diff options
Diffstat (limited to 'drivers/net/can/dev/netlink.c')
| -rw-r--r-- | drivers/net/can/dev/netlink.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/net/can/dev/netlink.c b/drivers/net/can/dev/netlink.c index 95cca4e5251f..7633d98e3912 100644 --- a/drivers/net/can/dev/netlink.c +++ b/drivers/net/can/dev/netlink.c @@ -21,6 +21,7 @@ static const struct nla_policy can_policy[IFLA_CAN_MAX + 1] = { [IFLA_CAN_DATA_BITTIMING_CONST] = { .len = sizeof(struct can_bittiming_const) }, [IFLA_CAN_TERMINATION] = { .type = NLA_U16 }, [IFLA_CAN_TDC] = { .type = NLA_NESTED }, + [IFLA_CAN_CTRLMODE_EXT] = { .type = NLA_NESTED }, }; static const struct nla_policy can_tdc_policy[IFLA_CAN_TDC_MAX + 1] = { @@ -211,7 +212,7 @@ static int can_changelink(struct net_device *dev, struct nlattr *tb[], if (dev->flags & IFF_UP) return -EBUSY; cm = nla_data(data[IFLA_CAN_CTRLMODE]); - ctrlstatic = priv->ctrlmode_static; + ctrlstatic = can_get_static_ctrlmode(priv); maskedflags = cm->flags & cm->mask; /* check whether provided bits are allowed to be passed */ @@ -383,6 +384,12 @@ static size_t can_tdc_get_size(const struct net_device *dev) return size; } +static size_t can_ctrlmode_ext_get_size(void) +{ + return nla_total_size(0) + /* nest IFLA_CAN_CTRLMODE_EXT */ + nla_total_size(sizeof(u32)); /* IFLA_CAN_CTRLMODE_SUPPORTED */ +} + static size_t can_get_size(const struct net_device *dev) { struct can_priv *priv = netdev_priv(dev); @@ -415,6 +422,7 @@ static size_t can_get_size(const struct net_device *dev) priv->data_bitrate_const_cnt); size += sizeof(priv->bitrate_max); /* IFLA_CAN_BITRATE_MAX */ size += can_tdc_get_size(dev); /* IFLA_CAN_TDC */ + size += can_ctrlmode_ext_get_size(); /* IFLA_CAN_CTRLMODE_EXT */ return size; } @@ -472,6 +480,25 @@ err_cancel: return -EMSGSIZE; } +static int can_ctrlmode_ext_fill_info(struct sk_buff *skb, + const struct can_priv *priv) +{ + struct nlattr *nest; + + nest = nla_nest_start(skb, IFLA_CAN_CTRLMODE_EXT); + if (!nest) + return -EMSGSIZE; + + if (nla_put_u32(skb, IFLA_CAN_CTRLMODE_SUPPORTED, + priv->ctrlmode_supported)) { + nla_nest_cancel(skb, nest); + return -EMSGSIZE; + } + + nla_nest_end(skb, nest); + return 0; +} + static int can_fill_info(struct sk_buff *skb, const struct net_device *dev) { struct can_priv *priv = netdev_priv(dev); @@ -531,7 +558,9 @@ static int can_fill_info(struct sk_buff *skb, const struct net_device *dev) sizeof(priv->bitrate_max), &priv->bitrate_max)) || - (can_tdc_fill_info(skb, dev)) + can_tdc_fill_info(skb, dev) || + + can_ctrlmode_ext_fill_info(skb, priv) ) return -EMSGSIZE; |