networkd-link-bus.c
networkd-link.c
networkd-link.h
+ networkd-lldp-rx.c
+ networkd-lldp-rx.h
networkd-lldp-tx.c
networkd-lldp-tx.h
networkd-manager-bus.c
return link->network->router_prefix_delegation != RADV_PREFIX_DELEGATION_NONE;
}
-static bool link_lldp_rx_enabled(Link *link) {
- assert(link);
-
- if (link->flags & IFF_LOOPBACK)
- return false;
-
- if (link->iftype != ARPHRD_ETHER)
- return false;
-
- if (!link->network)
- return false;
-
- /* LLDP should be handled on bridge slaves as those have a direct
- * connection to their peers not on the bridge master. Linux doesn't
- * even (by default) forward lldp packets to the bridge master.*/
- if (streq_ptr("bridge", link->kind))
- return false;
-
- return link->network->lldp_mode != LLDP_MODE_NO;
-}
-
static bool link_ipv4_forward_enabled(Link *link) {
assert(link);
return 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->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);
-
- 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)
- goto finish;
-
- u = htole64(sz);
- (void) fwrite(&u, 1, sizeof(u), f);
- (void) fwrite(p, 1, sz, f);
- }
-
- 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, sd_lldp_event event, sd_lldp_neighbor *n, void *userdata) {
- Link *link = userdata;
- int r;
-
- assert(link);
-
- (void) link_lldp_save(link);
-
- if (link_lldp_emit_enabled(link) && event == SD_LLDP_EVENT_ADDED) {
- /* If we received information about a new neighbor, restart the LLDP "fast" logic */
-
- log_link_debug(link, "Received LLDP datagram from previously unknown neighbor, restarting 'fast' LLDP transmission.");
-
- r = link_lldp_emit_start(link);
- if (r < 0)
- log_link_warning_errno(link, r, "Failed to restart LLDP transmission: %m");
- }
-}
-
static int link_acquire_ipv6_conf(Link *link) {
int r;
return 0;
}
-static int link_update_lldp(Link *link) {
- int r;
-
- assert(link);
-
- if (!link->lldp)
- return 0;
-
- if (link->flags & IFF_UP) {
- r = sd_lldp_start(link->lldp);
- if (r < 0)
- return log_link_warning_errno(link, r, "Failed to start LLDP: %m");
- if (r > 0)
- log_link_debug(link, "Started LLDP.");
- } else {
- r = sd_lldp_stop(link->lldp);
- if (r < 0)
- return log_link_warning_errno(link, r, "Failed to stop LLDP: %m");
- if (r > 0)
- log_link_debug(link, "Stopped LLDP.");
- }
-
- return r;
-}
-
static int link_configure_can(Link *link) {
int r;
}
if (link_lldp_rx_enabled(link)) {
- r = sd_lldp_new(&link->lldp);
- if (r < 0)
- return r;
-
- r = sd_lldp_set_ifindex(link->lldp, link->ifindex);
- if (r < 0)
- return r;
-
- r = sd_lldp_match_capabilities(link->lldp,
- link->network->lldp_mode == LLDP_MODE_ROUTERS_ONLY ?
- SD_LLDP_SYSTEM_CAPABILITIES_ALL_ROUTERS :
- SD_LLDP_SYSTEM_CAPABILITIES_ALL);
- if (r < 0)
- return r;
-
- r = sd_lldp_set_filter_address(link->lldp, &link->mac);
- if (r < 0)
- return r;
-
- r = sd_lldp_attach_event(link->lldp, NULL, 0);
- if (r < 0)
- return r;
-
- r = sd_lldp_set_callback(link->lldp, lldp_handler, link);
- if (r < 0)
- return r;
-
- r = link_update_lldp(link);
+ r = link_lldp_rx_configure(link);
if (r < 0)
return r;
}
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <net/if.h>
+#include <unistd.h>
+
+#include "fd-util.h"
+#include "fileio.h"
+#include "networkd-link.h"
+#include "networkd-lldp-rx.h"
+#include "networkd-lldp-tx.h"
+#include "networkd-network.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "tmpfile-util.h"
+
+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);
+
+bool link_lldp_rx_enabled(Link *link) {
+ assert(link);
+
+ if (link->flags & IFF_LOOPBACK)
+ return false;
+
+ if (link->iftype != ARPHRD_ETHER)
+ return false;
+
+ if (!link->network)
+ return false;
+
+ /* LLDP should be handled on bridge slaves as those have a direct
+ * connection to their peers not on the bridge master. Linux doesn't
+ * even (by default) forward lldp packets to the bridge master.*/
+ if (streq_ptr("bridge", link->kind))
+ return false;
+
+ return link->network->lldp_mode != LLDP_MODE_NO;
+}
+
+static void lldp_handler(sd_lldp *lldp, sd_lldp_event event, sd_lldp_neighbor *n, void *userdata) {
+ Link *link = userdata;
+ int r;
+
+ assert(link);
+
+ (void) link_lldp_save(link);
+
+ if (link_lldp_emit_enabled(link) && event == SD_LLDP_EVENT_ADDED) {
+ /* If we received information about a new neighbor, restart the LLDP "fast" logic */
+
+ log_link_debug(link, "Received LLDP datagram from previously unknown neighbor, restarting 'fast' LLDP transmission.");
+
+ r = link_lldp_emit_start(link);
+ if (r < 0)
+ log_link_warning_errno(link, r, "Failed to restart LLDP transmission: %m");
+ }
+}
+
+int link_lldp_rx_configure(Link *link) {
+ int r;
+
+ r = sd_lldp_new(&link->lldp);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_set_ifindex(link->lldp, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_match_capabilities(link->lldp,
+ link->network->lldp_mode == LLDP_MODE_ROUTERS_ONLY ?
