Commit graph

13052 commits

Author SHA1 Message Date
Beniamino Galvani
0cb5bec7ae initrd: write the hostname to stdout with --stdout
Don't try to open /run/NetworkManager/initrd when called with
--stdout, but instead write the hostname to the standard output.

Fixes: ff70adf873 ('initrd: save hostname to a file in /run')
(cherry picked from commit 5fa97d7796)
2020-07-06 09:59:33 +02:00
Beniamino Galvani
b8246ea367 initrd: fix generating default BOOTIF= connection
There is a bug when parsing a BOOTIF= without any existing
connection. The generated connection doesn't have wired setting and
later we try to access it:

 # nm-initrd-generator --stdout -- BOOTIF=01-50-50-00-9f-21-21
  (nm-initrd-generator:1546): libnm-CRITICAL **: ((libnm-core/nm-setting-wired.c:205)): assertion '<dropped>' failed
  (nm-initrd-generator:1546): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed

Fix this.

https://bugzilla.redhat.com/show_bug.cgi?id=1853277

Fixes: 25a2b6e14f ('initrd: rework command line parsing')
(cherry picked from commit 3023c70e4e)
2020-07-06 09:59:28 +02:00
Beniamino Galvani
5a0be027a8 initrd: fix generation of MTU and cloned-mac-address for masters
Setting a MTU or a cloned MAC for bonds/bridges/teams fails with:

 # nm-initrd-generator -- bond=bond0:eno1,eno2:mode=802.3ad
    ip=192.168.1.5::192.168.1.254:255.255.255.0:MyServer:bond0:none::01:02:03:04:05:06
    bootdev=bond0 nameserver=192.168.1.1

 <warn> cmdline-reader: 'bond' does not support setting cloned-mac-address

Fix this.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/460
(cherry picked from commit 79f70bf5d6)
2020-07-06 09:58:22 +02:00
Beniamino Galvani
791a888cad device: don't reset the MAC without ifindex
nm_device_cleanup() can be called when the device no longer has an
ifindex. In such case, don't try to reset the MAC address as that
would lead to an assertion failure.

(cherry picked from commit 77b6ce7d04)
2020-07-06 09:51:34 +02:00
Beniamino Galvani
60d10b146d ovs: also set cloned MAC address via netlink
We already set the MAC of OVS interfaces in the ovsdb. Unfortunately,
vswitchd doesn't create the interface with the given MAC from the
beginning, but first creates it with a random MAC and then changes it.

This causes a race condition: as soon as NM sees the new link, it
starts IP configuration on it and (possibly later) vswitchd will
change the MAC.

To avoid this, also set the desired MAC via netlink before starting IP
configuration.

https://bugzilla.redhat.com/show_bug.cgi?id=1852106
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/483
(cherry picked from commit 47ec3d14d4)
2020-07-06 09:51:31 +02:00
Beniamino Galvani
7548c29a89 ovs: set MAC address on the bridge for local interfaces
When a user creates a ovs-interface with the same name of the parent
ovs-bridge, openvswitch considers the interface as the "local
interface" [1] and assigns the MAC address of the bridge to the
interface [2].

This is confusing for users, as the cloned MAC property is ignored in
some cases, depending on the ovs-interface name.

Instead, detect when the interface is local and set the MAC from the
ovs-interface connection in the bridge table.

[1] https://github.com/openvswitch/ovs/blob/v2.13.0/vswitchd/vswitch.xml#L2546
[2] https://github.com/openvswitch/ovs/blob/v2.13.0/vswitchd/bridge.c#L4744

(cherry picked from commit 5d4c8521a3)
2020-07-06 09:51:29 +02:00
Beniamino Galvani
5321490180 device: restart DHCP only for devices that are active or activating
do_sleep_wake() tries to restart DHCP for all devices, even ones that
are disconnecting. When a device is disconnecting, it still has a DHCP
client instance but we shouldn't restart it because it makes no sense;
and especially, the device could be already removed.

