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-rw-r--r--src/network/networkd-dhcp6.c146
-rw-r--r--src/network/networkd-link.c16
-rw-r--r--src/network/networkd-link.h7
-rw-r--r--src/network/networkd-ndisc.c88
4 files changed, 111 insertions, 146 deletions
diff --git a/src/network/networkd-dhcp6.c b/src/network/networkd-dhcp6.c
index fb93e6606e..57c81cb646 100644
--- a/src/network/networkd-dhcp6.c
+++ b/src/network/networkd-dhcp6.c
@@ -25,7 +25,6 @@
#include "networkd-link.h"
#include "network-internal.h"
-#include "sd-icmp6-nd.h"
#include "sd-dhcp6-client.h"
static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link);
@@ -64,8 +63,7 @@ static int dhcp6_address_handler(sd_netlink *rtnl, sd_netlink_message *m,
}
static int dhcp6_address_change(Link *link, struct in6_addr *ip6_addr,
- uint8_t prefixlen, uint32_t lifetime_preferred,
- uint32_t lifetime_valid) {
+ uint32_t lifetime_preferred, uint32_t lifetime_valid) {
int r;
_cleanup_address_free_ Address *addr = NULL;
@@ -77,14 +75,14 @@ static int dhcp6_address_change(Link *link, struct in6_addr *ip6_addr,
memcpy(&addr->in_addr.in6, ip6_addr, sizeof(*ip6_addr));
addr->flags = IFA_F_NOPREFIXROUTE;
- addr->prefixlen = prefixlen;
+ addr->prefixlen = 128;
addr->cinfo.ifa_prefered = lifetime_preferred;
addr->cinfo.ifa_valid = lifetime_valid;
log_link_info(link,
- "DHCPv6 address "SD_ICMP6_ND_ADDRESS_FORMAT_STR"/%d timeout preferred %d valid %d",
- SD_ICMP6_ND_ADDRESS_FORMAT_VAL(addr->in_addr.in6),
+ "DHCPv6 address "SD_NDISC_ADDRESS_FORMAT_STR"/%d timeout preferred %d valid %d",
+ SD_NDISC_ADDRESS_FORMAT_VAL(addr->in_addr.in6),
addr->prefixlen, lifetime_preferred, lifetime_valid);
r = address_configure(addr, link, dhcp6_address_handler, true);
@@ -99,7 +97,6 @@ static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link) {
sd_dhcp6_lease *lease;
struct in6_addr ip6_addr;
uint32_t lifetime_preferred, lifetime_valid;
- uint8_t prefixlen;
r = sd_dhcp6_client_get_lease(client, &lease);
if (r < 0)
@@ -111,18 +108,7 @@ static int dhcp6_lease_address_acquired(sd_dhcp6_client *client, Link *link) {
&lifetime_preferred,
&lifetime_valid) >= 0) {
- r = sd_icmp6_ra_get_prefixlen(link->icmp6_router_discovery,
- &ip6_addr, &prefixlen);
- if (r < 0 && r != -EADDRNOTAVAIL) {
- log_link_warning_errno(link, r, "Could not get prefix information: %m");
- return r;
- }
-
- if (r == -EADDRNOTAVAIL)
- prefixlen = 128;
-
- r = dhcp6_address_change(link, &ip6_addr, prefixlen,
- lifetime_preferred, lifetime_valid);
+ r = dhcp6_address_change(link, &ip6_addr, lifetime_preferred, lifetime_valid);
if (r < 0)
return r;
}
@@ -179,34 +165,29 @@ static void dhcp6_handler(sd_dhcp6_client *client, int event, void *userdata) {
link_check_ready(link);
}
-static int dhcp6_configure(Link *link, int event) {
+int dhcp6_configure(Link *link, bool inf_req) {
int r;
bool information_request;
assert_return(link, -EINVAL);
- assert_return(IN_SET(event, SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_TIMEOUT,
- SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER,
- SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_MANAGED), -EINVAL);
link->dhcp6_configured = false;
if (link->dhcp6_client) {
- r = sd_dhcp6_client_get_information_request(link->dhcp6_client,
- &information_request);
+ r = sd_dhcp6_client_get_information_request(link->dhcp6_client, &information_request);
if (r < 0) {
log_link_warning_errno(link, r, "Could not get DHCPv6 Information request setting: %m");
goto error;
}
- if (information_request && event != SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER) {
+ if (information_request && !inf_req) {
r = sd_dhcp6_client_stop(link->dhcp6_client);
if (r < 0) {
log_link_warning_errno(link, r, "Could not stop DHCPv6 while setting Managed mode: %m");
goto error;
}
- r = sd_dhcp6_client_set_information_request(link->dhcp6_client,
- false);
+ r = sd_dhcp6_client_set_information_request(link->dhcp6_client, false);
if (r < 0) {
log_link_warning_errno(link, r, "Could not unset DHCPv6 Information request: %m");
goto error;
@@ -249,9 +230,8 @@ static int dhcp6_configure(Link *link, int event) {
if (r < 0)
goto error;
- if (event == SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER) {
- r = sd_dhcp6_client_set_information_request(link->dhcp6_client,
- true);
+ if (inf_req) {
+ r = sd_dhcp6_client_set_information_request(link->dhcp6_client, true);
if (r < 0)
goto error;
}
@@ -266,107 +246,3 @@ static int dhcp6_configure(Link *link, int event) {
link->dhcp6_client = sd_dhcp6_client_unref(link->dhcp6_client);
return r;
}
-
-static int dhcp6_prefix_expired(Link *link) {
- int r;
- sd_dhcp6_lease *lease;
- struct in6_addr *expired_prefix, ip6_addr;
- uint8_t expired_prefixlen;
- uint32_t lifetime_preferred, lifetime_valid;
-
- r = sd_icmp6_ra_get_expired_prefix(link->icmp6_router_discovery,
- &expired_prefix, &expired_prefixlen);
- if (r < 0)
- return r;
-
- r = sd_dhcp6_client_get_lease(link->dhcp6_client, &lease);
- if (r < 0)
- return r;
-
- log_link_info(link, "IPv6 prefix "SD_ICMP6_ND_ADDRESS_FORMAT_STR"/%d expired",
- SD_ICMP6_ND_ADDRESS_FORMAT_VAL(*expired_prefix),
- expired_prefixlen);
-
- sd_dhcp6_lease_reset_address_iter(lease);
-
- while (sd_dhcp6_lease_get_address(lease, &ip6_addr,
- &lifetime_preferred,
- &lifetime_valid) >= 0) {
-
- r = sd_icmp6_prefix_match(expired_prefix, expired_prefixlen,
- &ip6_addr);
- if (r < 0)
- continue;
-
- log_link_info(link, "IPv6 prefix length updated "SD_ICMP6_ND_ADDRESS_FORMAT_STR"/%d", SD_ICMP6_ND_ADDRESS_FORMAT_VAL(ip6_addr), 128);
-
- dhcp6_address_change(link, &ip6_addr, 128, lifetime_preferred, lifetime_valid);
- }
-
- return 0;
-}
-
-static void icmp6_router_handler(sd_icmp6_nd *nd, int event, void *userdata) {
- Link *link = userdata;
-
- assert(link);
- assert(link->network);
- assert(link->manager);
-
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
- return;
-
- switch(event) {
- case SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_NONE:
- return;
-
- case SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_TIMEOUT:
- case SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_OTHER:
- case SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_MANAGED:
- dhcp6_configure(link, event);
-
- break;
-
- case SD_ICMP6_ND_EVENT_ROUTER_ADVERTISMENT_PREFIX_EXPIRED:
- if (!link->rtnl_extended_attrs)
- dhcp6_prefix_expired(link);
-
- break;
-
- default:
- if (event < 0)
- log_link_warning_errno(link, event, "ICMPv6 error: %m");
- else
- log_link_warning(link, "ICMPv6 unknown event: %d", event);
-
- break;
- }
-
-}
-
-int icmp6_configure(Link *link) {
- int r;
-
- assert_return(link, -EINVAL);
-
- r = sd_icmp6_nd_new(&link->icmp6_router_discovery);
- if (r < 0)
- return r;
-
- r = sd_icmp6_nd_attach_event(link->icmp6_router_discovery, NULL, 0);
- if (r < 0)
- return r;
-
- r = sd_icmp6_nd_set_mac(link->icmp6_router_discovery, &link->mac);
- if (r < 0)
- return r;
-
- r = sd_icmp6_nd_set_index(link->icmp6_router_discovery, link->ifindex);
- if (r < 0)
- return r;
-
- r = sd_icmp6_nd_set_callback(link->icmp6_router_discovery,
- icmp6_router_handler, link);
-
- return r;
-}
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index ec4b082542..09f4bd7029 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -370,7 +370,7 @@ static void link_free(Link *link) {
sd_ipv4ll_unref(link->ipv4ll);
sd_dhcp6_client_unref(link->dhcp6_client);
- sd_icmp6_nd_unref(link->icmp6_router_discovery);
+ sd_ndisc_unref(link->ndisc_router_discovery);
if (link->manager)
hashmap_remove(link->manager->links, INT_TO_PTR(link->ifindex));
@@ -481,16 +481,16 @@ static int link_stop_clients(Link *link) {
r = log_link_warning_errno(link, r, "Could not stop IPv4 link-local: %m");
}
- if(link->icmp6_router_discovery) {
+ if(link->ndisc_router_discovery) {
if (link->dhcp6_client) {
k = sd_dhcp6_client_stop(link->dhcp6_client);
