tests/ssl-opt.sh

#!/bin/sh

# ssl-opt.sh
#
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Purpose
#
# Executes tests to prove various TLS/SSL options and extensions.
#
# The goal is not to cover every ciphersuite/version, but instead to cover
# specific options (max fragment length, truncated hmac, etc) or procedures
# (session resumption from cache or ticket, renego, etc).
#
# The tests assume a build with default options, with exceptions expressed
# with a dependency.  The tests focus on functionality and do not consider
# performance.
#

set -u

# Limit the size of each log to 10 GiB, in case of failures with this script
# where it may output seemingly unlimited length error logs.
ulimit -f 20971520

ORIGINAL_PWD=$PWD
if ! cd "$(dirname "$0")"; then
    exit 125
fi

# default values, can be overridden by the environment
: ${P_SRV:=../programs/ssl/ssl_server2}
: ${P_CLI:=../programs/ssl/ssl_client2}
: ${P_PXY:=../programs/test/udp_proxy}
: ${OPENSSL_CMD:=openssl} # OPENSSL would conflict with the build system
: ${GNUTLS_CLI:=gnutls-cli}
: ${GNUTLS_SERV:=gnutls-serv}
: ${PERL:=perl}

guess_config_name() {
    if git diff --quiet ../include/mbedtls/config.h 2>/dev/null; then
        echo "default"
    else
        echo "unknown"
    fi
}
: ${MBEDTLS_TEST_OUTCOME_FILE=}
: ${MBEDTLS_TEST_CONFIGURATION:="$(guess_config_name)"}
: ${MBEDTLS_TEST_PLATFORM:="$(uname -s | tr -c \\n0-9A-Za-z _)-$(uname -m | tr -c \\n0-9A-Za-z _)"}

O_SRV="$OPENSSL_CMD s_server -www -cert data_files/server5.crt -key data_files/server5.key"
O_CLI="echo 'GET / HTTP/1.0' | $OPENSSL_CMD s_client"
G_SRV="$GNUTLS_SERV --x509certfile data_files/server5.crt --x509keyfile data_files/server5.key"
G_CLI="echo 'GET / HTTP/1.0' | $GNUTLS_CLI --x509cafile data_files/test-ca_cat12.crt"
TCP_CLIENT="$PERL scripts/tcp_client.pl"

# alternative versions of OpenSSL and GnuTLS (no default path)

if [ -n "${OPENSSL_LEGACY:-}" ]; then
    O_LEGACY_SRV="$OPENSSL_LEGACY s_server -www -cert data_files/server5.crt -key data_files/server5.key"
    O_LEGACY_CLI="echo 'GET / HTTP/1.0' | $OPENSSL_LEGACY s_client"
else
    O_LEGACY_SRV=false
    O_LEGACY_CLI=false
fi

if [ -n "${GNUTLS_NEXT_SERV:-}" ]; then
    G_NEXT_SRV="$GNUTLS_NEXT_SERV --x509certfile data_files/server5.crt --x509keyfile data_files/server5.key"
else
    G_NEXT_SRV=false
fi

if [ -n "${GNUTLS_NEXT_CLI:-}" ]; then
    G_NEXT_CLI="echo 'GET / HTTP/1.0' | $GNUTLS_NEXT_CLI --x509cafile data_files/test-ca_cat12.crt"
else
    G_NEXT_CLI=false
fi

TESTS=0
FAILS=0
SKIPS=0

CONFIG_H='../include/mbedtls/config.h'

MEMCHECK=0
FILTER='.*'
EXCLUDE='^$'

SHOW_TEST_NUMBER=0
RUN_TEST_NUMBER=''

PRESERVE_LOGS=0

# Pick a "unique" server port in the range 10000-19999, and a proxy
# port which is this plus 10000. Each port number may be independently
# overridden by a command line option.
SRV_PORT=$(($$ % 10000 + 10000))
PXY_PORT=$((SRV_PORT + 10000))

print_usage() {
    echo "Usage: $0 [options]"
    printf "  -h|--help\tPrint this help.\n"
    printf "  -m|--memcheck\tCheck memory leaks and errors.\n"
    printf "  -f|--filter\tOnly matching tests are executed (substring or BRE)\n"
    printf "  -e|--exclude\tMatching tests are excluded (substring or BRE)\n"
    printf "  -n|--number\tExecute only numbered test (comma-separated, e.g. '245,256')\n"
    printf "  -s|--show-numbers\tShow test numbers in front of test names\n"
    printf "  -p|--preserve-logs\tPreserve logs of successful tests as well\n"
    printf "     --outcome-file\tFile where test outcomes are written\n"
    printf "                \t(default: \$MBEDTLS_TEST_OUTCOME_FILE, none if empty)\n"
    printf "     --port     \tTCP/UDP port (default: randomish 1xxxx)\n"
    printf "     --proxy-port\tTCP/UDP proxy port (default: randomish 2xxxx)\n"
    printf "     --seed     \tInteger seed value to use for this test run\n"
}

get_options() {
    while [ $# -gt 0 ]; do
        case "$1" in
            -f|--filter)
                shift; FILTER=$1
                ;;
            -e|--exclude)
                shift; EXCLUDE=$1
                ;;
            -m|--memcheck)
                MEMCHECK=1
                ;;
            -n|--number)
                shift; RUN_TEST_NUMBER=$1
                ;;
            -s|--show-numbers)
                SHOW_TEST_NUMBER=1
                ;;
            -p|--preserve-logs)
                PRESERVE_LOGS=1
                ;;
            --port)
                shift; SRV_PORT=$1
                ;;
            --proxy-port)
                shift; PXY_PORT=$1
                ;;
            --seed)
                shift; SEED="$1"
                ;;
            -h|--help)
                print_usage
                exit 0
                ;;
            *)
                echo "Unknown argument: '$1'"
                print_usage
                exit 1
                ;;
        esac
        shift
    done
}

# Make the outcome file path relative to the original directory, not
# to .../tests
case "$MBEDTLS_TEST_OUTCOME_FILE" in
    [!/]*)
        MBEDTLS_TEST_OUTCOME_FILE="$ORIGINAL_PWD/$MBEDTLS_TEST_OUTCOME_FILE"
        ;;
esac

# Read boolean configuration options from config.h for easy and quick
# testing. Skip non-boolean options (with something other than spaces
# and a comment after "#define SYMBOL"). The variable contains a
# space-separated list of symbols.
CONFIGS_ENABLED=" $(<"$CONFIG_H" \
                    sed -n 's!^ *#define  *\([A-Za-z][0-9A-Z_a-z]*\) *\(/*\)*!\1!p' |
                    tr '\n' ' ')"

# Skip next test; use this macro to skip tests which are legitimate
# in theory and expected to be re-introduced at some point, but
# aren't expected to succeed at the moment due to problems outside
# our control (such as bugs in other TLS implementations).
skip_next_test() {
    SKIP_NEXT="YES"
}

# skip next test if the flag is not enabled in config.h
requires_config_enabled() {
    case $CONFIGS_ENABLED in
        *" $1 "*) :;;
        *) SKIP_NEXT="YES";;
    esac
}

# skip next test if the flag is enabled in config.h
requires_config_disabled() {
    case $CONFIGS_ENABLED in
        *" $1 "*) SKIP_NEXT="YES";;
    esac
}

get_config_value_or_default() {
    # This function uses the query_config command line option to query the
    # required Mbed TLS compile time configuration from the ssl_server2
    # program. The command will always return a success value if the
    # configuration is defined and the value will be printed to stdout.
    #
    # Note that if the configuration is not defined or is defined to nothing,
    # the output of this function will be an empty string.
    ${P_SRV} "query_config=${1}"
}

requires_config_value_at_least() {
    VAL="$( get_config_value_or_default "$1" )"
    if [ -z "$VAL" ]; then
        # Should never happen
        echo "Mbed TLS configuration $1 is not defined"
        exit 1
    elif [ "$VAL" -lt "$2" ]; then
       SKIP_NEXT="YES"
    fi
}

requires_config_value_at_most() {
    VAL=$( get_config_value_or_default "$1" )
    if [ -z "$VAL" ]; then
        # Should never happen
        echo "Mbed TLS configuration $1 is not defined"
        exit 1
    elif [ "$VAL" -gt "$2" ]; then
       SKIP_NEXT="YES"
    fi
}

# Space-separated list of ciphersuites supported by this build of
# Mbed TLS.
P_CIPHERSUITES=" $($P_CLI --help 2>/dev/null |
                   grep TLS- |
                   tr -s ' \n' ' ')"
requires_ciphersuite_enabled() {
    case $P_CIPHERSUITES in
        *" $1 "*) :;;
        *) SKIP_NEXT="YES";;
    esac
}

# maybe_requires_ciphersuite_enabled CMD [RUN_TEST_OPTION...]
# If CMD (call to a TLS client or server program) requires a specific
# ciphersuite, arrange to only run the test case if this ciphersuite is
# enabled. As an exception, do run the test case if it expects a ciphersuite
# mismatch.
maybe_requires_ciphersuite_enabled() {
    case "$1" in
        *\ force_ciphersuite=*) :;;
        *) return;; # No specific required ciphersuite
    esac
    ciphersuite="${1##*\ force_ciphersuite=}"
    ciphersuite="${ciphersuite%%[!-0-9A-Z_a-z]*}"
    shift

    case "$*" in
        *"-s SSL - The server has no ciphersuites in common"*)
            # This test case expects a ciphersuite mismatch, so it doesn't
            # require the ciphersuite to be enabled.
            ;;
        *)
            requires_ciphersuite_enabled "$ciphersuite"
            ;;
    esac

    unset ciphersuite
}

# skip next test if OpenSSL doesn't support FALLBACK_SCSV
requires_openssl_with_fallback_scsv() {
    if [ -z "${OPENSSL_HAS_FBSCSV:-}" ]; then
        if $OPENSSL_CMD s_client -help 2>&1 | grep fallback_scsv >/dev/null
        then
            OPENSSL_HAS_FBSCSV="YES"
        else
            OPENSSL_HAS_FBSCSV="NO"
        fi
    fi
    if [ "$OPENSSL_HAS_FBSCSV" = "NO" ]; then
        SKIP_NEXT="YES"
    fi
}

# skip next test if GnuTLS isn't available
requires_gnutls() {
    if [ -z "${GNUTLS_AVAILABLE:-}" ]; then
        if ( which "$GNUTLS_CLI" && which "$GNUTLS_SERV" ) >/dev/null 2>&1; then
            GNUTLS_AVAILABLE="YES"
        else
            GNUTLS_AVAILABLE="NO"
        fi
    fi
    if [ "$GNUTLS_AVAILABLE" = "NO" ]; then
        SKIP_NEXT="YES"
    fi
}

# skip next test if GnuTLS-next isn't available
requires_gnutls_next() {
    if [ -z "${GNUTLS_NEXT_AVAILABLE:-}" ]; then
        if ( which "${GNUTLS_NEXT_CLI:-}" && which "${GNUTLS_NEXT_SERV:-}" ) >/dev/null 2>&1; then
            GNUTLS_NEXT_AVAILABLE="YES"
        else
            GNUTLS_NEXT_AVAILABLE="NO"
        fi
    fi
    if [ "$GNUTLS_NEXT_AVAILABLE" = "NO" ]; then
        SKIP_NEXT="YES"
    fi
}

# skip next test if OpenSSL-legacy isn't available
requires_openssl_legacy() {
    if [ -z "${OPENSSL_LEGACY_AVAILABLE:-}" ]; then
        if which "${OPENSSL_LEGACY:-}" >/dev/null 2>&1; then
            OPENSSL_LEGACY_AVAILABLE="YES"
        else
            OPENSSL_LEGACY_AVAILABLE="NO"
        fi
    fi
    if [ "$OPENSSL_LEGACY_AVAILABLE" = "NO" ]; then
        SKIP_NEXT="YES"
    fi
}

# skip next test if IPv6 isn't available on this host
requires_ipv6() {
    if [ -z "${HAS_IPV6:-}" ]; then
        $P_SRV server_addr='::1' > $SRV_OUT 2>&1 &
        SRV_PID=$!
        sleep 1
        kill $SRV_PID >/dev/null 2>&1
        if grep "NET - Binding of the socket failed" $SRV_OUT >/dev/null; then
            HAS_IPV6="NO"
        else
            HAS_IPV6="YES"
        fi
        rm -r $SRV_OUT
    fi

    if [ "$HAS_IPV6" = "NO" ]; then
        SKIP_NEXT="YES"
    fi
}

# skip next test if it's i686 or uname is not available
requires_not_i686() {
    if [ -z "${IS_I686:-}" ]; then
        IS_I686="YES"
        if which "uname" >/dev/null 2>&1; then
            if [ -z "$(uname -a | grep i686)" ]; then
                IS_I686="NO"
            fi
        fi
    fi
    if [ "$IS_I686" = "YES" ]; then
        SKIP_NEXT="YES"
    fi
}

# Calculate the input & output maximum content lengths set in the config
MAX_CONTENT_LEN=16384
MAX_IN_LEN=$( ../scripts/config.py get MBEDTLS_SSL_IN_CONTENT_LEN || echo "$MAX_CONTENT_LEN")
MAX_OUT_LEN=$( ../scripts/config.py get MBEDTLS_SSL_OUT_CONTENT_LEN || echo "$MAX_CONTENT_LEN")

if [ "$MAX_IN_LEN" -lt "$MAX_CONTENT_LEN" ]; then
    MAX_CONTENT_LEN="$MAX_IN_LEN"
fi
if [ "$MAX_OUT_LEN" -lt "$MAX_CONTENT_LEN" ]; then
    MAX_CONTENT_LEN="$MAX_OUT_LEN"
fi

# skip the next test if the SSL output buffer is less than 16KB
requires_full_size_output_buffer() {
    if [ "$MAX_OUT_LEN" -ne 16384 ]; then
        SKIP_NEXT="YES"
    fi
}

# skip the next test if valgrind is in use
not_with_valgrind() {
    if [ "$MEMCHECK" -gt 0 ]; then
        SKIP_NEXT="YES"
    fi
}

# skip the next test if valgrind is NOT in use
only_with_valgrind() {
    if [ "$MEMCHECK" -eq 0 ]; then
        SKIP_NEXT="YES"
    fi
}

