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Make sure that cert is never NULL

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Also removes for it being NULL

Reviewed-by: Matt Caswell <matt@openssl.org>
This commit is contained in:
Kurt Roeckx
2015-03-18 19:02:50 +01:00
parent 06e6aa47de
commit 24a0d3933d
3 changed files with 19 additions and 36 deletions
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47
ssl/ssl_lib.c
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@@ -883,8 +883,6 @@ STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s)
*/
void SSL_copy_session_id(SSL *t, const SSL *f)
{
CERT *tmp;
/* Do we need to to SSL locking? */
if(!SSL_set_session(t, SSL_get_session(f))) {
/* How do we handle this!! void function */
@@ -900,14 +898,9 @@ void SSL_copy_session_id(SSL *t, const SSL *f)
t->method->ssl_new(t); /* setup new */
}
tmp = t->cert;
if (f->cert != NULL) {
CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
t->cert = f->cert;
} else
t->cert = NULL;
if (tmp != NULL)
ssl_cert_free(tmp);
CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT);
ssl_cert_free(t->cert);
t->cert = f->cert;
if(!SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length)) {
/* Really should do something about this..but void function - ignore */
;
@@ -918,7 +911,7 @@ void SSL_copy_session_id(SSL *t, const SSL *f)
int SSL_CTX_check_private_key(const SSL_CTX *ctx)
{
if ((ctx == NULL) ||
(ctx->cert == NULL) || (ctx->cert->key->x509 == NULL)) {
(ctx->cert->key->x509 == NULL)) {
SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY,
SSL_R_NO_CERTIFICATE_ASSIGNED);
return (0);
@@ -939,10 +932,6 @@ int SSL_check_private_key(const SSL *ssl)
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER);
return (0);
}
if (ssl->cert == NULL) {
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
return 0;
}
if (ssl->cert->key->x509 == NULL) {
SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED);
return (0);
@@ -3055,26 +3044,28 @@ SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl)
SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx)
{
CERT *ocert = ssl->cert;
CERT *new_cert;
if (ssl->ctx == ctx)
return ssl->ctx;
#ifndef OPENSSL_NO_TLSEXT
if (ctx == NULL)
ctx = ssl->initial_ctx;
#endif
ssl->cert = ssl_cert_dup(ctx->cert);
if (ocert) {
/* Preserve any already negotiated parameters */
if (ssl->server) {
ssl->cert->peer_sigalgs = ocert->peer_sigalgs;
ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen;
ocert->peer_sigalgs = NULL;
ssl->cert->ciphers_raw = ocert->ciphers_raw;
ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen;
ocert->ciphers_raw = NULL;
}
ssl_cert_free(ocert);
new_cert = ssl_cert_dup(ctx->cert);
if (new_cert == NULL) {
return NULL;
}
/* Preserve any already negotiated parameters */
if (ssl->server) {
new_cert->peer_sigalgs = ssl->cert->peer_sigalgs;
new_cert->peer_sigalgslen = ssl->cert->peer_sigalgslen;
ssl->cert->peer_sigalgs = NULL;
new_cert->ciphers_raw = ssl->cert->ciphers_raw;
new_cert->ciphers_rawlen = ssl->cert->ciphers_rawlen;
ssl->cert->ciphers_raw = NULL;
}
ssl_cert_free(ssl->cert);
ssl->cert = new_cert;
/*
* Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH),