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path: root/fs/cifs/cifsproto.h
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2012-09-24CIFS: Enable signing in SMB2Pavel Shilovsky1-0/+1
Use hmac-sha256 and rather than hmac-md5 that is used for CIFS/SMB. Signature field in SMB2 header is 16 bytes instead of 8 bytes. Automatically enable signing by client when requested by the server when signing ability is available to the client. Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Sachin Prabhu <sprabhu@redhat.com> Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move writepage to ops structPavel Shilovsky1-2/+1
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Add SMB2 support for cifs_iovec_writePavel Shilovsky1-18/+0
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24CIFS: Add SMB2 support for cifs_iovec_readPavel Shilovsky1-19/+1
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move guery file info code to ops structPavel Shilovsky1-2/+0
and make cifs_get_file_info(_unix) calls static. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move open code to ops structPavel Shilovsky1-3/+4
Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move unlink code to ops structPavel Shilovsky1-3/+6
Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-27CIFS: Move rmdir code to ops structPavel Shilovsky1-2/+1
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-27CIFS: Separate protocol specific part from mkdirPavel Shilovsky1-3/+1
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-27CIFS: Simplify cifs_mkdir callPavel Shilovsky1-2/+2
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Setup async request in ops structPavel Shilovsky1-0/+2
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move building path to root to ops structPavel Shilovsky1-3/+0
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move query inode info code to ops structPavel Shilovsky1-8/+6
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move is_path_accessible to ops structPavel Shilovsky1-7/+5
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move getting dfs referalls to ops structPavel Shilovsky1-8/+7
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Process reconnects for SMB2 sharesPavel Shilovsky1-0/+1
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Add SMB2 credits supportPavel Shilovsky1-0/+1
For SMB2 protocol we can add more than one credit for one received request: it depends on CreditRequest field in SMB2 response header. Also we divide all requests by type: echoes, oplocks and others. Each type uses its own slot pull. Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Make transport routines work with SMB2Pavel Shilovsky1-0/+1
Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Rename Get/FreeXid and make them work with unsigned intPavel Shilovsky1-83/+88
Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move protocol specific tcon/tdis code to ops structPavel Shilovsky1-4/+4
and rename variables around the code changes. Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move protocol specific session setup/logoff code to ops structPavel Shilovsky1-5/+5
Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Move protocol specific negotiate code to ops structPavel Shilovsky1-3/+3
Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-24CIFS: Extend credit mechanism to process request typePavel Shilovsky1-2/+2
Split all requests to echos, oplocks and others - each group uses its own credit slot. This is indicated by new flags CIFS_ECHO_OP and CIFS_OBREAK_OP that are not used now for CIFS. This change is required to support SMB2 protocol because of different processing of these commands. Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-23cifs: rename cifs_sign_smb2 to cifs_sign_smbvJeff Layton1-1/+1
"smb2" makes me think of the SMB2.x protocol, which isn't at all what this function is for... Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-07-23cifs: move file_lock off stack in cifs_push_posix_locksJeff Layton1-2/+3
struct file_lock is pretty large, so we really don't want that on the stack in a potentially long call chain. Reorganize the arguments to CIFSSMBPosixLock to eliminate the need for that. Eliminate the get_flag and simply use a non-NULL pLockInfo to indicate that this is a "get" operation. In order to do that, need to add a new loff_t argument for the start_offset. Reported-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-06-01CIFS: Move get_next_mid to ops structPavel Shilovsky1-1/+0
Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-05-23CIFS: Move add/set_credits and get_credits_field to ops structurePavel Shilovsky1-3/+0
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-05-23CIFS: Move protocol specific part from SendReceive2 to ops structPavel Shilovsky1-0/+2
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-05-17cifs: Include backup intent search flags during searches {try #2)Shirish Pargaonkar1-2/+4
As observed and suggested by Tushar Gosavi... --------- readdir calls these function to send TRANS2_FIND_FIRST and TRANS2_FIND_NEXT command to the server. The current cifs module is not specifying CIFS_SEARCH_BACKUP_SEARCH flag while sending these command when backupuid/backupgid is specified. This can be resolved by specifying CIFS_SEARCH_BACKUP_SEARCH flag. --------- Cc: <stable@kernel.org> Reported-and-Tested-by: Tushar Gosavi <tugosavi@in.ibm.com> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-05-16cifs: convert cifs_iovec_read to use async readsJeff Layton1-0/+2
Convert cifs_iovec_read to use async I/O. This also raises the limit on the rsize for uncached reads. We first allocate a set of pages to hold the replies, then issue the reads in parallel and then collect the replies and copy the results into the iovec. A possible future optimization would be to kmap and inline the iovec buffers and read the data directly from the socket into that. That would require some rather complex conversion of the iovec into a kvec however. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-05-16cifs: add refcounting to cifs_readdata structuresJeff Layton1-0/+2
This isn't strictly necessary for the async readpages code, but the uncached version will need to be able to collect the replies after issuing the calls. Add a kref to cifs_readdata and use change the code to take and put references appropriately. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-05-16cifs: abstract out function to marshal the iovec for readv receivesJeff Layton1-0/+2
