[u-boot.git] / cmd / net.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 */

/*
 * Boot support
 */
#include <common.h>
#include <bootstage.h>
#include <command.h>
#include <env.h>
#include <image.h>
#include <net.h>
#include <net/udp.h>
#include <net/sntp.h>

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

#ifdef CONFIG_CMD_BOOTP
static int do_bootp(struct cmd_tbl *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]"
);
#endif

#ifdef CONFIG_CMD_TFTPBOOT
int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	int ret;

	bootstage_mark_name(BOOTSTAGE_KERNELREAD_START, "tftp_start");
	ret = netboot_common(TFTPGET, cmdtp, argc, argv);
	bootstage_mark_name(BOOTSTAGE_KERNELREAD_STOP, "tftp_done");
	return ret;
}

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

#ifdef CONFIG_CMD_TFTPPUT
static int do_tftpput(struct cmd_tbl *cmdtp, int flag, int argc,
		      char *const argv[])
{
	return netboot_common(TFTPPUT, cmdtp, argc, argv);
}

U_BOOT_CMD(
	tftpput,	4,	1,	do_tftpput,
	"TFTP put command, for uploading files to a server",
	"Address Size [[hostIPaddr:]filename]"
);
#endif

#ifdef CONFIG_CMD_TFTPSRV
static int do_tftpsrv(struct cmd_tbl *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(struct cmd_tbl *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)
static int do_dhcp(struct cmd_tbl *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)
static int do_nfs(struct cmd_tbl *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 (net_gateway.s_addr) {
		ip_to_string(net_gateway, tmp);
		env_set("gatewayip", tmp);
	}

	if (net_netmask.s_addr) {
		ip_to_string(net_netmask, tmp);
		env_set("netmask", tmp);
	}

#ifdef CONFIG_CMD_BOOTP
	if (net_hostname[0])
		env_set("hostname", net_hostname);
#endif

#ifdef CONFIG_CMD_BOOTP
	if (net_root_path[0])
		env_set("rootpath", net_root_path);
#endif

	if (net_ip.s_addr) {
		ip_to_string(net_ip, tmp);
		env_set("ipaddr", tmp);
	}
#if !defined(CONFIG_BOOTP_SERVERIP)
	/*
	 * Only attempt to change serverip if net/bootp.c:store_net_params()
	 * could have set it
	 */
	if (net_server_ip.s_addr) {
		ip_to_string(net_server_ip, tmp);
		env_set("serverip", tmp);
	}
#endif
	if (net_dns_server.s_addr) {
		ip_to_string(net_dns_server, tmp);
		env_set("dnsip", tmp);
	}
#if defined(CONFIG_BOOTP_DNS2)
	if (net_dns_server2.s_addr) {
		ip_to_string(net_dns_server2, tmp);
		env_set("dnsip2", tmp);
	}
#endif
#ifdef CONFIG_CMD_BOOTP
	if (net_nis_domain[0])
		env_set("domain", net_nis_domain);
#endif

#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
	if (net_ntp_time_offset) {
		sprintf(tmp, "%d", net_ntp_time_offset);
		env_set("timeoffset", tmp);
	}
#endif
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
	if (net_ntp_server.s_addr) {
		ip_to_string(net_ntp_server, tmp);
		env_set("ntpserverip", tmp);
	}
#endif
}

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

	net_boot_file_name_explicit = false;

	/* pre-set image_load_addr */
	s = env_get("loadaddr");
	if (s != NULL)
		image_load_addr = simple_strtoul(s, NULL, 16);

	switch (argc) {
	case 1:
		/* refresh bootfile name from env */
		copy_filename(net_boot_file_name, env_get("bootfile"),
			      sizeof(net_boot_file_name));
		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]))) {
			image_load_addr = addr;
			/* refresh bootfile name from env */
			copy_filename(net_boot_file_name, env_get("bootfile"),
				      sizeof(net_boot_file_name));
		} else {
			net_boot_file_name_explicit = true;
			copy_filename(net_boot_file_name, argv[1],
				      sizeof(net_boot_file_name));
		}
		break;

	case 3:
		image_load_addr = simple_strtoul(argv[1], NULL, 16);
		net_boot_file_name_explicit = true;
		copy_filename(net_boot_file_name, argv[2],
			      sizeof(net_boot_file_name));

		break;

