blob: 40511db645dff85b255d735fccc737c007c93470 [file] [log] [blame]
Tom Rinif739fcd2018-05-07 17:02:21 -04001// SPDX-License-Identifier: GPL-2.0
wdenk2d966952002-10-31 22:12:35 +00002/*
3 * Copied from Linux Monitor (LiMon) - Networking.
4 *
5 * Copyright 1994 - 2000 Neil Russell.
6 * (See License)
7 * Copyright 2000 Roland Borde
8 * Copyright 2000 Paolo Scaffardi
9 * Copyright 2000-2002 Wolfgang Denk, wd@denx.de
10 */
11
12/*
13 * General Desription:
14 *
15 * The user interface supports commands for BOOTP, RARP, and TFTP.
16 * Also, we support ARP internally. Depending on available data,
17 * these interact as follows:
18 *
19 * BOOTP:
20 *
21 * Prerequisites: - own ethernet address
22 * We want: - own IP address
23 * - TFTP server IP address
24 * - name of bootfile
25 * Next step: ARP
26 *
Joe Hershbergerd22c3382012-05-23 08:00:12 +000027 * LINK_LOCAL:
28 *
29 * Prerequisites: - own ethernet address
30 * We want: - own IP address
31 * Next step: ARP
32 *
wdenk2d966952002-10-31 22:12:35 +000033 * RARP:
34 *
35 * Prerequisites: - own ethernet address
36 * We want: - own IP address
37 * - TFTP server IP address
38 * Next step: ARP
39 *
40 * ARP:
41 *
42 * Prerequisites: - own ethernet address
43 * - own IP address
44 * - TFTP server IP address
45 * We want: - TFTP server ethernet address
46 * Next step: TFTP
47 *
48 * DHCP:
49 *
Wolfgang Denkb2f50802005-08-12 23:43:12 +020050 * Prerequisites: - own ethernet address
51 * We want: - IP, Netmask, ServerIP, Gateway IP
52 * - bootfilename, lease time
53 * Next step: - TFTP
wdenk2d966952002-10-31 22:12:35 +000054 *
55 * TFTP:
56 *
57 * Prerequisites: - own ethernet address
58 * - own IP address
59 * - TFTP server IP address
60 * - TFTP server ethernet address
61 * - name of bootfile (if unknown, we use a default name
62 * derived from our own IP address)
63 * We want: - load the boot file
64 * Next step: none
wdenkcbd8a352004-02-24 02:00:03 +000065 *
66 * NFS:
67 *
68 * Prerequisites: - own ethernet address
69 * - own IP address
70 * - name of bootfile (if unknown, we use a default name
71 * derived from our own IP address)
72 * We want: - load the boot file
73 * Next step: none
wdenkea287de2005-04-01 00:25:43 +000074 *
75 * SNTP:
76 *
Wolfgang Denkb2f50802005-08-12 23:43:12 +020077 * Prerequisites: - own ethernet address
wdenkea287de2005-04-01 00:25:43 +000078 * - own IP address
79 * We want: - network time
80 * Next step: none
Lothar Feltend8970da2018-06-22 22:29:54 +020081 *
82 * WOL:
83 *
84 * Prerequisites: - own ethernet address
85 * We want: - magic packet or timeout
86 * Next step: none
wdenk2d966952002-10-31 22:12:35 +000087 */
88
89
90#include <common.h>
wdenk2d966952002-10-31 22:12:35 +000091#include <command.h>
Simon Glass24b852a2015-11-08 23:47:45 -070092#include <console.h>
Simon Glassc7694dd2019-08-01 09:46:46 -060093#include <env.h>
Simon Glassf3998fd2019-08-02 09:44:25 -060094#include <env_internal.h>
Joe Hershberger60304592015-03-22 17:09:24 -050095#include <errno.h>
wdenk2d966952002-10-31 22:12:35 +000096#include <net.h>
Alex Kiernanf73a7df2018-05-29 15:30:53 +000097#include <net/fastboot.h>
Lukasz Majewski34696952015-08-24 00:21:43 +020098#include <net/tftp.h>
Uri Mashiach2d8d1902017-01-19 10:51:45 +020099#if defined(CONFIG_LED_STATUS)
Joe Hershberger4545f4e2012-05-23 07:58:15 +0000100#include <miiphy.h>
101#include <status_led.h>
102#endif
103#include <watchdog.h>
104#include <linux/compiler.h>
Joe Hershbergerd280d3f2012-05-23 07:58:01 +0000105#include "arp.h"
wdenk2d966952002-10-31 22:12:35 +0000106#include "bootp.h"
Joe Hershbergerf575ae12012-05-23 07:57:59 +0000107#include "cdp.h"
Robin Getz1a32bf42009-07-20 14:53:54 -0400108#if defined(CONFIG_CMD_DNS)
109#include "dns.h"
110#endif
Joe Hershbergerd22c3382012-05-23 08:00:12 +0000111#include "link_local.h"
Joe Hershberger4545f4e2012-05-23 07:58:15 +0000112#include "nfs.h"
Joe Hershbergera36b12f2012-05-23 07:58:02 +0000113#include "ping.h"
Joe Hershberger4545f4e2012-05-23 07:58:15 +0000114#include "rarp.h"
115#if defined(CONFIG_CMD_SNTP)
116#include "sntp.h"
117#endif
Lothar Feltend8970da2018-06-22 22:29:54 +0200118#if defined(CONFIG_CMD_WOL)
119#include "wol.h"
120#endif
wdenk2d966952002-10-31 22:12:35 +0000121
wdenk2d966952002-10-31 22:12:35 +0000122/** BOOTP EXTENTIONS **/
123
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000124/* Our subnet mask (0=unknown) */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500125struct in_addr net_netmask;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000126/* Our gateways IP address */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500127struct in_addr net_gateway;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000128/* Our DNS IP address */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500129struct in_addr net_dns_server;
Jon Loeliger1fe80d72007-07-09 22:08:34 -0500130#if defined(CONFIG_BOOTP_DNS2)
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000131/* Our 2nd DNS IP address */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500132struct in_addr net_dns_server2;
stroesefe389a82003-08-28 14:17:32 +0000133#endif
wdenk2d966952002-10-31 22:12:35 +0000134
135/** END OF BOOTP EXTENTIONS **/
136
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000137/* Our ethernet address */
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500138u8 net_ethaddr[6];
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000139/* Boot server enet address */
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500140u8 net_server_ethaddr[6];
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000141/* Our IP addr (0 = unknown) */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500142struct in_addr net_ip;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000143/* Server IP addr (0 = unknown) */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500144struct in_addr net_server_ip;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000145/* Current receive packet */
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500146uchar *net_rx_packet;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000147/* Current rx packet length */
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500148int net_rx_packet_len;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000149/* IP packet ID */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500150static unsigned net_ip_id;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000151/* Ethernet bcast address */
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500152const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
153const u8 net_null_ethaddr[6];
Alexander Graf0efe1bc2016-05-06 21:01:01 +0200154#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER)
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500155void (*push_packet)(void *, int len) = 0;
Rafal Jaworowskif85b6072007-12-27 18:19:02 +0100156#endif
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000157/* Network loop state */
Joe Hershberger22f6e992012-05-23 07:59:14 +0000158enum net_loop_state net_state;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000159/* Tried all network devices */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500160int net_restart_wrap;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000161/* Network loop restarted */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500162static int net_restarted;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000163/* At least one device configured */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500164static int net_dev_exists;
wdenk2d966952002-10-31 22:12:35 +0000165
wdenk6e592382004-04-18 17:39:38 +0000166/* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000167/* default is without VLAN */
Joe Hershberger4fd50552015-04-08 01:41:17 -0500168ushort net_our_vlan = 0xFFFF;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000169/* ditto */
Joe Hershberger4fd50552015-04-08 01:41:17 -0500170ushort net_native_vlan = 0xFFFF;
wdenka3d991b2004-04-15 21:48:45 +0000171
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000172/* Boot File name */
Jacob Stiffler11a69ff2015-09-30 10:12:05 -0400173char net_boot_file_name[1024];
Alexander Graf449312c2018-06-15 10:29:27 +0200174/* Indicates whether the file name was specified on the command line */
175bool net_boot_file_name_explicit;
Joe Hershberger14111572015-04-08 01:41:02 -0500176/* The actual transferred size of the bootfile (in bytes) */
177u32 net_boot_file_size;
178/* Boot file size in blocks as reported by the DHCP server */
179u32 net_boot_file_expected_size_in_blocks;
wdenk2d966952002-10-31 22:12:35 +0000180
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500181#if defined(CONFIG_CMD_SNTP)
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000182/* NTP server IP address */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500183struct in_addr net_ntp_server;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000184/* offset time from UTC */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500185int net_ntp_time_offset;
wdenkea287de2005-04-01 00:25:43 +0000186#endif
187
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500188static uchar net_pkt_buf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN];
Joe Hershberger2a504df2015-03-22 17:09:11 -0500189/* Receive packets */
190uchar *net_rx_packets[PKTBUFSRX];
Joe Hershbergerece223b2012-05-23 07:59:15 +0000191/* Current UDP RX packet handler */
192static rxhand_f *udp_packet_handler;
193/* Current ARP RX packet handler */
194static rxhand_f *arp_packet_handler;
Simon Glass39bccd22011-10-26 14:18:38 +0000195#ifdef CONFIG_CMD_TFTPPUT
Joe Hershbergerece223b2012-05-23 07:59:15 +0000196/* Current ICMP rx handler */
197static rxhand_icmp_f *packet_icmp_handler;
Simon Glass39bccd22011-10-26 14:18:38 +0000198#endif
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000199/* Current timeout handler */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500200static thand_f *time_handler;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000201/* Time base value */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500202static ulong time_start;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000203/* Current timeout value */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500204static ulong time_delta;
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000205/* THE transmit packet */
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500206uchar *net_tx_packet;
wdenk2d966952002-10-31 22:12:35 +0000207
Simon Glasse4bf0c52011-10-24 18:00:02 +0000208static int net_check_prereq(enum proto_t protocol);
wdenk2d966952002-10-31 22:12:35 +0000209
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500210static int net_try_count;
Remy Bohmer67b96e82009-10-28 22:13:39 +0100211
Jim Linb63056d2013-08-13 19:03:05 +0800212int __maybe_unused net_busy_flag;
213
wdenk2d966952002-10-31 22:12:35 +0000214/**********************************************************************/
wdenk73a8b272003-06-05 19:27:42 +0000215
Joe Hershbergerfd305632015-05-20 14:27:23 -0500216static int on_ipaddr(const char *name, const char *value, enum env_op op,
217 int flags)
218{
219 if (flags & H_PROGRAMMATIC)
220 return 0;
221
222 net_ip = string_to_ip(value);
223
224 return 0;
225}
226U_BOOT_ENV_CALLBACK(ipaddr, on_ipaddr);
227
228static int on_gatewayip(const char *name, const char *value, enum env_op op,
229 int flags)
230{
231 if (flags & H_PROGRAMMATIC)
232 return 0;
233
234 net_gateway = string_to_ip(value);
235
236 return 0;
237}
238U_BOOT_ENV_CALLBACK(gatewayip, on_gatewayip);
239
240static int on_netmask(const char *name, const char *value, enum env_op op,
241 int flags)
242{
243 if (flags & H_PROGRAMMATIC)
244 return 0;
245
246 net_netmask = string_to_ip(value);
247
248 return 0;
249}
250U_BOOT_ENV_CALLBACK(netmask, on_netmask);
251
252static int on_serverip(const char *name, const char *value, enum env_op op,
253 int flags)
254{
255 if (flags & H_PROGRAMMATIC)
256 return 0;
257
258 net_server_ip = string_to_ip(value);
259
260 return 0;
261}
262U_BOOT_ENV_CALLBACK(serverip, on_serverip);
263
264static int on_nvlan(const char *name, const char *value, enum env_op op,
265 int flags)
266{
267 if (flags & H_PROGRAMMATIC)
268 return 0;
269
270 net_native_vlan = string_to_vlan(value);
271
272 return 0;
273}
274U_BOOT_ENV_CALLBACK(nvlan, on_nvlan);
275
276static int on_vlan(const char *name, const char *value, enum env_op op,
277 int flags)
278{
279 if (flags & H_PROGRAMMATIC)
280 return 0;
281
282 net_our_vlan = string_to_vlan(value);
283
284 return 0;
285}
286U_BOOT_ENV_CALLBACK(vlan, on_vlan);
287
288#if defined(CONFIG_CMD_DNS)
289static int on_dnsip(const char *name, const char *value, enum env_op op,
290 int flags)
291{
292 if (flags & H_PROGRAMMATIC)
293 return 0;
294
295 net_dns_server = string_to_ip(value);
296
297 return 0;
298}
299U_BOOT_ENV_CALLBACK(dnsip, on_dnsip);
300#endif
301
Simon Glasse4a3d572011-10-27 06:24:32 +0000302/*
303 * Check if autoload is enabled. If so, use either NFS or TFTP to download
304 * the boot file.
