + * @src: route source * * Create a temporary &rte and bind it with the attributes @a. - * Also set route preference to the default preference set for - * the protocol. */ rte * rte_get_temp(rta *a, struct rte_src *src) @@ -571,6 +574,7 @@ rte_get_temp(rta *a, struct rte_src *src) e->attrs = a; e->id = 0; e->flags = 0; + e->pflags = 0; rt_lock_source(e->src = src); return e; } @@ -1205,10 +1209,9 @@ rte_free_quick(rte *e) static int rte_same(rte *x, rte *y) { - /* rte.flags are not checked, as they are mostly internal to rtable */ + /* rte.flags / rte.pflags are not checked, as they are internal to rtable */ return x->attrs == y->attrs && - x->pflags == y->pflags && x->src == y->src && rte_is_filtered(x) == rte_is_filtered(y); } |