102 lines
2.8 KiB
C
102 lines
2.8 KiB
C
/* $NetBSD: at_proto.c,v 1.23 2022/09/03 01:48:22 thorpej Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1990,1991 Regents of The University of Michigan.
|
|
* All Rights Reserved.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software and
|
|
* its documentation for any purpose and without fee is hereby granted,
|
|
* provided that the above copyright notice appears in all copies and
|
|
* that both that copyright notice and this permission notice appear
|
|
* in supporting documentation, and that the name of The University
|
|
* of Michigan not be used in advertising or publicity pertaining to
|
|
* distribution of the software without specific, written prior
|
|
* permission. This software is supplied as is without expressed or
|
|
* implied warranties of any kind.
|
|
*
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
*
|
|
* Research Systems Unix Group
|
|
* The University of Michigan
|
|
* c/o Wesley Craig
|
|
* 535 W. William Street
|
|
* Ann Arbor, Michigan
|
|
* +1-313-764-2278
|
|
* netatalk@umich.edu
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: at_proto.c,v 1.23 2022/09/03 01:48:22 thorpej Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/domain.h>
|
|
#include <sys/socket.h>
|
|
|
|
#include <sys/kernel.h>
|
|
#include <net/if.h>
|
|
#include <net/if_ether.h>
|
|
#include <netinet/in.h>
|
|
#include <net/route.h>
|
|
|
|
#include <netatalk/at.h>
|
|
#include <netatalk/ddp.h>
|
|
#include <netatalk/at_var.h>
|
|
#include <netatalk/ddp_var.h>
|
|
#include <netatalk/at_extern.h>
|
|
|
|
DOMAIN_DEFINE(atalkdomain); /* forward declare and add to link set */
|
|
|
|
const struct protosw atalksw[] = {
|
|
{
|
|
.pr_type = SOCK_DGRAM,
|
|
.pr_domain = &atalkdomain,
|
|
.pr_protocol = ATPROTO_DDP,
|
|
.pr_flags = PR_ATOMIC|PR_ADDR,
|
|
.pr_usrreqs = &ddp_usrreqs,
|
|
.pr_init = ddp_init,
|
|
},
|
|
};
|
|
|
|
struct domain atalkdomain = {
|
|
.dom_family = PF_APPLETALK,
|
|
.dom_name = "appletalk",
|
|
.dom_init = NULL,
|
|
.dom_externalize = NULL,
|
|
.dom_dispose = NULL,
|
|
.dom_protosw = atalksw,
|
|
.dom_protoswNPROTOSW = &atalksw[__arraycount(atalksw)],
|
|
.dom_rtattach = rt_inithead,
|
|
.dom_rtoffset = 32,
|
|
.dom_maxrtkey = sizeof(struct sockaddr_at),
|
|
.dom_ifattach = NULL,
|
|
.dom_ifdetach = NULL,
|
|
.dom_link = { NULL },
|
|
.dom_mowner = MOWNER_INIT("",""),
|
|
.dom_sa_cmpofs = offsetof(struct sockaddr_at, sat_addr),
|
|
.dom_sa_cmplen = sizeof(struct at_addr),
|
|
};
|
|
|
|
int
|
|
sockaddr_at_cmp(const struct sockaddr *sa1, const struct sockaddr *sa2)
|
|
{
|
|
int rc;
|
|
uint_fast8_t len;
|
|
const uint_fast8_t addrofs = offsetof(struct sockaddr_at, sat_addr),
|
|
addrend = addrofs + sizeof(struct at_addr);
|
|
const struct sockaddr_at *sat1, *sat2;
|
|
|
|
sat1 = satocsat(sa1);
|
|
sat2 = satocsat(sa2);
|
|
|
|
len = MIN(addrend, MIN(sat1->sat_len, sat2->sat_len));
|
|
|
|
if (len > addrofs &&
|
|
(rc = memcmp(&sat1->sat_addr, &sat2->sat_addr, len - addrofs)) != 0)
|
|
return rc;
|
|
|
|
return sat1->sat_len - sat2->sat_len;
|
|
}
|