| /* SPDX-License-Identifier: LGPL-2.1+ */ |
| |
| #include <arpa/inet.h> |
| #include <stdio_ext.h> |
| |
| #include "af-list.h" |
| #include "alloc-util.h" |
| #include "bpf-firewall.h" |
| #include "bus-util.h" |
| #include "cgroup-util.h" |
| #include "cgroup.h" |
| #include "dbus-cgroup.h" |
| #include "dbus-util.h" |
| #include "fd-util.h" |
| #include "fileio.h" |
| #include "path-util.h" |
| |
| static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_cgroup_device_policy, cgroup_device_policy, CGroupDevicePolicy); |
| |
| static int property_get_delegate_controllers( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupController cc; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| if (!c->delegate) |
| return sd_bus_message_append(reply, "as", 0); |
| |
| r = sd_bus_message_open_container(reply, 'a', "s"); |
| if (r < 0) |
| return r; |
| |
| for (cc = 0; cc < _CGROUP_CONTROLLER_MAX; cc++) { |
| if ((c->delegate_controllers & CGROUP_CONTROLLER_TO_MASK(cc)) == 0) |
| continue; |
| |
| r = sd_bus_message_append(reply, "s", cgroup_controller_to_string(cc)); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_cpuset( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CPUSet *cpus = userdata; |
| _cleanup_free_ uint8_t *array = NULL; |
| size_t allocated; |
| |
| assert(bus); |
| assert(reply); |
| assert(cpus); |
| |
| (void) cpu_set_to_dbus(cpus, &array, &allocated); |
| return sd_bus_message_append_array(reply, 'y', array, allocated); |
| } |
| |
| static int property_get_io_device_weight( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupIODeviceWeight *w; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| r = sd_bus_message_open_container(reply, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(device_weights, w, c->io_device_weights) { |
| r = sd_bus_message_append(reply, "(st)", w->path, w->weight); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_io_device_limits( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupIODeviceLimit *l; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| r = sd_bus_message_open_container(reply, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(device_limits, l, c->io_device_limits) { |
| CGroupIOLimitType type; |
| |
| type = cgroup_io_limit_type_from_string(property); |
| if (type < 0 || l->limits[type] == cgroup_io_limit_defaults[type]) |
| continue; |
| |
| r = sd_bus_message_append(reply, "(st)", l->path, l->limits[type]); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_io_device_latency( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupIODeviceLatency *l; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| r = sd_bus_message_open_container(reply, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(device_latencies, l, c->io_device_latencies) { |
| r = sd_bus_message_append(reply, "(st)", l->path, l->target_usec); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_blockio_device_weight( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupBlockIODeviceWeight *w; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| r = sd_bus_message_open_container(reply, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(device_weights, w, c->blockio_device_weights) { |
| r = sd_bus_message_append(reply, "(st)", w->path, w->weight); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_blockio_device_bandwidths( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupBlockIODeviceBandwidth *b; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| r = sd_bus_message_open_container(reply, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(device_bandwidths, b, c->blockio_device_bandwidths) { |
| uint64_t v; |
| |
| if (streq(property, "BlockIOReadBandwidth")) |
| v = b->rbps; |
| else |
| v = b->wbps; |
| |
| if (v == CGROUP_LIMIT_MAX) |
| continue; |
| |
| r = sd_bus_message_append(reply, "(st)", b->path, v); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_device_allow( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| CGroupContext *c = userdata; |
| CGroupDeviceAllow *a; |
| int r; |
| |
| assert(bus); |
| assert(reply); |
| assert(c); |
| |
| r = sd_bus_message_open_container(reply, 'a', "(ss)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(device_allow, a, c->device_allow) { |
| unsigned k = 0; |
| char rwm[4]; |
| |
| if (a->r) |
| rwm[k++] = 'r'; |
| if (a->w) |
| rwm[k++] = 'w'; |
| if (a->m) |
| rwm[k++] = 'm'; |
| |
| rwm[k] = 0; |
| |
| r = sd_bus_message_append(reply, "(ss)", a->path, rwm); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| static int property_get_ip_address_access( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| IPAddressAccessItem** items = userdata, *i; |
| int r; |
| |
| r = sd_bus_message_open_container(reply, 'a', "(iayu)"); |
| if (r < 0) |
