/* * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved * Copyright 2005 Nokia. 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 */ #include #include #include #include #if defined(_WIN32) /* Included before async.h to avoid some warnings */ # include #endif #include #include #include #ifndef OPENSSL_NO_SOCK /* * With IPv6, it looks like Digital has mixed up the proper order of * recursive header file inclusion, resulting in the compiler complaining * that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is * needed to have fileno() declared correctly... So let's define u_int */ #if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT) # define __U_INT typedef unsigned int u_int; #endif #include #include "apps.h" #include "progs.h" #include #include #include #include #include #include #ifndef OPENSSL_NO_DH # include #endif #ifndef OPENSSL_NO_RSA # include #endif #ifndef OPENSSL_NO_SRP # include #endif #include "s_apps.h" #include "timeouts.h" #ifdef CHARSET_EBCDIC #include #endif #include "internal/sockets.h" static int not_resumable_sess_cb(SSL *s, int is_forward_secure); static int sv_body(int s, int stype, int prot, unsigned char *context); static int www_body(int s, int stype, int prot, unsigned char *context); static int rev_body(int s, int stype, int prot, unsigned char *context); static void close_accept_socket(void); static int init_ssl_connection(SSL *s); static void print_stats(BIO *bp, SSL_CTX *ctx); static int generate_session_id(SSL *ssl, unsigned char *id, unsigned int *id_len); static void init_session_cache_ctx(SSL_CTX *sctx); static void free_sessions(void); #ifndef OPENSSL_NO_DH static DH *load_dh_param(const char *dhfile); #endif static void print_connection_info(SSL *con); static const int bufsize = 16 * 1024; static int accept_socket = -1; #define TEST_CERT "server.pem" #define TEST_CERT2 "server2.pem" static int s_nbio = 0; static int s_nbio_test = 0; static int s_crlf = 0; static SSL_CTX *ctx = NULL; static SSL_CTX *ctx2 = NULL; static int www = 0; static BIO *bio_s_out = NULL; static BIO *bio_s_msg = NULL; static int s_debug = 0; static int s_tlsextdebug = 0; static int s_msg = 0; static int s_quiet = 0; static int s_ign_eof = 0; static int s_brief = 0; static char *keymatexportlabel = NULL; static int keymatexportlen = 20; static int async = 0; static const char *session_id_prefix = NULL; #ifndef OPENSSL_NO_DTLS static int enable_timeouts = 0; static long socket_mtu; #endif /* * We define this but make it always be 0 in no-dtls builds to simplify the * code. */ static int dtlslisten = 0; static int stateless = 0; static int early_data = 0; static SSL_SESSION *psksess = NULL; static char *psk_identity = "Client_identity"; char *psk_key = NULL; /* by default PSK is not used */ #ifndef OPENSSL_NO_PSK static unsigned int psk_server_cb(SSL *ssl, const char *identity, unsigned char *psk, unsigned int max_psk_len) { long key_len = 0; unsigned char *key; if (s_debug) BIO_printf(bio_s_out, "psk_server_cb\n"); if (!SSL_is_dtls(ssl) && SSL_version(ssl) >= TLS1_3_VERSION) { /* * This callback is designed for use in (D)TLSv1.2 (or below). It is * possible to use a single callback for all protocol versions - but it * is preferred to use a dedicated callback for TLSv1.3. For TLSv1.3 we * have psk_find_session_cb. */ return 0; } if (identity == NULL) { BIO_printf(bio_err, "Error: client did not send PSK identity\n"); goto out_err; } if (s_debug) BIO_printf(bio_s_out, "identity_len=%d identity=%s\n", (int)strlen(identity), identity); /* here we could lookup the given identity e.g. from a database */ if (strcmp(identity, psk_identity) != 0) { BIO_printf(bio_s_out, "PSK warning: client identity not what we expected" " (got '%s' expected '%s')\n", identity, psk_identity); } else { if (s_debug) BIO_printf(bio_s_out, "PSK client identity found\n"); } /* convert the PSK key to binary */ key = OPENSSL_hexstr2buf(psk_key, &key_len); if (key == NULL) { BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", psk_key); return 0; } if (key_len > (int)max_psk_len) { BIO_printf(bio_err, "psk buffer of callback is too small (%d) for key (%ld)\n", max_psk_len, key_len); OPENSSL_free(key); return 0; } memcpy(psk, key, key_len); OPENSSL_free(key); if (s_debug) BIO_printf(bio_s_out, "fetched PSK len=%ld\n", key_len); return key_len; out_err: if (s_debug) BIO_printf(bio_err, "Error in PSK server callback\n"); (void)BIO_flush(bio_err); (void)BIO_flush(bio_s_out); return 0; } #endif static int psk_find_session_cb(SSL *ssl, const unsigned char *identity, size_t identity_len, SSL_SESSION **sess) { SSL_SESSION *tmpsess = NULL; unsigned char *key; long key_len; const SSL_CIPHER *cipher = NULL; if (strlen(psk_identity) != identity_len || memcmp(psk_identity, identity, identity_len) != 0) { *sess = NULL; return 1; } if (psksess != NULL) { SSL_SESSION_up_ref(psksess); *sess = psksess; return 1; } key = OPENSSL_hexstr2buf(psk_key, &key_len); if (key == NULL) { BIO_printf(bio_err, "Could not convert PSK key '%s' to buffer\n", psk_key); return 0; } /* We default to SHA256 */ cipher = SSL_CIPHER_find(ssl, tls13_aes128gcmsha256_id); if (cipher == NULL) { BIO_printf(bio_err, "Error finding suitable ciphersuite\n"); OPENSSL_free(key); return 0; } tmpsess = SSL_SESSION_new(); if (tmpsess == NULL || !SSL_SESSION_set1_master_key(tmpsess, key, key_len) || !SSL_SESSION_set_cipher(tmpsess, cipher) || !SSL_SESSION_set_protocol_version(tmpsess, SSL_version(ssl))) { OPENSSL_free(key); return 0; } OPENSSL_free(key); *sess = tmpsess; return 1; } #ifndef OPENSSL_NO_SRP /* This is a context that we pass to callbacks */ typedef struct srpsrvparm_st { char *login; SRP_VBASE *vb; SRP_user_pwd *user; } srpsrvparm; static srpsrvparm srp_callback_parm; /* * This callback pretends to require some asynchronous logic in order to * obtain a verifier. When the callback is called for a new connection we * return with a negative value. This will provoke the accept etc to return * with an LOOKUP_X509. The main logic of the reinvokes the suspended call * (which would normally occur after a worker has finished) and we set the * user parameters. */ static int ssl_srp_server_param_cb(SSL *s, int *ad, void *arg) { srpsrvparm *p = (srpsrvparm *) arg; int ret = SSL3_AL_FATAL; if (p->login == NULL && p->user == NULL) { p->login = SSL_get_srp_username(s); BIO_printf(bio_err, "SRP username = \"%s\"\n", p->login); return -1; } if (p->user == NULL) { BIO_printf(bio_err, "User %s doesn't exist\n", p->login); goto err; } if (SSL_set_srp_server_param (s, p->user->N, p->user->g, p->user->s, p->user->v, p->user->info) < 0) { *ad = SSL_AD_INTERNAL_ERROR; goto err; } BIO_printf(bio_err, "SRP parameters set: username = \"%s\" info=\"%s\" \n", p->login, p->user->info); ret = SSL_ERROR_NONE; err: SRP_user_pwd_free(p->user); p->user = NULL; p->login = NULL; return ret; } #endif static int local_argc = 0; static char **local_argv; #ifdef CHARSET_EBCDIC static int ebcdic_new(BIO *bi); static int ebcdic_free(BIO *a); static int ebcdic_read(BIO *b, char *out, int outl); static int ebcdic_write(BIO *b, const char *in, int inl); static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr); static int ebcdic_gets(BIO *bp, char *buf, int size); static int ebcdic_puts(BIO *bp, const char *str); # define BIO_TYPE_EBCDIC_FILTER (18|0x0200) static BIO_METHOD *methods_ebcdic = NULL; /* This struct is "unwarranted chumminess with the compiler." */ typedef struct { size_t alloced; char buff[1]; } EBCDIC_OUTBUFF; static const BIO_METHOD *BIO_f_ebcdic_filter() { if (methods_ebcdic == NULL) { methods_ebcdic = BIO_meth_new(BIO_TYPE_EBCDIC_FILTER, "EBCDIC/ASCII filter"); if (methods_ebcdic == NULL || !BIO_meth_set_write(methods_ebcdic, ebcdic_write) || !BIO_meth_set_read(methods_ebcdic, ebcdic_read) || !BIO_meth_set_puts(methods_ebcdic, ebcdic_puts) || !BIO_meth_set_gets(methods_ebcdic, ebcdic_gets) || !BIO_meth_set_ctrl(methods_ebcdic, ebcdic_ctrl) || !BIO_meth_set_create(methods_ebcdic, ebcdic_new) || !BIO_meth_set_destroy(methods_ebcdic, ebcdic_free)) return NULL; } return methods_ebcdic; } static int ebcdic_new(BIO *bi) { EBCDIC_OUTBUFF *wbuf; wbuf = app_malloc(sizeof(*wbuf) + 1024, "ebcdic wbuf"); wbuf->alloced = 1024; wbuf->buff[0] = '\0'; BIO_set_data(bi, wbuf); BIO_set_init(bi, 1); return 1; } static int ebcdic_free(BIO *a) { EBCDIC_OUTBUFF *wbuf; if (a == NULL) return 0; wbuf = BIO_get_data(a); OPENSSL_free(wbuf); BIO_set_data(a, NULL); BIO_set_init(a, 0); return 1; } static int ebcdic_read(BIO *b, char *out, int outl) { int ret = 0; BIO *next = BIO_next(b); if (out == NULL || outl == 0) return 0; if (next == NULL) return 0; ret = BIO_read(next, out, outl); if (ret > 0) ascii2ebcdic(out, out, ret); return ret; } static int ebcdic_write(BIO *b, const char *in, int inl) { EBCDIC_OUTBUFF *wbuf; BIO *next = BIO_next(b); int ret = 0; int num; if ((in == NULL) || (inl <= 0)) return 0; if (next == NULL) return 0; wbuf = (EBCDIC_OUTBUFF *) BIO_get_data(b); if (inl > (num = wbuf->alloced)) { num = num + num; /* double the size */ if (num < inl) num = inl; OPENSSL_free(wbuf); wbuf = app_malloc(sizeof(*wbuf) + num, "grow ebcdic wbuf"); wbuf->alloced = num; wbuf->buff[0] = '\0'; BIO_set_data(b, wbuf); } ebcdic2ascii(wbuf->buff, in, inl); ret = BIO_write(next, wbuf->buff, inl); return ret; } static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr) { long ret; BIO *next = BIO_next(b); if (next == NULL) return 0; switch (cmd) { case BIO_CTRL_DUP: ret = 0L; break; default: ret = BIO_ctrl(next, cmd, num, ptr); break; } return ret; } static int ebcdic_gets(BIO *bp, char *buf, int size) { int i, ret = 0; BIO *next = BIO_next(bp); if (next == NULL) return 0; /* return(BIO_gets(bp->next_bio,buf,size));*/ for (i = 0; i < size - 1; ++i) { ret = ebcdic_read(bp, &buf[i], 1); if (ret <= 0) break; else if (buf[i] == '\n') { ++i; break; } } if (i < size) buf[i] = '\0'; return (ret < 0 && i == 0) ? ret : i; } static int ebcdic_puts(BIO *bp, const char *str) { if (BIO_next(bp) == NULL) return 0; return ebcdic_write(bp, str, strlen(str)); } #endif /* This is a context that we pass to callbacks */ typedef struct tlsextctx_st { char *servername; BIO *biodebug; int extension_error; } tlsextctx; static int ssl_servername_cb(SSL *s, int *ad, void *arg) { tlsextctx *p = (tlsextctx *) arg; const char *servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); if (servername != NULL && p->biodebug != NULL) { const char *cp = servername; unsigned char uc; BIO_printf(p->biodebug, "Hostname in TLS extension: \""); while ((uc = *cp++) != 0) BIO_printf(p->biodebug, isascii(uc) && isprint(uc) ? "%c" : "\\x%02x", uc); BIO_printf(p->biodebug, "\"\n"); } if (p->servername == NULL) return SSL_TLSEXT_ERR_NOACK; if (servername != NULL) { if (strcasecmp(servername, p->servername)) return p->extension_error; if (ctx2 != NULL) { BIO_printf(p->biodebug, "Switching server context.