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Cleanup use of X509 STORE locks

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Cosmetic changes to use the X509_STORE_lock/unlock functions.
Renamed some ctx variables to store.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9366)
This commit is contained in:
Shane Lontis 2019-07-15 12:42:38 +10:00
parent 3b438ef95b
commit 7a9abccde7
1 changed files with 40 additions and 37 deletions
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77
crypto/x509/x509_lu.c
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@ -289,24 +289,25 @@ X509_OBJECT *X509_STORE_CTX_get_obj_by_subject(X509_STORE_CTX *vs,
int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
X509_NAME *name, X509_OBJECT *ret)
{
X509_STORE *ctx = vs->ctx;
X509_STORE *store = vs->ctx;
X509_LOOKUP *lu;
X509_OBJECT stmp, *tmp;
int i, j;
if (ctx == NULL)
if (store == NULL)
return 0;
stmp.type = X509_LU_NONE;
stmp.data.ptr = NULL;
CRYPTO_THREAD_write_lock(ctx->lock);
tmp = X509_OBJECT_retrieve_by_subject(ctx->objs, type, name);
CRYPTO_THREAD_unlock(ctx->lock);
X509_STORE_lock(store);
tmp = X509_OBJECT_retrieve_by_subject(store->objs, type, name);
X509_STORE_unlock(store);
if (tmp == NULL || type == X509_LU_CRL) {
for (i = 0; i < sk_X509_LOOKUP_num(ctx->get_cert_methods); i++) {
lu = sk_X509_LOOKUP_value(ctx->get_cert_methods, i);
for (i = 0; i < sk_X509_LOOKUP_num(store->get_cert_methods); i++) {
lu = sk_X509_LOOKUP_value(store->get_cert_methods, i);
j = X509_LOOKUP_by_subject(lu, type, name, &stmp);
if (j) {
tmp = &stmp;
@ -325,7 +326,7 @@ int X509_STORE_CTX_get_by_subject(X509_STORE_CTX *vs, X509_LOOKUP_TYPE type,
return 1;
}
static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
static int x509_store_add(X509_STORE *store, void *x, int crl) {
X509_OBJECT *obj;
int ret = 0, added = 0;
@ -344,16 +345,14 @@ static int x509_store_add(X509_STORE *ctx, void *x, int crl) {
}
X509_OBJECT_up_ref_count(obj);
CRYPTO_THREAD_write_lock(ctx->lock);
if (X509_OBJECT_retrieve_match(ctx->objs, obj)) {
X509_STORE_lock(store);
if (X509_OBJECT_retrieve_match(store->objs, obj)) {
ret = 1;
} else {
added = sk_X509_OBJECT_push(ctx->objs, obj);
added = sk_X509_OBJECT_push(store->objs, obj);
ret = added != 0;
}
CRYPTO_THREAD_unlock(ctx->lock);
X509_STORE_unlock(store);
if (added == 0) /* obj not pushed */
X509_OBJECT_free(obj);
@ -534,12 +533,13 @@ STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
STACK_OF(X509) *sk = NULL;
X509 *x;
X509_OBJECT *obj;
X509_STORE *store = ctx->ctx;
if (ctx->ctx == NULL)
if (store == NULL)
return NULL;
CRYPTO_THREAD_write_lock(ctx->ctx->lock);
idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
X509_STORE_lock(store);
idx = x509_object_idx_cnt(store->objs, X509_LU_X509, nm, &cnt);
if (idx < 0) {
/*
* Nothing found in cache: do lookup to possibly add new objects to
@ -547,7 +547,8 @@ STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
*/
X509_OBJECT *xobj = X509_OBJECT_new();
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
if (xobj == NULL)
return NULL;
if (!X509_STORE_CTX_get_by_subject(ctx, X509_LU_X509, nm, xobj)) {
@ -555,27 +556,27 @@ STACK_OF(X509) *X509_STORE_CTX_get1_certs(X509_STORE_CTX *ctx, X509_NAME *nm)