| return r; |
| |
| LIST_FOREACH(items, i, *items) { |
| |
| r = sd_bus_message_open_container(reply, 'r', "iayu"); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(reply, "i", i->family); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append_array(reply, 'y', &i->address, FAMILY_ADDRESS_SIZE(i->family)); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_append(reply, "u", (uint32_t) i->prefixlen); |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_close_container(reply); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_message_close_container(reply); |
| } |
| |
| const sd_bus_vtable bus_cgroup_vtable[] = { |
| SD_BUS_VTABLE_START(0), |
| SD_BUS_PROPERTY("Delegate", "b", bus_property_get_bool, offsetof(CGroupContext, delegate), 0), |
| SD_BUS_PROPERTY("DelegateControllers", "as", property_get_delegate_controllers, 0, 0), |
| SD_BUS_PROPERTY("CPUAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, cpu_accounting), 0), |
| SD_BUS_PROPERTY("CPUWeight", "t", NULL, offsetof(CGroupContext, cpu_weight), 0), |
| SD_BUS_PROPERTY("StartupCPUWeight", "t", NULL, offsetof(CGroupContext, startup_cpu_weight), 0), |
| SD_BUS_PROPERTY("CPUShares", "t", NULL, offsetof(CGroupContext, cpu_shares), 0), |
| SD_BUS_PROPERTY("StartupCPUShares", "t", NULL, offsetof(CGroupContext, startup_cpu_shares), 0), |
| SD_BUS_PROPERTY("CPUQuotaPerSecUSec", "t", bus_property_get_usec, offsetof(CGroupContext, cpu_quota_per_sec_usec), 0), |
| SD_BUS_PROPERTY("CPUQuotaPeriodUSec", "t", bus_property_get_usec, offsetof(CGroupContext, cpu_quota_period_usec), 0), |
| SD_BUS_PROPERTY("AllowedCPUs", "ay", property_get_cpuset, offsetof(CGroupContext, cpuset_cpus), 0), |
| SD_BUS_PROPERTY("AllowedMemoryNodes", "ay", property_get_cpuset, offsetof(CGroupContext, cpuset_mems), 0), |
| SD_BUS_PROPERTY("IOAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, io_accounting), 0), |
| SD_BUS_PROPERTY("IOWeight", "t", NULL, offsetof(CGroupContext, io_weight), 0), |
| SD_BUS_PROPERTY("StartupIOWeight", "t", NULL, offsetof(CGroupContext, startup_io_weight), 0), |
| SD_BUS_PROPERTY("IODeviceWeight", "a(st)", property_get_io_device_weight, 0, 0), |
| SD_BUS_PROPERTY("IOReadBandwidthMax", "a(st)", property_get_io_device_limits, 0, 0), |
| SD_BUS_PROPERTY("IOWriteBandwidthMax", "a(st)", property_get_io_device_limits, 0, 0), |
| SD_BUS_PROPERTY("IOReadIOPSMax", "a(st)", property_get_io_device_limits, 0, 0), |
| SD_BUS_PROPERTY("IOWriteIOPSMax", "a(st)", property_get_io_device_limits, 0, 0), |
| SD_BUS_PROPERTY("IODeviceLatencyTargetUSec", "a(st)", property_get_io_device_latency, 0, 0), |
| SD_BUS_PROPERTY("BlockIOAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, blockio_accounting), 0), |
| SD_BUS_PROPERTY("BlockIOWeight", "t", NULL, offsetof(CGroupContext, blockio_weight), 0), |
| SD_BUS_PROPERTY("StartupBlockIOWeight", "t", NULL, offsetof(CGroupContext, startup_blockio_weight), 0), |
| SD_BUS_PROPERTY("BlockIODeviceWeight", "a(st)", property_get_blockio_device_weight, 0, 0), |
| SD_BUS_PROPERTY("BlockIOReadBandwidth", "a(st)", property_get_blockio_device_bandwidths, 0, 0), |
| SD_BUS_PROPERTY("BlockIOWriteBandwidth", "a(st)", property_get_blockio_device_bandwidths, 0, 0), |
| SD_BUS_PROPERTY("MemoryAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, memory_accounting), 0), |
| SD_BUS_PROPERTY("DefaultMemoryLow", "t", NULL, offsetof(CGroupContext, default_memory_low), 0), |
| SD_BUS_PROPERTY("DefaultMemoryMin", "t", NULL, offsetof(CGroupContext, default_memory_min), 0), |
| SD_BUS_PROPERTY("MemoryMin", "t", NULL, offsetof(CGroupContext, memory_min), 0), |
| SD_BUS_PROPERTY("MemoryLow", "t", NULL, offsetof(CGroupContext, memory_low), 0), |
| SD_BUS_PROPERTY("MemoryHigh", "t", NULL, offsetof(CGroupContext, memory_high), 0), |
| SD_BUS_PROPERTY("MemoryMax", "t", NULL, offsetof(CGroupContext, memory_max), 0), |
| SD_BUS_PROPERTY("MemorySwapMax", "t", NULL, offsetof(CGroupContext, memory_swap_max), 0), |
| SD_BUS_PROPERTY("MemoryLimit", "t", NULL, offsetof(CGroupContext, memory_limit), 0), |
| SD_BUS_PROPERTY("DevicePolicy", "s", property_get_cgroup_device_policy, offsetof(CGroupContext, device_policy), 0), |
| SD_BUS_PROPERTY("DeviceAllow", "a(ss)", property_get_device_allow, 0, 0), |
| SD_BUS_PROPERTY("TasksAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, tasks_accounting), 0), |
| SD_BUS_PROPERTY("TasksMax", "t", NULL, offsetof(CGroupContext, tasks_max), 0), |
| SD_BUS_PROPERTY("IPAccounting", "b", bus_property_get_bool, offsetof(CGroupContext, ip_accounting), 0), |
| SD_BUS_PROPERTY("IPAddressAllow", "a(iayu)", property_get_ip_address_access, offsetof(CGroupContext, ip_address_allow), 0), |
| SD_BUS_PROPERTY("IPAddressDeny", "a(iayu)", property_get_ip_address_access, offsetof(CGroupContext, ip_address_deny), 0), |