# multiply the client timeout delay by the given factor for the next test
client_needs_more_time() {
    CLI_DELAY_FACTOR=$1
}

# wait for the given seconds after the client finished in the next test
server_needs_more_time() {
    SRV_DELAY_SECONDS=$1
}

# print_name <name>
print_name() {
    TESTS=$(( $TESTS + 1 ))
    LINE=""

    if [ "$SHOW_TEST_NUMBER" -gt 0 ]; then
        LINE="$TESTS "
    fi

    LINE="$LINE$1"
    printf "%s " "$LINE"
    LEN=$(( 72 - `echo "$LINE" | wc -c` ))
    for i in `seq 1 $LEN`; do printf '.'; done
    printf ' '

}

# record_outcome <outcome> [<failure-reason>]
# The test name must be in $NAME.
record_outcome() {
    echo "$1"
    if [ -n "$MBEDTLS_TEST_OUTCOME_FILE" ]; then
        printf '%s;%s;%s;%s;%s;%s\n' \
               "$MBEDTLS_TEST_PLATFORM" "$MBEDTLS_TEST_CONFIGURATION" \
               "ssl-opt" "$NAME" \
               "$1" "${2-}" \
               >>"$MBEDTLS_TEST_OUTCOME_FILE"
    fi
}

# fail <message>
fail() {
    record_outcome "FAIL" "$1"
    echo "  ! $1"

    mv $SRV_OUT o-srv-${TESTS}.log
    mv $CLI_OUT o-cli-${TESTS}.log
    if [ -n "$PXY_CMD" ]; then
        mv $PXY_OUT o-pxy-${TESTS}.log
    fi
    echo "  ! outputs saved to o-XXX-${TESTS}.log"

    if [ "${LOG_FAILURE_ON_STDOUT:-0}" != 0 ]; then
        echo "  ! server output:"
        cat o-srv-${TESTS}.log
        echo "  ! ========================================================"
        echo "  ! client output:"
        cat o-cli-${TESTS}.log
        if [ -n "$PXY_CMD" ]; then
            echo "  ! ========================================================"
            echo "  ! proxy output:"
            cat o-pxy-${TESTS}.log
        fi
        echo ""
    fi

    FAILS=$(( $FAILS + 1 ))
}

# is_polar <cmd_line>
is_polar() {
    case "$1" in
        *ssl_client2*) true;;
        *ssl_server2*) true;;
        *) false;;
    esac
}

# openssl s_server doesn't have -www with DTLS
check_osrv_dtls() {
    case "$SRV_CMD" in
        *s_server*-dtls*)
            NEEDS_INPUT=1
            SRV_CMD="$( echo $SRV_CMD | sed s/-www// )";;
        *) NEEDS_INPUT=0;;
    esac
}

# provide input to commands that need it
provide_input() {
    if [ $NEEDS_INPUT -eq 0 ]; then
        return
    fi

    while true; do
        echo "HTTP/1.0 200 OK"
        sleep 1
    done
}

# has_mem_err <log_file_name>
has_mem_err() {
    if ( grep -F 'All heap blocks were freed -- no leaks are possible' "$1" &&
         grep -F 'ERROR SUMMARY: 0 errors from 0 contexts' "$1" ) > /dev/null
    then
        return 1 # false: does not have errors
    else
        return 0 # true: has errors
    fi
}

# Wait for process $2 named $3 to be listening on port $1. Print error to $4.
if type lsof >/dev/null 2>/dev/null; then
    wait_app_start() {
        START_TIME=$(date +%s)
        if [ "$DTLS" -eq 1 ]; then
            proto=UDP
        else
            proto=TCP
        fi
        # Make a tight loop, server normally takes less than 1s to start.
        while ! lsof -a -n -b -i "$proto:$1" -p "$2" >/dev/null 2>/dev/null; do
              if [ $(( $(date +%s) - $START_TIME )) -gt $DOG_DELAY ]; then
                  echo "$3 START TIMEOUT"
                  echo "$3 START TIMEOUT" >> $4
                  break
              fi
              # Linux and *BSD support decimal arguments to sleep. On other
              # OSes this may be a tight loop.
              sleep 0.1 2>/dev/null || true
        done
    }
else
    echo "Warning: lsof not available, wait_app_start = sleep"
    wait_app_start() {
        sleep "$START_DELAY"
    }
fi

# Wait for server process $2 to be listening on port $1.
wait_server_start() {
    wait_app_start $1 $2 "SERVER" $SRV_OUT
}

# Wait for proxy process $2 to be listening on port $1.
wait_proxy_start() {
    wait_app_start $1 $2 "PROXY" $PXY_OUT
}

# Given the client or server debug output, parse the unix timestamp that is
# included in the first 4 bytes of the random bytes and check that it's within
# acceptable bounds
check_server_hello_time() {
    # Extract the time from the debug (lvl 3) output of the client
    SERVER_HELLO_TIME="$(sed -n 's/.*server hello, current time: //p' < "$1")"
    # Get the Unix timestamp for now
    CUR_TIME=$(date +'%s')
    THRESHOLD_IN_SECS=300

    # Check if the ServerHello time was printed
    if [ -z "$SERVER_HELLO_TIME" ]; then
        return 1
    fi

    # Check the time in ServerHello is within acceptable bounds
    if [ $SERVER_HELLO_TIME -lt $(( $CUR_TIME - $THRESHOLD_IN_SECS )) ]; then
        # The time in ServerHello is at least 5 minutes before now
        return 1
    elif [ $SERVER_HELLO_TIME -gt $(( $CUR_TIME + $THRESHOLD_IN_SECS )) ]; then
        # The time in ServerHello is at least 5 minutes later than now
        return 1
    else
        return 0
    fi
}

# Get handshake memory usage from server or client output and put it into the variable specified by the first argument
handshake_memory_get() {
    OUTPUT_VARIABLE="$1"
    OUTPUT_FILE="$2"

    # Get memory usage from a pattern like "Heap memory usage after handshake: 23112 bytes. Peak memory usage was 33112"
    MEM_USAGE=$(sed -n 's/.*Heap memory usage after handshake: //p' < "$OUTPUT_FILE" | grep -o "[0-9]*" | head -1)

    # Check if memory usage was read
    if [ -z "$MEM_USAGE" ]; then
        echo "Error: Can not read the value of handshake memory usage"
        return 1
    else
        eval "$OUTPUT_VARIABLE=$MEM_USAGE"
        return 0
    fi
}

# Get handshake memory usage from server or client output and check if this value
# is not higher than the maximum given by the first argument
handshake_memory_check() {
    MAX_MEMORY="$1"
    OUTPUT_FILE="$2"

    # Get memory usage
    if ! handshake_memory_get "MEMORY_USAGE" "$OUTPUT_FILE"; then
        return 1
    fi

    # Check if memory usage is below max value
    if [ "$MEMORY_USAGE" -gt "$MAX_MEMORY" ]; then
        echo "\nFailed: Handshake memory usage was $MEMORY_USAGE bytes," \
             "but should be below $MAX_MEMORY bytes"
        return 1
    else
        return 0
    fi
}

# wait for client to terminate and set CLI_EXIT
# must be called right after starting the client
wait_client_done() {
    CLI_PID=$!

    CLI_DELAY=$(( $DOG_DELAY * $CLI_DELAY_FACTOR ))
    CLI_DELAY_FACTOR=1

    ( sleep $CLI_DELAY; echo "===CLIENT_TIMEOUT===" >> $CLI_OUT; kill $CLI_PID ) &
    DOG_PID=$!

    wait $CLI_PID
    CLI_EXIT=$?

    kill $DOG_PID >/dev/null 2>&1
    wait $DOG_PID

    echo "EXIT: $CLI_EXIT" >> $CLI_OUT

    sleep $SRV_DELAY_SECONDS
    SRV_DELAY_SECONDS=0
}

# check if the given command uses dtls and sets global variable DTLS
detect_dtls() {
    case "$1" in
        *dtls=1*|-dtls|-u) DTLS=1;;
        *) DTLS=0;;
    esac
}

# check if the given command uses gnutls and sets global variable CMD_IS_GNUTLS
is_gnutls() {
    case "$1" in
    *gnutls-cli*)
        CMD_IS_GNUTLS=1
        ;;
    *gnutls-serv*)
        CMD_IS_GNUTLS=1
        ;;
    *)
        CMD_IS_GNUTLS=0
        ;;
    esac
}

# Compare file content
# Usage: find_in_both pattern file1 file2
# extract from file1 the first line matching the pattern
# check in file2 that the same line can be found
find_in_both() {
        srv_pattern=$(grep -m 1 "$1" "$2");
        if [ -z "$srv_pattern" ]; then
                return 1;
        fi

        if grep "$srv_pattern" $3 >/dev/null; then :
                return 0;
        else
                return 1;
        fi
}

# Usage: run_test name [-p proxy_cmd] srv_cmd cli_cmd cli_exit [option [...]]
# Options:  -s pattern  pattern that must be present in server output
#           -c pattern  pattern that must be present in client output
#           -u pattern  lines after pattern must be unique in client output
#           -f call shell function on client output
#           -S pattern  pattern that must be absent in server output
#           -C pattern  pattern that must be absent in client output
#           -U pattern  lines after pattern must be unique in server output
#           -F call shell function on server output
#           -g call shell function on server and client output
run_test() {
    NAME="$1"
    shift 1

    if is_excluded "$NAME"; then
        SKIP_NEXT="NO"
        # There was no request to run the test, so don't record its outcome.
        return
    fi

    print_name "$NAME"

    # Do we only run numbered tests?
    if [ -n "$RUN_TEST_NUMBER" ]; then
        case ",$RUN_TEST_NUMBER," in
            *",$TESTS,"*) :;;
            *) SKIP_NEXT="YES";;
        esac
    fi

    # does this test use a proxy?
    if [ "X$1" = "X-p" ]; then
        PXY_CMD="$2"
        shift 2
    else
        PXY_CMD=""
    fi

    # get commands and client output
    SRV_CMD="$1"
    CLI_CMD="$2"
    CLI_EXPECT="$3"
    shift 3

    # Check if test uses files
    case "$SRV_CMD $CLI_CMD" in
        *data_files/*)
            requires_config_enabled MBEDTLS_FS_IO;;
    esac

    # If the client or serve requires a ciphersuite, check that it's enabled.
    maybe_requires_ciphersuite_enabled "$SRV_CMD" "$@"
    maybe_requires_ciphersuite_enabled "$CLI_CMD" "$@"

    # should we skip?
    if [ "X$SKIP_NEXT" = "XYES" ]; then
        SKIP_NEXT="NO"
        record_outcome "SKIP"
        SKIPS=$(( $SKIPS + 1 ))
        return
    fi

    # update DTLS variable
    detect_dtls "$SRV_CMD"

    # if the test uses DTLS but no custom proxy, add a simple proxy
    # as it provides timing info that's useful to debug failures
    if [ -z "$PXY_CMD" ] && [ "$DTLS" -eq 1 ]; then
        PXY_CMD="$P_PXY"
        case " $SRV_CMD " in
            *' server_addr=::1 '*)
                PXY_CMD="$PXY_CMD server_addr=::1 listen_addr=::1";;
        esac
    fi

    # update CMD_IS_GNUTLS variable
    is_gnutls "$SRV_CMD"

    # if the server uses gnutls but doesn't set priority, explicitly
    # set the default priority
    if [ "$CMD_IS_GNUTLS" -eq 1 ]; then
        case "$SRV_CMD" in
              *--priority*) :;;
              *) SRV_CMD="$SRV_CMD --priority=NORMAL";;
        esac
    fi

    # update CMD_IS_GNUTLS variable
    is_gnutls "$CLI_CMD"

    # if the client uses gnutls but doesn't set priority, explicitly
    # set the default priority
    if [ "$CMD_IS_GNUTLS" -eq 1 ]; then
        case "$CLI_CMD" in
              *--priority*) :;;
              *) CLI_CMD="$CLI_CMD --priority=NORMAL";;
        esac
    fi

    # fix client port
    if [ -n "$PXY_CMD" ]; then
        CLI_CMD=$( echo "$CLI_CMD" | sed s/+SRV_PORT/$PXY_PORT/g )
    else
        CLI_CMD=$( echo "$CLI_CMD" | sed s/+SRV_PORT/$SRV_PORT/g )
    fi

    # prepend valgrind to our commands if active
    if [ "$MEMCHECK" -gt 0 ]; then
        if is_polar "$SRV_CMD"; then
            SRV_CMD="valgrind --leak-check=full $SRV_CMD"
        fi
        if is_polar "$CLI_CMD"; then
            CLI_CMD="valgrind --leak-check=full $CLI_CMD"
        fi
    fi

    TIMES_LEFT=2
    while [ $TIMES_LEFT -gt 0 ]; do
        TIMES_LEFT=$(( $TIMES_LEFT - 1 ))

        # run the commands
        if [ -n "$PXY_CMD" ]; then
            printf "# %s\n%s\n" "$NAME" "$PXY_CMD" > $PXY_OUT
            $PXY_CMD >> $PXY_OUT 2>&1 &
            PXY_PID=$!
            wait_proxy_start "$PXY_PORT" "$PXY_PID"
        fi

        check_osrv_dtls
        printf '# %s\n%s\n' "$NAME" "$SRV_CMD" > $SRV_OUT
        provide_input | $SRV_CMD >> $SRV_OUT 2>&1 &
        SRV_PID=$!
        wait_server_start "$SRV_PORT" "$SRV_PID"

        printf '# %s\n%s\n' "$NAME" "$CLI_CMD" > $CLI_OUT
        eval "$CLI_CMD" >> $CLI_OUT 2>&1 &
        wait_client_done

        sleep 0.05

        # terminate the server (and the proxy)
        kill $SRV_PID
        wait $SRV_PID
        SRV_RET=$?

        if [ -n "$PXY_CMD" ]; then
            kill $PXY_PID >/dev/null 2>&1
            wait $PXY_PID
        fi

        # retry only on timeouts
        if grep '===CLIENT_TIMEOUT===' $CLI_OUT >/dev/null; then
            printf "RETRY "
        else
            TIMES_LEFT=0
        fi
    done

