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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-18 07:17:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-18 07:17:04 +0300
commit52f40e9d657cc126b766304a5dd58ad73b02ff46 (patch)
tree7cbc22b9a89fe41103e6a61a52b7f9c71ef5ba43 /net/ipv4
parent231753ef780012eb6f3922c3dfc0a7186baa33c2 (diff)
parent3e3397e7b11ce1b9526975ddfbe8dd569fc1f316 (diff)
downloadlinux-52f40e9d657cc126b766304a5dd58ad73b02ff46.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes and cleanups from David Miller: 1) Revert bogus nla_ok() change, from Alexey Dobriyan. 2) Various bpf validator fixes from Daniel Borkmann. 3) Add some necessary SET_NETDEV_DEV() calls to hsis_femac and hip04 drivers, from Dongpo Li. 4) Several ethtool ksettings conversions from Philippe Reynes. 5) Fix bugs in inet port management wrt. soreuseport, from Tom Herbert. 6) XDP support for virtio_net, from John Fastabend. 7) Fix NAT handling within a vrf, from David Ahern. 8) Endianness fixes in dpaa_eth driver, from Claudiu Manoil * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (63 commits) net: mv643xx_eth: fix build failure isdn: Constify some function parameters mlxsw: spectrum: Mark split ports as such cgroup: Fix CGROUP_BPF config qed: fix old-style function definition net: ipv6: check route protocol when deleting routes r6040: move spinlock in r6040_close as SOFTIRQ-unsafe lock order detected irda: w83977af_ir: cleanup an indent issue net: sfc: use new api ethtool_{get|set}_link_ksettings net: davicom: dm9000: use new api ethtool_{get|set}_link_ksettings net: cirrus: ep93xx: use new api ethtool_{get|set}_link_ksettings net: chelsio: cxgb3: use new api ethtool_{get|set}_link_ksettings net: chelsio: cxgb2: use new api ethtool_{get|set}_link_ksettings bpf: fix mark_reg_unknown_value for spilled regs on map value marking bpf: fix overflow in prog accounting bpf: dynamically allocate digest scratch buffer gtp: Fix initialization of Flags octet in GTPv1 header gtp: gtp_check_src_ms_ipv4() always return success net/x25: use designated initializers isdn: use designated initializers ...
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/inet_connection_sock.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index d5d3ead0a6c3..19ea045c50ed 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -45,11 +45,12 @@ void inet_get_local_port_range(struct net *net, int *low, int *high)
EXPORT_SYMBOL(inet_get_local_port_range);
int inet_csk_bind_conflict(const struct sock *sk,
- const struct inet_bind_bucket *tb, bool relax)
+ const struct inet_bind_bucket *tb, bool relax,
+ bool reuseport_ok)
{
struct sock *sk2;
- int reuse = sk->sk_reuse;
- int reuseport = sk->sk_reuseport;
+ bool reuse = sk->sk_reuse;
+ bool reuseport = !!sk->sk_reuseport && reuseport_ok;
kuid_t uid = sock_i_uid((struct sock *)sk);
/*
@@ -105,6 +106,7 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
struct inet_bind_bucket *tb;
kuid_t uid = sock_i_uid(sk);
u32 remaining, offset;
+ bool reuseport_ok = !!snum;
if (port) {
have_port:
@@ -165,7 +167,8 @@ other_parity_scan:
smallest_size = tb->num_owners;
smallest_port = port;
}
- if (!inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb, false))
+ if (!inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb, false,
+ reuseport_ok))
goto tb_found;
goto next_port;
}
@@ -206,13 +209,14 @@ tb_found:
sk->sk_reuseport && uid_eq(tb->fastuid, uid))) &&
smallest_size == -1)
goto success;
- if (inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb, true)) {
+ if (inet_csk(sk)->icsk_af_ops->bind_conflict(sk, tb, true,
+ reuseport_ok)) {
if ((reuse ||
(tb->fastreuseport > 0 &&
sk->sk_reuseport &&
!rcu_access_pointer(sk->sk_reuseport_cb) &&
uid_eq(tb->fastuid, uid))) &&
- smallest_size != -1 && --attempts >= 0) {
+ !snum && smallest_size != -1 && --attempts >= 0) {
spin_unlock_bh(&head->lock);
goto again;
}