| | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| | 2 | #pragma once |
| | 3 | |
| | 4 | /*** |
| | 5 | Copyright © 2013 Intel Corporation. All rights reserved. |
| | 6 | ***/ |
| | 7 | |
| | 8 | #include "sd-dhcp-lease.h" |
| | 9 | #include "sd-dhcp-server.h" |
| | 10 | |
| | 11 | #include "dhcp-client-id-internal.h" |
| | 12 | #include "dhcp-option.h" |
| | 13 | #include "forward.h" |
| | 14 | #include "network-common.h" |
| | 15 | #include "sparse-endian.h" |
| | 16 | |
| | 17 | typedef enum DHCPRawOption { |
| | 18 | DHCP_RAW_OPTION_DATA_UINT8, |
| | 19 | DHCP_RAW_OPTION_DATA_UINT16, |
| | 20 | DHCP_RAW_OPTION_DATA_UINT32, |
| | 21 | DHCP_RAW_OPTION_DATA_STRING, |
| | 22 | DHCP_RAW_OPTION_DATA_IPV4ADDRESS, |
| | 23 | DHCP_RAW_OPTION_DATA_IPV6ADDRESS, |
| | 24 | _DHCP_RAW_OPTION_DATA_MAX, |
| | 25 | _DHCP_RAW_OPTION_DATA_INVALID, |
| | 26 | } DHCPRawOption; |
| | 27 | |
| | 28 | typedef struct sd_dhcp_server { |
| | 29 | unsigned n_ref; |
| | 30 | |
| | 31 | sd_event *event; |
| | 32 | int event_priority; |
| | 33 | sd_event_source *receive_message; |
| | 34 | sd_event_source *receive_broadcast; |
| | 35 | int fd; |
| | 36 | int fd_raw; |
| | 37 | int fd_broadcast; |
| | 38 | |
| | 39 | int ifindex; |
| | 40 | char *ifname; |
| | 41 | bool bind_to_interface; |
| | 42 | be32_t address; |
| | 43 | be32_t netmask; |
| | 44 | be32_t subnet; |
| | 45 | uint32_t pool_offset; |
| | 46 | uint32_t pool_size; |
| | 47 | |
| | 48 | char *timezone; |
| | 49 | |
| | 50 | DHCPServerData servers[_SD_DHCP_LEASE_SERVER_TYPE_MAX]; |
| | 51 | struct in_addr boot_server_address; |
| | 52 | char *boot_server_name; |
| | 53 | char *boot_filename; |
| | 54 | |
| | 55 | OrderedSet *extra_options; |
| | 56 | OrderedSet *vendor_options; |
| | 57 | |
| | 58 | bool emit_router; |
| | 59 | struct in_addr router_address; |
| | 60 | |
| | 61 | Hashmap *bound_leases_by_client_id; |
| | 62 | Hashmap *bound_leases_by_address; |
| | 63 | Hashmap *static_leases_by_client_id; |
| | 64 | Hashmap *static_leases_by_address; |
| | 65 | |
| | 66 | usec_t max_lease_time; |
| | 67 | usec_t default_lease_time; |
| | 68 | usec_t ipv6_only_preferred_usec; |
| | 69 | bool rapid_commit; |
| | 70 | |
| | 71 | sd_dhcp_server_callback_t callback; |
| | 72 | void *callback_userdata; |
| | 73 | |
| | 74 | struct in_addr relay_target; |
| | 75 | |
| | 76 | char *agent_circuit_id; |
| | 77 | char *agent_remote_id; |
| | 78 | |
| | 79 | int lease_dir_fd; |
| | 80 | char *lease_file; |
| | 81 | } sd_dhcp_server; |
| | 82 | |
| | 83 | typedef struct DHCPRequest { |
| | 84 | /* received message */ |
| | 85 | DHCPMessage *message; |
| | 86 | |
| | 87 | /* options */ |
| | 88 | sd_dhcp_client_id client_id; |
| | 89 | size_t max_optlen; |
| | 90 | be32_t server_id; |
| | 91 | be32_t requested_ip; |
| | 92 | usec_t lifetime; |
| | 93 | const uint8_t *agent_info_option; |
| | 94 | char *hostname; |
| | 95 | const uint8_t *parameter_request_list; |
| | 96 | size_t parameter_request_list_len; |
| | 97 | bool rapid_commit; |
| | 98 | triple_timestamp timestamp; |
| | 99 | } DHCPRequest; |
| | 100 | |
| | 101 | int dhcp_server_handle_message(sd_dhcp_server *server, DHCPMessage *message, |
| | 102 | size_t length, const triple_timestamp *timestamp); |
| | 103 | int dhcp_server_send_packet(sd_dhcp_server *server, |
| | 104 | DHCPRequest *req, DHCPPacket *packet, |
| | 105 | int type, size_t optoffset); |
| | 106 | |
| | 107 | #define log_dhcp_server_errno(server, error, fmt, ...) \ |
| | 108 | log_interface_prefix_full_errno( \ |
| | 109 | "DHCPv4 server: ", \ |
| | 110 | sd_dhcp_server, server, \ |
| | 111 | error, fmt, ##__VA_ARGS__) |
| | 112 | #define log_dhcp_server(server, fmt, ...) \ |
| | 113 | log_interface_prefix_full_errno_zerook( \ |
| | 114 | "DHCPv4 server: ", \ |
| | 115 | sd_dhcp_server, server, \ |
| | 116 | 0, fmt, ##__VA_ARGS__) |
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