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-rw-r--r--src/libsystemd-network/dhcp6-network.c22
-rw-r--r--src/libsystemd-network/sd-dhcp6-client.c19
-rw-r--r--src/libsystemd-network/sd-ndisc.c2
-rw-r--r--src/libsystemd-network/test-dhcp6-client.c6
-rw-r--r--src/network/networkd-address.c6
-rw-r--r--src/network/networkd-dhcp6.c3
-rw-r--r--src/network/networkd-link.c20
-rw-r--r--src/network/networkd-link.h4
-rw-r--r--src/network/networkd-ndisc.c6
-rw-r--r--src/systemd/sd-dhcp6-client.h1
10 files changed, 58 insertions, 31 deletions
diff --git a/src/libsystemd-network/dhcp6-network.c b/src/libsystemd-network/dhcp6-network.c
index 318ee9c4b4..fd2d60c9d5 100644
--- a/src/libsystemd-network/dhcp6-network.c
+++ b/src/libsystemd-network/dhcp6-network.c
@@ -33,36 +33,32 @@
#include "socket-util.h"
int dhcp6_network_bind_udp_socket(int index, struct in6_addr *local_address) {
- struct in6_pktinfo pktinfo = {
- .ipi6_ifindex = index,
- };
union sockaddr_union src = {
.in6.sin6_family = AF_INET6,
.in6.sin6_port = htobe16(DHCP6_PORT_CLIENT),
- .in6.sin6_addr = IN6ADDR_ANY_INIT,
+ .in6.sin6_scope_id = index,
};
_cleanup_close_ int s = -1;
int r, off = 0, on = 1;
- if (local_address)
- memcpy(&src.in6.sin6_addr, local_address,
- sizeof(src.in6.sin6_addr));
+ assert(index > 0);
+ assert(local_address);
+
+ src.in6.sin6_addr = *local_address;
- s = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK,
- IPPROTO_UDP);
+ s = socket(AF_INET6, SOCK_DGRAM | SOCK_CLOEXEC | SOCK_NONBLOCK, IPPROTO_UDP);
if (s < 0)
return -errno;
- r = setsockopt(s, IPPROTO_IPV6, IPV6_PKTINFO, &pktinfo,
- sizeof(pktinfo));
+ r = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
if (r < 0)
return -errno;
- r = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
+ r = setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &off, sizeof(off));
if (r < 0)
return -errno;
- r = setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &off, sizeof(off));
+ r = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
if (r < 0)
return -errno;
diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c
index a443bb3a7a..801331d270 100644
--- a/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libsystemd-network/sd-dhcp6-client.c
@@ -32,6 +32,7 @@
#include "dhcp6-lease-internal.h"
#include "dhcp6-protocol.h"
#include "fd-util.h"
+#include "in-addr-util.h"
#include "network-internal.h"
#include "random-util.h"
#include "string-table.h"
@@ -46,6 +47,7 @@ struct sd_dhcp6_client {
sd_event *event;
int event_priority;
int index;
+ struct in6_addr local_address;
uint8_t mac_addr[MAX_MAC_ADDR_LEN];
size_t mac_addr_len;
uint16_t arp_type;
@@ -133,6 +135,18 @@ int sd_dhcp6_client_set_index(sd_dhcp6_client *client, int interface_index) {
return 0;
}
+int sd_dhcp6_client_set_local_address(sd_dhcp6_client *client, const struct in6_addr *local_address) {
+ assert_return(client, -EINVAL);
+ assert_return(local_address, -EINVAL);
+ assert_return(in_addr_is_link_local(AF_INET6, (const union in_addr_union *) local_address) > 0, -EINVAL);
+
+ assert_return(IN_SET(client->state, DHCP6_STATE_STOPPED), -EBUSY);
+
+ client->local_address = *local_address;
+
+ return 0;
+}
+
int sd_dhcp6_client_set_mac(
sd_dhcp6_client *client,
const uint8_t *addr, size_t addr_len,
@@ -1135,9 +1149,10 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) {
assert_return(client, -EINVAL);
assert_return(client->event, -EINVAL);
assert_return(client->index > 0, -EINVAL);
+ assert_return(in_addr_is_link_local(AF_INET6, (const union in_addr_union *) &client->local_address) > 0, -EINVAL);
if (!IN_SET(client->state, DHCP6_STATE_STOPPED))
- return -EALREADY;
+ return -EBUSY;
r = client_reset(client);
if (r < 0)
@@ -1151,7 +1166,7 @@ int sd_dhcp6_client_start(sd_dhcp6_client *client) {
if (r < 0)
return r;
- r = dhcp6_network_bind_udp_socket(client->index, NULL);
+ r = dhcp6_network_bind_udp_socket(client->index, &client->local_address);
if (r < 0)
return r;
