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Diffstat (limited to 'src/network/networkd-link.c')
-rw-r--r--src/network/networkd-link.c97
1 files changed, 35 insertions, 62 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 8df7ff5d60..c99cafc24b 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -366,7 +366,7 @@ static int link_enter_configured(Link *link) {
}
static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(link->route_messages > 0);
@@ -376,10 +376,8 @@ static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
link->route_messages --;
- if (IN_SET(LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
@@ -397,8 +395,6 @@ static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
link_enter_configured(link);
}
- link_unref(link);
-
return 1;
}
@@ -586,17 +582,15 @@ static int link_enter_set_routes(Link *link) {
}
static int route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(m);
assert(link);
assert(link->ifname);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -ESRCH)
@@ -607,13 +601,11 @@ static int route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata)
"ERRNO=%d", -r,
NULL);
- link_unref(link);
-
return 0;
}
static int address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(m);
@@ -625,10 +617,8 @@ static int address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
link->addr_messages --;
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EEXIST)
@@ -644,8 +634,6 @@ static int address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
link_enter_set_routes(link);
}
- link_unref(link);
-
return 1;
}
@@ -780,17 +768,15 @@ static int link_enter_set_addresses(Link *link) {
}
static int address_update_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(m);
assert(link);
assert(link->ifname);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -ENOENT)
@@ -801,23 +787,19 @@ static int address_update_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userd
"ERRNO=%d", -r,
NULL);
- link_unref(link);
-
return 0;
}
static int address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(m);
assert(link);
assert(link->ifname);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0 && r != -EADDRNOTAVAIL)
@@ -828,28 +810,22 @@ static int address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdat
"ERRNO=%d", -r,
NULL);
- link_unref(link);
-
return 0;
}
static int set_hostname_handler(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(link);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_bus_message_get_errno(m);
if (r < 0)
log_warning_link(link, "Could not set hostname: %s", strerror(-r));
- link_unref(link);
-
return 1;
}
@@ -883,26 +859,26 @@ static int link_set_hostname(Link *link, const char *hostname) {
return r;
r = sd_bus_call_async(link->manager->bus, NULL, m, set_hostname_handler, link, 0);
- if (r < 0)
+ if (r < 0) {
log_error_link(link, "Could not set transient hostname: %s", strerror(-r));
+ return r;
+ }
link_ref(link);
- return r;
+ return 0;
}
static int set_mtu_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(m);
assert(link);
assert(link->ifname);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0)
@@ -912,8 +888,6 @@ static int set_mtu_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
"ERRNO=%d", -r,
NULL);
- link_unref(link);
-
return 1;
}
@@ -1685,15 +1659,13 @@ static int link_update_flags(Link *link, sd_rtnl_message *m) {
}
static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(link);
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0) {
@@ -1707,8 +1679,6 @@ static int link_up_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
NULL);
}
- link_unref(link);
-
return 1;
}
@@ -1766,7 +1736,7 @@ static int link_enslaved(Link *link) {
}
static int enslave_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(link);
@@ -1776,10 +1746,8 @@ static int enslave_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
link->enslaving --;
- if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)) {
- link_unref(link);
+ if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
return 1;
- }
r = sd_rtnl_message_get_errno(m);
if (r < 0) {
@@ -1790,7 +1758,6 @@ static int enslave_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
"ERRNO=%d", -r,
NULL);
link_enter_failed(link);
- link_unref(link);
return 1;
}
@@ -1799,8 +1766,6 @@ static int enslave_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
if (link->enslaving == 0)
link_enslaved(link);
- link_unref(link);
-
return 1;
}
@@ -2084,7 +2049,7 @@ static int link_configure(Link *link) {
}
static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
Network *network;
int r;
@@ -2093,14 +2058,14 @@ static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m, void *
assert(link->manager);
if (link->state != LINK_STATE_INITIALIZING)
- return 0;
+ return 1;
log_debug_link(link, "link state is up-to-date");
r = network_get(link->manager, link->udev_device, link->ifname, &link->mac, &network);
if (r == -ENOENT) {
link_enter_unmanaged(link);
- return 0;
+ return 1;
} else if (r < 0)
return r;
@@ -2112,7 +2077,7 @@ static int link_initialized_and_synced(sd_rtnl *rtnl, sd_rtnl_message *m, void *
if (r < 0)
return r;
- return 0;
+ return 1;
}
int link_initialized(Link *link, struct udev_device *device) {
@@ -2144,6 +2109,8 @@ int link_initialized(Link *link, struct udev_device *device) {
if (r < 0)
return r;
+ link_ref(link);
+
return 0;
}
@@ -2270,12 +2237,13 @@ int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *use
}
static int link_get_address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
- Link *link = userdata;
+ _cleanup_link_unref_ Link *link = userdata;
int r;
assert(rtnl);
assert(m);
assert(link);
+ assert(link->manager);
for (; m; m = sd_rtnl_message_next(m)) {
r = sd_rtnl_message_get_errno(m);
@@ -2320,6 +2288,8 @@ int link_add(Manager *m, sd_rtnl_message *message, Link **ret) {
if (r < 0)
return r;
+ link_ref(link);
+
if (detect_container(NULL) <= 0) {
/* not in a container, udev will be around */
sprintf(ifindex_str, "n%"PRIu64, link->ifindex);
@@ -2339,6 +2309,9 @@ int link_add(Manager *m, sd_rtnl_message *message, Link **ret) {
if (r < 0)
return r;
} else {
+ /* we are calling a callback directly, so must take a ref */
+ link_ref(link);
+
r = link_initialized_and_synced(m->rtnl, NULL, link);
if (r < 0)
return r;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-08 14:49:02 +0000