#include <openssl/bn.h>
#include "ssl_locl.h"
+static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex);
+
int SSL_get_ex_data_X509_STORE_CTX_idx(void)
{
static volatile int ssl_x509_store_ctx_idx= -1;
ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);
ret->references=1;
ssl_cert_set_default_md(ret);
+ ret->sec_cb = ssl_security_default_callback;
+ ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL;
+ ret->sec_ex = NULL;
return(ret);
}
}
}
ret->dh_tmp_cb = cert->dh_tmp_cb;
+ ret->dh_tmp_auto = cert->dh_tmp_auto;
#endif
#ifndef OPENSSL_NO_ECDH
rpk->privatekey = cpk->privatekey;
CRYPTO_add(&cpk->privatekey->references, 1,
CRYPTO_LOCK_EVP_PKEY);
-
- switch(i)
- {
- /* If there was anything special to do for
- * certain types of keys, we'd do it here.
- * (Nothing at the moment, I think.) */
-
- case SSL_PKEY_RSA_ENC:
- case SSL_PKEY_RSA_SIGN:
- /* We have an RSA key. */
- break;
-
- case SSL_PKEY_DSA_SIGN:
- /* We have a DSA key. */
- break;
-
- case SSL_PKEY_DH_RSA:
- case SSL_PKEY_DH_DSA:
- /* We have a DH key. */
- break;
-
- case SSL_PKEY_ECC:
- /* We have an ECC key */
- break;
-
- default:
- /* Can't happen. */
- SSLerr(SSL_F_SSL_CERT_DUP, SSL_R_LIBRARY_BUG);
- }
}
if (cpk->chain)
{
- int j;
- rpk->chain = sk_X509_dup(cpk->chain);
+ rpk->chain = X509_chain_up_ref(cpk->chain);
if (!rpk->chain)
{
SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE);
goto err;
}
- for (j = 0; j < sk_X509_num(rpk->chain); j++)
- {
- X509 *x = sk_X509_value(rpk->chain, j);
- CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
- }
}
rpk->valid_flags = 0;
- if (cert->pkeys[i].authz != NULL)
+#ifndef OPENSSL_NO_TLSEXT
+ if (cert->pkeys[i].serverinfo != NULL)
{
/* Just copy everything. */
- ret->pkeys[i].authz_length =
- cert->pkeys[i].authz_length;
- ret->pkeys[i].authz =
- OPENSSL_malloc(ret->pkeys[i].authz_length);
- if (ret->pkeys[i].authz == NULL)
+ ret->pkeys[i].serverinfo =
+ OPENSSL_malloc(cert->pkeys[i].serverinfo_length);
+ if (ret->pkeys[i].serverinfo == NULL)
{
SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE);
- return(NULL);
+ goto err;
}
- memcpy(ret->pkeys[i].authz,
- cert->pkeys[i].authz,
- cert->pkeys[i].authz_length);
+ ret->pkeys[i].serverinfo_length =
+ cert->pkeys[i].serverinfo_length;
+ memcpy(ret->pkeys[i].serverinfo,
+ cert->pkeys[i].serverinfo,
+ cert->pkeys[i].serverinfo_length);
}
+#endif
}
ret->references=1;
/* Peer sigalgs set to NULL as we get these from handshake too */
ret->peer_sigalgs = NULL;
ret->peer_sigalgslen = 0;
- /* Configure sigalgs however we copy across */
+ /* Configured sigalgs however we copy across */
+
if (cert->conf_sigalgs)
{
- ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen
- * sizeof(TLS_SIGALGS));
+ ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen);
if (!ret->conf_sigalgs)
goto err;
memcpy(ret->conf_sigalgs, cert->conf_sigalgs,
- cert->conf_sigalgslen * sizeof(TLS_SIGALGS));
+ cert->conf_sigalgslen);
ret->conf_sigalgslen = cert->conf_sigalgslen;
}
else
ret->conf_sigalgs = NULL;
+
