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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: *
24: * ORIGINS: 82
25: *
26: * (C) COPYRIGHT Apple Computer, Inc. 1992-1996
27: * All Rights Reserved
28: *
29: */
30:
31: #ifndef _NETAT_DDP_H_
32: #define _NETAT_DDP_H_
33:
34: /* Header and data sizes */
35:
36: #define DDP_HDR_SIZE 5 /* DDP (short) header size */
37: #define DDP_X_HDR_SIZE 13 /* DDP extended header size */
38: #define DDP_DATA_SIZE 586 /* Maximum DataGram data size */
39: #define DDP_DATAGRAM_SIZE 599 /* Maximum DataGram size */
40:
41: /* DDP socket definitions */
42:
43: #define DDP_SOCKET_1st_RESERVED 1 /* First in reserved range */
44: #define DDP_SOCKET_1st_EXPERIMENTAL 64 /* First in experimental range */
45: #define DDP_SOCKET_1st_DYNAMIC 128 /* First in dynamic range */
46: #define DDP_SOCKET_LAST 253 /* Last socket in any range */
47:
48: /* DDP type used to replace "0" on packets sent out, for compatibility
49: with Open Transport */
50: #define DEFAULT_OT_DDPTYPE 11
51:
52: /* DDP well-known sockets */
53:
54: #define RTMP_SOCKET 1 /* RTMP socket number */
55: #define NBP_SOCKET 2 /* NIS socket number */
56: #define EP_SOCKET 4 /* EP socket number */
57: #define ZIP_SOCKET 6 /* ZIP socket number */
58:
59: /* DDP extended header packet format */
60:
61: typedef struct {
62: unsigned unused:2,
63: hopcount:4,
64: length:10; /* Datagram length */
65: ua_short checksum; /* Checksum */
66: at_net dst_net; /* Destination network number */
67: at_net src_net; /* Source network number */
68: at_node dst_node; /* Destination node ID */
69: at_node src_node; /* Source node ID */
70: at_socket dst_socket; /* Destination socket number */
71: at_socket src_socket; /* Source socket number */
72: u_char type; /* Protocol type */
73: char data[DDP_DATA_SIZE];
74: } at_ddp_t;
75:
76:
77: #define DDPLEN_ASSIGN(ddp, len) ddp->length = len
78: #define DDPLEN_VALUE(ddp) ddp->length
79:
80:
81: /* DDP module statistics and configuration */
82:
83: typedef struct {
84: /* General */
85:
86: /* Receive stats */
87: u_int rcv_bytes;
88: u_int rcv_packets;
89: u_int rcv_bad_length;
90: u_int rcv_unreg_socket;
91: u_int rcv_bad_socket;
92: u_int rcv_bad_checksum;
93: u_int rcv_dropped_nobuf;
94:
95: /* Transmit stats */
96: u_int xmit_bytes;
97: u_int xmit_packets;
98: u_int xmit_BRT_used;
99: u_int xmit_bad_length;
100: u_int xmit_bad_addr;
101: u_int xmit_dropped_nobuf;
102: } at_ddp_stats_t;
103:
104: /* DDP streams module ioctls */
105:
106: #define AT_MID_DDP 203
107:
108: #define DDP_IOC_MYIOCTL(i) ((i>>8) == AT_MID_DDP)
109: #define DDP_IOC_GET_CFG ((AT_MID_DDP<<8) | 1)
110: #define DDP_IOC_GET_STATS ((AT_MID_DDP<<8) | 3)
111:
112: #ifdef NOT_USED
113: #define DDP_IOC_BIND_SOCK ((AT_MID_DDP<<8) | 2)
114: #define DDP_IOC_LSTATUS_TABLE ((AT_MID_DDP<<8) | 4)
115: #define DDP_IOC_ULSTATUS_TABLE ((AT_MID_DDP<<8) | 5)
116: #define DDP_IOC_RSTATUS_TABLE ((AT_MID_DDP<<8) | 6)
117: #define DDP_IOC_SET_WROFF ((AT_MID_DDP<<8) | 7 )
118: #define DDP_IOC_SET_OPTS ((AT_MID_DDP<<8) | 8 )
119: #define DDP_IOC_GET_OPTS ((AT_MID_DDP<<8) | 9 )
120: #define DDP_IOC_GET_SOCK ((AT_MID_DDP<<8) | 10)
121: #define DDP_IOC_GET_PEER ((AT_MID_DDP<<8) | 11)
122: #define DDP_IOC_SET_PEER ((AT_MID_DDP<<8) | 12)
123: #define DDP_IOC_SET_PROTO ((AT_MID_DDP<<8) | 13)
124: #endif
125:
126: #ifdef KERNEL
127:
128: #define DDP_MIN_NETWORK 0x0001
129: #define DDP_MAX_NETWORK 0xfffe
130: #define DDP_STARTUP_LOW 0xff00
131: #define DDP_STARTUP_HIGH DDP_MAX_NETWORK
132:
133: typedef struct {
134: void **inputQ;
135: int *pidM;
136: char **socketM;
137: char *dbgBits;
138: } proto_reg_t;
139:
140: /* *** note: this counts on the src address always being that of the
141: home port
142: *** */
143: #define FROM_US(ddp) ((NET_VALUE(ddp->src_net) ==\
144: ifID_home->ifThisNode.s_net) && \
145: ifID_home->ifThisNode.s_node == ddp->src_node)
146:
147: #define RT_LOOKUP_OKAY(ifID, ddp) \
148: ((ROUTING_MODE && ifID->ifRoutingState==PORT_ONLINE) || \
149: (MULTIHOME_MODE && FROM_US(ddp)))
150:
151: #ifdef NOT_YET
152: /* from sys_glue.c */
153: int ddp_adjmsg(gbuf_t *m, int len);
154: gbuf_t *ddp_growmsg(gbuf_t *mp, int len);
155:
156: /* from ddp.c */
157: int ddp_add_if(at_ifaddr_t *ifID);
158: int ddp_rem_if(at_ifaddr_t *ifID);
159: int ddp_get_stats(at_ddp_stats_t *statsp);
160: int ddp_bind_socket(ddp_socket_t *socketp);
161: int ddp_close_socket(ddp_socket_t *socketp);
162: int ddp_output(gbuf_t **mp, at_socket src_socket, int src_addr_included);
163: void ddp_input(gbuf_t *mp, at_ifaddr_t *ifID);
164: int ddp_router_output(
165: gbuf_t *mp,
166: at_ifaddr_t *ifID,
167: int addr_type,
168: at_net_al router_net,
169: at_node router_node,
170: etalk_addr_t *enet_addr);
171:
172: /* from ddp_proto.c */
173: int ddp_close(gref_t *gref);
174: void ddp_putmsg(gref_t *gref, gbuf_t *mp);
175: gbuf_t *ddp_compress_msg(gbuf_t *mp);
176: void ddp_stop(gbuf_t *mioc, gref_t *gref);
177:
178: /* in ddp_lap.c */
179: void ddp_bit_reverse(struct etalk_addr multicast_addr);
180: #endif /* NOT_YET */
181:
182: #endif /* KERNEL */
183: #endif /* _NETAT_DDP_H_ */
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