diff options
Diffstat (limited to 'src/fs/ntapi_tt_statfs.c')
| -rw-r--r-- | src/fs/ntapi_tt_statfs.c | 67 |
1 files changed, 22 insertions, 45 deletions
diff --git a/src/fs/ntapi_tt_statfs.c b/src/fs/ntapi_tt_statfs.c index 450d2bc..21785fd 100644 --- a/src/fs/ntapi_tt_statfs.c +++ b/src/fs/ntapi_tt_statfs.c @@ -12,15 +12,13 @@ int32_t __stdcall __ntapi_tt_statfs( __in void * hfile, - __in void * hroot __optional, - __in nt_unicode_string * path, __out nt_statfs * statfs, + __in uint32_t infolen, __out uintptr_t * buffer, __in uint32_t buffer_size, __in uint32_t flags) { int32_t status; - nt_oa oa; nt_iosb iosb; nt_unicode_string * sdev; wchar16_t * wch; @@ -33,39 +31,18 @@ int32_t __stdcall __ntapi_tt_statfs( nt_fsfsi * fsfsi; uint32_t * fsid; uint64_t * pguid; + uint32_t written; /* validation */ - if (!hfile && !path) - return NT_STATUS_INVALID_HANDLE; + if (infolen < sizeof(*statfs)) + return NT_STATUS_INFO_LENGTH_MISMATCH; - /* hfile */ - if (hfile) { - statfs->flags = 0; - } else { - /* oa */ - oa.len = sizeof(nt_oa); - oa.root_dir = hroot; - oa.obj_name = path; - oa.obj_attr = 0; - oa.sec_desc = 0; - oa.sec_qos = 0; - - /* open file/folder */ - if ((status = __ntapi->zw_open_file( - &hfile, - NT_SEC_SYNCHRONIZE - | NT_FILE_READ_ATTRIBUTES - | NT_FILE_READ_ACCESS, - &oa, - &iosb, - NT_FILE_SHARE_READ | NT_FILE_SHARE_WRITE, - NT_FILE_SYNCHRONOUS_IO_ALERT))) - return status; - - statfs->flags = NT_STATFS_NEW_HANDLE; - } + /* init */ + __ntapi->tt_aligned_block_memset( + statfs,0,sizeof(*statfs)); - statfs->hfile = hfile; + statfs->hfile = hfile; + statfs->dev_name_maxlen = infolen - sizeof(*statfs); /* maximum component length, file system type */ if ((status = __ntapi->zw_query_volume_information_file( @@ -81,8 +58,7 @@ int32_t __stdcall __ntapi_tt_statfs( statfs->f_namelen = fsai->maximum_component_name_length; statfs->nt_fstype_hash = __ntapi->tt_buffer_crc32( - 0, - &fsai->file_system_name, + 0,&fsai->file_system_name, fsai->file_system_name_length); /* max files per volume */ @@ -121,7 +97,7 @@ int32_t __stdcall __ntapi_tt_statfs( NT_FILE_FS_FULL_SIZE_INFORMATION))) return status; - fsfsi = (nt_fsfsi *)buffer; + fsfsi = (nt_fsfsi *)buffer; statfs->f_blocks = fsfsi->total_allocation_units.quad; statfs->f_bfree = fsfsi->actual_available_allocation_units.quad; statfs->f_bavail = fsfsi->caller_available_allocation_units.quad; @@ -134,14 +110,14 @@ int32_t __stdcall __ntapi_tt_statfs( NT_OBJECT_NAME_INFORMATION, buffer, buffer_size, - (uint32_t *)&iosb.info))) + &written))) return status; sdev = (nt_unicode_string *)buffer; wch = sdev->buffer; if (sdev->strlen < __DEVICE_PATH_PREFIX_LEN) - return NT_STATUS_INVALID_HANDLE; + return NT_STATUS_NOT_SUPPORTED; if ((wch[0] != '\\') || (wch[1] != 'D') @@ -151,7 +127,7 @@ int32_t __stdcall __ntapi_tt_statfs( || (wch[5] != 'c') || (wch[6] != 'e') || (wch[7] != '\\')) - return NT_STATUS_INVALID_HANDLE; + return NT_STATUS_NOT_SUPPORTED; if (sdev->strlen < __DEVICE_MUP_PREFIX_LEN) return NT_STATUS_INVALID_HANDLE; @@ -160,15 +136,16 @@ int32_t __stdcall __ntapi_tt_statfs( && (wch[9]=='u') && (wch[10]=='p') && (wch[11]=='\\')) { - flags &= ~NT_STATFS_VOLUME_GUID; + statfs->nt_drive_letter = 0; + hash = __DEVICE_MUP_PREFIX_HASH; + flags &= ~NT_STATFS_VOLUME_GUID; statfs->flags |= NT_STATFS_MUP_DEVICE; - hash = __DEVICE_MUP_PREFIX_HASH; wch_mark = &wch[12]; - statfs->nt_drive_letter = 0; + wch = wch_mark; - for (wch=wch_mark; *wch!='\\'; wch++) - (void)0; + for (; *wch!='\\'; ) + wch++; wch++; } else { wch_mark = &wch[8]; @@ -181,10 +158,10 @@ int32_t __stdcall __ntapi_tt_statfs( statfs->obj_name_strlen = sdev->strlen; statfs->obj_name_maxlen = statfs->dev_name_maxlen; - statfs->dev_name_strlen = (uint16_t)((wch - sdev->buffer) * sizeof(uint16_t)); + statfs->dev_name_strlen = sizeof(uint16_t) * (uint16_t)(wch - sdev->buffer); statfs->dev_name_hash = __ntapi->tt_buffer_crc32( hash,wch_mark, - sizeof(wchar16_t)*(wch-wch_mark)); + sizeof(wchar16_t) * (wch - wch_mark)); /* device name */ if (!(flags & NT_STATFS_DEV_NAME_COPY)) |