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300ec13049
linux/kernel/sysctl_check.c
Serge E. Hallyn 3b7391de67 capabilities: introduce per-process capability bounding set 
The capability bounding set is a set beyond which capabilities cannot grow.
 Currently cap_bset is per-system.  It can be manipulated through sysctl,
but only init can add capabilities.  Root can remove capabilities.  By
default it includes all caps except CAP_SETPCAP.

This patch makes the bounding set per-process when file capabilities are
enabled.  It is inherited at fork from parent.  Noone can add elements,
CAP_SETPCAP is required to remove them.

One example use of this is to start a safer container.  For instance, until
device namespaces or per-container device whitelists are introduced, it is
best to take CAP_MKNOD away from a container.

The bounding set will not affect pP and pE immediately.  It will only
affect pP' and pE' after subsequent exec()s.  It also does not affect pI,
and exec() does not constrain pI'.  So to really start a shell with no way
of regain CAP_MKNOD, you would do

	prctl(PR_CAPBSET_DROP, CAP_MKNOD);
	cap_t cap = cap_get_proc();
	cap_value_t caparray[1];
	caparray[0] = CAP_MKNOD;
	cap_set_flag(cap, CAP_INHERITABLE, 1, caparray, CAP_DROP);
	cap_set_proc(cap);
	cap_free(cap);

The following test program will get and set the bounding
set (but not pI).  For instance

	./bset get
		(lists capabilities in bset)
	./bset drop cap_net_raw
		(starts shell with new bset)
		(use capset, setuid binary, or binary with
		file capabilities to try to increase caps)

************************************************************
cap_bound.c
************************************************************
 #include <sys/prctl.h>
 #include <linux/capability.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>

 #ifndef PR_CAPBSET_READ
 #define PR_CAPBSET_READ 23
 #endif

 #ifndef PR_CAPBSET_DROP
 #define PR_CAPBSET_DROP 24
 #endif

int usage(char *me)
{
	printf("Usage: %s get\n", me);
	printf("       %s drop <capability>\n", me);
	return 1;
}

 #define numcaps 32
char *captable[numcaps] = {
	"cap_chown",
	"cap_dac_override",
	"cap_dac_read_search",
	"cap_fowner",
	"cap_fsetid",
	"cap_kill",
	"cap_setgid",
	"cap_setuid",
	"cap_setpcap",
	"cap_linux_immutable",
	"cap_net_bind_service",
	"cap_net_broadcast",
	"cap_net_admin",
	"cap_net_raw",
	"cap_ipc_lock",
	"cap_ipc_owner",
	"cap_sys_module",
	"cap_sys_rawio",
	"cap_sys_chroot",
	"cap_sys_ptrace",
	"cap_sys_pacct",
	"cap_sys_admin",
	"cap_sys_boot",
	"cap_sys_nice",
	"cap_sys_resource",
	"cap_sys_time",
	"cap_sys_tty_config",
	"cap_mknod",
	"cap_lease",
	"cap_audit_write",
	"cap_audit_control",
	"cap_setfcap"
};

int getbcap(void)
{
	int comma=0;
	unsigned long i;
	int ret;

	printf("i know of %d capabilities\n", numcaps);
	printf("capability bounding set:");
	for (i=0; i<numcaps; i++) {
		ret = prctl(PR_CAPBSET_READ, i);
		if (ret < 0)
			perror("prctl");
		else if (ret==1)
			printf("%s%s", (comma++) ? ", " : " ", captable[i]);
	}
	printf("\n");
	return 0;
}

int capdrop(char *str)
{
	unsigned long i;

	int found=0;
	for (i=0; i<numcaps; i++) {
		if (strcmp(captable[i], str) == 0) {
			found=1;
			break;
		}
	}
	if (!found)
		return 1;
	if (prctl(PR_CAPBSET_DROP, i)) {
		perror("prctl");
		return 1;
	}
	return 0;
}

int main(int argc, char *argv[])
{
	if (argc<2)
		return usage(argv[0]);
	if (strcmp(argv[1], "get")==0)
		return getbcap();
	if (strcmp(argv[1], "drop")!=0 || argc<3)
		return usage(argv[0]);
	if (capdrop(argv[2])) {
		printf("unknown capability\n");
		return 1;
	}
	return execl("/bin/bash", "/bin/bash", NULL);
}
************************************************************

[serue@us.ibm.com: fix typo]
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Casey Schaufler <casey@schaufler-ca.com>a
Signed-off-by: "Serge E. Hallyn" <serue@us.ibm.com>
Tested-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-02-05 09:44:20 -08:00