305 */
306void net_auto_load(void)
307{
Joe Hershbergerec8a2522012-12-11 22:16:22 -0600308#if defined(CONFIG_CMD_NFS)
Simon Glass00caae62017-08-03 12:22:12 -0600309 const char *s = env_get("autoload");
Simon Glasse4a3d572011-10-27 06:24:32 +0000310
Joe Hershbergerec8a2522012-12-11 22:16:22 -0600311 if (s != NULL && strcmp(s, "NFS") == 0) {
Joe Hershberger3855cad2018-07-03 19:36:40 -0500312 if (net_check_prereq(NFS)) {
313/* We aren't expecting to get a serverip, so just accept the assigned IP */
314#ifdef CONFIG_BOOTP_SERVERIP
315 net_set_state(NETLOOP_SUCCESS);
316#else
317 printf("Cannot autoload with NFS\n");
318 net_set_state(NETLOOP_FAIL);
319#endif
320 return;
321 }
Joe Hershbergerec8a2522012-12-11 22:16:22 -0600322 /*
323 * Use NFS to load the bootfile.
324 */
Joe Hershberger68c76a32015-04-08 01:41:10 -0500325 nfs_start();
Joe Hershbergerec8a2522012-12-11 22:16:22 -0600326 return;
327 }
Simon Glasse4a3d572011-10-27 06:24:32 +0000328#endif
Simon Glassbfebc8c2017-08-03 12:22:13 -0600329 if (env_get_yesno("autoload") == 0) {
Joe Hershbergerec8a2522012-12-11 22:16:22 -0600330 /*
331 * Just use BOOTP/RARP to configure system;
332 * Do not use TFTP to load the bootfile.
333 */
334 net_set_state(NETLOOP_SUCCESS);
335 return;
Simon Glasse4a3d572011-10-27 06:24:32 +0000336 }
Joe Hershberger3855cad2018-07-03 19:36:40 -0500337 if (net_check_prereq(TFTPGET)) {
338/* We aren't expecting to get a serverip, so just accept the assigned IP */
339#ifdef CONFIG_BOOTP_SERVERIP
340 net_set_state(NETLOOP_SUCCESS);
341#else
342 printf("Cannot autoload with TFTPGET\n");
343 net_set_state(NETLOOP_FAIL);
344#endif
345 return;
346 }
Joe Hershberger8885c5f2015-04-08 01:41:07 -0500347 tftp_start(TFTPGET);
Simon Glasse4a3d572011-10-27 06:24:32 +0000348}
349
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500350static void net_init_loop(void)
Heiko Schocher2f70c492009-02-10 09:38:52 +0100351{
Jim Lin7315cfd2013-05-17 17:41:03 +0800352 if (eth_get_dev())
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500353 memcpy(net_ethaddr, eth_get_ethaddr(), 6);
Michael Zaidman3c172c42009-04-04 01:43:00 +0300354
Heiko Schocherda954272009-04-28 08:36:11 +0200355 return;
Heiko Schocher2f70c492009-02-10 09:38:52 +0100356}
357
Joe Hershbergerece223b2012-05-23 07:59:15 +0000358static void net_clear_handlers(void)
359{
360 net_set_udp_handler(NULL);
361 net_set_arp_handler(NULL);
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500362 net_set_timeout_handler(0, NULL);
Joe Hershbergerece223b2012-05-23 07:59:15 +0000363}
364
365static void net_cleanup_loop(void)
366{
367 net_clear_handlers();
368}
369
Joe Hershberger46c495d2012-05-23 07:59:22 +0000370void net_init(void)
371{
372 static int first_call = 1;
373
374 if (first_call) {
375 /*
376 * Setup packet buffers, aligned correctly.
377 */
378 int i;
379
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500380 net_tx_packet = &net_pkt_buf[0] + (PKTALIGN - 1);
381 net_tx_packet -= (ulong)net_tx_packet % PKTALIGN;
Joe Hershberger2a504df2015-03-22 17:09:11 -0500382 for (i = 0; i < PKTBUFSRX; i++) {
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500383 net_rx_packets[i] = net_tx_packet +
384 (i + 1) * PKTSIZE_ALIGN;
Joe Hershberger2a504df2015-03-22 17:09:11 -0500385 }
Joe Hershberger85d25e02015-04-08 01:41:08 -0500386 arp_init();
Joe Hershberger46c495d2012-05-23 07:59:22 +0000387 net_clear_handlers();
388
389 /* Only need to setup buffer pointers once. */
390 first_call = 0;
391 }
392
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500393 net_init_loop();
Joe Hershberger46c495d2012-05-23 07:59:22 +0000394}
395
wdenk73a8b272003-06-05 19:27:42 +0000396/**********************************************************************/
wdenk2d966952002-10-31 22:12:35 +0000397/*
398 * Main network processing loop.
399 */
400
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500401int net_loop(enum proto_t protocol)
wdenk2d966952002-10-31 22:12:35 +0000402{
Joe Hershberger60304592015-03-22 17:09:24 -0500403 int ret = -EINVAL;
Leonid Iziumtsev60177b22018-05-08 15:55:50 +0200404 enum net_loop_state prev_net_state = net_state;
wdenk2d966952002-10-31 22:12:35 +0000405
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500406 net_restarted = 0;
407 net_dev_exists = 0;
408 net_try_count = 1;
409 debug_cond(DEBUG_INT_STATE, "--- net_loop Entry\n");
wdenk73a8b272003-06-05 19:27:42 +0000410
Simon Glass573f14f2011-12-10 11:08:06 +0000411 bootstage_mark_name(BOOTSTAGE_ID_ETH_START, "eth_start");
Joe Hershberger46c495d2012-05-23 07:59:22 +0000412 net_init();
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000413 if (eth_is_on_demand_init() || protocol != NETCONS) {
wdenkb1bf6f22005-04-03 14:52:59 +0000414 eth_halt();
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000415 eth_set_current();
Joe Hershberger60304592015-03-22 17:09:24 -0500416 ret = eth_init();
417 if (ret < 0) {
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000418 eth_halt();
Joe Hershberger60304592015-03-22 17:09:24 -0500419 return ret;
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000420 }
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500421 } else {
Joe Hershbergerd2eaec62015-03-22 17:09:06 -0500422 eth_init_state_only();
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500423 }
wdenk2d966952002-10-31 22:12:35 +0000424restart:
Jim Linb63056d2013-08-13 19:03:05 +0800425#ifdef CONFIG_USB_KEYBOARD
426 net_busy_flag = 0;
427#endif
Joe Hershberger22f6e992012-05-23 07:59:14 +0000428 net_set_state(NETLOOP_CONTINUE);
wdenk2d966952002-10-31 22:12:35 +0000429
430 /*
431 * Start the ball rolling with the given start function. From
432 * here on, this code is a state machine driven by received
433 * packets and timer events.
