[apple/xnu.git] / bsd / netat / at.c

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,
 * unlawful or unlicensed copies of an Apple operating system, or to
 * circumvent, violate, or enable the circumvention or violation of, any
 * terms of an Apple operating system software license agreement.
 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 */
/*
 *	Copyright (c) 1998 Apple Computer, Inc. 
 */

/*	at.c
 */

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/errno.h>
#include <sys/malloc.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/file.h>
#include <sys/kauth.h>

#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/dlil.h>

#include <netat/appletalk.h>
#include <netat/sysglue.h>
#include <netat/at_pcb.h>
#include <netat/at_var.h>
#include <netat/ddp.h>
#include <netat/nbp.h>
#include <netat/routing_tables.h>
#include <netat/debug.h>

#include <sys/kern_event.h>

extern int at_ioctl(struct atpcb *, u_long, caddr_t, int fromKernel);
extern int routerStart(at_kern_err_t *);
extern void elap_offline(at_ifaddr_t *);
extern at_ifaddr_t *find_ifID(char *);
extern at_nvestr_t *getRTRLocalZone(zone_usage_t *);
extern int setLocalZones(at_nvestr_t *, int);

extern int xpatcnt;
extern at_ifaddr_t at_interfaces[];
extern at_ifaddr_t *ifID_home;
extern TAILQ_HEAD(name_registry, _nve_) name_registry;
extern int nve_lock;

struct  etalk_addr      etalk_multicast_addr = {
  {0x09, 0x00, 0x07, 0xff, 0xff, 0xff}};
struct  etalk_addr      ttalk_multicast_addr = {
  {0xC0, 0x00, 0x40, 0x00, 0x00, 0x00}};

/* called only in router mode */
static int set_zones(ifz)
	zone_usage_t *ifz;

/* 1. adds zone to table
   2. looks up each route entry from zone list
   3. sets zone bit in each route entry

   returns  0 if successful
	    errno if error occurred
*/
{
	int i;
	at_ifaddr_t *ifID;
	short zno;
	RT_entry *rte;

	zno = zt_add_zone(ifz->zone_name.str, ifz->zone_name.len);

	if (zno == ZT_MAXEDOUT) {
		dPrintf(D_M_ELAP, D_L_ERROR, ("set_zones: error: table full\n"));
		return(ENOSPC);
	}
	if (ifz->zone_home) {
		ifID_home->ifZoneName = ifz->zone_name;
		ifID_home->ifDefZone = zno;
	}

	for (i=0; i<IF_TOTAL_MAX; i++)  {
		if (ifz->zone_iflist.at_if[i][0]) {  
			if ((ifID = find_ifID(ifz->zone_iflist.at_if[i]))) {
				rte = rt_blookup(ifID->ifThisCableEnd);
				if (!rte) {
					dPrintf(D_M_ELAP, D_L_ERROR,
						("set_zones: error: can't find route\n"));
				} else {
					zt_set_zmap(zno, rte->ZoneBitMap); 

					/* if first zone for this I/F, 
					   make default */
					if (!ifID->ifDefZone)
						ifID->ifDefZone = zno;
				}
			}
		}
	}

	return(0);
} /* set_zones */

/*
  * Generic internet control operations (ioctl's).
  * ifp is 0 if not an interface-specific ioctl.
  */

int
at_control(so, cmd, data, ifp)
     struct socket *so;
     u_long cmd;
     caddr_t data;
     struct ifnet *ifp;
{
	struct ifreq *ifr = (struct ifreq *)data;
	int pat_id = 0, error = 0;
	struct proc *p = current_proc();       
	at_ifaddr_t *ifID = 0;
	struct ifaddr *ifa;
	struct sockaddr_dl *sdl;

    if ((cmd & 0xffff) == 0xff99) {
		u_long 	fixed_command;
		char ioctl_buffer[32];
		/* *** this is a temporary hack to get at_send_to_dev() to
		   work with BSD-style sockets instead of the special purpose 
		   system calls, ATsocket() and ATioctl().
		   *** */
		fixed_command = _IOW(0, 0xff99, user_addr_t); 
		if ((error = at_ioctl((struct atpcb *)so->so_pcb, fixed_command, data, 0))) {
		  if (((struct atpcb *)so->so_pcb)->proto != ATPROTO_LAP) {
		    ((struct atpcb *)so->so_pcb)->proto = ATPROTO_LAP;
		    error = at_ioctl((struct atpcb *)so->so_pcb, fixed_command, data , 0);
		  }
		}
		return(error);

		/* *** processing should be
		   return(EINVAL);
		   *** */
	}
        /*
	 * Find address for this interface, if it exists.
	 */
	if (ifp)
		for (pat_id = 0; pat_id < xpatcnt; pat_id++)
		  if (at_interfaces[pat_id].aa_ifp == ifp) {
			ifID = &at_interfaces[pat_id];
			break;
		  }
	
	switch (cmd) {

	case AIOCGETSTATE:
	  {
	  	at_state_t *global_state = (at_state_t *)data;

		*global_state = at_state;
		return(0);
		break;
	  }

	case AIOCGETIFCFG:
	  {
	  	at_if_cfg_t *cfgp = (at_if_cfg_t *)data;

		ifID = 0;
		if ((at_state.flags & AT_ST_STARTED) &&
		    ifID_home) {
			if (strlen(cfgp->ifr_name)) {
				TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
					if (!strncmp(ifID->ifName, cfgp->ifr_name, 
						     strlen(ifID->ifName)))
						break;
				}
			} else {
				ifID = ifID_home;
				strlcpy(cfgp->ifr_name, ifID->ifName, 
					sizeof(cfgp->ifr_name));
			}
			if  (ifID && ifID->ifState != LAP_OFFLINE) {
				cfgp->flags = ifID->ifFlags;
				/* put the IF state into the low order 
				   bits of flags */
				cfgp->flags |= (ifID->ifState & LAP_STATE_MASK);
				cfgp->node = ifID->ifThisNode;
				cfgp->router = ifID->ifARouter;
				cfgp->netStart = ifID->ifThisCableStart;
				cfgp->netEnd = ifID->ifThisCableEnd;
				cfgp->zonename = ifID->ifZoneName;
				return(0);
			} else
				return(EINVAL);
		} else
			return(ENOTREADY);
		break;
	  }

	case AIOCSETDEFZONE:
	  {
	  	at_def_zone_t *defzonep = (at_def_zone_t *)data;