Cached and uncached reads will need to do different things here to handle the difference when the pages are in pagecache and not. Abstract out the function that marshals the page list into a kvec array. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-05-16cifs: make cifs_readdata_alloc take a work_func_t argJeff Layton1-2/+0
We'll need different completion routines for an uncached read. Allow the caller to set the one he needs at allocation time. Also, move most of these functions to file.c so we can make more of them static. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-03-23cifs: convert cifs_iovec_write to use async writesJeff Layton1-0/+2
Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23cifs: abstract out function to marshal up the iovec array for async writesJeff Layton1-0/+2
We'll need to do something a bit different depending on the caller. Abstract the code that marshals the page array into an iovec. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23cifs: allow caller to specify completion op when allocating writedataJeff Layton1-1/+3
We'll need a different set of write completion ops when not writing out of the pagecache. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23cifs: add pid field to cifs_writedataJeff Layton1-0/+1
We'll need this to handle rwpidforward option correctly when we use async writes in the aio_write op. Signed-off-by: Jeff Layton <jlayton@redhat.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23CIFS: Expand CurrentMid fieldPavel Shilovsky1-1/+1
While in CIFS/SMB we have 16 bit mid, in SMB2 it is 64 bit. Convert the existing field to 64 bit and mask off higher bits for CIFS/SMB. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23CIFS: Separate protocol-specific code from cifs_readv_receive codePavel Shilovsky1-1/+1
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23CIFS: Separate protocol-specific code from demultiplex codePavel Shilovsky1-3/+2
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-23CIFS: Separate protocol-specific code from transport routinesPavel Shilovsky1-1/+1
that lets us use this functions for SMB2. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
2012-03-21cifs: clean up call to cifs_dfs_release_automount_timer()Jeff Layton1-0/+6
Take the #ifdef junk out of the code, and turn it into a noop macro when CONFIG_CIFS_DFS_UPCALL isn't defined. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-03-21CIFS: Introduce credit-based flow controlPavel Shilovsky1-0/+3
and send no more than credits value requests at once. For SMB/CIFS it's trivial: increment this value by receiving any message and decrement by sending one. Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2011-10-29cifs: Assume passwords are encoded according to iocharset (try #2)Shirish Pargaonkar1-3/+5
Re-posting a patch originally posted by Oskar Liljeblad after rebasing on 3.2. Modify cifs to assume that the supplied password is encoded according to iocharset. Before this patch passwords would be treated as raw 8-bit data, which made authentication with Unicode passwords impossible (at least passwords with characters > 0xFF). The previous code would as a side effect accept passwords encoded with ISO 8859-1, since Unicode < 0x100 basically is ISO 8859-1. Software which relies on that will no longer support password chars > 0x7F unless it also uses iocharset=iso8859-1. (mount.cifs does not care about the encoding so it will work as expected.) Signed-off-by: Oskar Liljeblad <oskar@osk.mine.nu> Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Tested-by: A <nimbus1_03087@yahoo.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-24CIFS: Send as many mandatory unlock ranges at once as possiblePavel Shilovsky1-0/+3
that reduces a traffic and increases a performance. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-24CIFS: Implement caching mechanism for posix brlocksPavel Shilovsky1-2/+2
to handle all lock requests on the client in an exclusive oplock case. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-19cifs: add cifs_async_readvJeff Layton1-0/+24
...which will allow cifs to do an asynchronous read call to the server. The caller will allocate and set up cifs_readdata for each READ_AND_X call that should be issued on the wire. The pages passed in are added to the pagecache, but not placed on the LRU list yet (as we need the page->lru to keep the pages on the list in the readdata). When cifsd identifies the mid, it will see that there is a special receive handler for the call, and use that to receive the rest of the frame. cifs_readv_receive will then marshal up a kvec array with kmapped pages from the pagecache, which eliminates one copy of the data. Once the data is received, the pages are added to the LRU list, set uptodate, and unlocked. Reviewed-and-Tested-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com>
2011-10-19cifs: add a callback function to receive the rest of the frameJeff Layton1-2/+3
In order to handle larger SMBs for readpages and other calls, we want to be able to read into a preallocated set of buffers. Rather than changing all of the existing code to preallocate buffers however, we instead add a receive callback function to the MID. cifsd will call this function once the mid_q_entry has been identified in order to receive the rest of the SMB. If the mid can't be identified or the receive pointer is unset, then the standard 3rd phase receive function will be called. Reviewed-and-Tested-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com>
2011-10-17cifs: Call id to SID mapping functions to change owner/group (try #4 repost)Shirish Pargaonkar1-3/+4
Now build security descriptor to change either owner or group at the server. Initially security descriptor was built to change only (D)ACL, that functionality has been extended. When either an Owner or a Group of a file object at the server is changed, rest of security descriptor remains same (DACL etc.). To set security descriptor, it is necessary to open that file with permission bits of either WRITE_DAC if DACL is being modified or WRITE_OWNER (Take Ownership) if Owner or Group is being changed. It is the server that decides whether a set security descriptor with either owner or group change succeeds or not. Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com> Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-13CIFS: Simplify byte range locking codePavel Shilovsky1-1/+1
Split cifs_lock into several functions and let CIFSSMBLock get pid as an argument. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
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