434 */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500435 debug_cond(DEBUG_INT_STATE, "--- net_loop Init\n");
436 net_init_loop();
wdenk2d966952002-10-31 22:12:35 +0000437
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000438 switch (net_check_prereq(protocol)) {
wdenk2d966952002-10-31 22:12:35 +0000439 case 1:
440 /* network not configured */
wdenkb1bf6f22005-04-03 14:52:59 +0000441 eth_halt();
Leonid Iziumtsev60177b22018-05-08 15:55:50 +0200442 net_set_state(prev_net_state);
Joe Hershberger60304592015-03-22 17:09:24 -0500443 return -ENODEV;
wdenk2d966952002-10-31 22:12:35 +0000444
wdenk2d966952002-10-31 22:12:35 +0000445 case 2:
446 /* network device not configured */
447 break;
wdenk2d966952002-10-31 22:12:35 +0000448
449 case 0:
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500450 net_dev_exists = 1;
Joe Hershberger14111572015-04-08 01:41:02 -0500451 net_boot_file_size = 0;
wdenk2d966952002-10-31 22:12:35 +0000452 switch (protocol) {
Simon Glasse4bf0c52011-10-24 18:00:02 +0000453 case TFTPGET:
Simon Glass1fb7cd42011-10-24 18:00:07 +0000454#ifdef CONFIG_CMD_TFTPPUT
455 case TFTPPUT:
456#endif
wdenk2d966952002-10-31 22:12:35 +0000457 /* always use ARP to get server ethernet address */
Joe Hershberger8885c5f2015-04-08 01:41:07 -0500458 tftp_start(protocol);
wdenk2d966952002-10-31 22:12:35 +0000459 break;
Luca Ceresoli7a83af02011-05-17 00:03:40 +0000460#ifdef CONFIG_CMD_TFTPSRV
461 case TFTPSRV:
Joe Hershberger8885c5f2015-04-08 01:41:07 -0500462 tftp_start_server();
Luca Ceresoli7a83af02011-05-17 00:03:40 +0000463 break;
464#endif
Alex Kiernanf73a7df2018-05-29 15:30:53 +0000465#ifdef CONFIG_UDP_FUNCTION_FASTBOOT
466 case FASTBOOT:
467 fastboot_start_server();
468 break;
469#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500470#if defined(CONFIG_CMD_DHCP)
wdenk2d966952002-10-31 22:12:35 +0000471 case DHCP:
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500472 bootp_reset();
Joe Hershberger049a95a2015-04-08 01:41:01 -0500473 net_ip.s_addr = 0;
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500474 dhcp_request(); /* Basically same as BOOTP */
wdenk2d966952002-10-31 22:12:35 +0000475 break;
Jon Loeliger610f2e92007-07-10 11:05:02 -0500476#endif
wdenk2d966952002-10-31 22:12:35 +0000477
478 case BOOTP:
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500479 bootp_reset();
Joe Hershberger049a95a2015-04-08 01:41:01 -0500480 net_ip.s_addr = 0;
Joe Hershberger7044c6b2015-04-08 01:41:09 -0500481 bootp_request();
wdenk2d966952002-10-31 22:12:35 +0000482 break;
483
Peter Tyserbf6cb242010-09-30 11:25:48 -0500484#if defined(CONFIG_CMD_RARP)
wdenk2d966952002-10-31 22:12:35 +0000485 case RARP:
Joe Hershberger698d78e2015-04-08 01:41:11 -0500486 rarp_try = 0;
Joe Hershberger049a95a2015-04-08 01:41:01 -0500487 net_ip.s_addr = 0;
Joe Hershberger698d78e2015-04-08 01:41:11 -0500488 rarp_request();
wdenk2d966952002-10-31 22:12:35 +0000489 break;
Peter Tyserbf6cb242010-09-30 11:25:48 -0500490#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500491#if defined(CONFIG_CMD_PING)
wdenk73a8b272003-06-05 19:27:42 +0000492 case PING:
Joe Hershbergera36b12f2012-05-23 07:58:02 +0000493 ping_start();
wdenk73a8b272003-06-05 19:27:42 +0000494 break;
495#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500496#if defined(CONFIG_CMD_NFS)
wdenkcbd8a352004-02-24 02:00:03 +0000497 case NFS:
Joe Hershberger68c76a32015-04-08 01:41:10 -0500498 nfs_start();
wdenkcbd8a352004-02-24 02:00:03 +0000499 break;
500#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500501#if defined(CONFIG_CMD_CDP)
wdenka3d991b2004-04-15 21:48:45 +0000502 case CDP:
Joe Hershberger6aede5b2015-04-08 01:41:14 -0500503 cdp_start();
wdenka3d991b2004-04-15 21:48:45 +0000504 break;
505#endif
Holger Dengler66c89ee2017-07-20 10:10:55 +0200506#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD)
wdenk68ceb292004-08-02 21:11:11 +0000507 case NETCONS:
Joe Hershberger6a38a5f2015-04-08 01:41:16 -0500508 nc_start();
wdenk68ceb292004-08-02 21:11:11 +0000509 break;
510#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500511#if defined(CONFIG_CMD_SNTP)
wdenkea287de2005-04-01 00:25:43 +0000512 case SNTP:
Joe Hershberger38ba2552015-04-08 01:41:12 -0500513 sntp_start();
wdenkea287de2005-04-01 00:25:43 +0000514 break;
515#endif
Robin Getz1a32bf42009-07-20 14:53:54 -0400516#if defined(CONFIG_CMD_DNS)
517 case DNS:
Joe Hershberger786eac52015-04-08 01:41:15 -0500518 dns_start();
Robin Getz1a32bf42009-07-20 14:53:54 -0400519 break;
520#endif
Joe Hershbergerd22c3382012-05-23 08:00:12 +0000521#if defined(CONFIG_CMD_LINK_LOCAL)
522 case LINKLOCAL:
523 link_local_start();
524 break;
525#endif
Lothar Feltend8970da2018-06-22 22:29:54 +0200526#if defined(CONFIG_CMD_WOL)
527 case WOL:
528 wol_start();
529 break;
530#endif
wdenk2d966952002-10-31 22:12:35 +0000531 default:
532 break;
533 }
534
wdenk2d966952002-10-31 22:12:35 +0000535 break;
536 }
537
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500538#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
Luca Ceresoli3e38e422011-05-11 03:59:54 +0000539#if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \
Uri Mashiach2d8d1902017-01-19 10:51:45 +0200540 defined(CONFIG_LED_STATUS) && \
541 defined(CONFIG_LED_STATUS_RED)
wdenkfc3e2162003-10-08 22:33:00 +0000542 /*
wdenk42d1f032003-10-15 23:53:47 +0000543 * Echo the inverted link state to the fault LED.
wdenkfc3e2162003-10-08 22:33:00 +0000544 */
Luca Ceresolid3c65b02011-05-04 02:40:43 +0000545 if (miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR))
Uri Mashiach2d8d1902017-01-19 10:51:45 +0200546 status_led_set(CONFIG_LED_STATUS_RED, CONFIG_LED_STATUS_OFF);
Luca Ceresolid3c65b02011-05-04 02:40:43 +0000547 else
Uri Mashiach2d8d1902017-01-19 10:51:45 +0200548 status_led_set(CONFIG_LED_STATUS_RED, CONFIG_LED_STATUS_ON);
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200549#endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
wdenkfc3e2162003-10-08 22:33:00 +0000550#endif /* CONFIG_MII, ... */
Jim Linb63056d2013-08-13 19:03:05 +0800551#ifdef CONFIG_USB_KEYBOARD
552 net_busy_flag = 1;
553#endif
wdenk2d966952002-10-31 22:12:35 +0000554
555 /*
556 * Main packet reception loop. Loop receiving packets until
Joe Hershberger22f6e992012-05-23 07:59:14 +0000557 * someone sets `net_state' to a state that terminates.
wdenk2d966952002-10-31 22:12:35 +0000558 */
559 for (;;) {
560 WATCHDOG_RESET();
561#ifdef CONFIG_SHOW_ACTIVITY
Joe Hershberger48522bb2012-05-15 08:59:08 +0000562 show_activity(1);
wdenk2d966952002-10-31 22:12:35 +0000563#endif
Joe Hershbergerc5a75332015-12-21 16:31:35 -0600564 if (arp_timeout_check() > 0)
565 time_start = get_timer(0);
566
wdenk2d966952002-10-31 22:12:35 +0000567 /*
568 * Check the ethernet for a new packet. The ethernet
569 * receive routine will process it.
Joe Hershberger60304592015-03-22 17:09:24 -0500570 * Most drivers return the most recent packet size, but not
571 * errors that may have happened.
wdenk2d966952002-10-31 22:12:35 +0000572 */
Guennadi Liakhovetski40cb90e2008-04-03 17:04:19 +0200573 eth_rx();
wdenk2d966952002-10-31 22:12:35 +0000574
575 /*
576 * Abort if ctrl-c was pressed.
577 */
578 if (ctrlc()) {
Joe Hershbergere94070c2012-05-23 07:59:24 +0000579 /* cancel any ARP that may not have completed */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500580 net_arp_wait_packet_ip.s_addr = 0;
Joe Hershbergere94070c2012-05-23 07:59:24 +0000581
Joe Hershbergerece223b2012-05-23 07:59:15 +0000582 net_cleanup_loop();
wdenk8bde7f72003-06-27 21:31:46 +0000583 eth_halt();
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000584 /* Invalidate the last protocol */
585 eth_set_last_protocol(BOOTP);
586
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000587 puts("\nAbort\n");
Joe Hershberger4ef8d532012-05-23 08:01:04 +0000588 /* include a debug print as well incase the debug
589 messages are directed to stderr */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500590 debug_cond(DEBUG_INT_STATE, "--- net_loop Abort!\n");
Michal Simek19a4fba2015-08-21 08:49:48 +0200591 ret = -EINTR;
Simon Glass4793ee62011-10-24 18:00:01 +0000592 goto done;
wdenk2d966952002-10-31 22:12:35 +0000593 }
594
wdenk2d966952002-10-31 22:12:35 +0000595 /*
596 * Check for a timeout, and run the timeout handler
597 * if we have one.
598 */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500599 if (time_handler &&
600 ((get_timer(0) - time_start) > time_delta)) {
wdenk2d966952002-10-31 22:12:35 +0000601 thand_f *x;
602
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500603#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000604#if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \
Uri Mashiach2d8d1902017-01-19 10:51:45 +0200605 defined(CONFIG_LED_STATUS) && \
606 defined(CONFIG_LED_STATUS_RED)
wdenkfc3e2162003-10-08 22:33:00 +0000607 /*
wdenk42d1f032003-10-15 23:53:47 +0000608 * Echo the inverted link state to the fault LED.
wdenkfc3e2162003-10-08 22:33:00 +0000609 */
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000610 if (miiphy_link(eth_get_dev()->name,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500611 CONFIG_SYS_FAULT_MII_ADDR))
Uri Mashiach2d8d1902017-01-19 10:51:45 +0200612 status_led_set(CONFIG_LED_STATUS_RED,
613 CONFIG_LED_STATUS_OFF);
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500614 else
Uri Mashiach2d8d1902017-01-19 10:51:45 +0200615 status_led_set(CONFIG_LED_STATUS_RED,
616 CONFIG_LED_STATUS_ON);
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000617#endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */
wdenkfc3e2162003-10-08 22:33:00 +0000618#endif /* CONFIG_MII, ... */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500619 debug_cond(DEBUG_INT_STATE, "--- net_loop timeout\n");
620 x = time_handler;
621 time_handler = (thand_f *)0;
wdenk2d966952002-10-31 22:12:35 +0000622 (*x)();
623 }
624
Joe Hershberger5c421332015-03-22 17:09:07 -0500625 if (net_state == NETLOOP_FAIL)
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500626 ret = net_start_again();
wdenk2d966952002-10-31 22:12:35 +0000627
Joe Hershberger22f6e992012-05-23 07:59:14 +0000628 switch (net_state) {
wdenk2d966952002-10-31 22:12:35 +0000629 case NETLOOP_RESTART:
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500630 net_restarted = 1;
wdenk2d966952002-10-31 22:12:35 +0000631 goto restart;
632
633 case NETLOOP_SUCCESS:
Joe Hershbergerece223b2012-05-23 07:59:15 +0000634 net_cleanup_loop();
Joe Hershberger14111572015-04-08 01:41:02 -0500635 if (net_boot_file_size > 0) {
636 printf("Bytes transferred = %d (%x hex)\n",
637 net_boot_file_size, net_boot_file_size);
Simon Glass018f5302017-08-03 12:22:10 -0600638 env_set_hex("filesize", net_boot_file_size);
639 env_set_hex("fileaddr", load_addr);
wdenk2d966952002-10-31 22:12:35 +0000640 }
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000641 if (protocol != NETCONS)
642 eth_halt();
643 else
644 eth_halt_state_only();
645
646 eth_set_last_protocol(protocol);
647
Joe Hershberger14111572015-04-08 01:41:02 -0500648 ret = net_boot_file_size;
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500649 debug_cond(DEBUG_INT_STATE, "--- net_loop Success!\n");
Simon Glass4793ee62011-10-24 18:00:01 +0000650 goto done;
wdenk2d966952002-10-31 22:12:35 +0000651
652 case NETLOOP_FAIL:
Joe Hershbergerece223b2012-05-23 07:59:15 +0000653 net_cleanup_loop();
Joe Hershbergerf8be7d62012-08-03 10:59:08 +0000654 /* Invalidate the last protocol */
655 eth_set_last_protocol(BOOTP);
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500656 debug_cond(DEBUG_INT_STATE, "--- net_loop Fail!\n");
Thomas RIENOESSLa735e6e2018-11-21 15:56:07 +0100657 ret = -ENONET;
Simon Glass4793ee62011-10-24 18:00:01 +0000658 goto done;
Joe Hershberger22f6e992012-05-23 07:59:14 +0000659
660 case NETLOOP_CONTINUE:
661 continue;
wdenk2d966952002-10-31 22:12:35 +0000662 }
663 }
Simon Glass4793ee62011-10-24 18:00:01 +0000664
665done:
Jim Linb63056d2013-08-13 19:03:05 +0800666#ifdef CONFIG_USB_KEYBOARD
667 net_busy_flag = 0;
668#endif
Simon Glass39bccd22011-10-26 14:18:38 +0000669#ifdef CONFIG_CMD_TFTPPUT
Simon Glass4793ee62011-10-24 18:00:01 +0000670 /* Clear out the handlers */
Joe Hershbergerece223b2012-05-23 07:59:15 +0000671 net_set_udp_handler(NULL);
Simon Glass4793ee62011-10-24 18:00:01 +0000672 net_set_icmp_handler(NULL);
Simon Glass39bccd22011-10-26 14:18:38 +0000673#endif
Leonid Iziumtsev60177b22018-05-08 15:55:50 +0200674 net_set_state(prev_net_state);
Simon Glass4793ee62011-10-24 18:00:01 +0000675 return ret;
wdenk2d966952002-10-31 22:12:35 +0000676}
677
678/**********************************************************************/
679
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500680static void start_again_timeout_handler(void)
wdenk2d966952002-10-31 22:12:35 +0000681{
Joe Hershberger22f6e992012-05-23 07:59:14 +0000682 net_set_state(NETLOOP_RESTART);
wdenk2d966952002-10-31 22:12:35 +0000683}
684
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500685int net_start_again(void)
wdenk2d966952002-10-31 22:12:35 +0000686{
wdenk6e592382004-04-18 17:39:38 +0000687 char *nretry;
Remy Bohmer67b96e82009-10-28 22:13:39 +0100688 int retry_forever = 0;
689 unsigned long retrycnt = 0;
Joe Hershberger60304592015-03-22 17:09:24 -0500690 int ret;
wdenka3d991b2004-04-15 21:48:45 +0000691
Simon Glass00caae62017-08-03 12:22:12 -0600692 nretry = env_get("netretry");
Remy Bohmer67b96e82009-10-28 22:13:39 +0100693 if (nretry) {
694 if (!strcmp(nretry, "yes"))
695 retry_forever = 1;
696 else if (!strcmp(nretry, "no"))
697 retrycnt = 0;
698 else if (!strcmp(nretry, "once"))
699 retrycnt = 1;
700 else
701 retrycnt = simple_strtoul(nretry, NULL, 0);
Joe Hershberger5c421332015-03-22 17:09:07 -0500702 } else {
703 retrycnt = 0;
704 retry_forever = 0;
705 }
Remy Bohmer67b96e82009-10-28 22:13:39 +0100706
Leonid Iziumtsev17d413b2018-03-09 15:29:06 +0100707 if ((!retry_forever) && (net_try_count > retrycnt)) {
Remy Bohmer67b96e82009-10-28 22:13:39 +0100708 eth_halt();
Joe Hershberger22f6e992012-05-23 07:59:14 +0000709 net_set_state(NETLOOP_FAIL);
Joe Hershberger60304592015-03-22 17:09:24 -0500710 /*
711 * We don't provide a way for the protocol to return an error,
712 * but this is almost always the reason.
