* (C) 2001 by Jay Schulist <jschlst@samba.org>
* (C) 2002-2005 by Harald Welte <laforge@gnumonks.org>
* (C) 2003 by Patrick Mchardy <kaber@trash.net>
- * (C) 2005 by Pablo Neira Ayuso <pablo@eurodev.net>
+ * (C) 2005
-2006 by Pablo Neira Ayuso <pablo@eurodev.net>
*
* I've reworked this stuff to use attributes instead of conntrack
* structures. 5.44 am. I need more tea. --pablo 05/07/11.
static char __initdata version[] = "0.90";
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(format, args...)
-#endif
-
-
static inline int
ctnetlink_dump_tuples_proto(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple)
+ const struct ip_conntrack_tuple *tuple,
+ struct ip_conntrack_protocol *proto)
{
- struct ip_conntrack_protocol *proto;
int ret = 0;
+ struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_PROTO);
NFA_PUT(skb, CTA_PROTO_NUM, sizeof(u_int8_t), &tuple->dst.protonum);
- /* If no protocol helper is found, this function will return the
- * generic protocol helper, so proto won't *ever* be NULL */
- proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
if (likely(proto->tuple_to_nfattr))
ret = proto->tuple_to_nfattr(skb, tuple);
- ip_conntrack_proto_put(proto);
+ NFA_NEST_END(skb, nest_parms);
return ret;
}
static inline int
-ctnetlink_dump_tuples(struct sk_buff *skb,
- const struct ip_conntrack_tuple *tuple)
+ctnetlink_dump_tuples_ip(struct sk_buff *skb,
+ const struct ip_conntrack_tuple *tuple)
{
- struct nfattr *nest_parms;
- int ret;
+ struct nfattr *nest_parms = NFA_NEST(skb, CTA_TUPLE_IP);
- nest_parms = NFA_NEST(skb, CTA_TUPLE_IP);
- NFA_PUT(skb, CTA_IP_V4_SRC, sizeof(u_int32_t), &tuple->src.ip);
- NFA_PUT(skb, CTA_IP_V4_DST, sizeof(u_int32_t), &tuple->dst.ip);
- NFA_NEST_END(skb, nest_parms);
+ NFA_PUT(skb, CTA_IP_V4_SRC, sizeof(__be32), &tuple->src.ip);
+ NFA_PUT(skb, CTA_IP_V4_DST, sizeof(__be32), &tuple->dst.ip);
- nest_parms = NFA_NEST(skb, CTA_TUPLE_PROTO);
- ret = ctnetlink_dump_tuples_proto(skb, tuple);
NFA_NEST_END(skb, nest_parms);
- return ret;
+ return 0;
nfattr_failure:
return -1;
}
+static inline int
+ctnetlink_dump_tuples(struct sk_buff *skb,
+ const struct ip_conntrack_tuple *tuple)
+{
+ int ret;
+ struct ip_conntrack_protocol *proto;
+
+ ret = ctnetlink_dump_tuples_ip(skb, tuple);
+ if (unlikely(ret < 0))
+ return ret;
+
+ proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
+ ret = ctnetlink_dump_tuples_proto(skb, tuple, proto);
+ ip_conntrack_proto_put(proto);
+
+ return ret;
+}
+
static inline int
ctnetlink_dump_status(struct sk_buff *skb, const struct ip_conntrack *ct)
{
- u_int32_t status = htonl((u_int32_t) ct->status);
+ __be32 status = htonl((u_int32_t) ct->status);
NFA_PUT(skb, CTA_STATUS, sizeof(status), &status);
return 0;
ctnetlink_dump_timeout(struct sk_buff *skb, const struct ip_conntrack *ct)
{
long timeout_l = ct->timeout.expires - jiffies;
- u_int32_t timeout;
+ __be32 timeout;
if (timeout_l < 0)
