1 // SPDX-License-Identifier: GPL-2.0+
7 #define LOG_CATEGORY UCLASS_ETH
12 #include <bootstage.h>
15 #include <dm/devres.h>
25 static int netboot_common(enum proto_t, struct cmd_tbl *, int, char * const []);
27 #ifdef CONFIG_CMD_BOOTP
28 static int do_bootp(struct cmd_tbl *cmdtp, int flag, int argc,
31 return netboot_common(BOOTP, cmdtp, argc, argv);
35 bootp, 3, 1, do_bootp,
36 "boot image via network using BOOTP/TFTP protocol",
37 "[loadAddress] [[hostIPaddr:]bootfilename]"
41 #ifdef CONFIG_CMD_TFTPBOOT
42 int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
46 bootstage_mark_name(BOOTSTAGE_KERNELREAD_START, "tftp_start");
47 ret = netboot_common(TFTPGET, cmdtp, argc, argv);
48 bootstage_mark_name(BOOTSTAGE_KERNELREAD_STOP, "tftp_done");
52 #if IS_ENABLED(CONFIG_IPV6)
54 tftpboot, 4, 1, do_tftpb,
55 "boot image via network using TFTP protocol\n"
56 "To use IPv6 add -ipv6 parameter or use IPv6 hostIPaddr framed "
58 "[loadAddress] [[hostIPaddr:]bootfilename] [" USE_IP6_CMD_PARAM "]"
62 tftpboot, 3, 1, do_tftpb,
63 "load file via network using TFTP protocol",
64 "[loadAddress] [[hostIPaddr:]bootfilename]"
69 #ifdef CONFIG_CMD_TFTPPUT
70 static int do_tftpput(struct cmd_tbl *cmdtp, int flag, int argc,
73 return netboot_common(TFTPPUT, cmdtp, argc, argv);
77 tftpput, 4, 1, do_tftpput,
78 "TFTP put command, for uploading files to a server",
79 "Address Size [[hostIPaddr:]filename]"
83 #ifdef CONFIG_CMD_TFTPSRV
84 static int do_tftpsrv(struct cmd_tbl *cmdtp, int flag, int argc,
87 return netboot_common(TFTPSRV, cmdtp, argc, argv);
91 tftpsrv, 2, 1, do_tftpsrv,
92 "act as a TFTP server and boot the first received file",
94 "Listen for an incoming TFTP transfer, receive a file and boot it.\n"
95 "The transfer is aborted if a transfer has not been started after\n"
96 "about 50 seconds or if Ctrl-C is pressed."
100 #ifdef CONFIG_CMD_RARP
101 int do_rarpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
103 return netboot_common(RARP, cmdtp, argc, argv);
107 rarpboot, 3, 1, do_rarpb,
108 "boot image via network using RARP/TFTP protocol",
109 "[loadAddress] [[hostIPaddr:]bootfilename]"
113 #if defined(CONFIG_CMD_DHCP6)
114 static int do_dhcp6(struct cmd_tbl *cmdtp, int flag, int argc,
119 char *dhcp_argv[] = {NULL, NULL, NULL, NULL};
121 /* Add -ipv6 flag for autoload */
122 for (i = 0; i < argc; i++)
123 dhcp_argv[i] = argv[i];
124 dhcp_argc = argc + 1;
125 dhcp_argv[dhcp_argc - 1] = USE_IP6_CMD_PARAM;
127 return netboot_common(DHCP6, cmdtp, dhcp_argc, dhcp_argv);
130 U_BOOT_CMD(dhcp6, 3, 1, do_dhcp6,
131 "boot image via network using DHCPv6/TFTP protocol.\n"
132 "Use IPv6 hostIPaddr framed with [] brackets",
133 "[loadAddress] [[hostIPaddr:]bootfilename]");
136 #if defined(CONFIG_CMD_DHCP)
137 static int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc,
140 return netboot_common(DHCP, cmdtp, argc, argv);
145 "boot image via network using DHCP/TFTP protocol",
146 "[loadAddress] [[hostIPaddr:]bootfilename]"
149 int dhcp_run(ulong addr, const char *fname, bool autoload)
151 char *dhcp_argv[] = {"dhcp", NULL, (char *)fname, NULL};
152 struct cmd_tbl cmdtp = {}; /* dummy */
157 log_debug("addr=%lx, fname=%s, autoload=%d\n", addr, fname, autoload);
158 old_autoload = env_get_yesno("autoload");
159 ret = env_set("autoload", autoload ? "y" : "n");
161 return log_msg_ret("en1", -EINVAL);
164 sprintf(file_addr, "%lx", addr);
165 dhcp_argv[1] = file_addr;
168 result = do_dhcp(&cmdtp, 0, !autoload ? 1 : fname ? 3 : 2, dhcp_argv);
170 ret = env_set("autoload", old_autoload == -1 ? NULL :
171 old_autoload ? "y" : "n");
