--- /dev/null
+/* liblxcapi
+ *
+ * Copyright © 2017 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.
+ */
+
+#define __STDC_FORMAT_MACROS
+#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 <lxc/lxccontainer.h>
+
+#include "lxctest.h"
+#include "utils.h"
+
+int main(int argc, char *argv[])
+{
+ int logfd, ret;
+ char buf[4096 + 1];
+ ssize_t bytes;
+ struct stat st;
+ struct lxc_container *c;
+ struct lxc_console_log log;
+ bool do_unlink = false;
+ int fret = EXIT_FAILURE;
+
+ c = lxc_container_new("console-log", NULL);
+ if (!c) {
+ lxc_error("%s", "Failed to create container \"console-log\"");
+ exit(fret);
+ }
+
+ if (c->is_defined(c)) {
+ lxc_error("%s\n", "Container \"console-log\" is defined");
+ goto on_error_put;
+ }
+
+ /* Set console ringbuffer size. */
+ if (!c->set_config_item(c, "lxc.console.logsize", "4096")) {
+ lxc_error("%s\n", "Failed to set config item \"lxc.console.logsize\"");
+ goto on_error_put;
+ }
+
+ /* Set on-disk logfile. */
+ if (!c->set_config_item(c, "lxc.console.logfile", "/tmp/console-log.log")) {
+ lxc_error("%s\n", "Failed to set config item \"lxc.console.logfile\"");
+ goto on_error_put;
+ }
+
+ if (!c->createl(c, "busybox", NULL, NULL, 0, NULL)) {
+ lxc_error("%s\n", "Failed to create busybox container \"console-log\"");
+ goto on_error_put;
+ }
+
+ if (!c->is_defined(c)) {
+ lxc_error("%s\n", "Container \"console-log\" is not defined");
+ goto on_error_put;
+ }
+
+ c->clear_config(c);
+
+ if (!c->load_config(c, NULL)) {
+ lxc_error("%s\n", "Failed to load config for container \"console-log\"");
+ goto on_error_stop;
+ }
+
+ if (!c->want_daemonize(c, true)) {
+ lxc_error("%s\n", "Failed to mark container \"console-log\" daemonized");
+ goto on_error_stop;
+ }
+
+ if (!c->startl(c, 0, NULL)) {
+ lxc_error("%s\n", "Failed to start container \"console-log\" daemonized");
+ goto on_error_stop;
+ }
+
+ /* Leave some time for the container to write something to the log. */
+ sleep(2);
+
+ /* Retrieve the contents of the ringbuffer. */
+ log.clear = false;
+ log.read_max = &(uint64_t){0};
+ log.read = true;
+ log.write_logfile = false;
+
+ ret = c->console_log(c, &log);
+ if (ret < 0) {
+ lxc_error("%s - Failed to retrieve console log \n", strerror(-ret));
+ goto on_error_stop;
+ } else {
+ lxc_debug("Retrieved %" PRIu64
+ " bytes from console log. Contents are \"%s\"\n",
+ *log.read_max, log.data);
+ }
+
+ /* Leave another two seconds to ensure boot is finished. */
+ sleep(2);
+
+ /* Clear the console ringbuffer. */
+ log.read_max = &(uint64_t){0};
+ log.read = false;
+ log.write_logfile = false;
+ log.clear = true;
+ ret = c->console_log(c, &log);
+ if (ret < 0) {
+ if (ret != -ENODATA) {
+ lxc_error("%s - Failed to retrieve console log\n", strerror(-ret));
+ goto on_error_stop;
+ }
+ }
+
+ if (!c->stop(c)) {
+ lxc_error("%s\n", "Failed to stop container \"console-log\"");
+ goto on_error_stop;
+ }
+
+ if (!c->startl(c, 0, NULL)) {
+ lxc_error("%s\n", "Failed to start container \"console-log\" daemonized");
+ goto on_error_destroy;
+ }
+ do_unlink = true;
+
+ /* Leave some time for the container to write something to the log. */
+ sleep(2);
+
+ log.read_max = &(uint64_t){0};
+ log.read = true;
+ log.write_logfile = true;
+ log.clear = false;
+ ret = c->console_log(c, &log);
+ if (ret < 0) {
+ lxc_error("%s - Failed to retrieve console log \n", strerror(-ret));
+ goto on_error_stop;
+ } else {
+ lxc_debug("Retrieved %" PRIu64
+ " bytes from console log. Contents are \"%s\"\n",
+ *log.read_max, log.data);
+ }
+
+ logfd = open("/tmp/console-log.log", O_RDONLY);
+ if (logfd < 0) {
+ lxc_error("%s - Failed to open console log file "
+ "\"/tmp/console-log.log\"\n", strerror(errno));
+ goto on_error_stop;
+ }
+
+ bytes = lxc_read_nointr(logfd, buf, 4096 + 1);
+ close(logfd);
+ if (bytes < 0 || ((uint64_t)bytes != *log.read_max)) {
+ lxc_error("%s - Failed to read console log file "
+ "\"/tmp/console-log.log\"\n", strerror(errno));
+ goto on_error_stop;
+ }
+
+ ret = stat("/tmp/console-log.log", &st);
+ if (ret < 0) {
+ lxc_error("%s - Failed to stat on-disk logfile\n", strerror(errno));
+ goto on_error_stop;
+ }
+
+ if ((uint64_t)st.st_size != *log.read_max) {
+ lxc_error("On-disk logfile size and used ringbuffer size do "
+ "not match: %" PRIu64 " != %" PRIu64 "\n",
+ (uint64_t)st.st_size, *log.read_max);
+ goto on_error_stop;
+ }
+
+ if (memcmp(log.data, buf, *log.read_max)) {
+ lxc_error("%s - Contents of in-memory ringbuffer and on-disk "
+ "logfile do not match\n", strerror(errno));
+ goto on_error_stop;
+ } else {
+ lxc_debug("Retrieved %" PRIu64 " bytes from console log and "
+ "console log file. Contents are: \"%s\" - \"%s\"\n",
+ *log.read_max, log.data, buf);
+ }
+
+ fret = 0;
+
+on_error_stop:
+ if (c->is_running(c) && !c->stop(c))
+ lxc_error("%s\n", "Failed to stop container \"console-log\"");
+
+on_error_destroy:
+ if (!c->destroy(c))
+ lxc_error("%s\n", "Failed to destroy container \"console-log\"");
+
+on_error_put:
+ lxc_container_put(c);
+ if (do_unlink) {
+ ret = unlink("/tmp/console-log.log");
+ if (ret < 0)
+ lxc_error("%s - Failed to remove container log file\n", strerror(errno));
+ }
+ exit(fret);
+}
projects / mirror_lxc.git / commitdiff