Merge branch 'new' into socket2

NEWS

@@ -5,6 +5,7 @@ Version 1.2.1 (2010-02-11)
   o Adds router ID of advertising router as OSPF route attribute.
   o 'show route' command indicates primary route and shows OSPF Router ID.
   o Configurable date/time formats.
+  o Symbol names can be enclosed by '' and so include hyphen and start with number.
   o Several minor bugfixes.
 
 Version 1.2.0 (2010-01-05)

client/client.c

@@ -25,8 +25,10 @@
 #include "client/client.h"
 #include "sysdep/unix/unix.h"
 
-static char *opt_list = "s:v";
+static char *opt_list = "s:vr";
 static int verbose;
+static char *init_cmd;
+static int once;
 
 static char *server_path = PATH_CONTROL_SOCKET;
 static int server_fd;
@@ -49,7 +51,7 @@ static int num_lines, skip_input, interactive;
 static void
 usage(void)
 {
-  fprintf(stderr, "Usage: birdc [-s <control-socket>] [-v]\n");
+  fprintf(stderr, "Usage: birdc [-s <control-socket>] [-v] [-r]\n");
   exit(1);
 }
 
@@ -67,11 +69,36 @@ parse_args(int argc, char **argv)
       case 'v':
 	verbose++;
 	break;
+      case 'r':
+	init_cmd = "restrict";
+	break;
       default:
 	usage();
       }
+
+  /* If some arguments are not options, we take it as commands */
   if (optind < argc)
-    usage();
+    {
+      char *tmp;
+      int i;
+      int len = 0;
+
+      if (init_cmd)
+	usage();
+
+      for (i = optind; i < argc; i++)
+	len += strlen(argv[i]) + 1;
+
+      tmp = init_cmd = malloc(len);
+      for (i = optind; i < argc; i++)
+	{
+	  strcpy(tmp, argv[i]);
+	  tmp += strlen(tmp);
+	  *tmp++ = ' ';
+	}
+
+      once = 1;
+    }
 }
 
 /*** Input ***/
@@ -267,11 +294,29 @@ update_state(void)
   if (nstate == cstate)
     return;
 
+  if (init_cmd)
+    {
+      /* First transition - client received hello from BIRD
+	 and there is waiting initial command */
+      submit_server_command(init_cmd);
+      init_cmd = NULL;
+      return;
+    }
+
+  if (!init_cmd && once)
+    {
+      /* Initial command is finished and we want to exit */
+      cleanup();
+      exit(0);
+    }
+
   if (nstate == STATE_PROMPT)
-    if (input_initialized)
+    {
-      input_reveal();
+      if (input_initialized)
-    else
+	input_reveal();
-      input_init();
+      else
+	input_init();
+    }
 
   if (nstate != STATE_PROMPT)
     input_hide();
@@ -329,6 +374,8 @@ server_connect(void)
     die("fcntl: %m");
 }
 
+#define PRINTF(LEN, PARGS...) do { if (!skip_input) len = printf(PARGS); } while(0)
+
 static void
 server_got_reply(char *x)
 {
@@ -336,15 +383,15 @@ server_got_reply(char *x)
   int len = 0;
 
   if (*x == '+')			/* Async reply */
-    skip_input || (len = printf(">>> %s\n", x+1));
+    PRINTF(len, ">>> %s\n", x+1);
   else if (x[0] == ' ')			/* Continuation */
-    skip_input || (len = printf("%s%s\n", verbose ? "     " : "", x+1));
+    PRINTF(len, "%s%s\n", verbose ? "     " : "", x+1);
   else if (strlen(x) > 4 &&
 	   sscanf(x, "%d", &code) == 1 && code >= 0 && code < 10000 &&
 	   (x[4] == ' ' || x[4] == '-'))
     {
       if (code)
-	skip_input || (len = printf("%s\n", verbose ? x : x+5));
+	PRINTF(len, "%s\n", verbose ? x : x+5);
       if (x[4] == ' ')
       {
 	nstate = STATE_PROMPT;
@@ -353,7 +400,7 @@ server_got_reply(char *x)
       }
     }
   else
-    skip_input || (len = printf("??? <%s>\n", x));
+    PRINTF(len, "??? <%s>\n", x);
 
   if (skip_input)
     return;

conf/cf-lex.l

@@ -33,6 +33,7 @@
 
 #include "nest/bird.h"
 #include "nest/route.h"
+#include "nest/protocol.h"
 #include "filter/filter.h"
 #include "conf/conf.h"
 #include "conf/cf-parse.tab.h"

conf/confbase.Y

@@ -42,6 +42,7 @@ CF_DECLS
   void *g;
   bird_clock_t time;
   struct prefix px;
+  struct proto_spec ps;
   struct timeformat *tf;
 }
 

conf/gen_keywords.m4

@@ -23,7 +23,7 @@ m4_define(CF_DECLS, `m4_divert(-1)')
 m4_define(CF_DEFINES, `m4_divert(-1)')
 
 # Keywords are translated to C initializers
-m4_define(CF_handle_kw, `m4_divert(1){ "m4_translit($1,[[A-Z]],[[a-z]])", $1 },
+m4_define(CF_handle_kw, `m4_divert(1){ "m4_translit($1,[[A-Z]],[[a-z]])", $1, NULL },
 m4_divert(-1)')
 m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_handle_kw($1)]])')
 m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks
@@ -34,7 +34,7 @@ m4_define(CF_CLI, `CF_KEYWORDS(m4_translit($1, [[ ]], [[,]]))
 ')
 
 # Enums are translated to C initializers: use CF_ENUM(typename, prefix, values)
-m4_define(CF_enum, `m4_divert(1){ "CF_enum_prefix[[]]$1", -((CF_enum_type<<16) | CF_enum_prefix[[]]$1) },
+m4_define(CF_enum, `m4_divert(1){ "CF_enum_prefix[[]]$1", -((CF_enum_type<<16) | CF_enum_prefix[[]]$1), NULL },
 m4_divert(-1)')
 m4_define(CF_ENUM, `m4_define([[CF_enum_type]],$1)m4_define([[CF_enum_prefix]],$2)CF_iterate([[CF_enum]], [[m4_shift(m4_shift($@))]])DNL')
 
@@ -42,7 +42,7 @@ m4_define(CF_ENUM, `m4_define([[CF_enum_type]],$1)m4_define([[CF_enum_prefix]],$
 m4_m4wrap(`
 m4_divert(0)
 static struct keyword keyword_list[] = {
-m4_undivert(1){ NULL, -1 } };
+m4_undivert(1){ NULL, -1, NULL } };
 ')
 
 # As we are processing C source, we must access all M4 primitives via

configure.in

@@ -8,7 +8,6 @@ AC_CONFIG_AUX_DIR(tools)
 
 AC_ARG_ENABLE(debug,[  --enable-debug          enable internal debugging routines (default: disabled)],,enable_debug=no)
 AC_ARG_ENABLE(memcheck,[  --enable-memcheck       check memory allocations when debugging (default: enabled)],,enable_memcheck=yes)
-AC_ARG_ENABLE(warnings,[  --enable-warnings       enable extra warnings (default: disabled)],,enable_warnings=no)
 AC_ARG_ENABLE(client,[  --enable-client         enable building of BIRD client (default: enabled)],,enable_client=yes)
 AC_ARG_ENABLE(ipv6,[  --enable-ipv6           enable building of IPv6 version (default: disabled)],,enable_ipv6=no)
 AC_ARG_WITH(sysconfig,[  --with-sysconfig=FILE   use specified BIRD system configuration file])
@@ -56,23 +55,16 @@ AC_SEARCH_LIBS(clock_gettime,[c rt posix4])
 
 AC_CANONICAL_HOST
 
+AC_MSG_CHECKING([what CFLAGS should we use])
+if test "$ac_test_CFLAGS" != set ; then
+	CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wno-pointer-sign -Wno-parentheses"
+fi
+AC_MSG_RESULT($CFLAGS)
+
 AC_PROG_CC
 if test -z "$GCC" ; then
 	AC_MSG_ERROR([This program requires the GNU C Compiler.])
-	fi
-AC_MSG_CHECKING([what CFLAGS should we use])
-if test "$ac_test_CFLAGS" != set ; then
-	if test "$enable_warnings" = yes ; then
-		WARNS=" -Wmissing-prototypes -Wundef"
-	else
-		WARNS=" -Wno-unused"
-	fi
-	CFLAGS="$CFLAGS -Wall -W -Wstrict-prototypes -Wno-pointer-sign -Wno-parentheses$WARNS"
 fi
-if test "$with_sysinclude" != no -a -n "$with_sysinclude"; then
-	CPPFLAGS="$CPPFLAGS -I$with_sysinclude"
-fi
-AC_MSG_RESULT($CFLAGS)
 
 AC_PROG_CPP
 AC_PROG_INSTALL

doc/bird.conf.example

@@ -96,9 +96,9 @@ protocol static {
 #	honor neighbor;		# To whom do we agree to send the routing table
 #	honor always;
 #	honor never;
-#	passwords { password "ahoj" from 0 to 10;
+#	passwords {
-#		password "nazdar" from 10;
+#		password "nazdar";
-#	}
+#	};
 #	authentication none;
 #	import filter { print "importing"; accept; };
 #	export filter { print "exporting"; accept; };
@@ -143,6 +143,7 @@ protocol static {
 #					generate from "22-04-2003 11:00:07";
 #					accept from "17-01-2003 12:01:05";
 #				};
+#			};
 #                       authentication cryptographic;
 #		};
 #	};
@@ -163,7 +164,7 @@ protocol static {
 
 #protocol bgp {
 #	disabled;
-#	description "My BGP uplink"
+#	description "My BGP uplink";
 #	local as 65000;
 #	neighbor 62.168.0.130 as 5588;
 #	multihop 20 via 62.168.0.13;
@@ -181,17 +182,17 @@ protocol static {
 #	default bgp_med 0;	# MED value we use for comparison when none is defined
 #	default bgp_local_pref 0;	# The same for local preference
 #	source address 62.168.0.14;	# What local address we use for the TCP connection
-#	password "secret"	# Password used for MD5 authentication
+#	password "secret";	# Password used for MD5 authentication
 #	rr client;		# I am a route reflector and the neighor is my client
-#	rr cluster id 1.0.0.1	# Use this value for cluster id instead of my router id 
+#	rr cluster id 1.0.0.1;	# Use this value for cluster id instead of my router id 
 #	export where source=RTS_STATIC;
 #	export filter {
 #		if source = RTS_STATIC then {
-##			bgp_community = -empty-; bgp_community = add(bgp_community,(65000,5678));
+#			bgp_community = -empty-; bgp_community = add(bgp_community,(65000,5678));
-##			bgp_origin = 0;
+#			bgp_origin = 0;
 #			bgp_community = -empty-; bgp_community.add((65000,5678));
-##			if (65000,5678) ~ bgp_community then
+#			if (65000,5678) ~ bgp_community then
-##				bgp_community.add((0, 1));
+#				bgp_community.add((0, 1));
 #			if bgp_path ~ [= 65000 =] then
 #				bgp_path.prepend(65000);
 #			accept;

doc/bird.sgml

@@ -824,7 +824,14 @@ defined by using the <cf>defined( <m>attribute</m> )</cf> operator.
 	Network the route is talking about. Read-only. (See the chapter about routing tables.)
 
 	<tag><m/enum/ scope</tag>
-	Address scope of the network (<cf/SCOPE_HOST/ for addresses local to this host, <cf/SCOPE_LINK/ for those specific for a physical link, <cf/SCOPE_SITE/ and <cf/SCOPE_ORGANIZATION/ for private addresses, <cf/SCOPE_UNIVERSE/ for globally visible addresses).
+	The scope of the route. Possible values: <cf/SCOPE_HOST/ for
+	routes local to this host, <cf/SCOPE_LINK/ for those specific
+	for a physical link, <cf/SCOPE_SITE/ and
+	<cf/SCOPE_ORGANIZATION/ for private routes and
+	<cf/SCOPE_UNIVERSE/ for globally visible routes. This
+	attribute is not interpreted by BIRD and can be used to mark
+	routes in filters. The default value for new routes is
+	<cf/SCOPE_UNIVERSE/.
 
 	<tag><m/int/ preference</tag>
 	Preference of the route. Valid values are 0-65535. (See the chapter about routing tables.)
@@ -842,7 +849,11 @@ defined by using the <cf>defined( <m>attribute</m> )</cf> operator.
 	what protocol has told me about this route. Possible values: <cf/RTS_DUMMY/, <cf/RTS_STATIC/, <cf/RTS_INHERIT/, <cf/RTS_DEVICE/, <cf/RTS_STATIC_DEVICE/, <cf/RTS_REDIRECT/, <cf/RTS_RIP/, <cf/RTS_OSPF/, <cf/RTS_OSPF_IA/, <cf/RTS_OSPF_EXT/, <cf/RTS_BGP/, <cf/RTS_PIPE/.
 
 	<tag><m/enum/ cast</tag>
-	Route type (<cf/RTC_UNICAST/ for normal routes, <cf/RTC_BROADCAST/, <cf/RTC_MULTICAST/, <cf/RTC_ANYCAST/ for broadcast, multicast and anycast routes). Read-only.
+
+	Route type (Currently <cf/RTC_UNICAST/ for normal routes,
+	<cf/RTC_BROADCAST/, <cf/RTC_MULTICAST/, <cf/RTC_ANYCAST/ will
+	be used in the future for broadcast, multicast and anycast
+	routes). Read-only.
 
 	<tag><m/enum/ dest</tag>
 	Type of destination the packets should be sent to (<cf/RTD_ROUTER/ for forwarding to a neighboring router, <cf/RTD_NETWORK/ for routing to a directly-connected network, <cf/RTD_BLACKHOLE/ for packets to be silently discarded, <cf/RTD_UNREACHABLE/, <cf/RTD_PROHIBIT/ for packets that should be returned with ICMP host unreachable / ICMP administratively prohibited messages). Read-only.

doc/reply_codes

@@ -24,6 +24,7 @@ Reply codes of BIRD command-line interface
 0013	Status report
 0014	Route count
 0015	Reloading
+0016	Access restricted
 
 1000	BIRD version
 1001	Interface list
@@ -51,6 +52,7 @@ Reply codes of BIRD command-line interface
 8004	Stopped due to reconfiguration
 8005	Protocol is down => cannot dump
 8006	Reload failed
+8007	Access denied
 
 9000	Command too long
 9001	Parse error

filter/config.Y

@@ -273,16 +273,17 @@ fprefix_set:
  ;
 
 switch_body: /* EMPTY */ { $$ = NULL; }
- | set_item ':' cmds switch_body {
+ | switch_body set_item ':' cmds  {
-     $$ = $1;
+     $$ = $2;
-     $$->data = $3;
+     $$->data = $4;
-     $$->left = $4;
+     $$->left = $1;
    }
- | ELSE ':' cmds {
+ | switch_body ELSE ':' cmds {
      $$ = f_new_tree(); 
      $$->from.type = T_VOID; 
      $$->to.type = T_VOID;
-     $$->data = $3;
+     $$->data = $4;
+     $$->left = $1;
    }
  ;
 

filter/filter.c

@@ -164,6 +164,11 @@ val_compare(struct f_val v1, struct f_val v2)
   }
 }
 
+int 
+tree_compare(const void *p1, const void *p2)
+{
+  return val_compare((* (struct f_tree **) p1)->from, (* (struct f_tree **) p2)->from);
+}
 
 void
 f_prefix_get_bounds(struct f_prefix *px, int *l, int *h)

filter/filter.h

@@ -91,6 +91,7 @@ void f_prefix_get_bounds(struct f_prefix *px, int *l, int *h);
 
 void f_prefix_get_bounds(struct f_prefix *px, int *l, int *h);
 int val_compare(struct f_val v1, struct f_val v2);
+int tree_compare(const void *p1, const void *p2);
 void val_print(struct f_val v);
 
 #define F_NOP 0

filter/test.conf

@@ -131,6 +131,9 @@ prefix px;
 ip p;
 pair pp;
 int set is;
+int set is1;
+int set is2;
+int set is3;
 prefix set pxs;
 string s;
 {
@@ -156,6 +159,18 @@ string s;
 	print "  must be true: ", defined(1), ",", defined(1.2.3.4), ",", 1 != 2, ",", 1 <= 2;
 	print "  data types: must be false: ", 1 ~ [ 2, 3, 4 ], ",", 5 ~ is, ",", 1.2.3.4 ~ [ 1.2.3.3, 1.2.3.5 ], ",", (1,2) > (2,2), ",", (1,1) > (1,1), ",", 1.0.0.0/9 ~ [ 1.0.0.0/8- ], ",", 1.2.0.0/17 ~ [ 1.0.0.0/8{ 15 , 16 } ], ",", true && false;
 
+	is1 = [2, 3, 5, 8, 11, 15, 17, 19];
+	is2 = [19, 17, 15, 11, 8, 5, 3, 2];
+	is3 = [5, 17, 2, 11, 8, 15, 3, 19];
+
+	print "  must be true:  ", 2 ~ is1, "  ", 2 ~ is2, "  ", 2 ~ is3;
+	print "  must be false: ", 4 ~ is1, " ", 4 ~ is2, " ", 4 ~ is3;
+	print "  must be false: ", 10 ~ is1, " ", 10 ~ is2, " ", 10 ~ is3;
+	print "  must be true:  ", 15 ~ is1, "  ", 15 ~ is2, "  ", 15 ~ is3;
+	print "  must be false: ", 18 ~ is1, " ", 18 ~ is2, " ", 18 ~ is3;
+	print "  must be true:  ", 19 ~ is1, "  ", 19 ~ is2, "  ", 19 ~ is3;
+	print "  must be false: ", 20 ~ is1, " ", 20 ~ is2, " ", 20 ~ is3;
+
 	px = 1.2.0.0/18;
 	print "Testing prefixes: 1.2.0.0/18 = ", px;
 	print "  must be true:  ",	192.168.0.0/16 ~ 192.168.0.0/16, " ", 192.168.0.0/17 ~ 192.168.0.0/16, " ", 192.168.254.0/24 ~ 192.168.0.0/16;

filter/tree.c

@@ -6,61 +6,11 @@
  *	Can be freely distributed and used under the terms of the GNU GPL.
  */
 