#ifdef CONFIG_CMD_TFTPPUT
	case 4:
		if (strict_strtoul(argv[1], 16, &image_save_addr) < 0 ||
		    strict_strtoul(argv[2], 16, &image_save_size) < 0) {
			printf("Invalid address/size\n");
			return CMD_RET_USAGE;
		}
		net_boot_file_name_explicit = true;
		copy_filename(net_boot_file_name, argv[3],
			      sizeof(net_boot_file_name));
		break;
#endif
	default:
		bootstage_error(BOOTSTAGE_ID_NET_START);
		return CMD_RET_USAGE;
	}
	bootstage_mark(BOOTSTAGE_ID_NET_START);

	size = net_loop(proto);
	if (size < 0) {
		bootstage_error(BOOTSTAGE_ID_NET_NETLOOP_OK);
		return CMD_RET_FAILURE;
	}
	bootstage_mark(BOOTSTAGE_ID_NET_NETLOOP_OK);

	/* net_loop ok, update environment */
	netboot_update_env();

	/* done if no file was loaded (no errors though) */
	if (size == 0) {
		bootstage_error(BOOTSTAGE_ID_NET_LOADED);
		return CMD_RET_SUCCESS;
	}

	bootstage_mark(BOOTSTAGE_ID_NET_LOADED);

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

	if (rcode == CMD_RET_SUCCESS)
		bootstage_mark(BOOTSTAGE_ID_NET_DONE);
	else
		bootstage_error(BOOTSTAGE_ID_NET_DONE_ERR);
	return rcode;
}

#if defined(CONFIG_CMD_PING)
static int do_ping(struct cmd_tbl *cmdtp, int flag, int argc,
		   char *const argv[])
{
	if (argc < 2)
		return CMD_RET_USAGE;

	net_ping_ip = string_to_ip(argv[1]);
	if (net_ping_ip.s_addr == 0)
		return CMD_RET_USAGE;

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

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

	return CMD_RET_SUCCESS;
}

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 (cdp_appliance_vlan != htons(-1)) {
		printf("CDP offered appliance VLAN %d\n",
		       ntohs(cdp_appliance_vlan));
		vlan_to_string(cdp_appliance_vlan, tmp);
		env_set("vlan", tmp);
		net_our_vlan = cdp_appliance_vlan;
	}

	if (cdp_native_vlan != htons(-1)) {
		printf("CDP offered native VLAN %d\n", ntohs(cdp_native_vlan));
		vlan_to_string(cdp_native_vlan, tmp);
		env_set("nvlan", tmp);
		net_native_vlan = cdp_native_vlan;
	}
}

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

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

	cdp_update_env();

	return CMD_RET_SUCCESS;
}

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

#if defined(CONFIG_CMD_SNTP)
static struct udp_ops sntp_ops = {
	.prereq = sntp_prereq,
	.start = sntp_start,
	.data = NULL,
};

int do_sntp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	char *toff;

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

	toff = env_get("timeoffset");
	if (toff == NULL)
		net_ntp_time_offset = 0;
	else
		net_ntp_time_offset = simple_strtol(toff, NULL, 10);

	if (udp_loop(&sntp_ops) < 0) {
		printf("SNTP failed: host %pI4 not responding\n",
		       &net_ntp_server);
		return CMD_RET_FAILURE;
	}

	return CMD_RET_SUCCESS;
}

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(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
	if (argc == 1)
		return CMD_RET_USAGE;

