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-rw-r--r--src/network/networkctl.c253
1 files changed, 252 insertions, 1 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
index 53516638dc..91eb6357d4 100644
--- a/src/network/networkctl.c
+++ b/src/network/networkctl.c
@@ -247,6 +247,251 @@ static int list_links(char **args, unsigned n) {
return 0;
}
+/* IEEE Organizationally Unique Identifier vendor string */
+static int ieee_oui(struct udev_hwdb *hwdb, struct ether_addr *mac, char **ret) {
+ struct udev_list_entry *entry;
+ char *description;
+ char str[32];
+
+ /* skip commonly misused 00:00:00 (Xerox) prefix */
+ if (memcmp(mac, "\0\0\0", 3) == 0)
+ return -EINVAL;
+
+ snprintf(str, sizeof(str), "OUI:%02X%02X%02X%02X%02X%02X", mac->ether_addr_octet[0], mac->ether_addr_octet[1], mac->ether_addr_octet[2],
+ mac->ether_addr_octet[3], mac->ether_addr_octet[4], mac->ether_addr_octet[5]);
+
+ udev_list_entry_foreach(entry, udev_hwdb_get_properties_list_entry(hwdb, str, 0))
+ if (strcmp(udev_list_entry_get_name(entry), "ID_OUI_FROM_DATABASE") == 0) {
+ description = strdup(udev_list_entry_get_value(entry));
+ if (!description)
+ return -ENOMEM;
+
+ *ret = description;
+ return 0;
+ }
+
+ return -ENODATA;
+}
+
+static int get_gateway_description(sd_rtnl *rtnl, struct udev_hwdb *hwdb, int ifindex, int family,
+ union in_addr_union *gateway, char **gateway_description) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
+ sd_rtnl_message *m;
+ int r;
+
+ assert(rtnl);
+ assert(ifindex >= 0);
+ assert(family == AF_INET || family == AF_INET6);
+ assert(gateway);
+ assert(gateway_description);
+
+ r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_call(rtnl, req, 0, &reply);
+ if (r < 0)
+ return r;
+
+ for (m = reply; m; m = sd_rtnl_message_next(m)) {
+ union in_addr_union gw = {};
+ struct ether_addr mac = {};
+ uint16_t type;
+ int ifi, fam;
+
+ r = sd_rtnl_message_get_errno(m);
+ if (r < 0) {
+ log_error_errno(r, "got error: %m");
+ continue;
+ }
+
+ r = sd_rtnl_message_get_type(m, &type);
+ if (r < 0) {
+ log_error_errno(r, "could not get type: %m");
+ continue;
+ }
+
+ if (type != RTM_NEWNEIGH) {
+ log_error("type is not RTM_NEWNEIGH");
+ continue;
+ }
+
+ r = sd_rtnl_message_neigh_get_family(m, &fam);
+ if (r < 0) {
+ log_error_errno(r, "could not get family: %m");
+ continue;
+ }
+
+ if (fam != family) {
+ log_error("family is not correct");
+ continue;
+ }
+
+ r = sd_rtnl_message_neigh_get_ifindex(m, &ifi);
+ if (r < 0) {
+ log_error_errno(r, "colud not get ifindex: %m");
+ continue;
+ }
+
+ if (ifindex > 0 && ifi != ifindex)
+ continue;
+
+ switch (fam) {
+ case AF_INET:
+ r = sd_rtnl_message_read_in_addr(m, NDA_DST, &gw.in);
+ if (r < 0)
+ continue;
+
+ break;
+ case AF_INET6:
+ r = sd_rtnl_message_read_in6_addr(m, NDA_DST, &gw.in6);
+ if (r < 0)
+ continue;
+
+ break;
+ default:
+ continue;
+ }
+
+ if (!in_addr_equal(fam, &gw, gateway))
+ continue;
+
+ r = sd_rtnl_message_read_ether_addr(m, NDA_LLADDR, &mac);
+ if (r < 0)
+ continue;
+
+ r = ieee_oui(hwdb, &mac, gateway_description);
+ if (r < 0)
+ continue;
+
+ return 0;
+ }
+
+ return -ENODATA;
+}
+
+static int dump_gateways(sd_rtnl *rtnl, struct udev_hwdb *hwdb, const char *prefix, int ifindex) {
+ _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
+ sd_rtnl_message *m;
+ bool first = true;
+ int r;
+
+ assert(rtnl);
+ assert(ifindex >= 0);
+
