/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include #include #include #include #include #include #include #include "sd-bus.h" #include "sd-device.h" #include "sd-dhcp-client.h" #include "sd-hwdb.h" #include "sd-lldp-rx.h" #include "sd-netlink.h" #include "sd-network.h" #include "alloc-util.h" #include "bond-util.h" #include "bridge-util.h" #include "build.h" #include "bus-common-errors.h" #include "bus-error.h" #include "bus-locator.h" #include "bus-wait-for-jobs.h" #include "conf-files.h" #include "device-util.h" #include "edit-util.h" #include "escape.h" #include "ether-addr-util.h" #include "ethtool-util.h" #include "fd-util.h" #include "format-table.h" #include "format-util.h" #include "fs-util.h" #include "geneve-util.h" #include "glob-util.h" #include "hwdb-util.h" #include "ipvlan-util.h" #include "local-addresses.h" #include "locale-util.h" #include "logs-show.h" #include "macro.h" #include "macvlan-util.h" #include "main-func.h" #include "netif-util.h" #include "netlink-util.h" #include "network-internal.h" #include "network-util.h" #include "pager.h" #include "parse-argument.h" #include "parse-util.h" #include "path-lookup.h" #include "path-util.h" #include "pretty-print.h" #include "set.h" #include "sigbus.h" #include "socket-netlink.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 "udev-util.h" #include "unit-def.h" #include "verbs.h" #include "virt.h" #include "wifi-util.h" /* Kernel defines MODULE_NAME_LEN as 64 - sizeof(unsigned long). So, 64 is enough. */ #define NETDEV_KIND_MAX 64 /* use 128 kB for receive socket kernel queue, we shouldn't need more here */ #define RCVBUF_SIZE (128*1024) static PagerFlags arg_pager_flags = 0; static bool arg_legend = true; static bool arg_no_reload = false; static bool arg_all = false; static bool arg_stats = false; static bool arg_full = false; static unsigned arg_lines = 10; static char *arg_drop_in = NULL; static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF; STATIC_DESTRUCTOR_REGISTER(arg_drop_in, freep); static int check_netns_match(sd_bus *bus) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; struct stat st; uint64_t id; int r; assert(bus); r = bus_get_property_trivial(bus, bus_network_mgr, "NamespaceId", &error, 't', &id); if (r < 0) { log_debug_errno(r, "Failed to query network namespace of networkd, ignoring: %s", bus_error_message(&error, r)); return 0; } if (id == 0) { log_debug("systemd-networkd.service not running in a network namespace (?), skipping netns check."); return 0; } if (stat("/proc/self/ns/net", &st) < 0) return log_error_errno(errno, "Failed to determine our own network namespace ID: %m"); if (id != st.st_ino) return log_error_errno(SYNTHETIC_ERRNO(EREMOTE), "networkctl must be invoked in same network namespace as systemd-networkd.service."); return 0; } static bool networkd_is_running(void) { static int cached = -1; int r; if (cached < 0) { r = access("/run/systemd/netif/state", F_OK); if (r < 0) { if (errno != ENOENT) log_debug_errno(errno, "Failed to determine whether networkd is running, assuming it's not: %m"); cached = false; } else cached = true; } return cached; } static int acquire_bus(sd_bus **ret) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; int r; assert(ret); r = sd_bus_open_system(&bus); if (r < 0) return log_error_errno(r, "Failed to connect to system bus: %m"); if (networkd_is_running()) { r = check_netns_match(bus); if (r < 0) return r; } else log_warning("systemd-networkd is not running, output might be incomplete."); *ret = TAKE_PTR(bus); return 0; } static int get_description(sd_bus *bus, JsonVariant **ret) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *text; int r; assert(bus); assert(ret); r = bus_call_method(bus, bus_network_mgr, "Describe", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Failed to get description: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "s", &text); if (r < 0) return bus_log_parse_error(r); r = json_parse(text, 0, ret, NULL, NULL); if (r < 0) return log_error_errno(r, "Failed to parse JSON: %m"); return 0; } static int dump_manager_description(sd_bus *bus) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; int r; assert(bus); r = get_description(bus, &v); if (r < 0) return r; json_variant_dump(v, arg_json_format_flags, NULL, NULL); return 0; } static int dump_link_description(sd_bus *bus, char * const *patterns) { _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; _cleanup_free_ bool *matched_patterns = NULL; JsonVariant *i; size_t c = 0; int r; assert(bus); assert(patterns); r = get_description(bus, &v); if (r < 0) return r; matched_patterns = new0(bool, strv_length(patterns)); if (!matched_patterns) return log_oom(); JSON_VARIANT_ARRAY_FOREACH(i, json_variant_by_key(v, "Interfaces")) { char ifindex_str[DECIMAL_STR_MAX(int64_t)]; const char *name; int64_t index; size_t pos; name = json_variant_string(json_variant_by_key(i, "Name")); index = json_variant_integer(json_variant_by_key(i, "Index")); xsprintf(ifindex_str, "%" PRIi64, index); if (!strv_fnmatch_full(patterns, ifindex_str, 0, &pos) && !strv_fnmatch_full(patterns, name, 0, &pos)) { bool match = false; JsonVariant *a; JSON_VARIANT_ARRAY_FOREACH(a, json_variant_by_key(i, "AlternativeNames")) if (strv_fnmatch_full(patterns, json_variant_string(a), 0, &pos)) { match = true; break; } if (!match) continue; } matched_patterns[pos] = true; json_variant_dump(i, arg_json_format_flags, NULL, NULL); c++; } /* Look if we matched all our arguments that are not globs. It is OK for a glob to match * nothing, but not for an exact argument. */ for (size_t pos = 0; pos < strv_length(patterns); pos++) { if (matched_patterns[pos]) continue; if (string_is_glob(patterns[pos])) log_debug("Pattern \"%s\" doesn't match any interface, ignoring.", patterns[pos]); else return log_error_errno(SYNTHETIC_ERRNO(ENODEV), "Interface \"%s\" not found.", patterns[pos]); } if (c == 0) log_warning("No interfaces matched."); return 0; } static void operational_state_to_color( const char *name, const char *state, const char **on, const char **off) { if (STRPTR_IN_SET(state, "routable", "enslaved") || (streq_ptr(name, "lo") && streq_ptr(state, "carrier"))) { if (on) *on = ansi_highlight_green(); if (off) *off = ansi_normal(); } else if (streq_ptr(state, "degraded")) { if (on) *on = ansi_highlight_yellow(); if (off) *off = ansi_normal(); } else { if (on) *on = ""; if (off) *off = ""; } } static void setup_state_to_color(const char *state, const char **on, const char **off) { if (streq_ptr(state, "configured")) { if (on) *on = ansi_highlight_green(); if (off) *off = ansi_normal(); } else if (streq_ptr(state, "configuring")) { if (on) *on = ansi_highlight_yellow(); if (off) *off = ansi_normal(); } else if (STRPTR_IN_SET(state, "failed", "linger")) { if (on) *on = ansi_highlight_red(); if (off) *off = ansi_normal(); } else { if (on) *on = ""; if (off) *off = ""; } } static void online_state_to_color(const char *state, const char **on, const char **off) { if (streq_ptr(state, "online")) { if (on) *on = ansi_highlight_green(); if (off) *off = ansi_normal(); } else if (streq_ptr(state, "partial")) { if (on) *on = ansi_highlight_yellow(); if (off) *off = ansi_normal(); } else { if (on) *on = ""; if (off) *off = ""; } } typedef struct VxLanInfo { uint32_t vni; uint32_t link; int local_family; int group_family; union in_addr_union local; union in_addr_union group; uint16_t dest_port; uint8_t proxy; uint8_t learning; uint8_t rsc; uint8_t l2miss; uint8_t l3miss; uint8_t tos; uint8_t ttl; } VxLanInfo; typedef struct LinkInfo { char name[IFNAMSIZ+1]; char *netdev_kind; sd_device *sd_device; int ifindex; unsigned short iftype; struct hw_addr_data hw_address; struct hw_addr_data permanent_hw_address; uint32_t master; uint32_t mtu; uint32_t min_mtu; uint32_t max_mtu; uint32_t tx_queues; uint32_t rx_queues; uint8_t addr_gen_mode; char *qdisc; char **alternative_names; union { struct rtnl_link_stats64 stats64; struct rtnl_link_stats stats; }; uint64_t tx_bitrate; uint64_t rx_bitrate; /* bridge info */ uint32_t forward_delay; uint32_t hello_time; uint32_t max_age; uint32_t ageing_time; uint32_t stp_state; uint32_t cost; uint16_t priority; uint8_t mcast_igmp_version; uint8_t port_state; /* vxlan info */ VxLanInfo vxlan_info; /* vlan info */ uint16_t vlan_id; /* tunnel info */ uint8_t ttl; uint8_t tos; uint8_t inherit; uint8_t df; uint8_t csum; uint8_t csum6_tx; uint8_t csum6_rx; uint16_t tunnel_port; uint32_t vni; uint32_t label; union in_addr_union local; union in_addr_union remote; /* bonding info */ uint8_t mode; uint32_t miimon; uint32_t updelay; uint32_t downdelay; /* macvlan and macvtap info */ uint32_t macvlan_mode; /* ipvlan info */ uint16_t ipvlan_mode; uint16_t ipvlan_flags; /* ethtool info */ int autonegotiation; uint64_t speed; Duplex duplex; NetDevPort port; /* wlan info */ enum nl80211_iftype wlan_iftype; char *ssid; struct ether_addr bssid; bool has_hw_address:1; bool has_permanent_hw_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; bool