713 */
714 return -ETIMEDOUT;
wdenka3d991b2004-04-15 21:48:45 +0000715 }
Remy Bohmer67b96e82009-10-28 22:13:39 +0100716
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500717 net_try_count++;
Remy Bohmer67b96e82009-10-28 22:13:39 +0100718
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000719 eth_halt();
Matthias Fuchs8b0c5c12007-12-27 16:58:41 +0100720#if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER)
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500721 eth_try_another(!net_restarted);
Matthias Fuchs8b0c5c12007-12-27 16:58:41 +0100722#endif
Joe Hershberger60304592015-03-22 17:09:24 -0500723 ret = eth_init();
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500724 if (net_restart_wrap) {
725 net_restart_wrap = 0;
726 if (net_dev_exists) {
727 net_set_timeout_handler(10000UL,
728 start_again_timeout_handler);
Joe Hershbergerece223b2012-05-23 07:59:15 +0000729 net_set_udp_handler(NULL);
wdenk6e592382004-04-18 17:39:38 +0000730 } else {
Joe Hershberger22f6e992012-05-23 07:59:14 +0000731 net_set_state(NETLOOP_FAIL);
wdenk2d966952002-10-31 22:12:35 +0000732 }
wdenk6e592382004-04-18 17:39:38 +0000733 } else {
Joe Hershberger22f6e992012-05-23 07:59:14 +0000734 net_set_state(NETLOOP_RESTART);
wdenk2d966952002-10-31 22:12:35 +0000735 }
Joe Hershberger60304592015-03-22 17:09:24 -0500736 return ret;
wdenk2d966952002-10-31 22:12:35 +0000737}
738
739/**********************************************************************/
740/*
741 * Miscelaneous bits.
742 */
743
Joe Hershbergerece223b2012-05-23 07:59:15 +0000744static void dummy_handler(uchar *pkt, unsigned dport,
Joe Hershberger049a95a2015-04-08 01:41:01 -0500745 struct in_addr sip, unsigned sport,
Joe Hershbergerece223b2012-05-23 07:59:15 +0000746 unsigned len)
Joe Hershbergerd280d3f2012-05-23 07:58:01 +0000747{
Joe Hershbergerd280d3f2012-05-23 07:58:01 +0000748}
749
Joe Hershbergerece223b2012-05-23 07:59:15 +0000750rxhand_f *net_get_udp_handler(void)
wdenk2d966952002-10-31 22:12:35 +0000751{
Joe Hershbergerece223b2012-05-23 07:59:15 +0000752 return udp_packet_handler;
753}
754
755void net_set_udp_handler(rxhand_f *f)
756{
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500757 debug_cond(DEBUG_INT_STATE, "--- net_loop UDP handler set (%p)\n", f);
Joe Hershbergerece223b2012-05-23 07:59:15 +0000758 if (f == NULL)
759 udp_packet_handler = dummy_handler;
760 else
761 udp_packet_handler = f;
762}
763
764rxhand_f *net_get_arp_handler(void)
765{
766 return arp_packet_handler;
767}
768
769void net_set_arp_handler(rxhand_f *f)
770{
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500771 debug_cond(DEBUG_INT_STATE, "--- net_loop ARP handler set (%p)\n", f);
Joe Hershbergerece223b2012-05-23 07:59:15 +0000772 if (f == NULL)
773 arp_packet_handler = dummy_handler;
774 else
775 arp_packet_handler = f;
wdenk2d966952002-10-31 22:12:35 +0000776}
777
Simon Glass39bccd22011-10-26 14:18:38 +0000778#ifdef CONFIG_CMD_TFTPPUT
Simon Glass4793ee62011-10-24 18:00:01 +0000779void net_set_icmp_handler(rxhand_icmp_f *f)
780{
781 packet_icmp_handler = f;
782}
Simon Glass39bccd22011-10-26 14:18:38 +0000783#endif
wdenk2d966952002-10-31 22:12:35 +0000784
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500785void net_set_timeout_handler(ulong iv, thand_f *f)
wdenk2d966952002-10-31 22:12:35 +0000786{
787 if (iv == 0) {
Joe Hershberger4ef8d532012-05-23 08:01:04 +0000788 debug_cond(DEBUG_INT_STATE,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500789 "--- net_loop timeout handler cancelled\n");
790 time_handler = (thand_f *)0;
wdenk2d966952002-10-31 22:12:35 +0000791 } else {
Joe Hershberger4ef8d532012-05-23 08:01:04 +0000792 debug_cond(DEBUG_INT_STATE,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500793 "--- net_loop timeout handler set (%p)\n", f);
794 time_handler = f;
795 time_start = get_timer(0);
796 time_delta = iv * CONFIG_SYS_HZ / 1000;
wdenk2d966952002-10-31 22:12:35 +0000797 }
798}
799
Joe Hershbergerac3f26c2018-09-26 16:49:02 -0500800uchar *net_get_async_tx_pkt_buf(void)
801{
802 if (arp_is_waiting())
803 return arp_tx_packet; /* If we are waiting, we already sent */
804 else
805 return net_tx_packet;
806}
807
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500808int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, int sport,
Joe Hershberger206d07f2012-05-23 07:58:10 +0000809 int payload_len)
wdenk73a8b272003-06-05 19:27:42 +0000810{
Duncan Hare5d457ec2018-06-24 15:40:41 -0700811 return net_send_ip_packet(ether, dest, dport, sport, payload_len,
812 IPPROTO_UDP, 0, 0, 0);
813}
814
815int net_send_ip_packet(uchar *ether, struct in_addr dest, int dport, int sport,
816 int payload_len, int proto, u8 action, u32 tcp_seq_num,
817 u32 tcp_ack_num)
818{
wdenka3d991b2004-04-15 21:48:45 +0000819 uchar *pkt;
Joe Hershberger92146372012-05-23 07:59:08 +0000820 int eth_hdr_size;
821 int pkt_hdr_size;
wdenka3d991b2004-04-15 21:48:45 +0000822
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500823 /* make sure the net_tx_packet is initialized (net_init() was called) */
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500824 assert(net_tx_packet != NULL);
825 if (net_tx_packet == NULL)
Joe Hershberger46c495d2012-05-23 07:59:22 +0000826 return -1;
827
wdenk73a8b272003-06-05 19:27:42 +0000828 /* convert to new style broadcast */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500829 if (dest.s_addr == 0)
830 dest.s_addr = 0xFFFFFFFF;
wdenk2d966952002-10-31 22:12:35 +0000831
wdenk73a8b272003-06-05 19:27:42 +0000832 /* if broadcast, make the ether address a broadcast and don't do ARP */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500833 if (dest.s_addr == 0xFFFFFFFF)
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500834 ether = (uchar *)net_bcast_ethaddr;
wdenk73a8b272003-06-05 19:27:42 +0000835
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500836 pkt = (uchar *)net_tx_packet;
wdenk73a8b272003-06-05 19:27:42 +0000837
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500838 eth_hdr_size = net_set_ether(pkt, ether, PROT_IP);
Duncan Hare5d457ec2018-06-24 15:40:41 -0700839
840 switch (proto) {
841 case IPPROTO_UDP:
842 net_set_udp_header(pkt + eth_hdr_size, dest, dport, sport,
843 payload_len);
844 pkt_hdr_size = eth_hdr_size + IP_UDP_HDR_SIZE;
845 break;
846 default:
847 return -EINVAL;
848 }
Robin Getz0ebf04c2009-07-23 03:01:03 -0400849
Joe Hershbergere94070c2012-05-23 07:59:24 +0000850 /* if MAC address was not discovered yet, do an ARP request */
Joe Hershberger0adb5b72015-04-08 01:41:04 -0500851 if (memcmp(ether, net_null_ethaddr, 6) == 0) {
Joe Hershberger4ef8d532012-05-23 08:01:04 +0000852 debug_cond(DEBUG_DEV_PKT, "sending ARP for %pI4\n", &dest);
Joe Hershberger92146372012-05-23 07:59:08 +0000853
854 /* save the ip and eth addr for the packet to send after arp */
Joe Hershberger049a95a2015-04-08 01:41:01 -0500855 net_arp_wait_packet_ip = dest;
Joe Hershberger85d25e02015-04-08 01:41:08 -0500856 arp_wait_packet_ethaddr = ether;
wdenka3d991b2004-04-15 21:48:45 +0000857
wdenk73a8b272003-06-05 19:27:42 +0000858 /* size of the waiting packet */
Joe Hershberger85d25e02015-04-08 01:41:08 -0500859 arp_wait_tx_packet_size = pkt_hdr_size + payload_len;
wdenk73a8b272003-06-05 19:27:42 +0000860
861 /* and do the ARP request */
Joe Hershberger85d25e02015-04-08 01:41:08 -0500862 arp_wait_try = 1;
863 arp_wait_timer_start = get_timer(0);
864 arp_request();
wdenk73a8b272003-06-05 19:27:42 +0000865 return 1; /* waiting */
Joe Hershberger92146372012-05-23 07:59:08 +0000866 } else {
Joe Hershberger4ef8d532012-05-23 08:01:04 +0000867 debug_cond(DEBUG_DEV_PKT, "sending UDP to %pI4/%pM\n",
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500868 &dest, ether);
Joe Hershberger1203fcc2015-04-08 01:41:05 -0500869 net_send_packet(net_tx_packet, pkt_hdr_size + payload_len);
Joe Hershberger92146372012-05-23 07:59:08 +0000870 return 0; /* transmitted */
wdenk73a8b272003-06-05 19:27:42 +0000871 }
wdenk73a8b272003-06-05 19:27:42 +0000872}
873
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200874#ifdef CONFIG_IP_DEFRAG
875/*
876 * This function collects fragments in a single packet, according
877 * to the algorithm in RFC815. It returns NULL or the pointer to
878 * a complete packet, in static storage
879 */
880#ifndef CONFIG_NET_MAXDEFRAG
881#define CONFIG_NET_MAXDEFRAG 16384
882#endif
Joe Hershbergeraa7a6482016-08-15 14:42:15 -0500883#define IP_PKTSIZE (CONFIG_NET_MAXDEFRAG)
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200884
Joe Hershbergerc5c59df2012-05-23 07:58:05 +0000885#define IP_MAXUDP (IP_PKTSIZE - IP_HDR_SIZE)
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200886
887/*
888 * this is the packet being assembled, either data or frag control.
