diff options
Diffstat (limited to 'tests/unit_tests/engine-key')
| -rw-r--r-- | tests/unit_tests/engine-key/Makefile.am | 29 | ||||
| -rwxr-xr-x | tests/unit_tests/engine-key/check_engine_keys.sh | 36 | ||||
| -rw-r--r-- | tests/unit_tests/engine-key/libtestengine.c | 116 | ||||
| -rw-r--r-- | tests/unit_tests/engine-key/openssl.cnf.in | 12 |
4 files changed, 193 insertions, 0 deletions
diff --git a/tests/unit_tests/engine-key/Makefile.am b/tests/unit_tests/engine-key/Makefile.am new file mode 100644 index 0000000..2462225 --- /dev/null +++ b/tests/unit_tests/engine-key/Makefile.am @@ -0,0 +1,29 @@ +AUTOMAKE_OPTIONS = foreign + +check_LTLIBRARIES = libtestengine.la +conffiles = openssl.cnf +EXTRA_DIST = \ + openssl.cnf.in \ + check_engine_keys.sh + +TESTS_ENVIRONMENT = srcdir="$(abs_srcdir)"; \ + builddir="$(abs_builddir)"; \ + top_builddir="$(top_builddir)"; \ + top_srcdir="$(top_srcdir)"; \ + export srcdir builddir top_builddir top_srcdir; + +TESTS = check_engine_keys.sh +check_engine_keys.sh: $(conffiles) + +CLEANFILES = \ + client.key \ + passwd \ + log.txt \ + $(conffiles) + +openssl.cnf: $(srcdir)/openssl.cnf.in + sed "s|ABSBUILDDIR|$(abs_builddir)|" < $(srcdir)/openssl.cnf.in > $@ + +libtestengine_la_SOURCES = libtestengine.c +libtestengine_la_LDFLAGS = @TEST_LDFLAGS@ -rpath /lib -shrext .so +libtestengine_la_CFLAGS = @TEST_CFLAGS@ -I$(openvpn_srcdir) -I$(compat_srcdir) diff --git a/tests/unit_tests/engine-key/check_engine_keys.sh b/tests/unit_tests/engine-key/check_engine_keys.sh new file mode 100755 index 0000000..7e9a0e8 --- /dev/null +++ b/tests/unit_tests/engine-key/check_engine_keys.sh @@ -0,0 +1,36 @@ +#!/bin/sh + +OPENSSL_CONF="${builddir}/openssl.cnf" +export OPENSSL_CONF + +password='AT3S4PASSWD' + +key="${builddir}/client.key" +pwdfile="${builddir}/passwd" + +# create an engine key for us +sed 's/PRIVATE KEY/TEST ENGINE KEY/' < ${top_srcdir}/sample/sample-keys/client.key > ${key} +echo "$password" > $pwdfile + +# our version of grep to output log.txt on failure in case it's an openssl +# error mismatch and the grep expression needs updating +loggrep() { + egrep -q "$1" log.txt || { echo '---- begin log.txt ----'; cat log.txt; echo '--- end log.txt ---'; return 1; } +} + +# note here we've induced a mismatch in the client key and the server +# cert which openvpn should report and die. Check that it does. Note +# also that this mismatch depends on openssl not openvpn, so it is +# somewhat fragile +${top_builddir}/src/openvpn/openvpn --cd ${top_srcdir}/sample --config sample-config-files/loopback-server --engine testengine --key ${key} --askpass $pwdfile > log.txt 2>&1 + +# first off check we died because of a key mismatch. If this doesn't +# pass, suspect openssl of returning different messages and update the +# test accordingly +loggrep '(X509_check_private_key:key values mismatch|func\(128\):reason\(116\))' log.txt || { echo "Key mismatch not detected"; exit 1; } + +# now look for the engine prints (these are under our control) +loggrep 'ENGINE: engine_init called' || { echo "Engine initialization not detected"; exit 1; } +loggrep 'ENGINE: engine_load_key called' || { echo "Key was not loaded from engine"; exit 1; } +loggrep "ENGINE: engine_load_key got password ${password}" || { echo "Key password was not retrieved by the engine"; exit 1; } +exit 0 diff --git a/tests/unit_tests/engine-key/libtestengine.c b/tests/unit_tests/engine-key/libtestengine.c new file mode 100644 index 0000000..8bcfa92 --- /dev/null +++ b/tests/unit_tests/engine-key/libtestengine.c @@ -0,0 +1,116 @@ +#include <string.h> +#include <openssl/engine.h> +#include <openssl/evp.h> +#include <openssl/pem.h> + +static char *engine_id = "testengine"; +static char *engine_name = "Engine for testing openvpn engine key support"; + +static int is_initialized = 0; + +static int +engine_init(ENGINE *e) +{ + is_initialized = 1; + fprintf(stderr, "ENGINE: engine_init called\n"); + return 1; +} + +static int +engine_finish(ENGINE *e) +{ + fprintf(stderr, "ENGINE: engine_finsh called\n"); + is_initialized = 0; + return 1; +} + +static EVP_PKEY * +engine_load_key(ENGINE *e, const char *key_id, + UI_METHOD *ui_method, void *cb_data) +{ + BIO *b; + EVP_PKEY *pkey; + PKCS8_PRIV_KEY_INFO *p8inf; + UI *ui; + char auth[256]; + + fprintf(stderr, "ENGINE: engine_load_key called\n"); + + if (!is_initialized) + { + fprintf(stderr, "Load Key called without correct initialization\n"); + return NULL; + } + b = BIO_new_file(key_id, "r"); + if (!b) + { + fprintf(stderr, "File %s does not exist or cannot be read\n", key_id); + return 0; + } + /* Basically read an EVP_PKEY private key file with different + * PEM guards --- we are a test engine */ + p8inf = PEM_ASN1_read_bio((d2i_of_void *)d2i_PKCS8_PRIV_KEY_INFO, + "TEST ENGINE KEY", b, + NULL, NULL, NULL); + BIO_free(b); + if (!p8inf) + { + fprintf(stderr, "Failed to read engine private key\n"); + return NULL; + } + pkey = EVP_PKCS82PKEY(p8inf); + + /* now we have a private key, pretend it had a password + * this verifies the password makes it through openvpn OK */ + ui = UI_new(); + + if (ui_method) + { + UI_set_method(ui, ui_method); + } + + UI_add_user_data(ui, cb_data); + + if (UI_add_input_string(ui, "enter test engine key", + UI_INPUT_FLAG_DEFAULT_PWD, + auth, 0, sizeof(auth)) == 0) + { + fprintf(stderr, "UI_add_input_string failed\n"); + goto out; + } + + if (UI_process(ui)) + { + fprintf(stderr, "UI_process failed\n"); + goto out; + } + + fprintf(stderr, "ENGINE: engine_load_key got password %s\n", auth); + +out: + UI_free(ui); + + return pkey; +} + + +static int +engine_bind_fn(ENGINE *e, const char *id) +{ + if (id && strcmp(id, engine_id) != 0) + { + return 0; + } + if (!ENGINE_set_id(e, engine_id) + || !ENGINE_set_name(e, engine_name) + || !ENGINE_set_init_function(e, engine_init) + || !ENGINE_set_finish_function(e, engine_finish) + || !ENGINE_set_load_privkey_function(e, engine_load_key)) + { + return 0; + } + return 1; +} + +IMPLEMENT_DYNAMIC_CHECK_FN() +IMPLEMENT_DYNAMIC_BIND_FN(engine_bind_fn) diff --git a/tests/unit_tests/engine-key/openssl.cnf.in b/tests/unit_tests/engine-key/openssl.cnf.in new file mode 100644 index 0000000..5eda9fa --- /dev/null +++ b/tests/unit_tests/engine-key/openssl.cnf.in @@ -0,0 +1,12 @@ +HOME = . +openssl_conf = openssl_init + +[req] +[openssl_init] +engines = engines_section + +[engines_section] +testengine = testengine_section + +[testengine_section] +dynamic_path = ABSBUILDDIR/.libs/libtestengine.so |