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17 Commits
v2.8-beta5
...
v2.8.0
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@@ -1 +1 @@
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||||
2.7.102
|
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2.8.0
|
||||
|
@@ -0,0 +1,553 @@
|
||||
From 125fccb600288968aa3395883c0a394c47176fcd Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 10 Aug 2011 22:02:39 -0700
|
||||
Subject: [PATCH 1/3] AppArmor: compatibility patch for v5 network controll
|
||||
|
||||
Add compatibility for v5 network rules.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
include/linux/lsm_audit.h | 4 +
|
||||
security/apparmor/Makefile | 19 +++-
|
||||
security/apparmor/include/net.h | 40 +++++++++
|
||||
security/apparmor/include/policy.h | 3 +
|
||||
security/apparmor/lsm.c | 112 ++++++++++++++++++++++++
|
||||
security/apparmor/net.c | 170 ++++++++++++++++++++++++++++++++++++
|
||||
security/apparmor/policy.c | 1 +
|
||||
security/apparmor/policy_unpack.c | 48 +++++++++-
|
||||
8 files changed, 394 insertions(+), 3 deletions(-)
|
||||
create mode 100644 security/apparmor/include/net.h
|
||||
create mode 100644 security/apparmor/net.c
|
||||
|
||||
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
|
||||
index 88e78de..c63979a 100644
|
||||
--- a/include/linux/lsm_audit.h
|
||||
+++ b/include/linux/lsm_audit.h
|
||||
@@ -124,6 +124,10 @@ struct common_audit_data {
|
||||
u32 denied;
|
||||
uid_t ouid;
|
||||
} fs;
|
||||
+ struct {
|
||||
+ int type, protocol;
|
||||
+ struct sock *sk;
|
||||
+ } net;
|
||||
};
|
||||
} apparmor_audit_data;
|
||||
#endif
|
||||
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
|
||||
index 2dafe50..7cefef9 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 af_names.h
|
||||
|
||||
|
||||
# Build a lower case string table of capability names
|
||||
@@ -44,9 +44,24 @@ cmd_make-rlim = echo "static const char *rlim_names[] = {" > $@ ;\
|
||||
sed -r -n "s/^\# ?define[ \t]+(RLIMIT_[A-Z0-9_]+).*/\1,/p" $< >> $@ ;\
|
||||
echo "};" >> $@
|
||||
|
||||
+# Build a lower case string table of address family names.
|
||||
+# Transform lines from
|
||||
+# #define AF_INET 2 /* Internet IP Protocol */
|
||||
+# to
|
||||
+# [2] = "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 "};" >> $@
|
||||
+
|
||||
+
|
||||
$(obj)/capability.o : $(obj)/capability_names.h
|
||||
$(obj)/resource.o : $(obj)/rlim_names.h
|
||||
+$(obj)/net.o : $(obj)/af_names.h
|
||||
$(obj)/capability_names.h : $(srctree)/include/linux/capability.h
|
||||
$(call cmd,make-caps)
|
||||
$(obj)/rlim_names.h : $(srctree)/include/asm-generic/resource.h
|
||||
$(call cmd,make-rlim)
|
||||
+$(obj)/af_names.h : $(srctree)/include/linux/socket.h
|
||||
+ $(call cmd,make-af)
|
||||
\ No newline at end of file
|
||||
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
|
||||
new file mode 100644
|
||||
index 0000000..3c7d599
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/include/net.h
|
||||
@@ -0,0 +1,40 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation definitions.
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2010 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>
|
||||
+
|
||||
+/* 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 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 aeda5cf..6776929 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 *profile_mode_names[];
|
||||
@@ -145,6 +146,7 @@ struct aa_namespace {
|
||||
* @size: the memory consumed by this profiles rules
|
||||
* @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
|
||||
@@ -181,6 +183,7 @@ struct aa_profile {
|
||||
|
||||
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 3783202..7459547 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"
|
||||
@@ -621,6 +622,104 @@ 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",
|
||||
|
||||
@@ -652,6 +751,19 @@ 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..1765901
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -0,0 +1,170 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2010 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 "af_names.h"
|
||||
+
|
||||
+static const char *sock_type_names[] = {
|
||||
+ "unknown(0)",
|
||||
+ "stream",
|
||||
+ "dgram",
|
||||
+ "raw",
|
||||
+ "rdm",
|
||||
+ "seqpacket",
|
||||
+ "dccp",
|
||||
+ "unknown(7)",
|
||||
+ "unknown(8)",
|
||||
+ "unknown(9)",
|
||||
+ "packet",
|
||||
+};
|
||||
+
|
||||
+/* 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;
|
||||
+ if (sk) {
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, NET);
|
||||
+ } else {
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, NONE);
|
||||
+ }
|
||||
+ /* todo fill in socket addr info */
|
||||
+
|
||||
+ 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 4f0eade..4d5ce13 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 741dd13..ee8043e 100644
|
||||
--- a/security/apparmor/policy_unpack.c
|
||||
+++ b/security/apparmor/policy_unpack.c
|
||||
@@ -190,6 +190,19 @@ 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)) {
|
||||
@@ -468,7 +481,8 @@ static struct aa_profile *unpack_profile(struct aa_ext *e)
|
||||
{
|
||||
struct aa_profile *profile = NULL;
|
||||
const char *name = NULL;
|
||||
- int error = -EPROTO;
|
||||
+ size_t size = 0;
|
||||
+ int i, error = -EPROTO;
|
||||
kernel_cap_t tmpcap;
|
||||
u32 tmp;
|
||||
|
||||
@@ -559,6 +573,38 @@ 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;
|
||||
+
|
||||
/* get file rules */
|
||||
profile->file.dfa = unpack_dfa(e);
|
||||
if (IS_ERR(profile->file.dfa)) {
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,391 @@
|
||||
From 004192fb5223c7b81a949e36a080a5da56132826 Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 10 Aug 2011 22:02:40 -0700
|
||||
Subject: [PATCH 2/3] AppArmor: compatibility patch for v5 interface
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/Kconfig | 9 +
|
||||
security/apparmor/Makefile | 1 +
|
||||
security/apparmor/apparmorfs-24.c | 287 ++++++++++++++++++++++++++++++++
|
||||
security/apparmor/apparmorfs.c | 18 +-
|
||||
security/apparmor/include/apparmorfs.h | 6 +
|
||||
5 files changed, 319 insertions(+), 2 deletions(-)
|
||||
create mode 100644 security/apparmor/apparmorfs-24.c
|
||||
|
||||
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/Makefile b/security/apparmor/Makefile
|
||||
index 7cefef9..0bb604b 100644
|
||||
--- a/security/apparmor/Makefile
|
||||
+++ b/security/apparmor/Makefile
|
||||
@@ -5,6 +5,7 @@ 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
|
||||
+apparmor-$(CONFIG_SECURITY_APPARMOR_COMPAT_24) += apparmorfs-24.o
|
||||
|
||||
clean-files := capability_names.h rlim_names.h af_names.h
|
||||
|
||||
diff --git a/security/apparmor/apparmorfs-24.c b/security/apparmor/apparmorfs-24.c
|
||||
new file mode 100644
|
||||
index 0000000..dc8c744
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/apparmorfs-24.c
|
||||
@@ -0,0 +1,287 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor /sys/kernel/secrutiy/apparmor interface functions
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2010 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.
|
||||
+ *
|
||||
+ *
|
||||
+ * This file contain functions providing an interface for <= AppArmor 2.4
|
||||
+ * compatibility. It is dependent on CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ * being set (see Makefile).
|
||||
+ */
|
||||
+
|
||||
+#include <linux/security.h>
|
||||
+#include <linux/vmalloc.h>
|
||||
+#include <linux/module.h>
|
||||
+#include <linux/seq_file.h>
|
||||
+#include <linux/uaccess.h>
|
||||
+#include <linux/namei.h>
|
||||
+
|
||||
+#include "include/apparmor.h"
|
||||
+#include "include/audit.h"
|
||||
+#include "include/context.h"
|
||||
+#include "include/policy.h"
|
||||
+
|
||||
+
|
||||
+/* apparmor/matching */
|
||||
+static ssize_t aa_matching_read(struct file *file, char __user *buf,
|
||||
+ size_t size, loff_t *ppos)
|
||||
+{
|
||||
+ const char matching[] = "pattern=aadfa audit perms=crwxamlk/ "
|
||||
+ "user::other";
|
||||
+
|
||||
+ return simple_read_from_buffer(buf, size, ppos, matching,
|
||||
+ sizeof(matching) - 1);
|
||||
+}
|
||||
+
|
||||
+const struct file_operations aa_fs_matching_fops = {
|
||||
+ .read = aa_matching_read,
|
||||
+};
|
||||
+
|
||||
+/* apparmor/features */
|
||||
+static ssize_t aa_features_read(struct file *file, char __user *buf,
|
||||
+ size_t size, loff_t *ppos)
|
||||
+{
|
||||
+ const char features[] = "file=3.1 capability=2.0 network=1.0 "
|
||||
+ "change_hat=1.5 change_profile=1.1 " "aanamespaces=1.1 rlimit=1.1";
|
||||
+
|
||||
+ return simple_read_from_buffer(buf, size, ppos, features,
|
||||
+ sizeof(features) - 1);
|
||||
+}
|
||||
+
|
||||
+const struct file_operations aa_fs_features_fops = {
|
||||
+ .read = aa_features_read,
|
||||
+};
|
||||
+
|
||||
+/**
|
||||
+ * __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,
|
||||
+};
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 69ddb47..867995c 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -187,7 +187,11 @@ void __init aa_destroy_aafs(void)
|
||||
aafs_remove(".remove");
|
||||
aafs_remove(".replace");
|
||||
aafs_remove(".load");
|
||||
-
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ aafs_remove("profiles");
|
||||
+ aafs_remove("matching");
|
||||
+ aafs_remove("features");
|
||||
+#endif
|
||||
securityfs_remove(aa_fs_dentry);
|
||||
aa_fs_dentry = NULL;
|
||||
}
|
||||
@@ -218,7 +222,17 @@ static int __init aa_create_aafs(void)
|
||||
aa_fs_dentry = NULL;
|
||||
goto error;
|
||||
}
|
||||
-
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ error = aafs_create("matching", 0444, &aa_fs_matching_fops);
|
||||
+ if (error)
|
||||
+ goto error;
|
||||
+ error = aafs_create("features", 0444, &aa_fs_features_fops);
|
||||
+ if (error)
|
||||
+ goto error;
|
||||
+#endif
|
||||
+ error = aafs_create("profiles", 0440, &aa_fs_profiles_fops);
|
||||
+ if (error)
|
||||
+ goto error;
|
||||
error = aafs_create(".load", 0640, &aa_fs_profile_load);
|
||||
if (error)
|
||||
goto error;
|
||||
diff --git a/security/apparmor/include/apparmorfs.h b/security/apparmor/include/apparmorfs.h
|
||||
index cb1e93a..14f955c 100644
|
||||
--- a/security/apparmor/include/apparmorfs.h
|
||||
+++ b/security/apparmor/include/apparmorfs.h
|
||||
@@ -17,4 +17,10 @@
|
||||
|
||||
extern void __init aa_destroy_aafs(void);
|
||||
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+extern const struct file_operations aa_fs_matching_fops;
|
||||
+extern const struct file_operations aa_fs_features_fops;
|
||||
+extern const struct file_operations aa_fs_profiles_fops;
|
||||
+#endif
|
||||
+
|
||||
#endif /* __AA_APPARMORFS_H */
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,69 @@
|
||||
From e5d90918aa31f948ecec2f3c088567dbab30c90b Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 10 Aug 2011 22:02:41 -0700
|
||||
Subject: [PATCH 3/3] AppArmor: Allow dfa backward compatibility with broken
|
||||
userspace
|
||||
|
||||
The apparmor_parser when compiling policy could generate invalid dfas
|
||||
that did not have sufficient padding to avoid invalid references, when
|
||||
used by the kernel. The kernels check to verify the next/check table
|
||||
size was broken meaning invalid dfas were being created by userspace
|
||||
and not caught.
|
||||
|
||||
To remain compatible with old tools that are not fixed, pad the loaded
|
||||
dfas next/check table. The dfa's themselves are valid except for the
|
||||
high padding for potentially invalid transitions (high bounds error),
|
||||
which have a maximimum is 256 entries. So just allocate an extra null filled
|
||||
256 entries for the next/check tables. This will guarentee all bounds
|
||||
are good and invalid transitions go to the null (0) state.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/match.c | 17 +++++++++++++++++
|
||||
1 file changed, 17 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/match.c b/security/apparmor/match.c
|
||||
index 94de6b4..081491e 100644
|
||||
--- a/security/apparmor/match.c
|
||||
+++ b/security/apparmor/match.c
|
||||
@@ -57,8 +57,17 @@ static struct table_header *unpack_table(char *blob, size_t bsize)
|
||||
if (bsize < tsize)
|
||||
goto out;
|
||||
|
||||
+ /* Pad table allocation for next/check by 256 entries to remain
|
||||
+ * backwards compatible with old (buggy) tools and remain safe without
|
||||
+ * run time checks
|
||||
+ */
|
||||
+ if (th.td_id == YYTD_ID_NXT || th.td_id == YYTD_ID_CHK)
|
||||
+ tsize += 256 * th.td_flags;
|
||||
+
|
||||
table = kvmalloc(tsize);
|
||||
if (table) {
|
||||
+ /* ensure the pad is clear, else there will be errors */
|
||||
+ memset(table, 0, tsize);
|
||||
*table = th;
|
||||
if (th.td_flags == YYTD_DATA8)
|
||||
UNPACK_ARRAY(table->td_data, blob, th.td_lolen,
|
||||
@@ -134,11 +143,19 @@ static int verify_dfa(struct aa_dfa *dfa, int flags)
|
||||
goto out;
|
||||
|
||||
if (flags & DFA_FLAG_VERIFY_STATES) {
|
||||
+ int warning = 0;
|
||||
for (i = 0; i < state_count; i++) {
|
||||
if (DEFAULT_TABLE(dfa)[i] >= state_count)
|
||||
goto out;
|
||||
/* TODO: do check that DEF state recursion terminates */
|
||||
if (BASE_TABLE(dfa)[i] + 255 >= trans_count) {
|
||||
+ if (warning)
|
||||
+ continue;
|
||||
+ printk(KERN_WARNING "AppArmor DFA next/check "
|
||||
+ "upper bounds error fixed, upgrade "
|
||||
+ "user space tools \n");
|
||||
+ warning = 1;
|
||||
+ } else if (BASE_TABLE(dfa)[i] >= trans_count) {
|
||||
printk(KERN_ERR "AppArmor DFA next/check upper "
|
||||
"bounds error\n");
|
||||
goto out;
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,553 @@
|
||||
From 1023c7c2f9d9c5707147479104312c4c3d1a2c2b Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 10 Aug 2011 22:02:39 -0700
|
||||
Subject: [PATCH 1/3] AppArmor: compatibility patch for v5 network controll
|
||||
|
||||
Add compatibility for v5 network rules.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
include/linux/lsm_audit.h | 4 +
|
||||
security/apparmor/Makefile | 19 +++-
|
||||
security/apparmor/include/net.h | 40 +++++++++
|
||||
security/apparmor/include/policy.h | 3 +
|
||||
security/apparmor/lsm.c | 112 ++++++++++++++++++++++++
|
||||
security/apparmor/net.c | 170 ++++++++++++++++++++++++++++++++++++
|
||||
security/apparmor/policy.c | 1 +
|
||||
security/apparmor/policy_unpack.c | 48 +++++++++-
|
||||
8 files changed, 394 insertions(+), 3 deletions(-)
|
||||
create mode 100644 security/apparmor/include/net.h
|
||||
create mode 100644 security/apparmor/net.c
|
||||
|
||||
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
|
||||
index 88e78de..c63979a 100644
|
||||
--- a/include/linux/lsm_audit.h
|
||||
+++ b/include/linux/lsm_audit.h
|
||||
@@ -124,6 +124,10 @@ struct common_audit_data {
|
||||
u32 denied;
|
||||
uid_t ouid;
|
||||
} fs;
|
||||
+ struct {
|
||||
+ int type, protocol;
|
||||
+ struct sock *sk;
|
||||
+ } net;
|
||||
};
|
||||
} apparmor_audit_data;
|
||||
#endif
|
||||
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
|
||||
index 2dafe50..7cefef9 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 af_names.h
|
||||
|
||||
|
||||
# Build a lower case string table of capability names
|
||||
@@ -44,9 +44,24 @@ cmd_make-rlim = echo "static const char *rlim_names[] = {" > $@ ;\
|
||||
sed -r -n "s/^\# ?define[ \t]+(RLIMIT_[A-Z0-9_]+).*/\1,/p" $< >> $@ ;\
|
||||
echo "};" >> $@
|
||||
|
||||
+# Build a lower case string table of address family names.
