diff options
| -rw-r--r-- | fs/cifs/cifspdu.h | 29 | ||||
| -rw-r--r-- | fs/cifs/cifsproto.h | 2 | ||||
| -rw-r--r-- | fs/cifs/cifssmb.c | 54 | ||||
| -rw-r--r-- | fs/cifs/smb1ops.c | 8 | ||||
| -rw-r--r-- | fs/cifs/smb2pdu.h | 5 |
5 files changed, 94 insertions, 4 deletions
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index f80f98f5ef9c..9e5ee34de986 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -1352,6 +1352,35 @@ typedef struct smb_com_transaction_ioctl_req { __u8 Data[1]; } __attribute__((packed)) TRANSACT_IOCTL_REQ; +typedef struct smb_com_transaction_compr_ioctl_req { + struct smb_hdr hdr; /* wct = 23 */ + __u8 MaxSetupCount; + __u16 Reserved; + __le32 TotalParameterCount; + __le32 TotalDataCount; + __le32 MaxParameterCount; + __le32 MaxDataCount; + __le32 ParameterCount; + __le32 ParameterOffset; + __le32 DataCount; + __le32 DataOffset; + __u8 SetupCount; /* four setup words follow subcommand */ + /* SNIA spec incorrectly included spurious pad here */ + __le16 SubCommand; /* 2 = IOCTL/FSCTL */ + __le32 FunctionCode; + __u16 Fid; + __u8 IsFsctl; /* 1 = File System Control 0 = device control (IOCTL) */ + __u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */ + __le16 ByteCount; + __u8 Pad[3]; + __le16 compression_state; /* See below for valid flags */ +} __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ; + +/* compression state flags */ +#define COMPRESSION_FORMAT_NONE 0x0000 +#define COMPRESSION_FORMAT_DEFAULT 0x0001 +#define COMPRESSION_FORMAT_LZNT1 0x0002 + typedef struct smb_com_transaction_ioctl_rsp { struct smb_hdr hdr; /* wct = 19 */ __u8 Reserved[3]; diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h index b5ec2a268f56..aa3397620342 100644 --- a/fs/cifs/cifsproto.h +++ b/fs/cifs/cifsproto.h @@ -360,6 +360,8 @@ extern int CIFSSMBUnixQuerySymLink(const unsigned int xid, extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon, __u16 fid, char **symlinkinfo, const struct nls_table *nls_codepage); +extern int CIFSSMB_set_compression(const unsigned int xid, + struct cifs_tcon *tcon, __u16 fid); extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon, const char *fileName, const int disposition, const int access_flags, const int omode, diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index ccd31ab815d4..93b29474714a 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -3199,6 +3199,60 @@ qreparse_out: return rc; } +int +CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon, + __u16 fid) +{ + int rc = 0; + int bytes_returned; + struct smb_com_transaction_compr_ioctl_req *pSMB; + struct smb_com_transaction_ioctl_rsp *pSMBr; + + cifs_dbg(FYI, "Set compression for %u\n", fid); + rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB, + (void **) &pSMBr); + if (rc) + return rc; + + pSMB->compression_state = cpu_to_le16(COMPRESSION_FORMAT_DEFAULT); + + pSMB->TotalParameterCount = 0; + pSMB->TotalDataCount = __constant_cpu_to_le32(2); + pSMB->MaxParameterCount = 0; + pSMB->MaxDataCount = 0; + pSMB->MaxSetupCount = 4; + pSMB->Reserved = 0; + pSMB->ParameterOffset = 0; + pSMB->DataCount = __constant_cpu_to_le32(2); + pSMB->DataOffset = + cpu_to_le32(offsetof(struct smb_com_transaction_compr_ioctl_req, + compression_state) - 4); /* 84 */ + pSMB->SetupCount = 4; + pSMB->SubCommand = __constant_cpu_to_le16(NT_TRANSACT_IOCTL); + pSMB->ParameterCount = 0; + pSMB->FunctionCode = __constant_cpu_to_le32(FSCTL_SET_COMPRESSION); + pSMB->IsFsctl = 1; /* FSCTL */ + pSMB->IsRootFlag = 0; + pSMB->Fid = fid; /* file handle always le */ + /* 3 byte pad, followed by 2 byte compress state */ + pSMB->ByteCount = __constant_cpu_to_le16(5); + inc_rfc1001_len(pSMB, 5); + + rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB, + (struct smb_hdr *) pSMBr, &bytes_returned, 0); + if (rc) + cifs_dbg(FYI, "Send error in SetCompression = %d\n", rc); + + cifs_buf_release(pSMB); + + /* + * Note: On -EAGAIN error only caller can retry on handle based calls + * since file handle passed in no longer valid. + */ + return rc; +} + + #ifdef CONFIG_CIFS_POSIX /*Convert an Access Control Entry from wire format to local POSIX xattr format*/ diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c index 09ef8f322c2a..384cffe42850 100644 --- a/fs/cifs/smb1ops.c +++ b/fs/cifs/smb1ops.c @@ -807,6 +807,13 @@ out: } static int +cifs_set_compression(const unsigned int xid, struct cifs_tcon *tcon, + struct cifsFileInfo *cfile) +{ + return CIFSSMB_set_compression(xid, tcon, cfile->fid.netfid); +} + +static int cifs_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon, const char *path, struct cifs_sb_info *cifs_sb, struct cifs_fid *fid, __u16 search_flags, @@ -956,6 +963,7 @@ struct smb_version_operations smb1_operations = { .set_path_size = CIFSSMBSetEOF, .set_file_size = CIFSSMBSetFileSize, .set_file_info = smb_set_file_info, + .set_compression = cifs_set_compression, .echo = CIFSSMBEcho, .mkdir = CIFSSMBMkDir, .mkdir_setinfo = cifs_mkdir_setinfo, diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h index 7e44f18cc169..6183b1b7550f 100644 --- a/fs/cifs/smb2pdu.h +++ b/fs/cifs/smb2pdu.h @@ -570,12 +570,9 @@ struct network_interface_info_ioctl_rsp { #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */ struct compress_ioctl { - __le16 CompressionState; + __le16 CompressionState; /* See cifspdu.h for possible flag values */ } __packed; -#define COMPRESSION_FORMAT_NONE 0x0000 -#define COMPRESSION_FORMAT_DEFAULT 0x0001 -#define COMPRESSION_FORMAT_LZNT1 0x0002 struct smb2_ioctl_req { struct smb2_hdr hdr; __le16 StructureSize; /* Must be 57 */ |