    # check if the client and server went at least to the handshake stage
    # (useful to avoid tests with only negative assertions and non-zero
    # expected client exit to incorrectly succeed in case of catastrophic
    # failure)
    if is_polar "$SRV_CMD"; then
        if grep "Performing the SSL/TLS handshake" $SRV_OUT >/dev/null; then :;
        else
            fail "server or client failed to reach handshake stage"
            return
        fi
    fi
    if is_polar "$CLI_CMD"; then
        if grep "Performing the SSL/TLS handshake" $CLI_OUT >/dev/null; then :;
        else
            fail "server or client failed to reach handshake stage"
            return
        fi
    fi

    # Check server exit code (only for Mbed TLS: GnuTLS and OpenSSL don't
    # exit with status 0 when interrupted by a signal, and we don't really
    # care anyway), in case e.g. the server reports a memory leak.
    if [ $SRV_RET != 0 ] && is_polar "$SRV_CMD"; then
        fail "Server exited with status $SRV_RET"
        return
    fi

    # check client exit code
    if [ \( "$CLI_EXPECT" = 0 -a "$CLI_EXIT" != 0 \) -o \
         \( "$CLI_EXPECT" != 0 -a "$CLI_EXIT" = 0 \) ]
    then
        fail "bad client exit code (expected $CLI_EXPECT, got $CLI_EXIT)"
        return
    fi

    # check other assertions
    # lines beginning with == are added by valgrind, ignore them
    # lines with 'Serious error when reading debug info', are valgrind issues as well
    while [ $# -gt 0 ]
    do
        case $1 in
            "-s")
                if grep -v '^==' $SRV_OUT | grep -v 'Serious error when reading debug info' | grep "$2" >/dev/null; then :; else
                    fail "pattern '$2' MUST be present in the Server output"
                    return
                fi
                ;;

            "-c")
                if grep -v '^==' $CLI_OUT | grep -v 'Serious error when reading debug info' | grep "$2" >/dev/null; then :; else
                    fail "pattern '$2' MUST be present in the Client output"
                    return
                fi
                ;;

            "-S")
                if grep -v '^==' $SRV_OUT | grep -v 'Serious error when reading debug info' | grep "$2" >/dev/null; then
                    fail "pattern '$2' MUST NOT be present in the Server output"
                    return
                fi
                ;;

            "-C")
                if grep -v '^==' $CLI_OUT | grep -v 'Serious error when reading debug info' | grep "$2" >/dev/null; then
                    fail "pattern '$2' MUST NOT be present in the Client output"
                    return
                fi
                ;;

                # The filtering in the following two options (-u and -U) do the following
                #   - ignore valgrind output
                #   - filter out everything but lines right after the pattern occurrences
                #   - keep one of each non-unique line
                #   - count how many lines remain
                # A line with '--' will remain in the result from previous outputs, so the number of lines in the result will be 1
                # if there were no duplicates.
            "-U")
                if [ $(grep -v '^==' $SRV_OUT | grep -v 'Serious error when reading debug info' | grep -A1 "$2" | grep -v "$2" | sort | uniq -d | wc -l) -gt 1 ]; then
                    fail "lines following pattern '$2' must be unique in Server output"
                    return
                fi
                ;;

            "-u")
                if [ $(grep -v '^==' $CLI_OUT | grep -v 'Serious error when reading debug info' | grep -A1 "$2" | grep -v "$2" | sort | uniq -d | wc -l) -gt 1 ]; then
                    fail "lines following pattern '$2' must be unique in Client output"
                    return
                fi
                ;;
            "-F")
                if ! $2 "$SRV_OUT"; then
                    fail "function call to '$2' failed on Server output"
                    return
                fi
                ;;
            "-f")
                if ! $2 "$CLI_OUT"; then
                    fail "function call to '$2' failed on Client output"
                    return
                fi
                ;;
            "-g")
                if ! eval "$2 '$SRV_OUT' '$CLI_OUT'"; then
                    fail "function call to '$2' failed on Server and Client output"
                    return
                fi
                ;;

            *)
                echo "Unknown test: $1" >&2
                exit 1
        esac
        shift 2
    done

    # check valgrind's results
    if [ "$MEMCHECK" -gt 0 ]; then
        if is_polar "$SRV_CMD" && has_mem_err $SRV_OUT; then
            fail "Server has memory errors"
            return
        fi
        if is_polar "$CLI_CMD" && has_mem_err $CLI_OUT; then
            fail "Client has memory errors"
            return
        fi
    fi

    # if we're here, everything is ok
    record_outcome "PASS"
    if [ "$PRESERVE_LOGS" -gt 0 ]; then
        mv $SRV_OUT o-srv-${TESTS}.log
        mv $CLI_OUT o-cli-${TESTS}.log
        if [ -n "$PXY_CMD" ]; then
            mv $PXY_OUT o-pxy-${TESTS}.log
        fi
    fi

    rm -f $SRV_OUT $CLI_OUT $PXY_OUT
}

run_test_psa() {
    requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
    run_test    "PSA-supported ciphersuite: $1" \
                "$P_SRV debug_level=3 force_version=tls1_2" \
                "$P_CLI debug_level=3 force_version=tls1_2 force_ciphersuite=$1" \
                0 \
                -c "Successfully setup PSA-based decryption cipher context" \
                -c "Successfully setup PSA-based encryption cipher context" \
                -c "PSA calc verify" \
                -c "calc PSA finished" \
                -s "Successfully setup PSA-based decryption cipher context" \
                -s "Successfully setup PSA-based encryption cipher context" \
                -s "PSA calc verify" \
                -s "calc PSA finished" \
                -C "Failed to setup PSA-based cipher context"\
                -S "Failed to setup PSA-based cipher context"\
                -s "Protocol is TLSv1.2" \
                -c "Perform PSA-based ECDH computation."\
                -c "Perform PSA-based computation of digest of ServerKeyExchange" \
                -S "error" \
                -C "error"
}

run_test_psa_force_curve() {
    requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
    run_test    "PSA - ECDH with $1" \
                "$P_SRV debug_level=4 force_version=tls1_2" \
                "$P_CLI debug_level=4 force_version=tls1_2 force_ciphersuite=TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256 curves=$1" \
                0 \
                -c "Successfully setup PSA-based decryption cipher context" \
                -c "Successfully setup PSA-based encryption cipher context" \
                -c "PSA calc verify" \
                -c "calc PSA finished" \
                -s "Successfully setup PSA-based decryption cipher context" \
                -s "Successfully setup PSA-based encryption cipher context" \
                -s "PSA calc verify" \
                -s "calc PSA finished" \
                -C "Failed to setup PSA-based cipher context"\
                -S "Failed to setup PSA-based cipher context"\
                -s "Protocol is TLSv1.2" \
                -c "Perform PSA-based ECDH computation."\
                -c "Perform PSA-based computation of digest of ServerKeyExchange" \
                -S "error" \
                -C "error"
}

# Test that the server's memory usage after a handshake is reduced when a client specifies
# a maximum fragment length.
#  first argument ($1) is MFL for SSL client
#  second argument ($2) is memory usage for SSL client with default MFL (16k)
run_test_memory_after_hanshake_with_mfl()
{
    # The test passes if the difference is around 2*(16k-MFL)
    MEMORY_USAGE_LIMIT="$(( $2 - ( 2 * ( 16384 - $1 )) ))"

    # Leave some margin for robustness
    MEMORY_USAGE_LIMIT="$(( ( MEMORY_USAGE_LIMIT * 110 ) / 100 ))"

    run_test    "Handshake memory usage (MFL $1)" \
                "$P_SRV debug_level=3 auth_mode=required force_version=tls1_2" \
                "$P_CLI debug_level=3 force_version=tls1_2 \
                    crt_file=data_files/server5.crt key_file=data_files/server5.key \
                    force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM max_frag_len=$1" \
                0 \
                -F "handshake_memory_check $MEMORY_USAGE_LIMIT"
}


# Test that the server's memory usage after a handshake is reduced when a client specifies
# different values of Maximum Fragment Length: default (16k), 4k, 2k, 1k and 512 bytes
run_tests_memory_after_hanshake()
{
    # all tests in this sequence requires the same configuration (see requires_config_enabled())
    SKIP_THIS_TESTS="$SKIP_NEXT"

    # first test with default MFU is to get reference memory usage
    MEMORY_USAGE_MFL_16K=0
    run_test    "Handshake memory usage initial (MFL 16384 - default)" \
                "$P_SRV debug_level=3 auth_mode=required force_version=tls1_2" \
                "$P_CLI debug_level=3 force_version=tls1_2 \
                    crt_file=data_files/server5.crt key_file=data_files/server5.key \
                    force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM" \
                0 \
                -F "handshake_memory_get MEMORY_USAGE_MFL_16K"

    SKIP_NEXT="$SKIP_THIS_TESTS"
    run_test_memory_after_hanshake_with_mfl 4096 "$MEMORY_USAGE_MFL_16K"

    SKIP_NEXT="$SKIP_THIS_TESTS"
    run_test_memory_after_hanshake_with_mfl 2048 "$MEMORY_USAGE_MFL_16K"

    SKIP_NEXT="$SKIP_THIS_TESTS"
    run_test_memory_after_hanshake_with_mfl 1024 "$MEMORY_USAGE_MFL_16K"

    SKIP_NEXT="$SKIP_THIS_TESTS"
    run_test_memory_after_hanshake_with_mfl 512 "$MEMORY_USAGE_MFL_16K"
}

cleanup() {
    rm -f $CLI_OUT $SRV_OUT $PXY_OUT $SESSION
    rm -f context_srv.txt
    rm -f context_cli.txt
    test -n "${SRV_PID:-}" && kill $SRV_PID >/dev/null 2>&1
    test -n "${PXY_PID:-}" && kill $PXY_PID >/dev/null 2>&1
    test -n "${CLI_PID:-}" && kill $CLI_PID >/dev/null 2>&1
    test -n "${DOG_PID:-}" && kill $DOG_PID >/dev/null 2>&1
    exit 1
}

#
# MAIN
#

get_options "$@"

# Optimize filters: if $FILTER and $EXCLUDE can be expressed as shell
# patterns rather than regular expressions, use a case statement instead
# of calling grep. To keep the optimizer simple, it is incomplete and only
# detects simple cases: plain substring, everything, nothing.
#
# As an exception, the character '.' is treated as an ordinary character
# if it is the only special character in the string. This is because it's
# rare to need "any one character", but needing a literal '.' is common
# (e.g. '-f "DTLS 1.2"').
need_grep=
case "$FILTER" in
    '^$') simple_filter=;;
    '.*') simple_filter='*';;
    *[][$+*?\\^{\|}]*) # Regexp special characters (other than .), we need grep
        need_grep=1;;
    *) # No regexp or shell-pattern special character
        simple_filter="*$FILTER*";;
esac
case "$EXCLUDE" in
    '^$') simple_exclude=;;
    '.*') simple_exclude='*';;
    *[][$+*?\\^{\|}]*) # Regexp special characters (other than .), we need grep
        need_grep=1;;
    *) # No regexp or shell-pattern special character
        simple_exclude="*$EXCLUDE*";;
esac
if [ -n "$need_grep" ]; then
    is_excluded () {
        ! echo "$1" | grep "$FILTER" | grep -q -v "$EXCLUDE"
    }
else
    is_excluded () {
        case "$1" in
            $simple_exclude) true;;
            $simple_filter) false;;
            *) true;;
        esac
    }
fi

# sanity checks, avoid an avalanche of errors
P_SRV_BIN="${P_SRV%%[  ]*}"
P_CLI_BIN="${P_CLI%%[  ]*}"
P_PXY_BIN="${P_PXY%%[  ]*}"
if [ ! -x "$P_SRV_BIN" ]; then
    echo "Command '$P_SRV_BIN' is not an executable file"
    exit 1
fi
if [ ! -x "$P_CLI_BIN" ]; then
    echo "Command '$P_CLI_BIN' is not an executable file"
    exit 1
fi
if [ ! -x "$P_PXY_BIN" ]; then
    echo "Command '$P_PXY_BIN' is not an executable file"
    exit 1
fi
if [ "$MEMCHECK" -gt 0 ]; then
    if which valgrind >/dev/null 2>&1; then :; else
        echo "Memcheck not possible. Valgrind not found"
        exit 1
    fi
fi
if which $OPENSSL_CMD >/dev/null 2>&1; then :; else
    echo "Command '$OPENSSL_CMD' not found"
    exit 1
fi

# used by watchdog
MAIN_PID="$$"

# We use somewhat arbitrary delays for tests:
# - how long do we wait for the server to start (when lsof not available)?
# - how long do we allow for the client to finish?
#   (not to check performance, just to avoid waiting indefinitely)
# Things are slower with valgrind, so give extra time here.
#
# Note: without lsof, there is a trade-off between the running time of this
# script and the risk of spurious errors because we didn't wait long enough.
# The watchdog delay on the other hand doesn't affect normal running time of
# the script, only the case where a client or server gets stuck.
if [ "$MEMCHECK" -gt 0 ]; then
    START_DELAY=6
    DOG_DELAY=60
else
    START_DELAY=2
    DOG_DELAY=20
fi

# some particular tests need more time:
# - for the client, we multiply the usual watchdog limit by a factor
# - for the server, we sleep for a number of seconds after the client exits
# see client_need_more_time() and server_needs_more_time()
CLI_DELAY_FACTOR=1
SRV_DELAY_SECONDS=0

# fix commands to use this port, force IPv4 while at it
# +SRV_PORT will be replaced by either $SRV_PORT or $PXY_PORT later
P_SRV="$P_SRV server_addr=127.0.0.1 server_port=$SRV_PORT"
P_CLI="$P_CLI server_addr=127.0.0.1 server_port=+SRV_PORT"
P_PXY="$P_PXY server_addr=127.0.0.1 server_port=$SRV_PORT listen_addr=127.0.0.1 listen_port=$PXY_PORT ${SEED:+"seed=$SEED"}"
O_SRV="$O_SRV -accept $SRV_PORT -dhparam data_files/dhparams.pem"
O_CLI="$O_CLI -connect localhost:+SRV_PORT"
G_SRV="$G_SRV -p $SRV_PORT"
G_CLI="$G_CLI -p +SRV_PORT"

if [ -n "${OPENSSL_LEGACY:-}" ]; then
    O_LEGACY_SRV="$O_LEGACY_SRV -accept $SRV_PORT -dhparam data_files/dhparams.pem"
    O_LEGACY_CLI="$O_LEGACY_CLI -connect localhost:+SRV_PORT"
fi

if [ -n "${GNUTLS_NEXT_SERV:-}" ]; then
    G_NEXT_SRV="$G_NEXT_SRV -p $SRV_PORT"
fi

if [ -n "${GNUTLS_NEXT_CLI:-}" ]; then
    G_NEXT_CLI="$G_NEXT_CLI -p +SRV_PORT"
fi

