From 86669b5615683a5292ca048c362a000d471329d9 Mon Sep 17 00:00:00 2001

From: Evgeny Vereshchagin <evvers@ya.ru>

Date: Mon, 12 Oct 2015 06:39:00 +0000

Subject: [PATCH] core: manager: expose DefaultLimit* as properties on dbus

(cherry picked from commit 97eb42315785821dae3349978a1adf7d49aa5fc1)

Conflicts:

	src/core/dbus-manager.c

Resolves: #1427927

---

 src/core/dbus-manager.c          | 16 ++++++++++++++++

 src/libsystemd/sd-bus/bus-util.c | 39 +++++++++++++++++++++++++++++++++++++++

 src/libsystemd/sd-bus/bus-util.h |  1 +

 3 files changed, 56 insertions(+)

diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c

index 9d4f63377..d34ed042f 100644

--- a/src/core/dbus-manager.c

+++ b/src/core/dbus-manager.c

@@ -2049,6 +2049,22 @@ const sd_bus_vtable bus_manager_vtable[] = {

         SD_BUS_PROPERTY("DefaultBlockIOAccounting", "b", bus_property_get_bool, offsetof(Manager, default_blockio_accounting), SD_BUS_VTABLE_PROPERTY_CONST),

         SD_BUS_PROPERTY("DefaultMemoryAccounting", "b", bus_property_get_bool, offsetof(Manager, default_memory_accounting), SD_BUS_VTABLE_PROPERTY_CONST),

         SD_BUS_PROPERTY("DefaultTasksAccounting", "b", bus_property_get_bool, offsetof(Manager, default_tasks_accounting), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitCPU", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitFSIZE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitDATA", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitSTACK", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitCORE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitRSS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitNOFILE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitAS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitNPROC", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitLOCKS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitNICE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitRTPRIO", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),

+        SD_BUS_PROPERTY("DefaultLimitRTTIME", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),

         SD_BUS_PROPERTY("DefaultTasksMax", "t", NULL, offsetof(Manager, default_tasks_max), SD_BUS_VTABLE_PROPERTY_CONST),

         SD_BUS_METHOD("GetUnit", "s", "o", method_get_unit, SD_BUS_VTABLE_UNPRIVILEGED),

diff --git a/src/libsystemd/sd-bus/bus-util.c b/src/libsystemd/sd-bus/bus-util.c

index f46fa2bbf..263457427 100644

--- a/src/libsystemd/sd-bus/bus-util.c

+++ b/src/libsystemd/sd-bus/bus-util.c

@@ -1937,3 +1937,42 @@ int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, Un

         return 0;

 }

+

+int bus_property_get_rlimit(

+                sd_bus *bus,

+                const char *path,

+                const char *interface,

+                const char *property,

+                sd_bus_message *reply,

+                void *userdata,

+                sd_bus_error *error) {

+

+        struct rlimit *rl;

+        uint64_t u;

+        rlim_t x;

+

+        assert(bus);

+        assert(reply);

+        assert(userdata);

+

+        rl = *(struct rlimit**) userdata;

+        if (rl)

+                x = rl->rlim_max;

+        else {

+                struct rlimit buf = {};

+                int z;

+

+                z = rlimit_from_string(startswith(property, "Default") ? property + 7 : property);

+                assert(z >= 0);

+

+                getrlimit(z, &buf;;

+                x = buf.rlim_max;

+        }

+

+        /* rlim_t might have different sizes, let's map

+         * RLIMIT_INFINITY to (uint64_t) -1, so that it is the same on

+         * all archs */

+        u = x == RLIM_INFINITY ? (uint64_t) -1 : (uint64_t) x;

+

+        return sd_bus_message_append(reply, "t", u);

+}

diff --git a/src/libsystemd/sd-bus/bus-util.h b/src/libsystemd/sd-bus/bus-util.h

index 8c8846c6e..d5f4e9750 100644

--- a/src/libsystemd/sd-bus/bus-util.h

+++ b/src/libsystemd/sd-bus/bus-util.h

@@ -214,3 +214,4 @@ int bus_wait_for_jobs_one(BusWaitForJobs *d, const char *path, bool quiet);

 DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs*, bus_wait_for_jobs_free);

 int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes);

+int bus_property_get_rlimit(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error);