\n"); SSL_set_SSL_CTX(s, ctx2); } } return SSL_TLSEXT_ERR_OK; } /* Structure passed to cert status callback */ typedef struct tlsextstatusctx_st { int timeout; /* File to load OCSP Response from (or NULL if no file) */ char *respin; /* Default responder to use */ char *host, *path, *port; int use_ssl; int verbose; } tlsextstatusctx; static tlsextstatusctx tlscstatp = { -1 }; #ifndef OPENSSL_NO_OCSP /* * Helper function to get an OCSP_RESPONSE from a responder. This is a * simplified version. It examines certificates each time and makes one OCSP * responder query for each request. A full version would store details such as * the OCSP certificate IDs and minimise the number of OCSP responses by caching * them until they were considered "expired". */ static int get_ocsp_resp_from_responder(SSL *s, tlsextstatusctx *srctx, OCSP_RESPONSE **resp) { char *host = NULL, *port = NULL, *path = NULL; int use_ssl; STACK_OF(OPENSSL_STRING) *aia = NULL; X509 *x = NULL; X509_STORE_CTX *inctx = NULL; X509_OBJECT *obj; OCSP_REQUEST *req = NULL; OCSP_CERTID *id = NULL; STACK_OF(X509_EXTENSION) *exts; int ret = SSL_TLSEXT_ERR_NOACK; int i; /* Build up OCSP query from server certificate */ x = SSL_get_certificate(s); aia = X509_get1_ocsp(x); if (aia != NULL) { if (!OCSP_parse_url(sk_OPENSSL_STRING_value(aia, 0), &host, &port, &path, &use_ssl)) { BIO_puts(bio_err, "cert_status: can't parse AIA URL\n"); goto err; } if (srctx->verbose) BIO_printf(bio_err, "cert_status: AIA URL: %s\n", sk_OPENSSL_STRING_value(aia, 0)); } else { if (srctx->host == NULL) { BIO_puts(bio_err, "cert_status: no AIA and no default responder URL\n"); goto done; } host = srctx->host; path = srctx->path; port = srctx->port; use_ssl = srctx->use_ssl; } inctx = X509_STORE_CTX_new(); if (inctx == NULL) goto err; if (!X509_STORE_CTX_init(inctx, SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)), NULL, NULL)) goto err; obj = X509_STORE_CTX_get_obj_by_subject(inctx, X509_LU_X509, X509_get_issuer_name(x)); if (obj == NULL) { BIO_puts(bio_err, "cert_status: Can't retrieve issuer certificate.\n"); goto done; } id = OCSP_cert_to_id(NULL, x, X509_OBJECT_get0_X509(obj)); X509_OBJECT_free(obj); if (id == NULL) goto err; req = OCSP_REQUEST_new(); if (req == NULL) goto err; if (!OCSP_request_add0_id(req, id)) goto err; id = NULL; /* Add any extensions to the request */ SSL_get_tlsext_status_exts(s, &exts); for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) { X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i); if (!OCSP_REQUEST_add_ext(req, ext, -1)) goto err; } *resp = process_responder(req, host, path, port, use_ssl, NULL, srctx->timeout); if (*resp == NULL) { BIO_puts(bio_err, "cert_status: error querying responder\n"); goto done; } ret = SSL_TLSEXT_ERR_OK; goto done; err: ret = SSL_TLSEXT_ERR_ALERT_FATAL; done: /* * If we parsed aia we need to free; otherwise they were copied and we * don't */ if (aia != NULL) { OPENSSL_free(host); OPENSSL_free(path); OPENSSL_free(port); X509_email_free(aia); } OCSP_CERTID_free(id); OCSP_REQUEST_free(req); X509_STORE_CTX_free(inctx); return ret; } /* * Certificate Status callback. This is called when a client includes a * certificate status request extension. The response is either obtained from a * file, or from an OCSP responder. */ static int cert_status_cb(SSL *s, void *arg) { tlsextstatusctx *srctx = arg; OCSP_RESPONSE *resp = NULL; unsigned char *rspder = NULL; int rspderlen; int ret = SSL_TLSEXT_ERR_ALERT_FATAL; if (srctx->verbose) BIO_puts(bio_err, "cert_status: callback called\n"); if (srctx->respin != NULL) { BIO *derbio = bio_open_default(srctx->respin, 'r', FORMAT_ASN1); if (derbio == NULL) { BIO_puts(bio_err, "cert_status: Cannot open OCSP response file\n"); goto err; } resp = d2i_OCSP_RESPONSE_bio(derbio, NULL); BIO_free(derbio); if (resp == NULL) { BIO_puts(bio_err, "cert_status: Error reading OCSP response\n"); goto err; } } else { ret = get_ocsp_resp_from_responder(s, srctx, &resp); if (ret != SSL_TLSEXT_ERR_OK) goto err; } rspderlen = i2d_OCSP_RESPONSE(resp, &rspder); if (rspderlen <= 0) goto err; SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen); if (srctx->verbose) { BIO_puts(bio_err, "cert_status: ocsp response sent:\n"); OCSP_RESPONSE_print(bio_err, resp, 2); } ret = SSL_TLSEXT_ERR_OK; err: if (ret != SSL_TLSEXT_ERR_OK) ERR_print_errors(bio_err); OCSP_RESPONSE_free(resp); return ret; } #endif #ifndef OPENSSL_NO_NEXTPROTONEG /* This is the context that we pass to next_proto_cb */ typedef struct tlsextnextprotoctx_st { unsigned char *data; size_t len; } tlsextnextprotoctx; static int next_proto_cb(SSL *s, const unsigned char **data, unsigned int *len, void *arg) { tlsextnextprotoctx *next_proto = arg; *data = next_proto->data; *len = next_proto->len; return SSL_TLSEXT_ERR_OK; } #endif /* ndef OPENSSL_NO_NEXTPROTONEG */ /* This the context that we pass to alpn_cb */ typedef struct tlsextalpnctx_st { unsigned char *data; size_t len; } tlsextalpnctx; static int alpn_cb(SSL *s, const unsigned char **out, unsigned char *outlen, const unsigned char *in, unsigned int inlen, void *arg) { tlsextalpnctx *alpn_ctx = arg; if (!s_quiet) { /* We can assume that |in| is syntactically valid. */ unsigned int i; BIO_printf(bio_s_out, "ALPN protocols advertised by the client: "); for (i = 0; i < inlen;) { if (i) BIO_write(bio_s_out, ", ", 2); BIO_write(bio_s_out, &in[i + 1], in[i]); i += in[i] + 1; } BIO_write(bio_s_out, "\n", 1); } if (SSL_select_next_proto ((unsigned char **)out, outlen, alpn_ctx->data, alpn_ctx->len, in, inlen) != OPENSSL_NPN_NEGOTIATED) { return SSL_TLSEXT_ERR_NOACK; } if (!s_quiet) { BIO_printf(bio_s_out, "ALPN protocols selected: "); BIO_write(bio_s_out, *out, *outlen); BIO_write(bio_s_out, "\n", 1); } return SSL_TLSEXT_ERR_OK; } static int not_resumable_sess_cb(SSL *s, int is_forward_secure) { /* disable resumption for sessions with forward secure ciphers */ return is_forward_secure; } typedef enum OPTION_choice { OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, OPT_ENGINE, OPT_4, OPT_6, OPT_ACCEPT, OPT_PORT, OPT_UNIX, OPT_UNLINK, OPT_NACCEPT, OPT_VERIFY, OPT_NAMEOPT, OPT_UPPER_V_VERIFY, OPT_CONTEXT, OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SERVERINFO, OPT_CERTFORM, OPT_KEY, OPT_KEYFORM, OPT_PASS, OPT_CERT_CHAIN, OPT_DHPARAM, OPT_DCERTFORM, OPT_DCERT, OPT_DKEYFORM, OPT_DPASS, OPT_DKEY, OPT_DCERT_CHAIN, OPT_NOCERT, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, OPT_VERIFYCAPATH, OPT_NO_CACHE, OPT_EXT_CACHE, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NBIO, OPT_NBIO_TEST, OPT_IGN_EOF, OPT_NO_IGN_EOF, OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_STATUS_VERBOSE, OPT_STATUS_TIMEOUT, OPT_STATUS_URL, OPT_STATUS_FILE, OPT_MSG, OPT_MSGFILE, OPT_TRACE, OPT_SECURITY_DEBUG, OPT_SECURITY_DEBUG_VERBOSE, OPT_STATE, OPT_CRLF, OPT_QUIET, OPT_BRIEF, OPT_NO_DHE, OPT_NO_RESUME_EPHEMERAL, OPT_PSK_IDENTITY, OPT_PSK_HINT, OPT_PSK, OPT_PSK_SESS, OPT_SRPVFILE, OPT_SRPUSERSEED, OPT_REV, OPT_WWW, OPT_UPPER_WWW, OPT_HTTP, OPT_ASYNC, OPT_SSL_CONFIG, OPT_MAX_SEND_FRAG, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF, OPT_SSL3, OPT_TLS1_3, OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, OPT_DTLS1_2, OPT_SCTP, OPT_TIMEOUT, OPT_MTU, OPT_LISTEN, OPT_STATELESS, OPT_ID_PREFIX, OPT_SERVERNAME, OPT_SERVERNAME_FATAL, OPT_CERT2, OPT_KEY2, OPT_NEXTPROTONEG, OPT_ALPN, OPT_SRTP_PROFILES, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_KEYLOG_FILE, OPT_MAX_EARLY, OPT_RECV_MAX_EARLY, OPT_EARLY_DATA, OPT_S_NUM_TICKETS, OPT_ANTI_REPLAY, OPT_NO_ANTI_REPLAY, OPT_SCTP_LABEL_BUG, OPT_R_ENUM, OPT_S_ENUM, OPT_V_ENUM, OPT_X_ENUM } OPTION_CHOICE; const OPTIONS s_server_options[] = { {"help", OPT_HELP, '-', "Display this summary"}, {"port", OPT_PORT, 'p', "TCP/IP port to listen on for connections (default is " PORT ")"}, {"accept", OPT_ACCEPT, 's', "TCP/IP optional host and port to listen on for connections (default is *:" PORT ")"}, #ifdef AF_UNIX {"unix", OPT_UNIX, 's', "Unix domain socket to accept on"}, #endif {"4", OPT_4, '-', "Use IPv4 only"}, {"6", OPT_6, '-', "Use IPv6 only"}, #ifdef AF_UNIX {"unlink", OPT_UNLINK, '-', "For -unix, unlink existing socket first"}, #endif {"context", OPT_CONTEXT, 's', "Set session ID context"}, {"verify", OPT_VERIFY, 'n', "Turn on peer certificate verification"}, {"Verify", OPT_UPPER_V_VERIFY, 'n', "Turn on peer certificate verification, must have a cert"}, {"cert", OPT_CERT, '<', "Certificate file to use; default is " TEST_CERT}, {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"}, {"naccept", OPT_NACCEPT, 'p', "Terminate after #num connections"}, {"serverinfo", OPT_SERVERINFO, 's', "PEM serverinfo file for certificate"}, {"certform", OPT_CERTFORM, 'F', "Certificate format (PEM or DER) PEM default"}, {"key", OPT_KEY, 's', "Private Key if not in -cert; default is " TEST_CERT}, {"keyform", OPT_KEYFORM, 'f', "Key format (PEM, DER or ENGINE) PEM default"}, {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, {"dcert", OPT_DCERT, '<', "Second certificate file to use (usually for DSA)"}, {"dhparam", OPT_DHPARAM, '<', "DH parameters file to use"}, {"dcertform", OPT_DCERTFORM, 'F', "Second certificate format (PEM or DER) PEM default"}, {"dkey", OPT_DKEY, '<', "Second private key file to use (usually for DSA)"}, {"dkeyform", OPT_DKEYFORM, 'F', "Second key format (PEM, DER or ENGINE) PEM default"}, {"dpass", OPT_DPASS, 's', "Second private key file pass phrase source"}, {"nbio_test", OPT_NBIO_TEST, '-', "Test with the non-blocking test bio"}, {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, {"debug", OPT_DEBUG, '-', "Print more output"}, {"msg", OPT_MSG, '-', "Show protocol messages"}, {"msgfile", OPT_MSGFILE, '>', "File to send output of -msg or -trace, instead of stdout"}, {"state", OPT_STATE, '-', "Print the SSL states"}, {"CAfile", OPT_CAFILE, '<', "PEM format file of CA's"}, {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, {"no-CAfile", OPT_NOCAFILE, '-', "Do not load the default certificates file"}, {"no-CApath", OPT_NOCAPATH, '-', "Do not load certificates from the default certificates directory"}, {"nocert", OPT_NOCERT, '-', "Don't use any certificates (Anon-DH)"}, {"quiet", OPT_QUIET, '-', "No server output"}, {"no_resume_ephemeral", OPT_NO_RESUME_EPHEMERAL, '-', "Disable caching and tickets if ephemeral (EC)DH is used"}, {"www", OPT_WWW, '-', "Respond to a 'GET /' with a status page"}, {"WWW", OPT_UPPER_WWW, '-', "Respond to a 'GET with the file ./path"}, {"servername", OPT_SERVERNAME, 's', "Servername for HostName TLS extension"}, {"servername_fatal", OPT_SERVERNAME_FATAL, '-', "mismatch send fatal alert (default warning alert)"}, {"cert2", OPT_CERT2, '<', "Certificate file to use for servername; default is" TEST_CERT2}, {"key2", OPT_KEY2, '<', "-Private Key file to use for servername if not in -cert2"}, {"tlsextdebug", OPT_TLSEXTDEBUG, '-', "Hex dump of all TLS extensions received"}, {"HTTP", OPT_HTTP, '-', "Like -WWW but ./path includes HTTP headers"}, {"id_prefix", OPT_ID_PREFIX, 's', "Generate SSL/TLS session IDs prefixed by arg"}, OPT_R_OPTIONS, {"keymatexport", OPT_KEYMATEXPORT, 's', "Export keying material using label"}, {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', "Export len bytes of keying material (default 20)"}, {"CRL", OPT_CRL, '<', "CRL file to use"}, {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"}, {"cert_chain", OPT_CERT_CHAIN, '<', "certificate chain file in PEM format"}, {"dcert_chain", OPT_DCERT_CHAIN, '<', "second certificate chain file in PEM format"}, {"chainCApath", OPT_CHAINCAPATH, '/', "use