# Allow SHA-1, because many of our test certificates use it
P_SRV="$P_SRV allow_sha1=1"
P_CLI="$P_CLI allow_sha1=1"

# Also pick a unique name for intermediate files
SRV_OUT="srv_out.$$"
CLI_OUT="cli_out.$$"
PXY_OUT="pxy_out.$$"
SESSION="session.$$"

SKIP_NEXT="NO"

trap cleanup INT TERM HUP

# Basic test

# Checks that:
# - things work with all ciphersuites active (used with config-full in all.sh)
# - the expected (highest security) parameters are selected
#   ("signature_algorithm ext: 6" means SHA-512 (highest common hash))
run_test    "Default" \
            "$P_SRV debug_level=3" \
            "$P_CLI" \
            0 \
            -s "Protocol is TLSv1.2" \
            -s "Ciphersuite is TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256" \
            -s "client hello v3, signature_algorithm ext: 6" \
            -s "ECDHE curve: secp521r1" \
            -S "error" \
            -C "error"

run_test    "Default, DTLS" \
            "$P_SRV dtls=1" \
            "$P_CLI dtls=1" \
            0 \
            -s "Protocol is DTLSv1.2" \
            -s "Ciphersuite is TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256"

run_test    "TLS client auth: required" \
            "$P_SRV auth_mode=required" \
            "$P_CLI" \
            0 \
            -s "Verifying peer X.509 certificate... ok"

requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test    "TLS: password protected client key" \
            "$P_SRV auth_mode=required" \
            "$P_CLI crt_file=data_files/server5.crt key_file=data_files/server5.key.enc key_pwd=PolarSSLTest" \
            0

requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test    "TLS: password protected server key" \
            "$P_SRV crt_file=data_files/server5.crt key_file=data_files/server5.key.enc key_pwd=PolarSSLTest" \
            "$P_CLI" \
            0

requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_RSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test    "TLS: password protected server key, two certificates" \
            "$P_SRV \
              key_file=data_files/server5.key.enc key_pwd=PolarSSLTest crt_file=data_files/server5.crt \
              key_file2=data_files/server2.key.enc key_pwd2=PolarSSLTest crt_file2=data_files/server2.crt" \
            "$P_CLI" \
            0

requires_config_enabled MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK
run_test    "CA callback on client" \
            "$P_SRV debug_level=3" \
            "$P_CLI ca_callback=1 debug_level=3 " \
            0 \
            -c "use CA callback for X.509 CRT verification" \
            -S "error" \
            -C "error"

requires_config_enabled MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK
requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test    "CA callback on server" \
            "$P_SRV auth_mode=required" \
            "$P_CLI ca_callback=1 debug_level=3 crt_file=data_files/server5.crt \
             key_file=data_files/server5.key" \
            0 \
            -c "use CA callback for X.509 CRT verification" \
            -s "Verifying peer X.509 certificate... ok" \
            -S "error" \
            -C "error"

# Test using an opaque private key for client authentication
requires_config_enabled MBEDTLS_USE_PSA_CRYPTO
requires_config_enabled MBEDTLS_X509_CRT_PARSE_C
requires_config_enabled MBEDTLS_ECDSA_C
requires_config_enabled MBEDTLS_SHA256_C
run_test    "Opaque key for client authentication" \
            "$P_SRV auth_mode=required" \
            "$P_CLI key_opaque=1 crt_file=data_files/server5.crt \
             key_file=data_files/server5.key" \
            0 \
            -c "key type: Opaque" \
            -s "Verifying peer X.509 certificate... ok" \
            -S "error" \
            -C "error"

# Test ciphersuites which we expect to be fully supported by PSA Crypto
# and check that we don't fall back to Mbed TLS' internal crypto primitives.
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-128-CCM
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-256-CCM
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256
run_test_psa TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384

requires_config_enabled MBEDTLS_ECP_DP_SECP521R1_ENABLED
run_test_psa_force_curve "secp521r1"
requires_config_enabled MBEDTLS_ECP_DP_BP512R1_ENABLED
run_test_psa_force_curve "brainpoolP512r1"
requires_config_enabled MBEDTLS_ECP_DP_SECP384R1_ENABLED
run_test_psa_force_curve "secp384r1"
requires_config_enabled MBEDTLS_ECP_DP_BP384R1_ENABLED
run_test_psa_force_curve "brainpoolP384r1"
requires_config_enabled MBEDTLS_ECP_DP_SECP256R1_ENABLED
run_test_psa_force_curve "secp256r1"
requires_config_enabled MBEDTLS_ECP_DP_SECP256K1_ENABLED
run_test_psa_force_curve "secp256k1"
requires_config_enabled MBEDTLS_ECP_DP_BP256R1_ENABLED
run_test_psa_force_curve "brainpoolP256r1"
requires_config_enabled MBEDTLS_ECP_DP_SECP224R1_ENABLED
run_test_psa_force_curve "secp224r1"
## SECP224K1 is buggy via the PSA API
## (https://github.com/ARMmbed/mbedtls/issues/3541),
## so it is disabled in PSA even when it's enabled in Mbed TLS.
## The proper dependency would be on PSA_WANT_ECC_SECP_K1_224 but
## dependencies on PSA symbols in ssl-opt.sh are not implemented yet.
#requires_config_enabled MBEDTLS_ECP_DP_SECP224K1_ENABLED
#run_test_psa_force_curve "secp224k1"
requires_config_enabled MBEDTLS_ECP_DP_SECP192R1_ENABLED
run_test_psa_force_curve "secp192r1"
requires_config_enabled MBEDTLS_ECP_DP_SECP192K1_ENABLED
run_test_psa_force_curve "secp192k1"

# Test current time in ServerHello
requires_config_enabled MBEDTLS_HAVE_TIME
run_test    "ServerHello contains gmt_unix_time" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3" \
            0 \
            -f "check_server_hello_time" \
            -F "check_server_hello_time"

# Test for uniqueness of IVs in AEAD ciphersuites
run_test    "Unique IV in GCM" \
            "$P_SRV exchanges=20 debug_level=4" \
            "$P_CLI exchanges=20 debug_level=4 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384" \
            0 \
            -u "IV used" \
            -U "IV used"

# Tests for certificate verification callback
run_test    "Configuration-specific CRT verification callback" \
            "$P_SRV debug_level=3" \
            "$P_CLI context_crt_cb=0 debug_level=3" \
            0 \
            -S "error" \
            -c "Verify requested for " \
            -c "Use configuration-specific verification callback" \
            -C "Use context-specific verification callback" \
            -C "error"

run_test    "Context-specific CRT verification callback" \
            "$P_SRV debug_level=3" \
            "$P_CLI context_crt_cb=1 debug_level=3" \
            0 \
            -S "error" \
            -c "Verify requested for " \
            -c "Use context-specific verification callback" \
            -C "Use configuration-specific verification callback" \
            -C "error"

# Test empty CA list in CertificateRequest in TLS 1.1 and earlier

requires_gnutls
requires_config_enabled MBEDTLS_SSL_PROTO_TLS1_1
run_test    "CertificateRequest with empty CA list, TLS 1.1 (GnuTLS server)" \
            "$G_SRV"\
            "$P_CLI force_version=tls1_1" \
            0

requires_gnutls
requires_config_enabled MBEDTLS_SSL_PROTO_TLS1
run_test    "CertificateRequest with empty CA list, TLS 1.0 (GnuTLS server)" \
            "$G_SRV"\
            "$P_CLI force_version=tls1" \
            0

# Tests for SHA-1 support
run_test    "SHA-1 forbidden by default in server certificate" \
            "$P_SRV key_file=data_files/server2.key crt_file=data_files/server2.crt" \
            "$P_CLI debug_level=2 allow_sha1=0" \
            1 \
            -c "The certificate is signed with an unacceptable hash"

run_test    "SHA-1 explicitly allowed in server certificate" \
            "$P_SRV key_file=data_files/server2.key crt_file=data_files/server2.crt" \
            "$P_CLI allow_sha1=1" \
            0

run_test    "SHA-256 allowed by default in server certificate" \
            "$P_SRV key_file=data_files/server2.key crt_file=data_files/server2-sha256.crt" \
            "$P_CLI allow_sha1=0" \
            0

run_test    "SHA-1 forbidden by default in client certificate" \
            "$P_SRV auth_mode=required allow_sha1=0" \
            "$P_CLI key_file=data_files/cli-rsa.key crt_file=data_files/cli-rsa-sha1.crt" \
            1 \
            -s "The certificate is signed with an unacceptable hash"

run_test    "SHA-1 explicitly allowed in client certificate" \
            "$P_SRV auth_mode=required allow_sha1=1" \
            "$P_CLI key_file=data_files/cli-rsa.key crt_file=data_files/cli-rsa-sha1.crt" \
            0

run_test    "SHA-256 allowed by default in client certificate" \
            "$P_SRV auth_mode=required allow_sha1=0" \
            "$P_CLI key_file=data_files/cli-rsa.key crt_file=data_files/cli-rsa-sha256.crt" \
            0

# Tests for datagram packing
run_test    "DTLS: multiple records in same datagram, client and server" \
            "$P_SRV dtls=1 dgram_packing=1 debug_level=2" \
            "$P_CLI dtls=1 dgram_packing=1 debug_level=2" \
            0 \
            -c "next record in same datagram" \
            -s "next record in same datagram"

run_test    "DTLS: multiple records in same datagram, client only" \
            "$P_SRV dtls=1 dgram_packing=0 debug_level=2" \
            "$P_CLI dtls=1 dgram_packing=1 debug_level=2" \
            0 \
            -s "next record in same datagram" \
            -C "next record in same datagram"

run_test    "DTLS: multiple records in same datagram, server only" \
            "$P_SRV dtls=1 dgram_packing=1 debug_level=2" \
            "$P_CLI dtls=1 dgram_packing=0 debug_level=2" \
            0 \
            -S "next record in same datagram" \
            -c "next record in same datagram"

run_test    "DTLS: multiple records in same datagram, neither client nor server" \
            "$P_SRV dtls=1 dgram_packing=0 debug_level=2" \
            "$P_CLI dtls=1 dgram_packing=0 debug_level=2" \
            0 \
            -S "next record in same datagram" \
            -C "next record in same datagram"

# Tests for Truncated HMAC extension

run_test    "Truncated HMAC: client default, server default" \
            "$P_SRV debug_level=4" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC: client disabled, server default" \
            "$P_SRV debug_level=4" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=0" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC: client enabled, server default" \
            "$P_SRV debug_level=4" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=1" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC: client enabled, server disabled" \
            "$P_SRV debug_level=4 trunc_hmac=0" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=1" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC: client disabled, server enabled" \
            "$P_SRV debug_level=4 trunc_hmac=1" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=0" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC: client enabled, server enabled" \
            "$P_SRV debug_level=4 trunc_hmac=1" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=1" \
            0 \
            -S "dumping 'expected mac' (20 bytes)" \
            -s "dumping 'expected mac' (10 bytes)"

run_test    "Truncated HMAC, DTLS: client default, server default" \
            "$P_SRV dtls=1 debug_level=4" \
            "$P_CLI dtls=1 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC, DTLS: client disabled, server default" \
            "$P_SRV dtls=1 debug_level=4" \
            "$P_CLI dtls=1 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=0" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC, DTLS: client enabled, server default" \
            "$P_SRV dtls=1 debug_level=4" \
            "$P_CLI dtls=1 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=1" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC, DTLS: client enabled, server disabled" \
            "$P_SRV dtls=1 debug_level=4 trunc_hmac=0" \
            "$P_CLI dtls=1 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=1" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC, DTLS: client disabled, server enabled" \
            "$P_SRV dtls=1 debug_level=4 trunc_hmac=1" \
            "$P_CLI dtls=1 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=0" \
            0 \
            -s "dumping 'expected mac' (20 bytes)" \
            -S "dumping 'expected mac' (10 bytes)"

requires_config_enabled MBEDTLS_SSL_TRUNCATED_HMAC
run_test    "Truncated HMAC, DTLS: client enabled, server enabled" \
            "$P_SRV dtls=1 debug_level=4 trunc_hmac=1" \
            "$P_CLI dtls=1 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA trunc_hmac=1" \
            0 \
            -S "dumping 'expected mac' (20 bytes)" \
            -s "dumping 'expected mac' (10 bytes)"