timeout = 0;
return ret;
nfattr_failure:
+ ip_conntrack_proto_put(proto);
return -1;
}
{
enum ctattr_type type = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG;
struct nfattr *nest_count = NFA_NEST(skb, type);
- u_int32_t tmp;
+ __be32 tmp;
tmp = htonl(ct->counters[dir].packets);
- NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(u_int32_t), &tmp);
+ NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(__be32), &tmp);
tmp = htonl(ct->counters[dir].bytes);
- NFA_PUT(skb, CTA_COUNTERS32_BYTES, sizeof(u_int32_t), &tmp);
+ NFA_PUT(skb, CTA_COUNTERS32_BYTES, sizeof(__be32), &tmp);
NFA_NEST_END(skb, nest_count);
static inline int
ctnetlink_dump_mark(struct sk_buff *skb, const struct ip_conntrack *ct)
{
- u_int32_t mark = htonl(ct->mark);
+ __be32 mark = htonl(ct->mark);
- NFA_PUT(skb, CTA_MARK, sizeof(u_int32_t), &mark);
+ NFA_PUT(skb, CTA_MARK, sizeof(__be32), &mark);
return 0;
nfattr_failure:
static inline int
ctnetlink_dump_id(struct sk_buff *skb, const struct ip_conntrack *ct)
{
- u_int32_t id = htonl(ct->id);
- NFA_PUT(skb, CTA_ID, sizeof(u_int32_t), &id);
+ __be32 id = htonl(ct->id);
+ NFA_PUT(skb, CTA_ID, sizeof(__be32), &id);
return 0;
nfattr_failure:
static inline int
ctnetlink_dump_use(struct sk_buff *skb, const struct ip_conntrack *ct)
{
- u_int32_t use = htonl(atomic_read(&ct->ct_general.use));
+ __be32 use = htonl(atomic_read(&ct->ct_general.use));
- NFA_PUT(skb, CTA_USE, sizeof(u_int32_t), &use);
+ NFA_PUT(skb, CTA_USE, sizeof(__be32), &use);
return 0;
nfattr_failure:
} else if (events & (IPCT_NEW | IPCT_RELATED)) {
type = IPCTNL_MSG_CT_NEW;
flags = NLM_F_CREATE|NLM_F_EXCL;
- /* dump everything */
- events = ~0UL;
group = NFNLGRP_CONNTRACK_NEW;
- } else if (events & (IPCT_STATUS |
- IPCT_PROTOINFO |
- IPCT_HELPER |
- IPCT_HELPINFO |
- IPCT_NATINFO)) {
+ } else if (events & (IPCT_STATUS | IPCT_PROTOINFO)) {
type = IPCTNL_MSG_CT_NEW;
group = NFNLGRP_CONNTRACK_UPDATE;
} else
return NOTIFY_DONE;
-
- /* FIXME: Check if there are any listeners before, don't hurt performance */
-
+
+ if (!nfnetlink_has_listeners(group))
+ return NOTIFY_DONE;
+
skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
if (!skb)
return NOTIFY_DONE;
if (ctnetlink_dump_tuples(skb, tuple(ct, IP_CT_DIR_REPLY)) < 0)
goto nfattr_failure;
NFA_NEST_END(skb, nest_parms);
-
- /* NAT stuff is now a status flag */
- if ((events & IPCT_STATUS || events & IPCT_NATINFO)
- && ctnetlink_dump_status(skb, ct) < 0)
- goto nfattr_failure;
- if (events & IPCT_REFRESH
- && ctnetlink_dump_timeout(skb, ct) < 0)
- goto nfattr_failure;
- if (events & IPCT_PROTOINFO
- && ctnetlink_dump_protoinfo(skb, ct) < 0)
- goto nfattr_failure;
- if (events & IPCT_HELPINFO
- && ctnetlink_dump_helpinfo(skb, ct) < 0)
- goto nfattr_failure;
- if (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
- ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0)
- goto nfattr_failure;
+ if (events & IPCT_DESTROY) {
