]>
Commit | Line | Data |
---|---|---|
83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
06283a64 JH |
2 | /* |
3 | * Copyright 2010-2011 Calxeda, Inc. | |
1fb7d0e6 | 4 | * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. |
06283a64 | 5 | */ |
1a459660 | 6 | |
06283a64 JH |
7 | #include <common.h> |
8 | #include <command.h> | |
9 | #include <malloc.h> | |
0eb25b61 | 10 | #include <mapmem.h> |
06283a64 JH |
11 | #include <linux/string.h> |
12 | #include <linux/ctype.h> | |
13 | #include <errno.h> | |
14 | #include <linux/list.h> | |
6d1a3e5f | 15 | #include <fs.h> |
4a0bd102 | 16 | #include <asm/io.h> |
06283a64 JH |
17 | |
18 | #include "menu.h" | |
b1ba62d4 | 19 | #include "cli.h" |
06283a64 JH |
20 | |
21 | #define MAX_TFTP_PATH_LEN 127 | |
22 | ||
39f98553 | 23 | const char *pxe_default_paths[] = { |
58d9ff93 | 24 | #ifdef CONFIG_SYS_SOC |
39f98553 | 25 | "default-" CONFIG_SYS_ARCH "-" CONFIG_SYS_SOC, |
58d9ff93 | 26 | #endif |
39f98553 RH |
27 | "default-" CONFIG_SYS_ARCH, |
28 | "default", | |
29 | NULL | |
30 | }; | |
31 | ||
e5a9a407 RH |
32 | static bool is_pxe; |
33 | ||
06283a64 | 34 | /* |
00caae6d SG |
35 | * Like env_get, but prints an error if envvar isn't defined in the |
36 | * environment. It always returns what env_get does, so it can be used in | |
37 | * place of env_get without changing error handling otherwise. | |
06283a64 | 38 | */ |
23b7194e | 39 | static char *from_env(const char *envvar) |
06283a64 JH |
40 | { |
41 | char *ret; | |
42 | ||
00caae6d | 43 | ret = env_get(envvar); |
06283a64 JH |
44 | |
45 | if (!ret) | |
46 | printf("missing environment variable: %s\n", envvar); | |
47 | ||
48 | return ret; | |
49 | } | |
50 | ||
b81fdb04 | 51 | #ifdef CONFIG_CMD_NET |
06283a64 JH |
52 | /* |
53 | * Convert an ethaddr from the environment to the format used by pxelinux | |
54 | * filenames based on mac addresses. Convert's ':' to '-', and adds "01-" to | |
55 | * the beginning of the ethernet address to indicate a hardware type of | |
56 | * Ethernet. Also converts uppercase hex characters into lowercase, to match | |
57 | * pxelinux's behavior. | |
58 | * | |
59 | * Returns 1 for success, -ENOENT if 'ethaddr' is undefined in the | |
60 | * environment, or some other value < 0 on error. | |
61 | */ | |
62 | static int format_mac_pxe(char *outbuf, size_t outbuf_len) | |
63 | { | |
ef034c9d | 64 | uchar ethaddr[6]; |
06283a64 | 65 | |
ef034c9d | 66 | if (outbuf_len < 21) { |
5cea95cb | 67 | printf("outbuf is too small (%zd < 21)\n", outbuf_len); |
06283a64 JH |
68 | |
69 | return -EINVAL; | |
70 | } | |
71 | ||
35affd7a | 72 | if (!eth_env_get_enetaddr_by_index("eth", eth_get_dev_index(), ethaddr)) |
ef034c9d | 73 | return -ENOENT; |
06283a64 | 74 | |
ef034c9d RH |
75 | sprintf(outbuf, "01-%02x-%02x-%02x-%02x-%02x-%02x", |
76 | ethaddr[0], ethaddr[1], ethaddr[2], | |
77 | ethaddr[3], ethaddr[4], ethaddr[5]); | |
06283a64 JH |
78 | |
79 | return 1; | |
80 | } | |
b81fdb04 | 81 | #endif |
06283a64 JH |
82 | |
83 | /* | |
84 | * Returns the directory the file specified in the bootfile env variable is | |
85 | * in. If bootfile isn't defined in the environment, return NULL, which should | |
86 | * be interpreted as "don't prepend anything to paths". | |
87 | */ | |
90ba7d7c RH |
88 | static int get_bootfile_path(const char *file_path, char *bootfile_path, |
89 | size_t bootfile_path_size) | |
06283a64 JH |
90 | { |
91 | char *bootfile, *last_slash; | |
90ba7d7c RH |
92 | size_t path_len = 0; |
93 | ||
e5a9a407 RH |
94 | /* Only syslinux allows absolute paths */ |
95 | if (file_path[0] == '/' && !is_pxe) | |
90ba7d7c | 96 | goto ret; |
06283a64 JH |
97 | |
98 | bootfile = from_env("bootfile"); | |
99 | ||
90ba7d7c RH |
100 | if (!bootfile) |
101 | goto ret; | |
06283a64 JH |
102 | |
103 | last_slash = strrchr(bootfile, '/'); | |
104 | ||
90ba7d7c RH |
105 | if (last_slash == NULL) |
106 | goto ret; | |
06283a64 JH |
107 | |
108 | path_len = (last_slash - bootfile) + 1; | |
109 | ||
110 | if (bootfile_path_size < path_len) { | |
5cea95cb | 111 | printf("bootfile_path too small. (%zd < %zd)\n", |
06283a64 JH |
112 | bootfile_path_size, path_len); |
113 | ||
114 | return -1; | |
115 | } | |
116 | ||
117 | strncpy(bootfile_path, bootfile, path_len); | |
118 | ||
90ba7d7c | 119 | ret: |
06283a64 JH |
120 | bootfile_path[path_len] = '\0'; |
121 | ||
122 | return 1; | |
123 | } | |
124 | ||
0e3f3f8a | 125 | static int (*do_getfile)(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr); |
669df7e4 | 126 | |
b81fdb04 | 127 | #ifdef CONFIG_CMD_NET |
0e3f3f8a | 128 | static int do_get_tftp(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr) |
669df7e4 RH |
129 | { |
130 | char *tftp_argv[] = {"tftp", NULL, NULL, NULL}; | |
131 | ||
132 | tftp_argv[1] = file_addr; | |
23b7194e | 133 | tftp_argv[2] = (void *)file_path; |
669df7e4 | 134 | |
0e3f3f8a | 135 | if (do_tftpb(cmdtp, 0, 3, tftp_argv)) |
669df7e4 RH |
136 | return -ENOENT; |
137 | ||
138 | return 1; | |
139 | } | |
b81fdb04 | 140 | #endif |
669df7e4 RH |
141 | |
142 | static char *fs_argv[5]; | |
143 | ||
0e3f3f8a | 144 | static int do_get_ext2(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr) |
669df7e4 RH |
145 | { |
146 | #ifdef CONFIG_CMD_EXT2 | |
147 | fs_argv[0] = "ext2load"; | |
148 | fs_argv[3] = file_addr; | |
23b7194e | 149 | fs_argv[4] = (void *)file_path; |
669df7e4 | 150 | |
0e3f3f8a | 151 | if (!do_ext2load(cmdtp, 0, 5, fs_argv)) |
669df7e4 RH |
152 | return 1; |
153 | #endif | |
154 | return -ENOENT; | |
155 | } | |
156 | ||
0e3f3f8a | 157 | static int do_get_fat(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr) |
669df7e4 RH |
158 | { |
159 | #ifdef CONFIG_CMD_FAT | |
160 | fs_argv[0] = "fatload"; | |
161 | fs_argv[3] = file_addr; | |
23b7194e | 162 | fs_argv[4] = (void *)file_path; |
669df7e4 | 163 | |
0e3f3f8a | 164 | if (!do_fat_fsload(cmdtp, 0, 5, fs_argv)) |
669df7e4 RH |
165 | return 1; |
166 | #endif | |
167 | return -ENOENT; | |
168 | } | |
169 | ||
6d1a3e5f DG |
170 | static int do_get_any(cmd_tbl_t *cmdtp, const char *file_path, char *file_addr) |
171 | { | |
172 | #ifdef CONFIG_CMD_FS_GENERIC | |
173 | fs_argv[0] = "load"; | |
174 | fs_argv[3] = file_addr; | |
175 | fs_argv[4] = (void *)file_path; | |
176 | ||
177 | if (!do_load(cmdtp, 0, 5, fs_argv, FS_TYPE_ANY)) | |
178 | return 1; | |
179 | #endif | |
180 | return -ENOENT; | |
181 | } | |
182 | ||
06283a64 JH |
183 | /* |
184 | * As in pxelinux, paths to files referenced from files we retrieve are | |
185 | * relative to the location of bootfile. get_relfile takes such a path and | |
186 | * joins it with the bootfile path to get the full path to the target file. If | |
187 | * the bootfile path is NULL, we use file_path as is. | |
188 | * | |
189 | * Returns 1 for success, or < 0 on error. | |
190 | */ | |
4a0bd102 SS |
191 | static int get_relfile(cmd_tbl_t *cmdtp, const char *file_path, |
192 | unsigned long file_addr) | |
06283a64 JH |
193 | { |
194 | size_t path_len; | |
195 | char relfile[MAX_TFTP_PATH_LEN+1]; | |
4a0bd102 | 196 | char addr_buf[18]; |
06283a64 JH |
197 | int err; |
198 | ||
90ba7d7c | 199 | err = get_bootfile_path(file_path, relfile, sizeof(relfile)); |
06283a64 JH |
200 | |
201 | if (err < 0) | |
202 | return err; | |
203 | ||
204 | path_len = strlen(file_path); | |
205 | path_len += strlen(relfile); | |
206 | ||
207 | if (path_len > MAX_TFTP_PATH_LEN) { | |
