From b750101eb236130cf056c675997decbac904cc49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 17:35:18 +0200 Subject: Adding upstream version 252.22. Signed-off-by: Daniel Baumann --- src/libsystemd-network/dhcp-internal.h | 89 ++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 src/libsystemd-network/dhcp-internal.h (limited to 'src/libsystemd-network/dhcp-internal.h') diff --git a/src/libsystemd-network/dhcp-internal.h b/src/libsystemd-network/dhcp-internal.h new file mode 100644 index 0000000..a311d1d --- /dev/null +++ b/src/libsystemd-network/dhcp-internal.h @@ -0,0 +1,89 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#pragma once + +/*** + Copyright © 2013 Intel Corporation. All rights reserved. +***/ + +#include +#include +#include + +#include "sd-dhcp-client.h" + +#include "dhcp-protocol.h" +#include "ether-addr-util.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 struct hw_addr_data *hw_addr, + const struct hw_addr_data *bcast_addr, + 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, uint8_t hlen, const uint8_t *chaddr, + 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__) -- cgit v1.2.3