trust: Avoid confusion in DER/PEM decoding

Previously p11-kit-trust.so tried to interpret certificate as PEM format
first.  This could cause potential conflict if the certificate were
actually in DER format and contained a PEM marker strings.

https://bugs.freedesktop.org/show_bug.cgi?id=92063

3 files changed, 115 insertions, 1 deletions

diff --git a/trust/test-token.c b/trust/test-token.c
index d557980..ad22fcb 100644
--- a/trust/test-token.c
+++ b/trust/test-token.c
@@ -405,6 +405,23 @@ test_load_found (void)
 }
 
 static void
+test_load_contrived (void)
+{
+	int ret;
+	p11_index *index;
+
+	p11_test_file_write (test.directory, "contrived.der", test_contrived_der,
+	                     sizeof (test_contrived_der));
+
+	ret = p11_token_load (test.token);
+	assert_num_eq (ret, 1);
+
+	index = p11_token_index (test.token);
+	ret = p11_index_size (index);
+	assert_num_eq (ret, 3);
+}
+
+static void
 test_reload_changed (void)
 {
 	CK_ATTRIBUTE cacert3[] = {
@@ -780,6 +797,7 @@ main (int argc,
 	p11_test (test_load_already, "/token/load-already");
 	p11_test (test_load_unreadable, "/token/load-unreadable");
 	p11_test (test_load_gone, "/token/load-gone");
+	p11_test (test_load_contrived, "/token/load-contrived");
 	p11_test (test_reload_changed, "/token/reload-changed");
 	p11_test (test_reload_gone, "/token/reload-gone");
 	p11_test (test_reload_no_origin, "/token/reload-no-origin");
diff --git a/trust/test-trust.h b/trust/test-trust.h
index 81c779c..5ce3508 100644
--- a/trust/test-trust.h
+++ b/trust/test-trust.h
@@ -357,6 +357,102 @@ static const unsigned char example_public_key[] = {
 	0x15, 0x02, 0x03, 0x01, 0x00, 0x01
 };
 
+static const char test_contrived_der[] = {
+	0x30, 0x82, 0x05, 0xbd, 0x30, 0x82, 0x05, 0x62, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x0c, 0x57,
+	0xea, 0x3b, 0x20, 0x31, 0x8a, 0x20, 0x40, 0xac, 0xad, 0x0a, 0xf1, 0x30, 0x0a, 0x06, 0x08, 0x2a,
+	0x86, 0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x30, 0x82, 0x02, 0x46, 0x31, 0x82, 0x02, 0x42, 0x30,
+	0x82, 0x02, 0x3e, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x82, 0x02, 0x35, 0x63, 0x6f, 0x6e, 0x74,
+	0x72, 0x69, 0x76, 0x65, 0x64, 0x20, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x20, 0x63, 0x61, 0x0a, 0x2d,
+	0x2d, 0x2d, 0x2d, 0x2d, 0x42, 0x45, 0x47, 0x49, 0x4e, 0x20, 0x43, 0x45, 0x52, 0x54, 0x49, 0x46,
