netlink: decode NETLINK_SELINUX protocol
* 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.
This commit is contained in:
parent
836f4a1592
commit
37dfe8c769
@ -183,6 +183,7 @@ strace_SOURCES = \
|
||||
net.c \
|
||||
netlink.c \
|
||||
netlink.h \
|
||||
netlink_selinux.c \
|
||||
netlink_sock_diag.c \
|
||||
nlattr.c \
|
||||
nlattr.h \
|
||||
|
1
defs.h
1
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 *);
|
||||
|
@ -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
|
||||
};
|
||||
|
||||
|
69
netlink_selinux.c
Normal file
69
netlink_selinux.c
Normal file
@ -0,0 +1,69 @@
|
||||
/*
|
||||
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@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;
|
||||
}
|
Loading…
Reference in New Issue
Block a user