+ if (cert->client_sigalgs)
+ {
+ ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen);
+ if (!ret->client_sigalgs)
+ goto err;
+ memcpy(ret->client_sigalgs, cert->client_sigalgs,
+ cert->client_sigalgslen);
+ ret->client_sigalgslen = cert->client_sigalgslen;
+ }
+ else
+ ret->client_sigalgs = NULL;
/* Shared sigalgs also NULL */
ret->shared_sigalgs = NULL;
+ /* Copy any custom client certificate types */
+ if (cert->ctypes)
+ {
+ ret->ctypes = OPENSSL_malloc(cert->ctype_num);
+ if (!ret->ctypes)
+ goto err;
+ memcpy(ret->ctypes, cert->ctypes, cert->ctype_num);
+ ret->ctype_num = cert->ctype_num;
+ }
ret->cert_flags = cert->cert_flags;
+ ret->cert_cb = cert->cert_cb;
+ ret->cert_cb_arg = cert->cert_cb_arg;
+
+ if (cert->verify_store)
+ {
+ CRYPTO_add(&cert->verify_store->references, 1, CRYPTO_LOCK_X509_STORE);
+ ret->verify_store = cert->verify_store;
+ }
+
+ if (cert->chain_store)
+ {
+ CRYPTO_add(&cert->chain_store->references, 1, CRYPTO_LOCK_X509_STORE);
+ ret->chain_store = cert->chain_store;
+ }
+
+ ret->ciphers_raw = NULL;
+
+ ret->sec_cb = cert->sec_cb;
+ ret->sec_level = cert->sec_level;
+ ret->sec_ex = cert->sec_ex;
+
+#ifndef OPENSSL_NO_TLSEXT
+ if (!custom_exts_copy(&ret->cli_ext, &cert->cli_ext))
+ goto err;
+ if (!custom_exts_copy(&ret->srv_ext, &cert->srv_ext))
+ goto err;
+#endif
+
return(ret);
-#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
err:
-#endif
-#ifndef OPENSSL_NO_RSA
- if (ret->rsa_tmp != NULL)
- RSA_free(ret->rsa_tmp);
-#endif
-#ifndef OPENSSL_NO_DH
- if (ret->dh_tmp != NULL)
- DH_free(ret->dh_tmp);
-#endif
-#ifndef OPENSSL_NO_ECDH
- if (ret->ecdh_tmp != NULL)
- EC_KEY_free(ret->ecdh_tmp);
-#endif
-
- ssl_cert_clear_certs(ret);
+ ssl_cert_free(ret);
return NULL;
}
cpk->chain = NULL;
}
#ifndef OPENSSL_NO_TLSEXT
- if (cpk->authz != NULL)
- OPENSSL_free(cpk->authz);
+ if (cpk->serverinfo)
+ {
+ OPENSSL_free(cpk->serverinfo);
+ cpk->serverinfo = NULL;
+ cpk->serverinfo_length = 0;
+ }
#endif
- cpk->valid_flags = 0;
+ /* Clear all flags apart from explicit sign */
+ cpk->valid_flags &= CERT_PKEY_EXPLICIT_SIGN;
}
}
OPENSSL_free(c->peer_sigalgs);
if (c->conf_sigalgs)
OPENSSL_free(c->conf_sigalgs);
+ if (c->client_sigalgs)
+ OPENSSL_free(c->client_sigalgs);
if (c->shared_sigalgs)
OPENSSL_free(c->shared_sigalgs);
+ if (c->ctypes)
+ OPENSSL_free(c->ctypes);
+ if (c->verify_store)
+ X509_STORE_free(c->verify_store);
+ if (c->chain_store)
+ X509_STORE_free(c->chain_store);
+ if (c->ciphers_raw)
+ OPENSSL_free(c->ciphers_raw);
+#ifndef OPENSSL_NO_TLSEXT
+ custom_exts_free(&c->cli_ext);
+ custom_exts_free(&c->srv_ext);
+#endif
OPENSSL_free(c);
}
return(1);
}
-int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain)
+int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain)
{
- CERT_PKEY *cpk = c->key;
+ int i, r;
+ CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key;
if (!cpk)
return 0;
if (cpk->chain)
sk_X509_pop_free(cpk->chain, X509_free);
+ for (i = 0; i < sk_X509_num(chain); i++)
+ {
+ r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0);
