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freebsd-ports/net/openbgpd/files/patch-bgpd_rde.c
Hiroki Sato 0c2d600ee5 - Fix a bug in embedded scope id handling in LLA which prevented it from 
working on 10.x.
- Add LICENSE.
2014-05-16 01:29:01 +00:00

2615 lines
74 KiB
C
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Index: bgpd/rde.c
===================================================================
RCS file: /home/cvs/private/hrs/openbgpd/bgpd/rde.c,v
retrieving revision 1.1.1.8
retrieving revision 1.12
diff -u -p -r1.1.1.8 -r1.12
--- bgpd/rde.c 14 Feb 2010 20:19:57 -0000 1.1.1.8
+++ bgpd/rde.c 16 May 2014 00:36:26 -0000 1.12
@@ -1,4 +1,4 @@
-/* $OpenBSD: rde.c,v 1.264 2009/06/29 12:22:16 claudio Exp $ */
+/* $OpenBSD: rde.c,v 1.320 2012/09/18 09:45:51 claudio Exp $ */
/*
* Copyright (c) 2003, 2004 Henning Brauer <henning@openbsd.org>
@@ -18,10 +18,11 @@
#include <sys/types.h>
#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/resource.h>
#include <errno.h>
#include <ifaddrs.h>
-#include <limits.h>
#include <pwd.h>
#include <poll.h>
#include <signal.h>
@@ -50,13 +51,18 @@ void rde_update_withdraw(struct rde_pe
u_int8_t);
int rde_attr_parse(u_char *, u_int16_t, struct rde_peer *,
struct rde_aspath *, struct mpattr *);
+int rde_attr_add(struct rde_aspath *, u_char *, u_int16_t);
u_int8_t rde_attr_missing(struct rde_aspath *, int, u_int16_t);
-int rde_get_mp_nexthop(u_char *, u_int16_t, u_int16_t,
- struct rde_aspath *);
+int rde_get_mp_nexthop(u_char *, u_int16_t, u_int8_t,
+ struct rde_aspath *, struct rde_peer *);
+int rde_update_extract_prefix(u_char *, u_int16_t, void *,
+ u_int8_t, u_int8_t);
int rde_update_get_prefix(u_char *, u_int16_t, struct bgpd_addr *,
u_int8_t *);
int rde_update_get_prefix6(u_char *, u_int16_t, struct bgpd_addr *,
u_int8_t *);
+int rde_update_get_vpn4(u_char *, u_int16_t, struct bgpd_addr *,
+ u_int8_t *);
void rde_update_err(struct rde_peer *, u_int8_t , u_int8_t,
void *, u_int16_t);
void rde_update_log(const char *, u_int16_t,
@@ -78,11 +84,15 @@ void rde_dump_ctx_new(struct ctl_show_
void rde_dump_mrt_new(struct mrt *, pid_t, int);
void rde_dump_done(void *);
+int rde_rdomain_import(struct rde_aspath *, struct rdomain *);
void rde_up_dump_upcall(struct rib_entry *, void *);
void rde_softreconfig_out(struct rib_entry *, void *);
void rde_softreconfig_in(struct rib_entry *, void *);
+void rde_softreconfig_load(struct rib_entry *, void *);
+void rde_softreconfig_load_peer(struct rib_entry *, void *);
+void rde_softreconfig_unload_peer(struct rib_entry *, void *);
void rde_update_queue_runner(void);
-void rde_update6_queue_runner(void);
+void rde_update6_queue_runner(u_int8_t);
void peer_init(u_int32_t);
void peer_shutdown(void);
@@ -91,10 +101,12 @@ struct rde_peer *peer_add(u_int32_t, str
struct rde_peer *peer_get(u_int32_t);
void peer_up(u_int32_t, struct session_up *);
void peer_down(u_int32_t);
-void peer_dump(u_int32_t, u_int16_t, u_int8_t);
-void peer_send_eor(struct rde_peer *, u_int16_t, u_int16_t);
+void peer_flush(struct rde_peer *, u_int8_t);
+void peer_stale(u_int32_t, u_int8_t);
+void peer_recv_eor(struct rde_peer *, u_int8_t);
+void peer_dump(u_int32_t, u_int8_t);
+void peer_send_eor(struct rde_peer *, u_int8_t);
-void network_init(struct network_head *);
void network_add(struct network_config *, int);
void network_delete(struct network_config *, int);
void network_dump_upcall(struct rib_entry *, void *);
@@ -108,6 +120,7 @@ time_t reloadtime;
struct rde_peer_head peerlist;
struct rde_peer *peerself;
struct filter_head *rules_l, *newrules;
+struct rdomain_head *rdomains_l, *newdomains;
struct imsgbuf *ibuf_se;
struct imsgbuf *ibuf_se_ctl;
struct imsgbuf *ibuf_main;
@@ -120,11 +133,12 @@ struct rde_dump_ctx {
};
struct rde_mrt_ctx {
- struct mrt mrt;
- struct rib_context ribctx;
+ struct mrt mrt;
+ struct rib_context ribctx;
+ LIST_ENTRY(rde_mrt_ctx) entry;
};
-struct mrt_head rde_mrts = LIST_HEAD_INITIALIZER(rde_mrts);
+LIST_HEAD(, rde_mrt_ctx) rde_mrts = LIST_HEAD_INITIALIZER(rde_mrts);
u_int rde_mrt_cnt;
void
@@ -144,24 +158,17 @@ u_int32_t attrhashsize = 512;
u_int32_t nexthophashsize = 64;
pid_t
-rde_main(struct bgpd_config *config, struct peer *peer_l,
- struct network_head *net_l, struct filter_head *rules,
- struct mrt_head *mrt_l, struct rib_names *rib_n, int pipe_m2r[2],
- int pipe_s2r[2], int pipe_m2s[2], int pipe_s2rctl[2], int debug)
+rde_main(int pipe_m2r[2], int pipe_s2r[2], int pipe_m2s[2], int pipe_s2rctl[2],
+ int debug)
{
pid_t pid;
struct passwd *pw;
- struct peer *p;
- struct listen_addr *la;
struct pollfd *pfd = NULL;
- struct filter_rule *f;
- struct filter_set *set;
- struct nexthop *nh;
- struct rde_rib *rr;
- struct mrt *mrt, *xmrt;
+ struct rde_mrt_ctx *mctx, *xmctx;
void *newp;
u_int pfd_elms = 0, i, j;
int timeout;
+ u_int8_t aid;
switch (pid = fork()) {
case -1:
@@ -172,8 +179,6 @@ rde_main(struct bgpd_config *config, str
return (pid);
}
- conf = config;
-
if ((pw = getpwnam(BGPD_USER)) == NULL)
fatal("getpwnam");
@@ -194,6 +199,8 @@ rde_main(struct bgpd_config *config, str
signal(SIGINT, rde_sighdlr);
signal(SIGPIPE, SIG_IGN);
signal(SIGHUP, SIG_IGN);
+ signal(SIGALRM, SIG_IGN);
+ signal(SIGUSR1, SIG_IGN);
close(pipe_s2r[0]);
close(pipe_s2rctl[0]);
@@ -210,50 +217,25 @@ rde_main(struct bgpd_config *config, str
imsg_init(ibuf_se_ctl, pipe_s2rctl[1]);
imsg_init(ibuf_main, pipe_m2r[1]);
- /* peer list, mrt list and listener list are not used in the RDE */
- while ((p = peer_l) != NULL) {
- peer_l = p->next;
- free(p);
- }
-
- while ((mrt = LIST_FIRST(mrt_l)) != NULL) {
- LIST_REMOVE(mrt, entry);
- free(mrt);
- }
-
- while ((la = TAILQ_FIRST(config->listen_addrs)) != NULL) {
- TAILQ_REMOVE(config->listen_addrs, la, entry);
- close(la->fd);
- free(la);
- }
- free(config->listen_addrs);
-
pt_init();
- while ((rr = SIMPLEQ_FIRST(&ribnames))) {
- SIMPLEQ_REMOVE_HEAD(&ribnames, entry);
- rib_new(-1, rr->name, rr->flags);
- free(rr);
- }
path_init(pathhashsize);
aspath_init(pathhashsize);
attr_init(attrhashsize);
nexthop_init(nexthophashsize);
peer_init(peerhashsize);
- rules_l = rules;
- network_init(net_l);
+ rules_l = calloc(1, sizeof(struct filter_head));
+ if (rules_l == NULL)
+ fatal(NULL);
+ TAILQ_INIT(rules_l);
+ rdomains_l = calloc(1, sizeof(struct rdomain_head));
+ if (rdomains_l == NULL)
+ fatal(NULL);
+ SIMPLEQ_INIT(rdomains_l);
+ if ((conf = calloc(1, sizeof(struct bgpd_config))) == NULL)
+ fatal(NULL);
log_info("route decision engine ready");
- TAILQ_FOREACH(f, rules, entry) {
- f->peer.ribid = rib_find(f->rib);
- TAILQ_FOREACH(set, &f->set, entry) {
- if (set->type == ACTION_SET_NEXTHOP) {
- nh = nexthop_get(&set->action.nexthop);
- nh->refcnt++;
- }
- }
- }
-
while (rde_quit == 0) {
if (pfd_elms < PFD_PIPE_COUNT + rde_mrt_cnt) {
if ((newp = realloc(pfd, sizeof(struct pollfd) *
@@ -287,11 +269,18 @@ rde_main(struct bgpd_config *config, str
timeout = 0;
i = PFD_PIPE_COUNT;
- LIST_FOREACH(mrt, &rde_mrts, entry) {
- if (mrt->wbuf.queued) {
- pfd[i].fd = mrt->wbuf.fd;
+ for (mctx = LIST_FIRST(&rde_mrts); mctx != 0; mctx = xmctx) {
+ xmctx = LIST_NEXT(mctx, entry);
+ if (mctx->mrt.wbuf.queued) {
+ pfd[i].fd = mctx->mrt.wbuf.fd;
pfd[i].events = POLLOUT;
i++;
+ } else if (mctx->mrt.state == MRT_STATE_REMOVE) {
+ close(mctx->mrt.wbuf.fd);
+ LIST_REMOVE(&mctx->ribctx, entry);
+ LIST_REMOVE(mctx, entry);
+ free(mctx);
+ rde_mrt_cnt--;
}
}
@@ -325,24 +314,17 @@ rde_main(struct bgpd_config *config, str
if (pfd[PFD_PIPE_SESSION_CTL].revents & POLLIN)
rde_dispatch_imsg_session(ibuf_se_ctl);
- for (j = PFD_PIPE_COUNT, mrt = LIST_FIRST(&rde_mrts);
- j < i && mrt != 0; j++) {
- xmrt = LIST_NEXT(mrt, entry);
- if (pfd[j].fd == mrt->wbuf.fd &&
+ for (j = PFD_PIPE_COUNT, mctx = LIST_FIRST(&rde_mrts);
+ j < i && mctx != 0; j++) {
+ if (pfd[j].fd == mctx->mrt.wbuf.fd &&
pfd[j].revents & POLLOUT)
- mrt_write(mrt);
- if (mrt->wbuf.queued == 0 &&
- mrt->state == MRT_STATE_REMOVE) {
- close(mrt->wbuf.fd);
- LIST_REMOVE(mrt, entry);
- free(mrt);
- rde_mrt_cnt--;
- }
- mrt = xmrt;
+ mrt_write(&mctx->mrt);
+ mctx = LIST_NEXT(mctx, entry);
}
rde_update_queue_runner();
- rde_update6_queue_runner();
+ for (aid = AID_INET6; aid < AID_MAX; aid++)
+ rde_update6_queue_runner(aid);
if (ibuf_se_ctl->w.queued <= 0)
rib_dump_runner();
}
@@ -351,11 +333,12 @@ rde_main(struct bgpd_config *config, str
if (debug)
rde_shutdown();
- while ((mrt = LIST_FIRST(&rde_mrts)) != NULL) {
- msgbuf_clear(&mrt->wbuf);
- close(mrt->wbuf.fd);
- LIST_REMOVE(mrt, entry);
- free(mrt);
+ while ((mctx = LIST_FIRST(&rde_mrts)) != NULL) {
+ msgbuf_clear(&mctx->mrt.wbuf);
+ close(mctx->mrt.wbuf.fd);
+ LIST_REMOVE(&mctx->ribctx, entry);
+ LIST_REMOVE(mctx, entry);
+ free(mctx);
}
msgbuf_clear(&ibuf_se->w);
@@ -378,13 +361,18 @@ rde_dispatch_imsg_session(struct imsgbuf
struct imsg imsg;
