rpms/openssh
7
0
Fork 1
Code Issues Pull Requests Releases Activity
fa840d638a
openssh/openssh-8.0p1-pkcs11-uri.patch
DistroBaker fba82b8622 Merged update from upstream sources 
This is an automated DistroBaker update from upstream sources.
If you do not know what this is about or would like to opt out,
contact the OSCI team.

Source: https://src.fedoraproject.org/rpms/openssh.git#ab05c4fa21f7c4249ac45ab7c1a0c2c5cfd9336c
2021-01-22 17:19:29 +00:00

3149 lines
96 KiB
Diff
Raw Blame History

commit ed3eaf7d68c083b6015ca3425b75932999dafaad
Author: Jakub Jelen <jjelen@redhat.com>
Date: Wed Apr 24 17:23:21 2019 +0200
PKCS#11 URI from Fedora
* Print PKCS#11 URIs from ssh-keygen
* Accept PKCS#11 URIs in -i argument to ssh
* Allow PKCS#11 URI specification in ssh_config
* Fallback to p11-kit-proxy
* PKCS#11 URI support for ssh-add and ssh-agent
* internal representation is URI
* Allow to specify pin-value in URI to avoid interactive prompts
Currently recognized and used parts of PKCS#11 URI:
* path (optional)
* token
* id
* manufacturer
* (library-manufacturer)
* query (optional)
* module-path
* pin-value
Unit test for PKCS#11 URIs
* test PKCS#11 URI parser, generator
* test percent_encodeer and decoder
Regression tests for PKCS#11 URI support
* soft-pkcs11.so from people.su.se/~lha/soft-pkcs11
* Return correct CKR for unknown attributes
* Adjust and build it with regress tests (allowing agent-pkcs11 test)
* Test PKCS#11 URIs support with soft-pkcs11
* Direct usage from commandline (URI, provider and combination)
* Usage from configuration files
* Usage in ssh-agent (add, sign, remove)
* Make sure it is built with correct paths
diff --git a/Makefile.in b/Makefile.in
index e7549470..4511f82a 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -102,7 +102,7 @@ LIBSSH_OBJS=${LIBOPENSSH_OBJS} \
monitor_fdpass.o rijndael.o ssh-dss.o ssh-ecdsa.o ssh-ecdsa-sk.o \
ssh-ed25519-sk.o ssh-rsa.o dh.o \
msg.o progressmeter.o dns.o entropy.o gss-genr.o umac.o umac128.o \
- ssh-pkcs11.o smult_curve25519_ref.o \
+ ssh-pkcs11.o ssh-pkcs11-uri.o smult_curve25519_ref.o \
poly1305.o chacha.o cipher-chachapoly.o cipher-chachapoly-libcrypto.o \
ssh-ed25519.o digest-openssl.o digest-libc.o \
hmac.o sc25519.o ge25519.o fe25519.o ed25519.o verify.o hash.o \
@@ -289,6 +289,8 @@ clean: regressclean
rm -f regress/unittests/match/test_match$(EXEEXT)
rm -f regress/unittests/utf8/*.o
rm -f regress/unittests/utf8/test_utf8$(EXEEXT)
+ rm -f regress/unittests/pkcs11/*.o
+ rm -f regress/unittests/pkcs11/test_pkcs11$(EXEEXT)
rm -f regress/misc/kexfuzz/*.o
rm -f regress/misc/kexfuzz/kexfuzz$(EXEEXT)
rm -f regress/misc/sk-dummy/*.o
@@ -322,6 +324,8 @@ distclean: regressclean
rm -f regress/unittests/match/test_match
rm -f regress/unittests/utf8/*.o
rm -f regress/unittests/utf8/test_utf8
+ rm -f regress/unittests/pkcs11/*.o
+ rm -f regress/unittests/pkcs11/test_pkcs11
rm -f regress/misc/kexfuzz/*.o
rm -f regress/misc/kexfuzz/kexfuzz$(EXEEXT)
(cd openbsd-compat && $(MAKE) distclean)
@@ -490,6 +494,7 @@ regress-prep:
$(MKDIR_P) `pwd`/regress/unittests/kex
$(MKDIR_P) `pwd`/regress/unittests/match
$(MKDIR_P) `pwd`/regress/unittests/utf8
+ $(MKDIR_P) `pwd`/regress/unittests/pkcs11
$(MKDIR_P) `pwd`/regress/misc/kexfuzz
$(MKDIR_P) `pwd`/regress/misc/sk-dummy
[ -f `pwd`/regress/Makefile ] || \
@@ -617,6 +622,16 @@ regress/unittests/utf8/test_utf8$(EXEEXT): \
regress/unittests/test_helper/libtest_helper.a \
-lssh -lopenbsd-compat -lssh -lopenbsd-compat $(LIBS)
+UNITTESTS_TEST_PKCS11_OBJS=\
+ regress/unittests/pkcs11/tests.o
+
+regress/unittests/pkcs11/test_pkcs11$(EXEEXT): \
+ ${UNITTESTS_TEST_PKCS11_OBJS} \
+ regress/unittests/test_helper/libtest_helper.a libssh.a
+ $(LD) -o $@ $(LDFLAGS) $(UNITTESTS_TEST_PKCS11_OBJS) \
+ regress/unittests/test_helper/libtest_helper.a \
+ -lssh -lopenbsd-compat -lssh -lopenbsd-compat $(LIBS)
+
MISC_KEX_FUZZ_OBJS=\
regress/misc/kexfuzz/kexfuzz.o \
$(SKOBJS)
@@ -655,6 +670,7 @@ regress-unit-binaries: regress-prep $(REGRESSLIBS) \
regress/unittests/kex/test_kex$(EXEEXT) \
regress/unittests/match/test_match$(EXEEXT) \
regress/unittests/utf8/test_utf8$(EXEEXT) \
+ regress/unittests/pkcs11/test_pkcs11$(EXEEXT) \
regress/misc/kexfuzz/kexfuzz$(EXEEXT)
tests: file-tests t-exec interop-tests unit
diff --git a/configure.ac b/configure.ac
index b689db4b..98d3ce4f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1911,12 +1911,14 @@ AC_LINK_IFELSE(
[AC_DEFINE([HAVE_ISBLANK], [1], [Define if you have isblank(3C).])
])
+SCARD_MSG="yes"
disable_pkcs11=
AC_ARG_ENABLE([pkcs11],
[ --disable-pkcs11 disable PKCS#11 support code [no]],
[
if test "x$enableval" = "xno" ; then
disable_pkcs11=1
+ SCARD_MSG="no"
fi
]
)
@@ -1945,6 +1947,40 @@ AC_SEARCH_LIBS([dlopen], [dl])
AC_CHECK_FUNCS([dlopen])
AC_CHECK_DECL([RTLD_NOW], [], [], [#include <dlfcn.h>])
+# Check whether we have a p11-kit, we got default provider on command line
+DEFAULT_PKCS11_PROVIDER_MSG="no"
+AC_ARG_WITH([default-pkcs11-provider],
+ [ --with-default-pkcs11-provider[[=PATH]] Use default pkcs11 provider (p11-kit detected by default)],
+ [ if test "x$withval" != "xno" && test "x$disable_pkcs11" = "x"; then
+ if test "x$withval" = "xyes" ; then
+ AC_PATH_TOOL([PKGCONFIG], [pkg-config], [no])
+ if test "x$PKGCONFIG" != "xno"; then
+ AC_MSG_CHECKING([if $PKGCONFIG knows about p11-kit])
+ if "$PKGCONFIG" "p11-kit-1"; then
+ AC_MSG_RESULT([yes])
+ use_pkgconfig_for_p11kit=yes
+ else
+ AC_MSG_RESULT([no])
+ fi
+ fi
+ else
+ PKCS11_PATH="${withval}"
+ fi
+ if test "x$use_pkgconfig_for_p11kit" = "xyes"; then
+ PKCS11_PATH=`$PKGCONFIG --variable=proxy_module p11-kit-1`
+ fi
+ AC_CHECK_FILE("$PKCS11_PATH",
+ [ AC_DEFINE_UNQUOTED([PKCS11_DEFAULT_PROVIDER], ["$PKCS11_PATH"], [Path to default PKCS#11 provider (p11-kit proxy)])
+ DEFAULT_PKCS11_PROVIDER_MSG="$PKCS11_PATH"
+ ],
+ [ AC_MSG_ERROR([Requested PKCS11 provided not found]) ]
+ )
+ else
+ AC_MSG_WARN([Needs PKCS11 support to enable default pkcs11 provider])
+ fi ]
+)
+
+
# IRIX has a const char return value for gai_strerror()
AC_CHECK_FUNCS([gai_strerror], [
AC_DEFINE([HAVE_GAI_STRERROR])
@@ -5401,6 +5437,7 @@ echo " BSD Auth support: $BSD_AUTH_MSG"
echo " Random number source: $RAND_MSG"
echo " Privsep sandbox style: $SANDBOX_STYLE"
echo " PKCS#11 support: $enable_pkcs11"
+echo " Default PKCS#11 provider: $DEFAULT_PKCS11_PROVIDER_MSG"
echo " U2F/FIDO support: $enable_sk"
echo ""
diff --git a/regress/Makefile b/regress/Makefile
index 774c10d4..6bf3b627 100644
--- a/regress/Makefile
+++ b/regress/Makefile
@@ -116,7 +116,8 @@ CLEANFILES= *.core actual agent-key.* authorized_keys_${USERNAME} \
known_hosts known_hosts-cert known_hosts.* krl-* ls.copy \
modpipe netcat no_identity_config \
pidfile putty.rsa2 ready regress.log remote_pid \
- revoked-* rsa rsa-agent rsa-agent.pub rsa.pub rsa_ssh2_cr.prv \
+ revoked-* rsa rsa-agent rsa-agent.pub rsa-agent-cert.pub \
+ rsa.pub rsa_ssh2_cr.prv pkcs11*.crt pkcs11*.key pkcs11.info \
rsa_ssh2_crnl.prv scp-ssh-wrapper.exe \
scp-ssh-wrapper.scp setuid-allowed sftp-server.log \
sftp-server.sh sftp.log ssh-log-wrapper.sh ssh.log \
@@ -246,6 +247,7 @@ unit:
V="" ; \
test "x${USE_VALGRIND}" = "x" || \
V=${.CURDIR}/valgrind-unit.sh ; \
+ $$V ${.OBJDIR}/unittests/pkcs11/test_pkcs11 ; \
$$V ${.OBJDIR}/unittests/sshbuf/test_sshbuf ; \
$$V ${.OBJDIR}/unittests/sshkey/test_sshkey \
-d ${.CURDIR}/unittests/sshkey/testdata ; \
diff --git a/regress/agent-pkcs11.sh b/regress/agent-pkcs11.sh
index fbbaea51..5d75d69f 100644
--- a/regress/agent-pkcs11.sh
+++ b/regress/agent-pkcs11.sh
@@ -113,7 +113,7 @@ else
done
trace "remove pkcs11 keys"
- echo ${TEST_SSH_PIN} | notty ${SSHADD} -e ${TEST_SSH_PKCS11} > /dev/null 2>&1
+ ${SSHADD} -e ${TEST_SSH_PKCS11} > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -e failed: exit code $r"
diff --git a/regress/pkcs11.sh b/regress/pkcs11.sh
new file mode 100644
index 00000000..a91aee94
--- /dev/null
+++ b/regress/pkcs11.sh
@@ -0,0 +1,349 @@
+#
+# Copyright (c) 2017 Red Hat
+#
+# Authors: Jakub Jelen <jjelen@redhat.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+tid="pkcs11 tests with soft token"
+
+try_token_libs() {
+ for _lib in "$@" ; do
+ if test -f "$_lib" ; then
+ verbose "Using token library $_lib"
+ TEST_SSH_PKCS11="$_lib"
+ return
+ fi
+ done
+ echo "skipped: Unable to find PKCS#11 token library"
+ exit 0
+}
+
+try_token_libs \
+ /usr/local/lib/softhsm/libsofthsm2.so \
+ /usr/lib64/pkcs11/libsofthsm2.so \
+ /usr/lib/x86_64-linux-gnu/softhsm/libsofthsm2.so
+
+TEST_SSH_PIN=1234
+TEST_SSH_SOPIN=12345678
+if [ "x$TEST_SSH_SSHPKCS11HELPER" != "x" ]; then
+ SSH_PKCS11_HELPER="${TEST_SSH_SSHPKCS11HELPER}"
+ export SSH_PKCS11_HELPER
+fi
+
+test -f "$TEST_SSH_PKCS11" || fatal "$TEST_SSH_PKCS11 does not exist"
+
+# setup environment for softhsm token
+DIR=$OBJ/SOFTHSM
+rm -rf $DIR
+TOKEN=$DIR/tokendir
+mkdir -p $TOKEN
+SOFTHSM2_CONF=$DIR/softhsm2.conf
+export SOFTHSM2_CONF
+cat > $SOFTHSM2_CONF << EOF
+# SoftHSM v2 configuration file
+directories.tokendir = ${TOKEN}
+objectstore.backend = file
+# ERROR, WARNING, INFO, DEBUG
+log.level = DEBUG
+# If CKF_REMOVABLE_DEVICE flag should be set
+slots.removable = false
+EOF
+out=$(softhsm2-util --init-token --free --label token-slot-0 --pin "$TEST_SSH_PIN" --so-pin "$TEST_SSH_SOPIN")
+slot=$(echo -- $out | sed 's/.* //')
+
+# prevent ssh-agent from calling ssh-askpass
+SSH_ASKPASS=/usr/bin/true
+export SSH_ASKPASS
+unset DISPLAY
+# We need interactive access to test PKCS# since it prompts for PIN
+sed -i 's/.*BatchMode.*//g' $OBJ/ssh_proxy
+
+# start command w/o tty, so ssh accepts pin from stdin (from agent-pkcs11.sh)
+notty() {
+ perl -e 'use POSIX; POSIX::setsid();
+ if (fork) { wait; exit($? >> 8); } else { exec(@ARGV) }' "$@"
+}
+
+trace "generating keys"
+ID1="02"
+ID2="04"
+RSA=${DIR}/RSA
+EC=${DIR}/EC
+openssl genpkey -algorithm rsa > $RSA
+openssl pkcs8 -nocrypt -in $RSA |\
+ softhsm2-util --slot "$slot" --label "SSH RSA Key $ID1" --id $ID1 \
+ --pin "$TEST_SSH_PIN" --import /dev/stdin
+openssl genpkey \
+ -genparam \
+ -algorithm ec \
+ -pkeyopt ec_paramgen_curve:prime256v1 |\
+ openssl genpkey \
+ -paramfile /dev/stdin > $EC
+openssl pkcs8 -nocrypt -in $EC |\
+ softhsm2-util --slot "$slot" --label "SSH ECDSA Key $ID2" --id $ID2 \
+ --pin "$TEST_SSH_PIN" --import /dev/stdin
+
+trace "List the keys in the ssh-keygen with PKCS#11 URIs"
+${SSHKEYGEN} -D ${TEST_SSH_PKCS11} > $OBJ/token_keys
+if [ $? -ne 0 ]; then
+ fail "FAIL: keygen fails to enumerate keys on PKCS#11 token"
+fi
+grep "pkcs11:" $OBJ/token_keys > /dev/null
+if [ $? -ne 0 ]; then
+ fail "FAIL: The keys from ssh-keygen do not contain PKCS#11 URI as a comment"
+fi
+
+# Set the ECDSA key to authorized keys
+grep "ECDSA" $OBJ/token_keys > $OBJ/authorized_keys_$USER
+
+trace "Simple connect with ssh (without PKCS#11 URI)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -I ${TEST_SSH_PKCS11} \
+ -F $OBJ/ssh_proxy somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with pkcs11 failed (exit code $r)"
+fi
+
+trace "Connect with PKCS#11 URI"
+trace " (ECDSA key should succeed)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:id=%${ID2}?module-path=${TEST_SSH_PKCS11}" somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI failed (exit code $r)"
+fi
+
+trace " (RSA key should fail)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:id=%${ID1}?module-path=${TEST_SSH_PKCS11}" somehost exit 5
+r=$?
