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dhcpv6_client: mrd calculation fixed for renew and rebind

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mrd calculation for dhcp-renew was wrong this fixes it
and the logic for dhcp rebind mrd handling
    (try rebind if ther is mrd)
see issue  #16677
This commit is contained in:
Karl Fessel 2021-07-23 17:46:14 +02:00
parent fe9a6d7d84
commit 238c759899
1 changed files with 2 additions and 2 deletions
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4
sys/net/application_layer/dhcpv6/client.c
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@ -839,7 +839,7 @@ static void _request_renew_rebind(uint8_t type)
case DHCPV6_RENEW: case DHCPV6_RENEW:
irt = DHCPV6_REN_TIMEOUT; irt = DHCPV6_REN_TIMEOUT;
mrt = DHCPV6_REN_MAX_RT; mrt = DHCPV6_REN_MAX_RT;
mrd = rebind_time - t2; mrd = rebind_time - _now_sec();
break; break;
case DHCPV6_REBIND: { case DHCPV6_REBIND: {
irt = DHCPV6_REB_TIMEOUT; irt = DHCPV6_REB_TIMEOUT;
@ -858,7 +858,7 @@ static void _request_renew_rebind(uint8_t type)
mrd = valid_until; mrd = valid_until;
} }
} }
if (mrd > 0) { if (mrd == 0) {
/* all leases already expired, don't try to rebind and /* all leases already expired, don't try to rebind and
* solicit immediately */ * solicit immediately */
_post_solicit_servers(); _post_solicit_servers();