1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
// SPDX-License-Identifier: GPL-2.0+
/* Copyright (C) 2024-2025 Linaro Ltd. */
#include <command.h>
#include <env.h>
#include <image.h>
#include <net.h>
#include <lwip/altcp_tls.h>
U_BOOT_CMD(wget, 4, 1, do_wget,
"boot image via network using HTTP/HTTPS protocol"
#if defined(CONFIG_WGET_CACERT)
"\nwget cacert - configure wget root certificates"
#endif
,
"[loadAddress] url\n"
"wget [loadAddress] [host:]path\n"
" - load file"
#if defined(CONFIG_WGET_CACERT)
"\nwget cacert <address> <length>\n"
" - provide CA certificates (0 0 to remove current)"
"\nwget cacert none|optional|required\n"
" - set server certificate verification mode (default: optional)"
#if defined(CONFIG_WGET_BUILTIN_CACERT)
"\nwget cacert builtin\n"
" - use the builtin CA certificates"
#endif
#endif
);
#if CONFIG_IS_ENABLED(WGET_CACERT) || CONFIG_IS_ENABLED(WGET_BUILTIN_CACERT)
char *cacert;
size_t cacert_size;
enum auth_mode cacert_auth_mode = AUTH_OPTIONAL;
#if CONFIG_IS_ENABLED(WGET_BUILTIN_CACERT)
extern const char builtin_cacert[];
extern const size_t builtin_cacert_size;
bool cacert_initialized;
#endif
static int _set_cacert(const void *addr, size_t sz)
{
mbedtls_x509_crt crt;
void *p;
int ret;
if (cacert)
free(cacert);
if (!addr) {
cacert = NULL;
cacert_size = 0;
return CMD_RET_SUCCESS;
}
p = malloc(sz);
if (!p)
return CMD_RET_FAILURE;
cacert = p;
cacert_size = sz;
memcpy(cacert, (void *)addr, sz);
mbedtls_x509_crt_init(&crt);
ret = mbedtls_x509_crt_parse(&crt, cacert, cacert_size);
if (ret) {
if (!wget_info->silent)
printf("Could not parse certificates (%d)\n", ret);
free(cacert);
cacert = NULL;
cacert_size = 0;
return CMD_RET_FAILURE;
}
#if CONFIG_IS_ENABLED(WGET_BUILTIN_CACERT)
cacert_initialized = true;
#endif
return CMD_RET_SUCCESS;
}
#if CONFIG_IS_ENABLED(WGET_BUILTIN_CACERT)
int set_cacert_builtin(void)
{
cacert_auth_mode = AUTH_REQUIRED;
return _set_cacert(builtin_cacert, builtin_cacert_size);
}
#endif
#endif /* CONFIG_WGET_CACERT || CONFIG_WGET_BUILTIN_CACERT */
#if CONFIG_IS_ENABLED(WGET_CACERT)
static int set_auth(enum auth_mode auth)
{
cacert_auth_mode = auth;
return CMD_RET_SUCCESS;
}
static int set_cacert(char * const saddr, char * const ssz)
{
ulong addr, sz;
addr = hextoul(saddr, NULL);
sz = hextoul(ssz, NULL);
return _set_cacert((void *)addr, sz);
}
#endif
/*
* Legacy syntax support
* Convert [<server_name_or_ip>:]filename into a URL if needed
*/
static int parse_legacy_arg(char *arg, char *nurl, size_t rem)
{
char *p = nurl;
size_t n;
char *col = strchr(arg, ':');
char *env;
char *server;
char *path;
if (strstr(arg, "http") == arg) {
n = snprintf(nurl, rem, "%s", arg);
if (n < 0 || n > rem)
return -1;
return 0;
}
n = snprintf(p, rem, "%s", "http://");
if (n < 0 || n > rem)
return -1;
p += n;
rem -= n;
if (col) {
n = col - arg;
server = arg;
path = col + 1;
} else {
env = env_get("httpserverip");
if (!env)
env = env_get("serverip");
if (!env) {
log_err("error: httpserver/serverip has to be set\n");
return -1;
}
n = strlen(env);
server = env;
path = arg;
}
if (rem < n)
return -1;
strncpy(p, server, n);
p += n;
rem -= n;
if (rem < 1)
return -1;
*p = '/';
p++;
rem--;
n = strlen(path);
if (rem < n)
return -1;
strncpy(p, path, n);
p += n;
rem -= n;
if (rem < 1)
return -1;
*p = '\0';
return 0;
}
int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
char *end;
char *url;
ulong dst_addr;
char nurl[1024];
#if CONFIG_IS_ENABLED(WGET_CACERT)
if (argc == 4 && !strncmp(argv[1], "cacert", strlen("cacert")))
return set_cacert(argv[2], argv[3]);
if (argc == 3 && !strncmp(argv[1], "cacert", strlen("cacert"))) {
#if CONFIG_IS_ENABLED(WGET_BUILTIN_CACERT)
if (!strncmp(argv[2], "builtin", strlen("builtin")))
return set_cacert_builtin();
#endif
if (!strncmp(argv[2], "none", strlen("none")))
return set_auth(AUTH_NONE);
if (!strncmp(argv[2], "optional", strlen("optional")))
return set_auth(AUTH_OPTIONAL);
if (!strncmp(argv[2], "required", strlen("required")))
return set_auth(AUTH_REQUIRED);
return CMD_RET_USAGE;
}
#endif
if (argc < 2 || argc > 3)
return CMD_RET_USAGE;
dst_addr = hextoul(argv[1], &end);
if (end == (argv[1] + strlen(argv[1]))) {
if (argc < 3)
return CMD_RET_USAGE;
url = argv[2];
} else {
dst_addr = image_load_addr;
url = argv[1];
}
if (parse_legacy_arg(url, nurl, sizeof(nurl)))
return CMD_RET_FAILURE;
wget_info = &default_wget_info;
if (wget_do_request(dst_addr, nurl))
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
|
