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Differential D20655 Diff 65132 head/sys/netinet/tcp_var.h

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head/sys/netinet/tcp_var.h

Show First 20 Lines • Show All 204 Lines • ▼ Show 20 Linesstruct tcpcb {
u_int t_keepintvl; /* interval between keepalives */ u_int t_keepintvl; /* interval between keepalives */
u_int t_keepcnt; /* number of keepalives before close */ u_int t_keepcnt; /* number of keepalives before close */
int t_dupacks; /* consecutive dup acks recd */ int t_dupacks; /* consecutive dup acks recd */
int t_lognum; /* Number of log entries */ int t_lognum; /* Number of log entries */
struct tcp_log_stailq t_logs; /* Log buffer */ struct tcp_log_stailq t_logs; /* Log buffer */
struct tcp_log_id_node *t_lin; struct tcp_log_id_node *t_lin;
struct tcp_log_id_bucket *t_lib; struct tcp_log_id_bucket *t_lib;
const char *t_output_caller; /* Function that called tcp_output */ const char *t_output_caller; /* Function that called tcp_output */
struct statsblob *t_stats; /* Per-connection stats */
uint32_t t_logsn; /* Log "serial number" */ uint32_t t_logsn; /* Log "serial number" */
uint32_t gput_ts; /* Time goodput measurement started */
tcp_seq gput_seq; /* Outbound measurement seq */
tcp_seq gput_ack; /* Inbound measurement ack */
int32_t t_stats_gput_prev; /* XXXLAS: Prev gput measurement */
uint8_t t_tfo_client_cookie_len; /* TCP Fast Open client cookie length */ uint8_t t_tfo_client_cookie_len; /* TCP Fast Open client cookie length */
unsigned int *t_tfo_pending; /* TCP Fast Open server pending counter */ unsigned int *t_tfo_pending; /* TCP Fast Open server pending counter */
union { union {
uint8_t client[TCP_FASTOPEN_MAX_COOKIE_LEN]; uint8_t client[TCP_FASTOPEN_MAX_COOKIE_LEN];
uint64_t server; uint64_t server;
} t_tfo_cookie; /* TCP Fast Open cookie to send */ } t_tfo_cookie; /* TCP Fast Open cookie to send */
#ifdef TCPPCAP #ifdef TCPPCAP
struct mbufq t_inpkts; /* List of saved input packets. */ struct mbufq t_inpkts; /* List of saved input packets. */
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#define TF_REQ_TSTMP 0x00000080 /* have/will request timestamps */ #define TF_REQ_TSTMP 0x00000080 /* have/will request timestamps */
#define TF_RCVD_TSTMP 0x00000100 /* a timestamp was received in SYN */ #define TF_RCVD_TSTMP 0x00000100 /* a timestamp was received in SYN */
#define TF_SACK_PERMIT 0x00000200 /* other side said I could SACK */ #define TF_SACK_PERMIT 0x00000200 /* other side said I could SACK */
#define TF_NEEDSYN 0x00000400 /* send SYN (implicit state) */ #define TF_NEEDSYN 0x00000400 /* send SYN (implicit state) */
#define TF_NEEDFIN 0x00000800 /* send FIN (implicit state) */ #define TF_NEEDFIN 0x00000800 /* send FIN (implicit state) */
#define TF_NOPUSH 0x00001000 /* don't push */ #define TF_NOPUSH 0x00001000 /* don't push */
#define TF_PREVVALID 0x00002000 /* saved values for bad rxmit valid */ #define TF_PREVVALID 0x00002000 /* saved values for bad rxmit valid */
