-/* ssl/ssl_sess.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* somebody doesn't free ssl->session between when we check it's non-null
* and when we up the reference count.
*/
- CRYPTO_w_lock(CRYPTO_LOCK_SSL_SESSION);
+ CRYPTO_THREAD_read_lock(ssl->lock);
sess = ssl->session;
if (sess)
- sess->references++;
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL_SESSION);
- return (sess);
-}
-
-int SSL_SESSION_get_ex_new_index(long argl, void *argp,
- CRYPTO_EX_new *new_func,
- CRYPTO_EX_dup *dup_func,
- CRYPTO_EX_free *free_func)
-{
- return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, argl, argp,
- new_func, dup_func, free_func);
+ SSL_SESSION_up_ref(sess);
+ CRYPTO_THREAD_unlock(ssl->lock);
+ return sess;
}
int SSL_SESSION_set_ex_data(SSL_SESSION *s, int idx, void *arg)
{
SSL_SESSION *ss;
- ss = OPENSSL_malloc(sizeof(*ss));
+ ss = OPENSSL_zalloc(sizeof(*ss));
if (ss == NULL) {
SSLerr(SSL_F_SSL_SESSION_NEW, ERR_R_MALLOC_FAILURE);
- return (0);
+ return NULL;
}
- memset(ss, 0, sizeof(*ss));
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 = (unsigned long)time(NULL);
- ss->prev = NULL;
- ss->next = NULL;
- ss->compress_meth = 0;
- ss->tlsext_hostname = NULL;
-#ifndef OPENSSL_NO_EC
- ss->tlsext_ecpointformatlist_length = 0;
- ss->tlsext_ecpointformatlist = NULL;
- ss->tlsext_ellipticcurvelist_length = 0;
- ss->tlsext_ellipticcurvelist = NULL;
-#endif
+ ss->lock = CRYPTO_THREAD_lock_new();
+ if (ss->lock == NULL) {
+ SSLerr(SSL_F_SSL_SESSION_NEW, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(ss);
+ return NULL;
+ }
+
CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data);
-#ifndef OPENSSL_NO_PSK
- ss->psk_identity_hint = NULL;
- ss->psk_identity = NULL;
-#endif
-#ifndef OPENSSL_NO_SRP
- ss->srp_username = NULL;
-#endif
- return (ss);
+
+ return ss;
}
/*
dest->references = 1;
+ dest->lock = CRYPTO_THREAD_lock_new();
+ if (dest->lock == NULL)
+ goto err;
+
if (src->peer != NULL)
- CRYPTO_add(&src->peer->references, 1, CRYPTO_LOCK_X509);
+ X509_up_ref(src->peer);
+
+ if (src->peer_chain != NULL) {
+ dest->peer_chain = X509_chain_up_ref(src->peer_chain);
+ if (dest->peer_chain == NULL)
+ goto err;
+ }
#ifndef OPENSSL_NO_PSK
if (src->psk_identity_hint) {
- dest->psk_identity_hint = BUF_strdup(src->psk_identity_hint);
+ dest->psk_identity_hint = OPENSSL_strdup(src->psk_identity_hint);
if (dest->psk_identity_hint == NULL) {
goto err;
}
}
if (src->psk_identity) {
- dest->psk_identity = BUF_strdup(src->psk_identity);
+ dest->psk_identity = OPENSSL_strdup(src->psk_identity);
if (dest->psk_identity == NULL) {
goto err;
}
}
if (src->tlsext_hostname) {
- dest->tlsext_hostname = BUF_strdup(src->tlsext_hostname);
+ dest->tlsext_hostname = OPENSSL_strdup(src->tlsext_hostname);
if (dest->tlsext_hostname == NULL) {
goto err;
}
#ifndef OPENSSL_NO_EC
if (src->tlsext_ecpointformatlist) {
dest->tlsext_ecpointformatlist =
