diff options
| -rw-r--r-- | doc/guix.texi | 10 | ||||
| -rw-r--r-- | gnu/services/base.scm | 6 | ||||
| -rw-r--r-- | gnu/services/networking.scm | 205 |
3 files changed, 145 insertions, 76 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 4ba101094a..fb0bbc04bb 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -8786,11 +8786,21 @@ Return a service that runs @var{dhcp}, a Dynamic Host Configuration Protocol (DHCP) client, on all the non-loopback network interfaces. @end deffn +@defvr {Scheme Variable} static-networking-service-type +This is the type for statically-configured network interfaces. +@c TODO Document <static-networking> data structures. +@end defvr + @deffn {Scheme Procedure} static-networking-service @var{interface} @var{ip} @ [#:netmask #f] [#:gateway #f] [#:name-servers @code{'()}] Return a service that starts @var{interface} with address @var{ip}. If @var{netmask} is true, use it as the network mask. If @var{gateway} is true, it must be a string specifying the default network gateway. + +This procedure can be called several times, one for each network +interface of interest. Behind the scenes what it does is extend +@code{static-networking-service-type} with additional network interfaces +to handle. @end deffn @cindex wicd diff --git a/gnu/services/base.scm b/gnu/services/base.scm index ecabf78429..d9f3a1445e 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -1546,8 +1546,10 @@ This service is not part of @var{%base-services}." (mingetty-service (mingetty-configuration (tty "tty6"))) - (static-networking-service "lo" "127.0.0.1" - #:provision '(loopback)) + (service static-networking-service-type + (list (static-networking (interface "lo") + (ip "127.0.0.1") + (provision '(loopback))))) (syslog-service) (urandom-seed-service) (guix-service) diff --git a/gnu/services/networking.scm b/gnu/services/networking.scm index f7412ff29e..766d979f3e 100644 --- a/gnu/services/networking.scm +++ b/gnu/services/networking.scm @@ -42,6 +42,13 @@ #:use-module (ice-9 match) #:export (%facebook-host-aliases static-networking + + static-networking? + static-networking-interface + static-networking-ip + static-networking-netmask + static-networking-gateway + static-networking-service static-networking-service-type dhcp-client-service @@ -121,88 +128,138 @@ fe80::1%lo0 apps.facebook.com\n") (ip static-networking-ip) (netmask static-networking-netmask (default #f)) - (gateway static-networking-gateway) - (provision static-networking-provision) - (name-servers static-networking-name-servers)) + (gateway static-networking-gateway ;FIXME: doesn't belong here + (default #f)) + (provision static-networking-provision + (default #f)) + (name-servers static-networking-name-servers ;FIXME: doesn't belong here + (default '()))) + +(define static-networking-shepherd-service + (match-lambda + (($ <static-networking> interface ip netmask gateway provision + name-servers) + (let ((loopback? (and provision (memq 'loopback provision)))) + (shepherd-service + + ;; Unless we're providing the loopback interface, wait for udev to be up + ;; and running so that INTERFACE is actually usable. + (requirement (if loopback? '() '(udev))) + + (documentation + "Bring up the networking interface using a static IP address.") + (provision (or provision + (list (symbol-append 'networking- + (string->symbol interface))))) + + (start #~(lambda _ + ;; Return #t if successfully started. + (let* ((addr (inet-pton AF_INET #$ip)) + (sockaddr (make-socket-address AF_INET addr 0)) + (mask (and #$netmask + (inet-pton AF_INET #$netmask))) + (maskaddr (and mask + (make-socket-address AF_INET + mask 0))) + (gateway (and #$gateway + (inet-pton AF_INET #$gateway))) + (gatewayaddr (and gateway + (make-socket-address AF_INET + gateway 0)))) + (configure-network-interface #$interface sockaddr + (logior IFF_UP + #$(if loopback? + #~IFF_LOOPBACK + 0)) + #:netmask maskaddr) + (when gateway + (let ((sock (socket AF_INET SOCK_DGRAM 0))) + (add-network-route/gateway sock gatewayaddr) + (close-port sock)))))) + (stop #~(lambda _ + ;; Return #f is successfully stopped. + (let ((sock (socket AF_INET SOCK_STREAM 0))) + (when #$gateway + (delete-network-route sock + (make-socket-address + AF_INET INADDR_ANY 0))) + (set-network-interface-flags sock #$interface 0) + (close-port sock) + #f))) + (respawn? #f)))))) + +(define (static-networking-etc-files interfaces) + "Return a /etc/resolv.conf entry for INTERFACES or the empty list." + (match (delete-duplicates + (append-map static-networking-name-servers + interfaces)) + (() + '()) + ((name-servers ...) + (let ((content (string-join + (map (cut string-append "nameserver " <>) + name-servers) + "\n" 'suffix))) + `(("resolv.conf" + ,(plain-file "resolv.conf" + (string-append "\ +# Generated by 'static-networking-service'.