Implements protocol templates.

Based on the patch from Alexander V. Chernikov.
Extended to support almost all protocols.
Uses 'protocol bgp NAME from TEMPLATE { ... }' syntax.

11 files changed, 54 insertions, 10 deletions

diff --git a/sysdep/bsd/krt-iface.h b/sysdep/bsd/krt-iface.h
index 7d96fe88..7f0d52bd 100644
--- a/sysdep/bsd/krt-iface.h
+++ b/sysdep/bsd/krt-iface.h
@@ -12,6 +12,14 @@
 /*
  *  We don't have split iface/scan/set parts. See krt-sock.h.
  */
+
+struct krt_if_params {
+};
+
+struct krt_if_status {
+};
+
 static inline int kif_params_same(struct krt_if_params *old UNUSED, struct krt_if_params *new UNUSED) { return 1; }
+static inline void kif_copy_params(struct krt_if_params *dest UNUSED, struct krt_if_params *src UNUSED) { }
 
 #endif
diff --git a/sysdep/bsd/krt-scan.h b/sysdep/bsd/krt-scan.h
index 284df5ea..19cd930d 100644
--- a/sysdep/bsd/krt-scan.h
+++ b/sysdep/bsd/krt-scan.h
@@ -17,5 +17,6 @@ struct krt_scan_status {
 };
 
 static inline int krt_scan_params_same(struct krt_scan_params *o UNUSED, struct krt_scan_params *n UNUSED) { return 1; }
+static inline void krt_scan_copy_params(struct krt_scan_params *d UNUSED, struct krt_scan_params *s UNUSED) { }
 
 #endif
diff --git a/sysdep/bsd/krt-sock.h b/sysdep/bsd/krt-sock.h
index d2a7efbc..aab639c4 100644
--- a/sysdep/bsd/krt-sock.h
+++ b/sysdep/bsd/krt-sock.h
@@ -34,13 +34,9 @@ struct krt_set_params {
 struct krt_set_status {
 };
 
-struct krt_if_params {
-};
-
-struct krt_if_status {
-};
-
 static inline int krt_set_params_same(struct krt_set_params *o UNUSED, struct krt_set_params *n UNUSED) { return 1; }
+static inline void krt_set_copy_params(struct krt_set_params *d UNUSED, struct krt_set_params *s UNUSED) { }
+
 void krt_read_msg(struct proto *p, struct ks_msg *msg, int scan);
 
 #endif
diff --git a/sysdep/linux/netlink/krt-iface.h b/sysdep/linux/netlink/krt-iface.h
index f44ca27f..770c6e2e 100644
--- a/sysdep/linux/netlink/krt-iface.h
+++ b/sysdep/linux/netlink/krt-iface.h
@@ -24,5 +24,6 @@ static inline void krt_if_shutdown(struct kif_proto *p UNUSED) { };
 static inline void krt_if_io_init(void) { };
 
 static inline int kif_params_same(struct krt_if_params *old UNUSED, struct krt_if_params *new UNUSED) { return 1; }
+static inline void kif_copy_params(struct krt_if_params *dest UNUSED, struct krt_if_params *src UNUSED) { }
 
 #endif
diff --git a/sysdep/linux/netlink/krt-scan.h b/sysdep/linux/netlink/krt-scan.h
index 7885f078..9b5e075b 100644
--- a/sysdep/linux/netlink/krt-scan.h
+++ b/sysdep/linux/netlink/krt-scan.h
@@ -30,4 +30,7 @@ static inline int krt_scan_params_same(struct krt_scan_params *o, struct krt_sca
   return o->table_id == n->table_id;
 }
 
+static inline void krt_scan_copy_params(struct krt_scan_params *d UNUSED, struct krt_scan_params *s UNUSED) { }
+/* table_id copied in krt_copy_config() */
+
 #endif
diff --git a/sysdep/linux/netlink/krt-set.h b/sysdep/linux/netlink/krt-set.h
index 83d082d0..4a08217b 100644
--- a/sysdep/linux/netlink/krt-set.h
+++ b/sysdep/linux/netlink/krt-set.h
@@ -23,5 +23,6 @@ static inline void krt_set_construct(struct krt_config *c UNUSED) { };
 static inline void krt_set_start(struct krt_proto *p UNUSED, int first UNUSED) { };
 static inline void krt_set_shutdown(struct krt_proto *p UNUSED, int last UNUSED) { };
 static inline int krt_set_params_same(struct krt_set_params *o UNUSED, struct krt_set_params *n UNUSED) { return 1; }
+static inline void krt_set_copy_params(struct krt_set_params *d UNUSED, struct krt_set_params *s UNUSED) { }
 
 #endif
diff --git a/sysdep/unix/krt-iface.h b/sysdep/unix/krt-iface.h
index 48075d6b..9e12bcc3 100644
--- a/sysdep/unix/krt-iface.h
+++ b/sysdep/unix/krt-iface.h
@@ -17,6 +17,7 @@ struct krt_if_status {
 
 extern int if_scan_sock;
 
