Add basic trust module

This is based off the roots-store from gnome-keyring and loads
certificates from a root directory and exposes them as PKCS#11
objects.

4 files changed, 400 insertions, 2 deletions

diff --git a/common/tests/Makefile.am b/common/tests/Makefile.am
index e3f2063..be92e8d 100644
--- a/common/tests/Makefile.am
+++ b/common/tests/Makefile.am
@@ -14,12 +14,10 @@ INCLUDES = \
 LDADD = \
 	$(top_builddir)/common/libp11-library.la \
 	$(top_builddir)/common/libp11-compat.la \
-	$(top_builddir)/common/libp11-data.la \
 	$(CUTEST_LIBS) \
 	$(NULL)
 
 CHECK_PROGS = \
-	test-checksum \
 	test-dict \
 	test-array \
 	test-attrs \
@@ -30,3 +28,21 @@ noinst_PROGRAMS = \
 	$(CHECK_PROGS)
 
 TESTS = $(CHECK_PROGS:=$(EXEEXT))
+
+if WITH_ASN1
+
+LDADD += \
+	$(top_builddir)/common/libp11-data.la \
+	$(LIBTASN1_LIBS)
+	$(NULL)
+
+CHECK_PROGS += \
+	test-checksum
+
+noinst_PROGRAMS += \
+	frob-ku \
+	frob-eku \
+	frob-cert \
+	$(NULL)
+
+endif # WITH_ASN1
diff --git a/common/tests/frob-cert.c b/common/tests/frob-cert.c
new file mode 100644
index 0000000..f8ad392
--- /dev/null
+++ b/common/tests/frob-cert.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2012 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions of source code must retain the above
+ *       copyright notice, this list of conditions and the
+ *       following disclaimer.
+ *     * Redistributions in binary form must reproduce the
+ *       above copyright notice, this list of conditions and
+ *       the following disclaimer in the documentation and/or
+ *       other materials provided with the distribution.
+ *     * The names of contributors to this software may not be
+ *       used to endorse or promote products derived from this
+ *       software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * Author: Stef Walter <stefw@gnome.org>
+ */
+
+#include "config.h"
+#include "compat.h"
+
+#include <libtasn1.h>
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <assert.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "pkix.asn.h"
+
+#define err_if_fail(ret, msg) \
+	do { if ((ret) != ASN1_SUCCESS) { \
+		fprintf (stderr, "%s: %s\n", msg, asn1_strerror (ret)); \
+		exit (1); \
+	} } while (0)
+
+static ssize_t
+tlv_length (const unsigned char *data,
+            size_t length)
+{
+	unsigned char cls;
+	int counter = 0;
+	int cb, len;
+	unsigned long tag;
+
+	if (asn1_get_tag_der (data, length, &cls, &cb, &tag) == ASN1_SUCCESS) {
+		counter += cb;
+		len = asn1_get_length_der (data + cb, length - cb, &cb);
+		counter += cb;
+		if (len >= 0) {
+			len += counter;
+			if (length >= len)
+				return len;
+		}
+	}
+
+	return -1;
+}
+
+int
+main (int argc,
+      char *argv[])
+{
+	char message[ASN1_MAX_ERROR_DESCRIPTION_SIZE] = { 0, };
+	node_asn *definitions = NULL;
+	node_asn *cert = NULL;
+	unsigned char *data;
+	struct stat sb;
+	int start, end;
+	ssize_t len;
+	int ret;
+	int fd;
+
+	if (argc != 4) {
+		fprintf (stderr, "usage: frob-cert struct field filename\n");
+		return 2;
+	}
+
+	ret = asn1_array2tree (pkix_asn1_tab, &definitions, message);
+	if (ret != ASN1_SUCCESS) {
+		fprintf (stderr, "definitions: %s\n", message);
+		return 1;
+	}
+
+	ret = asn1_create_element (definitions, argv[1], &cert);
+	err_if_fail (ret, "Certificate");
+
+	fd = open (argv[3], O_RDONLY);