+ if (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
+ ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0)
+ goto nfattr_failure;
+ } else {
+ if (ctnetlink_dump_status(skb, ct) < 0)
+ goto nfattr_failure;
+
+ if (ctnetlink_dump_timeout(skb, ct) < 0)
+ goto nfattr_failure;
+
+ if (events & IPCT_PROTOINFO
+ && ctnetlink_dump_protoinfo(skb, ct) < 0)
+ goto nfattr_failure;
+
+ if ((events & IPCT_HELPER || ct->helper)
+ && ctnetlink_dump_helpinfo(skb, ct) < 0)
+ goto nfattr_failure;
+
+#ifdef CONFIG_IP_NF_CONNTRACK_MARK
+ if ((events & IPCT_MARK || ct->mark)
+ && ctnetlink_dump_mark(skb, ct) < 0)
+ goto nfattr_failure;
+#endif
+
+ if (events & IPCT_COUNTER_FILLING &&
+ (ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL) < 0 ||
+ ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY) < 0))
+ goto nfattr_failure;
+ }
nlh->nlmsg_len = skb->tail - b;
nfnetlink_send(skb, 0, group, 0);
static int ctnetlink_done(struct netlink_callback *cb)
{
- DEBUGP("entered %s\n", __FUNCTION__);
+ if (cb->args[1])
+ ip_conntrack_put((struct ip_conntrack *)cb->args[1]);
return 0;
}
static int
ctnetlink_dump_table(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct ip_conntrack *ct = NULL;
+ struct ip_conntrack *ct, *last;
struct ip_conntrack_tuple_hash *h;
struct list_head *i;
- u_int32_t *id = (u_int32_t *) &cb->args[1];
-
- DEBUGP("entered %s, last bucket=%lu id=%u\n", __FUNCTION__,
- cb->args[0], *id);
read_lock_bh(&ip_conntrack_lock);
- for (; cb->args[0] < ip_conntrack_htable_size; cb->args[0]++, *id = 0) {
+ last = (struct ip_conntrack *)cb->args[1];
+ for (; cb->args[0] < ip_conntrack_htable_size; cb->args[0]++) {
+restart:
list_for_each_prev(i, &ip_conntrack_hash[cb->args[0]]) {
h = (struct ip_conntrack_tuple_hash *) i;
if (DIRECTION(h) != IP_CT_DIR_ORIGINAL)
continue;
ct = tuplehash_to_ctrack(h);
- if (ct->id <= *id)
- continue;
+ if (cb->args[1]) {
+ if (ct != last)
+ continue;
+ cb->args[1] = 0;
+ }
if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
cb->nlh->nlmsg_seq,
IPCTNL_MSG_CT_NEW,
- 1, ct) < 0)
+ 1, ct) < 0) {
+ nf_conntrack_get(&ct->ct_general);
+ cb->args[1] = (unsigned long)ct;
goto out;
- *id = ct->id;
+ }
+#ifdef CONFIG_NF_CT_ACCT
+ if (NFNL_MSG_TYPE(cb->nlh->nlmsg_type) ==
+ IPCTNL_MSG_CT_GET_CTRZERO)
+ memset(&ct->counters, 0, sizeof(ct->counters));
+#endif
}
- }
-out:
- read_unlock_bh(&ip_conntrack_lock);
-
- DEBUGP("leaving, last bucket=%lu id=%u\n", cb->args[0], *id);
-
- return skb->len;
-}
-
-#ifdef CONFIG_IP_NF_CT_ACCT
-static int
-ctnetlink_dump_table_w(struct sk_buff *skb, struct netlink_callback *cb)
-{
- struct ip_conntrack *ct = NULL;
- struct ip_conntrack_tuple_hash *h;
- struct list_head *i;
- u_int32_t *id = (u_int32_t *) &cb->args[1];
-
- DEBUGP("entered %s, last bucket=%u id=%u\n", __FUNCTION__,
- cb->args[0], *id);
-
- write_lock_bh(&ip_conntrack_lock);
- for (; cb->args[0] < ip_conntrack_htable_size; cb->args[0]++, *id = 0) {
