diff options
Diffstat (limited to 'sysdep/linux')
| -rw-r--r-- | sysdep/linux/krt-scan.c | 46 |
1 files changed, 41 insertions, 5 deletions
diff --git a/sysdep/linux/krt-scan.c b/sysdep/linux/krt-scan.c index 1b00636..6fdb3bf 100644 --- a/sysdep/linux/krt-scan.c +++ b/sysdep/linux/krt-scan.c @@ -29,7 +29,37 @@ static int krt_scan_fd = -1; /* FIXME: Filtering */ static void -krt_parse_entry(byte *e) +krt_magic_route(struct krt_proto *p, net *net, ip_addr gw) +{ + neighbor *ng; + rta a, *t; + rte *e; + + ng = neigh_find(&p->p, &gw, 0); + if (!ng) + { + log(L_ERR "Kernel told us to use non-neighbor %I for %I/%d\n", gw, net->n.prefix, net->n.pxlen); + return; + } + a.proto = &p->p; + a.source = RTS_INHERIT; + a.scope = SCOPE_UNIVERSE; + a.cast = RTC_UNICAST; + a.dest = RTD_ROUTER; + a.tos = 0; + a.flags = 0; + a.gw = gw; + a.from = IPA_NONE; + a.iface = ng->iface; + a.attrs = NULL; + t = rta_lookup(&a); + e = rte_get_temp(t); + e->net = net; + rte_update(net, &p->p, e); +} + +static void +krt_parse_entry(byte *e, struct krt_proto *p) { u32 dest0, gw0, mask0; ip_addr dest, gw, mask; @@ -101,13 +131,17 @@ krt_parse_entry(byte *e) return; #endif DBG("krt_parse_entry: kernel reporting unknown route %I/%d\n", dest, masklen); - /* FIXME: should be able to learn kernel routes */ +#if 1 + /* FIXME: should be configurable */ + if (flags & RTF_GATEWAY) + krt_magic_route(p, net, gw); +#endif net->n.flags |= KRF_UPDATE; } } static int -krt_scan_proc(void) +krt_scan_proc(struct krt_proto *p) { byte buf[32768]; int l, seen_hdr; @@ -136,7 +170,7 @@ krt_scan_proc(void) while (l >= 128) { if (seen_hdr++) - krt_parse_entry(z); + krt_parse_entry(z, p); z += 128; l -= 128; } @@ -190,7 +224,9 @@ krt_prune(void) static void krt_scan_fire(timer *t) { - if (krt_scan_proc()) + struct krt_proto *p = t->data; + + if (krt_scan_proc(p)) krt_prune(); } |