From 51c918e149ee18399d58add66222cf94dd25d3e8 Mon Sep 17 00:00:00 2001 From: Timo Warns Date: Wed, 15 Oct 2014 21:12:03 +0200 Subject: mtd-utils: jffs2dump: XATTR and XREF support for content dump Add support for XATTR and XREF nodes to "dump image content" action of jffs2dump. Signed-off-by: Timo Warns Signed-off-by: Artem Bityutskiy --- jffs2dump.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) diff --git a/jffs2dump.c b/jffs2dump.c index 9e13e98..edac2b2 100644 --- a/jffs2dump.c +++ b/jffs2dump.c @@ -285,6 +285,47 @@ void do_dumpcontent (void) p += PAD(je32_to_cpu (node->d.totlen)); break; + case JFFS2_NODETYPE_XATTR: + memcpy(name, node->x.data, node->x.name_len); + name[node->x.name_len] = '\x00'; + printf ("%8s Xattr node at 0x%08zx, totlen 0x%08x, xid %5d, version %5d, name_len %3d, name %s\n", + obsolete ? "Obsolete" : "", + p - data, + je32_to_cpu (node->x.totlen), + je32_to_cpu (node->x.xid), + je32_to_cpu (node->x.version), + node->x.name_len, + name); + + crc = mtd_crc32 (0, node, sizeof (struct jffs2_raw_xattr) - sizeof (node->x.node_crc)); + if (crc != je32_to_cpu (node->x.node_crc)) { + printf ("Wrong node_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->x.node_crc), crc); + p += PAD(je32_to_cpu (node->x.totlen)); + dirty += PAD(je32_to_cpu (node->x.totlen)); + continue; + } + + crc = mtd_crc32 (0, p + sizeof (struct jffs2_raw_xattr), node->x.name_len + je16_to_cpu (node->x.value_len) + 1); + if (crc != je32_to_cpu (node->x.data_crc)) { + printf ("Wrong data_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->x.data_crc), crc); + p += PAD(je32_to_cpu (node->x.totlen)); + dirty += PAD(je32_to_cpu (node->x.totlen)); + continue; + } + p += PAD(je32_to_cpu (node->x.totlen)); + break; + + case JFFS2_NODETYPE_XREF: + printf ("%8s Xref node at 0x%08zx, totlen 0x%08x, xid %5d, xseqno %5d, #ino %8d\n", + obsolete ? "Obsolete" : "", + p - data, + je32_to_cpu (node->r.totlen), + je32_to_cpu (node->r.xid), + je32_to_cpu (node->r.xseqno), + je32_to_cpu (node->r.ino)); + p += PAD(je32_to_cpu (node->r.totlen)); + break; + case JFFS2_NODETYPE_SUMMARY: { int i; @@ -359,6 +400,29 @@ void do_dumpcontent (void) break; } + case JFFS2_NODETYPE_XATTR : { + struct jffs2_sum_xattr_flash *spx; + spx = sp; + printf ("%14s Xattr offset 0x%08x, totlen 0x%08x, version %5d, #xid %8d\n", + "", + je32_to_cpu (spx->offset), + je32_to_cpu (spx->totlen), + je32_to_cpu (spx->version), + je32_to_cpu (spx->xid)); + sp += JFFS2_SUMMARY_XATTR_SIZE; + break; + } + + case JFFS2_NODETYPE_XREF : { + struct jffs2_sum_xref_flash *spr; + spr = sp; + printf ("%14s Xref offset 0x%08x\n", + "", + je32_to_cpu (spr->offset)); + sp += JFFS2_SUMMARY_XREF_SIZE; + break; + } + default : printf("Unknown summary node!\n"); break; -- cgit v1.2.3