I’ve been a DragonFly BSD committer since mid 2009, and have since contributed to several parts of the OS, mostly to the kernel and drivers as can be seen in the non-exhaustive list below.
| Contribution | Description | Release |
|---|---|---|
| DevFS | Device File System | 2.3 |
| Active Disk Probing | probes for on-disk metadata on connection of device | 2.3 |
| unix98 PTY support | 2.3 | |
| Writing/updating/porting several drivers | (e.g. hifn, glxsb, cs5536, nsclcsio,kbdmux, vn, aesni, ubsec, …) | |
| Kernel minidump support | ported from FreeBSD | 2.5 |
| GPIO framework | a lightweight GPIO framework, modelled after OpenBSD’s | 2.5 |
| Watchdog framework | a lightweight watchdog framework | 2.5 |
| Linux Emulation | updated to Linux Kernel 2.6 syscalls | 2.5 |
| dsched | an I/O Scheduler Framework, allowing for pluggable I/O scheduling policies | 2.7 |
| dsched FQ policy | a dsched fair queueing policy | 2.7 |
| proplib | ported from NetBSD | 2.7 |
| dm | device mapper, initially ported from NetBSD, mostly rewritten by now | 2.7 |
| dm_target_crypt | A disk encryption target (think dm-crypt) compatible with Linux’ cryptsetup, but written from sractch | 2.7 |
| initrd support | Support for an initial ramdisk, a la Linux initramfs, which can be used to mount a supported FS from any volume as root mount (e.g. LVM, crypt, ISCSI volumes) | 2.7 |
| udev, libdevattr | A device enumeration library and supporting daemon | 2.7 |
| opencrypto SMP improvements | involved in improving the performance of the software crypto (cryptosoft) by taking advantage of multiple CPU cores, as well as several fixes | 2.7 |
| opencrypto AES additional ciphers | Implemented AES XTS, Serpent CBC and XTS, Twofish CBC and XTS in opencrypto | 2.7, 2.11 |
| utmpx and wtmpx support | 2.9 | |
| VIA Padlock RNG driver | Added support to the VIA padlock driver to feed the kernel with entropy | 2.11 |
| libdm | libdm is a simple BSD-licensed device mapper library that is API-compatible with libdevicemapper | 2.11 |
| tcplay and libtcplay | tcplay is a simple BSD-licensed tool that allows reation, managing and mapping of TrueCrypt volumes. It is written from scratch and 100% compatible with TrueCrypt | 2.11 |
| dfregress | A small and UNIXy regression test framework and test driver | 2.13 |