diff options
| -rw-r--r-- | fs/cifs/smb2misc.c | 37 | ||||
| -rw-r--r-- | fs/cifs/smb2pdu.c | 2 | ||||
| -rw-r--r-- | fs/cifs/smb2proto.h | 3 |
3 files changed, 22 insertions, 20 deletions
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index 2e92b2df3675..2f1db5af7a65 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -295,15 +295,14 @@ static const bool has_smb2_data_area[NUMBER_OF_SMB2_COMMANDS] = { * area and the offset to it (from the beginning of the smb are also returned. */ char * -smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr) +smb2_get_data_area_len(int *off, int *len, struct smb2_sync_hdr *shdr) { - struct smb2_sync_hdr *shdr = get_sync_hdr(hdr); *off = 0; *len = 0; /* error responses do not have data area */ if (shdr->Status && shdr->Status != STATUS_MORE_PROCESSING_REQUIRED && - (((struct smb2_err_rsp *)hdr)->StructureSize) == + (((struct smb2_err_rsp *)shdr)->StructureSize) == SMB2_ERROR_STRUCTURE_SIZE2) return NULL; @@ -315,42 +314,44 @@ smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr) switch (shdr->Command) { case SMB2_NEGOTIATE: *off = le16_to_cpu( - ((struct smb2_negotiate_rsp *)hdr)->SecurityBufferOffset); + ((struct smb2_negotiate_rsp *)shdr)->SecurityBufferOffset); *len = le16_to_cpu( - ((struct smb2_negotiate_rsp *)hdr)->SecurityBufferLength); + ((struct smb2_negotiate_rsp *)shdr)->SecurityBufferLength); break; case SMB2_SESSION_SETUP: *off = le16_to_cpu( - ((struct smb2_sess_setup_rsp *)hdr)->SecurityBufferOffset); + ((struct smb2_sess_setup_rsp *)shdr)->SecurityBufferOffset); *len = le16_to_cpu( - ((struct smb2_sess_setup_rsp *)hdr)->SecurityBufferLength); + ((struct smb2_sess_setup_rsp *)shdr)->SecurityBufferLength); break; case SMB2_CREATE: *off = le32_to_cpu( - ((struct smb2_create_rsp *)hdr)->CreateContextsOffset); + ((struct smb2_create_rsp *)shdr)->CreateContextsOffset); *len = le32_to_cpu( - ((struct smb2_create_rsp *)hdr)->CreateContextsLength); + ((struct smb2_create_rsp *)shdr)->CreateContextsLength); break; case SMB2_QUERY_INFO: *off = le16_to_cpu( - ((struct smb2_query_info_rsp *)hdr)->OutputBufferOffset); + ((struct smb2_query_info_rsp *)shdr)->OutputBufferOffset); *len = le32_to_cpu( - ((struct smb2_query_info_rsp *)hdr)->OutputBufferLength); + ((struct smb2_query_info_rsp *)shdr)->OutputBufferLength); break; case SMB2_READ: - *off = ((struct smb2_read_rsp *)hdr)->DataOffset; - *len = le32_to_cpu(((struct smb2_read_rsp *)hdr)->DataLength); + /* TODO: is this a bug ? */ + *off = ((struct smb2_read_rsp *)shdr)->DataOffset; + *len = le32_to_cpu(((struct smb2_read_rsp *)shdr)->DataLength); break; case SMB2_QUERY_DIRECTORY: *off = le16_to_cpu( - ((struct smb2_query_directory_rsp *)hdr)->OutputBufferOffset); + ((struct smb2_query_directory_rsp *)shdr)->OutputBufferOffset); *len = le32_to_cpu( - ((struct smb2_query_directory_rsp *)hdr)->OutputBufferLength); + ((struct smb2_query_directory_rsp *)shdr)->OutputBufferLength); break; case SMB2_IOCTL: *off = le32_to_cpu( - ((struct smb2_ioctl_rsp *)hdr)->OutputOffset); - *len = le32_to_cpu(((struct smb2_ioctl_rsp *)hdr)->OutputCount); + ((struct smb2_ioctl_rsp *)shdr)->OutputOffset); + *len = le32_to_cpu( + ((struct smb2_ioctl_rsp *)shdr)->OutputCount); break; case SMB2_CHANGE_NOTIFY: default: @@ -411,7 +412,7 @@ smb2_calc_size(void *buf, struct TCP_Server_Info *srvr) if (has_smb2_data_area[le16_to_cpu(shdr->Command)] == false) goto calc_size_exit; - smb2_get_data_area_len(&offset, &data_length, (struct smb2_hdr *)buf); + smb2_get_data_area_len(&offset, &data_length, shdr); cifs_dbg(FYI, "SMB2 data length %d offset %d\n", data_length, offset); if (data_length > 0) { diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 35fbd9261ca0..21b69badcd31 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -767,7 +767,7 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses) server->capabilities |= SMB2_NT_FIND | SMB2_LARGE_FILES; security_blob = smb2_get_data_area_len(&blob_offset, &blob_length, - &rsp->hdr); + &rsp->hdr.sync_hdr); /* * See MS-SMB2 section 2.2.4: if no blob, client picks default which * for us will be diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 4b0db6af7fe7..908555b1c6b5 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -37,7 +37,8 @@ extern int map_smb2_to_linux_error(char *buf, bool log_err); extern int smb2_check_message(char *buf, unsigned int length, struct TCP_Server_Info *server); extern unsigned int smb2_calc_size(void *buf, struct TCP_Server_Info *server); -extern char *smb2_get_data_area_len(int *off, int *len, struct smb2_hdr *hdr); +extern char *smb2_get_data_area_len(int *off, int *len, + struct smb2_sync_hdr *shdr); extern __le16 *cifs_convert_path_to_utf16(const char *from, struct cifs_sb_info *cifs_sb); |