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Merge remote-tracking branch 'teor/bug28096-035-squashed' into maint-0.3.5

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This commit is contained in:
Nick Mathewson 2018-11-26 17:24:41 -05:00
commit feb41b7c30
2 changed files with 77 additions and 31 deletions
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13
changes/bug28096 Normal file
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@ -0,0 +1,13 @@
o Minor bugfixes (Windows):
- Correctly identify Windows 8.1, Windows 10, and Windows Server 2008
and later from their NT versions.
Fixes bug 28096; bugfix on 0.2.2.34; reported by Keifer Bly.
- On recent Windows versions, the GetVersionEx() function may report
an earlier Windows version than the running OS. To avoid user
confusion, add "[or later]" to Tor's version string on affected
versions of Windows.
Fixes bug 28096; bugfix on 0.2.2.34; reported by Keifer Bly.
- Remove Windows versions that were never supported by the
GetVersionEx() function. Stop duplicating the latest Windows
version in get_uname().
Fixes bug 28096; bugfix on 0.2.2.34; reported by Keifer Bly.

95
src/lib/osinfo/uname.c
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@ -46,22 +46,33 @@ get_uname,(void))
#ifdef _WIN32
OSVERSIONINFOEX info;
int i;
int is_client = 0;
int is_server = 0;
const char *plat = NULL;
static struct {
unsigned major; unsigned minor; const char *version;
unsigned major; unsigned minor;
const char *client_version; const char *server_version;
} win_version_table[] = {
{ 6, 2, "Windows 8" },
{ 6, 1, "Windows 7" },
{ 6, 0, "Windows Vista" },
{ 5, 2, "Windows Server 2003" },
{ 5, 1, "Windows XP" },
{ 5, 0, "Windows 2000" },
/* { 4, 0, "Windows NT 4.0" }, */
{ 4, 90, "Windows Me" },
{ 4, 10, "Windows 98" },
/* { 4, 0, "Windows 95" } */
{ 3, 51, "Windows NT 3.51" },
{ 0, 0, NULL }
/* This table must be sorted in descending order.
* Sources:
* https://en.wikipedia.org/wiki/List_of_Microsoft_Windows_versions
* https://docs.microsoft.com/en-us/windows/desktop/api/winnt/
* ns-winnt-_osversioninfoexa#remarks
*/
/* Windows Server 2019 is indistinguishable from Windows Server 2016
* using GetVersionEx().
{ 10, 0, NULL, "Windows Server 2019" }, */
{ 10, 0, "Windows 10", "Windows Server 2016" },
{ 6, 3, "Windows 8.1", "Windows Server 2012 R2" },
{ 6, 2, "Windows 8", "Windows Server 2012" },
{ 6, 1, "Windows 7", "Windows Server 2008 R2" },
{ 6, 0, "Windows Vista", "Windows Server 2008" },
{ 5, 2, "Windows XP Professional", "Windows Server 2003" },
/* Windows XP did not have a server version, but we need something here */
{ 5, 1, "Windows XP", "Windows XP Server" },
{ 5, 0, "Windows 2000 Professional", "Windows 2000 Server" },
/* Earlier versions are not supported by GetVersionEx(). */
{ 0, 0, NULL, NULL }
};
memset(&info, 0, sizeof(info));
info.dwOSVersionInfoSize = sizeof(info);
@ -71,25 +82,34 @@ get_uname,(void))
uname_result_is_set = 1;
return uname_result;
}
if (info.dwMajorVersion == 4 && info.dwMinorVersion == 0) {
if (info.dwPlatformId == VER_PLATFORM_WIN32_NT)
plat = "Windows NT 4.0";
else
plat = "Windows 95";
#ifdef VER_NT_SERVER
if (info.wProductType == VER_NT_SERVER ||
info.wProductType == VER_NT_DOMAIN_CONTROLLER) {
is_server = 1;
} else {
for (i=0; win_version_table[i].major>0; ++i) {
if (win_version_table[i].major == info.dwMajorVersion &&
win_version_table[i].minor == info.dwMinorVersion) {
plat = win_version_table[i].version;
break;
is_client = 1;
}
#endif /* defined(VER_NT_SERVER) */
/* Search the version table for a matching version */
for (i=0; win_version_table[i].major>0; ++i) {
if (win_version_table[i].major == info.dwMajorVersion &&
win_version_table[i].minor == info.dwMinorVersion) {
if (is_server) {
plat = win_version_table[i].server_version;
} else {
/* Use client versions for clients, and when we don't know if it
* is a client or a server. */
plat = win_version_table[i].client_version;
}
break;
}
}
if (plat) {
strlcpy(uname_result, plat, sizeof(uname_result));
} else {
if (info.dwMajorVersion > 6 ||
(info.dwMajorVersion==6 && info.dwMinorVersion>2))
if (info.dwMajorVersion > win_version_table[0].major ||
(info.dwMajorVersion == win_version_table[0].major &&
info.dwMinorVersion > win_version_table[0].minor))
tor_snprintf(uname_result, sizeof(uname_result),
"Very recent version of Windows [major=%d,minor=%d]",
(int)info.dwMajorVersion,(int)info.dwMinorVersion);
@ -98,12 +118,25 @@ get_uname,(void))
"Unrecognized version of Windows [major=%d,minor=%d]",
(int)info.dwMajorVersion,(int)info.dwMinorVersion);
}
#ifdef VER_NT_SERVER
if (info.wProductType == VER_NT_SERVER ||
info.wProductType == VER_NT_DOMAIN_CONTROLLER) {
strlcat(uname_result, " [server]", sizeof(uname_result));
}
#endif /* defined(VER_NT_SERVER) */
/* Now append extra information to the name.
*
* Microsoft's API documentation says that on Windows 8.1 and later,
* GetVersionEx returns Windows 8 (6.2) for applications without an
* app compatibility manifest (including tor's default build).
*
* But in our testing, we have seen the actual Windows version on
* Windows Server 2012 R2, even without a manifest. */
if (info.dwMajorVersion > 6 ||
(info.dwMajorVersion == 6 && info.dwMinorVersion >= 2)) {
/* When GetVersionEx() returns Windows 8, the actual OS may be any
* later version. */
strlcat(uname_result, " [or later]", sizeof(uname_result));
}
/* When we don't know if the OS is a client or server version, we use
* the client version, and this qualifier. */
if (!is_server && !is_client) {
strlcat(uname_result, " [client or server]", sizeof(uname_result));
}
#else /* !(defined(_WIN32)) */
/* LCOV_EXCL_START -- can't provoke uname failure */
strlcpy(uname_result, "Unknown platform", sizeof(uname_result));