[LTP] [PATCH 23/33] keyctl30: Test KEYCTL_PKEY_QUERY on private key

[Andrea Cervesato <andrea.cervesato@suse.de>]

From: Andrea Cervesato <andrea.cervesato@suse.com>

Test KEYCTL_PKEY_QUERY operation on an RSA-2048 PKCS#8 private key:
verify key_size is 2048, supported_ops contains DECRYPT and SIGN,
and max_dec_size/max_sig_size are 256.

Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
 runtest/syscalls                                   |  1 +
 testcases/kernel/syscalls/keyctl/.gitignore        |  1 +
 testcases/kernel/syscalls/keyctl/keyctl30.c        | 86 ++++++++++++++++++++++
 .../kernel/syscalls/keyctl/keyctl_pkey_data.h      | 84 +++++++++++++++++++++
 4 files changed, 172 insertions(+)

diff --git a/runtest/syscalls b/runtest/syscalls
index 432369e63..15f8c892c 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -747,6 +747,7 @@ keyctl26 keyctl26
 keyctl27 keyctl27
 keyctl28 keyctl28
 keyctl29 keyctl29
+keyctl30 keyctl30
 
 kcmp01 kcmp01
 kcmp02 kcmp02
diff --git a/testcases/kernel/syscalls/keyctl/.gitignore b/testcases/kernel/syscalls/keyctl/.gitignore
index 91310b001..d5b6955f3 100644
--- a/testcases/kernel/syscalls/keyctl/.gitignore
+++ b/testcases/kernel/syscalls/keyctl/.gitignore
@@ -27,3 +27,4 @@
 /keyctl27
 /keyctl28
 /keyctl29
+/keyctl30
diff --git a/testcases/kernel/syscalls/keyctl/keyctl30.c b/testcases/kernel/syscalls/keyctl/keyctl30.c
new file mode 100644
index 000000000..e46206ca9
--- /dev/null
+++ b/testcases/kernel/syscalls/keyctl/keyctl30.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2026 Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * Test ``KEYCTL_PKEY_QUERY`` on private key of :manpage:`keyctl(2)`.
+ *
+ * Requires root (CAP_SYS_MODULE) to load the ``pkcs8_key_parser`` module.
+ *
+ * [Algorithm]
+ *
+ * - query an RSA-2048 PKCS#8 private key
+ * - verify ``key_size`` is 2048 bits
+ * - verify ``supported_ops`` contains ``KEYCTL_SUPPORTS_DECRYPT`` and
+ *   ``KEYCTL_SUPPORTS_SIGN``
