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OpenSSL peer certificate subject,issuer details are passed to env
This commit is contained in:
Gerhard Rieger
parent
cf3f6403bc
commit
05afec429d
5 changed files with 190 additions and 10 deletions
8
CHANGES
8
CHANGES
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@ -18,6 +18,14 @@ security:
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Turn off nested signal handler invocations
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Thanks to Peter Lobsinger for reporting and explaining this issue.
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new features:
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OpenSSL addresses set couple of environment variables from values in
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peer certificate, e.g.:
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SOCAT_OPENSSL_X509_SUBJECT, SOCAT_OPENSSL_X509_ISSUER,
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SOCAT_OPENSSL_X509_COMMONNAME,
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SOCAT_OPENSSL_X509V3_SUBJECTALTNAME_DNS
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Tests: ENV_OPENSSL_{CLIENT,SERVER}_X509_*
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corrections:
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Bind with ABSTRACT commands used non-abstract namespace (Linux).
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Test: ABSTRACT_BIND
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36
sysutils.c
36
sysutils.c
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@ -726,6 +726,42 @@ int xiosetenv2(const char *varname, const char *varname2, const char *value,
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# undef XIO_ENVNAMELEN
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}
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int xiosetenv3(const char *varname, const char *varname2, const char *varname3,
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const char *value,
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int overwrite) {
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# define XIO_ENVNAMELEN 256
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const char *progname;
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char envname[XIO_ENVNAMELEN];
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size_t i, l;
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progname = diag_get_string('p');
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envname[0] = '\0'; strncat(envname, progname, XIO_ENVNAMELEN-1);
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l = strlen(progname);
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strncat(envname+l, "_", XIO_ENVNAMELEN-l-1);
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l += 1;
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strncat(envname+l, varname, XIO_ENVNAMELEN-l-1);
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l += strlen(envname+l);
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strncat(envname+l, "_", XIO_ENVNAMELEN-l-1);
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l += 1;
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strncat(envname+l, varname2, XIO_ENVNAMELEN-l-1);
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l += strlen(envname+l);
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strncat(envname+l, "_", XIO_ENVNAMELEN-l-1);
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l += 1;
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strncat(envname+l, varname3, XIO_ENVNAMELEN-l-1);
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l += strlen(envname+l);
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for (i = 0; i < l; ++i) envname[i] = toupper(envname[i]);
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if (Setenv(envname, value, overwrite) < 0) {
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Warn3("setenv(\"%s\", \"%s\", 1): %s",
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envname, value, strerror(errno));
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#if HAVE_UNSETENV
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Unsetenv(envname); /* dont want to have a wrong value */
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#endif
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return -1;
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}
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return 0;
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# undef XIO_ENVNAMELEN
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}
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/* like xiosetenv(), but uses an unsigned long value */
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int xiosetenvulong(const char *varname, unsigned long value, int overwrite) {
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@ -92,6 +92,9 @@ extern int xiosetenv(const char *varname, const char *value, int overwrite);
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extern int
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xiosetenv2(const char *varname, const char *varname2, const char *value,
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int overwrite);
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extern int
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xiosetenv3(const char *varname, const char *varname2, const char *varname3,
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const char *value, int overwrite);
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extern int xiosetenvulong(const char *varname, unsigned long value,
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int overwrite);
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extern int xiosetenvushort(const char *varname, unsigned short value,
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99
test.sh
99
test.sh
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@ -78,6 +78,9 @@ LOCALHOST6=[::1]