173 return log_msg_ret("en2", -EINVAL);
176 return log_msg_ret("res", -ENOENT);
182 #if defined(CONFIG_CMD_NFS)
183 static int do_nfs(struct cmd_tbl *cmdtp, int flag, int argc,
186 return netboot_common(NFS, cmdtp, argc, argv);
191 "boot image via network using NFS protocol",
192 "[loadAddress] [[hostIPaddr:]bootfilename]"
196 #if defined(CONFIG_CMD_WGET)
197 static int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
199 wget_info = &default_wget_info;
201 return netboot_common(WGET, cmdtp, argc, argv);
206 "boot image via network using HTTP protocol",
207 "[loadAddress] [[hostIPaddr:]path and image name]"
211 static void netboot_update_env(void)
215 if (net_gateway.s_addr) {
216 ip_to_string(net_gateway, tmp);
217 env_set("gatewayip", tmp);
220 if (net_netmask.s_addr) {
221 ip_to_string(net_netmask, tmp);
222 env_set("netmask", tmp);
225 #ifdef CONFIG_CMD_BOOTP
227 env_set("hostname", net_hostname);
230 #ifdef CONFIG_CMD_BOOTP
231 if (net_root_path[0])
232 env_set("rootpath", net_root_path);
236 ip_to_string(net_ip, tmp);
237 env_set("ipaddr", tmp);
240 * Only attempt to change serverip if net/bootp.c:store_net_params()
243 if (!IS_ENABLED(CONFIG_BOOTP_SERVERIP) && net_server_ip.s_addr) {
244 ip_to_string(net_server_ip, tmp);
245 env_set("serverip", tmp);
247 if (net_dns_server.s_addr) {
248 ip_to_string(net_dns_server, tmp);
249 env_set("dnsip", tmp);
251 #if defined(CONFIG_BOOTP_DNS2)
252 if (net_dns_server2.s_addr) {
253 ip_to_string(net_dns_server2, tmp);
254 env_set("dnsip2", tmp);
257 #ifdef CONFIG_CMD_BOOTP
258 if (net_nis_domain[0])
259 env_set("domain", net_nis_domain);
262 #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
263 if (net_ntp_time_offset) {
264 sprintf(tmp, "%d", net_ntp_time_offset);
265 env_set("timeoffset", tmp);
268 #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
269 if (net_ntp_server.s_addr) {
270 ip_to_string(net_ntp_server, tmp);
271 env_set("ntpserverip", tmp);
275 if (IS_ENABLED(CONFIG_IPV6)) {
276 if (!ip6_is_unspecified_addr(&net_ip6) ||
277 net_prefix_length != 0) {
278 if (net_prefix_length != 0)
279 snprintf(tmp, sizeof(tmp), "%pI6c/%d", &net_ip6, net_prefix_length);
281 snprintf(tmp, sizeof(tmp), "%pI6c", &net_ip6);
282 env_set("ip6addr", tmp);
285 if (!ip6_is_unspecified_addr(&net_server_ip6)) {
286 snprintf(tmp, sizeof(tmp), "%pI6c", &net_server_ip6);
287 env_set("serverip6", tmp);
290 if (!ip6_is_unspecified_addr(&net_gateway6)) {
291 snprintf(tmp, sizeof(tmp), "%pI6c", &net_gateway6);
292 env_set("gatewayip6", tmp);
298 * parse_addr_size() - parse address and size arguments for tftpput
300 * @argv: command line arguments
301 * Return: 0 on success
303 static int parse_addr_size(char * const argv[])
305 if (strict_strtoul(argv[1], 16, &image_save_addr) < 0 ||
306 strict_strtoul(argv[2], 16, &image_save_size) < 0) {
307 printf("Invalid address/size\n");
308 return CMD_RET_USAGE;
314 * parse_args() - parse command line arguments
316 * @proto: command prototype
317 * @argc: number of arguments
318 * @argv: command line arguments
319 * Return: 0 on success
321 static int parse_args(enum proto_t proto, int argc, char *const argv[])
328 if (IS_ENABLED(CONFIG_CMD_TFTPPUT) && proto == TFTPPUT)
331 /* refresh bootfile name from env */
332 copy_filename(net_boot_file_name, env_get("bootfile"),
333 sizeof(net_boot_file_name));
337 if (IS_ENABLED(CONFIG_CMD_TFTPPUT) && proto == TFTPPUT)
340 * Only one arg - accept two forms:
341 * Just load address, or just boot file name. The latter
342 * form must be written in a format which can not be
343 * mis-interpreted as a valid number.
