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-rw-r--r--apps/pkcs12.c42
-rw-r--r--crypto/ts/ts_rsp_verify.c3
-rw-r--r--crypto/x509/x509_vfy.c39
-rw-r--r--crypto/x509/x509_vfy.h2
4 files changed, 43 insertions, 43 deletions
diff --git a/apps/pkcs12.c b/apps/pkcs12.c
index e41b445a50..cbb75b7d5f 100644
--- a/apps/pkcs12.c
+++ b/apps/pkcs12.c
@@ -79,7 +79,8 @@ const EVP_CIPHER *enc;
# define CLCERTS 0x8
# define CACERTS 0x10
-int get_cert_chain(X509 *cert, X509_STORE *store, STACK_OF(X509) **chain);
+static int get_cert_chain(X509 *cert, X509_STORE *store,
+ STACK_OF(X509) **chain);
int dump_certs_keys_p12(BIO *out, PKCS12 *p12, char *pass, int passlen,
int options, char *pempass);
int dump_certs_pkeys_bags(BIO *out, STACK_OF(PKCS12_SAFEBAG) *bags,
@@ -594,7 +595,7 @@ int MAIN(int argc, char **argv)
vret = get_cert_chain(ucert, store, &chain2);
X509_STORE_free(store);
- if (!vret) {
+ if (vret == X509_V_OK) {
/* Exclude verified certificate */
for (i = 1; i < sk_X509_num(chain2); i++)
sk_X509_push(certs, sk_X509_value(chain2, i));
@@ -602,7 +603,7 @@ int MAIN(int argc, char **argv)
X509_free(sk_X509_value(chain2, 0));
sk_X509_free(chain2);
} else {
- if (vret >= 0)
+ if (vret != X509_V_ERR_UNSPECIFIED)
BIO_printf(bio_err, "Error %s getting chain.\n",
X509_verify_cert_error_string(vret));
else
@@ -906,36 +907,25 @@ int dump_certs_pkeys_bag(BIO *out, PKCS12_SAFEBAG *bag, char *pass,
/* Given a single certificate return a verified chain or NULL if error */
-/* Hope this is OK .... */
-
-int get_cert_chain(X509 *cert, X509_STORE *store, STACK_OF(X509) **chain)
+static int get_cert_chain(X509 *cert, X509_STORE *store,
+ STACK_OF(X509) **chain)
{
X509_STORE_CTX store_ctx;
- STACK_OF(X509) *chn;
+ STACK_OF(X509) *chn = NULL;
int i = 0;
- /*
- * FIXME: Should really check the return status of X509_STORE_CTX_init
- * for an error, but how that fits into the return value of this function
- * is less obvious.
- */
- X509_STORE_CTX_init(&store_ctx, store, cert, NULL);
- if (X509_verify_cert(&store_ctx) <= 0) {
- i = X509_STORE_CTX_get_error(&store_ctx);
- if (i == 0)
- /*
- * avoid returning 0 if X509_verify_cert() did not set an
- * appropriate error value in the context
- */
- i = -1;
- chn = NULL;
- goto err;
- } else
+ if (!X509_STORE_CTX_init(&store_ctx, store, cert, NULL)) {
+ *chain = NULL;
+ return X509_V_ERR_UNSPECIFIED;
+ }
+
+ if (X509_verify_cert(&store_ctx) > 0)
chn = X509_STORE_CTX_get1_chain(&store_ctx);
- err:
+ else if ((i = X509_STORE_CTX_get_error(&store_ctx)) == 0)
+ i = X509_V_ERR_UNSPECIFIED;
+
X509_STORE_CTX_cleanup(&store_ctx);
*chain = chn;
-
return i;
}
diff --git a/crypto/ts/ts_rsp_verify.c b/crypto/ts/ts_rsp_verify.c
index da8991173c..29aa5a497e 100644
--- a/crypto/ts/ts_rsp_verify.c
+++ b/crypto/ts/ts_rsp_verify.c
@@ -255,7 +255,8 @@ static int TS_verify_cert(X509_STORE *store, STACK_OF(X509) *untrusted,
/* chain is an out argument. */
*chain = NULL;
- X509_STORE_CTX_init(&cert_ctx, store, signer, untrusted);
+ if (!X509_STORE_CTX_init(&cert_ctx, store, signer, untrusted))
+ return 0;
X509_STORE_CTX_set_purpose(&cert_ctx, X509_PURPOSE_TIMESTAMP_SIGN);
i = X509_verify_cert(&cert_ctx);
if (i <= 0) {
diff --git a/crypto/x509/x509_vfy.c b/crypto/x509/x509_vfy.c
index ab94948f01..0429767032 100644
--- a/crypto/x509/x509_vfy.c
+++ b/crypto/x509/x509_vfy.c
@@ -2283,9 +2283,10 @@ int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
ctx->current_reasons = 0;
ctx->tree = NULL;
ctx->parent = NULL;
+ /* Zero ex_data to make sure we're cleanup-safe */
+ memset(&ctx->ex_data, 0, sizeof(ctx->ex_data));
ctx->param = X509_VERIFY_PARAM_new();
-
if (!ctx->param) {
X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
return 0;
@@ -2294,7 +2295,6 @@ int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
/*
* Inherit callbacks and flags from X509_STORE if not set use defaults.
