Systemd/src/systemd/sd-dhcp-server.h

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#ifndef foosddhcpserverhfoo
#define foosddhcpserverhfoo
/***
Copyright © 2013 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 <inttypes.h>
#include <netinet/in.h>
#include "sd-dhcp-lease.h"
#include "sd-dhcp-option.h"
#include "sd-event.h"
#include "_sd-common.h"
_SD_BEGIN_DECLARATIONS;
typedef struct sd_dhcp_server sd_dhcp_server;
enum {
SD_DHCP_SERVER_EVENT_LEASE_CHANGED = 1 << 0,
};
int sd_dhcp_server_new(sd_dhcp_server **ret, int ifindex);
sd_dhcp_server *sd_dhcp_server_ref(sd_dhcp_server *server);
sd_dhcp_server *sd_dhcp_server_unref(sd_dhcp_server *server);
int sd_dhcp_server_attach_event(sd_dhcp_server *client, sd_event *event, int64_t priority);
int sd_dhcp_server_detach_event(sd_dhcp_server *client);
sd_event *sd_dhcp_server_get_event(sd_dhcp_server *client);
typedef void (*sd_dhcp_server_callback_t)(sd_dhcp_server *server, uint64_t event, void *userdata);
int sd_dhcp_server_set_callback(sd_dhcp_server *server, sd_dhcp_server_callback_t cb, void *userdata);
int sd_dhcp_server_is_running(sd_dhcp_server *server);
int sd_dhcp_server_start(sd_dhcp_server *server);
int sd_dhcp_server_stop(sd_dhcp_server *server);
int sd_dhcp_server_configure_pool(sd_dhcp_server *server, const struct in_addr *address, unsigned char prefixlen, uint32_t offset, uint32_t size);
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int sd_dhcp_server_set_timezone(sd_dhcp_server *server, const char *timezone);
int sd_dhcp_server_set_emit_router(sd_dhcp_server *server, int enabled);
int sd_dhcp_server_set_servers(
sd_dhcp_server *server,
sd_dhcp_lease_server_type what,
const struct in_addr addresses[],
size_t n_addresses);
int sd_dhcp_server_set_lpr(sd_dhcp_server *server, const struct in_addr lpr[], size_t n);
int sd_dhcp_server_set_dns(sd_dhcp_server *server, const struct in_addr dns[], size_t n);
int sd_dhcp_server_set_ntp(sd_dhcp_server *server, const struct in_addr ntp[], size_t n);
int sd_dhcp_server_set_sip(sd_dhcp_server *server, const struct in_addr sip[], size_t n);
int sd_dhcp_server_set_pop3(sd_dhcp_server *server, const struct in_addr pop3[], size_t n);
int sd_dhcp_server_set_smtp(sd_dhcp_server *server, const struct in_addr smtp[], size_t n);
int sd_dhcp_server_add_option(sd_dhcp_server *server, sd_dhcp_option *v);
int sd_dhcp_server_add_vendor_option(sd_dhcp_server *server, sd_dhcp_option *v);
networkd: dhcp server Support Vendor specific 43 Implementes https://tools.ietf.org/html/rfc2132 ``` [DHCPServer] SendRawOption=26:uint32:1400 SendRawOption=23:uint8:10 ``` Frame 448: 350 bytes on wire (2800 bits), 350 bytes captured (2800 bits) on interface 0 Linux cooked capture Internet Protocol Version 4, Src: 192.168.5.1, Dst: 192.168.5.11 User Datagram Protocol, Src Port: 67, Dst Port: 68 Dynamic Host Configuration Protocol (ACK) Message type: Boot Reply (2) Hardware type: Ethernet (0x01) Hardware address length: 6 Hops: 0 Transaction ID: 0x71f8de9d Seconds elapsed: 0 Bootp flags: 0x0000 (Unicast) Client IP address: 0.0.0.0 Your (client) IP address: 192.168.5.11 Next server IP address: 0.0.0.0 Relay agent IP address: 0.0.0.0 Client MAC address: 1e:04:f8:b8:2f:d4 (1e:04:f8:b8:2f:d4) Client hardware address padding: 00000000000000000000 Server host name not given Boot file name not given Magic cookie: DHCP Option: (53) DHCP Message Type (ACK) Length: 1 DHCP: ACK (5) Option: (51) IP Address Lease Time Length: 4 IP Address Lease Time: (3600s) 1 hour Option: (1) Subnet Mask (255.255.255.0) Length: 4 Subnet Mask: 255.255.255.0 Option: (3) Router Length: 4 Router: 192.168.5.1 Option: (6) Domain Name Server Length: 4 Domain Name Server: 192.168.5.1 Option: (42) Network Time Protocol Servers Length: 4 Network Time Protocol Server: 192.168.5.1 Option: (101) TCode Length: 13 TZ TCode: Europe/Berlin Option: (43) Vendor-Specific Information Length: 9 Value: 1701311a0431343030 Option: (54) DHCP Server Identifier (192.168.5.1) Length: 4 DHCP Server Identifier: 192.168.5.1 Option: (255) End Option End: 255 ```
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int sd_dhcp_server_set_max_lease_time(sd_dhcp_server *server, uint32_t t);
int sd_dhcp_server_set_default_lease_time(sd_dhcp_server *server, uint32_t t);
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int sd_dhcp_server_forcerenew(sd_dhcp_server *server);
_SD_DEFINE_POINTER_CLEANUP_FUNC(sd_dhcp_server, sd_dhcp_server_unref);
_SD_END_DECLARATIONS;
#endif