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.
NMIPRoute is used by NMSettingIPConfig, but also
NMIPConfig. In the former case, default routes are (still)
disallowed. But in the NMIPConfig use-case, it can make sense
to expose default routes as NMIPRoute instances.
Relax the restriction on the NMIPRoute API to allow this
future change.
No code actually supports having NMIPRoute instances with
prefix length zero (default routes). Up to now, all such uses
would be a bug.
https://bugzilla.gnome.org/show_bug.cgi?id=739969
Signed-off-by: Thomas Haller <thaller@redhat.com>
config.h should be included from every .c file, and it should be
included before any other include. Fix that.
(As a side effect of how I did this, this also changes us to
consistently use "config.h" rather than <config.h>. To the extent that
it matters [which is not much], quotes are more correct anyway, since
we're talking about a file in our own build tree, not a system
include.)
Make the type return GBytes since most in-tree users want that.
Allow the function to accept many more formats as valid hex, including
bytes delimited by ':' and a leading '0x'.
shvar.c has apparently never stripped trailing whitespace, but
obviously a shell doesn't care. Unfortunately NM does. Strip
trailing whitespace before unescaping, to preserve quoted
whitespace.
https://bugzilla.redhat.com/show_bug.cgi?id=1100336
The gateway is a global property of the IPv4/IPv6 configuration, not
an attribute of any particular address. So represent it as such in the
API; remove the gateway from NMIPAddress, and add it to
NMSettingIPConfig.
Behind the scenes, the gateway is still serialized along with the
first address in NMSettingIPConfig:addresses, and is deserialized from
that if the settings dictionary doesn't contain a 'gateway' key.
Adjust nmcli's interactive mode to prompt for IP addresses and gateway
separately. (Patch partly from Jirka Klimeš.)
NMSettingIP[46]Config let you associate a gateway with each address,
and the writable settings backends record that information. But it
never actually gets used: NMIP4Config and NMIP6Config only ever use
the first gateway, and completely ignore any others. (And in the
common usage of the term, an interface can only have one gateway
anyway.)
So, stop pretending that multiple gateways are meaningful; don't
serialize or deserialize gateways other than the first in the
'addresses' properties, and don't read or write multiple gateway
values either.
Split a base NMSettingIPConfig class out of NMSettingIP4Config and
NMSettingIP6Config, and update things accordingly.
Further simplifications of now-redundant IPv4-vs-IPv6 code are
possible, and should happen in the future.
