diff options
Diffstat (limited to 'net/ipv6/proc.c')
| -rw-r--r-- | net/ipv6/proc.c | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c new file mode 100644 index 0000000..334a596 --- /dev/null +++ b/net/ipv6/proc.c @@ -0,0 +1,303 @@ +/* + * INET An implementation of the TCP/IP protocol suite for the LINUX + * operating system. INET is implemented using the BSD Socket + * interface as the means of communication with the user level. + * + * This file implements the various access functions for the + * PROC file system. This is very similar to the IPv4 version, + * except it reports the sockets in the INET6 address family. + * + * Version: $Id: proc.c,v 1.17 2002/02/01 22:01:04 davem Exp $ + * + * Authors: David S. Miller (davem@caip.rutgers.edu) + * YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#include <linux/config.h> +#include <linux/sched.h> +#include <linux/socket.h> +#include <linux/net.h> +#include <linux/ipv6.h> +#include <linux/proc_fs.h> +#include <linux/seq_file.h> +#include <linux/stddef.h> +#include <net/sock.h> +#include <net/tcp.h> +#include <net/transp_v6.h> +#include <net/ipv6.h> + +#ifdef CONFIG_PROC_FS +static struct proc_dir_entry *proc_net_devsnmp6; + +static int fold_prot_inuse(struct proto *proto) +{ + int res = 0; + int cpu; + + for (cpu=0; cpu<NR_CPUS; cpu++) + res += proto->stats[cpu].inuse; + + return res; +} + +static int sockstat6_seq_show(struct seq_file *seq, void *v) +{ + seq_printf(seq, "TCP6: inuse %d\n", + fold_prot_inuse(&tcpv6_prot)); + seq_printf(seq, "UDP6: inuse %d\n", + fold_prot_inuse(&udpv6_prot)); + seq_printf(seq, "RAW6: inuse %d\n", + fold_prot_inuse(&rawv6_prot)); + seq_printf(seq, "FRAG6: inuse %d memory %d\n", + ip6_frag_nqueues, atomic_read(&ip6_frag_mem)); + return 0; +} + +static struct snmp_mib snmp6_ipstats_list[] = { +/* ipv6 mib according to RFC 2465 */ + SNMP_MIB_ITEM("Ip6InReceives", IPSTATS_MIB_INRECEIVES), + SNMP_MIB_ITEM("Ip6InHdrErrors", IPSTATS_MIB_INHDRERRORS), + SNMP_MIB_ITEM("Ip6InTooBigErrors", IPSTATS_MIB_INTOOBIGERRORS), + SNMP_MIB_ITEM("Ip6InNoRoutes", IPSTATS_MIB_INNOROUTES), + SNMP_MIB_ITEM("Ip6InAddrErrors", IPSTATS_MIB_INADDRERRORS), + SNMP_MIB_ITEM("Ip6InUnknownProtos", IPSTATS_MIB_INUNKNOWNPROTOS), + SNMP_MIB_ITEM("Ip6InTruncatedPkts", IPSTATS_MIB_INTRUNCATEDPKTS), + SNMP_MIB_ITEM("Ip6InDiscards", IPSTATS_MIB_INDISCARDS), + SNMP_MIB_ITEM("Ip6InDelivers", IPSTATS_MIB_INDELIVERS), + SNMP_MIB_ITEM("Ip6OutForwDatagrams", IPSTATS_MIB_OUTFORWDATAGRAMS), + SNMP_MIB_ITEM("Ip6OutRequests", IPSTATS_MIB_OUTREQUESTS), + SNMP_MIB_ITEM("Ip6OutDiscards", IPSTATS_MIB_OUTDISCARDS), + SNMP_MIB_ITEM("Ip6OutNoRoutes", IPSTATS_MIB_OUTNOROUTES), + SNMP_MIB_ITEM("Ip6ReasmTimeout", IPSTATS_MIB_REASMTIMEOUT), + SNMP_MIB_ITEM("Ip6ReasmReqds", IPSTATS_MIB_REASMREQDS), + SNMP_MIB_ITEM("Ip6ReasmOKs", IPSTATS_MIB_REASMOKS), + SNMP_MIB_ITEM("Ip6ReasmFails", IPSTATS_MIB_REASMFAILS), + SNMP_MIB_ITEM("Ip6FragOKs", IPSTATS_MIB_FRAGOKS), + SNMP_MIB_ITEM("Ip6FragFails", IPSTATS_MIB_FRAGFAILS), + SNMP_MIB_ITEM("Ip6FragCreates", IPSTATS_MIB_FRAGCREATES), + SNMP_MIB_ITEM("Ip6InMcastPkts", IPSTATS_MIB_INMCASTPKTS), + SNMP_MIB_ITEM("Ip6OutMcastPkts", IPSTATS_MIB_OUTMCASTPKTS), + SNMP_MIB_SENTINEL +}; + +static struct snmp_mib snmp6_icmp6_list[] = { +/* icmpv6 mib according to RFC 2466 + + Exceptions: {In|Out}AdminProhibs are removed, because I see + no good reasons to account them separately + of another dest.unreachs. + OutErrs is zero identically. + OutEchos too. + OutRouterAdvertisements too. + OutGroupMembQueries too. + */ + SNMP_MIB_ITEM("Icmp6InMsgs", ICMP6_MIB_INMSGS), + SNMP_MIB_ITEM("Icmp6InErrors", ICMP6_MIB_INERRORS), + SNMP_MIB_ITEM("Icmp6InDestUnreachs", ICMP6_MIB_INDESTUNREACHS), + SNMP_MIB_ITEM("Icmp6InPktTooBigs", ICMP6_MIB_INPKTTOOBIGS), + SNMP_MIB_ITEM("Icmp6InTimeExcds", ICMP6_MIB_INTIMEEXCDS), + SNMP_MIB_ITEM("Icmp6InParmProblems", ICMP6_MIB_INPARMPROBLEMS), + SNMP_MIB_ITEM("Icmp6InEchos", ICMP6_MIB_INECHOS), + SNMP_MIB_ITEM("Icmp6InEchoReplies", ICMP6_MIB_INECHOREPLIES), + SNMP_MIB_ITEM("Icmp6InGroupMembQueries", ICMP6_MIB_INGROUPMEMBQUERIES), + SNMP_MIB_ITEM("Icmp6InGroupMembResponses", ICMP6_MIB_INGROUPMEMBRESPONSES), + SNMP_MIB_ITEM("Icmp6InGroupMembReductions", ICMP6_MIB_INGROUPMEMBREDUCTIONS), + SNMP_MIB_ITEM("Icmp6InRouterSolicits", ICMP6_MIB_INROUTERSOLICITS), + SNMP_MIB_ITEM("Icmp6InRouterAdvertisements", ICMP6_MIB_INROUTERADVERTISEMENTS), + SNMP_MIB_ITEM("Icmp6InNeighborSolicits", ICMP6_MIB_INNEIGHBORSOLICITS), + SNMP_MIB_ITEM("Icmp6InNeighborAdvertisements", ICMP6_MIB_INNEIGHBORADVERTISEMENTS), + SNMP_MIB_ITEM("Icmp6InRedirects", ICMP6_MIB_INREDIRECTS), + SNMP_MIB_ITEM("Icmp6OutMsgs", ICMP6_MIB_OUTMSGS), + SNMP_MIB_ITEM("Icmp6OutDestUnreachs", ICMP6_MIB_OUTDESTUNREACHS), + SNMP_MIB_ITEM("Icmp6OutPktTooBigs", ICMP6_MIB_OUTPKTTOOBIGS), + SNMP_MIB_ITEM("Icmp6OutTimeExcds", ICMP6_MIB_OUTTIMEEXCDS), + SNMP_MIB_ITEM("Icmp6OutParmProblems", ICMP6_MIB_OUTPARMPROBLEMS), + SNMP_MIB_ITEM("Icmp6OutEchoReplies", ICMP6_MIB_OUTECHOREPLIES), + SNMP_MIB_ITEM("Icmp6OutRouterSolicits", ICMP6_MIB_OUTROUTERSOLICITS), + SNMP_MIB_ITEM("Icmp6OutNeighborSolicits", ICMP6_MIB_OUTNEIGHBORSOLICITS), + SNMP_MIB_ITEM("Icmp6OutNeighborAdvertisements", ICMP6_MIB_OUTNEIGHBORADVERTISEMENTS), + SNMP_MIB_ITEM("Icmp6OutRedirects", ICMP6_MIB_OUTREDIRECTS), + SNMP_MIB_ITEM("Icmp6OutGroupMembResponses", ICMP6_MIB_OUTGROUPMEMBRESPONSES), + SNMP_MIB_ITEM("Icmp6OutGroupMembReductions", ICMP6_MIB_OUTGROUPMEMBREDUCTIONS), + SNMP_MIB_SENTINEL +}; + +static struct snmp_mib snmp6_udp6_list[] = { + SNMP_MIB_ITEM("Udp6InDatagrams", UDP_MIB_INDATAGRAMS), + SNMP_MIB_ITEM("Udp6NoPorts", UDP_MIB_NOPORTS), + SNMP_MIB_ITEM("Udp6InErrors", UDP_MIB_INERRORS), + SNMP_MIB_ITEM("Udp6OutDatagrams", UDP_MIB_OUTDATAGRAMS), + SNMP_MIB_SENTINEL +}; + +static unsigned long +fold_field(void *mib[], int offt) +{ + unsigned long res = 0; + int i; + + for (i = 0; i < NR_CPUS; i++) { + if (!cpu_possible(i)) + continue; + res += *(((unsigned long *)per_cpu_ptr(mib[0], i)) + offt); + res += *(((unsigned long *)per_cpu_ptr(mib[1], i)) + offt); + } + return res; +} + +static inline void +snmp6_seq_show_item(struct seq_file *seq, void **mib, struct snmp_mib *itemlist) +{ + int i; + for (i=0; itemlist[i].name; i++) + seq_printf(seq, "%-32s\t%lu\n", itemlist[i].name, + fold_field(mib, itemlist[i].entry)); +} + +static int snmp6_seq_show(struct seq_file *seq, void *v) +{ + struct inet6_dev *idev = (struct inet6_dev *)seq->private; + + if (idev) { + seq_printf(seq, "%-32s\t%u\n", "ifIndex", idev->dev->ifindex); + snmp6_seq_show_item(seq, (void **)idev->stats.icmpv6, snmp6_icmp6_list); + } else { + snmp6_seq_show_item(seq, (void **)ipv6_statistics, snmp6_ipstats_list); + snmp6_seq_show_item(seq, (void **)icmpv6_statistics, snmp6_icmp6_list); + snmp6_seq_show_item(seq, (void **)udp_stats_in6, snmp6_udp6_list); + } + return 0; +} + +static int sockstat6_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, sockstat6_seq_show, NULL); +} + +static struct file_operations sockstat6_seq_fops = { + .owner = THIS_MODULE, + .open = sockstat6_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int snmp6_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, snmp6_seq_show, PDE(inode)->data); +} + +static struct file_operations snmp6_seq_fops = { + .owner = THIS_MODULE, + .open = snmp6_seq_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +int snmp6_register_dev(struct inet6_dev *idev) +{ + struct proc_dir_entry *p; + + if (!idev || !idev->dev) + return -EINVAL; + + if (!proc_net_devsnmp6) + return -ENOENT; + + p = create_proc_entry(idev->dev->name, S_IRUGO, proc_net_devsnmp6); + if (!p) + return -ENOMEM; + + p->data = idev; + p->proc_fops = &snmp6_seq_fops; + + idev->stats.proc_dir_entry = p; + return 0; +} + +int snmp6_unregister_dev(struct inet6_dev *idev) +{ + if (!proc_net_devsnmp6) + return -ENOENT; + if (!idev || !idev->stats.proc_dir_entry) + return -EINVAL; + remove_proc_entry(idev->stats.proc_dir_entry->name, + proc_net_devsnmp6); + return 0; +} + +int __init ipv6_misc_proc_init(void) +{ + int rc = 0; + + if (!proc_net_fops_create("snmp6", S_IRUGO, &snmp6_seq_fops)) + goto proc_snmp6_fail; + + proc_net_devsnmp6 = proc_mkdir("dev_snmp6", proc_net); + if (!proc_net_devsnmp6) + goto proc_dev_snmp6_fail; + + if (!proc_net_fops_create("sockstat6", S_IRUGO, &sockstat6_seq_fops)) + goto proc_sockstat6_fail; +out: + return rc; + +proc_sockstat6_fail: + proc_net_remove("dev_snmp6"); +proc_dev_snmp6_fail: + proc_net_remove("snmp6"); +proc_snmp6_fail: + rc = -ENOMEM; + goto out; +} + +void ipv6_misc_proc_exit(void) +{ + proc_net_remove("sockstat6"); + proc_net_remove("dev_snmp6"); + proc_net_remove("snmp6"); +} + +#else /* CONFIG_PROC_FS */ + + +int snmp6_register_dev(struct inet6_dev *idev) +{ + return 0; +} + +int snmp6_unregister_dev(struct inet6_dev *idev) +{ + return 0; +} +#endif /* CONFIG_PROC_FS */ + +int snmp6_alloc_dev(struct inet6_dev *idev) +{ + int err = -ENOMEM; + + if (!idev || !idev->dev) + return -EINVAL; + + if (snmp6_mib_init((void **)idev->stats.icmpv6, sizeof(struct icmpv6_mib), + __alignof__(struct icmpv6_mib)) < 0) + goto err_icmp; + + return 0; + +err_icmp: + return err; +} + +int snmp6_free_dev(struct inet6_dev *idev) +{ + snmp6_mib_free((void **)idev->stats.icmpv6); + return 0; +} + + |
