#include <stdio.h>
#include <openssl/lhash.h>
#include <openssl/rand.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
#include "ssl_locl.h"
-#include "cryptlib.h"
static void SSL_SESSION_list_remove(SSL_CTX *ctx, SSL_SESSION *s);
static void SSL_SESSION_list_add(SSL_CTX *ctx,SSL_SESSION *s);
static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck);
-SSL_SESSION *SSL_get_session(SSL *ssl)
+SSL_SESSION *SSL_get_session(const SSL *ssl)
/* aka SSL_get0_session; gets 0 objects, just returns a copy of the pointer */
{
return(ssl->session);
/* Need to lock this all up rather than just use CRYPTO_add so that
* somebody doesn't free ssl->session between when we check it's
* non-null and when we up the reference count. */
- CRYPTO_r_lock(CRYPTO_LOCK_SSL_SESSION);
+ CRYPTO_w_lock(CRYPTO_LOCK_SSL_SESSION);
sess = ssl->session;
if(sess)
sess->references++;
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL_SESSION);
+ CRYPTO_w_unlock(CRYPTO_LOCK_SSL_SESSION);
return(sess);
}
return(CRYPTO_set_ex_data(&s->ex_data,idx,arg));
}
-void *SSL_SESSION_get_ex_data(SSL_SESSION *s, int idx)
+void *SSL_SESSION_get_ex_data(const SSL_SESSION *s, int idx)
{
return(CRYPTO_get_ex_data(&s->ex_data,idx));
}
ss->verify_result = 1; /* avoid 0 (= X509_V_OK) just in case */
ss->references=1;
ss->timeout=60*5+4; /* 5 minute timeout by default */
- ss->time=time(NULL);
+ ss->time=(unsigned long)time(NULL);
ss->prev=NULL;
ss->next=NULL;
ss->compress_meth=0;
+#ifndef OPENSSL_NO_TLSEXT
+ ss->tlsext_hostname = NULL;
+#endif
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data);
return(ss);
}
+const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s, unsigned int *len)
+ {
+ if(len)
+ *len = s->session_id_length;
+ return s->session_id;
+ }
+
/* Even with SSLv2, we have 16 bytes (128 bits) of session ID space. SSLv3/TLSv1
* has 32 bytes (256 bits). As such, filling the ID with random gunk repeatedly
* until we have no conflict is going to complete in one iteration pretty much
{
unsigned int retry = 0;
do
- RAND_pseudo_bytes(id, *id_len);
+ if (RAND_pseudo_bytes(id, *id_len) <= 0)
+ return 0;
while(SSL_has_matching_session_id(ssl, id, *id_len) &&
(++retry < MAX_SESS_ID_ATTEMPTS));
if(retry < MAX_SESS_ID_ATTEMPTS)
ss->ssl_version=TLS1_VERSION;
ss->session_id_length=SSL3_SSL_SESSION_ID_LENGTH;
}
+ else if (s->version == DTLS1_BAD_VER)
+ {
+ ss->ssl_version=DTLS1_BAD_VER;
+ ss->session_id_length=SSL3_SSL_SESSION_ID_LENGTH;
+ }
+ else if (s->version == DTLS1_VERSION)
+ {
+ ss->ssl_version=DTLS1_VERSION;
+ ss->session_id_length=SSL3_SSL_SESSION_ID_LENGTH;
+ }
else
{
SSLerr(SSL_F_SSL_GET_NEW_SESSION,SSL_R_UNSUPPORTED_SSL_VERSION);
SSL_SESSION_free(ss);
return(0);
}
+#ifndef OPENSSL_NO_TLSEXT
+ /* If RFC4507 ticket use empty session ID */
+ if (s->tlsext_ticket_expected)
+ {
+ ss->session_id_length = 0;
+ goto sess_id_done;
+ }
+#endif
/* Choose which callback will set the session ID */
CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
if(s->generate_session_id)
SSL_SESSION_free(ss);
return(0);
}
+#ifndef OPENSSL_NO_TLSEXT
+ sess_id_done:
+ if (s->tlsext_hostname) {
+ ss->tlsext_hostname = BUF_strdup(s->tlsext_hostname);