	/*
	 * 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 CMD_RET_FAILURE;
	}

	net_dns_resolve = argv[1];

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

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

	return CMD_RET_SUCCESS;
}

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

#endif	/* CONFIG_CMD_DNS */

#if defined(CONFIG_CMD_LINK_LOCAL)
static int do_link_local(struct cmd_tbl *cmdtp, int flag, int argc,
			 char *const argv[])
{
	char tmp[22];

	if (net_loop(LINKLOCAL) < 0)
		return CMD_RET_FAILURE;

	net_gateway.s_addr = 0;
	ip_to_string(net_gateway, tmp);
	env_set("gatewayip", tmp);

	ip_to_string(net_netmask, tmp);
	env_set("netmask", tmp);

	ip_to_string(net_ip, tmp);
	env_set("ipaddr", tmp);
	env_set("llipaddr", tmp); /* store this for next time */

	return CMD_RET_SUCCESS;
}

U_BOOT_CMD(
	linklocal,	1,	1,	do_link_local,
	"acquire a network IP address using the link-local protocol",
	""
);

#endif  /* CONFIG_CMD_LINK_LOCAL */
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
3863585b WD	2	/*
	3	* (C) Copyright 2000
	4	* Wolfgang Denk, DENX Software Engineering, [email protected].
3863585b WD	5	*/
	6
	7	/*
	8	* Boot support
	9	*/
	10	#include <common.h>
52f24238	11	#include <bootstage.h>
3863585b	12	#include <command.h>
9fb625ce	13	#include <env.h>
8e8ccfe1	14	#include <image.h>
3863585b	15	#include <net.h>
912ece4c PR	16	#include <net/udp.h>
912ece4c PR	17	#include <net/sntp.h>
3863585b	18
09140113	19	static int netboot_common(enum proto_t, struct cmd_tbl , int, char const []);
3863585b	20
d7a45eaf	21	#ifdef CONFIG_CMD_BOOTP
09140113 SG	22	static int do_bootp(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	23	char *const argv[])
3863585b	24	{
088f1b19	25	return netboot_common(BOOTP, cmdtp, argc, argv);
3863585b WD	26	}
3863585b WD	27
0d498393 WD	28	U_BOOT_CMD(
0d498393 WD	29	bootp, 3, 1, do_bootp,
2fb2604d	30	"boot image via network using BOOTP/TFTP protocol",
a89c33db	31	"[loadAddress] [[hostIPaddr:]bootfilename]"
8bde7f77	32	);
d7a45eaf	33	#endif
8bde7f77	34
d7a45eaf	35	#ifdef CONFIG_CMD_TFTPBOOT
09140113	36	int do_tftpb(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
3863585b	37	{
573f14fe SG	38	int ret;
	39
	40	bootstage_mark_name(BOOTSTAGE_KERNELREAD_START, "tftp_start");
	41	ret = netboot_common(TFTPGET, cmdtp, argc, argv);
	42	bootstage_mark_name(BOOTSTAGE_KERNELREAD_STOP, "tftp_done");
	43	return ret;
3863585b WD	44	}
3863585b WD	45
0d498393 WD	46	U_BOOT_CMD(
0d498393 WD	47	tftpboot, 3, 1, do_tftpb,
2fb2604d	48	"boot image via network using TFTP protocol",
a89c33db	49	"[loadAddress] [[hostIPaddr:]bootfilename]"
8bde7f77	50	);
d7a45eaf	51	#endif
8bde7f77	52
2d46cf29	53	#ifdef CONFIG_CMD_TFTPPUT
09140113 SG	54	static int do_tftpput(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	55	char *const argv[])
