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1 #ifndef _HAPROXY_TX_T_H

2 #define _HAPROXY_TX_T_H

4 #define QUIC_MIN_CC_PKTSIZE 128

5 #define QUIC_DGRAM_HEADLEN (sizeof(uint16_t) + sizeof(void *))

6 #define QUIC_MAX_CC_BUFSIZE (2 * (QUIC_MIN_CC_PKTSIZE + QUIC_DGRAM_HEADLEN))

8 #include <import/eb64tree.h>

9 #include <haproxy/list-t.h>

11 extern struct pool_head *pool_head_quic_tx_packet;

12 extern struct pool_head *pool_head_quic_cc_buf;

14 /* Flag a sent packet as being an ack-eliciting packet. */

15 #define QUIC_FL_TX_PACKET_ACK_ELICITING (1UL << 0)

16 /* Flag a sent packet as containing a PADDING frame. */

17 #define QUIC_FL_TX_PACKET_PADDING (1UL << 1)

18 /* Flag a sent packet as being in flight. */

19 #define QUIC_FL_TX_PACKET_IN_FLIGHT (QUIC_FL_TX_PACKET_ACK_ELICITING | QUIC_FL_TX_PACKET_PADDING)

20 /* Flag a sent packet as containing a CONNECTION_CLOSE frame */

21 #define QUIC_FL_TX_PACKET_CC (1UL << 2)

22 /* Flag a sent packet as containing an ACK frame */

23 #define QUIC_FL_TX_PACKET_ACK (1UL << 3)

24 /* Flag a sent packet as being coalesced to another one in the same datagram */

25 #define QUIC_FL_TX_PACKET_COALESCED (1UL << 4)

26 /* Flag a sent packet as being probing with old data */

27 #define QUIC_FL_TX_PACKET_PROBE_WITH_OLD_DATA (1UL << 5)

29 /* Structure to store enough information about TX QUIC packets. */

30 struct quic_tx_packet {

31 /* List entry point. */

32 struct list list;

33 /* Packet length */

34 size_t len;

35 /* This is not the packet length but the length of outstanding data

36 * for in flight TX packet.

37 */

38 size_t in_flight_len;

39 struct eb64_node pn_node;

40 /* The list of frames of this packet. */

41 struct list frms;

42 /* The time this packet was sent (ms). */

43 unsigned int time_sent;

44 /* Packet number spakce. */

45 struct quic_pktns *pktns;

46 /* Flags. */

47 unsigned int flags;

48 /* Reference counter */

49 int refcnt;

50 /* Next packet in the same datagram */

51 struct quic_tx_packet *next;

52 /* Previous packet in the same datagram */

53 struct quic_tx_packet *prev;

54 /* Largest acknowledged packet number if this packet contains an ACK frame */

55 int64_t largest_acked_pn;

56 unsigned char type;

57 };

59 /* Return value for qc_build_pkt(). */

60 enum qc_build_pkt_err {

61 QC_BUILD_PKT_ERR_NONE = 0,

62 QC_BUILD_PKT_ERR_ALLOC, /* memory allocation failure */

63 QC_BUILD_PKT_ERR_ENCRYPT, /* error during encryption operation */

64 QC_BUILD_PKT_ERR_BUFROOM, /* no more room in input buf or congestion window */

65 };

67 #endif /* _HAPROXY_TX_T_H */