+#include "lib/alloca.h"
 #include "nest/bird.h"
 #include "conf/conf.h"
 #include "filter/filter.h"
 
-/*
- * find_nth - finds n-th element in linked list. Don't be confused by types, it is really a linked list.
- */
-static struct f_tree *
-find_nth(struct f_tree *from, int nth)
-{
-  struct f_tree *pivot;
-  int lcount = 0, rcount = 0;
-  struct f_tree *left, *right, *next;
-
-  pivot = from;
-
-  left = right = NULL;
-  next = from->right;
-  while (from = next) {
-    next = from->right;
-    if (val_compare(pivot->from, from->from)==1) {
-      from->right = left;
-      left = from;
-      lcount++;
-    } else {
-      from->right = right;
-      right = from;
-      rcount++;
-    }
-  }
-  if (lcount == nth) 
-    return pivot;
-  if (lcount < nth)
-    return find_nth(right, nth-lcount-1);
-  return find_nth(left, nth);
-}
-
-/*
- * find_median - Gets list linked by @left, finds its median, trashes pointers in @right.
- */
-static struct f_tree *
-find_median(struct f_tree *from)
-{
-  struct f_tree *t = from;
-  int cnt = 0;
-
-  if (!from)
-    return NULL;
-  do {
-    t->right = t->left;
-    cnt++;
-  } while (t = t->left);
-  return find_nth(from, cnt/2);
-}
-
 /**
  * find_tree
  * @t: tree to search in
@@ -87,6 +37,23 @@ find_tree(struct f_tree *t, struct f_val val)
     return find_tree(t->left, val);
 }
 
+static struct f_tree *
+build_tree_rec(struct f_tree **buf, int l, int h)
+{
+  struct f_tree *n;
+  int pos;
+
+  if (l >= h)
+    return NULL;
+
+  pos = (l+h)/2;
+  n = buf[pos];
+  n->left = build_tree_rec(buf, l, pos);
+  n->right = build_tree_rec(buf, pos+1, h);
+  return n;
+}
+
+
 /**
  * build_tree
  * @from: degenerated tree (linked by @tree->left) to be transformed into form suitable for find_tree()
@@ -96,29 +63,35 @@ find_tree(struct f_tree *t, struct f_val val)
 struct f_tree *
 build_tree(struct f_tree *from)
 {
-  struct f_tree *median, *t = from, *next, *left = NULL, *right = NULL;
+  struct f_tree *tmp, *root;
+  struct f_tree **buf;
+  int len, i;
 
-  median = find_median(from);
+  if (from == NULL)
-  if (!median)
     return NULL;
 
-  do {
+  len = 0;
-    next = t->left;
+  for (tmp = from; tmp != NULL; tmp = tmp->left)
-    if (t == median)
+    len++;
-      continue;
 
-    if (val_compare(median->from, t->from)==1) {
+  if (len <= 1024)
-      t->left = left;
+    buf = alloca(len * sizeof(struct f_tree *));
-      left = t;
+  else
-    } else {
+    buf = malloc(len * sizeof(struct f_tree *));
-      t->left = right;
-      right = t;
-    }
-  } while(t = next);
 
-  median->left = build_tree(left);
+  /* Convert a degenerated tree into an sorted array */
-  median->right = build_tree(right);
+  i = 0;
-  return median;
+  for (tmp = from; tmp != NULL; tmp = tmp->left)
+    buf[i++] = tmp;
+
+  qsort(buf, len, sizeof(struct f_tree *), tree_compare);
+
+  root = build_tree_rec(buf, 0, len);
+
+  if (len > 1024)
+    free(buf);
+
+  return root;
 }
 
 struct f_tree *

lib/event.c

@@ -49,7 +49,8 @@ static struct resclass ev_class = {
   "Event",
   sizeof(event),
   (void (*)(resource *)) ev_postpone,
-  ev_dump
+  ev_dump,
+  NULL
 };
 
 /**

lib/ip.h

@@ -46,10 +46,14 @@ char *ip_scope_text(unsigned);
 
 struct prefix {
   ip_addr addr;
-  int len;
+  unsigned int len;
 };
 
 #define ip_is_prefix(a,l) (!ipa_nonzero(ipa_and(a, ipa_not(ipa_mkmask(l)))))
+#define ipa_zero(x) (!ipa_nonzero(x))
+
+static inline int ipa_classify_net(ip_addr a)
+{ return ipa_zero(a) ? (IADDR_HOST | SCOPE_UNIVERSE) : ipa_classify(a); }
 
 /*
  *	Conversions between internal and string representation

lib/ipv4.h

@@ -72,7 +72,7 @@ int ipv4_classify(u32);
 u32 ipv4_class_mask(u32);
 byte *ipv4_skip_header(byte *, int *);
 
-static inline int ipv4_has_link_scope(u32 a)
+static inline int ipv4_has_link_scope(u32 a UNUSED)
 {
   return 0;
 }

lib/socket.h

@@ -9,6 +9,8 @@
 #ifndef _BIRD_SOCKET_H_
 #define _BIRD_SOCKET_H_
 
+#include <errno.h>
+
 #include "lib/resource.h"
 
 typedef struct birdsock {
@@ -67,6 +69,8 @@ int sk_leave_group(sock *s, ip_addr maddr);
 int sk_set_ipv6_checksum(sock *s, int offset);
 #endif
 
+int sk_set_broadcast(sock *s, int enable);
+
 static inline int
 sk_send_buffer_empty(sock *sk)
 {

nest/a-path.c

@@ -385,7 +385,7 @@ as_path_match(struct adata *path, struct f_path_mask *mask)
   struct pm_pos pos[2048 + 1];
   int plen = parse_path(path, pos);
   int l, h, i, nh, nl;
-  u32 val;
+  u32 val = 0;
 
   /* l and h are bound of interval of positions where
      are marked states */
@@ -417,7 +417,7 @@ as_path_match(struct adata *path, struct f_path_mask *mask)
 	  goto step;
 	case PM_QUESTION:
 	step:
-	  nh = -1;
+	  nh = nl = -1;
 	  for (i = h; i >= l; i--)
 	    if (pos[i].mark)
 	      {

nest/cli.c

@@ -357,8 +357,8 @@ cli_echo(unsigned int class, byte *msg)
 	free = (c->ring_end - c->ring_buf) - (c->ring_write - c->ring_read + 1);
       else
 	free = c->ring_read - c->ring_write - 1;
-      if (len > free ||
+      if ((len > free) ||
-	  free < c->log_threshold && class < (unsigned) L_INFO[0])
+	  (free < c->log_threshold && class < (unsigned) L_INFO[0]))
 	{
 	  c->ring_overflow++;
 	  continue;

nest/cli.h

@@ -33,6 +33,7 @@ typedef struct cli {
   void (*cleanup)(struct cli *c);
   void *rover;				/* Private to continuation routine */
   int last_reply;
+  int restricted;			/* CLI is restricted to read-only commands */
   struct linpool *parser_pool;		/* Pool used during parsing */
   byte *ring_buf;			/* Ring buffer for asynchronous messages */
   byte *ring_end, *ring_read, *ring_write;	/* Pointers to the ring buffer */
@@ -60,6 +61,14 @@ void cli_kick(cli *);
 void cli_written(cli *);
 void cli_echo(unsigned int class, byte *msg);
 
+static inline int cli_access_restricted(void)
+{
+  if (this_cli && this_cli->restricted)
+    return (cli_printf(this_cli, 8007, "Access denied"), 1);
+  else
+    return 0;
+}
+
 /* Functions provided by sysdep layer */
 
 void cli_write_trigger(cli *);

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, MRTDUMP, MESSAGES)
+CF_KEYWORDS(RELOAD, IN, OUT, MRTDUMP, MESSAGES, RESTRICT)
 
 CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
 	RIP, OSPF, OSPF_IA, OSPF_EXT1, OSPF_EXT2, BGP, PIPE)
@@ -59,7 +59,7 @@ CF_ENUM(T_ENUM_RTD, RTD_, ROUTER, DEVICE, BLACKHOLE, UNREACHABLE, PROHIBIT)
 %type <s> optsym
 %type <ra> r_args
 %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
+%type <ps> proto_patt proto_patt2
 
 CF_GRAMMAR
 
@@ -324,11 +324,11 @@ CF_CLI_HELP(SHOW, ..., [[Show status information]])
 CF_CLI(SHOW STATUS,,, [[Show router status]])
 { cmd_show_status(); } ;
 
-CF_CLI(SHOW PROTOCOLS, optsym, [<name>], [[Show routing protocols]])
+CF_CLI(SHOW PROTOCOLS, proto_patt2, [<protocol> | \"<pattern>\"], [[Show routing protocols]])
-{ proto_show($3, 0); } ;
+{ proto_apply_cmd($3, proto_cmd_show, 0, 0); } ;
 
-CF_CLI(SHOW PROTOCOLS ALL, optsym, [<name>], [[Show routing protocol details]])
+CF_CLI(SHOW PROTOCOLS ALL, proto_patt2, [<protocol> | \"<pattern>\"], [[Show routing protocol details]])
-{ proto_show($4, 1); } ;
+{ proto_apply_cmd($4, proto_cmd_show, 0, 1); } ;
 
 optsym:
    SYM
@@ -459,34 +459,42 @@ echo_size:
  ;
 
 CF_CLI(DISABLE, proto_patt, <protocol> | \"<pattern>\" | all, [[Disable protocol]])
-{ proto_xxable($2, XX_DISABLE); } ;
+{ proto_apply_cmd($2, proto_cmd_disable, 1, 0); } ;
 CF_CLI(ENABLE, proto_patt, <protocol> | \"<pattern>\" | all, [[Enable protocol]])
-{ proto_xxable($2, XX_ENABLE); } ;
+{ proto_apply_cmd($2, proto_cmd_enable, 1, 0); } ;
 CF_CLI(RESTART, proto_patt, <protocol> | \"<pattern>\" | all, [[Restart protocol]])
-{ proto_xxable($2, XX_RESTART); } ;
+{ proto_apply_cmd($2, proto_cmd_restart, 1, 0); } ;
 CF_CLI(RELOAD, proto_patt, <protocol> | \"<pattern>\" | all, [[Reload protocol]])
-{ proto_xxable($2, XX_RELOAD); } ;
+{ proto_apply_cmd($2, proto_cmd_reload, 1, CMD_RELOAD); } ;
 CF_CLI(RELOAD IN, proto_patt, <protocol> | \"<pattern>\" | all, [[Reload protocol (just imported routes)]])
-{ proto_xxable($3, XX_RELOAD_IN); } ;
+{ proto_apply_cmd($3, proto_cmd_reload, 1, CMD_RELOAD_IN); } ;
 CF_CLI(RELOAD OUT, proto_patt, <protocol> | \"<pattern>\" | all, [[Reload protocol (just exported routes)]])
-{ proto_xxable($3, XX_RELOAD_OUT); } ;
+{ proto_apply_cmd($3, proto_cmd_reload, 1, CMD_RELOAD_OUT); } ;
 
 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 | interfaces | events | packets }), [[Control protocol debugging via BIRD logs]])
-{ proto_debug($2, 0, $3); }
+{ proto_apply_cmd($2, proto_cmd_debug, 1, $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_apply_cmd($2, proto_cmd_mrtdump, 1, $3); } ;
- ;
+
+CF_CLI(RESTRICT,,,[[Restrict current CLI session to safe commands]])
+{ this_cli->restricted = 1; cli_msg(16, "Access restricted"); } ;
 
 proto_patt:
-   SYM { $$ = $1->name; }
+   SYM  { $$.ptr = $1; $$.patt = 0; }
- | ALL { $$ = "*"; }
+ | ALL  { $$.ptr = NULL; $$.patt = 1; }
- | TEXT
+ | TEXT { $$.ptr = $1; $$.patt = 1; }
  ;
 
+proto_patt2:
+   SYM  { $$.ptr = $1; $$.patt = 0; }
+ |      { $$.ptr = NULL; $$.patt = 1; }
+ | TEXT { $$.ptr = $1; $$.patt = 1; }
+ ;
+
+
 CF_CODE
 
 CF_END

nest/iface.c

@@ -336,6 +336,15 @@ if_end_update(void)
     }
 }
 
+void
+if_flush_ifaces(struct proto *p)
+{
+  if (p->debug & D_EVENTS)
+    log(L_TRACE "%s: Flushing interfaces", p->name);
+  if_start_update();
+  if_end_update();
+}
+
 /**
  * if_feed_baby - advertise interfaces to a new protocol
  * @p: protocol to feed

nest/iface.h

@@ -75,8 +75,9 @@ struct iface *if_update(struct iface *);
 struct ifa *ifa_update(struct ifa *);
 void ifa_delete(struct ifa *);
 void if_start_update(void);
-void if_end_update(void);
 void if_end_partial_update(struct iface *);
+void if_end_update(void);
+void if_flush_ifaces(struct proto *p);
 void if_feed_baby(struct proto *);
 struct iface *if_find_by_index(unsigned);
 struct iface *if_find_by_name(char *);
@@ -106,6 +107,7 @@ typedef struct neighbor {
 } neighbor;
 
 #define NEF_STICKY 1
+#define NEF_ONLINK 2
 
 neighbor *neigh_find(struct proto *, ip_addr *, unsigned flags);
 neighbor *neigh_find2(struct proto *p, ip_addr *a, struct iface *ifa, unsigned flags);

nest/locks.c

@@ -97,7 +97,8 @@ static struct resclass olock_class = {
   "ObjLock",
   sizeof(struct object_lock),
   olock_free,
-  olock_dump
+  olock_dump,
+  NULL
 };
 
 /**

nest/neighbor.c

@@ -112,12 +112,12 @@ neighbor *
 neigh_find2(struct proto *p, ip_addr *a, struct iface *ifa, unsigned flags)
 {
   neighbor *n;
-  int class, scope = SCOPE_HOST;
+  int class, scope = -1;       ;
   unsigned int h = neigh_hash(p, a);
   struct iface *i;
 
   WALK_LIST(n, neigh_hash_table[h])	/* Search the cache */
-    if (n->proto == p && ipa_equal(*a, n->addr))
+    if (n->proto == p && ipa_equal(*a, n->addr) && (!ifa || (ifa == n->iface)))
       return n;
 
   class = ipa_classify(*a);
@@ -129,7 +129,12 @@ neigh_find2(struct proto *p, ip_addr *a, struct iface *ifa, unsigned flags)
     return NULL;			/* Bad scope or a somecast */
 
   if (ifa)
-    scope = if_connected(a, ifa);
+    {
+      scope = if_connected(a, ifa);
+
+      if ((scope < 0) && (flags & NEF_ONLINK))
+	scope = class & IADDR_SCOPE_MASK;
+    }
   else
     WALK_LIST(i, iface_list)
       if ((scope = if_connected(a, i)) >= 0)
@@ -138,22 +143,28 @@ neigh_find2(struct proto *p, ip_addr *a, struct iface *ifa, unsigned flags)
 	  break;
 	}
 
-  if (!ifa && !(flags & NEF_STICKY))
+  /* scope < 0 means i don't know neighbor */
+  /* scope >= 0 implies ifa != NULL */
+
+  if ((scope < 0) && !(flags & NEF_STICKY))
     return NULL;
 
   n = sl_alloc(neigh_slab);
   n->addr = *a;
-  n->iface = ifa;
+  if (scope >= 0)
-  if (ifa)
     {
       add_tail(&neigh_hash_table[h], &n->n);
       add_tail(&ifa->neighbors, &n->if_n);
     }
   else
     {
+      /* sticky flag does not work for link-local neighbors;
+	 fortunately, we don't use this combination */
       add_tail(&sticky_neigh_list, &n->n);
+      ifa = NULL;
       scope = 0;
     }
+  n->iface = ifa;
   n->proto = p;
   n->data = NULL;
   n->aux = 0;

nest/proto-hooks.c

@@ -178,13 +178,14 @@ void ifa_notify(struct proto *p, unsigned flags, struct ifa *a)
 /**
  * rt_notify - notify instance about routing table change
  * @p: protocol instance
+ * @table: a routing table 
  * @net: a network entry
  * @new: new route for the network
  * @old: old route for the network
  * @attrs: extended attributes associated with the @new entry
  *
  * The rt_notify() hook is called to inform the protocol instance about
- * changes in the routing table it's connected to, that is a route @old
+ * changes in the connected routing table @table, that is a route @old
  * belonging to network @net being replaced by a new route @new with
  * extended attributes @attrs. Either @new or @old or both can be %NULL
  * if the corresponding route doesn't exist.

nest/proto.c

@@ -25,12 +25,6 @@ static pool *proto_pool;
 static list protocol_list;
 static list proto_list;
 
-#define WALK_PROTO_LIST(p) do {							\
-	node *nn;								\
-	WALK_LIST(nn, proto_list) {						\
-		struct proto *p = SKIP_BACK(struct proto, glob_node, nn);
-#define WALK_PROTO_LIST_END } } while(0)
-
 #define PD(pr, msg, args...) do { if (pr->debug & D_STATES) { log(L_TRACE "%s: " msg, pr->name , ## args); } } while(0)
 
 list active_proto_list;
@@ -57,7 +51,7 @@ proto_enqueue(list *l, struct proto *p)
 static void
 proto_relink(struct proto *p)
 {
-  list *l;
+  list *l = NULL;
 
   if (p->debug & D_STATES)
     {
@@ -119,7 +113,6 @@ proto_new(struct proto_config *c, unsigned size)
   p->table = c->table->table;
   p->in_filter = c->in_filter;
   p->out_filter = c->out_filter;
-  p->min_scope = SCOPE_SITE;
   p->hash_key = random_u32();
   c->proto = p;
   return p;
@@ -583,6 +576,12 @@ proto_fell_down(struct proto *p)
 
   bzero(&p->stats, sizeof(struct proto_stats));
   rt_unlock_table(p->table);
+
+#ifdef CONFIG_PIPE
+  if (proto_is_pipe(p))
+    rt_unlock_table(pipe_get_peer_table(p));
+#endif
+
   proto_rethink_goal(p);
 }
 
