1 // SPDX-License-Identifier: GPL-2.0+
4 * Joe Hershberger, National Instruments, joe.hershberger@ni.com
7 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
13 #include <u-boot/md5.h>
17 * Store the resulting sum to an address or variable
19 static void store_result(const u8
*sum
, const char *dest
)
26 ptr
= (u8
*)simple_strtoul(dest
+ 1, NULL
, 16);
27 for (i
= 0; i
< 16; i
++)
31 char *str_ptr
= str_output
;
33 for (i
= 0; i
< 16; i
++) {
34 sprintf(str_ptr
, "%02x", sum
[i
]);
37 env_set(dest
, str_output
);
41 #ifdef CONFIG_MD5SUM_VERIFY
42 static int parse_verify_sum(char *verify_str
, u8
*vsum
)
44 if (*verify_str
== '*') {
47 ptr
= (u8
*)simple_strtoul(verify_str
+ 1, NULL
, 16);
48 memcpy(vsum
, ptr
, 16);
53 if (strlen(verify_str
) == 32)
54 vsum_str
= verify_str
;
56 vsum_str
= env_get(verify_str
);
57 if (vsum_str
== NULL
|| strlen(vsum_str
) != 32)
61 for (i
= 0; i
< 16; i
++) {
62 char *nullp
= vsum_str
+ (i
+ 1) * 2;
67 simple_strtoul(vsum_str
+ (i
* 2), NULL
, 16);
74 int do_md5sum(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
90 if (strcmp(*av
, "-v") == 0) {
98 addr
= simple_strtoul(*av
++, NULL
, 16);
99 len
= simple_strtoul(*av
++, NULL
, 16);
101 buf
= map_sysmem(addr
, len
);
102 md5_wd(buf
, len
, output
, CHUNKSZ_MD5
);
106 printf("md5 for %08lx ... %08lx ==> ", addr
, addr
+ len
- 1);
107 for (i
= 0; i
< 16; i
++)
108 printf("%02x", output
[i
]);
112 store_result(output
, *av
);
114 char *verify_str
= *av
++;
116 if (parse_verify_sum(verify_str
, vsum
)) {
117 printf("ERROR: %s does not contain a valid md5 sum\n",
121 if (memcmp(output
, vsum
, 16) != 0) {
122 printf("md5 for %08lx ... %08lx ==> ", addr
,
124 for (i
= 0; i
< 16; i
++)
125 printf("%02x", output
[i
]);
127 for (i
= 0; i
< 16; i
++)
128 printf("%02x", vsum
[i
]);
129 printf(" ** ERROR **\n");
137 static int do_md5sum(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
139 unsigned long addr
, len
;
145 return CMD_RET_USAGE
;
147 addr
= simple_strtoul(argv
[1], NULL
, 16);
148 len
= simple_strtoul(argv
[2], NULL
, 16);
150 buf
= map_sysmem(addr
, len
);
151 md5_wd(buf
, len
, output
, CHUNKSZ_MD5
);
154 printf("md5 for %08lx ... %08lx ==> ", addr
, addr
+ len
- 1);
155 for (i
= 0; i
< 16; i
++)
156 printf("%02x", output
[i
]);
160 store_result(output
, argv
[3]);
166 #ifdef CONFIG_MD5SUM_VERIFY
168 md5sum
, 5, 1, do_md5sum
,
169 "compute MD5 message digest",
170 "address count [[*]sum]\n"
171 " - compute MD5 message digest [save to sum]\n"
172 "md5sum -v address count [*]sum\n"
173 " - verify md5sum of memory area"
177 md5sum
, 4, 1, do_md5sum
,
178 "compute MD5 message digest",
179 "address count [[*]sum]\n"
180 " - compute MD5 message digest [save to sum]"