REGTESTS: ssl: update the filters test for TLSv1.3 and sigalgs

Signature algorithms allows us to select the right certificates when
using TLSv1.3. This patch update the ssl_crt-list_filters.vtc regtest to
do more precise testing with TLSv1.3 in addition to TLSv1.2.

This allow us to test correctly bug #2300.

It could be backported to 2.8 with the previous fix for certificate
selection.

reg-tests/ssl/ssl_crt-list_filters.vtc

@@ -1,14 +1,15 @@
 #REGTEST_TYPE=bug
-varnishtest "Test for the bug #810 and #818"
+varnishtest "Test for ECDSA/RSA selection and crt-list filters"
+feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.8)'"
 feature cmd "$HAPROXY_PROGRAM -cc 'feature(OPENSSL) && ssllib_name_startswith(OpenSSL) && openssl_version_atleast(1.1.1)'"
 # This test checks if the multiple certificate types works correctly with the
 # SNI, and that the negative filters are correctly excluded
-
+#
-#REQUIRE_VERSION=2.2
+# The selection is done with ciphers in TLSv1.2 and with the sigalgs in TLSv1.3
-#REQUIRE_OPTIONS=OPENSSL
+#
 feature ignore_unknown_macro
 
-server s1 -repeat 3 {
+server s1 -repeat 6 {
     rxreq
     txresp
 } -start
@@ -22,7 +23,7 @@ haproxy h1 -conf {
     defaults
         mode http
         option httplog
-	retries 0
+        retries 0
         log stderr local0 debug err
         option logasap
         timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
@@ -33,30 +34,89 @@ haproxy h1 -conf {
     listen clear-lst
         bind "fd@${clearlst}"
         balance roundrobin
+
+        http-response add-header x-ssl-sha1    '%[ssl_s_sha1,hex]'
+        http-response add-header x-ssl-keyalg  '%[ssl_s_key_alg]'
+
+## TLSv1.2
+
         server s1 "${tmpdir}/ssl.sock" ssl verify none sni str(another-record.bug810.domain.tld) ssl-min-ver TLSv1.2 ssl-max-ver TLSv1.2 ciphers "kRSA"
         server s2 "${tmpdir}/ssl.sock" ssl verify none sni str(another-record.bug810.domain.tld) ssl-min-ver TLSv1.2 ssl-max-ver TLSv1.2 ciphers "aECDSA"
+
         server s3 "${tmpdir}/ssl.sock" ssl verify none sni str(another-record.bug818.domain.tld) ssl-min-ver TLSv1.2 ssl-max-ver TLSv1.2 ciphers "kRSA"
 
+## TLSv1.3
+
+        server s4 "${tmpdir}/ssl2.sock" ssl verify none sni str(another-record.bug810.domain.tld) ssl-min-ver TLSv1.3 sigalgs rsa_pss_rsae_sha384:rsa_pkcs1_sha256:ecdsa_secp384r1_sha384
+        server s5 "${tmpdir}/ssl2.sock" ssl verify none sni str(another-record.bug810.domain.tld) ssl-min-ver TLSv1.3 sigalgs rsa_pss_rsae_sha384:rsa_pkcs1_sha256
+        server s6 "${tmpdir}/ssl2.sock" ssl verify none sni str(another-record.bug810.domain.tld) ssl-min-ver TLSv1.3 sigalgs ecdsa_secp384r1_sha384
+
+        server s7 "${tmpdir}/ssl2.sock" ssl verify none sni str(another-record.bug818.domain.tld) ssl-min-ver TLSv1.3 sigalgs rsa_pss_rsae_sha384:rsa_pkcs1_sha256
+
+
     listen ssl-lst
         mode http
-        bind "${tmpdir}/ssl.sock" ssl strict-sni ssl-min-ver TLSv1.2 ssl-max-ver TLSv1.2 ciphers "kRSA:aECDSA" crt-list ${testdir}/filters.crt-list
+        bind "${tmpdir}/ssl.sock"  ssl strict-sni ssl-min-ver TLSv1.2 ssl-max-ver TLSv1.2  crt-list ${testdir}/filters.crt-list
+        bind "${tmpdir}/ssl2.sock" ssl strict-sni ssl-min-ver TLSv1.3 ssl-max-ver TLSv1.3  crt-list ${testdir}/filters.crt-list
 
         server s1 ${s1_addr}:${s1_port}
 } -start
 
+## TLSv1.2
 
+# RSA + TLSv1.2 + another-record.bug810.domain.tld OK
 client c1 -connect ${h1_clearlst_sock} {
     txreq
     rxresp
     expect resp.status == 200
+    expect resp.http.x-ssl-keyalg == "rsaEncryption"
 } -run
 
+# ECDSA + TLSv1.2 + another-record.bug810.domain.tld OK
 client c1 -connect ${h1_clearlst_sock} {
     txreq
     rxresp
     expect resp.status == 200
+    expect resp.http.x-ssl-keyalg == "id-ecPublicKey"
 } -run
 
+# RSA + TLSv1.2 + another-record.bug818.domain.tld OK, domain not available in
+# RSA because of the '!another-record.bug818.domain.tld' in the configuration.
+client c1 -connect ${h1_clearlst_sock} {
+    txreq
+    rxresp
+    expect resp.status == 503
+} -run
+
+## TLSv1.3
+
+# ECDSA/RSA sigalgs + TLSv1.3 + another-record.bug810.domain.tld should return the ECDSA cert
+client c1 -connect ${h1_clearlst_sock} {
+    txreq
+    rxresp
+    expect resp.status == 200
+    expect resp.http.x-ssl-keyalg == "id-ecPublicKey"
+} -run
+
+# RSA sigalgs + TLSv1.3 + another-record.bug810.domain.tld should return the RSA cert
+client c1 -connect ${h1_clearlst_sock} {
+    txreq
+    rxresp
+    expect resp.status == 200
+    expect resp.http.x-ssl-keyalg == "rsaEncryption"
+} -run
+
+
+# ECDSA sigalgs + TLSv1.3 + another-record.bug810.domain.tld should return the ECDSA cert
+client c1 -connect ${h1_clearlst_sock} {
+    txreq
+    rxresp
+    expect resp.status == 200
+    expect resp.http.x-ssl-keyalg == "id-ecPublicKey"
+} -run
+
+# RSA sigalgs + TLSv1.3 + another-record.bug818.domain.tld must fail because
+# this domain is not available with RSA
 client c1 -connect ${h1_clearlst_sock} {
     txreq
     rxresp