+ * - verify ``max_dec_size`` is 256 bytes
+ * - verify ``max_sig_size`` is 256 bytes
+ */
+
+#include "keyctl_common.h"
+#include "keyctl_pkey_data.h"
+#include "tst_module.h"
+
+static key_serial_t priv_key;
+static struct keyctl_pkey_query *query_buf;
+
+static void setup(void)
+{
+	SAFE_KEYCTL(KEYCTL_JOIN_SESSION_KEYRING, 0, 0, 0, 0);
+
+	tst_modprobe("pkcs8_key_parser", NULL);
+
+	priv_key = add_asymmetric_key_or_tconf("priv", rsa2048_pkcs8,
+					       sizeof(rsa2048_pkcs8),
+					       "CONFIG_PKCS8_PRIVATE_KEY_PARSER");
+}
+
+static void run(void)
+{
+	memset(query_buf, 0, sizeof(*query_buf));
+
+	TST_EXP_EQ_LI_SILENT(keyctl(KEYCTL_PKEY_QUERY, (unsigned long)priv_key,
+				    0, (unsigned long)"enc=pkcs1",
+				    (unsigned long)query_buf), 0);
+	if (!TST_PASS)
+		return;
+
+	TST_EXP_EQ_LU_SILENT(query_buf->key_size, 2048);
+	if (!TST_PASS)
+		return;
+
+	TST_EXP_EXPR(query_buf->supported_ops & KEYCTL_SUPPORTS_DECRYPT,
+		     "KEYCTL_PKEY_QUERY supports DECRYPT");
+
+	TST_EXP_EXPR(query_buf->supported_ops & KEYCTL_SUPPORTS_SIGN,
+		     "KEYCTL_PKEY_QUERY supports SIGN");
+
+	TST_EXP_EQ_LU_SILENT(query_buf->max_dec_size, 256);
+	if (!TST_PASS)
+		return;
+
+	TST_EXP_EQ_LU_SILENT(query_buf->max_sig_size, 256);
+	if (!TST_PASS)
+		return;
+
+	tst_res(TPASS, "KEYCTL_PKEY_QUERY on PKCS#8 private key returned valid parameters");
+}
+
+static struct tst_test test = {
+	.setup = setup,
+	.test_all = run,
+	.min_kver = "4.20",
+	.needs_root = 1,
+	.needs_kconfigs = (const char *[]) {
+		"CONFIG_KEYS=y",
+		"CONFIG_ASYMMETRIC_KEY_TYPE=y",
+		"CONFIG_PKCS8_PRIVATE_KEY_PARSER",
+		"CONFIG_CRYPTO_RSA",
+		NULL
+	},
+	.bufs = (struct tst_buffers []) {
+		{&query_buf, .size = sizeof(*query_buf)},
+		{},
+	},
+};
diff --git a/testcases/kernel/syscalls/keyctl/keyctl_pkey_data.h b/testcases/kernel/syscalls/keyctl/keyctl_pkey_data.h
index f5e55d94e..75481b89a 100644
--- a/testcases/kernel/syscalls/keyctl/keyctl_pkey_data.h
+++ b/testcases/kernel/syscalls/keyctl/keyctl_pkey_data.h
