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NetworkManager/src/core
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Thomas Haller 4bb3ad0977
core: limit number of exported addresses/routes on D-Bus to 100 
It doesn't scale to export all addresses/routes on D-Bus as properties.
In particular not combined with PropertiesChanged signal. On a busy
system, this causes severe performance issues. It also doesn't seem very
useful. Routes and addresses are complex things (e.g. policy routing).
If you want to do anything serious, you must check netlink (or find
another way to get the information).

Note that NMPlatform already ignores routes of certain protocols
(ip_route_is_alive()). It also does not expose most route attributes,
making the output only useful for very limited cases (e.g. displaying to
the user for information).

Limit the number of exported entries to 100.

Try adding 100K routes one-by-one. Run a `nmcli monitor` instance.
Re-nice the nmcli process and/or keep the CPUs busy. Then start a script
that adds 100k routes. Observe. Glib's D-Bus worker thread receives the
messages and queues them for the main thread. The main thread is too
slow to process them, the memory consumption grows very quickly in Giga
bytes. Afterwards, the memory also is not returned to the operation
system, either because of fragmentation or because the libc allocator
does anyway not return heap memory.

It doesn't work to expose an unlimited number of objects on D-Bus.  At
least not with an API, that sends the full list of all routes, whenever
a route changes. Nobody can use that feature either, because the only
use is a quick overview in `nmcli` output or a GUI. If you see 100+
routes there, that becomes unmanageable anyway. Instead use netlink if
you want to handle the full list of addresses/routes (or some other
API).
2023-11-30 15:48:05 +01:00
..
devices device: change port deactivation reason upon user-request controller deactivation 2023-11-21 20:01:12 -05:00
dhcp dhcp (dhclient): honor ipv4.dhcp-client-id=none 2023-10-18 08:01:09 +02:00
dns libnm: implement "{ipv4,ipv6}.dns-options" as direct STRV property 2023-11-23 17:19:10 +01:00
dnsmasq all: ensure signendess for arguments of NM_{MIN,MAX,CLAMP}() macros matches 2023-08-07 09:24:36 +02:00
ndisc all: use NM_MAX() instead of MAX() 2023-11-15 09:32:21 +01:00
platform platform: add netlink support for bridge port options 2023-10-09 12:25:45 +00:00
ppp ppp: fix plugin name for "rp-pppoe.so" with ppp 2.5 2023-06-14 14:27:25 +02:00
settings ethtool: introduce EEE support 2023-11-03 15:41:21 +00:00
supplicant all: use NM_MAX() instead of MAX() 2023-11-15 09:32:21 +01:00
tests wifi: add "wifi.cloned-mac-address=stable-ssid" 2023-11-16 13:07:54 +01:00
vpn core: add "reason" argument to NMActiveConnection device_state_changed() 2023-10-27 18:02:50 +02:00
main-utils.c main: use _nm_utils_ascii_str_to_int64 instead of strtol for reading pid 2023-10-03 06:25:18 +00:00
main-utils.h core: move nm_main_utils_get_nm_[ug]id() to "nm-core-utils.h" 2022-01-18 18:10:55 +01:00
main.c core/dbus: "RequestName" of NetworkManager D-Bus API later to fix race 2023-03-23 13:06:57 +01:00
meson.build support loopback interface 2022-11-23 20:51:22 +01:00
NetworkManagerUtils.c core: limit number of exported addresses/routes on D-Bus to 100 2023-11-30 15:48:05 +01:00
NetworkManagerUtils.h core: add nm_match_spec_device_data_init_from_platform() helper 2023-06-14 11:07:34 +02:00
nm-act-request.c core: propagate the user-requested reason for act-request disconnection 2023-10-27 18:02:50 +02:00
nm-act-request.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-active-connection.c core: add "reason" argument to NMActiveConnection device_state_changed() 2023-10-27 18:02:50 +02:00
nm-active-connection.h core: add "reason" argument to NMActiveConnection device_state_changed() 2023-10-27 18:02:50 +02:00
nm-audit-manager.c audit: handle error from audit_encode_nv_string() 2022-05-11 17:06:12 +02:00
nm-audit-manager.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-auth-manager.c all: fix deprecated function declaration without a prototype 2022-10-11 17:21:11 +02:00
nm-auth-manager.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-auth-utils.c core: avoid getpwuid() unless necessary in permission check 2023-11-14 10:35:12 +01:00
nm-auth-utils.h format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-bond-manager.c bond: don't configure "counter" on nft rules for slb-bonding/mlag 2023-05-10 19:03:40 +02:00
nm-bond-manager.h core: add NMBondManager to handle NTF rules for balance-slb (MLAG) 2022-10-04 12:37:41 +02:00
nm-checkpoint-manager.c core: use nm_dbus_manager_lookup_object_with_type() 2022-03-13 12:02:08 +01:00
nm-checkpoint-manager.h format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-checkpoint.c checkpoint: Fix segfault crash when rollback 2023-08-29 23:50:18 +02:00
nm-checkpoint.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-config-data.c libnm: refactor "ipv6" argument of _nm_utils_dns_option_validate() 2023-11-23 17:17:51 +01:00
nm-config-data.h core: add nm_config_data_get_ignore_carrier_for_port() helper 2023-06-14 11:15:46 +02:00
nm-config.c all: use nm_strv_contains() instead of nm_strv_find_first() for membership check 2023-10-23 10:09:07 +02:00
nm-config.h build,core: add a "main.migrate-ifcfg-rh" configuration option 2023-07-25 15:39:06 +02:00
