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Re: pkg/53401



The following reply was made to PR pkg/53401; it has been noted by GNATS.

From: Brett Lymn <blymn%internode.on.net@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/53401
Date: Fri, 16 Nov 2018 18:00:52 +1030

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 The following lightly edited patch comes from the Debian people and
 fixes the issue with compiling sendmail against openssl 1.1.
 
 Tested working on my machine.
 
 -- 
 Brett Lymn
 Let go, or be dragged - Zen proverb.
 
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 From 02edb8d94682fcf13a7e98618294e06f728e66e6 Mon Sep 17 00:00:00 2001
 From: Sebastian Andrzej Siewior <sebastian%breakpoint.cc@localhost>
 Date: Sat, 10 Sep 2016 19:27:17 +0000
 Subject: [PATCH] sendmail: compile against openssl 1.1.0
 
 Signed-off-by: Sebastian Andrzej Siewior <sebastian%breakpoint.cc@localhost>
 ---
  debian/configure.ac |  13 +++--
  sendmail/tls.c      | 165 +++++++++++++++++++++++++++++++++++++++-------------
  2 files changed, 132 insertions(+), 46 deletions(-)
 
 diff --git a/sendmail/tls.c b/sendmail/tls.c
 index 6b0ea25..6a10890 100644
 --- sendmail/tls.c
 +++ sendmail/tls.c
 @@ -60,18 +60,58 @@ static unsigned char dh512_g[] =
  	0x02
  };
  
 +#if OPENSSL_VERSION_NUMBER < 0x10100000
 +
 +static inline int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g)
 +{
 +	/* If the fields p and g in d are NULL, the corresponding input
 +	 * parameters MUST be non-NULL.  q may remain NULL.
 +	 */
 +	if ((dh->p == NULL && p == NULL)
 +	    || (dh->g == NULL && g == NULL))
 +		return 0;
 +
 +	if (p != NULL) {
 +		BN_free(dh->p);
 +		dh->p = p;
 +	}
 +	if (q != NULL) {
 +		BN_free(dh->q);
 +		dh->q = q;
 +	}
 +	if (g != NULL) {
 +		BN_free(dh->g);
 +		dh->g = g;
 +	}
 +
 +	if (q != NULL) {
 +		dh->length = BN_num_bits(q);
 +	}
 +
 +	return 1;
 +}
 +#endif
 +
  static DH *
  get_dh512()
  {
  	DH *dh = NULL;
 -
 -	if ((dh = DH_new()) == NULL)
 -		return NULL;
 -	dh->p = BN_bin2bn(dh512_p, sizeof(dh512_p), NULL);
 -	dh->g = BN_bin2bn(dh512_g, sizeof(dh512_g), NULL);
 -	if ((dh->p == NULL) || (dh->g == NULL))
 -		return NULL;
 +	BIGNUM *p;
 +	BIGNUM *g;
 +
 +	dh = DH_new();
 +	p = BN_bin2bn(dh512_p, sizeof(dh512_p), NULL);
 +	g = BN_bin2bn(dh512_g, sizeof(dh512_g), NULL);
 +	if (!dh || !p || !g)
 +		goto err;
 +	if (!DH_set0_pqg(dh, p, NULL, g))
 +		goto err;
  	return dh;
 +err:
 +	DH_free(dh);
 +	BN_free(p);
 +	BN_free(g);
 +	return NULL;
  }
  
  #  if 0
 @@ -117,17 +157,22 @@ get_dh2048()
  		};
  	static unsigned char dh2048_g[]={ 0x02, };
  	DH *dh;
 -
 -	if ((dh=DH_new()) == NULL)
 -		return(NULL);
 -	dh->p=BN_bin2bn(dh2048_p,sizeof(dh2048_p),NULL);
 -	dh->g=BN_bin2bn(dh2048_g,sizeof(dh2048_g),NULL);
 -	if ((dh->p == NULL) || (dh->g == NULL))
 -	{
 -		DH_free(dh);
 -		return(NULL);
 -	}
 +	BIGNUM *p;
 +	BIGNUM *g;
 +
 +	dh = DH_new();
 +	p = BN_bin2bn(dh2048_p,sizeof(dh2048_p),NULL);
 +	g = BN_bin2bn(dh2048_g,sizeof(dh2048_g),NULL);
 +	if (!dh || !p || !g)
 +		goto err;
 +	if (!DH_set0_pqg(dh, p, NULL, g))
 +		goto err;
  	return(dh);
 +err:
 +	DH_free(dh);
 +	BN_free(p);
 +	BN_free(g);
 +	return NULL;
  }
  # endif /* !NO_DH */
  
 @@ -926,7 +971,7 @@ inittls(ctx, req, options, srv, certfile, keyfile, cacertpath, cacertfile, dhpar
  	{
  		/* get a pointer to the current certificate validation store */
  		store = SSL_CTX_get_cert_store(*ctx);	/* does not fail */
 -		crl_file = BIO_new(BIO_s_file_internal());
 +		crl_file = BIO_new(BIO_s_file());
  		if (crl_file != NULL)
  		{
  			if (BIO_read_filename(crl_file, CRLFile) >= 0)
 @@ -1000,26 +1045,41 @@ inittls(ctx, req, options, srv, certfile, keyfile, cacertpath, cacertfile, dhpar
  	**  maybe we should do it only on demand...
  	*/
  
