100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright (C) 2013 Intel Corporation. All rights reserved.
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Copyright (C) 2014 Tom Gundersen
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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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#pragma once
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#include "sd-dhcp-server.h"
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#include "sd-event.h"
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#include "dhcp-internal.h"
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#include "hashmap.h"
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#include "log.h"
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#include "util.h"
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typedef struct DHCPClientId {
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size_t length;
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void *data;
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} DHCPClientId;
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typedef struct DHCPLease {
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DHCPClientId client_id;
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be32_t address;
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be32_t gateway;
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uint8_t chaddr[16];
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usec_t expiration;
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} DHCPLease;
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struct sd_dhcp_server {
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unsigned n_ref;
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sd_event *event;
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int event_priority;
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sd_event_source *receive_message;
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int fd;
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int fd_raw;
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int ifindex;
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be32_t address;
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be32_t netmask;
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be32_t subnet;
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uint32_t pool_offset;
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uint32_t pool_size;
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char *timezone;
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struct in_addr *ntp, *dns;
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unsigned n_ntp, n_dns;
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Hashmap *leases_by_client_id;
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DHCPLease **bound_leases;
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DHCPLease invalid_lease;
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uint32_t max_lease_time, default_lease_time;
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};
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typedef struct DHCPRequest {
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/* received message */
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DHCPMessage *message;
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/* options */
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DHCPClientId client_id;
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size_t max_optlen;
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be32_t server_id;
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be32_t requested_ip;
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uint32_t lifetime;
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} DHCPRequest;
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DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_server*, sd_dhcp_server_unref);
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#define _cleanup_dhcp_server_unref_ _cleanup_(sd_dhcp_server_unrefp)
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#define log_dhcp_server(client, fmt, ...) log_internal(LOG_DEBUG, 0, __FILE__, __LINE__, __func__, "DHCP SERVER: " fmt, ##__VA_ARGS__)
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int dhcp_server_handle_message(sd_dhcp_server *server, DHCPMessage *message,
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size_t length);
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int dhcp_server_send_packet(sd_dhcp_server *server,
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DHCPRequest *req, DHCPPacket *packet,
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int type, size_t optoffset);
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void client_id_hash_func(const void *p, struct siphash *state);
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int client_id_compare_func(const void *_a, const void *_b);
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