Makefile: Better rule hacking for installation.
[firewall] / Makefile
1 ### -*-makefile-*-
2 ###
3 ### Makefile for firewall scripts
4 ###
5 ### (c) 2008 Mark Wooding
6 ###
7
8 ###----- Licensing notice ---------------------------------------------------
9 ###
10 ### This program is free software; you can redistribute it and/or modify
11 ### it under the terms of the GNU General Public License as published by
12 ### the Free Software Foundation; either version 2 of the License, or
13 ### (at your option) any later version.
14 ###
15 ### This program is distributed in the hope that it will be useful,
16 ### but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ### GNU General Public License for more details.
19 ###
20 ### You should have received a copy of the GNU General Public License
21 ### along with this program; if not, write to the Free Software Foundation,
22 ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 ### Makefile for firewall scripts
24
25 ###--------------------------------------------------------------------------
26 ### Preamble.
27
28 ## Extend these variables in `local.mk' to match your site.
29 MAIN_M4_SOURCES =
30 HOSTS =
31
32 ## Where to install the scripts.
33 FIREWALL = /etc/init.d/firewall
34
35 ## How to achieve root privileges.
36 ROOT = sudo
37
38 ## Throw additional scripts in here to have them installed.
39 SCRIPTS =
40 sbindir = /usr/local/sbin
41
42 ## Establish the default target early, so that targets in `local.mk' don't
43 ## override it.
44 default: all
45 .PHONY: default
46
47 ###--------------------------------------------------------------------------
48 ### Clever silent-rules stuff.
49
50 ## Verbosity switch.
51 V = 0
52
53 ## Suppressing command output.
54 V_AT = $(V_AT_$V)
55 V_AT_0 = @
56 V_AT_1 =
57
58 ## Replacing them with messages.
59 v_echo = $(call v_echo_$V,$1)
60 v_echo_0 = @printf " %-6s %s\n" "$1" "$@";
61 v_echo_1 =
62
63 ## Hacking.
64 empty =
65 space = $(empty) $(empty)
66
67 ## Specific commands.
68 V_M4 = $(call v_echo,M4)m4 -P$(space)
69 V_GEN = $(call v_echo,GEN)
70
71 ###--------------------------------------------------------------------------
72 ### Local configuration.
73
74 ## Should set up HOSTS and add stuff to MAIN_M4_SOURCES if necessary. Feel
75 ## free to define additional targets here.
76 include local.mk
77
78 ###--------------------------------------------------------------------------
79 ### Configuration.
80
81 ## The main m4 inputs which construct the firewall. These are read in last
82 ## to allow local configuration to change their environments.
83 MAIN_M4_SOURCES += config.m4
84 MAIN_M4_SOURCES += prologue.m4
85 MAIN_M4_SOURCES += functions.m4
86 MAIN_M4_SOURCES += numbers.m4
87 MAIN_M4_SOURCES += bookends.m4
88 MAIN_M4_SOURCES += classify.m4
89 MAIN_M4_SOURCES += icmp.m4
90
91 ## All of our m4 inputs. The base gets read first to set things up.
92 M4_SOURCES = base.m4
93 M4_SOURCES += $(MAIN_M4_SOURCES)
94
95 ###--------------------------------------------------------------------------
96 ### Hosts.
97
98 TARGETS = $(addsuffix .sh,$(HOSTS))
99
100 ###--------------------------------------------------------------------------
101 ### Prologue testing.
102
103 TARGETS += dummy.sh
104 dummy.sh: base.m4 prologue.m4 dummy-payload.m4
105 $(V_M4) $^ >$@.new && chmod +x $@.new && mv $@.new $@
106
107 TARGETS += dummy-inst.sh
108 dummy-inst.sh: dummy.sh
109 $(V_GEN)sed '/dummy_action=/s/lose/win/' $< >$@.new
110 $(V_AT)chmod +x $@.new && mv $@.new $@
111
112 ###--------------------------------------------------------------------------
113 ### Building.
114
115 all: $(TARGETS)
116 .PHONY: all
117
118 %.sh: %.m4 $(M4_SOURCES)
119 $(V_M4)base.m4 $*.m4 $(MAIN_M4_SOURCES) >$@.new
120 $(V_AT)chmod +x $@.new && mv $@.new $@
121
122 clean:; rm -f $(TARGETS) *.new
123 .PHONY: clean
124
125 ###--------------------------------------------------------------------------
126 ### Installation.
127
128 ## The local machine doesn't want the complicated SSH stuff.
129 THISHOST = $(shell hostname)
130 OTHERHOSTS = $(filter-out $(THISHOST), $(HOSTS))
131
132 ## Testing.
133 check: $(THISHOST).sh
134 $(ROOT) ./$(THISHOST).sh test
135
136 ## Installation on a local host,
137 install/$(THISHOST): $(THISHOST).sh
138 [ "x$(SCRIPTS)" = x ] || $(ROOT) install -m755 $(SCRIPTS) $(sbindir)
139 $(ROOT) ./$(THISHOST).sh replace
140
141 ## Installation on a remote host.
142 $(addprefix install/, $(OTHERHOSTS)): install/%: %.sh
143 if [ "x$(SCRIPTS)" != x ]; then \
144 for i in $(SCRIPTS); do \
145 $(ROOT) scp $$i root@$*:$(sbindir)/$$i.new && \
146 $(ROOT) ssh root@$* \
147 'cd $(sbindir) && chmod 755 $$i.new && mv $$i.new $i' || \
148 exit 1; \
149 done; \
150 fi
151 $(ROOT) scp $*.sh root@$*:$(FIREWALL).new
152 $(ROOT) ssh root@$* $(FIREWALL).new remote-prepare
153 $(ROOT) ssh root@$* $(FIREWALL).new remote-commit
154 $(ROOT) ssh root@$* rm -f $(FIREWALL).new
155
156 ## General installation target.
157 install: all install/$(THISHOST) $(addprefix install/,$(HOSTS))
158 .PHONY: install $(addprefix install/,$(HOSTS))
159
160 ###----- That's all, folks --------------------------------------------------