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#include <linux/stat.h>
#include <linux/sysctl.h>
#include "../fs/xfs/linux-2.6/xfs_sysctl.h"
#include <linux/sunrpc/debug.h>
#include <linux/string.h>
#include <net/ip_vs.h>
struct trans_ctl_table {
int ctl_name;
const char *procname;
struct trans_ctl_table *child;
};
static struct trans_ctl_table trans_random_table[] = {
{ RANDOM_POOLSIZE, "poolsize" },
{ RANDOM_ENTROPY_COUNT, "entropy_avail" },
{ RANDOM_READ_THRESH, "read_wakeup_threshold" },
{ RANDOM_WRITE_THRESH, "write_wakeup_threshold" },
{ RANDOM_BOOT_ID, "boot_id" },
{ RANDOM_UUID, "uuid" },
{}
};
static struct trans_ctl_table trans_pty_table[] = {
{ PTY_MAX, "max" },
{ PTY_NR, "nr" },
{}
};
static struct trans_ctl_table trans_kern_table[] = {
{ KERN_OSTYPE, "ostype" },
{ KERN_OSRELEASE, "osrelease" },
/* KERN_OSREV not used */
{ KERN_VERSION, "version" },
/* KERN_SECUREMASK not used */
/* KERN_PROF not used */
{ KERN_NODENAME, "hostname" },
{ KERN_DOMAINNAME, "domainname" },
{ KERN_PANIC, "panic" },
{ KERN_REALROOTDEV, "real-root-dev" },
{ KERN_SPARC_REBOOT, "reboot-cmd" },
{ KERN_CTLALTDEL, "ctrl-alt-del" },
{ KERN_PRINTK, "printk" },
/* KERN_NAMETRANS not used */
/* KERN_PPC_HTABRECLAIM not used */
/* KERN_PPC_ZEROPAGED not used */
{ KERN_PPC_POWERSAVE_NAP, "powersave-nap" },
{ KERN_MODPROBE, "modprobe" },
{ KERN_SG_BIG_BUFF, "sg-big-buff" },
{ KERN_ACCT, "acct" },
{ KERN_PPC_L2CR, "l2cr" },
/* KERN_RTSIGNR not used */
/* KERN_RTSIGMAX not used */
{ KERN_SHMMAX, "shmmax" },
{ KERN_MSGMAX, "msgmax" },
{ KERN_MSGMNB, "msgmnb" },
/* KERN_MSGPOOL not used*/
{ KERN_SYSRQ, "sysrq" },
{ KERN_MAX_THREADS, "threads-max" },
{ KERN_RANDOM, "random", trans_random_table },
{ KERN_SHMALL, "shmall" },
{ KERN_MSGMNI, "msgmni" },
{ KERN_SEM, "sem" },
{ KERN_SPARC_STOP_A, "stop-a" },
{ KERN_SHMMNI, "shmmni" },
{ KERN_OVERFLOWUID, "overflowuid" },
{ KERN_OVERFLOWGID, "overflowgid" },
{ KERN_HOTPLUG, "hotplug", },
{ KERN_IEEE_EMULATION_WARNINGS, "ieee_emulation_warnings" },
{ KERN_S390_USER_DEBUG_LOGGING, "userprocess_debug" },
{ KERN_CORE_USES_PID, "core_uses_pid" },
{ KERN_TAINTED, "tainted" },
{ KERN_CADPID, "cad_pid" },
{ KERN_PIDMAX, "pid_max" },
{ KERN_CORE_PATTERN, "core_pattern" },
{ KERN_PANIC_ON_OOPS, "panic_on_oops" },
{ KERN_HPPA_PWRSW, "soft-power" },
{ KERN_HPPA_UNALIGNED, "unaligned-trap" },
{ KERN_PRINTK_RATELIMIT, "printk_ratelimit" },
{ KERN_PRINTK_RATELIMIT_BURST, "printk_ratelimit_burst" },
{ KERN_PTY, "pty", trans_pty_table },
{ KERN_NGROUPS_MAX, "ngroups_max" },
{ KERN_SPARC_SCONS_PWROFF, "scons-poweroff" },
{ KERN_HZ_TIMER, "hz_timer" },
{ KERN_UNKNOWN_NMI_PANIC, "unknown_nmi_panic" },
{ KERN_BOOTLOADER_TYPE, "bootloader_type" },
{ KERN_RANDOMIZE, "randomize_va_space" },
{ KERN_SPIN_RETRY, "spin_retry" },
{ KERN_ACPI_VIDEO_FLAGS, "acpi_video_flags" },
{ KERN_IA64_UNALIGNED, "ignore-unaligned-usertrap" },
{ KERN_COMPAT_LOG, "compat-log" },
{ KERN_MAX_LOCK_DEPTH, "max_lock_depth" },
{ KERN_NMI_WATCHDOG, "nmi_watchdog" },
{ KERN_PANIC_ON_NMI, "panic_on_unrecovered_nmi" },
{}
};
static struct trans_ctl_table trans_vm_table[] = {
{ VM_OVERCOMMIT_MEMORY, "overcommit_memory" },
{ VM_PAGE_CLUSTER, "page-cluster" },
{ VM_DIRTY_BACKGROUND, "dirty_background_ratio" },
{ VM_DIRTY_RATIO, "dirty_ratio" },
{ VM_DIRTY_WB_CS, "dirty_writeback_centisecs" },
{ VM_DIRTY_EXPIRE_CS, "dirty_expire_centisecs" },
{ VM_NR_PDFLUSH_THREADS, "nr_pdflush_threads" },
{ VM_OVERCOMMIT_RATIO, "overcommit_ratio" },
/* VM_PAGEBUF unused */
{ VM_HUGETLB_PAGES, "nr_hugepages" },
{ VM_SWAPPINESS, "swappiness" },
{ VM_LOWMEM_RESERVE_RATIO, "lowmem_reserve_ratio" },
{ VM_MIN_FREE_KBYTES, "min_free_kbytes" },
{ VM_MAX_MAP_COUNT, "max_map_count" },
{ VM_LAPTOP_MODE, "laptop_mode" },
{ VM_BLOCK_DUMP, "block_dump" },
{ VM_HUGETLB_GROUP, "hugetlb_shm_group" },
{ VM_VFS_CACHE_PRESSURE, "vfs_cache_pressure" },
{ VM_LEGACY_VA_LAYOUT, "legacy_va_layout" },
/* VM_SWAP_TOKEN_TIMEOUT unused */
{ VM_DROP_PAGECACHE, "drop_caches" },
{ VM_PERCPU_PAGELIST_FRACTION, "percpu_pagelist_fraction" },
{ VM_ZONE_RECLAIM_MODE, "zone_reclaim_mode" },
{ VM_MIN_UNMAPPED, "min_unmapped_ratio" },
{ VM_PANIC_ON_OOM, "panic_on_oom" },
{ VM_VDSO_ENABLED, "vdso_enabled" },
{ VM_MIN_SLAB, "min_slab_ratio" },
{}
};
static struct trans_ctl_table trans_net_core_table[] = {
{ NET_CORE_WMEM_MAX, "wmem_max" },
{ NET_CORE_RMEM_MAX, "rmem_max" },
{ NET_CORE_WMEM_DEFAULT, "wmem_default" },
{ NET_CORE_RMEM_DEFAULT, "rmem_default" },
/* NET_CORE_DESTROY_DELAY unused */
{ NET_CORE_MAX_BACKLOG, "netdev_max_backlog" },
/* NET_CORE_FASTROUTE unused */
{ NET_CORE_MSG_COST, "message_cost" },
{ NET_CORE_MSG_BURST, "message_burst" },
{ NET_CORE_OPTMEM_MAX, "optmem_max" },
/* NET_CORE_HOT_LIST_LENGTH unused */
/* NET_CORE_DIVERT_VERSION unused */
/* NET_CORE_NO_CONG_THRESH unused */
/* NET_CORE_NO_CONG unused */
/* NET_CORE_LO_CONG unused */
/* NET_CORE_MOD_CONG unused */
{ NET_CORE_DEV_WEIGHT, "dev_weight" },
{ NET_CORE_SOMAXCONN, "somaxconn" },
{ NET_CORE_BUDGET, "netdev_budget" },
{ NET_CORE_AEVENT_ETIME, "xfrm_aevent_etime" },
{ NET_CORE_AEVENT_RSEQTH, "xfrm_aevent_rseqth" },
{ NET_CORE_WARNINGS, "warnings" },
{},
};
static struct trans_ctl_table trans_net_unix_table[] = {
/* NET_UNIX_DESTROY_DELAY unused */
/* NET_UNIX_DELETE_DELAY unused */
{ NET_UNIX_MAX_DGRAM_QLEN, "max_dgram_qlen" },
{}
};
static struct trans_ctl_table trans_net_ipv4_route_table[] = {
{ NET_IPV4_ROUTE_FLUSH, "flush" },
{ NET_IPV4_ROUTE_MIN_DELAY, "min_delay" },
{ NET_IPV4_ROUTE_MAX_DELAY, "max_delay" },
{ NET_IPV4_ROUTE_GC_THRESH, "gc_thresh" },
{ NET_IPV4_ROUTE_MAX_SIZE, "max_size" },
{ NET_IPV4_ROUTE_GC_MIN_INTERVAL, "gc_min_interval" },
{ NET_IPV4_ROUTE_GC_TIMEOUT, "gc_timeout" },
{ NET_IPV4_ROUTE_GC_INTERVAL, "gc_interval" },
{ NET_IPV4_ROUTE_REDIRECT_LOAD, "redirect_load" },
{ NET_IPV4_ROUTE_REDIRECT_NUMBER, "redirect_number" },
{ NET_IPV4_ROUTE_REDIRECT_SILENCE, "redirect_silence" },
{ NET_IPV4_ROUTE_ERROR_COST, "error_cost" },
{ NET_IPV4_ROUTE_ERROR_BURST, "error_burst" },
{ NET_IPV4_ROUTE_GC_ELASTICITY, "gc_elasticity" },
{ NET_IPV4_ROUTE_MTU_EXPIRES, "mtu_expires" },
{ NET_IPV4_ROUTE_MIN_PMTU, "min_pmtu" },
{ NET_IPV4_ROUTE_MIN_ADVMSS, "min_adv_mss" },
{ NET_IPV4_ROUTE_SECRET_INTERVAL, "secret_interval" },
{ NET_IPV4_ROUTE_GC_MIN_INTERVAL_MS, "gc_min_interval_ms" },
{}
};
static struct trans_ctl_table trans_net_ipv4_conf_vars_table[] = {
{ NET_IPV4_CONF_FORWARDING, "forwarding" },
{ NET_IPV4_CONF_MC_FORWARDING, "mc_forwarding" },
{ NET_IPV4_CONF_PROXY_ARP, "proxy_arp" },
{ NET_IPV4_CONF_ACCEPT_REDIRECTS, "accept_redirects" },
{ NET_IPV4_CONF_SECURE_REDIRECTS, "secure_redirects" },
{ NET_IPV4_CONF_SEND_REDIRECTS, "send_redirects" },
{ NET_IPV4_CONF_SHARED_MEDIA, "shared_media" },
{ NET_IPV4_CONF_RP_FILTER, "rp_filter" },
{ NET_IPV4_CONF_ACCEPT_SOURCE_ROUTE, "accept_source_route" },
{ NET_IPV4_CONF_BOOTP_RELAY, "bootp_relay" },
{ NET_IPV4_CONF_LOG_MARTIANS, "log_martians" },
{ NET_IPV4_CONF_TAG, "tag" },
{ NET_IPV4_CONF_ARPFILTER, "arp_filter" },
{ NET_IPV4_CONF_MEDIUM_ID, "medium_id" },
