Support optional server certificate name checking. Bug 1479

[users/jgh/exim.git] / doc / doc-txt / experimental-spec.txt

diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index 018bfddb92496796f53be1ee56b3f598768c1ec7..58854345420d60d97ee58f20cf268f2fd2f41402 100644 (file)
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -1025,6 +1025,8 @@ Proxy Protocol Support
 Exim now has Experimental "Proxy Protocol" support.  It was built on
 specifications from:
 http://haproxy.1wt.eu/download/1.5/doc/proxy-protocol.txt
+Above URL revised May 2014 to change version 2 spec:
+http://git.1wt.eu/web?p=haproxy.git;a=commitdiff;h=afb768340c9d7e50d8e
 
 The purpose of this function is so that an application load balancer,
 such as HAProxy, can sit in front of several Exim servers and Exim
@@ -1145,6 +1147,25 @@ QUIT
 
 
 
+Certificate name checking
+--------------------------------------------------------------
+The X509 certificates used for TLS are supposed be verified
+that they are owned by the expected host.  The coding of TLS
+support to date has not made these checks.
+
+If built with EXPERIMENTAL_CERTNAMES defined, code is
+included to do so, and a new smtp transport option
+"tls_verify_cert_hostname" supported which takes a list of
+names for which the checks must be made.  The host must
+also be in "tls_verify_hosts".
+
+Both Subject and Subject-Alternate-Name certificate fields
+are supported, as are wildcard certificates (limited to
+a single wildcard being the initial component of a 3-or-more
+component FQDN).
+
+
+
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 End of file
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