+ if (r != 1)
+ {
+ SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r);
+ return 0;
+ }
+ }
cpk->chain = chain;
return 1;
}
-int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain)
+int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain)
{
STACK_OF(X509) *dchain;
- X509 *x;
- int i;
if (!chain)
- return ssl_cert_set0_chain(c, NULL);
- dchain = sk_X509_dup(chain);
+ return ssl_cert_set0_chain(s, ctx, NULL);
+ dchain = X509_chain_up_ref(chain);
if (!dchain)
return 0;
- for (i = 0; i < sk_X509_num(dchain); i++)
- {
- x = sk_X509_value(dchain, i);
- CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
- }
- if (!ssl_cert_set0_chain(c, dchain))
+ if (!ssl_cert_set0_chain(s, ctx, dchain))
{
sk_X509_pop_free(dchain, X509_free);
return 0;
return 1;
}
-int ssl_cert_add0_chain_cert(CERT *c, X509 *x)
+int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x)
{
- CERT_PKEY *cpk = c->key;
+ int r;
+ CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key;
if (!cpk)
return 0;
+ r = ssl_security_cert(s, ctx, x, 0, 0);
+ if (r != 1)
+ {
+ SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r);
+ return 0;
+ }
if (!cpk->chain)
cpk->chain = sk_X509_new_null();
if (!cpk->chain || !sk_X509_push(cpk->chain, x))
return 1;
}
-int ssl_cert_add1_chain_cert(CERT *c, X509 *x)
+int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x)
{
- if (!ssl_cert_add0_chain_cert(c, x))
+ if (!ssl_cert_add0_chain_cert(s, ctx, x))
return 0;
CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
return 1;
}
+int ssl_cert_select_current(CERT *c, X509 *x)
+ {
+ int i;
+ if (x == NULL)
+ return 0;
+ for (i = 0; i < SSL_PKEY_NUM; i++)
+ {
+ CERT_PKEY *cpk = c->pkeys + i;
+ if (cpk->x509 == x && cpk->privatekey)
+ {
+ c->key = cpk;
+ return 1;
+ }
+ }
+
+ for (i = 0; i < SSL_PKEY_NUM; i++)
+ {
+ CERT_PKEY *cpk = c->pkeys + i;
+ if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x))
+ {
+ c->key = cpk;
+ return 1;
+ }
+ }
+ return 0;
+ }
+
+int ssl_cert_set_current(CERT *c, long op)
+ {
+ int i, idx;
+ if (!c)
+ return 0;
+ if (op == SSL_CERT_SET_FIRST)
+ idx = 0;
+ else if (op == SSL_CERT_SET_NEXT)
+ {
+ idx = (int)(c->key - c->pkeys + 1);
+ if (idx >= SSL_PKEY_NUM)
+ return 0;
+ }
+ else
+ return 0;
+ for (i = idx; i < SSL_PKEY_NUM; i++)
+ {
+ CERT_PKEY *cpk = c->pkeys + i;
+ if (cpk->x509 && cpk->privatekey)
+ {
+ c->key = cpk;
+ return 1;
+ }
+ }
+ return 0;
+ }
+
+void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg)
+ {
+ c->cert_cb = cb;
+ c->cert_cb_arg = arg;
+ }
+
SESS_CERT *ssl_sess_cert_new(void)
{
SESS_CERT *ret;
{
X509 *x;
int i;
+ X509_STORE *verify_store;
X509_STORE_CTX ctx;
+ if (s->cert->verify_store)
+ verify_store = s->cert->verify_store;
+ else
+ verify_store = s->ctx->cert_store;
+
if ((sk == NULL) || (sk_X509_num(sk) == 0))
return(0);
x=sk_X509_value(sk,0);
- if(!X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk))
+ if(!X509_STORE_CTX_init(&ctx,verify_store,x,sk))
{
SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,ERR_R_X509_LIB);
