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125 lines
3.5 KiB
Diff
125 lines
3.5 KiB
Diff
From bd6aa6acddf0ba640a49834807872f4cc0d0a773 Mon Sep 17 00:00:00 2001
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From: Jani Hakala <jjhakala@gmail.com>
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Date: Thu, 16 Jun 2016 14:28:15 +0300
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Subject: [PATCH] Fix OpenSSL 1.1 compability issues
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Some data types have been made opaque in OpenSSL version 1.1 so
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stack allocation and accessing struct fields directly does not work.
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---
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ssl.c | 65 ++++++++++++++++++++++++++++++++++++++++-------------------------
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1 file changed, 40 insertions(+), 25 deletions(-)
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diff --git a/ssl.c b/ssl.c
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index 4875125..032e9b9 100644
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--- a/ssl.c
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+++ b/ssl.c
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@@ -88,7 +88,7 @@ rdssl_rsa_encrypt(uint8 * out, uint8 * in, int len, uint32 modulus_size, uint8 *
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uint8 * exponent)
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{
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BN_CTX *ctx;
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- BIGNUM mod, exp, x, y;
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+ BIGNUM *mod, *exp, *x, *y;
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uint8 inr[SEC_MAX_MODULUS_SIZE];
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int outlen;
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@@ -98,24 +98,24 @@ rdssl_rsa_encrypt(uint8 * out, uint8 * in, int len, uint32 modulus_size, uint8 *
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reverse(inr, len);
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ctx = BN_CTX_new();
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- BN_init(&mod);
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- BN_init(&exp);
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- BN_init(&x);
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- BN_init(&y);
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-
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- BN_bin2bn(modulus, modulus_size, &mod);
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- BN_bin2bn(exponent, SEC_EXPONENT_SIZE, &exp);
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- BN_bin2bn(inr, len, &x);
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- BN_mod_exp(&y, &x, &exp, &mod, ctx);
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- outlen = BN_bn2bin(&y, out);
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+ mod = BN_new();
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+ exp = BN_new();
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+ x = BN_new();
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+ y = BN_new();
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+
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+ BN_bin2bn(modulus, modulus_size, mod);
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+ BN_bin2bn(exponent, SEC_EXPONENT_SIZE, exp);
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+ BN_bin2bn(inr, len, x);
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+ BN_mod_exp(y, x, exp, mod, ctx);
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+ outlen = BN_bn2bin(y, out);
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reverse(out, outlen);
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if (outlen < (int) modulus_size)
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memset(out + outlen, 0, modulus_size - outlen);
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- BN_free(&y);
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- BN_clear_free(&x);
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- BN_free(&exp);
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- BN_free(&mod);
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+ BN_free(y);
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+ BN_clear_free(x);
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+ BN_free(exp);
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+ BN_free(mod);
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BN_CTX_free(ctx);
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}
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@@ -146,12 +146,20 @@ rdssl_cert_to_rkey(RDSSL_CERT * cert, uint32 * key_len)
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Kudos to Richard Levitte for the following (. intiutive .)
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lines of code that resets the OID and let's us extract the key. */
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- nid = OBJ_obj2nid(cert->cert_info->key->algor->algorithm);
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+
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+ X509_PUBKEY *key = NULL;
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+ X509_ALGOR *algor = NULL;
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+
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+ key = X509_get_X509_PUBKEY(cert);
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+ algor = X509_PUBKEY_get0_param(NULL, NULL, 0, &algor, key);
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+
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+ nid = OBJ_obj2nid(algor->algorithm);
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+
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if ((nid == NID_md5WithRSAEncryption) || (nid == NID_shaWithRSAEncryption))
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{
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DEBUG_RDP5(("Re-setting algorithm type to RSA in server certificate\n"));
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- ASN1_OBJECT_free(cert->cert_info->key->algor->algorithm);
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- cert->cert_info->key->algor->algorithm = OBJ_nid2obj(NID_rsaEncryption);
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+ X509_PUBKEY_set0_param(key, OBJ_nid2obj(NID_rsaEncryption),
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+ 0, NULL, NULL, 0);
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}
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epk = X509_get_pubkey(cert);
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if (NULL == epk)
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@@ -201,14 +209,24 @@ rdssl_rkey_get_exp_mod(RDSSL_RKEY * rkey, uint8 * exponent, uint32 max_exp_len,
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{
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int len;
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- if ((BN_num_bytes(rkey->e) > (int) max_exp_len) ||
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- (BN_num_bytes(rkey->n) > (int) max_mod_len))
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+ BIGNUM *e = NULL;
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+ BIGNUM *n = NULL;
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+
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+#if OPENSSL_VERSION_NUMBER < 0x10100000L
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+ e = rkey->e;
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+ n = rkey->n;
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+#else
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+ RSA_get0_key(rkey, &e, &n, NULL);
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+#endif
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+
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+ if ((BN_num_bytes(e) > (int) max_exp_len) ||
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+ (BN_num_bytes(n) > (int) max_mod_len))
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{
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return 1;
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}
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- len = BN_bn2bin(rkey->e, exponent);
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+ len = BN_bn2bin(e, exponent);
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reverse(exponent, len);
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- len = BN_bn2bin(rkey->n, modulus);
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+ len = BN_bn2bin(n, modulus);
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reverse(modulus, len);
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return 0;
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}
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@@ -229,8 +247,5 @@ void
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rdssl_hmac_md5(const void *key, int key_len, const unsigned char *msg, int msg_len,
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unsigned char *md)
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{
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- HMAC_CTX ctx;
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- HMAC_CTX_init(&ctx);
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HMAC(EVP_md5(), key, key_len, msg, msg_len, md, NULL);
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- HMAC_CTX_cleanup(&ctx);
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}
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