|
||||
+# Transform lines from
|
||||
+# #define AF_INET 2 /* Internet IP Protocol */
|
||||
+# to
|
||||
+# [2] = "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 "};" >> $@
|
||||
+
|
||||
+
|
||||
$(obj)/capability.o : $(obj)/capability_names.h
|
||||
$(obj)/resource.o : $(obj)/rlim_names.h
|
||||
+$(obj)/net.o : $(obj)/af_names.h
|
||||
$(obj)/capability_names.h : $(srctree)/include/linux/capability.h
|
||||
$(call cmd,make-caps)
|
||||
$(obj)/rlim_names.h : $(srctree)/include/asm-generic/resource.h
|
||||
$(call cmd,make-rlim)
|
||||
+$(obj)/af_names.h : $(srctree)/include/linux/socket.h
|
||||
+ $(call cmd,make-af)
|
||||
\ No newline at end of file
|
||||
diff --git a/security/apparmor/include/net.h b/security/apparmor/include/net.h
|
||||
new file mode 100644
|
||||
index 0000000..3c7d599
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/include/net.h
|
||||
@@ -0,0 +1,40 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation definitions.
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2010 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>
|
||||
+
|
||||
+/* 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 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 aeda5cf..6776929 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 *profile_mode_names[];
|
||||
@@ -145,6 +146,7 @@ struct aa_namespace {
|
||||
* @size: the memory consumed by this profiles rules
|
||||
* @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
|
||||
@@ -181,6 +183,7 @@ struct aa_profile {
|
||||
|
||||
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 97ce8fa..a54adbc 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"
|
||||
@@ -620,6 +621,104 @@ 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",
|
||||
|
||||
@@ -651,6 +750,19 @@ 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..1765901
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/net.c
|
||||
@@ -0,0 +1,170 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor network mediation
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2010 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 "af_names.h"
|
||||
+
|
||||
+static const char *sock_type_names[] = {
|
||||
+ "unknown(0)",
|
||||
+ "stream",
|
||||
+ "dgram",
|
||||
+ "raw",
|
||||
+ "rdm",
|
||||
+ "seqpacket",
|
||||
+ "dccp",
|
||||
+ "unknown(7)",
|
||||
+ "unknown(8)",
|
||||
+ "unknown(9)",
|
||||
+ "packet",
|
||||
+};
|
||||
+
|
||||
+/* 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;
|
||||
+ if (sk) {
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, NET);
|
||||
+ } else {
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, NONE);
|
||||
+ }
|
||||
+ /* todo fill in socket addr info */
|
||||
+
|
||||
+ 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 4f0eade..4d5ce13 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 741dd13..ee8043e 100644
|
||||
--- a/security/apparmor/policy_unpack.c
|
||||
+++ b/security/apparmor/policy_unpack.c
|
||||
@@ -190,6 +190,19 @@ 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)) {
|
||||
@@ -468,7 +481,8 @@ static struct aa_profile *unpack_profile(struct aa_ext *e)
|
||||
{
|
||||
struct aa_profile *profile = NULL;
|
||||
const char *name = NULL;
|
||||
- int error = -EPROTO;
|
||||
+ size_t size = 0;
|
||||
+ int i, error = -EPROTO;
|
||||
kernel_cap_t tmpcap;
|
||||
u32 tmp;
|
||||
|
||||
@@ -559,6 +573,38 @@ 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;
|
||||
+
|
||||
/* get file rules */
|
||||
profile->file.dfa = unpack_dfa(e);
|
||||
if (IS_ERR(profile->file.dfa)) {
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,391 @@
|
||||
From da1ce2265ebb70860b9c137a542e48b170e4606b Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 10 Aug 2011 22:02:40 -0700
|
||||
Subject: [PATCH 2/3] AppArmor: compatibility patch for v5 interface
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/Kconfig | 9 +
|
||||
security/apparmor/Makefile | 1 +
|
||||
security/apparmor/apparmorfs-24.c | 287 ++++++++++++++++++++++++++++++++
|
||||
security/apparmor/apparmorfs.c | 18 +-
|
||||
security/apparmor/include/apparmorfs.h | 6 +
|
||||
5 files changed, 319 insertions(+), 2 deletions(-)
|
||||
create mode 100644 security/apparmor/apparmorfs-24.c
|
||||
|
||||
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/Makefile b/security/apparmor/Makefile
|
||||
index 7cefef9..0bb604b 100644
|
||||
--- a/security/apparmor/Makefile
|
||||
+++ b/security/apparmor/Makefile
|
||||
@@ -5,6 +5,7 @@ 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
|
||||
+apparmor-$(CONFIG_SECURITY_APPARMOR_COMPAT_24) += apparmorfs-24.o
|
||||
|
||||
clean-files := capability_names.h rlim_names.h af_names.h
|
||||
|
||||
diff --git a/security/apparmor/apparmorfs-24.c b/security/apparmor/apparmorfs-24.c
|
||||
new file mode 100644
|
||||
index 0000000..dc8c744
|
||||
--- /dev/null
|
||||
+++ b/security/apparmor/apparmorfs-24.c
|
||||
@@ -0,0 +1,287 @@
|
||||
+/*
|
||||
+ * AppArmor security module
|
||||
+ *
|
||||
+ * This file contains AppArmor /sys/kernel/secrutiy/apparmor interface functions
|
||||
+ *
|
||||
+ * Copyright (C) 1998-2008 Novell/SUSE
|
||||
+ * Copyright 2009-2010 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.
|
||||
+ *
|
||||
+ *
|
||||
+ * This file contain functions providing an interface for <= AppArmor 2.4
|
||||
+ * compatibility. It is dependent on CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ * being set (see Makefile).
|
||||
+ */
|
||||
+
|
||||
+#include <linux/security.h>
|
||||
+#include <linux/vmalloc.h>
|
||||
+#include <linux/module.h>
|
||||
+#include <linux/seq_file.h>
|
||||
+#include <linux/uaccess.h>
|
||||
+#include <linux/namei.h>
|
||||
+
|
||||
+#include "include/apparmor.h"
|
||||
+#include "include/audit.h"
|
||||
+#include "include/context.h"
|
||||
+#include "include/policy.h"
|
||||
+
|
||||
+
|
||||
+/* apparmor/matching */
|
||||
+static ssize_t aa_matching_read(struct file *file, char __user *buf,
|
||||
+ size_t size, loff_t *ppos)
|
||||
+{
|
||||
+ const char matching[] = "pattern=aadfa audit perms=crwxamlk/ "
|
||||
+ "user::other";
|
||||
+
|
||||
+ return simple_read_from_buffer(buf, size, ppos, matching,
|
||||
+ sizeof(matching) - 1);
|
||||
+}
|
||||
+
|
||||
+const struct file_operations aa_fs_matching_fops = {
|
||||
+ .read = aa_matching_read,
|
||||
+};
|
||||
+
|
||||
+/* apparmor/features */
|
||||
+static ssize_t aa_features_read(struct file *file, char __user *buf,
|
||||
+ size_t size, loff_t *ppos)
|
||||
+{
|
||||
+ const char features[] = "file=3.1 capability=2.0 network=1.0 "
|
||||
+ "change_hat=1.5 change_profile=1.1 " "aanamespaces=1.1 rlimit=1.1";
|
||||
+
|
||||
+ return simple_read_from_buffer(buf, size, ppos, features,
|
||||
+ sizeof(features) - 1);
|
||||
+}
|
||||
+
|
||||
+const struct file_operations aa_fs_features_fops = {
|
||||
+ .read = aa_features_read,
|
||||
+};
|
||||
+
|
||||
+/**
|
||||
+ * __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,
|
||||
+};
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index e39df6d..235e9fa 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -187,7 +187,11 @@ void __init aa_destroy_aafs(void)
|
||||
aafs_remove(".remove");
|
||||
aafs_remove(".replace");
|
||||
aafs_remove(".load");
|
||||
-
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ aafs_remove("profiles");
|
||||
+ aafs_remove("matching");
|
||||
+ aafs_remove("features");
|
||||
+#endif
|
||||
securityfs_remove(aa_fs_dentry);
|
||||
aa_fs_dentry = NULL;
|
||||
}
|
||||
@@ -218,7 +222,17 @@ static int __init aa_create_aafs(void)
|
||||
aa_fs_dentry = NULL;
|
||||
goto error;
|
||||
}
|
||||
-
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+ error = aafs_create("matching", 0444, &aa_fs_matching_fops);
|
||||
+ if (error)
|
||||
+ goto error;
|
||||
+ error = aafs_create("features", 0444, &aa_fs_features_fops);
|
||||
+ if (error)
|
||||
+ goto error;
|
||||
+#endif
|
||||
+ error = aafs_create("profiles", 0440, &aa_fs_profiles_fops);
|
||||
+ if (error)
|
||||
+ goto error;
|
||||
error = aafs_create(".load", 0640, &aa_fs_profile_load);
|
||||
if (error)
|
||||
goto error;
|
||||
diff --git a/security/apparmor/include/apparmorfs.h b/security/apparmor/include/apparmorfs.h
|
||||
index cb1e93a..14f955c 100644
|
||||
--- a/security/apparmor/include/apparmorfs.h
|
||||
+++ b/security/apparmor/include/apparmorfs.h
|
||||
@@ -17,4 +17,10 @@
|
||||
|
||||
extern void __init aa_destroy_aafs(void);
|
||||
|
||||
+#ifdef CONFIG_SECURITY_APPARMOR_COMPAT_24
|
||||
+extern const struct file_operations aa_fs_matching_fops;
|
||||
+extern const struct file_operations aa_fs_features_fops;
|
||||
+extern const struct file_operations aa_fs_profiles_fops;
|
||||
+#endif
|
||||
+
|
||||
#endif /* __AA_APPARMORFS_H */
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,69 @@
|
||||
From 5d05f2909c12f6f03581bca9c1fa52dafa10fb0f Mon Sep 17 00:00:00 2001
|
||||
From: John Johansen <john.johansen@canonical.com>
|
||||
Date: Wed, 10 Aug 2011 22:02:41 -0700
|
||||
Subject: [PATCH 3/3] AppArmor: Allow dfa backward compatibility with broken
|
||||
userspace
|
||||
|
||||
The apparmor_parser when compiling policy could generate invalid dfas
|
||||
that did not have sufficient padding to avoid invalid references, when
|
||||
used by the kernel. The kernels check to verify the next/check table
|
||||
size was broken meaning invalid dfas were being created by userspace
|
||||
and not caught.
|
||||
|
||||
To remain compatible with old tools that are not fixed, pad the loaded
|
||||
dfas next/check table. The dfa's themselves are valid except for the
|
||||
high padding for potentially invalid transitions (high bounds error),
|
||||
which have a maximimum is 256 entries. So just allocate an extra null filled
|
||||
256 entries for the next/check tables. This will guarentee all bounds
|
||||
are good and invalid transitions go to the null (0) state.
