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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-10 20:49:52 +0000 |
commit | 55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch) | |
tree | 33f869f55a1b149e9b7c2b7e201867ca5dd52992 /src/network/networkd-dhcp-server-bus.c | |
parent | Initial commit. (diff) | |
download | systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip |
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/network/networkd-dhcp-server-bus.c')
-rw-r--r-- | src/network/networkd-dhcp-server-bus.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/network/networkd-dhcp-server-bus.c b/src/network/networkd-dhcp-server-bus.c new file mode 100644 index 0000000..e3397c3 --- /dev/null +++ b/src/network/networkd-dhcp-server-bus.c @@ -0,0 +1,117 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#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 = ASSERT_PTR(userdata); + sd_dhcp_server *s; + DHCPLease *lease; + int r; + + assert(reply); + + 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); + + if (sd_dhcp_server_is_in_relay_mode(s)) + return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Link %s has DHCP relay agent active.", l->ifname); + + r = sd_bus_message_open_container(reply, 'a', "(uayayayayt)"); + if (r < 0) + return r; + + HASHMAP_FOREACH(lease, s->bound_leases_by_client_id) { + 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); + + if (sd_bus_is_ready(link->manager->bus) <= 0) + return 0; + + 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 = ASSERT_PTR(data); + + if (event & SD_DHCP_SERVER_EVENT_LEASE_CHANGED) + (void) dhcp_server_emit_changed(l, "Leases", NULL); +} + +static 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 +}; + +const BusObjectImplementation dhcp_server_object = { + "/org/freedesktop/network1/link", + "org.freedesktop.network1.DHCPServer", + .fallback_vtables = BUS_FALLBACK_VTABLES({dhcp_server_vtable, link_object_find}), + .node_enumerator = link_node_enumerator, +}; |