102 lines
2.8 KiB
Plaintext
102 lines
2.8 KiB
Plaintext
#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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menu "ICMP Networking Support"
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config NET_ICMP
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bool "Enable ICMP networking"
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default NET_IPv4
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---help---
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Enable minimal ICMP support. Includes built-in support
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for sending replies to received ECHO (ping) requests.
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config NET_ICMP_NO_STACK
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bool "Disable ICMP stack"
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default n
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select NET_ICMP
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---help---
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Build without ICMP stack even if ICMP networking support enabled.
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if NET_ICMP && !NET_ICMP_NO_STACK
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config NET_ICMP_PMTU_ENTRIES
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int "Path MTU Discovery (PMTUD) ICMP pmtu entry number"
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default 0
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---help---
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The number of the ICMP pmtu entry
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config NET_ICMP_PMTU_TIMEOUT
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int "Path MTU Discovery (PMTUD) ICMP pmtu entry timeout (Time Unit:minute)"
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default 10
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depends on NET_ICMP_PMTU_ENTRIES != 0
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---help---
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The timout of the ICMP pmtu entry
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config NET_ICMP_SOCKET
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bool "IPPROTO_ICMP socket support"
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default n
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select MM_IOB
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---help---
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Enable support for IPPROTO_ICMP sockets. These sockets are needed
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for application level support for sending ECHO (ping) requests and
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receiving associated ECHO replies.
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config NET_ICMP_CHECKSUMS
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bool "ICMP checksums"
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default y
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---help---
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Enable/disable ICMP checksum support.
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if NET_ICMP_SOCKET
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config NET_ICMP_PREALLOC_CONNS
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int "Preallocated ICMP packet sockets"
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default 4
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---help---
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Number of ICMP 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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config NET_ICMP_ALLOC_CONNS
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int "Dynamic ICMP connections allocation"
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default 0
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---help---
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Dynamic memory allocations for ICMP.
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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_ICMP_MAX_CONNS
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int "Maximum number of ICMP connections"
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default 0
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depends on NET_ICMP_ALLOC_CONNS > 0
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---help---
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If dynamic connections allocation is selected (NET_ICMP_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_ICMP_NPOLLWAITERS
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int "Number of ICMP poll waiters"
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default 1
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endif # NET_ICMP_SOCKET
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endif # NET_ICMP && !NET_ICMP_NO_STACK
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endmenu # ICMP Networking Support
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