PolarSSL: add support for asynchronous connect
This commit is contained in:
Dag Ekengren
Daniel Stenberg
Родитель
f9bb5d2984
Коммит
5e852ab9d1
326
lib/polarssl.c
326
lib/polarssl.c
|
|
@ -41,6 +41,9 @@
|
|||
#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
|
||||
|
|
@ -95,15 +98,14 @@ static void polarssl_debug(void *context, int level, char *line)
|
|||
static Curl_recv polarssl_recv;
|
||||
static Curl_send polarssl_send;
|
||||
|
||||
/*
|
||||
* This function loads all the client/CA certificates and CRLs. Setup the TLS
|
||||
* layer and do all necessary magic.
|
||||
*/
|
||||
CURLcode
|
||||
Curl_polarssl_connect(struct connectdata *conn,
|
||||
int sockindex)
|
||||
|
||||
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
|
||||
|
|
@ -113,10 +115,6 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
#endif
|
||||
void *old_session = NULL;
|
||||
size_t old_session_size = 0;
|
||||
char buffer[1024];
|
||||
|
||||
if(conn->ssl[sockindex].state == ssl_connection_complete)
|
||||
return CURLE_OK;
|
||||
|
||||
/* PolarSSL only supports SSLv3 and TLSv1 */
|
||||
if(data->set.ssl.version == CURL_SSLVERSION_SSLv2) {
|
||||
|
|
@ -126,16 +124,16 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
else if(data->set.ssl.version == CURL_SSLVERSION_SSLv3)
|
||||
sni = FALSE; /* SSLv3 has no SNI */
|
||||
|
||||
havege_init(&conn->ssl[sockindex].hs);
|
||||
havege_init(&connssl->hs);
|
||||
|
||||
/* Load the trusted CA */
|
||||
memset(&conn->ssl[sockindex].cacert, 0, sizeof(x509_cert));
|
||||
memset(&connssl->cacert, 0, sizeof(x509_cert));
|
||||
|
||||
if(data->set.str[STRING_SSL_CAFILE]) {
|
||||
ret = x509parse_crtfile(&conn->ssl[sockindex].cacert,
|
||||
ret = x509parse_crtfile(&connssl->cacert,
|
||||
data->set.str[STRING_SSL_CAFILE]);
|
||||
|
||||
if(ret) {
|
||||
if(ret<0) {
|
||||
failf(data, "Error reading ca cert file %s: -0x%04X",
|
||||
data->set.str[STRING_SSL_CAFILE], ret);
|
||||
|
||||
|
|
@ -145,10 +143,10 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
}
|
||||
|
||||
/* Load the client certificate */
|
||||
memset(&conn->ssl[sockindex].clicert, 0, sizeof(x509_cert));
|
||||
memset(&connssl->clicert, 0, sizeof(x509_cert));
|
||||
|
||||
if(data->set.str[STRING_CERT]) {
|
||||
ret = x509parse_crtfile(&conn->ssl[sockindex].clicert,
|
||||
ret = x509parse_crtfile(&connssl->clicert,
|
||||
data->set.str[STRING_CERT]);
|
||||
|
||||
if(ret) {
|
||||
|
|
@ -160,7 +158,7 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
|
||||
/* Load the client private key */
|
||||
if(data->set.str[STRING_KEY]) {
|
||||
ret = x509parse_keyfile(&conn->ssl[sockindex].rsa,
|
||||
ret = x509parse_keyfile(&connssl->rsa,
|
||||
data->set.str[STRING_KEY],
|
||||
data->set.str[STRING_KEY_PASSWD]);
|
||||
|
||||
|
|
@ -172,10 +170,10 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
}
|
||||
|
||||
/* Load the CRL */
|
||||
memset(&conn->ssl[sockindex].crl, 0, sizeof(x509_crl));
|
||||
memset(&connssl->crl, 0, sizeof(x509_crl));
|
||||
|
||||
if(data->set.str[STRING_SSL_CRLFILE]) {
|
||||
ret = x509parse_crlfile(&conn->ssl[sockindex].crl,
|
||||
ret = x509parse_crlfile(&connssl->crl,
|
||||