+if [ $r -eq 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI succeeded (should fail)"
+fi
+
+trace "Connect with PKCS#11 URI including PIN should not prompt"
+trace " (ECDSA key should succeed)"
+${SSH} -F $OBJ/ssh_proxy -i \
+ "pkcs11:id=%${ID2}?module-path=${TEST_SSH_PKCS11}&pin-value=${TEST_SSH_PIN}" somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI failed (exit code $r)"
+fi
+
+trace " (RSA key should fail)"
+${SSH} -F $OBJ/ssh_proxy -i \
+ "pkcs11:id=%${ID1}?module-path=${TEST_SSH_PKCS11}&pin-value=${TEST_SSH_PIN}" somehost exit 5
+r=$?
+if [ $r -eq 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI succeeded (should fail)"
+fi
+
+trace "Connect with various filtering options in PKCS#11 URI"
+trace " (by object label, ECDSA should succeed)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:object=SSH%20ECDSA%20Key%2004?module-path=${TEST_SSH_PKCS11}" somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI failed (exit code $r)"
+fi
+
+trace " (by object label, RSA key should fail)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:object=SSH%20RSA%20Key%2002?module-path=${TEST_SSH_PKCS11}" somehost exit 5
+r=$?
+if [ $r -eq 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI succeeded (should fail)"
+fi
+
+trace " (by token label, ECDSA key should succeed)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:id=%${ID2};token=token-slot-0?module-path=${TEST_SSH_PKCS11}" somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI failed (exit code $r)"
+fi
+
+trace " (by wrong token label, should fail)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:token=token-slot-99?module-path=${TEST_SSH_PKCS11}" somehost exit 5
+r=$?
+if [ $r -eq 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI succeeded (should fail)"
+fi
+
+
+
+
+trace "Test PKCS#11 URI specification in configuration files"
+echo "IdentityFile \"pkcs11:id=%${ID2}?module-path=${TEST_SSH_PKCS11}\"" \
+ >> $OBJ/ssh_proxy
+trace " (ECDSA key should succeed)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI in config failed (exit code $r)"
+fi
+
+# Set the RSA key as authorized
+grep "RSA" $OBJ/token_keys > $OBJ/authorized_keys_$USER
+
+trace " (RSA key should fail)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+r=$?
+if [ $r -eq 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI in config succeeded (should fail)"
+fi
+sed -i -e "/IdentityFile/d" $OBJ/ssh_proxy
+
+trace "Test PKCS#11 URI specification in configuration files with bogus spaces"
+echo "IdentityFile \" pkcs11:?module-path=${TEST_SSH_PKCS11} \"" \
+ >> $OBJ/ssh_proxy
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI with bogus spaces in config failed" \
+ "(exit code $r)"
+fi
+sed -i -e "/IdentityFile/d" $OBJ/ssh_proxy
+
+
+trace "Combination of PKCS11Provider and PKCS11URI on commandline"
+trace " (RSA key should succeed)"
+echo ${TEST_SSH_PIN} | notty ${SSH} -F $OBJ/ssh_proxy \
+ -i "pkcs11:id=%${ID1}" -I ${TEST_SSH_PKCS11} somehost exit 5
+r=$?
+if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect with PKCS#11 URI and provider combination" \
+ "failed (exit code $r)"
+fi
+
+trace "Regress: Missing provider in PKCS11URI option"
+${SSH} -F $OBJ/ssh_proxy \
+ -o IdentityFile=\"pkcs11:token=segfault\" somehost exit 5
+r=$?
+if [ $r -eq 139 ]; then
+ fail "FAIL: ssh connect with missing provider_id from configuration option" \
+ "crashed (exit code $r)"
+fi
+
+
+trace "SSH Agent can work with PKCS#11 URI"
+trace "start the agent"
+eval `${SSHAGENT} -s` > /dev/null
+
+r=$?
+if [ $r -ne 0 ]; then
+ fail "could not start ssh-agent: exit code $r"
+else
+ trace "add whole provider to agent"
+ echo ${TEST_SSH_PIN} | notty ${SSHADD} \
+ "pkcs11:?module-path=${TEST_SSH_PKCS11}" #> /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL: ssh-add failed with whole provider: exit code $r"
+ fi
+
+ trace " pkcs11 list via agent (all keys)"
+ ${SSHADD} -l > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL: ssh-add -l failed with whole provider: exit code $r"
+ fi
+
+ trace " pkcs11 connect via agent (all keys)"
+ ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+ r=$?
+ if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect failed with whole provider (exit code $r)"
+ fi
+
+ trace " remove pkcs11 keys (all keys)"
+ ${SSHADD} -d "pkcs11:?module-path=${TEST_SSH_PKCS11}" > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL: ssh-add -d failed with whole provider: exit code $r"
+ fi
+
+ trace "add only RSA key to the agent"
+ echo ${TEST_SSH_PIN} | notty ${SSHADD} \
+ "pkcs11:id=%${ID1}?module-path=${TEST_SSH_PKCS11}" > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL ssh-add failed with RSA key: exit code $r"
+ fi
+
+ trace " pkcs11 connect via agent (RSA key)"
+ ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+ r=$?
+ if [ $r -ne 5 ]; then
+ fail "FAIL: ssh connect failed with RSA key (exit code $r)"
+ fi
+
+ trace " remove RSA pkcs11 key"
+ ${SSHADD} -d "pkcs11:id=%${ID1}?module-path=${TEST_SSH_PKCS11}" \
+ > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL: ssh-add -d failed with RSA key: exit code $r"
+ fi
+
+ trace "add only ECDSA key to the agent"
+ echo ${TEST_SSH_PIN} | notty ${SSHADD} \
+ "pkcs11:id=%${ID2}?module-path=${TEST_SSH_PKCS11}" > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL: ssh-add failed with second key: exit code $r"
+ fi
+
+ trace " pkcs11 connect via agent (ECDSA key should fail)"
+ ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+ r=$?
+ if [ $r -eq 5 ]; then
+ fail "FAIL: ssh connect passed with ECDSA key (should fail)"
+ fi
+
+ trace "add also the RSA key to the agent"
+ echo ${TEST_SSH_PIN} | notty ${SSHADD} \
+ "pkcs11:id=%${ID1}?module-path=${TEST_SSH_PKCS11}" > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "FAIL: ssh-add failed with first key: exit code $r"
+ fi
+
+ trace " remove ECDSA pkcs11 key"
+ ${SSHADD} -d "pkcs11:id=%${ID2}?module-path=${TEST_SSH_PKCS11}" \
+ > /dev/null 2>&1
+ r=$?
+ if [ $r -ne 0 ]; then
+ fail "ssh-add -d failed with ECDSA key: exit code $r"
+ fi
+
+ trace " remove already-removed pkcs11 key should fail"
+ ${SSHADD} -d "pkcs11:id=%${ID2}?module-path=${TEST_SSH_PKCS11}" \
+ > /dev/null 2>&1
+ r=$?
+ if [ $r -eq 0 ]; then
+ fail "FAIL: ssh-add -d passed with non-existing key (should fail)"
+ fi
+
+ trace " pkcs11 connect via agent (the RSA key should be still usable)"
+ ${SSH} -F $OBJ/ssh_proxy somehost exit 5
+ r=$?
+ if [ $r -ne 5 ]; then
+ fail "ssh connect failed with RSA key (after removing ECDSA): exit code $r"
+ fi
+
+ trace "kill agent"
+ ${SSHAGENT} -k > /dev/null
+fi
diff --git a/regress/unittests/Makefile b/regress/unittests/Makefile
index 4e56e110..2690ebeb 100644
--- a/regress/unittests/Makefile
+++ b/regress/unittests/Makefile
@@ -2,6 +2,6 @@
REGRESS_FAIL_EARLY?= yes
SUBDIR= test_helper sshbuf sshkey bitmap kex hostkeys utf8 match conversion
-SUBDIR+=authopt misc sshsig
+SUBDIR+=authopt misc sshsig pkcs11
.include <bsd.subdir.mk>
diff --git a/regress/unittests/pkcs11/tests.c b/regress/unittests/pkcs11/tests.c
new file mode 100644
index 00000000..b637cb13
--- /dev/null
+++ b/regress/unittests/pkcs11/tests.c
@@ -0,0 +1,337 @@
+/*
+ * Copyright (c) 2017 Red Hat
+ *
+ * Authors: Jakub Jelen <jjelen@redhat.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "includes.h"
+
+#include <locale.h>
+#include <string.h>
+
+#include "../test_helper/test_helper.h"
+
+#include "sshbuf.h"
+#include "ssh-pkcs11-uri.h"
+
+#define EMPTY_URI compose_uri(NULL, 0, NULL, NULL, NULL, NULL, NULL, NULL)
+
+/* prototypes are not public -- specify them here internally for tests */
+struct sshbuf *percent_encode(const char *, size_t, char *);
+int percent_decode(char *, char **);
+
+void
+compare_uri(struct pkcs11_uri *a, struct pkcs11_uri *b)
+{
+ ASSERT_PTR_NE(a, NULL);
+ ASSERT_PTR_NE(b, NULL);
+ ASSERT_SIZE_T_EQ(a->id_len, b->id_len);
+ ASSERT_MEM_EQ(a->id, b->id, a->id_len);
+ if (b->object != NULL)
+ ASSERT_STRING_EQ(a->object, b->object);
+ else /* both should be null */
+ ASSERT_PTR_EQ(a->object, b->object);
+ if (b->module_path != NULL)
+ ASSERT_STRING_EQ(a->module_path, b->module_path);
+ else /* both should be null */
+ ASSERT_PTR_EQ(a->module_path, b->module_path);
+ if (b->token != NULL)
+ ASSERT_STRING_EQ(a->token, b->token);
+ else /* both should be null */
+ ASSERT_PTR_EQ(a->token, b->token);
+ if (b->manuf != NULL)
+ ASSERT_STRING_EQ(a->manuf, b->manuf);
+ else /* both should be null */
+ ASSERT_PTR_EQ(a->manuf, b->manuf);
+ if (b->lib_manuf != NULL)
+ ASSERT_STRING_EQ(a->lib_manuf, b->lib_manuf);
+ else /* both should be null */
+ ASSERT_PTR_EQ(a->lib_manuf, b->lib_manuf);
+}
+
+void
+check_parse_rv(char *uri, struct pkcs11_uri *expect, int expect_rv)
+{
+ char *buf = NULL, *str;
+ struct pkcs11_uri *pkcs11uri = NULL;
+ int rv;
+
+ if (expect_rv == 0)
+ str = "Valid";
+ else
+ str = "Invalid";
+ asprintf(&buf, "%s PKCS#11 URI parsing: %s", str, uri);
+ TEST_START(buf);
+ free(buf);
+ pkcs11uri = pkcs11_uri_init();
+ rv = pkcs11_uri_parse(uri, pkcs11uri);
+ ASSERT_INT_EQ(rv, expect_rv);
+ if (rv == 0) /* in case of failure result is undefined */
+ compare_uri(pkcs11uri, expect);
+ pkcs11_uri_cleanup(pkcs11uri);
+ free(expect);
+ TEST_DONE();
+}
+
+void
+check_parse(char *uri, struct pkcs11_uri *expect)
+{
+ check_parse_rv(uri, expect, 0);
+}
+
+struct pkcs11_uri *
+compose_uri(unsigned char *id, size_t id_len, char *token, char *lib_manuf,
+ char *manuf, char *module_path, char *object, char *pin)
+{
+ struct pkcs11_uri *uri = pkcs11_uri_init();
+ if (id_len > 0) {
+ uri->id_len = id_len;
+ uri->id = id;
+ }
+ uri->module_path = module_path;
+ uri->token = token;
+ uri->lib_manuf = lib_manuf;
+ uri->manuf = manuf;
+ uri->object = object;
+ uri->pin = pin;
+ return uri;
+}
+
+static void
+test_parse_valid(void)
+{
+ /* path arguments */
+ check_parse("pkcs11:id=%01",
+ compose_uri("\x01", 1, NULL, NULL, NULL, NULL, NULL, NULL));
+ check_parse("pkcs11:id=%00%01",
+ compose_uri("\x00\x01", 2, NULL, NULL, NULL, NULL, NULL, NULL));
+ check_parse("pkcs11:token=SSH%20Keys",
+ compose_uri(NULL, 0, "SSH Keys", NULL, NULL, NULL, NULL, NULL));
+ check_parse("pkcs11:library-manufacturer=OpenSC",
+ compose_uri(NULL, 0, NULL, "OpenSC", NULL, NULL, NULL, NULL));
+ check_parse("pkcs11:manufacturer=piv_II",
+ compose_uri(NULL, 0, NULL, NULL, "piv_II", NULL, NULL, NULL));
+ check_parse("pkcs11:object=SIGN%20Key",
+ compose_uri(NULL, 0, NULL, NULL, NULL, NULL, "SIGN Key", NULL));
+ /* query arguments */
+ check_parse("pkcs11:?module-path=/usr/lib64/p11-kit-proxy.so",
+ compose_uri(NULL, 0, NULL, NULL, NULL, "/usr/lib64/p11-kit-proxy.so", NULL, NULL));
+ check_parse("pkcs11:?pin-value=123456",
+ compose_uri(NULL, 0, NULL, NULL, NULL, NULL, NULL, "123456"));
+
+ /* combinations */
