| /* crypto/bio/bio_dgram.c */ |
| /* |
| * DTLS implementation written by Nagendra Modadugu |
| * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * openssl-core@OpenSSL.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <errno.h> |
| #define USE_SOCKETS |
| #include "cryptlib.h" |
| |
| #include <openssl/bio.h> |
| #ifndef OPENSSL_NO_DGRAM |
| |
| # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS) |
| # include <sys/timeb.h> |
| # endif |
| |
| # ifndef OPENSSL_NO_SCTP |
| # include <netinet/sctp.h> |
| # include <fcntl.h> |
| # define OPENSSL_SCTP_DATA_CHUNK_TYPE 0x00 |
| # define OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE 0xc0 |
| # endif |
| |
| # if defined(OPENSSL_SYS_LINUX) && !defined(IP_MTU) |
| # define IP_MTU 14 /* linux is lame */ |
| # endif |
| |
| # if defined(__FreeBSD__) && defined(IN6_IS_ADDR_V4MAPPED) |
| /* Standard definition causes type-punning problems. */ |
| # undef IN6_IS_ADDR_V4MAPPED |
| # define s6_addr32 __u6_addr.__u6_addr32 |
| # define IN6_IS_ADDR_V4MAPPED(a) \ |
| (((a)->s6_addr32[0] == 0) && \ |
| ((a)->s6_addr32[1] == 0) && \ |
| ((a)->s6_addr32[2] == htonl(0x0000ffff))) |
| # endif |
| |
| # ifdef WATT32 |
| # define sock_write SockWrite /* Watt-32 uses same names */ |
| # define sock_read SockRead |
| # define sock_puts SockPuts |
| # endif |
| |
| static int dgram_write(BIO *h, const char *buf, int num); |
| static int dgram_read(BIO *h, char *buf, int size); |
| static int dgram_puts(BIO *h, const char *str); |
| static long dgram_ctrl(BIO *h, int cmd, long arg1, void *arg2); |
| static int dgram_new(BIO *h); |
| static int dgram_free(BIO *data); |
| static int dgram_clear(BIO *bio); |
| |
| # ifndef OPENSSL_NO_SCTP |
| static int dgram_sctp_write(BIO *h, const char *buf, int num); |
| static int dgram_sctp_read(BIO *h, char *buf, int size); |
| static int dgram_sctp_puts(BIO *h, const char *str); |
| static long dgram_sctp_ctrl(BIO *h, int cmd, long arg1, void *arg2); |
| static int dgram_sctp_new(BIO *h); |
| static int dgram_sctp_free(BIO *data); |
| # ifdef SCTP_AUTHENTICATION_EVENT |
| static void dgram_sctp_handle_auth_free_key_event(BIO *b, union sctp_notification |
| *snp); |
| # endif |
| # endif |
| |
| static int BIO_dgram_should_retry(int s); |
| |
| static void get_current_time(struct timeval *t); |
| |
| static BIO_METHOD methods_dgramp = { |
| BIO_TYPE_DGRAM, |
| "datagram socket", |
| dgram_write, |
| dgram_read, |
| dgram_puts, |
| NULL, /* dgram_gets, */ |
| dgram_ctrl, |
| dgram_new, |
| dgram_free, |
| NULL, |
| }; |
| |
| # ifndef OPENSSL_NO_SCTP |
| static BIO_METHOD methods_dgramp_sctp = { |
| BIO_TYPE_DGRAM_SCTP, |
| "datagram sctp socket", |
| dgram_sctp_write, |
| dgram_sctp_read, |
| dgram_sctp_puts, |
| NULL, /* dgram_gets, */ |
| dgram_sctp_ctrl, |
| dgram_sctp_new, |
| dgram_sctp_free, |
| NULL, |
| }; |
| # endif |
| |
| typedef struct bio_dgram_data_st { |
| union { |
| struct sockaddr sa; |
| struct sockaddr_in sa_in; |
| # if OPENSSL_USE_IPV6 |
| struct sockaddr_in6 sa_in6; |
| # endif |
| } peer; |
| unsigned int connected; |
| unsigned int _errno; |
| unsigned int mtu; |
| struct timeval next_timeout; |
| struct timeval socket_timeout; |
| } bio_dgram_data; |
| |
