* netlink_selinux.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (decode_netlink_selinux): New prototype.
* netlink.c (netlink_decoders): Add NETLINK_SELINUX.
---
Makefile.am | 1 +
defs.h | 1 +
netlink.c | 1 +
netlink_selinux.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 72 insertions(+)
create mode 100644 netlink_selinux.c
diff --git a/Makefile.am b/Makefile.am
index 05c2475..b98554f 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -182,6 +182,7 @@ strace_SOURCES = \
net.c \
netlink.c \
netlink.h \
+ netlink_selinux.c \
netlink_sock_diag.c \
nlattr.c \
nlattr.h \
diff --git a/defs.h b/defs.h
index 5b378a9..bc9a3e0 100644
--- a/defs.h
+++ b/defs.h
@@ -709,6 +709,7 @@ typedef bool (*netlink_decoder_t)(struct tcb *, const
struct nlmsghdr *,
extern bool \
decode_netlink_ ## name(struct tcb *, const struct nlmsghdr *, \
kernel_ulong_t addr, kernel_ulong_t len)
+DECL_NETLINK(selinux);
DECL_NETLINK(sock_diag);
extern int tv_nz(const struct timeval *);
diff --git a/netlink.c b/netlink.c
index 0ae9a46..e054ae3 100644
--- a/netlink.c
+++ b/netlink.c
@@ -327,6 +327,7 @@ decode_nlmsgerr(struct tcb *const tcp,
}
static const netlink_decoder_t netlink_decoders[] = {
+ [NETLINK_SELINUX] = decode_netlink_selinux,
[NETLINK_SOCK_DIAG] = decode_netlink_sock_diag
};
diff --git a/netlink_selinux.c b/netlink_selinux.c
new file mode 100644
index 0000000..43885ff
--- /dev/null
+++ b/netlink_selinux.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2017 JingPiao Chen <chenjingp...@gmail.com>
+ * Copyright (c) 2017 The strace developers.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "defs.h"
+#include "netlink.h"
+#include "print_fields.h"
+
+#include <linux/selinux_netlink.h>
+
+bool
+decode_netlink_selinux(struct tcb *const tcp,
+ const struct nlmsghdr *const nlmsghdr,
+ const kernel_ulong_t addr,
+ const kernel_ulong_t len)
+{
+ switch (nlmsghdr->nlmsg_type) {
+ case SELNL_MSG_SETENFORCE: {
+ struct selnl_msg_setenforce msg;
+
+ if (len < sizeof(msg))
+ printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
+ else if (!umove_or_printaddr(tcp, addr, &msg)) {
+ PRINT_FIELD_D("{", msg, val);
+ tprints("}");
+ }
+ break;
+ }
+ case SELNL_MSG_POLICYLOAD: {
+ struct selnl_msg_policyload msg;
+
+ if (len < sizeof(msg))
+ printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
+ else if (!umove_or_printaddr(tcp, addr, &msg)) {
+ PRINT_FIELD_U("{", msg, seqno);
+ tprints("}");
+ }
+ break;
+ }
+ default:
+ return false;
+ }
+
+ return true;
+}
--
2.7.4
------------------------------------------------------------------------------
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