| /* |
| * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the OpenSSL license (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| /* callback functions used by s_client, s_server, and s_time */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> /* for memcpy() and strcmp() */ |
| #include "apps.h" |
| #include <openssl/err.h> |
| #include <openssl/rand.h> |
| #include <openssl/x509.h> |
| #include <openssl/ssl.h> |
| #include <openssl/bn.h> |
| #ifndef OPENSSL_NO_DH |
| # include <openssl/dh.h> |
| #endif |
| #include "s_apps.h" |
| |
| #define COOKIE_SECRET_LENGTH 16 |
| |
| VERIFY_CB_ARGS verify_args = { -1, 0, X509_V_OK, 0 }; |
| |
| #ifndef OPENSSL_NO_SOCK |
| static unsigned char cookie_secret[COOKIE_SECRET_LENGTH]; |
| static int cookie_initialized = 0; |
| #endif |
| static BIO *bio_keylog = NULL; |
| |
| static const char *lookup(int val, const STRINT_PAIR* list, const char* def) |
| { |
| for ( ; list->name; ++list) |
| if (list->retval == val) |
| return list->name; |
| return def; |
| } |
| |
| int verify_callback(int ok, X509_STORE_CTX *ctx) |
| { |
| X509 *err_cert; |
| int err, depth; |
| |
| err_cert = X509_STORE_CTX_get_current_cert(ctx); |
| err = X509_STORE_CTX_get_error(ctx); |
| depth = X509_STORE_CTX_get_error_depth(ctx); |
| |
| if (!verify_args.quiet || !ok) { |
| BIO_printf(bio_err, "depth=%d ", depth); |
| if (err_cert != NULL) { |
| X509_NAME_print_ex(bio_err, |
| X509_get_subject_name(err_cert), |
| 0, get_nameopt()); |
| BIO_puts(bio_err, "\n"); |
| } else { |
| BIO_puts(bio_err, "<no cert>\n"); |
| } |
| } |
| if (!ok) { |
| BIO_printf(bio_err, "verify error:num=%d:%s\n", err, |
| X509_verify_cert_error_string(err)); |
| if (verify_args.depth < 0 || verify_args.depth >= depth) { |
| if (!verify_args.return_error) |
| ok = 1; |
| verify_args.error = err; |
| } else { |
| ok = 0; |
| verify_args.error = X509_V_ERR_CERT_CHAIN_TOO_LONG; |
| } |
| } |
| switch (err) { |
| case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT: |
| if (err_cert != NULL) { |
| BIO_puts(bio_err, "issuer= "); |
| X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert), |
| 0, get_nameopt()); |
| BIO_puts(bio_err, "\n"); |
| } |
| break; |
| case X509_V_ERR_CERT_NOT_YET_VALID: |
| case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD: |
| if (err_cert != NULL) { |
| BIO_printf(bio_err, "notBefore="); |
| ASN1_TIME_print(bio_err, X509_get0_notBefore(err_cert)); |
| BIO_printf(bio_err, "\n"); |
| } |
| break; |
| case X509_V_ERR_CERT_HAS_EXPIRED: |
| case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD: |
| if (err_cert != NULL) { |
| BIO_printf(bio_err, "notAfter="); |
| ASN1_TIME_print(bio_err, X509_get0_notAfter(err_cert)); |
| BIO_printf(bio_err, "\n"); |
| } |
| break; |
| case X509_V_ERR_NO_EXPLICIT_POLICY: |
| if (!verify_args.quiet) |
| policies_print(ctx); |
| break; |
| } |
| if (err == X509_V_OK && ok == 2 && !verify_args.quiet) |
| policies_print(ctx); |
| if (ok && !verify_args.quiet) |
| BIO_printf(bio_err, "verify return:%d\n", ok); |
| return ok; |
| } |
| |
| int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file) |
| { |
| if (cert_file != NULL) { |
| if (SSL_CTX_use_certificate_file(ctx, cert_file, |
| SSL_FILETYPE_PEM) <= 0) { |
| BIO_printf(bio_err, "unable to get certificate from '%s'\n", |
| cert_file); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| if (key_file == NULL) |
| key_file = cert_file; |
| if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) { |
| BIO_printf(bio_err, "unable to get private key from '%s'\n", |
| key_file); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| |
| /* |
| * If we are using DSA, we can copy the parameters from the private |
| * key |
| */ |
| |
| /* |
| * Now we know that a key and cert have been set against the SSL |
| * context |
| */ |
| if (!SSL_CTX_check_private_key(ctx)) { |
| BIO_printf(bio_err, |
| "Private key does not match the certificate public key\n"); |
| return 0; |
| } |
| } |
| return 1; |
| } |
| |
| int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key, |
| STACK_OF(X509) *chain, int build_chain) |
| { |
| int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0; |
| if (cert == NULL) |
| return 1; |
| if (SSL_CTX_use_certificate(ctx, cert) <= 0) { |
| BIO_printf(bio_err, "error setting certificate\n"); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| |
| if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) { |
| BIO_printf(bio_err, "error setting private key\n"); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| |
| /* |
| * Now we know that a key and cert have been set against the SSL context |
| */ |
| if (!SSL_CTX_check_private_key(ctx)) { |
| BIO_printf(bio_err, |
| "Private key does not match the certificate public key\n"); |
| return 0; |
| } |
| if (chain && !SSL_CTX_set1_chain(ctx, chain)) { |
| BIO_printf(bio_err, "error setting certificate chain\n"); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) { |
| BIO_printf(bio_err, "error building certificate chain\n"); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| return 1; |
| } |
| |
| static STRINT_PAIR cert_type_list[] = { |
| {"RSA sign", TLS_CT_RSA_SIGN}, |
| {"DSA sign", TLS_CT_DSS_SIGN}, |
| {"RSA fixed DH", TLS_CT_RSA_FIXED_DH}, |
| {"DSS fixed DH", TLS_CT_DSS_FIXED_DH}, |
| {"ECDSA sign", TLS_CT_ECDSA_SIGN}, |
| {"RSA fixed ECDH", TLS_CT_RSA_FIXED_ECDH}, |
| {"ECDSA fixed ECDH", TLS_CT_ECDSA_FIXED_ECDH}, |
| {"GOST01 Sign", TLS_CT_GOST01_SIGN}, |
| {"GOST12 Sign", TLS_CT_GOST12_SIGN}, |
| {NULL} |
| }; |
| |
| static void ssl_print_client_cert_types(BIO *bio, SSL *s) |
| { |