@@ -65,4 +65,88 @@ static const unsigned char rsa2048_cert[] = {
 	0x2c, 0xa7, 0x23, 0xae, 0x7b, 0xfd, 0xd5, 0x09, 0x09, 0x70, 0x28,
 };
 
+/*
+ * RSA-2048 unencrypted PKCS#8 private key in DER format generated using:
+ * openssl pkcs8 -topk8 -nocrypt -outform der
+ */
+static const unsigned char rsa2048_pkcs8[] = {
+	0x30, 0x82, 0x04, 0xbe, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
+	0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82, 0x04, 0xa8, 0x30, 0x82, 0x04, 0xa4, 0x02, 0x01,
+	0x00, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd3, 0x97, 0x61, 0x14, 0x08, 0xb7, 0xca, 0x73, 0x54, 0xd0,
+	0x39, 0xb9, 0xaf, 0x62, 0x12, 0xcc, 0x90, 0xde, 0x86, 0xeb, 0x13, 0x91, 0x06, 0x83, 0xf3, 0x41,
+	0x48, 0xd7, 0xf7, 0xc5, 0x50, 0x26, 0x1f, 0x2d, 0x53, 0x09, 0x43, 0x59, 0x25, 0x81, 0x04, 0x98,
+	0x84, 0x4c, 0x10, 0x32, 0xee, 0x63, 0x60, 0xde, 0x1a, 0x76, 0x63, 0xc3, 0x5d, 0x79, 0x12, 0xf2,
+	0xbf, 0x33, 0xd6, 0x4c, 0xf2, 0x47, 0x56, 0x03, 0x41, 0x51, 0x74, 0x7f, 0x7d, 0x80, 0x64, 0x32,
+	0x1c, 0x1c, 0x19, 0xac, 0x12, 0x08, 0xd6, 0xd2, 0x27, 0x21, 0x6c, 0xda, 0x40, 0xea, 0x3b, 0x9c,
+	0x7f, 0xa8, 0xee, 0x86, 0x0a, 0x18, 0xca, 0xc3, 0xb6, 0x6a, 0xe8, 0x90, 0xcc, 0xaf, 0x44, 0x1c,
+	0x03, 0xdd, 0x57, 0xfc, 0x67, 0xba, 0xae, 0x5b, 0x7b, 0x3e, 0xc3, 0xda, 0xcc, 0xcf, 0x96, 0x90,
+	0xad, 0x72, 0x4d, 0x44, 0x7d, 0x46, 0xa5, 0x7c, 0x83, 0x4b, 0x74, 0x5d, 0x16, 0x20, 0x33, 0x4b,
+	0x8a, 0xdf, 0x8b, 0x14, 0x21, 0x6f, 0xbb, 0xb3, 0xd9, 0x97, 0xef, 0xd2, 0xbf, 0x4f, 0x41, 0x01,
+	0x86, 0x69, 0xa0, 0xe6, 0xce, 0x7b, 0xdd, 0xb9, 0x5c, 0x35, 0xce, 0x2f, 0x0c, 0x5d, 0x23, 0x60,
+	0x71, 0xd7, 0x09, 0x05, 0x1c, 0x70, 0xb4, 0x02, 0xaf, 0x75, 0xb6, 0xcd, 0x2f, 0xbf, 0xba, 0xd0,
+	0x35, 0xc6, 0xd0, 0x09, 0x50, 0xcf, 0xf9, 0xd9, 0xe8, 0xdc, 0x3b, 0xca, 0x19, 0x45, 0x63, 0x1c,
+	0x88, 0xc9, 0x4c, 0xa7, 0x09, 0xe6, 0x2c, 0x7e, 0x81, 0xd0, 0x06, 0xe4, 0x37, 0xb9, 0x42, 0xc9,
+	0x3b, 0x5c, 0xb5, 0x70, 0xc4, 0xb5, 0x20, 0x14, 0xa1, 0x51, 0x37, 0xf2, 0x58, 0xa8, 0x9c, 0x11,