208 | printf("Base path too long (%s%s)\n", | |
209 | relfile, | |
210 | file_path); | |
211 | ||
212 | return -ENAMETOOLONG; | |
213 | } | |
214 | ||
215 | strcat(relfile, file_path); | |
216 | ||
217 | printf("Retrieving file: %s\n", relfile); | |
218 | ||
4a0bd102 | 219 | sprintf(addr_buf, "%lx", file_addr); |
06283a64 | 220 | |
0e3f3f8a | 221 | return do_getfile(cmdtp, relfile, addr_buf); |
06283a64 JH |
222 | } |
223 | ||
224 | /* | |
225 | * Retrieve the file at 'file_path' to the locate given by 'file_addr'. If | |
226 | * 'bootfile' was specified in the environment, the path to bootfile will be | |
227 | * prepended to 'file_path' and the resulting path will be used. | |
228 | * | |
229 | * Returns 1 on success, or < 0 for error. | |
230 | */ | |
4a0bd102 SS |
231 | static int get_pxe_file(cmd_tbl_t *cmdtp, const char *file_path, |
232 | unsigned long file_addr) | |
06283a64 JH |
233 | { |
234 | unsigned long config_file_size; | |
235 | char *tftp_filesize; | |
236 | int err; | |
4a0bd102 | 237 | char *buf; |
06283a64 | 238 | |
0e3f3f8a | 239 | err = get_relfile(cmdtp, file_path, file_addr); |
06283a64 JH |
240 | |
241 | if (err < 0) | |
242 | return err; | |
243 | ||
244 | /* | |
245 | * the file comes without a NUL byte at the end, so find out its size | |
246 | * and add the NUL byte. | |
247 | */ | |
248 | tftp_filesize = from_env("filesize"); | |
249 | ||
250 | if (!tftp_filesize) | |
251 | return -ENOENT; | |
252 | ||
253 | if (strict_strtoul(tftp_filesize, 16, &config_file_size) < 0) | |
254 | return -EINVAL; | |
255 | ||
4a0bd102 SS |
256 | buf = map_sysmem(file_addr + config_file_size, 1); |
257 | *buf = '\0'; | |
258 | unmap_sysmem(buf); | |
06283a64 JH |
259 | |
260 | return 1; | |
261 | } | |
262 | ||
b81fdb04 SW |
263 | #ifdef CONFIG_CMD_NET |
264 | ||
06283a64 JH |
265 | #define PXELINUX_DIR "pxelinux.cfg/" |
266 | ||
267 | /* | |
268 | * Retrieves a file in the 'pxelinux.cfg' folder. Since this uses get_pxe_file | |
269 | * to do the hard work, the location of the 'pxelinux.cfg' folder is generated | |
270 | * from the bootfile path, as described above. | |
271 | * | |
272 | * Returns 1 on success or < 0 on error. | |
273 | */ | |
4a0bd102 SS |
274 | static int get_pxelinux_path(cmd_tbl_t *cmdtp, const char *file, |
275 | unsigned long pxefile_addr_r) | |
06283a64 JH |
276 | { |
277 | size_t base_len = strlen(PXELINUX_DIR); | |
278 | char path[MAX_TFTP_PATH_LEN+1]; | |
279 | ||
280 | if (base_len + strlen(file) > MAX_TFTP_PATH_LEN) { | |
281 | printf("path (%s%s) too long, skipping\n", | |
282 | PXELINUX_DIR, file); | |
283 | return -ENAMETOOLONG; | |
284 | } | |
285 | ||
286 | sprintf(path, PXELINUX_DIR "%s", file); | |
287 | ||
0e3f3f8a | 288 | return get_pxe_file(cmdtp, path, pxefile_addr_r); |
06283a64 JH |
289 | } |
290 | ||
291 | /* | |
292 | * Looks for a pxe file with a name based on the pxeuuid environment variable. | |
293 | * | |
294 | * Returns 1 on success or < 0 on error. | |
295 | */ | |
4a0bd102 | 296 | static int pxe_uuid_path(cmd_tbl_t *cmdtp, unsigned long pxefile_addr_r) |
06283a64 JH |
297 | { |
298 | char *uuid_str; | |
299 | ||
300 | uuid_str = from_env("pxeuuid"); | |
301 | ||
302 | if (!uuid_str) | |
303 | return -ENOENT; | |
304 | ||
0e3f3f8a | 305 | return get_pxelinux_path(cmdtp, uuid_str, pxefile_addr_r); |
06283a64 JH |
306 | } |
307 | ||
308 | /* | |
309 | * Looks for a pxe file with a name based on the 'ethaddr' environment | |
310 | * variable. | |
311 | * | |
312 | * Returns 1 on success or < 0 on error. | |
313 | */ | |
4a0bd102 | 314 | static int pxe_mac_path(cmd_tbl_t *cmdtp, unsigned long pxefile_addr_r) |
06283a64 JH |
315 | { |
316 | char mac_str[21]; | |
317 | int err; | |
318 | ||
319 | err = format_mac_pxe(mac_str, sizeof(mac_str)); | |
320 | ||
321 | if (err < 0) | |
322 | return err; | |
323 | ||
0e3f3f8a | 324 | return get_pxelinux_path(cmdtp, mac_str, pxefile_addr_r); |
06283a64 JH |
325 | } |
326 | ||
327 | /* | |
328 | * Looks for pxe files with names based on our IP address. See pxelinux | |
329 | * documentation for details on what these file names look like. We match | |
330 | * that exactly. | |
331 | * | |
332 | * Returns 1 on success or < 0 on error. | |
333 | */ | |
4a0bd102 | 334 | static int pxe_ipaddr_paths(cmd_tbl_t *cmdtp, unsigned long pxefile_addr_r) |
06283a64 JH |
335 | { |
336 | char ip_addr[9]; | |
337 | int mask_pos, err; | |
338 | ||
049a95a7 | 339 | sprintf(ip_addr, "%08X", ntohl(net_ip.s_addr)); |
06283a64 JH |
340 | |
341 | for (mask_pos = 7; mask_pos >= 0; mask_pos--) { | |
0e3f3f8a | 342 | err = get_pxelinux_path(cmdtp, ip_addr, pxefile_addr_r); |
06283a64 JH |
343 | |
344 | if (err > 0) | |
345 | return err; | |
346 | ||
347 | ip_addr[mask_pos] = '\0'; | |
348 | } | |
349 | ||
350 | return -ENOENT; | |
351 | } | |
352 | ||
353 | /* | |
354 | * Entry point for the 'pxe get' command. | |
355 | * This Follows pxelinux's rules to download a config file from a tftp server. | |
356 | * The file is stored at the location given by the pxefile_addr_r environment | |
357 | * variable, which must be set. | |
358 | * | |
359 | * UUID comes from pxeuuid env variable, if defined | |
360 | * MAC addr comes from ethaddr env variable, if defined | |
361 | * IP | |
362 | * | |
363 | * see http://syslinux.zytor.com/wiki/index.php/PXELINUX | |
364 | * | |
365 | * Returns 0 on success or 1 on error. | |
366 | */ | |
367 | static int | |
368 | do_pxe_get(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
369 | { | |
370 | char *pxefile_addr_str; | |
834c9384 | 371 | unsigned long pxefile_addr_r; |
39f98553 | 372 | int err, i = 0; |
06283a64 | 373 | |
669df7e4 RH |
374 | do_getfile = do_get_tftp; |
375 | ||
06283a64 | 376 | if (argc != 1) |
4c12eeb8 | 377 | return CMD_RET_USAGE; |
06283a64 | 378 | |
06283a64 JH |
379 | pxefile_addr_str = from_env("pxefile_addr_r"); |
380 | ||
381 | if (!pxefile_addr_str) | |
382 | return 1; | |
383 | ||
384 | err = strict_strtoul(pxefile_addr_str, 16, | |
385 | (unsigned long *)&pxefile_addr_r); | |
386 | if (err < 0) | |
387 | return 1; | |
388 | ||
389 | /* | |
390 | * Keep trying paths until we successfully get a file we're looking | |
391 | * for. | |
392 | */ | |
4a0bd102 SS |
393 | if (pxe_uuid_path(cmdtp, pxefile_addr_r) > 0 || |
394 | pxe_mac_path(cmdtp, pxefile_addr_r) > 0 || | |
395 | pxe_ipaddr_paths(cmdtp, pxefile_addr_r) > 0) { | |
06283a64 JH |
396 | printf("Config file found\n"); |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
39f98553 | 401 | while (pxe_default_paths[i]) { |
0e3f3f8a | 402 | if (get_pxelinux_path(cmdtp, pxe_default_paths[i], |
4a0bd102 | 403 | pxefile_addr_r) > 0) { |
39f98553 RH |
404 | printf("Config file found\n"); |
405 | return 0; | |
406 | } | |
407 | i++; | |
408 | } | |
409 | ||
06283a64 JH |
410 | printf("Config file not found\n"); |
411 | ||
412 | return 1; | |
413 | } | |
b81fdb04 | 414 | #endif |
06283a64 JH |
415 | |
416 | /* | |
417 | * Wrapper to make it easier to store the file at file_path in the location | |
418 | * specified by envaddr_name. file_path will be joined to the bootfile path, | |
419 | * if any is specified. | |
420 | * | |
421 | * Returns 1 on success or < 0 on error. | |
422 | */ | |
0e3f3f8a | 423 | static int get_relfile_envaddr(cmd_tbl_t *cmdtp, const char *file_path, const char *envaddr_name) |
06283a64 | 424 | { |
834c9384 | 425 | unsigned long file_addr; |
06283a64 JH |
