-=-=-=-=-=-=-=-=-=-=-=-=-= -Begin work on Navigation Meshes (simple pathfinding for now, will improve soon) -More doc on theme overriding -Upgraded OpenSSL to version without bugs -Misc bugfixes
1872 lines
46 KiB
C
1872 lines
46 KiB
C
/* crypto/bio/bio_dgram.c */
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/*
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* DTLS implementation written by Nagendra Modadugu
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* (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <errno.h>
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#define USE_SOCKETS
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#include "cryptlib.h"
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#include <openssl/bio.h>
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#ifndef OPENSSL_NO_DGRAM
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#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS)
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#include <sys/timeb.h>
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#endif
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#ifndef OPENSSL_NO_SCTP
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#include <netinet/sctp.h>
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#include <fcntl.h>
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#define OPENSSL_SCTP_DATA_CHUNK_TYPE 0x00
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#define OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE 0xc0
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#endif
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#if defined(OPENSSL_SYS_LINUX) && !defined(IP_MTU)
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#define IP_MTU 14 /* linux is lame */
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#endif
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#if defined(__FreeBSD__) && defined(IN6_IS_ADDR_V4MAPPED)
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/* Standard definition causes type-punning problems. */
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#undef IN6_IS_ADDR_V4MAPPED
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#define s6_addr32 __u6_addr.__u6_addr32
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#define IN6_IS_ADDR_V4MAPPED(a) \
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(((a)->s6_addr32[0] == 0) && \
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((a)->s6_addr32[1] == 0) && \
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((a)->s6_addr32[2] == htonl(0x0000ffff)))
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#endif
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#ifdef WATT32
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#define sock_write SockWrite /* Watt-32 uses same names */
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#define sock_read SockRead
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#define sock_puts SockPuts
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#endif
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static int dgram_write(BIO *h, const char *buf, int num);
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static int dgram_read(BIO *h, char *buf, int size);
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static int dgram_puts(BIO *h, const char *str);
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static long dgram_ctrl(BIO *h, int cmd, long arg1, void *arg2);
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static int dgram_new(BIO *h);
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static int dgram_free(BIO *data);
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static int dgram_clear(BIO *bio);
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#ifndef OPENSSL_NO_SCTP
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static int dgram_sctp_write(BIO *h, const char *buf, int num);
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static int dgram_sctp_read(BIO *h, char *buf, int size);
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static int dgram_sctp_puts(BIO *h, const char *str);
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static long dgram_sctp_ctrl(BIO *h, int cmd, long arg1, void *arg2);
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static int dgram_sctp_new(BIO *h);
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static int dgram_sctp_free(BIO *data);
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#ifdef SCTP_AUTHENTICATION_EVENT
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static void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification *snp);
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#endif
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#endif
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static int BIO_dgram_should_retry(int s);
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static void get_current_time(struct timeval *t);
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static BIO_METHOD methods_dgramp=
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{
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BIO_TYPE_DGRAM,
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"datagram socket",
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dgram_write,
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dgram_read,
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dgram_puts,
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NULL, /* dgram_gets, */
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dgram_ctrl,
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dgram_new,
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dgram_free,
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NULL,
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};
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#ifndef OPENSSL_NO_SCTP
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static BIO_METHOD methods_dgramp_sctp=
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{
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BIO_TYPE_DGRAM_SCTP,
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"datagram sctp socket",
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dgram_sctp_write,
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dgram_sctp_read,
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dgram_sctp_puts,
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NULL, /* dgram_gets, */
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dgram_sctp_ctrl,
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dgram_sctp_new,
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dgram_sctp_free,
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NULL,
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};
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#endif
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typedef struct bio_dgram_data_st
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{
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union {
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struct sockaddr sa;
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struct sockaddr_in sa_in;
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#if OPENSSL_USE_IPV6
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struct sockaddr_in6 sa_in6;
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#endif
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} peer;
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unsigned int connected;
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unsigned int _errno;
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unsigned int mtu;
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struct timeval next_timeout;
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struct timeval socket_timeout;
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} bio_dgram_data;
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#ifndef OPENSSL_NO_SCTP
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typedef struct bio_dgram_sctp_save_message_st
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{
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BIO *bio;
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char *data;
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int length;
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} bio_dgram_sctp_save_message;
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typedef struct bio_dgram_sctp_data_st
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{
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union {
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struct sockaddr sa;
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struct sockaddr_in sa_in;
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#if OPENSSL_USE_IPV6
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struct sockaddr_in6 sa_in6;
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#endif
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} peer;
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unsigned int connected;
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unsigned int _errno;
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unsigned int mtu;
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struct bio_dgram_sctp_sndinfo sndinfo;
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struct bio_dgram_sctp_rcvinfo rcvinfo;
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struct bio_dgram_sctp_prinfo prinfo;
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void (*handle_notifications)(BIO *bio, void *context, void *buf);
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void* notification_context;
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int in_handshake;
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int ccs_rcvd;
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int ccs_sent;
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int save_shutdown;
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int peer_auth_tested;
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bio_dgram_sctp_save_message saved_message;
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} bio_dgram_sctp_data;
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#endif
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BIO_METHOD *BIO_s_datagram(void)
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{
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return(&methods_dgramp);
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}
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BIO *BIO_new_dgram(int fd, int close_flag)
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{
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BIO *ret;
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ret=BIO_new(BIO_s_datagram());
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if (ret == NULL) return(NULL);
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BIO_set_fd(ret,fd,close_flag);
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return(ret);
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}
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static int dgram_new(BIO *bi)
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{
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bio_dgram_data *data = NULL;
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bi->init=0;
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bi->num=0;
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data = OPENSSL_malloc(sizeof(bio_dgram_data));
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if (data == NULL)
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return 0;
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memset(data, 0x00, sizeof(bio_dgram_data));
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bi->ptr = data;
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bi->flags=0;
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return(1);
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}
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static int dgram_free(BIO *a)
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{
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bio_dgram_data *data;
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if (a == NULL) return(0);
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if ( ! dgram_clear(a))
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return 0;
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data = (bio_dgram_data *)a->ptr;
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if(data != NULL) OPENSSL_free(data);
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return(1);
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}
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static int dgram_clear(BIO *a)
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{
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if (a == NULL) return(0);
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if (a->shutdown)
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{
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if (a->init)
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{
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SHUTDOWN2(a->num);
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}
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a->init=0;
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a->flags=0;
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}
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return(1);
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}
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static void dgram_adjust_rcv_timeout(BIO *b)
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{
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#if defined(SO_RCVTIMEO)
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bio_dgram_data *data = (bio_dgram_data *)b->ptr;
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union { size_t s; int i; } sz = {0};
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/* Is a timer active? */
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if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
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{
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struct timeval timenow, timeleft;
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/* Read current socket timeout */
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#ifdef OPENSSL_SYS_WINDOWS
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int timeout;
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sz.i = sizeof(timeout);
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if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
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(void*)&timeout, &sz.i) < 0)
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{ perror("getsockopt"); }
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else
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{
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data->socket_timeout.tv_sec = timeout / 1000;
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data->socket_timeout.tv_usec = (timeout % 1000) * 1000;
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}
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#else
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sz.i = sizeof(data->socket_timeout);
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if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
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&(data->socket_timeout), (void *)&sz) < 0)
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{ perror("getsockopt"); }
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else if (sizeof(sz.s)!=sizeof(sz.i) && sz.i==0)
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OPENSSL_assert(sz.s<=sizeof(data->socket_timeout));
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#endif
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/* Get current time */
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get_current_time(&timenow);
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/* Calculate time left until timer expires */
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memcpy(&timeleft, &(data->next_timeout), sizeof(struct timeval));
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timeleft.tv_sec -= timenow.tv_sec;
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timeleft.tv_usec -= timenow.tv_usec;
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if (timeleft.tv_usec < 0)
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{
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timeleft.tv_sec--;
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timeleft.tv_usec += 1000000;
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}
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if (timeleft.tv_sec < 0)
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{
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timeleft.tv_sec = 0;
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timeleft.tv_usec = 1;
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}
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/* Adjust socket timeout if next handhake message timer
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* will expire earlier.
