From beb5f78ada79ac90f31f2c4923302c74d9ab38bf Mon Sep 17 00:00:00 2001 From: Maria Matejka Date: Mon, 27 Jun 2022 19:04:22 +0200 Subject: [PATCH] Preexport callback now takes the channel instead of protocol as argument Passing protocol to preexport was in fact a historical relic from the old times when channels weren't a thing. Refactoring that to match current extensibility needs. --- nest/protocol.h | 2 +- nest/route.h | 2 +- nest/rt-show.c | 2 +- nest/rt-table.c | 7 ++++--- proto/babel/babel.c | 4 ++-- proto/bgp/attrs.c | 4 ++-- proto/bgp/bgp.h | 2 +- proto/ospf/ospf.c | 8 ++++---- proto/pipe/pipe.c | 4 ++-- proto/radv/radv.c | 6 +++--- sysdep/unix/krt.c | 4 ++-- 11 files changed, 23 insertions(+), 22 deletions(-) diff --git a/nest/protocol.h b/nest/protocol.h index abcc505d..3b3812a5 100644 --- a/nest/protocol.h +++ b/nest/protocol.h @@ -217,7 +217,7 @@ 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 channel *, struct rte **rt, struct linpool *pool); void (*reload_routes)(struct channel *); void (*feed_begin)(struct channel *, int initial); void (*feed_end)(struct channel *); diff --git a/nest/route.h b/nest/route.h index 395139a3..1dacd92f 100644 --- a/nest/route.h +++ b/nest/route.h @@ -357,7 +357,7 @@ rte *rte_find(net *net, struct rte_src *src); rte *rte_get_temp(struct rta *); void rte_update2(struct channel *c, const net_addr *n, rte *new, struct rte_src *src); /* rte_update() moved to protocol.h to avoid dependency conflicts */ -int rt_examine(rtable *t, net_addr *a, struct proto *p, const struct filter *filter); +int rt_examine(rtable *t, net_addr *a, struct channel *c, const struct filter *filter); rte *rt_export_merged(struct channel *c, net *net, rte **rt_free, linpool *pool, int silent); void rt_refresh_begin(rtable *t, struct channel *c); void rt_refresh_end(rtable *t, struct channel *c); diff --git a/nest/rt-show.c b/nest/rt-show.c index f8b7ba51..7639e5f7 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(ec, &e, c->show_pool) : 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 2cf55421..a2fa5e77 100644 --- a/nest/rt-table.c +++ b/nest/rt-table.c @@ -870,7 +870,7 @@ 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(c, &rt, pool) : 0; if (v < 0) { if (silent) @@ -1883,8 +1883,9 @@ rte_modify(rte *old) /* Check rtable for best route to given net whether it would be exported do p */ int -rt_examine(rtable *t, net_addr *a, struct proto *p, const struct filter *filter) +rt_examine(rtable *t, net_addr *a, struct channel *c, const struct filter *filter) { + struct proto *p = c->proto; net *n = net_find(t, a); rte *rt = n ? n->routes : NULL; @@ -1894,7 +1895,7 @@ 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(c, &rt, rte_update_pool) : 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 71452a6f..0d0304f9 100644 --- a/proto/babel/babel.c +++ b/proto/babel/babel.c @@ -2230,12 +2230,12 @@ babel_kick_timer(struct babel_proto *p) static int -babel_preexport(struct proto *P, struct rte **new, struct linpool *pool UNUSED) +babel_preexport(struct channel *C, struct rte **new, struct linpool *pool UNUSED) { struct rta *a = (*new)->attrs; /* Reject our own unreachable routes */ - if ((a->dest == RTD_UNREACHABLE) && (a->src->proto == P)) + if ((a->dest == RTD_UNREACHABLE) && (a->src->proto == C->proto)) return -1; return 0; diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c index a9787173..9dd9fb1a 100644 --- a/proto/bgp/attrs.c +++ b/proto/bgp/attrs.c @@ -1669,11 +1669,11 @@ 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 channel *C, rte **new, struct linpool *pool UNUSED) { rte *e = *new; struct proto *SRC = e->attrs->src->proto; - struct bgp_proto *p = (struct bgp_proto *) P; + struct bgp_proto *p = (struct bgp_proto *) C->proto; struct bgp_proto *src = (SRC->proto == &proto_bgp) ? (struct bgp_proto *) SRC : NULL; /* Reject our routes */ diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index 4969c0b9..7cd1c27d 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -589,7 +589,7 @@ 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 channel *, struct rte **, struct linpool *); 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 ba8c2e2b..42ffdb06 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 channel *C, rte **new, struct linpool *pool); 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); @@ -484,14 +484,14 @@ ospf_disp(timer * timer) * import to the filters. */ static int -ospf_preexport(struct proto *P, rte **new, struct linpool *pool UNUSED) +ospf_preexport(struct channel *C, rte **new, struct linpool *pool UNUSED) { - struct ospf_proto *p = (struct ospf_proto *) P; + struct ospf_proto *p = (struct ospf_proto *) C->proto; struct ospf_area *oa = ospf_main_area(p); rte *e = *new; /* Reject our own routes */ - if (e->attrs->src->proto == P) + if (e->attrs->src->proto == &p->p) return -1; /* Do not export routes to stub areas */ diff --git a/proto/pipe/pipe.c b/proto/pipe/pipe.c index f991d09a..481f5804 100644 --- a/proto/pipe/pipe.c +++ b/proto/pipe/pipe.c @@ -101,11 +101,11 @@ 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 channel *C, rte **ee, struct linpool *p UNUSED) { struct proto *pp = (*ee)->sender->proto; - if (pp == P) + if (pp == C->proto) return -1; /* Avoid local loops automatically */ return 0; diff --git a/proto/radv/radv.c b/proto/radv/radv.c index 66e8eb4b..fe3713ef 100644 --- a/proto/radv/radv.c +++ b/proto/radv/radv.c @@ -391,10 +391,10 @@ 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 channel *C, rte **new, struct linpool *pool UNUSED) { // struct radv_proto *p = (struct radv_proto *) P; - struct radv_config *cf = (struct radv_config *) (P->cf); + struct radv_config *cf = (struct radv_config *) (C->proto->cf); if (radv_net_match_trigger(cf, (*new)->net)) return RIC_PROCESS; @@ -555,7 +555,7 @@ radv_check_active(struct radv_proto *p) return 1; struct channel *c = p->p.main_channel; - return rt_examine(c->table, &cf->trigger, &p->p, c->out_filter); + return rt_examine(c->table, &cf->trigger, c, c->out_filter); } static void diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c index 7c2614b1..a02cf977 100644 --- a/sysdep/unix/krt.c +++ b/sysdep/unix/krt.c @@ -903,12 +903,12 @@ 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 channel *C, rte **new, struct linpool *pool UNUSED) { // struct krt_proto *p = (struct krt_proto *) P; rte *e = *new; - if (e->attrs->src->proto == P) + if (e->attrs->src->proto == C->proto) return -1; if (!krt_capable(e))