@@ -741,6 +740,8 @@ proto_notify_state(struct proto *p, unsigned ps)
     }
 }
 
+extern struct protocol proto_unix_iface;
+
 static void
 proto_flush_all(void *unused UNUSED)
 {
@@ -749,6 +750,11 @@ proto_flush_all(void *unused UNUSED)
   rt_prune_all();
   while ((p = HEAD(flush_proto_list))->n.next)
     {
+      /* This will flush interfaces in the same manner
+	 like rt_prune_all() flushes routes */
+      if (p->proto == &proto_unix_iface)
+	if_flush_ifaces(p);
+
       DBG("Flushing protocol %s\n", p->name);
       p->core_state = FS_HUNGRY;
       proto_relink(p);
@@ -781,10 +787,75 @@ proto_state_name(struct proto *p)
 }
 
 static void
-proto_do_show(struct proto *p, int verbose)
+proto_do_show_stats(struct proto *p)
+{
+  struct proto_stats *s = &p->stats;
+  cli_msg(-1006, "  Routes:         %u imported, %u exported, %u preferred", 
+	  s->imp_routes, s->exp_routes, s->pref_routes);
+  cli_msg(-1006, "  Route change stats:     received   rejected   filtered    ignored   accepted");
+  cli_msg(-1006, "    Import updates:     %10u %10u %10u %10u %10u",
+	  s->imp_updates_received, s->imp_updates_invalid,
+	  s->imp_updates_filtered, s->imp_updates_ignored,
+	  s->imp_updates_accepted);
+  cli_msg(-1006, "    Import withdraws:   %10u %10u        --- %10u %10u",
+	  s->imp_withdraws_received, s->imp_withdraws_invalid,
+	  s->imp_withdraws_ignored, s->imp_withdraws_accepted);
+  cli_msg(-1006, "    Export updates:     %10u %10u %10u        --- %10u",
+	  s->exp_updates_received, s->exp_updates_rejected,
+	  s->exp_updates_filtered, s->exp_updates_accepted);
+  cli_msg(-1006, "    Export withdraws:   %10u        ---        ---        --- %10u",
+	  s->exp_withdraws_received, s->exp_withdraws_accepted);
+}
+
+static void
+proto_do_show_pipe_stats(struct proto *p)
+{
+  struct proto_stats *s1 = &p->stats;
+  struct proto_stats *s2 = pipe_get_peer_stats(p);
+
+  /*
+   * Pipe stats (as anything related to pipes) are a bit tricky. There
+   * are two sets of stats - s1 for routes going from the primary
+   * routing table to the secondary routing table ('exported' from the
+   * user point of view) and s2 for routes going in the other
+   * direction ('imported' from the user point of view).
+   *
+   * Each route going through a pipe is, technically, first exported
+   * to the pipe and then imported from that pipe and such operations
+   * are counted in one set of stats according to the direction of the
+   * route propagation. Filtering is done just in the first part
+   * (export). Therefore, we compose stats for one directon for one
+   * user direction from both import and export stats, skipping
+   * immediate and irrelevant steps (exp_updates_accepted,
+   * imp_updates_received, imp_updates_filtered, ...)
+   */
+
+  cli_msg(-1006, "  Routes:         %u imported, %u exported", 
+	  s2->imp_routes, s1->imp_routes);
+  cli_msg(-1006, "  Route change stats:     received   rejected   filtered    ignored   accepted");
+  cli_msg(-1006, "    Import updates:     %10u %10u %10u %10u %10u",
+	  s2->exp_updates_received, s2->exp_updates_rejected + s2->imp_updates_invalid,
+	  s2->exp_updates_filtered, s2->imp_updates_ignored, s2->imp_updates_accepted);
+  cli_msg(-1006, "    Import withdraws:   %10u %10u        --- %10u %10u",
+	  s2->exp_withdraws_received, s2->imp_withdraws_invalid,
+	  s2->imp_withdraws_ignored, s2->imp_withdraws_accepted);
+  cli_msg(-1006, "    Export updates:     %10u %10u %10u %10u %10u",
+	  s1->exp_updates_received, s1->exp_updates_rejected + s1->imp_updates_invalid,
+	  s1->exp_updates_filtered, s1->imp_updates_ignored, s1->imp_updates_accepted);
+  cli_msg(-1006, "    Export withdraws:   %10u %10u        --- %10u %10u",
+	  s1->exp_withdraws_received, s1->imp_withdraws_invalid,
+	  s1->imp_withdraws_ignored, s1->imp_withdraws_accepted);
+}
+
+void
+proto_cmd_show(struct proto *p, unsigned int verbose, int cnt)
 {
   byte buf[256], tbuf[TM_DATETIME_BUFFER_SIZE];
 
+  /* First protocol - show header */
+  if (!cnt)
+    cli_msg(-2002, "name     proto    table    state  since       info");
+
   buf[0] = 0;
   if (p->proto->get_status)
     p->proto->get_status(p, buf);
@@ -806,21 +877,12 @@ proto_do_show(struct proto *p, int verbose)
 
       if (p->proto_state != PS_DOWN)
 	{
-	  cli_msg(-1006, "  Routes:         %u imported, %u exported, %u preferred", 
+#ifdef CONFIG_PIPE
-		  p->stats.imp_routes, p->stats.exp_routes, p->stats.pref_routes);
+	  if (proto_is_pipe(p))
-	  cli_msg(-1006, "  Route change stats:     received   rejected   filtered    ignored   accepted");
+	    proto_do_show_pipe_stats(p);
-	  cli_msg(-1006, "    Import updates:     %10u %10u %10u %10u %10u",
+	  else
-		  p->stats.imp_updates_received, p->stats.imp_updates_invalid,
+#endif
-		  p->stats.imp_updates_filtered, p->stats.imp_updates_ignored,
+	    proto_do_show_stats(p);
-		  p->stats.imp_updates_accepted);
-	  cli_msg(-1006, "    Import withdraws:   %10u %10u        --- %10u %10u",
-		  p->stats.imp_withdraws_received, p->stats.imp_withdraws_invalid,
-		  p->stats.imp_withdraws_ignored, p->stats.imp_withdraws_accepted);
-	  cli_msg(-1006, "    Export updates:     %10u %10u %10u        --- %10u",
-		  p->stats.exp_updates_received, p->stats.exp_updates_rejected,
-		  p->stats.exp_updates_filtered, p->stats.exp_updates_accepted);
-	  cli_msg(-1006, "    Export withdraws:   %10u        ---        ---        --- %10u",
-		  p->stats.exp_withdraws_received, p->stats.exp_withdraws_accepted);
 	}
 
       cli_msg(-1006, "");
@@ -828,25 +890,140 @@ proto_do_show(struct proto *p, int verbose)
 }
 
 void
-proto_show(struct symbol *s, int verbose)
+proto_cmd_disable(struct proto *p, unsigned int arg UNUSED, int cnt UNUSED)
 {
-  if (s && s->class != SYM_PROTO)
+  if (p->disabled)
+    {
+      cli_msg(-8, "%s: already disabled", p->name);
+      return;
+    }
+
+  log(L_INFO "Disabling protocol %s", p->name);
+  p->disabled = 1;
+  proto_rethink_goal(p);
+  cli_msg(-9, "%s: disabled", p->name);
+}
+
+void
+proto_cmd_enable(struct proto *p, unsigned int arg UNUSED, int cnt UNUSED)
+{
+  if (!p->disabled)
+    {
+      cli_msg(-10, "%s: already enabled", p->name);
+      return;
+    }
+
+  log(L_INFO "Enabling protocol %s", p->name);
+  p->disabled = 0;
+  proto_rethink_goal(p);
+  cli_msg(-11, "%s: enabled", p->name);
+}
+
+void
+proto_cmd_restart(struct proto *p, unsigned int arg UNUSED, int cnt UNUSED)
+{
+  if (p->disabled)
+    {
+      cli_msg(-8, "%s: already disabled", p->name);
+      return;
+    }
+
+  log(L_INFO "Restarting protocol %s", p->name);
+  p->disabled = 1;
+  proto_rethink_goal(p);
+  p->disabled = 0;
+  proto_rethink_goal(p);
+  cli_msg(-12, "%s: restarted", p->name);
+}
+
+void
+proto_cmd_reload(struct proto *p, unsigned int dir, int cnt UNUSED)
+{
+  if (p->disabled)
+    {
+      cli_msg(-8, "%s: already disabled", p->name);
+      return;
+    }
+
+  /* If the protocol in not UP, it has no routes */
+  if (p->proto_state != PS_UP)
+    return;
+
+  log(L_INFO "Reloading protocol %s", p->name);
+
+  /* re-importing routes */
+  if (dir != CMD_RELOAD_OUT)
+    if (! (p->reload_routes && p->reload_routes(p)))
+      {
+	cli_msg(-8006, "%s: reload failed", p->name);
+	return;
+      }
+		 
+  /* re-exporting routes */
+  if (dir != CMD_RELOAD_IN)
+    proto_request_feeding(p);
+
+  cli_msg(-15, "%s: reloading", p->name);
+}
+
+void
+proto_cmd_debug(struct proto *p, unsigned int mask, int cnt UNUSED)
+{
+  p->debug = mask;
+}
+
+void
+proto_cmd_mrtdump(struct proto *p, unsigned int mask, int cnt UNUSED)
+{
+  p->mrtdump = mask;
+}
+
+static void
+proto_apply_cmd_symbol(struct symbol *s, void (* cmd)(struct proto *, unsigned int, int), unsigned int arg)
+{
+  if (s->class != SYM_PROTO)
     {
       cli_msg(9002, "%s is not a protocol", s->name);
       return;
     }
-  cli_msg(-2002, "name     proto    table    state  since       info");
+
-  if (s)
+  cmd(((struct proto_config *)s->def)->proto, arg, 0);
-    proto_do_show(((struct proto_config *)s->def)->proto, verbose);
-  else
-    {
-      WALK_PROTO_LIST(p)
-	proto_do_show(p, verbose);
-      WALK_PROTO_LIST_END;
-    }
   cli_msg(0, "");
 }
 
+static void
+proto_apply_cmd_patt(char *patt, void (* cmd)(struct proto *, unsigned int, int), unsigned int arg)
+{
+  int cnt = 0;
+
+  node *nn;
+  WALK_LIST(nn, proto_list)
+    {
+      struct proto *p = SKIP_BACK(struct proto, glob_node, nn);
+
+      if (!patt || patmatch(patt, p->name))
+	cmd(p, arg, cnt++);
+    }
+
+  if (!cnt)
+    cli_msg(8003, "No protocols match");
+  else
+    cli_msg(0, "");
+}
+
+void
+proto_apply_cmd(struct proto_spec ps, void (* cmd)(struct proto *, unsigned int, int),
+		int restricted, unsigned int arg)
+{
+  if (restricted && cli_access_restricted())
+    return;
+
+  if (ps.patt)
+    proto_apply_cmd_patt(ps.ptr, cmd, arg);
+  else
+    proto_apply_cmd_symbol(ps.ptr, cmd, arg);
+}
+
 struct proto *
 proto_get_named(struct symbol *sym, struct protocol *pr)
 {
@@ -875,112 +1052,3 @@ proto_get_named(struct symbol *sym, struct protocol *pr)
     }
   return p;
 }
-
-void
-proto_xxable(char *pattern, int xx)
-{
-  int cnt = 0;
-  WALK_PROTO_LIST(p)
-    if (patmatch(pattern, p->name))
-      {
-	cnt++;
-	switch (xx)
-	  {
-	  case XX_DISABLE:
-	    if (p->disabled)
-	      cli_msg(-8, "%s: already disabled", p->name);
-	    else
-	      {
-		log(L_INFO "Disabling protocol %s", p->name);
-		p->disabled = 1;
-		proto_rethink_goal(p);
-		cli_msg(-9, "%s: disabled", p->name);
-	      }
-	    break;
-
-	  case XX_ENABLE:
-	    if (!p->disabled)
-	      cli_msg(-10, "%s: already enabled", p->name);
-	    else
-	      {
-		log(L_INFO "Enabling protocol %s", p->name);
-		p->disabled = 0;
-		proto_rethink_goal(p);
-		cli_msg(-11, "%s: enabled", p->name);
-	      }
-	    break;
-
-	  case XX_RESTART:
-	    if (p->disabled)
-	      cli_msg(-8, "%s: already disabled", p->name);
-	    else
-	      {
-		log(L_INFO "Restarting protocol %s", p->name);
-		p->disabled = 1;
-		proto_rethink_goal(p);
-		p->disabled = 0;
-		proto_rethink_goal(p);
-		cli_msg(-12, "%s: restarted", p->name);
-	      }
-	    break;
-
-	  case XX_RELOAD:
-	  case XX_RELOAD_IN:
-	  case XX_RELOAD_OUT:
-	    if (p->disabled)
-	      {
-		cli_msg(-8, "%s: already disabled", p->name);
-		break;
-	      }
-
-	    /* If the protocol in not UP, it has no routes */
-	    if (p->proto_state != PS_UP)
-	      break;
-
-	    log(L_INFO "Reloading protocol %s", p->name);
-
-	    /* re-importing routes */
-	    if (xx != XX_RELOAD_OUT)
-	      if (! (p->reload_routes && p->reload_routes(p)))
-		{
-		  cli_msg(-8006, "%s: reload failed", p->name);
-		  break;
-		}
-		 
-	    /* re-exporting routes */
-	    if (xx != XX_RELOAD_IN)
-	      proto_request_feeding(p);
-
-	    cli_msg(-15, "%s: reloading", p->name);
-	    break;
-
-	  default:
-	    ASSERT(0);
-	  }
-      }
-  WALK_PROTO_LIST_END;
-  if (!cnt)
-    cli_msg(8003, "No protocols match");
-  else
-    cli_msg(0, "");
-}
-
-void
-proto_debug(char *pattern, int which, unsigned int mask)
-{
-  int cnt = 0;
-  WALK_PROTO_LIST(p)
-    if (patmatch(pattern, p->name))
-      {
-	cnt++;
-	if (which == 0)
-	  p->debug = mask;
-	else
-	  p->mrtdump = mask;
-      }
-  WALK_PROTO_LIST_END;
-  if (!cnt)
-    cli_msg(8003, "No protocols match");
-  else
-    cli_msg(0, "");
-}

nest/protocol.h

@@ -16,6 +16,7 @@
 
 struct iface;
 struct ifa;
+struct rtable;
 struct rte;
 struct neighbor;
 struct rta;
@@ -129,7 +130,6 @@ struct proto {
   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) */
   unsigned disabled;			/* Manually disabled */
   unsigned proto_state;			/* Protocol state machine (see below) */
@@ -162,7 +162,7 @@ struct proto {
 
   void (*if_notify)(struct proto *, unsigned flags, struct iface *i);
   void (*ifa_notify)(struct proto *, unsigned flags, struct ifa *a);
-  void (*rt_notify)(struct proto *, struct network *net, struct rte *new, struct rte *old, struct ea_list *attrs);
+  void (*rt_notify)(struct proto *, struct rtable *table, struct network *net, struct rte *new, struct rte *old, struct ea_list *attrs);
   void (*neigh_notify)(struct neighbor *neigh);
   struct ea_list *(*make_tmp_attrs)(struct rte *rt, struct linpool *pool);
   void (*store_tmp_attrs)(struct rte *rt, struct ea_list *attrs);
@@ -194,21 +194,30 @@ struct proto {
   /* Hic sunt protocol-specific data */
 };
 
+struct proto_spec {
+  void *ptr;
+  int patt;
+};
+
+
 void *proto_new(struct proto_config *, unsigned size);
 void *proto_config_new(struct protocol *, unsigned size);
-
 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 *, int, unsigned int);
 
-#define XX_DISABLE	0
+void proto_cmd_show(struct proto *, unsigned int, int);
-#define XX_ENABLE	1
+void proto_cmd_disable(struct proto *, unsigned int, int);
-#define XX_RESTART	2
+void proto_cmd_enable(struct proto *, unsigned int, int);
-#define XX_RELOAD	3
+void proto_cmd_restart(struct proto *, unsigned int, int);
-#define XX_RELOAD_IN	4
+void proto_cmd_reload(struct proto *, unsigned int, int);
-#define XX_RELOAD_OUT	5
+void proto_cmd_debug(struct proto *, unsigned int, int);
+void proto_cmd_mrtdump(struct proto *, unsigned int, int);
+
+void proto_apply_cmd(struct proto_spec ps, void (* cmd)(struct proto *, unsigned int, int), int restricted, unsigned int arg);
+struct proto *proto_get_named(struct symbol *, struct protocol *);
+
+#define CMD_RELOAD	0
+#define CMD_RELOAD_IN	1
+#define CMD_RELOAD_OUT	2
 
 static inline u32
 proto_get_router_id(struct proto_config *pc)
@@ -334,4 +343,13 @@ struct announce_hook {
 
 struct announce_hook *proto_add_announce_hook(struct proto *, struct rtable *);
 