struct peer p;
struct peer_config pconf;
- struct rrefresh r;
- struct rde_peer *peer;
struct session_up sup;
+ struct ctl_show_rib csr;
struct ctl_show_rib_request req;
+ struct rde_peer *peer;
+ struct rde_aspath *asp;
struct filter_set *s;
struct nexthop *nh;
- int n;
+ u_int8_t *asdata;
+ ssize_t n;
+ int verbose;
+ u_int16_t len;
+ u_int8_t aid;
if ((n = imsg_read(ibuf)) == -1)
fatal("rde_dispatch_imsg_session: imsg_read error");
@@ -422,13 +410,56 @@ rde_dispatch_imsg_session(struct imsgbuf
case IMSG_SESSION_DOWN:
peer_down(imsg.hdr.peerid);
break;
+ case IMSG_SESSION_STALE:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(aid)) {
+ log_warnx("rde_dispatch: wrong imsg len");
+ break;
+ }
+ memcpy(&aid, imsg.data, sizeof(aid));
+ if (aid >= AID_MAX)
+ fatalx("IMSG_SESSION_STALE: bad AID");
+ peer_stale(imsg.hdr.peerid, aid);
+ break;
+ case IMSG_SESSION_FLUSH:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(aid)) {
+ log_warnx("rde_dispatch: wrong imsg len");
+ break;
+ }
+ memcpy(&aid, imsg.data, sizeof(aid));
+ if (aid >= AID_MAX)
+ fatalx("IMSG_SESSION_FLUSH: bad AID");
+ if ((peer = peer_get(imsg.hdr.peerid)) == NULL) {
+ log_warnx("rde_dispatch: unknown peer id %d",
+ imsg.hdr.peerid);
+ break;
+ }
+ peer_flush(peer, aid);
+ break;
+ case IMSG_SESSION_RESTARTED:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(aid)) {
+ log_warnx("rde_dispatch: wrong imsg len");
+ break;
+ }
+ memcpy(&aid, imsg.data, sizeof(aid));
+ if (aid >= AID_MAX)
+ fatalx("IMSG_SESSION_RESTARTED: bad AID");
+ if ((peer = peer_get(imsg.hdr.peerid)) == NULL) {
+ log_warnx("rde_dispatch: unknown peer id %d",
+ imsg.hdr.peerid);
+ break;
+ }
+ if (peer->staletime[aid])
+ peer_flush(peer, aid);
+ break;
case IMSG_REFRESH:
- if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(r)) {
+ if (imsg.hdr.len - IMSG_HEADER_SIZE != sizeof(aid)) {
log_warnx("rde_dispatch: wrong imsg len");
break;
}
- memcpy(&r, imsg.data, sizeof(r));
- peer_dump(imsg.hdr.peerid, r.afi, r.safi);
+ memcpy(&aid, imsg.data, sizeof(aid));
+ if (aid >= AID_MAX)
+ fatalx("IMSG_REFRESH: bad AID");
+ peer_dump(imsg.hdr.peerid, aid);
break;
case IMSG_NETWORK_ADD:
if (imsg.hdr.len - IMSG_HEADER_SIZE !=
@@ -440,23 +471,68 @@ rde_dispatch_imsg_session(struct imsgbuf
TAILQ_INIT(&netconf_s.attrset);
session_set = &netconf_s.attrset;
break;
+ case IMSG_NETWORK_ASPATH:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE <
+ sizeof(struct ctl_show_rib)) {
+ log_warnx("rde_dispatch: wrong imsg len");
+ bzero(&netconf_s, sizeof(netconf_s));
+ break;
+ }
+ asdata = imsg.data;
+ asdata += sizeof(struct ctl_show_rib);
+ memcpy(&csr, imsg.data, sizeof(csr));
+ if (csr.aspath_len + sizeof(csr) > imsg.hdr.len -
+ IMSG_HEADER_SIZE) {
+ log_warnx("rde_dispatch: wrong aspath len");
+ bzero(&netconf_s, sizeof(netconf_s));
+ break;
+ }
+ asp = path_get();
+ asp->lpref = csr.local_pref;
+ asp->med = csr.med;
+ asp->weight = csr.weight;
+ asp->flags = csr.flags;
+ asp->origin = csr.origin;
+ asp->flags |= F_PREFIX_ANNOUNCED | F_ANN_DYNAMIC;
+ asp->aspath = aspath_get(asdata, csr.aspath_len);
+ netconf_s.asp = asp;
+ break;
+ case IMSG_NETWORK_ATTR:
+ if (imsg.hdr.len <= IMSG_HEADER_SIZE) {
+ log_warnx("rde_dispatch: wrong imsg len");
+ break;
+ }
+ /* parse path attributes */
+ len = imsg.hdr.len - IMSG_HEADER_SIZE;
+ asp = netconf_s.asp;
+ if (rde_attr_add(asp, imsg.data, len) == -1) {
+ log_warnx("rde_dispatch: bad network "
+ "attribute");
+ path_put(asp);
+ bzero(&netconf_s, sizeof(netconf_s));
+ break;
+ }
+ break;
case IMSG_NETWORK_DONE:
if (imsg.hdr.len != IMSG_HEADER_SIZE) {
log_warnx("rde_dispatch: wrong imsg len");
break;
}
session_set = NULL;
- switch (netconf_s.prefix.af) {
- case AF_INET:
+ switch (netconf_s.prefix.aid) {
+ case AID_INET:
if (netconf_s.prefixlen > 32)
goto badnet;
network_add(&netconf_s, 0);
break;
- case AF_INET6:
+ case AID_INET6:
if (netconf_s.prefixlen > 128)
goto badnet;
network_add(&netconf_s, 0);
break;
+ case 0:
+ /* something failed beforehands */
+ break;
default:
badnet:
log_warnx("rde_dispatch: bad network");
@@ -528,10 +604,14 @@ badnet:
peer->prefix_rcvd_update;
p.stats.prefix_rcvd_withdraw =
peer->prefix_rcvd_withdraw;
+ p.stats.prefix_rcvd_eor =
+ peer->prefix_rcvd_eor;
p.stats.prefix_sent_update =
peer->prefix_sent_update;
p.stats.prefix_sent_withdraw =
peer->prefix_sent_withdraw;
+ p.stats.prefix_sent_eor =
+ peer->prefix_sent_eor;
}
imsg_compose(ibuf_se_ctl, IMSG_CTL_SHOW_NEIGHBOR, 0,
imsg.hdr.pid, -1, &p, sizeof(struct peer));
@@ -544,6 +624,11 @@ badnet:
imsg_compose(ibuf_se_ctl, IMSG_CTL_SHOW_RIB_MEM, 0,
imsg.hdr.pid, -1, &rdemem, sizeof(rdemem));
break;
+ case IMSG_CTL_LOG_VERBOSE:
+ /* already checked by SE */
+ memcpy(&verbose, imsg.data, sizeof(verbose));
+ log_verbose(verbose);
+ break;
default:
break;
}
@@ -554,14 +639,17 @@ badnet:
void
rde_dispatch_imsg_parent(struct imsgbuf *ibuf)
{
+ static struct rdomain *rd;
struct imsg imsg;
struct mrt xmrt;
struct rde_rib rn;
struct rde_peer *peer;
+ struct peer_config *pconf;
struct filter_rule *r;
struct filter_set *s;
struct nexthop *nh;
- int n, fd, reconf_in = 0, reconf_out = 0;
+ int n, fd, reconf_in = 0, reconf_out = 0,
+ reconf_rib = 0;
u_int16_t rid;
if ((n = imsg_read(ibuf)) == -1)
@@ -576,20 +664,12 @@ rde_dispatch_imsg_parent(struct imsgbuf
break;
switch (imsg.hdr.type) {
- case IMSG_RECONF_CONF:
- reloadtime = time(NULL);
- newrules = calloc(1, sizeof(struct filter_head));
- if (newrules == NULL)
- fatal(NULL);
- TAILQ_INIT(newrules);
- if ((nconf = malloc(sizeof(struct bgpd_config))) ==
- NULL)
- fatal(NULL);
- memcpy(nconf, imsg.data, sizeof(struct bgpd_config));
- for (rid = 0; rid < rib_size; rid++)
- ribs[rid].state = RIB_DELETE;
- break;
case IMSG_NETWORK_ADD:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE !=
+ sizeof(struct network_config)) {
+ log_warnx("rde_dispatch: wrong imsg len");
+ break;
+ }
memcpy(&netconf_p, imsg.data, sizeof(netconf_p));
TAILQ_INIT(&netconf_p.attrset);
parent_set = &netconf_p.attrset;
@@ -608,6 +688,26 @@ rde_dispatch_imsg_parent(struct imsgbuf
TAILQ_INIT(&netconf_p.attrset);
network_delete(&netconf_p, 1);
break;
+ case IMSG_RECONF_CONF:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE !=
+ sizeof(struct bgpd_config))
+ fatalx("IMSG_RECONF_CONF bad len");
+ reloadtime = time(NULL);
+ newrules = calloc(1, sizeof(struct filter_head));
+ if (newrules == NULL)
+ fatal(NULL);
+ TAILQ_INIT(newrules);
+ newdomains = calloc(1, sizeof(struct rdomain_head));
+ if (newdomains == NULL)
+ fatal(NULL);
+ SIMPLEQ_INIT(newdomains);
+ if ((nconf = malloc(sizeof(struct bgpd_config))) ==
+ NULL)
+ fatal(NULL);
+ memcpy(nconf, imsg.data, sizeof(struct bgpd_config));
+ for (rid = 0; rid < rib_size; rid++)
+ ribs[rid].state = RECONF_DELETE;
+ break;
case IMSG_RECONF_RIB:
if (imsg.hdr.len - IMSG_HEADER_SIZE !=
sizeof(struct rde_rib))
@@ -615,9 +715,26 @@ rde_dispatch_imsg_parent(struct imsgbuf
memcpy(&rn, imsg.data, sizeof(rn));
rid = rib_find(rn.name);
if (rid == RIB_FAILED)
- rib_new(-1, rn.name, rn.flags);
- else
- ribs[rid].state = RIB_ACTIVE;
+ rib_new(rn.name, rn.rtableid, rn.flags);
+ else if (ribs[rid].rtableid != rn.rtableid ||
+ (ribs[rid].flags & F_RIB_HASNOFIB) !=
+ (rn.flags & F_RIB_HASNOFIB)) {
+ /* Big hammer in the F_RIB_NOFIB case but
+ * not often enough used to optimise it more. */
+ rib_free(&ribs[rid]);
+ rib_new(rn.name, rn.rtableid, rn.flags);
+ } else
+ ribs[rid].state = RECONF_KEEP;
+ break;
+ case IMSG_RECONF_PEER:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE !=
+ sizeof(struct peer_config))
+ fatalx("IMSG_RECONF_PEER bad len");
+ if ((peer = peer_get(imsg.hdr.peerid)) == NULL)
+ break;
+ pconf = imsg.data;
+ strlcpy(peer->conf.rib, pconf->rib,
+ sizeof(peer->conf.rib));
break;
case IMSG_RECONF_FILTER:
if (imsg.hdr.len - IMSG_HEADER_SIZE !=
@@ -631,12 +748,42 @@ rde_dispatch_imsg_parent(struct imsgbuf
parent_set = &r->set;
TAILQ_INSERT_TAIL(newrules, r, entry);
break;
+ case IMSG_RECONF_RDOMAIN:
+ if (imsg.hdr.len - IMSG_HEADER_SIZE !=
+ sizeof(struct rdomain))
+ fatalx("IMSG_RECONF_RDOMAIN bad len");
+ if ((rd = malloc(sizeof(struct rdomain))) == NULL)
+ fatal(NULL);
+ memcpy(rd, imsg.data, sizeof(struct rdomain));
+ TAILQ_INIT(&rd->import);
+ TAILQ_INIT(&rd->export);
+ SIMPLEQ_INSERT_TAIL(newdomains, rd, entry);
+ break;
+ case IMSG_RECONF_RDOMAIN_EXPORT:
+ if (rd == NULL) {
+ log_warnx("rde_dispatch_imsg_parent: "
+ "IMSG_RECONF_RDOMAIN_EXPORT unexpected");
+ break;
+ }
+ parent_set = &rd->export;
+ break;
+ case IMSG_RECONF_RDOMAIN_IMPORT:
+ if (rd == NULL) {
+ log_warnx("rde_dispatch_imsg_parent: "
+ "IMSG_RECONF_RDOMAIN_IMPORT unexpected");
+ break;
+ }
+ parent_set = &rd->import;
+ break;
+ case IMSG_RECONF_RDOMAIN_DONE:
+ parent_set = NULL;
+ break;
case IMSG_RECONF_DONE:
if (nconf == NULL)
fatalx("got IMSG_RECONF_DONE but no config");