+ r = sd_rtnl_message_new_route(rtnl, &req, RTM_GETROUTE, AF_UNSPEC, RTPROT_UNSPEC);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_call(rtnl, req, 0, &reply);
+ if (r < 0)
+ return r;
+
+ for (m = reply; m; m = sd_rtnl_message_next(m)) {
+ _cleanup_free_ char *gateway = NULL, *gateway_description = NULL;
+ union in_addr_union gw = {};
+ uint16_t type;
+ uint32_t ifi;
+ int family;
+
+ r = sd_rtnl_message_get_errno(m);
+ if (r < 0) {
+ log_error_errno(r, "got error: %m");
+ continue;
+ }
+
+ r = sd_rtnl_message_get_type(m, &type);
+ if (r < 0) {
+ log_error_errno(r, "could not get type: %m");
+ continue;
+ }
+
+ if (type != RTM_NEWROUTE) {
+ log_error("type is not RTM_NEWROUTE");
+ continue;
+ }
+
+ r = sd_rtnl_message_route_get_family(m, &family);
+ if (r < 0) {
+ log_error_errno(r, "could not get family: %m");
+ continue;
+ }
+
+ r = sd_rtnl_message_read_u32(m, RTA_OIF, &ifi);
+ if (r < 0) {
+ log_error_errno(r, "colud not get RTA_OIF: %m");
+ continue;
+ }
+
+ if (ifindex > 0 && ifi != (unsigned) ifindex)
+ continue;
+
+ switch (family) {
+ case AF_INET:
+ r = sd_rtnl_message_read_in_addr(m, RTA_GATEWAY, &gw.in);
+ if (r < 0)
+ continue;
+
+ r = sd_rtnl_message_read_in_addr(m, RTA_DST, NULL);
+ if (r >= 0)
+ continue;
+
+ r = sd_rtnl_message_read_in_addr(m, RTA_SRC, NULL);
+ if (r >= 0)
+ continue;
+
+ break;
+ case AF_INET6:
+ r = sd_rtnl_message_read_in6_addr(m, RTA_GATEWAY, &gw.in6);
+ if (r < 0)
+ continue;
+
+ r = sd_rtnl_message_read_in6_addr(m, RTA_DST, NULL);
+ if (r >= 0)
+ continue;
+
+ r = sd_rtnl_message_read_in6_addr(m, RTA_SRC, NULL);
+ if (r >= 0)
+ continue;
+
+ break;
+ default:
+ continue;
+ }
+
+ r = in_addr_to_string(family, &gw, &gateway);
+ if (r < 0)
+ continue;
+
+ r = get_gateway_description(rtnl, hwdb, ifi, family, &gw, &gateway_description);
+ if (r < 0)
+ log_debug("could not get description of gateway: %s", strerror(-r));
+
+ if (gateway_description)
+ printf("%*s%s (%s)\n",
+ (int) strlen(prefix),
+ first ? prefix : "",
+ gateway, gateway_description);
+ else
+ printf("%*s%s\n",
+ (int) strlen(prefix),
+ first ? prefix : "",
+ gateway);
+
+ first = false;
+ }
+
+ return 0;
+}
+
static int dump_addresses(sd_rtnl *rtnl, const char *prefix, int ifindex) {
_cleanup_free_ struct local_address *local = NULL;
int r, n, i;
@@ -284,9 +529,11 @@ static void dump_list(const char *prefix, char **l) {
static int link_status_one(sd_rtnl *rtnl, struct udev *udev, const char *name) {
_cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **domains = NULL;
- _cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
+ _cleanup_free_ char *setup_state = NULL, *operational_state = NULL, *gateway = NULL, *gateway_description = NULL,
+ *gateway6 = NULL, *gateway6_description = NULL;
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
_cleanup_udev_device_unref_ struct udev_device *d = NULL;
+ _cleanup_udev_hwdb_unref_ struct udev_hwdb *hwdb = NULL;
char devid[2 + DECIMAL_STR_MAX(int)];
_cleanup_free_ char *t = NULL, *network = NULL;
const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL, *link = NULL;
@@ -420,6 +667,10 @@ static int link_status_one(sd_rtnl *rtnl, struct udev *udev, const char *name) {
if (mtu > 0)
printf(" MTU: %u\n", mtu);
+ hwdb = udev_hwdb_new(udev);
+
+ dump_gateways(rtnl, hwdb, " Gateway: ", ifindex);
+
dump_addresses(rtnl, " Address: ", ifindex);
if (!strv_isempty(dns))
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 16:22:57 +0000