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-rw-r--r--net/ipv6/addrconf.c4
-rw-r--r--net/ipv6/ah6.c2
-rw-r--r--net/ipv6/esp6.c2
-rw-r--r--net/ipv6/fib6_rules.c24
-rw-r--r--net/ipv6/inet6_hashtables.c15
-rw-r--r--net/ipv6/ip6_flowlabel.c9
-rw-r--r--net/ipv6/ip6_tunnel.c25
-rw-r--r--net/ipv6/netfilter/ip6_queue.c7
-rw-r--r--net/ipv6/netfilter/ip6_tables.c42
-rw-r--r--net/ipv6/netfilter/ip6t_LOG.c4
-rw-r--r--net/ipv6/netfilter/ip6t_REJECT.c4
-rw-r--r--net/ipv6/netfilter/ip6t_ah.c19
-rw-r--r--net/ipv6/netfilter/ip6t_frag.c47
-rw-r--r--net/ipv6/netfilter/ip6t_rt.c9
-rw-r--r--net/ipv6/netfilter/ip6table_filter.c4
-rw-r--r--net/ipv6/netfilter/ip6table_mangle.c14
-rw-r--r--net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c12
-rw-r--r--net/ipv6/reassembly.c4
-rw-r--r--net/ipv6/sit.c25
-rw-r--r--net/ipv6/syncookies.c5
-rw-r--r--net/ipv6/tcp_ipv6.c101
21 files changed, 201 insertions, 177 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 522bdc7..b1ce8fc 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4498,7 +4498,7 @@ static int addrconf_init_net(struct net *net)
all = &ipv6_devconf;
dflt = &ipv6_devconf_dflt;
- if (net != &init_net) {
+ if (!net_eq(net, &init_net)) {
all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL);
if (all == NULL)
goto err_alloc_all;
@@ -4546,7 +4546,7 @@ static void addrconf_exit_net(struct net *net)
__addrconf_sysctl_unregister(net->ipv6.devconf_dflt);
__addrconf_sysctl_unregister(net->ipv6.devconf_all);
#endif
- if (net != &init_net) {
+ if (!net_eq(net, &init_net)) {
kfree(net->ipv6.devconf_dflt);
kfree(net->ipv6.devconf_all);
}
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 0f526f8..c2f300c 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -667,7 +667,7 @@ static int ah6_init_state(struct xfrm_state *x)
}
ahp->icv_full_len = aalg_desc->uinfo.auth.icv_fullbits/8;
- ahp->icv_trunc_len = aalg_desc->uinfo.auth.icv_truncbits/8;
+ ahp->icv_trunc_len = x->aalg->alg_trunc_len/8;
BUG_ON(ahp->icv_trunc_len > MAX_AH_AUTH_LEN);
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index af597c7..668a46b 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -473,7 +473,7 @@ static int esp_init_authenc(struct xfrm_state *x)
}
err = crypto_aead_setauthsize(
- aead, aalg_desc->uinfo.auth.icv_truncbits / 8);
+ aead, x->aalg->alg_trunc_len / 8);
if (err)
goto free_key;
}
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 00a7a5e..b7aa7c6 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -264,44 +264,36 @@ static struct fib_rules_ops fib6_rules_ops_template = {
static int fib6_rules_net_init(struct net *net)
{
+ struct fib_rules_ops *ops;
int err = -ENOMEM;
- net->ipv6.fib6_rules_ops = kmemdup(&fib6_rules_ops_template,
- sizeof(*net->ipv6.fib6_rules_ops),
- GFP_KERNEL);
- if (!net->ipv6.fib6_rules_ops)
- goto out;
+ ops = fib_rules_register(&fib6_rules_ops_template, net);
+ if (IS_ERR(ops))
+ return PTR_ERR(ops);
+ net->ipv6.fib6_rules_ops = ops;
- net->ipv6.fib6_rules_ops->fro_net = net;
- INIT_LIST_HEAD(&net->ipv6.fib6_rules_ops->rules_list);
err = fib_default_rule_add(net->ipv6.fib6_rules_ops, 0,
- RT6_TABLE_LOCAL, FIB_RULE_PERMANENT);
+ RT6_TABLE_LOCAL, 0);
if (err)
goto out_fib6_rules_ops;
err = fib_default_rule_add(net->ipv6.fib6_rules_ops,
0x7FFE, RT6_TABLE_MAIN, 0);
if (err)
- goto out_fib6_default_rule_add;
+ goto out_fib6_rules_ops;
- err = fib_rules_register(net->ipv6.fib6_rules_ops);
- if (err)
- goto out_fib6_default_rule_add;
out:
return err;
-out_fib6_default_rule_add:
- fib_rules_cleanup_ops(net->ipv6.fib6_rules_ops);
