mirror of
https://gitlab.com/apparmor/apparmor
synced 2025-08-31 14:25:52 +00:00
Compare commits
41 Commits
check-if-s
...
v2.8.1
Author | SHA1 | Date | |
---|---|---|---|
|
3158465820 | ||
|
a27cd136b6 | ||
|
e7e6aa9ed2 | ||
|
e478b9b37d | ||
|
98a1594e88 | ||
|
e6614df4a5 | ||
|
701537325e | ||
|
dca6359ad5 | ||
|
6e02694f6f | ||
|
fc6889ae8e | ||
|
0a97828f30 | ||
|
84e7cdb5ee | ||
|
6654dfe251 | ||
|
a99e93c412 | ||
|
ae12cc8e42 | ||
|
590a39e194 | ||
|
0da19a9474 | ||
|
06aa9b0a54 | ||
|
76925a236c | ||
|
626b9a9d36 | ||
|
4fdb2dd24e | ||
|
6e0996981b | ||
|
8e33b4a173 | ||
|
3e18698c78 | ||
|
0fc26d7c47 | ||
|
78cd88c56d | ||
|
c48e4a76d3 | ||
|
bbaa1fa6d1 | ||
|
ecd14e46b9 | ||
|
e0c94c9039 | ||
|
b5c6e11aca | ||
|
fd6a33f89e | ||
|
276ef3facf | ||
|
4a42d74351 | ||
|
00bf73f7c2 | ||
|
b0a05c5b3d | ||
|
563a49adc4 | ||
|
107b5113bd | ||
|
c1c1b229c1 | ||
|
9fbfa4c7e0 | ||
|
77de4e26cd |
2
Makefile
2
Makefile
@@ -12,7 +12,7 @@ DIRS=parser \
|
||||
changehat/pam_apparmor \
|
||||
tests
|
||||
|
||||
REPO_URL?=lp:apparmor
|
||||
REPO_URL?=lp:apparmor/2.8
|
||||
# alternate possibilities to export from
|
||||
#REPO_URL=.
|
||||
#REPO_URL="bzr+ssh://bazaar.launchpad.net/~sbeattie/+junk/apparmor-dev/"
|
||||
|
14
README
14
README
@@ -146,6 +146,20 @@ For details on structure and adding tests, see libraries/libapparmor/README.
|
||||
$ cd libraries/libapparmor
|
||||
$ make check
|
||||
|
||||
Utils
|
||||
-----
|
||||
There are some simple tests available, including basic perl syntax
|
||||
checks for the perl modules and executables. There are also minimal
|
||||
checks on the python utilities and python-based tests in the test/
|
||||
subdirectory.
|
||||
$ cd utils
|
||||
$ make check
|
||||
|
||||
The aa-decode utility to be tested can be overridden by
|
||||
setting up environment variable APPARMOR_DECODE; e.g.:
|
||||
|
||||
$ APPARMOR_DECODE=/usr/bin/aa-decode make check
|
||||
|
||||
Profile checks
|
||||
--------------
|
||||
A basic consistency check to ensure that the parser and aa-logprof parse
|
||||
|
@@ -27,6 +27,11 @@
|
||||
DISTRIBUTION=AppArmor
|
||||
VERSION=$(shell cat common/Version)
|
||||
|
||||
AWK:=$(shell which awk)
|
||||
ifndef AWK
|
||||
$(error awk utility required for build but not available)
|
||||
endif
|
||||
|
||||
# OVERRIDABLE variables
|
||||
# Set these variables before including Make.rules to change its behavior
|
||||
# SPECFILE - for packages that have a non-standard specfile name
|
||||
|
@@ -1 +1 @@
|
||||
2.8.0
|
||||
2.8.1
|
||||
|
@@ -0,0 +1,285 @@
|
||||
From 05bf1eb7276886a3eda0588a8e012b558b693e96 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Thu, 22 Jul 2010 02:32:02 -0700
|
||||
Subject: [PATCH 1/6] UBUNTU: SAUCE: AppArmor: Add profile introspection file
|
||||
to interface
|
||||
|
||||
Add the dynamic profiles file to the interace, to allow load policy
|
||||
introspection.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
Acked-by: Kees Cook <kees@ubuntu.com>
|
||||
---
|
||||
security/apparmor/Kconfig | 9 ++
|
||||
security/apparmor/apparmorfs.c | 231 ++++++++++++++++++++++++++++++++++++++++
|
||||
2 files changed, 240 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/Kconfig b/security/apparmor/Kconfig
|
||||
index 9b9013b..51ebf96 100644
|
||||
--- a/security/apparmor/Kconfig
|
||||
+++ b/security/apparmor/Kconfig
|
||||
@@ -29,3 +29,12 @@ config SECURITY_APPARMOR_BOOTPARAM_VALUE
|
||||
boot.
|
||||
|
||||
If you are unsure how to answer this question, answer 1.
|
||||
+
|
||||
+config SECURITY_APPARMOR_COMPAT_24
|
||||
+ bool "Enable AppArmor 2.4 compatability"
|
||||
+ depends on SECURITY_APPARMOR
|
||||
+ default y
|
||||
+ help
|
||||
+ This option enables compatability with AppArmor 2.4. It is
|
||||
+ recommended if compatability with older versions of AppArmor
|
||||
+ is desired.
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 16c15ec..42b7c9f 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -182,6 +182,234 @@ const struct file_operations aa_fs_seq_file_ops = {
|
||||
.release = single_release,
|
||||
};
|
||||
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+/**
|
||||
+ * __next_namespace - find the next namespace to list
|
||||
+ * @root: root namespace to stop search at (NOT NULL)
|
||||
+ * @ns: current ns position (NOT NULL)
|
||||
+ *
|
||||
+ * Find the next namespace from @ns under @root and handle all locking needed
|
||||
+ * while switching current namespace.
|
||||
+ *
|
||||
+ * Returns: next namespace or NULL if at last namespace under @root
|
||||
+ * NOTE: will not unlock root->lock
|
||||
+ */
|
||||
+static struct aa_namespace *__next_namespace(struct aa_namespace *root,
|
||||
+ struct aa_namespace *ns)
|
||||
+{
|
||||
+ struct aa_namespace *parent;
|
||||
+
|
||||
+ /* is next namespace a child */
|
||||
+ if (!list_empty(&ns->sub_ns)) {
|
||||
+ struct aa_namespace *next;
|
||||
+ next = list_first_entry(&ns->sub_ns, typeof(*ns), base.list);
|
||||
+ read_lock(&next->lock);
|
||||
+ return next;
|
||||
+ }
|
||||
+
|
||||
+ /* check if the next ns is a sibling, parent, gp, .. */
|
||||
+ parent = ns->parent;
|
||||
+ while (parent) {
|
||||
+ read_unlock(&ns->lock);
|
||||
+ list_for_each_entry_continue(ns, &parent->sub_ns, base.list) {
|
||||
+ read_lock(&ns->lock);
|
||||
+ return ns;
|
||||
+ }
|
||||
+ if (parent == root)
|
||||
+ return NULL;
|
||||
+ ns = parent;
|
||||
+ parent = parent->parent;
|
||||
+ }
|
||||
+
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * __first_profile - find the first profile in a namespace
|
||||
+ * @root: namespace that is root of profiles being displayed (NOT NULL)
|
||||
+ * @ns: namespace to start in (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: unrefcounted profile or NULL if no profile
|
||||
+ */
|
||||
+static struct aa_profile *__first_profile(struct aa_namespace *root,
|
||||
+ struct aa_namespace *ns)
|
||||
+{
|
||||
+ for ( ; ns; ns = __next_namespace(root, ns)) {
|
||||
+ if (!list_empty(&ns->base.profiles))
|
||||
+ return list_first_entry(&ns->base.profiles,
|
||||
+ struct aa_profile, base.list);
|
||||
+ }
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * __next_profile - step to the next profile in a profile tree
|
||||
+ * @profile: current profile in tree (NOT NULL)
|
||||
+ *
|
||||
+ * Perform a depth first taversal on the profile tree in a namespace
|
||||
+ *
|
||||
+ * Returns: next profile or NULL if done
|
||||
+ * Requires: profile->ns.lock to be held
|
||||
+ */
|
||||
+static struct aa_profile *__next_profile(struct aa_profile *p)
|
||||
+{
|
||||
+ struct aa_profile *parent;
|
||||
+ struct aa_namespace *ns = p->ns;
|
||||
+
|
||||
+ /* is next profile a child */
|
||||
+ if (!list_empty(&p->base.profiles))
|
||||
+ return list_first_entry(&p->base.profiles, typeof(*p),
|
||||
+ base.list);
|
||||
+
|
||||
+ /* is next profile a sibling, parent sibling, gp, subling, .. */
|
||||
+ parent = p->parent;
|
||||
+ while (parent) {
|
||||
+ list_for_each_entry_continue(p, &parent->base.profiles,
|
||||
+ base.list)
|
||||
+ return p;
|
||||
+ p = parent;
|
||||
+ parent = parent->parent;
|
||||
+ }
|
||||
+
|
||||
+ /* is next another profile in the namespace */
|
||||
+ list_for_each_entry_continue(p, &ns->base.profiles, base.list)
|
||||
+ return p;
|
||||
+
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * next_profile - step to the next profile in where ever it may be
|
||||
+ * @root: root namespace (NOT NULL)
|
||||
+ * @profile: current profile (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: next profile or NULL if there isn't one
|
||||
+ */
|
||||
+static struct aa_profile *next_profile(struct aa_namespace *root,
|
||||
+ struct aa_profile *profile)
|
||||
+{
|
||||
+ struct aa_profile *next = __next_profile(profile);
|
||||
+ if (next)
|
||||
+ return next;
|
||||
+
|
||||
+ /* finished all profiles in namespace move to next namespace */
|
||||
+ return __first_profile(root, __next_namespace(root, profile->ns));
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * p_start - start a depth first traversal of profile tree
|
||||
+ * @f: seq_file to fill
|
||||
+ * @pos: current position
|
||||
+ *
|
||||
+ * Returns: first profile under current namespace or NULL if none found
|
||||
+ *
|
||||
+ * acquires first ns->lock
|
||||
+ */
|
||||
+static void *p_start(struct seq_file *f, loff_t *pos)
|
||||
+ __acquires(root->lock)
|
||||
+{
|
||||
+ struct aa_profile *profile = NULL;
|
||||
+ struct aa_namespace *root = aa_current_profile()->ns;
|
||||
+ loff_t l = *pos;
|
||||
+ f->private = aa_get_namespace(root);
|
||||
+
|
||||
+
|
||||
+ /* find the first profile */
|
||||
+ read_lock(&root->lock);
|
||||
+ profile = __first_profile(root, root);
|
||||
+
|
||||
+ /* skip to position */
|
||||
+ for (; profile && l > 0; l--)
|
||||
+ profile = next_profile(root, profile);
|
||||
+
|
||||
+ return profile;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * p_next - read the next profile entry
|
||||
+ * @f: seq_file to fill
|
||||
+ * @p: profile previously returned
|
||||
+ * @pos: current position
|
||||
+ *
|
||||
+ * Returns: next profile after @p or NULL if none
|
||||
+ *
|
||||
+ * may acquire/release locks in namespace tree as necessary
|
||||
+ */
|
||||
+static void *p_next(struct seq_file *f, void *p, loff_t *pos)
|
||||
+{
|
||||
+ struct aa_profile *profile = p;
|
||||
+ struct aa_namespace *root = f->private;
|
||||
+ (*pos)++;
|
||||
+
|
||||
+ return next_profile(root, profile);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * p_stop - stop depth first traversal
|
||||
+ * @f: seq_file we are filling
|
||||
+ * @p: the last profile writen
|
||||
+ *
|
||||
+ * Release all locking done by p_start/p_next on namespace tree
|
||||
+ */
|
||||
+static void p_stop(struct seq_file *f, void *p)
|
||||
+ __releases(root->lock)
|
||||
+{
|
||||
+ struct aa_profile *profile = p;
|
||||
+ struct aa_namespace *root = f->private, *ns;
|
||||
+
|
||||
+ if (profile) {
|
||||
+ for (ns = profile->ns; ns && ns != root; ns = ns->parent)
|
||||
+ read_unlock(&ns->lock);
|
||||
+ }
|
||||
+ read_unlock(&root->lock);
|
||||
+ aa_put_namespace(root);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * seq_show_profile - show a profile entry
|
||||
+ * @f: seq_file to file
|
||||
+ * @p: current position (profile) (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: error on failure
|
||||
+ */
|
||||
+static int seq_show_profile(struct seq_file *f, void *p)
|
||||
+{
|
||||
+ struct aa_profile *profile = (struct aa_profile *)p;
|
||||
+ struct aa_namespace *root = f->private;
|
||||
+
|
||||
+ if (profile->ns != root)
|
||||
+ seq_printf(f, ":%s://", aa_ns_name(root, profile->ns));
|
||||
+ seq_printf(f, "%s (%s)\n", profile->base.hname,
|
||||
+ COMPLAIN_MODE(profile) ? "complain" : "enforce");
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct seq_operations aa_fs_profiles_op = {
|
||||
+ .start = p_start,
|
||||
+ .next = p_next,
|
||||
+ .stop = p_stop,
|
||||
+ .show = seq_show_profile,
|
||||
+};
|
||||
+
|
||||
+static int profiles_open(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ return seq_open(file, &aa_fs_profiles_op);
|
||||
+}
|
||||
+
|
||||
+static int profiles_release(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ return seq_release(inode, file);
|
||||
+}
|
||||
+
|
||||
+const struct file_operations aa_fs_profiles_fops = {
|
||||
+ .open = profiles_open,
|
||||
+ .read = seq_read,
|
||||
+ .llseek = seq_lseek,
|
||||
+ .release = profiles_release,
|
||||
+};
|
||||
+#endif /* CONFIG_SECURITY_APPARMOR_COMPAT_24 */
|
||||
+
|
||||
/** Base file system setup **/
|
||||
|
||||
static struct aa_fs_entry aa_fs_entry_file[] = {
|
||||
@@ -210,6 +438,9 @@ static struct aa_fs_entry aa_fs_entry_apparmor[] = {
|
||||
AA_FS_FILE_FOPS(".load", 0640, &aa_fs_profile_load),
|
||||
AA_FS_FILE_FOPS(".replace", 0640, &aa_fs_profile_replace),
|
||||
AA_FS_FILE_FOPS(".remove", 0640, &aa_fs_profile_remove),
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ AA_FS_FILE_FOPS("profiles", 0640, &aa_fs_profiles_fops),
|
||||
+#endif
|
||||
AA_FS_DIR("features", aa_fs_entry_features),
|
||||
{ }
|
||||
};
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,603 @@
|
||||
From 4facdf9db37c12ff655c91270d9030e2ed805ca2 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Mon, 4 Oct 2010 15:03:36 -0700
|
||||
Subject: [PATCH 2/6] UBUNTU: SAUCE: AppArmor: basic networking rules
|
||||
|
||||
Base support for network mediation.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/.gitignore | 2 +-
|
||||
security/apparmor/Makefile | 42 +++++++++-
|
||||
security/apparmor/apparmorfs.c | 1 +
|
||||
security/apparmor/include/audit.h | 4 +
|
||||
security/apparmor/include/net.h | 44 ++++++++++
|
||||
security/apparmor/include/policy.h | 3 +
|
||||
security/apparmor/lsm.c | 112 +++++++++++++++++++++++++
|
||||
security/apparmor/net.c | 162 ++++++++++++++++++++++++++++++++++++
|
||||
security/apparmor/policy.c | 1 +
|
||||
security/apparmor/policy_unpack.c | 46 ++++++++++
|
||||
10 files changed, 414 insertions(+), 3 deletions(-)
|
||||
create mode 100644 security/apparmor/include/net.h
|
||||
create mode 100644 security/apparmor/net.c
|
||||
|
||||
diff --git a/security/apparmor/.gitignore b/security/apparmor/.gitignore
|
||||
index 4d995ae..d5b291e 100644
|
||||
--- a/security/apparmor/.gitignore
|
||||
+++ b/security/apparmor/.gitignore
|
||||
@@ -1,6 +1,6 @@
|
||||
#
|
||||
# Generated include files
|
||||
#
|
||||
-af_names.h
|
||||
+net_names.h
|
||||
capability_names.h
|
||||
rlim_names.h
|
||||
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
|
||||
index 806bd19..19daa85 100644
|
||||
--- a/security/apparmor/Makefile
|
||||
+++ b/security/apparmor/Makefile
|
||||
@@ -4,9 +4,9 @@ obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
|
||||
|
||||
apparmor-y := apparmorfs.o audit.o capability.o context.o ipc.o lib.o match.o \
|
||||
path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
|
||||
- resource.o sid.o file.o
|
||||
+ resource.o sid.o file.o net.o
|
||||
|
||||
-clean-files := capability_names.h rlim_names.h
|
||||
+clean-files := capability_names.h rlim_names.h net_names.h
|
||||
|
||||
|
||||
# Build a lower case string table of capability names
|
||||
@@ -20,6 +20,38 @@ cmd_make-caps = echo "static const char *const capability_names[] = {" > $@ ;\
|
||||
-e 's/^\#define[ \t]+CAP_([A-Z0-9_]+)[ \t]+([0-9]+)/[\2] = "\L\1",/p';\
|
||||
echo "};" >> $@
|
||||
|
||||
+# Build a lower case string table of address family names
|
||||
+# Transform lines from
|
||||
+# define AF_LOCAL 1 /* POSIX name for AF_UNIX */
|
||||
+# #define AF_INET 2 /* Internet IP Protocol */
|
||||
+# to
|
||||
+# [1] = "local",
|
||||
+# [2] = "inet",
|
||||
+#
|
||||
+# and build the securityfs entries for the mapping.
|
||||
+# Transforms lines from
|
||||
+# #define AF_INET 2 /* Internet IP Protocol */
|
||||
+# to
|
||||
+# #define AA_FS_AF_MASK "local inet"
|
||||
+quiet_cmd_make-af = GEN $@
|
||||
+cmd_make-af = echo "static const char *address_family_names[] = {" > $@ ;\
|
||||
+ sed $< >>$@ -r -n -e "/AF_MAX/d" -e "/AF_LOCAL/d" -e \
|
||||
+ 's/^\#define[ \t]+AF_([A-Z0-9_]+)[ \t]+([0-9]+)(.*)/[\2] = "\L\1",/p';\
|
||||
+ echo "};" >> $@ ;\
|
||||
+ echo -n '\#define AA_FS_AF_MASK "' >> $@ ;\
|
||||
+ sed -r -n 's/^\#define[ \t]+AF_([A-Z0-9_]+)[ \t]+([0-9]+)(.*)/\L\1/p'\
|
||||
+ $< | tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
|
||||
+
|
||||
+# Build a lower case string table of sock type names
|
||||
+# Transform lines from
|
||||
+# SOCK_STREAM = 1,
|
||||
+# to
|
||||
+# [1] = "stream",
|
||||
+quiet_cmd_make-sock = GEN $@
|
||||
+cmd_make-sock = echo "static const char *sock_type_names[] = {" >> $@ ;\
|
||||
+ sed $^ >>$@ -r -n \
|
||||
+ -e 's/^\tSOCK_([A-Z0-9_]+)[\t]+=[ \t]+([0-9]+)(.*)/[\2] = "\L\1",/p';\
|
||||
+ echo "};" >> $@
|
||||
|
||||
# Build a lower case string table of rlimit names.
|
||||
# Transforms lines from
|
||||
@@ -56,6 +88,7 @@ cmd_make-rlim = echo "static const char *const rlim_names[RLIM_NLIMITS] = {" \
|
||||
tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
|
||||
|
||||
$(obj)/capability.o : $(obj)/capability_names.h
|
||||
+$(obj)/net.o : $(obj)/net_names.h
|
||||
$(obj)/resource.o : $(obj)/rlim_names.h
|
||||
$(obj)/capability_names.h : $(srctree)/include/linux/capability.h \
|
||||
$(src)/Makefile
|
||||
@@ -63,3 +96,8 @@ $(obj)/capability_names.h : $(srctree)/include/linux/capability.h \
|
||||
$(obj)/rlim_names.h : $(srctree)/include/asm-generic/resource.h \
|
||||
$(src)/Makefile
|
||||
$(call cmd,make-rlim)
|
||||
+$(obj)/net_names.h : $(srctree)/include/linux/socket.h \
|
||||
+ $(srctree)/include/linux/net.h \
|
||||
+ $(src)/Makefile
|
||||
+ $(call cmd,make-af)
|
||||
+ $(call cmd,make-sock)
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 42b7c9f..114fb23 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -429,6 +429,7 @@ static struct aa_fs_entry aa_fs_entry_domain[] = {
|
||||
static struct aa_fs_entry aa_fs_entry_features[] = {
|
||||
AA_FS_DIR("domain", aa_fs_entry_domain),
|
||||
AA_FS_DIR("file", aa_fs_entry_file),
|
||||
+ AA_FS_DIR("network", aa_fs_entry_network),
|
||||
AA_FS_FILE_U64("capability", VFS_CAP_FLAGS_MASK),
|
||||
AA_FS_DIR("rlimit", aa_fs_entry_rlimit),
|
||||
{ }
|
||||
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
|
||||
index 4b7e189..17734f9 100644
|
||||
--- a/security/apparmor/include/audit.h
|
||||
+++ b/security/apparmor/include/audit.h
|
||||
@@ -127,6 +127,10 @@ struct apparmor_audit_data {
|
||||
u32 denied;
|
||||
uid_t ouid;
|
||||
} fs;
|
||||
+ struct {
|
||||
+ int type, protocol;
|
||||
+ struct sock *sk;
|
||||
+ } net;
|
||||
};
|
||||
};
|
||||
|
||||
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
|
||||
new file mode 100644
|
||||
index 0000000..cb8a121
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/include/net.h
|
||||
@@ -0,0 +1,44 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation definitions.