| const unsigned char *p; |
| int i; |
| int cert_type_num = SSL_get0_certificate_types(s, &p); |
| if (!cert_type_num) |
| return; |
| BIO_puts(bio, "Client Certificate Types: "); |
| for (i = 0; i < cert_type_num; i++) { |
| unsigned char cert_type = p[i]; |
| const char *cname = lookup((int)cert_type, cert_type_list, NULL); |
| |
| if (i) |
| BIO_puts(bio, ", "); |
| if (cname != NULL) |
| BIO_puts(bio, cname); |
| else |
| BIO_printf(bio, "UNKNOWN (%d),", cert_type); |
| } |
| BIO_puts(bio, "\n"); |
| } |
| |
| static const char *get_sigtype(int nid) |
| { |
| switch (nid) { |
| case EVP_PKEY_RSA: |
| return "RSA"; |
| |
| case EVP_PKEY_RSA_PSS: |
| return "RSA-PSS"; |
| |
| case EVP_PKEY_DSA: |
| return "DSA"; |
| |
| case EVP_PKEY_EC: |
| return "ECDSA"; |
| |
| case NID_ED25519: |
| return "Ed25519"; |
| |
| case NID_ED448: |
| return "Ed448"; |
| |
| case NID_id_GostR3410_2001: |
| return "gost2001"; |
| |
| case NID_id_GostR3410_2012_256: |
| return "gost2012_256"; |
| |
| case NID_id_GostR3410_2012_512: |
| return "gost2012_512"; |
| |
| default: |
| return NULL; |
| } |
| } |
| |
| static int do_print_sigalgs(BIO *out, SSL *s, int shared) |
| { |
| int i, nsig, client; |
| client = SSL_is_server(s) ? 0 : 1; |
| if (shared) |
| nsig = SSL_get_shared_sigalgs(s, 0, NULL, NULL, NULL, NULL, NULL); |
| else |
| nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL); |
| if (nsig == 0) |
| return 1; |
| |
| if (shared) |
| BIO_puts(out, "Shared "); |
| |
| if (client) |
| BIO_puts(out, "Requested "); |
| BIO_puts(out, "Signature Algorithms: "); |
| for (i = 0; i < nsig; i++) { |
| int hash_nid, sign_nid; |
| unsigned char rhash, rsign; |
| const char *sstr = NULL; |
| if (shared) |
| SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL, |
| &rsign, &rhash); |
| else |
| SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash); |
| if (i) |
| BIO_puts(out, ":"); |
| sstr = get_sigtype(sign_nid); |
| if (sstr) |
| BIO_printf(out, "%s", sstr); |
| else |
| BIO_printf(out, "0x%02X", (int)rsign); |
| if (hash_nid != NID_undef) |
| BIO_printf(out, "+%s", OBJ_nid2sn(hash_nid)); |
| else if (sstr == NULL) |
| BIO_printf(out, "+0x%02X", (int)rhash); |
| } |
| BIO_puts(out, "\n"); |
| return 1; |
| } |
| |
| int ssl_print_sigalgs(BIO *out, SSL *s) |
| { |
| int nid; |
| if (!SSL_is_server(s)) |
| ssl_print_client_cert_types(out, s); |
| do_print_sigalgs(out, s, 0); |
| do_print_sigalgs(out, s, 1); |
| if (SSL_get_peer_signature_nid(s, &nid) && nid != NID_undef) |
| BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(nid)); |
| if (SSL_get_peer_signature_type_nid(s, &nid)) |
| BIO_printf(out, "Peer signature type: %s\n", get_sigtype(nid)); |
| return 1; |
| } |
| |
| #ifndef OPENSSL_NO_EC |
| int ssl_print_point_formats(BIO *out, SSL *s) |
| { |
| int i, nformats; |
| const char *pformats; |
| nformats = SSL_get0_ec_point_formats(s, &pformats); |
| if (nformats <= 0) |
| return 1; |
| BIO_puts(out, "Supported Elliptic Curve Point Formats: "); |
| for (i = 0; i < nformats; i++, pformats++) { |
| if (i) |
| BIO_puts(out, ":"); |
| switch (*pformats) { |
| case TLSEXT_ECPOINTFORMAT_uncompressed: |
| BIO_puts(out, "uncompressed"); |
| break; |
| |
| case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime: |
| BIO_puts(out, "ansiX962_compressed_prime"); |
| break; |
| |
| case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2: |
| BIO_puts(out, "ansiX962_compressed_char2"); |
| break; |
| |
| default: |
| BIO_printf(out, "unknown(%d)", (int)*pformats); |
| break; |
| |
| } |
| } |
| BIO_puts(out, "\n"); |
| return 1; |
| } |
| |
| int ssl_print_groups(BIO *out, SSL *s, int noshared) |
| { |
| int i, ngroups, *groups, nid; |
| const char *gname; |
| |
| ngroups = SSL_get1_groups(s, NULL); |
| if (ngroups <= 0) |
| return 1; |
| groups = app_malloc(ngroups * sizeof(int), "groups to print"); |
| SSL_get1_groups(s, groups); |
| |
| BIO_puts(out, "Supported Elliptic Groups: "); |
| for (i = 0; i < ngroups; i++) { |
| if (i) |
| BIO_puts(out, ":"); |
| nid = groups[i]; |
| /* If unrecognised print out hex version */ |
| if (nid & TLSEXT_nid_unknown) { |
| BIO_printf(out, "0x%04X", nid & 0xFFFF); |
| } else { |
| /* TODO(TLS1.3): Get group name here */ |
| /* Use NIST name for curve if it exists */ |
| gname = EC_curve_nid2nist(nid); |
| if (gname == NULL) |
| gname = OBJ_nid2sn(nid); |
| BIO_printf(out, "%s", gname); |
| } |
| } |
| OPENSSL_free(groups); |
| if (noshared) { |
| BIO_puts(out, "\n"); |
| return 1; |
| } |
| BIO_puts(out, "\nShared Elliptic groups: "); |
| ngroups = SSL_get_shared_group(s, -1); |
| for (i = 0; i < ngroups; i++) { |
| if (i) |
| BIO_puts(out, ":"); |
| nid = SSL_get_shared_group(s, i); |
| /* TODO(TLS1.3): Convert for DH groups */ |
| gname = EC_curve_nid2nist(nid); |
| if (gname == NULL) |
| gname = OBJ_nid2sn(nid); |
| BIO_printf(out, "%s", gname); |
| } |
| if (ngroups == 0) |
| BIO_puts(out, "NONE"); |
| BIO_puts(out, "\n"); |
| return 1; |
| } |
| #endif |
| |
| int ssl_print_tmp_key(BIO *out, SSL *s) |
| { |
| EVP_PKEY *key; |
| |
| if (!SSL_get_peer_tmp_key(s, &key)) |
| return 1; |
| BIO_puts(out, "Server Temp Key: "); |
| switch (EVP_PKEY_id(key)) { |
| case EVP_PKEY_RSA: |
| BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key)); |
| break; |
| |
| case EVP_PKEY_DH: |
| BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key)); |
| break; |
| #ifndef OPENSSL_NO_EC |
| case EVP_PKEY_EC: |
| { |
| EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key); |
| int nid; |
| const char *cname; |
| nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec)); |
| EC_KEY_free(ec); |
