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Add OpenSSL 1.1.0 support in saslauthd #8

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Nov 7, 2016
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6 changes: 3 additions & 3 deletions plugins/ntlm.c
Original file line number Diff line number Diff line change
Expand Up @@ -424,8 +424,8 @@ static HMAC_CTX *_plug_HMAC_CTX_new(const sasl_utils_t *utils)
#if OPENSSL_VERSION_NUMBER >= 0x10100000L
return HMAC_CTX_new();
#else
return utils->malloc(sizeof(EVP_MD_CTX));
#endif
return utils->malloc(sizeof(HMAC_CTX));
#endif
}

static void _plug_HMAC_CTX_free(HMAC_CTX *ctx, const sasl_utils_t *utils)
Expand All @@ -437,7 +437,7 @@ static void _plug_HMAC_CTX_free(HMAC_CTX *ctx, const sasl_utils_t *utils)
#else
HMAC_cleanup(ctx);
utils->free(ctx);
#endif
#endif
}

static unsigned char *V2(unsigned char *V2, sasl_secret_t *passwd,
Expand Down
12 changes: 6 additions & 6 deletions plugins/otp.c
Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,7 @@ static EVP_MD_CTX *_plug_EVP_MD_CTX_new(const sasl_utils_t *utils)
return EVP_MD_CTX_new();
#else
return utils->malloc(sizeof(EVP_MD_CTX));
#endif
#endif
}

static void _plug_EVP_MD_CTX_free(EVP_MD_CTX *ctx, const sasl_utils_t *utils)
Expand All @@ -115,7 +115,7 @@ static void _plug_EVP_MD_CTX_free(EVP_MD_CTX *ctx, const sasl_utils_t *utils)
EVP_MD_CTX_free(ctx);
#else
utils->free(ctx);
#endif
#endif
}

/* Convert the binary data into ASCII hex */
Expand Down Expand Up @@ -180,13 +180,13 @@ static int generate_otp(const sasl_utils_t *utils,
"OTP algorithm %s is not available", alg->evp_name);
return SASL_FAIL;
}

if ((mdctx = _plug_EVP_MD_CTX_new(utils)) == NULL) {
SETERROR(utils, "cannot allocate MD CTX");
r = SASL_NOMEM;
goto done;
}

if ((key = utils->malloc(strlen(seed) + secret_len + 1)) == NULL) {
SETERROR(utils, "cannot allocate OTP key");
r = SASL_NOMEM;
Expand All @@ -201,10 +201,10 @@ static int generate_otp(const sasl_utils_t *utils,
while (seq-- > 0)
otp_hash(md, (char *) otp, OTP_HASH_SIZE, otp, alg->swab, mdctx);

done:
done:
if (key) utils->free(key);
if (mdctx) _plug_EVP_MD_CTX_free(mdctx, utils);

return r;
}

Expand Down
66 changes: 55 additions & 11 deletions saslauthd/lak.c
Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,35 @@
#include <sasl.h>
#include "lak.h"

#if OPENSSL_VERSION_NUMBER < 0x10100000L
static EVP_MD_CTX *EVP_MD_CTX_new(void)
{
return EVP_MD_CTX_create();
}
static void EVP_MD_CTX_free(EVP_MD_CTX *ctx)
{
if (ctx == NULL)
return;

EVP_MD_CTX_destroy(ctx);
}

static EVP_ENCODE_CTX *EVP_ENCODE_CTX_new(void)
{
EVP_ENCODE_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));

if (ctx != NULL) {
memset(ctx, 0, sizeof(*ctx));
}
return ctx;
}
static void EVP_ENCODE_CTX_free(EVP_ENCODE_CTX *ctx)
{
OPENSSL_free(ctx);
return;
}
#endif

typedef struct lak_auth_method {
int method;
int (*check) (LAK *lak, const char *user, const char *service, const char *realm, const char *password) ;
Expand Down Expand Up @@ -1720,20 +1749,28 @@ static int lak_base64_decode(

int rc, i, tlen = 0;
char *text;
EVP_ENCODE_CTX EVP_ctx;
EVP_ENCODE_CTX *enc_ctx = EVP_ENCODE_CTX_new();

if (enc_ctx == NULL)
return LAK_NOMEM;

text = (char *)malloc(((strlen(src)+3)/4 * 3) + 1);
if (text == NULL)
if (text == NULL) {
EVP_ENCODE_CTX_free(enc_ctx);
return LAK_NOMEM;
}

EVP_DecodeInit(&EVP_ctx);
rc = EVP_DecodeUpdate(&EVP_ctx, (unsigned char *) text, &i, (const unsigned char *)src, strlen(src));
EVP_DecodeInit(enc_ctx);
rc = EVP_DecodeUpdate(enc_ctx, (unsigned char *) text, &i, (const unsigned char *)src, strlen(src));
if (rc < 0) {
EVP_ENCODE_CTX_free(enc_ctx);
free(text);
return LAK_FAIL;
}
tlen += i;
EVP_DecodeFinal(&EVP_ctx, (unsigned char *) text, &i);
EVP_DecodeFinal(enc_ctx, (unsigned char *) text, &i);

EVP_ENCODE_CTX_free(enc_ctx);

*ret = text;
if (rlen != NULL)
Expand All @@ -1749,7 +1786,7 @@ static int lak_check_hashed(
{
int rc, clen;
LAK_HASH_ROCK *hrock = (LAK_HASH_ROCK *) rock;
EVP_MD_CTX mdctx;
EVP_MD_CTX *mdctx;
const EVP_MD *md;
unsigned char digest[EVP_MAX_MD_SIZE];
char *cred;
Expand All @@ -1758,17 +1795,24 @@ static int lak_check_hashed(
if (!md)
return LAK_FAIL;

mdctx = EVP_MD_CTX_new();
if (!mdctx)
return LAK_NOMEM;

rc = lak_base64_decode(hash, &cred, &clen);
if (rc != LAK_OK)
if (rc != LAK_OK) {
EVP_MD_CTX_free(mdctx);
return rc;
}

EVP_DigestInit(&mdctx, md);
EVP_DigestUpdate(&mdctx, passwd, strlen(passwd));
EVP_DigestInit(mdctx, md);
EVP_DigestUpdate(mdctx, passwd, strlen(passwd));
if (hrock->salted) {
EVP_DigestUpdate(&mdctx, &cred[EVP_MD_size(md)],
EVP_DigestUpdate(mdctx, &cred[EVP_MD_size(md)],
clen - EVP_MD_size(md));
}
EVP_DigestFinal(&mdctx, digest, NULL);
EVP_DigestFinal(mdctx, digest, NULL);
EVP_MD_CTX_free(mdctx);

rc = memcmp((char *)cred, (char *)digest, EVP_MD_size(md));
free(cred);
Expand Down