Update OpenSSL to version 1.0.2g

2016-04-15 19:03:35 +04:30
parent 880f4abda4
commit e97922f220
447 changed files with 32806 additions and 113880 deletions
@@ -139,29 +139,50 @@ int SSL_get_ex_data_X509_STORE_CTX_idx(void)
    static volatile int ssl_x509_store_ctx_idx = -1;
    int got_write_lock = 0;

-    CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
+    if (((size_t)&ssl_x509_store_ctx_idx &
+         (sizeof(ssl_x509_store_ctx_idx) - 1))
+        == 0) {                 /* check alignment, practically always true */
+        int ret;

-    if (ssl_x509_store_ctx_idx < 0) {
-        CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
-        CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
-        got_write_lock = 1;
+        if ((ret = ssl_x509_store_ctx_idx) < 0) {
+            CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+            if ((ret = ssl_x509_store_ctx_idx) < 0) {
+                ret = ssl_x509_store_ctx_idx =
+                    X509_STORE_CTX_get_ex_new_index(0,
+                                                    "SSL for verify callback",
+                                                    NULL, NULL, NULL);
+            }
+            CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+        }
+
+        return ret;
+    } else {                    /* commonly eliminated */
+
+        CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);

        if (ssl_x509_store_ctx_idx < 0) {
-            ssl_x509_store_ctx_idx =
-                X509_STORE_CTX_get_ex_new_index(0, "SSL for verify callback",
-                                                NULL, NULL, NULL);
+            CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
+            CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+            got_write_lock = 1;
+
+            if (ssl_x509_store_ctx_idx < 0) {
+                ssl_x509_store_ctx_idx =
+                    X509_STORE_CTX_get_ex_new_index(0,
+                                                    "SSL for verify callback",
+                                                    NULL, NULL, NULL);
+            }
        }
+
+        if (got_write_lock)
+            CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+        else
+            CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
+
+        return ssl_x509_store_ctx_idx;
    }
-
-    if (got_write_lock)
-        CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
-    else
-        CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
-
-    return ssl_x509_store_ctx_idx;
 }

-static void ssl_cert_set_default_md(CERT *cert)
+void ssl_cert_set_default_md(CERT *cert)
 {
    /* Set digest values to defaults */
 #ifndef OPENSSL_NO_DSA
@@ -263,31 +284,111 @@ CERT *ssl_cert_dup(CERT *cert)
        }
    }
    ret->ecdh_tmp_cb = cert->ecdh_tmp_cb;
+    ret->ecdh_tmp_auto = cert->ecdh_tmp_auto;
 #endif

    for (i = 0; i < SSL_PKEY_NUM; i++) {
-        if (cert->pkeys[i].x509 != NULL) {
-            ret->pkeys[i].x509 = cert->pkeys[i].x509;
-            CRYPTO_add(&ret->pkeys[i].x509->references, 1, CRYPTO_LOCK_X509);
+        CERT_PKEY *cpk = cert->pkeys + i;
+        CERT_PKEY *rpk = ret->pkeys + i;
+        if (cpk->x509 != NULL) {
+            rpk->x509 = cpk->x509;
+            CRYPTO_add(&rpk->x509->references, 1, CRYPTO_LOCK_X509);
        }

-        if (cert->pkeys[i].privatekey != NULL) {
-            ret->pkeys[i].privatekey = cert->pkeys[i].privatekey;
-            CRYPTO_add(&ret->pkeys[i].privatekey->references, 1,
-                       CRYPTO_LOCK_EVP_PKEY);
+        if (cpk->privatekey != NULL) {
+            rpk->privatekey = cpk->privatekey;
+            CRYPTO_add(&cpk->privatekey->references, 1, CRYPTO_LOCK_EVP_PKEY);
        }
+
+        if (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;
+            }
+        }
+        rpk->valid_flags = 0;
+#ifndef OPENSSL_NO_TLSEXT
+        if (cert->pkeys[i].serverinfo != NULL) {
+            /* Just copy everything. */
+            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;
+            }
+            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->extra_certs *should* exist, but currently the own certificate
-     * chain is held inside SSL_CTX
-     */
-
    /*
     * Set digests to defaults. NB: we don't copy existing values as they
     * will be set during handshake.
     */
    ssl_cert_set_default_md(ret);
+    /* Peer sigalgs set to NULL as we get these from handshake too */
+    ret->peer_sigalgs = NULL;
+    ret->peer_sigalgslen = 0;
+    /* Configured sigalgs however we copy across */
+
+    if (cert->conf_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);
+        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;
+
+#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);

@@ -307,16 +408,49 @@ CERT *ssl_cert_dup(CERT *cert)
        EC_KEY_free(ret->ecdh_tmp);
 #endif