+ if (ss->tlsext_hostname == NULL) {
+ SSLerr(SSL_F_SSL_GET_NEW_SESSION, ERR_R_INTERNAL_ERROR);
+ SSL_SESSION_free(ss);
+ return 0;
+ }
+ }
+#endif
}
else
{
return(1);
}
-int ssl_get_prev_session(SSL *s, unsigned char *session_id, int len)
+int ssl_get_prev_session(SSL *s, unsigned char *session_id, int len,
+ const unsigned char *limit)
{
/* This is used only by servers. */
- SSL_SESSION *ret=NULL,data;
+ SSL_SESSION *ret=NULL;
int fatal = 0;
-
- data.ssl_version=s->version;
- data.session_id_length=len;
+#ifndef OPENSSL_NO_TLSEXT
+ int r;
+#endif
+
if (len > SSL_MAX_SSL_SESSION_ID_LENGTH)
goto err;
- memcpy(data.session_id,session_id,len);
-
+#ifndef OPENSSL_NO_TLSEXT
+ r = tls1_process_ticket(s, session_id, len, limit, &ret);
+ if (r == -1)
+ {
+ fatal = 1;
+ goto err;
+ }
+ else if (r == 0 || (!ret && !len))
+ goto err;
+ else if (!ret && !(s->session_ctx->session_cache_mode & SSL_SESS_CACHE_NO_INTERNAL_LOOKUP))
+#else
+ if (len == 0)
+ goto err;
if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_NO_INTERNAL_LOOKUP))
+#endif
{
+ SSL_SESSION data;
+ data.ssl_version=s->version;
+ data.session_id_length=len;
+ if (len == 0)
+ return 0;
+ memcpy(data.session_id,session_id,len);
CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
ret=(SSL_SESSION *)lh_retrieve(s->ctx->sessions,&data);
if (ret != NULL)
/* Now ret is non-NULL, and we own one of its reference counts. */
- if((s->verify_mode&SSL_VERIFY_PEER)
- && (!s->sid_ctx_length || ret->sid_ctx_length != s->sid_ctx_length
- || memcmp(ret->sid_ctx,s->sid_ctx,ret->sid_ctx_length)))
- {
+ if (ret->sid_ctx_length != s->sid_ctx_length
+ || memcmp(ret->sid_ctx,s->sid_ctx,ret->sid_ctx_length))
+ {
/* We've found the session named by the client, but we don't
* want to use it in this context. */
-
- if (s->sid_ctx_length == 0)
- {
- /* application should have used SSL[_CTX]_set_session_id_context
- * -- we could tolerate this and just pretend we never heard
- * of this session, but then applications could effectively
- * disable the session cache by accident without anyone noticing */
- SSLerr(SSL_F_SSL_GET_PREV_SESSION,SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED);
- fatal = 1;
- goto err;
- }
- else
- {
#if 0 /* The client cannot always know when a session is not appropriate,
- * so we shouldn't generate an error message. */
+ * so we shouldn't generate an error message. */
- SSLerr(SSL_F_SSL_GET_PREV_SESSION,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
+ SSLerr(SSL_F_SSL_GET_PREV_SESSION,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
#endif
- goto err; /* treat like cache miss */
- }
+ goto err; /* treat like cache miss */
+ }
+
+ if((s->verify_mode & SSL_VERIFY_PEER) && s->sid_ctx_length == 0)
+ {
+ /* We can't be sure if this session is being used out of
+ * context, which is especially important for SSL_VERIFY_PEER.
+ * The application should have used SSL[_CTX]_set_session_id_context.
+ *
+ * For this error case, we generate an error instead of treating
+ * the event like a cache miss (otherwise it would be easy for
+ * applications to effectively disable the session cache by
+ * accident without anyone noticing).
