[Bug 2095518] [NEW] dracut-install does not install compressed wildcard blobs

[You-Sheng Yang]

Public bug reported:

Take kernel module intel-ish-ipc for example, it has two firmware
declarations:

```
$ modinfo intel-ish-ipc | grep ^firmware
firmware: intel/ish/ish_*.bin
firmware: intel/ish/ish_lnlm.bin
```

And with additional custom ISH firmware installed from bug 2094768,
update-initramefs gives:

```
$ update-initramefs -v -u -k $(uname -r)
...
dracut-install: Missing firmware intel/ish/ish_*.bin for kernel module intel_ish_ipc
dracut-install: mkdir '/var/tmp/mkinitramfs_9uk7FI/lib/firmware/intel/ish'
dracut-install: cp '/lib/firmware/intel/ish/ish_lnlm_39ceeaf8_58.7724.2.bin.zst' '/var/tmp/mkinitramfs_9uk7FI/lib/firmware/intel/ish/ish_lnlm_39ceeaf8_58.7724.2.bin.zst'
dracut-install: ln -s 'ish_lnlm_39ceeaf8_58.7724.2.bin.zst' '/var/tmp/mkinitramfs_9uk7FI/lib/firmware/intel/ish/ish_lnlm.bin.zst'
...

```

In source code for /usr/lib/dracut/dracut-install, that is, source
package dracut, file src/install/dracut-install.c, function
install_firmware, it tries to invoke `glob()` with full path expanded
from "intel/ish/ish_*.bin", but while all the binaries were compressed,
this matches no file and none of the custom ISH firmware blobs will be
installed.

** Affects: dracut (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2095518

Title:
  dracut-install does not install compressed wildcard blobs

Status in dracut package in Ubuntu:
  New

Bug description:
  Take kernel module intel-ish-ipc for example, it has two firmware
  declarations:

  ```
  $ modinfo intel-ish-ipc | grep ^firmware
  firmware: intel/ish/ish_*.bin
  firmware: intel/ish/ish_lnlm.bin
  ```

  And with additional custom ISH firmware installed from bug 2094768,
  update-initramefs gives:

  ```
  $ update-initramefs -v -u -k $(uname -r)
  ...
  dracut-install: Missing firmware intel/ish/ish_*.bin for kernel module intel_ish_ipc
  dracut-install: mkdir '/var/tmp/mkinitramfs_9uk7FI/lib/firmware/intel/ish'
  dracut-install: cp '/lib/firmware/intel/ish/ish_lnlm_39ceeaf8_58.7724.2.bin.zst' '/var/tmp/mkinitramfs_9uk7FI/lib/firmware/intel/ish/ish_lnlm_39ceeaf8_58.7724.2.bin.zst'
  dracut-install: ln -s 'ish_lnlm_39ceeaf8_58.7724.2.bin.zst' '/var/tmp/mkinitramfs_9uk7FI/lib/firmware/intel/ish/ish_lnlm.bin.zst'
  ...

  ```

  In source code for /usr/lib/dracut/dracut-install, that is, source
  package dracut, file src/install/dracut-install.c, function
  install_firmware, it tries to invoke `glob()` with full path expanded
  from "intel/ish/ish_*.bin", but while all the binaries were
  compressed, this matches no file and none of the custom ISH firmware
  blobs will be installed.

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