mcast-tools: add initial port

6 files changed, 547 insertions, 0 deletions

diff --git a/mcast-tools/Makefile b/mcast-tools/Makefile
new file mode 100644
index 0000000..7a918bd
--- /dev/null
+++ b/mcast-tools/Makefile
@@ -0,0 +1,62 @@
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=mcast-tools
+PKG_SOURCE_VERSION:=e5c860f174c6deb4cc30211e895831aca0a55b7f
+PKG_VERSION:=2014-04-06
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/F0rth/mcast-tools.git
+PKG_MAINTAINER:=Steven Barth <cyrus@openwrt.org>
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+
+include $(INCLUDE_DIR)/package.mk
+
+CONFIGURE_ARGS+=--enable-mldv2host --disable-pim6dd --disable-mcastread --disable-mcastsend --disable-mfc --disable-mtrace6 --disable-pmsft
+TARGET_CFLAGS+=-DIP6OPT_RTALERT_LEN=4 -D_GNU_SOURCE
+
+define Package/pim6sd
+  SECTION:=net
+  CATEGORY:=Network
+  SUBMENU:=Routing and Redirection
+  TITLE:=Sparse PIM IPv6 Multicast Routing Daemon
+endef
+
+define Package/pim6sd/description
+ pim6sd is an IPv6 multicast routing daemon, which supports PIMv2(Protocol
+ Independent Multicast Version 2) sparse mode and SSM(Source-Specific-
+ Multicast) for IPv6.
+endef
+
+define Package/pim6sd/conffiles
+/etc/pim6sd.conf
+endef
+
+define Build/Prepare
+	$(call Build/Prepare/Default)
+	( cd $(PKG_BUILD_DIR) ; \
+		aclocal ; \
+		autoheader ; \
+		automake --add-missing; \
+		autoconf ; \
+	)
+endef
+
+define Package/pim6sd/install
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_CONF) ./files/pim6sd.conf $(1)/etc
+	$(INSTALL_BIN) ./files/pim6sd.init $(1)/etc/init.d/pim6sd
+	$(INSTALL_DIR) $(1)/usr/sbin
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/pim6sd/pim6sd $(1)/usr/sbin/pim6sd
+endef
+
+$(eval $(call BuildPackage,pim6sd))
diff --git a/mcast-tools/files/pim6sd.conf b/mcast-tools/files/pim6sd.conf
new file mode 100644
index 0000000..63e1223
--- /dev/null
+++ b/mcast-tools/files/pim6sd.conf
@@ -0,0 +1,105 @@
+#The timer granularity.
+#More this value is small,more pim6sd will be accurate 
+#default if not specified : 5
+#BE SURE to have to same granularity on ALL routers,
+#otherwise....
+
+#granularity 5;
+
+#syntax : phyint <interface> <disable> <metric> [metric] <preference> [preference]
+#metric and pref are for the asserts messages
+#samples :
+
+#phyint ed1 disable;
+#phyint de0 disable;
+#phyint ed0 disable;
+#phyint gif0 disable;
+
+#---------------Protocol timer specifications---------------------------#
+#Notes : theses value are the default spec value!
+#do not touch it if you don't know what you do!!
+#you MUST change theses values according to the granularity value!
+#syntax :  'hello_period <number> <coef>'.
+# number is the period in second between 2 hello messages
+# and coef is the coef to determine the hello holdtime=hello_period*coef
+# default if not specified: 30 3.5
+
+#hello_period 30 3.5;
+
+#syntax :  'join_prune_period <number> <coef>'.
+# number is the period in second between 2 join/prune messages
+# and coef is the coef to determine the join/prune holdtime=join_prune_period*coef
+# default if not specified : 60 3.5
+
+#join_prune_period 60 3.5;
+
+#syntax :  'data_timeout <number>'.
+# number is the time after which (S,G) state for a silent source will be deleted
+# default if not specified  : 210 
+
+#data_timeout 210;
+
+#syntax :  'register_suppression_timeout <number>'.
+# This is the mean interval between receiving a Register-Stop and allowing
+#Register to be send again.
+# default if not specified  : 60
+
+#register_suppression_timeout 60;
+
+#syntax :  'probe_time <number>'.
+#This is the time between sending a null Register and the Register-Suppression-Timer
+#expiring unless it is restarted by receiving a Register-Stop.
+#default if not specified : 5
+
+#probe_time 5;
+
+#syntax :  'assert_timeout <number>'.