| cname = EC_curve_nid2nist(nid); |
| if (cname == NULL) |
| cname = OBJ_nid2sn(nid); |
| BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key)); |
| } |
| break; |
| #endif |
| default: |
| BIO_printf(out, "%s, %d bits\n", OBJ_nid2sn(EVP_PKEY_id(key)), |
| EVP_PKEY_bits(key)); |
| } |
| EVP_PKEY_free(key); |
| return 1; |
| } |
| |
| long bio_dump_callback(BIO *bio, int cmd, const char *argp, |
| int argi, long argl, long ret) |
| { |
| BIO *out; |
| |
| out = (BIO *)BIO_get_callback_arg(bio); |
| if (out == NULL) |
| return ret; |
| |
| if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) { |
| BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n", |
| (void *)bio, (void *)argp, (unsigned long)argi, ret, ret); |
| BIO_dump(out, argp, (int)ret); |
| return ret; |
| } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) { |
| BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n", |
| (void *)bio, (void *)argp, (unsigned long)argi, ret, ret); |
| BIO_dump(out, argp, (int)ret); |
| } |
| return ret; |
| } |
| |
| void apps_ssl_info_callback(const SSL *s, int where, int ret) |
| { |
| const char *str; |
| int w; |
| |
| w = where & ~SSL_ST_MASK; |
| |
| if (w & SSL_ST_CONNECT) |
| str = "SSL_connect"; |
| else if (w & SSL_ST_ACCEPT) |
| str = "SSL_accept"; |
| else |
| str = "undefined"; |
| |
| if (where & SSL_CB_LOOP) { |
| BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s)); |
| } else if (where & SSL_CB_ALERT) { |
| str = (where & SSL_CB_READ) ? "read" : "write"; |
| BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n", |
| str, |
| SSL_alert_type_string_long(ret), |
| SSL_alert_desc_string_long(ret)); |
| } else if (where & SSL_CB_EXIT) { |
| if (ret == 0) |
| BIO_printf(bio_err, "%s:failed in %s\n", |
| str, SSL_state_string_long(s)); |
| else if (ret < 0) |
| BIO_printf(bio_err, "%s:error in %s\n", |
| str, SSL_state_string_long(s)); |
| } |
| } |
| |
| static STRINT_PAIR ssl_versions[] = { |
| {"SSL 3.0", SSL3_VERSION}, |
| {"TLS 1.0", TLS1_VERSION}, |
| {"TLS 1.1", TLS1_1_VERSION}, |
| {"TLS 1.2", TLS1_2_VERSION}, |
| {"TLS 1.3", TLS1_3_VERSION}, |
| {"DTLS 1.0", DTLS1_VERSION}, |
| {"DTLS 1.0 (bad)", DTLS1_BAD_VER}, |
| {NULL} |
| }; |
| |
| static STRINT_PAIR alert_types[] = { |
| {" close_notify", 0}, |
| {" end_of_early_data", 1}, |
| {" unexpected_message", 10}, |
| {" bad_record_mac", 20}, |
| {" decryption_failed", 21}, |
| {" record_overflow", 22}, |
| {" decompression_failure", 30}, |
| {" handshake_failure", 40}, |
| {" bad_certificate", 42}, |
| {" unsupported_certificate", 43}, |
| {" certificate_revoked", 44}, |
| {" certificate_expired", 45}, |
| {" certificate_unknown", 46}, |
| {" illegal_parameter", 47}, |
| {" unknown_ca", 48}, |
| {" access_denied", 49}, |
| {" decode_error", 50}, |
| {" decrypt_error", 51}, |
| {" export_restriction", 60}, |
| {" protocol_version", 70}, |
| {" insufficient_security", 71}, |
| {" internal_error", 80}, |
| {" inappropriate_fallback", 86}, |
| {" user_canceled", 90}, |
| {" no_renegotiation", 100}, |
| {" missing_extension", 109}, |
| {" unsupported_extension", 110}, |
| {" certificate_unobtainable", 111}, |
| {" unrecognized_name", 112}, |
| {" bad_certificate_status_response", 113}, |
| {" bad_certificate_hash_value", 114}, |
| {" unknown_psk_identity", 115}, |
| {" certificate_required", 116}, |
| {NULL} |
| }; |
| |
| static STRINT_PAIR handshakes[] = { |
| {", HelloRequest", SSL3_MT_HELLO_REQUEST}, |
| {", ClientHello", SSL3_MT_CLIENT_HELLO}, |
| {", ServerHello", SSL3_MT_SERVER_HELLO}, |
| {", HelloVerifyRequest", DTLS1_MT_HELLO_VERIFY_REQUEST}, |
| {", NewSessionTicket", SSL3_MT_NEWSESSION_TICKET}, |
| {", EndOfEarlyData", SSL3_MT_END_OF_EARLY_DATA}, |
| {", EncryptedExtensions", SSL3_MT_ENCRYPTED_EXTENSIONS}, |
| {", Certificate", SSL3_MT_CERTIFICATE}, |
| {", ServerKeyExchange", SSL3_MT_SERVER_KEY_EXCHANGE}, |
| {", CertificateRequest", SSL3_MT_CERTIFICATE_REQUEST}, |
| {", ServerHelloDone", SSL3_MT_SERVER_DONE}, |
| {", CertificateVerify", SSL3_MT_CERTIFICATE_VERIFY}, |
| {", ClientKeyExchange", SSL3_MT_CLIENT_KEY_EXCHANGE}, |
| {", Finished", SSL3_MT_FINISHED}, |
| {", CertificateUrl", SSL3_MT_CERTIFICATE_URL}, |
| {", CertificateStatus", SSL3_MT_CERTIFICATE_STATUS}, |
| {", SupplementalData", SSL3_MT_SUPPLEMENTAL_DATA}, |
| {", KeyUpdate", SSL3_MT_KEY_UPDATE}, |
| #ifndef OPENSSL_NO_NEXTPROTONEG |
| {", NextProto", SSL3_MT_NEXT_PROTO}, |
| #endif |
| {", MessageHash", SSL3_MT_MESSAGE_HASH}, |
| {NULL} |
| }; |
| |
| void msg_cb(int write_p, int version, int content_type, const void *buf, |
| size_t len, SSL *ssl, void *arg) |
| { |
| BIO *bio = arg; |
| const char *str_write_p = write_p ? ">>>" : "<<<"; |
| const char *str_version = lookup(version, ssl_versions, "???"); |
| const char *str_content_type = "", *str_details1 = "", *str_details2 = ""; |
| const unsigned char* bp = buf; |
| |
| if (version == SSL3_VERSION || |
| version == TLS1_VERSION || |
| version == TLS1_1_VERSION || |
| version == TLS1_2_VERSION || |
| version == TLS1_3_VERSION || |
| version == DTLS1_VERSION || version == DTLS1_BAD_VER) { |
| switch (content_type) { |
| case 20: |
| str_content_type = ", ChangeCipherSpec"; |
| break; |
| case 21: |
| str_content_type = ", Alert"; |
| str_details1 = ", ???"; |
| if (len == 2) { |
| switch (bp[0]) { |
| case 1: |
| str_details1 = ", warning"; |
| break; |
| case 2: |
| str_details1 = ", fatal"; |
| break; |
| } |
| str_details2 = lookup((int)bp[1], alert_types, " ???"); |
| } |
| break; |
| case 22: |
| str_content_type = ", Handshake"; |
| str_details1 = "???"; |
| if (len > 0) |
