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From 1a7c6ab6efce3720d27def426aad49ee99eb339d Mon Sep 17 00:00:00 2001
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From: Sumit Bose <sbose@redhat.com>
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Date: Mon, 26 Nov 2018 12:38:40 +0100
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Subject: [PATCH 54/54] LDAP: Log the encryption used during LDAP
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authentication
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Reviewed-by: Jakub Hrozek <jhrozek@redhat.com>
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(cherry picked from commit 6f113c7ddeaa5c82558e10118b499d22bf7a2b14)
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---
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src/providers/ldap/ldap_auth.c | 27 +++++++++++++++++++++++++++
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1 file changed, 27 insertions(+)
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diff --git a/src/providers/ldap/ldap_auth.c b/src/providers/ldap/ldap_auth.c
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index b4d045a65..4666dbfbb 100644
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--- a/src/providers/ldap/ldap_auth.c
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+++ b/src/providers/ldap/ldap_auth.c
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@@ -747,6 +747,31 @@ static struct tevent_req *auth_connect_send(struct tevent_req *req)
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return subreq;
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}
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+static void check_encryption(LDAP *ldap)
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+{
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+ ber_len_t sasl_ssf = 0;
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+ int tls_inplace = 0;
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+ int ret;
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+
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+ ret = ldap_get_option(ldap, LDAP_OPT_X_SASL_SSF, &sasl_ssf);
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+ if (ret != LDAP_SUCCESS) {
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+ DEBUG(SSSDBG_TRACE_LIBS, "ldap_get_option failed to get sasl ssf, "
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+ "assuming SASL is not used.\n");
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+ }
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+
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+ tls_inplace = ldap_tls_inplace(ldap);
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+
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+ DEBUG(SSSDBG_TRACE_ALL,
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+ "Encryption used: SASL SSF [%lu] tls_inplace [%s].\n", sasl_ssf,
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+ tls_inplace == 1 ? "TLS inplace" : "TLS NOT inplace");
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+
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+ if (sasl_ssf <= 1 && tls_inplace != 1) {
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+ DEBUG(SSSDBG_CRIT_FAILURE,
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+ "No encryption detected on LDAP connection.\n");
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+ sss_log(SSS_LOG_CRIT, "No encryption detected on LDAP connection.\n");
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+ }
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+}
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+
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static void auth_connect_done(struct tevent_req *subreq)
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{
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struct tevent_req *req = tevent_req_callback_data(subreq,
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@@ -776,6 +801,8 @@ static void auth_connect_done(struct tevent_req *subreq)
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return;
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}
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+ check_encryption(state->sh->ldap);
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+
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if (state->dn == NULL) {
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/* The cached user entry was missing the bind DN. Need to look
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* it up based on user name in order to perform the bind */
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--
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2.19.1
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