+#this is the interval between the last time an Assert is received and the time at which the 
+#assert is timeout
+#default if not specified : 180
+
+#assert_timeout 180;
+
+#syntax : <cand_rp> <interface> <time> [time] <priority> [priority]
+#and time can't be <  10 
+#you can just type cand_rp, 
+#samples :
+#cand_rp;
+#cand_rp de0;
+#cand_rp ed0 priority 0 time 6;
+
+#syntax : <group_prefix> <multicast address>/<prefix length>
+#group_prefix ff06::15 
+#default if not specified : ff00::/8
+#samples:
+#group_prefix ff1e::15/128;
+#group_prefix ff2e::/16;
+
+#syntax : <cand_bootstrap_router> <interface> <priority> [priority] <time> [time]
+#Typically, you can simply set cand_bootstrap_router for a candidate bootstrap
+#router. All other parameters are optional.
+#the bootstrap period is configurable, BUT the holdtime of a bootstrap
+#router is not in the fields of a bootstrap message : it is hard-coded
+#in the pim6sd include file!
+#So be sure to have a time < PIM_BOOTSTRAP_TIMEOUT (file pimd.h )
+#cand_bootstrap_router de0 priority 15 time 5;
+
+#syntax : <switch_register_threshold> <rate> [number] <interval> [number]
+#default rate = 50000 interval = 20s
+#samples :
+#TODO : not tested
+#switch_register_threshold rate 54389 interval 45;
+#switch_register_threshold;
+
+#syntax : <switch_data_threshold> <rate> [number] <interval> [number]
+#default rate = 50000 interval = 20s
+#TODO : not tested
+#samples:
+#switch_data_threshold interval 100 rate 1000;
+
+#syntax : <default_source_metric> [number]
+
+#default_source_metric 1243;
+#syntax : <default_source_preference> [number]
+
+#default_source_preference 123 ;
diff --git a/mcast-tools/files/pim6sd.init b/mcast-tools/files/pim6sd.init
new file mode 100644
index 0000000..bb98ba3
--- /dev/null
+++ b/mcast-tools/files/pim6sd.init
@@ -0,0 +1,14 @@
+#!/bin/sh /etc/rc.common
+
+START=50
+USE_PROCD=1
+
+start_service() {
+	procd_open_instance
+
+	procd_set_param command /usr/sbin/pim6sd
+	procd_append_param command -f -c /etc/pim6sd.conf
+
+	procd_set_param respawn
+	procd_close_instance
+}
diff --git a/mcast-tools/patches/0001-Fix-compilation-on-recent-Linux.patch b/mcast-tools/patches/0001-Fix-compilation-on-recent-Linux.patch
new file mode 100644
index 0000000..0ef6884
--- /dev/null
+++ b/mcast-tools/patches/0001-Fix-compilation-on-recent-Linux.patch
@@ -0,0 +1,90 @@
+From 179b60f9d6a8a104fd8d1f810d105ddba914cc7a Mon Sep 17 00:00:00 2001
+From: Steven Barth <steven@midlink.org>
+Date: Thu, 3 Apr 2014 09:09:06 +0200
+Subject: [PATCH 1/3] Fix compilation on recent Linux
+
+---
+ pim6sd/debug.c | 6 +++---
+ pim6sd/mld6.c  | 8 ++++----
+ pim6sd/trace.c | 8 ++++++++
+ 3 files changed, 15 insertions(+), 7 deletions(-)
+
+diff --git a/pim6sd/debug.c b/pim6sd/debug.c
+index a06a876..a96e949 100644
+--- a/pim6sd/debug.c
++++ b/pim6sd/debug.c
+@@ -169,7 +169,7 @@ packet_kind(proto, type, code)
+ 	    return "Multicast Listener Query    ";
+ 	case MLD_LISTENER_REPORT:
+ 	    return "Multicast Listener Report   ";
+-	case MLD_LISTENER_DONE:
++	case MLD_LISTENER_REDUCTION:
+ 	    return "Multicast Listener Done     ";
+ 	default:
+ 	    snprintf(unknown, sizeof(unknown),
+@@ -230,7 +230,7 @@ debug_kind(proto, type, code)