data->set.str[STRING_SSL_CRLFILE]);
|
||||
|
||||
if(ret) {
|
||||
|
|
@ -185,64 +183,77 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
}
|
||||
}
|
||||
|
||||
infof(data, "PolarSSL: Connected to %s:%d\n",
|
||||
infof(data, "PolarSSL: Connecting to %s:%d\n",
|
||||
conn->host.name, conn->remote_port);
|
||||
|
||||
havege_init(&conn->ssl[sockindex].hs);
|
||||
|
||||
if(ssl_init(&conn->ssl[sockindex].ssl)) {
|
||||
if(ssl_init(&connssl->ssl)) {
|
||||
failf(data, "PolarSSL: ssl_init failed");
|
||||
return CURLE_SSL_CONNECT_ERROR;
|
||||
}
|
||||
|
||||
ssl_set_endpoint(&conn->ssl[sockindex].ssl, SSL_IS_CLIENT);
|
||||
ssl_set_authmode(&conn->ssl[sockindex].ssl, SSL_VERIFY_OPTIONAL);
|
||||
ssl_set_endpoint(&connssl->ssl, SSL_IS_CLIENT);
|
||||
ssl_set_authmode(&connssl->ssl, SSL_VERIFY_OPTIONAL);
|
||||
|
||||
ssl_set_rng(&conn->ssl[sockindex].ssl, HAVEGE_RANDOM,
|
||||
&conn->ssl[sockindex].hs);
|
||||
ssl_set_bio(&conn->ssl[sockindex].ssl,
|
||||
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(&conn->ssl[sockindex].ssl, ssl_default_ciphers);
|
||||
ssl_set_ciphers(&connssl->ssl, ssl_default_ciphers);
|
||||
#else
|
||||
ssl_set_ciphersuites(&conn->ssl[sockindex].ssl, ssl_default_ciphersuites);
|
||||
ssl_set_ciphersuites(&connssl->ssl, ssl_default_ciphersuites);
|
||||
#endif
|
||||
if(!Curl_ssl_getsessionid(conn, &old_session, &old_session_size)) {
|
||||
memcpy(&conn->ssl[sockindex].ssn, old_session, old_session_size);
|
||||
memcpy(&connssl->ssn, old_session, old_session_size);
|
||||
infof(data, "PolarSSL re-using session\n");
|
||||
}
|
||||
|
||||
ssl_set_session(&conn->ssl[sockindex].ssl, 1, 600,
|
||||
&conn->ssl[sockindex].ssn);
|
||||
ssl_set_session(&connssl->ssl, 1, 600,
|
||||
&connssl->ssn);
|
||||
|
||||
ssl_set_ca_chain(&conn->ssl[sockindex].ssl,
|
||||
&conn->ssl[sockindex].cacert,
|
||||
&conn->ssl[sockindex].crl,
|
||||
ssl_set_ca_chain(&connssl->ssl,
|
||||
&connssl->cacert,
|
||||
&connssl->crl,
|
||||
conn->host.name);
|
||||
|
||||
ssl_set_own_cert(&conn->ssl[sockindex].ssl,
|
||||
&conn->ssl[sockindex].clicert, &conn->ssl[sockindex].rsa);
|
||||
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(&conn->ssl[sockindex].ssl, conn->host.name)) {
|
||||
sni && ssl_set_hostname(&connssl->ssl, conn->host.name)) {
|
||||
infof(data, "WARNING: failed to configure "
|
||||
"server name indication (SNI) TLS extension\n");
|
||||
}
|
||||
|
||||
infof(data, "PolarSSL: performing SSL/TLS handshake...\n");
|
||||
|
||||
#ifdef POLARSSL_DEBUG
|
||||
ssl_set_dbg(&conn->ssl[sockindex].ssl, polarssl_debug, data);
|
||||
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(&conn->ssl[sockindex].ssl)))
|
||||
if(!(ret = ssl_handshake(&connssl->ssl)))
|
||||
break;
|
||||
else if(ret != POLARSSL_ERR_NET_WANT_READ &&
|
||||
ret != POLARSSL_ERR_NET_WANT_WRITE) {
|
||||
|
|
@ -250,27 +261,17 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
return CURLE_SSL_CONNECT_ERROR;
|
||||
}
|
||||
else {
|
||||
/* wait for data from server... */
|
||||
long timeout_ms = Curl_timeleft(data, NULL, TRUE);
|
||||
|
||||
if(timeout_ms < 0) {
|
||||
failf(data, "SSL connection timeout");
|
||||
return CURLE_OPERATION_TIMEDOUT;
|
