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-rw-r--r--src/network/networkctl.c1183
1 files changed, 1183 insertions, 0 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
new file mode 100644
index 0000000..b14b81c
--- /dev/null
+++ b/src/network/networkctl.c
@@ -0,0 +1,1183 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <getopt.h>
+#include <linux/if_addrlabel.h>
+#include <net/if.h>
+#include <stdbool.h>
+
+#include "sd-device.h"
+#include "sd-hwdb.h"
+#include "sd-lldp.h"
+#include "sd-netlink.h"
+#include "sd-network.h"
+
+#include "alloc-util.h"
+#include "arphrd-list.h"
+#include "device-util.h"
+#include "ether-addr-util.h"
+#include "fd-util.h"
+#include "hwdb-util.h"
+#include "local-addresses.h"
+#include "locale-util.h"
+#include "macro.h"
+#include "main-func.h"
+#include "netlink-util.h"
+#include "pager.h"
+#include "parse-util.h"
+#include "pretty-print.h"
+#include "socket-util.h"
+#include "sparse-endian.h"
+#include "stdio-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "strv.h"
+#include "strxcpyx.h"
+#include "terminal-util.h"
+#include "util.h"
+#include "verbs.h"
+
+static PagerFlags arg_pager_flags = 0;
+static bool arg_legend = true;
+static bool arg_all = false;
+
+static char *link_get_type_string(unsigned short iftype, sd_device *d) {
+ const char *t, *devtype;
+ char *p;
+
+ if (d &&
+ sd_device_get_devtype(d, &devtype) >= 0 &&
+ !isempty(devtype))
+ return strdup(devtype);
+
+ t = arphrd_to_name(iftype);
+ if (!t)
+ return NULL;
+
+ p = strdup(t);
+ if (!p)
+ return NULL;
+
+ ascii_strlower(p);
+ return p;
+}
+
+static void operational_state_to_color(const char *state, const char **on, const char **off) {
+ assert(on);
+ assert(off);
+
+ if (streq_ptr(state, "routable")) {
+ *on = ansi_highlight_green();
+ *off = ansi_normal();
+ } else if (streq_ptr(state, "degraded")) {
+ *on = ansi_highlight_yellow();
+ *off = ansi_normal();
+ } else
+ *on = *off = "";
+}
+
+static void setup_state_to_color(const char *state, const char **on, const char **off) {
+ assert(on);
+ assert(off);
+
+ if (streq_ptr(state, "configured")) {
+ *on = ansi_highlight_green();
+ *off = ansi_normal();
+ } else if (streq_ptr(state, "configuring")) {
+ *on = ansi_highlight_yellow();
+ *off = ansi_normal();
+ } else if (STRPTR_IN_SET(state, "failed", "linger")) {
+ *on = ansi_highlight_red();
+ *off = ansi_normal();
+ } else
+ *on = *off = "";
+}
+
+typedef struct LinkInfo {
+ char name[IFNAMSIZ+1];
+ int ifindex;
+ unsigned short iftype;
+ struct ether_addr mac_address;
+ uint32_t mtu;
+
+ bool has_mac_address:1;
+ bool has_mtu:1;
+} LinkInfo;
+
+static int link_info_compare(const LinkInfo *a, const LinkInfo *b) {
+ return CMP(a->ifindex, b->ifindex);
+}
+
+static int decode_link(sd_netlink_message *m, LinkInfo *info) {
+ const char *name;
+ uint16_t type;
+ int r;
+
+ assert(m);
+ assert(info);
+
+ r = sd_netlink_message_get_type(m, &type);
+ if (r < 0)
+ return r;
+
+ if (type != RTM_NEWLINK)
+ return 0;
+
+ r = sd_rtnl_message_link_get_ifindex(m, &info->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name);
+ if (r < 0)
+ return r;
+
+ r = sd_rtnl_message_link_get_type(m, &info->iftype);
+ if (r < 0)
+ return r;
+
+ strscpy(info->name, sizeof info->name, name);
+
+ info->has_mac_address =
+ sd_netlink_message_read_ether_addr(m, IFLA_ADDRESS, &info->mac_address) >= 0 &&