- BUF_memdup(src->tlsext_ecpointformatlist,
+ OPENSSL_memdup(src->tlsext_ecpointformatlist,
src->tlsext_ecpointformatlist_length);
if (dest->tlsext_ecpointformatlist == NULL)
goto err;
}
if (src->tlsext_ellipticcurvelist) {
dest->tlsext_ellipticcurvelist =
- BUF_memdup(src->tlsext_ellipticcurvelist,
+ OPENSSL_memdup(src->tlsext_ellipticcurvelist,
src->tlsext_ellipticcurvelist_length);
if (dest->tlsext_ellipticcurvelist == NULL)
goto err;
#endif
if (ticket != 0) {
- dest->tlsext_tick = BUF_memdup(src->tlsext_tick, src->tlsext_ticklen);
+ dest->tlsext_tick = OPENSSL_memdup(src->tlsext_tick, src->tlsext_ticklen);
if(dest->tlsext_tick == NULL)
goto err;
} else {
#ifndef OPENSSL_NO_SRP
if (src->srp_username) {
- dest->srp_username = BUF_strdup(src->srp_username);
+ dest->srp_username = OPENSSL_strdup(src->srp_username);
if (dest->srp_username == NULL) {
goto err;
}
}
/* Choose which callback will set the session ID */
- CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_read_lock(s->lock);
+ CRYPTO_THREAD_read_lock(s->session_ctx->lock);
if (s->generate_session_id)
cb = s->generate_session_id;
else if (s->session_ctx->generate_session_id)
cb = s->session_ctx->generate_session_id;
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_unlock(s->session_ctx->lock);
+ CRYPTO_THREAD_unlock(s->lock);
/* Choose a session ID */
tmp = ss->session_id_length;
if (!cb(s, ss->session_id, &tmp)) {
* Don't allow the callback to set the session length to zero. nor
* set it higher than it was.
*/
- if (!tmp || (tmp > ss->session_id_length)) {
+ if (tmp == 0 || tmp > ss->session_id_length) {
/* The callback set an illegal length */
SSLerr(SSL_F_SSL_GET_NEW_SESSION,
SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH);
sess_id_done:
if (s->tlsext_hostname) {
- ss->tlsext_hostname = BUF_strdup(s->tlsext_hostname);
+ ss->tlsext_hostname = OPENSSL_strdup(s->tlsext_hostname);
if (ss->tlsext_hostname == NULL) {
SSLerr(SSL_F_SSL_GET_NEW_SESSION, ERR_R_INTERNAL_ERROR);
SSL_SESSION_free(ss);
ss->ssl_version = s->version;
ss->verify_result = X509_V_OK;
+ /* If client supports extended master secret set it in session */
+ if (s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS)
+ ss->flags |= SSL_SESS_FLAG_EXTMS;
+
return (1);
}
* ssl_get_prev attempts to find an SSL_SESSION to be used to resume this
* connection. It is only called by servers.
*
- * session_id: points at the session ID in the ClientHello. This code will
- * read past the end of this in order to parse out the session ticket
- * extension, if any.
- * len: the length of the session ID.
- * limit: a pointer to the first byte after the ClientHello.
+ * ext: ClientHello extensions (including length prefix)
+ * session_id: ClientHello session ID.
*
* Returns:
* -1: error
* - Both for new and resumed sessions, s->tlsext_ticket_expected is set to 1
* if the server should issue a new session ticket (to 0 otherwise).
