diff --git a/README.md b/README.md
index 1396c8e..e845df8 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,7 @@ similar dependencies):
* lksctp-tools-devel _(to build the SCTP test programs)_
* attr _(tools used by the overlayfs tests)_
* libbpf-devel _(tools used by the bpf tests)_
+* keyutils-libs-devel _(tools used by the keys tests)_
On a modern Fedora system you can install these dependencies with the
following command:
@@ -67,7 +68,8 @@ following command:
iptables \
lksctp-tools-devel \
attr \
- libbpf-devel
+ libbpf-devel \
+ keyutils-libs-devel
The testsuite requires a pre-existing base policy configuration of SELinux,
using either the old example policy or the reference policy as the baseline.
diff --git a/defconfig b/defconfig
index cb57f22..b13075d 100644
--- a/defconfig
+++ b/defconfig
@@ -67,3 +67,10 @@ CONFIG_ANDROID_BINDERFS=y
# They are not required for SELinux operation itself.
CONFIG_BPF=y
CONFIG_BPF_SYSCALL=y
+
+# Keys implementation.
+# These are enabled to test the key controls in tests/keys; they are
+# not required for SELinux operation itself.
+CONFIG_KEYS=y
+CONFIG_KEYS_COMPAT=y
+CONFIG_KEY_DH_OPERATIONS=y
diff --git a/policy/Makefile b/policy/Makefile
index a5942b3..5c2c438 100644
--- a/policy/Makefile
+++ b/policy/Makefile
@@ -82,6 +82,10 @@ ifeq ($(shell grep -q bpf $(POLDEV)/include/support/all_perms.spt && echo true),
TARGETS += test_bpf.te test_fdreceive_bpf.te test_binder_bpf.te
endif
+ifeq ($(shell grep -q all_key_perms $(POLDEV)/include/support/all_perms.spt && echo true),true)
+TARGETS += test_keys.te
+endif
+
ifeq (x$(DISTRO),$(filter x$(DISTRO),xRHEL4 xRHEL5 xRHEL6))
TARGETS:=$(filter-out test_overlayfs.te test_mqueue.te test_ibpkey.te, $(TARGETS))
endif
diff --git a/policy/test_keys.te b/policy/test_keys.te
new file mode 100644
index 0000000..c184409
--- /dev/null
+++ b/policy/test_keys.te
@@ -0,0 +1,269 @@
+#
+################# KEY selinux-testsuite policy module ######################
+#
+attribute keydomain;
+
+#
+############################## Define Macro ################################
+#
+# Do not use domain_type() macro as it has allow 'key { link search }'
+# in base module so 'allow domain self:key ~{ link search };' will not work
+# here. Add these instead to allow key perms to be controlled by this module.
+#
+gen_require(`
+ type setrans_var_run_t, syslogd_t;
+')
+
+define(`key_domain_type',`
+ allow $1 proc_t:dir { search };
+ allow $1 proc_t:lnk_file { read };
+ allow $1 self:dir { search };
+ allow $1 self:file { open read write };
+ dontaudit init_t syslogd_t:fd use;
+ dontaudit $1 security_t:filesystem getattr;
+ dontaudit $1 self:file getattr;
+ dontaudit $1 setrans_var_run_t:dir search;
+ dontaudit unconfined_t $1:process { noatsecure rlimitinh siginh };
+')
+
+#
+####################### Main key class tests #####################
+#
+type test_key_t;
+key_domain_type(test_key_t)
+unconfined_runs_test(test_key_t)
+typeattribute test_key_t testdomain;
+typeattribute test_key_t keydomain;
+
+allow test_key_t self:process { setkeycreate };
+allow test_key_t self:key { create write search read view link setattr };
+
+# Set new context on a keyring:
+type test_newcon_key_t;
+key_domain_type(test_newcon_key_t)
+unconfined_runs_test(test_newcon_key_t)
+typeattribute test_newcon_key_t testdomain;
+typeattribute test_newcon_key_t keydomain;
+
+allow test_key_t test_newcon_key_t:key { create write search view };
+
+################# Deny process { setkeycreate } #######################
+type test_no_setkeycreate_t;
+key_domain_type(test_no_setkeycreate_t)
+unconfined_runs_test(test_no_setkeycreate_t)
+typeattribute test_no_setkeycreate_t testdomain;
+typeattribute test_no_setkeycreate_t keydomain;
+
+###################### Deny key { create } ###########################
+type test_key_no_create_t;
+key_domain_type(test_key_no_create_t)
+unconfined_runs_test(test_key_no_create_t)
+typeattribute test_key_no_create_t testdomain;
+typeattribute test_key_no_create_t keydomain;
+
+allow test_key_no_create_t self:process { setkeycreate };
+allow test_key_no_create_t self:key { write search read view link setattr };
+
+###################### Deny key { write } ###########################
+type test_key_no_write_t;
+key_domain_type(test_key_no_write_t)
+unconfined_runs_test(test_key_no_write_t)
+typeattribute test_key_no_write_t testdomain;
+typeattribute test_key_no_write_t keydomain;
+
+allow test_key_no_write_t self:process { setkeycreate };
+allow test_key_no_write_t self:key { create search read view link setattr };
+
+###################### Deny key { search } ###########################
+type test_key_no_search_t;
+key_domain_type(test_key_no_search_t)
+unconfined_runs_test(test_key_no_search_t)
+typeattribute test_key_no_search_t testdomain;
+typeattribute test_key_no_search_t keydomain;
+
+allow test_key_no_search_t self:process { setkeycreate };
+allow test_key_no_search_t self:key { create write read view link setattr };
+dontaudit test_key_no_search_t test_key_t:key search;
+
+###################### Deny key { view } ###########################
+type test_key_no_view_t;
+key_domain_type(test_key_no_view_t)
+unconfined_runs_test(test_key_no_view_t)
+typeattribute test_key_no_view_t testdomain;
+typeattribute test_key_no_view_t keydomain;
+
+allow test_key_no_view_t self:process { setkeycreate };
+allow test_key_no_view_t self:key { create write search read link setattr };
+dontaudit test_key_no_view_t test_key_t:key search;
+
