Implements MRTdump feature.

4 files changed, 78 insertions, 10 deletions

diff --git a/nest/config.Y b/nest/config.Y
index dbb10ad..11f0a9b 100644
--- a/nest/config.Y
+++ b/nest/config.Y
@@ -45,7 +45,7 @@ CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, TABLE, STATES, ROUTES, FILT
 CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFACES)
 CF_KEYWORDS(PRIMARY, STATS, COUNT, FOR, COMMANDS, PREEXPORT, GENERATE)
 CF_KEYWORDS(LISTEN, BGP, V6ONLY, ADDRESS, PORT, PASSWORDS, DESCRIPTION)
-CF_KEYWORDS(RELOAD, IN, OUT)
+CF_KEYWORDS(RELOAD, IN, OUT, MRTDUMP, MESSAGES)
 
 CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
 	RIP, OSPF, OSPF_IA, OSPF_EXT1, OSPF_EXT2, BGP, PIPE)
@@ -58,7 +58,7 @@ CF_ENUM(T_ENUM_RTD, RTD_, ROUTER, DEVICE, BLACKHOLE, UNREACHABLE, PROHIBIT)
 %type <r> rtable
 %type <s> optsym
 %type <ra> r_args
-%type <i> echo_mask echo_size debug_mask debug_list debug_flag export_or_preexport
+%type <i> echo_mask echo_size debug_mask debug_list debug_flag mrtdump_mask mrtdump_list mrtdump_flag export_or_preexport
 %type <t> proto_patt
 
 CF_GRAMMAR
@@ -138,6 +138,7 @@ proto_item:
    }
  | DISABLED bool { this_proto->disabled = $2; }
  | DEBUG debug_mask { this_proto->debug = $2; }
+ | MRTDUMP mrtdump_mask { this_proto->mrtdump = $2; }
  | IMPORT imexport { this_proto->in_filter = $2; }
  | EXPORT imexport { this_proto->out_filter = $2; }
  | TABLE rtable { this_proto->table = $2; }
@@ -166,6 +167,8 @@ debug_default:
  | DEBUG COMMANDS expr { new_config->cli_debug = $3; }
  ;
 
+/* MRTDUMP PROTOCOLS is in systep/unix/config.Y */
+
 /* Interface patterns */
 
 iface_patt_node_init:
@@ -251,6 +254,24 @@ debug_flag:
  | PACKETS	{ $$ = D_PACKETS; }
  ;
 
+/* MRTDump flags */
+
+mrtdump_mask:
+   ALL { $$ = ~0; }
+ | OFF { $$ = 0; }
+ | '{' mrtdump_list '}' { $$ = $2; }
+ ;
+
+mrtdump_list:
+   mrtdump_flag
+ | mrtdump_list ',' mrtdump_flag { $$ = $1 | $3; }
+ ;
+
+mrtdump_flag:
+   STATES	{ $$ = MD_STATES; }
+ | MESSAGES	{ $$ = MD_MESSAGES; }
+ ;
+
 /* Password lists */
 
 password_list:
@@ -450,9 +471,14 @@ CF_CLI(RELOAD IN, proto_patt, <protocol> | \"<pattern>\" | all, [[Reload protoco
 CF_CLI(RELOAD OUT, proto_patt, <protocol> | \"<pattern>\" | all, [[Reload protocol (just exported routes)]])
 { proto_xxable($3, XX_RELOAD_OUT); } ;
 
-CF_CLI_HELP(DEBUG, ..., [[Control protocol debugging]])
-CF_CLI(DEBUG, proto_patt debug_mask, (<protocol> | <pattern> | all) (all | off | { states | routes | filters | events | packets }), [[Control protocol debugging]])
-{ proto_debug($2, $3); }
+CF_CLI_HELP(DEBUG, ..., [[Control protocol debugging via BIRD logs]])
+CF_CLI(DEBUG, proto_patt debug_mask, (<protocol> | <pattern> | all) (all | off | { states | routes | filters | events | packets }), [[Control protocol debugging via BIRD logs]])
+{ proto_debug($2, 0, $3); }
+ ;
+
+CF_CLI_HELP(MRTDUMP, ..., [[Control protocol debugging via MRTdump files]])
+CF_CLI(MRTDUMP, proto_patt mrtdump_mask, (<protocol> | <pattern> | all) (all | off | { states | messages }), [[Control protocol debugging via MRTdump format]])
+{ proto_debug($2, 1, $3); }
  ;
 
