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Since it is relatively simple.
* rtnl_link.c (decode_ifla_bridge_id): Provide struct definition for
the id variable.
[!HAVE_STRUCT_IFLA_BRIDGE_ID] (decode_ifla_bridge_id): Decode struct
ifla_bridge_id.
It reduces code duplication somewhat and allows avoiding errors like
the one fixed in the previous commit.
* rtnl_link.c (decode_ifla_protinfo, decode_nla_linkinfo_data_bridge,
decode_nla_linkinfo_data_tun, decode_ifla_linkinfo, decode_ifla_port,
decode_ifla_vf_ports, decode_ifla_xdp,
DECL_NETLINK_ROUTE_DECODER(decode_ifinfomsg)): Use ARRSZ_PAIR in
decode_nlattr call arguments.
* rtnl_link.c (decode_nla_linkinfo_data_bridge): Change
rtnl_ifla_info_data_bridge_attrs to ifla_info_data_bridge_nla_decoders
in ARRAY_SIZE call.
(decode_nla_linkinfo_data_tun): Change rtnl_ifla_info_data_tun_attrs
to ifla_info_data_tun_nla_decoders in ARRAY_SIZE call.
Fixes: v4.22-328-g1e6d5a8 "rtnl_link: implement IFLA_INFO_DATA for bridges"
Fixes: v4.22-329-g4eab3a4 "rtnl_link: implement IFLA_INFO_DATA for tun devices"
* xlat/rtnl_ifla_info_data_tun_attrs.in: New file.
* xlat/tun_device_types.in: Likewise.
* rtnl_link.c: Include xlat/rtnl_ifla_info_data_tun_attrs.h and
xlat/tun_device_types.h.
(decode_nla_tun_type, decode_nla_linkinfo_data_tun): New functions.
(ifla_info_data_tun_nla_decoders): New decoder dispatcher table.
(decode_nla_linkinfo_data): Use decode_nla_linkinfo_data_tun if kind
is
"tun".
* xlat/rtnl_ifla_info_data_bridge_attrs.in: New file.
* rtnl_link.c: Include xlat/rtnl_ifla_info_data_bridge_attrs.h.
(ifla_info_data_bridge_nla_decoders): New decoder dispatcher table.
(decode_nla_linkinfo_data_bridge, decode_nla_linkinfo_data): New
functions.
(ifla_linkinfo_nla_decoders) <IFLA_INFO_DATA>: Use
decode_nla_linkinfo_data as a decoder.
So far, only CAN provides it.
* rtnl_link.c (decode_nla_linkinfo_xstats_can,
decode_nla_linkinfo_xstats): New function.
(ifla_linkinfo_nla_decoders) <IFLA_INFO_XSTATS>: Use
decode_nla_linkinfo_xstats as a decoder.
Dispatch for IFLA_INFO_* attributes should be performed based on the
string provided in a IFLA_INFO_KIND attribute.
* nlattr.h (struct ifla_linkinfo_ctx): New type definition.
* rtnl_link.c (decode_nla_linkinfo_kind): New function.
(ifla_linkinfo_nla_decoders) <IFLA_INFO_KIND>: Use
decode_nla_linkinfo_kind as decoder.
(decode_ifla_linkinfo): Add struct ifla_linkinfo_ctx context, pass it to
the decode_nlattr call as opaque data.
* rtnl_link.c (DECL_NETLINK_ROUTE_DECODER(decode_ifinfomsg)): Use
PRINT_FIELD_XVAL_SORTED_SIZED instead of PRINT_FIELD_XVAL for
arp_hardware_types.
* sock.c (print_ifreq): Likewise.
* print_mac.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* defs.h (sprint_mac_addr): New declaration.
(print_mac_addr): New function, a thin wrapper around sprint_mac_addr.
* print_fields.h (PRINT_FIELD_MAC, PRINT_FIELD_MAC_SZ): New macros.
* rtnl_link.c (decode_ifla_bridge_id): Use PRINT_FIELD_MAC for bridge
address printing.
* sock.c (print_ifreq) <case SIOCGIFHWADDR>: Use print_mac_addr for
ifr_hwaddr printing.
* sockaddr.c (print_sockaddr_data_bt): Use print_mac_addr for
{sco,rc,l2}_bdaddr field printing.
Co-Authored-by: Dmitry V. Levin <ldv@altlinux.org>
* rtnl_link.c (decode_ifla_event): New function.
(ifinfomsg_nla_decoders) <[IFLA_EVENT]>: Use it.
* xlat/rtnl_ifla_events.in: New file.
* NEWS: Mention it.
Enhance runtime detection of struct rtnl_link_stats.rx_nohandler
and struct rtnl_link_stats64.rx_nohandler.
* rtnl_link.c (decode_rtnl_link_stats): Do not accept structure length
greater than min_size but less than sizeof(struct rtnl_link_stats).
(decode_rtnl_link_stats64): Likewise, so not accept structure length
greater than min_size but less than sizeof(struct rtnl_link_stats64).
* configure.ac (AC_CHECK_TYPES): Check for ifla_bridge_id
and rtnl_link_stats64 structures in <linux/if_link.h>.
* rtnl_link.c: Include "xlat/rtnl_ifla_brport_attrs.h".
(decode_ifla_bridge_id, decode_ifla_protinfo): New functions.
(ifla_brport_nla_decoders): New array.
(ifinfomsg_nla_decoders) <IFLA_PROTINFO>: Use decode_ifla_protinfo.
* xlat/rtnl_ifla_brport_attrs.in: New file.
* configure.ac (AC_CHECK_HEADERS): Add linux/if_link.h.
(AC_CHECK_TYPES): Check for struct rtnl_link_stats64
in <linux/if_link.h>.
(AC_CHECK_MEMBERS): Check for rx_nohandler field
in struct rtnl_link_stats/rtnl_link_stats64.
* rtnl_link.c: Include <linux/if_link.h>.
(decode_rtnl_link_stats, decode_rtnl_link_ifmap,
decode_rtnl_link_stats64): New functions.
(ifinfomsg_nla_decoders): New array.
(decode_ifinfomsg): Use it.
<sys/socket.h> has to be included before <linux/netlink.h> because
the latter used to be incomplete in older kernel headers.
As a local wrapper file called netlink.h was introduced earlier
to workaround this and related portability issues, include it before
<linux/rtnetlink.h> that in turn includes <linux/netlink.h>.
This fixes build on systems with older kernel headers.
* rtnl_link.c: Include "netlink.h" before <linux/rtnetlink.h>.
* netlink_route.h: New file.
* rtnl_link.c: Likewise.
* Makefile.am (strace_SOURCES): Add them.
* defs.h (arp_hardware_types, iffflags): New xlat prototypes.
* netlink_route.c: Include "netlink_route.h"
and <linux/rtnetlink.h>.
(netlink_route_decoder_t): New typedef.
(route_decoders): New array.
(decode_netlink_route): Use it.
Co-authored-by: Fabien Siron <fabien.siron@epita.fr>