# Tests for Context serialization

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, client serializes, CCM" \
            "$P_SRV dtls=1 serialize=0 exchanges=2" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, client serializes, ChaChaPoly" \
            "$P_SRV dtls=1 serialize=0 exchanges=2" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, client serializes, GCM" \
            "$P_SRV dtls=1 serialize=0 exchanges=2" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Context serialization, client serializes, with CID" \
            "$P_SRV dtls=1 serialize=0 exchanges=2 cid=1 cid_val=dead" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 cid=1 cid_val=beef" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, server serializes, CCM" \
            "$P_SRV dtls=1 serialize=1 exchanges=2" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, server serializes, ChaChaPoly" \
            "$P_SRV dtls=1 serialize=1 exchanges=2" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, server serializes, GCM" \
            "$P_SRV dtls=1 serialize=1 exchanges=2" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Context serialization, server serializes, with CID" \
            "$P_SRV dtls=1 serialize=1 exchanges=2 cid=1 cid_val=dead" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 cid=1 cid_val=beef" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, both serialize, CCM" \
            "$P_SRV dtls=1 serialize=1 exchanges=2" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, both serialize, ChaChaPoly" \
            "$P_SRV dtls=1 serialize=1 exchanges=2" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, both serialize, GCM" \
            "$P_SRV dtls=1 serialize=1 exchanges=2" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Context serialization, both serialize, with CID" \
            "$P_SRV dtls=1 serialize=1 exchanges=2 cid=1 cid_val=dead" \
            "$P_CLI dtls=1 serialize=1 exchanges=2 cid=1 cid_val=beef" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, client serializes, CCM" \
            "$P_SRV dtls=1 serialize=0 exchanges=2" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, client serializes, ChaChaPoly" \
            "$P_SRV dtls=1 serialize=0 exchanges=2" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, client serializes, GCM" \
            "$P_SRV dtls=1 serialize=0 exchanges=2" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Context serialization, re-init, client serializes, with CID" \
            "$P_SRV dtls=1 serialize=0 exchanges=2 cid=1 cid_val=dead" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 cid=1 cid_val=beef" \
            0 \
            -c "Deserializing connection..." \
            -S "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, server serializes, CCM" \
            "$P_SRV dtls=1 serialize=2 exchanges=2" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, server serializes, ChaChaPoly" \
            "$P_SRV dtls=1 serialize=2 exchanges=2" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, server serializes, GCM" \
            "$P_SRV dtls=1 serialize=2 exchanges=2" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Context serialization, re-init, server serializes, with CID" \
            "$P_SRV dtls=1 serialize=2 exchanges=2 cid=1 cid_val=dead" \
            "$P_CLI dtls=1 serialize=0 exchanges=2 cid=1 cid_val=beef" \
            0 \
            -C "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, both serialize, CCM" \
            "$P_SRV dtls=1 serialize=2 exchanges=2" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, both serialize, ChaChaPoly" \
            "$P_SRV dtls=1 serialize=2 exchanges=2" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Context serialization, re-init, both serialize, GCM" \
            "$P_SRV dtls=1 serialize=2 exchanges=2" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Context serialization, re-init, both serialize, with CID" \
            "$P_SRV dtls=1 serialize=2 exchanges=2 cid=1 cid_val=dead" \
            "$P_CLI dtls=1 serialize=2 exchanges=2 cid=1 cid_val=beef" \
            0 \
            -c "Deserializing connection..." \
            -s "Deserializing connection..."

requires_config_enabled MBEDTLS_SSL_CONTEXT_SERIALIZATION
run_test    "Saving the serialized context to a file" \
            "$P_SRV dtls=1 serialize=1 context_file=context_srv.txt" \
            "$P_CLI dtls=1 serialize=1 context_file=context_cli.txt" \
            0 \
            -s "Save serialized context to a file... ok" \
            -c "Save serialized context to a file... ok"
rm -f context_srv.txt
rm -f context_cli.txt

# Tests for DTLS Connection ID extension

# So far, the CID API isn't implemented, so we can't
# grep for output witnessing its use. This needs to be
# changed once the CID extension is implemented.

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli enabled, Srv disabled" \
            "$P_SRV debug_level=3 dtls=1 cid=0" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=deadbeef" \
            0 \
            -s "Disable use of CID extension." \
            -s "found CID extension"           \
            -s "Client sent CID extension, but CID disabled" \
            -c "Enable use of CID extension."  \
            -c "client hello, adding CID extension" \
            -S "server hello, adding CID extension" \
            -C "found CID extension" \
            -S "Copy CIDs into SSL transform" \
            -C "Copy CIDs into SSL transform" \
            -c "Use of Connection ID was rejected by the server"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli disabled, Srv enabled" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=deadbeef" \
            "$P_CLI debug_level=3 dtls=1 cid=0" \
            0 \
            -c "Disable use of CID extension." \
            -C "client hello, adding CID extension"           \
            -S "found CID extension"           \
            -s "Enable use of CID extension." \
            -S "server hello, adding CID extension" \
            -C "found CID extension" \
            -S "Copy CIDs into SSL transform" \
            -C "Copy CIDs into SSL transform"  \
            -s "Use of Connection ID was not offered by client"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli+Srv CID nonempty" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 2 Bytes): de ad" \
            -s "Peer CID (length 2 Bytes): be ef" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID, 3D: Cli+Srv enabled, Cli+Srv CID nonempty" \
            -p "$P_PXY drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 dtls=1 cid=1 dgram_packing=0 cid_val=dead" \
            "$P_CLI debug_level=3 dtls=1 cid=1 dgram_packing=0 cid_val=beef" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 2 Bytes): de ad" \
            -s "Peer CID (length 2 Bytes): be ef" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID, MTU: Cli+Srv enabled, Cli+Srv CID nonempty" \
            -p "$P_PXY mtu=800" \
            "$P_SRV debug_level=3 mtu=800 dtls=1 cid=1 cid_val=dead" \
            "$P_CLI debug_level=3 mtu=800 dtls=1 cid=1 cid_val=beef" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 2 Bytes): de ad" \
            -s "Peer CID (length 2 Bytes): be ef" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID, 3D+MTU: Cli+Srv enabled, Cli+Srv CID nonempty" \
            -p "$P_PXY mtu=800 drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 mtu=800 dtls=1 cid=1 cid_val=dead" \
            "$P_CLI debug_level=3 mtu=800 dtls=1 cid=1 cid_val=beef" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 2 Bytes): de ad" \
            -s "Peer CID (length 2 Bytes): be ef" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli CID empty" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=deadbeef" \
            "$P_CLI debug_level=3 dtls=1 cid=1" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 4 Bytes): de ad be ef" \
            -s "Peer CID (length 0 Bytes):" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Srv CID empty" \
            "$P_SRV debug_level=3 dtls=1 cid=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=deadbeef" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -s "Peer CID (length 4 Bytes): de ad be ef" \
            -c "Peer CID (length 0 Bytes):" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli+Srv CID empty" \
            "$P_SRV debug_level=3 dtls=1 cid=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -S "Use of Connection ID has been negotiated" \
            -C "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli+Srv CID nonempty, AES-128-CCM-8" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 2 Bytes): de ad" \
            -s "Peer CID (length 2 Bytes): be ef" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli CID empty, AES-128-CCM-8" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=deadbeef" \
            "$P_CLI debug_level=3 dtls=1 cid=1 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 4 Bytes): de ad be ef" \
            -s "Peer CID (length 0 Bytes):" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Srv CID empty, AES-128-CCM-8" \
            "$P_SRV debug_level=3 dtls=1 cid=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=deadbeef force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -s "Peer CID (length 4 Bytes): de ad be ef" \
            -c "Peer CID (length 0 Bytes):" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli+Srv CID empty, AES-128-CCM-8" \
            "$P_SRV debug_level=3 dtls=1 cid=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -S "Use of Connection ID has been negotiated" \
            -C "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli+Srv CID nonempty, AES-128-CBC" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 2 Bytes): de ad" \
            -s "Peer CID (length 2 Bytes): be ef" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli CID empty, AES-128-CBC" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=deadbeef" \
            "$P_CLI debug_level=3 dtls=1 cid=1 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -c "Peer CID (length 4 Bytes): de ad be ef" \
            -s "Peer CID (length 0 Bytes):" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Srv CID empty, AES-128-CBC" \
            "$P_SRV debug_level=3 dtls=1 cid=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=deadbeef force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -s "Peer CID (length 4 Bytes): de ad be ef" \
            -c "Peer CID (length 0 Bytes):" \
            -s "Use of Connection ID has been negotiated" \
            -c "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
run_test    "Connection ID: Cli+Srv enabled, Cli+Srv CID empty, AES-128-CBC" \
            "$P_SRV debug_level=3 dtls=1 cid=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256" \
            0 \
            -c "Enable use of CID extension." \
            -s "Enable use of CID extension." \
            -c "client hello, adding CID extension" \
            -s "found CID extension"           \
            -s "Use of CID extension negotiated" \
            -s "server hello, adding CID extension" \
            -c "found CID extension" \
            -c "Use of CID extension negotiated" \
            -s "Copy CIDs into SSL transform" \
            -c "Copy CIDs into SSL transform" \
            -S "Use of Connection ID has been negotiated" \
            -C "Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID: Cli+Srv enabled, renegotiate without change of CID" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -s "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID: Cli+Srv enabled, renegotiate with different CID" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead cid_val_renego=beef renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef cid_val_renego=dead renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, no packing: Cli+Srv enabled, renegotiate with different CID" \
            "$P_SRV debug_level=3 dtls=1 cid=1 dgram_packing=0 cid_val=dead cid_val_renego=beef renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 dgram_packing=0 cid_val=beef cid_val_renego=dead renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, 3D+MTU: Cli+Srv enabled, renegotiate with different CID" \
            -p "$P_PXY mtu=800 drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 mtu=800 dtls=1 cid=1 cid_val=dead cid_val_renego=beef renegotiation=1" \
            "$P_CLI debug_level=3 mtu=800 dtls=1 cid=1 cid_val=beef cid_val_renego=dead renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID: Cli+Srv enabled, renegotiate without CID" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead cid_renego=0 renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef cid_renego=0 renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, no packing: Cli+Srv enabled, renegotiate without CID" \
            "$P_SRV debug_level=3 dtls=1 dgram_packing=0 cid=1 cid_val=dead cid_renego=0 renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 dgram_packing=0 cid=1 cid_val=beef cid_renego=0 renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, 3D+MTU: Cli+Srv enabled, renegotiate without CID" \
            -p "$P_PXY drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 mtu=800 dtls=1 cid=1 cid_val=dead cid_renego=0 renegotiation=1" \
            "$P_CLI debug_level=3 mtu=800 dtls=1 cid=1 cid_val=beef cid_renego=0 renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID: Cli+Srv enabled, CID on renegotiation" \
            "$P_SRV debug_level=3 dtls=1 cid=0 cid_renego=1 cid_val_renego=dead renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=0 cid_renego=1 cid_val_renego=beef renegotiation=1 renegotiate=1" \
            0 \
            -S "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -c "(after renegotiation) Use of Connection ID has been negotiated" \
            -s "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, no packing: Cli+Srv enabled, CID on renegotiation" \
            "$P_SRV debug_level=3 dtls=1 dgram_packing=0 cid=0 cid_renego=1 cid_val_renego=dead renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 dgram_packing=0 cid=0 cid_renego=1 cid_val_renego=beef renegotiation=1 renegotiate=1" \
            0 \
            -S "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -c "(after renegotiation) Use of Connection ID has been negotiated" \
            -s "(after renegotiation) Use of Connection ID has been negotiated"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, 3D+MTU: Cli+Srv enabled, CID on renegotiation" \
            -p "$P_PXY mtu=800 drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 mtu=800 dtls=1 dgram_packing=1 cid=0 cid_renego=1 cid_val_renego=dead renegotiation=1" \
            "$P_CLI debug_level=3 mtu=800 dtls=1 dgram_packing=1 cid=0 cid_renego=1 cid_val_renego=beef renegotiation=1 renegotiate=1" \
            0 \
            -S "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -s "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -c "(after renegotiation) Use of Connection ID has been negotiated" \
            -s "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID: Cli+Srv enabled, Cli disables on renegotiation" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef cid_renego=0 renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated" \
            -s "(after renegotiation) Use of Connection ID was not offered by client"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, 3D: Cli+Srv enabled, Cli disables on renegotiation" \
            -p "$P_PXY drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef cid_renego=0 renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated" \
            -s "(after renegotiation) Use of Connection ID was not offered by client" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID: Cli+Srv enabled, Srv disables on renegotiation" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead cid_renego=0 renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Use of Connection ID was rejected by the server"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Connection ID, 3D: Cli+Srv enabled, Srv disables on renegotiation" \
            -p "$P_PXY drop=5 delay=5 duplicate=5 bad_cid=1" \
            "$P_SRV debug_level=3 dtls=1 cid=1 cid_val=dead cid_renego=0 renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 cid=1 cid_val=beef renegotiation=1 renegotiate=1" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -C "(after renegotiation) Peer CID (length 2 Bytes): de ad" \
            -S "(after renegotiation) Peer CID (length 2 Bytes): be ef" \
            -C "(after renegotiation) Use of Connection ID has been negotiated" \
            -S "(after renegotiation) Use of Connection ID has been negotiated" \
            -c "(after renegotiation) Use of Connection ID was rejected by the server" \
            -c "ignoring unexpected CID" \
            -s "ignoring unexpected CID"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH
run_test    "Connection ID: Cli+Srv enabled, variable buffer lengths, MFL=512" \
            "$P_SRV dtls=1 cid=1 cid_val=dead debug_level=2" \
            "$P_CLI force_ciphersuite="TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" max_frag_len=512 dtls=1 cid=1 cid_val=beef" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -s "Reallocating in_buf" \
            -s "Reallocating out_buf"

requires_config_enabled MBEDTLS_SSL_DTLS_CONNECTION_ID
requires_config_enabled MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH
run_test    "Connection ID: Cli+Srv enabled, variable buffer lengths, MFL=1024" \
            "$P_SRV dtls=1 cid=1 cid_val=dead debug_level=2" \
            "$P_CLI force_ciphersuite="TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" max_frag_len=1024 dtls=1 cid=1 cid_val=beef" \
            0 \
            -c "(initial handshake) Peer CID (length 2 Bytes): de ad" \
            -s "(initial handshake) Peer CID (length 2 Bytes): be ef" \
            -s "(initial handshake) Use of Connection ID has been negotiated" \
            -c "(initial handshake) Use of Connection ID has been negotiated" \
            -s "Reallocating in_buf" \
            -s "Reallocating out_buf"