-static inline int kif_params_same(struct krt_if_params *old, struct krt_if_params *new) { return 1; }
+static inline int kif_params_same(struct krt_if_params *old UNUSED, struct krt_if_params *new UNUSED) { return 1; }
+static inline void kif_copy_params(struct krt_if_params *dest UNUSED, struct krt_if_params *src UNUSED) { }
 
 #endif
diff --git a/sysdep/unix/krt-set.h b/sysdep/unix/krt-set.h
index 5d0b2134..87cffcfc 100644
--- a/sysdep/unix/krt-set.h
+++ b/sysdep/unix/krt-set.h
@@ -16,5 +16,6 @@ struct krt_set_status {
 };
 
 static inline int krt_set_params_same(struct krt_set_params *o UNUSED, struct krt_set_params *n UNUSED) { return 1; }
+static inline void krt_set_copy_params(struct krt_set_params *d UNUSED, struct krt_set_params *s UNUSED) { }
 
 #endif
diff --git a/sysdep/unix/krt.Y b/sysdep/unix/krt.Y
index 0375a13b..86081966 100644
--- a/sysdep/unix/krt.Y
+++ b/sysdep/unix/krt.Y
@@ -30,7 +30,7 @@ kern_proto_start: proto_start KERNEL {
      if (cf_krt)
        cf_error("Kernel protocol already defined");
 #endif
-     cf_krt = this_proto = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config));
+     cf_krt = this_proto = proto_config_new(&proto_unix_kernel, sizeof(struct krt_config), $1);
      this_proto->preference = DEF_PREF_INHERITED;
      THIS_KRT->scan_time = 60;
      THIS_KRT->learn = THIS_KRT->persist = 0;
@@ -66,7 +66,7 @@ CF_ADDTO(proto, kif_proto '}')
 kif_proto_start: proto_start DEVICE {
      if (cf_kif)
        cf_error("Kernel device protocol already defined");
-     cf_kif = this_proto = proto_config_new(&proto_unix_iface, sizeof(struct kif_config));
+     cf_kif = this_proto = proto_config_new(&proto_unix_iface, sizeof(struct kif_config), $1);
      this_proto->preference = DEF_PREF_DIRECT;
      THIS_KIF->scan_time = 60;
      init_list(&THIS_KIF->primary);
diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c
index 70570703..e5a8ce17 100644
--- a/sysdep/unix/krt.c
+++ b/sysdep/unix/krt.c
@@ -216,6 +216,23 @@ kif_reconfigure(struct proto *p, struct proto_config *new)
   return 1;
 }
 
+static void
+kif_copy_config(struct proto_config *dest, struct proto_config *src)
+{
+  struct kif_config *d = (struct kif_config *) dest;
+  struct kif_config *s = (struct kif_config *) src;
+
+  /* Shallow copy of everything (just scan_time currently) */
+  proto_copy_rest(dest, src, sizeof(struct krt_config));
+
+  /* Copy primary addr list */
+  cfg_copy_list(&d->primary, &s->primary, sizeof(struct kif_primary_item));
+
+  /* Fix sysdep parts */
+  kif_copy_params(&d->iface, &s->iface);
+}
+
+
 struct protocol proto_unix_iface = {
   name:		"Device",
   template:	"device%d",
@@ -224,6 +241,7 @@ struct protocol proto_unix_iface = {
   start:	kif_start,
   shutdown:	kif_shutdown,
   reconfigure:	kif_reconfigure,
+  copy_config:	kif_copy_config
 };
 
 /*
@@ -908,6 +926,19 @@ krt_reconfigure(struct proto *p, struct proto_config *new)
     ;
 }
 
+static void
+krt_copy_config(struct proto_config *dest, struct proto_config *src)
+{
+  struct krt_config *d = (struct krt_config *) dest;
+  struct krt_config *s = (struct krt_config *) src;
+
+  /* Shallow copy of everything */
+  proto_copy_rest(dest, src, sizeof(struct krt_config));
+
+  /* Fix sysdep parts */
+  krt_set_copy_params(&d->set, &s->set);
+  krt_scan_copy_params(&d->scan, &s->scan);
+}
 
 static int
 krt_get_attr(eattr * a, byte * buf, int buflen UNUSED)
@@ -936,6 +967,7 @@ struct protocol proto_unix_kernel = {
   start:	krt_start,
   shutdown:	krt_shutdown,
   reconfigure:	krt_reconfigure,
+  copy_config:	krt_copy_config,
   get_attr:	krt_get_attr,
 #ifdef KRT_ALLOW_LEARN
   dump:		krt_dump,
diff --git a/sysdep/unix/krt.h b/sysdep/unix/krt.h
index f83e6ee6..7bb4fe70 100644
--- a/sysdep/unix/krt.h
+++ b/sysdep/unix/krt.h
@@ -100,7 +100,7 @@ struct kif_config {
   struct proto_config c;
   struct krt_if_params iface;
   int scan_time;		/* How often we re-scan interfaces */
-  list primary;			/* Preferences for primary addresses */
+  list primary;			/* Preferences for primary addresses (struct kif_primary_item) */
 };
 
 struct kif_proto {