/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Subject to the GPL, version 2. */ #ifndef TX_RING_H #define TX_RING_H #include #include "ring.h" #include "built_in.h" /* Give userland 10 us time to push packets to the ring */ #define TX_KERNEL_PULL_INT 10 extern void destroy_tx_ring(int sock, struct ring *ring); extern void create_tx_ring(int sock, struct ring *ring, int verbose); extern void mmap_tx_ring(int sock, struct ring *ring); extern void alloc_tx_ring_frames(int sock, struct ring *ring); extern void bind_tx_ring(int sock, struct ring *ring, int ifindex); extern void setup_tx_ring_layout(int sock, struct ring *ring, unsigned int size, bool jumbo_support); extern void set_packet_loss_discard(int sock); static inline int user_may_pull_from_tx(struct tpacket2_hdr *hdr) { return !(hdr->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING)); } static inline void kernel_may_pull_from_tx(struct tpacket2_hdr *hdr) { hdr->tp_status = TP_STATUS_SEND_REQUEST; } static inline int pull_and_flush_tx_ring(int sock) { return sendto(sock, NULL, 0, MSG_DONTWAIT, NULL, 0); } static inline int pull_and_flush_tx_ring_wait(int sock) { return sendto(sock, NULL, 0, 0, NULL, 0); } #endif /* TX_RING_H */ packet-rx-pump-back'>packet-rx-pump-back net-next plumbingsTobias Klauser

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