A sample configuration:
ikev2 "win10host" passive esp \
from 0.0.0.0/0 to 10.1.1.51 \
local any peer any \
ikesa auth hmac-sha2-384 enc aes-256 prf hmac-sha2-384 group modp2048 \
childsa enc aes-256-gcm group modp2048 \
srcid "/C=US/ST=New York/L=NYC/O=Stoo Labs/OU=iked/CN=foo.stoo.org" \
dstid "/C=US/ST=New York/L=NYC/O=Stoo Labs/OU=iked/CN=bar.stoo.org" \
rsa \
config address 10.1.1.51 \
config name-server 10.1.1.5 \
config name-server 10.1.1.6 \
tag "$name-$id"
The above configuration worked fine with iked in OpenBSD 6.0. It broke
as of 6.1 with the following error:
set_policy_auth_method: ikeauth policy mismatch, rsa specified, but only
rfc7427 possible
set_policy: failed to set policy auth method for
/etc/iked.conf: 17: create_ike failed
/etc/iked.conf: no valid configuration rules found
I use a CA certificate and signed host certificates generated using a
process like the EXAMPLES section in ikectl(8). I'm a bit surprised
that I could not find anyone else who has seen this problem, so maybe
I'm doing something strange without realizing it.
The following patch restores the old functionality, though I include it
mainly for demonstration purposes. I'm happy to improve it and
resubmit, depending on feedback.
-TimS
Index: parse.y
===================================================================
RCS file: /cvs/src/sbin/iked/parse.y,v
retrieving revision 1.65
diff -u -p -r1.65 parse.y
--- parse.y 24 Apr 2017 07:07:25 -0000 1.65
+++ parse.y 17 May 2017 04:58:34 -0000
@@ -1735,6 +1735,8 @@ set_policy_auth_method(const char *peeri
method = IKEV2_AUTH_NONE;
cert_type = IKEV2_CERT_NONE;
+ ikeauth = &pol->pol_auth;
+
if (key != NULL) {
/* infer policy from key type */
if ((rsa = EVP_PKEY_get1_RSA(key)) != NULL) {
@@ -1767,14 +1769,16 @@ set_policy_auth_method(const char *peeri
if (method == IKEV2_AUTH_NONE || cert_type == IKEV2_CERT_NONE)
return (-1);
+ } else if (ikeauth->auth_method == IKEV2_AUTH_RSA_SIG) {
+ /* default to IKEV2_CERT_X509_CERT otherwise */
+ method = IKEV2_AUTH_RSA_SIG;
+ cert_type = IKEV2_CERT_X509_CERT;
} else {
/* default to IKEV2_CERT_X509_CERT otherwise */
method = IKEV2_AUTH_SIG;
cert_type = IKEV2_CERT_X509_CERT;
}
- ikeauth = &pol->pol_auth;
-
if (ikeauth->auth_method == IKEV2_AUTH_SHARED_KEY_MIC) {
if (key != NULL &&
method != IKEV2_AUTH_RSA_SIG)
@@ -1784,6 +1788,7 @@ set_policy_auth_method(const char *peeri
if (ikeauth->auth_method != IKEV2_AUTH_NONE &&
ikeauth->auth_method != IKEV2_AUTH_SIG_ANY &&
+ ikeauth->auth_method != IKEV2_AUTH_RSA_SIG &&
ikeauth->auth_method != method)
goto mismatch;
