diff options
Diffstat (limited to 'lib/dns/openssl_shim.c')
| -rw-r--r-- | lib/dns/openssl_shim.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/lib/dns/openssl_shim.c b/lib/dns/openssl_shim.c new file mode 100644 index 0000000..816813a --- /dev/null +++ b/lib/dns/openssl_shim.c @@ -0,0 +1,252 @@ +/* + * Copyright (C) Internet Systems Consortium, Inc. ("ISC") + * + * SPDX-License-Identifier: MPL-2.0 + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, you can obtain one at https://mozilla.org/MPL/2.0/. + * + * See the COPYRIGHT file distributed with this work for additional + * information regarding copyright ownership. + */ + +#include "openssl_shim.h" + +#if !HAVE_RSA_SET0_KEY && OPENSSL_VERSION_NUMBER < 0x30000000L +/* From OpenSSL 1.1.0 */ +int +RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) { + /* + * If the fields n and e in r are NULL, the corresponding input + * parameters MUST be non-NULL for n and e. d may be + * left NULL (in case only the public key is used). + */ + if ((r->n == NULL && n == NULL) || (r->e == NULL && e == NULL)) { + return (0); + } + + if (n != NULL) { + BN_free(r->n); + r->n = n; + } + if (e != NULL) { + BN_free(r->e); + r->e = e; + } + if (d != NULL) { + BN_clear_free(r->d); + r->d = d; + } + + return (1); +} + +int +RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q) { + /* + * If the fields p and q in r are NULL, the corresponding input + * parameters MUST be non-NULL. + */ + if ((r->p == NULL && p == NULL) || (r->q == NULL && q == NULL)) { + return (0); + } + + if (p != NULL) { + BN_clear_free(r->p); + r->p = p; + } + if (q != NULL) { + BN_clear_free(r->q); + r->q = q; + } + + return (1); +} + +int +RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp) { + /* + * If the fields dmp1, dmq1 and iqmp in r are NULL, the + * corresponding input parameters MUST be non-NULL. + */ + if ((r->dmp1 == NULL && dmp1 == NULL) || + (r->dmq1 == NULL && dmq1 == NULL) || + (r->iqmp == NULL && iqmp == NULL)) + { + return (0); + } + + if (dmp1 != NULL) { + BN_clear_free(r->dmp1); + r->dmp1 = dmp1; + } + if (dmq1 != NULL) { + BN_clear_free(r->dmq1); + r->dmq1 = dmq1; + } + if (iqmp != NULL) { + BN_clear_free(r->iqmp); + r->iqmp = iqmp; + } + + return (1); +} + +void +RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, + const BIGNUM **d) { + if (n != NULL) { + *n = r->n; + } + if (e != NULL) { + *e = r->e; + } + if (d != NULL) { + *d = r->d; + } +} + +void +RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q) { + if (p != NULL) { + *p = r->p; + } + if (q != NULL) { + *q = r->q; + } +} + +void +RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1, + const BIGNUM **iqmp) { + if (dmp1 != NULL) { + *dmp1 = r->dmp1; + } + if (dmq1 != NULL) { + *dmq1 = r->dmq1; + } + if (iqmp != NULL) { + *iqmp = r->iqmp; + } +} + +int +RSA_test_flags(const RSA *r, int flags) { + return (r->flags & flags); +} +#endif /* !HAVE_RSA_SET0_KEY && OPENSSL_VERSION_NUMBER < 0x30000000L */ + +#if !HAVE_ECDSA_SIG_GET0 +/* From OpenSSL 1.1 */ +void +ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) { + if (pr != NULL) { + *pr = sig->r; + } + if (ps != NULL) { + *ps = sig->s; + } +} + +int +ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s) { + if (r == NULL || s == NULL) { + return (0); + } + + BN_clear_free(sig->r); + BN_clear_free(sig->s); + sig->r = r; + sig->s = s; + + return (1); +} +#endif /* !HAVE_ECDSA_SIG_GET0 */ + +#if !HAVE_DH_GET0_KEY && OPENSSL_VERSION_NUMBER < 0x30000000L +/* + * DH_get0_key, DH_set0_key, DH_get0_pqg and DH_set0_pqg + * are from OpenSSL 1.1.0. + */ +void +DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key) { + if (pub_key != NULL) { + *pub_key = dh->pub_key; + } + if (priv_key != NULL) { + *priv_key = dh->priv_key; + } +} + +int +DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key) { + if (pub_key != NULL) { + BN_free(dh->pub_key); + dh->pub_key = pub_key; + } + + if (priv_key != NULL) { + BN_free(dh->priv_key); + dh->priv_key = priv_key; + } + + return (1); +} + +void +DH_get0_pqg(const DH *dh, const BIGNUM **p, const BIGNUM **q, + const BIGNUM **g) { + if (p != NULL) { + *p = dh->p; + } + if (q != NULL) { + *q = dh->q; + } + if (g != NULL) { + *g = dh->g; + } +} + +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 /* !HAVE_DH_GET0_KEY && OPENSSL_VERSION_NUMBER < 0x30000000L */ + +#if !HAVE_ERR_GET_ERROR_ALL +static const char err_empty_string = '\0'; + +unsigned long +ERR_get_error_all(const char **file, int *line, const char **func, + const char **data, int *flags) { + if (func != NULL) { + *func = &err_empty_string; + } + return (ERR_get_error_line_data(file, line, data, flags)); +} +#endif /* if !HAVE_ERR_GET_ERROR_ALL */ |