* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2017, 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.
+ * are also available at https://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
to any specific SSL-layer.
Curl_ssl_ - prefix for generic ones
- Curl_ossl_ - prefix for OpenSSL ones
- Curl_gtls_ - prefix for GnuTLS ones
- Curl_nss_ - prefix for NSS ones
- Curl_gskit_ - prefix for GSKit ones
- Curl_polarssl_ - prefix for PolarSSL ones
- Curl_cyassl_ - prefix for CyaSSL ones
- Curl_schannel_ - prefix for Schannel SSPI ones
- Curl_darwinssl_ - prefix for SecureTransport (Darwin) ones
-
- Note that this source code uses curlssl_* functions, and they are all
- defines/macros #defined by the lib-specific header files.
+
+ Note that this source code uses the functions of the configured SSL
+ backend via the global Curl_ssl instance.
"SSL/TLS Strong Encryption: An Introduction"
- http://httpd.apache.org/docs-2.0/ssl/ssl_intro.html
+ https://httpd.apache.org/docs/2.0/ssl/ssl_intro.html
*/
#include "curl_setup.h"
#include "vtls.h" /* generic SSL protos etc */
#include "slist.h"
#include "sendf.h"
-#include "rawstr.h"
+#include "strcase.h"
#include "url.h"
#include "progress.h"
#include "share.h"
+#include "multiif.h"
#include "timeval.h"
#include "curl_md5.h"
#include "warnless.h"
(data->share->specifier & \
(1<<CURL_LOCK_DATA_SSL_SESSION)))
-static bool safe_strequal(char* str1, char* str2)
-{
- if(str1 && str2)
- /* both pointers point to something then compare them */
- return (0 != Curl_raw_equal(str1, str2)) ? TRUE : FALSE;
- else
- /* if both pointers are NULL then treat them as equal */
- return (!str1 && !str2) ? TRUE : FALSE;
-}
+#define CLONE_STRING(var) \
+ if(source->var) { \
+ dest->var = strdup(source->var); \
+ if(!dest->var) \
+ return FALSE; \
+ } \
+ else \
+ dest->var = NULL;
bool
-Curl_ssl_config_matches(struct ssl_config_data* data,
- struct ssl_config_data* needle)
+Curl_ssl_config_matches(struct ssl_primary_config* data,
+ struct ssl_primary_config* needle)
{
if((data->version == needle->version) &&
+ (data->version_max == needle->version_max) &&
(data->verifypeer == needle->verifypeer) &&
(data->verifyhost == needle->verifyhost) &&
- safe_strequal(data->CApath, needle->CApath) &&
- safe_strequal(data->CAfile, needle->CAfile) &&
- safe_strequal(data->random_file, needle->random_file) &&
- safe_strequal(data->egdsocket, needle->egdsocket) &&
- safe_strequal(data->cipher_list, needle->cipher_list))
+ (data->verifystatus == needle->verifystatus) &&
+ Curl_safe_strcasecompare(data->CApath, needle->CApath) &&
+ Curl_safe_strcasecompare(data->CAfile, needle->CAfile) &&
+ Curl_safe_strcasecompare(data->clientcert, needle->clientcert) &&
+ Curl_safe_strcasecompare(data->random_file, needle->random_file) &&
+ Curl_safe_strcasecompare(data->egdsocket, needle->egdsocket) &&
+ Curl_safe_strcasecompare(data->cipher_list, needle->cipher_list))
return TRUE;
return FALSE;
}
bool
-Curl_clone_ssl_config(struct ssl_config_data *source,
- struct ssl_config_data *dest)
+Curl_clone_primary_ssl_config(struct ssl_primary_config *source,
+ struct ssl_primary_config *dest)
{
- dest->sessionid = source->sessionid;
- dest->verifyhost = source->verifyhost;
- dest->verifypeer = source->verifypeer;
dest->version = source->version;
+ dest->version_max = source->version_max;
+ dest->verifypeer = source->verifypeer;
+ dest->verifyhost = source->verifyhost;
+ dest->verifystatus = source->verifystatus;
+ dest->sessionid = source->sessionid;
- if(source->CAfile) {
- dest->CAfile = strdup(source->CAfile);
- if(!dest->CAfile)
- return FALSE;
- }
- else
- dest->CAfile = NULL;
-
- if(source->CApath) {
- dest->CApath = strdup(source->CApath);
- if(!dest->CApath)
- return FALSE;
- }
- else
- dest->CApath = NULL;
-
- if(source->cipher_list) {
- dest->cipher_list = strdup(source->cipher_list);
- if(!dest->cipher_list)
- return FALSE;
- }
- else
- dest->cipher_list = NULL;
-
- if(source->egdsocket) {
- dest->egdsocket = strdup(source->egdsocket);
- if(!dest->egdsocket)
- return FALSE;
- }
- else
- dest->egdsocket = NULL;
-
- if(source->random_file) {
- dest->random_file = strdup(source->random_file);
- if(!dest->random_file)
- return FALSE;
- }
- else
- dest->random_file = NULL;
+ CLONE_STRING(CApath);
+ CLONE_STRING(CAfile);
+ CLONE_STRING(clientcert);
+ CLONE_STRING(random_file);
+ CLONE_STRING(egdsocket);
+ CLONE_STRING(cipher_list);
return TRUE;
}
-void Curl_free_ssl_config(struct ssl_config_data* sslc)
+void Curl_free_primary_ssl_config(struct ssl_primary_config* sslc)
{
- Curl_safefree(sslc->CAfile);
Curl_safefree(sslc->CApath);
- Curl_safefree(sslc->cipher_list);
- Curl_safefree(sslc->egdsocket);
+ Curl_safefree(sslc->CAfile);
+ Curl_safefree(sslc->clientcert);
Curl_safefree(sslc->random_file);
+ Curl_safefree(sslc->egdsocket);
+ Curl_safefree(sslc->cipher_list);
}
-
-/*
- * Curl_rand() returns a random unsigned integer, 32bit.
