/*-
* BIO_accept_ex - Accept new incoming connections
* @sock: the listening socket
* @addr: the BIO_ADDR to store the peer address in
* @options: BIO socket options, applied on the accepted socket.
*
*/
int BIO_accept_ex(int accept_sock, BIO_ADDR *addr_, int options)
{
socklen_t len;
int accepted_sock;
BIO_ADDR locaddr;
BIO_ADDR *addr = addr_ == NULL ? &locaddr : addr_;
len = sizeof(*addr);
accepted_sock = accept(accept_sock,
BIO_ADDR_sockaddr_noconst(addr), &len);
if (accepted_sock == -1) {
if (!BIO_sock_should_retry(accepted_sock)) {
SYSerr(SYS_F_ACCEPT, get_last_socket_error());
BIOerr(BIO_F_BIO_ACCEPT_EX, BIO_R_ACCEPT_ERROR);
}
return INVALID_SOCKET;
}
if (!BIO_socket_nbio(accepted_sock, (options & BIO_SOCK_NONBLOCK) != 0)) {
closesocket(accepted_sock);
return INVALID_SOCKET;
}
return accepted_sock;
}
/*-
* BIO_connect - connect to an address
* @sock: the socket to connect with
* @addr: the address to connect to
* @options: BIO socket options
*
* Connects to the address using the given socket and options.
*
* Options can be a combination of the following:
* - BIO_SOCK_KEEPALIVE: enable regularly sending keep-alive messages.
* - BIO_SOCK_NONBLOCK: Make the socket non-blocking.
* - BIO_SOCK_NODELAY: don't delay small messages.
*
* options holds BIO socket options that can be used
* You should call this for every address returned by BIO_lookup
* until the connection is successful.
*
* Returns 1 on success or 0 on failure. On failure errno is set
* and an error status is added to the OpenSSL error stack.
*/
int BIO_connect(int sock, const BIO_ADDR *addr, int options)
{
const int on = 1;
if (sock == -1) {
BIOerr(BIO_F_BIO_CONNECT, BIO_R_INVALID_SOCKET);
return 0;
}
if (!BIO_socket_nbio(sock, (options & BIO_SOCK_NONBLOCK) != 0))
return 0;
if (options & BIO_SOCK_KEEPALIVE) {
if (setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
(const void *)&on, sizeof(on)) != 0) {
SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_CONNECT, BIO_R_UNABLE_TO_KEEPALIVE);
return 0;
}
}
if (options & BIO_SOCK_NODELAY) {
if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
(const void *)&on, sizeof(on)) != 0) {
SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_CONNECT, BIO_R_UNABLE_TO_NODELAY);
return 0;
}
}
if (connect(sock, BIO_ADDR_sockaddr(addr),
BIO_ADDR_sockaddr_size(addr)) == -1) {
if (!BIO_sock_should_retry(-1)) {
SYSerr(SYS_F_CONNECT, get_last_socket_error());
BIOerr(BIO_F_BIO_CONNECT, BIO_R_CONNECT_ERROR);
}
return 0;
}
return 1;
}
static int acpt_state(BIO *b, BIO_ACCEPT *c)
{
BIO *bio = NULL, *dbio;
int s = -1;
int i;
again:
switch (c->state) {
case ACPT_S_BEFORE:
if (c->param_addr == NULL) {
BIOerr(BIO_F_ACPT_STATE, BIO_R_NO_ACCEPT_PORT_SPECIFIED);
return (-1);
}
s = BIO_get_accept_socket(c->param_addr, c->bind_mode);
if (s == INVALID_SOCKET)
return (-1);
if (c->accept_nbio) {
if (!BIO_socket_nbio(s, 1)) {
closesocket(s);
BIOerr(BIO_F_ACPT_STATE,
BIO_R_ERROR_SETTING_NBIO_ON_ACCEPT_SOCKET);
return (-1);
}
}
c->accept_sock = s;
b->num = s;
c->state = ACPT_S_GET_ACCEPT_SOCKET;
return (1);
/* break; */
case ACPT_S_GET_ACCEPT_SOCKET:
if (b->next_bio != NULL) {
c->state = ACPT_S_OK;
goto again;
}
BIO_clear_retry_flags(b);
b->retry_reason = 0;
i = BIO_accept(c->accept_sock, &(c->addr));
/* -2 return means we should retry */
if (i == -2) {
BIO_set_retry_special(b);
b->retry_reason = BIO_RR_ACCEPT;
return -1;
}
if (i < 0)
return (i);
bio = BIO_new_socket(i, BIO_CLOSE);
if (bio == NULL)
goto err;
BIO_set_callback(bio, BIO_get_callback(b));
BIO_set_callback_arg(bio, BIO_get_callback_arg(b));
if (c->nbio) {
if (!BIO_socket_nbio(i, 1)) {
BIOerr(BIO_F_ACPT_STATE,
BIO_R_ERROR_SETTING_NBIO_ON_ACCEPTED_SOCKET);
goto err;
}
}
/*
* If the accept BIO has an bio_chain, we dup it and put the new
* socket at the end.