+ memcmp(&info->mac_address, &ETHER_ADDR_NULL, sizeof(struct ether_addr)) != 0;
+
+ info->has_mtu =
+ sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu) &&
+ info->mtu > 0;
+
+ return 1;
+}
+
+static int acquire_link_info_strv(sd_netlink *rtnl, char **l, LinkInfo **ret) {
+ _cleanup_free_ LinkInfo *links = NULL;
+ char **i;
+ size_t c = 0;
+ int r;
+
+ assert(rtnl);
+ assert(ret);
+
+ links = new(LinkInfo, strv_length(l));
+ if (!links)
+ return log_oom();
+
+ STRV_FOREACH(i, l) {
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
+ int ifindex;
+
+ if (parse_ifindex(*i, &ifindex) >= 0)
+ r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, ifindex);
+ else {
+ r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
+ if (r < 0)
+ return rtnl_log_create_error(r);
+
+ r = sd_netlink_message_append_string(req, IFLA_IFNAME, *i);
+ }
+ if (r < 0)
+ return rtnl_log_create_error(r);
+
+ r = sd_netlink_call(rtnl, req, 0, &reply);
+ if (r < 0)
+ return log_error_errno(r, "Failed to request link: %m");
+
+ r = decode_link(reply, links + c);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ c++;
+ }
+
+ typesafe_qsort(links, c, link_info_compare);
+
+ *ret = TAKE_PTR(links);
+
+ return (int) c;
+}
+
+static int acquire_link_info_all(sd_netlink *rtnl, LinkInfo **ret) {
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
+ _cleanup_free_ LinkInfo *links = NULL;
+ size_t allocated = 0, c = 0;
+ sd_netlink_message *i;
+ int r;
+
+ assert(rtnl);
+ assert(ret);
+
+ r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
+ if (r < 0)
+ return rtnl_log_create_error(r);
+
+ r = sd_netlink_message_request_dump(req, true);
+ if (r < 0)
+ return rtnl_log_create_error(r);
+
+ r = sd_netlink_call(rtnl, req, 0, &reply);
+ if (r < 0)
+ return log_error_errno(r, "Failed to enumerate links: %m");
+
+ for (i = reply; i; i = sd_netlink_message_next(i)) {
+ if (!GREEDY_REALLOC(links, allocated, c+1))
+ return -ENOMEM;
+
+ r = decode_link(i, links + c);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ c++;
+ }
+
+ typesafe_qsort(links, c, link_info_compare);
+
+ *ret = TAKE_PTR(links);
+
+ return (int) c;
+}
+
+static int list_links(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ _cleanup_free_ LinkInfo *links = NULL;
+ int c, i, r;
+
+ r = sd_netlink_open(&rtnl);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to netlink: %m");
+
+ if (argc > 1)
+ c = acquire_link_info_strv(rtnl, argv + 1, &links);
+ else
+ c = acquire_link_info_all(rtnl, &links);
+ if (c < 0)
+ return c;
+
+ (void) pager_open(arg_pager_flags);
+
+ if (arg_legend)
+ printf("%3s %-16s %-18s %-11s %-10s\n",
+ "IDX",
+ "LINK",
+ "TYPE",
+ "OPERATIONAL",
+ "SETUP");
+
+ for (i = 0; i < c; i++) {
+ _cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
+ _cleanup_(sd_device_unrefp) sd_device *d = NULL;
+ const char *on_color_operational, *off_color_operational,
+ *on_color_setup, *off_color_setup;
+ char devid[2 + DECIMAL_STR_MAX(int)];
+ _cleanup_free_ char *t = NULL;
+
+ (void) sd_network_link_get_operational_state(links[i].ifindex, &operational_state);
+ operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
+
+ r = sd_network_link_get_setup_state(links[i].ifindex, &setup_state);
+ if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */
+ setup_state = strdup("unmanaged");
+ setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
+
+ xsprintf(devid, "n%i", links[i].ifindex);
+ (void) sd_device_new_from_device_id(&d, devid);
+
+ t = link_get_type_string(links[i].iftype, d);
+
+ printf("%3i %-16s %-18s %s%-11s%s %s%-10s%s\n",
+ links[i].ifindex, links[i].name, strna(t),
+ on_color_operational, strna(operational_state), off_color_operational,
+ on_color_setup, strna(setup_state), off_color_setup);
+ }
+
+ if (arg_legend)
+ printf("\n%i links listed.\n", c);
+
+ return 0;
+}
+
+/* IEEE Organizationally Unique Identifier vendor string */
+static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) {
+ const char *description;
+ char modalias[STRLEN("OUI:XXYYXXYYXXYY") + 1], *desc;
+ int r;
+
+ assert(ret);
+
+ if (!hwdb)
+ return -EINVAL;
+
+ if (!mac)
+ return -EINVAL;
+
+ /* skip commonly misused 00:00:00 (Xerox) prefix */
+ if (memcmp(mac, "\0\0\0", 3) == 0)
+ return -EINVAL;
+
+ xsprintf(modalias, "OUI:" ETHER_ADDR_FORMAT_STR,
+ ETHER_ADDR_FORMAT_VAL(*mac));
+
+ r = sd_hwdb_get(hwdb, modalias, "ID_OUI_FROM_DATABASE", &description);
+ if (r < 0)
+ return r;
+
+ desc = strdup(description);
+ if (!desc)
+ return -ENOMEM;
+
+ *ret = desc;
+
+ return 0;
+}
+
+static int get_gateway_description(
+ sd_netlink *rtnl,
+ sd_hwdb *hwdb,
+ int ifindex,
+ int family,
+ union in_addr_union *gateway,
+ char **gateway_description) {
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
+ sd_netlink_message *m;
+ int r;
+
+ assert(rtnl);
+ assert(ifindex >= 0);
+ assert(IN_SET(family, AF_INET, 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_netlink_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_call(rtnl, req, 0, &reply);
+ if (r < 0)
+ return r;
+
+ for (m = reply; m; m = sd_netlink_message_next(m)) {
+ union in_addr_union gw = {};
+ struct ether_addr mac = {};
+ uint16_t type;
+ int ifi, fam;
+
+ r = sd_netlink_message_get_errno(m);
+ if (r < 0) {
+ log_error_errno(r, "got error: %m");
+ continue;
+ }
+
+ r = sd_netlink_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, "could not get ifindex: %m");
+ continue;
+ }
+
+ if (ifindex > 0 && ifi != ifindex)
+ continue;
+
+ switch (fam) {
+ case AF_INET:
+ r = sd_netlink_message_read_in_addr(m, NDA_DST, &gw.in);
+ if (r < 0)
+ continue;
+
+ break;
+ case AF_INET6:
+ r = sd_netlink_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_netlink_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_netlink *rtnl,
+ sd_hwdb *hwdb,
+ const char *prefix,
+ int ifindex) {
+ _cleanup_free_ struct local_address *local = NULL;
+ int r, n, i;
+
+ assert(rtnl);
+ assert(prefix);
+
+ n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local);
+ if (n < 0)
+ return n;
+
+ for (i = 0; i < n; i++) {
+ _cleanup_free_ char *gateway = NULL, *description = NULL;
+
+ r = in_addr_to_string(local[i].family, &local[i].address, &gateway);
+ if (r < 0)
+ return r;
+
+ r = get_gateway_description(rtnl, hwdb, local[i].ifindex, local[i].family, &local[i].address, &description);
+ if (r < 0)
+ log_debug_errno(r, "Could not get description of gateway: %m");
+
+ printf("%*s%s",
+ (int) strlen(prefix),
+ i == 0 ? prefix : "",
+ gateway);
+
+ if (description)
+ printf(" (%s)", description);
+
+ /* Show interface name for the entry if we show
+ * entries for all interfaces */
+ if (ifindex <= 0) {
