netlink_route: implement RTM_NEWSTATS and RTM_GETSTATS message decoding

* src/xlat/ifstats_af_spec_mpls_attrs.in: New file.
* src/xlat/ifstats_attr_flags.in: Likewise.
* src/xlat/ifstats_attrs.in: Likewise.
* src/xlat/ifstats_offload_attrs.in: Likewise.
* src/xlat/ifstats_xstats_bond_3ad_attrs.in: Likewise.
* src/xlat/ifstats_xstats_bond_attrs.in: Likewise.
* src/xlat/ifstats_xstats_bridge_attrs.in: Likewise.
* src/xlat/ifstats_xstats_bridge_mcast_indices.in: Likewise.
* src/xlat/ifstats_xstats_type_attrs.in: Likewise.
* src/xlat/nl_bridge_vlan_flags.in: Likewise.
* bundled/linux/include/uapi/linux/if_bonding.h: New file, copied from
headers_install'ed Linux kernel v5.15.
* bundled/linux/include/uapi/linux/mpls.h: Likewise.
* bundled/Makefile.am (EXTRA_DIST): Add them.
* src/rtnl_stats.c: New file.
* src/Makefile.am (strace_SOURCES): Add it.
* src/netlink_route.c (route_decoders) <[RTM_NEWSTATS - RTM_BASE],
[RTM_GETSTATS - RTM_BASE]>: New decoder, call decode_ifstatsmsg.
* src/netlink_route.h (decode_ifstatsmsg): New declaration.
* src/nlattr.h (DECL_NLA(rtnl_link_stats64)): Likewise.
* src/rtnl_link.c (decode_nla_rtnl_link_stats64): Rename from
decode_rtnl_link_stats64.
(ifinfomsg_nla_decoders) <[IFLA_STATS64]>: Use
decode_nla_rtnl_link_stats64.
* src/print_fields.h (PRINT_FIELD_ARRAY_INDEXED): New macro.
* tests/nlattr_ifstats.c: New file.
* tests/nlattr_ifstats-Xabbrev.c: Likewise.
* tests/nlattr_ifstats-Xraw.c: Likewise.
* tests/nlattr_ifstats-Xverbose.c: Likewise.
* tests/.gitignore: Add nlattr_ifstats, nlattr_ifstats-Xabbrev,
nlattr_ifstats-Xraw, and nlattr_ifstats-Xverbose.
* tests/pure_executables.list: Likewise.
* tests/gen_tests.in (nlattr_ifstats, nlattr_ifstats-Xabbrev,
nlattr_ifstats-Xraw, nlattr_ifstats-Xverbose): New tests.
* tests/netlink_route.c: Update/add checks for the RTM_*STATS message
types.
* NEWS: Mention it.

3 files changed, 234 insertions, 0 deletions

diff --git a/bundled/Makefile.am b/bundled/Makefile.am
index b3da1b23a..388e05dc5 100644
--- a/bundled/Makefile.am
+++ b/bundled/Makefile.am
@@ -43,6 +43,7 @@ EXTRA_DIST = \
 	linux/include/uapi/linux/hiddev.h \
 	linux/include/uapi/linux/if_addr.h \
 	linux/include/uapi/linux/if_addrlabel.h \
+	linux/include/uapi/linux/if_bonding.h \
 	linux/include/uapi/linux/if_bridge.h \
 	linux/include/uapi/linux/if_link.h \
 	linux/include/uapi/linux/in6.h \
@@ -60,6 +61,7 @@ EXTRA_DIST = \
 	linux/include/uapi/linux/memfd.h \
 	linux/include/uapi/linux/mmtimer.h \
 	linux/include/uapi/linux/mount.h \
+	linux/include/uapi/linux/mpls.h \
 	linux/include/uapi/linux/mqueue.h \
 	linux/include/uapi/linux/neighbour.h \
 	linux/include/uapi/linux/netconf.h \
diff --git a/bundled/linux/include/uapi/linux/if_bonding.h b/bundled/linux/include/uapi/linux/if_bonding.h
new file mode 100644
index 000000000..d174914a8
--- /dev/null
+++ b/bundled/linux/include/uapi/linux/if_bonding.h
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
+/*
+ * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
+ *
+ *
+ * Portions are (c) Copyright 1995 Simon "Guru Aleph-Null" Janes
+ * NCM: Network and Communications Management, Inc.
+ *
+ * BUT, I'm the one who modified it for ethernet, so:
+ * (c) Copyright 1999, Thomas Davis, tadavis@lbl.gov
+ *
+ *	This software may be used and distributed according to the terms
+ *	of the GNU Public License, incorporated herein by reference.
+ *
+ * 2003/03/18 - Amir Noam <amir.noam at intel dot com>
+ *	- Added support for getting slave's speed and duplex via ethtool.
+ *	  Needed for 802.3ad and other future modes.
+ *
+ * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
+ *		Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Enable support of modes that need to use the unique mac address of
+ *	  each slave.
