There's no point in calling setpgid() on short-lived processes, so
remove the setpgid() calls when spawning dispatcher scripts, iptables,
iscsiadmin, and netconf.
Replace the pthread_sigwait()-based signal handling with
g_unix_signal_add()-based handling, and get rid of all the
now-unnecessary calls to nm_unblock_posix_signals() when spawning
subprocesses.
As a bonus, this also fixes the "^C in gdb kills NM too" bug.
Custom IP ranges for shared connection were implemeted in bgo #6759732
(commit 32a001f526). The first IP address
is used and a range is calculated.
However, the commit missed to update ifcfg-rh plugin to read the address.
Test case:
* use ifcfg-rh plugin for NetworkManager
$ nmcli con add type eth con-name shared-ip ifname eth0
$ nmcli con mod shared-ip ipv4.addresses 9.8.7.6/24 ipv4.method shared
$ nmcli con show shared-ip
$ nmcli con show shared-ip <--- ip address 9.8.7.6 was missing
https://bugzilla.redhat.com/show_bug.cgi?id=1174632
This was not really an error, because NMIfcfgConnection would not
watch the files if monitoring is not enabled. Still do it, because
it feels more correct.
Make update_connection() analogous to keyfiles implementation.
Effectively merge _internal_new_connection() and update_connection()
-- previously connection_new_or_changed().
https://bugzilla.redhat.com/show_bug.cgi?id=1171751
Presort the files in read_connections() as we do it
for keyfile.
This alone has not much consequences. Do this patch first, to
keep the next patches more self-contained.
The ifcfg-rh implementation should be similar to the one from keyfile.
Rename the variables and function that have the same meaning.
Do this trivial commit first, before starting refactoring.
When adding a connection to NMSettings we did not check for
duplicate connection UUIDs (which could for example happen
if two different plugins report a conflicting UUID).
Also, we would not check that an already added connection
changes it's UUID.
Both could lead to have duplicate connections (by UUID).
Avoid that two ways:
- when adding a connection to NMSettings, ensure that we don't add
a conflicting UUID. Otherwise just bail out and do nothing.
- when modifying a connection that is already added to NMSettings,
enforce that the UUID cannot change. Otherwise fail with error.
For ifcfg-rh plugin this situation still can happen during reload.
In this case error out and refuse to update the connection. After
all, the user configured invalid UUIDs.
https://bugzilla.redhat.com/show_bug.cgi?id=1171751
Also during add_connection() we must take special care of not "adding" a
connection with a conflicting UUID. In that case we want to fallback to
"update".
update_connection() already does all the checks, so call
update_connection() from add_connection().
If there are keyfiles with duplicate UUIDs, read_connections()
would iterate over the files, loading them as they appear and
overwriting duplicate connections that were just loaded.
For example, have keyfiles 'A' and 'B' with the same UUID.
On start, NM might first load 'A', then 'B'. 'B' would replace the
content of 'A' which was just loaded.
On reload, NM would first overwrite 'B' with 'A', and then again
overwriting 'A' with 'B'.
Fix that by accept the first found connection and don't overwrite
it during the same read_connections() run.
Also sort the files by file modification timestamp so that we
get a reproducible and sensible behavior.
new_connection() and update_connection() are very similar as both
must anticipate collisions of UUIDs.
When reloading a connection (update_connection(), previously), the loaded
connection for a certain path might actually replace another existing
connection. In this case, the old connection must be removed, and
the existing one updated instead.
If reloading a connection changes the UUID to a new value, the old
connection must be removed likewise and a new connection added.
Merge both functions into update_connection().
Only log connection diffs when we update a connection that we actually
care about.
Note that most plugin specific connections use
nm_settings_connection_replace_settings() in their constructor
to initialize themselves. These occurrences are not interesting
and spam the logfile.
conn_name can be NULL now as the connections are tracked by UUID
(see commit 689dadaffb)
Sep 29 21:20:34 Jdeapad NetworkManager[1339]: <info> getting unmanaged specs...
Sep 29 21:20:34 Jdeapad NetworkManager[1339]: <info> Checking unmanaged: (null)
Sep 29 21:20:38 Jdeapad kernel: NetworkManager[1339]: segfault at 0 ip
00007f1bfffbedd0 sp 00007fff98daa628 error 4 in
libglib-2.0.so.0.4002.0[7f1bfff86000+130000]
https://bugzilla.gnome.org/show_bug.cgi?id=737645
If a connection has an associated "rule-NAME" or "rule6-NAME" file,
don't try to read in the routes, since NetworkManager won't be able to
parse them correctly. Instead, log a warning that they will need to be
applied via a dispatcher script, and provide a script that would do
that in examples/dispatcher/.
Add a "filename" property to NMSettingsConnection, and set it from
keyfile and ifcfg-rh (replacing the existing priv->path variables in
those connection types). (The other plugins either don't use files, or
don't use per-connection files.)
If an ifcfg file has a DEVTIMEOUT property (and a DEVICE, and is
ONBOOT=yes), and the device is not present at startup, then wait up to
DEVTIMEOUT seconds for it to appear before declaring the connection
ready.
This allows for a hacky workaround to devices that take a bizarrely
long time to be probed.
No need to allocate a temporary "base" variable. Just
search for the last '/' ourselves.
All the special handling that g_path_get_basename() does,
for example handling empty filenames and removing trailing
slashes, is not needed.
