core: rework how we flush incoming traffic when a socket unit goes down

[elogind.git] / src / basic / virt.c

diff --git a/src/basic/virt.c b/src/basic/virt.c
index ca4a051cfcceab0fcef9a9cc35ea8f2ca901e7a6..6eb1d0c46e41730f3f1015ed286c4313e2149a7b 100644 (file)
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 /***
   This file is part of systemd.
 
@@ -20,6 +18,8 @@
 ***/
 
 #include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
@@ -27,13 +27,14 @@
 #include "dirent-util.h"
 #include "fd-util.h"
 #include "fileio.h"
+#include "macro.h"
 #include "process-util.h"
 #include "stat-util.h"
 #include "string-table.h"
 #include "string-util.h"
-#include "util.h"
 #include "virt.h"
 
+#if 0 /// UNNEEDED by elogind
 static int detect_vm_cpuid(void) {
 
         /* CPUID is an x86 specific interface. */
@@ -269,13 +270,20 @@ int detect_vm(void) {
         if (cached_found >= 0)
                 return cached_found;
 
-        r = detect_vm_cpuid();
+        /* We have to use the correct order here:
+         * Some virtualization technologies do use KVM hypervisor but are
+         * expected to be detected as something else. So detect DMI first.
+         *
+         * An example is Virtualbox since version 5.0, which uses KVM backend.
+         * Detection via DMI works corretly, the CPU ID would find KVM
+         * only. */
+        r = detect_vm_dmi();
         if (r < 0)
                 return r;
         if (r != VIRTUALIZATION_NONE)
                 goto finish;
 
-        r = detect_vm_dmi();
+        r = detect_vm_cpuid();
         if (r < 0)
                 return r;
         if (r != VIRTUALIZATION_NONE)
@@ -320,6 +328,7 @@ finish:
         cached_found = r;
         return r;
 }
+#endif // 0
 
 int detect_container(void) {
 
@@ -409,8 +418,7 @@ finish:
         return r;
 }
 
-/// UNNEEDED by elogind
-#if 0
+#if 0 /// UNNEEDED by elogind
 int detect_virtualization(void) {
         int r;
 
@@ -432,6 +440,7 @@ int running_in_chroot(void) {
         return ret == 0;
 }
 
+#if 0 /// UNNEEDED by elogind
 static const char *const virtualization_table[_VIRTUALIZATION_MAX] = {
         [VIRTUALIZATION_NONE] = "none",
         [VIRTUALIZATION_KVM] = "kvm",
@@ -456,3 +465,4 @@ static const char *const virtualization_table[_VIRTUALIZATION_MAX] = {
 };
 
 DEFINE_STRING_TABLE_LOOKUP(virtualization, int);
+#endif // 0