mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 14:43:58 +08:00
ed2dfd9009
After commit 07f4c90062 ("tcp/dccp: try to not exhaust
ip_local_port_range in connect()") it is advised to have an even number
of ports described in /proc/sys/net/ipv4/ip_local_port_range
This means start/end values should have a different parity.
Let's warn sysadmins of this, so that they can update their settings
if they want to.
Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
113 lines
2.4 KiB
C
113 lines
2.4 KiB
C
/*
|
|
* ipv4 in net namespaces
|
|
*/
|
|
|
|
#ifndef __NETNS_IPV4_H__
|
|
#define __NETNS_IPV4_H__
|
|
|
|
#include <linux/uidgid.h>
|
|
#include <net/inet_frag.h>
|
|
#include <linux/rcupdate.h>
|
|
|
|
struct tcpm_hash_bucket;
|
|
struct ctl_table_header;
|
|
struct ipv4_devconf;
|
|
struct fib_rules_ops;
|
|
struct hlist_head;
|
|
struct fib_table;
|
|
struct sock;
|
|
struct local_ports {
|
|
seqlock_t lock;
|
|
int range[2];
|
|
bool warned;
|
|
};
|
|
|
|
struct ping_group_range {
|
|
seqlock_t lock;
|
|
kgid_t range[2];
|
|
};
|
|
|
|
struct netns_ipv4 {
|
|
#ifdef CONFIG_SYSCTL
|
|
struct ctl_table_header *forw_hdr;
|
|
struct ctl_table_header *frags_hdr;
|
|
struct ctl_table_header *ipv4_hdr;
|
|
struct ctl_table_header *route_hdr;
|
|
struct ctl_table_header *xfrm4_hdr;
|
|
#endif
|
|
struct ipv4_devconf *devconf_all;
|
|
struct ipv4_devconf *devconf_dflt;
|
|
#ifdef CONFIG_IP_MULTIPLE_TABLES
|
|
struct fib_rules_ops *rules_ops;
|
|
bool fib_has_custom_rules;
|
|
struct fib_table __rcu *fib_local;
|
|
struct fib_table __rcu *fib_main;
|
|
struct fib_table __rcu *fib_default;
|
|
#endif
|
|
#ifdef CONFIG_IP_ROUTE_CLASSID
|
|
int fib_num_tclassid_users;
|
|
#endif
|
|
struct hlist_head *fib_table_hash;
|
|
bool fib_offload_disabled;
|
|
struct sock *fibnl;
|
|
|
|
struct sock * __percpu *icmp_sk;
|
|
struct sock *mc_autojoin_sk;
|
|
|
|
struct inet_peer_base *peers;
|
|
struct sock * __percpu *tcp_sk;
|
|
struct netns_frags frags;
|
|
#ifdef CONFIG_NETFILTER
|
|
struct xt_table *iptable_filter;
|
|
struct xt_table *iptable_mangle;
|
|
struct xt_table *iptable_raw;
|
|
struct xt_table *arptable_filter;
|
|
#ifdef CONFIG_SECURITY
|
|
struct xt_table *iptable_security;
|
|
#endif
|
|
struct xt_table *nat_table;
|
|
#endif
|
|
|
|
int sysctl_icmp_echo_ignore_all;
|
|
int sysctl_icmp_echo_ignore_broadcasts;
|
|
int sysctl_icmp_ignore_bogus_error_responses;
|
|
int sysctl_icmp_ratelimit;
|
|
int sysctl_icmp_ratemask;
|
|
int sysctl_icmp_errors_use_inbound_ifaddr;
|
|
|
|
struct local_ports ip_local_ports;
|
|
|
|
int sysctl_tcp_ecn;
|
|
int sysctl_tcp_ecn_fallback;
|
|
|
|
int sysctl_ip_no_pmtu_disc;
|
|
int sysctl_ip_fwd_use_pmtu;
|
|
int sysctl_ip_nonlocal_bind;
|
|
|
|
int sysctl_fwmark_reflect;
|
|
int sysctl_tcp_fwmark_accept;
|
|
int sysctl_tcp_mtu_probing;
|
|
int sysctl_tcp_base_mss;
|
|
int sysctl_tcp_probe_threshold;
|
|
u32 sysctl_tcp_probe_interval;
|
|
|
|
struct ping_group_range ping_group_range;
|
|
|
|
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;
|
|
#else
|
|
struct list_head mr_tables;
|
|
struct fib_rules_ops *mr_rules_ops;
|
|
#endif
|
|
#endif
|
|
atomic_t rt_genid;
|
|
};
|
|
#endif
|