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core: when receiving a memory limit via the bus, refuse 0

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When parsing unit files we already refuse unit memory limits of zero, let's
also refuse it when the value is set via the bus.
This commit is contained in:
Lennart Poettering
2016-06-14 19:50:38 +02:00
parent 328583dbc3
commit cd0a7a8e58
1 changed files with 5 additions and 1 deletions
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src/core/dbus-cgroup.c
+5 -1
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@@ -641,7 +641,7 @@ int bus_cgroup_set_property(
return 1;
} else if (streq(name, "BlockIOReadBandwidth") || streq(name, "BlockIOWriteBandwidth")) {
} else if (STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) {
const char *path;
bool read = true;
unsigned n = 0;
@@ -835,6 +835,8 @@ int bus_cgroup_set_property(
r = sd_bus_message_read(message, "t", &v);
if (r < 0)
return r;
if (v <= 0)
return sd_bus_error_set_errnof(error, EINVAL, "%s= is too small", name);
if (mode != UNIT_CHECK) {
if (streq(name, "MemoryLow"))
@@ -860,6 +862,8 @@ int bus_cgroup_set_property(
r = sd_bus_message_read(message, "t", &limit);
if (r < 0)
return r;
if (limit <= 0)
return sd_bus_error_set_errnof(error, EINVAL, "%s= is too small", name);
if (mode != UNIT_CHECK) {
c->memory_limit = limit;