2016-05-18 02:18:30 +08:00
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/*
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2017-06-26 01:09:46 +08:00
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* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
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1998-12-21 18:52:47 +08:00
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*
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2016-05-18 02:18:30 +08:00
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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Big apps cleanup (option-parsing, etc)
This is merges the old "rsalz-monolith" branch over to master. The biggest
change is that option parsing switch from cascasding 'else if strcmp("-foo")'
to a utility routine and somethin akin to getopt. Also, an error in the
command line no longer prints the full summary; use -help (or --help :)
for that. There have been many other changes and code-cleanup, see
bullet list below.
Special thanks to Matt for the long and detailed code review.
TEMPORARY:
For now, comment out CRYPTO_mem_leaks() at end of main
Tickets closed:
RT3515: Use 3DES in pkcs12 if built with no-rc2
RT1766: s_client -reconnect and -starttls broke
RT2932: Catch write errors
RT2604: port should be 'unsigned short'
RT2983: total_bytes undeclared #ifdef RENEG
RT1523: Add -nocert to fix output in x509 app
RT3508: Remove unused variable introduced by b09eb24
RT3511: doc fix; req default serial is random
RT1325,2973: Add more extensions to c_rehash
RT2119,3407: Updated to dgst.pod
RT2379: Additional typo fix
RT2693: Extra include of string.h
RT2880: HFS is case-insensitive filenames
RT3246: req command prints version number wrong
Other changes; incompatibilities marked with *:
Add SCSV support
Add -misalign to speed command
Make dhparam, dsaparam, ecparam, x509 output C in proper style
Make some internal ocsp.c functions void
Only display cert usages with -help in verify
Use global bio_err, remove "BIO*err" parameter from functions
For filenames, - always means stdin (or stdout as appropriate)
Add aliases for -des/aes "wrap" ciphers.
*Remove support for IISSGC (server gated crypto)
*The undocumented OCSP -header flag is now "-header name=value"
*Documented the OCSP -header flag
Reviewed-by: Matt Caswell <matt@openssl.org>
2015-04-25 03:26:15 +08:00
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*/
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1998-12-21 18:52:47 +08:00
|
|
|
|
Big apps cleanup (option-parsing, etc)
This is merges the old "rsalz-monolith" branch over to master. The biggest
change is that option parsing switch from cascasding 'else if strcmp("-foo")'
to a utility routine and somethin akin to getopt. Also, an error in the
command line no longer prints the full summary; use -help (or --help :)
for that. There have been many other changes and code-cleanup, see
bullet list below.
Special thanks to Matt for the long and detailed code review.
TEMPORARY:
For now, comment out CRYPTO_mem_leaks() at end of main
Tickets closed:
RT3515: Use 3DES in pkcs12 if built with no-rc2
RT1766: s_client -reconnect and -starttls broke
RT2932: Catch write errors
RT2604: port should be 'unsigned short'
RT2983: total_bytes undeclared #ifdef RENEG
RT1523: Add -nocert to fix output in x509 app
RT3508: Remove unused variable introduced by b09eb24
RT3511: doc fix; req default serial is random
RT1325,2973: Add more extensions to c_rehash
RT2119,3407: Updated to dgst.pod
RT2379: Additional typo fix
RT2693: Extra include of string.h
RT2880: HFS is case-insensitive filenames
RT3246: req command prints version number wrong
Other changes; incompatibilities marked with *:
Add SCSV support
Add -misalign to speed command
Make dhparam, dsaparam, ecparam, x509 output C in proper style
Make some internal ocsp.c functions void
Only display cert usages with -help in verify
Use global bio_err, remove "BIO*err" parameter from functions
For filenames, - always means stdin (or stdout as appropriate)
Add aliases for -des/aes "wrap" ciphers.
