1 files changed, 41 insertions, 0 deletions
diff --git a/src/shared/pam-util.h b/src/shared/pam-util.h
new file mode 100644
index 0000000..5a05fb7
--- /dev/null
+++ b/src/shared/pam-util.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <security/pam_modules.h>
+
+#include "sd-bus.h"
+
+int pam_syslog_errno(pam_handle_t *handle, int level, int error, const char *format, ...) _printf_(4,5);
+
+int pam_syslog_pam_error(pam_handle_t *handle, int level, int error, const char *format, ...) _printf_(4,5);
+
+/* Call pam_vsyslog if debug is enabled */
+#define pam_debug_syslog(handle, debug, fmt, ...) ({                    \
+                        if (debug)                                      \
+                                pam_syslog(handle, LOG_DEBUG, fmt, ## __VA_ARGS__); \
+                })
+
+static inline int pam_log_oom(pam_handle_t *handle) {
+        /* This is like log_oom(), but uses PAM logging */
+        return pam_syslog_errno(handle, LOG_ERR, ENOMEM, "Out of memory.");
+}
+
+static inline int pam_bus_log_create_error(pam_handle_t *handle, int r) {
+        /* This is like bus_log_create_error(), but uses PAM logging */
+        return pam_syslog_errno(handle, LOG_ERR, r, "Failed to create bus message: %m");
+}
+
+static inline int pam_bus_log_parse_error(pam_handle_t *handle, int r) {
+        /* This is like bus_log_parse_error(), but uses PAM logging */
+        return pam_syslog_errno(handle, LOG_ERR, r, "Failed to parse bus message: %m");
+}
+
+typedef struct PamBusData PamBusData;
+void pam_bus_data_disconnectp(PamBusData **d);
+
+/* Use a different module name per different PAM module. They are all loaded in the same namespace, and this
+ * helps avoid a clash in the internal data structures of sd-bus. It will be used as key for cache items. */
+int pam_acquire_bus_connection(pam_handle_t *handle, const char *module_name, sd_bus **ret_bus, PamBusData **ret_bus_data);
+int pam_release_bus_connection(pam_handle_t *handle, const char *module_name);
+
+void pam_cleanup_free(pam_handle_t *handle, void *data, int error_status);