https://bugzilla.redhat.com/show_bug.cgi?id=1852612
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/561
(cherry picked from commit 2c50438987)
2020-07-06 09:39:53 +02:00
Thomas Haller
838777a891
ndisc/tests: fix assertion in "test-ndisc-fake.c"
First I wanted to fix

  test:ERROR:../src/ndisc/tests/test-ndisc-fake.c:373:test_preference_changed_cb: assertion failed (_a->timestamp == (data->timestamp1 + 3)): (9 == 10)

but that leads to a different failure:

  test:ERROR:../src/ndisc/tests/test-ndisc-fake.c:375:test_preference_changed_cb: assertion failed (_a->lifetime == (9)): (10 == 9)

Instead, the start and end times must match exact (in their duration),
we only allow them to be shifted by up to one second.

Fixes: 8209095ee1 ('ndisc/tests: relax the assertion in "test-ndisc-fake.c"')
(cherry picked from commit b2f03544a7)
2020-07-03 20:41:43 +02:00
Thomas Haller
75177f6967
ndisc/tests: relax the assertion in "test-ndisc-fake.c"
test:ERROR:../src/ndisc/tests/test-ndisc-fake.c:373:test_preference_changed_cb: assertion failed (_a->timestamp == (data->timestamp1 + 3)): (9 == 10)

(cherry picked from commit 8209095ee1)
2020-07-03 20:41:42 +02:00
Thomas Haller
b1a7eda71d
ndisc/tests: make assertion checks a macro and not a function in test-ndisc-fake
By having it a function, the assertion failure does not show the line
number of the origin. Make them a macro, so that we see where exactly it
failed.

(cherry picked from commit 3b896cc642)
2020-07-02 16:37:20 +02:00
Thomas Haller
12e4a4a5df
modem: suppress deprecated warning from libmm for MM_MODEM_CAPABILITY_LTE_ADVANCED
On Ubuntu 20.10, we build against ModemManager 1.14.0 and get a compiler warning:

  ../src/devices/wwan/nm-modem-broadband.c: In function 'try_create_connect_properties':
  ../src/devices/wwan/nm-modem-broadband.c:492:2: error: 'MMModemCapabilityDeprecated' is deprecated [-Werror=deprecated-declarations]
    492 |  if (MODEM_CAPS_3GPP (ctx->caps)) {
        |  ^~

Suppress it.

An alternative would be to drop the flag entirely. It seems the flag
was never used (and never will be used). But if that's true, there is
little harm done checking it. If it's not true, we better keep checking
for older versions.

0cd76bf1c4
(cherry picked from commit 03dc759026)
2020-06-30 18:01:59 +02:00
Thomas Haller
e249262506
platform/tests: avoid test failures accepting route added signals
/route/ip6: NMPlatformSignalAssert: ../src/platform/tests/test-route.c:331, test_ip6_route(): failure to accept signal [0,2] times: ip6-route-changed-added ifindex 0 (3 times received)

(cherry picked from commit 3d542b55ed)
2020-06-30 18:01:58 +02:00
Antonio Cardace
c4528f221b platform: add support for local routes
Also update unit tests.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/407
https://bugzilla.redhat.com/show_bug.cgi?id=1821787
(cherry picked from commit 5d0d13f570)
2020-06-28 17:47:27 +02:00
Beniamino Galvani
2b5ba370a6 device: clean up exported IP6 config when flushing addresses
After flushing addresses and routes, it's also necessary to update the
exported IP6 configuration.

https://bugzilla.redhat.com/show_bug.cgi?id=1848888
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/551

Fixes: e302f5ff77 ('device: flush IP configuration of slaves during activation')
(cherry picked from commit 071104124b)
2020-06-28 17:00:03 +02:00
Thomas Haller
3ced486f41
libnm/match: extend syntax for match patterns with '|', '&', '!' and '\\'
For simple matches like match.interface-name, match.driver, and
match.path, arguably what we had was fine. There each element
(like "eth*") is a wildcard for a single name (like "eth1").

However, for match.kernel-command-line, the elements match individual
command line options, so we should have more flexibility of whether
a parameter is optional or mandatory. Extend the syntax for that.