# Tests for Encrypt-then-MAC extension

run_test    "Encrypt then MAC: default" \
            "$P_SRV debug_level=3 \
             force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
            "$P_CLI debug_level=3" \
            0 \
            -c "client hello, adding encrypt_then_mac extension" \
            -s "found encrypt then mac extension" \
            -s "server hello, adding encrypt then mac extension" \
            -c "found encrypt_then_mac extension" \
            -c "using encrypt then mac" \
            -s "using encrypt then mac"

run_test    "Encrypt then MAC: client enabled, server disabled" \
            "$P_SRV debug_level=3 etm=0 \
             force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
            "$P_CLI debug_level=3 etm=1" \
            0 \
            -c "client hello, adding encrypt_then_mac extension" \
            -s "found encrypt then mac extension" \
            -S "server hello, adding encrypt then mac extension" \
            -C "found encrypt_then_mac extension" \
            -C "using encrypt then mac" \
            -S "using encrypt then mac"

run_test    "Encrypt then MAC: client enabled, aead cipher" \
            "$P_SRV debug_level=3 etm=1 \
             force_ciphersuite=TLS-RSA-WITH-AES-128-GCM-SHA256" \
            "$P_CLI debug_level=3 etm=1" \
            0 \
            -c "client hello, adding encrypt_then_mac extension" \
            -s "found encrypt then mac extension" \
            -S "server hello, adding encrypt then mac extension" \
            -C "found encrypt_then_mac extension" \
            -C "using encrypt then mac" \
            -S "using encrypt then mac"

run_test    "Encrypt then MAC: client disabled, server enabled" \
            "$P_SRV debug_level=3 etm=1 \
             force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
            "$P_CLI debug_level=3 etm=0" \
            0 \
            -C "client hello, adding encrypt_then_mac extension" \
            -S "found encrypt then mac extension" \
            -S "server hello, adding encrypt then mac extension" \
            -C "found encrypt_then_mac extension" \
            -C "using encrypt then mac" \
            -S "using encrypt then mac"

# Tests for Extended Master Secret extension

run_test    "Extended Master Secret: default" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3" \
            0 \
            -c "client hello, adding extended_master_secret extension" \
            -s "found extended master secret extension" \
            -s "server hello, adding extended master secret extension" \
            -c "found extended_master_secret extension" \
            -c "session hash for extended master secret" \
            -s "session hash for extended master secret"

run_test    "Extended Master Secret: client enabled, server disabled" \
            "$P_SRV debug_level=3 extended_ms=0" \
            "$P_CLI debug_level=3 extended_ms=1" \
            0 \
            -c "client hello, adding extended_master_secret extension" \
            -s "found extended master secret extension" \
            -S "server hello, adding extended master secret extension" \
            -C "found extended_master_secret extension" \
            -C "session hash for extended master secret" \
            -S "session hash for extended master secret"

run_test    "Extended Master Secret: client disabled, server enabled" \
            "$P_SRV debug_level=3 extended_ms=1" \
            "$P_CLI debug_level=3 extended_ms=0" \
            0 \
            -C "client hello, adding extended_master_secret extension" \
            -S "found extended master secret extension" \
            -S "server hello, adding extended master secret extension" \
            -C "found extended_master_secret extension" \
            -C "session hash for extended master secret" \
            -S "session hash for extended master secret"

# Tests for FALLBACK_SCSV

run_test    "Fallback SCSV: default" \
            "$P_SRV debug_level=2" \
            "$P_CLI debug_level=3 force_version=tls1_1" \
            0 \
            -C "adding FALLBACK_SCSV" \
            -S "received FALLBACK_SCSV" \
            -S "inapropriate fallback" \
            -C "is a fatal alert message (msg 86)"

run_test    "Fallback SCSV: explicitly disabled" \
            "$P_SRV debug_level=2" \
            "$P_CLI debug_level=3 force_version=tls1_1 fallback=0" \
            0 \
            -C "adding FALLBACK_SCSV" \
            -S "received FALLBACK_SCSV" \
            -S "inapropriate fallback" \
            -C "is a fatal alert message (msg 86)"

run_test    "Fallback SCSV: enabled" \
            "$P_SRV debug_level=2" \
            "$P_CLI debug_level=3 force_version=tls1_1 fallback=1" \
            1 \
            -c "adding FALLBACK_SCSV" \
            -s "received FALLBACK_SCSV" \
            -s "inapropriate fallback" \
            -c "is a fatal alert message (msg 86)"

run_test    "Fallback SCSV: enabled, max version" \
            "$P_SRV debug_level=2" \
            "$P_CLI debug_level=3 fallback=1" \
            0 \
            -c "adding FALLBACK_SCSV" \
            -s "received FALLBACK_SCSV" \
            -S "inapropriate fallback" \
            -C "is a fatal alert message (msg 86)"

requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: default, openssl server" \
            "$O_SRV" \
            "$P_CLI debug_level=3 force_version=tls1_1 fallback=0" \
            0 \
            -C "adding FALLBACK_SCSV" \
            -C "is a fatal alert message (msg 86)"

requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: enabled, openssl server" \
            "$O_SRV" \
            "$P_CLI debug_level=3 force_version=tls1_1 fallback=1" \
            1 \
            -c "adding FALLBACK_SCSV" \
            -c "is a fatal alert message (msg 86)"

requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: disabled, openssl client" \
            "$P_SRV debug_level=2" \
            "$O_CLI -tls1_1" \
            0 \
            -S "received FALLBACK_SCSV" \
            -S "inapropriate fallback"

requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: enabled, openssl client" \
            "$P_SRV debug_level=2" \
            "$O_CLI -tls1_1 -fallback_scsv" \
            1 \
            -s "received FALLBACK_SCSV" \
            -s "inapropriate fallback"

requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: enabled, max version, openssl client" \
            "$P_SRV debug_level=2" \
            "$O_CLI -fallback_scsv" \
            0 \
            -s "received FALLBACK_SCSV" \
            -S "inapropriate fallback"

# Test sending and receiving empty application data records

run_test    "Encrypt then MAC: empty application data record" \
            "$P_SRV auth_mode=none debug_level=4 etm=1" \
            "$P_CLI auth_mode=none etm=1 request_size=0 force_ciphersuite=TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA" \
            0 \
            -S "0000:  0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f" \
            -s "dumping 'input payload after decrypt' (0 bytes)" \
            -c "0 bytes written in 1 fragments"

run_test    "Encrypt then MAC: disabled, empty application data record" \
            "$P_SRV auth_mode=none debug_level=4 etm=0" \
            "$P_CLI auth_mode=none etm=0 request_size=0" \
            0 \
            -s "dumping 'input payload after decrypt' (0 bytes)" \
            -c "0 bytes written in 1 fragments"

run_test    "Encrypt then MAC, DTLS: empty application data record" \
            "$P_SRV auth_mode=none debug_level=4 etm=1 dtls=1" \
            "$P_CLI auth_mode=none etm=1 request_size=0 force_ciphersuite=TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA dtls=1" \
            0 \
            -S "0000:  0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f" \
            -s "dumping 'input payload after decrypt' (0 bytes)" \
            -c "0 bytes written in 1 fragments"

run_test    "Encrypt then MAC, DTLS: disabled, empty application data record" \
            "$P_SRV auth_mode=none debug_level=4 etm=0 dtls=1" \
            "$P_CLI auth_mode=none etm=0 request_size=0 dtls=1" \
            0 \
            -s "dumping 'input payload after decrypt' (0 bytes)" \
            -c "0 bytes written in 1 fragments"

## ClientHello generated with
## "openssl s_client -CAfile tests/data_files/test-ca.crt -tls1_1 -connect localhost:4433 -cipher ..."
## then manually twiddling the ciphersuite list.
## The ClientHello content is spelled out below as a hex string as
## "prefix ciphersuite1 ciphersuite2 ciphersuite3 ciphersuite4 suffix".
## The expected response is an inappropriate_fallback alert.
requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: beginning of list" \
            "$P_SRV debug_level=2" \
            "$TCP_CLIENT localhost $SRV_PORT '160301003e0100003a03022aafb94308dc22ca1086c65acc00e414384d76b61ecab37df1633b1ae1034dbe000008 5600 0031 0032 0033 0100000900230000000f000101' '15030200020256'" \
            0 \
            -s "received FALLBACK_SCSV" \
            -s "inapropriate fallback"

requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: end of list" \
            "$P_SRV debug_level=2" \
            "$TCP_CLIENT localhost $SRV_PORT '160301003e0100003a03022aafb94308dc22ca1086c65acc00e414384d76b61ecab37df1633b1ae1034dbe000008 0031 0032 0033 5600 0100000900230000000f000101' '15030200020256'" \
            0 \
            -s "received FALLBACK_SCSV" \
            -s "inapropriate fallback"

## Here the expected response is a valid ServerHello prefix, up to the random.
requires_openssl_with_fallback_scsv
run_test    "Fallback SCSV: not in list" \
            "$P_SRV debug_level=2" \
            "$TCP_CLIENT localhost $SRV_PORT '160301003e0100003a03022aafb94308dc22ca1086c65acc00e414384d76b61ecab37df1633b1ae1034dbe000008 0056 0031 0032 0033 0100000900230000000f000101' '16030200300200002c0302'" \
            0 \
            -S "received FALLBACK_SCSV" \
            -S "inapropriate fallback"

# Tests for CBC 1/n-1 record splitting

run_test    "CBC Record splitting: TLS 1.2, no splitting" \
            "$P_SRV" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA \
             request_size=123 force_version=tls1_2" \
            0 \
            -s "Read from client: 123 bytes read" \
            -S "Read from client: 1 bytes read" \
            -S "122 bytes read"

run_test    "CBC Record splitting: TLS 1.1, no splitting" \
            "$P_SRV" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA \
             request_size=123 force_version=tls1_1" \
            0 \
            -s "Read from client: 123 bytes read" \
            -S "Read from client: 1 bytes read" \
            -S "122 bytes read"

run_test    "CBC Record splitting: TLS 1.0, splitting" \
            "$P_SRV" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA \
             request_size=123 force_version=tls1" \
            0 \
            -S "Read from client: 123 bytes read" \
            -s "Read from client: 1 bytes read" \
            -s "122 bytes read"

run_test    "CBC Record splitting: TLS 1.0, splitting disabled" \
            "$P_SRV" \
            "$P_CLI force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA \
             request_size=123 force_version=tls1 recsplit=0" \
            0 \
            -s "Read from client: 123 bytes read" \
            -S "Read from client: 1 bytes read" \
            -S "122 bytes read"

run_test    "CBC Record splitting: TLS 1.0, splitting, nbio" \
            "$P_SRV nbio=2" \
            "$P_CLI nbio=2 force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA \
             request_size=123 force_version=tls1" \
            0 \
            -S "Read from client: 123 bytes read" \
            -s "Read from client: 1 bytes read" \
            -s "122 bytes read"

# Tests for Session Tickets

run_test    "Session resume using tickets: basic" \
            "$P_SRV debug_level=3 tickets=1" \
            "$P_CLI debug_level=3 tickets=1 reconnect=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using tickets: cache disabled" \
            "$P_SRV debug_level=3 tickets=1 cache_max=0" \
            "$P_CLI debug_level=3 tickets=1 reconnect=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using tickets: timeout" \
            "$P_SRV debug_level=3 tickets=1 cache_max=0 ticket_timeout=1" \
            "$P_CLI debug_level=3 tickets=1 reconnect=1 reco_delay=2" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -S "a session has been resumed" \
            -C "a session has been resumed"

run_test    "Session resume using tickets: session copy" \
            "$P_SRV debug_level=3 tickets=1 cache_max=0" \
            "$P_CLI debug_level=3 tickets=1 reconnect=1 reco_mode=0" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using tickets: openssl server" \
            "$O_SRV" \
            "$P_CLI debug_level=3 tickets=1 reconnect=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -c "a session has been resumed"

run_test    "Session resume using tickets: openssl client" \
            "$P_SRV debug_level=3 tickets=1" \
            "( $O_CLI -sess_out $SESSION; \
               $O_CLI -sess_in $SESSION; \
               rm -f $SESSION )" \
            0 \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed"

# Tests for Session Tickets with DTLS

run_test    "Session resume using tickets, DTLS: basic" \
            "$P_SRV debug_level=3 dtls=1 tickets=1" \
            "$P_CLI debug_level=3 dtls=1 tickets=1 reconnect=1 skip_close_notify=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using tickets, DTLS: cache disabled" \
            "$P_SRV debug_level=3 dtls=1 tickets=1 cache_max=0" \
            "$P_CLI debug_level=3 dtls=1 tickets=1 reconnect=1 skip_close_notify=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using tickets, DTLS: timeout" \
            "$P_SRV debug_level=3 dtls=1 tickets=1 cache_max=0 ticket_timeout=1" \
            "$P_CLI debug_level=3 dtls=1 tickets=1 reconnect=1 skip_close_notify=1 reco_delay=2" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -S "a session has been resumed" \
            -C "a session has been resumed"

run_test    "Session resume using tickets, DTLS: session copy" \
            "$P_SRV debug_level=3 dtls=1 tickets=1 cache_max=0" \
            "$P_CLI debug_level=3 dtls=1 tickets=1 reconnect=1 skip_close_notify=1 reco_mode=0" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using tickets, DTLS: openssl server" \
            "$O_SRV -dtls1" \
            "$P_CLI dtls=1 debug_level=3 tickets=1 reconnect=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -c "found session_ticket extension" \
            -c "parse new session ticket" \
            -c "a session has been resumed"

run_test    "Session resume using tickets, DTLS: openssl client" \
            "$P_SRV dtls=1 debug_level=3 tickets=1" \
            "( $O_CLI -dtls1 -sess_out $SESSION; \
               $O_CLI -dtls1 -sess_in $SESSION; \
               rm -f $SESSION )" \
            0 \
            -s "found session ticket extension" \
            -s "server hello, adding session ticket extension" \
            -S "session successfully restored from cache" \
            -s "session successfully restored from ticket" \
            -s "a session has been resumed"