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#ifndef __AA_NET_H
|
||||
+#define __AA_NET_H
|
||||
+
|
||||
+#include <net/sock.h>
|
||||
+
|
||||
+#include "apparmorfs.h"
|
||||
+
|
||||
+/* struct aa_net - network confinement data
|
||||
+ * @allowed: basic network families permissions
|
||||
+ * @audit_network: which network permissions to force audit
|
||||
+ * @quiet_network: which network permissions to quiet rejects
|
||||
+ */
|
||||
+struct aa_net {
|
||||
+ u16 allow[AF_MAX];
|
||||
+ u16 audit[AF_MAX];
|
||||
+ u16 quiet[AF_MAX];
|
||||
+};
|
||||
+
|
||||
+extern struct aa_fs_entry aa_fs_entry_network[];
|
||||
+
|
||||
+extern int aa_net_perm(int op, struct aa_profile *profile, u16 family,
|
||||
+ int type, int protocol, struct sock *sk);
|
||||
+extern int aa_revalidate_sk(int op, struct sock *sk);
|
||||
+
|
||||
+static inline void aa_free_net_rules(struct aa_net *new)
|
||||
+{
|
||||
+ /* NOP */
|
||||
+}
|
||||
+
|
||||
+#endif /* __AA_NET_H */
|
||||
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h
|
||||
index bda4569..eb13a73 100644
|
||||
--- a/security/apparmor/include/policy.h
|
||||
+++ b/security/apparmor/include/policy.h
|
||||
@@ -27,6 +27,7 @@
|
||||
#include "capability.h"
|
||||
#include "domain.h"
|
||||
#include "file.h"
|
||||
+#include "net.h"
|
||||
#include "resource.h"
|
||||
|
||||
extern const char *const profile_mode_names[];
|
||||
@@ -157,6 +158,7 @@ struct aa_policydb {
|
||||
* @policy: general match rules governing policy
|
||||
* @file: The set of rules governing basic file access and domain transitions
|
||||
* @caps: capabilities for the profile
|
||||
+ * @net: network controls for the profile
|
||||
* @rlimits: rlimits for the profile
|
||||
*
|
||||
* The AppArmor profile contains the basic confinement data. Each profile
|
||||
@@ -194,6 +196,7 @@ struct aa_profile {
|
||||
struct aa_policydb policy;
|
||||
struct aa_file_rules file;
|
||||
struct aa_caps caps;
|
||||
+ struct aa_net net;
|
||||
struct aa_rlimit rlimits;
|
||||
};
|
||||
|
||||
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
|
||||
index 8ea39aa..f628734 100644
|
||||
--- a/security/apparmor/lsm.c
|
||||
+++ b/security/apparmor/lsm.c
|
||||
@@ -32,6 +32,7 @@
|
||||
#include "include/context.h"
|
||||
#include "include/file.h"
|
||||
#include "include/ipc.h"
|
||||
+#include "include/net.h"
|
||||
#include "include/path.h"
|
||||
#include "include/policy.h"
|
||||
#include "include/procattr.h"
|
||||
@@ -614,6 +615,104 @@ static int apparmor_task_setrlimit(struct task_struct *task,
|
||||
return error;
|
||||
}
|
||||
|
||||
+static int apparmor_socket_create(int family, int type, int protocol, int kern)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ if (kern)
|
||||
+ return 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_net_perm(OP_CREATE, profile, family, type, protocol,
|
||||
+ NULL);
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_bind(struct socket *sock,
|
||||
+ struct sockaddr *address, int addrlen)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_BIND, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_connect(struct socket *sock,
|
||||
+ struct sockaddr *address, int addrlen)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_CONNECT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_listen(struct socket *sock, int backlog)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_LISTEN, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_accept(struct socket *sock, struct socket *newsock)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_ACCEPT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_sendmsg(struct socket *sock,
|
||||
+ struct msghdr *msg, int size)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_SENDMSG, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_recvmsg(struct socket *sock,
|
||||
+ struct msghdr *msg, int size, int flags)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_RECVMSG, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_getsockname(struct socket *sock)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_GETSOCKNAME, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_getpeername(struct socket *sock)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_GETPEERNAME, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_getsockopt(struct socket *sock, int level,
|
||||
+ int optname)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_GETSOCKOPT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_setsockopt(struct socket *sock, int level,
|
||||
+ int optname)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_SETSOCKOPT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_shutdown(struct socket *sock, int how)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_SOCK_SHUTDOWN, sk);
|
||||
+}
|
||||
+
|
||||
static struct security_operations apparmor_ops = {
|
||||
.name = "apparmor",
|
||||
|
||||
@@ -646,6 +745,19 @@ static struct security_operations apparmor_ops = {
|
||||
.getprocattr = apparmor_getprocattr,
|
||||
.setprocattr = apparmor_setprocattr,
|
||||
|
||||
+ .socket_create = apparmor_socket_create,
|
||||
+ .socket_bind = apparmor_socket_bind,
|
||||
+ .socket_connect = apparmor_socket_connect,
|
||||
+ .socket_listen = apparmor_socket_listen,
|
||||
+ .socket_accept = apparmor_socket_accept,
|
||||
+ .socket_sendmsg = apparmor_socket_sendmsg,
|
||||
+ .socket_recvmsg = apparmor_socket_recvmsg,
|
||||
+ .socket_getsockname = apparmor_socket_getsockname,
|
||||
+ .socket_getpeername = apparmor_socket_getpeername,
|
||||
+ .socket_getsockopt = apparmor_socket_getsockopt,
|
||||
+ .socket_setsockopt = apparmor_socket_setsockopt,
|
||||
+ .socket_shutdown = apparmor_socket_shutdown,
|
||||
+
|
||||
.cred_alloc_blank = apparmor_cred_alloc_blank,
|
||||
.cred_free = apparmor_cred_free,
|
||||
.cred_prepare = apparmor_cred_prepare,
|
||||
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
|
||||
new file mode 100644
|
||||
index 0000000..003dd18
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -0,0 +1,162 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#include "include/apparmor.h"
|
||||
+#include "include/audit.h"
|
||||
+#include "include/context.h"
|
||||
+#include "include/net.h"
|
||||
+#include "include/policy.h"
|
||||
+
|
||||
+#include "net_names.h"
|
||||
+
|
||||
+struct aa_fs_entry aa_fs_entry_network[] = {
|
||||
+ AA_FS_FILE_STRING("af_mask", AA_FS_AF_MASK),
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
+/* audit callback for net specific fields */
|
||||
+static void audit_cb(struct audit_buffer *ab, void *va)
|
||||
+{
|
||||
+ struct common_audit_data *sa = va;
|
||||
+
|
||||
+ audit_log_format(ab, " family=");
|
||||
+ if (address_family_names[sa->u.net->family]) {
|
||||
+ audit_log_string(ab, address_family_names[sa->u.net->family]);
|
||||
+ } else {
|
||||
+ audit_log_format(ab, "\"unknown(%d)\"", sa->u.net->family);
|
||||
+ }
|
||||
+ audit_log_format(ab, " sock_type=");
|
||||
+ if (sock_type_names[sa->aad->net.type]) {
|
||||
+ audit_log_string(ab, sock_type_names[sa->aad->net.type]);
|
||||
+ } else {
|
||||
+ audit_log_format(ab, "\"unknown(%d)\"", sa->aad->net.type);
|
||||
+ }
|
||||
+ audit_log_format(ab, " protocol=%d", sa->aad->net.protocol);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * audit_net - audit network access
|
||||
+ * @profile: profile being enforced (NOT NULL)
|
||||
+ * @op: operation being checked
|
||||
+ * @family: network family
|
||||
+ * @type: network type
|
||||
+ * @protocol: network protocol
|
||||
+ * @sk: socket auditing is being applied to
|
||||
+ * @error: error code for failure else 0
|
||||
+ *
|
||||
+ * Returns: %0 or sa->error else other errorcode on failure
|
||||
+ */
|
||||
+static int audit_net(struct aa_profile *profile, int op, u16 family, int type,
|
||||
+ int protocol, struct sock *sk, int error)
|
||||
+{
|
||||
+ int audit_type = AUDIT_APPARMOR_AUTO;
|
||||
+ struct common_audit_data sa;
|
||||
+ struct apparmor_audit_data aad = { };
|
||||
+ struct lsm_network_audit net = { };
|
||||
+ if (sk) {
|
||||
+ sa.type = LSM_AUDIT_DATA_NET;
|
||||
+ } else {
|
||||
+ sa.type = LSM_AUDIT_DATA_NONE;
|
||||
+ }
|
||||
+ /* todo fill in socket addr info */
|
||||
+ sa.aad = &aad;
|
||||
+ sa.u.net = &net;
|
||||
+ sa.aad->op = op,
|
||||
+ sa.u.net->family = family;
|
||||
+ sa.u.net->sk = sk;
|
||||
+ sa.aad->net.type = type;
|
||||
+ sa.aad->net.protocol = protocol;
|
||||
+ sa.aad->error = error;
|
||||
+
|
||||
+ if (likely(!sa.aad->error)) {
|
||||
+ u16 audit_mask = profile->net.audit[sa.u.net->family];
|
||||
+ if (likely((AUDIT_MODE(profile) != AUDIT_ALL) &&
|
||||
+ !(1 << sa.aad->net.type & audit_mask)))
|
||||
+ return 0;
|
||||
+ audit_type = AUDIT_APPARMOR_AUDIT;
|
||||
+ } else {
|
||||
+ u16 quiet_mask = profile->net.quiet[sa.u.net->family];
|
||||
+ u16 kill_mask = 0;
|
||||
+ u16 denied = (1 << sa.aad->net.type) & ~quiet_mask;
|
||||
+
|
||||
+ if (denied & kill_mask)
|
||||
+ audit_type = AUDIT_APPARMOR_KILL;
|
||||
+
|
||||
+ if ((denied & quiet_mask) &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_NOQUIET &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_ALL)
|
||||
+ return COMPLAIN_MODE(profile) ? 0 : sa.aad->error;
|
||||
+ }
|
||||
+
|
||||
+ return aa_audit(audit_type, profile, GFP_KERNEL, &sa, audit_cb);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * aa_net_perm - very course network access check
|
||||
+ * @op: operation being checked
|
||||
+ * @profile: profile being enforced (NOT NULL)
|
||||
+ * @family: network family
|
||||
+ * @type: network type
|
||||
+ * @protocol: network protocol
|
||||
+ *
|
||||
+ * Returns: %0 else error if permission denied
|
||||
+ */
|
||||
+int aa_net_perm(int op, struct aa_profile *profile, u16 family, int type,
|
||||
+ int protocol, struct sock *sk)
|
||||
+{
|
||||
+ u16 family_mask;
|
||||
+ int error;
|
||||
+
|
||||
+ if ((family < 0) || (family >= AF_MAX))
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ if ((type < 0) || (type >= SOCK_MAX))
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ /* unix domain and netlink sockets are handled by ipc */
|
||||
+ if (family == AF_UNIX || family == AF_NETLINK)
|
||||
+ return 0;
|
||||
+
|
||||
+ family_mask = profile->net.allow[family];
|
||||
+
|
||||
+ error = (family_mask & (1 << type)) ? 0 : -EACCES;
|
||||
+
|
||||
+ return audit_net(profile, op, family, type, protocol, sk, error);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * aa_revalidate_sk - Revalidate access to a sock
|
||||
+ * @op: operation being checked
|
||||
+ * @sk: sock being revalidated (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: %0 else error if permission denied
|
||||
+ */
|
||||
+int aa_revalidate_sk(int op, struct sock *sk)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ /* aa_revalidate_sk should not be called from interrupt context
|
||||
+ * don't mediate these calls as they are not task related
|
||||
+ */
|
||||
+ if (in_interrupt())
|
||||
+ return 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_net_perm(op, profile, sk->sk_family, sk->sk_type,
|
||||
+ sk->sk_protocol, sk);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
|
||||
index cf5fd22..27c8161 100644
|
||||
--- a/security/apparmor/policy.c
|
||||
+++ b/security/apparmor/policy.c
|
||||
@@ -745,6 +745,7 @@ static void free_profile(struct aa_profile *profile)
|
||||
|
||||
aa_free_file_rules(&profile->file);
|
||||
aa_free_cap_rules(&profile->caps);
|
||||
+ aa_free_net_rules(&profile->net);
|
||||
aa_free_rlimit_rules(&profile->rlimits);
|
||||
|
||||
aa_free_sid(profile->sid);
|
||||
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
|
||||
index 329b1fd..1b90dfa 100644
|
||||
--- a/security/apparmor/policy_unpack.c
|
||||
+++ b/security/apparmor/policy_unpack.c
|
||||
@@ -193,6 +193,19 @@ fail:
|
||||
return 0;
|
||||
}
|
||||
|
||||
+static bool unpack_u16(struct aa_ext *e, u16 *data, const char *name)
|
||||
+{
|
||||
+ if (unpack_nameX(e, AA_U16, name)) {
|
||||
+ if (!inbounds(e, sizeof(u16)))
|
||||
+ return 0;
|
||||
+ if (data)
|
||||
+ *data = le16_to_cpu(get_unaligned((u16 *) e->pos));
|
||||
+ e->pos += sizeof(u16);
|
||||
+ return 1;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
static bool unpack_u32(struct aa_ext *e, u32 *data, const char *name)
|
||||
{
|
||||
if (unpack_nameX(e, AA_U32, name)) {
|
||||
@@ -471,6 +484,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e)
|
||||
{
|
||||
struct aa_profile *profile = NULL;
|
||||
const char *name = NULL;
|
||||
+ size_t size = 0;
|
||||
int i, error = -EPROTO;
|
||||
kernel_cap_t tmpcap;
|
||||
u32 tmp;
|
||||
@@ -564,6 +578,38 @@ static struct aa_profile *unpack_profile(struct aa_ext *e)
|
||||
if (!unpack_rlimits(e, profile))
|
||||
goto fail;
|
||||
|
||||
+ size = unpack_array(e, "net_allowed_af");
|
||||
+ if (size) {
|
||||
+
|
||||
+ for (i = 0; i < size; i++) {
|
||||
+ /* discard extraneous rules that this kernel will
|
||||
+ * never request
|
||||
+ */
|
||||
+ if (i >= AF_MAX) {
|
||||
+ u16 tmp;
|
||||
+ if (!unpack_u16(e, &tmp, NULL) ||
|
||||
+ !unpack_u16(e, &tmp, NULL) ||
|
||||
+ !unpack_u16(e, &tmp, NULL))
|
||||
+ goto fail;
|
||||
+ continue;
|
||||
+ }
|
||||
+ if (!unpack_u16(e, &profile->net.allow[i], NULL))
|
||||
+ goto fail;
|
||||
+ if (!unpack_u16(e, &profile->net.audit[i], NULL))
|
||||
+ goto fail;
|
||||
+ if (!unpack_u16(e, &profile->net.quiet[i], NULL))
|
||||
+ goto fail;
|
||||
+ }
|
||||
+ if (!unpack_nameX(e, AA_ARRAYEND, NULL))
|
||||
+ goto fail;
|
||||
+ }
|
||||
+ /*
|
||||
+ * allow unix domain and netlink sockets they are handled
|
||||
+ * by IPC
|
||||
+ */
|
||||
+ profile->net.allow[AF_UNIX] = 0xffff;
|
||||
+ profile->net.allow[AF_NETLINK] = 0xffff;
|
||||
+
|
||||
if (unpack_nameX(e, AA_STRUCT, "policydb")) {
|
||||
/* generic policy dfa - optional and may be NULL */
|
||||
profile->policy.dfa = unpack_dfa(e);
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,38 @@
|
||||
From 4b25e62dc1e8d81d80f778e1e57b7c38ba4fd901 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Fri, 29 Jun 2012 17:34:00 -0700
|
||||
Subject: [PATCH 3/6] apparmor: Fix quieting of audit messages for network
|
||||
mediation
|
||||
|
||||
If a profile specified a quieting of network denials for a given rule by
|
||||
either the quiet or deny rule qualifiers, the resultant quiet mask for
|
||||
denied requests was applied incorrectly, resulting in two potential bugs.
|
||||
1. The misapplied quiet mask would prevent denials from being correctly
|
||||
tested against the kill mask/mode. Thus network access requests that
|
||||
should have resulted in the application being killed did not.
|
||||
|
||||
2. The actual quieting of the denied network request was not being applied.
|
||||
This would result in network rejections always being logged even when
|
||||
they had been specifically marked as quieted.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/net.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
|
||||
index 003dd18..6e6e5c9 100644
|
||||
--- a/security/apparmor/net.c
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -88,7 +88,7 @@ static int audit_net(struct aa_profile *profile, int op, u16 family, int type,
|
||||
} else {
|
||||
u16 quiet_mask = profile->net.quiet[sa.u.net->family];
|
||||
u16 kill_mask = 0;
|
||||
- u16 denied = (1 << sa.aad->net.type) & ~quiet_mask;
|
||||
+ u16 denied = (1 << sa.aad->net.type);
|
||||
|
||||
if (denied & kill_mask)
|
||||
audit_type = AUDIT_APPARMOR_KILL;
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,98 @@
|
||||
From e2d745442133f625e715f713c0441f0f2a7ea6ad Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Fri, 29 Jun 2012 17:34:01 -0700
|
||||
Subject: [PATCH 4/6] apparmor: Ensure apparmor does not mediate kernel based
|
||||
sockets
|
||||
|
||||
Currently apparmor makes the assumption that kernel sockets are unmediated
|
||||
because mediation is only done against tasks that have a profile attached.
|
||||
Ensure we never get in a situation where a kernel socket is being mediated
|
||||
by tagging the sk_security field for kernel sockets.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/include/net.h | 2 ++
|
||||
security/apparmor/lsm.c | 18 ++++++++++++++++++
|
||||
security/apparmor/net.c | 3 +++
|
||||
3 files changed, 23 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
|
||||
index cb8a121..bc8198b 100644
|
||||
--- a/security/apparmor/include/net.h
|
||||
+++ b/security/apparmor/include/net.h
|
||||
@@ -19,6 +19,8 @@
|
||||
|
||||
#include "apparmorfs.h"
|
||||
|
||||
+#define AA_SOCK_KERN 0xAA
|
||||
+
|
||||
/* struct aa_net - network confinement data
|
||||
* @allowed: basic network families permissions
|
||||
* @audit_network: which network permissions to force audit
|
||||
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
|
||||
index f628734..a172d01 100644
|
||||
--- a/security/apparmor/lsm.c
|
||||
+++ b/security/apparmor/lsm.c
|
||||
@@ -630,6 +630,16 @@ static int apparmor_socket_create(int family, int type, int protocol, int kern)
|
||||
return error;
|
||||
}
|
||||
|
||||
+static int apparmor_socket_post_create(struct socket *sock, int family,
|
||||
+ int type, int protocol, int kern)
|
||||
+{
|
||||
+ if (kern)
|
||||
+ /* tag kernel sockets so we don't mediate them later */
|
||||
+ sock->sk->sk_security = (void *) AA_SOCK_KERN;
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
static int apparmor_socket_bind(struct socket *sock,
|
||||
struct sockaddr *address, int addrlen)
|
||||
{
|
||||
@@ -713,6 +723,12 @@ static int apparmor_socket_shutdown(struct socket *sock, int how)
|
||||
return aa_revalidate_sk(OP_SOCK_SHUTDOWN, sk);
|
||||
}
|
||||
|
||||
+static void apparmor_sk_clone_security(const struct sock *sk,
|
||||
+ struct sock *newsk)
|
||||
+{
|
||||
+ newsk->sk_security = sk->sk_security;
|
||||
+}
|
||||
+
|
||||
static struct security_operations apparmor_ops = {
|
||||
.name = "apparmor",
|
||||
|
||||
@@ -746,6 +762,7 @@ static struct security_operations apparmor_ops = {
|
||||
.setprocattr = apparmor_setprocattr,
|
||||
|
||||
.socket_create = apparmor_socket_create,
|
||||
+ .socket_post_create = apparmor_socket_post_create,
|
||||
.socket_bind = apparmor_socket_bind,
|
||||
.socket_connect = apparmor_socket_connect,
|
||||
.socket_listen = apparmor_socket_listen,
|
||||
@@ -757,6 +774,7 @@ static struct security_operations apparmor_ops = {
|
||||
.socket_getsockopt = apparmor_socket_getsockopt,
|
||||
.socket_setsockopt = apparmor_socket_setsockopt,
|
||||
.socket_shutdown = apparmor_socket_shutdown,
|
||||
+ .sk_clone_security = apparmor_sk_clone_security,
|
||||
|
||||
.cred_alloc_blank = apparmor_cred_alloc_blank,
|
||||
.cred_free = apparmor_cred_free,
|
||||
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
|
||||
index 6e6e5c9..baa4df1 100644
|
||||
--- a/security/apparmor/net.c
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -153,6 +153,9 @@ int aa_revalidate_sk(int op, struct sock *sk)
|
||||
if (in_interrupt())
|
||||
return 0;
|
||||
|
||||
+ if (sk->sk_security == (void *) AA_SOCK_KERN)
|
||||
+ return 0;
|
||||
+
|
||||
profile = __aa_current_profile();
|
||||
if (!unconfined(profile))
|
||||
error = aa_net_perm(op, profile, sk->sk_family, sk->sk_type,
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,957 @@
|
||||
From 272431fc90fab50ea9593d969d3ab8d98f03627c Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 16 May 2012 10:58:05 -0700
|
||||
Subject: [PATCH 5/6] UBUNTU: SAUCE: apparmor: Add the ability to mediate
|
||||
mount
|
||||
|
||||
Add the ability for apparmor to do mediation of mount operations. Mount
|
||||
rules require an updated apparmor_parser (2.8 series) for policy compilation.
|
||||
|
||||
The basic form of the rules are.
|
||||
|
||||
[audit] [deny] mount [conds]* [device] [ -> [conds] path],
|
||||
[audit] [deny] remount [conds]* [path],
|
||||
[audit] [deny] umount [conds]* [path],
|
||||
[audit] [deny] pivotroot [oldroot=<value>] <path>
|
||||
|
||||
remount is just a short cut for mount options=remount
|
||||
|
||||
where [conds] can be
|
||||
fstype=<expr>
|
||||
options=<expr>
|
||||
|
||||
Example mount commands
|
||||
mount, # allow all mounts, but not umount or pivotroot
|
||||
|
||||
mount fstype=procfs, # allow mounting procfs anywhere
|
||||
|
||||
mount options=(bind, ro) /foo -> /bar, # readonly bind mount
|
||||
|
||||
mount /dev/sda -> /mnt,
|
||||
|
||||
mount /dev/sd** -> /mnt/**,
|
||||
|
||||
mount fstype=overlayfs options=(rw,upperdir=/tmp/upper/,lowerdir=/) -> /mnt/
|
||||
|
||||
umount,
|
||||
|
||||
umount /m*,
|
||||
|
||||
See the apparmor userspace for full documentation
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
Acked-by: Kees Cook <kees@ubuntu.com>
|
||||
---
|
||||
security/apparmor/Makefile | 2 +-
|
||||
security/apparmor/apparmorfs.c | 13 +
|
||||
security/apparmor/audit.c | 4 +
|
||||
security/apparmor/domain.c | 2 +-
|
||||
security/apparmor/include/apparmor.h | 3 +-
|
||||
security/apparmor/include/audit.h | 11 +
|
||||
security/apparmor/include/domain.h | 2 +
|
||||
security/apparmor/include/mount.h | 54 +++
|
||||
security/apparmor/lsm.c | 59 ++++
|
||||
security/apparmor/mount.c | 620 ++++++++++++++++++++++++++++++++++
|
||||
10 files changed, 767 insertions(+), 3 deletions(-)
|
||||
create mode 100644 security/apparmor/include/mount.h
|
||||
create mode 100644 security/apparmor/mount.c
|
||||
|
||||
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
|
||||
index 19daa85..63e0a4c 100644
|
||||
--- a/security/apparmor/Makefile
|
||||
+++ b/security/apparmor/Makefile
|
||||
@@ -4,7 +4,7 @@ obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
|
||||
|
||||
apparmor-y := apparmorfs.o audit.o capability.o context.o ipc.o lib.o match.o \
|
||||
path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
|
||||
- resource.o sid.o file.o net.o
|
||||
+ resource.o sid.o file.o net.o mount.o
|
||||
|
||||
clean-files := capability_names.h rlim_names.h net_names.h
|
||||
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 114fb23..ee77ec9 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -426,10 +426,23 @@ static struct aa_fs_entry aa_fs_entry_domain[] = {
|
||||
{ }
|
||||
};
|
||||
|
||||
+static struct aa_fs_entry aa_fs_entry_mount[] = {
|
||||
+ AA_FS_FILE_STRING("mask", "mount umount"),
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
+static struct aa_fs_entry aa_fs_entry_namespaces[] = {
|
||||
+ AA_FS_FILE_BOOLEAN("profile", 1),
|
||||
+ AA_FS_FILE_BOOLEAN("pivot_root", 1),
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
static struct aa_fs_entry aa_fs_entry_features[] = {
|
||||
AA_FS_DIR("domain", aa_fs_entry_domain),
|
||||
AA_FS_DIR("file", aa_fs_entry_file),
|
||||
AA_FS_DIR("network", aa_fs_entry_network),
|
||||
+ AA_FS_DIR("mount", aa_fs_entry_mount),
|
||||
+ AA_FS_DIR("namespaces", aa_fs_entry_namespaces),
|
||||
AA_FS_FILE_U64("capability", VFS_CAP_FLAGS_MASK),
|
||||
AA_FS_DIR("rlimit", aa_fs_entry_rlimit),
|
||||
{ }
|
||||
diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
|
||||
index 3ae28db..e267963 100644
|
||||
--- a/security/apparmor/audit.c
|
||||
+++ b/security/apparmor/audit.c
|
||||
@@ -44,6 +44,10 @@ const char *const op_table[] = {
|
||||
"file_mmap",
|
||||
"file_mprotect",
|
||||
|
||||
+ "pivotroot",
|
||||
+ "mount",
|
||||
+ "umount",
|
||||
+
|
||||
"create",
|
||||
"post_create",
|
||||
"bind",
|
||||
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
|
||||
index b81ea10..afa8671 100644
|
||||
--- a/security/apparmor/domain.c
|
||||
+++ b/security/apparmor/domain.c
|
||||
@@ -242,7 +242,7 @@ static const char *next_name(int xtype, const char *name)
|
||||
*
|
||||
* Returns: refcounted profile, or NULL on failure (MAYBE NULL)
|
||||
*/
|
||||
-static struct aa_profile *x_table_lookup(struct aa_profile *profile, u32 xindex)
|
||||
+struct aa_profile *x_table_lookup(struct aa_profile *profile, u32 xindex)
|
||||
{
|
||||
struct aa_profile *new_profile = NULL;
|
||||
struct aa_namespace *ns = profile->ns;
|
||||
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
|
||||
index 40aedd9..e243d96 100644
|
||||
--- a/security/apparmor/include/apparmor.h
|
||||
+++ b/security/apparmor/include/apparmor.h
|
||||
@@ -29,8 +29,9 @@
|
||||
#define AA_CLASS_NET 4
|
||||
#define AA_CLASS_RLIMITS 5
|
||||
#define AA_CLASS_DOMAIN 6
|
||||
+#define AA_CLASS_MOUNT 7
|
||||
|
||||
-#define AA_CLASS_LAST AA_CLASS_DOMAIN
|
||||
+#define AA_CLASS_LAST AA_CLASS_MOUNT
|
||||
|
||||
/* Control parameters settable through module/boot flags */
|
||||
extern enum audit_mode aa_g_audit;
|
||||
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
|
||||
index 17734f9..66a738c 100644
|
||||
--- a/security/apparmor/include/audit.h
|
||||
+++ b/security/apparmor/include/audit.h
|
||||
@@ -73,6 +73,10 @@ enum aa_ops {
|
||||
OP_FMMAP,
|
||||
OP_FMPROT,
|
||||
|
||||
+ OP_PIVOTROOT,
|
||||
+ OP_MOUNT,
|
||||
+ OP_UMOUNT,
|
||||
+
|
||||
OP_CREATE,
|
||||
OP_POST_CREATE,
|
||||
OP_BIND,
|
||||
@@ -122,6 +126,13 @@ struct apparmor_audit_data {
|
||||
unsigned long max;
|
||||
} rlim;
|
||||
struct {
|
||||
+ const char *src_name;
|
||||
+ const char *type;
|
||||
+ const char *trans;
|
||||
+ const char *data;
|
||||
+ unsigned long flags;
|
||||
+ } mnt;
|
||||
+ struct {
|
||||
const char *target;
|
||||
u32 request;
|
||||
u32 denied;
|
||||
diff --git a/security/apparmor/include/domain.h b/security/apparmor/include/domain.h
|
||||
index de04464..a3f70c5 100644
|
||||
--- a/security/apparmor/include/domain.h
|
||||
+++ b/security/apparmor/include/domain.h
|
||||
@@ -23,6 +23,8 @@ struct aa_domain {
|
||||
char **table;
|
||||
};
|
||||
|
||||
+struct aa_profile *x_table_lookup(struct aa_profile *profile, u32 xindex);
|
||||
+
|
||||
int apparmor_bprm_set_creds(struct linux_binprm *bprm);
|
||||
int apparmor_bprm_secureexec(struct linux_binprm *bprm);
|
||||
void apparmor_bprm_committing_creds(struct linux_binprm *bprm);
|
||||
diff --git a/security/apparmor/include/mount.h b/security/apparmor/include/mount.h
|
||||
new file mode 100644
|
||||
index 0000000..bc17a53
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/include/mount.h
|
||||
@@ -0,0 +1,54 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor file mediation function definitions.
|
||||
+ *
|
||||
+ * Copyright 2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#ifndef __AA_MOUNT_H
|
||||
+#define __AA_MOUNT_H
|
||||
+
|
||||
+#include <linux/fs.h>
|
||||
+#include <linux/path.h>
|
||||
+
|
||||
+#include "domain.h"
|
||||
+#include "policy.h"
|
||||
+
|
||||
+/* mount perms */
|
||||
+#define AA_MAY_PIVOTROOT 0x01
|
||||
+#define AA_MAY_MOUNT 0x02
|
||||
+#define AA_MAY_UMOUNT 0x04
|
||||
+#define AA_AUDIT_DATA 0x40
|
||||
+#define AA_CONT_MATCH 0x40
|
||||
+
|
||||
+#define AA_MS_IGNORE_MASK (MS_KERNMOUNT | MS_NOSEC | MS_ACTIVE | MS_BORN)
|
||||
+
|
||||
+int aa_remount(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags, void *data);
|
||||
+
|
||||
+int aa_bind_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *old_name, unsigned long flags);
|
||||
+
|
||||
+
|
||||
+int aa_mount_change_type(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags);
|
||||
+
|
||||
+int aa_move_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *old_name);
|
||||
+
|
||||
+int aa_new_mount(struct aa_profile *profile, const char *dev_name,
|
||||
+ struct path *path, const char *type, unsigned long flags,
|
||||
+ void *data);
|
||||
+
|
||||
+int aa_umount(struct aa_profile *profile, struct vfsmount *mnt, int flags);
|
||||
+
|
||||
+int aa_pivotroot(struct aa_profile *profile, struct path *old_path,
|
||||
+ struct path *new_path);
|
||||
+
|
||||
+#endif /* __AA_MOUNT_H */
|
||||
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
|
||||
index a172d01..5da8af9 100644
|
||||
--- a/security/apparmor/lsm.c
|
||||
+++ b/security/apparmor/lsm.c
|
||||
@@ -36,6 +36,7 @@
|
||||
#include "include/path.h"
|
||||
#include "include/policy.h"
|
||||
#include "include/procattr.h"
|
||||
+#include "include/mount.h"
|
||||
|
||||
/* Flag indicating whether initialization completed */
|
||||
int apparmor_initialized __initdata;
|
||||
@@ -504,6 +505,60 @@ static int apparmor_file_mprotect(struct vm_area_struct *vma,
|
||||
!(vma->vm_flags & VM_SHARED) ? MAP_PRIVATE : 0);
|
||||
}
|
||||
|
||||
+static int apparmor_sb_mount(char *dev_name, struct path *path, char *type,
|
||||
+ unsigned long flags, void *data)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ /* Discard magic */
|
||||
+ if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
|
||||
+ flags &= ~MS_MGC_MSK;
|
||||
+
|
||||
+ flags &= ~AA_MS_IGNORE_MASK;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile)) {
|
||||
+ if (flags & MS_REMOUNT)
|
||||
+ error = aa_remount(profile, path, flags, data);
|
||||
+ else if (flags & MS_BIND)
|
||||
+ error = aa_bind_mount(profile, path, dev_name, flags);
|
||||
+ else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE |
|
||||
+ MS_UNBINDABLE))
|
||||
+ error = aa_mount_change_type(profile, path, flags);
|
||||
+ else if (flags & MS_MOVE)
|
||||
+ error = aa_move_mount(profile, path, dev_name);
|
||||
+ else
|
||||
+ error = aa_new_mount(profile, dev_name, path, type,
|
||||
+ flags, data);
|
||||
+ }
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+static int apparmor_sb_umount(struct vfsmount *mnt, int flags)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_umount(profile, mnt, flags);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+static int apparmor_sb_pivotroot(struct path *old_path, struct path *new_path)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_pivotroot(profile, old_path, new_path);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
static int apparmor_getprocattr(struct task_struct *task, char *name,
|
||||
char **value)
|
||||
{
|
||||
@@ -737,6 +792,10 @@ static struct security_operations apparmor_ops = {
|
||||
.capget = apparmor_capget,
|
||||
.capable = apparmor_capable,
|
||||
|
||||
+ .sb_mount = apparmor_sb_mount,
|
||||
+ .sb_umount = apparmor_sb_umount,
|
||||
+ .sb_pivotroot = apparmor_sb_pivotroot,
|
||||
+
|
||||
.path_link = apparmor_path_link,
|
||||
.path_unlink = apparmor_path_unlink,
|
||||
.path_symlink = apparmor_path_symlink,
|
||||
diff --git a/security/apparmor/mount.c b/security/apparmor/mount.c
|
||||
new file mode 100644
|
||||
index 0000000..478aa4d
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/mount.c
|
||||
@@ -0,0 +1,620 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor mediation of files
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#include <linux/fs.h>
|
||||
+#include <linux/mount.h>
|
||||
+#include <linux/namei.h>
|
||||
+
|
||||
+#include "include/apparmor.h"
|
||||
+#include "include/audit.h"
|
||||
+#include "include/context.h"
|
||||
+#include "include/domain.h"
|
||||
+#include "include/file.h"
|
||||
+#include "include/match.h"
|
||||
+#include "include/mount.h"
|
||||
+#include "include/path.h"
|
||||
+#include "include/policy.h"
|
||||
+
|
||||
+
|
||||
+static void audit_mnt_flags(struct audit_buffer *ab, unsigned long flags)
|
||||
+{
|
||||
+ if (flags & MS_RDONLY)
|
||||
+ audit_log_format(ab, "ro");
|
||||
+ else
|
||||
+ audit_log_format(ab, "rw");
|
||||
+ if (flags & MS_NOSUID)
|
||||
+ audit_log_format(ab, ", nosuid");
|
||||
+ if (flags & MS_NODEV)
|
||||
+ audit_log_format(ab, ", nodev");
|
||||
+ if (flags & MS_NOEXEC)
|
||||
+ audit_log_format(ab, ", noexec");
|
||||
+ if (flags & MS_SYNCHRONOUS)
|
||||
+ audit_log_format(ab, ", sync");
|
||||
+ if (flags & MS_REMOUNT)
|
||||
+ audit_log_format(ab, ", remount");
|
||||
+ if (flags & MS_MANDLOCK)
|
||||
+ audit_log_format(ab, ", mand");
|
||||
+ if (flags & MS_DIRSYNC)
|
||||
+ audit_log_format(ab, ", dirsync");
|
||||
+ if (flags & MS_NOATIME)
|
||||
+ audit_log_format(ab, ", noatime");
|
||||
+ if (flags & MS_NODIRATIME)
|
||||
+ audit_log_format(ab, ", nodiratime");
|
||||
+ if (flags & MS_BIND)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rbind" : ", bind");
|
||||
+ if (flags & MS_MOVE)
|
||||
+ audit_log_format(ab, ", move");
|
||||
+ if (flags & MS_SILENT)
|
||||
+ audit_log_format(ab, ", silent");
|
||||
+ if (flags & MS_POSIXACL)
|
||||
+ audit_log_format(ab, ", acl");
|
||||
+ if (flags & MS_UNBINDABLE)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", runbindable" :
|
||||
+ ", unbindable");
|
||||
+ if (flags & MS_PRIVATE)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rprivate" :
|
||||
+ ", private");
|
||||
+ if (flags & MS_SLAVE)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rslave" :
|
||||
+ ", slave");
|
||||
+ if (flags & MS_SHARED)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rshared" :
|
||||
+ ", shared");
|
||||
+ if (flags & MS_RELATIME)
|
||||
+ audit_log_format(ab, ", relatime");
|
||||
+ if (flags & MS_I_VERSION)
|
||||
+ audit_log_format(ab, ", iversion");
|
||||
+ if (flags & MS_STRICTATIME)
|
||||
+ audit_log_format(ab, ", strictatime");
|
||||
+ if (flags & MS_NOUSER)
|
||||
+ audit_log_format(ab, ", nouser");
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * audit_cb - call back for mount specific audit fields
|
||||
+ * @ab: audit_buffer (NOT NULL)
|
||||
+ * @va: audit struct to audit values of (NOT NULL)
|
||||
+ */
|
||||
+static void audit_cb(struct audit_buffer *ab, void *va)
|
||||
+{
|
||||
+ struct common_audit_data *sa = va;
|
||||
+
|
||||
+ if (sa->aad->mnt.type) {
|
||||
+ audit_log_format(ab, " fstype=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.type);
|
||||
+ }
|
||||
+ if (sa->aad->mnt.src_name) {
|
||||
+ audit_log_format(ab, " srcname=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.src_name);
|
||||
+ }
|
||||
+ if (sa->aad->mnt.trans) {
|
||||
+ audit_log_format(ab, " trans=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.trans);
|
||||
+ }
|
||||
+ if (sa->aad->mnt.flags || sa->aad->op == OP_MOUNT) {
|
||||
+ audit_log_format(ab, " flags=\"");
|
||||
+ audit_mnt_flags(ab, sa->aad->mnt.flags);
|
||||
+ audit_log_format(ab, "\"");
|
||||
+ }
|
||||
+ if (sa->aad->mnt.data) {
|
||||
+ audit_log_format(ab, " options=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.data);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * audit_mount - handle the auditing of mount operations
|
||||
+ * @profile: the profile being enforced (NOT NULL)
|
||||
+ * @gfp: allocation flags
|
||||
+ * @op: operation being mediated (NOT NULL)
|
||||
+ * @name: name of object being mediated (MAYBE NULL)
|
||||
+ * @src_name: src_name of object being mediated (MAYBE_NULL)
|
||||
+ * @type: type of filesystem (MAYBE_NULL)
|
||||
+ * @trans: name of trans (MAYBE NULL)
|
||||
+ * @flags: filesystem idependent mount flags
|
||||
+ * @data: filesystem mount flags
|
||||
+ * @request: permissions requested
|
||||
+ * @perms: the permissions computed for the request (NOT NULL)
|
||||
+ * @info: extra information message (MAYBE NULL)
|
||||
+ * @error: 0 if operation allowed else failure error code
|
||||
+ *
|
||||
+ * Returns: %0 or error on failure
|
||||
+ */
|
||||
+static int audit_mount(struct aa_profile *profile, gfp_t gfp, int op,
|
||||
+ const char *name, const char *src_name,
|
||||
+ const char *type, const char *trans,
|
||||
+ unsigned long flags, const void *data, u32 request,
|
||||
+ struct file_perms *perms, const char *info, int error)
|
||||
+{
|
||||
+ int audit_type = AUDIT_APPARMOR_AUTO;
|
||||
+ struct common_audit_data sa = { };
|
||||
+ struct apparmor_audit_data aad = { };
|
||||
+
|
||||
+ if (likely(!error)) {
|
||||
+ u32 mask = perms->audit;
|
||||
+
|
||||
+ if (unlikely(AUDIT_MODE(profile) == AUDIT_ALL))
|
||||
+ mask = 0xffff;
|
||||
+
|
||||
+ /* mask off perms that are not being force audited */
|
||||
+ request &= mask;
|
||||
+
|
||||
+ if (likely(!request))
|
||||
+ return 0;
|
||||
+ audit_type = AUDIT_APPARMOR_AUDIT;
|
||||
+ } else {
|
||||
+ /* only report permissions that were denied */
|
||||
+ request = request & ~perms->allow;
|
||||
+
|
||||
+ if (request & perms->kill)
|
||||
+ audit_type = AUDIT_APPARMOR_KILL;
|
||||
+
|
||||
+ /* quiet known rejects, assumes quiet and kill do not overlap */
|
||||
+ if ((request & perms->quiet) &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_NOQUIET &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_ALL)
|
||||
+ request &= ~perms->quiet;
|
||||
+
|
||||
+ if (!request)
|
||||
+ return COMPLAIN_MODE(profile) ?
|
||||
+ complain_error(error) : error;
|
||||
+ }
|
||||
+
|
||||
+ sa.type = LSM_AUDIT_DATA_NONE;
|
||||
+ sa.aad = &aad;
|
||||
+ sa.aad->op = op;
|
||||
+ sa.aad->name = name;
|
||||
+ sa.aad->mnt.src_name = src_name;
|
||||
+ sa.aad->mnt.type = type;
|
||||
+ sa.aad->mnt.trans = trans;
|
||||
+ sa.aad->mnt.flags = flags;
|
||||
+ if (data && (perms->audit & AA_AUDIT_DATA))
|
||||
+ sa.aad->mnt.data = data;
|
||||
+ sa.aad->info = info;
|
||||
+ sa.aad->error = error;
|
||||
+
|
||||
+ return aa_audit(audit_type, profile, gfp, &sa, audit_cb);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * match_mnt_flags - Do an ordered match on mount flags
|
||||
+ * @dfa: dfa to match against
|
||||
+ * @state: state to start in
|
||||
+ * @flags: mount flags to match against
|
||||
+ *
|
||||
+ * Mount flags are encoded as an ordered match. This is done instead of
|
||||
+ * checking against a simple bitmask, to allow for logical operations
|
||||
+ * on the flags.
|
||||
+ *
|
||||
+ * Returns: next state after flags match
|
||||
+ */
|
||||
+static unsigned int match_mnt_flags(struct aa_dfa *dfa, unsigned int state,
|
||||
+ unsigned long flags)
|
||||
+{
|
||||
+ unsigned int i;
|
||||
+
|
||||
+ for (i = 0; i <= 31 ; ++i) {
|
||||
+ if ((1 << i) & flags)
|
||||
+ state = aa_dfa_next(dfa, state, i + 1);
|
||||
+ }
|
||||
+
|
||||
+ return state;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * compute_mnt_perms - compute mount permission associated with @state
|
||||
+ * @dfa: dfa to match against (NOT NULL)
|
||||
+ * @state: state match finished in
|
||||
+ *
|
||||
+ * Returns: mount permissions
|
||||
+ */
|
||||
+static struct file_perms compute_mnt_perms(struct aa_dfa *dfa,
|
||||
+ unsigned int state)
|
||||
+{
|
||||
+ struct file_perms perms;
|
||||
+
|
||||
+ perms.kill = 0;
|
||||
+ perms.allow = dfa_user_allow(dfa, state);
|
||||
+ perms.audit = dfa_user_audit(dfa, state);
|
||||
+ perms.quiet = dfa_user_quiet(dfa, state);
|
||||
+ perms.xindex = dfa_user_xindex(dfa, state);
|
||||
+
|
||||
+ return perms;
|
||||
+}
|
||||
+
|
||||
+static const char const *mnt_info_table[] = {
|
||||
+ "match succeeded",
|
||||
+ "failed mntpnt match",
|
||||
+ "failed srcname match",
|
||||
+ "failed type match",
|
||||
+ "failed flags match",
|
||||
+ "failed data match"
|
||||
+};
|
||||
+
|
||||
+/*
|
||||
+ * Returns 0 on success else element that match failed in, this is the
|
||||
+ * index into the mnt_info_table above
|
||||
+ */
|
||||
+static int do_match_mnt(struct aa_dfa *dfa, unsigned int start,
|
||||
+ const char *mntpnt, const char *devname,
|
||||
+ const char *type, unsigned long flags,
|
||||
+ void *data, bool binary, struct file_perms *perms)
|
||||
+{
|
||||
+ unsigned int state;
|
||||
+
|
||||
+ state = aa_dfa_match(dfa, start, mntpnt);
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 1;
|
||||
+
|
||||
+ if (devname)
|
||||
+ state = aa_dfa_match(dfa, state, devname);
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 2;
|
||||
+
|
||||
+ if (type)
|
||||
+ state = aa_dfa_match(dfa, state, type);
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 3;
|
||||
+
|
||||
+ state = match_mnt_flags(dfa, state, flags);
|
||||
+ if (!state)
|
||||
+ return 4;
|
||||
+ *perms = compute_mnt_perms(dfa, state);
|
||||
+ if (perms->allow & AA_MAY_MOUNT)
|
||||
+ return 0;
|
||||
+
|
||||
+ /* only match data if not binary and the DFA flags data is expected */
|
||||
+ if (data && !binary && (perms->allow & AA_CONT_MATCH)) {
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 4;
|
||||
+
|
||||
+ state = aa_dfa_match(dfa, state, data);
|
||||
+ if (!state)
|
||||
+ return 5;
|
||||
+ *perms = compute_mnt_perms(dfa, state);
|
||||
+ if (perms->allow & AA_MAY_MOUNT)
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
+ /* failed at end of flags match */
|
||||
+ return 4;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * match_mnt - handle path matching for mount
|
||||
+ * @profile: the confining profile
|
||||
+ * @mntpnt: string for the mntpnt (NOT NULL)
|
||||
+ * @devname: string for the devname/src_name (MAYBE NULL)
|
||||
+ * @type: string for the dev type (MAYBE NULL)
|
||||
+ * @flags: mount flags to match
|
||||
+ * @data: fs mount data (MAYBE NULL)
|
||||
+ * @binary: whether @data is binary
|
||||
+ * @perms: Returns: permission found by the match
|
||||
+ * @info: Returns: infomation string about the match for logging
|
||||
+ *
|
||||
+ * Returns: 0 on success else error
|
||||
+ */
|
||||
+static int match_mnt(struct aa_profile *profile, const char *mntpnt,
|
||||
+ const char *devname, const char *type,
|
||||
+ unsigned long flags, void *data, bool binary,
|
||||
+ struct file_perms *perms, const char **info)
|
||||
+{
|
||||
+ int pos;
|
||||
+
|
||||
+ if (!profile->policy.dfa)
|
||||
+ return -EACCES;
|
||||
+
|
||||
+ pos = do_match_mnt(profile->policy.dfa,
|
||||
+ profile->policy.start[AA_CLASS_MOUNT],
|
||||
+ mntpnt, devname, type, flags, data, binary, perms);
|
||||
+ if (pos) {
|
||||
+ *info = mnt_info_table[pos];
|
||||
+ return -EACCES;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int path_flags(struct aa_profile *profile, struct path *path)
|
||||
+{
|
||||
+ return profile->path_flags |
|
||||
+ S_ISDIR(path->dentry->d_inode->i_mode) ? PATH_IS_DIR : 0;
|
||||
+}
|
||||
+
|
||||
+int aa_remount(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags, void *data)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ const char *name, *info = NULL;
|
||||
+ char *buffer = NULL;
|
||||
+ int binary, error;
|
||||
+
|
||||
+ binary = path->dentry->d_sb->s_type->fs_flags & FS_BINARY_MOUNTDATA;
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, NULL, NULL, flags, data, binary,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, NULL, NULL,
|
||||
+ NULL, flags, data, AA_MAY_MOUNT, &perms, info,
|
||||
+ error);
|
||||
+ kfree(buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_bind_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *dev_name, unsigned long flags)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL, *old_buffer = NULL;
|
||||
+ const char *name, *old_name = NULL, *info = NULL;
|
||||
+ struct path old_path;
|
||||
+ int error;
|
||||
+
|
||||
+ if (!dev_name || !*dev_name)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ flags &= MS_REC | MS_BIND;
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = kern_path(dev_name, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(&old_path, path_flags(profile, &old_path),
|
||||
+ &old_buffer, &old_name, &info);
|
||||
+ path_put(&old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, old_name, NULL, flags, NULL, 0,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, old_name,
|
||||
+ NULL, NULL, flags, NULL, AA_MAY_MOUNT, &perms,
|
||||
+ info, error);
|
||||
+ kfree(buffer);
|
||||
+ kfree(old_buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_mount_change_type(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL;
|
||||
+ const char *name, *info = NULL;
|
||||
+ int error;
|
||||
+
|
||||
+ /* These are the flags allowed by do_change_type() */
|
||||
+ flags &= (MS_REC | MS_SILENT | MS_SHARED | MS_PRIVATE | MS_SLAVE |
|
||||
+ MS_UNBINDABLE);
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, NULL, NULL, flags, NULL, 0, &perms,
|
||||
+ &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, NULL, NULL,
|
||||
+ NULL, flags, NULL, AA_MAY_MOUNT, &perms, info,
|
||||
+ error);
|
||||
+ kfree(buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_move_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *orig_name)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL, *old_buffer = NULL;
|
||||
+ const char *name, *old_name = NULL, *info = NULL;
|
||||
+ struct path old_path;
|
||||
+ int error;
|
||||
+
|
||||
+ if (!orig_name || !*orig_name)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = kern_path(orig_name, LOOKUP_FOLLOW, &old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(&old_path, path_flags(profile, &old_path),
|
||||
+ &old_buffer, &old_name, &info);
|
||||
+ path_put(&old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, old_name, NULL, MS_MOVE, NULL, 0,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, old_name,
|
||||
+ NULL, NULL, MS_MOVE, NULL, AA_MAY_MOUNT, &perms,
|
||||
+ info, error);
|
||||
+ kfree(buffer);
|
||||
+ kfree(old_buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_new_mount(struct aa_profile *profile, const char *orig_dev_name,
|
||||
+ struct path *path, const char *type, unsigned long flags,
|
||||
+ void *data)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL, *dev_buffer = NULL;
|
||||
+ const char *name = NULL, *dev_name = NULL, *info = NULL;
|
||||
+ int binary = 1;
|
||||
+ int error;
|
||||
+
|
||||
+ dev_name = orig_dev_name;
|
||||
+ if (type) {
|
||||
+ int requires_dev;
|
||||
+ struct file_system_type *fstype = get_fs_type(type);
|
||||
+ if (!fstype)
|
||||
+ return -ENODEV;
|
||||
+
|
||||
+ binary = fstype->fs_flags & FS_BINARY_MOUNTDATA;
|
||||
+ requires_dev = fstype->fs_flags & FS_REQUIRES_DEV;
|
||||
+ put_filesystem(fstype);
|
||||
+
|
||||
+ if (requires_dev) {
|
||||
+ struct path dev_path;
|
||||
+
|
||||
+ if (!dev_name || !*dev_name) {
|
||||
+ error = -ENOENT;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ error = kern_path(dev_name, LOOKUP_FOLLOW, &dev_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(&dev_path,
|
||||
+ path_flags(profile, &dev_path),
|
||||
+ &dev_buffer, &dev_name, &info);
|
||||
+ path_put(&dev_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, dev_name, type, flags, data, binary,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, dev_name,
|
||||
+ type, NULL, flags, data, AA_MAY_MOUNT, &perms, info,
|
||||
+ error);
|
||||
+ kfree(buffer);
|
||||
+ kfree(dev_buffer);
|
||||
+
|
||||
+out:
|
||||
+ return error;
|
||||
+
|
||||
+}
|
||||
+
|
||||
+int aa_umount(struct aa_profile *profile, struct vfsmount *mnt, int flags)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL;
|
||||
+ const char *name, *info = NULL;
|
||||
+ int error;
|
||||
+
|
||||
+ struct path path = { mnt, mnt->mnt_root };
|
||||
+ error = aa_path_name(&path, path_flags(profile, &path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ if (!error && profile->policy.dfa) {
|
||||
+ unsigned int state;
|
||||
+ state = aa_dfa_match(profile->policy.dfa,
|
||||
+ profile->policy.start[AA_CLASS_MOUNT],
|
||||
+ name);
|
||||
+ perms = compute_mnt_perms(profile->policy.dfa, state);
|
||||
+ }
|
||||
+
|
||||
+ if (AA_MAY_UMOUNT & ~perms.allow)
|
||||
+ error = -EACCES;
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_UMOUNT, name, NULL, NULL,
|
||||
+ NULL, 0, NULL, AA_MAY_UMOUNT, &perms, info, error);
|
||||
+ kfree(buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_pivotroot(struct aa_profile *profile, struct path *old_path,
|
||||
+ struct path *new_path)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ struct aa_profile *target = NULL;
|
||||
+ char *old_buffer = NULL, *new_buffer = NULL;
|
||||
+ const char *old_name, *new_name = NULL, *info = NULL;
|
||||
+ int error;
|
||||
+
|
||||
+ error = aa_path_name(old_path, path_flags(profile, old_path),
|
||||
+ &old_buffer, &old_name, &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(new_path, path_flags(profile, new_path),
|
||||
+ &new_buffer, &new_name, &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ if (profile->policy.dfa) {
|
||||
+ unsigned int state;
|
||||
+ state = aa_dfa_match(profile->policy.dfa,
|
||||
+ profile->policy.start[AA_CLASS_MOUNT],
|
||||
+ new_name);
|
||||
+ state = aa_dfa_null_transition(profile->policy.dfa, state);
|
||||
+ state = aa_dfa_match(profile->policy.dfa, state, old_name);
|
||||
+ perms = compute_mnt_perms(profile->policy.dfa, state);
|
||||
+ }
|
||||
+
|
||||
+ if (AA_MAY_PIVOTROOT & perms.allow) {
|
||||
+ if ((perms.xindex & AA_X_TYPE_MASK) == AA_X_TABLE) {
|
||||
+ target = x_table_lookup(profile, perms.xindex);
|
||||
+ if (!target)
|
||||
+ error = -ENOENT;
|
||||
+ else
|
||||
+ error = aa_replace_current_profile(target);
|
||||
+ }
|
||||
+ } else
|
||||
+ error = -EACCES;
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_PIVOTROOT, new_name,
|
||||
+ old_name, NULL, target ? target->base.name : NULL,
|
||||
+ 0, NULL, AA_MAY_PIVOTROOT, &perms, info, error);
|
||||
+ aa_put_profile(target);
|
||||
+ kfree(old_buffer);
|
||||
+ kfree(new_buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,70 @@
|
||||
From f58c91bc1871d604f88d0056099dc34f8ce3ae21 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 24 Oct 2012 06:27:32 -0700
|
||||
Subject: [PATCH 6/6] apparmor: fix IRQ stack overflow during free_profile
|
||||
|
||||
BugLink: http://bugs.launchpad.net/bugs/1056078
|
||||
|
||||
Profile replacement can cause long chains of profiles to build up when
|
||||
the profile being replaced is pinned. When the pinned profile is finally
|
||||
freed, it puts the reference to its replacement, which may in turn nest
|
||||
another call to free_profile on the stack. Because this may happen for
|
||||
each profile in the replacedby chain this can result in a recusion that
|
||||
causes the stack to overflow.
|
||||
|
||||
Break this nesting by directly walking the chain of replacedby profiles
|
||||
(ie. use iteration instead of recursion to free the list). This results
|
||||
in at most 2 levels of free_profile being called, while freeing a
|
||||
replacedby chain.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
Signed-off-by: James Morris <james.l.morris@oracle.com>
|
||||
---
|
||||
security/apparmor/policy.c | 24 +++++++++++++++++++++++-
|
||||
1 file changed, 23 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
|
||||
index 27c8161..56e5304 100644
|
||||
--- a/security/apparmor/policy.c
|
||||
+++ b/security/apparmor/policy.c
|
||||
@@ -724,6 +724,8 @@ fail:
|
||||
*/
|
||||
static void free_profile(struct aa_profile *profile)
|
||||
{
|
||||
+ struct aa_profile *p;
|
||||
+
|
||||
AA_DEBUG("%s(%p)\n", __func__, profile);
|
||||
|
||||
if (!profile)
|
||||
@@ -752,7 +754,27 @@ static void free_profile(struct aa_profile *profile)
|
||||
aa_put_dfa(profile->xmatch);
|
||||
aa_put_dfa(profile->policy.dfa);
|
||||
|
||||
- aa_put_profile(profile->replacedby);
|
||||
+ /* put the profile reference for replacedby, but not via
|
||||
+ * put_profile(kref_put).
|
||||
+ * replacedby can form a long chain that can result in cascading
|
||||
+ * frees that blows the stack because kref_put makes a nested fn
|
||||
+ * call (it looks like recursion, with free_profile calling
|
||||
+ * free_profile) for each profile in the chain lp#1056078.
|
||||
+ */
|
||||
+ for (p = profile->replacedby; p; ) {
|
||||
+ if (atomic_dec_and_test(&p->base.count.refcount)) {
|
||||
+ /* no more refs on p, grab its replacedby */
|
||||
+ struct aa_profile *next = p->replacedby;
|
||||
+ /* break the chain */
|
||||
+ p->replacedby = NULL;
|
||||
+ /* now free p, chain is broken */
|
||||
+ free_profile(p);
|
||||
+
|
||||
+ /* follow up with next profile in the chain */
|
||||
+ p = next;
|
||||
+ } else
|
||||
+ break;
|
||||
+ }
|
||||
|
||||
kzfree(profile);
|
||||
}
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,285 @@
|
||||
From 259cf7251194d81a4a3c4e6d76c2cf9e38d5647d Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Thu, 22 Jul 2010 02:32:02 -0700
|
||||
Subject: [PATCH 1/6] UBUNTU: SAUCE: AppArmor: Add profile introspection file
|
||||
to interface
|
||||
|
||||
Add the dynamic profiles file to the interace, to allow load policy
|
||||
introspection.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
Acked-by: Kees Cook <kees@ubuntu.com>
|
||||
---
|
||||
security/apparmor/Kconfig | 9 ++
|
||||
security/apparmor/apparmorfs.c | 231 ++++++++++++++++++++++++++++++++++++++++
|
||||
2 files changed, 240 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/Kconfig b/security/apparmor/Kconfig
|
||||
index 9b9013b..51ebf96 100644
|
||||
--- a/security/apparmor/Kconfig
|
||||
+++ b/security/apparmor/Kconfig
|
||||
@@ -29,3 +29,12 @@ config SECURITY_APPARMOR_BOOTPARAM_VALUE
|
||||
boot.
|
||||
|
||||
If you are unsure how to answer this question, answer 1.
|
||||
+
|
||||
+config SECURITY_APPARMOR_COMPAT_24
|
||||
+ bool "Enable AppArmor 2.4 compatability"
|
||||
+ depends on SECURITY_APPARMOR
|
||||
+ default y
|
||||
+ help
|
||||
+ This option enables compatability with AppArmor 2.4. It is
|
||||
+ recommended if compatability with older versions of AppArmor
|
||||
+ is desired.
