diff options
Diffstat (limited to 'src/network/networkctl.c')
-rw-r--r-- | src/network/networkctl.c | 1142 |
1 files changed, 0 insertions, 1142 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c deleted file mode 100644 index 6f7f41bf7d..0000000000 --- a/src/network/networkctl.c +++ /dev/null @@ -1,1142 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2014 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <getopt.h> -#include <net/if.h> -#include <stdbool.h> - -#include "sd-device.h" -#include "sd-hwdb.h" -#include "sd-lldp.h" -#include "sd-netlink.h" -#include "sd-network.h" - -#include "alloc-util.h" -#include "arphrd-list.h" -#include "device-util.h" -#include "ether-addr-util.h" -#include "fd-util.h" -#include "hwdb-util.h" -#include "local-addresses.h" -#include "locale-util.h" -#include "netlink-util.h" -#include "pager.h" -#include "parse-util.h" -#include "socket-util.h" -#include "sparse-endian.h" -#include "stdio-util.h" -#include "string-table.h" -#include "string-util.h" -#include "strv.h" -#include "strxcpyx.h" -#include "terminal-util.h" -#include "util.h" -#include "verbs.h" - -static bool arg_no_pager = false; -static bool arg_legend = true; -static bool arg_all = false; - -static int link_get_type_string(unsigned short iftype, sd_device *d, char **ret) { - const char *t; - char *p; - - assert(ret); - - if (iftype == ARPHRD_ETHER && d) { - const char *devtype = NULL, *id = NULL; - /* WLANs have iftype ARPHRD_ETHER, but we want - * to show a more useful type string for - * them */ - - (void) sd_device_get_devtype(d, &devtype); - - if (streq_ptr(devtype, "wlan")) - id = "wlan"; - else if (streq_ptr(devtype, "wwan")) - id = "wwan"; - - if (id) { - p = strdup(id); - if (!p) - return -ENOMEM; - - *ret = p; - return 1; - } - } - - t = arphrd_to_name(iftype); - if (!t) { - *ret = NULL; - return 0; - } - - p = strdup(t); - if (!p) - return -ENOMEM; - - ascii_strlower(p); - *ret = p; - - return 0; -} - -static void operational_state_to_color(const char *state, const char **on, const char **off) { - assert(on); - assert(off); - - if (streq_ptr(state, "routable")) { - *on = ansi_highlight_green(); - *off = ansi_normal(); - } else if (streq_ptr(state, "degraded")) { - *on = ansi_highlight_yellow(); - *off = ansi_normal(); - } else - *on = *off = ""; -} - -static void setup_state_to_color(const char *state, const char **on, const char **off) { - assert(on); - assert(off); - - if (streq_ptr(state, "configured")) { - *on = ansi_highlight_green(); - *off = ansi_normal(); - } else if (streq_ptr(state, "configuring")) { - *on = ansi_highlight_yellow(); - *off = ansi_normal(); - } else if (STRPTR_IN_SET(state, "failed", "linger")) { - *on = ansi_highlight_red(); - *off = ansi_normal(); - } else - *on = *off = ""; -} - -typedef struct LinkInfo { - char name[IFNAMSIZ+1]; - int ifindex; - unsigned short iftype; - struct ether_addr mac_address; - uint32_t mtu; - - bool has_mac_address:1; - bool has_mtu:1; -} LinkInfo; - -static int link_info_compare(const void *a, const void *b) { - const LinkInfo *x = a, *y = b; - - return x->ifindex - y->ifindex; -} - -static int decode_link(sd_netlink_message *m, LinkInfo *info) { - const char *name; - uint16_t type; - int r; - - assert(m); - assert(info); - - r = sd_netlink_message_get_type(m, &type); - if (r < 0) - return r; - - if (type != RTM_NEWLINK) - return 0; - - r = sd_rtnl_message_link_get_ifindex(m, &info->ifindex); - if (r < 0) - return r; - - r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name); - if (r < 0) - return r; - - r = sd_rtnl_message_link_get_type(m, &info->iftype); - if (r < 0) - return r; - - strscpy(info->name, sizeof info->name, name); - - info->has_mac_address = - sd_netlink_message_read_ether_addr(m, IFLA_ADDRESS, &info->mac_address) >= 0 && - memcmp(&info->mac_address, 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_strv(sd_netlink *rtnl, char **l, LinkInfo **ret) { - _cleanup_free_ LinkInfo *links = NULL; - char **i; - size_t c = 0; - int r; - - assert(rtnl); - assert(ret); - - links = new(LinkInfo, strv_length(l)); - if (!links) - return log_oom(); - - STRV_FOREACH(i, l) { - _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; - int ifindex; - - if (parse_ifindex(*i, &ifindex) >= 0) - r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, ifindex); - else { - r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0); - if (r < 0) - return rtnl_log_create_error(r); - - r = sd_netlink_message_append_string(req, IFLA_IFNAME, *i); - } - if (r < 0) - return rtnl_log_create_error(r); - - r = sd_netlink_call(rtnl, req, 0, &reply); - if (r < 0) - return log_error_errno(r, "Failed to request link: %m"); - - r = decode_link(reply, links + c); - if (r < 0) - return r; - if (r > 0) - c++; - } - - qsort_safe(links, c, sizeof(LinkInfo), link_info_compare); - - *ret = links; - links = NULL; - - return (int) c; -} - -static int acquire_link_info_all(sd_netlink *rtnl, LinkInfo **ret) { - _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; - _cleanup_free_ LinkInfo *links = NULL; - size_t allocated = 0, c = 0; - sd_netlink_message *i; - int r; - - assert(rtnl); - assert(ret); - - r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0); - if (r < 0) - return rtnl_log_create_error(r); - - r = sd_netlink_message_request_dump(req, true); - if (r < 0) - return rtnl_log_create_error(r); - - r = sd_netlink_call(rtnl, req, 0, &reply); - if (r < 0) - return log_error_errno(r, "Failed to enumerate links: %m"); - - for (i = reply; i; i = sd_netlink_message_next(i)) { - if (!GREEDY_REALLOC(links, allocated, c+1)) - return -ENOMEM; - - r = decode_link(i, links + c); - if (r < 0) - return r; - if (r > 0) - c++; - } - - qsort_safe(links, c, sizeof(LinkInfo), link_info_compare); - - *ret = links; - links = NULL; - - return (int) c; -} - -static int list_links(int argc, char *argv[], void *userdata) { - _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; - _cleanup_free_ LinkInfo *links = NULL; - int c, i, r; - - r = sd_netlink_open(&rtnl); - if (r < 0) - return log_error_errno(r, "Failed to connect to netlink: %m"); - - if (argc > 1) - c = acquire_link_info_strv(rtnl, argv + 1, &links); - else - c = acquire_link_info_all(rtnl, &links); - if (c < 0) - return c; - - pager_open(arg_no_pager, false); - - if (arg_legend) - printf("%3s %-16s %-18s %-11s %-10s\n", - "IDX", - "LINK", - "TYPE", - "OPERATIONAL", - "SETUP"); - - for (i = 0; i < c; i++) { - _cleanup_free_ char *setup_state = NULL, *operational_state = NULL; - _cleanup_(sd_device_unrefp) sd_device *d = NULL; - const char *on_color_operational, *off_color_operational, - *on_color_setup, *off_color_setup; - char devid[2 + DECIMAL_STR_MAX(int)]; - _cleanup_free_ char *t = NULL; - - (void) sd_network_link_get_operational_state(links[i].ifindex, &operational_state); - operational_state_to_color(operational_state, &on_color_operational, &off_color_operational); - - r = sd_network_link_get_setup_state(links[i].ifindex, &setup_state); - if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */ - setup_state = strdup("unmanaged"); - setup_state_to_color(setup_state, &on_color_setup, &off_color_setup); - - xsprintf(devid, "n%i", links[i].ifindex); - (void) sd_device_new_from_device_id(&d, devid); - - (void) link_get_type_string(links[i].iftype, d, &t); - - printf("%3i %-16s %-18s %s%-11s%s %s%-10s%s\n", - links[i].ifindex, links[i].name, strna(t), - on_color_operational, strna(operational_state), off_color_operational, - on_color_setup, strna(setup_state), off_color_setup); - } - - if (arg_legend) - printf("\n%i links listed.\n", c); - - return 0; -} - -/* IEEE Organizationally Unique Identifier vendor string */ -static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) { - const char *description; - char modalias[strlen("OUI:XXYYXXYYXXYY") + 1], *desc; - int r; - - assert(ret); - - if (!hwdb) - return -EINVAL; - - if (!mac) - return -EINVAL; - - /* skip commonly misused 00:00:00 (Xerox) prefix */ - if (memcmp(mac, "\0\0\0", 3) == 0) - return -EINVAL; - - xsprintf(modalias, "OUI:" ETHER_ADDR_FORMAT_STR, - ETHER_ADDR_FORMAT_VAL(*mac)); - - r = sd_hwdb_get(hwdb, modalias, "ID_OUI_FROM_DATABASE", &description); - if (r < 0) - return r; - - desc = strdup(description); - if (!desc) - return -ENOMEM; - - *ret = desc; - - return 0; -} - -static int get_gateway_description( - sd_netlink *rtnl, - sd_hwdb *hwdb, - int ifindex, - int family, - union in_addr_union *gateway, - char **gateway_description) { - _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL; - sd_netlink_message *m; - int r; - - assert(rtnl); - assert(ifindex >= 0); - assert(family == AF_INET || family == AF_INET6); - assert(gateway); - assert(gateway_description); - - r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family); - if (r < 0) - return r; - - r = sd_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 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; - - 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); - - r = sd_device_get_property_value(d, "ID_VENDOR_FROM_DATABASE", &vendor); - if (r < 0) - (void) sd_device_get_property_value(d, "ID_VENDOR", &vendor); - - r = sd_device_get_property_value(d, "ID_MODEL_FROM_DATABASE", &model); - if (r < 0) - (void) sd_device_get_property_value(d, "ID_MODEL", &model); - } - - (void) link_get_type_string(info->iftype, d, &t); - - (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(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: %u\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(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; - - pager_open(arg_no_pager, false); - - r = sd_netlink_open(&rtnl); - if (r < 0) - return log_error_errno(r, "Failed to connect to netlink: %m"); - - r = sd_hwdb_new(&hwdb); - if (r < 0) - log_debug_errno(r, "Failed to open hardware database: %m"); - - if (arg_all) - c = acquire_link_info_all(rtnl, &links); - else if (argc <= 1) - return system_status(rtnl, hwdb); - else - c = acquire_link_info_strv(rtnl, argv + 1, &links); - if (c < 0) - return c; - - for (i = 0; i < c; i++) { - if (i > 0) - fputc('\n', stdout); - - link_status_one(rtnl, hwdb, links + i); - } - - return 0; -} - -static char *lldp_capabilities_to_string(uint16_t x) { - static const char characters[] = { - 'o', 'p', 'b', 'w', 'r', 't', 'd', 'a', 'c', 's', 'm', - }; - char *ret; - unsigned i; - - ret = new(char, ELEMENTSOF(characters) + 1); - if (!ret) - return NULL; - - for (i = 0; i < ELEMENTSOF(characters); i++) - ret[i] = (x & (1U << i)) ? characters[i] : '.'; - - ret[i] = 0; - return ret; -} - -static void lldp_capabilities_legend(uint16_t x) { - unsigned w, i, cols = columns(); - static const char* const table[] = { - "o - Other", - "p - Repeater", - "b - Bridge", - "w - WLAN Access Point", - "r - Router", - "t - Telephone", - "d - DOCSIS cable device", - "a - Station", - "c - Customer VLAN", - "s - Service VLAN", - "m - Two-port MAC Relay (TPMR)", - }; - - if (x == 0) - return; - - printf("\nCapability Flags:\n"); - for (w = 0, i = 0; i < ELEMENTSOF(table); i++) - if (x & (1U << i) || arg_all) { - bool newline; - - newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols; - if (newline) - w = 0; - w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]); - } - puts(""); -} - -static int link_lldp_status(int argc, char *argv[], void *userdata) { - _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL; - _cleanup_free_ LinkInfo *links = NULL; - int i, r, c, m = 0; - uint16_t all = 0; - - r = sd_netlink_open(&rtnl); - if (r < 0) - return log_error_errno(r, "Failed to connect to netlink: %m"); - - if (argc > 1) - c = acquire_link_info_strv(rtnl, argv + 1, &links); - else - c = acquire_link_info_all(rtnl, &links); - if (c < 0) - return c; - - pager_open(arg_no_pager, false); - - 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 void help(void) { - printf("%s [OPTIONS...]\n\n" - "Query and control the networking subsystem.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - " --no-pager Do not pipe output into a pager\n" - " --no-legend Do not show the headers and footers\n" - " -a --all Show status for all links\n\n" - "Commands:\n" - " list [LINK...] List links\n" - " status [LINK...] Show link status\n" - " lldp [LINK...] Show LLDP neighbors\n" - , program_invocation_short_name); -} - -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': - help(); - return 0; - - case ARG_VERSION: - return version(); - - case ARG_NO_PAGER: - arg_no_pager = true; - 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[]) { - 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 }, - {} - }; - - 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"); -} - -int main(int argc, char* argv[]) { - int r; - - log_parse_environment(); - log_open(); - - r = parse_argv(argc, argv); - if (r <= 0) - goto finish; - - warn_networkd_missing(); - - r = networkctl_main(argc, argv); - -finish: - pager_close(); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; -} |