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|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2001 Ximian, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_OPENSSL
#include "camel-tcp-stream-ssl.h"
#include <openssl/ssl.h>
#include <openssl/x509.h>
#include <openssl/err.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include "camel-session.h"
#include "camel-service.h"
#include "camel-operation.h"
#include "camel-certdb.h"
#ifdef ENABLE_THREADS
#include <pthread.h>
#endif
#define d(x)
#define TIMEOUT_USEC (10000)
static CamelTcpStreamClass *parent_class = NULL;
/* Returns the class for a CamelTcpStreamSSL */
#define CTSR_CLASS(so) CAMEL_TCP_STREAM_SSL_CLASS (CAMEL_OBJECT_GET_CLASS (so))
static ssize_t stream_read (CamelStream *stream, char *buffer, size_t n);
static ssize_t stream_write (CamelStream *stream, const char *buffer, size_t n);
static int stream_flush (CamelStream *stream);
static int stream_close (CamelStream *stream);
static int stream_connect (CamelTcpStream *stream, struct hostent *host, int port);
static int stream_getsockopt (CamelTcpStream *stream, CamelSockOptData *data);
static int stream_setsockopt (CamelTcpStream *stream, const CamelSockOptData *data);
static CamelTcpAddress *stream_get_local_address (CamelTcpStream *stream);
static CamelTcpAddress *stream_get_remote_address (CamelTcpStream *stream);
static SSL *open_ssl_connection (CamelService *service, int sockfd, CamelTcpStreamSSL *openssl);
struct _CamelTcpStreamSSLPrivate {
int sockfd;
SSL *ssl;
CamelService *service;
char *expected_host;
gboolean ssl_mode;
};
static void
camel_tcp_stream_ssl_class_init (CamelTcpStreamSSLClass *camel_tcp_stream_ssl_class)
{
CamelTcpStreamClass *camel_tcp_stream_class =
CAMEL_TCP_STREAM_CLASS (camel_tcp_stream_ssl_class);
CamelStreamClass *camel_stream_class =
CAMEL_STREAM_CLASS (camel_tcp_stream_ssl_class);
parent_class = CAMEL_TCP_STREAM_CLASS (camel_type_get_global_classfuncs (camel_tcp_stream_get_type ()));
/* virtual method overload */
camel_stream_class->read = stream_read;
camel_stream_class->write = stream_write;
camel_stream_class->flush = stream_flush;
camel_stream_class->close = stream_close;
camel_tcp_stream_class->connect = stream_connect;
camel_tcp_stream_class->getsockopt = stream_getsockopt;
camel_tcp_stream_class->setsockopt = stream_setsockopt;
camel_tcp_stream_class->get_local_address = stream_get_local_address;
camel_tcp_stream_class->get_remote_address = stream_get_remote_address;
/* init OpenSSL stuff */
SSLeay_add_ssl_algorithms ();
SSL_load_error_strings ();
}
static void
camel_tcp_stream_ssl_init (gpointer object, gpointer klass)
{
CamelTcpStreamSSL *stream = CAMEL_TCP_STREAM_SSL (object);
stream->priv = g_new0 (struct _CamelTcpStreamSSLPrivate, 1);
stream->priv->sockfd = -1;
}
static void
camel_tcp_stream_ssl_finalize (CamelObject *object)
{
CamelTcpStreamSSL *stream = CAMEL_TCP_STREAM_SSL (object);
if (stream->priv->ssl) {
SSL_shutdown (stream->priv->ssl);
if (stream->priv->ssl->ctx) {
SSL_CTX_free (stream->priv->ssl->ctx);
}
SSL_free (stream->priv->ssl);
}
if (stream->priv->sockfd != -1)
close (stream->priv->sockfd);
g_free (stream->priv->expected_host);
g_free (stream->priv);
}
CamelType
camel_tcp_stream_ssl_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
type = camel_type_register (camel_tcp_stream_get_type (),
"CamelTcpStreamSSL",
sizeof (CamelTcpStreamSSL),
sizeof (CamelTcpStreamSSLClass),
(CamelObjectClassInitFunc) camel_tcp_stream_ssl_class_init,
NULL,
(CamelObjectInitFunc) camel_tcp_stream_ssl_init,
(CamelObjectFinalizeFunc) camel_tcp_stream_ssl_finalize);
}
return type;
}
/**
* camel_tcp_stream_ssl_new:
* @service: camel service
* @expected_host: host that the stream is expecting to connect with.
