diff options
57 files changed, 682 insertions, 97 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index f928eb02e..c880ef3e2 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -576,4 +576,7 @@ and not recv() is in-place when a TCP/IP packet is received, the packet is placed into a read-ahead buffer. However, the old contents of the read-ahead buffer were not being cleared and old data would contaminate the newly received buffer. + * Implemented support for connection backlog. The size of the backlog is specified by the + second argument of the standard listen() API. Hooks are provided to support poll()/select() + waiting for connections, with a subsequent call to accept() to use the backlogged connection. diff --git a/nuttx/Documentation/NuttX.html b/nuttx/Documentation/NuttX.html index 39ba8dcc3..3dd0d53fa 100644 --- a/nuttx/Documentation/NuttX.html +++ b/nuttx/Documentation/NuttX.html @@ -8,7 +8,7 @@ <tr align="center" bgcolor="#e4e4e4"> <td> <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1> - <p>Last Updated: November 17, 2008</p> + <p>Last Updated: November 20, 2008</p> </td> </tr> </table> @@ -1212,6 +1212,9 @@ nuttx-0.3.19 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> and not recv() is in-place when a TCP/IP packet is received, the packet is placed into a read-ahead buffer. However, the old contents of the read-ahead buffer were not being cleared and old data would contaminate the newly received buffer. + * Implemented support for connection backlog. The size of the backlog is specified by the + second argument of the standard listen() API. Hooks are provided to support poll()/select() + waiting for connections, with a subsequent call to accept() to use the backlogged connection. pascal-0.1.3 2008-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr> diff --git a/nuttx/Documentation/NuttxPortingGuide.html b/nuttx/Documentation/NuttxPortingGuide.html index f32138fcd..0d3b978d0 100644 --- a/nuttx/Documentation/NuttxPortingGuide.html +++ b/nuttx/Documentation/NuttxPortingGuide.html @@ -1595,6 +1595,11 @@ The system can be re-made subsequently by just typing <code>make</code>. <code>CONFIG_NET_TCP_CONNS</code>: Maximum number of TCP connections (all tasks). </li> <li> + <code>CONFIG_NET_TCPBACKLOG</code>: + Incoming connections pend in a backlog until <code>accept()</code> is called. + The size of the backlog is selected when <code>listen()</code> is called. + </li> + <li> <code>CONFIG_NET_TCP_READAHEAD_BUFSIZE</code>: Size of TCP read-ahead buffers </li> <li> diff --git a/nuttx/Documentation/NuttxUserGuide.html b/nuttx/Documentation/NuttxUserGuide.html index e843908a7..0dfa64a87 100644 --- a/nuttx/Documentation/NuttxUserGuide.html +++ b/nuttx/Documentation/NuttxUserGuide.html @@ -6070,6 +6070,14 @@ interface of the same name. <li><code>CONFIG_NET_NTCP_READAHEAD_BUFFERS</code> Defined to be greater than zero</li> </ul> <p> + In order to for select to work with incoming connections, you must also select: +</p> +<ul> + <li><code>CONFIG_NET_TCPBACKLOG</code> + Incoming connections pend in a backlog until <code>accept()</cod> is called. + The size of the backlog is selected when <code>listen()</code> is called.</li> +</ul> +<p> <b>Input Parameters:</b> </p> <ul> diff --git a/nuttx/TODO b/nuttx/TODO index 4d31d9dbd..e90e10e9c 100644 --- a/nuttx/TODO +++ b/nuttx/TODO @@ -1,4 +1,4 @@ -NuttX TODO List (Last updated November 17, 2008) +NuttX TODO List (Last updated November 19, 2008) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (7) Task/Scheduler (sched/) @@ -7,7 +7,7 @@ NuttX TODO List (Last updated November 17, 2008) (1) Signals (sched/, arch/) (1) pthreads (sched/) (1) C++ Support - (14) Network (net/, netutils/) + (15) Network (net/, netutils/) (1) USB (drivers/usbdev) (4) Libraries (lib/) (6) File system/Generic drivers (fs/, drivers/) diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt index 750d945a9..176cbbe6f 100644 --- a/nuttx/configs/README.txt +++ b/nuttx/configs/README.txt @@ -287,6 +287,9 @@ defconfig -- This is a configuration file similar to the Linux CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) + CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until + accept() is called. The size of the backlog is selected when listen() + is called. CONFIG_NET_UDP - UDP support on or off CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP diff --git a/nuttx/configs/c5471evm/defconfig b/nuttx/configs/c5471evm/defconfig index 5b5c70ed3..e388541aa 100644 --- a/nuttx/configs/c5471evm/defconfig +++ b/nuttx/configs/c5471evm/defconfig @@ -279,6 +279,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -300,6 +302,7 @@ CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=n CONFIG_NET_TCP_CONNS=40 CONFIG_NET_NTCP_READAHEAD_BUFFERS=8 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=40 CONFIG_NET_UDP=n CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/c5471evm/dhcpconfig b/nuttx/configs/c5471evm/dhcpconfig index 7a44e126c..8359dd6c9 100644 --- a/nuttx/configs/c5471evm/dhcpconfig +++ b/nuttx/configs/c5471evm/dhcpconfig @@ -279,6 +279,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -300,6 +302,7 @@ CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=n CONFIG_NET_TCP_CONNS=0 CONFIG_NET_NTCP_READAHEAD_BUFFERS=0 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=0 CONFIG_NET_UDP=y CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/c5471evm/netconfig b/nuttx/configs/c5471evm/netconfig index 135f87ec9..61c3176f7 100644 --- a/nuttx/configs/c5471evm/netconfig +++ b/nuttx/configs/c5471evm/netconfig @@ -279,6 +279,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -300,6 +302,7 @@ CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=y CONFIG_NET_TCP_CONNS=8 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=8 CONFIG_NET_UDP=n CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/c5471evm/nshconfig b/nuttx/configs/c5471evm/nshconfig index 39a3b1121..c6566fe0f 100644 --- a/nuttx/configs/c5471evm/nshconfig +++ b/nuttx/configs/c5471evm/nshconfig @@ -279,6 +279,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -300,6 +302,7 @@ CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=y CONFIG_NET_TCP_CONNS=8 CONFIG_NET_NTCP_READAHEAD_BUFFERS=32 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=8 CONFIG_NET_UDP=n CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/ez80f910200kitg/ostest/defconfig b/nuttx/configs/ez80f910200kitg/ostest/defconfig index 117495ba3..12b9efb78 100644 --- a/nuttx/configs/ez80f910200kitg/ostest/defconfig +++ b/nuttx/configs/ez80f910200kitg/ostest/defconfig @@ -279,6 +279,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/m68332evb/defconfig b/nuttx/configs/m68332evb/defconfig index 12af3888a..2e668f2bb 100644 --- a/nuttx/configs/m68332evb/defconfig +++ b/nuttx/configs/m68332evb/defconfig @@ -263,6 +263,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/mcu123-lpc214x/nsh/defconfig b/nuttx/configs/mcu123-lpc214x/nsh/defconfig index 9f6d9edd7..f7ea9ae7b 100644 --- a/nuttx/configs/mcu123-lpc214x/nsh/defconfig +++ b/nuttx/configs/mcu123-lpc214x/nsh/defconfig @@ -316,6 +316,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/mcu123-lpc214x/ostest/defconfig b/nuttx/configs/mcu123-lpc214x/ostest/defconfig index be623258c..83824dd65 100644 --- a/nuttx/configs/mcu123-lpc214x/ostest/defconfig +++ b/nuttx/configs/mcu123-lpc214x/ostest/defconfig @@ -311,6 +311,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/mcu123-lpc214x/usbserial/defconfig b/nuttx/configs/mcu123-lpc214x/usbserial/defconfig index 63cabf7c4..cd318b422 100644 --- a/nuttx/configs/mcu123-lpc214x/usbserial/defconfig +++ b/nuttx/configs/mcu123-lpc214x/usbserial/defconfig @@ -312,6 +312,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig b/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig index aeaa2e914..294e3fc8f 100644 --- a/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig +++ b/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig @@ -312,6 +312,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/ntosd-dm320/nettest/defconfig b/nuttx/configs/ntosd-dm320/nettest/defconfig index f25b9ac8b..eea5c03c6 100644 --- a/nuttx/configs/ntosd-dm320/nettest/defconfig +++ b/nuttx/configs/ntosd-dm320/nettest/defconfig @@ -277,6 +277,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -297,6 +299,8 @@ CONFIG_NET_SOCKOPTS=y CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=y CONFIG_NET_TCP_CONNS=8 +CONFIG_NET_NTCP_READAHEAD_BUFFERS=16 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=8 CONFIG_NET_UDP=n CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/ntosd-dm320/nsh/defconfig b/nuttx/configs/ntosd-dm320/nsh/defconfig index e1b318dd4..1134b7204 100644 --- a/nuttx/configs/ntosd-dm320/nsh/defconfig +++ b/nuttx/configs/ntosd-dm320/nsh/defconfig @@ -285,6 +285,8 @@ CONFIG_FS_ROMFS=y # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -305,6 +307,8 @@ CONFIG_NET_SOCKOPTS=y CONFIG_NET_BUFSIZE=562 CONFIG_NET_TCP=y CONFIG_NET_TCP_CONNS=8 +CONFIG_NET_NTCP_READAHEAD_BUFFERS=16 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=8 CONFIG_NET_UDP=y CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/ntosd-dm320/ostest/defconfig b/nuttx/configs/ntosd-dm320/ostest/defconfig index c4f70d85f..96dfa7127 100644 --- a/nuttx/configs/ntosd-dm320/ostest/defconfig +++ b/nuttx/configs/ntosd-dm320/ostest/defconfig @@ -277,6 +277,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/ntosd-dm320/poll/defconfig b/nuttx/configs/ntosd-dm320/poll/defconfig index c7dd78daf..f88a6b951 100644 --- a/nuttx/configs/ntosd-dm320/poll/defconfig +++ b/nuttx/configs/ntosd-dm320/poll/defconfig @@ -277,6 +277,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -297,7 +299,8 @@ CONFIG_NET_SOCKOPTS=y CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=y CONFIG_NET_TCP_CONNS=8 -CONFIG_NET_TCP_READAHEAD_BUFSIZE=16 +CONFIG_NET_NTCP_READAHEAD_BUFFERS=16 +CONFIG_NET_TCPBACKLOG=y CONFIG_NET_MAX_LISTENPORTS=8 CONFIG_NET_UDP=n CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/ntosd-dm320/udp/defconfig b/nuttx/configs/ntosd-dm320/udp/defconfig index f2562d2ee..8237ac4b3 100644 --- a/nuttx/configs/ntosd-dm320/udp/defconfig +++ b/nuttx/configs/ntosd-dm320/udp/defconfig @@ -277,6 +277,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -297,6 +299,8 @@ CONFIG_NET_SOCKOPTS=y CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=n CONFIG_NET_TCP_CONNS=0 +CONFIG_NET_NTCP_READAHEAD_BUFFERS=16 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=0 CONFIG_NET_UDP=y CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/ntosd-dm320/uip/defconfig b/nuttx/configs/ntosd-dm320/uip/defconfig index 3219b4e86..190d5f185 100644 --- a/nuttx/configs/ntosd-dm320/uip/defconfig +++ b/nuttx/configs/ntosd-dm320/uip/defconfig @@ -277,6 +277,8 @@ CONFIG_PREALLOC_TIMERS=8 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off @@ -297,6 +299,8 @@ CONFIG_NET_SOCKOPTS=y CONFIG_NET_BUFSIZE=420 CONFIG_NET_TCP=y CONFIG_NET_TCP_CONNS=8 +CONFIG_NET_NTCP_READAHEAD_BUFFERS=16 +CONFIG_NET_TCPBACKLOG=n CONFIG_NET_MAX_LISTENPORTS=8 CONFIG_NET_UDP=n CONFIG_NET_UDP_CHECKSUMS=y diff --git a/nuttx/configs/olimex-strp711/ostest/defconfig b/nuttx/configs/olimex-strp711/ostest/defconfig index 1632dbb08..17f0d90a4 100644 --- a/nuttx/configs/olimex-strp711/ostest/defconfig +++ b/nuttx/configs/olimex-strp711/ostest/defconfig @@ -378,6 +378,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/pjrc-8051/defconfig b/nuttx/configs/pjrc-8051/defconfig index 934e255a8..68cf619c0 100644 --- a/nuttx/configs/pjrc-8051/defconfig +++ b/nuttx/configs/pjrc-8051/defconfig @@ -260,6 +260,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/sim/mount/defconfig b/nuttx/configs/sim/mount/defconfig index 2c39b55a9..ff24f5bff 100644 --- a/nuttx/configs/sim/mount/defconfig +++ b/nuttx/configs/sim/mount/defconfig @@ -235,6 +235,8 @@ CONFIG_FS_ROMFS=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/sim/nettest/defconfig b/nuttx/configs/sim/nettest/defconfig index f211b86cc..65a0a5c48 100644 --- a/nuttx/configs/sim/nettest/defconfig +++ b/nuttx/configs/sim/nettest/defconfig @@ -235,6 +235,8 @@ CONFIG_FS_ROMFS=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/sim/nsh/defconfig b/nuttx/configs/sim/nsh/defconfig index 3ea4b4e44..f5a0531f9 100644 --- a/nuttx/configs/sim/nsh/defconfig +++ b/nuttx/configs/sim/nsh/defconfig @@ -235,6 +235,8 @@ CONFIG_FS_ROMFS=y # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/sim/ostest/defconfig b/nuttx/configs/sim/ostest/defconfig index 4c1249466..4ea688e85 100644 --- a/nuttx/configs/sim/ostest/defconfig +++ b/nuttx/configs/sim/ostest/defconfig @@ -236,6 +236,8 @@ CONFIG_FS_ROMFS=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/sim/pashello/defconfig b/nuttx/configs/sim/pashello/defconfig index 164c4ac6b..67dd4688c 100644 --- a/nuttx/configs/sim/pashello/defconfig +++ b/nuttx/configs/sim/pashello/defconfig @@ -235,6 +235,8 @@ CONFIG_FS_ROMFS=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/us7032evb1/nsh/defconfig b/nuttx/configs/us7032evb1/nsh/defconfig index e4e150b09..b97c94185 100644 --- a/nuttx/configs/us7032evb1/nsh/defconfig +++ b/nuttx/configs/us7032evb1/nsh/defconfig @@ -330,6 +330,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/us7032evb1/ostest/defconfig b/nuttx/configs/us7032evb1/ostest/defconfig index e21df0942..ae3160cb6 100644 --- a/nuttx/configs/us7032evb1/ostest/defconfig +++ b/nuttx/configs/us7032evb1/ostest/defconfig @@ -330,6 +330,8 @@ CONFIG_MMCSD_READONLY=n # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/xtrs/nsh/defconfig b/nuttx/configs/xtrs/nsh/defconfig index d26ff9d06..0938ef807 100644 --- a/nuttx/configs/xtrs/nsh/defconfig +++ b/nuttx/configs/xtrs/nsh/defconfig @@ -256,6 +256,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/xtrs/ostest/defconfig b/nuttx/configs/xtrs/ostest/defconfig index b17d18c23..4ede528f3 100644 --- a/nuttx/configs/xtrs/ostest/defconfig +++ b/nuttx/configs/xtrs/ostest/defconfig @@ -256,6 +256,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/xtrs/pashello/defconfig b/nuttx/configs/xtrs/pashello/defconfig index 7e7e7f986..cca03f9d7 100644 --- a/nuttx/configs/xtrs/pashello/defconfig +++ b/nuttx/configs/xtrs/pashello/defconfig @@ -256,6 +256,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z16f2800100zcog/ostest/defconfig b/nuttx/configs/z16f2800100zcog/ostest/defconfig index 6b3959ec4..a7706199a 100644 --- a/nuttx/configs/z16f2800100zcog/ostest/defconfig +++ b/nuttx/configs/z16f2800100zcog/ostest/defconfig @@ -282,6 +282,8 @@ CONFIG_PREALLOC_TIMERS=4 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z16f2800100zcog/pashello/defconfig b/nuttx/configs/z16f2800100zcog/pashello/defconfig index d1ac37bd3..0ea008a40 100644 --- a/nuttx/configs/z16f2800100zcog/pashello/defconfig +++ b/nuttx/configs/z16f2800100zcog/pashello/defconfig @@ -282,6 +282,8 @@ CONFIG_PREALLOC_TIMERS=4 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z80sim/nsh/defconfig b/nuttx/configs/z80sim/nsh/defconfig index 0589cdc06..14fd9c0c2 100644 --- a/nuttx/configs/z80sim/nsh/defconfig +++ b/nuttx/configs/z80sim/nsh/defconfig @@ -246,6 +246,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z80sim/ostest/defconfig b/nuttx/configs/z80sim/ostest/defconfig index ecf71cb6d..0dc407750 100644 --- a/nuttx/configs/z80sim/ostest/defconfig +++ b/nuttx/configs/z80sim/ostest/defconfig @@ -246,6 +246,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z80sim/pashello/defconfig b/nuttx/configs/z80sim/pashello/defconfig index 4e2e6a6a0..cad124da5 100644 --- a/nuttx/configs/z80sim/pashello/defconfig +++ b/nuttx/configs/z80sim/pashello/defconfig @@ -246,6 +246,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z8encore000zco/ostest/defconfig b/nuttx/configs/z8encore000zco/ostest/defconfig index 4f8a8c4e2..776cecd08 100644 --- a/nuttx/configs/z8encore000zco/ostest/defconfig +++ b/nuttx/configs/z8encore000zco/ostest/defconfig @@ -280,6 +280,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/configs/z8f64200100kit/ostest/defconfig b/nuttx/configs/z8f64200100kit/ostest/defconfig index 444ff59d0..50df6ae07 100644 --- a/nuttx/configs/z8f64200100kit/ostest/defconfig +++ b/nuttx/configs/z8f64200100kit/ostest/defconfig @@ -280,6 +280,8 @@ CONFIG_PREALLOC_TIMERS=0 # CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks) # CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers # CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero) +# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until +# accept() is called. The size of the backlog is selected when listen() is called. # CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks) # CONFIG_NET_UDP - UDP support on or off # CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off diff --git a/nuttx/examples/README.txt b/nuttx/examples/README.txt index f6528e5f4..f2a597800 100644 --- a/nuttx/examples/README.txt +++ b/nuttx/examples/README.txt @@ -118,6 +118,11 @@ examples/poll CONFIG_EXAMPLE_POLL_DRIPADDR - Default router IP addess CONFIG_EXAMPLE_POLL_NETMASK - Network mask + In order to for select to work with incoming connections, you + must also select: + + CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until accept() is called. + In additional to the target device-side example, there is also a host-side application in this directory. It can be compiled under Linux or Cygwin as follows: diff --git a/nuttx/examples/poll/Makefile b/nuttx/examples/poll/Makefile index b52719912..e91f5018c 100644 --- a/nuttx/examples/poll/Makefile +++ b/nuttx/examples/poll/Makefile @@ -70,6 +70,6 @@ clean: $(call CLEAN) distclean: clean - @rm -f Make.dep .depend + @rm -f Make.dep .depend host -include Make.dep diff --git a/nuttx/examples/poll/poll_main.c b/nuttx/examples/poll/poll_main.c index 713c77e3a..dbf5eec65 100644 --- a/nuttx/examples/poll/poll_main.c +++ b/nuttx/examples/poll/poll_main.c @@ -156,7 +156,7 @@ int user_start(int argc, char *argv[]) } #ifdef HAVE_NETPOLL -#if 0 /* select doesn't work for connections yet */ +#ifdef CONFIG_NET_TCPBACKLOG message("user_start: Starting net_listener thread\n"); ret = pthread_create(&tid3, NULL, net_listener, NULL); diff --git a/nuttx/include/net/uip/uip-tcp.h b/nuttx/include/net/uip/uip-tcp.h index 409081f28..91c5ecbd0 100644 --- a/nuttx/include/net/uip/uip-tcp.h +++ b/nuttx/include/net/uip/uip-tcp.h @@ -77,19 +77,19 @@ /* The TCP states used in the struct uip_conn tcpstateflags field */ -#define UIP_CLOSED 0 /* The connection is not in use and available */ -#define UIP_ALLOCATED 1 /* The connection is allocated, but not yet initialized */ -#define UIP_SYN_RCVD 2 -#define UIP_SYN_SENT 3 -#define UIP_ESTABLISHED 4 -#define UIP_FIN_WAIT_1 5 -#define UIP_FIN_WAIT_2 6 -#define UIP_CLOSING 7 -#define UIP_TIME_WAIT 8 -#define UIP_LAST_ACK 9 - -#define UIP_TS_MASK 15 -#define UIP_STOPPED 16 +#define UIP_TS_MASK 0x0f /* Bits 0-3: TCP state */ +#define UIP_CLOSED 0x00 /* The connection is not in use and available */ +#define UIP_ALLOCATED 0x01 /* The connection is allocated, but not yet initialized */ +#define UIP_SYN_RCVD 0x02 +#define UIP_SYN_SENT 0x03 +#define UIP_ESTABLISHED 0x04 +#define UIP_FIN_WAIT_1 0x05 +#define UIP_FIN_WAIT_2 0x06 +#define UIP_CLOSING 0x07 +#define UIP_TIME_WAIT 0x08 +#define UIP_LAST_ACK 0x09 +#define UIP_STOPPED 0x10 /* Bit 4: stopped */ + /* Bit 5-7: Unused, but not available */ /* Flag bits in 16-bit flags+ipoffset IPv4 TCP header field */ @@ -118,13 +118,11 @@ struct uip_driver_s; /* Forward reference */ struct uip_callback_s; /* Forward reference */ +struct uip_backlog_s; /* Forward reference */ struct uip_conn { dq_entry_t node; /* Implements a doubly linked list */ -#if 0 /* Not used */ - uip_ipaddr_t lipaddr; /* The local IP address */ -#endif uip_ipaddr_t ripaddr; /* The IP address of the remote host */ uint16 lport; /* The local TCP port, in network byte order */ uint16 rport; /* The remoteTCP port, in network byte order */ @@ -146,10 +144,29 @@ struct uip_conn uint8 nrtx; /* The number of retransmissions for the last * segment sent */ - /* Read-ahead buffering */ + /* Read-ahead buffering. + * + * readahead - A singly linked list of type struct uip_readahead_s + * where the TCP/IP read-ahead data is retained. + */ #if CONFIG_NET_NTCP_READAHEAD_BUFFERS > 0 - sq_queue_t readahead; + sq_queue_t readahead; /* Read-ahead buffering */ +#endif + + /* Listen backlog support + * + * blparent - The backlog parent. If this connection is backlogged, + * this field will be non-null and will refer to the TCP connection + * structure in which this connection is backlogged. + * backlog - The pending connection backlog. If this connection is + * configured as a listener with backlog, then this refers to the + * struct uip_backlog_s tear-off structure that manages that backlog. + */ + +#ifdef CONFIG_NET_TCPBACKLOG + struct uip_conn *blparent; + struct uip_backlog_s *backlog; #endif /* Application callbacks: @@ -204,6 +221,27 @@ struct uip_readahead_s }; #endif +/* Support for listen backlog: + * + * struct uip_blcontainer_s describes one backlogged connection + * struct uip_backlog_s is a "tear-off" describing all backlog for a + * listener connection + */ + +#ifdef CONFIG_NET_TCPBACKLOG +struct uip_blcontainer_s +{ + dq_entry_t bc_node; /* Implements a doubly linked list */ + FAR struct uip_conn *bc_conn; /* Holds reference to the new connection structure */ +}; + +struct uip_backlog_s +{ + dq_queue_t bl_free; /* Implements a doubly-linked list of free containers */ + dq_queue_t bl_pending; /* Implements a doubly-linked list of pending connections */ +}; +#endif + /* The structure holding the TCP/IP statistics that are gathered if * CONFIG_NET_STATISTICS is defined. */ @@ -350,6 +388,27 @@ extern struct uip_readahead_s *uip_tcpreadaheadalloc(void); extern void uip_tcpreadaheadrelease(struct uip_readahead_s *buf); #endif /* CONFIG_NET_NTCP_READAHEAD_BUFFERS */ +/* Backlog support */ + +#ifdef CONFIG_NET_TCPBACKLOG +/* APIs to create and terminate TCP backlog support */ + +extern int uip_backlogcreate(FAR struct uip_conn *conn, int nblg); +extern int uip_backlogdestroy(FAR struct uip_conn *conn); + +/* APIs to manage individual backlog actions */ + +extern int uip_backlogadd(FAR struct uip_conn *conn, FAR struct uip_conn *blconn); +extern FAR struct uip_conn *uip_backlogremove(FAR struct uip_conn *conn); +extern int uip_backlogdelete(FAR struct uip_conn *conn, FAR struct uip_conn *blconn); + +#else +# define uip_backlogcreate(conn,nblg) (-ENOSYS) +# define uip_backlogdestroy(conn) (-ENOSYS) +# define uip_backlogadd(conn,blconn) (-ENOSYS) +# define uip_backlogremove(conn) (NULL) +#endif + /* Tell the sending host to stop sending data. * * This function will close our receiver's window so that we stop diff --git a/nuttx/include/net/uip/uip.h b/nuttx/include/net/uip/uip.h index 54a94bf98..bc79f64e7 100644 --- a/nuttx/include/net/uip/uip.h +++ b/nuttx/include/net/uip/uip.h @@ -81,7 +81,10 @@ * UIP_POLL IN: Used for polling the application. This is provided * periodically from the drivers to support (1) timed * operations, and (2) to check if the application has -* data that it wants to send + * data that it wants to send + * OUT: Not used + * UIP_BACKLOG IN: There is a new connection in the backlog list set + * up by the listen() command. (TCP only) * OUT: Not used * UIP_CLOSE IN: The remote host has closed the connection, thus the * connection has gone away. (TCP only) @@ -110,11 +113,12 @@ #define UIP_SNDACK (1 << 2) #define UIP_REXMIT (1 << 3) #define UIP_POLL (1 << 4) -#define UIP_CLOSE (1 << 5) -#define UIP_ABORT (1 << 6) -#define UIP_CONNECTED (1 << 7) -#define UIP_TIMEDOUT (1 << 8) -#define UIP_ECHOREPLY (1 << 9) +#define UIP_BACKLOG (1 << 5) +#define UIP_CLOSE (1 << 6) +#define UIP_ABORT (1 << 7) +#define UIP_CONNECTED (1 << 8) +#define UIP_TIMEDOUT (1 << 9) +#define UIP_ECHOREPLY (1 << 10) #define UIP_CONN_EVENTS (UIP_CLOSE|UIP_ABORT|UIP_CONNECTED|UIP_TIMEDOUT) diff --git a/nuttx/net/accept.c b/nuttx/net/accept.c index 122e67c43..3fea60b19 100644 --- a/nuttx/net/accept.c +++ b/nuttx/net/accept.c @@ -1,7 +1,7 @@ /**************************************************************************** * net/accept.c * - * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * Redistribution and use in source and binary forms, with or without @@ -289,7 +289,9 @@ int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen) goto errout; } - /* Verify that a valid memory block has been provided to receive the address address */ + /* Verify that a valid memory block has been provided to receive + * the address + */ #ifdef CONFIG_NET_IPv6 if (addr->sa_family != AF_INET6 || *addrlen < sizeof(struct sockaddr_in6)) @@ -301,7 +303,9 @@ int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen) goto errout; } - /* Allocate a socket descriptor for the new connection now (so that it cannot fail later) */ + /* Allocate a socket descriptor for the new connection now + * (so that it cannot fail later) + */ newfd = sockfd_allocate(); if (newfd < 0) @@ -317,68 +321,79 @@ int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen) goto errout_with_socket; } - /* Set the socket state to accepting */ + /* Check the backlog to see if there is a connection already pending + * for this listener. + */ - psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_ACCEPT); + save = irqsave(); + conn = (struct uip_conn *)psock->s_conn; - /* Perform the TCP accept operation */ +#ifdef CONFIG_NET_TCPBACKLOG + state.acpt_newconn = uip_backlogremove(conn); + if (!state.acpt_newconn) +#endif + { + /* Set the socket state to accepting */ - /* Initialize the state structure. This is done with interrupts - * disabled because we don't want anything to happen until we - * are ready. - */ + psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_ACCEPT); - save = irqsave(); - state.acpt_addr = inaddr; - state.acpt_newconn = NULL; - state.acpt_result = OK; - sem_init(&state.acpt_sem, 0, 0); + /* Perform the TCP accept operation */ - /* Set up the callback in the connection */ + /* Initialize the state structure. This is done with interrupts + * disabled because we don't want anything to happen until we + * are ready. + */ - conn = (struct uip_conn *)psock->s_conn; - conn->accept_private = (void*)&state; - conn->accept = accept_interrupt; + state.acpt_addr = inaddr; + state.acpt_newconn = NULL; + state.acpt_result = OK; + sem_init(&state.acpt_sem, 0, 0); - /* Wait for the send to complete or an error to occur: NOTES: (1) - * sem_wait will also terminate if a signal is received, (2) interrupts - * are disabled! They will be re-enabled while the task sleeps and - * automatically re-enabled when the task restarts. - */ + /* Set up the callback in the connection */ - ret = sem_wait(&state.acpt_sem); + conn->accept_private = (void*)&state; + conn->accept = accept_interrupt; - /* Make