has_wlan_link_info:1; bool has_tunnel_ipv4:1; bool has_ipv6_address_generation_mode:1; bool needs_freeing:1; } LinkInfo; static int link_info_compare(const LinkInfo *a, const LinkInfo *b) { return CMP(a->ifindex, b->ifindex); } static LinkInfo* link_info_array_free(LinkInfo *array) { for (unsigned i = 0; array && array[i].needs_freeing; i++) { sd_device_unref(array[i].sd_device); free(array[i].netdev_kind); free(array[i].ssid); free(array[i].qdisc); strv_free(array[i].alternative_names); } return mfree(array); } DEFINE_TRIVIAL_CLEANUP_FUNC(LinkInfo*, link_info_array_free); static int decode_netdev(sd_netlink_message *m, LinkInfo *info) { int r; assert(m); assert(info); r = sd_netlink_message_enter_container(m, IFLA_LINKINFO); if (r < 0) return r; r = sd_netlink_message_read_string_strdup(m, IFLA_INFO_KIND, &info->netdev_kind); if (r < 0) { (void) sd_netlink_message_exit_container(m); return r; } r = sd_netlink_message_enter_container(m, IFLA_INFO_DATA); if (r < 0) return r; if (streq(info->netdev_kind, "bridge")) { (void) sd_netlink_message_read_u32(m, IFLA_BR_FORWARD_DELAY, &info->forward_delay); (void) sd_netlink_message_read_u32(m, IFLA_BR_HELLO_TIME, &info->hello_time); (void) sd_netlink_message_read_u32(m, IFLA_BR_MAX_AGE, &info->max_age); (void) sd_netlink_message_read_u32(m, IFLA_BR_AGEING_TIME, &info->ageing_time); (void) sd_netlink_message_read_u32(m, IFLA_BR_STP_STATE, &info->stp_state); (void) sd_netlink_message_read_u32(m, IFLA_BRPORT_COST, &info->cost); (void) sd_netlink_message_read_u16(m, IFLA_BR_PRIORITY, &info->priority); (void) sd_netlink_message_read_u8(m, IFLA_BR_MCAST_IGMP_VERSION, &info->mcast_igmp_version); (void) sd_netlink_message_read_u8(m, IFLA_BRPORT_STATE, &info->port_state); } if (streq(info->netdev_kind, "bond")) { (void) sd_netlink_message_read_u8(m, IFLA_BOND_MODE, &info->mode); (void) sd_netlink_message_read_u32(m, IFLA_BOND_MIIMON, &info->miimon); (void) sd_netlink_message_read_u32(m, IFLA_BOND_DOWNDELAY, &info->downdelay); (void) sd_netlink_message_read_u32(m, IFLA_BOND_UPDELAY, &info->updelay); } else if (streq(info->netdev_kind, "vxlan")) { (void) sd_netlink_message_read_u32(m, IFLA_VXLAN_ID, &info->vxlan_info.vni); r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_GROUP, &info->vxlan_info.group.in); if (r >= 0) info->vxlan_info.group_family = AF_INET; else { r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_GROUP6, &info->vxlan_info.group.in6); if (r >= 0) info->vxlan_info.group_family = AF_INET6; } r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_LOCAL, &info->vxlan_info.local.in); if (r >= 0) info->vxlan_info.local_family = AF_INET; else { r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_LOCAL6, &info->vxlan_info.local.in6); if (r >= 0) info->vxlan_info.local_family = AF_INET6; } (void) sd_netlink_message_read_u32(m, IFLA_VXLAN_LINK, &info->vxlan_info.link); (void) sd_netlink_message_read_u16(m, IFLA_VXLAN_PORT, &info->vxlan_info.dest_port); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_PROXY, &info->vxlan_info.proxy); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_LEARNING, &info->vxlan_info.learning); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_RSC, &info->vxlan_info.rsc); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L3MISS, &info->vxlan_info.l3miss); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L2MISS, &info->vxlan_info.l2miss); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TOS, &info->vxlan_info.tos); (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TTL, &info->vxlan_info.ttl); } else if (streq(info->netdev_kind, "vlan")) (void) sd_netlink_message_read_u16(m, IFLA_VLAN_ID, &info->vlan_id); else if (STR_IN_SET(info->netdev_kind, "ipip", "sit")) { (void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_LOCAL, &info->local.in); (void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_REMOTE, &info->remote.in); } else if (streq(info->netdev_kind, "geneve")) { (void) sd_netlink_message_read_u32(m, IFLA_GENEVE_ID, &info->vni); r = sd_netlink_message_read_in_addr(m, IFLA_GENEVE_REMOTE, &info->remote.in); if (r >= 0) info->has_tunnel_ipv4 = true; else (void) sd_netlink_message_read_in6_addr(m, IFLA_GENEVE_REMOTE6, &info->remote.in6); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL, &info->ttl); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL_INHERIT, &info->inherit); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TOS, &info->tos); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_DF, &info->df); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_CSUM, &info->csum); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, &info->csum6_tx); (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, &info->csum6_rx); (void) sd_netlink_message_read_u16(m, IFLA_GENEVE_PORT, &info->tunnel_port); (void) sd_netlink_message_read_u32(m, IFLA_GENEVE_LABEL, &info->label); } else if (STR_IN_SET(info->netdev_kind, "gre", "gretap", "erspan")) { (void) sd_netlink_message_read_in_addr(m, IFLA_GRE_LOCAL, &info->local.in); (void) sd_netlink_message_read_in_addr(m, IFLA_GRE_REMOTE, &info->remote.in); } else if (STR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan")) { (void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_LOCAL, &info->local.in6); (void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_REMOTE, &info->remote.in6); } else if (streq(info->netdev_kind, "vti")) { (void) sd_netlink_message_read_in_addr(m, IFLA_VTI_LOCAL, &info->local.in); (void) sd_netlink_message_read_in_addr(m, IFLA_VTI_REMOTE, &info->remote.in); } else if (streq(info->netdev_kind, "vti6")) { (void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_LOCAL, &info->local.in6); (void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_REMOTE, &info->remote.in6); } else if (STR_IN_SET(info->netdev_kind, "macvlan", "macvtap")) (void) sd_netlink_message_read_u32(m, IFLA_MACVLAN_MODE, &info->macvlan_mode); else if (streq(info->netdev_kind, "ipvlan")) { (void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_MODE, &info->ipvlan_mode); (void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_FLAGS, &info->ipvlan_flags); } (void) sd_netlink_message_exit_container(m); (void) sd_netlink_message_exit_container(m); return 0; } static int decode_link( sd_netlink_message *m, LinkInfo *info, char * const *patterns, bool matched_patterns[]) { _cleanup_strv_free_ char **altnames = NULL; const char *name, *qdisc; int ifindex, r; uint16_t type; 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; r = sd_netlink_message_read_strv(m, IFLA_PROP_LIST, IFLA_ALT_IFNAME, &altnames); if (r < 0 && r != -ENODATA) return r; if (patterns) { char str[DECIMAL_STR_MAX(int)]; size_t pos; assert(matched_patterns); xsprintf(str, "%i", ifindex); if (!strv_fnmatch_full(patterns, str, 0, &pos) && !strv_fnmatch_full(patterns, name, 0, &pos)) { bool match = false; STRV_FOREACH(p, altnames) if (strv_fnmatch_full(patterns, *p, 0, &pos)) { match = true; break; } if (!match) return 0; } matched_patterns[pos] = true; } 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->alternative_names = TAKE_PTR(altnames); info->has_hw_address = netlink_message_read_hw_addr(m, IFLA_ADDRESS, &info->hw_address) >= 0 && info->hw_address.length > 0; info->has_permanent_hw_address = (netlink_message_read_hw_addr(m, IFLA_PERM_ADDRESS, &info->permanent_hw_address) >= 0 || ethtool_get_permanent_hw_addr(NULL, info->name, &info->permanent_hw_address) >= 0) && !hw_addr_is_null(&info->permanent_hw_address) && !hw_addr_equal(&info->permanent_hw_address, &info->hw_address); (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; r = sd_netlink_message_read_string(m, IFLA_QDISC, &qdisc); if (r >= 0) { info->qdisc = strdup(qdisc); if (!info->qdisc) return log_oom(); } (void) sd_netlink_message_read_u32(m, IFLA_MASTER, &info->master); r = sd_netlink_message_enter_container(m, IFLA_AF_SPEC); if (r >= 0) { r = sd_netlink_message_enter_container(m, AF_INET6); if (r >= 0) { r = sd_netlink_message_read_u8(m, IFLA_INET6_ADDR_GEN_MODE, &info->addr_gen_mode); if (r >= 0 && IN_SET(info->addr_gen_mode, IN6_ADDR_GEN_MODE_EUI64, IN6_ADDR_GEN_MODE_NONE, IN6_ADDR_GEN_MODE_STABLE_PRIVACY, IN6_ADDR_GEN_MODE_RANDOM)) info->has_ipv6_address_generation_mode = true; (void) sd_netlink_message_exit_container(m); } (void) sd_netlink_message_exit_container(m); } /* fill kind info */ (void) decode_netdev(m, info); return 1; } static int link_get_property( sd_bus *bus, const LinkInfo *link, sd_bus_error *error, sd_bus_message **reply, const char *iface, const char *propname, const char *type) { _cleanup_free_ char *path = NULL; char ifindex_str[DECIMAL_STR_MAX(int)]; int r; assert(bus); assert(link); assert(link->ifindex >= 0); assert(error); assert(reply); assert(iface); assert(propname); assert(type); xsprintf(ifindex_str, "%i", link->ifindex); r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex_str, &path); if (r < 0) return r; return sd_bus_get_property(bus, "org.freedesktop.network1", path, iface, propname, error, reply, type); } 