*/
if (c->bio_chain != NULL) {
if ((dbio = BIO_dup_chain(c->bio_chain)) == NULL)
goto err;
if (!BIO_push(dbio, bio))
goto err;
bio = dbio;
}
if (BIO_push(b, bio) == NULL)
goto err;
c->state = ACPT_S_OK;
return (1);
err:
if (bio != NULL)
BIO_free(bio);
else if (s >= 0)
closesocket(s);
return (0);
/* break; */
case ACPT_S_OK:
if (b->next_bio == NULL) {
c->state = ACPT_S_GET_ACCEPT_SOCKET;
goto again;
}
return (1);
/* break; */
default:
return (0);
/* break; */
}
}
/*-
* BIO_listen - Creates a listen socket
* @sock: the socket to listen with
* @addr: local address to bind to
* @options: BIO socket options
*
* Binds to the address using the given socket and options, then
* starts listening for incoming connections.
*
* Options can be a combination of the following:
* - BIO_SOCK_KEEPALIVE: enable regularly sending keep-alive messages.
* - BIO_SOCK_NONBLOCK: Make the socket non-blocking.
* - BIO_SOCK_NODELAY: don't delay small messages.
* - BIO_SOCK_REUSEADDR: Try to reuse the address and port combination
* for a recently closed port.
* - BIO_SOCK_V6_ONLY: When creating an IPv6 socket, make it listen only
* for IPv6 addresses and not IPv4 addresses mapped to IPv6.
*
* It's recommended that you set up both an IPv6 and IPv4 listen socket, and
* then check both for new clients that connect to it. You want to set up
* the socket as non-blocking in that case since else it could hang.
*
* Not all operating systems support IPv4 addresses on an IPv6 socket, and for
* others it's an option. If you pass the BIO_LISTEN_V6_ONLY it will try to
* create the IPv6 sockets to only listen for IPv6 connection.
*
* It could be that the first BIO_listen() call will listen to all the IPv6
* and IPv4 addresses and that then trying to bind to the IPv4 address will
* fail. We can't tell the difference between already listening ourself to
* it and someone else listening to it when failing and errno is EADDRINUSE, so
* it's recommended to not give an error in that case if the first call was
* successful.
*
* When restarting the program it could be that the port is still in use. If
* you set to BIO_SOCK_REUSEADDR option it will try to reuse the port anyway.
* It's recommended that you use this.
*/
int BIO_listen(int sock, const BIO_ADDR *addr, int options)
{
int on = 1;
int socktype;
socklen_t socktype_len = sizeof(socktype);
if (sock == -1) {
BIOerr(BIO_F_BIO_LISTEN, BIO_R_INVALID_SOCKET);
return 0;
}
if (getsockopt(sock, SOL_SOCKET, SO_TYPE,
(void *)&socktype, &socktype_len) != 0
|| socktype_len != sizeof(socktype)) {
SYSerr(SYS_F_GETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_GETTING_SOCKTYPE);
return 0;
}
if (!BIO_socket_nbio(sock, (options & BIO_SOCK_NONBLOCK) != 0))
return 0;
# ifndef OPENSSL_SYS_WINDOWS
/* SO_REUSEADDR has different behavior on Windows than on
* other operating systems, don't set it there. */
if (options & BIO_SOCK_REUSEADDR) {
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
(const void *)&on, sizeof(on)) != 0) {
SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_REUSEADDR);
return 0;
}
}
# endif
if (options & BIO_SOCK_KEEPALIVE) {
if (setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
(const void *)&on, sizeof(on)) != 0) {
SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_KEEPALIVE);
return 0;
}
}
if (options & BIO_SOCK_NODELAY) {
if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
(const void *)&on, sizeof(on)) != 0) {
SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_NODELAY);
return 0;
}
}
# ifdef IPV6_V6ONLY
if ((options & BIO_SOCK_V6_ONLY) && BIO_ADDR_family(addr) == AF_INET6) {
if (setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
(const void *)&on, sizeof(on)) != 0) {
SYSerr(SYS_F_SETSOCKOPT, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_LISTEN_V6_ONLY);
return 0;
}
}
# endif
if (bind(sock, BIO_ADDR_sockaddr(addr), BIO_ADDR_sockaddr_size(addr)) != 0) {
