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authorJakob Unterwurzacher2024-05-05 22:46:17 +0200
committerJakob Unterwurzacher2024-05-05 22:46:17 +0200
commita38507978442f28ace42ec0003c4a2bf61cb4a91 (patch)
treeddeaca750ba9c260249448d8817a321dab6c4e45 /internal
parentbbfbf37bd73f4aac333c7a65f80d5d977a548e20 (diff)
reverse: use incrementing inode number for gocryptfs.longname.*.name files
ed0a12b7337c2d88c027329f64e73070da17d5b3 already fixed the kernel side, now we also want the .name files to NOT appear hardlinked when just looking at the inode number. Relates-to: https://github.com/rfjakob/gocryptfs/issues/802
Diffstat (limited to 'internal')
-rw-r--r--internal/fusefrontend_reverse/virtualnode.go11
1 files changed, 9 insertions, 2 deletions
diff --git a/internal/fusefrontend_reverse/virtualnode.go b/internal/fusefrontend_reverse/virtualnode.go
index 688f536..922cfa7 100644
--- a/internal/fusefrontend_reverse/virtualnode.go
+++ b/internal/fusefrontend_reverse/virtualnode.go
@@ -86,8 +86,15 @@ func (n *Node) newVirtualMemNode(content []byte, parentStat *syscall.Stat_t, ino
// Adjust inode number and size
rn := n.rootNode()
st := parentStat
- q := inomap.NewQIno(uint64(st.Dev), inoTag, uint64(st.Ino))
- st.Ino = rn.inoMap.Translate(q)
+ if inoTag == inoTagNameFile {
+ // No stable mapping for gocryptfs.longname.*.name files, instead use an
+ // incrementing counter. We don't want two of those files to ever have the
+ // same inode number, even for hard-linked files.
+ st.Ino = rn.inoMap.NextSpillIno()
+ } else {
+ q := inomap.NewQIno(uint64(st.Dev), inoTag, uint64(st.Ino))
+ st.Ino = rn.inoMap.Translate(q)
+ }
st.Size = int64(len(content))
st.Mode = virtualFileMode
st.Nlink = 1