diff options
Diffstat (limited to 'sysdep/unix/krt.c')
-rw-r--r-- | sysdep/unix/krt.c | 197 |
1 files changed, 95 insertions, 102 deletions
diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c index 07a55c0d..f0241777 100644 --- a/sysdep/unix/krt.c +++ b/sysdep/unix/krt.c @@ -56,7 +56,7 @@ #include "nest/route.h" #include "nest/protocol.h" #include "filter/filter.h" -#include "lib/timer.h" +#include "sysdep/unix/timer.h" #include "conf/conf.h" #include "lib/string.h" @@ -75,7 +75,7 @@ void krt_io_init(void) { krt_pool = rp_new(&root_pool, "Kernel Syncer"); - krt_filter_lp = lp_new(krt_pool, 4080); + krt_filter_lp = lp_new_default(krt_pool); init_list(&krt_proto_list); krt_sys_io_init(); } @@ -131,14 +131,14 @@ prefer_addr(struct ifa *a, struct ifa *b) } static inline struct ifa * -find_preferred_ifa(struct iface *i, ip_addr prefix, ip_addr mask) +find_preferred_ifa(struct iface *i, const net_addr *n) { struct ifa *a, *b = NULL; WALK_LIST(a, i->addrs) { if (!(a->flags & IA_SECONDARY) && - ipa_equal(ipa_and(a->ip, mask), prefix) && + (!n || ipa_in_netX(a->ip, n)) && (!b || prefer_addr(a, b))) b = a; } @@ -156,21 +156,21 @@ kif_choose_primary(struct iface *i) WALK_LIST(it, cf->primary) { if (!it->pattern || patmatch(it->pattern, i->name)) - if (a = find_preferred_ifa(i, it->prefix, ipa_mkmask(it->pxlen))) + if (a = find_preferred_ifa(i, &it->addr)) return a; } if (a = kif_get_primary_ip(i)) return a; - return find_preferred_ifa(i, IPA_NONE, IPA_NONE); + return find_preferred_ifa(i, NULL); } static struct proto * kif_init(struct proto_config *c) { - struct kif_proto *p = proto_new(c, sizeof(struct kif_proto)); + struct kif_proto *p = proto_new(c); kif_sys_init(p); return &p->p; @@ -266,9 +266,6 @@ kif_copy_config(struct proto_config *dest, struct proto_config *src) struct kif_config *d = (struct kif_config *) dest; struct kif_config *s = (struct kif_config *) src; - /* Shallow copy of everything (just scan_time currently) */ - proto_copy_rest(dest, src, sizeof(struct kif_config)); - /* Copy primary addr list */ cfg_copy_list(&d->primary, &s->primary, sizeof(struct kif_primary_item)); @@ -280,7 +277,7 @@ kif_copy_config(struct proto_config *dest, struct proto_config *src) struct protocol proto_unix_iface = { .name = "Device", .template = "device%d", - .preference = DEF_PREF_DIRECT, + .proto_size = sizeof(struct kif_proto), .config_size = sizeof(struct kif_config), .preconfig = kif_preconfig, .init = kif_init, @@ -298,14 +295,14 @@ static inline void krt_trace_in(struct krt_proto *p, rte *e, char *msg) { if (p->p.debug & D_PACKETS) - log(L_TRACE "%s: %I/%d: %s", p->p.name, e->net->n.prefix, e->net->n.pxlen, msg); + log(L_TRACE "%s: %N: %s", p->p.name, e->net->n.addr, msg); } static inline void krt_trace_in_rl(struct tbf *f, struct krt_proto *p, rte *e, char *msg) { if (p->p.debug & D_PACKETS) - log_rl(f, L_TRACE "%s: %I/%d: %s", p->p.name, e->net->n.prefix, e->net->n.pxlen, msg); + log_rl(f, L_TRACE "%s: %N: %s", p->p.name, e->net->n.addr, msg); } /* @@ -348,19 +345,15 @@ krt_learn_announce_update(struct krt_proto *p, rte *e) net *n = e->net; rta *aa = rta_clone(e->attrs); rte *ee = rte_get_temp(aa); - net *nn = net_get(p->p.table, n->n.prefix, n->n.pxlen); - ee->net = nn; ee->pflags = 0; - ee->pref = p->p.preference; ee->u.krt = e->u.krt; - rte_update(&p->p, nn, ee); + rte_update(&p->p, n->n.addr, ee); } static void krt_learn_announce_delete(struct krt_proto *p, net *n) { - n = net_find(p->p.table, n->n.prefix, n->n.pxlen); - rte_update(&p->p, n, NULL); + rte_update(&p->p, n->n.addr, NULL); } /* Called when alien route is discovered during scan */ @@ -368,7 +361,7 @@ static void krt_learn_scan(struct krt_proto *p, rte *e) { net *n0 = e->net; - net *n = net_get(&p->krt_table, n0->n.prefix, n0->n.pxlen); + net *n = net_get(&p->krt_table, n0->n.addr); rte *m, **mm; e->attrs = rta_lookup(e->attrs); @@ -412,9 +405,8 @@ krt_learn_prune(struct krt_proto *p) FIB_ITERATE_INIT(&fit, fib); again: - FIB_ITERATE_START(fib, &fit, f) + FIB_ITERATE_START(fib, &fit, net, n) { - net *n = (net *) f; rte *e, **ee, *best, **pbest, *old_best; /* @@ -455,8 +447,8 @@ again: if (old_best) krt_learn_announce_delete(p, n); - FIB_ITERATE_PUT(&fit, f); - fib_delete(fib, f); + FIB_ITERATE_PUT(&fit); + fib_delete(fib, n); goto again; } @@ -473,7 +465,7 @@ again: else DBG("%I/%d: uptodate (metric=%d)\n", n->n.prefix, n->n.pxlen, best->u.krt.metric); } - FIB_ITERATE_END(f); + FIB_ITERATE_END; p->reload = 0; } @@ -482,7 +474,7 @@ static void krt_learn_async(struct krt_proto *p, rte *e, int new) { net *n0 = e->net; - net *n = net_get(&p->krt_table, n0->n.prefix, n0->n.pxlen); + net *n = net_get(&p->krt_table, n0->n.addr); rte *g, **gg, *best, **bestp, *old_best; e->attrs = rta_lookup(e->attrs); @@ -588,12 +580,11 @@ krt_dump_attrs(rte *e) static void krt_flush_routes(struct krt_proto *p) { - struct rtable *t = p->p.table; + struct rtable *t = p->p.main_channel->table; KRT_TRACE(p, D_EVENTS, "Flushing kernel routes"); - FIB_WALK(&t->fib, f) + FIB_WALK(&t->fib, net, n) { - net *n = (net *) f; rte *e = n->routes; if (rte_is_valid(e) && (n->n.flags & KRF_INSTALLED)) { @@ -608,12 +599,12 @@ krt_flush_routes(struct krt_proto *p) static struct rte * krt_export_net(struct krt_proto *p, net *net, rte **rt_free, ea_list **tmpa) { - struct announce_hook *ah = p->p.main_ahook; - struct filter *filter = ah->out_filter; + struct channel *c = p->p.main_channel; + struct filter *filter = c->out_filter; rte *rt; - if (p->p.accept_ra_types == RA_MERGED) - return rt_export_merged(ah, net, rt_free, tmpa, krt_filter_lp, 1); + if (c->ra_mode == RA_MERGED) + return rt_export_merged(c, net, rt_free, tmpa, krt_filter_lp, 1); rt = net->routes; *rt_free = NULL; @@ -654,17 +645,11 @@ krt_same_dest(rte *k, rte *e) if (ka->dest != ea->dest) return 0; - switch (ka->dest) - { - case RTD_ROUTER: - return ipa_equal(ka->gw, ea->gw); - case RTD_DEVICE: - return !strcmp(ka->iface->name, ea->iface->name); - case RTD_MULTIPATH: - return mpnh_same(ka->nexthops, ea->nexthops); - default: - return 1; - } + + if (ka->dest == RTD_UNICAST) + return nexthop_same(&(ka->nh), &(ea->nh)); + + return 1; } /* @@ -760,13 +745,12 @@ krt_got_route(struct krt_proto *p, rte *e) static void krt_prune(struct krt_proto *p) { - struct rtable *t = p->p.table; + struct rtable *t = p->p.main_channel->table; KRT_TRACE(p, D_EVENTS, "Pruning table %s", t->name); - FIB_WALK(&t->fib, f) + FIB_WALK(&t->fib, net, n) { - net *n = (net *) f; - int verdict = f->flags & KRF_VERDICT_MASK; + int verdict = n->n.flags & KRF_VERDICT_MASK; rte *new, *old, *rt_free = NULL; ea_list *tmpa = NULL; @@ -795,7 +779,7 @@ krt_prune(struct krt_proto *p) switch (verdict) { case KRF_CREATE: - if (new && (f->flags & KRF_INSTALLED)) + if (new && (n->n.flags & KRF_INSTALLED)) { krt_trace_in(p, new, "reinstalling"); krt_replace_rte(p, n, new, NULL, tmpa); @@ -822,7 +806,7 @@ krt_prune(struct krt_proto *p) if (rt_free) rte_free(rt_free); lp_flush(krt_filter_lp); - f->flags &= ~KRF_VERDICT_MASK; + n->n.flags &= ~KRF_VERDICT_MASK; } FIB_WALK_END; @@ -1000,7 +984,7 @@ krt_store_tmp_attrs(rte *rt, struct ea_list *attrs) static int krt_import_control(struct proto *P, rte **new, ea_list **attrs UNUSED, struct linpool *pool UNUSED) { - struct krt_proto *p = (struct krt_proto *) P; + // struct krt_proto *p = (struct krt_proto *) P; rte *e = *new; if (e->attrs->src->proto == P) @@ -1021,11 +1005,6 @@ krt_import_control(struct proto *P, rte **new, ea_list **attrs UNUSED, struct li return -1; } - if (!KRT_CF->devroutes && - (e->attrs->dest == RTD_DEVICE) && - (e->attrs->source != RTS_STATIC_DEVICE)) - return -1; - if (!krt_capable(e)) return -1; @@ -1033,7 +1012,7 @@ krt_import_control(struct proto *P, rte **new, ea_list **attrs UNUSED, struct li } static void -krt_rt_notify(struct proto *P, struct rtable *table UNUSED, net *net, +krt_rt_notify(struct proto *P, struct channel *ch UNUSED, net *net, rte *new, rte *old, struct ea_list *eattrs) { struct krt_proto *p = (struct krt_proto *) P; @@ -1067,10 +1046,10 @@ krt_if_notify(struct proto *P, uint flags, struct iface *iface UNUSED) krt_scan_timer_kick(p); } -static int -krt_reload_routes(struct proto *P) +static void +krt_reload_routes(struct channel *C) { - struct krt_proto *p = (struct krt_proto *) P; + struct krt_proto *p = (void *) C->proto; /* Although we keep learned routes in krt_table, we rather schedule a scan */ @@ -1079,14 +1058,12 @@ krt_reload_routes(struct proto *P) p->reload = 1; krt_scan_timer_kick(p); } - - return 1; } static void -krt_feed_end(struct proto *P) +krt_feed_end(struct channel *C) { - struct krt_proto *p = (struct krt_proto *) P; + struct krt_proto *p = (void *) C->proto; p->ready = 1; krt_scan_timer_kick(p); @@ -1107,14 +1084,42 @@ krt_rte_same(rte *a, rte *b) struct krt_config *krt_cf; +static void +krt_preconfig(struct protocol *P UNUSED, struct config *c) +{ + krt_cf = NULL; + krt_sys_preconfig(c); +} + +static void +krt_postconfig(struct proto_config *CF) +{ + struct krt_config *cf = (void *) CF; + + if (EMPTY_LIST(CF->channels)) + cf_error("Channel not specified"); + +#ifdef CONFIG_ALL_TABLES_AT_ONCE + if (krt_cf->scan_time != cf->scan_time) + cf_error("All kernel syncers must use the same table scan interval"); +#endif + + struct rtable_config *tab = proto_cf_main_channel(CF)->table; + if (tab->krt_attached) + cf_error("Kernel syncer (%s) already attached to table %s", tab->krt_attached->name, tab->name); + tab->krt_attached = CF; + + krt_sys_postconfig(cf); +} + static struct proto * -krt_init(struct proto_config *C) +krt_init(struct proto_config *CF) { - struct krt_proto *p = proto_new(C, sizeof(struct