- list_for_each_prev(i, &ip_conntrack_hash[cb->args[0]]) {
- h = (struct ip_conntrack_tuple_hash *) i;
- if (DIRECTION(h) != IP_CT_DIR_ORIGINAL)
- continue;
- ct = tuplehash_to_ctrack(h);
- if (ct->id <= *id)
- continue;
- if (ctnetlink_fill_info(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq,
- IPCTNL_MSG_CT_NEW,
- 1, ct) < 0)
- goto out;
- *id = ct->id;
-
- memset(&ct->counters, 0, sizeof(ct->counters));
+ if (cb->args[1]) {
+ cb->args[1] = 0;
+ goto restart;
}
}
-out:
- write_unlock_bh(&ip_conntrack_lock);
-
- DEBUGP("leaving, last bucket=%lu id=%u\n", cb->args[0], *id);
+out:
+ read_unlock_bh(&ip_conntrack_lock);
+ if (last)
+ ip_conntrack_put(last);
return skb->len;
}
-#endif
static const size_t cta_min_ip[CTA_IP_MAX] = {
- [CTA_IP_V4_SRC-1] = sizeof(u_int32_t),
- [CTA_IP_V4_DST-1] = sizeof(u_int32_t),
+ [CTA_IP_V4_SRC-1] = sizeof(__be32),
+ [CTA_IP_V4_DST-1] = sizeof(__be32),
};
static inline int
{
struct nfattr *tb[CTA_IP_MAX];
- DEBUGP("entered %s\n", __FUNCTION__);
-
nfattr_parse_nested(tb, CTA_IP_MAX, attr);
if (nfattr_bad_size(tb, CTA_IP_MAX, cta_min_ip))
if (!tb[CTA_IP_V4_SRC-1])
return -EINVAL;
- tuple->src.ip = *(u_int32_t *)NFA_DATA(tb[CTA_IP_V4_SRC-1]);
+ tuple->src.ip = *(__be32 *)NFA_DATA(tb[CTA_IP_V4_SRC-1]);
if (!tb[CTA_IP_V4_DST-1])
return -EINVAL;
- tuple->dst.ip = *(u_int32_t *)NFA_DATA(tb[CTA_IP_V4_DST-1]);
-
- DEBUGP("leaving\n");
+ tuple->dst.ip = *(__be32 *)NFA_DATA(tb[CTA_IP_V4_DST-1]);
return 0;
}
struct ip_conntrack_protocol *proto;
int ret = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
nfattr_parse_nested(tb, CTA_PROTO_MAX, attr);
if (nfattr_bad_size(tb, CTA_PROTO_MAX, cta_min_proto))
struct nfattr *tb[CTA_TUPLE_MAX];
int err;
- DEBUGP("entered %s\n", __FUNCTION__);
-
memset(tuple, 0, sizeof(*tuple));
nfattr_parse_nested(tb, CTA_TUPLE_MAX, cda[type-1]);
else
tuple->dst.dir = IP_CT_DIR_ORIGINAL;
- DUMP_TUPLE(tuple);
-
- DEBUGP("leaving\n");
-
return 0;
}
struct nfattr *tb[CTA_PROTONAT_MAX];
struct ip_nat_protocol *npt;
- DEBUGP("entered %s\n", __FUNCTION__);
-
nfattr_parse_nested(tb, CTA_PROTONAT_MAX, attr);
if (nfattr_bad_size(tb, CTA_PROTONAT_MAX, cta_min_protonat))
ip_nat_proto_put(npt);
- DEBUGP("leaving\n");
return 0;
}
static const size_t cta_min_nat[CTA_NAT_MAX] = {
- [CTA_NAT_MINIP-1] = sizeof(u_int32_t),
- [CTA_NAT_MAXIP-1] = sizeof(u_int32_t),
+ [CTA_NAT_MINIP-1] = sizeof(__be32),
+ [CTA_NAT_MAXIP-1] = sizeof(__be32),
};
static inline int
-ctnetlink_parse_nat(struct nfattr *cda[],
+ctnetlink_parse_nat(struct nfattr *nat,
const struct ip_conntrack *ct, struct ip_nat_range *range)
{
struct nfattr *tb[CTA_NAT_MAX];
int err;
- DEBUGP("entered %s\n", __FUNCTION__);
-
memset(range, 0, sizeof(*range));
- nfattr_parse_nested(tb, CTA_NAT_MAX, cda[CTA_NAT-1]);
+ nfattr_parse_nested(tb, CTA_NAT_MAX, nat);
if (nfattr_bad_size(tb, CTA_NAT_MAX, cta_min_nat))
return -EINVAL;
if (tb[CTA_NAT_MINIP-1])