# Tests for Session Resume based on session-ID and cache

run_test    "Session resume using cache: tickets enabled on client" \
            "$P_SRV debug_level=3 tickets=0" \
            "$P_CLI debug_level=3 tickets=1 reconnect=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -S "server hello, adding session ticket extension" \
            -C "found session_ticket extension" \
            -C "parse new session ticket" \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache: tickets enabled on server" \
            "$P_SRV debug_level=3 tickets=1" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1" \
            0 \
            -C "client hello, adding session ticket extension" \
            -S "found session ticket extension" \
            -S "server hello, adding session ticket extension" \
            -C "found session_ticket extension" \
            -C "parse new session ticket" \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache: cache_max=0" \
            "$P_SRV debug_level=3 tickets=0 cache_max=0" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1" \
            0 \
            -S "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -S "a session has been resumed" \
            -C "a session has been resumed"

run_test    "Session resume using cache: cache_max=1" \
            "$P_SRV debug_level=3 tickets=0 cache_max=1" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache: timeout > delay" \
            "$P_SRV debug_level=3 tickets=0" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1 reco_delay=0" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache: timeout < delay" \
            "$P_SRV debug_level=3 tickets=0 cache_timeout=1" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1 reco_delay=2" \
            0 \
            -S "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -S "a session has been resumed" \
            -C "a session has been resumed"

run_test    "Session resume using cache: no timeout" \
            "$P_SRV debug_level=3 tickets=0 cache_timeout=0" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1 reco_delay=2" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache: session copy" \
            "$P_SRV debug_level=3 tickets=0" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1 reco_mode=0" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache: openssl client" \
            "$P_SRV debug_level=3 tickets=0" \
            "( $O_CLI -sess_out $SESSION; \
               $O_CLI -sess_in $SESSION; \
               rm -f $SESSION )" \
            0 \
            -s "found session ticket extension" \
            -S "server hello, adding session ticket extension" \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed"

run_test    "Session resume using cache: openssl server" \
            "$O_SRV" \
            "$P_CLI debug_level=3 tickets=0 reconnect=1" \
            0 \
            -C "found session_ticket extension" \
            -C "parse new session ticket" \
            -c "a session has been resumed"

# Tests for Session Resume based on session-ID and cache, DTLS

run_test    "Session resume using cache, DTLS: tickets enabled on client" \
            "$P_SRV dtls=1 debug_level=3 tickets=0" \
            "$P_CLI dtls=1 debug_level=3 tickets=1 reconnect=1 skip_close_notify=1" \
            0 \
            -c "client hello, adding session ticket extension" \
            -s "found session ticket extension" \
            -S "server hello, adding session ticket extension" \
            -C "found session_ticket extension" \
            -C "parse new session ticket" \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache, DTLS: tickets enabled on server" \
            "$P_SRV dtls=1 debug_level=3 tickets=1" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1" \
            0 \
            -C "client hello, adding session ticket extension" \
            -S "found session ticket extension" \
            -S "server hello, adding session ticket extension" \
            -C "found session_ticket extension" \
            -C "parse new session ticket" \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache, DTLS: cache_max=0" \
            "$P_SRV dtls=1 debug_level=3 tickets=0 cache_max=0" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1" \
            0 \
            -S "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -S "a session has been resumed" \
            -C "a session has been resumed"

run_test    "Session resume using cache, DTLS: cache_max=1" \
            "$P_SRV dtls=1 debug_level=3 tickets=0 cache_max=1" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache, DTLS: timeout > delay" \
            "$P_SRV dtls=1 debug_level=3 tickets=0" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1 reco_delay=0" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache, DTLS: timeout < delay" \
            "$P_SRV dtls=1 debug_level=3 tickets=0 cache_timeout=1" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1 reco_delay=2" \
            0 \
            -S "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -S "a session has been resumed" \
            -C "a session has been resumed"

run_test    "Session resume using cache, DTLS: no timeout" \
            "$P_SRV dtls=1 debug_level=3 tickets=0 cache_timeout=0" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1 reco_delay=2" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache, DTLS: session copy" \
            "$P_SRV dtls=1 debug_level=3 tickets=0" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1 skip_close_notify=1 reco_mode=0" \
            0 \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed" \
            -c "a session has been resumed"

run_test    "Session resume using cache, DTLS: openssl client" \
            "$P_SRV dtls=1 debug_level=3 tickets=0" \
            "( $O_CLI -dtls1 -sess_out $SESSION; \
               $O_CLI -dtls1 -sess_in $SESSION; \
               rm -f $SESSION )" \
            0 \
            -s "found session ticket extension" \
            -S "server hello, adding session ticket extension" \
            -s "session successfully restored from cache" \
            -S "session successfully restored from ticket" \
            -s "a session has been resumed"

run_test    "Session resume using cache, DTLS: openssl server" \
            "$O_SRV -dtls1" \
            "$P_CLI dtls=1 debug_level=3 tickets=0 reconnect=1" \
            0 \
            -C "found session_ticket extension" \
            -C "parse new session ticket" \
            -c "a session has been resumed"

# Tests for Max Fragment Length extension

if [ "$MAX_IN_LEN" -lt "4096" ]; then
    printf '%s defines MBEDTLS_SSL_IN_CONTENT_LEN to be less than 4096. Fragment length tests will fail.\n' "${CONFIG_H}"
    exit 1
fi

if [ "$MAX_OUT_LEN" -lt "4096" ]; then
    printf '%s defines MBEDTLS_SSL_OUT_CONTENT_LEN to be less than 4096. Fragment length tests will fail.\n' "${CONFIG_H}"
    exit 1
fi

if [ $MAX_CONTENT_LEN -ne 16384 ]; then
    echo "Using non-default maximum content length $MAX_CONTENT_LEN"
fi

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: enabled, default" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3" \
            0 \
            -c "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -c "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -C "client hello, adding max_fragment_length extension" \
            -S "found max fragment length extension" \
            -S "server hello, max_fragment_length extension" \
            -C "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: enabled, default, larger message" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3 request_size=$(( $MAX_CONTENT_LEN + 1))" \
            0 \
            -c "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -c "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -C "client hello, adding max_fragment_length extension" \
            -S "found max fragment length extension" \
            -S "server hello, max_fragment_length extension" \
            -C "found max_fragment_length extension" \
            -c "$(( $MAX_CONTENT_LEN + 1)) bytes written in 2 fragments" \
            -s "$MAX_CONTENT_LEN bytes read" \
            -s "1 bytes read"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length, DTLS: enabled, default, larger message" \
            "$P_SRV debug_level=3 dtls=1" \
            "$P_CLI debug_level=3 dtls=1 request_size=$(( $MAX_CONTENT_LEN + 1))" \
            1 \
            -c "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -c "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -C "client hello, adding max_fragment_length extension" \
            -S "found max fragment length extension" \
            -S "server hello, max_fragment_length extension" \
            -C "found max_fragment_length extension" \
            -c "fragment larger than.*maximum "

# Run some tests with MBEDTLS_SSL_MAX_FRAGMENT_LENGTH disabled
# (session fragment length will be 16384 regardless of mbedtls
# content length configuration.)

requires_config_disabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: disabled, larger message" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3 request_size=$(( $MAX_CONTENT_LEN + 1))" \
            0 \
            -C "Maximum input fragment length is 16384" \
            -C "Maximum output fragment length is 16384" \
            -S "Maximum input fragment length is 16384" \
            -S "Maximum output fragment length is 16384" \
            -c "$(( $MAX_CONTENT_LEN + 1)) bytes written in 2 fragments" \
            -s "$MAX_CONTENT_LEN bytes read" \
            -s "1 bytes read"

requires_config_disabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length DTLS: disabled, larger message" \
            "$P_SRV debug_level=3 dtls=1" \
            "$P_CLI debug_level=3 dtls=1 request_size=$(( $MAX_CONTENT_LEN + 1))" \
            1 \
            -C "Maximum input fragment length is 16384" \
            -C "Maximum output fragment length is 16384" \
            -S "Maximum input fragment length is 16384" \
            -S "Maximum output fragment length is 16384" \
            -c "fragment larger than.*maximum "

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: used by client" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3 max_frag_len=4096" \
            0 \
            -c "Maximum input fragment length is 4096" \
            -c "Maximum output fragment length is 4096" \
            -s "Maximum input fragment length is 4096" \
            -s "Maximum output fragment length is 4096" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 512, server 1024" \
            "$P_SRV debug_level=3 max_frag_len=1024" \
            "$P_CLI debug_level=3 max_frag_len=512" \
            0 \
            -c "Maximum input fragment length is 512" \
            -c "Maximum output fragment length is 512" \
            -s "Maximum input fragment length is 512" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 512, server 2048" \
            "$P_SRV debug_level=3 max_frag_len=2048" \
            "$P_CLI debug_level=3 max_frag_len=512" \
            0 \
            -c "Maximum input fragment length is 512" \
            -c "Maximum output fragment length is 512" \
            -s "Maximum input fragment length is 512" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 512, server 4096" \
            "$P_SRV debug_level=3 max_frag_len=4096" \
            "$P_CLI debug_level=3 max_frag_len=512" \
            0 \
            -c "Maximum input fragment length is 512" \
            -c "Maximum output fragment length is 512" \
            -s "Maximum input fragment length is 512" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 1024, server 512" \
            "$P_SRV debug_level=3 max_frag_len=512" \
            "$P_CLI debug_level=3 max_frag_len=1024" \
            0 \
            -c "Maximum input fragment length is 1024" \
            -c "Maximum output fragment length is 1024" \
            -s "Maximum input fragment length is 1024" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 1024, server 2048" \
            "$P_SRV debug_level=3 max_frag_len=2048" \
            "$P_CLI debug_level=3 max_frag_len=1024" \
            0 \
            -c "Maximum input fragment length is 1024" \
            -c "Maximum output fragment length is 1024" \
            -s "Maximum input fragment length is 1024" \
            -s "Maximum output fragment length is 1024" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 1024, server 4096" \
            "$P_SRV debug_level=3 max_frag_len=4096" \
            "$P_CLI debug_level=3 max_frag_len=1024" \
            0 \
            -c "Maximum input fragment length is 1024" \
            -c "Maximum output fragment length is 1024" \
            -s "Maximum input fragment length is 1024" \
            -s "Maximum output fragment length is 1024" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 2048, server 512" \
            "$P_SRV debug_level=3 max_frag_len=512" \
            "$P_CLI debug_level=3 max_frag_len=2048" \
            0 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 2048, server 1024" \
            "$P_SRV debug_level=3 max_frag_len=1024" \
            "$P_CLI debug_level=3 max_frag_len=2048" \
            0 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 1024" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 2048, server 4096" \
            "$P_SRV debug_level=3 max_frag_len=4096" \
            "$P_CLI debug_level=3 max_frag_len=2048" \
            0 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 2048" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 4096, server 512" \
            "$P_SRV debug_level=3 max_frag_len=512" \
            "$P_CLI debug_level=3 max_frag_len=4096" \
            0 \
            -c "Maximum input fragment length is 4096" \
            -c "Maximum output fragment length is 4096" \
            -s "Maximum input fragment length is 4096" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 4096, server 1024" \
            "$P_SRV debug_level=3 max_frag_len=1024" \
            "$P_CLI debug_level=3 max_frag_len=4096" \
            0 \
            -c "Maximum input fragment length is 4096" \
            -c "Maximum output fragment length is 4096" \
            -s "Maximum input fragment length is 4096" \
            -s "Maximum output fragment length is 1024" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client 4096, server 2048" \
            "$P_SRV debug_level=3 max_frag_len=2048" \
            "$P_CLI debug_level=3 max_frag_len=4096" \
            0 \
            -c "Maximum input fragment length is 4096" \
            -c "Maximum output fragment length is 4096" \
            -s "Maximum input fragment length is 4096" \
            -s "Maximum output fragment length is 2048" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: used by server" \
            "$P_SRV debug_level=3 max_frag_len=4096" \
            "$P_CLI debug_level=3" \
            0 \
            -c "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -c "Maximum output fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum input fragment length is $MAX_CONTENT_LEN" \
            -s "Maximum output fragment length is 4096" \
            -C "client hello, adding max_fragment_length extension" \
            -S "found max fragment length extension" \
            -S "server hello, max_fragment_length extension" \
            -C "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
requires_gnutls
run_test    "Max fragment length: gnutls server" \
            "$G_SRV" \
            "$P_CLI debug_level=3 max_frag_len=4096" \
            0 \
            -c "Maximum input fragment length is 4096" \
            -c "Maximum output fragment length is 4096" \
            -c "client hello, adding max_fragment_length extension" \
            -c "found max_fragment_length extension"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client, message just fits" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3 max_frag_len=2048 request_size=2048" \
            0 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 2048" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension" \
            -c "2048 bytes written in 1 fragments" \
            -s "2048 bytes read"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: client, larger message" \
            "$P_SRV debug_level=3" \
            "$P_CLI debug_level=3 max_frag_len=2048 request_size=2345" \
            0 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 2048" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension" \
            -c "2345 bytes written in 2 fragments" \
            -s "2048 bytes read" \
            -s "297 bytes read"

requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Max fragment length: DTLS client, larger message" \
            "$P_SRV debug_level=3 dtls=1" \
            "$P_CLI debug_level=3 dtls=1 max_frag_len=2048 request_size=2345" \
            1 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 2048" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension" \
            -c "fragment larger than.*maximum"

# Tests for renegotiation

# Renegotiation SCSV always added, regardless of SSL_RENEGOTIATION
run_test    "Renegotiation: none, for reference" \
            "$P_SRV debug_level=3 exchanges=2 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -S "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: client-initiated" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -S "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: server-initiated" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request"

# Checks that no Signature Algorithm with SHA-1 gets negotiated. Negotiating SHA-1 would mean that
# the server did not parse the Signature Algorithm extension. This test is valid only if an MD
# algorithm stronger than SHA-1 is enabled in config.h
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: Signature Algorithms parsing, client-initiated" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -S "write hello request" \
            -S "client hello v3, signature_algorithm ext: 2" # Is SHA-1 negotiated?

# Checks that no Signature Algorithm with SHA-1 gets negotiated. Negotiating SHA-1 would mean that
# the server did not parse the Signature Algorithm extension. This test is valid only if an MD
# algorithm stronger than SHA-1 is enabled in config.h
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: Signature Algorithms parsing, server-initiated" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request" \
            -S "client hello v3, signature_algorithm ext: 2" # Is SHA-1 negotiated?

