REGTEST: make the HTTP rules test compatible with HTTP/2 as well

The HTTP rules test now runs an H1 and an H2 client. Since the H2 one
requires the "proto" directive on the bind line, a new file has been
created requiring version 1.9 and the previous one was marked as usable
below 1.9 so that it's skipped by default but still usable when testing
backports.
diff --git a/reg-tests/http-rules/h00000.vtc b/reg-tests/http-rules/h00000.vtc
index 252408f..25388f8 100644
--- a/reg-tests/http-rules/h00000.vtc
+++ b/reg-tests/http-rules/h00000.vtc
@@ -1,5 +1,6 @@
-varnishtest "Composite HTTP manipulation test"
+varnishtest "Composite HTTP manipulation test (H1 clear to H1 clear)"
 #REQUIRE_VERSION=1.6
+#REQUIRE_VERSION_BELOW=1.9
 
 # This config tests several http-request features and their interactions.
 # It extracts some samples, places them into variables, modifies some header
diff --git a/reg-tests/http-rules/h00001.vtc b/reg-tests/http-rules/h00001.vtc
new file mode 100644
index 0000000..80522a1
--- /dev/null
+++ b/reg-tests/http-rules/h00001.vtc
@@ -0,0 +1,217 @@
+varnishtest "Composite HTTP manipulation test (H1 and H2 clear to H1 clear)"
+#REQUIRE_VERSION=1.9
+
+# This config tests several http-request features and their interactions.
+# It extracts some samples, places them into variables, modifies some header
+# fields, appends multiple identical header fields, overwrites the start line
+# using several methods, then dumps the initial list of variables and the final
+# one, then applies CRC32 to these values as signatures that are easy to test.
+# Then it does it again in the backend after saving the current headers into
+# the same names prefixed by "fe-". Then it does the same on the response path.
+# If some modifications are performed, the crc values need to be adjusted based
+# on the failed logs.
+#
+# Run it with HAPROXY_PROGRAM=$PWD/haproxy varnishtest -l -k -t 1 "$1"
+
+feature ignore_unknown_macro
+
+server s1 {
+	rxreq
+	txresp \
+	  -status 234 \
+	  -hdr "hdr1: val1" \
+	  -hdr "hdr2:  val2a" \
+	  -hdr "hdr2:    val2b" \
+	  -hdr "hdr3:      val3a, val3b" \
+	  -hdr "hdr4:" \
+	  -bodylen 14 \
+	  -body "This is a body"
+
+	expect req.method == "GET"
+	expect req.http.fe-sl1-crc == 992395575
+	expect req.http.fe-sl2-crc == 1270056220
+	expect req.http.fe-hdr-crc == 1719311923
+	expect req.http.be-sl1-crc == 2604236007
+	expect req.http.be-sl2-crc == 4181358964
+	expect req.http.be-hdr-crc == 3634102538
+} -repeat 2 -start
+
+haproxy h1 -conf {
+    defaults
+	mode http
+	timeout connect 1s
+	timeout client  1s
+	timeout server  1s
+
+    frontend fe
+	bind "fd@${feh1}"
+	bind "fd@${feh2}" proto h2
+
+	#### requests
+	http-request set-var(req.method)     method
+	http-request set-var(req.uri)        url
+	http-request set-var(req.path)       path
+	http-request set-var(req.query)      query
+	http-request set-var(req.param)      url_param(qs_arg)
+
+	http-request set-header     sl1      "sl1: "
+
+	http-request set-method              "%[str(GET)]"
+	http-request set-uri                 concat(/bu/,req.uri,/eu)
+	http-request set-path                "/bp/%[var(req.path)]/ep"
+	http-request set-query               "bq&%[var(req.query)]&eq"
+
+	http-request set-header     sl2      "sl2: "
+
+	http-request set-header     sl1      "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
+	http-request set-header     sl1      "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
+	http-request set-header     sl2      "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
+	http-request set-header     sl2      "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
+
+	http-request set-header     sl1-crc  "%[req.fhdr(sl1),crc32]"
+	http-request set-header     sl2-crc  "%[req.fhdr(sl2),crc32]"
+	http-request set-header     hdr-crc  "%[req.fhdr(hdr),crc32]"
+
+	#### responses
+	http-response set-header    be-sl1   "%[res.fhdr(sl1)]"
+	http-response set-header    be-sl2   "%[res.fhdr(sl2)]"
+	http-response set-header    be-hdr   "%[res.fhdr(hdr)]"
+
+	http-response set-header  be-sl1-crc "%[res.fhdr(sl1-crc)]"
+	http-response set-header  be-sl2-crc "%[res.fhdr(sl2-crc)]"
+	http-response set-header  be-hdr-crc "%[res.fhdr(hdr-crc)]"
+
+	http-response set-var(res.status)    status
+	http-response set-header    sl1      "sl1: "
+
+	http-response set-status    200
+
+	http-response set-header    sl2      "sl2: "
+
+	http-response set-header    sl1      "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
+	http-response set-header    sl2      "%[res.fhdr(sl2)] status=<%[status]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
+	http-response set-header    hdr      "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
+