426 | char *envaddr; |
427 | ||
428 | envaddr = from_env(envaddr_name); | |
429 | ||
430 | if (!envaddr) | |
431 | return -ENOENT; | |
432 | ||
834c9384 | 433 | if (strict_strtoul(envaddr, 16, &file_addr) < 0) |
06283a64 JH |
434 | return -EINVAL; |
435 | ||
4a0bd102 | 436 | return get_relfile(cmdtp, file_path, file_addr); |
06283a64 JH |
437 | } |
438 | ||
439 | /* | |
440 | * A note on the pxe file parser. | |
441 | * | |
442 | * We're parsing files that use syslinux grammar, which has a few quirks. | |
443 | * String literals must be recognized based on context - there is no | |
444 | * quoting or escaping support. There's also nothing to explicitly indicate | |
445 | * when a label section completes. We deal with that by ending a label | |
446 | * section whenever we see a line that doesn't include. | |
447 | * | |
448 | * As with the syslinux family, this same file format could be reused in the | |
449 | * future for non pxe purposes. The only action it takes during parsing that | |
450 | * would throw this off is handling of include files. It assumes we're using | |
451 | * pxe, and does a tftp download of a file listed as an include file in the | |
452 | * middle of the parsing operation. That could be handled by refactoring it to | |
453 | * take a 'include file getter' function. | |
454 | */ | |
455 | ||
456 | /* | |
457 | * Describes a single label given in a pxe file. | |
458 | * | |
459 | * Create these with the 'label_create' function given below. | |
460 | * | |
461 | * name - the name of the menu as given on the 'menu label' line. | |
462 | * kernel - the path to the kernel file to use for this label. | |
463 | * append - kernel command line to use when booting this label | |
464 | * initrd - path to the initrd to use for this label. | |
465 | * attempted - 0 if we haven't tried to boot this label, 1 if we have. | |
466 | * localboot - 1 if this label specified 'localboot', 0 otherwise. | |
467 | * list - lets these form a list, which a pxe_menu struct will hold. | |
468 | */ | |
469 | struct pxe_label { | |
32d2ffe7 | 470 | char num[4]; |
06283a64 | 471 | char *name; |
7815c4e8 | 472 | char *menu; |
06283a64 | 473 | char *kernel; |
2023000a | 474 | char *config; |
06283a64 JH |
475 | char *append; |
476 | char *initrd; | |
a655938a | 477 | char *fdt; |
c61d94d8 | 478 | char *fdtdir; |
98f64676 | 479 | int ipappend; |
06283a64 JH |
480 | int attempted; |
481 | int localboot; | |
500f304b | 482 | int localboot_val; |
06283a64 JH |
483 | struct list_head list; |
484 | }; | |
485 | ||
486 | /* | |
487 | * Describes a pxe menu as given via pxe files. | |
488 | * | |
489 | * title - the name of the menu as given by a 'menu title' line. | |
490 | * default_label - the name of the default label, if any. | |
491 | * timeout - time in tenths of a second to wait for a user key-press before | |
492 | * booting the default label. | |
493 | * prompt - if 0, don't prompt for a choice unless the timeout period is | |
494 | * interrupted. If 1, always prompt for a choice regardless of | |
495 | * timeout. | |
496 | * labels - a list of labels defined for the menu. | |
497 | */ | |
498 | struct pxe_menu { | |
499 | char *title; | |
500 | char *default_label; | |
501 | int timeout; | |
502 | int prompt; | |
503 | struct list_head labels; | |
504 | }; | |
505 | ||
506 | /* | |
507 | * Allocates memory for and initializes a pxe_label. This uses malloc, so the | |
508 | * result must be free()'d to reclaim the memory. | |
509 | * | |
510 | * Returns NULL if malloc fails. | |
511 | */ | |
512 | static struct pxe_label *label_create(void) | |
513 | { | |
514 | struct pxe_label *label; | |
515 | ||
516 | label = malloc(sizeof(struct pxe_label)); | |
517 | ||
518 | if (!label) | |
519 | return NULL; | |
520 | ||
521 | memset(label, 0, sizeof(struct pxe_label)); | |
522 | ||
523 | return label; | |
524 | } | |
525 | ||
526 | /* | |
527 | * Free the memory used by a pxe_label, including that used by its name, | |
528 | * kernel, append and initrd members, if they're non NULL. | |
529 | * | |
530 | * So - be sure to only use dynamically allocated memory for the members of | |
531 | * the pxe_label struct, unless you want to clean it up first. These are | |
532 | * currently only created by the pxe file parsing code. | |
533 | */ | |
534 | static void label_destroy(struct pxe_label *label) | |
535 | { | |
536 | if (label->name) | |
537 | free(label->name); | |
538 | ||
539 | if (label->kernel) | |
540 | free(label->kernel); | |
541 | ||
2023000a PD |
542 | if (label->config) |
543 | free(label->config); | |
544 | ||
06283a64 JH |
545 | if (label->append) |
546 | free(label->append); | |
547 | ||
548 | if (label->initrd) | |
549 | free(label->initrd); | |
550 | ||
a655938a CK |
551 | if (label->fdt) |
552 | free(label->fdt); | |
553 | ||
c61d94d8 SW |
554 | if (label->fdtdir) |
555 | free(label->fdtdir); | |
556 | ||
06283a64 JH |
557 | free(label); |
558 | } | |
559 | ||
560 | /* | |
561 | * Print a label and its string members if they're defined. | |
562 | * | |
563 | * This is passed as a callback to the menu code for displaying each | |
564 | * menu entry. | |
565 | */ | |
566 | static void label_print(void *data) | |
567 | { | |
568 | struct pxe_label *label = data; | |
32d2ffe7 | 569 | const char *c = label->menu ? label->menu : label->name; |
06283a64 | 570 | |
32d2ffe7 | 571 | printf("%s:\t%s\n", label->num, c); |
06283a64 JH |
572 | } |
573 | ||
574 | /* | |
575 | * Boot a label that specified 'localboot'. This requires that the 'localcmd' | |
a187559e | 576 | * environment variable is defined. Its contents will be executed as U-Boot |
06283a64 JH |
577 | * command. If the label specified an 'append' line, its contents will be |
578 | * used to overwrite the contents of the 'bootargs' environment variable prior | |
579 | * to running 'localcmd'. | |
580 | * | |
581 | * Returns 1 on success or < 0 on error. | |
582 | */ | |
583 | static int label_localboot(struct pxe_label *label) | |
584 | { | |
d51004a8 | 585 | char *localcmd; |
06283a64 JH |
586 | |
587 | localcmd = from_env("localcmd"); | |
588 | ||
589 | if (!localcmd) | |
590 | return -ENOENT; | |
591 | ||
b1ba62d4 HG |
592 | if (label->append) { |
593 | char bootargs[CONFIG_SYS_CBSIZE]; | |
594 | ||
595 | cli_simple_process_macros(label->append, bootargs); | |
382bee57 | 596 | env_set("bootargs", bootargs); |
b1ba62d4 | 597 | } |
06283a64 | 598 | |
d51004a8 | 599 | debug("running: %s\n", localcmd); |
06283a64 | 600 | |
d51004a8 | 601 | return run_command_list(localcmd, strlen(localcmd), 0); |
06283a64 JH |
602 | } |
603 | ||
604 | /* | |
605 | * Boot according to the contents of a pxe_label. | |
606 | * | |
607 | * If we can't boot for any reason, we return. A successful boot never | |
608 | * returns. | |
609 | * | |
610 | * The kernel will be stored in the location given by the 'kernel_addr_r' | |
611 | * environment variable. | |
612 | * | |
613 | * If the label specifies an initrd file, it will be stored in the location | |
614 | * given by the 'ramdisk_addr_r' environment variable. | |
615 | * | |
616 | * If the label specifies an 'append' line, its contents will overwrite that | |
617 | * of the 'bootargs' environment variable. | |
618 | */ | |
d7884e04 | 619 | static int label_boot(cmd_tbl_t *cmdtp, struct pxe_label *label) |
06283a64 JH |
620 | { |
621 | char *bootm_argv[] = { "bootm", NULL, NULL, NULL, NULL }; | |