		/* check for root access */
		if (error = suser(kauth_cred_get(), 0))
			return(EACCES);

		ifID = 0;
		if ((at_state.flags & AT_ST_STARTED) && ifID_home) {
			if (strlen(defzonep->ifr_name)) {
			    TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
				if (!strncmp(ifID->ifName, defzonep->ifr_name, 
					     strlen(ifID->ifName)))
				    break;
			    }
			} else {
				ifID = ifID_home;
				strlcpy(defzonep->ifr_name, ifID->ifName, 
					sizeof(defzonep->ifr_name));
			}

			/* In routing mode the default zone is only set for the 
			   default interface. */
			if (ROUTING_MODE && (ifID != ifID_home))
				return(EINVAL);

			if  (ifID && ifID->ifState != LAP_OFFLINE) {
				if (zonename_equal(&ifID->ifZoneName, 
						   &defzonep->zonename)) 
					return(0);
				else {
					/* check the zone name */
					if (MULTIPORT_MODE) {
					  short zno;
					  at_ifnames_t ifs_in_zone;

					  if (!(zno = zt_find_zname(&defzonep->zonename)))
					    return(EINVAL);

					  getIfUsage(zno-1, &ifs_in_zone);
					  if (!ifs_in_zone.at_if[ifID->ifPort]) 
					    return(EINVAL);
					  ifID->ifDefZone = zno+1;
					} else {
					  int i;
					  at_nvestr_t *zone;

					  for (i = 0, zone = getSPLocalZone(i); 
					       zone; 
					       i++, zone = getSPLocalZone(i)) {
					    if (zonename_equal(zone, 
							       &defzonep->zonename))
					      break;
					  }
					  if (!zone)
					    return(EINVAL);
					}
					ifID->ifZoneName = defzonep->zonename;
					(void)regDefaultZone(ifID);

					/* AppleTalk zone was changed. Send event with zone info. */
					atalk_post_msg(ifID->aa_ifp, KEV_ATALK_ZONEUPDATED, 0, &(ifID->ifZoneName));

					return(0);
				}
			} else
				return(EINVAL);
		} else
			return(ENOTREADY);
		break;
	  }

	case AIOCREGLOCALZN:
	  {
		at_nvestr_t *zone = (at_nvestr_t *)data;

		if (!(at_state.flags & AT_ST_STARTED) || !ifID_home)
			return(ENOTREADY);

		if (MULTIPORT_MODE)
			return(EINVAL);

		return(setLocalZones(zone, zone->len));

		break;
	  }
	case AIOCSETZNUSAGE:
		if (!(at_state.flags & AT_ST_STARTED) || !ifID_home)
			return(ENOTREADY);

		if (!ROUTING_MODE)
			return(EINVAL);

		return(set_zones((zone_usage_t *)data));

		break;

	case AIOCGETZNUSAGE:
		if (!(at_state.flags & AT_ST_STARTED) || !ifID_home)
			return(ENOTREADY);

		if (!MULTIPORT_MODE)
			return(EINVAL);

		if (getRTRLocalZone((zone_usage_t *)data))
			return(0);
		else
			return(ENOENT);
		break;

	case AIOCNBPREG:
	  {
	  	at_nbp_reg_t *nbpP = (at_nbp_reg_t *)data;
		nve_entry_t nve;
		int error2;

		if (!(at_state.flags & AT_ST_STARTED) || !ifID_home)
			return(ENOTREADY);

		/* multihoming mode */
		if (MULTIHOME_MODE) {
			return(nbp_mh_reg(nbpP));
		}

		/* single port mode or router mode */
		if (nbp_fillin_nve(&nbpP->name, &nve) != 0) {
			/* bad tuple... */
			return(EINVAL);
		}

		/* In routing mode when the zone is specified, we need to 
		   find an interface on which the specified zone is seeded, so
		   that the zone multicast will be plausible. */
		if (ROUTING_MODE && !(DEFAULT_ZONE(&nve.zone))) {
		        /* find first segment (interface) which is seeded for 
			   this zone */
			int finished = FALSE;
			int zno;
			at_ifnames_t ifs_in_zone;
			if (!(zno = zt_find_zname(&nve.zone))) {
				return(EINVAL);
			}
			getIfUsage(zno-1, &ifs_in_zone);

			TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
				if (!ifs_in_zone.at_if[ifID->ifPort]) 
						/* zone doesn't match */
					continue;
				else {
					finished = TRUE;
					break;
				}
			}
			if (!finished)
				return(EINVAL);
		} else 
			ifID = ifID_home;

		nve.address.net = ifID->ifThisNode.s_net;
		nve.address.node = ifID->ifThisNode.s_node;
		nve.address.socket = nbpP->addr.socket;
		nve.ddptype = nbpP->ddptype;

		if (nbp_find_nve(&nve))
			return(EADDRNOTAVAIL);

		/* Normal case; no tuple found for this name, so insert
		 * this tuple in the registry and return ok response.
		 */
		ATDISABLE(nve_lock, NVE_LOCK);
		if ((error2 = nbp_new_nve_entry(&nve, ifID)) == 0) {
			nbpP->addr.net = ifID->ifThisNode.s_net;
			nbpP->addr.node = ifID->ifThisNode.s_node;
			nbpP->unique_nbp_id = nve.unique_nbp_id;
		}
		ATENABLE(nve_lock, NVE_LOCK);

		return(error2);
		break;
	  }

	case AIOCNBPREMOVE:
	  {
	  	at_nbp_reg_t *nbpP = (at_nbp_reg_t *)data;
		nve_entry_t    *nve_entry, nve;

		if (!(at_state.flags & AT_ST_STARTED))
			return(ENOTREADY);

		/* delete by id */
		if (nbpP->unique_nbp_id) {
			ATDISABLE(nve_lock, NVE_LOCK);
			TAILQ_FOREACH(nve_entry, &name_registry, nve_link) {
				if (nve_entry->unique_nbp_id == nbpP->unique_nbp_id) {
					/* Found a match! */
					nbp_delete_entry(nve_entry);
					ATENABLE(nve_lock, NVE_LOCK);
					return(0);
				}
			}
			ATENABLE(nve_lock, NVE_LOCK);
			return(EADDRNOTAVAIL);
		}

		/* delete by entity */
		if (nbp_fillin_nve(&nbpP->name, &nve) != 0) {
			/* bad tuple... */
			return(EINVAL);
		}

		if (MULTIHOME_MODE && DEFAULT_ZONE(&nbpP->name.zone)) {
			/* if mhome & *, remove nve from all default zones */
			int found = FALSE;	/* if any found & deleted */

			TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
				nve.zone = ifID->ifZoneName;
				nve.zone_hash = nbp_strhash(&nve.zone);
				if ((nve_entry = nbp_find_nve(&nve)) == NULL) 
					continue;

				ATDISABLE(nve_lock, NVE_LOCK);
				nbp_delete_entry(nve_entry);
				ATENABLE(nve_lock, NVE_LOCK);
				found = TRUE;
			}
			if (found) 
				return(0);
			else
				return(EADDRNOTAVAIL);
		}

		if ((nve_entry = nbp_find_nve(&nve)) == NULL)
			/* Can't find the tuple we're looking for, send error*/
			return(EADDRNOTAVAIL);

		/* Normal case; tuple found for this name, so delete
		 * the entry from the registry and return ok response.
		 */
		ATDISABLE(nve_lock, NVE_LOCK);
		nbp_delete_entry(nve_entry);
		ATENABLE(nve_lock, NVE_LOCK);
		return(0);

		break;
	  }

	case AIOCSETROUTER:
	  {
	  	at_router_params_t *rt = (at_router_params_t *)data;

		/* check for root access */
		if (error = suser(kauth_cred_get(), 0))
			return(EACCES);

		/* when in routing/multihome mode the AIOCSETROUTER IOCTL 
		   is done first */
		if (at_state.flags & AT_ST_STARTED)
	    		return(EALREADY);

		/* Setup the routing & zip table size for the router */
		if (rt->rtmp_table_sz >= RT_MIN && rt->rtmp_table_sz <= RT_MAX)
                	RT_maxentry = rt->rtmp_table_sz;
		else
	                RT_maxentry = RT_DEFAULT;

		if (rt->zone_table_sz >= ZT_MIN && rt->zone_table_sz <= ZT_MAX)
			ZT_maxentry = rt->zone_table_sz;
		else
                	ZT_maxentry = ZT_DEFAULT;

		if (rt_table_init() == ENOBUFS)
			return(ENOBUFS);

		if (rt->router_mix)
			RouterMix = (int)rt->router_mix;
		else
			RouterMix = RT_MIX_DEFAULT;

		add_ddp_handler(RTMP_SOCKET, rtmp_router_input);

		if (rt->multihome)
                	at_state.flags |= AT_ST_MULTIHOME;
		else
			at_state.flags |= AT_ST_ROUTER;
		break;
	  }
	case AIOCSTARTROUTER:
	  {
	  	at_kern_err_t *keP = (at_kern_err_t *)data;

		/* check for root access */
		if (suser(kauth_cred_get(), 0))
			return(EACCES);

		if (!(at_state.flags & AT_ST_STARTED))
			return(ENOTREADY);

		bzero(keP, sizeof(at_kern_err_t));
		error = routerStart(keP);

		break;
	  }
	case AIOCGETROUTER:
	  {
	  	at_router_params_t *rt = (at_router_params_t *)data;

		if (!(at_state.flags & AT_ST_STARTED))
			return(ENOTREADY);

		rt->multihome = (MULTIHOME_MODE)? 1: 0;
		rt->rtmp_table_sz = RT_maxentry;
		rt->zone_table_sz = ZT_maxentry;
		rt->router_mix = RouterMix;

		break;
	  }
	case AIOCSTOPATALK:
	{
		int *count_only = (int *)data,
		    ret;

		/* check for root access */
		if (error = suser(kauth_cred_get(), 0))
			return(EACCES);

		ret = ddp_shutdown(*count_only);
		
		if (*count_only != 0) 
		{
			*count_only = ret;
			return(0);
		}
		else
		{
			if (ret == 0)
			{
				/* AppleTalk was successfully shut down. Send event. */
				atalk_post_msg(0, KEV_ATALK_DISABLED, 0, 0);
				return 0;
			}
			else
				return EBUSY;
		}

		break;
	}

	case SIOCSIFADDR:
		/* check for root access */
		if (error = suser(kauth_cred_get(), 0))
			error = EACCES;
		else if (ifID)
			error = EEXIST;
		else {
			int s;
			if (xpatcnt == 0) {
				at_state.flags |= AT_ST_STARTING;
				ddp_brt_init();
			}

			/* *** find an empty entry *** */
			ifID = &at_interfaces[xpatcnt];
			bzero((caddr_t)ifID, sizeof(at_ifaddr_t));
			strlcpy(ifID->ifName, ifr->ifr_name, sizeof(ifID->ifName));

			ifID->aa_ifp = ifp;
			ifa = &ifID->aa_ifa;
			ifnet_lock_exclusive(ifp);
			TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) 
				if ((sdl = (struct sockaddr_dl *)ifa->ifa_addr) &&
				      (sdl->sdl_family == AF_LINK)) {
				    bcopy(LLADDR(sdl), ifID->xaddr, sizeof(ifID->xaddr));
#ifdef APPLETALK_DEBUG
				    kprintf("SIOCSIFADDR: local enet address is %x.%x.%x.%x.%x.%x\n", 
					    ifID->xaddr[0], ifID->xaddr[1], 
					    ifID->xaddr[2], ifID->xaddr[3], 
					    ifID->xaddr[4], ifID->xaddr[5]);
#endif
				    break;
				  }

			/* attach the AppleTalk address to the ifnet structure */
			ifa = &ifID->aa_ifa;
			ifa->ifa_addr = (struct sockaddr *)&ifID->ifNodeAddress;
			ifID->ifNodeAddress.sat_len = sizeof(struct sockaddr_at);
			ifID->ifNodeAddress.sat_family =  AF_APPLETALK;
			/* the address itself will be filled in when ifThisNode
			   is set */
			if_attach_ifa(ifp, ifa);
			ifnet_lock_done(ifp);

			switch (ifp->if_type) {
			case IFT_ETHER:
                        case IFT_L2VLAN:
                        case IFT_IEEE8023ADLAG: /* bonded ethernet */
				ether_attach_at(ifp);
				error = 0;
				ifID->cable_multicast_addr = etalk_multicast_addr;

				xpatcnt++;
				break;
			case IFT_FDDI:
				ifID->cable_multicast_addr = etalk_multicast_addr;
				ddp_bit_reverse(&ifID->cable_multicast_addr);
				xpatcnt++;
				break;
			case IFT_ISO88025: /* token ring */	
				ifID->cable_multicast_addr = ttalk_multicast_addr;
				ddp_bit_reverse(&ifID->cable_multicast_addr);

				xpatcnt++;
				break;
			default:
				error = EINVAL;
			}
		}
	  break;

