| Message ID | 20190411022017.24942-2-lsahlber@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | cifs: Add support for FSCTL passthrough that write data to the server | expand |
tentatively merged into cifs-2.6.git for-next On Wed, Apr 10, 2019 at 9:20 PM Ronnie Sahlberg <lsahlber@redhat.com> wrote: > > Add support to pass a blob to the server in FSCTL passthrough. > > Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> > --- > fs/cifs/smb2ops.c | 17 +++++++++++++++-- > fs/cifs/smbfsctl.h | 27 +++++++++++++++++++++++++++ > 2 files changed, 42 insertions(+), 2 deletions(-) > > diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c > index 83a100dd2497..bb7522b882ea 100644 > --- a/fs/cifs/smb2ops.c > +++ b/fs/cifs/smb2ops.c > @@ -1382,6 +1382,18 @@ smb2_ioctl_query_info(const unsigned int xid, > oparms.fid = &fid; > oparms.reconnect = false; > > + /* > + * FSCTL codes encode the special access they need in the fsctl code. > + */ > + if (qi.flags & PASSTHRU_FSCTL) { > + switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { > + case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: > + oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; > + ; > + break; > + } > + } > + > rc = SMB2_open_init(tcon, &rqst[0], &oplock, &oparms, path); > if (rc) > goto iqinf_exit; > @@ -1399,8 +1411,9 @@ smb2_ioctl_query_info(const unsigned int xid, > > rc = SMB2_ioctl_init(tcon, &rqst[1], > COMPOUND_FID, COMPOUND_FID, > - qi.info_type, true, NULL, > - 0, CIFSMaxBufSize); > + qi.info_type, true, buffer, > + qi.output_buffer_length, > + CIFSMaxBufSize); > } > } else if (qi.flags == PASSTHRU_QUERY_INFO) { > memset(&qi_iov, 0, sizeof(qi_iov)); > diff --git a/fs/cifs/smbfsctl.h b/fs/cifs/smbfsctl.h > index f996daeea271..9b3459b9a5ce 100644 > --- a/fs/cifs/smbfsctl.h > +++ b/fs/cifs/smbfsctl.h > @@ -35,6 +35,33 @@ > * below). Additional detail on less common ones can be found in MS-FSCC > * section 2.3. > */ > + > +/* > + * FSCTL values are 32 bits and are constructed as > + * <device 16bits> <access 2bits> <function 12bits> <method 2bits> > + */ > +/* Device */ > +#define FSCTL_DEVICE_DFS (0x0006 << 16) > +#define FSCTL_DEVICE_FILE_SYSTEM (0x0009 << 16) > +#define FSCTL_DEVICE_NAMED_PIPE (0x0011 << 16) > +#define FSCTL_DEVICE_NETWORK_FILE_SYSTEM (0x0014 << 16) > +#define FSCTL_DEVICE_MASK 0xffff0000 > +/* Access */ > +#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS (0x03 << 14) > +#define FSCTL_DEVICE_ACCESS_MASK 0x0000c000 > +/* Function */ > +#define FSCTL_DEVICE_FUNCTION_MASK 0x00003ffc > +/* Method */ > +#define FSCTL_DEVICE_METHOD_BUFFERED 0x00 > +#define FSCTL_DEVICE_METHOD_IN_DIRECT 0x01 > +#define FSCTL_DEVICE_METHOD_OUT_DIRECT 0x02 > +#define FSCTL_DEVICE_METHOD_NEITHER 0x03 > +#define FSCTL_DEVICE_METHOD_MASK 0x00000003 > + > + > #define FSCTL_DFS_GET_REFERRALS 0x00060194 > #define FSCTL_DFS_GET_REFERRALS_EX 0x000601B0 > #define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000 > -- > 2.13.6 >
ср, 10 апр. 2019 г. в 19:21, Ronnie Sahlberg <lsahlber@redhat.com>: > > Add support to pass a blob to the server in FSCTL passthrough. > > Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> > --- > fs/cifs/smb2ops.c | 17 +++++++++++++++-- > fs/cifs/smbfsctl.h | 27 +++++++++++++++++++++++++++ > 2 files changed, 42 insertions(+), 2 deletions(-) > > diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c > index 83a100dd2497..bb7522b882ea 100644 > --- a/fs/cifs/smb2ops.c > +++ b/fs/cifs/smb2ops.c > @@ -1382,6 +1382,18 @@ smb2_ioctl_query_info(const unsigned int xid, > oparms.fid = &fid; > oparms.reconnect = false; > > + /* > + * FSCTL codes encode the special access they need in the fsctl code. > + */ > + if (qi.flags & PASSTHRU_FSCTL) { > + switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { > + case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: > + oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; > + ; This extra ":" looks unnecessary. Don't we need to add cases for +#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14) +#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14) +#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14) ? -- Best regards, Pavel Shilovsky