+ /* ID SHOULD be percent encoded */
+ check_parse("pkcs11:token=SSH%20Key;id=0",
+ compose_uri("0", 1, "SSH Key", NULL, NULL, NULL, NULL, NULL));
+ check_parse(
+ "pkcs11:manufacturer=CAC?module-path=/usr/lib64/p11-kit-proxy.so",
+ compose_uri(NULL, 0, NULL, NULL, "CAC",
+ "/usr/lib64/p11-kit-proxy.so", NULL, NULL));
+ check_parse(
+ "pkcs11:object=RSA%20Key?module-path=/usr/lib64/pkcs11/opencryptoki.so",
+ compose_uri(NULL, 0, NULL, NULL, NULL,
+ "/usr/lib64/pkcs11/opencryptoki.so", "RSA Key", NULL));
+ check_parse("pkcs11:?module-path=/usr/lib64/p11-kit-proxy.so&pin-value=123456",
+ compose_uri(NULL, 0, NULL, NULL, NULL, "/usr/lib64/p11-kit-proxy.so", NULL, "123456"));
+
+ /* empty path component matches everything */
+ check_parse("pkcs11:", EMPTY_URI);
+
+ /* empty string is a valid to match against (and different from NULL) */
+ check_parse("pkcs11:token=",
+ compose_uri(NULL, 0, "", NULL, NULL, NULL, NULL, NULL));
+ /* Percent character needs to be percent-encoded */
+ check_parse("pkcs11:token=%25",
+ compose_uri(NULL, 0, "%", NULL, NULL, NULL, NULL, NULL));
+}
+
+static void
+test_parse_invalid(void)
+{
+ /* Invalid percent encoding */
+ check_parse_rv("pkcs11:id=%0", EMPTY_URI, -1);
+ /* Invalid percent encoding */
+ check_parse_rv("pkcs11:id=%ZZ", EMPTY_URI, -1);
+ /* Space MUST be percent encoded -- XXX not enforced yet */
+ check_parse("pkcs11:token=SSH Keys",
+ compose_uri(NULL, 0, "SSH Keys", NULL, NULL, NULL, NULL, NULL));
+ /* MUST NOT contain duplicate attributes of the same name */
+ check_parse_rv("pkcs11:id=%01;id=%02", EMPTY_URI, -1);
+ /* MUST NOT contain duplicate attributes of the same name */
+ check_parse_rv("pkcs11:?pin-value=111111&pin-value=123456", EMPTY_URI, -1);
+ /* Unrecognized attribute in path are ignored with log message */
+ check_parse("pkcs11:key_name=SSH", EMPTY_URI);
+ /* Unrecognized attribute in query SHOULD be ignored */
+ check_parse("pkcs11:?key_name=SSH", EMPTY_URI);
+}
+
+void
+check_gen(char *expect, struct pkcs11_uri *uri)
+{
+ char *buf = NULL, *uri_str;
+
+ asprintf(&buf, "Valid PKCS#11 URI generation: %s", expect);
+ TEST_START(buf);
+ free(buf);
+ uri_str = pkcs11_uri_get(uri);
+ ASSERT_PTR_NE(uri_str, NULL);
+ ASSERT_STRING_EQ(uri_str, expect);
+ free(uri_str);
+ TEST_DONE();
+}
+
+static void
+test_generate_valid(void)
+{
+ /* path arguments */
+ check_gen("pkcs11:id=%01",
+ compose_uri("\x01", 1, NULL, NULL, NULL, NULL, NULL, NULL));
+ check_gen("pkcs11:id=%00%01",
+ compose_uri("\x00\x01", 2, NULL, NULL, NULL, NULL, NULL, NULL));
+ check_gen("pkcs11:token=SSH%20Keys", /* space must be percent encoded */
+ compose_uri(NULL, 0, "SSH Keys", NULL, NULL, NULL, NULL, NULL));
+ /* library-manufacturer is not implmented now */
+ /*check_gen("pkcs11:library-manufacturer=OpenSC",
+ compose_uri(NULL, 0, NULL, "OpenSC", NULL, NULL, NULL, NULL));*/
+ check_gen("pkcs11:manufacturer=piv_II",
+ compose_uri(NULL, 0, NULL, NULL, "piv_II", NULL, NULL, NULL));
+ check_gen("pkcs11:object=RSA%20Key",
+ compose_uri(NULL, 0, NULL, NULL, NULL, NULL, "RSA Key", NULL));
+ /* query arguments */
+ check_gen("pkcs11:?module-path=/usr/lib64/p11-kit-proxy.so",
+ compose_uri(NULL, 0, NULL, NULL, NULL, "/usr/lib64/p11-kit-proxy.so", NULL, NULL));
+
+ /* combinations */
+ check_gen("pkcs11:id=%02;token=SSH%20Keys",
+ compose_uri("\x02", 1, "SSH Keys", NULL, NULL, NULL, NULL, NULL));
+ check_gen("pkcs11:id=%EE%02?module-path=/usr/lib64/p11-kit-proxy.so",
+ compose_uri("\xEE\x02", 2, NULL, NULL, NULL, "/usr/lib64/p11-kit-proxy.so", NULL, NULL));
+ check_gen("pkcs11:object=Encryption%20Key;manufacturer=piv_II",
+ compose_uri(NULL, 0, NULL, NULL, "piv_II", NULL, "Encryption Key", NULL));
+
+ /* empty path component matches everything */
+ check_gen("pkcs11:", EMPTY_URI);
+
+}
+
+void
+check_encode(char *source, size_t len, char *allow_list, char *expect)
+{
+ char *buf = NULL;
+ struct sshbuf *b;
+
+ asprintf(&buf, "percent_encode: expected %s", expect);
+ TEST_START(buf);
+ free(buf);
+
+ b = percent_encode(source, len, allow_list);
+ ASSERT_STRING_EQ(sshbuf_ptr(b), expect);
+ sshbuf_free(b);
+ TEST_DONE();
+}
+
+static void
+test_percent_encode_multibyte(void)
+{
+ /* SHOULD be encoded as octets according to the UTF-8 character encoding */
+
+ /* multi-byte characters are "for free" */
+ check_encode("$", 1, "", "%24");
+ check_encode("¢", 2, "", "%C2%A2");
+ check_encode("€", 3, "", "%E2%82%AC");
+ check_encode("𐍈", 4, "", "%F0%90%8D%88");
+
+ /* CK_UTF8CHAR is unsigned char (1 byte) */
+ /* labels SHOULD be normalized to NFC [UAX15] */
+
+}
+
+static void
+test_percent_encode(void)
+{
+ /* Without allow list encodes everything (for CKA_ID) */
+ check_encode("A*", 2, "", "%41%2A");
+ check_encode("\x00", 1, "", "%00");
+ check_encode("\x7F", 1, "", "%7F");
+ check_encode("\x80", 1, "", "%80");
+ check_encode("\xff", 1, "", "%FF");
+
+ /* Default allow list encodes anything but safe letters */
+ check_encode("test" "\x00" "0alpha", 11, PKCS11_URI_WHITELIST,
+ "test%000alpha");
+ check_encode(" ", 1, PKCS11_URI_WHITELIST,
+ "%20"); /* Space MUST be percent encoded */
+ check_encode("/", 1, PKCS11_URI_WHITELIST,
+ "%2F"); /* '/' delimiter MUST be percent encoded (in the path) */
+ check_encode("?", 1, PKCS11_URI_WHITELIST,
+ "%3F"); /* delimiter '?' MUST be percent encoded (in the path) */
+ check_encode("#", 1, PKCS11_URI_WHITELIST,
+ "%23"); /* '#' MUST be always percent encoded */
+ check_encode("key=value;separator?query&amp;#anch", 35, PKCS11_URI_WHITELIST,
+ "key%3Dvalue%3Bseparator%3Fquery%26amp%3B%23anch");
+
+ /* Components in query can have '/' unencoded (useful for paths) */
+ check_encode("/path/to.file", 13, PKCS11_URI_WHITELIST "/",
+ "/path/to.file");
+}
+
+void
+check_decode(char *source, char *expect, int expect_len)
+{
+ char *buf = NULL, *out = NULL;
+ int rv;
+
+ asprintf(&buf, "percent_decode: %s", source);
+ TEST_START(buf);
+ free(buf);
+
+ rv = percent_decode(source, &out);
+ ASSERT_INT_EQ(rv, expect_len);
+ if (rv >= 0)
+ ASSERT_MEM_EQ(out, expect, expect_len);
+ free(out);
+ TEST_DONE();
+}
+
+static void
+test_percent_decode(void)
+{
+ /* simple valid cases */
+ check_decode("%00", "\x00", 1);
+ check_decode("%FF", "\xFF", 1);
+
+ /* normal strings shold be kept intact */
+ check_decode("strings are left", "strings are left", 16);
+ check_decode("10%25 of trees", "10% of trees", 12);
+
+ /* make sure no more than 2 bytes are parsed */
+ check_decode("%222", "\x22" "2", 2);
+
+ /* invalid expects failure */
+ check_decode("%0", "", -1);
+ check_decode("%Z", "", -1);
+ check_decode("%FG", "", -1);
+}
+
+void
+tests(void)
+{
+ test_percent_encode();
+ test_percent_encode_multibyte();
+ test_percent_decode();
+ test_parse_valid();
+ test_parse_invalid();
+ test_generate_valid();
+}
diff --git a/ssh-add.c b/ssh-add.c
index 8057eb1f..0c470e32 100644
--- a/ssh-add.c
+++ b/ssh-add.c
@@ -67,6 +67,7 @@
#include "digest.h"
#include "ssh-sk.h"
#include "sk-api.h"
+#include "ssh-pkcs11-uri.h"
/* argv0 */
extern char *__progname;
@@ -193,6 +194,32 @@ delete_all(int agent_fd, int qflag)
return ret;
}
+#ifdef ENABLE_PKCS11
+static int update_card(int, int, const char *, int, char *);
+
+int
+update_pkcs11_uri(int agent_fd, int adding, const char *pkcs11_uri, int qflag)
+{
+ char *pin = NULL;
+ struct pkcs11_uri *uri;
+
+ /* dry-run parse to make sure the URI is valid and to report errors */
+ uri = pkcs11_uri_init();
+ if (pkcs11_uri_parse((char *) pkcs11_uri, uri) != 0)
+ fatal("Failed to parse PKCS#11 URI");
+ if (uri->pin != NULL) {
+ pin = strdup(uri->pin);
+ if (pin == NULL) {
+ fatal("Failed to dupplicate string");
+ }
+ /* pin is freed in the update_card() */
+ }
+ pkcs11_uri_cleanup(uri);
+
+ return update_card(agent_fd, adding, pkcs11_uri, qflag, pin);
+}
+#endif
+
static int
add_file(int agent_fd, const char *filename, int key_only, int qflag,
const char *skprovider)
@@ -402,12 +429,11 @@ add_file(int agent_fd, const char *filename, int key_only, int qflag,
}
static int
-update_card(int agent_fd, int add, const char *id, int qflag)
+update_card(int agent_fd, int add, const char *id, int qflag, char *pin)
{
- char *pin = NULL;
int r, ret = -1;
- if (add) {
+ if (add && pin == NULL) {
if ((pin = read_passphrase("Enter passphrase for PKCS#11: ",
RP_ALLOW_STDIN)) == NULL)
return -1;
@@ -591,6 +617,13 @@ static int
do_file(int agent_fd, int deleting, int key_only, char *file, int qflag,
const char *skprovider)
{
+#ifdef ENABLE_PKCS11
+ if (strlen(file) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(file, PKCS11_URI_SCHEME,
+ strlen(PKCS11_URI_SCHEME)) == 0) {
+ return update_pkcs11_uri(agent_fd, !deleting, file, qflag);
+ }
+#endif
if (deleting) {
if (delete_file(agent_fd, file, key_only, qflag) == -1)
return -1;
@@ -773,7 +806,7 @@ main(int argc, char **argv)
}
if (pkcs11provider != NULL) {
if (update_card(agent_fd, !deleting, pkcs11provider,
- qflag) == -1)
+ qflag, NULL) == -1)
ret = 1;
goto done;
}
diff --git a/ssh-agent.c b/ssh-agent.c
index 7eb6f0dc..27d8e4af 100644
--- a/ssh-agent.c
+++ b/ssh-agent.c
@@ -641,10 +641,72 @@ no_identities(SocketEntry *e)
}
#ifdef ENABLE_PKCS11
+static char *
+sanitize_pkcs11_provider(const char *provider)
+{
+ struct pkcs11_uri *uri = NULL;
+ char *sane_uri, *module_path = NULL; /* default path */
+ char canonical_provider[PATH_MAX];
+
+ if (provider == NULL)
+ return NULL;
+
+ if (strlen(provider) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(provider, PKCS11_URI_SCHEME,
+ strlen(PKCS11_URI_SCHEME)) == 0) {
+ /* PKCS#11 URI */
+ uri = pkcs11_uri_init();
+ if (uri == NULL) {
+ error("Failed to init PKCS#11 URI");
+ return NULL;
+ }
+
+ if (pkcs11_uri_parse(provider, uri) != 0) {
+ error("Failed to parse PKCS#11 URI");
+ return NULL;
+ }
+ /* validate also provider from URI */
+ if (uri->module_path)
+ module_path = strdup(uri->module_path);
+ } else
+ module_path = strdup(provider); /* simple path */
+
+ if (module_path != NULL) { /* do not validate default NULL path in URI */
+ if (realpath(module_path, canonical_provider) == NULL) {
+ verbose("failed PKCS#11 provider \"%.100s\": realpath: %s",
+ module_path, strerror(errno));
+ free(module_path);
+ pkcs11_uri_cleanup(uri);
+ return NULL;
+ }
+ free(module_path);
+ if (match_pattern_list(canonical_provider, allowed_providers, 0) != 1) {
+ verbose("refusing PKCS#11 provider \"%.100s\": "
+ "not allowed", canonical_provider);
+ pkcs11_uri_cleanup(uri);
+ return NULL;
+ }
+
+ /* copy verified and sanitized provider path back to the uri */
+ if (uri) {
+ free(uri->module_path);
+ uri->module_path = xstrdup(canonical_provider);
+ }
+ }
+
+ if (uri) {
+ sane_uri = pkcs11_uri_get(uri);
+ pkcs11_uri_cleanup(uri);
+ return sane_uri;
+ } else {
+ return xstrdup(canonical_provider); /* simple path */
+ }
+}