out_fib6_rules_ops:
- kfree(net->ipv6.fib6_rules_ops);
+ fib_rules_unregister(ops);
goto out;
}
static void fib6_rules_net_exit(struct net *net)
{
fib_rules_unregister(net->ipv6.fib6_rules_ops);
- kfree(net->ipv6.fib6_rules_ops);
}
static struct pernet_operations fib6_rules_net_ops = {
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 00c6a3e..c813e29 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -223,6 +223,7 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
struct sock *sk2;
const struct hlist_nulls_node *node;
struct inet_timewait_sock *tw;
+ int twrefcnt = 0;
spin_lock(lock);
@@ -250,19 +251,23 @@ unique:
* in hash table socket with a funny identity. */
inet->inet_num = lport;
inet->inet_sport = htons(lport);
+ sk->sk_hash = hash;
WARN_ON(!sk_unhashed(sk));
__sk_nulls_add_node_rcu(sk, &head->chain);
- sk->sk_hash = hash;
+ if (tw) {
+ twrefcnt = inet_twsk_unhash(tw);
+ NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
+ }
spin_unlock(lock);
+ if (twrefcnt)
+ inet_twsk_put(tw);
sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
- if (twp != NULL) {
+ if (twp) {
*twp = tw;
- NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
- } else if (tw != NULL) {
+ } else if (tw) {
/* Silly. Should hash-dance instead... */
inet_twsk_deschedule(tw, death_row);
- NET_INC_STATS_BH(net, LINUX_MIB_TIMEWAITRECYCLED);
inet_twsk_put(tw);
}
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 593a67e..6e7bffa 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -67,7 +67,7 @@ static inline struct ip6_flowlabel *__fl_lookup(struct net *net, __be32 label)
struct ip6_flowlabel *fl;
for (fl=fl_ht[FL_HASH(label)]; fl; fl = fl->next) {
- if (fl->label == label && fl->fl_net == net)
+ if (fl->label == label && net_eq(fl->fl_net, net))
return fl;
}
return NULL;
@@ -163,7 +163,8 @@ static void ip6_fl_purge(struct net *net)
struct ip6_flowlabel *fl, **flp;
flp = &fl_ht[i];
while ((fl = *flp) != NULL) {
- if (fl->fl_net == net && atomic_read(&fl->users) == 0) {
+ if (net_eq(fl->fl_net, net) &&
+ atomic_read(&fl->users) == 0) {
*flp = fl->next;
fl_free(fl);
atomic_dec(&fl_size);
@@ -630,7 +631,7 @@ static struct ip6_flowlabel *ip6fl_get_first(struct seq_file *seq)
for (state->bucket = 0; state->bucket <= FL_HASH_MASK; ++state->bucket) {
fl = fl_ht[state->bucket];
- while (fl && fl->fl_net != net)
+ while (fl && !net_eq(fl->fl_net, net))
fl = fl->next;
if (fl)
break;
@@ -645,7 +646,7 @@ static struct ip6_flowlabel *ip6fl_get_next(struct seq_file *seq, struct ip6_flo
fl = fl->next;
try_again:
- while (fl && fl->fl_net != net)
+ while (fl && !net_eq(fl->fl_net, net))
fl = fl->next;
while (!fl) {
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index e5c0f6b..d453d07 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1409,17 +1409,8 @@ static void ip6_tnl_destroy_tunnels(struct ip6_tnl_net *ip6n)
static int ip6_tnl_init_net(struct net *net)
{
+ struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
int err;
- struct ip6_tnl_net *ip6n;
-
- err = -ENOMEM;
- ip6n = kzalloc(sizeof(struct ip6_tnl_net), GFP_KERNEL);
- if (ip6n == NULL)
- goto err_alloc;
-
- err = net_assign_generic(net, ip6_tnl_net_id, ip6n);
- if (err < 0)
- goto err_assign;
ip6n->tnls[0] = ip6n->tnls_wc;
ip6n->tnls[1] = ip6n->tnls_r_l;
@@ -1442,27 +1433,23 @@ static int ip6_tnl_init_net(struct net *net)
err_register:
free_netdev(ip6n->fb_tnl_dev);
err_alloc_dev:
- /* nothing */
-err_assign:
- kfree(ip6n);
-err_alloc:
return err;
}
static void ip6_tnl_exit_net(struct net *net)
{
- struct ip6_tnl_net *ip6n;
+ struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
- ip6n = net_generic(net, ip6_tnl_net_id);
rtnl_lock();
ip6_tnl_destroy_tunnels(ip6n);
rtnl_unlock();
- kfree(ip6n);
}
static struct pernet_operations ip6_tnl_net_ops = {
.init = ip6_tnl_init_net,
.exit = ip6_tnl_exit_net,
+ .id = &ip6_tnl_net_id,
+ .size = sizeof(struct ip6_tnl_net),
};
/**
@@ -1487,7 +1474,7 @@ static int __init ip6_tunnel_init(void)
goto unreg_ip4ip6;
}
- err = register_pernet_gen_device(&ip6_tnl_net_id, &ip6_tnl_net_ops);
+ err = register_pernet_device(&ip6_tnl_net_ops);
if (err < 0)
goto err_pernet;
return 0;
@@ -1511,7 +1498,7 @@ static void __exit ip6_tunnel_cleanup(void)
if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
printk(KERN_INFO "ip6_tunnel close: can't deregister ip6ip6\n");
- unregister_pernet_gen_device(ip6_tnl_net_id, &ip6_tnl_net_ops);
+ unregister_pernet_device(&ip6_tnl_net_ops);
}
module_init(ip6_tunnel_init);
diff --git a/net/ipv6/netfilter/ip6_queue.c b/net/ipv6/netfilter/ip6_queue.c
index 1cf3f0c..db4d572 100644
--- a/net/ipv6/netfilter/ip6_queue.c
+++ b/net/ipv6/netfilter/ip6_queue.c
@@ -499,10 +499,9 @@ ipq_rcv_nl_event(struct notifier_block *this,
{
struct netlink_notify *n = ptr;
- if (event == NETLINK_URELEASE &&
- n->protocol == NETLINK_IP6_FW && n->pid) {
+ if (event == NETLINK_URELEASE && n->protocol == NETLINK_IP6_FW) {
write_lock_bh(&queue_lock);
- if ((n->net == &init_net) && (n->pid == peer_pid))
+ if ((net_eq(n->net, &init_net)) && (n->pid == peer_pid))
__ipq_reset();
write_unlock_bh(&queue_lock);
}
@@ -625,7 +624,7 @@ cleanup_netlink_notifier:
static void __exit ip6_queue_fini(void)
{
nf_unregister_queue_handlers(&nfqh);
- synchronize_net();
+
ipq_flush(NULL, 0);
#ifdef CONFIG_SYSCTL
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index cc9f8ef..480d7f8 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -105,9 +105,9 @@ ip6_packet_match(const struct sk_buff *skb,
#define FWINV(bool, invflg) ((bool) ^ !!(ip6info->invflags & (invflg)))
if (FWINV(ipv6_masked_addr_cmp(&ipv6->saddr, &ip6info->smsk,
- &ip6info->src), IP6T_INV_SRCIP)
- || FWINV(ipv6_masked_addr_cmp(&ipv6->daddr, &ip6info->dmsk,
- &ip6info->dst), IP6T_INV_DSTIP)) {
+ &ip6info->src), IP6T_INV_SRCIP) ||
+ FWINV(ipv6_masked_addr_cmp(&ipv6->daddr, &ip6info->dmsk,
+ &ip6info->dst), IP6T_INV_DSTIP)) {
dprintf("Source or dest mismatch.\n");
/*
dprintf("SRC: %u. Mask: %u. Target: %u.%s\n", ip->saddr,
@@ -277,11 +277,11 @@ get_chainname_rulenum(struct ip6t_entry *s, struct ip6t_entry *e,
} else if (s == e) {
(*rulenum)++;
- if (s->target_offset == sizeof(struct ip6t_entry)
- && strcmp(t->target.u.kernel.target->name,
- IP6T_STANDARD_TARGET) == 0
- && t->verdict < 0
- && unconditional(&s->ipv6)) {
+ if (s->target_offset == sizeof(struct ip6t_entry) &&
+ strcmp(t->target.u.kernel.target->name,
+ IP6T_STANDARD_TARGET) == 0 &&
+ t->verdict < 0 &&
+ unconditional(&s->ipv6)) {
/* Tail of chains: STANDARD target (return/policy) */
*comment = *chainname == hookname
? comments[NF_IP6_TRACE_COMMENT_POLICY]
@@ -418,8 +418,8 @@ ip6t_do_table(struct sk_buff *skb,
back = get_entry(table_base, back->comefrom);
continue;
}
- if (table_base + v != ip6t_next_entry(e)
- && !(e->ipv6.flags & IP6T_F_GOTO)) {
+ if (table_base + v != ip6t_next_entry(e) &&
+ !(e->ipv6.flags & IP6T_F_GOTO)) {
/* Save old back ptr in next entry */
struct ip6t_entry *next = ip6t_next_entry(e);
next->comefrom = (void *)back - table_base;
@@ -505,11 +505,11 @@ mark_source_chains(struct xt_table_info *newinfo,
e->comefrom |= ((1 << hook) | (1 << NF_INET_NUMHOOKS));
/* Unconditional return/END. */
- if ((e->target_offset == sizeof(struct ip6t_entry)
- && (strcmp(t->target.u.user.name,
- IP6T_STANDARD_TARGET) == 0)
- && t->verdict < 0
- && unconditional(&e->ipv6)) || visited) {
+ if ((e->target_offset == sizeof(struct ip6t_entry) &&
+ (strcmp(t->target.u.user.name,
+ IP6T_STANDARD_TARGET) == 0) &&
+ t->verdict < 0 &&
+ unconditional(&e->ipv6)) || visited) {
unsigned int oldpos, size;
if ((strcmp(t->target.u.user.name,
@@ -556,8 +556,8 @@ mark_source_chains(struct xt_table_info *newinfo,
int newpos = t->verdict;
if (strcmp(t->target.u.user.name,
- IP6T_STANDARD_TARGET) == 0
- && newpos >= 0) {
+ IP6T_STANDARD_TARGET) == 0 &&
+ newpos >= 0) {
if (newpos > newinfo->size -
sizeof(struct ip6t_entry)) {
duprintf("mark_source_chains: "
@@ -767,8 +767,8 @@ check_entry_size_and_hooks(struct ip6t_entry *e,
{
unsigned int h;
- if ((unsigned long)e % __alignof__(struct ip6t_entry) != 0
- || (unsigned char *)e + sizeof(struct ip6t_entry) >= limit) {
+ if ((unsigned long)e % __alignof__(struct ip6t_entry) != 0 ||
+ (unsigned char *)e + sizeof(struct ip6t_entry) >= limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
@@ -1584,8 +1584,8 @@ check_compat_entry_size_and_hooks(struct compat_ip6t_entry *e,
int ret, off, h;
duprintf("check_compat_entry_size_and_hooks %p\n", e);
- if ((unsigned long)e % __alignof__(struct compat_ip6t_entry) != 0
- || (unsigned char *)e + sizeof(struct compat_ip6t_entry) >= limit) {
+ if ((unsigned long)e % __alignof__(struct compat_ip6t_entry) != 0 ||
+ (unsigned char *)e + sizeof(struct compat_ip6t_entry) >= limit) {
duprintf("Bad offset %p, limit = %p\n", e, limit);
return -EINVAL;
}
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index 7018cac..b285fdf 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -249,8 +249,8 @@ static void dump_packet(const struct nf_loginfo *info,
/* Max length: 11 "URGP=65535 " */
printk("URGP=%u ", ntohs(th->urg_ptr));
- if ((logflags & IP6T_LOG_TCPOPT)
- && th->doff * 4 > sizeof(struct tcphdr)) {
+ if ((logflags & IP6T_LOG_TCPOPT) &&
+ th->doff * 4 > sizeof(struct tcphdr)) {
u_int8_t _opt[60 - sizeof(struct tcphdr)];
const u_int8_t *op;
unsigned int i;
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 5a7f00c..8311ca3 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -223,8 +223,8 @@ static bool reject_tg6_check(const struct xt_tgchk_param *par)
return false;
} else if (rejinfo->with == IP6T_TCP_RESET) {
/* Must specify that it's a TCP packet */
- if (e->ipv6.proto != IPPROTO_TCP
- || (e->ipv6.invflags & XT_INV_PROTO)) {
+ if (e->ipv6.proto != IPPROTO_TCP ||
+ (e->ipv6.invflags & XT_INV_PROTO)) {
printk("ip6t_REJECT: TCP_RESET illegal for non-tcp\n");
return false;
}
diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c
index 3a82f24..ac0b7c6 100644
--- a/net/ipv6/netfilter/ip6t_ah.c
+++ b/net/ipv6/netfilter/ip6t_ah.c
@@ -77,17 +77,14 @@ static bool ah_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
ahinfo->hdrres, ah->reserved,
!(ahinfo->hdrres && ah->reserved));
- return (ah != NULL)
- &&
- spi_match(ahinfo->spis[0], ahinfo->spis[1],
- ntohl(ah->spi),
- !!(ahinfo->invflags & IP6T_AH_INV_SPI))
- &&
- (!ahinfo->hdrlen ||
- (ahinfo->hdrlen == hdrlen) ^
- !!(ahinfo->invflags & IP6T_AH_INV_LEN))
- &&
- !(ahinfo->hdrres && ah->reserved);
+ return (ah != NULL) &&
+ spi_match(ahinfo->spis[0], ahinfo->spis[1],
+ ntohl(ah->spi),
+ !!(ahinfo->invflags & IP6T_AH_INV_SPI)) &&
+ (!ahinfo->hdrlen ||
