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From c8b68454839618abf0e0c467ceaa08ef88717b22 Mon Sep 17 00:00:00 2001
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From: Andreas Schneider <asn@samba.org>
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Date: Wed, 11 Dec 2019 17:45:39 +0100
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Subject: [PATCH 195/208] gensec: Add a check if a gensec module implements
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weak crypto
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Signed-off-by: Andreas Schneider <asn@samba.org>
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---
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auth/gensec/gensec_internal.h | 1 +
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auth/gensec/gensec_start.c | 12 +++++++++++-
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2 files changed, 12 insertions(+), 1 deletion(-)
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diff --git a/auth/gensec/gensec_internal.h b/auth/gensec/gensec_internal.h
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index 911b48b52d6..8efb1bdff0f 100644
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--- a/auth/gensec/gensec_internal.h
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+++ b/auth/gensec/gensec_internal.h
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@@ -28,6 +28,7 @@ struct gensec_security;
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struct gensec_security_ops {
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const char *name;
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const char *sasl_name;
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+ bool weak_crypto;
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uint8_t auth_type; /* 0 if not offered on DCE-RPC */
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const char **oid; /* NULL if not offered by SPNEGO */
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NTSTATUS (*client_start)(struct gensec_security *gensec_security);
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diff --git a/auth/gensec/gensec_start.c b/auth/gensec/gensec_start.c
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index 50f4de73110..860c974f056 100644
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--- a/auth/gensec/gensec_start.c
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+++ b/auth/gensec/gensec_start.c
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@@ -49,7 +49,17 @@ _PUBLIC_ const struct gensec_security_ops * const *gensec_security_all(void)
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bool gensec_security_ops_enabled(const struct gensec_security_ops *ops, struct gensec_security *security)
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{
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- return lpcfg_parm_bool(security->settings->lp_ctx, NULL, "gensec", ops->name, ops->enabled);
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+ bool ok = lpcfg_parm_bool(security->settings->lp_ctx,
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+ NULL,
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+ "gensec",
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+ ops->name,
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+ ops->enabled);
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+
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+ if (!samba_gnutls_weak_crypto_allowed() && ops->weak_crypto) {
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+ ok = false;
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+ }
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+
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+ return ok;
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}
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/* Sometimes we want to force only kerberos, sometimes we want to
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--
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2.23.0
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