/[gxemul]/trunk/src/include/net.h
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Annotation of /trunk/src/include/net.h

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Revision 10 - (hide annotations)
Mon Oct 8 16:18:27 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 5154 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.815 2005/06/27 23:04:35 debug Exp $
20050617	Experimenting some more with netbooting OpenBSD/sgi. Adding
		a hack which allows emulated ethernet networks to be
		distributed across multiple emulator processes.
20050618	Minor updates (documentation, dummy YAMON emulation, etc).
20050620	strcpy/strcat -> strlcpy/strlcat updates.
		Some more progress on evbmips (Malta).
20050621	Adding a section to doc/configfiles.html about ethernet
		emulation across multiple hosts.
		Beginning the work on the ARM translation engine (using the
		dynamic-but-not-binary translation method).
		Fixing a bintrans bug: 0x9fc00000 should always be treated as
		PROM area, just as 0xbfc00000 is.
		Minor progress on Malta emulation (the PCI-ISA bus).
20050622	NetBSD/evbmips can now be installed (using another emulated
		machine) and run (including userland and so on). :-)
		Spliting up the bintrans haddr_entry field into two (one for
		read, one for write). Probably not much of a speed increase,
		though.
		Updating some NetBSD 2.0 -> 2.0.2 in the documentation.
20050623	Minor updates (documentation, the TODO file, etc).
		gzipped kernels are now always automagically gunzipped when
		loaded.
20050624	Adding a dummy Playstation Portable (PSP) mode, just barely
		enough to run Hello World (in weird colors :-).
		Removing the -b command line option; old bintrans is enabled
		by default instead. It makes more sense.
		Trying to finally fix the non-working performance measurement
		thing (instr/second etc).
20050625	Continuing on the essential basics for ARM emulation. Two
		instructions seem to work, a branch and a simple "mov". (The
		mov arguments are not correct yet.) Performance is definitely
		reasonable.
		Various other minor updates.
		Adding the ARM "bl" instruction.
		Adding support for combining multiple ARM instructions into one
		function call. ("mov" + "mov" is the only one implemented so
		far, but it seems to work.)
		Cleaning up some IP32 interrupt things (crime/mace); disabling
		the PS/2 keyboard controller on IP32, so that NetBSD/sgimips
		boots into userland again.
20050626	Finally! NetBSD/sgimips netboots. Adding instructions to
		doc/guestoses.html on how to set up an nfs server etc.
		Various other minor fixes.
		Playstation Portable ".pbp" files can now be used directly.
		(The ELF part of the .pbp is extracted transparently.)
		Converting some sprintf -> snprintf.
		Adding some more instructions to the ARM disassembler.
20050627	More ARM updates. Adding some simple ldr(b), str(b),
		cmps, and conditional branch instructions, enough to run
		a simple Hello World program.
		All ARM instructions are now inlined/generated for all possible
		condition codes.
		Adding add and sub, and more load/store instructions.
		Removing dummy files: cpu_alpha.c, cpu_hppa.c, and cpu_sparc.c.
		Some minor documentation updates; preparing for a 0.3.4
		release. Updating some URLs.

==============  RELEASE 0.3.4  ==============
1 dpavlin 4 #ifndef NET_H
2     #define NET_H
3    
4     /*
5     * Copyright (C) 2004-2005 Anders Gavare. All rights reserved.
6     *
7     * Redistribution and use in source and binary forms, with or without
8     * modification, are permitted provided that the following conditions are met:
9     *
10     * 1. Redistributions of source code must retain the above copyright
11     * notice, this list of conditions and the following disclaimer.
12     * 2. Redistributions in binary form must reproduce the above copyright
13     * notice, this list of conditions and the following disclaimer in the
14     * documentation and/or other materials provided with the distribution.
15     * 3. The name of the author may not be used to endorse or promote products
16     * derived from this software without specific prior written permission.
17     *
18     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21     * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28     * SUCH DAMAGE.
29     *
30     *
31 dpavlin 10 * $Id: net.h,v 1.12 2005/06/17 21:00:04 debug Exp $
32 dpavlin 4 *
33     * Emulated network support. (See net.c for more info.)