+	http-response set-header  fe-sl1-crc "%[res.fhdr(sl1),crc32]"
+	http-response set-header  fe-sl2-crc "%[res.fhdr(sl2),crc32]"
+	http-response set-header  fe-hdr-crc "%[res.fhdr(hdr),crc32]"
+
+	default_backend be
+
+    backend be
+	#### requests
+	http-request set-header     fe-sl1   "%[req.fhdr(sl1)]"
+	http-request set-header     fe-sl2   "%[req.fhdr(sl2)]"
+	http-request set-header     fe-hdr   "%[req.fhdr(hdr)]"
+
+	http-request set-header   fe-sl1-crc "%[req.fhdr(sl1-crc)]"
+	http-request set-header   fe-sl2-crc "%[req.fhdr(sl2-crc)]"
+	http-request set-header   fe-hdr-crc "%[req.fhdr(hdr-crc)]"
+
+	http-request set-var(req.method)     method
+	http-request set-var(req.uri)        url
+	http-request set-var(req.path)       path
+	http-request set-var(req.query)      query
+	http-request set-var(req.param)      url_param(qs_arg)
+
+	http-request set-header     sl1      "sl1: "
+
+	http-request set-method              "%[str(GET)]"
+	http-request set-uri                 concat(/bu/,req.uri,/eu)
+	http-request set-path                "/bp/%[var(req.path)]/ep"
+	http-request set-query               "bq&%[var(req.query)]&eq"
+
+	http-request set-header     sl2      "sl2: "
+
+	http-request set-header     sl1      "%[req.fhdr(sl1)] method=<%[var(req.method)]>; uri=<%[var(req.uri)]>; path=<%[var(req.path)]>;"
+	http-request set-header     sl1      "%[req.fhdr(sl1)] query=<%[var(req.query)]>; param=<%[var(req.param)]>"
+	http-request set-header     sl2      "%[req.fhdr(sl2)] method=<%[method]>; uri=<%[url]>; path=<%[path]>; "
+	http-request set-header     sl2      "%[req.fhdr(sl2)] query=<%[query]>; param=<%[url_param(qs_arg)]>"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr1=<%[req.hdr(hdr1)]>; fhdr1=<%[req.fhdr(hdr1)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr2=<%[req.hdr(hdr2)]>; fhdr2=<%[req.fhdr(hdr2)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr3=<%[req.hdr(hdr3)]>; fhdr3=<%[req.fhdr(hdr3)]>;"
+	http-request set-header     hdr      "%[req.fhdr(hdr)] hdr4=<%[req.hdr(hdr4)]>; fhdr4=<%[req.fhdr(hdr4)]>;"
+
+	http-request set-header   be-sl1-crc "%[req.fhdr(sl1),crc32]"
+	http-request set-header   be-sl2-crc "%[req.fhdr(sl2),crc32]"
+	http-request set-header   be-hdr-crc "%[req.fhdr(hdr),crc32]"
+
+	#### responses
+	http-response set-var(res.status)    status
+	http-response set-header     sl1     "sl1: "
+
+	http-response set-status     200
+
+	http-response set-header     sl2     "sl2: "
+
+	http-response set-header     sl1     "%[res.fhdr(sl1)] status=<%[var(res.status)]>;"
+	http-response set-header     sl2     "%[res.fhdr(sl2)] status=<%[status]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr1=<%[res.hdr(hdr1)]>; fhdr1=<%[res.fhdr(hdr1)]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr2=<%[res.hdr(hdr2)]>; fhdr2=<%[res.fhdr(hdr2)]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr3=<%[res.hdr(hdr3)]>; fhdr3=<%[res.fhdr(hdr3)]>;"
+	http-response set-header     hdr     "%[res.fhdr(hdr)] hdr4=<%[res.hdr(hdr4)]>; fhdr4=<%[res.fhdr(hdr4)]>;"
+
+	http-response set-header     sl1-crc "%[res.fhdr(sl1),crc32]"
+	http-response set-header     sl2-crc "%[res.fhdr(sl2),crc32]"
+	http-response set-header     hdr-crc "%[res.fhdr(hdr),crc32]"
+
+	server s1 ${s1_addr}:${s1_port}
+} -start
+
+client c1h1 -connect ${h1_feh1_sock} {
+	txreq \
+	  -req GET \
+	  -url /path/to/file.extension?qs_arg=qs_value \
+	  -hdr "hdr1: val1" \
+	  -hdr "hdr2:  val2a" \
+	  -hdr "hdr2:    val2b" \
+	  -hdr "hdr3:      val3a, val3b" \
+	  -hdr "hdr4:"
+	rxresp
+
+	expect resp.status == 200
+	expect resp.http.be-sl1-crc == 487202719
+	expect resp.http.be-sl2-crc == 561949791
+	expect resp.http.be-hdr-crc == 1719311923
+	expect resp.http.fe-sl1-crc == 146151597
+	expect resp.http.fe-sl2-crc == 561949791
+	expect resp.http.fe-hdr-crc == 3634102538
+	expect resp.bodylen == 14
+	expect resp.body == "This is a body"
+} -run
+
+client c1h2 -connect ${h1_feh2_sock} {
+	stream 1 {
+		# warning: -req, -scheme, -url MUST be placed first otherwise
+		# the H2 protocol is invalid since they are pseudo-headers
+		txreq \
+		  -req GET \
+		  -scheme "https" \
+		  -url /path/to/file.extension?qs_arg=qs_value \
+		  -hdr "hdr1" "val1" \
+		  -hdr "hdr2" " val2a" \
+		  -hdr "hdr2" "   val2b" \
+		  -hdr "hdr3" "     val3a, val3b" \
+		  -hdr "hdr4" ""
+
+		rxhdrs
+		expect resp.status == 200
+		expect resp.http.be-sl1-crc == 487202719
+		expect resp.http.be-sl2-crc == 561949791
+		expect resp.http.be-hdr-crc == 1719311923
+		expect resp.http.fe-sl1-crc == 146151597
+		expect resp.http.fe-sl2-crc == 561949791
+		expect resp.http.fe-hdr-crc == 3634102538
+		expect resp.http.content-length == 14
+
+		rxdata -all
+		expect resp.body == "This is a body"
+	} -run
+} -run