2d46cf29	56	{
85848f03	57	return netboot_common(TFTPPUT, cmdtp, argc, argv);
2d46cf29 SG	58	}
	59
	60	U_BOOT_CMD(
	61	tftpput, 4, 1, do_tftpput,
	62	"TFTP put command, for uploading files to a server",
	63	"Address Size [[hostIPaddr:]filename]"
	64	);
	65	#endif
	66
7a83af07	67	#ifdef CONFIG_CMD_TFTPSRV
09140113 SG	68	static int do_tftpsrv(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	69	char *const argv[])
7a83af07 LC	70	{
	71	return netboot_common(TFTPSRV, cmdtp, argc, argv);
	72	}
	73
	74	U_BOOT_CMD(
	75	tftpsrv, 2, 1, do_tftpsrv,
	76	"act as a TFTP server and boot the first received file",
	77	"[loadAddress]\n"
	78	"Listen for an incoming TFTP transfer, receive a file and boot it.\n"
	79	"The transfer is aborted if a transfer has not been started after\n"
	80	"about 50 seconds or if Ctrl-C is pressed."
	81	);
	82	#endif
	83
	84
bf6cb247	85	#ifdef CONFIG_CMD_RARP
09140113	86	int do_rarpb(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
3863585b	87	{
088f1b19	88	return netboot_common(RARP, cmdtp, argc, argv);
3863585b WD	89	}
3863585b WD	90
0d498393 WD	91	U_BOOT_CMD(
0d498393 WD	92	rarpboot, 3, 1, do_rarpb,
2fb2604d	93	"boot image via network using RARP/TFTP protocol",
a89c33db	94	"[loadAddress] [[hostIPaddr:]bootfilename]"
8bde7f77	95	);
bf6cb247	96	#endif
8bde7f77	97
c76fe474	98	#if defined(CONFIG_CMD_DHCP)
09140113 SG	99	static int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	100	char *const argv[])
3863585b WD	101	{
	102	return netboot_common(DHCP, cmdtp, argc, argv);
	103	}
8bde7f77	104
0d498393 WD	105	U_BOOT_CMD(
0d498393 WD	106	dhcp, 3, 1, do_dhcp,
2fb2604d	107	"boot image via network using DHCP/TFTP protocol",
a89c33db	108	"[loadAddress] [[hostIPaddr:]bootfilename]"
8bde7f77	109	);
90253178	110	#endif
3863585b	111
c76fe474	112	#if defined(CONFIG_CMD_NFS)
09140113 SG	113	static int do_nfs(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	114	char *const argv[])
cbd8a35c WD	115	{
	116	return netboot_common(NFS, cmdtp, argc, argv);
	117	}
	118
	119	U_BOOT_CMD(
	120	nfs, 3, 1, do_nfs,
2fb2604d	121	"boot image via network using NFS protocol",
a89c33db	122	"[loadAddress] [[hostIPaddr:]bootfilename]"
cbd8a35c	123	);
90253178	124	#endif
cbd8a35c	125
088f1b19	126	static void netboot_update_env(void)
3863585b	127	{
6e592385	128	char tmp[22];
3863585b	129
049a95a7 JH	130	if (net_gateway.s_addr) {
049a95a7 JH	131	ip_to_string(net_gateway, tmp);
382bee57	132	env_set("gatewayip", tmp);
6e592385	133	}
3863585b	134
049a95a7 JH	135	if (net_netmask.s_addr) {
049a95a7 JH	136	ip_to_string(net_netmask, tmp);
382bee57	137	env_set("netmask", tmp);
6e592385	138	}
3863585b	139
808f13d8	140	#ifdef CONFIG_CMD_BOOTP
586cbe51	141	if (net_hostname[0])
382bee57	142	env_set("hostname", net_hostname);
808f13d8	143	#endif
3863585b	144