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 16c15ec..42b7c9f 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -182,6 +182,234 @@ const struct file_operations aa_fs_seq_file_ops = {
|
||||
.release = single_release,
|
||||
};
|
||||
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+/**
|
||||
+ * __next_namespace - find the next namespace to list
|
||||
+ * @root: root namespace to stop search at (NOT NULL)
|
||||
+ * @ns: current ns position (NOT NULL)
|
||||
+ *
|
||||
+ * Find the next namespace from @ns under @root and handle all locking needed
|
||||
+ * while switching current namespace.
|
||||
+ *
|
||||
+ * Returns: next namespace or NULL if at last namespace under @root
|
||||
+ * NOTE: will not unlock root->lock
|
||||
+ */
|
||||
+static struct aa_namespace *__next_namespace(struct aa_namespace *root,
|
||||
+ struct aa_namespace *ns)
|
||||
+{
|
||||
+ struct aa_namespace *parent;
|
||||
+
|
||||
+ /* is next namespace a child */
|
||||
+ if (!list_empty(&ns->sub_ns)) {
|
||||
+ struct aa_namespace *next;
|
||||
+ next = list_first_entry(&ns->sub_ns, typeof(*ns), base.list);
|
||||
+ read_lock(&next->lock);
|
||||
+ return next;
|
||||
+ }
|
||||
+
|
||||
+ /* check if the next ns is a sibling, parent, gp, .. */
|
||||
+ parent = ns->parent;
|
||||
+ while (parent) {
|
||||
+ read_unlock(&ns->lock);
|
||||
+ list_for_each_entry_continue(ns, &parent->sub_ns, base.list) {
|
||||
+ read_lock(&ns->lock);
|
||||
+ return ns;
|
||||
+ }
|
||||
+ if (parent == root)
|
||||
+ return NULL;
|
||||
+ ns = parent;
|
||||
+ parent = parent->parent;
|
||||
+ }
|
||||
+
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * __first_profile - find the first profile in a namespace
|
||||
+ * @root: namespace that is root of profiles being displayed (NOT NULL)
|
||||
+ * @ns: namespace to start in (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: unrefcounted profile or NULL if no profile
|
||||
+ */
|
||||
+static struct aa_profile *__first_profile(struct aa_namespace *root,
|
||||
+ struct aa_namespace *ns)
|
||||
+{
|
||||
+ for ( ; ns; ns = __next_namespace(root, ns)) {
|
||||
+ if (!list_empty(&ns->base.profiles))
|
||||
+ return list_first_entry(&ns->base.profiles,
|
||||
+ struct aa_profile, base.list);
|
||||
+ }
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * __next_profile - step to the next profile in a profile tree
|
||||
+ * @profile: current profile in tree (NOT NULL)
|
||||
+ *
|
||||
+ * Perform a depth first taversal on the profile tree in a namespace
|
||||
+ *
|
||||
+ * Returns: next profile or NULL if done
|
||||
+ * Requires: profile->ns.lock to be held
|
||||
+ */
|
||||
+static struct aa_profile *__next_profile(struct aa_profile *p)
|
||||
+{
|
||||
+ struct aa_profile *parent;
|
||||
+ struct aa_namespace *ns = p->ns;
|
||||
+
|
||||
+ /* is next profile a child */
|
||||
+ if (!list_empty(&p->base.profiles))
|
||||
+ return list_first_entry(&p->base.profiles, typeof(*p),
|
||||
+ base.list);
|
||||
+
|
||||
+ /* is next profile a sibling, parent sibling, gp, subling, .. */
|
||||
+ parent = p->parent;
|
||||
+ while (parent) {
|
||||
+ list_for_each_entry_continue(p, &parent->base.profiles,
|
||||
+ base.list)
|
||||
+ return p;
|
||||
+ p = parent;
|
||||
+ parent = parent->parent;
|
||||
+ }
|
||||
+
|
||||
+ /* is next another profile in the namespace */
|
||||
+ list_for_each_entry_continue(p, &ns->base.profiles, base.list)
|
||||
+ return p;
|
||||
+
|
||||
+ return NULL;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * next_profile - step to the next profile in where ever it may be
|
||||
+ * @root: root namespace (NOT NULL)
|
||||
+ * @profile: current profile (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: next profile or NULL if there isn't one
|
||||
+ */
|
||||
+static struct aa_profile *next_profile(struct aa_namespace *root,
|
||||
+ struct aa_profile *profile)
|
||||
+{
|
||||
+ struct aa_profile *next = __next_profile(profile);
|
||||
+ if (next)
|
||||
+ return next;
|
||||
+
|
||||
+ /* finished all profiles in namespace move to next namespace */
|
||||
+ return __first_profile(root, __next_namespace(root, profile->ns));
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * p_start - start a depth first traversal of profile tree
|
||||
+ * @f: seq_file to fill
|
||||
+ * @pos: current position
|
||||
+ *
|
||||
+ * Returns: first profile under current namespace or NULL if none found
|
||||
+ *
|
||||
+ * acquires first ns->lock
|
||||
+ */
|
||||
+static void *p_start(struct seq_file *f, loff_t *pos)
|
||||
+ __acquires(root->lock)
|
||||
+{
|
||||
+ struct aa_profile *profile = NULL;
|
||||
+ struct aa_namespace *root = aa_current_profile()->ns;
|
||||
+ loff_t l = *pos;
|
||||
+ f->private = aa_get_namespace(root);
|
||||
+
|
||||
+
|
||||
+ /* find the first profile */
|
||||
+ read_lock(&root->lock);
|
||||
+ profile = __first_profile(root, root);
|
||||
+
|
||||
+ /* skip to position */
|
||||
+ for (; profile && l > 0; l--)
|
||||
+ profile = next_profile(root, profile);
|
||||
+
|
||||
+ return profile;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * p_next - read the next profile entry
|
||||
+ * @f: seq_file to fill
|
||||
+ * @p: profile previously returned
|
||||
+ * @pos: current position
|
||||
+ *
|
||||
+ * Returns: next profile after @p or NULL if none
|
||||
+ *
|
||||
+ * may acquire/release locks in namespace tree as necessary
|
||||
+ */
|
||||
+static void *p_next(struct seq_file *f, void *p, loff_t *pos)
|
||||
+{
|
||||
+ struct aa_profile *profile = p;
|
||||
+ struct aa_namespace *root = f->private;
|
||||
+ (*pos)++;
|
||||
+
|
||||
+ return next_profile(root, profile);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * p_stop - stop depth first traversal
|
||||
+ * @f: seq_file we are filling
|
||||
+ * @p: the last profile writen
|
||||
+ *
|
||||
+ * Release all locking done by p_start/p_next on namespace tree
|
||||
+ */
|
||||
+static void p_stop(struct seq_file *f, void *p)
|
||||
+ __releases(root->lock)
|
||||
+{
|
||||
+ struct aa_profile *profile = p;
|
||||
+ struct aa_namespace *root = f->private, *ns;
|
||||
+
|
||||
+ if (profile) {
|
||||
+ for (ns = profile->ns; ns && ns != root; ns = ns->parent)
|
||||
+ read_unlock(&ns->lock);
|
||||
+ }
|
||||
+ read_unlock(&root->lock);
|
||||
+ aa_put_namespace(root);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * seq_show_profile - show a profile entry
|
||||
+ * @f: seq_file to file
|
||||
+ * @p: current position (profile) (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: error on failure
|
||||
+ */
|
||||
+static int seq_show_profile(struct seq_file *f, void *p)
|
||||
+{
|
||||
+ struct aa_profile *profile = (struct aa_profile *)p;
|
||||
+ struct aa_namespace *root = f->private;
|
||||
+
|
||||
+ if (profile->ns != root)
|
||||
+ seq_printf(f, ":%s://", aa_ns_name(root, profile->ns));
|
||||
+ seq_printf(f, "%s (%s)\n", profile->base.hname,
|
||||
+ COMPLAIN_MODE(profile) ? "complain" : "enforce");
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static const struct seq_operations aa_fs_profiles_op = {
|
||||
+ .start = p_start,
|
||||
+ .next = p_next,
|
||||
+ .stop = p_stop,
|
||||
+ .show = seq_show_profile,
|
||||
+};
|
||||
+
|
||||
+static int profiles_open(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ return seq_open(file, &aa_fs_profiles_op);
|
||||
+}
|
||||
+
|
||||
+static int profiles_release(struct inode *inode, struct file *file)
|
||||
+{
|
||||
+ return seq_release(inode, file);
|
||||
+}
|
||||
+
|
||||
+const struct file_operations aa_fs_profiles_fops = {
|
||||
+ .open = profiles_open,
|
||||
+ .read = seq_read,
|
||||
+ .llseek = seq_lseek,
|
||||
+ .release = profiles_release,
|
||||
+};
|
||||
+#endif /* CONFIG_SECURITY_APPARMOR_COMPAT_24 */
|
||||
+
|
||||
/** Base file system setup **/
|
||||
|
||||
static struct aa_fs_entry aa_fs_entry_file[] = {
|
||||
@@ -210,6 +438,9 @@ static struct aa_fs_entry aa_fs_entry_apparmor[] = {
|
||||
AA_FS_FILE_FOPS(".load", 0640, &aa_fs_profile_load),
|
||||
AA_FS_FILE_FOPS(".replace", 0640, &aa_fs_profile_replace),
|
||||
AA_FS_FILE_FOPS(".remove", 0640, &aa_fs_profile_remove),
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ AA_FS_FILE_FOPS("profiles", 0640, &aa_fs_profiles_fops),
|
||||
+#endif
|
||||
AA_FS_DIR("features", aa_fs_entry_features),
|
||||
{ }
|
||||
};
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,603 @@
|
||||
From 0317e6ba6aa4adc71f645b7da5318f4caa69267e Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Mon, 4 Oct 2010 15:03:36 -0700
|
||||
Subject: [PATCH 2/6] UBUNTU: SAUCE: AppArmor: basic networking rules
|
||||
|
||||
Base support for network mediation.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/.gitignore | 2 +-
|
||||
security/apparmor/Makefile | 42 +++++++++-
|
||||
security/apparmor/apparmorfs.c | 1 +
|
||||
security/apparmor/include/audit.h | 4 +
|
||||
security/apparmor/include/net.h | 44 ++++++++++
|
||||
security/apparmor/include/policy.h | 3 +
|
||||
security/apparmor/lsm.c | 112 +++++++++++++++++++++++++
|
||||
security/apparmor/net.c | 162 ++++++++++++++++++++++++++++++++++++
|
||||
security/apparmor/policy.c | 1 +
|
||||
security/apparmor/policy_unpack.c | 46 ++++++++++
|
||||
10 files changed, 414 insertions(+), 3 deletions(-)
|
||||
create mode 100644 security/apparmor/include/net.h
|
||||
create mode 100644 security/apparmor/net.c
|
||||
|
||||
diff --git a/security/apparmor/.gitignore b/security/apparmor/.gitignore
|
||||
index 4d995ae..d5b291e 100644
|
||||
--- a/security/apparmor/.gitignore
|
||||
+++ b/security/apparmor/.gitignore
|
||||
@@ -1,6 +1,6 @@
|
||||
#
|
||||
# Generated include files
|
||||
#
|
||||
-af_names.h
|
||||
+net_names.h
|
||||
capability_names.h
|
||||
rlim_names.h
|
||||
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
|
||||
index 806bd19..19daa85 100644
|
||||
--- a/security/apparmor/Makefile
|
||||
+++ b/security/apparmor/Makefile
|
||||
@@ -4,9 +4,9 @@ obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
|
||||
|
||||
apparmor-y := apparmorfs.o audit.o capability.o context.o ipc.o lib.o match.o \
|
||||
path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
|
||||
- resource.o sid.o file.o
|
||||
+ resource.o sid.o file.o net.o
|
||||
|
||||
-clean-files := capability_names.h rlim_names.h
|
||||
+clean-files := capability_names.h rlim_names.h net_names.h
|
||||
|
||||
|
||||
# Build a lower case string table of capability names
|
||||
@@ -20,6 +20,38 @@ cmd_make-caps = echo "static const char *const capability_names[] = {" > $@ ;\
|
||||
-e 's/^\#define[ \t]+CAP_([A-Z0-9_]+)[ \t]+([0-9]+)/[\2] = "\L\1",/p';\
|
||||
echo "};" >> $@
|
||||
|
||||
+# Build a lower case string table of address family names
|
||||
+# Transform lines from
|
||||
+# define AF_LOCAL 1 /* POSIX name for AF_UNIX */
|
||||
+# #define AF_INET 2 /* Internet IP Protocol */
|
||||
+# to
|
||||
+# [1] = "local",
|
||||
+# [2] = "inet",
|
||||
+#
|
||||
+# and build the securityfs entries for the mapping.
|
||||
+# Transforms lines from
|
||||
+# #define AF_INET 2 /* Internet IP Protocol */
|
||||
+# to
|
||||
+# #define AA_FS_AF_MASK "local inet"
|
||||
+quiet_cmd_make-af = GEN $@
|
||||
+cmd_make-af = echo "static const char *address_family_names[] = {" > $@ ;\
|
||||
+ sed $< >>$@ -r -n -e "/AF_MAX/d" -e "/AF_LOCAL/d" -e \
|
||||
+ 's/^\#define[ \t]+AF_([A-Z0-9_]+)[ \t]+([0-9]+)(.*)/[\2] = "\L\1",/p';\
|
||||
+ echo "};" >> $@ ;\
|
||||
+ echo -n '\#define AA_FS_AF_MASK "' >> $@ ;\
|
||||
+ sed -r -n 's/^\#define[ \t]+AF_([A-Z0-9_]+)[ \t]+([0-9]+)(.*)/\L\1/p'\
|
||||
+ $< | tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
|
||||
+
|
||||
+# Build a lower case string table of sock type names
|
||||
+# Transform lines from
|
||||
+# SOCK_STREAM = 1,
|
||||
+# to
|
||||
+# [1] = "stream",
|
||||
+quiet_cmd_make-sock = GEN $@
|
||||
+cmd_make-sock = echo "static const char *sock_type_names[] = {" >> $@ ;\
|
||||
+ sed $^ >>$@ -r -n \
|
||||
+ -e 's/^\tSOCK_([A-Z0-9_]+)[\t]+=[ \t]+([0-9]+)(.*)/[\2] = "\L\1",/p';\
|
||||
+ echo "};" >> $@
|
||||
|
||||
# Build a lower case string table of rlimit names.
|
||||
# Transforms lines from
|
||||
@@ -56,6 +88,7 @@ cmd_make-rlim = echo "static const char *const rlim_names[RLIM_NLIMITS] = {" \
|
||||
tr '\n' ' ' | sed -e 's/ $$/"\n/' >> $@
|
||||
|
||||
$(obj)/capability.o : $(obj)/capability_names.h
|
||||
+$(obj)/net.o : $(obj)/net_names.h
|
||||
$(obj)/resource.o : $(obj)/rlim_names.h
|
||||
$(obj)/capability_names.h : $(srctree)/include/linux/capability.h \
|
||||
$(src)/Makefile
|
||||
@@ -63,3 +96,8 @@ $(obj)/capability_names.h : $(srctree)/include/linux/capability.h \
|
||||
$(obj)/rlim_names.h : $(srctree)/include/asm-generic/resource.h \
|
||||
$(src)/Makefile
|
||||
$(call cmd,make-rlim)
|
||||
+$(obj)/net_names.h : $(srctree)/include/linux/socket.h \
|
||||
+ $(srctree)/include/linux/net.h \
|
||||
+ $(src)/Makefile
|
||||
+ $(call cmd,make-af)
|
||||
+ $(call cmd,make-sock)
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 42b7c9f..114fb23 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -429,6 +429,7 @@ static struct aa_fs_entry aa_fs_entry_domain[] = {
|
||||
static struct aa_fs_entry aa_fs_entry_features[] = {
|
||||
AA_FS_DIR("domain", aa_fs_entry_domain),
|
||||
AA_FS_DIR("file", aa_fs_entry_file),
|
||||
+ AA_FS_DIR("network", aa_fs_entry_network),
|
||||
AA_FS_FILE_U64("capability", VFS_CAP_FLAGS_MASK),
|
||||
AA_FS_DIR("rlimit", aa_fs_entry_rlimit),
|
||||
{ }
|
||||
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
|
||||
index 4b7e189..17734f9 100644
|
||||
--- a/security/apparmor/include/audit.h
|
||||
+++ b/security/apparmor/include/audit.h
|
||||
@@ -127,6 +127,10 @@ struct apparmor_audit_data {
|
||||
u32 denied;
|
||||
uid_t ouid;
|
||||
} fs;
|
||||
+ struct {
|
||||
+ int type, protocol;
|
||||
+ struct sock *sk;
|
||||
+ } net;
|
||||
};
|
||||
};
|
||||
|
||||
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
|
||||
new file mode 100644
|
||||
index 0000000..cb8a121
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/include/net.h
|
||||
@@ -0,0 +1,44 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation definitions.
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#ifndef __AA_NET_H
|
||||
+#define __AA_NET_H
|
||||
+
|
||||
+#include <net/sock.h>
|
||||
+
|
||||
+#include "apparmorfs.h"
|
||||
+
|
||||
+/* struct aa_net - network confinement data
|
||||
+ * @allowed: basic network families permissions
|
||||
+ * @audit_network: which network permissions to force audit
|
||||
+ * @quiet_network: which network permissions to quiet rejects
|
||||
+ */
|
||||
+struct aa_net {
|
||||
+ u16 allow[AF_MAX];
|
||||
+ u16 audit[AF_MAX];
|
||||
+ u16 quiet[AF_MAX];
|
||||
+};
|
||||
+
|
||||
+extern struct aa_fs_entry aa_fs_entry_network[];
|
||||
+
|
||||
+extern int aa_net_perm(int op, struct aa_profile *profile, u16 family,
|
||||
+ int type, int protocol, struct sock *sk);
|
||||
+extern int aa_revalidate_sk(int op, struct sock *sk);
|
||||
+
|
||||
+static inline void aa_free_net_rules(struct aa_net *new)
|
||||
+{
|
||||
+ /* NOP */
|
||||
+}
|
||||
+
|
||||
+#endif /* __AA_NET_H */
|
||||
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h
|
||||
index bda4569..eb13a73 100644
|
||||
--- a/security/apparmor/include/policy.h
|
||||
+++ b/security/apparmor/include/policy.h
|
||||
@@ -27,6 +27,7 @@
|
||||
#include "capability.h"
|
||||
#include "domain.h"
|
||||
#include "file.h"
|
||||
+#include "net.h"
|
||||
#include "resource.h"
|
||||
|
||||
extern const char *const profile_mode_names[];
|
||||
@@ -157,6 +158,7 @@ struct aa_policydb {
|
||||
* @policy: general match rules governing policy
|
||||
* @file: The set of rules governing basic file access and domain transitions
|
||||
* @caps: capabilities for the profile
|
||||
+ * @net: network controls for the profile
|
||||
* @rlimits: rlimits for the profile
|
||||
*
|
||||
* The AppArmor profile contains the basic confinement data. Each profile
|
||||
@@ -194,6 +196,7 @@ struct aa_profile {
|
||||
struct aa_policydb policy;
|
||||
struct aa_file_rules file;
|
||||
struct aa_caps caps;
|
||||
+ struct aa_net net;
|
||||
struct aa_rlimit rlimits;
|
||||
};
|
||||
|
||||
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
|
||||
index 8ea39aa..f628734 100644
|
||||
--- a/security/apparmor/lsm.c
|
||||
+++ b/security/apparmor/lsm.c
|
||||
@@ -32,6 +32,7 @@
|
||||
#include "include/context.h"
|
||||
#include "include/file.h"
|
||||
#include "include/ipc.h"
|
||||
+#include "include/net.h"
|
||||
#include "include/path.h"
|
||||
#include "include/policy.h"
|
||||
#include "include/procattr.h"
|
||||
@@ -614,6 +615,104 @@ static int apparmor_task_setrlimit(struct task_struct *task,
|
||||
return error;
|
||||
}
|
||||
|
||||
+static int apparmor_socket_create(int family, int type, int protocol, int kern)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ if (kern)
|
||||
+ return 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_net_perm(OP_CREATE, profile, family, type, protocol,
|
||||
+ NULL);
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_bind(struct socket *sock,
|
||||
+ struct sockaddr *address, int addrlen)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_BIND, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_connect(struct socket *sock,
|
||||
+ struct sockaddr *address, int addrlen)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_CONNECT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_listen(struct socket *sock, int backlog)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_LISTEN, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_accept(struct socket *sock, struct socket *newsock)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_ACCEPT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_sendmsg(struct socket *sock,
|
||||
+ struct msghdr *msg, int size)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_SENDMSG, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_recvmsg(struct socket *sock,
|
||||
+ struct msghdr *msg, int size, int flags)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_RECVMSG, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_getsockname(struct socket *sock)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_GETSOCKNAME, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_getpeername(struct socket *sock)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_GETPEERNAME, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_getsockopt(struct socket *sock, int level,
|
||||
+ int optname)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_GETSOCKOPT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_setsockopt(struct socket *sock, int level,
|
||||
+ int optname)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_SETSOCKOPT, sk);
|
||||
+}
|
||||
+
|
||||
+static int apparmor_socket_shutdown(struct socket *sock, int how)
|
||||
+{
|
||||
+ struct sock *sk = sock->sk;
|
||||
+
|
||||
+ return aa_revalidate_sk(OP_SOCK_SHUTDOWN, sk);
|
||||
+}
|
||||
+
|
||||
static struct security_operations apparmor_ops = {
|
||||
.name = "apparmor",
|
||||
|
||||
@@ -646,6 +745,19 @@ static struct security_operations apparmor_ops = {
|
||||
.getprocattr = apparmor_getprocattr,
|
||||
.setprocattr = apparmor_setprocattr,
|
||||
|
||||
+ .socket_create = apparmor_socket_create,
|
||||
+ .socket_bind = apparmor_socket_bind,
|
||||
+ .socket_connect = apparmor_socket_connect,
|
||||
+ .socket_listen = apparmor_socket_listen,
|
||||
+ .socket_accept = apparmor_socket_accept,
|
||||
+ .socket_sendmsg = apparmor_socket_sendmsg,
|
||||
+ .socket_recvmsg = apparmor_socket_recvmsg,
|
||||
+ .socket_getsockname = apparmor_socket_getsockname,
|
||||
+ .socket_getpeername = apparmor_socket_getpeername,
|
||||
+ .socket_getsockopt = apparmor_socket_getsockopt,
|
||||
+ .socket_setsockopt = apparmor_socket_setsockopt,
|
||||
+ .socket_shutdown = apparmor_socket_shutdown,
|
||||
+
|
||||
.cred_alloc_blank = apparmor_cred_alloc_blank,
|
||||
.cred_free = apparmor_cred_free,
|
||||
.cred_prepare = apparmor_cred_prepare,
|
||||
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
|
||||
new file mode 100644
|
||||
index 0000000..003dd18
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -0,0 +1,162 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#include "include/apparmor.h"
|
||||
+#include "include/audit.h"
|
||||
+#include "include/context.h"
|
||||
+#include "include/net.h"
|
||||
+#include "include/policy.h"
|
||||
+
|
||||
+#include "net_names.h"
|
||||
+
|
||||
+struct aa_fs_entry aa_fs_entry_network[] = {
|
||||
+ AA_FS_FILE_STRING("af_mask", AA_FS_AF_MASK),
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
+/* audit callback for net specific fields */
|
||||
+static void audit_cb(struct audit_buffer *ab, void *va)
|
||||
+{
|
||||
+ struct common_audit_data *sa = va;
|
||||
+
|
||||
+ audit_log_format(ab, " family=");
|
||||
+ if (address_family_names[sa->u.net->family]) {
|
||||
+ audit_log_string(ab, address_family_names[sa->u.net->family]);
|
||||
+ } else {
|
||||
+ audit_log_format(ab, "\"unknown(%d)\"", sa->u.net->family);
|
||||
+ }
|
||||
+ audit_log_format(ab, " sock_type=");
|
||||
+ if (sock_type_names[sa->aad->net.type]) {
|
||||
+ audit_log_string(ab, sock_type_names[sa->aad->net.type]);
|
||||
+ } else {
|
||||
+ audit_log_format(ab, "\"unknown(%d)\"", sa->aad->net.type);
|
||||
+ }
|
||||
+ audit_log_format(ab, " protocol=%d", sa->aad->net.protocol);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * audit_net - audit network access
|
||||
+ * @profile: profile being enforced (NOT NULL)
|
||||
+ * @op: operation being checked
|
||||
+ * @family: network family
|
||||
+ * @type: network type
|
||||
+ * @protocol: network protocol
|
||||
+ * @sk: socket auditing is being applied to
|
||||
+ * @error: error code for failure else 0
|
||||
+ *
|
||||
+ * Returns: %0 or sa->error else other errorcode on failure
|
||||
+ */
|
||||
+static int audit_net(struct aa_profile *profile, int op, u16 family, int type,
|
||||
+ int protocol, struct sock *sk, int error)
|
||||
+{
|
||||
+ int audit_type = AUDIT_APPARMOR_AUTO;
|
||||
+ struct common_audit_data sa;
|
||||
+ struct apparmor_audit_data aad = { };
|
||||
+ struct lsm_network_audit net = { };
|
||||
+ if (sk) {
|
||||
+ sa.type = LSM_AUDIT_DATA_NET;
|
||||
+ } else {
|
||||
+ sa.type = LSM_AUDIT_DATA_NONE;
|
||||
+ }
|
||||
+ /* todo fill in socket addr info */
|
||||
+ sa.aad = &aad;
|
||||
+ sa.u.net = &net;
|
||||
+ sa.aad->op = op,
|
||||
+ sa.u.net->family = family;
|
||||
+ sa.u.net->sk = sk;
|
||||
+ sa.aad->net.type = type;
|
||||
+ sa.aad->net.protocol = protocol;
|
||||
+ sa.aad->error = error;
|
||||
+
|
||||
+ if (likely(!sa.aad->error)) {
|
||||
+ u16 audit_mask = profile->net.audit[sa.u.net->family];
|
||||
+ if (likely((AUDIT_MODE(profile) != AUDIT_ALL) &&
|
||||
+ !(1 << sa.aad->net.type & audit_mask)))
|
||||
+ return 0;
|
||||
+ audit_type = AUDIT_APPARMOR_AUDIT;
|
||||
+ } else {
|
||||
+ u16 quiet_mask = profile->net.quiet[sa.u.net->family];
|
||||
+ u16 kill_mask = 0;
|
||||
+ u16 denied = (1 << sa.aad->net.type) & ~quiet_mask;
|
||||
+
|
||||
+ if (denied & kill_mask)
|
||||
+ audit_type = AUDIT_APPARMOR_KILL;
|
||||
+
|
||||
+ if ((denied & quiet_mask) &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_NOQUIET &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_ALL)
|
||||
+ return COMPLAIN_MODE(profile) ? 0 : sa.aad->error;
|
||||
+ }
|
||||
+
|
||||
+ return aa_audit(audit_type, profile, GFP_KERNEL, &sa, audit_cb);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * aa_net_perm - very course network access check
|
||||
+ * @op: operation being checked
|
||||
+ * @profile: profile being enforced (NOT NULL)
|
||||
+ * @family: network family
|
||||
+ * @type: network type
|
||||
+ * @protocol: network protocol
|
||||
+ *
|
||||
+ * Returns: %0 else error if permission denied
|
||||
+ */
|
||||
+int aa_net_perm(int op, struct aa_profile *profile, u16 family, int type,
|
||||
+ int protocol, struct sock *sk)
|
||||
+{
|
||||
+ u16 family_mask;
|
||||
+ int error;
|
||||
+
|
||||
+ if ((family < 0) || (family >= AF_MAX))
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ if ((type < 0) || (type >= SOCK_MAX))
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ /* unix domain and netlink sockets are handled by ipc */
|
||||
+ if (family == AF_UNIX || family == AF_NETLINK)
|
||||
+ return 0;
|
||||
+
|
||||
+ family_mask = profile->net.allow[family];
|
||||
+
|
||||
+ error = (family_mask & (1 << type)) ? 0 : -EACCES;
|
||||
+
|
||||
+ return audit_net(profile, op, family, type, protocol, sk, error);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * aa_revalidate_sk - Revalidate access to a sock
|
||||
+ * @op: operation being checked
|
||||
+ * @sk: sock being revalidated (NOT NULL)
|
||||
+ *
|
||||
+ * Returns: %0 else error if permission denied
|
||||
+ */
|
||||
+int aa_revalidate_sk(int op, struct sock *sk)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ /* aa_revalidate_sk should not be called from interrupt context
|
||||
+ * don't mediate these calls as they are not task related
|
||||
+ */
|
||||
+ if (in_interrupt())
|
||||
+ return 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_net_perm(op, profile, sk->sk_family, sk->sk_type,
|
||||
+ sk->sk_protocol, sk);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
|
||||
index cf5fd22..27c8161 100644
|
||||
--- a/security/apparmor/policy.c
|
||||
+++ b/security/apparmor/policy.c
|
||||
@@ -745,6 +745,7 @@ static void free_profile(struct aa_profile *profile)
|
||||
|
||||
aa_free_file_rules(&profile->file);
|
||||
aa_free_cap_rules(&profile->caps);
|
||||
+ aa_free_net_rules(&profile->net);
|
||||
aa_free_rlimit_rules(&profile->rlimits);
|
||||
|
||||
aa_free_sid(profile->sid);
|
||||
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
|
||||
index 329b1fd..1b90dfa 100644
|
||||
--- a/security/apparmor/policy_unpack.c
|
||||
+++ b/security/apparmor/policy_unpack.c
|
||||
@@ -193,6 +193,19 @@ fail:
|
||||
return 0;
|
||||
}
|
||||
|
||||
+static bool unpack_u16(struct aa_ext *e, u16 *data, const char *name)
|
||||
+{
|
||||
+ if (unpack_nameX(e, AA_U16, name)) {
|
||||
+ if (!inbounds(e, sizeof(u16)))
|
||||
+ return 0;
|
||||
+ if (data)
|
||||
+ *data = le16_to_cpu(get_unaligned((u16 *) e->pos));
|
||||
+ e->pos += sizeof(u16);
|
||||
+ return 1;
|
||||
+ }
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
static bool unpack_u32(struct aa_ext *e, u32 *data, const char *name)
|
||||
{
|
||||
if (unpack_nameX(e, AA_U32, name)) {
|
||||
@@ -471,6 +484,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e)
|
||||
{
|
||||
struct aa_profile *profile = NULL;
|
||||
const char *name = NULL;
|
||||
+ size_t size = 0;
|
||||
int i, error = -EPROTO;
|
||||
kernel_cap_t tmpcap;
|
||||
u32 tmp;
|
||||
@@ -564,6 +578,38 @@ static struct aa_profile *unpack_profile(struct aa_ext *e)
|
||||
if (!unpack_rlimits(e, profile))
|
||||
goto fail;
|
||||
|
||||
+ size = unpack_array(e, "net_allowed_af");
|
||||
+ if (size) {
|
||||
+
|
||||
+ for (i = 0; i < size; i++) {
|
||||
+ /* discard extraneous rules that this kernel will
|
||||
+ * never request
|
||||
+ */
|
||||
+ if (i >= AF_MAX) {
|
||||
+ u16 tmp;
|
||||
+ if (!unpack_u16(e, &tmp, NULL) ||
|
||||
+ !unpack_u16(e, &tmp, NULL) ||
|
||||
+ !unpack_u16(e, &tmp, NULL))
|
||||
+ goto fail;
|
||||
+ continue;
|
||||
+ }
|
||||
+ if (!unpack_u16(e, &profile->net.allow[i], NULL))
|
||||
+ goto fail;
|
||||
+ if (!unpack_u16(e, &profile->net.audit[i], NULL))
|
||||
+ goto fail;
|
||||
+ if (!unpack_u16(e, &profile->net.quiet[i], NULL))
|
||||
+ goto fail;
|
||||
+ }
|
||||
+ if (!unpack_nameX(e, AA_ARRAYEND, NULL))
|
||||
+ goto fail;
|
||||
+ }
|
||||
+ /*
|
||||
+ * allow unix domain and netlink sockets they are handled
|
||||
+ * by IPC
|
||||
+ */
|
||||
+ profile->net.allow[AF_UNIX] = 0xffff;
|
||||
+ profile->net.allow[AF_NETLINK] = 0xffff;
|
||||
+
|
||||
if (unpack_nameX(e, AA_STRUCT, "policydb")) {
|
||||
/* generic policy dfa - optional and may be NULL */
|
||||
profile->policy.dfa = unpack_dfa(e);
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,38 @@
|
||||
From b1cb9d1b4f0d585c271c584da954d9eb2e347b40 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Fri, 29 Jun 2012 17:34:00 -0700
|
||||
Subject: [PATCH 3/6] apparmor: Fix quieting of audit messages for network
|
||||
mediation
|
||||
|
||||
If a profile specified a quieting of network denials for a given rule by
|
||||
either the quiet or deny rule qualifiers, the resultant quiet mask for
|
||||
denied requests was applied incorrectly, resulting in two potential bugs.