+	if (fd == -1) {
+		fprintf (stderr, "couldn't open file: %s\n", argv[3]);
+		return 1;
+	}
+
+	if (fstat (fd, &sb) < 0) {
+		fprintf (stderr, "couldn't stat file: %s\n", argv[3]);
+		return 1;
+	}
+
+	data = mmap (NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (data == NULL) {
+		fprintf (stderr, "couldn't map file: %s\n", argv[3]);
+		return 1;
+	}
+
+	ret = asn1_der_decoding (&cert, data, sb.st_size, message);
+	err_if_fail (ret, message);
+
+	ret = asn1_der_decoding_startEnd (cert, data, sb.st_size, argv[2], &start, &end);
+	err_if_fail (ret, "asn1_der_decoding_startEnd");
+
+	len = tlv_length (data + start, sb.st_size - start);
+	assert (len >= 0);
+
+	fprintf (stderr, "%lu %d %d %ld\n", sb.st_size, start, end, len);
+	fwrite (data + start, 1, len, stdout);
+	fflush (stdout);
+
+	munmap (data, sb.st_size);
+	close (fd);
+
+	asn1_delete_structure (&cert);
+	asn1_delete_structure (&definitions);
+
+	return 0;
+}
diff --git a/common/tests/frob-eku.c b/common/tests/frob-eku.c
new file mode 100644
index 0000000..42bf50b
--- /dev/null
+++ b/common/tests/frob-eku.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2012 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions of source code must retain the above
+ *       copyright notice, this list of conditions and the
+ *       following disclaimer.
+ *     * Redistributions in binary form must reproduce the
+ *       above copyright notice, this list of conditions and
+ *       the following disclaimer in the documentation and/or
+ *       other materials provided with the distribution.
+ *     * The names of contributors to this software may not be
+ *       used to endorse or promote products derived from this
+ *       software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * Author: Stef Walter <stefw@gnome.org>
+ */
+
+#include "config.h"
+#include "compat.h"
+
+#include <libtasn1.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "pkix.asn.h"
+
+#define err_if_fail(ret, msg) \
+	do { if ((ret) != ASN1_SUCCESS) { \
+		fprintf (stderr, "%s: %s\n", msg, asn1_strerror (ret)); \
+		exit (1); \
+	} } while (0)
+
+int
+main (int argc,
+      char *argv[])
+{
+	char message[ASN1_MAX_ERROR_DESCRIPTION_SIZE] = { 0, };
+	node_asn *definitions = NULL;
+	node_asn *ekus = NULL;
+	char *buf;
+	int len;
+	int ret;
+	int i;
+
+	ret = asn1_array2tree (pkix_asn1_tab, &definitions, message);
+	if (ret != ASN1_SUCCESS) {
+		fprintf (stderr, "definitions: %s\n", message);
+		return 1;
+	}
+
+	ret = asn1_create_element (definitions, "PKIX1.ExtKeyUsageSyntax", &ekus);
+	err_if_fail (ret, "ExtKeyUsageSyntax");
+
+	for (i = 1; i < argc; i++) {
+		ret = asn1_write_value (ekus, "", "NEW", 1);
+		err_if_fail (ret, "NEW");
+
+		ret = asn1_write_value (ekus, "?LAST", argv[i], strlen (argv[i]));
+		err_if_fail (ret, "asn1_write_value");
+	}
+
+	len = 0;
+	ret = asn1_der_coding (ekus, "", NULL, &len, message);
+	assert (ret == ASN1_MEM_ERROR);
+
+	buf = malloc (len);
+	assert (buf != NULL);
+	ret = asn1_der_coding (ekus, "", buf, &len, message);
+	if (ret != ASN1_SUCCESS) {
+		fprintf (stderr, "asn1_der_coding: %s\n", message);
+		return 1;
+	}
+
+	fwrite (buf, 1, len, stdout);
+	fflush (stdout);
+
+	asn1_delete_structure (&ekus);
+	asn1_delete_structure (&definitions);
+
+	return 0;
+}