	/* complete the initialization started in SIOCSIFADDR */
	case AIOCSIFADDR:
	{
		at_if_cfg_t *cfgp = (at_if_cfg_t *)data;

		if (!(at_state.flags & AT_ST_STARTING))
			return(ENOTREADY);
 
		if (!(ifID = find_ifID(cfgp->ifr_name)))
			return(EINVAL);
		
		return(lap_online(ifID, cfgp));
		break;
	}

#ifdef NOT_YET
	/* *** this can't be added until AT can handle dynamic addition and
	       deletion of interfaces *** */
	case SIOCDIFADDR:
		/* check for root access */
		if (error = suser(kauth_cred_get(), 0))
			error = EACCES;
		else if (!ifID) 
			error = EINVAL;
		else
			elap_offline(ifID);
		break;
#endif

    case SIOCSETOT: {
        int				s;
        struct atpcb	*at_pcb, *clonedat_pcb;
        int				cloned_fd = *(int *)data;

        s = splnet();		/* XXX */
        at_pcb = sotoatpcb(so);
        
        /* let's make sure it's either -1 or a valid file descriptor */
        if (cloned_fd != -1) {
            struct socket	*cloned_so;
			error = file_socket(cloned_fd, &cloned_so);
            if (error){
                splx(s);	/* XXX */
                break;
            }
            clonedat_pcb = sotoatpcb(cloned_so);
        } else {
            clonedat_pcb = NULL;
        }

        if (clonedat_pcb == NULL) {
            at_pcb->ddp_flags |= DDPFLG_STRIPHDR;
        } else {
            at_pcb->ddp_flags = clonedat_pcb->ddp_flags;
        }
        splx(s);		/* XXX */
		file_drop(cloned_fd);
        break;
    }
        
	default:
		if (ifp == 0 || ifp->if_ioctl == 0)
			return (EOPNOTSUPP);
		return dlil_ioctl(0, ifp, cmd, (caddr_t) data);
	}

	return(error);
}

/* From dlil_post_msg() */
void atalk_post_msg(struct ifnet *ifp, u_long event_code, struct at_addr *address, at_nvestr_t *zone) 
{
	struct kev_atalk_data  	at_event_data;
	struct kev_msg  		ev_msg;

	ev_msg.vendor_code    = KEV_VENDOR_APPLE;
	ev_msg.kev_class      = KEV_NETWORK_CLASS;
	ev_msg.kev_subclass   = KEV_ATALK_SUBCLASS;
	ev_msg.event_code 	  = event_code;
	
	bzero(&at_event_data, sizeof(struct kev_atalk_data));
    
	if (ifp != 0) {
		strlcpy(&at_event_data.link_data.if_name[0], ifp->if_name, IFNAMSIZ);
		at_event_data.link_data.if_family = ifp->if_family;
		at_event_data.link_data.if_unit   = (unsigned long) ifp->if_unit;
	}
	
	if (address != 0) {
		at_event_data.node_data.address = *address;
	}
	else if (zone != 0) {
		at_event_data.node_data.zone = *zone;
	}
    
	ev_msg.dv[0].data_length = sizeof(struct kev_atalk_data);
	ev_msg.dv[0].data_ptr    = &at_event_data;	
	ev_msg.dv[1].data_length = 0;
	
