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tests: add lxc.proc.* test
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner
parent
b8eb6ca709
commit
20acdbb8c2
1
.gitignore
vendored
1
.gitignore
vendored
@ -97,6 +97,7 @@ src/tests/lxc-test-utils*
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src/tests/lxc-usernic-test
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src/tests/lxc-test-config-jump-table
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src/tests/lxc-test-parse-config-file
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src/tests/lxc-test-proc-pid
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src/tests/lxc-test-shortlived
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src/tests/lxc-test-api-reboot
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src/tests/lxc-test-criu-check-feature
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@ -1438,6 +1438,87 @@ lxc_test_sysctls_SOURCES += ../include/prlimit.c ../include/prlimit.h
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endif
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endif
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lxc_test_proc_pid_SOURCES = proc_pid.c \
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../lxc/af_unix.c ../lxc/af_unix.h \
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../lxc/caps.c ../lxc/caps.h \
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../lxc/cgroups/cgfsng.c \
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../lxc/cgroups/cgroup.c ../lxc/cgroups/cgroup.h \
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../lxc/cgroups/cgroup2_devices.c ../lxc/cgroups/cgroup2_devices.h \
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../lxc/cgroups/cgroup_utils.c ../lxc/cgroups/cgroup_utils.h \
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../lxc/commands.c ../lxc/commands.h \
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../lxc/commands_utils.c ../lxc/commands_utils.h \
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../lxc/conf.c ../lxc/conf.h \
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../lxc/confile.c ../lxc/confile.h \
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../lxc/confile_utils.c ../lxc/confile_utils.h \
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../lxc/error.c ../lxc/error.h \
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../lxc/file_utils.c ../lxc/file_utils.h \
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../include/netns_ifaddrs.c ../include/netns_ifaddrs.h \
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../lxc/initutils.c ../lxc/initutils.h \
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../lxc/log.c ../lxc/log.h \
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../lxc/lxclock.c ../lxc/lxclock.h \
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../lxc/mainloop.c ../lxc/mainloop.h \
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../lxc/monitor.c ../lxc/monitor.h \
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../lxc/mount_utils.c ../lxc/mount_utils.h \
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../lxc/namespace.c ../lxc/namespace.h \
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../lxc/network.c ../lxc/network.h \
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../lxc/nl.c ../lxc/nl.h \
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../lxc/parse.c ../lxc/parse.h \
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../lxc/process_utils.c ../lxc/process_utils.h \
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../lxc/ringbuf.c ../lxc/ringbuf.h \
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../lxc/start.c ../lxc/start.h \
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../lxc/state.c ../lxc/state.h \
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../lxc/storage/btrfs.c ../lxc/storage/btrfs.h \
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../lxc/storage/dir.c ../lxc/storage/dir.h \
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../lxc/storage/loop.c ../lxc/storage/loop.h \
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../lxc/storage/lvm.c ../lxc/storage/lvm.h \
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../lxc/storage/nbd.c ../lxc/storage/nbd.h \
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../lxc/storage/overlay.c ../lxc/storage/overlay.h \
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../lxc/storage/rbd.c ../lxc/storage/rbd.h \
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../lxc/storage/rsync.c ../lxc/storage/rsync.h \
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../lxc/storage/storage.c ../lxc/storage/storage.h \
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../lxc/storage/storage_utils.c ../lxc/storage/storage_utils.h \
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../lxc/storage/zfs.c ../lxc/storage/zfs.h \
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../lxc/sync.c ../lxc/sync.h \
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../lxc/string_utils.c ../lxc/string_utils.h \
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../lxc/terminal.c ../lxc/terminal.h \
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../lxc/utils.c ../lxc/utils.h \
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../lxc/uuid.c ../lxc/uuid.h \
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$(LSM_SOURCES)
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if ENABLE_SECCOMP
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lxc_test_proc_pid_SOURCES += ../lxc/seccomp.c ../lxc/lxcseccomp.h
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endif
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if !HAVE_STRCHRNUL
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lxc_test_proc_pid_SOURCES += ../include/strchrnul.c ../include/strchrnul.h
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endif
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if !HAVE_STRLCPY
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lxc_test_proc_pid_SOURCES += ../include/strlcpy.c ../include/strlcpy.h
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endif
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if !HAVE_STRLCAT
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lxc_test_proc_pid_SOURCES += ../include/strlcat.c ../include/strlcat.h
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endif
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if !HAVE_OPENPTY
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lxc_test_proc_pid_SOURCES += ../include/openpty.c ../include/openpty.h
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endif
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if IS_BIONIC
