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From: Cary Huang <[email protected]>
To: Daniel Gustafsson <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: sslinfo extension - add notbefore and notafter timestamps
Date: Fri, 30 Jun 2023 11:12:03 -0700
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
	<[email protected]>
	<[email protected]>
	<[email protected]>

 > This needs to adjust the tests in src/test/ssl which now fails due to SELECT *
 > returning a row which doesn't match what the test was coded for.

Thank you so much for pointing out. I have adjusted the extra ssl test to account for the extra columns returned. It should not fail now. 
 
> The new patchset isn't updating contrib/sslinfo/meson with the 1.3 update so it
 > fails to build with Meson. 

Thanks again for pointing out, I have adjusted the meson build file to include the 1.3 update

Please see attached patches for the fixes. 
Thank you so much!

Cary Huang
-------------
HighGo Software Inc. (Canada)
[email protected]
www.highgo.ca


Attachments:

  [application/octet-stream] v3-0001-sslinfo-add-notbefore-and-notafter-timestamps.patch (6.9K, ../[email protected]/2-v3-0001-sslinfo-add-notbefore-and-notafter-timestamps.patch)
  download | inline diff:
diff --git a/contrib/sslinfo/Makefile b/contrib/sslinfo/Makefile
index dd1ff83b16..c7a7410439 100644
--- a/contrib/sslinfo/Makefile
+++ b/contrib/sslinfo/Makefile
@@ -6,7 +6,7 @@ OBJS = \
 	sslinfo.o
 
 EXTENSION = sslinfo
-DATA = sslinfo--1.2.sql sslinfo--1.1--1.2.sql sslinfo--1.0--1.1.sql
+DATA = sslinfo--1.3.sql sslinfo--1.2--1.3.sql sslinfo--1.1--1.2.sql sslinfo--1.0--1.1.sql
 PGFILEDESC = "sslinfo - information about client SSL certificate"
 
 ifdef USE_PGXS
diff --git a/contrib/sslinfo/meson.build b/contrib/sslinfo/meson.build
index 999456d3a4..296adbec8a 100644
--- a/contrib/sslinfo/meson.build
+++ b/contrib/sslinfo/meson.build
@@ -25,7 +25,8 @@ contrib_targets += sslinfo
 install_data(
   'sslinfo--1.0--1.1.sql',
   'sslinfo--1.1--1.2.sql',
-  'sslinfo--1.2.sql',
+  'sslinfo--1.2--1.3.sql',
+  'sslinfo--1.3.sql',
   'sslinfo.control',
   kwargs: contrib_data_args,
 )
diff --git a/contrib/sslinfo/sslinfo--1.2.sql b/contrib/sslinfo/sslinfo--1.2--1.3.sql
similarity index 100%
rename from contrib/sslinfo/sslinfo--1.2.sql
rename to contrib/sslinfo/sslinfo--1.2--1.3.sql
diff --git a/contrib/sslinfo/sslinfo--1.3.sql b/contrib/sslinfo/sslinfo--1.3.sql
new file mode 100644
index 0000000000..62abec5b5c
--- /dev/null
+++ b/contrib/sslinfo/sslinfo--1.3.sql
@@ -0,0 +1,56 @@
+/* contrib/sslinfo/sslinfo--1.3.sql */
+
+-- complain if script is sourced in psql, rather than via CREATE EXTENSION
+\echo Use "CREATE EXTENSION sslinfo" to load this file. \quit
+
+CREATE FUNCTION ssl_client_serial() RETURNS numeric
+AS 'MODULE_PATHNAME', 'ssl_client_serial'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_is_used() RETURNS boolean
+AS 'MODULE_PATHNAME', 'ssl_is_used'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_version() RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_version'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_cipher() RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_cipher'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_client_cert_present() RETURNS boolean
+AS 'MODULE_PATHNAME', 'ssl_client_cert_present'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_client_dn_field(text) RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_client_dn_field'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_issuer_field(text) RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_issuer_field'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_client_dn() RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_client_dn'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_issuer_dn() RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_issuer_dn'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_client_get_notbefore() RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_client_get_notbefore'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION ssl_client_get_notafter() RETURNS text
+AS 'MODULE_PATHNAME', 'ssl_client_get_notafter'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
+
+CREATE FUNCTION
+ssl_extension_info(OUT name text,
+    OUT value text,
+    OUT critical boolean
+) RETURNS SETOF record
+AS 'MODULE_PATHNAME', 'ssl_extension_info'
+LANGUAGE C STRICT PARALLEL RESTRICTED;
diff --git a/contrib/sslinfo/sslinfo.c b/contrib/sslinfo/sslinfo.c
index 5fd46b9874..47bc549027 100644
--- a/contrib/sslinfo/sslinfo.c
+++ b/contrib/sslinfo/sslinfo.c
@@ -34,6 +34,7 @@ PG_MODULE_MAGIC;
 