+	0xc1, 0x70, 0xe6, 0xb0, 0x45, 0xf3, 0xc5, 0x23, 0xe7, 0xee, 0xa7, 0x9d, 0x9b, 0x2b, 0x81, 0xef,
+	0xeb, 0x63, 0xf2, 0x93, 0x15, 0x21, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x82, 0x01, 0x00, 0x52,
+	0xb0, 0xba, 0x53, 0xa6, 0x04, 0x8d, 0xad, 0xfc, 0xdb, 0x53, 0x73, 0xe9, 0xc2, 0x9e, 0x2e, 0x2b,
+	0xff, 0x8b, 0x22, 0x9b, 0x86, 0xf5, 0xd0, 0xe3, 0x64, 0x04, 0x1f, 0xc2, 0xc8, 0xed, 0xc5, 0xb8,
+	0x31, 0x72, 0x5e, 0x10, 0x5f, 0xea, 0x74, 0x3d, 0x63, 0x8d, 0x70, 0x5c, 0x74, 0x4b, 0x0d, 0xb3,
+	0x71, 0x99, 0x4d, 0xe3, 0x37, 0x1a, 0x74, 0x92, 0x9f, 0x23, 0x72, 0x12, 0xb2, 0x07, 0x8d, 0x31,
+	0x64, 0x1c, 0x46, 0xc5, 0x0c, 0x7d, 0xf3, 0x8b, 0x34, 0xba, 0x1f, 0x91, 0x38, 0xd9, 0xe3, 0x72,
+	0x70, 0xb6, 0xb2, 0x2d, 0x64, 0x2e, 0x32, 0x5c, 0x11, 0x91, 0x22, 0x67, 0xf5, 0x22, 0x45, 0x06,
+	0x18, 0xee, 0x55, 0x61, 0x86, 0x15, 0x37, 0xf9, 0x9a, 0x29, 0x38, 0x7b, 0x86, 0x3c, 0xd3, 0x8c,
+	0x08, 0x5c, 0x65, 0xef, 0x0c, 0xb7, 0x35, 0xf9, 0x55, 0x99, 0x33, 0x2e, 0x57, 0x31, 0xcd, 0x90,
+	0x0e, 0x99, 0xcd, 0xb3, 0x5f, 0xb5, 0x7e, 0x16, 0x86, 0x73, 0x47, 0xc0, 0xab, 0x6b, 0x53, 0xa1,
+	0x8f, 0x35, 0x34, 0xd3, 0x82, 0x28, 0x7c, 0x65, 0x8e, 0xa8, 0x02, 0xe2, 0xf3, 0x83, 0x6d, 0x54,
+	0x43, 0x23, 0x45, 0x95, 0xf1, 0x74, 0xbc, 0xf1, 0x7d, 0x64, 0x16, 0xe5, 0x01, 0xc6, 0x5a, 0xbb,
+	0x19, 0xfa, 0x54, 0x01, 0xa4, 0x26, 0x5a, 0x2f, 0xa4, 0x20, 0xb7, 0x4c, 0x61, 0x2c, 0x2a, 0x78,
+	0xed, 0x2f, 0xcb, 0x67, 0x26, 0xf1, 0x6b, 0x0c, 0xe3, 0x8a, 0x27, 0x9e, 0x4f, 0x00, 0x06, 0x4e,
+	0x1d, 0x58, 0x07, 0x0e, 0x1c, 0x0d, 0x0c, 0x8c, 0x3a, 0xa7, 0x1d, 0xbe, 0xb8, 0x16, 0xdf, 0xe1,
+	0xb3, 0x13, 0x09, 0x6a, 0xe7, 0x50, 0x80, 0x2f, 0xa1, 0x38, 0x22, 0xae, 0x2d, 0x58, 0x52, 0x07,
+	0x96, 0x10, 0x98, 0x71, 0xe1, 0xce, 0x26, 0x88, 0x4c, 0x5e, 0x11, 0x5f, 0x6c, 0xd2, 0x31, 0x02,
+	0x81, 0x81, 0x00, 0xf3, 0x64, 0x07, 0x8c, 0x91, 0x3c, 0x5a, 0x48, 0x14, 0x4a, 0xc1, 0x4a, 0x1a,
+	0x93, 0xe5, 0xb8, 0x3a, 0x3c, 0xfe, 0x41, 0x60, 0x49, 0x71, 0xcc, 0xee, 0xaf, 0x0e, 0xac, 0x0c,