889 * Fragments go by 8 bytes, so this union must be 8 bytes long
890 */
891struct hole {
892 /* first_byte is address of this structure */
893 u16 last_byte; /* last byte in this hole + 1 (begin of next hole) */
894 u16 next_hole; /* index of next (in 8-b blocks), 0 == none */
895 u16 prev_hole; /* index of prev, 0 == none */
896 u16 unused;
897};
898
Joe Hershbergerbc0571f2015-04-08 01:41:21 -0500899static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp)
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200900{
Joe Hershberger48522bb2012-05-15 08:59:08 +0000901 static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN);
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200902 static u16 first_hole, total_len;
903 struct hole *payload, *thisfrag, *h, *newh;
Joe Hershberger594c26f2012-05-23 07:58:04 +0000904 struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff;
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200905 uchar *indata = (uchar *)ip;
906 int offset8, start, len, done = 0;
907 u16 ip_off = ntohs(ip->ip_off);
908
909 /* payload starts after IP header, this fragment is in there */
Joe Hershbergerc5c59df2012-05-23 07:58:05 +0000910 payload = (struct hole *)(pkt_buff + IP_HDR_SIZE);
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200911 offset8 = (ip_off & IP_OFFS);
912 thisfrag = payload + offset8;
913 start = offset8 * 8;
Joe Hershbergerc5c59df2012-05-23 07:58:05 +0000914 len = ntohs(ip->ip_len) - IP_HDR_SIZE;
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200915
916 if (start + len > IP_MAXUDP) /* fragment extends too far */
917 return NULL;
918
919 if (!total_len || localip->ip_id != ip->ip_id) {
920 /* new (or different) packet, reset structs */
921 total_len = 0xffff;
922 payload[0].last_byte = ~0;
923 payload[0].next_hole = 0;
924 payload[0].prev_hole = 0;
925 first_hole = 0;
926 /* any IP header will work, copy the first we received */
Joe Hershbergerc5c59df2012-05-23 07:58:05 +0000927 memcpy(localip, ip, IP_HDR_SIZE);
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200928 }
929
930 /*
931 * What follows is the reassembly algorithm. We use the payload
932 * array as a linked list of hole descriptors, as each hole starts
933 * at a multiple of 8 bytes. However, last byte can be whatever value,
934 * so it is represented as byte count, not as 8-byte blocks.
935 */
936
937 h = payload + first_hole;
938 while (h->last_byte < start) {
939 if (!h->next_hole) {
940 /* no hole that far away */
941 return NULL;
942 }
943 h = payload + h->next_hole;
944 }
945
Fillod Stephanee397e592010-06-11 19:26:43 +0200946 /* last fragment may be 1..7 bytes, the "+7" forces acceptance */
947 if (offset8 + ((len + 7) / 8) <= h - payload) {
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200948 /* no overlap with holes (dup fragment?) */
949 return NULL;
950 }
951
952 if (!(ip_off & IP_FLAGS_MFRAG)) {
953 /* no more fragmentss: truncate this (last) hole */
954 total_len = start + len;
955 h->last_byte = start + len;
956 }
957
958 /*
959 * There is some overlap: fix the hole list. This code doesn't
960 * deal with a fragment that overlaps with two different holes
961 * (thus being a superset of a previously-received fragment).
962 */
963
Luca Ceresoli4f63acd2011-05-11 03:59:56 +0000964 if ((h >= thisfrag) && (h->last_byte <= start + len)) {
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +0200965 /* complete overlap with hole: remove hole */
966 if (!h->prev_hole && !h->next_hole) {
967 /* last remaining hole */
968 done = 1;
969 } else if (!h->prev_hole) {
970 /* first hole */
971 first_hole = h->next_hole;
972 payload[h->next_hole].prev_hole = 0;
973 } else if (!h->next_hole) {
974 /* last hole */
975 payload[h->prev_hole].next_hole = 0;
976 } else {
977 /* in the middle of the list */
978 payload[h->next_hole].prev_hole = h->prev_hole;
979 payload[h->prev_hole].next_hole = h->next_hole;
980 }
981
982 } else if (h->last_byte <= start + len) {
983 /* overlaps with final part of the hole: shorten this hole */
984 h->last_byte = start;
985
986 } else if (h >= thisfrag) {
987 /* overlaps with initial part of the hole: move this hole */
988 newh = thisfrag + (len / 8);
989 *newh = *h;
990 h = newh;
991 if (h->next_hole)
992 payload[h->next_hole].prev_hole = (h - payload);
993 if (h->prev_hole)
994 payload[h->prev_hole].next_hole = (h - payload);
995 else
996 first_hole = (h - payload);
997
998 } else {
999 /* fragment sits in the middle: split the hole */
1000 newh = thisfrag + (len / 8);
1001 *newh = *h;
1002 h->last_byte = start;
1003 h->next_hole = (newh - payload);
1004 newh->prev_hole = (h - payload);
1005 if (newh->next_hole)
1006 payload[newh->next_hole].prev_hole = (newh - payload);
1007 }
1008
1009 /* finally copy this fragment and possibly return whole packet */
Joe Hershbergerc5c59df2012-05-23 07:58:05 +00001010 memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len);
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001011 if (!done)
1012 return NULL;
1013
1014 localip->ip_len = htons(total_len);
Joe Hershbergerc5c59df2012-05-23 07:58:05 +00001015 *lenp = total_len + IP_HDR_SIZE;
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001016 return localip;
1017}
1018
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001019static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip,
1020 int *lenp)
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001021{
1022 u16 ip_off = ntohs(ip->ip_off);
1023 if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG)))
1024 return ip; /* not a fragment */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001025 return __net_defragment(ip, lenp);
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001026}
1027
1028#else /* !CONFIG_IP_DEFRAG */
1029
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001030static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip,
1031 int *lenp)
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001032{
1033 u16 ip_off = ntohs(ip->ip_off);
1034 if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG)))
1035 return ip; /* not a fragment */
1036 return NULL;
1037}
1038#endif
wdenka3d991b2004-04-15 21:48:45 +00001039
Simon Glass8f79bb12011-10-24 18:00:00 +00001040/**
1041 * Receive an ICMP packet. We deal with REDIRECT and PING here, and silently
1042 * drop others.
1043 *
1044 * @parma ip IP packet containing the ICMP
1045 */
Joe Hershberger594c26f2012-05-23 07:58:04 +00001046static void receive_icmp(struct ip_udp_hdr *ip, int len,
Joe Hershberger049a95a2015-04-08 01:41:01 -05001047 struct in_addr src_ip, struct ethernet_hdr *et)
Simon Glass8f79bb12011-10-24 18:00:00 +00001048{
Joe Hershbergere0a63072012-05-23 07:58:09 +00001049 struct icmp_hdr *icmph = (struct icmp_hdr *)&ip->udp_src;
Simon Glass8f79bb12011-10-24 18:00:00 +00001050
1051 switch (icmph->type) {
1052 case ICMP_REDIRECT:
1053 if (icmph->code != ICMP_REDIR_HOST)
1054 return;
1055 printf(" ICMP Host Redirect to %pI4 ",
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001056 &icmph->un.gateway);
Simon Glass8f79bb12011-10-24 18:00:00 +00001057 break;
Simon Glass8f79bb12011-10-24 18:00:00 +00001058 default:
Joe Hershbergera36b12f2012-05-23 07:58:02 +00001059#if defined(CONFIG_CMD_PING)
1060 ping_receive(et, ip, len);
1061#endif
Simon Glass39bccd22011-10-26 14:18:38 +00001062#ifdef CONFIG_CMD_TFTPPUT
Simon Glass4793ee62011-10-24 18:00:01 +00001063 if (packet_icmp_handler)
1064 packet_icmp_handler(icmph->type, icmph->code,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001065 ntohs(ip->udp_dst), src_ip,
1066 ntohs(ip->udp_src), icmph->un.data,
1067 ntohs(ip->udp_len));
Simon Glass39bccd22011-10-26 14:18:38 +00001068#endif
Simon Glass8f79bb12011-10-24 18:00:00 +00001069 break;
1070 }
1071}
1072
Joe Hershberger2a504df2015-03-22 17:09:11 -05001073void net_process_received_packet(uchar *in_packet, int len)
wdenk2d966952002-10-31 22:12:35 +00001074{
Joe Hershbergercb487f52012-05-23 07:58:06 +00001075 struct ethernet_hdr *et;
Joe Hershberger594c26f2012-05-23 07:58:04 +00001076 struct ip_udp_hdr *ip;
Joe Hershberger049a95a2015-04-08 01:41:01 -05001077 struct in_addr dst_ip;
1078 struct in_addr src_ip;
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001079 int eth_proto;
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001080#if defined(CONFIG_CMD_CDP)
wdenka3d991b2004-04-15 21:48:45 +00001081 int iscdp;
1082#endif
1083 ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid;
wdenk2d966952002-10-31 22:12:35 +00001084
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001085 debug_cond(DEBUG_NET_PKT, "packet received\n");
wdenka3d991b2004-04-15 21:48:45 +00001086
Joe Hershberger1203fcc2015-04-08 01:41:05 -05001087 net_rx_packet = in_packet;
1088 net_rx_packet_len = len;
Joe Hershberger2a504df2015-03-22 17:09:11 -05001089 et = (struct ethernet_hdr *)in_packet;
wdenka3d991b2004-04-15 21:48:45 +00001090
1091 /* too small packet? */
1092 if (len < ETHER_HDR_SIZE)
1093 return;
1094
Alexander Graf0efe1bc2016-05-06 21:01:01 +02001095#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER)
Rafal Jaworowskif85b6072007-12-27 18:19:02 +01001096 if (push_packet) {
Joe Hershberger2a504df2015-03-22 17:09:11 -05001097 (*push_packet)(in_packet, len);
Rafal Jaworowskif85b6072007-12-27 18:19:02 +01001098 return;
1099 }
1100#endif
1101
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001102#if defined(CONFIG_CMD_CDP)
wdenka3d991b2004-04-15 21:48:45 +00001103 /* keep track if packet is CDP */
Joe Hershberger17351882012-05-23 07:58:00 +00001104 iscdp = is_cdp_packet(et->et_dest);
wdenka3d991b2004-04-15 21:48:45 +00001105#endif
1106
Joe Hershberger4fd50552015-04-08 01:41:17 -05001107 myvlanid = ntohs(net_our_vlan);
wdenka3d991b2004-04-15 21:48:45 +00001108 if (myvlanid == (ushort)-1)
1109 myvlanid = VLAN_NONE;
Joe Hershberger4fd50552015-04-08 01:41:17 -05001110 mynvlanid = ntohs(net_native_vlan);
wdenka3d991b2004-04-15 21:48:45 +00001111 if (mynvlanid == (ushort)-1)
1112 mynvlanid = VLAN_NONE;
wdenk2d966952002-10-31 22:12:35 +00001113
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001114 eth_proto = ntohs(et->et_protlen);
wdenk2d966952002-10-31 22:12:35 +00001115
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001116 if (eth_proto < 1514) {
Joe Hershbergercb487f52012-05-23 07:58:06 +00001117 struct e802_hdr *et802 = (struct e802_hdr *)et;
wdenk2d966952002-10-31 22:12:35 +00001118 /*
Joe Hershbergerda5ebe22012-05-23 07:58:11 +00001119 * Got a 802.2 packet. Check the other protocol field.