#define TF_UNUSED1 0x00004000 /* unused */ #define TF_UNUSED1 0x00004000 /* unused */
#define TF_UNUSED2 0x00008000 /* unused */ #define TF_GPUTINPROG 0x00008000 /* Goodput measurement in progress */
#define TF_MORETOCOME 0x00010000 /* More data to be appended to sock */ #define TF_MORETOCOME 0x00010000 /* More data to be appended to sock */
#define TF_LQ_OVERFLOW 0x00020000 /* listen queue overflow */ #define TF_LQ_OVERFLOW 0x00020000 /* listen queue overflow */
#define TF_LASTIDLE 0x00040000 /* connection was previously idle */ #define TF_LASTIDLE 0x00040000 /* connection was previously idle */
#define TF_RXWIN0SENT 0x00080000 /* sent a receiver win 0 in response */ #define TF_RXWIN0SENT 0x00080000 /* sent a receiver win 0 in response */
#define TF_FASTRECOVERY 0x00100000 /* in NewReno Fast Recovery */ #define TF_FASTRECOVERY 0x00100000 /* in NewReno Fast Recovery */
#define TF_WASFRECOVERY 0x00200000 /* was in NewReno Fast Recovery */ #define TF_WASFRECOVERY 0x00200000 /* was in NewReno Fast Recovery */
#define TF_SIGNATURE 0x00400000 /* require MD5 digests (RFC2385) */ #define TF_SIGNATURE 0x00400000 /* require MD5 digests (RFC2385) */
#define TF_FORCEDATA 0x00800000 /* force out a byte */ #define TF_FORCEDATA 0x00800000 /* force out a byte */
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VNET_DECLARE(int, tcp_do_sack); VNET_DECLARE(int, tcp_do_sack);
VNET_DECLARE(int, tcp_do_tso); VNET_DECLARE(int, tcp_do_tso);
VNET_DECLARE(int, tcp_ecn_maxretries); VNET_DECLARE(int, tcp_ecn_maxretries);
VNET_DECLARE(int, tcp_initcwnd_segments); VNET_DECLARE(int, tcp_initcwnd_segments);
VNET_DECLARE(int, tcp_insecure_rst); VNET_DECLARE(int, tcp_insecure_rst);
VNET_DECLARE(int, tcp_insecure_syn); VNET_DECLARE(int, tcp_insecure_syn);
VNET_DECLARE(int, tcp_minmss); VNET_DECLARE(int, tcp_minmss);
VNET_DECLARE(int, tcp_mssdflt); VNET_DECLARE(int, tcp_mssdflt);
#ifdef STATS
VNET_DECLARE(int, tcp_perconn_stats_dflt_tpl);
VNET_DECLARE(int, tcp_perconn_stats_enable);
#endif /* STATS */
VNET_DECLARE(int, tcp_recvspace); VNET_DECLARE(int, tcp_recvspace);
VNET_DECLARE(int, tcp_sack_globalholes); VNET_DECLARE(int, tcp_sack_globalholes);
VNET_DECLARE(int, tcp_sack_globalmaxholes); VNET_DECLARE(int, tcp_sack_globalmaxholes);
VNET_DECLARE(int, tcp_sack_maxholes); VNET_DECLARE(int, tcp_sack_maxholes);
VNET_DECLARE(int, tcp_sc_rst_sock_fail); VNET_DECLARE(int, tcp_sc_rst_sock_fail);
VNET_DECLARE(int, tcp_sendspace); VNET_DECLARE(int, tcp_sendspace);
VNET_DECLARE(struct inpcbhead, tcb); VNET_DECLARE(struct inpcbhead, tcb);
VNET_DECLARE(struct inpcbinfo, tcbinfo); VNET_DECLARE(struct inpcbinfo, tcbinfo);
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#define V_tcp_do_sack VNET(tcp_do_sack) #define V_tcp_do_sack VNET(tcp_do_sack)
#define V_tcp_do_tso VNET(tcp_do_tso) #define V_tcp_do_tso VNET(tcp_do_tso)
#define V_tcp_ecn_maxretries VNET(tcp_ecn_maxretries) #define V_tcp_ecn_maxretries VNET(tcp_ecn_maxretries)
#define V_tcp_initcwnd_segments VNET(tcp_initcwnd_segments) #define V_tcp_initcwnd_segments VNET(tcp_initcwnd_segments)
#define V_tcp_insecure_rst VNET(tcp_insecure_rst) #define V_tcp_insecure_rst VNET(tcp_insecure_rst)
#define V_tcp_insecure_syn VNET(tcp_insecure_syn) #define V_tcp_insecure_syn VNET(tcp_insecure_syn)
#define V_tcp_minmss VNET(tcp_minmss) #define V_tcp_minmss VNET(tcp_minmss)
#define V_tcp_mssdflt VNET(tcp_mssdflt) #define V_tcp_mssdflt VNET(tcp_mssdflt)
#ifdef STATS
#define V_tcp_perconn_stats_dflt_tpl VNET(tcp_perconn_stats_dflt_tpl)
#define V_tcp_perconn_stats_enable VNET(tcp_perconn_stats_enable)
#endif /* STATS */
#define V_tcp_recvspace VNET(tcp_recvspace) #define V_tcp_recvspace VNET(tcp_recvspace)
#define V_tcp_sack_globalholes VNET(tcp_sack_globalholes) #define V_tcp_sack_globalholes VNET(tcp_sack_globalholes)
#define V_tcp_sack_globalmaxholes VNET(tcp_sack_globalmaxholes) #define V_tcp_sack_globalmaxholes VNET(tcp_sack_globalmaxholes)
#define V_tcp_sack_maxholes VNET(tcp_sack_maxholes) #define V_tcp_sack_maxholes VNET(tcp_sack_maxholes)
#define V_tcp_sc_rst_sock_fail VNET(tcp_sc_rst_sock_fail) #define V_tcp_sc_rst_sock_fail VNET(tcp_sc_rst_sock_fail)
#define V_tcp_sendspace VNET(tcp_sendspace) #define V_tcp_sendspace VNET(tcp_sendspace)
#define V_tcp_udp_tunneling_overhead VNET(tcp_udp_tunneling_overhead) #define V_tcp_udp_tunneling_overhead VNET(tcp_udp_tunneling_overhead)
#define V_tcp_udp_tunneling_port VNET(tcp_udp_tunneling_port) #define V_tcp_udp_tunneling_port VNET(tcp_udp_tunneling_port)
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void tcp_sack_adjust(struct tcpcb *tp); void tcp_sack_adjust(struct tcpcb *tp);
struct sackhole *tcp_sack_output(struct tcpcb *tp, int *sack_bytes_rexmt); struct sackhole *tcp_sack_output(struct tcpcb *tp, int *sack_bytes_rexmt);
void tcp_sack_partialack(struct tcpcb *, struct tcphdr *); void tcp_sack_partialack(struct tcpcb *, struct tcphdr *);
void tcp_free_sackholes(struct tcpcb *tp); void tcp_free_sackholes(struct tcpcb *tp);
int tcp_newreno(struct tcpcb *, struct tcphdr *); int tcp_newreno(struct tcpcb *, struct tcphdr *);
int tcp_compute_pipe(struct tcpcb *); int tcp_compute_pipe(struct tcpcb *);
uint32_t tcp_compute_initwnd(uint32_t); uint32_t tcp_compute_initwnd(uint32_t);
void tcp_sndbuf_autoscale(struct tcpcb *, struct socket *, uint32_t); void tcp_sndbuf_autoscale(struct tcpcb *, struct socket *, uint32_t);
int tcp_stats_sample_rollthedice(struct tcpcb *tp, void *seed_bytes,
size_t seed_len);
struct mbuf * struct mbuf *
tcp_m_copym(struct mbuf *m, int32_t off0, int32_t *plen, tcp_m_copym(struct mbuf *m, int32_t off0, int32_t *plen,
int32_t seglimit, int32_t segsize, struct sockbuf *sb, bool hw_tls); int32_t seglimit, int32_t segsize, struct sockbuf *sb, bool hw_tls);
int tcp_stats_init(void);
static inline void static inline void
tcp_fields_to_host(struct tcphdr *th) tcp_fields_to_host(struct tcphdr *th)
{ {
th->th_seq = ntohl(th->th_seq); th->th_seq = ntohl(th->th_seq);
th->th_ack = ntohl(th->th_ack); th->th_ack = ntohl(th->th_ack);
th->th_win = ntohs(th->th_win); th->th_win = ntohs(th->th_win);
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