[NETFILTER]: Add "nfnetlink_queue" netfilter queue handler over nfnetlink

- Add new nfnetlink_queue module
- Add new ipt_NFQUEUE and ip6t_NFQUEUE modules to access queue numbers 1-65535
- Mark ip_queue and ip6_queue Kconfig options as OBSOLETE
- Update feature-removal-schedule to remove ip[6]_queue in December

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 101 insertions, 0 deletions

diff --git a/include/linux/netfilter/nfnetlink_queue.h b/include/linux/netfilter/nfnetlink_queue.h
new file mode 100644
index 000000000000..edb463a87eb4
--- /dev/null
+++ b/include/linux/netfilter/nfnetlink_queue.h
@@ -0,0 +1,85 @@
+#ifndef _NFNETLINK_QUEUE_H
+#define _NFNETLINK_QUEUE_H
+
+#include <linux/netfilter/nfnetlink.h>
+
+enum nfqnl_msg_types {
+        NFQNL_MSG_PACKET,               /* packet from kernel to userspace */
+        NFQNL_MSG_VERDICT,              /* verdict from userspace to kernel */
+        NFQNL_MSG_CONFIG,               /* connect to a particular queue */
+
+        NFQNL_MSG_MAX
+};
+
+struct nfqnl_msg_packet_hdr {
+        u_int32_t       packet_id;      /* unique ID of packet in queue */
+        u_int16_t       hw_protocol;    /* hw protocol (network order) */
+        u_int8_t        hook;           /* netfilter hook */
+} __attribute__ ((packed));
+
+struct nfqnl_msg_packet_hw {
+        u_int16_t       hw_addrlen;
+        u_int16_t       _pad;
+        u_int8_t        hw_addr[8];
+} __attribute__ ((packed));
+
+struct nfqnl_msg_packet_timestamp {
+        u_int64_t       sec;
+        u_int64_t       usec;
+} __attribute__ ((packed));
+
+enum nfqnl_attr_type {
+        NFQA_UNSPEC,
+        NFQA_PACKET_HDR,
+        NFQA_VERDICT_HDR,               /* nfqnl_msg_verdict_hrd */
+        NFQA_MARK,                      /* u_int32_t nfmark */
+        NFQA_TIMESTAMP,                 /* nfqnl_msg_packet_timestamp */
+        NFQA_IFINDEX_INDEV,             /* u_int32_t ifindex */
+        NFQA_IFINDEX_OUTDEV,            /* u_int32_t ifindex */
+        NFQA_HWADDR,                    /* nfqnl_msg_packet_hw */
+        NFQA_PAYLOAD,                   /* opaque data payload */
+
+        __NFQA_MAX
+};
+#define NFQA_MAX (__NFQA_MAX - 1)
+
+struct nfqnl_msg_verdict_hdr {
+        u_int32_t verdict;
+        u_int32_t id;
+} __attribute__ ((packed));
+
+
+enum nfqnl_msg_config_cmds {
+        NFQNL_CFG_CMD_NONE,
+        NFQNL_CFG_CMD_BIND,
+        NFQNL_CFG_CMD_UNBIND,
+        NFQNL_CFG_CMD_PF_BIND,
+        NFQNL_CFG_CMD_PF_UNBIND,
+};
+
+struct nfqnl_msg_config_cmd {
+        u_int8_t        command;        /* nfqnl_msg_config_cmds */
+        u_int8_t        _pad;
+        u_int16_t       pf;             /* AF_xxx for PF_[UN]BIND */
+} __attribute__ ((packed));
+
+enum nfqnl_config_mode {
+        NFQNL_COPY_NONE,
+        NFQNL_COPY_META,
+        NFQNL_COPY_PACKET,
+};
+
+struct nfqnl_msg_config_params {
+        u_int32_t       copy_range;
+        u_int8_t        copy_mode;      /* enum nfqnl_config_mode */
+} __attribute__ ((packed));
+
+
+enum nfqnl_attr_config {
+        NFQA_CFG_UNSPEC,
+        NFQA_CFG_CMD,                   /* nfqnl_msg_config_cmd */
+        NFQA_CFG_PARAMS,                /* nfqnl_msg_config_params */
+        __NFQA_CFG_MAX
+};
+
+#endif /* _NFNETLINK_QUEUE_H */
diff --git a/include/linux/netfilter_ipv4/ipt_NFQUEUE.h b/include/linux/netfilter_ipv4/ipt_NFQUEUE.h
new file mode 100644
index 000000000000..b5b2943b0c66
--- /dev/null
+++ b/include/linux/netfilter_ipv4/ipt_NFQUEUE.h
@@ -0,0 +1,16 @@
+/* iptables module for using NFQUEUE mechanism
+ *
+ * (C) 2005 Harald Welte <laforge@netfilter.org>
+ *
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+*/
+#ifndef _IPT_NFQ_TARGET_H
+#define _IPT_NFQ_TARGET_H
+
+/* target info */
+struct ipt_NFQ_info {
+        u_int16_t queuenum;
+};
+
+#endif /* _IPT_DSCP_TARGET_H */