Re: [PATCH v2] sepolicy: port to dnf4 python API

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On Wed, Nov 22, 2023 at 12:31 PM Petr Lautrbach <lautrbach@xxxxxxxxxx> wrote:
>
> yum module is not available since RHEL 7.
>
> Drop -systemd related code as it's obsoleted these days - only 2
> packages ship their .service in -systemd subpackage
>
> Signed-off-by: Petr Lautrbach <lautrbach@xxxxxxxxxx>
> ---
>
> v2: use with dnf.Base() as base:  suggested by Ondrej Mosnacek <omosnace@xxxxxxxxxx>

For the fix:

Acked-by: Ondrej Mosnacek <omosnace@xxxxxxxxxx>

(I didn't review the full patch, but Jim's v1 ack should still apply
to the rest.)

>
>  python/sepolicy/sepolicy/generate.py | 56 +++++++++++++---------------
>  1 file changed, 25 insertions(+), 31 deletions(-)
>
> diff --git a/python/sepolicy/sepolicy/generate.py b/python/sepolicy/sepolicy/generate.py
> index b6df3e91160b..adf65f27a822 100644
> --- a/python/sepolicy/sepolicy/generate.py
> +++ b/python/sepolicy/sepolicy/generate.py
> @@ -1262,24 +1262,20 @@ allow %s_t %s_t:%s_socket name_%s;
>          return fcfile
>
>      def __extract_rpms(self):
> -        import yum
> -        yb = yum.YumBase()
> -        yb.setCacheDir()
> -
> -        for pkg in yb.rpmdb.searchProvides(self.program):
> -            self.rpms.append(pkg.name)
> -            for fname in pkg.dirlist + pkg.filelist + pkg.ghostlist:
> -                for b in self.DEFAULT_DIRS:
> -                    if b == "/etc":
> -                        continue
> -                    if fname.startswith(b):
> -                        if os.path.isfile(fname):
> -                            self.add_file(fname)
> -                        else:
> -                            self.add_dir(fname)
> +        import dnf
> +
> +        with dnf.Base() as base:
> +            base.read_all_repos()
> +            base.fill_sack(load_system_repo=True)
> +
> +            query = base.sack.query()
>
> -            for bpkg in yb.rpmdb.searchNames([pkg.base_package_name]):
> -                for fname in bpkg.dirlist + bpkg.filelist + bpkg.ghostlist:
> +            pq = query.available()
> +            pq = pq.filter(file=self.program)
> +
> +            for pkg in pq:
> +                self.rpms.append(pkg.name)
> +                for fname in pkg.files:
>                      for b in self.DEFAULT_DIRS:
>                          if b == "/etc":
>                              continue
> @@ -1288,20 +1284,18 @@ allow %s_t %s_t:%s_socket name_%s;
>                                  self.add_file(fname)
>                              else:
>                                  self.add_dir(fname)
> -
> -        # some packages have own systemd subpackage
> -        # tor-systemd for example
> -        binary_name = self.program.split("/")[-1]
> -        for bpkg in yb.rpmdb.searchNames(["%s-systemd" % binary_name]):
> -            for fname in bpkg.filelist + bpkg.ghostlist + bpkg.dirlist:
> -                for b in self.DEFAULT_DIRS:
> -                    if b == "/etc":
> -                        continue
> -                    if fname.startswith(b):
> -                        if os.path.isfile(fname):
> -                            self.add_file(fname)
> -                        else:
> -                            self.add_dir(fname)
> +                sq = query.available()
> +                sq = sq.filter(provides=pkg.source_name)
> +                for bpkg in sq:
> +                    for fname in bpkg.files:
> +                        for b in self.DEFAULT_DIRS:
> +                            if b == "/etc":
> +                                continue
> +                            if fname.startswith(b):
> +                                if os.path.isfile(fname):
> +                                    self.add_file(fname)
> +                                else:
> +                                    self.add_dir(fname)
>
>      def gen_writeable(self):
>          try:
> --
> 2.41.0
>

-- 
Ondrej Mosnacek
Senior Software Engineer, Linux Security - SELinux kernel
Red Hat, Inc.






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