 static Datum X509_NAME_field_to_text(X509_NAME *name, text *fieldName);
 static Datum ASN1_STRING_to_text(ASN1_STRING *str);
+static Datum ASN1_TIME_to_text(ASN1_TIME *time);
 
 /*
  * Function context for data persisting over repeated calls.
@@ -225,6 +226,36 @@ X509_NAME_field_to_text(X509_NAME *name, text *fieldName)
 }
 
 
+/*
+ * Converts OpenSSL ASN1_TIME structure into text
+ *
+ * Convert ASN1_TIME structure to text representation in ISO 8601
+ * format in UTC time (YYYY-MM-DDThh:mm:ssZ)
+ *
+ * Parameter: time - OpenSSL ASN1_TIME structure.
+ *
+ * Returns Datum, which can be directly returned from a C language SQL
+ * function.
+ */
+static Datum
+ASN1_TIME_to_text(ASN1_TIME *time)
+{
+	struct tm 	tm_time;
+	char		str_time[NAMEDATALEN];
+	text	   *result;
+
+	ASN1_TIME_to_tm(time, &tm_time);
+
+	memset(str_time, 0, sizeof(str_time));
+	snprintf(str_time, sizeof(str_time), "%04d-%02d-%02dT%02d:%02d:%02dZ",
+			tm_time.tm_year+1900, tm_time.tm_mon+1, tm_time.tm_mday,
+			tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec);
+
+	result = cstring_to_text(str_time);
+	PG_RETURN_TEXT_P(result);
+}
+
+
 /*
  * Returns specified field of client certificate distinguished name
  *
@@ -482,3 +513,42 @@ ssl_extension_info(PG_FUNCTION_ARGS)
 	/* All done */
 	SRF_RETURN_DONE(funcctx);
 }
+
+/*
+ * Returns current client certificate notBefore timestamp in
+ * ISO 8601 format of YYYY-MM-DDThh:mm:ssZ
+ */
+PG_FUNCTION_INFO_V1(ssl_client_get_notbefore);
+Datum
+ssl_client_get_notbefore(PG_FUNCTION_ARGS)
+{
+	X509	   *cert = MyProcPort->peer;
+	ASN1_TIME *asn1_notbefore = NULL;
+
+	if (!MyProcPort->ssl_in_use || !MyProcPort->peer_cert_valid)
+		PG_RETURN_NULL();
+
+	asn1_notbefore = X509_getm_notBefore(cert);
+
+	return ASN1_TIME_to_text(asn1_notbefore);
+}
+
+/*
+ * Returns current client certificate notAfter timestamp in
+ * ISO 8601 format of YYYY-MM-DDThh:mm:ssZ
+ */
+PG_FUNCTION_INFO_V1(ssl_client_get_notafter);
+Datum
+ssl_client_get_notafter(PG_FUNCTION_ARGS)
+{
+	X509	   *cert = MyProcPort->peer;
+	ASN1_TIME *asn1_notafter = NULL;
+
+	if (!MyProcPort->ssl_in_use || !MyProcPort->peer_cert_valid)
+		PG_RETURN_NULL();
+
+	asn1_notafter = X509_getm_notAfter(cert);
+
+	return ASN1_TIME_to_text(asn1_notafter);
+}
+
diff --git a/contrib/sslinfo/sslinfo.control b/contrib/sslinfo/sslinfo.control
index c7754f924c..b53e95b7da 100644
--- a/contrib/sslinfo/sslinfo.control
+++ b/contrib/sslinfo/sslinfo.control
@@ -1,5 +1,5 @@
 # sslinfo extension
 comment = 'information about SSL certificates'
-default_version = '1.2'
+default_version = '1.3'
 module_pathname = '$libdir/sslinfo'
 relocatable = true
diff --git a/doc/src/sgml/sslinfo.sgml b/doc/src/sgml/sslinfo.sgml
index 85d49f6653..9c0b32a1b6 100644
--- a/doc/src/sgml/sslinfo.sgml
+++ b/doc/src/sgml/sslinfo.sgml
@@ -240,6 +240,36 @@ emailAddress
     </para>
     </listitem>
    </varlistentry>
+
+   <varlistentry>
+    <term>
+     <function>ssl_client_get_notbefore() returns text</function>
+     <indexterm>
+      <primary>ssl_client_get_notbefore</primary>
+     </indexterm>
+    </term>
+    <listitem>
+    <para>
+     Return the <structfield>not before</structfield> UTC timestamp of the client 
+     certificate.
+    </para>
+    </listitem>
+   </varlistentry>
+
+   <varlistentry>
+    <term>
+     <function>ssl_client_get_notafter() returns text</function>
+     <indexterm>
+      <primary>ssl_client_get_notafter</primary>
+     </indexterm>
+    </term>
+    <listitem>
+    <para>
+     Return the <structfield>not after</structfield> UTC timestamp of the client 
+     certificate.
+    </para>
+    </listitem>
+   </varlistentry>
   </variablelist>
  </sect2>
 