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*/
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if ((data->socket_timeout.tv_sec == 0 && data->socket_timeout.tv_usec == 0) ||
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(data->socket_timeout.tv_sec > timeleft.tv_sec) ||
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(data->socket_timeout.tv_sec == timeleft.tv_sec &&
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data->socket_timeout.tv_usec >= timeleft.tv_usec))
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{
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#ifdef OPENSSL_SYS_WINDOWS
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timeout = timeleft.tv_sec * 1000 + timeleft.tv_usec / 1000;
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if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
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(void*)&timeout, sizeof(timeout)) < 0)
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{ perror("setsockopt"); }
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#else
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if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &timeleft,
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sizeof(struct timeval)) < 0)
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{ perror("setsockopt"); }
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#endif
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}
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}
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#endif
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}
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static void dgram_reset_rcv_timeout(BIO *b)
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{
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#if defined(SO_RCVTIMEO)
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bio_dgram_data *data = (bio_dgram_data *)b->ptr;
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/* Is a timer active? */
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if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0)
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{
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#ifdef OPENSSL_SYS_WINDOWS
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int timeout = data->socket_timeout.tv_sec * 1000 +
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data->socket_timeout.tv_usec / 1000;
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if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
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(void*)&timeout, sizeof(timeout)) < 0)
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{ perror("setsockopt"); }
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#else
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if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &(data->socket_timeout),
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sizeof(struct timeval)) < 0)
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{ perror("setsockopt"); }
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#endif
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}
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#endif
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}
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static int dgram_read(BIO *b, char *out, int outl)
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{
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int ret=0;
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bio_dgram_data *data = (bio_dgram_data *)b->ptr;
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struct {
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/*
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* See commentary in b_sock.c. <appro>
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*/
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union { size_t s; int i; } len;
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union {
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struct sockaddr sa;
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struct sockaddr_in sa_in;
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#if OPENSSL_USE_IPV6
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struct sockaddr_in6 sa_in6;
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#endif
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} peer;
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} sa;
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sa.len.s=0;
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sa.len.i=sizeof(sa.peer);
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if (out != NULL)
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{
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clear_socket_error();
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memset(&sa.peer, 0x00, sizeof(sa.peer));
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dgram_adjust_rcv_timeout(b);
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ret=recvfrom(b->num,out,outl,0,&sa.peer.sa,(void *)&sa.len);
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if (sizeof(sa.len.i)!=sizeof(sa.len.s) && sa.len.i==0)
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{
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OPENSSL_assert(sa.len.s<=sizeof(sa.peer));
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sa.len.i = (int)sa.len.s;
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}
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if ( ! data->connected && ret >= 0)
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BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, &sa.peer);
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BIO_clear_retry_flags(b);
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if (ret < 0)
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{
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if (BIO_dgram_should_retry(ret))
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{
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BIO_set_retry_read(b);
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data->_errno = get_last_socket_error();
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}
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}
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dgram_reset_rcv_timeout(b);
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}
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return(ret);
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}
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static int dgram_write(BIO *b, const char *in, int inl)
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{
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int ret;
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bio_dgram_data *data = (bio_dgram_data *)b->ptr;
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clear_socket_error();
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if ( data->connected )
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ret=writesocket(b->num,in,inl);
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else
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{
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int peerlen = sizeof(data->peer);
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if (data->peer.sa.sa_family == AF_INET)
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peerlen = sizeof(data->peer.sa_in);
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#if OPENSSL_USE_IPV6
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else if (data->peer.sa.sa_family == AF_INET6)
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peerlen = sizeof(data->peer.sa_in6);
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#endif
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#if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK)
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ret=sendto(b->num, (char *)in, inl, 0, &data->peer.sa, peerlen);
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#else
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ret=sendto(b->num, in, inl, 0, &data->peer.sa, peerlen);
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#endif
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}
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BIO_clear_retry_flags(b);
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if (ret <= 0)
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{
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if (BIO_dgram_should_retry(ret))
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{
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BIO_set_retry_write(b);
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data->_errno = get_last_socket_error();
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#if 0 /* higher layers are responsible for querying MTU, if necessary */
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if ( data->_errno == EMSGSIZE)
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/* retrieve the new MTU */
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BIO_ctrl(b, BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL);
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#endif
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}
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}
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return(ret);
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}
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static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr)
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{
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long ret=1;
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int *ip;
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struct sockaddr *to = NULL;
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bio_dgram_data *data = NULL;
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#if defined(OPENSSL_SYS_LINUX) && (defined(IP_MTU_DISCOVER) || defined(IP_MTU))
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int sockopt_val = 0;
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socklen_t sockopt_len; /* assume that system supporting IP_MTU is
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|
* modern enough to define socklen_t */
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socklen_t addr_len;
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union {
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struct sockaddr sa;
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struct sockaddr_in s4;
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#if OPENSSL_USE_IPV6
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struct sockaddr_in6 s6;
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#endif
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} addr;
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#endif
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data = (bio_dgram_data *)b->ptr;
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switch (cmd)
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{
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case BIO_CTRL_RESET:
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num=0;
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case BIO_C_FILE_SEEK:
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ret=0;
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break;
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case BIO_C_FILE_TELL:
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case BIO_CTRL_INFO:
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ret=0;
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break;
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case BIO_C_SET_FD:
|
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dgram_clear(b);
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b->num= *((int *)ptr);
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b->shutdown=(int)num;
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b->init=1;
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break;
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case BIO_C_GET_FD:
|
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if (b->init)
|
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{
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ip=(int *)ptr;
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if (ip != NULL) *ip=b->num;
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ret=b->num;
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}
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else
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ret= -1;
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break;
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case BIO_CTRL_GET_CLOSE:
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|
ret=b->shutdown;
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break;
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case BIO_CTRL_SET_CLOSE:
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|
b->shutdown=(int)num;
|
|
break;
|
|
case BIO_CTRL_PENDING:
|
|
case BIO_CTRL_WPENDING:
|
|
ret=0;
|
|
break;
|
|
case BIO_CTRL_DUP:
|
|
case BIO_CTRL_FLUSH:
|
|
ret=1;
|
|
break;
|
|
case BIO_CTRL_DGRAM_CONNECT:
|
|
to = (struct sockaddr *)ptr;
|
|
#if 0
|
|
if (connect(b->num, to, sizeof(struct sockaddr)) < 0)
|
|
{ perror("connect"); ret = 0; }
|
|
else
|
|
{
|
|
#endif
|
|
switch (to->sa_family)
|
|
{
|
|
case AF_INET:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa_in));
|
|
break;
|
|
#if OPENSSL_USE_IPV6
|
|
case AF_INET6:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa_in6));
|
|
break;
|
|
#endif
|
|
default:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa));
|
|
break;
|
|
}
|
|
#if 0
|
|
}
|
|
#endif
|
|
break;
|
|
/* (Linux)kernel sets DF bit on outgoing IP packets */
|
|
case BIO_CTRL_DGRAM_MTU_DISCOVER:
|
|
#if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU_DISCOVER) && defined(IP_PMTUDISC_DO)
|
|
addr_len = (socklen_t)sizeof(addr);
|
|
memset((void *)&addr, 0, sizeof(addr));
|
|
if (getsockname(b->num, &addr.sa, &addr_len) < 0)
|
|
{
|
|
ret = 0;
|
|
break;
|
|
}
|
|
switch (addr.sa.sa_family)
|
|
{
|
|
case AF_INET:
|
|
sockopt_val = IP_PMTUDISC_DO;
|
|
if ((ret = setsockopt(b->num, IPPROTO_IP, IP_MTU_DISCOVER,
|
|
&sockopt_val, sizeof(sockopt_val))) < 0)
|
|
perror("setsockopt");
|
|
break;
|
|
#if OPENSSL_USE_IPV6 && defined(IPV6_MTU_DISCOVER) && defined(IPV6_PMTUDISC_DO)
|
|
case AF_INET6:
|
|
sockopt_val = IPV6_PMTUDISC_DO;
|
|
if ((ret = setsockopt(b->num, IPPROTO_IPV6, IPV6_MTU_DISCOVER,
|
|
&sockopt_val, sizeof(sockopt_val))) < 0)
|
|
perror("setsockopt");
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = -1;
|
|
break;
|
|
}
|
|
ret = -1;
|
|
#else
|
|
break;
|
|
#endif
|
|
case BIO_CTRL_DGRAM_QUERY_MTU:
|
|
#if defined(OPENSSL_SYS_LINUX) && defined(IP_MTU)
|
|
addr_len = (socklen_t)sizeof(addr);
|
|
memset((void *)&addr, 0, sizeof(addr));
|
|
if (getsockname(b->num, &addr.sa, &addr_len) < 0)
|
|
{
|
|
ret = 0;
|
|
break;
|
|
}
|
|
sockopt_len = sizeof(sockopt_val);
|
|
switch (addr.sa.sa_family)
|
|
{
|
|
case AF_INET:
|
|
if ((ret = getsockopt(b->num, IPPROTO_IP, IP_MTU, (void *)&sockopt_val,
|
|
&sockopt_len)) < 0 || sockopt_val < 0)
|
|
{
|
|
ret = 0;
|
|
}
|
|
else
|
|
{
|
|
/* we assume that the transport protocol is UDP and no
|
|
* IP options are used.
