LU-11446 e2fsck: check trusted.link when fixing nlink

[tools/e2fsprogs.git] / lib / ext2fs / lfsck.h

diff --git a/lib/ext2fs/lfsck.h b/lib/ext2fs/lfsck.h
index 00071f2..f7b8560 100644 (file)
--- a/lib/ext2fs/lfsck.h
+++ b/lib/ext2fs/lfsck.h
@@ -86,4 +86,26 @@ struct filter_fid {
 #define PFID_STRIPE_IDX_BITS   16
 #define PFID_STRIPE_COUNT_MASK ((1 << PFID_STRIPE_IDX_BITS) - 1)
 
+#ifndef LINK_EA_MAGIC
+/** Hardlink data is name and parent fid.
+ * Stored in this crazy struct for maximum packing and endian-neutrality */
+struct link_ea_entry {
+       /** lee_reclen is a __u16 stored big-endian, unaligned */
+       unsigned char   lee_reclen[2];  /* record size in bytes */
+       unsigned char   lee_parent_fid[sizeof(struct lu_fid)];
+       char            lee_name[0];    /* filename without trailing NUL */
+}__attribute__((packed));
+
+/** The link ea holds 1 \a link_ea_entry for each hardlink */
+#define LINK_EA_MAGIC 0x11EAF1DFUL
+struct link_ea_header {
+       __u32 leh_magic;                /* LINK_EA_MAGIC */
+       __u32 leh_reccount;             /* number of records in leh_entry[] */
+       __u64 leh_len;                  /* total size in bytes */
+       __u32 leh_overflow_time;        /* when link xattr ran out of space */
+       __u32 padding;
+/*     struct link_ea_entry leh_entry; packed array of variable-size entries */
+};
+#endif
+
 #endif /* LFSCK_H */