| SD_BUS_VTABLE_END |
| }; |
| |
| static int bus_cgroup_set_transient_property( |
| Unit *u, |
| CGroupContext *c, |
| const char *name, |
| sd_bus_message *message, |
| UnitWriteFlags flags, |
| sd_bus_error *error) { |
| |
| int r; |
| |
| assert(u); |
| assert(c); |
| assert(name); |
| assert(message); |
| |
| flags |= UNIT_PRIVATE; |
| |
| if (streq(name, "Delegate")) { |
| int b; |
| |
| if (!UNIT_VTABLE(u)->can_delegate) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delegation not available for unit type"); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| c->delegate = b; |
| c->delegate_controllers = b ? _CGROUP_MASK_ALL : 0; |
| |
| unit_write_settingf(u, flags, name, "Delegate=%s", yes_no(b)); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "DelegateControllers")) { |
| CGroupMask mask = 0; |
| |
| if (!UNIT_VTABLE(u)->can_delegate) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delegation not available for unit type"); |
| |
| r = sd_bus_message_enter_container(message, 'a', "s"); |
| if (r < 0) |
| return r; |
| |
| for (;;) { |
| CGroupController cc; |
| const char *t; |
| |
| r = sd_bus_message_read(message, "s", &t); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| break; |
| |
| cc = cgroup_controller_from_string(t); |
| if (cc < 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown cgroup controller '%s'", t); |
| |
| mask |= CGROUP_CONTROLLER_TO_MASK(cc); |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *t = NULL; |
| |
| r = cg_mask_to_string(mask, &t); |
| if (r < 0) |
| return r; |
| |
| c->delegate = true; |
| if (mask == 0) |
| c->delegate_controllers = 0; |
| else |
| c->delegate_controllers |= mask; |
| |
| unit_write_settingf(u, flags, name, "Delegate=%s", strempty(t)); |
| } |
| |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| static int bus_cgroup_set_boolean( |
| Unit *u, |
| const char *name, |
| bool *p, |
| CGroupMask mask, |
| sd_bus_message *message, |
| UnitWriteFlags flags, |
| sd_bus_error *error) { |
| |
| int b, r; |
| |
| assert(p); |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| *p = b; |
| unit_invalidate_cgroup(u, mask); |
| unit_write_settingf(u, flags, name, "%s=%s", name, yes_no(b)); |
| } |
| |
| return 1; |
| } |
| |
| #define BUS_DEFINE_SET_CGROUP_WEIGHT(function, mask, check, val) \ |
| static int bus_cgroup_set_##function( \ |
| Unit *u, \ |
| const char *name, \ |
| uint64_t *p, \ |
| sd_bus_message *message, \ |
| UnitWriteFlags flags, \ |
| sd_bus_error *error) { \ |
| \ |
| uint64_t v; \ |
| int r; \ |
| \ |
| assert(p); \ |
| \ |
| r = sd_bus_message_read(message, "t", &v); \ |
| if (r < 0) \ |
| return r; \ |
| \ |
| if (!check(v)) \ |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \ |
| "Value specified in %s is out of range", name); \ |
| \ |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \ |
| *p = v; \ |
| unit_invalidate_cgroup(u, (mask)); \ |
| \ |
| if (v == (val)) \ |
| unit_write_settingf(u, flags, name, \ |
| "%s=", name); \ |
| else \ |
| unit_write_settingf(u, flags, name, \ |
| "%s=%" PRIu64, name, v); \ |
| } \ |
| \ |
| return 1; \ |
| } |
| |
| #define BUS_DEFINE_SET_CGROUP_LIMIT(function, mask, scale, minimum) \ |
| static int bus_cgroup_set_##function( \ |
| Unit *u, \ |
| const char *name, \ |
| uint64_t *p, \ |
| sd_bus_message *message, \ |
| UnitWriteFlags flags, \ |
| sd_bus_error *error) { \ |
| \ |
| uint64_t v; \ |
| int r; \ |
| \ |
| assert(p); \ |
| \ |
| r = sd_bus_message_read(message, "t", &v); \ |
| if (r < 0) \ |
| return r; \ |
| \ |
| if (v < minimum) \ |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \ |
| "Value specified in %s is out of range", name); \ |
| \ |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \ |
| *p = v; \ |
| unit_invalidate_cgroup(u, (mask)); \ |
| \ |
| if (v == CGROUP_LIMIT_MAX) \ |
| unit_write_settingf(u, flags, name, \ |
| "%s=infinity", name); \ |
| else \ |
| unit_write_settingf(u, flags, name, \ |
| "%s=%" PRIu64, name, v); \ |
| } \ |
| \ |
| return 1; \ |
| } \ |
| static int bus_cgroup_set_##function##_scale( \ |
| Unit *u, \ |
| const char *name, \ |
| uint64_t *p, \ |
| sd_bus_message *message, \ |
| UnitWriteFlags flags, \ |
| sd_bus_error *error) { \ |
| \ |
| uint64_t v; \ |
| uint32_t raw; \ |
| int r; \ |
| \ |
| assert(p); \ |
| \ |
| r = sd_bus_message_read(message, "u", &raw); \ |
| if (r < 0) \ |
| return r; \ |
| \ |
| v = scale(raw, UINT32_MAX); \ |
| if (v < minimum || v >= UINT64_MAX) \ |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, \ |
| "Value specified in %s is out of range", name); \ |
| \ |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { \ |
| const char *e; \ |
| \ |
| *p = v; \ |
| unit_invalidate_cgroup(u, (mask)); \ |
| \ |
