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https://github.com/projectacrn/acrn-hypervisor.git
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4e8adc7b14
In the config module, the following functions are implemented: - load_config Provide one interface to load lifecycle manager configuration from config file (life_mngr.conf), in the config file, user can specify the VM type of VM which lifecycle manager will run in, the VM name, the communication device name, and the device name in service VM which is used to communicate with the VM which is allowed to send system shutdown request. - check_dir Check folder exist or not, if not, create the folder - get_allow_s5_config Get the name of the device which is allowed to trigger system shutdown. v1-->v2: Add comments in head file. v2-->v3: Update some log message. v3-->v6: Simply configuration item parsing logic. Add get_allow_s5_config interface. Tracked-On: #6652 Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com> Reviewed-by: fei1.li@intel.com
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
/*
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* Copyright (C)2021 Intel Corporation
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "log.h"
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#include "config.h"
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struct life_mngr_config life_conf;
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int check_dir(const char *path, int flags)
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{
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struct stat st;
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if (stat(path, &st)) {
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if (flags) {
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if (mkdir(path, 0666)) {
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LOG_PRINTF("Failed to create folder (%s)\n", path);
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return -1;
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}
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return 0;
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} else {
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LOG_PRINTF("%s doesn't exist!\n", path);
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return -1;
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}
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}
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if (S_ISDIR(st.st_mode))
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return 0;
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fprintf(stderr, "%s exists, and is not a directory!\n", path);
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return -1;
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}
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bool load_config(char *conf_path)
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{
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int pos;
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char buf[MAX_FILE_LINE_LEN];
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char *key_str, *value_str;
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FILE *fd;
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int ret;
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ret = check_dir(LIFE_MNGR_CONFIG_FOLDER, CHK_CREAT);
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if (ret) {
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LOG_PRINTF("%s %d\r\n", __func__, __LINE__);
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return false;
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}
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fd = fopen(conf_path, "r");
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if (fd == NULL) {
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LOG_PRINTF("Failed to open config file: %s", conf_path);
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return false;
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}
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while (fgets(buf, MAX_FILE_LINE_LEN, fd) != NULL) {
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pos = 0;
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while (buf[pos] == ' ')
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pos++;
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key_str = &buf[pos];
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if (key_str[0] == '#' || key_str[0] == '\n')
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continue;
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(void) strtok_r(key_str, "=", &value_str);
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if (strlen(value_str) == 0) {
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LOG_PRINTF("Config file: config item (%s) is invalid\n", buf);
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continue;
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}
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value_str[strlen(value_str) - 1] = '\0';
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LOG_PRINTF("Config file: key=%s, value=%s\n", key_str, value_str);
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if (strncmp(VM_TYPE, (const char *)key_str, sizeof(VM_TYPE)) == 0)
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memcpy(life_conf.vm_type, value_str, strlen(value_str));
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else if (strncmp(VM_NAME, (const char *)key_str, sizeof(VM_NAME)) == 0)
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memcpy(life_conf.vm_name, value_str, strlen(value_str));
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else if (strncmp(DEV_NAME, (const char *)key_str, sizeof(DEV_NAME)) == 0)
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memcpy(life_conf.dev_names, value_str, strlen(value_str));
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else if (strncmp(ALLOW_TRIGGER_S5, (const char *)key_str,
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sizeof(ALLOW_TRIGGER_S5)) == 0)
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memcpy(life_conf.allow_trigger_s5, value_str, strlen(value_str));
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else
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LOG_PRINTF("Invalid item in the configuration file, key=%s, value=%s\n",
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key_str, value_str);
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}
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if (strlen(life_conf.vm_name) == 0) {
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LOG_WRITE("Invalid VM name in configuration file\n");
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return false;
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}
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return true;
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}
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