diff options
Diffstat (limited to 'lib/crypt/crypt.c')
| -rw-r--r-- | lib/crypt/crypt.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/lib/crypt/crypt.c b/lib/crypt/crypt.c index 4ec6079768..247c34b2a9 100644 --- a/lib/crypt/crypt.c +++ b/lib/crypt/crypt.c @@ -5,8 +5,8 @@ #include <crypt.h> #include "crypt-port.h" -typedef void (*crypt_fn)(const char *, size_t, const char *, size_t, uint8_t *, - size_t, void *, size_t); +typedef int (*crypt_fn)(const char *, size_t, const char *, size_t, uint8_t *, + size_t, void *, size_t); const unsigned char ascii64[65] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; @@ -29,19 +29,20 @@ static void equals_constant_time(const void *a_, const void *b_, size_t len, *equal = ret ^ 1; } -void crypt_compare(const char *should, const char *passphrase, int *equal) +int crypt_compare(const char *should, const char *passphrase, int *equal) { u8 output[CRYPT_OUTPUT_SIZE], scratch[ALG_SPECIFIC_SIZE]; size_t n; + int err; struct { const char *prefix; crypt_fn crypt; } crypt_algos[] = { #if defined(CONFIG_CRYPT_PW_SHA256) - { "$5$", crypt_sha256crypt_rn }, + { "$5$", crypt_sha256crypt_rn_wrapped }, #endif #if defined(CONFIG_CRYPT_PW_SHA512) - { "$6$", crypt_sha512crypt_rn }, + { "$6$", crypt_sha512crypt_rn_wrapped }, #endif { NULL, NULL } }; @@ -56,18 +57,20 @@ void crypt_compare(const char *should, const char *passphrase, int *equal) } if (n >= ARRAY_SIZE(crypt_algos)) - return; - - crypt_algos[n].crypt(passphrase, strlen(passphrase), should, 0, output, - sizeof(output), scratch, sizeof(scratch)); + return -EINVAL; + err = crypt_algos[n].crypt(passphrase, strlen(passphrase), should, 0, + output, sizeof(output), scratch, + sizeof(scratch)); /* early return on error, nothing really happened inside the crypt() function */ - if (errno == ERANGE || errno == EINVAL) - return; + if (err) + return err; equals_constant_time(should, output, strlen((const char *)output), equal); memset(scratch, 0, sizeof(scratch)); memset(output, 0, sizeof(output)); + + return 0; } |