diff options
Diffstat (limited to 'tcp_conn.h')
| -rw-r--r-- | tcp_conn.h | 40 |
1 files changed, 15 insertions, 25 deletions
@@ -13,19 +13,16 @@ * struct tcp_tap_conn - Descriptor for a TCP connection (not spliced) * @f: Generic flow information * @in_epoll: Is the connection in the epoll set? + * @retrans: Number of retransmissions occurred due to ACK_TIMEOUT + * @ws_from_tap: Window scaling factor advertised from tap/guest + * @ws_to_tap: Window scaling factor advertised to tap/guest * @tap_mss: MSS advertised by tap/guest, rounded to 2 ^ TCP_MSS_BITS * @sock: Socket descriptor number * @events: Connection events, implying connection states * @timer: timerfd descriptor for timeout events * @flags: Connection flags representing internal attributes - * @retrans: Number of retransmissions occurred due to ACK_TIMEOUT - * @ws_from_tap: Window scaling factor advertised from tap/guest - * @ws_to_tap: Window scaling factor advertised to tap/guest * @sndbuf: Sending buffer in kernel, rounded to 2 ^ SNDBUF_BITS * @seq_dup_ack_approx: Last duplicate ACK number sent to tap - * @faddr: Guest side forwarding address (guest's remote address) - * @eport: Guest side endpoint port (guest's local port) - * @fport: Guest side forwarding port (guest's remote port) * @wnd_from_tap: Last window size from tap, unscaled (as received) * @wnd_to_tap: Sending window advertised to tap, unscaled (as sent) * @seq_to_tap: Next sequence for packets to tap @@ -49,6 +46,10 @@ struct tcp_tap_conn { unsigned int ws_from_tap :TCP_WS_BITS; unsigned int ws_to_tap :TCP_WS_BITS; +#define TCP_MSS_BITS 14 + unsigned int tap_mss :TCP_MSS_BITS; +#define MSS_SET(conn, mss) (conn->tap_mss = (mss >> (16 - TCP_MSS_BITS))) +#define MSS_GET(conn) (conn->tap_mss << (16 - TCP_MSS_BITS)) int sock :FD_REF_BITS; @@ -77,13 +78,6 @@ struct tcp_tap_conn { #define ACK_TO_TAP_DUE BIT(3) #define ACK_FROM_TAP_DUE BIT(4) - -#define TCP_MSS_BITS 14 - unsigned int tap_mss :TCP_MSS_BITS; -#define MSS_SET(conn, mss) (conn->tap_mss = (mss >> (16 - TCP_MSS_BITS))) -#define MSS_GET(conn) (conn->tap_mss << (16 - TCP_MSS_BITS)) - - #define SNDBUF_BITS 24 unsigned int sndbuf :SNDBUF_BITS; #define SNDBUF_SET(conn, bytes) (conn->sndbuf = ((bytes) >> (32 - SNDBUF_BITS))) @@ -91,11 +85,6 @@ struct tcp_tap_conn { uint8_t seq_dup_ack_approx; - - union inany_addr faddr; - in_port_t eport; - in_port_t fport; - uint16_t wnd_from_tap; uint16_t wnd_to_tap; @@ -109,22 +98,24 @@ struct tcp_tap_conn { /** * struct tcp_splice_conn - Descriptor for a spliced TCP connection * @f: Generic flow information - * @in_epoll: Is the connection in the epoll set? * @s: File descriptor for sockets * @pipe: File descriptors for pipes - * @events: Events observed/actions performed on connection - * @flags: Connection flags (attributes, not events) * @read: Bytes read (not fully written to other side in one shot) * @written: Bytes written (not fully written from one other side read) -*/ + * @events: Events observed/actions performed on connection + * @flags: Connection flags (attributes, not events) + * @in_epoll: Is the connection in the epoll set? + */ struct tcp_splice_conn { /* Must be first element */ struct flow_common f; - bool in_epoll :1; int s[SIDES]; int pipe[SIDES][2]; + uint32_t read[SIDES]; + uint32_t written[SIDES]; + uint8_t events; #define SPLICE_CLOSED 0 #define SPLICE_CONNECT BIT(0) @@ -139,8 +130,7 @@ struct tcp_splice_conn { #define RCVLOWAT_ACT(sidei_) ((sidei_) ? BIT(4) : BIT(3)) #define CLOSING BIT(5) - uint32_t read[SIDES]; - uint32_t written[SIDES]; + bool in_epoll :1; }; /* Socket pools */ |