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PROTO=$((144+RANDOM/2048))
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PORT=12002
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SOURCEPORT=2002
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TESTCERT_CONF=testcert.conf
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TESTCERT_SUBJECT="/C=XY"
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TESTCERT_ISSUER="/C=XY"
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CAT=cat
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OD_C="od -c"
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# precision sleep; takes seconds with fractional part
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@ -2204,7 +2207,7 @@ gentestcert () {
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local name="$1"
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if [ -s $name.key -a -s $name.crt -a -s $name.pem ]; then return; fi
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openssl genrsa $OPENSSL_RAND -out $name.key 768 >/dev/null 2>&1
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openssl req -new -config testcert.conf -key $name.key -x509 -out $name.crt -days 3653 >/dev/null 2>&1
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openssl req -new -config $TESTCERT_CONF -key $name.key -x509 -out $name.crt -days 3653 >/dev/null 2>&1
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cat $name.key $name.crt >$name.pem
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}
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@ -2214,7 +2217,7 @@ gentestdsacert () {
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if [ -s $name.key -a -s $name.crt -a -s $name.pem ]; then return; fi
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openssl dsaparam -out $name-dsa.pem 512 >/dev/null 2>&1
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openssl dhparam -dsaparam -out $name-dh.pem 512 >/dev/null 2>&1
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openssl req -newkey dsa:$name-dsa.pem -keyout $name.key -nodes -x509 -config testcert.conf -out $name.crt -days 3653 >/dev/null 2>&1
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openssl req -newkey dsa:$name-dsa.pem -keyout $name.key -nodes -x509 -config $TESTCERT_CONF -out $name.crt -days 3653 >/dev/null 2>&1
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cat $name-dsa.pem $name-dh.pem $name.key $name.crt >$name.pem
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}
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@ -11448,6 +11451,98 @@ PORT=$((PORT+1))
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N=$((N+1))
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#set -xv
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# test: OPENSSL sets of environment variables with important values of peer certificate
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unset SOCAT_OPENSSL_X509_SUBJECT SOCAT_OPENSSL_X509_ISSUER
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while read SSLDIST MODE MODULE FIELD VALUE TESTADDRESS PEERADDRESS; do
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if [ -z "$SSLDIST" ] || [[ "$SSLDIST" == \#* ]]; then continue; fi
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#
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test_proto="$(echo "$KEYW" |tr A-Z a-z)"
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NAME="ENV_${SSLDIST}_${MODE}_${MODULE}_${FIELD}"
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case "$TESTS" in
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*%functions%*|*%ip4%*|*%ipapp%*|*%tcp%*|*%$SSLDIST%*|*%envvar%*|*%$NAME%*)
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TEST="$NAME: $SSLDIST generates environment variable SOCAT_${SSLDIST}_${MODULE}_${FIELD} with correct value"
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# have a server accepting a connection and invoking some shell code. The shell
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# code extracts and prints the SOCAT related environment vars.
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# outside code then checks if the environment contains the variables correctly
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# describing the desired field.
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if ! eval $NUMCOND; then :;
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elif ! feat=$(testaddrs $FEAT); then
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$PRINTF "test $F_n $TEST... ${YELLOW}$(echo "$feat" |tr a-z A-Z) not available${NORMAL}\n" $N
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numCANT=$((numCANT+1))
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else
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tf="$td/test$N.stdout"
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te="$td/test$N.stderr"
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gentestcert testsrv
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gentestcert testcli
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#CMD0="$SOCAT $opts -u ${SSLDIST}-LISTEN:$PORT,bind=$LOCALHOST,cert=testsrv.pem,cafile=testcli.crt,verify=1 system:\"echo SOCAT_${SSLDIST}_${MODULE}_${FIELD}=\\\$SOCAT_${SSLDIST}_${MODULE}_${FIELD}; sleep 1\""
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test_proto=tcp4
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case "$MODE" in
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SERVER)
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CMD0="$SOCAT $opts -u $TESTADDRESS system:\"echo SOCAT_${SSLDIST}_${MODULE}_${FIELD}=\\\$SOCAT_${SSLDIST}_${MODULE}_${FIELD}; sleep 1\""
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CMD1="$SOCAT $opts -u /dev/null $PEERADDRESS"
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printf "test $F_n $TEST... " $N
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eval "$CMD0 2>\"${te}0\" >\"$tf\" &"
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pid0=$!