- *
- * This non-SSL function is put here only because this file is the only one
- * with knowledge of what the underlying SSL libraries provide in terms of
- * randomizers.
- *
- * NOTE: 'data' may be passed in as NULL when coming from external API without
- * easy handle!
- *
- */
-
-unsigned int Curl_rand(struct SessionHandle *data)
-{
- unsigned int r = 0;
- static unsigned int randseed;
- static bool seeded = FALSE;
-
-#ifdef CURLDEBUG
- char *force_entropy = getenv("CURL_ENTROPY");
- if(force_entropy) {
- if(!seeded) {
- size_t elen = strlen(force_entropy);
- size_t clen = sizeof(randseed);
- size_t min = elen < clen ? elen : clen;
- memcpy((char *)&randseed, force_entropy, min);
- seeded = TRUE;
- }
- else
- randseed++;
- return randseed;
- }
-#endif
-
- /* data may be NULL! */
- if(!Curl_ssl_random(data, (unsigned char *)&r, sizeof(r)))
- return r;
-
- /* If Curl_ssl_random() returns non-zero it couldn't offer randomness and we
- instead perform a "best effort" */
-
-#ifdef RANDOM_FILE
- if(!seeded) {
- /* if there's a random file to read a seed from, use it */
- int fd = open(RANDOM_FILE, O_RDONLY);
- if(fd > -1) {
- /* read random data into the randseed variable */
- ssize_t nread = read(fd, &randseed, sizeof(randseed));
- if(nread == sizeof(randseed))
- seeded = TRUE;
- close(fd);
- }
- }
+#ifdef USE_SSL
+static int multissl_init(const struct Curl_ssl *backend);
#endif
- if(!seeded) {
- struct timeval now = curlx_tvnow();
- infof(data, "WARNING: Using weak random seed\n");
- randseed += (unsigned int)now.tv_usec + (unsigned int)now.tv_sec;
- randseed = randseed * 1103515245 + 12345;
- randseed = randseed * 1103515245 + 12345;
- randseed = randseed * 1103515245 + 12345;
- seeded = TRUE;
- }
-
- /* Return an unsigned 32-bit pseudo-random number. */
- r = randseed = randseed * 1103515245 + 12345;
- return (r << 16) | ((r >> 16) & 0xFFFF);
-}
-
int Curl_ssl_backend(void)
{
- return (int)CURL_SSL_BACKEND;
+#ifdef USE_SSL
+ multissl_init(NULL);
+ return Curl_ssl->info.id;
+#else
+ return (int)CURLSSLBACKEND_NONE;
+#endif
}
#ifdef USE_SSL
/* "global" init done? */
-static bool init_ssl=FALSE;
+static bool init_ssl = FALSE;
/**
* Global SSL init
return 1;
init_ssl = TRUE; /* never again */
- return curlssl_init();
+ return Curl_ssl->init();
}
{
if(init_ssl) {
/* only cleanup if we did a previous init */
- curlssl_cleanup();
+ Curl_ssl->cleanup();
init_ssl = FALSE;
}
}
-static bool ssl_prefs_check(struct SessionHandle *data)
+static bool ssl_prefs_check(struct Curl_easy *data)
{
/* check for CURLOPT_SSLVERSION invalid parameter value */
- if((data->set.ssl.version < 0)
- || (data->set.ssl.version >= CURL_SSLVERSION_LAST)) {
+ const long sslver = data->set.ssl.primary.version;
+ if((sslver < 0) || (sslver >= CURL_SSLVERSION_LAST)) {
failf(data, "Unrecognized parameter value passed via CURLOPT_SSLVERSION");
return FALSE;
}
+
+ switch(data->set.ssl.primary.version_max) {
+ case CURL_SSLVERSION_MAX_NONE:
+ case CURL_SSLVERSION_MAX_DEFAULT:
+ break;
+
+ default:
+ if((data->set.ssl.primary.version_max >> 16) < sslver) {
+ failf(data, "CURL_SSLVERSION_MAX incompatible with CURL_SSLVERSION");
+ return FALSE;
+ }
+ }
+
return TRUE;
}
+static CURLcode
+ssl_connect_init_proxy(struct connectdata *conn, int sockindex)
+{
+ DEBUGASSERT(conn->bits.proxy_ssl_connected[sockindex]);
+ if(ssl_connection_complete == conn->ssl[sockindex].state &&
+ !conn->proxy_ssl[sockindex].use) {
+ struct ssl_backend_data *pbdata;
+
+ if(!Curl_ssl->support_https_proxy)
+ return CURLE_NOT_BUILT_IN;
+
+ /* The pointers to the ssl backend data, which is opaque here, are swapped
+ rather than move the contents. */
+ pbdata = conn->proxy_ssl[sockindex].backend;
+ conn->proxy_ssl[sockindex] = conn->ssl[sockindex];
+
+ memset(&conn->ssl[sockindex], 0, sizeof(conn->ssl[sockindex]));
+ memset(pbdata, 0, Curl_ssl->sizeof_ssl_backend_data);
+
+ conn->ssl[sockindex].backend = pbdata;
+ }
+ return CURLE_OK;
+}
+
CURLcode
Curl_ssl_connect(struct connectdata *conn, int sockindex)
{
CURLcode result;
+ if(conn->bits.proxy_ssl_connected[sockindex]) {
+ result = ssl_connect_init_proxy(conn, sockindex);
+ if(result)
+ return result;
+ }
+
if(!ssl_prefs_check(conn->data))
return CURLE_SSL_CONNECT_ERROR;
conn->ssl[sockindex].use = TRUE;
conn->ssl[sockindex].state = ssl_connection_negotiating;
- result = curlssl_connect(conn, sockindex);
+ result = Curl_ssl->connect(conn, sockindex);
if(!result)
Curl_pgrsTime(conn->data, TIMER_APPCONNECT); /* SSL is connected */
bool *done)
{
CURLcode result;
+ if(conn->bits.proxy_ssl_connected[sockindex]) {
+ result = ssl_connect_init_proxy(conn, sockindex);
+ if(result)
+ return result;
+ }
if(!ssl_prefs_check(conn->data))
return CURLE_SSL_CONNECT_ERROR;
/* mark this is being ssl requested from here on. */
conn->ssl[sockindex].use = TRUE;
-#ifdef curlssl_connect_nonblocking
- result = curlssl_connect_nonblocking(conn, sockindex, done);
