static DEFINE_RWLOCK(instances_lock);
-u_int64_t htonll(u_int64_t in)
-{
- u_int64_t out;
- int i;
-
- for (i = 0; i < sizeof(u_int64_t); i++)
- ((u_int8_t *)&out)[sizeof(u_int64_t)-1] = ((u_int8_t *)&in)[i];
-
- return out;
-}
-
#define INSTANCE_BUCKETS 16
static struct hlist_head instance_table[INSTANCE_BUCKETS];
goto out_unlock;
}
- inst = kmalloc(sizeof(*inst), GFP_ATOMIC);
+ inst = kzalloc(sizeof(*inst), GFP_ATOMIC);
if (!inst)
goto out_unlock;
- memset(inst, 0, sizeof(*inst));
inst->queue_num = queue_num;
inst->peer_pid = pid;
inst->queue_maxlen = NFQNL_QMAX_DEFAULT;
atomic_set(&inst->id_sequence, 0);
/* needs to be two, since we _put() after creation */
atomic_set(&inst->use, 2);
- inst->lock = SPIN_LOCK_UNLOCKED;
+ spin_lock_init(&inst->lock);
INIT_LIST_HEAD(&inst->queue_list);
if (!try_module_get(THIS_MODULE))
struct nfqnl_msg_packet_hdr pmsg;
struct nlmsghdr *nlh;
struct nfgenmsg *nfmsg;
+ struct nf_info *entinf = entry->info;
+ struct sk_buff *entskb = entry->skb;
+ struct net_device *indev;
+ struct net_device *outdev;
unsigned int tmp_uint;
QDEBUG("entered\n");
/* all macros expand to constant values at compile time */
- size = NLMSG_SPACE(sizeof(struct nfqnl_msg_packet_hdr))
- + NLMSG_SPACE(sizeof(u_int32_t)) /* ifindex */
- + NLMSG_SPACE(sizeof(u_int32_t)) /* ifindex */
+ size = NLMSG_SPACE(sizeof(struct nfgenmsg)) +
+ + NFA_SPACE(sizeof(struct nfqnl_msg_packet_hdr))
+ + NFA_SPACE(sizeof(u_int32_t)) /* ifindex */
+ + NFA_SPACE(sizeof(u_int32_t)) /* ifindex */
#ifdef CONFIG_BRIDGE_NETFILTER
- + NLMSG_SPACE(sizeof(u_int32_t)) /* ifindex */
- + NLMSG_SPACE(sizeof(u_int32_t)) /* ifindex */
+ + NFA_SPACE(sizeof(u_int32_t)) /* ifindex */
+ + NFA_SPACE(sizeof(u_int32_t)) /* ifindex */
#endif
- + NLMSG_SPACE(sizeof(u_int32_t)) /* mark */
- + NLMSG_SPACE(sizeof(struct nfqnl_msg_packet_hw))
- + NLMSG_SPACE(sizeof(struct nfqnl_msg_packet_timestamp));
+ + NFA_SPACE(sizeof(u_int32_t)) /* mark */
+ + NFA_SPACE(sizeof(struct nfqnl_msg_packet_hw))
+ + NFA_SPACE(sizeof(struct nfqnl_msg_packet_timestamp));
+
+ outdev = entinf->outdev;
spin_lock_bh(&queue->lock);
break;
case NFQNL_COPY_PACKET:
+ if (entskb->ip_summed == CHECKSUM_HW &&
+ (*errp = skb_checksum_help(entskb,
+ outdev == NULL))) {
+ spin_unlock_bh(&queue->lock);
+ return NULL;
+ }
if (queue->copy_range == 0
- || queue->copy_range > entry->skb->len)
- data_len = entry->skb->len;
+ || queue->copy_range > entskb->len)
+ data_len = entskb->len;
else
data_len = queue->copy_range;
- size += NLMSG_SPACE(data_len);
+ size += NFA_SPACE(data_len);
break;
default:
NFNL_SUBSYS_QUEUE << 8 | NFQNL_MSG_PACKET,
sizeof(struct nfgenmsg));
nfmsg = NLMSG_DATA(nlh);
- nfmsg->nfgen_family = entry->info->pf;
+ nfmsg->nfgen_family = entinf->pf;
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = htons(queue->queue_num);
pmsg.packet_id = htonl(entry->id);
- pmsg.hw_protocol = htons(entry->skb->protocol);
- pmsg.hook = entry->info->hook;
+ pmsg.hw_protocol = htons(entskb->protocol);
+ pmsg.hook = entinf->hook;
NFA_PUT(skb, NFQA_PACKET_HDR, sizeof(pmsg), &pmsg);
- if (entry->info->indev) {
- tmp_uint = htonl(entry->info->indev->ifindex);
+ indev = entinf->indev;
+ if (indev) {
+ tmp_uint = htonl(indev->ifindex);
#ifndef CONFIG_BRIDGE_NETFILTER
NFA_PUT(skb, NFQA_IFINDEX_INDEV, sizeof(tmp_uint), &tmp_uint);