+ char name[IF_NAMESIZE+1];
+
+ if (if_indextoname(local[i].ifindex, name)) {
+ fputs(" on ", stdout);
+ fputs(name, stdout);
+ } else
+ printf(" on %%%i", local[i].ifindex);
+ }
+
+ fputc('\n', stdout);
+ }
+
+ return 0;
+}
+
+static int dump_addresses(
+ sd_netlink *rtnl,
+ const char *prefix,
+ int ifindex) {
+
+ _cleanup_free_ struct local_address *local = NULL;
+ int r, n, i;
+
+ assert(rtnl);
+ assert(prefix);
+
+ n = local_addresses(rtnl, ifindex, AF_UNSPEC, &local);
+ if (n < 0)
+ return n;
+
+ for (i = 0; i < n; i++) {
+ _cleanup_free_ char *pretty = NULL;
+
+ r = in_addr_to_string(local[i].family, &local[i].address, &pretty);
+ if (r < 0)
+ return r;
+
+ printf("%*s%s",
+ (int) strlen(prefix),
+ i == 0 ? prefix : "",
+ pretty);
+
+ if (ifindex <= 0) {
+ char name[IF_NAMESIZE+1];
+
+ if (if_indextoname(local[i].ifindex, name)) {
+ fputs(" on ", stdout);
+ fputs(name, stdout);
+ } else
+ printf(" on %%%i", local[i].ifindex);
+ }
+
+ fputc('\n', stdout);
+ }
+
+ return 0;
+}
+
+static int dump_address_labels(sd_netlink *rtnl) {
+ _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
+ sd_netlink_message *m;
+ int r;
+
+ assert(rtnl);
+
+ r = sd_rtnl_message_new_addrlabel(rtnl, &req, RTM_GETADDRLABEL, 0, AF_INET6);
+ if (r < 0)
+ return log_error_errno(r, "Could not allocate RTM_GETADDRLABEL message: %m");
+
+ r = sd_netlink_message_request_dump(req, true);
+ if (r < 0)
+ return r;
+
+ r = sd_netlink_call(rtnl, req, 0, &reply);
+ if (r < 0)
+ return r;
+
+ printf("%10s/%s %30s\n", "Prefix", "Prefixlen", "Label");
+
+ for (m = reply; m; m = sd_netlink_message_next(m)) {
+ _cleanup_free_ char *pretty = NULL;
+ union in_addr_union prefix = {};
+ uint8_t prefixlen;
+ uint32_t label;
+
+ r = sd_netlink_message_get_errno(m);
+ if (r < 0) {
+ log_error_errno(r, "got error: %m");
+ continue;
+ }
+
+ r = sd_netlink_message_read_u32(m, IFAL_LABEL, &label);
+ if (r < 0 && r != -ENODATA) {
+ log_error_errno(r, "Could not read IFAL_LABEL, ignoring: %m");
+ continue;
+ }
+
+ r = sd_netlink_message_read_in6_addr(m, IFAL_ADDRESS, &prefix.in6);
+ if (r < 0)
+ continue;
+
+ r = in_addr_to_string(AF_INET6, &prefix, &pretty);
+ if (r < 0)
+ continue;
+
+ r = sd_rtnl_message_addrlabel_get_prefixlen(m, &prefixlen);
+ if (r < 0)
+ continue;
+
+ printf("%10s/%-5u %30u\n", pretty, prefixlen, label);
+ }
+
+ return 0;
+}
+
+static int list_address_labels(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ int r;
+
+ r = sd_netlink_open(&rtnl);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to netlink: %m");
+
+ dump_address_labels(rtnl);
+
+ return 0;
+}
+
+static int open_lldp_neighbors(int ifindex, FILE **ret) {
+ _cleanup_free_ char *p = NULL;
+ FILE *f;
+
+ if (asprintf(&p, "/run/systemd/netif/lldp/%i", ifindex) < 0)
+ return -ENOMEM;
+
+ f = fopen(p, "re");
+ if (!f)
+ return -errno;
+
+ *ret = f;
+ return 0;
+}
+
+static int next_lldp_neighbor(FILE *f, sd_lldp_neighbor **ret) {
+ _cleanup_free_ void *raw = NULL;
+ size_t l;
+ le64_t u;
+ int r;
+
+ assert(f);
+ assert(ret);
+
+ l = fread(&u, 1, sizeof(u), f);
+ if (l == 0 && feof(f))
+ return 0;
+ if (l != sizeof(u))
+ return -EBADMSG;
+
+ /* each LLDP packet is at most MTU size, but let's allow up to 4KiB just in case */
+ if (le64toh(u) >= 4096)
+ return -EBADMSG;
+
+ raw = new(uint8_t, le64toh(u));
+ if (!raw)
+ return -ENOMEM;
