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

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * 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. 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_LICENSE_HEADER_END@
 */
/*
 *	Copyright (c) 1996 Apple Computer, Inc. 
 *
 *		Created April 8, 1996 by Tuyen Nguyen
 *   Modified, March 17, 1997 by Tuyen Nguyen for MacOSX.
 *
 *	File: tx.c
 */
#include <sys/errno.h>
#include <sys/types.h>
#include <sys/param.h>
#include <machine/spl.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/filedesc.h>
#include <sys/fcntl.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <net/if.h>

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

/*
 * Any AURP protocol or appletalk data (ddp) packets flowing through
 *  are inserted into the kernel aurpd process's (atalk) input queue.
 * Assume here that we deal with single packets, i.e., someone earlier
 *  in the food chain has broken up packet chains.
 */
void AURPsend(mdata, type, node)
	gbuf_t *mdata;
	int type, node;
{
	struct aurp_domain *domain;
	gbuf_t *m;
	int msize = AT_WR_OFFSET+32+IP_DOMAINSIZE;

	/* Add the domain header */
	if ((m = gbuf_alloc(msize, PRI_MED)) == 0) {
		gbuf_freem(mdata);
		dPrintf(D_M_AURP, D_L_WARNING, ("AURPsend: gbuf_alloc failed\n"));
		return;
	}
	gbuf_wset(m,msize);
	gbuf_rinc(m,AT_WR_OFFSET+32);
	gbuf_cont(m) = mdata;
	domain = (struct aurp_domain *)gbuf_rptr(m);
	domain->dst_length = IP_LENGTH;
	domain->dst_authority = IP_AUTHORITY;
	domain->dst_distinguisher = IP_DISTINGUISHER;
	domain->src_length = IP_LENGTH;
	domain->src_authority = IP_AUTHORITY;
	domain->src_distinguisher = IP_DISTINGUISHER;
	domain->src_address = aurp_global.src_addr;
	domain->version = AUD_Version;
	domain->reserved = 0;
	domain->type = type;
	domain->dst_address = aurp_global.dst_addr[node];
	atalk_to_ip(m);
}

/*
 * Called from within ddp (via ddp_AURPsendx) to handle data (DDP) packets
 *  sent from the AppleTalk stack, routing updates, and routing info
 *  initialization.
 */
void AURPcmdx(code, mdata, param)
	int code;
	gbuf_t *mdata;
	int param;
{
	unsigned char node;
	gbuf_t *mdata_next;

	if (mdata == 0)
		return;
	if (aurp_gref == 0) {
		if (code != AURPCODE_DEBUGINFO)
			AURPfreemsg(mdata);
		return;
	}

	switch (code) {
	case AURPCODE_DATAPKT: /* data packet */
		node = (unsigned char)param;
		if (gbuf_next(mdata)) {
			mdata_next = gbuf_next(mdata);
			gbuf_next(mdata) = 0;
			AURPsend(mdata, AUD_Atalk, node);
			do {
				mdata = mdata_next;
				mdata_next = gbuf_next(mdata);
				gbuf_next(mdata) = 0;
				/* Indicate non-AURP packet, node id of peer */
				AURPsend(mdata, AUD_Atalk, node);
			} while (mdata_next);
		} else
			AURPsend(mdata, AUD_Atalk, node);
		break;

	case AURPCODE_RTUPDATE:
		AURPrtupdate((RT_entry *)mdata, param);
		break;

	case AURPCODE_DEBUGINFO: /* debug info */
		dbgBits = *(dbgBits_t *)mdata;
		net_port = param;
		break;

