Blame

Date:
Message:
introduce gotd(8), a Git repository server reachable via ssh(1) This is an initial barebones implementation which provides the absolute minimum of functionality required to serve got(1) and git(1) clients. Basic fetch/send functionality has been tested and seems to work here, but this server is not yet expected to be stable. More testing is welcome. See the man pages for setup instructions. The current design uses one reader and one writer process per repository, which will have to be extended to N readers and N writers in the future. At startup, each process will chroot(2) into its assigned repository. This works because gotd(8) can only be started as root, and will then fork+exec, chroot, and privdrop. At present the parent process runs with the following pledge(2) promises: "stdio rpath wpath cpath proc getpw sendfd recvfd fattr flock unix unveil" The parent is the only process able to modify the repository in a way that becomes visible to Git clients. The parent uses unveil(2) to restrict its view of the filesystem to /tmp and the repositories listed in the configuration file gotd.conf(5). Per-repository chroot(2) processes use "stdio rpath sendfd recvfd". The writer defers to the parent for modifying references in the repository to point at newly uploaded commits. The reader is fine without such help, because Git repositories can be read without having to create any lock-files. gotd(8) requires a dedicated user ID, which should own repositories on the filesystem, and a separate secondary group, which should not have filesystem-level repository access, and must be allowed access to the gotd(8) socket. To obtain Git repository access, users must be members of this secondary group, and must have their login shell set to gotsh(1). gotsh(1) connects to the gotd(8) socket and speaks Git-protocol towards the client on the other end of the SSH connection. gotsh(1) is not an interactive command shell. At present, authenticated clients are granted read/write access to all repositories and all references (except for the "refs/got/" and the "refs/remotes/" namespaces, which are already being protected from modification). While complicated access control mechanism are not a design goal, making it possible to safely offer anonymous Git repository access over ssh(1) is on the road map.
Actions:
History | Blob | Raw File
 1 3efd8e31 2022-10-23 thomas .PATH:${.CURDIR}/../lib

 2 3efd8e31 2022-10-23 thomas 

 3 3efd8e31 2022-10-23 thomas .include "../got-version.mk"

 4 3efd8e31 2022-10-23 thomas 

 5 3efd8e31 2022-10-23 thomas PREFIX ?=	/usr/local

 6 3efd8e31 2022-10-23 thomas BINDIR ?=	${PREFIX}/sbin

 7 3efd8e31 2022-10-23 thomas 

 8 3efd8e31 2022-10-23 thomas PROG=		gotd

 9 3efd8e31 2022-10-23 thomas SRCS=		gotd.c repo_read.c repo_write.c log.c privsep_stub.c imsg.c \

10 3efd8e31 2022-10-23 thomas 		parse.y pack_create.c ratelimit.c deltify.c \

11 3efd8e31 2022-10-23 thomas 		bloom.c buf.c date.c deflate.c delta.c delta_cache.c error.c \

12 3efd8e31 2022-10-23 thomas 		gitconfig.c gotconfig.c inflate.c lockfile.c murmurhash2.c \

13 3efd8e31 2022-10-23 thomas 		object.c object_cache.c object_create.c object_idset.c \

14 3efd8e31 2022-10-23 thomas 		object_open_io.c object_parse.c opentemp.c pack.c path.c \

15 3efd8e31 2022-10-23 thomas 		read_gitconfig.c read_gotconfig.c reference.c repository.c  \

16 3efd8e31 2022-10-23 thomas 		sha1.c sigs.c pack_create_io.c pollfd.c reference_parse.c \

17 3efd8e31 2022-10-23 thomas 		repo_imsg.c pack_index.c

18 3efd8e31 2022-10-23 thomas 

19 3efd8e31 2022-10-23 thomas MAN =		${PROG}.conf.5 ${PROG}.8

20 3efd8e31 2022-10-23 thomas 

21 3efd8e31 2022-10-23 thomas CPPFLAGS = -I${.CURDIR}/../include -I${.CURDIR}/../lib -I${.CURDIR}

22 3efd8e31 2022-10-23 thomas 

23 3efd8e31 2022-10-23 thomas .if defined(PROFILE)

24 3efd8e31 2022-10-23 thomas LDADD = -lutil_p -lz_p -lm_p -lc_p -levent_p

25 3efd8e31 2022-10-23 thomas .else

26 3efd8e31 2022-10-23 thomas LDADD = -lutil -lz -lm -levent

27 3efd8e31 2022-10-23 thomas .endif

28 3efd8e31 2022-10-23 thomas DPADD = ${LIBZ} ${LIBUTIL}

29 3efd8e31 2022-10-23 thomas 

30 3efd8e31 2022-10-23 thomas .if ${GOT_RELEASE} != "Yes"

31 3efd8e31 2022-10-23 thomas NOMAN = Yes

32 3efd8e31 2022-10-23 thomas .endif

33 3efd8e31 2022-10-23 thomas 

34 3efd8e31 2022-10-23 thomas .include <bsd.prog.mk>