* (C) 2003 by Patrick Mchardy <kaber@trash.net>
* (C) 2005-2006 by Pablo Neira Ayuso <pablo@eurodev.net>
*
- * I've reworked this stuff to use attributes instead of conntrack
+ * I've reworked this stuff to use attributes instead of conntrack
* structures. 5.44 am. I need more tea. --pablo 05/07/11.
*
- * Initial connection tracking via netlink development funded and
+ * Initial connection tracking via netlink development funded and
* generally made possible by Network Robots, Inc. (www.networkrobots.com)
*
* Further development of this code funded by Astaro AG (http://www.astaro.com)
static char __initdata version[] = "0.90";
static inline int
-ctnetlink_dump_tuples_proto(struct sk_buff *skb,
+ctnetlink_dump_tuples_proto(struct sk_buff *skb,
const struct ip_conntrack_tuple *tuple,
struct ip_conntrack_protocol *proto)
{
if (likely(proto->tuple_to_nfattr))
ret = proto->tuple_to_nfattr(skb, tuple);
-
+
NFA_NEST_END(skb, nest_parms);
return ret;
const struct ip_conntrack_tuple *tuple)
{
struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_IP);
-
+
NFA_PUT(skb, CTA_IP_V4_SRC, sizeof(__be32), &tuple->src.ip);
NFA_PUT(skb, CTA_IP_V4_DST, sizeof(__be32), &tuple->dst.ip);
timeout = 0;
else
timeout = htonl(timeout_l / HZ);
-
+
NFA_PUT(skb, CTA_TIMEOUT, sizeof(timeout), &timeout);
return 0;
ip_conntrack_proto_put(proto);
return 0;
}
-
+
nest_proto = NFA_NEST(skb, CTA_PROTOINFO);
ret = proto->to_nfattr(skb, nest_proto, ct);
if (!ct->helper)
return 0;
-
+
nest_helper = NFA_NEST(skb, CTA_HELP);
NFA_PUT(skb, CTA_HELP_NAME, strlen(ct->helper->name), ct->helper->name);
ctnetlink_dump_use(struct sk_buff *skb, const struct ip_conntrack *ct)
{
__be32 use = htonl(atomic_read(&ct->ct_general.use));
-
+
NFA_PUT(skb, CTA_USE, sizeof(__be32), &use);
return 0;
static int
ctnetlink_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
- int event, int nowait,
+ int event, int nowait,
const struct ip_conntrack *ct)
{
struct nlmsghdr *nlh;
if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
goto nfattr_failure;
NFA_NEST_END(skb, nest_parms);
-
+
nest_parms = NFA_NEST(skb, CTA_TUPLE_REPLY);
if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
goto nfattr_failure;
#ifdef CONFIG_IP_NF_CONNTRACK_EVENTS
static int ctnetlink_conntrack_event(struct notifier_block *this,
- unsigned long events, void *ptr)
+ unsigned long events, void *ptr)
{
struct nlmsghdr *nlh;
struct nfgenmsg *nfmsg;
} else if (events & (IPCT_STATUS | IPCT_PROTOINFO)) {
type = IPCTNL_MSG_CT_NEW;
group = NFNLGRP_CONNTRACK_UPDATE;
- } else
+ } else
return NOTIFY_DONE;
if (!nfnetlink_has_listeners(group))
if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_ORIGINAL)) < 0)
goto nfattr_failure;
NFA_NEST_END(skb, nest_parms);
-
+
nest_parms = NFA_NEST(skb, CTA_TUPLE_REPLY);
if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
goto nfattr_failure;
if (events & IPCT_PROTOINFO
&& ctnetlink_dump_protoinfo(skb, ct) < 0)
- goto nfattr_failure;
+ goto nfattr_failure;
if ((events & IPCT_HELPER || ct->helper)
&& ctnetlink_dump_helpinfo(skb, ct) < 0)
- goto nfattr_failure;
+ goto nfattr_failure;
#ifdef CONFIG_IP_NF_CONNTRACK_MARK
if ((events & IPCT_MARK || ct->mark)
&& ctnetlink_dump_mark(skb, ct) < 0)
- goto nfattr_failure;
+ goto nfattr_failure;
#endif
if (events & IPCT_COUNTER_FILLING &&
cb->args[1] = 0;
}
if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
+ cb->nlh->nlmsg_seq,
IPCTNL_MSG_CT_NEW,
1, ct) < 0) {
nf_conntrack_get(&ct->ct_general);
};
static inline int
-ctnetlink_parse_tuple_proto(struct nfattr *attr,
+ctnetlink_parse_tuple_proto(struct nfattr *attr,
struct ip_conntrack_tuple *tuple)
{
struct nfattr *tb[CTA_PROTO_MAX];
if (likely(proto->nfattr_to_tuple))
ret = proto->nfattr_to_tuple(tb, tuple);
-
+
ip_conntrack_proto_put(proto);
-
+
return ret;
}
int err;
memset(range, 0, sizeof(*range));
-
+
nfattr_parse_nested(tb, CTA_NAT_MAX, nat);
if (nfattr_bad_size(tb, CTA_NAT_MAX, cta_min_nat))
};
static int
-ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
+ctnetlink_del_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
{
struct ip_conntrack_tuple_hash *h;
return -ENOENT;
ct = tuplehash_to_ctrack(h);
-
+
if (cda[CTA_ID-1]) {
u_int32_t id = ntohl(*(__be32 *)NFA_DATA(cda[CTA_ID-1]));
if (ct->id != id) {
ip_conntrack_put(ct);
return -ENOENT;
}
- }
+ }
if (del_timer(&ct->timeout))
ct->timeout.function((unsigned long)ct);
}
static int
-ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
+ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
{
struct ip_conntrack_tuple_hash *h;
return -ENOTSUPP;
#endif
if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_dump_table,
- ctnetlink_done)) != 0)
+ ctnetlink_dump_table,
+ ctnetlink_done)) != 0)
return -EINVAL;
