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network: dhcp4: also release old lease in dhcp_lease_lost()

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The lease lost may happen during renewing address. If it happens,
assertion hits in dhcp4_release_old_lease().
This commit is contained in:
Yu Watanabe 2020-07-16 10:12:18 +09:00
parent 8d5bb13d78
commit 75be72d139
3 changed files with 4 additions and 4 deletions
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5
src/network/networkd-dhcp4.c
View File

@ -27,7 +27,7 @@ static int dhcp_remove_address(Link *link, sd_dhcp_lease *lease, const struct in
static int dhcp4_update_address(Link *link, bool announce);
static int dhcp4_remove_all(Link *link);
void dhcp4_release_old_lease(Link *link) {
static void dhcp4_release_old_lease(Link *link) {
struct in_addr address = {}, address_old = {};
assert(link);
@ -793,6 +793,9 @@ static int dhcp_lease_lost(Link *link) {
link->dhcp4_configured = false;
/* dhcp_lease_lost() may be called during renewing IP address. */
dhcp4_release_old_lease(link);
r = dhcp4_remove_all(link);
if (r < 0)
return r;

1
src/network/networkd-dhcp4.h
View File

@ -17,7 +17,6 @@ typedef enum DHCPClientIdentifier {
_DHCP_CLIENT_ID_INVALID = -1,
} DHCPClientIdentifier;
void dhcp4_release_old_lease(Link *link);
int dhcp4_configure(Link *link);
int dhcp4_set_client_identifier(Link *link);
int dhcp4_set_promote_secondaries(Link *link);

2
src/network/networkd-link.c
View File

@ -800,8 +800,6 @@ int link_stop_clients(Link *link, bool may_keep_dhcp) {
assert(link->manager);
assert(link->manager->event);
dhcp4_release_old_lease(link);
bool keep_dhcp = may_keep_dhcp &&
link->network &&
(link->manager->restarting ||