+ */
+
+ SSLerr(SSL_F_SSL_GET_PREV_SESSION,SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED);
+ fatal = 1;
+ goto err;
}
if (ret->cipher == NULL)
CRYPTO_add(&ret->references,1,CRYPTO_LOCK_SSL_SESSION);
#endif
- if ((long)(ret->time+ret->timeout) < (long)time(NULL)) /* timeout */
+ if (ret->timeout < (long)(time(NULL) - ret->time)) /* timeout */
{
s->ctx->stats.sess_timeout++;
/* remove it from the cache */
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data);
- memset(ss->key_arg,0,SSL_MAX_KEY_ARG_LENGTH);
- memset(ss->master_key,0,SSL_MAX_MASTER_KEY_LENGTH);
- memset(ss->session_id,0,SSL_MAX_SSL_SESSION_ID_LENGTH);
+ OPENSSL_cleanse(ss->key_arg,sizeof ss->key_arg);
+ OPENSSL_cleanse(ss->master_key,sizeof ss->master_key);
+ OPENSSL_cleanse(ss->session_id,sizeof ss->session_id);
if (ss->sess_cert != NULL) ssl_sess_cert_free(ss->sess_cert);
if (ss->peer != NULL) X509_free(ss->peer);
if (ss->ciphers != NULL) sk_SSL_CIPHER_free(ss->ciphers);
- memset(ss,0,sizeof(*ss));
+#ifndef OPENSSL_NO_TLSEXT
+ if (ss->tlsext_hostname != NULL) OPENSSL_free(ss->tlsext_hostname);
+ if (ss->tlsext_tick != NULL) OPENSSL_free(ss->tlsext_tick);
+#endif
+ OPENSSL_cleanse(ss,sizeof(*ss));
OPENSSL_free(ss);
}
if (s->kssl_ctx && !s->kssl_ctx->client_princ &&
session->krb5_client_princ_len > 0)
{
- s->kssl_ctx->client_princ = (char *)malloc(session->krb5_client_princ_len + 1);
+ s->kssl_ctx->client_princ = (char *)OPENSSL_malloc(session->krb5_client_princ_len + 1);
memcpy(s->kssl_ctx->client_princ,session->krb5_client_princ,
session->krb5_client_princ_len);
s->kssl_ctx->client_princ[session->krb5_client_princ_len] = '\0';
return(1);
}
-long SSL_SESSION_get_timeout(SSL_SESSION *s)
+long SSL_SESSION_get_timeout(const SSL_SESSION *s)
{
if (s == NULL) return(0);
return(s->timeout);
}
-long SSL_SESSION_get_time(SSL_SESSION *s)
+long SSL_SESSION_get_time(const SSL_SESSION *s)
{
if (s == NULL) return(0);
return(s->time);
return(l);
}
-long SSL_CTX_get_timeout(SSL_CTX *s)
+long SSL_CTX_get_timeout(const SSL_CTX *s)
{
if (s == NULL) return(0);
return(s->session_timeout);
}
}
+void SSL_CTX_sess_set_new_cb(SSL_CTX *ctx,
+ int (*cb)(struct ssl_st *ssl,SSL_SESSION *sess))
+ {
+ ctx->new_session_cb=cb;
+ }
+
+int (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx))(SSL *ssl, SSL_SESSION *sess)
+ {
+ return ctx->new_session_cb;
+ }
+
+void SSL_CTX_sess_set_remove_cb(SSL_CTX *ctx,
+ void (*cb)(SSL_CTX *ctx,SSL_SESSION *sess))
+ {
+ ctx->remove_session_cb=cb;
+ }
+
+void (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx))(SSL_CTX * ctx,SSL_SESSION *sess)
+ {
+ return ctx->remove_session_cb;
+ }
+
+void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx,
+ SSL_SESSION *(*cb)(struct ssl_st *ssl,
+ unsigned char *data,int len,int *copy))
+ {
+ ctx->get_session_cb=cb;
+ }
+
+SSL_SESSION * (*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx))(SSL *ssl,
+ unsigned char *data,int len,int *copy)
+ {
+ return ctx->get_session_cb;
+ }
+
+void SSL_CTX_set_info_callback(SSL_CTX *ctx,
+ void (*cb)(const SSL *ssl,int type,int val))
+ {
+ ctx->info_callback=cb;
+ }
+
+void (*SSL_CTX_get_info_callback(SSL_CTX *ctx))(const SSL *ssl,int type,int val)
+ {
+ return ctx->info_callback;
+ }
+
+void SSL_CTX_set_client_cert_cb(SSL_CTX *ctx,
+ int (*cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey))
+ {
+ ctx->client_cert_cb=cb;
+ }
+
+int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx))(SSL * ssl, X509 ** x509 , EVP_PKEY **pkey)
+ {
+ return ctx->client_cert_cb;
+ }
+
+#ifndef OPENSSL_NO_ENGINE
+int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e)
+ {
+ if (!ENGINE_init(e))
+ {
+ SSLerr(SSL_F_SSL_CTX_SET_CLIENT_CERT_ENGINE, ERR_R_ENGINE_LIB);
+ return 0;
+ }
+ if(!ENGINE_get_ssl_client_cert_function(e))
+ {
+ SSLerr(SSL_F_SSL_CTX_SET_CLIENT_CERT_ENGINE, SSL_R_NO_CLIENT_CERT_METHOD);
+ ENGINE_finish(e);
+ return 0;
+ }
+ ctx->client_cert_engine = e;
+ return 1;
+ }
+#endif
+
+void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx,
+ int (*cb)(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len))
+ {
+ ctx->app_gen_cookie_cb=cb;
+ }
+
+void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
+ int (*cb)(SSL *ssl, unsigned char *cookie, unsigned int cookie_len))
+ {
+ ctx->app_verify_cookie_cb=cb;
+ }
+
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