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-rw-r--r--camel/camel-tcp-stream-ssl.c706
1 files changed, 0 insertions, 706 deletions
diff --git a/camel/camel-tcp-stream-ssl.c b/camel/camel-tcp-stream-ssl.c
deleted file mode 100644
index a06fb93d1c..0000000000
--- a/camel/camel-tcp-stream-ssl.c
+++ /dev/null
@@ -1,706 +0,0 @@
-/* -*- 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.
- *
- */
-
-/* NOTE: This is the default implementation of CamelTcpStreamSSL,
- * used when the Mozilla NSS libraries are used. If you configured
- * OpenSSL support instead, then this file won't be compiled and
- * the CamelTcpStreamSSL implementation in camel-tcp-stream-openssl.c
- * will be used instead.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#ifdef HAVE_NSS
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <string.h>
-
-#include <nspr.h>
-#include <prio.h>
-#include <prerror.h>
-#include <prerr.h>
-#include "nss.h" /* Don't use <> here or it will include the system nss.h instead */
-#include <ssl.h>
-#include <cert.h>
-#include <certdb.h>
-#include <pk11func.h>
-
-/* this is commented because otherwise we get an error about the
- redefinition of MD5Context...yay */
-/*#include <e-util/md5-utils.h>*/
-
-#include "camel-tcp-stream-ssl.h"
-#include "camel-session.h"
-
-
-static CamelTcpStreamClass *parent_class = NULL;
-
-/* Returns the class for a CamelTcpStreamSSL */
-#define CTSS_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 PRFileDesc *enable_ssl (CamelTcpStreamSSL *ssl, PRFileDesc *fd);
-
-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);
-
-struct _CamelTcpStreamSSLPrivate {
- PRFileDesc *sockfd;
-
- 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;
-}
-
-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);
-}
-
-static void
-camel_tcp_stream_ssl_finalize (CamelObject *object)
-{
- CamelTcpStreamSSL *stream = CAMEL_TCP_STREAM_SSL (object);
-
- if (stream->priv->sockfd != NULL)
- PR_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 expected 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 expected 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 void
-set_errno (int code)
-{
- /* FIXME: this should handle more. */
- switch (code) {
- case PR_INVALID_ARGUMENT_ERROR:
- errno = EINVAL;
- break;
- case PR_PENDING_INTERRUPT_ERROR:
- errno = EINTR;
- break;
- case PR_IO_PENDING_ERROR:
- case PR_IO_TIMEOUT_ERROR:
- errno = EAGAIN;
- break;
- case PR_WOULD_BLOCK_ERROR:
- errno = EWOULDBLOCK;
- break;
- case PR_IN_PROGRESS_ERROR:
- errno = EINPROGRESS;
- break;
- case PR_ALREADY_INITIATED_ERROR:
- errno = EALREADY;
- break;
- case PR_NETWORK_UNREACHABLE_ERROR:
- errno = EHOSTUNREACH;
- break;
- case PR_CONNECT_REFUSED_ERROR:
- errno = ECONNREFUSED;
- break;
- case PR_CONNECT_TIMEOUT_ERROR:
- errno = ETIMEDOUT;
- break;
- case PR_NOT_CONNECTED_ERROR:
- errno = ENOTCONN;
- break;
- case PR_CONNECT_RESET_ERROR:
- errno = ECONNRESET;
- break;
- case PR_IO_ERROR:
- default:
- errno = EIO;
- break;
- }
-}
-
-
-/**
- * camel_tcp_stream_ssl_enable_ssl:
- * @ssl: 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 *ssl)
-{
- PRFileDesc *fd;
-
- g_return_val_if_fail (CAMEL_IS_TCP_STREAM_SSL (ssl), -1);
-
- if (ssl->priv->sockfd && !ssl->priv->ssl_mode) {
- fd = enable_ssl (ssl, NULL);
- if (fd == NULL) {
- int errnosave;
-
- set_errno (PR_GetError ());
- errnosave = errno;
- errno = errnosave;
-
- return -1;
- }
-
- SSL_ResetHandshake (fd, FALSE);
-
- ssl->priv->sockfd = fd;
- }
-
- ssl->priv->ssl_mode = TRUE;
-
- return 0;
-}
-
-
-static ssize_t
-stream_read (CamelStream *stream, char *buffer, size_t n)
-{
- CamelTcpStreamSSL *tcp_stream_ssl = CAMEL_TCP_STREAM_SSL (stream);
- ssize_t nread;
-
- do {
- if (camel_operation_cancel_check (NULL)) {
- errno = EINTR;
- return -1;
- }
-
- nread = PR_Read (tcp_stream_ssl->priv->sockfd, buffer, n);
- if (nread == -1)
- set_errno (PR_GetError ());
- } while (nread == -1 && (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK));
-
- return nread;
-}
-
-static ssize_t
-stream_write (CamelStream *stream, const char *buffer, size_t n)
-{
- CamelTcpStreamSSL *tcp_stream_ssl = CAMEL_TCP_STREAM_SSL (stream);
- ssize_t w, written = 0;
-
- do {
- if (camel_operation_cancel_check (NULL)) {
- errno = EINTR;
- return -1;
- }
-
- do {
- w = PR_Write (tcp_stream_ssl->priv->sockfd, buffer + written, n - written);
- if (w == -1)
- set_errno (PR_GetError ());
- } while (w == -1 && (errno == EINTR || errno == EAGAIN || errno == EWOULDBLOCK));
-
- if (w > 0)
- written += w;
- } while (w != -1 && written < n);
-
- return written;
-}
-
-static int
-stream_flush (CamelStream *stream)
-{
- return PR_Sync (((CamelTcpStreamSSL *)stream)->priv->sockfd);
-}
-
-static int
-stream_close (CamelStream *stream)
-{
- if (PR_Close (((CamelTcpStreamSSL *)stream)->priv->sockfd) == PR_FAILURE)
- return -1;
-
- ((CamelTcpStreamSSL *)stream)->priv->sockfd = NULL;
-
- return 0;
-}
-
-#if 0
-/* Since this is default implementation, let NSS handle it. */
-static SECStatus
-ssl_get_client_auth (void *data, PRFileDesc *sockfd,
- struct CERTDistNamesStr *caNames,
- struct CERTCertificateStr **pRetCert,
- struct SECKEYPrivateKeyStr **pRetKey)
-{
- SECStatus status = SECFailure;
- SECKEYPrivateKey *privkey;
- CERTCertificate *cert;
- void *proto_win;
-
- proto_win = SSL_RevealPinArg (sockfd);
-
- if ((char *) data) {
- cert = PK11_FindCertFromNickname ((char *) data, proto_win);
- if (cert) {
- privKey = PK11_FindKeyByAnyCert (cert, proto_win);
- if (privkey) {
- status = SECSuccess;
- } else {
- CERT_DestroyCertificate (cert);
- }
- }
- } else {
- /* no nickname given, automatically find the right cert */
- CERTCertNicknames *names;
- int i;
-
- names = CERT_GetCertNicknames (CERT_GetDefaultCertDB (),
- SEC_CERT_NICKNAMES_USER,
- proto_win);
-
- if (names != NULL) {
- for (i = 0; i < names->numnicknames; i++) {
- cert = PK11_FindCertFromNickname (names->nicknames[i],
- proto_win);
- if (!cert)
- continue;
-
- /* Only check unexpired certs */
- if (CERT_CheckCertValidTimes (cert, PR_Now (), PR_FALSE) != secCertTimeValid) {
- CERT_DestroyCertificate (cert);
- continue;
- }
-
- status = NSS_CmpCertChainWCANames (cert, caNames);
- if (status == SECSuccess) {
- privkey = PK11_FindKeyByAnyCert (cert, proto_win);
- if (privkey)
- break;
-
- status = SECFailure;
- break;
- }
-
- CERT_FreeNicknames (names);
- }
- }
- }
-
- if (status == SECSuccess) {
- *pRetCert = cert;
- *pRetKey = privkey;
- }
-
- return status;
-}
-#endif
-
-#if 0
-/* Since this is the default NSS implementation, no need for us to use this. */
-static SECStatus
-ssl_auth_cert (void *data, PRFileDesc *sockfd, PRBool checksig, PRBool is_server)
-{
- CERTCertificate *cert;
- SECStatus status;
- void *pinarg;
- char *host;
-
- cert = SSL_PeerCertificate (sockfd);
- pinarg = SSL_RevealPinArg (sockfd);
- status = CERT_VerifyCertNow ((CERTCertDBHandle *)data, cert,
- checksig, certUsageSSLClient, pinarg);
-
- if (status != SECSuccess)
- return SECFailure;
-
- /* Certificate is OK. Since this is the client side of an SSL
- * connection, we need to verify that the name field in the cert
- * matches the desired hostname. This is our defense against
- * man-in-the-middle attacks.
- */
-
- /* SSL_RevealURL returns a hostname, not a URL. */
- host = SSL_RevealURL (sockfd);
-
- if (host && *host) {
- status = CERT_VerifyCertName (cert, host);
- } else {
- PR_SetError (SSL_ERROR_BAD_CERT_DOMAIN, 0);
- status = SECFailure;
- }
-
- if (host)
- PR_Free (host);
-
- return secStatus;
-}
-#endif
-
-static SECStatus
-ssl_bad_cert (void *data, PRFileDesc *sockfd)
-{
- unsigned char md5sum[16], fingerprint[40], *f;
- gboolean accept, valid_cert;
- char *prompt, *cert_str;
- CamelTcpStreamSSL *ssl;
- CERTCertificate *cert;
- CamelService *service;
- int i;
-
- g_return_val_if_fail (data != NULL, SECFailure);
- g_return_val_if_fail (CAMEL_IS_TCP_STREAM_SSL (data), SECFailure);
-
- ssl = CAMEL_TCP_STREAM_SSL (data);
- service = ssl->priv->service;
-
- cert = SSL_PeerCertificate (sockfd);
-
- /* calculate the MD5 hash of the raw certificate */
- md5_get_digest (cert->derCert.data, cert->derCert.len, md5sum);
- /*HASH_HashBuf (HASH_AlgMD5, md5sum, cert->derCert.data, cert->derCert.len);*/
- for (i = 0, f = fingerprint; i < 16; i++, f += 3)
- sprintf (f, "%.2x%c", md5sum[i], i != 15 ? ':' : '\0');
-
- valid_cert = CERT_VerifyCertNow (CERT_GetDefaultCertDB (), cert, TRUE, certUsageSSLClient, NULL);
- /*issuer = CERT_FindCertByName (CERT_GetDefaultCertDB (), &cert->derIssuer);
- valid_cert = issuer && CERT_VerifySignedData (&cert->signatureWrap, issuer, PR_Now (), NULL);*/
-
- cert_str = g_strdup_printf (_("Issuer: %s\n"
- "Subject: %s\n"
- "Fingerprint: %s\n"
- "Signature: %s"),
- CERT_NameToAscii (&cert->issuer),
- CERT_NameToAscii (&cert->subject),
- fingerprint, valid_cert ? _("GOOD") : _("BAD"));
-
- /* construct our user prompt */
- prompt = g_strdup_printf (_("SSL Certificate check for %s:\n\n%s\n\nDo you wish to accept?"),
- service->url->host, cert_str);
- g_free (cert_str);
-
- /* query the user to find out if we want to accept this certificate */
- accept = camel_session_alert_user (service->session, CAMEL_SESSION_ALERT_WARNING, prompt, TRUE);
- g_free (prompt);
-
- if (accept) {
-#if 0
- /* this is how mutt does it but last time I tried to
- use CERT_AddTempCertToPerm() I got link errors and
- I have also been told by the nss devs that that
- function has been deprecated... */
- CERTCertTrust trust;
-
- CERT_DecodeTrustString (&trust, "P,,");
-
- CERT_AddTempCertToPerm (cert, NULL, &trust);
-#else
- SECItem *certs[1];
-
- if (!cert->trust)
- cert->trust = PORT_ZAlloc (sizeof (CERTCertTrust));
-
- cert->trust->sslFlags = CERTDB_VALID_PEER | CERTDB_TRUSTED;
-
- certs[0] = &cert->derCert;
-
- CERT_ImportCerts (CERT_GetDefaultCertDB (), certUsageSSLServer, 1, certs,
- NULL, TRUE, FALSE, cert->nickname);
-#endif
- return SECSuccess;
- }
-
- return SECFailure;
-}
-
-static PRFileDesc *
-enable_ssl (CamelTcpStreamSSL *ssl, PRFileDesc *fd)
-{
- PRFileDesc *ssl_fd;
-
- ssl_fd = SSL_ImportFD (NULL, fd ? fd : ssl->priv->sockfd);
- if (!ssl_fd)
- return NULL;
-
- SSL_OptionSet (ssl_fd, SSL_SECURITY, PR_TRUE);
- SSL_SetURL (ssl_fd, ssl->priv->expected_host);
-
- /*SSL_GetClientAuthDataHook (sslSocket, ssl_get_client_auth, (void *) certNickname);*/
- /*SSL_AuthCertificateHook (ssl_fd, ssl_auth_cert, (void *) CERT_GetDefaultCertDB ());*/
- SSL_BadCertHook (ssl_fd, ssl_bad_cert, ssl);
-
- ssl->priv->ssl_mode = TRUE;
