[U-Boot] Add md5sum and sha1 commands...

[Robin Getz]

From: Robin Getz <rgetz at blackfin.uclinux.org>

Now that we have sha1 and md5 in lib_generic, allow people to use them on
the command line, for checking downloaded files

Signed-off-by: Robin Getz <rgetz at analog.com>

 README           |    4 ++
 common/cmd_mem.c |   73 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)

---

diff --git a/README b/README
index 9071472..cf3867d 100644
--- a/README
+++ b/README
@@ -629,6 +629,8 @@ The following options need to be configured:
 		CONFIG_CMD_KGDB		* kgdb
 		CONFIG_CMD_LOADB	  loadb
 		CONFIG_CMD_LOADS	  loads
+		CONFIG_CMD_MD5SUM	  print md5 message digest
+					  (requires CONFIG_CMD_MEMORY and CONFIG_MD5)
 		CONFIG_CMD_MEMORY	  md, mm, nm, mw, cp, cmp, crc, base,
 					  loop, loopw, mtest
 		CONFIG_CMD_MISC		  Misc functions like sleep etc
@@ -652,6 +654,8 @@ The following options need to be configured:
 					  (requires CONFIG_CMD_I2C)
 		CONFIG_CMD_SETGETDCR	  Support for DCR Register access
 					  (4xx only)
+		CONFIG_CMD_SHA1		  print sha1 memory digest
+					  (requires CONFIG_CMD_MEMORY)
 		CONFIG_CMD_SOURCE	  "source" command Support
 		CONFIG_CMD_SPI		* SPI serial bus support
 		CONFIG_CMD_USB		* USB support
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index cdf8c79..ac2492c 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -34,6 +34,14 @@
 #endif
 #include <watchdog.h>
 
+#ifdef CONFIG_CMD_MD5SUM
+#include <u-boot/md5.h>
+#endif
+
+#ifdef CONFIG_CMD_SHA1
+#include <sha1.h>
+#endif
+
 #ifdef	CMD_MEM_DEBUG
 #define	PRINTF(fmt,args...)	printf (fmt ,##args)
 #else
@@ -1141,6 +1149,55 @@ int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 }
 #endif	/* CONFIG_CRC32_VERIFY */
 
+#ifdef CONFIG_CMD_MD5SUM
+int do_md5sum(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	unsigned long addr, len;
+	unsigned int i;
+	u8 output[16];
+
+	if (argc < 3) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+	len = simple_strtoul(argv[2], NULL, 16);
+
+	md5((unsigned char *) addr, len, output);
+	printf("md5 for %08lx ... %08lx ==> ", addr, addr + len - 1);
+	for (i = 0; i < 16 ; i++)
+		printf("%02x", output[i]);
+	printf("\n");
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_CMD_SHA1
+int do_sha1(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	unsigned long addr, len;
+	unsigned int i;
+	u8 output[20];
+
+	if (argc < 3) {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+	len = simple_strtoul(argv[2], NULL, 16);
+
+	sha1_csum((unsigned char *) addr, len, output);
+	printf("SHA1 for %08lx ... %08lx ==> ", addr, addr + len - 1);
+	for (i = 0; i < 20 ; i++)
+		printf("%02x", output[i]);
+	printf("\n");
+
+	return 0;
+}
+#endif
 
 #ifdef CONFIG_CMD_UNZIP
 int  gunzip (void *, int, unsigned char *, unsigned long *);
@@ -1267,6 +1324,22 @@ U_BOOT_CMD(
 );
 #endif /* CONFIG_MX_CYCLIC */
 
+#ifdef CONFIG_CMD_MD5SUM
+U_BOOT_CMD(
+	md5sum,	3,	1,	do_md5sum,
+	"compute MD5 message digest",
+	"address count"
+);
+#endif
+
+#ifdef CONFIG_CMD_SHA1
+U_BOOT_CMD(
+	sha1,	3,	1,	do_sha1,
+	"compute SHA1 message digest",
+	"address count"
+);
+#endif /* CONFIG_CMD_SHA1 */
+
 #ifdef CONFIG_CMD_UNZIP
 U_BOOT_CMD(
 	unzip,	4,	1,	do_unzip,