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mdns: added support for removing service in mdns responder

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New function `mdns_resp_del_service()` added.

Signed-off-by: goldsimon <goldsimon@gmx.de>
This commit is contained in:
David Girault 2017-04-28 14:23:17 +02:00 committed by goldsimon
parent 20fd844935
commit c8b7759e10
2 changed files with 25 additions and 1 deletions
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24
src/apps/mdns/mdns.c
View File

@ -1993,7 +1993,7 @@ mdns_resp_remove_netif(struct netif *netif)
* @param txt_fn Callback to get TXT data. Will be called each time a TXT reply is created to * @param txt_fn Callback to get TXT data. Will be called each time a TXT reply is created to
* allow dynamic replies. * allow dynamic replies.
* @param txt_data Userdata pointer for txt_fn * @param txt_data Userdata pointer for txt_fn
* @return ERR_OK if the service was added to the netif, an err_t otherwise * @return service_id if the service was added to the netif, an err_t otherwise
*/ */
err_t err_t
mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, u32_t dns_ttl, service_get_txt_fn_t txt_fn, void *txt_data) mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, u32_t dns_ttl, service_get_txt_fn_t txt_fn, void *txt_data)
@ -2039,7 +2039,29 @@ mdns_resp_add_service(struct netif *netif, const char *name, const char *service
#if LWIP_IPV4 #if LWIP_IPV4
mdns_announce(netif, IP4_ADDR_ANY); mdns_announce(netif, IP4_ADDR_ANY);
#endif #endif
return slot;
}
/**
* @ingroup mdns
* Delete a service on the selected network interface.
* @param netif The network interface on which service should be removed
* @param slot The service slot number returned by mdns_resp_add_service
* @return ERR_OK if the service was removed from the netif, an err_t otherwise
*/
err_t
mdns_resp_del_service(struct netif *netif, int slot)
{
struct mdns_host* mdns;
struct mdns_service *srv;
LWIP_ASSERT("mdns_resp_del_service: netif != NULL", netif);
mdns = NETIF_TO_HOST(netif);
LWIP_ERROR("mdns_resp_del_service: Not an mdns netif", (mdns != NULL), return ERR_VAL);
LWIP_ERROR("mdns_resp_del_service: Invalid Service ID", (mdns->services[slot] != NULL), return ERR_VAL);
srv = mdns->services[slot];
mdns->services[slot] = NULL;
mem_free(srv);
return ERR_OK; return ERR_OK;
} }

2
src/include/lwip/apps/mdns.h
View File

@ -63,6 +63,8 @@ err_t mdns_resp_remove_netif(struct netif *netif);
err_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, u32_t dns_ttl, service_get_txt_fn_t txt_fn, void *txt_userdata); err_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, u32_t dns_ttl, service_get_txt_fn_t txt_fn, void *txt_userdata);
err_t mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len); err_t mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len);
err_t mdns_resp_del_service(struct netif *netif, int slot);
void mdns_resp_netif_settings_changed(struct netif *netif); void mdns_resp_netif_settings_changed(struct netif *netif);
#endif /* LWIP_MDNS_RESPONDER */ #endif /* LWIP_MDNS_RESPONDER */