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Diffstat (limited to 'src/libsystemd-network/test-lldp.c')
-rw-r--r--src/libsystemd-network/test-lldp.c338
1 files changed, 184 insertions, 154 deletions
diff --git a/src/libsystemd-network/test-lldp.c b/src/libsystemd-network/test-lldp.c
index 06545aee59..6bcd65de0a 100644
--- a/src/libsystemd-network/test-lldp.c
+++ b/src/libsystemd-network/test-lldp.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -20,212 +18,244 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <arpa/inet.h>
+#include <net/ethernet.h>
#include <stdio.h>
#include <string.h>
-#include <net/ethernet.h>
-#include <arpa/inet.h>
+#include <unistd.h>
+
+#include "sd-event.h"
+#include "sd-lldp.h"
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "lldp-network.h"
#include "macro.h"
-#include "lldp.h"
-#include "lldp-tlv.h"
+#include "string-util.h"
#define TEST_LLDP_PORT "em1"
#define TEST_LLDP_TYPE_SYSTEM_NAME "systemd-lldp"
#define TEST_LLDP_TYPE_SYSTEM_DESC "systemd-lldp-desc"
-static struct ether_addr mac_addr = {
- .ether_addr_octet = {'A', 'B', 'C', '1', '2', '3'}
-};
-
-static int lldp_build_tlv_packet(tlv_packet **ret) {
- _cleanup_tlv_packet_free_ tlv_packet *m = NULL;
- const uint8_t lldp_dst[] = LLDP_MULTICAST_ADDR;
- struct ether_header ether = {
- .ether_type = htons(ETHERTYPE_LLDP),
- };
-
- /* Append ethernet header */
- memcpy(&ether.ether_dhost, lldp_dst, ETHER_ADDR_LEN);
- memcpy(&ether.ether_shost, &mac_addr, ETHER_ADDR_LEN);
-
- assert_se(tlv_packet_new(&m) >= 0);
-
- assert_se(tlv_packet_append_bytes(m, &ether, sizeof(struct ether_header)) >= 0);
-
- assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_CHASSIS_ID) >= 0);
-
- assert_se(tlv_packet_append_u8(m, LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS) >= 0);
- assert_se(tlv_packet_append_bytes(m, &mac_addr, ETHER_ADDR_LEN) >= 0);
-
- assert_se(lldp_tlv_packet_close_container(m) >= 0);
-
- /* port name */
- assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_PORT_ID) >= 0);
-
- assert_se(tlv_packet_append_u8(m, LLDP_PORT_SUBTYPE_INTERFACE_NAME) >= 0);
- assert_se(tlv_packet_append_bytes(m, TEST_LLDP_PORT, strlen(TEST_LLDP_PORT) + 1) >= 0);
-
- assert_se(lldp_tlv_packet_close_container(m) >= 0);
-
- /* ttl */
- assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_TTL) >= 0);
-
- assert_se(tlv_packet_append_u16(m, 170) >= 0);
-
- assert_se(lldp_tlv_packet_close_container(m) >= 0);
-
- /* system name */
- assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_SYSTEM_NAME) >= 0);
-
- assert_se(tlv_packet_append_bytes(m, TEST_LLDP_TYPE_SYSTEM_NAME,
- strlen(TEST_LLDP_TYPE_SYSTEM_NAME)) >= 0);
- assert_se(lldp_tlv_packet_close_container(m) >= 0);
+static int test_fd[2] = { -1, -1 };
+static int lldp_handler_calls;
- /* system descrition */
- assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_SYSTEM_DESCRIPTION) >= 0);
+int lldp_network_bind_raw_socket(int ifindex) {
+ if (socketpair(AF_UNIX, SOCK_DGRAM | SOCK_NONBLOCK, 0, test_fd) < 0)
+ return -errno;
- assert_se(tlv_packet_append_bytes(m, TEST_LLDP_TYPE_SYSTEM_DESC,
- strlen(TEST_LLDP_TYPE_SYSTEM_DESC)) >= 0);
-
- assert_se(lldp_tlv_packet_close_container(m) >= 0);
-
- /* Mark end of packet */
- assert_se(lldp_tlv_packet_open_container(m, LLDP_TYPE_END) >= 0);
- assert_se(lldp_tlv_packet_close_container(m) >= 0);
