mirror of
https://github.com/moparisthebest/curl
synced 2024-12-23 00:28:48 -05:00
6085ca2aed
Calls to failf() are not supposed to provide trailing newline. Calls to infof() must provide trailing newline. Fixed 30 or so strings.
581 lines
16 KiB
C
581 lines
16 KiB
C
/***************************************************************************
|
|
* _ _ ____ _
|
|
* Project ___| | | | _ \| |
|
|
* / __| | | | |_) | |
|
|
* | (__| |_| | _ <| |___
|
|
* \___|\___/|_| \_\_____|
|
|
*
|
|
* Copyright (C) 2010, 2011, Hoi-Ho Chan, <hoiho.chan@gmail.com>
|
|
* Copyright (C) 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
|
|
*
|
|
* This software is licensed as described in the file COPYING, which
|
|
* you should have received as part of this distribution. The terms
|
|
* are also available at http://curl.haxx.se/docs/copyright.html.
|
|
*
|
|
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
|
|
* copies of the Software, and permit persons to whom the Software is
|
|
* furnished to do so, under the terms of the COPYING file.
|
|
*
|
|
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
|
* KIND, either express or implied.
|
|
*
|
|
***************************************************************************/
|
|
|
|
/*
|
|
* Source file for all PolarSSL-specific code for the TLS/SSL layer. No code
|
|
* but sslgen.c should ever call or use these functions.
|
|
*
|
|
*/
|
|
|
|
#include "setup.h"
|
|
|
|
#ifdef USE_POLARSSL
|
|
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
#include <sys/socket.h>
|
|
#endif
|
|
|
|
#include <polarssl/net.h>
|
|
#include <polarssl/ssl.h>
|
|
#include <polarssl/havege.h>
|
|
#include <polarssl/certs.h>
|
|
#include <polarssl/x509.h>
|
|
#include <polarssl/version.h>
|
|
|
|
#include <polarssl/entropy.h>
|
|
#include <polarssl/ctr_drbg.h>
|
|
|
|
#if POLARSSL_VERSION_NUMBER<0x01000000
|
|
/*
|
|
Earlier versions of polarssl had no WANT_READ or WANT_WRITE, only TRY_AGAIN
|
|
*/
|
|
#define POLARSSL_ERR_NET_WANT_READ POLARSSL_ERR_NET_TRY_AGAIN
|
|
#define POLARSSL_ERR_NET_WANT_WRITE POLARSSL_ERR_NET_TRY_AGAIN
|
|
#endif
|
|
|
|
#include "urldata.h"
|
|
#include "sendf.h"
|
|
#include "inet_pton.h"
|
|
#include "polarssl.h"
|
|
#include "sslgen.h"
|
|
#include "parsedate.h"
|
|
#include "connect.h" /* for the connect timeout */
|
|
#include "select.h"
|
|
#include "rawstr.h"
|
|
|
|
#define _MPRINTF_REPLACE /* use our functions only */
|
|
#include <curl/mprintf.h>
|
|
#include "curl_memory.h"
|
|
/* The last #include file should be: */
|
|
#include "memdebug.h"
|
|
|
|
/* version dependent differences */
|
|
#if POLARSSL_VERSION_NUMBER < 0x01010000
|
|
/* the old way */
|
|
#define HAVEGE_RANDOM havege_rand
|
|
#else
|
|
/* from 1.1.0 */
|
|
#define HAVEGE_RANDOM havege_random
|
|
#endif
|
|
|
|
/* Define this to enable lots of debugging for PolarSSL */
|
|
#undef POLARSSL_DEBUG
|
|
|
|
#ifdef POLARSSL_DEBUG
|
|
static void polarssl_debug(void *context, int level, char *line)
|
|
{
|
|
struct SessionHandle *data = NULL;
|
|
|
|