+/*
+ *	Some pipe-specific nest hacks
+ */
+
+#ifdef CONFIG_PIPE
+#include "proto/pipe/pipe.h"
+#endif
+
+
 #endif

nest/rt-attr.c

@@ -400,7 +400,7 @@ ea_format(eattr *e, byte *buf)
       switch (e->type & EAF_TYPE_MASK)
 	{
 	case EAF_TYPE_INT:
-	  bsprintf(buf, "%d", e->u.data);
+	  bsprintf(buf, "%u", e->u.data);
 	  break;
 	case EAF_TYPE_OPAQUE:
 	  for(i=0; i<ad->length; i++)

nest/rt-dev.c

@@ -33,6 +33,10 @@ dev_ifa_notify(struct proto *p, unsigned c, struct ifa *ad)
       !iface_patt_find(&P->iface_list, ad->iface))
     /* Empty list is automagically treated as "*" */
     return;
+
+  if (ad->scope <= SCOPE_LINK)
+    return;
+
   if (c & IF_CHANGE_DOWN)
     {
       net *n;
@@ -56,7 +60,7 @@ dev_ifa_notify(struct proto *p, unsigned c, struct ifa *ad)
       bzero(&A, sizeof(A));
       A.proto = p;
       A.source = RTS_DEVICE;
-      A.scope = ad->scope;
+      A.scope = SCOPE_UNIVERSE;
       A.cast = RTC_UNICAST;
       A.dest = RTD_DEVICE;
       A.iface = ad->iface;
@@ -76,7 +80,6 @@ dev_init(struct proto_config *c)
   struct proto *p = proto_new(c, sizeof(struct proto));
 
   p->ifa_notify = dev_ifa_notify;
-  p->min_scope = SCOPE_HOST;
   return p;
 }
 

nest/rt-table.c

@@ -158,37 +158,42 @@ rte_trace_out(unsigned int flag, struct proto *p, rte *e, char *msg)
 }
 
 static inline void
-do_rte_announce(struct announce_hook *a, int type, net *net, rte *new, rte *old, ea_list *tmpa, int class, int refeed)
+do_rte_announce(struct announce_hook *a, int type UNUSED, net *net, rte *new, rte *old, ea_list *tmpa, int refeed)
 {
   struct proto *p = a->proto;
+  struct filter *filter = p->out_filter;
+  struct proto_stats *stats = &p->stats;
   rte *new0 = new;
   rte *old0 = old;
   int ok;
 
   int fast_exit_hack = 0;
 
+#ifdef CONFIG_PIPE
+  /* The secondary direction of the pipe */
+  if (proto_is_pipe(p) && (p->table != a->table))
+    {
+      filter = p->in_filter;
+      stats = pipe_get_peer_stats(p);
+    }
+#endif
+
   if (new)
     {
-      p->stats.exp_updates_received++;
+      stats->exp_updates_received++;
 
       char *drop_reason = NULL;
-      if ((class & IADDR_SCOPE_MASK) < p->min_scope)
+      if ((ok = p->import_control ? p->import_control(p, &new, &tmpa, rte_update_pool) : 0) < 0)
 	{
-	  p->stats.exp_updates_rejected++;
+	  stats->exp_updates_rejected++;
-	  drop_reason = "out of scope";
-	  fast_exit_hack = 1;
-	}
-      else if ((ok = p->import_control ? p->import_control(p, &new, &tmpa, rte_update_pool) : 0) < 0)
-	{
-	  p->stats.exp_updates_rejected++;
 	  drop_reason = "rejected by protocol";
 	}
       else if (ok)
 	rte_trace_out(D_FILTERS, p, new, "forced accept by protocol");
-      else if (p->out_filter == FILTER_REJECT ||
+      else if ((filter == FILTER_REJECT) ||
-	       p->out_filter && f_run(p->out_filter, &new, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT)
+	       (filter && f_run(filter, &new, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
 	{
-	  p->stats.exp_updates_filtered++;
+	  stats->exp_updates_filtered++;
 	  drop_reason = "filtered out";
 	}
       if (drop_reason)
@@ -200,7 +205,7 @@ do_rte_announce(struct announce_hook *a, int type, net *net, rte *new, rte *old,
 	}
     }
   else
-    p->stats.exp_withdraws_received++;
+    stats->exp_withdraws_received++;
 
   /* Hack: This is here to prevent 'spurious withdraws'
      for loopback addresses during reload. */
@@ -229,13 +234,13 @@ do_rte_announce(struct announce_hook *a, int type, net *net, rte *new, rte *old,
 
   if (old && !refeed)
     {
-      if (p->out_filter == FILTER_REJECT)
+      if (filter == FILTER_REJECT)
 	old = NULL;
       else
 	{
 	  ea_list *tmpb = p->make_tmp_attrs ? p->make_tmp_attrs(old, rte_update_pool) : NULL;
 	  ok = p->import_control ? p->import_control(p, &old, &tmpb, rte_update_pool) : 0;
-	  if (ok < 0 || (!ok && p->out_filter && f_run(p->out_filter, &old, &tmpb, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
+	  if (ok < 0 || (!ok && filter && f_run(filter, &old, &tmpb, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
 	    {
 	      if (old != old0)
 		rte_free(old);
@@ -249,16 +254,16 @@ do_rte_announce(struct announce_hook *a, int type, net *net, rte *new, rte *old,
     return;
 
   if (new)
-    p->stats.exp_updates_accepted++;
+    stats->exp_updates_accepted++;
   else
-    p->stats.exp_withdraws_accepted++;
+    stats->exp_withdraws_accepted++;
 
   /* Hack: We do not decrease exp_routes during refeed, we instead
      reset exp_routes at the start of refeed. */
   if (new)
-    p->stats.exp_routes++;
+    stats->exp_routes++;
   if (old && !refeed)
-    p->stats.exp_routes--;
+    stats->exp_routes--;
 
   if (p->debug & D_ROUTES)
     {
@@ -270,18 +275,18 @@ do_rte_announce(struct announce_hook *a, int type, net *net, rte *new, rte *old,
 	rte_trace_out(D_ROUTES, p, old, "removed");
     }
   if (!new)
-    p->rt_notify(p, net, NULL, old, NULL);
+    p->rt_notify(p, a->table, net, NULL, old, NULL);
   else if (tmpa)
     {
       ea_list *t = tmpa;
       while (t->next)
 	t = t->next;
       t->next = new->attrs->eattrs;
-      p->rt_notify(p, net, new, old, tmpa);
+      p->rt_notify(p, a->table, net, new, old, tmpa);
       t->next = NULL;
     }
   else
-    p->rt_notify(p, net, new, old, new->attrs->eattrs);
+    p->rt_notify(p, a->table, net, new, old, new->attrs->eattrs);
   if (new && new != new0)	/* Discard temporary rte's */
     rte_free(new);
   if (old && old != old0)
@@ -318,10 +323,9 @@ do_rte_announce(struct announce_hook *a, int type, net *net, rte *new, rte *old,
  * the protocol gets called.
  */
 static void
-rte_announce(rtable *tab, int type, net *net, rte *new, rte *old, ea_list *tmpa)
+rte_announce(rtable *tab, unsigned type, net *net, rte *new, rte *old, ea_list *tmpa)
 {
   struct announce_hook *a;
-  int class = ipa_classify(net->n.prefix);
 
   if (type == RA_OPTIMAL)
     {
@@ -335,7 +339,7 @@ rte_announce(rtable *tab, int type, net *net, rte *new, rte *old, ea_list *tmpa)
     {
       ASSERT(a->proto->core_state == FS_HAPPY || a->proto->core_state == FS_FEEDING);
       if (a->proto->accept_ra_types == type)
-	do_rte_announce(a, type, net, new, old, tmpa, class, 0);
+	do_rte_announce(a, type, net, new, old, tmpa, 0);
     }
 }
 
@@ -351,33 +355,15 @@ rte_validate(rte *e)
 	  n->n.prefix, n->n.pxlen, e->sender->name);
       return 0;
     }
-  if (n->n.pxlen)
+
+  c = ipa_classify_net(n->n.prefix);
+  if ((c < 0) || !(c & IADDR_HOST) || ((c & IADDR_SCOPE_MASK) <= SCOPE_LINK))
     {
-      c = ipa_classify(n->n.prefix);
+      log(L_WARN "Ignoring bogus route %I/%d received via %s",
-      if (c < 0 || !(c & IADDR_HOST))
+	  n->n.prefix, n->n.pxlen, e->sender->name);
-	{
+      return 0;
-	  if (!ipa_nonzero(n->n.prefix))
-	    {
-	      /* Various default routes */
-#ifdef IPV6
-	      if (n->n.pxlen == 96)
-#else
-	      if (n->n.pxlen <= 1)
-#endif
-		return 1;
-	    }
-	  log(L_WARN "Ignoring bogus route %I/%d received via %s",
-	      n->n.prefix, n->n.pxlen, e->sender->name);
-	  return 0;
-	}
-      if ((c & IADDR_SCOPE_MASK) < e->sender->min_scope)
-	{
-	  log(L_WARN "Ignoring %s scope route %I/%d received from %I via %s",
-	      ip_scope_text(c & IADDR_SCOPE_MASK),
-	      n->n.prefix, n->n.pxlen, e->attrs->from, e->sender->name);
-	  return 0;
-	}
     }
+
   return 1;
 }
 
@@ -416,10 +402,16 @@ rte_same(rte *x, rte *y)
 static void
 rte_recalculate(rtable *table, net *net, struct proto *p, struct proto *src, rte *new, ea_list *tmpa)
 {
+  struct proto_stats *stats = &p->stats;
   rte *old_best = net->routes;
   rte *old = NULL;
   rte **k, *r, *s;
 
+#ifdef CONFIG_PIPE
+  if (proto_is_pipe(p) && (p->table == table))
+    stats = pipe_get_peer_stats(p);
+#endif
+
   k = &net->routes;			/* Find and remove original route from the same protocol */
   while (old = *k)
     {
@@ -448,7 +440,7 @@ rte_recalculate(rtable *table, net *net, struct proto *p, struct proto *src, rte
 	  if (new && rte_same(old, new))
 	    {
 	      /* No changes, ignore the new route */
-	      p->stats.imp_updates_ignored++;
+	      stats->imp_updates_ignored++;
 	      rte_trace_in(D_ROUTES, p, new, "ignored");
 	      rte_free_quick(new);
 	      old->lastmod = now;
@@ -462,19 +454,19 @@ rte_recalculate(rtable *table, net *net, struct proto *p, struct proto *src, rte
 
   if (!old && !new)
     {
-      p->stats.imp_withdraws_ignored++;
+      stats->imp_withdraws_ignored++;
       return;
     }
 
   if (new)
-    p->stats.imp_updates_accepted++;
+    stats->imp_updates_accepted++;
   else
-    p->stats.imp_withdraws_accepted++;
+    stats->imp_withdraws_accepted++;
 
   if (new)
-    p->stats.imp_routes++;
+    stats->imp_routes++;
   if (old)
-    p->stats.imp_routes--;
+    stats->imp_routes--;
 
   rte_announce(table, RA_ANY, net, new, old, tmpa);
 
@@ -632,6 +624,12 @@ void
 rte_update(rtable *table, net *net, struct proto *p, struct proto *src, rte *new)
 {
   ea_list *tmpa = NULL;
+  struct proto_stats *stats = &p->stats;
+
+#ifdef CONFIG_PIPE
+  if (proto_is_pipe(p) && (p->table == table))
+    stats = pipe_get_peer_stats(p);
+#endif
 
   rte_update_lock();
   if (new)
@@ -642,20 +640,20 @@ rte_update(rtable *table, net *net, struct proto *p, struct proto *src, rte *new
       /* Do not filter routes going through the pipe, 
 	 they are filtered in the export filter only. */
 #ifdef CONFIG_PIPE
-      if (p->proto == &proto_pipe)
+      if (proto_is_pipe(p))
 	filter = FILTER_ACCEPT;
 #endif
 
-      p->stats.imp_updates_received++;
+      stats->imp_updates_received++;
       if (!rte_validate(new))
 	{
 	  rte_trace_in(D_FILTERS, p, new, "invalid");
-	  p->stats.imp_updates_invalid++;
+	  stats->imp_updates_invalid++;
 	  goto drop;
 	}
       if (filter == FILTER_REJECT)
 	{
-	  p->stats.imp_updates_filtered++;
+	  stats->imp_updates_filtered++;
 	  rte_trace_in(D_FILTERS, p, new, "filtered out");
 	  goto drop;
 	}
@@ -667,7 +665,7 @@ rte_update(rtable *table, net *net, struct proto *p, struct proto *src, rte *new
 	  int fr = f_run(filter, &new, &tmpa, rte_update_pool, 0);
 	  if (fr > F_ACCEPT)
 	    {
-	      p->stats.imp_updates_filtered++;
+	      stats->imp_updates_filtered++;
 	      rte_trace_in(D_FILTERS, p, new, "filtered out");
 	      goto drop;
 	    }
@@ -679,7 +677,7 @@ rte_update(rtable *table, net *net, struct proto *p, struct proto *src, rte *new
       new->flags |= REF_COW;
     }
   else
-    p->stats.imp_withdraws_received++;
+    stats->imp_withdraws_received++;
 
   rte_recalculate(table, net, p, src, new, tmpa);
   rte_update_unlock();
@@ -995,7 +993,7 @@ do_feed_baby(struct proto *p, int type, struct announce_hook *h, net *n, rte *e)
 
   rte_update_lock();
   tmpa = q->make_tmp_attrs ? q->make_tmp_attrs(e, rte_update_pool) : NULL;
-  do_rte_announce(h, type, n, e, p->refeeding ? e : NULL, tmpa, ipa_classify(n->n.prefix), p->refeeding);
+  do_rte_announce(h, type, n, e, p->refeeding ? e : NULL, tmpa, p->refeeding);
   rte_update_unlock();
 }
 
@@ -1167,11 +1165,8 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d)
       if (p2 && p2 != p0) ok = 0;
       if (ok && d->export_mode)
 	{
-	  int class = ipa_classify(n->n.prefix);
 	  int ic;
-	  if ((class & IADDR_SCOPE_MASK) < p1->min_scope)
+	  if ((ic = p1->import_control ? p1->import_control(p1, &e, &tmpa, rte_update_pool) : 0) < 0)
-	    ok = 0;
-	  else if ((ic = p1->import_control ? p1->import_control(p1, &e, &tmpa, rte_update_pool) : 0) < 0)
 	    ok = 0;
 	  else if (!ic && d->export_mode > 1)
 	    {
@@ -1180,8 +1175,8 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d)
 		 'configure soft' command may change the export filter
 		 and do not update routes */
 
-	      if (p1->out_filter == FILTER_REJECT ||
+	      if ((p1->out_filter == FILTER_REJECT) ||
-		  p1->out_filter && f_run(p1->out_filter, &e, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT)
+		  (p1->out_filter && f_run(p1->out_filter, &e, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
 		ok = 0;
 	    }
 	}

proto/bgp/attrs.c

@@ -47,7 +47,7 @@ bgp_check_origin(struct bgp_proto *p UNUSED, byte *a, int len UNUSED)
 }
 
 static void
-bgp_format_origin(eattr *a, byte *buf, int buflen)
+bgp_format_origin(eattr *a, byte *buf, int buflen UNUSED)
 {
   static char *bgp_origin_names[] = { "IGP", "EGP", "Incomplete" };
 
@@ -257,14 +257,14 @@ static struct attr_desc bgp_attr_table[] = {
     NULL, NULL },
   { "cluster_list", -1, BAF_OPTIONAL, EAF_TYPE_INT_SET, 0,			/* BA_CLUSTER_LIST */
     bgp_check_cluster_list, bgp_format_cluster_list }, 
-  { NULL, },									/* BA_DPA */
+  { .name = NULL },								/* BA_DPA */
-  { NULL, },									/* BA_ADVERTISER */
+  { .name = NULL },									/* BA_ADVERTISER */
-  { NULL, },									/* BA_RCID_PATH */
+  { .name = NULL },									/* BA_RCID_PATH */
   { "mp_reach_nlri", -1, BAF_OPTIONAL, EAF_TYPE_OPAQUE, 1,			/* BA_MP_REACH_NLRI */
     bgp_check_reach_nlri, NULL },
   { "mp_unreach_nlri", -1, BAF_OPTIONAL, EAF_TYPE_OPAQUE, 1,			/* BA_MP_UNREACH_NLRI */
     bgp_check_unreach_nlri, NULL },
-  { NULL, },									/* BA_EXTENDED_COMM */
+  {  .name = NULL },									/* BA_EXTENDED_COMM */
   { "as4_path", -1, BAF_OPTIONAL | BAF_TRANSITIVE, EAF_TYPE_OPAQUE, 1,		/* BA_AS4_PATH */
     NULL, NULL },
   { "as4_aggregator", -1, BAF_OPTIONAL | BAF_TRANSITIVE, EAF_TYPE_OPAQUE, 1,	/* BA_AS4_PATH */
@@ -772,7 +772,7 @@ bgp_free_bucket(struct bgp_proto *p, struct bgp_bucket *buck)
 }
 
 void
-bgp_rt_notify(struct proto *P, net *n, rte *new, rte *old UNUSED, ea_list *attrs)
+bgp_rt_notify(struct proto *P, rtable *tbl UNUSED, net *n, rte *new, rte *old UNUSED, ea_list *attrs)
 {
   struct bgp_proto *p = (struct bgp_proto *) P;
   struct bgp_bucket *buck;
@@ -1070,16 +1070,6 @@ bgp_rte_better(rte *new, rte *old)
   /* Skipping RFC 4271 9.1.2.2. e) */
   /* We don't have interior distances */
 
-  /* RFC 4456 9. b) Compare cluster list lengths */
-  x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
-  y = ea_find(old->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
-  n = x ? int_set_get_size(x->u.ptr) : 0;
-  o = y ? int_set_get_size(y->u.ptr) : 0;
-  if (n < o)
-    return 1;
-  if (n > o)
-    return 0;
-
   /* RFC 4271 9.1.2.2. f) Compare BGP identifiers */
   /* RFC 4456 9. a) Use ORIGINATOR_ID instead of local neighor ID */
   x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_ORIGINATOR_ID));
@@ -1099,6 +1089,16 @@ bgp_rte_better(rte *new, rte *old)
   if (n > o)
     return 0;
 
