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authorFlorian Westphal <fw@strlen.de>2013-04-26 10:21:16 +0200
committerFlorian Westphal <fw@strlen.de>2013-04-30 16:57:22 +0200
commit6c7b3366eae8a912c56d1940ba221a1d7f8eb680 (patch)
tree4596d6ed89513d98797ce2cdb0e0daf7fab700f9 /include
parent0052078cf4cb03b23c49ef1cd65f69df746890b4 (diff)
src: add new GSO handling capabilities
allows userspace to ask for large gso packets via nfqueue. Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'include')
-rw-r--r--include/libnetfilter_queue/linux_nfnetlink_queue.h13
-rw-r--r--include/linux/netfilter/nfnetlink_queue.h21
2 files changed, 28 insertions, 6 deletions
diff --git a/include/libnetfilter_queue/linux_nfnetlink_queue.h b/include/libnetfilter_queue/linux_nfnetlink_queue.h
index 58c8ca5..81a485b 100644
--- a/include/libnetfilter_queue/linux_nfnetlink_queue.h
+++ b/include/libnetfilter_queue/linux_nfnetlink_queue.h
@@ -45,6 +45,10 @@ enum nfqnl_attr_type {
NFQA_IFINDEX_PHYSOUTDEV, /* u_int32_t ifindex */
NFQA_HWADDR, /* nfqnl_msg_packet_hw */
NFQA_PAYLOAD, /* opaque data payload */
+ NFQA_CT, /* nf_conntrack_netlink.h */
+ NFQA_CT_INFO, /* enum ip_conntrack_info */
+ NFQA_CAP_LEN, /* __u32 length of captured packet */
+ NFQA_SKB_INFO, /* __u32 skb meta information */
__NFQA_MAX
};
@@ -96,6 +100,13 @@ enum nfqnl_attr_config {
/* Flags/options for NFQA_CFG_FLAGS */
#define NFQA_CFG_F_FAIL_OPEN (1 << 0)
#define NFQA_CFG_F_CONNTRACK (1 << 1)
-#define NFQA_CFG_F_MAX (1 << 2)
+#define NFQA_CFG_F_GSO (1 << 2)
+#define NFQA_CFG_F_MAX (1 << 3)
+
+/* flags for NFQA_SKB_INFO */
+/* packet appears to have wrong checksums, but they are ok */
+#define NFQA_SKB_CSUMNOTREADY (1 << 0)
+/* packet is GSO (i.e., exceeds device mtu) */
+#define NFQA_SKB_GSO (1 << 1)
#endif /* _NFNETLINK_QUEUE_H */
diff --git a/include/linux/netfilter/nfnetlink_queue.h b/include/linux/netfilter/nfnetlink_queue.h
index da44b33..a2308ae 100644
--- a/include/linux/netfilter/nfnetlink_queue.h
+++ b/include/linux/netfilter/nfnetlink_queue.h
@@ -44,6 +44,8 @@ enum nfqnl_attr_type {
NFQA_PAYLOAD, /* opaque data payload */
NFQA_CT, /* nf_conntrack_netlink.h */
NFQA_CT_INFO, /* enum ip_conntrack_info */
+ NFQA_CAP_LEN, /* __u32 length of captured packet */
+ NFQA_SKB_INFO, /* __u32 skb meta information */
__NFQA_MAX
};
@@ -80,19 +82,28 @@ struct nfqnl_msg_config_params {
__u8 copy_mode; /* enum nfqnl_config_mode */
} __attribute__ ((packed));
-enum nfqnl_flags {
- NFQNL_F_NONE = 0,
- NFQNL_F_CONNTRACK = (1 << 0),
-};
enum nfqnl_attr_config {
NFQA_CFG_UNSPEC,
NFQA_CFG_CMD, /* nfqnl_msg_config_cmd */
NFQA_CFG_PARAMS, /* nfqnl_msg_config_params */
NFQA_CFG_QUEUE_MAXLEN, /* __u32 */
- NFQA_CFG_FLAGS, /* __u32 */
+ NFQA_CFG_MASK, /* identify which flags to change */
+ NFQA_CFG_FLAGS, /* value of these flags (__u32) */
__NFQA_CFG_MAX
};
#define NFQA_CFG_MAX (__NFQA_CFG_MAX-1)
+/* Flags for NFQA_CFG_FLAGS */
+#define NFQA_CFG_F_FAIL_OPEN (1 << 0)
+#define NFQA_CFG_F_CONNTRACK (1 << 1)
+#define NFQA_CFG_F_GSO (1 << 2)
+#define NFQA_CFG_F_MAX (1 << 3)
+
+/* flags for NFQA_SKB_INFO */
+/* packet appears to have wrong checksums, but they are ok */
+#define NFQA_SKB_CSUMNOTREADY (1 << 0)
+/* packet is GSO (i.e., exceeds device mtu) */
+#define NFQA_SKB_GSO (1 << 1)
+
#endif /* _NFNETLINK_QUEUE_H */