if(!context)
|
|
return;
|
|
|
|
data = (struct SessionHandle *)context;
|
|
|
|
infof(data, "%s\n", line);
|
|
}
|
|
#else
|
|
#endif
|
|
|
|
static Curl_recv polarssl_recv;
|
|
static Curl_send polarssl_send;
|
|
|
|
|
|
static CURLcode
|
|
polarssl_connect_step1(struct connectdata *conn,
|
|
int sockindex)
|
|
{
|
|
struct SessionHandle *data = conn->data;
|
|
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
|
|
|
|
bool sni = TRUE; /* default is SNI enabled */
|
|
int ret = -1;
|
|
#ifdef ENABLE_IPV6
|
|
struct in6_addr addr;
|
|
#else
|
|
struct in_addr addr;
|
|
#endif
|
|
void *old_session = NULL;
|
|
size_t old_session_size = 0;
|
|
|
|
/* PolarSSL only supports SSLv3 and TLSv1 */
|
|
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
|
|
failf(data, "PolarSSL does not support SSLv2");
|
|
return CURLE_SSL_CONNECT_ERROR;
|
|
}
|
|
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
|
|
sni = FALSE; /* SSLv3 has no SNI */
|
|
|
|
havege_init(&connssl->hs);
|
|
|
|
/* Load the trusted CA */
|
|
memset(&connssl->cacert, 0, sizeof(x509_cert));
|
|
|
|
if(data->set.str[STRING_SSL_CAFILE]) {
|
|
ret = x509parse_crtfile(&connssl->cacert,
|
|
data->set.str[STRING_SSL_CAFILE]);
|
|
|
|
if(ret<0) {
|
|
failf(data, "Error reading ca cert file %s: -0x%04X",
|
|
data->set.str[STRING_SSL_CAFILE], ret);
|
|
|
|
if(data->set.ssl.verifypeer)
|
|
return CURLE_SSL_CACERT_BADFILE;
|
|
}
|
|
}
|
|
|
|
/* Load the client certificate */
|
|
memset(&connssl->clicert, 0, sizeof(x509_cert));
|
|
|
|
if(data->set.str[STRING_CERT]) {
|
|
ret = x509parse_crtfile(&connssl->clicert,
|
|
data->set.str[STRING_CERT]);
|
|
|
|
if(ret) {
|
|
failf(data, "Error reading client cert file %s: -0x%04X",
|
|
data->set.str[STRING_CERT], -ret);
|
|
return CURLE_SSL_CERTPROBLEM;
|
|
}
|
|
}
|
|
|
|
/* Load the client private key */
|
|
if(data->set.str[STRING_KEY]) {
|
|
ret = x509parse_keyfile(&connssl->rsa,
|
|
data->set.str[STRING_KEY],
|
|
data->set.str[STRING_KEY_PASSWD]);
|
|
|
|
if(ret) {
|
|
failf(data, "Error reading private key %s: -0x%04X",
|
|
data->set.str[STRING_KEY], -ret);
|
|
return CURLE_SSL_CERTPROBLEM;
|
|
}
|
|
}
|
|
|
|
/* Load the CRL */
|
|
memset(&connssl->crl, 0, sizeof(x509_crl));
|
|
|
|
if(data->set.str[STRING_SSL_CRLFILE]) {
|
|
ret = x509parse_crlfile(&connssl->crl,
|
|
data->set.str[STRING_SSL_CRLFILE]);
|
|
|
|
if(ret) {
|
|
failf(data, "Error reading CRL file %s: -0x%04X",
|
|
data->set.str[STRING_SSL_CRLFILE], -ret);
|
|
return CURLE_SSL_CRL_BADFILE;
|
|
}
|
|
}
|
|
|
|
infof(data, "PolarSSL: Connecting to %s:%d\n",
|
|
conn->host.name, conn->remote_port);
|
|
|
|
if(ssl_init(&connssl->ssl)) {
|
|
failf(data, "PolarSSL: ssl_init failed");
|
|
return CURLE_SSL_CONNECT_ERROR;
|
|
}
|
|
|
|
ssl_set_endpoint(&connssl->ssl, SSL_IS_CLIENT);
|
|
ssl_set_authmode(&connssl->ssl, SSL_VERIFY_OPTIONAL);
|
|
|
|
ssl_set_rng(&connssl->ssl, HAVEGE_RANDOM,
|
|
&connssl->hs);
|
|
ssl_set_bio(&connssl->ssl,
|
|
net_recv, &conn->sock[sockindex],
|
|
net_send, &conn->sock[sockindex]);
|
