postfix-2.12-20150118

postfix/HISTORY

@@ -11196,7 +11196,7 @@ Apologies for any names omitted.
 	in the anvil server, TLS request rate error message in the
 	smtp server, and documentation, but no changes in code.
 	Files: anvil/anvil.c, smtpd/smtpd.c.
- 
+
 20051013
 
 	Horror: some systems have basename() and dirname() and some
@@ -19583,8 +19583,8 @@ Apologies for any names omitted.
 	smtp/smtp.h, smtp/smtp_rcpt.c.
 
 	Logging: the TLS client logged that an "Untrusted" TLS
-	connection was established instead of "Anonymous".
+	connection was established instead of "Anonymous".  Viktor
-	Viktor Dukhovni. File: tls/tls_client.c.
+	Dukhovni. File: tls/tls_client.c.
 
 	Documentation: new self-signed certificate example and
 	updated private CA example. File: proto/TLS_README.html.
@@ -19662,7 +19662,7 @@ Apologies for any names omitted.
 20140323
 
 	Feature: initial merge of Debian-style dynamic linking.
-	Viktor Dukhovni. 
+	Viktor Dukhovni.
 
 20140406
 
@@ -19755,8 +19755,8 @@ Apologies for any names omitted.
 20140508
 
 	Cleanup: dynamicmaps.cf is now installed into $daemon_directory
-	because the file is shared among Postfix instances just like
+	because the file is shared among Postfix instances just
-	postfix-files and other files.  Files: conf/dynamicmaps.cf,
+	like postfix-files and other files.  Files: conf/dynamicmaps.cf,
 	Makefile.in, conf/postfix-files.
 
 	Cleanup: INSTALL is now plain ASCII instead of README format,
@@ -19807,11 +19807,11 @@ Apologies for any names omitted.
 	Support for "make shared=yes" and "make dynamicmaps=yes".
 	New plugin_directory parameter for the location of the
 	dynamicmaps.cf file and for plugins with a relative pathname.
-	See RELEASE_NOTES and INSTALL for details. Files:
+	See RELEASE_NOTES and INSTALL for details. Files: postfix.c,
-	postfix.c, mail_params.[hc], dynamicmaps.c, mail_dict.c,
+	mail_params.[hc], dynamicmaps.c, mail_dict.c, makedefs,
-	makedefs, postfix-files, dynamicmaps.cf, Makefile.in,
+	postfix-files, dynamicmaps.cf, Makefile.in, util/Makefile.in,
-	util/Makefile.in, global/Makefile.in, postlink, postconf.proto.
+	global/Makefile.in, postlink, postconf.proto.  INSTALL.html,
-	INSTALL.html, RELEASE_NOTES.
+	RELEASE_NOTES.
 
 20140523
 
@@ -20243,9 +20243,9 @@ Apologies for any names omitted.
 	Cleanup: change extract_addr() API to indicate that an
 	address is parsed in SMTPUTF8 context. File: smtpd/smtpd.c.
 
-	Cleanup: shared-library build fixes. Viktor Dukhovni.
+	Cleanup: shared-library build fixes. Viktor Dukhovni.  Files:
-	Files: makedefs, dns/Makefile.in, global/Makefile.in,
+	makedefs, dns/Makefile.in, global/Makefile.in, master/Makefile.in,
-	master/Makefile.in, tls/Makefile.in, util/Makefile.in.
+	tls/Makefile.in, util/Makefile.in.
 
 	First general release with SMTPUTF8 support; see RELEASE_NOTES
 	for an initial writeup.  The last pre-SMTPUTF8 release is
@@ -20317,8 +20317,8 @@ Apologies for any names omitted.
 
 20140731
 
-	Feature: the Postfix SMTP server now logs at the end of
+	Feature: the Postfix SMTP server now logs at the end of a
-	a session how many times each SMTP command was successfully
+	session how many times each SMTP command was successfully
 	invoked, followed by the total number of invocations if it
 	is different.  File: smtpd/smtpd.c.
 
@@ -20431,7 +20431,7 @@ Apologies for any names omitted.
 
