cloudinit tests pass :)

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

vendor/github.com/sigma/bdoor/check.go

@@ -0,0 +1,67 @@
+// Copyright 2016 Yann Hodique
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package bdoor
+
+// #include <limits.h>
+// #include <stdint.h>
+// #include <signal.h>
+// #include <setjmp.h>
+//
+// #define VMWARE_BDOOR_MAGIC 0x564D5868
+// #define VMWARE_BDOOR_PORT 0x5658
+// #define VMWARE_BDOOR_CMD_GETVERSION 10
+// #define VMWARE_BDOOR_RUN(cmd, eax, ebx, ecx, edx)        \
+//     __asm__("inl %%dx, %%eax" :                          \
+//             "=a"(eax), "=c"(ecx), "=d"(edx), "=b"(ebx) : \
+//             "0"(VMWARE_BDOOR_MAGIC),                     \
+//             "1"(VMWARE_BDOOR_CMD_##cmd),                 \
+//             "2"(VMWARE_BDOOR_PORT),                      \
+//             "3"(UINT_MAX) :                              \
+//             "memory");
+//
+// static sigjmp_buf env;
+//
+// void handler(int signal) {
+//     siglongjmp(env, 1);
+// }
+//
+// int hypervisor_bdoor_check(void) {
+//     uint32_t eax, ebx, ecx, edx;
+//     struct sigaction sa, save1, save2;
+//     int res = 0;
+//
+//     sa.sa_handler = handler;
+//     sigemptyset(&sa.sa_mask);
+//     sa.sa_flags = SA_RESTART;
+//     sigaction(SIGSEGV, &sa, &save1);
+//     sigaction(SIGILL, &sa, &save2);
+//
+//     if(sigsetjmp(env, 1)==0) {
+//         VMWARE_BDOOR_RUN(GETVERSION, eax, ebx, ecx, edx);
+//         if (ebx == VMWARE_BDOOR_MAGIC)
+//             res = 1;
+//     }
+//
+//     sa.sa_handler = SIG_DFL;
+//     sigaction(SIGSEGV, &save1, 0);
+//     sigaction(SIGILL, &save2, 0);
+//     return res;
+// }
+//
+import "C"
+
+func HypervisorPortCheck() bool {
+	return C.hypervisor_bdoor_check() != 0
+}