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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#ifndef foosdndiscfoo
#define foosdndiscfoo
/***
Copyright © 2014 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 <errno.h>
#include <inttypes.h>
#include <net/ethernet.h>
#include <netinet/in.h>
#include <sys/types.h>
#include "sd-event.h"
#include "_sd-common.h"
_SD_BEGIN_DECLARATIONS;
/* Neighbor Discovery Options, RFC 4861, Section 4.6 and
* https://www.iana.org/assignments/icmpv6-parameters/icmpv6-parameters.xhtml#icmpv6-parameters-5 */
enum {
SD_NDISC_OPTION_SOURCE_LL_ADDRESS = 1,
SD_NDISC_OPTION_TARGET_LL_ADDRESS = 2,
SD_NDISC_OPTION_PREFIX_INFORMATION = 3,
SD_NDISC_OPTION_MTU = 5,
SD_NDISC_OPTION_ROUTE_INFORMATION = 24,
SD_NDISC_OPTION_RDNSS = 25,
SD_NDISC_OPTION_FLAGS_EXTENSION = 26,
SD_NDISC_OPTION_DNSSL = 31,
SD_NDISC_OPTION_CAPTIVE_PORTAL = 37,
};
/* Route preference, RFC 4191, Section 2.1 */
enum {
SD_NDISC_PREFERENCE_LOW = 3U,
SD_NDISC_PREFERENCE_MEDIUM = 0U,
SD_NDISC_PREFERENCE_HIGH = 1U,
};
typedef struct sd_ndisc sd_ndisc;
typedef struct sd_ndisc_router sd_ndisc_router;
typedef enum sd_ndisc_event_t {
SD_NDISC_EVENT_TIMEOUT,
SD_NDISC_EVENT_ROUTER,
_SD_NDISC_EVENT_MAX,
_SD_NDISC_EVENT_INVALID = -EINVAL,
_SD_ENUM_FORCE_S64(NDISC_EVENT),
} sd_ndisc_event_t;
typedef void (*sd_ndisc_callback_t)(sd_ndisc *nd, sd_ndisc_event_t event, sd_ndisc_router *rt, void *userdata);
int sd_ndisc_new(sd_ndisc **ret);
sd_ndisc *sd_ndisc_ref(sd_ndisc *nd);
sd_ndisc *sd_ndisc_unref(sd_ndisc *nd);
int sd_ndisc_start(sd_ndisc *nd);
int sd_ndisc_stop(sd_ndisc *nd);
int sd_ndisc_attach_event(sd_ndisc *nd, sd_event *event, int64_t priority);
int sd_ndisc_detach_event(sd_ndisc *nd);
sd_event *sd_ndisc_get_event(sd_ndisc *nd);
int sd_ndisc_set_callback(sd_ndisc *nd, sd_ndisc_callback_t cb, void *userdata);
int sd_ndisc_set_ifindex(sd_ndisc *nd, int interface_index);
int sd_ndisc_set_ifname(sd_ndisc *nd, const char *interface_name);
const char *sd_ndisc_get_ifname(sd_ndisc *nd);
int sd_ndisc_set_mac(sd_ndisc *nd, const struct ether_addr *mac_addr);
int sd_ndisc_get_mtu(sd_ndisc *nd, uint32_t *ret);
int sd_ndisc_get_hop_limit(sd_ndisc *nd, uint8_t *ret);
int sd_ndisc_router_from_raw(sd_ndisc_router **ret, const void *raw, size_t raw_size);
sd_ndisc_router *sd_ndisc_router_ref(sd_ndisc_router *rt);
sd_ndisc_router *sd_ndisc_router_unref(sd_ndisc_router *rt);
int sd_ndisc_router_get_address(sd_ndisc_router *rt, struct in6_addr *ret_addr);
int sd_ndisc_router_get_timestamp(sd_ndisc_router *rt, clockid_t clock, uint64_t *ret);
int sd_ndisc_router_get_raw(sd_ndisc_router *rt, const void **ret, size_t *size);
int sd_ndisc_router_get_hop_limit(sd_ndisc_router *rt, uint8_t *ret);
int sd_ndisc_router_get_flags(sd_ndisc_router *rt, uint64_t *ret_flags);
int sd_ndisc_router_get_preference(sd_ndisc_router *rt, unsigned *ret);
int sd_ndisc_router_get_lifetime(sd_ndisc_router *rt, uint16_t *ret_lifetime);
int sd_ndisc_router_get_mtu(sd_ndisc_router *rt, uint32_t *ret);
/* Generic option access */
int sd_ndisc_router_option_rewind(sd_ndisc_router *rt);
int sd_ndisc_router_option_next(sd_ndisc_router *rt);
int sd_ndisc_router_option_get_type(sd_ndisc_router *rt, uint8_t *ret);
int sd_ndisc_router_option_is_type(sd_ndisc_router *rt, uint8_t type);
int sd_ndisc_router_option_get_raw(sd_ndisc_router *rt, const void **ret, size_t *size);
/* Specific option access: SD_NDISC_OPTION_PREFIX_INFORMATION */
int sd_ndisc_router_prefix_get_valid_lifetime(sd_ndisc_router *rt, uint32_t *ret);
int sd_ndisc_router_prefix_get_preferred_lifetime(sd_ndisc_router *rt, uint32_t *ret);
int sd_ndisc_router_prefix_get_flags(sd_ndisc_router *rt, uint8_t *ret);
int sd_ndisc_router_prefix_get_address(sd_ndisc_router *rt, struct in6_addr *ret_addr);
int sd_ndisc_router_prefix_get_prefixlen(sd_ndisc_router *rt, unsigned *prefixlen);
/* Specific option access: SD_NDISC_OPTION_ROUTE_INFORMATION */
int sd_ndisc_router_route_get_lifetime(sd_ndisc_router *rt, uint32_t *ret);
int sd_ndisc_router_route_get_address(sd_ndisc_router *rt, struct in6_addr *ret_addr);
int sd_ndisc_router_route_get_prefixlen(sd_ndisc_router *rt, unsigned *prefixlen);
int sd_ndisc_router_route_get_preference(sd_ndisc_router *rt, unsigned *ret);
/* Specific option access: SD_NDISC_OPTION_RDNSS */
int sd_ndisc_router_rdnss_get_addresses(sd_ndisc_router *rt, const struct in6_addr **ret);
int sd_ndisc_router_rdnss_get_lifetime(sd_ndisc_router *rt, uint32_t *ret);
/* Specific option access: SD_NDISC_OPTION_DNSSL */
int sd_ndisc_router_dnssl_get_domains(sd_ndisc_router *rt, char ***ret);
int sd_ndisc_router_dnssl_get_lifetime(sd_ndisc_router *rt, uint32_t *ret);
_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_ndisc, sd_ndisc_unref);
_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_ndisc_router, sd_ndisc_router_unref);
_SD_END_DECLARATIONS;
#endif
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