 -	if (bitset(TLS_I_RSA_TMP, req)
  #  if SM_CONF_SHM
 -	    && ShmId != SM_SHM_NO_ID &&
 -	    (rsa_tmp = RSA_generate_key(RSA_KEYLENGTH, RSA_F4, NULL,
 -					NULL)) == NULL
 -#  else /* SM_CONF_SHM */
 -	    && 0	/* no shared memory: no need to generate key now */
 -#  endif /* SM_CONF_SHM */
 -	   )
 +	if (bitset(TLS_I_RSA_TMP, req)
 +	    && ShmId != SM_SHM_NO_ID)
  	{
 -		if (LogLevel > 7)
 +		BIGNUM *bn;
 +
 +		bn = BN_new();
 +		rsa_tmp = RSA_new();
 +		if (!bn || !rsa_tmp || !BN_set_word(bn, RSA_F4)) {
 +			RSA_free(rsa_tmp);
 +			rsa_tmp = NULL;
 +		}
 +		if (rsa_tmp)
  		{
 -			sm_syslog(LOG_WARNING, NOQID,
 -				  "STARTTLS=%s, error: RSA_generate_key failed",
 -				  who);
 -			if (LogLevel > 9)
 -				tlslogerr(LOG_WARNING, who);
 +			if (!RSA_generate_key_ex(rsa_tmp, RSA_KEYLENGTH, bn, NULL))
 +			{
 +				RSA_free(rsa_tmp);
 +				rsa_tmp = NULL;
 +			}
 +		}
 +		BN_free(bn);
 +		if (!rsa_tmp)
 +		{
 +			if (LogLevel > 7)
 +			{
 +				sm_syslog(LOG_WARNING, NOQID,
 +					  "STARTTLS=%s, error: RSA_generate_key failed",
 +					  who);
 +				if (LogLevel > 9)
 +					tlslogerr(LOG_WARNING, who);
 +			}
 +			return false;
  		}
 -		return false;
  	}
 +#  endif /* SM_CONF_SHM */
  # endif /* !TLS_NO_RSA */
  
  	/*
 @@ -1210,9 +1270,15 @@ inittls(ctx, req, options, srv, certfile, keyfile, cacertpath, cacertfile, dhpar
  				sm_dprintf("inittls: Generating %d bit DH parameters\n", bits);
  
  			/* this takes a while! */
 -			dsa = DSA_generate_parameters(bits, NULL, 0, NULL,
 -						      NULL, 0, NULL);
 -			dh = DSA_dup_DH(dsa);
 +			dsa = DSA_new();
 +			if (dsa) {
 +				int r;
 +
 +				r = DSA_generate_parameters_ex(dsa, bits, NULL, 0,
 +							    NULL, NULL, NULL);
 +				if (r != 0)
 +					dh = DSA_dup_DH(dsa);
 +			}
  			DSA_free(dsa);
  		}
  		else if (dh == NULL && bitset(TLS_I_DHFIXED, req))
 @@ -1733,6 +1799,9 @@ tmp_rsa_key(s, export, keylength)
  	int export;
  	int keylength;
  {
 +	BIGNUM *bn;
 +	int ret;
 +
  #   if SM_CONF_SHM
  	extern int ShmId;
  	extern int *PRSATmpCnt;
 @@ -1742,10 +1811,22 @@ tmp_rsa_key(s, export, keylength)
  		return rsa_tmp;
  #   endif /* SM_CONF_SHM */
  
 -	if (rsa_tmp != NULL)
 -		RSA_free(rsa_tmp);
 -	rsa_tmp = RSA_generate_key(RSA_KEYLENGTH, RSA_F4, NULL, NULL);
 -	if (rsa_tmp == NULL)
 +	if (rsa_tmp == NULL) {
 +		rsa_tmp = RSA_new();
 +		if (!rsa_tmp)
 +			return NULL;
 +	}
 +
 +	bn = BN_new();
 +	if (!bn)
 +		return NULL;
 +	if (!BN_set_word(bn, RSA_F4)) {
 +		BN_free(bn);
 +		return NULL;
 +	}
 +	ret = RSA_generate_key_ex(rsa_tmp, RSA_KEYLENGTH, bn, NULL);
 +	BN_free(bn);
 +	if (!ret)
  	{
  		if (LogLevel > 0)
  			sm_syslog(LOG_ERR, NOQID,
 @@ -1971,9 +2052,9 @@ x509_verify_cb(ok, ctx)
  	{
  		if (LogLevel > 13)
  			tls_verify_log(ok, ctx, "x509");
 -		if (ctx->error == X509_V_ERR_UNABLE_TO_GET_CRL)
 +		if (X509_STORE_CTX_get_error(ctx) == X509_V_ERR_UNABLE_TO_GET_CRL)
  		{
 -			ctx->error = 0;
 +			X509_STORE_CTX_set_error(ctx, 0);
  			return 1;	/* override it */
  		}
  	}
 -- 
 2.9.3
 
 
 --ctP54qlpMx3WjD+/--
 


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