|
|
|
|
|
#if POLARSSL_VERSION_NUMBER<0x01000000
|
|
ssl_set_ciphers(&connssl->ssl, ssl_default_ciphers);
|
|
#else
|
|
ssl_set_ciphersuites(&connssl->ssl, ssl_default_ciphersuites);
|
|
#endif
|
|
if(!Curl_ssl_getsessionid(conn, &old_session, &old_session_size)) {
|
|
memcpy(&connssl->ssn, old_session, old_session_size);
|
|
infof(data, "PolarSSL re-using session\n");
|
|
}
|
|
|
|
ssl_set_session(&connssl->ssl, 1, 600,
|
|
&connssl->ssn);
|
|
|
|
ssl_set_ca_chain(&connssl->ssl,
|
|
&connssl->cacert,
|
|
&connssl->crl,
|
|
conn->host.name);
|
|
|
|
ssl_set_own_cert(&connssl->ssl,
|
|
&connssl->clicert, &connssl->rsa);
|
|
|
|
if(!Curl_inet_pton(AF_INET, conn->host.name, &addr) &&
|
|
#ifdef ENABLE_IPV6
|
|
!Curl_inet_pton(AF_INET6, conn->host.name, &addr) &&
|
|
#endif
|
|
sni && ssl_set_hostname(&connssl->ssl, conn->host.name)) {
|
|
infof(data, "WARNING: failed to configure "
|
|
"server name indication (SNI) TLS extension\n");
|
|
}
|
|
|
|
#ifdef POLARSSL_DEBUG
|
|
ssl_set_dbg(&connssl->ssl, polarssl_debug, data);
|
|
#endif
|
|
|
|
connssl->connecting_state = ssl_connect_2;
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
static CURLcode
|
|
polarssl_connect_step2(struct connectdata *conn,
|
|
int sockindex)
|
|
{
|
|
int ret;
|
|
struct SessionHandle *data = conn->data;
|
|
struct ssl_connect_data* connssl = &conn->ssl[sockindex];
|
|
char buffer[1024];
|
|
|
|
conn->recv[sockindex] = polarssl_recv;
|
|
conn->send[sockindex] = polarssl_send;
|
|
|
|
for(;;) {
|
|
if(!(ret = ssl_handshake(&connssl->ssl)))
|
|
break;
|
|
else if(ret != POLARSSL_ERR_NET_WANT_READ &&
|
|
ret != POLARSSL_ERR_NET_WANT_WRITE) {
|
|
failf(data, "ssl_handshake returned -0x%04X", -ret);
|
|
return CURLE_SSL_CONNECT_ERROR;
|
|
}
|
|
else {
|
|
if(ret == POLARSSL_ERR_NET_WANT_READ) {
|
|
connssl->connecting_state = ssl_connect_2_reading;
|
|
return CURLE_OK;
|
|
}
|
|
if(ret == POLARSSL_ERR_NET_WANT_WRITE) {
|
|
connssl->connecting_state = ssl_connect_2_writing;
|
|
return CURLE_OK;
|
|
}
|
|
failf(data, "SSL_connect failed with error %d.", ret);
|
|
return CURLE_SSL_CONNECT_ERROR;
|
|
|
|
}
|
|
}
|
|
|
|
infof(data, "PolarSSL: Handshake complete, cipher is %s\n",
|
|
#if POLARSSL_VERSION_NUMBER<0x01000000
|
|
ssl_get_cipher(&conn->ssl[sockindex].ssl)
|
|
#elif POLARSSL_VERSION_NUMBER >= 0x01010000
|
|
ssl_get_ciphersuite(&conn->ssl[sockindex].ssl)
|
|
#else
|
|
ssl_get_ciphersuite_name(&conn->ssl[sockindex].ssl)
|
|
#endif
|
|
);
|
|
|
|
ret = ssl_get_verify_result(&conn->ssl[sockindex].ssl);
|
|
|
|
if(ret && data->set.ssl.verifypeer) {
|
|
if(ret & BADCERT_EXPIRED)
|
|
failf(data, "Cert verify failed: BADCERT_EXPIRED");
|
|
|
|
if(ret & BADCERT_REVOKED) {
|
|
failf(data, "Cert verify failed: BADCERT_REVOKED");
|
|
return CURLE_SSL_CACERT;
|
|
}
|
|
|
|
if(ret & BADCERT_CN_MISMATCH)
|
|
failf(data, "Cert verify failed: BADCERT_CN_MISMATCH");
|
|
|
|
if(ret & BADCERT_NOT_TRUSTED)
|
|
failf(data, "Cert verify failed: BADCERT_NOT_TRUSTED");
|
|
|
|
return CURLE_PEER_FAILED_VERIFICATION;
|