-
- return ssl_fd;
-}
-
-static int
-stream_connect (CamelTcpStream *stream, struct hostent *host, int port)
-{
- CamelTcpStreamSSL *ssl = CAMEL_TCP_STREAM_SSL (stream);
- PRIntervalTime timeout = PR_INTERVAL_MIN;
- PRNetAddr netaddr;
- PRFileDesc *fd;
-
- g_return_val_if_fail (host != NULL, -1);
-
- memset ((void *) &netaddr, 0, sizeof (PRNetAddr));
- memcpy (&netaddr.inet.ip, host->h_addr, sizeof (netaddr.inet.ip));
-
- if (PR_InitializeNetAddr (PR_IpAddrNull, port, &netaddr) == PR_FAILURE) {
- set_errno (PR_GetError ());
- return -1;
- }
-
- fd = PR_OpenTCPSocket (host->h_addrtype);
- if (fd == NULL) {
- set_errno (PR_GetError ());
- return -1;
- }
-
- if (ssl->priv->ssl_mode) {
- PRFileDesc *ssl_fd;
-
- ssl_fd = enable_ssl (ssl, fd);
- if (ssl_fd == NULL) {
- int errnosave;
-
- set_errno (PR_GetError ());
- errnosave = errno;
- PR_Close (fd);
- errno = errnosave;
-
- return -1;
- }
-
- fd = ssl_fd;
- }
-
- if (PR_Connect (fd, &netaddr, timeout) == PR_FAILURE) {
- int errnosave;
-
- set_errno (PR_GetError ());
- if (errno == EINPROGRESS) {
- gboolean connected = FALSE;
- PRPollDesc poll;
-
- do {
- poll.fd = fd;
- poll.in_flags = PR_POLL_WRITE | PR_POLL_EXCEPT;
- poll.out_flags = 0;
-
- timeout = PR_INTERVAL_MIN;
-
- if (PR_Poll (&poll, 1, timeout) == PR_FAILURE) {
- set_errno (PR_GetError ());
- goto exception;
- }
-
- if (PR_GetConnectStatus (&poll) == PR_FAILURE) {
- set_errno (PR_GetError ());
- if (errno != EINPROGRESS)
- goto exception;
- } else {
- connected = TRUE;
- }
- } while (!connected);
- } else {
- exception:
- errnosave = errno;
- PR_Close (fd);
- ssl->priv->sockfd = NULL;
- errno = errnosave;
-
- return -1;
- }
-
- errno = 0;
- }
-
- ssl->priv->sockfd = fd;
-
- return 0;
-}
-
-
-static int
-stream_getsockopt (CamelTcpStream *stream, CamelSockOptData *data)
-{
- PRSocketOptionData sodata;
-
- memset ((void *) &sodata, 0, sizeof (sodata));
- memcpy ((void *) &sodata, (void *) data, sizeof (CamelSockOptData));
-
- if (PR_GetSocketOption (((CamelTcpStreamSSL *)stream)->priv->sockfd, &sodata) == PR_FAILURE)
- return -1;
-
- memcpy ((void *) data, (void *) &sodata, sizeof (CamelSockOptData));
-
- return 0;
-}
-
-static int
-stream_setsockopt (CamelTcpStream *stream, const CamelSockOptData *data)
-{
- PRSocketOptionData sodata;
-
- memset ((void *) &sodata, 0, sizeof (sodata));
- memcpy ((void *) &sodata, (void *) data, sizeof (CamelSockOptData));
-
- if (PR_SetSocketOption (((CamelTcpStreamSSL *)stream)->priv->sockfd, &sodata) == PR_FAILURE)
- return -1;
-
- return 0;
-}
-
-static CamelTcpAddress *
-stream_get_local_address (CamelTcpStream *stream)
-{
- PRFileDesc *sockfd = CAMEL_TCP_STREAM_SSL (stream)->priv->sockfd;
- PRNetAddr addr;
-
- PR_GetSockName (sockfd, &addr);
- if (addr.inet.family != PR_AF_INET)
- return NULL;
-
- return camel_tcp_address_new (CAMEL_TCP_ADDRESS_IPV4, addr.inet.port,
- 4, &addr.inet.ip);
-}
-
-static CamelTcpAddress *
-stream_get_remote_address (CamelTcpStream *stream)
-{
- PRFileDesc *sockfd = CAMEL_TCP_STREAM_SSL (stream)->priv->sockfd;
- PRNetAddr addr;
-
- PR_GetPeerName (sockfd, &addr);
- if (addr.inet.family != PR_AF_INET)
- return NULL;
-
- return camel_tcp_address_new (CAMEL_TCP_ADDRESS_IPV4, addr.inet.port,
- 4, &addr.inet.ip);
-}
-
-#endif /* HAVE_NSS */