|
||||
|
||||
Signed-off-by: John Johansen <john.johansen@canonical.com>
|
||||
---
|
||||
security/apparmor/match.c | 17 +++++++++++++++++
|
||||
1 file changed, 17 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/match.c b/security/apparmor/match.c
|
||||
index 94de6b4..081491e 100644
|
||||
--- a/security/apparmor/match.c
|
||||
+++ b/security/apparmor/match.c
|
||||
@@ -57,8 +57,17 @@ static struct table_header *unpack_table(char *blob, size_t bsize)
|
||||
if (bsize < tsize)
|
||||
goto out;
|
||||
|
||||
+ /* Pad table allocation for next/check by 256 entries to remain
|
||||
+ * backwards compatible with old (buggy) tools and remain safe without
|
||||
+ * run time checks
|
||||
+ */
|
||||
+ if (th.td_id == YYTD_ID_NXT || th.td_id == YYTD_ID_CHK)
|
||||
+ tsize += 256 * th.td_flags;
|
||||
+
|
||||
table = kvmalloc(tsize);
|
||||
if (table) {
|
||||
+ /* ensure the pad is clear, else there will be errors */
|
||||
+ memset(table, 0, tsize);
|
||||
*table = th;
|
||||
if (th.td_flags == YYTD_DATA8)
|
||||
UNPACK_ARRAY(table->td_data, blob, th.td_lolen,
|
||||
@@ -134,11 +143,19 @@ static int verify_dfa(struct aa_dfa *dfa, int flags)
|
||||
goto out;
|
||||
|
||||
if (flags & DFA_FLAG_VERIFY_STATES) {
|
||||
+ int warning = 0;
|
||||
for (i = 0; i < state_count; i++) {
|
||||
if (DEFAULT_TABLE(dfa)[i] >= state_count)
|
||||
goto out;
|
||||
/* TODO: do check that DEF state recursion terminates */
|
||||
if (BASE_TABLE(dfa)[i] + 255 >= trans_count) {
|
||||
+ if (warning)
|
||||
+ continue;
|
||||
+ printk(KERN_WARNING "AppArmor DFA next/check "
|
||||
+ "upper bounds error fixed, upgrade "
|
||||
+ "user space tools \n");
|
||||
+ warning = 1;
|
||||
+ } else if (BASE_TABLE(dfa)[i] >= trans_count) {
|
||||
printk(KERN_ERR "AppArmor DFA next/check upper "
|
||||
"bounds error\n");
|
||||
goto out;
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,264 @@
|
||||
From 8de755e4dfdbc40bfcaca848ae6b5aeaf0ede0e8 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 1/3] 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>
|
||||
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
|
||||
---
|
||||
security/apparmor/apparmorfs.c | 227 ++++++++++++++++++++++++++++++++++++++++
|
||||
1 file changed, 227 insertions(+)
|
||||
|
||||
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
|
||||
index 16c15ec..89bdc62 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -182,6 +182,232 @@ const struct file_operations aa_fs_seq_file_ops = {
|
||||
.release = single_release,
|
||||
};
|
||||
|
||||
+/**
|
||||
+ * __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,
|
||||
+};
|
||||
+
|
||||
/** Base file system setup **/
|
||||
|
||||
static struct aa_fs_entry aa_fs_entry_file[] = {
|
||||
@@ -210,6 +436,7 @@ 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),
|
||||
+ AA_FS_FILE_FOPS("profiles", 0640, &aa_fs_profiles_fops),
|
||||
AA_FS_DIR("features", aa_fs_entry_features),
|
||||
{ }
|
||||
};
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,603 @@
|
||||
From 423e2cb454d75d6185eecd0c1b5cf6ccc2d8482d 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 2/3] 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 89bdc62..c66315d 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -427,6 +427,7 @@ 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 3868b1e..c1ff09c 100644
|
||||
--- a/security/apparmor/include/audit.h
|
||||
+++ b/security/apparmor/include/audit.h
|
||||
@@ -126,6 +126,10 @@ 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 ad05d39..3cde194 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"
|
||||
@@ -622,6 +623,104 @@ 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",
|
||||
|
||||
@@ -653,6 +752,19 @@ 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..084232b
|
||||
--- /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) {
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, NET);
|
||||
+ } else {
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, 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 f1f7506..b8100a7 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 deab7c7..8f8e9c1 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);
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -0,0 +1,957 @@
|
||||
From a94d5e11c0484af59e5feebf144cc48c186892ad 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 3/3] 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 c66315d..ff19009 100644
|
||||
--- a/security/apparmor/apparmorfs.c
|
||||
+++ b/security/apparmor/apparmorfs.c
|
||||
@@ -424,10 +424,23 @@ 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 cc3520d..b9f5ee9 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 6327685..dfdc47b 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 c1ff09c..7b90900c 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,
|
||||
@@ -121,6 +125,13 @@ 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 3cde194..4512cc6 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;
|
||||
@@ -512,6 +513,60 @@ 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)
|
||||
{
|
||||
@@ -729,6 +784,10 @@ 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..63d8493
|
||||
--- /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;
|
||||
+ }
|
||||
+
|
||||
+ COMMON_AUDIT_DATA_INIT(&sa, 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;
|
||||
+}
|
||||
--
|
||||
1.7.9.5
|
||||
|
@@ -158,6 +158,8 @@ $ac_distutils_result])
|
||||
AC_MSG_CHECKING([consistency of all components of python development environment])
|
||||
AC_LANG_PUSH([C])
|
||||
# save current global flags
|
||||
ac_save_LIBS="$LIBS"
|
||||
ac_save_CPPFLAGS="$CPPFLAGS"
|
||||
LIBS="$ac_save_LIBS $PYTHON_LDFLAGS"
|
||||
CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
|
||||
AC_TRY_LINK([
|
||||
|
@@ -3,7 +3,8 @@ INCLUDES = $(all_includes)
|
||||
BUILT_SOURCES = grammar.h scanner.h af_protos.h
|
||||
AM_LFLAGS = -v
|
||||
AM_YFLAGS = -d -p aalogparse_
|
||||
AM_CFLAGS = @CFLAGS@ -D_GNU_SOURCE -Wall
|
||||
AM_CFLAGS = -Wall
|
||||
AM_CPPFLAGS = -D_GNU_SOURCE
|
||||
scanner.h: scanner.l
|
||||
$(LEX) -v $<
|
||||
|
||||
|
@@ -10,7 +10,7 @@ WriteMakefile(
|
||||
'FIRST_MAKEFILE' => 'Makefile.perl',
|
||||
'ABSTRACT' => q[Perl interface to AppArmor] ,
|
||||
'VERSION' => q[@VERSION@],
|
||||
'INC' => q[-I@top_srcdir@/src @CFLAGS@],
|
||||
'INC' => q[@CPPFLAGS@ -I@top_srcdir@/src @CFLAGS@],
|
||||
'LIBS' => q[-L@top_builddir@/src/.libs/ -lapparmor @LIBS@],
|
||||
'OBJECT' => 'libapparmor_wrap.o', # $(OBJ_EXT)
|
||||
) ;
|
||||
|
@@ -10,8 +10,7 @@ AM_CFLAGS = -Wall
|
||||
noinst_PROGRAMS = test_multi.multi
|
||||
|
||||
test_multi_multi_SOURCES = test_multi.c
|
||||
test_multi_multi_CFLAGS = $(CFLAGS) -Wall
|
||||
test_multi_multi_LDFLAGS = $(LDFLAGS)
|
||||
test_multi_multi_CFLAGS = -Wall
|
||||
test_multi_multi_LDADD = -L../src/.libs -lapparmor
|
||||
|
||||
clean-local:
|
||||
|
@@ -118,7 +118,8 @@ po/${NAME}.pot: ${SRCS} ${HDRS}
|
||||
$(MAKE) -C po ${NAME}.pot NAME=${NAME} SOURCES="${SRCS} ${HDRS}"
|
||||
|
||||
techdoc.pdf: techdoc.tex
|
||||
while pdflatex $< ${BUILD_OUTPUT} || exit 1 ; \
|
||||
timestamp=$(shell date "+%Y%m%d%H%M%S+02'00'" -r $< );\
|
||||
while pdflatex "\def\fixedpdfdate{$$timestamp}\input $<" ${BUILD_OUTPUT} || exit 1 ; \
|
||||
grep -q "Label(s) may have changed" techdoc.log; \
|
||||
do :; done
|
||||
|
||||
@@ -302,7 +303,7 @@ clean: _clean
|
||||
rm -f $(NAME)*.tar.gz $(NAME)*.tgz
|
||||
rm -f af_names.h
|
||||
rm -f cap_names.h
|
||||
rm -rf techdoc.aux techdoc.log techdoc.pdf techdoc.toc techdor.txt techdoc/
|
||||
rm -rf techdoc.aux techdoc.out techdoc.log techdoc.pdf techdoc.toc techdoc.txt techdoc/
|
||||
$(MAKE) -s -C $(AAREDIR) clean
|
||||
$(MAKE) -s -C po clean
|
||||
$(MAKE) -s -C tst clean
|
||||
|
@@ -101,7 +101,8 @@ State *DFA::add_new_state(NodeSet *nodes, State *other)
|
||||
nnodev = nnodes_cache.insert(nnodes);
|
||||
anodes = anodes_cache.insert(anodes);
|
||||
|
||||
ProtoState proto(nnodev, anodes);
|
||||
ProtoState proto;
|
||||
proto.init(nnodev, anodes);
|
||||
State *state = new State(node_map.size(), proto, other);
|
||||
pair<NodeMap::iterator,bool> x = node_map.insert(proto, state);
|
||||
if (x.second == false) {
|
||||
|
@@ -310,7 +310,15 @@ public:
|
||||
hashedNodeVec *nnodes;
|
||||
NodeSet *anodes;
|
||||
|
||||
ProtoState(hashedNodeVec *n, NodeSet *a = NULL): nnodes(n), anodes(a) { };
|
||||
/* init is used instead of a constructor because ProtoState is used
|
||||
* in a union
|
||||
*/
|
||||
void init(hashedNodeVec *n, NodeSet *a = NULL)
|
||||
{
|
||||
nnodes = n;
|
||||
anodes = a;
|
||||
}
|
||||
|
||||
bool operator<(ProtoState const &rhs)const
|
||||
{
|
||||
if (nnodes == rhs.nnodes)
|
||||
@@ -338,7 +346,7 @@ public:
|
||||
* parition: Is a temporary work variable used during dfa minimization.
|
||||
* it can be replaced with a map, but that is slower and uses more
|
||||
* memory.
|
||||
* nodes: Is a temporary work variable used during dfa creation. It can
|
||||
* proto: Is a temporary work variable used during dfa creation. It can
|
||||
* be replaced by using the nodemap, but that is slower
|
||||
*/
|
||||
class State {
|
||||
@@ -379,8 +387,8 @@ public:
|
||||
|
||||
/* temp storage for State construction */
|
||||
union {
|
||||
Partition *partition;
|
||||
ProtoState proto;
|
||||
Partition *partition; /* used during minimization */
|
||||
ProtoState proto; /* used during creation */
|
||||
};
|
||||
};
|
||||
|
||||
|
@@ -5,6 +5,17 @@
|
||||
\usepackage{url}
|
||||
%\usepackage{times}
|
||||
|
||||
\usepackage[pdftex,
|
||||
pdfauthor={Andreas Gruenbacher and Seth Arnold},
|
||||
pdftitle={AppArmor Technical Documentation},%
|
||||
\ifx\fixedpdfdate\@empty\else
|
||||
pdfcreationdate={\fixedpdfdate},
|
||||
pdfmoddate={\fixedpdfdate},
|
||||
\fi
|
||||
pdfsubject={AppArmor},
|
||||
pdfkeywords={AppArmor}
|
||||
]{hyperref}
|
||||
|
||||
\hyphenation{App-Armor}
|
||||
\hyphenation{name-space}
|
||||
|
||||
@@ -14,7 +25,8 @@
|
||||
\author{Andreas Gruenbacher and Seth Arnold \\
|
||||
\url{{agruen,seth.arnold}@suse.de} \\
|
||||
SUSE Labs / Novell}
|
||||
%\date{}
|
||||
% don't include the (build!) date
|
||||
\date{}
|
||||
|
||||
\begin{document}
|
||||
|
||||
|
@@ -17,7 +17,7 @@
|
||||
|
||||
# .Xauthority files required for X connections, per user
|
||||
@{HOME}/.Xauthority r,
|
||||
owner /{,var/}run/gdm/*/database r,
|
||||
owner /{,var/}run/gdm{,3}/*/database r,
|
||||
owner /{,var/}run/lightdm/authority/[0-9]* r,
|
||||
|
||||
# the unix socket to use to connect to the display
|
||||
|
@@ -32,6 +32,10 @@
|
||||
/usr/bin/firefox Cxr -> sanitized_helper,
|
||||
/usr/lib/firefox*/firefox*.sh Cx -> sanitized_helper,
|
||||
|
||||
# Iceweasel
|
||||
/usr/bin/iceweasel Cxr -> sanitized_helper,
|
||||
/usr/lib/iceweasel/iceweasel Cx -> sanitized_helper,
|
||||
|
||||
# some unpackaged, but popular browsers
|
||||
/usr/lib/icecat-*/icecat Cx -> sanitized_helper,
|
||||
/usr/bin/opera Cx -> sanitized_helper,
|
||||
|
@@ -18,6 +18,5 @@
|
||||
/usr/bin/sylpheed Cx -> sanitized_helper,
|
||||
/usr/bin/tkrat Cx -> sanitized_helper,
|
||||
|
||||
/usr/lib/thunderbird/thunderbird Cx -> sanitized_helper,
|
||||
/usr/lib/thunderbird-[1-9]*/thunderbird{,.sh} Cx -> sanitized_helper,
|
||||
/usr/lib/thunderbird*/thunderbird{,.sh} Cx -> sanitized_helper,
|
||||
|
||||
|
@@ -48,6 +48,20 @@ profile sanitized_helper {
|
||||
# Allow exec of libexec applications in /usr/lib*
|
||||
/usr/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)
