diff options
Diffstat (limited to 'drivers/net/ppp')
-rw-r--r-- | drivers/net/ppp/ppp_generic.c | 22 | ||||
-rw-r--r-- | drivers/net/ppp/pppoe.c | 23 |
2 files changed, 45 insertions, 0 deletions
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index d445ecb1d0c7..930e49ef15f6 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -1560,12 +1560,34 @@ static void ppp_dev_priv_destructor(struct net_device *dev) ppp_destroy_interface(ppp); } +static int ppp_fill_forward_path(struct net_device_path_ctx *ctx, + struct net_device_path *path) +{ + struct ppp *ppp = netdev_priv(ctx->dev); + struct ppp_channel *chan; + struct channel *pch; + + if (ppp->flags & SC_MULTILINK) + return -EOPNOTSUPP; + + if (list_empty(&ppp->channels)) + return -ENODEV; + + pch = list_first_entry(&ppp->channels, struct channel, clist); + chan = pch->chan; + if (!chan->ops->fill_forward_path) + return -EOPNOTSUPP; + + return chan->ops->fill_forward_path(ctx, path, chan); +} + static const struct net_device_ops ppp_netdev_ops = { .ndo_init = ppp_dev_init, .ndo_uninit = ppp_dev_uninit, .ndo_start_xmit = ppp_start_xmit, .ndo_do_ioctl = ppp_net_ioctl, .ndo_get_stats64 = ppp_get_stats64, + .ndo_fill_forward_path = ppp_fill_forward_path, }; static struct device_type ppp_type = { diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 9dc7f4b93d51..3619520340b7 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -972,8 +972,31 @@ static int pppoe_xmit(struct ppp_channel *chan, struct sk_buff *skb) return __pppoe_xmit(sk, skb); } +static int pppoe_fill_forward_path(struct net_device_path_ctx *ctx, + struct net_device_path *path, + const struct ppp_channel *chan) +{ + struct sock *sk = (struct sock *)chan->private; + struct pppox_sock *po = pppox_sk(sk); + struct net_device *dev = po->pppoe_dev; + + if (sock_flag(sk, SOCK_DEAD) || + !(sk->sk_state & PPPOX_CONNECTED) || !dev) + return -1; + + path->type = DEV_PATH_PPPOE; + path->encap.proto = htons(ETH_P_PPP_SES); + path->encap.id = be16_to_cpu(po->num); + memcpy(path->encap.h_dest, po->pppoe_pa.remote, ETH_ALEN); + path->dev = ctx->dev; + ctx->dev = dev; + + return 0; +} + static const struct ppp_channel_ops pppoe_chan_ops = { .start_xmit = pppoe_xmit, + .fill_forward_path = pppoe_fill_forward_path, }; static int pppoe_recvmsg(struct socket *sock, struct msghdr *m, |