*/
-int ssl_get_prev_session(SSL *s, unsigned char *session_id, int len,
- const unsigned char *limit)
+int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id)
{
/* This is used only by servers. */
int try_session_cache = 1;
int r;
- if (len < 0 || len > SSL_MAX_SSL_SESSION_ID_LENGTH)
- goto err;
-
- if (session_id + len > limit) {
- fatal = 1;
- goto err;
- }
-
- if (len == 0)
+ if (PACKET_remaining(session_id) == 0)
try_session_cache = 0;
- /* sets s->tlsext_ticket_expected */
- r = tls1_process_ticket(s, session_id, len, limit, &ret);
+ /* sets s->tlsext_ticket_expected and extended master secret flag */
+ r = tls_check_serverhello_tlsext_early(s, ext, session_id, &ret);
switch (r) {
case -1: /* Error during processing */
fatal = 1;
!(s->session_ctx->session_cache_mode &
SSL_SESS_CACHE_NO_INTERNAL_LOOKUP)) {
SSL_SESSION data;
+ size_t local_len;
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);
+ if (!PACKET_copy_all(session_id, data.session_id,
+ sizeof(data.session_id),
+ &local_len)) {
+ goto err;
+ }
+ data.session_id_length = local_len;
+ CRYPTO_THREAD_read_lock(s->session_ctx->lock);
ret = lh_SSL_SESSION_retrieve(s->session_ctx->sessions, &data);
if (ret != NULL) {
/* don't allow other threads to steal it: */
- CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_SSL_SESSION);
+ SSL_SESSION_up_ref(ret);
}
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_unlock(s->session_ctx->lock);
if (ret == NULL)
s->session_ctx->stats.sess_miss++;
}
if (try_session_cache &&
ret == NULL && s->session_ctx->get_session_cb != NULL) {
int copy = 1;
+ ret = s->session_ctx->get_session_cb(s, PACKET_data(session_id),
+ PACKET_remaining(session_id),
+ ©);
- if ((ret = s->session_ctx->get_session_cb(s, session_id, len, ©))) {
+ if (ret != NULL) {
s->session_ctx->stats.sess_cb_hit++;
/*
* thread-safe).
*/
if (copy)
- CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_SSL_SESSION);
+ SSL_SESSION_up_ref(ret);
/*
* Add the externally cached session to the internal cache as
goto err;
}
+ /* Check extended master secret extension consistency */
+ if (ret->flags & SSL_SESS_FLAG_EXTMS) {
+ /* If old session includes extms, but new does not: abort handshake */
+ if (!(s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS)) {
+ SSLerr(SSL_F_SSL_GET_PREV_SESSION, SSL_R_INCONSISTENT_EXTMS);
+ ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
+ fatal = 1;
+ goto err;
+ }
+ } else if (s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) {
+ /* If new session includes extms, but old does not: do not resume */
+ goto err;
+ }
+
s->session_ctx->stats.sess_hit++;
SSL_SESSION_free(s->session);
* it has two ways of access: each session is in a doubly linked list and
* an lhash
*/
- CRYPTO_add(&c->references, 1, CRYPTO_LOCK_SSL_SESSION);
+ SSL_SESSION_up_ref(c);
/*
* if session c is in already in cache, we take back the increment later
*/
- CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_write_lock(ctx->lock);
s = lh_SSL_SESSION_insert(ctx->sessions, c);
/*
}
}
}
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
- return (ret);
+ CRYPTO_THREAD_unlock(ctx->lock);
+ return ret;
}
int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c)
if ((c != NULL) && (c->session_id_length != 0)) {
if (lck)
- CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_write_lock(ctx->lock);
if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) {
