Bug#828540: sendmail: FTBFS with openssl 1.1.0
On 2016-09-12 17:15:15 [+0200], Andreas Beckmann wrote:
> Many thanks, so let's just try it :-)
>
> It FTBFS on the non-linux architectures:
> https://buildd.debian.org/status/package.php?p=sendmail&suite=unstable
>
> It's this part of your patch:
Sorry for that. V2 attached. I could throw on a freebsd-* porter box
first if you want me to.
Sebastian
>From 02edb8d94682fcf13a7e98618294e06f728e66e6 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
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>
---
debian/configure.ac | 13 +++--
sendmail/tls.c | 165 +++++++++++++++++++++++++++++++++++++++-------------
2 files changed, 132 insertions(+), 46 deletions(-)
diff --git a/debian/configure.ac b/debian/configure.ac
index fb73d89..3c16c82 100644
--- a/debian/configure.ac
+++ b/debian/configure.ac
@@ -1605,11 +1605,16 @@ if test $sm_enable_tls != no; then
,[sm_have_tls=no])
if test $ac_cv_header_openssl_ssl_h = yes; then
- AC_CHECK_LIB(ssl, SSL_library_init,
- [sm_have_tls=yes]
- ,[sm_have_tls=no]
- ,[-lcrypto])
+ tmp_libs="$LIBS"
+ LIBS="$LIBS -lssl"
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM([[#include <openssl/ssl.h>]],
+ [[SSL_library_init();]])],
+ [sm_have_tls="yes";],
+ [sm_have_tls="no";])
+
+ LIBS=$tmp_libs
if test $sm_have_tls != yes; then
AC_MSG_WARN([Could not find -lssl (libssl-dev)])
fi;
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
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