+  /* RFC 4456 9. b) Compare cluster list lengths */
+  x = ea_find(new->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
+  y = ea_find(old->attrs->eattrs, EA_CODE(EAP_BGP, BA_CLUSTER_LIST));
+  n = x ? int_set_get_size(x->u.ptr) : 0;
+  o = y ? int_set_get_size(y->u.ptr) : 0;
+  if (n < o)
+    return 1;
+  if (n > o)
+    return 0;
+
   /* RFC 4271 9.1.2.2. g) Compare peer IP adresses */
   return (ipa_compare(new_bgp->cf->remote_ip, old_bgp->cf->remote_ip) < 0);
 }

proto/bgp/bgp.c

@@ -203,7 +203,7 @@ bgp_start_timer(timer *t, int value)
 void
 bgp_close_conn(struct bgp_conn *conn)
 {
-  struct bgp_proto *p = conn->bgp;
+  // struct bgp_proto *p = conn->bgp;
 
   DBG("BGP: Closing connection\n");
   conn->packets_to_send = 0;
@@ -237,7 +237,7 @@ bgp_update_startup_delay(struct bgp_proto *p)
 
   DBG("BGP: Updating startup delay\n");
 
-  if (p->last_proto_error && ((now - p->last_proto_error) >= cf->error_amnesia_time))
+  if (p->last_proto_error && ((now - p->last_proto_error) >= (int) cf->error_amnesia_time))
     p->startup_delay = 0;
 
   p->last_proto_error = now;
@@ -492,7 +492,7 @@ bgp_setup_conn(struct bgp_proto *p, struct bgp_conn *conn)
 }
 
 static void
-bgp_setup_sk(struct bgp_proto *p, struct bgp_conn *conn, sock *s)
+bgp_setup_sk(struct bgp_conn *conn, sock *s)
 {
   s->data = conn;
   s->err_hook = bgp_sock_err;
@@ -555,7 +555,7 @@ bgp_connect(struct bgp_proto *p)	/* Enter Connect state and start establishing c
   s->tx_hook = bgp_connected;
   BGP_TRACE(D_EVENTS, "Connecting to %I from local address %I", s->daddr, s->saddr);
   bgp_setup_conn(p, conn);
-  bgp_setup_sk(p, conn, s);
+  bgp_setup_sk(conn, s);
   bgp_conn_set_state(conn, BS_CONNECT);
   if (sk_open(s))
     {
@@ -601,7 +601,7 @@ bgp_incoming_connection(sock *sk, int dummy UNUSED)
 	      goto err;
 
 	    bgp_setup_conn(p, &p->incoming_conn);
-	    bgp_setup_sk(p, &p->incoming_conn, sk);
+	    bgp_setup_sk(&p->incoming_conn, sk);
 	    sk_set_ttl(sk, p->cf->multihop ? : 1);
 	    bgp_send_open(&p->incoming_conn);
 	    return 0;
@@ -614,6 +614,15 @@ bgp_incoming_connection(sock *sk, int dummy UNUSED)
   return 0;
 }
 
+static void
+bgp_listen_sock_err(sock *sk UNUSED, int err)
+{
+  if (err == ECONNABORTED)
+    log(L_WARN "BGP: Incoming connection aborted");
+  else
+    log(L_ERR "BGP: Error on incoming socket: %M", err);
+}
+
 static sock *
 bgp_setup_listen_sk(ip_addr addr, unsigned port, u32 flags)
 {
@@ -627,9 +636,10 @@ bgp_setup_listen_sk(ip_addr addr, unsigned port, u32 flags)
   s->rbsize = BGP_RX_BUFFER_SIZE;
   s->tbsize = BGP_TX_BUFFER_SIZE;
   s->rx_hook = bgp_incoming_connection;
+  s->err_hook = bgp_listen_sock_err;
   if (sk_open(s))
     {
-      log(L_ERR "Unable to open incoming BGP socket");
+      log(L_ERR "BGP: Unable to open incoming socket");
       rfree(s);
       return NULL;
     }

proto/bgp/bgp.h

@@ -179,7 +179,7 @@ byte *bgp_attach_attr_wa(struct ea_list **to, struct linpool *pool, unsigned att
 struct rta *bgp_decode_attrs(struct bgp_conn *conn, byte *a, unsigned int len, struct linpool *pool, int mandatory);
 int bgp_get_attr(struct eattr *e, byte *buf, int buflen);
 int bgp_rte_better(struct rte *, struct rte *);
-void bgp_rt_notify(struct proto *, struct network *, struct rte *, struct rte *, struct ea_list *);
+void bgp_rt_notify(struct proto *P, rtable *tbl UNUSED, net *n, rte *new, rte *old UNUSED, ea_list *attrs);
 int bgp_import_control(struct proto *, struct rte **, struct ea_list **, struct linpool *);
 void bgp_attr_init(struct bgp_proto *);
 unsigned int bgp_encode_attrs(struct bgp_proto *p, byte *w, ea_list *attrs, int remains);

proto/bgp/config.Y

@@ -59,7 +59,7 @@ bgp_proto:
      BGP_CFG->remote_ip = $3;
      BGP_CFG->remote_as = $5;
    }
- | bgp_proto RR CLUSTER ID expr ';' { BGP_CFG->rr_cluster_id = $5; }
+ | bgp_proto RR CLUSTER ID idval ';' { BGP_CFG->rr_cluster_id = $5; }
  | bgp_proto RR CLIENT ';' { BGP_CFG->rr_client = 1; }
  | bgp_proto RS CLIENT ';' { BGP_CFG->rs_client = 1; }
  | bgp_proto HOLD TIME expr ';' { BGP_CFG->hold_time = $4; }

proto/bgp/packets.c

@@ -44,7 +44,6 @@ static byte *
 mrt_put_bgp4_hdr(byte *buf, struct bgp_conn *conn, int as4)
 {
   struct bgp_proto *p = conn->bgp;
-  ip_addr local_addr;
 
   if (as4)
     {
@@ -614,7 +613,7 @@ bgp_tx(sock *sk)
 void
 bgp_parse_capabilities(struct bgp_conn *conn, byte *opt, int len)
 {
-  struct bgp_proto *p = conn->bgp;
+  // struct bgp_proto *p = conn->bgp;
   int cl;
 
   while (len > 0)
@@ -915,7 +914,6 @@ bgp_do_rx_update(struct bgp_conn *conn,
   rta *a = NULL;
   ip_addr prefix;
   net *n;
-  rte e;
   int err = 0, pxlen;
 
   p->mp_reach_len = 0;
@@ -937,8 +935,6 @@ bgp_do_rx_update(struct bgp_conn *conn,
 
   DO_NLRI(mp_reach)
     {
-      int i;
-
       /* Create fake NEXT_HOP attribute */
       if (len < 1 || (*x != 16 && *x != 32) || len < *x + 2)
 	goto bad;

proto/ospf/hello.c

@@ -48,8 +48,8 @@ ospf_hello_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa,
   struct proto_ospf *po = ifa->oa->po;
   struct proto *p = &po->proto;
   char *beg = "OSPF: Bad HELLO packet from ";
-  unsigned int size, i, twoway, oldpriority, eligible, peers;
+  unsigned int size, i, twoway, eligible, peers;
-  u32 olddr, oldbdr, oldiface_id, tmp;
+  u32 tmp;
   u32 *pnrid;
 
   size = ntohs(ps_i->length);
@@ -169,11 +169,11 @@ ospf_hello_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa,
   if (!twoway)
     ospf_neigh_sm(n, INM_1WAYREC);
 
-  olddr = n->dr;
+  u32 olddr = n->dr;
-  oldbdr = n->bdr;
+  u32 oldbdr = n->bdr;
-  oldpriority = n->priority;
+  u32 oldpriority = n->priority;
 #ifdef OSPFv3
-  oldiface_id = n->iface_id;
+  u32 oldiface_id = n->iface_id;
 #endif
 
   n->dr = ntohl(ps->dr);

proto/ospf/lsalib.c

@@ -122,22 +122,22 @@ ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h)
 }
 
 void
-htonlsab(void *h, void *n, u16 type, u16 len)
+htonlsab(void *h, void *n, u16 len)
 {
   u32 *hid = h;
   u32 *nid = n;
-  int i;
+  unsigned i;
 
   for (i = 0; i < (len / sizeof(u32)); i++)
     nid[i] = htonl(hid[i]);
 }
 
 void
-ntohlsab(void *n, void *h, u16 type, u16 len)
+ntohlsab(void *n, void *h, u16 len)
 {
   u32 *nid = n;
   u32 *hid = h;
-  int i;
+  unsigned i;
 
   for (i = 0; i < (len / sizeof(u32)); i++)
     hid[i] = ntohl(nid[i]);
@@ -185,11 +185,10 @@ void
 lsasum_calculate(struct ospf_lsa_header *h, void *body)
 {
   u16 length = h->length;
-  u16 type = h->type;
 
   //  log(L_WARN "Checksum %R %R %d start (len %d)", h->id, h->rt, h->type, length);
   htonlsah(h, h);
-  htonlsab(body, body, type, length - sizeof(struct ospf_lsa_header));
+  htonlsab(body, body, length - sizeof(struct ospf_lsa_header));
 
   /*
   char buf[1024];
@@ -203,7 +202,7 @@ lsasum_calculate(struct ospf_lsa_header *h, void *body)
   //  log(L_WARN "Checksum result %4x", h->checksum);
 
   ntohlsah(h, h);
-  ntohlsab(body, body, type, length - sizeof(struct ospf_lsa_header));
+  ntohlsab(body, body, length - sizeof(struct ospf_lsa_header));
 }
 
 /*
@@ -325,7 +324,7 @@ lsa_validate_rt(struct ospf_lsa_header *lsa, struct ospf_lsa_rt *body)
 }
 
 static int
-lsa_validate_net(struct ospf_lsa_header *lsa, struct ospf_lsa_net *body)
+lsa_validate_net(struct ospf_lsa_header *lsa, struct ospf_lsa_net *body UNUSED)
 {
   if (lsa->length < (HDRLEN + sizeof(struct ospf_lsa_net)))
     return 0;

proto/ospf/lsalib.h

@@ -12,8 +12,8 @@
 
 void htonlsah(struct ospf_lsa_header *h, struct ospf_lsa_header *n);
 void ntohlsah(struct ospf_lsa_header *n, struct ospf_lsa_header *h);
-void htonlsab(void *h, void *n, u16 type, u16 len);
+void htonlsab(void *h, void *n, u16 len);
-void ntohlsab(void *n, void *h, u16 type, u16 len);
+void ntohlsab(void *n, void *h, u16 len);
 void lsasum_calculate(struct ospf_lsa_header *header, void *body);
 u16 lsasum_check(struct ospf_lsa_header *h, void *body);
 #define CMP_NEWER 1

proto/ospf/lsupd.c

@@ -290,8 +290,7 @@ ospf_lsupd_flood(struct proto_ospf *po,
 	htonlsah(hh, lh);
 	help = (u8 *) (lh + 1);
 	en = ospf_hash_find_header(po->gr, domain, hh);
-	htonlsab(en->lsa_body, help, hh->type, hh->length
+	htonlsab(en->lsa_body, help, hh->length - sizeof(struct ospf_lsa_header));
-		 - sizeof(struct ospf_lsa_header));
       }
 
       len = sizeof(struct ospf_lsupd_packet) + ntohs(lh->length);
@@ -384,8 +383,7 @@ ospf_lsupd_send_list(struct ospf_neighbor *n, list * l)
     }
     htonlsah(&(en->lsa), pktpos);
     pktpos = pktpos + sizeof(struct ospf_lsa_header);
-    htonlsab(en->lsa_body, pktpos, en->lsa.type, en->lsa.length
+    htonlsab(en->lsa_body, pktpos, en->lsa.length - sizeof(struct ospf_lsa_header));
-	     - sizeof(struct ospf_lsa_header));
     pktpos = pktpos + en->lsa.length - sizeof(struct ospf_lsa_header);
     len += en->lsa.length;
     lsano++;
@@ -627,8 +625,7 @@ ospf_lsupd_receive(struct ospf_packet *ps_i, struct ospf_iface *ifa,
 
       /* pg 144 (5d) */
       void *body = mb_alloc(p->pool, lsatmp.length - sizeof(struct ospf_lsa_header));
-      ntohlsab(lsa + 1, body, lsatmp.type,
+      ntohlsab(lsa + 1, body, lsatmp.length - sizeof(struct ospf_lsa_header));
-	       lsatmp.length - sizeof(struct ospf_lsa_header));
 
       /* We will do validation check after flooding and
 	 acknowledging given LSA to minimize problems

proto/ospf/neighbor.c

@@ -440,7 +440,6 @@ void
 bdr_election(struct ospf_iface *ifa)
 {
   struct proto_ospf *po = ifa->oa->po;
-  struct proto *p = &po->proto;
   u32 myid = po->router_id;
   struct ospf_neighbor *neigh, *ndr, *nbdr, me;
   int doadj;
@@ -631,7 +630,7 @@ static void
 rxmt_timer_hook(timer * timer)
 {
   struct ospf_neighbor *n = (struct ospf_neighbor *) timer->data;
-  struct proto *p = &n->ifa->oa->po->proto;
+  // struct proto *p = &n->ifa->oa->po->proto;
   struct top_hash_entry *en;
 
   DBG("%s: RXMT timer fired on interface %s for neigh: %I.\n",

proto/ospf/ospf.c

@@ -78,7 +78,7 @@
 
 
 static int ospf_reload_routes(struct proto *p);
-static void ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old UNUSED, ea_list * attrs);
+static void ospf_rt_notify(struct proto *p, struct rtable *table UNUSED, net * n, rte * new, rte * old UNUSED, ea_list * attrs);
 static void ospf_ifa_notify(struct proto *p, unsigned flags, struct ifa *a);
 static int ospf_rte_better(struct rte *new, struct rte *old);
 static int ospf_rte_same(struct rte *new, struct rte *old);
@@ -224,9 +224,11 @@ ospf_dump(struct proto *p)
     }
   }
 
+  /*
   OSPF_TRACE(D_EVENTS, "LSA graph dump start:");
   ospf_top_dump(po->gr, p);
   OSPF_TRACE(D_EVENTS, "LSA graph dump finished");
+  */
   neigh_dump_all();
 }
 
@@ -486,8 +488,7 @@ ospf_shutdown(struct proto *p)
 }
 
 static void
-ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old UNUSED,
+ospf_rt_notify(struct proto *p, rtable *tbl UNUSED, net * n, rte * new, rte * old UNUSED, ea_list * attrs)
-	       ea_list * attrs)
 {
   struct proto_ospf *po = (struct proto_ospf *) p;
 
@@ -503,7 +504,7 @@ ospf_rt_notify(struct proto *p, net * n, rte * new, rte * old UNUSED,
 }
 
 static void
-ospf_ifa_notify(struct proto *p, unsigned flags, struct ifa *a)
+ospf_ifa_notify(struct proto *p, unsigned flags UNUSED, struct ifa *a)
 {
   struct proto_ospf *po = (struct proto_ospf *) p;
   struct ospf_iface *ifa;
@@ -918,7 +919,7 @@ ospf_reconfigure(struct proto *p, struct proto_config *c)
 void
 ospf_sh_neigh(struct proto *p, char *iff)
 {
-  struct ospf_iface *ifa = NULL, *f;
+  struct ospf_iface *ifa = NULL;
   struct ospf_neighbor *n;
   struct proto_ospf *po = (struct proto_ospf *) p;
 
@@ -1009,7 +1010,7 @@ void
 ospf_sh_iface(struct proto *p, char *iff)
 {
   struct proto_ospf *po = (struct proto_ospf *) p;
-  struct ospf_iface *ifa = NULL, *f;
+  struct ospf_iface *ifa = NULL;
 
   if (p->proto_state != PS_UP)
   {
@@ -1196,7 +1197,6 @@ show_lsa_network(struct top_hash_entry *he)
 static inline void
 show_lsa_sum_net(struct top_hash_entry *he)
 {
-  struct ospf_lsa_header *lsa = &(he->lsa);
   ip_addr ip;
   int pxlen;
 
@@ -1236,9 +1236,7 @@ show_lsa_sum_rt(struct top_hash_entry *he)
 static inline void
 show_lsa_external(struct top_hash_entry *he)
 {
-  struct ospf_lsa_header *lsa = &(he->lsa);
   struct ospf_lsa_ext *ext = he->lsa_body;
-  struct ospf_lsa_ext_tos *et = (struct ospf_lsa_ext_tos *) (ext + 1);
   char str_via[STD_ADDRESS_P_LENGTH + 8] = "";
   char str_tag[16] = "";
   ip_addr ip, rt_fwaddr;
@@ -1248,7 +1246,7 @@ show_lsa_external(struct top_hash_entry *he)
   rt_metric = ext->metric & METRIC_MASK;
   ebit = ext->metric & LSA_EXT_EBIT;
 #ifdef OSPFv2
-  ip = ipa_and(ipa_from_u32(lsa->id), ext->netmask);
+  ip = ipa_and(ipa_from_u32(he->lsa.id), ext->netmask);
   pxlen = ipa_mklen(ext->netmask);
   rt_fwaddr = ext->fwaddr;
   rt_fwaddr_valid = !ipa_equal(rt_fwaddr, IPA_NONE);
@@ -1285,10 +1283,7 @@ show_lsa_external(struct top_hash_entry *he)
 static inline void
 show_lsa_prefix(struct top_hash_entry *he, struct ospf_lsa_header *olsa)
 {
-  struct ospf_lsa_header *lsa = &(he->lsa);
   struct ospf_lsa_prefix *px = he->lsa_body;
-  struct ospf_lsa_ext *ext = he->lsa_body;
-  char *msg;
   ip_addr pxa;
   int pxlen;
   u8 pxopts;
@@ -1496,8 +1491,6 @@ ospf_sh_lsadb(struct proto *p)
     
     if ((dscope != last_dscope) || (hea[i]->domain != last_domain))
     {
-      struct iface *ifa;
-
       cli_msg(-1017, "");
       switch (dscope)
       {
@@ -1509,8 +1502,10 @@ ospf_sh_lsadb(struct proto *p)
 	  break;
 #ifdef OSPFv3
 	case LSA_SCOPE_LINK:
-	  ifa = if_find_by_index(hea[i]->domain);
+	  {
-	  cli_msg(-1017, "Link %s", (ifa != NULL) ? ifa->name : "?");
+	    struct iface *ifa = if_find_by_index(hea[i]->domain);
+	    cli_msg(-1017, "Link %s", (ifa != NULL) ? ifa->name : "?");
+	  }
 	  break;
 #endif
       }

proto/ospf/ospf.h

@@ -705,7 +705,7 @@ struct ospf_area
   struct top_hash_entry *pxr_lsa; /* Originated prefix LSA */
   list cand;			/* List of candidates for RT calc. */
   struct fib net_fib;		/* Networks to advertise or not */
-  int stub;
+  unsigned stub;
   int trcap;			/* Transit capability? */
   u32 options;			/* Optional features */
   struct proto_ospf *po;
@@ -782,13 +782,14 @@ void schedule_net_lsa(struct ospf_iface *ifa);
 #ifdef OSPFv3
 void schedule_link_lsa(struct ospf_iface *ifa);
 #else
-static inline void schedule_link_lsa(struct ospf_iface *ifa) {}
+static inline void schedule_link_lsa(struct ospf_iface *ifa UNUSED) {}
 #endif
 
 void ospf_sh_neigh(struct proto *p, char *iff);
 void ospf_sh(struct proto *p);
 void ospf_sh_iface(struct proto *p, char *iff);
 void ospf_sh_state(struct proto *p, int verbose);
+void ospf_sh_lsadb(struct proto *p);
 