if ((nconf->flags & BGPD_FLAG_NO_EVALUATE)
!= (conf->flags & BGPD_FLAG_NO_EVALUATE)) {
- log_warnx( "change to/from route-collector "
+ log_warnx("change to/from route-collector "
"mode ignored");
if (conf->flags & BGPD_FLAG_NO_EVALUATE)
nconf->flags |= BGPD_FLAG_NO_EVALUATE;
@@ -644,10 +791,27 @@ rde_dispatch_imsg_parent(struct imsgbuf
nconf->flags &= ~BGPD_FLAG_NO_EVALUATE;
}
memcpy(conf, nconf, sizeof(struct bgpd_config));
+ conf->listen_addrs = NULL;
+ conf->csock = NULL;
+ conf->rcsock = NULL;
free(nconf);
nconf = NULL;
parent_set = NULL;
- prefix_network_clean(peerself, reloadtime, 0);
+ /* sync peerself with conf */
+ peerself->remote_bgpid = ntohl(conf->bgpid);
+ peerself->conf.local_as = conf->as;
+ peerself->conf.remote_as = conf->as;
+ peerself->short_as = conf->short_as;
+
+ /* apply new set of rdomain, sync will be done later */
+ while ((rd = SIMPLEQ_FIRST(rdomains_l)) != NULL) {
+ SIMPLEQ_REMOVE_HEAD(rdomains_l, entry);
+ filterset_free(&rd->import);
+ filterset_free(&rd->export);
+ free(rd);
+ }
+ free(rdomains_l);
+ rdomains_l = newdomains;
/* check if filter changed */
LIST_FOREACH(peer, &peerlist, peer_l) {
@@ -655,30 +819,59 @@ rde_dispatch_imsg_parent(struct imsgbuf
continue;
peer->reconf_out = 0;
peer->reconf_in = 0;
- if (peer->conf.softreconfig_out &&
- !rde_filter_equal(rules_l, newrules, peer,
- DIR_OUT)) {
- peer->reconf_out = 1;
- reconf_out = 1;
- }
+ peer->reconf_rib = 0;
if (peer->conf.softreconfig_in &&
!rde_filter_equal(rules_l, newrules, peer,
DIR_IN)) {
peer->reconf_in = 1;
reconf_in = 1;
}
+ if (peer->ribid != rib_find(peer->conf.rib)) {
+ rib_dump(&ribs[peer->ribid],
+ rde_softreconfig_unload_peer, peer,
+ AID_UNSPEC);
+ peer->ribid = rib_find(peer->conf.rib);
+ peer->reconf_rib = 1;
+ reconf_rib = 1;
+ continue;
+ }
+ if (peer->conf.softreconfig_out &&
+ !rde_filter_equal(rules_l, newrules, peer,
+ DIR_OUT)) {
+ peer->reconf_out = 1;
+ reconf_out = 1;
+ }
}
- /* XXX this needs rework anyway */
- /* sync local-RIB first */
+ /* bring ribs in sync before softreconfig dance */
+ for (rid = 0; rid < rib_size; rid++) {
+ if (ribs[rid].state == RECONF_DELETE)
+ rib_free(&ribs[rid]);
+ else if (ribs[rid].state == RECONF_REINIT)
+ rib_dump(&ribs[0],
+ rde_softreconfig_load, &ribs[rid],
+ AID_UNSPEC);
+ }
+ /* sync local-RIBs first */
if (reconf_in)
rib_dump(&ribs[0], rde_softreconfig_in, NULL,
- AF_UNSPEC);
+ AID_UNSPEC);
/* then sync peers */
if (reconf_out) {
int i;
- for (i = 1; i < rib_size; i++)
+ for (i = 1; i < rib_size; i++) {
+ if (ribs[i].state == RECONF_REINIT)
+ /* already synced by _load */
+ continue;
rib_dump(&ribs[i], rde_softreconfig_out,
- NULL, AF_UNSPEC);
+ NULL, AID_UNSPEC);
+ }
+ }
+ if (reconf_rib) {
+ LIST_FOREACH(peer, &peerlist, peer_l) {
+ rib_dump(&ribs[peer->ribid],
+ rde_softreconfig_load_peer,
+ peer, AID_UNSPEC);
+ }
}
while ((r = TAILQ_FIRST(rules_l)) != NULL) {
@@ -688,16 +881,18 @@ rde_dispatch_imsg_parent(struct imsgbuf
}
free(rules_l);
rules_l = newrules;
- for (rid = 0; rid < rib_size; rid++) {
- if (ribs[rid].state == RIB_DELETE)
- rib_free(&ribs[rid]);
- }
+
log_info("RDE reconfigured");
+ imsg_compose(ibuf_main, IMSG_RECONF_DONE, 0, 0,
+ -1, NULL, 0);
break;
case IMSG_NEXTHOP_UPDATE:
nexthop_update(imsg.data);
break;
case IMSG_FILTER_SET:
+ if (imsg.hdr.len > IMSG_HEADER_SIZE +
+ sizeof(struct filter_set))
+ fatalx("IMSG_RECONF_CONF bad len");
if (parent_set == NULL) {
log_warnx("rde_dispatch_imsg_parent: "
"IMSG_FILTER_SET unexpected");
@@ -725,7 +920,8 @@ rde_dispatch_imsg_parent(struct imsgbuf
log_warnx("expected to receive fd for mrt dump "
"but didn't receive any");
else if (xmrt.type == MRT_TABLE_DUMP ||
- xmrt.type == MRT_TABLE_DUMP_MP) {
+ xmrt.type == MRT_TABLE_DUMP_MP ||
+ xmrt.type == MRT_TABLE_DUMP_V2) {
rde_dump_mrt_new(&xmrt, imsg.hdr.pid, fd);
} else
close(fd);
@@ -744,6 +940,8 @@ rde_dispatch_imsg_parent(struct imsgbuf
int
rde_update_dispatch(struct imsg *imsg)
{
+ struct bgpd_addr prefix;
+ struct mpattr mpa;
struct rde_peer *peer;
struct rde_aspath *asp = NULL;
u_char *p, *mpp = NULL;
@@ -752,9 +950,8 @@ rde_update_dispatch(struct imsg *imsg)
u_int16_t withdrawn_len;
u_int16_t attrpath_len;
u_int16_t nlri_len;
- u_int8_t prefixlen, safi, subtype;
- struct bgpd_addr prefix;
- struct mpattr mpa;
+ u_int8_t aid, prefixlen, safi, subtype;
+ u_int32_t fas;
peer = peer_get(imsg->hdr.peerid);
if (peer == NULL) /* unknown peer, cannot happen */
@@ -810,26 +1007,21 @@ rde_update_dispatch(struct imsg *imsg)
goto done;
}
- /*
- * if either ATTR_AS4_AGGREGATOR or ATTR_AS4_PATH is present
- * try to fixup the attributes.
- * XXX do not fixup if F_ATTR_LOOP is set.
- */
- if (asp->flags & F_ATTR_AS4BYTE_NEW &&
- !(asp->flags & F_ATTR_LOOP))
- rde_as4byte_fixup(peer, asp);
+ rde_as4byte_fixup(peer, asp);
/* enforce remote AS if requested */
if (asp->flags & F_ATTR_ASPATH &&
- peer->conf.enforce_as == ENFORCE_AS_ON)
- if (peer->conf.remote_as !=
- aspath_neighbor(asp->aspath)) {
- log_peer_warnx(&peer->conf, "bad path, "
- "enforce remote-as enabled");
- rde_update_err(peer, ERR_UPDATE, ERR_UPD_ASPATH,
+ peer->conf.enforce_as == ENFORCE_AS_ON) {
+ fas = aspath_neighbor(asp->aspath);
+ if (peer->conf.remote_as != fas) {
+ log_peer_warnx(&peer->conf, "bad path, "
+ "starting with %s, "
+ "enforce neighbor-as enabled", log_as(fas));
+ rde_update_err(peer, ERR_UPDATE, ERR_UPD_ASPATH,
NULL, 0);
- goto done;
+ goto done;
}
+ }
rde_reflector(peer, asp);
}
@@ -860,9 +1052,9 @@ rde_update_dispatch(struct imsg *imsg)
p += pos;
len -= pos;
- if (peer->capa_received.mp_v4 == SAFI_NONE &&
- peer->capa_received.mp_v6 != SAFI_NONE) {
- log_peer_warnx(&peer->conf, "bad AFI, IPv4 disabled");
+ if (peer->capa.mp[AID_INET] == 0) {
+ log_peer_warnx(&peer->conf,
+ "bad withdraw, %s disabled", aid2str(AID_INET));
rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
NULL, 0);
goto done;
@@ -879,6 +1071,10 @@ rde_update_dispatch(struct imsg *imsg)
ERR_UPD_ATTRLIST, NULL, 0);
return (-1);
}
+ if (withdrawn_len == 0) {
+ /* EoR marker */
+ peer_recv_eor(peer, AID_INET);
+ }
return (0);
}
@@ -892,15 +1088,30 @@ rde_update_dispatch(struct imsg *imsg)
afi = ntohs(afi);
safi = *mpp++;
mplen--;
- switch (afi) {
- case AFI_IPv6:
- if (peer->capa_received.mp_v6 == SAFI_NONE) {
- log_peer_warnx(&peer->conf, "bad AFI, "
- "IPv6 disabled");
- rde_update_err(peer, ERR_UPDATE,
- ERR_UPD_OPTATTR, NULL, 0);
- goto done;
- }
+
+ if (afi2aid(afi, safi, &aid) == -1) {
+ log_peer_warnx(&peer->conf,
+ "bad AFI/SAFI pair in withdraw");
+ rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
+ NULL, 0);
+ goto done;
+ }
+
+ if (peer->capa.mp[aid] == 0) {
+ log_peer_warnx(&peer->conf,
+ "bad withdraw, %s disabled", aid2str(aid));
+ rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
+ NULL, 0);
+ goto done;
+ }
+
+ if ((asp->flags & ~F_ATTR_MP_UNREACH) == 0 && mplen == 0) {
+ /* EoR marker */
+ peer_recv_eor(peer, aid);
+ }
+
+ switch (aid) {
+ case AID_INET6:
while (mplen > 0) {
if ((pos = rde_update_get_prefix6(mpp, mplen,
&prefix, &prefixlen)) == -1) {
@@ -926,6 +1137,32 @@ rde_update_dispatch(struct imsg *imsg)
rde_update_withdraw(peer, &prefix, prefixlen);
}
break;
+ case AID_VPN_IPv4:
+ while (mplen > 0) {
+ if ((pos = rde_update_get_vpn4(mpp, mplen,
+ &prefix, &prefixlen)) == -1) {
+ log_peer_warnx(&peer->conf,
+ "bad VPNv4 withdraw prefix");
+ rde_update_err(peer, ERR_UPDATE,
+ ERR_UPD_OPTATTR,
+ mpa.unreach, mpa.unreach_len);
+ goto done;
+ }
+ if (prefixlen > 32) {
+ log_peer_warnx(&peer->conf,
+ "bad VPNv4 withdraw prefix");
+ rde_update_err(peer, ERR_UPDATE,
+ ERR_UPD_OPTATTR,
+ mpa.unreach, mpa.unreach_len);
+ goto done;
+ }
+
+ mpp += pos;
+ mplen -= pos;
+
+ rde_update_withdraw(peer, &prefix, prefixlen);
+ }
+ break;
default:
/* silently ignore unsupported multiprotocol AF */
break;
@@ -963,9 +1200,9 @@ rde_update_dispatch(struct imsg *imsg)
p += pos;
nlri_len -= pos;
- if (peer->capa_received.mp_v4 == SAFI_NONE &&
- peer->capa_received.mp_v6 != SAFI_NONE) {
- log_peer_warnx(&peer->conf, "bad AFI, IPv4 disabled");
+ if (peer->capa.mp[AID_INET] == 0) {
+ log_peer_warnx(&peer->conf,
+ "bad update, %s disabled", aid2str(AID_INET));
rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
NULL, 0);
goto done;
@@ -995,6 +1232,22 @@ rde_update_dispatch(struct imsg *imsg)
safi = *mpp++;
mplen--;
+ if (afi2aid(afi, safi, &aid) == -1) {
+ log_peer_warnx(&peer->conf,
+ "bad AFI/SAFI pair in update");
+ rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
+ NULL, 0);
+ goto done;
+ }
+
+ if (peer->capa.mp[aid] == 0) {
+ log_peer_warnx(&peer->conf,
+ "bad update, %s disabled", aid2str(aid));
+ rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
+ NULL, 0);
+ goto done;
+ }
+
/*
* this works because asp is not linked.
* But first unlock the previously locked nexthop.