return(0);
}
+ /* Set suite B flags if needed */
+ X509_STORE_CTX_set_flags(&ctx, tls1_suiteb(s));
#if 0
if (SSL_get_verify_depth(s) >= 0)
X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
{
#ifndef OPENSSL_NO_X509_VERIFY
i=X509_verify_cert(&ctx);
+#if 0
+ /* Dummy error calls so mkerr generates them */
+ SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_EE_KEY_TOO_SMALL);
+ SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_CA_KEY_TOO_SMALL);
+ SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_CA_MD_TOO_WEAK);
+#endif
+ if (i > 0)
+ i = ssl_security_cert_chain(s, ctx.chain, NULL, 1);
#else
i=0;
ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l)
{
BUF_MEM *buf = s->init_buf;
- int no_chain;
int i;
X509 *x;
STACK_OF(X509) *extra_certs;
+ X509_STORE *chain_store;
- if (cpk)
- x = cpk->x509;
- else
- x = NULL;
+ /* TLSv1 sends a chain with nothing in it, instead of an alert */
+ if (!BUF_MEM_grow_clean(buf,10))
+ {
+ SSLerr(SSL_F_SSL_ADD_CERT_CHAIN,ERR_R_BUF_LIB);
+ return 0;
+ }
+
+ if (!cpk || !cpk->x509)
+ return 1;
+
+ x = cpk->x509;
/* If we have a certificate specific chain use it, else use
* parent ctx.
*/
- if (cpk && cpk->chain)
+ if (cpk->chain)
extra_certs = cpk->chain;
else
extra_certs = s->ctx->extra_certs;
if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs)
- no_chain = 1;
+ chain_store = NULL;
+ else if (s->cert->chain_store)
+ chain_store = s->cert->chain_store;
else
- no_chain = 0;
+ chain_store = s->ctx->cert_store;
- /* TLSv1 sends a chain with nothing in it, instead of an alert */
- if (!BUF_MEM_grow_clean(buf,10))
+ if (chain_store)
{
- SSLerr(SSL_F_SSL_ADD_CERT_CHAIN,ERR_R_BUF_LIB);
- return 0;
+ X509_STORE_CTX xs_ctx;
+
+ if (!X509_STORE_CTX_init(&xs_ctx,chain_store,x,NULL))
+ {
+ SSLerr(SSL_F_SSL_ADD_CERT_CHAIN,ERR_R_X509_LIB);
+ return(0);
+ }
+ X509_verify_cert(&xs_ctx);
+ /* Don't leave errors in the queue */
+ ERR_clear_error();
+ i = ssl_security_cert_chain(s, xs_ctx.chain, NULL, 0);
+ if (i != 1)
+ {
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i);
+ return 0;
+ }
+ for (i=0; i < sk_X509_num(xs_ctx.chain); i++)
+ {
+ x = sk_X509_value(xs_ctx.chain, i);
+
+ if (!ssl_add_cert_to_buf(buf, l, x))
+ {
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ return 0;
+ }
+ }
+ X509_STORE_CTX_cleanup(&xs_ctx);
}
- if (x != NULL)
+ else
{
- if (no_chain)
+ i = ssl_security_cert_chain(s, extra_certs, x, 0);
+ if (i != 1)
{
+ SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i);
+ return 0;
+ }
+ if (!ssl_add_cert_to_buf(buf, l, x))
+ return 0;
+ for (i=0; i<sk_X509_num(extra_certs); i++)
+ {
+ x=sk_X509_value(extra_certs,i);
if (!ssl_add_cert_to_buf(buf, l, x))
return 0;
}
- else
- {
- X509_STORE_CTX xs_ctx;
+ }
+ return 1;
+ }
- if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL))
+/* Build a certificate chain for current certificate */
+int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags)
+ {
+ CERT *c = s ? s->cert : ctx->cert;
+ CERT_PKEY *cpk = c->key;
