From: Andrea Cervesato <andrea.cervesato@suse.de>
To: Linux Test Project <ltp@lists.linux.it>
Subject: [LTP] [PATCH 15/33] keyctl23: Test KEYCTL_RESTRICT_KEYRING builtin_trusted
Date: Wed, 02 Sep 2026 13:04:30 +0200 [thread overview]
Message-ID: <20260902-keyctl_coverage-v1-15-d29dfa2ebcef@suse.com> (raw)
In-Reply-To: <20260902-keyctl_coverage-v1-0-d29dfa2ebcef@suse.com>
From: Andrea Cervesato <andrea.cervesato@suse.com>
Test KEYCTL_RESTRICT_KEYRING builtin_trusted restriction: verify that
restricting a keyring with asymmetric builtin_trusted allows only
trusted asymmetric keys, rejecting user keys with EOPNOTSUPP and
untrusted certs with ENOKEY.
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
runtest/syscalls | 1 +
testcases/kernel/syscalls/keyctl/.gitignore | 1 +
testcases/kernel/syscalls/keyctl/keyctl23.c | 142 ++++++++++++++++++++++++++++
3 files changed, 144 insertions(+)
diff --git a/runtest/syscalls b/runtest/syscalls
index 262ef967d..f7c4830a9 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -740,6 +740,7 @@ keyctl19 keyctl19
keyctl20 keyctl20
keyctl21 keyctl21
keyctl22 keyctl22
+keyctl23 keyctl23
kcmp01 kcmp01
kcmp02 kcmp02
diff --git a/testcases/kernel/syscalls/keyctl/.gitignore b/testcases/kernel/syscalls/keyctl/.gitignore
index 82a74e4a3..803e4e94c 100644
--- a/testcases/kernel/syscalls/keyctl/.gitignore
+++ b/testcases/kernel/syscalls/keyctl/.gitignore
@@ -20,3 +20,4 @@
/keyctl20
/keyctl21
/keyctl22
+/keyctl23
diff --git a/testcases/kernel/syscalls/keyctl/keyctl23.c b/testcases/kernel/syscalls/keyctl/keyctl23.c
new file mode 100644
index 000000000..76e0f8954
--- /dev/null
+++ b/testcases/kernel/syscalls/keyctl/keyctl23.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2026 Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+
+/*\
+ * Test ``KEYCTL_RESTRICT_KEYRING`` builtin_trusted of :manpage:`keyctl(2)`.
+ *
+ * Requires root (CAP_SYS_MODULE) to load the ``x509_key_parser`` module.
+ *
+ * [Algorithm]
+ *
+ * - restrict a keyring with ``asymmetric`` and ``builtin_trusted``, verify
+ * linking a user key fails with ``EOPNOTSUPP`` and adding an untrusted
+ * cert fails with ``ENOKEY``
+ */
+
+#include "keyctl_common.h"
+#include "tst_module.h"
+
+#define PAYLOAD "payload"
+
+/*
+ * Self-signed RSA-2048 X.509 certificate in DER format generated using:
+ * openssl req -x509 -newkey rsa:2048 -subj "/CN=ltp-keyctl23-untrusted" \
+ * -days 36500 -nodes -batch -outform der
+ *
+ * Used only as an untrusted certificate to verify that add_key() on a
+ * keyring restricted with builtin_trusted rejects it with ENOKEY.