SYSerr(SYS_F_BIND, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_BIND_SOCKET);
return 0;
}
if (socktype != SOCK_DGRAM && listen(sock, MAX_LISTEN) == -1) {
SYSerr(SYS_F_LISTEN, get_last_socket_error());
BIOerr(BIO_F_BIO_LISTEN, BIO_R_UNABLE_TO_LISTEN_SOCKET);
return 0;
}
return 1;
}
int
s_client_main(int argc, char **argv)
{
unsigned int off = 0, clr = 0;
SSL *con = NULL;
int s, k, state = 0, af = AF_UNSPEC;
char *cbuf = NULL, *sbuf = NULL, *mbuf = NULL;
int cbuf_len, cbuf_off;
int sbuf_len, sbuf_off;
char *port = PORT_STR;
int full_log = 1;
char *host = SSL_HOST_NAME;
char *xmpphost = NULL;
char *proxy = NULL, *connect = NULL;
char *cert_file = NULL, *key_file = NULL;
int cert_format = FORMAT_PEM, key_format = FORMAT_PEM;
char *passarg = NULL, *pass = NULL;
X509 *cert = NULL;
EVP_PKEY *key = NULL;
char *CApath = NULL, *CAfile = NULL, *cipher = NULL;
int reconnect = 0, badop = 0, verify = SSL_VERIFY_NONE, bugs = 0;
int crlf = 0;
int write_tty, read_tty, write_ssl, read_ssl, tty_on, ssl_pending;
SSL_CTX *ctx = NULL;
int ret = 1, in_init = 1, i, nbio_test = 0;
int starttls_proto = PROTO_OFF;
int prexit = 0;
X509_VERIFY_PARAM *vpm = NULL;
int badarg = 0;
const SSL_METHOD *meth = NULL;
int socket_type = SOCK_STREAM;
BIO *sbio;
int mbuf_len = 0;
struct timeval timeout;
const char *errstr = NULL;
char *servername = NULL;
tlsextctx tlsextcbp =
{NULL, 0};
const char *next_proto_neg_in = NULL;
const char *alpn_in = NULL;
char *sess_in = NULL;
char *sess_out = NULL;
struct sockaddr peer;
int peerlen = sizeof(peer);
int enable_timeouts = 0;
long socket_mtu = 0;
meth = SSLv23_client_method();
c_Pause = 0;
c_quiet = 0;
c_ign_eof = 0;
c_debug = 0;
c_msg = 0;
c_showcerts = 0;
if (((cbuf = malloc(BUFSIZZ)) == NULL) ||
((sbuf = malloc(BUFSIZZ)) == NULL) ||
((mbuf = malloc(BUFSIZZ + 1)) == NULL)) { /* NUL byte */
BIO_printf(bio_err, "out of memory\n");
goto end;
}
verify_depth = 0;
c_nbio = 0;
argc--;
argv++;
while (argc >= 1) {
if (strcmp(*argv, "-host") == 0) {
if (--argc < 1)
goto bad;
host = *(++argv);
} else if (strcmp(*argv, "-port") == 0) {
if (--argc < 1)
goto bad;
port = *(++argv);
if (port == NULL || *port == '\0')
goto bad;
} else if (strcmp(*argv, "-connect") == 0) {
if (--argc < 1)
goto bad;
connect = *(++argv);
} else if (strcmp(*argv, "-proxy") == 0) {
if (--argc < 1)
goto bad;
proxy = *(++argv);
} else if (strcmp(*argv,"-xmpphost") == 0) {
if (--argc < 1)
goto bad;
xmpphost= *(++argv);
} else if (strcmp(*argv, "-verify") == 0) {
verify = SSL_VERIFY_PEER;
if (--argc < 1)
goto bad;
verify_depth = strtonum(*(++argv), 0, INT_MAX, &errstr);
if (errstr)
goto bad;
BIO_printf(bio_err, "verify depth is %d\n", verify_depth);
} else if (strcmp(*argv, "-cert") == 0) {
if (--argc < 1)
goto bad;
cert_file = *(++argv);
} else if (strcmp(*argv, "-sess_out") == 0) {
if (--argc < 1)
goto bad;
sess_out = *(++argv);
} else if (strcmp(*argv, "-sess_in") == 0) {
if (--argc < 1)
goto bad;
sess_in = *(++argv);
} else if (strcmp(*argv, "-certform") == 0) {
if (--argc < 1)
goto bad;
cert_format = str2fmt(*(++argv));
} else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
if (badarg)
goto bad;
continue;
} else if (strcmp(*argv, "-verify_return_error") == 0)
verify_return_error = 1;
else if (strcmp(*argv, "-prexit") == 0)
prexit = 1;
else if (strcmp(*argv, "-crlf") == 0)
crlf = 1;
else if (strcmp(*argv, "-quiet") == 0) {
c_quiet = 1;
c_ign_eof = 1;
} else if (strcmp(*argv, "-ign_eof") == 0)
c_ign_eof = 1;
else if (strcmp(*argv, "-no_ign_eof") == 0)
c_ign_eof = 0;
else if (strcmp(*argv, "-pause") == 0)
c_Pause = 1;
else if (strcmp(*argv, "-debug") == 0)
c_debug = 1;
else if (strcmp(*argv, "-tlsextdebug") == 0)
c_tlsextdebug = 1;
else if (strcmp(*argv, "-status") == 0)
c_status_req = 1;
else if (strcmp(*argv, "-msg") == 0)
c_msg = 1;
else if (strcmp(*argv, "-showcerts") == 0)
c_showcerts = 1;
else if (strcmp(*argv, "-nbio_test") == 0)
nbio_test = 1;
else if (strcmp(*argv, "-state") == 0)
state = 1;
else if (strcmp(*argv, "-tls1_2") == 0)
meth = TLSv1_2_client_method();
else if (strcmp(*argv, "-tls1_1") == 0)
meth = TLSv1_1_client_method();
else if (strcmp(*argv, "-tls1") == 0)
meth = TLSv1_client_method();
#ifndef OPENSSL_NO_DTLS1
else if (strcmp(*argv, "-dtls1") == 0) {
meth = DTLSv1_client_method();
socket_type = SOCK_DGRAM;
} else if (strcmp(*argv, "-timeout") == 0)
enable_timeouts = 1;
else if (strcmp(*argv, "-mtu") == 0) {
if (--argc < 1)
goto bad;
socket_mtu = strtonum(*(++argv), 0, LONG_MAX, &errstr);
if (errstr)
goto bad;
}
#endif
else if (strcmp(*argv, "-bugs") == 0)
bugs = 1;
else if (strcmp(*argv, "-keyform") == 0) {
if (--argc < 1)
goto bad;
key_format = str2fmt(*(++argv));
} else if (strcmp(*argv, "-pass") == 0) {
if (--argc < 1)
goto bad;
passarg = *(++argv);
} else if (strcmp(*argv, "-key") == 0) {
if (--argc < 1)
goto bad;
key_file = *(++argv);
} else if (strcmp(*argv, "-reconnect") == 0) {
reconnect = 5;
} else if (strcmp(*argv, "-CApath") == 0) {
if (--argc < 1)
goto bad;
CApath = *(++argv);
} else if (strcmp(*argv, "-CAfile") == 0) {
if (--argc < 1)
goto bad;
CAfile = *(++argv);
} else if (strcmp(*argv, "-no_tls1_2") == 0)
off |= SSL_OP_NO_TLSv1_2;
else if (strcmp(*argv, "-no_tls1_1") == 0)
off |= SSL_OP_NO_TLSv1_1;
else if (strcmp(*argv, "-no_tls1") == 0)
off |= SSL_OP_NO_TLSv1;
else if (strcmp(*argv, "-no_ssl3") == 0)
off |= SSL_OP_NO_SSLv3;
else if (strcmp(*argv, "-no_ssl2") == 0)
off |= SSL_OP_NO_SSLv2;
else if (strcmp(*argv, "-no_comp") == 0) {
off |= SSL_OP_NO_COMPRESSION;
}
else if (strcmp(*argv, "-no_ticket") == 0) {
off |= SSL_OP_NO_TICKET;
}
else if (strcmp(*argv, "-nextprotoneg") == 0) {
if (--argc < 1)
goto bad;
next_proto_neg_in = *(++argv);
}
else if (strcmp(*argv, "-alpn") == 0) {
if (--argc < 1)
goto bad;
alpn_in = *(++argv);
} else if (strcmp(*argv, "-serverpref") == 0)
off |= SSL_OP_CIPHER_SERVER_PREFERENCE;
else if (strcmp(*argv, "-legacy_renegotiation") == 0)
; /* no-op */
else if (strcmp(*argv, "-legacy_server_connect") == 0) {
off |= SSL_OP_LEGACY_SERVER_CONNECT;
} else if (strcmp(*argv, "-no_legacy_server_connect") == 0) {
clr |= SSL_OP_LEGACY_SERVER_CONNECT;
} else if (strcmp(*argv, "-cipher") == 0) {
if (--argc < 1)
goto bad;
cipher = *(++argv);
}
else if (strcmp(*argv, "-nbio") == 0) {
c_nbio = 1;
}
else if (strcmp(*argv, "-starttls") == 0) {
if (--argc < 1)
goto bad;
++argv;
if (strcmp(*argv, "smtp") == 0)
starttls_proto = PROTO_SMTP;
else if (strcmp(*argv, "lmtp") == 0)
starttls_proto = PROTO_LMTP;
else if (strcmp(*argv, "pop3") == 0)
starttls_proto = PROTO_POP3;
else if (strcmp(*argv, "imap") == 0)
starttls_proto = PROTO_IMAP;
else if (strcmp(*argv, "ftp") == 0)
starttls_proto = PROTO_FTP;
else if (strcmp(*argv, "xmpp") == 0)
starttls_proto = PROTO_XMPP;
else
goto bad;
}
else if (strcmp(*argv, "-4") == 0) {
af = AF_INET;
} else if (strcmp(*argv, "-6") == 0) {
af = AF_INET6;
}
else if (strcmp(*argv, "-servername") == 0) {
if (--argc < 1)
goto bad;
servername = *(++argv);
/* meth=TLSv1_client_method(); */
}
#ifndef OPENSSL_NO_SRTP
else if (strcmp(*argv, "-use_srtp") == 0) {
if (--argc < 1)
goto bad;
srtp_profiles = *(++argv);
}
#endif
else if (strcmp(*argv, "-keymatexport") == 0) {
if (--argc < 1)
goto bad;
keymatexportlabel = *(++argv);
} else if (strcmp(*argv, "-keymatexportlen") == 0) {
if (--argc < 1)
goto bad;
keymatexportlen = strtonum(*(++argv), 1, INT_MAX, &errstr);
if (errstr)
goto bad;
} else {
BIO_printf(bio_err, "unknown option %s\n", *argv);
badop = 1;
break;
}
argc--;
argv++;
}
if (proxy != NULL) {
if (!extract_host_port(proxy, &host, NULL, &port))
goto bad;
if (connect == NULL)
connect = SSL_HOST_NAME;
} else if (connect != NULL) {
if (!extract_host_port(connect, &host, NULL, &port))