  [application/octet-stream] v3-0002-pg-stat-ssl-add-notbefore-and-notafter-timestamps.patch (15.3K, ../[email protected]/3-v3-0002-pg-stat-ssl-add-notbefore-and-notafter-timestamps.patch)
  download | inline diff:
diff --git a/src/backend/catalog/system_views.sql b/src/backend/catalog/system_views.sql
index c18fea8362..104420c2df 100644
--- a/src/backend/catalog/system_views.sql
+++ b/src/backend/catalog/system_views.sql
@@ -970,7 +970,9 @@ CREATE VIEW pg_stat_ssl AS
             S.sslbits AS bits,
             S.ssl_client_dn AS client_dn,
             S.ssl_client_serial AS client_serial,
-            S.ssl_issuer_dn AS issuer_dn
+            S.ssl_issuer_dn AS issuer_dn,
+            S.ssl_not_before AS not_before,
+            S.ssl_not_after AS not_after
     FROM pg_stat_get_activity(NULL) AS S
     WHERE S.client_port IS NOT NULL;
 
diff --git a/src/backend/libpq/be-secure-openssl.c b/src/backend/libpq/be-secure-openssl.c
index 05276ab95c..bbfe539c49 100644
--- a/src/backend/libpq/be-secure-openssl.c
+++ b/src/backend/libpq/be-secure-openssl.c
@@ -72,6 +72,7 @@ static bool initialize_ecdh(SSL_CTX *context, bool isServerStart);
 static const char *SSLerrmessage(unsigned long ecode);
 
 static char *X509_NAME_to_cstring(X509_NAME *name);
+static char *ASN1_TIME_to_cstring(ASN1_TIME *time);
 
 static SSL_CTX *SSL_context = NULL;
 static bool SSL_initialized = false;
@@ -1408,6 +1409,24 @@ be_tls_get_peer_issuer_name(Port *port, char *ptr, size_t len)
 		ptr[0] = '\0';
 }
 
