Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 112 insertions, 0 deletions

diff --git a/bgpd/bgp_open.h b/bgpd/bgp_open.h
new file mode 100644
index 0000000..a92c56d
--- /dev/null
+++ b/bgpd/bgp_open.h
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* BGP open message handling
+ * Copyright (C) 1999 Kunihiro Ishiguro
+ */
+
+#ifndef _QUAGGA_BGP_OPEN_H
+#define _QUAGGA_BGP_OPEN_H
+
+/* Standard header for capability TLV */
+struct capability_header {
+	uint8_t code;
+	uint8_t length;
+};
+
+/* Generic MP capability data */
+struct capability_mp_data {
+	uint16_t afi; /* iana_afi_t */
+	uint8_t reserved;
+	uint8_t safi; /* iana_safi_t */
+};
+
+struct graceful_restart_af {
+	uint16_t afi;
+	uint8_t safi;
+	uint8_t flag;
+};
+
+/*
+ * +--------------------------------------------------+
+ * | Address Family Identifier (16 bits)              |
+ * +--------------------------------------------------+
+ * | Subsequent Address Family Identifier (8 bits)    |
+ * +--------------------------------------------------+
+ * | Flags for Address Family (8 bits)                |
+ * +--------------------------------------------------+
+ * | Long-lived Stale Time (24 bits)                  |
+ * +--------------------------------------------------+
+ */
+#define BGP_CAP_LLGR_MIN_PACKET_LEN 7
+
+/* Capability Code */
+#define CAPABILITY_CODE_MP              1 /* Multiprotocol Extensions */
+#define CAPABILITY_CODE_REFRESH         2 /* Route Refresh Capability */
+#define CAPABILITY_CODE_ORF             3 /* Cooperative Route Filtering Capability */
+#define CAPABILITY_CODE_RESTART        64 /* Graceful Restart Capability */
+#define CAPABILITY_CODE_AS4            65 /* 4-octet AS number Capability */
+#define CAPABILITY_CODE_DYNAMIC        67 /* Dynamic Capability */
+#define CAPABILITY_CODE_ADDPATH        69 /* Addpath Capability */
+#define CAPABILITY_CODE_ENHANCED_RR    70 /* Enhanced Route Refresh capability */
+#define CAPABILITY_CODE_LLGR           71 /* Long-lived Graceful Restart */
+#define CAPABILITY_CODE_FQDN           73 /* Advertise hostname capability */
+#define CAPABILITY_CODE_SOFT_VERSION   75 /* Software Version capability */
+#define CAPABILITY_CODE_ENHE            5 /* Extended Next Hop Encoding */
+#define CAPABILITY_CODE_EXT_MESSAGE     6 /* Extended Message Support */
+#define CAPABILITY_CODE_ROLE            9 /* Role Capability */
+
+/* Capability Length */
+#define CAPABILITY_CODE_MP_LEN          4
+#define CAPABILITY_CODE_REFRESH_LEN     0
+#define CAPABILITY_CODE_DYNAMIC_LEN     0
+#define CAPABILITY_CODE_RESTART_LEN     2 /* Receiving only case */
+#define CAPABILITY_CODE_AS4_LEN         4
+#define CAPABILITY_CODE_ADDPATH_LEN     4
+#define CAPABILITY_CODE_ENHE_LEN        6 /* NRLI AFI = 2, SAFI = 2, Nexthop AFI = 2 */
+#define CAPABILITY_CODE_MIN_FQDN_LEN    2
+#define CAPABILITY_CODE_ENHANCED_LEN    0
+#define CAPABILITY_CODE_LLGR_LEN        0
+#define CAPABILITY_CODE_ORF_LEN         5
+#define CAPABILITY_CODE_EXT_MESSAGE_LEN 0 /* Extended Message Support */
+#define CAPABILITY_CODE_ROLE_LEN        1
+#define CAPABILITY_CODE_SOFT_VERSION_LEN 1
+
+/* Cooperative Route Filtering Capability.  */
+
+/* ORF Type */
+#define ORF_TYPE_RESERVED               0
+#define ORF_TYPE_PREFIX                64
+
+/* ORF Mode */
+#define ORF_MODE_RECEIVE                1
+#define ORF_MODE_SEND                   2
+#define ORF_MODE_BOTH                   3
+
+/* Capability Message Action.  */
+#define CAPABILITY_ACTION_SET           0
+#define CAPABILITY_ACTION_UNSET         1
+
+/* Graceful Restart */
+#define GRACEFUL_RESTART_R_BIT 0x8000
+#define GRACEFUL_RESTART_N_BIT 0x4000
+#define GRACEFUL_RESTART_F_BIT 0x80
+
+/* Long-lived Graceful Restart */
+#define LLGR_F_BIT 0x80
+
+/* Optional Parameters */
+#define BGP_OPEN_NON_EXT_OPT_LEN 255		      /* Non-Ext OP Len. */
+#define BGP_OPEN_NON_EXT_OPT_TYPE_EXTENDED_LENGTH 255 /* Non-Ext OP Type */
+#define BGP_OPEN_EXT_OPT_PARAMS_CAPABLE(peer)                                  \
+	(CHECK_FLAG(peer->flags, PEER_FLAG_EXTENDED_OPT_PARAMS)                \
+	 || CHECK_FLAG(peer->sflags, PEER_STATUS_EXT_OPT_PARAMS_LENGTH))
+
+extern int bgp_open_option_parse(struct peer *peer, uint16_t length,
+				 int *mp_capability);
+extern uint16_t bgp_open_capability(struct stream *s, struct peer *peer,
+				    bool ext_opt_params);
+extern void bgp_capability_vty_out(struct vty *vty, struct peer *peer,
+				   bool use_json, json_object *json_neigh);
+extern as_t peek_for_as4_capability(struct peer *peer, uint16_t length);
+extern const struct message capcode_str[];
+
+#endif /* _QUAGGA_BGP_OPEN_H */