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diff --git a/src/util/sss_pam_data.h b/src/util/sss_pam_data.h
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+++ b/src/util/sss_pam_data.h
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+/*
+    Authors:
+        Pavel Březina <pbrezina@redhat.com>
+
+    Copyright (C) 2016 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/>.
+*/
+
+#ifndef _SSS_PAM_DATA_H_
+#define _SSS_PAM_DATA_H_
+
+#include "config.h"
+#include <stdbool.h>
+#include <stdint.h>
+#ifdef USE_KEYRING
+#include <sys/types.h>
+#include <keyutils.h>
+#endif
+
+#include "util/util_errors.h"
+#include "util/debug.h"
+#include "util/authtok.h"
+
+#define DEBUG_PAM_DATA(level, pd) do { \
+    pam_print_data(level, pd); \
+} while(0)
+
+struct response_data {
+    int32_t type;
+    int32_t len;
+    uint8_t *data;
+    bool do_not_send_to_client;
+    struct response_data *next;
+};
+
+struct pam_data {
+    int cmd;
+    char *domain;
+    char *user;
+    char *service;
+    char *tty;
+    char *ruser;
+    char *rhost;
+    char **requested_domains;
+    struct sss_auth_token *authtok;
+    struct sss_auth_token *newauthtok;
+    uint32_t cli_pid;
+    uint32_t child_pid;
+    char *logon_name;
+    uint32_t cli_flags;
+
+    int pam_status;
+    int response_delay;
+    struct response_data *resp_list;
+
+    bool offline_auth;
+    bool last_auth_saved;
+    int priv;
+    int account_locked;
+
+    uint32_t client_id_num;
+#ifdef USE_KEYRING
+    key_serial_t key_serial;
+#endif
+    bool passkey_local_done;
+};
+
+/**
+ * @brief Create new zero initialized struct pam_data.
+ *
+ * @param mem_ctx    A memory context use to allocate the internal data
+ * @return           A pointer to new struct pam_data
+ *                   NULL on error
+ *
+ * NOTE: This function should be the only way, how to create new empty
+ * struct pam_data, because this function automatically initialize sub
+ * structures and set destructor to created object.
+ */
+struct pam_data *create_pam_data(TALLOC_CTX *mem_ctx);
+errno_t copy_pam_data(TALLOC_CTX *mem_ctx, struct pam_data *old_pd,
+                      struct pam_data **new_pd);
+void pam_print_data(int l, struct pam_data *pd);
+int pam_add_response(struct pam_data *pd,
+                     enum response_type type,
+                     int len, const uint8_t *data);
+
+#endif /* _SSS_PAM_DATA_H_ */