|
||||
/usr/share/software-center/* Pixr,
|
||||
|
||||
# While the chromium and chrome sandboxes are setuid root, they only link
|
||||
# in limited libraries so glibc's secure execution should be enough to not
|
||||
# require the santized_helper (ie, LD_PRELOAD will only use standard system
|
||||
# paths (man ld.so)).
|
||||
/usr/lib/chromium-browser/chromium-browser-sandbox PUxr,
|
||||
/opt/google/chrome/chrome-sandbox PUxr,
|
||||
/opt/google/chrome/google-chrome Pixr,
|
||||
/opt/google/chrome/chrome Pixr,
|
||||
/opt/google/chrome/lib*.so{,.*} m,
|
||||
|
||||
# Full access
|
||||
/ r,
|
||||
/** rwkl,
|
||||
|
@@ -9,7 +9,7 @@
|
||||
#
|
||||
# ------------------------------------------------------------------
|
||||
|
||||
@{TFTP_DIR}=/var/tftp
|
||||
@{TFTP_DIR}=/var/tftp /srv/tftpboot
|
||||
|
||||
#include <tunables/global>
|
||||
/usr/sbin/dnsmasq {
|
||||
|
@@ -151,9 +151,9 @@ do_test "noexist px" $bin/onexec noexist fail $bin/open $file
|
||||
genprofile 'change_profile->':$bin/rw $onexec:w -- image=$bin/rw $bin/open:rix $file:rw
|
||||
do_test "change profile - override rix" $bin/onexec $bin/rw pass $bin/open $file
|
||||
|
||||
# ONEXEC from CONFINED - change to rw profile, no exec profile to override
|
||||
# ONEXEC from CONFINED - change to rw profile, no exec profile to override, no explicit access to /proc/*/attr/exec
|
||||
genprofile 'change_profile->':$bin/rw -- image=$bin/rw $bin/open:rix $file:rw
|
||||
do_test "change profile - no onexec:w" $bin/onexec $bin/rw fail $bin/open $file
|
||||
do_test "change profile - no onexec:w" $bin/onexec $bin/rw pass $bin/open $file
|
||||
|
||||
# ONEXEC from CONFINED - don't change profile, make sure exec profile is applied
|
||||
genprofile 'change_profile->':$bin/rw $onexec:w $bin/open:rpx -- image=$bin/rw $bin/open:rix $file:rw -- image=$bin/open $file:rw
|
||||
|
@@ -4814,13 +4814,9 @@ sub sub_mode_to_str($) {
|
||||
$str .= "a" if ($mode & $AA_MAY_APPEND);
|
||||
$str .= "l" if ($mode & $AA_MAY_LINK);
|
||||
$str .= "k" if ($mode & $AA_MAY_LOCK);
|
||||
if ($mode & $AA_EXEC_UNCONFINED) {
|
||||
if ($mode & $AA_EXEC_UNSAFE) {
|
||||
$str .= "u";
|
||||
} else {
|
||||
$str .= "U";
|
||||
}
|
||||
}
|
||||
|
||||
# modes P and C *must* come before I and U; otherwise syntactically
|
||||
# invalid profiles result
|
||||
if ($mode & ($AA_EXEC_PROFILE | $AA_EXEC_NT)) {
|
||||
if ($mode & $AA_EXEC_UNSAFE) {
|
||||
$str .= "p";
|
||||
@@ -4835,7 +4831,18 @@ sub sub_mode_to_str($) {
|
||||
$str .= "C";
|
||||
}
|
||||
}
|
||||
|
||||
# modes P and C *must* come before I and U; otherwise syntactically
|
||||
# invalid profiles result
|
||||
if ($mode & $AA_EXEC_UNCONFINED) {
|
||||
if ($mode & $AA_EXEC_UNSAFE) {
|
||||
$str .= "u";
|
||||
} else {
|
||||
$str .= "U";
|
||||
}
|
||||
}
|
||||
$str .= "i" if ($mode & $AA_EXEC_INHERIT);
|
||||
|
||||
$str .= "x" if ($mode & $AA_MAY_EXEC);
|
||||
|
||||
return $str;
|
||||
|
@@ -32,8 +32,10 @@ PERLTOOLS = aa-genprof aa-logprof aa-autodep aa-audit aa-complain aa-enforce \
|
||||
TOOLS = ${PERLTOOLS} aa-decode aa-status
|
||||
MODULES = ${MODDIR}/AppArmor.pm ${MODDIR}/Repository.pm \
|
||||
${MODDIR}/Config.pm ${MODDIR}/Severity.pm
|
||||
PYTOOLS = aa-easyprof
|
||||
PYSETUP = python-tools-setup.py
|
||||
|
||||
MANPAGES = ${TOOLS:=.8} logprof.conf.5
|
||||
MANPAGES = ${TOOLS:=.8} logprof.conf.5 ${PYTOOLS:=.8}
|
||||
|
||||
all: ${MANPAGES} ${HTMLMANPAGES}
|
||||
$(MAKE) -C po all
|
||||
@@ -45,9 +47,10 @@ BINDIR=${DESTDIR}/usr/sbin
|
||||
CONFDIR=${DESTDIR}/etc/apparmor
|
||||
VENDOR_PERL=$(shell perl -e 'use Config; print $$Config{"vendorlib"};')
|
||||
PERLDIR=${DESTDIR}${VENDOR_PERL}/${MODDIR}
|
||||
PYPREFIX=/usr
|
||||
|
||||
po/${NAME}.pot: ${TOOLS}
|
||||
$(MAKE) -C po ${NAME}.pot NAME=${NAME} SOURCES="${TOOLS} ${MODULES}"
|
||||
po/${NAME}.pot: ${TOOLS} ${PYTOOLS}
|
||||
$(MAKE) -C po ${NAME}.pot NAME=${NAME} SOURCES="${TOOLS} ${MODULES} ${PYTOOLS}"
|
||||
|
||||
.PHONY: install
|
||||
install: ${MANPAGES} ${HTMLMANPAGES}
|
||||
@@ -62,6 +65,7 @@ install: ${MANPAGES} ${HTMLMANPAGES}
|
||||
$(MAKE) install_manpages DESTDIR=${DESTDIR}
|
||||
$(MAKE) -C vim install DESTDIR=${DESTDIR}
|
||||
ln -sf aa-status.8 ${DESTDIR}/${MANDIR}/man8/apparmor_status.8
|
||||
python ${PYSETUP} install --prefix=${PYPREFIX} --root=${DESTDIR} --version=${VERSION}
|
||||
|
||||
.PHONY: clean
|
||||
ifndef VERBOSE
|
||||
@@ -72,6 +76,8 @@ clean: _clean
|
||||
rm -f Make.rules
|
||||
$(MAKE) -C po clean
|
||||
$(MAKE) -C vim clean
|
||||
rm -rf staging/ build/
|
||||
rm -f apparmor/*.pyc
|
||||
|
||||
# ${CAPABILITIES} is defined in common/Make.rules
|
||||
.PHONY: check_severity_db
|
||||
@@ -92,3 +98,13 @@ check: check_severity_db
|
||||
for i in ${MODULES} ${PERLTOOLS} ; do \
|
||||
perl -c $$i || exit 1; \
|
||||
done
|
||||
tmpfile=$$(mktemp --tmpdir aa-pyflakes-XXXXXX); \
|
||||
for i in ${PYTOOLS} apparmor aa-status test/*.py; do \
|
||||
echo Checking $$i; \
|
||||
pyflakes $$i 2>&1 | grep -v "undefined name '_'" > $$tmpfile; \
|
||||
test -s $$tmpfile && cat $$tmpfile && rm -f $$tmpfile && exit 1; \
|
||||
done || true; \
|
||||
rm -f $$tmpfile
|
||||
for i in test/* ; do \
|
||||
python $$i || exit 1; \
|
||||
done
|
||||
|
65
utils/aa-easyprof
Executable file
65
utils/aa-easyprof
Executable file
@@ -0,0 +1,65 @@
|
||||
#! /usr/bin/env python
|
||||
# ------------------------------------------------------------------
|
||||
#
|
||||
# Copyright (C) 2011-2012 Canonical Ltd.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of version 2 of the GNU General Public
|
||||
# License published by the Free Software Foundation.
|
||||
#
|
||||
# ------------------------------------------------------------------
|
||||
|
||||
import apparmor.easyprof
|
||||
from apparmor.easyprof import AppArmorException, error
|
||||
import os
|
||||
import sys
|
||||
|
||||
if __name__ == "__main__":
|
||||
def usage():
|
||||
'''Return usage information'''
|
||||
return 'USAGE: %s [options] <path to binary>' % \
|
||||
os.path.basename(sys.argv[0])
|
||||
|
||||
(opt, args) = apparmor.easyprof.parse_args()
|
||||
binary = None
|
||||
|
||||
m = usage()
|
||||
if opt.show_policy_group and not opt.policy_groups:
|
||||
error("Must specify -p with --show-policy-group")
|
||||
elif not opt.template and not opt.policy_groups and len(args) < 1:
|
||||
error("Must specify full path to binary\n%s" % m)
|
||||
|
||||
binary = None
|
||||
if len(args) >= 1:
|
||||
binary = args[0]
|
||||
|
||||
try:
|
||||
easyp = apparmor.easyprof.AppArmorEasyProfile(binary, opt)
|
||||
except AppArmorException, e:
|
||||
error(e.value)
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
if opt.list_templates:
|
||||
apparmor.easyprof.print_basefilenames(easyp.get_templates())
|
||||
sys.exit(0)
|
||||
elif opt.template and opt.show_template:
|
||||
files = [os.path.join(easyp.dirs['templates'], opt.template)]
|
||||
apparmor.easyprof.print_files(files)
|
||||
sys.exit(0)
|
||||
elif opt.list_policy_groups:
|
||||
apparmor.easyprof.print_basefilenames(easyp.get_policy_groups())
|
||||
sys.exit(0)
|
||||
elif opt.policy_groups and opt.show_policy_group:
|
||||
for g in opt.policy_groups.split(','):
|
||||
files = [os.path.join(easyp.dirs['policygroups'], g)]
|
||||
apparmor.easyprof.print_files(files)
|
||||
sys.exit(0)
|
||||
elif binary == None:
|
||||
error("Must specify full path to binary\n%s" % m)
|
||||
|
||||
# if we made it here, generate a profile
|
||||
params = apparmor.easyprof.gen_policy_params(binary, opt)
|
||||
p = easyp.gen_policy(**params)
|
||||
print p,
|
||||
|
146
utils/aa-easyprof.pod
Normal file
146
utils/aa-easyprof.pod
Normal file
@@ -0,0 +1,146 @@
|
||||
# This publication is intellectual property of Canonical Ltd. Its contents
|
||||
# can be duplicated, either in part or in whole, provided that a copyright
|
||||
# label is visibly located on each copy.
|
||||
#
|
||||
# All information found in this book has been compiled with utmost
|
||||
# attention to detail. However, this does not guarantee complete accuracy.
|
||||
# Neither Canonical Ltd, the authors, nor the translators shall be held
|
||||
# liable for possible errors or the consequences thereof.
|
||||
#
|
||||
# Many of the software and hardware descriptions cited in this book
|
||||
# are registered trademarks. All trade names are subject to copyright
|
||||
# restrictions and may be registered trade marks. Canonical Ltd
|
||||
# essentially adheres to the manufacturer's spelling.
|
||||
#
|
||||
# Names of products and trademarks appearing in this book (with or without
|
||||
# specific notation) are likewise subject to trademark and trade protection
|
||||
# laws and may thus fall under copyright restrictions.
|
||||
#
|
||||
|
||||
=pod
|
||||
|
||||
=head1 NAME
|
||||
|
||||
aa-easyprof - AppArmor profile generation made easy.
|
||||
|
||||
=head1 SYNOPSIS
|
||||
|
||||
B<aa-easyprof> [option] <path to binary>
|
||||
|
||||
=head1 DESCRIPTION
|
||||
|
||||
B<aa-easyprof> provides an easy to use interface for AppArmor policy
|
||||
generation. B<aa-easyprof> supports the use of templates and policy groups to
|
||||
quickly profile an application. Please note that while this tool can help
|
||||
with policy generation, its utility is dependent on the quality of the
|
||||
templates, policy groups and abstractions used. Also, this tool may create
|
||||
policy which is less restricted than creating policy by hand or with
|
||||
B<aa-genprof> and B<aa-logprof>.
|
||||
|
||||
=head1 OPTIONS
|
||||
|
||||
B<aa-easyprof> accepts the following arguments:
|
||||
|
||||
=over 4
|
||||
|
||||
=item -t TEMPLATE, --template=TEMPLATE
|
||||
|
||||
Specify which template to use. May specify either a system template from
|
||||
/usr/share/apparmor/easyprof/templates or a filename for the template to
|
||||
use. If not specified, use /usr/share/apparmor/easyprof/templates/default.
|
||||
|
||||
=item -p POLICYGROUPS, --policy-groups=POLICYGROUPS
|
||||
|
||||
Specify POLICY as a comma-separated list of policy groups. See --list-templates
|
||||
for supported policy groups. The available policy groups are in
|
||||
/usr/share/apparmor/easyprof/policy. Policy groups are simply groupings of
|
||||
AppArmor rules or policies. They are similar to AppArmor abstractions, but
|
||||
usually encompass more policy rules.
|
||||
|
||||
=item -a ABSTRACTIONS, --abstractions=ABSTRACTIONS
|
||||
|
||||
Specify ABSTRACTIONS as a comma-separated list of AppArmor abstractions. It is
|
||||
usually recommended you use policy groups instead, but this is provided as a
|
||||
convenience. AppArmor abstractions are located in /etc/apparmor.d/abstractions.
|
||||
See apparmor.d(5) for details.
|
||||
|
||||
=item -r PATH, --read-path=PATH
|
||||
|
||||
Specify a PATH to allow owner reads. May be specified multiple times. If the
|
||||
PATH ends in a '/', then PATH is treated as a directory and reads are allowed
|
||||
to all files under this directory. Can optionally use '/*' at the end of the
|
||||
PATH to only allow reads to files directly in PATH.
|
||||
|
||||
=item -w PATH, --write-dir=PATH
|
||||
|
||||
Like --read-path but also allow owner writes in additions to reads.
|
||||
|
||||
=item -n NAME, --name=NAME
|
||||
|
||||
Specify NAME of policy. If not specified, NAME is set to the name of the
|
||||
binary. The NAME of the policy is often used as part of the path in the
|
||||
various templates.
|
||||
|
||||
=item --template-var="@{VAR}=VALUE"
|
||||
|
||||
Set VAR to VALUE in the resulting policy. This typically only makes sense if
|
||||
the specified template uses this value. May be specified multiple times.
|
||||
|
||||
=item --list-templates
|
||||
|
||||
List available templates.
|
||||
|
||||
=item --show-template=TEMPLATE
|
||||
|
||||
Display template specified with --template.
|
||||
|
||||
=item --templates-dir=PATH
|
||||
|
||||
Use PATH instead of system templates directory.
|
||||
|
||||
=item --list-policy-groups
|
||||
|
||||
List available policy groups.
|
||||
|
||||
=item --show-policy-group
|
||||
|
||||
Display policy groups specified with --policy.
|
||||
|
||||
=item --policy-groups-dir=PATH
|
||||
|
||||
Use PATH instead of system policy-groups directory.
|
||||
|
||||
=item --author
|
||||
|
||||
Specify author of the policy.
|
||||
|
||||
=item --copyright
|
||||
|
||||
Specify copyright of the policy.
|
||||
|
||||
=item --comment
|
||||
|
||||
Specify comment for the policy.
|
||||
|
||||
=back
|
||||
|
||||
=head1 EXAMPLE
|
||||
|
||||
Example usage for a program named 'foo' which is installed in /opt/foo:
|
||||
|
||||
=over
|
||||
|
||||
$ aa-easyprof --template=user-application --template-var="@{APPNAME}=foo" --policy-groups=opt-application,user-application /opt/foo/bin/FooApp
|
||||
|
||||
=back
|
||||
|
||||
=head1 BUGS
|
||||
|
||||
If you find any additional bugs, please report them to Launchpad at
|
||||
L<https://bugs.launchpad.net/apparmor/+filebug>.
|
||||
|
||||
=head1 SEE ALSO
|
||||
|
||||
apparmor(7) apparmor.d(5)
|
||||
|
||||
=cut
|
9
utils/apparmor/__init__.py
Normal file
9
utils/apparmor/__init__.py
Normal file
@@ -0,0 +1,9 @@
|
||||
# ------------------------------------------------------------------
|
||||
#
|
||||
# Copyright (C) 2011-2012 Canonical Ltd.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of version 2 of the GNU General Public
|
||||
# License published by the Free Software Foundation.
|
||||
#
|
||||
# ------------------------------------------------------------------
|
567
utils/apparmor/easyprof.py
Normal file
567
utils/apparmor/easyprof.py
Normal file
@@ -0,0 +1,567 @@
|
||||
# ------------------------------------------------------------------
|
||||
#
|
||||
# Copyright (C) 2011-2012 Canonical Ltd.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of version 2 of the GNU General Public
|
||||
# License published by the Free Software Foundation.
|
||||
#
|
||||
# ------------------------------------------------------------------
|
||||
|
||||
import codecs
|
||||
import glob
|
||||
import optparse
|
||||
import os
|
||||
import re
|
||||
import subprocess
|
||||
import sys
|
||||
import tempfile
|
||||
|
||||
#
|
||||
# TODO: move this out to the common library
|
||||
#
|
||||
#from apparmor import AppArmorException
|
||||
class AppArmorException(Exception):
|
||||
'''This class represents AppArmor exceptions'''
|
||||
def __init__(self, value):
|
||||
self.value = value
|
||||
|
||||
def __str__(self):
|
||||
return repr(self.value)
|
||||
#
|
||||
# End common
|
||||
#
|
||||
|
||||
DEBUGGING = False
|
||||
|
||||
#
|
||||
# TODO: move this out to a utilities library
|
||||
#
|
||||
def error(out, exit_code=1, do_exit=True):
|
||||
'''Print error message and exit'''
|
||||
try:
|
||||
print >> sys.stderr, "ERROR: %s" % (out)
|
||||
except IOError:
|
||||
pass
|
||||
|
||||
if do_exit:
|
||||
sys.exit(exit_code)
|
||||
|
||||
|
||||
def warn(out):
|
||||
'''Print warning message'''
|
||||
try:
|
||||
print >> sys.stderr, "WARN: %s" % (out)
|
||||
except IOError:
|
||||
pass
|
||||
|
||||
|
||||
def msg(out, output=sys.stdout):
|
||||
'''Print message'''
|
||||
try:
|
||||
print >> output, "%s" % (out)
|
||||
except IOError:
|
||||
pass
|
||||
|
||||
|
||||
def cmd(command):
|
||||
'''Try to execute the given command.'''
