#include <paths.h>
|
#include <sys/stat.h>
|
#include <stdio.h>
|
#include <cerrno>
|
#include <cstring>
|
#include <string>
|
#include "../os.h"
|
#include "../../base/logger.h"
|
|
#include <mntent.h>
|
#include <dirent.h>
|
#include <sys/utsname.h>
|
#ifndef NDEBUG
|
#include <valgrind/memcheck.h>
|
#endif
|
|
#ifdef USE_DBUS
|
#include <dbus-1.0/dbus/dbus.h>
|
#endif
|
|
/**
|
*Usually uuid are hex number separated by "-". this method read up to 8 hex
|
*numbers skipping - characters.
|
*@param uuid uuid as read in /dev/disk/by-uuid
|
*@param buffer_out: unsigned char buffer[8] output buffer for result
|
*/
|
static void parseUUID(const char *uuid, unsigned char *buffer_out, unsigned int out_size) {
|
unsigned int i, j;
|
char *hexuuid;
|
unsigned char cur_character;
|
// remove characters not in hex set
|
size_t len = strlen(uuid);
|
hexuuid = (char *)malloc(sizeof(char) * len);
|
memset(buffer_out, 0, out_size);
|
memset(hexuuid, 0, sizeof(char) * len);
|
|
for (i = 0, j = 0; i < len; i++) {
|
if (isxdigit(uuid[i])) {
|
hexuuid[j] = uuid[i];
|
j++;
|
} else {
|
// skip
|
continue;
|
}
|
}
|
if (j % 2 == 1) {
|
hexuuid[j++] = '0';
|
}
|
hexuuid[j] = '\0';
|
for (i = 0; i < j / 2; i++) {
|
sscanf(&hexuuid[i * 2], "%2hhx", &cur_character);
|
buffer_out[i % out_size] = buffer_out[i % out_size] ^ cur_character;
|
}
|
|
free(hexuuid);
|
}
|
|
#define MAX_UNITS 40
|
FUNCTION_RETURN getDiskInfos(DiskInfo *diskInfos, size_t *disk_info_size) {
|
struct stat mount_stat, sym_stat;
|
/*static char discard[1024];
|
char device[64], name[64], type[64];
|
*/
|
char cur_dir[MAX_PATH];
|
struct mntent *ent;
|
|
int maxDrives, currentDrive, i, drive_found;
|
__ino64_t *statDrives = NULL;
|
DiskInfo *tmpDrives = NULL;
|
FILE *aFile = NULL;
|
DIR *disk_by_uuid_dir = NULL, *disk_by_label = NULL;
|
struct dirent *dir = NULL;
|
FUNCTION_RETURN result;
|
|
if (diskInfos != NULL) {
|
maxDrives = *disk_info_size;
|
tmpDrives = diskInfos;
|
} else {
|
maxDrives = MAX_UNITS;
|
tmpDrives = (DiskInfo *)malloc(sizeof(DiskInfo) * maxDrives);
|
}
|
memset(tmpDrives, 0, sizeof(DiskInfo) * maxDrives);
|
statDrives = (__ino64_t *)malloc(maxDrives * sizeof(__ino64_t));
|
memset(statDrives, 0, sizeof(__ino64_t) * maxDrives);
|
|
aFile = setmntent("/proc/mounts", "r");
|
if (aFile == NULL) {
|
/*proc not mounted*/
|
free(tmpDrives);
|
free(statDrives);
|
return FUNC_RET_ERROR;
|
}
|
|
currentDrive = 0;
|
while (NULL != (ent = getmntent(aFile)) && currentDrive < maxDrives) {
|
if ((strncmp(ent->mnt_type, "ext", 3) == 0 || strncmp(ent->mnt_type, "xfs", 3) == 0 ||
|
strncmp(ent->mnt_type, "vfat", 4) == 0 || strncmp(ent->mnt_type, "ntfs", 4) == 0 ||
|
strncmp(ent->mnt_type, "btr", 3) == 0) &&
|
ent->mnt_fsname != NULL && strncmp(ent->mnt_fsname, "/dev/", 5) == 0) {
|
if (stat(ent->mnt_fsname, &mount_stat) == 0) {
|
drive_found = -1;
|
for (i = 0; i < currentDrive; i++) {
|
if (statDrives[i] == mount_stat.st_ino) {
|
drive_found = i;
|
}
|
}
|
if (drive_found == -1) {
|
LOG_DEBUG("mntent fs:[%s],dir:[%s],inode:[%d]\n", ent->mnt_fsname, ent->mnt_dir,
|
(unsigned long int)mount_stat.st_ino);
|
strncpy(tmpDrives[currentDrive].device, ent->mnt_fsname, 255 - 1);
|
statDrives[currentDrive] = mount_stat.st_ino;
|
drive_found = currentDrive;
|
currentDrive++;
|
}
|
if (strcmp(ent->mnt_dir, "/") == 0) {
