acrn-hypervisor/misc/services/life_mngr/config.c

100 lines
2.6 KiB
C

/*
* Copyright (C)2021-2022 Intel Corporation.
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "log.h"
#include "config.h"
struct life_mngr_config life_conf;
int check_dir(const char *path, int flags)
{
struct stat st;
if (stat(path, &st)) {
if (flags) {
if (mkdir(path, 0666)) {
LOG_PRINTF("Failed to create folder (%s)\n", path);
return -1;
}
return 0;
} else {
LOG_PRINTF("%s doesn't exist!\n", path);
return -1;
}
}
if (S_ISDIR(st.st_mode))
return 0;
fprintf(stderr, "%s exists, and is not a directory!\n", path);
return -1;
}
bool load_config(char *conf_path)
{
int pos;
char buf[MAX_FILE_LINE_LEN];
char *key_str, *value_str;
FILE *fd;
int ret;
ret = check_dir(LIFE_MNGR_CONFIG_FOLDER, CHK_CREAT);
if (ret) {
LOG_PRINTF("%s %d\r\n", __func__, __LINE__);
return false;
}
fd = fopen(conf_path, "r");
if (fd == NULL) {
LOG_PRINTF("Failed to open config file: %s", conf_path);
return false;
}
while (fgets(buf, MAX_FILE_LINE_LEN, fd) != NULL) {
pos = 0;
while (buf[pos] == ' ')
pos++;
key_str = &buf[pos];
if (key_str[0] == '#' || key_str[0] == '\n')
continue;
(void) strtok_r(key_str, "=", &value_str);
if (strlen(value_str) == 0) {
LOG_PRINTF("Config file: config item (%s) is invalid\n", buf);
continue;
}
value_str[strlen(value_str) - 1] = '\0';
LOG_PRINTF("Config file: key=%s, value=%s\n", key_str, value_str);
if (strncmp(VM_TYPE, (const char *)key_str, sizeof(VM_TYPE)) == 0)
memcpy(life_conf.vm_type, value_str, strlen(value_str));
else if (strncmp(VM_NAME, (const char *)key_str, sizeof(VM_NAME)) == 0)
memcpy(life_conf.vm_name, value_str, strlen(value_str));
else if (strncmp(DEV_NAME, (const char *)key_str, sizeof(DEV_NAME)) == 0)
memcpy(life_conf.dev_names, value_str, strlen(value_str));
else if (strncmp(ALLOW_TRIGGER_S5, (const char *)key_str,
sizeof(ALLOW_TRIGGER_S5)) == 0)
memcpy(life_conf.allow_trigger_s5, value_str, strlen(value_str));
else if (strncmp(ALLOW_TRIGGER_SYSREBOOT, (const char *)key_str,
sizeof(ALLOW_TRIGGER_SYSREBOOT)) == 0)
memcpy(life_conf.allow_trigger_sysreboot, value_str, strlen(value_str));
else
LOG_PRINTF("Invalid item in the configuration file, key=%s, value=%s\n",
key_str, value_str);
}
if (strlen(life_conf.vm_name) == 0) {
LOG_WRITE("Invalid VM name in configuration file\n");
return false;
}
return true;
}