- range->min_ip = *(u_int32_t *)NFA_DATA(tb[CTA_NAT_MINIP-1]);
+ range->min_ip = *(__be32 *)NFA_DATA(tb[CTA_NAT_MINIP-1]);
if (!tb[CTA_NAT_MAXIP-1])
range->max_ip = range->min_ip;
else
- range->max_ip = *(u_int32_t *)NFA_DATA(tb[CTA_NAT_MAXIP-1]);
+ range->max_ip = *(__be32 *)NFA_DATA(tb[CTA_NAT_MAXIP-1]);
if (range->min_ip)
range->flags |= IP_NAT_RANGE_MAP_IPS;
if (err < 0)
return err;
- DEBUGP("leaving\n");
return 0;
}
#endif
{
struct nfattr *tb[CTA_HELP_MAX];
- DEBUGP("entered %s\n", __FUNCTION__);
-
nfattr_parse_nested(tb, CTA_HELP_MAX, attr);
if (!tb[CTA_HELP_NAME-1])
}
static const size_t cta_min[CTA_MAX] = {
- [CTA_STATUS-1] = sizeof(u_int32_t),
- [CTA_TIMEOUT-1] = sizeof(u_int32_t),
- [CTA_MARK-1] = sizeof(u_int32_t),
- [CTA_USE-1] = sizeof(u_int32_t),
- [CTA_ID-1] = sizeof(u_int32_t)
+ [CTA_STATUS-1] = sizeof(__be32),
+ [CTA_TIMEOUT-1] = sizeof(__be32),
+ [CTA_MARK-1] = sizeof(__be32),
+ [CTA_USE-1] = sizeof(__be32),
+ [CTA_ID-1] = sizeof(__be32)
};
static int
struct ip_conntrack *ct;
int err = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
if (nfattr_bad_size(cda, CTA_MAX, cta_min))
return -EINVAL;
return err;
h = ip_conntrack_find_get(&tuple, NULL);
- if (!h) {
- DEBUGP("tuple not found in conntrack hash\n");
+ if (!h)
return -ENOENT;
- }
ct = tuplehash_to_ctrack(h);
if (cda[CTA_ID-1]) {
- u_int32_t id = ntohl(*(u_int32_t *)NFA_DATA(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;
ct->timeout.function((unsigned long)ct);
ip_conntrack_put(ct);
- DEBUGP("leaving\n");
return 0;
}
struct sk_buff *skb2 = NULL;
int err = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
if (nlh->nlmsg_flags & NLM_F_DUMP) {
struct nfgenmsg *msg = NLMSG_DATA(nlh);
u32 rlen;
if (msg->nfgen_family != AF_INET)
return -EAFNOSUPPORT;
- if (NFNL_MSG_TYPE(nlh->nlmsg_type) ==
- IPCTNL_MSG_CT_GET_CTRZERO) {
-#ifdef CONFIG_IP_NF_CT_ACCT
- if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_dump_table_w,
- ctnetlink_done)) != 0)
- return -EINVAL;
-#else
+#ifndef CONFIG_IP_NF_CT_ACCT
+ if (NFNL_MSG_TYPE(nlh->nlmsg_type) == IPCTNL_MSG_CT_GET_CTRZERO)
return -ENOTSUPP;
#endif
- } else {
- if ((*errp = netlink_dump_start(ctnl, skb, nlh,
- ctnetlink_dump_table,
- ctnetlink_done)) != 0)
+ if ((*errp = netlink_dump_start(ctnl, skb, nlh,
+ ctnetlink_dump_table,
+ ctnetlink_done)) != 0)
return -EINVAL;
- }
rlen = NLMSG_ALIGN(nlh->nlmsg_len);
if (rlen > skb->len)
return err;
h = ip_conntrack_find_get(&tuple, NULL);
- if (!h) {
- DEBUGP("tuple not found in conntrack hash");
+ if (!h)
return -ENOENT;
- }
- DEBUGP("tuple found\n");
+
ct = tuplehash_to_ctrack(h);
err = -ENOMEM;
ip_conntrack_put(ct);
return -ENOMEM;
}
- NETLINK_CB(skb2).dst_pid = NETLINK_CB(skb).pid;
err = ctnetlink_fill_info(skb2, NETLINK_CB(skb).pid, nlh->nlmsg_seq,
IPCTNL_MSG_CT_NEW, 1, ct);
if (err < 0)
goto out;
- DEBUGP("leaving\n");
return 0;
free:
ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[])