-#else
- *done = TRUE; /* fallback to BLOCKING */
- result = curlssl_connect(conn, sockindex);
-#endif /* non-blocking connect support */
+ result = Curl_ssl->connect_nonblocking(conn, sockindex, done);
if(!result && *done)
Curl_pgrsTime(conn->data, TIMER_APPCONNECT); /* SSL is connected */
return result;
}
/*
+ * Lock shared SSL session data
+ */
+void Curl_ssl_sessionid_lock(struct connectdata *conn)
+{
+ if(SSLSESSION_SHARED(conn->data))
+ Curl_share_lock(conn->data,
+ CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
+}
+
+/*
+ * Unlock shared SSL session data
+ */
+void Curl_ssl_sessionid_unlock(struct connectdata *conn)
+{
+ if(SSLSESSION_SHARED(conn->data))
+ Curl_share_unlock(conn->data, CURL_LOCK_DATA_SSL_SESSION);
+}
+
+/*
* Check if there's a session ID for the given connection in the cache, and if
* there's one suitable, it is provided. Returns TRUE when no entry matched.
*/
bool Curl_ssl_getsessionid(struct connectdata *conn,
void **ssl_sessionid,
- size_t *idsize) /* set 0 if unknown */
+ size_t *idsize, /* set 0 if unknown */
+ int sockindex)
{
struct curl_ssl_session *check;
- struct SessionHandle *data = conn->data;
+ struct Curl_easy *data = conn->data;
size_t i;
long *general_age;
bool no_match = TRUE;
+ const bool isProxy = CONNECT_PROXY_SSL();
+ struct ssl_primary_config * const ssl_config = isProxy ?
+ &conn->proxy_ssl_config :
+ &conn->ssl_config;
+ const char * const name = isProxy ? conn->http_proxy.host.name :
+ conn->host.name;
+ int port = isProxy ? (int)conn->port : conn->remote_port;
*ssl_sessionid = NULL;
- if(!conn->ssl_config.sessionid)
+ DEBUGASSERT(SSL_SET_OPTION(primary.sessionid));
+
+ if(!SSL_SET_OPTION(primary.sessionid))
/* session ID re-use is disabled */
return TRUE;
/* Lock if shared */
- if(SSLSESSION_SHARED(data)) {
- Curl_share_lock(data, CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
+ if(SSLSESSION_SHARED(data))
general_age = &data->share->sessionage;
- }
else
general_age = &data->state.sessionage;
- for(i = 0; i < data->set.ssl.max_ssl_sessions; i++) {
+ for(i = 0; i < data->set.general_ssl.max_ssl_sessions; i++) {
check = &data->state.session[i];
if(!check->sessionid)
/* not session ID means blank entry */
continue;
- if(Curl_raw_equal(conn->host.name, check->name) &&
- (conn->remote_port == check->remote_port) &&
- Curl_ssl_config_matches(&conn->ssl_config, &check->ssl_config)) {
+ if(strcasecompare(name, check->name) &&
+ ((!conn->bits.conn_to_host && !check->conn_to_host) ||
+ (conn->bits.conn_to_host && check->conn_to_host &&
+ strcasecompare(conn->conn_to_host.name, check->conn_to_host))) &&
+ ((!conn->bits.conn_to_port && check->conn_to_port == -1) ||
+ (conn->bits.conn_to_port && check->conn_to_port != -1 &&
+ conn->conn_to_port == check->conn_to_port)) &&
+ (port == check->remote_port) &&
+ strcasecompare(conn->handler->scheme, check->scheme) &&
+ Curl_ssl_config_matches(ssl_config, &check->ssl_config)) {
/* yes, we have a session ID! */
(*general_age)++; /* increase general age */
check->age = *general_age; /* set this as used in this age */
}
}
- /* Unlock */
- if(SSLSESSION_SHARED(data))
- Curl_share_unlock(data, CURL_LOCK_DATA_SSL_SESSION);
-
return no_match;
}
/* defensive check */
/* free the ID the SSL-layer specific way */
- curlssl_session_free(session->sessionid);
+ Curl_ssl->session_free(session->sessionid);
session->sessionid = NULL;
session->age = 0; /* fresh */
- Curl_free_ssl_config(&session->ssl_config);
+ Curl_free_primary_ssl_config(&session->ssl_config);
Curl_safefree(session->name);
+ Curl_safefree(session->conn_to_host);
}
}
void Curl_ssl_delsessionid(struct connectdata *conn, void *ssl_sessionid)
{
size_t i;
- struct SessionHandle *data=conn->data;
+ struct Curl_easy *data = conn->data;
- if(SSLSESSION_SHARED(data))
- Curl_share_lock(data, CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
-
- for(i = 0; i < data->set.ssl.max_ssl_sessions; i++) {
+ for(i = 0; i < data->set.general_ssl.max_ssl_sessions; i++) {
struct curl_ssl_session *check = &data->state.session[i];
if(check->sessionid == ssl_sessionid) {
break;
}
}
-
- if(SSLSESSION_SHARED(data))
- Curl_share_unlock(data, CURL_LOCK_DATA_SSL_SESSION);
}
/*
*/
CURLcode Curl_ssl_addsessionid(struct connectdata *conn,
void *ssl_sessionid,
- size_t idsize)
+ size_t idsize,
+ int sockindex)
{
size_t i;
- struct SessionHandle *data=conn->data; /* the mother of all structs */
+ struct Curl_easy *data = conn->data; /* the mother of all structs */
struct curl_ssl_session *store = &data->state.session[0];
- long oldest_age=data->state.session[0].age; /* zero if unused */
+ long oldest_age = data->state.session[0].age; /* zero if unused */
char *clone_host;
+ char *clone_conn_to_host;
+ int conn_to_port;
long *general_age;
+ const bool isProxy = CONNECT_PROXY_SSL();
+ struct ssl_primary_config * const ssl_config = isProxy ?
+ &conn->proxy_ssl_config :
+ &conn->ssl_config;
- /* Even though session ID re-use might be disabled, that only disables USING
- IT. We still store it here in case the re-using is again enabled for an
- upcoming transfer */
+ DEBUGASSERT(SSL_SET_OPTION(primary.sessionid));
- clone_host = strdup(conn->host.name);
+ clone_host = strdup(isProxy ? conn->http_proxy.host.name : conn->host.name);
if(!clone_host)
return CURLE_OUT_OF_MEMORY; /* bail out */
+ if(conn->bits.conn_to_host) {
+ clone_conn_to_host = strdup(conn->conn_to_host.name);
+ if(!clone_conn_to_host) {
+ free(clone_host);
+ return CURLE_OUT_OF_MEMORY; /* bail out */
+ }
+ }
+ else
+ clone_conn_to_host = NULL;
+
+ if(conn->bits.conn_to_port)
+ conn_to_port = conn->conn_to_port;
+ else
+ conn_to_port = -1;
+
/* Now we should add the session ID and the host name to the cache, (remove
the oldest if necessary) */
/* If using shared SSL session, lock! */
if(SSLSESSION_SHARED(data)) {
- Curl_share_lock(data, CURL_LOCK_DATA_SSL_SESSION, CURL_LOCK_ACCESS_SINGLE);
general_age = &data->share->sessionage;
}
else {
}
/* find an empty slot for us, or find the oldest */
- for(i = 1; (i < data->set.ssl.max_ssl_sessions) &&
+ for(i = 1; (i < data->set.general_ssl.max_ssl_sessions) &&
data->state.session[i].sessionid; i++) {
if(data->state.session[i].age < oldest_age) {
oldest_age = data->state.session[i].age;
store = &data->state.session[i];
}
}
- if(i == data->set.ssl.max_ssl_sessions)
+ if(i == data->set.general_ssl.max_ssl_sessions)
/* cache is full, we must "kill" the oldest entry! */
Curl_ssl_kill_session(store);
else
store->sessionid = ssl_sessionid;
store->idsize = idsize;
store->age = *general_age; /* set current age */
- /* free it if there's one already present */
+ /* free it if there's one already present */
free(store->name);
+ free(store->conn_to_host);
store->name = clone_host; /* clone host name */
- store->remote_port = conn->remote_port; /* port number */
-
-
- /* Unlock */
- if(SSLSESSION_SHARED(data))
- Curl_share_unlock(data, CURL_LOCK_DATA_SSL_SESSION);
+ store->conn_to_host = clone_conn_to_host; /* clone connect to host name */
+ store->conn_to_port = conn_to_port; /* connect to port number */
+ /* port number */
+ store->remote_port = isProxy ? (int)conn->port : conn->remote_port;
+ store->scheme = conn->handler->scheme;
- if(!Curl_clone_ssl_config(&conn->ssl_config, &store->ssl_config)) {
+ if(!Curl_clone_primary_ssl_config(ssl_config, &store->ssl_config)) {
store->sessionid = NULL; /* let caller free sessionid */
free(clone_host);
+ free(clone_conn_to_host);
return CURLE_OUT_OF_MEMORY;
}
}
-void Curl_ssl_close_all(struct SessionHandle *data)
+void Curl_ssl_close_all(struct Curl_easy *data)
{
size_t i;
/* kill the session ID cache if not shared */
if(data->state.session && !SSLSESSION_SHARED(data)) {
- for(i = 0; i < data->set.ssl.max_ssl_sessions; i++)
+ for(i = 0; i < data->set.general_ssl.max_ssl_sessions; i++)
/* the single-killer function handles empty table slots */
Curl_ssl_kill_session(&data->state.session[i]);
Curl_safefree(data->state.session);
}
- curlssl_close_all(data);
+ Curl_ssl->close_all(data);
}
+#if defined(USE_OPENSSL) || defined(USE_GNUTLS) || defined(USE_SCHANNEL) || \
+ defined(USE_DARWINSSL) || defined(USE_POLARSSL) || defined(USE_NSS) || \
+ defined(USE_MBEDTLS)
+int Curl_ssl_getsock(struct connectdata *conn, curl_socket_t *socks,
+ int numsocks)
+{
+ struct ssl_connect_data *connssl = &conn->ssl[FIRSTSOCKET];
+
+ if(!numsocks)
+ return GETSOCK_BLANK;
+
+ if(connssl->connecting_state == ssl_connect_2_writing) {
+ /* write mode */
+ socks[0] = conn->sock[FIRSTSOCKET];
+ return GETSOCK_WRITESOCK(0);
+ }
+ if(connssl->connecting_state == ssl_connect_2_reading) {
+ /* read mode */
+ socks[0] = conn->sock[FIRSTSOCKET];
+ return GETSOCK_READSOCK(0);
+ }
+
+ return GETSOCK_BLANK;
+}
+#else
+int Curl_ssl_getsock(struct connectdata *conn,
+ curl_socket_t *socks,
+ int numsocks)
+{
+ (void)conn;
+ (void)socks;
+ (void)numsocks;
+ return GETSOCK_BLANK;
+}