-    for (i = 0; i < SSL_PKEY_NUM; i++) {
-        if (ret->pkeys[i].x509 != NULL)
-            X509_free(ret->pkeys[i].x509);
-        if (ret->pkeys[i].privatekey != NULL)
-            EVP_PKEY_free(ret->pkeys[i].privatekey);
-    }
+#ifndef OPENSSL_NO_TLSEXT
+    custom_exts_free(&ret->cli_ext);
+    custom_exts_free(&ret->srv_ext);
+#endif
+
+    ssl_cert_clear_certs(ret);

    return NULL;
 }

+/* Free up and clear all certificates and chains */
+
+void ssl_cert_clear_certs(CERT *c)
+{
+    int i;
+    if (c == NULL)
+        return;
+    for (i = 0; i < SSL_PKEY_NUM; i++) {
+        CERT_PKEY *cpk = c->pkeys + i;
+        if (cpk->x509) {
+            X509_free(cpk->x509);
+            cpk->x509 = NULL;
+        }
+        if (cpk->privatekey) {
+            EVP_PKEY_free(cpk->privatekey);
+            cpk->privatekey = NULL;
+        }
+        if (cpk->chain) {
+            sk_X509_pop_free(cpk->chain, X509_free);
+            cpk->chain = NULL;
+        }
+#ifndef OPENSSL_NO_TLSEXT
+        if (cpk->serverinfo) {
+            OPENSSL_free(cpk->serverinfo);
+            cpk->serverinfo = NULL;
+            cpk->serverinfo_length = 0;
+        }
+#endif
+        /* Clear all flags apart from explicit sign */
+        cpk->valid_flags &= CERT_PKEY_EXPLICIT_SIGN;
+    }
+}
+
 void ssl_cert_free(CERT *c)
 {
    int i;
@@ -350,16 +484,27 @@ void ssl_cert_free(CERT *c)
        EC_KEY_free(c->ecdh_tmp);
 #endif

-    for (i = 0; i < SSL_PKEY_NUM; i++) {
-        if (c->pkeys[i].x509 != NULL)
-            X509_free(c->pkeys[i].x509);
-        if (c->pkeys[i].privatekey != NULL)
-            EVP_PKEY_free(c->pkeys[i].privatekey);
-#if 0
-        if (c->pkeys[i].publickey != NULL)
-            EVP_PKEY_free(c->pkeys[i].publickey);
+    ssl_cert_clear_certs(c);
+    if (c->peer_sigalgs)
+        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);
 }

@@ -388,6 +533,104 @@ int ssl_cert_inst(CERT **o)
    return (1);
 }

+int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain)
+{
+    CERT_PKEY *cpk = c->key;
+    if (!cpk)
+        return 0;
+    if (cpk->chain)
+        sk_X509_pop_free(cpk->chain, X509_free);
+    cpk->chain = chain;
+    return 1;
+}
+
+int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain)
+{
+    STACK_OF(X509) *dchain;
+    if (!chain)
+        return ssl_cert_set0_chain(c, NULL);
+    dchain = X509_chain_up_ref(chain);
+    if (!dchain)
+        return 0;
+    if (!ssl_cert_set0_chain(c, dchain)) {
+        sk_X509_pop_free(dchain, X509_free);
+        return 0;
+    }
+    return 1;
+}
+
+int ssl_cert_add0_chain_cert(CERT *c, X509 *x)
+{
+    CERT_PKEY *cpk = c->key;
+    if (!cpk)
+        return 0;
+    if (!cpk->chain)
+        cpk->chain = sk_X509_new_null();
+    if (!cpk->chain || !sk_X509_push(cpk->chain, x))
+        return 0;
+    return 1;
+}
+
+int ssl_cert_add1_chain_cert(CERT *c, X509 *x)
+{
+    if (!ssl_cert_add0_chain_cert(c, 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;
@@ -466,16 +709,24 @@ int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk)
 {
    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));
@@ -797,3 +1048,210 @@ int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
    CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
    return ret;
 }
+
+/* Add a certificate to a BUF_MEM structure */
+
+static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x)
+{
+    int n;
+    unsigned char *p;
+
+    n = i2d_X509(x, NULL);
+    if (!BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) {
+        SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB);
+        return 0;
+    }
+    p = (unsigned char *)&(buf->data[*l]);
+    l2n3(n, p);
+    i2d_X509(x, &p);
+    *l += n + 3;
+
+    return 1;
+}
+
+/* Add certificate chain to internal SSL BUF_MEM strcuture */
+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;
+
+    if (s->cert->chain_store)
+        chain_store = s->cert->chain_store;
+    else
+        chain_store = s->ctx->cert_store;
+
+    /*
+     * If we have a certificate specific chain use it, else use parent ctx.
+     */
+    if (cpk && 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;
+    else
+        no_chain = 0;
+
+    /* 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 (x != NULL) {
+        if (no_chain) {
+            if (!ssl_add_cert_to_buf(buf, l, x))
+                return 0;
+        } else {
+            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();
+            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);
+        }
+    }
+    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;
+    }
+
+    return 1;
+}
+
+/* Build a certificate chain for current certificate */
+int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags)
+{
+    CERT_PKEY *cpk = c->key;
+    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)) {
+                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();
+            }
+        }
+        /* 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();
+        }
+    } else {
+        if (c->chain_store)
+            chain_store = c->chain_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));
+
+        X509_STORE_CTX_cleanup(&xs_ctx);
+        goto err;
+    }
+    X509_STORE_CTX_cleanup(&xs_ctx);
+    if (cpk->chain)
+        sk_X509_pop_free(cpk->chain, X509_free);
+    /* 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);
+            }
+        }
+    }
+    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;
+}