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gnrc_dhcpv6_client: dhcp-helper-function return valid seconds left

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dhcpv6_client_prefix_valid_until returned the valid timestamp
this fixes it according to the documentation given in
/sys/include/net/dhcpv6/client.h
to return seconds left
This commit is contained in:
Karl Fessel 2021-07-23 17:40:06 +02:00
parent fc1bd005de
commit fe9a6d7d84
1 changed files with 4 additions and 2 deletions
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6
sys/net/gnrc/application_layer/dhcpv6/client.c
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@ -25,6 +25,7 @@
#include "net/gnrc/rpl.h" #include "net/gnrc/rpl.h"
#include "net/sock.h" #include "net/sock.h"
#include "timex.h" #include "timex.h"
#include "evtimer.h"
#include "net/dhcpv6/client.h" #include "net/dhcpv6/client.h"
@ -183,13 +184,14 @@ uint32_t dhcpv6_client_prefix_valid_until(unsigned netif,
gnrc_ipv6_nib_pl_t ple; gnrc_ipv6_nib_pl_t ple;
void *state = NULL; void *state = NULL;
uint32_t max_valid = 0; uint32_t max_valid = 0;
uint32_t now = evtimer_now_msec();
while (gnrc_ipv6_nib_pl_iter(netif, &state, &ple)) { while (gnrc_ipv6_nib_pl_iter(netif, &state, &ple)) {
if ((ple.pfx_len == pfx_len) && if ((ple.pfx_len == pfx_len) &&
((ple.valid_until / MS_PER_SEC) > max_valid) && (((ple.valid_until - now) / MS_PER_SEC) > max_valid) &&
(ipv6_addr_match_prefix(&ple.pfx, (ipv6_addr_match_prefix(&ple.pfx,
pfx) >= ple.pfx_len)) { pfx) >= ple.pfx_len)) {
max_valid = ple.valid_until / MS_PER_SEC; max_valid = (ple.valid_until - now) / MS_PER_SEC;
} }
} }
return max_valid; return max_valid;