2020-06-21 12:42:18 +02:00
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package fusefrontend
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import (
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"time"
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2020-06-21 12:44:32 +02:00
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"github.com/rfjakob/gocryptfs/internal/contentenc"
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"github.com/rfjakob/gocryptfs/internal/inomap"
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"github.com/rfjakob/gocryptfs/internal/nametransform"
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2020-06-21 12:42:18 +02:00
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"github.com/rfjakob/gocryptfs/internal/tlog"
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)
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2020-06-21 12:44:32 +02:00
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// RootNode is the root of the filesystem tree of Nodes.
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type RootNode struct {
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Node
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// args stores configuration arguments
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args Args
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// Filename encryption helper
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nameTransform nametransform.NameTransformer
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// Content encryption helper
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contentEnc *contentenc.ContentEnc
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// MitigatedCorruptions is used to report data corruption that is internally
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// mitigated by ignoring the corrupt item. For example, when OpenDir() finds
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// a corrupt filename, we still return the other valid filenames.
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// The corruption is logged to syslog to inform the user, and in addition,
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// the corrupt filename is logged to this channel via
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// reportMitigatedCorruption().
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// "gocryptfs -fsck" reads from the channel to also catch these transparently-
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// mitigated corruptions.
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MitigatedCorruptions chan string
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// IsIdle flag is set to zero each time fs.isFiltered() is called
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// (uint32 so that it can be reset with CompareAndSwapUint32).
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// When -idle was used when mounting, idleMonitor() sets it to 1
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// periodically.
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IsIdle uint32
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// inoMap translates inode numbers from different devices to unique inode
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// numbers.
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inoMap *inomap.InoMap
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}
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func NewRootNode(args Args, c *contentenc.ContentEnc, n nametransform.NameTransformer) *RootNode {
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// TODO
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return &RootNode{
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args: args,
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nameTransform: n,
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contentEnc: c,
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inoMap: inomap.New(),
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}
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}
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2020-06-21 12:42:18 +02:00
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// reportMitigatedCorruption is used to report a corruption that was transparently
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// mitigated and did not return an error to the user. Pass the name of the corrupt
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// item (filename for OpenDir(), xattr name for ListXAttr() etc).
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// See the MitigatedCorruptions channel for more info.
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func (rn *RootNode) reportMitigatedCorruption(item string) {
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if rn.MitigatedCorruptions == nil {
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return
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}
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select {
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case rn.MitigatedCorruptions <- item:
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case <-time.After(1 * time.Second):
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tlog.Warn.Printf("BUG: reportCorruptItem: timeout")
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//debug.PrintStack()
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return
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}
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}
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