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-rw-r--r--net/openbgpd/files/patch-bgpd_mrt.h287
1 files changed, 287 insertions, 0 deletions
diff --git a/net/openbgpd/files/patch-bgpd_mrt.h b/net/openbgpd/files/patch-bgpd_mrt.h
new file mode 100644
index 000000000000..0c9d835f5b78
--- /dev/null
+++ b/net/openbgpd/files/patch-bgpd_mrt.h
@@ -0,0 +1,287 @@
+Index: bgpd/mrt.h
+===================================================================
+RCS file: /home/cvs/private/hrs/openbgpd/bgpd/mrt.h,v
+retrieving revision 1.1.1.6
+retrieving revision 1.1.1.9
+diff -u -p -r1.1.1.6 -r1.1.1.9
+--- bgpd/mrt.h 14 Feb 2010 20:19:57 -0000 1.1.1.6
++++ bgpd/mrt.h 13 Oct 2012 18:22:43 -0000 1.1.1.9
+@@ -1,4 +1,4 @@
+-/* $OpenBSD: mrt.h,v 1.23 2009/06/29 12:22:16 claudio Exp $ */
++/* $OpenBSD: mrt.h,v 1.30 2011/09/18 09:31:25 claudio Exp $ */
+
+ /*
+ * Copyright (c) 2003, 2004 Claudio Jeker <claudio@openbsd.org>
+@@ -18,12 +18,10 @@
+ #ifndef __MRT_H__
+ #define __MRT_H__
+
+-#include "bgpd.h"
+-
+ /*
+ * MRT binary packet format
+ * For more info see:
+- * draft-ietf-grow-mrt-04.txt, "MRT routing information export format"
++ * draft-ietf-grow-mrt-11.txt, "MRT routing information export format"
+ * http://www.quagga.net/docs/docs-multi/Packet-Binary-Dump-Format.html
+ */
+
+@@ -37,11 +35,18 @@
+ * | length | length of packet excluding this header
+ * +--------+--------+--------+--------+
+ *
+- * ET types include an additional 32bit microsecond field comming after the
+- * length field.
++ * ET types include an additional 32bit microsecond field coming after the
++ * length field. Which is accounted in the length field.
+ */
+ #define MRT_HEADER_SIZE 12
+
++struct mrt_hdr {
++ u_int32_t timestamp;
++ u_int16_t type;
++ u_int16_t subtype;
++ u_int32_t length;
++} __packed;
++
+ enum MRT_MSG_TYPES {
+ MSG_NULL, /* 0 empty msg (deprecated) */
+ MSG_START, /* 1 sender is starting up */
+@@ -70,13 +75,15 @@ enum MRT_MSG_TYPES {
+ * that are normaly saved as MSG_TABLE_DUMP.
+ * In most cases this is the format to choose to dump updates et al.
+ */
+-enum MRT_BGP4MP_TYPES {
++enum MRT_BGP4MP_SUBTYPES {
+ BGP4MP_STATE_CHANGE, /* state change */
+ BGP4MP_MESSAGE, /* bgp message */
+ BGP4MP_ENTRY, /* table dumps (deprecated) */
+ BGP4MP_SNAPSHOT, /* file name for dump (deprecated) */
++ BGP4MP_MESSAGE_AS4, /* same as BGP4MP_MESSAGE with 4byte AS */
+ BGP4MP_STATE_CHANGE_AS4,
+- BGP4MP_MESSAGE_AS4 /* same as BGP4MP_MESSAGE with 4byte AS */
++ BGP4MP_MESSAGE_LOCAL, /* same as BGP4MP_MESSAGE but for self */
++ BGP4MP_MESSAGE_AS4_LOCAL /* originated updates. Not implemented */
+ };
+
+ /* size of the BGP4MP headers without payload */
+@@ -104,6 +111,7 @@ enum MRT_BGP4MP_TYPES {
+ *
+ * The source_ip and dest_ip are dependant of the afi type. For IPv6 source_ip
+ * and dest_ip are both 16 bytes long.
++ * For the AS4 types the source_as and dest_as numbers are both 4 bytes long.
