debugfs: dump "fid" and "lma" xattrs on inode stat

[tools/e2fsprogs.git] / debugfs / debugfs.c

diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
index 36243f6..5b715f9 100644 (file)
--- a/debugfs/debugfs.c
+++ b/debugfs/debugfs.c
@@ -512,9 +512,47 @@ static void dump_xattr_string(FILE *out, const char *str, int len)
                        fprintf(out, "%02x ", (unsigned char)str[i]);
 }
 
+#ifdef HAVE_LFSCK
+#include "ext2fs/lfsck.h"
+
+static void print_fidstr(FILE *out, ext2_ino_t inode_num, void *data, int len)
+{
+       struct filter_fid *ff = data;
+       struct lu_fid parent_fid = ff->ff_parent;
+       int stripe;
+
+       if (len < sizeof(*ff)) {
+               fprintf(stderr, "%s: error: fid for inode %u smaller than "
+                       "expected (%d bytes).\n",
+                       debug_prog_name, inode_num, len);
+               return;
+       }
+       lfsck_swab_fid(&parent_fid);
+       stripe = parent_fid.f_ver; /* stripe is stored in f_ver */
+       parent_fid.f_ver = 0;
+       fprintf(out, "  fid: objid=%llu seq=%llu parent="DFID" stripe=%u\n",
+               ext2fs_le64_to_cpu(ff->ff_objid),
+               ext2fs_le64_to_cpu(ff->ff_seq), PFID(&parent_fid), stripe);
+}
+
+static void print_lmastr(FILE *out, ext2_ino_t inode_num, void *data, int len)
+{
+       struct lustre_mdt_attrs *lma = data;
+
+       if (len < sizeof(*lma)) {
+               fprintf(stderr, "%s: error: lma for inode %u smaller than "
+                       "expected (%d bytes).\n",
+                       debug_prog_name, inode_num, len);
+               return;
+       }
+       lfsck_swab_fid(&lma->lma_self_fid);
+       fprintf(out, "  lma: fid="DFID"\n", PFID(&lma->lma_self_fid));
+}
+#endif /* HAVE_LFSCK */
+
 static void internal_dump_inode_extra(FILE *out,
                                      const char *prefix EXT2FS_ATTR((unused)),
-                                     ext2_ino_t inode_num EXT2FS_ATTR((unused)),
+                                     ext2_ino_t inode_num,
                                      struct ext2_inode_large *inode)
 {
        struct ext2_ext_attr_entry *entry;
@@ -566,6 +604,24 @@ static void internal_dump_inode_extra(FILE *out,
                                                  start + entry->e_value_offs,
                                                  entry->e_value_size);
                        fprintf(out, "\" (%u)\n", entry->e_value_size);
+#ifdef HAVE_LFSCK
+                       /* Special decoding for Lustre filter-fid */
+                       if ((entry->e_name_index == EXT2_ATTR_INDEX_TRUSTED ||
+                            entry->e_name_index == EXT2_ATTR_INDEX_LUSTRE) &&
+                           !strncmp(EXT2_EXT_ATTR_NAME(entry),
+                                    "fid", entry->e_name_len))
+                               print_fidstr(out, inode_num,
+                                            start + entry->e_value_offs,
+                                            entry->e_value_size);
+                       /* Special decoding for Lustre lma */
+                       if ((entry->e_name_index == EXT2_ATTR_INDEX_TRUSTED ||
+                            entry->e_name_index == EXT2_ATTR_INDEX_LUSTRE) &&
+                           !strncmp(EXT2_EXT_ATTR_NAME(entry),
+                                    "lma", entry->e_name_len))
+                               print_lmastr(out, inode_num,
+                                            start + entry->e_value_offs,
+                                            entry->e_value_size);
+#endif
                        entry = next;
                }
        }