	kev_post_msg(&ev_msg);
}
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
8f6c56a5	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
1c79356b	5	*
8f6c56a5 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
8ad349bb	24	* limitations under the License.
8f6c56a5 A	25	*
8f6c56a5 A	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
1c79356b A	27	*/
	28	/*
	29	* Copyright (c) 1998 Apple Computer, Inc.
	30	*/
	31
	32	/* at.c
	33	*/
	34
	35	#include <sys/param.h>
	36	#include <sys/systm.h>
	37	#include <sys/ioctl.h>
	38	#include <sys/errno.h>
	39	#include <sys/malloc.h>
	40	#include <sys/socket.h>
	41	#include <sys/socketvar.h>
	42	#include <sys/file.h>
91447636	43	#include <sys/kauth.h>
1c79356b A	44
	45	#include <net/if.h>
	46	#include <net/if_dl.h>
	47	#include <net/if_types.h>
1c79356b A	48	#include <net/dlil.h>
	49
	50	#include <netat/appletalk.h>
	51	#include <netat/sysglue.h>
	52	#include <netat/at_pcb.h>
	53	#include <netat/at_var.h>
	54	#include <netat/ddp.h>
	55	#include <netat/nbp.h>
	56	#include <netat/routing_tables.h>
	57	#include <netat/debug.h>
	58
9bccf70c A	59	#include <sys/kern_event.h>
9bccf70c A	60
0b4e3aa0	61	extern int at_ioctl(struct atpcb *, u_long, caddr_t, int fromKernel);
1c79356b A	62	extern int routerStart(at_kern_err_t *);
	63	extern void elap_offline(at_ifaddr_t *);
	64	extern at_ifaddr_t find_ifID(char );
	65	extern at_nvestr_t getRTRLocalZone(zone_usage_t );
	66	extern int setLocalZones(at_nvestr_t *, int);
	67
	68	extern int xpatcnt;
	69	extern at_ifaddr_t at_interfaces[];
	70	extern at_ifaddr_t *ifID_home;
	71	extern TAILQ_HEAD(name_registry, _nve_) name_registry;
	72	extern int nve_lock;
	73
	74	struct etalk_addr etalk_multicast_addr = {
	75	{0x09, 0x00, 0x07, 0xff, 0xff, 0xff}};
	76	struct etalk_addr ttalk_multicast_addr = {
	77	{0xC0, 0x00, 0x40, 0x00, 0x00, 0x00}};
	78
	79	/* called only in router mode */
8f6c56a5 A	80	static int set_zones(ifz)
8f6c56a5 A	81	zone_usage_t *ifz;
1c79356b A	82
	83	/* 1. adds zone to table
	84	2. looks up each route entry from zone list
	85	3. sets zone bit in each route entry
	86
	87	returns 0 if successful
	88	errno if error occurred
	89	*/
	90	{
	91	int i;
	92	at_ifaddr_t *ifID;
	93	short zno;
	94	RT_entry *rte;
	95
	96	zno = zt_add_zone(ifz->zone_name.str, ifz->zone_name.len);
	97
	98	if (zno == ZT_MAXEDOUT) {
	99	dPrintf(D_M_ELAP, D_L_ERROR, ("set_zones: error: table full\n"));
	100	return(ENOSPC);
	101	}
	102	if (ifz->zone_home) {
	103	ifID_home->ifZoneName = ifz->zone_name;
	104	ifID_home->ifDefZone = zno;
	105	}
	106
	107	for (i=0; i<IF_TOTAL_MAX; i++) {
	108	if (ifz->zone_iflist.at_if[i][0]) {
	109	if ((ifID = find_ifID(ifz->zone_iflist.at_if[i]))) {
	110	rte = rt_blookup(ifID->ifThisCableEnd);
	111	if (!rte) {
	112	dPrintf(D_M_ELAP, D_L_ERROR,
	113	("set_zones: error: can't find route\n"));
	114	} else {
	115	zt_set_zmap(zno, rte->ZoneBitMap);
	116
	117	/* if first zone for this I/F,
	118	make default */
	119	if (!ifID->ifDefZone)
	120	ifID->ifDefZone = zno;
	121	}
	122	}
	123	}
	124	}
	125
	126	return(0);
	127	} /* set_zones */
	128
	129	/*
	130	* Generic internet control operations (ioctl's).
	131	* ifp is 0 if not an interface-specific ioctl.
	132	*/
	133
91447636 A	134	int
91447636 A	135	at_control(so, cmd, data, ifp)
1c79356b A	136	struct socket *so;
	137	u_long cmd;
	138	caddr_t data;
	139	struct ifnet *ifp;
	140	{
	141	struct ifreq ifr = (struct ifreq )data;
	142	int pat_id = 0, error = 0;
	143	struct proc *p = current_proc();
	144	at_ifaddr_t *ifID = 0;
	145	struct ifaddr *ifa;
	146	struct sockaddr_dl *sdl;
	147
91447636 A	148	if ((cmd & 0xffff) == 0xff99) {
91447636 A	149	u_long fixed_command;
8f6c56a5	150	char ioctl_buffer[32];
1c79356b A	151	/* *** this is a temporary hack to get at_send_to_dev() to
	152	work with BSD-style sockets instead of the special purpose
	153	system calls, ATsocket() and ATioctl().
	154	*** */
91447636 A	155	fixed_command = _IOW(0, 0xff99, user_addr_t);
91447636 A	156	if ((error = at_ioctl((struct atpcb *)so->so_pcb, fixed_command, data, 0))) {
1c79356b A	157	if (((struct atpcb *)so->so_pcb)->proto != ATPROTO_LAP) {
1c79356b A	158	((struct atpcb *)so->so_pcb)->proto = ATPROTO_LAP;
91447636	159	error = at_ioctl((struct atpcb *)so->so_pcb, fixed_command, data , 0);
1c79356b A	160	}
	161	}
	162	return(error);
	163
	164	/* *** processing should be
	165	return(EINVAL);
	166	*** */
	167	}
	168	/*
	169	* Find address for this interface, if it exists.
	170	*/
	171	if (ifp)
	172	for (pat_id = 0; pat_id < xpatcnt; pat_id++)
	173	if (at_interfaces[pat_id].aa_ifp == ifp) {
	174	ifID = &at_interfaces[pat_id];
	175	break;
	176	}
	177
	178	switch (cmd) {
	179
	180	case AIOCGETSTATE:
	181	{
	182	at_state_t global_state = (at_state_t )data;
	183
	184	*global_state = at_state;
	185	return(0);
	186	break;
	187	}
	188
	189	case AIOCGETIFCFG:
	190	{
	191	at_if_cfg_t cfgp = (at_if_cfg_t )data;
	192
	193	ifID = 0;
	194	if ((at_state.flags & AT_ST_STARTED) &&
	195	ifID_home) {
	196	if (strlen(cfgp->ifr_name)) {
	197	TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