345 addr = hextoul(argv[1], &end);
346 if (end == (argv[1] + strlen(argv[1]))) {
347 image_load_addr = addr;
348 /* refresh bootfile name from env */
349 copy_filename(net_boot_file_name, env_get("bootfile"),
350 sizeof(net_boot_file_name));
352 net_boot_file_name_explicit = true;
353 copy_filename(net_boot_file_name, argv[1],
354 sizeof(net_boot_file_name));
359 if (IS_ENABLED(CONFIG_CMD_TFTPPUT) && proto == TFTPPUT) {
360 if (parse_addr_size(argv))
363 image_load_addr = hextoul(argv[1], NULL);
364 net_boot_file_name_explicit = true;
365 copy_filename(net_boot_file_name, argv[2],
366 sizeof(net_boot_file_name));
370 #ifdef CONFIG_CMD_TFTPPUT
372 if (parse_addr_size(argv))
374 net_boot_file_name_explicit = true;
375 copy_filename(net_boot_file_name, argv[3],
376 sizeof(net_boot_file_name));
385 static int netboot_common(enum proto_t proto, struct cmd_tbl *cmdtp, int argc,
392 net_boot_file_name_explicit = false;
393 *net_boot_file_name = '\0';
395 /* pre-set image_load_addr */
396 s = env_get("loadaddr");
398 image_load_addr = hextoul(s, NULL);
400 if (IS_ENABLED(CONFIG_IPV6)) {
403 /* IPv6 parameter has to be always *last* */
404 if (!strcmp(argv[argc - 1], USE_IP6_CMD_PARAM)) {
406 /* It is a hack not to break switch/case code */
411 if (parse_args(proto, argc, argv)) {
412 bootstage_error(BOOTSTAGE_ID_NET_START);
413 return CMD_RET_USAGE;
416 bootstage_mark(BOOTSTAGE_ID_NET_START);
418 if (IS_ENABLED(CONFIG_IPV6) && !use_ip6) {
422 s = strchr(net_boot_file_name, '[');
423 e = strchr(net_boot_file_name, ']');
426 if (!string_to_ip6(s + 1, len - 1, &net_server_ip6))
431 size = net_loop(proto);
433 bootstage_error(BOOTSTAGE_ID_NET_NETLOOP_OK);
434 return CMD_RET_FAILURE;
436 bootstage_mark(BOOTSTAGE_ID_NET_NETLOOP_OK);
438 /* net_loop ok, update environment */
439 netboot_update_env();
441 /* done if no file was loaded (no errors though) */
443 bootstage_error(BOOTSTAGE_ID_NET_LOADED);
444 return CMD_RET_SUCCESS;
447 bootstage_mark(BOOTSTAGE_ID_NET_LOADED);
449 rcode = bootm_maybe_autostart(cmdtp, argv[0]);
451 if (rcode == CMD_RET_SUCCESS)
452 bootstage_mark(BOOTSTAGE_ID_NET_DONE);
454 bootstage_error(BOOTSTAGE_ID_NET_DONE_ERR);
458 #if defined(CONFIG_CMD_PING)
459 static int do_ping(struct cmd_tbl *cmdtp, int flag, int argc,
463 return CMD_RET_USAGE;
465 net_ping_ip = string_to_ip(argv[1]);
466 if (net_ping_ip.s_addr == 0)
467 return CMD_RET_USAGE;
469 if (net_loop(PING) < 0) {
470 printf("ping failed; host %s is not alive\n", argv[1]);
471 return CMD_RET_FAILURE;
474 printf("host %s is alive\n", argv[1]);
476 return CMD_RET_SUCCESS;
481 "send ICMP ECHO_REQUEST to network host",
486 #if IS_ENABLED(CONFIG_CMD_PING6)
487 int do_ping6(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
489 if (string_to_ip6(argv[1], strlen(argv[1]), &net_ping_ip6))
490 return CMD_RET_USAGE;
493 if (net_loop(PING6) < 0) {
495 printf("ping6 failed; host %pI6c is not alive\n",
501 printf("host %pI6c is alive\n", &net_ping_ip6);
506 ping6, 2, 1, do_ping6,
507 "send ICMPv6 ECHO_REQUEST to network host",
510 #endif /* CONFIG_CMD_PING6 */
512 #if defined(CONFIG_CMD_CDP)
514 static void cdp_update_env(void)
