haproxy/reg-tests/ssl/set_ssl_crlfile.vtc

#REGTEST_TYPE=devel

# This reg-test uses the "set ssl crl-file" command to update a CRL file over the CLI.
# It also tests the "abort ssl crl-file" and "show ssl crl-file" commands.
#
# The frontend's certificate is signed by set_cafile_interCA1.crt and is revoked in interCA1_crl.pem
# but not in interCA1_crl_empty.pem.
# The backend's certificate is signed by set_cafile_interCA2.crt and is revoked in interCA2_crl.pem
# but not in interCA2_crl_empty.pem.
#
# The test consists in replacing the two empty CRLs by their not empty equivalent thanks to CLI
# calls and to check that the certificates (frontend and backend) are indeed revoked after the
# update.
#
# It requires socat to upload the certificate
#
# If this test does not work anymore:
# - Check that you have socat

varnishtest "Test the 'set ssl crl-file' feature of the CLI"
feature cmd "$HAPROXY_PROGRAM -cc 'version_atleast(2.5-dev0)'"
feature cmd "$HAPROXY_PROGRAM -cc 'feature(OPENSSL) && !ssllib_name_startswith(wolfSSL)'"
feature cmd "command -v socat"
feature ignore_unknown_macro

server s1 -repeat 4 {
  rxreq
  txresp
} -start

haproxy h1 -conf {
    global
    .if feature(THREAD)
        thread-groups 1
    .endif

    .if !ssllib_name_startswith(AWS-LC)
        tune.ssl.default-dh-param 2048
    .endif
        tune.ssl.capture-buffer-size 1
        stats socket "${tmpdir}/h1/stats" level admin

    defaults
        mode http
        option httplog
	retries 0
        log stderr local0 debug err
        option logasap
        timeout connect "${HAPROXY_TEST_TIMEOUT-5s}"
        timeout client  "${HAPROXY_TEST_TIMEOUT-5s}"
        timeout server  "${HAPROXY_TEST_TIMEOUT-5s}"

    listen clear-lst
        bind "fd@${clearlst}"
        server s1 "${tmpdir}/ssl.sock" ssl crt ${testdir}/set_cafile_client.pem ca-file ${testdir}/set_cafile_interCA2.crt crl-file ${testdir}/interCA2_crl_empty.pem verify required no-sni-auto

    listen ssl-lst
        # crt: certificate of the server
        # ca-file: CA used for client authentication request
        # crl-file: revocation list for client auth
        bind "${tmpdir}/ssl.sock" ssl crt ${testdir}/set_cafile_server.pem ca-file ${testdir}/set_cafile_interCA1.crt ca-verify-file ${testdir}/set_cafile_rootCA.crt crl-file ${testdir}/interCA1_crl_empty.pem verify required crt-ignore-err all
        http-response add-header X-SSL-Client-Verify %[ssl_c_verify]
        server s1 ${s1_addr}:${s1_port}
} -start

# Test the "show ssl ca-file" command
haproxy h1 -cli {
    send "show ssl ca-file"
    expect ~ ".*${testdir}/set_cafile_interCA1.crt - 1 certificate.*"
    send "show ssl ca-file"
    expect ~ ".*${testdir}/set_cafile_interCA2.crt - 1 certificate.*"
}

# Add the rootCA certificate to set_cafile_interCA2.crt in order for the frontend to
# be able to validate the server's certificate
shell {
    printf "set ssl ca-file ${testdir}/set_cafile_interCA2.crt <<\n$(cat ${testdir}/set_cafile_interCA2.crt)\n$(cat ${testdir}/set_cafile_rootCA.crt)\n\n" | socat "${tmpdir}/h1/stats" -
    echo "commit ssl ca-file ${testdir}/set_cafile_interCA2.crt" | socat "${tmpdir}/h1/stats" -
}

haproxy h1 -cli {
    send "show ssl ca-file"
    expect ~ ".*${testdir}/set_cafile_interCA2.crt - 2 certificate.*"

    send "show ssl ca-file ${testdir}/set_cafile_interCA2.crt"
    expect ~ ".*Subject.*/CN=Root CA"
}

# This first connection should succeed
client c1 -connect ${h1_clearlst_sock} {
    txreq
    rxresp
    expect resp.status == 200
    expect resp.http.X-SSL-Client-Verify == 0
} -run

# Change the frontend's crl-file to one in which the server certificate is revoked
shell {
    printf "set ssl crl-file ${testdir}/interCA2_crl_empty.pem <<\n$(cat ${testdir}/interCA2_crl.pem)\n\n" | socat "${tmpdir}/h1/stats" -
}

# Check that the transaction is displayed in the output of "show ssl crl-list"
haproxy h1 -cli {
    send "show ssl crl-file"
    expect ~ "\\*${testdir}/interCA2_crl_empty.pem"

    send "show ssl crl-file \\*${testdir}/interCA2_crl_empty.pem"
    expect ~ "Revoked Certificates:"
    send "show ssl crl-file \\*${testdir}/interCA2_crl_empty.pem:1"
    expect ~ "Serial Number: 1008"
}

# This connection should still succeed since the transaction was not committed
client c1 -connect ${h1_clearlst_sock} {
    txreq
    rxresp
    expect resp.status == 200
    expect resp.http.X-SSL-Client-Verify == 0
} -run

haproxy h1 -cli {
    send "commit ssl crl-file ${testdir}/interCA2_crl_empty.pem"
    expect ~ "Committing ${testdir}/interCA2_crl_empty.pem"
}

# This connection should fail, the server's certificate is revoked in the newly updated CRL file
client c1 -connect ${h1_clearlst_sock} {
    txreq
    rxresp
    expect resp.status == 503
} -run

# Restore the frontend's CRL
shell {
    printf "set ssl crl-file ${testdir}/interCA2_crl_empty.pem <<\n$(cat ${testdir}/interCA2_crl_empty.pem)\n\n" | socat "${tmpdir}/h1/stats" -
    echo "commit ssl crl-file ${testdir}/interCA2_crl_empty.pem" | socat "${tmpdir}/h1/stats" -
}

# Change the backend's CRL file to one in which the frontend's certificate is revoked
shell {
    printf "set ssl crl-file ${testdir}/interCA1_crl_empty.pem <<\n$(cat ${testdir}/interCA1_crl.pem)\n\n" | socat "${tmpdir}/h1/stats" -
    echo "commit ssl crl-file ${testdir}/interCA1_crl_empty.pem" | socat "${tmpdir}/h1/stats" -
}

# This connection should fail, the client's certificate is revoked in the newly updated CRL file
client c1 -connect ${h1_clearlst_sock} {
    txreq
    rxresp
    expect resp.status == 200
    # Revoked certificate
    expect resp.http.X-SSL-Client-Verify == 23
} -run