	198	if (!strncmp(ifID->ifName, cfgp->ifr_name,
	199	strlen(ifID->ifName)))
	200	break;
	201	}
	202	} else {
	203	ifID = ifID_home;
8f6c56a5 A	204	strlcpy(cfgp->ifr_name, ifID->ifName,
8f6c56a5 A	205	sizeof(cfgp->ifr_name));
1c79356b A	206	}
	207	if (ifID && ifID->ifState != LAP_OFFLINE) {
	208	cfgp->flags = ifID->ifFlags;
	209	/* put the IF state into the low order
	210	bits of flags */
	211	cfgp->flags \|= (ifID->ifState & LAP_STATE_MASK);
	212	cfgp->node = ifID->ifThisNode;
	213	cfgp->router = ifID->ifARouter;
	214	cfgp->netStart = ifID->ifThisCableStart;
	215	cfgp->netEnd = ifID->ifThisCableEnd;
	216	cfgp->zonename = ifID->ifZoneName;
	217	return(0);
	218	} else
	219	return(EINVAL);
	220	} else
	221	return(ENOTREADY);
	222	break;
	223	}
	224
	225	case AIOCSETDEFZONE:
	226	{
	227	at_def_zone_t defzonep = (at_def_zone_t )data;
	228
	229	/* check for root access */
91447636	230	if (error = suser(kauth_cred_get(), 0))
1c79356b A	231	return(EACCES);
	232
	233	ifID = 0;
	234	if ((at_state.flags & AT_ST_STARTED) && ifID_home) {
	235	if (strlen(defzonep->ifr_name)) {
	236	TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
	237	if (!strncmp(ifID->ifName, defzonep->ifr_name,
	238	strlen(ifID->ifName)))
	239	break;
	240	}
	241	} else {
	242	ifID = ifID_home;
8f6c56a5 A	243	strlcpy(defzonep->ifr_name, ifID->ifName,
8f6c56a5 A	244	sizeof(defzonep->ifr_name));
1c79356b A	245	}
	246
	247	/* In routing mode the default zone is only set for the
	248	default interface. */
	249	if (ROUTING_MODE && (ifID != ifID_home))
	250	return(EINVAL);
	251
	252	if (ifID && ifID->ifState != LAP_OFFLINE) {
	253	if (zonename_equal(&ifID->ifZoneName,
	254	&defzonep->zonename))
	255	return(0);
	256	else {
	257	/* check the zone name */
	258	if (MULTIPORT_MODE) {
	259	short zno;
9bccf70c	260	at_ifnames_t ifs_in_zone;
1c79356b A	261
	262	if (!(zno = zt_find_zname(&defzonep->zonename)))
	263	return(EINVAL);
	264
9bccf70c A	265	getIfUsage(zno-1, &ifs_in_zone);
9bccf70c A	266	if (!ifs_in_zone.at_if[ifID->ifPort])
1c79356b A	267	return(EINVAL);
	268	ifID->ifDefZone = zno+1;
	269	} else {
	270	int i;
	271	at_nvestr_t *zone;
	272
	273	for (i = 0, zone = getSPLocalZone(i);
	274	zone;
	275	i++, zone = getSPLocalZone(i)) {
	276	if (zonename_equal(zone,
	277	&defzonep->zonename))
	278	break;
	279	}
	280	if (!zone)
	281	return(EINVAL);
	282	}
	283	ifID->ifZoneName = defzonep->zonename;
	284	(void)regDefaultZone(ifID);
9bccf70c A	285
	286	/* AppleTalk zone was changed. Send event with zone info. */
	287	atalk_post_msg(ifID->aa_ifp, KEV_ATALK_ZONEUPDATED, 0, &(ifID->ifZoneName));
	288
1c79356b A	289	return(0);
	290	}
	291	} else
	292	return(EINVAL);
	293	} else
	294	return(ENOTREADY);
	295	break;
	296	}
	297
	298	case AIOCREGLOCALZN:
	299	{
	300	at_nvestr_t zone = (at_nvestr_t )data;
	301
	302	if (!(at_state.flags & AT_ST_STARTED) \|\| !ifID_home)
	303	return(ENOTREADY);
	304
	305	if (MULTIPORT_MODE)
	306	return(EINVAL);
	307
	308	return(setLocalZones(zone, zone->len));
	309
	310	break;
	311	}
	312	case AIOCSETZNUSAGE:
	313	if (!(at_state.flags & AT_ST_STARTED) \|\| !ifID_home)
	314	return(ENOTREADY);
	315
	316	if (!ROUTING_MODE)
	317	return(EINVAL);
	318
	319	return(set_zones((zone_usage_t *)data));
	320
	321	break;
	322
	323	case AIOCGETZNUSAGE:
	324	if (!(at_state.flags & AT_ST_STARTED) \|\| !ifID_home)
	325	return(ENOTREADY);
	326
	327	if (!MULTIPORT_MODE)
	328	return(EINVAL);
	329
	330	if (getRTRLocalZone((zone_usage_t *)data))
	331	return(0);
	332	else
	333	return(ENOENT);
	334	break;
	335
	336	case AIOCNBPREG:
	337	{
	338	at_nbp_reg_t nbpP = (at_nbp_reg_t )data;
	339	nve_entry_t nve;
91447636	340	int error2;
1c79356b A	341
	342	if (!(at_state.flags & AT_ST_STARTED) \|\| !ifID_home)
	343	return(ENOTREADY);
	344
	345	/* multihoming mode */
	346	if (MULTIHOME_MODE) {
	347	return(nbp_mh_reg(nbpP));
	348	}
	349
	350	/* single port mode or router mode */
	351	if (nbp_fillin_nve(&nbpP->name, &nve) != 0) {
	352	/* bad tuple... */
	353	return(EINVAL);
	354	}
	355
	356	/* In routing mode when the zone is specified, we need to
	357	find an interface on which the specified zone is seeded, so
	358	that the zone multicast will be plausible. */
	359	if (ROUTING_MODE && !(DEFAULT_ZONE(&nve.zone))) {
	360	/* find first segment (interface) which is seeded for
	361	this zone */
	362	int finished = FALSE;
	363	int zno;
9bccf70c	364	at_ifnames_t ifs_in_zone;
1c79356b A	365	if (!(zno = zt_find_zname(&nve.zone))) {
	366	return(EINVAL);
	367	}
9bccf70c	368	getIfUsage(zno-1, &ifs_in_zone);
1c79356b A	369
1c79356b A	370	TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
9bccf70c	371	if (!ifs_in_zone.at_if[ifID->ifPort])
1c79356b A	372	/* zone doesn't match */
1c79356b A	373	continue;
9bccf70c	374	else {
1c79356b	375	finished = TRUE;
9bccf70c A	376	break;
9bccf70c A	377	}
1c79356b A	378	}
	379	if (!finished)
	380	return(EINVAL);
	381	} else
	382	ifID = ifID_home;
	383
	384	nve.address.net = ifID->ifThisNode.s_net;
	385	nve.address.node = ifID->ifThisNode.s_node;
	386	nve.address.socket = nbpP->addr.socket;