diff --git a/common/tests/frob-ku.c b/common/tests/frob-ku.c
new file mode 100644
index 0000000..c0abd88
--- /dev/null
+++ b/common/tests/frob-ku.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2012 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *     * Redistributions of source code must retain the above
+ *       copyright notice, this list of conditions and the
+ *       following disclaimer.
+ *     * Redistributions in binary form must reproduce the
+ *       above copyright notice, this list of conditions and
+ *       the following disclaimer in the documentation and/or
+ *       other materials provided with the distribution.
+ *     * The names of contributors to this software may not be
+ *       used to endorse or promote products derived from this
+ *       software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+ * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * Author: Stef Walter <stefw@gnome.org>
+ */
+
+#include "config.h"
+#include "compat.h"
+
+#include <libtasn1.h>
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "pkix.asn.h"
+
+#define err_if_fail(ret, msg) \
+	do { if ((ret) != ASN1_SUCCESS) { \
+		fprintf (stderr, "%s: %s\n", msg, asn1_strerror (ret)); \
+		exit (1); \
+	} } while (0)
+
+enum {
+	KU_DIGITAL_SIGNATURE = 128,
+	KU_NON_REPUDIATION = 64,
+	KU_KEY_ENCIPHERMENT = 32,
+	KU_DATA_ENCIPHERMENT = 16,
+	KU_KEY_AGREEMENT = 8,
+	KU_KEY_CERT_SIGN = 4,
+	KU_CRL_SIGN = 2,
+	KU_ENCIPHER_ONLY = 1,
+	KU_DECIPHER_ONLY = 32768,
+};
+
+int
+main (int argc,
+      char *argv[])
+{
+	char message[ASN1_MAX_ERROR_DESCRIPTION_SIZE] = { 0, };
+	node_asn *definitions = NULL;
+	node_asn *ku = NULL;
+	unsigned int usage = 0;
+	char bits[2];
+	char *buf;
+	int len;
+	int ret;
+	int i;
+
+	for (i = 1; i < argc; i++) {
+		if (strcmp (argv[i], "digital-signature") == 0)
+			usage |= KU_DIGITAL_SIGNATURE;
+		else if (strcmp (argv[i], "non-repudiation") == 0)
+			usage |= KU_NON_REPUDIATION;
+		else if (strcmp (argv[i], "key-encipherment") == 0)
+			usage |= KU_KEY_ENCIPHERMENT;
+		else if (strcmp (argv[i], "data-encipherment") == 0)
+			usage |= KU_DATA_ENCIPHERMENT;
+		else if (strcmp (argv[i], "key-agreement") == 0)
+			usage |= KU_KEY_AGREEMENT;
+		else if (strcmp (argv[i], "key-cert-sign") == 0)
+			usage |= KU_KEY_CERT_SIGN;
+		else if (strcmp (argv[i], "crl-sign") == 0)
+			usage |= KU_CRL_SIGN;
+		else {
+			fprintf (stderr, "unsupported or unknown key usage: %s\n", argv[i]);
+			return 2;
+		}
+	}
+
+	ret = asn1_array2tree (pkix_asn1_tab, &definitions, message);
+	if (ret != ASN1_SUCCESS) {
+		fprintf (stderr, "definitions: %s\n", message);
+		return 1;
+	}
+
+	ret = asn1_create_element (definitions, "PKIX1.KeyUsage", &ku);
+	err_if_fail (ret, "KeyUsage");
+
+	bits[0] = usage & 0xff;
+	bits[1] = (usage >> 8) & 0xff;
+
+	ret = asn1_write_value (ku, "", bits, 9);
+	err_if_fail (ret, "asn1_write_value");
+
+	len = 0;
+	ret = asn1_der_coding (ku, "", NULL, &len, message);
+	assert (ret == ASN1_MEM_ERROR);
+
+	buf = malloc (len);
+	assert (buf != NULL);
+	ret = asn1_der_coding (ku, "", buf, &len, message);
+	if (ret != ASN1_SUCCESS) {
+		fprintf (stderr, "asn1_der_coding: %s\n", message);
+		return 1;
+	}
+
+	fwrite (buf, 1, len, stdout);
+	fflush (stdout);
+
+	asn1_delete_structure (&ku);
+	asn1_delete_structure (&definitions);
+
+	return 0;
+}