{ NET_IPV4_CONF_NOXFRM, "disable_xfrm" },
{ NET_IPV4_CONF_NOPOLICY, "disable_policy" },
{ NET_IPV4_CONF_FORCE_IGMP_VERSION, "force_igmp_version" },
{ NET_IPV4_CONF_ARP_ANNOUNCE, "arp_announce" },
{ NET_IPV4_CONF_ARP_IGNORE, "arp_ignore" },
{ NET_IPV4_CONF_PROMOTE_SECONDARIES, "promote_secondaries" },
{ NET_IPV4_CONF_ARP_ACCEPT, "arp_accept" },
{}
};
static struct trans_ctl_table trans_net_ipv4_conf_table[] = {
{ NET_PROTO_CONF_ALL, "all", trans_net_ipv4_conf_vars_table },
{ NET_PROTO_CONF_DEFAULT, "default", trans_net_ipv4_conf_vars_table },
{ 0, NULL, trans_net_ipv4_conf_vars_table },
{}
};
static struct trans_ctl_table trans_net_neigh_vars_table[] = {
{ NET_NEIGH_MCAST_SOLICIT, "mcast_solicit" },
{ NET_NEIGH_UCAST_SOLICIT, "ucast_solicit" },
{ NET_NEIGH_APP_SOLICIT, "app_solicit" },
{ NET_NEIGH_RETRANS_TIME, "retrans_time" },
{ NET_NEIGH_REACHABLE_TIME, "base_reachable_time" },
{ NET_NEIGH_DELAY_PROBE_TIME, "delay_first_probe_time" },
{ NET_NEIGH_GC_STALE_TIME, "gc_stale_time" },
{ NET_NEIGH_UNRES_QLEN, "unres_qlen" },
{ NET_NEIGH_PROXY_QLEN, "proxy_qlen" },
{ NET_NEIGH_ANYCAST_DELAY, "anycast_delay" },
{ NET_NEIGH_PROXY_DELAY, "proxy_delay" },
{ NET_NEIGH_LOCKTIME, "locktime" },
{ NET_NEIGH_GC_INTERVAL, "gc_interval" },
{ NET_NEIGH_GC_THRESH1, "gc_thresh1" },
{ NET_NEIGH_GC_THRESH2, "gc_thresh2" },
{ NET_NEIGH_GC_THRESH3, "gc_thresh3" },
{ NET_NEIGH_RETRANS_TIME_MS, "retrans_time_ms" },
{ NET_NEIGH_REACHABLE_TIME_MS, "base_reachable_time_ms" },
{}
};
static struct trans_ctl_table trans_net_neigh_table[] = {
{ NET_PROTO_CONF_DEFAULT, "default", trans_net_neigh_vars_table },
{ 0, NULL, trans_net_neigh_vars_table },
{}
};
static struct trans_ctl_table trans_net_ipv4_netfilter_table[] = {
{ NET_IPV4_NF_CONNTRACK_MAX, "ip_conntrack_max" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT, "ip_conntrack_tcp_timeout_syn_sent" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV, "ip_conntrack_tcp_timeout_syn_recv" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED, "ip_conntrack_tcp_timeout_established" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT, "ip_conntrack_tcp_timeout_fin_wait" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT, "ip_conntrack_tcp_timeout_close_wait" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK, "ip_conntrack_tcp_timeout_last_ack" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT, "ip_conntrack_tcp_timeout_time_wait" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_CLOSE, "ip_conntrack_tcp_timeout_close" },
{ NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT, "ip_conntrack_udp_timeout" },
{ NET_IPV4_NF_CONNTRACK_UDP_TIMEOUT_STREAM, "ip_conntrack_udp_timeout_stream" },
{ NET_IPV4_NF_CONNTRACK_ICMP_TIMEOUT, "ip_conntrack_icmp_timeout" },
{ NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT, "ip_conntrack_generic_timeout" },
{ NET_IPV4_NF_CONNTRACK_BUCKETS, "ip_conntrack_buckets" },
{ NET_IPV4_NF_CONNTRACK_LOG_INVALID, "ip_conntrack_log_invalid" },
{ NET_IPV4_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS, "ip_conntrack_tcp_timeout_max_retrans" },
{ NET_IPV4_NF_CONNTRACK_TCP_LOOSE, "ip_conntrack_tcp_loose" },
{ NET_IPV4_NF_CONNTRACK_TCP_BE_LIBERAL, "ip_conntrack_tcp_be_liberal" },
{ NET_IPV4_NF_CONNTRACK_TCP_MAX_RETRANS, "ip_conntrack_tcp_max_retrans" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED, "ip_conntrack_sctp_timeout_closed" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT, "ip_conntrack_sctp_timeout_cookie_wait" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED, "ip_conntrack_sctp_timeout_cookie_echoed" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED, "ip_conntrack_sctp_timeout_established" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT, "ip_conntrack_sctp_timeout_shutdown_sent" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD, "ip_conntrack_sctp_timeout_shutdown_recd" },
{ NET_IPV4_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT, "ip_conntrack_sctp_timeout_shutdown_ack_sent" },
{ NET_IPV4_NF_CONNTRACK_COUNT, "ip_conntrack_count" },
{ NET_IPV4_NF_CONNTRACK_CHECKSUM, "ip_conntrack_checksum" },
{}
};
static struct trans_ctl_table trans_net_ipv4_table[] = {
{ NET_IPV4_FORWARD, "ip_forward" },
{ NET_IPV4_DYNADDR, "ip_dynaddr" },
{ NET_IPV4_CONF, "conf", trans_net_ipv4_conf_table },
{ NET_IPV4_NEIGH, "neigh", trans_net_neigh_table },
{ NET_IPV4_ROUTE, "route", trans_net_ipv4_route_table },
/* NET_IPV4_FIB_HASH unused */
{ NET_IPV4_NETFILTER, "netfilter", trans_net_ipv4_netfilter_table },
{ NET_IPV4_TCP_TIMESTAMPS, "tcp_timestamps" },
{ NET_IPV4_TCP_WINDOW_SCALING, "tcp_window_scaling" },
{ NET_IPV4_TCP_SACK, "tcp_sack" },
{ NET_IPV4_TCP_RETRANS_COLLAPSE, "tcp_retrans_collapse" },
{ NET_IPV4_DEFAULT_TTL, "ip_default_ttl" },
/* NET_IPV4_AUTOCONFIG unused */
{ NET_IPV4_NO_PMTU_DISC, "ip_no_pmtu_disc" },
{ NET_IPV4_TCP_SYN_RETRIES, "tcp_syn_retries" },
{ NET_IPV4_IPFRAG_HIGH_THRESH, "ipfrag_high_thresh" },
{ NET_IPV4_IPFRAG_LOW_THRESH, "ipfrag_low_thresh" },
{ NET_IPV4_IPFRAG_TIME, "ipfrag_time" },
/* NET_IPV4_TCP_MAX_KA_PROBES unused */
{ NET_IPV4_TCP_KEEPALIVE_TIME, "tcp_keepalive_time" },
{ NET_IPV4_TCP_KEEPALIVE_PROBES, "tcp_keepalive_probes" },
{ NET_IPV4_TCP_RETRIES1, "tcp_retries1" },
{ NET_IPV4_TCP_RETRIES2, "tcp_retries2" },
{ NET_IPV4_TCP_FIN_TIMEOUT, "tcp_fin_timeout" },
/* NET_IPV4_IP_MASQ_DEBUG unused */
{ NET_TCP_SYNCOOKIES, "tcp_syncookies" },
{ NET_TCP_STDURG, "tcp_stdurg" },
{ NET_TCP_RFC1337, "tcp_rfc1337" },
/* NET_TCP_SYN_TAILDROP unused */
{ NET_TCP_MAX_SYN_BACKLOG, "tcp_max_syn_backlog" },
{ NET_IPV4_LOCAL_PORT_RANGE, "ip_local_port_range" },
{ NET_IPV4_ICMP_ECHO_IGNORE_ALL, "icmp_echo_ignore_all" },
{ NET_IPV4_ICMP_ECHO_IGNORE_BROADCASTS, "icmp_echo_ignore_broadcasts" },
/* NET_IPV4_ICMP_SOURCEQUENCH_RATE unused */
/* NET_IPV4_ICMP_DESTUNREACH_RATE unused */
/* NET_IPV4_ICMP_TIMEEXCEED_RATE unused */
/* NET_IPV4_ICMP_PARAMPROB_RATE unused */
/* NET_IPV4_ICMP_ECHOREPLY_RATE unused */
{ NET_IPV4_ICMP_IGNORE_BOGUS_ERROR_RESPONSES, "icmp_ignore_bogus_error_responses" },
{ NET_IPV4_IGMP_MAX_MEMBERSHIPS, "igmp_max_memberships" },
{ NET_TCP_TW_RECYCLE, "tcp_tw_recycle" },
/* NET_IPV4_ALWAYS_DEFRAG unused */
{ NET_IPV4_TCP_KEEPALIVE_INTVL, "tcp_keepalive_intvl" },
{ NET_IPV4_INET_PEER_THRESHOLD, "inet_peer_threshold" },
{ NET_IPV4_INET_PEER_MINTTL, "inet_peer_minttl" },
{ NET_IPV4_INET_PEER_MAXTTL, "inet_peer_maxttl" },
{ NET_IPV4_INET_PEER_GC_MINTIME, "inet_peer_gc_mintime" },
{ NET_IPV4_INET_PEER_GC_MAXTIME, "inet_peer_gc_maxtime" },
{ NET_TCP_ORPHAN_RETRIES, "tcp_orphan_retries" },
{ NET_TCP_ABORT_ON_OVERFLOW, "tcp_abort_on_overflow" },
{ NET_TCP_SYNACK_RETRIES, "tcp_synack_retries" },
{ NET_TCP_MAX_ORPHANS, "tcp_max_orphans" },
{ NET_TCP_MAX_TW_BUCKETS, "tcp_max_tw_buckets" },
{ NET_TCP_FACK, "tcp_fack" },
{ NET_TCP_REORDERING, "tcp_reordering" },
{ NET_TCP_ECN, "tcp_ecn" },
{ NET_TCP_DSACK, "tcp_dsack" },
{ NET_TCP_MEM, "tcp_mem" },
{ NET_TCP_WMEM, "tcp_wmem" },
{ NET_TCP_RMEM, "tcp_rmem" },
{ NET_TCP_APP_WIN, "tcp_app_win" },
{ NET_TCP_ADV_WIN_SCALE, "tcp_adv_win_scale" },
{ NET_IPV4_NONLOCAL_BIND, "ip_nonlocal_bind" },
{ NET_IPV4_ICMP_RATELIMIT, "icmp_ratelimit" },
{ NET_IPV4_ICMP_RATEMASK, "icmp_ratemask" },
{ NET_TCP_TW_REUSE, "tcp_tw_reuse" },
{ NET_TCP_FRTO, "tcp_frto" },
{ NET_TCP_LOW_LATENCY, "tcp_low_latency" },
{ NET_IPV4_IPFRAG_SECRET_INTERVAL, "ipfrag_secret_interval" },
{ NET_IPV4_IGMP_MAX_MSF, "igmp_max_msf" },
{ NET_TCP_NO_METRICS_SAVE, "tcp_no_metrics_save" },
/* NET_TCP_DEFAULT_WIN_SCALE unused */
{ NET_TCP_MODERATE_RCVBUF, "tcp_moderate_rcvbuf" },
{ NET_TCP_TSO_WIN_DIVISOR, "tcp_tso_win_divisor" },
/* NET_TCP_BIC_BETA unused */
{ NET_IPV4_ICMP_ERRORS_USE_INBOUND_IFADDR, "icmp_errors_use_inbound_ifaddr" },
{ NET_TCP_CONG_CONTROL, "tcp_congestion_control" },
{ NET_TCP_ABC, "tcp_abc" },
{ NET_IPV4_IPFRAG_MAX_DIST, "ipfrag_max_dist" },
{ NET_TCP_MTU_PROBING, "tcp_mtu_probing" },
{ NET_TCP_BASE_MSS, "tcp_base_mss" },
{ NET_IPV4_TCP_WORKAROUND_SIGNED_WINDOWS, "tcp_workaround_signed_windows" },
{ NET_TCP_DMA_COPYBREAK, "tcp_dma_copybreak" },
{ NET_TCP_SLOW_START_AFTER_IDLE, "tcp_slow_start_after_idle" },
{ NET_CIPSOV4_CACHE_ENABLE, "cipso_cache_enable" },
{ NET_CIPSOV4_CACHE_BUCKET_SIZE, "cipso_cache_bucket_size" },
{ NET_CIPSOV4_RBM_OPTFMT, "cipso_rbm_optfmt" },
{ NET_CIPSOV4_RBM_STRICTVALID, "cipso_rbm_strictvalid" },
{ NET_TCP_AVAIL_CONG_CONTROL, "tcp_available_congestion_control" },
{ NET_TCP_ALLOWED_CONG_CONTROL, "tcp_allowed_congestion_control" },
{ NET_TCP_MAX_SSTHRESH, "tcp_max_ssthresh" },
{ NET_TCP_FRTO_RESPONSE, "tcp_frto_response" },
{ 2088 /* NET_IPQ_QMAX */, "ip_queue_maxlen" },
{}
};
static struct trans_ctl_table trans_net_ipx_table[] = {
{ NET_IPX_PPROP_BROADCASTING, "ipx_pprop_broadcasting" },
/* NET_IPX_FORWARDING unused */
{}
};
static struct trans_ctl_table trans_net_atalk_table[] = {
{ NET_ATALK_AARP_EXPIRY_TIME, "aarp-expiry-time" },
{ NET_ATALK_AARP_TICK_TIME, "aarp-tick-time" },
{ NET_ATALK_AARP_RETRANSMIT_LIMIT, "aarp-retransmit-limit" },
{ NET_ATALK_AARP_RESOLVE_TIME, "aarp-resolve-time" },
{},
};
static struct trans_ctl_table trans_net_netrom_table[] = {
{ NET_NETROM_DEFAULT_PATH_QUALITY, "default_path_quality" },
{ NET_NETROM_OBSOLESCENCE_COUNT_INITIALISER, "obsolescence_count_initialiser" },
{ NET_NETROM_NETWORK_TTL_INITIALISER, "network_ttl_initialiser" },
{ NET_NETROM_TRANSPORT_TIMEOUT, "transport_timeout" },
{ NET_NETROM_TRANSPORT_MAXIMUM_TRIES, "transport_maximum_tries" },
{ NET_NETROM_TRANSPORT_ACKNOWLEDGE_DELAY, "transport_acknowledge_delay" },
{ NET_NETROM_TRANSPORT_BUSY_DELAY, "transport_busy_delay" },
{ NET_NETROM_TRANSPORT_REQUESTED_WINDOW_SIZE, "transport_requested_window_size" },
{ NET_NETROM_TRANSPORT_NO_ACTIVITY_TIMEOUT, "transport_no_activity_timeout" },
{ NET_NETROM_ROUTING_CONTROL, "routing_control" },
{ NET_NETROM_LINK_FAILS_COUNT, "link_fails_count" },
{ NET_NETROM_RESET, "reset" },
{}
};
static struct trans_ctl_table trans_net_ax25_param_table[] = {
{ NET_AX25_IP_DEFAULT_MODE, "ip_default_mode" },
{ NET_AX25_DEFAULT_MODE, "ax25_default_mode" },
{ NET_AX25_BACKOFF_TYPE, "backoff_type" },
{ NET_AX25_CONNECT_MODE, "connect_mode" },
{ NET_AX25_STANDARD_WINDOW, "standard_window_size" },
{ NET_AX25_EXTENDED_WINDOW, "extended_window_size" },
{ NET_AX25_T1_TIMEOUT, "t1_timeout" },
{ NET_AX25_T2_TIMEOUT, "t2_timeout" },
{ NET_AX25_T3_TIMEOUT, "t3_timeout" },
{ NET_AX25_IDLE_TIMEOUT, "idle_timeout" },
{ NET_AX25_N2, "maximum_retry_count" },
{ NET_AX25_PACLEN, "maximum_packet_length" },
{ NET_AX25_PROTOCOL, "protocol" },
{ NET_AX25_DAMA_SLAVE_TIMEOUT, "dama_slave_timeout" },
{}
};
static struct trans_ctl_table trans_net_ax25_table[] = {
{ 0, NULL, trans_net_ax25_param_table },
{}
};
static struct trans_ctl_table trans_net_bridge_table[] = {
{ NET_BRIDGE_NF_CALL_ARPTABLES, "bridge-nf-call-arptables" },
{ NET_BRIDGE_NF_CALL_IPTABLES, "bridge-nf-call-iptables" },
{ NET_BRIDGE_NF_CALL_IP6TABLES, "bridge-nf-call-ip6tables" },
{ NET_BRIDGE_NF_FILTER_VLAN_TAGGED, "bridge-nf-filter-vlan-tagged" },
{ NET_BRIDGE_NF_FILTER_PPPOE_TAGGED, "bridge-nf-filter-pppoe-tagged" },
{}
};
static struct trans_ctl_table trans_net_rose_table[] = {
{ NET_ROSE_RESTART_REQUEST_TIMEOUT, "restart_request_timeout" },
{ NET_ROSE_CALL_REQUEST_TIMEOUT, "call_request_timeout" },
{ NET_ROSE_RESET_REQUEST_TIMEOUT, "reset_request_timeout" },
{ NET_ROSE_CLEAR_REQUEST_TIMEOUT, "clear_request_timeout" },
{ NET_ROSE_ACK_HOLD_BACK_TIMEOUT, "acknowledge_hold_back_timeout" },
{ NET_ROSE_ROUTING_CONTROL, "routing_control" },
{ NET_ROSE_LINK_FAIL_TIMEOUT, "link_fail_timeout" },
{ NET_ROSE_MAX_VCS, "maximum_virtual_circuits" },
{ NET_ROSE_WINDOW_SIZE, "window_size" },
{ NET_ROSE_NO_ACTIVITY_TIMEOUT, "no_activity_timeout" },
{}
};
static struct trans_ctl_table trans_net_ipv6_conf_var_table[] = {
{ NET_IPV6_FORWARDING, "forwarding" },
{ NET_IPV6_HOP_LIMIT, "hop_limit" },
{ NET_IPV6_MTU, "mtu" },
{ NET_IPV6_ACCEPT_RA, "accept_ra" },
{ NET_IPV6_ACCEPT_REDIRECTS, "accept_redirects" },
{ NET_IPV6_AUTOCONF, "autoconf" },
{ NET_IPV6_DAD_TRANSMITS, "dad_transmits" },
{ NET_IPV6_RTR_SOLICITS, "router_solicitations" },
{ NET_IPV6_RTR_SOLICIT_INTERVAL, "router_solicitation_interval" },
{ NET_IPV6_RTR_SOLICIT_DELAY, "router_solicitation_delay" },
{ NET_IPV6_USE_TEMPADDR, "use_tempaddr" },
{ NET_IPV6_TEMP_VALID_LFT, "temp_valid_lft" },
{ NET_IPV6_TEMP_PREFERED_LFT, "temp_prefered_lft" },
{ NET_IPV6_REGEN_MAX_RETRY, "regen_max_retry" },
{ NET_IPV6_MAX_DESYNC_FACTOR, "max_desync_factor" },
{ NET_IPV6_MAX_ADDRESSES, "max_addresses" },
{ NET_IPV6_FORCE_MLD_VERSION, "force_mld_version" },
{ NET_IPV6_ACCEPT_RA_DEFRTR, "accept_ra_defrtr" },
{ NET_IPV6_ACCEPT_RA_PINFO, "accept_ra_pinfo" },
{ NET_IPV6_ACCEPT_RA_RTR_PREF, "accept_ra_rtr_pref" },
{ NET_IPV6_RTR_PROBE_INTERVAL, "router_probe_interval" },
{ NET_IPV6_ACCEPT_RA_RT_INFO_MAX_PLEN, "accept_ra_rt_info_max_plen" },
{ NET_IPV6_PROXY_NDP, "proxy_ndp" },
{ NET_IPV6_ACCEPT_SOURCE_ROUTE, "accept_source_route" },
{}
};
static struct trans_ctl_table trans_net_ipv6_conf_table[] = {
{ NET_PROTO_CONF_ALL, "all", trans_net_ipv6_conf_var_table },
{ NET_PROTO_CONF_DEFAULT, "default", trans_net_ipv6_conf_var_table },
{ 0, NULL, trans_net_ipv6_conf_var_table },
{}
};
static struct trans_ctl_table trans_net_ipv6_route_table[] = {
{ NET_IPV6_ROUTE_FLUSH, "flush" },
{ NET_IPV6_ROUTE_GC_THRESH, "gc_thresh" },
{ NET_IPV6_ROUTE_MAX_SIZE, "max_size" },
{ NET_IPV6_ROUTE_GC_MIN_INTERVAL, "gc_min_interval" },
{ NET_IPV6_ROUTE_GC_TIMEOUT, "gc_timeout" },
{ NET_IPV6_ROUTE_GC_INTERVAL, "gc_interval" },
{ NET_IPV6_ROUTE_GC_ELASTICITY, "gc_elasticity" },
{ NET_IPV6_ROUTE_MTU_EXPIRES, "mtu_expires" },
{ NET_IPV6_ROUTE_MIN_ADVMSS, "min_adv_mss" },
{ NET_IPV6_ROUTE_GC_MIN_INTERVAL_MS, "gc_min_interval_ms" },
{}
};
static struct trans_ctl_table trans_net_ipv6_icmp_table[] = {
{ NET_IPV6_ICMP_RATELIMIT, "ratelimit" },
{}
};
static struct trans_ctl_table trans_net_ipv6_table[] = {
{ NET_IPV6_CONF, "conf", trans_net_ipv6_conf_table },
{ NET_IPV6_NEIGH, "neigh", trans_net_neigh_table },
{ NET_IPV6_ROUTE, "route", trans_net_ipv6_route_table },
{ NET_IPV6_ICMP, "icmp", trans_net_ipv6_icmp_table },
{ NET_IPV6_BINDV6ONLY, "bindv6only" },
{ NET_IPV6_IP6FRAG_HIGH_THRESH, "ip6frag_high_thresh" },
{ NET_IPV6_IP6FRAG_LOW_THRESH, "ip6frag_low_thresh" },
{ NET_IPV6_IP6FRAG_TIME, "ip6frag_time" },
{ NET_IPV6_IP6FRAG_SECRET_INTERVAL, "ip6frag_secret_interval" },
{ NET_IPV6_MLD_MAX_MSF, "mld_max_msf" },
{ 2088 /* IPQ_QMAX */, "ip6_queue_maxlen" },
{}
};
static struct trans_ctl_table trans_net_x25_table[] = {
{ NET_X25_RESTART_REQUEST_TIMEOUT, "restart_request_timeout" },
{ NET_X25_CALL_REQUEST_TIMEOUT, "call_request_timeout" },
{ NET_X25_RESET_REQUEST_TIMEOUT, "reset_request_timeout" },
{ NET_X25_CLEAR_REQUEST_TIMEOUT, "clear_request_timeout" },
{ NET_X25_ACK_HOLD_BACK_TIMEOUT, "acknowledgement_hold_back_timeout" },
{ NET_X25_FORWARD, "x25_forward" },
{}
};
static struct trans_ctl_table trans_net_tr_table[] = {
{ NET_TR_RIF_TIMEOUT, "rif_timeout" },
{}
};
static struct trans_ctl_table trans_net_decnet_conf_vars[] = {
{ NET_DECNET_CONF_DEV_FORWARDING, "forwarding" },
{ NET_DECNET_CONF_DEV_PRIORITY, "priority" },
{ NET_DECNET_CONF_DEV_T2, "t2" },
{ NET_DECNET_CONF_DEV_T3, "t3" },
{}
};
static struct trans_ctl_table trans_net_decnet_conf[] = {
{ 0, NULL, trans_net_decnet_conf_vars },
{}
};
static struct trans_ctl_table trans_net_decnet_table[] = {
{ NET_DECNET_CONF, "conf", trans_net_decnet_conf },
{ NET_DECNET_NODE_ADDRESS, "node_address" },
{ NET_DECNET_NODE_NAME, "node_name" },
{ NET_DECNET_DEFAULT_DEVICE, "default_device" },
{ NET_DECNET_TIME_WAIT, "time_wait" },
{ NET_DECNET_DN_COUNT, "dn_count" },
{ NET_DECNET_DI_COUNT, "di_count" },
{ NET_DECNET_DR_COUNT, "dr_count" },
{ NET_DECNET_DST_GC_INTERVAL, "dst_gc_interval" },
{ NET_DECNET_NO_FC_MAX_CWND, "no_fc_max_cwnd" },
{ NET_DECNET_MEM, "decnet_mem" },
{ NET_DECNET_RMEM, "decnet_rmem" },
{ NET_DECNET_WMEM, "decnet_wmem" },
{ NET_DECNET_DEBUG_LEVEL, "debug" },
{}
};
static struct trans_ctl_table trans_net_sctp_table[] = {
{ NET_SCTP_RTO_INITIAL, "rto_initial" },
{ NET_SCTP_RTO_MIN, "rto_min" },
{ NET_SCTP_RTO_MAX, "rto_max" },
{ NET_SCTP_RTO_ALPHA, "rto_alpha_exp_divisor" },
{ NET_SCTP_RTO_BETA, "rto_beta_exp_divisor" },
{ NET_SCTP_VALID_COOKIE_LIFE, "valid_cookie_life" },
{ NET_SCTP_ASSOCIATION_MAX_RETRANS, "association_max_retrans" },
{ NET_SCTP_PATH_MAX_RETRANS, "path_max_retrans" },
{ NET_SCTP_MAX_INIT_RETRANSMITS, "max_init_retransmits" },
{ NET_SCTP_HB_INTERVAL, "hb_interval" },
{ NET_SCTP_PRESERVE_ENABLE, "cookie_preserve_enable" },
{ NET_SCTP_MAX_BURST, "max_burst" },
{ NET_SCTP_ADDIP_ENABLE, "addip_enable" },
{ NET_SCTP_PRSCTP_ENABLE, "prsctp_enable" },
{ NET_SCTP_SNDBUF_POLICY, "sndbuf_policy" },
{ NET_SCTP_SACK_TIMEOUT, "sack_timeout" },
{ NET_SCTP_RCVBUF_POLICY, "rcvbuf_policy" },
{}
};
static struct trans_ctl_table trans_net_llc_llc2_timeout_table[] = {
{ NET_LLC2_ACK_TIMEOUT, "ack" },
{ NET_LLC2_P_TIMEOUT, "p" },
{ NET_LLC2_REJ_TIMEOUT, "rej" },
{ NET_LLC2_BUSY_TIMEOUT, "busy" },
{}
};
static struct trans_ctl_table trans_net_llc_station_table[] = {
{ NET_LLC_STATION_ACK_TIMEOUT, "ack_timeout" },
{}
};
static struct trans_ctl_table trans_net_llc_llc2_table[] = {
{ NET_LLC2, "timeout", trans_net_llc_llc2_timeout_table },
{}
};
static struct trans_ctl_table trans_net_llc_table[] = {
{ NET_LLC2, "llc2", trans_net_llc_llc2_table },
{ NET_LLC_STATION, "station", trans_net_llc_station_table },
{}
};
static struct trans_ctl_table trans_net_netfilter_table[] = {
{ NET_NF_CONNTRACK_MAX, "nf_conntrack_max" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT, "nf_conntrack_tcp_timeout_syn_sent" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV, "nf_conntrack_tcp_timeout_syn_recv" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED, "nf_conntrack_tcp_timeout_established" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT, "nf_conntrack_tcp_timeout_fin_wait" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT, "nf_conntrack_tcp_timeout_close_wait" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK, "nf_conntrack_tcp_timeout_last_ack" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT, "nf_conntrack_tcp_timeout_time_wait" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE, "nf_conntrack_tcp_timeout_close" },
{ NET_NF_CONNTRACK_UDP_TIMEOUT, "nf_conntrack_udp_timeout" },
{ NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM, "nf_conntrack_udp_timeout_stream" },
{ NET_NF_CONNTRACK_ICMP_TIMEOUT, "nf_conntrack_icmp_timeout" },
{ NET_NF_CONNTRACK_GENERIC_TIMEOUT, "nf_conntrack_generic_timeout" },
{ NET_NF_CONNTRACK_BUCKETS, "nf_conntrack_buckets" },
{ NET_NF_CONNTRACK_LOG_INVALID, "nf_conntrack_log_invalid" },
{ NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS, "nf_conntrack_tcp_timeout_max_retrans" },
{ NET_NF_CONNTRACK_TCP_LOOSE, "nf_conntrack_tcp_loose" },
{ NET_NF_CONNTRACK_TCP_BE_LIBERAL, "nf_conntrack_tcp_be_liberal" },
{ NET_NF_CONNTRACK_TCP_MAX_RETRANS, "nf_conntrack_tcp_max_retrans" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED, "nf_conntrack_sctp_timeout_closed" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_WAIT, "nf_conntrack_sctp_timeout_cookie_wait" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_COOKIE_ECHOED, "nf_conntrack_sctp_timeout_cookie_echoed" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_ESTABLISHED, "nf_conntrack_sctp_timeout_established" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_SENT, "nf_conntrack_sctp_timeout_shutdown_sent" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_RECD, "nf_conntrack_sctp_timeout_shutdown_recd" },
{ NET_NF_CONNTRACK_SCTP_TIMEOUT_SHUTDOWN_ACK_SENT, "nf_conntrack_sctp_timeout_shutdown_ack_sent" },
{ NET_NF_CONNTRACK_COUNT, "nf_conntrack_count" },
{ NET_NF_CONNTRACK_ICMPV6_TIMEOUT, "nf_conntrack_icmpv6_timeout" },
{ NET_NF_CONNTRACK_FRAG6_TIMEOUT, "nf_conntrack_frag6_timeout" },
{ NET_NF_CONNTRACK_FRAG6_LOW_THRESH, "nf_conntrack_frag6_low_thresh" },
{ NET_NF_CONNTRACK_FRAG6_HIGH_THRESH, "nf_conntrack_frag6_high_thresh" },
{ NET_NF_CONNTRACK_CHECKSUM, "nf_conntrack_checksum" },
{}
};
static struct trans_ctl_table trans_net_dccp_table[] = {
{ NET_DCCP_DEFAULT, "default" },
{}
};
static struct trans_ctl_table trans_net_irda_table[] = {
{ NET_IRDA_DISCOVERY, "discovery" },
{ NET_IRDA_DEVNAME, "devname" },
{ NET_IRDA_DEBUG, "debug" },
{ NET_IRDA_FAST_POLL, "fast_poll_increase" },
{ NET_IRDA_DISCOVERY_SLOTS, "discovery_slots" },
{ NET_IRDA_DISCOVERY_TIMEOUT, "discovery_timeout" },
{ NET_IRDA_SLOT_TIMEOUT, "slot_timeout" },
{ NET_IRDA_MAX_BAUD_RATE, "max_baud_rate" },
{ NET_IRDA_MIN_TX_TURN_TIME, "min_tx_turn_time" },
{ NET_IRDA_MAX_TX_DATA_SIZE, "max_tx_data_size" },
{ NET_IRDA_MAX_TX_WINDOW, "max_tx_window" },
{ NET_IRDA_MAX_NOREPLY_TIME, "max_noreply_time" },
{ NET_IRDA_WARN_NOREPLY_TIME, "warn_noreply_time" },
{ NET_IRDA_LAP_KEEPALIVE_TIME, "lap_keepalive_time" },
{}
};
static struct trans_ctl_table trans_net_table[] = {
{ NET_CORE, "core", trans_net_core_table },
/* NET_ETHER not used */
/* NET_802 not used */
{ NET_UNIX, "unix", trans_net_unix_table },
{ NET_IPV4, "ipv4", trans_net_ipv4_table },
