Commit graph

7 commits

Author SHA1 Message Date
Thomas Haller
08eff4c46e
glib-aux: rename IP address related helpers from "nm-inet-utils.h"
- name things related to `in_addr_t`, `struct in6_addr`, `NMIPAddr` as
  `nm_ip4_addr_*()`, `nm_ip6_addr_*()`, `nm_ip_addr_*()`, respectively.

- we have a wrapper `nm_inet_ntop()` for `inet_ntop()`. This name
  of our wrapper is chosen to be familiar with the libc underlying
  function. With this, also name functions that are about string
  representations of addresses `nm_inet_*()`, `nm_inet4_*()`,
  `nm_inet6_*()`. For example, `nm_inet_parse_str()`,
  `nm_inet_is_normalized()`.

<<<<

  R() {
     git grep -l "$1" | xargs sed -i "s/\<$1\>/$2/g"
  }

  R NM_CMP_DIRECT_IN4ADDR_SAME_PREFIX          NM_CMP_DIRECT_IP4_ADDR_SAME_PREFIX
  R NM_CMP_DIRECT_IN6ADDR_SAME_PREFIX          NM_CMP_DIRECT_IP6_ADDR_SAME_PREFIX
  R NM_UTILS_INET_ADDRSTRLEN                   NM_INET_ADDRSTRLEN
  R _nm_utils_inet4_ntop                       nm_inet4_ntop
  R _nm_utils_inet6_ntop                       nm_inet6_ntop
  R _nm_utils_ip4_get_default_prefix           nm_ip4_addr_get_default_prefix
  R _nm_utils_ip4_get_default_prefix0          nm_ip4_addr_get_default_prefix0
  R _nm_utils_ip4_netmask_to_prefix            nm_ip4_addr_netmask_to_prefix
  R _nm_utils_ip4_prefix_to_netmask            nm_ip4_addr_netmask_from_prefix
  R nm_utils_inet4_ntop_dup                    nm_inet4_ntop_dup
  R nm_utils_inet6_ntop_dup                    nm_inet6_ntop_dup
  R nm_utils_inet_ntop                         nm_inet_ntop
  R nm_utils_inet_ntop_dup                     nm_inet_ntop_dup
  R nm_utils_ip4_address_clear_host_address    nm_ip4_addr_clear_host_address
  R nm_utils_ip4_address_is_link_local         nm_ip4_addr_is_link_local
  R nm_utils_ip4_address_is_loopback           nm_ip4_addr_is_loopback
  R nm_utils_ip4_address_is_zeronet            nm_ip4_addr_is_zeronet
  R nm_utils_ip4_address_same_prefix           nm_ip4_addr_same_prefix
  R nm_utils_ip4_address_same_prefix_cmp       nm_ip4_addr_same_prefix_cmp
  R nm_utils_ip6_address_clear_host_address    nm_ip6_addr_clear_host_address
  R nm_utils_ip6_address_same_prefix           nm_ip6_addr_same_prefix
  R nm_utils_ip6_address_same_prefix_cmp       nm_ip6_addr_same_prefix_cmp
  R nm_utils_ip6_is_ula                        nm_ip6_addr_is_ula
  R nm_utils_ip_address_same_prefix            nm_ip_addr_same_prefix
  R nm_utils_ip_address_same_prefix_cmp        nm_ip_addr_same_prefix_cmp
  R nm_utils_ip_is_site_local                  nm_ip_addr_is_site_local
  R nm_utils_ipaddr_is_normalized              nm_inet_is_normalized
  R nm_utils_ipaddr_is_valid                   nm_inet_is_valid
  R nm_utils_ipx_address_clear_host_address    nm_ip_addr_clear_host_address
  R nm_utils_parse_inaddr                      nm_inet_parse_str
  R nm_utils_parse_inaddr_bin                  nm_inet_parse_bin
  R nm_utils_parse_inaddr_bin_full             nm_inet_parse_bin_full
  R nm_utils_parse_inaddr_prefix               nm_inet_parse_with_prefix_str
  R nm_utils_parse_inaddr_prefix_bin           nm_inet_parse_with_prefix_bin
  R test_nm_utils_ip6_address_same_prefix      test_nm_ip_addr_same_prefix

  ./contrib/scripts/nm-code-format.sh -F
2022-08-25 19:05:51 +02:00
Thomas Haller
615221a99c format: reformat source tree with clang-format 13.0
We use clang-format for automatic formatting of our source files.
Since clang-format is actively maintained software, the actual
formatting depends on the used version of clang-format. That is
unfortunate and painful, but really unavoidable unless clang-format
would be strictly bug-compatible.

