aboutsummaryrefslogtreecommitdiffstats
path: root/fs/cifs/cifsglob.h (follow)
AgeCommit message (Collapse)AuthorFilesLines
2013-02-25Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespaceLinus Torvalds1-11/+11
Pull user namespace and namespace infrastructure changes from Eric W Biederman: "This set of changes starts with a few small enhnacements to the user namespace. reboot support, allowing more arbitrary mappings, and support for mounting devpts, ramfs, tmpfs, and mqueuefs as just the user namespace root. I do my best to document that if you care about limiting your unprivileged users that when you have the user namespace support enabled you will need to enable memory control groups. There is a minor bug fix to prevent overflowing the stack if someone creates way too many user namespaces. The bulk of the changes are a continuation of the kuid/kgid push down work through the filesystems. These changes make using uids and gids typesafe which ensures that these filesystems are safe to use when multiple user namespaces are in use. The filesystems converted for 3.9 are ceph, 9p, afs, ocfs2, gfs2, ncpfs, nfs, nfsd, and cifs. The changes for these filesystems were a little more involved so I split the changes into smaller hopefully obviously correct changes. XFS is the only filesystem that remains. I was hoping I could get that in this release so that user namespace support would be enabled with an allyesconfig or an allmodconfig but it looks like the xfs changes need another couple of days before it they are ready." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (93 commits) cifs: Enable building with user namespaces enabled. cifs: Convert struct cifs_ses to use a kuid_t and a kgid_t cifs: Convert struct cifs_sb_info to use kuids and kgids cifs: Modify struct smb_vol to use kuids and kgids cifs: Convert struct cifsFileInfo to use a kuid cifs: Convert struct cifs_fattr to use kuid and kgids cifs: Convert struct tcon_link to use a kuid. cifs: Modify struct cifs_unix_set_info_args to hold a kuid_t and a kgid_t cifs: Convert from a kuid before printing current_fsuid cifs: Use kuids and kgids SID to uid/gid mapping cifs: Pass GLOBAL_ROOT_UID and GLOBAL_ROOT_GID to keyring_alloc cifs: Use BUILD_BUG_ON to validate uids and gids are the same size cifs: Override unmappable incoming uids and gids nfsd: Enable building with user namespaces enabled. nfsd: Properly compare and initialize kuids and kgids nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids nfsd: Modify nfsd4_cb_sec to use kuids and kgids nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversion nfsd: Convert nfsxdr to use kuids and kgids nfsd: Convert nfs3xdr to use kuids and kgids ...
2013-02-13cifs: Convert struct cifs_ses to use a kuid_t and a kgid_tEric W. Biederman1-2/+2
Cc: Steve French <smfrench@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-02-13cifs: Modify struct smb_vol to use kuids and kgidsEric W. Biederman1-5/+5
Add two helper functions get_option_uid and get_option_gid to handle the work of parsing uid and gids paramaters from the command line and making kuids and kgids out of them. Cc: Steve French <smfrench@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-02-13cifs: Convert struct cifsFileInfo to use a kuidEric W. Biederman1-1/+1
Cc: Steve French <smfrench@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-02-13cifs: Convert struct cifs_fattr to use kuid and kgidsEric W. Biederman1-2/+2
In cifs_unix_to_basic_fattr only update the cifs_fattr with an id if it is valid after conversion. Cc: Steve French <smfrench@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-02-13cifs: Convert struct tcon_link to use a kuid.Eric W. Biederman1-1/+1
Cc: Steve French <smfrench@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-01-01CIFS: Don't let read only caching for mandatory byte-range locked filesPavel Shilovsky1-0/+1
If we have mandatory byte-range locks on a file we can't cache reads because pagereading may have conflicts with these locks on the server. That's why we should allow level2 oplocks for files without mandatory locks only. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2013-01-01Revert "CIFS: Fix write after setting a read lock for read oplock files"Pavel Shilovsky1-1/+0
that solution has data races and can end up two identical writes to the server: when clientCanCacheAll value can be changed during the execution of __generic_file_aio_write. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-11CIFS: Fix write after setting a read lock for read oplock filesPavel Shilovsky1-0/+1
If we have a read oplock and set a read lock in it, we can't write to the locked area - so, filemap_fdatawrite may fail with a no information for a userspace application even if we request a write to non-locked area. Fix this by populating the page cache without marking affected pages dirty after a successful write directly to the server. Also remove CONFIG_CIFS_SMB2 ifdefs because it's suitable for both CIFS and SMB2 protocols. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-09Do not send SMB2 signatures for SMB3 framesSteve French1-1/+3
Restructure code to make SMB2 vs. SMB3 signing a protocol specific op. SMB3 signing (AES_CMAC) is not enabled yet, but this restructuring at least makes sure we don't send an smb2 signature on an smb3 signed connection. A followon patch will add AES_CMAC and enable smb3 signing. Signed-off-by: Steve French <smfrench@gmail.com> Acked-by: Jeff Layton <jlayton@samba.org>
2012-12-05make convert_delimiter use strchr instead of open-coding itSteve French1-9/+4
Take advantage of accelerated strchr() on arches that support it. Also, no caller ever passes in a NULL pointer. Get rid of the unneeded NULL pointer check. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05cifs: get rid of smb_vol->UNCip and smb_vol->portJeff Layton1-2/+1
Passing this around as a string is contorted and painful. Instead, just convert these to a sockaddr as soon as possible, since that's how we're going to work with it later anyway. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05Add SMB2.02 dialect supportSteve French1-0/+1
This patch enables optional for original SMB2 (SMB2.02) dialect by specifying vers=2.0 on mount. Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05CIFS: Make use of common cifs_build_path_to_root for CIFS and SMB2Steve French1-12/+0
because the is no difference here. This also adds support of prefixpath mount option for SMB2. Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-12-05default authentication needs to be at least ntlmv2 security for cifs mountsSteve French1-1/+1
We had planned to upgrade to ntlmv2 security a few releases ago, and have been warning users in dmesg on mount about the impending upgrade, but had to make a change (to use nltmssp with ntlmv2) due to testing issues with some non-Windows, non-Samba servers. The approach in this patch is simpler than earlier patches, and changes the default authentication mechanism to ntlmv2 password hashes (encapsulated in ntlmssp) from ntlm (ntlm is too weak for current use and ntlmv2 has been broadly supported for many, many years). Signed-off-by: Steve French <smfrench@gmail.com> Acked-by: Jeff Layton <jlayton@redhat.com>
2012-10-01[CIFS] Fix SMB2 negotiation support to select only one dialect (based on vers=)Steve French1-0/+9
Based on whether the user (on mount command) chooses: vers=3.0 (for smb3.0 support) vers=2.1 (for smb2.1 support) or (with subsequent patch, which will allow SMB2 support) vers=2.0 (for original smb2.02 dialect support) send only one dialect at a time during negotiate (we had been sending a list). Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-26CIFS: Make ops->close return voidPavel Shilovsky1-1/+2
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Fix fast lease break after open problemPavel Shilovsky1-0/+12
Now we walk though cifsFileInfo's list for every incoming lease break and look for an equivalent there. That approach misses lease breaks that come just after an open response - we don't have time to populate new cifsFileInfo structure to the list. Fix this by adding new list of pending opens and look for a lease there if we didn't find it in the list of cifsFileInfo structures. Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24CIFS: Request SMB2.1 leasesPavel Shilovsky1-0/+10
if server supports them and we need oplocks. Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24CIFS: Turn lock mutex into rw semaphorePavel Shilovsky1-1/+1
and allow several processes to walk through the lock list and read can_cache_brlcks value if they are not going to modify them. Signed-off-by: Pavel Shilovsky <pshilovsky@etersoft.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
2012-09-24CIFS: Move brlock code to ops structPavel Shilovsky1-0/+8
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
2012-09-24CIFS: Remove spinlock dependence in brlock processingPavel Shilovsky1-9/+9
Now we need to lock/unlock a spinlock while processing brlock ops on the inode. Move brlocks of a fid to a separate list and attach all such lists to the inode. This let us not hold a spinlock. Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
2012-09-24CIFS: Add NTLMSSP sec type to defaultsPavel Shilovsky1-1/+1
to let us negotiate SMB2 without specifying sec type explicitly. Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
2012-09-24cifs: remove kmap lock and rsize limitJeff Layton1-39/+0
Now that we aren't abusing the kmap address space, there's no need for this lock or to impose a limit on the rsize. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-09-24cifs: replace kvec array in readdata with a single kvecJeff Layton1-2/+1
The array is no longer needed. We just need a single kvec to hold the header for signature checking. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-09-24cifs: convert async read code to use pages array without kmappingJeff Layton1-2/+5
Replace the "marshal_iov" function with a "read_into_pages" function. That function will copy the read data off the socket and into the pages array, kmapping and reading pages one at a time. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-09-24cifs: turn the pages list in cifs_readdata into an arrayJeff Layton1-1/+2
We'll need an array to put into a smb_rqst, so convert this into an array instead of (ab)using the lru list_head. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-09-24cifs: allocate kvec array for cifs_readdata as a separate allocationJeff Layton1-1/+1
Eventually, we're going to want to append a list of pages to cifs_readdata instead of a list of kvecs. To prepare for that, turn the kvec array allocation into a separate one and just keep a pointer to it in the readdata. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2012-09-24cifs: convert async write code to pass in data via rq_pages arrayJeff Layton1-2/+2
Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24cifs: change cifs_call_async to use smb_rqst structsJeff Layton1-4/+4
For now, none of the callers populate rq_pages. That will be done for writes in a later patch. While we're at it, change the prototype of setup_async_request not to need a return pointer argument. Just return the pointer to the mid_q_entry or an ERR_PTR. Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24cifs: change signing routines to deal with smb_rqst structsJeff Layton1-0/+14
We need a way to represent a call to be sent on the wire that does not require having all of the page data kmapped. Behold the smb_rqst struct. This new struct represents an array of kvecs immediately followed by an array of pages. Convert the signing routines to use these structs under the hood and turn the existing functions for this into wrappers around that. For now, we're just changing these functions to take different args. Later, we'll teach them how to deal with arrays of pages. Reviewed-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move statfs to ops structPavel Shilovsky1-0/+5
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move oplock break to ops structPavel Shilovsky1-0/+4
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Process oplocks for SMB2Pavel Shilovsky1-0/+2
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move readdir code to ops structPavel Shilovsky1-0/+15
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move set_file_info to ops structPavel Shilovsky1-0/+3
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move set_file_size to ops structPavel Shilovsky1-0/+6
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move hardlink to ops structSteve French1-0/+4
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move rename to ops structPavel Shilovsky1-0/+3
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Enable signing in SMB2Pavel Shilovsky1-0/+2
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 Shilovsky1-0/+4
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move readpage code to ops structPavel Shilovsky1-0/+5
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 Shilovsky1-0/+47
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: Move async write to ops structPavel Shilovsky1-0/+3
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_readPavel Shilovsky1-0/+25
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move async read to ops structPavel Shilovsky1-0/+3
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Move r/wsize negotiating to ops structPavel Shilovsky1-0/+61
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
2012-09-24CIFS: Make flush code use ops structPavel Shilovsky1-0/+2
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 Shilovsky1-0/+3
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: Add open/close file support for SMB2Pavel Shilovsky1-0/+4
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org> Signed-off-by: Steve French <smfrench@gmail.com>
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.