|
||||
debug(command)
|
||||
try:
|
||||
sp = subprocess.Popen(command, stdout=subprocess.PIPE,
|
||||
stderr=subprocess.STDOUT)
|
||||
except OSError, ex:
|
||||
return [127, str(ex)]
|
||||
|
||||
out = sp.communicate()[0]
|
||||
return [sp.returncode, out]
|
||||
|
||||
|
||||
def cmd_pipe(command1, command2):
|
||||
'''Try to pipe command1 into command2.'''
|
||||
try:
|
||||
sp1 = subprocess.Popen(command1, stdout=subprocess.PIPE)
|
||||
sp2 = subprocess.Popen(command2, stdin=sp1.stdout)
|
||||
except OSError, ex:
|
||||
return [127, str(ex)]
|
||||
|
||||
out = sp2.communicate()[0]
|
||||
return [sp2.returncode, out]
|
||||
|
||||
|
||||
def debug(out):
|
||||
'''Print debug message'''
|
||||
if DEBUGGING:
|
||||
try:
|
||||
print >> sys.stderr, "DEBUG: %s" % (out)
|
||||
except IOError:
|
||||
pass
|
||||
|
||||
|
||||
def valid_binary_path(path):
|
||||
'''Validate name'''
|
||||
try:
|
||||
a_path = os.path.abspath(path)
|
||||
except Exception:
|
||||
debug("Could not find absolute path for binary")
|
||||
return False
|
||||
|
||||
if path != a_path:
|
||||
debug("Binary should use a normalized absolute path")
|
||||
return False
|
||||
|
||||
if not os.path.exists(a_path):
|
||||
return True
|
||||
|
||||
r_path = os.path.realpath(path)
|
||||
if r_path != a_path:
|
||||
debug("Binary should not be a symlink")
|
||||
return False
|
||||
|
||||
return True
|
||||
|
||||
|
||||
def valid_variable_name(var):
|
||||
'''Validate variable name'''
|
||||
if re.search(r'[a-zA-Z0-9_]+$', var):
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def valid_path(path):
|
||||
'''Valid path'''
|
||||
# No relative paths
|
||||
m = "Invalid path: %s" % (path)
|
||||
if not path.startswith('/'):
|
||||
debug("%s (relative)" % (m))
|
||||
return False
|
||||
|
||||
try:
|
||||
os.path.normpath(path)
|
||||
except Exception:
|
||||
debug("%s (could not normalize)" % (m))
|
||||
return False
|
||||
return True
|
||||
|
||||
|
||||
def get_directory_contents(path):
|
||||
'''Find contents of the given directory'''
|
||||
if not valid_path(path):
|
||||
return None
|
||||
|
||||
files = []
|
||||
for f in glob.glob(path + "/*"):
|
||||
files.append(f)
|
||||
|
||||
files.sort()
|
||||
return files
|
||||
|
||||
def open_file_read(path):
|
||||
'''Open specified file read-only'''
|
||||
try:
|
||||
orig = codecs.open(path, 'r', "UTF-8")
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
return orig
|
||||
|
||||
|
||||
def verify_policy(policy):
|
||||
'''Verify policy compiles'''
|
||||
exe = "/sbin/apparmor_parser"
|
||||
if not os.path.exists(exe):
|
||||
rc, exe = cmd(['which', 'apparmor_parser'])
|
||||
if rc != 0:
|
||||
warn("Could not find apparmor_parser. Skipping verify")
|
||||
return True
|
||||
|
||||
fn = ""
|
||||
# if policy starts with '/' and is one line, assume it is a path
|
||||
if len(policy.splitlines()) == 1 and valid_path(policy):
|
||||
fn = policy
|
||||
else:
|
||||
f, fn = tempfile.mkstemp(prefix='aa-easyprof')
|
||||
os.write(f, policy)
|
||||
os.close(f)
|
||||
|
||||
rc, out = cmd([exe, '-p', fn])
|
||||
os.unlink(fn)
|
||||
if rc == 0:
|
||||
return True
|
||||
return False
|
||||
|
||||
#
|
||||
# End utility functions
|
||||
#
|
||||
|
||||
|
||||
class AppArmorEasyProfile:
|
||||
'''Easy profile class'''
|
||||
def __init__(self, binary, opt):
|
||||
self.conffile = "/etc/apparmor/easyprof.conf"
|
||||
if opt.conffile:
|
||||
self.conffile = os.path.abspath(opt.conffile)
|
||||
|
||||
self.dirs = dict()
|
||||
if os.path.isfile(self.conffile):
|
||||
self._get_defaults()
|
||||
|
||||
if opt.templates_dir and os.path.isdir(opt.templates_dir):
|
||||
self.dirs['templates'] = os.path.abspath(opt.templates_dir)
|
||||
elif not opt.templates_dir and \
|
||||
opt.template and \
|
||||
os.path.isfile(opt.template) and \
|
||||
valid_path(opt.template):
|
||||
# If we specified the template and it is an absolute path, just set
|
||||
# the templates directory to the parent of the template so we don't
|
||||
# have to require --template-dir with absolute paths.
|
||||
self.dirs['templates'] = os.path.abspath(os.path.dirname(opt.template))
|
||||
if opt.policy_groups_dir and os.path.isdir(opt.policy_groups_dir):
|
||||
self.dirs['policygroups'] = os.path.abspath(opt.policy_groups_dir)
|
||||
|
||||
if not self.dirs.has_key('templates'):
|
||||
raise AppArmorException("Could not find templates directory")
|
||||
if not self.dirs.has_key('policygroups'):
|
||||
raise AppArmorException("Could not find policygroups directory")
|
||||
|
||||
self.aa_topdir = "/etc/apparmor.d"
|
||||
|
||||
self.binary = binary
|
||||
if binary != None:
|
||||
if not valid_binary_path(binary):
|
||||
raise AppArmorException("Invalid path for binary: '%s'" % binary)
|
||||
|
||||
self.set_template(opt.template)
|
||||
self.set_policygroup(opt.policy_groups)
|
||||
if opt.name:
|
||||
self.set_name(opt.name)
|
||||
elif self.binary != None:
|
||||
self.set_name(self.binary)
|
||||
|
||||
self.templates = get_directory_contents(self.dirs['templates'])
|
||||
self.policy_groups = get_directory_contents(self.dirs['policygroups'])
|
||||
|
||||
def _get_defaults(self):
|
||||
'''Read in defaults from configuration'''
|
||||
if not os.path.exists(self.conffile):
|
||||
raise AppArmorException("Could not find '%s'" % self.conffile)
|
||||
|
||||
# Read in the configuration
|
||||
f = open_file_read(self.conffile)
|
||||
|
||||
pat = re.compile(r'^\w+=".*"?')
|
||||
for line in f:
|
||||
if not pat.search(line):
|
||||
continue
|
||||
if line.startswith("POLICYGROUPS_DIR="):
|
||||
d = re.split(r'=', line.strip())[1].strip('["\']')
|
||||
self.dirs['policygroups'] = d
|
||||
elif line.startswith("TEMPLATES_DIR="):
|
||||
d = re.split(r'=', line.strip())[1].strip('["\']')
|
||||
self.dirs['templates'] = d
|
||||
f.close()
|
||||
|
||||
keys = self.dirs.keys()
|
||||
if 'templates' not in keys:
|
||||
raise AppArmorException("Could not find TEMPLATES_DIR in '%s'" % self.conffile)
|
||||
if 'policygroups' not in keys:
|
||||
raise AppArmorException("Could not find POLICYGROUPS_DIR in '%s'" % self.conffile)
|
||||
|
||||
for k in self.dirs.keys():
|
||||
if not os.path.isdir(self.dirs[k]):
|
||||
raise AppArmorException("Could not find '%s'" % self.dirs[k])
|
||||
|
||||
def set_name(self, name):
|
||||
'''Set name of policy'''
|
||||
self.name = name
|
||||
|
||||
def get_template(self):
|
||||
'''Get contents of current template'''
|
||||
return open(self.template).read()
|
||||
|
||||
def set_template(self, template):
|
||||
'''Set current template'''
|
||||
self.template = template
|
||||
if not template.startswith('/'):
|
||||
self.template = os.path.join(self.dirs['templates'], template)
|
||||
if not os.path.exists(self.template):
|
||||
raise AppArmorException('%s does not exist' % (self.template))
|
||||
|
||||
def get_templates(self):
|
||||
'''Get list of all available templates by filename'''
|
||||
return self.templates
|
||||
|
||||
def get_policygroup(self, policygroup):
|
||||
'''Get contents of specific policygroup'''
|
||||
p = policygroup
|
||||
if not p.startswith('/'):
|
||||
p = os.path.join(self.dirs['policygroups'], p)
|
||||
if self.policy_groups == None or not p in self.policy_groups:
|
||||
raise AppArmorException("Policy group '%s' does not exist" % p)
|
||||
return open(p).read()
|
||||
|
||||
def set_policygroup(self, policygroups):
|
||||
'''Set policygroups'''
|
||||
self.policy_groups = []
|
||||
if policygroups != None:
|
||||
for p in policygroups.split(','):
|
||||
if not p.startswith('/'):
|
||||
p = os.path.join(self.dirs['policygroups'], p)
|
||||
if not os.path.exists(p):
|
||||
raise AppArmorException('%s does not exist' % (p))
|
||||
self.policy_groups.append(p)
|
||||
|
||||
def get_policy_groups(self):
|
||||
'''Get list of all policy groups by filename'''
|
||||
return self.policy_groups
|
||||
|
||||
def gen_abstraction_rule(self, abstraction):
|
||||
'''Generate an abstraction rule'''
|
||||
p = os.path.join(self.aa_topdir, "abstractions", abstraction)
|
||||
if not os.path.exists(p):
|
||||
raise AppArmorException("%s does not exist" % p)
|
||||
return "#include <abstractions/%s>" % abstraction
|
||||
|
||||
def gen_variable_declaration(self, dec):
|
||||
'''Generate a variable declaration'''
|
||||
if not re.search(r'^@\{[a-zA-Z_]+\}=.+', dec):
|
||||
raise AppArmorException("Invalid variable declaration '%s'" % dec)
|
||||
return dec
|
||||
|
||||
def gen_path_rule(self, path, access):
|
||||
rule = []
|
||||
if not path.startswith('/') and not path.startswith('@'):
|
||||
raise AppArmorException("'%s' should not be relative path" % path)
|
||||
|
||||
owner = ""
|
||||
if path.startswith('/home/') or path.startswith("@{HOME"):
|
||||
owner = "owner "
|
||||
|
||||
if path.endswith('/'):
|
||||
rule.append("%s %s," % (path, access))
|
||||
rule.append("%s%s** %s," % (owner, path, access))
|
||||
elif path.endswith('/**') or path.endswith('/*'):
|
||||
rule.append("%s %s," % (os.path.dirname(path), access))
|
||||
rule.append("%s%s %s," % (owner, path, access))
|
||||
else:
|
||||
rule.append("%s%s %s," % (owner, path, access))
|
||||
|
||||
return rule
|
||||
|
||||
|
||||
def gen_policy(self, name, binary, template_var=[], abstractions=None, policy_groups=None, read_path=[], write_path=[], author=None, comment=None, copyright=None):
|
||||
def find_prefix(t, s):
|
||||
'''Calculate whitespace prefix based on occurrence of s in t'''
|
||||
pat = re.compile(r'^ *%s' % s)
|
||||
p = ""
|
||||
for line in t.splitlines():
|
||||
if pat.match(line):
|
||||
p = " " * (len(line) - len(line.lstrip()))
|
||||
break
|
||||
return p
|
||||
|
||||
policy = self.get_template()
|
||||
if '###ENDUSAGE###' in policy:
|
||||
found = False
|
||||
tmp = ""
|
||||
for line in policy.splitlines():
|
||||
if not found:
|
||||
if line.startswith('###ENDUSAGE###'):
|
||||
found = True
|
||||
continue
|
||||
tmp += line + "\n"
|
||||
policy = tmp
|
||||
|
||||
# Fill-in profile name and binary
|
||||
policy = re.sub(r'###NAME###', name, policy)
|
||||
policy = re.sub(r'###BINARY###', binary, policy)
|
||||
|
||||
# Fill-in various comment fields
|
||||
if comment != None:
|
||||
policy = re.sub(r'###COMMENT###', "Comment: %s" % comment, policy)
|
||||
|
||||
if author != None:
|
||||
policy = re.sub(r'###AUTHOR###', "Author: %s" % author, policy)
|
||||
|
||||
if copyright != None:
|
||||
policy = re.sub(r'###COPYRIGHT###', "Copyright: %s" % copyright, policy)
|
||||
|
||||
# Fill-in rules and variables with proper indenting
|
||||
search = '###ABSTRACTIONS###'
|
||||
prefix = find_prefix(policy, search)
|
||||
s = "%s# No abstractions specified" % prefix
|
||||
if abstractions != None:
|
||||
s = "%s# Specified abstractions" % (prefix)
|
||||
for i in abstractions.split(','):
|
||||
s += "\n%s%s" % (prefix, self.gen_abstraction_rule(i))
|
||||
policy = re.sub(r' *%s' % search, s, policy)
|
||||
|
||||
search = '###POLICYGROUPS###'
|
||||
prefix = find_prefix(policy, search)
|
||||
s = "%s# No policy groups specified" % prefix
|
||||
if policy_groups != None:
|
||||
s = "%s# Rules specified via policy groups" % (prefix)
|
||||
for i in policy_groups.split(','):
|
||||
for line in self.get_policygroup(i).splitlines():
|
||||
s += "\n%s%s" % (prefix, line)
|
||||
if i != policy_groups.split(',')[-1]:
|
||||
s += "\n"
|
||||
policy = re.sub(r' *%s' % search, s, policy)
|
||||
|
||||
search = '###VAR###'
|
||||
prefix = find_prefix(policy, search)
|
||||
s = "%s# No template variables specified" % prefix
|
||||
if len(template_var) > 0:
|
||||
s = "%s# Specified profile variables" % (prefix)
|
||||
for i in template_var:
|
||||
s += "\n%s%s" % (prefix, self.gen_variable_declaration(i))
|
||||
policy = re.sub(r' *%s' % search, s, policy)
|
||||
|
||||
search = '###READS###'
|
||||
prefix = find_prefix(policy, search)
|
||||
s = "%s# No read paths specified" % prefix
|
||||
if len(read_path) > 0:
|
||||
s = "%s# Specified read permissions" % (prefix)
|
||||
for i in read_path:
|
||||
for r in self.gen_path_rule(i, 'r'):
|
||||
s += "\n%s%s" % (prefix, r)
|
||||
policy = re.sub(r' *%s' % search, s, policy)
|
||||
|
||||
search = '###WRITES###'
|
||||