How about this small followon patch to address this? On Thu, Apr 11, 2019 at 12:49 PM Pavel Shilovsky <piastryyy@gmail.com> wrote: > > ср, 10 апр. 2019 г. в 19:21, Ronnie Sahlberg <lsahlber@redhat.com>: > > > > Add support to pass a blob to the server in FSCTL passthrough. > > > > Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> > > --- > > fs/cifs/smb2ops.c | 17 +++++++++++++++-- > > fs/cifs/smbfsctl.h | 27 +++++++++++++++++++++++++++ > > 2 files changed, 42 insertions(+), 2 deletions(-) > > > > diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c > > index 83a100dd2497..bb7522b882ea 100644 > > --- a/fs/cifs/smb2ops.c > > +++ b/fs/cifs/smb2ops.c > > @@ -1382,6 +1382,18 @@ smb2_ioctl_query_info(const unsigned int xid, > > oparms.fid = &fid; > > oparms.reconnect = false; > > > > + /* > > + * FSCTL codes encode the special access they need in the fsctl code. > > + */ > > + if (qi.flags & PASSTHRU_FSCTL) { > > + switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { > > + case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: > > + oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; > > + ; > > This extra ":" looks unnecessary. Don't we need to add cases for > +#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14) > ? > > -- > Best regards, > Pavel Shilovsky
On Fri, Apr 12, 2019 at 3:49 AM Pavel Shilovsky <piastryyy@gmail.com> wrote: > > ср, 10 апр. 2019 г. в 19:21, Ronnie Sahlberg <lsahlber@redhat.com>: > > > > Add support to pass a blob to the server in FSCTL passthrough. > > > > Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> > > --- > > fs/cifs/smb2ops.c | 17 +++++++++++++++-- > > fs/cifs/smbfsctl.h | 27 +++++++++++++++++++++++++++ > > 2 files changed, 42 insertions(+), 2 deletions(-) > > > > diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c > > index 83a100dd2497..bb7522b882ea 100644 > > --- a/fs/cifs/smb2ops.c > > +++ b/fs/cifs/smb2ops.c > > @@ -1382,6 +1382,18 @@ smb2_ioctl_query_info(const unsigned int xid, > > oparms.fid = &fid; > > oparms.reconnect = false; > > > > + /* > > + * FSCTL codes encode the special access they need in the fsctl code. > > + */ > > + if (qi.flags & PASSTHRU_FSCTL) { > > + switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { > > + case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: > > + oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; > > + ; > > This extra ":" looks unnecessary. Don't we need to add cases for > +#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14) > +#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14) > ? Thanks, yeah that ';' should go. We should add cases for the other three DEVICE_ACCESS cases but i don't know yet how these are mapped on windows. READ_WRITE was based on what win16 used as desired_access for this. We can add the others later when we start adding other fsctl types when we compare to what windows uses. > > -- > Best regards, > Pavel Shilovsky
