From 96469b8ff2cd0e7dc77b7974c431f1dd97981356 Mon Sep 17 00:00:00 2001
From: Zhang zhengguang <zhengguang.zhang@intel.com>
Date: Sat, 11 Oct 2014 16:46:50 +0800
Subject: [PATCH] multi-user: Add multi-user support for auto connect service

Use case:

For wifi auto connect mechamnism, only when the user who owns the
wifi service login, the service is allowed to be auto connected.

Change-Id: I99135117facafda41532e0280c89194b27baac16
---
 src/service.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/src/service.c b/src/service.c
index a1124ae..55cf02c 100644
--- a/src/service.c
+++ b/src/service.c
@@ -30,6 +30,8 @@
 #include <gdbus.h>
 #include <ctype.h>
 #include <stdint.h>
+#include <pwd.h>
+#include <utmpx.h>
 
 #include <connman/storage.h>
 #include <connman/setting.h>
@@ -379,6 +381,61 @@ connman_service_is_user_allowed(struct connman_service *service, uid_t uid)
 	return true;
 }
 
+static GList *connman_service_get_login_users()
+{
+	struct utmpx *utmp;
+	struct passwd *pwd;
+	GList *user_list = NULL;
+
+	setutxent();
+
+	while ((utmp = getutxent()) != NULL) {
+		if (utmp->ut_user != USER_ROOT && utmp->ut_type != USER_PROCESS)
+			continue;
+
+		pwd = getpwnam(utmp->ut_user);
+
+		if (!g_list_find(user_list, GUINT_TO_POINTER(pwd->pw_uid)))
+			user_list = g_list_append(user_list,
+						GUINT_TO_POINTER(pwd->pw_uid));
+
+		DBG("User Name: %s, UID: %d", utmp->ut_user, pwd->pw_uid);
+	}
+
+	endutxent();
+
+	return user_list;
+}
+
+static bool is_service_owner_user_login(struct connman_service *service)
+{
+	GList *list, *user_list;
+	bool ret = false;
+
+	/* Here we only care about wifi service */
+	if (service->type != CONNMAN_SERVICE_TYPE_WIFI)
+		return true;
+
+	user_list = connman_service_get_login_users();
+
+	DBG("service favorite user id is: %d", service->user.favorite_user);
+
+	for (list = user_list; list; list = list->next) {
+		uid_t uid = GPOINTER_TO_UINT(list->data);
+
+		DBG("login user id is %d", uid);
+
+		if (service->user.favorite_user == uid) {
+			ret = true;
+			break;
+		}
+	}
+
+	g_list_free(user_list);
+
+	return ret;
+}
+
 int __connman_service_load_modifiable(struct connman_service *service)
 {
 	GKeyFile *keyfile;
@@ -3800,6 +3857,11 @@ static bool auto_connect_service(GList *services,
 			continue;
 		}
 
+		if (!is_service_owner_user_login(service)) {
+			DBG("favorite user not login, wifi auto connect denied");
+			continue;
+		}
+
 		DBG("service %p %s %s", service, service->name,
 			(preferred) ? "preferred" : reason2string(reason));
 
-- 
2.7.4