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/* BGP Notification state handling -- header
* Copyright (C) 1996, 97, 98, 99, 2000 Kunihiro Ishiguro
*
* Recast for pthreaded bgpd: Copyright (C) Chris Hall (GMCH), Highwayman
*
* This file is part of GNU Zebra.
*
* GNU Zebra is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2, or (at your option) any
* later version.
*
* GNU Zebra is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Zebra; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _QUAGGA_BGP_NOTIFY_H
#define _QUAGGA_BGP_NOTIFY_H
#include "lib/misc.h"
#include "bgpd/bgp_common.h"
/*==============================================================================
* BGP NOTIFICATION message codes.
*/
typedef unsigned char bgp_nom_code_t ;
typedef unsigned char bgp_nom_subcode_t ;
/*==============================================================================
* Structure for notification.
*
* Note that vast majority of notification handling concerns notifications that
* are *sent* to the far end. Occasionally a notification will be received.
*/
typedef struct bgp_notify* bgp_notify ;
struct bgp_notify
{
bgp_nom_code_t code ;
bgp_nom_subcode_t subcode ;
bool received ;
bgp_size_t length ;
bgp_size_t size ;
ptr_t data ;
} ;
/*==============================================================================
* "Legacy" definitions
*/
/* BGP notify message codes. */
#define BGP_NOTIFY_HEADER_ERR 1
#define BGP_NOTIFY_OPEN_ERR 2
#define BGP_NOTIFY_UPDATE_ERR 3
#define BGP_NOTIFY_HOLD_ERR 4
#define BGP_NOTIFY_FSM_ERR 5
#define BGP_NOTIFY_CEASE 6
#define BGP_NOTIFY_CAPABILITY_ERR 7
#define BGP_NOTIFY_MAX 8
#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
/* BGP_NOTIFY_HEADER_ERR sub codes. */
#define BGP_NOTIFY_HEADER_NOT_SYNC 1
#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
#define BGP_NOTIFY_HEADER_MAX 4
/* BGP_NOTIFY_OPEN_ERR sub codes. */
#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
#define BGP_NOTIFY_OPEN_MAX 8
/* BGP_NOTIFY_UPDATE_ERR sub codes. */
#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
#define BGP_NOTIFY_UPDATE_MAX 12
/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
#define BGP_NOTIFY_CEASE_MAX 9
/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
#define BGP_NOTIFY_CAPABILITY_MAX 4
/*==============================================================================
* Functions
*/
extern bgp_notify
bgp_notify_new(bgp_nom_code_t code, bgp_nom_subcode_t subcode) ;
extern bgp_notify
bgp_notify_new_expect(bgp_nom_code_t code, bgp_nom_subcode_t subcode,
bgp_size_t expect) ;
extern bgp_notify
bgp_notify_new_with_data(bgp_nom_code_t code, bgp_nom_subcode_t subcode,
const void* data, bgp_size_t len) ;
extern void
bgp_notify_free(bgp_notify notification) ;
extern bgp_notify
bgp_notify_dup(bgp_notify notification) ;
extern void
bgp_notify_unset(bgp_notify* p_notification) ;
extern bgp_notify
bgp_notify_take(bgp_notify* p_notification) ;
extern void
bgp_notify_set(bgp_notify* p_dst, bgp_notify src) ;
extern void
bgp_notify_set_dup(bgp_notify* p_dst, bgp_notify src) ;
extern void
bgp_notify_set_mov(bgp_notify* p_dst, bgp_notify* p_src) ;
/*==============================================================================
* Access Functions -- mostly inline
*
* Note that the various get functions return undefined/unspecific/empty if
* given a NULL bgp_notify.
*/
Inline void
bgp_notify_set_code(bgp_notify notification, bgp_nom_code_t code)
{
notification->code = code ;
} ;
Inline void
bgp_notify_set_subcode(bgp_notify notification, bgp_nom_subcode_t subcode)
{
notification->subcode = subcode ;
} ;
Inline void
bgp_notify_set_received(bgp_notify notification)
{
notification->received = true ;
} ;
extern bgp_notify
bgp_notify_reset(bgp_notify notification, bgp_nom_code_t code,
bgp_nom_subcode_t subcode) ;
extern void
bgp_notify_append_data(bgp_notify notification, const void* data,
bgp_size_t len) ;
extern void
bgp_notify_append_b(bgp_notify notification, uint8_t b) ;
extern void
bgp_notify_append_w(bgp_notify notification, uint16_t w) ;
extern void
bgp_notify_append_l(bgp_notify notification, uint32_t l) ;
Inline bgp_nom_code_t
bgp_notify_get_code(bgp_notify notification)
{
return (notification != NULL) ? notification->code : BGP_NOMC_UNDEF ;
} ;
Inline bgp_nom_subcode_t
bgp_notify_get_subcode(bgp_notify notification)
{
return (notification != NULL) ? notification->subcode : BGP_NOMS_UNSPECIFIC ;
} ;
Inline bool
bgp_notify_get_received(bgp_notify notification)
{
return (notification != NULL) ? notification->received : false ;
} ;
Inline bgp_size_t
bgp_notify_get_length(bgp_notify notification)
{
return (notification != NULL) ? notification->length : 0 ;
} ;
Inline void*
bgp_notify_get_data(bgp_notify notification)
{
return (notification != NULL) ? notification->data : NULL ;
} ;
#endif /* _QUAGGA_BGP_NOTIFY_H */
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