||||
if(ret == POLARSSL_ERR_NET_WANT_READ) {
|
||||
connssl->connecting_state = ssl_connect_2_reading;
|
||||
return CURLE_OK;
|
||||
}
|
||||
|
||||
switch(Curl_socket_ready(conn->sock[sockindex],
|
||||
CURL_SOCKET_BAD, timeout_ms)) {
|
||||
case 0:
|
||||
failf(data, "SSL handshake timeout");
|
||||
return CURLE_OPERATION_TIMEDOUT;
|
||||
break;
|
||||
case CURL_CSELECT_IN:
|
||||
continue;
|
||||
break;
|
||||
default:
|
||||
return CURLE_SSL_CONNECT_ERROR;
|
||||
break;
|
||||
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;
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -299,7 +300,7 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
if(ret & BADCERT_NOT_TRUSTED)
|
||||
failf(data, "Cert verify failed: BADCERT_NOT_TRUSTED");
|
||||
|
||||
return CURLE_SSL_CACERT;
|
||||
return CURLE_PEER_FAILED_VERIFICATION;
|
||||
}
|
||||
|
||||
if(conn->ssl[sockindex].ssl.peer_cert) {
|
||||
|
|
@ -311,25 +312,55 @@ Curl_polarssl_connect(struct connectdata *conn,
|
|||
infof(data, "Dumping cert info:\n%s\n", buffer);
|
||||
}
|
||||
|
||||
conn->ssl[sockindex].state = ssl_connection_complete;
|
||||
conn->recv[sockindex] = polarssl_recv;
|
||||
conn->send[sockindex] = polarssl_send;
|
||||
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 */
|
||||
{
|
||||
void *new_session = malloc(sizeof(conn->ssl[sockindex].ssn));
|
||||
|
||||
if(new_session) {
|
||||
memcpy(new_session, &conn->ssl[sockindex].ssn,
|
||||
sizeof(conn->ssl[sockindex].ssn));
|
||||
|
||||
if(old_session)
|
||||
Curl_ssl_delsessionid(conn, old_session);
|
||||
|
||||
return Curl_ssl_addsessionid(conn, new_session,
|
||||
sizeof(conn->ssl[sockindex].ssn));
|
||||
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;
|
||||
}
|
||||
|
|
@ -404,4 +435,141 @@ size_t Curl_polarssl_version(char *buffer, size_t size)
|
|||
return snprintf(buffer, size, "PolarSSL");
|
||||
}
|
||||
|
||||
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
|
||||
|
|
|
|||
|
|
@ -27,6 +27,10 @@
|
|||
|
||||
CURLcode Curl_polarssl_connect(struct connectdata *conn, int sockindex);
|
||||
|
||||
CURLcode Curl_polarssl_connect_nonblocking(struct connectdata *conn,
|
||||
int sockindex,
|
||||
bool *done);
|
||||
|
||||
/* tell PolarSSL to close down all open information regarding connections (and
|
||||
thus session ID caching etc) */
|
||||
void Curl_polarssl_close_all(struct SessionHandle *data);
|
||||
|
|
@ -42,6 +46,7 @@ int Curl_polarssl_shutdown(struct connectdata *conn, int sockindex);
|
|||
#define curlssl_init() (1)
|
||||
#define curlssl_cleanup() Curl_nop_stmt
|
||||
#define curlssl_connect Curl_polarssl_connect
|
||||
#define curlssl_connect_nonblocking Curl_polarssl_connect_nonblocking
|
||||
#define curlssl_session_free(x) Curl_polarssl_session_free(x)
|
||||
#define curlssl_close_all Curl_polarssl_close_all
|
||||
#define curlssl_close Curl_polarssl_close
|
||||
|
|
|
|||
|
|
@ -261,6 +261,7 @@ struct ssl_connect_data {
|
|||
x509_cert clicert;
|
||||
x509_crl crl;
|
||||
rsa_context rsa;
|
||||
ssl_connect_state connecting_state;
|
||||
#endif /* USE_POLARSSL */
|
||||
#ifdef USE_CYASSL
|
||||
SSL_CTX* ctx;
|
||||
|
|
|
|||
Загрузка…
Ссылка в новой задаче