+###################### Deny key { read } ###########################
+type test_key_no_read_t;
+key_domain_type(test_key_no_read_t)
+unconfined_runs_test(test_key_no_read_t)
+typeattribute test_key_no_read_t testdomain;
+typeattribute test_key_no_read_t keydomain;
+
+allow test_key_no_read_t self:process { setkeycreate };
+allow test_key_no_read_t self:key { create write search view link setattr };
+
+###################### Deny key { link } ###########################
+type test_key_no_link_t;
+key_domain_type(test_key_no_link_t)
+unconfined_runs_test(test_key_no_link_t)
+typeattribute test_key_no_link_t testdomain;
+typeattribute test_key_no_link_t keydomain;
+
+allow test_key_no_link_t self:process { setkeycreate };
+allow test_key_no_link_t self:key { create write search read view setattr };
+
+###################### Deny key { setattr } ###########################
+type test_key_no_setattr_t;
+key_domain_type(test_key_no_setattr_t)
+unconfined_runs_test(test_key_no_setattr_t)
+typeattribute test_key_no_setattr_t testdomain;
+typeattribute test_key_no_setattr_t keydomain;
+
+allow test_key_no_setattr_t self:process { setkeycreate };
+allow test_key_no_setattr_t self:key { create write search read view link };
+dontaudit test_key_no_setattr_t test_key_t:key search;
+
+#
+############## keyring_service / request_keys process tests ###############
+#
+# Check between a process and a keyring created by another process in a
+# different security context.
+#
+type test_keyring_service_t;
+key_domain_type(test_keyring_service_t)
+unconfined_runs_test(test_keyring_service_t)
+typeattribute test_keyring_service_t testdomain;
+typeattribute test_keyring_service_t keydomain;
+
+allow test_keyring_service_t self:process { setkeycreate };
+allow test_keyring_service_t self:key { create write search read view link setattr };
+allow test_keyring_service_t init_t:key { write search };
+allow test_keyring_service_t test_key_t:key { create write search };
+
+allow test_keyring_service_t test_file_t:file execute_no_trans;
+allow test_keyring_service_t self : process { dyntransition };
+allow test_keyring_service_t test_request_keys_t:process dyntransition;
+allow test_keyring_service_t test_request_keys_no_search_t:process dyntransition;
+allow test_keyring_service_t test_request_keys_no_read_t:process dyntransition;
+allow test_keyring_service_t test_request_keys_no_write_t:process dyntransition;
+allow test_keyring_service_t test_request_keys_no_view_t:process dyntransition;
+allow test_keyring_service_t test_request_keys_no_setattr_t:process dyntransition;
+allow test_keyring_service_t test_request_keys_no_link_t:process dyntransition;
+
+################################# request_keys ############################
+type test_request_keys_t;
+key_domain_type(test_request_keys_t)
+unconfined_runs_test(test_request_keys_t)
+typeattribute test_request_keys_t testdomain;
+typeattribute test_request_keys_t keydomain;
+
+allow test_request_keys_t self:key { create write search read view link setattr };
+allow test_request_keys_t init_t:key { search };
+allow test_request_keys_t test_keyring_service_t:key { search read write view link setattr };
+allow test_request_keys_t test_key_t:key { search view link };
+
+################### request_keys deny { search } ############################
+type test_request_keys_no_search_t;
+key_domain_type(test_request_keys_no_search_t)
+unconfined_runs_test(test_request_keys_no_search_t)
+typeattribute test_request_keys_no_search_t testdomain;
+typeattribute test_request_keys_no_search_t keydomain;
+
+allow test_request_keys_no_search_t self:key { create write search read view link setattr };
+allow test_request_keys_no_search_t init_t:key { search };
+allow test_request_keys_no_search_t test_keyring_service_t:key { write view setattr };
+allow test_request_keys_no_search_t test_key_t:key search;
+
+################### request_keys deny { read } ############################
+type test_request_keys_no_read_t;
+key_domain_type(test_request_keys_no_read_t)
+unconfined_runs_test(test_request_keys_no_read_t)
+typeattribute test_request_keys_no_read_t testdomain;
+typeattribute test_request_keys_no_read_t keydomain;
+
+allow test_request_keys_no_read_t self:key { create write search read view link setattr };
+allow test_request_keys_no_read_t init_t:key { search };
+allow test_request_keys_no_read_t test_keyring_service_t:key { write search view setattr link }; # link for 5.3
+allow test_request_keys_no_read_t test_key_t:key search;
+
+################### request_keys deny { write } ############################
+type test_request_keys_no_write_t;
+key_domain_type(test_request_keys_no_write_t)
+unconfined_runs_test(test_request_keys_no_write_t)
+typeattribute test_request_keys_no_write_t testdomain;
+typeattribute test_request_keys_no_write_t keydomain;
+
+allow test_request_keys_no_write_t self:key { create write search read view link setattr };
+allow test_request_keys_no_write_t init_t:key { search };
+allow test_request_keys_no_write_t test_keyring_service_t:key { search view setattr };
+allow test_request_keys_no_write_t test_key_t:key search;
+
+################### request_keys deny { view } ############################
+type test_request_keys_no_view_t;
+key_domain_type(test_request_keys_no_view_t)
+unconfined_runs_test(test_request_keys_no_view_t)
+typeattribute test_request_keys_no_view_t testdomain;
+typeattribute test_request_keys_no_view_t keydomain;
+
+allow test_request_keys_no_view_t self:key { create write search read view link setattr };
