From 36ce07093b68b07513149577c209ae7a57ab356b Mon Sep 17 00:00:00 2001
From: Gabriele Contini <contini.mailing@gmail.com>
Date: 周日, 15 3月 2020 16:26:21 +0800
Subject: [PATCH] Merge branch 'feature/pc_identifiers' into develop issues #2 #3 #14 #49
---
src/library/os/linux/execution_environment.cpp | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 115 insertions(+), 0 deletions(-)
diff --git a/src/library/os/linux/execution_environment.cpp b/src/library/os/linux/execution_environment.cpp
new file mode 100644
index 0000000..1f14d62
--- /dev/null
+++ b/src/library/os/linux/execution_environment.cpp
@@ -0,0 +1,115 @@
+/*
+ * virtualization.cpp
+ *
+ * Created on: Dec 15, 2019
+ * Author: GC
+ */
+#include <paths.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fstream>
+#include <iostream>
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/utsname.h>
+
+#include "../../base/base.h"
+#include "../cpu_info.hpp"
+#include "../execution_environment.hpp"
+#include "../../base/file_utils.hpp"
+#include "../../base/StringUtils.h"
+
+namespace license {
+namespace os {
+using namespace std;
+
+// 0=NO 1=Docker/2=Lxc
+static int checkContainerProc() {
+ // in docer /proc/self/cgroups contains the "docker" or "lxc" string
+ // https://stackoverflow.com/questions/23513045/how-to-check-if-a-process-is-running-inside-docker-container
+ 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, "/cgroup");
+
+ FILE *fp;
+ char *line = NULL;
+ size_t len = 0;
+ ssize_t read;
+ int result = 0;
+
+ fp = fopen(proc_path, "r");
+ if (fp == NULL) {
+ return 0;
+ }
+
+ while ((read = getline(&line, &len, fp)) != -1 && result == 0) {
+ // line[len]=0;
+ // printf("Retrieved line of length %zu:\n", read);
+ // printf("%s", line);
+ if (strstr(line, "docker") != NULL) {
+ result = 1;
+ }
+ if (strstr(line, "lxc") != NULL) {
+ result = 2;
+ }
+ }
+
+ fclose(fp);
+ if (line) free(line);
+ return result;
+}
+
+// 0=NO 1=Docker/2=Lxc
+static int checkSystemdContainer() {
+ ifstream systemd_container("/var/run/systemd/container");
+ int result = 0;
+ if (systemd_container.good()) {
+ result = 1;
+ for (string line; getline(systemd_container, line);) {
+ if (line.find("docker") != string::npos) {
+ result = 1;
+ break;
+ } else if (line.find("lxc") != string::npos) {
+ result = 2;
+ break;
+ }
+ }
+ }
+ return result;
+}
+
+ExecutionEnvironment::ExecutionEnvironment() {
+ try {
+ m_bios_vendor = toupper_copy(trim_copy(get_file_contents("/sys/class/dmi/id/sys_vendor", 256)));
+
+ } catch (...) {
+ }
+ try {
+ m_bios_description = toupper_copy(trim_copy(get_file_contents("/sys/class/dmi/id/modalias", 256)));
+ char last_char = m_bios_description[m_bios_description.length() - 1];
+ if (last_char == '\r' || last_char == '\n') {
+ m_bios_description = m_bios_description.erase(m_bios_description.length() - 1);
+ }
+ } catch (...) {
+ }
+ try {
+ m_sys_vendor = get_file_contents("/sys/class/dmi/id/sys_vendor", 256);
+ char last_char = m_sys_vendor[m_sys_vendor.length() - 2];
+ if (last_char == '\r' || last_char == '\n') {
+ m_sys_vendor = m_sys_vendor.erase(m_sys_vendor.length() - 1);
+ }
+ } catch (...) {
+ }
+}
+
+bool ExecutionEnvironment::is_container() const { return (checkContainerProc() != 0 || checkSystemdContainer() != 0); }
+
+bool ExecutionEnvironment::is_docker() const { return (checkContainerProc() == 1 || checkSystemdContainer() == 1); }
+
+} // namespace os
+} // namespace license
--
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