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| author |   David Ahern <dsahern@gmail.com> | 2018-05-16 13:36:40 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-05-17 14:55:21 -0400 |
| commit | 5a847a6e1477be5bd3f94cc1b7708d7d4a7cd94c (patch) | |
| tree | f115003a688ee3366207745a53eabbe53a533796 /net/ipv4/route.c | |
| parent | tls: don't use stack memory in a scatterlist (diff) | |
| download | wireguard-linux-5a847a6e1477be5bd3f94cc1b7708d7d4a7cd94c.tar.xz wireguard-linux-5a847a6e1477be5bd3f94cc1b7708d7d4a7cd94c.zip | |
net/ipv4: Initialize proto and ports in flow struct
Updating the FIB tracepoint for the recent change to allow rules using
the protocol and ports exposed a few places where the entries in the flow
struct are not initialized.
For __fib_validate_source add the call to fib4_rules_early_flow_dissect
since it is invoked for the input path. For netfilter, add the memset on
the flow struct to avoid future problems like this. In ip_route_input_slow
need to set the fields if the skb dissection does not happen.
Fixes: bfff4862653b ("net: fib_rules: support for match on ip_proto, sport and dport")
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 29268efad247..2cfa1b518f8d 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1961,8 +1961,13 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, fl4.saddr = saddr; fl4.flowi4_uid = sock_net_uid(net, NULL); - if (fib4_rules_early_flow_dissect(net, skb, &fl4, &_flkeys)) + if (fib4_rules_early_flow_dissect(net, skb, &fl4, &_flkeys)) { flkeys = &_flkeys; + } else { + fl4.flowi4_proto = 0; + fl4.fl4_sport = 0; + fl4.fl4_dport = 0; + } err = fib_lookup(net, &fl4, res, 0); if (err != 0) { |