+allow test_request_keys_no_view_t init_t:key { search };
+allow test_request_keys_no_view_t test_keyring_service_t:key { search write setattr link }; # link for 5.3
+allow test_request_keys_no_view_t test_key_t:key search;
+
+################### request_keys deny { setattr } ############################
+type test_request_keys_no_setattr_t;
+key_domain_type(test_request_keys_no_setattr_t)
+unconfined_runs_test(test_request_keys_no_setattr_t)
+typeattribute test_request_keys_no_setattr_t testdomain;
+typeattribute test_request_keys_no_setattr_t keydomain;
+
+allow test_request_keys_no_setattr_t self:key { create write search read view link setattr };
+allow test_request_keys_no_setattr_t init_t:key { search };
+allow test_request_keys_no_setattr_t test_keyring_service_t:key { search read write link view };
+allow test_request_keys_no_setattr_t test_key_t:key search;
+
+################### request_keys deny { link } ############################
+type test_request_keys_no_link_t;
+key_domain_type(test_request_keys_no_link_t)
+unconfined_runs_test(test_request_keys_no_link_t)
+typeattribute test_request_keys_no_link_t testdomain;
+typeattribute test_request_keys_no_link_t keydomain;
+
+allow test_request_keys_no_link_t self:key { create write search read view link setattr };
+allow test_request_keys_no_link_t init_t:key { search };
+allow test_request_keys_no_link_t test_keyring_service_t:key { read write search view setattr };
+allow test_request_keys_no_link_t test_key_t:key search;
+
+#
+########################## Test Watch Queue ##############################
+#
+type test_watch_t;
+key_domain_type(test_watch_t)
+unconfined_runs_test(test_watch_t)
+typeattribute test_watch_t testdomain;
+typeattribute test_watch_t keydomain;
+
+allow test_watch_t device_t:chr_file { ioctl open read write };
+allow test_watch_t self:key { create write search read view link setattr };
+allow_map(test_watch_t, device_t, chr_file)
+
+################# Deny Watch Queue key { view } ##########################
+type test_watch_no_view_t;
+key_domain_type(test_watch_no_view_t)
+unconfined_runs_test(test_watch_no_view_t)
+typeattribute test_watch_no_view_t testdomain;
+typeattribute test_watch_no_view_t keydomain;
+
+allow test_watch_no_view_t device_t:chr_file { ioctl open read write };
+allow test_watch_no_view_t self:key { create write search read link setattr };
+allow_map(test_watch_no_view_t, device_t, chr_file)
+
+#
+########### Allow these domains to be entered from sysadm domain ############
+#
+miscfiles_domain_entry_test_files(keydomain)
+userdom_sysadm_entry_spec_domtrans_to(keydomain)
diff --git a/setenforce b/setenforce
new file mode 100644
index 0000000..e69de29
diff --git a/tests/Makefile b/tests/Makefile
index e5bdfff..42f7f40 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -48,6 +48,10 @@ export CFLAGS += -DHAVE_BPF
endif
endif
+ifeq ($(shell grep -q all_key_perms $(POLDEV)/include/support/all_perms.spt && echo true),true)
+SUBDIRS += keys
+endif
+
ifeq ($(shell grep "^SELINUX_INFINIBAND_ENDPORT_TEST=" infiniband_endport/ibendport_test.conf | cut -d'=' -f 2),1)
SUBDIRS += infiniband_endport
endif
diff --git a/tests/keys/.gitignore b/tests/keys/.gitignore
new file mode 100644
index 0000000..670a61e
--- /dev/null
+++ b/tests/keys/.gitignore
@@ -0,0 +1,4 @@
+keyctl
+keyctl_relabel
+keyring_service
+request_key
diff --git a/tests/keys/Makefile b/tests/keys/Makefile
new file mode 100644
index 0000000..d3793db
--- /dev/null
+++ b/tests/keys/Makefile
@@ -0,0 +1,7 @@
+TARGETS = keyctl keyctl_relabel keyring_service request_keys
+LDLIBS += -lselinux -lkeyutils
+
+all: $(TARGETS)
+
+clean:
+ rm -f $(TARGETS)
diff --git a/tests/keys/keyctl.c b/tests/keys/keyctl.c
new file mode 100644
index 0000000..d482a8f
--- /dev/null
+++ b/tests/keys/keyctl.c
@@ -0,0 +1,235 @@
+#include "keys_common.h"
+
+static void usage(char *progname)
+{
+ fprintf(stderr,
+ "usage: %s [-v]\n"
+ "Where:\n\t"
+ "-v Print information.\n", progname);
+ exit(-1);
+}
+
+int main(int argc, char *argv[])
+{
+ int opt, result;
+ char *context, *keycreate_con;
+ char r_con[256];
+ bool verbose = false;
+ key_serial_t retrieved, search, link, compute, newring,
+ private, prime, base, test_key;
+ struct keyctl_dh_params params;
+
+ while ((opt = getopt(argc, argv, "v")) != -1) {
+ switch (opt) {
+ case 'v':
+ verbose = true;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ result = getcon(&context);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain process context\n");
+ exit(1);
+ }
+ if (verbose)
+ printf("Process context: %s\n", context);
+
+ result = getkeycreatecon(&keycreate_con);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain keycreate context\n");
+ exit(2);
+ }
+ if (verbose)
+ printf("Current keycreate context: %s\n", keycreate_con);
+ free(keycreate_con);
+
+ /* Set context requires process { setkeycreate } and key { create } */
+ result = setkeycreatecon(context);
+ if (result < 0) {
+ fprintf(stderr, "Failed setkeycreatecon(): %s\n",
+ strerror(errno));
+ exit(3);
+ }
+ if (verbose)
+ printf("Set keycreate context: %s\n", context);
+ free(context);
+
+ result = getkeycreatecon(&keycreate_con);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain keycreate context\n");
+ exit(4);
+ }
+ if (verbose)
+ printf("New keycreate context: %s\n", keycreate_con);
+ free(keycreate_con);
+
+ /*
+ * Add three keys as these will be required by the
+ * keyctl(KEYCTL_DH_COMPUTE, ..) function.