- the elements can now be prefixed by either '|' or '&'. This makes
  optional or mandatory elements, respectively. The entire match
  evaluates to true if all mandatory elements match (if any) and
  at least one of the optional elements (if any).
  As before, if neither '|' nor '&' is specified, then the element
  is optional (that means, "foo" is the same as "|foo").

- the exclamation mark is still used to invert the match. If used
  alone (like "!foo") it is a shortcut for defining a mandatory match
  ("&!foo").

- the backslash can now be used to escape the special characters
  above. Basically, the special characters ('|', '&', '!') are
  stripped from the start of the element. If what is left afterwards
  is a backslash, it also gets stripped and the remainder is the
  pattern. For example, "\\&foo" has the pattern "&foo" where
  '&' is no longer treated specially. This special handling of
  the backslash is only done at the beginning of the element (after
  the optional special characters). The remaining string is part
  of the pattern, where backslashes might have their own meaning.

This change is mostly backward compatible, except for existing matches
that started with one of the special characters '|', '&', '!', and '\\'.

(cherry picked from commit 824ad6275d)
2020-06-26 13:33:41 +02:00
Thomas Haller
1149dff6a1
core/tests: add unit test for nm_utils_kernel_cmdline_match_check()
(cherry picked from commit fa56e52a4f)
2020-06-26 13:33:41 +02:00
Thomas Haller
8d30c11e0c
core: move matching of kernel command line to separate function
(cherry picked from commit e0f4817148)
2020-06-26 13:33:41 +02:00
Beniamino Galvani
440a0b4078 initrd: set ipv6.method=auto when the autoconfiguration field is 'none'
The 7th field of:

 ip=<client-IP>:[<peer>]:<gateway-IP>:<netmask>:<client_hostname>:<interface>:{none|off|dhcp|on|any|dhcp6|auto6|ibft}:[:[<mtu>][:<macaddr>]]

specifies which kind of autoconfiguration to do. 'none' and 'off' mean
static addresses.

The old network module of dracut used to leave kernel IPv6
autoconfiguration enabled when IPv4 static addresses were
configured. With NM, this corresponds to enabling IPv6 auto method.

https://bugzilla.redhat.com/show_bug.cgi?id=1848943
(cherry picked from commit a39eb9ac14)
2020-06-24 14:54:50 +02:00
Beniamino Galvani
0e15a5e1be initrd: generate connections with IPv6 method 'auto' instead of 'ignore'
When the initrd generator creates a connection with IPv6 method
'ignore', the kernel will do IPv6 autoconfiguration on the
interface. However, it is preferable to let NetworkManager configure
the interface directly instead of relying on kernel. Therefore, change
the IPv6 method to 'auto'. Note that we still set ipv6.may-fail to
'yes' so that a failure during IPv6 autoconfiguration doesn't bring
down the interface.

(cherry picked from commit f6d654b18f)
2020-06-24 14:54:49 +02:00
Thomas Haller
254528acb6
core: use nm_utils_strsplit_quoted() for splitting the kernel command line
The kernel command line supports escaping and quoting (at least,
according to systemd's parser, which is our example to follow).

Use nm_utils_strsplit_quoted() which supports that.

(cherry picked from commit 27041e9f05)
2020-06-24 09:02:17 +02:00
Beniamino Galvani
3951396de7 settings: fix assertion when updating default wired connection
The connection is expected to have the NM_GENERATED flag, since it has
a default wired device.

