From 17eb5c417bd56be4b2f7627c2d6879fbad6a86d6 Mon Sep 17 00:00:00 2001 From: Gao Xiang Date: Mon, 22 Nov 2021 07:48:48 +0800 Subject: [PATCH] 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 | " " 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 | " " 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 Cc: Guo Xuenan Reported-by: David Michael Signed-off-by: Gao Xiang --- dump/main.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/dump/main.c b/dump/main.c index b7560eca1080..f85903b059d2 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); -- 2.30.2