summaryrefslogtreecommitdiff
path: root/common/cmd_net.c
blob: f610385b5d885421049d54fb3aa93c7a4162686a (plain)
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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * Boot support
 */
#include <common.h>
#include <command.h>
#include <net.h>

static int netboot_common(enum proto_t, cmd_tbl_t *, int, char * const []);

int do_bootp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	return netboot_common (BOOTP, cmdtp, argc, argv);
}

U_BOOT_CMD(
	bootp,	3,	1,	do_bootp,
	"boot image via network using BOOTP/TFTP protocol",
	"[loadAddress] [[hostIPaddr:]bootfilename]"
);

int do_tftpb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	return netboot_common(TFTPGET, cmdtp, argc, argv);
}

U_BOOT_CMD(
	tftpboot,	3,	1,	do_tftpb,
	"boot image via network using TFTP protocol",
	"[loadAddress] [[hostIPaddr:]bootfilename]"
);

#ifdef CONFIG_CMD_TFTPSRV
static int do_tftpsrv(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
	return netboot_common(TFTPSRV, cmdtp, argc, argv);
}

U_BOOT_CMD(
	tftpsrv,	2,	1,	do_tftpsrv,
	"act as a TFTP server and boot the first received file",
	"[loadAddress]\n"
	"Listen for an incoming TFTP transfer, receive a file and boot it.\n"
	"The transfer is aborted if a transfer has not been started after\n"
	"about 50 seconds or if Ctrl-C is pressed."
);
#endif


#ifdef CONFIG_CMD_RARP
int do_rarpb (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	return netboot_common (RARP, cmdtp, argc, argv);
}

U_BOOT_CMD(
	rarpboot,	3,	1,	do_rarpb,
	"boot image via network using RARP/TFTP protocol",
	"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif

#if defined(CONFIG_CMD_DHCP)
int do_dhcp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	return netboot_common(DHCP, cmdtp, argc, argv);
}

U_BOOT_CMD(
	dhcp,	3,	1,	do_dhcp,
	"boot image via network using DHCP/TFTP protocol",
	"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif

#if defined(CONFIG_CMD_NFS)
int do_nfs (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	return netboot_common(NFS, cmdtp, argc, argv);
}

U_BOOT_CMD(
	nfs,	3,	1,	do_nfs,
	"boot image via network using NFS protocol",
	"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif

static void netboot_update_env (void)
{
	char tmp[22];

	if (NetOurGatewayIP) {
		ip_to_string (NetOurGatewayIP, tmp);
		setenv ("gatewayip", tmp);
	}

	if (NetOurSubnetMask) {
		ip_to_string (NetOurSubnetMask, tmp);
		setenv ("netmask", tmp);
	}

	if (NetOurHostName[0])
		setenv ("hostname", NetOurHostName);

	if (NetOurRootPath[0])
		setenv ("rootpath", NetOurRootPath);

	if (NetOurIP) {
		ip_to_string (NetOurIP, tmp);
		setenv ("ipaddr", tmp);
	}

	if (NetServerIP) {
		ip_to_string (NetServerIP, tmp);
		setenv ("serverip", tmp);
	}

	if (NetOurDNSIP) {
		ip_to_string (NetOurDNSIP, tmp);
		setenv ("dnsip", tmp);
	}
#if defined(CONFIG_BOOTP_DNS2)
	if (NetOurDNS2IP) {
		ip_to_string (NetOurDNS2IP, tmp);
		setenv ("dnsip2", tmp);
	}
#endif
	if (NetOurNISDomain[0])
		setenv ("domain", NetOurNISDomain);

#if defined(CONFIG_CMD_SNTP) \
    && defined(CONFIG_BOOTP_TIMEOFFSET)
	if (NetTimeOffset) {
		sprintf (tmp, "%d", NetTimeOffset);
		setenv ("timeoffset", tmp);
	}
#endif
#if defined(CONFIG_CMD_SNTP) \
    && defined(CONFIG_BOOTP_NTPSERVER)
	if (NetNtpServerIP) {
		ip_to_string (NetNtpServerIP, tmp);
		setenv ("ntpserverip", tmp);
	}
#endif
}

static int netboot_common(enum proto_t proto, cmd_tbl_t *cmdtp, int argc,
		char * const argv[])
{
	char *s;
	char *end;
	int   rcode = 0;
	int   size;
	ulong addr;

	/* pre-set load_addr */
	if ((s = getenv("loadaddr")) != NULL) {
		load_addr = simple_strtoul(s, NULL, 16);
	}

	switch (argc) {
	case 1:
		break;

	case 2:	/*
		 * Only one arg - accept two forms:
		 * Just load address, or just boot file name. The latter
		 * form must be written in a format which can not be
		 * mis-interpreted as a valid number.
		 */
		addr = simple_strtoul(argv[1], &end, 16);
		if (end == (argv[1] + strlen(argv[1])))
			load_addr = addr;
		else
			copy_filename(BootFile, argv[1], sizeof(BootFile));
		break;

	case 3:	load_addr = simple_strtoul(argv[1], NULL, 16);
		copy_filename (BootFile, argv[2], sizeof(BootFile));

		break;

	default:
		show_boot_progress (-80);
		return cmd_usage(cmdtp);
	}

	show_boot_progress (80);
	if ((size = NetLoop(proto)) < 0) {
		show_boot_progress (-81);
		return 1;
	}

	show_boot_progress (81);
	/* NetLoop ok, update environment */
	netboot_update_env();