Fixes: d35d3c468a ('settings: rework tracking settings connections and settings plugins')

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/471
(cherry picked from commit 4aefad5673)
2020-06-22 09:55:04 +02:00
Beniamino Galvani
b1e00a5805 ifcfg-rh: fix memory leak reading tc filters
Fixes: 902bbfdb18 ('ifcfg-rh: add tc support')
(cherry picked from commit 88e8f2829e)
2020-06-18 17:53:21 +02:00
Beniamino Galvani
5e5f7574b4 supplicant: fix memory leak
Fixes: b83f07916a ('supplicant: large rework of wpa_supplicant handling')
(cherry picked from commit e12d32bf56)
2020-06-18 17:53:19 +02:00
Sayed Shah
be822b52e6
all: reformat python files with python black
Part of !537.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/merge_requests/537
2020-06-15 16:40:38 +02:00
Thomas Haller
d0ce1eb351
lldp: omit empty "object-id" for LLDP management address
It seems common that the object-id might be empty. Omit the
field in that case.
2020-06-15 15:05:25 +02:00
Thomas Haller
dc08b42f45
lldp: expose "mud-url" LLDP attribute for the MUD usage description
See-also: https://github.com/systemd/systemd/pull/15234
See-also: c4f8796bf8/tests/lldp_mudurl.pcap
2020-06-15 15:05:22 +02:00
Thomas Haller
4043f82790
lldp: cleanup converting binary LLDP fields to string
Introduce and use format_string() helper to convert the binary fields
to string.

This is like systemd's parse_string() function.
2020-06-15 15:02:53 +02:00
Beniamino Galvani
6e02622f57 Revert "manager: change autoconnect-slaves logic for already active slaves"
The commit breaks many nmstate CI tests. It also breaks the
autoconnect-slaves functionality: if the master gets reactivated and
the slave was active, the slave is not reconnected.

A different solution is needed for the original issue.

This reverts commit 024e983c8e.
2020-06-15 09:51:25 +02:00
Thomas Haller
0ba9aff4bc
Revert "IPv6 SLAAC: Clamp received PIO and RIO Lifetime Values"
This reverts commit 0cbd9193cd.
This reverts commit a5290915d5.

(cherry picked from commit ad5fdd9d62)
2020-06-15 08:00:54 +02:00
Thomas Haller
8b7f0c4606
Revert "IPv6 SLAAC: Honor small PIO Valid Lifetimes"
This reverts commit 2da092b592.

(cherry picked from commit a88be01da2)
2020-06-15 07:59:50 +02:00
Thomas Haller
ecf32c2c8f
systemd: merge branch systemd into master 2020-06-13 17:08:22 +02:00
Thomas Haller
bbf57b114e
systemd: update code from upstream (2020-06-13)
This is a direct dump from systemd git.

======

SYSTEMD_DIR=../systemd
COMMIT=6d0f38017c7476883103080372505d4811112346

(
  cd "$SYSTEMD_DIR"
  git checkout "$COMMIT"
  git reset --hard
  git clean -fdx
)

git ls-files -z :/src/systemd/src/ \
                :/shared/systemd/src/ \
                :/shared/nm-std-aux/unaligned.h | \
  xargs -0 rm -f

nm_copy_sd_shared() {
    mkdir -p "./shared/systemd/$(dirname "$1")"
    cp "$SYSTEMD_DIR/$1" "./shared/systemd/$1"
}

nm_copy_sd_core() {
    mkdir -p "./src/systemd/$(dirname "$1")"
    cp "$SYSTEMD_DIR/$1" "./src/systemd/$1"
}

nm_copy_sd_stdaux() {
    mkdir -p "./shared/nm-std-aux/"
    cp "$SYSTEMD_DIR/$1" "./shared/nm-std-aux/${1##*/}"
}

