/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <config.h>
#include "stream-ssl.h"
#include "dhparams.h"
-#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <inttypes.h>
#include <openssl/ssl.h>
#include <openssl/x509v3.h>
#include <poll.h>
-#include <sys/fcntl.h>
+#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include "coverage.h"
#include "dynamic-string.h"
#include "entropy.h"
-#include "leak-checker.h"
#include "ofpbuf.h"
#include "openflow/openflow.h"
#include "packets.h"
#include "stream-provider.h"
#include "stream.h"
#include "timeval.h"
-#include "vlog.h"
+#include "openvswitch/vlog.h"
+
+#ifdef _WIN32
+/* Ref: https://www.openssl.org/support/faq.html#PROG2
+ * Your application must link against the same version of the Win32 C-Runtime
+ * against which your openssl libraries were linked. The default version for
+ * OpenSSL is /MD - "Multithreaded DLL". If we compile Open vSwitch with
+ * something other than /MD, instead of re-compiling OpenSSL
+ * toolkit, openssl/applink.c can be #included. Also, it is important
+ * to add CRYPTO_malloc_init prior first call to OpenSSL.
+ *
+ * XXX: The behavior of the following #include when Open vSwitch is
+ * compiled with /MD is not tested. */
+#include <openssl/applink.c>
+#define SHUT_RDWR SD_BOTH
+#endif
VLOG_DEFINE_THIS_MODULE(stream_ssl);
static void ssl_protocol_cb(int write_p, int version, int content_type,
const void *, size_t, SSL *, void *sslv_);
static bool update_ssl_config(struct ssl_config_file *, const char *file_name);
+static int sock_errno(void);
static short int
want_to_poll_events(int want)
{
switch (want) {
case SSL_NOTHING:
- NOT_REACHED();
+ OVS_NOT_REACHED();
case SSL_READING:
return POLLIN;
return POLLOUT;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
static int
new_ssl_stream(const char *name, int fd, enum session_type type,
- enum ssl_state state, const struct sockaddr_in *remote,
- struct stream **streamp)
+ enum ssl_state state, struct stream **streamp)
{
- struct sockaddr_in local;
- socklen_t local_len = sizeof local;
struct ssl_stream *sslv;
SSL *ssl = NULL;
- int on = 1;
int retval;
/* Check for all the needful configuration. */
goto error;
}
- /* Get the local IP and port information */
- retval = getsockname(fd, (struct sockaddr *) &local, &local_len);
- if (retval) {
- memset(&local, 0, sizeof local);
- }
-
- /* Disable Nagle. */
- retval = setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &on, sizeof on);
- if (retval) {
- VLOG_ERR("%s: setsockopt(TCP_NODELAY): %s", name, strerror(errno));
- retval = errno;
- goto error;
+ /* Disable Nagle.
+ * On windows platforms, this can only be called upon TCP connected.
+ */
+ if (state == STATE_SSL_CONNECTING) {
+ setsockopt_tcp_nodelay(fd);
}
/* Create and configure OpenSSL stream. */
/* Create and return the ssl_stream. */
sslv = xmalloc(sizeof *sslv);
stream_init(&sslv->stream, &ssl_stream_class, EAGAIN, name);
- stream_set_remote_ip(&sslv->stream, remote->sin_addr.s_addr);
- stream_set_remote_port(&sslv->stream, remote->sin_port);
- stream_set_local_ip(&sslv->stream, local.sin_addr.s_addr);
- stream_set_local_port(&sslv->stream, local.sin_port);
sslv->state = state;
sslv->type = type;
sslv->fd = fd;
if (ssl) {
SSL_free(ssl);
}
- close(fd);
+ closesocket(fd);
return retval;
}
static int
ssl_open(const char *name, char *suffix, struct stream **streamp, uint8_t dscp)
{
- struct sockaddr_in sin;
int error, fd;
error = ssl_init();
return error;
}
- error = inet_open_active(SOCK_STREAM, suffix, OFP_SSL_PORT, &sin, &fd,
+ error = inet_open_active(SOCK_STREAM, suffix, OFP_PORT, NULL, &fd,
dscp);
if (fd >= 0) {
int state = error ? STATE_TCP_CONNECTING : STATE_SSL_CONNECTING;
- return new_ssl_stream(name, fd, CLIENT, state, &sin, streamp);
+ return new_ssl_stream(name, fd, CLIENT, state, streamp);
} else {
- VLOG_ERR("%s: connect: %s", name, strerror(error));
+ VLOG_ERR("%s: connect: %s", name, ovs_strerror(error));
return error;
}
}
return EPROTO;
} else {
VLOG_ERR("could not bootstrap CA cert: creating %s failed: %s",
- ca_cert.file_name, strerror(errno));
+ ca_cert.file_name, ovs_strerror(errno));
return errno;
}
}
if (!file) {
error = errno;
VLOG_ERR("could not bootstrap CA cert: fdopen failed: %s",
- strerror(error));
+ ovs_strerror(error));
unlink(ca_cert.file_name);
return error;
}
if (fclose(file)) {
error = errno;
VLOG_ERR("could not bootstrap CA cert: writing %s failed: %s",
- ca_cert.file_name, strerror(error));
+ ca_cert.file_name, ovs_strerror(error));
unlink(ca_cert.file_name);
return error;
}
/* SSL_CTX_add_client_CA makes a copy of cert's relevant data. */
SSL_CTX_add_client_CA(ctx, cert);
- /* SSL_CTX_use_certificate() takes ownership of the certificate passed in.
