static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,
void *data)
{
struct inet6_data *i6 = data;
struct nlattr *tb[IFLA_INET6_MAX+1];
int err;
err = nla_parse_nested(tb, IFLA_INET6_MAX, attr, inet6_policy);
if (err < 0)
return err;
if (tb[IFLA_INET6_FLAGS])
i6->i6_flags = nla_get_u32(tb[IFLA_INET6_FLAGS]);
if (tb[IFLA_INET6_CACHEINFO])
nla_memcpy(&i6->i6_cacheinfo, tb[IFLA_INET6_CACHEINFO],
sizeof(i6->i6_cacheinfo));
if (tb[IFLA_INET6_CONF])
nla_memcpy(&i6->i6_conf, tb[IFLA_INET6_CONF],
sizeof(i6->i6_conf));
/*
* Due to 32bit data alignment, these addresses must be copied to an
* aligned location prior to access.
*/
if (tb[IFLA_INET6_STATS]) {
unsigned char *cnt = nla_data(tb[IFLA_INET6_STATS]);
uint64_t stat;
int i;
for (i = 1; i < __IPSTATS_MIB_MAX; i++) {
memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));
rtnl_link_set_stat(link, RTNL_LINK_IP6_INPKTS + i - 1,
stat);
}
}
if (tb[IFLA_INET6_ICMP6STATS]) {
unsigned char *cnt = nla_data(tb[IFLA_INET6_ICMP6STATS]);
uint64_t stat;
int i;
for (i = 1; i < __ICMP6_MIB_MAX; i++) {
memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));
rtnl_link_set_stat(link, RTNL_LINK_ICMP6_INMSGS + i - 1,
stat);
}
}
return 0;
}
static int inet6_parse_protinfo(struct rtnl_link *link, struct nlattr *attr,
void *data)
{
struct inet6_data *i6 = data;
struct nlattr *tb[IFLA_INET6_MAX+1];
int err;
err = nla_parse_nested(tb, IFLA_INET6_MAX, attr, inet6_policy);
if (err < 0)
return err;
if (tb[IFLA_INET6_CONF] && nla_len(tb[IFLA_INET6_CONF]) % 4)
return -EINVAL;
if (tb[IFLA_INET6_STATS] && nla_len(tb[IFLA_INET6_STATS]) % 8)
return -EINVAL;
if (tb[IFLA_INET6_ICMP6STATS] && nla_len(tb[IFLA_INET6_ICMP6STATS]) % 8)
return -EINVAL;
if (tb[IFLA_INET6_FLAGS])
i6->i6_flags = nla_get_u32(tb[IFLA_INET6_FLAGS]);
if (tb[IFLA_INET6_CACHEINFO])
nla_memcpy(&i6->i6_cacheinfo, tb[IFLA_INET6_CACHEINFO],
sizeof(i6->i6_cacheinfo));
if (tb[IFLA_INET6_CONF])
nla_memcpy(&i6->i6_conf, tb[IFLA_INET6_CONF],
sizeof(i6->i6_conf));
if (tb[IFLA_INET6_TOKEN])
nla_memcpy(&i6->i6_token, tb[IFLA_INET6_TOKEN],
sizeof(struct in6_addr));
if (tb[IFLA_INET6_ADDR_GEN_MODE])
i6->i6_addr_gen_mode = nla_get_u8 (tb[IFLA_INET6_ADDR_GEN_MODE]);
/*
* Due to 32bit data alignment, these addresses must be copied to an
* aligned location prior to access.
*/
if (tb[IFLA_INET6_STATS]) {
unsigned char *cnt = nla_data(tb[IFLA_INET6_STATS]);
uint64_t stat;
int i;
int len = nla_len(tb[IFLA_INET6_STATS]) / 8;
const uint8_t *map_stat_id = map_stat_id_from_IPSTATS_MIB_v2;
if (len < 32 ||
(tb[IFLA_INET6_ICMP6STATS] && nla_len(tb[IFLA_INET6_ICMP6STATS]) < 6)) {
/* kernel commit 14a196807482e6fc74f15fc03176d5c08880588f reordered the values.
* The later commit 6a5dc9e598fe90160fee7de098fa319665f5253e added values
* IPSTATS_MIB_CSUMERRORS/ICMP6_MIB_CSUMERRORS. If the netlink is shorter
* then this, assume that the kernel uses the previous meaning of the
* enumeration. */
map_stat_id = map_stat_id_from_IPSTATS_MIB_v1;
}
len = min_t(int, __IPSTATS_MIB_MAX, len);
for (i = 1; i < len; i++) {
memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));
rtnl_link_set_stat(link, map_stat_id[i], stat);
}
}
if (tb[IFLA_INET6_ICMP6STATS]) {
unsigned char *cnt = nla_data(tb[IFLA_INET6_ICMP6STATS]);
uint64_t stat;
int i;
int len = min_t(int, __ICMP6_MIB_MAX, nla_len(tb[IFLA_INET6_ICMP6STATS]) / 8);
for (i = 1; i < len; i++) {
memcpy(&stat, &cnt[i * sizeof(stat)], sizeof(stat));
rtnl_link_set_stat(link, RTNL_LINK_ICMP6_INMSGS + i - 1,
stat);
}
}
return 0;
}