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
return -ENOMEM;
}
- err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq,
+ err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq,
IPCTNL_MSG_CT_NEW, 1, ct);
ip_conntrack_put(ct);
if (err <= 0)
if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
/* unchangeable */
return -EINVAL;
-
+
if (d & IPS_SEEN_REPLY && !(status & IPS_SEEN_REPLY))
/* SEEN_REPLY bit can only be set */
return -EINVAL;
-
+
if (d & IPS_ASSURED && !(status & IPS_ASSURED))
/* ASSURED bit can only be set */
return -EINVAL;
memset(&ct->help, 0, sizeof(ct->help));
}
}
-
+
ct->helper = helper;
return 0;
ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[])
{
u_int32_t timeout = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));
-
+
if (!del_timer(&ct->timeout))
return -ETIME;
if (proto->from_nfattr)
err = proto->from_nfattr(tb, ct);
- ip_conntrack_proto_put(proto);
+ ip_conntrack_proto_put(proto);
return err;
}
}
static int
-ctnetlink_create_conntrack(struct nfattr *cda[],
+ctnetlink_create_conntrack(struct nfattr *cda[],
struct ip_conntrack_tuple *otuple,
struct ip_conntrack_tuple *rtuple)
{
ct = ip_conntrack_alloc(otuple, rtuple);
if (ct == NULL || IS_ERR(ct))
- return -ENOMEM;
+ return -ENOMEM;
if (!cda[CTA_TIMEOUT-1])
goto err;
return 0;
-err:
+err:
ip_conntrack_free(ct);
return err;
}
-static int
-ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
+static int
+ctnetlink_new_conntrack(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
{
struct ip_conntrack_tuple otuple, rtuple;
return err;
}
-/***********************************************************************
- * EXPECT
- ***********************************************************************/
+/***********************************************************************
+ * EXPECT
+ ***********************************************************************/
static inline int
ctnetlink_exp_dump_tuple(struct sk_buff *skb,
enum ctattr_expect type)
{
struct nfattr *nest_parms = NFA_NEST(skb, type);
-
+
if (ctnetlink_dump_tuples(skb, tuple) < 0)
goto nfattr_failure;
nfattr_failure:
return -1;
-}
+}
static inline int
ctnetlink_exp_dump_mask(struct sk_buff *skb,
static inline int
ctnetlink_exp_dump_expect(struct sk_buff *skb,
- const struct ip_conntrack_expect *exp)
+ const struct ip_conntrack_expect *exp)
{
struct ip_conntrack *master = exp->master;
__be32 timeout = htonl((exp->timeout.expires - jiffies) / HZ);
&master->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
CTA_EXPECT_MASTER) < 0)
goto nfattr_failure;
-
+
NFA_PUT(skb, CTA_EXPECT_TIMEOUT, sizeof(__be32), &timeout);
NFA_PUT(skb, CTA_EXPECT_ID, sizeof(__be32), &id);
return 0;
-
+
nfattr_failure:
return -1;
}
static int
ctnetlink_exp_fill_info(struct sk_buff *skb, u32 pid, u32 seq,
- int event,
- int nowait,
+ int event,
+ int nowait,
const struct ip_conntrack_expect *exp)
{
struct nlmsghdr *nlh;
goto out;
*id = exp->id;
}
-out:
+out:
read_unlock_bh(&ip_conntrack_lock);
return skb->len;
};
static int
-ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
+ctnetlink_get_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
{
struct ip_conntrack_tuple tuple;
return -EAFNOSUPPORT;
if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_exp_dump_table,
+ ctnetlink_exp_dump_table,
ctnetlink_done)) != 0)
return -EINVAL;
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
ip_conntrack_expect_put(exp);
return -ENOENT;
}
- }
+ }
err = -ENOMEM;
skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb2)
goto out;
- err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid,
+ err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid,
nlh->nlmsg_seq, IPCTNL_MSG_EXP_NEW,
1, exp);
if (err <= 0)
}
static int
-ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
+ctnetlink_del_expect(struct sock *ctnl, struct sk_buff *skb,
struct nlmsghdr *nlh, struct nfattr *cda[], int *errp)
{
struct ip_conntrack_expect *exp, *tmp;
/* after list removal, usage count == 1 */
ip_conntrack_unexpect_related(exp);
- /* have to put what we 'get' above.
+ /* have to put what we 'get' above.
* after this line usage count == 0 */
ip_conntrack_expect_put(exp);
} else if (cda[CTA_EXPECT_HELP_NAME-1]) {
}
list_for_each_entry_safe(exp, tmp, &ip_conntrack_expect_list,
list) {
- if (exp->master->helper == h
+ if (exp->master->helper == h
&& del_timer(&exp->timeout)) {
ip_ct_unlink_expect(exp);
ip_conntrack_expect_put(exp);
err = -ENOMEM;
goto out;
}
-
+
exp->expectfn = NULL;
exp->flags = 0;
exp->master = ct;
err = ip_conntrack_expect_related(exp);
ip_conntrack_expect_put(exp);
-out:
+out:
ip_conntrack_put(tuplehash_to_ctrack(h));
return err;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff