From 34d1c0a03b51fdaef26a3bc630ab096da740e1d6 Mon Sep 17 00:00:00 2001 From: Danny Milosavljevic Date: Sun, 27 Sep 2020 21:06:30 +0200 Subject: services: dnsmasq: Add TFTP configuration fields. * gnu/services/dns.scm (): Add TFTP configuration fields. (dnsmasq-shepherd-service): Use them. * doc/guix.texi (DNS Services): Document them. --- doc/guix.texi | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'doc') diff --git a/doc/guix.texi b/doc/guix.texi index eed7bbec6e..2b1ffbc55f 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -23363,6 +23363,60 @@ disables caching. @item @code{negative-cache?} (default: @code{#t}) When false, disable negative caching. +@item @code{tftp-enable?} (default: @code{#f}) +Whether to enable the built-in TFTP server. + +@item @code{tftp-no-fail?} (default: @code{#f}) +If true, does not fail dnsmasq if the TFTP server could not start up. + +@item @code{tftp-single-port?} (default: @code{#f}) +Whether to use only one single port for TFTP. + +@item @code{tftp-secure?} (default: @code{#f}) +If true, only files owned by the user running the dnsmasq process are accessible. + +If dnsmasq is being run as root, different rules apply: +@code{tftp-secure?} has no effect, but only files which have the +world-readable bit set are accessible. + +@item @code{tftp-max} (default: @code{#f}) +If set, sets the maximal number of concurrent connections allowed. + +@item @code{tftp-mtu} (default: @code{#f}) +If set, sets the MTU for TFTP packets to that value. + +@item @code{tftp-no-blocksize?} (default: @code{#f}) +If true, stops the TFTP server from negotiating the blocksize with a client. + +@item @code{tftp-lowercase?} (default: @code{#f}) +Whether to convert all filenames in TFTP requests to lowercase. + +@item @code{tftp-port-range} (default: @code{#f}) +If set, fixes the dynamical ports (one per client) to the given range +(@code{","}). + +@item @code{tftp-root} (default: @code{/var/empty,lo}) +Look for files to transfer using TFTP relative to the given directory. +When this is set, TFTP paths which include ".." are rejected, to stop clients +getting outside the specified root. Absolute paths (starting with /) are +allowed, but they must be within the tftp-root. If the optional interface +argument is given, the directory is only used for TFTP requests via that +interface. + +@item @code{tftp-unique-root} (default: @code{#f}) +If set, add the IP or hardware address of the TFTP client as a path component +on the end of the TFTP-root. Only valid if a TFTP root is set and the +directory exists. Defaults to adding IP address (in standard dotted-quad +format). + +For instance, if --tftp-root is "/tftp" and client 1.2.3.4 requests file +"myfile" then the effective path will be "/tftp/1.2.3.4/myfile" if +/tftp/1.2.3.4 exists or /tftp/myfile otherwise. When "=mac" is specified +it will append the MAC address instead, using lowercase zero padded digits +separated by dashes, e.g.: 01-02-03-04-aa-bb Note that resolving MAC +addresses is only possible if the client is in the local network or obtained +a DHCP lease from dnsmasq. + @end table @end deftp -- cgit v1.2.3