95b74ef6ea
IPv6 address labels are used for address selection; they are described in RFC 3484. Precedence is managed by userspace, and only the label itself is stored in the kernel. enp0s25.network [Match] Name=enp0s25 [Network] DHCP=yes Address = 2001:db8:f00:baa::b [AddressLabel] Label=199 Prefix=2001:db8:41::/64 [AddressLabel] Label=11 Prefix=2001:db8:31::/64 [AddressLabel] Label=123 Prefix=2001:db8:21::/64 [AddressLabel] Label=124 Prefix=2001:db8:11::/64 [sus@maximus label]$ ip addrlabel list prefix ::1/128 label 0 prefix ::/96 label 3 prefix ::ffff:0.0.0.0/96 label 4 prefix 2001:db8:41::/64 dev enp0s25 label 199 prefix 2001:db8:31::/64 dev enp0s25 label 11 prefix 2001:db8:21::/64 dev enp0s25 label 123 prefix 2001:db8:11::/64 dev enp0s25 label 124 prefix 2001::/32 label 6 prefix 2001:10::/28 label 7 prefix 3ffe::/16 label 12 prefix 2002::/16 label 2 prefix fec0::/10 label 11 prefix fc00::/7 label 5 prefix ::/0 label 1
60 lines
2 KiB
C
60 lines
2 KiB
C
#pragma once
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/***
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This file is part of systemd.
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Copyright 2017 Susant Sahani
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <inttypes.h>
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#include <stdbool.h>
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#include "in-addr-util.h"
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typedef struct AddressLabel AddressLabel;
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#include "networkd-link.h"
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#include "networkd-network.h"
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typedef struct Network Network;
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typedef struct Link Link;
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typedef struct NetworkConfigSection NetworkConfigSection;
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struct AddressLabel {
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Network *network;
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Link *link;
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NetworkConfigSection *section;
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int family;
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unsigned char prefixlen;
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uint32_t label;
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union in_addr_union in_addr;
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LIST_FIELDS(AddressLabel, labels);
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};
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int address_label_new(AddressLabel **ret);
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void address_label_free(AddressLabel *label);
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DEFINE_TRIVIAL_CLEANUP_FUNC(AddressLabel*, address_label_free);
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#define _cleanup_address_label_free_ _cleanup_(address_label_freep)
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int address_label_configure(AddressLabel *address, Link *link, sd_netlink_message_handler_t callback, bool update);
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int config_parse_address_label(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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int config_parse_address_label_prefix(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
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