*
* Since the SSL certificate authenticator may need to prompt the
* user, a CamelService is needed. @expected_host is needed as a
* protection against an MITM attack.
*
* Return value: a ssl stream (in ssl mode)
**/
CamelStream *
camel_tcp_stream_ssl_new (CamelService *service, const char *expected_host)
{
CamelTcpStreamSSL *stream;
stream = CAMEL_TCP_STREAM_SSL (camel_object_new (camel_tcp_stream_ssl_get_type ()));
stream->priv->service = service;
stream->priv->expected_host = g_strdup (expected_host);
stream->priv->ssl_mode = TRUE;
return CAMEL_STREAM (stream);
}
/**
* camel_tcp_stream_ssl_new_raw:
* @service: camel service
* @expected_host: host that the stream is expecting to connect with.
*
* Since the SSL certificate authenticator may need to prompt the
* user, a CamelService is needed. @expected_host is needed as a
* protection against an MITM attack.
*
* Return value: a ssl-capable stream (in non ssl mode)
**/
CamelStream *
camel_tcp_stream_ssl_new_raw (CamelService *service, const char *expected_host)
{
CamelTcpStreamSSL *stream;
stream = CAMEL_TCP_STREAM_SSL (camel_object_new (camel_tcp_stream_ssl_get_type ()));
stream->priv->service = service;
stream->priv->expected_host = g_strdup (expected_host);
stream->priv->ssl_mode = FALSE;
return CAMEL_STREAM (stream);
}
static int
ssl_errno (SSL *ssl, int ret)
{
switch (SSL_get_error (ssl, ret)) {
case SSL_ERROR_NONE:
return 0;
case SSL_ERROR_ZERO_RETURN:
/* this one does not map well at all */
d(printf ("ssl_errno: SSL_ERROR_ZERO_RETURN\n"));
return EINVAL;
case SSL_ERROR_WANT_READ: /* non-fatal; retry */
case SSL_ERROR_WANT_WRITE: /* non-fatal; retry */
d(printf ("ssl_errno: SSL_ERROR_WANT_[READ,WRITE]\n"));
return EAGAIN;
case SSL_ERROR_SYSCALL:
d(printf ("ssl_errno: SSL_ERROR_SYSCALL\n"));
return EINTR;
case SSL_ERROR_SSL:
d(printf ("ssl_errno: SSL_ERROR_SSL <-- very useful error...riiiiight\n"));
return EINTR;
default:
d(printf ("ssl_errno: default error\n"));
return EINTR;
}
}
/**
* camel_tcp_stream_ssl_enable_ssl:
* @stream: ssl stream
*
* Toggles an ssl-capable stream into ssl mode (if it isn't already).
*
* Returns 0 on success or -1 on fail.
**/
int
camel_tcp_stream_ssl_enable_ssl (CamelTcpStreamSSL *stream)
{
SSL *ssl;
g_return_val_if_fail (CAMEL_IS_TCP_STREAM_SSL (stream), -1);
if (stream->priv->sockfd != -1 && !stream->priv->ssl_mode) {
ssl = open_ssl_connection (stream->priv->service, stream->priv->sockfd, stream);
if (ssl == NULL) {
stream->priv->sockfd = -1;
return -1;
}
stream->priv->ssl = ssl;
}
stream->priv->ssl_mode = TRUE;
return 0;
}
static ssize_t
stream_read (CamelStream *stream, char *buffer, size_t n)
{
CamelTcpStreamSSL *openssl = CAMEL_TCP_STREAM_SSL (stream);
SSL *ssl = openssl->priv->ssl;
ssize_t nread;
int cancel_fd;
if (camel_operation_cancel_check (NULL)) {
errno = EINTR;
return -1;
}
cancel_fd = camel_operation_cancel_fd (NULL);
if (cancel_fd == -1) {
do {
if (ssl) {
nread = SSL_read (ssl, buffer, n);
if (nread < 0)
errno = ssl_errno (ssl, nread);
} else {
nread = read (openssl->priv->sockfd, buffer, n);
}
} while (nread < 0 && (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK));
} else {
int error, flags, fdmax;
struct timeval timeout;
fd_set rdset;
flags = fcntl (openssl->priv->sockfd, F_GETFL);
fcntl (openssl->priv->sockfd, F_SETFL, flags | O_NONBLOCK);
fdmax = MAX (openssl->priv->sockfd, cancel_fd) + 1;