| # ifndef OPENSSL_NO_SCTP |
| typedef struct bio_dgram_sctp_save_message_st { |
| BIO *bio; |
| char *data; |
| int length; |
| } bio_dgram_sctp_save_message; |
| |
| typedef struct bio_dgram_sctp_data_st { |
| union { |
| struct sockaddr sa; |
| struct sockaddr_in sa_in; |
| # if OPENSSL_USE_IPV6 |
| struct sockaddr_in6 sa_in6; |
| # endif |
| } peer; |
| unsigned int connected; |
| unsigned int _errno; |
| unsigned int mtu; |
| struct bio_dgram_sctp_sndinfo sndinfo; |
| struct bio_dgram_sctp_rcvinfo rcvinfo; |
| struct bio_dgram_sctp_prinfo prinfo; |
| void (*handle_notifications) (BIO *bio, void *context, void *buf); |
| void *notification_context; |
| int in_handshake; |
| int ccs_rcvd; |
| int ccs_sent; |
| int save_shutdown; |
| int peer_auth_tested; |
| bio_dgram_sctp_save_message saved_message; |
| } bio_dgram_sctp_data; |
| # endif |
| |
| BIO_METHOD *BIO_s_datagram(void) |
| { |
| return (&methods_dgramp); |
| } |
| |
| BIO *BIO_new_dgram(int fd, int close_flag) |
| { |
| BIO *ret; |
| |
| ret = BIO_new(BIO_s_datagram()); |
| if (ret == NULL) |
| return (NULL); |
| BIO_set_fd(ret, fd, close_flag); |
| return (ret); |
| } |
| |
| static int dgram_new(BIO *bi) |
| { |
| bio_dgram_data *data = NULL; |
| |
| bi->init = 0; |
| bi->num = 0; |
| data = OPENSSL_malloc(sizeof(bio_dgram_data)); |
| if (data == NULL) |
| return 0; |
| memset(data, 0x00, sizeof(bio_dgram_data)); |
| bi->ptr = data; |
| |
| bi->flags = 0; |
| return (1); |
| } |
| |
| static int dgram_free(BIO *a) |
| { |
| bio_dgram_data *data; |
| |
| if (a == NULL) |
| return (0); |
| if (!dgram_clear(a)) |
| return 0; |
| |
| data = (bio_dgram_data *)a->ptr; |
| if (data != NULL) |
| OPENSSL_free(data); |
| |
| return (1); |
| } |
| |
| static int dgram_clear(BIO *a) |
| { |
| if (a == NULL) |
| return (0); |
| if (a->shutdown) { |
| if (a->init) { |
| SHUTDOWN2(a->num); |
| } |
| a->init = 0; |
| a->flags = 0; |
| } |
| return (1); |
| } |
| |
| static void dgram_adjust_rcv_timeout(BIO *b) |
| { |
| # if defined(SO_RCVTIMEO) |
| bio_dgram_data *data = (bio_dgram_data *)b->ptr; |
| union { |
| size_t s; |
| int i; |
| } sz = { |
| 0 |
| }; |
| |
| /* Is a timer active? */ |
| if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0) { |
| struct timeval timenow, timeleft; |
| |
| /* Read current socket timeout */ |
| # ifdef OPENSSL_SYS_WINDOWS |
| int timeout; |
| |
| sz.i = sizeof(timeout); |
| if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, |
| (void *)&timeout, &sz.i) < 0) { |
| perror("getsockopt"); |
| } else { |
| data->socket_timeout.tv_sec = timeout / 1000; |
| data->socket_timeout.tv_usec = (timeout % 1000) * 1000; |
| } |
| # else |
| sz.i = sizeof(data->socket_timeout); |
| if (getsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, |
| &(data->socket_timeout), (void *)&sz) < 0) { |
| perror("getsockopt"); |
| } else if (sizeof(sz.s) != sizeof(sz.i) && sz.i == 0) |
| OPENSSL_assert(sz.s <= sizeof(data->socket_timeout)); |
| # endif |
| |
| /* Get current time */ |
| get_current_time(&timenow); |
| |
| /* Calculate time left until timer expires */ |
| memcpy(&timeleft, &(data->next_timeout), sizeof(struct timeval)); |
| if (timeleft.tv_usec < timenow.tv_usec) { |
