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-rw-r--r--src/network/networkctl.c293
-rw-r--r--src/network/networkd-link.c124
-rw-r--r--src/network/networkd-network-gperf.gperf2
-rw-r--r--src/network/networkd-network.c10
-rw-r--r--src/network/networkd-network.h14
5 files changed, 192 insertions, 251 deletions
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
index 185bdaf293..eecdebd25d 100644
--- a/src/network/networkctl.c
+++ b/src/network/networkctl.c
@@ -23,6 +23,7 @@
#include "sd-device.h"
#include "sd-hwdb.h"
+#include "sd-lldp.h"
#include "sd-netlink.h"
#include "sd-network.h"
@@ -30,6 +31,7 @@
#include "arphrd-list.h"
#include "device-util.h"
#include "ether-addr-util.h"
+#include "fd-util.h"
#include "hwdb-util.h"
#include "lldp.h"
#include "local-addresses.h"
@@ -38,6 +40,7 @@
#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"
@@ -745,162 +748,29 @@ 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);
- }
+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;
- t = strappend(s, "]");
- if (!t)
+ ret = new(char, ELEMENTSOF(characters) + 1);
+ if (!ret)
return NULL;
- free(s);
- capability = t;
+ for (i = 0; i < ELEMENTSOF(characters); i++)
+ ret[i] = (x & (1U << i)) ? characters[i] : '.';
- s = NULL;
- t = NULL;
-
- return capability;
+ ret[i] = 0;
+ return ret;
}
static int link_lldp_status(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_free_ LinkInfo *links = NULL;
- double ttl = -1;
- uint32_t capability;
int i, r, c, j;
- const char *p;
- char **s;
pager_open_if_enabled();
@@ -925,88 +795,85 @@ static int link_lldp_status(int argc, char *argv[], void *userdata) {
return rtnl_log_parse_error(c);
if (arg_legend)
- printf("%s %16s %24s %16s %16s\n", "Local Intf", "Device ID", "Port ID", "TTL", "Capability");
+ printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
+ "LINK",
+ "CHASSIS ID",
+ "SYSTEM NAME",
+ "CAPS",
+ "PORT ID",
+ "PORT DESCRIPTION");
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) {
-
- p = *s;
- for (;;) {
- _cleanup_free_ char *a = NULL, *b = NULL, *word = NULL;
-
- r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
- if (r < 0)
- return log_error_errno(r, "Failed to parse LLDP syntax \"%s\": %m", *s);
-
- if (r == 0)
- break;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *p = NULL;
- r = split_pair(word, "=", &a, &b);
- if (r < 0)
- continue;
+ if (asprintf(&p, "/run/systemd/netif/lldp/%i", links[i].ifindex) < 0)
+ return log_oom();
- if (streq(a, "_Chassis")) {
- r = free_and_strdup(&chassis, b);
- if (r < 0)
- return r;
-
- } else if (streq(a, "_Port")) {
- r = free_and_strdup(&port, b);
- if (r < 0)
- return r;
-
- } else if (streq(a, "_TTL")) {
- long long unsigned x = 0;
- usec_t time;
-
- r = safe_atollu(b, &x);
- if (r < 0 || (usec_t) x != x)
- return log_warning_errno(r < 0 ? r : ERANGE,
- "Failed to parse TTL \"%s\": %m", b);
+ f = fopen(p, "re");
+ if (!f) {
+ if (errno == ENOENT)
+ continue;
- time = now(clock_boottime_or_monotonic());
- if (x < time)
- continue;
+ log_warning_errno(errno, "Failed to open %s, ignoring: %m", p);
+ continue;
+ }