808f13d8	145	#ifdef CONFIG_CMD_BOOTP
586cbe51	146	if (net_root_path[0])
382bee57	147	env_set("rootpath", net_root_path);
808f13d8	148	#endif
3863585b	149
049a95a7 JH	150	if (net_ip.s_addr) {
049a95a7 JH	151	ip_to_string(net_ip, tmp);
382bee57	152	env_set("ipaddr", tmp);
6e592385	153	}
a3e1a727 JH	154	#if !defined(CONFIG_BOOTP_SERVERIP)
a3e1a727 JH	155	/*
ff78ad28	156	* Only attempt to change serverip if net/bootp.c:store_net_params()
a3e1a727 JH	157	* could have set it
a3e1a727 JH	158	*/
049a95a7 JH	159	if (net_server_ip.s_addr) {
049a95a7 JH	160	ip_to_string(net_server_ip, tmp);
382bee57	161	env_set("serverip", tmp);
6e592385	162	}
a3e1a727	163	#endif
049a95a7 JH	164	if (net_dns_server.s_addr) {
049a95a7 JH	165	ip_to_string(net_dns_server, tmp);
382bee57	166	env_set("dnsip", tmp);
6e592385	167	}
1fe80d79	168	#if defined(CONFIG_BOOTP_DNS2)
049a95a7 JH	169	if (net_dns_server2.s_addr) {
049a95a7 JH	170	ip_to_string(net_dns_server2, tmp);
382bee57	171	env_set("dnsip2", tmp);
6e592385	172	}
fe389a82	173	#endif
808f13d8	174	#ifdef CONFIG_CMD_BOOTP
586cbe51	175	if (net_nis_domain[0])
382bee57	176	env_set("domain", net_nis_domain);
808f13d8	177	#endif
ea287deb	178
4fd5055f	179	#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
bc0571fc JH	180	if (net_ntp_time_offset) {
bc0571fc JH	181	sprintf(tmp, "%d", net_ntp_time_offset);
382bee57	182	env_set("timeoffset", tmp);
ea287deb WD	183	}
ea287deb WD	184	#endif
4fd5055f	185	#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
049a95a7 JH	186	if (net_ntp_server.s_addr) {
049a95a7 JH	187	ip_to_string(net_ntp_server, tmp);
382bee57	188	env_set("ntpserverip", tmp);
ea287deb WD	189	}
ea287deb WD	190	#endif
3863585b	191	}
6e592385	192
09140113 SG	193	static int netboot_common(enum proto_t proto, struct cmd_tbl *cmdtp, int argc,
09140113 SG	194	char *const argv[])
3863585b WD	195	{
3863585b WD	196	char *s;
2e4970d8	197	char *end;
3863585b WD	198	int rcode = 0;
3863585b WD	199	int size;
2e4970d8	200	ulong addr;
3863585b	201
449312c1 AG	202	net_boot_file_name_explicit = false;
449312c1 AG	203
bb872dd9	204	/* pre-set image_load_addr */
00caae6d	205	s = env_get("loadaddr");
4fd5055f	206	if (s != NULL)
bb872dd9	207	image_load_addr = simple_strtoul(s, NULL, 16);
3863585b WD	208
	209	switch (argc) {
	210	case 1:
f43308fa JH	211	/* refresh bootfile name from env */
	212	copy_filename(net_boot_file_name, env_get("bootfile"),
	213	sizeof(net_boot_file_name));
3863585b WD	214	break;
3863585b WD	215
2e4970d8 PT	216	case 2: /*
	217	* Only one arg - accept two forms:
	218	* Just load address, or just boot file name. The latter
	219	* form must be written in a format which can not be
	220	* mis-interpreted as a valid number.
3863585b	221	*/
2e4970d8	222	addr = simple_strtoul(argv[1], &end, 16);
449312c1	223	if (end == (argv[1] + strlen(argv[1]))) {
