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sd-ipv4acd: allow to change requesting address without restarting sd-ipv4acd

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This commit is contained in:
Yu Watanabe 2021-06-21 02:47:20 +09:00
parent 3d817902c4
commit 5c35c13a4d
1 changed files with 22 additions and 1 deletions
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23
src/libsystemd-network/sd-ipv4acd.c
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@ -490,14 +490,35 @@ int sd_ipv4acd_set_callback(sd_ipv4acd *acd, sd_ipv4acd_callback_t cb, void *use
}
int sd_ipv4acd_set_address(sd_ipv4acd *acd, const struct in_addr *address) {
int r;
assert_return(acd, -EINVAL);
assert_return(address, -EINVAL);
assert_return(in4_addr_is_set(address), -EINVAL);
assert_return(acd->state == IPV4ACD_STATE_INIT, -EBUSY);
if (in4_addr_equal(&acd->address, address))
return 0;
acd->address = *address;
if (!sd_ipv4acd_is_running(acd))
return 0;
assert(acd->fd >= 0);
r = arp_update_filter(acd->fd, &acd->address, &acd->mac_addr);
if (r < 0)
goto fail;
r = ipv4acd_set_next_wakeup(acd, 0, 0);
if (r < 0)
goto fail;
ipv4acd_set_state(acd, IPV4ACD_STATE_STARTED, true);
return 0;
fail:
ipv4acd_reset(acd);
return r;
}
int sd_ipv4acd_get_address(sd_ipv4acd *acd, struct in_addr *address) {