+ *
+ * Payload of a BGP4MP_STATE_CHANGE packet:
+ *
+@@ -155,6 +163,98 @@ enum MRT_BGP4MP_TYPES {
+ */
+
+ /*
++ * New MRT dump format MSG_TABLE_DUMP_V2, the dump is implemented with
++ * sub-tables for peers and NLRI entries just use the index into the peer
++ * table.
++ */
++enum MRT_DUMP_V2_SUBTYPES {
++ MRT_DUMP_V2_PEER_INDEX_TABLE=1,
++ MRT_DUMP_V2_RIB_IPV4_UNICAST=2,
++ MRT_DUMP_V2_RIB_IPV4_MULTICAST=3,
++ MRT_DUMP_V2_RIB_IPV6_UNICAST=4,
++ MRT_DUMP_V2_RIB_IPV6_MULTICAST=5,
++ MRT_DUMP_V2_RIB_GENERIC=6
++};
++
++/*
++ * Format of the MRT_DUMP_V2_PEER_INDEX_TABLE:
++ * If there is no view_name, view_name_len must be set to 0
++ *
++ * +--------+--------+--------+--------+
++ * | collector_bgp_id |
++ * +--------+--------+--------+--------+
++ * | view_name_len | view_name
++ * +--------+--------+--------+--------+
++ * view_name (variable) ... |
++ * +--------+--------+--------+--------+
++ * | peer_count | peer_entries
++ * +--------+--------+--------+--------+
++ * peer_entries (variable) ...
++ * +--------+--------+--------+--------+
++ *
++ * The format of a peer_entry is the following:
++ *
++ * +--------+
++ * | type |
++ * +--------+--------+--------+--------+
++ * | peer_bgp_id |
++ * +--------+--------+--------+--------+
++ * | peer_ip_addr (variable) |
++ * +--------+--------+--------+--------+
++ * | peer_as (variable) |
++ * +--------+--------+--------+--------+
++ *
++ * The message is packed a bit strangely. The type byte defines what size
++ * the peer addr and peer AS have.
++ * The position of a peer in the PEER_INDEX_TABLE is used as the index for
++ * the other messages.
++ */
++#define MRT_DUMP_V2_PEER_BIT_I 0x1 /* set for IPv6 addrs */
++#define MRT_DUMP_V2_PEER_BIT_A 0x2 /* set for 32 bits AS number */
++
++/*
++ * AFI/SAFI specific RIB Subtypes are special to save a few bytes.
++ *
++ * +--------+--------+--------+--------+
++ * | seq_num |
++ * +--------+--------+--------+--------+
++ * | plen | prefix (variable)
++ * +--------+--------+--------+--------+
++ * | #entry | rib entries (variable)
++ * +--------+--------+--------+--------+
++ *
++ * The RIB_GENERIC subtype is needed for the less common AFI/SAFI pairs
++ *
++ * +--------+--------+--------+--------+
++ * | seq_num |
++ * +--------+--------+--------+--------+
++ * | AFI | SAFI | NLRI
++ * +--------+--------+--------+--------+
++ * NLRI (variable) ...
++ * +--------+--------+--------+--------+
++ * | #entry | rib entries (variable)
++ * +--------+--------+--------+--------+
++ */
++
++/*
++ * The RIB entries have the following form.
++ *
++ * +--------+--------+
++ * | peer index |
++ * +--------+--------+--------+--------+
++ * | originated_time |
++ * +--------+--------+--------+--------+
++ * | attr_len | bgp_attrs
++ * +--------+--------+--------+--------+
++ * bgp_attrs (variable) ...
++ * +--------+--------+--------+--------+
++ *
++ * Some BGP path attributes need special encoding:
++ * - the AS_PATH attribute MUST be encoded as 4-Byte AS
++ * - the MP_REACH_NLRI only consists of the nexthop len and nexthop address
++ */
++
++/*
+ * Format for routing table dumps in "old" mrt format.
+ * Type MSG_TABLE_DUMP and subtype is AFI_IPv4 (1) for IPv4 and AFI_IPv6 (2)
+ * for IPv6. In the IPv6 case prefix and peer_ip are both 16 bytes long.
+@@ -182,8 +282,14 @@ enum MRT_BGP4MP_TYPES {
+ * The status field is unused and should be set to 1.
