3 * Joe Hershberger, National Instruments, joe.hershberger@ni.com
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <u-boot/md5.h>
32 * Store the resulting sum to an address or variable
34 static void store_result(const u8 *sum, const char *dest)
41 ptr = (u8 *)simple_strtoul(dest + 1, NULL, 16);
42 for (i = 0; i < 16; i++)
46 char *str_ptr = str_output;
48 for (i = 0; i < 16; i++) {
49 sprintf(str_ptr, "%02x", sum[i]);
53 setenv(dest, str_output);
57 #ifdef CONFIG_MD5SUM_VERIFY
58 static int parse_verify_sum(char *verify_str, u8 *vsum)
60 if (*verify_str == '*') {
63 ptr = (u8 *)simple_strtoul(verify_str + 1, NULL, 16);
64 memcpy(vsum, ptr, 16);
69 if (strlen(verify_str) == 32)
70 vsum_str = verify_str;
72 vsum_str = getenv(verify_str);
73 if (vsum_str == NULL || strlen(vsum_str) != 32)
77 for (i = 0; i < 16; i++) {
78 char *nullp = vsum_str + (i + 1) * 2;
83 simple_strtoul(vsum_str + (i * 2), NULL, 16);
90 int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
101 return CMD_RET_USAGE;
105 if (strcmp(*av, "-v") == 0) {
110 return CMD_RET_USAGE;
113 addr = simple_strtoul(*av++, NULL, 16);
114 len = simple_strtoul(*av++, NULL, 16);
116 md5_wd((unsigned char *) addr, len, output, CHUNKSZ_MD5);
119 printf("md5 for %08lx ... %08lx ==> ", addr, addr + len - 1);
120 for (i = 0; i < 16; i++)
121 printf("%02x", output[i]);
125 store_result(output, *av);
127 char *verify_str = *av++;
129 if (parse_verify_sum(verify_str, vsum)) {
130 printf("ERROR: %s does not contain a valid md5 sum\n",
134 if (memcmp(output, vsum, 16) != 0) {
135 printf("md5 for %08lx ... %08lx ==> ", addr,
137 for (i = 0; i < 16; i++)
138 printf("%02x", output[i]);
140 for (i = 0; i < 16; i++)
141 printf("%02x", vsum[i]);
142 printf(" ** ERROR **\n");
150 static int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
152 unsigned long addr, len;
157 return CMD_RET_USAGE;
159 addr = simple_strtoul(argv[1], NULL, 16);
160 len = simple_strtoul(argv[2], NULL, 16);
162 md5_wd((unsigned char *) addr, len, output, CHUNKSZ_MD5);
163 printf("md5 for %08lx ... %08lx ==> ", addr, addr + len - 1);
164 for (i = 0; i < 16; i++)
165 printf("%02x", output[i]);
169 store_result(output, argv[3]);
175 #ifdef CONFIG_MD5SUM_VERIFY
177 md5sum, 5, 1, do_md5sum,
178 "compute MD5 message digest",
179 "address count [[*]sum]\n"
180 " - compute MD5 message digest [save to sum]\n"
181 "md5sum -v address count [*]sum\n"
182 " - verify md5sum of memory area"
186 md5sum, 4, 1, do_md5sum,
187 "compute MD5 message digest",
188 "address count [[*]sum]\n"
189 " - compute MD5 message digest [save to sum]"