- * 'cert' is owned by sslv->ssl, so we need to duplicate it. */
- cert = X509_dup(cert);
- if (!cert) {
- out_of_memory();
- }
SSL_CTX_set_cert_store(ctx, X509_STORE_new());
if (SSL_CTX_load_verify_locations(ctx, ca_cert.file_name, NULL) != 1) {
VLOG_ERR("SSL_CTX_load_verify_locations: %s",
return retval;
}
sslv->state = STATE_SSL_CONNECTING;
+ setsockopt_tcp_nodelay(sslv->fd);
/* Fall through. */
case STATE_SSL_CONNECTING:
/* Capture the first few bytes of received data so that we can guess
- * what kind of funny data we've been sent if SSL negotation fails. */
+ * what kind of funny data we've been sent if SSL negotiation fails. */
if (sslv->n_head <= 0) {
sslv->n_head = recv(sslv->fd, sslv->head, sizeof sslv->head,
MSG_PEEK);
: "SSL_accept"), retval, error, &unused);
shutdown(sslv->fd, SHUT_RDWR);
stream_report_content(sslv->head, sslv->n_head, STREAM_SSL,
- THIS_MODULE, stream_get_name(stream));
+ &this_module, stream_get_name(stream));
return EPROTO;
}
} else if (bootstrap_ca_cert) {
}
}
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
static void
ERR_clear_error();
SSL_free(sslv->ssl);
- close(sslv->fd);
+ closesocket(sslv->fd);
free(sslv);
}
if (ret < 0) {
int status = errno;
VLOG_WARN_RL(&rl, "%s: system error (%s)",
- function, strerror(status));
+ function, ovs_strerror(status));
return status;
} else {
VLOG_WARN_RL(&rl, "%s: unexpected SSL connection close",
ssize_t ret;
/* Behavior of zero-byte SSL_read is poorly defined. */
- assert(n > 0);
+ ovs_assert(n > 0);
old_state = SSL_get_state(sslv->ssl);
ret = SSL_read(sslv->ssl, buffer, n);
ssl_clear_txbuf(sslv);
return n;
case EAGAIN:
- leak_checker_claim(buffer);
return n;
default:
sslv->txbuf = NULL;
/* ssl_connect() called SSL_accept() or SSL_connect(), which
* set up the status that we test here. */
poll_fd_wait(sslv->fd,
- want_to_poll_events(SSL_want(sslv->ssl)));
+ want_to_poll_events(SSL_want(sslv->ssl)));
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
break;
break;
default:
- NOT_REACHED();
+ OVS_NOT_REACHED();
}
}
pssl_open(const char *name OVS_UNUSED, char *suffix, struct pstream **pstreamp,
uint8_t dscp)
{
+ char bound_name[SS_NTOP_BUFSIZE + 16];
+ char addrbuf[SS_NTOP_BUFSIZE];
+ struct sockaddr_storage ss;
struct pssl_pstream *pssl;
- struct sockaddr_in sin;
- char bound_name[128];
+ uint16_t port;
int retval;
int fd;
return retval;
}
- fd = inet_open_passive(SOCK_STREAM, suffix, OFP_SSL_PORT, &sin, dscp);
+ fd = inet_open_passive(SOCK_STREAM, suffix, OFP_PORT, &ss, dscp, true);
if (fd < 0) {
return -fd;
}
- sprintf(bound_name, "pssl:%"PRIu16":"IP_FMT,
- ntohs(sin.sin_port), IP_ARGS(sin.sin_addr.s_addr));
+
+ port = ss_get_port(&ss);
+ snprintf(bound_name, sizeof bound_name, "pssl:%"PRIu16":%s",
+ port, ss_format_address(&ss, addrbuf, sizeof addrbuf));
pssl = xmalloc(sizeof *pssl);
pstream_init(&pssl->pstream, &pssl_pstream_class, bound_name);
+ pstream_set_bound_port(&pssl->pstream, htons(port));
pssl->fd = fd;
*pstreamp = &pssl->pstream;
return 0;
pssl_close(struct pstream *pstream)
{
struct pssl_pstream *pssl = pssl_pstream_cast(pstream);
- close(pssl->fd);
+ closesocket(pssl->fd);
free(pssl);
}
pssl_accept(struct pstream *pstream, struct stream **new_streamp)
{
struct pssl_pstream *pssl = pssl_pstream_cast(pstream);
- struct sockaddr_in sin;
- socklen_t sin_len = sizeof sin;
- char name[128];
+ char name[SS_NTOP_BUFSIZE + 16];
+ char addrbuf[SS_NTOP_BUFSIZE];
+ struct sockaddr_storage ss;
+ socklen_t ss_len = sizeof ss;
int new_fd;
int error;
- new_fd = accept(pssl->fd, (struct sockaddr *) &sin, &sin_len);
+ new_fd = accept(pssl->fd, (struct sockaddr *) &ss, &ss_len);
if (new_fd < 0) {
- error = errno;
+ error = sock_errno();
+#ifdef _WIN32
+ if (error == WSAEWOULDBLOCK) {
+ error = EAGAIN;
+ }
+#endif
if (error != EAGAIN) {
- VLOG_DBG_RL(&rl, "accept: %s", strerror(error));
+ VLOG_DBG_RL(&rl, "accept: %s", sock_strerror(error));
}
return error;
}
error = set_nonblocking(new_fd);
if (error) {
- close(new_fd);
+ closesocket(new_fd);
return error;
}
- sprintf(name, "ssl:"IP_FMT, IP_ARGS(sin.sin_addr.s_addr));
- if (sin.sin_port != htons(OFP_SSL_PORT)) {
- sprintf(strchr(name, '\0'), ":%"PRIu16, ntohs(sin.sin_port));
- }
- return new_ssl_stream(name, new_fd, SERVER, STATE_SSL_CONNECTING, &sin,
+ snprintf(name, sizeof name, "ssl:%s:%"PRIu16,
+ ss_format_address(&ss, addrbuf, sizeof addrbuf),
+ ss_get_port(&ss));
+ return new_ssl_stream(name, new_fd, SERVER, STATE_SSL_CONNECTING,
new_streamp);
}
poll_fd_wait(pssl->fd, POLLIN);
}
-static int
-pssl_set_dscp(struct pstream *pstream, uint8_t dscp)
-{
- struct pssl_pstream *pssl = pssl_pstream_cast(pstream);
- return set_dscp(pssl->fd, dscp);
-}
-
const struct pstream_class pssl_pstream_class = {
"pssl",
true,
pssl_close,
pssl_accept,
pssl_wait,
- pssl_set_dscp,
};
\f
/*
static int init_status = -1;
if (init_status < 0) {
init_status = do_ssl_init();
- assert(init_status >= 0);
+ ovs_assert(init_status >= 0);
}
return init_status;
}
{
SSL_METHOD *method;
+#ifdef _WIN32
+ /* The following call is needed if we "#include <openssl/applink.c>". */
+ CRYPTO_malloc_init();
+#endif
SSL_library_init();
SSL_load_error_strings();
RAND_seed(seed, sizeof seed);
}
- /* New OpenSSL changed TLSv1_method() to return a "const" pointer, so the
- * cast is needed to avoid a warning with those newer versions. */
- method = CONST_CAST(SSL_METHOD *, TLSv1_method());
+ /* OpenSSL has a bunch of "connection methods": SSLv2_method(),
+ * SSLv3_method(), TLSv1_method(), SSLv23_method(), ... Most of these
+ * support exactly one version of SSL, e.g. TLSv1_method() supports TLSv1
+ * only, not any earlier *or later* version. The only exception is
+ * SSLv23_method(), which in fact supports *any* version of SSL and TLS.
+ * We don't want SSLv2 or SSLv3 support, so we turn it off below with
+ * SSL_CTX_set_options().