518 if (cdp_appliance_vlan != htons(-1)) {
519 printf("CDP offered appliance VLAN %d\n",
520 ntohs(cdp_appliance_vlan));
521 vlan_to_string(cdp_appliance_vlan, tmp);
522 env_set("vlan", tmp);
523 net_our_vlan = cdp_appliance_vlan;
526 if (cdp_native_vlan != htons(-1)) {
527 printf("CDP offered native VLAN %d\n", ntohs(cdp_native_vlan));
528 vlan_to_string(cdp_native_vlan, tmp);
529 env_set("nvlan", tmp);
530 net_native_vlan = cdp_native_vlan;
534 int do_cdp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
540 printf("cdp failed; perhaps not a CISCO switch?\n");
541 return CMD_RET_FAILURE;
546 return CMD_RET_SUCCESS;
551 "Perform CDP network configuration",
556 #if defined(CONFIG_CMD_SNTP)
557 static struct udp_ops sntp_ops = {
558 .prereq = sntp_prereq,
563 int do_sntp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
568 net_ntp_server = env_get_ip("ntpserverip");
569 if (net_ntp_server.s_addr == 0) {
570 printf("ntpserverip not set\n");
571 return CMD_RET_FAILURE;
574 net_ntp_server = string_to_ip(argv[1]);
575 if (net_ntp_server.s_addr == 0) {
576 printf("Bad NTP server IP address\n");
577 return CMD_RET_FAILURE;
581 toff = env_get("timeoffset");
583 net_ntp_time_offset = 0;
585 net_ntp_time_offset = simple_strtol(toff, NULL, 10);
587 if (udp_loop(&sntp_ops) < 0) {
588 printf("SNTP failed: host %pI4 not responding\n",
590 return CMD_RET_FAILURE;
593 return CMD_RET_SUCCESS;
598 "synchronize RTC via network",
603 #if defined(CONFIG_CMD_DNS)
604 int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
607 return CMD_RET_USAGE;
610 * We should check for a valid hostname:
611 * - Each label must be between 1 and 63 characters long
612 * - the entire hostname has a maximum of 255 characters
613 * - only the ASCII letters 'a' through 'z' (case-insensitive),
614 * the digits '0' through '9', and the hyphen
615 * - cannot begin or end with a hyphen
616 * - no other symbols, punctuation characters, or blank spaces are
618 * but hey - this is a minimalist implmentation, so only check length
619 * and let the name server deal with things.
621 if (strlen(argv[1]) >= 255) {
622 printf("dns error: hostname too long\n");
623 return CMD_RET_FAILURE;
626 net_dns_resolve = argv[1];
629 net_dns_env_var = argv[2];
631 net_dns_env_var = NULL;
633 if (net_loop(DNS) < 0) {
634 printf("dns lookup of %s failed, check setup\n", argv[1]);
635 return CMD_RET_FAILURE;
638 return CMD_RET_SUCCESS;
643 "lookup the IP of a hostname",
647 #endif /* CONFIG_CMD_DNS */
649 #if defined(CONFIG_CMD_LINK_LOCAL)
650 static int do_link_local(struct cmd_tbl *cmdtp, int flag, int argc,
655 if (net_loop(LINKLOCAL) < 0)
656 return CMD_RET_FAILURE;
658 net_gateway.s_addr = 0;
659 ip_to_string(net_gateway, tmp);
660 env_set("gatewayip", tmp);
662 ip_to_string(net_netmask, tmp);
663 env_set("netmask", tmp);
665 ip_to_string(net_ip, tmp);
666 env_set("ipaddr", tmp);
667 env_set("llipaddr", tmp); /* store this for next time */
669 return CMD_RET_SUCCESS;
673 linklocal, 1, 1, do_link_local,
674 "acquire a network IP address using the link-local protocol",
678 #endif /* CONFIG_CMD_LINK_LOCAL */