diff options
| -rw-r--r-- | nest/route.h | 2 | ||||
| -rw-r--r-- | sysdep/bsd/krt-sock.c | 5 | ||||
| -rw-r--r-- | sysdep/linux/netlink.c | 3 | ||||
| -rw-r--r-- | sysdep/unix/krt.c | 46 |
4 files changed, 34 insertions, 22 deletions
diff --git a/nest/route.h b/nest/route.h index c435b9e0..9368808f 100644 --- a/nest/route.h +++ b/nest/route.h @@ -223,8 +223,8 @@ typedef struct rte { struct { /* Routes generated by krt sync (both temporary and inherited ones) */ s8 src; /* Alleged route source (see krt.h) */ u8 proto; /* Kernel source protocol ID */ - u8 type; /* Kernel route type */ u8 seen; /* Seen during last scan */ + u8 best; /* Best route in network, propagated to core */ u32 metric; /* Kernel metric */ } krt; } u; diff --git a/sysdep/bsd/krt-sock.c b/sysdep/bsd/krt-sock.c index 29203d1b..6ff3b2b7 100644 --- a/sysdep/bsd/krt-sock.c +++ b/sysdep/bsd/krt-sock.c @@ -493,9 +493,8 @@ krt_read_route(struct ks_msg *msg, struct krt_proto *p, int scan) e->net = net; e->u.krt.src = src; e->u.krt.proto = src2; - - /* These are probably too Linux-specific */ - e->u.krt.type = 0; + e->u.krt.seen = 0; + e->u.krt.best = 0; e->u.krt.metric = 0; if (scan) diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c index 640d1877..1ffdff07 100644 --- a/sysdep/linux/netlink.c +++ b/sysdep/linux/netlink.c @@ -1102,7 +1102,8 @@ nl_parse_route(struct nlmsghdr *h, int scan) e->net = net; e->u.krt.src = src; e->u.krt.proto = i->rtm_protocol; - e->u.krt.type = i->rtm_type; + e->u.krt.seen = 0; + e->u.krt.best = 0; e->u.krt.metric = 0; if (a[RTA_PRIORITY]) diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c index 5e78586b..f5dee877 100644 --- a/sysdep/unix/krt.c +++ b/sysdep/unix/krt.c @@ -417,46 +417,58 @@ again: net *n = (net *) f; rte *e, **ee, *best, **pbest, *old_best; - old_best = n->routes; + /* + * Note that old_best may be NULL even if there was an old best route in + * the previous step, because it might be replaced in krt_learn_scan(). + * But in that case there is a new valid best route. + */ + + old_best = NULL; best = NULL; pbest = NULL; ee = &n->routes; while (e = *ee) { + if (e->u.krt.best) + old_best = e; + if (!e->u.krt.seen) { *ee = e->next; rte_free(e); continue; } + if (!best || best->u.krt.metric > e->u.krt.metric) { best = e; pbest = ee; } + e->u.krt.seen = 0; + e->u.krt.best = 0; ee = &e->next; } if (!n->routes) { DBG("%I/%d: deleting\n", n->n.prefix, n->n.pxlen); if (old_best) - { - krt_learn_announce_delete(p, n); - n->n.flags &= ~KRF_INSTALLED; - } + krt_learn_announce_delete(p, n); + FIB_ITERATE_PUT(&fit, f); fib_delete(fib, f); goto again; } + + best->u.krt.best = 1; *pbest = best->next; best->next = n->routes; n->routes = best; - if (best != old_best || !(n->n.flags & KRF_INSTALLED) || p->reload) + + if ((best != old_best) || p->reload) { DBG("%I/%d: announcing (metric=%d)\n", n->n.prefix, n->n.pxlen, best->u.krt.metric); krt_learn_announce_update(p, best); - n->n.flags |= KRF_INSTALLED; } else DBG("%I/%d: uptodate (metric=%d)\n", n->n.prefix, n->n.pxlen, best->u.krt.metric); @@ -515,31 +527,31 @@ krt_learn_async(struct krt_proto *p, rte *e, int new) best = n->routes; bestp = &n->routes; for(gg=&n->routes; g=*gg; gg=&g->next) + { if (best->u.krt.metric > g->u.krt.metric) { best = g; bestp = gg; } + + g->u.krt.best = 0; + } + if (best) { + best->u.krt.best = 1; *bestp = best->next; best->next = n->routes; n->routes = best; } + if (best != old_best) { DBG("krt_learn_async: distributing change\n"); if (best) - { - krt_learn_announce_update(p, best); - n->n.flags |= KRF_INSTALLED; - } + krt_learn_announce_update(p, best); else - { - n->routes = NULL; - krt_learn_announce_delete(p, n); - n->n.flags &= ~KRF_INSTALLED; - } + krt_learn_announce_delete(p, n); } } @@ -564,7 +576,7 @@ krt_dump(struct proto *P) static void krt_dump_attrs(rte *e) { - debug(" [m=%d,p=%d,t=%d]", e->u.krt.metric, e->u.krt.proto, e->u.krt.type); + debug(" [m=%d,p=%d]", e->u.krt.metric, e->u.krt.proto); } #endif |