diff options
| author | Namjae Jeon <linkinjeon@kernel.org> | 2022-01-30 18:31:01 +0900 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2022-02-04 00:12:22 -0600 |
| commit | 04e260948a160d3b7d622bf4c8a96fa4577c09bd (patch) | |
| tree | 058960c6cad452f40026442df0265681a79bdd53 | |
| parent | 97550c7478a2da93e348d8c3075d92cddd473a78 (diff) | |
| download | linux-dm-04e260948a160d3b7d622bf4c8a96fa4577c09bd.tar.gz | |
ksmbd: don't align last entry offset in smb2 query directory
When checking smb2 query directory packets from other servers,
OutputBufferLength is different with ksmbd. Other servers add an unaligned
next offset to OutputBufferLength for the last entry.
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
| -rw-r--r-- | fs/ksmbd/smb2pdu.c | 7 | ||||
| -rw-r--r-- | fs/ksmbd/vfs.h | 1 |
2 files changed, 5 insertions, 3 deletions
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index 6806994383d929..67e8e28e3fc352 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -3422,9 +3422,9 @@ static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level, goto free_conv_name; } - struct_sz = readdir_info_level_struct_sz(info_level); - next_entry_offset = ALIGN(struct_sz - 1 + conv_len, - KSMBD_DIR_INFO_ALIGNMENT); + struct_sz = readdir_info_level_struct_sz(info_level) - 1 + conv_len; + next_entry_offset = ALIGN(struct_sz, KSMBD_DIR_INFO_ALIGNMENT); + d_info->last_entry_off_align = next_entry_offset - struct_sz; if (next_entry_offset > d_info->out_buf_len) { d_info->out_buf_len = 0; @@ -3976,6 +3976,7 @@ int smb2_query_dir(struct ksmbd_work *work) ((struct file_directory_info *) ((char *)rsp->Buffer + d_info.last_entry_offset)) ->NextEntryOffset = 0; + d_info.data_count -= d_info.last_entry_off_align; rsp->StructureSize = cpu_to_le16(9); rsp->OutputBufferOffset = cpu_to_le16(72); diff --git a/fs/ksmbd/vfs.h b/fs/ksmbd/vfs.h index adf94a4f22fa6d..8c37aaf936ab11 100644 --- a/fs/ksmbd/vfs.h +++ b/fs/ksmbd/vfs.h @@ -47,6 +47,7 @@ struct ksmbd_dir_info { int last_entry_offset; bool hide_dot_file; int flags; + int last_entry_off_align; }; struct ksmbd_readdir_data { |