+ X509_STORE *chain_store = NULL;
+ X509_STORE_CTX xs_ctx;
+ STACK_OF(X509) *chain = NULL, *untrusted = NULL;
+ X509 *x;
+ int i, rv = 0;
+ unsigned long error;
+
+ if (!cpk->x509)
+ {
+ SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET);
+ goto err;
+ }
+ /* Rearranging and check the chain: add everything to a store */
+ if (flags & SSL_BUILD_CHAIN_FLAG_CHECK)
+ {
+ chain_store = X509_STORE_new();
+ if (!chain_store)
+ goto err;
+ for (i = 0; i < sk_X509_num(cpk->chain); i++)
+ {
+ x = sk_X509_value(cpk->chain, i);
+ if (!X509_STORE_add_cert(chain_store, x))
{
- SSLerr(SSL_F_SSL_ADD_CERT_CHAIN,ERR_R_X509_LIB);
- return(0);
+ error = ERR_peek_last_error();
+ if (ERR_GET_LIB(error) != ERR_LIB_X509 ||
+ ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE)
+ goto err;
+ ERR_clear_error();
}
- X509_verify_cert(&xs_ctx);
- /* Don't leave errors in the queue */
+ }
+ /* Add EE cert too: it might be self signed */
+ if (!X509_STORE_add_cert(chain_store, cpk->x509))
+ {
+ error = ERR_peek_last_error();
+ if (ERR_GET_LIB(error) != ERR_LIB_X509 ||
+ ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE)
+ goto err;
ERR_clear_error();
- for (i=0; i < sk_X509_num(xs_ctx.chain); i++)
- {
- x = sk_X509_value(xs_ctx.chain, i);
+ }
+ }
+ else
+ {
+ if (c->chain_store)
+ chain_store = c->chain_store;
+ else if (s)
+ chain_store = s->ctx->cert_store;
+ else
+ chain_store = ctx->cert_store;
+
+ if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED)
+ untrusted = cpk->chain;
+ }
+
+ if (!X509_STORE_CTX_init(&xs_ctx, chain_store, cpk->x509, untrusted))
+ {
+ SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB);
+ goto err;
+ }
+ /* Set suite B flags if needed */
+ X509_STORE_CTX_set_flags(&xs_ctx, c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS);
+
+ i = X509_verify_cert(&xs_ctx);
+ if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR)
+ {
+ if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR)
+ ERR_clear_error();
+ i = 1;
+ rv = 2;
+ }
+ if (i > 0)
+ chain = X509_STORE_CTX_get1_chain(&xs_ctx);
+ if (i <= 0)
+ {
+ SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED);
+ i = X509_STORE_CTX_get_error(&xs_ctx);
+ ERR_add_error_data(2, "Verify error:",
+ X509_verify_cert_error_string(i));
- if (!ssl_add_cert_to_buf(buf, l, x))
- {
- X509_STORE_CTX_cleanup(&xs_ctx);
- return 0;
- }
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ goto err;
+ }
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ /* Remove EE certificate from chain */
+ x = sk_X509_shift(chain);
+ X509_free(x);
+ if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT)
+ {
+ if (sk_X509_num(chain) > 0)
+ {
+ /* See if last cert is self signed */
+ x = sk_X509_value(chain, sk_X509_num(chain) - 1);
+ X509_check_purpose(x, -1, 0);
+ if (x->ex_flags & EXFLAG_SS)
+ {
+ x = sk_X509_pop(chain);
+ X509_free(x);
}
- X509_STORE_CTX_cleanup(&xs_ctx);
}
}
- for (i=0; i<sk_X509_num(extra_certs); i++)
+ /* Check security level of all CA certificates: EE will have been
+ * checked already.
