/* SPDX-License-Identifier: LGPL-2.1+ */ #include #include #include #include #include #include #include #include "sd-bus.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 "bus-common-errors.h" #include "bus-error.h" #include "bus-util.h" #include "device-util.h" #include "ether-addr-util.h" #include "ethtool-util.h" #include "fd-util.h" #include "format-table.h" #include "format-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 "set.h" #include "socket-util.h" #include "sort-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 "verbs.h" static PagerFlags arg_pager_flags = 0; static bool arg_legend = true; static bool arg_all = false; static bool arg_stats = 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 (STRPTR_IN_SET(state, "routable", "enslaved")) { *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; uint32_t min_mtu; uint32_t max_mtu; uint32_t tx_queues; uint32_t rx_queues; union { struct rtnl_link_stats64 stats64; struct rtnl_link_stats stats; }; uint64_t tx_bitrate; uint64_t rx_bitrate; /* ethtool info */ int autonegotiation; size_t speed; Duplex duplex; NetDevPort port; bool has_mac_address:1; bool has_tx_queues:1; bool has_rx_queues:1; bool has_stats64:1; bool has_stats:1; bool has_bitrates:1; bool has_ethtool_link_info: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, char **patterns) { const char *name; uint16_t type; int ifindex, 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, &ifindex); if (r < 0) return r; r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name); if (r < 0) return r; if (patterns) { char str[DECIMAL_STR_MAX(int)]; xsprintf(str, "%i", ifindex); if (!strv_fnmatch(patterns, str, 0) && !strv_fnmatch(patterns, name, 0)) return 0; } r = sd_rtnl_message_link_get_type(m, &info->iftype); if (r < 0) return r; strscpy(info->name, sizeof info->name, name); info->ifindex = ifindex; info->has_mac_address = sd_netlink_message_read_ether_addr(m, IFLA_ADDRESS, &info->mac_address) >= 0 && memcmp(&info->mac_address, ÐER_ADDR_NULL, sizeof(struct ether_addr)) != 0; (void) sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu); (void) sd_netlink_message_read_u32(m, IFLA_MIN_MTU, &info->min_mtu); (void) sd_netlink_message_read_u32(m, IFLA_MAX_MTU, &info->max_mtu); info->has_rx_queues = sd_netlink_message_read_u32(m, IFLA_NUM_RX_QUEUES, &info->rx_queues) >= 0 && info->rx_queues > 0; info->has_tx_queues = sd_netlink_message_read_u32(m, IFLA_NUM_TX_QUEUES, &info->tx_queues) >= 0 && info->tx_queues > 0; if (sd_netlink_message_read(m, IFLA_STATS64, sizeof info->stats64, &info->stats64) >= 0) info->has_stats64 = true; else if (sd_netlink_message_read(m, IFLA_STATS, sizeof info->stats, &info->stats) >= 0) info->has_stats = true; return 1; } static int acquire_link_bitrates(sd_bus *bus, LinkInfo *link) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_free_ char *path = NULL, *ifindex_str = NULL; int r; if (asprintf(&ifindex_str, "%i", link->ifindex) < 0) return -ENOMEM; r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex_str, &path); if (r < 0) return r; r = sd_bus_call_method( bus, "org.freedesktop.network1", path, "org.freedesktop.DBus.Properties", "Get", &error, &reply, "ss", "org.freedesktop.network1.Link", "BitRates"); if (r < 0) { bool quiet = sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY) || sd_bus_error_has_name(&error, BUS_ERROR_SPEED_METER_INACTIVE); return log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING, r, "Failed to query link bit rates: %s", bus_error_message(&error, r)); } r = sd_bus_message_enter_container(reply, 'v', "(tt)"); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read(reply, "(tt)", &link->tx_bitrate, &link->rx_bitrate); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); link->has_bitrates = true; return 0; } static int acquire_link_info(sd_bus *bus, sd_netlink *rtnl, char **patterns, LinkInfo **ret) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; _cleanup_free_ LinkInfo *links = NULL; _cleanup_close_ int fd = -1; size_t allocated = 0, c = 0, j; 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_REALLOC0(links, allocated, c+1)) return -ENOMEM; r = decode_link(i, links + c, patterns); if (r < 0) return r; if (r == 0) continue; r = ethtool_get_link_info(&fd, links[c].name, &links[c].autonegotiation, &links[c].speed, &links[c].duplex, &links[c].port); if (r >= 0) links[c].has_ethtool_link_info = true; c++; } typesafe_qsort(links, c, link_info_compare); if (bus) for (j = 0; j < c; j++) (void) acquire_link_bitrates(bus, links + j); *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; _cleanup_(table_unrefp) Table *table = NULL; TableCell *cell; int c, i, r; r = sd_netlink_open(&rtnl); if (r < 0) return log_error_errno(r, "Failed to connect to netlink: %m"); c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links); if (c < 0) return c; (void) pager_open(arg_pager_flags); table = table_new("IDX", "LINK", "TYPE", "OPERATIONAL", "SETUP"); if (!table) return log_oom(); table_set_header(table, arg_legend); assert_se(cell = table_get_cell(table, 0, 0)); (void) table_set_minimum_width(table, cell, 3); (void) table_set_weight(table, cell, 0); (void) table_set_ellipsize_percent(table, cell, 100); (void) table_set_align_percent(table, cell, 100); assert_se(cell = table_get_cell(table, 0, 1)); (void) table_set_ellipsize_percent(table, cell, 100); 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); r = table_add_cell(table, NULL, TABLE_INT, &links[i].ifindex); if (r < 0) return r; r = table_add_many(table, TABLE_STRING, links[i].name, TABLE_STRING, strna(t)); if (r < 0) return r; r = table_add_cell(table, &cell, TABLE_STRING, strna(operational_state)); if (r < 0) return r; (void) table_set_color(table, cell, on_color_operational); r = table_add_cell(table, &cell, TABLE_STRING, strna(setup_state)); if (r < 0) return r; (void) table_set_color(table, cell, on_color_setup); } r = table_print(table, NULL); if (r < 0) return log_error_errno(r, "Failed to print table: %m"); 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 = IN_ADDR_NULL; struct ether_addr mac = ETHER_ADDR_NULL; 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(m, NDA_LLADDR, sizeof(mac), &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, Table *table, int ifindex) { _cleanup_free_ struct local_address *local = NULL; int r, n, i; assert(rtnl); assert(table); 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, *with_description = NULL; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, i == 0 ? "Gateway:" : ""); if (r < 0) return r; 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"); if (description) { with_description = strjoin(gateway, " (", description, ")"); if (!with_description) return -ENOMEM; } /* Show interface name for the entry if we show * entries for all interfaces */ if (ifindex <= 0) { char name[IF_NAMESIZE+1]; if (format_ifname(local[i].ifindex, name)) r = table_add_cell_stringf(table, NULL, "%s on %s", with_description ?: gateway, name); else r = table_add_cell_stringf(table, NULL, "%s on %%%i", with_description ?: gateway, local[i].ifindex); } else r = table_add_cell(table, NULL, TABLE_STRING, with_description ?: gateway); if (r < 0) return r; } return 0; } static int dump_addresses( sd_netlink *rtnl, Table *table, int ifindex) { _cleanup_free_ struct local_address *local = NULL; int r, n, i; assert(rtnl); assert(table); 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 = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, i == 0 ? "Address:" : ""); if (r < 0) return r; r = in_addr_to_string(local[i].family, &local[i].address, &pretty); if (r < 0) return r; if (ifindex <= 0) { char name[IF_NAMESIZE+1]; if (format_ifname(local[i].ifindex, name)) r = table_add_cell_stringf(table, NULL, "%s on %s", pretty, name); else r = table_add_cell_stringf(table, NULL, "%s on %%%i", pretty, local[i].ifindex); } else r = table_add_cell(table, NULL, TABLE_STRING, pretty); if (r < 0) return r; } return 0; } static int dump_address_labels(sd_netlink *rtnl) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; _cleanup_(table_unrefp) Table *table = NULL; sd_netlink_message *m; TableCell *cell; 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; table = table_new("Label", "Prefix/Prefixlen"); if (!table) return -ENOMEM; r = table_set_sort(table, 0, SIZE_MAX); if (r < 0) return r; assert_se(cell = table_get_cell(table, 0, 0)); (void) table_set_align_percent(table, cell, 100); (void) table_set_ellipsize_percent(table, cell, 100); assert_se(cell = table_get_cell(table, 0, 1)); (void) table_set_align_percent(table, cell, 100); for (m = reply; m; m = sd_netlink_message_next(m)) { _cleanup_free_ char *pretty = NULL; union in_addr_union prefix = IN_ADDR_NULL; 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; r = table_add_cell(table, NULL, TABLE_UINT32, &label); if (r < 0) return r; r = table_add_cell_stringf(table, &cell, "%s/%u", pretty, prefixlen); if (r < 0) return r; } return table_print(table, NULL); } 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(Table *table, const char *prefix, int ifindex) { _cleanup_fclose_ FILE *f = NULL; int r, c = 0; assert(table); assert(prefix); assert(ifindex > 0); r = open_lldp_neighbors(ifindex, &f); if (r == -ENOENT) return 0; 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; _cleanup_free_ char *str = NULL; r = next_lldp_neighbor(f, &n); if (r < 0) return r; if (r == 0) break; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, c == 0 ? prefix : ""); if (r < 0) return r; (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); if (asprintf(&str, "%s on port %s%s%s%s", strna(system_name), strna(port_id), isempty(port_description) ? "" : " (", port_description, isempty(port_description) ? "" : ")") < 0) return -ENOMEM; r = table_add_cell(table, NULL, TABLE_STRING, str); if (r < 0) return r; c++; } return c; } static int dump_ifindexes(Table *table, const char *prefix, const int *ifindexes) { unsigned c; int r; assert(prefix); if (!ifindexes || ifindexes[0] <= 0) return 0; for (c = 0; ifindexes[c] > 0; c++) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, c == 0 ? prefix : ""); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_IFINDEX, ifindexes + c); if (r < 0) return r; } return 0; } static int dump_list(Table *table, const char *prefix, char **l) { char **i; int r; if (strv_isempty(l)) return 0; STRV_FOREACH(i, l) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, i == l ? prefix : ""); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, *i); if (r < 0) return r; } return 0; } #define DUMP_STATS_ONE(name, val_name) \ r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); \ if (r < 0) \ return r; \ r = table_add_cell(table, NULL, TABLE_STRING, name ":"); \ if (r < 0) \ return r; \ r = table_add_cell(table, NULL, info->has_stats64 ? TABLE_UINT64 : TABLE_UINT32, \ info->has_stats64 ? (void*) &info->stats64.val_name : (void*) &info->stats.val_name); \ if (r < 0) \ return r; static int dump_statistics(Table *table, const LinkInfo *info) { int r; if (!arg_stats) return 0; if (!info->has_stats64 && !info->has_stats) return 0; DUMP_STATS_ONE("Rx Packets", rx_packets); DUMP_STATS_ONE("Tx Packets", tx_packets); DUMP_STATS_ONE("Rx Bytes", rx_bytes); DUMP_STATS_ONE("Tx Bytes", tx_bytes); DUMP_STATS_ONE("Rx Errors", rx_errors); DUMP_STATS_ONE("Tx Errors", tx_errors); DUMP_STATS_ONE("Rx Dropped", rx_dropped); DUMP_STATS_ONE("Tx Dropped", tx_dropped); DUMP_STATS_ONE("Multicast Packets", multicast); DUMP_STATS_ONE("Collisions", collisions); return 0; } 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; _cleanup_(table_unrefp) Table *table = NULL; TableCell *cell; 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); table = table_new("DOT", "KEY", "VALUE"); if (!table) return -ENOMEM; assert_se(cell = table_get_cell(table, 0, 0)); (void) table_set_ellipsize_percent(table, cell, 100); assert_se(cell = table_get_cell(table, 0, 1)); (void) table_set_ellipsize_percent(table, cell, 100); table_set_header(table, false); r = table_add_cell(table, &cell, TABLE_STRING, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE)); if (r < 0) return r; (void) table_set_color(table, cell, on_color_operational); r = table_add_cell_stringf(table, &cell, "%i: %s", info->ifindex, info->name); if (r < 0) return r; (void) table_set_align_percent(table, cell, 0); r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, &cell, TABLE_STRING, "Link File:"); if (r < 0) return r; (void) table_set_align_percent(table, cell, 100); r = table_add_cell(table, NULL, TABLE_STRING, strna(link)); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Network File:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, strna(network)); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Type:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, strna(t)); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "State:"); if (r < 0) return r; r = table_add_cell_stringf(table, NULL, "%s%s%s (%s%s%s)", on_color_operational, strna(operational_state), off_color_operational, on_color_setup, strna(setup_state), off_color_setup); if (r < 0) return r; if (path) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Path:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, path); if (r < 0) return r; } if (driver) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Driver:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, driver); if (r < 0) return r; } if (vendor) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Vendor:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, vendor); if (r < 0) return r; } if (model) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Model:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, model); if (r < 0) return r; } 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); r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "HW Address:"); if (r < 0) return r; r = table_add_cell_stringf(table, NULL, "%s%s%s%s", ether_addr_to_string(&info->mac_address, ea), description ? " (" : "", strempty(description), description ? ")" : ""); if (r < 0) return r; } if (info->mtu > 0) { char min_str[DECIMAL_STR_MAX(uint32_t)], max_str[DECIMAL_STR_MAX(uint32_t)]; xsprintf(min_str, "%" PRIu32, info->min_mtu); xsprintf(max_str, "%" PRIu32, info->max_mtu); r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "MTU:"); if (r < 0) return r; r = table_add_cell_stringf(table, NULL, "%" PRIu32 "%s%s%s%s%s%s%s", info->mtu, info->min_mtu > 0 || info->max_mtu > 0 ? " (" : "", info->min_mtu > 0 ? "min: " : "", info->min_mtu > 0 ? min_str : "", info->min_mtu > 0 && info->max_mtu > 0 ? ", " : "", info->max_mtu > 0 ? "max: " : "", info->max_mtu > 0 ? max_str : "", info->min_mtu > 0 || info->max_mtu > 0 ? ")" : ""); if (r < 0) return r; } if (info->has_bitrates) { char tx[FORMAT_BYTES_MAX], rx[FORMAT_BYTES_MAX]; r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Bit Rate (Tx/Rx):"); if (r < 0) return r; r = table_add_cell_stringf(table, NULL, "%sbps/%sbps", format_bytes_full(tx, sizeof tx, info->tx_bitrate, 0), format_bytes_full(rx, sizeof rx, info->rx_bitrate, 0)); if (r < 0) return r; } if (info->has_tx_queues || info->has_rx_queues) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Queue Length (Tx/Rx):"); if (r < 0) return r; r = table_add_cell_stringf(table, NULL, "%" PRIu32 "/%" PRIu32, info->tx_queues, info->rx_queues); if (r < 0) return r; } if (info->has_ethtool_link_info) { const char *duplex = duplex_to_string(info->duplex); const char *port = port_to_string(info->port); if (IN_SET(info->autonegotiation, AUTONEG_DISABLE, AUTONEG_ENABLE)) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Auto negotiation:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_BOOLEAN, &info->autonegotiation); if (r < 0) return r; } if (info->speed > 0) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Speed:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_BPS, &info->speed); if (r < 0) return r; } if (duplex) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Duplex:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, duplex); if (r < 0) return r; } if (port) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Port:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, port); if (r < 0) return r; } } r = dump_addresses(rtnl, table, info->ifindex); if (r < 0) return r; r = dump_gateways(rtnl, hwdb, table, info->ifindex); if (r < 0) return r; r = dump_list(table, "DNS:", dns); if (r < 0) return r; r = dump_list(table, "Search Domains:", search_domains); if (r < 0) return r; r = dump_list(table, "Route Domains:", route_domains); if (r < 0) return r; r = dump_list(table, "NTP:", ntp); if (r < 0) return r; r = dump_ifindexes(table, "Carrier Bound To:", carrier_bound_to); if (r < 0) return r; r = dump_ifindexes(table, "Carrier Bound By:", carrier_bound_by); if (r < 0) return r; (void) sd_network_link_get_timezone(info->ifindex, &tz); if (tz) { r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, "Time Zone:"); if (r < 0) return r; r = table_add_cell(table, NULL, TABLE_STRING, tz); if (r < 0) return r; } r = dump_lldp_neighbors(table, "Connected To:", info->ifindex); if (r < 0) return r; r = dump_statistics(table, info); if (r < 0) return r; return table_print(table, NULL); } 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; _cleanup_(table_unrefp) Table *table = NULL; TableCell *cell; int r; assert(rtnl); (void) sd_network_get_operational_state(&operational_state); operational_state_to_color(operational_state, &on_color_operational, &off_color_operational); table = table_new("DOT", "KEY", "VALUE"); if (!table) return -ENOMEM; assert_se(cell = table_get_cell(table, 0, 0)); (void) table_set_ellipsize_percent(table, cell, 100); assert_se(cell = table_get_cell(table, 0, 1)); (void) table_set_align_percent(table, cell, 100); (void) table_set_ellipsize_percent(table, cell, 100); table_set_header(table, false); r = table_add_cell(table, &cell, TABLE_STRING, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE)); if (r < 0) return r; (void) table_set_color(table, cell, on_color_operational); r = table_add_cell(table, NULL, TABLE_STRING, "State:"); if (r < 0) return r; r = table_add_cell(table, &cell, TABLE_STRING, strna(operational_state)); if (r < 0) return r; (void) table_set_color(table, cell, on_color_operational); r = dump_addresses(rtnl, table, 0); if (r < 0) return r; r = dump_gateways(rtnl, hwdb, table, 0); if (r < 0) return r; (void) sd_network_get_dns(&dns); r = dump_list(table, "DNS:", dns); if (r < 0) return r; (void) sd_network_get_search_domains(&search_domains); r = dump_list(table, "Search Domains:", search_domains); if (r < 0) return r; (void) sd_network_get_route_domains(&route_domains); r = dump_list(table, "Route Domains:", route_domains); if (r < 0) return r; (void) sd_network_get_ntp(&ntp); r = dump_list(table, "NTP:", ntp); if (r < 0) return r; return table_print(table, NULL); } static int link_status(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _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_bus_open_system(&bus); if (r < 0) return log_error_errno(r, "Failed to connect system bus: %m"); 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(bus, rtnl, NULL, &links); else if (argc <= 1) return system_status(rtnl, hwdb); else c = acquire_link_info(bus, 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; _cleanup_(table_unrefp) Table *table = NULL; int i, r, c, m = 0; uint16_t all = 0; TableCell *cell; r = sd_netlink_open(&rtnl); if (r < 0) return log_error_errno(r, "Failed to connect to netlink: %m"); c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links); if (c < 0) return c; (void) pager_open(arg_pager_flags); table = table_new("LINK", "CHASSIS ID", "SYSTEM NAME", "CAPS", "PORT ID", "PORT DESCRIPTION"); if (!table) return -ENOMEM; table_set_header(table, arg_legend); assert_se(cell = table_get_cell(table, 0, 0)); table_set_minimum_width(table, cell, 16); assert_se(cell = table_get_cell(table, 0, 1)); table_set_minimum_width(table, cell, 17); assert_se(cell = table_get_cell(table, 0, 2)); table_set_minimum_width(table, cell, 16); assert_se(cell = table_get_cell(table, 0, 3)); table_set_minimum_width(table, cell, 11); assert_se(cell = table_get_cell(table, 0, 4)); table_set_minimum_width(table, cell, 17); assert_se(cell = table_get_cell(table, 0, 5)); table_set_minimum_width(table, cell, 16); 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, *capabilities = NULL; const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = 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; } r = table_add_many(table, TABLE_STRING, links[i].name, TABLE_STRING, strna(chassis_id), TABLE_STRING, strna(system_name), TABLE_STRING, strna(capabilities), TABLE_STRING, strna(port_id), TABLE_STRING, strna(port_description)); if (r < 0) return r; m++; } } r = table_print(table, NULL); if (r < 0) return r; if (arg_legend) { lldp_capabilities_legend(all); printf("\n%i neighbors listed.\n", m); } return 0; } static int link_delete_send_message(sd_netlink *rtnl, int index) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; int r; assert(rtnl); r = sd_rtnl_message_new_link(rtnl, &req, RTM_DELLINK, index); if (r < 0) return rtnl_log_create_error(r); r = sd_netlink_call(rtnl, req, 0, NULL); if (r < 0) return r; return 0; } static int link_delete(int argc, char *argv[], void *userdata) { _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; _cleanup_set_free_ Set *indexes = NULL; int index, r, i; Iterator j; void *p; r = sd_netlink_open(&rtnl); if (r < 0) return log_error_errno(r, "Failed to connect to netlink: %m"); indexes = set_new(NULL); if (!indexes) return log_oom(); for (i = 1; i < argc; i++) { r = parse_ifindex_or_ifname(argv[i], &index); if (r < 0) return log_error_errno(r, "Failed to resolve interface %s", argv[i]); r = set_put(indexes, INT_TO_PTR(index)); if (r < 0) return log_oom(); } SET_FOREACH(p, indexes, j) { r = link_delete_send_message(rtnl, PTR_TO_INT(p)); if (r < 0) { char ifname[IF_NAMESIZE + 1]; if (format_ifname(index, ifname)) return log_error_errno(r, "Failed to delete interface %s: %m", ifname); else return log_error_errno(r, "Failed to delete interface %d: %m", index); } } return r; } 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" " -s --stats Show detailed link statics\n" "\nCommands:\n" " list [PATTERN...] List links\n" " status [PATTERN...] Show link status\n" " lldp [PATTERN...] Show LLDP neighbors\n" " label Show current address label entries in the kernel\n" " delete DEVICES Delete virtual netdevs\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' }, { "stats", no_argument, NULL, 's' }, {} }; int c; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "has", 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 's': arg_stats = 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 }, { "delete", 2, VERB_ANY, 0, link_delete }, {} }; 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_show_color(true); 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);