+ *
+ * The cast is needed to avoid a warning with newer versions of OpenSSL in
+ * which SSLv23_method() returns a "const" pointer. */
+ method = CONST_CAST(SSL_METHOD *, SSLv23_method());
if (method == NULL) {
VLOG_ERR("TLSv1_method: %s", ERR_error_string(ERR_get_error(), NULL));
return ENOPROTOOPT;
SSL_CTX_set_mode(ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
NULL);
+ SSL_CTX_set_session_cache_mode(ctx, SSL_SESS_CACHE_OFF);
return 0;
}
* here. */
error = get_mtime(file_name, &mtime);
if (error && error != ENOENT) {
- VLOG_ERR_RL(&rl, "%s: stat failed (%s)", file_name, strerror(error));
+ VLOG_ERR_RL(&rl, "%s: stat failed (%s)",
+ file_name, ovs_strerror(error));
}
if (config->file_name
&& !strcmp(config->file_name, file_name)
static void
stream_ssl_set_certificate_file__(const char *file_name)
{
- if (SSL_CTX_use_certificate_chain_file(ctx, file_name) == 1) {
+ if (SSL_CTX_use_certificate_file(ctx, file_name, SSL_FILETYPE_PEM) == 1) {
certificate.read = true;
} else {
VLOG_ERR("SSL_use_certificate_file: %s",
file = fopen(file_name, "r");
if (!file) {
VLOG_ERR("failed to open %s for reading: %s",
- file_name, strerror(errno));
+ file_name, ovs_strerror(errno));
return errno;
}
free(*certs);
*certs = NULL;
*n_certs = 0;
+ fclose(file);
return EIO;
}
if (i) {
ds_put_char(&fp, ':');
}
- ds_put_format(&fp, "%02hhx", digest[i]);
+ ds_put_format(&fp, "%02x", digest[i]);
}
}
subject = X509_NAME_oneline(X509_get_subject_name(cert), NULL, 0);
stream_ssl_set_ca_cert_file__(const char *file_name,
bool bootstrap, bool force)
{
- X509 **certs;
- size_t n_certs;
struct stat s;
if (!update_ssl_config(&ca_cert, file_name) && !force) {
"(this is a security risk)");
} else if (bootstrap && stat(file_name, &s) && errno == ENOENT) {
bootstrap_ca_cert = true;
- } else if (!read_cert_file(file_name, &certs, &n_certs)) {
- size_t i;
-
- /* Set up list of CAs that the server will accept from the client. */
- for (i = 0; i < n_certs; i++) {
- /* SSL_CTX_add_client_CA makes a copy of the relevant data. */
- if (SSL_CTX_add_client_CA(ctx, certs[i]) != 1) {
- VLOG_ERR("failed to add client certificate %zu from %s: %s",
- i, file_name,
+ } else {
+ STACK_OF(X509_NAME) *cert_names = SSL_load_client_CA_file(file_name);
+ if (cert_names) {
+ /* Set up list of CAs that the server will accept from the
+ * client. */
+ SSL_CTX_set_client_CA_list(ctx, cert_names);
+
+ /* Set up CAs for OpenSSL to trust in verifying the peer's
+ * certificate. */
+ SSL_CTX_set_cert_store(ctx, X509_STORE_new());
+ if (SSL_CTX_load_verify_locations(ctx, file_name, NULL) != 1) {
+ VLOG_ERR("SSL_CTX_load_verify_locations: %s",
ERR_error_string(ERR_get_error(), NULL));
- } else {
- log_ca_cert(file_name, certs[i]);
+ return;
}
- X509_free(certs[i]);
- }
- free(certs);
-
- /* Set up CAs for OpenSSL to trust in verifying the peer's
- * certificate. */
- SSL_CTX_set_cert_store(ctx, X509_STORE_new());
- if (SSL_CTX_load_verify_locations(ctx, file_name, NULL) != 1) {
- VLOG_ERR("SSL_CTX_load_verify_locations: %s",
- ERR_error_string(ERR_get_error(), NULL));
- return;
+ bootstrap_ca_cert = false;
+ } else {
+ VLOG_ERR("failed to load client certificates from %s: %s",
+ file_name, ERR_error_string(ERR_get_error(), NULL));
}
-
- bootstrap_ca_cert = false;
}
ca_cert.read = true;
}
ds_put_format(&details, "type %d", content_type);
}
- VLOG_DBG("%s%u%s%s %s (%zu bytes)",
+ VLOG_DBG("%s%u%s%s %s (%"PRIuSIZE" bytes)",
sslv->type == CLIENT ? "client" : "server",
sslv->session_nr, write_p ? "-->" : "<--",
stream_get_name(&sslv->stream), ds_cstr(&details), len);
projects / cascardo / ovs.git / blobdiff