nm_copy_sd_core "src/libsystemd-network/arp-util.c"
nm_copy_sd_core "src/libsystemd-network/arp-util.h"
nm_copy_sd_core "src/libsystemd-network/dhcp-identifier.c"
nm_copy_sd_core "src/libsystemd-network/dhcp-identifier.h"
nm_copy_sd_core "src/libsystemd-network/dhcp-internal.h"
nm_copy_sd_core "src/libsystemd-network/dhcp-lease-internal.h"
nm_copy_sd_core "src/libsystemd-network/dhcp-network.c"
nm_copy_sd_core "src/libsystemd-network/dhcp-option.c"
nm_copy_sd_core "src/libsystemd-network/dhcp-packet.c"
nm_copy_sd_core "src/libsystemd-network/dhcp-protocol.h"
nm_copy_sd_core "src/libsystemd-network/dhcp6-internal.h"
nm_copy_sd_core "src/libsystemd-network/dhcp6-lease-internal.h"
nm_copy_sd_core "src/libsystemd-network/dhcp6-network.c"
nm_copy_sd_core "src/libsystemd-network/dhcp6-option.c"
nm_copy_sd_core "src/libsystemd-network/dhcp6-protocol.h"
nm_copy_sd_core "src/libsystemd-network/lldp-internal.h"
nm_copy_sd_core "src/libsystemd-network/lldp-neighbor.c"
nm_copy_sd_core "src/libsystemd-network/lldp-neighbor.h"
nm_copy_sd_core "src/libsystemd-network/lldp-network.c"
nm_copy_sd_core "src/libsystemd-network/lldp-network.h"
nm_copy_sd_core "src/libsystemd-network/network-internal.c"
nm_copy_sd_core "src/libsystemd-network/network-internal.h"
nm_copy_sd_core "src/libsystemd-network/sd-dhcp-client.c"
nm_copy_sd_core "src/libsystemd-network/sd-dhcp-lease.c"
nm_copy_sd_core "src/libsystemd-network/sd-dhcp6-client.c"
nm_copy_sd_core "src/libsystemd-network/sd-dhcp6-lease.c"
nm_copy_sd_core "src/libsystemd-network/sd-ipv4acd.c"
nm_copy_sd_core "src/libsystemd-network/sd-ipv4ll.c"
nm_copy_sd_core "src/libsystemd-network/sd-lldp.c"
nm_copy_sd_core "src/libsystemd/sd-event/event-source.h"
nm_copy_sd_core "src/libsystemd/sd-event/event-util.c"
nm_copy_sd_core "src/libsystemd/sd-event/event-util.h"
nm_copy_sd_core "src/libsystemd/sd-event/sd-event.c"
nm_copy_sd_core "src/libsystemd/sd-id128/id128-util.c"
nm_copy_sd_core "src/libsystemd/sd-id128/id128-util.h"
nm_copy_sd_core "src/libsystemd/sd-id128/sd-id128.c"
nm_copy_sd_core "src/systemd/_sd-common.h"
nm_copy_sd_core "src/systemd/sd-dhcp-client.h"
nm_copy_sd_core "src/systemd/sd-dhcp-lease.h"
nm_copy_sd_core "src/systemd/sd-dhcp-option.h"
nm_copy_sd_core "src/systemd/sd-dhcp6-client.h"
nm_copy_sd_core "src/systemd/sd-dhcp6-lease.h"
nm_copy_sd_core "src/systemd/sd-dhcp6-option.h"
nm_copy_sd_core "src/systemd/sd-event.h"
nm_copy_sd_core "src/systemd/sd-id128.h"
nm_copy_sd_core "src/systemd/sd-ipv4acd.h"
nm_copy_sd_core "src/systemd/sd-ipv4ll.h"
nm_copy_sd_core "src/systemd/sd-lldp.h"
nm_copy_sd_core "src/systemd/sd-ndisc.h"
nm_copy_sd_shared "src/basic/alloc-util.c"
nm_copy_sd_shared "src/basic/alloc-util.h"
nm_copy_sd_shared "src/basic/async.h"
nm_copy_sd_shared "src/basic/cgroup-util.h"
nm_copy_sd_shared "src/basic/env-file.c"
nm_copy_sd_shared "src/basic/env-file.h"
nm_copy_sd_shared "src/basic/env-util.c"
nm_copy_sd_shared "src/basic/env-util.h"
nm_copy_sd_shared "src/basic/errno-util.h"
nm_copy_sd_shared "src/basic/escape.c"
nm_copy_sd_shared "src/basic/escape.h"
nm_copy_sd_shared "src/basic/ether-addr-util.c"
nm_copy_sd_shared "src/basic/ether-addr-util.h"
nm_copy_sd_shared "src/basic/extract-word.c"
nm_copy_sd_shared "src/basic/extract-word.h"
nm_copy_sd_shared "src/basic/fd-util.c"
nm_copy_sd_shared "src/basic/fd-util.h"
nm_copy_sd_shared "src/basic/fileio.c"
nm_copy_sd_shared "src/basic/fileio.h"
nm_copy_sd_shared "src/basic/format-util.c"
