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From eb471de8f26e0367dd08d299d2252fa8b2b958a9 Mon Sep 17 00:00:00 2001
From: Emilio <emilio.campos@zevenet.com>
Date: Mon, 17 Jul 2017 09:41:32 +0200
Subject: [PATCH] [Improvement] Added support to compile pound with openssl
 1.0.2

Signed-off-by: Emilio <emilio.campos@zevenet.com>

	new file:   dh2048.h
	modified:   svc.c

Patch was downloaded from 3rd-party repo:
https://github.com/zevenet/pound/commit/eb471de8f26e0367dd08d299d2252fa8b2b958a9

This repo was announced on upstream mailinglist:
http://www.apsis.ch/pound/pound_list/archive/2017/2017-07/1500287626000#1500287626000

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
---
 dh2048.h | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 svc.c    | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+)
 create mode 100644 dh2048.h

diff --git a/dh2048.h b/dh2048.h
new file mode 100644
index 0000000..79c693c
--- /dev/null
+++ b/dh2048.h
@@ -0,0 +1,53 @@
+#ifndef HEADER_DH_H
+# include <openssl/dh.h>
+#endif
+
+DH *get_dh2048()
+{
+    static unsigned char dhp_2048[] = {
+	0xBF, 0x6C, 0xC6, 0xBD, 0xEA, 0x10, 0x84, 0x59, 0x40, 0xC2, 
+	0xC6, 0xA2, 0x9B, 0x19, 0xD3, 0x2E, 0x2F, 0xAB, 0xE6, 0xE4, 
+	0x1E, 0x91, 0x0D, 0x59, 0xDC, 0x96, 0x3F, 0x6E, 0x65, 0x38, 
+	0xB9, 0xBE, 0xBB, 0x8F, 0xDF, 0x73, 0xAC, 0xAC, 0xB3, 0x2F, 
+	0xA7, 0x02, 0x0B, 0x87, 0xB7, 0x3F, 0x3A, 0x42, 0x8A, 0x94, 
+	0xDD, 0xEC, 0x33, 0xA4, 0x25, 0xB1, 0xBF, 0x84, 0x91, 0x87, 
+	0xD8, 0x1C, 0x42, 0xB9, 0x8E, 0x00, 0x1F, 0x49, 0xED, 0x57, 
+	0xA4, 0x48, 0xB0, 0xCC, 0xD8, 0xB8, 0x83, 0xCA, 0x3E, 0xDF, 
+	0xA2, 0xF2, 0x07, 0x71, 0x71, 0x18, 0x1F, 0x50, 0x45, 0x3A, 
+	0x66, 0x04, 0x7F, 0x15, 0xB2, 0xA8, 0x02, 0x77, 0xCE, 0xC6, 
+	0xF9, 0x7C, 0x63, 0xE4, 0x52, 0x41, 0xFA, 0x62, 0xB9, 0x0D, 
+	0xDC, 0x08, 0x62, 0xEC, 0x00, 0xAB, 0xB0, 0xF7, 0x79, 0x48, 
+	0x75, 0x22, 0x85, 0xCC, 0x67, 0x3C, 0xEA, 0x09, 0x32, 0xAC, 
+	0x30, 0xED, 0x1E, 0x67, 0xDC, 0x74, 0xF8, 0xD9, 0xC3, 0xD0, 
+	0xA0, 0x60, 0x4D, 0xCE, 0x52, 0xBC, 0xA3, 0xE5, 0x18, 0x7B, 
+	0x0B, 0xC8, 0xCE, 0x70, 0xA2, 0xC8, 0x21, 0xCA, 0xCE, 0xA5, 
+	0xD4, 0xCB, 0x85, 0xFC, 0xC7, 0x07, 0x5C, 0x05, 0x87, 0xFC, 
+	0x2F, 0x67, 0x4D, 0x2D, 0x4F, 0xA4, 0xEE, 0x63, 0x98, 0x49, 
+	0xE4, 0x2E, 0xD7, 0x3F, 0x7D, 0x69, 0x68, 0x0A, 0xA2, 0x3E, 
+	0x5A, 0x04, 0xD4, 0xDD, 0xBB, 0xC7, 0xB4, 0x34, 0xB7, 0x21, 
+	0xD3, 0xAC, 0x99, 0xD7, 0x87, 0x45, 0x5E, 0x18, 0x68, 0x16, 
+	0x3A, 0xAF, 0xE2, 0x04, 0x57, 0xB8, 0x6A, 0xB8, 0x2F, 0x75, 
+	0xD5, 0x79, 0x96, 0x60, 0x8D, 0xD1, 0xCC, 0xD1, 0x33, 0x85, 
+	0x53, 0x88, 0x87, 0x34, 0xA6, 0x4B, 0x49, 0x24, 0x53, 0xD6, 
+	0xF1, 0x1E, 0x4E, 0x98, 0x4D, 0x6B, 0x44, 0x31, 0x94, 0xFF, 
+	0x46, 0xC2, 0x38, 0x2E, 0xEA, 0xBB
+    };
+    static unsigned char dhg_2048[] = {
+	0x05
+    };
+    DH *dh = DH_new();
+    BIGNUM *dhp_bn, *dhg_bn;
+
+    if (dh == NULL)
+        return NULL;
+    dhp_bn = BN_bin2bn(dhp_2048, sizeof (dhp_2048), NULL);
+    dhg_bn = BN_bin2bn(dhg_2048, sizeof (dhg_2048), NULL);
+    if (dhp_bn == NULL || dhg_bn == NULL
+            || !DH_set0_pqg(dh, dhp_bn, NULL, dhg_bn)) {
+        DH_free(dh);
+        BN_free(dhp_bn);
+        BN_free(dhg_bn);
+        return NULL;
+    }
+    return dh;
+}
diff --git a/svc.c b/svc.c
index 1341397..758dfbd 100644
--- a/svc.c
+++ b/svc.c
@@ -1512,6 +1512,39 @@ do_RSAgen(void)
     return;
 }
 
+
+#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
+
+
 #include    "dh512.h"
 
 #if DH_LEN == 1024