nm-connectivity.c all: use NM_MIN() instead of MIN() 2023-11-15 09:32:20 +01:00
nm-connectivity.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-core-utils.c wifi: add "wifi.cloned-mac-address=stable-ssid" 2023-11-16 13:07:54 +01:00
nm-core-utils.h wifi: add "wifi.cloned-mac-address=stable-ssid" 2023-11-16 13:07:54 +01:00
nm-dbus-manager.c all: use NM_MIN() instead of MIN() 2023-11-15 09:32:20 +01:00
nm-dbus-manager.h core/dbus: split RequestName D-Bus call out of initialization for NMDBusManager 2023-03-23 13:06:57 +01:00
nm-dbus-object.c format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-dbus-object.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-dbus-utils.c all: fix various "-Wcast-align=strict" warnings 2022-12-09 09:15:56 +01:00
nm-dbus-utils.h format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-dcb.c format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-dcb.h format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-default-daemon.h libnm: move nm-errors.h include away from nm-connection.h 2022-11-13 23:36:37 +01:00
nm-dhcp-config.c all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-dhcp-config.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-dispatcher.c dispatch dns-change dispatcher event 2023-09-26 17:14:58 +08:00
nm-dispatcher.h dispatch dns-change dispatcher event 2023-09-26 17:14:58 +08:00
nm-firewall-utils.c all: replace NMP_IFNAMSIZ with NM_IFNAMSIZ 2023-05-30 08:51:10 +02:00
nm-firewall-utils.h bond: don't configure "counter" on nft rules for slb-bonding/mlag 2023-05-10 19:03:40 +02:00
nm-firewalld-manager.c format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-firewalld-manager.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-hostname-manager.c hostname: combine implementations of read_hostname() for Gentoo and Slackware 2023-02-08 09:51:25 +01:00
nm-hostname-manager.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-ip-config.c core: rate-limit updates to IP addresses/routes on D-Bus API 2023-11-30 15:41:43 +01:00
nm-ip-config.h core: rate-limit updates to IP addresses/routes on D-Bus API 2023-11-30 15:41:43 +01:00
nm-keep-alive.c doc: replace all (allow-none) annotations by (optional) and/or (nullable) 2023-03-27 11:49:43 +02:00
nm-keep-alive.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-l3-config-data.c all: use NM_MIN() instead of MIN() 2023-11-15 09:32:20 +01:00
nm-l3-config-data.h platform,l3cfg: remove force-commit flag for addresses/routes 2023-03-21 15:58:43 +01:00
nm-l3-ipv4ll.c all: use NM_HASH_SEED_16() macro 2023-11-14 14:15:42 +01:00
nm-l3-ipv4ll.h all: fix various "-Wcast-align=strict" warnings 2022-12-09 09:15:56 +01:00
nm-l3-ipv6ll.c core: improve logging of used IPv6 interface identifier 2023-05-19 12:51:58 +02:00
nm-l3-ipv6ll.h format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
nm-l3cfg.c l3cfg: fix pruning of ACD data (take 2) 2023-10-16 16:58:46 +02:00
nm-l3cfg.h core/trivial: fix typo in code comment 2023-10-19 16:31:31 +02:00
nm-manager.c platform: remove CSME related code 2023-09-25 11:46:24 +00:00
nm-manager.h core: return whether anything changed from nm_manager_devcon_autoconnect_retries_reset() 2023-05-04 10:34:12 +02:00
nm-netns.c core: remove unused tag-less API from nm_netns_watcher*() 2023-03-21 15:58:46 +01:00
nm-netns.h core: remove unused tag-less API from nm_netns_watcher*() 2023-03-21 15:58:46 +01:00
nm-pacrunner-manager.c glib-aux: rename IP address related helpers from "nm-inet-utils.h" 2022-08-25 19:05:51 +02:00
nm-pacrunner-manager.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-policy.c all: use NM_MAX() instead of MAX() 2023-11-15 09:32:21 +01:00
nm-policy.h core: expose and rename nm_policy_device_recheck_auto_activate_schedule() 2023-04-27 08:35:27 +02:00
nm-priv-helper-call.c nm-sudo: rename to nm-priv-helper 2022-01-11 21:46:55 +01:00
nm-priv-helper-call.h nm-sudo: rename to nm-priv-helper 2022-01-11 21:46:55 +01:00
nm-rfkill-manager.c platform: remove CSME related code 2023-09-25 11:46:24 +00:00
nm-rfkill-manager.h platform: remove CSME related code 2023-09-25 11:46:24 +00:00
nm-session-monitor.c all: prefer nm wrappers to automatically attach GSource to default context 2022-03-13 11:59:42 +01:00
nm-session-monitor.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-sleep-monitor.c glib-aux: rename _nm_dbus_signal_connect{,_data}() to _nm_dbus_proxy_*() 2022-11-14 08:05:47 +01:00
nm-sleep-monitor.h all: use _NM_G_TYPE_CHECK_INSTANCE_CAST() for internal uses 2022-12-16 10:55:03 +01:00
nm-test-utils-core.h all: replace NMP_IFNAMSIZ with NM_IFNAMSIZ 2023-05-30 08:51:10 +02:00
nm-types.h format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
org.freedesktop.NetworkManager.conf all: move "src/" directory to "src/core/" 2021-02-08 09:56:41 +01:00
README.l3cfg.md core: rework IP configuration in NetworkManager using layer 3 configuration 2021-11-18 16:21:29 +01:00
README.md all: add some README.md files describing the purpose of our sources 2021-08-19 17:51:11 +02:00
README.next.ip-config.md core: rework IP configuration in NetworkManager using layer 3 configuration 2021-11-18 16:21:29 +01:00

README.md

core

The source code of the NetworkManager daemon.

NetworkManager is a daemon that provides a D-Bus API and a file-based API for configuring the network on a Linux host.

This is the daemon source code.