bb872dd9	224	image_load_addr = addr;
f43308fa JH	225	/* refresh bootfile name from env */
	226	copy_filename(net_boot_file_name, env_get("bootfile"),
	227	sizeof(net_boot_file_name));
449312c1 AG	228	} else {
449312c1 AG	229	net_boot_file_name_explicit = true;
1411157d JH	230	copy_filename(net_boot_file_name, argv[1],
1411157d JH	231	sizeof(net_boot_file_name));
449312c1	232	}
3863585b WD	233	break;
3863585b WD	234
4fd5055f	235	case 3:
bb872dd9	236	image_load_addr = simple_strtoul(argv[1], NULL, 16);
449312c1	237	net_boot_file_name_explicit = true;
1411157d JH	238	copy_filename(net_boot_file_name, argv[2],
1411157d JH	239	sizeof(net_boot_file_name));
3863585b WD	240
	241	break;
	242
2d46cf29 SG	243	#ifdef CONFIG_CMD_TFTPPUT
2d46cf29 SG	244	case 4:
bb872dd9 SG	245	if (strict_strtoul(argv[1], 16, &image_save_addr) < 0 \|\|
bb872dd9 SG	246	strict_strtoul(argv[2], 16, &image_save_size) < 0) {
38bd80b4	247	printf("Invalid address/size\n");
85848f03	248	return CMD_RET_USAGE;
38bd80b4	249	}
449312c1	250	net_boot_file_name_explicit = true;
1411157d JH	251	copy_filename(net_boot_file_name, argv[3],
1411157d JH	252	sizeof(net_boot_file_name));
2d46cf29 SG	253	break;
2d46cf29 SG	254	#endif
47e26b1b	255	default:
770605e4	256	bootstage_error(BOOTSTAGE_ID_NET_START);
4c12eeb8	257	return CMD_RET_USAGE;
3863585b	258	}
770605e4	259	bootstage_mark(BOOTSTAGE_ID_NET_START);
3863585b	260
bc0571fc	261	size = net_loop(proto);
4fd5055f	262	if (size < 0) {
770605e4	263	bootstage_error(BOOTSTAGE_ID_NET_NETLOOP_OK);
85848f03	264	return CMD_RET_FAILURE;
566a494f	265	}
770605e4	266	bootstage_mark(BOOTSTAGE_ID_NET_NETLOOP_OK);
3863585b	267
bc0571fc	268	/* net_loop ok, update environment */
3863585b WD	269	netboot_update_env();
3863585b WD	270
eb9401e3	271	/* done if no file was loaded (no errors though) */
566a494f	272	if (size == 0) {
770605e4	273	bootstage_error(BOOTSTAGE_ID_NET_LOADED);
85848f03	274	return CMD_RET_SUCCESS;
566a494f	275	}
eb9401e3	276
770605e4	277	bootstage_mark(BOOTSTAGE_ID_NET_LOADED);
c8e66db7	278
67d668bf	279	rcode = bootm_maybe_autostart(cmdtp, argv[0]);
3863585b	280
85848f03	281	if (rcode == CMD_RET_SUCCESS)
770605e4	282	bootstage_mark(BOOTSTAGE_ID_NET_DONE);
85848f03 JH	283	else
85848f03 JH	284	bootstage_error(BOOTSTAGE_ID_NET_DONE_ERR);
3863585b WD	285	return rcode;
	286	}
	287
c76fe474	288	#if defined(CONFIG_CMD_PING)
09140113 SG	289	static int do_ping(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	290	char *const argv[])
73a8b27c WD	291	{
73a8b27c WD	292	if (argc < 2)
85848f03	293	return CMD_RET_USAGE;
73a8b27c	294
049a95a7 JH	295	net_ping_ip = string_to_ip(argv[1]);
049a95a7 JH	296	if (net_ping_ip.s_addr == 0)
4c12eeb8	297	return CMD_RET_USAGE;
73a8b27c	298
bc0571fc	299	if (net_loop(PING) < 0) {