| str_details1 = lookup((int)bp[0], handshakes, "???"); |
| break; |
| case 23: |
| str_content_type = ", ApplicationData"; |
| break; |
| #ifndef OPENSSL_NO_HEARTBEATS |
| case 24: |
| str_details1 = ", Heartbeat"; |
| |
| if (len > 0) { |
| switch (bp[0]) { |
| case 1: |
| str_details1 = ", HeartbeatRequest"; |
| break; |
| case 2: |
| str_details1 = ", HeartbeatResponse"; |
| break; |
| } |
| } |
| break; |
| #endif |
| } |
| } |
| |
| BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, |
| str_content_type, (unsigned long)len, str_details1, |
| str_details2); |
| |
| if (len > 0) { |
| size_t num, i; |
| |
| BIO_printf(bio, " "); |
| num = len; |
| for (i = 0; i < num; i++) { |
| if (i % 16 == 0 && i > 0) |
| BIO_printf(bio, "\n "); |
| BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]); |
| } |
| if (i < len) |
| BIO_printf(bio, " ..."); |
| BIO_printf(bio, "\n"); |
| } |
| (void)BIO_flush(bio); |
| } |
| |
| static STRINT_PAIR tlsext_types[] = { |
| {"server name", TLSEXT_TYPE_server_name}, |
| {"max fragment length", TLSEXT_TYPE_max_fragment_length}, |
| {"client certificate URL", TLSEXT_TYPE_client_certificate_url}, |
| {"trusted CA keys", TLSEXT_TYPE_trusted_ca_keys}, |
| {"truncated HMAC", TLSEXT_TYPE_truncated_hmac}, |
| {"status request", TLSEXT_TYPE_status_request}, |
| {"user mapping", TLSEXT_TYPE_user_mapping}, |
| {"client authz", TLSEXT_TYPE_client_authz}, |
| {"server authz", TLSEXT_TYPE_server_authz}, |
| {"cert type", TLSEXT_TYPE_cert_type}, |
| {"supported_groups", TLSEXT_TYPE_supported_groups}, |
| {"EC point formats", TLSEXT_TYPE_ec_point_formats}, |
| {"SRP", TLSEXT_TYPE_srp}, |
| {"signature algorithms", TLSEXT_TYPE_signature_algorithms}, |
| {"use SRTP", TLSEXT_TYPE_use_srtp}, |
| {"heartbeat", TLSEXT_TYPE_heartbeat}, |
| {"session ticket", TLSEXT_TYPE_session_ticket}, |
| {"renegotiation info", TLSEXT_TYPE_renegotiate}, |
| {"signed certificate timestamps", TLSEXT_TYPE_signed_certificate_timestamp}, |
| {"TLS padding", TLSEXT_TYPE_padding}, |
| #ifdef TLSEXT_TYPE_next_proto_neg |
| {"next protocol", TLSEXT_TYPE_next_proto_neg}, |
| #endif |
| #ifdef TLSEXT_TYPE_encrypt_then_mac |
| {"encrypt-then-mac", TLSEXT_TYPE_encrypt_then_mac}, |
| #endif |
| #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
| {"application layer protocol negotiation", |
| TLSEXT_TYPE_application_layer_protocol_negotiation}, |
| #endif |
| #ifdef TLSEXT_TYPE_extended_master_secret |
| {"extended master secret", TLSEXT_TYPE_extended_master_secret}, |
| #endif |
| {"key share", TLSEXT_TYPE_key_share}, |
| {"supported versions", TLSEXT_TYPE_supported_versions}, |
| {"psk", TLSEXT_TYPE_psk}, |
| {"psk kex modes", TLSEXT_TYPE_psk_kex_modes}, |
| {"certificate authorities", TLSEXT_TYPE_certificate_authorities}, |
| {"post handshake auth", TLSEXT_TYPE_post_handshake_auth}, |
| {NULL} |
| }; |
| |
| /* from rfc8446 4.2.3. + gost (https://tools.ietf.org/id/draft-smyshlyaev-tls12-gost-suites-04.html) */ |
| static STRINT_PAIR signature_tls13_scheme_list[] = { |
| {"rsa_pkcs1_sha1", 0x0201 /* TLSEXT_SIGALG_rsa_pkcs1_sha1 */}, |
| {"ecdsa_sha1", 0x0203 /* TLSEXT_SIGALG_ecdsa_sha1 */}, |
| /* {"rsa_pkcs1_sha224", 0x0301 TLSEXT_SIGALG_rsa_pkcs1_sha224}, not in rfc8446 */ |
| /* {"ecdsa_sha224", 0x0303 TLSEXT_SIGALG_ecdsa_sha224} not in rfc8446 */ |
| {"rsa_pkcs1_sha256", 0x0401 /* TLSEXT_SIGALG_rsa_pkcs1_sha256 */}, |
| {"ecdsa_secp256r1_sha256", 0x0403 /* TLSEXT_SIGALG_ecdsa_secp256r1_sha256 */}, |
| {"rsa_pkcs1_sha384", 0x0501 /* TLSEXT_SIGALG_rsa_pkcs1_sha384 */}, |
| {"ecdsa_secp384r1_sha384", 0x0503 /* TLSEXT_SIGALG_ecdsa_secp384r1_sha384 */}, |
| {"rsa_pkcs1_sha512", 0x0601 /* TLSEXT_SIGALG_rsa_pkcs1_sha512 */}, |
| {"ecdsa_secp521r1_sha512", 0x0603 /* TLSEXT_SIGALG_ecdsa_secp521r1_sha512 */}, |
| {"rsa_pss_rsae_sha256", 0x0804 /* TLSEXT_SIGALG_rsa_pss_rsae_sha256 */}, |
| {"rsa_pss_rsae_sha384", 0x0805 /* TLSEXT_SIGALG_rsa_pss_rsae_sha384 */}, |
| {"rsa_pss_rsae_sha512", 0x0806 /* TLSEXT_SIGALG_rsa_pss_rsae_sha512 */}, |
| {"ed25519", 0x0807 /* TLSEXT_SIGALG_ed25519 */}, |
| {"ed448", 0x0808 /* TLSEXT_SIGALG_ed448 */}, |
| {"rsa_pss_pss_sha256", 0x0809 /* TLSEXT_SIGALG_rsa_pss_pss_sha256 */}, |
| {"rsa_pss_pss_sha384", 0x080a /* TLSEXT_SIGALG_rsa_pss_pss_sha384 */}, |
| {"rsa_pss_pss_sha512", 0x080b /* TLSEXT_SIGALG_rsa_pss_pss_sha512 */}, |
| {"gostr34102001", 0xeded /* TLSEXT_SIGALG_gostr34102001_gostr3411 */}, |
| {"gostr34102012_256", 0xeeee /* TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 */}, |
| {"gostr34102012_512", 0xefef /* TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 */}, |
| {NULL} |
| }; |
| |
| /* from rfc5246 7.4.1.4.1. */ |
| static STRINT_PAIR signature_tls12_alg_list[] = { |
| {"anonymous", TLSEXT_signature_anonymous /* 0 */}, |
| {"RSA", TLSEXT_signature_rsa /* 1 */}, |
| {"DSA", TLSEXT_signature_dsa /* 2 */}, |
| {"ECDSA", TLSEXT_signature_ecdsa /* 3 */}, |
| {NULL} |
| }; |
| |
| /* from rfc5246 7.4.1.4.1. */ |
| static STRINT_PAIR signature_tls12_hash_list[] = { |
| {"none", TLSEXT_hash_none /* 0 */}, |
| {"MD5", TLSEXT_hash_md5 /* 1 */}, |
| {"SHA1", TLSEXT_hash_sha1 /* 2 */}, |
| {"SHA224", TLSEXT_hash_sha224 /* 3 */}, |
| {"SHA256", TLSEXT_hash_sha256 /* 4 */}, |
| {"SHA384", TLSEXT_hash_sha384 /* 5 */}, |
| {"SHA512", TLSEXT_hash_sha512 /* 6 */}, |
| {NULL} |
| }; |
| |
| void tlsext_cb(SSL *s, int client_server, int type, |
| const unsigned char *data, int len, void *arg) |
| { |
| BIO *bio = arg; |
| const char *extname = lookup(type, tlsext_types, "unknown"); |
| |
| BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n", |
| client_server ? "server" : "client", extname, type, len); |
