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Simon Glassf158ba12020-11-05 10:33:38 -07001// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Tests for bootm routines
4 *
5 * Copyright 2020 Google LLC
6 */
7
8#include <common.h>
9#include <bootm.h>
Simon Glass401d1c42020-10-30 21:38:53 -060010#include <asm/global_data.h>
Simon Glassf158ba12020-11-05 10:33:38 -070011#include <test/suites.h>
12#include <test/test.h>
13#include <test/ut.h>
14
15DECLARE_GLOBAL_DATA_PTR;
16
17#define BOOTM_TEST(_name, _flags) UNIT_TEST(_name, _flags, bootm_test)
18
Simon Glass4448fe82020-11-05 10:33:45 -070019enum {
20 BUF_SIZE = 1024,
21};
22
Simon Glassf158ba12020-11-05 10:33:38 -070023#define CONSOLE_STR "console=/dev/ttyS0"
24
Simon Glass4448fe82020-11-05 10:33:45 -070025/* Test cmdline processing where nothing happens */
26static int bootm_test_nop(struct unit_test_state *uts)
27{
28 char buf[BUF_SIZE];
29
30 *buf = '\0';
31 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, true));
32 ut_asserteq_str("", buf);
33
34 strcpy(buf, "test");
35 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, true));
36 ut_asserteq_str("test", buf);
37
38 return 0;
39}
40BOOTM_TEST(bootm_test_nop, 0);
41
42/* Test cmdline processing when out of space */
43static int bootm_test_nospace(struct unit_test_state *uts)
44{
45 char buf[BUF_SIZE];
46
47 /* Zero buffer size */
48 *buf = '\0';
49 ut_asserteq(-ENOSPC, bootm_process_cmdline(buf, 0, true));
50
51 /* Buffer string not terminated */
52 memset(buf, 'a', BUF_SIZE);
53 ut_asserteq(-ENOSPC, bootm_process_cmdline(buf, BUF_SIZE, true));
54
55 /* Not enough space to copy string */
56 memset(buf, '\0', BUF_SIZE);
57 memset(buf, 'a', BUF_SIZE / 2);
58 ut_asserteq(-ENOSPC, bootm_process_cmdline(buf, BUF_SIZE, true));
59
60 /* Just enough space */
61 memset(buf, '\0', BUF_SIZE);
62 memset(buf, 'a', BUF_SIZE / 2 - 1);
63 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, true));
64
65 return 0;
66}
67BOOTM_TEST(bootm_test_nospace, 0);
68
69/* Test silent processing */
70static int bootm_test_silent(struct unit_test_state *uts)
71{
72 char buf[BUF_SIZE];
73
74 /* 'silent_linux' not set should do nothing */
75 env_set("silent_linux", NULL);
76 strcpy(buf, CONSOLE_STR);
77 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SILENT));
78 ut_asserteq_str(CONSOLE_STR, buf);
79
80 ut_assertok(env_set("silent_linux", "no"));
81 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SILENT));
82 ut_asserteq_str(CONSOLE_STR, buf);
83
84 ut_assertok(env_set("silent_linux", "yes"));
85 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SILENT));
86 ut_asserteq_str("console=", buf);
87
88 /* Empty buffer should still add the string */
89 *buf = '\0';
90 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SILENT));
91 ut_asserteq_str("console=", buf);
92
93 /* Check nothing happens when do_silent is false */
94 *buf = '\0';
95 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, 0));
96 ut_asserteq_str("", buf);
97
98 /* Not enough space */
99 *buf = '\0';
100 ut_asserteq(-ENOSPC, bootm_process_cmdline(buf, 8, BOOTM_CL_SILENT));
101
102 /* Just enough space */
103 *buf = '\0';
104 ut_assertok(bootm_process_cmdline(buf, 9, BOOTM_CL_SILENT));
105
106 /* add at end */
107 strcpy(buf, "something");
108 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SILENT));
109 ut_asserteq_str("something console=", buf);
110
111 /* change at start */
112 strcpy(buf, CONSOLE_STR " something");
113 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SILENT));
114 ut_asserteq_str("console= something", buf);
115
116 return 0;
117}
118BOOTM_TEST(bootm_test_silent, 0);
119
Simon Glass51bb3382020-11-05 10:33:48 -0700120/* Test substitution processing */
121static int bootm_test_subst(struct unit_test_state *uts)
122{
123 char buf[BUF_SIZE];
124
125 /* try with an unset variable */
126 ut_assertok(env_set("var", NULL));
127 strcpy(buf, "some${var}thing");
128 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
129 ut_asserteq_str("something", buf);
130
131 /* Replace with shorter string */
132 ut_assertok(env_set("var", "bb"));
133 strcpy(buf, "some${var}thing");
134 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
135 ut_asserteq_str("somebbthing", buf);
136
137 /* Replace with same-length string */
138 ut_assertok(env_set("var", "abc"));
139 strcpy(buf, "some${var}thing");
140 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
141 ut_asserteq_str("someabcthing", buf);
142
143 /* Replace with longer string */
144 ut_assertok(env_set("var", "abcde"));
145 strcpy(buf, "some${var}thing");
146 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
147 ut_asserteq_str("someabcdething", buf);
148
149 /* Check it is case sensitive */
150 ut_assertok(env_set("VAR", NULL));
151 strcpy(buf, "some${VAR}thing");
152 ut_assertok(bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
153 ut_asserteq_str("something", buf);
154
155 /* Check too long - need 12 bytes for each string */
156 strcpy(buf, "some${var}thing");
157 ut_asserteq(-ENOSPC,
158 bootm_process_cmdline(buf, 12 * 2 - 1, BOOTM_CL_SUBST));
159
160 /* Check just enough space */
161 strcpy(buf, "some${var}thing");
162 ut_assertok(bootm_process_cmdline(buf, 16 * 2, BOOTM_CL_SUBST));
163 ut_asserteq_str("someabcdething", buf);
164
165 /*
166 * Check the substition string being too long. This results in a string
167 * of 12 (13 bytes). We need enough space for that plus the original
168 * "a${var}c" string of 9 bytes. So 12 + 9 = 21 bytes.