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lxc_test_proc_pid_SOURCES += ../include/fexecve.c ../include/fexecve.h \
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../include/lxcmntent.c ../include/lxcmntent.h
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endif
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if !HAVE_GETGRGID_R
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lxc_test_proc_pid_SOURCES += ../include/getgrgid_r.c ../include/getgrgid_r.h
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endif
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if !HAVE_PRLIMIT
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if HAVE_PRLIMIT64
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lxc_test_proc_pid_SOURCES += ../include/prlimit.c ../include/prlimit.h
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endif
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endif
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AM_CFLAGS += -DLXCROOTFSMOUNT=\"$(LXCROOTFSMOUNT)\" \
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-DLXCPATH=\"$(LXCPATH)\" \
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-DLXC_GLOBAL_CONF=\"$(LXC_GLOBAL_CONF)\" \
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@ -1497,6 +1578,7 @@ bin_PROGRAMS = lxc-test-api-reboot \
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lxc-test-may-control \
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lxc-test-mount-injection \
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lxc-test-parse-config-file \
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lxc-test-proc-pid \
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lxc-test-raw-clone \
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lxc-test-reboot \
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lxc-test-rootfs-options \
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@ -1609,6 +1691,7 @@ EXTRA_DIST = arch_parse.c \
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may_control.c \
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mount_injection.c \
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parse_config_file.c \
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proc_pid.c \
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rootfs_options.c \
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saveconfig.c \
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shortlived.c \
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170
src/tests/proc_pid.c
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170
src/tests/proc_pid.c
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@ -0,0 +1,170 @@
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/* SPDX-License-Identifier: LGPL-2.1+ */
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include "lxccontainer.h"
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#include "attach_options.h"
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#include "lxctest.h"
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#include "utils.h"
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#define CONTAINER_NAME "test-proc-pid"
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#define PROC_INIT_PATH "/proc/1/oom_score_adj"
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#define PROC_SELF_PATH "/proc/self/oom_score_adj"
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static int check_oom_score_adj(void *payload)
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{
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__do_close int fd = -EBADF;
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char buf[INTTYPE_TO_STRLEN(__s64)];
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ssize_t ret;
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fd = open(PROC_INIT_PATH, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
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if (fd < 0) {
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lxc_error("Failed to open " PROC_INIT_PATH);
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return EXIT_FAILURE;
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}
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ret = lxc_read_nointr(fd, buf, sizeof(buf));
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if (ret < 0 || (size_t)ret >= sizeof(buf)) {
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lxc_error("Failed to read " PROC_INIT_PATH);
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return EXIT_FAILURE;
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}
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buf[ret] = '\0';
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remove_trailing_newlines(buf);
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if (!strequal(buf, "-1000")) {
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lxc_error("Unexpected value %s for " PROC_INIT_PATH, buf);
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return EXIT_FAILURE;
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}
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return EXIT_SUCCESS;
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}
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int main(int argc, char *argv[])
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{
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int fd_log = -EBADF, fret = EXIT_FAILURE;
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lxc_attach_options_t attach_options = LXC_ATTACH_OPTIONS_DEFAULT;
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int ret;
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pid_t pid;
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struct lxc_container *c;
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struct lxc_log log;
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char template[sizeof(P_tmpdir "/" CONTAINER_NAME "_XXXXXX")];
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if (!file_exists(PROC_SELF_PATH)) {
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lxc_debug("The sysctl path \"" PROC_SELF_PATH "\" needed for this test does not exist. Skipping");
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exit(EXIT_SUCCESS);
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}
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(void)strlcpy(template, P_tmpdir "/" CONTAINER_NAME "_XXXXXX", sizeof(template));
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fd_log = lxc_make_tmpfile(template, false);
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if (fd_log < 0) {
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lxc_error("%s", "Failed to create temporary log file for container \"capabilities\"");
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return fret;