ret = 1;
r = lh_SSL_SESSION_delete(ctx->sessions, c);
}
if (lck)
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_unlock(ctx->lock);
if (ret) {
r->not_resumable = 1;
if (ss == NULL)
return;
- i = CRYPTO_add(&ss->references, -1, CRYPTO_LOCK_SSL_SESSION);
-#ifdef REF_PRINT
- REF_PRINT("SSL_SESSION", ss);
-#endif
+ CRYPTO_atomic_add(&ss->references, -1, &i, ss->lock);
+ REF_PRINT_COUNT("SSL_SESSION", ss);
if (i > 0)
return;
-#ifdef REF_CHECK
- if (i < 0) {
- fprintf(stderr, "SSL_SESSION_free, bad reference count\n");
- abort(); /* ok */
- }
-#endif
+ REF_ASSERT_ISNT(i < 0);
CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data);
#ifndef OPENSSL_NO_SRP
OPENSSL_free(ss->srp_username);
#endif
+ CRYPTO_THREAD_lock_free(ss->lock);
OPENSSL_clear_free(ss, sizeof(*ss));
}
+int SSL_SESSION_up_ref(SSL_SESSION *ss)
+{
+ int i;
+
+ if (CRYPTO_atomic_add(&ss->references, 1, &i, ss->lock) <= 0)
+ return 0;
+
+ REF_PRINT_COUNT("SSL_SESSION", ss);
+ REF_ASSERT_ISNT(i < 2);
+ return ((i > 1) ? 1 : 0);
+}
+
int SSL_set_session(SSL *s, SSL_SESSION *session)
{
int ret = 0;
return (0);
}
- /* CRYPTO_w_lock(CRYPTO_LOCK_SSL); */
- CRYPTO_add(&session->references, 1, CRYPTO_LOCK_SSL_SESSION);
+ SSL_SESSION_up_ref(session);
SSL_SESSION_free(s->session);
s->session = session;
s->verify_result = s->session->verify_result;
- /* CRYPTO_w_unlock(CRYPTO_LOCK_SSL); */
ret = 1;
} else {
SSL_SESSION_free(s->session);
int *secret_len,
STACK_OF(SSL_CIPHER)
*peer_ciphers,
- SSL_CIPHER
+ const SSL_CIPHER
**cipher,
void *arg),
void *arg)
s->tlsext_session_ticket = NULL;
s->tlsext_session_ticket =
OPENSSL_malloc(sizeof(TLS_SESSION_TICKET_EXT) + ext_len);
- if (!s->tlsext_session_ticket) {
+ if (s->tlsext_session_ticket == NULL) {
SSLerr(SSL_F_SSL_SET_SESSION_TICKET_EXT, ERR_R_MALLOC_FAILURE);
return 0;
}
LHASH_OF(SSL_SESSION) *cache;
} TIMEOUT_PARAM;
-static void timeout_doall_arg(SSL_SESSION *s, TIMEOUT_PARAM *p)
+static void timeout_cb(SSL_SESSION *s, TIMEOUT_PARAM *p)
{
if ((p->time == 0) || (p->time > (s->time + s->timeout))) { /* timeout */
/*
}
}
-static IMPLEMENT_LHASH_DOALL_ARG_FN(timeout, SSL_SESSION, TIMEOUT_PARAM)
+IMPLEMENT_LHASH_DOALL_ARG(SSL_SESSION, TIMEOUT_PARAM);
void SSL_CTX_flush_sessions(SSL_CTX *s, long t)
{
if (tp.cache == NULL)
return;
tp.time = t;
- CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_write_lock(s->lock);
i = CHECKED_LHASH_OF(SSL_SESSION, tp.cache)->down_load;
CHECKED_LHASH_OF(SSL_SESSION, tp.cache)->down_load = 0;
- lh_SSL_SESSION_doall_arg(tp.cache, LHASH_DOALL_ARG_FN(timeout),
- TIMEOUT_PARAM, &tp);
+ lh_SSL_SESSION_doall_TIMEOUT_PARAM(tp.cache, timeout_cb, &tp);
CHECKED_LHASH_OF(SSL_SESSION, tp.cache)->down_load = i;
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+ CRYPTO_THREAD_unlock(s->lock);
}
int ssl_clear_bad_session(SSL *s)
void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx,
SSL_SESSION *(*cb) (struct ssl_st *ssl,
- unsigned char *data, int len,
- int *copy))
+ const 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,
+ const unsigned char *data,
int len, int *copy) {
return ctx->get_session_cb;
}
}
void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
- int (*cb) (SSL *ssl, unsigned char *cookie,
+ int (*cb) (SSL *ssl, const unsigned char *cookie,
unsigned int cookie_len))
{
ctx->app_verify_cookie_cb = cb;
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