strace/netlink.h

/*
 * 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.
 */

#ifndef STRACE_NETLINK_H
#define STRACE_NETLINK_H

#include <sys/socket.h>
#include <linux/netlink.h>

#ifndef NETLINK_SOCK_DIAG
# define NETLINK_SOCK_DIAG 4
#endif

#ifndef NLM_F_NONREC
# define NLM_F_NONREC	0x100
#endif
#ifndef NLM_F_CAPPED
# define NLM_F_CAPPED	0x100
#endif

#undef NLMSG_HDRLEN
#define NLMSG_HDRLEN ((unsigned int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))

#ifndef NLMSG_MIN_TYPE
# define NLMSG_MIN_TYPE		0x10
#endif

#ifndef NLA_ALIGN
# define NLA_ALIGN(len) (((len) + 3) & ~3)
#endif

#undef NLA_HDRLEN
#define NLA_HDRLEN ((unsigned int) NLA_ALIGN(sizeof(struct nlattr)))

#ifndef NLA_TYPE_MASK
# define NLA_F_NESTED		(1 << 15)
# define NLA_F_NET_BYTEORDER	(1 << 14)
# define NLA_TYPE_MASK		~(NLA_F_NESTED | NLA_F_NET_BYTEORDER)
#endif

#endif /* !STRACE_NETLINK_H */
netlink: introduce netlink.h * netlink.h: New file. * Makefile.am (strace_SOURCES): Add it. * netlink_sock_diag.c: Include "netlink.h", remove <sys/socket.h> and <linux/netlink.h>. * netlink.c: Likewise. (NLMSG_HDRLEN): Move to netlink.h. * tests/netlink_protocol.c: Replace <linux/netlink.h> with "netlink.h". * tests/netlink_sock_diag.c: Likewise. 2017-06-22 00:24:22 +08:00			`/*`
			`* 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.`
			`*/`

			`#ifndef STRACE_NETLINK_H`
			`#define STRACE_NETLINK_H`

			`#include <sys/socket.h>`
			`#include <linux/netlink.h>`

netlink: provide a fallback definition of NETLINK_SOCK_DIAG Add a fallback definition of NETLINK_SOCK_DIAG to netlink.h instead of adding these fallback definitions to every file. * netlink.h: Provide a fallback definition of NETLINK_SOCK_DIAG. * socketutils.c: Include "netlink.h" instead of <linux/netlink.h>, remove fallback definition of NETLINK_SOCK_DIAG. 2017-06-24 22:25:28 +00:00			`#ifndef NETLINK_SOCK_DIAG`
			`# define NETLINK_SOCK_DIAG 4`
			`#endif`

netlink: decode netlink message delete flags * netlink.c: Include "xlat/netlink_delete_flags.h". (decode_nlmsg_flags_crypto, decode_nlmsg_flags_route, decode_nlmsg_flags_xfrm): Decode delete flags. * netlink.h (NLM_F_NONREC): New macro. * xlat/netlink_delete_flags.in: New file. * tests/netlink_crypto.c (test_nlmsg_flags): Check this. * tests/netlink_route.c (test_nlmsg_flags): Likewise. * tests/netlink_xfrm.c (test_nlmsg_flags): Likewise. 2017-09-21 09:25:38 +08:00			`#ifndef NLM_F_NONREC`
			`# define NLM_F_NONREC 0x100`
			`#endif`
netlink: adjust decode_nlmsgerr for extended ACK reporting Extended ACK reporting introduced by linux kernel commit v4.11-rc5-1382-g2d4bc93. * netlink.h (NLM_F_CAPPED): New macro. * netlink.c (decode_payload): Pass nlmsghdr->nlmsg_flags & NLM_F_CAPPED to decode_nlmsgerr. (decode_nlmsgerr): Adjust the length pass to decode_nlmsghdr_with_payload. 2017-07-19 17:17:36 +08:00			`#ifndef NLM_F_CAPPED`
			`# define NLM_F_CAPPED 0x100`
			`#endif`

netlink: introduce netlink.h * netlink.h: New file. * Makefile.am (strace_SOURCES): Add it. * netlink_sock_diag.c: Include "netlink.h", remove <sys/socket.h> and <linux/netlink.h>. * netlink.c: Likewise. (NLMSG_HDRLEN): Move to netlink.h. * tests/netlink_protocol.c: Replace <linux/netlink.h> with "netlink.h". * tests/netlink_sock_diag.c: Likewise. 2017-06-22 00:24:22 +08:00			`#undef NLMSG_HDRLEN`
			`#define NLMSG_HDRLEN ((unsigned int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))`

			`#ifndef NLMSG_MIN_TYPE`
			`# define NLMSG_MIN_TYPE 0x10`
			`#endif`

			`#ifndef NLA_ALIGN`
			`# define NLA_ALIGN(len) (((len) + 3) & ~3)`
			`#endif`

			`#undef NLA_HDRLEN`
			`#define NLA_HDRLEN ((unsigned int) NLA_ALIGN(sizeof(struct nlattr)))`

			`#ifndef NLA_TYPE_MASK`
			`# define NLA_F_NESTED (1 << 15)`
			`# define NLA_F_NET_BYTEORDER (1 << 14)`
			`# define NLA_TYPE_MASK ~(NLA_F_NESTED \| NLA_F_NET_BYTEORDER)`
			`#endif`

			`#endif /* !STRACE_NETLINK_H */`