*/
-
if (store)
ret = X509_VERIFY_PARAM_inherit(ctx->param, store->param);
else
@@ -2302,6 +2302,7 @@ int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
if (store) {
ctx->verify_cb = store->verify_cb;
+ /* Seems to always be 0 in OpenSSL, else must be idempotent */
ctx->cleanup = store->cleanup;
} else
ctx->cleanup = 0;
@@ -2312,7 +2313,7 @@ int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
if (ret == 0) {
X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
- return 0;
+ goto err;
}
if (store && store->check_issued)
@@ -2367,19 +2368,18 @@ int X509_STORE_CTX_init(X509_STORE_CTX *ctx, X509_STORE *store, X509 *x509,
ctx->check_policy = check_policy;
+ if (CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE_CTX, ctx,
+ &ctx->ex_data))
+ return 1;
+ X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
+
+ err:
/*
- * This memset() can't make any sense anyway, so it's removed. As
- * X509_STORE_CTX_cleanup does a proper "free" on the ex_data, we put a
- * corresponding "new" here and remove this bogus initialisation.
+ * On error clean up allocated storage, if the store context was not
+ * allocated with X509_STORE_CTX_new() this is our last chance to do so.
*/
- /* memset(&(ctx->ex_data),0,sizeof(CRYPTO_EX_DATA)); */
- if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509_STORE_CTX, ctx,
- &(ctx->ex_data))) {
- OPENSSL_free(ctx);
- X509err(X509_F_X509_STORE_CTX_INIT, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- return 1;
+ X509_STORE_CTX_cleanup(ctx);
+ return 0;
}
/*
@@ -2395,8 +2395,17 @@ void X509_STORE_CTX_trusted_stack(X509_STORE_CTX *ctx, STACK_OF(X509) *sk)
void X509_STORE_CTX_cleanup(X509_STORE_CTX *ctx)
{
- if (ctx->cleanup)
+ /*
+ * We need to be idempotent because, unfortunately, free() also calls
+ * cleanup(), so the natural call sequence new(), init(), cleanup(), free()
+ * calls cleanup() for the same object twice! Thus we must zero the
+ * pointers below after they're freed!
+ */
+ /* Seems to always be 0 in OpenSSL, do this at most once. */
+ if (ctx->cleanup != NULL) {
ctx->cleanup(ctx);
+ ctx->cleanup = NULL;
+ }
if (ctx->param != NULL) {
if (ctx->parent == NULL)
X509_VERIFY_PARAM_free(ctx->param);
diff --git a/crypto/x509/x509_vfy.h b/crypto/x509/x509_vfy.h
index bd8613c62b..2663e1c0a3 100644
--- a/crypto/x509/x509_vfy.h
+++ b/crypto/x509/x509_vfy.h
@@ -313,7 +313,7 @@ void X509_STORE_CTX_set_depth(X509_STORE_CTX *ctx, int depth);
X509_LOOKUP_ctrl((x),X509_L_ADD_DIR,(name),(long)(type),NULL)
# define X509_V_OK 0
-/* illegal error (for uninitialized values, to avoid X509_V_OK): 1 */
+# define X509_V_ERR_UNSPECIFIED 1
# define X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT 2
# define X509_V_ERR_UNABLE_TO_GET_CRL 3
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 18:07:26 +0000