+ * These require key { create write } permissions.
+ */
+ private = add_key("user", "private", payload, strlen(payload),
+ KEY_SPEC_PROCESS_KEYRING);
+ if (private < 0) {
+ fprintf(stderr, "Failed add_key(private): %s\n",
+ strerror(errno));
+ exit(5);
+ }
+
+ prime = add_key("user", "prime", payload, strlen(payload),
+ KEY_SPEC_PROCESS_KEYRING);
+ if (prime < 0) {
+ fprintf(stderr, "Failed add_key(prime): %s\n",
+ strerror(errno));
+ exit(6);
+ }
+
+ base = add_key("user", "base", payload, strlen(payload),
+ KEY_SPEC_PROCESS_KEYRING);
+ if (base < 0) {
+ fprintf(stderr, "Failed add_key(base): %s\n",
+ strerror(errno));
+ exit(7);
+ }
+
+ if (verbose) {
+ printf("Private key ID: 0x%x\n", private);
+ printf("Prime key ID: 0x%x\n", prime);
+ printf("Base key ID: 0x%x\n", base);
+ }
+
+ /* Requires key { search }. From kernel 5.3 requires { link } */
+ retrieved = request_key("user", "private", NULL,
+ KEY_SPEC_PROCESS_KEYRING);
+ if (retrieved < 0) {
+ fprintf(stderr, "Failed to request 'private' key: %s\n",
+ strerror(errno));
+ exit(8);
+ }
+
+ /* Requires key { search } */
+ search = keyctl(KEYCTL_SEARCH, KEY_SPEC_PROCESS_KEYRING, "user",
+ "base", 0);
+ if (search < 0) {
+ fprintf(stderr, "Failed to find 'base' key: %s\n",
+ strerror(errno));
+ exit(9);
+ }
+
+ /* Requires key { view } */
+ result = keyctl(KEYCTL_GET_SECURITY, search, r_con, sizeof(r_con));
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain key context: %s\n",
+ strerror(errno));
+ exit(10);
+ }
+
+ if (verbose) {
+ printf("Requested 'private' key ID: 0x%x\n", retrieved);
+ printf("Searched 'base' key ID: 0x%x\n", search);
+ printf("Searched 'base' key context:\n\t%s\n", r_con);
+ }
+
+ /* Compute DH key, only obtain the length for test, not the key. */
+ params.priv = private;
+ params.prime = prime;
+ params.base = base;
+
+ /* Requires key { create read write } */
+ compute = keyctl(KEYCTL_DH_COMPUTE, ¶ms, NULL, 0, 0);
+ if (compute < 0) {
+ fprintf(stderr, "Failed KEYCTL_DH_COMPUTE: %s\n",
+ strerror(errno));
+ exit(11);
+ }
+ if (verbose)
+ printf("KEYCTL_DH_COMPUTE key ID size: %d\n", compute);
+
+ /* To test key { link }, need to generate a new keyring ID first */
+ newring = add_key("keyring", "my-keyring", NULL, 0,
+ KEY_SPEC_PROCESS_KEYRING);
+ if (newring < 0) {
+ fprintf(stderr, "Failed to add new keyring: %s\n",
+ strerror(errno));
+ exit(12);
+ }
+ if (verbose)
+ printf("New keyring ID: 0x%x\n", newring);
+
+ /* Requires key { write link } */
+ link = keyctl(KEYCTL_LINK, base, newring);
+ if (link < 0) {
+ fprintf(stderr, "Failed KEYCTL_LINK: %s\n",
+ strerror(errno));
+ exit(13);
+ }
+ if (verbose)
+ printf("Link key ID: 0x%x\n", newring);
+
+ /* Requires key { setattr } */
+ link = keyctl(KEYCTL_SET_TIMEOUT, base, 1);
+ if (link < 0) {
+ fprintf(stderr, "Failed KEYCTL_SET_TIMEOUT: %s\n",
+ strerror(errno));
+ exit(14);
+ }
+ if (verbose)
+ printf("Set timeout\n");
+
+ /* Requires key { search } from 5.X key { inval } */
+ test_key = keyctl(KEYCTL_INVALIDATE, private);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_INVALIDATE(private): %s\n",
+ strerror(errno));
+ exit(15);
+ }
+ if (verbose)
+ printf("Invalidated 'private' key\n");
+
+ /* Requires key { write setattr } from 5.X key { revoke } */
+ test_key = keyctl(KEYCTL_REVOKE, prime);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_REVOKE(prime): %s\n",
+ strerror(errno));
+ exit(16);
+ }
+ if (verbose)
+ printf("Revoked 'prime' key\n");
+
+ /* Requires key { write } from 5.X key { clear } */
+ test_key = keyctl(KEYCTL_CLEAR, newring);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_CLEAR(newring): %s\n",
+ strerror(errno));
+ exit(17);
+ }
+ if (verbose)
+ printf("Cleared 'newring' keyring\n");
+
+ /*
+ * To test key { join }, need to join session first.
+ * Note that this call sets up the environment that will be
+ * used by the 'request_keys' service when it calls:
+ * keyctl(KEYCTL_SESSION_TO_PARENT)
+ */
+ test_key = keyctl(KEYCTL_JOIN_SESSION_KEYRING, "user");
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_JOIN_SESSION_KEYRING,: %s\n",
+ strerror(errno));
+ exit(18);
+ }
+ /* Requires key { link } from 5.X key { join } */
+ test_key = keyctl(KEYCTL_SESSION_TO_PARENT);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_SESSION_TO_PARENT: %s\n",
+ strerror(errno));
+ exit(19);
+ }
+ if (verbose)
+ printf("Joined session to parent\n");
+
+ return 0;
+}
diff --git a/tests/keys/keyctl_relabel.c b/tests/keys/keyctl_relabel.c
new file mode 100644
index 0000000..7bab510
--- /dev/null
+++ b/tests/keys/keyctl_relabel.c
@@ -0,0 +1,93 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <keyutils.h>
+#include <selinux/selinux.h>
+
+static void usage(char *progname)
+{
+ fprintf(stderr,
+ "usage: %s [-v] newcon\n"
+ "Where:\n\t"
+ "-v Print information.\n\t"
+ "newcon New keyring context.\n", progname);
+ exit(-1);
+}
+
+int main(int argc, char *argv[])
+{
+ int opt, result;
+ char *context, *keycreate_con;
+ char r_con[256];
+ bool verbose = false;
+ key_serial_t newring;
+
+ while ((opt = getopt(argc, argv, "v")) != -1) {
+ switch (opt) {
+ case 'v':
+ verbose = true;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ if (optind >= argc)
+ usage(argv[0]);
+
+ result = getcon(&context);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain process context\n");
+ exit(1);
+ }
+ if (verbose)
+ printf("Process context: %s\n", context);
+ free(context);
+
+ result = setkeycreatecon(argv[optind]);
+ if (result < 0) {
+ fprintf(stderr, "Failed setkeycreatecon(): %s\n",
+ strerror(errno));
+ exit(2);
+ }
+
+ result = getkeycreatecon(&keycreate_con);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain keycreate context\n");
+ exit(3);
+ }
+ if (verbose)
+ printf("New keycreate context: %s\n", keycreate_con);
+ free(keycreate_con);
+
+ newring = add_key("keyring", "my-keyring", NULL, 0,
+ KEY_SPEC_PROCESS_KEYRING);
+ if (newring < 0) {
+ fprintf(stderr, "Failed to add new keyring: %s\n",
+ strerror(errno));
+ exit(4);
+ }
+
+ result = keyctl(KEYCTL_GET_SECURITY, newring, r_con, sizeof(r_con));
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain key context: %s\n",
+ strerror(errno));
+ exit(5);
+ }
+
+ if (strcmp(argv[optind], r_con)) {
+ fprintf(stderr, "Relabel error - expected: %s got: %s\n",
+ argv[optind], r_con);
+ exit(6);
+ }
+
+ if (verbose) {
+ printf("'my-keyring' key ID: 0x%x\n", newring);
+ printf("'my-keyring' context:\n\t%s\n", r_con);
+ }
+
+ return 0;
+}
diff --git a/tests/keys/keyring_service.c b/tests/keys/keyring_service.c
new file mode 100644
index 0000000..f150a6d
--- /dev/null
+++ b/tests/keys/keyring_service.c
@@ -0,0 +1,183 @@
+#include "keys_common.h"
+
+static void usage(char *progname)
+{
+ fprintf(stderr,
+ "usage: %s [-v] newdomain program\n"
+ "Where:\n\t"
+ "newdomain Type for new domain.\n\t"
+ "program Program to be exec'd.\n\t"
+ "-v Print information.\n", progname);
+ exit(-1);
+}
+
+int main(int argc, char **argv)
+{
+ int opt, pid, result, status;
+ bool verbose;
+ char *context_s, *request_keys_argv[4];
+ context_t context;
+ key_serial_t private, newring, link, test_key_1, test_key_2;
+ char newringid_str[30];
+
+ verbose = false;
+ request_keys_argv[3] = NULL;
+
+ while ((opt = getopt(argc, argv, "v")) != -1) {
+ switch (opt) {
+ case 'v':
+ verbose = true;
+ request_keys_argv[3] = strdup("-v");
+ break;
+ default:
+ usage(argv[0]);
+ }
+ }
+
+ if (argc - optind != 2)
+ usage(argv[0]);
+
+ if (verbose)
+ printf("%s process information:\n", argv[0]);
+
+ result = getcon(&context_s);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain process context\n");
+ exit(1);
+ }
+ if (verbose)
+ printf("\tProcess context:\n\t\t%s\n", context_s);
+
+ /* Set context requires process { setkeycreate } and key { create } */
+ result = setkeycreatecon(context_s);
+ if (result < 0) {
+ fprintf(stderr, "Failed setkeycreatecon(): %s\n",
+ strerror(errno));
+ exit(3);
+ }
+ if (verbose)
+ printf("\tSet keycreate context:\n\t\t%s\n", context_s);
+
+ context = context_new(context_s);
+ if (!context) {
+ fprintf(stderr, "Unable to create context structure\n");
+ exit(2);
+ }
+ free(context_s);
+
+ if (context_type_set(context, argv[optind])) {
+ fprintf(stderr, "Unable to set new type\n");
+ exit(3);
+ }
+
+ context_s = context_str(context);
+ if (!context_s) {
+ fprintf(stderr, "Unable to obtain new context string\n");
+ exit(4);
+ }
+ if (verbose)
+ printf("\t%s process context will transition to:\n\t\t%s\n",
+ argv[optind], context_s);
+
+ /*
+ * Requires key { create write } permissions.
