diff options
Diffstat (limited to 'release/src/linux/linux/net/ipv4/sysctl_net_ipv4.c')
| -rw-r--r-- | release/src/linux/linux/net/ipv4/sysctl_net_ipv4.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/release/src/linux/linux/net/ipv4/sysctl_net_ipv4.c b/release/src/linux/linux/net/ipv4/sysctl_net_ipv4.c new file mode 100644 index 00000000..1f4081a9 --- /dev/null +++ b/release/src/linux/linux/net/ipv4/sysctl_net_ipv4.c @@ -0,0 +1,227 @@ +/* + * sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem. + * + * $Id: sysctl_net_ipv4.c,v 1.1.1.4 2003/10/14 08:09:33 sparq Exp $ + * + * Begun April 1, 1996, Mike Shaver. + * Added /proc/sys/net/ipv4 directory entry (empty =) ). [MS] + */ + +#include <linux/mm.h> +#include <linux/sysctl.h> +#include <linux/config.h> +#include <net/snmp.h> +#include <net/ip.h> +#include <net/route.h> +#include <net/tcp.h> + +/* From af_inet.c */ +extern int sysctl_ip_nonlocal_bind; + +/* From icmp.c */ +extern int sysctl_icmp_echo_ignore_all; +extern int sysctl_icmp_echo_ignore_broadcasts; +extern int sysctl_icmp_ignore_bogus_error_responses; + +/* From ip_fragment.c */ +extern int sysctl_ipfrag_low_thresh; +extern int sysctl_ipfrag_high_thresh; +extern int sysctl_ipfrag_time; + +/* From ip_output.c */ +extern int sysctl_ip_dynaddr; + +/* From icmp.c */ +extern int sysctl_icmp_ratelimit; +extern int sysctl_icmp_ratemask; + +/* From igmp.c */ +extern int sysctl_igmp_max_memberships; + +/* From inetpeer.c */ +extern int inet_peer_threshold; +extern int inet_peer_minttl; +extern int inet_peer_maxttl; +extern int inet_peer_gc_mintime; +extern int inet_peer_gc_maxtime; + +#ifdef CONFIG_SYSCTL +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; + +extern ctl_table ipv4_route_table[]; + +#ifdef CONFIG_SYSCTL + +static +int ipv4_sysctl_forward(ctl_table *ctl, int write, struct file * filp, + void *buffer, size_t *lenp) +{ + int val = ipv4_devconf.forwarding; + int ret; + + ret = proc_dointvec(ctl, write, filp, buffer, lenp); + + if (write && ipv4_devconf.forwarding != val) + inet_forward_change(); + + return ret; +} + +static int ipv4_sysctl_forward_strategy(ctl_table *table, int *name, int nlen, + void *oldval, size_t *oldlenp, + void *newval, size_t newlen, + void **context) +{ + int new; + if (newlen != sizeof(int)) + return -EINVAL; + if (get_user(new,(int *)newval)) + return -EFAULT; + if (new != ipv4_devconf.forwarding) + inet_forward_change(); + return 0; /* caller does change again and handles handles oldval */ +} + +ctl_table ipv4_table[] = { + {NET_IPV4_TCP_TIMESTAMPS, "tcp_timestamps", + &sysctl_tcp_timestamps, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_TCP_WINDOW_SCALING, "tcp_window_scaling", + &sysctl_tcp_window_scaling, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_TCP_SACK, "tcp_sack", + &sysctl_tcp_sack, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_TCP_RETRANS_COLLAPSE, "tcp_retrans_collapse", + &sysctl_tcp_retrans_collapse, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_FORWARD, "ip_forward", + &ipv4_devconf.forwarding, sizeof(int), 0644, NULL, + &ipv4_sysctl_forward,&ipv4_sysctl_forward_strategy}, + {NET_IPV4_DEFAULT_TTL, "ip_default_ttl", + &sysctl_ip_default_ttl, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_AUTOCONFIG, "ip_autoconfig", + &ipv4_config.autoconfig, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_NO_PMTU_DISC, "ip_no_pmtu_disc", + &ipv4_config.no_pmtu_disc, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_NONLOCAL_BIND, "ip_nonlocal_bind", + &sysctl_ip_nonlocal_bind, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_TCP_SYN_RETRIES, "tcp_syn_retries", + &sysctl_tcp_syn_retries, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_SYNACK_RETRIES, "tcp_synack_retries", + &sysctl_tcp_synack_retries, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_MAX_ORPHANS, "tcp_max_orphans", + &sysctl_tcp_max_orphans, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_MAX_TW_BUCKETS, "tcp_max_tw_buckets", + &sysctl_tcp_max_tw_buckets, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_IPFRAG_HIGH_THRESH, "ipfrag_high_thresh", + &sysctl_ipfrag_high_thresh, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_IPFRAG_LOW_THRESH, "ipfrag_low_thresh", + &sysctl_ipfrag_low_thresh, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_DYNADDR, "ip_dynaddr", + &sysctl_ip_dynaddr, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_IPFRAG_TIME, "ipfrag_time", + &sysctl_ipfrag_time, sizeof(int), 0644, NULL, &proc_dointvec_jiffies, + &sysctl_jiffies}, + {NET_IPV4_TCP_KEEPALIVE_TIME, "tcp_keepalive_time", + &sysctl_tcp_keepalive_time, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, + {NET_IPV4_TCP_KEEPALIVE_PROBES, "tcp_keepalive_probes", + &sysctl_tcp_keepalive_probes, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_TCP_KEEPALIVE_INTVL, "tcp_keepalive_intvl", + &sysctl_tcp_keepalive_intvl, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, + {NET_IPV4_TCP_RETRIES1, "tcp_retries1", + &sysctl_tcp_retries1, sizeof(int), 0644, NULL, &proc_dointvec_minmax, + &sysctl_intvec, NULL, NULL, &tcp_retr1_max}, + {NET_IPV4_TCP_RETRIES2, "tcp_retries2", + &sysctl_tcp_retries2, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_TCP_FIN_TIMEOUT, "tcp_fin_timeout", + &sysctl_tcp_fin_timeout, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, +#ifdef CONFIG_SYN_COOKIES + {NET_TCP_SYNCOOKIES, "tcp_syncookies", + &sysctl_tcp_syncookies, sizeof(int), 0644, NULL, &proc_dointvec}, +#endif + {NET_TCP_TW_RECYCLE, "tcp_tw_recycle", + &sysctl_tcp_tw_recycle, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_ABORT_ON_OVERFLOW, "tcp_abort_on_overflow", + &sysctl_tcp_abort_on_overflow, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_STDURG, "tcp_stdurg", &sysctl_tcp_stdurg, + sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_RFC1337, "tcp_rfc1337", &sysctl_tcp_rfc1337, + sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_MAX_SYN_BACKLOG, "tcp_max_syn_backlog", &sysctl_max_syn_backlog, + sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_LOCAL_PORT_RANGE, "ip_local_port_range", + &sysctl_local_port_range, sizeof(sysctl_local_port_range), 0644, + NULL, &proc_dointvec_minmax, &sysctl_intvec, NULL, + ip_local_port_range_min, ip_local_port_range_max }, + {NET_IPV4_ICMP_ECHO_IGNORE_ALL, "icmp_echo_ignore_all", + &sysctl_icmp_echo_ignore_all, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS, "icmp_echo_ignore_broadcasts", + &sysctl_icmp_echo_ignore_broadcasts, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES, "icmp_ignore_bogus_error_responses", + &sysctl_icmp_ignore_bogus_error_responses, sizeof(int), 0644, NULL, + &proc_dointvec}, + {NET_IPV4_ROUTE, "route", NULL, 0, 0555, ipv4_route_table}, +#ifdef CONFIG_IP_MULTICAST + {NET_IPV4_IGMP_MAX_MEMBERSHIPS, "igmp_max_memberships", + &sysctl_igmp_max_memberships, sizeof(int), 0644, NULL, &proc_dointvec}, +#endif + {NET_IPV4_INET_PEER_THRESHOLD, "inet_peer_threshold", + &inet_peer_threshold, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_INET_PEER_MINTTL, "inet_peer_minttl", + &inet_peer_minttl, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, + {NET_IPV4_INET_PEER_MAXTTL, "inet_peer_maxttl", + &inet_peer_maxttl, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, + {NET_IPV4_INET_PEER_GC_MINTIME, "inet_peer_gc_mintime", + &inet_peer_gc_mintime, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, + {NET_IPV4_INET_PEER_GC_MAXTIME, "inet_peer_gc_maxtime", + &inet_peer_gc_maxtime, sizeof(int), 0644, NULL, + &proc_dointvec_jiffies, &sysctl_jiffies}, + {NET_TCP_ORPHAN_RETRIES, "tcp_orphan_retries", + &sysctl_tcp_orphan_retries, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_FACK, "tcp_fack", + &sysctl_tcp_fack, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_REORDERING, "tcp_reordering", + &sysctl_tcp_reordering, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_ECN, "tcp_ecn", + &sysctl_tcp_ecn, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_DSACK, "tcp_dsack", + &sysctl_tcp_dsack, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_MEM, "tcp_mem", + &sysctl_tcp_mem, sizeof(sysctl_tcp_mem), 0644, NULL, &proc_dointvec}, + {NET_TCP_WMEM, "tcp_wmem", + &sysctl_tcp_wmem, sizeof(sysctl_tcp_wmem), 0644, NULL, &proc_dointvec}, + {NET_TCP_RMEM, "tcp_rmem", + &sysctl_tcp_rmem, sizeof(sysctl_tcp_rmem), 0644, NULL, &proc_dointvec}, + {NET_TCP_APP_WIN, "tcp_app_win", + &sysctl_tcp_app_win, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_ADV_WIN_SCALE, "tcp_adv_win_scale", + &sysctl_tcp_adv_win_scale, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_ICMP_RATELIMIT, "icmp_ratelimit", + &sysctl_icmp_ratelimit, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_IPV4_ICMP_RATEMASK, "icmp_ratemask", + &sysctl_icmp_ratemask, sizeof(int), 0644, NULL, &proc_dointvec}, + {NET_TCP_TW_REUSE, "tcp_tw_reuse", + &sysctl_tcp_tw_reuse, sizeof(int), 0644, NULL, &proc_dointvec}, + {0} +}; + +#endif /* CONFIG_SYSCTL */ |