 
 #define EA_OSPF_METRIC1	EA_CODE(EAP_OSPF, 0)

proto/ospf/packet.c

@@ -14,7 +14,6 @@ void
 ospf_pkt_fill_hdr(struct ospf_iface *ifa, void *buf, u8 h_type)
 {
   struct proto_ospf *po = ifa->oa->po;
-  struct proto *p = &po->proto;
   struct ospf_packet *pkt;
 
   pkt = (struct ospf_packet *) buf;
@@ -282,7 +281,7 @@ ospf_rx_hook(sock *sk, int size)
   /* Initially, the packet is associated with the 'master' iface */
   struct ospf_iface *ifa = sk->data;
   struct proto_ospf *po = ifa->oa->po;
-  struct proto *p = &po->proto;
+  // struct proto *p = &po->proto;
 
   int src_local = ifa_match_addr(ifa->addr, sk->faddr);
   int dst_local = ipa_equal(sk->laddr, ifa->addr->ip);

proto/ospf/rt.c

@@ -170,7 +170,7 @@ static void
 process_prefixes(struct ospf_area *oa)
 {
   struct proto_ospf *po = oa->po;
-  struct proto *p = &po->proto;
+  // struct proto *p = &po->proto;
   struct top_hash_entry *en, *src;
   struct ospf_lsa_prefix *px;
   ip_addr pxa;
@@ -226,9 +226,8 @@ process_prefixes(struct ospf_area *oa)
 static void
 ospf_rt_spfa_rtlinks(struct ospf_area *oa, struct top_hash_entry *act, struct top_hash_entry *en)
 {
-  struct proto *p = &oa->po->proto;
+  // struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
-  orta nf;
   u32 i;
 
   struct ospf_lsa_rt *rt = en->lsa_body;
@@ -249,6 +248,7 @@ ospf_rt_spfa_rtlinks(struct ospf_area *oa, struct top_hash_entry *act, struct to
 	   */
 	  DBG("\n");
 
+	  orta nf;
 	  nf.type = RTS_OSPF;
 	  nf.options = 0;
 	  nf.metric1 = act->dist + rtl->metric;
@@ -521,7 +521,7 @@ link_back(struct ospf_area *oa, struct top_hash_entry *en, struct top_hash_entry
 static void
 ospf_rt_sum_tr(struct ospf_area *oa)
 {
-  struct proto *p = &oa->po->proto;
+  // struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
   struct ospf_area *bb = po->backbone;
   ip_addr ip, abrip;
@@ -573,7 +573,7 @@ ospf_rt_sum_tr(struct ospf_area *oa)
       type = ORT_NET;
       re = fib_find(&po->rtf, &ip, pxlen);
     }
-    else if (en->lsa.type == LSA_T_SUM_RT)
+    else // en->lsa.type == LSA_T_SUM_RT
     {
 #ifdef OSPFv2
       struct ospf_lsa_sum *ls = en->lsa_body;
@@ -1081,8 +1081,8 @@ static int
 calc_next_hop(struct ospf_area *oa, struct top_hash_entry *en,
 	      struct top_hash_entry *par)
 {
+  // struct proto *p = &oa->po->proto;
   struct ospf_neighbor *neigh;
-  struct proto *p = &oa->po->proto;
   struct proto_ospf *po = oa->po;
   struct ospf_iface *ifa;
 

proto/ospf/topology.c

@@ -741,7 +741,7 @@ originate_sum_net_lsa(struct ospf_area *oa, struct fib_node *fn, int metric)
 }
 
 void
-originate_sum_rt_lsa(struct ospf_area *oa, struct fib_node *fn, int metric, u32 options)
+originate_sum_rt_lsa(struct ospf_area *oa, struct fib_node *fn, int metric, u32 options UNUSED)
 {
   struct proto_ospf *po = oa->po;
   struct proto *p = &po->proto;
@@ -897,7 +897,6 @@ originate_ext_lsa_body(net *n, rte *e, u16 *length, struct proto_ospf *po,
   u32 tag = ea_get_int(attrs, EA_OSPF_TAG, 0);
   int gw = 0;
   int size = sizeof(struct ospf_lsa_ext);
-  u32 *buf;
 
   if ((e->attrs->dest == RTD_ROUTER) &&
       !ipa_equal(e->attrs->gw, IPA_NONE) &&
@@ -925,7 +924,7 @@ originate_ext_lsa_body(net *n, rte *e, u16 *length, struct proto_ospf *po,
   ext->fwaddr = gw ? e->attrs->gw : IPA_NONE;
   ext->tag = tag;
 #else /* OSPFv3 */
-  buf = ext->rest;
+  u32 *buf = ext->rest;
   buf = put_ipv6_prefix(buf, n->n.prefix, n->n.pxlen, 0, 0);
 
   if (gw)
@@ -1015,7 +1014,6 @@ flush_ext_lsa(net *n, struct proto_ospf *po)
 {
   struct proto *p = &po->proto;
   struct fib_node *fn = &n->n;
-  struct ospf_area *oa;
   struct top_hash_entry *en;
 
   OSPF_TRACE(D_EVENTS, "Flushing AS-external-LSA for %I/%d",
@@ -1649,10 +1647,11 @@ ospf_hash_delete(struct top_graph *f, struct top_hash_entry *e)
   bug("ospf_hash_delete() called for invalid node");
 }
 
+/*
 static void
 ospf_dump_lsa(struct top_hash_entry *he, struct proto *p)
 {
-  /*
+
   struct ospf_lsa_rt *rt = NULL;
   struct ospf_lsa_rt_link *rr = NULL;
   struct ospf_lsa_net *ln = NULL;
@@ -1686,7 +1685,6 @@ ospf_dump_lsa(struct top_hash_entry *he, struct proto *p)
     default:
       break;
     }
-  */
 }
 
 void
@@ -1702,6 +1700,7 @@ ospf_top_dump(struct top_graph *f, struct proto *p)
       ospf_dump_lsa(e, p);
   }
 }
+*/
 
 /* This is very inefficient, please don't call it often */
 

proto/pipe/pipe.c

@@ -31,9 +31,12 @@
 #include "pipe.h"
 
 static void
-pipe_send(struct pipe_proto *p, rtable *src_table, rtable *dest, net *n, rte *new, rte *old, ea_list *attrs)
+pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, ea_list *attrs)
 {
+  struct pipe_proto *p = (struct pipe_proto *) P;
+  rtable *dest = (src_table == P->table) ? p->peer : P->table; /* The other side of the pipe */
   struct proto *src;
+
   net *nn;
   rte *e;
   rta a;
@@ -85,30 +88,12 @@ pipe_send(struct pipe_proto *p, rtable *src_table, rtable *dest, net *n, rte *ne
   src_table->pipe_busy = 0;
 }
 
-static void
-pipe_rt_notify_pri(struct proto *P, net *net, rte *new, rte *old, ea_list *attrs)
-{
-  struct pipe_proto *p = (struct pipe_proto *) P;
-
-  DBG("PIPE %c> %I/%d\n", (new ? '+' : '-'), net->n.prefix, net->n.pxlen);
-  pipe_send(p, p->p.table, p->peer, net, new, old, attrs);
-}
-
-static void
-pipe_rt_notify_sec(struct proto *P, net *net, rte *new, rte *old, ea_list *attrs)
-{
-  struct pipe_proto *p = ((struct pipe_proto *) P)->phantom;
-
-  DBG("PIPE %c< %I/%d\n", (new ? '+' : '-'), net->n.prefix, net->n.pxlen);
-  pipe_send(p, p->peer, p->p.table, net, new, old, attrs);
-}
-
 static int
 pipe_import_control(struct proto *P, rte **ee, ea_list **ea UNUSED, struct linpool *p UNUSED)
 {
   struct proto *pp = (*ee)->sender;
 
-  if (pp == P || pp == &((struct pipe_proto *) P)->phantom->p)
+  if (pp == P)
     return -1;	/* Avoid local loops automatically */
   return 0;
 }
@@ -130,60 +115,20 @@ static int
 pipe_start(struct proto *P)
 {
   struct pipe_proto *p = (struct pipe_proto *) P;
-  struct pipe_proto *ph;
   struct announce_hook *a;
 
-  /*
+  /* Clean up the secondary stats */
-   *  Create a phantom protocol which will represent the remote
+  bzero(&p->peer_stats, sizeof(struct proto_stats));
-   *  end of the pipe (we need to do this in order to get different
-   *  filters and announce functions and it unfortunately involves
-   *  a couple of magic trickery).
-   */
-  ph = mb_alloc(P->pool, sizeof(struct pipe_proto));
-  memcpy(ph, p, sizeof(struct pipe_proto));
-  p->phantom = ph;
-  ph->phantom = p;
-  ph->p.accept_ra_types = (p->mode == PIPE_OPAQUE) ? RA_OPTIMAL : RA_ANY;
-  ph->p.rt_notify = pipe_rt_notify_sec;
-  ph->p.proto_state = PS_UP;
-  ph->p.core_state = ph->p.core_goal = FS_HAPPY;
 
-  /*
+  /* Lock the peer table, unlock is handled in proto_fell_down() */
-   *  Routes should be filtered in the do_rte_announce() (export
-   *  filter for protocols). Reverse direction is handled by putting
-   *  specified import filter to out_filter field of the phantom
-   *  protocol.
-   *
-   *  in_filter fields are not important, there is an exception in
-   *  rte_update() to ignore it for pipes. We cannot just set
-   *  P->in_filter to FILTER_ACCEPT, because that would break other
-   *  things (reconfiguration, show-protocols command).
-   */
-  ph->p.in_filter = FILTER_ACCEPT;
-  ph->p.out_filter = P->in_filter;
-
-  /*
-   *  Connect the phantom protocol to the peer routing table, but
-   *  keep it in the list of connections of the primary protocol,
-   *  so that it gets disconnected at the right time and we also
-   *  get all routes from both sides during the feeding phase.
-   */
-  a = proto_add_announce_hook(P, p->peer);
-  a->proto = &ph->p;
   rt_lock_table(p->peer);
 
+  /* Connect the protocol also to the peer routing table. */
+  a = proto_add_announce_hook(P, p->peer);
+
   return PS_UP;
 }
 
-static int
-pipe_shutdown(struct proto *P)
-{
-  struct pipe_proto *p = (struct pipe_proto *) P;
-
-  rt_unlock_table(p->peer);
-  return PS_DOWN;
-}
-
 static struct proto *
 pipe_init(struct proto_config *C)
 {
@@ -194,9 +139,10 @@ pipe_init(struct proto_config *C)
   p->peer = c->peer->table;
   p->mode = c->mode;
   P->accept_ra_types = (p->mode == PIPE_OPAQUE) ? RA_OPTIMAL : RA_ANY;
-  P->rt_notify = pipe_rt_notify_pri;
+  P->rt_notify = pipe_rt_notify;
   P->import_control = pipe_import_control;
   P->reload_routes = pipe_reload_routes;
+
   return P;
 }
 
@@ -222,25 +168,23 @@ pipe_get_status(struct proto *P, byte *buf)
 static int
 pipe_reconfigure(struct proto *P, struct proto_config *new)
 {
-  struct pipe_proto *p = (struct pipe_proto *) P;
+  // struct pipe_proto *p = (struct pipe_proto *) P;
   struct pipe_config *o = (struct pipe_config *) P->cf;
   struct pipe_config *n = (struct pipe_config *) new;
 
   if ((o->peer->table != n->peer->table) || (o->mode != n->mode))
     return 0;
 
-  /* Update also the filter in the phantom protocol */
-  p->phantom->p.out_filter = new->in_filter;
   return 1;
 }
 
+
 struct protocol proto_pipe = {
   name:		"Pipe",
   template:	"pipe%d",
   postconfig:	pipe_postconfig,
   init:		pipe_init,
   start:	pipe_start,
-  shutdown:	pipe_shutdown,
   reconfigure:	pipe_reconfigure,
   get_status:	pipe_get_status,
 };

proto/pipe/pipe.h

@@ -21,8 +21,20 @@ struct pipe_config {
 struct pipe_proto {
   struct proto p;
   struct rtable *peer;
+  struct proto_stats peer_stats;	/* Statistics for the direction peer->primary */
   int mode;				/* PIPE_OPAQUE or PIPE_TRANSPARENT */
-  struct pipe_proto *phantom;
 };
 
+
+extern struct protocol proto_pipe;
+
+static inline int proto_is_pipe(struct proto *p)
+{ return p->proto == &proto_pipe; }
+
+static inline struct rtable * pipe_get_peer_table(struct proto *P)
+{ return ((struct pipe_proto *) P)->peer; }
+
+static inline struct proto_stats * pipe_get_peer_stats(struct proto *P)
+{ return &((struct pipe_proto *) P)->peer_stats; }
+
 #endif

proto/rip/rip.c

@@ -752,6 +752,7 @@ new_iface(struct proto *p, struct iface *new, unsigned long flags, struct iface_
     return NULL;
   }
   /* On dummy, we just return non-working socket, so that user gets error every time anyone requests table */
+  return rif;
 }
 
 static void
@@ -864,7 +865,8 @@ rip_store_tmp_attrs(struct rte *rt, struct ea_list *attrs)
  * own), so store it into our data structures. 
  */
 static void
-rip_rt_notify(struct proto *p, struct network *net, struct rte *new, struct rte *old, struct ea_list *attrs)
+rip_rt_notify(struct proto *p, struct rtable *table UNUSED, struct network *net,
+	      struct rte *new, struct rte *old, struct ea_list *attrs)
 {
   CHK_MAGIC;
 
@@ -955,7 +957,7 @@ rip_rte_insert(net *net UNUSED, rte *rte)
 static void
 rip_rte_remove(net *net UNUSED, rte *rte)
 {
-  struct proto *p = rte->attrs->proto;
+  // struct proto *p = rte->attrs->proto;
   CHK_MAGIC;
   DBG( "rip_rte_remove: %p\n", rte );
   rem_node( &rte->u.rip.garbage );

proto/static/static.c

@@ -125,11 +125,12 @@ static_shutdown(struct proto *p)
   struct static_config *c = (void *) p->cf;
   struct static_route *r;
 
-  DBG("Static: prepare for landing!\n");
+  /* Just reset the flag, the routes will be flushed by the nest */
   WALK_LIST(r, c->iface_routes)
-    static_remove(p, r);
+    r->installed = 0;
   WALK_LIST(r, c->other_routes)
-    static_remove(p, r);
+    r->installed = 0;
+
   return PS_DOWN;
 }
 
@@ -294,7 +295,7 @@ static_show_rt(struct static_route *r)
   switch (r->dest)
     {
     case RTD_ROUTER:	bsprintf(via, "via %I", r->via); break;
-    case RTD_DEVICE:	bsprintf(via, "to %s", r->if_name); break;
+    case RTD_DEVICE:	bsprintf(via, "dev %s", r->if_name); break;
     case RTD_BLACKHOLE:	bsprintf(via, "blackhole"); break;
     case RTD_UNREACHABLE:	bsprintf(via, "unreachable"); break;
     case RTD_PROHIBIT:	bsprintf(via, "prohibited"); break;

sysdep/bsd/krt-sock.c

@@ -33,39 +33,8 @@
 #include "lib/string.h"
 #include "lib/socket.h"
 
-#ifdef IPV6
-#define HOST_MASK 128
-#else
-#define HOST_MASK 32
-#endif
-
 int rt_sock = 0;
 
-#define CHECK_FAMILY(sa) \
-  ((((struct sockaddr *)sa)->sa_family) == BIRD_AF)
-
-static struct iface *
-krt_temp_iface_index(struct krt_proto *p, unsigned index)
-{
-  struct iface *i, *j;
-
-  WALK_LIST(i, p->scan.temp_ifs)
-    if (i->index == index)
-      return i;
-  i = mb_allocz(p->p.pool, sizeof(struct iface));
-  if (j = if_find_by_index(index))
-  {
-    strcpy(i->name, j->name);
-    i->addr = j->addr;
-  }
-  else
-    strcpy(i->name, "?");
-  i->index = index;
-  add_tail(&p->scan.temp_ifs, &i->n);
-  return i;
-}
-
-
 int
 krt_capable(rte *e)
 {
@@ -83,7 +52,7 @@ krt_capable(rte *e)
      || a->dest == RTD_UNREACHABLE
 #endif
 #ifdef RTF_BLACKHOLE
-     || a->dest == RTD_BLACKHOLE	/* FIXME Prohibited? */
+     || a->dest == RTD_BLACKHOLE
 #endif
      );
 }
@@ -96,6 +65,13 @@ krt_capable(rte *e)
           l = ROUNDUP(((struct sockaddr *)&(u))->sa_len);\
           memmove(body, &(u), l); body += l;}
 