+ */
+static const unsigned char untrusted_cert[] = {
+ 0x30, 0x82, 0x03, 0x25, 0x30, 0x82, 0x02, 0x0d, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x14, 0x52,
+ 0xad, 0xef, 0x01, 0xca, 0xbb, 0x64, 0x17, 0xa7, 0x1a, 0xa7, 0xcb, 0x2f, 0x82, 0x44, 0x6e, 0xec,
+ 0x5a, 0x2e, 0x2c, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x0b,
+ 0x05, 0x00, 0x30, 0x21, 0x31, 0x1f, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x04, 0x03, 0x0c, 0x16, 0x6c,
+ 0x74, 0x70, 0x2d, 0x6b, 0x65, 0x79, 0x63, 0x74, 0x6c, 0x32, 0x33, 0x2d, 0x75, 0x6e, 0x74, 0x72,
+ 0x75, 0x73, 0x74, 0x65, 0x64, 0x30, 0x20, 0x17, 0x0d, 0x32, 0x36, 0x30, 0x39, 0x30, 0x32, 0x30,
+ 0x39, 0x32, 0x33, 0x34, 0x39, 0x5a, 0x18, 0x0f, 0x32, 0x31, 0x32, 0x36, 0x30, 0x38, 0x30, 0x39,
+ 0x30, 0x39, 0x32, 0x33, 0x34, 0x39, 0x5a, 0x30, 0x21, 0x31, 0x1f, 0x30, 0x1d, 0x06, 0x03, 0x55,
+ 0x04, 0x03, 0x0c, 0x16, 0x6c, 0x74, 0x70, 0x2d, 0x6b, 0x65, 0x79, 0x63, 0x74, 0x6c, 0x32, 0x33,
+ 0x2d, 0x75, 0x6e, 0x74, 0x72, 0x75, 0x73, 0x74, 0x65, 0x64, 0x30, 0x82, 0x01, 0x22, 0x30, 0x0d,
+ 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01,
+ 0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xd5, 0xee, 0x8d, 0xec, 0x85,
+ 0x8e, 0x29, 0xc7, 0xe7, 0xf8, 0x3f, 0xed, 0xc8, 0x82, 0xb2, 0x17, 0x95, 0xf4, 0xe0, 0x99, 0x02,
+ 0x84, 0xc5, 0xb3, 0x46, 0x62, 0x8c, 0x8a, 0xd3, 0x89, 0xd5, 0x62, 0x25, 0xa7, 0xc8, 0x92, 0xcc,
+ 0xc5, 0x64, 0x20, 0x80, 0xb7, 0xf3, 0xc2, 0x40, 0xdc, 0xf0, 0xf0, 0xd8, 0x85, 0x5f, 0x58, 0x61,
+ 0x77, 0xd6, 0xd5, 0x3a, 0x32, 0xec, 0x81, 0x15, 0x25, 0xb4, 0x08, 0x21, 0x6d, 0xf3, 0xd6, 0x80,
+ 0xa6, 0x91, 0x5a, 0x53, 0x9e, 0x54, 0x49, 0x5b, 0x91, 0x6b, 0x74, 0x0b, 0xb5, 0x99, 0xd5, 0x49,
+ 0x46, 0x41, 0x56, 0x67, 0xb4, 0xed, 0x17, 0x82, 0x96, 0x03, 0x40, 0xd7, 0x0d, 0x0a, 0x00, 0x95,
+ 0x3c, 0xb7, 0x75, 0x9e, 0x61, 0xab, 0xe9, 0x10, 0x4a, 0xa9, 0x90, 0x21, 0xd2, 0xb4, 0x3d, 0xd0,
+ 0x83, 0x48, 0x0c, 0x59, 0xa9, 0xd7, 0xbe, 0x7b, 0x4c, 0x75, 0xf0, 0xd1, 0x8a, 0x29, 0x1c, 0x06,
+ 0x35, 0x29, 0x6d, 0x3c, 0x6e, 0xb9, 0xce, 0x11, 0xa9, 0x1b, 0x4d, 0xf7, 0xfd, 0x6d, 0x2e, 0x02,
+ 0x7f, 0xbe, 0x45, 0xb7, 0x11, 0xae, 0x1d, 0xbb, 0x70, 0x02, 0xae, 0xc1, 0xb3, 0x31, 0x3d, 0x99,
+ 0xd9, 0x70, 0x01, 0xbd, 0xea, 0xd3, 0x0d, 0x04, 0xe0, 0x2f, 0xac, 0x79, 0xe4, 0xb2, 0x0c, 0x96,
+ 0xba, 0x66, 0x9e, 0xcf, 0x72, 0x13, 0xa3, 0x37, 0x44, 0x03, 0x2d, 0xe9, 0x5c, 0x71, 0x6f, 0x35,
+ 0x71, 0xf8, 0xdc, 0x58, 0xa3, 0x1f, 0x57, 0x88, 0x59, 0x79, 0xe6, 0x7e, 0x37, 0x9b, 0xc9, 0xa3,
+ 0x36, 0x03, 0x5c, 0xcb, 0x30, 0x92, 0x5e, 0x9e, 0x43, 0x48, 0xa2, 0x3e, 0x7f, 0xdc, 0xb8, 0xe3,
+ 0x6a, 0xe6, 0x8c, 0x18, 0xb2, 0x42, 0x4c, 0xbb, 0x2d, 0x6a, 0x6c, 0x5f, 0xd1, 0xc1, 0xd5, 0x33,