+
+ if (fread(raw, 1, le64toh(u), f) != le64toh(u))
+ return -EBADMSG;
+
+ r = sd_lldp_neighbor_from_raw(ret, raw, le64toh(u));
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
+static int dump_lldp_neighbors(const char *prefix, int ifindex) {
+ _cleanup_fclose_ FILE *f = NULL;
+ int r, c = 0;
+
+ assert(prefix);
+ assert(ifindex > 0);
+
+ r = open_lldp_neighbors(ifindex, &f);
+ if (r < 0)
+ return r;
+
+ for (;;) {
+ const char *system_name = NULL, *port_id = NULL, *port_description = NULL;
+ _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
+
+ r = next_lldp_neighbor(f, &n);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ printf("%*s",
+ (int) strlen(prefix),
+ c == 0 ? prefix : "");
+
+ (void) sd_lldp_neighbor_get_system_name(n, &system_name);
+ (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
+ (void) sd_lldp_neighbor_get_port_description(n, &port_description);
+
+ printf("%s on port %s", strna(system_name), strna(port_id));
+
+ if (!isempty(port_description))
+ printf(" (%s)", port_description);
+
+ putchar('\n');
+
+ c++;
+ }
+
+ return c;
+}
+
+static void dump_ifindexes(const char *prefix, const int *ifindexes) {
+ unsigned c;
+
+ assert(prefix);
+
+ if (!ifindexes || ifindexes[0] <= 0)
+ return;
+
+ for (c = 0; ifindexes[c] > 0; c++) {
+ char name[IF_NAMESIZE+1];
+
+ printf("%*s",
+ (int) strlen(prefix),
+ c == 0 ? prefix : "");
+
+ if (if_indextoname(ifindexes[c], name))
+ fputs(name, stdout);
+ else
+ printf("%i", ifindexes[c]);
+
+ fputc('\n', stdout);
+ }
+}
+
+static void dump_list(const char *prefix, char **l) {
+ char **i;
+
+ if (strv_isempty(l))
+ return;
+
+ STRV_FOREACH(i, l) {
+ printf("%*s%s\n",
+ (int) strlen(prefix),
+ i == l ? prefix : "",
+ *i);
+ }
+}
+
+static int link_status_one(
+ sd_netlink *rtnl,
+ sd_hwdb *hwdb,
+ const LinkInfo *info) {
+
+ _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
+ _cleanup_free_ char *setup_state = NULL, *operational_state = NULL, *tz = NULL;
+ _cleanup_(sd_device_unrefp) sd_device *d = 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;
+ const char *on_color_operational, *off_color_operational,
+ *on_color_setup, *off_color_setup;
+ _cleanup_free_ int *carrier_bound_to = NULL, *carrier_bound_by = NULL;
+ int r;
+
+ assert(rtnl);
+ assert(info);
+
+ (void) sd_network_link_get_operational_state(info->ifindex, &operational_state);
+ operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
+
+ r = sd_network_link_get_setup_state(info->ifindex, &setup_state);
+ if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */
+ setup_state = strdup("unmanaged");
+ setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
+
+ (void) sd_network_link_get_dns(info->ifindex, &dns);
+ (void) sd_network_link_get_search_domains(info->ifindex, &search_domains);
+ (void) sd_network_link_get_route_domains(info->ifindex, &route_domains);
+ (void) sd_network_link_get_ntp(info->ifindex, &ntp);
+
+ xsprintf(devid, "n%i", info->ifindex);
+
+ (void) sd_device_new_from_device_id(&d, devid);
+
+ if (d) {
+ (void) sd_device_get_property_value(d, "ID_NET_LINK_FILE", &link);
+ (void) sd_device_get_property_value(d, "ID_NET_DRIVER", &driver);
+ (void) sd_device_get_property_value(d, "ID_PATH", &path);
+
+ if (sd_device_get_property_value(d, "ID_VENDOR_FROM_DATABASE", &vendor) < 0)
