af_packet: Prefixed tpacket_v3 structs to avoid name space collision
structs introduced in tpacket_v3 implementation are prefixed with 'tpacket' to avoid namespace collision. Compile tested. Signed-off-by: Chetan Loke <loke.chetan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
chetan loke
David S. Miller
parent
165c68d5a2
commit
bc59ba3991
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@ -126,7 +126,7 @@ struct tpacket2_hdr {
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__u16 tp_padding;
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};
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struct hdr_variant1 {
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struct tpacket_hdr_variant1 {
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__u32 tp_rxhash;
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__u32 tp_vlan_tci;
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};
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@ -142,11 +142,11 @@ struct tpacket3_hdr {
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__u16 tp_net;
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/* pkt_hdr variants */
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union {
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struct hdr_variant1 hv1;
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struct tpacket_hdr_variant1 hv1;
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};
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};
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struct bd_ts {
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struct tpacket_bd_ts {
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unsigned int ts_sec;
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union {
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unsigned int ts_usec;
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@ -154,7 +154,7 @@ struct bd_ts {
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};
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};
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struct hdr_v1 {
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struct tpacket_hdr_v1 {
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__u32 block_status;
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__u32 num_pkts;
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__u32 offset_to_first_pkt;
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@ -200,17 +200,17 @@ struct hdr_v1 {
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* Use the ts of the first packet in the block.
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*
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*/
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struct bd_ts ts_first_pkt, ts_last_pkt;
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struct tpacket_bd_ts ts_first_pkt, ts_last_pkt;
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};
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union bd_header_u {
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struct hdr_v1 bh1;
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union tpacket_bd_header_u {
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struct tpacket_hdr_v1 bh1;
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};
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struct block_desc {
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struct tpacket_block_desc {
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__u32 version;
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__u32 offset_to_priv;
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union bd_header_u hdr;
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union tpacket_bd_header_u hdr;
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};
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#define TPACKET2_HDRLEN (TPACKET_ALIGN(sizeof(struct tpacket2_hdr)) + sizeof(struct sockaddr_ll))
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@ -171,13 +171,13 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
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#define V3_ALIGNMENT (8)
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#define BLK_HDR_LEN (ALIGN(sizeof(struct block_desc), V3_ALIGNMENT))
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#define BLK_HDR_LEN (ALIGN(sizeof(struct tpacket_block_desc), V3_ALIGNMENT))
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#define BLK_PLUS_PRIV(sz_of_priv) \
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(BLK_HDR_LEN + ALIGN((sz_of_priv), V3_ALIGNMENT))
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/* kbdq - kernel block descriptor queue */
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struct kbdq_core {
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struct tpacket_kbdq_core {
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struct pgv *pkbdq;
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unsigned int feature_req_word;
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unsigned int hdrlen;
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@ -230,7 +230,7 @@ struct packet_ring_buffer {
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unsigned int pg_vec_pages;
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unsigned int pg_vec_len;
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struct kbdq_core prb_bdqc;
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struct tpacket_kbdq_core prb_bdqc;
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atomic_t pending;
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};
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@ -249,21 +249,25 @@ static void *packet_previous_frame(struct packet_sock *po,
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struct packet_ring_buffer *rb,
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int status);
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static void packet_increment_head(struct packet_ring_buffer *buff);
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static int prb_curr_blk_in_use(struct kbdq_core *,
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struct block_desc *);
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static void *prb_dispatch_next_block(struct kbdq_core *,
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static int prb_curr_blk_in_use(struct tpacket_kbdq_core *,
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struct tpacket_block_desc *);
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static void *prb_dispatch_next_block(struct tpacket_kbdq_core *,
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struct packet_sock *);
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static void prb_retire_current_block(struct kbdq_core *,
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static void prb_retire_current_block(struct tpacket_kbdq_core *,
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struct packet_sock *, unsigned int status);
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static int prb_queue_frozen(struct kbdq_core *);
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static void prb_open_block(struct kbdq_core *, struct block_desc *);
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static int prb_queue_frozen(struct tpacket_kbdq_core *);
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static void prb_open_block(struct tpacket_kbdq_core *,
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struct tpacket_block_desc *);
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static void prb_retire_rx_blk_timer_expired(unsigned long);
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static void _prb_refresh_rx_retire_blk_timer(struct kbdq_core *);
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static void prb_init_blk_timer(struct packet_sock *, struct kbdq_core *,
