]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/cmd_md5sum.c
3 * Joe Hershberger, National Instruments, joe.hershberger@ni.com
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * SPDX-License-Identifier: GPL-2.0+
13 #include <u-boot/md5.h>
16 * Store the resulting sum to an address or variable
18 static void store_result(const u8
*sum
, const char *dest
)
25 ptr
= (u8
*)simple_strtoul(dest
+ 1, NULL
, 16);
26 for (i
= 0; i
< 16; i
++)
30 char *str_ptr
= str_output
;
32 for (i
= 0; i
< 16; i
++) {
33 sprintf(str_ptr
, "%02x", sum
[i
]);
36 setenv(dest
, str_output
);
40 #ifdef CONFIG_MD5SUM_VERIFY
41 static int parse_verify_sum(char *verify_str
, u8
*vsum
)
43 if (*verify_str
== '*') {
46 ptr
= (u8
*)simple_strtoul(verify_str
+ 1, NULL
, 16);
47 memcpy(vsum
, ptr
, 16);
52 if (strlen(verify_str
) == 32)
53 vsum_str
= verify_str
;
55 vsum_str
= getenv(verify_str
);
56 if (vsum_str
== NULL
|| strlen(vsum_str
) != 32)
60 for (i
= 0; i
< 16; i
++) {
61 char *nullp
= vsum_str
+ (i
+ 1) * 2;
66 simple_strtoul(vsum_str
+ (i
* 2), NULL
, 16);
73 int do_md5sum(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
88 if (strcmp(*av
, "-v") == 0) {
96 addr
= simple_strtoul(*av
++, NULL
, 16);
97 len
= simple_strtoul(*av
++, NULL
, 16);
99 md5_wd((unsigned char *) addr
, len
, output
, CHUNKSZ_MD5
);
102 printf("md5 for %08lx ... %08lx ==> ", addr
, addr
+ len
- 1);
103 for (i
= 0; i
< 16; i
++)
104 printf("%02x", output
[i
]);
108 store_result(output
, *av
);
110 char *verify_str
= *av
++;
112 if (parse_verify_sum(verify_str
, vsum
)) {
113 printf("ERROR: %s does not contain a valid md5 sum\n",
117 if (memcmp(output
, vsum
, 16) != 0) {
118 printf("md5 for %08lx ... %08lx ==> ", addr
,
120 for (i
= 0; i
< 16; i
++)
121 printf("%02x", output
[i
]);
123 for (i
= 0; i
< 16; i
++)
124 printf("%02x", vsum
[i
]);
125 printf(" ** ERROR **\n");
133 static int do_md5sum(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
135 unsigned long addr
, len
;
140 return CMD_RET_USAGE
;
142 addr
= simple_strtoul(argv
[1], NULL
, 16);
143 len
= simple_strtoul(argv
[2], NULL
, 16);
145 md5_wd((unsigned char *) addr
, len
, output
, CHUNKSZ_MD5
);
146 printf("md5 for %08lx ... %08lx ==> ", addr
, addr
+ len
- 1);
147 for (i
= 0; i
< 16; i
++)
148 printf("%02x", output
[i
]);
152 store_result(output
, argv
[3]);
158 #ifdef CONFIG_MD5SUM_VERIFY
160 md5sum
, 5, 1, do_md5sum
,
161 "compute MD5 message digest",
162 "address count [[*]sum]\n"
163 " - compute MD5 message digest [save to sum]\n"
164 "md5sum -v address count [*]sum\n"
165 " - verify md5sum of memory area"
169 md5sum
, 4, 1, do_md5sum
,
170 "compute MD5 message digest",
171 "address count [[*]sum]\n"
172 " - compute MD5 message digest [save to sum]"