#else
- if (entry->info->pf == PF_BRIDGE) {
+ if (entinf->pf == PF_BRIDGE) {
/* Case 1: indev is physical input device, we need to
* look for bridge group (when called from
* netfilter_bridge) */
NFA_PUT(skb, NFQA_IFINDEX_PHYSINDEV, sizeof(tmp_uint),
&tmp_uint);
/* this is the bridge group "brX" */
- tmp_uint = htonl(entry->info->indev->br_port->br->dev->ifindex);
+ tmp_uint = htonl(indev->br_port->br->dev->ifindex);
NFA_PUT(skb, NFQA_IFINDEX_INDEV, sizeof(tmp_uint),
&tmp_uint);
} else {
* physical device (when called from ipv4) */
NFA_PUT(skb, NFQA_IFINDEX_INDEV, sizeof(tmp_uint),
&tmp_uint);
- if (entry->skb->nf_bridge
- && entry->skb->nf_bridge->physindev) {
- tmp_uint = htonl(entry->skb->nf_bridge->physindev->ifindex);
+ if (entskb->nf_bridge
+ && entskb->nf_bridge->physindev) {
+ tmp_uint = htonl(entskb->nf_bridge->physindev->ifindex);
NFA_PUT(skb, NFQA_IFINDEX_PHYSINDEV,
sizeof(tmp_uint), &tmp_uint);
}
#endif
}
- if (entry->info->outdev) {
- tmp_uint = htonl(entry->info->outdev->ifindex);
+ if (outdev) {
+ tmp_uint = htonl(outdev->ifindex);
#ifndef CONFIG_BRIDGE_NETFILTER
NFA_PUT(skb, NFQA_IFINDEX_OUTDEV, sizeof(tmp_uint), &tmp_uint);
#else
- if (entry->info->pf == PF_BRIDGE) {
+ if (entinf->pf == PF_BRIDGE) {
/* Case 1: outdev is physical output device, we need to
* look for bridge group (when called from
* netfilter_bridge) */
NFA_PUT(skb, NFQA_IFINDEX_PHYSOUTDEV, sizeof(tmp_uint),
&tmp_uint);
/* this is the bridge group "brX" */
- tmp_uint = htonl(entry->info->outdev->br_port->br->dev->ifindex);
+ tmp_uint = htonl(outdev->br_port->br->dev->ifindex);
NFA_PUT(skb, NFQA_IFINDEX_OUTDEV, sizeof(tmp_uint),
&tmp_uint);
} else {
* physical output device (when called from ipv4) */
NFA_PUT(skb, NFQA_IFINDEX_OUTDEV, sizeof(tmp_uint),
&tmp_uint);
- if (entry->skb->nf_bridge
- && entry->skb->nf_bridge->physoutdev) {
- tmp_uint = htonl(entry->skb->nf_bridge->physoutdev->ifindex);
+ if (entskb->nf_bridge
+ && entskb->nf_bridge->physoutdev) {
+ tmp_uint = htonl(entskb->nf_bridge->physoutdev->ifindex);
NFA_PUT(skb, NFQA_IFINDEX_PHYSOUTDEV,
sizeof(tmp_uint), &tmp_uint);
}
#endif
}
- if (entry->skb->nfmark) {
- tmp_uint = htonl(entry->skb->nfmark);
+ if (entskb->nfmark) {
+ tmp_uint = htonl(entskb->nfmark);
NFA_PUT(skb, NFQA_MARK, sizeof(u_int32_t), &tmp_uint);
}
- if (entry->info->indev && entry->skb->dev
- && entry->skb->dev->hard_header_parse) {
+ if (indev && entskb->dev
+ && entskb->dev->hard_header_parse) {
struct nfqnl_msg_packet_hw phw;
phw.hw_addrlen =
- entry->skb->dev->hard_header_parse(entry->skb,
+ entskb->dev->hard_header_parse(entskb,
phw.hw_addr);
phw.hw_addrlen = htons(phw.hw_addrlen);
NFA_PUT(skb, NFQA_HWADDR, sizeof(phw), &phw);
}
- if (entry->skb->tstamp.off_sec) {
+ if (entskb->tstamp.off_sec) {
struct nfqnl_msg_packet_timestamp ts;
- ts.sec = htonll(skb_tv_base.tv_sec + entry->skb->tstamp.off_sec);
- ts.usec = htonll(skb_tv_base.tv_usec + entry->skb->tstamp.off_usec);
+ ts.sec = cpu_to_be64(entskb->tstamp.off_sec);
+ ts.usec = cpu_to_be64(entskb->tstamp.off_usec);
NFA_PUT(skb, NFQA_TIMESTAMP, sizeof(ts), &ts);
}
nfa->nfa_type = NFQA_PAYLOAD;
nfa->nfa_len = size;
- if (skb_copy_bits(entry->skb, 0, NFA_DATA(nfa), data_len))
+ if (skb_copy_bits(entskb, 0, NFA_DATA(nfa), data_len))
BUG();
}
if (!skb_make_writable(&e->skb, data_len))