{
unsigned long d;
- unsigned status = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]));
+ unsigned status = ntohl(*(__be32 *)NFA_DATA(cda[CTA_STATUS-1]));
d = ct->status ^ status;
if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
/* ASSURED bit can only be set */
return -EINVAL;
- if (cda[CTA_NAT-1]) {
+ if (cda[CTA_NAT_SRC-1] || cda[CTA_NAT_DST-1]) {
#ifndef CONFIG_IP_NF_NAT_NEEDED
return -EINVAL;
#else
- unsigned int hooknum;
struct ip_nat_range range;
- if (ctnetlink_parse_nat(cda, ct, &range) < 0)
- return -EINVAL;
-
- DEBUGP("NAT: %u.%u.%u.%u-%u.%u.%u.%u:%u-%u\n",
- NIPQUAD(range.min_ip), NIPQUAD(range.max_ip),
- htons(range.min.all), htons(range.max.all));
-
- /* This is tricky but it works. ip_nat_setup_info needs the
- * hook number as parameter, so let's do the correct
- * conversion and run away */
- if (status & IPS_SRC_NAT_DONE)
- hooknum = NF_IP_POST_ROUTING; /* IP_NAT_MANIP_SRC */
- else if (status & IPS_DST_NAT_DONE)
- hooknum = NF_IP_PRE_ROUTING; /* IP_NAT_MANIP_DST */
- else
- return -EINVAL; /* Missing NAT flags */
-
- DEBUGP("NAT status: %lu\n",
- status & (IPS_NAT_MASK | IPS_NAT_DONE_MASK));
-
- if (ip_nat_initialized(ct, HOOK2MANIP(hooknum)))
- return -EEXIST;
- ip_nat_setup_info(ct, &range, hooknum);
-
- DEBUGP("NAT status after setup_info: %lu\n",
- ct->status & (IPS_NAT_MASK | IPS_NAT_DONE_MASK));
+ if (cda[CTA_NAT_DST-1]) {
+ if (ctnetlink_parse_nat(cda[CTA_NAT_DST-1], ct,
+ &range) < 0)
+ return -EINVAL;
+ if (ip_nat_initialized(ct,
+ HOOK2MANIP(NF_IP_PRE_ROUTING)))
+ return -EEXIST;
+ ip_nat_setup_info(ct, &range, NF_IP_PRE_ROUTING);
+ }
+ if (cda[CTA_NAT_SRC-1]) {
+ if (ctnetlink_parse_nat(cda[CTA_NAT_SRC-1], ct,
+ &range) < 0)
+ return -EINVAL;
+ if (ip_nat_initialized(ct,
+ HOOK2MANIP(NF_IP_POST_ROUTING)))
+ return -EEXIST;
+ ip_nat_setup_info(ct, &range, NF_IP_POST_ROUTING);
+ }
#endif
}
char *helpname;
int err;
- DEBUGP("entered %s\n", __FUNCTION__);
-
/* don't change helper of sibling connections */
if (ct->master)
return -EINVAL;
static inline int
ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[])
{
- u_int32_t timeout = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_TIMEOUT-1]));
+ u_int32_t timeout = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));
if (!del_timer(&ct->timeout))
return -ETIME;
{
int err;
- DEBUGP("entered %s\n", __FUNCTION__);
-
if (cda[CTA_HELP-1]) {
err = ctnetlink_change_helper(ct, cda);
if (err < 0)
#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
if (cda[CTA_MARK-1])
- ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
+ ct->mark = ntohl(*(__be32 *)NFA_DATA(cda[CTA_MARK-1]));
#endif
- DEBUGP("all done\n");
return 0;
}
struct ip_conntrack *ct;
int err = -EINVAL;
- DEBUGP("entered %s\n", __FUNCTION__);
-
ct = ip_conntrack_alloc(otuple, rtuple);
if (ct == NULL || IS_ERR(ct))
return -ENOMEM;
if (!cda[CTA_TIMEOUT-1])
goto err;