{ NET_IPX, "ipx", trans_net_ipx_table },
{ NET_ATALK, "appletalk", trans_net_atalk_table },
{ NET_NETROM, "netrom", trans_net_netrom_table },
{ NET_AX25, "ax25", trans_net_ax25_table },
{ NET_BRIDGE, "bridge", trans_net_bridge_table },
{ NET_ROSE, "rose", trans_net_rose_table },
{ NET_IPV6, "ipv6", trans_net_ipv6_table },
{ NET_X25, "x25", trans_net_x25_table },
{ NET_TR, "token-ring", trans_net_tr_table },
{ NET_DECNET, "decnet", trans_net_decnet_table },
/* NET_ECONET not used */
{ NET_SCTP, "sctp", trans_net_sctp_table },
{ NET_LLC, "llc", trans_net_llc_table },
{ NET_NETFILTER, "netfilter", trans_net_netfilter_table },
{ NET_DCCP, "dccp", trans_net_dccp_table },
{ NET_IRDA, "irda", trans_net_irda_table },
{ 2089, "nf_conntrack_max" },
{}
};
static struct trans_ctl_table trans_fs_quota_table[] = {
{ FS_DQ_LOOKUPS, "lookups" },
{ FS_DQ_DROPS, "drops" },
{ FS_DQ_READS, "reads" },
{ FS_DQ_WRITES, "writes" },
{ FS_DQ_CACHE_HITS, "cache_hits" },
{ FS_DQ_ALLOCATED, "allocated_dquots" },
{ FS_DQ_FREE, "free_dquots" },
{ FS_DQ_SYNCS, "syncs" },
{ FS_DQ_WARNINGS, "warnings" },
{}
};
static struct trans_ctl_table trans_fs_xfs_table[] = {
{ XFS_RESTRICT_CHOWN, "restrict_chown" },
{ XFS_SGID_INHERIT, "irix_sgid_inherit" },
{ XFS_SYMLINK_MODE, "irix_symlink_mode" },
{ XFS_PANIC_MASK, "panic_mask" },
{ XFS_ERRLEVEL, "error_level" },
{ XFS_SYNCD_TIMER, "xfssyncd_centisecs" },
{ XFS_INHERIT_SYNC, "inherit_sync" },
{ XFS_INHERIT_NODUMP, "inherit_nodump" },
{ XFS_INHERIT_NOATIME, "inherit_noatime" },
{ XFS_BUF_TIMER, "xfsbufd_centisecs" },
{ XFS_BUF_AGE, "age_buffer_centisecs" },
{ XFS_INHERIT_NOSYM, "inherit_nosymlinks" },
{ XFS_ROTORSTEP, "rotorstep" },
{ XFS_INHERIT_NODFRG, "inherit_nodefrag" },
{ XFS_FILESTREAM_TIMER, "filestream_centisecs" },
{ XFS_STATS_CLEAR, "stats_clear" },
{}
};
static struct trans_ctl_table trans_fs_ocfs2_nm_table[] = {
{ 1, "hb_ctl_path" },
{}
};
static struct trans_ctl_table trans_fs_ocfs2_table[] = {
{ 1, "nm", trans_fs_ocfs2_nm_table },
{}
};
static struct trans_ctl_table trans_inotify_table[] = {
{ INOTIFY_MAX_USER_INSTANCES, "max_user_instances" },
{ INOTIFY_MAX_USER_WATCHES, "max_user_watches" },
{ INOTIFY_MAX_QUEUED_EVENTS, "max_queued_events" },
{}
};
static struct trans_ctl_table trans_fs_table[] = {
{ FS_NRINODE, "inode-nr" },
{ FS_STATINODE, "inode-state" },
/* FS_MAXINODE unused */
/* FS_NRDQUOT unused */
/* FS_MAXDQUOT unused */
{ FS_NRFILE, "file-nr" },
{ FS_MAXFILE, "file-max" },
{ FS_DENTRY, "dentry-state" },
/* FS_NRSUPER unused */
/* FS_MAXUPSER unused */
{ FS_OVERFLOWUID, "overflowuid" },
{ FS_OVERFLOWGID, "overflowgid" },
{ FS_LEASES, "leases-enable" },
{ FS_DIR_NOTIFY, "dir-notify-enable" },
{ FS_LEASE_TIME, "lease-break-time" },
{ FS_DQSTATS, "quota", trans_fs_quota_table },
{ FS_XFS, "xfs", trans_fs_xfs_table },
{ FS_AIO_NR, "aio-nr" },
{ FS_AIO_MAX_NR, "aio-max-nr" },
{ FS_INOTIFY, "inotify", trans_inotify_table },
{ FS_OCFS2, "ocfs2", trans_fs_ocfs2_table },
{ KERN_SETUID_DUMPABLE, "suid_dumpable" },
{}
};
static struct trans_ctl_table trans_debug_table[] = {
{}
};
static struct trans_ctl_table trans_cdrom_table[] = {
{ DEV_CDROM_INFO, "info" },
{ DEV_CDROM_AUTOCLOSE, "autoclose" },
{ DEV_CDROM_AUTOEJECT, "autoeject" },
{ DEV_CDROM_DEBUG, "debug" },
{ DEV_CDROM_LOCK, "lock" },
{ DEV_CDROM_CHECK_MEDIA, "check_media" },
{}
};
static struct trans_ctl_table trans_ipmi_table[] = {
{ DEV_IPMI_POWEROFF_POWERCYCLE, "poweroff_powercycle" },
{}
};
static struct trans_ctl_table trans_mac_hid_files[] = {
/* DEV_MAC_HID_KEYBOARD_SENDS_LINUX_KEYCODES unused */
/* DEV_MAC_HID_KEYBOARD_LOCK_KEYCODES unused */
{ DEV_MAC_HID_MOUSE_BUTTON_EMULATION, "mouse_button_emulation" },
{ DEV_MAC_HID_MOUSE_BUTTON2_KEYCODE, "mouse_button2_keycode" },
{ DEV_MAC_HID_MOUSE_BUTTON3_KEYCODE, "mouse_button3_keycode" },
/* DEV_MAC_HID_ADB_MOUSE_SENDS_KEYCODES unused */
{}
};
static struct trans_ctl_table trans_raid_table[] = {
{ DEV_RAID_SPEED_LIMIT_MIN, "speed_limit_min" },
{ DEV_RAID_SPEED_LIMIT_MAX, "speed_limit_max" },
{}
};
static struct trans_ctl_table trans_scsi_table[] = {
{ DEV_SCSI_LOGGING_LEVEL, "logging_level" },
{}
};
static struct trans_ctl_table trans_parport_default_table[] = {
{ DEV_PARPORT_DEFAULT_TIMESLICE, "timeslice" },
{ DEV_PARPORT_DEFAULT_SPINTIME, "spintime" },
{}
};
static struct trans_ctl_table trans_parport_device_table[] = {
{ DEV_PARPORT_DEVICE_TIMESLICE, "timeslice" },
{}
};
static struct trans_ctl_table trans_parport_devices_table[] = {
{ DEV_PARPORT_DEVICES_ACTIVE, "active" },
{ 0, NULL, trans_parport_device_table },
{}
};
static struct trans_ctl_table trans_parport_parport_table[] = {
{ DEV_PARPORT_SPINTIME, "spintime" },
{ DEV_PARPORT_BASE_ADDR, "base-addr" },
{ DEV_PARPORT_IRQ, "irq" },
{ DEV_PARPORT_DMA, "dma" },
{ DEV_PARPORT_MODES, "modes" },
{ DEV_PARPORT_DEVICES, "devices", trans_parport_devices_table },
{ DEV_PARPORT_AUTOPROBE, "autoprobe" },
{ DEV_PARPORT_AUTOPROBE + 1, "autoprobe0" },
{ DEV_PARPORT_AUTOPROBE + 2, "autoprobe1" },
{ DEV_PARPORT_AUTOPROBE + 3, "autoprobe2" },
{ DEV_PARPORT_AUTOPROBE + 4, "autoprobe3" },
{}
};
static struct trans_ctl_table trans_parport_table[] = {
{ DEV_PARPORT_DEFAULT, "default", trans_parport_default_table },
{ 0, NULL, trans_parport_parport_table },
{}
};
static struct trans_ctl_table trans_dev_table[] = {
{ DEV_CDROM, "cdrom", trans_cdrom_table },
/* DEV_HWMON unused */
{ DEV_PARPORT, "parport", trans_parport_table },
{ DEV_RAID, "raid", trans_raid_table },
{ DEV_MAC_HID, "mac_hid", trans_mac_hid_files },
{ DEV_SCSI, "scsi", trans_scsi_table },
{ DEV_IPMI, "ipmi", trans_ipmi_table },
{}
};
static struct trans_ctl_table trans_bus_isa_table[] = {
{ BUS_ISA_MEM_BASE, "membase" },
{ BUS_ISA_PORT_BASE, "portbase" },
{ BUS_ISA_PORT_SHIFT, "portshift" },
{}
};
static struct trans_ctl_table trans_bus_table[] = {
{ CTL_BUS_ISA, "isa", trans_bus_isa_table },
{}
};
static struct trans_ctl_table trans_arlan_conf_table0[] = {
{ 1, "spreadingCode" },
{ 2, "channelNumber" },
{ 3, "scramblingDisable" },
{ 4, "txAttenuation" },
{ 5, "systemId" },
{ 6, "maxDatagramSize" },
{ 7, "maxFrameSize" },
{ 8, "maxRetries" },
{ 9, "receiveMode" },
{ 10, "priority" },
{ 11, "rootOrRepeater" },
{ 12, "SID" },
{ 13, "registrationMode" },
{ 14, "registrationFill" },
{ 15, "localTalkAddress" },
{ 16, "codeFormat" },
{ 17, "numChannels" },
{ 18, "channel1" },
{ 19, "channel2" },
{ 20, "channel3" },
{ 21, "channel4" },
{ 22, "txClear" },
{ 23, "txRetries" },
{ 24, "txRouting" },
{ 25, "txScrambled" },
{ 26, "rxParameter" },
{ 27, "txTimeoutMs" },
{ 28, "waitCardTimeout" },
{ 29, "channelSet" },
{ 30, "name" },
{ 31, "waitTime" },
{ 32, "lParameter" },
{ 33, "_15" },
{ 34, "headerSize" },
{ 36, "tx_delay_ms" },
{ 37, "retries" },
{ 38, "ReTransmitPacketMaxSize" },
{ 39, "waitReTransmitPacketMaxSize" },
{ 40, "fastReTransCount" },
{ 41, "driverRetransmissions" },
{ 42, "txAckTimeoutMs" },
{ 43, "registrationInterrupts" },
{ 44, "hardwareType" },
{ 45, "radioType" },
{ 46, "writeEEPROM" },
{ 47, "writeRadioType" },
{ 48, "entry_exit_debug" },
{ 49, "debug" },
{ 50, "in_speed" },