*Remove support for IISSGC (server gated crypto)
*The undocumented OCSP -header flag is now "-header name=value"
*Documented the OCSP -header flag
Reviewed-by: Matt Caswell <matt@openssl.org>
2015-04-25 03:26:15 +08:00
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/* socket-related functions used by s_client and s_server */
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1999-07-29 07:25:59 +08:00
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <signal.h>
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2016-03-21 23:32:40 +08:00
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#include <openssl/opensslconf.h>
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1999-07-29 07:25:59 +08:00
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2015-01-22 11:40:55 +08:00
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/*
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* With IPv6, it looks like Digital has mixed up the proper order of
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* recursive header file inclusion, resulting in the compiler complaining
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* that u_int isn't defined, but only if _POSIX_C_SOURCE is defined, which is
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* needed to have fileno() declared correctly... So let's define u_int
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*/
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2001-02-20 16:13:47 +08:00
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#if defined(OPENSSL_SYS_VMS_DECC) && !defined(__U_INT)
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2015-01-22 11:40:55 +08:00
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# define __U_INT
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1999-05-13 19:37:32 +08:00
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typedef unsigned int u_int;
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#endif
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2002-11-28 16:04:36 +08:00
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#ifndef OPENSSL_NO_SOCK
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2016-02-03 07:47:42 +08:00
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# include "apps.h"
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# include "s_apps.h"
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2017-08-22 05:22:19 +08:00
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# include "internal/sockets.h"
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2005-06-13 11:23:50 +08:00
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2016-02-03 07:47:42 +08:00
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# include <openssl/bio.h>
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# include <openssl/err.h>
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2000-03-13 07:27:14 +08:00
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2016-02-03 07:47:42 +08:00
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/*
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* init_client - helper routine to set up socket communication
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* @sock: pointer to storage of resulting socket.
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* @host: the host name or path (for AF_UNIX) to connect to.
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* @port: the port to connect to (ignored for AF_UNIX).
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* @family: desired socket family, may be AF_INET, AF_INET6, AF_UNIX or
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* AF_UNSPEC
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* @type: socket type, must be SOCK_STREAM or SOCK_DGRAM
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2017-04-20 16:57:12 +08:00
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* @protocol: socket protocol, e.g. IPPROTO_TCP or IPPROTO_UDP (or 0 for any)
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2016-02-03 07:47:42 +08:00
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*
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* This will create a socket and use it to connect to a host:port, or if
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* family == AF_UNIX, to the path found in host.
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*
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* If the host has more than one address, it will try them one by one until
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* a successful connection is established. The resulting socket will be
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* found in *sock on success, it will be given INVALID_SOCKET otherwise.
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*
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* Returns 1 on success, 0 on failure.
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*/
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int init_client(int *sock, const char *host, const char *port,
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2017-04-20 16:57:12 +08:00
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int family, int type, int protocol)
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2015-01-22 11:40:55 +08:00
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{
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2016-02-03 07:47:42 +08:00
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BIO_ADDRINFO *res = NULL;
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const BIO_ADDRINFO *ai = NULL;
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int ret;
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2003-11-28 21:10:58 +08:00
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2017-06-26 01:09:46 +08:00
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if (BIO_sock_init() != 1)
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2016-02-03 07:47:42 +08:00
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return 0;
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2015-01-22 11:40:55 +08:00
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|
2017-04-20 16:57:12 +08:00
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ret = BIO_lookup_ex(host, port, BIO_LOOKUP_CLIENT, family, type, protocol,
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&res);
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2016-02-03 07:47:42 +08:00
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if (ret == 0) {
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ERR_print_errors(bio_err);
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return 0;
|
2015-01-22 11:40:55 +08:00
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}
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|
2016-02-03 07:47:42 +08:00
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ret = 0;
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for (ai = res; ai != NULL; ai = BIO_ADDRINFO_next(ai)) {
|
2016-02-24 23:59:14 +08:00
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|
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/* Admittedly, these checks are quite paranoid, we should not get
|
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* anything in the BIO_ADDRINFO chain that we haven't
|
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* asked for. */
|
2017-04-24 18:45:42 +08:00
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OPENSSL_assert((family == AF_UNSPEC
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|| family == BIO_ADDRINFO_family(ai))
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&& (type == 0 || type == BIO_ADDRINFO_socktype(ai))
|
2017-04-20 16:57:12 +08:00
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&& (protocol == 0
|
2017-04-24 18:45:42 +08:00
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|| protocol == BIO_ADDRINFO_protocol(ai)));
|
2016-02-03 07:47:42 +08:00
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*sock = BIO_socket(BIO_ADDRINFO_family(ai), BIO_ADDRINFO_socktype(ai),
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2017-04-24 18:45:42 +08:00
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BIO_ADDRINFO_protocol(ai), 0);
|
2016-02-03 07:47:42 +08:00
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if (*sock == INVALID_SOCKET) {
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/* Maybe the kernel doesn't support the socket family, even if
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* BIO_lookup() added it in the returned result...