goto bad;
}
if (badop) {
bad:
if (errstr)
BIO_printf(bio_err, "invalid argument %s: %s\n",
*argv, errstr);
else
sc_usage();
goto end;
}
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;
if (!app_passwd(bio_err, 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(bio_err, key_file, key_format, 0, pass,
"client certificate private key file");
if (!key) {
ERR_print_errors(bio_err);
goto end;
}
}
if (cert_file) {
cert = load_cert(bio_err, cert_file, cert_format,
NULL, "client certificate file");
if (!cert) {
ERR_print_errors(bio_err);
goto end;
}
}
if (bio_c_out == NULL) {
if (c_quiet && !c_debug && !c_msg) {
bio_c_out = BIO_new(BIO_s_null());
} else {
if (bio_c_out == NULL)
bio_c_out = BIO_new_fp(stdout, BIO_NOCLOSE);
}
}
ctx = SSL_CTX_new(meth);
if (ctx == NULL) {
ERR_print_errors(bio_err);
goto end;
}
if (vpm)
SSL_CTX_set1_param(ctx, vpm);
#ifndef OPENSSL_NO_SRTP
if (srtp_profiles != NULL)
SSL_CTX_set_tlsext_use_srtp(ctx, srtp_profiles);
#endif
if (bugs)
SSL_CTX_set_options(ctx, SSL_OP_ALL | off);
else
SSL_CTX_set_options(ctx, off);
if (clr)
SSL_CTX_clear_options(ctx, clr);
/*
* DTLS: partial reads end up discarding unread UDP bytes :-( Setting
* read ahead solves this problem.
*/
if (socket_type == SOCK_DGRAM)
SSL_CTX_set_read_ahead(ctx, 1);
if (next_proto.data)
SSL_CTX_set_next_proto_select_cb(ctx, next_proto_cb, &next_proto);
if (alpn_in) {
unsigned short 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;
}
SSL_CTX_set_alpn_protos(ctx, alpn, alpn_len);
free(alpn);
}
if (state)
SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
if (cipher != NULL)
if (!SSL_CTX_set_cipher_list(ctx, cipher)) {
BIO_printf(bio_err, "error setting cipher list\n");
ERR_print_errors(bio_err);
goto end;
}
SSL_CTX_set_verify(ctx, verify, verify_callback);
if (!set_cert_key_stuff(ctx, cert, key))
goto end;
if ((!SSL_CTX_load_verify_locations(ctx, CAfile, CApath)) ||
(!SSL_CTX_set_default_verify_paths(ctx))) {
/*
* BIO_printf(bio_err,"error setting default verify
* locations\n");
*/
ERR_print_errors(bio_err);
/* 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);
}
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;
}
SSL_set_session(con, sess);
SSL_SESSION_free(sess);
}
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;
}
}
/* SSL_set_cipher_list(con,"RC4-MD5"); */
re_start:
if (init_client(&s, host, port, socket_type, af) == 0) {
BIO_printf(bio_err, "connect:errno=%d\n", errno);
goto end;
}
BIO_printf(bio_c_out, "CONNECTED(%08X)\n", s);
if (c_nbio) {
if (!c_quiet)
BIO_printf(bio_c_out, "turning on non blocking io\n");
if (!BIO_socket_nbio(s, 1)) {
ERR_print_errors(bio_err);
goto end;
}
}
if (c_Pause & 0x01)
SSL_set_debug(con, 1);
if (SSL_version(con) == DTLS1_VERSION) {
sbio = BIO_new_dgram(s, BIO_NOCLOSE);
if (getsockname(s, &peer, (void *) &peerlen) < 0) {
BIO_printf(bio_err, "getsockname:errno=%d\n",
errno);
shutdown(s, SHUT_RD);
close(s);
goto end;
}
(void) BIO_ctrl_set_connected(sbio, 1, &peer);
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 > 28) {
SSL_set_options(con, SSL_OP_NO_QUERY_MTU);
SSL_set_mtu(con, socket_mtu - 28);
} else
/* want to do MTU discovery */
BIO_ctrl(sbio, BIO_CTRL_DGRAM_MTU_DISCOVER, 0, NULL);
} else
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) {
SSL_set_debug(con, 1);
BIO_set_callback(sbio, bio_dump_callback);
BIO_set_callback_arg(sbio, (char *) bio_c_out);
}
if (c_msg) {
SSL_set_msg_callback(con, msg_cb);
SSL_set_msg_callback_arg(con, bio_c_out);
}
if (c_tlsextdebug) {
SSL_set_tlsext_debug_callback(con, tlsext_cb);
SSL_set_tlsext_debug_arg(con, bio_c_out);
}
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);
}
SSL_set_bio(con, sbio, sbio);
SSL_set_connect_state(con);
/* ok, lets connect */
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;
/* 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.