- ttl = (double) (x - time) / USEC_PER_SEC;
+ for (;;) {
+ 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;
+ _cleanup_free_ void *raw = NULL;
+ uint16_t cc;
+ le64_t u;
+ size_t l;
- } else if (streq(a, "_CAP")) {
- sscanf(b, "%x", &capability);
+ l = fread(&u, 1, sizeof(u), f);
+ if (l == 0 && feof(f)) /* EOF */
+ break;
+ if (l != sizeof(u)) {
+ log_warning("Premature end of file, ignoring.");
+ break;
+ }
- cap = lldp_system_caps(capability);
- }
+ raw = new(uint8_t, le64toh(u));
+ if (!raw)
+ return log_oom();
+ if (fread(raw, 1, le64toh(u), f) != le64toh(u)) {
+ log_warning("Premature end of file, ignoring.");
+ break;
}
- if (ttl >= 0) {
- printf("%10s %24s %16s %16f %16s\n",
- links[i].name,
- strna(chassis), strna(port),
- ttl, cap);
- j++;
+ r = sd_lldp_neighbor_from_raw(&n, raw, le64toh(u));
+ if (r < 0) {
+ log_warning_errno(r, "Failed to parse LLDP data, ignoring: %m");
+ 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);
+
+ 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));
}
}
- if (arg_legend) {
- printf("\nCapability Codes:\n"
- "(O) - Other, (P) - Repeater, (B) - Bridge , (W) - WLAN Access Point, (R) = Router,\n"
- "(T) - Telephone, (D) - Data Over Cable Service Interface Specifications, (A) - Station,\n"
- "(C) - Customer VLAN, (S) - Service VLAN, (M) - Two-port MAC Relay (TPMR)\n\n");
-
- printf("Total entries displayed: %d\n", j);
- }
+ if (arg_legend)
+ printf("\nCapabilities:\n"
+ "o - Other; p - Repeater; b - Bridge; w - WLAN Access Point; r - Router;\n"
+ "t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;\n"
+ "s - Service VLAN, m - Two-port MAC Relay (TPMR)\n\n"
+ "Total entries displayed: %i\n", j);
return 0;
}
@@ -1022,7 +889,7 @@ static void help(void) {
"Commands:\n"
" list List links\n"
" status [LINK...] Show link status\n"
- " lldp Show lldp information\n"
+ " lldp Show lldp neighbors\n"
, program_invocation_short_name);
}
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index e63af3afdb..02fb04e0cb 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -26,6 +26,7 @@
#include "dhcp-lease-internal.h"
#include "fd-util.h"
#include "fileio.h"
+#include "lldp.h"
#include "netlink-util.h"
#include "network-internal.h"
#include "networkd-link.h"
@@ -103,7 +104,7 @@ bool link_lldp_enabled(Link *link) {
if (link->network->bridge)
return false;
- return link->network->lldp;
+ return link->network->lldp_mode != LLDP_MODE_NO;
}
static bool link_ipv4_forward_enabled(Link *link) {
@@ -347,18 +348,15 @@ static int link_new(Manager *manager, sd_netlink_message *message, Link **ret) {
r = sd_netlink_message_read_ether_addr(message, IFLA_ADDRESS, &link->mac);
if (r < 0)
- log_link_debug(link, "MAC address not found for new device, continuing without");
+ log_link_debug_errno(link, r, "MAC address not found for new device, continuing without");
- r = asprintf(&link->state_file, "/run/systemd/netif/links/%d", link->ifindex);
- if (r < 0)
+ if (asprintf(&link->state_file, "/run/systemd/netif/links/%d", link->ifindex) < 0)
return -ENOMEM;
- r = asprintf(&link->lease_file, "/run/systemd/netif/leases/%d", link->ifindex);