+	0x85, 0x51, 0x48, 0xf9, 0x36, 0xcf, 0x8c, 0xc5, 0x58, 0x48, 0xa2, 0x49, 0x46, 0xd1, 0x33, 0x92,
+	0x8c, 0x40, 0xfa, 0xf0, 0x76, 0xc1, 0x88, 0x8f, 0x23, 0x06, 0x8b, 0x76, 0x15, 0x89, 0xc0, 0xcd,
+	0x4b, 0x61, 0xd8, 0xc6, 0xa2, 0xcf, 0x9c, 0x04, 0x40, 0x3b, 0x7a, 0x24, 0xc1, 0x97, 0xb9, 0x36,
+	0xa6, 0x8b, 0xff, 0xe7, 0xef, 0xa5, 0x56, 0x3c, 0x55, 0xbf, 0x6d, 0x74, 0x33, 0xeb, 0x67, 0xb3,
+	0x4a, 0xfe, 0x81, 0xaa, 0xad, 0xd9, 0x43, 0x23, 0x59, 0xef, 0x51, 0x99, 0x2b, 0x58, 0xa6, 0xc1,
+	0x9c, 0x09, 0x5c, 0x88, 0xa0, 0x71, 0x1c, 0x1e, 0x94, 0x39, 0xcd, 0x82, 0x7d, 0xea, 0x41, 0xa8,
+	0x9e, 0x05, 0x17, 0x02, 0x81, 0x81, 0x00, 0xde, 0x8d, 0x9c, 0x20, 0xa1, 0x2f, 0x47, 0x3d, 0xac,
+	0x5f, 0x15, 0xce, 0x55, 0x52, 0x6a, 0x2f, 0x3d, 0xa0, 0xb0, 0x84, 0x92, 0x6c, 0xd6, 0x0f, 0x3c,
+	0x2e, 0x96, 0xc0, 0x26, 0x16, 0xa9, 0x0c, 0xc0, 0xec, 0x06, 0x50, 0xe7, 0x58, 0x1d, 0xfb, 0xcc,
+	0x9a, 0x64, 0x2f, 0x1b, 0x3a, 0x69, 0xb5, 0x51, 0xca, 0xf7, 0x2e, 0xa5, 0x01, 0x1e, 0xc9, 0x23,
+	0x85, 0x88, 0x86, 0x9e, 0x95, 0x8c, 0x03, 0xfb, 0xaf, 0x46, 0x6c, 0x7c, 0x9a, 0x4b, 0x00, 0xb7,
+	0x27, 0x18, 0x73, 0xea, 0x1d, 0xc6, 0x55, 0x1d, 0x4c, 0xca, 0x70, 0xb1, 0xb2, 0x76, 0x21, 0x92,
+	0xf0, 0x6f, 0xa8, 0x81, 0x82, 0x6f, 0x52, 0x70, 0x36, 0xe0, 0x66, 0x0f, 0x4f, 0x7d, 0xda, 0xf2,
+	0xbb, 0xca, 0xaa, 0x2d, 0x3c, 0x27, 0x2a, 0xc4, 0xa6, 0x16, 0x0a, 0xec, 0x91, 0x46, 0xbc, 0x7d,
+	0x32, 0x87, 0xd0, 0x3b, 0x80, 0x8a, 0x87, 0x02, 0x81, 0x81, 0x00, 0xcf, 0x07, 0x6d, 0x2c, 0x72,
+	0x75, 0xc5, 0xcd, 0xbe, 0x05, 0x00, 0x79, 0x4a, 0x36, 0x37, 0x97, 0x07, 0x62, 0xce, 0x5b, 0x49,
+	0xcd, 0xef, 0x51, 0x04, 0x4e, 0x3f, 0xca, 0xb5, 0x33, 0xc9, 0xba, 0xaa, 0xd1, 0xa6, 0xa5, 0xf5,
+	0x4f, 0x6d, 0x29, 0x2d, 0xef, 0x61, 0x0f, 0xdf, 0x3e, 0x12, 0x1f, 0xe1, 0xdf, 0x02, 0x2c, 0x68,
+	0xa4, 0xc0, 0x72, 0x6c, 0x55, 0x51, 0xc1, 0x80, 0x5e, 0xf8, 0xb1, 0xed, 0xf4, 0x9b, 0x67, 0xf8,
+	0x6d, 0xb2, 0xa9, 0xe9, 0x0e, 0x0b, 0x42, 0xee, 0x6b, 0xa8, 0x76, 0x5b, 0x11, 0x8b, 0xaf, 0xd8,
