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Data Structures
struct	protosw

Macros
#define	PR_SLOWHZ 2L /* 2 slow timeouts per second */

#define	PR_FASTHZ 5L /* 5 fast timeouts per second */

#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_IMPLOPCL 0x20 /* implied open/close */

#define	PR_LASTHDR 0x40 /* enforce ipsec policy; last header */

#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 */

#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_SEND_EOF 22 /* send and close */

#define	PRU_NREQ 22

#define	PRC_IFDOWN 0 /* interface transition */

#define	PRC_ROUTEDEAD 1 /* select new route if possible ??? */

#define	PRC_IFUP 2 /* interface has come back up */

#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 # */

#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_UNREACH_ADMIN_PROHIB 21 /* packet administrativly prohibited */

#define	PRC_NCMDS 22

#define	PRC_IS_REDIRECT(cmd) ((cmd) >= PRC_REDIRECT_NET && (cmd) <= PRC_REDIRECT_TOSHOST)

#define	PRCO_GETOPT 0

#define	PRCO_SETOPT 1

#define	PRCO_NCMDS 2

Data Structures

Macros