73a8b27c	300	printf("ping failed; host %s is not alive\n", argv[1]);
85848f03	301	return CMD_RET_FAILURE;
73a8b27c WD	302	}
	303
	304	printf("host %s is alive\n", argv[1]);
	305
85848f03	306	return CMD_RET_SUCCESS;
73a8b27c	307	}
6dff5529 WD	308
	309	U_BOOT_CMD(
	310	ping, 2, 1, do_ping,
2fb2604d	311	"send ICMP ECHO_REQUEST to network host",
a89c33db	312	"pingAddress"
6dff5529	313	);
90253178	314	#endif
73a8b27c	315
c76fe474	316	#if defined(CONFIG_CMD_CDP)
a3d991bd WD	317
	318	static void cdp_update_env(void)
	319	{
	320	char tmp[16];
	321
6aede5b7 JH	322	if (cdp_appliance_vlan != htons(-1)) {
	323	printf("CDP offered appliance VLAN %d\n",
	324	ntohs(cdp_appliance_vlan));
4fd5055f	325	vlan_to_string(cdp_appliance_vlan, tmp);
382bee57	326	env_set("vlan", tmp);
4fd5055f	327	net_our_vlan = cdp_appliance_vlan;
a3d991bd WD	328	}
a3d991bd WD	329
6aede5b7 JH	330	if (cdp_native_vlan != htons(-1)) {
6aede5b7 JH	331	printf("CDP offered native VLAN %d\n", ntohs(cdp_native_vlan));
4fd5055f	332	vlan_to_string(cdp_native_vlan, tmp);
382bee57	333	env_set("nvlan", tmp);
4fd5055f	334	net_native_vlan = cdp_native_vlan;
a3d991bd	335	}
a3d991bd WD	336	}
a3d991bd WD	337
09140113	338	int do_cdp(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
a3d991bd WD	339	{
	340	int r;
	341
bc0571fc	342	r = net_loop(CDP);
a3d991bd WD	343	if (r < 0) {
a3d991bd WD	344	printf("cdp failed; perhaps not a CISCO switch?\n");
85848f03	345	return CMD_RET_FAILURE;
a3d991bd WD	346	}
	347
	348	cdp_update_env();
	349
85848f03	350	return CMD_RET_SUCCESS;
a3d991bd WD	351	}
	352
	353	U_BOOT_CMD(
	354	cdp, 1, 1, do_cdp,
ec5c04cd	355	"Perform CDP network configuration",
4b58266e	356	"\n"
a3d991bd	357	);
90253178	358	#endif
a3d991bd	359
c76fe474	360	#if defined(CONFIG_CMD_SNTP)
912ece4c PR	361	static struct udp_ops sntp_ops = {
	362	.prereq = sntp_prereq,
	363	.start = sntp_start,
	364	.data = NULL,
	365	};
	366
09140113	367	int do_sntp(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
ea287deb WD	368	{
	369	char *toff;
	370
	371	if (argc < 2) {
723806cc	372	net_ntp_server = env_get_ip("ntpserverip");
049a95a7	373	if (net_ntp_server.s_addr == 0) {
088f1b19	374	printf("ntpserverip not set\n");
85848f03	375	return CMD_RET_FAILURE;
ea287deb WD	376	}
ea287deb WD	377	} else {
049a95a7 JH	378	net_ntp_server = string_to_ip(argv[1]);
049a95a7 JH	379	if (net_ntp_server.s_addr == 0) {
088f1b19	380	printf("Bad NTP server IP address\n");
85848f03	381	return CMD_RET_FAILURE;
ea287deb WD	382	}
	383	}
	384
00caae6d	385	toff = env_get("timeoffset");
088f1b19	386	if (toff == NULL)
bc0571fc	387	net_ntp_time_offset = 0;
088f1b19	388	else
bc0571fc	389	net_ntp_time_offset = simple_strtol(toff, NULL, 10);
ea287deb	390
912ece4c	391	if (udp_loop(&sntp_ops) < 0) {
d6840e3d	392	printf("SNTP failed: host %pI4 not responding\n",
4fd5055f	393	&net_ntp_server);