+
static void
process_add_smartcard_key(SocketEntry *e)
{
- char *provider = NULL, *pin = NULL, canonical_provider[PATH_MAX];
+ char *provider = NULL, *pin = NULL, *sane_uri = NULL;
char **comments = NULL;
int r, i, count = 0, success = 0, confirm = 0;
u_int seconds;
@@ -681,33 +743,28 @@ process_add_smartcard_key(SocketEntry *e)
goto send;
}
}
- if (realpath(provider, canonical_provider) == NULL) {
- verbose("failed PKCS#11 add of \"%.100s\": realpath: %s",
- provider, strerror(errno));
- goto send;
- }
- if (match_pattern_list(canonical_provider, allowed_providers, 0) != 1) {
- verbose("refusing PKCS#11 add of \"%.100s\": "
- "provider not allowed", canonical_provider);
+
+ sane_uri = sanitize_pkcs11_provider(provider);
+ if (sane_uri == NULL)
goto send;
- }
- debug("%s: add %.100s", __func__, canonical_provider);
+
if (lifetime && !death)
death = monotime() + lifetime;
- count = pkcs11_add_provider(canonical_provider, pin, &keys, &comments);
+ debug("%s: add %.100s", __func__, sane_uri);
+ count = pkcs11_add_provider(sane_uri, pin, &keys, &comments);
for (i = 0; i < count; i++) {
k = keys[i];
if (lookup_identity(k) == NULL) {
id = xcalloc(1, sizeof(Identity));
id->key = k;
keys[i] = NULL; /* transferred */
- id->provider = xstrdup(canonical_provider);
+ id->provider = xstrdup(sane_uri);
if (*comments[i] != '\0') {
id->comment = comments[i];
comments[i] = NULL; /* transferred */
} else {
- id->comment = xstrdup(canonical_provider);
+ id->comment = xstrdup(sane_uri);
}
id->death = death;
id->confirm = confirm;
@@ -721,6 +778,7 @@ process_add_smartcard_key(SocketEntry *e)
send:
free(pin);
free(provider);
+ free(sane_uri);
free(keys);
free(comments);
send_status(e, success);
@@ -729,7 +787,7 @@ send:
static void
process_remove_smartcard_key(SocketEntry *e)
{
- char *provider = NULL, *pin = NULL, canonical_provider[PATH_MAX];
+ char *provider = NULL, *pin = NULL, *sane_uri = NULL;
int r, success = 0;
Identity *id, *nxt;
@@ -740,30 +798,29 @@ process_remove_smartcard_key(SocketEntry *e)
}
free(pin);
- if (realpath(provider, canonical_provider) == NULL) {
- verbose("failed PKCS#11 add of \"%.100s\": realpath: %s",
- provider, strerror(errno));
+ sane_uri = sanitize_pkcs11_provider(provider);
+ if (sane_uri == NULL)
goto send;
- }
- debug("%s: remove %.100s", __func__, canonical_provider);
+ debug("%s: remove %.100s", __func__, sane_uri);
for (id = TAILQ_FIRST(&idtab->idlist); id; id = nxt) {
nxt = TAILQ_NEXT(id, next);
/* Skip file--based keys */
if (id->provider == NULL)
continue;
- if (!strcmp(canonical_provider, id->provider)) {
+ if (!strcmp(sane_uri, id->provider)) {
TAILQ_REMOVE(&idtab->idlist, id, next);
free_identity(id);
idtab->nentries--;
}
}
- if (pkcs11_del_provider(canonical_provider) == 0)
+ if (pkcs11_del_provider(sane_uri) == 0)
success = 1;
else
error("%s: pkcs11_del_provider failed", __func__);
send:
free(provider);
+ free(sane_uri);
send_status(e, success);
}
#endif /* ENABLE_PKCS11 */
diff --git a/ssh-keygen.c b/ssh-keygen.c
index 0d6ed1ff..182f4f2b 100644
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@@ -855,8 +855,11 @@ do_download(struct passwd *pw)
free(fp);
} else {
(void) sshkey_write(keys[i], stdout); /* XXX check */
- fprintf(stdout, "%s%s\n",
- *(comments[i]) == '\0' ? "" : " ", comments[i]);
+ if (*(comments[i]) != '\0') {
+ fprintf(stdout, " %s", comments[i]);
+ }
+ (void) pkcs11_uri_write(keys[i], stdout);
+ fprintf(stdout, "\n");
}
free(comments[i]);
sshkey_free(keys[i]);
diff --git a/ssh-pkcs11-client.c b/ssh-pkcs11-client.c
index 8a0ffef5..ead8a562 100644
--- a/ssh-pkcs11-client.c
+++ b/ssh-pkcs11-client.c
@@ -323,6 +323,8 @@ pkcs11_add_provider(char *name, char *pin, struct sshkey ***keysp,
u_int nkeys, i;
struct sshbuf *msg;
+ debug("%s: called, name = %s", __func__, name);
+
if (fd < 0 && pkcs11_start_helper() < 0)
return (-1);
@@ -342,6 +344,7 @@ pkcs11_add_provider(char *name, char *pin, struct sshkey ***keysp,
*keysp = xcalloc(nkeys, sizeof(struct sshkey *));
if (labelsp)
*labelsp = xcalloc(nkeys, sizeof(char *));
+ debug("%s: nkeys = %u", __func__, nkeys);
for (i = 0; i < nkeys; i++) {
/* XXX clean up properly instead of fatal() */
if ((r = sshbuf_get_string(msg, &blob, &blen)) != 0 ||
diff --git a/ssh-pkcs11-uri.c b/ssh-pkcs11-uri.c
new file mode 100644
index 00000000..e1a7b4e0
--- /dev/null
+++ b/ssh-pkcs11-uri.c
@@ -0,0 +1,425 @@
+/*
+ * Copyright (c) 2017 Red Hat
+ *
+ * Authors: Jakub Jelen <jjelen@redhat.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "includes.h"
+
+#ifdef ENABLE_PKCS11
+
+#include <stdio.h>
+#include <string.h>
+
+#include "sshkey.h"
+#include "sshbuf.h"
+#include "log.h"
+
+#define CRYPTOKI_COMPAT
+#include "pkcs11.h"
+
+#include "ssh-pkcs11-uri.h"
+
+#define PKCS11_URI_PATH_SEPARATOR ";"
+#define PKCS11_URI_QUERY_SEPARATOR "&"
+#define PKCS11_URI_VALUE_SEPARATOR "="
+#define PKCS11_URI_ID "id"
+#define PKCS11_URI_TOKEN "token"
+#define PKCS11_URI_OBJECT "object"
+#define PKCS11_URI_LIB_MANUF "library-manufacturer"
+#define PKCS11_URI_MANUF "manufacturer"
+#define PKCS11_URI_MODULE_PATH "module-path"
+#define PKCS11_URI_PIN_VALUE "pin-value"
+
+/* Keyword tokens. */
+typedef enum {
+ pId, pToken, pObject, pLibraryManufacturer, pManufacturer, pModulePath,
+ pPinValue, pBadOption
+} pkcs11uriOpCodes;
+
+/* Textual representation of the tokens. */
+static struct {
+ const char *name;
+ pkcs11uriOpCodes opcode;
+} keywords[] = {
+ { PKCS11_URI_ID, pId },
+ { PKCS11_URI_TOKEN, pToken },
+ { PKCS11_URI_OBJECT, pObject },
+ { PKCS11_URI_LIB_MANUF, pLibraryManufacturer },
+ { PKCS11_URI_MANUF, pManufacturer },
+ { PKCS11_URI_MODULE_PATH, pModulePath },
+ { PKCS11_URI_PIN_VALUE, pPinValue },
+ { NULL, pBadOption }
+};
+
+static pkcs11uriOpCodes
+parse_token(const char *cp)
+{
+ u_int i;
+
+ for (i = 0; keywords[i].name; i++)
+ if (strncasecmp(cp, keywords[i].name,
+ strlen(keywords[i].name)) == 0)
+ return keywords[i].opcode;
+
+ return pBadOption;
+}
+
+int
+percent_decode(char *data, char **outp)
+{
+ char tmp[3];
+ char *out, *tmp_end;
+ char *p = data;
+ long value;
+ size_t outlen = 0;
+
+ out = malloc(strlen(data)+1); /* upper bound */
+ if (out == NULL)
+ return -1;
+ while (*p != '\0') {
+ switch (*p) {
+ case '%':
+ p++;
+ if (*p == '\0')
+ goto fail;
+ tmp[0] = *p++;
+ if (*p == '\0')
+ goto fail;
+ tmp[1] = *p++;
+ tmp[2] = '\0';
+ tmp_end = NULL;
+ value = strtol(tmp, &tmp_end, 16);
+ if (tmp_end != tmp+2)
+ goto fail;
+ else
+ out[outlen++] = (char) value;
+ break;
+ default:
+ out[outlen++] = *p++;
+ break;
+ }
+ }
+
+ /* zero terminate */
+ out[outlen] = '\0';
+ *outp = out;
+ return outlen;
+fail:
+ free(out);
+ return -1;
+}
+
+struct sshbuf *
+percent_encode(const char *data, size_t length, const char *allow_list)
+{
+ struct sshbuf *b = NULL;
+ char tmp[4], *cp;
+ size_t i;
+
+ if ((b = sshbuf_new()) == NULL)
+ return NULL;
+ for (i = 0; i < length; i++) {
+ cp = strchr(allow_list, data[i]);
+ /* if c is specified as '\0' pointer to terminator is returned !! */
+ if (cp != NULL && *cp != '\0') {
+ if (sshbuf_put(b, &data[i], 1) != 0)
+ goto err;
+ } else
+ if (snprintf(tmp, 4, "%%%02X", (unsigned char) data[i]) < 3
+ || sshbuf_put(b, tmp, 3) != 0)
+ goto err;
+ }
+ if (sshbuf_put(b, "\0", 1) == 0)
+ return b;
+err:
+ sshbuf_free(b);
+ return NULL;
+}
+
+char *
+pkcs11_uri_append(char *part, const char *separator, const char *key,
+ struct sshbuf *value)
+{
+ char *new_part;
+ size_t size = 0;
+
+ if (value == NULL)
+ return NULL;
+
+ size = asprintf(&new_part,
+ "%s%s%s" PKCS11_URI_VALUE_SEPARATOR "%s",
+ (part != NULL ? part : ""),
+ (part != NULL ? separator : ""),
+ key, sshbuf_ptr(value));
+ sshbuf_free(value);
+ free(part);
+
+ if (size <= 0)
+ return NULL;
+ return new_part;
+}
+
+char *
+pkcs11_uri_get(struct pkcs11_uri *uri)
+{
+ size_t size = 0;
+ char *p = NULL, *path = NULL, *query = NULL;
+
+ /* compose a percent-encoded ID */
+ if (uri->id_len > 0) {
+ struct sshbuf *key_id = percent_encode(uri->id, uri->id_len, "");
+ path = pkcs11_uri_append(path, PKCS11_URI_PATH_SEPARATOR,
+ PKCS11_URI_ID, key_id);
+ if (path == NULL)
+ goto err;
+ }
+
+ /* Write object label */
+ if (uri->object) {
+ struct sshbuf *label = percent_encode(uri->object, strlen(uri->object),
+ PKCS11_URI_WHITELIST);
+ path = pkcs11_uri_append(path, PKCS11_URI_PATH_SEPARATOR,
+ PKCS11_URI_OBJECT, label);
+ if (path == NULL)
+ goto err;
+ }
+
+ /* Write token label */
+ if (uri->token) {
+ struct sshbuf *label = percent_encode(uri->token, strlen(uri->token),
+ PKCS11_URI_WHITELIST);
+ path = pkcs11_uri_append(path, PKCS11_URI_PATH_SEPARATOR,
+ PKCS11_URI_TOKEN, label);
+ if (path == NULL)
+ goto err;
+ }
+
+ /* Write manufacturer */
+ if (uri->manuf) {
+ struct sshbuf *manuf = percent_encode(uri->manuf,
+ strlen(uri->manuf), PKCS11_URI_WHITELIST);
+ path = pkcs11_uri_append(path, PKCS11_URI_PATH_SEPARATOR,
+ PKCS11_URI_MANUF, manuf);
+ if (path == NULL)
+ goto err;
+ }
+
+ /* Write module_path */
+ if (uri->module_path) {
+ struct sshbuf *module = percent_encode(uri->module_path,
+ strlen(uri->module_path), PKCS11_URI_WHITELIST "/");
+ query = pkcs11_uri_append(query, PKCS11_URI_QUERY_SEPARATOR,
+ PKCS11_URI_MODULE_PATH, module);
+ if (query == NULL)
+ goto err;
+ }
+
+ size = asprintf(&p, PKCS11_URI_SCHEME "%s%s%s",
+ path != NULL ? path : "",
+ query != NULL ? "?" : "",
+ query != NULL ? query : "");
+err:
+ free(query);
+ free(path);
+ if (size <= 0)
+ return NULL;
+ return p;
+}
+
+struct pkcs11_uri *
+pkcs11_uri_init()
+{
+ struct pkcs11_uri *d = calloc(1, sizeof(struct pkcs11_uri));
+ return d;
+}
+
+void
+pkcs11_uri_cleanup(struct pkcs11_uri *pkcs11)
+{
+ if (pkcs11 == NULL) {
+ return;
+ }
+
+ free(pkcs11->id);
+ free(pkcs11->module_path);
+ free(pkcs11->token);
+ free(pkcs11->object);
+ free(pkcs11->lib_manuf);
+ free(pkcs11->manuf);
+ if (pkcs11->pin)
+ freezero(pkcs11->pin, strlen(pkcs11->pin));
+ free(pkcs11);
+}
+
+int
+pkcs11_uri_parse(const char *uri, struct pkcs11_uri *pkcs11)
+{
+ char *saveptr1, *saveptr2, *str1, *str2, *tok;
+ int rv = 0, len;
+ char *p = NULL;
+
+ size_t scheme_len = strlen(PKCS11_URI_SCHEME);
+ if (strlen(uri) < scheme_len || /* empty URI matches everything */
+ strncmp(uri, PKCS11_URI_SCHEME, scheme_len) != 0) {
+ error("%s: The '%s' does not look like PKCS#11 URI",
+ __func__, uri);
+ return -1;
+ }
+
+ if (pkcs11 == NULL) {
+ error("%s: Bad arguments. The pkcs11 can't be null", __func__);
+ return -1;
+ }
+
+ /* skip URI schema name */
+ p = strdup(uri);
+ str1 = p;
+
+ /* everything before ? */
+ tok = strtok_r(str1, "?", &saveptr1);
+ if (tok == NULL) {
+ error("%s: pk11-path expected, got EOF", __func__);
+ rv = -1;
+ goto out;
+ }
+
+ /* skip URI schema name:
+ * the scheme ensures that there is at least something before "?"