| BIO_dump(bio, (const char *)data, len); |
| (void)BIO_flush(bio); |
| } |
| |
| #ifndef OPENSSL_NO_SOCK |
| int generate_cookie_callback(SSL *ssl, unsigned char *cookie, |
| unsigned int *cookie_len) |
| { |
| unsigned char *buffer; |
| size_t length = 0; |
| unsigned short port; |
| BIO_ADDR *lpeer = NULL, *peer = NULL; |
| |
| /* Initialize a random secret */ |
| if (!cookie_initialized) { |
| if (RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH) <= 0) { |
| BIO_printf(bio_err, "error setting random cookie secret\n"); |
| return 0; |
| } |
| cookie_initialized = 1; |
| } |
| |
| if (SSL_is_dtls(ssl)) { |
| lpeer = peer = BIO_ADDR_new(); |
| if (peer == NULL) { |
| BIO_printf(bio_err, "memory full\n"); |
| return 0; |
| } |
| |
| /* Read peer information */ |
| (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), peer); |
| } else { |
| peer = ourpeer; |
| } |
| |
| /* Create buffer with peer's address and port */ |
| if (!BIO_ADDR_rawaddress(peer, NULL, &length)) { |
| BIO_printf(bio_err, "Failed getting peer address\n"); |
| return 0; |
| } |
| OPENSSL_assert(length != 0); |
| port = BIO_ADDR_rawport(peer); |
| length += sizeof(port); |
| buffer = app_malloc(length, "cookie generate buffer"); |
| |
| memcpy(buffer, &port, sizeof(port)); |
| BIO_ADDR_rawaddress(peer, buffer + sizeof(port), NULL); |
| |
| /* Calculate HMAC of buffer using the secret */ |
| HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH, |
| buffer, length, cookie, cookie_len); |
| |
| OPENSSL_free(buffer); |
| BIO_ADDR_free(lpeer); |
| |
| return 1; |
| } |
| |
| int verify_cookie_callback(SSL *ssl, const unsigned char *cookie, |
| unsigned int cookie_len) |
| { |
| unsigned char result[EVP_MAX_MD_SIZE]; |
| unsigned int resultlength; |
| |
| /* Note: we check cookie_initialized because if it's not, |
| * it cannot be valid */ |
| if (cookie_initialized |
| && generate_cookie_callback(ssl, result, &resultlength) |
| && cookie_len == resultlength |
| && memcmp(result, cookie, resultlength) == 0) |
| return 1; |
| |
| return 0; |
| } |
| |
| int generate_stateless_cookie_callback(SSL *ssl, unsigned char *cookie, |
| size_t *cookie_len) |
| { |
| unsigned int temp; |
| int res = generate_cookie_callback(ssl, cookie, &temp); |
| |
| if (res != 0) |
| *cookie_len = temp; |
| return res; |
| } |
| |
| int verify_stateless_cookie_callback(SSL *ssl, const unsigned char *cookie, |
| size_t cookie_len) |
| { |
| return verify_cookie_callback(ssl, cookie, cookie_len); |
| } |
| |
| #endif |
| |
| /* |
| * Example of extended certificate handling. Where the standard support of |
| * one certificate per algorithm is not sufficient an application can decide |
| * which certificate(s) to use at runtime based on whatever criteria it deems |
| * appropriate. |
| */ |
| |
| /* Linked list of certificates, keys and chains */ |
| struct ssl_excert_st { |
| int certform; |
| const char *certfile; |
| int keyform; |
| const char *keyfile; |
| const char *chainfile; |
| X509 *cert; |
| EVP_PKEY *key; |
| STACK_OF(X509) *chain; |
| int build_chain; |
| struct ssl_excert_st *next, *prev; |
| }; |
| |
| static STRINT_PAIR chain_flags[] = { |
| {"Overall Validity", CERT_PKEY_VALID}, |
| {"Sign with EE key", CERT_PKEY_SIGN}, |
| {"EE signature", CERT_PKEY_EE_SIGNATURE}, |
| {"CA signature", CERT_PKEY_CA_SIGNATURE}, |
| {"EE key parameters", CERT_PKEY_EE_PARAM}, |
| {"CA key parameters", CERT_PKEY_CA_PARAM}, |
| {"Explicitly sign with EE key", CERT_PKEY_EXPLICIT_SIGN}, |
| {"Issuer Name", CERT_PKEY_ISSUER_NAME}, |
| {"Certificate Type", CERT_PKEY_CERT_TYPE}, |
| {NULL} |
| }; |
| |
| static void print_chain_flags(SSL *s, int flags) |
| { |
| STRINT_PAIR *pp; |
| |
| for (pp = chain_flags; pp->name; ++pp) |
| BIO_printf(bio_err, "\t%s: %s\n", |
| pp->name, |
| (flags & pp->retval) ? "OK" : "NOT OK"); |
| BIO_printf(bio_err, "\tSuite B: "); |
| if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS) |
| BIO_puts(bio_err, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n"); |
| else |
| BIO_printf(bio_err, "not tested\n"); |
| } |
| |
| /* |
| * Very basic selection callback: just use any certificate chain reported as |
| * valid. More sophisticated could prioritise according to local policy. |
| */ |
| static int set_cert_cb(SSL *ssl, void *arg) |
| { |
| int i, rv; |
| SSL_EXCERT *exc = arg; |
| #ifdef CERT_CB_TEST_RETRY |
| static int retry_cnt; |
| if (retry_cnt < 5) { |
| retry_cnt++; |
| BIO_printf(bio_err, |
| "Certificate callback retry test: count %d\n", |
| retry_cnt); |
| return -1; |
| } |
| #endif |
| SSL_certs_clear(ssl); |
| |
| if (exc == NULL) |
| return 1; |
| |
| /* |
| * Go to end of list and traverse backwards since we prepend newer |
| * entries this retains the original order. |
| */ |
| while (exc->next != NULL) |
| exc = exc->next; |
| |
| i = 0; |
| |
| while (exc != NULL) { |
| i++; |
| rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain); |
| BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i); |
| X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0, |
| get_nameopt()); |
| BIO_puts(bio_err, "\n"); |
| print_chain_flags(ssl, rv); |
| if (rv & CERT_PKEY_VALID) { |
| if (!SSL_use_certificate(ssl, exc->cert) |
| || !SSL_use_PrivateKey(ssl, exc->key)) { |
| return 0; |
| } |
| /* |
| * NB: we wouldn't normally do this as it is not efficient |
| * building chains on each connection better to cache the chain |
| * in advance. |
| */ |
| if (exc->build_chain) { |
| if (!SSL_build_cert_chain(ssl, 0)) |
| return 0; |
| } else if (exc->chain != NULL) { |
| if (!SSL_set1_chain(ssl, exc->chain)) |
