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be43888aa5
CONFIG_NETUTILS_MDNS_STACKSIZE defaulted to DEFAULT_TASK_STACKSIZE, which resolves to as little as 2KiB on some targets. The bundled mjansson responder uses a deeper stack than that (DNS record parsing with name decompression, plus the send/receive buffers) and overflows on startup, taking the board down with a hardfault before it answers a single query. Default to 8KiB, the value that reliably runs the responder, and correct the help text, which previously claimed a 4KiB default that did not match DEFAULT_TASK_STACKSIZE. Assisted-by: Claude (Anthropic Claude Code) Signed-off-by: Ricard Rosson <ricard@groundbits.com>
81 lines
2.4 KiB
Text
81 lines
2.4 KiB
Text
config LIB_MDNS
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bool "MDNS library"
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default n
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---help---
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Enable the mDNS library. This allows calls to the library to be made.
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This external library is "unlicensed" using the methodology from
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http://unlicense.org
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You should be sure that this license is acceptable for your usage.
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By default, the "built-in" demo is added as an application that can
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be run from nsh <mdns>.
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This is also needed for the optional daemon that allows the demo
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app's mDNS functionality to be started and stopped from user
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applications. There is an associated example app
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(CONFIG_EXAMPLES_MDNSD) to allow the daemon to be tried from nsh.
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Ultimately, this should be used simply as a library, and neither the
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demo app nor the daemon utilised. If just built as a library,the
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relevant header file <mdns.h> is copied to the usual netutils
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include location and can be utilised be including it:
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#include <netutils/mdns.h>
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if LIB_MDNS
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config NETUTILS_MDNS
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tristate "Enable mdns built-in demo app"
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default n
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---help---
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Enable the author's original built-in MDNS demo app. This allows the
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functionality of the library to be demonstrated. Information on using
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it is available from the original git repo for this external library:
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https://github.com/mjansson/mdns
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if NETUTILS_MDNS
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config NETUTILS_MDNS_PROGNAME
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string "mDNS program name"
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default "mdns"
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---help---
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This is the name of the program that will be used when the NSH ELF
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program is installed.
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config NETUTILS_MDNS_PRIORITY
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int "mDNS task priority"
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default 100
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config NETUTILS_MDNS_STACKSIZE
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int "mDNS stack size"
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default 8192
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---help---
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Stack size for the mDNS responder task. 8KiB is adequate for
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typical networks; increase it if many network devices send
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queries.
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config NETUTILS_MDNS_VERBOSE
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bool "Enable verbose printf output from built-in mdns demo"
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default y
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endif
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config NETUTILS_MDNS_DAEMON
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tristate "Wrap mdns demo app as a daemon, which can be started/stopped"
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default n
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depends on NETUTILS_MDNS
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---help---
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This option wraps the mdns demo app as a daemon, so requires
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CONFIG_NETUTILS_MDNS to be selected.
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There is also an example app (CONFIG_EXAMPLES_MDNSD) to allow the
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mdns daemon to be started/stopped via the NuttX shell.
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config NETUTILS_MDNS_DAEMON_STOP_SIGNAL
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int "Signal used to stop the MDNSD daemon"
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default 22
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depends on NETUTILS_MDNS_DAEMON
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endif #NETUTILS_MDNS
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