{ 51, "out_speed" },
{ 52, "in_speed10" },
{ 53, "out_speed10" },
{ 54, "in_speed_max" },
{ 55, "out_speed_max" },
{ 56, "measure_rate" },
{ 57, "pre_Command_Wait" },
{ 58, "rx_tweak1" },
{ 59, "rx_tweak2" },
{ 60, "tx_queue_len" },
{ 150, "arlan0-txRing" },
{ 151, "arlan0-rxRing" },
{ 152, "arlan0-18" },
{ 153, "arlan0-ring" },
{ 154, "arlan0-shm-cpy" },
{ 155, "config0" },
{ 156, "reset0" },
{}
};
static struct trans_ctl_table trans_arlan_conf_table1[] = {
{ 1, "spreadingCode" },
{ 2, "channelNumber" },
{ 3, "scramblingDisable" },
{ 4, "txAttenuation" },
{ 5, "systemId" },
{ 6, "maxDatagramSize" },
{ 7, "maxFrameSize" },
{ 8, "maxRetries" },
{ 9, "receiveMode" },
{ 10, "priority" },
{ 11, "rootOrRepeater" },
{ 12, "SID" },
{ 13, "registrationMode" },
{ 14, "registrationFill" },
{ 15, "localTalkAddress" },
{ 16, "codeFormat" },
{ 17, "numChannels" },
{ 18, "channel1" },
{ 19, "channel2" },
{ 20, "channel3" },
{ 21, "channel4" },
{ 22, "txClear" },
{ 23, "txRetries" },
{ 24, "txRouting" },
{ 25, "txScrambled" },
{ 26, "rxParameter" },
{ 27, "txTimeoutMs" },
{ 28, "waitCardTimeout" },
{ 29, "channelSet" },
{ 30, "name" },
{ 31, "waitTime" },
{ 32, "lParameter" },
{ 33, "_15" },
{ 34, "headerSize" },
{ 36, "tx_delay_ms" },
{ 37, "retries" },
{ 38, "ReTransmitPacketMaxSize" },
{ 39, "waitReTransmitPacketMaxSize" },
{ 40, "fastReTransCount" },
{ 41, "driverRetransmissions" },
{ 42, "txAckTimeoutMs" },
{ 43, "registrationInterrupts" },
{ 44, "hardwareType" },
{ 45, "radioType" },
{ 46, "writeEEPROM" },
{ 47, "writeRadioType" },
{ 48, "entry_exit_debug" },
{ 49, "debug" },
{ 50, "in_speed" },
{ 51, "out_speed" },
{ 52, "in_speed10" },
{ 53, "out_speed10" },
{ 54, "in_speed_max" },
{ 55, "out_speed_max" },
{ 56, "measure_rate" },
{ 57, "pre_Command_Wait" },
{ 58, "rx_tweak1" },
{ 59, "rx_tweak2" },
{ 60, "tx_queue_len" },
{ 150, "arlan1-txRing" },
{ 151, "arlan1-rxRing" },
{ 152, "arlan1-18" },
{ 153, "arlan1-ring" },
{ 154, "arlan1-shm-cpy" },
{ 155, "config1" },
{ 156, "reset1" },
{}
};
static struct trans_ctl_table trans_arlan_conf_table2[] = {
{ 1, "spreadingCode" },
{ 2, "channelNumber" },
{ 3, "scramblingDisable" },
{ 4, "txAttenuation" },
{ 5, "systemId" },
{ 6, "maxDatagramSize" },
{ 7, "maxFrameSize" },
{ 8, "maxRetries" },
{ 9, "receiveMode" },
{ 10, "priority" },
{ 11, "rootOrRepeater" },
{ 12, "SID" },
{ 13, "registrationMode" },
{ 14, "registrationFill" },
{ 15, "localTalkAddress" },
{ 16, "codeFormat" },
{ 17, "numChannels" },
{ 18, "channel1" },
{ 19, "channel2" },
{ 20, "channel3" },
{ 21, "channel4" },
{ 22, "txClear" },
{ 23, "txRetries" },
{ 24, "txRouting" },
{ 25, "txScrambled" },
{ 26, "rxParameter" },
{ 27, "txTimeoutMs" },
{ 28, "waitCardTimeout" },
{ 29, "channelSet" },
{ 30, "name" },
{ 31, "waitTime" },
{ 32, "lParameter" },
{ 33, "_15" },
{ 34, "headerSize" },
{ 36, "tx_delay_ms" },
{ 37, "retries" },
{ 38, "ReTransmitPacketMaxSize" },
{ 39, "waitReTransmitPacketMaxSize" },
{ 40, "fastReTransCount" },
{ 41, "driverRetransmissions" },
{ 42, "txAckTimeoutMs" },
{ 43, "registrationInterrupts" },
{ 44, "hardwareType" },
{ 45, "radioType" },
{ 46, "writeEEPROM" },
{ 47, "writeRadioType" },
{ 48, "entry_exit_debug" },
{ 49, "debug" },
{ 50, "in_speed" },
{ 51, "out_speed" },
{ 52, "in_speed10" },
{ 53, "out_speed10" },
{ 54, "in_speed_max" },
{ 55, "out_speed_max" },
{ 56, "measure_rate" },
{ 57, "pre_Command_Wait" },
{ 58, "rx_tweak1" },
{ 59, "rx_tweak2" },
{ 60, "tx_queue_len" },
{ 150, "arlan2-txRing" },
{ 151, "arlan2-rxRing" },
{ 152, "arlan2-18" },
{ 153, "arlan2-ring" },
{ 154, "arlan2-shm-cpy" },
{ 155, "config2" },
{ 156, "reset2" },
{}
};
static struct trans_ctl_table trans_arlan_conf_table3[] = {
{ 1, "spreadingCode" },
{ 2, "channelNumber" },
{ 3, "scramblingDisable" },
{ 4, "txAttenuation" },
{ 5, "systemId" },
{ 6, "maxDatagramSize" },
{ 7, "maxFrameSize" },
{ 8, "maxRetries" },
{ 9, "receiveMode" },
{ 10, "priority" },
{ 11, "rootOrRepeater" },
{ 12, "SID" },
{ 13, "registrationMode" },
{ 14, "registrationFill" },
{ 15, "localTalkAddress" },
{ 16, "codeFormat" },
{ 17, "numChannels" },
{ 18, "channel1" },
{ 19, "channel2" },
{ 20, "channel3" },
{ 21, "channel4" },
{ 22, "txClear" },
{ 23, "txRetries" },
{ 24, "txRouting" },
{ 25, "txScrambled" },
{ 26, "rxParameter" },
{ 27, "txTimeoutMs" },
{ 28, "waitCardTimeout" },
{ 29, "channelSet" },
{ 30, "name" },
{ 31, "waitTime" },
{ 32, "lParameter" },
{ 33, "_15" },
{ 34, "headerSize" },
{ 36, "tx_delay_ms" },
{ 37, "retries" },
{ 38, "ReTransmitPacketMaxSize" },
{ 39, "waitReTransmitPacketMaxSize" },
{ 40, "fastReTransCount" },
{ 41, "driverRetransmissions" },
{ 42, "txAckTimeoutMs" },
{ 43, "registrationInterrupts" },
{ 44, "hardwareType" },
{ 45, "radioType" },
{ 46, "writeEEPROM" },
{ 47, "writeRadioType" },
{ 48, "entry_exit_debug" },
{ 49, "debug" },
{ 50, "in_speed" },
{ 51, "out_speed" },
{ 52, "in_speed10" },
{ 53, "out_speed10" },
{ 54, "in_speed_max" },
{ 55, "out_speed_max" },
{ 56, "measure_rate" },
{ 57, "pre_Command_Wait" },
{ 58, "rx_tweak1" },
{ 59, "rx_tweak2" },
{ 60, "tx_queue_len" },
{ 150, "arlan3-txRing" },
{ 151, "arlan3-rxRing" },
{ 152, "arlan3-18" },
{ 153, "arlan3-ring" },
{ 154, "arlan3-shm-cpy" },
{ 155, "config3" },
{ 156, "reset3" },
{}
};
static struct trans_ctl_table trans_arlan_table[] = {
{ 1, "arlan0", trans_arlan_conf_table0 },
{ 2, "arlan1", trans_arlan_conf_table1 },
{ 3, "arlan2", trans_arlan_conf_table2 },
{ 4, "arlan3", trans_arlan_conf_table3 },
{}
};
static struct trans_ctl_table trans_s390dbf_table[] = {
{ 5678 /* CTL_S390DBF_STOPPABLE */, "debug_stoppable" },
{ 5679 /* CTL_S390DBF_ACTIVE */, "debug_active" },
{}
};
static struct trans_ctl_table trans_sunrpc_table[] = {
{ CTL_RPCDEBUG, "rpc_debug" },
{ CTL_NFSDEBUG, "nfs_debug" },
{ CTL_NFSDDEBUG, "nfsd_debug" },
{ CTL_NLMDEBUG, "nlm_debug" },
{ CTL_SLOTTABLE_UDP, "udp_slot_table_entries" },
{ CTL_SLOTTABLE_TCP, "tcp_slot_table_entries" },
{ CTL_MIN_RESVPORT, "min_resvport" },
{ CTL_MAX_RESVPORT, "max_resvport" },
{}
};
static struct trans_ctl_table trans_pm_table[] = {
{ 1 /* CTL_PM_SUSPEND */, "suspend" },
{ 2 /* CTL_PM_CMODE */, "cmode" },
{ 3 /* CTL_PM_P0 */, "p0" },
{ 4 /* CTL_PM_CM */, "cm" },
{}
};
static struct trans_ctl_table trans_frv_table[] = {
{ 1, "cache-mode" },
{ 2, "pin-cxnr" },
{}
};
static struct trans_ctl_table trans_root_table[] = {
{ CTL_KERN, "kernel", trans_kern_table },
{ CTL_VM, "vm", trans_vm_table },
{ CTL_NET, "net", trans_net_table },
/* CTL_PROC not used */
{ CTL_FS, "fs", trans_fs_table },
{ CTL_DEBUG, "debug", trans_debug_table },
{ CTL_DEV, "dev", trans_dev_table },
{ CTL_BUS, "bus", trans_bus_table },
{ CTL_ABI, "abi" },
/* CTL_CPU not used */
{ CTL_ARLAN, "arlan", trans_arlan_table },
{ CTL_S390DBF, "s390dbf", trans_s390dbf_table },
{ CTL_SUNRPC, "sunrpc", trans_sunrpc_table },
{ CTL_PM, "pm", trans_pm_table },
{ CTL_FRV, "frv", trans_frv_table },
{}
};
static int sysctl_depth(struct ctl_table *table)
{
struct ctl_table *tmp;
int depth;
depth = 0;
for (tmp = table; tmp->parent; tmp = tmp->parent)
