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commit 1a093d1233a4d5ef83d6141928f5de693f1333ee
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Author: Andrew Price <anprice@redhat.com>
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Date: Thu Nov 30 19:00:31 2017 +0000
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gfs2_edit: Print offsets of indirect pointers
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When printing indirect pointers gfs2_edit doesn't keep track of the
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location of the pointer within the indirect block and only prints an
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index for each non-zero pointer. Instead, store the offset of each
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non-zero pointer and print it when displaying indirect blocks, as it is
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done in interactive mode.
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Resolves: rhbz#1518938
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Signed-off-by: Andrew Price <anprice@redhat.com>
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diff --git a/gfs2/edit/extended.c b/gfs2/edit/extended.c
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index e8048532..214fdba4 100644
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--- a/gfs2/edit/extended.c
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+++ b/gfs2/edit/extended.c
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@@ -51,6 +51,7 @@ static int get_height(void)
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static int _do_indirect_extended(char *diebuf, struct iinfo *iinf, int hgt)
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{
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unsigned int x, y;
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+ off_t headoff;
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uint64_t p;
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int i_blocks;
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@@ -62,15 +63,14 @@ static int _do_indirect_extended(char *diebuf, struct iinfo *iinf, int hgt)
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iinf->ii[x].dirents = 0;
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memset(&iinf->ii[x].dirent, 0, sizeof(struct gfs2_dirents));
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}
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- for (x = (sbd.gfs1 ? sizeof(struct gfs_indirect):
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- sizeof(struct gfs2_meta_header)), y = 0;
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- x < sbd.bsize;
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- x += sizeof(uint64_t), y++) {
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+ headoff = sbd.gfs1 ? sizeof(struct gfs_indirect) : sizeof(struct gfs2_meta_header);
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+ for (x = headoff, y = 0; x < sbd.bsize; x += sizeof(uint64_t), y++) {
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p = be64_to_cpu(*(uint64_t *)(diebuf + x));
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if (p) {
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iinf->ii[i_blocks].block = p;
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iinf->ii[i_blocks].mp.mp_list[hgt] = i_blocks;
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iinf->ii[i_blocks].is_dir = FALSE;
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+ iinf->ii[i_blocks].ptroff = (x - headoff) / sizeof(uint64_t);
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i_blocks++;
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}
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}
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@@ -177,7 +177,7 @@ static int display_indirect(struct iinfo *ind, int indblocks, int level,
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for (h = 0; h < level; h++)
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print_gfs2(" ");
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}
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- print_gfs2("%d => ", pndx);
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+ print_gfs2("%d: 0x%"PRIx64" => ", pndx, ind->ii[pndx].ptroff);
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if (termlines)
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move(line,9);
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print_gfs2("0x%"PRIx64" / %"PRId64, ind->ii[pndx].block,
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diff --git a/gfs2/edit/gfs2hex.c b/gfs2/edit/gfs2hex.c
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index 3d0f10dd..8abadd21 100644
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--- a/gfs2/edit/gfs2hex.c
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+++ b/gfs2/edit/gfs2hex.c
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@@ -255,6 +255,8 @@ void do_dinode_extended(struct gfs2_dinode *dine, struct gfs2_buffer_head *lbh)
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indirect->ii[indirect_blocks].mp.mp_list[0] =
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ptroff;
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indirect->ii[indirect_blocks].is_dir = FALSE;
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+ indirect->ii[indirect_blocks].ptroff =
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+ (x - sizeof(*dine)) / sizeof(uint64_t);
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indirect_blocks++;
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}
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ptroff++;
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diff --git a/gfs2/edit/hexedit.h b/gfs2/edit/hexedit.h
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index 4f7207b0..d2992d8e 100644
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--- a/gfs2/edit/hexedit.h
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+++ b/gfs2/edit/hexedit.h
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@@ -81,6 +81,7 @@ struct indirect_info {
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struct gfs2_leaf lf;
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struct metapath mp;
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struct gfs2_dirents dirent[64];
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+ uint64_t ptroff;
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};
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struct iinfo {
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