0003-vyatta-server.patch

--- a/server/dhcp.c	2020-01-21 20:21:48.000000000 +0100
+++ b/server/dhcp.c	2021-01-25 17:13:13.644020610 +0100
@@ -31,6 +31,12 @@
 #include <limits.h>
 #include <sys/time.h>
 
+//vyatta request/response output file
+FILE *fd_pckt_ct = NULL;
+static const char *dhcp_packet_count_file = "/var/log/dhcpd.status";
+long pckt_req_ct = 0;
+long pckt_resp_ct = 0;
+
 static void maybe_return_agent_options(struct packet *packet,
 				       struct option_state *options);
 
@@ -101,6 +107,31 @@ dhcp (struct packet *packet) {
 	const char *errmsg;
 	struct data_string data;
 
+  //vyatta
+  if (packet &&
+      packet->packet_type == DHCPREQUEST) {
+    pckt_req_ct++;
+  }
+
+  if (fd_pckt_ct == NULL) {
+    unlink(dhcp_packet_count_file);
+    int file_pckt_ct = open (dhcp_packet_count_file, O_WRONLY | O_EXCL | O_CREAT, 0664);
+    if (file_pckt_ct < 0) {
+      log_error ("Can't create new lease file: %m");
+    } else {
+      if ((fd_pckt_ct = fdopen (file_pckt_ct, "w")) == NULL) {
+        log_error ("Can't fdopen new lease file!");
+      }
+    }
+  }
+  if (fd_pckt_ct != NULL) {
+    fseek(fd_pckt_ct, 0, SEEK_SET);
+    fprintf(fd_pckt_ct, "request-count: %ld\n", pckt_req_ct);
+    fprintf(fd_pckt_ct, "response-count: %ld\n", pckt_resp_ct);
+    fflush(fd_pckt_ct);
+  }
+  //vyatta
+
 	if (!locate_network(packet) &&
 	    packet->packet_type != DHCPREQUEST &&
 	    packet->packet_type != DHCPINFORM &&
@@ -442,6 +473,10 @@ void dhcpdiscover (packet, ms_nulltp)
 	if (when < lease -> ends)
 		when = lease -> ends;
 
+//vyatta
+  pckt_resp_ct++;
+//vyatta
+
 	ack_lease (packet, lease, DHCPOFFER, when, msgbuf, ms_nulltp,
 		   (struct host_decl *)0);
       out: