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| author | Ben Hutchings <ben.hutchings@codethink.co.uk> | 2018-01-22 20:06:42 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-23 19:53:24 -0500 |
| commit | e9191ffb65d8e159680ce0ad2224e1acbde6985c (patch) | |
| tree | cda833699bac10f733fb98620c9c166e701ae42b | |
| parent | 02612bb05e51df8489db5e94d0cf8d1c81f87b0c (diff) | |
| download | blackbird-op-linux-e9191ffb65d8e159680ce0ad2224e1acbde6985c.tar.gz blackbird-op-linux-e9191ffb65d8e159680ce0ad2224e1acbde6985c.zip | |
ipv6: Fix getsockopt() for sockets with default IPV6_AUTOFLOWLABEL
Commit 513674b5a2c9 ("net: reevalulate autoflowlabel setting after
sysctl setting") removed the initialisation of
ipv6_pinfo::autoflowlabel and added a second flag to indicate
whether this field or the net namespace default should be used.
The getsockopt() handling for this case was not updated, so it
currently returns 0 for all sockets for which IPV6_AUTOFLOWLABEL is
not explicitly enabled. Fix it to return the effective value, whether
that has been set at the socket or net namespace level.
Fixes: 513674b5a2c9 ("net: reevalulate autoflowlabel setting after sysctl ...")
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/ipv6.h | 1 | ||||
| -rw-r--r-- | net/ipv6/ip6_output.c | 2 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 2 |
3 files changed, 3 insertions, 2 deletions
diff --git a/include/net/ipv6.h b/include/net/ipv6.h index f73797e2fa60..221238254eb7 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -331,6 +331,7 @@ int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq, int flags); int ip6_flowlabel_init(void); void ip6_flowlabel_cleanup(void); +bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np); static inline void fl6_sock_release(struct ip6_flowlabel *fl) { diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 4f7d8de56611..3763dc01e374 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -166,7 +166,7 @@ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb) !(IP6CB(skb)->flags & IP6SKB_REROUTED)); } -static bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np) +bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np) { if (!np->autoflowlabel_set) return ip6_default_np_autolabel(net); diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 2d4680e0376f..e8ffb5b5d84e 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -1336,7 +1336,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, break; case IPV6_AUTOFLOWLABEL: - val = np->autoflowlabel; + val = ip6_autoflowlabel(sock_net(sk), np); break; case IPV6_RECVFRAGSIZE: |
