]>
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
]);
37 setenv(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
= getenv(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
[])
89 if (strcmp(*av
, "-v") == 0) {
97 addr
= simple_strtoul(*av
++, NULL
, 16);
98 len
= simple_strtoul(*av
++, NULL
, 16);
100 md5_wd((unsigned char *) addr
, len
, output
, CHUNKSZ_MD5
);
103 printf("md5 for %08lx ... %08lx ==> ", addr
, addr
+ len
- 1);
104 for (i
= 0; i
< 16; i
++)
105 printf("%02x", output
[i
]);
109 store_result(output
, *av
);
111 char *verify_str
= *av
++;
113 if (parse_verify_sum(verify_str
, vsum
)) {
114 printf("ERROR: %s does not contain a valid md5 sum\n",
118 if (memcmp(output
, vsum
, 16) != 0) {
119 printf("md5 for %08lx ... %08lx ==> ", addr
,
121 for (i
= 0; i
< 16; i
++)
122 printf("%02x", output
[i
]);
124 for (i
= 0; i
< 16; i
++)
125 printf("%02x", vsum
[i
]);
126 printf(" ** ERROR **\n");
134 static int do_md5sum(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char * const argv
[])
136 unsigned long addr
, len
;
141 return CMD_RET_USAGE
;
143 addr
= simple_strtoul(argv
[1], NULL
, 16);
144 len
= simple_strtoul(argv
[2], NULL
, 16);
146 md5_wd((unsigned char *) addr
, len
, output
, CHUNKSZ_MD5
);
147 printf("md5 for %08lx ... %08lx ==> ", addr
, addr
+ len
- 1);
148 for (i
= 0; i
< 16; i
++)
149 printf("%02x", output
[i
]);
153 store_result(output
, argv
[3]);
159 #ifdef CONFIG_MD5SUM_VERIFY
161 md5sum
, 5, 1, do_md5sum
,
162 "compute MD5 message digest",
163 "address count [[*]sum]\n"
164 " - compute MD5 message digest [save to sum]\n"
165 "md5sum -v address count [*]sum\n"
166 " - verify md5sum of memory area"
170 md5sum
, 4, 1, do_md5sum
,
171 "compute MD5 message digest",
172 "address count [[*]sum]\n"
173 " - compute MD5 message digest [save to sum]"