+	0x49, 0x43, 0x41, 0x54, 0x45, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x0a, 0x4d, 0x49, 0x49, 0x42, 0x5a,
+	0x6a, 0x43, 0x43, 0x41, 0x51, 0x79, 0x67, 0x41, 0x77, 0x49, 0x42, 0x41, 0x67, 0x49, 0x4d, 0x56,
+	0x2b, 0x6f, 0x36, 0x41, 0x67, 0x51, 0x70, 0x74, 0x75, 0x63, 0x6c, 0x62, 0x5a, 0x34, 0x72, 0x4d,
+	0x41, 0x6f, 0x47, 0x43, 0x43, 0x71, 0x47, 0x53, 0x4d, 0x34, 0x39, 0x42, 0x41, 0x4d, 0x43, 0x4d,
+	0x42, 0x30, 0x78, 0x47, 0x7a, 0x41, 0x5a, 0x42, 0x67, 0x4e, 0x56, 0x0a, 0x42, 0x41, 0x4d, 0x54,
+	0x45, 0x6d, 0x4e, 0x76, 0x62, 0x6e, 0x52, 0x79, 0x61, 0x58, 0x5a, 0x6c, 0x5a, 0x43, 0x42, 0x70,
+	0x62, 0x6d, 0x35, 0x6c, 0x63, 0x69, 0x42, 0x6a, 0x59, 0x54, 0x41, 0x65, 0x46, 0x77, 0x30, 0x78,
+	0x4e, 0x6a, 0x41, 0x35, 0x4d, 0x6a, 0x63, 0x77, 0x4f, 0x54, 0x49, 0x78, 0x4d, 0x44, 0x5a, 0x61,
+	0x46, 0x77, 0x30, 0x78, 0x4e, 0x7a, 0x41, 0x35, 0x4d, 0x6a, 0x63, 0x77, 0x0a, 0x4f, 0x54, 0x49,
+	0x78, 0x4d, 0x44, 0x5a, 0x61, 0x4d, 0x42, 0x30, 0x78, 0x47, 0x7a, 0x41, 0x5a, 0x42, 0x67, 0x4e,
+	0x56, 0x42, 0x41, 0x4d, 0x54, 0x45, 0x6d, 0x4e, 0x76, 0x62, 0x6e, 0x52, 0x79, 0x61, 0x58, 0x5a,
+	0x6c, 0x5a, 0x43, 0x42, 0x70, 0x62, 0x6d, 0x35, 0x6c, 0x63, 0x69, 0x42, 0x6a, 0x59, 0x54, 0x42,
+	0x5a, 0x4d, 0x42, 0x4d, 0x47, 0x42, 0x79, 0x71, 0x47, 0x53, 0x4d, 0x34, 0x39, 0x0a, 0x41, 0x67,
+	0x45, 0x47, 0x43, 0x43, 0x71, 0x47, 0x53, 0x4d, 0x34, 0x39, 0x41, 0x77, 0x45, 0x48, 0x41, 0x30,
+	0x49, 0x41, 0x42, 0x4f, 0x55, 0x7a, 0x42, 0x77, 0x4a, 0x51, 0x6b, 0x70, 0x55, 0x69, 0x76, 0x6b,
+	0x65, 0x70, 0x4a, 0x51, 0x79, 0x7a, 0x76, 0x59, 0x64, 0x6b, 0x41, 0x4d, 0x38, 0x4c, 0x4a, 0x64,
+	0x77, 0x37, 0x72, 0x61, 0x71, 0x4f, 0x58, 0x39, 0x72, 0x46, 0x79, 0x58, 0x71, 0x4b, 0x0a, 0x38,
+	0x44, 0x52, 0x57, 0x50, 0x75, 0x71, 0x67, 0x79, 0x74, 0x32, 0x6e, 0x38, 0x34, 0x4c, 0x6b, 0x64,
+	0x35, 0x72, 0x78, 0x61, 0x70, 0x41, 0x62, 0x36, 0x63, 0x39, 0x45, 0x37, 0x66, 0x43, 0x38, 0x63,
+	0x34, 0x36, 0x71, 0x44, 0x34, 0x31, 0x45, 0x54, 0x61, 0x32, 0x6a, 0x4d, 0x6a, 0x41, 0x77, 0x4d,
+	0x41, 0x38, 0x47, 0x41, 0x31, 0x55, 0x64, 0x45, 0x77, 0x45, 0x42, 0x2f, 0x77, 0x51, 0x46, 0x0a,
+	0x4d, 0x41, 0x4d, 0x42, 0x41, 0x66, 0x38, 0x77, 0x48, 0x51, 0x59, 0x44, 0x56, 0x52, 0x30, 0x4f,
+	0x42, 0x42, 0x59, 0x45, 0x46, 0x50, 0x49, 0x4b, 0x67, 0x4c, 0x36, 0x78, 0x6f, 0x4d, 0x6b, 0x7a,
+	0x54, 0x6d, 0x56, 0x4c, 0x77, 0x72, 0x53, 0x4b, 0x64, 0x76, 0x58, 0x46, 0x45, 0x44, 0x73, 0x66,