+ (ahinfo->hdrlen == hdrlen) ^
+ !!(ahinfo->invflags & IP6T_AH_INV_LEN)) &&
+ !(ahinfo->hdrres && ah->reserved);
}
static bool ah_mt6_check(const struct xt_mtchk_param *par)
diff --git a/net/ipv6/netfilter/ip6t_frag.c b/net/ipv6/netfilter/ip6t_frag.c
index 673aa0a..7b91c25 100644
--- a/net/ipv6/netfilter/ip6t_frag.c
+++ b/net/ipv6/netfilter/ip6t_frag.c
@@ -70,41 +70,36 @@ frag_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
pr_debug("res %02X %02X%04X %02X ",
fraginfo->flags & IP6T_FRAG_RES, fh->reserved,
ntohs(fh->frag_off) & 0x6,
- !((fraginfo->flags & IP6T_FRAG_RES)
- && (fh->reserved || (ntohs(fh->frag_off) & 0x06))));
+ !((fraginfo->flags & IP6T_FRAG_RES) &&
+ (fh->reserved || (ntohs(fh->frag_off) & 0x06))));
pr_debug("first %02X %02X %02X ",
fraginfo->flags & IP6T_FRAG_FST,
ntohs(fh->frag_off) & ~0x7,
- !((fraginfo->flags & IP6T_FRAG_FST)
- && (ntohs(fh->frag_off) & ~0x7)));
+ !((fraginfo->flags & IP6T_FRAG_FST) &&
+ (ntohs(fh->frag_off) & ~0x7)));
pr_debug("mf %02X %02X %02X ",
fraginfo->flags & IP6T_FRAG_MF,
ntohs(fh->frag_off) & IP6_MF,
- !((fraginfo->flags & IP6T_FRAG_MF)
- && !((ntohs(fh->frag_off) & IP6_MF))));
+ !((fraginfo->flags & IP6T_FRAG_MF) &&
+ !((ntohs(fh->frag_off) & IP6_MF))));
pr_debug("last %02X %02X %02X\n",
fraginfo->flags & IP6T_FRAG_NMF,
ntohs(fh->frag_off) & IP6_MF,
- !((fraginfo->flags & IP6T_FRAG_NMF)
- && (ntohs(fh->frag_off) & IP6_MF)));
-
- return (fh != NULL)
- &&
- id_match(fraginfo->ids[0], fraginfo->ids[1],
- ntohl(fh->identification),
- !!(fraginfo->invflags & IP6T_FRAG_INV_IDS))
- &&
- !((fraginfo->flags & IP6T_FRAG_RES)
- && (fh->reserved || (ntohs(fh->frag_off) & 0x6)))
- &&
- !((fraginfo->flags & IP6T_FRAG_FST)
- && (ntohs(fh->frag_off) & ~0x7))
- &&
- !((fraginfo->flags & IP6T_FRAG_MF)
- && !(ntohs(fh->frag_off) & IP6_MF))
- &&
- !((fraginfo->flags & IP6T_FRAG_NMF)
- && (ntohs(fh->frag_off) & IP6_MF));
+ !((fraginfo->flags & IP6T_FRAG_NMF) &&
+ (ntohs(fh->frag_off) & IP6_MF)));
+
+ return (fh != NULL) &&
+ id_match(fraginfo->ids[0], fraginfo->ids[1],
+ ntohl(fh->identification),
+ !!(fraginfo->invflags & IP6T_FRAG_INV_IDS)) &&
+ !((fraginfo->flags & IP6T_FRAG_RES) &&
+ (fh->reserved || (ntohs(fh->frag_off) & 0x6))) &&
+ !((fraginfo->flags & IP6T_FRAG_FST) &&
+ (ntohs(fh->frag_off) & ~0x7)) &&
+ !((fraginfo->flags & IP6T_FRAG_MF) &&
+ !(ntohs(fh->frag_off) & IP6_MF)) &&
+ !((fraginfo->flags & IP6T_FRAG_NMF) &&
+ (ntohs(fh->frag_off) & IP6_MF));
}
static bool frag_mt6_check(const struct xt_mtchk_param *par)
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index 356b8d6..b77307f 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -92,16 +92,13 @@ static bool rt_mt6(const struct sk_buff *skb, const struct xt_match_param *par)
!((rtinfo->flags & IP6T_RT_RES) &&
(((const struct rt0_hdr *)rh)->reserved)));
- ret = (rh != NULL)
- &&
+ ret = (rh != NULL) &&
(segsleft_match(rtinfo->segsleft[0], rtinfo->segsleft[1],
rh->segments_left,
- !!(rtinfo->invflags & IP6T_RT_INV_SGS)))
- &&
+ !!(rtinfo->invflags & IP6T_RT_INV_SGS))) &&
(!(rtinfo->flags & IP6T_RT_LEN) ||
((rtinfo->hdrlen == hdrlen) ^
- !!(rtinfo->invflags & IP6T_RT_INV_LEN)))
- &&
+ !!(rtinfo->invflags & IP6T_RT_INV_LEN))) &&
(!(rtinfo->flags & IP6T_RT_TYP) ||
((rtinfo->rt_type == rh->type) ^
!!(rtinfo->invflags & IP6T_RT_INV_TYP)));
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index 6f4383a..ad378ef 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -79,8 +79,8 @@ ip6t_local_out_hook(unsigned int hook,
{
#if 0
/* root is playing with raw sockets. */
- if (skb->len < sizeof(struct iphdr)
- || ip_hdrlen(skb) < sizeof(struct iphdr)) {
+ if (skb->len < sizeof(struct iphdr) ||
+ ip_hdrlen(skb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ip6t_hook: happy cracking.\n");
return NF_ACCEPT;
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 0ad9143..a929c19 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -102,8 +102,8 @@ ip6t_local_out_hook(unsigned int hook,
#if 0
/* root is playing with raw sockets. */
- if (skb->len < sizeof(struct iphdr)
- || ip_hdrlen(skb) < sizeof(struct iphdr)) {
+ if (skb->len < sizeof(struct iphdr) ||
+ ip_hdrlen(skb) < sizeof(struct iphdr)) {
if (net_ratelimit())
printk("ip6t_hook: happy cracking.\n");
return NF_ACCEPT;
@@ -122,11 +122,11 @@ ip6t_local_out_hook(unsigned int hook,
ret = ip6t_do_table(skb, hook, in, out,
dev_net(out)->ipv6.ip6table_mangle);
- if (ret != NF_DROP && ret != NF_STOLEN
- && (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr))
- || memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr))
- || skb->mark != mark
- || ipv6_hdr(skb)->hop_limit != hop_limit))
+ if (ret != NF_DROP && ret != NF_STOLEN &&
+ (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
+ memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
+ skb->mark != mark ||
+ ipv6_hdr(skb)->hop_limit != hop_limit))
return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;
return ret;
diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
index 642dcb1..0f3df45 100644
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -244,18 +244,18 @@ static const struct nla_policy icmpv6_nla_policy[CTA_PROTO_MAX+1] = {
static int icmpv6_nlattr_to_tuple(struct nlattr *tb[],
struct nf_conntrack_tuple *tuple)
{
- if (!tb[CTA_PROTO_ICMPV6_TYPE]
- || !tb[CTA_PROTO_ICMPV6_CODE]
- || !tb[CTA_PROTO_ICMPV6_ID])
+ if (!tb[CTA_PROTO_ICMPV6_TYPE] ||
+ !tb[CTA_PROTO_ICMPV6_CODE] ||
+ !tb[CTA_PROTO_ICMPV6_ID])
return -EINVAL;
tuple->dst.u.icmp.type = nla_get_u8(tb[CTA_PROTO_ICMPV6_TYPE]);
tuple->dst.u.icmp.code = nla_get_u8(tb[CTA_PROTO_ICMPV6_CODE]);
tuple->src.u.icmp.id = nla_get_be16(tb[CTA_PROTO_ICMPV6_ID]);
- if (tuple->dst.u.icmp.type < 128
- || tuple->dst.u.icmp.type - 128 >= sizeof(invmap)
- || !invmap[tuple->dst.u.icmp.type - 128])
+ if (tuple->dst.u.icmp.type < 128 ||
+ tuple->dst.u.icmp.type - 128 >= sizeof(invmap) ||
+ !invmap[tuple->dst.u.icmp.type - 128])
return -EINVAL;
return 0;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index dce699f..45efc39 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -681,7 +681,7 @@ static int ip6_frags_ns_sysctl_register(struct net *net)
struct ctl_table_header *hdr;
table = ip6_frags_ns_ctl_table;
- if (net != &init_net) {
+ if (!net_eq(net, &init_net)) {
table = kmemdup(table, sizeof(ip6_frags_ns_ctl_table), GFP_KERNEL);
if (table == NULL)
goto err_alloc;
@@ -699,7 +699,7 @@ static int ip6_frags_ns_sysctl_register(struct net *net)
return 0;
err_reg:
- if (net != &init_net)
+ if (!net_eq(net, &init_net))
kfree(table);
err_alloc:
return -ENOMEM;
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index d9deaa7..976e682 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1164,17 +1164,8 @@ static void sit_destroy_tunnels(struct sit_net *sitn, struct list_head *head)
static int sit_init_net(struct net *net)
{
+ struct sit_net *sitn = net_generic(net, sit_net_id);
int err;
- struct sit_net *sitn;
-
- err = -ENOMEM;
- sitn = kzalloc(sizeof(struct sit_net), GFP_KERNEL);
- if (sitn == NULL)
- goto err_alloc;
-
- err = net_assign_generic(net, sit_net_id, sitn);
- if (err < 0)
- goto err_assign;
sitn->tunnels[0] = sitn->tunnels_wc;
sitn->tunnels[1] = sitn->tunnels_l;
@@ -1201,37 +1192,33 @@ err_reg_dev:
dev_put(sitn->fb_tunnel_dev);
free_netdev(sitn->fb_tunnel_dev);
err_alloc_dev:
- /* nothing */
-err_assign:
- kfree(sitn);
-err_alloc:
return err;
}
static void sit_exit_net(struct net *net)
{
- struct sit_net *sitn;
+ struct sit_net *sitn = net_generic(net, sit_net_id);
LIST_HEAD(list);
- sitn = net_generic(net, sit_net_id);
rtnl_lock();
sit_destroy_tunnels(sitn, &list);
unregister_netdevice_queue(sitn->fb_tunnel_dev, &list);
unregister_netdevice_many(&list);
rtnl_unlock();
- kfree(sitn);
}
static struct pernet_operations sit_net_ops = {
.init = sit_init_net,
.exit = sit_exit_net,
+ .id = &sit_net_id,
+ .size = sizeof(struct sit_net),
};
static void __exit sit_cleanup(void)
{
xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
- unregister_pernet_gen_device(sit_net_id, &sit_net_ops);
+ unregister_pernet_device(&sit_net_ops);
rcu_barrier(); /* Wait for completion of call_rcu()'s */
}
@@ -1246,7 +1233,7 @@ static int __init sit_init(void)
return -EAGAIN;
}
- err = register_pernet_gen_device(&sit_net_id, &sit_net_ops);
+ err = register_pernet_device(&sit_net_ops);
if (err < 0)
xfrm4_tunnel_deregister(&sit_handler, AF_INET6);
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 612fc53..5b9af50 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -159,6 +159,8 @@ static inline int cookie_check(struct sk_buff *skb, __u32 cookie)
struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_options_received tcp_opt;
+ u8 *hash_location;
struct inet_request_sock *ireq;
struct inet6_request_sock *ireq6;
struct tcp_request_sock *treq;
@@ -171,7 +173,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
int mss;
struct dst_entry *dst;
__u8 rcv_wscale;
- struct tcp_options_received tcp_opt;
if (!sysctl_tcp_syncookies || !th->ack)
goto out;
@@ -254,7 +255,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
/* check for timestamp cookie support */
memset(&tcp_opt, 0, sizeof(tcp_opt));
- tcp_parse_options(skb, &tcp_opt, 0, dst);
+ tcp_parse_options(skb, &tcp_opt, &hash_location, 0, dst);
if (tcp_opt.saw_tstamp)
cookie_check_timestamp(&tcp_opt);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index de70909..aadd7ce 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -461,7 +461,8 @@ out:
}
-static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req)
+static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req,
+ struct request_values *rvp)
{
struct inet6_request_sock *treq = inet6_rsk(req);
struct ipv6_pinfo *np = inet6_sk(sk);
@@ -499,7 +500,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req)
if ((err = xfrm_lookup(sock_net(sk), &dst, &fl, sk, 0)) < 0)
goto done;
- skb = tcp_make_synack(sk, dst, req);
+ skb = tcp_make_synack(sk, dst, req, rvp);
if (skb) {
struct tcphdr *th = tcp_hdr(skb);
@@ -1161,13 +1162,15 @@ static struct sock *tcp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
*/
static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
{
+ struct tcp_extend_values tmp_ext;
+ struct tcp_options_received tmp_opt;
+ u8 *hash_location;
+ struct request_sock *req;
struct inet6_request_sock *treq;
struct ipv6_pinfo *np = inet6_sk(sk);
- struct tcp_options_received tmp_opt;
struct tcp_sock *tp = tcp_sk(sk);
- struct request_sock *req = NULL;
- __u32 isn = TCP_SKB_CB(skb)->when;
struct dst_entry *dst = __sk_dst_get(sk);
+ __u32 isn = TCP_SKB_CB(skb)->when;
#ifdef CONFIG_SYN_COOKIES
