diff --git a/src/network/meson.build b/src/network/meson.build index 9cd5796f09..9d5cdfa516 100644 --- a/src/network/meson.build +++ b/src/network/meson.build @@ -61,6 +61,8 @@ sources = files(''' networkd-conf.h networkd-dhcp-common.c networkd-dhcp-common.h + networkd-dhcp-server-bus.c + networkd-dhcp-server-bus.h networkd-dhcp-server.c networkd-dhcp-server.h networkd-dhcp4.c diff --git a/src/network/networkd-dhcp-server-bus.c b/src/network/networkd-dhcp-server-bus.c new file mode 100644 index 0000000000..1731d0bea5 --- /dev/null +++ b/src/network/networkd-dhcp-server-bus.c @@ -0,0 +1,111 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ + +#include "sd-dhcp-server.h" + +#include "alloc-util.h" +#include "bus-common-errors.h" +#include "bus-util.h" +#include "dhcp-server-internal.h" +#include "networkd-dhcp-server-bus.h" +#include "networkd-link-bus.h" +#include "networkd-manager.h" +#include "strv.h" + +static int property_get_leases( + sd_bus *bus, + const char *path, + const char *interface, + const char *property, + sd_bus_message *reply, + void *userdata, + sd_bus_error *error) { + Link *l = userdata; + sd_dhcp_server *s; + DHCPLease *lease; + Iterator i; + int r; + + assert(reply); + assert(l); + + s = l->dhcp_server; + if (!s) + return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Link %s has no DHCP server.", l->ifname); + + r = sd_bus_message_open_container(reply, 'a', "(uayayayayt)"); + if (r < 0) + return r; + + HASHMAP_FOREACH(lease, s->leases_by_client_id, i) { + r = sd_bus_message_open_container(reply, 'r', "uayayayayt"); + if (r < 0) + return r; + + r = sd_bus_message_append(reply, "u", (uint32_t)AF_INET); + if (r < 0) + return r; + + r = sd_bus_message_append_array(reply, 'y', lease->client_id.data, lease->client_id.length); + if (r < 0) + return r; + + r = sd_bus_message_append_array(reply, 'y', &lease->address, sizeof(lease->address)); + if (r < 0) + return r; + + r = sd_bus_message_append_array(reply, 'y', &lease->gateway, sizeof(lease->gateway)); + if (r < 0) + return r; + + r = sd_bus_message_append_array(reply, 'y', &lease->chaddr, sizeof(lease->chaddr)); + if (r < 0) + return r; + + r = sd_bus_message_append_basic(reply, 't', &lease->expiration); + if (r < 0) + return r; + + r = sd_bus_message_close_container(reply); + if (r < 0) + return r; + } + + return sd_bus_message_close_container(reply); +} + +static int dhcp_server_emit_changed(Link *link, const char *property, ...) { + _cleanup_free_ char *path = NULL; + char **l; + + assert(link); + + path = link_bus_path(link); + if (!path) + return log_oom(); + + l = strv_from_stdarg_alloca(property); + + return sd_bus_emit_properties_changed_strv( + link->manager->bus, + path, + "org.freedesktop.network1.DHCPServer", + l); +} + +void dhcp_server_callback(sd_dhcp_server *s, uint64_t event, void *data) { + Link *l = data; + + assert(l); + + if (event & SD_DHCP_SERVER_EVENT_LEASE_CHANGED) + (void) dhcp_server_emit_changed(l, "Leases", NULL); +} + + +const sd_bus_vtable dhcp_server_vtable[] = { + SD_BUS_VTABLE_START(0), + + SD_BUS_PROPERTY("Leases", "a(uayayayayt)", property_get_leases, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), + + SD_BUS_VTABLE_END +}; diff --git a/src/network/networkd-dhcp-server-bus.h b/src/network/networkd-dhcp-server-bus.h new file mode 100644 index 0000000000..49164ff0bb --- /dev/null +++ b/src/network/networkd-dhcp-server-bus.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +#pragma once + +#include "sd-bus.h" +#include "networkd-link.h" + +extern const sd_bus_vtable dhcp_server_vtable[]; + +void dhcp_server_callback(sd_dhcp_server *server, uint64_t event, void *data);