/* protosw.h */ #ifndef _SYS_PROTOSW_H #define _SYS_PROTOSW_H #include /* for struct socket */ #include #define PRCO_SETOPT 0 #define PRCO_GETOPT 1 /* every protocol module init's one of these and passes it into * the add_protocol() function, defined below */ /* NB The pr_domain pointer will be filled in during the * add_protocol() call */ struct protosw { char *name; char *mod_path; uint16 pr_type; /* SOCK_xxx */ struct domain *pr_domain; uint16 pr_protocol; /* protocol number */ uint16 pr_flags; /* flags, PR_xxx */ int layer; /* which layer are we? */ /* the functions! */ void (*pr_init)(void); void (*pr_input)(struct mbuf*, int); int (*pr_output)(struct mbuf *, struct mbuf *, struct route *, int, void *); int (*pr_userreq)(struct socket *, int, struct mbuf *, struct mbuf *, struct mbuf *); int (*pr_sysctl)(int *, uint, void *, size_t *, void *, size_t); void (*pr_ctlinput)(int, struct sockaddr *, void *); int (*pr_ctloutput)(int, struct socket*, int, int, struct mbuf **); struct protosw *pr_next; /* pointer to next proto structure */ struct protosw *dom_next; /* next protosw pointed by the domain */ }; /* * Values for pr_flags. * PR_ADDR requires PR_ATOMIC; * PR_ADDR and PR_CONNREQUIRED are mutually exclusive. */ #define PR_ATOMIC 0x01 /* exchange atomic messages only */ #define PR_ADDR 0x02 /* addresses given with messages */ #define PR_CONNREQUIRED 0x04 /* connection required by protocol */ #define PR_WANTRCVD 0x08 /* want PRU_RCVD calls */ #define PR_RIGHTS 0x10 /* passes capabilities */ #define PR_ABRTACPTDIS 0x20 /* abort on accept(2) to disconnected socket */ #define PR_SLOWHZ 2 /* 2 timeouts per second... */ #define PR_FASTHZ 5 /* 5 timeouts per second */ /* * Defines for the userreq function req field are below. * * (*usrreq)(up, req, m, nam, opt); * * up is a (struct socket *) * req is one of these requests, * m is a optional mbuf chain containing a message, * nam is an optional mbuf chain containing an address, * opt is a pointer to a socketopt structure or nil. * * The protocol is responsible for disposal of the mbuf chain m, * the caller is responsible for any space held by nam and opt. * A non-zero return from usrreq gives an * UNIX error number which should be passed to higher level software. */ #define PRU_ATTACH 0 /* attach protocol to up */ #define PRU_DETACH 1 /* detach protocol from up */ #define PRU_BIND 2 /* bind socket to address */ #define PRU_LISTEN 3 /* listen for connection */ #define PRU_CONNECT 4 /* establish connection to peer */ #define PRU_ACCEPT 5 /* accept connection from peer */ #define PRU_DISCONNECT 6 /* disconnect from peer */ #define PRU_SHUTDOWN 7 /* won't send any more data */ #define PRU_RCVD 8 /* have taken data; more room now */ #define PRU_SEND 9 /* send this data */ #define PRU_ABORT 10 /* abort (fast DISCONNECT, DETATCH) */ #define PRU_CONTROL 11 /* control operations on protocol */ #define PRU_SENSE 12 /* return status into m */ #define PRU_RCVOOB 13 /* retrieve out of band data */ #define PRU_SENDOOB 14 /* send out of band data */ #define PRU_SOCKADDR 15 /* fetch socket's address */ #define PRU_PEERADDR 16 /* fetch peer's address */ #define PRU_CONNECT2 17 /* connect two sockets */ /* begin for protocols internal use */ #define PRU_FASTTIMO 18 /* 200ms timeout */ #define PRU_SLOWTIMO 19 /* 500ms timeout */ #define PRU_PROTORCV 20 /* receive from below */ #define PRU_PROTOSEND 21 /* send to below */ #define PRU_PEEREID 22 /* get local peer eid */ #define PRU_NREQ 22 /* * The arguments to the ctlinput routine are * (*protosw[].pr_ctlinput)(cmd, sa, arg); * where cmd is one of the commands below, sa is a pointer to a sockaddr, * and arg is an optional caddr_t argument used within a protocol family. */ #define PRC_IFDOWN 0 /* interface transition */ #define PRC_ROUTEDEAD 1 /* select new route if possible ??? */ #define PRC_MTUINC 2 /* increase in mtu to host */ #define PRC_QUENCH2 3 /* DEC congestion bit says slow down */ #define PRC_QUENCH 4 /* some one said to slow down */ #define PRC_MSGSIZE 5 /* message size forced drop */ #define PRC_HOSTDEAD 6 /* host appears to be down */ #define PRC_HOSTUNREACH 7 /* deprecated (use PRC_UNREACH_HOST) */ #define PRC_UNREACH_NET 8 /* no route to network */ #define PRC_UNREACH_HOST 9 /* no route to host */ #define PRC_UNREACH_PROTOCOL 10 /* dst says bad protocol */ #define PRC_UNREACH_PORT 11 /* bad port # */ /* was PRC_UNREACH_NEEDFRAG 12 (use PRC_MSGSIZE) */ #define PRC_UNREACH_SRCFAIL 13 /* source route failed */ #define PRC_REDIRECT_NET 14 /* net routing redirect */ #define PRC_REDIRECT_HOST 15 /* host routing redirect */ #define PRC_REDIRECT_TOSNET 16 /* redirect for type of service & net */ #define PRC_REDIRECT_TOSHOST 17 /* redirect for tos & host */ #define PRC_TIMXCEED_INTRANS 18 /* packet lifetime expired in transit */ #define PRC_TIMXCEED_REASS 19 /* lifetime expired on reass q */ #define PRC_PARAMPROB 20 /* header incorrect */ #define PRC_NCMDS 21 #define PRC_IS_REDIRECT(cmd) \ ((cmd) >= PRC_REDIRECT_NET && (cmd) <= PRC_REDIRECT_TOSHOST) /* Network stack defines... */ #ifdef _KERNEL_MODE struct protosw *protocols; enum { NET_LAYER1 = 1, NET_LAYER2, NET_LAYER3, NET_LAYER4 }; //XXX conflicts with src/add-ons/kernel/network/core/core.c:69 // void add_protosw (struct protosw *prt[], int); void add_protocol (struct protosw *, int); void remove_protocol (struct protosw *); #endif struct protosw *pffindproto(int domain, int protocol, int type); struct protosw *pffindtype(int domain, int type); #endif /* _SYS_PROTOSW_H */