erofs-utils: dump: fix de->nid issues

As David Michael reported, "
    In file included from main.c:11:
    main.c: In function 'erofs_checkdirent':
    ../include/erofs/print.h:68:25: error: format '%llu' expects argument of type 'long long unsigned int', but argument 3 has type '__le64' {aka 'long unsigned int'} [-Werror=format=]
       68 |                         "<E> " PR_FMT_FUNC_LINE(fmt),   \
          |                         ^~~~~~
    main.c:264:17: note: in expansion of macro 'erofs_err'
      264 |                 erofs_err("invalid file type %llu", de->nid);
          |                 ^~~~~~~~~
    main.c: In function 'erofs_read_dirent':
    ../include/erofs/print.h:68:25: error: format '%llu' expects argument of type 'long long unsigned int', but argument 3 has type '__le64' {aka 'long unsigned int'} [-Werror=format=]
       68 |                         "<E> " PR_FMT_FUNC_LINE(fmt),   \
          |                         ^~~~~~
    main.c:303:25: note: in expansion of macro 'erofs_err'
      303 |                         erofs_err("parse dir nid %llu error occurred\n",
          |                         ^~~~~~~~~
    cc1: all warnings being treated as errors
"

Also there are many de->nid lacking of endianness handling.
Should fix them together.

Link: https://lore.kernel.org/r/20211121234848.12663-1-xiang@kernel.org
Fixes: cf8be8a4352a ("erofs-utils: dump: add feature for collecting filesystem statistics")
Cc: Wang Qi <mpiglet@outlook.com>
Cc: Guo Xuenan <guoxuenan@huawei.com>
Reported-by: David Michael <fedora.dm0@gmail.com>
Signed-off-by: Gao Xiang <xiang@kernel.org>

1 files changed, 16 insertions, 15 deletions

diff --git a/dump/main.c b/dump/main.c
index b7560ec..f85903b 100644
--- a/dump/main.c
+++ b/dump/main.c
@@ -242,11 +242,12 @@ static inline int erofs_checkdirent(struct erofs_dirent *de,
 {
 	int dname_len;
 	unsigned int nameoff = le16_to_cpu(de->nameoff);
+	erofs_nid_t nid = le64_to_cpu(de->nid);
 
 	if (nameoff < sizeof(struct erofs_dirent) ||
 			nameoff >= PAGE_SIZE) {
 		erofs_err("invalid de[0].nameoff %u @ nid %llu",
-				nameoff, de->nid | 0ULL);
+				nameoff, nid | 0ULL);
 		return -EFSCORRUPTED;
 	}
 
@@ -255,13 +256,12 @@ static inline int erofs_checkdirent(struct erofs_dirent *de,
 	/* a corrupted entry is found */
 	if (nameoff + dname_len > maxsize ||
 			dname_len > EROFS_NAME_LEN) {
-		erofs_err("bogus dirent @ nid %llu",
-				le64_to_cpu(de->nid) | 0ULL);
+		erofs_err("bogus dirent @ nid %llu", nid | 0ULL);
 		DBG_BUGON(1);
 		return -EFSCORRUPTED;
 	}
 	if (de->file_type >= EROFS_FT_MAX) {
-		erofs_err("invalid file type %llu", de->nid);
+		erofs_err("invalid file type %llu", nid | 0ULL);
 		return -EFSCORRUPTED;
 	}
 	return dname_len;
@@ -273,7 +273,7 @@ static int erofs_read_dirent(struct erofs_dirent *de,
 {
 	int err;
 	erofs_off_t occupied_size = 0;
-	struct erofs_inode inode = { .nid = de->nid };
+	struct erofs_inode inode = { .nid = le64_to_cpu(de->nid) };
 
 	stats.files++;
 	stats.file_category_stat[de->file_type]++;
@@ -296,12 +296,12 @@ static int erofs_read_dirent(struct erofs_dirent *de,
 		update_file_size_statatics(occupied_size, inode.i_size);
 	}
 
-	if ((de->file_type == EROFS_FT_DIR)
-			&& de->nid != nid && de->nid != parent_nid) {
-		err = erofs_read_dir(de->nid, nid);
+	if (de->file_type == EROFS_FT_DIR && inode.nid != nid &&
+	    inode.nid != parent_nid) {
+		err = erofs_read_dir(inode.nid, nid);
 		if (err) {
 			erofs_err("parse dir nid %llu error occurred\n",
-					de->nid);
+				  inode.nid | 0ULL);
 			return err;
 		}
 	}
@@ -338,7 +338,8 @@ static int erofs_read_dir(erofs_nid_t nid, erofs_nid_t parent_nid)
 			int ret;
 
 			/* skip "." and ".." dentry */
-			if (de->nid == nid || de->nid == parent_nid) {
+			if (le64_to_cpu(de->nid) == nid ||
+			    le64_to_cpu(de->nid) == parent_nid) {
 				de++;
 				continue;
 			}
@@ -399,18 +400,18 @@ static int erofs_get_pathname(erofs_nid_t nid, erofs_nid_t parent_nid,
 			if (len < 0)
 				return len;
 
-			if (de->nid == target) {
+			if (le64_to_cpu(de->nid) == target) {
 				memcpy(path + pos, dname, len);
 				path[pos + len] = '\0';
 				return 0;
 			}
 
 			if (de->file_type == EROFS_FT_DIR &&
-					de->nid != parent_nid &&
-					de->nid != nid) {
+			    le64_to_cpu(de->nid) != parent_nid &&
+			    le64_to_cpu(de->nid) != nid) {
 				memcpy(path + pos, dname, len);
-				err = erofs_get_pathname(de->nid, nid,
-						target, path, pos + len);
+				err = erofs_get_pathname(le64_to_cpu(de->nid),
+						nid, target, path, pos + len);
 				if (!err)
 					return 0;
 				memset(path + pos, 0, len);