+ 	    return DEBUG_MLD;
+ 	case MLD_LISTENER_REPORT:
+ 	    return DEBUG_MLD;
+-	case MLD_LISTENER_DONE:
++	case MLD_LISTENER_REDUCTION:
+ 	    return DEBUG_MLD;
+ 	default:
+ 	    return DEBUG_MLD;
+@@ -574,7 +574,7 @@ dump_nbrs(fp)
+ 				if (n->options_bitmap & PIM_HELLO_GENID_BIT)
+ 					fprintf(fp, " %-8x", n->genid);
+ 				else
+-					fprintf(fp, " %-8x", "-");
++					fprintf(fp, " %-8s", "-");
+ 				if (v->uv_pim_dr == n)
+ 					fprintf(fp, " D");
+ 				fprintf(fp, "\n");
+diff --git a/pim6sd/mld6.c b/pim6sd/mld6.c
+index d828bbf..0bac85d 100644
+--- a/pim6sd/mld6.c
++++ b/pim6sd/mld6.c
+@@ -207,9 +207,9 @@ init_mld6()
+ 
+     /* filter all non-MLD ICMP messages */
+     ICMP6_FILTER_SETBLOCKALL(&filt);
+-    ICMP6_FILTER_SETPASS(ICMP6_MEMBERSHIP_QUERY, &filt);
+-    ICMP6_FILTER_SETPASS(ICMP6_MEMBERSHIP_REPORT, &filt);
+-    ICMP6_FILTER_SETPASS(ICMP6_MEMBERSHIP_REDUCTION, &filt);
++    ICMP6_FILTER_SETPASS(MLD_LISTENER_QUERY, &filt);
++    ICMP6_FILTER_SETPASS(MLD_LISTENER_REPORT, &filt);
++    ICMP6_FILTER_SETPASS(MLD_LISTENER_REDUCTION, &filt);
+ #ifdef MLD_MTRACE_RESP
+     ICMP6_FILTER_SETPASS(MLD_MTRACE_RESP, &filt);
+     ICMP6_FILTER_SETPASS(MLD_MTRACE, &filt);
+@@ -448,7 +448,7 @@ accept_mld6(recvlen)
+ 		accept_listener_report(src, dst, group);
+ 		return;
+ 
+-	case MLD_LISTENER_DONE:
++	case MLD_LISTENER_REDUCTION:
+ 		accept_listener_done(src, dst, group);
+ 		return;
+ 
+diff --git a/pim6sd/trace.c b/pim6sd/trace.c
+index e361633..175c858 100644
+--- a/pim6sd/trace.c
++++ b/pim6sd/trace.c
+@@ -110,6 +110,14 @@
+ #include "rp.h"
+ #include "trace.h"
+ 
++#ifndef MLD_MTRACE_RESP
++#  define MLD_MTRACE_RESP     200
++#endif
++
++#ifndef MLD_MTRACE
++#  define MLD_MTRACE          201
++#endif
++
+ /* TODO */
+ /*
+  * Traceroute function which returns traceroute replies to the requesting
+-- 
+1.8.3.2
+
diff --git a/mcast-tools/patches/0002-Fix-configure.in-for-cross-compilation.patch b/mcast-tools/patches/0002-Fix-configure.in-for-cross-compilation.patch
new file mode 100644
index 0000000..47fce71
--- /dev/null
+++ b/mcast-tools/patches/0002-Fix-configure.in-for-cross-compilation.patch
@@ -0,0 +1,49 @@
+From 52e110289fcc0990688e16e640ca5e7f01c66bb1 Mon Sep 17 00:00:00 2001
+From: Steven Barth <steven@midlink.org>
+Date: Sun, 6 Apr 2014 17:46:42 +0200
+Subject: [PATCH 23/23] Fix configure.in for cross-compilation
+
+---
+ configure.in | 26 ++------------------------
+ 1 file changed, 2 insertions(+), 24 deletions(-)
+
+diff --git a/configure.in b/configure.in
+index b8446e2..e626a19 100644
+--- a/configure.in
++++ b/configure.in
+@@ -170,30 +170,8 @@ fi
+ AC_MSG_RESULT($enable_mldv2host)
+ 
+ dnl Determine routing get and set method
+-AC_MSG_CHECKING(userland-kernel interface for routing information)
+-AC_TRY_RUN([#include <errno.h>
+-#include <sys/types.h>
+-#include <sys/socket.h>
+-
+-main ()
+-{
+-#ifdef AF_NETLINK
+-  exit(1);
+-#else
+-  int ac_sock;
+-
+-  ac_sock = socket (AF_ROUTE, SOCK_RAW, 0);
+-  if (ac_sock < 0 && errno == EINVAL)
+-    exit (1);
+-  exit (0);
+-#endif
+-}],
+-	[AC_DEFINE(HAVE_ROUTING_SOCKETS)
+-	 UK_METHOD=routesock
+-	 AC_MSG_RESULT(routing socket)],
+-	[AC_DEFINE(HAVE_NETLINK)