+#define GETADDR(p, F) \
+  bzero(p, sizeof(*p));\
+  if ((addrs & (F)) && ((struct sockaddr *)body)->sa_len) {\
+    unsigned int l = ROUNDUP(((struct sockaddr *)body)->sa_len);\
+    memcpy(p, body, (l > sizeof(*p) ? sizeof(*p) : l));\
+    body += l;}
+
 static void
 krt_sock_send(int cmd, rte *e)
 {
@@ -108,7 +84,7 @@ krt_sock_send(int cmd, rte *e)
   char *body = (char *)msg.buf;
   sockaddr gate, mask, dst;
 
-  DBG("krt-sock: send %I/%d via %I", net->n.prefix, net->n.pxlen, a->gw);
+  DBG("krt-sock: send %I/%d via %I\n", net->n.prefix, net->n.pxlen, a->gw);
 
   fill_in_sockaddr(&dst, net->n.prefix, 0);
   fill_in_sockaddr(&mask, ipa_mkmask(net->n.pxlen), 0);
@@ -119,9 +95,9 @@ krt_sock_send(int cmd, rte *e)
   msg.rtm.rtm_type = cmd;
   msg.rtm.rtm_seq = msg_seq++;
   msg.rtm.rtm_addrs = RTA_DST;
-  msg.rtm.rtm_flags = RTF_UP;
+  msg.rtm.rtm_flags = RTF_UP | RTF_PROTO1;
 
-  if (net->n.pxlen == HOST_MASK)
+  if (net->n.pxlen == MAX_PREFIX_LENGTH)
   {
     msg.rtm.rtm_flags |= RTF_HOST;
   }
@@ -200,12 +176,12 @@ krt_sock_send(int cmd, rte *e)
   msg.rtm.rtm_msglen = l;
 
   if ((l = write(rt_sock, (char *)&msg, l)) < 0) {
-          log(L_ERR "KIF: error writting route to socket (%I/%d)", net->n.prefix, net->n.pxlen);
+    log(L_ERR "KIF: Error sending route %I/%d to kernel", net->n.prefix, net->n.pxlen);
   }
 }
 
 void
-krt_set_notify(struct krt_proto *p UNUSED, net *net UNUSED, rte *new, rte *old)
+krt_set_notify(struct krt_proto *p UNUSED, net *net, rte *new, rte *old)
 {
   if (old)
     {
@@ -258,68 +234,87 @@ krt_set_start(struct krt_proto *x, int first UNUSED)
     bug("krt-sock: sk_open failed");
 }
 
+#define SKIP(ARG...) do { DBG("KRT: Ignoring route - " ARG); return; } while(0)
+
 static void
 krt_read_rt(struct ks_msg *msg, struct krt_proto *p, int scan)
 {
-  sockaddr gate, mask, dst;
   rta a;
   rte *e;
   net *net;
+  sockaddr dst, gate, mask;
   ip_addr idst, igate, imask;
   void *body = (char *)msg->buf;
   int new = (msg->rtm.rtm_type == RTM_ADD);
   int src;
+  char *errmsg = "KRT: Invalid route received";
   int flags = msg->rtm.rtm_flags;
   int addrs = msg->rtm.rtm_addrs;
-  int masklen = -1;
 
-  if (!(flags & RTF_UP))
+  if (!(flags & RTF_UP) && scan)
-  {
+    SKIP("not up in scan\n");
-    DBG("Down.\n");
-    return;
-  }
 
-  if (flags & RTF_HOST)
+  if (!(flags & RTF_DONE) && !scan)
-    masklen = HOST_MASK;
+    SKIP("not done in async\n");
 
-  if(!CHECK_FAMILY(body)) return;
+  if (flags & RTF_LLINFO)
+    SKIP("link-local\n");
 
-  if(msg->rtm.rtm_flags & RTF_LLINFO) return;	/* ARPs etc. */
+  GETADDR(&dst, RTA_DST);
+  GETADDR(&gate, RTA_GATEWAY);
+  GETADDR(&mask, RTA_NETMASK);
 
-#define GETADDR(p, F) \
+  if (sa_family_check(&dst))
-  bzero(p, sizeof(*p));\
+    get_sockaddr(&dst, &idst, NULL, 0);
-  if ((addrs & (F)) && ((struct sockaddr *)body)->sa_len) {\
+  else
-    unsigned int l = ROUNDUP(((struct sockaddr *)body)->sa_len);\
+    SKIP("invalid DST");
-    memcpy(p, body, (l > sizeof(*p) ? sizeof(*p) : l));\
-    body += l;}
 
-  GETADDR (&dst, RTA_DST);
+  /* We will check later whether we have valid gateway addr */
-  GETADDR (&gate, RTA_GATEWAY);
+  if (sa_family_check(&gate))
-  GETADDR (&mask, RTA_NETMASK);
+    get_sockaddr(&gate, &igate, NULL, 0);
+  else
+    igate = IPA_NONE;
 
-  idst = IPA_NONE;
+  /* We do not test family for RTA_NETMASK, because BSD sends us
-  igate = IPA_NONE;
+     some strange values, but interpreting them as IPv4/IPv6 works */
-  imask = IPA_NONE;
-
-  get_sockaddr(&dst, &idst, NULL, 0);
-  if(CHECK_FAMILY(&gate)) get_sockaddr(&gate, &igate, NULL, 0);
   get_sockaddr(&mask, &imask, NULL, 0);
 
-  if (masklen < 0) masklen = ipa_mklen(imask);
+  int c = ipa_classify_net(idst);
+  if ((c < 0) || !(c & IADDR_HOST) || ((c & IADDR_SCOPE_MASK) <= SCOPE_LINK))
+    SKIP("strange class/scope\n");
+
+  int pxlen = (flags & RTF_HOST) ? MAX_PREFIX_LENGTH : ipa_mklen(imask);
+  if (pxlen < 0)
+    { log(L_ERR "%s (%I) - netmask %I", errmsg, idst, imask); return; }
+
+  if ((flags & RTF_GATEWAY) && ipa_zero(igate))
+    { log(L_ERR "%s (%I/%d) - missing gateway", errmsg, idst, pxlen); return; }
+
+  u32 self_mask = RTF_PROTO1;
+  u32 alien_mask = RTF_STATIC | RTF_PROTO1;
+
+#ifdef RTF_PROTO2
+  alien_mask |= RTF_PROTO2;
+#endif
+
+#ifdef RTF_PROTO3
+  alien_mask |= RTF_PROTO3;
+#endif
 
   if (flags & (RTF_DYNAMIC | RTF_MODIFIED))
-  {
+    src = KRT_SRC_REDIRECT;
-    log(L_WARN "krt: Ignoring redirect to %I/%d via %I", idst, masklen, igate);
+  else if (flags & self_mask)
-    return;
+    {
-  }
+      if (!scan)
+	SKIP("echo\n");
+      src = KRT_SRC_BIRD;
+    }
+  else if (flags & alien_mask)
+    src = KRT_SRC_ALIEN;
+  else
+    src = KRT_SRC_KERNEL;
 
-  if (masklen < 0)
+  net = net_get(p->p.table, idst, pxlen);
-  {
-    log(L_WARN "krt: Got invalid route from kernel!");
-    return;
-  }
-
-  net = net_get(p->p.table, idst, masklen);
 
   bzero(&a, sizeof(a));
 
@@ -333,56 +328,56 @@ krt_read_rt(struct ks_msg *msg, struct krt_proto *p, int scan)
   a.iface = NULL;
   a.eattrs = NULL;
 
-  a.dest = RTD_NONE;
+  /* reject/blackhole routes have also set RTF_GATEWAY,
-
+     we wil check them first. */
-  if (flags & RTF_GATEWAY)
-  {
-    neighbor *ng = neigh_find(&p->p, &igate, 0);
-    if (ng && ng->scope)
-      a.iface = ng->iface;
-    else
-      {
-	log(L_WARN "Kernel told us to use non-neighbor %I for %I/%d", igate, net->n.prefix, net->n.pxlen);
-	return;
-      }
-
-    a.dest = RTD_ROUTER;
-    a.gw = igate;
-  }
-  else
-  {
-    a.dest = RTD_DEVICE;
-    a.gw = IPA_NONE;
-    a.iface = krt_temp_iface_index(p, msg->rtm.rtm_index);
-  }
 
 #ifdef RTF_REJECT
   if(flags & RTF_REJECT) {
     a.dest = RTD_UNREACHABLE;
-    a.gw = IPA_NONE;
+    goto done;
   }
 #endif
 
 #ifdef RTF_BLACKHOLE
   if(flags & RTF_BLACKHOLE) {
     a.dest = RTD_BLACKHOLE;
-    a.gw = IPA_NONE;
+    goto done;
   }
 #endif
 
-  if (a.dest == RTD_NONE)
+  a.iface = if_find_by_index(msg->rtm.rtm_index);
+  if (!a.iface)
+    {
+      log(L_ERR "KRT: Received route %I/%d with unknown ifindex %u",
+	  net->n.prefix, net->n.pxlen, msg->rtm.rtm_index);
+      return;
+    }
+
+  if (flags & RTF_GATEWAY)
   {
-    log(L_WARN "Kernel reporting unknown route type to %I/%d", net->n.prefix, net->n.pxlen);
+    neighbor *ng;
-    return;
+    a.dest = RTD_ROUTER;
+    a.gw = igate;
+
+    ng = neigh_find2(&p->p, &a.gw, a.iface, 0);
+    if (!ng || (ng->scope == SCOPE_HOST))
+      {
+	log(L_ERR "KRT: Received route %I/%d with strange next-hop %I",
+	    net->n.prefix, net->n.pxlen, a.gw);
+	return;
+      }
   }
+  else
+    a.dest = RTD_DEVICE;
 
-  src = KRT_SRC_UNKNOWN;	/* FIXME */
+ done:
-
   e = rte_get_temp(&a);
   e->net = net;
   e->u.krt.src = src;
-  //e->u.krt.proto = i->rtm_protocol;
+
-  //e->u.krt.type = i->rtm_type;
+  /* These are probably too Linux-specific */
+  e->u.krt.proto = 0;
+  e->u.krt.type = 0;
   e->u.krt.metric = 0;
 
   if (scan)
@@ -471,6 +466,10 @@ krt_read_addr(struct ks_msg *msg)
   int scope, masklen = -1;
   int new = (ifam->ifam_type == RTM_NEWADDR);
 
+  /* Strange messages with zero (invalid) ifindex appear on OpenBSD */
+  if (ifam->ifam_index == 0)
+    return;
+
   if(!(iface = if_find_by_index(ifam->ifam_index)))
   {
     log(L_ERR "KIF: Received address message for unknown interface %d", ifam->ifam_index);
@@ -486,7 +485,9 @@ krt_read_addr(struct ks_msg *msg)
   GETADDR (&null, RTA_AUTHOR);
   GETADDR (&brd, RTA_BRD);
 
-  if(!CHECK_FAMILY(&addr)) return; /* Some other family address */
+  /* Some other family address */
+  if (!sa_family_check(&addr))
+    return;
 
   get_sockaddr(&addr, &iaddr, NULL, 0);
   get_sockaddr(&mask, &imask, NULL, 0);
@@ -507,9 +508,6 @@ krt_read_addr(struct ks_msg *msg)
   memcpy(&ifa.brd, &ibrd, sizeof(ip_addr));
 
   scope = ipa_classify(ifa.ip);
-
-  ifa.prefix = ipa_and(ifa.ip, ipa_mkmask(masklen));
-
   if (scope < 0)
   {
     log(L_ERR "KIF: Invalid interface address %I for %s", ifa.ip, iface->name);
@@ -517,6 +515,14 @@ krt_read_addr(struct ks_msg *msg)
   }
   ifa.scope = scope & IADDR_SCOPE_MASK;
 
+  if (iface->flags & IF_MULTIACCESS)
+    ifa.prefix = ipa_and(ifa.ip, ipa_mkmask(masklen));
+  else         /* PtP iface */
+  {
+    ifa.flags |= IA_UNNUMBERED;
+    ifa.prefix = ifa.opposite = ifa.brd;
+  }
+
   if (new)
     ifa_update(&ifa);
   else
@@ -593,27 +599,27 @@ krt_sysctl_scan(struct proto *p, pool *pool, byte **buf, size_t *bl, int cmd)
   mib[4] = cmd;
   mib[5] = 0;
 
-  if( sysctl(mib, 6 , NULL , &needed, NULL, 0) < 0)
+  if (sysctl(mib, 6 , NULL , &needed, NULL, 0) < 0)
   {
     die("RT scan...");
   }
 
   obl = *bl;
 
-  while(needed > *bl) *bl *= 2;
+  while (needed > *bl) *bl *= 2;
-  while(needed < (*bl/2)) *bl /= 2;
+  while (needed < (*bl/2)) *bl /= 2;
 
-  if( (obl!=*bl) || !*buf)
+  if ((obl!=*bl) || !*buf)
   {
-    if(*buf) mb_free(*buf);
+    if (*buf) mb_free(*buf);
-    if( (*buf = mb_alloc(pool, *bl)) == NULL ) die("RT scan buf alloc");
+    if ((*buf = mb_alloc(pool, *bl)) == NULL) die("RT scan buf alloc");
   }
 
   on = needed;
 
-  if( sysctl(mib, 6 , *buf, &needed, NULL, 0) < 0)
+  if (sysctl(mib, 6 , *buf, &needed, NULL, 0) < 0)
   {
-    if(on != needed) return; 	/* The buffer size changed since last sysctl */
+    if (on != needed) return; 	/* The buffer size changed since last sysctl */
     die("RT scan 2");
   }
 
@@ -624,22 +630,23 @@ krt_sysctl_scan(struct proto *p, pool *pool, byte **buf, size_t *bl, int cmd)
   }
 }
 
+static byte *krt_buffer = NULL;
+static byte *kif_buffer = NULL;
+static size_t krt_buflen = 32768;
+static size_t kif_buflen = 4096;
+
 void
 krt_scan_fire(struct krt_proto *p)
 {
-  static byte *buf = NULL;
+  krt_sysctl_scan((struct proto *)p, p->krt_pool, &krt_buffer, &krt_buflen, NET_RT_DUMP);
-  static size_t bl = 32768;
-  krt_sysctl_scan((struct proto *)p , p->krt_pool, &buf, &bl, NET_RT_DUMP);
 }
 
 void
 krt_if_scan(struct kif_proto *p)
 {
-  static byte *buf = NULL;
-  static size_t bl = 4096;
   struct proto *P = (struct proto *)p;
   if_start_update();
-  krt_sysctl_scan(P, P->pool, &buf, &bl, NET_RT_IFLIST);
+  krt_sysctl_scan(P, P->pool, &kif_buffer, &kif_buflen, NET_RT_IFLIST);
   if_end_update();
 }
 
@@ -652,7 +659,9 @@ krt_set_construct(struct krt_config *c UNUSED)
 void
 krt_set_shutdown(struct krt_proto *x UNUSED, int last UNUSED)
 {
-} 
+  mb_free(krt_buffer);
+  krt_buffer = NULL;
+}
 
 void
 krt_if_io_init(void)
@@ -672,5 +681,7 @@ krt_if_start(struct kif_proto *p UNUSED)
 void
 krt_if_shutdown(struct kif_proto *p UNUSED)
 {
+  mb_free(kif_buffer);
+  kif_buffer = NULL;
 }
 

sysdep/cf/bsd-v6.h

@@ -9,7 +9,7 @@
 #define IPV6
 
 #define CONFIG_AUTO_ROUTES
-#undef CONFIG_SELF_CONSCIOUS
+#define CONFIG_SELF_CONSCIOUS
 #undef CONFIG_MULTIPLE_TABLES
 
 #undef CONFIG_UNIX_IFACE

sysdep/cf/bsd.h

@@ -7,7 +7,7 @@
  */
 
 #define CONFIG_AUTO_ROUTES
-#undef CONFIG_SELF_CONSCIOUS
+#define CONFIG_SELF_CONSCIOUS
 #undef CONFIG_MULTIPLE_TABLES
 
 #undef CONFIG_UNIX_IFACE

sysdep/linux/netlink/netlink.c

@@ -52,7 +52,6 @@ struct nl_sock
 static struct nl_sock nl_scan = {.fd = -1};	/* Netlink socket for synchronous scan */
 static struct nl_sock nl_req  = {.fd = -1};	/* Netlink socket for requests */
 
-
 static void
 nl_open_sock(struct nl_sock *nl)
 {
@@ -555,23 +554,7 @@ krt_set_notify(struct krt_proto *p, net *n UNUSED, rte *new, rte *old)
     nl_send_route(p, new, 1);
 }
 
-static struct iface *
+#define SKIP(ARG...) do { DBG("KRT: Ignoring route - " ARG); return; } while(0)
-krt_temp_iface(struct krt_proto *p, unsigned index)
-{
-  struct iface *i, *j;
-
-  WALK_LIST(i, p->scan.temp_ifs)
-    if (i->index == index)
-      return i;
-  i = mb_allocz(p->p.pool, sizeof(struct iface));
-  if (j = if_find_by_index(index))
-    strcpy(i->name, j->name);
-  else
-    strcpy(i->name, "?");
-  i->index = index;
-  add_tail(&p->scan.temp_ifs, &i->n);
-  return i;
-}
 
 static void
 nl_parse_route(struct nlmsghdr *h, int scan)
@@ -599,31 +582,7 @@ nl_parse_route(struct nlmsghdr *h, int scan)
 #endif
       (a[RTA_GATEWAY] && RTA_PAYLOAD(a[RTA_GATEWAY]) != sizeof(ip_addr)))
     {
-      log(L_ERR "nl_parse_route: Malformed message received");
+      log(L_ERR "KRT: Malformed message received");
-      return;
-    }
-
-  p = nl_table_map[i->rtm_table];	/* Do we know this table? */
-  if (!p)
-    return;
-
-#ifdef IPV6
-  if (a[RTA_IIF])
-    {
-      DBG("KRT: Ignoring route with IIF set\n");
-      return;
-    }
-#else
-  if (i->rtm_tos != 0)			/* We don't support TOS */
-    {
-      DBG("KRT: Ignoring route with TOS %02x\n", i->rtm_tos);
-      return;
-    }
-#endif
-
-  if (scan && !new)
-    {
-      DBG("KRT: Ignoring route deletion\n");
       return;
     }
 
