Here is a list of all documented files with brief descriptions:

include
bdsm
netbios_ns.h	Netbios name service
smb_defs.h	SMB usefull constants
smb_dir.h	Directory operations
smb_file.h	File operations
smb_session.h	Functions to connect and authenticate to an SMB server
smb_share.h	List and connect to SMB shares
smb_stat.h	File status / listing
smb_types.h	LiBDSM types and structures