107 lines
2.7 KiB
Diff
107 lines
2.7 KiB
Diff
--- a/openslp/common/slp_crypto.c
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+++ b/openslp/common/slp_crypto.c
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@@ -53,6 +53,80 @@
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#include "slp_crypto.h"
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#include "slp_message.h"
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+/* 1.1.0 -> 1.0.x compatibility layer
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+ * See https://wiki.openssl.org/index.php/OpenSSL_1.1.0_Changes#Compatibility_Layer
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+ * for details and additiona compatibility routines if needed in the future.
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+ */
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+#if OPENSSL_VERSION_NUMBER < 0x10100000L
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+static void DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g)
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+{
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+ if (p != NULL)
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+ *p = d->p;
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+ if (q != NULL)
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+ *q = d->q;
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+ if (g != NULL)
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+ *g = d->g;
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+}
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+
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+static int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g)
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+{
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+ /* If the fields p, q and g in d are NULL, the corresponding input
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+ * parameters MUST be non-NULL.
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+ */
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+ if ((d->p == NULL && p == NULL)
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+ || (d->q == NULL && q == NULL)
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+ || (d->g == NULL && g == NULL))
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+ return 0;
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+
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+ if (p != NULL)
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+ {
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+ BN_free(d->p);
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+ d->p = p;
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+ }
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+ if (q != NULL)
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+ {
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+ BN_free(d->q);
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+ d->q = q;
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+ }
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+ if (g != NULL)
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+ {
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+ BN_free(d->g);
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+ d->g = g;
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+ }
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+ return 1;
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+}
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+
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+static void DSA_get0_key(const DSA *d, const BIGNUM **pub_key, const BIGNUM **priv_key)
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+{
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+ if (pub_key != NULL)
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+ *pub_key = d->pub_key;
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+ if (priv_key != NULL)
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+ *priv_key = d->priv_key;
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+}
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+
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+static int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key)
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+{
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+ /* If the field pub_key in d is NULL, the corresponding input
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+ * parameters MUST be non-NULL. The priv_key field may
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+ * be left NULL.
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+ */
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+ if (d->pub_key == NULL && pub_key == NULL)
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+ return 0;
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+
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+ if (pub_key != NULL)
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+ {
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+ BN_free(d->pub_key);
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+ d->pub_key = pub_key;
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+ }
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+ if (priv_key != NULL)
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+ {
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+ BN_free(d->priv_key);
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+ d->priv_key = priv_key;
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+ }
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+ return 1;
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+}
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+#endif
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+
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/** Generate a SHA1 digest for the specified block data.
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*
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* @param[in] data - The data block to be hashed.
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@@ -88,11 +162,17 @@
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result = DSA_new();
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if (result)
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{
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- result->p = BN_dup(dsa->p);
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- result->q = BN_dup(dsa->q);
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- result->g = BN_dup(dsa->g);
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- result->priv_key = BN_dup(dsa->priv_key);
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- result->pub_key = BN_dup(dsa->pub_key);
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+ const BIGNUM *p, *q, *g;
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+ const BIGNUM *priv_key, *pub_key;
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+
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+ DSA_get0_pqg(dsa, &p, &q, &g);
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+ DSA_get0_key(dsa, &pub_key, &priv_key);
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+
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+ /* would be nice to check return values,
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+ * but original code didn't do that either...
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+ */
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+ DSA_set0_pqg(result, BN_dup(p), BN_dup(q), BN_dup(g));
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+ DSA_set0_key(result, BN_dup(pub_key), BN_dup(priv_key));
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}
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return result;
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}
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