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; int r; assert(bus); assert(link); r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.Link", "BitRates", "(tt)"); if (r < 0) { bool quiet = sd_bus_error_has_names(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY, 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_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 = link->tx_bitrate != UINT64_MAX && link->rx_bitrate != UINT64_MAX; return 0; } static void acquire_ether_link_info(int *fd, LinkInfo *link) { assert(fd); assert(link); if (ethtool_get_link_info(fd, link->name, &link->autonegotiation, &link->speed, &link->duplex, &link->port) >= 0) link->has_ethtool_link_info = true; } static void acquire_wlan_link_info(LinkInfo *link) { _cleanup_(sd_netlink_unrefp) sd_netlink *genl = NULL; const char *type = NULL; int r, k = 0; assert(link); if (link->sd_device) (void) sd_device_get_devtype(link->sd_device, &type); if (!streq_ptr(type, "wlan")) return; r = sd_genl_socket_open(&genl); if (r < 0) { log_debug_errno(r, "Failed to open generic netlink socket: %m"); return; } (void) sd_netlink_increase_rxbuf(genl, RCVBUF_SIZE); r = wifi_get_interface(genl, link->ifindex, &link->wlan_iftype, &link->ssid); if (r < 0) log_debug_errno(r, "%s: failed to query ssid: %m", link->name); if (link->wlan_iftype == NL80211_IFTYPE_STATION) { k = wifi_get_station(genl, link->ifindex, &link->bssid); if (k < 0) log_debug_errno(k, "%s: failed to query bssid: %m", link->name); } link->has_wlan_link_info = r > 0 || k > 0; } static int acquire_link_info(sd_bus *bus, sd_netlink *rtnl, char * const *patterns, LinkInfo **ret) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; _cleanup_(link_info_array_freep) LinkInfo *links = NULL; _cleanup_free_ bool *matched_patterns = NULL; _cleanup_close_ int fd = -EBADF; size_t c = 0; 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_set_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"); if (patterns) { matched_patterns = new0(bool, strv_length(patterns)); if (!matched_patterns) return log_oom(); } for (sd_netlink_message *i = reply; i; i = sd_netlink_message_next(i)) { if (!GREEDY_REALLOC0(links, c + 2)) /* We keep one trailing one as marker */ return -ENOMEM; r = decode_link(i, links + c, patterns, matched_patterns); if (r < 0) return r; if (r == 0) continue; links[c].needs_freeing = true; (void) sd_device_new_from_ifindex(&links[c].sd_device, links[c].ifindex); acquire_ether_link_info(&fd, &links[c]); acquire_wlan_link_info(&links[c]); c++; } /* Look if we matched all our arguments that are not globs. It * is OK for a glob to match nothing, but not for an exact argument. */ for (size_t pos = 0; pos < strv_length(patterns); pos++) { if (matched_patterns[pos]) continue; if (string_is_glob(patterns[pos])) log_debug("Pattern \"%s\" doesn't match any interface, ignoring.", patterns[pos]); else return log_error_errno(SYNTHETIC_ERRNO(ENODEV), "Interface \"%s\" not found.", patterns[pos]); } typesafe_qsort(links, c, link_info_compare); if (bus) FOREACH_ARRAY(link, links, c) (void) acquire_link_bitrates(bus, link); *ret = TAKE_PTR(links); if (patterns && c == 0) log_warning("No interfaces matched."); return (int) c; } static int list_links(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_(link_info_array_freep) LinkInfo *links = NULL; _cleanup_(table_unrefp) Table *table = NULL; TableCell *cell; int c, r; r = acquire_bus(&bus); if (r < 0) return r; if (arg_json_format_flags != JSON_FORMAT_OFF) { if (arg_all || argc <= 1) return dump_manager_description(bus); else return dump_link_description(bus, strv_skip(argv, 1)); } 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; pager_open(arg_pager_flags); table = table_new("idx", "link", "type", "operational", "setup"); if (!table) return log_oom(); if (arg_full) table_set_width(table, 0); table_set_header(table, arg_legend); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); 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); FOREACH_ARRAY(link, links, c) { _cleanup_free_ char *setup_state = NULL, *operational_state = NULL; _cleanup_free_ char *t = NULL; const char *on_color_operational, *on_color_setup; (void) sd_network_link_get_operational_state(link->ifindex, &operational_state); operational_state_to_color(link->name, operational_state, &on_color_operational, NULL); (void) sd_network_link_get_setup_state(link->ifindex, &setup_state); setup_state_to_color(setup_state, &on_color_setup, NULL); r = net_get_type_string(link->sd_device, link->iftype, &t); if (r == -ENOMEM) return log_oom(); r = table_add_many(table, TABLE_INT, link->ifindex, TABLE_STRING, link->name, TABLE_STRING, t, TABLE_STRING, operational_state, TABLE_SET_COLOR, on_color_operational, TABLE_STRING, setup_state ?: "unmanaged", TABLE_SET_COLOR, on_color_setup); if (r < 0) return table_log_add_error(r); } r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); 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) { _cleanup_free_ char *desc = NULL; const char *description; char modalias[STRLEN("OUI:XXYYXXYYXXYY") + 1]; int r; assert(ret); if (!hwdb || !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 = TAKE_PTR(desc); return 0; } static int get_gateway_description( sd_netlink *rtnl, sd_hwdb *hwdb, int ifindex, int family, union in_addr_union *gateway, char **ret) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; int r; assert(rtnl); assert(ifindex >= 0); assert(IN_SET(family, AF_INET, AF_INET6)); assert(gateway); assert(ret); r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family); if (r < 0) return r; r = sd_netlink_message_set_request_dump(req, true); if (r < 0) return r; r = sd_netlink_call(rtnl, req, 0, &reply); if (r < 0) return r; for (sd_netlink_message *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, "Failed to get netlink message, ignoring: %m"); continue; } r = sd_netlink_message_get_type(m, &type); if (r < 0) { log_error_errno(r, "Failed to get netlink message type, ignoring: %m"); continue; } if (type != RTM_NEWNEIGH) { log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Got unexpected netlink message type %u, ignoring", type); continue; } r = sd_rtnl_message_neigh_get_family(m, &fam); if (r < 0) { log_error_errno(r, "Failed to get rtnl family, ignoring: %m"); continue; } if (fam != family) { log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Got invalid rtnl family %d, ignoring", fam); continue; } r = sd_rtnl_message_neigh_get_ifindex(m, &ifi); if (r < 0) { log_error_errno(r, "Failed to get rtnl ifindex, ignoring: %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, ret); if (r < 0) continue; return 0; } return -ENODATA; } static int dump_list(Table *table, const char *key, char * const *l) { int r; assert(table); assert(key); if (strv_isempty(l)) return 0; r = table_add_many(table, TABLE_FIELD, key, TABLE_STRV, l); if (r < 0) return table_log_add_error(r); return 0; } static int dump_gateways(sd_netlink *rtnl, sd_hwdb *hwdb, Table *table, int ifindex) { _cleanup_free_ struct local_address *local_addrs = NULL; _cleanup_strv_free_ char **buf = NULL; int r, n; assert(rtnl); assert(table); n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local_addrs); if (n <= 0) return n; FOREACH_ARRAY(local, local_addrs, n) { _cleanup_free_ char *description = NULL; r = get_gateway_description(rtnl, hwdb, local->ifindex, local->family, &local->address, &description); if (r < 0) log_debug_errno(r, "Could not get description of gateway, ignoring: %m"); /* Show interface name for the entry if we show entries for all interfaces */ r = strv_extendf(&buf, "%s%s%s%s%s%s", IN_ADDR_TO_STRING(local->family, &local->address), description ? " (" : "", strempty(description), description ? ")" : "", ifindex <= 0 ? " on " : "", ifindex <= 0 ? FORMAT_IFNAME_FULL(local->ifindex, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : ""); if (r < 0) return log_oom(); } return dump_list(table, "Gateway", buf); } static int dump_addresses( sd_netlink *rtnl, sd_dhcp_lease *lease, Table *table, int ifindex) { _cleanup_free_ struct local_address *local_addrs = NULL; _cleanup_strv_free_ char **buf = NULL; struct in_addr dhcp4_address = {}; int r, n; assert(rtnl); assert(table); n = local_addresses(rtnl, ifindex, AF_UNSPEC, &local_addrs); if (n <= 0) return n; if (lease) (void) sd_dhcp_lease_get_address(lease, &dhcp4_address); FOREACH_ARRAY(local, local_addrs, n) { struct in_addr server_address; bool dhcp4 = false; if (local->family == AF_INET && in4_addr_equal(&local->address.in, &dhcp4_address)) dhcp4 = sd_dhcp_lease_get_server_identifier(lease, &server_address) >= 0; r = strv_extendf(&buf, "%s%s%s%s%s%s", IN_ADDR_TO_STRING(local->family, &local->address), dhcp4 ? " (DHCP4 via " : "", dhcp4 ? IN4_ADDR_TO_STRING(&server_address) : "", dhcp4 ? ")" : "", ifindex <= 0 ? " on " : "", ifindex <= 0 ? FORMAT_IFNAME_FULL(local->ifindex, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : ""); if (r < 0) return log_oom(); } return dump_list(table, "Address", buf); } 