diff options
Diffstat (limited to 'src/network/networkctl.c')
| -rw-r--r-- | src/network/networkctl.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c index aa868f5c3a..74735effcc 100644 --- a/src/network/networkctl.c +++ b/src/network/networkctl.c @@ -32,6 +32,7 @@ #include "build.h" #include "util.h" #include "pager.h" +#include "lldp.h" #include "rtnl-util.h" #include "udev-util.h" #include "hwdb-util.h" @@ -744,6 +745,261 @@ static int link_status(int argc, char *argv[], void *userdata) { return 0; } +const char *lldp_system_capability_to_string(LLDPSystemCapabilities d) _const_; +LLDPSystemCapabilities lldp_system_capability_from_string(const char *d) _pure_; + +static const char* const lldp_system_capability_table[_LLDP_SYSTEM_CAPABILITIES_MAX + 1] = { + [LLDP_SYSTEM_CAPABILITIES_OTHER] = "O", + [LLDP_SYSTEM_CAPABILITIES_REPEATER] = "P", + [LLDP_SYSTEM_CAPABILITIES_BRIDGE] = "B", + [LLDP_SYSTEM_CAPABILITIES_WLAN_AP] = "W", + [LLDP_SYSTEM_CAPABILITIES_ROUTER] = "R", + [LLDP_SYSTEM_CAPABILITIES_PHONE] = "T", + [LLDP_SYSTEM_CAPABILITIES_DOCSIS] = "D", + [LLDP_SYSTEM_CAPABILITIES_STATION] = "A", + [LLDP_SYSTEM_CAPABILITIES_CVLAN] = "C", + [LLDP_SYSTEM_CAPABILITIES_SVLAN] = "S", + [LLDP_SYSTEM_CAPABILITIES_TPMR] = "M", + [_LLDP_SYSTEM_CAPABILITIES_MAX] = "N/A", +}; + +DEFINE_STRING_TABLE_LOOKUP(lldp_system_capability, LLDPSystemCapabilities); + +static char *lldp_system_caps(uint16_t cap) { + _cleanup_free_ char *s = NULL, *t = NULL; + char *capability; + + t = strdup("[ "); + if (!t) + return NULL; + + if (cap & LLDP_SYSTEM_CAPABILITIES_OTHER) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_OTHER), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_REPEATER) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_REPEATER), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_BRIDGE) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_BRIDGE), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_WLAN_AP) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_WLAN_AP), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_ROUTER) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_ROUTER), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_PHONE) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_PHONE), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_DOCSIS) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_DOCSIS), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_STATION) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_STATION), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_CVLAN) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_CVLAN), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_SVLAN) { + s = strjoin(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_SVLAN), " ", NULL); + if (!s) + return NULL; + + free(t); + t = s; + } + + if (cap & LLDP_SYSTEM_CAPABILITIES_TPMR) { + s = strappend(t, lldp_system_capability_to_string(LLDP_SYSTEM_CAPABILITIES_TPMR)); + if (!s) + return NULL; + + free(t); + } + + if (!s) { + s = strappend(t, lldp_system_capability_to_string(_LLDP_SYSTEM_CAPABILITIES_MAX)); + if (!s) + return NULL; + + free(t); + } + + t = strappend(s, "]"); + if (!s) + return NULL; + + free(s); + capability = t; + + s = NULL; + t = NULL; + + return capability; +} + +static int link_lldp_status(int argc, char *argv[], void *userdata) { + _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL; + _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL; + _cleanup_free_ LinkInfo *links = NULL; + const char *state, *word; + + usec_t time, until, ttl; + uint32_t capability; + char buf[LINE_MAX]; + int i, r, c, j; + size_t ll; + char **s; + + pager_open_if_enabled(); + + r = sd_rtnl_open(&rtnl, 0); + if (r < 0) + return log_error_errno(r, "Failed to connect to netlink: %m"); + + r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0); + if (r < 0) + return rtnl_log_create_error(r); + + r = sd_rtnl_message_request_dump(req, true); + if (r < 0) + return rtnl_log_create_error(r); + + r = sd_rtnl_call(rtnl, req, 0, &reply); + if (r < 0) + return log_error_errno(r, "Failed to enumerate links: %m"); + + c = decode_and_sort_links(reply, &links); + if (c < 0) + return rtnl_log_parse_error(c); + + printf("Capability Codes: (O) - Other, (P) - Repeater, (B) - Bridge , (W) - WLAN Access Point, (R) = Router, (T) - Telephone,\n" + "(D) - Data Over Cable Service Interface Specifications, (A) - Station, (C) - Customer VLAN, (S) - Service VLAN,\n" + "(M) - Two-port MAC Relay (TPMR)\n\n"); + + printf("%s %16s %24s %16s %16s\n", "Local Intf", "Device ID", "Port ID", "TTL", "Capability"); + + for (i = j = 0; i < c; i++) { + _cleanup_free_ char *chassis = NULL, *port = NULL, *cap = NULL, *lldp = NULL; + _cleanup_strv_free_ char **l = NULL; + + r = sd_network_link_get_lldp(links[i].ifindex, &lldp); + if (r < 0) + continue; + + l = strv_split_newlines(lldp); + if (!l) + return -ENOMEM; + + STRV_FOREACH(s, l) { + FOREACH_WORD_QUOTED(word, ll, *s, state) { + _cleanup_free_ char *t = NULL, *a = NULL, *b = NULL; + + t = strndup(word, ll); + if (!t) + return -ENOMEM; + + r = split_pair(t, "=", &a, &b); + if (r < 0) + continue; + + if (streq(a, "_Chassis")) { + + memzero(buf, LINE_MAX); + + chassis = strdup(b); + if (!chassis) + return -ENOMEM; + + } else if (streq(a, "_Port")) { + + port = strdup(b); + if (!port) + return -ENOMEM; + + } else if (streq(a, "_TTL")) { + + time = now(CLOCK_BOOTTIME); + + sscanf(b, "%lu", &until); + + ttl = (until - time) / USEC_PER_SEC; + + + } else if (streq(a, "_CAP")) { + sscanf(b, "%x", &capability); + + cap = lldp_system_caps(capability); + } + + } + + if (until > time) { + printf("%10s %24s %16s %16lu %16s\n", links[i].name, chassis, port, ttl, cap); + j++; + } + } + } + + printf("\nTotal entries displayed: %d\n", j); + + return 0; +} + static void help(void) { printf("%s [OPTIONS...]\n\n" "Query and control the networking subsystem.\n\n" @@ -755,6 +1011,7 @@ static void help(void) { "Commands:\n" " list List links\n" " status LINK Show link status\n" + " lldp Show lldp information\n" , program_invocation_short_name); } @@ -820,6 +1077,7 @@ static int networkctl_main(int argc, char *argv[]) { const Verb verbs[] = { { "list", VERB_ANY, 1, VERB_DEFAULT, list_links }, { "status", 1, VERB_ANY, 0, link_status }, + { "lldp", VERB_ANY, 1, VERB_DEFAULT, link_lldp_status }, {} }; |