| timeleft.tv_usec = 1000000 - timenow.tv_usec + timeleft.tv_usec; |
| timeleft.tv_sec--; |
| } else { |
| timeleft.tv_usec -= timenow.tv_usec; |
| } |
| if (timeleft.tv_sec < timenow.tv_sec) { |
| timeleft.tv_sec = 0; |
| timeleft.tv_usec = 1; |
| } else { |
| timeleft.tv_sec -= timenow.tv_sec; |
| } |
| |
| /* |
| * Adjust socket timeout if next handhake message timer will expire |
| * earlier. |
| */ |
| if ((data->socket_timeout.tv_sec == 0 |
| && data->socket_timeout.tv_usec == 0) |
| || (data->socket_timeout.tv_sec > timeleft.tv_sec) |
| || (data->socket_timeout.tv_sec == timeleft.tv_sec |
| && data->socket_timeout.tv_usec >= timeleft.tv_usec)) { |
| # ifdef OPENSSL_SYS_WINDOWS |
| timeout = timeleft.tv_sec * 1000 + timeleft.tv_usec / 1000; |
| if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, |
| (void *)&timeout, sizeof(timeout)) < 0) { |
| perror("setsockopt"); |
| } |
| # else |
| if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, &timeleft, |
| sizeof(struct timeval)) < 0) { |
| perror("setsockopt"); |
| } |
| # endif |
| } |
| } |
| # endif |
| } |
| |
| static void dgram_reset_rcv_timeout(BIO *b) |
| { |
| # if defined(SO_RCVTIMEO) |
| bio_dgram_data *data = (bio_dgram_data *)b->ptr; |
| |
| /* Is a timer active? */ |
| if (data->next_timeout.tv_sec > 0 || data->next_timeout.tv_usec > 0) { |
| # ifdef OPENSSL_SYS_WINDOWS |
| int timeout = data->socket_timeout.tv_sec * 1000 + |
| data->socket_timeout.tv_usec / 1000; |
| if (setsockopt(b->num, SOL_SOCKET, SO_RCVTIMEO, |
| (void *)&timeout, sizeof(timeout)) < 0) { |
| perror("setsockopt"); |
| } |
| # else |
| if (setsockopt |
| (b->num, SOL_SOCKET, SO_RCVTIMEO, &(data->socket_timeout), |
| sizeof(struct timeval)) < 0) { |
| perror("setsockopt"); |
| } |
| # endif |
| } |
| # endif |
| } |
| |
| static int dgram_read(BIO *b, char *out, int outl) |
| { |
| int ret = 0; |
| bio_dgram_data *data = (bio_dgram_data *)b->ptr; |
| |
| struct { |
| /* |
| * See commentary in b_sock.c. <appro> |
| */ |
| union { |
| size_t s; |
| int i; |
| } len; |
| union { |
| struct sockaddr sa; |
| struct sockaddr_in sa_in; |
| # if OPENSSL_USE_IPV6 |
| struct sockaddr_in6 sa_in6; |
| # endif |
| } peer; |
| } sa; |
| |
| sa.len.s = 0; |
| sa.len.i = sizeof(sa.peer); |
| |
| if (out != NULL) { |
| clear_socket_error(); |
| memset(&sa.peer, 0x00, sizeof(sa.peer)); |
| dgram_adjust_rcv_timeout(b); |
| ret = recvfrom(b->num, out, outl, 0, &sa.peer.sa, (void *)&sa.len); |
| if (sizeof(sa.len.i) != sizeof(sa.len.s) && sa.len.i == 0) { |
| OPENSSL_assert(sa.len.s <= sizeof(sa.peer)); |
| sa.len.i = (int)sa.len.s; |
| } |
| |
| if (!data->connected && ret >= 0) |
| BIO_ctrl(b, BIO_CTRL_DGRAM_SET_PEER, 0, &sa.peer); |
| |
| 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(); |
| } |
| } |
| |
| dgram_reset_rcv_timeout(b); |
| } |
| return (ret); |
| } |
| |
| static int dgram_write(BIO *b, const char *in, int inl) |
| { |
| int ret; |
| bio_dgram_data *data = (bio_dgram_data *)b->ptr; |
| clear_socket_error(); |
| |
| if (data->connected) |
| ret = writesocket(b->num, in, inl); |
| else { |
| int peerlen = sizeof(data->peer); |
| |
| if (data->peer.sa.sa_family == AF_INET) |
| peerlen = sizeof(data->peer.sa_in); |
| # if OPENSSL_USE_IPV6 |