+/* USE_OPENSSL || USE_GNUTLS || USE_SCHANNEL || USE_DARWINSSL || USE_NSS */
+#endif
+
void Curl_ssl_close(struct connectdata *conn, int sockindex)
{
DEBUGASSERT((sockindex <= 1) && (sockindex >= -1));
- curlssl_close(conn, sockindex);
+ Curl_ssl->close_one(conn, sockindex);
}
CURLcode Curl_ssl_shutdown(struct connectdata *conn, int sockindex)
{
- if(curlssl_shutdown(conn, sockindex))
+ if(Curl_ssl->shutdown(conn, sockindex))
return CURLE_SSL_SHUTDOWN_FAILED;
conn->ssl[sockindex].use = FALSE; /* get back to ordinary socket usage */
/* Selects an SSL crypto engine
*/
-CURLcode Curl_ssl_set_engine(struct SessionHandle *data, const char *engine)
+CURLcode Curl_ssl_set_engine(struct Curl_easy *data, const char *engine)
{
- return curlssl_set_engine(data, engine);
+ return Curl_ssl->set_engine(data, engine);
}
/* Selects the default SSL crypto engine
*/
-CURLcode Curl_ssl_set_engine_default(struct SessionHandle *data)
+CURLcode Curl_ssl_set_engine_default(struct Curl_easy *data)
{
- return curlssl_set_engine_default(data);
+ return Curl_ssl->set_engine_default(data);
}
/* Return list of OpenSSL crypto engine names. */
-struct curl_slist *Curl_ssl_engines_list(struct SessionHandle *data)
+struct curl_slist *Curl_ssl_engines_list(struct Curl_easy *data)
{
- return curlssl_engines_list(data);
+ return Curl_ssl->engines_list(data);
}
/*
* This sets up a session ID cache to the specified size. Make sure this code
* is agnostic to what underlying SSL technology we use.
*/
-CURLcode Curl_ssl_initsessions(struct SessionHandle *data, size_t amount)
+CURLcode Curl_ssl_initsessions(struct Curl_easy *data, size_t amount)
{
struct curl_ssl_session *session;
return CURLE_OUT_OF_MEMORY;
/* store the info in the SSL section */
- data->set.ssl.max_ssl_sessions = amount;
+ data->set.general_ssl.max_ssl_sessions = amount;
data->state.session = session;
data->state.sessionage = 1; /* this is brand new */
return CURLE_OK;
}
+static size_t Curl_multissl_version(char *buffer, size_t size);
+
size_t Curl_ssl_version(char *buffer, size_t size)
{
- return curlssl_version(buffer, size);
+#ifdef CURL_WITH_MULTI_SSL
+ return Curl_multissl_version(buffer, size);
+#else
+ return Curl_ssl->version(buffer, size);
+#endif
}
/*
*/
int Curl_ssl_check_cxn(struct connectdata *conn)
{
- return curlssl_check_cxn(conn);
+ return Curl_ssl->check_cxn(conn);
}
bool Curl_ssl_data_pending(const struct connectdata *conn,
int connindex)
{
- return curlssl_data_pending(conn, connindex);
+ return Curl_ssl->data_pending(conn, connindex);
}
-void Curl_ssl_free_certinfo(struct SessionHandle *data)
+void Curl_ssl_free_certinfo(struct Curl_easy *data)
{
int i;
struct curl_certinfo *ci = &data->info.certs;
if(ci->num_of_certs) {
/* free all individual lists used */
- for(i=0; i<ci->num_of_certs; i++) {
+ for(i = 0; i<ci->num_of_certs; i++) {
curl_slist_free_all(ci->certinfo[i]);
ci->certinfo[i] = NULL;
}
}
}
-CURLcode Curl_ssl_init_certinfo(struct SessionHandle *data, int num)
+CURLcode Curl_ssl_init_certinfo(struct Curl_easy *data, int num)
{
struct curl_certinfo *ci = &data->info.certs;
struct curl_slist **table;
/*
* 'value' is NOT a zero terminated string
*/
-CURLcode Curl_ssl_push_certinfo_len(struct SessionHandle *data,
+CURLcode Curl_ssl_push_certinfo_len(struct Curl_easy *data,
int certnum,
const char *label,
const char *value,
size_t valuelen)
{
- struct curl_certinfo * ci = &data->info.certs;
- char * output;
- struct curl_slist * nl;
+ struct curl_certinfo *ci = &data->info.certs;
+ char *output;
+ struct curl_slist *nl;
CURLcode result = CURLE_OK;
size_t labellen = strlen(label);
size_t outlen = labellen + 1 + valuelen + 1; /* label:value\0 */
snprintf(output, outlen, "%s:", label);
/* memcpy the value (it might not be zero terminated) */
- memcpy(&output[labellen+1], value, valuelen);
+ memcpy(&output[labellen + 1], value, valuelen);
/* zero terminate the output */
output[labellen + 1 + valuelen] = 0;
* This is a convenience function for push_certinfo_len that takes a zero
* terminated value.