+ */
+ for (i = 0; i < sk_X509_num(chain); i++)
{
- x=sk_X509_value(extra_certs,i);
- if (!ssl_add_cert_to_buf(buf, l, x))
+ x = sk_X509_value(chain, i);
+ rv = ssl_security_cert(s, ctx, x, 0, 0);
+ if (rv != 1)
+ {
+ SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv);
+ sk_X509_pop_free(chain, X509_free);
+ rv = 0;
+ goto err;
+ }
+ }
+ if (cpk->chain)
+ sk_X509_pop_free(cpk->chain, X509_free);
+ cpk->chain = chain;
+ if (rv == 0)
+ rv = 1;
+ err:
+ if (flags & SSL_BUILD_CHAIN_FLAG_CHECK)
+ X509_STORE_free(chain_store);
+
+ return rv;
+ }
+
+int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref)
+ {
+ X509_STORE **pstore;
+ if (chain)
+ pstore = &c->chain_store;
+ else
+ pstore = &c->verify_store;
+ if (*pstore)
+ X509_STORE_free(*pstore);
+ *pstore = store;
+ if (ref && store)
+ CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE);
+ return 1;
+ }
+
+static int ssl_security_default_callback(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex)
+ {
+ int level, minbits;
+ static const int minbits_table[5] = {80, 112, 128, 192, 256};
+ if (ctx)
+ level = SSL_CTX_get_security_level(ctx);
+ else
+ level = SSL_get_security_level(s);
+ /* Level 0: anything goes */
+ if (level <= 0)
+ return 1;
+ if (level > 5)
+ level = 5;
+ minbits = minbits_table[level - 1];
+ switch (op)
+ {
+ case SSL_SECOP_CIPHER_SUPPORTED:
+ case SSL_SECOP_CIPHER_SHARED:
+ case SSL_SECOP_CIPHER_CHECK:
+ {
+ const SSL_CIPHER *c = other;
+ /* No ciphers below security level */
+ if (bits < minbits)
+ return 0;
+ /* No unauthenticated ciphersuites */
+ if (c->algorithm_auth & SSL_aNULL)
+ return 0;
+ /* No MD5 mac ciphersuites */
+ if (c->algorithm_mac & SSL_MD5)
+ return 0;
+ /* SHA1 HMAC is 160 bits of security */
+ if (minbits > 160 && c->algorithm_mac & SSL_SHA1)
+ return 0;
+ /* Level 2: no RC4 */
+ if (level >= 2 && c->algorithm_enc == SSL_RC4)
return 0;
+ /* Level 3: forward secure ciphersuites only */
+ if (level >= 3 && !(c->algorithm_mkey & (SSL_kEDH|SSL_kEECDH)))
+ return 0;
+ break;
}
+ case SSL_SECOP_VERSION:
+ /* SSLv3 not allowed on level 2 */
+ if (nid <= SSL3_VERSION && level >= 2)
+ return 0;
+ /* TLS v1.1 and above only for level 3 */
+ if (nid <= TLS1_VERSION && level >= 3)
+ return 0;
+ /* TLS v1.2 only for level 4 and above */
+ if (nid <= TLS1_1_VERSION && level >= 4)
+ return 0;
+ break;
+ case SSL_SECOP_COMPRESSION:
+ if (level >= 2)
+ return 0;
+ break;
+ case SSL_SECOP_TICKET:
+ if (level >= 3)
+ return 0;
+ break;
+ default:
+ if (bits < minbits)
+ return 0;
+ }
return 1;
}
+int ssl_security(SSL *s, int op, int bits, int nid, void *other)
+ {
+ return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex);
+ }
+
+int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other)
+ {
+ return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, ctx->cert->sec_ex);
+ }
projects / openssl.git / blobdiff