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| author | Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org> | 2021-04-30 00:33:56 +0200 |
|---|---|---|
| committer | Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org> | 2021-04-30 00:33:56 +0200 |
| commit | aa4d426b4d3527d7e166df1a05058c9a4a0f6683 (patch) | |
| tree | 4ff17ce8b89a2321b9d0ed4bcfc37c447bcb6820 /openssl-1.1.0h/apps/s_client.c | |
| download | smtps-and-pop3s-console-program-master.tar.gz smtps-and-pop3s-console-program-master.zip | |
Diffstat (limited to 'openssl-1.1.0h/apps/s_client.c')
| -rw-r--r-- | openssl-1.1.0h/apps/s_client.c | 2760 |
1 files changed, 2760 insertions, 0 deletions
diff --git a/openssl-1.1.0h/apps/s_client.c b/openssl-1.1.0h/apps/s_client.c new file mode 100644 index 0000000..fb89f0c --- /dev/null +++ b/openssl-1.1.0h/apps/s_client.c @@ -0,0 +1,2760 @@ +/* + * Copyright 1995-2018 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 + */ + +/* ==================================================================== + * Copyright 2005 Nokia. All rights reserved. + * + * The portions of the attached software ("Contribution") is developed by + * Nokia Corporation and is licensed pursuant to the OpenSSL open source + * license. + * + * The Contribution, originally written by Mika Kousa and Pasi Eronen of + * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites + * support (see RFC 4279) to OpenSSL. + * + * No patent licenses or other rights except those expressly stated in + * the OpenSSL open source license shall be deemed granted or received + * expressly, by implication, estoppel, or otherwise. + * + * No assurances are provided by Nokia that the Contribution does not + * infringe the patent or other intellectual property rights of any third + * party or that the license provides you with all the necessary rights + * to make use of the Contribution. + * + * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN + * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA + * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY + * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR + * OTHERWISE. + */ + +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <openssl/e_os2.h> + +#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 + +#define USE_SOCKETS +#include "apps.h" +#include <openssl/x509.h> +#include <openssl/ssl.h> +#include <openssl/err.h> +#include <openssl/pem.h> +#include <openssl/rand.h> +#include <openssl/ocsp.h> +#include <openssl/bn.h> +#include <openssl/async.h> +#ifndef OPENSSL_NO_SRP +# include <openssl/srp.h> +#endif +#ifndef OPENSSL_NO_CT +# include <openssl/ct.h> +#endif +#include "s_apps.h" +#include "timeouts.h" + +#if defined(__has_feature) +# if __has_feature(memory_sanitizer) +# include <sanitizer/msan_interface.h> +# endif +#endif + +#undef BUFSIZZ +#define BUFSIZZ 1024*8 +#define S_CLIENT_IRC_READ_TIMEOUT 8 + +static char *prog; +static int c_debug = 0; +static int c_showcerts = 0; +static char *keymatexportlabel = NULL; +static int keymatexportlen = 20; +static BIO *bio_c_out = NULL; +static int c_quiet = 0; + +static void print_stuff(BIO *berr, SSL *con, int full); +#ifndef OPENSSL_NO_OCSP +static int ocsp_resp_cb(SSL *s, void *arg); +#endif + +static int saved_errno; + +static void save_errno(void) +{ + saved_errno = errno; + errno = 0; +} + +static int restore_errno(void) +{ + int ret = errno; + errno = saved_errno; + return ret; +} + +static void do_ssl_shutdown(SSL *ssl) +{ + int ret; + + do { + /* We only do unidirectional shutdown */ + ret = SSL_shutdown(ssl); + if (ret < 0) { + switch (SSL_get_error(ssl, ret)) { + case SSL_ERROR_WANT_READ: + case SSL_ERROR_WANT_WRITE: + case SSL_ERROR_WANT_ASYNC: + case SSL_ERROR_WANT_ASYNC_JOB: + /* We just do busy waiting. Nothing clever */ + continue; + } + ret = 0; + } + } while (ret < 0); +} + +#ifndef OPENSSL_NO_PSK +/* Default PSK identity and key */ +static char *psk_identity = "Client_identity"; +/* + * char *psk_key=NULL; by default PSK is not used + */ + +static unsigned int psk_client_cb(SSL *ssl, const char *hint, char *identity, + unsigned int max_identity_len, + unsigned char *psk, + unsigned int max_psk_len) +{ + int ret; + long key_len; + unsigned char *key; + + if (c_debug) + BIO_printf(bio_c_out, "psk_client_cb\n"); + if (!hint) { + /* no ServerKeyExchange message */ + if (c_debug) + BIO_printf(bio_c_out, + "NULL received PSK identity hint, continuing anyway\n"); + } else if (c_debug) + BIO_printf(bio_c_out, "Received PSK identity hint '%s'\n", hint); + + /* + * lookup PSK identity and PSK key based on the given identity hint here + */ + ret = BIO_snprintf(identity, max_identity_len, "%s", psk_identity); + if (ret < 0 || (unsigned int)ret > max_identity_len) + goto out_err; + if (c_debug) + BIO_printf(bio_c_out, "created identity '%s' len=%d\n", identity, + ret); + + /* 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 (max_psk_len > INT_MAX || key_len > (long)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 (c_debug) + BIO_printf(bio_c_out, "created PSK len=%ld\n", key_len); + + return key_len; + out_err: + if (c_debug) + BIO_printf(bio_err, "Error in PSK client callback\n"); + return 0; +} +#endif + +/* This is a context that we pass to callbacks */ +typedef struct tlsextctx_st { + BIO *biodebug; + int ack; +} tlsextctx; + +static int ssl_servername_cb(SSL *s, int *ad, void *arg) +{ + tlsextctx *p = (tlsextctx *) arg; + const char *hn = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name); + if (SSL_get_servername_type(s) != -1) + p->ack = !SSL_session_reused(s) && hn != NULL; + else + BIO_printf(bio_err, "Can't use SSL_get_servername\n"); + + return SSL_TLSEXT_ERR_OK; +} + +#ifndef OPENSSL_NO_SRP + +/* This is a context that we pass to all callbacks */ +typedef struct srp_arg_st { + char *srppassin; + char *srplogin; + int msg; /* copy from c_msg */ + int debug; /* copy from c_debug */ + int amp; /* allow more groups */ + int strength; /* minimal size for N */ +} SRP_ARG; + +# define SRP_NUMBER_ITERATIONS_FOR_PRIME 64 + +static int srp_Verify_N_and_g(const BIGNUM *N, const BIGNUM *g) +{ + BN_CTX *bn_ctx = BN_CTX_new(); + BIGNUM *p = BN_new(); + BIGNUM *r = BN_new(); + int ret = + g != NULL && N != NULL && bn_ctx != NULL && BN_is_odd(N) && + BN_is_prime_ex(N, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 && + p != NULL && BN_rshift1(p, N) && + /* p = (N-1)/2 */ + BN_is_prime_ex(p, SRP_NUMBER_ITERATIONS_FOR_PRIME, bn_ctx, NULL) == 1 && + r != NULL && + /* verify g^((N-1)/2) == -1 (mod N) */ + BN_mod_exp(r, g, p, N, bn_ctx) && + BN_add_word(r, 1) && BN_cmp(r, N) == 0; + + BN_free(r); + BN_free(p); + BN_CTX_free(bn_ctx); + return ret; +} + +/*- + * This callback is used here for two purposes: + * - extended debugging + * - making some primality tests for unknown groups + * The callback is only called for a non default group. + * + * An application does not need the call back at all if + * only the standard groups are used. In real life situations, + * client and server already share well known groups, + * thus there is no need to verify them. + * Furthermore, in case that a server actually proposes a group that + * is not one of those defined in RFC 5054, it is more appropriate + * to add the group to a static list and then compare since + * primality tests are rather cpu consuming. + */ + +static int ssl_srp_verify_param_cb(SSL *s, void *arg) +{ + SRP_ARG *srp_arg = (SRP_ARG *)arg; + BIGNUM *N = NULL, *g = NULL; + + if (((N = SSL_get_srp_N(s)) == NULL) || ((g = SSL_get_srp_g(s)) == NULL)) + return 0; + if (srp_arg->debug || srp_arg->msg || srp_arg->amp == 1) { + BIO_printf(bio_err, "SRP parameters:\n"); + BIO_printf(bio_err, "\tN="); + BN_print(bio_err, N); + BIO_printf(bio_err, "\n\tg="); + BN_print(bio_err, g); + BIO_printf(bio_err, "\n"); + } + + if (SRP_check_known_gN_param(g, N)) + return 1; + + if (srp_arg->amp == 1) { + if (srp_arg->debug) + BIO_printf(bio_err, + "SRP param N and g are not known params, going to check deeper.\n"); + + /* + * The srp_moregroups is a real debugging feature. Implementors + * should rather add the value to the known ones. The minimal size + * has already been tested. + */ + if (BN_num_bits(g) <= BN_BITS && srp_Verify_N_and_g(N, g)) + return 1; + } + BIO_printf(bio_err, "SRP param N and g rejected.