mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-12-22 13:33:56 +03:00
85 lines
3.5 KiB
C
85 lines
3.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
|
|
#pragma once
|
|
|
|
/***
|
|
Copyright © 2013 Intel Corporation. All rights reserved.
|
|
***/
|
|
|
|
#include <linux/if_packet.h>
|
|
#include <net/ethernet.h>
|
|
#include <stdint.h>
|
|
|
|
#include "sd-dhcp-client.h"
|
|
|
|
#include "dhcp-protocol.h"
|
|
#include "network-common.h"
|
|
#include "socket-util.h"
|
|
|
|
typedef struct sd_dhcp_option {
|
|
unsigned n_ref;
|
|
|
|
uint8_t option;
|
|
void *data;
|
|
size_t length;
|
|
} sd_dhcp_option;
|
|
|
|
typedef struct DHCPServerData {
|
|
struct in_addr *addr;
|
|
size_t size;
|
|
} DHCPServerData;
|
|
|
|
extern const struct hash_ops dhcp_option_hash_ops;
|
|
|
|
typedef struct sd_dhcp_client sd_dhcp_client;
|
|
|
|
int dhcp_network_bind_raw_socket(int ifindex, union sockaddr_union *link, uint32_t xid,
|
|
const uint8_t *mac_addr, size_t mac_addr_len,
|
|
const uint8_t *bcast_addr, size_t bcast_addr_len,
|
|
uint16_t arp_type, uint16_t port);
|
|
int dhcp_network_bind_udp_socket(int ifindex, be32_t address, uint16_t port, int ip_service_type);
|
|
int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link,
|
|
const void *packet, size_t len);
|
|
int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port,
|
|
const void *packet, size_t len);
|
|
|
|
int dhcp_option_append(DHCPMessage *message, size_t size, size_t *offset, uint8_t overload,
|
|
uint8_t code, size_t optlen, const void *optval);
|
|
int dhcp_option_find_option(uint8_t *options, size_t length, uint8_t wanted_code, size_t *ret_offset);
|
|
int dhcp_option_remove_option(uint8_t *options, size_t buflen, uint8_t option_code);
|
|
|
|
typedef int (*dhcp_option_callback_t)(uint8_t code, uint8_t len,
|
|
const void *option, void *userdata);
|
|
|
|
int dhcp_option_parse(DHCPMessage *message, size_t len, dhcp_option_callback_t cb, void *userdata, char **error_message);
|
|
|
|
int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid,
|
|
uint8_t type, uint16_t arp_type, size_t optlen,
|
|
size_t *optoffset);
|
|
|
|
uint16_t dhcp_packet_checksum(uint8_t *buf, size_t len);
|
|
|
|
void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr,
|
|
uint16_t source, be32_t destination_addr,
|
|
uint16_t destination, uint16_t len, int ip_service_type);
|
|
|
|
int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum, uint16_t port);
|
|
|
|
void dhcp_client_set_test_mode(sd_dhcp_client *client, bool test_mode);
|
|
|
|
/* If we are invoking callbacks of a dhcp-client, ensure unreffing the
|
|
* client from the callback doesn't destroy the object we are working
|
|
* on */
|
|
#define DHCP_CLIENT_DONT_DESTROY(client) \
|
|
_cleanup_(sd_dhcp_client_unrefp) _unused_ sd_dhcp_client *_dont_destroy_##client = sd_dhcp_client_ref(client)
|
|
|
|
#define log_dhcp_client_errno(client, error, fmt, ...) \
|
|
log_interface_prefix_full_errno( \
|
|
"DHCPv4 client: ", \
|
|
sd_dhcp_client, client, \
|
|
error, fmt, ##__VA_ARGS__)
|
|
#define log_dhcp_client(client, fmt, ...) \
|
|
log_interface_prefix_full_errno_zerook( \
|
|
"DHCPv4 client: ", \
|
|
sd_dhcp_client, client, \
|
|
0, fmt, ##__VA_ARGS__)
|