 	Cleanup: dict_db and dict_lmdb global settings. Files:
 	global/mail_params.c, util/dict_open.c.
-	
+
 	Feature: unionmap, based on contribution by Roel van Meer.
 	Files: mantools/postlink, postconf/postconf.c (manpage),
 	proto/DATABASE_README.html, util/dict_open.c, util/dict_union.[hc].
@@ -20461,9 +20461,9 @@ Apologies for any names omitted.
 
 20140927
 
-	Cleanup: specify { name = value } in per-Milter settings, to support
+	Cleanup: specify { name = value } in per-Milter settings,
-	space around the "=" or comma/space within the value. Files:
+	to support space around the "=" or comma/space within the
-	global/attr_over.[hc]. 
+	value. Files: global/attr_over.[hc].
 
 	Cleanup: "postconf -n" now only shows config_directory when
 	an override is in effect (environment, -c or -o).
@@ -20504,15 +20504,14 @@ Apologies for any names omitted.
 
 	Cleanup: force LANG=C to prevent groff from outputting
 	non-ASCII cruft into the HTML-ized manpages.  Files:
-	html/Makefile.in, proto/Makefile.in, many HTML output
+	html/Makefile.in, proto/Makefile.in, many HTML output files.
-	files.
 
 20140929
 
 	Cleanup: the table-driven code for per-Milter and per-policy
-	overrides now updates arbitrary variables, so that it can also
+	overrides now updates arbitrary variables, so that it can
-	be used for, say, TLS policies. Files: global/attr_override.[hc],
+	also be used for, say, TLS policies. Files:
-	smtpd/smtpd_check.c, milter/milter.c.
+	global/attr_override.[hc], smtpd/smtpd_check.c, milter/milter.c.
 
 	Documentation: support for "{ argument with whitespace }"
 	in master(5) and pipe(8). Files: proto/master, src/pipe/pipe.c.
@@ -20524,12 +20523,12 @@ Apologies for any names omitted.
 
 20141001
 
-	Safety: backwards-compatibility safety net that forces Postfix
+	Safety: backwards-compatibility safety net that forces
-	to run with backwards-compatible default settings after an
+	Postfix to run with backwards-compatible default settings
-	upgrade to a newer Postfix version.  Postfix logs all uses
+	after an upgrade to a newer Postfix version.  Postfix logs
-	of those backwards-compatible default settings so that the
+	all uses of those backwards-compatible default settings so
-	system administator can determine whether or not some
+	that the system administator can determine whether or not
-	backwards-compatible default settings need to be made
+	some backwards-compatible default settings need to be made
 	permanent in main.cf or master.cf.  All this is controlled
 	with a new compatibility_level parameter, default value 0.
 	Files: global/mail_params.[hc], trivial-rewrite/rewrite.c,
@@ -20556,9 +20555,9 @@ Apologies for any names omitted.
 
 20141003
 
-	Workaround: kludge for multiple paragraphs of text in indented
+	Workaround: kludge for multiple paragraphs of text in
-	paragraphs.  Files: mantools/postconf2html, mantools/postconf2man,
+	indented paragraphs.  Files: mantools/postconf2html,
-	proto/Makefile.in, proto/postconf.proto
+	mantools/postconf2man, proto/Makefile.in, proto/postconf.proto
 
 20141005
 
@@ -20605,8 +20604,9 @@ Apologies for any names omitted.
 	a new COMPATIBILITY_README document. Files: proto/postconf.proto,
 	proto/COMPATIBILITY_README.html html/index.html.
 
-	Documentation: update the conf/main.cf compatibility_level setting 
+	Documentation: update the conf/main.cf compatibility_level
-	for new Postfix installs, and updated a reminder in mail_params.h.
+	setting for new Postfix installs, and updated a reminder
+	in mail_params.h.
 
 20141010
 
@@ -20898,7 +20898,7 @@ Apologies for any names omitted.
 	about that later.  Files: smtpd/smtpd_check.c, smtp/smtp_addr.c,
 	dns/dns.h, dns/dns_lookup.c.
 
-	Cleanup: eliminate TLS state duplication from state->tls 
+	Cleanup: eliminate TLS state duplication from state->tls
 	to session->tls. Viktor Dukhovni. Files: src/smtp/smtp.h,
 	src/smtp/smtp_connect.c, src/smtp/smtp_proto.c,
 	src/smtp/smtp_reuse.c, src/smtp/smtp_session.c.
@@ -21011,8 +21011,8 @@ Apologies for any names omitted.
 
 20141208
 
-	Bugfix (introduced: 20141207): in new #ifdef, && should be ||.
+	Bugfix (introduced: 20141207): in new #ifdef, && should be
-	File: smtpd.c.
+	||.  File: smtpd.c.
 
 20141210
 
@@ -21180,7 +21180,7 @@ Apologies for any names omitted.
 
 	Cleanup: instead of making up new names, use a consistent
 	CA_ prefix for macros that implement compile-time argument
-	typechecks for non-protocol attribute-value APIs. This 
+	typechecks for non-protocol attribute-value APIs. This
 	transformation and its verification are mechanical.
 
 	Bugfix (introduced: Postfix 1.1, but latent before 2.12):
@@ -21204,11 +21204,11 @@ Apologies for any names omitted.
 
 20141228
 
-	Cleanup: the IDNA conversion routines now accept both
+	Cleanup: the IDNA conversion routines now accept both ASCII
-	ASCII and UTF8 inputs. The functions als verify that 
+	and UTF8 inputs. The functions als verify that either their
-	either their result is a valid ASCII domain name or that
+	result is a valid ASCII domain name or that it converts
-	it converts into a valid ASCII domain name. Files:
+	into a valid ASCII domain name. Files: util/midna.c,
-	util/midna.c, util/midna_test.in, util/midna_test.ref.
+	util/midna_test.in, util/midna_test.ref.
 
 20141230
 
@@ -21238,9 +21238,10 @@ Apologies for any names omitted.
 	byte values, and UTF-8 case folding. As recommended at
 	http://www.w3.org/International/wiki/Case_folding for
 	caseless string comparison, this uses the en_US locale to
-	avoid surprises. The implementatin handles
+	avoid surprises. The implementatin handles the entire RFC
-        the entire RFC 3629 Unicode range (code points U+0000..U+10FFFF
+	3629 Unicode range (code points U+0000..U+10FFFF including
-        including surrogates) and is chroot(2) safe. Files: casefold.c, stringops.h.
+	surrogates) and is chroot(2) safe. Files: casefold.c,
+	stringops.h.
 
 	Infrastructure: revised the midna_domain_to_ascii and
 	midna_domain_to_utf8 domain name conversion functions after
@@ -21412,3 +21413,16 @@ Apologies for any names omitted.
 
 	Cleanup: missing " in \%s\" in postscreen(8) fatal error
 	messages. Iain Hibbert. File: postconf/postconf_master.c.
+
+20150118
+
+	Bugfix (introduced: 20140731): when a connection timed out
+	before any command was received, the Postfix SMTP server
+	"disconnect from" logging would show the content of the
+	last SMTP server response (421 4.4.2 $myhostname error:
+	timeout exceeded) instead of per-command statistics, because
+	there were no statistics to report.  The Postfix SMTP server
+	now always logs the total number of commands (commands=x/y)
+	even when the client did not send any. This helps logfile
+	analyzers to recognize sessions without commands.  File:
+	smtpd/smtpd.c.

postfix/README_FILES/COMPATIBILITY_README

@@ -151,9 +151,11 @@ provide ETRN service for that domain, then the system administrator should make
 the backwards-compatible setting "relay_domains = $mydestination" permanent in
 main.cf:
 
-    # ppoossttccoonnff rreellaayy__ddoommaaiinnss==$$mmyyddeessttiinnaattiioonn
+    # ppoossttccoonnff ''rreellaayy__ddoommaaiinnss==$$mmyyddeessttiinnaattiioonn''
     # ppoossttffiixx rreellooaadd
 
+Note: quotes are required as indicated above.
+
 Instead of $mydestination, it may be better to specify an explicit list of
 domain names.
 

postfix/WISHLIST

@@ -8,6 +8,12 @@ Wish list:
 
 	Things to do after the stable release:
 
+	postconf -P: emit '{ name = value }' when editing/adding a
+	parameter whose new value contains whitespace.
+
+	In release-notes add commands=x/y logging to the command
+	statistics.
+
 	UTF8 DNS[BW]L domain name.
 