sure that no further interrupts are processed */ + /* Wait for the send to complete or an error to occur: NOTES: (1) + * sem_wait will also terminate if a signal is received, (2) interrupts + * are disabled! They will be re-enabled while the task sleeps and + * automatically re-enabled when the task restarts. + */ - conn->accept_private = NULL; - conn->accept = NULL; + ret = sem_wait(&state.acpt_sem); - sem_destroy(&state. acpt_sem); - irqrestore(save); + /* Make sure that no further interrupts are processed */ - /* Set the socket state to idle */ + conn->accept_private = NULL; + conn->accept = NULL; - psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_IDLE); + sem_destroy(&state. acpt_sem); - /* Check for a errors. Errors are signaled by negative errno values - * for the send length - */ + /* Set the socket state to idle */ - if (state.acpt_result != 0) - { - err = state.acpt_result; - goto errout_with_socket; - } + psock->s_flags = _SS_SETSTATE(psock->s_flags, _SF_IDLE); - /* If sem_wait failed, then we were probably reawakened by a signal. In - * this case, sem_wait will have set errno appropriately. - */ + /* Check for a errors. Errors are signaled by negative errno values + * for the send length + */ - if (ret < 0) - { - err = -ret; - goto errout_with_socket; + if (state.acpt_result != 0) + { + err = state.acpt_result; + goto errout_with_irq; + } + + /* If sem_wait failed, then we were probably reawakened by a signal. In + * this case, sem_wait will have set errno appropriately. + */ + + if (ret < 0) + { + err = -ret; + goto errout_with_irq; + } } + irqrestore(save); /* Initialize the socket structure and mark the socket as connected */ @@ -387,6 +402,9 @@ int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen) pnewsock->s_flags |= _SF_CONNECTED; return newfd; +errout_with_irq: + irqrestore(save); + errout_with_socket: sockfd_release(newfd); diff --git a/nuttx/net/listen.c b/nuttx/net/listen.c index f2f91b1f4..46bad5d94 100644 --- a/nuttx/net/listen.c +++ b/nuttx/net/listen.c @@ -114,7 +114,7 @@ int listen(int sockfd, int backlog) } /* Verify that the sockfd corresponds to a connected SOCK_STREAM */ - + conn = (struct uip_conn *)psock->s_conn; if (psock->s_type != SOCK_STREAM || !psock->s_conn || conn->lport <= 0) { @@ -122,16 +122,27 @@ int listen(int sockfd, int backlog) goto errout; } + /* Set up the backlog for this connection */ + +#ifdef CONFIG_NET_TCPBACKLOG + err = uip_backlogcreate(conn, backlog); + if (err < 0) + { + err = -err; + goto errout; + } +#endif + /* Start listening to the bound port. This enables callbacks when accept() - * is called; and someday should enable post() or select() logic. + * is called and enables poll()/select() logic. */ - + uip_listen(conn); psock->s_flags |= _SF_LISTENING; return OK; errout: - *get_errno_ptr() = err; + errno = err; return ERROR; } diff --git a/nuttx/net/net-poll.c b/nuttx/net/net-poll.c index 22bd03ce9..6dcb4c2d0 100644 --- a/nuttx/net/net-poll.c +++ b/nuttx/net/net-poll.c @@ -114,9 +114,9 @@ static uint16 poll_interrupt(struct uip_driver_s *dev, FAR void *conn, { pollevent_t eventset = 0; - /* Check for data availability events. */ + /* Check for data or connection availability events. */ - if ((flags & UIP_NEWDATA) != 0) + if ((flags & (UIP_NEWDATA|UIP_BACKLOG)) != 0) { eventset |= POLLIN & fds->events; } @@ -174,8 +174,7 @@ static inline int net_pollsetup(FAR struct socket *psock, struct pollfd *fds) #ifdef CONFIG_DEBUG if (!conn || !fds) { - ret = -EINVAL; - goto errout; + return -EINVAL; } #endif @@ -194,7 +193,7 @@ static inline int net_pollsetup(FAR struct socket *psock, struct pollfd *fds) /* Initialize the callbcack structure */ - cb->flags = UIP_NEWDATA|UIP_POLL|UIP_CLOSE|UIP_ABORT|UIP_TIMEDOUT; + cb->flags = UIP_NEWDATA|UIP_BACKLOG|UIP_POLL|UIP_CLOSE|UIP_ABORT|UIP_TIMEDOUT; cb->private = (FAR void *)fds; cb->event = poll_interrupt; @@ -219,7 +218,6 @@ static inline int net_pollsetup(FAR struct socket *psock, struct pollfd *fds) errout_with_irq: irqrestore(flags); -errout: return ret; } #endif /* HAVE_NETPOLL */ diff --git a/nuttx/net/uip/Make.defs b/nuttx/net/uip/Make.defs index 0a1031684..543a8e856 100644 --- a/nuttx/net/uip/Make.defs +++ b/nuttx/net/uip/Make.defs @@ -53,7 +53,7 @@ ifeq ($(CONFIG_NET_TCP),y) UIP_CSRCS += uip-tcpconn.c uip-tcppoll.c uip-tcptimer.c uip-tcpsend.c \ uip-tcpinput.c uip-tcpappsend.c uip-listen.c uip-tcpcallback.c \ - uip-tcpreadahead.c + uip-tcpreadahead.c uip-tcpbacklog.c endif diff --git a/nuttx/net/uip/uip-internal.h b/nuttx/net/uip/uip-internal.h index 362cecc57..841555760 100644 --- a/nuttx/net/uip/uip-internal.h +++ b/nuttx/net/uip/uip-internal.h @@ -123,7 +123,7 @@ EXTERN void uip_tcptimer(struct uip_driver_s *dev, struct uip_conn *conn, int hs EXTERN void uip_listeninit(void); EXTERN boolean uip_islistener(uint16 port); -EXTERN int uip_accept(struct uip_conn *conn, uint16 portno); +EXTERN int uip_accept(struct uip_driver_s *dev, struct uip_conn *conn, uint16 portno); /* Defined in uip-tcpsend.c *************************************************/ diff --git a/nuttx/net/uip/uip-listen.c b/nuttx/net/uip/uip-listen.c index 82d4238cd..b5e17a6bf 100644 --- a/nuttx/net/uip/uip-listen.c +++ b/nuttx/net/uip/uip-listen.c @@ -228,22 +228,41 @@ boolean uip_islistener(uint16 portno) * ****************************************************************************/ -int uip_accept(struct uip_conn *conn, uint16 portno) +int uip_accept(struct uip_driver_s *dev, struct uip_conn *conn, uint16 portno) { struct uip_conn *listener; int ret = ERROR; /* The interrupt logic has already allocated and initialized a TCP - * connection -- now check if is an application in place to accept the + * connection -- now check there if is an application in place to accept the * connection. */ listener = uip_tcplistener(portno); - if (listener && listener->accept) + if (listener) { - /* Yes.. accept the connection */ + /* Yes, there is a listener. Is it accepting connections now? */ - ret = listener->accept(listener, conn); + if (listener->accept) + { + /* Yes.. accept the connection */ + + ret = listener->accept(listener, conn); + } +#ifdef CONFIG_NET_TCPBACKLOG + else + { + /* Add the connection to the backlog and notify any threads that + * may be waiting on poll()/select() that the connection is available. + */ + + ret = uip_backlogadd(listener, conn); + if (ret == OK) + { + (void)uip_tcpcallback(dev, conn, UIP_BACKLOG); + } + } +#endif } return ret; } diff --git a/nuttx/net/uip/uip-tcpbacklog.c b/nuttx/net/uip/uip-tcpbacklog.c new file mode 100644 index 000000000..152d374ba --- /dev/null +++ b/nuttx/net/uip/uip-tcpbacklog.c @@ -0,0 +1,348 @@ +/**************************************************************************** + * net/uip/uip-tcpbacklog.c + * + * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <net/uip/uipopt.h> +#if defined(CONFIG_NET) && defined(CONFIG_NET_TCP) && defined(CONFIG_NET_TCPBACKLOG) + +#include <sys/types.h> + +#include <stdlib.h> +#include <queue.h> +#include <debug.h> + +#include <net/uip/uip.h> +#include <net/uip/uip-tcp.h> + +#include "uip-internal.h" + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: uip_backlogcreate + * + * Description: + * Called from the listen() logic to setup the backlog as specified in the + * the listen arguments *. + * + * Assumptions: + * Called from normal user code. Interrupts may be disabled. + * + ****************************************************************************/ + +int uip_backlogcreate(FAR struct uip_conn *conn, int nblg) +{ + FAR struct uip_backlog_s *bls = NULL; + FAR struct uip_blcontainer_s *blc; + irqstate_t flags; + int size; + int offset; + int i; + +#ifdef CONFIG_DEBUG + if (!conn) + { + return -EINVAL; + } +#endif + + /* Then allocate the backlog as requested */ + + if (nblg > 0) + { + /* Align the list of backlog structures to 32-bit boundaries. This + * may be excessive on 24-16-bit address machines; and insufficient + * on 64-bit address machines -- REVISIT + */ + + offset = (sizeof(struct uip_backlog_s) + 3) & ~3; + + /* Then determine the full size of the allocation include the + * uip_backlog_s, a pre-allocated array of struct uip_blcontainer_s + * and alignement padding + */ + + size = offset + nblg * sizeof(struct uip_blcontainer_s); + + /* Then allocate that much */ + + bls = (FAR struct uip_backlog_s *)zalloc(size); + if (!bls) + { + return -ENOMEM; + } + + /* Then add all of the pre-allocated containers to the the free list */ + + blc = (FAR struct uip_blcontainer_s*)(((FAR ubyte*)bls) + offset); + for (i = 0; i < nblg; i++) + { + dq_addfirst(&blc->bc_node, &bls->bl_free); + } + } + + /* Destroy any existing backlog (shouldn't be any) */ + + flags = irqsave(); + uip_backlogdestroy(conn); + + /* Now install the backlog tear-off in the connection. NOTE that bls may + * actually be NULL if nblg is <= 0; In that case, we are disabling backlog + * support. Since interrupts are disabled, destroying the old backlog and + * replace it with the new is an atomic operation + */ + + conn->backlog = bls; + irqrestore(flags); + return OK; +} + +/**************************************************************************** + * Function: uip_backlogdestroy + * + * Description: + * (1) Called from uip_tcpfree() whenever a connection is freed. + * (2) Called from uip_backlogcreate() to destroy any old backlog + * + * NOTE: This function may re-enter uip_tcpfree when a connection that + * is freed that has pending connections. + * + * Assumptions: + * The caller has disabled interrupts so that there can be no conflict + * with ongoing, interrupt driven activity + * + ****************************************************************************/ + +int uip_backlogdestroy(FAR struct uip_conn *conn) +{ + FAR struct uip_backlog_s *blg; + FAR struct uip_blcontainer_s *blc; + FAR struct uip_conn *blconn; + +#ifdef CONFIG_DEBUG + if (!conn) + { + return -EINVAL; + } +#endif + + /* Make sure that the connection has a backlog to be destroyed */ + + if (conn->backlog) + { + /* Remove the backlog structure reference from the connection */ + + blg = conn->backlog; + conn->backlog = NULL; + + /* Handle any pending connections in the backlog */ + + while ((blc = (FAR struct uip_blcontainer_s*)dq_remfirst(&blg->bl_pending)) != NULL) + { + blconn = blc->bc_conn; + if (blconn) + { + /* REVISIT -- such connections really need to be gracefully closed */ + + blconn->blparent = NULL; + blconn->backlog = NULL; + uip_tcpfree(blconn); + } + } + + /* Then free the entire backlog structure */ + + free(blg); + } + + return OK; +} + +/**************************************************************************** + * Function: uip_backlogadd + * + * Description: + * Called uip_listen when a new connection is made with a listener socket + * but when there is not accept() in place to receive the connection. This + * function adds the new connection to the backlog. + * + * Assumptions: + * Called from the interrupt level with interrupts disabled + * + ****************************************************************************/ + +int uip_backlogadd(FAR struct uip_conn *conn, FAR struct uip_conn *blconn) +{ + FAR struct uip_backlog_s *bls; + FAR struct uip_blcontainer_s *blc; + int ret = -EINVAL; + +#ifdef CONFIG_DEBUG + if (!conn) + { + return -EINVAL; + } +#endif + + bls = conn->backlog; + if (conn->backlog && blconn) + { + /* Allocate a container for the connection from the free list */ + + blc = (FAR struct uip_blcontainer_s *)dq_remfirst(&bls->bl_free); + if (!blc) + { + ret = -ENOMEM; + } + else + { + /* Save the connection reference in the container and put the + * container at the end of the pending connection list (FIFO). + */ + + blc->bc_conn = blconn; + dq_addlast(&blc->bc_node, &bls->bl_pending); + ret = OK; + } + } + return ret; +} + +/**************************************************************************** + * Function: uip_backlogremove + * + * Description: + * Called from accept(). Before waiting for a new connection, accept will + * call this API to see if there are pending connections in the backlog. + * + * Assumptions: + * Called from normal user code, but with interrupts disabled, + * + ****************************************************************************/ + +struct uip_conn *uip_backlogremove(FAR struct uip_conn *conn) +{ + FAR struct uip_backlog_s *bls; + FAR struct uip_blcontainer_s *blc; + FAR struct uip_conn *blconn = NULL; + +#ifdef CONFIG_DEBUG + if (!conn) + { + return NULL; + } +#endif + bls = conn->backlog; + if (bls && blconn) + { + /* Remove the a container at the head of the pending connection list + * (FIFO) + */ + + blc = (FAR struct uip_blcontainer_s *)dq_remfirst(&bls->bl_pending); + if (blc) + { + /* Extract the connection reference from the container and put + * container in the free list + */ + + blconn = blc->bc_conn; + blc->bc_conn = NULL; + dq_addlast(&blc->bc_node, &bls->bl_free); + } + } + return blconn; +} + +/**************************************************************************** + * Function: uip_backlogdelete + * + * Description: + * Called from uip_tcpfree() when a connection is freed that this also + * retained in the pending connectino list of a listener. We simply need + * to remove the defunct connecton from the list. + * + * Assumptions: + * Called from the interrupt level with interrupts disabled + * + ****************************************************************************/ + +int uip_backlogdelete(FAR struct uip_conn *conn, FAR struct uip_conn *blconn) +{ + FAR struct uip_backlog_s *bls; + FAR struct uip_blcontainer_s *blc; + +#ifdef CONFIG_DEBUG + if (!conn) + { + return NULL; + } +#endif + bls = conn->backlog; + if (bls) + { + /* Find the container hold the connection */ + + for (blc = (FAR struct uip_blcontainer_s *)dq_peek(&bls->bl_pending); + blc; + blc = (FAR struct uip_blcontainer_s *)dq_next(&blc->bc_node)) + { + if (blc->bc_conn == blconn) + { + /* Remove the a container from the list of pending connections */ + + dq_rem(&blc->bc_node, &bls->bl_pending); + return OK; + } + } + return -EINVAL; + } + return OK; +} + +#endif /* CONFIG_NET && CONFIG_NET_TCP && CONFIG_NET_TCPBACKLOG */ diff --git a/nuttx/net/uip/uip-tcpconn.c b/nuttx/net/uip/uip-tcpconn.c index 0f48a4607..e36520b05 100644 --- a/nuttx/net/uip/uip-tcpconn.c +++ b/nuttx/net/uip/uip-tcpconn.c @@ -316,6 +316,24 @@ void uip_tcpfree(struct uip_conn *conn) } #endif + /* Remove any backlog attached to this connection */ + +#ifdef CONFIG_NET_TCPBACKLOG + if (conn->backlog) + { + uip_backlogdestroy(conn); + } + + /* If this connection is, itself, backlogged, then remove it from the + * parent connection's backlog list. + */ + + if (conn->blparent) + { + uip_backlogdelete(conn->blparent, conn); + } +#endif + /* Mark the connection available and put it into the free list */ conn->tcpstateflags = UIP_CLOSED; diff --git a/nuttx/net/uip/uip-tcpinput.c b/nuttx/net/uip/uip-tcpinput.c index 5a7b5b923..5d220aeb5 100644 --- a/nuttx/net/uip/uip-tcpinput.c +++ b/nuttx/net/uip/uip-tcpinput.c @@ -165,7 +165,7 @@ void uip_tcpinput(struct uip_driver_s *dev) * least queue it it for acceptance). */ - if (uip_accept(conn, tmp16) != OK) + if (uip_accept(dev, conn, tmp16) != OK) { /* No, then we have to give the connection back */ diff --git a/nuttx/net/uip/uip-tcpreadahead.c b/nuttx/net/uip/uip-tcpreadahead.c index abadb4f50..c00ea7b38 100644 --- a/nuttx/net/uip/uip-tcpreadahead.c +++ b/nuttx/net/uip/uip-tcpreadahead.c @@ -1,7 +1,7 @@ /**************************************************************************** * net/uip/uip-tcpreadahead.c * - * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * diff --git a/nuttx/net/uip/uip-tcptimer.c b/nuttx/net/uip/uip-tcptimer.c index e0da04ead..aadd2b5ea 100644 --- a/nuttx/net/uip/uip-tcptimer.c +++ b/nuttx/net/uip/uip-tcptimer.c @@ -2,7 +2,7 @@ * net/uip/uip-tcptimer.c * Poll for the availability of TCP TX data * - * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <spudmonkey@racsa.co.cr> * * Adapted for NuttX from logic in uIP which also has a BSD-like license: |