@@ -1004,8 +1257,8 @@ rde_update_dispatch(struct imsg *imsg)
(void)nexthop_delete(asp->nexthop);
asp->nexthop = NULL;
}
- if ((pos = rde_get_mp_nexthop(mpp, mplen, afi, asp)) == -1) {
- log_peer_warnx(&peer->conf, "bad IPv6 nlri prefix");
+ if ((pos = rde_get_mp_nexthop(mpp, mplen, aid, asp, peer)) == -1) {
+ log_peer_warnx(&peer->conf, "bad nlri prefix");
rde_update_err(peer, ERR_UPDATE, ERR_UPD_OPTATTR,
mpa.reach, mpa.reach_len);
goto done;
@@ -1013,16 +1266,8 @@ rde_update_dispatch(struct imsg *imsg)
mpp += pos;
mplen -= pos;
- switch (afi) {
- case AFI_IPv6:
- if (peer->capa_received.mp_v6 == SAFI_NONE) {
- log_peer_warnx(&peer->conf, "bad AFI, "
- "IPv6 disabled");
- rde_update_err(peer, ERR_UPDATE,
- ERR_UPD_OPTATTR, NULL, 0);
- goto done;
- }
-
+ switch (aid) {
+ case AID_INET6:
while (mplen > 0) {
if ((pos = rde_update_get_prefix6(mpp, mplen,
&prefix, &prefixlen)) == -1) {
@@ -1058,6 +1303,42 @@ rde_update_dispatch(struct imsg *imsg)
}
break;
+ case AID_VPN_IPv4:
+ while (mplen > 0) {
+ if ((pos = rde_update_get_vpn4(mpp, mplen,
+ &prefix, &prefixlen)) == -1) {
+ log_peer_warnx(&peer->conf,
+ "bad VPNv4 nlri prefix");
+ rde_update_err(peer, ERR_UPDATE,
+ ERR_UPD_OPTATTR,
+ mpa.reach, mpa.reach_len);
+ goto done;
+ }
+ if (prefixlen > 32) {
+ rde_update_err(peer, ERR_UPDATE,
+ ERR_UPD_OPTATTR,
+ mpa.reach, mpa.reach_len);
+ goto done;
+ }
+
+ mpp += pos;
+ mplen -= pos;
+
+ rde_update_update(peer, asp, &prefix,
+ prefixlen);
+
+ /* max prefix checker */
+ if (peer->conf.max_prefix &&
+ peer->prefix_cnt >= peer->conf.max_prefix) {
+ log_peer_warnx(&peer->conf,
+ "prefix limit reached");
+ rde_update_err(peer, ERR_CEASE,
+ ERR_CEASE_MAX_PREFIX, NULL, 0);
+ goto done;
+ }
+
+ }
+ break;
default:
/* silently ignore unsupported multiprotocol AF */
break;
@@ -1085,7 +1366,8 @@ rde_update_update(struct rde_peer *peer,
struct bgpd_addr *prefix, u_int8_t prefixlen)
{
struct rde_aspath *fasp;
- int r = 0;
+ enum filter_actions action;
+ int r = 0, f = 0;
u_int16_t i;
peer->prefix_rcvd_update++;
@@ -1095,18 +1377,24 @@ rde_update_update(struct rde_peer *peer,
for (i = 1; i < rib_size; i++) {
/* input filter */
- if (rde_filter(i, &fasp, rules_l, peer, asp, prefix, prefixlen,
- peer, DIR_IN) == ACTION_DENY)
- goto done;
+ action = rde_filter(i, &fasp, rules_l, peer, asp, prefix,
+ prefixlen, peer, DIR_IN);
if (fasp == NULL)
fasp = asp;
- rde_update_log("update", i, peer, &fasp->nexthop->exit_nexthop,
- prefix, prefixlen);
- r += path_update(&ribs[i], peer, fasp, prefix, prefixlen);
+ if (action == ACTION_ALLOW) {
+ rde_update_log("update", i, peer,
+ &fasp->nexthop->exit_nexthop, prefix, prefixlen);
+ r += path_update(&ribs[i], peer, fasp, prefix,
+ prefixlen);
+ } else if (prefix_remove(&ribs[i], peer, prefix, prefixlen,
+ 0)) {
+ rde_update_log("filtered withdraw", i, peer,
+ NULL, prefix, prefixlen);
+ f++;
+ }
-done:
/* free modified aspath */
if (fasp != asp)
path_put(fasp);
@@ -1114,6 +1402,8 @@ done:
if (r)
peer->prefix_cnt++;
+ else if (f)
+ peer->prefix_cnt--;
}
void
@@ -1152,7 +1442,7 @@ rde_update_withdraw(struct rde_peer *pee
} while (0)
#define CHECK_FLAGS(s, t, m) \
- (((s) & ~(ATTR_EXTLEN | (m))) == (t))
+ (((s) & ~(ATTR_DEFMASK | (m))) == (t))
int
rde_attr_parse(u_char *p, u_int16_t len, struct rde_peer *peer,
@@ -1161,6 +1451,7 @@ rde_attr_parse(u_char *p, u_int16_t len,
struct bgpd_addr nexthop;
u_char *op = p, *npath;
u_int32_t tmp32;
+ int err;
u_int16_t attr_len, nlen;
u_int16_t plen = 0;
u_int8_t flags;
@@ -1195,6 +1486,7 @@ bad_len:
switch (type) {
case ATTR_UNDEF:
/* ignore and drop path attributes with a type code of 0 */
+ plen += attr_len;
break;
case ATTR_ORIGIN:
if (attr_len != 1)
@@ -1220,7 +1512,17 @@ bad_flags:
case ATTR_ASPATH:
if (!CHECK_FLAGS(flags, ATTR_WELL_KNOWN, 0))
goto bad_flags;
- if (aspath_verify(p, attr_len, rde_as4byte(peer)) != 0) {
+ err = aspath_verify(p, attr_len, rde_as4byte(peer));
+ if (err == AS_ERR_SOFT) {
+ /*
+ * soft errors like unexpected segment types are
+ * not considered fatal and the path is just
+ * marked invalid.
+ */
+ a->flags |= F_ATTR_PARSE_ERR;
+ log_peer_warnx(&peer->conf, "bad ASPATH, "
+ "path invalidated and prefix withdrawn");
+ } else if (err != 0) {
rde_update_err(peer, ERR_UPDATE, ERR_UPD_ASPATH,
NULL, 0);
return (-1);
@@ -1248,7 +1550,7 @@ bad_flags:
a->flags |= F_ATTR_NEXTHOP;
bzero(&nexthop, sizeof(nexthop));
- nexthop.af = AF_INET;
+ nexthop.aid = AID_INET;
UPD_READ(&nexthop.v4.s_addr, p, plen, 4);
/*
* Check if the nexthop is a valid IP address. We consider
@@ -1305,9 +1607,21 @@ bad_flags:
goto optattr;
case ATTR_AGGREGATOR:
if ((!rde_as4byte(peer) && attr_len != 6) ||
- (rde_as4byte(peer) && attr_len != 8))
- goto bad_len;
- if (!CHECK_FLAGS(flags, ATTR_OPTIONAL|ATTR_TRANSITIVE, 0))
+ (rde_as4byte(peer) && attr_len != 8)) {
+ /*
+ * ignore attribute in case of error as per
+ * draft-ietf-idr-optional-transitive-00.txt
+ * but only if partial bit is set
+ */
+ if ((flags & ATTR_PARTIAL) == 0)
+ goto bad_len;
+ log_peer_warnx(&peer->conf, "bad AGGREGATOR, "
+ "partial attribute ignored");
+ plen += attr_len;
+ break;
+ }
+ if (!CHECK_FLAGS(flags, ATTR_OPTIONAL|ATTR_TRANSITIVE,
+ ATTR_PARTIAL))
goto bad_flags;
if (!rde_as4byte(peer)) {
/* need to inflate aggregator AS to 4-byte */
@@ -1323,8 +1637,35 @@ bad_flags:
/* 4-byte ready server take the default route */
goto optattr;
case ATTR_COMMUNITIES:
- if ((attr_len & 0x3) != 0)
- goto bad_len;
+ if (attr_len % 4 != 0) {
+ /*
+ * mark update as bad and withdraw all routes as per
+ * draft-ietf-idr-optional-transitive-00.txt
+ * but only if partial bit is set
+ */
+ if ((flags & ATTR_PARTIAL) == 0)
+ goto bad_len;
+ a->flags |= F_ATTR_PARSE_ERR;
+ log_peer_warnx(&peer->conf, "bad COMMUNITIES, "
+ "path invalidated and prefix withdrawn");
+ }
+ if (!CHECK_FLAGS(flags, ATTR_OPTIONAL|ATTR_TRANSITIVE,
+ ATTR_PARTIAL))
+ goto bad_flags;
+ goto optattr;
+ case ATTR_EXT_COMMUNITIES:
+ if (attr_len % 8 != 0) {
+ /*
+ * mark update as bad and withdraw all routes as per
+ * draft-ietf-idr-optional-transitive-00.txt
+ * but only if partial bit is set
+ */
+ if ((flags & ATTR_PARTIAL) == 0)
+ goto bad_len;
+ a->flags |= F_ATTR_PARSE_ERR;
+ log_peer_warnx(&peer->conf, "bad EXT_COMMUNITIES, "
+ "path invalidated and prefix withdrawn");
+ }
if (!CHECK_FLAGS(flags, ATTR_OPTIONAL|ATTR_TRANSITIVE,
ATTR_PARTIAL))
goto bad_flags;
@@ -1336,7 +1677,7 @@ bad_flags:
goto bad_flags;
goto optattr;
case ATTR_CLUSTER_LIST:
- if ((attr_len & 0x3) != 0)
+ if (attr_len % 4 != 0)
goto bad_len;
if (!CHECK_FLAGS(flags, ATTR_OPTIONAL, 0))
goto bad_flags;
@@ -1370,8 +1711,15 @@ bad_flags:
plen += attr_len;
break;
case ATTR_AS4_AGGREGATOR:
- if (attr_len != 8)
- goto bad_len;
+ if (attr_len != 8) {
+ /* see ATTR_AGGREGATOR ... */
+ if ((flags & ATTR_PARTIAL) == 0)
+ goto bad_len;
+ log_peer_warnx(&peer->conf, "bad AS4_AGGREGATOR, "
+ "partial attribute ignored");
+ plen += attr_len;
+ break;
+ }
if (!CHECK_FLAGS(flags, ATTR_OPTIONAL|ATTR_TRANSITIVE,
ATTR_PARTIAL))
goto bad_flags;
@@ -1381,20 +1729,31 @@ bad_flags:
if (!CHECK_FLAGS(flags, ATTR_OPTIONAL|ATTR_TRANSITIVE,
ATTR_PARTIAL))
goto bad_flags;
- if (aspath_verify(p, attr_len, 1) != 0) {
+ if ((err = aspath_verify(p, attr_len, 1)) != 0) {
/*
* XXX RFC does not specify how to handle errors.
* XXX Instead of dropping the session because of a
- * XXX bad path just mark the full update as not
- * XXX loop-free the update is no longer eligible and
- * XXX will not be considered for routing or
- * XXX redistribution. Something better is needed.
+ * XXX bad path just mark the full update as having
+ * XXX a parse error which makes the update no longer
+ * XXX eligible and will not be considered for routing
+ * XXX or redistribution.
+ * XXX We follow draft-ietf-idr-optional-transitive
+ * XXX by looking at the partial bit.
+ * XXX Consider soft errors similar to a partial attr.
*/
- a->flags |= F_ATTR_LOOP;
- goto optattr;
- }
- a->flags |= F_ATTR_AS4BYTE_NEW;
- goto optattr;
+ if (flags & ATTR_PARTIAL || err == AS_ERR_SOFT) {
+ a->flags |= F_ATTR_PARSE_ERR;
+ log_peer_warnx(&peer->conf, "bad AS4_PATH, "
+ "path invalidated and prefix withdrawn");
+ goto optattr;
+ } else {
+ rde_update_err(peer, ERR_UPDATE, ERR_UPD_ASPATH,
+ NULL, 0);
+ return (-1);
+ }
+ }
+ a->flags |= F_ATTR_AS4BYTE_NEW;
+ goto optattr;
default:
if ((flags & ATTR_OPTIONAL) == 0) {
rde_update_err(peer, ERR_UPDATE, ERR_UPD_UNKNWN_WK_ATTR,
@@ -1415,6 +1774,42 @@ bad_list:
return (plen);
}
+
+int
+rde_attr_add(struct rde_aspath *a, u_char *p, u_int16_t len)
+{
+ u_int16_t attr_len;
+ u_int16_t plen = 0;
+ u_int8_t flags;
+ u_int8_t type;
+ u_int8_t tmp8;
+
+ if (a == NULL) /* no aspath, nothing to do */
+ return (0);
+ if (len < 3)
+ return (-1);
+
+ UPD_READ(&flags, p, plen, 1);
+ UPD_READ(&type, p, plen, 1);
+
+ if (flags & ATTR_EXTLEN) {
+ if (len - plen < 2)
+ return (-1);
+ UPD_READ(&attr_len, p, plen, 2);
+ attr_len = ntohs(attr_len);
+ } else {
+ UPD_READ(&tmp8, p, plen, 1);
+ attr_len = tmp8;
+ }
+
+ if (len - plen < attr_len)
+ return (-1);
+
+ if (attr_optadd(a, flags, type, p, attr_len) == -1)
+ return (-1);
+ return (0);
+}
+
#undef UPD_READ
#undef CHECK_FLAGS
@@ -1440,8 +1835,8 @@ rde_attr_missing(struct rde_aspath *a, i
}
int
-rde_get_mp_nexthop(u_char *data, u_int16_t len, u_int16_t afi,
- struct rde_aspath *asp)
+rde_get_mp_nexthop(u_char *data, u_int16_t len, u_int8_t aid,
+ struct rde_aspath *asp, struct rde_peer *peer)
{
struct bgpd_addr nexthop;
u_int8_t totlen, nhlen;
@@ -1457,8 +1852,9 @@ rde_get_mp_nexthop(u_char *data, u_int16
return (-1);
bzero(&nexthop, sizeof(nexthop));
- switch (afi) {
- case AFI_IPv6:
+ nexthop.aid = aid;
+ switch (aid) {
+ case AID_INET6:
/*
* RFC2545 describes that there may be a link-local
* address carried in nexthop. Yikes!