prefix = find_prefix(policy, search)
|
||||
s = "%s# No write paths specified" % prefix
|
||||
if len(write_path) > 0:
|
||||
s = "%s# Specified write permissions" % (prefix)
|
||||
for i in write_path:
|
||||
for r in self.gen_path_rule(i, 'rwk'):
|
||||
s += "\n%s%s" % (prefix, r)
|
||||
policy = re.sub(r' *%s' % search, s, policy)
|
||||
|
||||
if not verify_policy(policy):
|
||||
debug("\n" + policy)
|
||||
raise AppArmorException("Invalid policy")
|
||||
|
||||
return policy
|
||||
|
||||
def print_basefilenames(files):
|
||||
for i in files:
|
||||
print "%s" % (os.path.basename(i))
|
||||
|
||||
def print_files(files):
|
||||
for i in files:
|
||||
print open(i).read()
|
||||
|
||||
def parse_args(args=None):
|
||||
'''Parse arguments'''
|
||||
global DEBUGGING
|
||||
|
||||
parser = optparse.OptionParser()
|
||||
parser.add_option("-c", "--config-file",
|
||||
dest="conffile",
|
||||
help="Use alternate configuration file",
|
||||
metavar="FILE")
|
||||
parser.add_option("-d", "--debug",
|
||||
help="Show debugging output",
|
||||
action='store_true',
|
||||
default=False)
|
||||
parser.add_option("-t", "--template",
|
||||
dest="template",
|
||||
help="Use non-default policy template",
|
||||
metavar="TEMPLATE",
|
||||
default='default')
|
||||
parser.add_option("--list-templates",
|
||||
help="List available templates",
|
||||
action='store_true',
|
||||
default=False)
|
||||
parser.add_option("--templates-dir",
|
||||
dest="templates_dir",
|
||||
help="Use non-default templates directory",
|
||||
metavar="DIR")
|
||||
parser.add_option("--show-template",
|
||||
help="Show specified template",
|
||||
action='store_true',
|
||||
default=False)
|
||||
parser.add_option("-p", "--policy-groups",
|
||||
help="Comma-separated list of policy groups",
|
||||
metavar="POLICYGROUPS")
|
||||
parser.add_option("--list-policy-groups",
|
||||
help="List available policy groups",
|
||||
action='store_true',
|
||||
default=False)
|
||||
parser.add_option("--policy-groups-dir",
|
||||
dest="policy_groups_dir",
|
||||
help="Use non-default policy-groups directory",
|
||||
metavar="DIR")
|
||||
parser.add_option("--show-policy-group",
|
||||
help="Show specified policy groups",
|
||||
action='store_true',
|
||||
default=False)
|
||||
parser.add_option("-a", "--abstractions",
|
||||
dest="abstractions",
|
||||
help="Comma-separated list of abstractions",
|
||||
metavar="ABSTRACTIONS")
|
||||
parser.add_option("--read-path",
|
||||
dest="read_path",
|
||||
help="Path allowing owner reads",
|
||||
metavar="PATH",
|
||||
action="append")
|
||||
parser.add_option("--write-path",
|
||||
dest="write_path",
|
||||
help="Path allowing owner writes",
|
||||
metavar="PATH",
|
||||
action="append")
|
||||
parser.add_option("-n", "--name",
|
||||
dest="name",
|
||||
help="Name of policy",
|
||||
metavar="NAME")
|
||||
parser.add_option("--comment",
|
||||
dest="comment",
|
||||
help="Comment for policy",
|
||||
metavar="COMMENT")
|
||||
parser.add_option("--author",
|
||||
dest="author",
|
||||
help="Author of policy",
|
||||
metavar="COMMENT")
|
||||
parser.add_option("--copyright",
|
||||
dest="copyright",
|
||||
help="Copyright for policy",
|
||||
metavar="COMMENT")
|
||||
parser.add_option("--template-var",
|
||||
dest="template_var",
|
||||
help="Declare AppArmor variable",
|
||||
metavar="@{VARIABLE}=VALUE",
|
||||
action="append")
|
||||
|
||||
(my_opt, my_args) = parser.parse_args(args)
|
||||
if my_opt.debug:
|
||||
DEBUGGING = True
|
||||
return (my_opt, my_args)
|
||||
|
||||
def gen_policy_params(binary, opt):
|
||||
'''Generate parameters for gen_policy'''
|
||||
params = dict(binary=binary)
|
||||
if opt.name:
|
||||
params['name'] = opt.name
|
||||
else:
|
||||
params['name'] = os.path.basename(binary)
|
||||
if opt.template_var: # What about specified multiple times?
|
||||
params['template_var'] = opt.template_var
|
||||
if opt.abstractions:
|
||||
params['abstractions'] = opt.abstractions
|
||||
if opt.policy_groups:
|
||||
params['policy_groups'] = opt.policy_groups
|
||||
if opt.read_path:
|
||||
params['read_path'] = opt.read_path
|
||||
if opt.write_path:
|
||||
params['write_path'] = opt.write_path
|
||||
if opt.abstractions:
|
||||
params['abstractions'] = opt.abstractions
|
||||
if opt.comment:
|
||||
params['comment'] = opt.comment
|
||||
if opt.author:
|
||||
params['author'] = opt.author
|
||||
if opt.copyright:
|
||||
params['copyright'] = opt.copyright
|
||||
|
||||
return params
|
||||
|
44
utils/easyprof/README
Normal file
44
utils/easyprof/README
Normal file
@@ -0,0 +1,44 @@
|
||||
AppArmor Easy Profiler
|
||||
----------------------
|
||||
aa-easyprof is a standalone CLI application which can also be imported into
|
||||
developer SDKs. See test/test-aa-easyprof.py for an example of how to import
|
||||
this into your SDK.
|
||||
|
||||
|
||||
Templates
|
||||
---------
|
||||
Any number of templates can be used. The user may specify one on the command
|
||||
line or use a system-wide template from /usr/share/apparmor/easyprof/templates.
|
||||
|
||||
Currently the combination of the user-application and the opt-application and
|
||||
user-application policygroups should achieve a working policy for Ubuntu's
|
||||
Application Review Board:
|
||||
- http://developer.ubuntu.com/publish/my-apps-packages/
|
||||
|
||||
Eg:
|
||||
$ aa-easyprof --template=user-application \
|
||||
--template-var="@{APPNAME}=foo" \
|
||||
--policy-groups=opt-application,user-application \
|
||||
/opt/foo/bin/foo
|
||||
|
||||
Testing
|
||||
-------
|
||||
Unit tests:
|
||||
$ ./test/test-aa-easyprof.py
|
||||
|
||||
In source manual testing:
|
||||
$ ./aa-easyprof --templates-dir=./easyprof/templates \
|
||||
--policy-groups-dir=./easyprof/policygroups \
|
||||
... \
|
||||
/opt/foo/bin/foo
|
||||
|
||||
Post-install manual testing:
|
||||
$ make DESTDIR=/tmp/test PERLDIR=/tmp/test/usr/share/perl5/Immunix install
|
||||
$ cd /tmp/test
|
||||
$ PYTHONPATH=/tmp/test/usr/local/.../dist-packages ./usr/bin/aa-easyprof \
|
||||
--templates-dir=/tmp/test/usr/share/apparmor/easyprof/templates \
|
||||
--policy-groups-dir=/tmp/test/usr/share/apparmor/easyprof/policygroups \
|
||||
/opt/bin/foo
|
||||
|
||||
(you may also adjust /tmp/test/etc/apparmor/easyprof.conf to avoid specifying
|
||||
--templates-dir and --policy-groups-dir).
|
5
utils/easyprof/easyprof.conf
Normal file
5
utils/easyprof/easyprof.conf
Normal file
@@ -0,0 +1,5 @@
|
||||
# Location of system policygroups
|
||||
POLICYGROUPS_DIR="/usr/share/apparmor/easyprof/policygroups"
|
||||
|
||||
# Location of system templates
|
||||
TEMPLATES_DIR="/usr/share/apparmor/easyprof/templates"
|
2
utils/easyprof/policygroups/networking
Normal file
2
utils/easyprof/policygroups/networking
Normal file
@@ -0,0 +1,2 @@
|
||||
# Policygroup to allow networking
|
||||
#include <abstractions/nameservice>
|
3
utils/easyprof/policygroups/opt-application
Normal file
3
utils/easyprof/policygroups/opt-application
Normal file
@@ -0,0 +1,3 @@
|
||||
# Policy group for applications installed in /opt
|
||||
/opt/@{APPNAME}/ r,
|
||||
/opt/@{APPNAME}/** mrk,
|
8
utils/easyprof/policygroups/user-application
Normal file
8
utils/easyprof/policygroups/user-application
Normal file
@@ -0,0 +1,8 @@
|
||||
# Policy group allowing various writes to standard directories in @{HOMEDIRS}
|
||||
#include <abstractions/xdg-desktop>
|
||||
owner @{HOMEDIRS}/.cache/@{APPNAME}/ rw,
|
||||
owner @{HOMEDIRS}/.cache/@{APPNAME}/** rwkl,
|
||||
owner @{HOMEDIRS}/.config/@{APPNAME}/ rw,
|
||||
owner @{HOMEDIRS}/.config/@{APPNAME}/** rwkl,
|
||||
owner @{HOMEDIRS}/.local/share/@{APPNAME}/ rw,
|
||||
owner @{HOMEDIRS}/.local/share/@{APPNAME}/** rwkl,
|
26
utils/easyprof/templates/default
Normal file
26
utils/easyprof/templates/default
Normal file
@@ -0,0 +1,26 @@
|
||||
#
|
||||
# Example usage:
|
||||
# $ aa-easyprof --policy-groups=user-application /usr/bin/foo
|
||||
#
|
||||
###ENDUSAGE###
|
||||
# vim:syntax=apparmor
|
||||
# AppArmor policy for ###NAME###
|
||||
# ###AUTHOR###
|
||||
# ###COPYRIGHT###
|
||||
# ###COMMENT###
|
||||
|
||||
#include <tunables/global>
|
||||
|
||||
###VAR###
|
||||
|
||||
###BINARY### {
|
||||
#include <abstractions/base>
|
||||
|
||||
###ABSTRACTIONS###
|
||||
|
||||
###POLICYGROUPS###
|
||||
|
||||
###READS###
|
||||
|
||||
###WRITES###
|
||||
}
|
29
utils/easyprof/templates/user-application
Normal file
29
utils/easyprof/templates/user-application
Normal file
@@ -0,0 +1,29 @@
|
||||
#
|
||||
# Example usage for a program named 'foo' which is installed in /opt/foo
|
||||
# $ aa-easyprof --template=user-application \
|
||||
# --template-var="@{APPNAME}=foo" \
|
||||
# --policy-groups=opt-application,user-application \
|
||||
# /opt/foo/bin/foo
|
||||
#
|
||||
###ENDUSAGE###
|
||||
# vim:syntax=apparmor
|
||||
# AppArmor policy for ###NAME###
|
||||
# ###AUTHOR###
|
||||
# ###COPYRIGHT###
|
||||
# ###COMMENT###
|
||||
|
||||
#include <tunables/global>
|
||||
|
||||
###VAR###
|
||||
|
||||
###BINARY### {
|
||||
#include <abstractions/base>
|
||||
|
||||
###ABSTRACTIONS###
|
||||
|
||||
###POLICYGROUPS###
|
||||
|
||||
###READS###
|
||||
|
||||
###WRITES###
|
||||
}
|
79
utils/python-tools-setup.py
Normal file
79
utils/python-tools-setup.py
Normal file
@@ -0,0 +1,79 @@
|
||||
# ----------------------------------------------------------------------
|
||||
# Copyright (c) 2012 Canonical Ltd.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of version 2 of the GNU General Public
|
||||
# License published by the Free Software Foundation.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program; if not, contact Canonical, Ltd.
|
||||
# ----------------------------------------------------------------------
|
||||
#
|
||||
# Usage:
|
||||
# $ python ./python-tools-setup.py install --root=... --version=...
|
||||
#
|
||||
# Note: --version=... must be the last argument to this script
|
||||
#
|
||||
|
||||
from distutils.command.install import install as _install
|
||||
from distutils.core import setup
|
||||
import os
|
||||
import shutil
|
||||
import sys
|
||||
|
||||
class Install(_install, object):
|
||||
'''Override distutils to install the files where we want them.'''
|
||||
def run(self):
|
||||
# Now byte-compile everything
|
||||
super(Install, self).run()
|
||||
|
||||
prefix = self.prefix
|
||||
if self.root != None:
|
||||
prefix = self.root
|
||||
|
||||
# Install scripts, configuration files and data
|
||||
scripts = ['/usr/bin/aa-easyprof']
|
||||
self.mkpath(prefix + os.path.dirname(scripts[0]))
|
||||
for s in scripts:
|
||||
self.copy_file(os.path.basename(s), prefix + s)
|
||||
|
||||
configs = ['easyprof/easyprof.conf']
|
||||
self.mkpath(prefix + "/etc/apparmor")
|
||||
for c in configs:
|
||||
self.copy_file(c, os.path.join(prefix + "/etc/apparmor", os.path.basename(c)))
|
||||
|
||||
data = ['easyprof/templates', 'easyprof/policygroups']
|
||||
self.mkpath(prefix + "/usr/share/apparmor/easyprof")
|
||||
for d in data:
|
||||
self.copy_tree(d, os.path.join(prefix + "/usr/share/apparmor/easyprof", os.path.basename(d)))
|
||||
|
||||
|
||||
if os.path.exists('staging'):
|
||||
shutil.rmtree('staging')
|
||||
shutil.copytree('apparmor', 'staging')
|
||||
|
||||
# Support the --version=... since this will be part of a Makefile
|
||||
version = "unknown-version"
|
||||
if "--version=" in sys.argv[-1]:
|
||||
version=sys.argv[-1].split('=')[1]
|
||||
sys.argv = sys.argv[0:-1]
|
||||
|
||||
setup (name='apparmor',
|
||||
version=version,
|
||||
description='Python libraries for AppArmor utilities',
|
||||
long_description='Python libraries for AppArmor utilities',
|
||||
author='AppArmor Developers',
|
||||
author_email='apparmor@lists.ubuntu.com',
|
||||
url='https://launchpad.net/apparmor',
|
||||
license='GPL-2',
|
||||
cmdclass={'install': Install},
|
||||
package_dir={'apparmor': 'staging'},
|
||||
py_modules=['apparmor.easyprof']
|
||||
)
|
||||
|
||||
shutil.rmtree('staging')
|
5
utils/test/easyprof.conf
Normal file
5
utils/test/easyprof.conf
Normal file
@@ -0,0 +1,5 @@
|
||||
# Location of system policygroups
|
||||
POLICYGROUPS_DIR="./policygroups"
|
||||
|
||||
# Location of system templates
|
||||
TEMPLATES_DIR="./templates"
