Socket types
enum sock_type {
SOCK_STREAM,
SOCK_DGRAM,
SOCK_RAW,
SOCK_RDM,
SOCK_SEQPACKET,
SOCK_DCCP,
SOCK_PACKET
};
SOCK_STREAM
stream (connection) socket
SOCK_DGRAM
datagram (conn.less) socket
SOCK_RAW
raw socket
SOCK_RDM
reliably-delivered message
SOCK_SEQPACKET
sequential packet socket
SOCK_DCCP
Datagram Congestion Control Protocol socket
SOCK_PACKET
linux specific way of getting packets at the dev level. For writing rarp and other similar things on the user level.
When adding some new socket type please grep ARCH_HAS_SOCKET_TYPE include/asm-* /socket.h, at least MIPS overrides this enum for binary compat reasons.