-
- *ret = m;
-
- m = NULL;
-
- return 0;
+ return test_fd[0];
}
-static int lldp_parse_chassis_tlv(tlv_packet *m, uint8_t *type) {
- uint8_t *p, subtype;
- uint16_t length;
+static void lldp_handler(sd_lldp *lldp, sd_lldp_event event, sd_lldp_neighbor *n, void *userdata) {
+ lldp_handler_calls++;
+}
- assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_CHASSIS_ID) >= 0);
- assert_se(tlv_packet_read_u8(m, &subtype) >= 0);
+static int start_lldp(sd_lldp **lldp, sd_event *e, sd_lldp_callback_t cb, void *cb_data) {
+ int r;
- switch (subtype) {
- case LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS:
+ r = sd_lldp_new(lldp);
+ if (r < 0)
+ return r;
- *type = LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS;
- assert_se(tlv_packet_read_bytes(m, &p, &length) >= 0);
+ r = sd_lldp_set_ifindex(*lldp, 42);
+ if (r < 0)
+ return r;
- assert_se(memcmp(p, &mac_addr.ether_addr_octet, ETHER_ADDR_LEN) == 0);
+ r = sd_lldp_set_callback(*lldp, cb, cb_data);
+ if (r < 0)
+ return r;
- break;
- default:
- assert_not_reached("Unhandled option");
- }
+ r = sd_lldp_attach_event(*lldp, e, 0);
+ if (r < 0)
+ return r;
- assert_se(lldp_tlv_packet_exit_container(m) >= 0);
+ r = sd_lldp_start(*lldp);
+ if (r < 0)
+ return r;
return 0;
}
-static int lldp_parse_port_id_tlv(tlv_packet *m) {
- _cleanup_free_ char *p = NULL;
- char *str = NULL;
- uint16_t length;
- uint8_t subtype;
-
- assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_PORT_ID) >= 0);
-
- assert_se(tlv_packet_read_u8(m, &subtype) >= 0);
+static int stop_lldp(sd_lldp *lldp) {
+ int r;
- switch (subtype) {
- case LLDP_PORT_SUBTYPE_INTERFACE_NAME:
- assert_se(tlv_packet_read_string(m, &str, &length) >= 0);
+ r = sd_lldp_stop(lldp);
+ if (r < 0)
+ return r;
- p = strndup(str, length-1);
- assert_se(p);
+ r = sd_lldp_detach_event(lldp);
+ if (r < 0)
+ return r;
- assert_se(streq(p, TEST_LLDP_PORT) == 1);
- break;
- default:
- assert_not_reached("Unhandled option");
- }
-
- assert_se(lldp_tlv_packet_exit_container(m) >= 0);
+ sd_lldp_unref(lldp);
+ safe_close(test_fd[1]);
return 0;
}
-static int lldp_parse_system_name_tlv(tlv_packet *m) {
- _cleanup_free_ char *p = NULL;
- char *str = NULL;
- uint16_t length;
+static void test_receive_basic_packet(sd_event *e) {
+
+ static const uint8_t frame[] = {
+ /* Ethernet header */
+ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03, /* Destination MAC*/
+ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, /* Source MAC */
+ 0x88, 0xcc, /* Ethertype */
+ /* LLDP mandatory TLVs */
+ 0x02, 0x07, 0x04, 0x00, 0x01, 0x02, /* Chassis: MAC, 00:01:02:03:04:05 */
+ 0x03, 0x04, 0x05,
+ 0x04, 0x04, 0x05, 0x31, 0x2f, 0x33, /* Port: interface name, "1/3" */
+ 0x06, 0x02, 0x00, 0x78, /* TTL: 120 seconds*/
+ /* LLDP optional TLVs */
+ 0x08, 0x04, 0x50, 0x6f, 0x72, 0x74, /* Port Description: "Port" */
+ 0x0a, 0x03, 0x53, 0x59, 0x53, /* System Name: "SYS" */
+ 0x0c, 0x04, 0x66, 0x6f, 0x6f, 0x00, /* System Description: "foo" (NULL-terminated) */
+ 0x00, 0x00 /* End Of LLDPDU */
+ };
- assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_SYSTEM_NAME) >= 0);
- assert_se(tlv_packet_read_string(m, &str, &length) >= 0);
+ sd_lldp *lldp;
+ sd_lldp_neighbor **neighbors;
+ uint8_t type;
+ const void *data;
+ uint16_t ttl;
+ size_t length;
+ const char *str;
- p = strndup(str, length);
- assert_se(p);
