[PATCH] pptp: support sockets bound to an interface
From: Ulrich Weber <hidden>
Date: 2020-01-14 14:19:58
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
use sk_bound_dev_if for route lookup as already done in most of the other ip_route_output_ports() calls. Since most PPPoA providers use 10.0.0.138 as default gateway IP this will allow connections to multiple PPTP providers with the same IP address over different interfaces. Signed-off-by: Ulrich Weber <redacted> --- drivers/net/ppp/pptp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ppp/pptp.c b/drivers/net/ppp/pptp.c
index e1fabb3e3246..acccb747aeda 100644
--- a/drivers/net/ppp/pptp.c
+++ b/drivers/net/ppp/pptp.c@@ -155,7 +155,7 @@ static int pptp_xmit(struct ppp_channel *chan, struct sk_buff *skb) opt->dst_addr.sin_addr.s_addr, opt->src_addr.sin_addr.s_addr, 0, 0, IPPROTO_GRE, - RT_TOS(0), 0); + RT_TOS(0), sk->sk_bound_dev_if); if (IS_ERR(rt)) goto tx_error;
@@ -444,7 +444,8 @@ static int pptp_connect(struct socket *sock, struct sockaddr *uservaddr, opt->dst_addr.sin_addr.s_addr, opt->src_addr.sin_addr.s_addr, 0, 0, - IPPROTO_GRE, RT_CONN_FLAGS(sk), 0); + IPPROTO_GRE, RT_CONN_FLAGS(sk), + sk->sk_bound_dev_if); if (IS_ERR(rt)) { error = -EHOSTUNREACH; goto end;
--
2.20.1