\n"); + return 0; +} + +# define PWD_STRLEN 1024 + +static char *ssl_give_srp_client_pwd_cb(SSL *s, void *arg) +{ + SRP_ARG *srp_arg = (SRP_ARG *)arg; + char *pass = app_malloc(PWD_STRLEN + 1, "SRP password buffer"); + PW_CB_DATA cb_tmp; + int l; + + cb_tmp.password = (char *)srp_arg->srppassin; + cb_tmp.prompt_info = "SRP user"; + if ((l = password_callback(pass, PWD_STRLEN, 0, &cb_tmp)) < 0) { + BIO_printf(bio_err, "Can't read Password\n"); + OPENSSL_free(pass); + return NULL; + } + *(pass + l) = '\0'; + + return pass; +} + +#endif + +static char *srtp_profiles = NULL; + +#ifndef OPENSSL_NO_NEXTPROTONEG +/* This the context that we pass to next_proto_cb */ +typedef struct tlsextnextprotoctx_st { + unsigned char *data; + size_t len; + int status; +} tlsextnextprotoctx; + +static tlsextnextprotoctx next_proto; + +static int next_proto_cb(SSL *s, unsigned char **out, unsigned char *outlen, + const unsigned char *in, unsigned int inlen, + void *arg) +{ + tlsextnextprotoctx *ctx = arg; + + if (!c_quiet) { + /* We can assume that |in| is syntactically valid. */ + unsigned i; + BIO_printf(bio_c_out, "Protocols advertised by server: "); + for (i = 0; i < inlen;) { + if (i) + BIO_write(bio_c_out, ", ", 2); + BIO_write(bio_c_out, &in[i + 1], in[i]); + i += in[i] + 1; + } + BIO_write(bio_c_out, "\n", 1); + } + + ctx->status = + SSL_select_next_proto(out, outlen, in, inlen, ctx->data, ctx->len); + return SSL_TLSEXT_ERR_OK; +} +#endif /* ndef OPENSSL_NO_NEXTPROTONEG */ + +static int serverinfo_cli_parse_cb(SSL *s, unsigned int ext_type, + const unsigned char *in, size_t inlen, + int *al, void *arg) +{ + char pem_name[100]; + unsigned char ext_buf[4 + 65536]; + + /* Reconstruct the type/len fields prior to extension data */ + ext_buf[0] = ext_type >> 8; + ext_buf[1] = ext_type & 0xFF; + ext_buf[2] = inlen >> 8; + ext_buf[3] = inlen & 0xFF; + memcpy(ext_buf + 4, in, inlen); + + BIO_snprintf(pem_name, sizeof(pem_name), "SERVERINFO FOR EXTENSION %d", + ext_type); + PEM_write_bio(bio_c_out, pem_name, "", ext_buf, 4 + inlen); + return 1; +} + +/* + * Hex decoder that tolerates optional whitespace. Returns number of bytes + * produced, advances inptr to end of input string. + */ +static ossl_ssize_t hexdecode(const char **inptr, void *result) +{ + unsigned char **out = (unsigned char **)result; + const char *in = *inptr; + unsigned char *ret = app_malloc(strlen(in) / 2, "hexdecode"); + unsigned char *cp = ret; + uint8_t byte; + int nibble = 0; + + if (ret == NULL) + return -1; + + for (byte = 0; *in; ++in) { + int x; + + if (isspace(_UC(*in))) + continue; + x = OPENSSL_hexchar2int(*in); + if (x < 0) { + OPENSSL_free(ret); + return 0; + } + byte |= (char)x; + if ((nibble ^= 1) == 0) { + *cp++ = byte; + byte = 0; + } else { + byte <<= 4; + } + } + if (nibble != 0) { + OPENSSL_free(ret); + return 0; + } + *inptr = in; + + return cp - (*out = ret); +} + +/* + * Decode unsigned 0..255, returns 1 on success, <= 0 on failure. Advances + * inptr to next field skipping leading whitespace. + */ +static ossl_ssize_t checked_uint8(const char **inptr, void *out) +{ + uint8_t *result = (uint8_t *)out; + const char *in = *inptr; + char *endp; + long v; + int e; + + save_errno(); + v = strtol(in, &endp, 10); + e = restore_errno(); + + if (((v == LONG_MIN || v == LONG_MAX) && e == ERANGE) || + endp == in || !isspace(_UC(*endp)) || + v != (*result = (uint8_t) v)) { + return -1; + } + for (in = endp; isspace(_UC(*in)); ++in) + continue; + + *inptr = in; + return 1; +} + +struct tlsa_field { + void *var; + const char *name; + ossl_ssize_t (*parser)(const char **, void *); +}; + +static int tlsa_import_rr(SSL *con, const char *rrdata) +{ + /* Not necessary to re-init these values; the "parsers" do that. */ + static uint8_t usage; + static uint8_t selector; + static uint8_t mtype; + static unsigned char *data; + static struct tlsa_field tlsa_fields[] = { + { &usage, "usage", checked_uint8 }, + { &selector, "selector", checked_uint8 }, + { &mtype, "mtype", checked_uint8 }, + { &data, "data", hexdecode }, + { NULL, } + }; + struct tlsa_field *f; + int ret; + const char *cp = rrdata; + ossl_ssize_t len = 0; + + for (f = tlsa_fields; f->var; ++f) { + /* Returns number of bytes produced, advances cp to next field */ + if ((len = f->parser(&cp, f->var)) <= 0) { + BIO_printf(bio_err, "%s: warning: bad TLSA %s field in: %s\n", + prog, f->name, rrdata); + return 0; + } + } + /* The data field is last, so len is its length */ + ret = SSL_dane_tlsa_add(con, usage, selector, mtype, data, len); + OPENSSL_free(data); + + if (ret == 0) { + ERR_print_errors(bio_err); + BIO_printf(bio_err, "%s: warning: unusable TLSA rrdata: %s\n", + prog, rrdata); + return 0; + } + if (ret < 0) { + ERR_print_errors(bio_err); + BIO_printf(bio_err, "%s: warning: error loading TLSA rrdata: %s\n", + prog, rrdata); + return 0; + } + return ret; +} + +static int tlsa_import_rrset(SSL *con, STACK_OF(OPENSSL_STRING) *rrset) +{ + int num = sk_OPENSSL_STRING_num(rrset); + int count = 0; + int i; + + for (i = 0; i < num; ++i) { + char *rrdata = sk_OPENSSL_STRING_value(rrset, i); + if (tlsa_import_rr(con, rrdata) > 0) + ++count; + } + return count > 0; +} + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_4, OPT_6, OPT_HOST, OPT_PORT, OPT_CONNECT, OPT_UNIX, + OPT_XMPPHOST, OPT_VERIFY, + OPT_CERT, OPT_CRL, OPT_CRL_DOWNLOAD, OPT_SESS_OUT, OPT_SESS_IN, + OPT_CERTFORM, OPT_CRLFORM, OPT_VERIFY_RET_ERROR, OPT_VERIFY_QUIET, + OPT_BRIEF, OPT_PREXIT, OPT_CRLF, OPT_QUIET, OPT_NBIO, + OPT_SSL_CLIENT_ENGINE, OPT_RAND, OPT_IGN_EOF, OPT_NO_IGN_EOF, + OPT_DEBUG, OPT_TLSEXTDEBUG, OPT_STATUS, OPT_WDEBUG, + OPT_MSG, OPT_MSGFILE, OPT_ENGINE, OPT_TRACE, OPT_SECURITY_DEBUG, + OPT_SECURITY_DEBUG_VERBOSE, OPT_SHOWCERTS, OPT_NBIO_TEST, OPT_STATE, +#ifndef OPENSSL_NO_PSK + OPT_PSK_IDENTITY, OPT_PSK, +#endif +#ifndef OPENSSL_NO_SRP + OPT_SRPUSER, OPT_SRPPASS, OPT_SRP_STRENGTH, OPT_SRP_LATEUSER, + OPT_SRP_MOREGROUPS, +#endif + OPT_SSL3, OPT_SSL_CONFIG, + OPT_TLS1_2, OPT_TLS1_1, OPT_TLS1, OPT_DTLS, OPT_DTLS1, + OPT_DTLS1_2, OPT_TIMEOUT, OPT_MTU, OPT_KEYFORM, OPT_PASS, + OPT_CERT_CHAIN, OPT_CAPATH, OPT_NOCAPATH, OPT_CHAINCAPATH, + OPT_VERIFYCAPATH, + OPT_KEY, OPT_RECONNECT, OPT_BUILD_CHAIN, OPT_CAFILE, OPT_NOCAFILE, + OPT_CHAINCAFILE, OPT_VERIFYCAFILE, OPT_NEXTPROTONEG, OPT_ALPN, + OPT_SERVERINFO, OPT_STARTTLS, OPT_SERVERNAME, + OPT_USE_SRTP, OPT_KEYMATEXPORT, OPT_KEYMATEXPORTLEN, OPT_SMTPHOST, + OPT_ASYNC, OPT_SPLIT_SEND_FRAG, OPT_MAX_PIPELINES, OPT_READ_BUF, + OPT_V_ENUM, + OPT_X_ENUM, + OPT_S_ENUM, + OPT_FALLBACKSCSV, OPT_NOCMDS, OPT_PROXY, OPT_DANE_TLSA_DOMAIN, +#ifndef OPENSSL_NO_CT + OPT_CT, OPT_NOCT, OPT_CTLOG_FILE, +#endif + OPT_DANE_TLSA_RRDATA, OPT_DANE_EE_NO_NAME +} OPTION_CHOICE; + +OPTIONS s_client_options[] = { + {"help", OPT_HELP, '-', "Display this summary"}, + {"host", OPT_HOST, 's', "Use -connect instead"}, + {"port", OPT_PORT, 'p', "Use -connect instead"}, + {"connect", OPT_CONNECT, 's', + "TCP/IP where to connect (default is :" PORT ")"}, + {"proxy", OPT_PROXY, 's', + "Connect to via specified proxy to the real server"}, +#ifdef AF_UNIX + {"unix", OPT_UNIX, 's', "Connect over the specified Unix-domain socket"}, +#endif + {"4", OPT_4, '-', "Use IPv4 only"}, +#ifdef AF_INET6 + {"6", OPT_6, '-', "Use IPv6 only"}, +#endif + {"verify", OPT_VERIFY, 'p', "Turn on peer certificate verification"}, + {"cert", OPT_CERT, '<', "Certificate file to use, PEM format assumed"}, + {"certform", OPT_CERTFORM, 'F', + "Certificate format (PEM or DER) PEM default"}, + {"key", OPT_KEY, 's', "Private key file to use, if not in -cert file"}, + {"keyform", OPT_KEYFORM, 'E', "Key format (PEM, DER or engine) PEM default"}, + {"pass", OPT_PASS, 's', "Private key file pass phrase source"}, + {"CApath", OPT_CAPATH, '/', "PEM format directory of CA's"}, + {"CAfile", OPT_CAFILE, '<', "PEM format file 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"}, + {"dane_tlsa_domain", OPT_DANE_TLSA_DOMAIN, 's', "DANE TLSA base domain"}, + {"dane_tlsa_rrdata", OPT_DANE_TLSA_RRDATA, 's', + "DANE TLSA rrdata presentation form"}, + {"dane_ee_no_namechecks", OPT_DANE_EE_NO_NAME, '-', + "Disable name checks when matching DANE-EE(3) TLSA records"}, + {"reconnect", OPT_RECONNECT, '-', + "Drop and re-make the connection with the same Session-ID"}, + {"showcerts", OPT_SHOWCERTS, '-', "Show all certificates in the chain"}, + {"debug", OPT_DEBUG, '-', "Extra output"}, + {"msg", OPT_MSG, '-', "Show protocol messages"}, + {"msgfile", OPT_MSGFILE, '>', + "File to send output of -msg or -trace, instead of stdout"}, + {"nbio_test", OPT_NBIO_TEST, '-', "More ssl protocol testing"}, + {"state", OPT_STATE, '-', "Print the ssl states"}, + {"crlf", OPT_CRLF, '-', "Convert LF from terminal into CRLF"}, + {"quiet", OPT_QUIET, '-', "No s_client output"}, + {"ign_eof", OPT_IGN_EOF, '-', "Ignore input eof (default when -quiet)"}, + {"no_ign_eof", OPT_NO_IGN_EOF, '-', "Don't ignore input eof"}, + {"starttls", OPT_STARTTLS, 's', + "Use the appropriate STARTTLS command before starting