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*/
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continue;
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}
|
2017-04-20 16:57:12 +08:00
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#ifndef OPENSSL_NO_SCTP
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if (protocol == IPPROTO_SCTP) {
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/*
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* For SCTP we have to set various options on the socket prior to
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* connecting. This is done automatically by BIO_new_dgram_sctp().
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* We don't actually need the created BIO though so we free it again
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* immediately.
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*/
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BIO *tmpbio = BIO_new_dgram_sctp(*sock, BIO_NOCLOSE);
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if (tmpbio == NULL) {
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ERR_print_errors(bio_err);
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return 0;
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}
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BIO_free(tmpbio);
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}
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#endif
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|
2016-02-03 07:47:42 +08:00
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if (!BIO_connect(*sock, BIO_ADDRINFO_address(ai), 0)) {
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BIO_closesocket(*sock);
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*sock = INVALID_SOCKET;
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continue;
|
2015-01-22 11:40:55 +08:00
|
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|
}
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|
2016-02-03 07:47:42 +08:00
|
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/* Success, don't try any more addresses */
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break;
|
2015-01-22 11:40:55 +08:00
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}
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|
2016-02-03 07:47:42 +08:00
|
|
|
if (*sock == INVALID_SOCKET) {
|
|
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|
ERR_print_errors(bio_err);
|
|
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|
} else {
|
2016-05-04 16:12:27 +08:00
|
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|
/* Remove any stale errors from previous connection attempts */
|
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|
ERR_clear_error();
|
2016-02-03 07:47:42 +08:00
|
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ret = 1;
|
2015-01-22 11:40:55 +08:00
|
|
|
}
|
2016-02-03 07:47:42 +08:00
|
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BIO_ADDRINFO_free(res);
|
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return ret;
|
2015-01-22 11:40:55 +08:00
|
|
|
}
|
s_client/s_server: support unix domain sockets
The "-unix <path>" argument allows s_server and s_client to use a unix
domain socket in the filesystem instead of IPv4 ("-connect", "-port",
"-accept", etc). If s_server exits gracefully, such as when "-naccept"
is used and the requested number of SSL/TLS connections have occurred,
then the domain socket file is removed. On ctrl-C, it is likely that
the stale socket file will be left over, such that s_server would
normally fail to restart with the same arguments. For this reason,
s_server also supports an "-unlink" option, which will clean up any
stale socket file before starting.
If you have any reason to want encrypted IPC within an O/S instance,
this concept might come in handy. Otherwise it just demonstrates that
there is nothing about SSL/TLS that limits it to TCP/IP in any way.
(There might also be benchmarking and profiling use in this path, as
unix domain sockets are much lower overhead than connecting over local
IP addresses).