dir as certificate store path to build CA certificate chain"}, {"verifyCApath", OPT_VERIFYCAPATH, '/', "use dir as certificate store path to verify CA certificate"}, {"no_cache", OPT_NO_CACHE, '-', "Disable session cache"}, {"ext_cache", OPT_EXT_CACHE, '-', "Disable internal cache, setup and use external cache"}, {"CRLform", OPT_CRLFORM, 'F', "CRL format (PEM or DER) PEM is default"}, {"verify_return_error", OPT_VERIFY_RET_ERROR, '-', "Close connection on verification error"}, {"verify_quiet", OPT_VERIFY_QUIET, '-', "No verify output except verify errors"}, {"build_chain", OPT_BUILD_CHAIN, '-', "Build certificate chain"}, {"chainCAfile", OPT_CHAINCAFILE, '<', "CA file for certificate chain (PEM format)"}, {"verifyCAfile", OPT_VERIFYCAFILE, '<', "CA file for certificate verification (PEM format)"}, {"ign_eof", OPT_IGN_EOF, '-', "ignore input eof (default when -quiet)"}, {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Do not ignore input eof"}, #ifndef OPENSSL_NO_OCSP {"status", OPT_STATUS, '-', "Request certificate status from server"}, {"status_verbose", OPT_STATUS_VERBOSE, '-', "Print more output in certificate status callback"}, {"status_timeout", OPT_STATUS_TIMEOUT, 'n', "Status request responder timeout"}, {"status_url", OPT_STATUS_URL, 's', "Status request fallback URL"}, {"status_file", OPT_STATUS_FILE, '<', "File containing DER encoded OCSP Response"}, #endif #ifndef OPENSSL_NO_SSL_TRACE {"trace", OPT_TRACE, '-', "trace protocol messages"}, #endif {"security_debug", OPT_SECURITY_DEBUG, '-', "Print output from SSL/TLS security framework"}, {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', "Print more output from SSL/TLS security framework"}, {"brief", OPT_BRIEF, '-', "Restrict output to brief summary of connection parameters"}, {"rev", OPT_REV, '-', "act as a simple test server which just sends back with the received text reversed"}, {"async", OPT_ASYNC, '-', "Operate in asynchronous mode"}, {"ssl_config", OPT_SSL_CONFIG, 's', "Configure SSL_CTX using the configuration 'val'"}, {"max_send_frag", OPT_MAX_SEND_FRAG, 'p', "Maximum Size of send frames "}, {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'p', "Size used to split data for encrypt pipelines"}, {"max_pipelines", OPT_MAX_PIPELINES, 'p', "Maximum number of encrypt/decrypt pipelines to be used"}, {"read_buf", OPT_READ_BUF, 'p', "Default read buffer size to be used for connections"}, OPT_S_OPTIONS, OPT_V_OPTIONS, OPT_X_OPTIONS, {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity to expect"}, #ifndef OPENSSL_NO_PSK {"psk_hint", OPT_PSK_HINT, 's', "PSK identity hint to use"}, #endif {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, {"psk_session", OPT_PSK_SESS, '<', "File to read PSK SSL session from"}, #ifndef OPENSSL_NO_SRP {"srpvfile", OPT_SRPVFILE, '<', "The verifier file for SRP"}, {"srpuserseed", OPT_SRPUSERSEED, 's', "A seed string for a default user salt"}, #endif #ifndef OPENSSL_NO_SSL3 {"ssl3", OPT_SSL3, '-', "Just talk SSLv3"}, #endif #ifndef OPENSSL_NO_TLS1 {"tls1", OPT_TLS1, '-', "Just talk TLSv1"}, #endif #ifndef OPENSSL_NO_TLS1_1 {"tls1_1", OPT_TLS1_1, '-', "Just talk TLSv1.1"}, #endif #ifndef OPENSSL_NO_TLS1_2 {"tls1_2", OPT_TLS1_2, '-', "just talk TLSv1.2"}, #endif #ifndef OPENSSL_NO_TLS1_3 {"tls1_3", OPT_TLS1_3, '-', "just talk TLSv1.3"}, #endif #ifndef OPENSSL_NO_DTLS {"dtls", OPT_DTLS, '-', "Use any DTLS version"}, {"timeout", OPT_TIMEOUT, '-', "Enable timeouts"}, {"mtu", OPT_MTU, 'p', "Set link layer MTU"}, {"listen", OPT_LISTEN, '-', "Listen for a DTLS ClientHello with a cookie and then connect"}, #endif {"stateless", OPT_STATELESS, '-', "Require TLSv1.3 cookies"}, #ifndef OPENSSL_NO_DTLS1 {"dtls1", OPT_DTLS1, '-', "Just talk DTLSv1"}, #endif #ifndef OPENSSL_NO_DTLS1_2 {"dtls1_2", OPT_DTLS1_2, '-', "Just talk DTLSv1.2"}, #endif #ifndef OPENSSL_NO_SCTP {"sctp", OPT_SCTP, '-', "Use SCTP"}, {"sctp_label_bug", OPT_SCTP_LABEL_BUG, '-', "Enable SCTP label length bug"}, #endif #ifndef OPENSSL_NO_DH {"no_dhe", OPT_NO_DHE, '-', "Disable ephemeral DH"}, #endif #ifndef OPENSSL_NO_NEXTPROTONEG {"nextprotoneg", OPT_NEXTPROTONEG, 's', "Set the advertised protocols for the NPN extension (comma-separated list)"}, #endif #ifndef OPENSSL_NO_SRTP {"use_srtp", OPT_SRTP_PROFILES, 's', "Offer SRTP key management with a colon-separated profile list"}, #endif {"alpn", OPT_ALPN, 's', "Set the advertised protocols for the ALPN extension (comma-separated list)"}, #ifndef OPENSSL_NO_ENGINE {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, #endif {"keylogfile", OPT_KEYLOG_FILE, '>', "Write TLS secrets to file"}, {"max_early_data", OPT_MAX_EARLY, 'n', "The maximum number of bytes of early data as advertised in tickets"}, {"recv_max_early_data", OPT_RECV_MAX_EARLY, 'n', "The maximum number of bytes of early data (hard limit)"}, {"early_data", OPT_EARLY_DATA, '-', "Attempt to read early data"}, {"num_tickets", OPT_S_NUM_TICKETS, 'n', "The number of TLSv1.3 session tickets that a server will automatically issue" }, {"anti_replay", OPT_ANTI_REPLAY, '-', "Switch on anti-replay protection (default)"}, {"no_anti_replay", OPT_NO_ANTI_REPLAY, '-', "Switch off anti-replay protection"}, {NULL, OPT_EOF, 0, NULL} }; #define IS_PROT_FLAG(o) \ (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ || o == OPT_TLS1_3 || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) int s_server_main(int argc, char *argv[]) { ENGINE *engine = NULL; EVP_PKEY *s_key = NULL, *s_dkey = NULL; SSL_CONF_CTX *cctx = NULL; const SSL_METHOD *meth = TLS_server_method(); SSL_EXCERT *exc = NULL; STACK_OF(OPENSSL_STRING) *ssl_args = NULL; STACK_OF(X509) *s_chain = NULL, *s_dchain = NULL; STACK_OF(X509_CRL) *crls = NULL; X509 *s_cert = NULL, *s_dcert = NULL; X509_VERIFY_PARAM *vpm = NULL; const char *CApath = NULL, *CAfile = NULL, *chCApath = NULL, *chCAfile = NULL; char *dpassarg = NULL, *dpass = NULL; char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; char *crl_file = NULL, *prog; #ifdef AF_UNIX int unlink_unix_path = 0; #endif do_server_cb server_cb; int vpmtouched = 0, build_chain = 0, no_cache = 0, ext_cache = 0; #ifndef OPENSSL_NO_DH char *dhfile = NULL; int no_dhe = 0; #endif int nocert = 0, ret = 1; int noCApath = 0, noCAfile = 0; int s_cert_format = FORMAT_PEM, s_key_format = FORMAT_PEM; int s_dcert_format = FORMAT_PEM, s_dkey_format = FORMAT_PEM; int rev = 0, naccept = -1, sdebug = 0; int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM, protocol = 0; int state = 0, crl_format = FORMAT_PEM, crl_download = 0; char *host = NULL; char *port = BUF_strdup(PORT); unsigned char *context = NULL; OPTION_CHOICE o; EVP_PKEY *s_key2 = NULL; X509 *s_cert2 = NULL; tlsextctx tlsextcbp = { NULL, NULL, SSL_TLSEXT_ERR_ALERT_WARNING }; const char *ssl_config = NULL; int read_buf_len = 0; #ifndef OPENSSL_NO_NEXTPROTONEG const char *next_proto_neg_in = NULL; tlsextnextprotoctx next_proto = { NULL, 0 }; #endif const char *alpn_in = NULL; tlsextalpnctx alpn_ctx = { NULL, 0 }; #ifndef OPENSSL_NO_PSK /* by default do not send a PSK identity hint */ char *psk_identity_hint = NULL; #endif char *p; #ifndef OPENSSL_NO_SRP char *srpuserseed = NULL; char *srp_verifier_file = NULL; #endif #ifndef OPENSSL_NO_SRTP char *srtp_profiles = NULL; #endif int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; int s_server_verify = SSL_VERIFY_NONE; int s_server_session_id_context = 1; /* anything will do */ const char *s_cert_file = TEST_CERT, *s_key_file = NULL, *s_chain_file = NULL; const char *s_cert_file2 = TEST_CERT2, *s_key_file2 = NULL; char *s_dcert_file = NULL, *s_dkey_file = NULL, *s_dchain_file = NULL; #ifndef OPENSSL_NO_OCSP int s_tlsextstatus = 0; #endif int no_resume_ephemeral = 0; unsigned int max_send_fragment = 0; unsigned int split_send_fragment = 0, max_pipelines = 0; const char *s_serverinfo_file = NULL; const char *keylog_file = NULL; int max_early_data = -1, recv_max_early_data = -1; char *psksessf = NULL; #ifndef OPENSSL_NO_SCTP int sctp_label_bug = 0; #endif /* Init of few remaining global variables */ local_argc = argc; local_argv = argv; ctx = ctx2 = NULL; s_nbio = s_nbio_test = 0; www = 0; bio_s_out = NULL; s_debug = 0; s_msg = 0; s_quiet = 0; s_brief = 0; async = 0; cctx = SSL_CONF_CTX_new(); vpm = X509_VERIFY_PARAM_new(); if (cctx == NULL || vpm == NULL) goto end; SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_SERVER | SSL_CONF_FLAG_CMDLINE); prog = opt_init(argc, argv, s_server_options); while ((o = opt_next()) != OPT_EOF) { if (IS_PROT_FLAG(o) && ++prot_opt > 1) { BIO_printf(bio_err, "Cannot supply multiple protocol flags\n"); goto end; } if (IS_NO_PROT_FLAG(o)) no_prot_opt++; if (prot_opt == 1 && no_prot_opt) { BIO_printf(bio_err, "Cannot supply both a protocol flag and '-no_'\n"); goto end; } switch (o) { case OPT_EOF: case OPT_ERR: opthelp: BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); goto end; case OPT_HELP: opt_help(s_server_options); ret = 0; goto end; case OPT_4: #ifdef AF_UNIX if (socket_family == AF_UNIX) { OPENSSL_free(host); host = NULL; OPENSSL_free(port); port = NULL; } #endif socket_family = AF_INET; break; case OPT_6: if (1) { #ifdef AF_INET6 #ifdef AF_UNIX if (socket_family == AF_UNIX) { OPENSSL_free(host); host = NULL; OPENSSL_free(port); port = NULL; } #endif socket_family = AF_INET6; } else { #endif BIO_printf(bio_err, "%s: IPv6 domain sockets unsupported\n", prog); goto end; } break; case OPT_PORT: #ifdef AF_UNIX if (socket_family == AF_UNIX) { socket_family = AF_UNSPEC; } #endif OPENSSL_free(port); port = NULL; OPENSSL_free(host); host = NULL; if (BIO_parse_hostserv(opt_arg(), NULL, &port, BIO_PARSE_PRIO_SERV) < 1) { BIO_printf(bio_err, "%s: -port argument malformed or ambiguous\n", port); goto end; } break; case OPT_ACCEPT: #ifdef AF_UNIX if (socket_family == AF_UNIX) { socket_family = AF_UNSPEC; } #endif OPENSSL_free(port); port = NULL; OPENSSL_free(host); host = NULL; if (BIO_parse_hostserv(opt_arg(), &host, &port, BIO_PARSE_PRIO_SERV) < 1) { BIO_printf(bio_err, "%s: -accept argument malformed or ambiguous\n", port); goto end; } break; #ifdef AF_UNIX case OPT_UNIX: socket_family = AF_UNIX; OPENSSL_free(host); host = BUF_strdup(opt_arg()); OPENSSL_free(port); port = NULL; break; case OPT_UNLINK: unlink_unix_path = 1; break; #endif case OPT_NACCEPT: naccept = atol(opt_arg()); break; case OPT_VERIFY: s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE; verify_args.depth = atoi(opt_arg()); if (!s_quiet) BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); break; case OPT_UPPER_V_VERIFY: s_server_verify = SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT | SSL_VERIFY_CLIENT_ONCE; verify_args.depth = atoi(opt_arg()); if (!s_quiet) BIO_printf(bio_err, "verify depth is %d, must return a certificate\n", verify_args.depth); break; case OPT_CONTEXT: context = (unsigned char *)opt_arg(); break; case OPT_CERT: s_cert_file = opt_arg(); break; case OPT_NAMEOPT: if (!set_nameopt(opt_arg())) goto end; break; case OPT_CRL: crl_file = opt_arg(); break; case OPT_CRL_DOWNLOAD: crl_download = 1; break; case OPT_SERVERINFO: s_serverinfo_file = opt_arg(); break; case OPT_CERTFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_cert_format)) goto opthelp; break; case OPT_KEY: s_key_file = opt_arg(); break; case OPT_KEYFORM: if (!opt_format(opt_arg(), OPT_FMT_ANY, &s_key_format)) goto opthelp; break; case OPT_PASS: passarg = opt_arg(); break; case OPT_CERT_CHAIN: s_chain_file = opt_arg(); break; case OPT_DHPARAM: #ifndef OPENSSL_NO_DH dhfile = opt_arg(); #endif break; case OPT_DCERTFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dcert_format)) goto opthelp; break; case OPT_DCERT: s_dcert_file = opt_arg(); break; case OPT_DKEYFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &s_dkey_format)) goto opthelp; break; case OPT_DPASS: dpassarg = opt_arg(); break; case OPT_DKEY: s_dkey_file = opt_arg(); break; case OPT_DCERT_CHAIN: s_dchain_file = opt_arg(); break; case OPT_NOCERT: nocert = 1; break; case OPT_CAPATH: CApath = opt_arg(); break; case OPT_NOCAPATH: noCApath = 1; break; case OPT_CHAINCAPATH: chCApath = opt_arg(); break; case OPT_VERIFYCAPATH: vfyCApath = opt_arg(); break; case OPT_NO_CACHE: no_cache = 1; break; case OPT_EXT_CACHE: ext_cache = 1; break; case OPT_CRLFORM: if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) goto opthelp; break; case OPT_S_CASES: case OPT_S_NUM_TICKETS: case OPT_ANTI_REPLAY: case OPT_NO_ANTI_REPLAY: if (ssl_args == NULL) ssl_args = sk_OPENSSL_STRING_new_null(); if (ssl_args == NULL || !sk_OPENSSL_STRING_push(ssl_args, opt_flag()) || !sk_OPENSSL_STRING_push(ssl_args, opt_arg())) { BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); goto end; } break; case OPT_V_CASES: if (!opt_verify(o, vpm)) goto end; vpmtouched++; break; case OPT_X_CASES: if (!args_excert(o, &exc)) goto end; break; case OPT_VERIFY_RET_ERROR: verify_args.return_error = 1; break; case OPT_VERIFY_QUIET: verify_args.quiet = 1; break; case OPT_BUILD_CHAIN: build_chain = 1; break; case OPT_CAFILE: CAfile = opt_arg(); break; case OPT_NOCAFILE: noCAfile = 1; break; case OPT_CHAINCAFILE: chCAfile = opt_arg(); break; case OPT_VERIFYCAFILE: vfyCAfile = opt_arg(); break; case OPT_NBIO: s_nbio = 1; break; case OPT_NBIO_TEST: s_nbio = s_nbio_test = 1; break; case OPT_IGN_EOF: s_ign_eof = 1; break; case OPT_NO_IGN_EOF: s_ign_eof = 0; break; case OPT_DEBUG: s_debug = 1; break; case OPT_TLSEXTDEBUG: s_tlsextdebug = 1; break; case OPT_STATUS: #ifndef OPENSSL_NO_OCSP s_tlsextstatus = 1; #endif break; case OPT_STATUS_VERBOSE: #ifndef OPENSSL_NO_OCSP s_tlsextstatus = tlscstatp.verbose = 1; #endif break; case OPT_STATUS_TIMEOUT: #ifndef OPENSSL_NO_OCSP s_tlsextstatus = 1; tlscstatp.timeout = atoi(opt_arg()); #endif break; case OPT_STATUS_URL: #ifndef OPENSSL_NO_OCSP s_tlsextstatus = 1; if (!OCSP_parse_url(opt_arg(), &tlscstatp.host, &tlscstatp.port, &tlscstatp.path, &tlscstatp.use_ssl)) { BIO_printf(bio_err, "Error parsing URL\n"); goto end; } #endif break; case OPT_STATUS_FILE: #ifndef OPENSSL_NO_OCSP s_tlsextstatus = 1; tlscstatp.respin = opt_arg(); #endif break; case OPT_MSG: s_msg = 1; break; case OPT_MSGFILE: bio_s_msg = BIO_new_file(opt_arg(), "w"); break; case OPT_TRACE: #ifndef OPENSSL_NO_SSL_TRACE s_msg = 2; #endif break; case OPT_SECURITY_DEBUG: sdebug = 1; break; case OPT_SECURITY_DEBUG_VERBOSE: sdebug = 2; break; case OPT_STATE: state = 1; break; case OPT_CRLF: s_crlf = 1; break; case OPT_QUIET: s_quiet = 1; break; case OPT_BRIEF: s_quiet = s_brief = verify_args.quiet = 1; break; case OPT_NO_DHE: #ifndef OPENSSL_NO_DH no_dhe = 1; #endif break; case OPT_NO_RESUME_EPHEMERAL: no_resume_ephemeral = 1; break; case OPT_PSK_IDENTITY: psk_identity = opt_arg(); break; case OPT_PSK_HINT: #ifndef OPENSSL_NO_PSK psk_identity_hint = opt_arg(); #endif break; case OPT_PSK: for (p = psk_key = opt_arg(); *p; p++) { if (isxdigit(_UC(*p))) continue; BIO_printf(bio_err, "Not a hex number '%s'\n", psk_key); goto end; } break; case OPT_PSK_SESS: psksessf = opt_arg(); break; case OPT_SRPVFILE: #ifndef OPENSSL_NO_SRP srp_verifier_file = opt_arg(); if (min_version < TLS1_VERSION) min_version = TLS1_VERSION; #endif break; case OPT_SRPUSERSEED: #ifndef OPENSSL_NO_SRP srpuserseed = opt_arg(); if (min_version < TLS1_VERSION) min_version = TLS1_VERSION; #endif break; case OPT_REV: rev = 1; break; case OPT_WWW: www = 1; break; case OPT_UPPER_WWW: www = 2; break; case OPT_HTTP: www = 3; break; case OPT_SSL_CONFIG: ssl_config = opt_arg(); break; case OPT_SSL3: min_version = SSL3_VERSION; max_version = SSL3_VERSION; break; case OPT_TLS1_3: min_version = TLS1_3_VERSION; max_version = TLS1_3_VERSION; break; case OPT_TLS1_2: min_version = TLS1_2_VERSION; max_version = TLS1_2_VERSION; break; case OPT_TLS1_1: min_version = TLS1_1_VERSION; max_version = TLS1_1_VERSION; break; case OPT_TLS1: min_version = TLS1_VERSION; max_version = TLS1_VERSION; break; case OPT_DTLS: #ifndef OPENSSL_NO_DTLS meth = DTLS_server_method(); socket_type = SOCK_DGRAM; #endif break; case OPT_DTLS1: #ifndef OPENSSL_NO_DTLS meth = DTLS_server_method(); min_version = DTLS1_VERSION; max_version = DTLS1_VERSION; socket_type = SOCK_DGRAM; #endif break; case OPT_DTLS1_2: #ifndef OPENSSL_NO_DTLS meth = DTLS_server_method(); min_version = DTLS1_2_VERSION; max_version = DTLS1_2_VERSION; socket_type = SOCK_DGRAM; #endif break; case OPT_SCTP: #ifndef OPENSSL_NO_SCTP protocol = IPPROTO_SCTP; #endif break; case OPT_SCTP_LABEL_BUG: #ifndef OPENSSL_NO_SCTP sctp_label_bug = 1; #endif break; case OPT_TIMEOUT: #ifndef OPENSSL_NO_DTLS enable_timeouts = 1; #endif break; case OPT_MTU: #ifndef OPENSSL_NO_DTLS socket_mtu = atol(opt_arg()); #endif break; case OPT_LISTEN: #ifndef OPENSSL_NO_DTLS dtlslisten = 1; #endif break; case OPT_STATELESS: stateless = 1; break; case OPT_ID_PREFIX: session_id_prefix = opt_arg(); break; case OPT_ENGINE: engine = setup_engine(opt_arg(), 1); break; case OPT_R_CASES: if (!opt_rand(o)) goto end; break; case OPT_SERVERNAME: tlsextcbp.servername = opt_arg(); break; case OPT_SERVERNAME_FATAL: tlsextcbp.extension_error = SSL_TLSEXT_ERR_ALERT_FATAL; break; case OPT_CERT2: s_cert_file2 = opt_arg(); break; case OPT_KEY2: s_key_file2 = opt_arg(); break; case OPT_NEXTPROTONEG: # ifndef OPENSSL_NO_NEXTPROTONEG next_proto_neg_in = opt_arg(); #endif break; case OPT_ALPN: alpn_in = opt_arg(); break; case OPT_SRTP_PROFILES: #ifndef OPENSSL_NO_SRTP srtp_profiles = opt_arg(); #endif break; case OPT_KEYMATEXPORT: keymatexportlabel = opt_arg(); break; case OPT_KEYMATEXPORTLEN: keymatexportlen = atoi(opt_arg()); break; case OPT_ASYNC: async = 1; break; case OPT_MAX_SEND_FRAG: max_send_fragment = atoi(opt_arg()); break; case OPT_SPLIT_SEND_FRAG: split_send_fragment = atoi(opt_arg()); break; case OPT_MAX_PIPELINES: max_pipelines = atoi(opt_arg()); break; case OPT_READ_BUF: read_buf_len = atoi(opt_arg()); break; case OPT_KEYLOG_FILE: keylog_file = opt_arg(); break; case OPT_MAX_EARLY: max_early_data = atoi(opt_arg()); if (max_early_data < 0) { BIO_printf(bio_err, "Invalid value for max_early_data\n"); goto end; } break; case OPT_RECV_MAX_EARLY: recv_max_early_data = atoi(opt_arg()); if (recv_max_early_data < 0) { BIO_printf(bio_err, "Invalid value for recv_max_early_data\n"); goto end; } break; case OPT_EARLY_DATA: early_data = 1; if (max_early_data == -1) max_early_data = SSL3_RT_MAX_PLAIN_LENGTH; break; } } argc = opt_num_rest(); argv = opt_rest(); #ifndef OPENSSL_NO_NEXTPROTONEG if (min_version == TLS1_3_VERSION && next_proto_neg_in != NULL) { BIO_printf(bio_err, "Cannot supply -nextprotoneg with TLSv1.3\n"); goto opthelp; } #endif #ifndef OPENSSL_NO_DTLS if (www && socket_type == SOCK_DGRAM) { BIO_printf(bio_err, "Can't use -HTTP, -www or -WWW with DTLS\n"); goto end; } if (dtlslisten && socket_type != SOCK_DGRAM) { BIO_printf(bio_err, "Can only use -listen with DTLS\n"); goto end; } #endif if (stateless && socket_type != SOCK_STREAM) { BIO_printf(bio_err, "Can only use --stateless with TLS\n"); goto end; } #ifdef AF_UNIX if (socket_family == AF_UNIX && socket_type != SOCK_STREAM) { BIO_printf(bio_err, "Can't use unix sockets and datagrams together\n"); goto end; } #endif if (early_data && (www > 0 || rev)) { BIO_printf(bio_err, "Can't use -early_data in combination with -www, -WWW, -HTTP, or -rev\n"); goto end; } #ifndef OPENSSL_NO_SCTP if (protocol == IPPROTO_SCTP) { if (socket_type != SOCK_DGRAM) { BIO_printf(bio_err, "Can't use -sctp without DTLS\n"); goto end; } /* SCTP is unusual. It uses DTLS over a SOCK_STREAM protocol */ socket_type = SOCK_STREAM; } #endif if (!app_passwd(passarg, dpassarg, &pass, &dpass)) { BIO_printf(bio_err, "Error getting password\n"); goto end; } if (s_key_file == NULL) s_key_file = s_cert_file; if (s_key_file2 == NULL) s_key_file2 = s_cert_file2; if (!load_excert(&exc)) goto end; if (nocert == 0) { s_key = load_key(s_key_file, s_key_format, 0, pass, engine, "server certificate private key file"); if (s_key == NULL) { ERR_print_errors(bio_err); goto end; } s_cert = load_cert(s_cert_file, s_cert_format, "server certificate file"); if (s_cert == NULL) { ERR_print_errors(bio_err); goto end; } if (s_chain_file != NULL) { if (!load_certs(s_chain_file, &s_chain, FORMAT_PEM, NULL, "server certificate chain")) goto end; } if (tlsextcbp.servername != NULL) { s_key2 = load_key(s_key_file2, s_key_format, 0, pass, engine, "second server certificate private key file"); if (s_key2 == NULL) { ERR_print_errors(bio_err); goto end; } s_cert2 = load_cert(s_cert_file2, s_cert_format, "second server certificate file"); if (s_cert2 == NULL) { ERR_print_errors(bio_err); goto end; } } } #if !defined(OPENSSL_NO_NEXTPROTONEG) if (next_proto_neg_in) { next_proto.data = next_protos_parse(&next_proto.len, next_proto_neg_in); if (next_proto.data == NULL) goto end; } #endif alpn_ctx.data = NULL; if (alpn_in) { alpn_ctx.data = next_protos_parse(&alpn_ctx.len, alpn_in); if (alpn_ctx.data == NULL) goto end; } if (crl_file != NULL) { X509_CRL *crl; crl = load_crl(crl_file, crl_format); if (crl == NULL) { BIO_puts(bio_err, "Error loading CRL\n"); ERR_print_errors(bio_err); goto end; } crls = sk_X509_CRL_new_null(); if (crls == NULL || !sk_X509_CRL_push(crls, crl)) { BIO_puts(bio_err, "Error adding CRL\n"); ERR_print_errors(bio_err); X509_CRL_free(crl); goto end; } } if (s_dcert_file != NULL) { if (s_dkey_file == NULL) s_dkey_file = s_dcert_file; s_dkey = load_key(s_dkey_file, s_dkey_format, 0, dpass, engine, "second certificate private key file"); if (s_dkey == NULL) { ERR_print_errors(bio_err); goto end; } s_dcert = load_cert(s_dcert_file, s_dcert_format, "second server certificate file"); if (s_dcert == NULL) { ERR_print_errors(bio_err); goto end; } if (s_dchain_file != NULL) { if (!load_certs(s_dchain_file, &s_dchain, FORMAT_PEM, NULL, "second server certificate chain")) goto end; } } if (bio_s_out == NULL) { if (s_quiet && !s_debug) { bio_s_out = BIO_new(BIO_s_null()); if (s_msg && bio_s_msg == NULL) bio_s_msg = dup_bio_out(FORMAT_TEXT); } else { if (bio_s_out == NULL) bio_s_out = dup_bio_out(FORMAT_TEXT); } } #if !