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dll: posix: use the S-1-0-65534 <-> 65534 for the unmapped SID/UID

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This commit is contained in:
Bill Zissimopoulos 2016-06-28 11:45:35 -07:00
parent e33fda4d00
commit 0577b8febb
2 changed files with 9 additions and 6 deletions
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14
src/dll/posix.c
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@ -42,16 +42,16 @@ union
UINT8 B[sizeof(SID) - sizeof(DWORD) + (1 * sizeof(DWORD))]; UINT8 B[sizeof(SID) - sizeof(DWORD) + (1 * sizeof(DWORD))];
} FspUnmappedSidBuf = } FspUnmappedSidBuf =
{ {
/* S-1-5-7 (Anonymous) */ /* S-1-0-65534 */
.V.Revision = SID_REVISION, .V.Revision = SID_REVISION,
.V.SubAuthorityCount = 1, .V.SubAuthorityCount = 1,
.V.IdentifierAuthority.Value[5] = 5, .V.IdentifierAuthority.Value[5] = 0,
.V.SubAuthority[0] = 7, .V.SubAuthority[0] = 65534,
}; };
static PISID FspAccountDomainSid, FspPrimaryDomainSid; static PISID FspAccountDomainSid, FspPrimaryDomainSid;
#define FspUnmappedSid (&FspUnmappedSidBuf.V) #define FspUnmappedSid (&FspUnmappedSidBuf.V)
#define FspUnmappedUid (7) #define FspUnmappedUid (65534)
static BOOL WINAPI FspPosixInitialize( static BOOL WINAPI FspPosixInitialize(
PINIT_ONCE InitOnce, PVOID Parameter, PVOID *Context) PINIT_ONCE InitOnce, PVOID Parameter, PVOID *Context)
@ -223,7 +223,7 @@ FSP_API NTSTATUS FspPosixMapUidToSid(UINT32 Uid, PSID *PSid)
* Other well-known SIDs in the NT_AUTHORITY domain (S-1-5-X-RID): * Other well-known SIDs in the NT_AUTHORITY domain (S-1-5-X-RID):
* S-1-5-X-RID <=> uid/gid: 0x1000 * X + RID * S-1-5-X-RID <=> uid/gid: 0x1000 * X + RID
*/ */
else if (0x1000 <= Uid && Uid < 0x100000) else if (FspUnmappedUid != Uid && 0x1000 <= Uid && Uid < 0x100000)
*PSid = FspPosixCreateSid(5, 2, Uid >> 12, Uid & 0xfff); *PSid = FspPosixCreateSid(5, 2, Uid >> 12, Uid & 0xfff);
if (0 == *PSid) if (0 == *PSid)
@ -325,7 +325,9 @@ FSP_API NTSTATUS FspPosixMapSidToUid(PSID Sid, PUINT32 PUid)
*/ */
*PUid = 0x60000 + Rid; *PUid = 0x60000 + Rid;
} }
else else if (
FspUnmappedSid->IdentifierAuthority.Value[5] != Authority ||
FspUnmappedSid->SubAuthority[0] != Rid)
{ {
/* [IDMAP] /* [IDMAP]
* Other well-known SIDs: * Other well-known SIDs:

1
tst/winfsp-tests/posix-test.c
View File

@ -10,6 +10,7 @@ void posix_map_sid_test(void)
UINT32 Uid; UINT32 Uid;
} map[] = } map[] =
{ {
{ L"S-1-0-65534", 65534 },
{ L"S-1-0-0", 0x10000 }, { L"S-1-0-0", 0x10000 },
{ L"S-1-1-0", 0x10100 }, { L"S-1-1-0", 0x10100 },
{ L"S-1-2-0", 0x10200 }, { L"S-1-2-0", 0x10200 },