169 */
170 ut_assertok(env_set("var", "1234567890"));
171 strcpy(buf, "a${var}c");
172 ut_asserteq(-ENOSPC, bootm_process_cmdline(buf, 21, BOOTM_CL_SUBST));
173
174 strcpy(buf, "a${var}c");
175 ut_asserteq(0, bootm_process_cmdline(buf, 22, BOOTM_CL_SUBST));
176
177 /* Check multiple substitutions */
178 ut_assertok(env_set("var", "abc"));
179 strcpy(buf, "some${var}thing${bvar}else");
180 ut_asserteq(0, bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
181 ut_asserteq_str("someabcthingelse", buf);
182
183 /* Check multiple substitutions */
184 ut_assertok(env_set("bvar", "123"));
185 strcpy(buf, "some${var}thing${bvar}else");
186 ut_asserteq(0, bootm_process_cmdline(buf, BUF_SIZE, BOOTM_CL_SUBST));
187 ut_asserteq_str("someabcthing123else", buf);
188
189 return 0;
190}
191BOOTM_TEST(bootm_test_subst, 0);
192
Simon Glassf158ba12020-11-05 10:33:38 -0700193/* Test silent processing in the bootargs variable */
194static int bootm_test_silent_var(struct unit_test_state *uts)
195{
Simon Glassf158ba12020-11-05 10:33:38 -0700196 env_set("bootargs", NULL);
Simon Glass51bb3382020-11-05 10:33:48 -0700197 ut_assertok(bootm_process_cmdline_env(BOOTM_CL_SUBST));
Simon Glassf158ba12020-11-05 10:33:38 -0700198 ut_assertnull(env_get("bootargs"));
199
Simon Glass51bb3382020-11-05 10:33:48 -0700200 ut_assertok(env_set("bootargs", "some${var}thing"));
201 ut_assertok(bootm_process_cmdline_env(BOOTM_CL_SUBST));
202 ut_asserteq_str("something", env_get("bootargs"));
Simon Glassf158ba12020-11-05 10:33:38 -0700203
204 return 0;
205}
206BOOTM_TEST(bootm_test_silent_var, 0);
207
Simon Glass51bb3382020-11-05 10:33:48 -0700208/* Test substitution processing in the bootargs variable */
209static int bootm_test_subst_var(struct unit_test_state *uts)
210{
211 env_set("bootargs", NULL);
212 ut_assertok(bootm_process_cmdline_env(BOOTM_CL_SILENT));
213 ut_asserteq_str("console=", env_get("bootargs"));
214
215 ut_assertok(env_set("var", "abc"));
216 ut_assertok(env_set("bootargs", "some${var}thing"));
217 ut_assertok(bootm_process_cmdline_env(BOOTM_CL_SILENT));
218 ut_asserteq_str("some${var}thing console=", env_get("bootargs"));
219
220 return 0;
221}
222BOOTM_TEST(bootm_test_subst_var, 0);
223
224/* Test substitution and silent console processing in the bootargs variable */
225static int bootm_test_subst_both(struct unit_test_state *uts)
226{
227 ut_assertok(env_set("silent_linux", "yes"));
228 env_set("bootargs", NULL);
229 ut_assertok(bootm_process_cmdline_env(BOOTM_CL_ALL));
230 ut_asserteq_str("console=", env_get("bootargs"));
231
232 ut_assertok(env_set("bootargs", "some${var}thing " CONSOLE_STR));
233 ut_assertok(env_set("var", "1234567890"));
234 ut_assertok(bootm_process_cmdline_env(BOOTM_CL_ALL));
235 ut_asserteq_str("some1234567890thing console=", env_get("bootargs"));
236
237 return 0;
238}
239BOOTM_TEST(bootm_test_subst_both, 0);
240
Simon Glassf158ba12020-11-05 10:33:38 -0700241int do_ut_bootm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
242{
Simon Glassa7a98752021-03-07 17:35:10 -0700243 struct unit_test *tests = UNIT_TEST_SUITE_START(bootm_test);
244 const int n_ents = UNIT_TEST_SUITE_COUNT(bootm_test);
Simon Glassf158ba12020-11-05 10:33:38 -0700245
246 return cmd_ut_category("bootm", "bootm_test_", tests, n_ents,
247 argc, argv);
248}