1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2012, The Chromium Authors
4 */
5
6 #define DEBUG
7
8 #include <common.h>
9 #include <command.h>
10 #include <efi_api.h>
11 #include <display_options.h>
12 #include <log.h>
13 #include <version.h>
14
15 #define FAKE_BUILD_TAG "jenkins-u-boot-denx_uboot_dm-master-build-aarch64" \
16 "and a lot more text to come"
17
18 /* Test printing GUIDs */
guid_ut_print(void)19 static void guid_ut_print(void)
20 {
21 #if CONFIG_IS_ENABLED(LIB_UUID)
22 unsigned char guid[16] = {
23 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
24 };
25 char str[40];
26
27 sprintf(str, "%pUb", guid);
28 assert(!strcmp("01020304-0506-0708-090a-0b0c0d0e0f10", str));
29 sprintf(str, "%pUB", guid);
30 assert(!strcmp("01020304-0506-0708-090A-0B0C0D0E0F10", str));
31 sprintf(str, "%pUl", guid);
32 assert(!strcmp("04030201-0605-0807-090a-0b0c0d0e0f10", str));
33 sprintf(str, "%pUL", guid);
34 assert(!strcmp("04030201-0605-0807-090A-0B0C0D0E0F10", str));
35 #endif
36 }
37
38 /* Test efi_loader specific printing */
efi_ut_print(void)39 static void efi_ut_print(void)
40 {
41 #if CONFIG_IS_ENABLED(EFI_LOADER) && !defined(API_BUILD)
42 char str[10];
43 u8 buf[sizeof(struct efi_device_path_sd_mmc_path) +
44 sizeof(struct efi_device_path)];
45 u8 *pos = buf;
46 struct efi_device_path *dp_end;
47 struct efi_device_path_sd_mmc_path *dp_sd =
48 (struct efi_device_path_sd_mmc_path *)pos;
49
50 /* Create a device path for an SD card */
51 dp_sd->dp.type = DEVICE_PATH_TYPE_MESSAGING_DEVICE;
52 dp_sd->dp.sub_type = DEVICE_PATH_SUB_TYPE_MSG_SD;
53 dp_sd->dp.length = sizeof(struct efi_device_path_sd_mmc_path);
54 dp_sd->slot_number = 3;
55 pos += sizeof(struct efi_device_path_sd_mmc_path);
56 /* Append end node */
57 dp_end = (struct efi_device_path *)pos;
58 dp_end->type = DEVICE_PATH_TYPE_END;
59 dp_end->sub_type = DEVICE_PATH_SUB_TYPE_END;
60 dp_end->length = sizeof(struct efi_device_path);
61
62 snprintf(str, sizeof(str), "_%pD_", buf);
63 assert(!strcmp("_/SD(3)_", str));
64
65 /* NULL device path */
66 snprintf(str, sizeof(str), "_%pD_", NULL);
67 assert(!strcmp("_<NULL>_", str));
68 #endif
69 }
70
do_ut_print(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])71 static int do_ut_print(struct cmd_tbl *cmdtp, int flag, int argc,
72 char *const argv[])
73 {
74 char big_str[400];
75 int big_str_len;
76 char str[10], *s;
77 int len;
78
79 printf("%s: Testing print\n", __func__);
80
81 snprintf(str, sizeof(str), "testing");
82 assert(!strcmp("testing", str));
83
84 snprintf(str, sizeof(str), "testing but too long");
85 assert(!strcmp("testing b", str));
86
87 snprintf(str, 1, "testing none");
88 assert(!strcmp("", str));
89
90 *str = 'x';
91 snprintf(str, 0, "testing none");
92 assert(*str == 'x');
93
94 sprintf(big_str, "_%ls_", L"foo");
95 assert(!strcmp("_foo_", big_str));
96
97 /* Test the banner function */
98 s = display_options_get_banner(true, str, sizeof(str));
99 assert(s == str);
100 assert(!strcmp("\n\nU-Boo\n\n", s));
101
102 /* Assert that we do not overwrite memory before the buffer */
103 str[0] = '`';
104 s = display_options_get_banner(true, str + 1, 1);
105 assert(s == str + 1);
106 assert(!strcmp("`", str));
107
108 str[0] = '~';
109 s = display_options_get_banner(true, str + 1, 2);
110 assert(s == str + 1);
111 assert(!strcmp("~\n", str));
112
113 /* The last two characters are set to \n\n for all buffer sizes > 2 */
114 s = display_options_get_banner(false, str, sizeof(str));
115 assert(s == str);
116 assert(!strcmp("U-Boot \n\n", s));
117
118 /* Give it enough space for some of the version */
119 big_str_len = strlen(version_string) - 5;
120 s = display_options_get_banner_priv(false, FAKE_BUILD_TAG, big_str,
121 big_str_len);
122 assert(s == big_str);
123 assert(!strncmp(version_string, s, big_str_len - 3));
124 assert(!strcmp("\n\n", s + big_str_len - 3));
125
126 /* Give it enough space for the version and some of the build tag */
127 big_str_len = strlen(version_string) + 9 + 20;
128 s = display_options_get_banner_priv(false, FAKE_BUILD_TAG, big_str,
129 big_str_len);
130 assert(s == big_str);
131 len = strlen(version_string);
132 assert(!strncmp(version_string, s, len));
133 assert(!strncmp(", Build: ", s + len, 9));
134 assert(!strncmp(FAKE_BUILD_TAG, s + 9 + len, 12));
135 assert(!strcmp("\n\n", s + big_str_len - 3));
136
137 /* Test efi_loader specific printing */
138 efi_ut_print();
139
140 /* Test printing GUIDs */
141 guid_ut_print();
142
143 printf("%s: Everything went swimmingly\n", __func__);
144 return 0;
145 }
146
147 U_BOOT_CMD(
148 ut_print, 1, 1, do_ut_print,
149 "Very basic test of printf(), etc.",
150 ""
151 );
152