*/
if (starttls_proto == PROTO_SMTP || starttls_proto == PROTO_LMTP) {
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] == '-');
/* STARTTLS command requires EHLO... */
BIO_printf(fbio, "%cHLO openssl.client.net\r\n",
starttls_proto == PROTO_SMTP ? 'E' : 'L');
(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 found starttls in server response,"
" try anyway...\n");
BIO_printf(sbio, "STARTTLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
} else if (starttls_proto == PROTO_POP3) {
mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
if (mbuf_len == -1) {
BIO_printf(bio_err, "BIO_read failed\n");
goto end;
}
BIO_printf(sbio, "STLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
} else if (starttls_proto == 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 found STARTTLS in server response,"
" try anyway...\n");
BIO_printf(sbio, ". STARTTLS\r\n");
BIO_read(sbio, sbuf, BUFSIZZ);
} else if (starttls_proto == 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);
} else if (starttls_proto == PROTO_XMPP) {
int seen = 0;
BIO_printf(sbio, "<stream:stream "
"xmlns:stream='http://etherx.jabber.org/streams' "
"xmlns='jabber:client' to='%s' version='1.0'>", xmpphost ? xmpphost : host);
seen = BIO_read(sbio, mbuf, BUFSIZZ);
if (seen <= 0)
goto shut;
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;
} else if (proxy != NULL) {
BIO_printf(sbio, "CONNECT %s HTTP/1.0\r\n\r\n", connect);
mbuf_len = BIO_read(sbio, mbuf, BUFSIZZ);
if (mbuf_len == -1) {
BIO_printf(bio_err, "BIO_read failed\n");
goto end;
}
}
for (;;) {
struct pollfd pfd[3]; /* stdin, stdout, socket */
int ptimeout = -1;
if ((SSL_version(con) == DTLS1_VERSION) &&
DTLSv1_get_timeout(con, &timeout))
ptimeout = timeout.tv_sec * 1000 + timeout.tv_usec / 1000;
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);
}
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 */
starttls_proto = PROTO_OFF;
}
if (reconnect) {
reconnect--;
BIO_printf(bio_c_out, "drop connection and then reconnect\n");
SSL_shutdown(con);
SSL_set_connect_state(con);
shutdown(SSL_get_fd(con), SHUT_RD);
close(SSL_get_fd(con));
goto re_start;
}
}
}
ssl_pending = read_ssl && SSL_pending(con);
pfd[0].fd = -1;
pfd[1].fd = -1;
if (!ssl_pending) {
if (tty_on) {
if (read_tty) {
pfd[0].fd = fileno(stdin);
pfd[0].events = POLLIN;
}
if (write_tty) {
pfd[1].fd = fileno(stdout);
pfd[1].events = POLLOUT;
}
}
pfd[2].fd = SSL_get_fd(con);
pfd[2].events = 0;
if (read_ssl)
pfd[2].events |= POLLIN;
if (write_ssl)
pfd[2].events |= POLLOUT;
/* printf("mode tty(%d %d%d) ssl(%d%d)\n",
tty_on,read_tty,write_tty,read_ssl,write_ssl);*/
i = poll(pfd, 3, ptimeout);
if (i < 0) {
BIO_printf(bio_err, "bad select %d\n",
errno);
goto shut;
/* goto end; */
}
}
if ((SSL_version(con) == DTLS1_VERSION) && DTLSv1_handle_timeout(con) > 0) {
BIO_printf(bio_err, "TIMEOUT occured\n");
}
if (!ssl_pending && (pfd[2].revents & (POLLOUT|POLLERR|POLLNVAL))) {
if (pfd[2].revents & (POLLERR|POLLNVAL)) {
BIO_printf(bio_err, "poll error");
goto shut;
}
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_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",
errno);
goto shut;
} else {
read_tty = 1;
write_ssl = 0;
}
break;
case SSL_ERROR_SSL:
ERR_print_errors(bio_err);
goto shut;
}
} else if (!ssl_pending &&
(pfd[1].revents & (POLLOUT|POLLERR|POLLNVAL))) {
if (pfd[1].revents & (POLLERR|POLLNVAL)) {
BIO_printf(bio_err, "poll error");
goto shut;
}
i = write(fileno(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 || (pfd[2].revents & (POLLIN|POLLHUP))) {
#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_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 = errno;