+ * allowing empty pk11-path. Resulting token at worst pointing to
+ * \0 byte */
+ tok = tok + scheme_len;
+
+ /* parse pk11-path */
+ for (str2 = tok; ; str2 = NULL) {
+ char **charptr, *arg = NULL;
+ pkcs11uriOpCodes opcode;
+ tok = strtok_r(str2, PKCS11_URI_PATH_SEPARATOR, &saveptr2);
+ if (tok == NULL)
+ break;
+ opcode = parse_token(tok);
+ if (opcode != pBadOption)
+ arg = tok + strlen(keywords[opcode].name) + 1; /* separator "=" */
+
+ switch (opcode) {
+ case pId:
+ /* CKA_ID */
+ if (pkcs11->id != NULL) {
+ verbose("%s: The id already set in the PKCS#11 URI",
+ __func__);
+ rv = -1;
+ goto out;
+ }
+ len = percent_decode(arg, &pkcs11->id);
+ if (len <= 0) {
+ verbose("%s: Failed to percent-decode CKA_ID: %s",
+ __func__, arg);
+ rv = -1;
+ goto out;
+ } else
+ pkcs11->id_len = len;
+ debug3("%s: Setting CKA_ID = %s from PKCS#11 URI",
+ __func__, arg);
+ break;
+ case pToken:
+ /* CK_TOKEN_INFO -> label */
+ charptr = &pkcs11->token;
+ parse_string:
+ if (*charptr != NULL) {
+ verbose("%s: The %s already set in the PKCS#11 URI",
+ keywords[opcode].name, __func__);
+ rv = -1;
+ goto out;
+ }
+ percent_decode(arg, charptr);
+ debug3("%s: Setting %s = %s from PKCS#11 URI",
+ __func__, keywords[opcode].name, *charptr);
+ break;
+
+ case pObject:
+ /* CK_TOKEN_INFO -> manufacturerID */
+ charptr = &pkcs11->object;
+ goto parse_string;
+
+ case pManufacturer:
+ /* CK_TOKEN_INFO -> manufacturerID */
+ charptr = &pkcs11->manuf;
+ goto parse_string;
+
+ case pLibraryManufacturer:
+ /* CK_INFO -> manufacturerID */
+ charptr = &pkcs11->lib_manuf;
+ goto parse_string;
+
+ default:
+ /* Unrecognized attribute in the URI path SHOULD be error */
+ verbose("%s: Unknown part of path in PKCS#11 URI: %s",
+ __func__, tok);
+ }
+ }
+
+ tok = strtok_r(NULL, "?", &saveptr1);
+ if (tok == NULL) {
+ goto out;
+ }
+ /* parse pk11-query (optional) */
+ for (str2 = tok; ; str2 = NULL) {
+ char *arg;
+ pkcs11uriOpCodes opcode;
+ tok = strtok_r(str2, PKCS11_URI_QUERY_SEPARATOR, &saveptr2);
+ if (tok == NULL)
+ break;
+ opcode = parse_token(tok);
+ if (opcode != pBadOption)
+ arg = tok + strlen(keywords[opcode].name) + 1; /* separator "=" */
+
+ switch (opcode) {
+ case pModulePath:
+ /* module-path is PKCS11Provider */
+ if (pkcs11->module_path != NULL) {
+ verbose("%s: Multiple module-path attributes are"
+ "not supported the PKCS#11 URI", __func__);
+ rv = -1;
+ goto out;
+ }
+ percent_decode(arg, &pkcs11->module_path);
+ debug3("%s: Setting PKCS11Provider = %s from PKCS#11 URI",
+ __func__, pkcs11->module_path);
+ break;
+
+ case pPinValue:
+ /* pin-value */
+ if (pkcs11->pin != NULL) {
+ verbose("%s: Multiple pin-value attributes are"
+ "not supported the PKCS#11 URI", __func__);
+ rv = -1;
+ goto out;
+ }
+ percent_decode(arg, &pkcs11->pin);
+ debug3("%s: Setting PIN from PKCS#11 URI", __func__);
+ break;
+
+ default:
+ /* Unrecognized attribute in the URI query SHOULD be ignored */
+ verbose("%s: Unknown part of query in PKCS#11 URI: %s",
+ __func__, tok);
+ }
+ }
+out:
+ free(p);
+ return rv;
+}
+
+#endif /* ENABLE_PKCS11 */
diff --git a/ssh-pkcs11-uri.h b/ssh-pkcs11-uri.h
new file mode 100644
index 00000000..942a5a5a
--- /dev/null
+++ b/ssh-pkcs11-uri.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2017 Red Hat
+ *
+ * Authors: Jakub Jelen <jjelen@redhat.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define PKCS11_URI_SCHEME "pkcs11:"
+#define PKCS11_URI_WHITELIST "abcdefghijklmnopqrstuvwxyz" \
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
+ "0123456789_-.()"
+
+struct pkcs11_uri {
+ /* path */
+ char *id;
+ size_t id_len;
+ char *token;
+ char *object;
+ char *lib_manuf;
+ char *manuf;
+ /* query */
+ char *module_path;
+ char *pin; /* Only parsed, but not printed */
+};
+
+struct pkcs11_uri *pkcs11_uri_init();
+void pkcs11_uri_cleanup(struct pkcs11_uri *);
+int pkcs11_uri_parse(const char *, struct pkcs11_uri *);
+struct pkcs11_uri *pkcs11_uri_init();
+char *pkcs11_uri_get(struct pkcs11_uri *uri);
+
diff --git a/ssh-pkcs11.c b/ssh-pkcs11.c
index a302c79c..879fe917 100644
--- a/ssh-pkcs11.c
+++ b/ssh-pkcs11.c
@@ -54,8 +54,8 @@ struct pkcs11_slotinfo {
int logged_in;
};
-struct pkcs11_provider {
- char *name;
+struct pkcs11_module {
+ char *module_path;
void *handle;
CK_FUNCTION_LIST *function_list;
CK_INFO info;
@@ -64,6 +64,13 @@ struct pkcs11_provider {
struct pkcs11_slotinfo *slotinfo;
int valid;
int refcount;
+};
+
+struct pkcs11_provider {
+ char *name;
+ struct pkcs11_module *module; /* can be shared between various providers */
+ int refcount;
+ int valid;
TAILQ_ENTRY(pkcs11_provider) next;
};
@@ -74,6 +81,7 @@ struct pkcs11_key {
CK_ULONG slotidx;
char *keyid;
int keyid_len;
+ char *label;
};
int pkcs11_interactive = 0;
@@ -106,26 +114,63 @@ pkcs11_init(int interactive)
* this is called when a provider gets unregistered.
*/
static void
-pkcs11_provider_finalize(struct pkcs11_provider *p)
+pkcs11_module_finalize(struct pkcs11_module *m)
{
CK_RV rv;
CK_ULONG i;
- debug("pkcs11_provider_finalize: %p refcount %d valid %d",
- p, p->refcount, p->valid);
- if (!p->valid)
+ debug("%s: %p refcount %d valid %d", __func__,
+ m, m->refcount, m->valid);
+ if (!m->valid)
return;
- for (i = 0; i < p->nslots; i++) {
- if (p->slotinfo[i].session &&
- (rv = p->function_list->C_CloseSession(
- p->slotinfo[i].session)) != CKR_OK)
+ for (i = 0; i < m->nslots; i++) {
+ if (m->slotinfo[i].session &&
+ (rv = m->function_list->C_CloseSession(
+ m->slotinfo[i].session)) != CKR_OK)
error("C_CloseSession failed: %lu", rv);
}
- if ((rv = p->function_list->C_Finalize(NULL)) != CKR_OK)
+ if ((rv = m->function_list->C_Finalize(NULL)) != CKR_OK)
error("C_Finalize failed: %lu", rv);
+ m->valid = 0;
+ m->function_list = NULL;
+ dlclose(m->handle);
+}
+
+/*
+ * remove a reference to the pkcs11 module.
+ * called when a provider is unregistered.
+ */
+static void
+pkcs11_module_unref(struct pkcs11_module *m)
+{
+ debug("%s: %p refcount %d", __func__, m, m->refcount);
+ if (--m->refcount <= 0) {
+ pkcs11_module_finalize(m);
+ if (m->valid)
+ error("%s: %p still valid", __func__, m);
+ free(m->slotlist);
+ free(m->slotinfo);
+ free(m->module_path);
+ free(m);
+ }
+}
+
+/*
+ * finalize a provider shared libarary, it's no longer usable.
+ * however, there might still be keys referencing this provider,
+ * so the actuall freeing of memory is handled by pkcs11_provider_unref().
+ * this is called when a provider gets unregistered.
+ */
+static void
+pkcs11_provider_finalize(struct pkcs11_provider *p)
+{
+ debug("%s: %p refcount %d valid %d", __func__,
+ p, p->refcount, p->valid);
+ if (!p->valid)
+ return;
+ pkcs11_module_unref(p->module);
+ p->module = NULL;
p->valid = 0;
- p->function_list = NULL;
- dlclose(p->handle);
}
/*
@@ -135,13 +180,11 @@ pkcs11_provider_finalize(struct pkcs11_provider *p)
static void
pkcs11_provider_unref(struct pkcs11_provider *p)
{
- debug("pkcs11_provider_unref: %p refcount %d", p, p->refcount);
+ debug("%s: %p refcount %d", __func__, p, p->refcount);
if (--p->refcount <= 0) {
- if (p->valid)
- error("pkcs11_provider_unref: %p still valid", p);
free(p->name);
- free(p->slotlist);
- free(p->slotinfo);
+ if (p->module)
+ pkcs11_module_unref(p->module);
free(p);
}
}
@@ -159,6 +202,20 @@ pkcs11_terminate(void)
}
}
+/* lookup provider by module path */
+static struct pkcs11_module *
+pkcs11_provider_lookup_module(char *module_path)
+{
+ struct pkcs11_provider *p;
+
+ TAILQ_FOREACH(p, &pkcs11_providers, next) {
+ debug("check %p %s (%s)", p, p->name, p->module->module_path);
+ if (!strcmp(module_path, p->module->module_path))
+ return (p->module);
+ }
+ return (NULL);
+}
+
/* lookup provider by name */
static struct pkcs11_provider *
pkcs11_provider_lookup(char *provider_id)
@@ -173,19 +230,52 @@ pkcs11_provider_lookup(char *provider_id)
return (NULL);
}
+int pkcs11_del_provider_by_uri(struct pkcs11_uri *);
+
/* unregister provider by name */
int
pkcs11_del_provider(char *provider_id)
+{
+ int rv;
+ struct pkcs11_uri *uri;
+
+ debug("%s: called, provider_id = %s", __func__, provider_id);
+
+ uri = pkcs11_uri_init();
+ if (uri == NULL)
+ fatal("Failed to init PKCS#11 URI");
+
+ if (strlen(provider_id) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(provider_id, PKCS11_URI_SCHEME, strlen(PKCS11_URI_SCHEME)) == 0) {
+ if (pkcs11_uri_parse(provider_id, uri) != 0)
+ fatal("Failed to parse PKCS#11 URI");
+ } else {
+ uri->module_path = strdup(provider_id);
+ }
+
+ rv = pkcs11_del_provider_by_uri(uri);
+ pkcs11_uri_cleanup(uri);
+ return rv;
+}
+
+/* unregister provider by PKCS#11 URI */
+int
+pkcs11_del_provider_by_uri(struct pkcs11_uri *uri)
{
struct pkcs11_provider *p;
+ int rv = -1;
+ char *provider_uri = pkcs11_uri_get(uri);
- if ((p = pkcs11_provider_lookup(provider_id)) != NULL) {
+ debug3("%s(%s): called", __func__, provider_uri);
+
+ if ((p = pkcs11_provider_lookup(provider_uri)) != NULL) {
TAILQ_REMOVE(&pkcs11_providers, p, next);
pkcs11_provider_finalize(p);
pkcs11_provider_unref(p);
- return (0);
+ rv = 0;
}
- return (-1);
+ free(provider_uri);
+ return rv;
}
static RSA_METHOD *rsa_method;
@@ -195,6 +285,55 @@ static EC_KEY_METHOD *ec_key_method;
static int ec_key_idx = 0;
#endif
+/*
+ * This can't be in the ssh-pkcs11-uri, becase we can not depend on
+ * PKCS#11 structures in ssh-agent (using client-helper communication)
+ */
+int
+pkcs11_uri_write(const struct sshkey *key, FILE *f)
+{
+ char *p = NULL;
+ struct pkcs11_uri uri;
+ struct pkcs11_key *k11;
+
+ /* sanity - is it a RSA key with associated app_data? */
+ switch (key->type) {
+ case KEY_RSA:
+ k11 = RSA_get_ex_data(key->rsa, rsa_idx);
+ break;
+#ifdef HAVE_EC_KEY_METHOD_NEW
+ case KEY_ECDSA:
+ k11 = EC_KEY_get_ex_data(key->ecdsa, ec_key_idx);
+ break;
+#endif
+ default:
+ error("Unknown key type %d", key->type);
+ return -1;
+ }
+ if (k11 == NULL) {
+ error("Failed to get ex_data for key type %d", key->type);
+ return (-1);
+ }
+
+ /* omit type -- we are looking for private-public or private-certificate pairs */
+ uri.id = k11->keyid;
+ uri.id_len = k11->keyid_len;
+ uri.token = k11->provider->module->slotinfo[k11->slotidx].token.label;
+ uri.object = k11->label;
+ uri.module_path = k11->provider->module->module_path;
+ uri.lib_manuf = k11->provider->module->info.manufacturerID;
+ uri.manuf = k11->provider->module->slotinfo[k11->slotidx].token.manufacturerID;
+
+ p = pkcs11_uri_get(&uri);
+ /* do not cleanup -- we do not allocate here, only reference */
+ if (p == NULL)
+ return -1;
+
+ fprintf(f, " %s", p);
+ free(p);
+ return 0;
+}
+
/* release a wrapped object */
static void
pkcs11_k11_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx,
@@ -208,6 +347,7 @@ pkcs11_k11_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int idx,
if (k11->provider)
pkcs11_provider_unref(k11->provider);
free(k11->keyid);
+ free(k11->label);
free(k11);
}
@@ -222,8 +362,8 @@ pkcs11_find(struct pkcs11_provider *p, CK_ULONG slotidx, CK_ATTRIBUTE *attr,
CK_RV rv;
int ret = -1;
- f = p->function_list;
- session = p->slotinfo[slotidx].session;
+ f = p->module->function_list;
+ session = p->module->slotinfo[slotidx].session;
if ((rv = f->C_FindObjectsInit(session, attr, nattr)) != CKR_OK) {
error("C_FindObjectsInit failed (nattr %lu): %lu", nattr, rv);
return (-1);
@@ -262,12 +402,12 @@ pkcs11_login_slot(struct pkcs11_provider *provider, struct pkcs11_slotinfo *si,
else {
snprintf(prompt, sizeof(prompt), "Enter PIN for '%s': ",
si->token.label);
- if ((pin = read_passphrase(prompt, RP_ALLOW_EOF)) == NULL) {
+ if ((pin = read_passphrase(prompt, RP_ALLOW_EOF|RP_ALLOW_STDIN)) == NULL) {
debug("%s: no pin specified", __func__);
return (-1); /* bail out */
}
}
- rv = provider->function_list->C_Login(si->session, type, (u_char *)pin,
+ rv = provider->module->function_list->C_Login(si->session, type, (u_char *)pin,
