| /* |
| * sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem. |
| * |
| * $Id: sysctl_net_ipv4.c,v 1.50 2001/10/20 00:00:11 davem Exp $ |
| * |
| * Begun April 1, 1996, Mike Shaver. |
| * Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS] |
| */ |
| |
| #include <linux/mm.h> |
| #include <linux/module.h> |
| #include <linux/sysctl.h> |
| #include <linux/igmp.h> |
| #include <linux/inetdevice.h> |
| #include <net/snmp.h> |
| #include <net/icmp.h> |
| #include <net/ip.h> |
| #include <net/route.h> |
| #include <net/tcp.h> |
| #include <net/cipso_ipv4.h> |
| |
| /* From af_inet.c */ |
| extern int sysctl_ip_nonlocal_bind; |
| |
| #ifdef CONFIG_SYSCTL |
| static int zero; |
| static int tcp_retr1_max = 255; |
| static int ip_local_port_range_min[] = { 1, 1 }; |
| static int ip_local_port_range_max[] = { 65535, 65535 }; |
| #endif |
| |
| struct ipv4_config ipv4_config; |
| |
| #ifdef CONFIG_SYSCTL |
| |
| static |
| int ipv4_sysctl_forward(ctl_table *ctl, int write, struct file * filp, |
| void __user *buffer, size_t *lenp, loff_t *ppos) |
| { |
| int val = ipv4_devconf.forwarding; |
| int ret; |
| |
| ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos); |
| |
| if (write && ipv4_devconf.forwarding != val) |
| inet_forward_change(); |
| |
| return ret; |
| } |
| |
| static int ipv4_sysctl_forward_strategy(ctl_table *table, |
| int __user *name, int nlen, |
| void __user *oldval, size_t __user *oldlenp, |
| void __user *newval, size_t newlen, |
| void **context) |
| { |
| int *valp = table->data; |
| int new; |
| |
| if (!newval || !newlen) |
| return 0; |
| |
| if (newlen != sizeof(int)) |
| return -EINVAL; |
| |
| if (get_user(new, (int __user *)newval)) |
| return -EFAULT; |
| |
| if (new == *valp) |
| return 0; |
| |
| if (oldval && oldlenp) { |
| size_t len; |
| |
| if (get_user(len, oldlenp)) |
| return -EFAULT; |
| |
| if (len) { |
| if (len > table->maxlen) |
| len = table->maxlen; |
| if (copy_to_user(oldval, valp, len)) |
| return -EFAULT; |
| if (put_user(len, oldlenp)) |
| return -EFAULT; |
| } |
| } |
| |
| *valp = new; |
| inet_forward_change(); |
| return 1; |
| } |
| |
| static int proc_tcp_congestion_control(ctl_table *ctl, int write, struct file * filp, |
| void __user *buffer, size_t *lenp, loff_t *ppos) |
| { |
| char val[TCP_CA_NAME_MAX]; |
| ctl_table tbl = { |
| .data = val, |
| .maxlen = TCP_CA_NAME_MAX, |
| }; |
| int ret; |
| |
| tcp_get_default_congestion_control(val); |
| |
| ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos); |
| if (write && ret == 0) |
| ret = tcp_set_default_congestion_control(val); |
| return ret; |
| } |
| |
| static int sysctl_tcp_congestion_control(ctl_table *table, int __user *name, |
| int nlen, void __user *oldval, |
| size_t __user *oldlenp, |
| void __user *newval, size_t newlen, |
| void **context) |
| { |
| char val[TCP_CA_NAME_MAX]; |
| ctl_table tbl = { |
| .data = val, |
| .maxlen = TCP_CA_NAME_MAX, |
| }; |
| int ret; |
| |
| tcp_get_default_congestion_control(val); |
| ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen, |
| context); |
| if (ret == 0 && newval && newlen) |
| ret = tcp_set_default_congestion_control(val); |
| return ret; |
| } |
| |
| static int proc_tcp_available_congestion_control(ctl_table *ctl, |
| int write, struct file * filp, |
| void __user *buffer, size_t *lenp, |
| loff_t *ppos) |
| { |
| ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX, }; |
| int ret; |
| |
| tbl.data = kmalloc(tbl.maxlen, GFP_USER); |
| if (!tbl.data) |
| return -ENOMEM; |
| tcp_get_available_congestion_control(tbl.data, TCP_CA_BUF_MAX); |
| ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos); |
| kfree(tbl.data); |
| return ret; |
| } |
| |
| static int proc_allowed_congestion_control(ctl_table *ctl, |
| int write, struct file * filp, |
| void __user *buffer, size_t *lenp, |
| loff_t *ppos) |
| { |
| ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX }; |
| int ret; |
| |
| tbl.data = kmalloc(tbl.maxlen, GFP_USER); |
| if (!tbl.data) |
| return -ENOMEM; |
| |
| tcp_get_allowed_congestion_control(tbl.data, tbl.maxlen); |
| ret = proc_dostring(&tbl, write, filp, buffer, lenp, ppos); |
| if (write && ret == 0) |
| ret = tcp_set_allowed_congestion_control(tbl.data); |
| kfree(tbl.data); |
| return ret; |
| } |
| |
| static int strategy_allowed_congestion_control(ctl_table *table, int __user *name, |
| int nlen, void __user *oldval, |
| size_t __user *oldlenp, |
| void __user *newval, size_t newlen, |
| void **context) |
| { |
| ctl_table tbl = { .maxlen = TCP_CA_BUF_MAX }; |
| int ret; |
| |
| tbl.data = kmalloc(tbl.maxlen, GFP_USER); |
| if (!tbl.data) |
| return -ENOMEM; |
| |
| tcp_get_available_congestion_control(tbl.data, tbl.maxlen); |
| ret = sysctl_string(&tbl, name, nlen, oldval, oldlenp, newval, newlen, |
| context); |
| if (ret == 0 && newval && newlen) |
| ret = tcp_set_allowed_congestion_control(tbl.data); |
| kfree(tbl.data); |
| |
| return ret; |
| |
| } |
| |
| ctl_table ipv4_table[] = { |
| { |
| .ctl_name = NET_IPV4_TCP_TIMESTAMPS, |
| .procname = "tcp_timestamps", |
| .data = &sysctl_tcp_timestamps, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_WINDOW_SCALING, |
| .procname = "tcp_window_scaling", |
| .data = &sysctl_tcp_window_scaling, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_SACK, |
| .procname = "tcp_sack", |
| .data = &sysctl_tcp_sack, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_RETRANS_COLLAPSE, |
| .procname = "tcp_retrans_collapse", |
| .data = &sysctl_tcp_retrans_collapse, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_FORWARD, |
| .procname = "ip_forward", |
| .data = &ipv4_devconf.forwarding, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &ipv4_sysctl_forward, |
| .strategy = &ipv4_sysctl_forward_strategy |
| }, |
| { |
| .ctl_name = NET_IPV4_DEFAULT_TTL, |
| .procname = "ip_default_ttl", |
| .data = &sysctl_ip_default_ttl, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &ipv4_doint_and_flush, |
| .strategy = &ipv4_doint_and_flush_strategy, |
| }, |
| { |
| .ctl_name = NET_IPV4_NO_PMTU_DISC, |
| .procname = "ip_no_pmtu_disc", |
| .data = &ipv4_config.no_pmtu_disc, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_NONLOCAL_BIND, |
| .procname = "ip_nonlocal_bind", |
| .data = &sysctl_ip_nonlocal_bind, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_SYN_RETRIES, |
| .procname = "tcp_syn_retries", |
| .data = &sysctl_tcp_syn_retries, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_SYNACK_RETRIES, |
| .procname = "tcp_synack_retries", |
| .data = &sysctl_tcp_synack_retries, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_MAX_ORPHANS, |
| .procname = "tcp_max_orphans", |
| .data = &sysctl_tcp_max_orphans, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_MAX_TW_BUCKETS, |
| .procname = "tcp_max_tw_buckets", |
| .data = &tcp_death_row.sysctl_max_tw_buckets, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_IPFRAG_HIGH_THRESH, |
| .procname = "ipfrag_high_thresh", |
| .data = &sysctl_ipfrag_high_thresh, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_IPFRAG_LOW_THRESH, |
| .procname = "ipfrag_low_thresh", |
| .data = &sysctl_ipfrag_low_thresh, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_DYNADDR, |
| .procname = "ip_dynaddr", |
| .data = &sysctl_ip_dynaddr, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_IPFRAG_TIME, |
| .procname = "ipfrag_time", |
| .data = &sysctl_ipfrag_time, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_KEEPALIVE_TIME, |
| .procname = "tcp_keepalive_time", |
| .data = &sysctl_tcp_keepalive_time, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_KEEPALIVE_PROBES, |
| .procname = "tcp_keepalive_probes", |
| .data = &sysctl_tcp_keepalive_probes, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_KEEPALIVE_INTVL, |
| .procname = "tcp_keepalive_intvl", |
| .data = &sysctl_tcp_keepalive_intvl, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_RETRIES1, |
| .procname = "tcp_retries1", |
| .data = &sysctl_tcp_retries1, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_minmax, |
| .strategy = &sysctl_intvec, |
| .extra2 = &tcp_retr1_max |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_RETRIES2, |
| .procname = "tcp_retries2", |
| .data = &sysctl_tcp_retries2, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_FIN_TIMEOUT, |
| .procname = "tcp_fin_timeout", |
| .data = &sysctl_tcp_fin_timeout, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| #ifdef CONFIG_SYN_COOKIES |
| { |
| .ctl_name = NET_TCP_SYNCOOKIES, |
| .procname = "tcp_syncookies", |