 	Consolidate maps flags in mail_params.h instead of having

postfix/html/COMPATIBILITY_README.html

@@ -253,11 +253,13 @@ administrator should make the backwards-compatible setting
 
 <blockquote>
 <pre>
-# <b>postconf <a href="postconf.5.html#relay_domains">relay_domains</a>=$<a href="postconf.5.html#mydestination">mydestination</a></b>
+# <b>postconf '<a href="postconf.5.html#relay_domains">relay_domains</a>=$<a href="postconf.5.html#mydestination">mydestination</a>'</b>
 # <b>postfix reload</b>
 </pre>
 </blockquote>
 
+<p> Note: quotes are required as indicated above. </p>
+
 <p> Instead of $<a href="postconf.5.html#mydestination">mydestination</a>, it may be better to specify an
 explicit list of domain names. </p>
 

postfix/proto/COMPATIBILITY_README.html

@@ -253,11 +253,13 @@ administrator should make the backwards-compatible setting
 
 <blockquote>
 <pre>
-# <b>postconf relay_domains=$mydestination</b>
+# <b>postconf 'relay_domains=$mydestination'</b>
 # <b>postfix reload</b>
 </pre>
 </blockquote>
 
+<p> Note: quotes are required as indicated above. </p>
+
 <p> Instead of $mydestination, it may be better to specify an
 explicit list of domain names. </p>
 

postfix/src/global/mail_version.h

@@ -20,7 +20,7 @@
   * Patches change both the patchlevel and the release date. Snapshots have no
   * patchlevel; they change the release date only.
   */
-#define MAIL_RELEASE_DATE	"20150117"
+#define MAIL_RELEASE_DATE	"20150118"
 #define MAIL_VERSION_NUMBER	"2.12"
 
 #ifdef SNAPSHOT

postfix/src/posttls-finger/posttls-finger.c

@@ -228,6 +228,12 @@
 /* .IP "\fB-v\fR"
 /*	Enable verose Postfix logging.  Specify more than once to increase
 /*	the level of verbose logging.
+/* .IP "\fB-w\fR"
+/*	Enable outgoing TLS wrapper mode, or SMTPS support.  This is typically
+/*	provided on port 465 by servers that are compatible with the ad-hoc
+/*	SMTP in SSL protocol, rather than the standard STARTTLS protocol.
+/*	The destination \fIdomain\fR:\fIport\fR should of course provide such
+/*	a service.
 /* .IP "[\fBinet:\fR]\fIdomain\fR[:\fIport\fR]"
 /*	Connect via TCP to domain \fIdomain\fR, port \fIport\fR. The default
 /*	port is \fBsmtp\fR (or 24 with LMTP).  With SMTP an MX lookup is
@@ -421,6 +427,7 @@ typedef struct STATE {
     VSTRING *buffer;			/* Response buffer */
     VSTREAM *stream;			/* Open connection */
     int     level;			/* TLS security level */
+    int     wrapper_mode;		/* SMTPS support */
 #ifdef USE_TLS
     char   *mdalg;			/* fingerprint digest algorithm */
     char   *CAfile;			/* Trusted public CAs */
@@ -547,6 +554,33 @@ static char *exception_text(int except)
     }
 }
 