(pin != NULL) ? strlen(pin) : 0);
if (pin != NULL)
freezero(pin, strlen(pin));
@@ -282,13 +422,14 @@ pkcs11_login_slot(struct pkcs11_provider *provider, struct pkcs11_slotinfo *si,
static int
pkcs11_login(struct pkcs11_key *k11, CK_USER_TYPE type)
{
- if (k11 == NULL || k11->provider == NULL || !k11->provider->valid) {
+ if (k11 == NULL || k11->provider == NULL || !k11->provider->valid ||
+ k11->provider->module == NULL || !k11->provider->module->valid) {
error("no pkcs11 (valid) provider found");
return (-1);
}
return pkcs11_login_slot(k11->provider,
- &k11->provider->slotinfo[k11->slotidx], type);
+ &k11->provider->module->slotinfo[k11->slotidx], type);
}
@@ -304,13 +445,14 @@ pkcs11_check_obj_bool_attrib(struct pkcs11_key *k11, CK_OBJECT_HANDLE obj,
*val = 0;
- if (!k11->provider || !k11->provider->valid) {
+ if (!k11->provider || !k11->provider->valid ||
+ !k11->provider->module || !k11->provider->module->valid) {
error("no pkcs11 (valid) provider found");
return (-1);
}
- f = k11->provider->function_list;
- si = &k11->provider->slotinfo[k11->slotidx];
+ f = k11->provider->module->function_list;
+ si = &k11->provider->module->slotinfo[k11->slotidx];
attr.type = type;
attr.pValue = &flag;
@@ -341,13 +483,14 @@ pkcs11_get_key(struct pkcs11_key *k11, CK_MECHANISM_TYPE mech_type)
int always_auth = 0;
int did_login = 0;
- if (!k11->provider || !k11->provider->valid) {
+ if (!k11->provider || !k11->provider->valid ||
+ !k11->provider->module || !k11->provider->module->valid) {
error("no pkcs11 (valid) provider found");
return (-1);
}
- f = k11->provider->function_list;
- si = &k11->provider->slotinfo[k11->slotidx];
+ f = k11->provider->module->function_list;
+ si = &k11->provider->module->slotinfo[k11->slotidx];
if ((si->token.flags & CKF_LOGIN_REQUIRED) && !si->logged_in) {
if (pkcs11_login(k11, CKU_USER) < 0) {
@@ -424,8 +567,8 @@ pkcs11_rsa_private_encrypt(int flen, const u_char *from, u_char *to, RSA *rsa,
return (-1);
}
- f = k11->provider->function_list;
- si = &k11->provider->slotinfo[k11->slotidx];
+ f = k11->provider->module->function_list;
+ si = &k11->provider->module->slotinfo[k11->slotidx];
tlen = RSA_size(rsa);
/* XXX handle CKR_BUFFER_TOO_SMALL */
@@ -469,7 +612,7 @@ pkcs11_rsa_start_wrapper(void)
/* redirect private key operations for rsa key to pkcs11 token */
static int
pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
- CK_ATTRIBUTE *keyid_attrib, RSA *rsa)
+ CK_ATTRIBUTE *keyid_attrib, CK_ATTRIBUTE *label_attrib, RSA *rsa)
{
struct pkcs11_key *k11;
@@ -487,6 +630,12 @@ pkcs11_rsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
}
+ if (label_attrib->ulValueLen > 0 ) {
+ k11->label = xmalloc(label_attrib->ulValueLen+1);
+ memcpy(k11->label, label_attrib->pValue, label_attrib->ulValueLen);
+ k11->label[label_attrib->ulValueLen] = 0;
+ }
+
RSA_set_method(rsa, rsa_method);
RSA_set_ex_data(rsa, rsa_idx, k11);
return (0);
@@ -517,8 +666,8 @@ ecdsa_do_sign(const unsigned char *dgst, int dgst_len, const BIGNUM *inv,
return (NULL);
}
- f = k11->provider->function_list;
- si = &k11->provider->slotinfo[k11->slotidx];
+ f = k11->provider->module->function_list;
+ si = &k11->provider->module->slotinfo[k11->slotidx];
siglen = ECDSA_size(ec);
sig = xmalloc(siglen);
@@ -583,7 +732,7 @@ pkcs11_ecdsa_start_wrapper(void)
static int
pkcs11_ecdsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
- CK_ATTRIBUTE *keyid_attrib, EC_KEY *ec)
+ CK_ATTRIBUTE *keyid_attrib, CK_ATTRIBUTE *label_attrib, EC_KEY *ec)
{
struct pkcs11_key *k11;
@@ -599,6 +748,12 @@ pkcs11_ecdsa_wrap(struct pkcs11_provider *provider, CK_ULONG slotidx,
k11->keyid = xmalloc(k11->keyid_len);
memcpy(k11->keyid, keyid_attrib->pValue, k11->keyid_len);
+ if (label_attrib->ulValueLen > 0 ) {
+ k11->label = xmalloc(label_attrib->ulValueLen+1);
+ memcpy(k11->label, label_attrib->pValue, label_attrib->ulValueLen);
+ k11->label[label_attrib->ulValueLen] = 0;
+ }
+
EC_KEY_set_method(ec, ec_key_method);
EC_KEY_set_ex_data(ec, ec_key_idx, k11);
@@ -635,8 +790,8 @@ pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin,
CK_SESSION_HANDLE session;
int login_required, ret;
- f = p->function_list;
- si = &p->slotinfo[slotidx];
+ f = p->module->function_list;
+ si = &p->module->slotinfo[slotidx];
login_required = si->token.flags & CKF_LOGIN_REQUIRED;
@@ -646,9 +801,9 @@ pkcs11_open_session(struct pkcs11_provider *p, CK_ULONG slotidx, char *pin,
error("pin required");
return (-SSH_PKCS11_ERR_PIN_REQUIRED);
}
- if ((rv = f->C_OpenSession(p->slotlist[slotidx], CKF_RW_SESSION|
+ if ((rv = f->C_OpenSession(p->module->slotlist[slotidx], CKF_RW_SESSION|
CKF_SERIAL_SESSION, NULL, NULL, &session)) != CKR_OK) {
- error("C_OpenSession failed: %lu", rv);
+ error("C_OpenSession failed for slot %lu: %lu", slotidx, rv);
return (-1);
}
if (login_required && pin != NULL && strlen(pin) != 0) {
@@ -684,7 +839,8 @@ static struct sshkey *
pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
CK_OBJECT_HANDLE *obj)
{
- CK_ATTRIBUTE key_attr[3];
+ CK_ATTRIBUTE key_attr[4];
+ int nattr = 4;
CK_SESSION_HANDLE session;
CK_FUNCTION_LIST *f = NULL;
CK_RV rv;
@@ -698,14 +854,15 @@ pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
memset(&key_attr, 0, sizeof(key_attr));
key_attr[0].type = CKA_ID;
- key_attr[1].type = CKA_EC_POINT;
- key_attr[2].type = CKA_EC_PARAMS;
+ key_attr[1].type = CKA_LABEL;
+ key_attr[2].type = CKA_EC_POINT;
+ key_attr[3].type = CKA_EC_PARAMS;
- session = p->slotinfo[slotidx].session;
- f = p->function_list;
+ session = p->module->slotinfo[slotidx].session;
+ f = p->module->function_list;
/* figure out size of the attributes */
- rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
+ rv = f->C_GetAttributeValue(session, *obj, key_attr, nattr);
if (rv != CKR_OK) {
error("C_GetAttributeValue failed: %lu", rv);
return (NULL);
@@ -717,19 +874,19 @@ pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
* ensure that none of the others are zero length.
* XXX assumes CKA_ID is always first.
*/
- if (key_attr[1].ulValueLen == 0 ||
- key_attr[2].ulValueLen == 0) {
+ if (key_attr[2].ulValueLen == 0 ||
+ key_attr[3].ulValueLen == 0) {
error("invalid attribute length");
return (NULL);
}
/* allocate buffers for attributes */
- for (i = 0; i < 3; i++)
+ for (i = 0; i < nattr; i++)
if (key_attr[i].ulValueLen > 0)
key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen);
/* retrieve ID, public point and curve parameters of EC key */
- rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
+ rv = f->C_GetAttributeValue(session, *obj, key_attr, nattr);
if (rv != CKR_OK) {
error("C_GetAttributeValue failed: %lu", rv);
goto fail;
@@ -740,8 +898,8 @@ pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto fail;
}
- attrp = key_attr[2].pValue;
- group = d2i_ECPKParameters(NULL, &attrp, key_attr[2].ulValueLen);
+ attrp = key_attr[3].pValue;
+ group = d2i_ECPKParameters(NULL, &attrp, key_attr[3].ulValueLen);
if (group == NULL) {
ossl_error("d2i_ECPKParameters failed");
goto fail;
@@ -752,13 +910,13 @@ pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto fail;
}
- if (key_attr[1].ulValueLen <= 2) {
+ if (key_attr[2].ulValueLen <= 2) {
error("CKA_EC_POINT too small");
goto fail;
}
- attrp = key_attr[1].pValue;
- octet = d2i_ASN1_OCTET_STRING(NULL, &attrp, key_attr[1].ulValueLen);
+ attrp = key_attr[2].pValue;
+ octet = d2i_ASN1_OCTET_STRING(NULL, &attrp, key_attr[2].ulValueLen);
if (octet == NULL) {
ossl_error("d2i_ASN1_OCTET_STRING failed");
goto fail;
@@ -775,7 +933,7 @@ pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto fail;
}
- if (pkcs11_ecdsa_wrap(p, slotidx, &key_attr[0], ec))
+ if (pkcs11_ecdsa_wrap(p, slotidx, &key_attr[0], &key_attr[1], ec))
goto fail;
key = sshkey_new(KEY_UNSPEC);
@@ -791,7 +949,7 @@ pkcs11_fetch_ecdsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
ec = NULL; /* now owned by key */
fail:
- for (i = 0; i < 3; i++)
+ for (i = 0; i < nattr; i++)
free(key_attr[i].pValue);
if (ec)
EC_KEY_free(ec);
@@ -808,7 +966,8 @@ static struct sshkey *
pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
CK_OBJECT_HANDLE *obj)
{
- CK_ATTRIBUTE key_attr[3];
+ CK_ATTRIBUTE key_attr[4];
+ int nattr = 4;
CK_SESSION_HANDLE session;
CK_FUNCTION_LIST *f = NULL;
CK_RV rv;
@@ -819,14 +978,15 @@ pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
memset(&key_attr, 0, sizeof(key_attr));
key_attr[0].type = CKA_ID;
- key_attr[1].type = CKA_MODULUS;
- key_attr[2].type = CKA_PUBLIC_EXPONENT;
+ key_attr[1].type = CKA_LABEL;
+ key_attr[2].type = CKA_MODULUS;
+ key_attr[3].type = CKA_PUBLIC_EXPONENT;
- session = p->slotinfo[slotidx].session;
- f = p->function_list;
+ session = p->module->slotinfo[slotidx].session;
+ f = p->module->function_list;
/* figure out size of the attributes */
- rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
+ rv = f->C_GetAttributeValue(session, *obj, key_attr, nattr);
if (rv != CKR_OK) {
error("C_GetAttributeValue failed: %lu", rv);
return (NULL);
@@ -838,19 +998,19 @@ pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
* ensure that none of the others are zero length.
* XXX assumes CKA_ID is always first.
*/
- if (key_attr[1].ulValueLen == 0 ||
- key_attr[2].ulValueLen == 0) {
+ if (key_attr[2].ulValueLen == 0 ||
+ key_attr[3].ulValueLen == 0) {
error("invalid attribute length");
return (NULL);
}
/* allocate buffers for attributes */
- for (i = 0; i < 3; i++)
+ for (i = 0; i < nattr; i++)
if (key_attr[i].ulValueLen > 0)
key_attr[i].pValue = xcalloc(1, key_attr[i].ulValueLen);
/* retrieve ID, modulus and public exponent of RSA key */
- rv = f->C_GetAttributeValue(session, *obj, key_attr, 3);
+ rv = f->C_GetAttributeValue(session, *obj, key_attr, nattr);
if (rv != CKR_OK) {
error("C_GetAttributeValue failed: %lu", rv);
goto fail;
@@ -861,8 +1022,8 @@ pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto fail;
}
- rsa_n = BN_bin2bn(key_attr[1].pValue, key_attr[1].ulValueLen, NULL);
- rsa_e = BN_bin2bn(key_attr[2].pValue, key_attr[2].ulValueLen, NULL);
+ rsa_n = BN_bin2bn(key_attr[2].pValue, key_attr[2].ulValueLen, NULL);
+ rsa_e = BN_bin2bn(key_attr[3].pValue, key_attr[3].ulValueLen, NULL);
if (rsa_n == NULL || rsa_e == NULL) {
error("BN_bin2bn failed");
goto fail;
@@ -871,7 +1032,7 @@ pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
fatal("%s: set key", __func__);
rsa_n = rsa_e = NULL; /* transferred */
- if (pkcs11_rsa_wrap(p, slotidx, &key_attr[0], rsa))
+ if (pkcs11_rsa_wrap(p, slotidx, &key_attr[0], &key_attr[1], rsa))
goto fail;
key = sshkey_new(KEY_UNSPEC);
@@ -886,7 +1047,7 @@ pkcs11_fetch_rsa_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
rsa = NULL; /* now owned by key */
fail:
- for (i = 0; i < 3; i++)
+ for (i = 0; i < nattr; i++)
free(key_attr[i].pValue);
RSA_free(rsa);
@@ -897,7 +1058,8 @@ static int
pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
CK_OBJECT_HANDLE *obj, struct sshkey **keyp, char **labelp)
{
- CK_ATTRIBUTE cert_attr[3];
+ CK_ATTRIBUTE cert_attr[4];
+ int nattr = 4;
CK_SESSION_HANDLE session;
CK_FUNCTION_LIST *f = NULL;
CK_RV rv;
@@ -921,14 +1083,15 @@ pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
memset(&cert_attr, 0, sizeof(cert_attr));
cert_attr[0].type = CKA_ID;
- cert_attr[1].type = CKA_SUBJECT;
- cert_attr[2].type = CKA_VALUE;
+ cert_attr[1].type = CKA_LABEL;
+ cert_attr[2].type = CKA_SUBJECT;
+ cert_attr[3].type = CKA_VALUE;
- session = p->slotinfo[slotidx].session;
- f = p->function_list;
+ session = p->module->slotinfo[slotidx].session;
+ f = p->module->function_list;
/* figure out size of the attributes */
- rv = f->C_GetAttributeValue(session, *obj, cert_attr, 3);
+ rv = f->C_GetAttributeValue(session, *obj, cert_attr, nattr);
if (rv != CKR_OK) {
error("C_GetAttributeValue failed: %lu", rv);
return -1;
@@ -940,18 +1103,19 @@ pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
* XXX assumes CKA_ID is always first.
*/
if (cert_attr[1].ulValueLen == 0 ||
- cert_attr[2].ulValueLen == 0) {
+ cert_attr[2].ulValueLen == 0 ||
+ cert_attr[3].ulValueLen == 0) {
error("invalid attribute length");
return -1;
}
/* allocate buffers for attributes */
- for (i = 0; i < 3; i++)
+ for (i = 0; i < nattr; i++)
if (cert_attr[i].ulValueLen > 0)
cert_attr[i].pValue = xcalloc(1, cert_attr[i].ulValueLen);
/* retrieve ID, subject and value of certificate */
- rv = f->C_GetAttributeValue(session, *obj, cert_attr, 3);
+ rv = f->C_GetAttributeValue(session, *obj, cert_attr, nattr);
if (rv != CKR_OK) {
error("C_GetAttributeValue failed: %lu", rv);
goto out;
@@ -965,8 +1129,8 @@ pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
subject = xstrdup("invalid subject");
X509_NAME_free(x509_name);
- cp = cert_attr[2].pValue;
- if ((x509 = d2i_X509(NULL, &cp, cert_attr[2].ulValueLen)) == NULL) {
+ cp = cert_attr[3].pValue;
+ if ((x509 = d2i_X509(NULL, &cp, cert_attr[3].ulValueLen)) == NULL) {
error("d2i_x509 failed");
goto out;
}
@@ -986,7 +1150,7 @@ pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto out;
}
- if (pkcs11_rsa_wrap(p, slotidx, &cert_attr[0], rsa))
+ if (pkcs11_rsa_wrap(p, slotidx, &cert_attr[0], &cert_attr[1], rsa))
goto out;
key = sshkey_new(KEY_UNSPEC);
@@ -1016,7 +1180,7 @@ pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto out;
}
- if (pkcs11_ecdsa_wrap(p, slotidx, &cert_attr[0], ec))
+ if (pkcs11_ecdsa_wrap(p, slotidx, &cert_attr[0], &cert_attr[1], ec))
goto out;
key = sshkey_new(KEY_UNSPEC);
@@ -1036,7 +1200,7 @@ pkcs11_fetch_x509_pubkey(struct pkcs11_provider *p, CK_ULONG slotidx,
goto out;
}
out:
- for (i = 0; i < 3; i++)
+ for (i = 0; i < nattr; i++)
free(cert_attr[i].pValue);
X509_free(x509);
RSA_free(rsa);
@@ -1071,11 +1235,12 @@ have_rsa_key(const RSA *rsa)
*/
static int
pkcs11_fetch_certs(struct pkcs11_provider *p, CK_ULONG slotidx,
- struct sshkey ***keysp, char ***labelsp, int *nkeys)
+ struct sshkey ***keysp, char ***labelsp, int *nkeys, struct pkcs11_uri *uri)
{
struct sshkey *key = NULL;
CK_OBJECT_CLASS key_class;
- CK_ATTRIBUTE key_attr[1];
+ CK_ATTRIBUTE key_attr[3];
+ int nattr = 1;
CK_SESSION_HANDLE session;
CK_FUNCTION_LIST *f = NULL;
CK_RV rv;
@@ -1092,10 +1257,23 @@ pkcs11_fetch_certs(struct pkcs11_provider *p, CK_ULONG slotidx,
key_attr[0].pValue = &key_class;
key_attr[0].ulValueLen = sizeof(key_class);
- session = p->slotinfo[slotidx].session;
- f = p->function_list;
+ if (uri->id != NULL) {
+ key_attr[nattr].type = CKA_ID;
+ key_attr[nattr].pValue = uri->id;
+ key_attr[nattr].ulValueLen = uri->id_len;
+ nattr++;
+ }
+ if (uri->object != NULL) {
+ key_attr[nattr].type = CKA_LABEL;
+ key_attr[nattr].pValue = uri->object;
+ key_attr[nattr].ulValueLen = strlen(uri->object);
+ nattr++;
+ }
+
+ session = p->module->slotinfo[slotidx].session;
+ f = p->module->function_list;
- rv = f->C_FindObjectsInit(session, key_attr, 1);
+ rv = f->C_FindObjectsInit(session, key_attr, nattr);
if (rv != CKR_OK) {
error("C_FindObjectsInit failed: %lu", rv);
goto fail;
@@ -1175,11 +1353,12 @@ fail:
*/
static int
pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx,
- struct sshkey ***keysp, char ***labelsp, int *nkeys)
+ struct sshkey ***keysp, char ***labelsp, int *nkeys, struct pkcs11_uri *uri)
{
struct sshkey *key = NULL;
CK_OBJECT_CLASS key_class;
- CK_ATTRIBUTE key_attr[2];
+ CK_ATTRIBUTE key_attr[3];
+ int nattr = 1;
CK_SESSION_HANDLE session;
CK_FUNCTION_LIST *f = NULL;
CK_RV rv;
@@ -1195,10 +1374,23 @@ pkcs11_fetch_keys(struct pkcs11_provider *p, CK_ULONG slotidx,
key_attr[0].pValue = &key_class;
key_attr[0].ulValueLen = sizeof(key_class);
- session = p->slotinfo[slotidx].session;
- f = p->function_list;
+ if (uri->id != NULL) {
+ key_attr[nattr].type = CKA_ID;
+ key_attr[nattr].pValue = uri->id;
+ key_attr[nattr].ulValueLen = uri->id_len;
+ nattr++;
+ }
+ if (uri->object != NULL) {
+ key_attr[nattr].type = CKA_LABEL;
+ key_attr[nattr].pValue = uri->object;
+ key_attr[nattr].ulValueLen = strlen(uri->object);
+ nattr++;
+ }
+
+ session = p->module->slotinfo[slotidx].session;
+ f = p->module->function_list;
- rv = f->C_FindObjectsInit(session, key_attr, 1);
+ rv = f->C_FindObjectsInit(session, key_attr, nattr);
if (rv != CKR_OK) {
error("C_FindObjectsInit failed: %lu", rv);
goto fail;
@@ -1466,16 +1658,10 @@ pkcs11_ecdsa_generate_private_key(struct pkcs11_provider *p, CK_ULONG slotidx,
}
#endif /* WITH_PKCS11_KEYGEN */
-/*
- * register a new provider, fails if provider already exists. if
- * keyp is provided, fetch keys.
- */
static int
-pkcs11_register_provider(char *provider_id, char *pin,
- struct sshkey ***keyp, char ***labelsp,
- struct pkcs11_provider **providerp, CK_ULONG user)
+pkcs11_initialize_provider(struct pkcs11_uri *uri, struct pkcs11_provider **providerp)
{
- int nkeys, need_finalize = 0;
+ int need_finalize = 0;
int ret = -1;
struct pkcs11_provider *p = NULL;
void *handle = NULL;
@@ -1484,167 +1670,303 @@ pkcs11_register_provider(char *provider_id, char *pin,
CK_FUNCTION_LIST *f = NULL;
CK_TOKEN_INFO *token;
CK_ULONG i;
-
- if (providerp == NULL)
+ char *provider_module = NULL;
+ struct pkcs11_module *m = NULL;
+
+ /* if no provider specified, fallback to p11-kit */
+ if (uri->module_path == NULL) {
+#ifdef PKCS11_DEFAULT_PROVIDER
+ provider_module = strdup(PKCS11_DEFAULT_PROVIDER);
+#else
+ error("%s: No module path provided", __func__);
goto fail;
- *providerp = NULL;
-
- if (keyp != NULL)
- *keyp = NULL;
- if (labelsp != NULL)
- *labelsp = NULL;
+#endif
+ } else {
+ provider_module = strdup(uri->module_path);
+ }
- if (pkcs11_provider_lookup(provider_id) != NULL) {
- debug("%s: provider already registered: %s",
- __func__, provider_id);
- goto fail;
+ p = xcalloc(1, sizeof(*p));
+ p->name = pkcs11_uri_get(uri);
+
+ if ((m = pkcs11_provider_lookup_module(provider_module)) != NULL
+ && m->valid) {
+ debug("%s: provider module already initialized: %s",
+ __func__, provider_module);
+ free(provider_module);
+ /* Skip the initialization of PKCS#11 module */
+ m->refcount++;
+ p->module = m;
+ p->valid = 1;
+ TAILQ_INSERT_TAIL(&pkcs11_providers, p, next);
+ p->refcount++; /* add to provider list */
+ *providerp = p;
+ return 0;
+ } else {
+ m = xcalloc(1, sizeof(*m));
+ p->module = m;
+ m->refcount++;
}
+
/* open shared pkcs11-library */
- if ((handle = dlopen(provider_id, RTLD_NOW)) == NULL) {
- error("dlopen %s failed: %s", provider_id, dlerror());
+ if ((handle = dlopen(provider_module, RTLD_NOW)) == NULL) {
+ error("dlopen %s failed: %s", provider_module, dlerror());
goto fail;
}
if ((getfunctionlist = dlsym(handle, "C_GetFunctionList")) == NULL) {
error("dlsym(C_GetFunctionList) failed: %s", dlerror());
goto fail;
}
- p = xcalloc(1, sizeof(*p));
- p->name = xstrdup(provider_id);
- p->handle = handle;
+
+ p->module->handle = handle;
/* setup the pkcs11 callbacks */
if ((rv = (*getfunctionlist)(&f)) != CKR_OK) {
error("C_GetFunctionList for provider %s failed: %lu",
- provider_id, rv);
+ provider_module, rv);
goto fail;
}
- p->function_list = f;
+ m->function_list = f;
if ((rv = f->C_Initialize(NULL)) != CKR_OK) {
error("C_Initialize for provider %s failed: %lu",
- provider_id, rv);
+ provider_module, rv);
goto fail;
}
need_finalize = 1;
- if ((rv = f->C_GetInfo(&p->info)) != CKR_OK) {
+ if ((rv = f->C_GetInfo(&m->info)) != CKR_OK) {
error("C_GetInfo for provider %s failed: %lu",
- provider_id, rv);
+ provider_module, rv);
goto fail;
}
- rmspace(p->info.manufacturerID, sizeof(p->info.manufacturerID));
- rmspace(p->info.libraryDescription, sizeof(p->info.libraryDescription));
+ rmspace(m->info.manufacturerID, sizeof(m->info.manufacturerID));
+ if (uri->lib_manuf != NULL &&
+ strcmp(uri->lib_manuf, m->info.manufacturerID)) {
+ debug("%s: Skipping provider %s not matching library_manufacturer",
+ __func__, m->info.manufacturerID);
+ goto fail;
+ }
+ rmspace(m->info.libraryDescription, sizeof(m->info.libraryDescription));
debug("provider %s: manufacturerID <%s> cryptokiVersion %d.%d"
" libraryDescription <%s> libraryVersion %d.%d",
- provider_id,
- p->info.manufacturerID,
- p->info.cryptokiVersion.major,
- p->info.cryptokiVersion.minor,
- p->info.libraryDescription,
- p->info.libraryVersion.major,
- p->info.libraryVersion.minor);
- if ((rv = f->C_GetSlotList(CK_TRUE, NULL, &p->nslots)) != CKR_OK) {
+ provider_module,
+ m->info.manufacturerID,
+ m->info.cryptokiVersion.major,
+ m->info.cryptokiVersion.minor,
+ m->info.libraryDescription,
+ m->info.libraryVersion.major,
+ m->info.libraryVersion.minor);
+
+ if ((rv = f->C_GetSlotList(CK_TRUE, NULL, &m->nslots)) != CKR_OK) {
error("C_GetSlotList failed: %lu", rv);
goto fail;
}
- if (p->nslots == 0) {
+ if (m->nslots == 0) {
debug("%s: provider %s returned no slots", __func__,
- provider_id);
+ provider_module);
ret = -SSH_PKCS11_ERR_NO_SLOTS;
goto fail;
}
- p->slotlist = xcalloc(p->nslots, sizeof(CK_SLOT_ID));
- if ((rv = f->C_GetSlotList(CK_TRUE, p->slotlist, &p->nslots))
+ m->slotlist = xcalloc(m->nslots, sizeof(CK_SLOT_ID));
+ if ((rv = f->C_GetSlotList(CK_TRUE, m->slotlist, &m->nslots))
!= CKR_OK) {
error("C_GetSlotList for provider %s failed: %lu",
- provider_id, rv);
+ provider_module, rv);
goto fail;
}
- p->slotinfo = xcalloc(p->nslots, sizeof(struct pkcs11_slotinfo));
p->valid = 1;
- nkeys = 0;
- for (i = 0; i < p->nslots; i++) {
- token = &p->slotinfo[i].token;
- if ((rv = f->C_GetTokenInfo(p->slotlist[i], token))
+ m->slotinfo = xcalloc(m->nslots, sizeof(struct pkcs11_slotinfo));
+ m->valid = 1;
+ for (i = 0; i < m->nslots; i++) {
+ token = &m->slotinfo[i].token;
+ if ((rv = f->C_GetTokenInfo(m->slotlist[i], token))
!= CKR_OK) {
error("C_GetTokenInfo for provider %s slot %lu "
- "failed: %lu", provider_id, (unsigned long)i, rv);
+ "failed: %lu", provider_module, (unsigned long)i, rv);
+ token->flags = 0;
continue;
}
+ rmspace(token->label, sizeof(token->label));
+ rmspace(token->manufacturerID, sizeof(token->manufacturerID));
+ rmspace(token->model, sizeof(token->model));
+ rmspace(token->serialNumber, sizeof(token->serialNumber));
+ }
+ m->module_path = provider_module;
+ provider_module = NULL;
+
+ /* insert unconditionally -- remove if there will be no keys later */
+ TAILQ_INSERT_TAIL(&pkcs11_providers, p, next);
+ p->refcount++; /* add to provider list */
+ *providerp = p;
+ return 0;
+
+fail:
+ if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK)
+ error("C_Finalize for provider %s failed: %lu",
+ provider_module, rv);
+ free(provider_module);
+ if (m) {
+ free(m->slotlist);
+ free(m);
+ }
+ if (p) {
+ free(p->name);
+ free(p);
+ }
+ if (handle)
+ dlclose(handle);
+ return ret;
+}
+
+/*
+ * register a new provider, fails if provider already exists. if
+ * keyp is provided, fetch keys.
+ */
+static int
+pkcs11_register_provider_by_uri(struct pkcs11_uri *uri, char *pin,
+ struct sshkey ***keyp, char ***labelsp, struct pkcs11_provider **providerp,
+ CK_ULONG user)
+{
+ int nkeys;
+ int ret = -1;
+ struct pkcs11_provider *p = NULL;
+ CK_ULONG i;
+ CK_TOKEN_INFO *token;
+ char *provider_uri = NULL;
+
+ if (providerp == NULL)
+ goto fail;
+ *providerp = NULL;
+
+ if (keyp != NULL)
+ *keyp = NULL;
+
+ if ((ret = pkcs11_initialize_provider(uri, &p)) != 0) {
+ goto fail;
+ }
+
+ provider_uri = pkcs11_uri_get(uri);
+ if (pin == NULL && uri->pin != NULL) {
+ pin = uri->pin;
+ }
+ nkeys = 0;
+ for (i = 0; i < p->module->nslots; i++) {
+ token = &p->module->slotinfo[i].token;
if ((token->flags & CKF_TOKEN_INITIALIZED) == 0) {
debug2("%s: ignoring uninitialised token in "
"provider %s slot %lu", __func__,
- provider_id, (unsigned long)i);
+ provider_uri, (unsigned long)i);
+ continue;
+ }
+ if (uri->token != NULL &&
+ strcmp(token->label, uri->token) != 0) {
+ debug2("%s: ignoring token not matching label (%s) "
+ "specified by PKCS#11 URI in slot %lu", __func__,
+ token->label, (unsigned long)i);
+ continue;
+ }
+ if (uri->manuf != NULL &&
+ strcmp(token->manufacturerID, uri->manuf) != 0) {
+ debug2("%s: ignoring token not matching requrested "
+ "manufacturerID (%s) specified by PKCS#11 URI in "
+ "slot %lu", __func__,
+ token->manufacturerID, (unsigned long)i);
continue;
}
- rmspace(token->label, sizeof(token->label));
- rmspace(token->manufacturerID, sizeof(token->manufacturerID));
- rmspace(token->model, sizeof(token->model));
- rmspace(token->serialNumber, sizeof(token->serialNumber));
debug("provider %s slot %lu: label <%s> manufacturerID <%s> "
"model <%s> serial <%s> flags 0x%lx",
- provider_id, (unsigned long)i,
+ provider_uri, (unsigned long)i,
token->label, token->manufacturerID, token->model,
token->serialNumber, token->flags);
/*
- * open session, login with pin and retrieve public
- * keys (if keyp is provided)
+ * open session if not yet openend, login with pin and
+ * retrieve public keys (if keyp is provided)
*/
- if ((ret = pkcs11_open_session(p, i, pin, user)) != 0 ||
+ if ((p->module->slotinfo[i].session != 0 ||
+ (ret = pkcs11_open_session(p, i, pin, user)) != 0) && /* ??? */
keyp == NULL)
continue;
- pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys);
- pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys);
- if (nkeys == 0 && !p->slotinfo[i].logged_in &&
+ pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys, uri);
+ pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys, uri);
+ if (nkeys == 0 && !p->module->slotinfo[i].logged_in &&
pkcs11_interactive) {
/*
* Some tokens require login before they will
* expose keys.
