From b77b9dc0597fa51babb8b9613d75fdec322513e3 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Thu, 26 Aug 2021 10:23:44 +1000
Subject: [PATCH] reis: add property support

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
 src/libreis.c | 15 +++++++++++++++
 src/libreis.h | 26 ++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/src/libreis.c b/src/libreis.c
index e242075..c07c714 100644
--- a/src/libreis.c
+++ b/src/libreis.c
@@ -82,6 +82,21 @@ reis_new(int eisfd)
 	msg.msg_case = CLIENT_MESSAGE__MSG_##_type; \
 	msg._field = &_field
 
+_public_ int
+reis_set_property_with_permissions(struct reis *reis,
+				   const char *name, const char *value,
+				   uint32_t permissions)
+{
+	prepare_msg(PROPERTY, Property, property);
+
+	property.name = (char*)name;
+	property.value = value ? (char*)value : "";
+	property.permissions = permissions;
+
+	int rc = send_msg(reis->eisfd, &msg);
+	return rc;
+}
+
 _public_ int
 reis_set_name(struct reis *reis, const char *name)
 {
diff --git a/src/libreis.h b/src/libreis.h
index b9ef718..3f0921f 100644
--- a/src/libreis.h
+++ b/src/libreis.h
@@ -51,6 +51,22 @@ enum reis_device_capability {
 	REIS_DEVICE_CAP_ALL = ~0,
 };
 
+/**
+ * @enum reis_property_permission
+ *
+ * A set of masks for operations permitted on properties. Note that property
+ * permissions only affect the libreis client, the server has full access to the
+ * properties at any time.
+ */
+enum reis_property_permission {
+	REIS_PROPERTY_PERM_NONE = 0,
+	REIS_PROPERTY_PERM_READ = (1 << 0),
+	REIS_PROPERTY_PERM_WRITE = (1 << 1),
+	REIS_PROPERTY_PERM_DELETE = (1 << 2),
+
+	REIS_PROPERTY_PERM_ALL = (REIS_PROPERTY_PERM_READ|REIS_PROPERTY_PERM_WRITE|REIS_PROPERTY_PERM_DELETE),
+};
+
 /**
  * Create a new reis context based on the EIS connection at the other end of
  * @a eisfd. The EIS context does not need to be in any
@@ -63,6 +79,16 @@ reis_new(int eisfd);
 struct reis *
 reis_unref(struct reis* reis);
 
+/**
+ * See ei_property_set_with_permissions(), but the permissions are
+ * left as-is. If the property does not exist, it is created with permissions
+ * @ref REIS_PROPERTY_PERM_ALL.
+ */
+int
+reis_set_property_with_permissions(struct reis *reis,
+				   const char *property, const char *value,
+				   uint32_t permission);
+
 /**
  * Set the name for the client on this connection.
  *