summaryrefslogtreecommitdiff
blob: fcf7a4d0666e3ac405aaa7cfb01c567ddc52b251 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sec-policy/selinux-base-policy/selinux-base-policy-2.20110726-r4.ebuild,v 1.1 2011/09/17 16:20:17 swift Exp $

EAPI="4"
IUSE="+peer_perms +open_perms +ubac doc"

inherit eutils

DESCRIPTION="Gentoo base policy for SELinux"
HOMEPAGE="http://www.gentoo.org/proj/en/hardened/selinux/"
SRC_URI="http://oss.tresys.com/files/refpolicy/refpolicy-${PV}.tar.bz2
	http://dev.gentoo.org/~swift/patches/${PN}/patchbundle-${PF}.tar.bz2"
LICENSE="GPL-2"
SLOT="0"

KEYWORDS="~amd64 ~x86"

RDEPEND=">=sys-apps/policycoreutils-1.30.30
	>=sys-fs/udev-151"
DEPEND="${RDEPEND}
	sys-devel/m4
	>=sys-apps/checkpolicy-1.30.12"

S=${WORKDIR}/

src_prepare() {
	# Apply the gentoo patches to the policy. These patches are only necessary
	# for base policies, or for interface changes on modules.
	EPATCH_MULTI_MSG="Applying SELinux policy updates ... " \
	EPATCH_SUFFIX="patch" \
	EPATCH_SOURCE="${WORKDIR}" \
	EPATCH_FORCE="yes" \
	epatch

	cd "${S}/refpolicy"
	# Fix bug 257111 - Correct the initial sid for cron-started jobs in the
	# system_r role
	sed -i -e 's:system_crond_t:system_cronjob_t:g' \
		"${S}/refpolicy/config/appconfig-standard/default_contexts"
	sed -i -e 's|system_r:cronjob_t|system_r:system_cronjob_t|g' \
		"${S}/refpolicy/config/appconfig-mls/default_contexts"
	sed -i -e 's|system_r:cronjob_t|system_r:system_cronjob_t|g' \
		"${S}/refpolicy/config/appconfig-mcs/default_contexts"
}

src_configure() {
	[ -z "${POLICY_TYPES}" ] && local POLICY_TYPES="targeted strict mls mcs"

	# Update the SELinux refpolicy capabilities based on the users' USE flags.

	if ! use peer_perms; then
		sed -i -e '/network_peer_controls/d' \
			"${S}/refpolicy/policy/policy_capabilities"
	fi

	if ! use open_perms; then
		sed -i -e '/open_perms/d' \
			"${S}/refpolicy/policy/policy_capabilities"
	fi

	if ! use ubac; then
		sed -i -e '/^UBAC/s/y/n/' "${S}/refpolicy/build.conf" \
			|| die "Failed to disable User Based Access Control"
	fi

	echo "DISTRO = gentoo" >> "${S}/refpolicy/build.conf"

	# Setup the policies based on the types delivered by the end user.
	# These types can be "targeted", "strict", "mcs" and "mls".
	for i in ${POLICY_TYPES}; do
		cp -a "${S}/refpolicy" "${S}/${i}"

		cd "${S}/${i}";
		make conf || die "Make conf in ${i} failed"

		# Define what we see as "base" and what we want to remain modular.
		cp "${FILESDIR}/modules.conf" \
			"${S}/${i}/policy/modules.conf" \
			|| die "failed to set up modules.conf"
		# In case of "targeted", we add the "unconfined" to the base policy
		if [[ "${i}" == "targeted" ]];
		then
			echo "unconfined = base" >> "${S}/${i}/policy/modules.conf"
		fi
		# Add xdg support
		echo "xdg = base" >> "${S}/${i}/policy/modules.conf"

		sed -i -e '/^QUIET/s/n/y/' -e "/^NAME/s/refpolicy/$i/" \
			"${S}/${i}/build.conf" || die "build.conf setup failed."

		if [[ "${i}" == "mls" ]] || [[ "${i}" == "mcs" ]];
		then
			# MCS/MLS require additional settings
			sed -i -e "/^TYPE/s/standard/${i}/" "${S}/${i}/build.conf" \
				|| die "failed to set type to mls"
		fi

		if [ "${i}" == "targeted" ]; then
			sed -i -e '/root/d' -e 's/user_u/unconfined_u/' \
			"${S}/${i}/config/appconfig-standard/seusers" \
			|| die "targeted seusers setup failed."
		fi
	done
}

src_compile() {
	[ -z "${POLICY_TYPES}" ] && local POLICY_TYPES="targeted strict mls mcs"

	for i in ${POLICY_TYPES}; do
		cd "${S}/${i}"
		make base || die "${i} compile failed"
		if use doc; then
			make html || die
		fi
	done
}

src_install() {
	[ -z "${POLICY_TYPES}" ] && local POLICY_TYPES="targeted strict mls mcs"

	for i in ${POLICY_TYPES}; do
		cd "${S}/${i}"

		make DESTDIR="${D}" install \
			|| die "${i} install failed."

		make DESTDIR="${D}" install-headers \
			|| die "${i} headers install failed."

		echo "run_init_t" > "${D}/etc/selinux/${i}/contexts/run_init_type"

		echo "textrel_shlib_t" >> "${D}/etc/selinux/${i}/contexts/customizable_types"

		# libsemanage won't make this on its own
		keepdir "/etc/selinux/${i}/policy"

		if use doc; then
			dohtml doc/html/*;
		fi
	done

	dodoc doc/Makefile.example doc/example.{te,fc,if}

	insinto /etc/selinux
	doins "${FILESDIR}/config"
}

pkg_preinst() {
	has_version "<${CATEGORY}/${PN}-2.20101213-r13"
	previous_less_than_r13=$?
}

pkg_postinst() {
	[ -z "${POLICY_TYPES}" ] && local POLICY_TYPES="targeted strict mls mcs"

	for i in ${POLICY_TYPES}; do
		einfo "Inserting base module into ${i} module store."

		cd "${ROOT}/usr/share/selinux/${i}"
		semodule -s "${i}" -b base.pp || die "Could not load in new base policy"
	done
	elog "Updates on policies might require you to relabel files. If you, after"
	elog "installing new SELinux policies, get 'permission denied' errors,"
	elog "relabelling your system using 'rlpkg -a -r' might resolve the issues."
}