+ *
+ * 2003/03/18 - Tsippy Mendelson <tsippy.mendelson at intel dot com> and
+ *		Amir Noam <amir.noam at intel dot com>
+ *	- Moved driver's private data types to bonding.h
+ *
+ * 2003/03/18 - Amir Noam <amir.noam at intel dot com>,
+ *		Tsippy Mendelson <tsippy.mendelson at intel dot com> and
+ *		Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Added support for IEEE 802.3ad Dynamic link aggregation mode.
+ *
+ * 2003/05/01 - Amir Noam <amir.noam at intel dot com>
+ *	- Added ABI version control to restore compatibility between
+ *	  new/old ifenslave and new/old bonding.
+ *
+ * 2003/12/01 - Shmulik Hen <shmulik.hen at intel dot com>
+ *	- Code cleanup and style changes
+ *
+ * 2005/05/05 - Jason Gabler <jygabler at lbl dot gov>
+ *      - added definitions for various XOR hashing policies
+ */
+
+#ifndef _LINUX_IF_BONDING_H
+#define _LINUX_IF_BONDING_H
+
+#include <linux/if.h>
+#include <linux/types.h>
+#include <linux/if_ether.h>
+
+/* userland - kernel ABI version (2003/05/08) */
+#define BOND_ABI_VERSION 2
+
+/*
+ * We can remove these ioctl definitions in 2.5.  People should use the
+ * SIOC*** versions of them instead
+ */
+#define BOND_ENSLAVE_OLD		(SIOCDEVPRIVATE)
+#define BOND_RELEASE_OLD		(SIOCDEVPRIVATE + 1)
+#define BOND_SETHWADDR_OLD		(SIOCDEVPRIVATE + 2)
+#define BOND_SLAVE_INFO_QUERY_OLD	(SIOCDEVPRIVATE + 11)
+#define BOND_INFO_QUERY_OLD		(SIOCDEVPRIVATE + 12)
+#define BOND_CHANGE_ACTIVE_OLD		(SIOCDEVPRIVATE + 13)
+
+#define BOND_CHECK_MII_STATUS	(SIOCGMIIPHY)
+
+#define BOND_MODE_ROUNDROBIN	0
+#define BOND_MODE_ACTIVEBACKUP	1
+#define BOND_MODE_XOR		2
+#define BOND_MODE_BROADCAST	3
+#define BOND_MODE_8023AD        4
+#define BOND_MODE_TLB           5
+#define BOND_MODE_ALB		6 /* TLB + RLB (receive load balancing) */
+
+/* each slave's link has 4 states */
+#define BOND_LINK_UP    0           /* link is up and running */
+#define BOND_LINK_FAIL  1           /* link has just gone down */
+#define BOND_LINK_DOWN  2           /* link has been down for too long time */
+#define BOND_LINK_BACK  3           /* link is going back */
+
+/* each slave has several states */
+#define BOND_STATE_ACTIVE       0   /* link is active */
+#define BOND_STATE_BACKUP       1   /* link is backup */
+
+#define BOND_DEFAULT_MAX_BONDS  1   /* Default maximum number of devices to support */
+
+#define BOND_DEFAULT_TX_QUEUES 16   /* Default number of tx queues per device */
+
+#define BOND_DEFAULT_RESEND_IGMP	1 /* Default number of IGMP membership reports */
+
+/* hashing types */
+#define BOND_XMIT_POLICY_LAYER2		0 /* layer 2 (MAC only), default */
+#define BOND_XMIT_POLICY_LAYER34	1 /* layer 3+4 (IP ^ (TCP || UDP)) */
+#define BOND_XMIT_POLICY_LAYER23	2 /* layer 2+3 (IP ^ MAC) */
+#define BOND_XMIT_POLICY_ENCAP23	3 /* encapsulated layer 2+3 */
+#define BOND_XMIT_POLICY_ENCAP34	4 /* encapsulated layer 3+4 */
+#define BOND_XMIT_POLICY_VLAN_SRCMAC	5 /* vlan + source MAC */
+
+/* 802.3ad port state definitions (43.4.2.2 in the 802.3ad standard) */
+#define LACP_STATE_LACP_ACTIVITY   0x1
+#define LACP_STATE_LACP_TIMEOUT    0x2
+#define LACP_STATE_AGGREGATION     0x4
+#define LACP_STATE_SYNCHRONIZATION 0x8
+#define LACP_STATE_COLLECTING      0x10
+#define LACP_STATE_DISTRIBUTING    0x20
+#define LACP_STATE_DEFAULTED       0x40
+#define LACP_STATE_EXPIRED         0x80
+
+typedef struct ifbond {
+	__s32 bond_mode;
+	__s32 num_slaves;
+	__s32 miimon;
+} ifbond;
+