| /* Chop off suffix */ \ |
| assert_se(e = endswith(name, "Scale")); \ |
| name = strndupa(name, e - name); \ |
| \ |
| unit_write_settingf(u, flags, name, "%s=%" PRIu32 "%%", name, \ |
| (uint32_t) (DIV_ROUND_UP((uint64_t) raw * 100U, (uint64_t) UINT32_MAX))); \ |
| } \ |
| \ |
| return 1; \ |
| } |
| |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wtype-limits" |
| BUS_DEFINE_SET_CGROUP_WEIGHT(cpu_weight, CGROUP_MASK_CPU, CGROUP_WEIGHT_IS_OK, CGROUP_WEIGHT_INVALID); |
| BUS_DEFINE_SET_CGROUP_WEIGHT(cpu_shares, CGROUP_MASK_CPU, CGROUP_CPU_SHARES_IS_OK, CGROUP_CPU_SHARES_INVALID); |
| BUS_DEFINE_SET_CGROUP_WEIGHT(io_weight, CGROUP_MASK_IO, CGROUP_WEIGHT_IS_OK, CGROUP_WEIGHT_INVALID); |
| BUS_DEFINE_SET_CGROUP_WEIGHT(blockio_weight, CGROUP_MASK_BLKIO, CGROUP_BLKIO_WEIGHT_IS_OK, CGROUP_BLKIO_WEIGHT_INVALID); |
| BUS_DEFINE_SET_CGROUP_LIMIT(memory, CGROUP_MASK_MEMORY, physical_memory_scale, 1); |
| BUS_DEFINE_SET_CGROUP_LIMIT(memory_protection, CGROUP_MASK_MEMORY, physical_memory_scale, 0); |
| BUS_DEFINE_SET_CGROUP_LIMIT(swap, CGROUP_MASK_MEMORY, physical_memory_scale, 0); |
| BUS_DEFINE_SET_CGROUP_LIMIT(tasks_max, CGROUP_MASK_PIDS, system_tasks_max_scale, 1); |
| #pragma GCC diagnostic pop |
| |
| int bus_cgroup_set_property( |
| Unit *u, |
| CGroupContext *c, |
| const char *name, |
| sd_bus_message *message, |
| UnitWriteFlags flags, |
| sd_bus_error *error) { |
| |
| CGroupIOLimitType iol_type; |
| int r; |
| |
| assert(u); |
| assert(c); |
| assert(name); |
| assert(message); |
| |
| flags |= UNIT_PRIVATE; |
| |
| if (streq(name, "CPUAccounting")) |
| return bus_cgroup_set_boolean(u, name, &c->cpu_accounting, CGROUP_MASK_CPUACCT|CGROUP_MASK_CPU, message, flags, error); |
| |
| if (streq(name, "CPUWeight")) |
| return bus_cgroup_set_cpu_weight(u, name, &c->cpu_weight, message, flags, error); |
| |
| if (streq(name, "StartupCPUWeight")) |
| return bus_cgroup_set_cpu_weight(u, name, &c->startup_cpu_weight, message, flags, error); |
| |
| if (streq(name, "CPUShares")) |
| return bus_cgroup_set_cpu_shares(u, name, &c->cpu_shares, message, flags, error); |
| |
| if (streq(name, "StartupCPUShares")) |
| return bus_cgroup_set_cpu_shares(u, name, &c->startup_cpu_shares, message, flags, error); |
| |
| if (streq(name, "IOAccounting")) |
| return bus_cgroup_set_boolean(u, name, &c->io_accounting, CGROUP_MASK_IO, message, flags, error); |
| |
| if (streq(name, "IOWeight")) |
| return bus_cgroup_set_io_weight(u, name, &c->io_weight, message, flags, error); |
| |
| if (streq(name, "StartupIOWeight")) |
| return bus_cgroup_set_io_weight(u, name, &c->startup_io_weight, message, flags, error); |
| |
| if (streq(name, "BlockIOAccounting")) |
| return bus_cgroup_set_boolean(u, name, &c->blockio_accounting, CGROUP_MASK_BLKIO, message, flags, error); |
| |
| if (streq(name, "BlockIOWeight")) |
| return bus_cgroup_set_blockio_weight(u, name, &c->blockio_weight, message, flags, error); |
| |
| if (streq(name, "StartupBlockIOWeight")) |
| return bus_cgroup_set_blockio_weight(u, name, &c->startup_blockio_weight, message, flags, error); |
| |
| if (streq(name, "MemoryAccounting")) |
| return bus_cgroup_set_boolean(u, name, &c->memory_accounting, CGROUP_MASK_MEMORY, message, flags, error); |
| |
| if (streq(name, "MemoryMin")) { |
| r = bus_cgroup_set_memory_protection(u, name, &c->memory_min, message, flags, error); |
| if (r > 0) |
| c->memory_min_set = true; |
| return r; |
| } |
| |
| if (streq(name, "MemoryLow")) { |
| r = bus_cgroup_set_memory_protection(u, name, &c->memory_low, message, flags, error); |
| if (r > 0) |
| c->memory_low_set = true; |
| return r; |
| } |
| |
| if (streq(name, "DefaultMemoryMin")) { |
| r = bus_cgroup_set_memory_protection(u, name, &c->default_memory_min, message, flags, error); |
| if (r > 0) |
| c->default_memory_min_set = true; |
| return r; |
| } |
| |
| if (streq(name, "DefaultMemoryLow")) { |
| r = bus_cgroup_set_memory_protection(u, name, &c->default_memory_low, message, flags, error); |
| if (r > 0) |
| c->default_memory_low_set = true; |
| return r; |
| } |
| |
| if (streq(name, "MemoryHigh")) |
| return bus_cgroup_set_memory(u, name, &c->memory_high, message, flags, error); |
| |
| if (streq(name, "MemorySwapMax")) |
| return bus_cgroup_set_swap(u, name, &c->memory_swap_max, message, flags, error); |
| |
| if (streq(name, "MemoryMax")) |
| return bus_cgroup_set_memory(u, name, &c->memory_max, message, flags, error); |
| |
| if (streq(name, "MemoryLimit")) |
| return bus_cgroup_set_memory(u, name, &c->memory_limit, message, flags, error); |
| |
| if (streq(name, "MemoryMinScale")) { |
| r = bus_cgroup_set_memory_protection_scale(u, name, &c->memory_min, message, flags, error); |
| if (r > 0) |
| c->memory_min_set = true; |
| return r; |
| } |
| |
| if (streq(name, "MemoryLowScale")) { |
| r = bus_cgroup_set_memory_protection_scale(u, name, &c->memory_low, message, flags, error); |
| if (r > 0) |
| c->memory_low_set = true; |
| return r; |
| } |
| |
| if (streq(name, "DefaultMemoryMinScale")) { |
| r = bus_cgroup_set_memory_protection_scale(u, name, &c->default_memory_min, message, flags, error); |
| if (r > 0) |
| c->default_memory_min_set = true; |
| return r; |
| } |
| |
| if (streq(name, "DefaultMemoryLowScale")) { |
| r = bus_cgroup_set_memory_protection_scale(u, name, &c->default_memory_low, message, flags, error); |
| if (r > 0) |
| c->default_memory_low_set = true; |
| return r; |
| } |
| |
| if (streq(name, "MemoryHighScale")) |
| return bus_cgroup_set_memory_scale(u, name, &c->memory_high, message, flags, error); |
| |
| if (streq(name, "MemorySwapMaxScale")) |
| return bus_cgroup_set_swap_scale(u, name, &c->memory_swap_max, message, flags, error); |
| |
| if (streq(name, "MemoryMaxScale")) |
| return bus_cgroup_set_memory_scale(u, name, &c->memory_max, message, flags, error); |
| |
| if (streq(name, "MemoryLimitScale")) |
| return bus_cgroup_set_memory_scale(u, name, &c->memory_limit, message, flags, error); |
| |
| if (streq(name, "TasksAccounting")) |
| return bus_cgroup_set_boolean(u, name, &c->tasks_accounting, CGROUP_MASK_PIDS, message, flags, error); |
| |
| if (streq(name, "TasksMax")) |
| return bus_cgroup_set_tasks_max(u, name, &c->tasks_max, message, flags, error); |
| |
| if (streq(name, "TasksMaxScale")) |
| return bus_cgroup_set_tasks_max_scale(u, name, &c->tasks_max, message, flags, error); |
| |
| if (streq(name, "CPUQuotaPerSecUSec")) { |
| uint64_t u64; |
| |
| r = sd_bus_message_read(message, "t", &u64); |
| if (r < 0) |
| return r; |
| |
| if (u64 <= 0) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "CPUQuotaPerSecUSec= value out of range"); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| c->cpu_quota_per_sec_usec = u64; |
| u->warned_clamping_cpu_quota_period = false; |
| unit_invalidate_cgroup(u, CGROUP_MASK_CPU); |
| |
| if (c->cpu_quota_per_sec_usec == USEC_INFINITY) |
| unit_write_setting(u, flags, "CPUQuota", "CPUQuota="); |
| else |
| /* config_parse_cpu_quota() requires an integer, so truncating division is used on |
| * purpose here. */ |
| unit_write_settingf(u, flags, "CPUQuota", |
| "CPUQuota=%0.f%%", |
| (double) (c->cpu_quota_per_sec_usec / 10000)); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "CPUQuotaPeriodUSec")) { |
| uint64_t u64; |
| |
| r = sd_bus_message_read(message, "t", &u64); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| c->cpu_quota_period_usec = u64; |
| u->warned_clamping_cpu_quota_period = false; |
| unit_invalidate_cgroup(u, CGROUP_MASK_CPU); |
| if (c->cpu_quota_period_usec == USEC_INFINITY) |
| unit_write_setting(u, flags, "CPUQuotaPeriodSec", "CPUQuotaPeriodSec="); |
| else { |
| char v[FORMAT_TIMESPAN_MAX]; |
| unit_write_settingf(u, flags, "CPUQuotaPeriodSec", |
| "CPUQuotaPeriodSec=%s", |
| format_timespan(v, sizeof(v), c->cpu_quota_period_usec, 1)); |
| } |
| } |
| |
| return 1; |
| |
| } else if (STR_IN_SET(name, "AllowedCPUs", "AllowedMemoryNodes")) { |
| const void *a; |
| size_t n; |
| _cleanup_(cpu_set_reset) CPUSet new_set = {}; |
| |
| r = sd_bus_message_read_array(message, 'y', &a, &n); |
| if (r < 0) |
| return r; |
| |
| r = cpu_set_from_dbus(a, n, &new_set); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *setstr = NULL; |
| _cleanup_free_ char *data = NULL; |
| CPUSet *set; |
| |
| setstr = cpu_set_to_range_string(&new_set); |
| |
| if (streq(name, "AllowedCPUs")) |
| set = &c->cpuset_cpus; |
| else |
| set = &c->cpuset_mems; |
| |
| if (asprintf(&data, "%s=%s", name, setstr) < 0) |
| return -ENOMEM; |
| |
| cpu_set_reset(set); |
| cpu_set_add_all(set, &new_set); |
| unit_invalidate_cgroup(u, CGROUP_MASK_CPUSET); |
| unit_write_setting(u, flags, name, data); |
| } |
| |
| return 1; |
| |
| } else if ((iol_type = cgroup_io_limit_type_from_string(name)) >= 0) { |
| const char *path; |
| unsigned n = 0; |
| uint64_t u64; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "(st)", &path, &u64)) > 0) { |
| |
| if (!path_is_normalized(path)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path '%s' specified in %s= is not normalized.", name, path); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupIODeviceLimit *a = NULL, *b; |
| |
| LIST_FOREACH(device_limits, b, c->io_device_limits) { |
| if (path_equal(path, b->path)) { |
| a = b; |
| break; |
| } |
| } |
| |
| if (!a) { |
| CGroupIOLimitType type; |
| |
| a = new0(CGroupIODeviceLimit, 1); |
| if (!a) |
| return -ENOMEM; |
| |
| a->path = strdup(path); |
| if (!a->path) { |
| free(a); |
| return -ENOMEM; |
| } |
| |
| for (type = 0; type < _CGROUP_IO_LIMIT_TYPE_MAX; type++) |
| a->limits[type] = cgroup_io_limit_defaults[type]; |
| |
| LIST_PREPEND(device_limits, c->io_device_limits, a); |
| } |
| |
| a->limits[iol_type] = u64; |
| } |
| |
| n++; |
| } |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupIODeviceLimit *a; |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| size_t size = 0; |
| |
| if (n == 0) { |
| LIST_FOREACH(device_limits, a, c->io_device_limits) |
| a->limits[iol_type] = cgroup_io_limit_defaults[iol_type]; |
| } |
| |
| unit_invalidate_cgroup(u, CGROUP_MASK_IO); |
| |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| fprintf(f, "%s=\n", name); |
| LIST_FOREACH(device_limits, a, c->io_device_limits) |
| if (a->limits[iol_type] != cgroup_io_limit_defaults[iol_type]) |
| fprintf(f, "%s=%s %" PRIu64 "\n", name, a->path, a->limits[iol_type]); |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| unit_write_setting(u, flags, name, buf); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "IODeviceWeight")) { |
| const char *path; |
| uint64_t weight; |
| unsigned n = 0; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "(st)", &path, &weight)) > 0) { |
| |
| if (!path_is_normalized(path)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path '%s' specified in %s= is not normalized.", name, path); |
| |
| if (!CGROUP_WEIGHT_IS_OK(weight) || weight == CGROUP_WEIGHT_INVALID) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "IODeviceWeight= value out of range"); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupIODeviceWeight *a = NULL, *b; |
| |
| LIST_FOREACH(device_weights, b, c->io_device_weights) { |
| if (path_equal(b->path, path)) { |
| a = b; |
| break; |
| } |
| } |
| |
| if (!a) { |
| a = new0(CGroupIODeviceWeight, 1); |
| if (!a) |
| return -ENOMEM; |
| |
| a->path = strdup(path); |
| if (!a->path) { |
| free(a); |
| return -ENOMEM; |
| } |
| LIST_PREPEND(device_weights, c->io_device_weights, a); |
| } |
| |
| a->weight = weight; |
| } |
| |
| n++; |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| CGroupIODeviceWeight *a; |
| size_t size = 0; |
| |
| if (n == 0) { |
| while (c->io_device_weights) |
| cgroup_context_free_io_device_weight(c, c->io_device_weights); |
| } |
| |
| unit_invalidate_cgroup(u, CGROUP_MASK_IO); |
| |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| fputs("IODeviceWeight=\n", f); |
| LIST_FOREACH(device_weights, a, c->io_device_weights) |
| fprintf(f, "IODeviceWeight=%s %" PRIu64 "\n", a->path, a->weight); |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| unit_write_setting(u, flags, name, buf); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "IODeviceLatencyTargetUSec")) { |
| const char *path; |
| uint64_t target; |
| unsigned n = 0; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "(st)", &path, &target)) > 0) { |
| |
| if (!path_is_normalized(path)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path '%s' specified in %s= is not normalized.", name, path); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupIODeviceLatency *a = NULL, *b; |
| |
| LIST_FOREACH(device_latencies, b, c->io_device_latencies) { |
| if (path_equal(b->path, path)) { |
| a = b; |
| break; |
| } |
| } |
| |
| if (!a) { |
| a = new0(CGroupIODeviceLatency, 1); |
| if (!a) |
| return -ENOMEM; |
| |
| a->path = strdup(path); |
| if (!a->path) { |
| free(a); |
| return -ENOMEM; |
| } |
| LIST_PREPEND(device_latencies, c->io_device_latencies, a); |
| } |
| |
| a->target_usec = target; |
| } |
| |
| n++; |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| char ts[FORMAT_TIMESPAN_MAX]; |
| CGroupIODeviceLatency *a; |
| size_t size = 0; |
| |
| if (n == 0) { |
| while (c->io_device_latencies) |
| cgroup_context_free_io_device_latency(c, c->io_device_latencies); |
| } |
| |
| unit_invalidate_cgroup(u, CGROUP_MASK_IO); |
| |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| fputs("IODeviceLatencyTargetSec=\n", f); |
| LIST_FOREACH(device_latencies, a, c->io_device_latencies) |
| fprintf(f, "IODeviceLatencyTargetSec=%s %s\n", |
| a->path, format_timespan(ts, sizeof(ts), a->target_usec, 1)); |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| unit_write_setting(u, flags, name, buf); |
| } |
| |
| return 1; |
| |
| } else if (STR_IN_SET(name, "BlockIOReadBandwidth", "BlockIOWriteBandwidth")) { |
| const char *path; |
| bool read = true; |
| unsigned n = 0; |
| uint64_t u64; |
| |
| if (streq(name, "BlockIOWriteBandwidth")) |
| read = false; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "(st)", &path, &u64)) > 0) { |
| |
| if (!path_is_normalized(path)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path '%s' specified in %s= is not normalized.", name, path); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupBlockIODeviceBandwidth *a = NULL, *b; |
| |
| LIST_FOREACH(device_bandwidths, b, c->blockio_device_bandwidths) { |
| if (path_equal(path, b->path)) { |
| a = b; |
| break; |
| } |
| } |
| |
| if (!a) { |
| a = new0(CGroupBlockIODeviceBandwidth, 1); |
| if (!a) |
| return -ENOMEM; |
| |
| a->rbps = CGROUP_LIMIT_MAX; |
| a->wbps = CGROUP_LIMIT_MAX; |
| a->path = strdup(path); |
| if (!a->path) { |
| free(a); |
| return -ENOMEM; |
| } |
| |
| LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, a); |
| } |
| |
| if (read) |
| a->rbps = u64; |
| else |
| a->wbps = u64; |
| } |
| |
| n++; |
| } |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupBlockIODeviceBandwidth *a; |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| size_t size = 0; |
| |
| if (n == 0) { |
| LIST_FOREACH(device_bandwidths, a, c->blockio_device_bandwidths) { |
| if (read) |
| a->rbps = CGROUP_LIMIT_MAX; |
| else |
| a->wbps = CGROUP_LIMIT_MAX; |
| } |
| } |
| |
| unit_invalidate_cgroup(u, CGROUP_MASK_BLKIO); |
| |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| if (read) { |
| fputs("BlockIOReadBandwidth=\n", f); |
| LIST_FOREACH(device_bandwidths, a, c->blockio_device_bandwidths) |
| if (a->rbps != CGROUP_LIMIT_MAX) |
| fprintf(f, "BlockIOReadBandwidth=%s %" PRIu64 "\n", a->path, a->rbps); |
| } else { |
| fputs("BlockIOWriteBandwidth=\n", f); |
| LIST_FOREACH(device_bandwidths, a, c->blockio_device_bandwidths) |
| if (a->wbps != CGROUP_LIMIT_MAX) |
| fprintf(f, "BlockIOWriteBandwidth=%s %" PRIu64 "\n", a->path, a->wbps); |
| } |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| |
| unit_write_setting(u, flags, name, buf); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "BlockIODeviceWeight")) { |
| const char *path; |
| uint64_t weight; |
| unsigned n = 0; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(st)"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "(st)", &path, &weight)) > 0) { |
| |
| if (!path_is_normalized(path)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path '%s' specified in %s= is not normalized.", name, path); |
| |
| if (!CGROUP_BLKIO_WEIGHT_IS_OK(weight) || weight == CGROUP_BLKIO_WEIGHT_INVALID) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "BlockIODeviceWeight= out of range"); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupBlockIODeviceWeight *a = NULL, *b; |
| |
| LIST_FOREACH(device_weights, b, c->blockio_device_weights) { |
| if (path_equal(b->path, path)) { |
| a = b; |
| break; |
| } |
| } |
| |
| if (!a) { |
| a = new0(CGroupBlockIODeviceWeight, 1); |
| if (!a) |
| return -ENOMEM; |
| |
| a->path = strdup(path); |
| if (!a->path) { |
| free(a); |
| return -ENOMEM; |
| } |
| LIST_PREPEND(device_weights, c->blockio_device_weights, a); |
| } |
| |
| a->weight = weight; |
| } |
| |
| n++; |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| CGroupBlockIODeviceWeight *a; |
| size_t size = 0; |
| |
| if (n == 0) { |
| while (c->blockio_device_weights) |
| cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights); |
| } |
| |
| unit_invalidate_cgroup(u, CGROUP_MASK_BLKIO); |
| |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| fputs("BlockIODeviceWeight=\n", f); |
| LIST_FOREACH(device_weights, a, c->blockio_device_weights) |
| fprintf(f, "BlockIODeviceWeight=%s %" PRIu64 "\n", a->path, a->weight); |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| |
| unit_write_setting(u, flags, name, buf); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "DevicePolicy")) { |
| const char *policy; |
| CGroupDevicePolicy p; |
| |
| r = sd_bus_message_read(message, "s", &policy); |
| if (r < 0) |
| return r; |
| |
| p = cgroup_device_policy_from_string(policy); |
| if (p < 0) |
| return -EINVAL; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| c->device_policy = p; |
| unit_invalidate_cgroup(u, CGROUP_MASK_DEVICES); |
| unit_write_settingf(u, flags, name, "DevicePolicy=%s", policy); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "DeviceAllow")) { |
| const char *path, *rwm; |
| unsigned n = 0; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(ss)"); |
| if (r < 0) |
| return r; |
| |
| while ((r = sd_bus_message_read(message, "(ss)", &path, &rwm)) > 0) { |
| |
| if (!valid_device_allow_pattern(path) || strpbrk(path, WHITESPACE)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "DeviceAllow= requires device node or pattern"); |
| |
| if (isempty(rwm)) |
| rwm = "rwm"; |
| else if (!in_charset(rwm, "rwm")) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "DeviceAllow= requires combination of rwm flags"); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| CGroupDeviceAllow *a = NULL, *b; |
| |
| LIST_FOREACH(device_allow, b, c->device_allow) { |
| if (path_equal(b->path, path)) { |
| a = b; |
| break; |
| } |
| } |
| |
| if (!a) { |
| a = new0(CGroupDeviceAllow, 1); |