return NULL;
}
X509_OBJECT_free(xobj);
CRYPTO_THREAD_write_lock(ctx->ctx->lock);
idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_X509, nm, &cnt);
X509_STORE_lock(store);
idx = x509_object_idx_cnt(store->objs, X509_LU_X509, nm, &cnt);
if (idx < 0) {
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
return NULL;
}
}
sk = sk_X509_new_null();
for (i = 0; i < cnt; i++, idx++) {
obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
obj = sk_X509_OBJECT_value(store->objs, idx);
x = obj->data.x509;
X509_up_ref(x);
if (!sk_X509_push(sk, x)) {
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
X509_free(x);
sk_X509_pop_free(sk, X509_free);
return NULL;
}
}
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
return sk;
}
@ -585,37 +586,38 @@ STACK_OF(X509_CRL) *X509_STORE_CTX_get1_crls(X509_STORE_CTX *ctx, X509_NAME *nm)
STACK_OF(X509_CRL) *sk = sk_X509_CRL_new_null();
X509_CRL *x;
X509_OBJECT *obj, *xobj = X509_OBJECT_new();
X509_STORE *store = ctx->ctx;
/* Always do lookup to possibly add new CRLs to cache */
if (sk == NULL
|| xobj == NULL
|| ctx->ctx == NULL
|| store == NULL
|| !X509_STORE_CTX_get_by_subject(ctx, X509_LU_CRL, nm, xobj)) {
X509_OBJECT_free(xobj);
sk_X509_CRL_free(sk);
return NULL;
}
X509_OBJECT_free(xobj);
CRYPTO_THREAD_write_lock(ctx->ctx->lock);
idx = x509_object_idx_cnt(ctx->ctx->objs, X509_LU_CRL, nm, &cnt);
X509_STORE_lock(store);
idx = x509_object_idx_cnt(store->objs, X509_LU_CRL, nm, &cnt);
if (idx < 0) {
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
sk_X509_CRL_free(sk);
return NULL;
}
for (i = 0; i < cnt; i++, idx++) {
obj = sk_X509_OBJECT_value(ctx->ctx->objs, idx);
obj = sk_X509_OBJECT_value(store->objs, idx);
x = obj->data.crl;
X509_CRL_up_ref(x);
if (!sk_X509_CRL_push(sk, x)) {
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
X509_CRL_free(x);
sk_X509_CRL_pop_free(sk, X509_CRL_free);
return NULL;
}
}
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
return sk;
}
@ -663,6 +665,7 @@ int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
{
X509_NAME *xn;
X509_OBJECT *obj = X509_OBJECT_new(), *pobj = NULL;
X509_STORE *store = ctx->ctx;
int i, ok, idx, ret;
if (obj == NULL)
@ -685,18 +688,18 @@ int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
}
X509_OBJECT_free(obj);
if (ctx->ctx == NULL)
if (store == NULL)
return 0;
/* Else find index of first cert accepted by 'check_issued' */
ret = 0;
CRYPTO_THREAD_write_lock(ctx->ctx->lock);
idx = X509_OBJECT_idx_by_subject(ctx->ctx->objs, X509_LU_X509, xn);
X509_STORE_lock(store);
idx = X509_OBJECT_idx_by_subject(store->objs, X509_LU_X509, xn);
if (idx != -1) { /* should be true as we've had at least one
* match */
/* Look through all matching certs for suitable issuer */
for (i = idx; i < sk_X509_OBJECT_num(ctx->ctx->objs); i++) {
pobj = sk_X509_OBJECT_value(ctx->ctx->objs, i);
for (i = idx; i < sk_X509_OBJECT_num(store->objs); i++) {
pobj = sk_X509_OBJECT_value(store->objs, i);
/* See if we've run past the matches */
if (pobj->type != X509_LU_X509)
break;
@ -717,7 +720,7 @@ int X509_STORE_CTX_get1_issuer(X509 **issuer, X509_STORE_CTX *ctx, X509 *x)
}
}
}
CRYPTO_THREAD_unlock(ctx->ctx->lock);
X509_STORE_unlock(store);
if (*issuer)
X509_up_ref(*issuer);
return ret;