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netns xfrm: per-netns MIBs

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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2008-11-25 17:59:52 -08:00 committed by David S. Miller
parent 4fb236bac9
commit 59c9940ed0
7 changed files with 81 additions and 65 deletions
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3
include/net/netns/mib.h
View File

@ -20,6 +20,9 @@ struct netns_mib {
DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6_statistics);
DEFINE_SNMP_STAT(struct icmpv6msg_mib, icmpv6msg_statistics);
#endif
#ifdef CONFIG_XFRM_STATISTICS
DEFINE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics);
#endif
};
#endif

13
include/net/xfrm.h
View File

@ -38,14 +38,13 @@
MODULE_ALIAS("xfrm-type-" __stringify(family) "-" __stringify(proto))
#ifdef CONFIG_XFRM_STATISTICS
DECLARE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics);
#define XFRM_INC_STATS(field) SNMP_INC_STATS(xfrm_statistics, field)
#define XFRM_INC_STATS_BH(field) SNMP_INC_STATS_BH(xfrm_statistics, field)
#define XFRM_INC_STATS_USER(field) SNMP_INC_STATS_USER(xfrm_statistics, field)
#define XFRM_INC_STATS(net, field) SNMP_INC_STATS((net)->mib.xfrm_statistics, field)
#define XFRM_INC_STATS_BH(net, field) SNMP_INC_STATS_BH((net)->mib.xfrm_statistics, field)
#define XFRM_INC_STATS_USER(net, field) SNMP_INC_STATS_USER((net)-mib.xfrm_statistics, field)
#else
#define XFRM_INC_STATS(field)
#define XFRM_INC_STATS_BH(field)
#define XFRM_INC_STATS_USER(field)
#define XFRM_INC_STATS(net, field) ((void)(net))
#define XFRM_INC_STATS_BH(net, field) ((void)(net))
#define XFRM_INC_STATS_USER(net, field) ((void)(net))
#endif
extern u32 sysctl_xfrm_aevent_etime;

9
net/ipv6/xfrm6_input.c
View File

@ -58,6 +58,7 @@ EXPORT_SYMBOL(xfrm6_rcv);
int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
xfrm_address_t *saddr, u8 proto)
{
struct net *net = dev_net(skb->dev);
struct xfrm_state *x = NULL;
int i = 0;
@ -67,7 +68,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
sp = secpath_dup(skb->sp);
if (!sp) {
XFRM_INC_STATS(LINUX_MIB_XFRMINERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINERROR);
goto drop;
}
if (skb->sp)
@ -76,7 +77,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
}
if (1 + skb->sp->len == XFRM_MAX_DEPTH) {
XFRM_INC_STATS(LINUX_MIB_XFRMINBUFFERERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINBUFFERERROR);
goto drop;
}
@ -100,7 +101,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
break;
}
x = xfrm_state_lookup_byaddr(&init_net, dst, src, proto, AF_INET6);
x = xfrm_state_lookup_byaddr(net, dst, src, proto, AF_INET6);
if (!x)
continue;
@ -122,7 +123,7 @@ int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
}
if (!x) {
XFRM_INC_STATS(LINUX_MIB_XFRMINNOSTATES);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINNOSTATES);
xfrm_audit_state_notfound_simple(skb, AF_INET6);
goto drop;
}