+void
+be_tls_get_peer_not_before(Port *port, char *ptr, size_t len)
+{
+	if (port->peer)
+		strlcpy(ptr, ASN1_TIME_to_cstring(X509_getm_notBefore(port->peer)), len);
+	else
+		ptr[0] = '\0';
+}
+
+void
+be_tls_get_peer_not_after(Port *port, char *ptr, size_t len)
+{
+	if (port->peer)
+		strlcpy(ptr, ASN1_TIME_to_cstring(X509_getm_notAfter(port->peer)), len);
+	else
+		ptr[0] = '\0';
+}
+
 void
 be_tls_get_peer_serial(Port *port, char *ptr, size_t len)
 {
@@ -1553,6 +1572,27 @@ X509_NAME_to_cstring(X509_NAME *name)
 	return result;
 }
 
+/*
+ * Convert an ASN1_TIME to a cstring in format of YYYY-MM-DDThh:mm:ssZ.
+ */
+static char *
+ASN1_TIME_to_cstring(ASN1_TIME * time)
+{
+	struct tm 	tm_time;
+	char		str_time[NAMEDATALEN];
+	char	   	*result;
+
+	ASN1_TIME_to_tm(time, &tm_time);
+
+	memset(str_time, 0, sizeof(str_time));
+	snprintf(str_time, sizeof(str_time), "%04d-%02d-%02dT%02d:%02d:%02dZ",
+			tm_time.tm_year+1900, tm_time.tm_mon+1, tm_time.tm_mday,
+			tm_time.tm_hour, tm_time.tm_min, tm_time.tm_sec);
+
+	result = pstrdup(str_time);
+	return result;
+}
+
 /*
  * Convert TLS protocol version GUC enum to OpenSSL values
  *
diff --git a/src/backend/utils/activity/backend_status.c b/src/backend/utils/activity/backend_status.c
index 38f91a495b..a9e6f21501 100644
--- a/src/backend/utils/activity/backend_status.c
+++ b/src/backend/utils/activity/backend_status.c
@@ -367,6 +367,8 @@ pgstat_bestart(void)
 		be_tls_get_peer_subject_name(MyProcPort, lsslstatus.ssl_client_dn, NAMEDATALEN);
 		be_tls_get_peer_serial(MyProcPort, lsslstatus.ssl_client_serial, NAMEDATALEN);
 		be_tls_get_peer_issuer_name(MyProcPort, lsslstatus.ssl_issuer_dn, NAMEDATALEN);
+		be_tls_get_peer_not_before(MyProcPort, lsslstatus.ssl_not_before, NAMEDATALEN);
+		be_tls_get_peer_not_after(MyProcPort, lsslstatus.ssl_not_after, NAMEDATALEN);
 	}
 	else
 	{
diff --git a/src/backend/utils/adt/pgstatfuncs.c b/src/backend/utils/adt/pgstatfuncs.c
index 2a4c8ef87f..ff10d63cbd 100644
--- a/src/backend/utils/adt/pgstatfuncs.c
+++ b/src/backend/utils/adt/pgstatfuncs.c
@@ -303,7 +303,7 @@ pg_stat_get_progress_info(PG_FUNCTION_ARGS)
 Datum
 pg_stat_get_activity(PG_FUNCTION_ARGS)
 {
-#define PG_STAT_GET_ACTIVITY_COLS	31
+#define PG_STAT_GET_ACTIVITY_COLS	33
 	int			num_backends = pgstat_fetch_stat_numbackends();
 	int			curr_backend;
 	int			pid = PG_ARGISNULL(0) ? -1 : PG_GETARG_INT32(0);
@@ -587,35 +587,45 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 					values[24] = CStringGetTextDatum(beentry->st_sslstatus->ssl_issuer_dn);
 				else
 					nulls[24] = true;
+
+				if (beentry->st_sslstatus->ssl_not_before[0])
+					values[25] = CStringGetTextDatum(beentry->st_sslstatus->ssl_not_before);
+				else
+					nulls[25] = true;
+
+				if (beentry->st_sslstatus->ssl_not_after[0])
+					values[26] = CStringGetTextDatum(beentry->st_sslstatus->ssl_not_after);
+				else
+					nulls[26] = true;
 			}
 			else
 			{
 				values[18] = BoolGetDatum(false);	/* ssl */
-				nulls[19] = nulls[20] = nulls[21] = nulls[22] = nulls[23] = nulls[24] = true;
+				nulls[19] = nulls[20] = nulls[21] = nulls[22] = nulls[23] = nulls[24] = nulls[25] = nulls[26] = true;
 			}
 
