How to check downloaded package on OpenBSD 5.1

openbsdpackage-managementSecurity

Under linux there is a package called "ubuntu-keyring" – it's for checking that the downloaded packages (from the offical repositories) are the ones that are on the server.

How can I do this under OpenBSD? How can I check that the downloaded package (via pkg_add – from the offical repo) is the one that is on the server?

UPDATE:
is rsync good for the job??

Best Answer

OpenBSD packages are not 'signed' at all by default.

If you are using OpenBSD in commercial environment, let your employer to buy release CD. Then you will get OpenBSD release with packages on CD which you can trust :-)

Better way, and if you are using OpenBSD seriously you should have it, is to have a build server. Sync OpenBSD ports from anoncvs - here you trust ssh fingeprint which is publicly announced - then build your own ports and sign them with certificate. With tool `dpb' it should be even much easier.

OpenBSD packages is secondary interest for the project as whole.

Related Solutions

Freebsd – How to apply updates on OpenBSD, NetBSD, and FreeBSD

OpenBSD is binary-centric. You can update the binaries (if any updates/changes are available) by executing pkg_add:

pkg_add -Uu

The OpenBSD team recommends using the packages over building from ports - The OpenBSD packages and ports system

FreeBSD can be updated via packages or ports.

How to check dependencies of a package under OpenBSD

Looks like dependencies are specified in the packing list. You can see the packing list with pkg_info -f.

So, assuming PKG_PATH is already set:

pkg_info -f XYZ | grep '^@depend' | cut -f 3 -d :

should give you the package names.

Prepending $PKG_PATH and appending .tgz to each line should give you a URL that's probably what would be downloaded, e.g. to get bash's dependencies:

PKG_PATH=http://ftp3.usa.openbsd.org/pub/OpenBSD/5.1/packages/amd64/
export PKG_PATH
pkg_info -f bash | grep '@depend' | cut -f 3 -d : | while read package; do
    echo $PKG_PATH$package.tgz
done

prints

http://ftp3.usa.openbsd.org/pub/OpenBSD/5.1/packages/amd64/libiconv-1.14.tgz
http://ftp3.usa.openbsd.org/pub/OpenBSD/5.1/packages/amd64/gettext-0.18.1p1.tgz

Best Answer

Related Solutions

Freebsd – How to apply updates on OpenBSD, NetBSD, and FreeBSD

How to check dependencies of a package under OpenBSD

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