In case of an older kernel that doesn't set L2TP_ATTR_UDP_ZERO_CSUM6_{R,T}X
the old hard-coded value is being preserved, since the attribute flag will be
missing.
Signed-off-by: Asbjørn Sloth Tønnesen <asbj...@asbjorn.st>
---
ip/ipl2tp.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/ip/ipl2tp.c b/ip/ipl2tp.c
index 6d00d09..8f3268d 100644
--- a/ip/ipl2tp.c
+++ b/ip/ipl2tp.c
@@ -296,12 +296,9 @@ static int get_response(struct nlmsghdr *n, void *arg)
p->l2spec_len = rta_getattr_u8(attrs[L2TP_ATTR_L2SPEC_LEN]);
p->udp_csum = !!attrs[L2TP_ATTR_UDP_CSUM];
- /*
- * Not fetching from L2TP_ATTR_UDP_ZERO_CSUM6_{T,R}X because the
- * kernel doesn't send it so just leave it as default value.
- */
- p->udp6_csum_tx = 1;
- p->udp6_csum_rx = 1;
+ p->udp6_csum_tx = !attrs[L2TP_ATTR_UDP_ZERO_CSUM6_TX];
+ p->udp6_csum_rx = !attrs[L2TP_ATTR_UDP_ZERO_CSUM6_RX];
+
if (attrs[L2TP_ATTR_COOKIE])
memcpy(p->cookie, RTA_DATA(attrs[L2TP_ATTR_COOKIE]),
p->cookie_len = RTA_PAYLOAD(attrs[L2TP_ATTR_COOKIE]));
--
2.10.1