|
882
utils/test/test-aa-easyprof.py
Executable file
882
utils/test/test-aa-easyprof.py
Executable file
@@ -0,0 +1,882 @@
|
||||
#! /usr/bin/env python
|
||||
# ------------------------------------------------------------------
|
||||
#
|
||||
# Copyright (C) 2011-2012 Canonical Ltd.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or
|
||||
# modify it under the terms of version 2 of the GNU General Public
|
||||
# License published by the Free Software Foundation.
|
||||
#
|
||||
# ------------------------------------------------------------------
|
||||
|
||||
import glob
|
||||
import os
|
||||
import shutil
|
||||
import sys
|
||||
import tempfile
|
||||
import unittest
|
||||
|
||||
topdir = None
|
||||
debugging = False
|
||||
|
||||
def recursive_rm(dirPath, contents_only=False):
|
||||
'''recursively remove directory'''
|
||||
names = os.listdir(dirPath)
|
||||
for name in names:
|
||||
path = os.path.join(dirPath, name)
|
||||
if os.path.islink(path) or not os.path.isdir(path):
|
||||
os.unlink(path)
|
||||
else:
|
||||
recursive_rm(path)
|
||||
if contents_only == False:
|
||||
os.rmdir(dirPath)
|
||||
|
||||
#
|
||||
# Our test class
|
||||
#
|
||||
class T(unittest.TestCase):
|
||||
def setUp(self):
|
||||
'''Setup for tests'''
|
||||
global topdir
|
||||
|
||||
self.tmpdir = tempfile.mkdtemp(prefix='test-aa-easyprof')
|
||||
|
||||
# Copy everything into place
|
||||
for d in ['easyprof/policygroups', 'easyprof/templates']:
|
||||
shutil.copytree(os.path.join(topdir, d), os.path.join(self.tmpdir, os.path.basename(d)))
|
||||
|
||||
# Create a test template
|
||||
self.test_template = "test-template"
|
||||
contents = '''# vim:syntax=apparmor
|
||||
# %s
|
||||
# AppArmor policy for ###NAME###
|
||||
# ###AUTHOR###
|
||||
# ###COPYRIGHT###
|
||||
# ###COMMENT###
|
||||
|
||||
#include <tunables/global>
|
||||
|
||||
###VAR###
|
||||
|
||||
###BINARY### {
|
||||
#include <abstractions/base>
|
||||
|
||||
###ABSTRACTIONS###
|
||||
|
||||
###POLICYGROUPS###
|
||||
|
||||
###READS###
|
||||
|
||||
###WRITES###
|
||||
}
|
||||
|
||||
''' % (self.test_template)
|
||||
open(os.path.join(self.tmpdir, 'templates', self.test_template), 'w').write(contents)
|
||||
|
||||
# Create a test policygroup
|
||||
self.test_policygroup = "test-policygroup"
|
||||
contents = '''
|
||||
# %s
|
||||
#include <abstractions/gnome>
|
||||
#include <abstractions/nameservice>
|
||||
''' % (self.test_policygroup)
|
||||
open(os.path.join(self.tmpdir, 'policygroups', self.test_policygroup), 'w').write(contents)
|
||||
|
||||
# setup our conffile
|
||||
self.conffile = os.path.join(self.tmpdir, 'easyprof.conf')
|
||||
contents = '''
|
||||
POLICYGROUPS_DIR="%s/policygroups"
|
||||
TEMPLATES_DIR="%s/templates"
|
||||
''' % (self.tmpdir, self.tmpdir)
|
||||
open(self.conffile, 'w').write(contents)
|
||||
|
||||
self.binary = "/opt/bin/foo"
|
||||
self.full_args = ['-c', self.conffile, self.binary]
|
||||
|
||||
if debugging:
|
||||
self.full_args.append('-d')
|
||||
|
||||
(self.options, self.args) = easyprof.parse_args(self.full_args + [self.binary])
|
||||
|
||||
def tearDown(self):
|
||||
'''Teardown for tests'''
|
||||
if os.path.exists(self.tmpdir):
|
||||
recursive_rm(self.tmpdir)
|
||||
|
||||
#
|
||||
# config file tests
|
||||
#
|
||||
def test_configuration_file_p_invalid(self):
|
||||
'''Test config parsing (invalid POLICYGROUPS_DIR)'''
|
||||
contents = '''
|
||||
POLICYGROUPS_DIR=
|
||||
TEMPLATES_DIR="%s/templates"
|
||||
''' % (self.tmpdir)
|
||||
|
||||
open(self.conffile, 'w').write(contents)
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
raise Exception ("File should have been invalid")
|
||||
|
||||
def test_configuration_file_p_empty(self):
|
||||
'''Test config parsing (empty POLICYGROUPS_DIR)'''
|
||||
contents = '''
|
||||
POLICYGROUPS_DIR="%s"
|
||||
TEMPLATES_DIR="%s/templates"
|
||||
''' % ('', self.tmpdir)
|
||||
|
||||
open(self.conffile, 'w').write(contents)
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
raise Exception ("File should have been invalid")
|
||||
|
||||
def test_configuration_file_p_nonexistent(self):
|
||||
'''Test config parsing (nonexistent POLICYGROUPS_DIR)'''
|
||||
contents = '''
|
||||
POLICYGROUPS_DIR="%s/policygroups"
|
||||
TEMPLATES_DIR="%s/templates"
|
||||
''' % ('/nonexistent', self.tmpdir)
|
||||
|
||||
open(self.conffile, 'w').write(contents)
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
raise Exception ("File should have been invalid")
|
||||
|
||||
def test_policygroups_dir_relative(self):
|
||||
'''Test --policy-groups-dir (relative DIR)'''
|
||||
os.chdir(self.tmpdir)
|
||||
rel = os.path.join(self.tmpdir, 'relative')
|
||||
os.mkdir(rel)
|
||||
shutil.copy(os.path.join(self.tmpdir, 'policygroups', self.test_policygroup), os.path.join(rel, self.test_policygroup))
|
||||
|
||||
args = self.full_args
|
||||
args += ['--policy-groups-dir', './relative', '--show-policy-group', '--policy-groups=%s' % self.test_policygroup]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
|
||||
# no fallback
|
||||
self.assertTrue(easyp.dirs['policygroups'] == rel, "Not using specified --policy-groups-dir")
|
||||
self.assertFalse(easyp.get_policy_groups() == None, "Could not find policy-groups")
|
||||
|
||||
def test_policygroups_dir_nonexistent(self):
|
||||
'''Test --policy-groups-dir (nonexistent DIR)'''
|
||||
os.chdir(self.tmpdir)
|
||||
rel = os.path.join(self.tmpdir, 'nonexistent')
|
||||
|
||||
args = self.full_args
|
||||
args += ['--policy-groups-dir', rel, '--show-policy-group', '--policy-groups=%s' % self.test_policygroup]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
|
||||
# test if using fallback
|
||||
self.assertFalse(easyp.dirs['policygroups'] == rel, "Using nonexistent --policy-groups-dir")
|
||||
|
||||
# test fallback
|
||||
self.assertTrue(easyp.get_policy_groups() != None, "Found policy-groups when shouldn't have")
|
||||
|
||||
def test_policygroups_dir_valid(self):
|
||||
'''Test --policy-groups-dir (valid DIR)'''
|
||||
os.chdir(self.tmpdir)
|
||||
valid = os.path.join(self.tmpdir, 'valid')
|
||||
os.mkdir(valid)
|
||||
shutil.copy(os.path.join(self.tmpdir, 'policygroups', self.test_policygroup), os.path.join(valid, self.test_policygroup))
|
||||
|
||||
args = self.full_args
|
||||
args += ['--policy-groups-dir', valid, '--show-policy-group', '--policy-groups=%s' % self.test_policygroup]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
|
||||
# no fallback
|
||||
self.assertTrue(easyp.dirs['policygroups'] == valid, "Not using specified --policy-groups-dir")
|
||||
self.assertFalse(easyp.get_policy_groups() == None, "Could not find policy-groups")
|
||||
|
||||
def test_configuration_file_t_invalid(self):
|
||||
'''Test config parsing (invalid TEMPLATES_DIR)'''
|
||||
contents = '''
|
||||
TEMPLATES_DIR=
|
||||
POLICYGROUPS_DIR="%s/templates"
|
||||
''' % (self.tmpdir)
|
||||
|
||||
open(self.conffile, 'w').write(contents)
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
raise Exception ("File should have been invalid")
|
||||
|
||||
def test_configuration_file_t_empty(self):
|
||||
'''Test config parsing (empty TEMPLATES_DIR)'''
|
||||
contents = '''
|
||||
TEMPLATES_DIR="%s"
|
||||
POLICYGROUPS_DIR="%s/templates"
|
||||
''' % ('', self.tmpdir)
|
||||
|
||||
open(self.conffile, 'w').write(contents)
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
raise Exception ("File should have been invalid")
|
||||
|
||||
def test_configuration_file_t_nonexistent(self):
|
||||
'''Test config parsing (nonexistent TEMPLATES_DIR)'''
|
||||
contents = '''
|
||||
TEMPLATES_DIR="%s/policygroups"
|
||||
POLICYGROUPS_DIR="%s/templates"
|
||||
''' % ('/nonexistent', self.tmpdir)
|
||||
|
||||
open(self.conffile, 'w').write(contents)
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
|
||||
raise Exception ("File should have been invalid")
|
||||
|
||||
def test_templates_dir_relative(self):
|
||||
'''Test --templates-dir (relative DIR)'''
|
||||
os.chdir(self.tmpdir)
|
||||
rel = os.path.join(self.tmpdir, 'relative')
|
||||
os.mkdir(rel)
|
||||
shutil.copy(os.path.join(self.tmpdir, 'templates', self.test_template), os.path.join(rel, self.test_template))
|
||||
|
||||
args = self.full_args
|
||||
args += ['--templates-dir', './relative', '--show-template', '--template=%s' % self.test_template]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
|
||||
# no fallback
|
||||
self.assertTrue(easyp.dirs['templates'] == rel, "Not using specified --template-dir")
|
||||
self.assertFalse(easyp.get_templates() == None, "Could not find templates")
|
||||
|
||||
def test_templates_dir_nonexistent(self):
|
||||
'''Test --templates-dir (nonexistent DIR)'''
|
||||
os.chdir(self.tmpdir)
|
||||
rel = os.path.join(self.tmpdir, 'nonexistent')
|
||||
|
||||
args = self.full_args
|
||||
args += ['--templates-dir', rel, '--show-template', '--template=%s' % self.test_template]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
|
||||
# test if using fallback
|
||||
self.assertFalse(easyp.dirs['templates'] == rel, "Using nonexistent --template-dir")
|
||||
|
||||
# test fallback
|
||||
self.assertTrue(easyp.get_templates() != None, "Found templates when shouldn't have")
|
||||
|
||||
def test_templates_dir_valid(self):
|
||||
'''Test --templates-dir (valid DIR)'''
|
||||
os.chdir(self.tmpdir)
|
||||
valid = os.path.join(self.tmpdir, 'valid')
|
||||
os.mkdir(valid)
|
||||
shutil.copy(os.path.join(self.tmpdir, 'templates', self.test_template), os.path.join(valid, self.test_template))
|
||||
|
||||
args = self.full_args
|
||||
args += ['--templates-dir', valid, '--show-template', '--template=%s' % self.test_template]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
|
||||
# no fallback
|
||||
self.assertTrue(easyp.dirs['templates'] == valid, "Not using specified --template-dir")
|
||||
self.assertFalse(easyp.get_templates() == None, "Could not find templates")
|
||||
|
||||
#
|
||||
# Binary file tests
|
||||
#
|
||||
def test_binary(self):
|
||||
'''Test binary'''
|
||||
easyprof.AppArmorEasyProfile('/bin/ls', self.options)
|
||||
|
||||
def test_binary_nonexistent(self):
|
||||
'''Test binary (nonexistent)'''
|
||||
easyprof.AppArmorEasyProfile(os.path.join(self.tmpdir, 'nonexistent'), self.options)
|
||||
|
||||
def test_binary_relative(self):
|
||||
'''Test binary (relative)'''
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile('./foo', self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("Binary should have been invalid")
|
||||
|
||||
def test_binary_symlink(self):
|
||||
'''Test binary (symlink)'''
|
||||
exe = os.path.join(self.tmpdir, 'exe')
|
||||
open(exe, 'wa').close()
|
||||
symlink = exe + ".lnk"
|
||||
os.symlink(exe, symlink)
|
||||
|
||||
try:
|
||||
easyprof.AppArmorEasyProfile(symlink, self.options)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("Binary should have been invalid")
|
||||
|
||||
#
|
||||
# Templates tests
|
||||
#
|
||||
def test_templates_list(self):
|
||||
'''Test templates (list)'''
|
||||
args = self.full_args
|
||||
args.append('--list-templates')
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
|
||||
easyp = easyprof.AppArmorEasyProfile(None, self.options)
|
||||
for i in easyp.get_templates():
|
||||
self.assertTrue(os.path.exists(i), "Could not find '%s'" % i)
|
||||
|
||||
def test_templates_show(self):
|
||||
'''Test templates (show)'''
|
||||
files = []
|
||||
for f in glob.glob("%s/templates/*" % self.tmpdir):
|
||||
files.append(f)
|
||||
|
||||
for f in files:
|
||||
args = self.full_args
|
||||
args += ['--show-template', '--template', f]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(None, self.options)
|
||||
|
||||
path = os.path.join(easyp.dirs['templates'], f)
|
||||
self.assertTrue(os.path.exists(path), "Could not find '%s'" % path)
|
||||
open(path).read()
|
||||
|
||||
#
|
||||
# Policygroups tests
|
||||
#
|
||||
def test_policygroups_list(self):
|
||||
'''Test policygroups (list)'''
|
||||
args = self.full_args
|
||||
args.append('--list-policy-groups')
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
|
||||
easyp = easyprof.AppArmorEasyProfile(None, self.options)
|
||||
for i in easyp.get_templates():
|
||||
self.assertTrue(os.path.exists(i), "Could not find '%s'" % i)
|
||||
|
||||
def test_policygroups_show(self):
|
||||
'''Test policygroups (show)'''
|
||||
files = []
|
||||
for f in glob.glob("%s/policygroups/*" % self.tmpdir):
|
||||
files.append(f)
|
||||
|
||||
for f in files:
|
||||
args = self.full_args
|
||||
args += ['--show-template', '--template', f]
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(None, self.options)
|
||||
|
||||
path = os.path.join(easyp.dirs['policygroups'], f)
|
||||
self.assertTrue(os.path.exists(path), "Could not find '%s'" % path)
|
||||
open(path).read()
|
||||
|
||||
#
|
||||
# Test genpolicy
|
||||
#
|
||||
def _gen_policy(self, name=None, template=None, extra_args=[]):
|
||||
'''Generate a policy'''
|
||||
# Build up our args
|
||||
args = self.full_args
|
||||
|
||||
if template == None:
|
||||
args.append('--template=%s' % self.test_template)
|
||||
else:
|
||||
args.append('--template=%s' % template)
|
||||
|
||||
if name != None:
|
||||
args.append('--name=%s' % name)
|
||||
|
||||
if len(extra_args) > 0:
|
||||
args += extra_args
|
||||
|
||||
args.append(self.binary)
|
||||
|
||||
# Now parse our args
|
||||
(self.options, self.args) = easyprof.parse_args(args)
|
||||
easyp = easyprof.AppArmorEasyProfile(self.binary, self.options)
|
||||
params = easyprof.gen_policy_params(self.binary, self.options)
|
||||
p = easyp.gen_policy(**params)
|
||||
|
||||
# We always need to check for these
|
||||
search_terms = [self.binary]
|
||||
if name != None:
|
||||
search_terms.append(name)
|
||||
|
||||
if template == None:
|
||||
search_terms.append(self.test_template)
|
||||
|
||||