So the version that we must use is from the current Fedora release, which
is also tested by our gitlab-ci. Previously, we were using Fedora 34 with
clang-tools-extra-12.0.1-1.fc34.x86_64.

As Fedora 35 comes along, we need to update our formatting as Fedora 35
comes with version "13.0.0~rc1-1.fc35".
An alternative would be to freeze on version 12, but that has different
problems (like, it's cumbersome to rebuild clang 12 on Fedora 35 and it
would be cumbersome for our developers which are on Fedora 35 to use a
clang that they cannot easily install).

The (differently painful) solution is to reformat from time to time, as we
switch to a new Fedora (and thus clang) version.
Usually we would expect that such a reformatting brings minor changes.
But this time, the changes are huge. That is mentioned in the release
notes [1] as

  Makes PointerAligment: Right working with AlignConsecutiveDeclarations. (Fixes https://llvm.org/PR27353)

[1] https://releases.llvm.org/13.0.0/tools/clang/docs/ReleaseNotes.html#clang-format
2021-11-29 09:31:09 +00:00
Thomas Haller
58287cbcc0 core: rework IP configuration in NetworkManager using layer 3 configuration
Completely rework IP configuration in the daemon. Use NML3Cfg as layer 3
manager for the IP configuration of an interface. Use NML3ConfigData as
pieces of configuration that the various components collect and
configure. NMDevice is managing most of the IP configuration at a higher
level, that is, it starts DHCP and other IP methods. Rework the state
handling there.

This is a huge rework of how NetworkManager daemon handles IP
configuration. Some fallout is to be expected.

It appears the patch deletes many lines of code. That is not accurate, because
you also have to count the files `src/core/nm-l3*`, which were unused previously.

Co-authored-by: Beniamino Galvani <bgalvani@redhat.com>
2021-11-18 16:21:29 +01:00
Beniamino Galvani
d8186b1253 core: better handle sd-resolved errors when resolving hostnames
If NM tries to resolve a link-local address, systemd-resolved returns
error "org.freedesktop.resolve1.NoNameServers" because those addresses
can only be resolved via other protocols like LLMNR or mDNS.

Previously NM would fall back to spawning the helper, which would ask
again to systemd-resolved via /etc/resolv.conf. In this way, a
synthetic result (or one obtained not from DNS) would be returned.

We must avoid non-DNS results. When systemd-resolved returns an error
that is not a D-Bus one (as MethodNotFound) but is a
"org.fd.resolve1.*" [1], we can assume that systemd-resolved is
running properly and we shall never fall back to spawning the helper.

[1] https://www.freedesktop.org/wiki/Software/systemd/resolved/#commonerrors

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/833
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/1006
2021-10-29 16:43:27 +02:00
Thomas Haller
f5dbf476e3
core: rename to_str() methods to to_string()
It's more common to name the to-string method *_to_string(). Rename.
2021-08-11 14:17:25 +02:00
Beniamino Galvani
b26449a9c7 device: add a nm_device_resolve_address()
The new function resolve an address via DNS, first by using
systemd-resolved (disabling synthesized results) and then by spawning
the daemon helper.

Trying systemd-resolved via D-Bus before spawning the helper is
important to get a correct result. Suppose that resolv.conf points to
the local stub listener at 127.0.0.53; if NM only spawns the helper,
the helper will query the local systemd-resolved which could return a
synthesized result.

Therefore, we first query systemd-resolved with NO_SYNTHESIZE and
then, in case of error, we spawn the helper.

(cherry picked from commit 27eae4043b)
2021-06-11 21:59:11 +02:00
Thomas Haller
0bc5a2c76f
core: add "nm-device-utils.[ch]" with simple helper functions
"nm-device.c" is huge, and it does complicated things like handling the
state of the device and IP configuration.

It also contains simpler, individual functions, like converting enums to
strings. Let's move those trivial functions to a new module, so that the
remaining part is smaller.

"nm-device-utils.[ch]" should only contain simpler functions that have
no complex behavior or state.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/840
2021-05-06 12:19:44 +02:00