TLS"}, + {"xmpphost", OPT_XMPPHOST, 's', + "Host to use with \"-starttls xmpp[-server]\""}, + {"rand", OPT_RAND, 's', + "Load the file(s) into the random number generator"}, + {"sess_out", OPT_SESS_OUT, '>', "File to write SSL session to"}, + {"sess_in", OPT_SESS_IN, '<', "File to read SSL session from"}, + {"use_srtp", OPT_USE_SRTP, 's', + "Offer SRTP key management with a colon-separated profile list"}, + {"keymatexport", OPT_KEYMATEXPORT, 's', + "Export keying material using label"}, + {"keymatexportlen", OPT_KEYMATEXPORTLEN, 'p', + "Export len bytes of keying material (default 20)"}, + {"fallback_scsv", OPT_FALLBACKSCSV, '-', "Send the fallback SCSV"}, + {"name", OPT_SMTPHOST, 's', "Hostname to use for \"-starttls smtp\""}, + {"CRL", OPT_CRL, '<', "CRL file to use"}, + {"crl_download", OPT_CRL_DOWNLOAD, '-', "Download CRL from distribution points"}, + {"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, '-', "Restrict verify output to errors"}, + {"brief", OPT_BRIEF, '-', + "Restrict output to brief summary of connection parameters"}, + {"prexit", OPT_PREXIT, '-', + "Print session information when the program exits"}, + {"security_debug", OPT_SECURITY_DEBUG, '-', + "Enable security debug messages"}, + {"security_debug_verbose", OPT_SECURITY_DEBUG_VERBOSE, '-', + "Output more security debug output"}, + {"cert_chain", OPT_CERT_CHAIN, '<', + "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"}, + {"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)"}, + {"nocommands", OPT_NOCMDS, '-', "Do not use interactive command letters"}, + {"servername", OPT_SERVERNAME, 's', + "Set TLS extension servername in ClientHello"}, + {"tlsextdebug", OPT_TLSEXTDEBUG, '-', + "Hex dump of all TLS extensions received"}, +#ifndef OPENSSL_NO_OCSP + {"status", OPT_STATUS, '-', "Request certificate status from server"}, +#endif + {"serverinfo", OPT_SERVERINFO, 's', + "types Send empty ClientHello extensions (comma-separated numbers)"}, + {"alpn", OPT_ALPN, 's', + "Enable ALPN extension, considering named protocols supported (comma-separated list)"}, + {"async", OPT_ASYNC, '-', "Support asynchronous operation"}, + {"ssl_config", OPT_SSL_CONFIG, 's', "Use specified configuration file"}, + {"split_send_frag", OPT_SPLIT_SEND_FRAG, 'n', + "Size used to split data for encrypt pipelines"}, + {"max_pipelines", OPT_MAX_PIPELINES, 'n', + "Maximum number of encrypt/decrypt pipelines to be used"}, + {"read_buf", OPT_READ_BUF, 'n', + "Default read buffer size to be used for connections"}, + OPT_S_OPTIONS, + OPT_V_OPTIONS, + OPT_X_OPTIONS, +#ifndef OPENSSL_NO_SSL3 + {"ssl3", OPT_SSL3, '-', "Just use SSLv3"}, +#endif +#ifndef OPENSSL_NO_TLS1 + {"tls1", OPT_TLS1, '-', "Just use TLSv1"}, +#endif +#ifndef OPENSSL_NO_TLS1_1 + {"tls1_1", OPT_TLS1_1, '-', "Just use TLSv1.1"}, +#endif +#ifndef OPENSSL_NO_TLS1_2 + {"tls1_2", OPT_TLS1_2, '-', "Just use TLSv1.2"}, +#endif +#ifndef OPENSSL_NO_DTLS + {"dtls", OPT_DTLS, '-', "Use any version of DTLS"}, + {"timeout", OPT_TIMEOUT, '-', + "Enable send/receive timeout on DTLS connections"}, + {"mtu", OPT_MTU, 'p', "Set the link layer MTU"}, +#endif +#ifndef OPENSSL_NO_DTLS1 + {"dtls1", OPT_DTLS1, '-', "Just use DTLSv1"}, +#endif +#ifndef OPENSSL_NO_DTLS1_2 + {"dtls1_2", OPT_DTLS1_2, '-', "Just use DTLSv1.2"}, +#endif +#ifndef OPENSSL_NO_SSL_TRACE + {"trace", OPT_TRACE, '-', "Show trace output of protocol messages"}, +#endif +#ifdef WATT32 + {"wdebug", OPT_WDEBUG, '-', "WATT-32 tcp debugging"}, +#endif + {"nbio", OPT_NBIO, '-', "Use non-blocking IO"}, +#ifndef OPENSSL_NO_PSK + {"psk_identity", OPT_PSK_IDENTITY, 's', "PSK identity"}, + {"psk", OPT_PSK, 's', "PSK in hex (without 0x)"}, +#endif +#ifndef OPENSSL_NO_SRP + {"srpuser", OPT_SRPUSER, 's', "SRP authentication for 'user'"}, + {"srppass", OPT_SRPPASS, 's', "Password for 'user'"}, + {"srp_lateuser", OPT_SRP_LATEUSER, '-', + "SRP username into second ClientHello message"}, + {"srp_moregroups", OPT_SRP_MOREGROUPS, '-', + "Tolerate other than the known g N values."}, + {"srp_strength", OPT_SRP_STRENGTH, 'p', "Minimal length in bits for N"}, +#endif +#ifndef OPENSSL_NO_NEXTPROTONEG + {"nextprotoneg", OPT_NEXTPROTONEG, 's', + "Enable NPN extension, considering named protocols supported (comma-separated list)"}, +#endif +#ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, + {"ssl_client_engine", OPT_SSL_CLIENT_ENGINE, 's', + "Specify engine to be used for client certificate operations"}, +#endif +#ifndef OPENSSL_NO_CT + {"ct", OPT_CT, '-', "Request and parse SCTs (also enables OCSP stapling)"}, + {"noct", OPT_NOCT, '-', "Do not request or parse SCTs (default)"}, + {"ctlogfile", OPT_CTLOG_FILE, '<', "CT log list CONF file"}, +#endif + {NULL, OPT_EOF, 0x00, NULL} +}; + +typedef enum PROTOCOL_choice { + PROTO_OFF, + PROTO_SMTP, + PROTO_POP3, + PROTO_IMAP, + PROTO_FTP, + PROTO_TELNET, + PROTO_XMPP, + PROTO_XMPP_SERVER, + PROTO_CONNECT, + PROTO_IRC +} PROTOCOL_CHOICE; + +static const OPT_PAIR services[] = { + {"smtp", PROTO_SMTP}, + {"pop3", PROTO_POP3}, + {"imap", PROTO_IMAP}, + {"ftp", PROTO_FTP}, + {"xmpp", PROTO_XMPP}, + {"xmpp-server", PROTO_XMPP_SERVER}, + {"telnet", PROTO_TELNET}, + {"irc", PROTO_IRC}, + {NULL, 0} +}; + +#define IS_INET_FLAG(o) \ + (o == OPT_4 || o == OPT_6 || o == OPT_HOST || o == OPT_PORT || o == OPT_CONNECT) +#define IS_UNIX_FLAG(o) (o == OPT_UNIX) + +#define IS_PROT_FLAG(o) \ + (o == OPT_SSL3 || o == OPT_TLS1 || o == OPT_TLS1_1 || o == OPT_TLS1_2 \ + || o == OPT_DTLS || o == OPT_DTLS1 || o == OPT_DTLS1_2) + +/* Free |*dest| and optionally set it to a copy of |source|. */ +static void freeandcopy(char **dest, const char *source) +{ + OPENSSL_free(*dest); + *dest = NULL; + if (source != NULL) + *dest = OPENSSL_strdup(source); +} + +int s_client_main(int argc, char **argv) +{ + BIO *sbio; + EVP_PKEY *key = NULL; + SSL *con = NULL; + SSL_CTX *ctx = NULL; + STACK_OF(X509) *chain = NULL; + X509 *cert = NULL; + X509_VERIFY_PARAM *vpm = NULL; + SSL_EXCERT *exc = NULL; + SSL_CONF_CTX *cctx = NULL; + STACK_OF(OPENSSL_STRING) *ssl_args = NULL; + char *dane_tlsa_domain = NULL; + STACK_OF(OPENSSL_STRING) *dane_tlsa_rrset = NULL; + int dane_ee_no_name = 0; + STACK_OF(X509_CRL) *crls = NULL; + const SSL_METHOD *meth = TLS_client_method(); + const char *CApath = NULL, *CAfile = NULL; + char *cbuf = NULL, *sbuf = NULL; + char *mbuf = NULL, *proxystr = NULL, *connectstr = NULL; + char *cert_file = NULL, *key_file = NULL, *chain_file = NULL; + char *chCApath = NULL, *chCAfile = NULL, *host = NULL; + char *port = OPENSSL_strdup(PORT); + char *inrand = NULL; + char *passarg = NULL, *pass = NULL, *vfyCApath = NULL, *vfyCAfile = NULL; + char *sess_in = NULL, *sess_out = NULL, *crl_file = NULL, *p; + char *xmpphost = NULL; + const char *ehlo = "mail.example.com"; + struct timeval timeout, *timeoutp; + fd_set readfds, writefds; + int noCApath = 0, noCAfile = 0; + int build_chain = 0, cbuf_len, cbuf_off, cert_format = FORMAT_PEM; + int key_format = FORMAT_PEM, crlf = 0, full_log = 1, mbuf_len = 0; + int prexit = 0; + int sdebug = 0; + int reconnect = 0, verify = SSL_VERIFY_NONE, vpmtouched = 0; + int ret = 1, in_init = 1, i, nbio_test = 0, s = -1, k, width, state = 0; + int sbuf_len, sbuf_off, cmdletters = 1; + int socket_family = AF_UNSPEC, socket_type = SOCK_STREAM; + int starttls_proto = PROTO_OFF, crl_format = FORMAT_PEM, crl_download = 0; + int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending; +#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) + int at_eof = 0; +#endif + int read_buf_len = 0; + int fallback_scsv = 0; + long randamt = 0; + OPTION_CHOICE o; +#ifndef OPENSSL_NO_DTLS + int enable_timeouts = 0; + long socket_mtu = 0; +#endif +#ifndef OPENSSL_NO_ENGINE + ENGINE *ssl_client_engine = NULL; +#endif + ENGINE *e = NULL; +#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) + struct timeval tv; +#endif + char *servername = NULL; + const char *alpn_in = NULL; + tlsextctx tlsextcbp = { NULL, 0 }; + const char *ssl_config = NULL; +#define MAX_SI_TYPES 100 + unsigned short serverinfo_types[MAX_SI_TYPES]; + int serverinfo_count = 0, start = 0, len; +#ifndef OPENSSL_NO_NEXTPROTONEG + const char *next_proto_neg_in = NULL; +#endif +#ifndef OPENSSL_NO_SRP + char *srppass = NULL; + int srp_lateuser = 0; + SRP_ARG srp_arg = { NULL, NULL, 0, 0, 0, 1024 }; +#endif +#ifndef OPENSSL_NO_CT + char *ctlog_file = NULL; + int ct_validation = 0; +#endif + int min_version = 0, max_version = 0, prot_opt = 0, no_prot_opt = 0; + int async = 0; + unsigned int split_send_fragment = 0; + unsigned int max_pipelines = 0; + enum { use_inet, use_unix, use_unknown } connect_type = use_unknown; + int count4or6 = 0; + int c_nbio = 0, c_msg = 0, c_ign_eof = 0, c_brief = 0; + int c_tlsextdebug = 0; +#ifndef OPENSSL_NO_OCSP + int c_status_req = 0; +#endif + BIO *bio_c_msg = NULL; + + FD_ZERO(&readfds); + FD_ZERO(&writefds); +/* Known false-positive of MemorySanitizer. */ +#if defined(__has_feature) +# if __has_feature(memory_sanitizer) + __msan_unpoison(&readfds, sizeof(readfds)); + __msan_unpoison(&writefds, sizeof(writefds)); +# endif +#endif + + prog = opt_progname(argv[0]); + c_quiet = 0; + c_debug = 0; + c_showcerts = 0; + c_nbio = 0; + vpm = X509_VERIFY_PARAM_new(); + cctx = SSL_CONF_CTX_new(); + + if (vpm == NULL || cctx == NULL) { + BIO_printf(bio_err, "%s: out of memory\n", prog); + goto end; + } + + cbuf = app_malloc(BUFSIZZ, "cbuf"); + sbuf = app_malloc(BUFSIZZ, "sbuf"); + mbuf = app_malloc(BUFSIZZ, "mbuf"); + + SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT | SSL_CONF_FLAG_CMDLINE); + + prog = opt_init(argc, argv, s_client_options); + while ((o = opt_next()) != OPT_EOF) { + /* Check for intermixing flags. */ + if (connect_type == use_unix && IS_INET_FLAG(o)) { + BIO_printf(bio_err, + "%s: Intermixed protocol flags (unix and internet domains)\n", + prog); + goto end; + } + if (connect_type == use_inet && IS_UNIX_FLAG(o)) { + BIO_printf(bio_err, + "%s: Intermixed protocol flags (internet and unix domains)\n", + prog); + goto end; + } + + 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_<prot>'\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_client_options); + ret = 0; + goto end; + case OPT_4: + connect_type = use_inet; + socket_family = AF_INET; + count4or6++; + break; +#ifdef AF_INET6 + case OPT_6: + connect_type = use_inet; + socket_family = AF_INET6; + count4or6++; + break; +#endif + case OPT_HOST: + connect_type = use_inet; + freeandcopy(&host, opt_arg()); + break; + case OPT_PORT: + connect_type = use_inet; + freeandcopy(&port, opt_arg()); + break; + case OPT_CONNECT: + connect_type = use_inet; + freeandcopy(&connectstr, opt_arg()); + break; + case OPT_PROXY: + proxystr = opt_arg(); + starttls_proto = PROTO_CONNECT; + break; +#ifdef AF_UNIX + case OPT_UNIX: + connect_type = use_unix; + socket_family = AF_UNIX; + freeandcopy(&host, opt_arg()); + break; +#endif + case OPT_XMPPHOST: + xmpphost = opt_arg(); + break; + case OPT_SMTPHOST: + ehlo = opt_arg(); + break; + case OPT_VERIFY: + verify = SSL_VERIFY_PEER; + verify_args.depth = atoi(opt_arg()); + if (!c_quiet) + BIO_printf(bio_err, "verify depth is %d\n", verify_args.depth); + break; + case OPT_CERT: + cert_file = opt_arg(); + break; + case OPT_CRL: + crl_file = opt_arg(); + break; + case OPT_CRL_DOWNLOAD: + crl_download = 1; + break; + case OPT_SESS_OUT: + sess_out = opt_arg(); + break; + case OPT_SESS_IN: + sess_in = opt_arg(); + break; + case OPT_CERTFORM: + if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &cert_format)) + goto opthelp; + break; + case OPT_CRLFORM: + if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &crl_format)) + goto opthelp; + break; + case OPT_VERIFY_RET_ERROR: + verify_args.return_error = 1; + break; + case OPT_VERIFY_QUIET: + verify_args.quiet = 1; + break; + case OPT_BRIEF: + c_brief = verify_args.quiet = c_quiet = 1; + break; + case OPT_S_CASES: + 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_PREXIT: + prexit = 1; + break; + case OPT_CRLF: + crlf = 1; + break; + case OPT_QUIET: + c_quiet = c_ign_eof = 1; + break; + case OPT_NBIO: + c_nbio = 1; + break; + case OPT_NOCMDS: + cmdletters = 0; + break; + case OPT_ENGINE: + e = setup_engine(opt_arg(), 1); + break; + case OPT_SSL_CLIENT_ENGINE: +#ifndef OPENSSL_NO_ENGINE + ssl_client_engine = ENGINE_by_id(opt_arg()); + if (ssl_client_engine == NULL) { + BIO_printf(bio_err, "Error getting client auth engine\n"); + goto opthelp; + } +#endif + break; + case OPT_RAND: + inrand = opt_arg(); + break; + case OPT_IGN_EOF: + c_ign_eof = 1; + break; + case OPT_NO_IGN_EOF: + c_ign_eof = 0; + break; + case OPT_DEBUG: + c_debug = 1; + break; + case OPT_TLSEXTDEBUG: + c_tlsextdebug = 1; + break; + case OPT_STATUS: +#ifndef OPENSSL_NO_OCSP + c_status_req = 1; +#endif + break; + case OPT_WDEBUG: +#ifdef WATT32 + dbug_init(); +#endif + break; + case OPT_MSG: + c_msg = 1; + break; + case OPT_MSGFILE: + bio_c_msg = BIO_new_file(opt_arg(), "w"); + break; + case OPT_TRACE: +#ifndef OPENSSL_NO_SSL_TRACE + c_msg = 2; +#endif + break; + case OPT_SECURITY_DEBUG: + sdebug = 1; + break; + case OPT_SECURITY_DEBUG_VERBOSE: + sdebug = 2; + break; + case OPT_SHOWCERTS: + c_showcerts = 1; + break; + case OPT_NBIO_TEST: + nbio_test = 1; + break; + case OPT_STATE: + state = 1; + break; +#ifndef OPENSSL_NO_PSK + case OPT_PSK_IDENTITY: + psk_identity = opt_arg(); + 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; +#endif +#ifndef OPENSSL_NO_SRP + case OPT_SRPUSER: + srp_arg.srplogin = opt_arg(); + if (min_version < TLS1_VERSION) + min_version = TLS1_VERSION; + break; + case OPT_SRPPASS: + srppass = opt_arg(); + if (min_version < TLS1_VERSION) + min_version = TLS1_VERSION; + break; + case OPT_SRP_STRENGTH: + srp_arg.strength = atoi(opt_arg()); + BIO_printf(bio_err, "SRP minimal length for N is %d\n", + srp_arg.strength); + if (min_version < TLS1_VERSION) + min_version = TLS1_VERSION; + break; + case OPT_SRP_LATEUSER: + srp_lateuser = 1; + if (min_version < TLS1_VERSION) + min_version = TLS1_VERSION; + break; + case OPT_SRP_MOREGROUPS: + srp_arg.amp = 1; + if (min_version < TLS1_VERSION) + min_version = TLS1_VERSION; + break; +#endif + case OPT_SSL_CONFIG: + ssl_config = opt_arg(); + break; + case OPT_SSL3: + min_version = SSL3_VERSION; + max_version = SSL3_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_client_method(); + socket_type = SOCK_DGRAM; +#endif + break; + case OPT_DTLS1: +#ifndef OPENSSL_NO_DTLS1 + meth = DTLS_client_method(); + min_version = DTLS1_VERSION; + max_version = DTLS1_VERSION; + socket_type = SOCK_DGRAM; +#endif + break; + case OPT_DTLS1_2: +#ifndef OPENSSL_NO_DTLS1_2 + meth = DTLS_client_method(); + min_version = DTLS1_2_VERSION; + max_version = DTLS1_2_VERSION; + socket_type = SOCK_DGRAM; +#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_FALLBACKSCSV: + fallback_scsv = 1; + break; + case OPT_KEYFORM: + if (!opt_format(opt_arg(), OPT_FMT_PDE, &key_format)) + goto opthelp; + break; + case OPT_PASS: + passarg = opt_arg(); + break; + case OPT_CERT_CHAIN: + chain_file = opt_arg(); + break; + case OPT_KEY: + key_file = opt_arg(); + break; + case OPT_RECONNECT: + reconnect = 5; + 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_BUILD_CHAIN: + build_chain = 1; + break; + case OPT_CAFILE: + CAfile = opt_arg(); + break; + case OPT_NOCAFILE: + noCAfile = 1; + break; +#ifndef OPENSSL_NO_CT + case OPT_NOCT: + ct_validation = 0; + break; + case OPT_CT: + ct_validation = 1; + break; + case OPT_CTLOG_FILE: + ctlog_file = opt_arg(); + break; +#endif + case OPT_CHAINCAFILE: + chCAfile = opt_arg(); + break; + case OPT_VERIFYCAFILE: + vfyCAfile = opt_arg(); + break; + case OPT_DANE_TLSA_DOMAIN: + dane_tlsa_domain = opt_arg(); + break; + case OPT_DANE_TLSA_RRDATA: + if (dane_tlsa_rrset == NULL) + dane_tlsa_rrset = sk_OPENSSL_STRING_new_null(); + if (dane_tlsa_rrset == NULL || + !sk_OPENSSL_STRING_push(dane_tlsa_rrset, opt_arg())) { + BIO_printf(bio_err, "%s: Memory allocation failure\n", prog); + goto end; + } + break; + case OPT_DANE_EE_NO_NAME: + dane_ee_no_name = 1; + 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_SERVERINFO: + p = opt_arg(); + len = strlen(p); + for (start = 0, i = 0; i <= len; ++i) { + if (i == len || p[i] == ',') { + serverinfo_types[serverinfo_count] = atoi(p + start); + if (++serverinfo_count == MAX_SI_TYPES) + break; + start = i + 1; + } + } + break; + case OPT_STARTTLS: + if (!opt_pair(opt_arg(), services, &starttls_proto)) + goto end; + break; + case OPT_SERVERNAME: + servername = opt_arg(); + break; + case OPT_USE_SRTP: + srtp_profiles = opt_arg(); + break; + case OPT_KEYMATEXPORT: + keymatexportlabel = opt_arg(); + break; + case OPT_KEYMATEXPORTLEN: + keymatexportlen = atoi(opt_arg()); + break; + case OPT_ASYNC: + async = 1; + break; + case OPT_SPLIT_SEND_FRAG: + split_send_fragment = atoi(opt_arg()); + if (split_send_fragment == 0) { + /* + * Not allowed - set to a deliberately bad value so we get an + * error message below + */ + split_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH + 1; + } + break; + case OPT_MAX_PIPELINES: + max_pipelines = atoi(opt_arg()); + break; + case OPT_READ_BUF: + read_buf_len = atoi(opt_arg()); + break; + } + } + if (count4or6 >= 2) { + BIO_printf(bio_err, "%s: Can't use both -4 and -6\n", prog); + goto opthelp; + } + argc = opt_num_rest(); + if (argc != 0) + goto opthelp; + + if (proxystr) { + int res; + char *tmp_host = host, *tmp_port = port; + if (connectstr == NULL) { + BIO_printf(bio_err, "%s: -proxy requires use of -connect\n", prog); + goto opthelp; + } + res = BIO_parse_hostserv(proxystr, &host, &port, BIO_PARSE_PRIO_HOST); + if (tmp_host != host) + OPENSSL_free(tmp_host); + if (tmp_port != port) + OPENSSL_free(tmp_port); + if (!res) { + BIO_printf(bio_err, + "%s: -proxy argument malformed or ambiguous\n", prog); + goto end; + } + } else { + int res = 1; + char *tmp_host = host, *tmp_port = port; + if (connectstr != NULL) + res = BIO_parse_hostserv(connectstr, &host, &port, + BIO_PARSE_PRIO_HOST); + if (tmp_host != host) + OPENSSL_free(tmp_host); + if (tmp_port != port) + OPENSSL_free(tmp_port); + if (!res) { + BIO_printf(bio_err, + "%s: -connect argument malformed or ambiguous\n", + prog); + 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 (split_send_fragment > SSL3_RT_MAX_PLAIN_LENGTH) { + BIO_printf(bio_err, "Bad split send fragment size\n"); + goto end; + } + + if (max_pipelines > SSL_MAX_PIPELINES) { + BIO_printf(bio_err, "Bad max pipelines value\n"); + goto end; + } + +#if !defined(OPENSSL_NO_NEXTPROTONEG) + next_proto.status = -1; + if (next_proto_neg_in) { + next_proto.data = + next_protos_parse(&next_proto.len, next_proto_neg_in); + if (next_proto.data == NULL) { + BIO_printf(bio_err, "Error parsing -nextprotoneg argument\n"); + goto end; + } + } else + next_proto.data = NULL; +#endif + + if (!app_passwd(passarg, NULL, &pass, NULL)) { + BIO_printf(bio_err, "Error getting password\n"); + goto end; + } + + if (key_file == NULL) + key_file = cert_file; + + if (key_file) { + key = load_key(key_file, key_format, 0, pass, e, + "client certificate private key file"); + if (key == NULL) { + ERR_print_errors(bio_err); + goto end; + } + } + + if (cert_file) { + cert = load_cert(cert_file, cert_format, "client certificate file"); + if (cert == NULL) { + ERR_print_errors(bio_err); + goto end; + } + } + + if (chain_file) { + if (!load_certs(chain_file, &chain, FORMAT_PEM, NULL, + "client certificate chain")) + goto end; + } + + if (crl_file) { + 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 (!load_excert(&exc)) + goto end; + + if (!app_RAND_load_file(NULL, 1) && inrand == NULL + && !RAND_status()) { + BIO_printf(bio_err, + "warning, not much extra random data, consider using the -rand option\n"); + } + if (inrand != NULL) { + randamt = app_RAND_load_files(inrand); + BIO_printf(bio_err, "%ld semi-random bytes loaded\n", randamt); + } + + if (bio_c_out == NULL) { + if (c_quiet && !c_debug) { + bio_c_out = BIO_new(BIO_s_null()); + if (c_msg && !bio_c_msg) + bio_c_msg = dup_bio_out(FORMAT_TEXT); + } else if (bio_c_out == NULL) + bio_c_out = dup_bio_out(FORMAT_TEXT); + } +#ifndef OPENSSL_NO_SRP + if (!app_passwd(srppass, NULL, &srp_arg.srppassin, NULL)) { + BIO_printf(bio_err, "Error getting password\n"); + goto end; + } +#endif + + ctx = SSL_CTX_new(meth); + if (ctx == NULL) { + ERR_print_errors(bio_err); + goto end; + } + + 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; + } + } + + 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 (vpmtouched && !SSL_CTX_set1_param(ctx, vpm)) { + BIO_printf(bio_err, "Error setting verify params\n"); + ERR_print_errors(bio_err); + goto end; + } + + if (async) { + SSL_CTX_set_mode(ctx, SSL_MODE_ASYNC); + } + if (split_send_fragment > 0) { + SSL_CTX_set_split_send_fragment(ctx, split_send_fragment); + } + if (max_pipelines > 0) { + SSL_CTX_set_max_pipelines(ctx, max_pipelines); + } + + if (read_buf_len > 0) { + SSL_CTX_set_default_read_buffer_len(ctx, read_buf_len); + } + + 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; + } +#ifndef OPENSSL_NO_ENGINE + if (ssl_client_engine) { + if (!SSL_CTX_set_client_cert_engine(ctx, ssl_client_engine)) { + BIO_puts(bio_err, "Error setting client auth engine\n"); + ERR_print_errors(bio_err); + ENGINE_free(ssl_client_engine); + goto end; + } + ENGINE_free(ssl_client_engine); + } +#endif + +#ifndef OPENSSL_NO_PSK + if (psk_key != NULL) { + if (c_debug) + BIO_printf(bio_c_out, "PSK key given, setting client callback\n"); + SSL_CTX_set_psk_client_callback(ctx, psk_client_cb); + } +#endif +#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 (exc) + ssl_ctx_set_excert(ctx, exc); + +#if !defined(OPENSSL_NO_NEXTPROTONEG) + if (next_proto.data) + SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto); +#endif + if (alpn_in) { + size_t alpn_len; + unsigned char *alpn = next_protos_parse(&alpn_len, alpn_in); + + if (alpn == NULL) { + BIO_printf(bio_err, "Error parsing -alpn argument\n"); + goto end; + } + /* Returns 0 on success! */ + if (SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len) != 0) { + BIO_printf(bio_err, "Error setting ALPN\n"); + goto end; + } + OPENSSL_free(alpn); + } + + for (i = 0; i < serverinfo_count; i++) { + if (!SSL_CTX_add_client_custom_ext(ctx, + serverinfo_types[i], + NULL, NULL, NULL, + serverinfo_cli_parse_cb, NULL)) { + BIO_printf(bio_err, + "Warning: Unable to add custom extension %u, skipping\n", + serverinfo_types[i]); + } + } + + if (state) + SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback); + +#ifndef OPENSSL_NO_CT + /* Enable SCT processing, without early connection termination */ + if (ct_validation && + !SSL_CTX_enable_ct(ctx, SSL_CT_VALIDATION_PERMISSIVE)) { + ERR_print_errors(bio_err); + goto end; + } + + if (!ctx_set_ctlog_list_file(ctx, ctlog_file)) { + if (ct_validation) { + ERR_print_errors(bio_err); + goto end; + } + + /* + * If CT validation is not enabled, the log list isn't needed so don't + * show errors or abort. We try to load it regardless because then we + * can show the names of the logs any SCTs came from (SCTs may be seen + * even with validation disabled). + */ + ERR_clear_error(); + } +#endif + + SSL_CTX_set_verify(ctx, verify, verify_callback); + + if (!ctx_set_verify_locations(ctx, CAfile, CApath, noCAfile, noCApath)) { + ERR_print_errors(bio_err); + goto end; + } + + ssl_ctx_add_crls(ctx, crls, crl_download); + + if (!set_cert_key_stuff(ctx, cert, key, chain, build_chain)) + goto end; + + if (servername != NULL) { + tlsextcbp.biodebug = bio_err; + SSL_CTX_set_tlsext_servername_callback(ctx, ssl_servername_cb); + SSL_CTX_set_tlsext_servername_arg(ctx, &tlsextcbp); + } +# ifndef OPENSSL_NO_SRP + if (srp_arg.srplogin) { + if (!srp_lateuser && !SSL_CTX_set_srp_username(ctx, srp_arg.srplogin)) { + BIO_printf(bio_err, "Unable to set SRP username\n"); + goto end; + } + srp_arg.msg = c_msg; + srp_arg.debug = c_debug; + SSL_CTX_set_srp_cb_arg(ctx, &srp_arg); + SSL_CTX_set_srp_client_pwd_callback(ctx, ssl_give_srp_client_pwd_cb); + SSL_CTX_set_srp_strength(ctx, srp_arg.strength); + if (c_msg || c_debug || srp_arg.amp == 0) + SSL_CTX_set_srp_verify_param_callback(ctx, + ssl_srp_verify_param_cb); + } +# endif + + if (dane_tlsa_domain != NULL) { + if (SSL_CTX_dane_enable(ctx) <= 0) { + BIO_printf(bio_err, + "%s: Error enabling DANE TLSA authentication.\n", + prog); + ERR_print_errors(bio_err); + goto end; + } + } + + con = SSL_new(ctx); + if (sess_in) { + SSL_SESSION *sess; + BIO *stmp = BIO_new_file(sess_in, "r"); + if (!stmp) { + BIO_printf(bio_err, "Can't open session file %s\n", sess_in); + ERR_print_errors(bio_err); + goto end; + } + sess = PEM_read_bio_SSL_SESSION(stmp, NULL, 0, NULL); + BIO_free(stmp); + if (!sess) { + BIO_printf(bio_err, "Can't open session file %s\n", sess_in); + ERR_print_errors(bio_err); + goto end; + } + if (!SSL_set_session(con, sess)) { + BIO_printf(bio_err, "Can't set session\n"); + ERR_print_errors(bio_err); + goto end; + } + SSL_SESSION_free(sess); + } + + if (fallback_scsv) + SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV); + + if (servername != NULL) { + if (!SSL_set_tlsext_host_name(con, servername)) { + BIO_printf(bio_err, "Unable to set TLS servername extension.\n"); + ERR_print_errors(bio_err); + goto end; + } + } + + if (dane_tlsa_domain != NULL) { + if (SSL_dane_enable(con, dane_tlsa_domain) <= 0) { + BIO_printf(bio_err, "%s: Error enabling DANE TLSA " + "authentication.\n", prog); + ERR_print_errors(bio_err); + goto end; + } + if (dane_tlsa_rrset == NULL) { + BIO_printf(bio_err, "%s: DANE TLSA authentication requires at " + "least one -dane_tlsa_rrdata option.\n", prog); + goto end; + } + if (tlsa_import_rrset(con, dane_tlsa_rrset) <= 0) { + BIO_printf(bio_err, "%s: Failed to import any TLSA " + "records.\n", prog); + goto end; + } + if (dane_ee_no_name) + SSL_dane_set_flags(con, DANE_FLAG_NO_DANE_EE_NAMECHECKS); + } else if (dane_tlsa_rrset != NULL) { + BIO_printf(bio_err, "%s: DANE TLSA authentication requires the " + "-dane_tlsa_domain option.