85848f03	394	return CMD_RET_FAILURE;
ea287deb WD	395	}
ea287deb WD	396
85848f03	397	return CMD_RET_SUCCESS;
ea287deb WD	398	}
	399
	400	U_BOOT_CMD(
	401	sntp, 2, 1, do_sntp,
2fb2604d	402	"synchronize RTC via network",
ea287deb WD	403	"[NTP server IP]\n"
ea287deb WD	404	);
90253178	405	#endif
1a32bf41 RG	406
1a32bf41 RG	407	#if defined(CONFIG_CMD_DNS)
09140113	408	int do_dns(struct cmd_tbl cmdtp, int flag, int argc, char const argv[])
1a32bf41	409	{
47e26b1b	410	if (argc == 1)
4c12eeb8	411	return CMD_RET_USAGE;
1a32bf41 RG	412
	413	/*
	414	* We should check for a valid hostname:
	415	* - Each label must be between 1 and 63 characters long
	416	* - the entire hostname has a maximum of 255 characters
	417	* - only the ASCII letters 'a' through 'z' (case-insensitive),
	418	* the digits '0' through '9', and the hyphen
	419	* - cannot begin or end with a hyphen
	420	* - no other symbols, punctuation characters, or blank spaces are
	421	* permitted
	422	* but hey - this is a minimalist implmentation, so only check length
	423	* and let the name server deal with things.
	424	*/
	425	if (strlen(argv[1]) >= 255) {
	426	printf("dns error: hostname too long\n");
85848f03	427	return CMD_RET_FAILURE;
1a32bf41 RG	428	}
1a32bf41 RG	429
786eac5f	430	net_dns_resolve = argv[1];
1a32bf41 RG	431
1a32bf41 RG	432	if (argc == 3)
786eac5f	433	net_dns_env_var = argv[2];
1a32bf41	434	else
786eac5f	435	net_dns_env_var = NULL;
1a32bf41	436
bc0571fc	437	if (net_loop(DNS) < 0) {
1a32bf41	438	printf("dns lookup of %s failed, check setup\n", argv[1]);
85848f03	439	return CMD_RET_FAILURE;
1a32bf41 RG	440	}
1a32bf41 RG	441
85848f03	442	return CMD_RET_SUCCESS;
1a32bf41 RG	443	}
	444
	445	U_BOOT_CMD(
	446	dns, 3, 1, do_dns,
	447	"lookup the IP of a hostname",
	448	"hostname [envvar]"
	449	);
	450
	451	#endif /* CONFIG_CMD_DNS */
d22c338e JH	452
d22c338e JH	453	#if defined(CONFIG_CMD_LINK_LOCAL)
09140113 SG	454	static int do_link_local(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	455	char *const argv[])
d22c338e JH	456	{
	457	char tmp[22];
	458
bc0571fc	459	if (net_loop(LINKLOCAL) < 0)
85848f03	460	return CMD_RET_FAILURE;
d22c338e	461
049a95a7 JH	462	net_gateway.s_addr = 0;
049a95a7 JH	463	ip_to_string(net_gateway, tmp);
382bee57	464	env_set("gatewayip", tmp);
d22c338e	465
049a95a7	466	ip_to_string(net_netmask, tmp);
382bee57	467	env_set("netmask", tmp);
d22c338e	468
049a95a7	469	ip_to_string(net_ip, tmp);
382bee57 SG	470	env_set("ipaddr", tmp);
382bee57 SG	471	env_set("llipaddr", tmp); /* store this for next time */
d22c338e	472
85848f03	473	return CMD_RET_SUCCESS;
d22c338e JH	474	}
	475
	476	U_BOOT_CMD(
	477	linklocal, 1, 1, do_link_local,
	478	"acquire a network IP address using the link-local protocol",
	479	""
	480	);
	481
	482	#endif /* CONFIG_CMD_LINK_LOCAL */