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authorDavid Disseldorp <ddiss@suse.de>2013-01-15 17:22:59 +0100
committerJeremy Allison <jra@samba.org>2013-01-16 23:15:06 +0100
commitef00eb90e56dfac2d823582cec92abf1fa9905f1 (patch)
tree3a582f5ce6ae0a1da9e55de2a380a79fa4bd8bdd /source4/dsdb
parent2bde9636888067210dc38523b6fafaa0b179ec3b (diff)
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s3-vfs: add copy_chunk vfs hooks
copy_chunk copies n bytes from a source file at a specific offset to a destination file at a given offset. This interface will be used in handling smb2 FSCTL_SRV_COPYCHUNK ioctl requests. Use a pread/pwrite loop in vfs_default, so that requests referring to the same src and dest file are possible. Provide send and receive hooks for copy chunk VFS interface, allowing asynchronous behaviour. Check whether the request source offset + length exceeds the current size. Return STATUS_INVALID_VIEW_SIZE under such a condition, matching Windows server behaviour. Reviewed by: Jeremy Allison <jra@samba.org>
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