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