 proto_patt:
diff --git a/nest/mrtdump.h b/nest/mrtdump.h
new file mode 100644
index 0000000..8638804
--- /dev/null
+++ b/nest/mrtdump.h
@@ -0,0 +1,27 @@
+/*
+ *	BIRD -- Password handling
+ *
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef MRTDUMP_H
+#define MRTDUMP_H
+#include "nest/protocol.h"
+
+/* MRTDump values */
+
+#define MRTDUMP_HDR_LENGTH	12
+
+#define BGP4MP			16
+
+#define BGP4MP_MESSAGE		1
+#define BGP4MP_MESSAGE_AS4	4
+#define BGP4MP_STATE_CHANGE_AS4	5
+
+
+/* implemented in sysdep */
+void mrt_dump_message(struct proto *p, u16 type, u16 subtype, byte *buf, u32 len);
+
+#endif
+
diff --git a/nest/proto.c b/nest/proto.c
index 4f352a6..9f0311f 100644
--- a/nest/proto.c
+++ b/nest/proto.c
@@ -111,6 +111,7 @@ proto_new(struct proto_config *c, unsigned size)
 
   p->cf = c;
   p->debug = c->debug;
+  p->mrtdump = c->mrtdump;
   p->name = c->name;
   p->preference = c->preference;
   p->disabled = c->disabled;
@@ -201,6 +202,7 @@ proto_config_new(struct protocol *pr, unsigned size)
   c->out_filter = FILTER_REJECT;
   c->table = c->global->master_rtc;
   c->debug = new_config->proto_default_debug;
+  c->mrtdump = new_config->proto_default_mrtdump;
   return c;
 }
 
@@ -325,6 +327,7 @@ protos_commit(struct config *new, struct config *old, int force_reconfig, int ty
 		{
 		  /* Generic attributes match, try converting them and then ask the protocol */
 		  p->debug = nc->debug;
+		  p->mrtdump = nc->mrtdump;
 		  if (p->proto->reconfigure && p->proto->reconfigure(p, nc))
 		    {
 		      DBG("\t%s: same\n", oc->name);
@@ -901,14 +904,17 @@ proto_xxable(char *pattern, int xx)
 }
 
 void
-proto_debug(char *pattern, unsigned int mask)
+proto_debug(char *pattern, int which, unsigned int mask)
 {
   int cnt = 0;
   WALK_PROTO_LIST(p)
     if (patmatch(pattern, p->name))
       {
 	cnt++;
-	p->debug = mask;
+	if (which == 0)
+	  p->debug = mask;
+	else
+	  p->mrtdump = mask;
       }
   WALK_PROTO_LIST_END;
   if (!cnt)
diff --git a/nest/protocol.h b/nest/protocol.h
index 21a1c1b..5a69b33 100644
--- a/nest/protocol.h
+++ b/nest/protocol.h
@@ -82,7 +82,8 @@ struct proto_config {
   struct proto *proto;			/* Instance we've created */
   char *name;
   char *dsc;
-  unsigned debug, preference, disabled;	/* Generic parameters */
+  u32 debug, mrtdump;			/* Debugging bitfields, both use D_* constants */
+  unsigned preference, disabled;	/* Generic parameters */
   u32 router_id;			/* Protocol specific router ID */
   struct rtable_config *table;		/* Table we're attached to */
   struct filter *in_filter, *out_filter; /* Attached filters */
@@ -125,7 +126,8 @@ struct proto {
   struct event *attn;			/* "Pay attention" event */
 
   char *name;				/* Name of this instance (== cf->name) */
-  unsigned debug;			/* Debugging flags */
+  u32 debug;				/* Debugging flags */
+  u32 mrtdump;				/* MRTDump flags */
   unsigned preference;			/* Default route preference */
   int min_scope;			/* Minimal route scope accepted */
   unsigned accept_ra_types;		/* Which types of route announcements are accepted (RA_OPTIMAL or RA_ANY) */
@@ -199,7 +201,7 @@ void proto_request_feeding(struct proto *p);
 void proto_show(struct symbol *, int);
 struct proto *proto_get_named(struct symbol *, struct protocol *);
 void proto_xxable(char *, int);
-void proto_debug(char *, unsigned int);
+void proto_debug(char *, int, unsigned int);
 
 #define XX_DISABLE	0
 #define XX_ENABLE	1
@@ -307,6 +309,13 @@ void proto_notify_state(struct proto *p, unsigned state);
 #define D_PACKETS 32		/* Packets sent/received */
 
 /*
+ *	MRTDump flags
+ */
+
+#define MD_STATES	1		/* Protocol state changes (BGP4MP_MESSAGE_AS4) */
+#define MD_MESSAGES	2		/* Protocol packets (BGP4MP_MESSAGE_AS4) */
+
+/*
  *	Known unique protocol instances as referenced by config routines
  */