+ (void) sd_device_get_property_value(d, "ID_VENDOR", &vendor);
+
+ if (sd_device_get_property_value(d, "ID_MODEL_FROM_DATABASE", &model) < 0)
+ (void) sd_device_get_property_value(d, "ID_MODEL", &model);
+ }
+
+ t = link_get_type_string(info->iftype, d);
+
+ (void) sd_network_link_get_network_file(info->ifindex, &network);
+
+ (void) sd_network_link_get_carrier_bound_to(info->ifindex, &carrier_bound_to);
+ (void) sd_network_link_get_carrier_bound_by(info->ifindex, &carrier_bound_by);
+
+ printf("%s%s%s %i: %s\n", on_color_operational, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off_color_operational, info->ifindex, info->name);
+
+ printf(" Link File: %s\n"
+ " Network File: %s\n"
+ " Type: %s\n"
+ " State: %s%s%s (%s%s%s)\n",
+ strna(link),
+ strna(network),
+ strna(t),
+ on_color_operational, strna(operational_state), off_color_operational,
+ on_color_setup, strna(setup_state), off_color_setup);
+
+ if (path)
+ printf(" Path: %s\n", path);
+ if (driver)
+ printf(" Driver: %s\n", driver);
+ if (vendor)
+ printf(" Vendor: %s\n", vendor);
+ if (model)
+ printf(" Model: %s\n", model);
+
+ if (info->has_mac_address) {
+ _cleanup_free_ char *description = NULL;
+ char ea[ETHER_ADDR_TO_STRING_MAX];
+
+ (void) ieee_oui(hwdb, &info->mac_address, &description);
+
+ if (description)
+ printf(" HW Address: %s (%s)\n", ether_addr_to_string(&info->mac_address, ea), description);
+ else
+ printf(" HW Address: %s\n", ether_addr_to_string(&info->mac_address, ea));
+ }
+
+ if (info->has_mtu)
+ printf(" MTU: %" PRIu32 "\n", info->mtu);
+
+ (void) dump_addresses(rtnl, " Address: ", info->ifindex);
+ (void) dump_gateways(rtnl, hwdb, " Gateway: ", info->ifindex);
+
+ dump_list(" DNS: ", dns);
+ dump_list(" Search Domains: ", search_domains);
+ dump_list(" Route Domains: ", route_domains);
+
+ dump_list(" NTP: ", ntp);
+
+ dump_ifindexes("Carrier Bound To: ", carrier_bound_to);
+ dump_ifindexes("Carrier Bound By: ", carrier_bound_by);
+
+ (void) sd_network_link_get_timezone(info->ifindex, &tz);
+ if (tz)
+ printf(" Time Zone: %s\n", tz);
+
+ (void) dump_lldp_neighbors(" Connected To: ", info->ifindex);
+
+ return 0;
+}
+
+static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) {
+ _cleanup_free_ char *operational_state = NULL;
+ _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
+ const char *on_color_operational, *off_color_operational;
+
+ assert(rtnl);
+
+ (void) sd_network_get_operational_state(&operational_state);
+ operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
+
+ printf("%s%s%s State: %s%s%s\n",
+ on_color_operational, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off_color_operational,
+ on_color_operational, strna(operational_state), off_color_operational);
+
+ (void) dump_addresses(rtnl, " Address: ", 0);
+ (void) dump_gateways(rtnl, hwdb, " Gateway: ", 0);
+
+ (void) sd_network_get_dns(&dns);
+ dump_list(" DNS: ", dns);
+
+ (void) sd_network_get_search_domains(&search_domains);
+ dump_list("Search Domains: ", search_domains);
+
+ (void) sd_network_get_route_domains(&route_domains);
+ dump_list(" Route Domains: ", route_domains);
+
+ (void) sd_network_get_ntp(&ntp);
+ dump_list(" NTP: ", ntp);
+
+ return 0;
+}
+
+static int link_status(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
+ _cleanup_free_ LinkInfo *links = NULL;
+ int r, c, i;
+
