1 files changed, 447 insertions, 0 deletions
diff --git a/cmd/cmd_net.c b/cmd/cmd_net.c
new file mode 100644
index 0000000000..b2f3c7b709
--- /dev/null
+++ b/cmd/cmd_net.c
@@ -0,0 +1,447 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * Boot support
+ */
+#include <common.h>
+#include <command.h>
+#include <net.h>
+
+static int netboot_common(enum proto_t, cmd_tbl_t *, int, char * const []);
+
+static 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[])
+{
+	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]"
+);
+
+#ifdef CONFIG_CMD_TFTPPUT
+int do_tftpput(cmd_tbl_t *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(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)
+static 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)
+static 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 (net_gateway.s_addr) {
+		ip_to_string(net_gateway, tmp);
+		setenv("gatewayip", tmp);
+	}
+
+	if (net_netmask.s_addr) {
+		ip_to_string(net_netmask, tmp);
+		setenv("netmask", tmp);
+	}
+
+	if (net_hostname[0])
+		setenv("hostname", net_hostname);
+
+	if (net_root_path[0])
+		setenv("rootpath", net_root_path);
+
+	if (net_ip.s_addr) {
+		ip_to_string(net_ip, tmp);
+		setenv("ipaddr", tmp);
+	}
+#if !defined(CONFIG_BOOTP_SERVERIP)
+	/*
+	 * Only attempt to change serverip if net/bootp.c:BootpCopyNetParams()
+	 * could have set it
+	 */
+	if (net_server_ip.s_addr) {
+		ip_to_string(net_server_ip, tmp);
+		setenv("serverip", tmp);
+	}
+#endif
+	if (net_dns_server.s_addr) {
+		ip_to_string(net_dns_server, tmp);
+		setenv("dnsip", tmp);
+	}
+#if defined(CONFIG_BOOTP_DNS2)
+	if (net_dns_server2.s_addr) {
+		ip_to_string(net_dns_server2, tmp);
+		setenv("dnsip2", tmp);
+	}
+#endif
+	if (net_nis_domain[0])
+		setenv("domain", net_nis_domain);
+
+#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
+	if (net_ntp_time_offset) {
+		sprintf(tmp, "%d", net_ntp_time_offset);
+		setenv("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);
+		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 */
+	s = getenv("loadaddr");
+	if (s != 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(net_boot_file_name, argv[1],
+				      sizeof(net_boot_file_name));
+		break;
+
+	case 3:
+		load_addr = simple_strtoul(argv[1], NULL, 16);
+		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, &save_addr) < 0 ||
+		    strict_strtoul(argv[2], 16, &save_size) < 0) {
+			printf("Invalid address/size\n");
+			return CMD_RET_USAGE;
+		}
+		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;
+	}
+
+	/* flush cache */
+	flush_cache(load_addr, size);
+
+	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(cmd_tbl_t *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);
+		setenv("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);
+		setenv("nvlan", tmp);
+		net_native_vlan = cdp_native_vlan;
+	}
+}
+
+int do_cdp(cmd_tbl_t *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)
+int do_sntp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	char *toff;
+
+	if (argc < 2) {
+		net_ntp_server = getenv_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 = getenv("timeoffset");
+	if (toff == NULL)
+		net_ntp_time_offset = 0;
+	else
+		net_ntp_time_offset = simple_strtol(toff, NULL, 10);
+
+	if (net_loop(SNTP) < 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(cmd_tbl_t *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(cmd_tbl_t *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);
+	setenv("gatewayip", tmp);
+
+	ip_to_string(net_netmask, tmp);
+	setenv("netmask", tmp);
+
+	ip_to_string(net_ip, tmp);
+	setenv("ipaddr", tmp);
+	setenv("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 */