Because some of the CI tests fail randomly while grepping for the
test success marker, let's be specific of the file format grep will
search to eleminate all failure sources.
This finally allows running the test suite completely in a rootless container:
```
❯ podman run \
--user 0 \
-v /dev:/dev \
-v ./:/dracut \
-it \
quay.io/haraldh/dracut-fedora:33 \
bash -c 'cd /dracut; make DRACUT_NO_XATTR=1 check'
```
New systemd defaults to generating MAC addresses for software devices (whereas
previously they would inherit them from the first enslaved slave).
Sadly, among the things this breaks is our test fixture, where the dhcp servers
are configured to expect a particular MAC address. Disable this for the
affected tests, which are essentially the ones that use bridges and bonds.
The network interfaces appear asynchronously and sometimes just too late,
after we're already halfway throught server-init.sh:
+ ip link set dev eth0 name ens3
Cannot find device "eth0"
+ ip addr add 192.168.50.1/24 dev ens3
Cannot find device "ens3"
+ dhcpd -cf /etc/dhcpd.conf -lf /var/lib/dhcpd/dhcpd.leases ens3 ens5
...
[ 8.040825] e1000 0000:00:03.0 eth0: (PCI:33MHz:32-bit) 52:54:01:12:34:56
[ 8.047105] e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
...
No subnet declaration for ens3 (no IPv4 addresses).
** Ignoring requests on ens3. If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface ens3 is attached. **
Whoopsie. Let's ensure all the interfaces are there before we proceed
fiddling around with them.
If emergency and shutdown-emergency hooks are called, the systemd should
poweroff the testsuite, therefore "rd.shell=0" is given on the test
suite kernel command lines.
"rd.shell=0" has to be parsed correctly by the test suite real root init
also.
By convention, strstr should be a literal string match. Previously, it
would match as a glob pattern. Some code used that, so add new
functions strglob and strglobin to do what that code expects, and
specify them tightly too. strglob tests whether the glob pattern
matches the entire string (the name strglob is also used in the yorick
language, and that's what it does there), while strglobin tests whether
the glob pattern matches anywhere in the string.
Also tightens str_starts, str_ends, and str_replace to deal with
literal strings only. In a quick grep I did not find code that depended
on these functions matching globs.
Changes the call sites where strstr was used with glob patterns to use
strglobin or strglob as the intention seemed to be (or, in one case,
strstr with the * removed as it did not affect the result anyway).
Harald Hoyer