int want_cookie = 0;
#else
@@ -1205,8 +1208,52 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
tcp_clear_options(&tmp_opt);
tmp_opt.mss_clamp = IPV6_MIN_MTU - sizeof(struct tcphdr) - sizeof(struct ipv6hdr);
tmp_opt.user_mss = tp->rx_opt.user_mss;
+ tcp_parse_options(skb, &tmp_opt, &hash_location, 0, dst);
+
+ if (tmp_opt.cookie_plus > 0 &&
+ tmp_opt.saw_tstamp &&
+ !tp->rx_opt.cookie_out_never &&
+ (sysctl_tcp_cookie_size > 0 ||
+ (tp->cookie_values != NULL &&
+ tp->cookie_values->cookie_desired > 0))) {
+ u8 *c;
+ u32 *d;
+ u32 *mess = &tmp_ext.cookie_bakery[COOKIE_DIGEST_WORDS];
+ int l = tmp_opt.cookie_plus - TCPOLEN_COOKIE_BASE;
+
+ if (tcp_cookie_generator(&tmp_ext.cookie_bakery[0]) != 0)
+ goto drop_and_free;
+
+ /* Secret recipe starts with IP addresses */
+ d = &ipv6_hdr(skb)->daddr.s6_addr32[0];
+ *mess++ ^= *d++;
+ *mess++ ^= *d++;
+ *mess++ ^= *d++;
+ *mess++ ^= *d++;
+ d = &ipv6_hdr(skb)->saddr.s6_addr32[0];
+ *mess++ ^= *d++;
+ *mess++ ^= *d++;
+ *mess++ ^= *d++;
+ *mess++ ^= *d++;
+
+ /* plus variable length Initiator Cookie */
+ c = (u8 *)mess;
+ while (l-- > 0)
+ *c++ ^= *hash_location++;
- tcp_parse_options(skb, &tmp_opt, 0, dst);
+#ifdef CONFIG_SYN_COOKIES
+ want_cookie = 0; /* not our kind of cookie */
+#endif
+ tmp_ext.cookie_out_never = 0; /* false */
+ tmp_ext.cookie_plus = tmp_opt.cookie_plus;
+ } else if (!tp->rx_opt.cookie_in_always) {
+ /* redundant indications, but ensure initialization. */
+ tmp_ext.cookie_out_never = 1; /* true */
+ tmp_ext.cookie_plus = 0;
+ } else {
+ goto drop_and_free;
+ }
+ tmp_ext.cookie_in_always = tp->rx_opt.cookie_in_always;
if (want_cookie && !tmp_opt.saw_tstamp)
tcp_clear_options(&tmp_opt);
@@ -1239,23 +1286,21 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
isn = tcp_v6_init_sequence(skb);
}
-
tcp_rsk(req)->snt_isn = isn;
security_inet_conn_request(sk, skb, req);
- if (tcp_v6_send_synack(sk, req))
- goto drop;
+ if (tcp_v6_send_synack(sk, req,
+ (struct request_values *)&tmp_ext) ||
+ want_cookie)
+ goto drop_and_free;
- if (!want_cookie) {
- inet6_csk_reqsk_queue_hash_add(sk, req, TCP_TIMEOUT_INIT);
- return 0;
- }
+ inet6_csk_reqsk_queue_hash_add(sk, req, TCP_TIMEOUT_INIT);
+ return 0;
+drop_and_free:
+ reqsk_free(req);
drop:
- if (req)
- reqsk_free(req);
-
return 0; /* don't send reset */
}
@@ -1867,6 +1912,19 @@ static int tcp_v6_init_sock(struct sock *sk)
tp->af_specific = &tcp_sock_ipv6_specific;
#endif
+ /* TCP Cookie Transactions */
+ if (sysctl_tcp_cookie_size > 0) {
+ /* Default, cookies without s_data_payload. */
+ tp->cookie_values =
+ kzalloc(sizeof(*tp->cookie_values),
+ sk->sk_allocation);
+ if (tp->cookie_values != NULL)
+ kref_init(&tp->cookie_values->kref);
+ }
+ /* Presumed zeroed, in order of appearance:
+ * cookie_in_always, cookie_out_never,
+ * s_data_constant, s_data_in, s_data_out
+ */
sk->sk_sndbuf = sysctl_tcp_wmem[1];
sk->sk_rcvbuf = sysctl_tcp_rmem[1];
@@ -2126,12 +2184,17 @@ static int tcpv6_net_init(struct net *net)
static void tcpv6_net_exit(struct net *net)
{
inet_ctl_sock_destroy(net->ipv6.tcp_sk);
- inet_twsk_purge(net, &tcp_hashinfo, &tcp_death_row, AF_INET6);
+}
+
+static void tcpv6_net_exit_batch(struct list_head *net_exit_list)
+{
+ inet_twsk_purge(&tcp_hashinfo, &tcp_death_row, AF_INET6);
}
static struct pernet_operations tcpv6_net_ops = {
- .init = tcpv6_net_init,
- .exit = tcpv6_net_exit,
+ .init = tcpv6_net_init,
+ .exit = tcpv6_net_exit,
+ .exit_batch = tcpv6_net_exit_batch,
};
int __init tcpv6_init(void)
generated by cgit v1.1 at 2025-08-22 12:23:06 +0000