jschoubben
46c16e18fe
NFS and FUSE report a zero f_fsid, so another export or another FUSE mount at the same point was named alike and kept without a warrant; xfs's f_fsid follows the device number. A filesystem is now named by its UUID (its device matched in /dev/disk/by-uuid), else a nonzero f_fsid, else mountinfo's source; one that cannot be named is never kept or taken. Entries left on a filesystem not back within 30 days are forgotten, said once, and the naming read is shared per mount.
62 lines
2.0 KiB
Go
62 lines
2.0 KiB
Go
//go:build !linux
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package apply
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import (
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"context"
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"errors"
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"github.com/novox/mesh-host/internal/declaration"
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"github.com/novox/mesh-host/internal/store"
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)
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// The node-engine runs on Linux: a folder is kept only by descriptor and through the kernel's ACL attributes,
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// which this system has not. Everything refuses, saying so, and changes nothing.
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var errNoKeeping = errors.New("a shared folder is kept only by descriptor, which this system cannot; nothing was changed")
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// FolderFacts is what the engine reads of a folder before keeping it.
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type FolderFacts struct {
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UID, GID uint32
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Empty bool
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}
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func readFolder(string) (FolderFacts, error) { return FolderFacts{}, errNoKeeping }
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func keepTop(string, map[uint32]bool) (bool, error) { return false, errNoKeeping }
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func CreatePath(string) (int, error) { return 0, errNoKeeping }
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func ReconcileKept(context.Context) []string { return nil }
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func JudgeKept(string, []store.KeptUser, WalkLimits) (WalkCounts, error) {
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return WalkCounts{}, errNoKeeping
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}
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// KeptLook is what one look found of a kept folder.
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type KeptLook struct {
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Short []string
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Busy bool
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Sweep store.KeptSweep
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Repaired, Unrepaired int
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Failed string
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}
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func LookKept(string, []store.KeptUser, WalkLimits) KeptLook {
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return KeptLook{Failed: errNoKeeping.Error()}
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}
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func TakeFolder(context.Context, *declaration.Declaration, string, string, string, string, Runner) (<-chan struct{},
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string, error) {
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return nil, "", errNoKeeping
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}
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// Watcher watches nothing where a folder is not kept.
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type Watcher struct{}
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func NewWatcher() (*Watcher, error) { return nil, errNoKeeping }
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func (*Watcher) Set(map[string][]store.KeptUser) {}
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func (*Watcher) Run(context.Context) {}
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// MountFsid reads no filesystem id where a folder is not kept.
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var MountFsid = func(string) string { return "" }
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// MountUUID reads no UUID where a folder is not kept.
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var MountUUID = func(string) string { return "" }
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