e4652bd3dc
fs: Add truncate() support for userfs
fs/unionfs: Add truncate() support to the unionfs
fs/tmpfs: Add ftruncate() support to tmpfs
syscall/: Add system call support for ftruncate()
net/route: Adding ftruncate() support eliminates an issue in file-based routing table management.
fs: Add basic framework to support truncate() and ftruncate(). The infrastructure is complete. Now, however, the actual implementation of ftruncate() will have to be done for each file system.
142 lines
3.9 KiB
Plaintext
142 lines
3.9 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 "Routing Table Configuration"
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config NET_ROUTE
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bool "Routing table support"
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default n
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depends on NET_IPv4 || NET_IPv6
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---help---
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Build in support for a routing table. See include/net/route.h
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if NET_ROUTE
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choice
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prompt "IPv4 routing table"
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default ROUTE_IPv4_RAMROUTE
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depends on NET_IPv4
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config ROUTE_IPv4_RAMROUTE
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bool "In-memory"
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---help---
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Select to used a IPv4 routing table RAM.
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config ROUTE_IPv4_ROMROUTE
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bool "Read-only"
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---help---
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Select to used a fixed read-only IPv4 routing table in FLASH or ROM.
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In this case, the board-specific logic must provide a routing table
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of the form of a simple array:
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FAR const struct net_route_ipv4_s g_ipv4_routes[];
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const unsigned int g_ipv4_nroutes;
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NOTE: The read-only variable g_ipv4_nroutes must be set to the
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actual number of valid entries in the array.
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config ROUTE_IPv4_FILEROUTE
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bool "File"
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---help---
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Select to used a IPv4 routing table in a file in a mounted file system.
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endchoice # IPv4 routing table
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config ROUTE_MAX_IPv4_RAMROUTES
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int "Preallocated IPv4 routing table entries"
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default 4
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depends on ROUTE_IPv4_RAMROUTE
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---help---
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The number of preallocated of the IPv4 routing table entries. This
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eliminates dynamica memory allocations, but limits the maximum size
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of the in-memory routing table to this number.
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config ROUTE_IPv4_CACHEROUTE
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bool "In-memory IPv4 cache"
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default n
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depends on ROUTE_IPv4_FILEROUTE
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---help---
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Accessing a routing table on a file system before each packet is sent
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can harm performance. This option will cache a few of the most
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frequently used routing table entries in memory to reduce performance
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issues.
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config ROUTE_MAX_IPv4_CACHEROUTES
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int "IPv4 cache size"
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default 4
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depends on ROUTE_IPv4_CACHEROUTE
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---help---
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This determines the maxium number of routes that can be cached in
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memory.
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choice
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prompt "IPv6 routing table"
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default ROUTE_IPv6_RAMROUTE
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depends on NET_IPv6
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config ROUTE_IPv6_RAMROUTE
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bool "In-memory"
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---help---
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Select to use a IPv6 routing table RAM.
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config ROUTE_IPv6_ROMROUTE
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bool "Read-only"
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---help---
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Select to use a fixed read-only IPv6 routing table in FLASH or ROM.
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In this case, the board-specific logic must provide a routing table
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of the form of simply array:
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FAR const struct net_route_ipv6_s g_ipv6_routes[];
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const unsigned int g_ipv6_nroutes;
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NOTE: The read-only variable g_ipv6_nroutes must be set to the
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actual number of valid entries in the array.
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config ROUTE_IPv6_FILEROUTE
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bool "File"
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---help---
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Select to use a IPv6 routing table in a file in a mounted file system.
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endchoice # IPv6 routing table
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config ROUTE_MAX_IPv6_RAMROUTES
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int "Preallocated IPv6 routing table entries"
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default 4
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depends on ROUTE_IPv6_RAMROUTE
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---help---
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The number of preallocated of the IPv6 routing table entries. This
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eliminates dynamica memory allocations, but limits the maximum size
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of the in-memory routing table to this number.
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config ROUTE_FILEDIR
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string "Routing table directory"
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default /tmp
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depends on ROUTE_IPv4_FILEROUTE || ROUTE_IPv6_FILEROUTE
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---help---
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Provides the full path to location in the file system where routing
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table will be accessed. This is a string and should not include
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any traling '/'.
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config ROUTE_IPv6_CACHEROUTE
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bool "In-memory IPv6 cache"
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default n
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depends on ROUTE_IPv6_FILEROUTE
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---help---
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Accessing a routing table on a file system before each packet is sent
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can harm performance. This option will cache a few of the most
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frequently used routing table entries in memory to reduce performance
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issues.
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config ROUTE_MAX_IPv6_CACHEROUTES
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int "IPv6 cache size"
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default 4
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depends on ROUTE_IPv6_CACHEROUTE
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---help---
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This determines the maxium number of routes that can be cached in
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memory.
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endif # NET_ROUTE
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endmenu # ARP Configuration
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