22
net/xfrm/xfrm_input.c
View File

@ -128,7 +128,7 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
sp = secpath_dup(skb->sp);
if (!sp) {
XFRM_INC_STATS(LINUX_MIB_XFRMINERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINERROR);
goto drop;
}
if (skb->sp)
@ -142,19 +142,19 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
seq = 0;
if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0) {
XFRM_INC_STATS(LINUX_MIB_XFRMINHDRERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
goto drop;
}
do {
if (skb->sp->len == XFRM_MAX_DEPTH) {
XFRM_INC_STATS(LINUX_MIB_XFRMINBUFFERERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINBUFFERERROR);
goto drop;
}
x = xfrm_state_lookup(net, daddr, spi, nexthdr, family);
if (x == NULL) {
XFRM_INC_STATS(LINUX_MIB_XFRMINNOSTATES);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINNOSTATES);
xfrm_audit_state_notfound(skb, family, spi, seq);
goto drop;
}
@ -163,22 +163,22 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
spin_lock(&x->lock);
if (unlikely(x->km.state != XFRM_STATE_VALID)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEINVALID);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEINVALID);
goto drop_unlock;
}
if ((x->encap ? x->encap->encap_type : 0) != encap_type) {
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEMISMATCH);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEMISMATCH);
goto drop_unlock;
}
if (x->props.replay_window && xfrm_replay_check(x, skb, seq)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATESEQERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATESEQERROR);
goto drop_unlock;
}
if (xfrm_state_check_expire(x)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEEXPIRED);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEEXPIRED);
goto drop_unlock;
}
@ -199,7 +199,7 @@ resume:
x->type->proto);
x->stats.integrity_failed++;
}
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEPROTOERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEPROTOERROR);
goto drop_unlock;
}
@ -225,7 +225,7 @@ resume:
}
if (inner_mode->input(x, skb)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEMODEERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEMODEERROR);
goto drop;
}
@ -243,7 +243,7 @@ resume:
err = xfrm_parse_spi(skb, nexthdr, &spi, &seq);
if (err < 0) {
XFRM_INC_STATS(LINUX_MIB_XFRMINHDRERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
goto drop;
}
} while (!err);

15
net/xfrm/xfrm_output.c
View File

@ -49,27 +49,27 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
do {
err = xfrm_state_check_space(x, skb);
if (err) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR);
goto error_nolock;
}
err = x->outer_mode->output(x, skb);
if (err) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTSTATEMODEERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEMODEERROR);
goto error_nolock;
}
spin_lock_bh(&x->lock);
err = xfrm_state_check_expire(x);
if (err) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTSTATEEXPIRED);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEEXPIRED);
goto error;
}
if (x->type->flags & XFRM_TYPE_REPLAY_PROT) {
XFRM_SKB_CB(skb)->seq.output = ++x->replay.oseq;
if (unlikely(x->replay.oseq == 0)) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTSTATESEQERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATESEQERROR);
x->replay.oseq--;
xfrm_audit_state_replay_overflow(x, skb);
err = -EOVERFLOW;
@ -90,12 +90,12 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
resume:
if (err) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTSTATEPROTOERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTSTATEPROTOERROR);
goto error_nolock;
}
if (!(skb->dst = dst_pop(dst))) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR);
err = -EHOSTUNREACH;
goto error_nolock;
}
@ -179,6 +179,7 @@ static int xfrm_output_gso(struct sk_buff *skb)
int xfrm_output(struct sk_buff *skb)
{
struct net *net = dev_net(skb->dst->dev);
int err;
if (skb_is_gso(skb))
@ -187,7 +188,7 @@ int xfrm_output(struct sk_buff *skb)
if (skb->ip_summed == CHECKSUM_PARTIAL) {
err = skb_checksum_help(skb);
if (err) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTERROR);
kfree_skb(skb);
return err;
}

82
net/xfrm/xfrm_policy.c
View File

@ -36,11 +36,6 @@
int sysctl_xfrm_larval_drop __read_mostly = 1;
#ifdef CONFIG_XFRM_STATISTICS
DEFINE_SNMP_STAT(struct linux_xfrm_mib, xfrm_statistics) __read_mostly;
EXPORT_SYMBOL(xfrm_statistics);
#endif
DEFINE_MUTEX(xfrm_cfg_mutex);
EXPORT_SYMBOL(xfrm_cfg_mutex);
@ -1570,7 +1565,7 @@ restart:
policy = xfrm_sk_policy_lookup(sk, XFRM_POLICY_OUT, fl);
err = PTR_ERR(policy);
if (IS_ERR(policy)) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTPOLERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR);
goto dropdst;
}
}
@ -1585,7 +1580,7 @@ restart:
dir, xfrm_policy_lookup);
err = PTR_ERR(policy);
if (IS_ERR(policy)) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTPOLERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR);
goto dropdst;
}
}
@ -1608,7 +1603,7 @@ restart:
default:
case XFRM_POLICY_BLOCK:
/* Prohibit the flow */
XFRM_INC_STATS(LINUX_MIB_XFRMOUTPOLBLOCK);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLBLOCK);
err = -EPERM;
goto error;
@ -1628,7 +1623,7 @@ restart:
*/
dst = xfrm_find_bundle(fl, policy, family);
if (IS_ERR(dst)) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
err = PTR_ERR(dst);
goto error;
}
@ -1644,12 +1639,12 @@ restart:
XFRM_POLICY_OUT);
if (pols[1]) {
if (IS_ERR(pols[1])) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTPOLERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR);
err = PTR_ERR(pols[1]);
goto error;
}
if (pols[1]->action == XFRM_POLICY_BLOCK) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTPOLBLOCK);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLBLOCK);
err = -EPERM;
goto error;
}
@ -1680,7 +1675,7 @@ restart:
/* EREMOTE tells the caller to generate
* a one-shot blackhole route.
*/
XFRM_INC_STATS(LINUX_MIB_XFRMOUTNOSTATES);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES);
xfrm_pol_put(policy);
return -EREMOTE;
}
@ -1696,7 +1691,7 @@ restart:
nx = xfrm_tmpl_resolve(pols, npols, fl, xfrm, family);
if (nx == -EAGAIN && signal_pending(current)) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTNOSTATES);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES);
err = -ERESTART;
goto error;
}
@ -1708,7 +1703,7 @@ restart:
err = nx;
}
if (err < 0) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTNOSTATES);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTNOSTATES);
goto error;
}
}
@ -1721,7 +1716,7 @@ restart:
dst = xfrm_bundle_create(policy, xfrm, nx, fl, dst_orig);
err = PTR_ERR(dst);
if (IS_ERR(dst)) {
XFRM_INC_STATS(LINUX_MIB_XFRMOUTBUNDLEGENERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLEGENERROR);
goto error;
}
@ -1742,9 +1737,9 @@ restart:
dst_free(dst);
if (pol_dead)
XFRM_INC_STATS(LINUX_MIB_XFRMOUTPOLDEAD);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLDEAD);
else
XFRM_INC_STATS(LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
err = -EHOSTUNREACH;
goto error;
}
@ -1756,7 +1751,7 @@ restart:
if (unlikely(err)) {
write_unlock_bh(&policy->lock);
dst_free(dst);
XFRM_INC_STATS(LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTBUNDLECHECKERROR);
goto error;
}
@ -1912,7 +1907,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
fl_dir = policy_to_flow_dir(dir);
if (__xfrm_decode_session(skb, &fl, family, reverse) < 0) {
XFRM_INC_STATS(LINUX_MIB_XFRMINHDRERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
return 0;
}
@ -1925,7 +1920,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
for (i=skb->sp->len-1; i>=0; i--) {
struct xfrm_state *x = skb->sp->xvec[i];
if (!xfrm_selector_match(&x->sel, &fl, family)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINSTATEMISMATCH);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINSTATEMISMATCH);
return 0;
}
}
@ -1935,7 +1930,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
if (sk && sk->sk_policy[dir]) {
pol = xfrm_sk_policy_lookup(sk, dir, &fl);
if (IS_ERR(pol)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINPOLERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLERROR);
return 0;
}
}
@ -1945,14 +1940,14 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
xfrm_policy_lookup);
if (IS_ERR(pol)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINPOLERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLERROR);
return 0;
}
if (!pol) {
if (skb->sp && secpath_has_nontransport(skb->sp, 0, &xerr_idx)) {
xfrm_secpath_reject(xerr_idx, skb, &fl);
XFRM_INC_STATS(LINUX_MIB_XFRMINNOPOLS);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINNOPOLS);
return 0;
}
return 1;
@ -1969,7 +1964,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
XFRM_POLICY_IN);
if (pols[1]) {
if (IS_ERR(pols[1])) {
XFRM_INC_STATS(LINUX_MIB_XFRMINPOLERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLERROR);
return 0;
}
pols[1]->curlft.use_time = get_seconds();
@ -1993,11 +1988,11 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
for (pi = 0; pi < npols; pi++) {
if (pols[pi] != pol &&
pols[pi]->action != XFRM_POLICY_ALLOW) {
XFRM_INC_STATS(LINUX_MIB_XFRMINPOLBLOCK);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLBLOCK);
goto reject;
}
if (ti + pols[pi]->xfrm_nr >= XFRM_MAX_DEPTH) {
XFRM_INC_STATS(LINUX_MIB_XFRMINBUFFERERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINBUFFERERROR);
goto reject_error;
}
for (i = 0; i < pols[pi]->xfrm_nr; i++)
@ -2021,20 +2016,20 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
if (k < -1)
/* "-2 - errored_index" returned */
xerr_idx = -(2+k);
XFRM_INC_STATS(LINUX_MIB_XFRMINTMPLMISMATCH);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINTMPLMISMATCH);
goto reject;
}
}
if (secpath_has_nontransport(sp, k, &xerr_idx)) {
XFRM_INC_STATS(LINUX_MIB_XFRMINTMPLMISMATCH);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINTMPLMISMATCH);
goto reject;
}
xfrm_pols_put(pols, npols);
return 1;
}
XFRM_INC_STATS(LINUX_MIB_XFRMINPOLBLOCK);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINPOLBLOCK);
reject:
xfrm_secpath_reject(xerr_idx, skb, &fl);
@ -2051,7 +2046,7 @@ int __xfrm_route_forward(struct sk_buff *skb, unsigned short family)
if (xfrm_decode_session(skb, &fl, family) < 0) {
/* XXX: we should have something like FWDHDRERROR here. */
XFRM_INC_STATS(LINUX_MIB_XFRMINHDRERROR);
XFRM_INC_STATS(net, LINUX_MIB_XFRMINHDRERROR);
return 0;
}
@ -2380,13 +2375,27 @@ static struct notifier_block xfrm_dev_notifier = {
};
#ifdef CONFIG_XFRM_STATISTICS
static int __init xfrm_statistics_init(void)
static int __net_init xfrm_statistics_init(struct net *net)
{
if (snmp_mib_init((void **)xfrm_statistics,
if (snmp_mib_init((void **)net->mib.xfrm_statistics,
sizeof(struct linux_xfrm_mib)) < 0)
return -ENOMEM;
return 0;
}
static void xfrm_statistics_fini(struct net *net)
{
snmp_mib_free((void **)net->mib.xfrm_statistics);
}
#else
static int __net_init xfrm_statistics_init(struct net *net)
{
return 0;
}
static void xfrm_statistics_fini(struct net *net)
{
}
#endif
static int __net_init xfrm_policy_init(struct net *net)
@ -2480,6 +2489,9 @@ static int __net_init xfrm_net_init(struct net *net)
{
int rv;
rv = xfrm_statistics_init(net);
if (rv < 0)
goto out_statistics;
rv = xfrm_state_init(net);
if (rv < 0)
goto out_state;
@ -2491,6 +2503,8 @@ static int __net_init xfrm_net_init(struct net *net)
out_policy:
xfrm_state_fini(net);
out_state:
xfrm_statistics_fini(net);
out_statistics:
return rv;
}
@ -2498,6 +2512,7 @@ static void __net_exit xfrm_net_exit(struct net *net)
{
xfrm_policy_fini(net);
xfrm_state_fini(net);
xfrm_statistics_fini(net);
}
static struct pernet_operations __net_initdata xfrm_net_ops = {
@ -2508,9 +2523,6 @@ static struct pernet_operations __net_initdata xfrm_net_ops = {
void __init xfrm_init(void)
{
register_pernet_subsys(&xfrm_net_ops);
#ifdef CONFIG_XFRM_STATISTICS
xfrm_statistics_init();
#endif
xfrm_input_init();
#ifdef CONFIG_XFRM_STATISTICS
xfrm_proc_init();

2
net/xfrm/xfrm_proc.c
View File

@ -62,7 +62,7 @@ static int xfrm_statistics_seq_show(struct seq_file *seq, void *v)
int i;
for (i=0; xfrm_mib_list[i].name; i++)
seq_printf(seq, "%-24s\t%lu\n", xfrm_mib_list[i].name,
fold_field((void **)xfrm_statistics,
fold_field((void **)init_net.mib.xfrm_statistics,
xfrm_mib_list[i].entry));
return 0;
}