- if (r < 0)
+ if (asprintf(&link->lease_file, "/run/systemd/netif/leases/%d", link->ifindex) < 0)
return -ENOMEM;
- r = asprintf(&link->lldp_file, "/run/systemd/netif/lldp/%d", link->ifindex);
- if (r < 0)
+ if (asprintf(&link->lldp_file, "/run/systemd/netif/lldp/%d", link->ifindex) < 0)
return -ENOMEM;
r = hashmap_ensure_allocated(&manager->links, NULL);
@@ -409,7 +407,6 @@ static void link_free(Link *link) {
free(link->lease_file);
sd_lldp_unref(link->lldp);
-
free(link->lldp_file);
sd_ipv4ll_unref(link->ipv4ll);
@@ -1218,7 +1215,7 @@ static int link_set_bridge(Link *link) {
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_UNICAST_FLOOD attribute: %m");
- if(link->network->cost != 0) {
+ if (link->network->cost != 0) {
r = sd_netlink_message_append_u32(req, IFLA_BRPORT_COST, link->network->cost);
if (r < 0)
return log_link_error_errno(link, r, "Could not append IFLA_BRPORT_COST attribute: %m");
@@ -1237,24 +1234,83 @@ static int link_set_bridge(Link *link) {
return r;
}
-static void lldp_handler(sd_lldp *lldp, int event, void *userdata) {
- Link *link = userdata;
- int r;
+static int link_lldp_save(Link *link) {
+ _cleanup_free_ char *temp_path = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ sd_lldp_neighbor **l = NULL;
+ int n = 0, r, i;
assert(link);
- assert(link->network);
- assert(link->manager);
+ assert(link->lldp_file);
+
+ if (!link->lldp) {
+ (void) unlink(link->lldp_file);
+ return 0;
+ }
+
+ r = sd_lldp_get_neighbors(link->lldp, &l);
+ if (r < 0)
+ goto finish;
+ if (r == 0) {
+ (void) unlink(link->lldp_file);
+ goto finish;
+ }
+
+ n = r;
+
+ r = fopen_temporary(link->lldp_file, &f, &temp_path);
+ if (r < 0)
+ goto finish;
+
+ fchmod(fileno(f), 0644);
- switch (event) {
- case SD_LLDP_EVENT_UPDATE_INFO:
- r = sd_lldp_save(link->lldp, link->lldp_file);
+ for (i = 0; i < n; i++) {
+ const void *p;
+ le64_t u;
+ size_t sz;
+
+ r = sd_lldp_neighbor_get_raw(l[i], &p, &sz);
if (r < 0)
- log_link_warning_errno(link, r, "Could not save LLDP: %m");
+ goto finish;
+
+ u = htole64(sz);
+ (void) fwrite(&u, 1, sizeof(u), f);
+ (void) fwrite(p, 1, sz, f);
+ }
- break;
- default:
- break;
+ r = fflush_and_check(f);
+ if (r < 0)
+ goto finish;
+
+ if (rename(temp_path, link->lldp_file) < 0) {
+ r = -errno;
+ goto finish;
}
+
+finish:
+ if (r < 0) {
+ (void) unlink(link->lldp_file);
+ if (temp_path)
+ (void) unlink(temp_path);
+
+ log_link_error_errno(link, r, "Failed to save LLDP data to %s: %m", link->lldp_file);
+ }
+
+ if (l) {
+ for (i = 0; i < n; i++)
+ sd_lldp_neighbor_unref(l[i]);
+ free(l);
+ }
+
+ return r;
+}
+
+static void lldp_handler(sd_lldp *lldp, void *userdata) {
+ Link *link = userdata;
+
+ assert(link);
+
+ (void) link_lldp_save(link);
}
static int link_acquire_ipv6_conf(Link *link) {
@@ -2116,7 +2172,14 @@ static int link_configure(Link *link) {
}
if (link_lldp_enabled(link)) {
- r = sd_lldp_new(link->ifindex, &link->lldp);
+ r = sd_lldp_new(&link->lldp, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_match_capabilities(link->lldp,
+ link->network->lldp_mode == LLDP_MODE_ROUTERS_ONLY ?
