User:Pavlix: Difference between revisions

Revision as of 14:21, 27 March 2014

Mail: psimerda AT redhat DOT com, pavlix AT pavlix DOT net

Jabber: pavlix AT pavlix DOT net

IRC Freenode: pavlix (#nm and a couple of other channels)

Phone: +420 775 996 256

Timezone: Europe/Prague (CET), sometimes available through later hours

About

After learning a bit of programming, I was attracted by the networking world. I got from petty Pascal/C++ projects through web development using ugly PHP and later Python, to a freelancing work with most of the projects in server administration, network equipment configuration and a bit of programming. Most people in the business know me from my conference talks and articles.

One of my conference talk brought me an offer from Red Hat, which I joined in May 2012 to work on NetworkManager. I was already a Fedora user and package maintainer at that time. Since August 2013 I'm no longer working as a regular NetworkManager developer (staying an upstream contributor, though). Even before that I tried to put my hands on a number of other projects via bug reports, tests and code. I'm also interested in various network-related standards and especially bugs and bad assumptions in IETF documents.

Wiki resources

Networking – A starting point for information related to networking.
Tools/NetworkManager – NetworkManager information page.

Contributions are welcome.

Packages

Maintainer

aiccu (IPv6 tunneling client)
connman
racoon2
radvd (taken over from Petr Písař)
strongswan

Help with specific features or integration issues welcome.

Co-maintainer

bind
bind10
NetworkManager-ssh
rsync
squid

Upstream contributions

netresolve (author)
dnssec-trigger
- NetworkManager integration scripts (with Tomáš Hozza)
- systemd integration
glibc (name resolution patches)
NetworkManager
- Building on any distribution
- Virtual device support (bridging/bonding, with others)
- Valgrind and code coverage support for tests
- Separate platform interaction module (nm-platform, with Dan Winship)
  - Refactored NetworkManager's bridging/bonding/vlan configuration
  - Refactored NetworkManager's IPv4/IPv6 configuration
- Userspace IPv6 autoconfiguration (nm-rdisc/libndp, with Jiří Pírko)
  - Getting IPv6 autoconf features on par with IPv4
  - Avoiding loads of kernel IPv6 bugs and design flaws
- Runtime (non-persistent) configuration support (with Dan Winship and Dan Williams)
- A lot of bug triaging

Bug tracking/reporting

glibc
- The getaddrinfo() support is very complicated while not giving correct results in many cases.
kernel
- Network configuration is a real pain.
- Kernel IPv6 autoconfiguration is only designed for trivial use cases and is very buggy.
libnl
- Most of the advanced stuff is very buggy.
avahi
- Missing for IPv6 link-local addresses.
- IPv6 disabled by default.
- Problems with duplicates in discovery.

Daily usage

Distributions

Gentoo
Fedora/CentOS
Debian
OpenWRT

Desktop

Gnome 3 – Seeking something more mature and stable
Gnome Terminal
Evolution (for IMAP/SMTP mail) – Seeking something more mature and stable
Empathy/Telepathy (for jabber and IRC) – Seeking something more mature and stable
Evince
Firefox

Development

vim
gcc
make, autotools
gdb
valgrind

Presentation

LaTeX/Beamer

Idea pages

Fedora notes

Fedora tools on Gentoo

emerge -av layman
echo source /var/lib/layman/make.conf > /etc/portage.make.conf
layman -a ixit
mkdir -p /etc/portage/sets
cat > /etc/portage/sets/fedora-packaging <<EOF
dev-util/fedora-packager
dev-util/quilt
EOF
emerge -av @fedora-packaging

Bump a rawhide package to a newer version

In the package git directory:

VERSION=...

fedpkg switch-branch master
rpmdev-bumpspec --new-version=$VERSION *.spec
spectool -g *.spec
fedpkg new-sources `spectool -l *.spec | grep / | sed 's/.*\///'`
fedpkg commit -c
fedpkg push
fedpkg build

Requires patching:

https://fedorahosted.org/rpmdevtools/attachment/ticket/14/new-version.patch

Prepare rawhide to replace branches

Warning: This method discards changes in all branches and should only be used after all of the important changes are incorporated into master. Also, it is only suitable for packages where it's practical to maintain the same version in branches as in rawhide.

BRANCHES="f20 f19"

# Fake-merge all branches into master:
for branch in $BRANCHES; do
    fedpkg switch-branch master
    git merge -s ours $branch
done

# Build a new release
rpmdev-bumpspec
fedpkg commit -c
fedpkg push
fedpkg build

Update branches to match rawhide

Use the above technique to prepare rawhide if branches can't be fast forwarded to rawhide.

BRANCHES="f20 f19"

# Fast-forward all branches to master HEAD:
for branch in $BRANCHES; do
    fedpkg switch-branch $branch
    git merge --ff-only master
    fedpkg push
    fedpkg build --nowait
done

# Switch back to master
fedpkg switch-branch master

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