diff --git a/src/libsystemd-network/sd-ndisc.c b/src/libsystemd-network/sd-ndisc.c
index 0881973e7f..6703d87bc4 100644
--- a/src/libsystemd-network/sd-ndisc.c
+++ b/src/libsystemd-network/sd-ndisc.c
@@ -628,7 +628,7 @@ int sd_ndisc_router_discovery_start(sd_ndisc *nd) {
assert(nd->event);
if (nd->state != NDISC_STATE_IDLE)
- return -EINVAL;
+ return -EBUSY;
if (nd->index < 1)
return -EINVAL;
diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index 17ed6d58f3..9e05fde8f6 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -562,6 +562,7 @@ static void test_client_information_cb(sd_dhcp6_client *client, int event,
sd_event *e = userdata;
sd_dhcp6_lease *lease;
struct in6_addr *addrs;
+ struct in6_addr address = { { { 0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01 } } };
char **domains;
assert_se(e);
@@ -590,6 +591,8 @@ static void test_client_information_cb(sd_dhcp6_client *client, int event,
assert_se(sd_dhcp6_client_set_callback(client,
test_client_solicit_cb, e) >= 0);
+ assert_se(sd_dhcp6_client_set_local_address(client, &address) >= 0);
+
assert_se(sd_dhcp6_client_start(client) >= 0);
}
@@ -701,6 +704,7 @@ int dhcp6_network_bind_udp_socket(int index, struct in6_addr *local_address) {
static int test_client_solicit(sd_event *e) {
sd_dhcp6_client *client;
usec_t time_now = now(clock_boottime_or_monotonic());
+ struct in6_addr address = { { { 0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x01 } } };
int val = true;
if (verbose)
@@ -729,6 +733,8 @@ static int test_client_solicit(sd_event *e) {
time_now + 2 * USEC_PER_SEC, 0,
test_hangcheck, NULL) >= 0);
+ assert_se(sd_dhcp6_client_set_local_address(client, &address) >= 0);
+
assert_se(sd_dhcp6_client_start(client) >= 0);
sd_event_loop(e);
diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
index c0562e5788..1ce1f4d8d6 100644
--- a/src/network/networkd-address.c
+++ b/src/network/networkd-address.c
@@ -347,9 +347,9 @@ int address_update(Address *address, unsigned char flags, unsigned char scope, s
link_check_ready(address->link);
if (address->family == AF_INET6 &&
- in_addr_is_link_local(AF_INET6, &address->in_addr) &&
- !address->link->ipv6ll_address) {
- r = link_ipv6ll_gained(address->link);
+ in_addr_is_link_local(AF_INET6, &address->in_addr) > 0 &&
+ in_addr_is_null(AF_INET6, (const union in_addr_union*) &address->link->ipv6ll_address) > 0) {
+ r = link_ipv6ll_gained(address->link, &address->in_addr.in6);
if (r < 0)
return r;
}
diff --git a/src/network/networkd-dhcp6.c b/src/network/networkd-dhcp6.c
index f83ff54369..e67e51f7ef 100644
--- a/src/network/networkd-dhcp6.c
+++ b/src/network/networkd-dhcp6.c
@@ -211,6 +211,9 @@ int dhcp6_configure(Link *link) {
assert(link);
+ if (link->dhcp6_client)
+ return 0;
+
r = sd_dhcp6_client_new(&client);
if (r < 0)
return r;
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index a415035887..01d5942ce5 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -615,7 +615,7 @@ void link_check_ready(Link *link) {
return;
if (link_ipv6ll_enabled(link))
- if (!link->ipv6ll_address)
+ if (in_addr_is_null(AF_INET6, (const union in_addr_union*) &link->ipv6ll_address) > 0)
return;
if ((link_dhcp4_enabled(link) && !link_dhcp6_enabled(link) &&
@@ -1260,11 +1260,16 @@ static int link_acquire_ipv6_conf(Link *link) {
if (link_dhcp6_enabled(link)) {
assert(link->dhcp6_client);
+ assert(in_addr_is_link_local(AF_INET6, (const union in_addr_union*)&link->ipv6ll_address) > 0);
log_link_debug(link, "Acquiring DHCPv6 lease");
+ r = sd_dhcp6_client_set_local_address(link->dhcp6_client, &link->ipv6ll_address);
+ if (r < 0 && r != -EBUSY)
+ return log_link_warning_errno(link, r, "Could not set IPv6LL address in DHCP client: %m");
+
r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0)
+ if (r < 0 && r != -EBUSY)
return log_link_warning_errno(link, r, "Could not acquire DHCPv6 lease: %m");
}
@@ -1274,7 +1279,7 @@ static int link_acquire_ipv6_conf(Link *link) {
log_link_debug(link, "Discovering IPv6 routers");