 			/* GSSAPI information */
 			if (beentry->st_gss)
 			{
-				values[25] = BoolGetDatum(beentry->st_gssstatus->gss_auth); /* gss_auth */
-				values[26] = CStringGetTextDatum(beentry->st_gssstatus->gss_princ);
-				values[27] = BoolGetDatum(beentry->st_gssstatus->gss_enc);	/* GSS Encryption in use */
-				values[28] = BoolGetDatum(beentry->st_gssstatus->gss_delegation);	/* GSS credentials
+				values[27] = BoolGetDatum(beentry->st_gssstatus->gss_auth); /* gss_auth */
+				values[28] = CStringGetTextDatum(beentry->st_gssstatus->gss_princ);
+				values[29] = BoolGetDatum(beentry->st_gssstatus->gss_enc);	/* GSS Encryption in use */
+				values[30] = BoolGetDatum(beentry->st_gssstatus->gss_delegation);	/* GSS credentials
 																					 * delegated */
 			}
 			else
 			{
-				values[25] = BoolGetDatum(false);	/* gss_auth */
-				nulls[26] = true;	/* No GSS principal */
-				values[27] = BoolGetDatum(false);	/* GSS Encryption not in
+				values[27] = BoolGetDatum(false);	/* gss_auth */
+				nulls[28] = true;	/* No GSS principal */
+				values[29] = BoolGetDatum(false);	/* GSS Encryption not in
 													 * use */
-				values[28] = BoolGetDatum(false);	/* GSS credentials not
+				values[30] = BoolGetDatum(false);	/* GSS credentials not
 													 * delegated */
 			}
 			if (beentry->st_query_id == 0)
-				nulls[30] = true;
+				nulls[32] = true;
 			else
-				values[30] = UInt64GetDatum(beentry->st_query_id);
+				values[32] = UInt64GetDatum(beentry->st_query_id);
 		}
 		else
 		{
@@ -645,6 +655,8 @@ pg_stat_get_activity(PG_FUNCTION_ARGS)
 			nulls[28] = true;
 			nulls[29] = true;
 			nulls[30] = true;
+			nulls[31] = true;
+			nulls[32] = true;
 		}
 
