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a032b68d | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
60f067b4 JS |
2 | #pragma once |
3 | ||
4 | /*** | |
b012e921 | 5 | Copyright © 2013 Intel Corporation. All rights reserved. |
60f067b4 JS |
6 | ***/ |
7 | ||
60f067b4 | 8 | #include <linux/if_packet.h> |
5eef597e | 9 | #include <net/ethernet.h> |
db2df898 | 10 | #include <stdint.h> |
60f067b4 | 11 | |
e842803a | 12 | #include "sd-dhcp-client.h" |
db2df898 | 13 | |
60f067b4 | 14 | #include "dhcp-protocol.h" |
ea0999c9 | 15 | #include "network-common.h" |
db2df898 | 16 | #include "socket-util.h" |
60f067b4 | 17 | |
e1f67bc7 MB |
18 | typedef struct sd_dhcp_option { |
19 | unsigned n_ref; | |
20 | ||
21 | uint8_t option; | |
22 | void *data; | |
23 | size_t length; | |
24 | } sd_dhcp_option; | |
25 | ||
a10f5d05 MB |
26 | typedef struct DHCPServerData { |
27 | struct in_addr *addr; | |
28 | size_t size; | |
29 | } DHCPServerData; | |
30 | ||
e1f67bc7 MB |
31 | extern const struct hash_ops dhcp_option_hash_ops; |
32 | ||
8b3d4ff0 MB |
33 | typedef struct sd_dhcp_client sd_dhcp_client; |
34 | ||
a032b68d MB |
35 | int dhcp_network_bind_raw_socket(int ifindex, union sockaddr_union *link, uint32_t xid, |
36 | const uint8_t *mac_addr, size_t mac_addr_len, | |
37 | const uint8_t *bcast_addr, size_t bcast_addr_len, | |
38 | uint16_t arp_type, uint16_t port); | |
e1f67bc7 | 39 | int dhcp_network_bind_udp_socket(int ifindex, be32_t address, uint16_t port, int ip_service_type); |
60f067b4 JS |
40 | int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link, |
41 | const void *packet, size_t len); | |
42 | int dhcp_network_send_udp_socket(int s, be32_t address, uint16_t port, | |
43 | const void *packet, size_t len); | |
44 | ||
45 | int dhcp_option_append(DHCPMessage *message, size_t size, size_t *offset, uint8_t overload, | |
46 | uint8_t code, size_t optlen, const void *optval); | |
8b3d4ff0 MB |
47 | int dhcp_option_find_option(uint8_t *options, size_t length, uint8_t wanted_code, size_t *ret_offset); |
48 | int dhcp_option_remove_option(uint8_t *options, size_t buflen, uint8_t option_code); | |
60f067b4 | 49 | |
aa27b158 | 50 | typedef int (*dhcp_option_callback_t)(uint8_t code, uint8_t len, |
d9dfd233 | 51 | const void *option, void *userdata); |
60f067b4 | 52 | |
aa27b158 | 53 | int dhcp_option_parse(DHCPMessage *message, size_t len, dhcp_option_callback_t cb, void *userdata, char **error_message); |
60f067b4 | 54 | |
5eef597e MP |
55 | int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid, |
56 | uint8_t type, uint16_t arp_type, size_t optlen, | |
57 | size_t *optoffset); | |
60f067b4 | 58 | |
e842803a | 59 | uint16_t dhcp_packet_checksum(uint8_t *buf, size_t len); |
60f067b4 JS |
60 | |
61 | void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr, | |
62 | uint16_t source, be32_t destination_addr, | |
e1f67bc7 | 63 | uint16_t destination, uint16_t len, int ip_service_type); |
60f067b4 | 64 | |
2897b343 | 65 | int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum, uint16_t port); |
60f067b4 | 66 | |
8b3d4ff0 MB |
67 | void dhcp_client_set_test_mode(sd_dhcp_client *client, bool test_mode); |
68 | ||
e842803a MB |
69 | /* If we are invoking callbacks of a dhcp-client, ensure unreffing the |
70 | * client from the callback doesn't destroy the object we are working | |
71 | * on */ | |
72 | #define DHCP_CLIENT_DONT_DESTROY(client) \ | |
4c89c718 | 73 | _cleanup_(sd_dhcp_client_unrefp) _unused_ sd_dhcp_client *_dont_destroy_##client = sd_dhcp_client_ref(client) |
e842803a | 74 | |
8b3d4ff0 MB |
75 | #define log_dhcp_client_errno(client, error, fmt, ...) \ |
76 | log_interface_prefix_full_errno( \ | |
77 | "DHCPv4 client: ", \ | |
ea0999c9 | 78 | sd_dhcp_client, client, \ |
8b3d4ff0 MB |
79 | error, fmt, ##__VA_ARGS__) |
80 | #define log_dhcp_client(client, fmt, ...) \ | |
81 | log_interface_prefix_full_errno_zerook( \ | |
82 | "DHCPv4 client: ", \ | |
ea0999c9 | 83 | sd_dhcp_client, client, \ |
8b3d4ff0 | 84 | 0, fmt, ##__VA_ARGS__) |