ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-11-06 19:08:56 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: добавление опции сборки MDBX_ENABLE_NON_READONLY_EXPORT и логирование соответствующих ситуаций (backport).

Browse Source 
Закрывает [запрос](https://gitflic.ru/project/erthink/libmdbx/issue/16).
This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2025-03-20 13:55:07 +03:00
parent 8157d07b00
commit 35349cf538
5 changed files with 46 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
src/osal.c
View File

@@ -1760,7 +1760,7 @@ static int osal_check_fs_local(mdbx_filehandle_t handle, int flags) {
if ((RemoteProtocolInfo.Flags & REMOTE_PROTOCOL_INFO_FLAG_OFFLINE) && !(flags & MDBX_RDONLY))
return ERROR_FILE_OFFLINE;
if (!(RemoteProtocolInfo.Flags & REMOTE_PROTOCOL_INFO_FLAG_LOOPBACK) && !(flags & MDBX_EXCLUSIVE))
return ERROR_REMOTE_STORAGE_MEDIA_ERROR;
return MDBX_EREMOTE;
}
}
@@ -1779,7 +1779,7 @@ static int osal_check_fs_local(mdbx_filehandle_t handle, int flags) {
0, &GetExternalBacking_OutputBuffer, sizeof(GetExternalBacking_OutputBuffer));
if (NT_SUCCESS(rc)) {
if (!(flags & MDBX_EXCLUSIVE))
return ERROR_REMOTE_STORAGE_MEDIA_ERROR;
return MDBX_EREMOTE;
} else if (rc != STATUS_OBJECT_NOT_EXTERNALLY_BACKED && rc != STATUS_INVALID_DEVICE_REQUEST &&
rc != STATUS_NOT_SUPPORTED)
return ntstatus2errcode(rc);
@@ -1800,7 +1800,7 @@ static int osal_check_fs_local(mdbx_filehandle_t handle, int flags) {
if ((flags & MDBX_RDONLY) == 0) {
if (FileSystemFlags & (FILE_SEQUENTIAL_WRITE_ONCE | FILE_READ_ONLY_VOLUME | FILE_VOLUME_IS_COMPRESSED)) {
rc = ERROR_REMOTE_STORAGE_MEDIA_ERROR;
rc = MDBX_EREMOTE;
goto bailout;
}
}
@@ -1808,7 +1808,7 @@ static int osal_check_fs_local(mdbx_filehandle_t handle, int flags) {
if (imports.GetFinalPathNameByHandleW(handle, PathBuffer, INT16_MAX, FILE_NAME_NORMALIZED | VOLUME_NAME_NT)) {
if (_wcsnicmp(PathBuffer, L"\\Device\\Mup\\", 12) == 0) {
if (!(flags & MDBX_EXCLUSIVE)) {
rc = ERROR_REMOTE_STORAGE_MEDIA_ERROR;
rc = MDBX_EREMOTE;
goto bailout;
}
}
@@ -1836,7 +1836,7 @@ static int osal_check_fs_local(mdbx_filehandle_t handle, int flags) {
case DRIVE_REMOTE:
default:
if (!(flags & MDBX_EXCLUSIVE))
rc = ERROR_REMOTE_STORAGE_MEDIA_ERROR;
rc = MDBX_EREMOTE;
// fall through
case DRIVE_REMOVABLE:
case DRIVE_FIXED:
@@ -1968,11 +1968,11 @@ static int osal_check_fs_local(mdbx_filehandle_t handle, int flags) {
#endif /* ST/MNT_LOCAL */
#ifdef ST_EXPORTED
if ((st_flags & ST_EXPORTED) != 0 && !(flags & MDBX_RDONLY))
return MDBX_EREMOTE;
if ((st_flags & ST_EXPORTED) != 0 && !(flags & (MDBX_RDONLY | MDBX_EXCLUSIVE))))
return MDBX_RESULT_TRUE;
#elif defined(MNT_EXPORTED)
if ((mnt_flags & MNT_EXPORTED) != 0 && !(flags & MDBX_RDONLY))
return MDBX_EREMOTE;
if ((mnt_flags & MNT_EXPORTED) != 0 && !(flags & (MDBX_RDONLY | MDBX_EXCLUSIVE)))
return MDBX_RESULT_TRUE;
#endif /* ST/MNT_EXPORTED */
switch (type) {
@@ -2023,8 +2023,8 @@ static int check_mmap_limit(const size_t limit) {
return MDBX_SUCCESS;
}
MDBX_INTERNAL int osal_mmap(const int flags, osal_mmap_t *map, size_t size, const size_t limit,
const unsigned options) {
MDBX_INTERNAL int osal_mmap(const int flags, osal_mmap_t *map, size_t size, const size_t limit, const unsigned options,
const pathchar_t *pathname4logging) {
assert(size <= limit);
map->limit = 0;
map->current = 0;
@@ -2035,8 +2035,27 @@ MDBX_INTERNAL int osal_mmap(const int flags, osal_mmap_t *map, size_t size, cons
#endif /* Windows */
int err = osal_check_fs_local(map->fd, flags);
if (unlikely(err != MDBX_SUCCESS))
return err;
if (unlikely(err != MDBX_SUCCESS)) {
#if defined(_WIN32) || defined(_WIN64)
if (globals.running_under_Wine)
NOTICE("%s", "Please use native Linux application or WSL at least, instead of trouble-full Wine!");
#endif /* Windows */
switch (err) {
case MDBX_RESULT_TRUE:
#if MDBX_ENABLE_NON_READONLY_EXPORT
WARNING("%" MDBX_PRIsPATH " is exported via NFS, avoid using the file on a remote side!", pathname4logging);
break;
#else
ERROR("%" MDBX_PRIsPATH " is exported via NFS", pathname4logging);
return MDBX_EREMOTE;
#endif /* MDBX_PROHIBIT_NON_READONLY_EXPORT */
case MDBX_EREMOTE:
ERROR("%" MDBX_PRIsPATH " is on a remote file system, the %s is required", pathname4logging, "MDBX_EXCLUSIVE");
__fallthrough /* fall through */;
default:
return err;
}
}
err = check_mmap_limit(limit);
if (unlikely(err != MDBX_SUCCESS))