Note MAIL commands in -bS batch, to avoid smtp_no_mail logline. Bug 1346
[exim.git] / src / src / smtp_in.c
index a0e44d89a798eeb39dbea46751e683482459c722..b451c48f586b6cce17e5c9f8a5ee3e25924405ac 100644 (file)
@@ -202,7 +202,7 @@ static uschar *smtp_names[] =
   US"HELP", US"MAIL", US"NOOP", US"QUIT", US"RCPT", US"RSET", US"STARTTLS",
   US"VRFY" };
 
-static uschar *protocols[] = {
+static uschar *protocols_local[] = {
   US"local-smtp",        /* HELO */
   US"local-smtps",       /* The rare case EHLO->STARTTLS->HELO */
   US"local-esmtp",       /* EHLO */
@@ -210,12 +210,19 @@ static uschar *protocols[] = {
   US"local-esmtpa",      /* EHLO->AUTH */
   US"local-esmtpsa"      /* EHLO->STARTTLS->EHLO->AUTH */
   };
+static uschar *protocols[] = {
+  US"smtp",              /* HELO */
+  US"smtps",             /* The rare case EHLO->STARTTLS->HELO */
+  US"esmtp",             /* EHLO */
+  US"esmtps",            /* EHLO->STARTTLS->EHLO */
+  US"esmtpa",            /* EHLO->AUTH */
+  US"esmtpsa"            /* EHLO->STARTTLS->EHLO->AUTH */
+  };
 
 #define pnormal  0
 #define pextend  2
 #define pcrpted  1  /* added to pextend or pnormal */
 #define pauthed  2  /* added to pextend */
-#define pnlocal  6  /* offset to remove "local" */
 
 /* Sanity check and validate optional args to MAIL FROM: envelope */
 enum {
@@ -1638,6 +1645,7 @@ while (done <= 0)
     it is the canonical extracted address which is all that is kept. */
 
     case MAIL_CMD:
+    smtp_mailcmd_count++;              /* Count for no-mail log */
     if (sender_address != NULL)
       /* The function moan_smtp_batch() does not return. */
       moan_smtp_batch(smtp_cmd_buffer, "503 Sender already given");
@@ -1894,7 +1902,7 @@ reset later if any of EHLO/AUTH/STARTTLS are received. */
 
 else
   received_protocol =
-    protocols[pnormal] + ((sender_host_address != NULL)? pnlocal : 0);
+    (sender_host_address ? protocols : protocols_local) [pnormal];
 
 /* Set up the buffer for inputting using direct read() calls, and arrange to
 call the local functions instead of the standard C ones. */
@@ -2457,7 +2465,7 @@ if (++synprot_error_count > smtp_max_synprot_errors)
   yield = 1;
   log_write(0, LOG_MAIN|LOG_REJECT, "SMTP call from %s dropped: too many "
     "syntax or protocol errors (last command was \"%s\")",
-    host_and_ident(FALSE), smtp_cmd_buffer);
+    host_and_ident(FALSE), string_printing(smtp_cmd_buffer));
   }
 
 if (code > 0)
@@ -2996,29 +3004,25 @@ else
 
   /* If a host name is known, check it and all its aliases. */
 
-  if (sender_host_name != NULL)
-    {
-    helo_verified = strcmpic(sender_host_name, sender_helo_name) == 0;
-
-    if (helo_verified)
+  if (sender_host_name)
+    if ((helo_verified = strcmpic(sender_host_name, sender_helo_name) == 0))
       {
+      sender_helo_dnssec = sender_host_dnssec;
       HDEBUG(D_receive) debug_printf("matched host name\n");
       }
     else
       {
       uschar **aliases = sender_host_aliases;
-      while (*aliases != NULL)
-        {
-        helo_verified = strcmpic(*aliases++, sender_helo_name) == 0;
-        if (helo_verified) break;
-        }
-      HDEBUG(D_receive)
-        {
-        if (helo_verified)
+      while (*aliases)
+        if ((helo_verified = strcmpic(*aliases++, sender_helo_name) == 0))
+         {
+         sender_helo_dnssec = sender_host_dnssec;
+         break;
+         }
+
+      HDEBUG(D_receive) if (helo_verified)
           debug_printf("matched alias %s\n", *(--aliases));
-        }
       }
-    }
 