+	0x4d, 0x41, 0x6f, 0x47, 0x43, 0x43, 0x71, 0x47, 0x53, 0x4d, 0x34, 0x39, 0x42, 0x41, 0x4d, 0x43,
+	0x0a, 0x41, 0x30, 0x67, 0x41, 0x4d, 0x45, 0x55, 0x43, 0x49, 0x45, 0x4a, 0x46, 0x64, 0x75, 0x32,
+	0x61, 0x61, 0x4e, 0x63, 0x41, 0x4b, 0x4e, 0x77, 0x4b, 0x4b, 0x75, 0x6d, 0x6d, 0x52, 0x33, 0x52,
+	0x59, 0x65, 0x4f, 0x49, 0x6b, 0x33, 0x45, 0x4c, 0x53, 0x61, 0x65, 0x46, 0x6e, 0x39, 0x6e, 0x6b,
+	0x6d, 0x38, 0x36, 0x39, 0x6c, 0x41, 0x69, 0x45, 0x41, 0x7a, 0x2b, 0x70, 0x2b, 0x6d, 0x39, 0x36,
+	0x78, 0x0a, 0x45, 0x63, 0x39, 0x4d, 0x64, 0x66, 0x6b, 0x61, 0x6c, 0x6e, 0x74, 0x71, 0x6d, 0x6d,
+	0x4b, 0x46, 0x33, 0x55, 0x59, 0x31, 0x2f, 0x6b, 0x65, 0x4f, 0x66, 0x59, 0x5a, 0x62, 0x6b, 0x4f,
+	0x6e, 0x46, 0x48, 0x45, 0x59, 0x3d, 0x0a, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x45, 0x4e, 0x44, 0x20,
+	0x43, 0x45, 0x52, 0x54, 0x49, 0x46, 0x49, 0x43, 0x41, 0x54, 0x45, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d,
+	0x0a, 0x30, 0x1e, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x39, 0x32, 0x37, 0x30, 0x39, 0x32, 0x35, 0x35,
+	0x32, 0x5a, 0x17, 0x0d, 0x31, 0x37, 0x30, 0x39, 0x32, 0x37, 0x30, 0x39, 0x32, 0x35, 0x35, 0x32,
+	0x5a, 0x30, 0x82, 0x02, 0x46, 0x31, 0x82, 0x02, 0x42, 0x30, 0x82, 0x02, 0x3e, 0x06, 0x03, 0x55,
+	0x04, 0x03, 0x0c, 0x82, 0x02, 0x35, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x76, 0x65, 0x64, 0x20,
+	0x6f, 0x75, 0x74, 0x65, 0x72, 0x20, 0x63, 0x61, 0x0a, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x42, 0x45,
+	0x47, 0x49, 0x4e, 0x20, 0x43, 0x45, 0x52, 0x54, 0x49, 0x46, 0x49, 0x43, 0x41, 0x54, 0x45, 0x2d,
+	0x2d, 0x2d, 0x2d, 0x2d, 0x0a, 0x4d, 0x49, 0x49, 0x42, 0x5a, 0x6a, 0x43, 0x43, 0x41, 0x51, 0x79,
+	0x67, 0x41, 0x77, 0x49, 0x42, 0x41, 0x67, 0x49, 0x4d, 0x56, 0x2b, 0x6f, 0x36, 0x41, 0x67, 0x51,
+	0x70, 0x74, 0x75, 0x63, 0x6c, 0x62, 0x5a, 0x34, 0x72, 0x4d, 0x41, 0x6f, 0x47, 0x43, 0x43, 0x71,
+	0x47, 0x53, 0x4d, 0x34, 0x39, 0x42, 0x41, 0x4d, 0x43, 0x4d, 0x42, 0x30, 0x78, 0x47, 0x7a, 0x41,
+	0x5a, 0x42, 0x67, 0x4e, 0x56, 0x0a, 0x42, 0x41, 0x4d, 0x54, 0x45, 0x6d, 0x4e, 0x76, 0x62, 0x6e,
+	0x52, 0x79, 0x61, 0x58, 0x5a, 0x6c, 0x5a, 0x43, 0x42, 0x70, 0x62, 0x6d, 0x35, 0x6c, 0x63, 0x69,
+	0x42, 0x6a, 0x59, 0x54, 0x41, 0x65, 0x46, 0x77, 0x30, 0x78, 0x4e, 0x6a, 0x41, 0x35, 0x4d, 0x6a,
+	0x63, 0x77, 0x4f, 0x54, 0x49, 0x78, 0x4d, 0x44, 0x5a, 0x61, 0x46, 0x77, 0x30, 0x78, 0x4e, 0x7a,
