From f41fe3c2acc9e40304ac1dae0f243ef27fe85dee Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 9 May 2016 17:12:09 -0700 Subject: [PATCH] gre6: Fix flag translations GRE for IPv6 does not properly translate for GRE flags to tunnel flags and vice versa. This patch fixes that. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- net/ipv6/ip6_gre.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c index 6d0aa94cf59a..509fb9273771 100644 --- a/net/ipv6/ip6_gre.c +++ b/net/ipv6/ip6_gre.c @@ -795,8 +795,8 @@ static void ip6gre_tnl_parm_from_user(struct __ip6_tnl_parm *p, p->link = u->link; p->i_key = u->i_key; p->o_key = u->o_key; - p->i_flags = u->i_flags; - p->o_flags = u->o_flags; + p->i_flags = gre_flags_to_tnl_flags(u->i_flags); + p->o_flags = gre_flags_to_tnl_flags(u->o_flags); memcpy(p->name, u->name, sizeof(u->name)); } @@ -813,8 +813,8 @@ static void ip6gre_tnl_parm_to_user(struct ip6_tnl_parm2 *u, u->link = p->link; u->i_key = p->i_key; u->o_key = p->o_key; - u->i_flags = p->i_flags; - u->o_flags = p->o_flags; + u->i_flags = gre_tnl_flags_to_gre_flags(p->i_flags); + u->o_flags = gre_tnl_flags_to_gre_flags(p->o_flags); memcpy(u->name, p->name, sizeof(u->name)); } @@ -1214,10 +1214,12 @@ static void ip6gre_netlink_parms(struct nlattr *data[], parms->link = nla_get_u32(data[IFLA_GRE_LINK]); if (data[IFLA_GRE_IFLAGS]) - parms->i_flags = nla_get_be16(data[IFLA_GRE_IFLAGS]); + parms->i_flags = gre_flags_to_tnl_flags( + nla_get_be16(data[IFLA_GRE_IFLAGS])); if (data[IFLA_GRE_OFLAGS]) - parms->o_flags = nla_get_be16(data[IFLA_GRE_OFLAGS]); + parms->o_flags = gre_flags_to_tnl_flags( + nla_get_be16(data[IFLA_GRE_OFLAGS])); if (data[IFLA_GRE_IKEY]) parms->i_key = nla_get_be32(data[IFLA_GRE_IKEY]); @@ -1409,8 +1411,10 @@ static int ip6gre_fill_info(struct sk_buff *skb, const struct net_device *dev) struct __ip6_tnl_parm *p = &t->parms; if (nla_put_u32(skb, IFLA_GRE_LINK, p->link) || - nla_put_be16(skb, IFLA_GRE_IFLAGS, p->i_flags) || - nla_put_be16(skb, IFLA_GRE_OFLAGS, p->o_flags) || + nla_put_be16(skb, IFLA_GRE_IFLAGS, + gre_tnl_flags_to_gre_flags(p->i_flags)) || + nla_put_be16(skb, IFLA_GRE_OFLAGS, + gre_tnl_flags_to_gre_flags(p->o_flags)) || nla_put_be32(skb, IFLA_GRE_IKEY, p->i_key) || nla_put_be32(skb, IFLA_GRE_OKEY, p->o_key) || nla_put_in6_addr(skb, IFLA_GRE_LOCAL, &p->laddr) || -- 2.20.1