1120 * XXX VLAN over 802.2+SNAP not implemented!
wdenk2d966952002-10-31 22:12:35 +00001121 */
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001122 eth_proto = ntohs(et802->et_prot);
wdenka3d991b2004-04-15 21:48:45 +00001123
Joe Hershberger2a504df2015-03-22 17:09:11 -05001124 ip = (struct ip_udp_hdr *)(in_packet + E802_HDR_SIZE);
wdenk2d966952002-10-31 22:12:35 +00001125 len -= E802_HDR_SIZE;
wdenka3d991b2004-04-15 21:48:45 +00001126
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001127 } else if (eth_proto != PROT_VLAN) { /* normal packet */
Joe Hershberger2a504df2015-03-22 17:09:11 -05001128 ip = (struct ip_udp_hdr *)(in_packet + ETHER_HDR_SIZE);
wdenk2d966952002-10-31 22:12:35 +00001129 len -= ETHER_HDR_SIZE;
wdenka3d991b2004-04-15 21:48:45 +00001130
1131 } else { /* VLAN packet */
Joe Hershbergerc68cca32012-05-23 07:58:07 +00001132 struct vlan_ethernet_hdr *vet =
1133 (struct vlan_ethernet_hdr *)et;
wdenka3d991b2004-04-15 21:48:45 +00001134
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001135 debug_cond(DEBUG_NET_PKT, "VLAN packet received\n");
Robin Getz0ebf04c2009-07-23 03:01:03 -04001136
wdenka3d991b2004-04-15 21:48:45 +00001137 /* too small packet? */
1138 if (len < VLAN_ETHER_HDR_SIZE)
1139 return;
1140
1141 /* if no VLAN active */
Joe Hershberger4fd50552015-04-08 01:41:17 -05001142 if ((ntohs(net_our_vlan) & VLAN_IDMASK) == VLAN_NONE
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001143#if defined(CONFIG_CMD_CDP)
wdenka3d991b2004-04-15 21:48:45 +00001144 && iscdp == 0
1145#endif
1146 )
1147 return;
1148
1149 cti = ntohs(vet->vet_tag);
1150 vlanid = cti & VLAN_IDMASK;
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001151 eth_proto = ntohs(vet->vet_type);
wdenka3d991b2004-04-15 21:48:45 +00001152
Joe Hershberger2a504df2015-03-22 17:09:11 -05001153 ip = (struct ip_udp_hdr *)(in_packet + VLAN_ETHER_HDR_SIZE);
wdenka3d991b2004-04-15 21:48:45 +00001154 len -= VLAN_ETHER_HDR_SIZE;
wdenk2d966952002-10-31 22:12:35 +00001155 }
1156
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001157 debug_cond(DEBUG_NET_PKT, "Receive from protocol 0x%x\n", eth_proto);
wdenk2d966952002-10-31 22:12:35 +00001158
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001159#if defined(CONFIG_CMD_CDP)
wdenka3d991b2004-04-15 21:48:45 +00001160 if (iscdp) {
Joe Hershberger0b4c5ff2012-05-23 07:58:13 +00001161 cdp_receive((uchar *)ip, len);
wdenka3d991b2004-04-15 21:48:45 +00001162 return;
1163 }
1164#endif
1165
1166 if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) {
1167 if (vlanid == VLAN_NONE)
1168 vlanid = (mynvlanid & VLAN_IDMASK);
1169 /* not matched? */
1170 if (vlanid != (myvlanid & VLAN_IDMASK))
1171 return;
1172 }
1173
Joe Hershberger8d353eb2012-05-23 07:58:12 +00001174 switch (eth_proto) {
wdenk2d966952002-10-31 22:12:35 +00001175 case PROT_ARP:
Joe Hershberger85d25e02015-04-08 01:41:08 -05001176 arp_receive(et, ip, len);
wdenk289f9322005-01-12 00:15:14 +00001177 break;
wdenk2d966952002-10-31 22:12:35 +00001178
Peter Tyserbf6cb242010-09-30 11:25:48 -05001179#ifdef CONFIG_CMD_RARP
wdenk2d966952002-10-31 22:12:35 +00001180 case PROT_RARP:
Joe Hershberger8b9c5322012-05-23 07:58:03 +00001181 rarp_receive(ip, len);
wdenk2d966952002-10-31 22:12:35 +00001182 break;
Peter Tyserbf6cb242010-09-30 11:25:48 -05001183#endif
wdenk2d966952002-10-31 22:12:35 +00001184 case PROT_IP:
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001185 debug_cond(DEBUG_NET_PKT, "Got IP\n");
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001186 /* Before we start poking the header, make sure it is there */
Joe Hershberger594c26f2012-05-23 07:58:04 +00001187 if (len < IP_UDP_HDR_SIZE) {
1188 debug("len bad %d < %lu\n", len,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001189 (ulong)IP_UDP_HDR_SIZE);
wdenk2d966952002-10-31 22:12:35 +00001190 return;
1191 }
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001192 /* Check the packet length */
wdenk2d966952002-10-31 22:12:35 +00001193 if (len < ntohs(ip->ip_len)) {
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001194 debug("len bad %d < %d\n", len, ntohs(ip->ip_len));
wdenk2d966952002-10-31 22:12:35 +00001195 return;
1196 }
1197 len = ntohs(ip->ip_len);
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001198 debug_cond(DEBUG_NET_PKT, "len=%d, v=%02x\n",
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001199 len, ip->ip_hl_v & 0xff);
Robin Getz0ebf04c2009-07-23 03:01:03 -04001200
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001201 /* Can't deal with anything except IPv4 */
Luca Ceresolid3c65b02011-05-04 02:40:43 +00001202 if ((ip->ip_hl_v & 0xf0) != 0x40)
wdenk2d966952002-10-31 22:12:35 +00001203 return;
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001204 /* Can't deal with IP options (headers != 20 bytes) */
Luca Ceresolid3c65b02011-05-04 02:40:43 +00001205 if ((ip->ip_hl_v & 0x0f) > 0x05)
Remy Bohmer6b52cfe2008-06-03 15:48:17 +02001206 return;
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001207 /* Check the Checksum of the header */
Simon Glass0da0fcd2015-01-19 22:16:08 -07001208 if (!ip_checksum_ok((uchar *)ip, IP_HDR_SIZE)) {
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001209 debug("checksum bad\n");
wdenk2d966952002-10-31 22:12:35 +00001210 return;
1211 }
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001212 /* If it is not for us, ignore it */
Joe Hershberger049a95a2015-04-08 01:41:01 -05001213 dst_ip = net_read_ip(&ip->ip_dst);
1214 if (net_ip.s_addr && dst_ip.s_addr != net_ip.s_addr &&
1215 dst_ip.s_addr != 0xFFFFFFFF) {
Luca Ceresolic819abe2011-05-04 02:40:46 +00001216 return;
wdenk2d966952002-10-31 22:12:35 +00001217 }
Luca Ceresoli03eb1292011-04-18 06:19:50 +00001218 /* Read source IP address for later use */
Joe Hershberger049a95a2015-04-08 01:41:01 -05001219 src_ip = net_read_ip(&ip->ip_src);
wdenk2d966952002-10-31 22:12:35 +00001220 /*
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001221 * The function returns the unchanged packet if it's not
1222 * a fragment, and either the complete packet or NULL if
1223 * it is a fragment (if !CONFIG_IP_DEFRAG, it returns NULL)
1224 */
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001225 ip = net_defragment(ip, &len);
Luca Ceresoliccb9ebe2011-05-04 02:40:47 +00001226 if (!ip)
Alessandro Rubini5cfaa4e2009-08-07 13:58:56 +02001227 return;
1228 /*
wdenk2d966952002-10-31 22:12:35 +00001229 * watch for ICMP host redirects
1230 *
wdenk8bde7f72003-06-27 21:31:46 +00001231 * There is no real handler code (yet). We just watch
1232 * for ICMP host redirect messages. In case anybody
1233 * sees these messages: please contact me
1234 * (wd@denx.de), or - even better - send me the
1235 * necessary fixes :-)
wdenk2d966952002-10-31 22:12:35 +00001236 *
wdenk8bde7f72003-06-27 21:31:46 +00001237 * Note: in all cases where I have seen this so far
1238 * it was a problem with the router configuration,
1239 * for instance when a router was configured in the
1240 * BOOTP reply, but the TFTP server was on the same
1241 * subnet. So this is probably a warning that your
1242 * configuration might be wrong. But I'm not really
1243 * sure if there aren't any other situations.
Simon Glass4793ee62011-10-24 18:00:01 +00001244 *
1245 * Simon Glass <sjg@chromium.org>: We get an ICMP when
1246 * we send a tftp packet to a dead connection, or when
1247 * there is no server at the other end.
wdenk2d966952002-10-31 22:12:35 +00001248 */
1249 if (ip->ip_p == IPPROTO_ICMP) {
Simon Glass8f79bb12011-10-24 18:00:00 +00001250 receive_icmp(ip, len, src_ip, et);
1251 return;
wdenk2d966952002-10-31 22:12:35 +00001252 } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */
1253 return;
1254 }
1255
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001256 debug_cond(DEBUG_DEV_PKT,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001257 "received UDP (to=%pI4, from=%pI4, len=%d)\n",
1258 &dst_ip, &src_ip, len);
Joe Hershberger4ef8d532012-05-23 08:01:04 +00001259
Stefan Roese8534bf92005-08-12 20:06:52 +02001260#ifdef CONFIG_UDP_CHECKSUM
1261 if (ip->udp_xsum != 0) {
Wolfgang Denkb2f50802005-08-12 23:43:12 +02001262 ulong xsum;
Stefan Roese8534bf92005-08-12 20:06:52 +02001263 ushort *sumptr;
1264 ushort sumlen;
1265
1266 xsum = ip->ip_p;
1267 xsum += (ntohs(ip->udp_len));
Joe Hershberger049a95a2015-04-08 01:41:01 -05001268 xsum += (ntohl(ip->ip_src.s_addr) >> 16) & 0x0000ffff;
1269 xsum += (ntohl(ip->ip_src.s_addr) >> 0) & 0x0000ffff;
1270 xsum += (ntohl(ip->ip_dst.s_addr) >> 16) & 0x0000ffff;
1271 xsum += (ntohl(ip->ip_dst.s_addr) >> 0) & 0x0000ffff;
Stefan Roese8534bf92005-08-12 20:06:52 +02001272
1273 sumlen = ntohs(ip->udp_len);
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001274 sumptr = (ushort *)&(ip->udp_src);
Stefan Roese8534bf92005-08-12 20:06:52 +02001275
1276 while (sumlen > 1) {
Wolfgang Denkb2f50802005-08-12 23:43:12 +02001277 ushort sumdata;
Stefan Roese8534bf92005-08-12 20:06:52 +02001278
1279 sumdata = *sumptr++;
1280 xsum += ntohs(sumdata);
1281 sumlen -= 2;
1282 }
1283 if (sumlen > 0) {
Wolfgang Denkb2f50802005-08-12 23:43:12 +02001284 ushort sumdata;
Stefan Roese8534bf92005-08-12 20:06:52 +02001285
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001286 sumdata = *(unsigned char *)sumptr;
Wolfgang Denkb2f50802005-08-12 23:43:12 +02001287 sumdata = (sumdata << 8) & 0xff00;
Stefan Roese8534bf92005-08-12 20:06:52 +02001288 xsum += sumdata;
1289 }
1290 while ((xsum >> 16) != 0) {
Luca Ceresoli3e38e422011-05-11 03:59:54 +00001291 xsum = (xsum & 0x0000ffff) +
1292 ((xsum >> 16) & 0x0000ffff);
Stefan Roese8534bf92005-08-12 20:06:52 +02001293 }
1294 if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) {
Wolfgang Denk9b55a252008-07-11 01:16:00 +02001295 printf(" UDP wrong checksum %08lx %08x\n",
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001296 xsum, ntohs(ip->udp_xsum));
Stefan Roese8534bf92005-08-12 20:06:52 +02001297 return;
1298 }
1299 }
1300#endif
1301
Holger Dengler66c89ee2017-07-20 10:10:55 +02001302#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD)
Joe Hershberger594c26f2012-05-23 07:58:04 +00001303 nc_input_packet((uchar *)ip + IP_UDP_HDR_SIZE,
Joe Hershbergerece223b2012-05-23 07:59:15 +00001304 src_ip,
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001305 ntohs(ip->udp_dst),
Joe Hershbergerece223b2012-05-23 07:59:15 +00001306 ntohs(ip->udp_src),
1307 ntohs(ip->udp_len) - UDP_HDR_SIZE);
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001308#endif
1309 /*
1310 * IP header OK. Pass the packet to the current handler.
1311 */
1312 (*udp_packet_handler)((uchar *)ip + IP_UDP_HDR_SIZE,
1313 ntohs(ip->udp_dst),
1314 src_ip,
1315 ntohs(ip->udp_src),
1316 ntohs(ip->udp_len) - UDP_HDR_SIZE);
wdenk2d966952002-10-31 22:12:35 +00001317 break;
Lothar Feltend8970da2018-06-22 22:29:54 +02001318#ifdef CONFIG_CMD_WOL
1319 case PROT_WOL:
1320 wol_receive(ip, len);
1321 break;
1322#endif
wdenk2d966952002-10-31 22:12:35 +00001323 }
1324}
1325
wdenk2d966952002-10-31 22:12:35 +00001326/**********************************************************************/
1327
Simon Glasse4bf0c52011-10-24 18:00:02 +00001328static int net_check_prereq(enum proto_t protocol)
wdenk2d966952002-10-31 22:12:35 +00001329{
1330 switch (protocol) {
wdenk6e592382004-04-18 17:39:38 +00001331 /* Fall through */
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001332#if defined(CONFIG_CMD_PING)
wdenk73a8b272003-06-05 19:27:42 +00001333 case PING:
Joe Hershberger049a95a2015-04-08 01:41:01 -05001334 if (net_ping_ip.s_addr == 0) {
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001335 puts("*** ERROR: ping address not given\n");
Luca Ceresoli92895de2011-05-04 02:40:45 +00001336 return 1;
wdenk6e592382004-04-18 17:39:38 +00001337 }
1338 goto common;
wdenk73a8b272003-06-05 19:27:42 +00001339#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001340#if defined(CONFIG_CMD_SNTP)
wdenkea287de2005-04-01 00:25:43 +00001341 case SNTP:
Joe Hershberger049a95a2015-04-08 01:41:01 -05001342 if (net_ntp_server.s_addr == 0) {
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001343 puts("*** ERROR: NTP server address not given\n");
Luca Ceresoli92895de2011-05-04 02:40:45 +00001344 return 1;
wdenkea287de2005-04-01 00:25:43 +00001345 }
1346 goto common;
1347#endif
Robin Getz1a32bf42009-07-20 14:53:54 -04001348#if defined(CONFIG_CMD_DNS)
1349 case DNS:
Joe Hershberger049a95a2015-04-08 01:41:01 -05001350 if (net_dns_server.s_addr == 0) {
Robin Getz1a32bf42009-07-20 14:53:54 -04001351 puts("*** ERROR: DNS server address not given\n");
1352 return 1;
1353 }
1354 goto common;
1355#endif
Jon Loeliger643d1ab2007-07-09 17:45:14 -05001356#if defined(CONFIG_CMD_NFS)
wdenkcbd8a352004-02-24 02:00:03 +00001357 case NFS:
1358#endif
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001359 /* Fall through */
Simon Glasse4bf0c52011-10-24 18:00:02 +00001360 case TFTPGET:
Simon Glass1fb7cd42011-10-24 18:00:07 +00001361 case TFTPPUT:
Joe Hershberger3a66fcb2018-07-03 19:36:39 -05001362 if (net_server_ip.s_addr == 0 && !is_serverip_in_cmd()) {
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001363 puts("*** ERROR: `serverip' not set\n");
Luca Ceresoli92895de2011-05-04 02:40:45 +00001364 return 1;
wdenk6e592382004-04-18 17:39:38 +00001365 }
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001366#if defined(CONFIG_CMD_PING) || defined(CONFIG_CMD_SNTP) || \
1367 defined(CONFIG_CMD_DNS)
1368common:
wdenk73a8b272003-06-05 19:27:42 +00001369#endif
Simon Guinot8b6bbe12011-05-01 23:38:40 +00001370 /* Fall through */
wdenk73a8b272003-06-05 19:27:42 +00001371
Simon Guinot8b6bbe12011-05-01 23:38:40 +00001372 case NETCONS:
Alex Kiernanf73a7df2018-05-29 15:30:53 +00001373 case FASTBOOT:
Luca Ceresoli7a83af02011-05-17 00:03:40 +00001374 case TFTPSRV:
Joe Hershberger049a95a2015-04-08 01:41:01 -05001375 if (net_ip.s_addr == 0) {
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001376 puts("*** ERROR: `ipaddr' not set\n");
Luca Ceresoli92895de2011-05-04 02:40:45 +00001377 return 1;
wdenk6e592382004-04-18 17:39:38 +00001378 }
1379 /* Fall through */
wdenk2d966952002-10-31 22:12:35 +00001380
Peter Tyserbf6cb242010-09-30 11:25:48 -05001381#ifdef CONFIG_CMD_RARP
wdenk2d966952002-10-31 22:12:35 +00001382 case RARP:
Peter Tyserbf6cb242010-09-30 11:25:48 -05001383#endif
wdenk2d966952002-10-31 22:12:35 +00001384 case BOOTP:
wdenka3d991b2004-04-15 21:48:45 +00001385 case CDP:
Peter Tyserbf6cb242010-09-30 11:25:48 -05001386 case DHCP:
Joe Hershbergerd22c3382012-05-23 08:00:12 +00001387 case LINKLOCAL:
Joe Hershberger0adb5b72015-04-08 01:41:04 -05001388 if (memcmp(net_ethaddr, "\0\0\0\0\0\0", 6) == 0) {
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001389 int num = eth_get_dev_index();
wdenk2d966952002-10-31 22:12:35 +00001390
wdenk6e592382004-04-18 17:39:38 +00001391 switch (num) {
1392 case -1:
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001393 puts("*** ERROR: No ethernet found.\n");
Luca Ceresoli92895de2011-05-04 02:40:45 +00001394 return 1;
wdenk6e592382004-04-18 17:39:38 +00001395 case 0:
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001396 puts("*** ERROR: `ethaddr' not set\n");
wdenk2d966952002-10-31 22:12:35 +00001397 break;
wdenk6e592382004-04-18 17:39:38 +00001398 default:
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001399 printf("*** ERROR: `eth%daddr' not set\n",
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001400 num);
wdenk2d966952002-10-31 22:12:35 +00001401 break;
wdenk2d966952002-10-31 22:12:35 +00001402 }
wdenk6e592382004-04-18 17:39:38 +00001403
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001404 net_start_again();
Luca Ceresoli92895de2011-05-04 02:40:45 +00001405 return 2;
wdenk6e592382004-04-18 17:39:38 +00001406 }
1407 /* Fall through */
1408 default:
Luca Ceresoli92895de2011-05-04 02:40:45 +00001409 return 0;
wdenk2d966952002-10-31 22:12:35 +00001410 }
Luca Ceresoli92895de2011-05-04 02:40:45 +00001411 return 0; /* OK */
wdenk2d966952002-10-31 22:12:35 +00001412}
1413/**********************************************************************/
1414
1415int
Joe Hershberger1203fcc2015-04-08 01:41:05 -05001416net_eth_hdr_size(void)
wdenka3d991b2004-04-15 21:48:45 +00001417{
1418 ushort myvlanid;
wdenk2d966952002-10-31 22:12:35 +00001419
Joe Hershberger4fd50552015-04-08 01:41:17 -05001420 myvlanid = ntohs(net_our_vlan);
wdenka3d991b2004-04-15 21:48:45 +00001421 if (myvlanid == (ushort)-1)
1422 myvlanid = VLAN_NONE;
1423
Luca Ceresoli3e38e422011-05-11 03:59:54 +00001424 return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE :
1425 VLAN_ETHER_HDR_SIZE;
wdenka3d991b2004-04-15 21:48:45 +00001426}
1427
Joe Hershberger1203fcc2015-04-08 01:41:05 -05001428int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot)
wdenk2d966952002-10-31 22:12:35 +00001429{
Joe Hershbergercb487f52012-05-23 07:58:06 +00001430 struct ethernet_hdr *et = (struct ethernet_hdr *)xet;
wdenka3d991b2004-04-15 21:48:45 +00001431 ushort myvlanid;
1432
Joe Hershberger4fd50552015-04-08 01:41:17 -05001433 myvlanid = ntohs(net_our_vlan);
wdenka3d991b2004-04-15 21:48:45 +00001434 if (myvlanid == (ushort)-1)
1435 myvlanid = VLAN_NONE;
wdenk2d966952002-10-31 22:12:35 +00001436
Joe Hershberger0adb5b72015-04-08 01:41:04 -05001437 memcpy(et->et_dest, dest_ethaddr, 6);
1438 memcpy(et->et_src, net_ethaddr, 6);
wdenka3d991b2004-04-15 21:48:45 +00001439 if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) {
Luca Ceresolic819abe2011-05-04 02:40:46 +00001440 et->et_protlen = htons(prot);
wdenka3d991b2004-04-15 21:48:45 +00001441 return ETHER_HDR_SIZE;
1442 } else {
Joe Hershbergerc68cca32012-05-23 07:58:07 +00001443 struct vlan_ethernet_hdr *vet =
1444 (struct vlan_ethernet_hdr *)xet;
wdenk2d966952002-10-31 22:12:35 +00001445
wdenka3d991b2004-04-15 21:48:45 +00001446 vet->vet_vlan_type = htons(PROT_VLAN);
1447 vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK));
1448 vet->vet_type = htons(prot);
1449 return VLAN_ETHER_HDR_SIZE;
1450 }
1451}
wdenk2d966952002-10-31 22:12:35 +00001452
Joe Hershbergere7111012012-05-23 07:59:16 +00001453int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot)
1454{
1455 ushort protlen;
1456
1457 memcpy(et->et_dest, addr, 6);
Joe Hershberger0adb5b72015-04-08 01:41:04 -05001458 memcpy(et->et_src, net_ethaddr, 6);
Joe Hershbergere7111012012-05-23 07:59:16 +00001459 protlen = ntohs(et->et_protlen);
1460 if (protlen == PROT_VLAN) {
1461 struct vlan_ethernet_hdr *vet =
1462 (struct vlan_ethernet_hdr *)et;
1463 vet->vet_type = htons(prot);
1464 return VLAN_ETHER_HDR_SIZE;
1465 } else if (protlen > 1514) {
1466 et->et_protlen = htons(prot);
1467 return ETHER_HDR_SIZE;
1468 } else {
1469 /* 802.2 + SNAP */
1470 struct e802_hdr *et802 = (struct e802_hdr *)et;
1471 et802->et_prot = htons(prot);
1472 return E802_HDR_SIZE;
1473 }
1474}
1475
Duncan Hare5d457ec2018-06-24 15:40:41 -07001476void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source,
1477 u16 pkt_len, u8 proto)
wdenk2d966952002-10-31 22:12:35 +00001478{
Joe Hershberger4b11c912012-05-23 07:59:07 +00001479 struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt;
1480
1481 /*
1482 * Construct an IP header.
1483 */
1484 /* IP_HDR_SIZE / 4 (not including UDP) */
1485 ip->ip_hl_v = 0x45;
1486 ip->ip_tos = 0;
Duncan Hare5d457ec2018-06-24 15:40:41 -07001487 ip->ip_len = htons(pkt_len);
1488 ip->ip_p = proto;
Joe Hershbergerbc0571f2015-04-08 01:41:21 -05001489 ip->ip_id = htons(net_ip_id++);
Joe Hershberger4b11c912012-05-23 07:59:07 +00001490 ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */
1491 ip->ip_ttl = 255;
1492 ip->ip_sum = 0;
1493 /* already in network byte order */
Joe Hershberger049a95a2015-04-08 01:41:01 -05001494 net_copy_ip((void *)&ip->ip_src, &source);
Joe Hershberger4b11c912012-05-23 07:59:07 +00001495 /* already in network byte order */
Joe Hershberger049a95a2015-04-08 01:41:01 -05001496 net_copy_ip((void *)&ip->ip_dst, &dest);
Duncan Hare5d457ec2018-06-24 15:40:41 -07001497
1498 ip->ip_sum = compute_ip_checksum(ip, IP_HDR_SIZE);
Joe Hershberger4b11c912012-05-23 07:59:07 +00001499}
1500
Joe Hershberger049a95a2015-04-08 01:41:01 -05001501void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport,
Joe Hershberger4b11c912012-05-23 07:59:07 +00001502 int len)
1503{
1504 struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt;
wdenk2d966952002-10-31 22:12:35 +00001505
1506 /*
1507 * If the data is an odd number of bytes, zero the
1508 * byte after the last byte so that the checksum
1509 * will work.
1510 */
1511 if (len & 1)
Joe Hershberger4b11c912012-05-23 07:59:07 +00001512 pkt[IP_UDP_HDR_SIZE + len] = 0;
wdenk2d966952002-10-31 22:12:35 +00001513
Duncan Hare5d457ec2018-06-24 15:40:41 -07001514 net_set_ip_header(pkt, dest, net_ip, IP_UDP_HDR_SIZE + len,
1515 IPPROTO_UDP);
Joe Hershberger4b11c912012-05-23 07:59:07 +00001516
wdenk2d966952002-10-31 22:12:35 +00001517 ip->udp_src = htons(sport);
1518 ip->udp_dst = htons(dport);
Joe Hershberger594c26f2012-05-23 07:58:04 +00001519 ip->udp_len = htons(UDP_HDR_SIZE + len);
wdenk2d966952002-10-31 22:12:35 +00001520 ip->udp_xsum = 0;
wdenk2d966952002-10-31 22:12:35 +00001521}
1522
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001523void copy_filename(char *dst, const char *src, int size)
wdenk2d966952002-10-31 22:12:35 +00001524{
Joe Hershberger16cf1452018-07-03 19:36:41 -05001525 if (src && *src && (*src == '"')) {
wdenk2d966952002-10-31 22:12:35 +00001526 ++src;
1527 --size;
1528 }
1529
Joe Hershberger16cf1452018-07-03 19:36:41 -05001530 while ((--size > 0) && src && *src && (*src != '"'))
wdenk2d966952002-10-31 22:12:35 +00001531 *dst++ = *src++;
wdenk2d966952002-10-31 22:12:35 +00001532 *dst = '\0';
1533}
1534
Joe Hershberger3a66fcb2018-07-03 19:36:39 -05001535int is_serverip_in_cmd(void)
1536{
1537 return !!strchr(net_boot_file_name, ':');
1538}
1539
Joe Hershberger6ab12832018-07-03 19:36:43 -05001540int net_parse_bootfile(struct in_addr *ipaddr, char *filename, int max_len)
1541{
1542 char *colon;
1543
1544 if (net_boot_file_name[0] == '\0')
1545 return 0;
1546
1547 colon = strchr(net_boot_file_name, ':');
1548 if (colon) {
1549 if (ipaddr)
1550 *ipaddr = string_to_ip(net_boot_file_name);
1551 strncpy(filename, colon + 1, max_len);
1552 } else {
1553 strncpy(filename, net_boot_file_name, max_len);
1554 }
1555 filename[max_len - 1] = '\0';
1556
1557 return 1;
1558}
1559
Luca Ceresoli3e38e422011-05-11 03:59:54 +00001560#if defined(CONFIG_CMD_NFS) || \
1561 defined(CONFIG_CMD_SNTP) || \
1562 defined(CONFIG_CMD_DNS)
Robin Getz1a32bf42009-07-20 14:53:54 -04001563/*
Robin Getz97399462010-03-08 14:07:00 -05001564 * make port a little random (1024-17407)
1565 * This keeps the math somewhat trivial to compute, and seems to work with
1566 * all supported protocols/clients/servers
Robin Getz1a32bf42009-07-20 14:53:54 -04001567 */
1568unsigned int random_port(void)
1569{
Robin Getz97399462010-03-08 14:07:00 -05001570 return 1024 + (get_timer(0) % 0x4000);
Robin Getz1a32bf42009-07-20 14:53:54 -04001571}
1572#endif
1573
Joe Hershberger049a95a2015-04-08 01:41:01 -05001574void ip_to_string(struct in_addr x, char *s)
wdenk2d966952002-10-31 22:12:35 +00001575{
Joe Hershberger049a95a2015-04-08 01:41:01 -05001576 x.s_addr = ntohl(x.s_addr);
Luca Ceresoli4f63acd2011-05-11 03:59:56 +00001577 sprintf(s, "%d.%d.%d.%d",
Joe Hershberger049a95a2015-04-08 01:41:01 -05001578 (int) ((x.s_addr >> 24) & 0xff),
1579 (int) ((x.s_addr >> 16) & 0xff),
1580 (int) ((x.s_addr >> 8) & 0xff),
1581 (int) ((x.s_addr >> 0) & 0xff)
wdenk6e592382004-04-18 17:39:38 +00001582 );
wdenk2d966952002-10-31 22:12:35 +00001583}
1584
Joe Hershberger4fd50552015-04-08 01:41:17 -05001585void vlan_to_string(ushort x, char *s)
wdenka3d991b2004-04-15 21:48:45 +00001586{
1587 x = ntohs(x);
1588
1589 if (x == (ushort)-1)
1590 x = VLAN_NONE;
1591
1592 if (x == VLAN_NONE)
1593 strcpy(s, "none");
1594 else
1595 sprintf(s, "%d", x & VLAN_IDMASK);
1596}
1597
Joe Hershberger4fd50552015-04-08 01:41:17 -05001598ushort string_to_vlan(const char *s)
wdenka3d991b2004-04-15 21:48:45 +00001599{
1600 ushort id;
1601
1602 if (s == NULL)
wdenkb9711de2004-04-25 13:18:40 +00001603 return htons(VLAN_NONE);
wdenka3d991b2004-04-15 21:48:45 +00001604
1605 if (*s < '0' || *s > '9')
1606 id = VLAN_NONE;
1607 else
1608 id = (ushort)simple_strtoul(s, NULL, 10);
1609
wdenkb9711de2004-04-25 13:18:40 +00001610 return htons(id);
wdenka3d991b2004-04-15 21:48:45 +00001611}
1612
Simon Glass723806c2017-08-03 12:22:15 -06001613ushort env_get_vlan(char *var)
wdenka3d991b2004-04-15 21:48:45 +00001614{
Simon Glass00caae62017-08-03 12:22:12 -06001615 return string_to_vlan(env_get(var));
wdenka3d991b2004-04-15 21:48:45 +00001616}
Simon Glass36c8b142019-08-01 09:46:54 -06001617
1618void eth_parse_enetaddr(const char *addr, uint8_t *enetaddr)
1619{
1620 char *end;
1621 int i;
1622
1623 for (i = 0; i < 6; ++i) {
1624 enetaddr[i] = addr ? simple_strtoul(addr, &end, 16) : 0;
1625 if (addr)
1626 addr = (*end) ? end + 1 : end;
1627 }
1628}