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If "keep" policy is specified, and the interface has a name that is
NET_NAME_USER or NET_NAME_RENAMED, we stop processing rules. "keep" should
probably be specified either first or last depending on the preference.
This partially reimplements 55b6530baa, in the
sense that if the "keep" policy is not specified, and if the interface has
a NamingPolicy, it will be renamed, even if it had a name previously.
So this breaks backwards compatibility in this case, but that's more in line
with what users expect.
Closes#9006.
What policy we dicide to use it rather important, but this bit of information
wasn't logged. Let's always do that.
The code was also written in a confusing way, which probably contributed to the
unintended effects of 55b6530baa and other commits.
We would loop over all policies, and note if "kernel" was specified, and then
possibly unset the result at the end. Let's immediately log the result and cut
to the end if we can figure out the answer.
No functional change intended, except for the new log lines.
Using goto is not very elegant, but we can't use break because of the switch,
and there are multiple conditions to break the loop, so using goto is cleanest.
This reverts commit 55b6530baa.
This commit description says "Always rename an interface to its name specified
in config if no NamePolicy= is specified", but it does much more:
1. It completely changes the meaning of NamePolicy=kernel. Before, it meant that an interface
with type==NAMEPOLICY_KERNEL would not be renamed. After, the kernel name only works as
a fallback, if no policy matches.
2. The "if no NamePolicy= is specified" part is not true at all, the interface will be renamed
according to the specified NamePolicy=.
After 55b6530baa, the should_rename() function is named very misleadingly: it is only used
to mean "respect kernel predictable name if no naming policy matches".
Let's revert, and start with a clean slate. This fixes#11436.
c4397d94c3 introduces
link_detach_from_manager() and netdev_detach_from_manager(), and they
set Link::manager or NetDev::manager NULL.
But, at the time e.g. link is removed, hence link_drop() is called,
there may be still some asynchronous netlink call is waiting, and
their callbacks hit assertion.
This make {link,netdev}_detach_from_manager() just drop all references
from manager, but keep the pointer to manager.
Fixes#11411.
Updating due to phrase "Defaults to DefaultTimeoutStartSec= from the manager configuration file, except when Type=oneshot is used, in which case the timeout is disabled by default (see systemd-system.conf)" from [0] https://github.com/systemd/systemd/blob/master/man/systemd.service.xml
Before:
IMPORT builtin 'hwdb' fails: No such file or directory
After:
IMPORT builtin 'hwdb' fails: No data available
Previous log is confusing and may be understood as hwdb file not exist.
Found by inspecting results of running this small program:
int main(int argc, const char **argv) {
for (int i = 1; i < argc; i++) {
FILE *f;
char line[1024], prev[1024], *r;
int lineno;
prev[0] = '\0';
lineno = 1;
f = fopen(argv[i], "r");
if (!f)
exit(1);
do {
r = fgets(line, sizeof(line), f);
if (!r)
break;
if (strcmp(line, prev) == 0)
printf("%s:%d: error: dup %s", argv[i], lineno, line);
lineno++;
strcpy(prev, line);
} while (!feof(f));
fclose(f);
}
}
By b1c097af8d (#10239), the receive buffer
size for uevents was set by SO_RCVBUF at first, and fallback to
use SO_RCVBUFFORCE. So, as SO_RCVBUF limits to the buffer size
net.core.rmem_max, which is usually much smaller than 128MB udevd requests,
uevents buffer size was not sufficient.
This fixes the ordering of the request: SO_RCVBUFFORCE first, and
fallback to SO_RCVBUF. Then, udevd's uevent buffer size can be set to
128MB.
This also revert 903893237a.
Fixes#11314 and #10754.
