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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.
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 1 2c251c14 2020-01-15 tracey .PATH:${.CURDIR}/../lib

 2 2c251c14 2020-01-15 tracey 

 3 bb5b19e3 2020-01-28 stsp SUBDIR = libexec

 4 2c251c14 2020-01-15 tracey 

 5 2c251c14 2020-01-15 tracey .include "../got-version.mk"

 6 bb5b19e3 2020-01-28 stsp .include "Makefile.inc"

 7 2c251c14 2020-01-15 tracey 

 8 2c251c14 2020-01-15 tracey PROG =		gotweb

 9 2c251c14 2020-01-15 tracey SRCS =		gotweb.c parse.y blame.c commit_graph.c delta.c diff.c \

10 7cc76137 2021-11-14 stsp 		diffreg.c error.c object.c object_cache.c \

11 2c251c14 2020-01-15 tracey 		object_idset.c object_parse.c opentemp.c path.c pack.c \

12 7cc76137 2021-11-14 stsp 		privsep.c reference.c repository.c sha1.c \

13 2c251c14 2020-01-15 tracey 		inflate.c buf.c rcsutil.c diff3.c lockfile.c \

14 c9d2b263 2020-11-11 stsp 		deflate.c object_create.c delta_cache.c gotconfig.c \

15 c9d2b263 2020-11-11 stsp 		diff_main.c diff_atomize_text.c diff_myers.c diff_output.c \

16 c9d2b263 2020-11-11 stsp 		diff_output_plain.c diff_output_unidiff.c \

17 b343c297 2021-10-11 stsp 		diff_output_edscript.c diff_patience.c \

18 6a800804 2022-10-13 stsp 		bloom.c murmurhash2.c sigs.c date.c object_open_privsep.c \

19 13b2bc37 2022-10-23 stsp 		read_gitconfig_privsep.c read_gotconfig_privsep.c \

20 13b2bc37 2022-10-23 stsp 		pollfd.c reference_parse.c

21 738b3756 2020-01-28 stsp MAN =		${PROG}.conf.5 ${PROG}.8

22 2c251c14 2020-01-15 tracey 

23 03b6a916 2020-01-16 stsp CPPFLAGS +=	-I${.CURDIR}/../include -I${.CURDIR}/../lib -I${.CURDIR} \

24 bb5b19e3 2020-01-28 stsp 		-I${KCGIBASE}/include

25 b343c297 2021-10-11 stsp LDADD +=	-L${KCGIBASE}/lib -lkcgihtml -lkcgi -lz -lm

26 43d8c06e 2020-01-28 stsp LDSTATIC =	${STATIC}

27 2c251c14 2020-01-15 tracey 

28 2c251c14 2020-01-15 tracey .if ${GOT_RELEASE} != "Yes"

29 2c251c14 2020-01-15 tracey NOMAN = Yes

30 2c251c14 2020-01-15 tracey .endif

31 2c251c14 2020-01-15 tracey 

32 2c251c14 2020-01-15 tracey realinstall:

33 faa61ea3 2020-02-17 stsp 	if [ ! -d ${DESTDIR}${CGI_DIR}/. ]; then \

34 faa61ea3 2020-02-17 stsp 		${INSTALL} -d -o root -g daemon -m 755 ${DESTDIR}${CGI_DIR}; \

35 2c251c14 2020-01-15 tracey 	fi

36 faa61ea3 2020-02-17 stsp 	if [ ! -d ${DESTDIR}${PUB_REPOS_DIR}/. ]; then \

37 faa61ea3 2020-02-17 stsp 		${INSTALL} -d -o root -g daemon -m 755 ${DESTDIR}${PUB_REPOS_DIR}; \

38 f29724dd 2020-01-28 stsp 	fi

39 54415d85 2020-01-15 tracey 	${INSTALL} -c -o ${WWWUSR} -g ${WWWGRP} -m 0755 ${PROG} \

40 faa61ea3 2020-02-17 stsp 	    ${DESTDIR}${CGI_DIR}/${PROG}

41 faa61ea3 2020-02-17 stsp 	if [ ! -d ${DESTDIR}${TMPL_DIR}/. ]; then \

42 faa61ea3 2020-02-17 stsp 		${INSTALL} -d -o root -g daemon -m 755 ${DESTDIR}${TMPL_DIR}; \

43 2c251c14 2020-01-15 tracey 	fi

44 54415d85 2020-01-15 tracey 	${INSTALL} -c -o ${WWWUSR} -g ${WWWGRP} -m 0755 \

45 faa61ea3 2020-02-17 stsp 	    ${.CURDIR}/files/cgi-bin/gw_tmpl/* ${DESTDIR}${TMPL_DIR}

46 faa61ea3 2020-02-17 stsp 	if [ ! -d ${DESTDIR}${HTTPD_DIR}/. ]; then \

47 faa61ea3 2020-02-17 stsp 		${INSTALL} -d -o root -g daemon -m 755 ${DESTDIR}${HTTPD_DIR}; \

48 2c251c14 2020-01-15 tracey 	fi

49 faa61ea3 2020-02-17 stsp 	if [ ! -d ${DESTDIR}${TMP_DIR}/. ]; then \

50 faa61ea3 2020-02-17 stsp 		${INSTALL} -d -o ${WWWUSR} -g ${WWWGRP} -m 755 ${DESTDIR}${TMP_DIR}; \

51 ec46ccd7 2020-01-15 tracey 	fi

52 faa61ea3 2020-02-17 stsp 	if [ ! -d ${DESTDIR}${PROG_DIR}/. ]; then \

53 faa61ea3 2020-02-17 stsp 		${INSTALL} -d -o root -g daemon -m 755 ${DESTDIR}${PROG_DIR}; \

54 2c251c14 2020-01-15 tracey 	fi

55 d1360688 2020-01-28 stsp 	${INSTALL} -c -o ${WWWUSR} -g ${WWWGRP} -m 0755 \

56 faa61ea3 2020-02-17 stsp 	    ${.CURDIR}/files/htdocs/${PROG}/* ${DESTDIR}${PROG_DIR}

57 2c251c14 2020-01-15 tracey 

58 2c251c14 2020-01-15 tracey .include <bsd.prog.mk>