*/
- if (pkcs11_login_slot(p, &p->slotinfo[i],
+ debug3("%s: Trying to login as there were no keys found",
+ __func__);
+ if (pkcs11_login_slot(p, &p->module->slotinfo[i],
CKU_USER) < 0) {
error("login failed");
continue;
}
- pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys);
- pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys);
+ pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys, uri);
+ pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys, uri);
+ }
+ if (nkeys == 0 && uri->object != NULL) {
+ debug3("%s: No keys found. Retrying without label (%s) ",
+ __func__, uri->object);
+ /* Try once more without the label filter */
+ char *label = uri->object;
+ uri->object = NULL; /* XXX clone uri? */
+ pkcs11_fetch_keys(p, i, keyp, labelsp, &nkeys, uri);
+ pkcs11_fetch_certs(p, i, keyp, labelsp, &nkeys, uri);
+ uri->object = label;
}
}
+ pin = NULL; /* Will be cleaned up with URI */
/* now owned by caller */
*providerp = p;
- TAILQ_INSERT_TAIL(&pkcs11_providers, p, next);
- p->refcount++; /* add to provider list */
-
+ free(provider_uri);
return (nkeys);
fail:
- if (need_finalize && (rv = f->C_Finalize(NULL)) != CKR_OK)
- error("C_Finalize for provider %s failed: %lu",
- provider_id, rv);
if (p) {
- free(p->name);
- free(p->slotlist);
- free(p->slotinfo);
- free(p);
+ TAILQ_REMOVE(&pkcs11_providers, p, next);
+ pkcs11_provider_unref(p);
}
- if (handle)
- dlclose(handle);
if (ret > 0)
ret = -1;
return (ret);
}
-/*
- * register a new provider and get number of keys hold by the token,
- * fails if provider already exists
- */
+static int
+pkcs11_register_provider(char *provider_id, char *pin, struct sshkey ***keyp,
+ char ***labelsp, struct pkcs11_provider **providerp, CK_ULONG user)
+{
+ struct pkcs11_uri *uri = NULL;
+ int r;
+
+ debug("%s: called, provider_id = %s", __func__, provider_id);
+
+ uri = pkcs11_uri_init();
+ if (uri == NULL)
+ fatal("failed to init PKCS#11 URI");
+
+ if (strlen(provider_id) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(provider_id, PKCS11_URI_SCHEME, strlen(PKCS11_URI_SCHEME)) == 0) {
+ if (pkcs11_uri_parse(provider_id, uri) != 0)
+ fatal("Failed to parse PKCS#11 URI");
+ } else {
+ uri->module_path = strdup(provider_id);
+ }
+
+ r = pkcs11_register_provider_by_uri(uri, pin, keyp, labelsp, providerp, user);
+ pkcs11_uri_cleanup(uri);
+
+ return r;
+}
+
int
-pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp,
- char ***labelsp)
+pkcs11_add_provider_by_uri(struct pkcs11_uri *uri, char *pin,
+ struct sshkey ***keyp, char ***labelsp)
{
- struct pkcs11_provider *p = NULL;
int nkeys;
+ struct pkcs11_provider *p = NULL;
+ char *provider_uri = pkcs11_uri_get(uri);
+
+ debug("%s: called, provider_uri = %s", __func__, provider_uri);
- nkeys = pkcs11_register_provider(provider_id, pin, keyp, labelsp,
- &p, CKU_USER);
+ nkeys = pkcs11_register_provider_by_uri(uri, pin, keyp, labelsp, &p, CKU_USER);
/* no keys found or some other error, de-register provider */
if (nkeys <= 0 && p != NULL) {
@@ -1652,7 +1974,37 @@ pkcs11_add_provider(char *provider_id, char *pin, struct sshkey ***keyp,
}
if (nkeys == 0)
debug("%s: provider %s returned no keys", __func__,
- provider_id);
+ provider_uri);
+
+ free(provider_uri);
+ return nkeys;
+}
+
+/*
+ * register a new provider and get number of keys hold by the token,
+ * fails if provider already exists
+ */
+int
+pkcs11_add_provider(char *provider_id, char *pin,
+ struct sshkey ***keyp, char ***labelsp)
+{
+ struct pkcs11_uri *uri;
+ int nkeys;
+
+ uri = pkcs11_uri_init();
+ if (uri == NULL)
+ fatal("Failed to init PKCS#11 URI");
+
+ if (strlen(provider_id) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(provider_id, PKCS11_URI_SCHEME, strlen(PKCS11_URI_SCHEME)) == 0) {
+ if (pkcs11_uri_parse(provider_id, uri) != 0)
+ fatal("Failed to parse PKCS#11 URI");
+ } else {
+ uri->module_path = strdup(provider_id);
+ }
+
+ nkeys = pkcs11_add_provider_by_uri(uri, pin, keyp, labelsp);
+ pkcs11_uri_cleanup(uri);
return (nkeys);
}
@@ -1674,7 +2026,7 @@ pkcs11_gakp(char *provider_id, char *pin, unsigned int slotidx, char *label,
if ((p = pkcs11_provider_lookup(provider_id)) != NULL)
debug("%s: provider \"%s\" available", __func__, provider_id);
- else if ((ret = pkcs11_register_provider(provider_id, pin, NULL, NULL,
+ else if ((rv = pkcs11_register_provider(provider_id, pin, NULL, NULL,
&p, CKU_SO)) < 0) {
debug("%s: could not register provider %s", __func__,
provider_id);
@@ -1746,8 +2098,8 @@ pkcs11_destroy_keypair(char *provider_id, char *pin, unsigned long slotidx,
if ((p = pkcs11_provider_lookup(provider_id)) != NULL) {
debug("%s: using provider \"%s\"", __func__, provider_id);
- } else if (pkcs11_register_provider(provider_id, pin, NULL, NULL, &p,
- CKU_SO) < 0) {
+ } else if ((rv = pkcs11_register_provider(provider_id, pin, NULL, NULL,
+ &p, CKU_SO)) < 0) {
debug("%s: could not register provider %s", __func__,
provider_id);
goto out;
diff --git a/ssh-pkcs11.h b/ssh-pkcs11.h
index 81f1d7c5..feaf74de 100644
--- a/ssh-pkcs11.h
+++ b/ssh-pkcs11.h
@@ -22,10 +22,14 @@
#define SSH_PKCS11_ERR_PIN_REQUIRED 4
#define SSH_PKCS11_ERR_PIN_LOCKED 5
+#include "ssh-pkcs11-uri.h"
+
int pkcs11_init(int);
void pkcs11_terminate(void);
int pkcs11_add_provider(char *, char *, struct sshkey ***, char ***);
+int pkcs11_add_provider_by_uri(struct pkcs11_uri *, char *, struct sshkey ***, char ***);
int pkcs11_del_provider(char *);
+int pkcs11_uri_write(const struct sshkey *, FILE *);
#ifdef WITH_PKCS11_KEYGEN
struct sshkey *
pkcs11_gakp(char *, char *, unsigned int, char *, unsigned int,
diff --git a/ssh.c b/ssh.c
index 15aee569..976844cb 100644
--- a/ssh.c
+++ b/ssh.c
@@ -795,6 +795,14 @@ main(int ac, char **av)
options.gss_deleg_creds = 1;
break;
case 'i':
+#ifdef ENABLE_PKCS11
+ if (strlen(optarg) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(optarg, PKCS11_URI_SCHEME,
+ strlen(PKCS11_URI_SCHEME)) == 0) {
+ add_identity_file(&options, NULL, optarg, 1);
+ break;
+ }
+#endif
p = tilde_expand_filename(optarg, getuid());
if (stat(p, &st) == -1)
fprintf(stderr, "Warning: Identity file %s "
@@ -1603,6 +1611,7 @@ main(int ac, char **av)
free(options.certificate_files[i]);
options.certificate_files[i] = NULL;
}
+ pkcs11_terminate();
skip_connect:
exit_status = ssh_session2(ssh, pw);
@@ -2076,6 +2085,45 @@ ssh_session2(struct ssh *ssh, struct passwd *pw)
options.escape_char : SSH_ESCAPECHAR_NONE, id);
}
+#ifdef ENABLE_PKCS11
+static void
+load_pkcs11_identity(char *pkcs11_uri, char *identity_files[],
+ struct sshkey *identity_keys[], int *n_ids)
+{
+ int nkeys, i;
+ struct sshkey **keys;
+ struct pkcs11_uri *uri;
+
+ debug("identity file '%s' from pkcs#11", pkcs11_uri);
+ uri = pkcs11_uri_init();
+ if (uri == NULL)
+ fatal("Failed to init PKCS#11 URI");
+
+ if (pkcs11_uri_parse(pkcs11_uri, uri) != 0)
+ fatal("Failed to parse PKCS#11 URI %s", pkcs11_uri);
+
+ /* we need to merge URI and provider together */
+ if (options.pkcs11_provider != NULL && uri->module_path == NULL)
+ uri->module_path = strdup(options.pkcs11_provider);
+
+ if (options.num_identity_files < SSH_MAX_IDENTITY_FILES &&
+ (nkeys = pkcs11_add_provider_by_uri(uri, NULL, &keys, NULL)) > 0) {
+ for (i = 0; i < nkeys; i++) {
+ if (*n_ids >= SSH_MAX_IDENTITY_FILES) {
+ sshkey_free(keys[i]);
+ continue;
+ }
+ identity_keys[*n_ids] = keys[i];
+ identity_files[*n_ids] = pkcs11_uri_get(uri);
+ (*n_ids)++;
+ }
+ free(keys);
+ }
+
+ pkcs11_uri_cleanup(uri);
+}
+#endif /* ENABLE_PKCS11 */
+
/* Loads all IdentityFile and CertificateFile keys */
static void
load_public_identity_files(struct passwd *pw)
@@ -2090,11 +2138,6 @@ load_public_identity_files(struct passwd *pw)
char *certificate_files[SSH_MAX_CERTIFICATE_FILES];
struct sshkey *certificates[SSH_MAX_CERTIFICATE_FILES];
int certificate_file_userprovided[SSH_MAX_CERTIFICATE_FILES];
-#ifdef ENABLE_PKCS11
- struct sshkey **keys = NULL;
- char **comments = NULL;
- int nkeys;
-#endif /* PKCS11 */
n_ids = n_certs = 0;
memset(identity_files, 0, sizeof(identity_files));
@@ -2107,33 +2150,46 @@ load_public_identity_files(struct passwd *pw)
sizeof(certificate_file_userprovided));
#ifdef ENABLE_PKCS11
- if (options.pkcs11_provider != NULL &&
- options.num_identity_files < SSH_MAX_IDENTITY_FILES &&
- (pkcs11_init(!options.batch_mode) == 0) &&
- (nkeys = pkcs11_add_provider(options.pkcs11_provider, NULL,
- &keys, &comments)) > 0) {
- for (i = 0; i < nkeys; i++) {
- if (n_ids >= SSH_MAX_IDENTITY_FILES) {
- sshkey_free(keys[i]);
- free(comments[i]);
- continue;
- }
- identity_keys[n_ids] = keys[i];
- identity_files[n_ids] = comments[i]; /* transferred */
- n_ids++;
- }
- free(keys);
- free(comments);
+ /* handle fallback from PKCS11Provider option */
+ pkcs11_init(!options.batch_mode);
+
+ if (options.pkcs11_provider != NULL) {
+ struct pkcs11_uri *uri;
+
+ uri = pkcs11_uri_init();
+ if (uri == NULL)
+ fatal("Failed to init PKCS#11 URI");
+
+ /* Construct simple PKCS#11 URI to simplify access */
+ uri->module_path = strdup(options.pkcs11_provider);
+
+ /* Add it as any other IdentityFile */
+ cp = pkcs11_uri_get(uri);
+ add_identity_file(&options, NULL, cp, 1);
+ free(cp);
+
+ pkcs11_uri_cleanup(uri);
}
#endif /* ENABLE_PKCS11 */
for (i = 0; i < options.num_identity_files; i++) {
+ char *name = options.identity_files[i];
if (n_ids >= SSH_MAX_IDENTITY_FILES ||
- strcasecmp(options.identity_files[i], "none") == 0) {
+ strcasecmp(name, "none") == 0) {
free(options.identity_files[i]);
options.identity_files[i] = NULL;
continue;
}
- cp = tilde_expand_filename(options.identity_files[i], getuid());
+#ifdef ENABLE_PKCS11
+ if (strlen(name) >= strlen(PKCS11_URI_SCHEME) &&
+ strncmp(name, PKCS11_URI_SCHEME,
+ strlen(PKCS11_URI_SCHEME)) == 0) {
+ load_pkcs11_identity(name, identity_files,
+ identity_keys, &n_ids);
+ free(options.identity_files[i]);
+ continue;
+ }
+#endif /* ENABLE_PKCS11 */
+ cp = tilde_expand_filename(name, getuid());
filename = default_client_percent_dollar_expand(cp,
pw->pw_dir, host, options.user, pw->pw_name);
free(cp);
diff --git a/ssh_config.5 b/ssh_config.5
index 06a32d31..4b2763bd 100644
--- a/ssh_config.5
+++ b/ssh_config.5
@@ -986,6 +986,21 @@ may also be used in conjunction with
.Cm CertificateFile
in order to provide any certificate also needed for authentication with
the identity.
+.Pp
+The authentication identity can be also specified in a form of PKCS#11 URI
+starting with a string
+.Cm pkcs11: .
+There is supported a subset of the PKCS#11 URI as defined
+in RFC 7512 (implemented path arguments
+.Cm id ,
+.Cm manufacturer ,
+.Cm object ,
+.Cm token
+and query arguments
+.Cm module-path
+and
+.Cm pin-value
+). The URI can not be in quotes.
.It Cm IgnoreUnknown
Specifies a pattern-list of unknown options to be ignored if they are
encountered in configuration parsing.
Reference in New Issue View Git Blame Copy Permalink