+ */
+
++enum MRT_DUMP_SUBTYPES {
++ MRT_DUMP_AFI_IP=1,
++ MRT_DUMP_AFI_IPv6=2
++};
++
+ /* size of the dump header until attr_len */
+ #define MRT_DUMP_HEADER_SIZE 22
++#define MRT_DUMP_HEADER_SIZE_V6 46
+
+ /*
+ * OLD MRT message headers. These structs are here for completion but
+@@ -192,7 +298,7 @@ enum MRT_BGP4MP_TYPES {
+ * Only for bgp messages (type 5, 9 and 10)
+ * Nota bene for bgp dumps MSG_PROTOCOL_BGP4MP should be used.
+ */
+-enum MRT_BGP_TYPES {
++enum MRT_BGP_SUBTYPES {
+ MSG_BGP_NULL,
+ MSG_BGP_UPDATE, /* raw update packet (contains both withdraws
+ and announcements) */
+@@ -221,10 +327,8 @@ enum MRT_BGP_TYPES {
+ *
+ * For IPv6 the type is MSG_PROTOCOL_BGP4PLUS and the subtype remains
+ * MSG_BGP_UPDATE. The source_ip and dest_ip are again extended to 16 bytes.
+- */
+-
+-/*
+- * For subtype MSG_BGP_STATECHANGE (for all BGP types or just for the
++ *
++ * For subtype MSG_BGP_STATE_CHANGE (for all BGP types or just for the
+ * MSG_PROTOCOL_BGP4PLUS case? Unclear.)
+ *
+ * +--------+--------+--------+--------+
+@@ -235,7 +339,7 @@ enum MRT_BGP_TYPES {
+ * | new_state |
+ * +--------+--------+
+ *
+- * State are defined in RFC 1771.
++ * States are defined in RFC 1771/4271.
+ */
+
+ /*
+@@ -251,66 +355,4 @@ enum MRT_BGP_TYPES {
+ * terminated ... | 0 |
+ * +--------+--------+--------+
+ */
+-
+-#define MRT_FILE_LEN 512
+-enum mrt_type {
+- MRT_NONE,
+- MRT_TABLE_DUMP,
+- MRT_TABLE_DUMP_MP,
+- MRT_ALL_IN,
+- MRT_ALL_OUT,
+- MRT_UPDATE_IN,
+- MRT_UPDATE_OUT
+-};
+-
+-enum mrt_state {
+- MRT_STATE_RUNNING,
+- MRT_STATE_OPEN,
+- MRT_STATE_REOPEN,
+- MRT_STATE_REMOVE
+-};
+-
+-struct mrt {
+- char rib[PEER_DESCR_LEN];
+- struct msgbuf wbuf;
+- LIST_ENTRY(mrt) entry;
+- u_int32_t peer_id;
+- u_int32_t group_id;
+- enum mrt_type type;
+- enum mrt_state state;
+- u_int16_t seqnum;
+-};
+-
+-struct mrt_config {
+- struct mrt conf;
+- char name[MRT_FILE_LEN]; /* base file name */
+- char file[MRT_FILE_LEN]; /* actual file name */
+- time_t ReopenTimer;
+- time_t ReopenTimerInterval;
+-};
+-
+-#define MRT2MC(x) ((struct mrt_config *)(x))
+-#define MRT_MAX_TIMEOUT 7200
+-
+-struct peer;
+-struct prefix;
+-struct rib_entry;
+-
+-/* prototypes */
+-void mrt_dump_bgp_msg(struct mrt *, void *, u_int16_t,
+- struct peer *);
+-void mrt_dump_state(struct mrt *, u_int16_t, u_int16_t,
+- struct peer *);
+-void mrt_clear_seq(void);
+-void mrt_dump_upcall(struct rib_entry *, void *);
+-void mrt_dump_done(void *);
+-void mrt_write(struct mrt *);
+-void mrt_clean(struct mrt *);
+-void mrt_init(struct imsgbuf *, struct imsgbuf *);
+-int mrt_timeout(struct mrt_head *);
+-void mrt_reconfigure(struct mrt_head *);
+-void mrt_handler(struct mrt_head *);
+-struct mrt *mrt_get(struct mrt_head *, struct mrt *);
+-int mrt_mergeconfig(struct mrt_head *, struct mrt_head *);
+-
+ #endif
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