| if (!a) |
| return -ENOMEM; |
| |
| a->path = strdup(path); |
| if (!a->path) { |
| free(a); |
| return -ENOMEM; |
| } |
| |
| LIST_PREPEND(device_allow, c->device_allow, a); |
| } |
| |
| a->r = !!strchr(rwm, 'r'); |
| a->w = !!strchr(rwm, 'w'); |
| a->m = !!strchr(rwm, 'm'); |
| } |
| |
| n++; |
| } |
| if (r < 0) |
| return r; |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| CGroupDeviceAllow *a; |
| size_t size = 0; |
| |
| if (n == 0) { |
| while (c->device_allow) |
| cgroup_context_free_device_allow(c, c->device_allow); |
| } |
| |
| unit_invalidate_cgroup(u, CGROUP_MASK_DEVICES); |
| |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| fputs("DeviceAllow=\n", f); |
| LIST_FOREACH(device_allow, a, c->device_allow) |
| fprintf(f, "DeviceAllow=%s %s%s%s\n", a->path, a->r ? "r" : "", a->w ? "w" : "", a->m ? "m" : ""); |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| unit_write_setting(u, flags, name, buf); |
| } |
| |
| return 1; |
| |
| } else if (streq(name, "IPAccounting")) { |
| int b; |
| |
| r = sd_bus_message_read(message, "b", &b); |
| if (r < 0) |
| return r; |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| c->ip_accounting = b; |
| |
| unit_invalidate_cgroup_bpf(u); |
| unit_write_settingf(u, flags, name, "IPAccounting=%s", yes_no(b)); |
| } |
| |
| return 1; |
| |
| } else if (STR_IN_SET(name, "IPAddressAllow", "IPAddressDeny")) { |
| IPAddressAccessItem **list; |
| size_t n = 0; |
| |
| list = streq(name, "IPAddressAllow") ? &c->ip_address_allow : &c->ip_address_deny; |
| |
| r = sd_bus_message_enter_container(message, 'a', "(iayu)"); |
| if (r < 0) |
| return r; |
| |
| for (;;) { |
| const void *ap; |
| int32_t family; |
| uint32_t prefixlen; |
| size_t an; |
| |
| r = sd_bus_message_enter_container(message, 'r', "iayu"); |
| if (r < 0) |
| return r; |
| if (r == 0) |
| break; |
| |
| r = sd_bus_message_read(message, "i", &family); |
| if (r < 0) |
| return r; |
| |
| if (!IN_SET(family, AF_INET, AF_INET6)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= expects IPv4 or IPv6 addresses only.", name); |
| |
| r = sd_bus_message_read_array(message, 'y', &ap, &an); |
| if (r < 0) |
| return r; |
| |
| if (an != FAMILY_ADDRESS_SIZE(family)) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "IP address has wrong size for family (%s, expected %zu, got %zu)", |
| af_to_name(family), FAMILY_ADDRESS_SIZE(family), an); |
| |
| r = sd_bus_message_read(message, "u", &prefixlen); |
| if (r < 0) |
| return r; |
| |
| if (prefixlen > FAMILY_ADDRESS_SIZE(family)*8) |
| return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Prefix length %" PRIu32 " too large for address family %s.", prefixlen, af_to_name(family)); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| IPAddressAccessItem *item; |
| |
| item = new0(IPAddressAccessItem, 1); |
| if (!item) |
| return -ENOMEM; |
| |
| item->family = family; |
| item->prefixlen = prefixlen; |
| memcpy(&item->address, ap, an); |
| |
| LIST_PREPEND(items, *list, item); |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| n++; |
| } |
| |
| r = sd_bus_message_exit_container(message); |
| if (r < 0) |
| return r; |
| |
| *list = ip_address_access_reduce(*list); |
| |
| if (!UNIT_WRITE_FLAGS_NOOP(flags)) { |
| _cleanup_free_ char *buf = NULL; |
| _cleanup_fclose_ FILE *f = NULL; |
| IPAddressAccessItem *item; |
| size_t size = 0; |
| |
| if (n == 0) |
| *list = ip_address_access_free_all(*list); |
| |
| unit_invalidate_cgroup_bpf(u); |
| f = open_memstream(&buf, &size); |
| if (!f) |
| return -ENOMEM; |
| |
| (void) __fsetlocking(f, FSETLOCKING_BYCALLER); |
| |
| fputs(name, f); |
| fputs("=\n", f); |
| |
| LIST_FOREACH(items, item, *list) { |
| char buffer[CONST_MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN)]; |
| |
| errno = 0; |
| if (!inet_ntop(item->family, &item->address, buffer, sizeof(buffer))) |
| return errno > 0 ? -errno : -EINVAL; |
| |
| fprintf(f, "%s=%s/%u\n", name, buffer, item->prefixlen); |
| } |
| |
| r = fflush_and_check(f); |
| if (r < 0) |
| return r; |
| |
| unit_write_setting(u, flags, name, buf); |
| |
| if (*list) { |
| r = bpf_firewall_supported(); |
| if (r < 0) |
| return r; |
| if (r == BPF_FIREWALL_UNSUPPORTED) { |
| static bool warned = false; |
| |
| log_full(warned ? LOG_DEBUG : LOG_WARNING, |
| "Transient unit %s configures an IP firewall, but the local system does not support BPF/cgroup firewalling.\n" |
| "Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first started transient unit using IP firewalling.)", u->id); |
| |
| warned = true; |
| } |
| } |
| } |
| |
| return 1; |
| } |
| |
| if (u->transient && u->load_state == UNIT_STUB) |
| return bus_cgroup_set_transient_property(u, c, name, message, flags, error); |
| |
| return 0; |
| } |