+ 0x3b, 0xdb, 0x8c, 0x3c, 0xa2, 0xec, 0xaa, 0xed, 0xce, 0xe1, 0xd1, 0x02, 0x03, 0x01, 0x00, 0x01,
+ 0xa3, 0x53, 0x30, 0x51, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0xd3,
+ 0x8d, 0xd1, 0xe4, 0x77, 0x4e, 0xe2, 0xb2, 0xb6, 0xab, 0x31, 0x58, 0x69, 0x7b, 0x27, 0x31, 0xce,
+ 0x00, 0xcd, 0x60, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14,
+ 0xd3, 0x8d, 0xd1, 0xe4, 0x77, 0x4e, 0xe2, 0xb2, 0xb6, 0xab, 0x31, 0x58, 0x69, 0x7b, 0x27, 0x31,
+ 0xce, 0x00, 0xcd, 0x60, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x05,
+ 0x30, 0x03, 0x01, 0x01, 0xff, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+ 0x01, 0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00, 0x1e, 0xb9, 0x52, 0x16, 0xf2, 0xef, 0xca,
+ 0xbc, 0x35, 0x93, 0xb4, 0x38, 0xb8, 0xab, 0xfe, 0x73, 0x1a, 0x06, 0x50, 0x99, 0x58, 0xc4, 0xa8,
+ 0xf4, 0x26, 0xb1, 0xe1, 0x8e, 0x0b, 0xd3, 0xe7, 0xa8, 0x8d, 0x1f, 0xa0, 0x79, 0x4c, 0x9f, 0xdd,
+ 0x3a, 0xf0, 0xb7, 0xf2, 0x18, 0xfc, 0x99, 0x11, 0x45, 0x8f, 0xeb, 0xc9, 0xf2, 0x48, 0x2e, 0x4a,
+ 0x7b, 0x24, 0x37, 0xa4, 0xbc, 0x52, 0x96, 0x80, 0x76, 0x46, 0x59, 0x27, 0xb5, 0xa0, 0x07, 0x5b,
+ 0x6c, 0x38, 0x5c, 0xde, 0x95, 0x76, 0xfc, 0x21, 0xb8, 0x1e, 0x7e, 0x13, 0x3e, 0x59, 0x95, 0xf9,
+ 0x39, 0xdb, 0xd5, 0x41, 0x3d, 0x8d, 0xfd, 0x4c, 0x1a, 0x4b, 0xdd, 0x41, 0x3b, 0x27, 0x58, 0xf8,
+ 0x72, 0xa3, 0x70, 0x97, 0xc6, 0xb9, 0x0e, 0x4e, 0x3c, 0x08, 0xba, 0x2f, 0xa9, 0x55, 0x6d, 0x23,
+ 0xdd, 0xc4, 0x0a, 0x43, 0xad, 0x20, 0x75, 0x0d, 0xea, 0xbc, 0x49, 0x6c, 0xd2, 0x87, 0x59, 0x46,
+ 0x72, 0x3e, 0x77, 0x9b, 0x29, 0x63, 0x38, 0x0a, 0x2f, 0x61, 0xcc, 0xda, 0xd0, 0x21, 0x47, 0x6f,
+ 0x9f, 0x19, 0x26, 0x0c, 0xbb, 0x77, 0x22, 0x8d, 0xc7, 0x65, 0x01, 0x25, 0x4b, 0x69, 0x38, 0xae,
+ 0x6e, 0x16, 0x4f, 0x70, 0x35, 0xab, 0xea, 0x76, 0xe4, 0x37, 0xe4, 0x92, 0x6b, 0xf0, 0x6e, 0xc5,
+ 0x4c, 0xc1, 0x37, 0xc1, 0x28, 0xa6, 0x78, 0xc7, 0x90, 0xb4, 0xea, 0xbb, 0x8d, 0x12, 0xe1, 0x30,
+ 0xe1, 0x7b, 0x76, 0xc3, 0x65, 0xc3, 0x99, 0x7b, 0xb3, 0xb1, 0x9a, 0xe9, 0x73, 0xb2, 0x4d, 0x08,
+ 0x2a, 0xa4, 0x67, 0x42, 0xef, 0x7c, 0xf5, 0x67, 0x3e, 0xa4, 0x78, 0xe1, 0x04, 0x93, 0x5e, 0x1b,
+ 0xf9, 0xae, 0xe1, 0x5a, 0x7f, 0x42, 0x38, 0xb7, 0x93, 0xfb, 0x27, 0xff, 0x1c, 0x7e, 0xdd, 0x8a,
+ 0x71, 0x10, 0xcb, 0x65, 0xc9, 0xf2, 0x0f, 0x9e, 0x7d,
+};
+
+static key_serial_t ring_builtin;
+static key_serial_t user_key;
+static int asym_supported;
+
+static void setup(void)
+{
+ SAFE_KEYCTL(KEYCTL_JOIN_SESSION_KEYRING, 0, 0, 0, 0);
+
+ tst_modprobe("x509_key_parser", NULL);
+
+ ring_builtin = new_ring("ltpkeyctl23_builtin");
+
+ user_key = new_user_key("k", PAYLOAD, sizeof(PAYLOAD),
+ KEY_SPEC_PROCESS_KEYRING);
+