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_EC) if (nocert) #endif { s_cert_file = NULL; s_key_file = NULL; s_dcert_file = NULL; s_dkey_file = NULL; s_cert_file2 = NULL; s_key_file2 = NULL; } ctx = SSL_CTX_new(meth); if (ctx == NULL) { ERR_print_errors(bio_err); goto end; } SSL_CTX_clear_mode(ctx, SSL_MODE_AUTO_RETRY); if (sdebug) ssl_ctx_security_debug(ctx, sdebug); if (!config_ctx(cctx, ssl_args, ctx)) goto end; if (ssl_config) { if (SSL_CTX_config(ctx, ssl_config) == 0) { BIO_printf(bio_err, "Error using configuration \"%s\"\n", ssl_config); ERR_print_errors(bio_err); goto end; } } #ifndef OPENSSL_NO_SCTP if (protocol == IPPROTO_SCTP && sctp_label_bug == 1) SSL_CTX_set_mode(ctx, SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG); #endif if (min_version != 0 && SSL_CTX_set_min_proto_version(ctx, min_version) == 0) goto end; if (max_version != 0 && SSL_CTX_set_max_proto_version(ctx, max_version) == 0) goto end; if (session_id_prefix) { if (strlen(session_id_prefix) >= 32) BIO_printf(bio_err, "warning: id_prefix is too long, only one new session will be possible\n"); if (!SSL_CTX_set_generate_session_id(ctx, generate_session_id)) { BIO_printf(bio_err, "error setting 'id_prefix'\n"); ERR_print_errors(bio_err); goto end; } BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); } SSL_CTX_set_quiet_shutdown(ctx, 1); if (exc != NULL) ssl_ctx_set_excert(ctx, exc); if (state) SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); if (no_cache) SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF); else if (ext_cache) init_session_cache_ctx(ctx); else SSL_CTX_sess_set_cache_size(ctx, 128); if (async) { SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); } if (max_send_fragment > 0 && !SSL_CTX_set_max_send_fragment(ctx, max_send_fragment)) { BIO_printf(bio_err, "%s: Max send fragment size %u is out of permitted range\n", prog, max_send_fragment); goto end; } if (split_send_fragment > 0 && !SSL_CTX_set_split_send_fragment(ctx, split_send_fragment)) { BIO_printf(bio_err, "%s: Split send fragment size %u is out of permitted range\n", prog, split_send_fragment); goto end; } if (max_pipelines > 0 && !SSL_CTX_set_max_pipelines(ctx, max_pipelines)) { BIO_printf(bio_err, "%s: Max pipelines %u is out of permitted range\n", prog, max_pipelines); goto end; } if (read_buf_len > 0) { SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); } #ifndef OPENSSL_NO_SRTP if (srtp_profiles != NULL) { /* Returns 0 on success! */ if (SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles) != 0) { BIO_printf(bio_err, "Error setting SRTP profile\n"); ERR_print_errors(bio_err); goto end; } } #endif if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { ERR_print_errors(bio_err); goto end; } if (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { BIO_printf(bio_err, "Error setting verify params\n"); ERR_print_errors(bio_err); goto end; } ssl_ctx_add_crls(ctx, crls, 0); if (!ssl_load_stores(ctx, vfyCApath, vfyCAfile, chCApath, chCAfile, crls, crl_download)) { BIO_printf(bio_err, "Error loading store locations\n"); ERR_print_errors(bio_err); goto end; } if (s_cert2) { ctx2 = SSL_CTX_new(meth); if (ctx2 == NULL) { ERR_print_errors(bio_err); goto end; } } if (ctx2 != NULL) { BIO_printf(bio_s_out, "Setting secondary ctx parameters\n"); if (sdebug) ssl_ctx_security_debug(ctx2, sdebug); if (session_id_prefix) { if (strlen(session_id_prefix) >= 32) BIO_printf(bio_err, "warning: id_prefix is too long, only one new session will be possible\n"); if (!SSL_CTX_set_generate_session_id(ctx2, generate_session_id)) { BIO_printf(bio_err, "error setting 'id_prefix'\n"); ERR_print_errors(bio_err); goto end; } BIO_printf(bio_err, "id_prefix '%s' set.\n", session_id_prefix); } SSL_CTX_set_quiet_shutdown(ctx2, 1); if (exc != NULL) ssl_ctx_set_excert(ctx2, exc); if (state) SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback); if (no_cache) SSL_CTX_set_session_cache_mode(ctx2, SSL_SESS_CACHE_OFF); else if (ext_cache) init_session_cache_ctx(ctx2); else SSL_CTX_sess_set_cache_size(ctx2, 128); if (async) SSL_CTX_set_mode(ctx2, SSL_MODE_ASYNC); if (!ctx_set_verify_locations(ctx2, CAfile, CApath, noCAfile, noCApath)) { ERR_print_errors(bio_err); goto end; } if (vpmtouched && !SSL_CTX_set1_param(ctx2, vpm)) { BIO_printf(bio_err, "Error setting verify params\n"); ERR_print_errors(bio_err); goto end; } ssl_ctx_add_crls(ctx2, crls, 0); if (!config_ctx(cctx, ssl_args, ctx2)) goto end; } #ifndef OPENSSL_NO_NEXTPROTONEG if (next_proto.data) SSL_CTX_set_next_protos_advertised_cb(ctx, next_proto_cb, &next_proto); #endif if (alpn_ctx.data) SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, &alpn_ctx); #ifndef OPENSSL_NO_DH if (!no_dhe) { DH *dh = NULL; if (dhfile != NULL) dh = load_dh_param(dhfile); else if (s_cert_file != NULL) dh = load_dh_param(s_cert_file); if (dh != NULL) { BIO_printf(bio_s_out, "Setting temp DH parameters\n"); } else { BIO_printf(bio_s_out, "Using default temp DH parameters\n"); } (void)BIO_flush(bio_s_out); if (dh == NULL) { SSL_CTX_set_dh_auto(ctx, 1); } else if (!SSL_CTX_set_tmp_dh(ctx, dh)) { BIO_puts(bio_err, "Error setting temp DH parameters\n"); ERR_print_errors(bio_err); DH_free(dh); goto end; } if (ctx2 != NULL) { if (!dhfile) { DH *dh2 = load_dh_param(s_cert_file2); if (dh2 != NULL) { BIO_printf(bio_s_out, "Setting temp DH parameters\n"); (void)BIO_flush(bio_s_out); DH_free(dh); dh = dh2; } } if (dh == NULL) { SSL_CTX_set_dh_auto(ctx2, 1); } else if (!SSL_CTX_set_tmp_dh(ctx2, dh)) { BIO_puts(bio_err, "Error setting temp DH parameters\n"); ERR_print_errors(bio_err); DH_free(dh); goto end; } } DH_free(dh); } #endif if (!set_cert_key_stuff(ctx, s_cert, s_key, s_chain, build_chain)) goto end; if (s_serverinfo_file != NULL && !SSL_CTX_use_serverinfo_file(ctx, s_serverinfo_file)) { ERR_print_errors(bio_err); goto end; } if (ctx2 != NULL && !set_cert_key_stuff(ctx2, s_cert2, s_key2, NULL, build_chain)) goto end; if (s_dcert != NULL) { if (!set_cert_key_stuff(ctx, s_dcert, s_dkey, s_dchain, build_chain)) goto end; } if (no_resume_ephemeral) { SSL_CTX_set_not_resumable_session_callback(ctx, not_resumable_sess_cb); if (ctx2 != NULL) SSL_CTX_set_not_resumable_session_callback(ctx2, not_resumable_sess_cb); } #ifndef OPENSSL_NO_PSK if (psk_key != NULL) { if (s_debug) BIO_printf(bio_s_out, "PSK key given, setting server callback\n"); SSL_CTX_set_psk_server_callback(ctx, psk_server_cb); } if (!SSL_CTX_use_psk_identity_hint(ctx, psk_identity_hint)) { BIO_printf(bio_err, "error setting PSK identity hint to context\n"); ERR_print_errors(bio_err); goto end; } #endif if (psksessf != NULL) { BIO *stmp = BIO_new_file(psksessf, "r"); if (stmp == NULL) { BIO_printf(bio_err, "Can't open PSK session file %s\n", psksessf); ERR_print_errors(bio_err); goto end; } psksess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); BIO_free(stmp); if (psksess == NULL) { BIO_printf(bio_err, "Can't read PSK session file %s\n", psksessf); ERR_print_errors(bio_err); goto end; } } if (psk_key != NULL || psksess != NULL) SSL_CTX_set_psk_find_session_callback(ctx, psk_find_session_cb); SSL_CTX_set_verify(ctx, s_server_verify, verify_callback); if (!SSL_CTX_set_session_id_context(ctx, (void *)&s_server_session_id_context, sizeof(s_server_session_id_context))) { BIO_printf(bio_err, "error setting session id context\n"); ERR_print_errors(bio_err); goto end; } /* Set DTLS cookie generation and verification callbacks */ SSL_CTX_set_cookie_generate_cb(ctx, generate_cookie_callback); SSL_CTX_set_cookie_verify_cb(ctx, verify_cookie_callback); /* Set TLS1.3 cookie generation and verification callbacks */ SSL_CTX_set_stateless_cookie_generate_cb(ctx, generate_stateless_cookie_callback); SSL_CTX_set_stateless_cookie_verify_cb(ctx, verify_stateless_cookie_callback); if (ctx2 != NULL) { SSL_CTX_set_verify(ctx2, s_server_verify, verify_callback); if (!SSL_CTX_set_session_id_context(ctx2, (void *)&s_server_session_id_context, sizeof(s_server_session_id_context))) { BIO_printf(bio_err, "error setting session id context\n"); ERR_print_errors(bio_err); goto end; } tlsextcbp.biodebug = bio_s_out; SSL_CTX_set_tlsext_servername_callback(ctx2, ssl_servername_cb); SSL_CTX_set_tlsext_servername_arg(ctx2, &tlsextcbp); SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); } #ifndef OPENSSL_NO_SRP if (srp_verifier_file != NULL) { srp_callback_parm.vb = SRP_VBASE_new(srpuserseed); srp_callback_parm.user = NULL; srp_callback_parm.login = NULL; if ((ret = SRP_VBASE_init(srp_callback_parm.vb, srp_verifier_file)) != SRP_NO_ERROR) { BIO_printf(bio_err, "Cannot initialize SRP verifier file \"%s\":ret=%d\n", srp_verifier_file, ret); goto end; } SSL_CTX_set_verify(ctx, SSL_VERIFY_NONE, verify_callback); SSL_CTX_set_srp_cb_arg(ctx, &srp_callback_parm); SSL_CTX_set_srp_username_callback(ctx, ssl_srp_server_param_cb); } else #endif if (CAfile != NULL) { SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(CAfile)); if (ctx2) SSL_CTX_set_client_CA_list(ctx2, SSL_load_client_CA_file(CAfile)); } #ifndef OPENSSL_NO_OCSP if (s_tlsextstatus) { SSL_CTX_set_tlsext_status_cb(ctx, cert_status_cb); SSL_CTX_set_tlsext_status_arg(ctx, &tlscstatp); if (ctx2) { SSL_CTX_set_tlsext_status_cb(ctx2, cert_status_cb); SSL_CTX_set_tlsext_status_arg(ctx2, &tlscstatp); } } #endif if (set_keylog_file(ctx, keylog_file)) goto end; if (max_early_data >= 0) SSL_CTX_set_max_early_data(ctx, max_early_data); if (recv_max_early_data >= 0) SSL_CTX_set_recv_max_early_data(ctx, recv_max_early_data); if (rev) server_cb = rev_body; else if (www) server_cb = www_body; else server_cb = sv_body; #ifdef AF_UNIX if (socket_family == AF_UNIX && unlink_unix_path) unlink(host); #endif do_server(&accept_socket, host, port, socket_family, socket_type, protocol, server_cb, context, naccept, bio_s_out); print_stats(bio_s_out, ctx); ret = 0; end: SSL_CTX_free(ctx); SSL_SESSION_free(psksess); set_keylog_file(NULL, NULL); X509_free(s_cert); sk_X509_CRL_pop_free(crls, X509_CRL_free); X509_free(s_dcert); EVP_PKEY_free(s_key); EVP_PKEY_free(s_dkey); sk_X509_pop_free(s_chain, X509_free); sk_X509_pop_free(s_dchain, X509_free); OPENSSL_free(pass); OPENSSL_free(dpass); OPENSSL_free(host); OPENSSL_free(port); X509_VERIFY_PARAM_free(vpm); free_sessions(); OPENSSL_free(tlscstatp.host); OPENSSL_free(tlscstatp.port); OPENSSL_free(tlscstatp.path); SSL_CTX_free(ctx2); X509_free(s_cert2); EVP_PKEY_free(s_key2); #ifndef OPENSSL_NO_NEXTPROTONEG OPENSSL_free(next_proto.data); #endif OPENSSL_free(alpn_ctx.data); ssl_excert_free(exc); sk_OPENSSL_STRING_free(ssl_args); SSL_CONF_CTX_free(cctx); release_engine(engine); BIO_free(bio_s_out); bio_s_out = NULL; BIO_free(bio_s_msg); bio_s_msg = NULL; #ifdef CHARSET_EBCDIC BIO_meth_free(methods_ebcdic); #endif return ret; } static void print_stats(BIO *bio, SSL_CTX *ssl_ctx) { BIO_printf(bio, "%4ld items in the session cache\n", SSL_CTX_sess_number(ssl_ctx)); BIO_printf(bio, "%4ld client connects (SSL_connect())\n", SSL_CTX_sess_connect(ssl_ctx)); BIO_printf(bio, "%4ld client renegotiates (SSL_connect())\n", SSL_CTX_sess_connect_renegotiate(ssl_ctx)); BIO_printf(bio, "%4ld client connects that finished\n", SSL_CTX_sess_connect_good(ssl_ctx)); BIO_printf(bio, "%4ld server accepts (SSL_accept())\n", SSL_CTX_sess_accept(ssl_ctx)); BIO_printf(bio, "%4ld server renegotiates (SSL_accept())\n", SSL_CTX_sess_accept_renegotiate(ssl_ctx)); BIO_printf(bio, "%4ld server accepts that finished\n", SSL_CTX_sess_accept_good(ssl_ctx)); BIO_printf(bio, "%4ld session cache hits\n", SSL_CTX_sess_hits(ssl_ctx)); BIO_printf(bio, "%4ld session cache misses\n", SSL_CTX_sess_misses(ssl_ctx)); BIO_printf(bio, "%4ld session cache timeouts\n", SSL_CTX_sess_timeouts(ssl_ctx)); BIO_printf(bio, "%4ld callback cache hits\n", SSL_CTX_sess_cb_hits(ssl_ctx)); BIO_printf(bio, "%4ld cache full overflows (%ld allowed)\n", SSL_CTX_sess_cache_full(ssl_ctx), SSL_CTX_sess_get_cache_size(ssl_ctx)); } static long int count_reads_callback(BIO *bio, int cmd, const char *argp, int argi, long int argl, long int ret) { unsigned int *p_counter = (unsigned int *)BIO_get_callback_arg(bio); switch (cmd) { case BIO_CB_READ: /* No break here */ case BIO_CB_GETS: if (p_counter != NULL) ++*p_counter; break; default: break; } if (s_debug) { BIO_set_callback_arg(bio, (char *)bio_s_out); ret = bio_dump_callback(bio, cmd, argp, argi, argl, ret); BIO_set_callback_arg(bio, (char *)p_counter); } return ret; } static int sv_body(int s, int stype, int prot, unsigned char *context) { char *buf = NULL; fd_set readfds; int ret = 1, width; int k, i; unsigned long l; SSL *con = NULL; BIO *sbio; struct timeval timeout; #if !(defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS)) struct timeval *timeoutp; #endif #ifndef OPENSSL_NO_DTLS # ifndef OPENSSL_NO_SCTP int isdtls = (stype == SOCK_DGRAM || prot == IPPROTO_SCTP); # else int isdtls = (stype == SOCK_DGRAM); # endif #endif buf = app_malloc(bufsize, "server buffer"); if (s_nbio) { if (!BIO_socket_nbio(s, 1)) ERR_print_errors(bio_err); else if (!s_quiet) BIO_printf(bio_err, "Turned on non blocking io\n"); } con = SSL_new(ctx); if (con == NULL) { ret = -1; goto err; } if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } if (context != NULL && !SSL_set_session_id_context(con, context, strlen((char *)context))) { BIO_printf(bio_err, "Error setting session id context\n"); ret = -1; goto err; } if (!SSL_clear(con)) { BIO_printf(bio_err, "Error clearing SSL connection\n"); ret = -1; goto err; } #ifndef OPENSSL_NO_DTLS if (isdtls) { # ifndef OPENSSL_NO_SCTP if (prot == IPPROTO_SCTP) sbio = BIO_new_dgram_sctp(s, BIO_NOCLOSE); else # endif sbio = BIO_new_dgram(s, BIO_NOCLOSE); if (enable_timeouts) { timeout.tv_sec = 0; timeout.tv_usec = DGRAM_RCV_TIMEOUT; BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_RECV_TIMEOUT, 0, &timeout); timeout.tv_sec = 0; timeout.tv_usec = DGRAM_SND_TIMEOUT; BIO_ctrl(sbio, BIO_CTRL_DGRAM_SET_SEND_TIMEOUT, 0, &timeout); } if (socket_mtu) { if (socket_mtu < DTLS_get_link_min_mtu(con)) { BIO_printf(bio_err, "MTU too small. Must be at least %ld\n", DTLS_get_link_min_mtu(con)); ret = -1; BIO_free(sbio); goto err; } SSL_set_options(con, SSL_OP_NO_QUERY_MTU); if (!DTLS_set_link_mtu(con, socket_mtu)) { BIO_printf(bio_err, "Failed to set MTU\n"); ret = -1; BIO_free(sbio); goto err; } } else /* want to do MTU discovery */ BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); # ifndef OPENSSL_NO_SCTP if (prot != IPPROTO_SCTP) # endif /* Turn on cookie exchange. Not necessary for SCTP */ SSL_set_options(con, SSL_OP_COOKIE_EXCHANGE); } else #endif sbio = BIO_new_socket(s, BIO_NOCLOSE); if (sbio == NULL) { BIO_printf(bio_err, "Unable to create BIO\n"); ERR_print_errors(bio_err); goto err; } if (s_nbio_test) { BIO *test; test = BIO_new(BIO_f_nbio_test()); sbio = BIO_push(test, sbio); } SSL_set_bio(con, sbio, sbio); SSL_set_accept_state(con); /* SSL_set_fd(con,s); */ BIO_set_callback(SSL_get_rbio(con), count_reads_callback); if (s_msg) { #ifndef OPENSSL_NO_SSL_TRACE if (s_msg == 2) SSL_set_msg_callback(con, SSL_trace); else #endif SSL_set_msg_callback(con, msg_cb); SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); } if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } if (early_data) { int write_header = 1, edret = SSL_READ_EARLY_DATA_ERROR; size_t readbytes; while (edret != SSL_READ_EARLY_DATA_FINISH) { for (;;) { edret = SSL_read_early_data(con, buf, bufsize, &readbytes); if (edret != SSL_READ_EARLY_DATA_ERROR) break; switch (SSL_get_error(con, 0)) { case SSL_ERROR_WANT_WRITE: case SSL_ERROR_WANT_ASYNC: case SSL_ERROR_WANT_READ: /* Just keep trying - busy waiting */ continue; default: BIO_printf(bio_err, "Error reading early data\n"); ERR_print_errors(bio_err); goto err; } } if (readbytes > 0) { if (write_header) { BIO_printf(bio_s_out, "Early data received:\n"); write_header = 0; } raw_write_stdout(buf, (unsigned int)readbytes); (void)BIO_flush(bio_s_out); } } if (write_header) { if (SSL_get_early_data_status(con) == SSL_EARLY_DATA_NOT_SENT) BIO_printf(bio_s_out, "No early data received\n"); else BIO_printf(bio_s_out, "Early data was rejected\n"); } else { BIO_printf(bio_s_out, "\nEnd of early data\n"); } if (SSL_is_init_finished(con)) print_connection_info(con); } if (fileno_stdin() > s) width = fileno_stdin() + 1; else width = s + 1; for (;;) { int read_from_terminal; int read_from_sslcon; read_from_terminal = 0; read_from_sslcon = SSL_has_pending(con) || (async && SSL_waiting_for_async(con)); if (!read_from_sslcon) { FD_ZERO(&readfds); #if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) openssl_fdset(fileno_stdin(), &readfds); #endif openssl_fdset(s, &readfds); /* * Note: under VMS with SOCKETSHR the second parameter is * currently of type (int *) whereas under other systems it is * (void *) if you don't have a cast it will choke the compiler: * if you do have a cast then you can either go for (int *) or * (void *). */ #if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) /* * Under DOS (non-djgpp) and Windows we can't select on stdin: * only on sockets. As a workaround we timeout the select every * second and check for any keypress. In a proper Windows * application we wouldn't do this because it is inefficient. */ timeout.tv_sec = 1; timeout.tv_usec = 0; i = select(width, (void *)&readfds, NULL, NULL, &timeout); if (has_stdin_waiting()) read_from_terminal = 1; if ((i < 0) || (!i && !read_from_terminal)) continue; #else if (SSL_is_dtls(con) && DTLSv1_get_timeout(con, &timeout)) timeoutp = &timeout; else timeoutp = NULL; i = select(width, (void *)&readfds, NULL, NULL, timeoutp); if ((SSL_is_dtls(con)) && DTLSv1_handle_timeout(con) > 0) BIO_printf(bio_err, "TIMEOUT occurred\n"); if (i <= 0) continue; if (FD_ISSET(fileno_stdin(), &readfds)) read_from_terminal = 1; #endif if (FD_ISSET(s, &readfds)) read_from_sslcon = 1; } if (read_from_terminal) { if (s_crlf) { int j, lf_num; i = raw_read_stdin(buf, bufsize / 2); lf_num = 0; /* both loops are skipped when i <= 0 */ for (j = 0; j < i; j++) if (buf[j] == '\n') lf_num++; for (j = i - 1; j >= 0; j--) { buf[j + lf_num] = buf[j]; if (buf[j] == '\n') { lf_num--; i++; buf[j + lf_num] = '\r'; } } assert(lf_num == 0); } else { i = raw_read_stdin(buf, bufsize); } if (!s_quiet && !s_brief) { if ((i <= 0) || (buf[0] == 'Q')) { BIO_printf(bio_s_out, "DONE\n"); (void)BIO_flush(bio_s_out); BIO_closesocket(s); close_accept_socket(); ret = -11; goto err; } if ((i <= 0) || (buf[0] == 'q')) { BIO_printf(bio_s_out, "DONE\n"); (void)BIO_flush(bio_s_out); if (SSL_version(con) != DTLS1_VERSION) BIO_closesocket(s); /* * close_accept_socket(); ret= -11; */ goto err; } #ifndef OPENSSL_NO_HEARTBEATS if ((buf[0] == 'B') && ((buf[1] == '\n') || (buf[1] == '\r'))) { BIO_printf(bio_err, "HEARTBEATING\n"); SSL_heartbeat(con); i = 0; continue; } #endif if ((buf[0] == 'r') && ((buf[1] == '\n') || (buf[1] == '\r'))) { SSL_renegotiate(con); i = SSL_do_handshake(con); printf("SSL_do_handshake -> %d\n", i); i = 0; /* 13; */ continue; } if ((buf[0] == 'R') && ((buf[1] == '\n') || (buf[1] == '\r'))) { SSL_set_verify(con, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); SSL_renegotiate(con); i = SSL_do_handshake(con); printf("SSL_do_handshake -> %d\n", i); i = 0; /* 13; */ continue; } if ((buf[0] == 'K' || buf[0] == 'k') && ((buf[1] == '\n') || (buf[1] == '\r'))) { SSL_key_update(con, buf[0] == 'K' ? SSL_KEY_UPDATE_REQUESTED : SSL_KEY_UPDATE_NOT_REQUESTED); i = SSL_do_handshake(con); printf("SSL_do_handshake -> %d\n", i); i = 0; continue; } if (buf[0] == 'c' && ((buf[1] == '\n') || (buf[1] == '\r'))) { SSL_set_verify(con, SSL_VERIFY_PEER, NULL); i = SSL_verify_client_post_handshake(con); if (i == 0) { printf("Failed to initiate request\n"); ERR_print_errors(bio_err); } else { i = SSL_do_handshake(con); printf("SSL_do_handshake -> %d\n", i); i = 0; } continue; } if (buf[0] == 'P') { static const char *str = "Lets print some clear text\n"; BIO_write(SSL_get_wbio(con), str, strlen(str)); } if (buf[0] == 'S') { print_stats(bio_s_out, SSL_get_SSL_CTX(con)); } } #ifdef CHARSET_EBCDIC ebcdic2ascii(buf, buf, i); #endif l = k = 0; for (;;) { /* should do a select for the write */ #ifdef RENEG static count = 0; if (++count == 100) { count = 0; SSL_renegotiate(con); } #endif k = SSL_write(con, &(buf[l]), (unsigned int)i); #ifndef OPENSSL_NO_SRP while (SSL_get_error(con, k) == SSL_ERROR_WANT_X509_LOOKUP) { BIO_printf(bio_s_out, "LOOKUP renego during write\n"); SRP_user_pwd_free(srp_callback_parm.user); srp_callback_parm.user = SRP_VBASE_get1_by_user(srp_callback_parm.vb, srp_callback_parm.login); if (srp_callback_parm.user) BIO_printf(bio_s_out, "LOOKUP done %s\n", srp_callback_parm.user->info); else BIO_printf(bio_s_out, "LOOKUP not successful\n"); k = SSL_write(con, &(buf[l]), (unsigned int)i); } #endif switch (SSL_get_error(con, k)) { case SSL_ERROR_NONE: break; case SSL_ERROR_WANT_ASYNC: BIO_printf(bio_s_out, "Write BLOCK (Async)\n"); (void)BIO_flush(bio_s_out); wait_for_async(con); break; case SSL_ERROR_WANT_WRITE: case SSL_ERROR_WANT_READ: case SSL_ERROR_WANT_X509_LOOKUP: BIO_printf(bio_s_out, "Write BLOCK\n"); (void)BIO_flush(bio_s_out); break; case SSL_ERROR_WANT_ASYNC_JOB: /* * This shouldn't ever happen in s_server. Treat as an error */ case SSL_ERROR_SYSCALL: case SSL_ERROR_SSL: BIO_printf(bio_s_out, "ERROR\n"); (void)BIO_flush(bio_s_out); ERR_print_errors(bio_err); ret = 1; goto err; /* break; */ case SSL_ERROR_ZERO_RETURN: BIO_printf(bio_s_out, "DONE\n"); (void)BIO_flush(bio_s_out); ret = 1; goto err; } if (k > 0) { l += k; i -= k; } if (i <= 0) break; } } if (read_from_sslcon) { /* * init_ssl_connection handles all async events itself so if we're * waiting for async then we shouldn't go back into * init_ssl_connection */ if ((!async || !SSL_waiting_for_async(con)) && !SSL_is_init_finished(con)) { /* * Count number of reads during init_ssl_connection. * It helps us to distinguish configuration errors from errors * caused by a client. */ unsigned int read_counter = 0; BIO_set_callback_arg(SSL_get_rbio(con), (char *)&read_counter); i = init_ssl_connection(con); BIO_set_callback_arg(SSL_get_rbio(con), NULL); /* * If initialization fails without reads, then * there was a fatal error in configuration. */ if (i <= 0 && read_counter == 0) { ret = -1; goto err; } if (i < 0) { ret = 0; goto err; } else if (i == 0) { ret = 1; goto err; } } else { again: i = SSL_read(con, (char *)buf, bufsize); #ifndef OPENSSL_NO_SRP while (SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { BIO_printf(bio_s_out, "LOOKUP renego during read\n"); SRP_user_pwd_free(srp_callback_parm.user); srp_callback_parm.user = SRP_VBASE_get1_by_user(srp_callback_parm.vb, srp_callback_parm.login); if (srp_callback_parm.user) BIO_printf(bio_s_out, "LOOKUP done %s\n", srp_callback_parm.user->info); else BIO_printf(bio_s_out, "LOOKUP not successful\n"); i = SSL_read(con, (char *)buf, bufsize); } #endif switch (SSL_get_error(con, i)) { case SSL_ERROR_NONE: #ifdef CHARSET_EBCDIC ascii2ebcdic(buf, buf, i); #endif raw_write_stdout(buf, (unsigned int)i); (void)BIO_flush(bio_s_out); if (SSL_has_pending(con)) goto again; break; case SSL_ERROR_WANT_ASYNC: BIO_printf(bio_s_out, "Read BLOCK (Async)\n"); (void)BIO_flush(bio_s_out); wait_for_async(con); break; case SSL_ERROR_WANT_WRITE: case SSL_ERROR_WANT_READ: BIO_printf(bio_s_out, "Read BLOCK\n"); (void)BIO_flush(bio_s_out); break; case SSL_ERROR_WANT_ASYNC_JOB: /* * This shouldn't ever happen in s_server. Treat as an error */ case SSL_ERROR_SYSCALL: case SSL_ERROR_SSL: BIO_printf(bio_s_out, "ERROR\n"); (void)BIO_flush(bio_s_out); ERR_print_errors(bio_err); ret = 1; goto err; case SSL_ERROR_ZERO_RETURN: BIO_printf(bio_s_out, "DONE\n"); (void)BIO_flush(bio_s_out); ret = 1; goto err; } } } } err: if (con != NULL) { BIO_printf(bio_s_out, "shutting down SSL\n"); SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); SSL_free(con); } BIO_printf(bio_s_out, "CONNECTION CLOSED\n"); OPENSSL_clear_free(buf, bufsize); return ret; } static void close_accept_socket(void) { BIO_printf(bio_err, "shutdown accept socket\n"); if (accept_socket >= 0) { BIO_closesocket(accept_socket); } } static int is_retryable(SSL *con, int i) { int err = SSL_get_error(con, i); /* If it's not a fatal error, it must be retryable */ return (err != SSL_ERROR_SSL) && (err != SSL_ERROR_SYSCALL) && (err != SSL_ERROR_ZERO_RETURN); } static int init_ssl_connection(SSL *con) { int i; long verify_err; int retry = 0; if (dtlslisten || stateless) { BIO_ADDR *client = NULL; if (dtlslisten) { if ((client = BIO_ADDR_new()) == NULL) { BIO_printf(bio_err, "ERROR - memory\n"); return 0; } i = DTLSv1_listen(con, client); } else { i = SSL_stateless(con); } if (i > 0) { BIO *wbio; int fd = -1; if (dtlslisten) { wbio = SSL_get_wbio(con); if (wbio) { BIO_get_fd(wbio, &fd); } if (!wbio || BIO_connect(fd, client, 0) == 0) { BIO_printf(bio_err, "ERROR - unable to connect\n"); BIO_ADDR_free(client); return 0; } (void)BIO_ctrl_set_connected(wbio, client); BIO_ADDR_free(client); dtlslisten = 0; } else { stateless = 0; } i = SSL_accept(con); } else { BIO_ADDR_free(client); } } else { do { i = SSL_accept(con); if (i <= 0) retry = is_retryable(con, i); #ifdef CERT_CB_TEST_RETRY { while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP && SSL_get_state(con) == TLS_ST_SR_CLNT_HELLO) { BIO_printf(bio_err, "LOOKUP from certificate callback during accept\n"); i = SSL_accept(con); if (i <= 0) retry = is_retryable(con, i); } } #endif #ifndef OPENSSL_NO_SRP while (i <= 0 && SSL_get_error(con, i) == SSL_ERROR_WANT_X509_LOOKUP) { BIO_printf(bio_s_out, "LOOKUP during accept %s\n", srp_callback_parm.login); SRP_user_pwd_free(srp_callback_parm.user); srp_callback_parm.user = SRP_VBASE_get1_by_user(srp_callback_parm.vb, srp_callback_parm.login); if (srp_callback_parm.user) BIO_printf(bio_s_out, "LOOKUP done %s\n", srp_callback_parm.user->info); else BIO_printf(bio_s_out, "LOOKUP not successful\n"); i = SSL_accept(con); if (i <= 0) retry = is_retryable(con, i); } #endif } while (i < 0 && SSL_waiting_for_async(con)); } if (i <= 0) { if (((dtlslisten || stateless) && i == 0) || (!dtlslisten && !stateless && retry)) { BIO_printf(bio_s_out, "DELAY\n"); return 1; } BIO_printf(bio_err, "ERROR\n"); verify_err = SSL_get_verify_result(con); if (verify_err != X509_V_OK) { BIO_printf(bio_err, "verify error:%s\n", X509_verify_cert_error_string(verify_err)); } /* Always print any error messages */ ERR_print_errors(bio_err); return 0; } print_connection_info(con); return 1; } static void print_connection_info(SSL *con) { const char *str; X509 *peer; char buf[BUFSIZ]; #if !defined(OPENSSL_NO_NEXTPROTONEG) const unsigned char *next_proto_neg; unsigned next_proto_neg_len; #endif unsigned char *exportedkeymat; int i; if (s_brief) print_ssl_summary(con); PEM_write_bio_SSL_SESSION(bio_s_out, SSL_get_session(con)); peer = SSL_get_peer_certificate(con); if (peer != NULL) { BIO_printf(bio_s_out, "Client certificate\n"); PEM_write_bio_X509(bio_s_out, peer); dump_cert_text(bio_s_out, peer); X509_free(peer); peer = NULL; } if (SSL_get_shared_ciphers(con, buf, sizeof(buf)) != NULL) BIO_printf(bio_s_out, "Shared ciphers:%s\n", buf); str = SSL_CIPHER_get_name(SSL_get_current_cipher(con)); ssl_print_sigalgs(bio_s_out, con); #ifndef OPENSSL_NO_EC ssl_print_point_formats(bio_s_out, con); ssl_print_groups(bio_s_out, con, 0); #endif print_ca_names(bio_s_out, con); BIO_printf(bio_s_out, "CIPHER is %s\n", (str != NULL) ? str : "(NONE)"); #if !defined(OPENSSL_NO_NEXTPROTONEG) SSL_get0_next_proto_negotiated(con, &next_proto_neg, &next_proto_neg_len); if (next_proto_neg) { BIO_printf(bio_s_out, "NEXTPROTO is "); BIO_write(bio_s_out, next_proto_neg, next_proto_neg_len); BIO_printf(bio_s_out, "\n"); } #endif #ifndef OPENSSL_NO_SRTP { SRTP_PROTECTION_PROFILE *srtp_profile = SSL_get_selected_srtp_profile(con); if (srtp_profile) BIO_printf(bio_s_out, "SRTP Extension negotiated, profile=%s\n", srtp_profile->name); } #endif if (SSL_session_reused(con)) BIO_printf(bio_s_out, "Reused session-id\n"); BIO_printf(bio_s_out, "Secure Renegotiation IS%s supported\n", SSL_get_secure_renegotiation_support(con) ? "" : " NOT"); if ((SSL_get_options(con) & SSL_OP_NO_RENEGOTIATION)) BIO_printf(bio_s_out, "Renegotiation is DISABLED\n"); if (keymatexportlabel != NULL) { BIO_printf(bio_s_out, "Keying material exporter:\n"); BIO_printf(bio_s_out, " Label: '%s'\n", keymatexportlabel); BIO_printf(bio_s_out, " Length: %i bytes\n", keymatexportlen); exportedkeymat = app_malloc(keymatexportlen, "export key"); if (!SSL_export_keying_material(con, exportedkeymat, keymatexportlen, keymatexportlabel, strlen(keymatexportlabel), NULL, 0, 0)) { BIO_printf(bio_s_out, " Error\n"); } else { BIO_printf(bio_s_out, " Keying material: "); for (i = 0; i < keymatexportlen; i++) BIO_printf(bio_s_out, "%02X", exportedkeymat[i]); BIO_printf(bio_s_out, "\n"); } OPENSSL_free(exportedkeymat); } #ifndef OPENSSL_NO_KTLS if (BIO_get_ktls_send(SSL_get_wbio(con))) BIO_printf(bio_err, "Using Kernel TLS for sending\n"); if (BIO_get_ktls_recv(SSL_get_rbio(con))) BIO_printf(bio_err, "Using Kernel TLS for receiving\n"); #endif (void)BIO_flush(bio_s_out); } #ifndef OPENSSL_NO_DH static DH *load_dh_param(const char *dhfile) { DH *ret = NULL; BIO *bio; if ((bio = BIO_new_file(dhfile, "r")) == NULL) goto err; ret = PEM_read_bio_DHparams(bio, NULL, NULL, NULL); err: BIO_free(bio); return ret; } #endif static int www_body(int s, int stype, int prot, unsigned char *context) { char *buf = NULL; int ret = 1; int i, j, k, dot; SSL *con; const SSL_CIPHER *c; BIO *io, *ssl_bio, *sbio; #ifdef RENEG int total_bytes = 0; #endif int width; fd_set readfds; /* Set width for a select call if needed */ width = s + 1; buf = app_malloc(bufsize, "server www buffer"); io = BIO_new(BIO_f_buffer()); ssl_bio = BIO_new(BIO_f_ssl()); if ((io == NULL) || (ssl_bio == NULL)) goto err; if (s_nbio) { if (!BIO_socket_nbio(s, 1)) ERR_print_errors(bio_err); else if (!s_quiet) BIO_printf(bio_err, "Turned on non blocking io\n"); } /* lets make the output buffer a reasonable size */ if (!BIO_set_write_buffer_size(io, bufsize)) goto err; if ((con = SSL_new(ctx)) == NULL) goto err; if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } if (context != NULL && !SSL_set_session_id_context(con, context, strlen((char *)context))) { SSL_free(con); goto err; } sbio = BIO_new_socket(s, BIO_NOCLOSE); if (s_nbio_test) { BIO *test; test = BIO_new(BIO_f_nbio_test()); sbio = BIO_push(test, sbio); } SSL_set_bio(con, sbio, sbio); SSL_set_accept_state(con); /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ BIO_set_ssl(ssl_bio, con, BIO_CLOSE); BIO_push(io, ssl_bio); #ifdef CHARSET_EBCDIC io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io); #endif if (s_debug) { BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); } if (s_msg) { #ifndef OPENSSL_NO_SSL_TRACE if (s_msg == 2) SSL_set_msg_callback(con, SSL_trace); else #endif SSL_set_msg_callback(con, msg_cb); SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); } for (;;) { i = BIO_gets(io, buf, bufsize - 1); if (i < 0) { /* error */ if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) { if (!s_quiet) ERR_print_errors(bio_err); goto err; } else { BIO_printf(bio_s_out, "read R BLOCK\n"); #ifndef OPENSSL_NO_SRP if (BIO_should_io_special(io) && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { BIO_printf(bio_s_out, "LOOKUP renego during read\n"); SRP_user_pwd_free(srp_callback_parm.user); srp_callback_parm.user = SRP_VBASE_get1_by_user(srp_callback_parm.vb, srp_callback_parm.login); if (srp_callback_parm.user) BIO_printf(bio_s_out, "LOOKUP done %s\n", srp_callback_parm.user->info); else BIO_printf(bio_s_out, "LOOKUP not successful\n"); continue; } #endif #if !defined(OPENSSL_SYS_MSDOS) sleep(1); #endif continue; } } else if (i == 0) { /* end of input */ ret = 1; goto end; } /* else we have data */ if (((www == 1) && (strncmp("GET ", buf, 4) == 0)) || ((www == 2) && (strncmp("GET /stats ", buf, 11) == 0))) { char *p; X509 *peer = NULL; STACK_OF(SSL_CIPHER) *sk; static const char *space = " "; if (www == 1 && strncmp("GET /reneg", buf, 10) == 0) { if (strncmp("GET /renegcert", buf, 14) == 0) SSL_set_verify(con, SSL_VERIFY_PEER | SSL_VERIFY_CLIENT_ONCE, NULL); i = SSL_renegotiate(con); BIO_printf(bio_s_out, "SSL_renegotiate -> %d\n", i); /* Send the HelloRequest */ i = SSL_do_handshake(con); if (i <= 0) { BIO_printf(bio_s_out, "SSL_do_handshake() Retval %d\n", SSL_get_error(con, i)); ERR_print_errors(bio_err); goto err; } /* Wait for a ClientHello to come back */ FD_ZERO(&readfds); openssl_fdset(s, &readfds); i = select(width, (void *)&readfds, NULL, NULL, NULL); if (i <= 0 || !FD_ISSET(s, &readfds)) { BIO_printf(bio_s_out, "Error waiting for client response\n"); ERR_print_errors(bio_err); goto err; } /* * We're not actually expecting any data here and we ignore * any that is sent. This is just to force the handshake that * we're expecting to come from the client. If they haven't * sent one there's not much we can do. */ BIO_gets(io, buf, bufsize - 1); } BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); BIO_puts(io, "\n"); BIO_puts(io, "
\n");
            /* BIO_puts(io, OpenSSL_version(OPENSSL_VERSION)); */
            BIO_puts(io, "\n");
            for (i = 0; i < local_argc; i++) {
                const char *myp;
                for (myp = local_argv[i]; *myp; myp++)
                    switch (*myp) {
                    case '<':
                        BIO_puts(io, "<");
                        break;
                    case '>':
                        BIO_puts(io, ">");
                        break;
                    case '&':
                        BIO_puts(io, "&");
                        break;
                    default:
                        BIO_write(io, myp, 1);
                        break;
                    }
                BIO_write(io, " ", 1);
            }
            BIO_puts(io, "\n");

            BIO_printf(io,
                       "Secure Renegotiation IS%s supported\n",
                       SSL_get_secure_renegotiation_support(con) ?