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void (*func) (unsigned long));
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static void prb_fill_rxhash(struct kbdq_core *, struct tpacket3_hdr *);
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static void prb_clear_rxhash(struct kbdq_core *, struct tpacket3_hdr *);
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static void prb_fill_vlan_info(struct kbdq_core *, struct tpacket3_hdr *);
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static void _prb_refresh_rx_retire_blk_timer(struct tpacket_kbdq_core *);
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static void prb_init_blk_timer(struct packet_sock *,
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struct tpacket_kbdq_core *,
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void (*func) (unsigned long));
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static void prb_fill_rxhash(struct tpacket_kbdq_core *, struct tpacket3_hdr *);
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static void prb_clear_rxhash(struct tpacket_kbdq_core *,
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struct tpacket3_hdr *);
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static void prb_fill_vlan_info(struct tpacket_kbdq_core *,
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struct tpacket3_hdr *);
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static void packet_flush_mclist(struct sock *sk);
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struct packet_fanout;
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@ -322,11 +326,11 @@ struct packet_skb_cb {
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#define PACKET_SKB_CB(__skb) ((struct packet_skb_cb *)((__skb)->cb))
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#define GET_PBDQC_FROM_RB(x) ((struct kbdq_core *)(&(x)->prb_bdqc))
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#define GET_PBDQC_FROM_RB(x) ((struct tpacket_kbdq_core *)(&(x)->prb_bdqc))
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#define GET_PBLOCK_DESC(x, bid) \
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((struct block_desc *)((x)->pkbdq[(bid)].buffer))
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((struct tpacket_block_desc *)((x)->pkbdq[(bid)].buffer))
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#define GET_CURR_PBLOCK_DESC_FROM_CORE(x) \
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((struct block_desc *)((x)->pkbdq[(x)->kactive_blk_num].buffer))
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((struct tpacket_block_desc *)((x)->pkbdq[(x)->kactive_blk_num].buffer))
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#define GET_NEXT_PRB_BLK_NUM(x) \
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(((x)->kactive_blk_num < ((x)->knum_blocks-1)) ? \
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((x)->kactive_blk_num+1) : 0)
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@ -480,7 +484,7 @@ static inline void *packet_current_frame(struct packet_sock *po,
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return packet_lookup_frame(po, rb, rb->head, status);
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}
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static void prb_del_retire_blk_timer(struct kbdq_core *pkc)
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static void prb_del_retire_blk_timer(struct tpacket_kbdq_core *pkc)
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{
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del_timer_sync(&pkc->retire_blk_timer);
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}
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@ -489,7 +493,7 @@ static void prb_shutdown_retire_blk_timer(struct packet_sock *po,
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int tx_ring,
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struct sk_buff_head *rb_queue)
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{
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struct kbdq_core *pkc;
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struct tpacket_kbdq_core *pkc;
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pkc = tx_ring ? &po->tx_ring.prb_bdqc : &po->rx_ring.prb_bdqc;
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@ -501,7 +505,7 @@ static void prb_shutdown_retire_blk_timer(struct packet_sock *po,
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}
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static void prb_init_blk_timer(struct packet_sock *po,
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struct kbdq_core *pkc,
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struct tpacket_kbdq_core *pkc,
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void (*func) (unsigned long))
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{
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init_timer(&pkc->retire_blk_timer);
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@ -512,7 +516,7 @@ static void prb_init_blk_timer(struct packet_sock *po,
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static void prb_setup_retire_blk_timer(struct packet_sock *po, int tx_ring)
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{
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struct kbdq_core *pkc;
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struct tpacket_kbdq_core *pkc;
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if (tx_ring)
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BUG();
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@ -568,7 +572,7 @@ static int prb_calc_retire_blk_tmo(struct packet_sock *po,
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return tmo;
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}
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static void prb_init_ft_ops(struct kbdq_core *p1,
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static void prb_init_ft_ops(struct tpacket_kbdq_core *p1,
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union tpacket_req_u *req_u)
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{
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p1->feature_req_word = req_u->req3.tp_feature_req_word;
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@ -579,14 +583,14 @@ static void init_prb_bdqc(struct packet_sock *po,
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struct pgv *pg_vec,
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union tpacket_req_u *req_u, int tx_ring)
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{
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struct kbdq_core *p1 = &rb->prb_bdqc;
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struct block_desc *pbd;
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struct tpacket_kbdq_core *p1 = &rb->prb_bdqc;
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struct tpacket_block_desc *pbd;
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memset(p1, 0x0, sizeof(*p1));
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p1->knxt_seq_num = 1;
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p1->pkbdq = pg_vec;
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pbd = (struct block_desc *)pg_vec[0].buffer;
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pbd = (struct tpacket_block_desc *)pg_vec[0].buffer;
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p1->pkblk_start = (char *)pg_vec[0].buffer;
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p1->kblk_size = req_u->req3.tp_block_size;
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p1->knum_blocks = req_u->req3.tp_block_nr;
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@ -610,7 +614,7 @@ static void init_prb_bdqc(struct packet_sock *po,
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/* Do NOT update the last_blk_num first.
