98 lines
2.9 KiB
Plaintext
98 lines
2.9 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see misc/tools/kconfig-language.txt.
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#
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menu "User-space networking stack API"
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config NET_USRSOCK
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bool "User-space networking stack API"
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default n
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depends on NET
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---help---
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Enable or disable user-space networking stack support.
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User-space networking stack API allows user-space daemon to
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provide TCP/IP stack implementation for NuttX network.
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Main use for this is to allow use and integration of
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HW-provided TCP/IP stacks for NuttX.
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For example, user-space daemon can translate /dev/usrsock API
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requests to HW TCP/IP API requests while rest of the user-space
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can access standard socket API, with socket descriptors that
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can be used with NuttX system calls.
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if NET_USRSOCK
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config NET_USRSOCK_PREALLOC_CONNS
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int "Preallocated usrsock connections"
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default 6
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---help---
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Number of usrsock connections (all tasks).
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This number of connections will be pre-allocated during system boot.
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If dynamic connections allocation is enabled, more connections may
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be allocated at a later time, as the system needs them. Else this
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will be the maximum number of connections available to the system
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at all times.
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Set to 0 to disable (and rely only on dynamic allocations).
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Note: Usrsock daemon can impose additional restrictions for
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maximum number of concurrent connections supported.
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config NET_USRSOCK_ALLOC_CONNS
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int "Dynamic usrsock connections allocation"
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default 0
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---help---
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Dynamic memory allocations for usrsock.
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When set to 0 all dynamic allocations are disabled.
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When set to 1 a new connection will be allocated every time,
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and it will be free'd when no longer needed.
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Setting this to 2 or more will allocate the connections in
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batches (with batch size equal to this config). When a
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connection is no longer needed, it will be returned to the
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free connections pool, and it will never be deallocated!
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config NET_USRSOCK_MAX_CONNS
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int "Maximum number of usrsock connections"
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default 0
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depends on NET_USRSOCK_ALLOC_CONNS > 0
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---help---
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If dynamic connections allocation is selected (NET_USRSOCK_ALLOC_CONNS > 0)
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this will limit the number of connections that can be allocated.
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This is useful in case the system is under very heavy load (or
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under attack), ensuring that the heap will not be exhausted.
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config NET_USRSOCK_NPOLLWAITERS
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int "Number of usrsock poll waiters"
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default 1
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config NET_USRSOCK_UDP
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bool "User-space daemon provides UDP sockets"
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default n
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select NET_UDP_NO_STACK
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config NET_USRSOCK_TCP
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bool "User-space daemon provides TCP sockets"
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default n
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select NET_TCP_NO_STACK
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config NET_USRSOCK_ICMP
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bool "User-space daemon provides ICMP sockets"
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select NET_ICMP_NO_STACK
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default n
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config NET_USRSOCK_ICMPv6
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bool "User-space daemon provides ICMPv6 sockets"
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select NET_ICMPv6_NO_STACK
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default n
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endif # NET_USRSOCK
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endmenu # User-space networking stack API
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