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ikev2: Add an option to disable constraints against signature schemes

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If this is disabled the schemes configured in `rightauth` are only
checked against signature schemes used in the certificate chain and
signature schemes used during IKEv2 are ignored.

Disabling this could be helpful if existing connections with peers that
don't support RFC 7427 use signature schemes in `rightauth` to verify
certificate chains.
This commit is contained in:
Tobias Brunner
2015-03-04 13:54:11 +01:00
parent 31bccf4ba1
commit b67ae0f89c
2 changed files with 19 additions and 1 deletions
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src/libcharon/sa/ikev2/authenticators/pubkey_authenticator.c
+11 -1
View File
@@ -54,6 +54,11 @@ struct private_pubkey_authenticator_t {
* Reserved bytes of ID payload
*/
char reserved[3];
/**
* Whether to store signature schemes on remote auth configs.
*/
bool store_signature_scheme;
};
/**
@@ -325,8 +330,11 @@ METHOD(authenticator_t, process, status_t,
auth_method == AUTH_DS ? scheme : auth_method);
status = SUCCESS;
auth->merge(auth, current_auth, FALSE);
auth->add(auth, AUTH_RULE_SIGNATURE_SCHEME, (uintptr_t)scheme);
auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
if (this->store_signature_scheme)
{
auth->add(auth, AUTH_RULE_SIGNATURE_SCHEME, (uintptr_t)scheme);
}
break;
}
else
@@ -399,6 +407,8 @@ pubkey_authenticator_t *pubkey_authenticator_create_verifier(ike_sa_t *ike_sa,
.ike_sa = ike_sa,
.ike_sa_init = received_init,
.nonce = sent_nonce,
.store_signature_scheme = lib->settings->get_bool(lib->settings,
"%s.signature_authentication_constraints", TRUE, lib->ns),
);
memcpy(this->reserved, reserved, sizeof(this->reserved));