depth++;
return depth;
}
static struct ctl_table *sysctl_parent(struct ctl_table *table, int n)
{
int i;
for (i = 0; table && i < n; i++)
table = table->parent;
return table;
}
static struct trans_ctl_table *sysctl_binary_lookup(struct ctl_table *table)
{
struct ctl_table *test;
struct trans_ctl_table *ref;
int depth, cur_depth;
depth = sysctl_depth(table);
cur_depth = depth;
ref = trans_root_table;
repeat:
test = sysctl_parent(table, cur_depth);
for (; ref->ctl_name || ref->procname || ref->child; ref++) {
int match = 0;
if (cur_depth && !ref->child)
continue;
if (test->procname && ref->procname &&
(strcmp(test->procname, ref->procname) == 0))
match++;
if (test->ctl_name && ref->ctl_name &&
(test->ctl_name == ref->ctl_name))
match++;
if (!ref->ctl_name && !ref->procname)
match++;
if (match) {
if (cur_depth != 0) {
cur_depth--;
ref = ref->child;
goto repeat;
}
goto out;
}
}
ref = NULL;
out:
return ref;
}
static void sysctl_print_path(struct ctl_table *table)
{
struct ctl_table *tmp;
int depth, i;
depth = sysctl_depth(table);
if (table->procname) {
for (i = depth; i >= 0; i--) {
tmp = sysctl_parent(table, i);
printk("/%s", tmp->procname?tmp->procname:"");
}
}
printk(" ");
if (table->ctl_name) {
for (i = depth; i >= 0; i--) {
tmp = sysctl_parent(table, i);
printk(".%d", tmp->ctl_name);
}
}
}
static void sysctl_repair_table(struct ctl_table *table)
{
/* Don't complain about the classic default
* sysctl strategy routine. Maybe later we
* can get the tables fixed and complain about
* this.
*/
if (table->ctl_name && table->procname &&
(table->proc_handler == proc_dointvec) &&
(!table->strategy)) {
table->strategy = sysctl_data;
}
}
static struct ctl_table *sysctl_check_lookup(struct nsproxy *namespaces,
struct ctl_table *table)
{
struct ctl_table_header *head;
struct ctl_table *ref, *test;
int depth, cur_depth;
depth = sysctl_depth(table);
for (head = __sysctl_head_next(namespaces, NULL); head;
head = __sysctl_head_next(namespaces, head)) {
cur_depth = depth;
ref = head->ctl_table;
repeat:
test = sysctl_parent(table, cur_depth);
for (; ref->ctl_name || ref->procname; ref++) {
int match = 0;
if (cur_depth && !ref->child)
continue;
if (test->procname && ref->procname &&
(strcmp(test->procname, ref->procname) == 0))
match++;
if (test->ctl_name && ref->ctl_name &&
(test->ctl_name == ref->ctl_name))
match++;
if (match) {
if (cur_depth != 0) {
cur_depth--;
ref = ref->child;
goto repeat;
}
goto out;
}
}
}
ref = NULL;
out:
sysctl_head_finish(head);
return ref;
}
static void set_fail(const char **fail, struct ctl_table *table, const char *str)
{
if (*fail) {
printk(KERN_ERR "sysctl table check failed: ");
sysctl_print_path(table);
printk(" %s\n", *fail);
dump_stack();
}
*fail = str;
}
static int sysctl_check_dir(struct nsproxy *namespaces,
struct ctl_table *table)
{
struct ctl_table *ref;
int error;
error = 0;
ref = sysctl_check_lookup(namespaces, table);
if (ref) {
int match = 0;
if ((!table->procname && !ref->procname) ||
(table->procname && ref->procname &&
(strcmp(table->procname, ref->procname) == 0)))
match++;
if ((!table->ctl_name && !ref->ctl_name) ||
(table->ctl_name && ref->ctl_name &&
(table->ctl_name == ref->ctl_name)))
match++;
if (match != 2) {
printk(KERN_ERR "%s: failed: ", __func__);
sysctl_print_path(table);
printk(" ref: ");
sysctl_print_path(ref);
printk("\n");
error = -EINVAL;
}
}
return error;
}
static void sysctl_check_leaf(struct nsproxy *namespaces,
struct ctl_table *table, const char **fail)
{
struct ctl_table *ref;
ref = sysctl_check_lookup(namespaces, table);
if (ref && (ref != table))
set_fail(fail, table, "Sysctl already exists");
}
static void sysctl_check_bin_path(struct ctl_table *table, const char **fail)
{
struct trans_ctl_table *ref;
ref = sysctl_binary_lookup(table);
if (table->ctl_name && !ref)
set_fail(fail, table, "Unknown sysctl binary path");
if (ref) {
if (ref->procname &&
(!table->procname ||
(strcmp(table->procname, ref->procname) != 0)))
set_fail(fail, table, "procname does not match binary path procname");
if (ref->ctl_name && table->ctl_name &&
(table->ctl_name != ref->ctl_name))
set_fail(fail, table, "ctl_name does not match binary path ctl_name");
}
}
int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table)
{
int error = 0;
for (; table->ctl_name || table->procname; table++) {
const char *fail = NULL;
sysctl_repair_table(table);
if (table->parent) {
if (table->procname && !table->parent->procname)
set_fail(&fail, table, "Parent without procname");
if (table->ctl_name && !table->parent->ctl_name)
set_fail(&fail, table, "Parent without ctl_name");
}
if (!table->procname)
set_fail(&fail, table, "No procname");
if (table->child) {
if (table->data)
set_fail(&fail, table, "Directory with data?");
if (table->maxlen)
set_fail(&fail, table, "Directory with maxlen?");
if ((table->mode & (S_IRUGO|S_IXUGO)) != table->mode)
set_fail(&fail, table, "Writable sysctl directory");
if (table->proc_handler)
set_fail(&fail, table, "Directory with proc_handler");
if (table->strategy)
set_fail(&fail, table, "Directory with strategy");
if (table->extra1)
set_fail(&fail, table, "Directory with extra1");
if (table->extra2)
set_fail(&fail, table, "Directory with extra2");
if (sysctl_check_dir(namespaces, table))
set_fail(&fail, table, "Inconsistent directory names");
} else {
if ((table->strategy == sysctl_data) ||
(table->strategy == sysctl_string) ||
(table->strategy == sysctl_intvec) ||
(table->strategy == sysctl_jiffies) ||
(table->strategy == sysctl_ms_jiffies) ||
(table->proc_handler == proc_dostring) ||
(table->proc_handler == proc_dointvec) ||
(table->proc_handler == proc_dointvec_minmax) ||
(table->proc_handler == proc_dointvec_jiffies) ||
(table->proc_handler == proc_dointvec_userhz_jiffies) ||
(table->proc_handler == proc_dointvec_ms_jiffies) ||
(table->proc_handler == proc_doulongvec_minmax) ||
(table->proc_handler == proc_doulongvec_ms_jiffies_minmax)) {
if (!table->data)
set_fail(&fail, table, "No data");
if (!table->maxlen)
set_fail(&fail, table, "No maxlen");
}
if ((table->proc_handler == proc_doulongvec_minmax) ||
(table->proc_handler == proc_doulongvec_ms_jiffies_minmax)) {
if (table->maxlen > sizeof (unsigned long)) {
if (!table->extra1)
set_fail(&fail, table, "No min");
if (!table->extra2)
set_fail(&fail, table, "No max");
}
}
#ifdef CONFIG_SYSCTL_SYSCALL
if (table->ctl_name && !table->strategy)
set_fail(&fail, table, "Missing strategy");
#endif
#if 0
if (!table->ctl_name && table->strategy)
set_fail(&fail, table, "Strategy without ctl_name");
#endif
#ifdef CONFIG_PROC_FS
if (table->procname && !table->proc_handler)
set_fail(&fail, table, "No proc_handler");
#endif
#if 0
if (!table->procname && table->proc_handler)
set_fail(&fail, table, "proc_handler without procname");
#endif
sysctl_check_leaf(namespaces, table, &fail);
}
sysctl_check_bin_path(table, &fail);
if (fail) {
set_fail(&fail, table, NULL);
error = -EINVAL;
}
if (table->child)
error |= sysctl_check_table(namespaces, table->child);
}
return error;
}
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