nm_copy_sd_shared "src/basic/format-util.h"
nm_copy_sd_shared "src/basic/fs-util.c"
nm_copy_sd_shared "src/basic/fs-util.h"
nm_copy_sd_shared "src/basic/hash-funcs.c"
nm_copy_sd_shared "src/basic/hash-funcs.h"
nm_copy_sd_shared "src/basic/hashmap.c"
nm_copy_sd_shared "src/basic/hashmap.h"
nm_copy_sd_shared "src/basic/hexdecoct.c"
nm_copy_sd_shared "src/basic/hexdecoct.h"
nm_copy_sd_shared "src/basic/hostname-util.c"
nm_copy_sd_shared "src/basic/hostname-util.h"
nm_copy_sd_shared "src/basic/in-addr-util.c"
nm_copy_sd_shared "src/basic/in-addr-util.h"
nm_copy_sd_shared "src/basic/io-util.c"
nm_copy_sd_shared "src/basic/io-util.h"
nm_copy_sd_shared "src/basic/list.h"
nm_copy_sd_shared "src/basic/log.h"
nm_copy_sd_shared "src/basic/macro.h"
nm_copy_sd_shared "src/basic/memory-util.c"
nm_copy_sd_shared "src/basic/memory-util.h"
nm_copy_sd_shared "src/basic/mempool.c"
nm_copy_sd_shared "src/basic/mempool.h"
nm_copy_sd_shared "src/basic/missing_fcntl.h"
nm_copy_sd_shared "src/basic/missing_random.h"
nm_copy_sd_shared "src/basic/missing_socket.h"
nm_copy_sd_shared "src/basic/missing_stat.h"
nm_copy_sd_shared "src/basic/missing_syscall.h"
nm_copy_sd_shared "src/basic/missing_type.h"
nm_copy_sd_shared "src/basic/parse-util.c"
nm_copy_sd_shared "src/basic/parse-util.h"
nm_copy_sd_shared "src/basic/path-util.c"
nm_copy_sd_shared "src/basic/path-util.h"
nm_copy_sd_shared "src/basic/prioq.c"
nm_copy_sd_shared "src/basic/prioq.h"
nm_copy_sd_shared "src/basic/process-util.c"
nm_copy_sd_shared "src/basic/process-util.h"
nm_copy_sd_shared "src/basic/random-util.c"
nm_copy_sd_shared "src/basic/random-util.h"
nm_copy_sd_shared "src/basic/set.h"
nm_copy_sd_shared "src/basic/signal-util.c"
nm_copy_sd_shared "src/basic/signal-util.h"
nm_copy_sd_shared "src/basic/siphash24.h"
nm_copy_sd_shared "src/basic/socket-util.c"
nm_copy_sd_shared "src/basic/socket-util.h"
nm_copy_sd_shared "src/basic/sort-util.h"
nm_copy_sd_shared "src/basic/sparse-endian.h"
nm_copy_sd_shared "src/basic/stat-util.c"
nm_copy_sd_shared "src/basic/stat-util.h"
nm_copy_sd_shared "src/basic/stdio-util.h"
nm_copy_sd_shared "src/basic/string-table.c"
nm_copy_sd_shared "src/basic/string-table.h"
nm_copy_sd_shared "src/basic/string-util.c"
nm_copy_sd_shared "src/basic/string-util.h"
nm_copy_sd_shared "src/basic/strv.c"
nm_copy_sd_shared "src/basic/strv.h"
nm_copy_sd_shared "src/basic/strxcpyx.c"
nm_copy_sd_shared "src/basic/strxcpyx.h"
nm_copy_sd_shared "src/basic/time-util.c"
nm_copy_sd_shared "src/basic/time-util.h"
nm_copy_sd_shared "src/basic/tmpfile-util.c"
nm_copy_sd_shared "src/basic/tmpfile-util.h"
nm_copy_sd_shared "src/basic/umask-util.h"
nm_copy_sd_shared "src/basic/user-util.h"
nm_copy_sd_shared "src/basic/utf8.c"
nm_copy_sd_shared "src/basic/utf8.h"
nm_copy_sd_shared "src/basic/util.c"
nm_copy_sd_shared "src/basic/util.h"
nm_copy_sd_shared "src/shared/dns-domain.c"
nm_copy_sd_shared "src/shared/dns-domain.h"
nm_copy_sd_shared "src/shared/web-util.c"
nm_copy_sd_shared "src/shared/web-util.h"
nm_copy_sd_stdaux "src/basic/unaligned.h"
2020-06-13 15:38:01 +02:00
Beniamino Galvani
d90c7b70f3 device: honor the match.path property 2020-06-12 16:04:06 +02:00
Beniamino Galvani
808e837149 all: add "path" property to the match setting
Add a new "path" property to the match setting, which can be used to
restrict a connection to devices with a given hardware path. The new
property is a list of patterns that are matched against the ID_PATH
udev property of devices.

