diff options
| -rw-r--r-- | fs/cifs/cifspdu.h | 3 | ||||
| -rw-r--r-- | fs/cifs/cifssmb.c | 10 |
2 files changed, 13 insertions, 0 deletions
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index 2498d644827c..0efdf35aab2c 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -220,6 +220,9 @@ */ #define CIFS_NO_HANDLE 0xFFFF +#define NO_CHANGE_64 0xFFFFFFFFFFFFFFFFULL +#define NO_CHANGE_32 0xFFFFFFFFUL + /* IPC$ in ASCII */ #define CIFS_IPC_RESOURCE "\x49\x50\x43\x24" diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 24364106b8f9..48fc0c2ab0e5 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -4803,6 +4803,16 @@ setPermsRetry: pSMB->InformationLevel = cpu_to_le16(SMB_SET_FILE_UNIX_BASIC); pSMB->Reserved4 = 0; pSMB->hdr.smb_buf_length += byte_count; + /* Samba server ignores set of file size to zero due to bugs in some + older clients, but we should be precise - we use SetFileSize to + set file size and do not want to truncate file size to zero + accidently as happened on one Samba server beta by putting + zero instead of -1 here */ + data_offset->EndOfFile = NO_CHANGE_64; + data_offset->NumOfBytes = NO_CHANGE_64; + data_offset->LastStatusChange = NO_CHANGE_64; + data_offset->LastAccessTime = NO_CHANGE_64; + data_offset->LastModificationTime = NO_CHANGE_64; data_offset->Uid = cpu_to_le64(uid); data_offset->Gid = cpu_to_le64(gid); /* better to leave device as zero when it is */ |