| .data = &sysctl_tcp_syncookies, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| #endif |
| { |
| .ctl_name = NET_TCP_TW_RECYCLE, |
| .procname = "tcp_tw_recycle", |
| .data = &tcp_death_row.sysctl_tw_recycle, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_ABORT_ON_OVERFLOW, |
| .procname = "tcp_abort_on_overflow", |
| .data = &sysctl_tcp_abort_on_overflow, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_STDURG, |
| .procname = "tcp_stdurg", |
| .data = &sysctl_tcp_stdurg, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_RFC1337, |
| .procname = "tcp_rfc1337", |
| .data = &sysctl_tcp_rfc1337, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_MAX_SYN_BACKLOG, |
| .procname = "tcp_max_syn_backlog", |
| .data = &sysctl_max_syn_backlog, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_LOCAL_PORT_RANGE, |
| .procname = "ip_local_port_range", |
| .data = &sysctl_local_port_range, |
| .maxlen = sizeof(sysctl_local_port_range), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_minmax, |
| .strategy = &sysctl_intvec, |
| .extra1 = ip_local_port_range_min, |
| .extra2 = ip_local_port_range_max |
| }, |
| { |
| .ctl_name = NET_IPV4_ICMP_ECHO_IGNORE_ALL, |
| .procname = "icmp_echo_ignore_all", |
| .data = &sysctl_icmp_echo_ignore_all, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS, |
| .procname = "icmp_echo_ignore_broadcasts", |
| .data = &sysctl_icmp_echo_ignore_broadcasts, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES, |
| .procname = "icmp_ignore_bogus_error_responses", |
| .data = &sysctl_icmp_ignore_bogus_error_responses, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR, |
| .procname = "icmp_errors_use_inbound_ifaddr", |
| .data = &sysctl_icmp_errors_use_inbound_ifaddr, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_ROUTE, |
| .procname = "route", |
| .maxlen = 0, |
| .mode = 0555, |
| .child = ipv4_route_table |
| }, |
| #ifdef CONFIG_IP_MULTICAST |
| { |
| .ctl_name = NET_IPV4_IGMP_MAX_MEMBERSHIPS, |
| .procname = "igmp_max_memberships", |
| .data = &sysctl_igmp_max_memberships, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| |
| #endif |
| { |
| .ctl_name = NET_IPV4_IGMP_MAX_MSF, |
| .procname = "igmp_max_msf", |
| .data = &sysctl_igmp_max_msf, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_INET_PEER_THRESHOLD, |
| .procname = "inet_peer_threshold", |
| .data = &inet_peer_threshold, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_INET_PEER_MINTTL, |
| .procname = "inet_peer_minttl", |
| .data = &inet_peer_minttl, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_INET_PEER_MAXTTL, |
| .procname = "inet_peer_maxttl", |
| .data = &inet_peer_maxttl, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_INET_PEER_GC_MINTIME, |
| .procname = "inet_peer_gc_mintime", |
| .data = &inet_peer_gc_mintime, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_INET_PEER_GC_MAXTIME, |
| .procname = "inet_peer_gc_maxtime", |
| .data = &inet_peer_gc_maxtime, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_TCP_ORPHAN_RETRIES, |
| .procname = "tcp_orphan_retries", |
| .data = &sysctl_tcp_orphan_retries, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_FACK, |
| .procname = "tcp_fack", |
| .data = &sysctl_tcp_fack, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_REORDERING, |
| .procname = "tcp_reordering", |
| .data = &sysctl_tcp_reordering, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_ECN, |
| .procname = "tcp_ecn", |
| .data = &sysctl_tcp_ecn, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_DSACK, |
| .procname = "tcp_dsack", |
| .data = &sysctl_tcp_dsack, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_MEM, |
| .procname = "tcp_mem", |
| .data = &sysctl_tcp_mem, |
| .maxlen = sizeof(sysctl_tcp_mem), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_WMEM, |
| .procname = "tcp_wmem", |
| .data = &sysctl_tcp_wmem, |
| .maxlen = sizeof(sysctl_tcp_wmem), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_RMEM, |
| .procname = "tcp_rmem", |
| .data = &sysctl_tcp_rmem, |
| .maxlen = sizeof(sysctl_tcp_rmem), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_APP_WIN, |
| .procname = "tcp_app_win", |
| .data = &sysctl_tcp_app_win, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_ADV_WIN_SCALE, |