+ lldp_handler_calls = 0;
+ assert_se(start_lldp(&lldp, e, lldp_handler, NULL) == 0);
- assert_se(streq(p, TEST_LLDP_TYPE_SYSTEM_NAME) == 1);
+ assert_se(write(test_fd[1], frame, sizeof(frame)) == sizeof(frame));
+ sd_event_run(e, 0);
+ assert_se(lldp_handler_calls == 1);
+ assert_se(sd_lldp_get_neighbors(lldp, &neighbors) == 1);
- assert_se(lldp_tlv_packet_exit_container(m) >= 0);
+ assert_se(sd_lldp_neighbor_get_chassis_id(neighbors[0], &type, &data, &length) == 0);
+ assert_se(type == SD_LLDP_CHASSIS_SUBTYPE_MAC_ADDRESS);
+ assert_se(length == ETH_ALEN);
+ assert_se(!memcmp(data, "\x00\x01\x02\x03\x04\x05", ETH_ALEN));
- return 1;
-}
+ assert_se(sd_lldp_neighbor_get_port_id(neighbors[0], &type, &data, &length) == 0);
+ assert_se(type == SD_LLDP_PORT_SUBTYPE_INTERFACE_NAME);
+ assert_se(length == 3);
+ assert_se(strneq((char *) data, "1/3", 3));
-static int lldp_parse_system_desc_tlv(tlv_packet *m) {
- _cleanup_free_ char *p = NULL;
- char *str = NULL;
- uint16_t length;
+ assert_se(sd_lldp_neighbor_get_port_description(neighbors[0], &str) == 0);
+ assert_se(streq(str, "Port"));
- assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_SYSTEM_DESCRIPTION) >= 0);
- assert_se(tlv_packet_read_string(m, &str, &length) >= 0);
+ assert_se(sd_lldp_neighbor_get_system_name(neighbors[0], &str) == 0);
+ assert_se(streq(str, "SYS"));
- p = strndup(str, length);
- assert_se(p);
+ assert_se(sd_lldp_neighbor_get_system_description(neighbors[0], &str) == 0);
+ assert_se(streq(str, "foo"));
- assert_se(streq(p, TEST_LLDP_TYPE_SYSTEM_DESC) == 1);
+ assert_se(sd_lldp_neighbor_get_ttl(neighbors[0], &ttl) == 0);
+ assert_se(ttl == 120);
- assert_se(lldp_tlv_packet_exit_container(m) >= 0);
+ sd_lldp_neighbor_unref(neighbors[0]);
+ free(neighbors);
- return 0;
+ assert_se(stop_lldp(lldp) == 0);
}
-static int lldp_parse_ttl_tlv(tlv_packet *m) {
- uint16_t ttl;
-
- assert_se(lldp_tlv_packet_enter_container(m, LLDP_TYPE_TTL) >= 0);
- assert_se(tlv_packet_read_u16(m, &ttl) >= 0);
+static void test_receive_incomplete_packet(sd_event *e) {
+ sd_lldp *lldp;
+ sd_lldp_neighbor **neighbors;
+ uint8_t frame[] = {
+ /* Ethernet header */
+ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03, /* Destination MAC*/
+ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, /* Source MAC */
+ 0x88, 0xcc, /* Ethertype */
+ /* LLDP mandatory TLVs */
+ 0x02, 0x07, 0x04, 0x00, 0x01, 0x02, /* Chassis: MAC, 00:01:02:03:04:05 */
+ 0x03, 0x04, 0x05,
+ 0x04, 0x04, 0x05, 0x31, 0x2f, 0x33, /* Port: interface name, "1/3" */
+ /* Missing TTL */
+ 0x00, 0x00 /* End Of LLDPDU */
+ };
- assert_se(ttl == 170);
+ lldp_handler_calls = 0;
+ assert_se(start_lldp(&lldp, e, lldp_handler, NULL) == 0);
- assert_se(lldp_tlv_packet_exit_container(m) >= 0);
+ assert_se(write(test_fd[1], frame, sizeof(frame)) == sizeof(frame));
+ sd_event_run(e, 0);
+ assert_se(lldp_handler_calls == 0);
+ assert_se(sd_lldp_get_neighbors(lldp, &neighbors) == 0);
- return 0;
+ assert_se(stop_lldp(lldp) == 0);
}
-static int lldp_parse_tlv_packet(tlv_packet *m, int len) {
- uint8_t subtype;
-
- assert_se(tlv_packet_parse_pdu(m, len) >= 0);
- assert_se(lldp_parse_chassis_tlv(m, &subtype) >= 0);
- assert_se(lldp_parse_port_id_tlv(m) >= 0);
- assert_se(lldp_parse_system_name_tlv(m) >= 0);
- assert_se(lldp_parse_ttl_tlv(m) >= 0);
- assert_se(lldp_parse_system_desc_tlv(m) >= 0);
