xref: /openbmc/linux/security/apparmor/Makefile (revision a2818ee4)
1# SPDX-License-Identifier: GPL-2.0
2# Makefile for AppArmor Linux Security Module
3#
4obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
5
6apparmor-y := apparmorfs.o audit.o capability.o task.o ipc.o lib.o match.o \
7              path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
8              resource.o secid.o file.o policy_ns.o label.o mount.o net.o
9apparmor-$(CONFIG_SECURITY_APPARMOR_HASH) += crypto.o
10
11clean-files := capability_names.h rlim_names.h net_names.h
12
13# Build a lower case string table of address family names
14# Transform lines from
15#    #define AF_LOCAL		1	/* POSIX name for AF_UNIX	*/
16#    #define AF_INET		2	/* Internet IP Protocol 	*/
17# to
18#    [1] = "local",
19#    [2] = "inet",
20#
21# and build the securityfs entries for the mapping.
22# Transforms lines from
23#    #define AF_INET		2	/* Internet IP Protocol 	*/
24# to
25#    #define AA_SFS_AF_MASK "local inet"
26quiet_cmd_make-af = GEN     $@
27cmd_make-af = echo "static const char *address_family_names[] = {" > $@ ;\
28	sed $< >>$@ -r -n -e "/AF_MAX/d" -e "/AF_LOCAL/d" -e "/AF_ROUTE/d" -e \
29	 's/^\#define[ \t]+AF_([A-Z0-9_]+)[ \t]+([0-9]+)(.*)/[\2] = "\L\1",/p';\
30	echo "};" >> $@ ;\
31	printf '%s' '\#define AA_SFS_AF_MASK "' >> $@ ;\
32	sed -r -n -e "/AF_MAX/d" -e "/AF_LOCAL/d" -e "/AF_ROUTE/d" -e \
33	 's/^\#define[ \t]+AF_([A-Z0-9_]+)[ \t]+([0-9]+)(.*)/\L\1/p'\
34	 $< | tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
35
36# Build a lower case string table of sock type names
37# Transform lines from
38#    SOCK_STREAM	= 1,
39# to
40#    [1] = "stream",
41quiet_cmd_make-sock = GEN     $@
42cmd_make-sock = echo "static const char *sock_type_names[] = {" >> $@ ;\
43	sed $^ >>$@ -r -n \
44	-e 's/^\tSOCK_([A-Z0-9_]+)[\t]+=[ \t]+([0-9]+)(.*)/[\2] = "\L\1",/p';\
45	echo "};" >> $@
46
47# Build a lower case string table of capability names
48# Transforms lines from
49#    #define CAP_DAC_OVERRIDE     1
50# to
51#    [1] = "dac_override",
52quiet_cmd_make-caps = GEN     $@
53cmd_make-caps = echo "static const char *const capability_names[] = {" > $@ ;\
54	sed $< >>$@ -r -n -e '/CAP_FS_MASK/d' \
55	-e 's/^\#define[ \t]+CAP_([A-Z0-9_]+)[ \t]+([0-9]+)/[\2] = "\L\1",/p';\
56	echo "};" >> $@ ;\
57	printf '%s' '\#define AA_SFS_CAPS_MASK "' >> $@ ;\
58	sed $< -r -n -e '/CAP_FS_MASK/d' \
59	    -e 's/^\#define[ \t]+CAP_([A-Z0-9_]+)[ \t]+([0-9]+)/\L\1/p' | \
60	     tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
61
62
63# Build a lower case string table of rlimit names.
64# Transforms lines from
65#    #define RLIMIT_STACK		3	/* max stack size */
66# to
67#    [RLIMIT_STACK] = "stack",
68#
69# and build a second integer table (with the second sed cmd), that maps
70# RLIMIT defines to the order defined in asm-generic/resource.h  This is
71# required by policy load to map policy ordering of RLIMITs to internal
72# ordering for architectures that redefine an RLIMIT.
73# Transforms lines from
74#    #define RLIMIT_STACK		3	/* max stack size */
75# to
76# RLIMIT_STACK,
77#
78# and build the securityfs entries for the mapping.
79# Transforms lines from
80#    #define RLIMIT_FSIZE        1   /* Maximum filesize */
81#    #define RLIMIT_STACK		3	/* max stack size */
82# to
83# #define AA_SFS_RLIMIT_MASK "fsize stack"
84quiet_cmd_make-rlim = GEN     $@
85cmd_make-rlim = echo "static const char *const rlim_names[RLIM_NLIMITS] = {" \
86	> $@ ;\
87	sed $< >> $@ -r -n \
88	    -e 's/^\# ?define[ \t]+(RLIMIT_([A-Z0-9_]+)).*/[\1] = "\L\2",/p';\
89	echo "};" >> $@ ;\
90	echo "static const int rlim_map[RLIM_NLIMITS] = {" >> $@ ;\
91	sed -r -n "s/^\# ?define[ \t]+(RLIMIT_[A-Z0-9_]+).*/\1,/p" $< >> $@ ;\
92	echo "};" >> $@ ; \
93	printf '%s' '\#define AA_SFS_RLIMIT_MASK "' >> $@ ;\
94	sed -r -n 's/^\# ?define[ \t]+RLIMIT_([A-Z0-9_]+).*/\L\1/p' $< | \
95	    tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
96
97$(obj)/capability.o : $(obj)/capability_names.h
98$(obj)/net.o : $(obj)/net_names.h
99$(obj)/resource.o : $(obj)/rlim_names.h
100$(obj)/capability_names.h : $(srctree)/include/uapi/linux/capability.h \
101			    $(src)/Makefile
102	$(call cmd,make-caps)
103$(obj)/rlim_names.h : $(srctree)/include/uapi/asm-generic/resource.h \
104		      $(src)/Makefile
105	$(call cmd,make-rlim)
106$(obj)/net_names.h : $(srctree)/include/linux/socket.h \
107		     $(srctree)/include/linux/net.h \
108		     $(src)/Makefile
109	$(call cmd,make-af)
110	$(call cmd,make-sock)
111