- ct->timeout.expires = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_TIMEOUT-1]));
+ ct->timeout.expires = ntohl(*(__be32 *)NFA_DATA(cda[CTA_TIMEOUT-1]));
ct->timeout.expires = jiffies + ct->timeout.expires * HZ;
ct->status |= IPS_CONFIRMED;
- err = ctnetlink_change_status(ct, cda);
- if (err < 0)
- goto err;
+ if (cda[CTA_STATUS-1]) {
+ err = ctnetlink_change_status(ct, cda);
+ if (err < 0)
+ goto err;
+ }
if (cda[CTA_PROTOINFO-1]) {
err = ctnetlink_change_protoinfo(ct, cda);
if (err < 0)
- return err;
+ goto err;
}
#if defined(CONFIG_IP_NF_CONNTRACK_MARK)
if (cda[CTA_MARK-1])
- ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
+ ct->mark = ntohl(*(__be32 *)NFA_DATA(cda[CTA_MARK-1]));
#endif
ct->helper = ip_conntrack_helper_find_get(rtuple);
if (ct->helper)
ip_conntrack_helper_put(ct->helper);
- DEBUGP("conntrack with id %u inserted\n", ct->id);
return 0;
err:
struct ip_conntrack_tuple_hash *h = NULL;
int err = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
if (nfattr_bad_size(cda, CTA_MAX, cta_min))
return -EINVAL;
if (h == NULL) {
write_unlock_bh(&ip_conntrack_lock);
- DEBUGP("no such conntrack, create new\n");
err = -ENOENT;
if (nlh->nlmsg_flags & NLM_F_CREATE)
err = ctnetlink_create_conntrack(cda, &otuple, &rtuple);
/* implicit 'else' */
/* we only allow nat config for new conntracks */
- if (cda[CTA_NAT-1]) {
+ if (cda[CTA_NAT_SRC-1] || cda[CTA_NAT_DST-1]) {
err = -EINVAL;
goto out_unlock;
}
/* We manipulate the conntrack inside the global conntrack table lock,
* so there's no need to increase the refcount */
- DEBUGP("conntrack found\n");
err = -EEXIST;
if (!(nlh->nlmsg_flags & NLM_F_EXCL))
err = ctnetlink_change_conntrack(tuplehash_to_ctrack(h), cda);
return -1;
}
+static inline int
+ctnetlink_exp_dump_mask(struct sk_buff *skb,
+ const struct ip_conntrack_tuple *tuple,
+ const struct ip_conntrack_tuple *mask)
+{
+ int ret;
+ struct ip_conntrack_protocol *proto;
+ struct nfattr *nest_parms = NFA_NEST(skb, CTA_EXPECT_MASK);
+
+ ret = ctnetlink_dump_tuples_ip(skb, mask);
+ if (unlikely(ret < 0))
+ goto nfattr_failure;
+
+ proto = ip_conntrack_proto_find_get(tuple->dst.protonum);
+ ret = ctnetlink_dump_tuples_proto(skb, mask, proto);
+ ip_conntrack_proto_put(proto);
+ if (unlikely(ret < 0))
+ goto nfattr_failure;
+
+ NFA_NEST_END(skb, nest_parms);
+
+ return 0;
+
+nfattr_failure:
+ return -1;
+}
+
static inline int
ctnetlink_exp_dump_expect(struct sk_buff *skb,
const struct ip_conntrack_expect *exp)
{
struct ip_conntrack *master = exp->master;
- u_int32_t timeout = htonl((exp->timeout.expires - jiffies) / HZ);
- u_int32_t id = htonl(exp->id);
+ __be32 timeout = htonl((exp->timeout.expires - jiffies) / HZ);
+ __be32 id = htonl(exp->id);
if (ctnetlink_exp_dump_tuple(skb, &exp->tuple, CTA_EXPECT_TUPLE) < 0)
goto nfattr_failure;
- if (ctnetlink_exp_dump_tuple(skb, &exp->mask, CTA_EXPECT_MASK) < 0)
+ if (ctnetlink_exp_dump_mask(skb, &exp->tuple, &exp->mask) < 0)
