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fsptool: perm

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This commit is contained in:
Bill Zissimopoulos 2017-07-19 23:16:05 -07:00
parent 7745bf4cdc
commit 8e5c40bbbe
1 changed files with 111 additions and 21 deletions
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132
src/fsptool/fsptool.c
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@ -50,6 +50,36 @@ static void printlog(HANDLE h, const char *format, ...)
va_end(ap);
}
static unsigned wcstoint(const wchar_t *p, const wchar_t **endp, int base)
{
unsigned v;
int maxdig, maxalp;
maxdig = 10 < base ? '9' : (base - 1) + '0';
maxalp = 10 < base ? (base - 1 - 10) + 'a' : 0;
for (v = 0; *p; p++)
{
int c = *p;
if ('0' <= c && c <= maxdig)
v = base * v + (c - '0');
else
{
c |= 0x20;
if ('a' <= c && c <= maxalp)
v = base * v + (c - 'a') + 10;
else
break;
}
}
if (0 != endp)
*endp = (wchar_t *)p;
return v;
}
static void usage(void)
{
fatal(ERROR_INVALID_PARAMETER,
@ -60,7 +90,7 @@ static void usage(void)
//" list list running file system processes\n"
//" kill kill file system process\n"
" id [NAME|SID|UID] print user id\n"
" perm [SDDL|MODE] print Windows/POSIX permissions\n",
" perm [SDDL|UID:GID:MODE] print permissions\n",
PROGNAME);
}
@ -345,16 +375,9 @@ static NTSTATUS id_uid(PWSTR UidStr)
UINT32 Uid;
NTSTATUS Result;
Uid = 0;
for (PWSTR P = UidStr; *P; P++)
{
int C = *P;
if ('0' <= C && C <= '9')
Uid = 10 * Uid + (C - '0');
else
return STATUS_INVALID_PARAMETER;
}
Uid = wcstoint(UidStr, &UidStr, 10);
if (L'\0' != *UidStr)
return STATUS_INVALID_PARAMETER;
Result = FspPosixMapUidToSid(Uid, &Sid);
if (!NT_SUCCESS(Result))
@ -434,14 +457,85 @@ static int id(int argc, wchar_t **argv)
return FspWin32FromNtStatus(Result);
}
static int permtosd(int argc, wchar_t **argv)
static NTSTATUS perm_print_sd(PSECURITY_DESCRIPTOR SecurityDescriptor)
{
return 1;
UINT32 Uid, Gid, Mode;
PWSTR Sddl = 0;
NTSTATUS Result;
Result = FspPosixMapSecurityDescriptorToPermissions(SecurityDescriptor, &Uid, &Gid, &Mode);
if (!NT_SUCCESS(Result))
return Result;
if (!ConvertSecurityDescriptorToStringSecurityDescriptorW(
SecurityDescriptor, SDDL_REVISION_1,
OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
&Sddl, 0))
return FspNtStatusFromWin32(GetLastError());
info("%S (perm=%u:%u:%d%d%d%d)",
Sddl, Uid, Gid, (Mode >> 9) & 7, (Mode >> 6) & 7, (Mode >> 3) & 7, Mode & 7);
LocalFree(Sddl);
return STATUS_SUCCESS;
}
static int sdtoperm(int argc, wchar_t **argv)
static NTSTATUS perm_sddl(PWSTR Sddl)
{
return 1;
PSECURITY_DESCRIPTOR SecurityDescriptor = 0;
if (!ConvertStringSecurityDescriptorToSecurityDescriptorW(
Sddl, SDDL_REVISION_1, &SecurityDescriptor, 0))
return FspNtStatusFromWin32(GetLastError());
perm_print_sd(SecurityDescriptor);
LocalFree(SecurityDescriptor);
return STATUS_SUCCESS;
}
static NTSTATUS perm_mode(PWSTR PermStr)
{
PSECURITY_DESCRIPTOR SecurityDescriptor = 0;
UINT32 Uid, Gid, Mode;
NTSTATUS Result;
Uid = wcstoint(PermStr, &PermStr, 10);
if (L':' != *PermStr)
return STATUS_INVALID_PARAMETER;
Gid = wcstoint(PermStr + 1, &PermStr, 10);
if (L':' != *PermStr)
return STATUS_INVALID_PARAMETER;
Mode = wcstoint(PermStr + 1, &PermStr, 8);
if (L'\0' != *PermStr)
return STATUS_INVALID_PARAMETER;
Result = FspPosixMapPermissionsToSecurityDescriptor(Uid, Gid, Mode, &SecurityDescriptor);
if (!NT_SUCCESS(Result))
return Result;
perm_print_sd(SecurityDescriptor);
FspDeleteSecurityDescriptor(SecurityDescriptor,
FspPosixMapPermissionsToSecurityDescriptor);
return STATUS_SUCCESS;
}
static int perm(int argc, wchar_t **argv)
{
if (2 != argc)
usage();
NTSTATUS Result;
Result = perm_mode(argv[1]);
if (STATUS_INVALID_PARAMETER == Result)
Result = perm_sddl(argv[1]);
return FspWin32FromNtStatus(Result);
}
int wmain(int argc, wchar_t **argv)
@ -458,12 +552,8 @@ int wmain(int argc, wchar_t **argv)
if (0 == invariant_wcscmp(L"id", argv[0]))
return id(argc, argv);
else
if (0 == invariant_wcscmp(L"permtosd", argv[0]))
return permtosd(argc, argv);
else
if (0 == invariant_wcscmp(L"sdtoperm", argv[0]))
return sdtoperm(argc, argv);
if (0 == invariant_wcscmp(L"perm", argv[0]))
return perm(argc, argv);
else
usage();