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; 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_set_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 log_oom(); if (arg_full) table_set_width(table, 0); r = table_set_sort(table, (size_t) 0); 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 (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) { struct in6_addr prefix; uint8_t prefixlen; uint32_t label; r = sd_netlink_message_get_errno(m); if (r < 0) { log_error_errno(r, "Failed to get netlink message, ignoring: %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); 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 table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s/%u", IN6_ADDR_TO_STRING(&prefix), prefixlen); if (r < 0) return table_log_add_error(r); } r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); 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"); return dump_address_labels(rtnl); } static int open_lldp_neighbors(int ifindex, FILE **ret) { _cleanup_fclose_ FILE *f = NULL; char p[STRLEN("/run/systemd/netif/lldp/") + DECIMAL_STR_MAX(int)]; assert(ifindex >= 0); assert(ret); xsprintf(p, "/run/systemd/netif/lldp/%i", ifindex); f = fopen(p, "re"); if (!f) return -errno; *ret = TAKE_PTR(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_strv_free_ char **buf = NULL; _cleanup_fclose_ FILE *f = NULL; int r; 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; r = next_lldp_neighbor(f, &n); if (r < 0) return r; if (r == 0) break; (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); r = strv_extendf(&buf, "%s on port %s%s%s%s", strna(system_name), strna(port_id), isempty(port_description) ? "" : " (", strempty(port_description), isempty(port_description) ? "" : ")"); if (r < 0) return log_oom(); } return dump_list(table, prefix, buf); } static int dump_dhcp_leases(Table *table, const char *prefix, sd_bus *bus, const LinkInfo *link) { _cleanup_strv_free_ char **buf = NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(table); assert(prefix); assert(bus); assert(link); r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.DHCPServer", "Leases", "a(uayayayayt)"); if (r < 0) { bool quiet = sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY); log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING, r, "Failed to query link DHCP leases: %s", bus_error_message(&error, r)); return 0; } r = sd_bus_message_enter_container(reply, 'a', "(uayayayayt)"); if (r < 0) return bus_log_parse_error(r); while ((r = sd_bus_message_enter_container(reply, 'r', "uayayayayt")) > 0) { _cleanup_free_ char *id = NULL, *ip = NULL; const void *client_id, *addr, *gtw, *hwaddr; size_t client_id_sz, sz; uint64_t expiration; uint32_t family; r = sd_bus_message_read(reply, "u", &family); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_array(reply, 'y', &client_id, &client_id_sz); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_array(reply, 'y', &addr, &sz); if (r < 0 || sz != 4) return bus_log_parse_error(r); r = sd_bus_message_read_array(reply, 'y', >w, &sz); if (r < 0 || sz != 4) return bus_log_parse_error(r); r = sd_bus_message_read_array(reply, 'y', &hwaddr, &sz); if (r < 0) return bus_log_parse_error(r); r = sd_bus_message_read_basic(reply, 't', &expiration); if (r < 0) return bus_log_parse_error(r); r = sd_dhcp_client_id_to_string(client_id, client_id_sz, &id); if (r < 0) return bus_log_parse_error(r); r = in_addr_to_string(family, addr, &ip); if (r < 0) return bus_log_parse_error(r); r = strv_extendf(&buf, "%s (to %s)", ip, id); if (r < 0) return log_oom(); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); } 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); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); if (strv_isempty(buf)) { r = strv_extendf(&buf, "none"); if (r < 0) return log_oom(); } return dump_list(table, prefix, buf); } static int dump_ifindexes(Table *table, const char *prefix, const int *ifindexes) { int r; assert(table); assert(prefix); if (!ifindexes) return 0; for (unsigned c = 0; ifindexes[c] > 0; c++) { if (c == 0) r = table_add_cell(table, NULL, TABLE_FIELD, prefix); else r = table_add_cell(table, NULL, TABLE_EMPTY, NULL); if (r < 0) return table_log_add_error(r); r = table_add_cell(table, NULL, TABLE_IFINDEX, &ifindexes[c]); if (r < 0) return table_log_add_error(r); } return 0; } #define DUMP_STATS_ONE(name, val_name) \ ({ \ r = table_add_cell(table, NULL, TABLE_FIELD, name); \ if (r < 0) \ return table_log_add_error(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 table_log_add_error(r); \ }) static int dump_statistics(Table *table, const LinkInfo *info) { int r; assert(table); assert(info); 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 dump_hw_address(Table *table, sd_hwdb *hwdb, const char *field, const struct hw_addr_data *addr) { _cleanup_free_ char *description = NULL; int r; assert(table); assert(field); assert(addr); if (addr->length == ETH_ALEN) (void) ieee_oui(hwdb, &addr->ether, &description); r = table_add_cell(table, NULL, TABLE_FIELD, field); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s%s%s%s", HW_ADDR_TO_STR(addr), description ? " (" : "", strempty(description), description ? ")" : ""); if (r < 0) return table_log_add_error(r); return 0; } static OutputFlags get_output_flags(void) { return arg_all * OUTPUT_SHOW_ALL | (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH | colors_enabled() * OUTPUT_COLOR; } static int show_logs(const LinkInfo *info) { _cleanup_(sd_journal_closep) sd_journal *j = NULL; int r; if (arg_lines == 0) return 0; r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY); if (r < 0) return log_error_errno(r, "Failed to open journal: %m"); r = add_match_this_boot(j, NULL); if (r < 0) return log_error_errno(r, "Failed to add boot matches: %m"); if (info) { char m1[STRLEN("_KERNEL_DEVICE=n") + DECIMAL_STR_MAX(int)]; const char *m2, *m3; /* kernel */ xsprintf(m1, "_KERNEL_DEVICE=n%i", info->ifindex); /* networkd */ m2 = strjoina("INTERFACE=", info->name); /* udevd */ m3 = strjoina("DEVICE=", info->name); (void)( (r = sd_journal_add_match(j, m1, 0)) || (r = sd_journal_add_disjunction(j)) || (r = sd_journal_add_match(j, m2, 0)) || (r = sd_journal_add_disjunction(j)) || (r = sd_journal_add_match(j, m3, 0)) ); if (r < 0) return log_error_errno(r, "Failed to add link matches: %m"); } else { r = add_matches_for_unit(j, "systemd-networkd.service"); if (r < 0) return log_error_errno(r, "Failed to add unit matches: %m"); r = add_matches_for_unit(j, "systemd-networkd-wait-online.service"); if (r < 0) return log_error_errno(r, "Failed to add unit matches: %m"); } return show_journal( stdout, j, OUTPUT_SHORT, 0, 0, arg_lines, get_output_flags() | OUTPUT_BEGIN_NEWLINE, NULL); } static int table_add_string_line(Table *table, const char *key, const char *value) { int r; assert(table); assert(key); if (isempty(value)) return 0; r = table_add_many(table, TABLE_FIELD, key, TABLE_STRING, value); if (r < 0) return table_log_add_error(r); return 0; } static int format_dropins(char **dropins) { STRV_FOREACH(d, dropins) { _cleanup_free_ char *s = NULL; int glyph = *(d + 1) == NULL ? SPECIAL_GLYPH_TREE_RIGHT : SPECIAL_GLYPH_TREE_BRANCH; s = strjoin(special_glyph(glyph), *d); if (!s) return log_oom(); free_and_replace(*d, s); } return 0; } static int link_status_one( sd_bus *bus, sd_netlink *rtnl, sd_hwdb *hwdb, const LinkInfo *info) { _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **sip = NULL, **search_domains = NULL, **route_domains = NULL, **link_dropins = NULL, **network_dropins = NULL; _cleanup_free_ char *t = NULL, *network = NULL, *iaid = NULL, *duid = NULL, *captive_portal = NULL, *setup_state = NULL, *operational_state = NULL, *online_state = NULL, *activation_policy = NULL; const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL, *link = NULL, *on_color_operational, *off_color_operational, *on_color_setup, *off_color_setup, *on_color_online; _cleanup_free_ int *carrier_bound_to = NULL, *carrier_bound_by = NULL; _cleanup_(sd_dhcp_lease_unrefp) sd_dhcp_lease *lease = NULL; _cleanup_(table_unrefp) Table *table = NULL; int r; assert(bus); assert(rtnl); assert(info); (void) sd_network_link_get_operational_state(info->ifindex, &operational_state); operational_state_to_color(info->name, operational_state, &on_color_operational, &off_color_operational); (void) sd_network_link_get_online_state(info->ifindex, &online_state); online_state_to_color(online_state, &on_color_online, NULL); (void) sd_network_link_get_setup_state(info->ifindex, &setup_state); 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); (void) sd_network_link_get_sip(info->ifindex, &sip); (void) sd_network_link_get_captive_portal(info->ifindex, &captive_portal); (void) sd_network_link_get_network_file(info->ifindex, &network); (void) sd_network_link_get_network_file_dropins(info->ifindex, &network_dropins); (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); (void) sd_network_link_get_activation_policy(info->ifindex, &activation_policy); if (info->sd_device) { const char *joined; (void) sd_device_get_property_value(info->sd_device, "ID_NET_LINK_FILE", &link); if (sd_device_get_property_value(info->sd_device, "ID_NET_LINK_FILE_DROPINS", &joined) >= 0) { r = strv_split_full(&link_dropins, joined, ":", EXTRACT_CUNESCAPE); if (r < 0) return r; } (void) sd_device_get_property_value(info->sd_device, "ID_NET_DRIVER", &driver); (void) sd_device_get_property_value(info->sd_device, "ID_PATH", &path); (void) device_get_vendor_string(info->sd_device, &vendor); (void) device_get_model_string(info->sd_device, &model); } r = net_get_type_string(info->sd_device, info->iftype, &t); if (r == -ENOMEM) return log_oom(); char lease_file[STRLEN("/run/systemd/netif/leases/") + DECIMAL_STR_MAX(int)]; xsprintf(lease_file, "/run/systemd/netif/leases/%i", info->ifindex); (void) dhcp_lease_load(&lease, lease_file); r = format_dropins(network_dropins); if (r < 0) return r; if (strv_prepend(&network_dropins, network) < 0) return log_oom(); r = format_dropins(link_dropins); if (r < 0) return r; if (strv_prepend(&link_dropins, link) < 0) return log_oom(); table = table_new_vertical(); if (!table) return log_oom(); if (arg_full) table_set_width(table, 0); /* unit files and basic states. */ r = table_add_many(table, TABLE_FIELD, "Link File", TABLE_STRV, link_dropins ?: STRV_MAKE("n/a"), TABLE_FIELD, "Network File", TABLE_STRV, network_dropins ?: STRV_MAKE("n/a"), TABLE_FIELD, "State"); if (r < 0) return table_log_add_error(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, setup_state ?: "unmanaged", off_color_setup); if (r < 0) return table_log_add_error(r); r = table_add_many(table, TABLE_FIELD, "Online state", TABLE_STRING, online_state ?: "unknown", TABLE_SET_COLOR, on_color_online); if (r < 0) return table_log_add_error(r); r = table_add_string_line(table, "Type", t); if (r < 0) return r; r = table_add_string_line(table, "Kind", info->netdev_kind); if (r < 0) return r; r = table_add_string_line(table, "Path", path); if (r < 0) return r; r = table_add_string_line(table, "Driver", driver); if (r < 0) return r; r = table_add_string_line(table, "Vendor", vendor); if (r < 0) return r; r = table_add_string_line(table, "Model", model); if (r < 0) return r; strv_sort(info->alternative_names); r = dump_list(table, "Alternative Names", info->alternative_names); if (r < 0) return r; if (info->has_hw_address) { r = dump_hw_address(table, hwdb, "Hardware Address", &info->hw_address); if (r < 0) return r; } if (info->has_permanent_hw_address) { r = dump_hw_address(table, hwdb, "Permanent Hardware Address", &info->permanent_hw_address); 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_FIELD, "MTU"); if (r < 0) return table_log_add_error(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 table_log_add_error(r); } r = table_add_string_line(table, "QDisc", info->qdisc); if (r < 0) return r; if (info->master > 0) { r = table_add_many(table, TABLE_FIELD, "Master", TABLE_IFINDEX, info->master); if (r < 0) return table_log_add_error(r); } if (info->has_ipv6_address_generation_mode) { static const struct { const char *mode; } mode_table[] = { { "eui64" }, { "none" }, { "stable-privacy" }, { "random" }, }; r = table_add_many(table, TABLE_FIELD, "IPv6 Address Generation Mode", TABLE_STRING, mode_table[info->addr_gen_mode]); if (r < 0) return table_log_add_error(r); } if (streq_ptr(info->netdev_kind, "bridge")) { r = table_add_many(table, TABLE_FIELD, "Forward Delay", TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->forward_delay), TABLE_FIELD, "Hello Time", TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->hello_time), TABLE_FIELD, "Max Age", TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->max_age), TABLE_FIELD, "Ageing Time", TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->ageing_time), TABLE_FIELD, "Priority", TABLE_UINT16, info->priority, TABLE_FIELD, "STP", TABLE_BOOLEAN, info->stp_state > 0, TABLE_FIELD, "Multicast IGMP Version", TABLE_UINT8, info->mcast_igmp_version, TABLE_FIELD, "Cost", TABLE_UINT32, info->cost); if (r < 0) return table_log_add_error(r); if (info->port_state <= BR_STATE_BLOCKING) { r = table_add_many(table, TABLE_FIELD, "Port State", TABLE_STRING, bridge_state_to_string(info->port_state)); if (r < 0) return table_log_add_error(r); } } else if (streq_ptr(info->netdev_kind, "bond")) { r = table_add_many(table, TABLE_FIELD, "Mode", TABLE_STRING, bond_mode_to_string(info->mode), TABLE_FIELD, "Miimon", TABLE_TIMESPAN_MSEC, info->miimon * USEC_PER_MSEC, TABLE_FIELD, "Updelay", TABLE_TIMESPAN_MSEC, info->updelay * USEC_PER_MSEC, TABLE_FIELD, "Downdelay", TABLE_TIMESPAN_MSEC, info->downdelay * USEC_PER_MSEC); if (r < 0) return table_log_add_error(r); } else if (streq_ptr(info->netdev_kind, "vxlan")) { char ttl[CONST_MAX(STRLEN("auto") + 1, DECIMAL_STR_MAX(uint8_t))]; if (info->vxlan_info.vni > 0) { r = table_add_many(table, TABLE_FIELD, "VNI", TABLE_UINT32, info->vxlan_info.vni); if (r < 0) return table_log_add_error(r); } if (IN_SET(info->vxlan_info.group_family, AF_INET, AF_INET6)) { const char *p; r = in_addr_is_multicast(info->vxlan_info.group_family, &info->vxlan_info.group); if (r <= 0) p = "Remote"; else p = "Group"; r = table_add_many(table, TABLE_FIELD, p, info->vxlan_info.group_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR, &info->vxlan_info.group); if (r < 0) return table_log_add_error(r); } if (IN_SET(info->vxlan_info.local_family, AF_INET, AF_INET6)) { r = table_add_many(table, TABLE_FIELD, "Local", info->vxlan_info.local_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR, &info->vxlan_info.local); if (r < 0) return table_log_add_error(r); } if (info->vxlan_info.dest_port > 0) { r = table_add_many(table, TABLE_FIELD, "Destination Port", TABLE_UINT16, be16toh(info->vxlan_info.dest_port)); if (r < 0) return table_log_add_error(r); } if (info->vxlan_info.link > 0) { r = table_add_many(table, TABLE_FIELD, "Underlying Device", TABLE_IFINDEX, info->vxlan_info.link); if (r < 0) return table_log_add_error(r); } r = table_add_many(table, TABLE_FIELD, "Learning", TABLE_BOOLEAN, info->vxlan_info.learning, TABLE_FIELD, "RSC", TABLE_BOOLEAN, info->vxlan_info.rsc, TABLE_FIELD, "L3MISS", TABLE_BOOLEAN, info->vxlan_info.l3miss, TABLE_FIELD, "L2MISS", TABLE_BOOLEAN, info->vxlan_info.l2miss); if (r < 0) return table_log_add_error(r); if (info->vxlan_info.tos > 1) { r = table_add_many(table, TABLE_FIELD, "TOS", TABLE_UINT8, info->vxlan_info.tos); if (r < 0) return table_log_add_error(r); } if (info->vxlan_info.ttl > 0) xsprintf(ttl, "%" PRIu8, info->vxlan_info.ttl); else strcpy(ttl, "auto"); r = table_add_many(table, TABLE_FIELD, "TTL", TABLE_STRING, ttl); if (r < 0) return table_log_add_error(r); } else if (streq_ptr(info->netdev_kind, "vlan") && info->vlan_id > 0) { r = table_add_many(table, TABLE_FIELD, "VLan Id", TABLE_UINT16, info->vlan_id); if (r < 0) return table_log_add_error(r); } else if (STRPTR_IN_SET(info->netdev_kind, "ipip", "sit", "gre", "gretap", "erspan", "vti")) { if (in_addr_is_set(AF_INET, &info->local)) { r = table_add_many(table, TABLE_FIELD, "Local", TABLE_IN_ADDR, &info->local); if (r < 0) return table_log_add_error(r); } if (in_addr_is_set(AF_INET, &info->remote)) { r = table_add_many(table, TABLE_FIELD, "Remote", TABLE_IN_ADDR, &info->remote); if (r < 0) return table_log_add_error(r); } } else if (STRPTR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan", "vti6")) { if (in_addr_is_set(AF_INET6, &info->local)) { r = table_add_many(table, TABLE_FIELD, "Local", TABLE_IN6_ADDR, &info->local); if (r < 0) return table_log_add_error(r); } if (in_addr_is_set(AF_INET6, &info->remote)) { r = table_add_many(table, TABLE_FIELD, "Remote", TABLE_IN6_ADDR, &info->remote); if (r < 0) return table_log_add_error(r); } } else if (streq_ptr(info->netdev_kind, "geneve")) { r = table_add_many(table, TABLE_FIELD, "VNI", TABLE_UINT32, info->vni); if (r < 0) return table_log_add_error(r); if (info->has_tunnel_ipv4 && in_addr_is_set(AF_INET, &info->remote)) { r = table_add_many(table, TABLE_FIELD, "Remote", TABLE_IN_ADDR, &info->remote); if (r < 0) return table_log_add_error(r); } else if (in_addr_is_set(AF_INET6, &info->remote)) { r = table_add_many(table, TABLE_FIELD, "Remote", TABLE_IN6_ADDR, &info->remote); if (r < 0) return table_log_add_error(r); } if (info->ttl > 0) { r = table_add_many(table, TABLE_FIELD, "TTL", TABLE_UINT8, info->ttl); if (r < 0) return table_log_add_error(r); } if (info->tos > 0) { r = table_add_many(table, TABLE_FIELD, "TOS", TABLE_UINT8, info->tos); if (r < 0) return table_log_add_error(r); } r = table_add_many(table, TABLE_FIELD, "Port", TABLE_UINT16, info->tunnel_port, TABLE_FIELD, "Inherit", TABLE_STRING, geneve_df_to_string(info->inherit)); if (r < 0) return table_log_add_error(r); if (info->df > 0) { r = table_add_many(table, TABLE_FIELD, "IPDoNotFragment", TABLE_UINT8, info->df); if (r < 0) return table_log_add_error(r); } r = table_add_many(table, TABLE_FIELD, "UDPChecksum", TABLE_BOOLEAN, info->csum, TABLE_FIELD, "UDP6ZeroChecksumTx", TABLE_BOOLEAN, info->csum6_tx, TABLE_FIELD, "UDP6ZeroChecksumRx", TABLE_BOOLEAN, info->csum6_rx); if (r < 0) return table_log_add_error(r); if (info->label > 0) { r = table_add_many(table, TABLE_FIELD, "FlowLabel", TABLE_UINT32, info->label); if (r < 0) return table_log_add_error(r); } } else if (STRPTR_IN_SET(info->netdev_kind, "macvlan", "macvtap")) { r = table_add_many(table, TABLE_FIELD, "Mode", TABLE_STRING, macvlan_mode_to_string(info->macvlan_mode)); if (r < 0) return table_log_add_error(r); } else if (streq_ptr(info->netdev_kind, "ipvlan")) { const char *p; if (info->ipvlan_flags & IPVLAN_F_PRIVATE) p = "private"; else if (info->ipvlan_flags & IPVLAN_F_VEPA) p = "vepa"; else p = "bridge"; r = table_add_cell(table, NULL, TABLE_FIELD, "Mode"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%s (%s)", ipvlan_mode_to_string(info->ipvlan_mode), p); if (r < 0) return table_log_add_error(r); } if (info->has_wlan_link_info) { _cleanup_free_ char *esc = NULL; r = table_add_cell(table, NULL, TABLE_FIELD, "Wi-Fi access point"); if (r < 0) return table_log_add_error(r); if (info->ssid) esc = cescape(info->ssid); r = table_add_cell_stringf(table, NULL, "%s (%s)", strnull(esc), ETHER_ADDR_TO_STR(&info->bssid)); if (r < 0) return table_log_add_error(r); } if (info->has_bitrates) { r = table_add_cell(table, NULL, TABLE_FIELD, "Bit Rate (Tx/Rx)"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%sbps/%sbps", FORMAT_BYTES_FULL(info->tx_bitrate, 0), FORMAT_BYTES_FULL(info->rx_bitrate, 0)); if (r < 0) return table_log_add_error(r); } if (info->has_tx_queues || info->has_rx_queues) { r = table_add_cell(table, NULL, TABLE_FIELD, "Number of Queues (Tx/Rx)"); if (r < 0) return table_log_add_error(r); r = table_add_cell_stringf(table, NULL, "%" PRIu32 "/%" PRIu32, info->tx_queues, info->rx_queues); if (r < 0) return table_log_add_error(r); } if (info->has_ethtool_link_info) { if (IN_SET(info->autonegotiation, AUTONEG_DISABLE, AUTONEG_ENABLE)) { r = table_add_many(table, TABLE_FIELD, "Auto negotiation", TABLE_BOOLEAN, info->autonegotiation == AUTONEG_ENABLE); if (r < 0) return table_log_add_error(r); } if (info->speed > 0 && info->speed != UINT64_MAX) { r = table_add_many(table, TABLE_FIELD, "Speed", TABLE_BPS, info->speed); if (r < 0) return table_log_add_error(r); } r = table_add_string_line(table, "Duplex", duplex_to_string(info->duplex)); if (r < 0) return r; r = table_add_string_line(table, "Port", port_to_string(info->port)); if (r < 0) return r; } r = dump_addresses(rtnl, lease, 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_list(table, "SIP", sip); 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; r = table_add_string_line(table, "Activation Policy", activation_policy); if (r < 0) return r; r = sd_network_link_get_required_for_online(info->ifindex); if (r >= 0) { r = table_add_many(table, TABLE_FIELD, "Required For Online", TABLE_BOOLEAN, r); if (r < 0) return table_log_add_error(r); } if (captive_portal) { r = table_add_many(table, TABLE_FIELD, "Captive Portal", TABLE_STRING, captive_portal, TABLE_SET_URL, captive_portal); if (r < 0) return table_log_add_error(r); } if (lease) { const void *client_id; size_t client_id_len; const char *tz; r = sd_dhcp_lease_get_timezone(lease, &tz); if (r >= 0) { r = table_add_many(table, TABLE_FIELD, "Time Zone", TABLE_STRING, tz); if (r < 0) return table_log_add_error(r); } r = sd_dhcp_lease_get_client_id(lease, &client_id, &client_id_len); if (r >= 0) { _cleanup_free_ char *id = NULL; r = sd_dhcp_client_id_to_string(client_id, client_id_len, &id); if (r >= 0) { r = table_add_many(table, TABLE_FIELD, "DHCP4 Client ID", TABLE_STRING, id); if (r < 0) return table_log_add_error(r); } } } r = sd_network_link_get_dhcp6_client_iaid_string(info->ifindex, &iaid); if (r >= 0) { r = table_add_many(table, TABLE_FIELD, "DHCP6 Client IAID", TABLE_STRING, iaid); if (r < 0) return table_log_add_error(r); } r = sd_network_link_get_dhcp6_client_duid_string(info->ifindex, &duid); if (r >= 0) { r = table_add_many(table, TABLE_FIELD, "DHCP6 Client DUID", TABLE_STRING, duid); if (r < 0) return table_log_add_error(r); } r = dump_lldp_neighbors(table, "Connected To", info->ifindex); if (r < 0) return r; r = dump_dhcp_leases(table, "Offered DHCP leases", bus, info); if (r < 0) return r; r = dump_statistics(table, info); if (r < 0) return r; /* First line: circle, ifindex, ifname. */ printf("%s%s%s %d: %s\n", on_color_operational, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off_color_operational, info->ifindex, info->name); r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); return show_logs(info); } static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) { _cleanup_free_ char *operational_state = NULL, *online_state = NULL, *netifs_joined = NULL; _cleanup_strv_free_ char **netifs = NULL, **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL; const char *on_color_operational, *off_color_operational, *on_color_online; _cleanup_(table_unrefp) Table *table = NULL; int r; assert(rtnl); (void) sd_network_get_operational_state(&operational_state); operational_state_to_color(NULL, operational_state, &on_color_operational, &off_color_operational); (void) sd_network_get_online_state(&online_state); online_state_to_color(online_state, &on_color_online, NULL); table = table_new_vertical(); if (!table) return log_oom(); if (arg_full) table_set_width(table, 0); r = get_files_in_directory("/run/systemd/netif/links/", &netifs); if (r < 0 && r != -ENOENT) return log_error_errno(r, "Failed to list network interfaces: %m"); else if (r > 0) { netifs_joined = strv_join(netifs, ", "); if (!netifs_joined) return log_oom(); } r = table_add_many(table, TABLE_FIELD, "State", TABLE_STRING, strna(operational_state), TABLE_SET_COLOR, on_color_operational, TABLE_FIELD, "Online state", TABLE_STRING, online_state ?: "unknown", TABLE_SET_COLOR, on_color_online); if (r < 0) return table_log_add_error(r); r = dump_addresses(rtnl, NULL, 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; printf("%s%s%s Interfaces: %s\n", on_color_operational, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off_color_operational, strna(netifs_joined)); r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); return show_logs(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_(link_info_array_freep) LinkInfo *links = NULL; int r, c; r = acquire_bus(&bus); if (r < 0) return r; if (arg_json_format_flags != JSON_FORMAT_OFF) { if (arg_all || argc <= 1) return dump_manager_description(bus); else return dump_link_description(bus, strv_skip(argv, 1)); } 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(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; r = 0; bool first = true; FOREACH_ARRAY(i, links, c) { if (!first) putchar('\n'); RET_GATHER(r, link_status_one(bus, rtnl, hwdb, i)); first = false; } return r; } 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 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 (unsigned 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_(link_info_array_freep) LinkInfo *links = NULL; _cleanup_(table_unrefp) Table *table = NULL; int 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; pager_open(arg_pager_flags); table = table_new("link", "chassis-id", "system-name", "caps", "port-id", "port-description"); if (!table) return log_oom(); if (arg_full) table_set_width(table, 0); table_set_header(table, arg_legend); assert_se(cell = table_get_cell(table, 0, 3)); table_set_minimum_width(table, cell, 11); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); FOREACH_ARRAY(link, links, c) { _cleanup_fclose_ FILE *f = NULL; r = open_lldp_neighbors(link->ifindex, &f); if (r == -ENOENT) continue; if (r < 0) { log_warning_errno(r, "Failed to open LLDP data for %i, ignoring: %m", link->ifindex); continue; } for (;;) { const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = NULL; _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL; _cleanup_free_ char *capabilities = 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 (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) { capabilities = lldp_capabilities_to_string(cc); all |= cc; } r = table_add_many(table, TABLE_STRING, link->name, TABLE_STRING, chassis_id, TABLE_STRING, system_name, TABLE_STRING, capabilities, TABLE_STRING, port_id, TABLE_STRING, port_description); if (r < 0) return table_log_add_error(r); m++; } } r = table_print(table, NULL); if (r < 0) return table_log_print_error(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); assert(index >= 0); 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_up_down_send_message(sd_netlink *rtnl, char *command, int index) { _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL; int r; assert(rtnl); assert(index >= 0); r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, index); if (r < 0) return rtnl_log_create_error(r); if (streq(command, "up")) r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP); else r = sd_rtnl_message_link_set_flags(req, 0, IFF_UP); if (r < 0) return