+ SD_LLDP_SYSTEM_CAPABILITIES_ALL_ROUTERS :
+ SD_LLDP_SYSTEM_CAPABILITIES_ALL);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_set_filter_address(link->lldp, &link->mac);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_attach_event(link->lldp, NULL, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_lldp_set_callback(link->lldp, lldp_handler, link);
+ if (r < 0)
+ return r;
+
+ r = link_update_lldp(link);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int link_update_lldp(Link *link) {
+ int r;
+
+ assert(link);
+
+ if (!link->lldp)
+ return 0;
+
+ if (link->flags & IFF_UP) {
+ r = sd_lldp_start(link->lldp);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Failed to start LLDP: %m");
+ if (r > 0)
+ log_link_debug(link, "Started LLDP.");
+ } else {
+ r = sd_lldp_stop(link->lldp);
+ if (r < 0)
+ return log_link_warning_errno(link, r, "Failed to stop LLDP: %m");
+ if (r > 0)
+ log_link_debug(link, "Stopped LLDP.");
+ }
+
+ return r;
+}
+
+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->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);
+
+ 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)
+ goto finish;
+
+ u = htole64(sz);
+ (void) fwrite(&u, 1, sizeof(u), f);
+ (void) fwrite(p, 1, sz, f);
+ }
+
+ 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;
+}
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include <stdbool.h>
+
+#include "conf-parser.h"
+
+typedef struct Link Link;
+
+typedef enum LLDPMode {
+ LLDP_MODE_NO = 0,
+ LLDP_MODE_YES = 1,
+ LLDP_MODE_ROUTERS_ONLY = 2,
+ _LLDP_MODE_MAX,
+ _LLDP_MODE_INVALID = -1,
+} LLDPMode;
+
+bool link_lldp_rx_enabled(Link *link);
+int link_lldp_rx_configure(Link *link);
+int link_update_lldp(Link *link);
+int link_lldp_save(Link *link);
+
+const char* lldp_mode_to_string(LLDPMode m) _const_;
+LLDPMode lldp_mode_from_string(const char *s) _pure_;
+
+CONFIG_PARSER_PROTOTYPE(config_parse_lldp_mode);
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);
-
int config_parse_iaid(const char *unit,
const char *filename,
unsigned line,
#include "networkd-brvlan.h"
#include "networkd-fdb.h"
#include "networkd-ipv6-proxy-ndp.h"
+#include "networkd-lldp-rx.h"
#include "networkd-lldp-tx.h"
#include "networkd-neighbor.h"
#include "networkd-radv.h"
_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;
-
typedef struct DUID {
/* Value of Type in [DHCP] section */
DUIDType type;
CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_server_ntp);
CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_negative_trust_anchors);
CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_use_domains);
-CONFIG_PARSER_PROTOTYPE(config_parse_lldp_mode);
CONFIG_PARSER_PROTOTYPE(config_parse_section_route_table);
CONFIG_PARSER_PROTOTYPE(config_parse_dhcp_user_class);
CONFIG_PARSER_PROTOTYPE(config_parse_ntp);
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_;
-
const char* radv_prefix_delegation_to_string(RADVPrefixDelegation i) _const_;
RADVPrefixDelegation radv_prefix_delegation_from_string(const char *s) _pure_;
projects / thirdparty / systemd.git / commitdiff