| return 0; |
| } |
| } |
| exc = exc->prev; |
| } |
| return 1; |
| } |
| |
| void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc) |
| { |
| SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc); |
| } |
| |
| static int ssl_excert_prepend(SSL_EXCERT **pexc) |
| { |
| SSL_EXCERT *exc = app_malloc(sizeof(*exc), "prepend cert"); |
| |
| memset(exc, 0, sizeof(*exc)); |
| |
| exc->next = *pexc; |
| *pexc = exc; |
| |
| if (exc->next) { |
| exc->certform = exc->next->certform; |
| exc->keyform = exc->next->keyform; |
| exc->next->prev = exc; |
| } else { |
| exc->certform = FORMAT_PEM; |
| exc->keyform = FORMAT_PEM; |
| } |
| return 1; |
| |
| } |
| |
| void ssl_excert_free(SSL_EXCERT *exc) |
| { |
| SSL_EXCERT *curr; |
| |
| if (exc == NULL) |
| return; |
| while (exc) { |
| X509_free(exc->cert); |
| EVP_PKEY_free(exc->key); |
| sk_X509_pop_free(exc->chain, X509_free); |
| curr = exc; |
| exc = exc->next; |
| OPENSSL_free(curr); |
| } |
| } |
| |
| int load_excert(SSL_EXCERT **pexc) |
| { |
| SSL_EXCERT *exc = *pexc; |
| if (exc == NULL) |
| return 1; |
| /* If nothing in list, free and set to NULL */ |
| if (exc->certfile == NULL && exc->next == NULL) { |
| ssl_excert_free(exc); |
| *pexc = NULL; |
| return 1; |
| } |
| for (; exc; exc = exc->next) { |
| if (exc->certfile == NULL) { |
| BIO_printf(bio_err, "Missing filename\n"); |
| return 0; |
| } |
| exc->cert = load_cert(exc->certfile, exc->certform, |
| "Server Certificate"); |
| if (exc->cert == NULL) |
| return 0; |
| if (exc->keyfile != NULL) { |
| exc->key = load_key(exc->keyfile, exc->keyform, |
| 0, NULL, NULL, "Server Key"); |
| } else { |
| exc->key = load_key(exc->certfile, exc->certform, |
| 0, NULL, NULL, "Server Key"); |
| } |
| if (exc->key == NULL) |
| return 0; |
| if (exc->chainfile != NULL) { |
| if (!load_certs(exc->chainfile, &exc->chain, FORMAT_PEM, NULL, |
| "Server Chain")) |
| return 0; |
| } |
| } |
| return 1; |
| } |
| |
| enum range { OPT_X_ENUM }; |
| |
| int args_excert(int opt, SSL_EXCERT **pexc) |
| { |
| SSL_EXCERT *exc = *pexc; |
| |
| assert(opt > OPT_X__FIRST); |
| assert(opt < OPT_X__LAST); |
| |
| if (exc == NULL) { |
| if (!ssl_excert_prepend(&exc)) { |
| BIO_printf(bio_err, " %s: Error initialising xcert\n", |
| opt_getprog()); |
| goto err; |
| } |
| *pexc = exc; |
| } |
| |
| switch ((enum range)opt) { |
| case OPT_X__FIRST: |
| case OPT_X__LAST: |
| return 0; |
| case OPT_X_CERT: |
| if (exc->certfile != NULL && !ssl_excert_prepend(&exc)) { |
| BIO_printf(bio_err, "%s: Error adding xcert\n", opt_getprog()); |
| goto err; |
| } |
| *pexc = exc; |
| exc->certfile = opt_arg(); |
| break; |
| case OPT_X_KEY: |
| if (exc->keyfile != NULL) { |
| BIO_printf(bio_err, "%s: Key already specified\n", opt_getprog()); |
| goto err; |
| } |
| exc->keyfile = opt_arg(); |
| break; |
| case OPT_X_CHAIN: |
| if (exc->chainfile != NULL) { |
| BIO_printf(bio_err, "%s: Chain already specified\n", |
| opt_getprog()); |
| goto err; |
| } |
| exc->chainfile = opt_arg(); |
| break; |
| case OPT_X_CHAIN_BUILD: |
| exc->build_chain = 1; |
| break; |
| case OPT_X_CERTFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->certform)) |
| return 0; |
| break; |
| case OPT_X_KEYFORM: |
| if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &exc->keyform)) |
| return 0; |
| break; |
| } |
| return 1; |
| |
| err: |
| ERR_print_errors(bio_err); |
| ssl_excert_free(exc); |
| *pexc = NULL; |
| return 0; |
| } |
| |
| static void print_raw_cipherlist(SSL *s) |
| { |
| const unsigned char *rlist; |
| static const unsigned char scsv_id[] = { 0, 0xFF }; |
| size_t i, rlistlen, num; |
| if (!SSL_is_server(s)) |
| return; |
| num = SSL_get0_raw_cipherlist(s, NULL); |
| OPENSSL_assert(num == 2); |
| rlistlen = SSL_get0_raw_cipherlist(s, &rlist); |
| BIO_puts(bio_err, "Client cipher list: "); |
| for (i = 0; i < rlistlen; i += num, rlist += num) { |
| const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist); |
| if (i) |
| BIO_puts(bio_err, ":"); |
| if (c != NULL) { |
| BIO_puts(bio_err, SSL_CIPHER_get_name(c)); |
| } else if (memcmp(rlist, scsv_id, num) == 0) { |
| BIO_puts(bio_err, "SCSV"); |
| } else { |
| size_t j; |
| BIO_puts(bio_err, "0x"); |
| for (j = 0; j < num; j++) |
| BIO_printf(bio_err, "%02X", rlist[j]); |
| } |
| } |
| BIO_puts(bio_err, "\n"); |
| } |
| |
| /* |
| * Hex encoder for TLSA RRdata, not ':' delimited. |
| */ |
| static char *hexencode(const unsigned char *data, size_t len) |
| { |
| static const char *hex = "0123456789abcdef"; |
| char *out; |
| char *cp; |
| size_t outlen = 2 * len + 1; |
| int ilen = (int) outlen; |
| |
| if (outlen < len || ilen < 0 || outlen != (size_t)ilen) { |
| BIO_printf(bio_err, "%s: %zu-byte buffer too large to hexencode\n", |
| opt_getprog(), len); |
| exit(1); |
| } |
| cp = out = app_malloc(ilen, "TLSA hex data buffer"); |
| |
| while (len-- > 0) { |
| *cp++ = hex[(*data >> 4) & 0x0f]; |
| *cp++ = hex[*data++ & 0x0f]; |
| } |
| *cp = '\0'; |
| return out; |
| } |
| |
| void print_verify_detail(SSL *s, BIO *bio) |
| { |
| int mdpth; |
| EVP_PKEY *mspki; |
| long verify_err = SSL_get_verify_result(s); |
| |
| if (verify_err == X509_V_OK) { |
| const char *peername = SSL_get0_peername(s); |
| |
| BIO_printf(bio, "Verification: OK\n"); |
| if (peername != NULL) |
| BIO_printf(bio, "Verified peername: %s\n", peername); |
| } else { |
| const char *reason = X509_verify_cert_error_string(verify_err); |
| |
| BIO_printf(bio, "Verification error: %s\n", reason); |
| } |
| |
| if ((mdpth = SSL_get0_dane_authority(s, NULL, &mspki)) >= 0) { |
| uint8_t usage, selector, mtype; |
| const unsigned char *data = NULL; |
