47 static void set_local_port_range(struct net *net, int range[2])  in set_local_port_range()  argument
51 	write_seqlock_bh(&net->ipv4.ip_local_ports.lock);  in set_local_port_range()
52 	if (same_parity && !net->ipv4.ip_local_ports.warned) {  in set_local_port_range()
53 		net->ipv4.ip_local_ports.warned = true;  in set_local_port_range()
56 	net->ipv4.ip_local_ports.range[0] = range[0];  in set_local_port_range()
57 	net->ipv4.ip_local_ports.range[1] = range[1];  in set_local_port_range()
58 	write_sequnlock_bh(&net->ipv4.ip_local_ports.lock);  in set_local_port_range()
66 	struct net *net =  in ipv4_local_port_range()  local
67 		container_of(table->data, struct net, ipv4.ip_local_ports.range);  in ipv4_local_port_range()
78 	inet_get_local_port_range(net, &range[0], &range[1]);  in ipv4_local_port_range()
86 			set_local_port_range(net, range);  in ipv4_local_port_range()
96 	struct net *net =  in inet_get_ping_group_range_table()  local
97 		container_of(table->data, struct net, ipv4.ping_group_range.range);  in inet_get_ping_group_range_table()
100 		seq = read_seqbegin(&net->ipv4.ip_local_ports.lock);  in inet_get_ping_group_range_table()
104 	} while (read_seqretry(&net->ipv4.ip_local_ports.lock, seq));  in inet_get_ping_group_range_table()
111 	struct net *net =  in set_ping_group_range()  local
112 		container_of(table->data, struct net, ipv4.ping_group_range.range);  in set_ping_group_range()
113 	write_seqlock(&net->ipv4.ip_local_ports.lock);  in set_ping_group_range()
116 	write_sequnlock(&net->ipv4.ip_local_ports.lock);  in set_ping_group_range()
956 static __net_init int ipv4_sysctl_init_net(struct net *net)  in ipv4_sysctl_init_net()  argument
961 	if (!net_eq(net, &init_net)) {  in ipv4_sysctl_init_net()
970 			table[i].data += (void *)net - (void *)&init_net;  in ipv4_sysctl_init_net()
973 	net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);  in ipv4_sysctl_init_net()
974 	if (!net->ipv4.ipv4_hdr)  in ipv4_sysctl_init_net()
977 	net->ipv4.sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL);  in ipv4_sysctl_init_net()
978 	if (!net->ipv4.sysctl_local_reserved_ports)  in ipv4_sysctl_init_net()
984 	unregister_net_sysctl_table(net->ipv4.ipv4_hdr);  in ipv4_sysctl_init_net()
986 	if (!net_eq(net, &init_net))  in ipv4_sysctl_init_net()
992 static __net_exit void ipv4_sysctl_exit_net(struct net *net)  in ipv4_sysctl_exit_net()  argument
996 	kfree(net->ipv4.sysctl_local_reserved_ports);  in ipv4_sysctl_exit_net()
997 	table = net->ipv4.ipv4_hdr->ctl_table_arg;  in ipv4_sysctl_exit_net()
998 	unregister_net_sysctl_table(net->ipv4.ipv4_hdr);  in ipv4_sysctl_exit_net()