|
|
*/
|
|
data->mtu = sockopt_val - 8 - 20;
|
|
ret = data->mtu;
|
|
}
|
|
break;
|
|
#if OPENSSL_USE_IPV6 && defined(IPV6_MTU)
|
|
case AF_INET6:
|
|
if ((ret = getsockopt(b->num, IPPROTO_IPV6, IPV6_MTU, (void *)&sockopt_val,
|
|
&sockopt_len)) < 0 || sockopt_val < 0)
|
|
{
|
|
ret = 0;
|
|
}
|
|
else
|
|
{
|
|
/* we assume that the transport protocol is UDP and no
|
|
* IPV6 options are used.
|
|
*/
|
|
data->mtu = sockopt_val - 8 - 40;
|
|
ret = data->mtu;
|
|
}
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = 0;
|
|
break;
|
|
}
|
|
#else
|
|
ret = 0;
|
|
#endif
|
|
break;
|
|
case BIO_CTRL_DGRAM_GET_FALLBACK_MTU:
|
|
switch (data->peer.sa.sa_family)
|
|
{
|
|
case AF_INET:
|
|
ret = 576 - 20 - 8;
|
|
break;
|
|
#if OPENSSL_USE_IPV6
|
|
case AF_INET6:
|
|
#ifdef IN6_IS_ADDR_V4MAPPED
|
|
if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr))
|
|
ret = 576 - 20 - 8;
|
|
else
|
|
#endif
|
|
ret = 1280 - 40 - 8;
|
|
break;
|
|
#endif
|
|
default:
|
|
ret = 576 - 20 - 8;
|
|
break;
|
|
}
|
|
break;
|
|
case BIO_CTRL_DGRAM_GET_MTU:
|
|
return data->mtu;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_MTU:
|
|
data->mtu = num;
|
|
ret = num;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_CONNECTED:
|
|
to = (struct sockaddr *)ptr;
|
|
|
|
if ( to != NULL)
|
|
{
|
|
data->connected = 1;
|
|
switch (to->sa_family)
|
|
{
|
|
case AF_INET:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa_in));
|
|
break;
|
|
#if OPENSSL_USE_IPV6
|
|
case AF_INET6:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa_in6));
|
|
break;
|
|
#endif
|
|
default:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa));
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
data->connected = 0;
|
|
memset(&(data->peer), 0x00, sizeof(data->peer));
|
|
}
|
|
break;
|
|
case BIO_CTRL_DGRAM_GET_PEER:
|
|
switch (data->peer.sa.sa_family)
|
|
{
|
|
case AF_INET:
|
|
ret=sizeof(data->peer.sa_in);
|
|
break;
|
|
#if OPENSSL_USE_IPV6
|
|
case AF_INET6:
|
|
ret=sizeof(data->peer.sa_in6);
|
|
break;
|
|
#endif
|
|
default:
|
|
ret=sizeof(data->peer.sa);
|
|
break;
|
|
}
|
|
if (num==0 || num>ret)
|
|
num=ret;
|
|
memcpy(ptr,&data->peer,(ret=num));
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_PEER:
|
|
to = (struct sockaddr *) ptr;
|
|
switch (to->sa_family)
|
|
{
|
|
case AF_INET:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa_in));
|
|
break;
|
|
#if OPENSSL_USE_IPV6
|
|
case AF_INET6:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa_in6));
|
|
break;
|
|
#endif
|
|
default:
|
|
memcpy(&data->peer,to,sizeof(data->peer.sa));
|
|
break;
|
|
}
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT:
|
|
memcpy(&(data->next_timeout), ptr, sizeof(struct timeval));
|
|
break;
|
|
#if defined(SO_RCVTIMEO)
|
|
case BIO_CTRL_DGRAM_SET_RECV_TIMEOUT:
|
|
#ifdef OPENSSL_SYS_WINDOWS
|
|
{
|
|
struct timeval *tv = (struct timeval *)ptr;
|
|
int timeout = tv->tv_sec * 1000 + tv->tv_usec/1000;
|
|
if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
|
|
(void*)&timeout, sizeof(timeout)) < 0)
|
|
{ perror("setsockopt"); ret = -1; }
|
|
}
|
|
#else
|
|
if ( setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, ptr,
|
|
sizeof(struct timeval)) < 0)
|
|
{ perror("setsockopt"); ret = -1; }
|
|
#endif
|
|
break;
|
|
case BIO_CTRL_DGRAM_GET_RECV_TIMEOUT:
|
|
{
|
|
union { size_t s; int i; } sz = {0};
|
|
#ifdef OPENSSL_SYS_WINDOWS
|
|
int timeout;
|
|
struct timeval *tv = (struct timeval *)ptr;
|
|
|
|
sz.i = sizeof(timeout);
|
|
if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
|
|
(void*)&timeout, &sz.i) < 0)
|
|
{ perror("getsockopt"); ret = -1; }
|
|
else
|
|
{
|
|
tv->tv_sec = timeout / 1000;
|
|
tv->tv_usec = (timeout % 1000) * 1000;
|
|
ret = sizeof(*tv);
|
|
}
|
|
#else
|
|
sz.i = sizeof(struct timeval);
|
|
if ( getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO,
|
|
ptr, (void *)&sz) < 0)
|
|
{ perror("getsockopt"); ret = -1; }
|
|
else if (sizeof(sz.s)!=sizeof(sz.i) && sz.i==0)
|
|
{
|
|
OPENSSL_assert(sz.s<=sizeof(struct timeval));
|
|
ret = (int)sz.s;
|
|
}
|
|
else
|
|
ret = sz.i;
|
|
#endif
|
|
}
|
|
break;
|
|
#endif
|
|
#if defined(SO_SNDTIMEO)
|
|
case BIO_CTRL_DGRAM_SET_SEND_TIMEOUT:
|
|
#ifdef OPENSSL_SYS_WINDOWS
|
|
{
|
|
struct timeval *tv = (struct timeval *)ptr;
|
|
int timeout = tv->tv_sec * 1000 + tv->tv_usec/1000;
|
|
if (setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
|
|
(void*)&timeout, sizeof(timeout)) < 0)
|
|
{ perror("setsockopt"); ret = -1; }
|
|
}
|
|
#else
|
|
if ( setsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO, ptr,
|
|
sizeof(struct timeval)) < 0)
|
|
{ perror("setsockopt"); ret = -1; }
|
|
#endif
|
|
break;
|
|
case BIO_CTRL_DGRAM_GET_SEND_TIMEOUT:
|
|
{
|
|
union { size_t s; int i; } sz = {0};
|
|
#ifdef OPENSSL_SYS_WINDOWS
|
|
int timeout;
|
|
struct timeval *tv = (struct timeval *)ptr;
|
|
|
|
sz.i = sizeof(timeout);
|
|
if (getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
|
|
(void*)&timeout, &sz.i) < 0)
|
|
{ perror("getsockopt"); ret = -1; }
|
|
else
|
|
{
|
|
tv->tv_sec = timeout / 1000;
|
|
tv->tv_usec = (timeout % 1000) * 1000;
|
|
ret = sizeof(*tv);
|
|
}
|
|
#else
|
|
sz.i = sizeof(struct timeval);
|
|
if ( getsockopt(b->num, SOL_SOCKET, SO_SNDTIMEO,
|
|
ptr, (void *)&sz) < 0)
|
|
{ perror("getsockopt"); ret = -1; }
|
|
else if (sizeof(sz.s)!=sizeof(sz.i) && sz.i==0)
|
|
{
|
|
OPENSSL_assert(sz.s<=sizeof(struct timeval));
|
|
ret = (int)sz.s;
|
|
}
|
|
else
|
|
ret = sz.i;
|
|
#endif
|
|
}
|
|
break;
|
|
#endif
|
|
case BIO_CTRL_DGRAM_GET_SEND_TIMER_EXP:
|
|
/* fall-through */
|
|
case BIO_CTRL_DGRAM_GET_RECV_TIMER_EXP:
|
|
#ifdef OPENSSL_SYS_WINDOWS
|
|
if ( data->_errno == WSAETIMEDOUT)
|
|
#else
|
|
if ( data->_errno == EAGAIN)
|
|
#endif
|
|
{
|
|
ret = 1;
|
|
data->_errno = 0;
|
|
}
|
|
else
|
|
ret = 0;
|
|
break;
|
|
#ifdef EMSGSIZE
|
|
case BIO_CTRL_DGRAM_MTU_EXCEEDED:
|