| .procname = "tcp_adv_win_scale", |
| .data = &sysctl_tcp_adv_win_scale, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_ICMP_RATELIMIT, |
| .procname = "icmp_ratelimit", |
| .data = &sysctl_icmp_ratelimit, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_ICMP_RATEMASK, |
| .procname = "icmp_ratemask", |
| .data = &sysctl_icmp_ratemask, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_TW_REUSE, |
| .procname = "tcp_tw_reuse", |
| .data = &sysctl_tcp_tw_reuse, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_FRTO, |
| .procname = "tcp_frto", |
| .data = &sysctl_tcp_frto, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_TCP_LOW_LATENCY, |
| .procname = "tcp_low_latency", |
| .data = &sysctl_tcp_low_latency, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| { |
| .ctl_name = NET_IPV4_IPFRAG_SECRET_INTERVAL, |
| .procname = "ipfrag_secret_interval", |
| .data = &sysctl_ipfrag_secret_interval, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_jiffies, |
| .strategy = &sysctl_jiffies |
| }, |
| { |
| .ctl_name = NET_IPV4_IPFRAG_MAX_DIST, |
| .procname = "ipfrag_max_dist", |
| .data = &sysctl_ipfrag_max_dist, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec_minmax, |
| .extra1 = &zero |
| }, |
| { |
| .ctl_name = NET_TCP_NO_METRICS_SAVE, |
| .procname = "tcp_no_metrics_save", |
| .data = &sysctl_tcp_nometrics_save, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_TCP_MODERATE_RCVBUF, |
| .procname = "tcp_moderate_rcvbuf", |
| .data = &sysctl_tcp_moderate_rcvbuf, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_TCP_TSO_WIN_DIVISOR, |
| .procname = "tcp_tso_win_divisor", |
| .data = &sysctl_tcp_tso_win_divisor, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_TCP_CONG_CONTROL, |
| .procname = "tcp_congestion_control", |
| .mode = 0644, |
| .maxlen = TCP_CA_NAME_MAX, |
| .proc_handler = &proc_tcp_congestion_control, |
| .strategy = &sysctl_tcp_congestion_control, |
| }, |
| { |
| .ctl_name = NET_TCP_ABC, |
| .procname = "tcp_abc", |
| .data = &sysctl_tcp_abc, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_TCP_MTU_PROBING, |
| .procname = "tcp_mtu_probing", |
| .data = &sysctl_tcp_mtu_probing, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_TCP_BASE_MSS, |
| .procname = "tcp_base_mss", |
| .data = &sysctl_tcp_base_mss, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS, |
| .procname = "tcp_workaround_signed_windows", |
| .data = &sysctl_tcp_workaround_signed_windows, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| #ifdef CONFIG_NET_DMA |
| { |
| .ctl_name = NET_TCP_DMA_COPYBREAK, |
| .procname = "tcp_dma_copybreak", |
| .data = &sysctl_tcp_dma_copybreak, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| #endif |
| { |
| .ctl_name = NET_TCP_SLOW_START_AFTER_IDLE, |
| .procname = "tcp_slow_start_after_idle", |
| .data = &sysctl_tcp_slow_start_after_idle, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec |
| }, |
| #ifdef CONFIG_NETLABEL |
| { |
| .ctl_name = NET_CIPSOV4_CACHE_ENABLE, |
| .procname = "cipso_cache_enable", |
| .data = &cipso_v4_cache_enabled, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_CIPSOV4_CACHE_BUCKET_SIZE, |
| .procname = "cipso_cache_bucket_size", |
| .data = &cipso_v4_cache_bucketsize, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_CIPSOV4_RBM_OPTFMT, |
| .procname = "cipso_rbm_optfmt", |
| .data = &cipso_v4_rbm_optfmt, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| { |
| .ctl_name = NET_CIPSOV4_RBM_STRICTVALID, |
| .procname = "cipso_rbm_strictvalid", |
| .data = &cipso_v4_rbm_strictvalid, |
| .maxlen = sizeof(int), |
| .mode = 0644, |
| .proc_handler = &proc_dointvec, |
| }, |
| #endif /* CONFIG_NETLABEL */ |
| { |
| .ctl_name = NET_TCP_AVAIL_CONG_CONTROL, |
| .procname = "tcp_available_congestion_control", |
| .maxlen = TCP_CA_BUF_MAX, |
| .mode = 0444, |
| .proc_handler = &proc_tcp_available_congestion_control, |
| }, |
| { |
| .ctl_name = NET_TCP_ALLOWED_CONG_CONTROL, |
| .procname = "tcp_allowed_congestion_control", |
| .maxlen = TCP_CA_BUF_MAX, |
| .mode = 0644, |
| .proc_handler = &proc_allowed_congestion_control, |
| .strategy = &strategy_allowed_congestion_control, |
| }, |
| { .ctl_name = 0 } |
| }; |
| |
| #endif /* CONFIG_SYSCTL */ |
| |
| EXPORT_SYMBOL(ipv4_config); |