	/* done if no file was loaded (no errors though) */
	if (size == 0) {
		show_boot_progress (-82);
		return 0;
	}

	/* flush cache */
	flush_cache(load_addr, size);

	show_boot_progress(82);
	rcode = bootm_maybe_autostart(cmdtp, argv[0]);

	if (rcode < 0)
		show_boot_progress (-83);
	else
		show_boot_progress (84);
	return rcode;
}

#if defined(CONFIG_CMD_PING)
int do_ping (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	if (argc < 2)
		return -1;

	NetPingIP = string_to_ip(argv[1]);
	if (NetPingIP == 0)
		return cmd_usage(cmdtp);

	if (NetLoop(PING) < 0) {
		printf("ping failed; host %s is not alive\n", argv[1]);
		return 1;
	}

	printf("host %s is alive\n", argv[1]);

	return 0;
}

U_BOOT_CMD(
	ping,	2,	1,	do_ping,
	"send ICMP ECHO_REQUEST to network host",
	"pingAddress"
);
#endif

#if defined(CONFIG_CMD_CDP)

static void cdp_update_env(void)
{
	char tmp[16];

	if (CDPApplianceVLAN != htons(-1)) {
		printf("CDP offered appliance VLAN %d\n", ntohs(CDPApplianceVLAN));
		VLAN_to_string(CDPApplianceVLAN, tmp);
		setenv("vlan", tmp);
		NetOurVLAN = CDPApplianceVLAN;
	}

	if (CDPNativeVLAN != htons(-1)) {
		printf("CDP offered native VLAN %d\n", ntohs(CDPNativeVLAN));
		VLAN_to_string(CDPNativeVLAN, tmp);
		setenv("nvlan", tmp);
		NetOurNativeVLAN = CDPNativeVLAN;
	}

}

int do_cdp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	int r;

	r = NetLoop(CDP);
	if (r < 0) {
		printf("cdp failed; perhaps not a CISCO switch?\n");
		return 1;
	}

	cdp_update_env();

	return 0;
}

U_BOOT_CMD(
	cdp,	1,	1,	do_cdp,
	"Perform CDP network configuration",
	"\n"
);
#endif

#if defined(CONFIG_CMD_SNTP)
int do_sntp (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	char *toff;

	if (argc < 2) {
		NetNtpServerIP = getenv_IPaddr ("ntpserverip");
		if (NetNtpServerIP == 0) {
			printf ("ntpserverip not set\n");
			return (1);
		}
	} else {
		NetNtpServerIP = string_to_ip(argv[1]);
		if (NetNtpServerIP == 0) {
			printf ("Bad NTP server IP address\n");
			return (1);
		}
	}

	toff = getenv ("timeoffset");
	if (toff == NULL) NetTimeOffset = 0;
	else NetTimeOffset = simple_strtol (toff, NULL, 10);

	if (NetLoop(SNTP) < 0) {
		printf("SNTP failed: host %pI4 not responding\n",
			&NetNtpServerIP);
		return 1;
	}

	return 0;
}

U_BOOT_CMD(
	sntp,	2,	1,	do_sntp,
	"synchronize RTC via network",
	"[NTP server IP]\n"
);
#endif

#if defined(CONFIG_CMD_DNS)
int do_dns(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	if (argc == 1)
		return cmd_usage(cmdtp);

	/*
	 * We should check for a valid hostname:
	 * - Each label must be between 1 and 63 characters long
	 * - the entire hostname has a maximum of 255 characters
	 * - only the ASCII letters 'a' through 'z' (case-insensitive),
	 *   the digits '0' through '9', and the hyphen
	 * - cannot begin or end with a hyphen
	 * - no other symbols, punctuation characters, or blank spaces are
	 *   permitted
	 * but hey - this is a minimalist implmentation, so only check length
	 * and let the name server deal with things.
	 */
	if (strlen(argv[1]) >= 255) {
		printf("dns error: hostname too long\n");
		return 1;
	}

	NetDNSResolve = argv[1];

	if (argc == 3)
		NetDNSenvvar = argv[2];
	else
		NetDNSenvvar = NULL;

	if (NetLoop(DNS) < 0) {
		printf("dns lookup of %s failed, check setup\n", argv[1]);
		return 1;
	}

	return 0;
}

U_BOOT_CMD(
	dns,	3,	1,	do_dns,
	"lookup the IP of a hostname",
	"hostname [envvar]"
);

#endif	/* CONFIG_CMD_DNS */