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| author | WANG Cong <xiyou.wangcong@gmail.com> | 2014-05-12 16:04:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-14 15:31:45 -0400 |
| commit | 122ff243f5f104194750ecbc76d5946dd1eec934 (patch) | |
| tree | 189020a4d2404ef567785458fee38992e14ca97d /include | |
| parent | 9cc5e36d1c4794939deafd9f43bce2eab9c1142d (diff) | |
| download | linux-122ff243f5f104194750ecbc76d5946dd1eec934.tar.gz linux-122ff243f5f104194750ecbc76d5946dd1eec934.tar.bz2 linux-122ff243f5f104194750ecbc76d5946dd1eec934.zip | |
ipv4: make ip_local_reserved_ports per netns
ip_local_port_range is already per netns, so should ip_local_reserved_ports
be. And since it is none by default we don't actually need it when we don't
enable CONFIG_SYSCTL.
By the way, rename inet_is_reserved_local_port() to inet_is_local_reserved_port()
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip.h | 14 | ||||
| -rw-r--r-- | include/net/netns/ipv4.h | 4 |
2 files changed, 15 insertions, 3 deletions
diff --git a/include/net/ip.h b/include/net/ip.h index 14c50a1650ef..512bcd5dabac 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -208,11 +208,19 @@ static inline u64 snmp_fold_field64(void __percpu *mib, int offt, size_t syncp_o void inet_get_local_port_range(struct net *net, int *low, int *high); -extern unsigned long *sysctl_local_reserved_ports; -static inline int inet_is_reserved_local_port(int port) +#if CONFIG_SYSCTL +static inline int inet_is_local_reserved_port(struct net *net, int port) { - return test_bit(port, sysctl_local_reserved_ports); + if (!net->ipv4.sysctl_local_reserved_ports) + return 0; + return test_bit(port, net->ipv4.sysctl_local_reserved_ports); } +#else +static inline int inet_is_local_reserved_port(struct net *net, int port) +{ + return 0; +} +#endif extern int sysctl_ip_nonlocal_bind; diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 2f0cfad66666..aec5e12f9f19 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -84,6 +84,10 @@ struct netns_ipv4 { atomic_t dev_addr_genid; +#ifdef CONFIG_SYSCTL + unsigned long *sysctl_local_reserved_ports; +#endif + #ifdef CONFIG_IP_MROUTE #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES struct mr_table *mrt; |