48ee0a87 | 622 | char initrd_str[28]; |
98f64676 RH |
623 | char mac_str[29] = ""; |
624 | char ip_str[68] = ""; | |
2023000a | 625 | char *fit_addr = NULL; |
f63963f0 | 626 | int bootm_argc = 2; |
98f64676 | 627 | int len = 0; |
1fb7d0e6 BW |
628 | ulong kernel_addr; |
629 | void *buf; | |
06283a64 JH |
630 | |
631 | label_print(label); | |
632 | ||
633 | label->attempted = 1; | |
634 | ||
635 | if (label->localboot) { | |
500f304b RH |
636 | if (label->localboot_val >= 0) |
637 | label_localboot(label); | |
638 | return 0; | |
06283a64 JH |
639 | } |
640 | ||
641 | if (label->kernel == NULL) { | |
642 | printf("No kernel given, skipping %s\n", | |
643 | label->name); | |
500f304b | 644 | return 1; |
06283a64 JH |
645 | } |
646 | ||
647 | if (label->initrd) { | |
0e3f3f8a | 648 | if (get_relfile_envaddr(cmdtp, label->initrd, "ramdisk_addr_r") < 0) { |
06283a64 JH |
649 | printf("Skipping %s for failure retrieving initrd\n", |
650 | label->name); | |
500f304b | 651 | return 1; |
06283a64 JH |
652 | } |
653 | ||
e6b6ccf2 | 654 | bootm_argv[2] = initrd_str; |
48ee0a87 | 655 | strncpy(bootm_argv[2], env_get("ramdisk_addr_r"), 18); |
e6b6ccf2 | 656 | strcat(bootm_argv[2], ":"); |
48ee0a87 | 657 | strncat(bootm_argv[2], env_get("filesize"), 9); |
06283a64 JH |
658 | } |
659 | ||
0e3f3f8a | 660 | if (get_relfile_envaddr(cmdtp, label->kernel, "kernel_addr_r") < 0) { |
06283a64 JH |
661 | printf("Skipping %s for failure retrieving kernel\n", |
662 | label->name); | |
500f304b | 663 | return 1; |
06283a64 JH |
664 | } |
665 | ||
98f64676 RH |
666 | if (label->ipappend & 0x1) { |
667 | sprintf(ip_str, " ip=%s:%s:%s:%s", | |
00caae6d SG |
668 | env_get("ipaddr"), env_get("serverip"), |
669 | env_get("gatewayip"), env_get("netmask")); | |
98f64676 RH |
670 | } |
671 | ||
b81fdb04 | 672 | #ifdef CONFIG_CMD_NET |
98f64676 RH |
673 | if (label->ipappend & 0x2) { |
674 | int err; | |
675 | strcpy(mac_str, " BOOTIF="); | |
676 | err = format_mac_pxe(mac_str + 8, sizeof(mac_str) - 8); | |
677 | if (err < 0) | |
678 | mac_str[0] = '\0'; | |
98f64676 | 679 | } |
b81fdb04 | 680 | #endif |
98f64676 | 681 | |
b1ba62d4 HG |
682 | if ((label->ipappend & 0x3) || label->append) { |
683 | char bootargs[CONFIG_SYS_CBSIZE] = ""; | |
684 | char finalbootargs[CONFIG_SYS_CBSIZE]; | |
98f64676 | 685 | |
64a0c247 IC |
686 | if (strlen(label->append ?: "") + |
687 | strlen(ip_str) + strlen(mac_str) + 1 > sizeof(bootargs)) { | |
688 | printf("bootarg overflow %zd+%zd+%zd+1 > %zd\n", | |
689 | strlen(label->append ?: ""), | |
690 | strlen(ip_str), strlen(mac_str), | |
691 | sizeof(bootargs)); | |
692 | return 1; | |
59ee8f83 TR |
693 | } else { |
694 | if (label->append) | |
695 | strncpy(bootargs, label->append, | |
696 | sizeof(bootargs)); | |
697 | strcat(bootargs, ip_str); | |
698 | strcat(bootargs, mac_str); | |
699 | ||
700 | cli_simple_process_macros(bootargs, finalbootargs); | |
701 | env_set("bootargs", finalbootargs); | |
702 | printf("append: %s\n", finalbootargs); | |
64a0c247 | 703 | } |
32d2ffe7 | 704 | } |
06283a64 | 705 | |
00caae6d | 706 | bootm_argv[1] = env_get("kernel_addr_r"); |
2023000a PD |
707 | /* for FIT, append the configuration identifier */ |
708 | if (label->config) { | |
709 | int len = strlen(bootm_argv[1]) + strlen(label->config) + 1; | |
710 | ||
711 | fit_addr = malloc(len); | |
712 | if (!fit_addr) { | |
713 | printf("malloc fail (FIT address)\n"); | |
714 | return 1; | |
715 | } | |
716 | snprintf(fit_addr, len, "%s%s", bootm_argv[1], label->config); | |
717 | bootm_argv[1] = fit_addr; | |
718 | } | |
06283a64 JH |
719 | |
720 | /* | |
a655938a CK |
721 | * fdt usage is optional: |
722 | * It handles the following scenarios. All scenarios are exclusive | |
723 | * | |
724 | * Scenario 1: If fdt_addr_r specified and "fdt" label is defined in | |
725 | * pxe file, retrieve fdt blob from server. Pass fdt_addr_r to bootm, | |
726 | * and adjust argc appropriately. | |
727 | * | |
728 | * Scenario 2: If there is an fdt_addr specified, pass it along to | |
729 | * bootm, and adjust argc appropriately. | |
730 | * | |
731 | * Scenario 3: fdt blob is not available. | |
06283a64 | 732 | */ |
00caae6d | 733 | bootm_argv[3] = env_get("fdt_addr_r"); |
a655938a CK |
734 | |
735 | /* if fdt label is defined then get fdt from server */ | |
c61d94d8 SW |
736 | if (bootm_argv[3]) { |
737 | char *fdtfile = NULL; | |
738 | char *fdtfilefree = NULL; | |
739 | ||
740 | if (label->fdt) { | |
741 | fdtfile = label->fdt; | |
742 | } else if (label->fdtdir) { | |
e22361af SW |
743 | char *f1, *f2, *f3, *f4, *slash; |
744 | ||
00caae6d | 745 | f1 = env_get("fdtfile"); |
e22361af SW |
746 | if (f1) { |
747 | f2 = ""; | |
748 | f3 = ""; | |
749 | f4 = ""; | |
750 | } else { | |
751 | /* | |
752 | * For complex cases where this code doesn't | |
753 | * generate the correct filename, the board | |
754 | * code should set $fdtfile during early boot, | |
755 | * or the boot scripts should set $fdtfile | |
756 | * before invoking "pxe" or "sysboot". | |
757 | */ | |
00caae6d | 758 | f1 = env_get("soc"); |
e22361af | 759 | f2 = "-"; |
00caae6d | 760 | f3 = env_get("board"); |
e22361af | 761 | f4 = ".dtb"; |
c61d94d8 | 762 | } |
e22361af SW |
763 | |
764 | len = strlen(label->fdtdir); | |
765 | if (!len) | |
766 | slash = "./"; | |
767 | else if (label->fdtdir[len - 1] != '/') | |
768 | slash = "/"; | |
769 | else | |
770 | slash = ""; | |
771 | ||
772 | len = strlen(label->fdtdir) + strlen(slash) + | |
773 | strlen(f1) + strlen(f2) + strlen(f3) + | |
774 | strlen(f4) + 1; | |
775 | fdtfilefree = malloc(len); | |
776 | if (!fdtfilefree) { | |
777 | printf("malloc fail (FDT filename)\n"); | |
2023000a | 778 | goto cleanup; |
e22361af SW |
779 | } |
780 | ||
781 | snprintf(fdtfilefree, len, "%s%s%s%s%s%s", | |
782 | label->fdtdir, slash, f1, f2, f3, f4); | |
783 | fdtfile = fdtfilefree; | |
a655938a | 784 | } |
c61d94d8 SW |
785 | |
786 | if (fdtfile) { | |
787 | int err = get_relfile_envaddr(cmdtp, fdtfile, "fdt_addr_r"); | |
788 | free(fdtfilefree); | |
789 | if (err < 0) { | |
790 | printf("Skipping %s for failure retrieving fdt\n", | |
791 | label->name); | |
2023000a | 792 | goto cleanup; |
c61d94d8 SW |
793 | } |
794 | } else { | |
795 | bootm_argv[3] = NULL; | |
796 | } | |
797 | } | |
798 | ||
799 | if (!bootm_argv[3]) | |
00caae6d | 800 | bootm_argv[3] = env_get("fdt_addr"); |
06283a64 | 801 | |
f63963f0 YS |
802 | if (bootm_argv[3]) { |
803 | if (!bootm_argv[2]) | |
804 | bootm_argv[2] = "-"; | |
06283a64 | 805 | bootm_argc = 4; |
f63963f0 | 806 | } |
06283a64 | 807 | |
1fb7d0e6 BW |
808 | kernel_addr = genimg_get_kernel_addr(bootm_argv[1]); |
809 | buf = map_sysmem(kernel_addr, 0); | |
810 | /* Try bootm for legacy and FIT format image */ | |
811 | if (genimg_get_format(buf) != IMAGE_FORMAT_INVALID) | |
812 | do_bootm(cmdtp, 0, bootm_argc, bootm_argv); | |
8b5c738b SW |
813 | #ifdef CONFIG_CMD_BOOTI |
814 | /* Try booting an AArch64 Linux kernel image */ | |
815 | else | |
816 | do_booti(cmdtp, 0, bootm_argc, bootm_argv); | |
817 | #elif defined(CONFIG_CMD_BOOTZ) | |
818 | /* Try booting a Image */ | |
1fb7d0e6 BW |
819 | else |
820 | do_bootz(cmdtp, 0, bootm_argc, bootm_argv); | |
e6b6ccf2 | 821 | #endif |
4a0bd102 | 822 | unmap_sysmem(buf); |
2023000a PD |
823 | |
824 | cleanup: | |
825 | if (fit_addr) | |
826 | free(fit_addr); | |
500f304b | 827 | return 1; |
06283a64 JH |
828 | } |