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wait${test_proto}port $PORT 1
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$CMD1 2>"${te}1"
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rc1=$?
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waitfile "$tf" 2
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kill $pid0 2>/dev/null; wait
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;;
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CLIENT)
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CMD0="$SOCAT $opts -u /dev/null $PEERADDRESS"
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CMD1="$SOCAT $opts -u $TESTADDRESS system:\"echo SOCAT_${SSLDIST}_${MODULE}_${FIELD}=\\\$SOCAT_${SSLDIST}_${MODULE}_${FIELD}; sleep 1\""
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printf "test $F_n $TEST... " $N
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$CMD0 2>"${te}0" &
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pid0=$!
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wait${test_proto}port $PORT 1
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eval "$CMD1 2>\"${te}1\" >\"$tf\""
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rc1=$?
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waitfile "$tf" 2
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kill $pid0 2>/dev/null; wait
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;;
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esac
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if [ $rc1 != 0 ]; then
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$PRINTF "$NO_RESULT (client failed):\n"
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echo "$CMD0 &"
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cat "${te}0"
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echo "$CMD1"
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cat "${te}1"
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numCANT=$((numCANT+1))
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elif [ "$(grep SOCAT_${SSLDIST}_${MODULE}_${FIELD} "${tf}" |sed -e 's/^[^=]*=//' |sed -e "s/[\"']//g")" = "$VALUE" ]; then
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$PRINTF "$OK\n"
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if [ "$debug" ]; then
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echo "$CMD0 &"
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cat "${te}0"
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echo "$CMD1"
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cat "${te}1"
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fi
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numOK=$((numOK+1))
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else
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$PRINTF "$FAILED\n"
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echo "$CMD0 &"
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cat "${te}0"
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echo "$CMD1"
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cat "${te}1"
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numFAIL=$((numFAIL+1))
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listFAIL="$listFAIL $N"
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fi
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fi # NUMCOND, feats
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;;
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esac
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N=$((N+1))
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#set +xv
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#
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done <<<"
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OPENSSL SERVER X509 SUBJECT $TESTCERT_SUBJECT OPENSSL-LISTEN:$PORT,so-reuseaddr,bind=$LOCALHOST,cert=testsrv.pem,cafile=testcli.crt,verify=1 OPENSSL-CONNECT:$LOCALHOST:$PORT,cert=testcli.pem,cafile=testsrv.crt,verify=1
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OPENSSL SERVER X509 ISSUER $TESTCERT_ISSUER OPENSSL-LISTEN:$PORT,so-reuseaddr,bind=$LOCALHOST,cert=testsrv.pem,cafile=testcli.crt,verify=1 OPENSSL-CONNECT:$LOCALHOST:$PORT,cert=testcli.pem,cafile=testsrv.crt,verify=1
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OPENSSL CLIENT X509 SUBJECT $TESTCERT_SUBJECT OPENSSL-CONNECT:$LOCALHOST:$PORT,cert=testcli.pem,cafile=testsrv.crt,verify=1 OPENSSL-LISTEN:$PORT,so-reuseaddr,bind=$LOCALHOST,cert=testsrv.pem,cafile=testcli.crt,verify=1
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OPENSSL CLIENT X509 ISSUER $TESTCERT_ISSUER OPENSSL-CONNECT:$LOCALHOST:$PORT,cert=testcli.pem,cafile=testsrv.crt,verify=1 OPENSSL-LISTEN:$PORT,so-reuseaddr,bind=$LOCALHOST,cert=testsrv.pem,cafile=testcli.crt,verify=1
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"
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set +xv
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###############################################################################
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# tests: option umask with "passive" NAMED group addresses
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while read addr fileopt addropts proto diropt ADDR2; do
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@ -602,7 +602,7 @@ int _xioopen_openssl_listen(struct single *xfd,
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ERR_lib_error_string(err), ERR_func_error_string(err),
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ERR_reason_error_string(err));
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}
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/* Msg1(level, "SSL_connect(): %s", ERR_error_string(e, buf));*/
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/* Msg1(level, "SSL_accept(): %s", ERR_error_string(e, buf));*/
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}
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break;
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case SSL_ERROR_SSL:
