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path: root/fs/ksmbd/oplock.c
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2021-11-11ksmbd: change LeaseKey data type to u8 arrayNamjae Jeon1-15/+9
cifs define LeaseKey as u8 array in structure. To move lease structure to smbfs_common, ksmbd change LeaseKey data type to u8 array. Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-11-11ksmbd: remove smb2_buf_length in smb2_hdrNamjae Jeon1-12/+12
To move smb2_hdr to smbfs_common, This patch remove smb2_buf_length variable in smb2_hdr. Also, declare smb2_get_msg function to get smb2 request/response from ->request/response_buf. Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-30ksmbd: add buffer validation for SMB2_CREATE_CONTEXTHyunchul Lee1-10/+31
Add buffer validation for SMB2_CREATE_CONTEXT. Cc: Ronnie Sahlberg <ronniesahlberg@gmail.com> Reviewed-by: Ralph Boehme <slow@samba.org> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-03ksmbd: fix translation in create_posix_rsp_buf()Christian Brauner1-2/+4
When transferring ownership information to the client the k*ids are translated into raw *ids before they are sent over the wire. The function currently erroneously translates the k*ids according to the mount's idmapping. Instead, reporting the owning *ids to userspace the underlying k*ids need to be mapped up in the caller's user namespace. This is how stat() works. The caller in this instance is ksmbd itself and ksmbd always runs in the initial user namespace. Translate according to that taking any potential idmapped mounts into account. Switch to from_k*id_munged() which ensures that the overflow*id is returned instead of the (*id_t)-1 when the k*id can't be translated. Cc: Steve French <stfrench@microsoft.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Namjae Jeon <namjae.jeon@samsung.com> Cc: Hyunchul Lee <hyc.lee@gmail.com> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: linux-cifs@vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-07-13ksmbd: remove unneeded check_context_errNamjae Jeon1-1/+2
Coverity Scan seems to report false alarm. *** CID 1505930: (USE_AFTER_FREE) /fs/ksmbd/smb2pdu.c: 2527 in smb2_open() >>> CID 1505930: (USE_AFTER_FREE) >>> Passing freed pointer "context" as an argument to >>> "check_context_err". This patch remove unneeded check_context_err to make coverity scan happy. Reported-by: Coverity Scan <scan-admin@coverity.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-07-10ksmbd: make smb2_find_context_vals return NULL if not foundHyunchul Lee1-1/+1
instead of -ENOENT, make smb2_find_context_vals return NULL if the given context cannot be found. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-07-05ksmbd: call mnt_user_ns once in a functionHyunchul Lee1-2/+3
Avoid calling mnt_user_ns() many time in a function. Cc: Christoph Hellwig <hch@infradead.org> Cc: Christian Brauner <christian@brauner.io> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-07-02ksmbd: add user namespace supportHyunchul Lee1-2/+2
For user namespace support, call vfs functions with struct user_namespace got from struct path. This patch have been tested mannually as below. Create an id-mapped mount using the mount-idmapped utility (https://github.com/brauner/mount-idmapped). $ mount-idmapped --map-mount b:1003:1002:1 /home/foo <EXPORT DIR>/foo (the user, "foo" is 1003, and the user "bar" is 1002). And mount the export directory using cifs with the user, "bar". succeed to create/delete/stat/read/write files and directory in the <EXPORT DIR>/foo. But fail with a bind mount for /home/foo. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-06-30ksmbd: remove SMB1 oplock level macrosNamjae Jeon1-1/+1
ksmbd does not support SMB1. This patch remove SMB1 oplock level macros. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-06-29ksmbd: opencode to remove ATTR_FP macroNamjae Jeon1-1/+3
Opencode to remove ATTR_FP macro. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-06-29ksmbd: opencode to remove FP_INODE macroNamjae Jeon1-1/+1
Opencode to remove FP_INODE macro. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-06-29ksmbd: remove and replace macros with inline functions in smb_common.hHyunchul Lee1-2/+4
Remove and replace macros with inline functions in smb_common.h Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2021-06-28ksmbd: move fs/cifsd to fs/ksmbdNamjae Jeon1-0/+1703
Move fs/cifsd to fs/ksmbd and rename the remaining cifsd name to ksmbd. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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