+static void test_receive_oui_packet(sd_event *e) {
+ sd_lldp *lldp;
+ sd_lldp_neighbor **neighbors;
+ uint8_t frame[] = {
+ /* Ethernet header */
+ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03, /* Destination MAC*/
+ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, /* Source MAC */
+ 0x88, 0xcc, /* Ethertype */
+ /* LLDP mandatory TLVs */
+ 0x02, 0x07, 0x04, 0x00, 0x01, 0x02, /* Chassis: MAC, 00:01:02:03:04:05 */
+ 0x03, 0x04, 0x05,
+ 0x04, 0x04, 0x05, 0x31, 0x2f, 0x33, /* Port TLV: interface name, "1/3" */
+ 0x06, 0x02, 0x00, 0x78, /* TTL: 120 seconds*/
+ /* LLDP optional TLVs */
+ 0xfe, 0x06, 0x00, 0x80, 0xc2, 0x01, /* Port VLAN ID: 0x1234 */
+ 0x12, 0x34,
+ 0xfe, 0x07, 0x00, 0x80, 0xc2, 0x02, /* Port and protocol: flag 1, PPVID 0x7788 */
+ 0x01, 0x77, 0x88,
+ 0xfe, 0x0d, 0x00, 0x80, 0xc2, 0x03, /* VLAN Name: ID 0x1234, name "Vlan51" */
+ 0x12, 0x34, 0x06, 0x56, 0x6c, 0x61,
+ 0x6e, 0x35, 0x31,
+ 0xfe, 0x06, 0x00, 0x80, 0xc2, 0x06, /* Management VID: 0x0102 */
+ 0x01, 0x02,
+ 0xfe, 0x09, 0x00, 0x80, 0xc2, 0x07, /* Link aggregation: status 1, ID 0x00140012 */
+ 0x01, 0x00, 0x14, 0x00, 0x12,
+ 0x00, 0x00 /* End of LLDPDU */
+ };
- return 0;
+ lldp_handler_calls = 0;
+ assert_se(start_lldp(&lldp, e, lldp_handler, NULL) == 0);
+
+ assert_se(write(test_fd[1], frame, sizeof(frame)) == sizeof(frame));
+ sd_event_run(e, 0);
+ assert_se(lldp_handler_calls == 1);
+ assert_se(sd_lldp_get_neighbors(lldp, &neighbors) == 1);
+
+ assert_se(sd_lldp_neighbor_tlv_rewind(neighbors[0]) >= 0);
+ assert_se(sd_lldp_neighbor_tlv_is_type(neighbors[0], SD_LLDP_TYPE_CHASSIS_ID) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_type(neighbors[0], SD_LLDP_TYPE_PORT_ID) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_type(neighbors[0], SD_LLDP_TYPE_TTL) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_oui(neighbors[0], SD_LLDP_OUI_802_1, SD_LLDP_OUI_802_1_SUBTYPE_PORT_VLAN_ID) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_oui(neighbors[0], SD_LLDP_OUI_802_1, SD_LLDP_OUI_802_1_SUBTYPE_PORT_PROTOCOL_VLAN_ID) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_oui(neighbors[0], SD_LLDP_OUI_802_1, SD_LLDP_OUI_802_1_SUBTYPE_VLAN_NAME) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_oui(neighbors[0], SD_LLDP_OUI_802_1, SD_LLDP_OUI_802_1_SUBTYPE_MANAGEMENT_VID) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_oui(neighbors[0], SD_LLDP_OUI_802_1, SD_LLDP_OUI_802_1_SUBTYPE_LINK_AGGREGATION) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) > 0);
+ assert_se(sd_lldp_neighbor_tlv_is_type(neighbors[0], SD_LLDP_TYPE_END) > 0);
+ assert_se(sd_lldp_neighbor_tlv_next(neighbors[0]) == 0);
+
+ sd_lldp_neighbor_unref(neighbors[0]);
+ free(neighbors);
+
+ assert_se(stop_lldp(lldp) == 0);
}
int main(int argc, char *argv[]) {
- _cleanup_tlv_packet_free_ tlv_packet *tlv = NULL;
-
- /* form a packet */
- lldp_build_tlv_packet(&tlv);
+ _cleanup_(sd_event_unrefp) sd_event *e = NULL;
- /* parse the packet */
- tlv_packet_parse_pdu(tlv, tlv->length);
+ log_set_max_level(LOG_DEBUG);
- /* verify */
- lldp_parse_tlv_packet(tlv, tlv->length);
+ /* LLDP reception tests */
+ assert_se(sd_event_new(&e) == 0);
+ test_receive_basic_packet(e);
+ test_receive_incomplete_packet(e);
+ test_receive_oui_packet(e);
return 0;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-23 00:56:52 +0000