\n" + content)))))))) + +(define (static-networking-shepherd-services interfaces) + "Return the list of Shepherd services to bring up INTERFACES, a list of +<static-networking> objects." + (define (loopback? service) + (memq 'loopback (shepherd-service-provision service))) + + (let ((services (map static-networking-shepherd-service interfaces))) + (match (remove loopback? services) + (() + ;; There's no interface other than 'loopback', so we assume that the + ;; 'networking' service will be provided by dhclient or similar. + services) + ((non-loopback ...) + ;; Assume we're providing all the interfaces, and thus, provide a + ;; 'networking' service. + (cons (shepherd-service + (provision '(networking)) + (requirement (append-map shepherd-service-provision + services)) + (start #~(const #t)) + (stop #~(const #f)) + (documentation "Bring up all the networking interfaces.")) + services))))) (define static-networking-service-type - (shepherd-service-type - 'static-networking - (match-lambda - (($ <static-networking> interface ip netmask gateway provision - name-servers) - (let ((loopback? (memq 'loopback provision))) - (shepherd-service - - ;; Unless we're providing the loopback interface, wait for udev to be up - ;; and running so that INTERFACE is actually usable. - (requirement (if loopback? '() '(udev))) - - (documentation - "Bring up the networking interface using a static IP address.") - (provision provision) - (start #~(lambda _ - ;; Return #t if successfully started. - (let* ((addr (inet-pton AF_INET #$ip)) - (sockaddr (make-socket-address AF_INET addr 0)) - (mask (and #$netmask - (inet-pton AF_INET #$netmask))) - (maskaddr (and mask - (make-socket-address AF_INET - mask 0))) - (gateway (and #$gateway - (inet-pton AF_INET #$gateway))) - (gatewayaddr (and gateway - (make-socket-address AF_INET - gateway 0)))) - (configure-network-interface #$interface sockaddr - (logior IFF_UP - #$(if loopback? - #~IFF_LOOPBACK - 0)) - #:netmask maskaddr) - (when gateway - (let ((sock (socket AF_INET SOCK_DGRAM 0))) - (add-network-route/gateway sock gatewayaddr) - (close-port sock)))) - - #$(if (pair? name-servers) - #~(call-with-output-file "/etc/resolv.conf" - (lambda (port) - (display - "# Generated by 'static-networking-service'.\n" - port) - (for-each (lambda (server) - (format port "nameserver ~a~%" - server)) - '#$name-servers) - #t)) - #t))) - (stop #~(lambda _ - ;; Return #f is successfully stopped. - (let ((sock (socket AF_INET SOCK_STREAM 0))) - (when #$gateway - (delete-network-route sock - (make-socket-address - AF_INET INADDR_ANY 0))) - (set-network-interface-flags sock #$interface 0) - (close-port sock) - #f))) - (respawn? #f))))))) + ;; The service type for statically-defined network interfaces. + (service-type (name 'static-networking) + (extensions + (list + (service-extension shepherd-root-service-type + static-networking-shepherd-services) + (service-extension etc-service-type + static-networking-etc-files))) + (compose concatenate) + (extend append))) (define* (static-networking-service interface ip #:key - netmask gateway - (provision '(networking)) + netmask gateway provision (name-servers '())) "Return a service that starts @var{interface} with address @var{ip}. If @var{netmask} is true, use it as the network mask. If @var{gateway} is true, -it must be a string specifying the default network gateway." - (service static-networking-service-type - (static-networking (interface interface) (ip ip) - (netmask netmask) (gateway gateway) - (provision provision) - (name-servers name-servers)))) +it must be a string specifying the default network gateway. + +This procedure can be called several times, one for each network +interface of interest. Behind the scenes what it does is extend +@code{static-networking-service-type} with additional network interfaces +to handle." + (simple-service 'static-network-interface + static-networking-service-type + (list (static-networking (interface interface) (ip ip) + (netmask netmask) (gateway gateway) + (provision provision) + (name-servers name-servers))))) (define dhcp-client-service-type (shepherd-service-type |