|
if ( data->_errno == EMSGSIZE)
|
|
{
|
|
ret = 1;
|
|
data->_errno = 0;
|
|
}
|
|
else
|
|
ret = 0;
|
|
break;
|
|
#endif
|
|
default:
|
|
ret=0;
|
|
break;
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
static int dgram_puts(BIO *bp, const char *str)
|
|
{
|
|
int n,ret;
|
|
|
|
n=strlen(str);
|
|
ret=dgram_write(bp,str,n);
|
|
return(ret);
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_SCTP
|
|
BIO_METHOD *BIO_s_datagram_sctp(void)
|
|
{
|
|
return(&methods_dgramp_sctp);
|
|
}
|
|
|
|
BIO *BIO_new_dgram_sctp(int fd, int close_flag)
|
|
{
|
|
BIO *bio;
|
|
int ret, optval = 20000;
|
|
int auth_data = 0, auth_forward = 0;
|
|
unsigned char *p;
|
|
struct sctp_authchunk auth;
|
|
struct sctp_authchunks *authchunks;
|
|
socklen_t sockopt_len;
|
|
#ifdef SCTP_AUTHENTICATION_EVENT
|
|
#ifdef SCTP_EVENT
|
|
struct sctp_event event;
|
|
#else
|
|
struct sctp_event_subscribe event;
|
|
#endif
|
|
#endif
|
|
|
|
bio=BIO_new(BIO_s_datagram_sctp());
|
|
if (bio == NULL) return(NULL);
|
|
BIO_set_fd(bio,fd,close_flag);
|
|
|
|
/* Activate SCTP-AUTH for DATA and FORWARD-TSN chunks */
|
|
auth.sauth_chunk = OPENSSL_SCTP_DATA_CHUNK_TYPE;
|
|
ret = setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, sizeof(struct sctp_authchunk));
|
|
OPENSSL_assert(ret >= 0);
|
|
auth.sauth_chunk = OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE;
|
|
ret = setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, sizeof(struct sctp_authchunk));
|
|
OPENSSL_assert(ret >= 0);
|
|
|
|
/* Test if activation was successful. When using accept(),
|
|
* SCTP-AUTH has to be activated for the listening socket
|
|
* already, otherwise the connected socket won't use it. */
|
|
sockopt_len = (socklen_t)(sizeof(sctp_assoc_t) + 256 * sizeof(uint8_t));
|
|
authchunks = OPENSSL_malloc(sockopt_len);
|
|
memset(authchunks, 0, sizeof(sockopt_len));
|
|
ret = getsockopt(fd, IPPROTO_SCTP, SCTP_LOCAL_AUTH_CHUNKS, authchunks, &sockopt_len);
|
|
OPENSSL_assert(ret >= 0);
|
|
|
|
for (p = (unsigned char*) authchunks->gauth_chunks;
|
|
p < (unsigned char*) authchunks + sockopt_len;
|
|
p += sizeof(uint8_t))
|
|
{
|
|
if (*p == OPENSSL_SCTP_DATA_CHUNK_TYPE) auth_data = 1;
|
|
if (*p == OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE) auth_forward = 1;
|
|
}
|
|
|
|
OPENSSL_free(authchunks);
|
|
|
|
OPENSSL_assert(auth_data);
|
|
OPENSSL_assert(auth_forward);
|
|
|
|
#ifdef SCTP_AUTHENTICATION_EVENT
|
|
#ifdef SCTP_EVENT
|
|
memset(&event, 0, sizeof(struct sctp_event));
|
|
event.se_assoc_id = 0;
|
|
event.se_type = SCTP_AUTHENTICATION_EVENT;
|
|
event.se_on = 1;
|
|
ret = setsockopt(fd, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(struct sctp_event));
|
|
OPENSSL_assert(ret >= 0);
|
|
#else
|
|
sockopt_len = (socklen_t) sizeof(struct sctp_event_subscribe);
|
|
ret = getsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, &sockopt_len);
|
|
OPENSSL_assert(ret >= 0);
|
|
|
|
event.sctp_authentication_event = 1;
|
|
|
|
ret = setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(struct sctp_event_subscribe));
|
|
OPENSSL_assert(ret >= 0);
|
|
#endif
|
|
#endif
|
|
|
|
/* Disable partial delivery by setting the min size
|
|
* larger than the max record size of 2^14 + 2048 + 13
|
|
*/
|
|
ret = setsockopt(fd, IPPROTO_SCTP, SCTP_PARTIAL_DELIVERY_POINT, &optval, sizeof(optval));
|
|
OPENSSL_assert(ret >= 0);
|
|
|
|
return(bio);
|
|
}
|
|
|
|
int BIO_dgram_is_sctp(BIO *bio)
|
|
{
|
|
return (BIO_method_type(bio) == BIO_TYPE_DGRAM_SCTP);
|
|
}
|
|
|
|
static int dgram_sctp_new(BIO *bi)
|
|
{
|
|
bio_dgram_sctp_data *data = NULL;
|
|
|
|
bi->init=0;
|
|
bi->num=0;
|
|
data = OPENSSL_malloc(sizeof(bio_dgram_sctp_data));
|
|
if (data == NULL)
|
|
return 0;
|
|
memset(data, 0x00, sizeof(bio_dgram_sctp_data));
|
|
#ifdef SCTP_PR_SCTP_NONE
|
|
data->prinfo.pr_policy = SCTP_PR_SCTP_NONE;
|
|
#endif
|
|
bi->ptr = data;
|
|
|
|
bi->flags=0;
|
|
return(1);
|
|
}
|
|
|
|
static int dgram_sctp_free(BIO *a)
|
|
{
|
|
bio_dgram_sctp_data *data;
|
|
|
|
if (a == NULL) return(0);
|
|
if ( ! dgram_clear(a))
|
|
return 0;
|
|
|
|
data = (bio_dgram_sctp_data *)a->ptr;
|
|
if(data != NULL) OPENSSL_free(data);
|
|
|
|
return(1);
|
|
}
|
|
|
|
#ifdef SCTP_AUTHENTICATION_EVENT
|
|
void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification *snp)
|
|
{
|
|
int ret;
|
|
struct sctp_authkey_event* authkeyevent = &snp->sn_auth_event;
|
|
|
|
if (authkeyevent->auth_indication == SCTP_AUTH_FREE_KEY)
|
|
{
|
|
struct sctp_authkeyid authkeyid;
|
|
|
|
/* delete key */
|
|
authkeyid.scact_keynumber = authkeyevent->auth_keynumber;
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DELETE_KEY,
|
|
&authkeyid, sizeof(struct sctp_authkeyid));
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static int dgram_sctp_read(BIO *b, char *out, int outl)
|
|
{
|
|
int ret = 0, n = 0, i, optval;
|
|
socklen_t optlen;
|
|
bio_dgram_sctp_data *data = (bio_dgram_sctp_data *)b->ptr;
|
|
union sctp_notification *snp;
|
|
struct msghdr msg;
|
|
struct iovec iov;
|
|
struct cmsghdr *cmsg;
|
|
char cmsgbuf[512];
|
|
|
|
if (out != NULL)
|
|
{
|
|
clear_socket_error();
|
|
|
|
do
|
|
{
|
|
memset(&data->rcvinfo, 0x00, sizeof(struct bio_dgram_sctp_rcvinfo));
|
|
iov.iov_base = out;
|
|
iov.iov_len = outl;
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = cmsgbuf;
|
|
msg.msg_controllen = 512;
|
|
msg.msg_flags = 0;
|
|
n = recvmsg(b->num, &msg, 0);
|
|
|
|
if (msg.msg_controllen > 0)
|
|
{
|
|
for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
|
|
{
|
|
if (cmsg->cmsg_level != IPPROTO_SCTP)
|
|
continue;
|
|
#ifdef SCTP_RCVINFO
|
|
if (cmsg->cmsg_type == SCTP_RCVINFO)
|
|
{
|
|
struct sctp_rcvinfo *rcvinfo;
|
|
|
|
rcvinfo = (struct sctp_rcvinfo *)CMSG_DATA(cmsg);
|
|
data->rcvinfo.rcv_sid = rcvinfo->rcv_sid;
|
|
data->rcvinfo.rcv_ssn = rcvinfo->rcv_ssn;
|
|
data->rcvinfo.rcv_flags = rcvinfo->rcv_flags;
|