if (k < 0)
r = log_link_warning_errno(link, r, "Could not stop DHCPv6 client: %m");
}
- k = sd_icmp6_nd_stop(link->icmp6_router_discovery);
+ k = sd_ndisc_stop(link->ndisc_router_discovery);
if (k < 0)
- r = log_link_warning_errno(link, r, "Could not stop ICMPv6 router discovery: %m");
+ r = log_link_warning_errno(link, r, "Could not stop IPv6 Router Discovery: %m");
}
if (link->lldp) {
@@ -1238,13 +1238,13 @@ static int link_acquire_conf(Link *link) {
}
if (link_dhcp6_enabled(link)) {
- assert(link->icmp6_router_discovery);
+ assert(link->ndisc_router_discovery);
log_link_debug(link, "Discovering IPv6 routers");
- r = sd_icmp6_router_solicitation_start(link->icmp6_router_discovery);
+ r = sd_ndisc_router_discovery_start(link->ndisc_router_discovery);
if (r < 0)
- return log_link_warning_errno(link, r, "Could not start IPv6 router discovery: %m");
+ return log_link_warning_errno(link, r, "Could not start IPv6 Router Discovery: %m");
}
if (link_lldp_enabled(link)) {
@@ -2002,7 +2002,7 @@ static int link_configure(Link *link) {
}
if (link_dhcp6_enabled(link)) {
- r = icmp6_configure(link);
+ r = ndisc_configure(link);
if (r < 0)
return r;
}
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h
index af2ba11701..5c92df4ca8 100644
--- a/src/network/networkd-link.h
+++ b/src/network/networkd-link.h
@@ -26,7 +26,7 @@
#include "sd-dhcp-client.h"
#include "sd-dhcp-server.h"
#include "sd-ipv4ll.h"
-#include "sd-icmp6-nd.h"
+#include "sd-ndisc.h"
#include "sd-dhcp6-client.h"
#include "sd-lldp.h"
@@ -104,7 +104,7 @@ struct Link {
sd_dhcp_server *dhcp_server;
- sd_icmp6_nd *icmp6_router_discovery;
+ sd_ndisc *ndisc_router_discovery;
sd_dhcp6_client *dhcp6_client;
bool rtnl_extended_attrs;
@@ -145,7 +145,8 @@ int link_set_timezone(Link *link, const char *timezone);
int ipv4ll_configure(Link *link);
int dhcp4_configure(Link *link);
-int icmp6_configure(Link *link);
+int dhcp6_configure(Link *link, bool information_request);
+int ndisc_configure(Link *link);
bool link_lldp_enabled(Link *link);
bool link_ipv4ll_enabled(Link *link);
diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
new file mode 100644
index 0000000000..637c29973e
--- /dev/null
+++ b/src/network/networkd-ndisc.c
@@ -0,0 +1,88 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2014 Intel Corporation. All rights reserved.
+
+ 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 <netinet/ether.h>
+#include <linux/if.h>
+
+#include "networkd-link.h"
+
+#include "sd-ndisc.h"
+
+static void ndisc_router_handler(sd_ndisc *nd, int event, void *userdata) {
+ Link *link = userdata;
+
+ assert(link);
+ assert(link->network);
+ assert(link->manager);
+
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
+ return;
+
+ switch(event) {
+ case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_NONE:
+ return;
+
+ case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_OTHER:
+ dhcp6_configure(link, true);
+
+ break;
+ case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_TIMEOUT:
+ case SD_NDISC_EVENT_ROUTER_ADVERTISMENT_MANAGED:
+ dhcp6_configure(link, false);
+
+ break;
+
+ default:
+ if (event < 0)
+ log_link_warning_errno(link, event, "IPv6 Neighbor Discover error: %m");
+ else
+ log_link_warning(link, "IPv6 Neighbor Discovery unknown event: %d", event);
+
+ break;
+ }
+}
+
+int ndisc_configure(Link *link) {
+ int r;
+
+ assert_return(link, -EINVAL);
+
+ r = sd_ndisc_new(&link->ndisc_router_discovery);
+ if (r < 0)
+ return r;
+
+ r = sd_ndisc_attach_event(link->ndisc_router_discovery, NULL, 0);
+ if (r < 0)
+ return r;
+
+ r = sd_ndisc_set_mac(link->ndisc_router_discovery, &link->mac);
+ if (r < 0)
+ return r;
+
+ r = sd_ndisc_set_index(link->ndisc_router_discovery, link->ifindex);
+ if (r < 0)
+ return r;
+
+ r = sd_ndisc_set_callback(link->ndisc_router_discovery,
+ ndisc_router_handler, link);
+
+ return r;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-01-11 17:15:54 +0000