   /* Final attempt: try a forward lookup of the helo name */
 
@@ -3026,29 +3030,34 @@ else
     {
     int rc;
     host_item h;
+    dnssec_domains d;
+    host_item *hh;
+
     h.name = sender_helo_name;
     h.address = NULL;
     h.mx = MX_NONE;
     h.next = NULL;
+    d.request = US"*";
+    d.require = US"";
+
     HDEBUG(D_receive) debug_printf("getting IP address for %s\n",
       sender_helo_name);
-    rc = host_find_byname(&h, NULL, 0, NULL, TRUE);
+    rc = host_find_bydns(&h, NULL, HOST_FIND_BY_A,
+                         NULL, NULL, NULL, &d, NULL, NULL);
     if (rc == HOST_FOUND || rc == HOST_FOUND_LOCAL)
-      {
-      host_item *hh = &h;
-      while (hh != NULL)
-        {
+      for (hh = &h; hh; hh = hh->next)
         if (Ustrcmp(hh->address, sender_host_address) == 0)
           {
           helo_verified = TRUE;
+         if (h.dnssec == DS_YES) sender_helo_dnssec = TRUE;
           HDEBUG(D_receive)
-            debug_printf("IP address for %s matches calling address\n",
-              sender_helo_name);
+           {
+            debug_printf("IP address for %s matches calling address\n"
+             "Forward DNS security status: %sverified\n",
+              sender_helo_name, sender_helo_dnssec ? "" : "un");
+           }
           break;
           }
-        hh = hh->next;
-        }
-      }
     }
   }
 
@@ -3314,9 +3323,10 @@ while (done <= 0)
         sender_host_authenticated = au->name;
         authentication_failed = FALSE;
         authenticated_fail_id = NULL;   /* Impossible to already be set? */
+
         received_protocol =
-          protocols[pextend + pauthed + ((tls_in.active >= 0)? pcrpted:0)] +
-            ((sender_host_address != NULL)? pnlocal : 0);
+         (sender_host_address ? protocols : protocols_local)
+           [pextend + pauthed + (tls_in.active >= 0 ? pcrpted:0)];
         s = ss = US"235 Authentication succeeded";
         authenticated_by = au;
         break;
@@ -3416,7 +3426,7 @@ while (done <= 0)
         {
         log_write(0, LOG_MAIN|LOG_REJECT, "SMTP call from %s dropped: too many "
           "syntax or protocol errors (last command was \"%s\")",
-          host_and_ident(FALSE), smtp_cmd_buffer);
+          host_and_ident(FALSE), string_printing(smtp_cmd_buffer));
         done = 1;
         }
 
@@ -3461,7 +3471,7 @@ while (done <= 0)
       now obsolescent, since the verification can now be requested selectively
       at ACL time. */
 
-      helo_verified = helo_verify_failed = FALSE;
+      helo_verified = helo_verify_failed = sender_helo_dnssec = FALSE;
       if (helo_required || helo_verify)
         {
         BOOL tempfail = !smtp_verify_helo();
@@ -3746,16 +3756,13 @@ while (done <= 0)
     helo_seen = TRUE;
 
     /* Reset the protocol and the state, abandoning any previous message. */
-
-    received_protocol = (esmtp?
-      protocols[pextend +
-        ((sender_host_authenticated != NULL)? pauthed : 0) +
-        ((tls_in.active >= 0)? pcrpted : 0)]
-      :
-      protocols[pnormal + ((tls_in.active >= 0)? pcrpted : 0)])
-      +
-      ((sender_host_address != NULL)? pnlocal : 0);
-
+    received_protocol =
+      (sender_host_address ? protocols : protocols_local)
+       [ (esmtp
+         ? pextend + (sender_host_authenticated ? pauthed : 0)
+         : pnormal)
+       + (tls_in.active >= 0 ? pcrpted : 0)
+       ];
     smtp_reset(reset_point);
     toomany = FALSE;
     break;   /* HELO/EHLO */
@@ -3960,7 +3967,7 @@ while (done <= 0)
                    expand_check_condition(authenticated_by->mail_auth_condition,
                        authenticated_by->name, US"authenticator"))
                  break;     /* Accept the AUTH */
-
+    
                ignore_msg = US"server_mail_auth_condition failed";
                if (authenticated_id != NULL)
                  ignore_msg = string_sprintf("%s: authenticated ID=\"%s\"",
@@ -3997,7 +4004,11 @@ while (done <= 0)
 #ifdef EXPERIMENTAL_INTERNATIONAL
         case ENV_MAIL_OPT_UTF8:
          if (smtputf8_advertised)
+           {
+           DEBUG(D_receive) debug_printf("smtputf8 requested\n");
            message_smtputf8 = allow_utf8_domains = TRUE;
+           received_protocol = string_sprintf("utf8%s", received_protocol);
+           }
          break;
 #endif
         /* Unknown option. Stick back the terminator characters and break
@@ -4400,16 +4411,12 @@ while (done <= 0)
       receive_add_recipient(recipient, -1);
  
