From d5a32563df1653952937117133f09143929ff0c2 Mon Sep 17 00:00:00 2001 From: Maria Matejka Date: Sun, 12 Apr 2020 21:54:20 +0200 Subject: [PATCH] Preexport: No route modification, no linpool needed --- nest/protocol.h | 11 ++++++----- nest/rt-show.c | 2 +- nest/rt-table.c | 4 ++-- proto/babel/babel.c | 5 ++--- proto/bgp/attrs.c | 3 +-- proto/bgp/bgp.h | 2 +- proto/ospf/ospf.c | 5 ++--- proto/pipe/pipe.c | 4 ++-- proto/radv/radv.c | 4 ++-- sysdep/unix/krt.c | 4 +--- 10 files changed, 20 insertions(+), 24 deletions(-) diff --git a/nest/protocol.h b/nest/protocol.h index abcc505d..6ee97b7c 100644 --- a/nest/protocol.h +++ b/nest/protocol.h @@ -200,10 +200,11 @@ struct proto { * neigh_notify Notify protocol about neighbor cache events. * make_tmp_attrs Add attributes to rta from from private attrs stored in rte. The route and rta MUST NOT be cached. * store_tmp_attrs Store private attrs back to rte and undef added attributes. The route and rta MUST NOT be cached. - * preexport Called as the first step of the route exporting process. - * It can construct a new rte, add private attributes and - * decide whether the route shall be exported: 1=yes, -1=no, - * 0=process it through the export filter set by the user. + * preexport Called as the first step of the route exporting process. + * It can decide whether the route shall be exported: + * -1 = reject, + * 0 = continue to export filter + * 1 = accept immediately * reload_routes Request channel to reload all its routes to the core * (using rte_update()). Returns: 0=reload cannot be done, * 1= reload is scheduled and will happen (asynchronously). @@ -217,7 +218,7 @@ struct proto { void (*neigh_notify)(struct neighbor *neigh); void (*make_tmp_attrs)(struct rte *rt, struct linpool *pool); void (*store_tmp_attrs)(struct rte *rt, struct linpool *pool); - int (*preexport)(struct proto *, struct rte **rt, struct linpool *pool); + int (*preexport)(struct proto *, struct rte *rt); void (*reload_routes)(struct channel *); void (*feed_begin)(struct channel *, int initial); void (*feed_end)(struct channel *); diff --git a/nest/rt-show.c b/nest/rt-show.c index a2ebe6a4..cccd91ab 100644 --- a/nest/rt-show.c +++ b/nest/rt-show.c @@ -154,7 +154,7 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d) else if (d->export_mode) { struct proto *ep = ec->proto; - int ic = ep->preexport ? ep->preexport(ep, &e, c->show_pool) : 0; + int ic = ep->preexport ? ep->preexport(ep, e) : 0; if (ec->ra_mode == RA_OPTIMAL || ec->ra_mode == RA_MERGED) pass = 1; diff --git a/nest/rt-table.c b/nest/rt-table.c index b1e3ab70..eb306227 100644 --- a/nest/rt-table.c +++ b/nest/rt-table.c @@ -605,7 +605,7 @@ export_filter_(struct channel *c, rte *rt0, rte **rt_free, linpool *pool, int si rt = rt0; *rt_free = NULL; - v = p->preexport ? p->preexport(p, &rt, pool) : 0; + v = p->preexport ? p->preexport(p, rt) : 0; if (v < 0) { if (silent) @@ -1605,7 +1605,7 @@ rt_examine(rtable *t, net_addr *a, struct proto *p, const struct filter *filter) rte_update_lock(); /* Rest is stripped down export_filter() */ - int v = p->preexport ? p->preexport(p, &rt, rte_update_pool) : 0; + int v = p->preexport ? p->preexport(p, rt) : 0; if (v == RIC_PROCESS) { rte_make_tmp_attrs(&rt, rte_update_pool, NULL); diff --git a/proto/babel/babel.c b/proto/babel/babel.c index 1e87212c..68cc62f1 100644 --- a/proto/babel/babel.c +++ b/proto/babel/babel.c @@ -2231,10 +2231,9 @@ babel_kick_timer(struct babel_proto *p) static int -babel_preexport(struct proto *P, struct rte **new, struct linpool *pool UNUSED) +babel_preexport(struct proto *P, struct rte *new) { - struct rta *a = (*new)->attrs; - + struct rta *a = new->attrs; /* Reject our own unreachable routes */ if ((a->dest == RTD_UNREACHABLE) && (a->src->proto == P)) return -1; diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c index 24ba00ba..95d1c337 100644 --- a/proto/bgp/attrs.c +++ b/proto/bgp/attrs.c @@ -1661,9 +1661,8 @@ bgp_free_prefix(struct bgp_channel *c, struct bgp_prefix *px) */ int -bgp_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED) +bgp_preexport(struct proto *P, rte *e) { - rte *e = *new; struct proto *SRC = e->attrs->src->proto; struct bgp_proto *p = (struct bgp_proto *) P; struct bgp_proto *src = (SRC->proto == &proto_bgp) ? (struct bgp_proto *) SRC : NULL; diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index cca4b448..20944fe6 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -583,7 +583,7 @@ int bgp_rte_mergable(rte *pri, rte *sec); int bgp_rte_recalculate(rtable *table, net *net, rte *new, rte *old, rte *old_best); struct rte *bgp_rte_modify_stale(struct rte *r, struct linpool *pool); void bgp_rt_notify(struct proto *P, struct channel *C, net *n, rte *new, rte *old); -int bgp_preexport(struct proto *, struct rte **, struct linpool *); +int bgp_preexport(struct proto *, struct rte *); int bgp_get_attr(const struct eattr *e, byte *buf, int buflen); void bgp_get_route_info(struct rte *, byte *buf); int bgp_total_aigp_metric_(rte *e, u64 *metric, const struct adata **ad); diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c index ebebf0ff..48e078ed 100644 --- a/proto/ospf/ospf.c +++ b/proto/ospf/ospf.c @@ -107,7 +107,7 @@ #include #include "ospf.h" -static int ospf_preexport(struct proto *P, rte **new, struct linpool *pool); +static int ospf_preexport(struct proto *P, rte *new); static void ospf_make_tmp_attrs(struct rte *rt, struct linpool *pool); static void ospf_store_tmp_attrs(struct rte *rt, struct linpool *pool); static void ospf_reload_routes(struct channel *C); @@ -484,11 +484,10 @@ ospf_disp(timer * timer) * import to the filters. */ static int -ospf_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED) +ospf_preexport(struct proto *P, rte *e) { struct ospf_proto *p = (struct ospf_proto *) P; struct ospf_area *oa = ospf_main_area(p); - rte *e = *new; /* Reject our own routes */ if (e->attrs->src->proto == P) diff --git a/proto/pipe/pipe.c b/proto/pipe/pipe.c index 3532f114..a50d44a3 100644 --- a/proto/pipe/pipe.c +++ b/proto/pipe/pipe.c @@ -98,9 +98,9 @@ pipe_rt_notify(struct proto *P, struct channel *src_ch, net *n, rte *new, rte *o } static int -pipe_preexport(struct proto *P, rte **ee, struct linpool *p UNUSED) +pipe_preexport(struct proto *P, rte *e) { - struct proto *pp = (*ee)->sender->proto; + struct proto *pp = e->sender->proto; if (pp == P) return -1; /* Avoid local loops automatically */ diff --git a/proto/radv/radv.c b/proto/radv/radv.c index 66e8eb4b..540ff2a7 100644 --- a/proto/radv/radv.c +++ b/proto/radv/radv.c @@ -391,12 +391,12 @@ radv_net_match_trigger(struct radv_config *cf, net *n) } int -radv_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED) +radv_preexport(struct proto *P, rte *new) { // struct radv_proto *p = (struct radv_proto *) P; struct radv_config *cf = (struct radv_config *) (P->cf); - if (radv_net_match_trigger(cf, (*new)->net)) + if (radv_net_match_trigger(cf, new->net)) return RIC_PROCESS; if (cf->propagate_routes) diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c index 7c2614b1..da61fc9c 100644 --- a/sysdep/unix/krt.c +++ b/sysdep/unix/krt.c @@ -903,11 +903,9 @@ krt_store_tmp_attrs(struct rte *rt, struct linpool *pool) } static int -krt_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED) +krt_preexport(struct proto *P, rte *e) { // struct krt_proto *p = (struct krt_proto *) P; - rte *e = *new; - if (e->attrs->src->proto == P) return -1;