+/* greeting - read server's 220 greeting */
+
+static int greeting(STATE *state)
+{
+    VSTREAM *stream = state->stream;
+    int     except;
+    RESPONSE *resp;
+
+    /*
+     * Prepare for disaster.
+     */
+    smtp_stream_setup(stream, conn_tmout, 1);
+    if ((except = vstream_setjmp(stream)) != 0) {
+	msg_info("%s while reading server greeting", exception_text(except));
+	return (1);
+    }
+
+    /*
+     * Read and parse the server's SMTP greeting banner.
+     */
+    if (((resp = response(state, 1))->code / 100) != 2) {
+	msg_info("SMTP service not available: %d %s", resp->code, resp->str);
+	return (1);
+    }
+    return (0);
+}
+
 /* ehlo - send EHLO/LHLO */
 
 static RESPONSE *ehlo(STATE *state)
@@ -647,26 +681,27 @@ static int starttls(STATE *state)
     VSTREAM *stream = state->stream;
     TLS_CLIENT_START_PROPS tls_props;
 
-    /* SMTP stream with deadline timeouts */
+    if (state->wrapper_mode == 0) {
-    smtp_stream_setup(stream, smtp_tmout, 1);
+	/* SMTP stream with deadline timeouts */
-    if ((except = vstream_setjmp(stream)) != 0) {
+	smtp_stream_setup(stream, smtp_tmout, 1);
-	msg_fatal("%s while sending STARTTLS", exception_text(except));
+	if ((except = vstream_setjmp(stream)) != 0) {
-	return (1);
+	    msg_fatal("%s while sending STARTTLS", exception_text(except));
+	    return (1);
+	}
+	command(state, state->pass == 1, "STARTTLS");
+
+	resp = response(state, state->pass == 1);
+	if (resp->code / 100 != 2) {
+	    msg_info("STARTTLS rejected: %d %s", resp->code, resp->str);
+	    return (1);
+	}
+
+	/*
+	 * Discard any plain-text data that may be piggybacked after the
+	 * server's 220 STARTTLS reply. Should we abort the session instead?
+	 */
+	vstream_fpurge(stream, VSTREAM_PURGE_READ);
     }
-    command(state, state->pass == 1, "STARTTLS");
-
-    resp = response(state, state->pass == 1);
-    if (resp->code / 100 != 2) {
-	msg_info("STARTTLS rejected: %d %s", resp->code, resp->str);
-	return (1);
-    }
-
-    /*
-     * Discard any plain-text data that may be piggybacked after the server's
-     * 220 STARTTLS reply. Should we abort the session instead?
-     */
-    vstream_fpurge(stream, VSTREAM_PURGE_READ);
-
 #define ADD_EXCLUDE(vstr, str) \
     do { \
 	if (*(str)) \
@@ -718,6 +753,9 @@ static int starttls(STATE *state)
 	state->stream = 0;
 	return (1);
     }
+    if (state->wrapper_mode && greeting(state) != 0)
+	return (1);
+
     if (state->pass == 1) {
 	ehlo(state);
 	if (!TLS_CERT_IS_PRESENT(state->tls_context))
@@ -743,42 +781,27 @@ static int doproto(STATE *state)
     int     except;
     int     n;
     char   *lines;
-    char   *words;
+    char   *words = 0;
     char   *word;
 
-    /*
+    if (!state->wrapper_mode) {
-     * Prepare for disaster.
+	if (greeting(state) != 0)
-     */
+	    return (1);
-    smtp_stream_setup(stream, conn_tmout, 1);
+	if ((resp = ehlo(state)) == 0)
-    if ((except = vstream_setjmp(stream)) != 0)
+	    return (1);
-	msg_fatal("%s while reading server greeting", exception_text(except));
 