Signed-off-by: Geoff Thorpe <geoff@openssl.org>
2014-04-26 13:22:54 +08:00
|
|
|
|
2016-02-03 07:47:42 +08:00
|
|
|
/*
|
|
|
|
* do_server - helper routine to perform a server operation
|
|
|
|
* @accept_sock: pointer to storage of resulting socket.
|
|
|
|
* @host: the host name or path (for AF_UNIX) to connect to.
|
|
|
|
* @port: the port to connect to (ignored for AF_UNIX).
|
|
|
|
* @family: desired socket family, may be AF_INET, AF_INET6, AF_UNIX or
|
|
|
|
* AF_UNSPEC
|
|
|
|
* @type: socket type, must be SOCK_STREAM or SOCK_DGRAM
|
|
|
|
* @cb: pointer to a function that receives the accepted socket and
|
|
|
|
* should perform the communication with the connecting client.
|
|
|
|
* @context: pointer to memory that's passed verbatim to the cb function.
|
|
|
|
* @naccept: number of times an incoming connect should be accepted. If -1,
|
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|
|
* unlimited number.
|
|
|
|
*
|
|
|
|
* This will create a socket and use it to listen to a host:port, or if
|
|
|
|
* family == AF_UNIX, to the path found in host, then start accepting
|
|
|
|
* incoming connections and run cb on the resulting socket.
|
|
|
|
*
|
|
|
|
* 0 on failure, something other on success.
|
|
|
|
*/
|
|
|
|
int do_server(int *accept_sock, const char *host, const char *port,
|
2017-04-20 16:56:56 +08:00
|
|
|
int family, int type, int protocol, do_server_cb cb,
|
2016-02-14 11:33:56 +08:00
|
|
|
unsigned char *context, int naccept)
|
2015-01-22 11:40:55 +08:00
|
|
|
{
|
2016-02-03 07:47:42 +08:00
|
|
|
int asock = 0;
|
2015-01-22 11:40:55 +08:00
|
|
|
int sock;
|
|
|
|
int i;
|
2016-02-03 07:47:42 +08:00
|
|
|
BIO_ADDRINFO *res = NULL;
|
|
|
|
int ret = 0;
|
|
|
|
|
2017-06-26 01:09:46 +08:00
|
|
|
if (BIO_sock_init() != 1)
|
2016-02-03 07:47:42 +08:00
|
|
|
return 0;
|
|
|
|
|
2017-04-20 16:56:56 +08:00
|
|
|
if (!BIO_lookup_ex(host, port, BIO_LOOKUP_SERVER, family, type, protocol,
|
|
|
|
&res)) {
|
2016-02-03 07:47:42 +08:00
|
|
|
ERR_print_errors(bio_err);
|
|
|
|
return 0;
|
|
|
|
}
|
2015-01-22 11:40:55 +08:00
|
|
|
|
2016-02-24 23:59:14 +08:00
|
|
|
/* Admittedly, these checks are quite paranoid, we should not get
|
|
|
|
* anything in the BIO_ADDRINFO chain that we haven't asked for */
|
2016-02-03 07:47:42 +08:00
|
|
|
OPENSSL_assert((family == AF_UNSPEC || family == BIO_ADDRINFO_family(res))
|
2017-04-20 16:56:56 +08:00
|
|
|
&& (type == 0 || type == BIO_ADDRINFO_socktype(res))
|
|
|
|
&& (protocol == 0 || protocol == BIO_ADDRINFO_protocol(res)));
|
2016-02-03 07:47:42 +08:00
|
|
|
|
|
|
|
asock = BIO_socket(BIO_ADDRINFO_family(res), BIO_ADDRINFO_socktype(res),
|
2016-02-11 05:36:02 +08:00
|
|
|
BIO_ADDRINFO_protocol(res), 0);
|
2016-02-03 07:47:42 +08:00
|
|
|
if (asock == INVALID_SOCKET
|
|
|
|
|| !BIO_listen(asock, BIO_ADDRINFO_address(res), BIO_SOCK_REUSEADDR)) {
|
|
|
|
BIO_ADDRINFO_free(res);
|
|
|
|
ERR_print_errors(bio_err);
|
|
|
|
if (asock != INVALID_SOCKET)
|
|
|
|
BIO_closesocket(asock);
|
|
|
|
goto end;
|
|
|
|
}
|
2015-01-22 11:40:55 +08:00
|
|
|
|
2017-04-20 16:56:56 +08:00
|
|
|
#ifndef OPENSSL_NO_SCTP
|
|
|
|
if (protocol == IPPROTO_SCTP) {
|
|
|
|
/*
|
|
|
|
* For SCTP we have to set various options on the socket prior to
|
|
|
|
* accepting. This is done automatically by BIO_new_dgram_sctp().