r = sd_ndisc_router_discovery_start(link->ndisc_router_discovery);
- if (r < 0)
+ if (r < 0 && r != -EBUSY)
return log_link_warning_errno(link, r, "Could not start IPv6 Router Discovery: %m");
}
@@ -2089,7 +2094,8 @@ static int link_configure(Link *link) {
return r;
}
- if (link_dhcp6_enabled(link)) {
+ if (link_dhcp6_enabled(link) ||
+ link_ipv6_accept_ra_enabled(link)) {
r = dhcp6_configure(link);
if (r < 0)
return r;
@@ -2121,7 +2127,7 @@ static int link_configure(Link *link) {
if (r < 0)
return r;
- if (link->ipv6ll_address) {
+ if (in_addr_is_null(AF_INET6, (const union in_addr_union*) &link->ipv6ll_address) == 0) {
r = link_acquire_ipv6_conf(link);
if (r < 0)
return r;
@@ -2472,14 +2478,14 @@ failed:
return r;
}
-int link_ipv6ll_gained(Link *link) {
+int link_ipv6ll_gained(Link *link, const struct in6_addr *address) {
int r;
assert(link);
log_link_info(link, "Gained IPv6LL");
- link->ipv6ll_address = true;
+ link->ipv6ll_address = *address;
link_check_ready(link);
if (!IN_SET(link->state, LINK_STATE_PENDING, LINK_STATE_PENDING, LINK_STATE_UNMANAGED, LINK_STATE_FAILED)) {
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h
index b564bcbca0..aa2235b11d 100644
--- a/src/network/networkd-link.h
+++ b/src/network/networkd-link.h
@@ -69,6 +69,7 @@ struct Link {
char *ifname;
char *state_file;
struct ether_addr mac;
+ struct in6_addr ipv6ll_address;
uint32_t mtu;
struct udev_device *udev_device;
@@ -101,7 +102,6 @@ struct Link {
sd_ipv4ll *ipv4ll;
bool ipv4ll_address:1;
bool ipv4ll_route:1;
- bool ipv6ll_address:1;
bool static_configured;
@@ -144,7 +144,7 @@ int link_save(Link *link);
int link_carrier_reset(Link *link);
bool link_has_carrier(Link *link);
-int link_ipv6ll_gained(Link *link);
+int link_ipv6ll_gained(Link *link, const struct in6_addr *address);
int link_set_mtu(Link *link, uint32_t mtu);
int link_set_hostname(Link *link, const char *hostname);
diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index 2ff87c32eb..ce9e513ceb 100644
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -75,7 +75,7 @@ static void ndisc_prefix_autonomous_handler(sd_ndisc *nd, const struct in6_addr
address->family = AF_INET6;
address->in_addr.in6 = *prefix;
if (in_addr_is_null(AF_INET6, (const union in_addr_union *) &link->network->ipv6_token) == 0)
- memcpy(&address->in_addr.in6 + 8, &link->network->ipv6_token + 8, 8);
+ memcpy(((char *)&address->in_addr.in6) + 8, ((char *)&link->network->ipv6_token) + 8, 8);
else {
/* see RFC4291 section 2.5.1 */
address->in_addr.in6.__in6_u.__u6_addr8[8] = link->mac.ether_addr_octet[0];
@@ -159,7 +159,7 @@ static void ndisc_router_handler(sd_ndisc *nd, uint8_t flags, const struct in6_a
dhcp6_request_address(link);
r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0 && r != -EALREADY)
+ if (r < 0 && r != -EBUSY)
log_link_warning_errno(link, r, "Starting DHCPv6 client on NDisc request failed: %m");
}
@@ -205,7 +205,7 @@ static void ndisc_handler(sd_ndisc *nd, int event, void *userdata) {
dhcp6_request_address(link);
r = sd_dhcp6_client_start(link->dhcp6_client);
- if (r < 0 && r != -EALREADY)
+ if (r < 0 && r != -EBUSY)
log_link_warning_errno(link, r, "Starting DHCPv6 client after NDisc timeout failed: %m");
link->ndisc_configured = true;
diff --git a/src/systemd/sd-dhcp6-client.h b/src/systemd/sd-dhcp6-client.h
index 9f0e92806e..0ca6c07de4 100644
--- a/src/systemd/sd-dhcp6-client.h
+++ b/src/systemd/sd-dhcp6-client.h
@@ -49,6 +49,7 @@ int sd_dhcp6_client_set_callback(sd_dhcp6_client *client,
sd_dhcp6_client_cb_t cb, void *userdata);
int sd_dhcp6_client_set_index(sd_dhcp6_client *client, int interface_index);
+int sd_dhcp6_client_set_local_address(sd_dhcp6_client *client, const struct in6_addr *local_address);
int sd_dhcp6_client_set_mac(sd_dhcp6_client *client, const uint8_t *addr,
size_t addr_len, uint16_t arp_type);
int sd_dhcp6_client_set_duid(sd_dhcp6_client *client, uint16_t type, uint8_t *duid,
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-10 05:09:33 +0000