|
strcpy(tmpDrives[drive_found].label, "root");
|
LOG_DEBUG("drive %s set to preferred\n", ent->mnt_fsname);
|
tmpDrives[drive_found].preferred = 1;
|
} else {
|
tmpDrives[drive_found].preferred = 0;
|
}
|
} else {
|
LOG_DEBUG("Error %s during stat of %s \n", std::strerror(errno), ent->mnt_fsname);
|
}
|
}
|
}
|
endmntent(aFile);
|
|
if (diskInfos == NULL) {
|
*disk_info_size = currentDrive;
|
free(tmpDrives);
|
result = (currentDrive > 0) ? FUNC_RET_OK : FUNC_RET_NOT_AVAIL;
|
} else if (*disk_info_size >= currentDrive) {
|
disk_by_uuid_dir = opendir("/dev/disk/by-uuid");
|
if (disk_by_uuid_dir == nullptr) {
|
LOG_WARN("Open /dev/disk/by-uuid fail");
|
free(statDrives);
|
return FUNC_RET_ERROR;
|
}
|
result = FUNC_RET_OK;
|
*disk_info_size = currentDrive;
|
|
while ((dir = readdir(disk_by_uuid_dir)) != nullptr) {
|
std::string cur_dir("/dev/disk/by-uuid/");
|
cur_dir += dir->d_name;
|
bool found = false;
|
if (stat(cur_dir.c_str(), &sym_stat) == 0) {
|
for (i = 0; i < currentDrive; i++) {
|
if (sym_stat.st_ino == statDrives[i]) {
|
found = true;
|
parseUUID(dir->d_name, tmpDrives[i].disk_sn, sizeof(tmpDrives[i].disk_sn));
|
#ifndef NDEBUG
|
VALGRIND_CHECK_VALUE_IS_DEFINED(tmpDrives[i].device);
|
LOG_DEBUG("uuid %d %s %02x%02x%02x%02x\n", i, tmpDrives[i].device, tmpDrives[i].disk_sn[0],
|
tmpDrives[i].disk_sn[1], tmpDrives[i].disk_sn[2], tmpDrives[i].disk_sn[3]);
|
#endif
|
}
|
}
|
if (!found) {
|
LOG_DEBUG("Drive [%s] inode [%d] did not match any existing drive\n", cur_dir,
|
(unsigned long int)sym_stat.st_ino);
|
}
|
} else {
|
LOG_DEBUG("Error %s during stat of %s \n", std::strerror(errno), cur_dir);
|
}
|
}
|
closedir(disk_by_uuid_dir);
|
|
disk_by_label = opendir("/dev/disk/by-label");
|
if (disk_by_label != NULL) {
|
while ((dir = readdir(disk_by_label)) != NULL) {
|
strcpy(cur_dir, "/dev/disk/by-label/");
|
strcat(cur_dir, dir->d_name);
|
if (stat(cur_dir, &sym_stat) == 0) {
|
for (i = 0; i < currentDrive; i++) {
|
if (sym_stat.st_ino == statDrives[i]) {
|
strncpy(tmpDrives[i].label, dir->d_name, 255 - 1);
|
LOG_DEBUG("label %d %s %s\n", i, tmpDrives[i].label, tmpDrives[i].device);
|
}
|
}
|
}
|
}
|
closedir(disk_by_label);
|
}
|
} else {
|
result = FUNC_RET_BUFFER_TOO_SMALL;
|
}
|
free(statDrives);
|
return result;
|
}
|
|
FUNCTION_RETURN getMachineName(unsigned char identifier[6]) {
|
static struct utsname u;
|
|
if (uname(&u) < 0) {
|
return FUNC_RET_ERROR;
|
}
|
memcpy(identifier, u.nodename, 6);
|
return FUNC_RET_OK;
|
}
|
|
FUNCTION_RETURN getOsSpecificIdentifier(unsigned char identifier[6]) {
|
#if USE_DBUS
|
char *dbus_id = dbus_get_local_machine_id();
|
if (dbus_id == NULL) {
|
return FUNC_RET_ERROR;
|
}
|
memcpy(identifier, dbus_id, 6);
|
dbus_free(dbus_id);
|
return FUNC_RET_OK;
|
#else
|
return FUNC_RET_NOT_AVAIL;
|
#endif
|
}
|
|
FUNCTION_RETURN getModuleName(char buffer[MAX_PATH]) {
|
FUNCTION_RETURN result;
|
char path[MAX_PATH] = {0};
|
char proc_path[MAX_PATH], pidStr[64];
|
pid_t pid = getpid();
|
sprintf(pidStr, "%d", pid);
|
strcpy(proc_path, "/proc/");
|
strcat(proc_path, pidStr);
|
strcat(proc_path, "/exe");
|
|
int ch = readlink(proc_path, path, MAX_PATH - 1);
|
if (ch != -1) {
|
path[ch] = '\0';
|
strncpy(buffer, path, ch);
|
result = FUNC_RET_OK;
|
} else {
|
result = FUNC_RET_ERROR;
|
}
|
return result;
|
}
|
