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Basic route aggregation

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Add a new protocol offering route aggregation.

User can specify list of route attributes in the configuration file and
run route aggregation on the export side of the pipe protocol. Routes are
sorted and for every group of equivalent routes new route is created and
exported to the routing table. It is also possible to specify filter
which will run for every route before aggregation.

Furthermore, it will be possible to set attributes of new routes
according to attributes of the aggregated routes.

This is a work in progress.

Original work by Igor Putovny, subsequent cleanups and finalization by
Maria Matejka.
This commit is contained in:
Igor Putovny
2023-06-21 13:15:07 +02:00
committed by Ondrej Zajicek
parent 0a729b509c
commit 977b82fba4
23 changed files with 1257 additions and 39 deletions
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5
nest/route.h
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@ -342,6 +342,8 @@ void rt_prune_sync(rtable *t, int all);
int rte_update_out(struct channel *c, const net_addr *n, rte *new, rte *old0, int refeed);
struct rtable_config *rt_new_table(struct symbol *s, uint addr_type);
int rte_same(rte *x, rte *y);
static inline int rt_is_ip(rtable *tab)
{ return (tab->addr_type == NET_IP4) || (tab->addr_type == NET_IP6); }
@ -474,7 +476,8 @@ typedef struct rta {
#define RTS_BABEL 13 /* Babel route */
#define RTS_RPKI 14 /* Route Origin Authorization */
#define RTS_PERF 15 /* Perf checker */
#define RTS_MAX 16
#define RTS_AGGREGATED 16 /* Aggregated route */
#define RTS_MAX 17
#define RTD_NONE 0 /* Undefined next hop */
#define RTD_UNICAST 1 /* Next hop is neighbor router */