Experimental: ESMTP LIMITS extension

[exim.git] / src / src / transport.c

diff --git a/src/src/transport.c b/src/src/transport.c
index 49a84ccc42edc1c39f168f685b2f9fb27da738e0..d8fd8585523abcd4d25f61401ee538101aaefe28 100644 (file)
--- a/src/src/transport.c
+++ b/src/src/transport.c
@@ -1880,9 +1880,21 @@ void
 transport_do_pass_socket(const uschar *transport_name, const uschar *hostname,
   const uschar *hostaddress, uschar *id, int socket_fd)
 {
-int i = 27;
+int i = 13;
 const uschar **argv;
 
+#ifndef DISABLE_TLS
+if (smtp_peer_options & OPTION_TLS) i += 6;
+#endif
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+if (continue_limit_mail || continue_limit_rcpt || continue_limit_rcptdom)
+                                   i += 4;
+#endif
+if (queue_run_pid != (pid_t)0)     i += 3;
+#ifdef SUPPORT_SOCKS
+if (proxy_session)                 i += 5;
+#endif
+
 /* Set up the calling arguments; use the standard function for the basics,
 but we have a number of extras that may be added. */
 
@@ -1916,6 +1928,16 @@ if (smtp_peer_options & OPTION_TLS)
     argv[i++] = US"-MCT";
 #endif
 
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+if (continue_limit_rcpt || continue_limit_rcptdom)
+  {
+  argv[i++] = US"-MCL";
+  argv[i++] = string_sprintf("%u", continue_limit_mail);
+  argv[i++] = string_sprintf("%u", continue_limit_rcpt);
+  argv[i++] = string_sprintf("%u", continue_limit_rcptdom);
+  }
+#endif
+
 if (queue_run_pid != (pid_t)0)
   {
   argv[i++] = US"-MCQ";
@@ -1976,13 +1998,23 @@ Returns:          FALSE if fork fails; TRUE otherwise
 
 BOOL
 transport_pass_socket(const uschar *transport_name, const uschar *hostname,
-  const uschar *hostaddress, uschar *id, int socket_fd)
+  const uschar *hostaddress, uschar *id, int socket_fd
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+  , unsigned peer_limit_mail, unsigned peer_limit_rcpt, unsigned peer_limit_rcptdom
+#endif
+  )
 {
 pid_t pid;
 int status;
 
 DEBUG(D_transport) debug_printf("transport_pass_socket entered\n");
 
+#ifdef EXPERIMENTAL_ESMTP_LIMITS
+continue_limit_mail = peer_limit_mail;
+continue_limit_rcpt = peer_limit_rcpt;
+continue_limit_rcptdom = peer_limit_rcptdom;
+#endif
+
 if ((pid = exim_fork(US"continued-transport-interproc")) == 0)
   {
   /* Disconnect entirely from the parent process. If we are running in the