|
data->rcvinfo.rcv_ppid = rcvinfo->rcv_ppid;
|
|
data->rcvinfo.rcv_tsn = rcvinfo->rcv_tsn;
|
|
data->rcvinfo.rcv_cumtsn = rcvinfo->rcv_cumtsn;
|
|
data->rcvinfo.rcv_context = rcvinfo->rcv_context;
|
|
}
|
|
#endif
|
|
#ifdef SCTP_SNDRCV
|
|
if (cmsg->cmsg_type == SCTP_SNDRCV)
|
|
{
|
|
struct sctp_sndrcvinfo *sndrcvinfo;
|
|
|
|
sndrcvinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
|
|
data->rcvinfo.rcv_sid = sndrcvinfo->sinfo_stream;
|
|
data->rcvinfo.rcv_ssn = sndrcvinfo->sinfo_ssn;
|
|
data->rcvinfo.rcv_flags = sndrcvinfo->sinfo_flags;
|
|
data->rcvinfo.rcv_ppid = sndrcvinfo->sinfo_ppid;
|
|
data->rcvinfo.rcv_tsn = sndrcvinfo->sinfo_tsn;
|
|
data->rcvinfo.rcv_cumtsn = sndrcvinfo->sinfo_cumtsn;
|
|
data->rcvinfo.rcv_context = sndrcvinfo->sinfo_context;
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
if (n <= 0)
|
|
{
|
|
if (n < 0)
|
|
ret = n;
|
|
break;
|
|
}
|
|
|
|
if (msg.msg_flags & MSG_NOTIFICATION)
|
|
{
|
|
snp = (union sctp_notification*) out;
|
|
if (snp->sn_header.sn_type == SCTP_SENDER_DRY_EVENT)
|
|
{
|
|
#ifdef SCTP_EVENT
|
|
struct sctp_event event;
|
|
#else
|
|
struct sctp_event_subscribe event;
|
|
socklen_t eventsize;
|
|
#endif
|
|
/* If a message has been delayed until the socket
|
|
* is dry, it can be sent now.
|
|
*/
|
|
if (data->saved_message.length > 0)
|
|
{
|
|
dgram_sctp_write(data->saved_message.bio, data->saved_message.data,
|
|
data->saved_message.length);
|
|
OPENSSL_free(data->saved_message.data);
|
|
data->saved_message.length = 0;
|
|
}
|
|
|
|
/* disable sender dry event */
|
|
#ifdef SCTP_EVENT
|
|
memset(&event, 0, sizeof(struct sctp_event));
|
|
event.se_assoc_id = 0;
|
|
event.se_type = SCTP_SENDER_DRY_EVENT;
|
|
event.se_on = 0;
|
|
i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(struct sctp_event));
|
|
OPENSSL_assert(i >= 0);
|
|
#else
|
|
eventsize = sizeof(struct sctp_event_subscribe);
|
|
i = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, &eventsize);
|
|
OPENSSL_assert(i >= 0);
|
|
|
|
event.sctp_sender_dry_event = 0;
|
|
|
|
i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(struct sctp_event_subscribe));
|
|
OPENSSL_assert(i >= 0);
|
|
#endif
|
|
}
|
|
|
|
#ifdef SCTP_AUTHENTICATION_EVENT
|
|
if (snp->sn_header.sn_type == SCTP_AUTHENTICATION_EVENT)
|
|
dgram_sctp_handle_auth_free_key_event(b, snp);
|
|
#endif
|
|
|
|
if (data->handle_notifications != NULL)
|
|
data->handle_notifications(b, data->notification_context, (void*) out);
|
|
|
|
memset(out, 0, outl);
|
|
}
|
|
else
|
|
ret += n;
|
|
}
|
|
while ((msg.msg_flags & MSG_NOTIFICATION) && (msg.msg_flags & MSG_EOR) && (ret < outl));
|
|
|
|
if (ret > 0 && !(msg.msg_flags & MSG_EOR))
|
|
{
|
|
/* Partial message read, this should never happen! */
|
|
|
|
/* The buffer was too small, this means the peer sent
|
|
* a message that was larger than allowed. */
|
|
if (ret == outl)
|
|
return -1;
|
|
|
|
/* Test if socket buffer can handle max record
|
|
* size (2^14 + 2048 + 13)
|
|
*/
|
|
optlen = (socklen_t) sizeof(int);
|
|
ret = getsockopt(b->num, SOL_SOCKET, SO_RCVBUF, &optval, &optlen);
|
|
OPENSSL_assert(ret >= 0);
|
|
OPENSSL_assert(optval >= 18445);
|
|
|
|
/* Test if SCTP doesn't partially deliver below
|
|
* max record size (2^14 + 2048 + 13)
|
|
*/
|
|
optlen = (socklen_t) sizeof(int);
|
|
ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_PARTIAL_DELIVERY_POINT,
|
|
&optval, &optlen);
|
|
OPENSSL_assert(ret >= 0);
|
|
OPENSSL_assert(optval >= 18445);
|
|
|
|
/* Partially delivered notification??? Probably a bug.... */
|
|
OPENSSL_assert(!(msg.msg_flags & MSG_NOTIFICATION));
|
|
|
|
/* Everything seems ok till now, so it's most likely
|
|
* a message dropped by PR-SCTP.
|
|
*/
|
|
memset(out, 0, outl);
|
|
BIO_set_retry_read(b);
|
|
return -1;
|
|
}
|
|
|
|
BIO_clear_retry_flags(b);
|
|
if (ret < 0)
|
|
{
|
|
if (BIO_dgram_should_retry(ret))
|
|
{
|
|
BIO_set_retry_read(b);
|
|
data->_errno = get_last_socket_error();
|
|
}
|
|
}
|
|
|
|
/* Test if peer uses SCTP-AUTH before continuing */
|
|
if (!data->peer_auth_tested)
|
|
{
|
|
int ii, auth_data = 0, auth_forward = 0;
|
|
unsigned char *p;
|
|
struct sctp_authchunks *authchunks;
|
|
|
|
optlen = (socklen_t)(sizeof(sctp_assoc_t) + 256 * sizeof(uint8_t));
|
|
authchunks = OPENSSL_malloc(optlen);
|
|
memset(authchunks, 0, sizeof(optlen));
|
|
ii = getsockopt(b->num, IPPROTO_SCTP, SCTP_PEER_AUTH_CHUNKS, authchunks, &optlen);
|
|
OPENSSL_assert(ii >= 0);
|
|
|
|
for (p = (unsigned char*) authchunks->gauth_chunks;
|
|
p < (unsigned char*) authchunks + optlen;
|
|
p += sizeof(uint8_t))
|
|
{
|
|
if (*p == OPENSSL_SCTP_DATA_CHUNK_TYPE) auth_data = 1;
|
|
if (*p == OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE) auth_forward = 1;
|
|
}
|
|
|
|
OPENSSL_free(authchunks);
|
|
|
|
if (!auth_data || !auth_forward)
|
|
{
|
|
BIOerr(BIO_F_DGRAM_SCTP_READ,BIO_R_CONNECT_ERROR);
|
|
return -1;
|
|
}
|
|
|
|
data->peer_auth_tested = 1;
|
|
}
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
static int dgram_sctp_write(BIO *b, const char *in, int inl)
|
|
{
|
|
int ret;
|
|
bio_dgram_sctp_data *data = (bio_dgram_sctp_data *)b->ptr;
|
|
struct bio_dgram_sctp_sndinfo *sinfo = &(data->sndinfo);
|
|
struct bio_dgram_sctp_prinfo *pinfo = &(data->prinfo);
|
|
struct bio_dgram_sctp_sndinfo handshake_sinfo;
|
|
struct iovec iov[1];
|
|
struct msghdr msg;
|
|
struct cmsghdr *cmsg;
|
|
#if defined(SCTP_SNDINFO) && defined(SCTP_PRINFO)
|
|
char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndinfo)) + CMSG_SPACE(sizeof(struct sctp_prinfo))];
|
|
struct sctp_sndinfo *sndinfo;
|
|
struct sctp_prinfo *prinfo;
|
|
#else
|
|
char cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndrcvinfo))];
|
|
struct sctp_sndrcvinfo *sndrcvinfo;
|
|
#endif
|
|
|
|
clear_socket_error();
|
|
|
|
/* If we're send anything else than application data,
|
|
* disable all user parameters and flags.
