1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2002-2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Internal socket-specific definitions
*/
#ifndef _SOCKET_IMPL_H
#define _SOCKET_IMPL_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/socket.h>
/*
* Socket support definitions
*/
#define MAXSOCKET (10)
#define SOCKETTYPE (65536)
#define MEDIA_LVL 0
#define NETWORK_LVL 1
#define TRANSPORT_LVL 2
#define APP_LVL 3
/* Anonymous ports assigned by socket. */
#define SMALLEST_ANON_PORT 32768
#define LARGEST_ANON_PORT ((64 * 1024) - 1)
/* Socket state bits. */
#define SS_ISCONNECTED 0x000001 /* socket connected to a peer */
#define SS_ISCONNECTING 0x000002 /* in process of connecting to peer */
#define SS_CANTRCVMORE 0x000010 /* can't receive more data from peer */
#define SS_CANTSENDMORE 0x000008 /* can't send more data to peer */
enum { FALSE, TRUE };
enum SockType { INETBOOT_UNUSED, INETBOOT_DGRAM, INETBOOT_RAW,
INETBOOT_STREAM };
enum Ports { SOURCE, DESTINATION };
#define FD_TO_SOCKET(v) ((v) - SOCKETTYPE)
/*
* Message block descriptor copied from usr/src/uts/common/sys/stream.h.
* We need to do that to simplify the porting of TCP code from core
* kernel to inetboot. Note that fields which are not used by TCP
* code are removed.
*/
typedef struct msgb {
struct msgb *b_next;
struct msgb *b_prev;
struct msgb *b_cont;
unsigned char *b_rptr;
unsigned char *b_wptr;
unsigned char *b_datap;
size_t b_size;
} mblk_t;
/* Modified stream routines to ease TCP porting. */
extern mblk_t *allocb(size_t, uint_t);
extern mblk_t *dupb(mblk_t *);
extern void freeb(mblk_t *);
extern void freemsg(mblk_t *);
extern size_t msgdsize(mblk_t *);
/*
* "target" is needed for input prior to IP address assignment. It may
* seem redundant given the binding information contained in the socket,
* but that's only true if we have an IP address. If we don't, and we
* try DHCP, we'll try to udp checksum using INADDR_ANY as the destination
* IP address, when in fact the destination IP address was the IP address
* we were OFFERED/Assigned.
*/
struct inetgram {
/* Common */
struct sockaddr_in igm_saddr; /* source address info */
int igm_level; /* Stack level (LVL) of data */
mblk_t *igm_mp;
struct inetgram *igm_next; /* next inetgram in list */
union {
struct {
/* Input specific */
struct in_addr in_t;
uint16_t in_i;
} _IN_un;
struct {
/* Output specific */
struct in_addr out_r;
int out_f;
} _OUT_un;
} _i_o_inet;
#define igm_target _i_o_inet._IN_un.in_t /* See above comment block */
#define igm_id _i_o_inet._IN_un.in_i /* IP id */
#define igm_router _i_o_inet._OUT_un.out_r /* first router IP ... */
#define igm_oflags _i_o_inet._OUT_un.out_f /* flag: 0 or MSG_DONTROUTE */
};
struct inetboot_socket {
enum SockType type; /* socket type */
uint8_t proto; /* ip protocol */
int out_flags; /* 0 or MSG_DONTROUTE */
boolean_t bound; /* boolean */
uint32_t so_state; /* Socket state */
int so_error; /* Socket error */
struct sockaddr_in bind; /* Binding info */
struct sockaddr_in remote; /* Remote address */
struct inetgram *inq; /* input queue */
int so_sndbuf; /* max send buf size */
int so_rcvbuf; /* max receive buf size */
struct linger so_linger; /* close linger time */
uint32_t in_timeout; /* Input timeout (msec) */
uint32_t so_opt; /* socket level option */
int (*headerlen[APP_LVL])(struct inetgram *);
int (*input[APP_LVL])(int);
int (*output[APP_LVL])(int, struct inetgram *);
int (*close[APP_LVL])(int);
in_port_t (*ports)(uint16_t *, enum Ports);
void *pcb; /* Protocol control block */
};
extern struct inetboot_socket sockets[MAXSOCKET];
extern void add_grams(struct inetgram **, struct inetgram *);
extern void del_gram(struct inetgram **, struct inetgram *, int);
extern void nuke_grams(struct inetgram **);
extern struct inetgram *last_gram(struct inetgram *);
extern int so_check_fd(int, int *);
#ifdef __cplusplus
}
#endif
#endif /* _SOCKET_IMPL_H */
|
