#include "dhcp-protocol.h"
-int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link);
-int dhcp_network_bind_udp_socket(int index, be32_t address, uint16_t port);
+int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link, uint32_t xid);
+int dhcp_network_bind_udp_socket(be32_t address, uint16_t port);
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,
int dhcp_message_init(DHCPMessage *message, uint8_t op, uint32_t xid, uint8_t type,
uint8_t **opt, size_t *optlen);
-void dhcp_packet_append_ip_headers(DHCPPacket *packet, uint16_t len);
+uint16_t dhcp_packet_checksum(void *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 dhcp_packet_verify_headers(DHCPPacket *packet, size_t len, bool checksum);
-#define log_dhcp_client(client, fmt, ...) log_meta(LOG_DEBUG, __FILE__, __LINE__, __func__, "DHCP CLIENT: " fmt, ##__VA_ARGS__)
+#define log_dhcp_client(client, fmt, ...) log_meta(LOG_DEBUG, __FILE__, __LINE__, __func__, "DHCP CLIENT (0x%x): " fmt, client->xid, ##__VA_ARGS__)