| else if (data->peer.sa.sa_family == AF_INET6) |
| peerlen = sizeof(data->peer.sa_in6); |
| # endif |
| # if defined(NETWARE_CLIB) && defined(NETWARE_BSDSOCK) |
| ret = sendto(b->num, (char *)in, inl, 0, &data->peer.sa, peerlen); |
| # else |
| ret = sendto(b->num, in, inl, 0, &data->peer.sa, peerlen); |
| # endif |
| } |
| |
| 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(); |
| |
| # if 0 /* higher layers are responsible for querying |
| * MTU, if necessary */ |
| if (data->_errno == EMSGSIZE) |
| /* retrieve the new MTU */ |
| BIO_ctrl(b, BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL); |
| # endif |
| } |
| } |
| return (ret); |
| } |
| |
| static long dgram_get_mtu_overhead(bio_dgram_data *data) |
| { |
| long ret; |
| |
| switch (data->peer.sa.sa_family) { |
| case AF_INET: |
| /* |
| * Assume this is UDP - 20 bytes for IP, 8 bytes for UDP |
| */ |
| ret = 28; |
| break; |
| # if OPENSSL_USE_IPV6 |
| case AF_INET6: |
| # ifdef IN6_IS_ADDR_V4MAPPED |
| if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr)) |
| /* |
| * Assume this is UDP - 20 bytes for IP, 8 bytes for UDP |
| */ |
| ret = 28; |
| else |
| # endif |
| /* |
| * Assume this is UDP - 40 bytes for IP, 8 bytes for UDP |
| */ |
| ret = 48; |
| break; |
| # endif |
| default: |
| /* We don't know. Go with the historical default */ |
| ret = 28; |
| break; |
| } |
| return ret; |
| } |
| |
| static long dgram_ctrl(BIO *b, int cmd, long num, void *ptr) |
| { |
| long ret = 1; |
| int *ip; |
| struct sockaddr *to = NULL; |
| bio_dgram_data *data = NULL; |
| # if defined(OPENSSL_SYS_LINUX) && (defined(IP_MTU_DISCOVER) || defined(IP_MTU)) |
| int sockopt_val = 0; |
| socklen_t sockopt_len; /* assume that system supporting IP_MTU is |
| * modern enough to define socklen_t */ |
| socklen_t addr_len; |
| union { |
| struct sockaddr sa; |
| struct sockaddr_in s4; |
| # if OPENSSL_USE_IPV6 |
| struct sockaddr_in6 s6; |
| # endif |
| } addr; |
| # endif |
| |
| data = (bio_dgram_data *)b->ptr; |
| |
| switch (cmd) { |
| case BIO_CTRL_RESET: |
| num = 0; |
| ret = 0; |
| break; |
| case BIO_CTRL_INFO: |
| ret = 0; |
| break; |
| case BIO_C_SET_FD: |
| dgram_clear(b); |
| b->num = *((int *)ptr); |
| b->shutdown = (int)num; |
| b->init = 1; |
| break; |
| case BIO_C_GET_FD: |
| if (b->init) { |
| ip = (int *)ptr; |
| if (ip != NULL) |
| *ip = b->num; |
| ret = b->num; |
| } else |
| ret = -1; |
| break; |
| case BIO_CTRL_GET_CLOSE: |
| ret = b->shutdown; |
| break; |
| case BIO_CTRL_SET_CLOSE: |
| 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: |
| ret = -dgram_get_mtu_overhead(data); |
| switch (data->peer.sa.sa_family) { |
| case AF_INET: |
| ret += 576; |
| 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; |
| else |
| # endif |
| ret += 1280; |
| break; |
| # endif |
| default: |
| ret += 576; |
| 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 |
| case BIO_CTRL_DGRAM_GET_MTU_OVERHEAD: |
| ret = dgram_get_mtu_overhead(data); |
| break; |
| 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)); |
| if (ret < 0) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| auth.sauth_chunk = OPENSSL_SCTP_FORWARD_CUM_TSN_CHUNK_TYPE; |
| ret = |
| setsockopt(fd, IPPROTO_SCTP, SCTP_AUTH_CHUNK, &auth, |