\n", prog); + goto end; + } + + re_start: + if (init_client(&s, host, port, socket_family, socket_type) == 0) { + BIO_printf(bio_err, "connect:errno=%d\n", get_last_socket_error()); + BIO_closesocket(s); + goto end; + } + BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s); + + if (c_nbio) { + if (!BIO_socket_nbio(s, 1)) { + ERR_print_errors(bio_err); + goto end; + } + BIO_printf(bio_c_out, "Turned on non blocking io\n"); + } +#ifndef OPENSSL_NO_DTLS + if (socket_type == SOCK_DGRAM) { + union BIO_sock_info_u peer_info; + + sbio = BIO_new_dgram(s, BIO_NOCLOSE); + if ((peer_info.addr = BIO_ADDR_new()) == NULL) { + BIO_printf(bio_err, "memory allocation failure\n"); + BIO_closesocket(s); + goto end; + } + if (!BIO_sock_info(s, BIO_SOCK_INFO_ADDRESS, &peer_info)) { + BIO_printf(bio_err, "getsockname:errno=%d\n", + get_last_socket_error()); + BIO_ADDR_free(peer_info.addr); + BIO_closesocket(s); + goto end; + } + + (void)BIO_ctrl_set_connected(sbio, peer_info.addr); + BIO_ADDR_free(peer_info.addr); + peer_info.addr = NULL; + + 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)); + BIO_free(sbio); + goto shut; + } + 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"); + BIO_free(sbio); + goto shut; + } + } else + /* want to do MTU discovery */ + BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL); + } else +#endif /* OPENSSL_NO_DTLS */ + sbio = BIO_new_socket(s, BIO_NOCLOSE); + + if (nbio_test) { + BIO *test; + + test = BIO_new(BIO_f_nbio_test()); + sbio = BIO_push(test, sbio); + } + + if (c_debug) { + BIO_set_callback(sbio, bio_dump_callback); + BIO_set_callback_arg(sbio, (char *)bio_c_out); + } + if (c_msg) { +#ifndef OPENSSL_NO_SSL_TRACE + if (c_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_c_msg ? bio_c_msg : bio_c_out); + } + + if (c_tlsextdebug) { + SSL_set_tlsext_debug_callback(con, tlsext_cb); + SSL_set_tlsext_debug_arg(con, bio_c_out); + } +#ifndef OPENSSL_NO_OCSP + if (c_status_req) { + SSL_set_tlsext_status_type(con, TLSEXT_STATUSTYPE_ocsp); + SSL_CTX_set_tlsext_status_cb(ctx, ocsp_resp_cb); + SSL_CTX_set_tlsext_status_arg(ctx, bio_c_out); + } +#endif + + SSL_set_bio(con, sbio, sbio); + SSL_set_connect_state(con); + + /* ok, lets connect */ + if (fileno_stdin() > SSL_get_fd(con)) + width = fileno_stdin() + 1; + else + width = SSL_get_fd(con) + 1; + + read_tty = 1; + write_tty = 0; + tty_on = 0; + read_ssl = 1; + write_ssl = 1; + + cbuf_len = 0; + cbuf_off = 0; + sbuf_len = 0; + sbuf_off = 0; + + switch ((PROTOCOL_CHOICE) starttls_proto) { + case PROTO_OFF: + break; + case PROTO_SMTP: + { + /* + * This is an ugly hack that does a lot of assumptions. We do + * have to handle multi-line responses which may come in a single + * packet or not. We therefore have to use BIO_gets() which does + * need a buffering BIO. So during the initial chitchat we do + * push a buffering BIO into the chain that is removed again + * later on to not disturb the rest of the s_client operation. + */ + int foundit = 0; + BIO *fbio = BIO_new(BIO_f_buffer()); + BIO_push(fbio, sbio); + /* wait for multi-line response to end from SMTP */ + do { + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + } + while (mbuf_len > 3 && mbuf[3] == '-'); + BIO_printf(fbio, "EHLO %s\r\n", ehlo); + (void)BIO_flush(fbio); + /* wait for multi-line response to end EHLO SMTP response */ + do { + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + if (strstr(mbuf, "STARTTLS")) + foundit = 1; + } + while (mbuf_len > 3 && mbuf[3] == '-'); + (void)BIO_flush(fbio); + BIO_pop(fbio); + BIO_free(fbio); + if (!foundit) + BIO_printf(bio_err, + "didn't find starttls in server response," + " trying anyway...\n"); + BIO_printf(sbio, "STARTTLS\r\n"); + BIO_read(sbio, sbuf, BUFSIZZ); + } + break; + case PROTO_POP3: + { + BIO_read(sbio, mbuf, BUFSIZZ); + BIO_printf(sbio, "STLS\r\n"); + mbuf_len = BIO_read(sbio, sbuf, BUFSIZZ); + if (mbuf_len < 0) { + BIO_printf(bio_err, "BIO_read failed\n"); + goto end; + } + } + break; + case PROTO_IMAP: + { + int foundit = 0; + BIO *fbio = BIO_new(BIO_f_buffer()); + BIO_push(fbio, sbio); + BIO_gets(fbio, mbuf, BUFSIZZ); + /* STARTTLS command requires CAPABILITY... */ + BIO_printf(fbio, ". CAPABILITY\r\n"); + (void)BIO_flush(fbio); + /* wait for multi-line CAPABILITY response */ + do { + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + if (strstr(mbuf, "STARTTLS")) + foundit = 1; + } + while (mbuf_len > 3 && mbuf[0] != '.'); + (void)BIO_flush(fbio); + BIO_pop(fbio); + BIO_free(fbio); + if (!foundit) + BIO_printf(bio_err, + "didn't find STARTTLS in server response," + " trying anyway...\n"); + BIO_printf(sbio, ". STARTTLS\r\n"); + BIO_read(sbio, sbuf, BUFSIZZ); + } + break; + case PROTO_FTP: + { + BIO *fbio = BIO_new(BIO_f_buffer()); + BIO_push(fbio, sbio); + /* wait for multi-line response to end from FTP */ + do { + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + } + while (mbuf_len > 3 && mbuf[3] == '-'); + (void)BIO_flush(fbio); + BIO_pop(fbio); + BIO_free(fbio); + BIO_printf(sbio, "AUTH TLS\r\n"); + BIO_read(sbio, sbuf, BUFSIZZ); + } + break; + case PROTO_XMPP: + case PROTO_XMPP_SERVER: + { + int seen = 0; + BIO_printf(sbio, "<stream:stream " + "xmlns:stream='http://etherx.jabber.org/streams' " + "xmlns='jabber:%s' to='%s' version='1.0'>", + starttls_proto == PROTO_XMPP ? "client" : "server", + xmpphost ? xmpphost : host); + seen = BIO_read(sbio, mbuf, BUFSIZZ); + mbuf[seen] = 0; + while (!strstr + (mbuf, "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'") + && !strstr(mbuf, + "<starttls xmlns=\"urn:ietf:params:xml:ns:xmpp-tls\"")) + { + seen = BIO_read(sbio, mbuf, BUFSIZZ); + + if (seen <= 0) + goto shut; + + mbuf[seen] = 0; + } + BIO_printf(sbio, + "<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>"); + seen = BIO_read(sbio, sbuf, BUFSIZZ); + sbuf[seen] = 0; + if (!strstr(sbuf, "<proceed")) + goto shut; + mbuf[0] = 0; + } + break; + case PROTO_TELNET: + { + static const unsigned char tls_do[] = { + /* IAC DO START_TLS */ + 255, 253, 46 + }; + static const unsigned char tls_will[] = { + /* IAC WILL START_TLS */ + 255, 251, 46 + }; + static const unsigned char tls_follows[] = { + /* IAC SB START_TLS FOLLOWS IAC SE */ + 255, 250, 46, 1, 255, 240 + }; + int bytes; + + /* Telnet server should demand we issue START_TLS */ + bytes = BIO_read(sbio, mbuf, BUFSIZZ); + if (bytes != 3 || memcmp(mbuf, tls_do, 3) != 0) + goto shut; + /* Agree to issue START_TLS and send the FOLLOWS sub-command */ + BIO_write(sbio, tls_will, 3); + BIO_write(sbio, tls_follows, 6); + (void)BIO_flush(sbio); + /* Telnet server also sent the FOLLOWS sub-command */ + bytes = BIO_read(sbio, mbuf, BUFSIZZ); + if (bytes != 6 || memcmp(mbuf, tls_follows, 6) != 0) + goto shut; + } + break; + case PROTO_CONNECT: + { + enum { + error_proto, /* Wrong protocol, not even HTTP */ + error_connect, /* CONNECT failed */ + success + } foundit = error_connect; + BIO *fbio = BIO_new(BIO_f_buffer()); + + BIO_push(fbio, sbio); + BIO_printf(fbio, "CONNECT %s HTTP/1.0\r\n\r\n", connectstr); + (void)BIO_flush(fbio); + /* + * The first line is the HTTP response. According to RFC 7230, + * it's formated exactly like this: + * + * HTTP/d.d ddd Reason text\r\n + */ + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + if (mbuf[8] != ' ') { + BIO_printf(bio_err, + "%s: HTTP CONNECT failed, incorrect response " + "from proxy\n", prog); + foundit = error_proto; + } else if (mbuf[9] != '2') { + BIO_printf(bio_err, "%s: HTTP CONNECT failed: %s ", prog, + &mbuf[9]); + } else { + foundit = success; + } + if (foundit != error_proto) { + /* Read past all following headers */ + do { + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + } while (mbuf_len > 2); + } + (void)BIO_flush(fbio); + BIO_pop(fbio); + BIO_free(fbio); + if (foundit != success) { + goto shut; + } + } + break; + case PROTO_IRC: + { + int numeric; + BIO *fbio = BIO_new(BIO_f_buffer()); + + BIO_push(fbio, sbio); + BIO_printf(fbio, "STARTTLS\r\n"); + (void)BIO_flush(fbio); + width = SSL_get_fd(con) + 1; + + do { + numeric = 0; + + FD_ZERO(&readfds); + openssl_fdset(SSL_get_fd(con), &readfds); + timeout.tv_sec = S_CLIENT_IRC_READ_TIMEOUT; + timeout.tv_usec = 0; + /* + * If the IRCd doesn't respond within + * S_CLIENT_IRC_READ_TIMEOUT seconds, assume + * it doesn't support STARTTLS. Many IRCds + * will not give _any_ sort of response to a + * STARTTLS command when it's not supported. + */ + if (!BIO_get_buffer_num_lines(fbio) + && !BIO_pending(fbio) + && !BIO_pending(sbio) + && select(width, (void *)&readfds, NULL, NULL, + &timeout) < 1) { + BIO_printf(bio_err, + "Timeout waiting for response (%d seconds).