+ (void) pager_open(arg_pager_flags);
+
+ r = sd_netlink_open(&rtnl);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to netlink: %m");
+
+ r = sd_hwdb_new(&hwdb);
+ if (r < 0)
+ log_debug_errno(r, "Failed to open hardware database: %m");
+
+ if (arg_all)
+ c = acquire_link_info_all(rtnl, &links);
+ else if (argc <= 1)
+ return system_status(rtnl, hwdb);
+ else
+ c = acquire_link_info_strv(rtnl, argv + 1, &links);
+ if (c < 0)
+ return c;
+
+ for (i = 0; i < c; i++) {
+ if (i > 0)
+ fputc('\n', stdout);
+
+ link_status_one(rtnl, hwdb, links + i);
+ }
+
+ return 0;
+}
+
+static char *lldp_capabilities_to_string(uint16_t x) {
+ static const char characters[] = {
+ 'o', 'p', 'b', 'w', 'r', 't', 'd', 'a', 'c', 's', 'm',
+ };
+ char *ret;
+ unsigned i;
+
+ ret = new(char, ELEMENTSOF(characters) + 1);
+ if (!ret)
+ return NULL;
+
+ for (i = 0; i < ELEMENTSOF(characters); i++)
+ ret[i] = (x & (1U << i)) ? characters[i] : '.';
+
+ ret[i] = 0;
+ return ret;
+}
+
+static void lldp_capabilities_legend(uint16_t x) {
+ unsigned w, i, cols = columns();
+ static const char* const table[] = {
+ "o - Other",
+ "p - Repeater",
+ "b - Bridge",
+ "w - WLAN Access Point",
+ "r - Router",
+ "t - Telephone",
+ "d - DOCSIS cable device",
+ "a - Station",
+ "c - Customer VLAN",
+ "s - Service VLAN",
+ "m - Two-port MAC Relay (TPMR)",
+ };
+
+ if (x == 0)
+ return;
+
+ printf("\nCapability Flags:\n");
+ for (w = 0, i = 0; i < ELEMENTSOF(table); i++)
+ if (x & (1U << i) || arg_all) {
+ bool newline;
+
+ newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols;
+ if (newline)
+ w = 0;
+ w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]);
+ }
+ puts("");
+}
+
+static int link_lldp_status(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
+ _cleanup_free_ LinkInfo *links = NULL;
+ int i, r, c, m = 0;
+ uint16_t all = 0;
+
+ r = sd_netlink_open(&rtnl);
+ if (r < 0)
+ return log_error_errno(r, "Failed to connect to netlink: %m");
+
+ if (argc > 1)
+ c = acquire_link_info_strv(rtnl, argv + 1, &links);
+ else
+ c = acquire_link_info_all(rtnl, &links);
+ if (c < 0)
+ return c;
+
+ (void) pager_open(arg_pager_flags);
+
+ if (arg_legend)
+ printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
+ "LINK",
+ "CHASSIS ID",
+ "SYSTEM NAME",
+ "CAPS",
+ "PORT ID",
+ "PORT DESCRIPTION");
+
+ for (i = 0; i < c; i++) {
+ _cleanup_fclose_ FILE *f = NULL;
+
+ r = open_lldp_neighbors(links[i].ifindex, &f);
+ if (r == -ENOENT)
+ continue;
+ if (r < 0) {
+ log_warning_errno(r, "Failed to open LLDP data for %i, ignoring: %m", links[i].ifindex);
+ continue;
+ }
+
+ for (;;) {
+ _cleanup_free_ char *cid = NULL, *pid = NULL, *sname = NULL, *pdesc = NULL;
+ const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = NULL, *capabilities = NULL;
+ _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
+ uint16_t cc;
+
+ r = next_lldp_neighbor(f, &n);
+ if (r < 0) {
+ log_warning_errno(r, "Failed to read neighbor data: %m");
+ break;
+ }
+ if (r == 0)
+ break;
+
+ (void) sd_lldp_neighbor_get_chassis_id_as_string(n, &chassis_id);
+ (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
+ (void) sd_lldp_neighbor_get_system_name(n, &system_name);
+ (void) sd_lldp_neighbor_get_port_description(n, &port_description);
+
+ if (chassis_id) {
+ cid = ellipsize(chassis_id, 17, 100);
+ if (cid)
+ chassis_id = cid;
+ }
+