|
||||
1. The misapplied quiet mask would prevent denials from being correctly
|
||||
tested against the kill mask/mode. Thus network access requests that
|
||||
should have resulted in the application being killed did not.
|
||||
|
||||
2. The actual quieting of the denied network request was not being applied.
|
||||
This would result in network rejections always being logged even when
|
||||
they had been specifically marked as quieted.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/net.c | 2 +-
|
||||
1 file changed, 1 insertion(+), 1 deletion(-)
|
||||
|
||||
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
|
||||
index 003dd18..6e6e5c9 100644
|
||||
--- a/security/apparmor/net.c
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -88,7 +88,7 @@ static int audit_net(struct aa_profile *profile, int op, u16 family, int type,
|
||||
} else {
|
||||
u16 quiet_mask = profile->net.quiet[sa.u.net->family];
|
||||
u16 kill_mask = 0;
|
||||
- u16 denied = (1 << sa.aad->net.type) & ~quiet_mask;
|
||||
+ u16 denied = (1 << sa.aad->net.type);
|
||||
|
||||
if (denied & kill_mask)
|
||||
audit_type = AUDIT_APPARMOR_KILL;
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,98 @@
|
||||
From f284c9554341aded2d599e9355574cac36c2dd23 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Fri, 29 Jun 2012 17:34:01 -0700
|
||||
Subject: [PATCH 4/6] apparmor: Ensure apparmor does not mediate kernel based
|
||||
sockets
|
||||
|
||||
Currently apparmor makes the assumption that kernel sockets are unmediated
|
||||
because mediation is only done against tasks that have a profile attached.
|
||||
Ensure we never get in a situation where a kernel socket is being mediated
|
||||
by tagging the sk_security field for kernel sockets.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/include/net.h | 2 ++
|
||||
security/apparmor/lsm.c | 18 ++++++++++++++++++
|
||||
security/apparmor/net.c | 3 +++
|
||||
3 files changed, 23 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
|
||||
index cb8a121..bc8198b 100644
|
||||
--- a/security/apparmor/include/net.h
|
||||
+++ b/security/apparmor/include/net.h
|
||||
@@ -19,6 +19,8 @@
|
||||
|
||||
#include "apparmorfs.h"
|
||||
|
||||
+#define AA_SOCK_KERN 0xAA
|
||||
+
|
||||
/* struct aa_net - network confinement data
|
||||
* @allowed: basic network families permissions
|
||||
* @audit_network: which network permissions to force audit
|
||||
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
|
||||
index f628734..a172d01 100644
|
||||
--- a/security/apparmor/lsm.c
|
||||
+++ b/security/apparmor/lsm.c
|
||||
@@ -630,6 +630,16 @@ static int apparmor_socket_create(int family, int type, int protocol, int kern)
|
||||
return error;
|
||||
}
|
||||
|
||||
+static int apparmor_socket_post_create(struct socket *sock, int family,
|
||||
+ int type, int protocol, int kern)
|
||||
+{
|
||||
+ if (kern)
|
||||
+ /* tag kernel sockets so we don't mediate them later */
|
||||
+ sock->sk->sk_security = (void *) AA_SOCK_KERN;
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
static int apparmor_socket_bind(struct socket *sock,
|
||||
struct sockaddr *address, int addrlen)
|
||||
{
|
||||
@@ -713,6 +723,12 @@ static int apparmor_socket_shutdown(struct socket *sock, int how)
|
||||
return aa_revalidate_sk(OP_SOCK_SHUTDOWN, sk);
|
||||
}
|
||||
|
||||
+static void apparmor_sk_clone_security(const struct sock *sk,
|
||||
+ struct sock *newsk)
|
||||
+{
|
||||
+ newsk->sk_security = sk->sk_security;
|
||||
+}
|
||||
+
|
||||
static struct security_operations apparmor_ops = {
|
||||
.name = "apparmor",
|
||||
|
||||
@@ -746,6 +762,7 @@ static struct security_operations apparmor_ops = {
|
||||
.setprocattr = apparmor_setprocattr,
|
||||
|
||||
.socket_create = apparmor_socket_create,
|
||||
+ .socket_post_create = apparmor_socket_post_create,
|
||||
.socket_bind = apparmor_socket_bind,
|
||||
.socket_connect = apparmor_socket_connect,
|
||||
.socket_listen = apparmor_socket_listen,
|
||||
@@ -757,6 +774,7 @@ static struct security_operations apparmor_ops = {
|
||||
.socket_getsockopt = apparmor_socket_getsockopt,
|
||||
.socket_setsockopt = apparmor_socket_setsockopt,
|
||||
.socket_shutdown = apparmor_socket_shutdown,
|
||||
+ .sk_clone_security = apparmor_sk_clone_security,
|
||||
|
||||
.cred_alloc_blank = apparmor_cred_alloc_blank,
|
||||
.cred_free = apparmor_cred_free,
|
||||
diff --git a/security/apparmor/net.c b/security/apparmor/net.c
|
||||
index 6e6e5c9..baa4df1 100644
|
||||
--- a/security/apparmor/net.c
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -153,6 +153,9 @@ int aa_revalidate_sk(int op, struct sock *sk)
|
||||
if (in_interrupt())
|
||||
return 0;
|
||||
|
||||
+ if (sk->sk_security == (void *) AA_SOCK_KERN)
|
||||
+ return 0;
|
||||
+
|
||||
profile = __aa_current_profile();
|
||||
if (!unconfined(profile))
|
||||
error = aa_net_perm(op, profile, sk->sk_family, sk->sk_type,
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,957 @@
|
||||
From f5e962d77f98deab3461404567abd4759f5445a7 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 16 May 2012 10:58:05 -0700
|
||||
Subject: [PATCH 5/6] UBUNTU: SAUCE: apparmor: Add the ability to mediate
|
||||
mount
|
||||
|
||||
Add the ability for apparmor to do mediation of mount operations. Mount
|
||||
rules require an updated apparmor_parser (2.8 series) for policy compilation.
|
||||
|
||||
The basic form of the rules are.
|
||||
|
||||
[audit] [deny] mount [conds]* [device] [ -> [conds] path],
|
||||
[audit] [deny] remount [conds]* [path],
|
||||
[audit] [deny] umount [conds]* [path],
|
||||
[audit] [deny] pivotroot [oldroot=<value>] <path>
|
||||
|
||||
remount is just a short cut for mount options=remount
|
||||
|
||||
where [conds] can be
|
||||
fstype=<expr>
|
||||
options=<expr>
|
||||
|
||||
Example mount commands
|
||||
mount, # allow all mounts, but not umount or pivotroot
|
||||
|
||||
mount fstype=procfs, # allow mounting procfs anywhere
|
||||
|
||||
mount options=(bind, ro) /foo -> /bar, # readonly bind mount
|
||||
|
||||
mount /dev/sda -> /mnt,
|
||||
|
||||
mount /dev/sd** -> /mnt/**,
|
||||
|
||||
mount fstype=overlayfs options=(rw,upperdir=/tmp/upper/,lowerdir=/) -> /mnt/
|
||||
|
||||
umount,
|
||||
|
||||
umount /m*,
|
||||
|
||||
See the apparmor userspace for full documentation
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
Acked-by: Kees Cook <kees@ubuntu.com>
|
||||
---
|
||||
security/apparmor/Makefile | 2 +-
|
||||
security/apparmor/apparmorfs.c | 13 +
|
||||
security/apparmor/audit.c | 4 +
|
||||
security/apparmor/domain.c | 2 +-
|
||||
security/apparmor/include/apparmor.h | 3 +-
|
||||
security/apparmor/include/audit.h | 11 +
|
||||
security/apparmor/include/domain.h | 2 +
|
||||
security/apparmor/include/mount.h | 54 +++
|
||||
security/apparmor/lsm.c | 59 ++++
|
||||
security/apparmor/mount.c | 620 ++++++++++++++++++++++++++++++++++
|
||||
10 files changed, 767 insertions(+), 3 deletions(-)
|
||||
create mode 100644 security/apparmor/include/mount.h
|
||||
create mode 100644 security/apparmor/mount.c
|
||||
|
||||
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
|
||||
index 19daa85..63e0a4c 100644
|
||||
--- a/security/apparmor/Makefile
|
||||
+++ b/security/apparmor/Makefile
|
||||
@@ -4,7 +4,7 @@ obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
|
||||
|
||||
apparmor-y := apparmorfs.o audit.o capability.o context.o ipc.o lib.o match.o \
|
||||
path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
|
||||
- resource.o sid.o file.o net.o
|
||||
+ resource.o sid.o file.o net.o mount.o
|
||||
|
||||
clean-files := capability_names.h rlim_names.h net_names.h
|
||||
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 114fb23..ee77ec9 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -426,10 +426,23 @@ static struct aa_fs_entry aa_fs_entry_domain[] = {
|
||||
{ }
|
||||
};
|
||||
|
||||
+static struct aa_fs_entry aa_fs_entry_mount[] = {
|
||||
+ AA_FS_FILE_STRING("mask", "mount umount"),
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
+static struct aa_fs_entry aa_fs_entry_namespaces[] = {
|
||||
+ AA_FS_FILE_BOOLEAN("profile", 1),
|
||||
+ AA_FS_FILE_BOOLEAN("pivot_root", 1),
|
||||
+ { }
|
||||
+};
|
||||
+
|
||||
static struct aa_fs_entry aa_fs_entry_features[] = {
|
||||
AA_FS_DIR("domain", aa_fs_entry_domain),
|
||||
AA_FS_DIR("file", aa_fs_entry_file),
|
||||
AA_FS_DIR("network", aa_fs_entry_network),
|
||||
+ AA_FS_DIR("mount", aa_fs_entry_mount),
|
||||
+ AA_FS_DIR("namespaces", aa_fs_entry_namespaces),
|
||||
AA_FS_FILE_U64("capability", VFS_CAP_FLAGS_MASK),
|
||||
AA_FS_DIR("rlimit", aa_fs_entry_rlimit),
|
||||
{ }
|
||||
diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
|
||||
index 3ae28db..e267963 100644
|
||||
--- a/security/apparmor/audit.c
|
||||
+++ b/security/apparmor/audit.c
|
||||
@@ -44,6 +44,10 @@ const char *const op_table[] = {
|
||||
"file_mmap",
|
||||
"file_mprotect",
|
||||
|
||||
+ "pivotroot",
|
||||
+ "mount",
|
||||
+ "umount",
|
||||
+
|
||||
"create",
|
||||
"post_create",
|
||||
"bind",
|
||||
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
|
||||
index b81ea10..afa8671 100644
|
||||
--- a/security/apparmor/domain.c
|
||||
+++ b/security/apparmor/domain.c
|
||||
@@ -242,7 +242,7 @@ static const char *next_name(int xtype, const char *name)
|
||||
*
|
||||
* Returns: refcounted profile, or NULL on failure (MAYBE NULL)
|
||||
*/
|
||||
-static struct aa_profile *x_table_lookup(struct aa_profile *profile, u32 xindex)
|
||||
+struct aa_profile *x_table_lookup(struct aa_profile *profile, u32 xindex)
|
||||
{
|
||||
struct aa_profile *new_profile = NULL;
|
||||
struct aa_namespace *ns = profile->ns;
|
||||
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
|
||||
index 40aedd9..e243d96 100644
|
||||
--- a/security/apparmor/include/apparmor.h
|
||||
+++ b/security/apparmor/include/apparmor.h
|
||||
@@ -29,8 +29,9 @@
|
||||
#define AA_CLASS_NET 4
|
||||
#define AA_CLASS_RLIMITS 5
|
||||
#define AA_CLASS_DOMAIN 6
|
||||
+#define AA_CLASS_MOUNT 7
|
||||
|
||||
-#define AA_CLASS_LAST AA_CLASS_DOMAIN
|
||||
+#define AA_CLASS_LAST AA_CLASS_MOUNT
|
||||
|
||||
/* Control parameters settable through module/boot flags */
|
||||
extern enum audit_mode aa_g_audit;
|
||||
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
|
||||
index 17734f9..66a738c 100644
|
||||
--- a/security/apparmor/include/audit.h
|
||||
+++ b/security/apparmor/include/audit.h
|
||||
@@ -73,6 +73,10 @@ enum aa_ops {
|
||||
OP_FMMAP,
|
||||
OP_FMPROT,
|
||||
|
||||
+ OP_PIVOTROOT,
|
||||
+ OP_MOUNT,
|
||||
+ OP_UMOUNT,
|
||||
+
|
||||
OP_CREATE,
|
||||
OP_POST_CREATE,
|
||||
OP_BIND,
|
||||
@@ -122,6 +126,13 @@ struct apparmor_audit_data {
|
||||
unsigned long max;
|
||||
} rlim;
|
||||
struct {
|
||||
+ const char *src_name;
|
||||
+ const char *type;
|
||||
+ const char *trans;
|
||||
+ const char *data;
|
||||
+ unsigned long flags;
|
||||
+ } mnt;
|
||||
+ struct {
|
||||
const char *target;
|
||||
u32 request;
|
||||
u32 denied;
|
||||
diff --git a/security/apparmor/include/domain.h b/security/apparmor/include/domain.h
|
||||
index de04464..a3f70c5 100644
|
||||
--- a/security/apparmor/include/domain.h
|
||||
+++ b/security/apparmor/include/domain.h
|
||||
@@ -23,6 +23,8 @@ struct aa_domain {
|
||||
char **table;
|
||||
};
|
||||
|
||||
+struct aa_profile *x_table_lookup(struct aa_profile *profile, u32 xindex);
|
||||
+
|
||||
int apparmor_bprm_set_creds(struct linux_binprm *bprm);
|
||||
int apparmor_bprm_secureexec(struct linux_binprm *bprm);
|
||||
void apparmor_bprm_committing_creds(struct linux_binprm *bprm);
|
||||
diff --git a/security/apparmor/include/mount.h b/security/apparmor/include/mount.h
|
||||
new file mode 100644
|
||||
index 0000000..bc17a53
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/include/mount.h
|
||||
@@ -0,0 +1,54 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor file mediation function definitions.
|
||||
+ *
|
||||
+ * Copyright 2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#ifndef __AA_MOUNT_H
|
||||
+#define __AA_MOUNT_H
|
||||
+
|
||||
+#include <linux/fs.h>
|
||||
+#include <linux/path.h>
|
||||
+
|
||||
+#include "domain.h"
|
||||
+#include "policy.h"
|
||||
+
|
||||
+/* mount perms */
|
||||
+#define AA_MAY_PIVOTROOT 0x01
|
||||
+#define AA_MAY_MOUNT 0x02
|
||||
+#define AA_MAY_UMOUNT 0x04
|
||||
+#define AA_AUDIT_DATA 0x40
|
||||
+#define AA_CONT_MATCH 0x40
|
||||
+
|
||||
+#define AA_MS_IGNORE_MASK (MS_KERNMOUNT | MS_NOSEC | MS_ACTIVE | MS_BORN)
|
||||
+
|
||||
+int aa_remount(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags, void *data);
|
||||
+
|
||||
+int aa_bind_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *old_name, unsigned long flags);
|
||||
+
|
||||
+
|
||||
+int aa_mount_change_type(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags);
|
||||
+
|
||||
+int aa_move_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *old_name);
|
||||
+
|
||||
+int aa_new_mount(struct aa_profile *profile, const char *dev_name,
|
||||
+ struct path *path, const char *type, unsigned long flags,
|
||||
+ void *data);
|
||||
+
|
||||
+int aa_umount(struct aa_profile *profile, struct vfsmount *mnt, int flags);
|
||||
+
|
||||
+int aa_pivotroot(struct aa_profile *profile, struct path *old_path,
|
||||
+ struct path *new_path);
|
||||
+
|
||||
+#endif /* __AA_MOUNT_H */
|
||||
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
|
||||
index a172d01..5da8af9 100644
|
||||
--- a/security/apparmor/lsm.c
|
||||
+++ b/security/apparmor/lsm.c
|
||||
@@ -36,6 +36,7 @@
|
||||
#include "include/path.h"
|
||||
#include "include/policy.h"
|
||||
#include "include/procattr.h"
|
||||
+#include "include/mount.h"
|
||||
|
||||
/* Flag indicating whether initialization completed */
|
||||
int apparmor_initialized __initdata;
|
||||
@@ -504,6 +505,60 @@ static int apparmor_file_mprotect(struct vm_area_struct *vma,
|
||||
!(vma->vm_flags & VM_SHARED) ? MAP_PRIVATE : 0);
|
||||
}
|
||||
|
||||
+static int apparmor_sb_mount(char *dev_name, struct path *path, char *type,
|
||||
+ unsigned long flags, void *data)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ /* Discard magic */
|
||||
+ if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
|
||||
+ flags &= ~MS_MGC_MSK;
|
||||
+
|
||||
+ flags &= ~AA_MS_IGNORE_MASK;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile)) {
|
||||
+ if (flags & MS_REMOUNT)
|
||||
+ error = aa_remount(profile, path, flags, data);
|
||||
+ else if (flags & MS_BIND)
|
||||
+ error = aa_bind_mount(profile, path, dev_name, flags);
|
||||
+ else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE |
|
||||
+ MS_UNBINDABLE))
|
||||
+ error = aa_mount_change_type(profile, path, flags);
|
||||
+ else if (flags & MS_MOVE)
|
||||
+ error = aa_move_mount(profile, path, dev_name);
|
||||
+ else
|
||||
+ error = aa_new_mount(profile, dev_name, path, type,
|
||||
+ flags, data);
|
||||
+ }
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+static int apparmor_sb_umount(struct vfsmount *mnt, int flags)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_umount(profile, mnt, flags);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+static int apparmor_sb_pivotroot(struct path *old_path, struct path *new_path)
|
||||
+{
|
||||
+ struct aa_profile *profile;
|
||||
+ int error = 0;
|
||||
+
|
||||
+ profile = __aa_current_profile();
|
||||
+ if (!unconfined(profile))
|
||||
+ error = aa_pivotroot(profile, old_path, new_path);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
static int apparmor_getprocattr(struct task_struct *task, char *name,
|
||||
char **value)
|
||||
{
|
||||
@@ -737,6 +792,10 @@ static struct security_operations apparmor_ops = {
|
||||
.capget = apparmor_capget,
|
||||
.capable = apparmor_capable,
|
||||
|
||||
+ .sb_mount = apparmor_sb_mount,
|
||||
+ .sb_umount = apparmor_sb_umount,
|
||||
+ .sb_pivotroot = apparmor_sb_pivotroot,
|
||||
+
|
||||
.path_link = apparmor_path_link,
|
||||
.path_unlink = apparmor_path_unlink,
|
||||
.path_symlink = apparmor_path_symlink,
|
||||
diff --git a/security/apparmor/mount.c b/security/apparmor/mount.c
|
||||
new file mode 100644
|
||||
index 0000000..478aa4d
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/mount.c
|
||||
@@ -0,0 +1,620 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor mediation of files
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2012 Canonical Ltd.
|
||||
+ *
|
||||
+ * This program is free software; you can redistribute it and/or
|
||||
+ * modify it under the terms of the GNU General Public License as
|
||||
+ * published by the Free Software Foundation, version 2 of the
|
||||
+ * License.
