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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 15:35:18 +0000
commitb750101eb236130cf056c675997decbac904cc49 (patch)
treea5df1a06754bdd014cb975c051c83b01c9a97532 /src/network/networkd-lldp-tx.c
parentInitial commit. (diff)
downloadsystemd-b750101eb236130cf056c675997decbac904cc49.tar.xz
systemd-b750101eb236130cf056c675997decbac904cc49.zip
Adding upstream version 252.22.upstream/252.22
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/network/networkd-lldp-tx.c')
-rw-r--r--src/network/networkd-lldp-tx.c137
1 files changed, 137 insertions, 0 deletions
diff --git a/src/network/networkd-lldp-tx.c b/src/network/networkd-lldp-tx.c
new file mode 100644
index 0000000..fc9196f
--- /dev/null
+++ b/src/network/networkd-lldp-tx.c
@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <net/if.h>
+#include <net/if_arp.h>
+
+#include "sd-lldp-tx.h"
+
+#include "networkd-link.h"
+#include "networkd-lldp-tx.h"
+#include "networkd-manager.h"
+#include "parse-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "strv.h"
+
+static bool link_lldp_tx_enabled(Link *link) {
+ assert(link);
+
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (link->iftype != ARPHRD_ETHER)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ if (link->kind && STR_IN_SET(link->kind, "bridge", "bond"))
+ return false;
+
+ return link->network->lldp_multicast_mode >= 0 &&
+ link->network->lldp_multicast_mode < _SD_LLDP_MULTICAST_MODE_MAX;
+}
+
+int link_lldp_tx_configure(Link *link) {
+ int r;
+
+ assert(link);
+
+ if (!link_lldp_tx_enabled(link))
+ return 0;
+
+ if (link->lldp_tx)
+ return -EBUSY;
+
+ r = sd_lldp_tx_new(&link->lldp_tx);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_tx_attach_event(link->lldp_tx, link->manager->event, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_tx_set_ifindex(link->lldp_tx, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_tx_set_hwaddr(link->lldp_tx, &link->hw_addr.ether);
+ if (r < 0)
+ return r;
+
+ assert(link->network);
+
+ r = sd_lldp_tx_set_multicast_mode(link->lldp_tx, link->network->lldp_multicast_mode);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_tx_set_capabilities(link->lldp_tx,
+ SD_LLDP_SYSTEM_CAPABILITIES_STATION |
+ SD_LLDP_SYSTEM_CAPABILITIES_BRIDGE |
+ SD_LLDP_SYSTEM_CAPABILITIES_ROUTER,
+ (link->network->ip_forward != ADDRESS_FAMILY_NO) ?
+ SD_LLDP_SYSTEM_CAPABILITIES_ROUTER :
+ SD_LLDP_SYSTEM_CAPABILITIES_STATION);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_tx_set_port_description(link->lldp_tx, link->network->description);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_tx_set_mud_url(link->lldp_tx, link->network->lldp_mudurl);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+static const char * const lldp_multicast_mode_table[_SD_LLDP_MULTICAST_MODE_MAX] = {
+ [SD_LLDP_MULTICAST_MODE_NEAREST_BRIDGE] = "nearest-bridge",
+ [SD_LLDP_MULTICAST_MODE_NON_TPMR_BRIDGE] = "non-tpmr-bridge",
+ [SD_LLDP_MULTICAST_MODE_CUSTOMER_BRIDGE] = "customer-bridge",
+};
+
+DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(lldp_multicast_mode, sd_lldp_multicast_mode_t);
+
+int config_parse_lldp_multicast_mode(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ sd_lldp_multicast_mode_t m, *mode = ASSERT_PTR(data);
+ int r;
+
+ assert(filename);
+ assert(section);
+ assert(lvalue);
+ assert(rvalue);
+
+ if (isempty(rvalue)) {
+ *mode = _SD_LLDP_MULTICAST_MODE_INVALID;
+ return 0;
+ }
+
+ r = parse_boolean(rvalue);
+ if (r >= 0) {
+ *mode = r == 0 ? _SD_LLDP_MULTICAST_MODE_INVALID : SD_LLDP_MULTICAST_MODE_NEAREST_BRIDGE;
+ return 0;
+ }
+
+ m = lldp_multicast_mode_from_string(rvalue);
+ if (m < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, m,
+ "Failed to parse %s=, ignoring assignment: %s", lvalue, rvalue);
+ return 0;
+ }
+
+ *mode = m;
+ return 0;
+}