                       "" : " NOT");

            /*
             * The following is evil and should not really be done
             */
            BIO_printf(io, "Ciphers supported in s_server binary\n");
            sk = SSL_get_ciphers(con);
            j = sk_SSL_CIPHER_num(sk);
            for (i = 0; i < j; i++) {
                c = sk_SSL_CIPHER_value(sk, i);
                BIO_printf(io, "%-11s:%-25s ",
                           SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
                if ((((i + 1) % 2) == 0) && (i + 1 != j))
                    BIO_puts(io, "\n");
            }
            BIO_puts(io, "\n");
            p = SSL_get_shared_ciphers(con, buf, bufsize);
            if (p != NULL) {
                BIO_printf(io,
                           "---\nCiphers common between both SSL end points:\n");
                j = i = 0;
                while (*p) {
                    if (*p == ':') {
                        BIO_write(io, space, 26 - j);
                        i++;
                        j = 0;
                        BIO_write(io, ((i % 3) ? " " : "\n"), 1);
                    } else {
                        BIO_write(io, p, 1);
                        j++;
                    }
                    p++;
                }
                BIO_puts(io, "\n");
            }
            ssl_print_sigalgs(io, con);
#ifndef OPENSSL_NO_EC
            ssl_print_groups(io, con, 0);
#endif
            print_ca_names(io, con);
            BIO_printf(io, (SSL_session_reused(con)
                            ? "---\nReused, " : "---\nNew, "));
            c = SSL_get_current_cipher(con);
            BIO_printf(io, "%s, Cipher is %s\n",
                       SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c));
            SSL_SESSION_print(io, SSL_get_session(con));
            BIO_printf(io, "---\n");
            print_stats(io, SSL_get_SSL_CTX(con));
            BIO_printf(io, "---\n");
            peer = SSL_get_peer_certificate(con);
            if (peer != NULL) {
                BIO_printf(io, "Client certificate\n");
                X509_print(io, peer);
                PEM_write_bio_X509(io, peer);
                X509_free(peer);
                peer = NULL;
            } else {
                BIO_puts(io, "no client certificate available\n");
            }
            BIO_puts(io, "
\r\n\r\n"); break; } else if ((www == 2 || www == 3) && (strncmp("GET /", buf, 5) == 0)) { BIO *file; char *p, *e; static const char *text = "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"; /* skip the '/' */ p = &(buf[5]); dot = 1; for (e = p; *e != '\0'; e++) { if (e[0] == ' ') break; if (e[0] == ':') { /* Windows drive. We treat this the same way as ".." */ dot = -1; break; } switch (dot) { case 1: dot = (e[0] == '.') ? 2 : 0; break; case 2: dot = (e[0] == '.') ? 3 : 0; break; case 3: dot = (e[0] == '/' || e[0] == '\\') ? -1 : 0; break; } if (dot == 0) dot = (e[0] == '/' || e[0] == '\\') ? 1 : 0; } dot = (dot == 3) || (dot == -1); /* filename contains ".." * component */ if (*e == '\0') { BIO_puts(io, text); BIO_printf(io, "'%s' is an invalid file name\r\n", p); break; } *e = '\0'; if (dot) { BIO_puts(io, text); BIO_printf(io, "'%s' contains '..' or ':'\r\n", p); break; } if (*p == '/' || *p == '\\') { BIO_puts(io, text); BIO_printf(io, "'%s' is an invalid path\r\n", p); break; } /* if a directory, do the index thang */ if (app_isdir(p) > 0) { BIO_puts(io, text); BIO_printf(io, "'%s' is a directory\r\n", p); break; } if ((file = BIO_new_file(p, "r")) == NULL) { BIO_puts(io, text); BIO_printf(io, "Error opening '%s'\r\n", p); ERR_print_errors(io); break; } if (!s_quiet) BIO_printf(bio_err, "FILE:%s\n", p); if (www == 2) { i = strlen(p); if (((i > 5) && (strcmp(&(p[i - 5]), ".html") == 0)) || ((i > 4) && (strcmp(&(p[i - 4]), ".php") == 0)) || ((i > 4) && (strcmp(&(p[i - 4]), ".htm") == 0))) BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/html\r\n\r\n"); else BIO_puts(io, "HTTP/1.0 200 ok\r\nContent-type: text/plain\r\n\r\n"); } /* send the file */ for (;;) { i = BIO_read(file, buf, bufsize); if (i <= 0) break; #ifdef RENEG total_bytes += i; BIO_printf(bio_err, "%d\n", i); if (total_bytes > 3 * 1024) { total_bytes = 0; BIO_printf(bio_err, "RENEGOTIATE\n"); SSL_renegotiate(con); } #endif for (j = 0; j < i;) { #ifdef RENEG static count = 0; if (++count == 13) { SSL_renegotiate(con); } #endif k = BIO_write(io, &(buf[j]), i - j); if (k <= 0) { if (!BIO_should_retry(io) && !SSL_waiting_for_async(con)) goto write_error; else { BIO_printf(bio_s_out, "rwrite W BLOCK\n"); } } else { j += k; } } } write_error: BIO_free(file); break; } } for (;;) { i = (int)BIO_flush(io); if (i <= 0) { if (!BIO_should_retry(io)) break; } else break; } end: /* make sure we re-use sessions */ SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); err: OPENSSL_free(buf); BIO_free_all(io); return ret; } static int rev_body(int s, int stype, int prot, unsigned char *context) { char *buf = NULL; int i; int ret = 1; SSL *con; BIO *io, *ssl_bio, *sbio; buf = app_malloc(bufsize, "server rev buffer"); io = BIO_new(BIO_f_buffer()); ssl_bio = BIO_new(BIO_f_ssl()); if ((io == NULL) || (ssl_bio == NULL)) goto err; /* lets make the output buffer a reasonable size */ if (!BIO_set_write_buffer_size(io, bufsize)) goto err; if ((con = SSL_new(ctx)) == NULL) goto err; if (s_tlsextdebug) { SSL_set_tlsext_debug_callback(con, tlsext_cb); SSL_set_tlsext_debug_arg(con, bio_s_out); } if (context != NULL && !SSL_set_session_id_context(con, context, strlen((char *)context))) { SSL_free(con); ERR_print_errors(bio_err); goto err; } sbio = BIO_new_socket(s, BIO_NOCLOSE); SSL_set_bio(con, sbio, sbio); SSL_set_accept_state(con); /* No need to free |con| after this. Done by BIO_free(ssl_bio) */ BIO_set_ssl(ssl_bio, con, BIO_CLOSE); BIO_push(io, ssl_bio); #ifdef CHARSET_EBCDIC io = BIO_push(BIO_new(BIO_f_ebcdic_filter()), io); #endif if (s_debug) { BIO_set_callback(SSL_get_rbio(con), bio_dump_callback); BIO_set_callback_arg(SSL_get_rbio(con), (char *)bio_s_out); } if (s_msg) { #ifndef OPENSSL_NO_SSL_TRACE if (s_msg == 2) SSL_set_msg_callback(con, SSL_trace); else #endif SSL_set_msg_callback(con, msg_cb); SSL_set_msg_callback_arg(con, bio_s_msg ? bio_s_msg : bio_s_out); } for (;;) { i = BIO_do_handshake(io); if (i > 0) break; if (!BIO_should_retry(io)) { BIO_puts(bio_err, "CONNECTION FAILURE\n"); ERR_print_errors(bio_err); goto end; } #ifndef OPENSSL_NO_SRP if (BIO_should_io_special(io) && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { BIO_printf(bio_s_out, "LOOKUP renego during accept\n"); SRP_user_pwd_free(srp_callback_parm.user); srp_callback_parm.user = SRP_VBASE_get1_by_user(srp_callback_parm.vb, srp_callback_parm.login); if (srp_callback_parm.user) BIO_printf(bio_s_out, "LOOKUP done %s\n", srp_callback_parm.user->info); else BIO_printf(bio_s_out, "LOOKUP not successful\n"); continue; } #endif } BIO_printf(bio_err, "CONNECTION ESTABLISHED\n"); print_ssl_summary(con); for (;;) { i = BIO_gets(io, buf, bufsize - 1); if (i < 0) { /* error */ if (!BIO_should_retry(io)) { if (!s_quiet) ERR_print_errors(bio_err); goto err; } else { BIO_printf(bio_s_out, "read R BLOCK\n"); #ifndef OPENSSL_NO_SRP if (BIO_should_io_special(io) && BIO_get_retry_reason(io) == BIO_RR_SSL_X509_LOOKUP) { BIO_printf(bio_s_out, "LOOKUP renego during read\n"); SRP_user_pwd_free(srp_callback_parm.user); srp_callback_parm.user = SRP_VBASE_get1_by_user(srp_callback_parm.vb, srp_callback_parm.login); if (srp_callback_parm.user) BIO_printf(bio_s_out, "LOOKUP done %s\n", srp_callback_parm.user->info); else BIO_printf(bio_s_out, "LOOKUP not successful\n"); continue; } #endif #if !defined(OPENSSL_SYS_MSDOS) sleep(1); #endif continue; } } else if (i == 0) { /* end of input */ ret = 1; BIO_printf(bio_err, "CONNECTION CLOSED\n"); goto end; } else { char *p = buf + i - 1; while (i && (*p == '\n' || *p == '\r')) { p--; i--; } if (!s_ign_eof && (i == 5) && (strncmp(buf, "CLOSE", 5) == 0)) { ret = 1; BIO_printf(bio_err, "CONNECTION CLOSED\n"); goto end; } BUF_reverse((unsigned char *)buf, NULL, i); buf[i] = '\n'; BIO_write(io, buf, i + 1); for (;;) { i = BIO_flush(io); if (i > 0) break; if (!BIO_should_retry(io)) goto end; } } } end: /* make sure we re-use sessions */ SSL_set_shutdown(con, SSL_SENT_SHUTDOWN | SSL_RECEIVED_SHUTDOWN); err: OPENSSL_free(buf); BIO_free_all(io); return ret; } #define MAX_SESSION_ID_ATTEMPTS 10 static int generate_session_id(SSL *ssl, unsigned char *id, unsigned int *id_len) { unsigned int count = 0; do { if (RAND_bytes(id, *id_len) <= 0) return 0; /* * Prefix the session_id with the required prefix. NB: If our prefix * is too long, clip it - but there will be worse effects anyway, eg. * the server could only possibly create 1 session ID (ie. the * prefix!) so all future session negotiations will fail due to * conflicts. */ memcpy(id, session_id_prefix, (strlen(session_id_prefix) < *id_len) ? strlen(session_id_prefix) : *id_len); } while (SSL_has_matching_session_id(ssl, id, *id_len) && (++count < MAX_SESSION_ID_ATTEMPTS)); if (count >= MAX_SESSION_ID_ATTEMPTS) return 0; return 1; } /* * By default s_server uses an in-memory cache which caches SSL_SESSION * structures without any serialisation. This hides some bugs which only * become apparent in deployed servers. By implementing a basic external * session cache some issues can be debugged using s_server. */ typedef struct simple_ssl_session_st { unsigned char *id; unsigned int idlen; unsigned char *der; int derlen; struct simple_ssl_session_st *next; } simple_ssl_session; static simple_ssl_session *first = NULL; static int add_session(SSL *ssl, SSL_SESSION *session) { simple_ssl_session *sess = app_malloc(sizeof(*sess), "get session"); unsigned char *p; SSL_SESSION_get_id(session, &sess->idlen); sess->derlen = i2d_SSL_SESSION(session, NULL); if (sess->derlen < 0) { BIO_printf(bio_err, "Error encoding session\n"); OPENSSL_free(sess); return 0; } sess->id = OPENSSL_memdup(SSL_SESSION_get_id(session, NULL), sess->idlen); sess->der = app_malloc(sess->derlen, "get session buffer"); if (!sess->id) { BIO_printf(bio_err, "Out of memory adding to external cache\n"); OPENSSL_free(sess->id); OPENSSL_free(sess->der); OPENSSL_free(sess); return 0; } p = sess->der; /* Assume it still works. */ if (i2d_SSL_SESSION(session, &p) != sess->derlen) { BIO_printf(bio_err, "Unexpected session encoding length\n"); OPENSSL_free(sess->id); OPENSSL_free(sess->der); OPENSSL_free(sess); return 0; } sess->next = first; first = sess; BIO_printf(bio_err, "New session added to external cache\n"); return 0; } static SSL_SESSION *get_session(SSL *ssl, const unsigned char *id, int idlen, int *do_copy) { simple_ssl_session *sess; *do_copy = 0; for (sess = first; sess; sess = sess->next) { if (idlen == (int)sess->idlen && !memcmp(sess->id, id, idlen)) { const unsigned char *p = sess->der; BIO_printf(bio_err, "Lookup session: cache hit\n"); return d2i_SSL_SESSION(NULL, &p, sess->derlen); } } BIO_printf(bio_err, "Lookup session: cache miss\n"); return NULL; } static void del_session(SSL_CTX *sctx, SSL_SESSION *session) { simple_ssl_session *sess, *prev = NULL; const unsigned char *id; unsigned int idlen; id = SSL_SESSION_get_id(session, &idlen); for (sess = first; sess; sess = sess->next) { if (idlen == sess->idlen && !memcmp(sess->id, id, idlen)) { if (prev) prev->next = sess->next; else first = sess->next; OPENSSL_free(sess->id); OPENSSL_free(sess->der); OPENSSL_free(sess); return; } prev = sess; } } static void init_session_cache_ctx(SSL_CTX *sctx) { SSL_CTX_set_session_cache_mode(sctx, SSL_SESS_CACHE_NO_INTERNAL | SSL_SESS_CACHE_SERVER); SSL_CTX_sess_set_new_cb(sctx, add_session); SSL_CTX_sess_set_get_cb(sctx, get_session); SSL_CTX_sess_set_remove_cb(sctx, del_session); } static void free_sessions(void) { simple_ssl_session *sess, *tsess; for (sess = first; sess;) { OPENSSL_free(sess->id); OPENSSL_free(sess->der); tsess = sess; sess = sess->next; OPENSSL_free(tsess); } first = NULL; } #endif /* OPENSSL_NO_SOCK */