From 79b1b57045e86d9845e352c3f2aa0efbab6111a9 Mon Sep 17 00:00:00 2001
From: gcontini <1121667+gcontini@users.noreply.github.com>
Date: 周六, 14 3月 2020 10:19:09 +0800
Subject: [PATCH] tests and improvements
---
src/library/os/linux/os-linux.c | 243 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 243 insertions(+), 0 deletions(-)
diff --git a/src/library/os/linux/os-linux.c b/src/library/os/linux/os-linux.c
new file mode 100644
index 0000000..57fb028
--- /dev/null
+++ b/src/library/os/linux/os-linux.c
@@ -0,0 +1,243 @@
+#include <paths.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include "../os.h"
+#include "../../base/logger.h"
+
+#include <mntent.h>
+#include <dirent.h>
+#include <sys/utsname.h>
+#ifdef _DEBUG
+#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 20
+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))) {
+ 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) &&
+ 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: %s %s %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;
+ }
+ }
+ }
+ }
+ 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 == NULL) {
+ 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)) != NULL) {
+ strcpy(cur_dir, "/dev/disk/by-uuid/");
+ strncat(cur_dir, dir->d_name, 200);
+ if (stat(cur_dir, &sym_stat) == 0) {
+ for (i = 0; i < currentDrive; i++) {
+ if (sym_stat.st_ino == statDrives[i]) {
+ parseUUID(dir->d_name, tmpDrives[i].disk_sn, sizeof(tmpDrives[i].disk_sn));
+#ifdef _DEBUG
+ 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
+ }
+ }
+ }
+ }
+ 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);
+ printf("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;
+}
+
+static void _getCpuid(unsigned int *p, unsigned int ax) {
+ __asm __volatile(
+ "movl %%ebx, %%esi\n\t"
+ "cpuid\n\t"
+ "xchgl %%ebx, %%esi"
+ : "=a"(p[0]), "=S"(p[1]), "=c"(p[2]), "=d"(p[3])
+ : "0"(ax));
+}
+
+FUNCTION_RETURN getCpuId(unsigned char identifier[6]) {
+ unsigned int i;
+ unsigned int cpuinfo[4] = {0, 0, 0, 0};
+ _getCpuid(cpuinfo, 0);
+ for (i = 0; i < 3; i++) {
+ identifier[i * 2] = cpuinfo[i] & 0xFF;
+ identifier[i * 2 + 1] = (cpuinfo[i] & 0xFF00) >> 8;
+ }
+ return FUNC_RET_OK;
+}
+
+
+
+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;
+}
--
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