+	0xce, 0x8f, 0x70, 0x49, 0x01, 0xc8, 0xe1, 0x82, 0xae, 0xed, 0xe1, 0xda, 0x0e, 0xda, 0xd9, 0xb2,
+	0xfe, 0x53, 0x05, 0x33, 0xa6, 0x9d, 0x57, 0xeb, 0x24, 0x11, 0x0a, 0x76, 0xe5, 0x12, 0x91, 0x7a,
+	0xa9, 0x56, 0xa9, 0xaa, 0xaf, 0xf4, 0x4d, 0x39, 0x62, 0x80, 0xad, 0x02, 0x81, 0x81, 0x00, 0xc6,
+	0x20, 0x7b, 0xa5, 0xf0, 0xd9, 0x0e, 0x2b, 0x31, 0x91, 0x54, 0xf0, 0x63, 0xb5, 0x03, 0x23, 0x1b,
+	0x52, 0x3a, 0xd3, 0x4b, 0x27, 0xe9, 0x49, 0x96, 0xe2, 0x43, 0x02, 0xbc, 0xe5, 0xdf, 0x89, 0xa3,
+	0x16, 0x7c, 0x68, 0xfa, 0x0b, 0xd0, 0x65, 0xa2, 0x38, 0xb0, 0x87, 0xdf, 0x4d, 0x99, 0x5d, 0xfa,
+	0x7b, 0x1e, 0xa3, 0x3f, 0xf2, 0x47, 0x5d, 0xf9, 0x69, 0x9f, 0xa9, 0x78, 0xf4, 0xd9, 0xb9, 0x92,
+	0x0e, 0xf0, 0x3b, 0x14, 0x92, 0xa7, 0xc2, 0xf3, 0x4a, 0xb2, 0xd2, 0x3e, 0xd2, 0x53, 0x06, 0xe3,
+	0x16, 0xc2, 0x02, 0xa1, 0xaf, 0xa6, 0xcb, 0x2c, 0xed, 0x2f, 0xfa, 0x6b, 0x91, 0x9b, 0x59, 0x60,
+	0xdc, 0xf9, 0xd8, 0xe2, 0x38, 0x7a, 0x6a, 0xb9, 0x3d, 0xc5, 0xa6, 0xca, 0xae, 0x8a, 0x8f, 0xe0,
+	0x91, 0x9b, 0x7e, 0x0e, 0x2d, 0x27, 0x34, 0x16, 0xa1, 0x2d, 0x97, 0x8b, 0xe1, 0x5b, 0x71, 0x02,
+	0x81, 0x80, 0x34, 0xb5, 0x23, 0xd0, 0x7f, 0xa5, 0x1f, 0x3f, 0xa2, 0xfc, 0xb8, 0x50, 0x5f, 0x16,
+	0x76, 0x65, 0x67, 0x48, 0x62, 0xbe, 0xf8, 0x98, 0x07, 0x5c, 0xa9, 0xc2, 0x79, 0x59, 0xda, 0xa0,
+	0xb8, 0x1b, 0x50, 0x73, 0xd6, 0x74, 0x17, 0xba, 0x09, 0xdb, 0x08, 0xc9, 0xfb, 0xe5, 0x2c, 0xe5,
+	0xea, 0xde, 0x32, 0x1a, 0x51, 0xdf, 0xb4, 0xa8, 0x4e, 0xb5, 0x93, 0x2d, 0x58, 0x90, 0x36, 0xaa,
+	0xa4, 0x12, 0x53, 0x54, 0x3d, 0xb0, 0xbc, 0x52, 0xb3, 0x9a, 0x0b, 0x6e, 0x73, 0xb2, 0x57, 0x58,
+	0xbe, 0xb8, 0xfc, 0xa0, 0xaa, 0x02, 0x69, 0xea, 0xc4, 0x1b, 0xe4, 0x3e, 0x42, 0xf0, 0xf8, 0x2d,
+	0xa2, 0xb3, 0xa9, 0x3e, 0x57, 0xfe, 0x1a, 0xe9, 0xa6, 0xca, 0x05, 0x7f, 0x9b, 0x60, 0xd7, 0x28,
+	0x4a, 0x6a, 0xd7, 0xf4, 0xe4, 0xa1, 0x5d, 0x5c, 0x4f, 0xed, 0xd3, 0xaa, 0xb7, 0xb9, 0xfc, 0x87,
+	0xcd, 0xc5,
+};
+
 #endif /* KEYCTL_PKEY_DATA_H__ */

-- 
2.51.0


-- 
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