void* buffer

A (VECTOR (UNSIGNED-BYTE 8)). The vector may be adjustable and have a fill pointer. Whenever a function accepts a buffer argument, it also accepts :START and :END keyword arguments with the usual meaning and defaults. You do not have to supply the vector length because Lisp can determine it itself, but, if you want to, you can use :END argument for that.

int socket

An INTEGER (returned by socketpair or socket).

int family
int domain

A NIL (stands for AF_UNSPEC), INTEGER, or a platform-specific keyword, e.g., :INET stands for AF_INET.

int type

A NIL (stands for 0); INTEGER; or a platform-specific keyword, e.g., :DGRAM stands for SOCK_DGRAM.

int protocol

A NIL (stands for 0); INTEGER; a platform-specific keyword, e.g., :ETH_P_ARP stands for ETH_P_ARP, :IPPROTO-ICMP stands for IPPROTO_ICMP; or a STRING (passed to getprotobyname).

int flags

This C argument corresponds to keyword arguments to the Lisp functions. E.g., rawsock:send accepts :OOB and EOR arguments, while rawsock:recv accepts PEEK, OOB and WAITALL.

struct sockaddr address

A STRUCTURE-OBJECT RAWSOCK:SOCKADDR returned by MAKE-SOCKADDR. You do not need to supply its length because Lisp can determine it itself.

struct msghdr message

A STRUCTURE-OBJECT RAWSOCK:MESSAGE with the following slots:

addr	a SOCKADDR.
iovec	a (VECTOR (VECTOR (UNSIGNED-BYTE 8))) (:START and :END arguments are applied to this vector)
control	a (VECTOR (UNSIGNED-BYTE 8))
flags	a LIST

Functions that do not correspond to a single system call

(RAWSOCK:SOCK-READ socket buffer &KEY start end)
(RAWSOCK:SOCK-WRITE socket buffer &KEY start end)

Call one of read/readv or write/writev (depending on whether buffer is a (VECTOR (UNSIGNED-BYTE 8)) or a (VECTOR (VECTOR (UNSIGNED-BYTE 8)))). Return the number of bytes read or written.

When readv and writev and not available, they are emulated by repeated calls to read and write.

On Win32 we have to use recv instead of read and send instead of write because Win32 read and write do not work on sockets, only on regular files.

(RAWSOCK:PROTOCOL &OPTIONAL protocol)

Call getprotobyname when protocol is a STRING, or call getprotobynumber when protocol is an INTEGER. Return a RAWSOCK:PROTOCOL structure object. When protocol is NIL, return a LIST of all known protocols using setprotoent, getprotoent, and endprotoent.

(RAWSOCK:NETWORK &OPTIONAL network type)

Call getnetbyname when network is a STRING, or call getnetbyaddr when network is an INTEGER. Return a RAWSOCK:NETWORK structure object. When network is NIL, return a LIST of all known networks using setnetent, getnetent, and endnetent.

(RAWSOCK:IF-NAME-INDEX &OPTIONAL what)

Call if_nametoindex when what is a STRING and return an INTEGER; or call if_indextoname when what is an INTEGER and return a STRING. When what is NIL, return an association list of pairs (index . name) using if_nameindex.

(RAWSOCK:IFADDRS &KEY :FLAGS-OR :FLAGS-AND)

Call getifaddrs and return a LIST of ifaddrs objects, optionally filtered using flags, e.g., (ifaddrs :flags-or '(a b) :flags-and '(c d)) will return a list of objects which have flags c and d and at least one of a or b set.

(RAWSOCK:SOCKET-OPTION socket name &KEY :LEVEL)
(SETF (RAWSOCK:SOCKET-OPTION socket name &KEY :LEVEL) value)

Call getsockopt and setsockopt, returns and sets individual (for specific option name and level) and multiple (when name is NIL and/or level is :ALL) options. (See also SOCKET:SOCKET-OPTIONS.)

(RAWSOCK:CONVERT-ADDRESS family address)

Convert between STRING and INTEGER IP address representations using

inet_addr	inet_ntop
inet_ntoa	inet_pton

(RAWSOCK:MAKE-SOCKADDR family &OPTIONAL data)

Create a sockaddr object. data should be a sequence of (UNSIGNED-BYTE 8) or an INTEGER (meaning (MAKE-LIST data :initial-element 0)). When omitted, the standard platform-specific size is used.

(RAWSOCK:SOCKADDR-FAMILY address)

Return the symbolic family of the sockaddr object.

(RAWSOCK:SOCKADDR-DATA address)

Return a fresh VECTOR displaced to the data field of the C struct sockaddr object.

Warning

Modifying this VECTOR's content will modify the address argument data!

(RAWSOCK:OPEN-UNIX-SOCKET pathname &OPTIONAL (type :STREAM))

Open a UNIX socket special file. Returns two values: socket and address.

(RAWSOCK:OPEN-UNIX-SOCKET-STREAM pathname &REST options &KEY (type :STREAM) &ALLOW-OTHER-KEYS)

Open a UNIX socket special file. Returns two values: stream and address. type is passed to RAWSOCK:OPEN-UNIX-SOCKET, other options to EXT:MAKE-STREAM (but see Do not use EXT:MAKE-STREAM!).

(RAWSOCK:IPCSUM buffer &KEY start end) - IP
(RAWSOCK:ICMPCSUM buffer &KEY start end) - ICMP
(RAWSOCK:TCPCSUM buffer &KEY start end) - TCP
(RAWSOCK:UDPCSUM buffer &KEY start end) - UDP

Compute the appropriate protocol checksum and record it in the appropriate location. buffer is assumed to be a suitable ethernet frame for the protocol, with the appropriate header etc.

Note that buffer is an ethernet frame, starting with 6 bytes of the destination MAC address, 6 bytes of the source MAC address, and 2 bytes specifying the next level protocol, (e.g., #x0800 for IP and #x0806 for ARP), i.e., the first 14 bytes of buffer are ignored by these functions.

A typical packet you send is both IP and TCP and thus has two checksums, so you would want to call two functions.

(RAWSOCK:CONFIGDEV socket ifname address &KEY promisc noarp)

Set some socket options and IP address with ioctl.