krt_proto)); - struct krt_config *c = (struct krt_config *) C; + struct krt_proto *p = proto_new(CF); + // struct krt_config *cf = (void *) CF; + + p->p.main_channel = proto_add_channel(&p->p, proto_cf_main_channel(CF)); - p->p.accept_ra_types = c->merge_paths ? RA_MERGED : RA_OPTIMAL; - p->p.merge_limit = c->merge_paths; p->p.import_control = krt_import_control; p->p.rt_notify = krt_rt_notify; p->p.if_notify = krt_if_notify; @@ -1133,6 +1138,16 @@ krt_start(struct proto *P) { struct krt_proto *p = (struct krt_proto *) P; + switch (p->p.net_type) + { + case NET_IP4: p->af = AF_INET; break; + case NET_IP6: p->af = AF_INET6; break; +#ifdef AF_MPLS + case NET_MPLS: p->af = AF_MPLS; break; +#endif + default: log(L_ERR "KRT: Tried to start with strange net type: %d", p->p.net_type); return PS_START; break; + } + add_tail(&krt_proto_list, &p->krt_node); #ifdef KRT_ALLOW_LEARN @@ -1147,8 +1162,8 @@ krt_start(struct proto *P) krt_scan_timer_start(p); - if (P->gr_recovery && KRT_CF->graceful_restart) - P->gr_wait = 1; + if (p->p.gr_recovery && KRT_CF->graceful_restart) + p->p.main_channel->gr_wait = 1; return PS_UP; } @@ -1177,40 +1192,19 @@ krt_shutdown(struct proto *P) } static int -krt_reconfigure(struct proto *p, struct proto_config *new) +krt_reconfigure(struct proto *p, struct proto_config *CF) { - struct krt_config *o = (struct krt_config *) p->cf; - struct krt_config *n = (struct krt_config *) new; + struct krt_config *o = (void *) p->cf; + struct krt_config *n = (void *) CF; + + if (!proto_configure_channel(p, &p->main_channel, proto_cf_main_channel(CF))) + return 0; if (!krt_sys_reconfigure((struct krt_proto *) p, n, o)) return 0; /* persist, graceful restart need not be the same */ - return o->scan_time == n->scan_time && o->learn == n->learn && - o->devroutes == n->devroutes && o->merge_paths == n->merge_paths; -} - -static void -krt_preconfig(struct protocol *P UNUSED, struct config *c) -{ - krt_cf = NULL; - krt_sys_preconfig(c); -} - -static void -krt_postconfig(struct proto_config *C) -{ - struct krt_config *c = (struct krt_config *) C; - -#ifdef CONFIG_ALL_TABLES_AT_ONCE - if (krt_cf->scan_time != c->scan_time) - cf_error("All kernel syncers must use the same table scan interval"); -#endif - - if (C->table->krt_attached) - cf_error("Kernel syncer (%s) already attached to table %s", C->table->krt_attached->name, C->table->name); - C->table->krt_attached = C; - krt_sys_postconfig(c); + return o->scan_time == n->scan_time && o->learn == n->learn && o->devroutes == n->devroutes; } struct proto_config * @@ -1234,9 +1228,6 @@ krt_copy_config(struct proto_config *dest, struct proto_config *src) struct krt_config *d = (struct krt_config *) dest; struct krt_config *s = (struct krt_config *) src; - /* Shallow copy of everything */ - proto_copy_rest(dest, src, sizeof(struct krt_config)); - /* Fix sysdep parts */ krt_sys_copy_config(d, s); } @@ -1265,6 +1256,8 @@ struct protocol proto_unix_kernel = { .template = "kernel%d", .attr_class = EAP_KRT, .preference = DEF_PREF_INHERITED, + .channel_mask = NB_IP | NB_MPLS, + .proto_size = sizeof(struct krt_proto), .config_size = sizeof(struct krt_config), .preconfig = krt_preconfig, .postconfig = krt_postconfig, |