forked from Mirror/frr
8079a4138d
AS number can be defined as an unsigned long number, or two uint16 values separated by a period (.). The possible valus are: - usual 32 bit values : [1;2^32 -1] - <1.65535>.<0.65535> for dot notation - <0.65535>.<0.65535> for dot+ notation. The 0.0 value is forbidden when configuring BGP instances or peer configurations. A new ASN type is added for parsing in the vty. The following commands use that new identifier: - router bgp .. - bgp confederation .. - neighbor <> remote-as <> - neighbor <> local-as <> - clear ip bgp <> - route-map / set as-path <> An asn library is available in lib/ and provides some services: - convert an as string into an as number. - parse an as path list string and extract a number. - convert an as number into a string. Also, the bgp tests forge an as_zero_path, and to do that, an API to relax the possibility to have a 0 as value is specifically called from the tests. Signed-off-by: Philippe Guibert <philippe.guibert@6wind.com>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* AS number structure
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* Copyright 2022 6WIND
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2, or (at your
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* option) any later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _FRR_ASN_H
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#define _FRR_ASN_H
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#include "zebra.h"
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#include "command_match.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define ASN_STRING_MAX_SIZE 12
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typedef uint32_t as_t;
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extern bool asn_str2asn(const char *asstring, as_t *asn);
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extern const char *asn_asn2asplain(as_t asn);
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extern const char *asn_str2asn_parse(const char *asstring, as_t *asn,
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bool *found_ptr);
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extern enum match_type asn_str2asn_match(const char *str);
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/* for test */
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extern void asn_relax_as_zero(bool relax);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _FRR_ASN_H */
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