+ /* Probe if asymmetric key type is supported */
+ TEST(keyctl(KEYCTL_RESTRICT_KEYRING, ring_builtin,
+ (unsigned long)"asymmetric", (unsigned long)"bogus", 0));
+ asym_supported = (TST_RET != -1 || TST_ERR != ENODEV);
+}
+
+static void run(void)
+{
+ if (!asym_supported) {
+ tst_res(TCONF, "asymmetric key type not supported");
+ return;
+ }
+
+ TEST(keyctl(KEYCTL_RESTRICT_KEYRING, ring_builtin,
+ (unsigned long)"asymmetric",
+ (unsigned long)"builtin_trusted", 0));
+ if (TST_RET == -1 && TST_ERR == EOPNOTSUPP) {
+ tst_res(TCONF, "builtin_trusted restriction not supported");
+ return;
+ }
+
+ if (TST_RET == 0)
+ tst_res(TPASS, "KEYCTL_RESTRICT_KEYRING builtin_trusted passed");
+ else if (TST_RET == -1 && TST_ERR == EEXIST)
+ tst_res(TPASS, "KEYCTL_RESTRICT_KEYRING builtin_trusted already active");
+ else
+ tst_res(TFAIL | TTERRNO, "KEYCTL_RESTRICT_KEYRING builtin_trusted failed");
+
+ TST_EXP_FAIL(keyctl(KEYCTL_LINK, user_key, ring_builtin, 0, 0),
+ EOPNOTSUPP,
+ "KEYCTL_LINK of non-asymmetric key on builtin_trusted restricted keyring");
+
+ TST_EXP_FAIL2(add_key("asymmetric", "cert", untrusted_cert,
+ sizeof(untrusted_cert), ring_builtin), ENOKEY,
+ "add_key of untrusted cert on builtin_trusted restricted keyring");
+}
+
+static struct tst_test test = {
+ .setup = setup,
+ .test_all = run,
+ .min_kver = "4.12",
+ .needs_root = 1,
+};
--
2.51.0
--
Mailing list info: https://lists.linux.it/listinfo/ltp
next prev parent reply other threads:[~2026-09-02 11:09 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-02 11:04 [LTP] [PATCH 00/33] Improve coverage for keyctl() syscall Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 01/33] lapi/keyctl.h: Add fallback definitions for extended ops Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 02/33] keyctl10: Test KEYCTL_DESCRIBE format parsing Andrea Cervesato
2026-09-02 14:07 ` [LTP] lapi/keyctl.h: Add fallback definitions for extended ops linuxtestproject.agent
2026-09-02 11:04 ` [LTP] [PATCH 03/33] keyctl11: Test KEYCTL_DESCRIBE with exact buffer size Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 04/33] keyctl12: Test KEYCTL_DESCRIBE with too small buffer Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 05/33] keyctl13: Test KEYCTL_DESCRIBE size query Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 06/33] keyctl14: Negative tests for KEYCTL_DESCRIBE Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 07/33] keyctl15: Test KEYCTL_GET_SECURITY label retrieval Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 08/33] keyctl16: Test KEYCTL_GET_SECURITY truncated copy Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 09/33] keyctl17: Negative tests for