\n", + S_CLIENT_IRC_READ_TIMEOUT); + break; + } + + mbuf_len = BIO_gets(fbio, mbuf, BUFSIZZ); + if (mbuf_len < 1 || sscanf(mbuf, "%*s %d", &numeric) != 1) + break; + /* :example.net 451 STARTTLS :You have not registered */ + /* :example.net 421 STARTTLS :Unknown command */ + if ((numeric == 451 || numeric == 421) + && strstr(mbuf, "STARTTLS") != NULL) { + BIO_printf(bio_err, "STARTTLS not supported: %s", mbuf); + break; + } + if (numeric == 691) { + BIO_printf(bio_err, "STARTTLS negotiation failed: "); + ERR_print_errors(bio_err); + break; + } + } while (numeric != 670); + + (void)BIO_flush(fbio); + BIO_pop(fbio); + BIO_free(fbio); + if (numeric != 670) { + BIO_printf(bio_err, "Server does not support STARTTLS.\n"); + ret = 1; + goto shut; + } + } + } + + for (;;) { + FD_ZERO(&readfds); + FD_ZERO(&writefds); + + if ((SSL_version(con) == DTLS1_VERSION) && + DTLSv1_get_timeout(con, &timeout)) + timeoutp = &timeout; + else + timeoutp = NULL; + + if (SSL_in_init(con) && !SSL_total_renegotiations(con)) { + in_init = 1; + tty_on = 0; + } else { + tty_on = 1; + if (in_init) { + in_init = 0; + + if (sess_out) { + BIO *stmp = BIO_new_file(sess_out, "w"); + if (stmp) { + PEM_write_bio_SSL_SESSION(stmp, SSL_get_session(con)); + BIO_free(stmp); + } else + BIO_printf(bio_err, "Error writing session file %s\n", + sess_out); + } + if (c_brief) { + BIO_puts(bio_err, "CONNECTION ESTABLISHED\n"); + print_ssl_summary(con); + } + + print_stuff(bio_c_out, con, full_log); + if (full_log > 0) + full_log--; + + if (starttls_proto) { + BIO_write(bio_err, mbuf, mbuf_len); + /* We don't need to know any more */ + if (!reconnect) + starttls_proto = PROTO_OFF; + } + + if (reconnect) { + reconnect--; + BIO_printf(bio_c_out, + "drop connection and then reconnect\n"); + do_ssl_shutdown(con); + SSL_set_connect_state(con); + BIO_closesocket(SSL_get_fd(con)); + goto re_start; + } + } + } + + ssl_pending = read_ssl && SSL_has_pending(con); + + if (!ssl_pending) { +#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) + if (tty_on) { + /* + * Note that select() returns when read _would not block_, + * and EOF satisfies that. To avoid a CPU-hogging loop, + * set the flag so we exit. + */ + if (read_tty && !at_eof) + openssl_fdset(fileno_stdin(), &readfds); +#if !defined(OPENSSL_SYS_VMS) + if (write_tty) + openssl_fdset(fileno_stdout(), &writefds); +#endif + } + if (read_ssl) + openssl_fdset(SSL_get_fd(con), &readfds); + if (write_ssl) + openssl_fdset(SSL_get_fd(con), &writefds); +#else + if (!tty_on || !write_tty) { + if (read_ssl) + openssl_fdset(SSL_get_fd(con), &readfds); + if (write_ssl) + openssl_fdset(SSL_get_fd(con), &writefds); + } +#endif + + /* + * 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 Windows/DOS we make the assumption that we can always + * write to the tty: therefore if we need to write to the tty we + * just fall through. Otherwise we timeout the select every + * second and see if there are any keypresses. Note: this is a + * hack, in a proper Windows application we wouldn't do this. + */ + i = 0; + if (!write_tty) { + if (read_tty) { + tv.tv_sec = 1; + tv.tv_usec = 0; + i = select(width, (void *)&readfds, (void *)&writefds, + NULL, &tv); + if (!i && (!has_stdin_waiting() || !read_tty)) + continue; + } else + i = select(width, (void *)&readfds, (void *)&writefds, + NULL, timeoutp); + } +#else + i = select(width, (void *)&readfds, (void *)&writefds, + NULL, timeoutp); +#endif + if (i < 0) { + BIO_printf(bio_err, "bad select %d\n", + get_last_socket_error()); + goto shut; + /* goto end; */ + } + } + + if ((SSL_version(con) == DTLS1_VERSION) + && DTLSv1_handle_timeout(con) > 0) { + BIO_printf(bio_err, "TIMEOUT occurred\n"); + } + + if (!ssl_pending && FD_ISSET(SSL_get_fd(con), &writefds)) { + k = SSL_write(con, &(cbuf[cbuf_off]), (unsigned int)cbuf_len); + switch (SSL_get_error(con, k)) { + case SSL_ERROR_NONE: + cbuf_off += k; + cbuf_len -= k; + if (k <= 0) + goto end; + /* we have done a write(con,NULL,0); */ + if (cbuf_len <= 0) { + read_tty = 1; + write_ssl = 0; + } else { /* if (cbuf_len > 0) */ + + read_tty = 0; + write_ssl = 1; + } + break; + case SSL_ERROR_WANT_WRITE: + BIO_printf(bio_c_out, "write W BLOCK\n"); + write_ssl = 1; + read_tty = 0; + break; + case SSL_ERROR_WANT_ASYNC: + BIO_printf(bio_c_out, "write A BLOCK\n"); + wait_for_async(con); + write_ssl = 1; + read_tty = 0; + break; + case SSL_ERROR_WANT_READ: + BIO_printf(bio_c_out, "write R BLOCK\n"); + write_tty = 0; + read_ssl = 1; + write_ssl = 0; + break; + case SSL_ERROR_WANT_X509_LOOKUP: + BIO_printf(bio_c_out, "write X BLOCK\n"); + break; + case SSL_ERROR_ZERO_RETURN: + if (cbuf_len != 0) { + BIO_printf(bio_c_out, "shutdown\n"); + ret = 0; + goto shut; + } else { + read_tty = 1; + write_ssl = 0; + break; + } + + case SSL_ERROR_SYSCALL: + if ((k != 0) || (cbuf_len != 0)) { + BIO_printf(bio_err, "write:errno=%d\n", + get_last_socket_error()); + goto shut; + } else { + read_tty = 1; + write_ssl = 0; + } + break; + case SSL_ERROR_WANT_ASYNC_JOB: + /* This shouldn't ever happen in s_client - treat as an error */ + case SSL_ERROR_SSL: + ERR_print_errors(bio_err); + goto shut; + } + } +#if defined(OPENSSL_SYS_WINDOWS) || defined(OPENSSL_SYS_MSDOS) || defined(OPENSSL_SYS_VMS) + /* Assume Windows/DOS/BeOS can always write */ + else if (!ssl_pending && write_tty) +#else + else if (!ssl_pending && FD_ISSET(fileno_stdout(), &writefds)) +#endif + { +#ifdef CHARSET_EBCDIC + ascii2ebcdic(&(sbuf[sbuf_off]), &(sbuf[sbuf_off]), sbuf_len); +#endif + i = raw_write_stdout(&(sbuf[sbuf_off]), sbuf_len); + + if (i <= 0) { + BIO_printf(bio_c_out, "DONE\n"); + ret = 0; + goto shut; + /* goto end; */ + } + + sbuf_len -= i;; + sbuf_off += i; + if (sbuf_len <= 0) { + read_ssl = 1; + write_tty = 0; + } + } else if (ssl_pending || FD_ISSET(SSL_get_fd(con), &readfds)) { +#ifdef RENEG + { + static int iiii; + if (++iiii == 52) { + SSL_renegotiate(con); + iiii = 0; + } + } +#endif + k = SSL_read(con, sbuf, 1024 /* BUFSIZZ */ ); + + switch (SSL_get_error(con, k)) { + case SSL_ERROR_NONE: + if (k <= 0) + goto end; + sbuf_off = 0; + sbuf_len = k; + + read_ssl = 0; + write_tty = 1; + break; + case SSL_ERROR_WANT_ASYNC: + BIO_printf(bio_c_out, "read A BLOCK\n"); + wait_for_async(con); + write_tty = 0; + read_ssl = 1; + if ((read_tty == 0) && (write_ssl == 0)) + write_ssl = 1; + break; + case SSL_ERROR_WANT_WRITE: + BIO_printf(bio_c_out, "read W BLOCK\n"); + write_ssl = 1; + read_tty = 0; + break; + case SSL_ERROR_WANT_READ: + BIO_printf(bio_c_out, "read R BLOCK\n"); + write_tty = 0; + read_ssl = 1; + if ((read_tty == 0) && (write_ssl == 0)) + write_ssl = 1; + break; + case SSL_ERROR_WANT_X509_LOOKUP: + BIO_printf(bio_c_out, "read X BLOCK\n"); + break; + case SSL_ERROR_SYSCALL: + ret = get_last_socket_error(); + if (c_brief) + BIO_puts(bio_err, "CONNECTION CLOSED BY SERVER\n"); + else + BIO_printf(bio_err, "read:errno=%d\n", ret); + goto shut; + case SSL_ERROR_ZERO_RETURN: + BIO_printf(bio_c_out, "closed\n"); + ret = 0; + goto shut; + case SSL_ERROR_WANT_ASYNC_JOB: + /* This shouldn't ever happen in s_client. Treat as an error */ + case SSL_ERROR_SSL: + ERR_print_errors(bio_err); + goto shut; + /* break; */ + } + } +/* OPENSSL_SYS_MSDOS includes OPENSSL_SYS_WINDOWS */ +#if defined(OPENSSL_SYS_MSDOS) + else if (has_stdin_waiting()) +#else + else if (FD_ISSET(fileno_stdin(), &readfds)) +#endif + { + if (crlf) { + int j, lf_num; + + i = raw_read_stdin(cbuf, BUFSIZZ / 2); + lf_num = 0; + /* both loops are skipped when i <= 0 */ + for (j = 0; j < i; j++) + if (cbuf[j] == '\n') + lf_num++; + for (j = i - 1; j >= 0; j--) { + cbuf[j + lf_num] = cbuf[j]; + if (cbuf[j] == '\n') { + lf_num--; + i++; + cbuf[j + lf_num] = '\r'; + } + } + assert(lf_num == 0); + } else + i = raw_read_stdin(cbuf, BUFSIZZ); +#if !defined(OPENSSL_SYS_WINDOWS) && !defined(OPENSSL_SYS_MSDOS) + if (i == 0) + at_eof = 1; +#endif + + if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q' && cmdletters))) { + BIO_printf(bio_err, "DONE\n"); + ret = 0; + goto shut; + } + + if ((!c_ign_eof) && (cbuf[0] == 'R' && cmdletters)) { + BIO_printf(bio_err, "RENEGOTIATING\n"); + SSL_renegotiate(con); + cbuf_len = 0; + } +#ifndef OPENSSL_NO_HEARTBEATS + else if ((!c_ign_eof) && (cbuf[0] == 'B' && cmdletters)) { + BIO_printf(bio_err, "HEARTBEATING\n"); + SSL_heartbeat(con); + cbuf_len = 0; + } +#endif + else { + cbuf_len = i; + cbuf_off = 0; +#ifdef CHARSET_EBCDIC + ebcdic2ascii(cbuf, cbuf, i); +#endif + } + + write_ssl = 1; + read_tty = 0; + } + } + + ret = 0; + shut: + if (in_init) + print_stuff(bio_c_out, con, full_log); + do_ssl_shutdown(con); + + /* + * Give the socket time to send its last data before we close it. + * No amount of setting SO_LINGER etc on the socket