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: double" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
requires_config_enabled MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
run_test    "Renegotiation with max fragment length: client 2048, server 512" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1 max_frag_len=512" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1 max_frag_len=2048 force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8" \
            0 \
            -c "Maximum input fragment length is 2048" \
            -c "Maximum output fragment length is 2048" \
            -s "Maximum input fragment length is 2048" \
            -s "Maximum output fragment length is 512" \
            -c "client hello, adding max_fragment_length extension" \
            -s "found max fragment length extension" \
            -s "server hello, max_fragment_length extension" \
            -c "found max_fragment_length extension" \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: client-initiated, server-rejected" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=0 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \
            1 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -S "=> renegotiate" \
            -S "write hello request" \
            -c "SSL - Unexpected message at ServerHello in renegotiation" \
            -c "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: server-initiated, client-rejected, default" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 renegotiate=1 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=0" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -s "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: server-initiated, client-rejected, not enforced" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 renegotiate=1 \
             renego_delay=-1 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=0" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -s "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

# delay 2 for 1 alert record + 1 application data record
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: server-initiated, client-rejected, delay 2" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 renegotiate=1 \
             renego_delay=2 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=0" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -s "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: server-initiated, client-rejected, delay 0" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 renegotiate=1 \
             renego_delay=0 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=0" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -s "write hello request" \
            -s "SSL - An unexpected message was received from our peer"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: server-initiated, client-accepted, delay 0" \
            "$P_SRV debug_level=3 exchanges=2 renegotiation=1 renegotiate=1 \
             renego_delay=0 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: periodic, just below period" \
            "$P_SRV debug_level=3 exchanges=9 renegotiation=1 renego_period=3 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=2 renegotiation=1" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -S "record counter limit reached: renegotiate" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -S "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

# one extra exchange to be able to complete renego
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: periodic, just above period" \
            "$P_SRV debug_level=3 exchanges=9 renegotiation=1 renego_period=3 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=4 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -s "record counter limit reached: renegotiate" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: periodic, two times period" \
            "$P_SRV debug_level=3 exchanges=9 renegotiation=1 renego_period=3 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=7 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -s "record counter limit reached: renegotiate" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: periodic, above period, disabled" \
            "$P_SRV debug_level=3 exchanges=9 renegotiation=0 renego_period=3 auth_mode=optional" \
            "$P_CLI debug_level=3 exchanges=4 renegotiation=1" \
            0 \
            -C "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -S "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -S "record counter limit reached: renegotiate" \
            -C "=> renegotiate" \
            -S "=> renegotiate" \
            -S "write hello request" \
            -S "SSL - An unexpected message was received from our peer" \
            -S "failed"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: nbio, client-initiated" \
            "$P_SRV debug_level=3 nbio=2 exchanges=2 renegotiation=1 auth_mode=optional" \
            "$P_CLI debug_level=3 nbio=2 exchanges=2 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -S "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: nbio, server-initiated" \
            "$P_SRV debug_level=3 nbio=2 exchanges=2 renegotiation=1 renegotiate=1 auth_mode=optional" \
            "$P_CLI debug_level=3 nbio=2 exchanges=2 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: openssl server, client-initiated" \
            "$O_SRV -www" \
            "$P_CLI debug_level=3 exchanges=1 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -C "ssl_hanshake() returned" \
            -C "error" \
            -c "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: gnutls server strict, client-initiated" \
            "$G_SRV --priority=NORMAL:%SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3 exchanges=1 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -C "ssl_hanshake() returned" \
            -C "error" \
            -c "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: gnutls server unsafe, client-initiated default" \
            "$G_SRV --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3 exchanges=1 renegotiation=1 renegotiate=1" \
            1 \
            -c "client hello, adding renegotiation extension" \
            -C "found renegotiation extension" \
            -c "=> renegotiate" \
            -c "mbedtls_ssl_handshake() returned" \
            -c "error" \
            -C "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: gnutls server unsafe, client-inititated no legacy" \
            "$G_SRV --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3 exchanges=1 renegotiation=1 renegotiate=1 \
             allow_legacy=0" \
            1 \
            -c "client hello, adding renegotiation extension" \
            -C "found renegotiation extension" \
            -c "=> renegotiate" \
            -c "mbedtls_ssl_handshake() returned" \
            -c "error" \
            -C "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: gnutls server unsafe, client-inititated legacy" \
            "$G_SRV --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3 exchanges=1 renegotiation=1 renegotiate=1 \
             allow_legacy=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -C "found renegotiation extension" \
            -c "=> renegotiate" \
            -C "ssl_hanshake() returned" \
            -C "error" \
            -c "HTTP/1.0 200 [Oo][Kk]"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: DTLS, client-initiated" \
            "$P_SRV debug_level=3 dtls=1 exchanges=2 renegotiation=1" \
            "$P_CLI debug_level=3 dtls=1 exchanges=2 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -S "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: DTLS, server-initiated" \
            "$P_SRV debug_level=3 dtls=1 exchanges=2 renegotiation=1 renegotiate=1" \
            "$P_CLI debug_level=3 dtls=1 exchanges=2 renegotiation=1 \
             read_timeout=1000 max_resend=2" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request"

requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: DTLS, renego_period overflow" \
            "$P_SRV debug_level=3 dtls=1 exchanges=4 renegotiation=1 renego_period=18446462598732840962 auth_mode=optional" \
            "$P_CLI debug_level=3 dtls=1 exchanges=4 renegotiation=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO" \
            -s "found renegotiation extension" \
            -s "server hello, secure renegotiation extension" \
            -s "record counter limit reached: renegotiate" \
            -c "=> renegotiate" \
            -s "=> renegotiate" \
            -s "write hello request"

requires_gnutls
requires_config_enabled MBEDTLS_SSL_RENEGOTIATION
run_test    "Renegotiation: DTLS, gnutls server, client-initiated" \
            "$G_SRV -u --mtu 4096" \
            "$P_CLI debug_level=3 dtls=1 exchanges=1 renegotiation=1 renegotiate=1" \
            0 \
            -c "client hello, adding renegotiation extension" \
            -c "found renegotiation extension" \
            -c "=> renegotiate" \
            -C "mbedtls_ssl_handshake returned" \
            -C "error" \
            -s "Extra-header:"

# Test for the "secure renegotation" extension only (no actual renegotiation)

requires_gnutls
run_test    "Renego ext: gnutls server strict, client default" \
            "$G_SRV --priority=NORMAL:%SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3" \
            0 \
            -c "found renegotiation extension" \
            -C "error" \
            -c "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
run_test    "Renego ext: gnutls server unsafe, client default" \
            "$G_SRV --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3" \
            0 \
            -C "found renegotiation extension" \
            -C "error" \
            -c "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
run_test    "Renego ext: gnutls server unsafe, client break legacy" \
            "$G_SRV --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION" \
            "$P_CLI debug_level=3 allow_legacy=-1" \
            1 \
            -C "found renegotiation extension" \
            -c "error" \
            -C "HTTP/1.0 200 [Oo][Kk]"

requires_gnutls
run_test    "Renego ext: gnutls client strict, server default" \
            "$P_SRV debug_level=3" \
            "$G_CLI --priority=NORMAL:%SAFE_RENEGOTIATION localhost" \
            0 \
            -s "received TLS_EMPTY_RENEGOTIATION_INFO\|found renegotiation extension" \
            -s "server hello, secure renegotiation extension"

requires_gnutls
run_test    "Renego ext: gnutls client unsafe, server default" \
            "$P_SRV debug_level=3" \
            "$G_CLI --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION localhost" \
            0 \
            -S "received TLS_EMPTY_RENEGOTIATION_INFO\|found renegotiation extension" \
            -S "server hello, secure renegotiation extension"

requires_gnutls
run_test    "Renego ext: gnutls client unsafe, server break legacy" \
            "$P_SRV debug_level=3 allow_legacy=-1" \
            "$G_CLI --priority=NORMAL:%DISABLE_SAFE_RENEGOTIATION localhost" \
            1 \
            -S "received TLS_EMPTY_RENEGOTIATION_INFO\|found renegotiation extension" \
            -S "server hello, secure renegotiation extension"

# Tests for silently dropping trailing extra bytes in .der certificates

requires_gnutls
run_test    "DER format: no trailing bytes" \
            "$P_SRV crt_file=data_files/server5-der0.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

requires_gnutls
run_test    "DER format: with a trailing zero byte" \
            "$P_SRV crt_file=data_files/server5-der1a.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

requires_gnutls
run_test    "DER format: with a trailing random byte" \
            "$P_SRV crt_file=data_files/server5-der1b.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

requires_gnutls
run_test    "DER format: with 2 trailing random bytes" \
            "$P_SRV crt_file=data_files/server5-der2.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

requires_gnutls
run_test    "DER format: with 4 trailing random bytes" \
            "$P_SRV crt_file=data_files/server5-der4.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

requires_gnutls
run_test    "DER format: with 8 trailing random bytes" \
            "$P_SRV crt_file=data_files/server5-der8.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

requires_gnutls
run_test    "DER format: with 9 trailing random bytes" \
            "$P_SRV crt_file=data_files/server5-der9.crt \
             key_file=data_files/server5.key" \
            "$G_CLI localhost" \
            0 \
            -c "Handshake was completed" \

# Tests for auth_mode, there are duplicated tests using ca callback for authentication
# When updating these tests, modify the matching authentication tests accordingly

run_test    "Authentication: server badcert, client required" \
            "$P_SRV crt_file=data_files/server5-badsign.crt \
             key_file=data_files/server5.key" \
            "$P_CLI debug_level=1 auth_mode=required" \
            1 \
            -c "x509_verify_cert() returned" \
            -c "! The certificate is not correctly signed by the trusted CA" \
            -c "! mbedtls_ssl_handshake returned" \
            -c "X509 - Certificate verification failed"

run_test    "Authentication: server badcert, client optional" \
            "$P_SRV crt_file=data_files/server5-badsign.crt \
             key_file=data_files/server5.key" \
            "$P_CLI debug_level=1 auth_mode=optional" \
            0 \
            -c "x509_verify_cert() returned" \
            -c "! The certificate is not correctly signed by the trusted CA" \
            -C "! mbedtls_ssl_handshake returned" \
            -C "X509 - Certificate verification failed"

run_test    "Authentication: server goodcert, client optional, no trusted CA" \
            "$P_SRV" \
            "$P_CLI debug_level=3 auth_mode=optional ca_file=none ca_path=none" \
            0 \
            -c "x509_verify_cert() returned" \
            -c "! The certificate is not correctly signed by the trusted CA" \
            -c "! Certificate verification flags"\
            -C "! mbedtls_ssl_handshake returned" \
            -C "X509 - Certificate verification failed" \
            -C "SSL - No CA Chain is set, but required to operate"

run_test    "Authentication: server goodcert, client required, no trusted CA" \
            "$P_SRV" \
            "$P_CLI debug_level=3 auth_mode=required ca_file=none ca_path=none" \
            1 \
            -c "x509_verify_cert() returned" \
            -c "! The certificate is not correctly signed by the trusted CA" \
            -c "! Certificate verification flags"\
            -c "! mbedtls_ssl_handshake returned" \
            -c "SSL - No CA Chain is set, but required to operate"

# The purpose of the next two tests is to test the client's behaviour when receiving a server
# certificate with an unsupported elliptic curve. This should usually not happen because
# the client informs the server about the supported curves - it does, though, in the
# corner case of a static ECDH suite, because the server doesn't check the curve on that
# occasion (to be fixed). If that bug's fixed, the test needs to be altered to use a
# different means to have the server ignoring the client's supported curve list.

requires_config_enabled MBEDTLS_ECP_C
run_test    "Authentication: server ECDH p256v1, client required, p256v1 unsupported" \
            "$P_SRV debug_level=1 key_file=data_files/server5.key \
             crt_file=data_files/server5.ku-ka.crt" \
            "$P_CLI debug_level=3 auth_mode=required curves=secp521r1" \
            1 \
            -c "bad certificate (EC key curve)"\
            -c "! Certificate verification flags"\
            -C "bad server certificate (ECDH curve)" # Expect failure at earlier verification stage

requires_config_enabled MBEDTLS_ECP_C
run_test    "Authentication: server ECDH p256v1, client optional, p256v1 unsupported" \
            "$P_SRV debug_level=1 key_file=data_files/server5.key \
             crt_file=data_files/server5.ku-ka.crt" \
            "$P_CLI debug_level=3 auth_mode=optional curves=secp521r1" \
            1 \
            -c "bad certificate (EC key curve)"\
            -c "! Certificate verification flags"\
            -c "bad server certificate (ECDH curve)" # Expect failure only at ECDH params check

run_test    "Authentication: server badcert, client none" \
            "$P_SRV crt_file=data_files/server5-badsign.crt \
             key_file=data_files/server5.key" \
            "$P_CLI debug_level=1 auth_mode=none" \
            0 \
            -C "x509_verify_cert() returned" \
            -C "! The certificate is not correctly signed by the trusted CA" \
            -C "! mbedtls_ssl_handshake returned" \
            -C "X509 - Certificate verification failed"

run_test    "Authentication: client SHA256, server required" \
            "$P_SRV auth_mode=required" \
            "$P_CLI debug_level=3 crt_file=data_files/server6.crt \
             key_file=data_files/server6.key \
             force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384" \
            0 \
            -c "Supported Signature Algorithm found: 4," \
            -c "Supported Signature Algorithm found: 5,"

run_test    "Authentication: client SHA384, server required" \
            "$P_SRV auth_mode=required" \
            "$P_CLI debug_level=3 crt_file=data_files/server6.crt \
             key_file=data_files/server6.key \
             force_ciphersuite=TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256" \
            0 \
            -c "Supported Signature Algorithm found: 4," \
            -c "Supported Signature Algorithm found: 5,"

run_test    "Authentication: client has no cert, server required (TLS)" \
            "$P_SRV debug_level=3 auth_mode=required" \
            "$P_CLI debug_level=3 crt_file=none \
             key_file=data_files/server5.key" \
            1 \
            -S "skip write certificate request" \
            -C "skip parse certificate request" \
            -c "got a certificate request" \
            -c "= write certificate$" \
            -C "skip write certificate$" \
            -S "x509_verify_cert() returned" \
            -s "client has no certificate" \
            -s "! mbedtls_ssl_handshake returned" \
            -c "! mbedtls_ssl_handshake returned" \
            -s "No client certification received from the client, but required by the authentication mode"

run_test    "Authentication: client badcert, server required" \
            "$P_SRV debug_level=3 auth_mode=required" \
            "$P_CLI debug_level=3 crt_file=data_files/server5-badsign.crt \
             key_file=data_files/server5.key" \
            1 \
            -S "skip write certificate request" \