829 | ||
830 | /* | |
831 | * Tokens for the pxe file parser. | |
832 | */ | |
833 | enum token_type { | |
834 | T_EOL, | |
835 | T_STRING, | |
836 | T_EOF, | |
837 | T_MENU, | |
838 | T_TITLE, | |
839 | T_TIMEOUT, | |
840 | T_LABEL, | |
841 | T_KERNEL, | |
beb9f6c6 | 842 | T_LINUX, |
06283a64 JH |
843 | T_APPEND, |
844 | T_INITRD, | |
845 | T_LOCALBOOT, | |
846 | T_DEFAULT, | |
847 | T_PROMPT, | |
848 | T_INCLUDE, | |
a655938a | 849 | T_FDT, |
c61d94d8 | 850 | T_FDTDIR, |
8577fec9 | 851 | T_ONTIMEOUT, |
98f64676 | 852 | T_IPAPPEND, |
06283a64 JH |
853 | T_INVALID |
854 | }; | |
855 | ||
856 | /* | |
857 | * A token - given by a value and a type. | |
858 | */ | |
859 | struct token { | |
860 | char *val; | |
861 | enum token_type type; | |
862 | }; | |
863 | ||
864 | /* | |
865 | * Keywords recognized. | |
866 | */ | |
867 | static const struct token keywords[] = { | |
868 | {"menu", T_MENU}, | |
869 | {"title", T_TITLE}, | |
870 | {"timeout", T_TIMEOUT}, | |
871 | {"default", T_DEFAULT}, | |
872 | {"prompt", T_PROMPT}, | |
873 | {"label", T_LABEL}, | |
874 | {"kernel", T_KERNEL}, | |
beb9f6c6 | 875 | {"linux", T_LINUX}, |
06283a64 JH |
876 | {"localboot", T_LOCALBOOT}, |
877 | {"append", T_APPEND}, | |
878 | {"initrd", T_INITRD}, | |
879 | {"include", T_INCLUDE}, | |
f43c401b | 880 | {"devicetree", T_FDT}, |
a655938a | 881 | {"fdt", T_FDT}, |
c61d94d8 SW |
882 | {"devicetreedir", T_FDTDIR}, |
883 | {"fdtdir", T_FDTDIR}, | |
8577fec9 | 884 | {"ontimeout", T_ONTIMEOUT,}, |
98f64676 | 885 | {"ipappend", T_IPAPPEND,}, |
06283a64 JH |
886 | {NULL, T_INVALID} |
887 | }; | |
888 | ||
889 | /* | |
890 | * Since pxe(linux) files don't have a token to identify the start of a | |
891 | * literal, we have to keep track of when we're in a state where a literal is | |
892 | * expected vs when we're in a state a keyword is expected. | |
893 | */ | |
894 | enum lex_state { | |
895 | L_NORMAL = 0, | |
896 | L_KEYWORD, | |
897 | L_SLITERAL | |
898 | }; | |
899 | ||
900 | /* | |
901 | * get_string retrieves a string from *p and stores it as a token in | |
902 | * *t. | |
903 | * | |
904 | * get_string used for scanning both string literals and keywords. | |
905 | * | |
906 | * Characters from *p are copied into t-val until a character equal to | |
907 | * delim is found, or a NUL byte is reached. If delim has the special value of | |
908 | * ' ', any whitespace character will be used as a delimiter. | |
909 | * | |
910 | * If lower is unequal to 0, uppercase characters will be converted to | |
911 | * lowercase in the result. This is useful to make keywords case | |
912 | * insensitive. | |
913 | * | |
914 | * The location of *p is updated to point to the first character after the end | |
915 | * of the token - the ending delimiter. | |
916 | * | |
917 | * On success, the new value of t->val is returned. Memory for t->val is | |
918 | * allocated using malloc and must be free()'d to reclaim it. If insufficient | |
919 | * memory is available, NULL is returned. | |
920 | */ | |
921 | static char *get_string(char **p, struct token *t, char delim, int lower) | |
922 | { | |
923 | char *b, *e; | |
924 | size_t len, i; | |
925 | ||
926 | /* | |
927 | * b and e both start at the beginning of the input stream. | |
928 | * | |
929 | * e is incremented until we find the ending delimiter, or a NUL byte | |
930 | * is reached. Then, we take e - b to find the length of the token. | |
931 | */ | |
932 | b = e = *p; | |
933 | ||
934 | while (*e) { | |
935 | if ((delim == ' ' && isspace(*e)) || delim == *e) | |
936 | break; | |
937 | e++; | |
938 | } | |
939 | ||
940 | len = e - b; | |
941 | ||
942 | /* | |
943 | * Allocate memory to hold the string, and copy it in, converting | |
944 | * characters to lowercase if lower is != 0. | |
945 | */ | |
946 | t->val = malloc(len + 1); | |
947 | if (!t->val) | |
948 | return NULL; | |
949 | ||
950 | for (i = 0; i < len; i++, b++) { | |
951 | if (lower) | |
952 | t->val[i] = tolower(*b); | |
953 | else | |
954 | t->val[i] = *b; | |
955 | } | |
956 | ||
957 | t->val[len] = '\0'; | |
958 | ||
959 | /* | |
960 | * Update *p so the caller knows where to continue scanning. | |
961 | */ | |
962 | *p = e; | |
963 | ||
964 | t->type = T_STRING; | |
965 | ||
966 | return t->val; | |
967 | } | |
968 | ||
969 | /* | |
970 | * Populate a keyword token with a type and value. | |
971 | */ | |
972 | static void get_keyword(struct token *t) | |
973 | { | |
974 | int i; | |
975 | ||
976 | for (i = 0; keywords[i].val; i++) { | |
977 | if (!strcmp(t->val, keywords[i].val)) { | |
978 | t->type = keywords[i].type; | |
979 | break; | |
980 | } | |
981 | } | |
982 | } | |
983 | ||
984 | /* | |
985 | * Get the next token. We have to keep track of which state we're in to know | |
986 | * if we're looking to get a string literal or a keyword. | |
987 | * | |
988 | * *p is updated to point at the first character after the current token. | |
989 | */ | |
990 | static void get_token(char **p, struct token *t, enum lex_state state) | |
991 | { | |
992 | char *c = *p; | |
993 | ||
994 | t->type = T_INVALID; | |
995 | ||
996 | /* eat non EOL whitespace */ | |
997 | while (isblank(*c)) | |
998 | c++; | |
999 | ||
1000 | /* | |
1001 | * eat comments. note that string literals can't begin with #, but | |
1002 | * can contain a # after their first character. | |
1003 | */ | |
1004 | if (*c == '#') { | |
1005 | while (*c && *c != '\n') | |
1006 | c++; | |
1007 | } | |
1008 | ||
1009 | if (*c == '\n') { | |
1010 | t->type = T_EOL; | |
1011 | c++; | |
1012 | } else if (*c == '\0') { | |
1013 | t->type = T_EOF; | |
1014 | c++; | |
1015 | } else if (state == L_SLITERAL) { | |
1016 | get_string(&c, t, '\n', 0); | |
1017 | } else if (state == L_KEYWORD) { | |
1018 | /* | |
1019 | * when we expect a keyword, we first get the next string | |
1020 | * token delimited by whitespace, and then check if it | |
1021 | * matches a keyword in our keyword list. if it does, it's | |
1022 | * converted to a keyword token of the appropriate type, and | |
1023 | * if not, it remains a string token. | |
1024 | */ | |
1025 | get_string(&c, t, ' ', 1); | |
1026 | get_keyword(t); | |
1027 | } | |
1028 | ||
1029 | *p = c; | |
1030 | } | |
1031 | ||
1032 | /* | |
1033 | * Increment *c until we get to the end of the current line, or EOF. | |
1034 | */ | |
1035 | static void eol_or_eof(char **c) | |
1036 | { | |
1037 | while (**c && **c != '\n') | |
1038 | (*c)++; | |
1039 | } | |
1040 | ||
1041 | /* | |
1042 | * All of these parse_* functions share some common behavior. | |
1043 | * | |
1044 | * They finish with *c pointing after the token they parse, and return 1 on | |
1045 | * success, or < 0 on error. | |
1046 | */ | |
1047 | ||
1048 | /* | |
1049 | * Parse a string literal and store a pointer it at *dst. String literals | |
1050 | * terminate at the end of the line. | |
1051 | */ | |
1052 | static int parse_sliteral(char **c, char **dst) | |
1053 | { | |
1054 | struct token t; | |
1055 | char *s = *c; | |
1056 | ||
1057 | get_token(c, &t, L_SLITERAL); | |
1058 | ||
1059 | if (t.type != T_STRING) { | |
1060 | printf("Expected string literal: %.*s\n", (int)(*c - s), s); | |
1061 | return -EINVAL; | |
1062 | } | |
1063 | ||
1064 | *dst = t.val; | |
1065 | ||
1066 | return 1; | |
1067 | } | |
1068 | ||
1069 | /* | |
1070 | * Parse a base 10 (unsigned) integer and store it at *dst. | |
1071 | */ | |