@@ -1471,72 +1867,144 @@ rde_get_mp_nexthop(u_char *data, u_int16
log_warnx("bad multiprotocol nexthop, bad size");
return (-1);
}
- nexthop.af = AF_INET6;
memcpy(&nexthop.v6.s6_addr, data, 16);
- asp->nexthop = nexthop_get(&nexthop);
+#if defined(__KAME__) && defined(IPV6_LINKLOCAL_PEER)
+ if (IN6_IS_ADDR_LINKLOCAL(&nexthop.v6) &&
+ peer->conf.lliface[0]) {
+ int ifindex;
+
+ ifindex = if_nametoindex(peer->conf.lliface);
+ if (ifindex != 0) {
+ SET_IN6_LINKLOCAL_IFINDEX(nexthop.v6, ifindex);
+ nexthop.scope_id = ifindex;
+ } else
+ log_warnx("bad interface: %s", peer->conf.lliface);
+ }
+#endif
+ break;
+ case AID_VPN_IPv4:
/*
- * lock the nexthop because it is not yet linked else
- * withdraws may remove this nexthop which in turn would
- * cause a use after free error.
+ * Neither RFC4364 nor RFC3107 specify the format of the
+ * nexthop in an explicit way. The quality of RFC went down
+ * the toilet the larger the number got.
+ * RFC4364 is very confusing about VPN-IPv4 address and the
+ * VPN-IPv4 prefix that carries also a MPLS label.
+ * So the nexthop is a 12-byte address with a 64bit RD and
+ * an IPv4 address following. In the nexthop case the RD can
+ * be ignored.
+ * Since the nexthop has to be in the main IPv4 table just
+ * create an AID_INET nexthop. So we don't need to handle
+ * AID_VPN_IPv4 in nexthop and kroute.
*/
- asp->nexthop->refcnt++;
-
- /* ignore reserved (old SNPA) field as per RFC 4760 */
- totlen += nhlen + 1;
- data += nhlen + 1;
-
- return (totlen);
- default:
- log_warnx("bad multiprotocol nexthop, bad AF");
+ if (nhlen != 12) {
+ log_warnx("bad multiprotocol nexthop, bad size");
+ return (-1);
+ }
+ data += sizeof(u_int64_t);
+ nexthop.aid = AID_INET;
+ memcpy(&nexthop.v4, data, sizeof(nexthop.v4));
break;
+ default:
+ log_warnx("bad multiprotocol nexthop, bad AID");
+ return (-1);
}
- return (-1);
+ asp->nexthop = nexthop_get(&nexthop);
+ /*
+ * lock the nexthop because it is not yet linked else
+ * withdraws may remove this nexthop which in turn would
+ * cause a use after free error.
+ */
+ asp->nexthop->refcnt++;
+
+ /* ignore reserved (old SNPA) field as per RFC4760 */
+ totlen += nhlen + 1;
+ data += nhlen + 1;
+
+ return (totlen);
+}
+
+int
+rde_update_extract_prefix(u_char *p, u_int16_t len, void *va,
+ u_int8_t pfxlen, u_int8_t max)
+{
+ static u_char addrmask[] = {
+ 0x00, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe, 0xff };
+ u_char *a = va;
+ int i;
+ u_int16_t plen = 0;
+
+ for (i = 0; pfxlen && i < max; i++) {
+ if (len <= plen)
+ return (-1);
+ if (pfxlen < 8) {
+ a[i] = *p++ & addrmask[pfxlen];
+ plen++;
+ break;
+ } else {
+ a[i] = *p++;
+ plen++;
+ pfxlen -= 8;
+ }
+ }
+ return (plen);
}
int
rde_update_get_prefix(u_char *p, u_int16_t len, struct bgpd_addr *prefix,
u_int8_t *prefixlen)
{
- int i;
- u_int8_t pfxlen;
- u_int16_t plen;
- union {
- struct in_addr a32;
- u_int8_t a8[4];
- } addr;
+ u_int8_t pfxlen;
+ int plen;
if (len < 1)
return (-1);
- memcpy(&pfxlen, p, 1);
- p += 1;
- plen = 1;
+ pfxlen = *p++;
+ len--;
bzero(prefix, sizeof(struct bgpd_addr));
- addr.a32.s_addr = 0;
- for (i = 0; i <= 3; i++) {
- if (pfxlen > i * 8) {
- if (len - plen < 1)
- return (-1);
- memcpy(&addr.a8[i], p++, 1);
- plen++;
- }
- }
- prefix->af = AF_INET;
- prefix->v4.s_addr = addr.a32.s_addr;
+ prefix->aid = AID_INET;
*prefixlen = pfxlen;
- return (plen);
+ if ((plen = rde_update_extract_prefix(p, len, &prefix->v4, pfxlen,
+ sizeof(prefix->v4))) == -1)
+ return (-1);
+
+ return (plen + 1); /* pfxlen needs to be added */
}
int
rde_update_get_prefix6(u_char *p, u_int16_t len, struct bgpd_addr *prefix,
u_int8_t *prefixlen)
{
- int i;
+ int plen;
u_int8_t pfxlen;
- u_int16_t plen;
+
+ if (len < 1)
+ return (-1);
+
+ pfxlen = *p++;
+ len--;
+
+ bzero(prefix, sizeof(struct bgpd_addr));
+ prefix->aid = AID_INET6;
+ *prefixlen = pfxlen;
+
+ if ((plen = rde_update_extract_prefix(p, len, &prefix->v6, pfxlen,
+ sizeof(prefix->v6))) == -1)
+ return (-1);
+
+ return (plen + 1); /* pfxlen needs to be added */
+}
+
+int
+rde_update_get_vpn4(u_char *p, u_int16_t len, struct bgpd_addr *prefix,
+ u_int8_t *prefixlen)
+{
+ int rv, done = 0;
+ u_int8_t pfxlen;
+ u_int16_t plen;
if (len < 1)
return (-1);
@@ -1546,25 +2014,50 @@ rde_update_get_prefix6(u_char *p, u_int1
plen = 1;
bzero(prefix, sizeof(struct bgpd_addr));
- for (i = 0; i <= 15; i++) {
- if (pfxlen > i * 8) {
- if (len - plen < 1)
- return (-1);
- memcpy(&prefix->v6.s6_addr[i], p++, 1);
- plen++;
- }
- }
- prefix->af = AF_INET6;
+
+ /* label stack */
+ do {
+ if (len - plen < 3 || pfxlen < 3 * 8)
+ return (-1);
+ if (prefix->vpn4.labellen + 3U >
+ sizeof(prefix->vpn4.labelstack))
+ return (-1);
+ prefix->vpn4.labelstack[prefix->vpn4.labellen++] = *p++;
+ prefix->vpn4.labelstack[prefix->vpn4.labellen++] = *p++;
+ prefix->vpn4.labelstack[prefix->vpn4.labellen] = *p++;
+ if (prefix->vpn4.labelstack[prefix->vpn4.labellen] &
+ BGP_MPLS_BOS)
+ done = 1;
+ prefix->vpn4.labellen++;
+ plen += 3;
+ pfxlen -= 3 * 8;
+ } while (!done);
+
+ /* RD */
+ if (len - plen < (int)sizeof(u_int64_t) ||
+ pfxlen < sizeof(u_int64_t) * 8)
+ return (-1);
+ memcpy(&prefix->vpn4.rd, p, sizeof(u_int64_t));
+ pfxlen -= sizeof(u_int64_t) * 8;
+ p += sizeof(u_int64_t);
+ plen += sizeof(u_int64_t);
+
+ /* prefix */
+ prefix->aid = AID_VPN_IPv4;
*prefixlen = pfxlen;
- return (plen);
+ if ((rv = rde_update_extract_prefix(p, len, &prefix->vpn4.addr,
+ pfxlen, sizeof(prefix->vpn4.addr))) == -1)
+ return (-1);
+
+ return (plen + rv);
}
void
rde_update_err(struct rde_peer *peer, u_int8_t error, u_int8_t suberr,
void *data, u_int16_t size)
{
- struct buf *wbuf;
+ struct ibuf *wbuf;
if ((wbuf = imsg_create(ibuf_se, IMSG_UPDATE_ERR, peer->conf.id, 0,
size + sizeof(error) + sizeof(suberr))) == NULL)
@@ -1616,16 +2109,30 @@ rde_as4byte_fixup(struct rde_peer *peer,
struct attr *nasp, *naggr, *oaggr;
u_int32_t as;
+ /*
+ * if either ATTR_AS4_AGGREGATOR or ATTR_AS4_PATH is present
+ * try to fixup the attributes.
+ * Do not fixup if F_ATTR_PARSE_ERR is set.