|
}
|
|
|
|
if(conn->ssl[sockindex].ssl.peer_cert) {
|
|
/* If the session was resumed, there will be no peer certs */
|
|
memset(buffer, 0, sizeof(buffer));
|
|
|
|
if(x509parse_cert_info(buffer, sizeof(buffer), (char *)"* ",
|
|
conn->ssl[sockindex].ssl.peer_cert) != -1)
|
|
infof(data, "Dumping cert info:\n%s\n", buffer);
|
|
}
|
|
|
|
connssl->connecting_state = ssl_connect_3;
|
|
infof(data, "SSL connected\n");
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
static CURLcode
|
|
polarssl_connect_step3(struct connectdata *conn,
|
|
int sockindex)
|
|
{
|
|
CURLcode retcode = CURLE_OK;
|
|
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
|
struct SessionHandle *data = conn->data;
|
|
void *old_ssl_sessionid = NULL;
|
|
ssl_session *our_ssl_sessionid = &conn->ssl[sockindex].ssn ;
|
|
int incache;
|
|
|
|
DEBUGASSERT(ssl_connect_3 == connssl->connecting_state);
|
|
|
|
/* Save the current session data for possible re-use */
|
|
incache = !(Curl_ssl_getsessionid(conn, &old_ssl_sessionid, NULL));
|
|
if(incache) {
|
|
if(old_ssl_sessionid != our_ssl_sessionid) {
|
|
infof(data, "old SSL session ID is stale, removing\n");
|
|
Curl_ssl_delsessionid(conn, old_ssl_sessionid);
|
|
incache = FALSE;
|
|
}
|
|
}
|
|
if(!incache) {
|
|
void *new_session = malloc(sizeof(ssl_session));
|
|
|
|
if(new_session) {
|
|
memcpy(new_session, our_ssl_sessionid,
|
|
sizeof(ssl_session));
|
|
|
|
retcode = Curl_ssl_addsessionid(conn, new_session,
|
|
sizeof(ssl_session));
|
|
}
|
|
else {
|
|
retcode = CURLE_OUT_OF_MEMORY;
|
|
}
|
|
|
|
if(retcode) {
|
|
failf(data, "failed to store ssl session");
|
|
return retcode;
|
|
}
|
|
}
|
|
|
|
connssl->connecting_state = ssl_connect_done;
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
static ssize_t polarssl_send(struct connectdata *conn,
|
|
int sockindex,
|
|
const void *mem,
|
|
size_t len,
|
|
CURLcode *curlcode)
|
|
{
|
|
int ret = -1;
|
|
|
|
ret = ssl_write(&conn->ssl[sockindex].ssl,
|
|
(unsigned char *)mem, len);
|
|
|
|
if(ret < 0) {
|
|
*curlcode = (ret == POLARSSL_ERR_NET_WANT_WRITE) ?
|
|
CURLE_AGAIN : CURLE_SEND_ERROR;
|
|
ret = -1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void Curl_polarssl_close_all(struct SessionHandle *data)
|
|
{
|
|
(void)data;
|
|
}
|
|
|
|
void Curl_polarssl_close(struct connectdata *conn, int sockindex)
|
|
{
|
|
rsa_free(&conn->ssl[sockindex].rsa);
|
|
x509_free(&conn->ssl[sockindex].clicert);
|
|
x509_free(&conn->ssl[sockindex].cacert);
|
|
x509_crl_free(&conn->ssl[sockindex].crl);
|
|
ssl_free(&conn->ssl[sockindex].ssl);
|
|
}
|
|
|
|
static ssize_t polarssl_recv(struct connectdata *conn,
|
|
int num,
|
|
char *buf,
|
|
size_t buffersize,
|
|
CURLcode *curlcode)
|
|
{
|
|
int ret = -1;
|
|
ssize_t len = -1;
|
|
|
|
memset(buf, 0, buffersize);
|
|
ret = ssl_read(&conn->ssl[num].ssl, (unsigned char *)buf, buffersize);
|
|
|
|
if(ret <= 0) {
|
|
if(ret == POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY)
|
|
return 0;
|
|
|
|
*curlcode = (ret == POLARSSL_ERR_NET_WANT_READ) ?