do {
FD_ZERO (&rdset);
FD_SET (openssl->priv->sockfd, &rdset);
FD_SET (cancel_fd, &rdset);
timeout.tv_sec = 0;
timeout.tv_usec = TIMEOUT_USEC;
select (fdmax, &rdset, 0, 0, &timeout);
if (FD_ISSET (cancel_fd, &rdset)) {
fcntl (openssl->priv->sockfd, F_SETFL, flags);
errno = EINTR;
return -1;
}
do {
if (ssl) {
nread = SSL_read (ssl, buffer, n);
if (nread < 0)
errno = ssl_errno (ssl, nread);
} else {
nread = read (openssl->priv->sockfd, buffer, n);
}
} while (nread < 0 && errno == EINTR);
} while (nread < 0 && (errno == EAGAIN || errno == EWOULDBLOCK));
error = errno;
fcntl (openssl->priv->sockfd, F_SETFL, flags);
errno = error;
}
return nread;
}
static ssize_t
stream_write (CamelStream *stream, const char *buffer, size_t n)
{
CamelTcpStreamSSL *openssl = CAMEL_TCP_STREAM_SSL (stream);
SSL *ssl = openssl->priv->ssl;
ssize_t w, written = 0;
int cancel_fd;
if (camel_operation_cancel_check (NULL)) {
errno = EINTR;
return -1;
}
cancel_fd = camel_operation_cancel_fd (NULL);
if (cancel_fd == -1) {
do {
do {
if (ssl) {
w = SSL_write (ssl, buffer + written, n - written);
if (w < 0)
errno = ssl_errno (ssl, w);
} else {
w = write (openssl->priv->sockfd, buffer + written, n - written);
}
} while (w < 0 && (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK));
if (w > 0)
written += w;
} while (w != -1 && written < n);
} else {
int error, flags, fdmax;
struct timeval timeout;
fd_set rdset, wrset;
flags = fcntl (openssl->priv->sockfd, F_GETFL);
fcntl (openssl->priv->sockfd, F_SETFL, flags | O_NONBLOCK);
fdmax = MAX (openssl->priv->sockfd, cancel_fd) + 1;
do {
FD_ZERO (&rdset);
FD_ZERO (&wrset);
FD_SET (openssl->priv->sockfd, &wrset);
FD_SET (cancel_fd, &rdset);
timeout.tv_sec = 0;
timeout.tv_usec = TIMEOUT_USEC;
select (fdmax, &rdset, &wrset, 0, &timeout);
if (FD_ISSET (cancel_fd, &rdset)) {
fcntl (openssl->priv->sockfd, F_SETFL, flags);
errno = EINTR;
return -1;
}
do {
if (ssl) {
w = SSL_write (ssl, buffer + written, n - written);
if (w < 0)
errno = ssl_errno (ssl, w);
} else {
w = write (openssl->priv->sockfd, buffer + written, n - written);
}
} while (w < 0 && errno == EINTR);
if (w < 0) {
if (errno == EAGAIN || errno == EWOULDBLOCK) {
w = 0;
} else {
error = errno;
fcntl (openssl->priv->sockfd, F_SETFL, flags);
errno = error;
return -1;
}
} else
written += w;
} while (w >= 0 && written < n);
fcntl (openssl->priv->sockfd, F_SETFL, flags);
}
return written;
}
static int
stream_flush (CamelStream *stream)
{
return 0;
}
static void
close_ssl_connection (SSL *ssl)
{
if (ssl) {
SSL_shutdown (ssl);
if (ssl->ctx)
SSL_CTX_free (ssl->ctx);
SSL_free (ssl);
}
}
static int
stream_close (CamelStream *stream)
{
close_ssl_connection (((CamelTcpStreamSSL *)stream)->priv->ssl);
((CamelTcpStreamSSL *)stream)->priv->ssl = NULL;
if (close (((CamelTcpStreamSSL *)stream)->priv->sockfd) == -1)
return -1;
((CamelTcpStreamSSL *)stream)->priv->sockfd = -1;
return 0;
}
/* this is a 'cancellable' connect, cancellable from camel_operation_cancel etc */
/* returns -1 & errno == EINTR if the connection was cancelled */
static int
socket_connect (struct hostent *h, int port)
{
struct sockaddr_in sin;
int fd;
int ret;
socklen_t len;
struct timeval tv;
int cancel_fd;
/* see if we're cancelled yet */
if (camel_operation_cancel_check (NULL)) {
errno = EINTR;
return -1;
}
/* setup connect, we do it using a nonblocking socket so we can poll it */