|
|
*/
|
|
if (in[0] != 23) {
|
|
memset(&handshake_sinfo, 0x00, sizeof(struct bio_dgram_sctp_sndinfo));
|
|
#ifdef SCTP_SACK_IMMEDIATELY
|
|
handshake_sinfo.snd_flags = SCTP_SACK_IMMEDIATELY;
|
|
#endif
|
|
sinfo = &handshake_sinfo;
|
|
}
|
|
|
|
/* If we have to send a shutdown alert message and the
|
|
* socket is not dry yet, we have to save it and send it
|
|
* as soon as the socket gets dry.
|
|
*/
|
|
if (data->save_shutdown && !BIO_dgram_sctp_wait_for_dry(b))
|
|
{
|
|
data->saved_message.bio = b;
|
|
data->saved_message.length = inl;
|
|
data->saved_message.data = OPENSSL_malloc(inl);
|
|
memcpy(data->saved_message.data, in, inl);
|
|
return inl;
|
|
}
|
|
|
|
iov[0].iov_base = (char *)in;
|
|
iov[0].iov_len = inl;
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = (caddr_t)cmsgbuf;
|
|
msg.msg_controllen = 0;
|
|
msg.msg_flags = 0;
|
|
#if defined(SCTP_SNDINFO) && defined(SCTP_PRINFO)
|
|
cmsg = (struct cmsghdr *)cmsgbuf;
|
|
cmsg->cmsg_level = IPPROTO_SCTP;
|
|
cmsg->cmsg_type = SCTP_SNDINFO;
|
|
cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndinfo));
|
|
sndinfo = (struct sctp_sndinfo *)CMSG_DATA(cmsg);
|
|
memset(sndinfo, 0, sizeof(struct sctp_sndinfo));
|
|
sndinfo->snd_sid = sinfo->snd_sid;
|
|
sndinfo->snd_flags = sinfo->snd_flags;
|
|
sndinfo->snd_ppid = sinfo->snd_ppid;
|
|
sndinfo->snd_context = sinfo->snd_context;
|
|
msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndinfo));
|
|
|
|
cmsg = (struct cmsghdr *)&cmsgbuf[CMSG_SPACE(sizeof(struct sctp_sndinfo))];
|
|
cmsg->cmsg_level = IPPROTO_SCTP;
|
|
cmsg->cmsg_type = SCTP_PRINFO;
|
|
cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_prinfo));
|
|
prinfo = (struct sctp_prinfo *)CMSG_DATA(cmsg);
|
|
memset(prinfo, 0, sizeof(struct sctp_prinfo));
|
|
prinfo->pr_policy = pinfo->pr_policy;
|
|
prinfo->pr_value = pinfo->pr_value;
|
|
msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_prinfo));
|
|
#else
|
|
cmsg = (struct cmsghdr *)cmsgbuf;
|
|
cmsg->cmsg_level = IPPROTO_SCTP;
|
|
cmsg->cmsg_type = SCTP_SNDRCV;
|
|
cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
|
|
sndrcvinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
|
|
memset(sndrcvinfo, 0, sizeof(struct sctp_sndrcvinfo));
|
|
sndrcvinfo->sinfo_stream = sinfo->snd_sid;
|
|
sndrcvinfo->sinfo_flags = sinfo->snd_flags;
|
|
#ifdef __FreeBSD__
|
|
sndrcvinfo->sinfo_flags |= pinfo->pr_policy;
|
|
#endif
|
|
sndrcvinfo->sinfo_ppid = sinfo->snd_ppid;
|
|
sndrcvinfo->sinfo_context = sinfo->snd_context;
|
|
sndrcvinfo->sinfo_timetolive = pinfo->pr_value;
|
|
msg.msg_controllen += CMSG_SPACE(sizeof(struct sctp_sndrcvinfo));
|
|
#endif
|
|
|
|
ret = sendmsg(b->num, &msg, 0);
|
|
|
|
BIO_clear_retry_flags(b);
|
|
if (ret <= 0)
|
|
{
|
|
if (BIO_dgram_should_retry(ret))
|
|
{
|
|
BIO_set_retry_write(b);
|
|
data->_errno = get_last_socket_error();
|
|
}
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
static long dgram_sctp_ctrl(BIO *b, int cmd, long num, void *ptr)
|
|
{
|
|
long ret=1;
|
|
bio_dgram_sctp_data *data = NULL;
|
|
socklen_t sockopt_len = 0;
|
|
struct sctp_authkeyid authkeyid;
|
|
struct sctp_authkey *authkey = NULL;
|
|
|
|
data = (bio_dgram_sctp_data *)b->ptr;
|
|
|
|
switch (cmd)
|
|
{
|
|
case BIO_CTRL_DGRAM_QUERY_MTU:
|
|
/* Set to maximum (2^14)
|
|
* and ignore user input to enable transport
|
|
* protocol fragmentation.
|
|
* Returns always 2^14.
|
|
*/
|
|
data->mtu = 16384;
|
|
ret = data->mtu;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_MTU:
|
|
/* Set to maximum (2^14)
|
|
* and ignore input to enable transport
|
|
* protocol fragmentation.
|
|
* Returns always 2^14.
|
|
*/
|
|
data->mtu = 16384;
|
|
ret = data->mtu;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_CONNECTED:
|
|
case BIO_CTRL_DGRAM_CONNECT:
|
|
/* Returns always -1. */
|
|
ret = -1;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT:
|
|
/* SCTP doesn't need the DTLS timer
|
|
* Returns always 1.
|
|
*/
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_SET_IN_HANDSHAKE:
|
|
if (num > 0)
|
|
data->in_handshake = 1;
|
|
else
|
|
data->in_handshake = 0;
|
|
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_NODELAY, &data->in_handshake, sizeof(int));
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY:
|
|
/* New shared key for SCTP AUTH.
|
|
* Returns 0 on success, -1 otherwise.
|
|
*/
|
|
|
|
/* Get active key */
|
|
sockopt_len = sizeof(struct sctp_authkeyid);
|
|
ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, &authkeyid, &sockopt_len);
|
|
if (ret < 0) break;
|
|
|
|
/* Add new key */
|
|
sockopt_len = sizeof(struct sctp_authkey) + 64 * sizeof(uint8_t);
|
|
authkey = OPENSSL_malloc(sockopt_len);
|
|
if (authkey == NULL)
|
|
{
|
|
ret = -1;
|
|
break;
|
|
}
|
|
memset(authkey, 0x00, sockopt_len);
|
|
authkey->sca_keynumber = authkeyid.scact_keynumber + 1;
|
|
#ifndef __FreeBSD__
|
|
/* This field is missing in FreeBSD 8.2 and earlier,
|
|
* and FreeBSD 8.3 and higher work without it.