*/
-CURLcode Curl_ssl_push_certinfo(struct SessionHandle *data,
+CURLcode Curl_ssl_push_certinfo(struct Curl_easy *data,
int certnum,
const char *label,
const char *value)
return Curl_ssl_push_certinfo_len(data, certnum, label, value, valuelen);
}
-int Curl_ssl_random(struct SessionHandle *data,
- unsigned char *entropy,
- size_t length)
+CURLcode Curl_ssl_random(struct Curl_easy *data,
+ unsigned char *entropy,
+ size_t length)
{
- return curlssl_random(data, entropy, length);
+ return Curl_ssl->random(data, entropy, length);
}
/*
* Generic pinned public key check.
*/
-CURLcode Curl_pin_peer_pubkey(const char *pinnedpubkey,
+CURLcode Curl_pin_peer_pubkey(struct Curl_easy *data,
+ const char *pinnedpubkey,
const unsigned char *pubkey, size_t pubkeylen)
{
FILE *fp;
size_t size, pem_len;
CURLcode pem_read;
CURLcode result = CURLE_SSL_PINNEDPUBKEYNOTMATCH;
-#ifdef curlssl_sha256sum
- size_t pinkeylen;
- char *pinkeycopy, *begin_pos, *end_pos;
- unsigned char *sha256sumdigest = NULL, *expectedsha256sumdigest = NULL;
-#endif
+ CURLcode encode;
+ size_t encodedlen, pinkeylen;
+ char *encoded, *pinkeycopy, *begin_pos, *end_pos;
+ unsigned char *sha256sumdigest = NULL;
/* if a path wasn't specified, don't pin */
if(!pinnedpubkey)
if(!pubkey || !pubkeylen)
return result;
-#ifdef curlssl_sha256sum
/* only do this if pinnedpubkey starts with "sha256//", length 8 */
if(strncmp(pinnedpubkey, "sha256//", 8) == 0) {
+ if(!Curl_ssl->sha256sum) {
+ /* without sha256 support, this cannot match */
+ return result;
+ }
+
/* compute sha256sum of public key */
- sha256sumdigest = malloc(SHA256_DIGEST_LENGTH);
+ sha256sumdigest = malloc(CURL_SHA256_DIGEST_LENGTH);
if(!sha256sumdigest)
return CURLE_OUT_OF_MEMORY;
- curlssl_sha256sum(pubkey, pubkeylen,
- sha256sumdigest, SHA256_DIGEST_LENGTH);
+ Curl_ssl->sha256sum(pubkey, pubkeylen,
+ sha256sumdigest, CURL_SHA256_DIGEST_LENGTH);
+ encode = Curl_base64_encode(data, (char *)sha256sumdigest,
+ CURL_SHA256_DIGEST_LENGTH, &encoded,
+ &encodedlen);
+ Curl_safefree(sha256sumdigest);
+
+ if(encode)
+ return encode;
+
+ infof(data, "\t public key hash: sha256//%s\n", encoded);
/* it starts with sha256//, copy so we can modify it */
pinkeylen = strlen(pinnedpubkey) + 1;
pinkeycopy = malloc(pinkeylen);
if(!pinkeycopy) {
- Curl_safefree(sha256sumdigest);
+ Curl_safefree(encoded);
return CURLE_OUT_OF_MEMORY;
}
memcpy(pinkeycopy, pinnedpubkey, pinkeylen);
if(end_pos)
end_pos[0] = '\0';
- /* decode base64 pinnedpubkey, 8 is length of "sha256//" */
- pem_read = Curl_base64_decode(begin_pos + 8,
- &expectedsha256sumdigest, &size);
- /* if not valid base64, don't bother comparing or freeing */
- if(!pem_read) {
- /* compare sha256 digests directly */
- if(SHA256_DIGEST_LENGTH == size &&
- !memcmp(sha256sumdigest, expectedsha256sumdigest,
- SHA256_DIGEST_LENGTH)) {
- result = CURLE_OK;
- Curl_safefree(expectedsha256sumdigest);
- break;
- }
- Curl_safefree(expectedsha256sumdigest);
+ /* compare base64 sha256 digests, 8 is the length of "sha256//" */
+ if(encodedlen == strlen(begin_pos + 8) &&
+ !memcmp(encoded, begin_pos + 8, encodedlen)) {
+ result = CURLE_OK;
+ break;
}
/*
begin_pos = strstr(end_pos, "sha256//");
}
} while(end_pos && begin_pos);
- Curl_safefree(sha256sumdigest);
+ Curl_safefree(encoded);
Curl_safefree(pinkeycopy);
return result;
}
-#endif
fp = fopen(pinnedpubkey, "rb");
if(!fp)
unsigned char *md5sum, /* output */
size_t md5len)
{
-#ifdef curlssl_md5sum
- curlssl_md5sum(tmp, tmplen, md5sum, md5len);
-#else
+ return Curl_ssl->md5sum(tmp, tmplen, md5sum, md5len);
+}
+#endif
+
+/*
+ * Check whether the SSL backend supports the status_request extension.
+ */
+bool Curl_ssl_cert_status_request(void)
+{
+ return Curl_ssl->cert_status_request();
+}
+
+/*
+ * Check whether the SSL backend supports false start.
+ */
+bool Curl_ssl_false_start(void)
+{
+ return Curl_ssl->false_start();
+}
+
+/*
+ * Default implementations for unsupported functions.