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* Assumes sk_buff_head lock is held.
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*/
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static void _prb_refresh_rx_retire_blk_timer(struct kbdq_core *pkc)
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static void _prb_refresh_rx_retire_blk_timer(struct tpacket_kbdq_core *pkc)
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{
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mod_timer(&pkc->retire_blk_timer,
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jiffies + pkc->tov_in_jiffies);
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@ -643,9 +647,9 @@ static void _prb_refresh_rx_retire_blk_timer(struct kbdq_core *pkc)
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static void prb_retire_rx_blk_timer_expired(unsigned long data)
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{
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struct packet_sock *po = (struct packet_sock *)data;
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struct kbdq_core *pkc = &po->rx_ring.prb_bdqc;
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struct tpacket_kbdq_core *pkc = &po->rx_ring.prb_bdqc;
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unsigned int frozen;
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struct block_desc *pbd;
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struct tpacket_block_desc *pbd;
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spin_lock(&po->sk.sk_receive_queue.lock);
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@ -709,8 +713,8 @@ out:
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spin_unlock(&po->sk.sk_receive_queue.lock);
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}
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static inline void prb_flush_block(struct kbdq_core *pkc1,
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struct block_desc *pbd1, __u32 status)
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static inline void prb_flush_block(struct tpacket_kbdq_core *pkc1,
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struct tpacket_block_desc *pbd1, __u32 status)
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{
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/* Flush everything minus the block header */
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@ -752,13 +756,14 @@ static inline void prb_flush_block(struct kbdq_core *pkc1,
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* Note:We DONT refresh the timer on purpose.
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* Because almost always the next block will be opened.
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*/
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static void prb_close_block(struct kbdq_core *pkc1, struct block_desc *pbd1,
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static void prb_close_block(struct tpacket_kbdq_core *pkc1,
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struct tpacket_block_desc *pbd1,
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struct packet_sock *po, unsigned int stat)
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{
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__u32 status = TP_STATUS_USER | stat;
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struct tpacket3_hdr *last_pkt;
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struct hdr_v1 *h1 = &pbd1->hdr.bh1;
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struct tpacket_hdr_v1 *h1 = &pbd1->hdr.bh1;
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if (po->stats.tp_drops)
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status |= TP_STATUS_LOSING;
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@ -786,7 +791,7 @@ static void prb_close_block(struct kbdq_core *pkc1, struct block_desc *pbd1,
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pkc1->kactive_blk_num = GET_NEXT_PRB_BLK_NUM(pkc1);
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}
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static inline void prb_thaw_queue(struct kbdq_core *pkc)
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static inline void prb_thaw_queue(struct tpacket_kbdq_core *pkc)
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{
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pkc->reset_pending_on_curr_blk = 0;
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}
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@ -798,10 +803,11 @@ static inline void prb_thaw_queue(struct kbdq_core *pkc)
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* 2) retire_blk_timer is refreshed.
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*
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*/
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static void prb_open_block(struct kbdq_core *pkc1, struct block_desc *pbd1)
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static void prb_open_block(struct tpacket_kbdq_core *pkc1,
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struct tpacket_block_desc *pbd1)
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{
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struct timespec ts;
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struct hdr_v1 *h1 = &pbd1->hdr.bh1;
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struct tpacket_hdr_v1 *h1 = &pbd1->hdr.bh1;
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smp_rmb();
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@ -861,7 +867,7 @@ static void prb_open_block(struct kbdq_core *pkc1, struct block_desc *pbd1)
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* case and __packet_lookup_frame_in_block will check if block-0
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* is free and can now be re-used.
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*/
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static inline void prb_freeze_queue(struct kbdq_core *pkc,
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static inline void prb_freeze_queue(struct tpacket_kbdq_core *pkc,
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struct packet_sock *po)
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{
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pkc->reset_pending_on_curr_blk = 1;
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@ -876,10 +882,10 @@ static inline void prb_freeze_queue(struct kbdq_core *pkc,
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* Else, we will freeze the queue.
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* So, caller must check the return value.