@@ -634,33 +593,57 @@ nl_parse_route(struct nlmsghdr *h, int scan)
     }
   else
     dst = IPA_NONE;
+
   if (a[RTA_OIF])
     memcpy(&oif, RTA_DATA(a[RTA_OIF]), sizeof(oif));
   else
     oif = ~0;
 
-  DBG("Got %I/%d, type=%d, oif=%d, table=%d, prid=%d, proto=%s\n", dst, i->rtm_dst_len, i->rtm_type, oif, i->rtm_table, i->rtm_protocol, p->p.name);
+  DBG("KRT: Got %I/%d, type=%d, oif=%d, table=%d, prid=%d, proto=%s\n", dst, i->rtm_dst_len, i->rtm_type, oif, i->rtm_table, i->rtm_protocol, p->p.name);
+
+  p = nl_table_map[i->rtm_table];	/* Do we know this table? */
+  if (!p)
+    SKIP("unknown table %d", i->rtm_table);
+
+#ifdef IPV6
+  if (a[RTA_IIF])
+    SKIP("IIF set\n");
+#else
+  if (i->rtm_tos != 0)			/* We don't support TOS */
+    SKIP("TOS %02x\n", i->rtm_tos);
+#endif
+
+  if (scan && !new)
+    SKIP("RTM_DELROUTE in scan\n");
+
+  int c = ipa_classify_net(dst);
+  if ((c < 0) || !(c & IADDR_HOST) || ((c & IADDR_SCOPE_MASK) <= SCOPE_LINK))
+    SKIP("strange class/scope\n");
+
+  // ignore rtm_scope, it is not a real scope
+  // if (i->rtm_scope != RT_SCOPE_UNIVERSE)
+  //   SKIP("scope %u\n", i->rtm_scope);
 
   switch (i->rtm_protocol)
     {
+    case RTPROT_UNSPEC:
+      SKIP("proto unspec\n");
+
     case RTPROT_REDIRECT:
       src = KRT_SRC_REDIRECT;
       break;
+
     case RTPROT_KERNEL:
-      DBG("Route originated in kernel, ignoring\n");
+      src = KRT_SRC_KERNEL;
       return;
+
     case RTPROT_BIRD:
-#ifdef IPV6
-    case RTPROT_BOOT:
-      /* Current Linux kernels don't remember rtm_protocol for IPv6 routes and supply RTPROT_BOOT instead */
-#endif
       if (!scan)
-	{
+	SKIP("echo\n");
-	  DBG("Echo of our own route, ignoring\n");
-	  return;
-	}
       src = KRT_SRC_BIRD;
       break;
+
+    case RTPROT_BOOT:
     default:
       src = KRT_SRC_ALIEN;
     }
@@ -679,52 +662,48 @@ nl_parse_route(struct nlmsghdr *h, int scan)
   switch (i->rtm_type)
     {
     case RTN_UNICAST:
-      if (oif == ~0U)
+      ra.iface = if_find_by_index(oif);
+      if (!ra.iface)
 	{
-	  log(L_ERR "KRT: Mysterious route with no OIF (%I/%d)", net->n.prefix, net->n.pxlen);
+	  log(L_ERR "KRT: Received route %I/%d with unknown ifindex %u",
+	      net->n.prefix, net->n.pxlen, oif);
 	  return;
 	}
+
       if (a[RTA_GATEWAY])
 	{
-	  struct iface *ifa = if_find_by_index(oif);
 	  neighbor *ng;
 	  ra.dest = RTD_ROUTER;
 	  memcpy(&ra.gw, RTA_DATA(a[RTA_GATEWAY]), sizeof(ra.gw));
 	  ipa_ntoh(ra.gw);
 
-	  if (i->rtm_flags & RTNH_F_ONLINK)
+	  ng = neigh_find2(&p->p, &ra.gw, ra.iface,
+			   (i->rtm_flags & RTNH_F_ONLINK) ? NEF_ONLINK : 0);
+	  if (!ng || (ng->scope == SCOPE_HOST))
 	    {
-	      /* route with 'onlink' attribute */
+	      log(L_ERR "KRT: Received route %I/%d with strange next-hop %I",
-	      ra.iface = if_find_by_index(oif);
+		  net->n.prefix, net->n.pxlen, ra.gw);
-	      if (ra.iface == NULL)
+	      return;
-		{
-		  log(L_WARN "Kernel told us to use unknown interface %u for %I/%d",
-		      oif, net->n.prefix, net->n.pxlen);
-		  return;
-		}
-	    }
-	  else
-	    {
-	      ng = neigh_find2(&p->p, &ra.gw, ifa, 0);
-	      if (ng && ng->scope)
-		{
-		  if (ng->iface != ifa)
-		    log(L_WARN "KRT: Route with unexpected iface for %I/%d", net->n.prefix, net->n.pxlen);
-		  ra.iface = ng->iface;
-		}
-	      else
-		{
-		  log(L_WARN "Kernel told us to use non-neighbor %I for %I/%d", ra.gw, net->n.prefix, net->n.pxlen);
-		  return;
-		}
-
 	    }
 	}
       else
 	{
 	  ra.dest = RTD_DEVICE;
-	  ra.iface = krt_temp_iface(p, oif);
+
+	  /*
+	   * In Linux IPv6, 'native' device routes have proto
+	   * RTPROT_BOOT and not RTPROT_KERNEL (which they have in
+	   * IPv4 and which is expected). We cannot distinguish
+	   * 'native' and user defined device routes, so we ignore all
+	   * such device routes and for consistency, we have the same
+	   * behavior in IPv4. Anyway, users should use RTPROT_STATIC
+	   * for their 'alien' routes.
+	   */
+
+	  if (i->rtm_protocol == RTPROT_BOOT)
+	    src = KRT_SRC_KERNEL;
 	}
+
       break;
     case RTN_BLACKHOLE:
       ra.dest = RTD_BLACKHOLE;
@@ -737,13 +716,7 @@ nl_parse_route(struct nlmsghdr *h, int scan)
       break;
     /* FIXME: What about RTN_THROW? */
     default:
-      DBG("KRT: Ignoring route with type=%d\n", i->rtm_type);
+      SKIP("type %d\n", i->rtm_type);
-      return;
-    }
-
-  if (i->rtm_scope != RT_SCOPE_UNIVERSE)
-    {
-      DBG("KRT: Ignoring route with scope=%d\n", i->rtm_scope);
       return;
     }
 

sysdep/linux/sysio.h

@@ -101,7 +101,7 @@ struct ip_mreqn
 #define fill_mreq_ifa fill_mreq
 #define fill_mreq_grp fill_mreq
 
-static inline fill_mreq(struct ip_mreqn *m, struct iface *ifa, ip_addr maddr)
+static inline void fill_mreq(struct ip_mreqn *m, struct iface *ifa, ip_addr maddr)
 {
   bzero(m, sizeof(*m));
   m->imr_ifindex = ifa->index;

sysdep/unix/config.Y

@@ -107,7 +107,7 @@ CF_CLI(CONFIGURE SOFT, cfg_name, [\"<file>\"], [[Reload configuration and ignore
 { cmd_reconfig($3, RECONFIG_SOFT); } ;
 
 CF_CLI(DOWN,,, [[Shut the daemon down]])
-{ cli_msg(7, "Shutdown requested"); order_shutdown(); } ;
+{ cmd_shutdown(); } ;
 
 cfg_name:
    /* empty */ { $$ = NULL; }

sysdep/unix/io.c

@@ -70,7 +70,8 @@ static struct resclass rf_class = {
   "FILE",
   sizeof(struct rfile),
   rf_free,
-  rf_dump
+  rf_dump,
+  NULL
 };
 
 void *
@@ -195,7 +196,8 @@ static struct resclass tm_class = {
   "Timer",
   sizeof(timer),
   tm_free,
-  tm_dump
+  tm_dump,
+  NULL
 };
 
 /**
@@ -564,7 +566,8 @@ static struct resclass sk_class = {
   "Socket",
   sizeof(sock),
   sk_free,
-  sk_dump
+  sk_dump,
+  NULL
 };
 
 /**
@@ -640,7 +643,7 @@ fill_in_sockaddr(sockaddr *sa, ip_addr a, unsigned port)
 }
 
 static inline void
-fill_in_sockifa(sockaddr *sa, struct iface *ifa)
+fill_in_sockifa(sockaddr *sa UNUSED, struct iface *ifa UNUSED)
 {
 }
 
@@ -660,7 +663,6 @@ get_sockaddr(struct sockaddr_in *sa, ip_addr *a, unsigned *port, int check)
 static char *
 sk_set_ttl_int(sock *s)
 {
-  int one = 1;
 #ifdef IPV6
   if (setsockopt(s->fd, SOL_IPV6, IPV6_UNICAST_HOPS, &s->ttl, sizeof(s->ttl)) < 0)
     return "IPV6_UNICAST_HOPS";
@@ -668,6 +670,7 @@ sk_set_ttl_int(sock *s)
   if (setsockopt(s->fd, SOL_IP, IP_TTL, &s->ttl, sizeof(s->ttl)) < 0)
     return "IP_TTL";
 #ifdef CONFIG_UNIX_DONTROUTE
+  int one = 1;
   if (s->ttl == 1 && setsockopt(s->fd, SOL_SOCKET, SO_DONTROUTE, &one, sizeof(one)) < 0)
     return "SO_DONTROUTE";
 #endif 
@@ -1012,7 +1015,6 @@ sk_passive_connected(sock *s, struct sockaddr *sa, int al, int type)
     }
   else if (errno != EINTR && errno != EAGAIN)
     {
-      log(L_ERR "accept: %m");
       s->err_hook(s, errno);
     }
   return 0;
@@ -1602,7 +1604,6 @@ io_loop(void)
 	    {
 	      sock *s = current_sock;
 	      int e;
-	      int steps;
 
 	      if ((s->type < SK_MAGIC) && FD_ISSET(s->fd, &rd) && s->rx_hook)
 		{

sysdep/unix/krt.c

@@ -139,15 +139,6 @@ kif_shutdown(struct proto *P)
   krt_if_shutdown(p);
   kif_proto = NULL;
 
-  if_start_update();	/* Remove all interfaces */
-  if_end_update();
-  /*
-   *  FIXME: Is it really a good idea?  It causes routes to be flushed,
-   *  but at the same time it avoids sending of these deletions to the kernel,
-   *  because krt thinks the kernel itself has already removed the route
-   *  when downing the interface.  Sad.
-   */
-
   return PS_DOWN;
 }
 
@@ -558,32 +549,30 @@ krt_got_route(struct krt_proto *p, rte *e)
   rte *old;
   net *net = e->net;
   int verdict;
-#ifdef KRT_ALLOW_LEARN
-  int src = e->u.krt.src;
-#endif
 
-#ifdef CONFIG_AUTO_ROUTES
+#ifdef KRT_ALLOW_LEARN
-  if (e->attrs->dest == RTD_DEVICE)
+  switch (e->u.krt.src)
     {
-      /* It's a device route. Probably a kernel-generated one. */
+    case KRT_SRC_KERNEL:
       verdict = KRF_IGNORE;
       goto sentenced;
-    }
-#endif
 
-#ifdef KRT_ALLOW_LEARN
+    case KRT_SRC_REDIRECT:
-  if (src == KRT_SRC_ALIEN)
+      verdict = KRF_DELETE;
-    {
+      goto sentenced;
+
+    case  KRT_SRC_ALIEN:
       if (KRT_CF->learn)
 	krt_learn_scan(p, e);
       else
 	{
-	  krt_trace_in_rl(&rl_alien_ignored, p, e, "alien route, ignored");
+	  krt_trace_in_rl(&rl_alien_ignored, p, e, "[alien] ignored");
 	  rte_free(e);
 	}
       return;
     }
 #endif
+  /* The rest is for KRT_SRC_BIRD (or KRT_SRC_UNKNOWN) */
 
   if (net->n.flags & KRF_VERDICT_MASK)
     {
@@ -605,7 +594,7 @@ krt_got_route(struct krt_proto *p, rte *e)
   else
     verdict = KRF_DELETE;
 
-sentenced:
+ sentenced:
   krt_trace_in(p, e, ((char *[]) { "?", "seen", "will be updated", "will be removed", "ignored" }) [verdict]);
   net->n.flags = (net->n.flags & ~KRF_VERDICT_MASK) | verdict;
   if (verdict == KRF_UPDATE || verdict == KRF_DELETE)
@@ -680,19 +669,24 @@ krt_prune(struct krt_proto *p)
 }
 
 void
-krt_got_route_async(struct krt_proto *p, rte *e, int new UNUSED)
+krt_got_route_async(struct krt_proto *p, rte *e, int new)
 {
   net *net = e->net;
-  int src = e->u.krt.src;
 
-  switch (src)
+  switch (e->u.krt.src)
     {
     case KRT_SRC_BIRD:
       ASSERT(0);			/* Should be filtered by the back end */
+
     case KRT_SRC_REDIRECT:
-      DBG("It's a redirect, kill him! Kill! Kill!\n");
+      if (new)
-      krt_set_notify(p, net, NULL, e);
+	{
+	  krt_trace_in(p, e, "[redirect] deleting");
+	  krt_set_notify(p, net, NULL, e);
+	}
+      /* If !new, it is probably echo of our deletion */
       break;
+
 #ifdef KRT_ALLOW_LEARN
     case KRT_SRC_ALIEN:
       if (KRT_CF->learn)
@@ -742,7 +736,8 @@ krt_scan(timer *t UNUSED)
  */
 
 static void
-krt_notify(struct proto *P, net *net, rte *new, rte *old, struct ea_list *attrs UNUSED)
+krt_notify(struct proto *P, struct rtable *table UNUSED, net *net,
+	   rte *new, rte *old, struct ea_list *attrs UNUSED)
 {
   struct krt_proto *p = (struct krt_proto *) P;
 
@@ -877,7 +872,6 @@ krt_init(struct proto_config *c)
 
   p->p.accept_ra_types = RA_OPTIMAL;
   p->p.rt_notify = krt_notify;
-  p->p.min_scope = SCOPE_HOST;
   return &p->p;
 }
 

sysdep/unix/krt.h

@@ -83,6 +83,7 @@ void krt_got_route_async(struct krt_proto *p, struct rte *e, int new);
 #define KRT_SRC_BIRD	 0	/* Our route (not passed in async mode) */
 #define KRT_SRC_REDIRECT 1	/* Redirect route, delete it */
 #define KRT_SRC_ALIEN	 2	/* Route installed by someone else */
+#define KRT_SRC_KERNEL	 3	/* Kernel routes, are ignored by krt syncer */
 
 extern struct protocol proto_unix_iface;
 

sysdep/unix/log.c

@@ -19,6 +19,7 @@
 #include <stdlib.h>
 #include <stdarg.h>
 #include <time.h>
+#include <unistd.h>
 
 #include "nest/bird.h"
 #include "nest/cli.h"

sysdep/unix/main.c

@@ -141,6 +141,9 @@ cmd_reconfig(char *name, int type)
 {
   struct config *conf;
 
+  if (cli_access_restricted())
+    return;
+
   if (!name)
     name = config_name;
   cli_msg(-2, "Reading configuration from %s", name);
@@ -303,6 +306,16 @@ cli_init_unix(void)
  *	Shutdown
  */
 
+void
+cmd_shutdown(void)
+{
+  if (cli_access_restricted())
+    return;
+
+  cli_msg(7, "Shutdown requested");
+  order_shutdown();
+}
+
 void
 async_shutdown(void)
 {

sysdep/unix/unix.h

@@ -9,6 +9,8 @@
 #ifndef _BIRD_UNIX_H_
 #define _BIRD_UNIX_H_
 
+#include <sys/socket.h>
+
 struct pool;
 
 /* main.c */
@@ -17,6 +19,7 @@ void async_config(void);
 void async_dump(void);
 void async_shutdown(void);
 void cmd_reconfig(char *name, int type);
+void cmd_shutdown(void);
 
 /* io.c */
 
@@ -28,10 +31,12 @@ volatile int async_shutdown_flag;
 #define BIRD_PF PF_INET6
 #define BIRD_AF AF_INET6
 typedef struct sockaddr_in6 sockaddr;
+static inline int sa_family_check(sockaddr *sa) { return sa->sin6_family == AF_INET6; }
 #else
 #define BIRD_PF PF_INET
 #define BIRD_AF AF_INET
 typedef struct sockaddr_in sockaddr;
+static inline int sa_family_check(sockaddr *sa) { return sa->sin_family == AF_INET; }
 #endif
 
 #ifndef SUN_LEN

tools/Makefile.in

@@ -55,7 +55,7 @@ tags:
 	cd $(srcdir) ; etags -lc `find $(static-dirs) $(addprefix $(objdir)/,$(dynamic-dirs)) $(client-dirs) -name *.[chY]`
 
 install: all
-	$(INSTALL) -d $(DESTDIR)/$(sbindir) $(DESTDIR)/$(sysconfdir) $(DESTDIR)/$(localstatedir)
+	$(INSTALL) -d $(DESTDIR)/$(sbindir) $(DESTDIR)/$(sysconfdir) $(DESTDIR)/$(localstatedir)/run
 	$(INSTALL_PROGRAM) -s $(exedir)/bird $(DESTDIR)/$(sbindir)/bird@SUFFIX6@
 	if test -n "@CLIENT@" ; then								\
 		$(INSTALL_PROGRAM) -s $(exedir)/birdc $(DESTDIR)/$(sbindir)/birdc@SUFFIX6@ ;				\