|
|
*/
|
|
authkey->sca_keylength = 64;
|
|
#endif
|
|
memcpy(&authkey->sca_key[0], ptr, 64 * sizeof(uint8_t));
|
|
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_KEY, authkey, sockopt_len);
|
|
OPENSSL_free(authkey);
|
|
authkey = NULL;
|
|
if (ret < 0) break;
|
|
|
|
/* Reset active key */
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY,
|
|
&authkeyid, sizeof(struct sctp_authkeyid));
|
|
if (ret < 0) break;
|
|
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_NEXT_AUTH_KEY:
|
|
/* Returns 0 on success, -1 otherwise. */
|
|
|
|
/* Get active key */
|
|
sockopt_len = sizeof(struct sctp_authkeyid);
|
|
ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, &authkeyid, &sockopt_len);
|
|
if (ret < 0) break;
|
|
|
|
/* Set active key */
|
|
authkeyid.scact_keynumber = authkeyid.scact_keynumber + 1;
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY,
|
|
&authkeyid, sizeof(struct sctp_authkeyid));
|
|
if (ret < 0) break;
|
|
|
|
/* CCS has been sent, so remember that and fall through
|
|
* to check if we need to deactivate an old key
|
|
*/
|
|
data->ccs_sent = 1;
|
|
|
|
case BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD:
|
|
/* Returns 0 on success, -1 otherwise. */
|
|
|
|
/* Has this command really been called or is this just a fall-through? */
|
|
if (cmd == BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD)
|
|
data->ccs_rcvd = 1;
|
|
|
|
/* CSS has been both, received and sent, so deactivate an old key */
|
|
if (data->ccs_rcvd == 1 && data->ccs_sent == 1)
|
|
{
|
|
/* Get active key */
|
|
sockopt_len = sizeof(struct sctp_authkeyid);
|
|
ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_ACTIVE_KEY, &authkeyid, &sockopt_len);
|
|
if (ret < 0) break;
|
|
|
|
/* Deactivate key or delete second last key if
|
|
* SCTP_AUTHENTICATION_EVENT is not available.
|
|
*/
|
|
authkeyid.scact_keynumber = authkeyid.scact_keynumber - 1;
|
|
#ifdef SCTP_AUTH_DEACTIVATE_KEY
|
|
sockopt_len = sizeof(struct sctp_authkeyid);
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DEACTIVATE_KEY,
|
|
&authkeyid, sockopt_len);
|
|
if (ret < 0) break;
|
|
#endif
|
|
#ifndef SCTP_AUTHENTICATION_EVENT
|
|
if (authkeyid.scact_keynumber > 0)
|
|
{
|
|
authkeyid.scact_keynumber = authkeyid.scact_keynumber - 1;
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_AUTH_DELETE_KEY,
|
|
&authkeyid, sizeof(struct sctp_authkeyid));
|
|
if (ret < 0) break;
|
|
}
|
|
#endif
|
|
|
|
data->ccs_rcvd = 0;
|
|
data->ccs_sent = 0;
|
|
}
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_GET_SNDINFO:
|
|
/* Returns the size of the copied struct. */
|
|
if (num > (long) sizeof(struct bio_dgram_sctp_sndinfo))
|
|
num = sizeof(struct bio_dgram_sctp_sndinfo);
|
|
|
|
memcpy(ptr, &(data->sndinfo), num);
|
|
ret = num;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_SET_SNDINFO:
|
|
/* Returns the size of the copied struct. */
|
|
if (num > (long) sizeof(struct bio_dgram_sctp_sndinfo))
|
|
num = sizeof(struct bio_dgram_sctp_sndinfo);
|
|
|
|
memcpy(&(data->sndinfo), ptr, num);
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_GET_RCVINFO:
|
|
/* Returns the size of the copied struct. */
|
|
if (num > (long) sizeof(struct bio_dgram_sctp_rcvinfo))
|
|
num = sizeof(struct bio_dgram_sctp_rcvinfo);
|
|
|
|
memcpy(ptr, &data->rcvinfo, num);
|
|
|
|
ret = num;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_SET_RCVINFO:
|
|
/* Returns the size of the copied struct. */
|
|
if (num > (long) sizeof(struct bio_dgram_sctp_rcvinfo))
|
|
num = sizeof(struct bio_dgram_sctp_rcvinfo);
|
|
|
|
memcpy(&(data->rcvinfo), ptr, num);
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_GET_PRINFO:
|
|
/* Returns the size of the copied struct. */
|
|
if (num > (long) sizeof(struct bio_dgram_sctp_prinfo))
|
|
num = sizeof(struct bio_dgram_sctp_prinfo);
|
|
|
|
memcpy(ptr, &(data->prinfo), num);
|
|
ret = num;
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_SET_PRINFO:
|
|
/* Returns the size of the copied struct. */
|
|
if (num > (long) sizeof(struct bio_dgram_sctp_prinfo))
|
|
num = sizeof(struct bio_dgram_sctp_prinfo);
|
|
|
|
memcpy(&(data->prinfo), ptr, num);
|
|
break;
|
|
case BIO_CTRL_DGRAM_SCTP_SAVE_SHUTDOWN:
|
|
/* Returns always 1. */
|
|
if (num > 0)
|
|
data->save_shutdown = 1;
|
|
else
|
|
data->save_shutdown = 0;
|
|
break;
|
|
|
|
default:
|
|
/* Pass to default ctrl function to
|
|
* process SCTP unspecific commands
|
|
*/
|
|
ret=dgram_ctrl(b, cmd, num, ptr);
|
|
break;
|
|
}
|
|
return(ret);
|
|
}
|
|
|
|
int BIO_dgram_sctp_notification_cb(BIO *b,
|
|
void (*handle_notifications)(BIO *bio, void *context, void *buf),
|
|
void *context)
|
|
{
|
|
bio_dgram_sctp_data *data = (bio_dgram_sctp_data *) b->ptr;
|
|
|
|
if (handle_notifications != NULL)
|
|
{
|
|
data->handle_notifications = handle_notifications;
|
|
data->notification_context = context;
|
|
}
|
|
else
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int BIO_dgram_sctp_wait_for_dry(BIO *b)
|
|
{
|
|
int is_dry = 0;
|
|
int n, sockflags, ret;
|
|
union sctp_notification snp;
|
|
struct msghdr msg;
|
|
struct iovec iov;
|
|
#ifdef SCTP_EVENT
|
|
struct sctp_event event;
|
|
#else
|
|
struct sctp_event_subscribe event;
|
|
socklen_t eventsize;
|
|
#endif
|
|
bio_dgram_sctp_data *data = (bio_dgram_sctp_data *)b->ptr;
|
|
|
|
/* set sender dry event */
|
|
#ifdef SCTP_EVENT
|
|
memset(&event, 0, sizeof(struct sctp_event));
|
|
event.se_assoc_id = 0;
|
|
event.se_type = SCTP_SENDER_DRY_EVENT;
|
|
event.se_on = 1;
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(struct sctp_event));
|
|
#else
|
|
eventsize = sizeof(struct sctp_event_subscribe);
|
|
ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, &eventsize);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
event.sctp_sender_dry_event = 1;
|
|
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(struct sctp_event_subscribe));
|
|
#endif
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
/* peek for notification */
|
|
memset(&snp, 0x00, sizeof(union sctp_notification));
|
|
iov.iov_base = (char *)&snp;
|
|
iov.iov_len = sizeof(union sctp_notification);
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = NULL;
|
|
msg.msg_controllen = 0;
|
|
msg.msg_flags = 0;
|
|
|
|
n = recvmsg(b->num, &msg, MSG_PEEK);
|
|
if (n <= 0)
|
|
{
|
|
