dhcp: Handle received DHCP Offer message

Create a function for handling the full IP, UDP and DHCP packet
and tie it to the main loop. Verify IP and UDP headers and checksum.
Creat a new lease structure with using the values supplied in the
DHCP message. Free the lease structure when client is stopped.

Split out socket handling into a creation and a sending part. As a
result modify the test code.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/libsystemd-dhcp/dhcp-internal.h b/src/libsystemd-dhcp/dhcp-internal.h
index 814a3cdf6..4472d9509 100644
--- a/src/libsystemd-dhcp/dhcp-internal.h
+++ b/src/libsystemd-dhcp/dhcp-internal.h
@@ -22,10 +22,15 @@
 ***/
 
 #include <stdint.h>
+#include <linux/if_packet.h>
+
+#include "socket-util.h"
 
 #include "dhcp-protocol.h"
 
-int dhcp_network_send_raw_packet(int index, const void *packet, size_t len);
+int dhcp_network_bind_raw_socket(int index, union sockaddr_union *link);
+int dhcp_network_send_raw_socket(int s, const union sockaddr_union *link,
+                                 const void *packet, size_t len);
 
 int dhcp_option_append(uint8_t **buf, size_t *buflen, uint8_t code,
                        size_t optlen, const void *optval);