goto nfattr_failure;
if (ctnetlink_exp_dump_tuple(skb,
&master->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
CTA_EXPECT_MASTER) < 0)
goto nfattr_failure;
- NFA_PUT(skb, CTA_EXPECT_TIMEOUT, sizeof(timeout), &timeout);
- NFA_PUT(skb, CTA_EXPECT_ID, sizeof(u_int32_t), &id);
+ NFA_PUT(skb, CTA_EXPECT_TIMEOUT, sizeof(__be32), &timeout);
+ NFA_PUT(skb, CTA_EXPECT_ID, sizeof(__be32), &id);
return 0;
} else
return NOTIFY_DONE;
+ if (!nfnetlink_has_listeners(NFNLGRP_CONNTRACK_EXP_NEW))
+ return NOTIFY_DONE;
+
skb = alloc_skb(NLMSG_GOODSIZE, GFP_ATOMIC);
if (!skb)
return NOTIFY_DONE;
struct list_head *i;
u_int32_t *id = (u_int32_t *) &cb->args[0];
- DEBUGP("entered %s, last id=%llu\n", __FUNCTION__, *id);
-
read_lock_bh(&ip_conntrack_lock);
list_for_each_prev(i, &ip_conntrack_expect_list) {
exp = (struct ip_conntrack_expect *) i;
out:
read_unlock_bh(&ip_conntrack_lock);
- DEBUGP("leaving, last id=%llu\n", *id);
-
return skb->len;
}
static const size_t cta_min_exp[CTA_EXPECT_MAX] = {
- [CTA_EXPECT_TIMEOUT-1] = sizeof(u_int32_t),
- [CTA_EXPECT_ID-1] = sizeof(u_int32_t)
+ [CTA_EXPECT_TIMEOUT-1] = sizeof(__be32),
+ [CTA_EXPECT_ID-1] = sizeof(__be32)
};
static int
struct sk_buff *skb2;
int err = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
if (nfattr_bad_size(cda, CTA_EXPECT_MAX, cta_min_exp))
return -EINVAL;
if (err < 0)
return err;
- exp = ip_conntrack_expect_find(&tuple);
+ exp = ip_conntrack_expect_find_get(&tuple);
if (!exp)
return -ENOENT;
if (cda[CTA_EXPECT_ID-1]) {
- u_int32_t id = *(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
+ __be32 id = *(__be32 *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
if (exp->id != ntohl(id)) {
ip_conntrack_expect_put(exp);
return -ENOENT;
skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
if (!skb2)
goto out;
- NETLINK_CB(skb2).dst_pid = NETLINK_CB(skb).pid;
-
+
err = ctnetlink_exp_fill_info(skb2, NETLINK_CB(skb).pid,
nlh->nlmsg_seq, IPCTNL_MSG_EXP_NEW,
1, exp);
return err;
/* bump usage count to 2 */
- exp = ip_conntrack_expect_find(&tuple);
+ exp = ip_conntrack_expect_find_get(&tuple);
if (!exp)
return -ENOENT;
if (cda[CTA_EXPECT_ID-1]) {
- u_int32_t id =
- *(u_int32_t *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
+ __be32 id =
+ *(__be32 *)NFA_DATA(cda[CTA_EXPECT_ID-1]);
if (exp->id != ntohl(id)) {
ip_conntrack_expect_put(exp);
return -ENOENT;
struct ip_conntrack *ct;
int err = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
/* caller guarantees that those three CTA_EXPECT_* exist */
err = ctnetlink_parse_tuple(cda, &tuple, CTA_EXPECT_TUPLE);
if (err < 0)
struct ip_conntrack_expect *exp;
int err = 0;
- DEBUGP("entered %s\n", __FUNCTION__);
-
if (nfattr_bad_size(cda, CTA_EXPECT_MAX, cta_min_exp))
return -EINVAL;
err = ctnetlink_change_expect(exp, cda);
write_unlock_bh(&ip_conntrack_lock);
- DEBUGP("leaving\n");
-
return err;
}
git://git.onelab.eu / linux-2.6.git / blobdiff