endif
endif
+lxc_test_capabilities_allow_SOURCES = capabilities_allow.c \
+ ../lxc/af_unix.c ../lxc/af_unix.h \
+ ../lxc/caps.c ../lxc/caps.h \
+ ../lxc/cgroups/cgfsng.c \
+ ../lxc/cgroups/cgroup.c ../lxc/cgroups/cgroup.h \
+ ../lxc/cgroups/cgroup2_devices.c ../lxc/cgroups/cgroup2_devices.h \
+ ../lxc/cgroups/cgroup_utils.c ../lxc/cgroups/cgroup_utils.h \
+ ../lxc/commands.c ../lxc/commands.h \
+ ../lxc/commands_utils.c ../lxc/commands_utils.h \
+ ../lxc/conf.c ../lxc/conf.h \
+ ../lxc/confile.c ../lxc/confile.h \
+ ../lxc/confile_utils.c ../lxc/confile_utils.h \
+ ../lxc/error.c ../lxc/error.h \
+ ../lxc/file_utils.c ../lxc/file_utils.h \
+ ../include/netns_ifaddrs.c ../include/netns_ifaddrs.h \
+ ../lxc/initutils.c ../lxc/initutils.h \
+ ../lxc/log.c ../lxc/log.h \
+ ../lxc/lxclock.c ../lxc/lxclock.h \
+ ../lxc/mainloop.c ../lxc/mainloop.h \
+ ../lxc/monitor.c ../lxc/monitor.h \
+ ../lxc/mount_utils.c ../lxc/mount_utils.h \
+ ../lxc/namespace.c ../lxc/namespace.h \
+ ../lxc/network.c ../lxc/network.h \
+ ../lxc/nl.c ../lxc/nl.h \
+ ../lxc/parse.c ../lxc/parse.h \
+ ../lxc/process_utils.c ../lxc/process_utils.h \
+ ../lxc/ringbuf.c ../lxc/ringbuf.h \
+ ../lxc/start.c ../lxc/start.h \
+ ../lxc/state.c ../lxc/state.h \
+ ../lxc/storage/btrfs.c ../lxc/storage/btrfs.h \
+ ../lxc/storage/dir.c ../lxc/storage/dir.h \
+ ../lxc/storage/loop.c ../lxc/storage/loop.h \
+ ../lxc/storage/lvm.c ../lxc/storage/lvm.h \
+ ../lxc/storage/nbd.c ../lxc/storage/nbd.h \
+ ../lxc/storage/overlay.c ../lxc/storage/overlay.h \
+ ../lxc/storage/rbd.c ../lxc/storage/rbd.h \
+ ../lxc/storage/rsync.c ../lxc/storage/rsync.h \
+ ../lxc/storage/storage.c ../lxc/storage/storage.h \
+ ../lxc/storage/storage_utils.c ../lxc/storage/storage_utils.h \
+ ../lxc/storage/zfs.c ../lxc/storage/zfs.h \
+ ../lxc/sync.c ../lxc/sync.h \
+ ../lxc/string_utils.c ../lxc/string_utils.h \
+ ../lxc/terminal.c ../lxc/terminal.h \
+ ../lxc/utils.c ../lxc/utils.h \
+ ../lxc/uuid.c ../lxc/uuid.h \
+ $(LSM_SOURCES)
+if ENABLE_SECCOMP
+lxc_test_capabilities_allow_SOURCES += ../lxc/seccomp.c ../lxc/lxcseccomp.h
+endif
+
+if !HAVE_STRCHRNUL
+lxc_test_capabilities_allow_SOURCES += ../include/strchrnul.c ../include/strchrnul.h
+endif
+
+if !HAVE_STRLCPY
+lxc_test_capabilities_allow_SOURCES += ../include/strlcpy.c ../include/strlcpy.h
+endif
+
+if !HAVE_STRLCAT
+lxc_test_capabilities_allow_SOURCES += ../include/strlcat.c ../include/strlcat.h
+endif
+
+if !HAVE_OPENPTY
+lxc_test_capabilities_allow_SOURCES += ../include/openpty.c ../include/openpty.h
+endif
+
+if IS_BIONIC
+lxc_test_capabilities_allow_SOURCES += ../include/fexecve.c ../include/fexecve.h \
+ ../include/lxcmntent.c ../include/lxcmntent.h
+endif
+
+if !HAVE_GETGRGID_R
+lxc_test_capabilities_allow_SOURCES += ../include/getgrgid_r.c ../include/getgrgid_r.h
+endif
+
+if !HAVE_PRLIMIT
+if HAVE_PRLIMIT64
+lxc_test_capabilities_allow_SOURCES += ../include/prlimit.c ../include/prlimit.h
+endif
+endif
+
AM_CFLAGS += -DLXCROOTFSMOUNT=\"$(LXCROOTFSMOUNT)\" \
-DLXCPATH=\"$(LXCPATH)\" \
-DLXC_GLOBAL_CONF=\"$(LXC_GLOBAL_CONF)\" \
lxc-test-arch-parse \
lxc-test-attach \
lxc-test-basic \
+ lxc-test-capabilities-allow \
lxc-test-cgpath \
lxc-test-clonetest \
lxc-test-concurrent \
EXTRA_DIST = arch_parse.c \
basic.c \
+ capabilities_allow.c \
cgpath.c \
clonetest.c \
concurrent.c \
--- /dev/null
+/* liblxcapi
+ *
+ * Copyright © 2021 Christian Brauner <christian.brauner@ubuntu.com>.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "lxccontainer.h"
+#include "attach_options.h"
+
+#include "caps.h"
+#include "lxctest.h"
+#include "utils.h"
+
+#if HAVE_LIBCAP
+static int capabilities_allow(void *payload)
+{
+ int last_cap;
+
+ last_cap = lxc_caps_last_cap();
+ for (int cap = 0; cap <= last_cap; cap++) {
+ bool bret;
+
+ if (cap == CAP_MKNOD)
+ bret = cap_get_bound(cap) == CAP_SET;
+ else
+ bret = cap_get_bound(cap) != CAP_SET;
+ if (!bret) {
+ lxc_error("Capability %d unexpectedly raised or lowered\n", cap);
+ return EXIT_FAILURE;
+ }
+ }
+
+ return EXIT_SUCCESS;
+}
+
+int main(int argc, char *argv[])
+{
+ __do_close int fd_log = -EBADF;
+ int fret = EXIT_FAILURE;
+ lxc_attach_options_t attach_options = LXC_ATTACH_OPTIONS_DEFAULT;
+ int ret;
+ pid_t pid;
+ struct lxc_container *c;
+ struct lxc_log log;
+ char template[sizeof(P_tmpdir"/capabilities_allow_XXXXXX")];
+
+ (void)strlcpy(template, P_tmpdir"/capabilities_allow_XXXXXX", sizeof(template));
+
+ fd_log = lxc_make_tmpfile(template, false);
+ if (fd_log < 0) {
+ lxc_error("%s", "Failed to create temporary log file for container \"capabilities-allow\"");
+ exit(fret);
+ }
+
+ log.name = "capabilities-allow";
+ log.file = template;
+ log.level = "TRACE";
+ log.prefix = "capabilities";
+ log.quiet = false;
+ log.lxcpath = NULL;
+
+ if (lxc_log_init(&log))
+ exit(fret);
+
+ c = lxc_container_new("capabilities-allow", NULL);
+ if (!c) {
+ lxc_error("%s\n", "Failed to create container \"capabilities-allow\"");
+ exit(fret);
+ }
+
+ if (c->is_defined(c)) {
+ lxc_error("%s\n", "Container \"capabilities-allow\" is defined");
+ goto on_error_put;
+ }
+
+ if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) {
+ lxc_error("%s\n", "Failed to create busybox container \"capabilities-allow\"");
+ goto on_error_put;
+ }
+
+ if (!c->is_defined(c)) {
+ lxc_error("%s\n", "Container \"capabilities-allow\" is not defined");
+ goto on_error_destroy;
+ }
+
+ if (!c->clear_config_item(c, "lxc.cap.drop")) {
+ lxc_error("%s\n", "Failed to clear config item \"lxc.cap.drop\"");
+ goto on_error_destroy;
+ }
+
+ if (!c->clear_config_item(c, "lxc.cap.keep")) {
+ lxc_error("%s\n", "Failed to clear config item \"lxc.cap.drop\"");
+ goto on_error_destroy;
+ }
+
+ if (!c->set_config_item(c, "lxc.cap.keep", "mknod")) {
+ lxc_error("%s\n", "Failed to set config item \"lxc.cap.keep=mknod\"");
+ goto on_error_destroy;
+ }
+
+ if (!c->want_daemonize(c, true)) {
+ lxc_error("%s\n", "Failed to mark container \"capabilities-allow\" daemonized");
+ goto on_error_destroy;
+ }
+
+ if (!c->startl(c, 0, NULL)) {
+ lxc_error("%s\n", "Failed to start container \"capabilities-allow\" daemonized");
+ goto on_error_destroy;
+ }
+
+ ret = c->attach(c, capabilities_allow, NULL, &attach_options, &pid);
+ if (ret < 0) {
+ lxc_error("%s\n", "Failed to run function in container \"capabilities-allow\"");
+ goto on_error_stop;
+ }
+
+ ret = wait_for_pid(pid);
+ if (ret) {
+ lxc_error("%s\n", "Function \"capabilities-allow\" failed");
+ goto on_error_stop;
+ }
+
+ fret = 0;
+
+on_error_stop:
+ if (c->is_running(c) && !c->stop(c))
+ lxc_error("%s\n", "Failed to stop container \"capabilities-allow\"");
+
+on_error_destroy:
+ if (!c->destroy(c))
+ lxc_error("%s\n", "Failed to destroy container \"capabilities-allow\"");
+
+on_error_put:
+ lxc_container_put(c);
+
+ if (fret == EXIT_SUCCESS) {
+ lxc_debug("%s\n", "All capability allow tests passed");
+ } else {
+ int fd;
+
+ fd = open(template, O_RDONLY);
+ if (fd >= 0) {
+ char buf[4096];
+ ssize_t buflen;
+ while ((buflen = read(fd, buf, 1024)) > 0) {
+ buflen = write(STDERR_FILENO, buf, buflen);
+ if (buflen <= 0)
+ break;
+ }
+ close(fd);
+ }
+ }
+ (void)unlink(template);
+
+ exit(fret);
+}
+
+#else /* !HAVE_LIBCAP */
+
+int main(int argc, char *argv[])
+{
+ lxc_debug("%s\n", "Capabilities not supported. Skipping.");
+ exit(EXIT_SUCCESS);
+}
+#endif
projects / mirror_lxc.git / commitdiff