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https://github.com/seaweedfs/seaweedfs.git
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Chris Lu
68f0793b6f
A \\server\share -dir was passed to WinFsp as a plain mount point, which treats it as a directory path on an actual remote server and fails. Turn it into the VolumePrefix option instead, so the mount registers with the WinFsp network provider: the UNC path is then reachable from every logon session, which a drive letter mounted from a service is not, and each user can map their own drive letter to it.
33 lines
1.2 KiB
Go
33 lines
1.2 KiB
Go
package winfsp
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import (
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"fmt"
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"strings"
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)
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// VolumePrefix converts a \\server\share mount point into WinFsp's
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// VolumePrefix option, which registers the mount as a network file system.
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// That registration is what makes the mount reachable from every logon
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// session by its UNC path — a drive letter lives inside the session that
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// created it, which is why a service mount is invisible to the users logged
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// on at the desktop. Handed through as a plain mount point instead, the UNC
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// path would be taken for a directory on an actual remote server and the
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// mount would fail.
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//
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// Mount points that are not UNC paths return "", including the \\?\ and \\.\
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// device forms, which WinFsp interprets itself.
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func VolumePrefix(mountPoint string) (string, error) {
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normalized := strings.ReplaceAll(mountPoint, "/", `\`)
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if !strings.HasPrefix(normalized, `\\`) {
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return "", nil
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}
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if strings.HasPrefix(normalized, `\\?\`) || strings.HasPrefix(normalized, `\\.\`) {
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return "", nil
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}
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parts := strings.Split(strings.TrimRight(normalized[2:], `\`), `\`)
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if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
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return "", fmt.Errorf(`a network mount point must be \\server\share, got %s`, mountPoint)
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}
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return `\` + parts[0] + `\` + parts[1], nil
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}
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