+ _LLDP_SYSTEM_CAPABILITIES_ALL_ROUTERS :
+ _LLDP_SYSTEM_CAPABILITIES_ALL);
if (r < 0)
return r;
@@ -2714,6 +2777,8 @@ int link_save(Link *link) {
return 0;
}
+ link_lldp_save(link);
+
admin_state = link_state_to_string(link->state);
assert(admin_state);
@@ -2953,19 +3018,6 @@ int link_save(Link *link) {
}
}
- if (link->lldp) {
- assert(link->network);
-
- r = sd_lldp_save(link->lldp, link->lldp_file);
- if (r < 0)
- goto fail;
-
- fprintf(f,
- "LLDP_FILE=%s\n",
- link->lldp_file);
- } else
- unlink(link->lldp_file);
-
r = fflush_and_check(f);
if (r < 0)
goto fail;
diff --git a/src/network/networkd-network-gperf.gperf b/src/network/networkd-network-gperf.gperf
index 409df1709f..d67da5d7b6 100644
--- a/src/network/networkd-network-gperf.gperf
+++ b/src/network/networkd-network-gperf.gperf
@@ -40,7 +40,7 @@ Network.DHCPServer, config_parse_bool,
Network.LinkLocalAddressing, config_parse_address_family_boolean, 0, offsetof(Network, link_local)
Network.IPv4LLRoute, config_parse_bool, 0, offsetof(Network, ipv4ll_route)
Network.IPv6Token, config_parse_ipv6token, 0, offsetof(Network, ipv6_token)
-Network.LLDP, config_parse_bool, 0, offsetof(Network, lldp)
+Network.LLDP, config_parse_lldp_mode, 0, offsetof(Network, lldp_mode)
Network.Address, config_parse_address, 0, 0
Network.Gateway, config_parse_gateway, 0, 0
Network.Domains, config_parse_domains, 0, 0
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index 4315790093..a6512d26e5 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -1013,3 +1013,13 @@ static const char* const dhcp_use_domains_table[_DHCP_USE_DOMAINS_MAX] = {
};
DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dhcp_use_domains, DHCPUseDomains, DHCP_USE_DOMAINS_YES);
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_lldp_mode, lldp_mode, LLDPMode, "Failed to parse LLDP= setting.");
+
+static const char* const lldp_mode_table[_LLDP_MODE_MAX] = {
+ [LLDP_MODE_NO] = "no",
+ [LLDP_MODE_YES] = "yes",
+ [LLDP_MODE_ROUTERS_ONLY] = "routers-only",
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(lldp_mode, LLDPMode, LLDP_MODE_YES);
diff --git a/src/network/networkd-network.h b/src/network/networkd-network.h
index 03c3f206c3..9dcebfbf7b 100644
--- a/src/network/networkd-network.h
+++ b/src/network/networkd-network.h
@@ -58,6 +58,14 @@ typedef enum DHCPUseDomains {
_DHCP_USE_DOMAINS_INVALID = -1,
} DHCPUseDomains;
+typedef enum LLDPMode {
+ LLDP_MODE_NO = 0,
+ LLDP_MODE_YES = 1,
+ LLDP_MODE_ROUTERS_ONLY = 2,
+ _LLDP_MODE_MAX,
+ _LLDP_MODE_INVALID = -1,
+} LLDPMode;
+
struct Network {
Manager *manager;
@@ -137,7 +145,7 @@ struct Network {
struct ether_addr *mac;
unsigned mtu;
- bool lldp;
+ LLDPMode lldp_mode;
LIST_HEAD(Address, static_addresses);
LIST_HEAD(Route, static_routes);
@@ -181,6 +189,7 @@ int config_parse_dhcp_server_dns(const char *unit, const char *filename, unsigne
int config_parse_dhcp_server_ntp(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_dnssec_negative_trust_anchors(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
int config_parse_dhcp_use_domains(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+int config_parse_lldp_mode(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
/* Legacy IPv4LL support */
int config_parse_ipv4ll(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
@@ -197,3 +206,6 @@ IPv6PrivacyExtensions ipv6_privacy_extensions_from_string(const char *s) _pure_;
const char* dhcp_use_domains_to_string(DHCPUseDomains p) _const_;
DHCPUseDomains dhcp_use_domains_from_string(const char *s) _pure_;
+
+const char* lldp_mode_to_string(LLDPMode m) _const_;
+LLDPMode lldp_mode_from_string(const char *s) _pure_;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-08-12 12:24:14 +0000