+ * The 'newring' key ID is passed over to the 'request_keys'
+ * service for various permission checks.
+ */
+ newring = add_key("keyring", "keyring-service", NULL, 0,
+ KEY_SPEC_SESSION_KEYRING);
+ if (newring < 0) {
+ fprintf(stderr, "Failed to add new keyring: %s\n",
+ strerror(errno));
+ exit(5);
+ }
+ if (verbose)
+ printf("\tNew keyring ID: 0x%x\n", newring);
+
+ private = add_key("user", "private", payload, strlen(payload),
+ KEY_SPEC_SESSION_KEYRING);
+ if (private < 0) {
+ fprintf(stderr, "Failed add_key(private): %s\n",
+ strerror(errno));
+ exit(6);
+ }
+ if (verbose)
+ printf("\tAdded 'private' key ID: 0x%x\n", private);
+
+ test_key_1 = add_key("user", "test-key-1", payload, strlen(payload),
+ KEY_SPEC_SESSION_KEYRING);
+ if (test_key_1 < 0) {
+ fprintf(stderr, "Failed add_key(test-key-1): %s\n",
+ strerror(errno));
+ exit(6);
+ }
+ if (verbose)
+ printf("\tAdded 'test-key-1' key ID: 0x%x\n", test_key_1);
+
+ test_key_2 = add_key("user", "test-key-2", payload, strlen(payload),
+ KEY_SPEC_SESSION_KEYRING);
+ if (test_key_2 < 0) {
+ fprintf(stderr, "Failed add_key(test-key-2): %s\n",
+ strerror(errno));
+ exit(6);
+ }
+ if (verbose)
+ printf("\tAdded 'test-key-2' key ID: 0x%x\n", test_key_2);
+
+ /* Requires key { write link } */
+ link = keyctl(KEYCTL_LINK, private, newring);
+ if (link < 0) {
+ fprintf(stderr, "Failed KEYCTL_LINK: %s\n",
+ strerror(errno));
+ exit(7);
+ }
+ if (verbose)
+ printf("\tLink newring ID: 0x%x\n", newring);
+
+ pid = fork();
+ if (pid < 0) {
+ fprintf(stderr, "fork failed: %s\n", strerror(errno));
+ exit(9);
+ } else if (pid == 0) {
+ signal(SIGTRAP, SIG_IGN);
+ request_keys_argv[0] = strdup(argv[optind + 1]);
+ request_keys_argv[1] = strdup(context_s);
+ sprintf(newringid_str, "%d", newring);
+ request_keys_argv[2] = strdup(newringid_str);
+
+ if (verbose)
+ printf("\tExec parameters:\n\t\t%s\n\t\t%s\n\t\t0x%x\n\t\t%s\n",
+ request_keys_argv[0],
+ request_keys_argv[1],
+ atoi(request_keys_argv[2]),
+ request_keys_argv[3]);
+ execv(request_keys_argv[0], request_keys_argv);
+ fprintf(stderr, "execv of: %s failed: %s\n",
+ request_keys_argv[0], strerror(errno));
+ exit(10);
+ }
+
+ pid = wait(&status);
+ if (pid < 0) {
+ fprintf(stderr, "wait() failed: %s\n", strerror(errno));
+ exit(11);
+ }
+
+ if (WIFEXITED(status)) {
+ fprintf(stderr, "%s exited with status: %d\n", argv[optind + 1],
+ WEXITSTATUS(status));
+ exit(WEXITSTATUS(status));
+ }
+
+ if (WIFSIGNALED(status)) {
+ fprintf(stderr, "%s terminated by signal: %d\n", argv[optind + 1],
+ WTERMSIG(status));
+ fprintf(stderr,
+ "..This is consistent with a %s permission denial - check the audit log.\n",
+ argv[optind + 1]);
+ exit(12);
+ }
+
+ fprintf(stderr, "Unexpected exit status 0x%x\n", status);
+ exit(-1);
+}
diff --git a/tests/keys/keys_common.h b/tests/keys/keys_common.h
new file mode 100644
index 0000000..df15280
--- /dev/null
+++ b/tests/keys/keys_common.h
@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <sys/wait.h>
+#include <keyutils.h>
+#include <selinux/selinux.h>
+#include <selinux/context.h>
+
+/* This is used as the payload for each add_key() */
+static const char payload[] =
+ " -----BEGIN PUBLIC KEY-----\nMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDN4FHsPjlJf03r9KfNt1Ma9/D6\nQDEiR/cfhZrNUPgHRresult+E4dj52VJSonPFJ6HaLlUi5pZq2t1LqPNrMfFKCNn12m+\nWw4aduBJM7u1RUPSNxrlfDAJZkdtNALOO/ds3U93hZrxOYNetzbnjILDu5JT1nbI\n4aC60SkdlCw1TxmvXwIDAQAB\n-----END PUBLIC KEY-----\n";
diff --git a/tests/keys/request_keys.c b/tests/keys/request_keys.c
new file mode 100644
index 0000000..15ec136
--- /dev/null
+++ b/tests/keys/request_keys.c
@@ -0,0 +1,227 @@
+#include "keys_common.h"
+
+int main(int argc, char **argv)
+{
+ int nfi, result;
+ char r_con[512], type[20], desc[30], *context;
+ bool verbose = false;
+ key_serial_t private, prime, base, compute, link, test_key;
+ key_serial_t test_key_1, test_key_2;
+ struct keyctl_dh_params params;
+
+ /*
+ * There are three parameters passed:
+ * 1 - The security context for setcon(3)
+ * 2 - A string containing the 'newring' key ID required
+ * for various permission checks.