+	0x41, 0x35, 0x4d, 0x6a, 0x63, 0x77, 0x0a, 0x4f, 0x54, 0x49, 0x78, 0x4d, 0x44, 0x5a, 0x61, 0x4d,
+	0x42, 0x30, 0x78, 0x47, 0x7a, 0x41, 0x5a, 0x42, 0x67, 0x4e, 0x56, 0x42, 0x41, 0x4d, 0x54, 0x45,
+	0x6d, 0x4e, 0x76, 0x62, 0x6e, 0x52, 0x79, 0x61, 0x58, 0x5a, 0x6c, 0x5a, 0x43, 0x42, 0x70, 0x62,
+	0x6d, 0x35, 0x6c, 0x63, 0x69, 0x42, 0x6a, 0x59, 0x54, 0x42, 0x5a, 0x4d, 0x42, 0x4d, 0x47, 0x42,
+	0x79, 0x71, 0x47, 0x53, 0x4d, 0x34, 0x39, 0x0a, 0x41, 0x67, 0x45, 0x47, 0x43, 0x43, 0x71, 0x47,
+	0x53, 0x4d, 0x34, 0x39, 0x41, 0x77, 0x45, 0x48, 0x41, 0x30, 0x49, 0x41, 0x42, 0x4f, 0x55, 0x7a,
+	0x42, 0x77, 0x4a, 0x51, 0x6b, 0x70, 0x55, 0x69, 0x76, 0x6b, 0x65, 0x70, 0x4a, 0x51, 0x79, 0x7a,
+	0x76, 0x59, 0x64, 0x6b, 0x41, 0x4d, 0x38, 0x4c, 0x4a, 0x64, 0x77, 0x37, 0x72, 0x61, 0x71, 0x4f,
+	0x58, 0x39, 0x72, 0x46, 0x79, 0x58, 0x71, 0x4b, 0x0a, 0x38, 0x44, 0x52, 0x57, 0x50, 0x75, 0x71,
+	0x67, 0x79, 0x74, 0x32, 0x6e, 0x38, 0x34, 0x4c, 0x6b, 0x64, 0x35, 0x72, 0x78, 0x61, 0x70, 0x41,
+	0x62, 0x36, 0x63, 0x39, 0x45, 0x37, 0x66, 0x43, 0x38, 0x63, 0x34, 0x36, 0x71, 0x44, 0x34, 0x31,
+	0x45, 0x54, 0x61, 0x32, 0x6a, 0x4d, 0x6a, 0x41, 0x77, 0x4d, 0x41, 0x38, 0x47, 0x41, 0x31, 0x55,
+	0x64, 0x45, 0x77, 0x45, 0x42, 0x2f, 0x77, 0x51, 0x46, 0x0a, 0x4d, 0x41, 0x4d, 0x42, 0x41, 0x66,
+	0x38, 0x77, 0x48, 0x51, 0x59, 0x44, 0x56, 0x52, 0x30, 0x4f, 0x42, 0x42, 0x59, 0x45, 0x46, 0x50,
+	0x49, 0x4b, 0x67, 0x4c, 0x36, 0x78, 0x6f, 0x4d, 0x6b, 0x7a, 0x54, 0x6d, 0x56, 0x4c, 0x77, 0x72,
+	0x53, 0x4b, 0x64, 0x76, 0x58, 0x46, 0x45, 0x44, 0x73, 0x66, 0x4d, 0x41, 0x6f, 0x47, 0x43, 0x43,
+	0x71, 0x47, 0x53, 0x4d, 0x34, 0x39, 0x42, 0x41, 0x4d, 0x43, 0x0a, 0x41, 0x30, 0x67, 0x41, 0x4d,
+	0x45, 0x55, 0x43, 0x49, 0x45, 0x4a, 0x46, 0x64, 0x75, 0x32, 0x61, 0x61, 0x4e, 0x63, 0x41, 0x4b,
+	0x4e, 0x77, 0x4b, 0x4b, 0x75, 0x6d, 0x6d, 0x52, 0x33, 0x52, 0x59, 0x65, 0x4f, 0x49, 0x6b, 0x33,
+	0x45, 0x4c, 0x53, 0x61, 0x65, 0x46, 0x6e, 0x39, 0x6e, 0x6b, 0x6d, 0x38, 0x36, 0x39, 0x6c, 0x41,
+	0x69, 0x45, 0x41, 0x7a, 0x2b, 0x70, 0x2b, 0x6d, 0x39, 0x36, 0x78, 0x0a, 0x45, 0x63, 0x39, 0x4d,
+	0x64, 0x66, 0x6b, 0x61, 0x6c, 0x6e, 0x74, 0x71, 0x6d, 0x6d, 0x4b, 0x46, 0x33, 0x55, 0x59, 0x31,
+	0x2f, 0x6b, 0x65, 0x4f, 0x66, 0x59, 0x5a, 0x62, 0x6b, 0x4f, 0x6e, 0x46, 0x48, 0x45, 0x59, 0x3d,
+	0x0a, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x45, 0x4e, 0x44, 0x20, 0x43, 0x45, 0x52, 0x54, 0x49, 0x46,
