From a4cce2c98eedecb5d3b47da62104634cae268434 Mon Sep 17 00:00:00 2001
From: Stephen Gallagher <sgallagh@redhat.com>
Date: Mon, 2 Jul 2012 10:34:52 -0400
Subject: AD: Add AD access-control provider

This patch adds support for checking whether a user is expired or
disabled in AD.
---
 src/providers/ad/ad_access.c | 96 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 src/providers/ad/ad_access.c

(limited to 'src/providers/ad/ad_access.c')

diff --git a/src/providers/ad/ad_access.c b/src/providers/ad/ad_access.c
new file mode 100644
index 00000000..314cdcfa
--- /dev/null
+++ b/src/providers/ad/ad_access.c
@@ -0,0 +1,96 @@
+/*
+    SSSD
+
+    Authors:
+        Stephen Gallagher <sgallagh@redhat.com>
+
+    Copyright (C) 2012 Red Hat
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <security/pam_modules.h>
+#include "src/util/util.h"
+#include "src/providers/data_provider.h"
+#include "src/providers/dp_backend.h"
+#include "src/providers/ad/ad_access.h"
+#include "src/providers/ldap/sdap_access.h"
+
+static void
+ad_access_done(struct tevent_req *req);
+
+void
+ad_access_handler(struct be_req *breq)
+{
+    struct tevent_req *req;
+    struct ad_access_ctx *access_ctx =
+            talloc_get_type(breq->be_ctx->bet_info[BET_ACCESS].pvt_bet_data,
+                            struct ad_access_ctx);
+
+    struct pam_data *pd = talloc_get_type(breq->req_data, struct pam_data);
+
+    /* Handle subdomains */
+    if (strcasecmp(pd->domain, breq->be_ctx->domain->name) != 0) {
+        breq->domain = new_subdomain(breq, breq->be_ctx->domain, pd->domain,
+                                     NULL, NULL);
+        if (breq->domain == NULL) {
+            DEBUG(SSSDBG_OP_FAILURE, ("new_subdomain failed.\n"));
+            breq->fn(breq, DP_ERR_FATAL, PAM_SYSTEM_ERR, NULL);
+            return;
+        }
+        breq->sysdb = breq->domain->sysdb;
+    }
+
+    /* Verify that the account is not locked */
+    req = sdap_access_send(breq,
+                           breq->be_ctx->ev,
+                           breq,
+                           access_ctx->sdap_access_ctx,
+                           pd);
+    if (!req) {
+        breq->fn(breq, DP_ERR_FATAL, PAM_SYSTEM_ERR, NULL);
+        return;
+    }
+    tevent_req_set_callback(req, ad_access_done, breq);
+}
+
+static void
+ad_access_done(struct tevent_req *req)
+{
+    errno_t ret;
+    int pam_status;
+    struct be_req *breq =
+            tevent_req_callback_data(req, struct be_req);
+    struct pam_data *pd = talloc_get_type(breq->req_data, struct pam_data);
+
+    ret = sdap_access_recv(req, &pam_status);
+    talloc_zfree(req);
+    if (ret != EOK) {
+        breq->fn(breq, DP_ERR_FATAL, PAM_SYSTEM_ERR, strerror(ret));
+        return;
+    }
+
+    pd->pam_status = pam_status;
+
+    if (pam_status == PAM_SUCCESS || pam_status == PAM_PERM_DENIED) {
+        /* We got the proper approval or denial */
+        breq->fn(breq, DP_ERR_OK, pam_status, NULL);
+        return;
+    }
+
+    /* Something went wrong */
+    pd->pam_status = PAM_SYSTEM_ERR;
+    breq->fn(breq, DP_ERR_FATAL, pam_status, pam_strerror(NULL, pam_status));
+    return;
+}
-- 
cgit