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authorMartin Mares <mj@ucw.cz>1999-02-13 21:46:03 +0100
committerMartin Mares <mj@ucw.cz>1999-02-13 21:46:03 +0100
commit013a9b91fe495371cbf9a5690613de45b634e3af (patch)
tree29ed464a9658596b389e66c0a206b00e3c94200e /sysdep/unix
parent0a2e9d9f5685fb4ca63e02fd3645194bb6de79d7 (diff)
downloadbird-013a9b91fe495371cbf9a5690613de45b634e3af.tar
bird-013a9b91fe495371cbf9a5690613de45b634e3af.zip
When shutting down, remove all routes (except for RTS_INHERIT and RTS_DEVICE
routes) from kernel routing tables unless the "persist" switch is set.
Diffstat (limited to 'sysdep/unix')
-rw-r--r--sysdep/unix/Modules1
-rw-r--r--sysdep/unix/krt-set.Y29
-rw-r--r--sysdep/unix/krt-set.c26
-rw-r--r--sysdep/unix/krt-set.h1
-rw-r--r--sysdep/unix/krt.h1
-rw-r--r--sysdep/unix/sync-rt.c1
6 files changed, 59 insertions, 0 deletions
diff --git a/sysdep/unix/Modules b/sysdep/unix/Modules
index f6db6d3..2969ee4 100644
--- a/sysdep/unix/Modules
+++ b/sysdep/unix/Modules
@@ -9,5 +9,6 @@ krt.Y
krt.h
krt-set.c
krt-set.h
+krt-set.Y
krt-iface.h
krt-iface.Y
diff --git a/sysdep/unix/krt-set.Y b/sysdep/unix/krt-set.Y
new file mode 100644
index 0000000..551ee16
--- /dev/null
+++ b/sysdep/unix/krt-set.Y
@@ -0,0 +1,29 @@
+/*
+ * BIRD -- UNIX Kernel Syncer Configuration
+ *
+ * (c) 1998--1999 Martin Mares <mj@ucw.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+CF_HDR
+
+#include "lib/krt-scan.h"
+
+CF_DECLS
+
+CF_KEYWORDS(PERSIST)
+
+CF_GRAMMAR
+
+CF_ADDTO(kern_proto, kern_proto krt_set_item ';')
+
+krt_set_item:
+ PERSIST bool {
+ ((struct krt_config *) this_proto)->setopt.persist = $2;
+ }
+ ;
+
+CF_CODE
+
+CF_END
diff --git a/sysdep/unix/krt-set.c b/sysdep/unix/krt-set.c
index 2f0abe6..e77015b 100644
--- a/sysdep/unix/krt-set.c
+++ b/sysdep/unix/krt-set.c
@@ -133,3 +133,29 @@ void
krt_set_preconfig(struct krt_config *c)
{
}
+
+void
+krt_set_shutdown(struct krt_proto *x)
+{
+ struct rtable *t = &master_table;
+
+ if (((struct krt_config *) x->p.cf)->setopt.persist)
+ return;
+ DBG("Flushing kernel routes...\n");
+ while (t && t->tos)
+ t = t->sibling;
+ if (!t)
+ return;
+ FIB_WALK(&t->fib, f)
+ {
+ net *n = (net *) f;
+ rte *e = n->routes;
+ if (e)
+ {
+ rta *a = e->attrs;
+ if (a->source != RTS_DEVICE && a->source != RTS_INHERIT)
+ krt_remove_route(e);
+ }
+ }
+ FIB_WALK_END;
+}
diff --git a/sysdep/unix/krt-set.h b/sysdep/unix/krt-set.h
index 53b1146..ec96e65 100644
--- a/sysdep/unix/krt-set.h
+++ b/sysdep/unix/krt-set.h
@@ -10,6 +10,7 @@
#define _BIRD_KRT_SET_H_
struct krt_set_params {
+ int persist;
};
struct krt_set_status {
diff --git a/sysdep/unix/krt.h b/sysdep/unix/krt.h
index 5631bc5..9b630b2 100644
--- a/sysdep/unix/krt.h
+++ b/sysdep/unix/krt.h
@@ -52,6 +52,7 @@ void krt_scan_ifaces_done(struct krt_proto *);
void krt_set_preconfig(struct krt_config *);
void krt_set_start(struct krt_proto *);
+void krt_set_shutdown(struct krt_proto *);
/* sync-if.c */
diff --git a/sysdep/unix/sync-rt.c b/sysdep/unix/sync-rt.c
index 094da1c..99ef92a 100644
--- a/sysdep/unix/sync-rt.c
+++ b/sysdep/unix/sync-rt.c
@@ -43,6 +43,7 @@ krt_shutdown(struct proto *p)
krt_scan_shutdown(k);
krt_if_shutdown(k);
+ krt_set_shutdown(k);
return PS_DOWN;
}