	default:
		dPrintf(D_M_AURP, D_L_ERROR, ("AURPcmdx: bad code, %d\n", code));
	}
}
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
d7e50217	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
d7e50217 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
d7e50217 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/*
	26	* Copyright (c) 1996 Apple Computer, Inc.
	27	*
	28	* Created April 8, 1996 by Tuyen Nguyen
	29	* Modified, March 17, 1997 by Tuyen Nguyen for MacOSX.
	30	*
	31	* File: tx.c
	32	*/
	33	#include <sys/errno.h>
	34	#include <sys/types.h>
	35	#include <sys/param.h>
	36	#include <machine/spl.h>
	37	#include <sys/systm.h>
	38	#include <sys/kernel.h>
	39	#include <sys/proc.h>
	40	#include <sys/filedesc.h>
	41	#include <sys/fcntl.h>
	42	#include <sys/mbuf.h>
	43	#include <sys/socket.h>
	44	#include <sys/socketvar.h>
	45	#include <net/if.h>
	46
	47	#include <netat/sysglue.h>
	48	#include <netat/appletalk.h>
	49	#include <netat/at_var.h>
	50	#include <netat/routing_tables.h>
	51	#include <netat/at_pcb.h>
	52	#include <netat/aurp.h>
	53	#include <netat/debug.h>
	54
	55	/*
	56	* Any AURP protocol or appletalk data (ddp) packets flowing through
	57	* are inserted into the kernel aurpd process's (atalk) input queue.
	58	* Assume here that we deal with single packets, i.e., someone earlier
	59	* in the food chain has broken up packet chains.
	60	*/
	61	void AURPsend(mdata, type, node)
	62	gbuf_t *mdata;
	63	int type, node;
	64	{
	65	struct aurp_domain *domain;
	66	gbuf_t *m;
	67	int msize = AT_WR_OFFSET+32+IP_DOMAINSIZE;
	68
	69	/* Add the domain header */
	70	if ((m = gbuf_alloc(msize, PRI_MED)) == 0) {
	71	gbuf_freem(mdata);
	72	dPrintf(D_M_AURP, D_L_WARNING, ("AURPsend: gbuf_alloc failed\n"));
	73	return;
	74	}
	75	gbuf_wset(m,msize);
	76	gbuf_rinc(m,AT_WR_OFFSET+32);
	77	gbuf_cont(m) = mdata;
	78	domain = (struct aurp_domain *)gbuf_rptr(m);
	79	domain->dst_length = IP_LENGTH;
	80	domain->dst_authority = IP_AUTHORITY;
	81	domain->dst_distinguisher = IP_DISTINGUISHER;
	82	domain->src_length = IP_LENGTH;
	83	domain->src_authority = IP_AUTHORITY;
	84	domain->src_distinguisher = IP_DISTINGUISHER;
	85	domain->src_address = aurp_global.src_addr;
86	domain->version = AUD_Version;
87	domain->reserved = 0;
88	domain->type = type;
89	domain->dst_address = aurp_global.dst_addr[node];
90	atalk_to_ip(m);
91	}
92
93	/*
94	* Called from within ddp (via ddp_AURPsendx) to handle data (DDP) packets
95	* sent from the AppleTalk stack, routing updates, and routing info
96	* initialization.
97	*/
98	void AURPcmdx(code, mdata, param)
99	int code;
100	gbuf_t *mdata;
101	int param;
102	{
103	unsigned char node;
104	gbuf_t *mdata_next;
105
106	if (mdata == 0)
107	return;
108	if (aurp_gref == 0) {
109	if (code != AURPCODE_DEBUGINFO)
110	AURPfreemsg(mdata);
111	return;
112	}
113
114	switch (code) {
115	case AURPCODE_DATAPKT: /* data packet */
116	node = (unsigned char)param;
117	if (gbuf_next(mdata)) {
118	mdata_next = gbuf_next(mdata);
119	gbuf_next(mdata) = 0;
120	AURPsend(mdata, AUD_Atalk, node);
121	do {
122	mdata = mdata_next;
123	mdata_next = gbuf_next(mdata);
124	gbuf_next(mdata) = 0;
125	/* Indicate non-AURP packet, node id of peer */
126	AURPsend(mdata, AUD_Atalk, node);
127	} while (mdata_next);
128	} else
129	AURPsend(mdata, AUD_Atalk, node);
130	break;
131
132	case AURPCODE_RTUPDATE:
133	AURPrtupdate((RT_entry *)mdata, param);
134	break;
135
136	case AURPCODE_DEBUGINFO: /* debug info */
137	dbgBits = (dbgBits_t )mdata;
138	net_port = param;
139	break;
140
141	default:
142	dPrintf(D_M_AURP, D_L_ERROR, ("AURPcmdx: bad code, %d\n", code));
143	}
144	}