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-rw-r--r--src/libsystemd-network/lldp-tlv.c17
-rw-r--r--src/libsystemd-network/lldp-tlv.h4
-rw-r--r--src/libsystemd-network/test-lldp.c11
-rw-r--r--src/systemd/sd-lldp.h8
4 files changed, 40 insertions, 0 deletions
diff --git a/src/libsystemd-network/lldp-tlv.c b/src/libsystemd-network/lldp-tlv.c
index 24f2606f31..996c5b8881 100644
--- a/src/libsystemd-network/lldp-tlv.c
+++ b/src/libsystemd-network/lldp-tlv.c
@@ -539,3 +539,20 @@ int sd_lldp_packet_read_system_capability(tlv_packet *tlv, uint16_t *data) {
return r;
}
+
+int sd_lldp_packet_get_destination_type(tlv_packet *tlv, int *dest) {
+ assert_return(tlv, -EINVAL);
+ assert_return(dest, -EINVAL);
+
+ /* 802.1AB-2009, Table 7-1 */
+ if (!memcmp(&tlv->mac, LLDP_MAC_NEAREST_BRIDGE, ETH_ALEN))
+ *dest = SD_LLDP_DESTINATION_TYPE_NEAREST_BRIDGE;
+ else if (!memcmp(&tlv->mac, LLDP_MAC_NEAREST_NON_TPMR_BRIDGE, ETH_ALEN))
+ *dest = SD_LLDP_DESTINATION_TYPE_NEAREST_NON_TPMR_BRIDGE;
+ else if (!memcmp(&tlv->mac, LLDP_MAC_NEAREST_CUSTOMER_BRIDGE, ETH_ALEN))
+ *dest = SD_LLDP_DESTINATION_TYPE_NEAREST_CUSTOMER_BRIDGE;
+ else
+ return -EINVAL;
+
+ return 0;
+}
diff --git a/src/libsystemd-network/lldp-tlv.h b/src/libsystemd-network/lldp-tlv.h
index 19509d3589..5af06b40ca 100644
--- a/src/libsystemd-network/lldp-tlv.h
+++ b/src/libsystemd-network/lldp-tlv.h
@@ -43,6 +43,10 @@ struct tlv_section {
LIST_FIELDS(tlv_section, section);
};
+#define LLDP_MAC_NEAREST_BRIDGE (uint8_t[]) { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x0e }
+#define LLDP_MAC_NEAREST_NON_TPMR_BRIDGE (uint8_t[]) { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 }
+#define LLDP_MAC_NEAREST_CUSTOMER_BRIDGE (uint8_t[]) { 0x01, 0x80, 0xc2, 0x00, 0x00, 0x00 }
+
int tlv_section_new(tlv_section **ret);
void tlv_section_free(tlv_section *ret);
diff --git a/src/libsystemd-network/test-lldp.c b/src/libsystemd-network/test-lldp.c
index 26f64347a7..294198a0b5 100644
--- a/src/libsystemd-network/test-lldp.c
+++ b/src/libsystemd-network/test-lldp.c
@@ -202,6 +202,15 @@ static int lldp_parse_ttl_tlv(tlv_packet *m) {
return 0;
}
+static int lldp_get_destination_type(tlv_packet *m) {
+ int dest;
+
+ assert_se(sd_lldp_packet_get_destination_type(m, &dest) >= 0);
+ assert_se(dest == SD_LLDP_DESTINATION_TYPE_NEAREST_BRIDGE);
+
+ return 0;
+}
+
static int lldp_parse_tlv_packet(tlv_packet *m, int len) {
uint8_t subtype;
@@ -212,6 +221,8 @@ static int lldp_parse_tlv_packet(tlv_packet *m, int len) {
assert_se(lldp_parse_ttl_tlv(m) >= 0);
assert_se(lldp_parse_system_desc_tlv(m) >= 0);
+ assert_se(lldp_get_destination_type(m) >= 0);
+
return 0;
}
diff --git a/src/systemd/sd-lldp.h b/src/systemd/sd-lldp.h
index e472cbece9..bf6dfc1ee0 100644
--- a/src/systemd/sd-lldp.h
+++ b/src/systemd/sd-lldp.h
@@ -28,6 +28,12 @@ enum {
SD_LLDP_EVENT_UPDATE_INFO = 0,
};
+enum {
+ SD_LLDP_DESTINATION_TYPE_NEAREST_BRIDGE,
+ SD_LLDP_DESTINATION_TYPE_NEAREST_NON_TPMR_BRIDGE,
+ SD_LLDP_DESTINATION_TYPE_NEAREST_CUSTOMER_BRIDGE,
+};
+
typedef struct sd_lldp sd_lldp;
typedef struct tlv_packet sd_lldp_packet;
@@ -56,4 +62,6 @@ int sd_lldp_packet_read_port_description(sd_lldp_packet *tlv, char **data, uint1
sd_lldp_packet *sd_lldp_packet_ref(sd_lldp_packet *tlv);
sd_lldp_packet *sd_lldp_packet_unref(sd_lldp_packet *tlv);
+int sd_lldp_packet_get_destination_type(sd_lldp_packet *tlv, int *dest);
+
int sd_lldp_get_packets(sd_lldp *lldp, sd_lldp_packet ***tlvs);