|
|
CURLE_AGAIN : CURLE_RECV_ERROR;
|
|
return -1;
|
|
}
|
|
|
|
len = ret;
|
|
|
|
return len;
|
|
}
|
|
|
|
void Curl_polarssl_session_free(void *ptr)
|
|
{
|
|
free(ptr);
|
|
}
|
|
|
|
size_t Curl_polarssl_version(char *buffer, size_t size)
|
|
{
|
|
unsigned int version = version_get_number();
|
|
return snprintf(buffer, size, "PolarSSL/%d.%d.%d", version>>24,
|
|
(version>>16)&0xff, (version>>8)&0xff);
|
|
}
|
|
|
|
static CURLcode
|
|
polarssl_connect_common(struct connectdata *conn,
|
|
int sockindex,
|
|
bool nonblocking,
|
|
bool *done)
|
|
{
|
|
CURLcode retcode;
|
|
struct SessionHandle *data = conn->data;
|
|
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
|
|
curl_socket_t sockfd = conn->sock[sockindex];
|
|
long timeout_ms;
|
|
int what;
|
|
|
|
/* check if the connection has already been established */
|
|
if(ssl_connection_complete == connssl->state) {
|
|
*done = TRUE;
|
|
return CURLE_OK;
|
|
}
|
|
|
|
if(ssl_connect_1==connssl->connecting_state) {
|
|
/* Find out how much more time we're allowed */
|
|
timeout_ms = Curl_timeleft(data, NULL, TRUE);
|
|
|
|
if(timeout_ms < 0) {
|
|
/* no need to continue if time already is up */
|
|
failf(data, "SSL connection timeout");
|
|
return CURLE_OPERATION_TIMEDOUT;
|
|
}
|
|
retcode = polarssl_connect_step1(conn, sockindex);
|
|
if(retcode)
|
|
return retcode;
|
|
}
|
|
|
|
while(ssl_connect_2 == connssl->connecting_state ||
|
|
ssl_connect_2_reading == connssl->connecting_state ||
|
|
ssl_connect_2_writing == connssl->connecting_state) {
|
|
|
|
/* check allowed time left */
|
|
timeout_ms = Curl_timeleft(data, NULL, TRUE);
|
|
|
|
if(timeout_ms < 0) {
|
|
/* no need to continue if time already is up */
|
|
failf(data, "SSL connection timeout");
|
|
return CURLE_OPERATION_TIMEDOUT;
|
|
}
|
|
|
|
/* if ssl is expecting something, check if it's available. */
|
|
if(connssl->connecting_state == ssl_connect_2_reading
|
|
|| connssl->connecting_state == ssl_connect_2_writing) {
|
|
|
|
curl_socket_t writefd = ssl_connect_2_writing==
|
|
connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
|
|
curl_socket_t readfd = ssl_connect_2_reading==
|
|
connssl->connecting_state?sockfd:CURL_SOCKET_BAD;
|
|
|
|
what = Curl_socket_ready(readfd, writefd, nonblocking?0:timeout_ms);
|
|
if(what < 0) {
|
|
/* fatal error */
|
|
failf(data, "select/poll on SSL socket, errno: %d", SOCKERRNO);
|
|
return CURLE_SSL_CONNECT_ERROR;
|
|
}
|
|
else if(0 == what) {
|
|
if(nonblocking) {
|
|
*done = FALSE;
|
|
return CURLE_OK;
|
|
}
|
|
else {
|
|
/* timeout */
|
|
failf(data, "SSL connection timeout");
|
|
return CURLE_OPERATION_TIMEDOUT;
|
|
}
|
|
}
|
|
/* socket is readable or writable */
|
|
}
|
|
|
|
/* Run transaction, and return to the caller if it failed or if
|
|
* this connection is part of a multi handle and this loop would
|
|
* execute again. This permits the owner of a multi handle to
|
|
* abort a connection attempt before step2 has completed while
|
|
* ensuring that a client using select() or epoll() will always
|
|
* have a valid fdset to wait on.
|
|
*/
|
|
retcode = polarssl_connect_step2(conn, sockindex);
|
|
if(retcode || (nonblocking &&
|
|
(ssl_connect_2 == connssl->connecting_state ||
|
|
ssl_connect_2_reading == connssl->connecting_state ||
|
|
ssl_connect_2_writing == connssl->connecting_state)))
|
|
return retcode;
|
|
|
|
} /* repeat step2 until all transactions are done. */
|
|
|
|
if(ssl_connect_3==connssl->connecting_state) {
|
|
retcode = polarssl_connect_step3(conn, sockindex);
|
|
if(retcode)
|
|
return retcode;
|
|
}
|
|
|
|
if(ssl_connect_done==connssl->connecting_state) {
|
|
connssl->state = ssl_connection_complete;
|
|
conn->recv[sockindex] = polarssl_recv;
|
|
conn->send[sockindex] = polarssl_send;
|
|
*done = TRUE;
|
|
}
|
|
else
|
|
*done = FALSE;
|
|
|
|
/* Reset our connect state machine */
|
|
connssl->connecting_state = ssl_connect_1;
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
CURLcode
|
|
Curl_polarssl_connect_nonblocking(struct connectdata *conn,
|
|
int sockindex,
|
|
bool *done)
|
|
{
|
|
return polarssl_connect_common(conn, sockindex, TRUE, done);
|
|
}
|
|
|
|
|
|
CURLcode
|
|
Curl_polarssl_connect(struct connectdata *conn,
|
|
int sockindex)
|
|
{
|
|
CURLcode retcode;
|
|
bool done = FALSE;
|
|
|
|
retcode = polarssl_connect_common(conn, sockindex, FALSE, &done);
|
|
if(retcode)
|
|
return retcode;
|
|
|
|
DEBUGASSERT(done);
|
|
|
|
return CURLE_OK;
|
|
}
|
|
|
|
#endif
|