NetworkManager/src
Popax21 6e2de1d2b3 core: restrict connectivity check lookups to per-link DNS if available
Restrict connectivity check DNS lookups to just the relevant link if the link
has a per-link DNS resolver configured. This change was previously discussed as
part of issue
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1836, and
brings NM's behavior back in line with the behavior documented in the man page.

The connectivity check checks for a per-link DNS resolver by querying
systemd-resolved's `ScopeMask` for the link; this involves a small D-Bus
roundtrip, but is ultimately the more flexible solution since it is also capable
of dealing with per-link DNS configuration stemming from other sources.

Fixes: e6dac4f0b6 ('core: don't restrict DNS interface when performing connectivity check')
2025-11-19 14:54:40 +00:00
..
c-list c-list: re-import git-subtree for 'src/c-list' 2022-07-19 09:02:36 +02:00
c-rbtree c-rbtree: re-import git-subtree for 'src/c-rbtree' 2022-11-23 18:00:31 +01:00
c-siphash c-siphash: re-import git-subtree for 'src/c-siphash' 2022-11-23 18:00:33 +01:00
c-stdaux c-stdaux: re-import git-subtree for 'src/c-stdaux' 2023-03-03 13:40:38 +01:00
contrib contrib/nm-vpn-plugin-utils: add nm_vpn_plugin_utils_get_cert_path() 2025-07-09 15:06:51 +02:00
core core: restrict connectivity check lookups to per-link DNS if available 2025-11-19 14:54:40 +00:00
libnm-base dns: Add resolve-mode and certification-authority keys to global-dns 2025-01-29 14:41:47 +01:00
libnm-client-aux-extern nmcli: add support for managing wireguard peers 2025-06-16 13:20:02 +02:00
libnm-client-impl libnm: move hsr symbols to the right version 2025-11-18 10:39:49 +01:00
libnm-client-public libnm, nmcli: introduce new "prefix-delegation" setting 2025-04-02 11:21:59 +02:00
libnm-client-test typo fix: allows to -> allows one to 2025-03-26 19:22:01 +01:00
libnm-core-aux-extern nmcli: add support for managing wireguard peers 2025-06-16 13:20:02 +02:00
libnm-core-aux-intern mptcp: set the laminar flag by default 2025-11-19 12:54:09 +00:00
libnm-core-impl mptcp: add 'laminar' endpoint support 2025-11-19 12:54:09 +00:00
libnm-core-intern libnm, nmcli: introduce new "prefix-delegation" setting 2025-04-02 11:21:59 +02:00
libnm-core-public mptcp: add 'laminar' endpoint support 2025-11-19 12:54:09 +00:00
libnm-crypto Updated code format 2024-04-08 06:35:20 +00:00
libnm-glib-aux libnm-glib-aux: add temp name argument to nm_utils_file_set_contents() 2025-10-22 09:56:39 +02:00
libnm-lldp format: run nm-code-format 2024-10-04 11:07:35 +02:00
libnm-log-core all: code format 2025-05-13 11:43:33 +02:00
libnm-log-null all: add some README.md files describing the purpose of our sources 2021-08-19 17:51:11 +02:00
libnm-platform mptcp: add 'laminar' endpoint support 2025-11-19 12:54:09 +00:00
libnm-std-aux typo fix: allow to -> allow one to 2025-03-26 19:22:56 +01:00
libnm-systemd-core dhcp6: fix accessor macro for t2 2025-07-23 11:00:13 +02:00
libnm-systemd-shared merge: branch 'systemd' into jv/systemd-merge 2025-06-02 10:00:31 +02:00
libnm-udev-aux format: reformat source tree with clang-format 13.0 2021-11-29 09:31:09 +00:00
libnmc-base wwan: retry after no operator code 2025-10-10 08:16:57 -04:00
libnmc-setting mptcp: add 'laminar' endpoint support 2025-11-19 12:54:09 +00:00
libnmt-newt nmtui: handle write() errors correctly in nmt_newt_edit_string 2024-06-28 10:58:11 +00:00
linux-headers mptcp: add 'laminar' endpoint support 2025-11-19 12:54:09 +00:00
n-acd n-acd: re-import git-subtree for 'src/n-acd' 2025-10-22 20:09:16 +02:00
n-dhcp4 n-dhcp4: re-import git-subtree for 'src/n-dhcp4' 2025-10-22 20:09:41 +02:00
nm-cloud-setup cloud-setup: configure disconnected wired devices on OCI 2025-04-11 11:44:05 +02:00
nm-compat-headers all: add src/nm-compat-headers for patching included system headers 2022-09-23 11:43:33 +02:00
nm-daemon-helper nm-daemon-helper: add "service" argument 2024-07-04 15:39:03 +02:00
nm-dispatcher all: code format 2025-05-13 11:43:33 +02:00
nm-initrd-generator libnm-glib-aux: add temp name argument to nm_utils_file_set_contents() 2025-10-22 09:56:39 +02:00
nm-online all: use NM_MAX() instead of MAX() 2023-11-15 09:32:21 +01:00
nm-priv-helper format: run nm-code-format 2024-10-04 11:07:35 +02:00
nmcli mptcp: add 'laminar' endpoint support 2025-11-19 12:54:09 +00:00
nmtui nmtui/editor: hide "device" field for loopback connections 2025-04-15 11:43:06 +00:00
tests cli: add support for connection.dnssec 2025-10-13 11:57:53 +02:00
meson.build build: drop "ebpf" configuration for n-acd compilation 2025-10-22 21:48:39 +02:00
README.md nm-sudo: rename to nm-priv-helper 2022-01-11 21:46:55 +01:00