| sizeof(struct sctp_authchunk)); |
| if (ret < 0) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| |
| /* |
| * 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); |
| if (!authchunks) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| memset(authchunks, 0, sizeof(sockopt_len)); |
| ret = |
| getsockopt(fd, IPPROTO_SCTP, SCTP_LOCAL_AUTH_CHUNKS, authchunks, |
| &sockopt_len); |
| |
| if (ret < 0) { |
| OPENSSL_free(authchunks); |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| |
| 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)); |
| if (ret < 0) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| # else |
| sockopt_len = (socklen_t) sizeof(struct sctp_event_subscribe); |
| ret = getsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, &sockopt_len); |
| if (ret < 0) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| |
| event.sctp_authentication_event = 1; |
| |
| ret = |
| setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event, |
| sizeof(struct sctp_event_subscribe)); |
| if (ret < 0) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| # 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)); |
| if (ret < 0) { |
| BIO_vfree(bio); |
| return (NULL); |
| } |
| |
| 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) { |
| if (data->saved_message.data != NULL) |
| OPENSSL_free(data->saved_message.data); |
| 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 (n <= 0) { |
| if (n < 0) |
| ret = n; |
| break; |
| } |
| |
| 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 (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.data = NULL; |
| 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)); |
| if (i < 0) { |
| ret = i; |
| break; |
| } |
| # else |
| eventsize = sizeof(struct sctp_event_subscribe); |
| i = getsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, |
| &eventsize); |
| if (i < 0) { |
| ret = i; |
| break; |
| } |
| |
| event.sctp_sender_dry_event = 0; |
| |
| i = setsockopt(b->num, IPPROTO_SCTP, SCTP_EVENTS, &event, |
| sizeof(struct sctp_event_subscribe)); |
| if (i < 0) { |
| ret = i; |
| break; |
| } |
| # 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); |
| if (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); |
| if (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); |
| if (!authchunks) { |
| BIOerr(BIO_F_DGRAM_SCTP_READ, ERR_R_MALLOC_FAILURE); |
| return -1; |
| } |
| memset(authchunks, 0, sizeof(optlen)); |
| ii = getsockopt(b->num, IPPROTO_SCTP, SCTP_PEER_AUTH_CHUNKS, |
| authchunks, &optlen); |
| |
| if (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)) { |
| char *tmp; |
| data->saved_message.bio = b; |
| if (!(tmp = OPENSSL_malloc(inl))) { |
| BIOerr(BIO_F_DGRAM_SCTP_WRITE, ERR_R_MALLOC_FAILURE); |
| return -1; |
| } |
| if (data->saved_message.data) |
| OPENSSL_free(data->saved_message.data); |
| data->saved_message.data = tmp; |
| memcpy(data->saved_message.data, in, inl); |
| data->saved_message.length = 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_GET_MTU_OVERHEAD: |
| /* |
| * We allow transport protocol fragmentation so this is irrelevant |
| */ |
| ret = 0; |
| 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 |
