diff options
Diffstat (limited to 'fs/cifs/smb2misc.c')
| -rw-r--r-- | fs/cifs/smb2misc.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index 3ff7cec2da81..db0453660ff6 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -93,7 +93,6 @@ static const __le16 smb2_rsp_struct_sizes[NUMBER_OF_SMB2_COMMANDS] = { /* SMB2_OPLOCK_BREAK */ cpu_to_le16(24) }; -#ifdef CONFIG_CIFS_SMB311 static __u32 get_neg_ctxt_len(struct smb2_sync_hdr *hdr, __u32 len, __u32 non_ctxlen) { @@ -127,7 +126,6 @@ static __u32 get_neg_ctxt_len(struct smb2_sync_hdr *hdr, __u32 len, /* length of negcontexts including pad from end of sec blob to them */ return (len - nc_offset) + size_of_pad_before_neg_ctxts; } -#endif /* CIFS_SMB311 */ int smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr) @@ -222,10 +220,9 @@ smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr) clc_len = smb2_calc_size(buf, srvr); -#ifdef CONFIG_CIFS_SMB311 if (shdr->Command == SMB2_NEGOTIATE) clc_len += get_neg_ctxt_len(shdr, len, clc_len); -#endif /* SMB311 */ + if (len != clc_len) { cifs_dbg(FYI, "Calculated size %u length %u mismatch mid %llu\n", clc_len, len, mid); @@ -241,6 +238,13 @@ smb2_check_message(char *buf, unsigned int len, struct TCP_Server_Info *srvr) return 0; /* + * Some windows servers (win2016) will pad also the final + * PDU in a compound to 8 bytes. + */ + if (((clc_len + 7) & ~7) == len) + return 0; + + /* * MacOS server pads after SMB2.1 write response with 3 bytes * of junk. Other servers match RFC1001 len to actual * SMB2/SMB3 frame length (header + smb2 response specific data) @@ -451,15 +455,13 @@ cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb) /* Windows doesn't allow paths beginning with \ */ if (from[0] == '\\') start_of_path = from + 1; -#ifdef CONFIG_CIFS_SMB311 + /* SMB311 POSIX extensions paths do not include leading slash */ else if (cifs_sb_master_tlink(cifs_sb) && cifs_sb_master_tcon(cifs_sb)->posix_extensions && (from[0] == '/')) { start_of_path = from + 1; - } -#endif /* 311 */ - else + } else start_of_path = from; to = cifs_strndup_to_utf16(start_of_path, PATH_MAX, &len, @@ -759,7 +761,6 @@ smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server) return 0; } -#ifdef CONFIG_CIFS_SMB311 /** * smb311_update_preauth_hash - update @ses hash with the packet data in @iov * @@ -821,4 +822,3 @@ smb311_update_preauth_hash(struct cifs_ses *ses, struct kvec *iov, int nvec) return 0; } -#endif |