+ */
+ if (!(a->flags & F_ATTR_AS4BYTE_NEW) || a->flags & F_ATTR_PARSE_ERR)
+ return;
+
/* first get the attributes */
nasp = attr_optget(a, ATTR_AS4_PATH);
naggr = attr_optget(a, ATTR_AS4_AGGREGATOR);
if (rde_as4byte(peer)) {
/* NEW session using 4-byte ASNs */
- if (nasp)
+ if (nasp) {
+ log_peer_warnx(&peer->conf, "uses 4-byte ASN "
+ "but sent AS4_PATH attribute.");
attr_free(a, nasp);
- if (naggr)
+ }
+ if (naggr) {
+ log_peer_warnx(&peer->conf, "uses 4-byte ASN "
+ "but sent AS4_AGGREGATOR attribute.");
attr_free(a, naggr);
+ }
return;
}
/* OLD session using 2-byte ASNs */
@@ -1669,6 +2176,10 @@ rde_reflector(struct rde_peer *peer, str
u_int16_t len;
u_int32_t id;
+ /* do not consider updates with parse errors */
+ if (asp->flags & F_ATTR_PARSE_ERR)
+ return;
+
/* check for originator id if eq router_id drop */
if ((a = attr_optget(asp, ATTR_ORIGINATOR_ID)) != NULL) {
if (memcmp(&conf->bgpid, a->data, sizeof(conf->bgpid)) == 0) {
@@ -1677,10 +2188,10 @@ rde_reflector(struct rde_peer *peer, str
return;
}
} else if (conf->flags & BGPD_FLAG_REFLECTOR) {
- if (peer->conf.ebgp == 0)
- id = htonl(peer->remote_bgpid);
- else
+ if (peer->conf.ebgp)
id = conf->bgpid;
+ else
+ id = htonl(peer->remote_bgpid);
if (attr_optadd(asp, ATTR_OPTIONAL, ATTR_ORIGINATOR_ID,
&id, sizeof(u_int32_t)) == -1)
fatalx("attr_optadd failed but impossible");
@@ -1724,17 +2235,17 @@ void
rde_dump_rib_as(struct prefix *p, struct rde_aspath *asp, pid_t pid, int flags)
{
struct ctl_show_rib rib;
- struct buf *wbuf;
+ struct ibuf *wbuf;
struct attr *a;
void *bp;
+ time_t staletime;
u_int8_t l;
bzero(&rib, sizeof(rib));
rib.lastchange = p->lastchange;
rib.local_pref = asp->lpref;
rib.med = asp->med;
- rib.prefix_cnt = asp->prefix_cnt;
- rib.active_cnt = asp->active_cnt;
+ rib.weight = asp->weight;
strlcpy(rib.descr, asp->peer->conf.descr, sizeof(rib.descr));
memcpy(&rib.remote_addr, &asp->peer->remote_addr,
sizeof(rib.remote_addr));
@@ -1748,23 +2259,26 @@ rde_dump_rib_as(struct prefix *p, struct
/* announced network may have a NULL nexthop */
bzero(&rib.true_nexthop, sizeof(rib.true_nexthop));
bzero(&rib.exit_nexthop, sizeof(rib.exit_nexthop));
- rib.true_nexthop.af = p->prefix->af;
- rib.exit_nexthop.af = p->prefix->af;
+ rib.true_nexthop.aid = p->prefix->aid;
+ rib.exit_nexthop.aid = p->prefix->aid;
}
pt_getaddr(p->prefix, &rib.prefix);
rib.prefixlen = p->prefix->prefixlen;
rib.origin = asp->origin;
rib.flags = 0;
if (p->rib->active == p)
- rib.flags |= F_RIB_ACTIVE;
- if (asp->peer->conf.ebgp == 0)
- rib.flags |= F_RIB_INTERNAL;
+ rib.flags |= F_PREF_ACTIVE;
+ if (!asp->peer->conf.ebgp)
+ rib.flags |= F_PREF_INTERNAL;
if (asp->flags & F_PREFIX_ANNOUNCED)
- rib.flags |= F_RIB_ANNOUNCE;
+ rib.flags |= F_PREF_ANNOUNCE;
if (asp->nexthop == NULL || asp->nexthop->state == NEXTHOP_REACH)
- rib.flags |= F_RIB_ELIGIBLE;
+ rib.flags |= F_PREF_ELIGIBLE;
if (asp->flags & F_ATTR_LOOP)
- rib.flags &= ~F_RIB_ELIGIBLE;
+ rib.flags &= ~F_PREF_ELIGIBLE;
+ staletime = asp->peer->staletime[p->prefix->aid];
+ if (staletime && p->lastchange <= staletime)
+ rib.flags |= F_PREF_STALE;
rib.aspath_len = aspath_length(asp->aspath);
if ((wbuf = imsg_create(ibuf_se_ctl, IMSG_CTL_SHOW_RIB, 0, pid,
@@ -1784,13 +2298,13 @@ rde_dump_rib_as(struct prefix *p, struct
IMSG_CTL_SHOW_RIB_ATTR, 0, pid,
attr_optlen(a))) == NULL)
return;
- if ((bp = buf_reserve(wbuf, attr_optlen(a))) == NULL) {
- buf_free(wbuf);
+ if ((bp = ibuf_reserve(wbuf, attr_optlen(a))) == NULL) {
+ ibuf_free(wbuf);
return;
}
if (attr_write(bp, attr_optlen(a), a->flags,
a->type, a->data, a->len) == -1) {
- buf_free(wbuf);
+ ibuf_free(wbuf);
return;
}
imsg_close(ibuf_se_ctl, wbuf);
@@ -1828,17 +2342,20 @@ rde_dump_filter(struct prefix *p, struct
{
struct rde_peer *peer;
- if (req->flags & F_CTL_ADJ_IN ||
+ if (req->flags & F_CTL_ADJ_IN ||
!(req->flags & (F_CTL_ADJ_IN|F_CTL_ADJ_OUT))) {
if (req->peerid && req->peerid != p->aspath->peer->conf.id)
return;
- if (req->type == IMSG_CTL_SHOW_RIB_AS &&
- !aspath_match(p->aspath->aspath, req->as.type, req->as.as))
+ if (req->type == IMSG_CTL_SHOW_RIB_AS &&
+ !aspath_match(p->aspath->aspath->data,
+ p->aspath->aspath->len, req->as.type, req->as.as))
return;
if (req->type == IMSG_CTL_SHOW_RIB_COMMUNITY &&
- !rde_filter_community(p->aspath, req->community.as,
+ !community_match(p->aspath, req->community.as,
req->community.type))
return;
+ if ((req->flags & F_CTL_ACTIVE) && p->rib->active != p)
+ return;
rde_dump_rib_as(p, p->aspath, req->pid, req->flags);
} else if (req->flags & F_CTL_ADJ_OUT) {
if (p->rib->active != p)
@@ -1872,7 +2389,7 @@ rde_dump_prefix_upcall(struct rib_entry
pt = re->prefix;
pt_getaddr(pt, &addr);
- if (addr.af != ctx->req.prefix.af)
+ if (addr.aid != ctx->req.prefix.aid)
return;
if (ctx->req.prefixlen > pt->prefixlen)
return;
@@ -1889,6 +2406,7 @@ rde_dump_ctx_new(struct ctl_show_rib_req
struct rib_entry *re;
u_int error;
u_int16_t id;
+ u_int8_t hostplen = 0;
if ((ctx = calloc(1, sizeof(*ctx))) == NULL) {
log_warn("rde_dump_ctx_new");
@@ -1902,6 +2420,7 @@ rde_dump_ctx_new(struct ctl_show_rib_req
error = CTL_RES_NOSUCHPEER;
imsg_compose(ibuf_se_ctl, IMSG_CTL_RESULT, 0, pid, -1, &error,
sizeof(error));
+ free(ctx);
return;
}
@@ -1924,7 +2443,18 @@ rde_dump_ctx_new(struct ctl_show_rib_req
ctx->ribctx.ctx_upcall = rde_dump_prefix_upcall;
break;
}
- if (req->prefixlen == 32)
+ switch (req->prefix.aid) {
+ case AID_INET:
+ case AID_VPN_IPv4:
+ hostplen = 32;
+ break;
+ case AID_INET6:
+ hostplen = 128;
+ break;
+ default:
+ fatalx("rde_dump_ctx_new: unknown af");
+ }
+ if (req->prefixlen == hostplen)
re = rib_lookup(&ribs[id], &req->prefix);
else
re = rib_get(&ribs[id], &req->prefix, req->prefixlen);
@@ -1937,7 +2467,7 @@ rde_dump_ctx_new(struct ctl_show_rib_req
}
ctx->ribctx.ctx_done = rde_dump_done;
ctx->ribctx.ctx_arg = ctx;
- ctx->ribctx.ctx_af = ctx->req.af;
+ ctx->ribctx.ctx_aid = ctx->req.aid;
rib_dump_r(&ctx->ribctx);
}
@@ -1971,13 +2501,17 @@ rde_dump_mrt_new(struct mrt *mrt, pid_t
free(ctx);
return;
}
+
+ if (ctx->mrt.type == MRT_TABLE_DUMP_V2)
+ mrt_dump_v2_hdr(&ctx->mrt, conf, &peerlist);
+
ctx->ribctx.ctx_count = RDE_RUNNER_ROUNDS;
ctx->ribctx.ctx_rib = &ribs[id];
ctx->ribctx.ctx_upcall = mrt_dump_upcall;
- ctx->ribctx.ctx_done = mrt_dump_done;
+ ctx->ribctx.ctx_done = mrt_done;
ctx->ribctx.ctx_arg = &ctx->mrt;
- ctx->ribctx.ctx_af = AF_UNSPEC;
- LIST_INSERT_HEAD(&rde_mrts, &ctx->mrt, entry);
+ ctx->ribctx.ctx_aid = AID_UNSPEC;
+ LIST_INSERT_HEAD(&rde_mrts, ctx, entry);
rde_mrt_cnt++;
rib_dump_r(&ctx->ribctx);
}
@@ -1985,13 +2519,25 @@ rde_dump_mrt_new(struct mrt *mrt, pid_t
/*
* kroute specific functions
*/
+int
+rde_rdomain_import(struct rde_aspath *asp, struct rdomain *rd)
+{
+ struct filter_set *s;
+
+ TAILQ_FOREACH(s, &rd->import, entry) {
+ if (community_ext_match(asp, &s->action.ext_community, 0))
+ return (1);
+ }
+ return (0);
+}
+
void
-rde_send_kroute(struct prefix *new, struct prefix *old)
+rde_send_kroute(struct prefix *new, struct prefix *old, u_int16_t ribid)
{
- struct kroute_label kl;
- struct kroute6_label kl6;
+ struct kroute_full kr;
struct bgpd_addr addr;
struct prefix *p;
+ struct rdomain *rd;
enum imsg_type type;
/*
@@ -2011,43 +2557,43 @@ rde_send_kroute(struct prefix *new, stru
}
pt_getaddr(p->prefix, &addr);
- switch (addr.af) {
- case AF_INET:
- bzero(&kl, sizeof(kl));
- kl.kr.prefix.s_addr = addr.v4.s_addr;
- kl.kr.prefixlen = p->prefix->prefixlen;
- if (p->aspath->flags & F_NEXTHOP_REJECT)
- kl.kr.flags |= F_REJECT;
- if (p->aspath->flags & F_NEXTHOP_BLACKHOLE)
- kl.kr.flags |= F_BLACKHOLE;
- if (type == IMSG_KROUTE_CHANGE)
- kl.kr.nexthop.s_addr =
- p->aspath->nexthop->true_nexthop.v4.s_addr;
- strlcpy(kl.label, rtlabel_id2name(p->aspath->rtlabelid),
- sizeof(kl.label));
- if (imsg_compose(ibuf_main, type, 0, 0, -1, &kl,
- sizeof(kl)) == -1)
- fatal("imsg_compose error");
+ bzero(&kr, sizeof(kr));
+ memcpy(&kr.prefix, &addr, sizeof(kr.prefix));
+ kr.prefixlen = p->prefix->prefixlen;
+ if (p->aspath->flags & F_NEXTHOP_REJECT)
+ kr.flags |= F_REJECT;
+ if (p->aspath->flags & F_NEXTHOP_BLACKHOLE)
+ kr.flags |= F_BLACKHOLE;
+ if (type == IMSG_KROUTE_CHANGE)
+ memcpy(&kr.nexthop, &p->aspath->nexthop->true_nexthop,
+ sizeof(kr.nexthop));
+ strlcpy(kr.label, rtlabel_id2name(p->aspath->rtlabelid),
+ sizeof(kr.label));
+
+ switch (addr.aid) {
+ case AID_VPN_IPv4:
+ if (ribid != 1)
+ /* not Loc-RIB, no update for VPNs */
+ break;
+
+ SIMPLEQ_FOREACH(rd, rdomains_l, entry) {
+ if (!rde_rdomain_import(p->aspath, rd))
+ continue;
+ /* must send exit_nexthop so that correct MPLS tunnel
+ * is chosen
+ */
+ if (type == IMSG_KROUTE_CHANGE)
+ memcpy(&kr.nexthop,
+ &p->aspath->nexthop->exit_nexthop,
+ sizeof(kr.nexthop));
+ if (imsg_compose(ibuf_main, type, rd->rtableid, 0, -1,
+ &kr, sizeof(kr)) == -1)
+ fatal("imsg_compose error");
+ }
break;
- case AF_INET6:
- bzero(&kl6, sizeof(kl6));
- memcpy(&kl6.kr.prefix, &addr.v6, sizeof(struct in6_addr));
- kl6.kr.prefixlen = p->prefix->prefixlen;
- if (p->aspath->flags & F_NEXTHOP_REJECT)
- kl6.kr.flags |= F_REJECT;
- if (p->aspath->flags & F_NEXTHOP_BLACKHOLE)
- kl6.kr.flags |= F_BLACKHOLE;
- if (type == IMSG_KROUTE_CHANGE) {
- type = IMSG_KROUTE6_CHANGE;
- memcpy(&kl6.kr.nexthop,
- &p->aspath->nexthop->true_nexthop.v6,
- sizeof(struct in6_addr));
- } else
- type = IMSG_KROUTE6_DELETE;
- strlcpy(kl6.label, rtlabel_id2name(p->aspath->rtlabelid),
- sizeof(kl6.label));
- if (imsg_compose(ibuf_main, type, 0, 0, -1, &kl6,