+ */
+
+int Curl_none_init(void)
+{
+ return 1;
+}
+
+void Curl_none_cleanup(void)
+{ }
+
+int Curl_none_shutdown(struct connectdata *conn UNUSED_PARAM,
+ int sockindex UNUSED_PARAM)
+{
+ (void)conn;
+ (void)sockindex;
+ return 0;
+}
+
+int Curl_none_check_cxn(struct connectdata *conn UNUSED_PARAM)
+{
+ (void)conn;
+ return -1;
+}
+
+CURLcode Curl_none_random(struct Curl_easy *data UNUSED_PARAM,
+ unsigned char *entropy UNUSED_PARAM,
+ size_t length UNUSED_PARAM)
+{
+ (void)data;
+ (void)entropy;
+ (void)length;
+ return CURLE_NOT_BUILT_IN;
+}
+
+void Curl_none_close_all(struct Curl_easy *data UNUSED_PARAM)
+{
+ (void)data;
+}
+
+void Curl_none_session_free(void *ptr UNUSED_PARAM)
+{
+ (void)ptr;
+}
+
+bool Curl_none_data_pending(const struct connectdata *conn UNUSED_PARAM,
+ int connindex UNUSED_PARAM)
+{
+ (void)conn;
+ (void)connindex;
+ return 0;
+}
+
+bool Curl_none_cert_status_request(void)
+{
+ return FALSE;
+}
+
+CURLcode Curl_none_set_engine(struct Curl_easy *data UNUSED_PARAM,
+ const char *engine UNUSED_PARAM)
+{
+ (void)data;
+ (void)engine;
+ return CURLE_NOT_BUILT_IN;
+}
+
+CURLcode Curl_none_set_engine_default(struct Curl_easy *data UNUSED_PARAM)
+{
+ (void)data;
+ return CURLE_NOT_BUILT_IN;
+}
+
+struct curl_slist *Curl_none_engines_list(struct Curl_easy *data UNUSED_PARAM)
+{
+ (void)data;
+ return (struct curl_slist *)NULL;
+}
+
+bool Curl_none_false_start(void)
+{
+ return FALSE;
+}
+
+#ifndef CURL_DISABLE_CRYPTO_AUTH
+CURLcode Curl_none_md5sum(unsigned char *input, size_t inputlen,
+ unsigned char *md5sum, size_t md5len UNUSED_PARAM)
+{
MD5_context *MD5pw;
- (void) md5len;
+ (void)md5len;
MD5pw = Curl_MD5_init(Curl_DIGEST_MD5);
if(!MD5pw)
return CURLE_OUT_OF_MEMORY;
- Curl_MD5_update(MD5pw, tmp, curlx_uztoui(tmplen));
+ Curl_MD5_update(MD5pw, input, curlx_uztoui(inputlen));
Curl_MD5_final(MD5pw, md5sum);
-#endif
return CURLE_OK;
}
+#else
+CURLcode Curl_none_md5sum(unsigned char *input UNUSED_PARAM,
+ size_t inputlen UNUSED_PARAM,
+ unsigned char *md5sum UNUSED_PARAM,
+ size_t md5len UNUSED_PARAM)
+{
+ (void)input;
+ (void)inputlen;
+ (void)md5sum;
+ (void)md5len;
+ return CURLE_NOT_BUILT_IN;
+}
#endif
-/*
- * Check whether the SSL backend supports the status_request extension.
- */
-bool Curl_ssl_cert_status_request(void)
+static int Curl_multissl_init(void)
+{
+ if(multissl_init(NULL))
+ return 1;
+ return Curl_ssl->init();
+}
+
+static CURLcode Curl_multissl_connect(struct connectdata *conn, int sockindex)
{
-#ifdef curlssl_cert_status_request
- return curlssl_cert_status_request();
+ if(multissl_init(NULL))
+ return CURLE_FAILED_INIT;
+ return Curl_ssl->connect(conn, sockindex);
+}
+
+static CURLcode Curl_multissl_connect_nonblocking(struct connectdata *conn,
+ int sockindex, bool *done)
+{
+ if(multissl_init(NULL))
+ return CURLE_FAILED_INIT;
+ return Curl_ssl->connect_nonblocking(conn, sockindex, done);
+}
+
+static void *Curl_multissl_get_internals(struct ssl_connect_data *connssl,
+ CURLINFO info)
+{
+ if(multissl_init(NULL))
+ return NULL;
+ return Curl_ssl->get_internals(connssl, info);
+}
+
+static void Curl_multissl_close(struct connectdata *conn, int sockindex)
+{
+ if(multissl_init(NULL))
+ return;
+ Curl_ssl->close_one(conn, sockindex);
+}
+
+static const struct Curl_ssl Curl_ssl_multi = {
+ { CURLSSLBACKEND_NONE, "multi" }, /* info */
+
+ 0, /* have_ca_path */
+ 0, /* have_certinfo */
+ 0, /* have_pinnedpubkey */
+ 0, /* have_ssl_ctx */
+ 0, /* support_https_proxy */
+
+ (size_t)-1, /* something insanely large to be on the safe side */
+
+ Curl_multissl_init, /* init */
+ Curl_none_cleanup, /* cleanup */
+ Curl_multissl_version, /* version */
+ Curl_none_check_cxn, /* check_cxn */
+ Curl_none_shutdown, /* shutdown */
+ Curl_none_data_pending, /* data_pending */
+ Curl_none_random, /* random */
+ Curl_none_cert_status_request, /* cert_status_request */
+ Curl_multissl_connect, /* connect */
+ Curl_multissl_connect_nonblocking, /* connect_nonblocking */
+ Curl_multissl_get_internals, /* get_internals */
+ Curl_multissl_close, /* close_one */
+ Curl_none_close_all, /* close_all */
+ Curl_none_session_free, /* session_free */
