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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
524cf458 PF |
2 | #pragma once |
3 | ||
4 | /*** | |
810adae9 | 5 | Copyright © 2013 Intel Corporation. All rights reserved. |
524cf458 PF |
6 | ***/ |
7 | ||
07630cea | 8 | #include <stdint.h> |
524cf458 | 9 | |
574cc928 | 10 | #include "sd-dhcp-client.h" |
07630cea | 11 | |
fd9b7f5b | 12 | #include "dhcp-client-internal.h" |
524cf458 | 13 | #include "dhcp-protocol.h" |
5977b71f | 14 | #include "network-common.h" |
524cf458 | 15 | |
461dbb2f YW |
16 | typedef struct sd_dhcp_option { |
17 | unsigned n_ref; | |
18 | ||
19 | uint8_t option; | |
20 | void *data; | |
21 | size_t length; | |
22 | } sd_dhcp_option; | |
23 | ||
ddb82ec2 LP |
24 | typedef struct DHCPServerData { |
25 | struct in_addr *addr; | |
26 | size_t size; | |
27 | } DHCPServerData; | |
28 | ||
8d71f2b3 YW |
29 | typedef struct sd_dhcp_client sd_dhcp_client; |
30 | ||
04b28be1 | 31 | int dhcp_option_append(DHCPMessage *message, size_t size, size_t *offset, uint8_t overload, |
20b958bf | 32 | uint8_t code, size_t optlen, const void *optval); |
11c38d3e YA |
33 | int dhcp_option_find_option(uint8_t *options, size_t length, uint8_t wanted_code, size_t *ret_offset); |
34 | int dhcp_option_remove_option(uint8_t *options, size_t buflen, uint8_t option_code); | |
524cf458 | 35 | |
ccf86354 | 36 | typedef int (*dhcp_option_callback_t)(uint8_t code, uint8_t len, |
e4735228 | 37 | const void *option, void *userdata); |
cf597f65 | 38 | |
7b1fac1e | 39 | int dhcp_option_parse(DHCPMessage *message, size_t len, dhcp_option_callback_t cb, void *userdata, char **ret_error_message); |
cf597f65 | 40 | |
930133d5 RH |
41 | int dhcp_option_parse_string(const uint8_t *option, size_t len, char **ret); |
42 | ||
76253e73 | 43 | int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid, |
97fa338d YW |
44 | uint8_t type, uint16_t arp_type, uint8_t hlen, const uint8_t *chaddr, |
45 | size_t optlen, size_t *optoffset); | |
cf597f65 | 46 | |
0bbc2c1f | 47 | uint16_t dhcp_packet_checksum(uint8_t *buf, size_t len); |
a838c939 | 48 | |
63edaa62 TG |
49 | void dhcp_packet_append_ip_headers(DHCPPacket *packet, be32_t source_addr, |
50 | uint16_t source, be32_t destination_addr, | |
afe42aef | 51 | uint16_t destination, uint16_t len, int ip_service_type); |
cf597f65 | 52 | |
9faed222 | 53 | int dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum, uint16_t port); |
ee57a737 | 54 | |
574cc928 TG |
55 | /* If we are invoking callbacks of a dhcp-client, ensure unreffing the |
56 | * client from the callback doesn't destroy the object we are working | |
57 | * on */ | |
58 | #define DHCP_CLIENT_DONT_DESTROY(client) \ | |
4afd3348 | 59 | _cleanup_(sd_dhcp_client_unrefp) _unused_ sd_dhcp_client *_dont_destroy_##client = sd_dhcp_client_ref(client) |
574cc928 | 60 | |
a0c2541b | 61 | #define log_dhcp_client_errno(client, error, fmt, ...) \ |
00dd6d77 | 62 | log_interface_prefix_full_errno( \ |
a0c2541b | 63 | "DHCPv4 client: ", \ |
5977b71f | 64 | sd_dhcp_client, client, \ |
a0c2541b | 65 | error, fmt, ##__VA_ARGS__) |
35388783 | 66 | #define log_dhcp_client(client, fmt, ...) \ |
00dd6d77 ZJS |
67 | log_interface_prefix_full_errno_zerook( \ |
68 | "DHCPv4 client: ", \ | |
5977b71f | 69 | sd_dhcp_client, client, \ |
00dd6d77 | 70 | 0, fmt, ##__VA_ARGS__) |