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*/
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static void *prb_dispatch_next_block(struct kbdq_core *pkc,
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static void *prb_dispatch_next_block(struct tpacket_kbdq_core *pkc,
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struct packet_sock *po)
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{
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struct block_desc *pbd;
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struct tpacket_block_desc *pbd;
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smp_rmb();
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@ -901,10 +907,10 @@ static void *prb_dispatch_next_block(struct kbdq_core *pkc,
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return (void *)pkc->nxt_offset;
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}
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static void prb_retire_current_block(struct kbdq_core *pkc,
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static void prb_retire_current_block(struct tpacket_kbdq_core *pkc,
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struct packet_sock *po, unsigned int status)
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{
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struct block_desc *pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);
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struct tpacket_block_desc *pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc);
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/* retire/close the current block */
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if (likely(TP_STATUS_KERNEL == BLOCK_STATUS(pbd))) {
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@ -932,36 +938,36 @@ static void prb_retire_current_block(struct kbdq_core *pkc,
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BUG();
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}
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static inline int prb_curr_blk_in_use(struct kbdq_core *pkc,
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struct block_desc *pbd)
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static inline int prb_curr_blk_in_use(struct tpacket_kbdq_core *pkc,
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struct tpacket_block_desc *pbd)
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{
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return TP_STATUS_USER & BLOCK_STATUS(pbd);
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}
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static inline int prb_queue_frozen(struct kbdq_core *pkc)
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static inline int prb_queue_frozen(struct tpacket_kbdq_core *pkc)
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{
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return pkc->reset_pending_on_curr_blk;
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}
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static inline void prb_clear_blk_fill_status(struct packet_ring_buffer *rb)
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{
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struct kbdq_core *pkc = GET_PBDQC_FROM_RB(rb);
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struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(rb);
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atomic_dec(&pkc->blk_fill_in_prog);
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}
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static inline void prb_fill_rxhash(struct kbdq_core *pkc,
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static inline void prb_fill_rxhash(struct tpacket_kbdq_core *pkc,
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struct tpacket3_hdr *ppd)
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{
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ppd->hv1.tp_rxhash = skb_get_rxhash(pkc->skb);
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}
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static inline void prb_clear_rxhash(struct kbdq_core *pkc,
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static inline void prb_clear_rxhash(struct tpacket_kbdq_core *pkc,
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struct tpacket3_hdr *ppd)
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{
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ppd->hv1.tp_rxhash = 0;
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}
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static inline void prb_fill_vlan_info(struct kbdq_core *pkc,
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static inline void prb_fill_vlan_info(struct tpacket_kbdq_core *pkc,
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struct tpacket3_hdr *ppd)
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{
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if (vlan_tx_tag_present(pkc->skb)) {
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@ -972,7 +978,7 @@ static inline void prb_fill_vlan_info(struct kbdq_core *pkc,
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}
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}
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static void prb_run_all_ft_ops(struct kbdq_core *pkc,
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static void prb_run_all_ft_ops(struct tpacket_kbdq_core *pkc,
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struct tpacket3_hdr *ppd)
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{
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prb_fill_vlan_info(pkc, ppd);
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@ -983,8 +989,9 @@ static void prb_run_all_ft_ops(struct kbdq_core *pkc,
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prb_clear_rxhash(pkc, ppd);
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}
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static inline void prb_fill_curr_block(char *curr, struct kbdq_core *pkc,
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struct block_desc *pbd,
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static inline void prb_fill_curr_block(char *curr,
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struct tpacket_kbdq_core *pkc,
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struct tpacket_block_desc *pbd,
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unsigned int len)
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{
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struct tpacket3_hdr *ppd;
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@ -1006,8 +1013,8 @@ static void *__packet_lookup_frame_in_block(struct packet_sock *po,
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unsigned int len
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)
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{
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struct kbdq_core *pkc;
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struct block_desc *pbd;
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struct tpacket_kbdq_core *pkc;
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struct tpacket_block_desc *pbd;
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char *curr, *end;
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pkc = GET_PBDQC_FROM_RB(((struct packet_ring_buffer *)&po->rx_ring));
|
||||
|
|
@ -1087,8 +1094,8 @@ static inline void *prb_lookup_block(struct packet_sock *po,
|
|||
unsigned int previous,
|
||||
int status)
|
||||
{
|
||||
struct kbdq_core *pkc = GET_PBDQC_FROM_RB(rb);
|
||||
struct block_desc *pbd = GET_PBLOCK_DESC(pkc, previous);
|
||||
struct tpacket_kbdq_core *pkc = GET_PBDQC_FROM_RB(rb);
|
||||
struct tpacket_block_desc *pbd = GET_PBLOCK_DESC(pkc, previous);
|
||||
|
||||
if (status != BLOCK_STATUS(pbd))
|
||||
return NULL;
|
||||
|
|
|
|||
Reference in New Issue