sin.sin_port = htons (port);
sin.sin_family = h->h_addrtype;
memcpy (&sin.sin_addr, h->h_addr, sizeof (sin.sin_addr));
fd = socket (h->h_addrtype, SOCK_STREAM, 0);
cancel_fd = camel_operation_cancel_fd (NULL);
if (cancel_fd == -1) {
ret = connect (fd, (struct sockaddr *)&sin, sizeof (sin));
if (ret == -1) {
close (fd);
return -1;
}
return fd;
} else {
fd_set rdset, wrset;
int flags, fdmax;
flags = fcntl (fd, F_GETFL);
fcntl (fd, F_SETFL, flags | O_NONBLOCK);
ret = connect (fd, (struct sockaddr *)&sin, sizeof (sin));
if (ret == 0) {
fcntl (fd, F_SETFL, flags);
return fd;
}
if (errno != EINPROGRESS) {
close (fd);
return -1;
}
FD_ZERO (&rdset);
FD_ZERO (&wrset);
FD_SET (fd, &wrset);
FD_SET (cancel_fd, &rdset);
fdmax = MAX (fd, cancel_fd) + 1;
tv.tv_usec = 0;
tv.tv_sec = 60 * 4;
if (select (fdmax, &rdset, &wrset, 0, &tv) == 0) {
close (fd);
errno = ETIMEDOUT;
return -1;
}
if (cancel_fd != -1 && FD_ISSET (cancel_fd, &rdset)) {
close (fd);
errno = EINTR;
return -1;
} else {
len = sizeof (int);
if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &len) == -1) {
close (fd);
return -1;
}
if (ret != 0) {
close (fd);
errno = ret;
return -1;
}
}
fcntl (fd, F_SETFL, flags);
}
return fd;
}
static const char *
x509_strerror (int err)
{
switch (err) {
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
return _("Unable to get issuer's certificate");
case X509_V_ERR_UNABLE_TO_GET_CRL:
return _("Unable to get Certificate Revocation List");
case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
return _("Unable to decrypt certificate signature");
case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
return _("Unable to decrypt Certificate Revocation List signature");
case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
return _("Unable to decode issuer's public key");
case X509_V_ERR_CERT_SIGNATURE_FAILURE:
return _("Certificate signature failure");
case X509_V_ERR_CRL_SIGNATURE_FAILURE:
return _("Certificate Revocation List signature failure");
case X509_V_ERR_CERT_NOT_YET_VALID:
return _("Certificate not yet valid");
case X509_V_ERR_CERT_HAS_EXPIRED:
return _("Certificate has expired");
case X509_V_ERR_CRL_NOT_YET_VALID:
return _("CRL not yet valid");
case X509_V_ERR_CRL_HAS_EXPIRED:
return _("CRL has expired");
case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
return _("Error in CRL");
case X509_V_ERR_OUT_OF_MEM:
return _("Out of memory");
case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
return _("Zero-depth self-signed certificate");
case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
return _("Self-signed certificate in chain");
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
return _("Unable to get issuer's certificate locally");
case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
return _("Unable to verify leaf signature");
case X509_V_ERR_CERT_CHAIN_TOO_LONG:
return _("Certificate chain too long");
case X509_V_ERR_CERT_REVOKED:
return _("Certificate Revoked");
case X509_V_ERR_INVALID_CA:
return _("Invalid Certificate Authority (CA)");
case X509_V_ERR_PATH_LENGTH_EXCEEDED:
return _("Path length exceeded");
case X509_V_ERR_INVALID_PURPOSE:
return _("Invalid purpose");
case X509_V_ERR_CERT_UNTRUSTED:
return _("Certificate untrusted");
case X509_V_ERR_CERT_REJECTED:
return _("Certificate rejected");
/* These are 'informational' when looking for issuer cert */
case X509_V_ERR_SUBJECT_ISSUER_MISMATCH:
return _("Subject/Issuer mismatch");
case X509_V_ERR_AKID_SKID_MISMATCH:
return _("AKID/SKID mismatch");
case X509_V_ERR_AKID_ISSUER_SERIAL_MISMATCH:
return _("AKID/Issuer serial mismatch");
case X509_V_ERR_KEYUSAGE_NO_CERTSIGN:
return _("Key usage does not support certificate signing");
/* The application is not happy */
case X509_V_ERR_APPLICATION_VERIFICATION:
return _("Error in application verification");
default:
return _("Unknown");
}
}
static int
ssl_verify (int ok, X509_STORE_CTX *ctx)
{
unsigned char md5sum[16], fingerprint[40], *f;
CamelTcpStreamSSL *stream;
CamelService *service;
CamelCertDB *certdb = NULL;
CamelCert *ccert = NULL;
char *prompt, *cert_str;
int err, md5len, i;
char buf[257];
X509 *cert;
SSL *ssl;
if (ok)
return TRUE;
ssl = X509_STORE_CTX_get_ex_data (ctx, SSL_get_ex_data_X509_STORE_CTX_idx ());
stream = SSL_CTX_get_app_data (ssl->ctx);
if (!stream)
return FALSE;
service = stream->priv->service;
cert = X509_STORE_CTX_get_current_cert (ctx);
err = X509_STORE_CTX_get_error (ctx);
/* calculate the MD5 hash of the raw certificate */
md5len = sizeof (md5sum);
X509_digest (cert, EVP_md5 (), md5sum, &md5len);
for (i = 0, f = fingerprint; i < 16; i++, f += 3)
sprintf (f, "%.2x%c", md5sum[i], i != 15 ? ':' : '\0');
#define GET_STRING(name) X509_NAME_oneline (name, buf, 256)
certdb = camel_certdb_get_default ();
if (certdb) {
ccert = camel_certdb_get_cert (certdb, fingerprint);
if (ccert) {
if (ccert->trust != CAMEL_CERT_TRUST_UNKNOWN) {
ok = ccert->trust != CAMEL_CERT_TRUST_NEVER;
camel_certdb_cert_unref (certdb, ccert);
camel_object_unref (certdb);
return ok;
}
} else {
/* create a new camel-cert */
ccert = camel_certdb_cert_new (certdb);
camel_cert_set_issuer (certdb, ccert, GET_STRING (X509_get_issuer_name (cert)));
camel_cert_set_subject (certdb, ccert, GET_STRING (X509_get_subject_name (cert)));
camel_cert_set_hostname (certdb, ccert, stream->priv->expected_host);
camel_cert_set_fingerprint (certdb, ccert, fingerprint);
camel_cert_set_trust (certdb, ccert, CAMEL_CERT_TRUST_UNKNOWN);
/* Add the certificate to our db */
camel_certdb_add (certdb, ccert);
}
}
cert_str = g_strdup_printf (_("Issuer: %s\n"
"Subject: %s\n"
"Fingerprint: %s\n"
"Signature: %s"),
GET_STRING (X509_get_issuer_name (cert)),
GET_STRING (X509_get_subject_name (cert)),
fingerprint, cert->valid ? _("GOOD") : _("BAD"));
prompt = g_strdup_printf (_("Bad certificate from %s:\n\n%s\n\n%s\n\n"
"Do you wish to accept anyway?"),
service->url->host, cert_str, x509_strerror (err));
ok = camel_session_alert_user (service->session, CAMEL_SESSION_ALERT_WARNING, prompt, TRUE);
g_free (prompt);
if (ok && ccert) {
camel_cert_set_trust (certdb, ccert, CAMEL_CERT_TRUST_FULLY);
camel_certdb_touch (certdb);
}
if (certdb) {
camel_certdb_cert_unref (certdb, ccert);
camel_object_unref (certdb);
}
return ok;
}
static SSL *
open_ssl_connection (CamelService *service, int sockfd, CamelTcpStreamSSL *openssl)
{
SSL_CTX *ssl_ctx = NULL;
SSL *ssl = NULL;
int n;
/* SSLv23_client_method will negotiate with SSL v2, v3, or TLS v1 */
ssl_ctx = SSL_CTX_new (SSLv23_client_method ());
g_return_val_if_fail (ssl_ctx != NULL, NULL);
SSL_CTX_set_verify (ssl_ctx, SSL_VERIFY_PEER, &ssl_verify);
ssl = SSL_new (ssl_ctx);
SSL_set_fd (ssl, sockfd);
