sd-dhcp-server: add basic message parsing

Parse the maximum message size the client can accept and the client id, falling back to
sane defaults if they are not set.

1 files changed, 15 insertions, 0 deletions

diff --git a/src/libsystemd-network/dhcp-server-internal.h b/src/libsystemd-network/dhcp-server-internal.h
index 63883fab99..3d49cba917 100644
--- a/src/libsystemd-network/dhcp-server-internal.h
+++ b/src/libsystemd-network/dhcp-server-internal.h
@@ -40,6 +40,21 @@ struct sd_dhcp_server {
         int index;
 };
 
+typedef struct DHCPClientId {
+        size_t length;
+        uint8_t *data;
+} DHCPClientId;
+
+typedef struct DHCPRequest {
+        /* received message */
+        DHCPMessage *message;
+
+        /* options */
+        DHCPClientId client_id;
+        size_t max_optlen;
+        be32_t server_id;
+} DHCPRequest;
+
 DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_server*, sd_dhcp_server_unref);
 #define _cleanup_dhcp_server_unref_ _cleanup_(sd_dhcp_server_unrefp)