return -ENOMEM;
memcpy(e->skb->data, data, data_len);
-
+ e->skb->ip_summed = CHECKSUM_NONE;
return 0;
}
static int
dev_cmp(struct nfqnl_queue_entry *entry, unsigned long ifindex)
{
- if (entry->info->indev)
- if (entry->info->indev->ifindex == ifindex)
+ struct nf_info *entinf = entry->info;
+
+ if (entinf->indev)
+ if (entinf->indev->ifindex == ifindex)
return 1;
- if (entry->info->outdev)
- if (entry->info->outdev->ifindex == ifindex)
+ if (entinf->outdev)
+ if (entinf->outdev->ifindex == ifindex)
return 1;
return 0;
}
if (nfqa[NFQA_MARK-1])
- skb->nfmark = ntohl(*(u_int32_t *)NFA_DATA(nfqa[NFQA_MARK-1]));
+ entry->skb->nfmark = ntohl(*(u_int32_t *)
+ NFA_DATA(nfqa[NFQA_MARK-1]));
issue_verdict(entry, verdict);
instance_put(queue);
if (nfqa[NFQA_CFG_PARAMS-1]) {
struct nfqnl_msg_config_params *params;
- params = NFA_DATA(nfqa[NFQA_CFG_PARAMS-1]);
+ if (!queue) {
+ ret = -ENOENT;
+ goto out_put;
+ }
+ params = NFA_DATA(nfqa[NFQA_CFG_PARAMS-1]);
nfqnl_set_mode(queue, params->copy_mode,
ntohl(params->copy_range));
}
static struct nfnl_callback nfqnl_cb[NFQNL_MSG_MAX] = {
[NFQNL_MSG_PACKET] = { .call = nfqnl_recv_unsupp,
- .attr_count = NFQA_MAX,
- .cap_required = CAP_NET_ADMIN },
+ .attr_count = NFQA_MAX, },
[NFQNL_MSG_VERDICT] = { .call = nfqnl_recv_verdict,
- .attr_count = NFQA_MAX,
- .cap_required = CAP_NET_ADMIN },
+ .attr_count = NFQA_MAX, },
[NFQNL_MSG_CONFIG] = { .call = nfqnl_recv_config,
- .attr_count = NFQA_CFG_MAX,
- .cap_required = CAP_NET_ADMIN },
+ .attr_count = NFQA_CFG_MAX, },
};
static struct nfnetlink_subsystem nfqnl_subsys = {
struct iter_state *is;
int ret;
- is = kmalloc(sizeof(*is), GFP_KERNEL);
+ is = kzalloc(sizeof(*is), GFP_KERNEL);
if (!is)
return -ENOMEM;
- memset(is, 0, sizeof(*is));
ret = seq_open(file, &nfqnl_seq_ops);
if (ret < 0)
goto out_free;
#endif /* PROC_FS */
-static int
-init_or_cleanup(int init)
+static int __init nfnetlink_queue_init(void)
{
int i, status = -ENOMEM;
#ifdef CONFIG_PROC_FS
struct proc_dir_entry *proc_nfqueue;
#endif
- if (!init)
- goto cleanup;
-
for (i = 0; i < INSTANCE_BUCKETS; i++)
INIT_HLIST_HEAD(&instance_table[i]);
#endif
register_netdevice_notifier(&nfqnl_dev_notifier);
-
return status;
-cleanup:
- nf_unregister_queue_handlers(&nfqh);
- unregister_netdevice_notifier(&nfqnl_dev_notifier);
#ifdef CONFIG_PROC_FS
- remove_proc_entry("nfnetlink_queue", proc_net_netfilter);
cleanup_subsys:
-#endif
nfnetlink_subsys_unregister(&nfqnl_subsys);
+#endif
cleanup_netlink_notifier:
netlink_unregister_notifier(&nfqnl_rtnl_notifier);
return status;
}
-static int __init init(void)
+static void __exit nfnetlink_queue_fini(void)
{
-
- return init_or_cleanup(1);
-}
-
-static void __exit fini(void)
-{
- init_or_cleanup(0);
+ nf_unregister_queue_handlers(&nfqh);
+ unregister_netdevice_notifier(&nfqnl_dev_notifier);
+#ifdef CONFIG_PROC_FS
+ remove_proc_entry("nfnetlink_queue", proc_net_netfilter);
+#endif
+ nfnetlink_subsys_unregister(&nfqnl_subsys);
+ netlink_unregister_notifier(&nfqnl_rtnl_notifier);
}
MODULE_DESCRIPTION("netfilter packet queue handler");
MODULE_LICENSE("GPL");
MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_QUEUE);
-module_init(init);
-module_exit(fini);
+module_init(nfnetlink_queue_init);
+module_exit(nfnetlink_queue_fini);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff