diff options
| author | Michael Brown | 2010-07-15 20:15:36 +0200 |
|---|---|---|
| committer | Michael Brown | 2010-07-15 20:59:57 +0200 |
| commit | 75505942acf44c5f130d1a047ad5a701a43d94a1 (patch) | |
| tree | 7399a8c7d9398cd2b1fdec51cf9de0160dde8bb0 /src/net/tcp.c | |
| parent | [tcp] Use a dedicated timer for the TIME_WAIT state (diff) | |
| download | ipxe-75505942acf44c5f130d1a047ad5a701a43d94a1.tar.gz ipxe-75505942acf44c5f130d1a047ad5a701a43d94a1.tar.xz ipxe-75505942acf44c5f130d1a047ad5a701a43d94a1.zip | |
[tcp] Merge boolean flags into a single "flags" field
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/net/tcp.c')
| -rw-r--r-- | src/net/tcp.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/src/net/tcp.c b/src/net/tcp.c index 67deac90..234e39a6 100644 --- a/src/net/tcp.c +++ b/src/net/tcp.c @@ -30,10 +30,11 @@ struct tcp_connection { /** List of TCP connections */ struct list_head list; + /** Flags */ + unsigned int flags; + /** Data transfer interface */ struct interface xfer; - /** Data transfer interface closed flag */ - int xfer_closed; /** Remote socket address */ struct sockaddr_tcpip peer; @@ -77,8 +78,6 @@ struct tcp_connection { * Equivalent to TS.Recent in RFC 1323 terminology. */ uint32_t ts_recent; - /** Timestamps enabled */ - int timestamps; /** Transmit queue */ struct list_head queue; @@ -88,6 +87,14 @@ struct tcp_connection { struct retry_timer wait; }; +/** TCP flags */ +enum tcp_flags { + /** TCP data transfer interface has been closed */ + TCP_XFER_CLOSED = 0x0001, + /** TCP timestamps are enabled */ + TCP_TS_ENABLED = 0x0002, +}; + /** * List of registered TCP connections */ @@ -275,7 +282,7 @@ static void tcp_close ( struct tcp_connection *tcp, int rc ) { /* Close data transfer interface */ intf_shutdown ( &tcp->xfer, rc ); - tcp->xfer_closed = 1; + tcp->flags |= TCP_XFER_CLOSED; /* If we are in CLOSED, or have otherwise not yet received a * SYN (i.e. we are in LISTEN or SYN_SENT), just delete the @@ -474,7 +481,7 @@ static int tcp_xmit ( struct tcp_connection *tcp, int force_send ) { mssopt->length = sizeof ( *mssopt ); mssopt->mss = htons ( TCP_MSS ); } - if ( ( flags & TCP_SYN ) || tcp->timestamps ) { + if ( ( flags & TCP_SYN ) || ( tcp->flags & TCP_TS_ENABLED ) ) { tsopt = iob_push ( iobuf, sizeof ( *tsopt ) ); memset ( tsopt->nop, TCP_OPTION_NOP, sizeof ( tsopt->nop ) ); tsopt->tsopt.kind = TCP_OPTION_TS; @@ -719,7 +726,7 @@ static int tcp_rx_syn ( struct tcp_connection *tcp, uint32_t seq, if ( ! ( tcp->tcp_state & TCP_STATE_RCVD ( TCP_SYN ) ) ) { tcp->rcv_ack = seq; if ( options->tsopt ) - tcp->timestamps = 1; + tcp->flags |= TCP_TS_ENABLED; } /* Ignore duplicate SYN */ @@ -801,7 +808,7 @@ static int tcp_rx_ack ( struct tcp_connection *tcp, uint32_t ack, tcp->tcp_state |= TCP_STATE_ACKED ( acked_flags ); /* Start sending FIN if we've had all possible data ACKed */ - if ( list_empty ( &tcp->queue ) && tcp->xfer_closed ) + if ( list_empty ( &tcp->queue ) && ( tcp->flags & TCP_XFER_CLOSED ) ) tcp->tcp_state |= TCP_STATE_SENT ( TCP_FIN ); return 0; |