|
|
|
|
* We don't actually need the created BIO though so we free it again
|
|
|
|
* immediately.
|
|
|
|
*/
|
|
|
|
BIO *tmpbio = BIO_new_dgram_sctp(asock, BIO_NOCLOSE);
|
|
|
|
|
|
|
|
if (tmpbio == NULL) {
|
|
|
|
BIO_closesocket(asock);
|
|
|
|
ERR_print_errors(bio_err);
|
|
|
|
goto end;
|
|
|
|
}
|
|
|
|
BIO_free(tmpbio);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2016-02-03 07:47:42 +08:00
|
|
|
BIO_ADDRINFO_free(res);
|
2016-02-14 11:33:56 +08:00
|
|
|
res = NULL;
|
2016-02-03 07:47:42 +08:00
|
|
|
|
2016-02-14 11:33:56 +08:00
|
|
|
if (accept_sock != NULL)
|
2016-02-03 07:47:42 +08:00
|
|
|
*accept_sock = asock;
|
2015-01-22 11:40:55 +08:00
|
|
|
for (;;) {
|
|
|
|
if (type == SOCK_STREAM) {
|
2016-02-14 11:33:56 +08:00
|
|
|
do {
|
|
|
|
sock = BIO_accept_ex(asock, NULL, 0);
|
2017-07-17 17:51:19 +08:00
|
|
|
} while (sock < 0 && BIO_sock_should_retry(sock));
|
2016-02-03 07:47:42 +08:00
|
|
|
if (sock < 0) {
|
2016-02-14 11:33:56 +08:00
|
|
|
ERR_print_errors(bio_err);
|
2016-03-03 05:12:46 +08:00
|
|
|
BIO_closesocket(asock);
|
2016-02-14 11:33:56 +08:00
|
|
|
break;
|
2015-01-22 11:40:55 +08:00
|
|
|
}
|
2017-04-20 16:56:56 +08:00
|
|
|
i = (*cb)(sock, type, protocol, context);
|
2017-09-04 18:20:27 +08:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2018-01-15 01:17:59 +08:00
|
|
|
shutdown(sock, 1); /* SHUT_WR */
|
2016-03-03 05:12:46 +08:00
|
|
|
BIO_closesocket(sock);
|
2016-02-03 07:47:42 +08:00
|
|
|
} else {
|
2017-04-20 16:56:56 +08:00
|
|
|
i = (*cb)(asock, type, protocol, context);
|
2016-02-03 07:47:42 +08:00
|
|
|
}
|
|
|
|
|
2015-01-22 11:40:55 +08:00
|
|
|
if (naccept != -1)
|
|
|
|
naccept--;
|
|
|
|
if (i < 0 || naccept == 0) {
|
2016-03-03 05:12:46 +08:00
|
|
|
BIO_closesocket(asock);
|
2016-02-03 07:47:42 +08:00
|
|
|
ret = i;
|
|
|
|
break;
|
2015-01-22 11:40:55 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
end:
|
2016-02-03 07:47:42 +08:00
|
|
|
# ifdef AF_UNIX
|
|
|
|
if (family == AF_UNIX)
|
|
|
|
unlink(host);
|
2015-01-22 11:40:55 +08:00
|
|
|
# endif
|
2016-02-03 07:47:42 +08:00
|
|
|
return ret;
|
2015-01-22 11:40:55 +08:00
|
|
|
}
|
1998-12-21 18:52:47 +08:00
|
|
|
|
2016-02-03 07:47:42 +08:00
|
|
|
#endif /* OPENSSL_NO_SOCK */
|