1072 | static int parse_integer(char **c, int *dst) | |
1073 | { | |
1074 | struct token t; | |
1075 | char *s = *c; | |
06283a64 JH |
1076 | |
1077 | get_token(c, &t, L_SLITERAL); | |
1078 | ||
1079 | if (t.type != T_STRING) { | |
1080 | printf("Expected string: %.*s\n", (int)(*c - s), s); | |
1081 | return -EINVAL; | |
1082 | } | |
1083 | ||
500f304b | 1084 | *dst = simple_strtol(t.val, NULL, 10); |
06283a64 JH |
1085 | |
1086 | free(t.val); | |
1087 | ||
1088 | return 1; | |
1089 | } | |
1090 | ||
4a0bd102 SS |
1091 | static int parse_pxefile_top(cmd_tbl_t *cmdtp, char *p, unsigned long base, |
1092 | struct pxe_menu *cfg, int nest_level); | |
06283a64 JH |
1093 | |
1094 | /* | |
1095 | * Parse an include statement, and retrieve and parse the file it mentions. | |
1096 | * | |
1097 | * base should point to a location where it's safe to store the file, and | |
1098 | * nest_level should indicate how many nested includes have occurred. For this | |
1099 | * include, nest_level has already been incremented and doesn't need to be | |
1100 | * incremented here. | |
1101 | */ | |
4a0bd102 | 1102 | static int handle_include(cmd_tbl_t *cmdtp, char **c, unsigned long base, |
06283a64 JH |
1103 | struct pxe_menu *cfg, int nest_level) |
1104 | { | |
1105 | char *include_path; | |
1106 | char *s = *c; | |
1107 | int err; | |
4a0bd102 SS |
1108 | char *buf; |
1109 | int ret; | |
06283a64 JH |
1110 | |
1111 | err = parse_sliteral(c, &include_path); | |
1112 | ||
1113 | if (err < 0) { | |
1114 | printf("Expected include path: %.*s\n", | |
1115 | (int)(*c - s), s); | |
1116 | return err; | |
1117 | } | |
1118 | ||
0e3f3f8a | 1119 | err = get_pxe_file(cmdtp, include_path, base); |
06283a64 JH |
1120 | |
1121 | if (err < 0) { | |
1122 | printf("Couldn't retrieve %s\n", include_path); | |
1123 | return err; | |
1124 | } | |
1125 | ||
4a0bd102 SS |
1126 | buf = map_sysmem(base, 0); |
1127 | ret = parse_pxefile_top(cmdtp, buf, base, cfg, nest_level); | |
1128 | unmap_sysmem(buf); | |
1129 | ||
1130 | return ret; | |
06283a64 JH |
1131 | } |
1132 | ||
1133 | /* | |
1134 | * Parse lines that begin with 'menu'. | |
1135 | * | |
4a0bd102 | 1136 | * base and nest are provided to handle the 'menu include' case. |
06283a64 | 1137 | * |
4a0bd102 | 1138 | * base should point to a location where it's safe to store the included file. |
06283a64 JH |
1139 | * |
1140 | * nest_level should be 1 when parsing the top level pxe file, 2 when parsing | |
1141 | * a file it includes, 3 when parsing a file included by that file, and so on. | |
1142 | */ | |
4a0bd102 SS |
1143 | static int parse_menu(cmd_tbl_t *cmdtp, char **c, struct pxe_menu *cfg, |
1144 | unsigned long base, int nest_level) | |
06283a64 JH |
1145 | { |
1146 | struct token t; | |
1147 | char *s = *c; | |
43d4a5e6 | 1148 | int err = 0; |
06283a64 JH |
1149 | |
1150 | get_token(c, &t, L_KEYWORD); | |
1151 | ||
1152 | switch (t.type) { | |
1153 | case T_TITLE: | |
1154 | err = parse_sliteral(c, &cfg->title); | |
1155 | ||
1156 | break; | |
1157 | ||
1158 | case T_INCLUDE: | |
4a0bd102 | 1159 | err = handle_include(cmdtp, c, base, cfg, |
06283a64 JH |
1160 | nest_level + 1); |
1161 | break; | |
1162 | ||
1163 | default: | |
1164 | printf("Ignoring malformed menu command: %.*s\n", | |
1165 | (int)(*c - s), s); | |
1166 | } | |
1167 | ||
1168 | if (err < 0) | |
1169 | return err; | |
1170 | ||
1171 | eol_or_eof(c); | |
1172 | ||
1173 | return 1; | |
1174 | } | |
1175 | ||
1176 | /* | |
1177 | * Handles parsing a 'menu line' when we're parsing a label. | |
1178 | */ | |
1179 | static int parse_label_menu(char **c, struct pxe_menu *cfg, | |
1180 | struct pxe_label *label) | |
1181 | { | |
1182 | struct token t; | |
1183 | char *s; | |
1184 | ||
1185 | s = *c; | |
1186 | ||
1187 | get_token(c, &t, L_KEYWORD); | |
1188 | ||
1189 | switch (t.type) { | |
1190 | case T_DEFAULT: | |
8577fec9 RH |
1191 | if (!cfg->default_label) |
1192 | cfg->default_label = strdup(label->name); | |
06283a64 JH |
1193 | |
1194 | if (!cfg->default_label) | |
1195 | return -ENOMEM; | |
1196 | ||
7815c4e8 RH |
1197 | break; |
1198 | case T_LABEL: | |
1199 | parse_sliteral(c, &label->menu); | |
06283a64 JH |
1200 | break; |
1201 | default: | |
1202 | printf("Ignoring malformed menu command: %.*s\n", | |
1203 | (int)(*c - s), s); | |
1204 | } | |
1205 | ||
1206 | eol_or_eof(c); | |
1207 | ||
1208 | return 0; | |
1209 | } | |
1210 | ||
2023000a PD |
1211 | /* |
1212 | * Handles parsing a 'kernel' label. | |
1213 | * expecting "filename" or "<fit_filename>#cfg" | |
1214 | */ | |
1215 | static int parse_label_kernel(char **c, struct pxe_label *label) | |
1216 | { | |
1217 | char *s; | |
1218 | int err; | |
1219 | ||
1220 | err = parse_sliteral(c, &label->kernel); | |
1221 | if (err < 0) | |
1222 | return err; | |
1223 | ||
1224 | s = strstr(label->kernel, "#"); | |
1225 | if (!s) | |
1226 | return 1; | |
1227 | ||
1228 | label->config = malloc(strlen(s) + 1); | |
1229 | if (!label->config) | |
1230 | return -ENOMEM; | |
1231 | ||
1232 | strcpy(label->config, s); | |
1233 | *s = 0; | |
1234 | ||
1235 | return 1; | |
1236 | } | |
1237 | ||
06283a64 JH |
1238 | /* |
1239 | * Parses a label and adds it to the list of labels for a menu. | |
1240 | * | |
1241 | * A label ends when we either get to the end of a file, or | |
1242 | * get some input we otherwise don't have a handler defined | |
1243 | * for. | |
1244 | * | |
1245 | */ | |
1246 | static int parse_label(char **c, struct pxe_menu *cfg) | |
1247 | { | |
1248 | struct token t; | |
34bd23e4 | 1249 | int len; |
06283a64 JH |
1250 | char *s = *c; |
1251 | struct pxe_label *label; | |
1252 | int err; | |
1253 | ||
1254 | label = label_create(); | |
1255 | if (!label) | |
1256 | return -ENOMEM; | |
1257 | ||
1258 | err = parse_sliteral(c, &label->name); | |
1259 | if (err < 0) { | |
1260 | printf("Expected label name: %.*s\n", (int)(*c - s), s); | |
1261 | label_destroy(label); | |
1262 | return -EINVAL; | |
1263 | } | |
1264 | ||
1265 | list_add_tail(&label->list, &cfg->labels); | |
1266 | ||
1267 | while (1) { | |
1268 | s = *c; | |
1269 | get_token(c, &t, L_KEYWORD); | |
1270 | ||
1271 | err = 0; | |
1272 | switch (t.type) { | |
1273 | case T_MENU: | |
1274 | err = parse_label_menu(c, cfg, label); | |
1275 | break; | |
1276 | ||
1277 | case T_KERNEL: | |
beb9f6c6 | 1278 | case T_LINUX: |
2023000a | 1279 | err = parse_label_kernel(c, label); |
06283a64 JH |
1280 | break; |
1281 | ||
1282 | case T_APPEND: | |
1283 | err = parse_sliteral(c, &label->append); | |
34bd23e4 RH |
1284 | if (label->initrd) |
1285 | break; | |
1286 | s = strstr(label->append, "initrd="); | |
1287 | if (!s) | |
1288 | break; | |
1289 | s += 7; | |
1290 | len = (int)(strchr(s, ' ') - s); | |
1291 | label->initrd = malloc(len + 1); | |
1292 | strncpy(label->initrd, s, len); | |
1293 | label->initrd[len] = '\0'; | |
1294 | ||
06283a64 JH |
1295 | break; |
1296 | ||
1297 | case T_INITRD: | |
34bd23e4 RH |
1298 | if (!label->initrd) |
1299 | err = parse_sliteral(c, &label->initrd); | |
06283a64 JH |
1300 | break; |
1301 | ||
a655938a CK |
1302 | case T_FDT: |
1303 | if (!label->fdt) | |
1304 | err = parse_sliteral(c, &label->fdt); | |
1305 | break; | |
1306 | ||
c61d94d8 SW |
1307 | case T_FDTDIR: |
1308 | if (!label->fdtdir) | |
1309 | err = parse_sliteral(c, &label->fdtdir); | |
1310 | break; | |
1311 | ||
06283a64 | 1312 | case T_LOCALBOOT: |
500f304b RH |