-    /*
+	lines = resp->str;
-     * Read and parse the server's SMTP greeting banner.
+	for (n = 0; (words = mystrtok(&lines, "\n")) != 0; ++n) {
-     */
+	    if ((word = mystrtok(&words, " \t=")) != 0) {
-    if (((resp = response(state, 1))->code / 100) != 2) {
+		if (n == 0)
-	msg_info("SMTP service not available: %d %s", resp->code, resp->str);
+		    state->helo = mystrdup(word);
-	return (1);
+		if (strcasecmp(word, "STARTTLS") == 0)
-    }
+		    break;
-
+	    }
-    /*
-     * Send the standard greeting with our hostname
-     */
-    if ((resp = ehlo(state)) == 0)
-	return (1);
-
-    lines = resp->str;
-    for (n = 0; (words = mystrtok(&lines, "\n")) != 0; ++n) {
-	if ((word = mystrtok(&words, " \t=")) != 0) {
-	    if (n == 0)
-		state->helo = mystrdup(word);
-	    if (strcasecmp(word, "STARTTLS") == 0)
-		break;
 	}
     }
-
 #ifdef USE_TLS
-    if (words && state->tls_ctx)
+    if ((state->wrapper_mode || words) && state->tls_ctx)
 	if (starttls(state))
 	    return (1);
 #endif
@@ -793,7 +816,6 @@ static int doproto(STATE *state)
     }
     command(state, 1, "QUIT");
     (void) response(state, 1);
-
     return (0);
 }
 
@@ -1191,7 +1213,7 @@ static int dane_host_level(STATE *state, DNS_RR *addr)
     int     level = state->level;
 
 #ifdef USE_TLS
-    if (level == TLS_LEV_DANE) {
+    if (TLS_DANE_BASED(level)) {
 	if (state->mx == 0 || state->mx->dnssec_valid) {
 	    if (state->log_mask & (TLS_LOG_CERTMATCH | TLS_LOG_VERBOSE))
 		tls_dane_verbose(1);
@@ -1214,7 +1236,8 @@ static int dane_host_level(STATE *state, DNS_RR *addr)
 			   HNAME(addr), ntohs(state->port));
 		level = TLS_LEV_INVALID;
 	    } else if (tls_dane_notfound(state->ddane)
-		       || tls_dane_unusable(state->ddane)) {
+		       || tls_dane_unusable(state->ddane)
+		       || level == TLS_LEV_DANE_ONLY) {
 		if (msg_verbose)
 		    msg_info("no %sTLSA records found, "
 			     "resorting to \"secure\"",
@@ -1223,7 +1246,7 @@ static int dane_host_level(STATE *state, DNS_RR *addr)
 		level = TLS_LEV_SECURE;
 	    } else if (!TLS_DANE_HASTA(state->ddane)
 		       && !TLS_DANE_HASEE(state->ddane)) {
-		msg_panic("empty DANE match list");
+		msg_panic("DANE activated with no TLSA records to match");
 	    } else {
 		if (state->match)
 		    argv_free(state->match);
@@ -1531,7 +1554,7 @@ static void usage(void)
 #ifdef USE_TLS
     fprintf(stderr, "usage: %s %s \\\n\t%s \\\n\t%s \\\n\t%s"
 	    " destination [match ...]\n", var_procname,
-	    "[-acCfSv] [-t conn_tmout] [-T cmd_tmout] [-L logopts]",
+	    "[-acCfSvw] [-t conn_tmout] [-T cmd_tmout] [-L logopts]",
 	 "[-h host_lookup] [-l level] [-d mdalg] [-g grade] [-p protocols]",
 	    "[-A tafile] [-F CAfile.pem] [-P CApath/] [-m count] [-r delay]",
 	    "[-o name=value]");
@@ -1594,6 +1617,7 @@ static void parse_options(STATE *state, int argc, char *argv[])
     state->pass = 1;
     state->reconnect = -1;
     state->max_reconnect = 5;
+    state->wrapper_mode = 0;
 #ifdef USE_TLS
     state->protocols = mystrdup("!SSLv2");
     state->grade = mystrdup("medium");
@@ -1603,7 +1627,7 @@ static void parse_options(STATE *state, int argc, char *argv[])
 
