[devel] [PATCH hasher-priv v1 1/3] Makefile

[Arseny Maslennikov]

On Fri, Dec 13, 2019 at 12:42:03PM +0100, Alex Gladkov wrote:
> diff --git a/hasher-priv/Makefile b/hasher-priv/Makefile
> index a815e9e..82aa385 100644
> --- a/hasher-priv/Makefile
> +++ b/hasher-priv/Makefile
> @@ -11,7 +11,7 @@ VERSION = $(shell sed '/^Version: */!d;s///;q' hasher-priv.spec)
>  HELPERS = getconf.sh getugid1.sh chrootuid1.sh getugid2.sh chrootuid2.sh
>  MAN5PAGES = $(PROJECT).conf.5
>  MAN8PAGES = $(PROJECT).8 hasher-useradd.8
> -TARGETS = $(PROJECT) hasher-useradd $(HELPERS) $(MAN5PAGES) $(MAN8PAGES)
> +TARGETS = $(PROJECT) hasher-privd hasher-useradd $(HELPERS) $(MAN5PAGES) $(MAN8PAGES)

To everyone: While the name "hasher-privd" minimises the amount of
renaming we have to do, it is too long a name, given that /proc/%d/comm
for each task is up to 16 bytes long on Linux, and is too easy to
confuse with hasher-priv, the client invoker program.

How about hasherd? hshd is too easily confused with sshd.
hasher-priv can then be mnemonised as "hasher-request-priv-operation",
hsh is the user frontend, and hasherd is the daemon.

>  
>  sysconfdir = /etc
>  libexecdir = /usr/lib
> @@ -21,6 +21,7 @@ man5dir = $(mandir)/man5
>  man8dir = $(mandir)/man8
>  configdir = $(sysconfdir)/$(PROJECT)
>  helperdir = $(libexecdir)/$(PROJECT)
> +socketdir = /var/run

Why /var/run and not /run, especially in a new project?

Even further, I would suggest that we store the socket in
/run/hasher-priv or something, setgid hashman, with 0710 rights. The
major service managers can create the directory on startup for us:
there's mkdir(1), there's RuntimeDirectory= and RuntimeDirectoryMode=.

>  DESTDIR =
>  
>  MKDIR_P = mkdir -p
> @@ -33,17 +34,25 @@ WARNINGS = -Wall -W -Wshadow -Wpointer-arith -Wwrite-strings \
>  	-Wmissing-prototypes -Wmissing-declarations -Wmissing-noreturn \
>  	-Wmissing-format-attribute -Wredundant-decls -Wdisabled-optimization
>  CPPFLAGS = -std=gnu99 -D_GNU_SOURCE $(CHDIRUID_FLAGS) \
> -	$(LFS_CFLAGS) -DPROJECT_VERSION=\"$(VERSION)\"
> +	$(LFS_CFLAGS) -DPROJECT_VERSION=\"$(VERSION)\" \
> +	-DSOCKETDIR=\"$(socketdir)\" -DPROJECT=\"$(PROJECT)\"
>  CFLAGS = -pipe -O2
>  override CFLAGS += $(WARNINGS)
>  LDLIBS =
>  
> -SRC = caller.c chdir.c chdiruid.c chid.c child.c chrootuid.c cmdline.c \
> +SRC = hasher-priv.c cmdline.c fds.c sockets.c logging.c communication.c xmalloc.c pass.c
> +OBJ = $(SRC:.c=.o)
> +
> +server_SRC = hasher-privd.c \
> +	communication.c epoll.c pidfile.c logging.c sockets.c \
> +	caller.c caller_server.c caller_task.c \
> +	chdir.c chdiruid.c chid.c child.c chrootuid.c cmdline.c \
>  	config.c fds.c getconf.c getugid.c ipc.c killuid.c io_log.c io_x11.c \
> -	main.c makedev.c mount.c net.c parent.c pass.c pty.c signal.c tty.c \
> +	makedev.c mount.c net.c parent.c pass.c pty.c signal.c tty.c \
>  	unshare.c xmalloc.c x11.c
> -OBJ = $(SRC:.c=.o)
> -DEP = $(SRC:.c=.d)
> +server_OBJ = $(server_SRC:.c=.o)
> +
> +DEP = $(SRC:.c=.d) $(server_SRC:.c=.d)
>  
>  .PHONY:	all install clean indent
>  
> @@ -52,14 +61,19 @@ all: $(TARGETS)
>  $(PROJECT): $(OBJ)
>  	$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@
>  
> +hasher-privd: $(server_OBJ)
> +	$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@
> +
>  install: all
>  	$(MKDIR_P) -m710 $(DESTDIR)$(configdir)/user.d
>  	$(INSTALL) -p -m640 fstab $(DESTDIR)$(configdir)/fstab
>  	$(INSTALL) -p -m640 system.conf $(DESTDIR)$(configdir)/system
> +	$(INSTALL) -p -m640 server.conf $(DESTDIR)$(configdir)/server
>  	$(MKDIR_P) -m750 $(DESTDIR)$(helperdir)
>  	$(INSTALL) -p -m700 $(PROJECT) $(DESTDIR)$(helperdir)/
>  	$(INSTALL) -p -m755 $(HELPERS) $(DESTDIR)$(helperdir)/
>  	$(MKDIR_P) -m755 $(DESTDIR)$(sbindir)
> +	$(INSTALL) -p -m755 hasher-privd $(DESTDIR)$(sbindir)/
>  	$(INSTALL) -p -m755 hasher-useradd $(DESTDIR)$(sbindir)/
>  	$(MKDIR_P) -m755 $(DESTDIR)$(man5dir)
>  	$(INSTALL) -p -m644 $(MAN5PAGES) $(DESTDIR)$(man5dir)/
> @@ -67,7 +81,7 @@ install: all
>  	$(INSTALL) -p -m644 $(MAN8PAGES) $(DESTDIR)$(man8dir)/
>  
>  clean:
> -	$(RM) $(TARGETS) $(DEP) $(OBJ) core *~
> +	$(RM) $(TARGETS) $(DEP) $(OBJ) $(server_OBJ) core *~
>  
>  indent:
>  	indent *.h *.c
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