 		tuplestore_putvalues(rsinfo->setResult, rsinfo->setDesc, values, nulls);
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 6996073989..7e71d80a48 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -5413,9 +5413,9 @@
   proname => 'pg_stat_get_activity', prorows => '100', proisstrict => 'f',
   proretset => 't', provolatile => 's', proparallel => 'r',
   prorettype => 'record', proargtypes => 'int4',
-  proallargtypes => '{int4,oid,int4,oid,text,text,text,text,text,timestamptz,timestamptz,timestamptz,timestamptz,inet,text,int4,xid,xid,text,bool,text,text,int4,text,numeric,text,bool,text,bool,bool,int4,int8}',
-  proargmodes => '{i,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o}',
-  proargnames => '{pid,datid,pid,usesysid,application_name,state,query,wait_event_type,wait_event,xact_start,query_start,backend_start,state_change,client_addr,client_hostname,client_port,backend_xid,backend_xmin,backend_type,ssl,sslversion,sslcipher,sslbits,ssl_client_dn,ssl_client_serial,ssl_issuer_dn,gss_auth,gss_princ,gss_enc,gss_delegation,leader_pid,query_id}',
+  proallargtypes => '{int4,oid,int4,oid,text,text,text,text,text,timestamptz,timestamptz,timestamptz,timestamptz,inet,text,int4,xid,xid,text,bool,text,text,int4,text,numeric,text,text,text,bool,text,bool,bool,int4,int8}',
+  proargmodes => '{i,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o,o}',
+  proargnames => '{pid,datid,pid,usesysid,application_name,state,query,wait_event_type,wait_event,xact_start,query_start,backend_start,state_change,client_addr,client_hostname,client_port,backend_xid,backend_xmin,backend_type,ssl,sslversion,sslcipher,sslbits,ssl_client_dn,ssl_client_serial,ssl_issuer_dn,ssl_not_before,ssl_not_after,gss_auth,gss_princ,gss_enc,gss_delegation,leader_pid,query_id}',
   prosrc => 'pg_stat_get_activity' },
 { oid => '3318',
   descr => 'statistics: information about progress of backends running maintenance command',
diff --git a/src/include/libpq/libpq-be.h b/src/include/libpq/libpq-be.h
index 3b2ce9908f..3ec23b6feb 100644
--- a/src/include/libpq/libpq-be.h
+++ b/src/include/libpq/libpq-be.h
@@ -298,6 +298,8 @@ extern const char *be_tls_get_cipher(Port *port);
 extern void be_tls_get_peer_subject_name(Port *port, char *ptr, size_t len);
 extern void be_tls_get_peer_issuer_name(Port *port, char *ptr, size_t len);
 extern void be_tls_get_peer_serial(Port *port, char *ptr, size_t len);
+extern void be_tls_get_peer_not_before(Port *port, char *ptr, size_t len);
+extern void be_tls_get_peer_not_after(Port *port, char *ptr, size_t len);
 
 /*
  * Get the server certificate hash for SCRAM channel binding type
diff --git a/src/include/utils/backend_status.h b/src/include/utils/backend_status.h
index 77939a0aed..f9277454e4 100644
--- a/src/include/utils/backend_status.h
+++ b/src/include/utils/backend_status.h
@@ -61,6 +61,8 @@ typedef struct PgBackendSSLStatus
 	char		ssl_client_serial[NAMEDATALEN];
 
 	char		ssl_issuer_dn[NAMEDATALEN];
+	char		ssl_not_before[NAMEDATALEN];
+	char		ssl_not_after[NAMEDATALEN];
 } PgBackendSSLStatus;
 
