[PATCH net-next RFC v1 16/27] afnetns: add udpv6 support
From: Hannes Frederic Sowa <hidden>
Date: 2017-03-12 23:02:21
Subsystem:
networking [general], the rest, user datagram protocol (udp) · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Willem de Bruijn
Signed-off-by: Hannes Frederic Sowa <redacted> --- net/ipv6/datagram.c | 6 ++++-- net/ipv6/udp.c | 18 +++++++++++++----- 2 files changed, 17 insertions(+), 7 deletions(-)
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index eec27f87efaca1..cd811e8b1ba824 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c@@ -804,8 +804,10 @@ int ip6_datagram_send_ctl(struct net *net, struct sock *sk, if (addr_type != IPV6_ADDR_ANY) { int strict = __ipv6_addr_src_scope(addr_type) <= IPV6_ADDR_SCOPE_LINKLOCAL; if (!(inet_sk(sk)->freebind || inet_sk(sk)->transparent) && - !ipv6_chk_addr(net, &src_info->ipi6_addr, - strict ? dev : NULL, 0) && + !ipv6_chk_addr_and_flags(net, sock_afnetns(sk), + &src_info->ipi6_addr, + strict ? dev : NULL, 0, + IFA_F_TENTATIVE) && !ipv6_chk_acast_addr_src(net, dev, &src_info->ipi6_addr)) err = -EINVAL;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 4e4c401e3bc690..d63e0e362fe72b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c@@ -126,6 +126,7 @@ static void udp_v6_rehash(struct sock *sk) } static int compute_score(struct sock *sk, struct net *net, + struct afnetns *afnetns, const struct in6_addr *saddr, __be16 sport, const struct in6_addr *daddr, unsigned short hnum, int dif, bool exact_dif)
@@ -138,6 +139,9 @@ static int compute_score(struct sock *sk, struct net *net, sk->sk_family != PF_INET6) return -1; + if (sock_afnetns(sk) != afnetns) + return -1; + score = 0; inet = inet_sk(sk);
@@ -173,6 +177,7 @@ static int compute_score(struct sock *sk, struct net *net, /* called with rcu_read_lock() */ static struct sock *udp6_lib_lookup2(struct net *net, + struct afnetns *afnetns, const struct in6_addr *saddr, __be16 sport, const struct in6_addr *daddr, unsigned int hnum, int dif, bool exact_dif, struct udp_hslot *hslot2,
@@ -185,7 +190,7 @@ static struct sock *udp6_lib_lookup2(struct net *net, result = NULL; badness = -1; udp_portaddr_for_each_entry_rcu(sk, &hslot2->head) { - score = compute_score(sk, net, saddr, sport, + score = compute_score(sk, net, afnetns, saddr, sport, daddr, hnum, dif, exact_dif); if (score > badness) { reuseport = sk->sk_reuseport;
@@ -224,8 +229,11 @@ struct sock *__udp6_lib_lookup(struct net *net, struct udp_hslot *hslot2, *hslot = &udptable->hash[slot]; bool exact_dif = udp6_lib_exact_dif_match(net, skb); int score, badness, matches = 0, reuseport = 0; + struct afnetns *afnetns; u32 hash = 0; + afnetns = ipv6_get_ifaddr_afnetns_rcu(net, daddr, skb->dev); + if (hslot->count > 10) { hash2 = udp6_portaddr_hash(net, daddr, hnum); slot2 = hash2 & udptable->mask;
@@ -233,7 +241,7 @@ struct sock *__udp6_lib_lookup(struct net *net, if (hslot->count < hslot2->count) goto begin; - result = udp6_lib_lookup2(net, saddr, sport, + result = udp6_lib_lookup2(net, afnetns, saddr, sport, daddr, hnum, dif, exact_dif, hslot2, skb); if (!result) {
@@ -248,7 +256,7 @@ struct sock *__udp6_lib_lookup(struct net *net, if (hslot->count < hslot2->count) goto begin; - result = udp6_lib_lookup2(net, saddr, sport, + result = udp6_lib_lookup2(net, afnetns, saddr, sport, daddr, hnum, dif, exact_dif, hslot2, skb);
@@ -259,8 +267,8 @@ struct sock *__udp6_lib_lookup(struct net *net, result = NULL; badness = -1; sk_for_each_rcu(sk, &hslot->head) { - score = compute_score(sk, net, saddr, sport, daddr, hnum, dif, - exact_dif); + score = compute_score(sk, net, afnetns, saddr, sport, daddr, + hnum, dif, exact_dif); if (score > badness) { reuseport = sk->sk_reuseport; if (reuseport) {
--
2.9.3