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@ -1042,22 +1042,59 @@ static const char *openssl_verify_messages[] = {
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/* 50 */ "application verification failure",
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} ;
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static int openssl_extract_cert_info(const char *field, X509_NAME *name) {
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int n, i;
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{
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BIO *bio = BIO_new(BIO_s_mem());
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char *buf = NULL, *str;
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size_t len;
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X509_NAME_print_ex(bio, name, 0, XN_FLAG_ONELINE&~ASN1_STRFLGS_ESC_MSB); /* rc not documented */
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len = BIO_get_mem_data (bio, &buf);
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if ((str = Malloc(len+1)) == NULL) {
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BIO_free(bio);
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return -1;
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}
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str[len] = '\0';
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Info2("SSL peer cert %s: \"%s\"", field, buf);
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xiosetenv2("OPENSSL_X509", field, buf, 1);
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free(str);
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BIO_free(bio);
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}
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n = X509_NAME_entry_count(name);
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for (i = 0; i < n; ++i) {
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X509_NAME_ENTRY *entry;
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char *text;
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ASN1_STRING *data;
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ASN1_OBJECT *obj;
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int nid;
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entry = X509_NAME_get_entry(name, i);
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data = X509_NAME_ENTRY_get_data(entry);
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obj = X509_NAME_ENTRY_get_object(entry);
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nid = OBJ_obj2nid(obj);
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text = (char *)ASN1_STRING_data(data);
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Debug3("SSL peer cert %s entry: %s=\"%s\"", field, OBJ_nid2ln(nid), text);
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xiosetenv3("OPENSSL_X509", field, OBJ_nid2ln(nid), text, 0);
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}
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return 0;
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}
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static int openssl_handle_peer_certificate(struct single *xfd,
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bool opt_ver, int level) {
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X509 *peer_cert;
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char *str;
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char buff[2048]; /* hold peer certificate */
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/*ASN1_TIME not_before, not_after;*/
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int status;
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/* SSL_CTX_add_extra_chain_cert
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SSL_get_verify_result
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*/
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if ((peer_cert = SSL_get_peer_certificate(xfd->para.openssl.ssl)) != NULL) {
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Debug("peer certificate:");
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if ((str = X509_NAME_oneline(X509_get_subject_name(peer_cert), buff, sizeof(buff))) != NULL)
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Debug1("\tsubject: %s", str); /*free (str); SIGSEGV*/
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if ((str = X509_NAME_oneline(X509_get_issuer_name(peer_cert), buff, sizeof(buff))) != NULL)
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Debug1("\tissuer: %s", str); /*free (str); SIGSEGV*/
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X509_NAME *name;
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if ((name = X509_get_subject_name(peer_cert)) != NULL)
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openssl_extract_cert_info("subject", name);
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if ((name = X509_get_issuer_name(peer_cert)) != NULL)
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openssl_extract_cert_info("issuer", name);
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/* I'd like to provide dates too; see
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http://markmail.org/message/yi4vspp7aeu3xwtu#query:+page:1+mid:jhnl4wklif3pgzqf+state:results */
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}
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if (peer_cert) {
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@ -1192,6 +1229,7 @@ ssize_t xioread_openssl(struct single *pipe, void *buff, size_t bufsiz) {
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case SSL_ERROR_NONE:
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/* this is not an error, but I dare not continue for security reasons*/
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Error("ok");
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break;
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case SSL_ERROR_ZERO_RETURN:
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Error("connection closed by peer");
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break;
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