+	0x49, 0x43, 0x41, 0x54, 0x45, 0x2d, 0x2d, 0x2d, 0x2d, 0x2d, 0x0a, 0x30, 0x59, 0x30, 0x13, 0x06,
+	0x07, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x02, 0x01, 0x06, 0x08, 0x2a, 0x86, 0x48, 0xce, 0x3d, 0x03,
+	0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0xfc, 0xc7, 0x64, 0xf8, 0x11, 0x1a, 0x27, 0x9e, 0x42, 0x2a,
+	0x23, 0xae, 0xcf, 0x61, 0x75, 0x5e, 0xb7, 0xe0, 0x11, 0xf1, 0x39, 0x92, 0xd1, 0x45, 0xe3, 0x51,
+	0xaa, 0xd6, 0x66, 0x46, 0x1e, 0xa6, 0x50, 0xb2, 0x6e, 0xf0, 0x08, 0xc0, 0x8d, 0x09, 0xdc, 0xb1,
+	0xf2, 0x95, 0xed, 0x2b, 0xdf, 0x83, 0xa8, 0x8e, 0x9b, 0x0f, 0x8a, 0x05, 0xc5, 0x6b, 0xe0, 0x9b,
+	0xc9, 0x64, 0xc1, 0x4c, 0x8e, 0xd9, 0xa3, 0x32, 0x30, 0x30, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d,
+	0x13, 0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30, 0x1d, 0x06, 0x03, 0x55,
+	0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x85, 0xf2, 0xf0, 0xac, 0xc5, 0x37, 0x20, 0x96, 0x5a, 0x1e,
+	0xa1, 0x80, 0xf2, 0x06, 0x2f, 0x99, 0xd4, 0x25, 0x5b, 0x37, 0x30, 0x0a, 0x06, 0x08, 0x2a, 0x86,
+	0x48, 0xce, 0x3d, 0x04, 0x03, 0x02, 0x03, 0x49, 0x00, 0x30, 0x46, 0x02, 0x21, 0x00, 0xb9, 0xd3,
+	0x11, 0x9f, 0x0c, 0x71, 0x61, 0x6d, 0xe3, 0xa9, 0xc2, 0xb6, 0x27, 0x6c, 0x53, 0x02, 0x6d, 0x73,
+	0x52, 0x0e, 0xfc, 0x8c, 0x44, 0xad, 0x5d, 0x77, 0xed, 0xfe, 0x31, 0x53, 0xbe, 0xcd, 0x02, 0x21,
+	0x00, 0xe2, 0xa7, 0x91, 0x40, 0x21, 0x45, 0xc3, 0xb2, 0xe9, 0x54, 0x5d, 0x09, 0xa0, 0x45, 0x4f,
+	0xc2, 0x9d, 0x0b, 0xba, 0xee, 0x7a, 0x66, 0xf5, 0xd3, 0x55, 0xd7, 0xf5, 0xab, 0x22, 0xb4, 0xbd,
+	0x05,
+};
+
 static const char test_text[] = "This is the file text";
 
 static const char test_eku_server_and_client[] = {
diff --git a/trust/token.c b/trust/token.c
index 47b80d8..df6f727 100644
--- a/trust/token.c
+++ b/trust/token.c
@@ -840,7 +840,7 @@ p11_token_new (CK_SLOT_ID slot,
 	token->parser = p11_parser_new (p11_builder_get_cache (token->builder));
 	return_val_if_fail (token->parser != NULL, NULL);
 	p11_parser_formats (token->parser, p11_parser_format_persist,
-	                    p11_parser_format_pem, p11_parser_format_x509, NULL);
+	                    p11_parser_format_x509, p11_parser_format_pem, NULL);
 
 	token->loaded = p11_dict_new (p11_dict_str_hash, p11_dict_str_equal, free, free);
 	return_val_if_fail (token->loaded != NULL, NULL);