Thereby fix not to return empty names such as from "ifcfg-".
This reverts commit 35988ec633.
Since commit ffe0fde235,
wireless_connection_from_ifcfg() accepts a missing @error argument.
Revert this commit because the caller then can control whether to
log the error by providing @error.
wireless_connection_from_ifcfg() did not support being called without
error argument.
#0 0x00007fe4fa2204e9 in g_logv (log_domain=0x7fe4f0597060 "NetworkManager-ifcfg-rh", log_level=G_LOG_LEVEL_CRITICAL, format=<optimized out>, args=args@entry=0x7fff1c7aaf00) at gmessages.c:989
#1 0x00007fe4fa22063f in g_log (log_domain=<optimized out>, log_level=<optimized out>, format=<optimized out>) at gmessages.c:1025
#2 0x00007fe4f057eec3 in wireless_connection_from_ifcfg (file=0x7fe4fec7c800 "/etc/sysconfig/network-scripts/ifcfg-Wi-Fi-1", ifcfg=0x7fe4fec6f730, error=0x0) at reader.c:3431
#3 0x00007fe4f057e2b6 in connection_from_file_full (filename=0x7fe4fec7c800 "/etc/sysconfig/network-scripts/ifcfg-Wi-Fi-1", network_file=0x7fe4f05976aa "/etc/sysconfig/network", test_type=0x0, out_unhandled=0x7fff1c7ab1f8,
error=0x0, out_ignore_error=0x7fff1c7ab174) at reader.c:4750
#4 0x00007fe4f057db80 in connection_from_file (filename=0x7fe4fec7c800 "/etc/sysconfig/network-scripts/ifcfg-Wi-Fi-1", out_unhandled=0x7fff1c7ab1f8, error=0x0) at reader.c:4834
#5 0x00007fe4f057b4a6 in nm_ifcfg_connection_new (source=0x0, full_path=0x7fe4fec7c800 "/etc/sysconfig/network-scripts/ifcfg-Wi-Fi-1", error=0x0) at nm-ifcfg-connection.c:119
#6 0x00007fe4f0579c1d in _internal_new_connection (self=0x7fe4fec6cd00, path=0x7fe4fec7c800 "/etc/sysconfig/network-scripts/ifcfg-Wi-Fi-1", source=0x0, error=0x0) at plugin.c:136
#7 0x00007fe4f0579256 in connection_new_or_changed (self=0x7fe4fec6cd00, path=0x7fe4fec7c800 "/etc/sysconfig/network-scripts/ifcfg-Wi-Fi-1", existing=0x0, out_old_path=0x7fff1c7ab458) at plugin.c:265
#8 0x00007fe4f0578f61 in read_connections (plugin=0x7fe4fec6cd00) at plugin.c:462
#9 0x00007fe4f0578839 in get_connections (config=0x7fe4fec6cd00) at plugin.c:497
#10 0x00007fe4fdc9affb in nm_system_config_interface_get_connections (config=0x7fe4fec6cd00) at settings/nm-system-config-interface.c:143
#11 0x00007fe4fdc9764f in load_connections (self=0x7fe4fec6ca40) at settings/nm-settings.c:201
#12 0x00007fe4fdc96d74 in nm_settings_new (error=0x7fff1c7abb18) at settings/nm-settings.c:1802
#13 0x00007fe4fdc37146 in main (argc=1, argv=0x7fff1c7abcd8) at main.c:415
Fixes: 356849f70c
Fixes: 12bfaf5a8d
The out_keyfile, out_routefile, and out_route6file args were just
based on trivial calls to utils.h functions, and could just as easily
be done by the caller directly. So do that.
Don't pass &keyfile, &routefile, and &route6file if we aren't going to
use the return value.
Don't pass &unmanaged if we aren't going to check it. (And when we do
check it, don't g_free() it if we've asserted that it's NULL.)
Instead of having connection_from_file() return a flag telling its
caller whether to log a warning or not, just have it log the warning
(or not) itself.
Rather than having the "real" users of connection_from_file() have to
pass a dozen NULL arguments, add a separate
connection_from_file_test() for use by test-ifcfg-rh. (Likewise, since
no test cases care about ignore_error, remove that argument from
connection_from_file_test().)
Error: CHECKED_RETURN (CWE-252): [#def21]
NetworkManager-0.9.11.0/src/settings/plugins/ifcfg-rh/plugin.c:676: check_return: Calling "stat("/etc/hostname", &file_stat)" without checking return value. This library function may fail and return an error code. [Note: The source code implementation of the function has been overridden by a builtin model.]
In several cases, connection uuids are generated based on
some strings. Change the algorithm, to prefix the hashed
identifier differently for each setting type. This makes
collisions very unlikely.
Also, change the algorithm, to create proper Variant3 UUIDs.
This is a behavioral change, but it only affects code places
that were added since nm-0-9-10 and were not yet part of
a stable release.
There are different types (variants) of UUIDs defined.
Especially variants 3 and 5 are name based variants (rfc4122).
The way we create our UUIDs in nm_utils_uuid_generate_from_string()
however does not create them according to RFC and does not set
the flags to indicate the variant.
Modify the signature of nm_utils_uuid_generate_from_string() to accept
a "uuid_type" argument, so that we later can add other algorithms without
breaking API.