+typedef struct ifslave {
+	__s32 slave_id; /* Used as an IN param to the BOND_SLAVE_INFO_QUERY ioctl */
+	char slave_name[IFNAMSIZ];
+	__s8 link;
+	__s8 state;
+	__u32  link_failure_count;
+} ifslave;
+
+struct ad_info {
+	__u16 aggregator_id;
+	__u16 ports;
+	__u16 actor_key;
+	__u16 partner_key;
+	__u8 partner_system[ETH_ALEN];
+};
+
+/* Embedded inside LINK_XSTATS_TYPE_BOND */
+enum {
+	BOND_XSTATS_UNSPEC,
+	BOND_XSTATS_3AD,
+	__BOND_XSTATS_MAX
+};
+#define BOND_XSTATS_MAX (__BOND_XSTATS_MAX - 1)
+
+/* Embedded inside BOND_XSTATS_3AD */
+enum {
+	BOND_3AD_STAT_LACPDU_RX,
+	BOND_3AD_STAT_LACPDU_TX,
+	BOND_3AD_STAT_LACPDU_UNKNOWN_RX,
+	BOND_3AD_STAT_LACPDU_ILLEGAL_RX,
+	BOND_3AD_STAT_MARKER_RX,
+	BOND_3AD_STAT_MARKER_TX,
+	BOND_3AD_STAT_MARKER_RESP_RX,
+	BOND_3AD_STAT_MARKER_RESP_TX,
+	BOND_3AD_STAT_MARKER_UNKNOWN_RX,
+	BOND_3AD_STAT_PAD,
+	__BOND_3AD_STAT_MAX
+};
+#define BOND_3AD_STAT_MAX (__BOND_3AD_STAT_MAX - 1)
+
+#endif /* _LINUX_IF_BONDING_H */
diff --git a/bundled/linux/include/uapi/linux/mpls.h b/bundled/linux/include/uapi/linux/mpls.h
new file mode 100644
index 000000000..9effbf99d
--- /dev/null
+++ b/bundled/linux/include/uapi/linux/mpls.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _MPLS_H
+#define _MPLS_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+/* Reference: RFC 5462, RFC 3032
+ *
+ *  0                   1                   2                   3
+ *  0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ * |                Label                  | TC  |S|       TTL     |
+ * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ *
+ *	Label:  Label Value, 20 bits
+ *	TC:     Traffic Class field, 3 bits
+ *	S:      Bottom of Stack, 1 bit
+ *	TTL:    Time to Live, 8 bits
+ */
+
+struct mpls_label {
+	__be32 entry;
+};
+
+#define MPLS_LS_LABEL_MASK      0xFFFFF000
+#define MPLS_LS_LABEL_SHIFT     12
+#define MPLS_LS_TC_MASK         0x00000E00
+#define MPLS_LS_TC_SHIFT        9
+#define MPLS_LS_S_MASK          0x00000100
+#define MPLS_LS_S_SHIFT         8
+#define MPLS_LS_TTL_MASK        0x000000FF
+#define MPLS_LS_TTL_SHIFT       0
+
+/* Reserved labels */
+#define MPLS_LABEL_IPV4NULL		0 /* RFC3032 */
+#define MPLS_LABEL_RTALERT		1 /* RFC3032 */
+#define MPLS_LABEL_IPV6NULL		2 /* RFC3032 */
+#define MPLS_LABEL_IMPLNULL		3 /* RFC3032 */
+#define MPLS_LABEL_ENTROPY		7 /* RFC6790 */
+#define MPLS_LABEL_GAL			13 /* RFC5586 */
+#define MPLS_LABEL_OAMALERT		14 /* RFC3429 */
+#define MPLS_LABEL_EXTENSION		15 /* RFC7274 */
+
+#define MPLS_LABEL_FIRST_UNRESERVED	16 /* RFC3032 */
+
+/* These are embedded into IFLA_STATS_AF_SPEC:
+ * [IFLA_STATS_AF_SPEC]
+ * -> [AF_MPLS]
+ *    -> [MPLS_STATS_xxx]
+ *
+ * Attributes:
+ * [MPLS_STATS_LINK] = {
+ *     struct mpls_link_stats
+ * }
+ */
+enum {
+	MPLS_STATS_UNSPEC, /* also used as 64bit pad attribute */
+	MPLS_STATS_LINK,
+	__MPLS_STATS_MAX,
+};
+
+#define MPLS_STATS_MAX (__MPLS_STATS_MAX - 1)
+
+struct mpls_link_stats {
+	__u64	rx_packets;		/* total packets received	*/
+	__u64	tx_packets;		/* total packets transmitted	*/
+	__u64	rx_bytes;		/* total bytes received		*/
+	__u64	tx_bytes;		/* total bytes transmitted	*/
+	__u64	rx_errors;		/* bad packets received		*/
+	__u64	tx_errors;		/* packet transmit problems	*/
+	__u64	rx_dropped;		/* packet dropped on receive	*/
+	__u64	tx_dropped;		/* packet dropped on transmit	*/
+	__u64	rx_noroute;		/* no route for packet dest	*/
+};
+
+#endif /* _MPLS_H */