ID_PATH represents the topological persistent path of a device and
typically contains a subsystem string (pci, usb, platform, etc.) and a
subsystem-specific identifier. Some examples of paths are:

 pci-0000:00:02.0
 pci-0000:00:14.0-usb-0:5:1.0
 platform-1c40000.ethernet

systemd-networkd also has a "Path=" option to match a device by udev
ID_PATH.
2020-06-12 16:04:06 +02:00
Beniamino Galvani
d13ca45ca2 all: add device.path property
Add a device property to expose its path as reported in the ID_PATH
udev property.
2020-06-12 16:04:06 +02:00
Beniamino Galvani
755e894b91 platform: add nm_platform_link_get_path()
Add a function to obtain the link path as exported by the ID_PATH udev
property.
2020-06-12 16:04:06 +02:00
Beniamino Galvani
3d9e2650c1 platform: rework nm_platform_link_get_unmanaged()
Split out the code to get udev properties. It will be reused in the next
commit.
2020-06-12 16:04:06 +02:00
Beniamino Galvani
2f21a52eeb platform: rework nm_platform_link_get_udi()
Implement the function directly in nm-platform.c without virtual
functions.
2020-06-12 16:04:05 +02:00
Thomas Haller
0bc6f6a197
lldp: accept all chassis-id/port-id types and support network-address
Do what systemd does with sd_lldp_neighbor_get_chassis_id_as_string()
and sd_lldp_neighbor_get_port_id_as_string(). Maybe we should use the
systemd functions directly, however that is not done because the way
how we convert the values to string is part of our stable API. Let's not
rely on systemd for that.

Also, support SD_LLDP_CHASSIS_SUBTYPE_NETWORK_ADDRESS and SD_LLDP_PORT_SUBTYPE_NETWORK_ADDRESS
types. Use the same formatting scheme as systemd ([1]) and lldpd ([2]).

[1] a07e962549/src/libsystemd-network/lldp-neighbor.c (L422)
[2] d21599d2e6/src/lib/atoms/chassis.c (L125)

Also, in case we don't support the type or the type contains unexpected
data, fallback to still expose the LLDP neighbor, and convert the value
to a hex string (like systemd does). This means, lldp_neighbor_new()
in practice can no longer fail and the error handling for that can be
dropped.

There is one tiny problem: now as fallback we expose the
chassis-id/port-id as hex string. That means, if we in the future
recognize a new type, we will have to change API for those types.
The alternative would be to either hide the neighbor completely from the
D-Bus API (as previously done), or not expose the hex strings on D-Bus.
Neither seems very attractive, so expose the value (and reserve the
right to change API in the future).
2020-06-11 16:51:50 +02:00
Thomas Haller
58f738fa3b
lldp: use full chassis-id/port-id as ID for LLDP neighbor
For the ID of LLDP neighbors follow what systemd does (w.r.t. what it
consideres equality of two neighbors).

