tools: acrn-crashlog: system properties for acrnprobe

Acrnprobe needs to know some HW/SW properties, such as board version,
build version. These properties APIs are provided in this file.

Signed-off-by: Liu Xinwu <xinwu.liu@intel.com>
Reviewed-by: Zhang Yanmin <yanmin.zhang@intel.com>
Reviewed-by: Liu Chuansheng <chuansheng.liu@intel.com>
Reviewed-by: Zhao Yakui <yakui.zhao@intel.com>
Reviewed-by: Geoffroy Van Cutsem <geoffroy.vancutsem@intel.com>
Acked-by: Eddie Dong <Eddie.dong@intel.com>

tools/acrn-crashlog/acrnprobe/Makefile

@@ -26,7 +26,8 @@ $(BUILDDIR)/acrnprobe/bin/acrnprobe: $(BUILDDIR)/acrnprobe/obj/main.o \
 	$(BUILDDIR)/acrnprobe/obj/event_handler.o \
 	$(BUILDDIR)/acrnprobe/obj/crash_reclassify.o \
 	$(BUILDDIR)/acrnprobe/obj/sender.o \
-	$(BUILDDIR)/acrnprobe/obj/startupreason.o
+	$(BUILDDIR)/acrnprobe/obj/startupreason.o \
+	$(BUILDDIR)/acrnprobe/obj/property.o
 	$(CC) -o $@ $^ $(LDFLAGS)
 
 clean:

tools/acrn-crashlog/acrnprobe/include/property.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2018 Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __PROPERTY_H__
+#define __PROPERTY_H__
+#include "load_conf.h"
+
+#define VERSION_SIZE       256
+
+char guuid[VERSION_SIZE];
+char gbuildversion[VERSION_SIZE];
+
+int init_properties(struct sender_t *sender);
+int swupdated(struct sender_t *sender);
+
+#endif

tools/acrn-crashlog/acrnprobe/property.c

@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2018 Intel Corporation
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+/*
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <openssl/sha.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "property.h"
+#include "log_sys.h"
+#include "fsutils.h"
+
+#define MACHINE_ID		"/etc/machine-id"
+#define OS_VERSION		"/usr/lib/os-release"
+#define OS_VERSION_KEY		"VERSION_ID="
+#define DEVICE_ID_UNKNOWN	"UnknownId"
+#define LOG_UUID		"uuid.txt"
+#define LOG_BUILDID		"buildid.txt"
+
+static void get_device_id(struct sender_t *sender)
+{
+	int ret;
+	char *loguuid;
+
+
+	ret = asprintf(&loguuid, "%s/%s", sender->outdir, LOG_UUID);
+	if (ret < 0) {
+		LOGE("compute string failed, out of memory\n");
+		return;
+	}
+
+	ret = file_read_string(MACHINE_ID, guuid, VERSION_SIZE);
+	if (ret <= 0)
+		LOGE("Could not get mmc id: %d (%s)\n",
+		     ret, strerror(-ret));
+	else
+		goto write;
+
+	LOGE("Could not find DeviceId, set it to '%s'\n",
+	     DEVICE_ID_UNKNOWN);
+	strncpy(guuid, DEVICE_ID_UNKNOWN, strlen(DEVICE_ID_UNKNOWN));
+
+write:
+	overwrite_file(loguuid, guuid);
+	free(loguuid);
+}
+
+static int get_buildversion(struct sender_t *sender)
+{
+	int ret;
+	char lastbuild[VERSION_SIZE];
+	char *logbuildid;
+	char *currentbuild = gbuildversion;
+
+	ret = file_read_key_value(OS_VERSION, OS_VERSION_KEY, gbuildversion);
+	if (ret <= 0) {
+		LOGE("failed to get version from %s, error (%s)\n",
+		     OS_VERSION, strerror(-ret));
+		return ret;
+	}
+
+	ret = asprintf(&logbuildid, "%s/%s", sender->outdir, LOG_BUILDID);
+	if (ret < 0) {
+		LOGE("compute string failed, out of memory\n");
+		return ret;
+	}
+
+	ret = file_read_string(logbuildid, lastbuild, VERSION_SIZE);
+	if (ret == -ENOENT ||
+	    (ret > 0 && strcmp(currentbuild, lastbuild))) {
+		/* build changed or file not found, overwrite it */
+		ret = overwrite_file(logbuildid, gbuildversion);
+		if (ret) {
+			LOGE("create (%s) failed, error (%s)\n", logbuildid,
+			     strerror(-ret));
+			goto free;
+		}
+
+		sender->sw_updated = 1;
+		ret = 0;
+	} else if (ret <= 0) {
+		LOGE("Cannot read %s, error (%s)\n",
+		     logbuildid, strerror(errno));
+	} else {
+		/* buildid is the same */
+		sender->sw_updated = 0;
+		ret = 0;
+	}
+free:
+	free(logbuildid);
+	return ret;
+}
+
+int swupdated(struct sender_t *sender)
+{
+	return sender->sw_updated;
+}
+
+int init_properties(struct sender_t *sender)
+{
+	int ret;
+
+	ret = get_buildversion(sender);
+	if (ret) {
+		LOGE("init properties failed\n");
+		return ret;
+	}
+	get_device_id(sender);
+	return 0;
+}