+-	 UK_METHOD=netlink
+-	 AC_MSG_RESULT(netlink)])
++AC_DEFINE(HAVE_NETLINK)
++UK_METHOD=netlink
+ AC_SUBST(UK_METHOD)
+ 
+ dnl Checks for RFC3542
+-- 
+1.9.1
+
diff --git a/mcast-tools/patches/0003-Add-compatibility-code-for-uclibc.patch b/mcast-tools/patches/0003-Add-compatibility-code-for-uclibc.patch
new file mode 100644
index 0000000..55cec6a
--- /dev/null
+++ b/mcast-tools/patches/0003-Add-compatibility-code-for-uclibc.patch
@@ -0,0 +1,227 @@
+From 50bcf257f5f7d359d06744128585103f19072ee3 Mon Sep 17 00:00:00 2001
+From: Steven Barth <steven@midlink.org>
+Date: Thu, 10 Apr 2014 18:56:53 +0200
+Subject: [PATCH] Add compatibility code for uclibc
+
+---
+ pim6sd/cftoken.l      |   5 ++
+ pim6sd/inet6_compat.c | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++
+ pim6sd/mld6.c         |   4 ++
+ pim6sd/mld6v2.c       |   5 ++
+ 4 files changed, 175 insertions(+)
+ create mode 100644 pim6sd/inet6_compat.c
+
+diff --git a/pim6sd/cftoken.l b/pim6sd/cftoken.l
+index 17479d0..5b20741 100644
+--- a/pim6sd/cftoken.l
++++ b/pim6sd/cftoken.l
+@@ -697,3 +697,8 @@ cfparse(strict, debugonly)
+ 
+ 	return cf_post_config();
+ }
++
++int yywrap(void)
++{
++	return 1;
++}
+diff --git a/pim6sd/inet6_compat.c b/pim6sd/inet6_compat.c
+new file mode 100644
+index 0000000..375f17f
+--- /dev/null
++++ b/pim6sd/inet6_compat.c
+@@ -0,0 +1,161 @@
++#include <assert.h>
++
++static void
++add_pad (struct cmsghdr *cmsg, int len)
++{
++  unsigned char *p = CMSG_DATA (cmsg) + cmsg->cmsg_len - CMSG_LEN (0);
++
++  if (len == 1)
++    /* Special handling for 1, a one-byte solution.  */
++    *p++ = IP6OPT_PAD1;
++  else if (len != 0)
++    {
++      /* Multibyte padding.  */
++      *p++ = IP6OPT_PADN;
++      *p++ = len - 2;	/* Discount the two header bytes.  */
++      /* The rest is filled with zero.  */
++      memset (p, '\0', len - 2);
++      p += len - 2;
++    }
++
++  /* Account for the bytes.  */
++  cmsg->cmsg_len += len;
++}
++
++
++/* RFC 2292, 6.3.4
++
++   This function appends a Hop-by-Hop option or a Destination option
++   into an ancillary data object that has been initialized by
++   inet6_option_init().  This function returns a pointer to the 8-bit
++   option type field that starts the option on success, or NULL on an
++   error.  */
++static uint8_t *
++option_alloc (struct cmsghdr *cmsg, int datalen, int multx, int plusy)
++{
++  /* The RFC limits the value of the alignment values.  */
++  if ((multx != 1 && multx != 2 && multx != 4 && multx != 8)
++      || ! (plusy >= 0 && plusy <= 7))
++    return NULL;
++
++  /* Current data size.  */
++  int dsize = cmsg->cmsg_len - CMSG_LEN (0);
++
++  /* The first two bytes of the option are for the extended header.  */
++  if (__builtin_expect (dsize == 0, 0))
++    {
++      cmsg->cmsg_len += sizeof (struct ip6_ext);
++      dsize = sizeof (struct ip6_ext);
++    }
++
++  /* First add padding.  */
++  add_pad (cmsg, ((multx - (dsize & (multx - 1))) & (multx - 1)) + plusy);
++
++  /* Return the pointer to the start of the option space.  */
++  uint8_t *result = CMSG_DATA (cmsg) + cmsg->cmsg_len - CMSG_LEN (0);
++  cmsg->cmsg_len += datalen;
++
++  /* The extended option header length is measured in 8-byte groups.
