1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
// SPDX-License-Identifier: GPL-2.0-only
#include "netlink.h"
#include "common.h"
#include "bitset.h"
struct linkmodes_req_info {
struct ethnl_req_info base;
};
struct linkmodes_reply_data {
struct ethnl_reply_data base;
struct ethtool_link_ksettings ksettings;
struct ethtool_link_settings *lsettings;
bool peer_empty;
};
#define LINKMODES_REPDATA(__reply_base) \
container_of(__reply_base, struct linkmodes_reply_data, base)
static const struct nla_policy
linkmodes_get_policy[ETHTOOL_A_LINKMODES_MAX + 1] = {
[ETHTOOL_A_LINKMODES_UNSPEC] = { .type = NLA_REJECT },
[ETHTOOL_A_LINKMODES_HEADER] = { .type = NLA_NESTED },
[ETHTOOL_A_LINKMODES_AUTONEG] = { .type = NLA_REJECT },
[ETHTOOL_A_LINKMODES_OURS] = { .type = NLA_REJECT },
[ETHTOOL_A_LINKMODES_PEER] = { .type = NLA_REJECT },
[ETHTOOL_A_LINKMODES_SPEED] = { .type = NLA_REJECT },
[ETHTOOL_A_LINKMODES_DUPLEX] = { .type = NLA_REJECT },
};
static int linkmodes_prepare_data(const struct ethnl_req_info *req_base,
struct ethnl_reply_data *reply_base,
struct genl_info *info)
{
struct linkmodes_reply_data *data = LINKMODES_REPDATA(reply_base);
struct net_device *dev = reply_base->dev;
int ret;
data->lsettings = &data->ksettings.base;
ret = ethnl_ops_begin(dev);
if (ret < 0)
return ret;
ret = __ethtool_get_link_ksettings(dev, &data->ksettings);
if (ret < 0 && info) {
GENL_SET_ERR_MSG(info, "failed to retrieve link settings");
goto out;
}
data->peer_empty =
bitmap_empty(data->ksettings.link_modes.lp_advertising,
__ETHTOOL_LINK_MODE_MASK_NBITS);
out:
ethnl_ops_complete(dev);
return ret;
}
static int linkmodes_reply_size(const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct linkmodes_reply_data *data = LINKMODES_REPDATA(reply_base);
const struct ethtool_link_ksettings *ksettings = &data->ksettings;
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
int len, ret;
len = nla_total_size(sizeof(u8)) /* LINKMODES_AUTONEG */
+ nla_total_size(sizeof(u32)) /* LINKMODES_SPEED */
+ nla_total_size(sizeof(u8)) /* LINKMODES_DUPLEX */
+ 0;
ret = ethnl_bitset_size(ksettings->link_modes.advertising,
ksettings->link_modes.supported,
__ETHTOOL_LINK_MODE_MASK_NBITS,
link_mode_names, compact);
if (ret < 0)
return ret;
len += ret;
if (!data->peer_empty) {
ret = ethnl_bitset_size(ksettings->link_modes.lp_advertising,
NULL, __ETHTOOL_LINK_MODE_MASK_NBITS,
link_mode_names, compact);
if (ret < 0)
return ret;
len += ret;
}
return len;
}
static int linkmodes_fill_reply(struct sk_buff *skb,
const struct ethnl_req_info *req_base,
const struct ethnl_reply_data *reply_base)
{
const struct linkmodes_reply_data *data = LINKMODES_REPDATA(reply_base);
const struct ethtool_link_ksettings *ksettings = &data->ksettings;
const struct ethtool_link_settings *lsettings = &ksettings->base;
bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
int ret;
if (nla_put_u8(skb, ETHTOOL_A_LINKMODES_AUTONEG, lsettings->autoneg))
return -EMSGSIZE;
ret = ethnl_put_bitset(skb, ETHTOOL_A_LINKMODES_OURS,
ksettings->link_modes.advertising,
ksettings->link_modes.supported,
__ETHTOOL_LINK_MODE_MASK_NBITS, link_mode_names,
compact);
if (ret < 0)
return -EMSGSIZE;
if (!data->peer_empty) {
ret = ethnl_put_bitset(skb, ETHTOOL_A_LINKMODES_PEER,
ksettings->link_modes.lp_advertising,
NULL, __ETHTOOL_LINK_MODE_MASK_NBITS,
link_mode_names, compact);
if (ret < 0)
return -EMSGSIZE;
}
if (nla_put_u32(skb, ETHTOOL_A_LINKMODES_SPEED, lsettings->speed) ||
nla_put_u8(skb, ETHTOOL_A_LINKMODES_DUPLEX, lsettings->duplex))
return -EMSGSIZE;
return 0;
}
const struct ethnl_request_ops ethnl_linkmodes_request_ops = {
.request_cmd = ETHTOOL_MSG_LINKMODES_GET,
.reply_cmd = ETHTOOL_MSG_LINKMODES_GET_REPLY,
.hdr_attr = ETHTOOL_A_LINKMODES_HEADER,
.max_attr = ETHTOOL_A_LINKMODES_MAX,
.req_info_size = sizeof(struct linkmodes_req_info),
.reply_data_size = sizeof(struct linkmodes_reply_data),
.request_policy = linkmodes_get_policy,
.prepare_data = linkmodes_prepare_data,
.reply_size = linkmodes_reply_size,
.fill_reply = linkmodes_fill_reply,
};
|