- sizeof(kl6)) == -1)
+ default:
+ if (imsg_compose(ibuf_main, type, ribs[ribid].rtableid, 0, -1,
+ &kr, sizeof(kr)) == -1)
fatal("imsg_compose error");
break;
}
@@ -2098,7 +2644,6 @@ rde_send_pftable_commit(void)
void
rde_send_nexthop(struct bgpd_addr *next, int valid)
{
- size_t size;
int type;
if (valid)
@@ -2106,8 +2651,6 @@ rde_send_nexthop(struct bgpd_addr *next,
else
type = IMSG_NEXTHOP_REMOVE;
- size = sizeof(struct bgpd_addr);
-
if (imsg_compose(ibuf_main, type, 0, 0, -1, next,
sizeof(struct bgpd_addr)) == -1)
fatal("imsg_compose error");
@@ -2201,6 +2744,10 @@ rde_softreconfig_in(struct rib_entry *re
continue;
for (i = 1; i < rib_size; i++) {
+ /* only active ribs need a softreconfig rerun */
+ if (ribs[i].state != RECONF_KEEP)
+ continue;
+
/* check if prefix changed */
oa = rde_filter(i, &oasp, rules_l, peer, asp, &addr,
pt->prefixlen, peer, DIR_IN);
@@ -2228,7 +2775,7 @@ rde_softreconfig_in(struct rib_entry *re
if (path_compare(nasp, oasp) == 0)
goto done;
/* send update */
- path_update(&ribs[1], peer, nasp, &addr,
+ path_update(&ribs[i], peer, nasp, &addr,
pt->prefixlen);
}
@@ -2241,6 +2788,104 @@ done:
}
}
+void
+rde_softreconfig_load(struct rib_entry *re, void *ptr)
+{
+ struct rib *rib = ptr;
+ struct prefix *p, *np;
+ struct pt_entry *pt;
+ struct rde_peer *peer;
+ struct rde_aspath *asp, *nasp;
+ enum filter_actions action;
+ struct bgpd_addr addr;
+
+ pt = re->prefix;
+ pt_getaddr(pt, &addr);
+ for (p = LIST_FIRST(&re->prefix_h); p != NULL; p = np) {
+ np = LIST_NEXT(p, rib_l);
+
+ /* store aspath as prefix may change till we're done */
+ asp = p->aspath;
+ peer = asp->peer;
+
+ action = rde_filter(rib->id, &nasp, newrules, peer, asp, &addr,
+ pt->prefixlen, peer, DIR_IN);
+ nasp = nasp != NULL ? nasp : asp;
+
+ if (action == ACTION_ALLOW) {
+ /* update Local-RIB */
+ path_update(rib, peer, nasp, &addr, pt->prefixlen);
+ }
+
+ if (nasp != asp)
+ path_put(nasp);
+ }
+}
+
+void
+rde_softreconfig_load_peer(struct rib_entry *re, void *ptr)
+{
+ struct rde_peer *peer = ptr;
+ struct prefix *p = re->active;
+ struct pt_entry *pt;
+ struct rde_aspath *nasp;
+ enum filter_actions na;
+ struct bgpd_addr addr;
+
+ pt = re->prefix;
+ pt_getaddr(pt, &addr);
+
+ /* check if prefix was announced */
+ if (up_test_update(peer, p) != 1)
+ return;
+
+ na = rde_filter(re->ribid, &nasp, newrules, peer, p->aspath,
+ &addr, pt->prefixlen, p->aspath->peer, DIR_OUT);
+ nasp = nasp != NULL ? nasp : p->aspath;
+
+ if (na == ACTION_DENY)
+ /* nothing todo */
+ goto done;
+
+ /* send update */
+ up_generate(peer, nasp, &addr, pt->prefixlen);
+done:
+ if (nasp != p->aspath)
+ path_put(nasp);
+}
+
+void
+rde_softreconfig_unload_peer(struct rib_entry *re, void *ptr)
+{
+ struct rde_peer *peer = ptr;
+ struct prefix *p = re->active;
+ struct pt_entry *pt;
+ struct rde_aspath *oasp;
+ enum filter_actions oa;
+ struct bgpd_addr addr;
+
+ pt = re->prefix;
+ pt_getaddr(pt, &addr);
+
+ /* check if prefix was announced */
+ if (up_test_update(peer, p) != 1)
+ return;
+
+ oa = rde_filter(re->ribid, &oasp, rules_l, peer, p->aspath,
+ &addr, pt->prefixlen, p->aspath->peer, DIR_OUT);
+ oasp = oasp != NULL ? oasp : p->aspath;
+
+ if (oa == ACTION_DENY)
+ /* nothing todo */
+ goto done;
+
+ /* send withdraw */
+ up_generate(peer, NULL, &addr, pt->prefixlen);
+done:
+ if (oasp != p->aspath)
+ path_put(oasp);
+}
+
/*
* update specific functions
*/
@@ -2252,7 +2897,7 @@ rde_up_dump_upcall(struct rib_entry *re,
struct rde_peer *peer = ptr;
if (re->ribid != peer->ribid)
- fatalx("King Bula: monsterous evil horror.");
+ fatalx("King Bula: monstrous evil horror.");
if (re->active == NULL)
return;
up_generate_updates(rules_l, peer, re->active, NULL);
@@ -2265,7 +2910,7 @@ rde_generate_updates(u_int16_t ribid, st
/*
* If old is != NULL we know it was active and should be removed.
- * If new is != NULL we know it is reachable and then we should
+ * If new is != NULL we know it is reachable and then we should
* generate an update.
*/
if (old == NULL && new == NULL)
@@ -2286,7 +2931,7 @@ void
rde_update_queue_runner(void)
{
struct rde_peer *peer;
- int r, sent, max = RDE_RUNNER_ROUNDS;
+ int r, sent, max = RDE_RUNNER_ROUNDS, eor = 0;
u_int16_t len, wd_len, wpos;
len = sizeof(queue_buf) - MSGSIZE_HEADER;
@@ -2300,7 +2945,7 @@ rde_update_queue_runner(void)
/* first withdraws */
wpos = 2; /* reserve space for the length field */
r = up_dump_prefix(queue_buf + wpos, len - wpos - 2,
- &peer->withdraws, peer);
+ &peer->withdraws[AID_INET], peer);
wd_len = r;
/* write withdraws length filed */
wd_len = htons(wd_len);
@@ -2310,31 +2955,49 @@ rde_update_queue_runner(void)
/* now bgp path attributes */
r = up_dump_attrnlri(queue_buf + wpos, len - wpos,
peer);
- wpos += r;
-
- if (wpos == 4)
- /*
- * No packet to send. The 4 bytes are the
- * needed withdraw and path attribute length.
- */
- continue;
+ switch (r) {
+ case -1:
+ eor = 1;
+ if (wd_len == 0) {
+ /* no withdraws queued just send EoR */
+ peer_send_eor(peer, AID_INET);
+ continue;
+ }
+ break;
+ case 2:
+ if (wd_len == 0) {
+ /*
+ * No packet to send. No withdraws and
+ * no path attributes. Skip.
+ */
+ continue;
+ }
+ /* FALLTHROUGH */
+ default:
+ wpos += r;
+ break;
+ }
/* finally send message to SE */
if (imsg_compose(ibuf_se, IMSG_UPDATE, peer->conf.id,
0, -1, queue_buf, wpos) == -1)
fatal("imsg_compose error");
sent++;
+ if (eor) {
+ eor = 0;
+ peer_send_eor(peer, AID_INET);
+ }
}
max -= sent;
} while (sent != 0 && max > 0);
}
void
-rde_update6_queue_runner(void)
+rde_update6_queue_runner(u_int8_t aid)
{
struct rde_peer *peer;
u_char *b;
- int sent, max = RDE_RUNNER_ROUNDS / 2;
+ int r, sent, max = RDE_RUNNER_ROUNDS / 2;
u_int16_t len;
/* first withdraws ... */
@@ -2346,7 +3009,7 @@ rde_update6_queue_runner(void)
if (peer->state != PEER_UP)
continue;
len = sizeof(queue_buf) - MSGSIZE_HEADER;
- b = up_dump_mp_unreach(queue_buf, &len, peer);
+ b = up_dump_mp_unreach(queue_buf, &len, peer, aid);
if (b == NULL)
continue;
@@ -2369,10 +3032,18 @@ rde_update6_queue_runner(void)
if (peer->state != PEER_UP)
continue;
len = sizeof(queue_buf) - MSGSIZE_HEADER;
- b = up_dump_mp_reach(queue_buf, &len, peer);
-
- if (b == NULL)
+ r = up_dump_mp_reach(queue_buf, &len, peer, aid);
+ switch (r) {
+ case -2:
+ continue;
+ case -1:
+ peer_send_eor(peer, aid);
continue;
+ default:
+ b = queue_buf + r;
+ break;
+ }
+
/* finally send message to SE */
if (imsg_compose(ibuf_se, IMSG_UPDATE, peer->conf.id,
0, -1, b, len) == -1)
@@ -2411,7 +3082,7 @@ rde_decisionflags(void)
int
rde_as4byte(struct rde_peer *peer)
{
- return (peer->capa_announced.as4byte && peer->capa_received.as4byte);
+ return (peer->capa.as4byte);
}
/*
@@ -2429,7 +3100,6 @@ void
peer_init(u_int32_t hashsize)
{
struct peer_config pc;
- struct in_addr id;
u_int32_t hs, i;
for (hs = 1; hs < hashsize; hs <<= 1)
@@ -2445,17 +3115,13 @@ peer_init(u_int32_t hashsize)
peertable.peer_hashmask = hs - 1;
bzero(&pc, sizeof(pc));
- pc.remote_as = conf->as;
- id.s_addr = conf->bgpid;
- snprintf(pc.descr, sizeof(pc.descr), "LOCAL: ID %s", inet_ntoa(id));
+ snprintf(pc.descr, sizeof(pc.descr), "LOCAL");
peerself = peer_add(0, &pc);
if (peerself == NULL)
fatalx("peer_init add self");
peerself->state = PEER_UP;
- peerself->remote_bgpid = ntohl(conf->bgpid);
- peerself->short_as = conf->short_as;
}
void
@@ -2534,14 +3200,10 @@ peer_localaddrs(struct rde_peer *peer, s
if (ifa->ifa_addr->sa_family ==
match->ifa_addr->sa_family)
ifa = match;
- peer->local_v4_addr.af = AF_INET;
- peer->local_v4_addr.v4.s_addr =
- ((struct sockaddr_in *)ifa->ifa_addr)->
- sin_addr.s_addr;
+ sa2addr(ifa->ifa_addr, &peer->local_v4_addr);
break;
}
}
-
for (ifa = ifap; ifa != NULL; ifa = ifa->ifa_next) {
if (ifa->ifa_addr->sa_family == AF_INET6 &&
strcmp(ifa->ifa_name, match->ifa_name) == 0) {
@@ -2559,13 +3221,7 @@ peer_localaddrs(struct rde_peer *peer, s
&((struct sockaddr_in6 *)ifa->
ifa_addr)->sin6_addr))
continue;
- peer->local_v6_addr.af = AF_INET6;
- memcpy(&peer->local_v6_addr.v6,
- &((struct sockaddr_in6 *)ifa->ifa_addr)->
- sin6_addr, sizeof(struct in6_addr));
- peer->local_v6_addr.scope_id =
- ((struct sockaddr_in6 *)ifa->ifa_addr)->
- sin6_scope_id;
+ sa2addr(ifa->ifa_addr, &peer->local_v6_addr);
break;
}
}
@@ -2577,23 +3233,22 @@ void
peer_up(u_int32_t id, struct session_up *sup)
{
struct rde_peer *peer;
+ u_int8_t i;
peer = peer_get(id);
if (peer == NULL) {
- log_warnx("peer_up: peer id %d already exists", id);
+ log_warnx("peer_up: unknown peer id %d", id);
return;
}
- if (peer->state != PEER_DOWN && peer->state != PEER_NONE)
+ if (peer->state != PEER_DOWN && peer->state != PEER_NONE &&
+ peer->state != PEER_UP)
fatalx("peer_up: bad state");
peer->remote_bgpid = ntohl(sup->remote_bgpid);
peer->short_as = sup->short_as;
memcpy(&peer->remote_addr, &sup->remote_addr,
sizeof(peer->remote_addr));
- memcpy(&peer->capa_announced, &sup->capa_announced,
- sizeof(peer->capa_announced));
- memcpy(&peer->capa_received, &sup->capa_received,
- sizeof(peer->capa_received));
+ memcpy(&peer->capa, &sup->capa, sizeof(peer->capa));
peer_localaddrs(peer, &sup->local_addr);
@@ -2607,7 +3262,10 @@ peer_up(u_int32_t id, struct session_up
*/
return;
- peer_dump(id, AFI_ALL, SAFI_ALL);
+ for (i = 0; i < AID_MAX; i++) {
+ if (peer->capa.mp[i] == 1)
+ peer_dump(id, i);
+ }
}
void
@@ -2641,43 +3299,90 @@ peer_down(u_int32_t id)
free(peer);
}
+/*
+ * Flush all routes older then staletime. If staletime is 0 all routes will
+ * be flushed.