KEYCTL_GET_SECURITY Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 10/33] keyctl18: Test basic KEYCTL_MOVE Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 11/33] keyctl19: Test KEYCTL_MOVE with same source and destination Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 12/33] keyctl20: Test KEYCTL_MOVE displacement Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 13/33] keyctl21: Negative and boundary tests for KEYCTL_MOVE Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 14/33] keyctl22: Test KEYCTL_RESTRICT_KEYRING reject-all Andrea Cervesato
2026-09-02 11:04 ` Andrea Cervesato [this message]
2026-09-02 11:04 ` [LTP] [PATCH 16/33] keyctl24: Negative tests for KEYCTL_RESTRICT_KEYRING Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 17/33] keyctl25: Test KEYCTL_DH_COMPUTE shared secret computation Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 18/33] keyctl26: Test KEYCTL_DH_COMPUTE size query Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 19/33] keyctl27: Test KEYCTL_DH_COMPUTE KDF key derivation Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 20/33] keyctl28: Negative and boundary tests for KEYCTL_DH_COMPUTE Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 21/33] lapi/keyctl.h: Add fallback definitions for public key ops Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 22/33] keyctl29: Test KEYCTL_PKEY_QUERY on public key Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 23/33] keyctl30: Test KEYCTL_PKEY_QUERY on private key Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 24/33] keyctl31: Test KEYCTL_PKEY_ENCRYPT and KEYCTL_PKEY_DECRYPT Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 25/33] keyctl32: Test KEYCTL_PKEY_SIGN and VERIFY Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 26/33] keyctl33: Negative tests for KEYCTL_PKEY_* Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 27/33] lapi/keyctl.h: Add capability fallback defines Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 28/33] keyctl34: Test KEYCTL_CAPABILITIES flag retrieval Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 29/33] keyctl35: Test KEYCTL_CAPABILITIES size query Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 30/33] keyctl36: Test KEYCTL_CAPABILITIES buffer sizing Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 31/33] keyctl37: Negative tests for KEYCTL_CAPABILITIES Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 32/33] keyctl38: Test KEYCTL_WATCH_KEY add and remove Andrea Cervesato
2026-09-02 11:04 ` [LTP] [PATCH 33/33] keyctl39: Negative tests for KEYCTL_WATCH_KEY Andrea Cervesato
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