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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
commit | 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch) | |
tree | 33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/libsystemd-network/dhcp-server-internal.h | |
parent | Initial commit. (diff) | |
download | systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip |
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/libsystemd-network/dhcp-server-internal.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/libsystemd-network/dhcp-server-internal.h b/src/libsystemd-network/dhcp-server-internal.h new file mode 100644 index 0000000..da9e56b --- /dev/null +++ b/src/libsystemd-network/dhcp-server-internal.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +/*** + Copyright © 2013 Intel Corporation. All rights reserved. +***/ + +#include "sd-dhcp-server.h" +#include "sd-event.h" + +#include "dhcp-option.h" +#include "network-common.h" +#include "ordered-set.h" +#include "time-util.h" + +typedef enum DHCPRawOption { + DHCP_RAW_OPTION_DATA_UINT8, + DHCP_RAW_OPTION_DATA_UINT16, + DHCP_RAW_OPTION_DATA_UINT32, + DHCP_RAW_OPTION_DATA_STRING, + DHCP_RAW_OPTION_DATA_IPV4ADDRESS, + DHCP_RAW_OPTION_DATA_IPV6ADDRESS, + _DHCP_RAW_OPTION_DATA_MAX, + _DHCP_RAW_OPTION_DATA_INVALID, +} DHCPRawOption; + +typedef struct DHCPClientId { + size_t length; + uint8_t *data; +} DHCPClientId; + +typedef struct DHCPLease { + sd_dhcp_server *server; + + DHCPClientId client_id; + + uint8_t htype; /* e.g. ARPHRD_ETHER */ + uint8_t hlen; /* e.g. ETH_ALEN */ + be32_t address; + be32_t gateway; + uint8_t chaddr[16]; + usec_t expiration; + char *hostname; +} DHCPLease; + +struct sd_dhcp_server { + unsigned n_ref; + + sd_event *event; + int event_priority; + sd_event_source *receive_message; + sd_event_source *receive_broadcast; + int fd; + int fd_raw; + int fd_broadcast; + + int ifindex; + char *ifname; + bool bind_to_interface; + be32_t address; + be32_t netmask; + be32_t subnet; + uint32_t pool_offset; + uint32_t pool_size; + + char *timezone; + + DHCPServerData servers[_SD_DHCP_LEASE_SERVER_TYPE_MAX]; + struct in_addr boot_server_address; + char *boot_server_name; + char *boot_filename; + + OrderedSet *extra_options; + OrderedSet *vendor_options; + + bool emit_router; + struct in_addr router_address; + + Hashmap *bound_leases_by_client_id; + Hashmap *bound_leases_by_address; + Hashmap *static_leases_by_client_id; + Hashmap *static_leases_by_address; + + usec_t max_lease_time; + usec_t default_lease_time; + usec_t ipv6_only_preferred_usec; + bool rapid_commit; + + sd_dhcp_server_callback_t callback; + void *callback_userdata; + + struct in_addr relay_target; + + char *agent_circuit_id; + char *agent_remote_id; +}; + +typedef struct DHCPRequest { + /* received message */ + DHCPMessage *message; + + /* options */ + DHCPClientId client_id; + size_t max_optlen; + be32_t server_id; + be32_t requested_ip; + usec_t lifetime; + const uint8_t *agent_info_option; + char *hostname; + const uint8_t *parameter_request_list; + size_t parameter_request_list_len; + bool rapid_commit; + triple_timestamp timestamp; +} DHCPRequest; + +extern const struct hash_ops dhcp_lease_hash_ops; + +int dhcp_server_handle_message(sd_dhcp_server *server, DHCPMessage *message, + size_t length, const triple_timestamp *timestamp); +int dhcp_server_send_packet(sd_dhcp_server *server, + DHCPRequest *req, DHCPPacket *packet, + int type, size_t optoffset); + +void client_id_hash_func(const DHCPClientId *p, struct siphash *state); +int client_id_compare_func(const DHCPClientId *a, const DHCPClientId *b); + +DHCPLease *dhcp_lease_free(DHCPLease *lease); +DEFINE_TRIVIAL_CLEANUP_FUNC(DHCPLease*, dhcp_lease_free); + +#define log_dhcp_server_errno(server, error, fmt, ...) \ + log_interface_prefix_full_errno( \ + "DHCPv4 server: ", \ + sd_dhcp_server, server, \ + error, fmt, ##__VA_ARGS__) +#define log_dhcp_server(server, fmt, ...) \ + log_interface_prefix_full_errno_zerook( \ + "DHCPv4 server: ", \ + sd_dhcp_server, server, \ + 0, fmt, ##__VA_ARGS__) |