| size_t dlen = 0; |
| char *hexdata; |
| |
| mdpth = SSL_get0_dane_tlsa(s, &usage, &selector, &mtype, &data, &dlen); |
| |
| /* |
| * The TLSA data field can be quite long when it is a certificate, |
| * public key or even a SHA2-512 digest. Because the initial octets of |
| * ASN.1 certificates and public keys contain mostly boilerplate OIDs |
| * and lengths, we show the last 12 bytes of the data instead, as these |
| * are more likely to distinguish distinct TLSA records. |
| */ |
| #define TLSA_TAIL_SIZE 12 |
| if (dlen > TLSA_TAIL_SIZE) |
| hexdata = hexencode(data + dlen - TLSA_TAIL_SIZE, TLSA_TAIL_SIZE); |
| else |
| hexdata = hexencode(data, dlen); |
| BIO_printf(bio, "DANE TLSA %d %d %d %s%s %s at depth %d\n", |
| usage, selector, mtype, |
| (dlen > TLSA_TAIL_SIZE) ? "..." : "", hexdata, |
| (mspki != NULL) ? "signed the certificate" : |
| mdpth ? "matched TA certificate" : "matched EE certificate", |
| mdpth); |
| OPENSSL_free(hexdata); |
| } |
| } |
| |
| void print_ssl_summary(SSL *s) |
| { |
| const SSL_CIPHER *c; |
| X509 *peer; |
| |
| BIO_printf(bio_err, "Protocol version: %s\n", SSL_get_version(s)); |
| print_raw_cipherlist(s); |
| c = SSL_get_current_cipher(s); |
| BIO_printf(bio_err, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c)); |
| do_print_sigalgs(bio_err, s, 0); |
| peer = SSL_get_peer_certificate(s); |
| if (peer != NULL) { |
| int nid; |
| |
| BIO_puts(bio_err, "Peer certificate: "); |
| X509_NAME_print_ex(bio_err, X509_get_subject_name(peer), |
| 0, get_nameopt()); |
| BIO_puts(bio_err, "\n"); |
| if (SSL_get_peer_signature_nid(s, &nid)) |
| BIO_printf(bio_err, "Hash used: %s\n", OBJ_nid2sn(nid)); |
| if (SSL_get_peer_signature_type_nid(s, &nid)) |
| BIO_printf(bio_err, "Signature type: %s\n", get_sigtype(nid)); |
| print_verify_detail(s, bio_err); |
| } else { |
| BIO_puts(bio_err, "No peer certificate\n"); |
| } |
| X509_free(peer); |
| #ifndef OPENSSL_NO_EC |
| ssl_print_point_formats(bio_err, s); |
| if (SSL_is_server(s)) |
| ssl_print_groups(bio_err, s, 1); |
| else |
| ssl_print_tmp_key(bio_err, s); |
| #else |
| if (!SSL_is_server(s)) |
| ssl_print_tmp_key(bio_err, s); |
| #endif |
| } |
| |
| int config_ctx(SSL_CONF_CTX *cctx, STACK_OF(OPENSSL_STRING) *str, |
| SSL_CTX *ctx) |
| { |
| int i; |
| |
| SSL_CONF_CTX_set_ssl_ctx(cctx, ctx); |
| for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) { |
| const char *flag = sk_OPENSSL_STRING_value(str, i); |
| const char *arg = sk_OPENSSL_STRING_value(str, i + 1); |
| if (SSL_CONF_cmd(cctx, flag, arg) <= 0) { |
| if (arg != NULL) |
| BIO_printf(bio_err, "Error with command: \"%s %s\"\n", |
| flag, arg); |
| else |
| BIO_printf(bio_err, "Error with command: \"%s\"\n", flag); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| } |
| if (!SSL_CONF_CTX_finish(cctx)) { |
| BIO_puts(bio_err, "Error finishing context\n"); |
| ERR_print_errors(bio_err); |
| return 0; |
| } |
| return 1; |
| } |
| |
| static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls) |
| { |
| X509_CRL *crl; |
| int i; |
| for (i = 0; i < sk_X509_CRL_num(crls); i++) { |
| crl = sk_X509_CRL_value(crls, i); |
| X509_STORE_add_crl(st, crl); |
| } |
| return 1; |
| } |
| |
| int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download) |
| { |
| X509_STORE *st; |
| st = SSL_CTX_get_cert_store(ctx); |
| add_crls_store(st, crls); |
| if (crl_download) |
| store_setup_crl_download(st); |
| return 1; |
| } |
| |
| int ssl_load_stores(SSL_CTX *ctx, |
| const char *vfyCApath, const char *vfyCAfile, |
| const char *chCApath, const char *chCAfile, |
| STACK_OF(X509_CRL) *crls, int crl_download) |
| { |
| X509_STORE *vfy = NULL, *ch = NULL; |
| int rv = 0; |
| if (vfyCApath != NULL || vfyCAfile != NULL) { |
| vfy = X509_STORE_new(); |
| if (vfy == NULL) |
| goto err; |
| if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath)) |
| goto err; |
| add_crls_store(vfy, crls); |
| SSL_CTX_set1_verify_cert_store(ctx, vfy); |
| if (crl_download) |
| store_setup_crl_download(vfy); |
| } |
| if (chCApath != NULL || chCAfile != NULL) { |
| ch = X509_STORE_new(); |
| if (ch == NULL) |
| goto err; |
| if (!X509_STORE_load_locations(ch, chCAfile, chCApath)) |
| goto err; |
| SSL_CTX_set1_chain_cert_store(ctx, ch); |
| } |
| rv = 1; |
| err: |
| X509_STORE_free(vfy); |
| X509_STORE_free(ch); |
| return rv; |
| } |
| |
| /* Verbose print out of security callback */ |
| |
| typedef struct { |
| BIO *out; |
| int verbose; |
| int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid, |
| void *other, void *ex); |
| } security_debug_ex; |
| |
| static STRINT_PAIR callback_types[] = { |
| {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED}, |
| {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED}, |
| {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK}, |
| #ifndef OPENSSL_NO_DH |
| {"Temp DH key bits", SSL_SECOP_TMP_DH}, |
| #endif |
| {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED}, |
| {"Shared Curve", SSL_SECOP_CURVE_SHARED}, |
| {"Check Curve", SSL_SECOP_CURVE_CHECK}, |
| {"Supported Signature Algorithm", SSL_SECOP_SIGALG_SUPPORTED}, |
| {"Shared Signature Algorithm", SSL_SECOP_SIGALG_SHARED}, |
| {"Check Signature Algorithm", SSL_SECOP_SIGALG_CHECK}, |
| {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK}, |
| {"Certificate chain EE key", SSL_SECOP_EE_KEY}, |
| {"Certificate chain CA key", SSL_SECOP_CA_KEY}, |
| {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY}, |
| {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY}, |
| {"Certificate chain CA digest", SSL_SECOP_CA_MD}, |
| {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD}, |