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_SSL:
ERR_print_errors(bio_err);
goto shut;
/* break; */
}
} else if (pfd[0].revents) {
if (pfd[0].revents & (POLLERR|POLLNVAL)) {
BIO_printf(bio_err, "poll error");
goto shut;
}
if (crlf) {
int j, lf_num;
i = read(fileno(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 = read(fileno(stdin), cbuf, BUFSIZZ);
if ((!c_ign_eof) && ((i <= 0) || (cbuf[0] == 'Q'))) {
BIO_printf(bio_err, "DONE\n");
ret = 0;
goto shut;
}
if ((!c_ign_eof) && (cbuf[0] == 'R')) {
BIO_printf(bio_err, "RENEGOTIATING\n");
SSL_renegotiate(con);
cbuf_len = 0;
} else {
cbuf_len = i;
cbuf_off = 0;
}
write_ssl = 1;
read_tty = 0;
}
}
ret = 0;
shut:
if (in_init)
print_stuff(bio_c_out, con, full_log);
SSL_shutdown(con);
shutdown(SSL_get_fd(con), SHUT_RD);
close(SSL_get_fd(con));
end:
if (con != NULL) {
if (prexit != 0)
print_stuff(bio_c_out, con, 1);
SSL_free(con);
}
free(next_proto.data);
if (ctx != NULL)
SSL_CTX_free(ctx);
if (cert)
X509_free(cert);
if (key)
EVP_PKEY_free(key);
free(pass);
if (vpm)
X509_VERIFY_PARAM_free(vpm);
if (cbuf != NULL) {
explicit_bzero(cbuf, BUFSIZZ);
free(cbuf);
}
if (sbuf != NULL) {
explicit_bzero(sbuf, BUFSIZZ);
free(sbuf);
}
if (mbuf != NULL) {
explicit_bzero(mbuf, BUFSIZZ);
free(mbuf);
}
if (bio_c_out != NULL) {
BIO_free(bio_c_out);
bio_c_out = NULL;
}
return (ret);
}
static int conn_state(BIO *b, BIO_CONNECT *c)
{
int ret= -1,i;
unsigned long l;
char *p,*q;
int (*cb)()=NULL;
if (c->info_callback != NULL)
cb=c->info_callback;
for (;;)
{
switch (c->state)
{
case BIO_CONN_S_BEFORE:
p=c->param_hostname;
if (p == NULL)
{
BIOerr(BIO_F_CONN_STATE,BIO_R_NO_HOSTNAME_SPECIFIED);
goto exit_loop;
}
for ( ; *p != '\0'; p++)
{
if ((*p == ':') || (*p == '/')) break;
}
i= *p;
if ((i == ':') || (i == '/'))
{
*(p++)='\0';
if (i == ':')
{
for (q=p; *q; q++)
if (*q == '/')
{
*q='\0';
break;
}
if (c->param_port != NULL)
OPENSSL_free(c->param_port);
c->param_port=BUF_strdup(p);
}
}
if (c->param_port == NULL)
{
BIOerr(BIO_F_CONN_STATE,BIO_R_NO_PORT_SPECIFIED);
ERR_add_error_data(2,"host=",c->param_hostname);
goto exit_loop;
}
c->state=BIO_CONN_S_GET_IP;
break;
case BIO_CONN_S_GET_IP:
if (BIO_get_host_ip(c->param_hostname,&(c->ip[0])) <= 0)
goto exit_loop;
c->state=BIO_CONN_S_GET_PORT;
break;
case BIO_CONN_S_GET_PORT:
if (c->param_port == NULL)
{
/* abort(); */
goto exit_loop;
}
else if (BIO_get_port(c->param_port,&c->port) <= 0)
goto exit_loop;
c->state=BIO_CONN_S_CREATE_SOCKET;
break;
case BIO_CONN_S_CREATE_SOCKET:
/* now setup address */
memset((char *)&c->them,0,sizeof(c->them));
c->them.sin_family=AF_INET;
c->them.sin_port=htons((unsigned short)c->port);
l=(unsigned long)
((unsigned long)c->ip[0]<<24L)|
((unsigned long)c->ip[1]<<16L)|
((unsigned long)c->ip[2]<< 8L)|
((unsigned long)c->ip[3]);
c->them.sin_addr.s_addr=htonl(l);
c->state=BIO_CONN_S_CREATE_SOCKET;
ret=socket(AF_INET,SOCK_STREAM,SOCKET_PROTOCOL);
if (ret == INVALID_SOCKET)
{
SYSerr(SYS_F_SOCKET,get_last_socket_error());
ERR_add_error_data(4,"host=",c->param_hostname,
":",c->param_port);
BIOerr(BIO_F_CONN_STATE,BIO_R_UNABLE_TO_CREATE_SOCKET);
goto exit_loop;
}
b->num=ret;
c->state=BIO_CONN_S_NBIO;
break;
case BIO_CONN_S_NBIO:
if (c->nbio)
{
if (!BIO_socket_nbio(b->num,1))
{
BIOerr(BIO_F_CONN_STATE,BIO_R_ERROR_SETTING_NBIO);
ERR_add_error_data(4,"host=",
c->param_hostname,
":",c->param_port);
goto exit_loop;
}
}
c->state=BIO_CONN_S_CONNECT;
#if defined(SO_KEEPALIVE) && !defined(OPENSSL_SYS_MPE)
i=1;
i=setsockopt(b->num,SOL_SOCKET,SO_KEEPALIVE,(char *)&i,sizeof(i));
if (i < 0)
{
SYSerr(SYS_F_SOCKET,get_last_socket_error());
ERR_add_error_data(4,"host=",c->param_hostname,
":",c->param_port);