 #define OPTS "a:ch:o:St:T:v"
 #ifdef USE_TLS
-#define TLSOPTS "A:Cd:fF:g:l:L:m:p:P:r:"
+#define TLSOPTS "A:Cd:fF:g:l:L:m:p:P:r:w"
 
     state->mdalg = mystrdup("sha1");
     state->CApath = mystrdup("");
@@ -1692,6 +1716,9 @@ static void parse_options(STATE *state, int argc, char *argv[])
 	case 'r':
 	    state->reconnect = atoi(optarg);
 	    break;
+	case 'w':
+	    state->wrapper_mode = 1;
+	    break;
 #endif
 	}
     }
@@ -1725,10 +1752,9 @@ static void parse_options(STATE *state, int argc, char *argv[])
 	state->level = tls_level_lookup(state->options.level);
 
 	switch (state->level) {
-	case TLS_LEV_DANE_ONLY:
-	    state->level = TLS_LEV_DANE;
-	    break;
 	case TLS_LEV_NONE:
+	    if (state->wrapper_mode)
+		msg_fatal("SSL wrapper mode requires that TLS not be disabled");
 	    return;
 	case TLS_LEV_INVALID:
 	    msg_fatal("Invalid TLS level \"%s\"", state->options.level);
@@ -1741,8 +1767,8 @@ static void parse_options(STATE *state, int argc, char *argv[])
      * required for DANE support.
      */
     tls_init(state);
-    if (state->level == TLS_LEV_DANE && !tls_dane_avail()) {
+    if (TLS_DANE_BASED(state->level) && !tls_dane_avail()) {
-	msg_warn("The \"dane\" TLS security level is not available");
+	msg_warn("DANE TLS support is not available, resorting to \"secure\"");
 	state->level = TLS_LEV_SECURE;
     }
     state->tls_bio = 0;
@@ -1780,6 +1806,7 @@ static void parse_match(STATE *state, int argc, char *argv[])
 				    state->mdalg, *argv++, "");
 	break;
     case TLS_LEV_DANE:
+    case TLS_LEV_DANE_ONLY:
 	state->match = argv_alloc(2);
 	argv_add(state->match, "nexthop", "hostname", ARGV_END);
 	break;

postfix/src/smtp/smtp_tls_policy.c

@@ -437,6 +437,7 @@ static void set_cipher_grade(SMTP_TLS_POLICY *tls)
 	break;
 
     case TLS_LEV_DANE:
+    case TLS_LEV_DANE_ONLY:
     case TLS_LEV_FPRINT:
     case TLS_LEV_VERIFY:
     case TLS_LEV_SECURE:
@@ -534,7 +535,7 @@ static void *policy_create(const char *unused_key, void *context)
      * "dane-only" changes to "dane" once we obtain the requisite TLSA
      * records.
      */
-    if (tls->level == TLS_LEV_DANE || tls->level == TLS_LEV_DANE_ONLY)
+    if (TLS_DANE_BASED(tls->level))
 	dane_init(tls, iter);
     if (tls->level == TLS_LEV_INVALID)
 	return ((void *) tls);
@@ -563,6 +564,7 @@ static void *policy_create(const char *unused_key, void *context)
     case TLS_LEV_MAY:
     case TLS_LEV_ENCRYPT:
     case TLS_LEV_DANE:
+    case TLS_LEV_DANE_ONLY:
 	break;
     case TLS_LEV_FPRINT:
 	if (tls->dane == 0)
@@ -844,7 +846,6 @@ static void dane_init(SMTP_TLS_POLICY *tls, SMTP_ITERATOR *iter)
     } else if (!TLS_DANE_HASEE(dane))
 	msg_panic("empty DANE match list");
     tls->dane = dane;
-    tls->level = TLS_LEV_DANE;
     return;
 }
 

postfix/src/smtpd/smtpd.c

@@ -5132,7 +5132,13 @@ static void smtpd_proto(SMTPD_STATE *state)
 static char *smtpd_format_cmd_stats(VSTRING *buf)
 {
     SMTPD_CMD *cmdp;
+    int     all_success = 0;
+    int     all_total = 0;
 