	387	nve.ddptype = nbpP->ddptype;
	388
	389	if (nbp_find_nve(&nve))
	390	return(EADDRNOTAVAIL);
	391
	392	/* Normal case; no tuple found for this name, so insert
	393	* this tuple in the registry and return ok response.
	394	*/
8f6c56a5	395	ATDISABLE(nve_lock, NVE_LOCK);
91447636	396	if ((error2 = nbp_new_nve_entry(&nve, ifID)) == 0) {
1c79356b A	397	nbpP->addr.net = ifID->ifThisNode.s_net;
	398	nbpP->addr.node = ifID->ifThisNode.s_node;
	399	nbpP->unique_nbp_id = nve.unique_nbp_id;
	400	}
8f6c56a5	401	ATENABLE(nve_lock, NVE_LOCK);
1c79356b	402
91447636	403	return(error2);
1c79356b A	404	break;
	405	}
	406
	407	case AIOCNBPREMOVE:
	408	{
	409	at_nbp_reg_t nbpP = (at_nbp_reg_t )data;
	410	nve_entry_t *nve_entry, nve;
	411
	412	if (!(at_state.flags & AT_ST_STARTED))
	413	return(ENOTREADY);
	414
	415	/* delete by id */
	416	if (nbpP->unique_nbp_id) {
8f6c56a5	417	ATDISABLE(nve_lock, NVE_LOCK);
1c79356b A	418	TAILQ_FOREACH(nve_entry, &name_registry, nve_link) {
	419	if (nve_entry->unique_nbp_id == nbpP->unique_nbp_id) {
	420	/* Found a match! */
	421	nbp_delete_entry(nve_entry);
8f6c56a5	422	ATENABLE(nve_lock, NVE_LOCK);
1c79356b A	423	return(0);
	424	}
	425	}
8f6c56a5	426	ATENABLE(nve_lock, NVE_LOCK);
1c79356b A	427	return(EADDRNOTAVAIL);
	428	}
	429
	430	/* delete by entity */
	431	if (nbp_fillin_nve(&nbpP->name, &nve) != 0) {
	432	/* bad tuple... */
	433	return(EINVAL);
	434	}
	435
	436	if (MULTIHOME_MODE && DEFAULT_ZONE(&nbpP->name.zone)) {
	437	/* if mhome & , remove nve from all default zones /
	438	int found = FALSE; /* if any found & deleted */
	439
	440	TAILQ_FOREACH(ifID, &at_ifQueueHd, aa_link) {
	441	nve.zone = ifID->ifZoneName;
	442	nve.zone_hash = nbp_strhash(&nve.zone);
	443	if ((nve_entry = nbp_find_nve(&nve)) == NULL)
	444	continue;
	445
8f6c56a5	446	ATDISABLE(nve_lock, NVE_LOCK);
1c79356b	447	nbp_delete_entry(nve_entry);
8f6c56a5	448	ATENABLE(nve_lock, NVE_LOCK);
1c79356b A	449	found = TRUE;
	450	}
	451	if (found)
	452	return(0);
	453	else
	454	return(EADDRNOTAVAIL);
	455	}
	456
	457	if ((nve_entry = nbp_find_nve(&nve)) == NULL)
	458	/* Can't find the tuple we're looking for, send error*/
	459	return(EADDRNOTAVAIL);
	460
	461	/* Normal case; tuple found for this name, so delete
	462	* the entry from the registry and return ok response.
	463	*/
8f6c56a5	464	ATDISABLE(nve_lock, NVE_LOCK);
1c79356b	465	nbp_delete_entry(nve_entry);
8f6c56a5	466	ATENABLE(nve_lock, NVE_LOCK);
1c79356b A	467	return(0);
	468
	469	break;
	470	}
	471
	472	case AIOCSETROUTER:
	473	{
	474	at_router_params_t rt = (at_router_params_t )data;
	475
	476	/* check for root access */
91447636	477	if (error = suser(kauth_cred_get(), 0))
1c79356b A	478	return(EACCES);
	479
	480	/* when in routing/multihome mode the AIOCSETROUTER IOCTL
	481	is done first */
	482	if (at_state.flags & AT_ST_STARTED)
	483	return(EALREADY);
	484
	485	/* Setup the routing & zip table size for the router */
	486	if (rt->rtmp_table_sz >= RT_MIN && rt->rtmp_table_sz <= RT_MAX)
	487	RT_maxentry = rt->rtmp_table_sz;
	488	else
	489	RT_maxentry = RT_DEFAULT;
	490
	491	if (rt->zone_table_sz >= ZT_MIN && rt->zone_table_sz <= ZT_MAX)
	492	ZT_maxentry = rt->zone_table_sz;
	493	else
	494	ZT_maxentry = ZT_DEFAULT;
	495
	496	if (rt_table_init() == ENOBUFS)
	497	return(ENOBUFS);
	498
	499	if (rt->router_mix)
	500	RouterMix = (int)rt->router_mix;
	501	else
	502	RouterMix = RT_MIX_DEFAULT;
	503
	504	add_ddp_handler(RTMP_SOCKET, rtmp_router_input);
	505
	506	if (rt->multihome)
	507	at_state.flags \|= AT_ST_MULTIHOME;
	508	else
	509	at_state.flags \|= AT_ST_ROUTER;
	510	break;
	511	}
	512	case AIOCSTARTROUTER:
	513	{
	514	at_kern_err_t keP = (at_kern_err_t )data;
	515
	516	/* check for root access */
91447636	517	if (suser(kauth_cred_get(), 0))
1c79356b A	518	return(EACCES);
	519
	520	if (!(at_state.flags & AT_ST_STARTED))
	521	return(ENOTREADY);
	522
	523	bzero(keP, sizeof(at_kern_err_t));
	524	error = routerStart(keP);
	525
	526	break;
	527	}
	528	case AIOCGETROUTER:
	529	{
	530	at_router_params_t rt = (at_router_params_t )data;
	531
	532	if (!(at_state.flags & AT_ST_STARTED))
	533	return(ENOTREADY);
	534
	535	rt->multihome = (MULTIHOME_MODE)? 1: 0;
	536	rt->rtmp_table_sz = RT_maxentry;
	537	rt->zone_table_sz = ZT_maxentry;
	538	rt->router_mix = RouterMix;
	539
	540	break;
	541	}
	542	case AIOCSTOPATALK:
9bccf70c A	543	{
9bccf70c A	544	int count_only = (int )data,
1c79356b A	545	ret;
	546
	547	/* check for root access */
91447636	548	if (error = suser(kauth_cred_get(), 0))
1c79356b A	549	return(EACCES);
	550
	551	ret = ddp_shutdown(*count_only);
9bccf70c A	552
	553	if (*count_only != 0)
	554	{
1c79356b A	555	*count_only = ret;
1c79356b A	556	return(0);
9bccf70c A	557	}
	558	else
	559	{
	560	if (ret == 0)
	561	{
	562	/* AppleTalk was successfully shut down. Send event. */
	563	atalk_post_msg(0, KEV_ATALK_DISABLED, 0, 0);
	564	return 0;
	565	}
	566	else
	567	return EBUSY;
	568	}
	569
1c79356b	570	break;
9bccf70c	571	}
1c79356b A	572
	573	case SIOCSIFADDR:
	574	/* check for root access */