+ * 3 - Verbose mode
+ */
+ if (argv[3] != NULL)
+ verbose = true;
+
+ if (verbose)
+ printf("%s process information:\n", argv[0]);
+
+ /*
+ * Use setcon() as policy will not allow multiple type_transition
+ * statements using the same target with different process types.
+ */
+ result = setcon(argv[1]);
+ if (result < 0) {
+ fprintf(stderr, "setcon() failed to set process context: %s\n",
+ argv[1]);
+ exit(1);
+ }
+
+ result = getcon(&context);
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain process context\n");
+ exit(2);
+ }
+ if (verbose)
+ printf("\tProcess context:\n\t\t%s\n", context);
+
+ free(context);
+
+ /* Requires key { search write }. From kernel 5.3 requires { link } */
+ private = request_key("user", "private", NULL, atoi(argv[2]));
+ if (private < 0) {
+ fprintf(stderr, "Failed to request 'private' key: %s\n",
+ strerror(errno));
+ exit(3);
+ }
+ if (verbose)
+ printf("\tRequested 'private' key ID: 0x%x\n", private);
+
+ /* Requires key { search }. From kernel 5.3 requires { link } */
+ test_key_1 = request_key("user", "test-key-1", NULL, atoi(argv[2]));
+ if (test_key_1 < 0) {
+ fprintf(stderr, "Failed to request 'test-key-1' key: %s\n",
+ strerror(errno));
+ exit(3);
+ }
+ if (verbose)
+ printf("\tRequested 'test-key-1' key ID: 0x%x\n", private);
+
+ test_key_2 = request_key("user", "test-key-2", NULL, atoi(argv[2]));
+ if (test_key_2 < 0) {
+ fprintf(stderr, "Failed to request 'test-key-2' key: %s\n",
+ strerror(errno));
+ exit(3);
+ }
+ if (verbose)
+ printf("\tRequested 'test-key-2' key ID: 0x%x\n", private);
+
+ /* Requires key { view } */
+ result = keyctl(KEYCTL_GET_SECURITY, private, r_con, sizeof(r_con));
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain key context: %s\n",
+ strerror(errno));
+ exit(4);
+ }
+ if (verbose)
+ printf("\t'private' key context:\n\t\t%s\n", r_con);
+
+ prime = add_key("user", "prime", payload, strlen(payload),
+ atoi(argv[2]));
+ if (prime < 0) {
+ fprintf(stderr, "Failed add_key(prime): %s\n",
+ strerror(errno));
+ exit(5);
+ }
+ if (verbose)
+ printf("\tAdded 'prime' key ID: 0x%x\n", prime);
+
+ result = keyctl(KEYCTL_GET_SECURITY, prime, r_con, sizeof(r_con));
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain 'prime' key context: %s\n",
+ strerror(errno));
+ exit(6);
+ }
+ if (verbose)
+ printf("\t'prime' key context:\n\t\t%s\n", r_con);
+
+ base = add_key("user", "base", payload, strlen(payload),
+ KEY_SPEC_PROCESS_KEYRING);
+ if (base < 0) {
+ fprintf(stderr, "Failed add_key(base): %s\n",
+ strerror(errno));
+ exit(7);
+ }
+ if (verbose)
+ printf("\tAdded 'base' key ID: 0x%x\n", base);
+
+ result = keyctl(KEYCTL_GET_SECURITY, prime, r_con, sizeof(r_con));
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain 'base' key context: %s\n",
+ strerror(errno));
+ exit(8);
+ }
+ if (verbose)
+ printf("\t'base' key context:\n\t\t%s\n", r_con);
+
+ /* Compute DH key, only obtain the length for test, not the key. */
+ params.priv = private;
+ params.prime = prime;
+ params.base = base;
+
+ /* Requires key { create(local) read write } */
+ compute = keyctl(KEYCTL_DH_COMPUTE, ¶ms, NULL, 0, 0);
+ if (compute < 0) {
+ fprintf(stderr, "Failed KEYCTL_DH_COMPUTE: %s\n",
+ strerror(errno));
+ exit(9);
+ }
+ if (verbose)
+ printf("\tKEYCTL_DH_COMPUTE key ID size: %d\n", compute);
+
+ /* Requires key { write link } */
+ link = keyctl(KEYCTL_LINK, private, atoi(argv[2])); /* newring */
+ if (link < 0) {
+ fprintf(stderr, "Failed KEYCTL_LINK: %s\n",
+ strerror(errno));
+ exit(10);
+ }
+ if (verbose)
+ printf("\tLink key ID: 0x%x\n", atoi(argv[2]));
+
+ test_key = keyctl(KEYCTL_DESCRIBE, atoi(argv[2]), r_con, sizeof(r_con));
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_DESCRIBE: %s\n",
+ strerror(errno));
+ exit(11);
+ }
+ /* Requires key { setattr } */
+ test_key = keyctl(KEYCTL_SET_TIMEOUT, atoi(argv[2]), 2);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_SET_TIMEOUT: %s\n",
+ strerror(errno));
+ exit(12);
+ }
+ if (verbose) {
+ nfi = sscanf(r_con, "%[^;];%d;%d;%x;%s",
+ type, &nfi, &nfi, &nfi, desc);
+ printf("\tSet timeout on Key Type: '%s' Description: '%s'\n",
+ type, desc);
+ }
+
+ /* Requires key { search } from 5.X key { inval } */
+ test_key = keyctl(KEYCTL_INVALIDATE, test_key_1);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_INVALIDATE(test-key-1): %s\n",
+ strerror(errno));
+ exit(13);
+ }
+ if (verbose)
+ printf("\tInvalidated 'test-key-1' key\n");
+
+ /* Requires key { write setattr } from 5.X key { revoke } */
+ test_key = keyctl(KEYCTL_REVOKE, test_key_2);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_REVOKE(test-key-2): %s\n",
+ strerror(errno));
+ exit(14);
+ }
+ if (verbose)
+ printf("\tRevoked 'test-key-2' key\n");
+
+ /* Requires key { write } from 5.X key { clear } */
+ test_key = keyctl(KEYCTL_CLEAR, atoi(argv[2]));
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_CLEAR(newring): %s\n",
+ strerror(errno));
+ exit(15);
+ }
+ if (verbose)
+ printf("\tCleared 'newring' keyring\n");
+
+ /*
+ * The ./keyctl program executed:
+ * keyctl(KEYCTL_JOIN_SESSION_KEYRING, "user")
+ * for testing joining a keyring. The session security context will
+ * therefore be from ./keyctl as described in keyctl(1):
+ * Each process subscribes to a session keyring that is
+ * inherited across (v)fork, exec and clone.