SSL_CTX_set_app_data (ssl_ctx, openssl);
n = SSL_connect (ssl);
if (n != 1) {
int errnosave = ssl_errno (ssl, n);
SSL_shutdown (ssl);
if (ssl->ctx)
SSL_CTX_free (ssl->ctx);
SSL_free (ssl);
ssl = NULL;
close (sockfd);
errno = errnosave;
}
return ssl;
}
static int
stream_connect (CamelTcpStream *stream, struct hostent *host, int port)
{
CamelTcpStreamSSL *openssl = CAMEL_TCP_STREAM_SSL (stream);
SSL *ssl = NULL;
int fd;
g_return_val_if_fail (host != NULL, -1);
fd = socket_connect (host, port);
if (fd == -1)
return -1;
if (openssl->priv->ssl_mode) {
ssl = open_ssl_connection (openssl->priv->service, fd, openssl);
if (!ssl)
return -1;
}
openssl->priv->sockfd = fd;
openssl->priv->ssl = ssl;
return 0;
}
static int
get_sockopt_level (const CamelSockOptData *data)
{
switch (data->option) {
case CAMEL_SOCKOPT_MAXSEGMENT:
case CAMEL_SOCKOPT_NODELAY:
return IPPROTO_TCP;
default:
return SOL_SOCKET;
}
}
static int
get_sockopt_optname (const CamelSockOptData *data)
{
switch (data->option) {
case CAMEL_SOCKOPT_MAXSEGMENT:
return TCP_MAXSEG;
case CAMEL_SOCKOPT_NODELAY:
return TCP_NODELAY;
case CAMEL_SOCKOPT_BROADCAST:
return SO_BROADCAST;
case CAMEL_SOCKOPT_KEEPALIVE:
return SO_KEEPALIVE;
case CAMEL_SOCKOPT_LINGER:
return SO_LINGER;
case CAMEL_SOCKOPT_RECVBUFFERSIZE:
return SO_RCVBUF;
case CAMEL_SOCKOPT_SENDBUFFERSIZE:
return SO_SNDBUF;
case CAMEL_SOCKOPT_REUSEADDR:
return SO_REUSEADDR;
case CAMEL_SOCKOPT_IPTYPEOFSERVICE:
return SO_TYPE;
default:
return -1;
}
}
static int
stream_getsockopt (CamelTcpStream *stream, CamelSockOptData *data)
{
int optname, optlen;
if ((optname = get_sockopt_optname (data)) == -1)
return -1;
if (data->option == CAMEL_SOCKOPT_NONBLOCKING) {
int flags;
flags = fcntl (((CamelTcpStreamSSL *)stream)->priv->sockfd, F_GETFL);
if (flags == -1)
return -1;
data->value.non_blocking = flags & O_NONBLOCK;
return 0;
}
return getsockopt (((CamelTcpStreamSSL *)stream)->priv->sockfd,
get_sockopt_level (data),
optname,
(void *) &data->value,
&optlen);
}
static int
stream_setsockopt (CamelTcpStream *stream, const CamelSockOptData *data)
{
int optname;
if ((optname = get_sockopt_optname (data)) == -1)
return -1;
if (data->option == CAMEL_SOCKOPT_NONBLOCKING) {
int flags, set;
flags = fcntl (((CamelTcpStreamSSL *)stream)->priv->sockfd, F_GETFL);
if (flags == -1)
return -1;
set = data->value.non_blocking ? 1 : 0;
flags = (flags & ~O_NONBLOCK) | (set & O_NONBLOCK);
if (fcntl (((CamelTcpStreamSSL *)stream)->priv->sockfd, F_SETFL, flags) == -1)
return -1;
return 0;
}
return setsockopt (((CamelTcpStreamSSL *)stream)->priv->sockfd,
get_sockopt_level (data),
optname,
(void *) &data->value,
sizeof (data->value));
}
static CamelTcpAddress *
stream_get_local_address (CamelTcpStream *stream)
{
struct sockaddr_in sin;
socklen_t len;
if (getsockname (CAMEL_TCP_STREAM_SSL (stream)->priv->sockfd,
(struct sockaddr *)&sin, &len) == -1)
return NULL;
return camel_tcp_address_new (CAMEL_TCP_ADDRESS_IPV4, sin.sin_port,
4, &sin.sin_addr);
}
static CamelTcpAddress *
stream_get_remote_address (CamelTcpStream *stream)
{
struct sockaddr_in sin;
socklen_t len;
if (getpeername (CAMEL_TCP_STREAM_SSL (stream)->priv->sockfd,
(struct sockaddr *)&sin, &len) == -1)
return NULL;
return camel_tcp_address_new (CAMEL_TCP_ADDRESS_IPV4, sin.sin_port,
4, &sin.sin_addr);
}
#endif /* HAVE_OPENSSL */
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