+    /*
+     * Log the statistics. Note that this loop produces no output when no
+     * command was received. We address that after the loop.
+     */
     VSTRING_RESET(buf);
     for (cmdp = smtpd_cmd_table; /* see below */ ; cmdp++) {
 	if (cmdp->total_count > 0) {
@@ -5141,10 +5147,22 @@ static char *smtpd_format_cmd_stats(VSTRING *buf)
 				   cmdp->success_count);
 	    if (cmdp->success_count != cmdp->total_count)
 		vstring_sprintf_append(buf, "/%d", cmdp->total_count);
+	    all_success += cmdp->success_count;
+	    all_total += cmdp->total_count;
 	}
 	if (cmdp->name == 0)
 	    break;
     }
+
+    /*
+     * Log total numbers, so that logfile analyzers will see something even
+     * if the above loop produced no output. When no commands were received
+     * log "0/0" to simplify the identification of abnormal sessions: any
+     * statistics with [0-9]/ indicate that there was a problem.
+     */
+    vstring_sprintf_append(buf, " commands=%d", all_success);
+    if (all_success != all_total || all_total == 0)
+	vstring_sprintf_append(buf, "/%d", all_total);
     return (lowercase(STR(buf)));
 }
 

postfix/src/tls/tls.h

@@ -53,6 +53,8 @@
 #define TLS_MUST_MATCH(l)	((l) > TLS_LEV_ENCRYPT)
 #define TLS_MUST_TRUST(l)	((l) >= TLS_LEV_DANE)
 #define TLS_MUST_PKIX(l)	((l) >= TLS_LEV_VERIFY)
+#define TLS_OPPORTUNISTIC(l)	((l) == TLS_LEV_MAY || (l) == TLS_LEV_DANE)
+#define TLS_DANE_BASED(l)	((l) == TLS_LEV_DANE || (l) == TLS_LEV_DANE_ONLY)
 
 extern const NAME_CODE tls_level_table[];
 

postfix/src/tls/tls_client.c

@@ -827,10 +827,10 @@ TLS_SESS_STATE *tls_client_start(const TLS_CLIENT_START_PROPS *props)
     /*
      * When certificate verification is required, log trust chain validation
      * errors even when disabled by default for opportunistic sessions. For
-     * "dane" this only applies when using trust-anchor associations.
+     * DANE this only applies when using trust-anchor associations.
      */
     if (TLS_MUST_TRUST(props->tls_level)
-	&& (props->tls_level != TLS_LEV_DANE || TLS_DANE_HASTA(props->dane)))
+      && (!TLS_DANE_BASED(props->tls_level) || TLS_DANE_HASTA(props->dane)))
 	log_mask |= TLS_LOG_UNTRUSTED;
 
     if (log_mask & TLS_LOG_VERBOSE)
@@ -849,8 +849,8 @@ TLS_SESS_STATE *tls_client_start(const TLS_CLIENT_START_PROPS *props)
 		 props->namaddr, props->protocols);
 	return (0);
     }
-    /* The DANE level requires SSLv3 or later, not SSLv2. */
+    /* DANE requires SSLv3 or later, not SSLv2. */
-    if (props->tls_level == TLS_LEV_DANE)
+    if (TLS_DANE_BASED(props->tls_level))
 	protomask |= TLS_PROTOCOL_SSLv2;
 
     /*
@@ -945,7 +945,7 @@ TLS_SESS_STATE *tls_client_start(const TLS_CLIENT_START_PROPS *props)
 	}
     }
 #ifdef TLSEXT_MAXLEN_host_name
-    if (props->tls_level == TLS_LEV_DANE
+    if (TLS_DANE_BASED(props->tls_level)
 	&& strlen(props->host) <= TLSEXT_MAXLEN_host_name) {
 
 	/*

postfix/src/tls/tls_fprint.c

@@ -227,7 +227,7 @@ char   *tls_serverid_digest(const TLS_CLIENT_START_PROPS *props, long protomask,
 #if 0
 	digest_dane(props->dane, ee);		/* See above */
 #endif
-	digest_string(props->tls_level == TLS_LEV_DANE ? props->host : "");
+	digest_string(TLS_DANE_BASED(props->tls_level) ? props->host : "");
     }
     checkok(EVP_DigestFinal_ex(mdctx, md_buf, &md_len));
     EVP_MD_CTX_destroy(mdctx);