Note that previously we did almost the same thing. Except, we compared
priv->chassis_id and priv->port_id, but these values are string
representations of the original (binary value). Don't use the pretty
strings as ID but the original binary value.
2020-06-11 16:51:50 +02:00
Thomas Haller
bf3bd1cff1
lldp: parse destination-address on demand
An invalid destination address doesn't need to break the LLDL neighbor entirely.
In fact, systemd will already filter out such addresses. So in practice,
the neighbor always has a valid destination address.

There is thus no need to parse it already during lldp_neighbor_new().
2020-06-11 16:51:50 +02:00
Thomas Haller
e7955f577e
lldp: use nm_utils_ether_addr_equal() instead of re-implementation 2020-06-11 16:51:50 +02:00
Thomas Haller
0d41abea2e
lldp: only have GHashTable instance for LLDP neighbors when running
When the instance is not running (after creation or after stop), there
is no need to keep the GHashTable around.

Create it when needed (during start) and clear it during stop. This
makes it slightly cheaper to keep a NMLldpListener instance around,
if it's currently not running.

NMDevice already keeps the NMLldpListener around, even after stopping
it. It's not clear whether the instance will be started again, so also
clear the GHashTable. Also, one effect is that if you initially were in
a network with many LLDP neibors, after stop and start, the GHashTable
now gets recreated and may not need to allocate a large internal array
as before.
2020-06-11 16:51:50 +02:00
Thomas Haller
a7aa2a5e01
lldp: delay change notification for LLDP neighbor events
We already rate limit change events by two seconds. When we notice
that something changed, we call data_changed_schedule().

Previously, that would immediately issue the change notification,
if ratelimiting currently was not in effect. That means, if we happen
go receive two LLDP neighbor events in short succession, then the
first one will trigger the change notification right away, while
the second will be rate limited.

Avoid that by always issue scheduling the change notification in
the background. And if we currently are not rate limited, with
an idle handler with low priority.
2020-06-11 16:51:50 +02:00
Thomas Haller
d2313bef5e
lldp: change order of dictionary fields for LLDP neighbor variant
This changes the order to what the code did previously, before switching
from GVariantDict to GVariantBuilder. But it changes the actually
serialized order in the variant.
2020-06-11 16:51:50 +02:00
Thomas Haller
ae0da6dd60
lldp: use GVariantBuilder instead of GVariantDict
GVariantDict is basically a GHashTable, and during g_variant_dict_end()
it uses a GVariantBuilder to create the variant.

This is totally unnecessary in this case. It's probably unnecessary in
most use cases, because commonly we construct variants in a determined series
of steps and don't need to add/remove keys.

Aside the overhead, GHashTable also does not give a stable sort order,
which seems a pretty bad property in this case.

Note that the code changes the order in which we call
g_variant_builder_add() for the fields in code, to preserve the previous
order that GVariantDict actually created (at least, with my version of
glib).
2020-06-11 16:51:50 +02:00
Thomas Haller
cf4763207f
lldp: add LLDP attributes to GVariant builder without intermediate parsing (2) 2020-06-11 16:51:49 +02:00
Thomas Haller
4aa0b9180a
lldp: add LLDP attributes to GVariant builder without intermediate parsing (1)
The intermediate parsing step serves very little purpose.

The only use is to ensure that we always add the keys in a stable
order, but we can easily ensure that otherwise.
2020-06-11 16:51:49 +02:00
Thomas Haller
94ee6f4fe1
lldp: use nm_g_variant_builder_add_sv*() helpers in "nm-lldp-listener.c" 2020-06-11 16:51:49 +02:00
Thomas Haller
5e6e361c21
lldp: no longer keep parsed attributes in LldpNeighbor
We only need to parse them to construct the GVariant. There is
no need to keep them around otherwise.

We still keep LldpAttrs array and don't construct the GVariant right
away. The benefit is that this way while parsing we set the array
fields, and afterwards, when we generate the string dictionary, the
keys are sorted.
2020-06-11 16:51:49 +02:00