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rtnl_link: implement IFLA_INFO_DATA for tun devices

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* 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".
This commit is contained in:
Eugene Syromyatnikov 2018-05-18 18:08:25 +02:00 committed by Dmitry V. Levin
parent 1e6d5a84b8
commit 4eab3a43fd
3 changed files with 62 additions and 0 deletions
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48
rtnl_link.c
View File

@ -51,12 +51,14 @@
#include "xlat/rtnl_ifla_events.h"
#include "xlat/rtnl_ifla_info_attrs.h"
#include "xlat/rtnl_ifla_info_data_bridge_attrs.h"
#include "xlat/rtnl_ifla_info_data_tun_attrs.h"
#include "xlat/rtnl_ifla_port_attrs.h"
#include "xlat/rtnl_ifla_vf_port_attrs.h"
#include "xlat/rtnl_ifla_xdp_attrs.h"
#include "xlat/rtnl_link_attrs.h"
#include "xlat/snmp_icmp6_stats.h"
#include "xlat/snmp_ip_stats.h"
#include "xlat/tun_device_types.h"
#include "xlat/xdp_flags.h"
static bool
@ -344,6 +346,50 @@ decode_nla_linkinfo_data_bridge(struct tcb *const tcp,
return true;
}
static bool
decode_nla_tun_type(struct tcb *const tcp,
const kernel_ulong_t addr,
const unsigned int len,
const void *const opaque_data)
{
const struct decode_nla_xlat_opts opts = {
.xlat = tun_device_types,
.xlat_size = ARRAY_SIZE(tun_device_types),
.xt = XT_INDEXED,
.dflt = "IFF_???",
.size = 1,
};
return decode_nla_xval(tcp, addr, len, &opts);
}
static const nla_decoder_t ifla_info_data_tun_nla_decoders[] = {
[IFLA_TUN_UNSPEC] = NULL,
[IFLA_TUN_OWNER] = decode_nla_uid,
[IFLA_TUN_GROUP] = decode_nla_gid,
[IFLA_TUN_TYPE] = decode_nla_tun_type,
[IFLA_TUN_PI] = decode_nla_u8,
[IFLA_TUN_VNET_HDR] = decode_nla_u8,
[IFLA_TUN_PERSIST] = decode_nla_u8,
[IFLA_TUN_MULTI_QUEUE] = decode_nla_u8,
[IFLA_TUN_NUM_QUEUES] = decode_nla_u32,
[IFLA_TUN_NUM_DISABLED_QUEUES] = decode_nla_u32,
};
bool
decode_nla_linkinfo_data_tun(struct tcb *const tcp,
const kernel_ulong_t addr,
const unsigned int len,
const void *const opaque_data)
{
decode_nlattr(tcp, addr, len, rtnl_ifla_info_data_tun_attrs,
"IFLA_TUN_???", ifla_info_data_tun_nla_decoders,
ARRAY_SIZE(rtnl_ifla_info_data_tun_attrs),
opaque_data);
return true;
}
bool
decode_nla_linkinfo_data(struct tcb *const tcp,
const kernel_ulong_t addr,
@ -355,6 +401,8 @@ decode_nla_linkinfo_data(struct tcb *const tcp,
if (!strcmp(ctx->kind, "bridge"))
func = decode_nla_linkinfo_data_bridge;
else if (!strcmp(ctx->kind, "tun"))
func = decode_nla_linkinfo_data_tun;
if (func)
return func(tcp, addr, len, opaque_data);

11
xlat/rtnl_ifla_info_data_tun_attrs.in Normal file
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@ -0,0 +1,11 @@
#value_indexed
IFLA_TUN_UNSPEC 0
IFLA_TUN_OWNER 1
IFLA_TUN_GROUP 2
IFLA_TUN_TYPE 3
IFLA_TUN_PI 4
IFLA_TUN_VNET_HDR 5
IFLA_TUN_PERSIST 6
IFLA_TUN_MULTI_QUEUE 7
IFLA_TUN_NUM_QUEUES 8
IFLA_TUN_NUM_DISABLED_QUEUES 9

3
xlat/tun_device_types.in Normal file
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@ -0,0 +1,3 @@
#value_indexed
IFF_TUN 1
IFF_TAP 2