+ if (port_id) {
+ pid = ellipsize(port_id, 17, 100);
+ if (pid)
+ port_id = pid;
+ }
+
+ if (system_name) {
+ sname = ellipsize(system_name, 16, 100);
+ if (sname)
+ system_name = sname;
+ }
+
+ if (port_description) {
+ pdesc = ellipsize(port_description, 16, 100);
+ if (pdesc)
+ port_description = pdesc;
+ }
+
+ if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) {
+ capabilities = lldp_capabilities_to_string(cc);
+ all |= cc;
+ }
+
+ printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
+ links[i].name,
+ strna(chassis_id),
+ strna(system_name),
+ strna(capabilities),
+ strna(port_id),
+ strna(port_description));
+
+ m++;
+ }
+ }
+
+ if (arg_legend) {
+ lldp_capabilities_legend(all);
+ printf("\n%i neighbors listed.\n", m);
+ }
+
+ return 0;
+}
+
+static int help(void) {
+ _cleanup_free_ char *link = NULL;
+ int r;
+
+ r = terminal_urlify_man("networkctl", "1", &link);
+ if (r < 0)
+ return log_oom();
+
+ printf("%s [OPTIONS...]\n\n"
+ "Query and control the networking subsystem.\n\n"
+ " -h --help Show this help\n"
+ " --version Show package version\n"
+ " --no-pager Do not pipe output into a pager\n"
+ " --no-legend Do not show the headers and footers\n"
+ " -a --all Show status for all links\n\n"
+ "Commands:\n"
+ " list [LINK...] List links\n"
+ " status [LINK...] Show link status\n"
+ " lldp [LINK...] Show LLDP neighbors\n"
+ " label Show current address label entries in the kernel\n"
+ "\nSee the %s for details.\n"
+ , program_invocation_short_name
+ , link
+ );
+
+ return 0;
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+ enum {
+ ARG_VERSION = 0x100,
+ ARG_NO_PAGER,
+ ARG_NO_LEGEND,
+ };
+
+ static const struct option options[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, ARG_VERSION },
+ { "no-pager", no_argument, NULL, ARG_NO_PAGER },
+ { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
+ { "all", no_argument, NULL, 'a' },
+ {}
+ };
+
+ int c;
+
+ assert(argc >= 0);
+ assert(argv);
+
+ while ((c = getopt_long(argc, argv, "ha", options, NULL)) >= 0) {
+
+ switch (c) {
+
+ case 'h':
+ return help();
+
+ case ARG_VERSION:
+ return version();
+
+ case ARG_NO_PAGER:
+ arg_pager_flags |= PAGER_DISABLE;
+ break;
+
+ case ARG_NO_LEGEND:
+ arg_legend = false;
+ break;
+
+ case 'a':
+ arg_all = true;
+ break;
+
+ case '?':
+ return -EINVAL;
+
+ default:
+ assert_not_reached("Unhandled option");
+ }
+ }
+
+ return 1;
+}
+
+static int networkctl_main(int argc, char *argv[]) {
+ static const Verb verbs[] = {
+ { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT, list_links },
+ { "status", VERB_ANY, VERB_ANY, 0, link_status },
+ { "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status },
+ { "label", VERB_ANY, VERB_ANY, 0, list_address_labels },
+ {}
+ };
+
+ return dispatch_verb(argc, argv, verbs, NULL);
+}
+
+static void warn_networkd_missing(void) {
+
+ if (access("/run/systemd/netif/state", F_OK) >= 0)
+ return;
+
+ fprintf(stderr, "WARNING: systemd-networkd is not running, output will be incomplete.\n\n");
+}
+
+static int run(int argc, char* argv[]) {
+ int r;
+
+ log_parse_environment();
+ log_open();
+
+ r = parse_argv(argc, argv);
+ if (r <= 0)
+ return r;
+
+ warn_networkd_missing();
+
+ return networkctl_main(argc, argv);
+}
+
+DEFINE_MAIN_FUNCTION(run);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 17:13:02 +0000