++     To represent the current length we might have to add padding.  */
++  dsize = cmsg->cmsg_len - CMSG_LEN (0);
++  add_pad (cmsg, (8 - (dsize & (8 - 1))) & (8 - 1));
++
++  /* Record the new length of the option.  */
++  assert (((cmsg->cmsg_len - CMSG_LEN (0)) % 8) == 0);
++  int len8b = (cmsg->cmsg_len - CMSG_LEN (0)) / 8 - 1;
++  if (len8b >= 256)
++    /* Too long.  */
++    return NULL;
++
++  struct ip6_ext *ie = (void *) CMSG_DATA (cmsg);
++  ie->ip6e_len = len8b;
++
++  return result;
++}
++
++
++/* RFC 2292, 6.3.1
++
++   This function returns the number of bytes required to hold an option
++   when it is stored as ancillary data, including the cmsghdr structure
++   at the beginning, and any padding at the end (to make its size a
++   multiple of 8 bytes).  The argument is the size of the structure
++   defining the option, which must include any pad bytes at the
++   beginning (the value y in the alignment term "xn + y"), the type
++   byte, the length byte, and the option data.  */
++static int
++inet6_option_space (nbytes)
++     int nbytes;
++{
++  /* Add room for the extension header.  */
++  nbytes += sizeof (struct ip6_ext);
++
++  return CMSG_SPACE (roundup (nbytes, 8));
++}
++
++
++/* RFC 2292, 6.3.2
++
++   This function is called once per ancillary data object that will
++   contain either Hop-by-Hop or Destination options.  It returns 0 on
++   success or -1 on an error.  */
++static int
++inet6_option_init (bp, cmsgp, type)
++     void *bp;
++     struct cmsghdr **cmsgp;
++     int type;
++{
++  /* Only Hop-by-Hop or Destination options allowed.  */
++  if (type != IPV6_HOPOPTS && type != IPV6_DSTOPTS)
++    return -1;
++
++  /* BP is a pointer to the previously allocated space.  */
++  struct cmsghdr *newp = (struct cmsghdr *) bp;
++
++  /* Initialize the message header.
++
++     Length: No data yet, only the cmsghdr struct.  */
++  newp->cmsg_len = CMSG_LEN (0);
++  /* Originating protocol: obviously IPv6.  */
++  newp->cmsg_level = IPPROTO_IPV6;
++  /* Message type.  */
++  newp->cmsg_type = type;
++
++  /* Pass up the result.  */
++  *cmsgp = newp;
++
++  return 0;
++}
++
++
++/* RFC 2292, 6.3.3
++
++   This function appends a Hop-by-Hop option or a Destination option
++   into an ancillary data object that has been initialized by
++   inet6_option_init().  This function returns 0 if it succeeds or -1 on
++   an error.  */
++static int
++inet6_option_append (cmsg, typep, multx, plusy)
++     struct cmsghdr *cmsg;
++     const uint8_t *typep;
++     int multx;
++     int plusy;
++{
++  /* typep is a pointer to the 8-bit option type.  It is assumed that this
++     field is immediately followed by the 8-bit option data length field,
++     which is then followed immediately by the option data.
++
++     The option types IP6OPT_PAD1 and IP6OPT_PADN also must be handled.  */
++  int len = typep[0] == IP6OPT_PAD1 ? 1 : typep[1] + 2;
++
++  /* Get the pointer to the space in the message.  */
++  uint8_t *ptr = option_alloc (cmsg, len, multx, plusy);
++  if (ptr == NULL)
++    /* Some problem with the parameters.  */
++    return -1;
++
++  /* Copy the content.  */
++  memcpy (ptr, typep, len);
++
++  return 0;
++}
+diff --git a/pim6sd/mld6.c b/pim6sd/mld6.c
+index 0bac85d..febdc98 100644
+--- a/pim6sd/mld6.c
++++ b/pim6sd/mld6.c
+@@ -108,6 +108,10 @@
+ #include "trace.h"
+ #include "mld6.h"
+ 
++#ifdef __UCLIBC__
++#include "inet6_compat.c"
++#endif
++
+ /*
+  * Exported variables.
+  */
+diff --git a/pim6sd/mld6v2.c b/pim6sd/mld6v2.c
+index 8cd5a4d..322cb7b 100644
+--- a/pim6sd/mld6v2.c
++++ b/pim6sd/mld6v2.c
+@@ -73,6 +73,11 @@
+ #include "callout.h"
+ #include "timer.h"
+ 
++#ifdef __UCLIBC__
++#include "inet6_compat.c"
++#endif
++
++
+ #ifdef HAVE_MLDV2
+ 
+ #ifndef HAVE_RFC3542
+-- 
+1.9.1
+