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}
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log.name = CONTAINER_NAME;
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log.file = template;
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log.level = "TRACE";
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log.prefix = CONTAINER_NAME;
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log.quiet = false;
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log.lxcpath = NULL;
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if (lxc_log_init(&log))
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exit(fret);
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c = lxc_container_new(CONTAINER_NAME, NULL);
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if (!c) {
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lxc_error("%s", "Failed to create container " CONTAINER_NAME);
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exit(fret);
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}
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if (c->is_defined(c)) {
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lxc_error("%s\n", "Container " CONTAINER_NAME " is defined");
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goto on_error_put;
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}
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if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) {
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lxc_error("%s\n", "Failed to create busybox container " CONTAINER_NAME);
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goto on_error_put;
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}
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if (!c->is_defined(c)) {
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lxc_error("%s\n", "Container " CONTAINER_NAME " is not defined");
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goto on_error_destroy;
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}
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if (!c->set_config_item(c, "lxc.mount.auto", "proc:rw")) {
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lxc_error("%s\n", "Failed to set config item \"lxc.mount.auto=proc:rw\"");
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goto on_error_destroy;
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}
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if (!c->clear_config_item(c, "lxc.proc.oom_score_adj")) {
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lxc_error("%s\n", "Failed to clear config item \"lxc.proc.oom_score_adj\"");
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goto on_error_destroy;
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}
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if (!c->set_config_item(c, "lxc.proc.oom_score_adj", "-1000")) {
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lxc_error("%s\n", "Failed to set config item \"lxc.proc.oom_score_adj=-1000\"");
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goto on_error_destroy;
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}
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if (!c->want_daemonize(c, true)) {
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lxc_error("%s\n", "Failed to mark container " CONTAINER_NAME " daemonized");
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goto on_error_destroy;
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}
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if (!c->startl(c, 0, NULL)) {
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lxc_error("%s\n", "Failed to start container " CONTAINER_NAME " daemonized");
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goto on_error_destroy;
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}
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/* Leave some time for the container to write something to the log. */
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sleep(2);
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ret = c->attach(c, check_oom_score_adj, NULL, &attach_options, &pid);
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if (ret < 0) {
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lxc_error("%s\n", "Failed to run function in container " CONTAINER_NAME);
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goto on_error_stop;
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}
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ret = wait_for_pid(pid);
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if (ret < 0) {
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lxc_error("%s\n", "Function "CONTAINER_NAME" failed");
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goto on_error_stop;
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}
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fret = 0;
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on_error_stop:
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if (c->is_running(c) && !c->stop(c))
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lxc_error("%s\n", "Failed to stop container " CONTAINER_NAME);
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on_error_destroy:
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if (!c->destroy(c))
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lxc_error("%s\n", "Failed to destroy container " CONTAINER_NAME);
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on_error_put:
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lxc_container_put(c);
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if (fret == EXIT_SUCCESS) {
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lxc_debug("All \"/proc/<pid>\" tests passed\n");
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} else {
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char buf[4096];
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ssize_t buflen;
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while ((buflen = read(fd_log, buf, 1024)) > 0) {
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buflen = write(STDERR_FILENO, buf, buflen);
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if (buflen <= 0)
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break;
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}
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}
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close_prot_errno_disarm(fd_log);
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(void)unlink(template);
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exit(fret);
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}
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