src/

Most of the subdirectories are static helper libraries, which get linked into one of the final build artifacts (like libnm, nmcli or NetworkManager). Static libraries are internal API.

The only public API is libnm, which is a shared library provided client implementations.

Our own clients (like nmcli and nmtui) also use libnm, the shared library. But they also use additional static helper libraries.

The daemon statically links against a part of libnm, the part that provides connection profiles. That is libnm-core. libnm-core is thus statically linked with libnm and the daemon. It does not get linked by clients that already link with libnm (like nmtui).

Read the individual README.md files in the subdirectories for details:

Directory Description
core/ the NetworkManager daemon
nmcli/ nmcli application, a command line client for NetworkManager
nmtui/ nmtui application, a text UI client for NetworkManager
nm-cloud-setup/ service to automatically configure NetworkManager in cloud environment
nm-initrd-generator/ generates NetworkManager configuration by parsing kernel command line options for dracut/initrd
nm-dispatcher/ NetworkManager-dispatcher service to run user scripts
nm-online/ application which checks whether NetworkManager is done, for implementing NetworkManager-wait-online.service
nm-priv-helper/ internal service for privileged operations
nm-daemon-helper/ internal helper binary spawned by NetworkManager
libnm-std-aux/ internal helper library for standard C
libnm-glib-aux/ internal helper library for glib
libnm-log-null/ internal helper library with dummy (null) logging backend
libnm-log-core/ internal helper library with logging backend (syslog) used by daemon
libnm-base/ internal helper library with base definitions
libnm-platform/ internal helper library for netlink and other platform/kernel API
libnm-udev-aux/ internal helper library for libudev
libnm-core-public/ public API of libnm (libnm-core part)
libnm-core-intern/ internal API of libnm-core, used by libnm and daemon
libnm-core-impl/ implementation of libnm-core
libnm-core-aux-intern/ internal helper library on top of libnm-core (used by libnm-core itself)
libnm-core-aux-extern/ internal helper library on top of libnm-core (not used by libnm-core)
libnm-client-public/ public API of libnm (NMClient part)
libnm-client-impl/ implementation of libnm (NMClient)
libnm-client-aux-extern/ internal helper library on top of libnm (not used by libnm itself)
libnmc-base/ internal helper library for libnm clients
libnmc-setting/ internal helper library for setting connection profiles (used by nmcli)
libnmt-newt/ internal helper library for libnewt for nmtui
linux-headers/ extra Linux kernel UAPI headers
contrib/ sources that are not used by NetworkManager itself
tests/ unit tests that are not specific to one of the other directories
libnm-client-test/ internal helper library with test utils for libnm
c-list/ fork of c-util helper library for intrusive, doubly linked list
c-rbtree/ fork of c-util helper library for intrusive Red-Black Tree
c-siphash/ fork of c-util helper library for SIPHash24
c-stdaux/ fork of c-util general purpose helpers for standard C
n-acd/ fork of nettools IPv4 ACD library
n-dhcp4/ fork of nettools DHCPv4 library
libnm-systemd-core/ fork of systemd code as network library
libnm-systemd-shared/ fork of systemd code as general purpose library