91447636	575	if (error = suser(kauth_cred_get(), 0))
1c79356b A	576	error = EACCES;
	577	else if (ifID)
	578	error = EEXIST;
	579	else {
	580	int s;
	581	if (xpatcnt == 0) {
9bccf70c	582	at_state.flags \|= AT_ST_STARTING;
1c79356b A	583	ddp_brt_init();
	584	}
	585
	586	/* * find an empty entry * */
	587	ifID = &at_interfaces[xpatcnt];
	588	bzero((caddr_t)ifID, sizeof(at_ifaddr_t));
8f6c56a5	589	strlcpy(ifID->ifName, ifr->ifr_name, sizeof(ifID->ifName));
1c79356b A	590
	591	ifID->aa_ifp = ifp;
	592	ifa = &ifID->aa_ifa;
91447636	593	ifnet_lock_exclusive(ifp);
1c79356b A	594	TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link)
	595	if ((sdl = (struct sockaddr_dl *)ifa->ifa_addr) &&
	596	(sdl->sdl_family == AF_LINK)) {
	597	bcopy(LLADDR(sdl), ifID->xaddr, sizeof(ifID->xaddr));
	598	#ifdef APPLETALK_DEBUG
	599	kprintf("SIOCSIFADDR: local enet address is %x.%x.%x.%x.%x.%x\n",
	600	ifID->xaddr[0], ifID->xaddr[1],
	601	ifID->xaddr[2], ifID->xaddr[3],
	602	ifID->xaddr[4], ifID->xaddr[5]);
	603	#endif
	604	break;
	605	}
	606
	607	/* attach the AppleTalk address to the ifnet structure */
	608	ifa = &ifID->aa_ifa;
	609	ifa->ifa_addr = (struct sockaddr *)&ifID->ifNodeAddress;
	610	ifID->ifNodeAddress.sat_len = sizeof(struct sockaddr_at);
	611	ifID->ifNodeAddress.sat_family = AF_APPLETALK;
	612	/* the address itself will be filled in when ifThisNode
	613	is set */
91447636 A	614	if_attach_ifa(ifp, ifa);
91447636 A	615	ifnet_lock_done(ifp);
1c79356b A	616
	617	switch (ifp->if_type) {
	618	case IFT_ETHER:
91447636 A	619	case IFT_L2VLAN:
	620	case IFT_IEEE8023ADLAG: /* bonded ethernet */
	621	ether_attach_at(ifp);
1c79356b A	622	error = 0;
	623	ifID->cable_multicast_addr = etalk_multicast_addr;
	624
	625	xpatcnt++;
	626	break;
	627	case IFT_FDDI:
	628	ifID->cable_multicast_addr = etalk_multicast_addr;
	629	ddp_bit_reverse(&ifID->cable_multicast_addr);
	630	xpatcnt++;
	631	break;
	632	case IFT_ISO88025: /* token ring */
	633	ifID->cable_multicast_addr = ttalk_multicast_addr;
	634	ddp_bit_reverse(&ifID->cable_multicast_addr);
	635
	636	xpatcnt++;
	637	break;
	638	default:
	639	error = EINVAL;
	640	}
	641	}
	642	break;
	643
	644	/* complete the initialization started in SIOCSIFADDR */
	645	case AIOCSIFADDR:
9bccf70c	646	{
1c79356b A	647	at_if_cfg_t cfgp = (at_if_cfg_t )data;
1c79356b A	648
9bccf70c	649	if (!(at_state.flags & AT_ST_STARTING))
1c79356b A	650	return(ENOTREADY);
	651
	652	if (!(ifID = find_ifID(cfgp->ifr_name)))
	653	return(EINVAL);
9bccf70c	654
1c79356b A	655	return(lap_online(ifID, cfgp));
1c79356b A	656	break;
9bccf70c	657	}
1c79356b A	658
	659	#ifdef NOT_YET
	660	/* *** this can't be added until AT can handle dynamic addition and
	661	deletion of interfaces *** */
	662	case SIOCDIFADDR:
	663	/* check for root access */
91447636	664	if (error = suser(kauth_cred_get(), 0))
1c79356b A	665	error = EACCES;
	666	else if (!ifID)
	667	error = EINVAL;
	668	else
	669	elap_offline(ifID);
	670	break;
	671	#endif
	672
	673	case SIOCSETOT: {
8f6c56a5	674	int s;
1c79356b A	675	struct atpcb at_pcb, clonedat_pcb;
	676	int cloned_fd = (int )data;
	677
8f6c56a5	678	s = splnet(); /* XXX */
1c79356b A	679	at_pcb = sotoatpcb(so);
	680
	681	/* let's make sure it's either -1 or a valid file descriptor */
	682	if (cloned_fd != -1) {
	683	struct socket *cloned_so;
91447636	684	error = file_socket(cloned_fd, &cloned_so);
8f6c56a5 A	685	if (error){
8f6c56a5 A	686	splx(s); /* XXX */
1c79356b	687	break;
8f6c56a5	688	}
1c79356b A	689	clonedat_pcb = sotoatpcb(cloned_so);
	690	} else {
	691	clonedat_pcb = NULL;
	692	}
	693
	694	if (clonedat_pcb == NULL) {
	695	at_pcb->ddp_flags \|= DDPFLG_STRIPHDR;
	696	} else {
	697	at_pcb->ddp_flags = clonedat_pcb->ddp_flags;
	698	}
8f6c56a5	699	splx(s); /* XXX */
91447636	700	file_drop(cloned_fd);
1c79356b A	701	break;
	702	}
	703
	704	default:
	705	if (ifp == 0 \|\| ifp->if_ioctl == 0)
	706	return (EOPNOTSUPP);
	707	return dlil_ioctl(0, ifp, cmd, (caddr_t) data);
	708	}
	709
	710	return(error);
	711	}
9bccf70c A	712
	713	/* From dlil_post_msg() */
	714	void atalk_post_msg(struct ifnet ifp, u_long event_code, struct at_addr address, at_nvestr_t *zone)
	715	{
	716	struct kev_atalk_data at_event_data;
	717	struct kev_msg ev_msg;
	718
	719	ev_msg.vendor_code = KEV_VENDOR_APPLE;
	720	ev_msg.kev_class = KEV_NETWORK_CLASS;
	721	ev_msg.kev_subclass = KEV_ATALK_SUBCLASS;
	722	ev_msg.event_code = event_code;
	723
	724	bzero(&at_event_data, sizeof(struct kev_atalk_data));
	725
	726	if (ifp != 0) {
8f6c56a5	727	strlcpy(&at_event_data.link_data.if_name[0], ifp->if_name, IFNAMSIZ);
9bccf70c A	728	at_event_data.link_data.if_family = ifp->if_family;
	729	at_event_data.link_data.if_unit = (unsigned long) ifp->if_unit;
	730	}
	731
	732	if (address != 0) {
	733	at_event_data.node_data.address = *address;
	734	}
	735	else if (zone != 0) {
	736	at_event_data.node_data.zone = *zone;
	737	}
	738
	739	ev_msg.dv[0].data_length = sizeof(struct kev_atalk_data);
	740	ev_msg.dv[0].data_ptr = &at_event_data;
	741	ev_msg.dv[1].data_length = 0;
	742
	743	kev_post_msg(&ev_msg);
	744	}