+ *
+ * Requires key { link } from 5.X key { join }
+ */
+ test_key = keyctl(KEYCTL_SESSION_TO_PARENT);
+ if (test_key < 0) {
+ fprintf(stderr, "Failed KEYCTL_SESSION_TO_PARENT: %s\n",
+ strerror(errno));
+ exit(16);
+ }
+
+ result = keyctl(KEYCTL_GET_SECURITY, KEY_SPEC_SESSION_KEYRING,
+ r_con, sizeof(r_con));
+ if (result < 0) {
+ fprintf(stderr, "Failed to obtain 'KEY_SPEC_SESSION_KEYRING' context: %s\n",
+ strerror(errno));
+ exit(17);
+ }
+ if (verbose)
+ printf("\tJoined session to parent. The parent keyring context is:\n\t\t%s\n",
+ r_con);
+
+ exit(0);
+}
diff --git a/tests/keys/test b/tests/keys/test
new file mode 100755
index 0000000..e469b9b
--- /dev/null
+++ b/tests/keys/test
@@ -0,0 +1,126 @@
+#!/usr/bin/perl
+use Test::More;
+
+BEGIN {
+ $basedir = $0;
+ $basedir =~ s|(.*)/[^/]*|$1|;
+
+ $test_count = 17;
+
+ # allow info to be shown during tests
+ $v = $ARGV[0];
+ if ($v) {
+ if ( $v ne "-v" ) {
+ plan skip_all => "Invalid option (use -v)";
+ }
+ }
+ else {
+ $v = " ";
+ }
+
+ # From kernel 5.3 request_key() requires additional check of key { link }
+ $kvercur = `uname -r`;
+ chomp($kvercur);
+ $kverminstream = "5.3";
+ $test_link_53 = 0;
+
+ $result = `$basedir/../kvercmp $kvercur $kverminstream`;
+ if ( $result >= 0 ) {
+ $test_link_53 = 1;
+ }
+
+ plan tests => $test_count;
+}
+
+############ Test keyctl #############
+print "Test key class permissions\n";
+$result = system "runcon -t test_key_t $basedir/keyctl $v";
+ok( $result eq 0 );
+
+# Deny process { setkeycreate }
+$result = system "runcon -t test_no_setkeycreate_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 3 );
+
+# Deny key { create }
+$result = system "runcon -t test_key_no_create_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 3 );
+
+# Deny key { write }
+$result = system "runcon -t test_key_no_write_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 5 );
+
+# Deny key { search }
+$result = system "runcon -t test_key_no_search_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 8 );
+
+# Deny key { view }
+$result = system "runcon -t test_key_no_view_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 10 );
+
+# Deny key { read }
+$result = system "runcon -t test_key_no_read_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 11 );
+
+# Deny key { link }
+$result = system "runcon -t test_key_no_link_t $basedir/keyctl $v 2>&1";
+if ($test_link_53) {
+ ok( $result >> 8 eq 8 );
+}
+else {
+ ok( $result >> 8 eq 13 );
+}
+
+# Deny key { setattr }
+$result = system "runcon -t test_key_no_setattr_t $basedir/keyctl $v 2>&1";
+ok( $result >> 8 eq 14 );
+
+########### Change keyring context ##############
+print "Change keyring context\n";
+$result = system
+"runcon -t test_key_t $basedir/keyctl_relabel $v system_u:system_r:test_newcon_key_t:s0";
+ok( $result eq 0 );
+
+##### Test permission checks between a keyring created by a process and ############
+##### a service in a different security context.
+print "Test permission checks between a keyring created by another process\n";
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_t $basedir/request_keys 2>&1"
+);
+ok( $result eq 0 );
+
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_no_search_t $basedir/request_keys 2>&1"
+);
+ok( $result >> 8 eq 3 );
+
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_no_read_t $basedir/request_keys 2>&1"
+);
+ok( $result >> 8 eq 9 );
+
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_no_write_t $basedir/request_keys 2>&1"
+);
+ok( $result >> 8 eq 3 );
+
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_no_view_t $basedir/request_keys 2>&1"
+);
+ok( $result >> 8 eq 4 );
+
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_no_setattr_t $basedir/request_keys 2>&1"
+);
+ok( $result >> 8 eq 12 );
+
+$result = system(
+"runcon -t test_keyring_service_t $basedir/keyring_service $v test_request_keys_no_link_t $basedir/request_keys 2>&1"
+);
+if ($test_link_53) {
+ ok( $result >> 8 eq 3 );
+}
+else {
+ ok( $result >> 8 eq 10 );
+}
+
+exit;