1313 | label->localboot = 1; |
1314 | err = parse_integer(c, &label->localboot_val); | |
06283a64 JH |
1315 | break; |
1316 | ||
98f64676 RH |
1317 | case T_IPAPPEND: |
1318 | err = parse_integer(c, &label->ipappend); | |
1319 | break; | |
1320 | ||
06283a64 JH |
1321 | case T_EOL: |
1322 | break; | |
1323 | ||
1324 | default: | |
1325 | /* | |
1326 | * put the token back! we don't want it - it's the end | |
1327 | * of a label and whatever token this is, it's | |
1328 | * something for the menu level context to handle. | |
1329 | */ | |
1330 | *c = s; | |
1331 | return 1; | |
1332 | } | |
1333 | ||
1334 | if (err < 0) | |
1335 | return err; | |
1336 | } | |
1337 | } | |
1338 | ||
1339 | /* | |
1340 | * This 16 comes from the limit pxelinux imposes on nested includes. | |
1341 | * | |
1342 | * There is no reason at all we couldn't do more, but some limit helps prevent | |
1343 | * infinite (until crash occurs) recursion if a file tries to include itself. | |
1344 | */ | |
1345 | #define MAX_NEST_LEVEL 16 | |
1346 | ||
1347 | /* | |
1348 | * Entry point for parsing a menu file. nest_level indicates how many times | |
1349 | * we've nested in includes. It will be 1 for the top level menu file. | |
1350 | * | |
1351 | * Returns 1 on success, < 0 on error. | |
1352 | */ | |
4a0bd102 SS |
1353 | static int parse_pxefile_top(cmd_tbl_t *cmdtp, char *p, unsigned long base, |
1354 | struct pxe_menu *cfg, int nest_level) | |
06283a64 JH |
1355 | { |
1356 | struct token t; | |
1357 | char *s, *b, *label_name; | |
1358 | int err; | |
1359 | ||
1360 | b = p; | |
1361 | ||
1362 | if (nest_level > MAX_NEST_LEVEL) { | |
1363 | printf("Maximum nesting (%d) exceeded\n", MAX_NEST_LEVEL); | |
1364 | return -EMLINK; | |
1365 | } | |
1366 | ||
1367 | while (1) { | |
1368 | s = p; | |
1369 | ||
1370 | get_token(&p, &t, L_KEYWORD); | |
1371 | ||
1372 | err = 0; | |
1373 | switch (t.type) { | |
1374 | case T_MENU: | |
e82eeb57 | 1375 | cfg->prompt = 1; |
4a0bd102 SS |
1376 | err = parse_menu(cmdtp, &p, cfg, |
1377 | base + ALIGN(strlen(b) + 1, 4), | |
1378 | nest_level); | |
06283a64 JH |
1379 | break; |
1380 | ||
1381 | case T_TIMEOUT: | |
1382 | err = parse_integer(&p, &cfg->timeout); | |
1383 | break; | |
1384 | ||
1385 | case T_LABEL: | |
1386 | err = parse_label(&p, cfg); | |
1387 | break; | |
1388 | ||
1389 | case T_DEFAULT: | |
8577fec9 | 1390 | case T_ONTIMEOUT: |
06283a64 JH |
1391 | err = parse_sliteral(&p, &label_name); |
1392 | ||
1393 | if (label_name) { | |
1394 | if (cfg->default_label) | |
1395 | free(cfg->default_label); | |
1396 | ||
1397 | cfg->default_label = label_name; | |
1398 | } | |
1399 | ||
1400 | break; | |
1401 | ||
1e085226 | 1402 | case T_INCLUDE: |
4a0bd102 SS |
1403 | err = handle_include(cmdtp, &p, |
1404 | base + ALIGN(strlen(b), 4), cfg, | |
1405 | nest_level + 1); | |
1e085226 RH |
1406 | break; |
1407 | ||
06283a64 | 1408 | case T_PROMPT: |
e82eeb57 | 1409 | eol_or_eof(&p); |
06283a64 JH |
1410 | break; |
1411 | ||
1412 | case T_EOL: | |
1413 | break; | |
1414 | ||
1415 | case T_EOF: | |
1416 | return 1; | |
1417 | ||
1418 | default: | |
1419 | printf("Ignoring unknown command: %.*s\n", | |
1420 | (int)(p - s), s); | |
1421 | eol_or_eof(&p); | |
1422 | } | |
1423 | ||
1424 | if (err < 0) | |
1425 | return err; | |
1426 | } | |
1427 | } | |
1428 | ||
1429 | /* | |
1430 | * Free the memory used by a pxe_menu and its labels. | |
1431 | */ | |
1432 | static void destroy_pxe_menu(struct pxe_menu *cfg) | |
1433 | { | |
1434 | struct list_head *pos, *n; | |
1435 | struct pxe_label *label; | |
1436 | ||
1437 | if (cfg->title) | |
1438 | free(cfg->title); | |
1439 | ||
1440 | if (cfg->default_label) | |
1441 | free(cfg->default_label); | |
1442 | ||
1443 | list_for_each_safe(pos, n, &cfg->labels) { | |
1444 | label = list_entry(pos, struct pxe_label, list); | |
1445 | ||
1446 | label_destroy(label); | |
1447 | } | |
1448 | ||
1449 | free(cfg); | |
1450 | } | |
1451 | ||
1452 | /* | |
1453 | * Entry point for parsing a pxe file. This is only used for the top level | |
1454 | * file. | |
1455 | * | |
1456 | * Returns NULL if there is an error, otherwise, returns a pointer to a | |
1457 | * pxe_menu struct populated with the results of parsing the pxe file (and any | |
1458 | * files it includes). The resulting pxe_menu struct can be free()'d by using | |
1459 | * the destroy_pxe_menu() function. | |
1460 | */ | |
4a0bd102 | 1461 | static struct pxe_menu *parse_pxefile(cmd_tbl_t *cmdtp, unsigned long menucfg) |
06283a64 JH |
1462 | { |
1463 | struct pxe_menu *cfg; | |
4a0bd102 SS |
1464 | char *buf; |
1465 | int r; | |
06283a64 JH |
1466 | |
1467 | cfg = malloc(sizeof(struct pxe_menu)); | |
1468 | ||
1469 | if (!cfg) | |
1470 | return NULL; | |
1471 | ||
1472 | memset(cfg, 0, sizeof(struct pxe_menu)); | |
1473 | ||
1474 | INIT_LIST_HEAD(&cfg->labels); | |
1475 | ||
4a0bd102 SS |
1476 | buf = map_sysmem(menucfg, 0); |
1477 | r = parse_pxefile_top(cmdtp, buf, menucfg, cfg, 1); | |
1478 | unmap_sysmem(buf); | |
1479 | ||
1480 | if (r < 0) { | |
06283a64 JH |
1481 | destroy_pxe_menu(cfg); |
1482 | return NULL; | |
1483 | } | |
1484 | ||
1485 | return cfg; | |
1486 | } | |
1487 | ||
1488 | /* | |
a187559e | 1489 | * Converts a pxe_menu struct into a menu struct for use with U-Boot's generic |
06283a64 JH |
1490 | * menu code. |
1491 | */ | |
1492 | static struct menu *pxe_menu_to_menu(struct pxe_menu *cfg) | |
1493 | { | |
1494 | struct pxe_label *label; | |
1495 | struct list_head *pos; | |
1496 | struct menu *m; | |
1497 | int err; | |
32d2ffe7 RH |
1498 | int i = 1; |
1499 | char *default_num = NULL; | |
06283a64 JH |
1500 | |
1501 | /* | |
1502 | * Create a menu and add items for all the labels. | |
1503 | */ | |
86fbad24 MY |
1504 | m = menu_create(cfg->title, DIV_ROUND_UP(cfg->timeout, 10), |
1505 | cfg->prompt, label_print, NULL, NULL); | |
06283a64 JH |
1506 | |
1507 | if (!m) | |
1508 | return NULL; | |
1509 | ||
1510 | list_for_each(pos, &cfg->labels) { | |
1511 | label = list_entry(pos, struct pxe_label, list); | |
1512 | ||
32d2ffe7 RH |
1513 | sprintf(label->num, "%d", i++); |
1514 | if (menu_item_add(m, label->num, label) != 1) { | |
06283a64 JH |
1515 | menu_destroy(m); |
1516 | return NULL; | |
1517 | } | |
32d2ffe7 | 1518 | if (cfg->default_label && |
8577fec9 | 1519 | (strcmp(label->name, cfg->default_label) == 0)) |
32d2ffe7 RH |
1520 | default_num = label->num; |
1521 | ||
06283a64 JH |
1522 | } |
1523 | ||
1524 | /* | |
1525 | * After we've created items for each label in the menu, set the | |
1526 | * menu's default label if one was specified. | |
1527 | */ | |
32d2ffe7 RH |
1528 | if (default_num) { |
1529 | err = menu_default_set(m, default_num); | |
06283a64 JH |
1530 | if (err != 1) { |
1531 | if (err != -ENOENT) { | |
1532 | menu_destroy(m); | |
1533 | return NULL; | |
1534 | } | |
1535 | ||
1536 | printf("Missing default: %s\n", cfg->default_label); | |
1537 | } | |
1538 | } | |
1539 | ||
1540 | return m; | |
1541 | } | |
1542 | ||
1543 | /* | |
1544 | * Try to boot any labels we have yet to attempt to boot. | |
1545 | */ | |
d7884e04 | 1546 | static void boot_unattempted_labels(cmd_tbl_t *cmdtp, struct pxe_menu *cfg) |
06283a64 JH |
1547 | { |
1548 | struct list_head *pos; | |
1549 | struct pxe_label *label; | |
1550 | ||
1551 | list_for_each(pos, &cfg->labels) { | |
1552 | label = list_entry(pos, struct pxe_label, list); | |
1553 | ||
1554 | if (!label->attempted) | |
d7884e04 | 1555 | label_boot(cmdtp, label); |
06283a64 JH |
1556 | } |
1557 | } | |
1558 | ||
1559 | /* | |
1560 | * Boot the system as prescribed by a pxe_menu. | |
1561 | * | |
1562 | * Use the menu system to either get the user's choice or the default, based | |
1563 | * on config or user input. If there is no default or user's choice, | |
1564 | * attempted to boot labels in the order they were given in pxe files. | |
1565 | * If the default or user's choice fails to boot, attempt to boot other | |
1566 | * labels in the order they were given in pxe files. | |
1567 | * | |
1568 | * If this function returns, there weren't any labels that successfully | |
1569 | * booted, or the user interrupted the menu selection via ctrl+c. | |
1570 | */ | |
d7884e04 | 1571 | static void handle_pxe_menu(cmd_tbl_t *cmdtp, struct pxe_menu *cfg) |
06283a64 JH |
1572 | { |
1573 | void *choice; | |
1574 | struct menu *m; | |
1575 | int err; | |
1576 | ||
1577 | m = pxe_menu_to_menu(cfg); | |
1578 | if (!m) | |
1579 | return; | |
1580 | ||
1581 | err = menu_get_choice(m, &choice); | |
1582 | ||
1583 | menu_destroy(m); | |
1584 | ||
6f40f274 JH |
1585 | /* |
1586 | * err == 1 means we got a choice back from menu_get_choice. | |
1587 | * | |
1588 | * err == -ENOENT if the menu was setup to select the default but no | |
1589 | * default was set. in that case, we should continue trying to boot | |
1590 | * labels that haven't been attempted yet. | |
1591 | * | |
1592 | * otherwise, the user interrupted or there was some other error and | |
1593 | * we give up. | |
1594 | */ | |
06283a64 | 1595 | |
500f304b | 1596 | if (err == 1) { |
d7884e04 | 1597 | err = label_boot(cmdtp, choice); |
500f304b RH |
1598 | if (!err) |
1599 | return; | |
1600 | } else if (err != -ENOENT) { | |
6f40f274 | 1601 | return; |
500f304b | 1602 | } |
06283a64 | 1603 | |
d7884e04 | 1604 | boot_unattempted_labels(cmdtp, cfg); |
06283a64 JH |
1605 | } |
1606 | ||
b81fdb04 | 1607 | #ifdef CONFIG_CMD_NET |
06283a64 JH |
1608 | /* |
1609 | * Boots a system using a pxe file | |
1610 | * | |
1611 | * Returns 0 on success, 1 on error. | |
1612 | */ | |
1613 | static int | |
1614 | do_pxe_boot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) | |
1615 | { | |
1616 | unsigned long pxefile_addr_r; | |
1617 | struct pxe_menu *cfg; | |
1618 | char *pxefile_addr_str; | |
1619 | ||
669df7e4 RH |
1620 | do_getfile = do_get_tftp; |
1621 | ||
06283a64 JH |
1622 | if (argc == 1) { |
1623 | pxefile_addr_str = from_env("pxefile_addr_r"); | |
1624 | if (!pxefile_addr_str) | |
1625 | return 1; | |
1626 | ||
1627 | } else if (argc == 2) { | |
1628 | pxefile_addr_str = argv[1]; | |
1629 | } else { | |
4c12eeb8 | 1630 | return CMD_RET_USAGE; |
06283a64 JH |
1631 | } |
1632 | ||
1633 | if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) { | |
1634 | printf("Invalid pxefile address: %s\n", pxefile_addr_str); | |
1635 | return 1; | |
1636 | } | |
1637 | ||
4a0bd102 | 1638 | cfg = parse_pxefile(cmdtp, pxefile_addr_r); |
06283a64 JH |
1639 | |
1640 | if (cfg == NULL) { | |
1641 | printf("Error parsing config file\n"); | |
1642 | return 1; | |
1643 | } | |
1644 | ||
d7884e04 | 1645 | handle_pxe_menu(cmdtp, cfg); |
06283a64 JH |
1646 | |
1647 | destroy_pxe_menu(cfg); | |
1648 | ||
1411157d | 1649 | copy_filename(net_boot_file_name, "", sizeof(net_boot_file_name)); |
ded2e20e | 1650 | |
06283a64 JH |
1651 | return 0; |
1652 | } | |
1653 | ||
1654 | static cmd_tbl_t cmd_pxe_sub[] = { | |
1655 | U_BOOT_CMD_MKENT(get, 1, 1, do_pxe_get, "", ""), | |
1656 | U_BOOT_CMD_MKENT(boot, 2, 1, do_pxe_boot, "", "") | |
1657 | }; | |
1658 | ||
0e350f81 | 1659 | static int do_pxe(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
06283a64 JH |
1660 | { |
1661 | cmd_tbl_t *cp; | |
1662 | ||
1663 | if (argc < 2) | |
4c12eeb8 | 1664 | return CMD_RET_USAGE; |
06283a64 | 1665 | |
e5a9a407 RH |
1666 | is_pxe = true; |
1667 | ||
06283a64 JH |
1668 | /* drop initial "pxe" arg */ |
1669 | argc--; | |
1670 | argv++; | |
1671 | ||
1672 | cp = find_cmd_tbl(argv[0], cmd_pxe_sub, ARRAY_SIZE(cmd_pxe_sub)); | |
1673 | ||
1674 | if (cp) | |
1675 | return cp->cmd(cmdtp, flag, argc, argv); | |
1676 | ||
4c12eeb8 | 1677 | return CMD_RET_USAGE; |
06283a64 JH |
1678 | } |
1679 | ||
1680 | U_BOOT_CMD( | |
1681 | pxe, 3, 1, do_pxe, | |
1682 | "commands to get and boot from pxe files", | |
1683 | "get - try to retrieve a pxe file using tftp\npxe " | |
1684 | "boot [pxefile_addr_r] - boot from the pxe file at pxefile_addr_r\n" | |
1685 | ); | |
b81fdb04 | 1686 | #endif |
669df7e4 RH |
1687 | |
1688 | /* | |
1689 | * Boots a system using a local disk syslinux/extlinux file | |
1690 | * | |
1691 | * Returns 0 on success, 1 on error. | |
1692 | */ | |
0e350f81 | 1693 | static int do_sysboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
669df7e4 RH |
1694 | { |
1695 | unsigned long pxefile_addr_r; | |
1696 | struct pxe_menu *cfg; | |
1697 | char *pxefile_addr_str; | |
1698 | char *filename; | |
1699 | int prompt = 0; | |
1700 | ||
e5a9a407 RH |
1701 | is_pxe = false; |
1702 | ||
0ece6b50 | 1703 | if (argc > 1 && strstr(argv[1], "-p")) { |
669df7e4 RH |
1704 | prompt = 1; |
1705 | argc--; | |
1706 | argv++; | |
1707 | } | |
1708 | ||
1709 | if (argc < 4) | |
1710 | return cmd_usage(cmdtp); | |
1711 | ||
1712 | if (argc < 5) { | |
1713 | pxefile_addr_str = from_env("pxefile_addr_r"); | |
1714 | if (!pxefile_addr_str) | |
1715 | return 1; | |
1716 | } else { | |
1717 | pxefile_addr_str = argv[4]; | |
1718 | } | |
1719 | ||
1720 | if (argc < 6) | |
00caae6d | 1721 | filename = env_get("bootfile"); |
669df7e4 RH |
1722 | else { |
1723 | filename = argv[5]; | |
382bee57 | 1724 | env_set("bootfile", filename); |
669df7e4 RH |
1725 | } |
1726 | ||
1727 | if (strstr(argv[3], "ext2")) | |
1728 | do_getfile = do_get_ext2; | |
1729 | else if (strstr(argv[3], "fat")) | |
1730 | do_getfile = do_get_fat; | |
6d1a3e5f DG |
1731 | else if (strstr(argv[3], "any")) |
1732 | do_getfile = do_get_any; | |
669df7e4 RH |
1733 | else { |
1734 | printf("Invalid filesystem: %s\n", argv[3]); | |
1735 | return 1; | |
1736 | } | |
1737 | fs_argv[1] = argv[1]; | |
1738 | fs_argv[2] = argv[2]; | |
1739 | ||
1740 | if (strict_strtoul(pxefile_addr_str, 16, &pxefile_addr_r) < 0) { | |
1741 | printf("Invalid pxefile address: %s\n", pxefile_addr_str); | |
1742 | return 1; | |
1743 | } | |
1744 | ||
4a0bd102 | 1745 | if (get_pxe_file(cmdtp, filename, pxefile_addr_r) < 0) { |
669df7e4 RH |
1746 | printf("Error reading config file\n"); |
1747 | return 1; | |
1748 | } | |
1749 | ||
4a0bd102 | 1750 | cfg = parse_pxefile(cmdtp, pxefile_addr_r); |
669df7e4 RH |
1751 | |
1752 | if (cfg == NULL) { | |
1753 | printf("Error parsing config file\n"); | |
1754 | return 1; | |
1755 | } | |
1756 | ||
1757 | if (prompt) | |
1758 | cfg->prompt = 1; | |
1759 | ||
d7884e04 | 1760 | handle_pxe_menu(cmdtp, cfg); |
669df7e4 RH |
1761 | |
1762 | destroy_pxe_menu(cfg); | |
1763 | ||
1764 | return 0; | |
1765 | } | |
1766 | ||
1767 | U_BOOT_CMD( | |
1768 | sysboot, 7, 1, do_sysboot, | |
1769 | "command to get and boot from syslinux files", | |
6d1a3e5f DG |
1770 | "[-p] <interface> <dev[:part]> <ext2|fat|any> [addr] [filename]\n" |
1771 | " - load and parse syslinux menu file 'filename' from ext2, fat\n" | |
1772 | " or any filesystem on 'dev' on 'interface' to address 'addr'" | |
669df7e4 | 1773 | ); |