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RPKI: Add 'local address' configuration option

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Allow to explicitly configure the source IP address for RPKI-To-Router
sessions. Predictable source addresses are useful for minimizing the
holes to be poked in ACLs.

Changed from 'source address' to 'local address' by committer.
This commit is contained in:
Job Snijders 2024-02-22 14:58:29 +01:00 committed by Ondrej Zajicek
parent 2d0652dd10
commit e2728c8078
4 changed files with 8 additions and 1 deletions
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4
doc/bird.sgml
View File

@ -5697,6 +5697,7 @@ protocol rpki [<name>] {
roa6 { table <tab>; };
remote <ip> | "<domain>" [port <num>];
port <num>;
local address <ip>;
refresh [keep] <num>;
retry [keep] <num>;
expire [keep] <num>;
@ -5726,6 +5727,9 @@ specify both channels.
number is 323 for transport without any encryption and 22 for transport
with SSH encryption.
<tag>local address <m/ip/</tag>
Define local address we should use as a source address for the RTR session.
<tag>refresh [keep] <m/num/</tag> Time period in seconds. Tells how
long to wait before next attempting to poll the cache using a Serial
Query or a Reset Query packet. Must be lower than 86400 seconds (one

3
proto/rpki/config.Y
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@ -32,7 +32,7 @@ rpki_check_unused_transport(void)
CF_DECLS
CF_KEYWORDS(RPKI, REMOTE, BIRD, PRIVATE, PUBLIC, KEY, TCP, SSH, TRANSPORT, USER,
RETRY, REFRESH, EXPIRE, KEEP, IGNORE, MAX, LENGTH)
RETRY, REFRESH, EXPIRE, KEEP, IGNORE, MAX, LENGTH, LOCAL, ADDRESS)
%type <i> rpki_keep_interval
@ -60,6 +60,7 @@ rpki_proto_item:
| REMOTE rpki_cache_addr
| REMOTE rpki_cache_addr rpki_proto_item_port
| rpki_proto_item_port
| LOCAL ADDRESS ipa { RPKI_CFG->local_ip = $3; }
| TRANSPORT rpki_transport
| REFRESH rpki_keep_interval expr {
if (rpki_check_refresh_interval($3))

1
proto/rpki/rpki.h
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@ -116,6 +116,7 @@ struct rpki_proto {
struct rpki_config {
struct proto_config c;
const char *hostname; /* Full domain name or stringified IP address of cache server */
ip_addr local_ip; /* Source address to use */
ip_addr ip; /* IP address of cache server or IPA_NONE */
u16 port; /* Port number of cache server */
struct rpki_tr_config tr_config; /* Specific transport configuration structure */

1
proto/rpki/transport.c
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@ -82,6 +82,7 @@ rpki_tr_open(struct rpki_tr_sock *tr)
sk->daddr = cf->ip;
sk->dport = cf->port;
sk->host = cf->hostname;
sk->saddr = cf->local_ip;
sk->rbsize = RPKI_RX_BUFFER_SIZE;
sk->tbsize = RPKI_TX_BUFFER_SIZE;
sk->tos = IP_PREC_INTERNET_CONTROL;