BIOerr(BIO_F_CONN_STATE,BIO_R_KEEPALIVE);
goto exit_loop;
}
#endif
break;
case BIO_CONN_S_CONNECT:
BIO_clear_retry_flags(b);
ret=connect(b->num,
(struct sockaddr *)&c->them,
sizeof(c->them));
b->retry_reason=0;
if (ret < 0)
{
if (BIO_sock_should_retry(ret))
{
BIO_set_retry_special(b);
c->state=BIO_CONN_S_BLOCKED_CONNECT;
b->retry_reason=BIO_RR_CONNECT;
}
else
{
SYSerr(SYS_F_CONNECT,get_last_socket_error());
ERR_add_error_data(4,"host=",
c->param_hostname,
":",c->param_port);
BIOerr(BIO_F_CONN_STATE,BIO_R_CONNECT_ERROR);
}
goto exit_loop;
}
else
c->state=BIO_CONN_S_OK;
break;
case BIO_CONN_S_BLOCKED_CONNECT:
i=BIO_sock_error(b->num);
if (i)
{
BIO_clear_retry_flags(b);
SYSerr(SYS_F_CONNECT,i);
ERR_add_error_data(4,"host=",
c->param_hostname,
":",c->param_port);
BIOerr(BIO_F_CONN_STATE,BIO_R_NBIO_CONNECT_ERROR);
ret=0;
goto exit_loop;
}
else
c->state=BIO_CONN_S_OK;
break;
case BIO_CONN_S_OK:
ret=1;
goto exit_loop;
default:
/* abort(); */
goto exit_loop;
}
if (cb != NULL)
{
if (!(ret=cb((BIO *)b,c->state,ret)))
goto end;
}
}
/* Loop does not exit */
exit_loop:
if (cb != NULL)
ret=cb((BIO *)b,c->state,ret);
end:
return(ret);
}
//--------------------------------------------------------------------------------------------------
le_result_t secSocket_Connect
(
secSocket_Ctx_t* ctxPtr, ///< [INOUT] Secure socket context pointer
char* hostPtr, ///< [IN] Host to connect on
uint16_t port, ///< [IN] Port to connect on
SocketType_t type, ///< [IN] Socket type (TCP, UDP)
int* fdPtr ///< [OUT] Socket file descriptor
)
{
SSL* sslPtr = NULL;
BIO* bioPtr = NULL;
char hostAndPort[HOST_ADDR_LEN + PORT_STR_LEN + 1];
le_result_t status = LE_FAULT;
unsigned long code;
if ((!ctxPtr) || (!hostPtr) || (!fdPtr))
{
LE_ERROR("Invalid argument: ctxPtr %p, hostPtr %p fdPtr %p", ctxPtr, hostPtr, fdPtr);
return LE_BAD_PARAMETER;
}
OpensslCtx_t* contextPtr = GetContext(ctxPtr);
if (!contextPtr)
{
return LE_BAD_PARAMETER;
}
// Start the connection
snprintf(hostAndPort, sizeof(hostAndPort), "%s:%d", hostPtr, port);
LE_INFO("Connecting to %d/%s:%d - %s...", type, hostPtr, port, hostAndPort);
// Clear the current thread's OpenSSL error queue
ERR_clear_error();
// Setting up the BIO abstraction layer
bioPtr = BIO_new_ssl_connect(contextPtr->sslCtxPtr);
if (!bioPtr)
{
LE_ERROR("Unable to allocate and connect BIO");
goto err;
}
BIO_get_ssl(bioPtr, &sslPtr);
if (!sslPtr)
{
LE_ERROR("Unable to locate SSL pointer");
goto err;
}
// Set the SSL_MODE_AUTO_RETRY flag: it will cause read/write operations to only return after
// the handshake and successful completion
SSL_set_mode(sslPtr, SSL_MODE_AUTO_RETRY);
BIO_set_conn_hostname(bioPtr, hostAndPort);
// Attempt to connect the supplied BIO and perform the handshake.
// This function returns 1 if the connection was successfully established and 0 or -1 if the
// connection failed.
if (BIO_do_connect(bioPtr) != 1)
{
LE_ERROR("Unable to connect BIO to %s", hostAndPort);
goto err;
}
// Get the FD linked to the BIO
BIO_get_fd(bioPtr, fdPtr);
BIO_socket_nbio(*fdPtr, 1);
contextPtr->bioPtr = bioPtr;
return LE_OK;
err:
code = ERR_peek_last_error();
if ((ERR_GET_LIB(code) == ERR_LIB_BIO) || (ERR_GET_LIB(code) == ERR_LIB_SSL))
{
switch (ERR_GET_REASON(code))
{
case ERR_R_MALLOC_FAILURE:
status = LE_NO_MEMORY;
break;
case BIO_R_NULL_PARAMETER:
status = LE_BAD_PARAMETER;
break;
#if defined(BIO_R_BAD_HOSTNAME_LOOKUP)
case BIO_R_BAD_HOSTNAME_LOOKUP:
status = LE_UNAVAILABLE;
break;
#endif
case BIO_R_CONNECT_ERROR:
status = LE_COMM_ERROR;
break;
#if defined(BIO_R_EOF_ON_MEMORY_BIO)
case BIO_R_EOF_ON_MEMORY_BIO:
status = LE_CLOSED;
break;
#endif
default:
status = LE_FAULT;
break;
}
}
return status;
}