seems to persuade + * Windows to send the data before closing the socket...but sleeping + * for a short time seems to do it (units in ms) + * TODO: Find a better way to do this + */ +#if defined(OPENSSL_SYS_WINDOWS) + Sleep(50); +#elif defined(OPENSSL_SYS_CYGWIN) + usleep(50000); +#endif + + /* + * If we ended with an alert being sent, but still with data in the + * network buffer to be read, then calling BIO_closesocket() will + * result in a TCP-RST being sent. On some platforms (notably + * Windows) then this will result in the peer immediately abandoning + * the connection including any buffered alert data before it has + * had a chance to be read. Shutting down the sending side first, + * and then closing the socket sends TCP-FIN first followed by + * TCP-RST. This seems to allow the peer to read the alert data. + */ + shutdown(SSL_get_fd(con), 1); /* SHUT_WR */ + BIO_closesocket(SSL_get_fd(con)); + end: + if (con != NULL) { + if (prexit != 0) + print_stuff(bio_c_out, con, 1); + SSL_free(con); + } +#if !defined(OPENSSL_NO_NEXTPROTONEG) + OPENSSL_free(next_proto.data); +#endif + SSL_CTX_free(ctx); + X509_free(cert); + sk_X509_CRL_pop_free(crls, X509_CRL_free); + EVP_PKEY_free(key); + sk_X509_pop_free(chain, X509_free); + OPENSSL_free(pass); +#ifndef OPENSSL_NO_SRP + OPENSSL_free(srp_arg.srppassin); +#endif + OPENSSL_free(connectstr); + OPENSSL_free(host); + OPENSSL_free(port); + X509_VERIFY_PARAM_free(vpm); + ssl_excert_free(exc); + sk_OPENSSL_STRING_free(ssl_args); + sk_OPENSSL_STRING_free(dane_tlsa_rrset); + SSL_CONF_CTX_free(cctx); + OPENSSL_clear_free(cbuf, BUFSIZZ); + OPENSSL_clear_free(sbuf, BUFSIZZ); + OPENSSL_clear_free(mbuf, BUFSIZZ); + release_engine(e); + BIO_free(bio_c_out); + bio_c_out = NULL; + BIO_free(bio_c_msg); + bio_c_msg = NULL; + return (ret); +} + +static void print_stuff(BIO *bio, SSL *s, int full) +{ + X509 *peer = NULL; + char buf[BUFSIZ]; + STACK_OF(X509) *sk; + STACK_OF(X509_NAME) *sk2; + const SSL_CIPHER *c; + X509_NAME *xn; + int i; +#ifndef OPENSSL_NO_COMP + const COMP_METHOD *comp, *expansion; +#endif + unsigned char *exportedkeymat; +#ifndef OPENSSL_NO_CT + const SSL_CTX *ctx = SSL_get_SSL_CTX(s); +#endif + + if (full) { + int got_a_chain = 0; + + sk = SSL_get_peer_cert_chain(s); + if (sk != NULL) { + got_a_chain = 1; + + BIO_printf(bio, "---\nCertificate chain\n"); + for (i = 0; i < sk_X509_num(sk); i++) { + X509_NAME_oneline(X509_get_subject_name(sk_X509_value(sk, i)), + buf, sizeof(buf)); + BIO_printf(bio, "%2d s:%s\n", i, buf); + X509_NAME_oneline(X509_get_issuer_name(sk_X509_value(sk, i)), + buf, sizeof(buf)); + BIO_printf(bio, " i:%s\n", buf); + if (c_showcerts) + PEM_write_bio_X509(bio, sk_X509_value(sk, i)); + } + } + + BIO_printf(bio, "---\n"); + peer = SSL_get_peer_certificate(s); + if (peer != NULL) { + BIO_printf(bio, "Server certificate\n"); + + /* Redundant if we showed the whole chain */ + if (!(c_showcerts && got_a_chain)) + PEM_write_bio_X509(bio, peer); + X509_NAME_oneline(X509_get_subject_name(peer), buf, sizeof(buf)); + BIO_printf(bio, "subject=%s\n", buf); + X509_NAME_oneline(X509_get_issuer_name(peer), buf, sizeof(buf)); + BIO_printf(bio, "issuer=%s\n", buf); + } else + BIO_printf(bio, "no peer certificate available\n"); + + sk2 = SSL_get_client_CA_list(s); + if ((sk2 != NULL) && (sk_X509_NAME_num(sk2) > 0)) { + BIO_printf(bio, "---\nAcceptable client certificate CA names\n"); + for (i = 0; i < sk_X509_NAME_num(sk2); i++) { + xn = sk_X509_NAME_value(sk2, i); + X509_NAME_oneline(xn, buf, sizeof(buf)); + BIO_write(bio, buf, strlen(buf)); + BIO_write(bio, "\n", 1); + } + } else { + BIO_printf(bio, "---\nNo client certificate CA names sent\n"); + } + + ssl_print_sigalgs(bio, s); + ssl_print_tmp_key(bio, s); + +#ifndef OPENSSL_NO_CT + /* + * When the SSL session is anonymous, or resumed via an abbreviated + * handshake, no SCTs are provided as part of the handshake. While in + * a resumed session SCTs may be present in the session's certificate, + * no callbacks are invoked to revalidate these, and in any case that + * set of SCTs may be incomplete. Thus it makes little sense to + * attempt to display SCTs from a resumed session's certificate, and of + * course none are associated with an anonymous peer. + */ + if (peer != NULL && !SSL_session_reused(s) && SSL_ct_is_enabled(s)) { + const STACK_OF(SCT) *scts = SSL_get0_peer_scts(s); + int sct_count = scts != NULL ? sk_SCT_num(scts) : 0; + + BIO_printf(bio, "---\nSCTs present (%i)\n", sct_count); + if (sct_count > 0) { + const CTLOG_STORE *log_store = SSL_CTX_get0_ctlog_store(ctx); + + BIO_printf(bio, "---\n"); + for (i = 0; i < sct_count; ++i) { + SCT *sct = sk_SCT_value(scts, i); + + BIO_printf(bio, "SCT validation status: %s\n", + SCT_validation_status_string(sct)); + SCT_print(sct, bio, 0, log_store); + if (i < sct_count - 1) + BIO_printf(bio, "\n---\n"); + } + BIO_printf(bio, "\n"); + } + } +#endif + + BIO_printf(bio, + "---\nSSL handshake has read %"BIO_PRI64"u" + " bytes and written %"BIO_PRI64"u bytes\n", + BIO_number_read(SSL_get_rbio(s)), + BIO_number_written(SSL_get_wbio(s))); + } + print_verify_detail(s, bio); + BIO_printf(bio, (SSL_session_reused(s) ? "---\nReused, " : "---\nNew, ")); + c = SSL_get_current_cipher(s); + BIO_printf(bio, "%s, Cipher is %s\n", + SSL_CIPHER_get_version(c), SSL_CIPHER_get_name(c)); + if (peer != NULL) { + EVP_PKEY *pktmp; + + pktmp = X509_get0_pubkey(peer); + BIO_printf(bio, "Server public key is %d bit\n", + EVP_PKEY_bits(pktmp)); + } + BIO_printf(bio, "Secure Renegotiation IS%s supported\n", + SSL_get_secure_renegotiation_support(s) ? "" : " NOT"); +#ifndef OPENSSL_NO_COMP + comp = SSL_get_current_compression(s); + expansion = SSL_get_current_expansion(s); + BIO_printf(bio, "Compression: %s\n", + comp ? SSL_COMP_get_name(comp) : "NONE"); + BIO_printf(bio, "Expansion: %s\n", + expansion ? SSL_COMP_get_name(expansion) : "NONE"); +#endif + +#ifdef SSL_DEBUG + { + /* Print out local port of connection: useful for debugging */ + int sock; + union BIO_sock_info_u info; + + sock = SSL_get_fd(s); + if ((info.addr = BIO_ADDR_new()) != NULL + && BIO_sock_info(sock, BIO_SOCK_INFO_ADDRESS, &info)) { + BIO_printf(bio_c_out, "LOCAL PORT is %u\n", + ntohs(BIO_ADDR_rawport(info.addr))); + } + BIO_ADDR_free(info.addr); + } +#endif + +#if !defined(OPENSSL_NO_NEXTPROTONEG) + if (next_proto.status != -1) { + const unsigned char *proto; + unsigned int proto_len; + SSL_get0_next_proto_negotiated(s, &proto, &proto_len); + BIO_printf(bio, "Next protocol: (%d) ", next_proto.status); + BIO_write(bio, proto, proto_len); + BIO_write(bio, "\n", 1); + } +#endif + { + const unsigned char *proto; + unsigned int proto_len; + SSL_get0_alpn_selected(s, &proto, &proto_len); + if (proto_len > 0) { + BIO_printf(bio, "ALPN protocol: "); + BIO_write(bio, proto, proto_len); + BIO_write(bio, "\n", 1); + } else + BIO_printf(bio, "No ALPN negotiated\n"); + } + +#ifndef OPENSSL_NO_SRTP + { + SRTP_PROTECTION_PROFILE *srtp_profile = + SSL_get_selected_srtp_profile(s); + + if (srtp_profile) + BIO_printf(bio, "SRTP Extension negotiated, profile=%s\n", + srtp_profile->name); + } +#endif + + SSL_SESSION_print(bio, SSL_get_session(s)); + if (SSL_get_session(s) != NULL && keymatexportlabel != NULL) { + BIO_printf(bio, "Keying material exporter:\n"); + BIO_printf(bio, " Label: '%s'\n", keymatexportlabel); + BIO_printf(bio, " Length: %i bytes\n", keymatexportlen); + exportedkeymat = app_malloc(keymatexportlen, "export key"); + if (!SSL_export_keying_material(s, exportedkeymat, + keymatexportlen, + keymatexportlabel, + strlen(keymatexportlabel), + NULL, 0, 0)) { + BIO_printf(bio, " Error\n"); + } else { + BIO_printf(bio, " Keying material: "); + for (i = 0; i < keymatexportlen; i++) + BIO_printf(bio, "%02X", exportedkeymat[i]); + BIO_printf(bio, "\n"); + } + OPENSSL_free(exportedkeymat); + } + BIO_printf(bio, "---\n"); + X509_free(peer); + /* flush, or debugging output gets mixed with http response */ + (void)BIO_flush(bio); +} + +# ifndef OPENSSL_NO_OCSP +static int ocsp_resp_cb(SSL *s, void *arg) +{ + const unsigned char *p; + int len; + OCSP_RESPONSE *rsp; + len = SSL_get_tlsext_status_ocsp_resp(s, &p); + BIO_puts(arg, "OCSP response: "); + if (!p) { + BIO_puts(arg, "no response sent\n"); + return 1; + } + rsp = d2i_OCSP_RESPONSE(NULL, &p, len); + if (!rsp) { + BIO_puts(arg, "response parse error\n"); + BIO_dump_indent(arg, (char *)p, len, 4); + return 0; + } + BIO_puts(arg, "\n======================================\n"); + OCSP_RESPONSE_print(arg, rsp, 0); + BIO_puts(arg, "======================================\n"); + OCSP_RESPONSE_free(rsp); + return 1; +} +# endif + +#endif /* OPENSSL_NO_SOCK */ |