On 2018-11-15 08:09, Jean-Marc Pigeon via blfs-dev wrote:
Hello,


As reported earlier, I am not able to recompile
sendmail-8.15.2.

It is not fully proved but I have strong indication
it is caused by openssl-1.1.[0i,1]

Looking about this, I noticed
LFS is openssl-1.1.1
BLFS is openssl-1.0.2p
(LFS 2018-11-09, BLFS 2018-11-13)

Is this done on purpose? (I am doubtful about
it)

Trouble ahead compiling sendmail (and other?)
using opessl-1.1.1?

Comments?, something I am overlooking?

Here is a patch I've used with Sendmail 8.15.2 over a year ago. This uses OpenSSL 1.1.0

From 02edb8d94682fcf13a7e98618294e06f728e66e6 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <[email protected]>
Date: Sat, 10 Sep 2016 19:27:17 +0000
Subject: [PATCH] sendmail: compile against openssl 1.1.0

Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
---
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
--- a/sendmail/tls.c
+++ b/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


Sincerely,

William Harrington
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