34     */
35    
36     #include <netinet/in.h>
37     #include <arpa/inet.h>
38     #include <netdb.h>
39    
40     struct emul;
41     struct ethernet_packet_link;
42 dpavlin 10 struct remote_net;
43 dpavlin 4
44    
45     /*****************************************************************************/
46    
47     /* NOTE: udp_connection and tcp_connection are actually for
48     internal use only. */
49     struct udp_connection {
50     int in_use;
51     int64_t last_used_timestamp;
52    
53     /* Inside: */
54     unsigned char ethernet_address[6];
55     unsigned char inside_ip_address[4];
56     int inside_udp_port;
57    
58     /* TODO: Fragment support for outgoing packets! */
59     int fake_ns;
60    
61     /* Outside: */
62     int udp_id;
63     int socket;
64     unsigned char outside_ip_address[4];
65     int outside_udp_port;
66     };
67    
68     struct tcp_connection {
69     int in_use;
70     int64_t last_used_timestamp;
71    
72     /* Inside: */
73     unsigned char ethernet_address[6];
74     unsigned char inside_ip_address[4];
75     int inside_tcp_port;
76     uint32_t inside_timestamp;
77    
78     /* TODO: tx and rx buffers? */
79     unsigned char *incoming_buf;
80     int incoming_buf_rounds;
81     int incoming_buf_len;
82     uint32_t incoming_buf_seqnr;
83    
84     uint32_t inside_seqnr;
85     uint32_t inside_acknr;
86     uint32_t outside_seqnr;
87     uint32_t outside_acknr;
88    
89     /* Outside: */
90     int state;
91     int tcp_id;
92     int socket;
93     unsigned char outside_ip_address[4];
94     int outside_tcp_port;
95     uint32_t outside_timestamp;
96     };
97    
98     /*****************************************************************************/
99    
100    
101     #define MAX_TCP_CONNECTIONS 60
102     #define MAX_UDP_CONNECTIONS 60
103    
104     struct net {
105     /* The emul struct which this net belong to: */
106     struct emul *emul;
107    
108     /* The network's addresses: */
109     struct in_addr netmask_ipv4;
110     int netmask_ipv4_len;
111    
112     /* NICs connected to this network: */
113     int n_nics;
114     void **nic_extra; /* one void * per NIC */
115    
116     /* The "special machine": */
117     unsigned char gateway_ipv4_addr[4];
118     unsigned char gateway_ethernet_addr[6];
119    
120     /* Read from /etc/resolv.conf: */
121     char *domain_name;
122     int nameserver_known;
123     struct in_addr nameserver_ipv4;
124    
125     int64_t timestamp;
126    
127     struct ethernet_packet_link *first_ethernet_packet;
128     struct ethernet_packet_link *last_ethernet_packet;
129    
130     struct udp_connection udp_connections[MAX_UDP_CONNECTIONS];
131     struct tcp_connection tcp_connections[MAX_TCP_CONNECTIONS];
132 dpavlin 10
133     /* Distributed network: */
134     int local_port;
135     int local_port_socket;
136     struct remote_net *remote_nets;
137 dpavlin 4 };
138    
139     /* net.c: */
140     void net_generate_unique_mac(struct machine *, unsigned char *macbuf);
141     int net_ethernet_rx_avail(struct net *net, void *extra);
142     int net_ethernet_rx(struct net *net, void *extra,
143     unsigned char **packetp, int *lenp);
144     void net_ethernet_tx(struct net *net, void *extra,
145     unsigned char *packet, int len);
146     void net_dumpinfo(struct net *net);
147     void net_add_nic(struct net *net, void *extra, unsigned char *macaddr);
148     struct net *net_init(struct emul *emul, int init_flags,
149 dpavlin 10 char *ipv4addr, int netipv4len, char **remote, int n_remote,
150     int local_port);
151 dpavlin 4
152     /* Flag used to signify that this net should have a gateway: */
153     #define NET_INIT_FLAG_GATEWAY 1
154    
155    
156     /*
157     * This is for internal use in src/net.c:
158     */
159     struct ethernet_packet_link {
160     struct ethernet_packet_link *prev;
161     struct ethernet_packet_link *next;
162    
163     void *extra;
164     unsigned char *data;
165     int len;
166     };
167    
168 dpavlin 10 struct remote_net {
169     struct remote_net *next;
170 dpavlin 4
171 dpavlin 10 char *name;
172     struct in_addr ipv4_addr;
173     int portnr;
174     };
175    
176 dpavlin 4 #define TCP_OUTSIDE_TRYINGTOCONNECT 1
177     #define TCP_OUTSIDE_CONNECTED 2
178     #define TCP_OUTSIDE_DISCONNECTED 3
179     #define TCP_OUTSIDE_DISCONNECTED2 4
180    
181     #define TCP_INCOMING_BUF_LEN 2000
182    
183     #endif /* NET_H */
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