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mdns: add mdns_resp_restart_delay to allow re-probe delay selection

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Called with `MDNS_INITIAL_PROBE_DELAY_MS` or `MDNS_PROBE_DELAY_MS` according to
needs.

When `mdns_resp_restart_delay()` called by `mdns_resp_rename_(netif|service)()`
functions, it is assumed this is because a conflict. So we should not use
`MDNS_INITIAL_PROBE_DELAY_MS` because the Bonjour Conformance Test will
complain like this:

```
START (PROBING)
NOTICE  16:40:09.501911: conflicting probe:
        smarTrEMotE-f8d0a4.Local.
ERROR   16:40:09.607288: Device did not provide a sufficient time gap between receiving a conflicting probe and reprobing.
ERROR   16:40:09.607333: expected_time_gap=237,actual_time_gap=105
```

Signed-off-by: Simon Goldschmidt <goldsimon@gmx.de>
This commit is contained in:
David Girault
2019-05-29 17:58:20 +02:00
committed by Simon Goldschmidt
parent cd278c426d
commit 710b7fc158
2 changed files with 22 additions and 9 deletions
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1
src/include/lwip/apps/mdns.h
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@@ -117,6 +117,7 @@ err_t mdns_resp_rename_service(struct netif *netif, u8_t slot, const char *name)
err_t mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len);
void mdns_resp_restart_delay(struct netif *netif, uint32_t delay);
void mdns_resp_restart(struct netif *netif);
void mdns_resp_announce(struct netif *netif);