On Fri, Apr 12, 2019 at 4:57 AM Steve French <smfrench@gmail.com> wrote: > > How about this small followon patch to address this? Looks reasonable. Reviewed-by me > > > On Thu, Apr 11, 2019 at 12:49 PM Pavel Shilovsky <piastryyy@gmail.com> wrote: > > > > ср, 10 апр. 2019 г. в 19:21, Ronnie Sahlberg <lsahlber@redhat.com>: > > > > > > Add support to pass a blob to the server in FSCTL passthrough. > > > > > > Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> > > > --- > > > fs/cifs/smb2ops.c | 17 +++++++++++++++-- > > > fs/cifs/smbfsctl.h | 27 +++++++++++++++++++++++++++ > > > 2 files changed, 42 insertions(+), 2 deletions(-) > > > > > > diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c > > > index 83a100dd2497..bb7522b882ea 100644 > > > --- a/fs/cifs/smb2ops.c > > > +++ b/fs/cifs/smb2ops.c > > > @@ -1382,6 +1382,18 @@ smb2_ioctl_query_info(const unsigned int xid, > > > oparms.fid = &fid; > > > oparms.reconnect = false; > > > > > > + /* > > > + * FSCTL codes encode the special access they need in the fsctl code. > > > + */ > > > + if (qi.flags & PASSTHRU_FSCTL) { > > > + switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { > > > + case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: > > > + oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; > > > + ; > > > > This extra ":" looks unnecessary. Don't we need to add cases for > > +#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14) > > +#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14) > > +#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14) > > ? > > > > -- > > Best regards, > > Pavel Shilovsky > > > > -- > Thanks, > > Steve
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 83a100dd2497..bb7522b882ea 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -1382,6 +1382,18 @@ smb2_ioctl_query_info(const unsigned int xid, oparms.fid = &fid; oparms.reconnect = false; + /* + * FSCTL codes encode the special access they need in the fsctl code. + */ + if (qi.flags & PASSTHRU_FSCTL) { + switch (qi.info_type & FSCTL_DEVICE_ACCESS_MASK) { + case FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS: + oparms.desired_access = FILE_READ_DATA | FILE_WRITE_DATA | FILE_READ_ATTRIBUTES | SYNCHRONIZE; + ; + break; + } + } + rc = SMB2_open_init(tcon, &rqst[0], &oplock, &oparms, path); if (rc) goto iqinf_exit; @@ -1399,8 +1411,9 @@ smb2_ioctl_query_info(const unsigned int xid, rc = SMB2_ioctl_init(tcon, &rqst[1], COMPOUND_FID, COMPOUND_FID, - qi.info_type, true, NULL, - 0, CIFSMaxBufSize); + qi.info_type, true, buffer, + qi.output_buffer_length, + CIFSMaxBufSize); } } else if (qi.flags == PASSTHRU_QUERY_INFO) { memset(&qi_iov, 0, sizeof(qi_iov)); diff --git a/fs/cifs/smbfsctl.h b/fs/cifs/smbfsctl.h index f996daeea271..9b3459b9a5ce 100644 --- a/fs/cifs/smbfsctl.h +++ b/fs/cifs/smbfsctl.h @@ -35,6 +35,33 @@ * below). Additional detail on less common ones can be found in MS-FSCC * section 2.3. */ + +/* + * FSCTL values are 32 bits and are constructed as + * <device 16bits> <access 2bits> <function 12bits> <method 2bits> + */ +/* Device */ +#define FSCTL_DEVICE_DFS (0x0006 << 16) +#define FSCTL_DEVICE_FILE_SYSTEM (0x0009 << 16) +#define FSCTL_DEVICE_NAMED_PIPE (0x0011 << 16) +#define FSCTL_DEVICE_NETWORK_FILE_SYSTEM (0x0014 << 16) +#define FSCTL_DEVICE_MASK 0xffff0000 +/* Access */ +#define FSCTL_DEVICE_ACCESS_FILE_ANY_ACCESS (0x00 << 14) +#define FSCTL_DEVICE_ACCESS_FILE_READ_ACCESS (0x01 << 14) +#define FSCTL_DEVICE_ACCESS_FILE_WRITE_ACCESS (0x02 << 14) +#define FSCTL_DEVICE_ACCESS_FILE_READ_WRITE_ACCESS (0x03 << 14) +#define FSCTL_DEVICE_ACCESS_MASK 0x0000c000 +/* Function */ +#define FSCTL_DEVICE_FUNCTION_MASK 0x00003ffc +/* Method */ +#define FSCTL_DEVICE_METHOD_BUFFERED 0x00 +#define FSCTL_DEVICE_METHOD_IN_DIRECT 0x01 +#define FSCTL_DEVICE_METHOD_OUT_DIRECT 0x02 +#define FSCTL_DEVICE_METHOD_NEITHER 0x03 +#define FSCTL_DEVICE_METHOD_MASK 0x00000003 + + #define FSCTL_DFS_GET_REFERRALS 0x00060194 #define FSCTL_DFS_GET_REFERRALS_EX 0x000601B0 #define FSCTL_REQUEST_OPLOCK_LEVEL_1 0x00090000
Add support to pass a blob to the server in FSCTL passthrough. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> --- fs/cifs/smb2ops.c | 17 +++++++++++++++-- fs/cifs/smbfsctl.h | 27 +++++++++++++++++++++++++++ 2 files changed, 42 insertions(+), 2 deletions(-)