+ */
+void
+peer_flush(struct rde_peer *peer, u_int8_t aid)
+{
+ struct rde_aspath *asp, *nasp;
+
+ /* walk through per peer RIB list and remove all stale prefixes. */
+ for (asp = LIST_FIRST(&peer->path_h); asp != NULL; asp = nasp) {
+ nasp = LIST_NEXT(asp, peer_l);
+ path_remove_stale(asp, aid);
+ }
+
+ /* Deletions are performed in path_remove() */
+ rde_send_pftable_commit();
+
+ /* flushed no need to keep staletime */
+ peer->staletime[aid] = 0;
+}
+
void
-peer_dump(u_int32_t id, u_int16_t afi, u_int8_t safi)
+peer_stale(u_int32_t id, u_int8_t aid)
{
struct rde_peer *peer;
+ time_t now;
peer = peer_get(id);
if (peer == NULL) {
- log_warnx("peer_down: unknown peer id %d", id);
+ log_warnx("peer_stale: unknown peer id %d", id);
return;
}
- if (afi == AFI_ALL || afi == AFI_IPv4)
- if (safi == SAFI_ALL || safi == SAFI_UNICAST) {
- if (peer->conf.announce_type == ANNOUNCE_DEFAULT_ROUTE)
- up_generate_default(rules_l, peer, AF_INET);
- else
- rib_dump(&ribs[peer->ribid], rde_up_dump_upcall,
- peer, AF_INET);
- }
- if (afi == AFI_ALL || afi == AFI_IPv6)
- if (safi == SAFI_ALL || safi == SAFI_UNICAST) {
- if (peer->conf.announce_type == ANNOUNCE_DEFAULT_ROUTE)
- up_generate_default(rules_l, peer, AF_INET6);
- else
- rib_dump(&ribs[peer->ribid], rde_up_dump_upcall,
- peer, AF_INET6);
- }
+ if (peer->staletime[aid])
+ peer_flush(peer, aid);
+ peer->staletime[aid] = now = time(NULL);
- if (peer->capa_received.restart && peer->capa_announced.restart)
- peer_send_eor(peer, afi, safi);
+ /* make sure new prefixes start on a higher timestamp */
+ do {
+ sleep(1);
+ } while (now >= time(NULL));
}
-/* End-of-RIB marker, draft-ietf-idr-restart-13.txt */
void
-peer_send_eor(struct rde_peer *peer, u_int16_t afi, u_int16_t safi)
+peer_dump(u_int32_t id, u_int8_t aid)
{
- if (afi == AFI_IPv4 && safi == SAFI_UNICAST) {
+ struct rde_peer *peer;
+
+ peer = peer_get(id);
+ if (peer == NULL) {
+ log_warnx("peer_dump: unknown peer id %d", id);
+ return;
+ }
+
+ if (peer->conf.announce_type == ANNOUNCE_DEFAULT_ROUTE)
+ up_generate_default(rules_l, peer, aid);
+ else
+ rib_dump(&ribs[peer->ribid], rde_up_dump_upcall, peer, aid);
+ if (peer->capa.grestart.restart)
+ up_generate_marker(peer, aid);
+}
+
+/* End-of-RIB marker, RFC 4724 */
+void
+peer_recv_eor(struct rde_peer *peer, u_int8_t aid)
+{
+ peer->prefix_rcvd_eor++;
+
+ /* First notify SE to remove possible race with the timeout. */
+ if (imsg_compose(ibuf_se, IMSG_SESSION_RESTARTED, peer->conf.id,
+ 0, -1, &aid, sizeof(aid)) == -1)
+ fatal("imsg_compose error");
+}
+
+void
+peer_send_eor(struct rde_peer *peer, u_int8_t aid)
+{
+ u_int16_t afi;
+ u_int8_t safi;
+
+ peer->prefix_sent_eor++;
+
+ if (aid == AID_INET) {
u_char null[4];
bzero(&null, 4);
@@ -2688,6 +3393,9 @@ peer_send_eor(struct rde_peer *peer, u_i
u_int16_t i;
u_char buf[10];
+ if (aid2afi(aid, &afi, &safi) == -1)
+ fatalx("peer_send_eor: bad AID");
+
i = 0; /* v4 withdrawn len */
bcopy(&i, &buf[0], sizeof(i));
i = htons(6); /* path attr len */
@@ -2709,39 +3417,61 @@ peer_send_eor(struct rde_peer *peer, u_i
* network announcement stuff
*/
void
-network_init(struct network_head *net_l)
-{
- struct network *n;
-
- reloadtime = time(NULL);
-
- while ((n = TAILQ_FIRST(net_l)) != NULL) {
- TAILQ_REMOVE(net_l, n, entry);
- network_add(&n->net, 1);
- free(n);
- }
-}
-
-void
network_add(struct network_config *nc, int flagstatic)
{
+ struct rdomain *rd;
struct rde_aspath *asp;
+ struct filter_set_head *vpnset = NULL;
+ in_addr_t prefix4;
u_int16_t i;
- asp = path_get();
- asp->aspath = aspath_get(NULL, 0);
- asp->origin = ORIGIN_IGP;
- asp->flags = F_ATTR_ORIGIN | F_ATTR_ASPATH |
- F_ATTR_LOCALPREF | F_PREFIX_ANNOUNCED;
- /* the nexthop is unset unless a default set overrides it */
+ if (nc->rtableid) {
+ SIMPLEQ_FOREACH(rd, rdomains_l, entry) {
+ if (rd->rtableid != nc->rtableid)
+ continue;
+ switch (nc->prefix.aid) {
+ case AID_INET:
+ prefix4 = nc->prefix.v4.s_addr;
+ bzero(&nc->prefix, sizeof(nc->prefix));
+ nc->prefix.aid = AID_VPN_IPv4;
+ nc->prefix.vpn4.rd = rd->rd;
+ nc->prefix.vpn4.addr.s_addr = prefix4;
+ nc->prefix.vpn4.labellen = 3;
+ nc->prefix.vpn4.labelstack[0] =
+ (rd->label >> 12) & 0xff;
+ nc->prefix.vpn4.labelstack[1] =
+ (rd->label >> 4) & 0xff;
+ nc->prefix.vpn4.labelstack[2] =
+ (rd->label << 4) & 0xf0;
+ nc->prefix.vpn4.labelstack[2] |= BGP_MPLS_BOS;
+ vpnset = &rd->export;
+ break;
+ default:
+ log_warnx("unable to VPNize prefix");
+ filterset_free(&nc->attrset);
+ return;
+ }
+ }
+ }
+
+ if (nc->type == NETWORK_MRTCLONE) {
+ asp = nc->asp;
+ } else {
+ asp = path_get();
+ asp->aspath = aspath_get(NULL, 0);
+ asp->origin = ORIGIN_IGP;
+ asp->flags = F_ATTR_ORIGIN | F_ATTR_ASPATH |
+ F_ATTR_LOCALPREF | F_PREFIX_ANNOUNCED;
+ /* the nexthop is unset unless a default set overrides it */
+ }
if (!flagstatic)
asp->flags |= F_ANN_DYNAMIC;
-
- rde_apply_set(asp, &nc->attrset, nc->prefix.af, peerself, peerself);
+ rde_apply_set(asp, &nc->attrset, nc->prefix.aid, peerself, peerself);
+ if (vpnset)
+ rde_apply_set(asp, vpnset, nc->prefix.aid, peerself, peerself);
for (i = 1; i < rib_size; i++)
path_update(&ribs[i], peerself, asp, &nc->prefix,
nc->prefixlen);
-
path_put(asp);
filterset_free(&nc->attrset);
}
@@ -2749,12 +3479,41 @@ network_add(struct network_config *nc, i
void
network_delete(struct network_config *nc, int flagstatic)
{
- u_int32_t flags = F_PREFIX_ANNOUNCED;
- u_int32_t i;
+ struct rdomain *rd;
+ in_addr_t prefix4;
+ u_int32_t flags = F_PREFIX_ANNOUNCED;
+ u_int32_t i;
if (!flagstatic)
flags |= F_ANN_DYNAMIC;
+ if (nc->rtableid) {
+ SIMPLEQ_FOREACH(rd, rdomains_l, entry) {
+ if (rd->rtableid != nc->rtableid)
+ continue;
+ switch (nc->prefix.aid) {
+ case AID_INET:
+ prefix4 = nc->prefix.v4.s_addr;
+ bzero(&nc->prefix, sizeof(nc->prefix));
+ nc->prefix.aid = AID_VPN_IPv4;
+ nc->prefix.vpn4.rd = rd->rd;
+ nc->prefix.vpn4.addr.s_addr = prefix4;
+ nc->prefix.vpn4.labellen = 3;
+ nc->prefix.vpn4.labelstack[0] =
+ (rd->label >> 12) & 0xff;
+ nc->prefix.vpn4.labelstack[1] =
+ (rd->label >> 4) & 0xff;
+ nc->prefix.vpn4.labelstack[2] =
+ (rd->label << 4) & 0xf0;
+ nc->prefix.vpn4.labelstack[2] |= BGP_MPLS_BOS;
+ break;
+ default:
+ log_warnx("unable to VPNize prefix");
+ return;
+ }
+ }
+ }
+
for (i = rib_size - 1; i > 0; i--)
prefix_remove(&ribs[i], peerself, &nc->prefix, nc->prefixlen,
flags);
@@ -2764,38 +3523,31 @@ void
network_dump_upcall(struct rib_entry *re, void *ptr)
{
struct prefix *p;
- struct kroute k;
- struct kroute6 k6;
+ struct kroute_full k;
struct bgpd_addr addr;
struct rde_dump_ctx *ctx = ptr;
LIST_FOREACH(p, &re->prefix_h, rib_l) {
if (!(p->aspath->flags & F_PREFIX_ANNOUNCED))
continue;
- if (p->prefix->af == AF_INET) {
- bzero(&k, sizeof(k));
- pt_getaddr(p->prefix, &addr);
- k.prefix.s_addr = addr.v4.s_addr;
- k.prefixlen = p->prefix->prefixlen;
- if (p->aspath->peer == peerself)
- k.flags = F_KERNEL;
- if (imsg_compose(ibuf_se_ctl, IMSG_CTL_SHOW_NETWORK, 0,
- ctx->req.pid, -1, &k, sizeof(k)) == -1)
- log_warnx("network_dump_upcall: "
- "imsg_compose error");
- }
- if (p->prefix->af == AF_INET6) {
- bzero(&k6, sizeof(k6));
- pt_getaddr(p->prefix, &addr);
- memcpy(&k6.prefix, &addr.v6, sizeof(k6.prefix));
- k6.prefixlen = p->prefix->prefixlen;
- if (p->aspath->peer == peerself)
- k6.flags = F_KERNEL;
- if (imsg_compose(ibuf_se_ctl, IMSG_CTL_SHOW_NETWORK6, 0,
- ctx->req.pid, -1, &k6, sizeof(k6)) == -1)
- log_warnx("network_dump_upcall: "
- "imsg_compose error");
- }
+ pt_getaddr(p->prefix, &addr);
+
+ bzero(&k, sizeof(k));
+ memcpy(&k.prefix, &addr, sizeof(k.prefix));
+ if (p->aspath->nexthop == NULL ||
+ p->aspath->nexthop->state != NEXTHOP_REACH)
+ k.nexthop.aid = k.prefix.aid;
+ else
+ memcpy(&k.nexthop, &p->aspath->nexthop->true_nexthop,
+ sizeof(k.nexthop));
+ k.prefixlen = p->prefix->prefixlen;
+ k.flags = F_KERNEL;
+ if ((p->aspath->flags & F_ANN_DYNAMIC) == 0)
+ k.flags = F_STATIC;
+ if (imsg_compose(ibuf_se_ctl, IMSG_CTL_SHOW_NETWORK, 0,
+ ctx->req.pid, -1, &k, sizeof(k)) == -1)
+ log_warnx("network_dump_upcall: "
+ "imsg_compose error");
}
}
@@ -2841,10 +3593,10 @@ sa_cmp(struct bgpd_addr *a, struct socka
struct sockaddr_in *in_b;
struct sockaddr_in6 *in6_b;
- if (a->af != b->sa_family)
+ if (aid2af(a->aid) != b->sa_family)
return (1);
- switch (a->af) {
+ switch (b->sa_family) {
case AF_INET:
in_b = (struct sockaddr_in *)b;
if (a->v4.s_addr != in_b->sin_addr.s_addr)
@@ -2855,10 +3607,11 @@ sa_cmp(struct bgpd_addr *a, struct socka
#ifdef __KAME__
/* directly stolen from sbin/ifconfig/ifconfig.c */
if (IN6_IS_ADDR_LINKLOCAL(&in6_b->sin6_addr)) {
- in6_b->sin6_scope_id =
- ntohs(*(u_int16_t *)&in6_b->sin6_addr.s6_addr[2]);
- in6_b->sin6_addr.s6_addr[2] =
- in6_b->sin6_addr.s6_addr[3] = 0;
+ if (in6_b->sin6_scope_id == 0) {
+ in6_b->sin6_scope_id =
+ IN6_LINKLOCAL_IFINDEX(in6_b->sin6_addr);
+ }
+ SET_IN6_LINKLOCAL_IFINDEX(in6_b->sin6_addr, 0);
}
#endif
if (bcmp(&a->v6, &in6_b->sin6_addr,
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