diff options
| -rw-r--r-- | include/common.h | 1 | ||||
| -rw-r--r-- | include/sha1.h | 11 | ||||
| -rw-r--r-- | include/u-boot/md5.h | 8 | ||||
| -rw-r--r-- | lib_generic/crc32.c | 27 | ||||
| -rw-r--r-- | lib_generic/md5.c | 36 | ||||
| -rw-r--r-- | lib_generic/sha1.c | 33 |
6 files changed, 116 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h index fa1d052..0ac1f80 100644 --- a/include/common.h +++ b/include/common.h @@ -605,6 +605,7 @@ int vsprintf(char *buf, const char *fmt, va_list args); /* lib_generic/crc32.c */ uint32_t crc32 (uint32_t, const unsigned char *, uint); +uint32_t crc32_wd (uint32_t, const unsigned char *, uint, uint); uint32_t crc32_no_comp (uint32_t, const unsigned char *, uint); /* common/console.c */ diff --git a/include/sha1.h b/include/sha1.h index 15ea13c..734d1fb 100644 --- a/include/sha1.h +++ b/include/sha1.h @@ -80,6 +80,17 @@ void sha1_csum( unsigned char *input, int ilen, unsigned char output[20] ); /** + * \brief Output = SHA-1( input buffer ), with watchdog triggering + * + * \param input buffer holding the data + * \param ilen length of the input data + * \param output SHA-1 checksum result + * \param chunk_sz watchdog triggering period (in bytes of input processed) + */ +void sha1_csum_wd (unsigned char *input, int ilen, + unsigned char output[20], unsigned int chunk_sz); + +/** * \brief Output = SHA-1( file contents ) * * \param path input file name diff --git a/include/u-boot/md5.h b/include/u-boot/md5.h index 046d1ee..8b44a7f 100644 --- a/include/u-boot/md5.h +++ b/include/u-boot/md5.h @@ -20,4 +20,12 @@ struct MD5Context { */ void md5 (unsigned char *input, int len, unsigned char output[16]); +/* + * Calculate and store in 'output' the MD5 digest of 'len' bytes at 'input'. + * 'output' must have enough space to hold 16 bytes. If 'chunk' Trigger the + * watchdog every 'chunk_sz' bytes of input processed. + */ +void md5_wd (unsigned char *input, int len, unsigned char output[16], + unsigned int chunk_sz); + #endif /* _MD5_H */ diff --git a/lib_generic/crc32.c b/lib_generic/crc32.c index b882daa..58cd22e 100644 --- a/lib_generic/crc32.c +++ b/lib_generic/crc32.c @@ -198,3 +198,30 @@ uint32_t ZEXPORT crc32_no_comp(uint32_t crc, const Bytef *buf, uInt len) } #endif + +/* + * Calculate the crc32 checksum triggering the watchdog every 'chunk_sz' bytes + * of input. + */ +ulong crc32_wd (ulong crc, const unsigned char *buf, uint len, uint chunk_sz) +{ +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + const unsigned char *end, *curr; + int chunk; + + curr = buf; + end = buf + len; + while (curr < end) { + chunk = end - curr; + if (chunk > chunk_sz) + chunk = chunk_sz; + crc = crc32 (crc, curr, chunk); + curr += chunk; + WATCHDOG_RESET (); + } +#else + crc = crc32 (crc, buf, len); +#endif + + return crc; +} diff --git a/lib_generic/md5.c b/lib_generic/md5.c index 3cee431..20178b8 100644 --- a/lib_generic/md5.c +++ b/lib_generic/md5.c @@ -272,3 +272,39 @@ md5 (unsigned char *input, int len, unsigned char output[16]) MD5Update(&context, input, len); MD5Final(output, &context); } + + +/* + * Calculate and store in 'output' the MD5 digest of 'len' bytes at 'input'. + * 'output' must have enough space to hold 16 bytes. If 'chunk' Trigger the + * watchdog every 'chunk_sz' bytes of input processed. + */ +void +md5_wd (unsigned char *input, int len, unsigned char output[16], + unsigned int chunk_sz) +{ + struct MD5Context context; +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + unsigned char *end, *curr; + int chunk; +#endif + + MD5Init(&context); + +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + curr = input; + end = input + len; + while (curr < end) { + chunk = end - curr; + if (chunk > chunk_sz) + chunk = chunk_sz; + MD5Update(&context, curr, chunk); + curr += chunk; + WATCHDOG_RESET (); + } +#else + MD5Update(&context, input, len); +#endif + + MD5Final(output, &context); +} diff --git a/lib_generic/sha1.c b/lib_generic/sha1.c index 08ffa6b..6950659 100644 --- a/lib_generic/sha1.c +++ b/lib_generic/sha1.c @@ -309,6 +309,39 @@ void sha1_csum (unsigned char *input, int ilen, unsigned char output[20]) } /* + * Output = SHA-1( input buffer ). Trigger the watchdog every 'chunk_sz' + * bytes of input processed. + */ +void sha1_csum_wd (unsigned char *input, int ilen, unsigned char output[20], + unsigned int chunk_sz) +{ + sha1_context ctx; +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + unsigned char *end, *curr; + int chunk; +#endif + + sha1_starts (&ctx); + +#if defined(CONFIG_HW_WATCHDOG) || defined(CONFIG_WATCHDOG) + curr = input; + end = input + ilen; + while (curr < end) { + chunk = end - curr; + if (chunk > chunk_sz) + chunk = chunk_sz; + sha1_update (&ctx, curr, chunk); + curr += chunk; + WATCHDOG_RESET (); + } +#else + sha1_update (&ctx, input, ilen); +#endif + + sha1_finish (&ctx, output); +} + +/* * Output = HMAC-SHA-1( input buffer, hmac key ) */ void sha1_hmac (unsigned char *key, int keylen, |