log_error_errno(r, "Could not set link flags: %m"); r = sd_netlink_call(rtnl, req, 0, NULL); if (r < 0) return r; return 0; } static int link_up_down(int argc, char *argv[], void *userdata) { _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; _cleanup_set_free_ Set *indexes = NULL; int index, r; 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 (int i = 1; i < argc; i++) { index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); if (index < 0) return index; r = set_put(indexes, INT_TO_PTR(index)); if (r < 0) return log_oom(); } SET_FOREACH(p, indexes) { index = PTR_TO_INT(p); r = link_up_down_send_message(rtnl, argv[0], index); if (r < 0) return log_error_errno(r, "Failed to bring %s interface %s: %m", argv[0], FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX)); } return r; } 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; 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 (int i = 1; i < argc; i++) { index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); if (index < 0) return index; r = set_put(indexes, INT_TO_PTR(index)); if (r < 0) return log_oom(); } SET_FOREACH(p, indexes) { index = PTR_TO_INT(p); r = link_delete_send_message(rtnl, index); if (r < 0) return log_error_errno(r, "Failed to delete interface %s: %m", FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX)); } return r; } static int link_renew_one(sd_bus *bus, int index, const char *name) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(index >= 0); assert(name); r = bus_call_method(bus, bus_network_mgr, "RenewLink", &error, NULL, "i", index); if (r < 0) return log_error_errno(r, "Failed to renew dynamic configuration of interface %s: %s", name, bus_error_message(&error, r)); return 0; } static int link_renew(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; int index, k = 0, r; r = acquire_bus(&bus); if (r < 0) return r; for (int i = 1; i < argc; i++) { index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); if (index < 0) return index; r = link_renew_one(bus, index, argv[i]); if (r < 0 && k >= 0) k = r; } return k; } static int link_force_renew_one(sd_bus *bus, int index, const char *name) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; assert(bus); assert(index >= 0); assert(name); r = bus_call_method(bus, bus_network_mgr, "ForceRenewLink", &error, NULL, "i", index); if (r < 0) return log_error_errno(r, "Failed to force renew dynamic configuration of interface %s: %s", name, bus_error_message(&error, r)); return 0; } static int link_force_renew(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; int k = 0, r; r = acquire_bus(&bus); if (r < 0) return r; for (int i = 1; i < argc; i++) { int index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); if (index < 0) return index; r = link_force_renew_one(bus, index, argv[i]); if (r < 0 && k >= 0) k = r; } return k; } static int verb_reload(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; r = acquire_bus(&bus); if (r < 0) return r; r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL); if (r < 0) return log_error_errno(r, "Failed to reload network settings: %s", bus_error_message(&error, r)); return 0; } static int verb_reconfigure(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; _cleanup_set_free_ Set *indexes = NULL; int index, r; void *p; r = acquire_bus(&bus); if (r < 0) return r; indexes = set_new(NULL); if (!indexes) return log_oom(); for (int i = 1; i < argc; i++) { index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]); if (index < 0) return index; r = set_put(indexes, INT_TO_PTR(index)); if (r < 0) return log_oom(); } SET_FOREACH(p, indexes) { index = PTR_TO_INT(p); r = bus_call_method(bus, bus_network_mgr, "ReconfigureLink", &error, NULL, "i", index); if (r < 0) return log_error_errno(r, "Failed to reconfigure network interface %s: %s", FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX), bus_error_message(&error, r)); } return 0; } typedef enum ReloadFlags { RELOAD_NETWORKD = 1 << 0, RELOAD_UDEVD = 1 << 1, } ReloadFlags; static int get_config_files_by_name(const char *name, char **ret_path, char ***ret_dropins) { _cleanup_free_ char *path = NULL; int r; assert(name); assert(ret_path); STRV_FOREACH(i, NETWORK_DIRS) { _cleanup_free_ char *p = NULL; p = path_join(*i, name); if (!p) return -ENOMEM; r = RET_NERRNO(access(p, F_OK)); if (r >= 0) { path = TAKE_PTR(p); break; } if (r != -ENOENT) log_debug_errno(r, "Failed to determine whether '%s' exists, ignoring: %m", p); } if (!path) return -ENOENT; if (ret_dropins) { _cleanup_free_ char *dropin_dirname = NULL; dropin_dirname = strjoin(name, ".d"); if (!dropin_dirname) return -ENOMEM; r = conf_files_list_dropins(ret_dropins, dropin_dirname, /* root = */ NULL, NETWORK_DIRS); if (r < 0) return r; } *ret_path = TAKE_PTR(path); return 0; } static int get_dropin_by_name( const char *name, char * const *dropins, char **ret) { assert(name); assert(dropins); assert(ret); STRV_FOREACH(i, dropins) if (path_equal_filename(*i, name)) { _cleanup_free_ char *d = NULL; d = strdup(*i); if (!d) return -ENOMEM; *ret = TAKE_PTR(d); return 1; } *ret = NULL; return 0; } static int get_network_files_by_link( sd_netlink **rtnl, const char *link, char **ret_path, char ***ret_dropins) { _cleanup_strv_free_ char **dropins = NULL; _cleanup_free_ char *path = NULL; int r, ifindex; assert(rtnl); assert(link); assert(ret_path); assert(ret_dropins); ifindex = rtnl_resolve_interface_or_warn(rtnl, link); if (ifindex < 0) return ifindex; r = sd_network_link_get_network_file(ifindex, &path); if (r == -ENODATA) return log_error_errno(SYNTHETIC_ERRNO(ENOENT), "Link '%s' has no associated network file.", link); if (r < 0) return log_error_errno(r, "Failed to get network file for link '%s': %m", link); r = sd_network_link_get_network_file_dropins(ifindex, &dropins); if (r < 0 && r != -ENODATA) return log_error_errno(r, "Failed to get network drop-ins for link '%s': %m", link); *ret_path = TAKE_PTR(path); *ret_dropins = TAKE_PTR(dropins); return 0; } static int get_link_files_by_link(const char *link, char **ret_path, char ***ret_dropins) { _cleanup_(sd_device_unrefp) sd_device *device = NULL; _cleanup_strv_free_ char **dropins_split = NULL; _cleanup_free_ char *p = NULL; const char *path, *dropins; int r; assert(link); assert(ret_path); assert(ret_dropins); r = sd_device_new_from_ifname(&device, link); if (r < 0) return log_error_errno(r, "Failed to create sd-device object for link '%s': %m", link); r = sd_device_get_property_value(device, "ID_NET_LINK_FILE", &path); if (r == -ENOENT) return log_error_errno(r, "Link '%s' has no associated link file.", link); if (r < 0) return log_error_errno(r, "Failed to get link file for link '%s': %m", link); r = sd_device_get_property_value(device, "ID_NET_LINK_FILE_DROPINS", &dropins); if (r < 0 && r != -ENOENT) return log_error_errno(r, "Failed to get link drop-ins for link '%s': %m", link); if (r >= 0) { r = strv_split_full(&dropins_split, dropins, ":", EXTRACT_CUNESCAPE); if (r < 0) return log_error_errno(r, "Failed to parse link drop-ins for link '%s': %m", link); } p = strdup(path); if (!p) return log_oom(); *ret_path = TAKE_PTR(p); *ret_dropins = TAKE_PTR(dropins_split); return 0; } static int get_config_files_by_link_config( const char *link_config, sd_netlink **rtnl, char **ret_path, char ***ret_dropins, ReloadFlags *ret_reload) { _cleanup_strv_free_ char **dropins = NULL, **link_config_split = NULL; _cleanup_free_ char *path = NULL; const char *ifname, *type; ReloadFlags reload; size_t n; int r; assert(link_config); assert(rtnl); assert(ret_path); assert(ret_dropins); link_config_split = strv_split(link_config, ":"); if (!link_config_split) return log_oom(); n = strv_length(link_config_split); if (n == 0 || isempty(link_config_split[0])) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No link name is given."); if (n > 2) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid link config '%s'.", link_config); ifname = link_config_split[0]; type = n == 2 ? link_config_split[1] : "network"; if (streq(type, "network")) { if (!networkd_is_running()) return log_error_errno(SYNTHETIC_ERRNO(ESRCH), "Cannot get network file for link if systemd-networkd is not running."); r = get_network_files_by_link(rtnl, ifname, &path, &dropins); if (r < 0) return r; reload = RELOAD_NETWORKD; } else if (streq(type, "link")) { r = get_link_files_by_link(ifname, &path, &dropins); if (r < 0) return r; reload = RELOAD_UDEVD; } else return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid config type '%s' for link '%s'.", type, ifname); *ret_path = TAKE_PTR(path); *ret_dropins = TAKE_PTR(dropins); if (ret_reload) *ret_reload = reload; return 0; } static int add_config_to_edit( EditFileContext *context, const char *path, char * const *dropins) { _cleanup_free_ char *new_path = NULL, *dropin_path = NULL, *old_dropin = NULL; _cleanup_strv_free_ char **comment_paths = NULL; int r; assert(context); assert(path); assert(!arg_drop_in || dropins); if (path_startswith(path, "/usr")) { _cleanup_free_ char *name = NULL; r = path_extract_filename(path, &name); if (r < 0) return log_error_errno(r, "Failed to extract filename from '%s': %m", path); new_path = path_join(NETWORK_DIRS[0], name); if (!new_path) return log_oom(); } if (!arg_drop_in) return edit_files_add(context, new_path ?: path, path, NULL); r = get_dropin_by_name(arg_drop_in, dropins, &old_dropin); if (r < 0) return log_error_errno(r, "Failed to acquire drop-in '%s': %m", arg_drop_in); if (r > 0 && !path_startswith(old_dropin, "/usr")) /* An existing drop-in is found and not in /usr/. Let's edit it directly. */ dropin_path = TAKE_PTR(old_dropin); else { /* No drop-in was found or an existing drop-in resides in /usr/. Let's create * a new drop-in file. */ dropin_path = strjoin(new_path ?: path, ".d/", arg_drop_in); if (!dropin_path) return log_oom(); } comment_paths = strv_new(path); if (!comment_paths) return log_oom(); r = strv_extend_strv(&comment_paths, dropins, /* filter_duplicates = */ false); if (r < 0) return log_oom(); return edit_files_add(context, dropin_path, old_dropin, comment_paths); } static int udevd_reload(sd_bus *bus) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; const char *job_path; int r; assert(bus); r = bus_wait_for_jobs_new(bus, &w); if (r < 0) return log_error_errno(r, "Could not watch jobs: %m"); r = bus_call_method(bus, bus_systemd_mgr, "ReloadUnit", &error, &reply, "ss", "systemd-udevd.service", "replace"); if (r < 0) return log_error_errno(r, "Failed to reload systemd-udevd: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "o", &job_path); if (r < 0) return bus_log_parse_error(r); r = bus_wait_for_jobs_one(w, job_path, /* quiet = */ true, NULL); if (r == -ENOEXEC) { log_debug("systemd-udevd is not running, skipping reload."); return 0; } if (r < 0) return log_error_errno(r, "Failed to reload systemd-udevd: %m"); return 1; } static int verb_edit(int argc, char *argv[], void *userdata) { _cleanup_(edit_file_context_done) EditFileContext context = { .marker_start = DROPIN_MARKER_START, .marker_end = DROPIN_MARKER_END, .remove_parent = !!arg_drop_in, }; _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; ReloadFlags reload = 0; int r; if (!on_tty()) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit network config files if not on a tty."); r = mac_selinux_init(); if (r < 0) return r; STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_strv_free_ char **dropins = NULL; _cleanup_free_ char *path = NULL; const char *link_config; link_config = startswith(*name, "@"); if (link_config) { ReloadFlags flags; r = get_config_files_by_link_config(link_config, &rtnl, &path, &dropins, &flags); if (r < 0) return r; reload |= flags; r = add_config_to_edit(&context, path, dropins); if (r < 0) return r; continue; } if (ENDSWITH_SET(*name, ".network", ".netdev")) reload |= RELOAD_NETWORKD; else if (endswith(*name, ".link")) reload |= RELOAD_UDEVD; else return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid network config name '%s'.", *name); r = get_config_files_by_name(*name, &path, &dropins); if (r == -ENOENT) { if (arg_drop_in) return log_error_errno(r, "Cannot find network config '%s'.", *name); log_debug("No existing network config '%s' found, creating a new file.", *name); path = path_join(NETWORK_DIRS[0], *name); if (!path) return log_oom(); r = edit_files_add(&context, path, NULL, NULL); if (r < 0) return r; continue; } if (r < 0) return log_error_errno(r, "Failed to get the path of network config '%s': %m", *name); r = add_config_to_edit(&context, path, dropins); if (r < 0) return r; } r = do_edit_files_and_install(&context); if (r < 0) return r; if (arg_no_reload) return 0; if (!sd_booted() || running_in_chroot() > 0) { log_debug("System is not booted with systemd or is running in chroot, skipping reload."); return 0; } _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; r = sd_bus_open_system(&bus); if (r < 0) return log_error_errno(r, "Failed to connect to system bus: %m"); if (FLAGS_SET(reload, RELOAD_UDEVD)) { r = udevd_reload(bus); if (r < 0) return r; } if (FLAGS_SET(reload, RELOAD_NETWORKD)) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; if (!networkd_is_running()) { log_debug("systemd-networkd is not running, skipping reload."); return 0; } r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL); if (r < 0) return log_error_errno(r, "Failed to reload systemd-networkd: %s", bus_error_message(&error, r)); } return 0; } static int verb_cat(int argc, char *argv[], void *userdata) { _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; int r, ret = 0; pager_open(arg_pager_flags); STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_strv_free_ char **dropins = NULL; _cleanup_free_ char *path = NULL; const char *link_config; link_config = startswith(*name, "@"); if (link_config) { r = get_config_files_by_link_config(link_config, &rtnl, &path, &dropins, /* ret_reload = */ NULL); if (r < 0) return ret < 0 ? ret : r; } else { r = get_config_files_by_name(*name, &path, &dropins); if (r == -ENOENT) { log_error_errno(r, "Cannot find network config file '%s'.", *name); ret = ret < 0 ? ret : r; continue; } if (r < 0) { log_error_errno(r, "Failed to get the path of network config '%s': %m", *name); return ret < 0 ? ret : r; } } r = cat_files(path, dropins, /* flags = */ CAT_FORMAT_HAS_SECTIONS); if (r < 0) return ret < 0 ? ret : r; } return ret; } 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...] COMMAND\n\n" "%sQuery and control the networking subsystem.%s\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" " up DEVICES... Bring devices up\n" " down DEVICES... Bring devices down\n" " renew DEVICES... Renew dynamic configurations\n" " forcerenew DEVICES... Trigger DHCP reconfiguration of all connected clients\n" " reconfigure DEVICES... Reconfigure interfaces\n" " reload Reload .network and .netdev files\n" " edit FILES|DEVICES... Edit network configuration files\n" " cat FILES|DEVICES... Show network configuration files\n" "\nOptions:\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 statistics\n" " -l --full Do not ellipsize output\n" " -n --lines=INTEGER Number of journal entries to show\n" " --json=pretty|short|off\n" " Generate JSON output\n" " --no-reload Do not reload systemd-networkd or systemd-udevd\n" " after editing network config\n" " --drop-in=NAME Edit specified drop-in instead of main config file\n" "\nSee the %s for details.\n", program_invocation_short_name, ansi_highlight(), ansi_normal(), link); return 0; } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_NO_PAGER, ARG_NO_LEGEND, ARG_JSON, ARG_NO_RELOAD, ARG_DROP_IN, }; 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' }, { "full", no_argument, NULL, 'l' }, { "lines", required_argument, NULL, 'n' }, { "json", required_argument, NULL, ARG_JSON }, { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, { "drop-in", required_argument, NULL, ARG_DROP_IN }, {} }; int c, r; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "hasln:", 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 ARG_NO_RELOAD: arg_no_reload = true; break; case ARG_DROP_IN: if (isempty(optarg)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Empty drop-in file name."); if (!endswith(optarg, ".conf")) { char *conf; conf = strjoin(optarg, ".conf"); if (!conf) return log_oom(); free_and_replace(arg_drop_in, conf); } else { r = free_and_strdup(&arg_drop_in, optarg); if (r < 0) return log_oom(); } if (!filename_is_valid(arg_drop_in)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid drop-in file name '%s'.", arg_drop_in); break; case 'a': arg_all = true; break; case 's': arg_stats = true; break; case 'l': arg_full = true; break; case 'n': if (safe_atou(optarg, &arg_lines) < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse lines '%s'", optarg); break; case ARG_JSON: r = parse_json_argument(optarg, &arg_json_format_flags); if (r <= 0) return r; break; case '?': return -EINVAL; default: assert_not_reached(); } } return 1; } static int networkctl_main(int argc, char *argv[]) { static const Verb verbs[] = { { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_links }, { "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, link_status }, { "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status }, { "label", 1, 1, 0, list_address_labels }, { "delete", 2, VERB_ANY, 0, link_delete }, { "up", 2, VERB_ANY, 0, link_up_down }, { "down", 2, VERB_ANY, 0, link_up_down }, { "renew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_renew }, { "forcerenew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_force_renew }, { "reconfigure", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_reconfigure }, { "reload", 1, 1, VERB_ONLINE_ONLY, verb_reload }, { "edit", 2, VERB_ANY, 0, verb_edit }, { "cat", 2, VERB_ANY, 0, verb_cat }, {} }; return dispatch_verb(argc, argv, verbs, NULL); } static int run(int argc, char* argv[]) { int r; log_setup(); sigbus_install(); r = parse_argv(argc, argv); if (r <= 0) return r; return networkctl_main(argc, argv); } DEFINE_MAIN_FUNCTION(run);