 /*
diff --git a/src/test/regress/expected/rules.out b/src/test/regress/expected/rules.out
index 7fd81e6a7d..231c01113a 100644
--- a/src/test/regress/expected/rules.out
+++ b/src/test/regress/expected/rules.out
@@ -1760,7 +1760,7 @@ pg_stat_activity| SELECT s.datid,
     s.query_id,
     s.query,
     s.backend_type
-   FROM ((pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
+   FROM ((pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, ssl_not_before, ssl_not_after, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
      LEFT JOIN pg_database d ON ((s.datid = d.oid)))
      LEFT JOIN pg_authid u ON ((s.usesysid = u.oid)));
 pg_stat_all_indexes| SELECT c.oid AS relid,
@@ -1878,7 +1878,7 @@ pg_stat_gssapi| SELECT pid,
     gss_princ AS principal,
     gss_enc AS encrypted,
     gss_delegation AS credentials_delegated
-   FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
+   FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, ssl_not_before, ssl_not_after, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
   WHERE (client_port IS NOT NULL);
 pg_stat_io| SELECT backend_type,
     object,
@@ -2078,7 +2078,7 @@ pg_stat_replication| SELECT s.pid,
     w.sync_priority,
     w.sync_state,
     w.reply_time
-   FROM ((pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
+   FROM ((pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, ssl_not_before, ssl_not_after, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
      JOIN pg_stat_get_wal_senders() w(pid, state, sent_lsn, write_lsn, flush_lsn, replay_lsn, write_lag, flush_lag, replay_lag, sync_priority, sync_state, reply_time) ON ((s.pid = w.pid)))
      LEFT JOIN pg_authid u ON ((s.usesysid = u.oid)));
 pg_stat_replication_slots| SELECT s.slot_name,
@@ -2111,8 +2111,10 @@ pg_stat_ssl| SELECT pid,
     sslbits AS bits,
     ssl_client_dn AS client_dn,
     ssl_client_serial AS client_serial,
-    ssl_issuer_dn AS issuer_dn
-   FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
+    ssl_issuer_dn AS issuer_dn,
+    ssl_not_before AS not_before,
+    ssl_not_after AS not_after
+   FROM pg_stat_get_activity(NULL::integer) s(datid, pid, usesysid, application_name, state, query, wait_event_type, wait_event, xact_start, query_start, backend_start, state_change, client_addr, client_hostname, client_port, backend_xid, backend_xmin, backend_type, ssl, sslversion, sslcipher, sslbits, ssl_client_dn, ssl_client_serial, ssl_issuer_dn, ssl_not_before, ssl_not_after, gss_auth, gss_princ, gss_enc, gss_delegation, leader_pid, query_id)
   WHERE (client_port IS NOT NULL);
 pg_stat_subscription| SELECT su.oid AS subid,
     su.subname,
diff --git a/src/test/ssl/t/001_ssltests.pl b/src/test/ssl/t/001_ssltests.pl
index 76442de063..e9db6fd060 100644
--- a/src/test/ssl/t/001_ssltests.pl
+++ b/src/test/ssl/t/001_ssltests.pl
@@ -543,8 +543,8 @@ command_like(
 		"$common_connstr sslrootcert=invalid", '-c',
 		"SELECT * FROM pg_stat_ssl WHERE pid = pg_backend_pid()"
 	],
-	qr{^pid,ssl,version,cipher,bits,client_dn,client_serial,issuer_dn\r?\n
-				^\d+,t,TLSv[\d.]+,[\w-]+,\d+,_null_,_null_,_null_\r?$}mx,
+	qr{^pid,ssl,version,cipher,bits,client_dn,client_serial,issuer_dn,not_before,not_after\r?\n
+				^\d+,t,TLSv[\d.]+,[\w-]+,\d+,_null_,_null_,_null_,_null_,_null_\r?$}mx,
 	'pg_stat_ssl view without client certificate');
 
 # Test min/max SSL protocol versions.
@@ -745,8 +745,8 @@ command_like(
 		'-c',
 		"SELECT * FROM pg_stat_ssl WHERE pid = pg_backend_pid()"
 	],
-	qr{^pid,ssl,version,cipher,bits,client_dn,client_serial,issuer_dn\r?\n
-				^\d+,t,TLSv[\d.]+,[\w-]+,\d+,/?CN=ssltestuser,$serialno,/?\QCN=Test CA for PostgreSQL SSL regression test client certs\E\r?$}mx,
+	qr{^pid,ssl,version,cipher,bits,client_dn,client_serial,issuer_dn,not_before,not_after\r?\n
+				^\d+,t,TLSv[\d.]+,[\w-]+,\d+,/?CN=ssltestuser,$serialno,/?\QCN=Test CA for PostgreSQL SSL regression test client certs\E,2021-03-03T22:12:07Z,2048-07-19T22:12:07Z\r?$}mx,
 	'pg_stat_ssl with client certificate');
 
 # client key with wrong permissions


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