if ((n < 0) && (get_last_socket_error() != EAGAIN) && (get_last_socket_error() != EWOULDBLOCK))
|
|
return -1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* if we find a notification, process it and try again if necessary */
|
|
while (msg.msg_flags & MSG_NOTIFICATION)
|
|
{
|
|
memset(&snp, 0x00, sizeof(union sctp_notification));
|
|
iov.iov_base = (char *)&snp;
|
|
iov.iov_len = sizeof(union sctp_notification);
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = NULL;
|
|
msg.msg_controllen = 0;
|
|
msg.msg_flags = 0;
|
|
|
|
n = recvmsg(b->num, &msg, 0);
|
|
if (n <= 0)
|
|
{
|
|
if ((n < 0) && (get_last_socket_error() != EAGAIN) && (get_last_socket_error() != EWOULDBLOCK))
|
|
return -1;
|
|
else
|
|
return is_dry;
|
|
}
|
|
|
|
if (snp.sn_header.sn_type == SCTP_SENDER_DRY_EVENT)
|
|
{
|
|
is_dry = 1;
|
|
|
|
/* disable sender dry event */
|
|
#ifdef SCTP_EVENT
|
|
memset(&event, 0, sizeof(struct sctp_event));
|
|
event.se_assoc_id = 0;
|
|
event.se_type = SCTP_SENDER_DRY_EVENT;
|
|
event.se_on = 0;
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENT, &event, sizeof(struct sctp_event));
|
|
#else
|
|
eventsize = (socklen_t) sizeof(struct sctp_event_subscribe);
|
|
ret = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, &eventsize);
|
|
if (ret < 0)
|
|
return -1;
|
|
|
|
event.sctp_sender_dry_event = 0;
|
|
|
|
ret = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, sizeof(struct sctp_event_subscribe));
|
|
#endif
|
|
if (ret < 0)
|
|
return -1;
|
|
}
|
|
|
|
#ifdef SCTP_AUTHENTICATION_EVENT
|
|
if (snp.sn_header.sn_type == SCTP_AUTHENTICATION_EVENT)
|
|
dgram_sctp_handle_auth_free_key_event(b, &snp);
|
|
#endif
|
|
|
|
if (data->handle_notifications != NULL)
|
|
data->handle_notifications(b, data->notification_context, (void*) &snp);
|
|
|
|
/* found notification, peek again */
|
|
memset(&snp, 0x00, sizeof(union sctp_notification));
|
|
iov.iov_base = (char *)&snp;
|
|
iov.iov_len = sizeof(union sctp_notification);
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = NULL;
|
|
msg.msg_controllen = 0;
|
|
msg.msg_flags = 0;
|
|
|
|
/* if we have seen the dry already, don't wait */
|
|
if (is_dry)
|
|
{
|
|
sockflags = fcntl(b->num, F_GETFL, 0);
|
|
fcntl(b->num, F_SETFL, O_NONBLOCK);
|
|
}
|
|
|
|
n = recvmsg(b->num, &msg, MSG_PEEK);
|
|
|
|
if (is_dry)
|
|
{
|
|
fcntl(b->num, F_SETFL, sockflags);
|
|
}
|
|
|
|
if (n <= 0)
|
|
{
|
|
if ((n < 0) && (get_last_socket_error() != EAGAIN) && (get_last_socket_error() != EWOULDBLOCK))
|
|
return -1;
|
|
else
|
|
return is_dry;
|
|
}
|
|
}
|
|
|
|
/* read anything else */
|
|
return is_dry;
|
|
}
|
|
|
|
int BIO_dgram_sctp_msg_waiting(BIO *b)
|
|
{
|
|
int n, sockflags;
|
|
union sctp_notification snp;
|
|
struct msghdr msg;
|
|
struct iovec iov;
|
|
bio_dgram_sctp_data *data = (bio_dgram_sctp_data *)b->ptr;
|
|
|
|
/* Check if there are any messages waiting to be read */
|
|
do
|
|
{
|
|
memset(&snp, 0x00, sizeof(union sctp_notification));
|
|
iov.iov_base = (char *)&snp;
|
|
iov.iov_len = sizeof(union sctp_notification);
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = NULL;
|
|
msg.msg_controllen = 0;
|
|
msg.msg_flags = 0;
|
|
|
|
sockflags = fcntl(b->num, F_GETFL, 0);
|
|
fcntl(b->num, F_SETFL, O_NONBLOCK);
|
|
n = recvmsg(b->num, &msg, MSG_PEEK);
|
|
fcntl(b->num, F_SETFL, sockflags);
|
|
|
|
/* if notification, process and try again */
|
|
if (n > 0 && (msg.msg_flags & MSG_NOTIFICATION))
|
|
{
|
|
#ifdef SCTP_AUTHENTICATION_EVENT
|
|
if (snp.sn_header.sn_type == SCTP_AUTHENTICATION_EVENT)
|
|
dgram_sctp_handle_auth_free_key_event(b, &snp);
|
|
#endif
|
|
|
|
memset(&snp, 0x00, sizeof(union sctp_notification));
|
|
iov.iov_base = (char *)&snp;
|
|
iov.iov_len = sizeof(union sctp_notification);
|
|
msg.msg_name = NULL;
|
|
msg.msg_namelen = 0;
|
|
msg.msg_iov = &iov;
|
|
msg.msg_iovlen = 1;
|
|
msg.msg_control = NULL;
|
|
msg.msg_controllen = 0;
|
|
msg.msg_flags = 0;
|
|
n = recvmsg(b->num, &msg, 0);
|
|
|
|
if (data->handle_notifications != NULL)
|
|
data->handle_notifications(b, data->notification_context, (void*) &snp);
|
|
}
|
|
|
|
} while (n > 0 && (msg.msg_flags & MSG_NOTIFICATION));
|
|
|
|
/* Return 1 if there is a message to be read, return 0 otherwise. */
|
|
if (n > 0)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static int dgram_sctp_puts(BIO *bp, const char *str)
|
|
{
|
|
int n,ret;
|
|
|
|
n=strlen(str);
|
|
ret=dgram_sctp_write(bp,str,n);
|
|
return(ret);
|
|
}
|
|
#endif
|
|
|
|
static int BIO_dgram_should_retry(int i)
|
|
{
|
|
int err;
|
|
|
|
if ((i == 0) || (i == -1))
|
|
{
|
|
err=get_last_socket_error();
|
|
|
|
#if defined(OPENSSL_SYS_WINDOWS)
|
|
/* If the socket return value (i) is -1
|
|
* and err is unexpectedly 0 at this point,
|
|
* the error code was overwritten by
|
|
* another system call before this error
|
|
* handling is called.
|
|
*/
|
|
#endif
|
|
|
|
return(BIO_dgram_non_fatal_error(err));
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
int BIO_dgram_non_fatal_error(int err)
|
|
{
|
|
switch (err)
|
|
{
|
|
#if defined(OPENSSL_SYS_WINDOWS)
|
|
# if defined(WSAEWOULDBLOCK)
|
|
case WSAEWOULDBLOCK:
|
|
# endif
|
|
|
|
# if 0 /* This appears to always be an error */
|
|
# if defined(WSAENOTCONN)
|
|
case WSAENOTCONN:
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef EWOULDBLOCK
|
|
# ifdef WSAEWOULDBLOCK
|
|
# if WSAEWOULDBLOCK != EWOULDBLOCK
|
|
case EWOULDBLOCK:
|
|
# endif
|
|
# else
|
|
case EWOULDBLOCK:
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef EINTR
|
|
case EINTR:
|
|
#endif
|
|
|
|
#ifdef EAGAIN
|
|
#if EWOULDBLOCK != EAGAIN
|
|
case EAGAIN:
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef EPROTO
|
|
case EPROTO:
|
|
#endif
|
|
|
|
#ifdef EINPROGRESS
|
|
case EINPROGRESS:
|
|
#endif
|
|
|
|
#ifdef EALREADY
|
|
case EALREADY:
|
|
#endif
|
|
|
|
return(1);
|
|
/* break; */
|
|
default:
|
|
break;
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
static void get_current_time(struct timeval *t)
|
|
{
|
|
#ifdef OPENSSL_SYS_WIN32
|
|
struct _timeb tb;
|
|
_ftime(&tb);
|
|
t->tv_sec = (long)tb.time;
|
|
t->tv_usec = (long)tb.millitm * 1000;
|
|
#elif defined(OPENSSL_SYS_VMS)
|
|
struct timeb tb;
|
|
ftime(&tb);
|
|
t->tv_sec = (long)tb.time;
|
|
t->tv_usec = (long)tb.millitm * 1000;
|
|
#else
|
|
gettimeofday(t, NULL);
|
|
#endif
|
|
}
|
|
|
|
#endif
|