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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 is a split-commit of the neighboring aggregator branch
with a bit improved lvalue handling, to have easier merge into v3.
This commit is contained in:
Igor Putovny
2023-06-21 13:15:07 +02:00
committed by Maria Matejka
parent ba91f4c831
commit f42c118aa7
18 changed files with 1263 additions and 7 deletions
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5
nest/rt-attr.c
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@@ -75,6 +75,8 @@ const char * const rta_src_names[RTS_MAX] = {
[RTS_PIPE] = "pipe",
[RTS_BABEL] = "Babel",
[RTS_RPKI] = "RPKI",
[RTS_PERF] = "Perf",
[RTS_AGGREGATED] = "aggregated",
};
const char * rta_dest_names[RTD_MAX] = {
@@ -1272,7 +1274,8 @@ rta_dump(rta *a)
static char *rts[] = { "", "RTS_STATIC", "RTS_INHERIT", "RTS_DEVICE",
"RTS_STAT_DEV", "RTS_REDIR", "RTS_RIP",
"RTS_OSPF", "RTS_OSPF_IA", "RTS_OSPF_EXT1",
"RTS_OSPF_EXT2", "RTS_BGP", "RTS_PIPE", "RTS_BABEL" };
"RTS_OSPF_EXT2", "RTS_BGP", "RTS_PIPE", "RTS_BABEL",
"RTS_RPKI", "RTS_PERF", "RTS_AGGREGATED", };
static char *rtd[] = { "", " DEV", " HOLE", " UNREACH", " PROHIBIT" };
debug("pref=%d uc=%d %s %s%s h=%04x",