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/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once
/***
This file is part of systemd.
Copyright (C) 2017 Intel Corporation. All rights reserved.
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "sd-radv.h"
#include "log.h"
#include "list.h"
#include "sparse-endian.h"
assert_cc(SD_RADV_DEFAULT_MIN_TIMEOUT_USEC <= SD_RADV_DEFAULT_MAX_TIMEOUT_USEC)
#define SD_RADV_MAX_INITIAL_RTR_ADVERT_INTERVAL_USEC (16*USEC_PER_SEC)
#define SD_RADV_MAX_INITIAL_RTR_ADVERTISEMENTS 3
#define SD_RADV_MAX_FINAL_RTR_ADVERTISEMENTS 3
#define SD_RADV_MIN_DELAY_BETWEEN_RAS 3
#define SD_RADV_MAX_RA_DELAY_TIME_USEC (500*USEC_PER_MSEC)
#define SD_RADV_OPT_RDNSS 25
#define SD_RADV_OPT_DNSSL 31
enum RAdvState {
SD_RADV_STATE_IDLE = 0,
SD_RADV_STATE_ADVERTISING = 1,
};
typedef enum RAdvState RAdvState;
struct sd_radv_opt_dns {
uint8_t type;
uint8_t length;
uint16_t reserved;
be32_t lifetime;
} _packed_;
struct sd_radv {
unsigned n_ref;
RAdvState state;
int ifindex;
sd_event *event;
int event_priority;
struct ether_addr mac_addr;
uint8_t hop_limit;
uint8_t flags;
uint32_t mtu;
uint16_t lifetime;
int fd;
unsigned ra_sent;
sd_event_source *recv_event_source;
sd_event_source *timeout_event_source;
unsigned n_prefixes;
LIST_HEAD(sd_radv_prefix, prefixes);
size_t n_rdnss;
struct sd_radv_opt_dns *rdnss;
struct sd_radv_opt_dns *dnssl;
};
struct sd_radv_prefix {
unsigned n_ref;
struct {
uint8_t type;
uint8_t length;
uint8_t prefixlen;
uint8_t flags;
be32_t valid_lifetime;
be32_t preferred_lifetime;
uint32_t reserved;
struct in6_addr in6_addr;
} _packed_ opt;
LIST_FIELDS(struct sd_radv_prefix, prefix);
usec_t valid_until;
usec_t preferred_until;
};
#define log_radv_full(level, error, fmt, ...) log_internal(level, error, __FILE__, __LINE__, __func__, "RADV: " fmt, ##__VA_ARGS__)
#define log_radv_errno(error, fmt, ...) log_radv_full(LOG_DEBUG, error, fmt, ##__VA_ARGS__)
#define log_radv_warning_errno(error, fmt, ...) log_radv_full(LOG_WARNING, error, fmt, ##__VA_ARGS__)
#define log_radv(fmt, ...) log_radv_errno(0, fmt, ##__VA_ARGS__)
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