+ Curl_none_set_engine, /* set_engine */
+ Curl_none_set_engine_default, /* set_engine_default */
+ Curl_none_engines_list, /* engines_list */
+ Curl_none_false_start, /* false_start */
+ Curl_none_md5sum, /* md5sum */
+ NULL /* sha256sum */
+};
+
+const struct Curl_ssl *Curl_ssl =
+#if defined(CURL_WITH_MULTI_SSL)
+ &Curl_ssl_multi;
+#elif defined(USE_AXTLS)
+ &Curl_ssl_axtls;
+#elif defined(USE_CYASSL)
+ &Curl_ssl_cyassl;
+#elif defined(USE_DARWINSSL)
+ &Curl_ssl_darwinssl;
+#elif defined(USE_GNUTLS)
+ &Curl_ssl_gnutls;
+#elif defined(USE_GSKIT)
+ &Curl_ssl_gskit;
+#elif defined(USE_MBEDTLS)
+ &Curl_ssl_mbedtls;
+#elif defined(USE_NSS)
+ &Curl_ssl_nss;
+#elif defined(USE_OPENSSL)
+ &Curl_ssl_openssl;
+#elif defined(USE_POLARSSL)
+ &Curl_ssl_polarssl;
+#elif defined(USE_SCHANNEL)
+ &Curl_ssl_schannel;
#else
- return FALSE;
+#error "Missing struct Curl_ssl for selected SSL backend"
#endif
+
+static const struct Curl_ssl *available_backends[] = {
+#if defined(USE_AXTLS)
+ &Curl_ssl_axtls,
+#endif
+#if defined(USE_CYASSL)
+ &Curl_ssl_cyassl,
+#endif
+#if defined(USE_DARWINSSL)
+ &Curl_ssl_darwinssl,
+#endif
+#if defined(USE_GNUTLS)
+ &Curl_ssl_gnutls,
+#endif
+#if defined(USE_GSKIT)
+ &Curl_ssl_gskit,
+#endif
+#if defined(USE_MBEDTLS)
+ &Curl_ssl_mbedtls,
+#endif
+#if defined(USE_NSS)
+ &Curl_ssl_nss,
+#endif
+#if defined(USE_OPENSSL)
+ &Curl_ssl_openssl,
+#endif
+#if defined(USE_POLARSSL)
+ &Curl_ssl_polarssl,
+#endif
+#if defined(USE_SCHANNEL)
+ &Curl_ssl_schannel,
+#endif
+ NULL
+};
+
+static size_t Curl_multissl_version(char *buffer, size_t size)
+{
+ static const struct Curl_ssl *selected;
+ static char backends[200];
+ static size_t total;
+ const struct Curl_ssl *current;
+
+ current = Curl_ssl == &Curl_ssl_multi ? available_backends[0] : Curl_ssl;
+
+ if(current != selected) {
+ char *p = backends;
+ int i;
+
+ selected = current;
+
+ for(i = 0; available_backends[i]; i++) {
+ if(i)
+ *(p++) = ' ';
+ if(selected != available_backends[i])
+ *(p++) = '(';
+ p += available_backends[i]->version(p, backends + sizeof(backends) - p);
+ if(selected != available_backends[i])
+ *(p++) = ')';
+ }
+ *p = '\0';
+ total = p - backends;
+ }
+
+ if(size < total)
+ memcpy(buffer, backends, total + 1);
+ else {
+ memcpy(buffer, backends, size - 1);
+ buffer[size - 1] = '\0';
+ }
+
+ return total;
}
-/*
- * Check whether the SSL backend supports false start.
- */
-bool Curl_ssl_false_start(void)
+static int multissl_init(const struct Curl_ssl *backend)
{
-#ifdef curlssl_false_start
- return curlssl_false_start();
-#else
- return FALSE;
+ const char *env;
+ char *env_tmp;
+ int i;
+
+ if(Curl_ssl != &Curl_ssl_multi)
+ return 1;
+
+ if(backend) {
+ Curl_ssl = backend;
+ return 0;
+ }
+
+ if(!available_backends[0])
+ return 1;
+
+ env = env_tmp = curl_getenv("CURL_SSL_BACKEND");
+#ifdef CURL_DEFAULT_SSL_BACKEND
+ if(!env)
+ env = CURL_DEFAULT_SSL_BACKEND;
#endif
+ if(env) {
+ for(i = 0; available_backends[i]; i++) {
+ if(strcasecompare(env, available_backends[i]->info.name)) {
+ Curl_ssl = available_backends[i];
+ curl_free(env_tmp);
+ return 0;
+ }
+ }
+ }
+
+ /* Fall back to first available backend */
+ Curl_ssl = available_backends[0];
+ curl_free(env_tmp);
+ return 0;
+}
+
+CURLsslset curl_global_sslset(curl_sslbackend id, const char *name,
+ const curl_ssl_backend ***avail)
+{
+ int i;
+
+ if(Curl_ssl != &Curl_ssl_multi)
+ return id == Curl_ssl->info.id ? CURLSSLSET_OK : CURLSSLSET_TOO_LATE;
+
+ for(i = 0; available_backends[i]; i++) {
+ if(available_backends[i]->info.id == id ||
+ (name && strcasecompare(available_backends[i]->info.name, name))) {
+ multissl_init(available_backends[i]);
+ return CURLSSLSET_OK;
+ }
+ }
+
+ if(avail)
+ *avail = (const curl_ssl_backend **)&available_backends;
+ return CURLSSLSET_UNKNOWN_BACKEND;
+}
+
+#else /* USE_SSL */
+CURLsslset curl_global_sslset(curl_sslbackend id, const char *name,
+ const curl_ssl_backend ***avail)
+{
+ (void)id;
+ (void)name;
+ (void)avail;
+ return CURLSSLSET_NO_BACKENDS;
}
-#endif /* USE_SSL */
+#endif /* !USE_SSL */
projects / platform / upstream / curl.git / blobdiff