| {"SSL compression", SSL_SECOP_COMPRESSION}, |
| {"Session ticket", SSL_SECOP_TICKET}, |
| {NULL} |
| }; |
| |
| static int security_callback_debug(const SSL *s, const SSL_CTX *ctx, |
| int op, int bits, int nid, |
| void *other, void *ex) |
| { |
| security_debug_ex *sdb = ex; |
| int rv, show_bits = 1, cert_md = 0; |
| const char *nm; |
| int show_nm; |
| rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex); |
| if (rv == 1 && sdb->verbose < 2) |
| return 1; |
| BIO_puts(sdb->out, "Security callback: "); |
| |
| nm = lookup(op, callback_types, NULL); |
| show_nm = nm != NULL; |
| switch (op) { |
| case SSL_SECOP_TICKET: |
| case SSL_SECOP_COMPRESSION: |
| show_bits = 0; |
| show_nm = 0; |
| break; |
| case SSL_SECOP_VERSION: |
| BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???")); |
| show_bits = 0; |
| show_nm = 0; |
| break; |
| case SSL_SECOP_CA_MD: |
| case SSL_SECOP_PEER_CA_MD: |
| cert_md = 1; |
| break; |
| case SSL_SECOP_SIGALG_SUPPORTED: |
| case SSL_SECOP_SIGALG_SHARED: |
| case SSL_SECOP_SIGALG_CHECK: |
| case SSL_SECOP_SIGALG_MASK: |
| show_nm = 0; |
| break; |
| } |
| if (show_nm) |
| BIO_printf(sdb->out, "%s=", nm); |
| |
| switch (op & SSL_SECOP_OTHER_TYPE) { |
| |
| case SSL_SECOP_OTHER_CIPHER: |
| BIO_puts(sdb->out, SSL_CIPHER_get_name(other)); |
| break; |
| |
| #ifndef OPENSSL_NO_EC |
| case SSL_SECOP_OTHER_CURVE: |
| { |
| const char *cname; |
| cname = EC_curve_nid2nist(nid); |
| if (cname == NULL) |
| cname = OBJ_nid2sn(nid); |
| BIO_puts(sdb->out, cname); |
| } |
| break; |
| #endif |
| #ifndef OPENSSL_NO_DH |
| case SSL_SECOP_OTHER_DH: |
| { |
| DH *dh = other; |
| BIO_printf(sdb->out, "%d", DH_bits(dh)); |
| break; |
| } |
| #endif |
| case SSL_SECOP_OTHER_CERT: |
| { |
| if (cert_md) { |
| int sig_nid = X509_get_signature_nid(other); |
| BIO_puts(sdb->out, OBJ_nid2sn(sig_nid)); |
| } else { |
| EVP_PKEY *pkey = X509_get0_pubkey(other); |
| const char *algname = ""; |
| EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, |
| &algname, EVP_PKEY_get0_asn1(pkey)); |
| BIO_printf(sdb->out, "%s, bits=%d", |
| algname, EVP_PKEY_bits(pkey)); |
| } |
| break; |
| } |
| case SSL_SECOP_OTHER_SIGALG: |
| { |
| const unsigned char *salg = other; |
| const char *sname = NULL; |
| int raw_sig_code = (salg[0] << 8) + salg[1]; /* always big endian (msb, lsb) */ |
| /* raw_sig_code: signature_scheme from tls1.3, or signature_and_hash from tls1.2 */ |
| |
| if (nm != NULL) |
| BIO_printf(sdb->out, "%s", nm); |
| else |
| BIO_printf(sdb->out, "s_cb.c:security_callback_debug op=0x%x", op); |
| |
| sname = lookup(raw_sig_code, signature_tls13_scheme_list, NULL); |
| if (sname != NULL) { |
| BIO_printf(sdb->out, " scheme=%s", sname); |
| } else { |
| int alg_code = salg[1]; |
| int hash_code = salg[0]; |
| const char *alg_str = lookup(alg_code, signature_tls12_alg_list, NULL); |
| const char *hash_str = lookup(hash_code, signature_tls12_hash_list, NULL); |
| |
| if (alg_str != NULL && hash_str != NULL) |
| BIO_printf(sdb->out, " digest=%s, algorithm=%s", hash_str, alg_str); |
| else |
| BIO_printf(sdb->out, " scheme=unknown(0x%04x)", raw_sig_code); |
| } |
| } |
| |
| } |
| |
| if (show_bits) |
| BIO_printf(sdb->out, ", security bits=%d", bits); |
| BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no"); |
| return rv; |
| } |
| |
| void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose) |
| { |
| static security_debug_ex sdb; |
| |
| sdb.out = bio_err; |
| sdb.verbose = verbose; |
| sdb.old_cb = SSL_CTX_get_security_callback(ctx); |
| SSL_CTX_set_security_callback(ctx, security_callback_debug); |
| SSL_CTX_set0_security_ex_data(ctx, &sdb); |
| } |
| |
| static void keylog_callback(const SSL *ssl, const char *line) |
| { |
| if (bio_keylog == NULL) { |
| BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n"); |
| return; |
| } |
| |
| /* |
| * There might be concurrent writers to the keylog file, so we must ensure |
| * that the given line is written at once. |
| */ |
| BIO_printf(bio_keylog, "%s\n", line); |
| (void)BIO_flush(bio_keylog); |
| } |
| |
| int set_keylog_file(SSL_CTX *ctx, const char *keylog_file) |
| { |
| /* Close any open files */ |
| BIO_free_all(bio_keylog); |
| bio_keylog = NULL; |
| |
| if (ctx == NULL || keylog_file == NULL) { |
| /* Keylogging is disabled, OK. */ |
| return 0; |
| } |
| |
| /* |
| * Append rather than write in order to allow concurrent modification. |
| * Furthermore, this preserves existing keylog files which is useful when |
| * the tool is run multiple times. |
| */ |
| bio_keylog = BIO_new_file(keylog_file, "a"); |
| if (bio_keylog == NULL) { |
| BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file); |
| return 1; |
| } |
| |
| /* Write a header for seekable, empty files (this excludes pipes). */ |
| if (BIO_tell(bio_keylog) == 0) { |
| BIO_puts(bio_keylog, |
| "# SSL/TLS secrets log file, generated by OpenSSL\n"); |
| (void)BIO_flush(bio_keylog); |
| } |
| SSL_CTX_set_keylog_callback(ctx, keylog_callback); |
| return 0; |
| } |
| |
| void print_ca_names(BIO *bio, SSL *s) |
| { |
| const char *cs = SSL_is_server(s) ? "server" : "client"; |
| const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s); |
| int i; |
| |
| if (sk == NULL || sk_X509_NAME_num(sk) == 0) { |
| if (!SSL_is_server(s)) |
| BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs); |
| return; |
| } |
| |
| BIO_printf(bio, "---\nAcceptable %s certificate CA names\n",cs); |
| for (i = 0; i < sk_X509_NAME_num(sk); i++) { |
| X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt()); |
| BIO_write(bio, "\n", 1); |
| } |
| } |