       /* Set the dsn flags in the recipients_list */
-      if (orcpt != NULL)
-        recipients_list[recipients_count-1].orcpt = orcpt;
-      else
-        recipients_list[recipients_count-1].orcpt = NULL;
+      recipients_list[recipients_count-1].orcpt = orcpt;
+      recipients_list[recipients_count-1].dsn_flags = flags;
 
-      if (flags != 0)
-        recipients_list[recipients_count-1].dsn_flags = flags;
-      else
-        recipients_list[recipients_count-1].dsn_flags = 0;
-      DEBUG(D_receive) debug_printf("DSN: orcpt: %s  flags: %d\n", recipients_list[recipients_count-1].orcpt, recipients_list[recipients_count-1].dsn_flags);
+      DEBUG(D_receive) debug_printf("DSN: orcpt: %s  flags: %d\n",
+       recipients_list[recipients_count-1].orcpt,
+       recipients_list[recipients_count-1].dsn_flags);
       }
 
     /* The recipient was discarded */
@@ -4420,13 +4427,11 @@ while (done <= 0)
         else smtp_user_msg(US"250", user_msg);
       rcpt_fail_count++;
       discarded = TRUE;
-      log_write(0, LOG_MAIN|LOG_REJECT, "%s F=<%s> rejected RCPT %s: "
+      log_write(0, LOG_MAIN|LOG_REJECT, "%s F=<%s> RCPT %s: "
         "discarded by %s ACL%s%s", host_and_ident(TRUE),
-        (sender_address_unrewritten != NULL)?
-        sender_address_unrewritten : sender_address,
+        sender_address_unrewritten? sender_address_unrewritten : sender_address,
         smtp_cmd_argument, recipients_discarded? "MAIL" : "RCPT",
-        (log_msg == NULL)? US"" : US": ",
-        (log_msg == NULL)? US"" : log_msg);
+        log_msg ? US": " : US"", log_msg ? log_msg : US"");
       }
 
     /* Either the ACL failed the address, or it was deferred. */
@@ -4670,13 +4675,13 @@ while (done <= 0)
         set_process_info("handling incoming TLS connection from %s",
           host_and_ident(FALSE));
         }
-      received_protocol = (esmtp?
-        protocols[pextend + pcrpted +
-          ((sender_host_authenticated != NULL)? pauthed : 0)]
-        :
-        protocols[pnormal + pcrpted])
-        +
-        ((sender_host_address != NULL)? pnlocal : 0);
+      received_protocol =
+       (sender_host_address ? protocols : protocols_local)
+         [ (esmtp
+           ? pextend + (sender_host_authenticated ? pauthed : 0)
+           : pnormal)
+         + (tls_in.active >= 0 ? pcrpted : 0)
+         ];
 
       sender_host_authenticated = NULL;
       authenticated_id = NULL;
@@ -5061,7 +5066,7 @@ while (done <= 0)
       done = 2;
       log_write(0, LOG_MAIN|LOG_REJECT, "SMTP call from %s dropped: too many "
         "unrecognized commands (last was \"%s\")", host_and_ident(FALSE),
-        smtp_cmd_buffer);
+        string_printing(smtp_cmd_buffer));
       }
     else
       done = synprot_error(L_smtp_syntax_error, 500, NULL,