diff options
Diffstat (limited to 'sysdep/linux/krt-scan.c')
| -rw-r--r-- | sysdep/linux/krt-scan.c | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/sysdep/linux/krt-scan.c b/sysdep/linux/krt-scan.c index efc8e93..1b00636 100644 --- a/sysdep/linux/krt-scan.c +++ b/sysdep/linux/krt-scan.c @@ -26,6 +26,8 @@ static int krt_scan_fd = -1; +/* FIXME: Filtering */ + static void krt_parse_entry(byte *e) { @@ -98,6 +100,8 @@ krt_parse_entry(byte *e) if (!(flags & RTF_GATEWAY)) /* It's a device route */ return; #endif + DBG("krt_parse_entry: kernel reporting unknown route %I/%d\n", dest, masklen); + /* FIXME: should be able to learn kernel routes */ net->n.flags |= KRF_UPDATE; } } @@ -108,6 +112,7 @@ krt_scan_proc(void) byte buf[32768]; int l, seen_hdr; + DBG("Scanning kernel table...\n"); if (krt_scan_fd < 0) { krt_scan_fd = open("/proc/net/route", O_RDONLY); @@ -146,14 +151,47 @@ krt_scan_proc(void) } static void -krt_scan_fire(timer *t) +krt_prune(void) { - struct krt_proto *x = t->data; - SCANOPT; + struct rtable *t = &master_table; + struct fib_node *f; - DBG("Scanning kernel table...\n"); - if (!krt_scan_proc()) + DBG("Pruning routes...\n"); + while (t && t->tos) + t = t->sibling; + if (!t) return; + FIB_WALK(&t->fib, f) + { + net *n = (net *) f; + switch (f->flags) + { + case KRF_UPDATE: + DBG("krt_prune: removing %I/%d\n", n->n.prefix, n->n.pxlen); + krt_remove_route(n, NULL); + /* Fall-thru */ + case 0: + if (n->routes) + { + DBG("krt_prune: reinstalling %I/%d\n", n->n.prefix, n->n.pxlen); + krt_add_route(n, n->routes); + } + break; + case KRF_SEEN: + break; + default: + die("krt_prune: invalid route status"); + } + f->flags = 0; + } + FIB_WALK_END; +} + +static void +krt_scan_fire(timer *t) +{ + if (krt_scan_proc()) + krt_prune(); } void @@ -185,4 +223,5 @@ krt_scan_shutdown(struct krt_proto *x) SCANOPT; tm_stop(p->timer); + /* FIXME: Remove all krt's? */ } |