for s in search_terms:
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
|
||||
# ###NAME### should be replaced with self.binary or 'name'. Check for that
|
||||
inv_s = '###NAME###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
if debugging:
|
||||
print p
|
||||
|
||||
return p
|
||||
|
||||
def test_genpolicy_templates_abspath(self):
|
||||
'''Test genpolicy (abspath to template)'''
|
||||
# create a new template
|
||||
template = os.path.join(self.tmpdir, "test-abspath-template")
|
||||
shutil.copy(os.path.join(self.tmpdir, 'templates', self.test_template), template)
|
||||
contents = open(template).read()
|
||||
test_string = "#teststring"
|
||||
open(template, 'w').write(contents + "\n%s\n" % test_string)
|
||||
|
||||
p = self._gen_policy(template=template)
|
||||
|
||||
for s in [self.test_template, test_string]:
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
|
||||
def test_genpolicy_templates_system(self):
|
||||
'''Test genpolicy (system template)'''
|
||||
self._gen_policy()
|
||||
|
||||
def test_genpolicy_templates_nonexistent(self):
|
||||
'''Test genpolicy (nonexistent template)'''
|
||||
try:
|
||||
self._gen_policy(template=os.path.join(self.tmpdir, "/nonexistent"))
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("template should be invalid")
|
||||
|
||||
def test_genpolicy_name(self):
|
||||
'''Test genpolicy (name)'''
|
||||
self._gen_policy(name='test-foo')
|
||||
|
||||
def test_genpolicy_comment(self):
|
||||
'''Test genpolicy (comment)'''
|
||||
s = "test comment"
|
||||
p = self._gen_policy(extra_args=['--comment=%s' % s])
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###COMMENT###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_author(self):
|
||||
'''Test genpolicy (author)'''
|
||||
s = "Archibald Poindexter"
|
||||
p = self._gen_policy(extra_args=['--author=%s' % s])
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###AUTHOR###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_copyright(self):
|
||||
'''Test genpolicy (copyright)'''
|
||||
s = "2112/01/01"
|
||||
p = self._gen_policy(extra_args=['--copyright=%s' % s])
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###COPYRIGHT###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_abstractions(self):
|
||||
'''Test genpolicy (single abstraction)'''
|
||||
s = "nameservice"
|
||||
p = self._gen_policy(extra_args=['--abstractions=%s' % s])
|
||||
search = "#include <abstractions/%s>" % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###ABSTRACTIONS###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_abstractions_multiple(self):
|
||||
'''Test genpolicy (multiple abstractions)'''
|
||||
abstractions = "authentication,X,user-tmp"
|
||||
p = self._gen_policy(extra_args=['--abstractions=%s' % abstractions])
|
||||
for s in abstractions.split(','):
|
||||
search = "#include <abstractions/%s>" % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###ABSTRACTIONS###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_policygroups(self):
|
||||
'''Test genpolicy (single policygroup)'''
|
||||
groups = self.test_policygroup
|
||||
p = self._gen_policy(extra_args=['--policy-groups=%s' % groups])
|
||||
|
||||
for s in ['#include <abstractions/nameservice>', '#include <abstractions/gnome>']:
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###POLICYGROUPS###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_policygroups_multiple(self):
|
||||
'''Test genpolicy (multiple policygroups)'''
|
||||
test_policygroup2 = "test-policygroup2"
|
||||
contents = '''
|
||||
# %s
|
||||
#include <abstractions/kde>
|
||||
#include <abstractions/openssl>
|
||||
''' % (self.test_policygroup)
|
||||
open(os.path.join(self.tmpdir, 'policygroups', test_policygroup2), 'w').write(contents)
|
||||
|
||||
groups = "%s,%s" % (self.test_policygroup, test_policygroup2)
|
||||
p = self._gen_policy(extra_args=['--policy-groups=%s' % groups])
|
||||
|
||||
for s in ['#include <abstractions/nameservice>',
|
||||
'#include <abstractions/gnome>',
|
||||
'#include <abstractions/kde>',
|
||||
'#include <abstractions/openssl>']:
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###POLICYGROUPS###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_policygroups_nonexistent(self):
|
||||
'''Test genpolicy (nonexistent policygroup)'''
|
||||
try:
|
||||
self._gen_policy(extra_args=['--policy-groups=nonexistent'])
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("policygroup should be invalid")
|
||||
|
||||
def test_genpolicy_readpath_file(self):
|
||||
'''Test genpolicy (read-path file)'''
|
||||
s = "/opt/test-foo"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search = "%s r," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_home_file(self):
|
||||
'''Test genpolicy (read-path file in /home)'''
|
||||
s = "/home/*/test-foo"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search = "owner %s r," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_homevar_file(self):
|
||||
'''Test genpolicy (read-path file in @{HOME})'''
|
||||
s = "@{HOME}/test-foo"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search = "owner %s r," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_homedirs_file(self):
|
||||
'''Test genpolicy (read-path file in @{HOMEDIRS})'''
|
||||
s = "@{HOMEDIRS}/test-foo"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search = "owner %s r," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_dir(self):
|
||||
'''Test genpolicy (read-path directory/)'''
|
||||
s = "/opt/test-foo-dir/"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search_terms = ["%s r," % s, "%s** r," % s]
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_dir_glob(self):
|
||||
'''Test genpolicy (read-path directory/*)'''
|
||||
s = "/opt/test-foo-dir/*"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search_terms = ["%s r," % os.path.dirname(s), "%s r," % s]
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_dir_glob_all(self):
|
||||
'''Test genpolicy (read-path directory/**)'''
|
||||
s = "/opt/test-foo-dir/**"
|
||||
p = self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
search_terms = ["%s r," % os.path.dirname(s), "%s r," % s]
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_multiple(self):
|
||||
'''Test genpolicy (read-path multiple)'''
|
||||
paths = ["/opt/test-foo",
|
||||
"/home/*/test-foo",
|
||||
"@{HOME}/test-foo",
|
||||
"@{HOMEDIRS}/test-foo",
|
||||
"/opt/test-foo-dir/",
|
||||
"/opt/test-foo-dir/*",
|
||||
"/opt/test-foo-dir/**"]
|
||||
args = []
|
||||
search_terms = []
|
||||
for s in paths:
|
||||
args.append('--read-path=%s' % s)
|
||||
# This mimics easyprof.gen_path_rule()
|
||||
owner = ""
|
||||
if s.startswith('/home/') or s.startswith("@{HOME"):
|
||||
owner = "owner "
|
||||
if s.endswith('/'):
|
||||
search_terms.append("%s r," % (s))
|
||||
search_terms.append("%s%s** r," % (owner, s))
|
||||
elif s.endswith('/**') or s.endswith('/*'):
|
||||
search_terms.append("%s r," % (os.path.dirname(s)))
|
||||
search_terms.append("%s%s r," % (owner, s))
|
||||
else:
|
||||
search_terms.append("%s%s r," % (owner, s))
|
||||
|
||||
p = self._gen_policy(extra_args=args)
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_readpath_bad(self):
|
||||
'''Test genpolicy (read-path bad)'''
|
||||
s = "bar"
|
||||
try:
|
||||
self._gen_policy(extra_args=['--read-path=%s' % s])
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("read-path should be invalid")
|
||||
|
||||
def test_genpolicy_writepath_file(self):
|
||||
'''Test genpolicy (write-path file)'''
|
||||
s = "/opt/test-foo"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search = "%s rwk," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_home_file(self):
|
||||
'''Test genpolicy (write-path file in /home)'''
|
||||
s = "/home/*/test-foo"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search = "owner %s rwk," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_homevar_file(self):
|
||||
'''Test genpolicy (write-path file in @{HOME})'''
|
||||
s = "@{HOME}/test-foo"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search = "owner %s rwk," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_homedirs_file(self):
|
||||
'''Test genpolicy (write-path file in @{HOMEDIRS})'''
|
||||
s = "@{HOMEDIRS}/test-foo"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search = "owner %s rwk," % s
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_dir(self):
|
||||
'''Test genpolicy (write-path directory/)'''
|
||||
s = "/opt/test-foo-dir/"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search_terms = ["%s rwk," % s, "%s** rwk," % s]
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_dir_glob(self):
|
||||
'''Test genpolicy (write-path directory/*)'''
|
||||
s = "/opt/test-foo-dir/*"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search_terms = ["%s rwk," % os.path.dirname(s), "%s rwk," % s]
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_dir_glob_all(self):
|
||||
'''Test genpolicy (write-path directory/**)'''
|
||||
s = "/opt/test-foo-dir/**"
|
||||
p = self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
search_terms = ["%s rwk," % os.path.dirname(s), "%s rwk," % s]
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_multiple(self):
|
||||
'''Test genpolicy (write-path multiple)'''
|
||||
paths = ["/opt/test-foo",
|
||||
"/home/*/test-foo",
|
||||
"@{HOME}/test-foo",
|
||||
"@{HOMEDIRS}/test-foo",
|
||||
"/opt/test-foo-dir/",
|
||||
"/opt/test-foo-dir/*",
|
||||
"/opt/test-foo-dir/**"]
|
||||
args = []
|
||||
search_terms = []
|
||||
for s in paths:
|
||||
args.append('--write-path=%s' % s)
|
||||
# This mimics easyprof.gen_path_rule()
|
||||
owner = ""
|
||||
if s.startswith('/home/') or s.startswith("@{HOME"):
|
||||
owner = "owner "
|
||||
if s.endswith('/'):
|
||||
search_terms.append("%s rwk," % (s))
|
||||
search_terms.append("%s%s** rwk," % (owner, s))
|
||||
elif s.endswith('/**') or s.endswith('/*'):
|
||||
search_terms.append("%s rwk," % (os.path.dirname(s)))
|
||||
search_terms.append("%s%s rwk," % (owner, s))
|
||||
else:
|
||||
search_terms.append("%s%s rwk," % (owner, s))
|
||||
|
||||
p = self._gen_policy(extra_args=args)
|
||||
for search in search_terms:
|
||||
self.assertTrue(search in p, "Could not find '%s' in:\n%s" % (search, p))
|
||||
inv_s = '###READPATH###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_writepath_bad(self):
|
||||
'''Test genpolicy (write-path bad)'''
|
||||
s = "bar"
|
||||
try:
|
||||
self._gen_policy(extra_args=['--write-path=%s' % s])
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("write-path should be invalid")
|
||||
|
||||
def test_genpolicy_templatevar(self):
|
||||
'''Test genpolicy (template-var single)'''
|
||||
s = "@{FOO}=bar"
|
||||
p = self._gen_policy(extra_args=['--template-var=%s' % s])
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###TEMPLATEVAR###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_templatevar_multiple(self):
|
||||
'''Test genpolicy (template-var multiple)'''
|
||||
variables = ["@{FOO}=bar", "@{BAR}=baz"]
|
||||
args = []
|
||||
for s in variables:
|
||||
args.append('--template-var=%s' % s)
|
||||
|
||||
p = self._gen_policy(extra_args=args)
|
||||
for s in variables:
|
||||
self.assertTrue(s in p, "Could not find '%s' in:\n%s" % (s, p))
|
||||
inv_s = '###TEMPLATEVAR###'
|
||||
self.assertFalse(inv_s in p, "Found '%s' in :\n%s" % (inv_s, p))
|
||||
|
||||
def test_genpolicy_templatevar_bad(self):
|
||||
'''Test genpolicy (template-var bad)'''
|
||||
s = "{FOO}=bar"
|
||||
try:
|
||||
self._gen_policy(extra_args=['--template-var=%s' % s])
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("template-var should be invalid")
|
||||
|
||||
def test_genpolicy_invalid_template_policy(self):
|
||||
'''Test genpolicy (invalid template policy)'''
|
||||
# create a new template
|
||||
template = os.path.join(self.tmpdir, "test-invalid-template")
|
||||
shutil.copy(os.path.join(self.tmpdir, 'templates', self.test_template), template)
|
||||
contents = open(template).read()
|
||||
bad_pol = ""
|
||||
bad_string = "bzzzt"
|
||||
for line in contents.splitlines():
|
||||
if '}' in line:
|
||||
bad_pol += bad_string
|
||||
else:
|
||||
bad_pol += line
|
||||
bad_pol += "\n"
|
||||
open(template, 'w').write(bad_pol)
|
||||
try:
|
||||
self._gen_policy(template=template)
|
||||
except easyprof.AppArmorException:
|
||||
return
|
||||
except Exception:
|
||||
raise
|
||||
raise Exception ("policy should be invalid")
|
||||
|
||||
|
||||
#
|
||||
# End test class
|
||||
#
|
||||
|
||||
#
|
||||
# Main
|
||||
#
|
||||
if __name__ == '__main__':
|
||||
def cleanup(files):
|
||||
for f in files:
|
||||
if os.path.exists(f):
|
||||
os.unlink(f)
|
||||
|
||||
absfn = os.path.abspath(sys.argv[0])
|
||||
topdir = os.path.dirname(os.path.dirname(absfn))
|
||||
|
||||
if len(sys.argv) > 1 and (sys.argv[1] == '-d' or sys.argv[1] == '--debug'):
|
||||
debugging = True
|
||||
|
||||
created = []
|
||||
|
||||
# Create the necessary files to import aa-easyprof
|
||||
init = os.path.join(os.path.dirname(absfn), '__init__.py')
|
||||
if not os.path.exists(init):
|
||||
open(init, 'wa').close()
|
||||
created.append(init)
|
||||
|
||||
symlink = os.path.join(os.path.dirname(absfn), 'easyprof.py')
|
||||
if not os.path.exists(symlink):
|
||||
os.symlink(os.path.join(topdir, 'apparmor', 'easyprof.py'), symlink)
|
||||
created.append(symlink)
|
||||
created.append(symlink + 'c')
|
||||
|
||||
# Now that we have everything we need, import aa-easyprof
|
||||
import easyprof
|
||||
|
||||
# run the tests
|
||||
suite = unittest.TestSuite()
|
||||
suite.addTest(unittest.TestLoader().loadTestsFromTestCase(T))
|
||||
rc = unittest.TextTestRunner(verbosity=2).run(suite)
|
||||
|
||||
cleanup(created)
|
||||
|
||||
if not rc.wasSuccessful():
|
||||
sys.exit(1)
|
Reference in New Issue
Block a user