|
||||
+ */
|
||||
+
|
||||
+#include <linux/fs.h>
|
||||
+#include <linux/mount.h>
|
||||
+#include <linux/namei.h>
|
||||
+
|
||||
+#include "include/apparmor.h"
|
||||
+#include "include/audit.h"
|
||||
+#include "include/context.h"
|
||||
+#include "include/domain.h"
|
||||
+#include "include/file.h"
|
||||
+#include "include/match.h"
|
||||
+#include "include/mount.h"
|
||||
+#include "include/path.h"
|
||||
+#include "include/policy.h"
|
||||
+
|
||||
+
|
||||
+static void audit_mnt_flags(struct audit_buffer *ab, unsigned long flags)
|
||||
+{
|
||||
+ if (flags & MS_RDONLY)
|
||||
+ audit_log_format(ab, "ro");
|
||||
+ else
|
||||
+ audit_log_format(ab, "rw");
|
||||
+ if (flags & MS_NOSUID)
|
||||
+ audit_log_format(ab, ", nosuid");
|
||||
+ if (flags & MS_NODEV)
|
||||
+ audit_log_format(ab, ", nodev");
|
||||
+ if (flags & MS_NOEXEC)
|
||||
+ audit_log_format(ab, ", noexec");
|
||||
+ if (flags & MS_SYNCHRONOUS)
|
||||
+ audit_log_format(ab, ", sync");
|
||||
+ if (flags & MS_REMOUNT)
|
||||
+ audit_log_format(ab, ", remount");
|
||||
+ if (flags & MS_MANDLOCK)
|
||||
+ audit_log_format(ab, ", mand");
|
||||
+ if (flags & MS_DIRSYNC)
|
||||
+ audit_log_format(ab, ", dirsync");
|
||||
+ if (flags & MS_NOATIME)
|
||||
+ audit_log_format(ab, ", noatime");
|
||||
+ if (flags & MS_NODIRATIME)
|
||||
+ audit_log_format(ab, ", nodiratime");
|
||||
+ if (flags & MS_BIND)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rbind" : ", bind");
|
||||
+ if (flags & MS_MOVE)
|
||||
+ audit_log_format(ab, ", move");
|
||||
+ if (flags & MS_SILENT)
|
||||
+ audit_log_format(ab, ", silent");
|
||||
+ if (flags & MS_POSIXACL)
|
||||
+ audit_log_format(ab, ", acl");
|
||||
+ if (flags & MS_UNBINDABLE)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", runbindable" :
|
||||
+ ", unbindable");
|
||||
+ if (flags & MS_PRIVATE)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rprivate" :
|
||||
+ ", private");
|
||||
+ if (flags & MS_SLAVE)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rslave" :
|
||||
+ ", slave");
|
||||
+ if (flags & MS_SHARED)
|
||||
+ audit_log_format(ab, flags & MS_REC ? ", rshared" :
|
||||
+ ", shared");
|
||||
+ if (flags & MS_RELATIME)
|
||||
+ audit_log_format(ab, ", relatime");
|
||||
+ if (flags & MS_I_VERSION)
|
||||
+ audit_log_format(ab, ", iversion");
|
||||
+ if (flags & MS_STRICTATIME)
|
||||
+ audit_log_format(ab, ", strictatime");
|
||||
+ if (flags & MS_NOUSER)
|
||||
+ audit_log_format(ab, ", nouser");
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * audit_cb - call back for mount specific audit fields
|
||||
+ * @ab: audit_buffer (NOT NULL)
|
||||
+ * @va: audit struct to audit values of (NOT NULL)
|
||||
+ */
|
||||
+static void audit_cb(struct audit_buffer *ab, void *va)
|
||||
+{
|
||||
+ struct common_audit_data *sa = va;
|
||||
+
|
||||
+ if (sa->aad->mnt.type) {
|
||||
+ audit_log_format(ab, " fstype=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.type);
|
||||
+ }
|
||||
+ if (sa->aad->mnt.src_name) {
|
||||
+ audit_log_format(ab, " srcname=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.src_name);
|
||||
+ }
|
||||
+ if (sa->aad->mnt.trans) {
|
||||
+ audit_log_format(ab, " trans=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.trans);
|
||||
+ }
|
||||
+ if (sa->aad->mnt.flags || sa->aad->op == OP_MOUNT) {
|
||||
+ audit_log_format(ab, " flags=\"");
|
||||
+ audit_mnt_flags(ab, sa->aad->mnt.flags);
|
||||
+ audit_log_format(ab, "\"");
|
||||
+ }
|
||||
+ if (sa->aad->mnt.data) {
|
||||
+ audit_log_format(ab, " options=");
|
||||
+ audit_log_untrustedstring(ab, sa->aad->mnt.data);
|
||||
+ }
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * audit_mount - handle the auditing of mount operations
|
||||
+ * @profile: the profile being enforced (NOT NULL)
|
||||
+ * @gfp: allocation flags
|
||||
+ * @op: operation being mediated (NOT NULL)
|
||||
+ * @name: name of object being mediated (MAYBE NULL)
|
||||
+ * @src_name: src_name of object being mediated (MAYBE_NULL)
|
||||
+ * @type: type of filesystem (MAYBE_NULL)
|
||||
+ * @trans: name of trans (MAYBE NULL)
|
||||
+ * @flags: filesystem idependent mount flags
|
||||
+ * @data: filesystem mount flags
|
||||
+ * @request: permissions requested
|
||||
+ * @perms: the permissions computed for the request (NOT NULL)
|
||||
+ * @info: extra information message (MAYBE NULL)
|
||||
+ * @error: 0 if operation allowed else failure error code
|
||||
+ *
|
||||
+ * Returns: %0 or error on failure
|
||||
+ */
|
||||
+static int audit_mount(struct aa_profile *profile, gfp_t gfp, int op,
|
||||
+ const char *name, const char *src_name,
|
||||
+ const char *type, const char *trans,
|
||||
+ unsigned long flags, const void *data, u32 request,
|
||||
+ struct file_perms *perms, const char *info, int error)
|
||||
+{
|
||||
+ int audit_type = AUDIT_APPARMOR_AUTO;
|
||||
+ struct common_audit_data sa = { };
|
||||
+ struct apparmor_audit_data aad = { };
|
||||
+
|
||||
+ if (likely(!error)) {
|
||||
+ u32 mask = perms->audit;
|
||||
+
|
||||
+ if (unlikely(AUDIT_MODE(profile) == AUDIT_ALL))
|
||||
+ mask = 0xffff;
|
||||
+
|
||||
+ /* mask off perms that are not being force audited */
|
||||
+ request &= mask;
|
||||
+
|
||||
+ if (likely(!request))
|
||||
+ return 0;
|
||||
+ audit_type = AUDIT_APPARMOR_AUDIT;
|
||||
+ } else {
|
||||
+ /* only report permissions that were denied */
|
||||
+ request = request & ~perms->allow;
|
||||
+
|
||||
+ if (request & perms->kill)
|
||||
+ audit_type = AUDIT_APPARMOR_KILL;
|
||||
+
|
||||
+ /* quiet known rejects, assumes quiet and kill do not overlap */
|
||||
+ if ((request & perms->quiet) &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_NOQUIET &&
|
||||
+ AUDIT_MODE(profile) != AUDIT_ALL)
|
||||
+ request &= ~perms->quiet;
|
||||
+
|
||||
+ if (!request)
|
||||
+ return COMPLAIN_MODE(profile) ?
|
||||
+ complain_error(error) : error;
|
||||
+ }
|
||||
+
|
||||
+ sa.type = LSM_AUDIT_DATA_NONE;
|
||||
+ sa.aad = &aad;
|
||||
+ sa.aad->op = op;
|
||||
+ sa.aad->name = name;
|
||||
+ sa.aad->mnt.src_name = src_name;
|
||||
+ sa.aad->mnt.type = type;
|
||||
+ sa.aad->mnt.trans = trans;
|
||||
+ sa.aad->mnt.flags = flags;
|
||||
+ if (data && (perms->audit & AA_AUDIT_DATA))
|
||||
+ sa.aad->mnt.data = data;
|
||||
+ sa.aad->info = info;
|
||||
+ sa.aad->error = error;
|
||||
+
|
||||
+ return aa_audit(audit_type, profile, gfp, &sa, audit_cb);
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * match_mnt_flags - Do an ordered match on mount flags
|
||||
+ * @dfa: dfa to match against
|
||||
+ * @state: state to start in
|
||||
+ * @flags: mount flags to match against
|
||||
+ *
|
||||
+ * Mount flags are encoded as an ordered match. This is done instead of
|
||||
+ * checking against a simple bitmask, to allow for logical operations
|
||||
+ * on the flags.
|
||||
+ *
|
||||
+ * Returns: next state after flags match
|
||||
+ */
|
||||
+static unsigned int match_mnt_flags(struct aa_dfa *dfa, unsigned int state,
|
||||
+ unsigned long flags)
|
||||
+{
|
||||
+ unsigned int i;
|
||||
+
|
||||
+ for (i = 0; i <= 31 ; ++i) {
|
||||
+ if ((1 << i) & flags)
|
||||
+ state = aa_dfa_next(dfa, state, i + 1);
|
||||
+ }
|
||||
+
|
||||
+ return state;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * compute_mnt_perms - compute mount permission associated with @state
|
||||
+ * @dfa: dfa to match against (NOT NULL)
|
||||
+ * @state: state match finished in
|
||||
+ *
|
||||
+ * Returns: mount permissions
|
||||
+ */
|
||||
+static struct file_perms compute_mnt_perms(struct aa_dfa *dfa,
|
||||
+ unsigned int state)
|
||||
+{
|
||||
+ struct file_perms perms;
|
||||
+
|
||||
+ perms.kill = 0;
|
||||
+ perms.allow = dfa_user_allow(dfa, state);
|
||||
+ perms.audit = dfa_user_audit(dfa, state);
|
||||
+ perms.quiet = dfa_user_quiet(dfa, state);
|
||||
+ perms.xindex = dfa_user_xindex(dfa, state);
|
||||
+
|
||||
+ return perms;
|
||||
+}
|
||||
+
|
||||
+static const char const *mnt_info_table[] = {
|
||||
+ "match succeeded",
|
||||
+ "failed mntpnt match",
|
||||
+ "failed srcname match",
|
||||
+ "failed type match",
|
||||
+ "failed flags match",
|
||||
+ "failed data match"
|
||||
+};
|
||||
+
|
||||
+/*
|
||||
+ * Returns 0 on success else element that match failed in, this is the
|
||||
+ * index into the mnt_info_table above
|
||||
+ */
|
||||
+static int do_match_mnt(struct aa_dfa *dfa, unsigned int start,
|
||||
+ const char *mntpnt, const char *devname,
|
||||
+ const char *type, unsigned long flags,
|
||||
+ void *data, bool binary, struct file_perms *perms)
|
||||
+{
|
||||
+ unsigned int state;
|
||||
+
|
||||
+ state = aa_dfa_match(dfa, start, mntpnt);
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 1;
|
||||
+
|
||||
+ if (devname)
|
||||
+ state = aa_dfa_match(dfa, state, devname);
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 2;
|
||||
+
|
||||
+ if (type)
|
||||
+ state = aa_dfa_match(dfa, state, type);
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 3;
|
||||
+
|
||||
+ state = match_mnt_flags(dfa, state, flags);
|
||||
+ if (!state)
|
||||
+ return 4;
|
||||
+ *perms = compute_mnt_perms(dfa, state);
|
||||
+ if (perms->allow & AA_MAY_MOUNT)
|
||||
+ return 0;
|
||||
+
|
||||
+ /* only match data if not binary and the DFA flags data is expected */
|
||||
+ if (data && !binary && (perms->allow & AA_CONT_MATCH)) {
|
||||
+ state = aa_dfa_null_transition(dfa, state);
|
||||
+ if (!state)
|
||||
+ return 4;
|
||||
+
|
||||
+ state = aa_dfa_match(dfa, state, data);
|
||||
+ if (!state)
|
||||
+ return 5;
|
||||
+ *perms = compute_mnt_perms(dfa, state);
|
||||
+ if (perms->allow & AA_MAY_MOUNT)
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
+ /* failed at end of flags match */
|
||||
+ return 4;
|
||||
+}
|
||||
+
|
||||
+/**
|
||||
+ * match_mnt - handle path matching for mount
|
||||
+ * @profile: the confining profile
|
||||
+ * @mntpnt: string for the mntpnt (NOT NULL)
|
||||
+ * @devname: string for the devname/src_name (MAYBE NULL)
|
||||
+ * @type: string for the dev type (MAYBE NULL)
|
||||
+ * @flags: mount flags to match
|
||||
+ * @data: fs mount data (MAYBE NULL)
|
||||
+ * @binary: whether @data is binary
|
||||
+ * @perms: Returns: permission found by the match
|
||||
+ * @info: Returns: infomation string about the match for logging
|
||||
+ *
|
||||
+ * Returns: 0 on success else error
|
||||
+ */
|
||||
+static int match_mnt(struct aa_profile *profile, const char *mntpnt,
|
||||
+ const char *devname, const char *type,
|
||||
+ unsigned long flags, void *data, bool binary,
|
||||
+ struct file_perms *perms, const char **info)
|
||||
+{
|
||||
+ int pos;
|
||||
+
|
||||
+ if (!profile->policy.dfa)
|
||||
+ return -EACCES;
|
||||
+
|
||||
+ pos = do_match_mnt(profile->policy.dfa,
|
||||
+ profile->policy.start[AA_CLASS_MOUNT],
|
||||
+ mntpnt, devname, type, flags, data, binary, perms);
|
||||
+ if (pos) {
|
||||
+ *info = mnt_info_table[pos];
|
||||
+ return -EACCES;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int path_flags(struct aa_profile *profile, struct path *path)
|
||||
+{
|
||||
+ return profile->path_flags |
|
||||
+ S_ISDIR(path->dentry->d_inode->i_mode) ? PATH_IS_DIR : 0;
|
||||
+}
|
||||
+
|
||||
+int aa_remount(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags, void *data)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ const char *name, *info = NULL;
|
||||
+ char *buffer = NULL;
|
||||
+ int binary, error;
|
||||
+
|
||||
+ binary = path->dentry->d_sb->s_type->fs_flags & FS_BINARY_MOUNTDATA;
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, NULL, NULL, flags, data, binary,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, NULL, NULL,
|
||||
+ NULL, flags, data, AA_MAY_MOUNT, &perms, info,
|
||||
+ error);
|
||||
+ kfree(buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_bind_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *dev_name, unsigned long flags)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL, *old_buffer = NULL;
|
||||
+ const char *name, *old_name = NULL, *info = NULL;
|
||||
+ struct path old_path;
|
||||
+ int error;
|
||||
+
|
||||
+ if (!dev_name || !*dev_name)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ flags &= MS_REC | MS_BIND;
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = kern_path(dev_name, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(&old_path, path_flags(profile, &old_path),
|
||||
+ &old_buffer, &old_name, &info);
|
||||
+ path_put(&old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, old_name, NULL, flags, NULL, 0,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, old_name,
|
||||
+ NULL, NULL, flags, NULL, AA_MAY_MOUNT, &perms,
|
||||
+ info, error);
|
||||
+ kfree(buffer);
|
||||
+ kfree(old_buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_mount_change_type(struct aa_profile *profile, struct path *path,
|
||||
+ unsigned long flags)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL;
|
||||
+ const char *name, *info = NULL;
|
||||
+ int error;
|
||||
+
|
||||
+ /* These are the flags allowed by do_change_type() */
|
||||
+ flags &= (MS_REC | MS_SILENT | MS_SHARED | MS_PRIVATE | MS_SLAVE |
|
||||
+ MS_UNBINDABLE);
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, NULL, NULL, flags, NULL, 0, &perms,
|
||||
+ &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, NULL, NULL,
|
||||
+ NULL, flags, NULL, AA_MAY_MOUNT, &perms, info,
|
||||
+ error);
|
||||
+ kfree(buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_move_mount(struct aa_profile *profile, struct path *path,
|
||||
+ const char *orig_name)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL, *old_buffer = NULL;
|
||||
+ const char *name, *old_name = NULL, *info = NULL;
|
||||
+ struct path old_path;
|
||||
+ int error;
|
||||
+
|
||||
+ if (!orig_name || !*orig_name)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = kern_path(orig_name, LOOKUP_FOLLOW, &old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(&old_path, path_flags(profile, &old_path),
|
||||
+ &old_buffer, &old_name, &info);
|
||||
+ path_put(&old_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, old_name, NULL, MS_MOVE, NULL, 0,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, old_name,
|
||||
+ NULL, NULL, MS_MOVE, NULL, AA_MAY_MOUNT, &perms,
|
||||
+ info, error);
|
||||
+ kfree(buffer);
|
||||
+ kfree(old_buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_new_mount(struct aa_profile *profile, const char *orig_dev_name,
|
||||
+ struct path *path, const char *type, unsigned long flags,
|
||||
+ void *data)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL, *dev_buffer = NULL;
|
||||
+ const char *name = NULL, *dev_name = NULL, *info = NULL;
|
||||
+ int binary = 1;
|
||||
+ int error;
|
||||
+
|
||||
+ dev_name = orig_dev_name;
|
||||
+ if (type) {
|
||||
+ int requires_dev;
|
||||
+ struct file_system_type *fstype = get_fs_type(type);
|
||||
+ if (!fstype)
|
||||
+ return -ENODEV;
|
||||
+
|
||||
+ binary = fstype->fs_flags & FS_BINARY_MOUNTDATA;
|
||||
+ requires_dev = fstype->fs_flags & FS_REQUIRES_DEV;
|
||||
+ put_filesystem(fstype);
|
||||
+
|
||||
+ if (requires_dev) {
|
||||
+ struct path dev_path;
|
||||
+
|
||||
+ if (!dev_name || !*dev_name) {
|
||||
+ error = -ENOENT;
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ error = kern_path(dev_name, LOOKUP_FOLLOW, &dev_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(&dev_path,
|
||||
+ path_flags(profile, &dev_path),
|
||||
+ &dev_buffer, &dev_name, &info);
|
||||
+ path_put(&dev_path);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ error = aa_path_name(path, path_flags(profile, path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = match_mnt(profile, name, dev_name, type, flags, data, binary,
|
||||
+ &perms, &info);
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_MOUNT, name, dev_name,
|
||||
+ type, NULL, flags, data, AA_MAY_MOUNT, &perms, info,
|
||||
+ error);
|
||||
+ kfree(buffer);
|
||||
+ kfree(dev_buffer);
|
||||
+
|
||||
+out:
|
||||
+ return error;
|
||||
+
|
||||
+}
|
||||
+
|
||||
+int aa_umount(struct aa_profile *profile, struct vfsmount *mnt, int flags)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ char *buffer = NULL;
|
||||
+ const char *name, *info = NULL;
|
||||
+ int error;
|
||||
+
|
||||
+ struct path path = { mnt, mnt->mnt_root };
|
||||
+ error = aa_path_name(&path, path_flags(profile, &path), &buffer, &name,
|
||||
+ &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ if (!error && profile->policy.dfa) {
|
||||
+ unsigned int state;
|
||||
+ state = aa_dfa_match(profile->policy.dfa,
|
||||
+ profile->policy.start[AA_CLASS_MOUNT],
|
||||
+ name);
|
||||
+ perms = compute_mnt_perms(profile->policy.dfa, state);
|
||||
+ }
|
||||
+
|
||||
+ if (AA_MAY_UMOUNT & ~perms.allow)
|
||||
+ error = -EACCES;
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_UMOUNT, name, NULL, NULL,
|
||||
+ NULL, 0, NULL, AA_MAY_UMOUNT, &perms, info, error);
|
||||
+ kfree(buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
+
|
||||
+int aa_pivotroot(struct aa_profile *profile, struct path *old_path,
|
||||
+ struct path *new_path)
|
||||
+{
|
||||
+ struct file_perms perms = { };
|
||||
+ struct aa_profile *target = NULL;
|
||||
+ char *old_buffer = NULL, *new_buffer = NULL;
|
||||
+ const char *old_name, *new_name = NULL, *info = NULL;
|
||||
+ int error;
|
||||
+
|
||||
+ error = aa_path_name(old_path, path_flags(profile, old_path),
|
||||
+ &old_buffer, &old_name, &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ error = aa_path_name(new_path, path_flags(profile, new_path),
|
||||
+ &new_buffer, &new_name, &info);
|
||||
+ if (error)
|
||||
+ goto audit;
|
||||
+
|
||||
+ if (profile->policy.dfa) {
|
||||
+ unsigned int state;
|
||||
+ state = aa_dfa_match(profile->policy.dfa,
|
||||
+ profile->policy.start[AA_CLASS_MOUNT],
|
||||
+ new_name);
|
||||
+ state = aa_dfa_null_transition(profile->policy.dfa, state);
|
||||
+ state = aa_dfa_match(profile->policy.dfa, state, old_name);
|
||||
+ perms = compute_mnt_perms(profile->policy.dfa, state);
|
||||
+ }
|
||||
+
|
||||
+ if (AA_MAY_PIVOTROOT & perms.allow) {
|
||||
+ if ((perms.xindex & AA_X_TYPE_MASK) == AA_X_TABLE) {
|
||||
+ target = x_table_lookup(profile, perms.xindex);
|
||||
+ if (!target)
|
||||
+ error = -ENOENT;
|
||||
+ else
|
||||
+ error = aa_replace_current_profile(target);
|
||||
+ }
|
||||
+ } else
|
||||
+ error = -EACCES;
|
||||
+
|
||||
+audit:
|
||||
+ error = audit_mount(profile, GFP_KERNEL, OP_PIVOTROOT, new_name,
|
||||
+ old_name, NULL, target ? target->base.name : NULL,
|
||||
+ 0, NULL, AA_MAY_PIVOTROOT, &perms, info, error);
|
||||
+ aa_put_profile(target);
|
||||
+ kfree(old_buffer);
|
||||
+ kfree(new_buffer);
|
||||
+
|
||||
+ return error;
|
||||
+}
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -0,0 +1,70 @@
|
||||
From 663d5bbe6197bf990721c37ec877ea8ba5840202 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 24 Oct 2012 06:27:32 -0700
|
||||
Subject: [PATCH 6/6] apparmor: fix IRQ stack overflow during free_profile
|
||||
|
||||
BugLink: http://bugs.launchpad.net/bugs/1056078
|
||||
|
||||
Profile replacement can cause long chains of profiles to build up when
|
||||
the profile being replaced is pinned. When the pinned profile is finally
|
||||
freed, it puts the reference to its replacement, which may in turn nest
|
||||
another call to free_profile on the stack. Because this may happen for
|
||||
each profile in the replacedby chain this can result in a recusion that
|
||||
causes the stack to overflow.
|
||||
|
||||
Break this nesting by directly walking the chain of replacedby profiles
|
||||
(ie. use iteration instead of recursion to free the list). This results
|
||||
in at most 2 levels of free_profile being called, while freeing a
|
||||
replacedby chain.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
Signed-off-by: James Morris <james.l.morris@oracle.com>
|
||||
---
|
||||
security/apparmor/policy.c | 24 +++++++++++++++++++++++-
|
||||
1 file changed, 23 insertions(+), 1 deletion(-)
|
||||
|
||||
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
|
||||
index 27c8161..56e5304 100644
|
||||
--- a/security/apparmor/policy.c
|
||||
+++ b/security/apparmor/policy.c
|
||||
@@ -724,6 +724,8 @@ fail:
|
||||
*/
|
||||
static void free_profile(struct aa_profile *profile)
|
||||
{
|
||||
+ struct aa_profile *p;
|
||||
+
|
||||
AA_DEBUG("%s(%p)\n", __func__, profile);
|
||||
|
||||
if (!profile)
|
||||
@@ -752,7 +754,27 @@ static void free_profile(struct aa_profile *profile)
|
||||
aa_put_dfa(profile->xmatch);
|
||||
aa_put_dfa(profile->policy.dfa);
|
||||
|
||||
- aa_put_profile(profile->replacedby);
|
||||
+ /* put the profile reference for replacedby, but not via
|
||||
+ * put_profile(kref_put).
|
||||
+ * replacedby can form a long chain that can result in cascading
|
||||
+ * frees that blows the stack because kref_put makes a nested fn
|
||||
+ * call (it looks like recursion, with free_profile calling
|
||||
+ * free_profile) for each profile in the chain lp#1056078.
|
||||
+ */
|
||||
+ for (p = profile->replacedby; p; ) {
|
||||
+ if (atomic_dec_and_test(&p->base.count.refcount)) {
|
||||
+ /* no more refs on p, grab its replacedby */
|
||||
+ struct aa_profile *next = p->replacedby;
|
||||
+ /* break the chain */
|
||||
+ p->replacedby = NULL;
|
||||
+ /* now free p, chain is broken */
|
||||
+ free_profile(p);
|
||||
+
|
||||
+ /* follow up with next profile in the chain */
|
||||
+ p = next;
|
||||
+ } else
|
||||
+ break;
|
||||
+ }
|
||||
|
||||
kzfree(profile);
|
||||
}
|
||||
--
|
||||
1.7.10.4
|
||||
|
@@ -10,6 +10,7 @@ AM_INIT_AUTOMAKE(libapparmor1, apparmor_version)
|
||||
AM_PROG_LEX
|
||||
AC_PROG_YACC
|
||||
AC_PROG_SED
|
||||
PKG_PROG_PKG_CONFIG
|
||||
|
||||
AC_PATH_PROG([SWIG], [swig])
|
||||
|
||||
|
@@ -99,16 +99,25 @@ Insufficient kernel memory was available.
|
||||
|
||||
=item B<EPERM>
|
||||
|
||||
The calling application is not confined by apparmor.
|
||||
The calling application is not confined by apparmor, the specified
|
||||
I<subprofile> is not a I<hat profile>, the task is being ptraced and the
|
||||
tracing task does not have permission to trace the specified I<subprofile> or the no_new_privs execution bit is
|
||||
enabled.
|
||||
|
||||
=item B<ECHILD>
|
||||
|
||||
The application's profile has no hats defined for it.
|
||||
|
||||
=item B<ENOENT>
|
||||
|
||||
The specified I<subprofile> does not exist in this profile but other hats
|
||||
are defined.
|
||||
|
||||
=item B<EACCES>
|
||||
|
||||
The specified I<subprofile> does not exist in this profile or the
|
||||
process tried to change another process's domain.
|
||||
The specified magic token did not match, and permissions to change to
|
||||
the specified I<subprofile> has been denied. This will in most situations
|
||||
also result in the task being killed, to prevent brute force attacks.
|
||||
|
||||
=back
|
||||
|
||||
|
@@ -74,8 +74,9 @@ errno(3) is set appropriately.
|
||||
|
||||
=item B<EINVAL>
|
||||
|
||||
The apparmor kernel module is not loaded or the communication via the
|
||||
F</proc/*/attr/current> file did not conform to protocol.
|
||||
The apparmor kernel module is not loaded, neither a profile nor a namespace
|
||||
was specified, or the communication via the F</proc/*/attr/current> file did
|
||||
not conform to protocol.
|
||||
|
||||
=item B<ENOMEM>
|
||||
|
||||
@@ -83,12 +84,18 @@ Insufficient kernel memory was available.
|
||||
|
||||
=item B<EPERM>
|
||||
|
||||
The calling application is not confined by apparmor.
|
||||
The calling application is not confined by apparmor, or the no_new_privs
|
||||
bit is set.
|
||||
|
||||
=item B<EACCES>
|
||||
|
||||
The task does not have sufficient permissions to change its domain.
|
||||
|
||||
=item B<ENOENT>
|
||||
|
||||
The specified profile does not exist, or is not visible from the current
|
||||
Namespace.
|
||||
|
||||
=back
|
||||
|
||||
=head1 EXAMPLE
|
||||
|
@@ -1,5 +1,29 @@
|
||||
INCLUDES = $(all_includes)
|
||||
|
||||
# variables to set the library versions used by libtool
|
||||
# Use these rules to update the library version.
|
||||
# 1. Update the version information only immediately before a public release
|
||||
# of your software. More frequent updates are unnecessary, and only
|
||||
# guarantee that the current interface number gets larger faster.
|
||||
# 2. If the library source code has changed at all since the last update,
|
||||
# then
|
||||
# - increment AA_LIB_REVISION
|
||||
# 3. If any interfaces have been added, removed, or changed since the last
|
||||
# update,
|
||||
# - increment AA_LIB_CURRENT
|
||||
# - set AA_LIB_REVISION to 0.
|
||||
# 4. If any interfaces have been added since the last public release, then
|
||||
# - increment AA_LIB_AGE.
|
||||
# 5. If any interfaces have been removed or changed since the last public
|
||||
# release, then
|
||||
# - set AA_LIB_AGE to 0.
|
||||
#
|
||||
AA_LIB_CURRENT = 1
|
||||
AA_LIB_REVISION = 3
|
||||
AA_LIB_AGE = 0
|
||||
|
||||
SUFFIXES = .pc.in .pc
|
||||
|
||||
BUILT_SOURCES = grammar.h scanner.h af_protos.h
|
||||
AM_LFLAGS = -v
|
||||
AM_YFLAGS = -d -p aalogparse_
|
||||
@@ -23,15 +47,24 @@ lib_LTLIBRARIES = libapparmor.la libimmunix.la
|
||||
noinst_HEADERS = grammar.h parser.h scanner.h af_protos.h
|
||||
|
||||
libapparmor_la_SOURCES = grammar.y libaalogparse.c kernel_interface.c scanner.c
|
||||
libapparmor_la_LDFLAGS = -version-info 1:2:0 -XCClinker -dynamic \
|
||||
libapparmor_la_LDFLAGS = -version-info $(AA_LIB_CURRENT):$(AA_LIB_REVISION):$(AA_LIB_AGE) -XCClinker -dynamic \
|
||||
-Wl,--version-script=$(top_srcdir)/src/libapparmor.map -Wl,-soname=libapparmor.so.1
|
||||
|
||||
libimmunix_la_SOURCES = kernel_interface.c libimmunix_warning.c
|
||||
libimmunix_la_LDFLAGS = -version-info 1:2:0 -Wl,--version-script=$(top_srcdir)/src/libapparmor.map -Wl,-soname=libimmunix.so.1
|
||||
libimmunix_la_LDFLAGS = -version-info $(AA_LIB_CURRENT):$(AA_LIB_REVISION):$(AA_LIB_AGE) -Wl,--version-script=$(top_srcdir)/src/libapparmor.map -Wl,-soname=libimmunix.so.1
|
||||
|
||||
pkgconfigdir = $(libdir)/pkgconfig
|
||||
pkgconfig_DATA = libapparmor.pc
|
||||
|
||||
CLEANFILES = libapparmor.pc
|
||||
|
||||
%.pc: %.pc.in $(top_builddir)/config.status
|
||||
$(AM_V_GEN)cd "$(top_builddir)" && \
|
||||
$(SHELL) ./config.status --file="src/$@"
|
||||
|
||||
tst_aalogmisc_SOURCES = tst_aalogmisc.c
|
||||
tst_aalogmisc_LDADD = .libs/libapparmor.a
|
||||
check_PROGRAMS = tst_aalogmisc
|
||||
TESTS = $(check_PROGRAMS)
|
||||
|
||||
EXTRA_DIST = grammar.y scanner.l libapparmor.map
|
||||
EXTRA_DIST = grammar.y scanner.l libapparmor.map libapparmor.pc
|
||||
|
@@ -81,7 +81,7 @@ aa_record_event_type lookup_aa_event(unsigned int type)
|
||||
%type <t_str> safe_string protocol
|
||||
%token <t_long> TOK_DIGITS TOK_TYPE_UNKNOWN
|
||||
%token <t_str> TOK_QUOTED_STRING TOK_ID TOK_MODE TOK_DMESG_STAMP
|
||||
%token <t_str> TOK_AUDIT_DIGITS TOK_DATE_MONTH TOK_DATE_TIME
|
||||
%token <t_str> TOK_AUDIT_DIGITS TOK_DATE_MONTH TOK_DATE TOK_TIME
|
||||
%token <t_str> TOK_HEXSTRING TOK_TYPE_OTHER TOK_MSG_REST
|
||||
%token <t_str> TOK_IP_ADDR
|
||||
|
||||
@@ -203,7 +203,8 @@ audit_id: TOK_AUDIT TOK_OPEN_PAREN TOK_AUDIT_DIGITS TOK_PERIOD TOK_AUDIT_DIGITS
|
||||
free($7);
|
||||
} ;
|
||||
|
||||
syslog_date: TOK_DATE_MONTH TOK_DIGITS TOK_DATE_TIME { /* do nothing? */ }
|
||||
syslog_date: TOK_DATE_MONTH TOK_DIGITS TOK_TIME { /* do nothing? */ }
|
||||
| TOK_DATE TOK_TIME { /* do nothing */ }
|
||||
;
|
||||
|
||||
key_list: key
|
||||
|
@@ -1,3 +1,5 @@
|
||||
#If you update this file please update the library version in Makefile.am
|
||||
|
||||
IMMUNIX_1.0 {
|
||||
global:
|
||||
change_hat;
|
||||
|
10
libraries/libapparmor/src/libapparmor.pc.in
Normal file
10
libraries/libapparmor/src/libapparmor.pc.in
Normal file
@@ -0,0 +1,10 @@
|
||||
prefix=@prefix@
|
||||
exec_prefix=@exec_prefix@
|
||||
libdir=@libdir@
|
||||
includedir=@includedir@
|
||||
|
||||
Name: libapparmor
|
||||
Description: AppArmor library for for utility functions
|
||||
Version: @VERSION@
|
||||
Cflags: -I${includedir}
|
||||
Libs: -L${libdir} -lapparmor
|
@@ -75,10 +75,12 @@ void string_buf_append(unsigned int length, char *text)
|
||||
ws [ \t\r\n]
|
||||
|
||||
equals "="
|
||||
digits [0-9]+
|
||||
digit [[:digit:]]
|
||||
digits {digit}+
|
||||
hex [A-F0-9]
|
||||
colon ":"
|
||||
minus "-"
|
||||
plus "+"
|
||||
open_paren "("
|
||||
close_paren ")"
|
||||
ID [^ \t\n\(\)="'!]
|
||||
@@ -144,8 +146,12 @@ ip_addr [a-f[:digit:].:]{3,}
|
||||
|
||||
/* syslog tokens */
|
||||
syslog_kernel kernel{colon}
|
||||
syslog_yyyymmdd {digit}{4}{minus}{digit}{2}{minus}{digit}{2}
|
||||
syslog_date {syslog_yyyymmdd}
|
||||
syslog_month Jan(uary)?|Feb(ruary)?|Mar(ch)?|Apr(il)?|May|Jun(e)?|Jul(y)?|Aug(ust)?|Sep(tember)?|Oct(ober)?|Nov(ember)?|Dec(ember)?
|
||||
syslog_time {digits}{digits}{colon}{digits}{digits}{colon}{digits}{digits}
|
||||
hhmmss {digit}{2}{colon}{digit}{2}{colon}{digit}{2}
|
||||
timezone ({plus}|{minus}){digit}{2}{colon}{digit}{2}
|
||||
syslog_time {hhmmss}({period}{digits})?{timezone}?
|
||||
syslog_hostname [[:alnum:]_-]+
|
||||
dmesg_timestamp \[[[:digit:] ]{5,}\.[[:digit:]]{6,}\]
|
||||
|
||||
@@ -291,7 +297,9 @@ yy_flex_debug = 0;
|
||||
|
||||
{syslog_kernel} { BEGIN(dmesg_timestamp); return(TOK_SYSLOG_KERNEL); }
|
||||
{syslog_month} { yylval->t_str = strdup(yytext); return(TOK_DATE_MONTH); }
|
||||
{syslog_time} { yylval->t_str = strdup(yytext); BEGIN(hostname); return(TOK_DATE_TIME); }
|
||||
{syslog_date} { yylval->t_str = strdup(yytext); return(TOK_DATE); }
|
||||
{syslog_date}T/{syslog_time} { yylval->t_str = strndup(yytext, strlen(yytext)-1); return(TOK_DATE); }
|
||||
{syslog_time} { yylval->t_str = strdup(yytext); BEGIN(hostname); return(TOK_TIME); }
|
||||
|
||||
{audit} { yy_push_state(audit_id, yyscanner); return(TOK_AUDIT); }
|
||||
|
||||
|
@@ -0,0 +1 @@
|
||||
Jan 1 15:09:04 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_01.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
Jan 1 15:09:04+08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_02.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
Jan 1 15:09:04.562575 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_03.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
Jan 1 15:09:04.562575+08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_04.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
Jan 1 15:09:04-08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_05.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
Jan 1 15:09:04.562575-08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_06.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01 15:09:04 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_07.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01 15:09:04+08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_08.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01 15:09:04.562575 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_09.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01 15:09:04.562575+08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_10.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01 15:09:04-08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_11.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01 15:09:04.562575-08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_12.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01T15:09:04 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_13.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01T15:09:04+08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_14.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01T15:09:04.562575 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_15.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01T15:09:04.562575+08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_16.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01T15:09:04-08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_17.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -0,0 +1 @@
|
||||
2013-01-01T15:09:04.562575-08:00 localhost kernel: [ 1911.569682] type=1400 audit(1357024144.556:6368): apparmor="ALLOWED" operation="open" parent=5390 profile="/usr/lib/virtualbox/VBoxSVC//null-2d" name="/sys/class/power_supply/" pid=5457 comm=4143504920506F6C6C6572 requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
|
@@ -0,0 +1,16 @@
|
||||
START
|
||||
File: test_multi/syslog_datetime_18.in
|
||||
Event type: AA_RECORD_ALLOWED
|
||||
Audit ID: 1357024144.556:6368
|
||||
Operation: open
|
||||
Mask: r
|
||||
Denied Mask: r
|
||||
fsuid: 1000
|
||||
ouid: 0
|
||||
Profile: /usr/lib/virtualbox/VBoxSVC//null-2d
|
||||
Name: /sys/class/power_supply/
|
||||
Command: ACPI Poller
|
||||
Parent: 5390
|
||||
PID: 5457
|
||||
Epoch: 1357024144
|
||||
Audit subid: 6368
|
@@ -28,22 +28,99 @@ apparmor_parser - loads AppArmor profiles into the kernel
|
||||
|
||||
=head1 SYNOPSIS
|
||||
|
||||
B<apparmor_parser [-adrR] [--add] [--debug] [--replace] [--remove]
|
||||
[--preprocess] [--Include n] [--base n] [ --Complain ]>
|
||||
B<apparmor_parser [options] E<lt>commandE<gt> [profile]...>
|
||||
|
||||
B<apparmor_parser [options] E<lt>commandE<gt>>
|
||||
|
||||
B<apparmor_parser [-hv] [--help] [--version]>
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
||||
B<apparmor_parser> is used to import new apparmor.d(5) profiles
|
||||
into the Linux kernel. The profiles restrict the operations available
|
||||
to processes by executable name.
|
||||
B<apparmor_parser> is used as a general tool to compile, and manage AppArmor
|
||||
policy, including loading new apparmor.d(5) profiles into the Linux kernel.
|
||||
|
||||
AppArmor profiles restrict the operations available to processes.
|
||||
|
||||
The profiles are loaded into the Linux kernel by the B<apparmor_parser>
|
||||
program, which takes its input from standard input. The input supplied to
|
||||
B<apparmor_parser> should be in the format described in apparmor.d(5).
|
||||
program, which by default takes its input from standard input. The input
|
||||
supplied to B<apparmor_parser> should be in the format described in
|
||||
apparmor.d(5).
|
||||
|
||||
=head1 OPTIONS
|
||||
=head1 COMMANDS
|
||||
|
||||
The command set is broken into four subcategories.
|
||||
|
||||
=over 4
|
||||
|
||||
=item unprivileged commands
|
||||
|
||||
Commands that don't require any privilege and don't operate on profiles.
|
||||
|
||||
=item unprivileged profile commands
|
||||
|
||||
Commands that operate on a profile either specified on the command line or
|
||||
read from stdin if no profile was specified.
|
||||
|
||||
=item privileged commands
|
||||
|
||||
Commands that require the MAC_ADMIN capability within the affected AppArmor
|
||||
namespace to load policy into the kernel or filesystem write permissions to
|
||||
update the affected privileged files (cache etc).
|
||||
|
||||
=item privileged profile commands
|
||||
|
||||
Commands that require privilege and operate on profiles.
|
||||
|
||||
=back
|
||||
|
||||
=head1 Unprivileged commands
|
||||
|
||||
=over 4
|
||||
|
||||
=item -V, --version
|
||||
|
||||
Print the version number and exit.
|
||||
|
||||
=item -h, --help
|
||||
|
||||
Give a quick reference guide.
|
||||
|
||||
=back
|
||||
|
||||
=head1 Unprivileged profile commands
|
||||
|
||||
=over 4
|
||||
|
||||
=item -N, --names
|
||||
|
||||
Produce a list of policies from a given set of profiles (implies -K).
|
||||
|
||||
=item -p, --preprocess
|
||||
|
||||
Apply preprocessing to the input profile(s) by flattening includes into
|
||||
the output profile and dump to stdout.
|
||||
|
||||
=item -S, --stdout
|
||||
|
||||
Writes a binary (cached) profile to stdout (implies -K and -T).
|
||||
|
||||
=item -o file, --ofile file
|
||||
|
||||
Writes a binary (cached) profile to the specified file (implies -K and -T)
|
||||
|
||||
=back
|
||||
|
||||
=head1 Privileged commands
|
||||
|
||||
=over 4
|
||||
|
||||
=item --purge-cache
|
||||
|
||||
Unconditionally clear out cached profiles.
|
||||
|
||||
=back
|
||||
|
||||
=head1 Privileged profile commands
|
||||
|
||||
=over 4
|
||||
|
||||
@@ -67,25 +144,22 @@ Note that it still requires a complete AppArmor definition as described
|
||||
in apparmor.d(5) even though the contents of the definition aren't
|
||||
used.
|
||||
|
||||
=item -C, --Complain
|
||||
=back
|
||||
|
||||
For the profile to load in complain mode.
|
||||
=head1 OPTIONS
|
||||
|
||||
=over 4
|
||||
|
||||
=item -B, --binary
|
||||
|
||||
Load a binary (cached) profile, as produced with the -S option.
|
||||
Treat the profile files specified on the command line (or stdin if none
|
||||
specified) as binary cache files, produced with the -S or -o options,
|
||||
and load to the kernel as specified by -a, -r, and -R (implies -K
|
||||
and -T).
|
||||
|
||||
=item -N, --names
|
||||
=item -C, --Complain
|
||||
|
||||
Produce a list of policies from a given set of profiles (implies -K).
|
||||
|
||||
=item -S, --stdout
|
||||
|
||||
Writes a binary (cached) profile to stdout (implies -K and -T).
|
||||
|
||||
=item -o file, --ofile file
|
||||
|
||||
Writes a binary (cached) profile to the specified file (implies -K and -T)
|
||||
Force the profile to load in complain mode.
|
||||
|
||||
=item -b n, --base n
|
||||
|
||||
@@ -138,6 +212,11 @@ by default. In cases where abstractions have been changed, and the parser
|
||||
is running with "--replace", it may make sense to also use
|
||||
"--skip-read-cache" with the "--write-cache" option.
|
||||
|
||||
=item --skip-bad-cache
|
||||
|
||||
Skip updating the cache if it contains cached profiles in a bad or
|
||||
inconsistent state
|
||||
|
||||
=item -L, --cache-loc
|
||||
|
||||
Set the location of the cache directory. If not specified the cache location
|
||||
@@ -149,6 +228,9 @@ Perform all actions except the actual loading of a profile into the kernel.
|
||||
This is useful for testing profile generation, caching, etc, without making
|
||||
changes to the running kernel profiles.
|
||||
|
||||
This also removes the need for privilege to execute the commands that
|
||||
manage policy in the kernel
|
||||
|
||||
=item -q, --quiet
|
||||
|
||||
Do not report on the profiles as they are loaded, and not show warnings.
|
||||
@@ -157,15 +239,6 @@ Do not report on the profiles as they are loaded, and not show warnings.
|
||||
|
||||
Report on the profiles as they are loaded, and show warnings.
|
||||
|
||||
=item -V, --version
|
||||
|
||||
Print the version number and exit.
|
||||
|
||||
=item -p, --preprocess
|
||||
|
||||
Dump the input profile to stdout out applying preprocessing flattening
|
||||
includes into the output profile.
|
||||
|
||||
=item -d, --debug
|
||||
|
||||
Given once, only checks the profiles to ensure syntactic correctness.
|
||||
@@ -198,10 +271,6 @@ of time to complete.
|
||||
Use --help=optimize to see a full list of which optimization flags are
|
||||
supported.
|
||||
|
||||
=item -h, --help
|
||||
|
||||
Give a quick reference guide.
|
||||
|
||||
=back
|
||||
|
||||
=head1 CONFIG FILE
|
||||
|
@@ -57,6 +57,8 @@ extern "C" void aare_delete_ruleset(aare_ruleset_t *rules)
|
||||
if (rules->root)
|
||||
rules->root->release();
|
||||
free(rules);
|
||||
|
||||
aare_reset_matchflags();
|
||||
}
|
||||
}
|
||||
|
||||
|
@@ -24,6 +24,7 @@
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdarg.h>
|
||||
#include <stddef.h>
|
||||
#include <getopt.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
@@ -71,6 +72,8 @@ int show_cache = 0;
|
||||
int skip_cache = 0;
|
||||
int skip_read_cache = 0;
|
||||
int write_cache = 0;
|
||||
int cond_clear_cache = 1; /* only applies if write is set */
|
||||
int force_clear_cache = 0; /* force clearing regargless of state */
|
||||
int preprocess_only = 0;
|
||||
int skip_mode_force = 0;
|
||||
struct timespec mru_tstamp;
|
||||
@@ -109,6 +112,8 @@ struct option long_options[] = {
|
||||
{"skip-read-cache", 0, 0, 'T'},
|
||||
{"write-cache", 0, 0, 'W'},
|
||||
{"show-cache", 0, 0, 'k'},
|
||||
{"skip-bad-cache", 0, 0, 129}, /* no short option */
|
||||
{"purge-cache", 0, 0, 130}, /* no short option */
|
||||
{"cache-loc", 1, 0, 'L'},
|
||||
{"debug", 0, 0, 'd'},
|
||||
{"dump", 1, 0, 'D'},
|
||||
@@ -151,6 +156,8 @@ static void display_usage(char *command)
|
||||
"-K, --skip-cache Do not attempt to load or save cached profiles\n"
|
||||
"-T, --skip-read-cache Do not attempt to load cached profiles\n"
|
||||
"-W, --write-cache Save cached profile (force with -T)\n"
|
||||
" --skip-bad-cache Don't clear cache if out of sync\n"
|
||||
" --purge-cache Clear cache regardless of its state\n"
|
||||
"-L, --cache-loc n Set the location of the profile cache\n"
|
||||
"-q, --quiet Don't emit warnings\n"
|
||||
"-v, --verbose Show profile names as they load\n"
|
||||
@@ -449,8 +456,10 @@ static int process_arg(int c, char *optarg)
|
||||
skip_cache = 1;
|
||||
break;
|
||||
case 'N':
|
||||
count++;
|
||||
names_only = 1;
|
||||
skip_cache = 1;
|
||||
kernel_load = 0;
|
||||
break;
|
||||
case 'S':
|
||||
count++;
|
||||
@@ -527,6 +536,12 @@ static int process_arg(int c, char *optarg)
|
||||
case 'T':
|
||||
skip_read_cache = 1;
|
||||
break;
|
||||
case 129:
|
||||
cond_clear_cache = 0;
|
||||
break;
|
||||
case 130:
|
||||
force_clear_cache = 1;
|
||||
break;
|
||||
case 'L':
|
||||
cacheloc = strdup(optarg);
|
||||
break;
|
||||
@@ -1165,6 +1180,120 @@ out:
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int dir_for_each(const char *dname,
|
||||
int (* callback)(const char *, struct dirent *,
|
||||
struct stat *)) {
|
||||
struct dirent *dirent, *ent;
|
||||
char *path = NULL;
|
||||
DIR *dir = NULL;
|
||||
int error;
|
||||
|
||||
dirent = malloc(offsetof(struct dirent, d_name) +
|
||||
pathconf(dname, _PC_NAME_MAX) + 1);
|
||||
if (!dirent) {
|
||||
PDEBUG(_("could not alloc dirent"));
|
||||
return -1;
|
||||
}
|
||||
|
||||
PDEBUG("Opened cache directory \"%s\"\n", dname);
|
||||
if (!(dir = opendir(dname))) {
|
||||
free(dirent);
|
||||
PDEBUG(_("opendir failed '%s'"), dname);
|
||||
return -1;
|
||||
}
|
||||
|
||||
for (error = readdir_r(dir, dirent, &ent);
|
||||
error == 0 && ent != NULL;
|
||||
error = readdir_r(dir, dirent, &ent)) {
|
||||
struct stat my_stat;
|
||||
|
||||
if (strcmp(dirent->d_name, ".") == 0 ||
|
||||
strcmp(dirent->d_name, "..") == 0)
|
||||
continue;
|
||||
|
||||
if (asprintf(&path, "%s/%s", dname, dirent->d_name) < 0)
|
||||
{
|
||||
PDEBUG(_("Memory allocation error."));
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (stat(path, &my_stat)) {
|
||||
PDEBUG(_("stat failed for '%s'"), path);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (callback(path, dirent, &my_stat)) {
|
||||
PDEBUG(_("dir_for_each callback failed\n"));
|
||||
goto fail;
|
||||
}
|
||||
|
||||
free(path);
|
||||
path = NULL;
|
||||
}
|
||||
|
||||
free(dirent);
|
||||
closedir(dir);
|
||||
return error;
|
||||
|
||||
fail:
|
||||
error = errno;
|
||||
free(dirent);
|
||||
free(path);
|
||||
closedir(dir);
|
||||
errno = error;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int clear_cache_cb(const char *path, __unused struct dirent *dirent,
|
||||
struct stat *ent_stat)
|
||||
{
|
||||
/* remove regular files */
|
||||
if (S_ISREG(ent_stat->st_mode))
|
||||
return unlink(path);
|
||||
|
||||
/* do nothing with other file types */
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int clear_cache_files(const char *path)
|
||||
{
|
||||
char *cache;
|
||||
int error;
|
||||
|
||||
if (asprintf(&cache, "%s/cache", path) == -1) {
|
||||
perror("asprintf");
|
||||
exit(1);
|
||||
}
|
||||
|
||||
error = dir_for_each(cache, clear_cache_cb);
|
||||
|
||||
free(cache);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
static int create_cache(const char *path, const char *features)
|
||||
{
|
||||
FILE * f = NULL;
|
||||
|
||||
f = fopen(path, "w");
|
||||
if (f) {
|
||||
if (fwrite(features, strlen(features), 1, f) != 1 )
|
||||
goto fail;
|
||||
|
||||
fclose(f);
|
||||
}
|
||||
|
||||
return 0;
|
||||
fail:
|
||||
if (show_cache)
|
||||
PERROR("Cache write disabled: cannot create %s\n", path);
|
||||
write_cache = 0;
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void setup_flags(void)
|
||||
{
|
||||
char *cache_features_path = NULL;
|
||||
@@ -1182,7 +1311,12 @@ static void setup_flags(void)
|
||||
write_cache = 0;
|
||||
skip_read_cache = 1;
|
||||
return;
|
||||
}
|
||||
} else if (strstr(flags_string, "network"))
|
||||
kernel_supports_network = 1;
|
||||
else
|
||||
kernel_supports_network = 0;
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Deal with cache directory versioning:
|
||||
@@ -1198,30 +1332,23 @@ static void setup_flags(void)
|
||||
get_flags_string(&cache_flags, cache_features_path);
|
||||
if (cache_flags) {
|
||||
if (strcmp(flags_string, cache_flags) != 0) {
|
||||
if (show_cache) PERROR("Cache read/write disabled: %s does not match %s\n", FLAGS_FILE, cache_features_path);
|
||||
write_cache = 0;
|
||||
skip_read_cache = 1;
|
||||
if (write_cache && cond_clear_cache) {
|
||||
if (clear_cache_files(basedir) ||
|
||||
create_cache(cache_features_path,
|
||||
flags_string)) {
|
||||
skip_read_cache = 1;
|
||||
}
|
||||
} else {
|
||||
if (show_cache)
|
||||
PERROR("Cache read/write disabled: %s does not match %s\n", FLAGS_FILE, cache_features_path);
|
||||
write_cache = 0;
|
||||
skip_read_cache = 1;
|
||||
}
|
||||
}
|
||||
free(cache_flags);
|
||||
cache_flags = NULL;
|
||||
}
|
||||
else if (write_cache) {
|
||||
FILE * f = NULL;
|
||||
int failure = 0;
|
||||
|
||||
f = fopen(cache_features_path, "w");
|
||||
if (!f) failure = 1;
|
||||
else {
|
||||
if (fwrite(flags_string, strlen(flags_string), 1, f) != 1 ) {
|
||||
failure = 1;
|
||||
}
|
||||
if (fclose(f) != 0) failure = 1;
|
||||
}
|
||||
|
||||
if (failure) {
|
||||
if (show_cache) PERROR("Cache write disabled: cannot write to %s\n", cache_features_path);
|
||||
write_cache = 0;
|
||||
}
|
||||
} else if (write_cache) {
|
||||
create_cache(cache_features_path, flags_string);
|
||||
}
|
||||
|
||||
free(cache_features_path);
|
||||
@@ -1251,6 +1378,11 @@ int main(int argc, char *argv[])
|
||||
return retval;
|
||||
}
|
||||
|
||||
if (force_clear_cache) {
|
||||
clear_cache_files(basedir);
|
||||
exit(0);
|
||||
}
|
||||
|
||||
/* Check to make sure there is an interface to load policy */
|
||||
if (!(UNPRIVILEGED_OPS) && (subdomainbase == NULL) &&
|
||||
(retval = find_subdomainfs_mountpoint())) {
|
||||
|
@@ -184,7 +184,13 @@ struct network_tuple {
|
||||
|
||||
/* used by af_name.h to auto generate table entries for "name", AF_NAME
|
||||
* pair */
|
||||
#define AA_GEN_NET_ENT(name, AF) {name, AF, "stream", SOCK_STREAM, "", 0xffffff}, {name, AF, "dgram", SOCK_DGRAM, "", 0xffffff}, {name, AF, "seqpacket", SOCK_SEQPACKET, "", 0xffffff}, {name, AF, "rdm", SOCK_RDM, "", 0xffffff}, {name, AF, "raw", SOCK_RAW, "", 0xffffff}, {name, AF, "packet", SOCK_PACKET, "", 0xffffff},
|
||||
#define AA_GEN_NET_ENT(name, AF) \
|
||||
{name, AF, "stream", SOCK_STREAM, "", 0xffffff}, \
|
||||
{name, AF, "dgram", SOCK_DGRAM, "", 0xffffff}, \
|
||||
{name, AF, "seqpacket", SOCK_SEQPACKET, "", 0xffffff}, \
|
||||
{name, AF, "rdm", SOCK_RDM, "", 0xffffff}, \
|
||||
{name, AF, "raw", SOCK_RAW, "", 0xffffff}, \
|
||||
{name, AF, "packet", SOCK_PACKET, "", 0xffffff},
|
||||
/*FIXME: missing {name, AF, "dccp", SOCK_DCCP, "", 0xfffffff}, */
|
||||
|
||||
static struct network_tuple network_mappings[] = {
|
||||
@@ -936,6 +942,99 @@ void debug_capabilities(struct codomain *cod)
|
||||
__debug_capabilities(cod->quiet_caps, "Quiet Caps");
|
||||
}
|
||||
|
||||
const char *sock_types[] = {
|
||||
[0] = "none",
|
||||
[SOCK_STREAM] = "stream",
|
||||
[SOCK_DGRAM] = "dgram",
|
||||
[SOCK_RAW] = "raw",
|
||||
[SOCK_RDM] = "rdm",
|
||||
[SOCK_SEQPACKET] = "seqpacket",
|
||||
[SOCK_PACKET] = "packet",
|
||||
/*
|
||||
* See comment above
|
||||
[SOCK_DCCP] = "dccp",
|
||||
*/
|
||||
};
|
||||
#define ALL_TYPES 0x43e
|
||||
|
||||
#undef AA_GEN_NET_ENT
|
||||
#define AA_GEN_NET_ENT(name, AF) [AF] = name,
|
||||
|
||||
static const char *network_families[] = {
|
||||
#include "af_names.h"
|
||||
};
|
||||
|
||||
void __debug_network(unsigned int *array, const char *name)
|
||||
{
|
||||
unsigned int count = sizeof(sock_types)/sizeof(sock_types[0]);
|
||||
unsigned int mask = ~((1 << count) -1);
|
||||
unsigned int i, j;
|
||||
int none = 1;
|
||||
size_t af_max = get_af_max();
|
||||
|
||||
for (i = AF_UNSPEC; i < af_max; i++)
|
||||
if (array[i]) {
|
||||
none = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
if (none)
|
||||
return;
|
||||
|
||||
printf("%s: ", name);
|
||||
|
||||
/* This can only be set by an unqualified network rule */
|
||||
if (array[AF_UNSPEC]) {
|
||||
printf("<all>\n");
|
||||
return;
|
||||
}
|
||||
|
||||
for (i = 0; i < af_max; i++) {
|
||||
if (array[i]) {
|
||||
const char *fam = network_families[i];
|
||||
if (fam)
|
||||
printf("%s ", fam);
|
||||
else
|
||||
printf("#%u ", i);
|
||||
|
||||
/* All types/protocols */
|
||||
if (array[i] == 0xffffffff || array[i] == ALL_TYPES)
|
||||
continue;
|
||||
|
||||
printf("{ ");
|
||||
|
||||
for (j = 0; j < count; j++) {
|
||||
const char *type;
|
||||
if (array[i] & (1 << j)) {
|
||||
type = sock_types[j];
|
||||
if (type)
|
||||
printf("%s ", type);
|
||||
else
|
||||
printf("#%u ", j);
|
||||
}
|
||||
}
|
||||
if (array[i] & mask)
|
||||
printf("#%x ", array[i] & mask);
|
||||
|
||||
printf("} ");
|
||||
}
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
void debug_network(struct codomain *cod)
|
||||
{
|
||||
if (cod->network_allowed)
|
||||
__debug_network(cod->network_allowed, "Network");
|
||||
if (cod->audit_network)
|
||||
__debug_network(cod->audit_network, "Audit Net");
|
||||
if (cod->deny_network)
|
||||
__debug_network(cod->deny_network, "Deny Net");
|
||||
if (cod->quiet_network)
|
||||
__debug_network(cod->quiet_network, "Quiet Net");
|
||||
|
||||
}
|
||||
|
||||
void debug_cod_list(struct codomain *cod)
|
||||
{
|
||||
if (cod->namespace)
|
||||
@@ -953,6 +1052,8 @@ void debug_cod_list(struct codomain *cod)
|
||||
|
||||
debug_capabilities(cod);
|
||||
|
||||
debug_network(cod);
|
||||
|
||||
if (cod->entries)
|
||||
debug_cod_entries(cod->entries);
|
||||
|
||||
|
@@ -22,15 +22,17 @@ cp caching.profile $basedir/$profile
|
||||
|
||||
# Detect and slow down cache test when filesystem can't represent nanosecond delays.
|
||||
timeout=0.1
|
||||
touch $basedir/test1
|
||||
sleep $timeout
|
||||
touch $basedir/test2
|
||||
TIMES=$(stat $basedir/test1 $basedir/test2 -c %z | cut -d" " -f2 | cut -d. -f2 | sort -u | wc -l)
|
||||
if [ $TIMES -ne 2 ]; then
|
||||
_count=10
|
||||
for ((i = 0; i < ${_count} ; i++)) ; do
|
||||
touch $basedir/test${i}
|
||||
sleep $timeout
|
||||
done
|
||||
TIMES=$(stat $basedir/test* -c %z | cut -d" " -f2 | cut -d: -f3 | sort -u | wc -l)
|
||||
if [ $TIMES -ne ${_count} ]; then
|
||||
echo "WARNING: $basedir lacks nanosecond timestamp resolution, falling back to slower test"
|
||||
timeout=1
|
||||
fi
|
||||
rm -f $basedir/test1 $basedir/test2
|
||||
rm -f $basedir/test*
|
||||
|
||||
echo -n "Profiles are not cached by default: "
|
||||
../apparmor_parser $ARGS -q -r $basedir/$profile
|
||||
@@ -93,12 +95,41 @@ echo -n "monkey" > $basedir/cache/.features
|
||||
../apparmor_parser $ARGS -v -r $basedir/$profile | grep -q 'Replacement succeeded for' || { echo "FAIL"; exit 1; }
|
||||
echo "ok"
|
||||
|
||||
echo -n "Cache writing is skipped when features do not match cache: "
|
||||
echo -n "Cache writing is skipped when features do not match and not cleared: "
|
||||
rm $basedir/cache/$profile
|
||||
../apparmor_parser $ARGS -v --write-cache -r $basedir/$profile | grep -q 'Replacement succeeded for' || { echo "FAIL"; exit 1; }
|
||||
../apparmor_parser $ARGS -v --write-cache --skip-bad-cache -r $basedir/$profile | grep -q 'Replacement succeeded for' || { echo "FAIL"; exit 1; }
|
||||
[ -f $basedir/cache/$profile ] && echo "FAIL ($basedir/cache/$profile exists)" && exit 1
|
||||
echo "ok"
|
||||
|
||||
rm -f $basedir/cache/.features || true
|
||||
rm -f $basedir/cache/$profile || true
|
||||
echo -n "monkey" > $basedir/cache/.features
|
||||
echo -n "monkey" > $basedir/cache/$profile
|
||||
echo -n "monkey" > $basedir/cache/monkey
|
||||
../apparmor_parser $ARGS -v --write-cache -r $basedir/$profile | grep -q 'Replacement succeeded for' || { echo "Cache clear setup FAIL"; exit 1; }
|
||||
echo -n "Cache clear updates features: "
|
||||
echo -n "monkey" | diff -q $basedir/cache/.features - | grep -q 'differ' || { echo "FAIL"; exit 1; }
|
||||
echo "ok"
|
||||
echo -n "Cache clear writes updated profile: "
|
||||
echo -n "monkey" | diff -q $basedir/cache/$profile - | grep -q 'differ' || { echo "FAIL"; exit 1; }
|
||||
echo "ok"
|
||||
echo -n "Cache clear cleans out all files: "
|
||||
[ -f $basedir/cache/monkey ] && { echo "FAIL"; exit 1; }
|
||||
echo "ok"
|
||||
|
||||
rm -f $basedir/cache/monkey
|
||||
rm -f $basedir/cache/.features || true
|
||||
rm -f $basedir/cache/$profile || true
|
||||
echo -n "monkey" > $basedir/cache/.features
|
||||
echo -n "monkey" > $basedir/cache/$profile
|
||||
echo -n "monkey" > $basedir/cache/monkey
|
||||
echo -n "Cache purge remove profiles unconditionally: "
|
||||
../apparmor_parser $ARGS -v --purge-cache -r $basedir/$profile || { echo "Cache purge setup FAIL"; exit 1; }
|
||||
[ -f $basedir/cache/.features ] && { echo "FAIL"; exit 1; }
|
||||
[ -f $basedir/cache/$profile ] && { echo "FAIL"; exit 1; }
|
||||
[ -f $basedir/cache/monkey ] && { echo "FAIL"; exit 1; }
|
||||
echo "ok"
|
||||
|
||||
echo -n "Profiles are cached when requested (again): "
|
||||
rm -f $basedir/cache/.features || true
|
||||
rm -f $basedir/cache/$profile || true
|
||||
|
@@ -68,6 +68,16 @@ sub test_profile {
|
||||
my $result = 0;
|
||||
my $child;
|
||||
|
||||
$child = open(PARSER, "|-");
|
||||
if ($child == 0) {
|
||||
# child
|
||||
open(STDOUT, ">/dev/null") or die "Failed to redirect STDOUT";
|
||||
open(STDERR, ">/dev/null") or die "Failed to redirect STDERR";
|
||||
exec("$config{'parser'}", "-S", "-I", "$config{'includedir'}") or die "Bail out! couldn't open parser";
|
||||
# noreturn
|
||||
}
|
||||
|
||||
# parent
|
||||
eval {
|
||||
local $SIG{ALRM} = sub {
|
||||
$result = 1;
|
||||
@@ -77,19 +87,9 @@ sub test_profile {
|
||||
|
||||
alarm $config{'timeout'};
|
||||
|
||||
$child = open(PARSER, "|-");
|
||||
if ($child == 0) {
|
||||
# child
|
||||
open(STDOUT, ">/dev/null") or die "Failed to redirect STDOUT";
|
||||
open(STDERR, ">/dev/null") or die "Failed to redirect STDERR";
|
||||
exec("$config{'parser'}", "-S", "-I", "$config{'includedir'}") or die "Bail out! couldn't open parser";
|
||||
# noreturn
|
||||
}
|
||||
|
||||
# parent
|
||||
open(PROFILE, $profile) or die "Bail out! couldn't open profile $profile";
|
||||
while (<PROFILE>) {
|
||||
if (/^#=DESCRIPTION\s*(.*)/) {
|
||||
if (/^#=DESCRIPTION\s*(.*)/i) {
|
||||
$description = $1;
|
||||
} elsif (/^#=EXRESULT\s*(\w+)/) {
|
||||
if ($1 eq "PASS") {
|
||||
|
39
parser/tst/simple_tests/xtrans/x-conflict2.sd
Normal file
39
parser/tst/simple_tests/xtrans/x-conflict2.sd
Normal file
@@ -0,0 +1,39 @@
|
||||
#
|
||||
#=DESCRIPTION test for reused flag state
|
||||
#=EXRESULT PASS
|
||||
#
|
||||
|
||||
/usr/bin/parent-profile {
|
||||
|
||||
/usr/bin/profile1 Cx -> profile1,
|
||||
/usr/bin/profile2 Cx -> profile2,
|
||||
/usr/bin/profile3 Cx -> profile3,
|
||||
/usr/bin/profile4 Cx -> profile4,
|
||||
/usr/bin/profile5 Cx -> profile5,
|
||||
/usr/bin/profile6 Cx -> profile6,
|
||||
|
||||
profile profile1 {
|
||||
|
||||
}
|
||||
|
||||
profile profile2 {
|
||||
|
||||
}
|
||||
|
||||
profile profile3 {
|
||||
|
||||
}
|
||||
|
||||
profile profile4 {
|
||||
/usr/bin/apt-get Ux,
|
||||
/usr/bin/dpkg Ux,
|
||||
}
|
||||
|
||||
profile profile5 {
|
||||
|
||||
}
|
||||
|
||||
profile profile6 {
|
||||
|
||||
}
|
||||
}
|
@@ -39,6 +39,9 @@
|
||||
/etc/drirc r,
|
||||
owner @{HOME}/.drirc r,
|
||||
|
||||
# Xcompose
|
||||
owner @{HOME}/.XCompose r,
|
||||
|
||||
# mouse themes
|
||||
/etc/X11/cursors/ r,
|
||||
/etc/X11/cursors/** r,
|
||||
|
@@ -40,5 +40,5 @@
|
||||
|
||||
# run out of /etc/bash.bashrc
|
||||
/etc/DIR_COLORS r,
|
||||
/bin/ls mix,
|
||||
/{usr/,}bin/ls mix,
|
||||
/usr/bin/dircolors mix,
|
||||
|
@@ -37,8 +37,8 @@
|
||||
@{HOME}/.fonts/ r,
|
||||
@{HOME}/.fonts/** r,
|
||||
@{HOME}/.fonts.cache-2 mr,
|
||||
@{HOME}/.fontconfig/ r,
|
||||
@{HOME}/.fontconfig/** mrl,
|
||||
@{HOME}/.{,cache/}fontconfig/ r,
|
||||
@{HOME}/.{,cache/}fontconfig/** mrl,
|
||||
@{HOME}/.fonts.conf.d/ r,
|
||||
@{HOME}/.fonts.conf.d/** r,
|
||||
|
||||
|
@@ -83,3 +83,6 @@
|
||||
# mime-types
|
||||
/etc/gnome/defaults.list r,
|
||||
/usr/share/gnome/applications/mimeinfo.cache r,
|
||||
|
||||
# poppler CMap tables
|
||||
/usr/share/poppler/cMap/** r,
|
||||
|
@@ -4,9 +4,12 @@
|
||||
# configuration queries
|
||||
capability ipc_lock,
|
||||
|
||||
# libvdpau config file for nvidia workarounds
|
||||
/etc/vdpau_wrapper.cfg r,
|
||||
|
||||
# device files
|
||||
/dev/nvidia0 rw,
|
||||
/dev/nvidiactl rw,
|
||||
|
||||
/proc/interrupts r,
|
||||
/proc/sys/vm/max_map_count r,
|
||||
@{PROC}/interrupts r,
|
||||
@{PROC}/sys/vm/max_map_count r,
|
||||
|
@@ -4,9 +4,11 @@
|
||||
owner @{HOME}/.java/deployment/deployment.properties k,
|
||||
/etc/java-*/ r,
|
||||
/etc/java-*/** r,
|
||||
/usr/lib/jvm/java-6-openjdk*/jre/lib/*/IcedTeaPlugin.so mr,
|
||||
/usr/lib/jvm/java-{6,7}-openjdk*/jre/lib/*/IcedTeaPlugin.so mr,
|
||||
/usr/lib/jvm/java-6-openjdk/jre/bin/java cx -> browser_openjdk,
|
||||
/usr/lib/jvm/java-6-openjdk-{amd64,armel,armhf,i386,powerpc}/jre/bin/java cx -> browser_openjdk,
|
||||
/usr/lib/jvm/java-7-openjdk/jre/bin/java cx -> browser_openjdk,
|
||||
/usr/lib/jvm/java-7-openjdk-{amd64,armel,armhf,i386,powerpc}/jre/bin/java cx -> browser_openjdk,
|
||||
/usr/lib/jvm/java-*-sun-1.*/jre/bin/java{,_vm} cx -> browser_java,
|
||||
/usr/lib/jvm/java-*-sun-1.*/jre/lib/*/libnp*.so cx -> browser_java,
|
||||
/usr/lib/j2*-ibm/jre/bin/java cx -> browser_java,
|
||||
@@ -44,8 +46,8 @@
|
||||
/var/lib/dbus/machine-id r,
|
||||
|
||||
/usr/bin/env ix,
|
||||
/usr/lib/jvm/java-6-openjdk*/jre/bin/java ix,
|
||||
/usr/lib/jvm/java-6-openjdk*/jre/lib/i386/client/classes.jsa m,
|
||||
/usr/lib/jvm/java-{6,7}-openjdk*/jre/bin/java ix,
|
||||
/usr/lib/jvm/java-{6,7}-openjdk*/jre/lib/i386/client/classes.jsa m,
|
||||
|
||||
# Why would java need this?
|
||||
deny /usr/bin/gconftool-2 x,
|
||||
|
@@ -6,7 +6,7 @@
|
||||
#include <abstractions/X>
|
||||
|
||||
# Pulseaudio
|
||||
/usr/bin/pulseaudio ixr,
|
||||
/usr/bin/pulseaudio Pixr,
|
||||
|
||||
# Image viewers
|
||||
/usr/bin/eog Cxr -> sanitized_helper,
|
||||
@@ -50,10 +50,8 @@
|
||||
/opt/google/talkplugin/GoogleTalkPlugin ixr,
|
||||
owner @{HOME}/.config/google-googletalkplugin/** rw,
|
||||
|
||||
# If we allow the above, nvidia based systems will also need these
|
||||
/dev/nvidactl rw,
|
||||
/dev/nvidia0 rw,
|
||||
@{PROC}/interrupts r,
|
||||
# If we allow the above, nvidia based systems will also need this
|
||||
#include <abstractions/nvidia>
|
||||
|
||||
# Virus scanners
|
||||
/usr/bin/clamscan Cx -> sanitized_helper,
|
||||
|
@@ -29,3 +29,6 @@
|
||||
|
||||
# Exo-aware applications
|
||||
/usr/bin/exo-open ixr,
|
||||
/usr/lib/@{multiarch}/xfce4/exo-1/exo-helper-1 ixr,
|
||||
/etc/xdg/xdg-xubuntu/xfce4/helpers.rc r,
|
||||
/etc/xdg/xfce4/helpers.rc r,
|
||||
|
@@ -43,10 +43,11 @@ profile sanitized_helper {
|
||||
/bin/* Pixr,
|
||||
/sbin/* Pixr,
|
||||
/usr/bin/* Pixr,
|
||||
/usr/local/bin/* Pixr,
|
||||
/usr/sbin/* Pixr,
|
||||
|
||||
# Allow exec of libexec applications in /usr/lib*
|
||||
/usr/lib*/{,**/}* Pixr,
|
||||
# Allow exec of libexec applications in /usr/lib* and /usr/local/lib*
|
||||
/usr/{,local/}lib*/{,**/}* Pixr,
|
||||
|
||||
# Allow exec of software-center scripts. We may need to allow wider
|
||||
# permissions for /usr/share, but for now just do this. (LP: #972367)
|
||||
@@ -65,7 +66,7 @@ profile sanitized_helper {
|
||||
# Full access
|
||||
/ r,
|
||||
/** rwkl,
|
||||
/{,usr/}lib{,32,64}/{,**/}*.so{,.*} m,
|
||||
/{,usr/,usr/local/}lib{,32,64}/{,**/}*.so{,.*} m,
|
||||
|
||||
# Dangerous files
|
||||
audit deny owner /**/* m, # compiled libraries
|
||||
|
@@ -10,7 +10,7 @@
|
||||
# ------------------------------------------------------------------
|
||||
|
||||
#include <tunables/global>
|
||||
/bin/ping {
|
||||
/{usr/,}bin/ping {
|
||||
#include <abstractions/base>
|
||||
#include <abstractions/consoles>
|
||||
#include <abstractions/nameservice>
|
||||
|
@@ -53,6 +53,7 @@
|
||||
|
||||
# NetworkManager integration
|
||||
/{,var/}run/nm-dns-dnsmasq.conf r,
|
||||
/{,var/}run/sendsigs.omit.d/*dnsmasq.pid w,
|
||||
|
||||
# Site-specific additions and overrides. See local/README for details.
|
||||
#include <local/usr.sbin.dnsmasq>
|
||||
|
@@ -39,7 +39,7 @@ working as you expect.
|
||||
Feedback on these unsupported profiles is welcomed; any
|
||||
contributions for this directory should be clearly licensed
|
||||
-- we recommend using the GPL. Please mail suggestions or
|
||||
modifications to the apparmor-general@forge.novell.com mail list:
|
||||
http://forge.novell.com/mailman/listinfo/apparmor-general
|
||||
modifications to the apparmor@lists.ubuntu.com mail list:
|
||||
https://lists.ubuntu.com/mailman/listinfo/apparmor
|
||||
|
||||
Thanks
|
||||
|
@@ -1,40 +1,80 @@
|
||||
# Last Modified: Mon Oct 26 13:29:13 2009
|
||||
# REPOSITORY: http://apparmor.test.opensuse.org/backend/api draglor 53
|
||||
# Additional profiling based on work by Андрей Калинин, LP: #226624
|
||||
# Additional profiling based on work by:
|
||||
# - Андрей Калинин, LP: #226624
|
||||
# - Jamie Strandboge and Ivan Frederiks, LP: #933440
|
||||
#include <tunables/global>
|
||||
/usr/bin/skype flags=(complain) {
|
||||
#include <abstractions/audio>
|
||||
#include <abstractions/base>
|
||||
#include <abstractions/dbus-session>
|
||||
#include <abstractions/fonts>
|
||||
#include <abstractions/freedesktop.org>
|
||||
#include <abstractions/gnome>
|
||||
#include <abstractions/ibus>
|
||||
#include <abstractions/kde>
|
||||
#include <abstractions/nameservice>
|
||||
#include <abstractions/nvidia>
|
||||
#include <abstractions/ssl_certs>
|
||||
#include <abstractions/user-tmp>
|
||||
#include <abstractions/X>
|
||||
|
||||
# are these needed?
|
||||
/proc/*/cmdline r,
|
||||
@{PROC}/sys/kernel/{ostype,osrelease} r,
|
||||
@{PROC}/[0-9]*/net/arp r,
|
||||
owner @{PROC}/[0-9]*/auxv r,
|
||||
owner @{PROC}/[0-9]*/cmdline r,
|
||||
owner @{PROC}/[0-9]*/fd/ r,
|
||||
owner @{PROC}/[0-9]*/task/ r,
|
||||
owner @{PROC}/[0-9]*/task/[0-9]*/stat r,
|
||||
|
||||
/sys/devices/**/power_supply/**/online r,
|
||||
/sys/devices/system/cpu/ r,
|
||||
/sys/devices/system/cpu/cpu[0-9]*/cpufreq/scaling_{cur_freq,max_freq} r,
|
||||
|
||||
/dev/ r,
|
||||
owner /{dev,run}/shm/pulse-shm* m,
|
||||
/dev/snd/* m,
|
||||
/dev/video* mrw,
|
||||
|
||||
/var/cache/libx11/compose/* r,
|
||||
|
||||
# should this be in a separate KDE abstraction?
|
||||
@{HOME}/.kde/share/config/kioslaverc r,
|
||||
owner @{HOME}/.kde{,4}/share/config/kioslaverc r,
|
||||
|
||||
/usr/bin/skype mr,
|
||||
/etc/xdg/sni-qt.conf rk,
|
||||
/etc/xdg/Trolltech.conf rk,
|
||||
/usr/share/skype/** kr,
|
||||
/usr/share/skype/**/*.qm mr,
|
||||
/usr/share/skype/sounds/*.wav kr,
|
||||
/usr/lib/@{multiarch}/pango/** mr,
|
||||
|
||||
@{HOME}/.Skype/ rw,
|
||||
@{HOME}/.Skype/** krw,
|
||||
@{HOME}/.config/* kr,
|
||||
# For opening links in the browser (still requires explicit access to execute
|
||||
# the browser)
|
||||
/usr/bin/xdg-open ixr,
|
||||
|
||||
@{HOME}/.mozilla/ r,
|
||||
@{HOME}/.mozilla/*/ r,
|
||||
@{HOME}/.mozilla/*/*/ r,
|
||||
@{HOME}/.mozilla/*/*/bookmarkbackups/ r,
|
||||
@{HOME}/.mozilla/*/*/chrome/ r,
|
||||
@{HOME}/.mozilla/*/*/extensions/ r,
|
||||
@{HOME}/.mozilla/*/*/prefs.js r,
|
||||
owner @{HOME}/.Skype/ rw,
|
||||
owner @{HOME}/.Skype/** krw,
|
||||
owner @{HOME}/.config/ r,
|
||||
owner @{HOME}/.config/*/ r,
|
||||
owner @{HOME}/.config/Skype/Skype.conf rw,
|
||||
owner @{HOME}/.config/Trolltech.conf kr,
|
||||
|
||||
# Skype traverses the .mozilla directory and needs access to prefs.js
|
||||
owner @{HOME}/.mozilla/ r,
|
||||
owner @{HOME}/.mozilla/**/ r,
|
||||
owner @{HOME}/.mozilla/*/*/prefs.js r,
|
||||
|
||||
# Skype also looks around in these directories
|
||||
/{,usr/,usr/local/}lib/ r,
|
||||
|
||||
# Recent skype builds have an executable stack, so it tries to mmap certain
|
||||
# files. Let's deny them for now.
|
||||
deny /etc/passwd m,
|
||||
deny /etc/group m,
|
||||
deny /usr/share/fonts/** m,
|
||||
|
||||
# Silence a few non-needed writes
|
||||
deny /var/cache/fontconfig/ w,
|
||||
deny owner @{HOME}/.fontconfig/ w,
|
||||
deny owner @{HOME}/.fontconfig/*.cache-*.TMP* w,
|
||||
}
|
||||
|
||||
|
@@ -23,6 +23,8 @@
|
||||
#include <sched.h>
|
||||
#include <linux/unistd.h>
|
||||
|
||||
#define STACK_SIZE 0x8000
|
||||
|
||||
struct option long_options[] =
|
||||
{
|
||||
{"newns", 0, 0, 'n'}, /* create a new namespace */
|
||||
@@ -59,7 +61,7 @@ int main(int argc, char *argv[])
|
||||
int waitstatus;
|
||||
int c;
|
||||
char buf[BUFSIZ];
|
||||
int stack_size = PAGE_SIZE << 4;
|
||||
int stack_size = STACK_SIZE;
|
||||
void *child_stack = malloc(stack_size);
|
||||
int clone_flags = SIGCHLD;
|
||||
|
||||
|
@@ -12,7 +12,7 @@
|
||||
|
||||
cleancorefile()
|
||||
{
|
||||
rm -f core core.*
|
||||
rm -f "$tmpdir/core.$_pid"
|
||||
}
|
||||
|
||||
checkcorefile()
|
||||
@@ -26,12 +26,12 @@ checkcorefile()
|
||||
_known=""
|
||||
fi
|
||||
|
||||
_corefilelist=`echo core.*`
|
||||
if [ ! -f core ] && [ "$_corefilelist" = "core.*" ]
|
||||
#check pid of last test run by the test suite
|
||||
if [ -f "$tmpdir/core.$_pid" ]
|
||||
then
|
||||
_corefile=no
|
||||
else
|
||||
_corefile=yes
|
||||
else
|
||||
_corefile=no
|
||||
fi
|
||||
|
||||
if [ "$requirement" = "yes" -a "$_corefile" = "no" ] ; then
|
||||
@@ -54,7 +54,7 @@ checkcorefile()
|
||||
fi
|
||||
fi
|
||||
|
||||
unset _corefile _corefilelist
|
||||
unset _corefile
|
||||
cleancorefile
|
||||
}
|
||||
|
||||
@@ -70,6 +70,13 @@ nocoreperm=ix
|
||||
|
||||
# enable coredumps
|
||||
ulimit -c 1000000
|
||||
|
||||
# set the core_pattern so we can reliably check for the expected cores
|
||||
#echo -n "core dump pattern: " ; cat /proc/sys/kernel/core_pattern
|
||||
dumppattern=`cat /proc/sys/kernel/core_pattern`
|
||||
echo "$tmpdir/core.%p" > /proc/sys/kernel/core_pattern
|
||||
#echo -n "set core patter to: " ; cat /proc/sys/kernel/core_pattern
|
||||
|
||||
cleancorefile
|
||||
checkcorefile no "COREDUMP (starting with clean slate)"
|
||||
|
||||
@@ -79,20 +86,45 @@ echo "*** A 'Segmentation Fault' message from bash is expected for the following
|
||||
runchecktest "COREDUMP (no confinement)" signal11
|
||||
checkcorefile yes "COREDUMP (no confinement)"
|
||||
|
||||
# PASS TEST, with r confinement
|
||||
# FAIL TEST, with r confinement, no permission to write core file
|
||||
cleancorefile
|
||||
genprofile -I $test:$coreperm
|
||||
|
||||
echo
|
||||
echo "*** A 'Segmentation Fault' message from bash is expected for the following test"
|
||||
runchecktest "COREDUMP ($coreperm confinement)" signal11
|
||||
checkcorefile no "COREDUMP ($coreperm confinement)"
|
||||
|
||||
# PASS TEST, with r confinement, permission to write core file
|
||||
cleancorefile
|
||||
genprofile -I $test:$coreperm $tmpdir/core.*:w
|
||||
|
||||
echo
|
||||
echo "*** A 'Segmentation Fault' message from bash is expected for the following test"
|
||||
runchecktest "COREDUMP ($coreperm confinement)" signal11
|
||||
checkcorefile yes "COREDUMP ($coreperm confinement)"
|
||||
|
||||
# FAIL TEST, with x confinement
|
||||
# FAIL TEST, with x confinement, no permission to write core file
|
||||
cleancorefile
|
||||
genprofile -I $test:$nocoreperm
|
||||
genprofile -I $test:$nocoreperm
|
||||
|
||||
echo
|
||||
echo "*** A 'Segmentation Fault' message from bash is expected for the following test"
|
||||
runchecktest "COREDUMP ($nocoreperm confinement)" signal11
|
||||
checkcorefile no "COREDUMP ($nocoreperm confinement)"
|
||||
|
||||
# FAIL TEST, with x confinement, permission to write core file
|
||||
# should fail because of no read permission on executable (see man 5 core)
|
||||
cleancorefile
|
||||
genprofile -I $test:$nocoreperm $tmpdir/core.*:w
|
||||
|
||||
echo
|
||||
echo "*** A 'Segmentation Fault' message from bash is expected for the following test"
|
||||
runchecktest "COREDUMP ($nocoreperm confinement)" signal11
|
||||
checkcorefile xno "COREDUMP ($nocoreperm confinement)"
|
||||
|
||||
|
||||
|
||||
|
||||
#restore core dump pattern
|
||||
echo "$dumppattern" > /proc/sys/kernel/core_pattern
|
||||
|
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user