lcr: support syslog for console log

Signed-off-by: NLiuHao <liuhao27@huawei.com>

lcr.spec

 %global _version 2.0.0
-%global _release 20200318.003237.gitcdd4f8ab
+%global _release 20200402.161208.git1eb4b458
 Name:      lcr
 Version:   %{_version}
 Release:   %{_release}

src/conf.c

@@ -182,6 +182,28 @@ static int check_cgroup_dir(const char *value)
     return 0;
 }
 
+static int check_empty_value(const char *value)
+{
+    if (value == NULL || strlen(value) == 0) {
+        return -1;
+    }
+    return 0;
+}
+
+static int check_console_log_driver(const char *value)
+{
+    if (value == NULL || strlen(value) == 0) {
+        return -1;
+    }
+    if (strcmp(value, "syslog") == 0) {
+        return 0;
+    }
+    if (strcmp(value, "json-file") == 0) {
+        return 0;
+    }
+    return -1;
+}
+
 static const lcr_annotation_item_t g_require_annotations[] = {
     {
         "files.limit",
@@ -203,6 +225,21 @@ static const lcr_annotation_item_t g_require_annotations[] = {
         "lxc.console.rotate",
         check_console_log_filerotate,
     },
+    {
+        "log.console.driver",
+        "lxc.console.logdriver",
+        check_console_log_driver,
+    },
+    {
+        "log.console.tag",
+        "lxc.console.syslog_tag",
+        check_empty_value,
+    },
+    {
+        "log.console.facility",
+        "lxc.console.syslog_facility",
+        check_empty_value,
+    },
     {
         "rootfs.mount",
         "lxc.rootfs.mount",