1 files changed, 121 insertions, 0 deletions
diff --git a/net/packet/internal.h b/net/packet/internal.h
new file mode 100644
index 000000000000..44945f6b7252
--- /dev/null
+++ b/net/packet/internal.h
@@ -0,0 +1,121 @@
+#ifndef __PACKET_INTERNAL_H__
+#define __PACKET_INTERNAL_H__
+struct packet_mclist {
+        struct packet_mclist    *next;
+        int                     ifindex;
+        int                     count;
+        unsigned short          type;
+        unsigned short          alen;
+        unsigned char           addr[MAX_ADDR_LEN];
+};
+/* kbdq - kernel block descriptor queue */
+struct tpacket_kbdq_core {
+        struct pgv      *pkbdq;
+        unsigned int    feature_req_word;
+        unsigned int    hdrlen;
+        unsigned char   reset_pending_on_curr_blk;
+        unsigned char   delete_blk_timer;
+        unsigned short  kactive_blk_num;
+        unsigned short  blk_sizeof_priv;
+        /* last_kactive_blk_num:
+         * trick to see if user-space has caught up
+         * in order to avoid refreshing timer when every single pkt arrives.
+         */
+        unsigned short  last_kactive_blk_num;
+        char            *pkblk_start;
+        char            *pkblk_end;
+        int             kblk_size;
+        unsigned int    knum_blocks;
+        uint64_t        knxt_seq_num;
+        char            *prev;
+        char            *nxt_offset;
+        struct sk_buff  *skb;
+        atomic_t        blk_fill_in_prog;
+        /* Default is set to 8ms */
+#define DEFAULT_PRB_RETIRE_TOV  (8)
+        unsigned short  retire_blk_tov;
+        unsigned short  version;
+        unsigned long   tov_in_jiffies;
+        /* timer to retire an outstanding block */
+        struct timer_list retire_blk_timer;
+};
+struct pgv {
+        char *buffer;
+};
+struct packet_ring_buffer {
+        struct pgv              *pg_vec;
+        unsigned int            head;
+        unsigned int            frames_per_block;
+        unsigned int            frame_size;
+        unsigned int            frame_max;
+        unsigned int            pg_vec_order;
+        unsigned int            pg_vec_pages;
+        unsigned int            pg_vec_len;
+        struct tpacket_kbdq_core        prb_bdqc;
+        atomic_t                pending;
+};
+extern struct mutex fanout_mutex;
+#define PACKET_FANOUT_MAX       256
+struct packet_fanout {
+#ifdef CONFIG_NET_NS
+        struct net              *net;
+#endif
+        unsigned int            num_members;
+        u16                     id;
+        u8                      type;
+        u8                      defrag;
+        atomic_t                rr_cur;
+        struct list_head        list;
+        struct sock             *arr[PACKET_FANOUT_MAX];
+        spinlock_t              lock;
+        atomic_t                sk_ref;
+        struct packet_type      prot_hook ____cacheline_aligned_in_smp;
+};
+struct packet_sock {
+        /* struct sock has to be the first member of packet_sock */
+        struct sock             sk;
+        struct packet_fanout    *fanout;
+        struct tpacket_stats    stats;
+        union  tpacket_stats_u  stats_u;
+        struct packet_ring_buffer       rx_ring;
+        struct packet_ring_buffer       tx_ring;
+        int                     copy_thresh;
+        spinlock_t              bind_lock;
+        struct mutex            pg_vec_lock;
+        unsigned int            running:1,      /* prot_hook is attached*/
+                                auxdata:1,
+                                origdev:1,
+                                has_vnet_hdr:1;
+        int                     ifindex;        /* bound device         */
+        __be16                  num;
+        struct packet_mclist    *mclist;
+        atomic_t                mapped;
+        enum tpacket_versions   tp_version;
+        unsigned int            tp_hdrlen;
+        unsigned int            tp_reserve;
+        unsigned int            tp_loss:1;
+        unsigned int            tp_tstamp;
+        struct packet_type      prot_hook ____cacheline_aligned_in_smp;
+};
+static struct packet_sock *pkt_sk(struct sock *sk)
+{
+        return (struct packet_sock *)sk;
+}
+#endif

diff --git a/net/packet/internal.h b/net/packet/internal.h new file mode 100644 index 000000000000..44945f6b7252 --- /dev/null +++ b/net/packet/internal.h
@@ -0,0 +1,121 @@
	1	#ifndef __PACKET_INTERNAL_H__
	2	#define __PACKET_INTERNAL_H__
	3
	4	struct packet_mclist {
	5	struct packet_mclist *next;
	6	int ifindex;
	7	int count;
	8	unsigned short type;
	9	unsigned short alen;
	10	unsigned char addr[MAX_ADDR_LEN];
	11	};
	12
	13	/* kbdq - kernel block descriptor queue */
	14	struct tpacket_kbdq_core {
	15	struct pgv *pkbdq;
	16	unsigned int feature_req_word;
	17	unsigned int hdrlen;
	18	unsigned char reset_pending_on_curr_blk;
	19	unsigned char delete_blk_timer;
	20	unsigned short kactive_blk_num;
	21	unsigned short blk_sizeof_priv;
	22
	23	/* last_kactive_blk_num:
	24	* trick to see if user-space has caught up
	25	* in order to avoid refreshing timer when every single pkt arrives.
	26	*/
	27	unsigned short last_kactive_blk_num;
	28
	29	char *pkblk_start;
	30	char *pkblk_end;
	31	int kblk_size;
	32	unsigned int knum_blocks;
	33	uint64_t knxt_seq_num;
	34	char *prev;
	35	char *nxt_offset;
	36	struct sk_buff *skb;
	37
	38	atomic_t blk_fill_in_prog;
	39
	40	/* Default is set to 8ms */
	41	#define DEFAULT_PRB_RETIRE_TOV (8)
	42
	43	unsigned short retire_blk_tov;
	44	unsigned short version;
	45	unsigned long tov_in_jiffies;
	46
	47	/* timer to retire an outstanding block */
	48	struct timer_list retire_blk_timer;
	49	};
	50
	51	struct pgv {
	52	char *buffer;
	53	};
	54
	55	struct packet_ring_buffer {
	56	struct pgv *pg_vec;
	57	unsigned int head;
	58	unsigned int frames_per_block;
	59	unsigned int frame_size;
	60	unsigned int frame_max;
	61
	62	unsigned int pg_vec_order;
	63	unsigned int pg_vec_pages;
	64	unsigned int pg_vec_len;
	65
	66	struct tpacket_kbdq_core prb_bdqc;
	67	atomic_t pending;
	68	};
	69
	70	extern struct mutex fanout_mutex;
	71	#define PACKET_FANOUT_MAX 256
	72
	73	struct packet_fanout {
	74	#ifdef CONFIG_NET_NS
	75	struct net *net;
	76	#endif
	77	unsigned int num_members;
	78	u16 id;
	79	u8 type;
	80	u8 defrag;
	81	atomic_t rr_cur;
	82	struct list_head list;
	83	struct sock *arr[PACKET_FANOUT_MAX];
	84	spinlock_t lock;
	85	atomic_t sk_ref;
	86	struct packet_type prot_hook ____cacheline_aligned_in_smp;
	87	};
	88
	89	struct packet_sock {
	90	/* struct sock has to be the first member of packet_sock */
	91	struct sock sk;
	92	struct packet_fanout *fanout;
	93	struct tpacket_stats stats;
	94	union tpacket_stats_u stats_u;
	95	struct packet_ring_buffer rx_ring;
	96	struct packet_ring_buffer tx_ring;
	97	int copy_thresh;
	98	spinlock_t bind_lock;
	99	struct mutex pg_vec_lock;
	100	unsigned int running:1, /* prot_hook is attached*/
	101	auxdata:1,
	102	origdev:1,
	103	has_vnet_hdr:1;
	104	int ifindex; /* bound device */
	105	__be16 num;
	106	struct packet_mclist *mclist;
	107	atomic_t mapped;
	108	enum tpacket_versions tp_version;
	109	unsigned int tp_hdrlen;
	110	unsigned int tp_reserve;
	111	unsigned int tp_loss:1;
	112	unsigned int tp_tstamp;
	113	struct packet_type prot_hook ____cacheline_aligned_in_smp;
	114	};
	115
	116	static struct packet_sock pkt_sk(struct sock sk)
	117	{
	118	return (struct packet_sock *)sk;
	119	}
	120
	121	#endif