1.5.0
Features
- supported removal of subtype when updating service (4ad88e29)
Bug Fixes
- Fix zero-sized VLA clang-tidy warnings (196198ec)
- Remove dead store to arg variable shared (e838bf03)
- Fix name mangling not to use strcpy() (99b54ac3)
- Fix potential null derefernce in _mdns_execute_action() (f5be2f41)
- Fix AFL test mock per espressif/esp-idf@a5bc08fb55 (3d8835cf)
- Fixed potential out-of-bound interface error (24f55ce9)
- Fixed incorrect error conversion (8f8516cc)
- Fixed potential overflow when allocating txt data (75a8e864)
- Move MDNS_NAME_BUF_LEN to public headers (907087c0, #724)
- Cleanup includes in mdns.c (68a9e148, #725)
- Allow advertizing service with port==0 (827ea65f)
- Fixed complier warning if MDNS_MAX_SERVICES==0 (95377216, #611)
We did check for null-deref before checking 'a->type', but contol
continues and passes potential null-ptr to the processing function
_mdns_execute_action()
Fixed by asserting action != NULL, since it is an invalid state which
should never happen.
1.4.1
Features
- Send PTR query for mdns browse when interface is ready (010a404a)
Bug Fixes
- Prevent deadlock when deleting a browse request (3f48f9ea)
- Fix use after free reported by coverity (25b3d5fd)
- Fixed dead-code reported by coverity (11846c7d)
Fixes CID 467739: Use after free in mdns.c, mdns_service_remove_for_host
We should look only for one match in the service list, since if we
assume there could be aliases, we might free one and reference the
other.
Fixes CID 467738: Logically dead code in mdns.c, _copy_mdns_txt_items
Introduced by probably by a merge confilict, as the fix was added in
two separate PRs, merging d4da9cb0 first and 8a690503 later
1.4.0
Major changes
- Fixed mdns API issues when add/remove/update records from multiple threads (Fix services API races to directly add/remove services)
Features
- Unit tests for add/remove/update deleg/selfhosted services (0660ece1)
- Add console command for mdns browsing (1e8ede33)
- Console test: set instance for service (f107dcd1)
- Console test: add subtype for service (ee00e97b)
- Console test: set port for (delegated) srvs (07b79abf)
- Console test: add/remove TXT recs for delegated srvs (c9a58d73)
- Console test for changing TXT records (6b9a6ce6)
- Console test for add/remove delegated service APIs (43de7e5c)
- Console test for add/remove delegated host APIs (ce7f326a)
- Console test for lookup service APIs (a91ead8e)
- Add linux console functional tests (50d059af)
- check if the txt items is changed when browsing (e2f0477a)
Bug Fixes
- Fix mdns_delegate_hostname_add() to block until done (2c1b1661)
- Fix API races when removing all services (169405b5)
- Fix API races setting instance name for services (643dc6d4)
- Fix API races while adding subtypes for services (f9f234c4)
- Fix API races removing txt item for services (3f97a822)
- Fix API races adding txt item for services (c62b920b)
- Fix API races while setting txt for services (a927bf3a)
- Fix API races while setting port for services (99d5fb27)
- Fix services API races to directly add/remove services (8a690503)
- Fix mdns mdns_lookup_service() to handle empty TXT (d4da9cb0)
Adds action semaphore the same way it's done in mdns_hostname_add()
There could still potentially be a minor issue when calling these two APIs
simultanously. Will solve the same ways as in 8a690503 (tracked as
IDF-10913)
Original issue (data race when updating hostname): mdns_service_add()
makes a copy of the local hostname and calls using the local copy
mdns_service_add_for_host().
When mdns's hostname is updated the local copy gets out of sync.
**API race issue**: Most of the current API correctly lock the mdns service,
but sometimes unlocks it before sending an action to the action queue,
so it's possible that the situation changes before the actual action
takes place.
**Fix**: After locking the mdns service, we proceed directly with updating
internal structures and do not post actions into the action queue.
**Fix wrtt hostname**: Use mdns_service_add_for_host(hostname=NULL)
for all self hosted services.
MAJOR CHANGE: Fixed mdns API issues when add/remove/update records from multiple threads
This and the following commits fix the API race issues for these mdns APIs:
* mdns_service_add_for_host
* mdns_service_port_set_for_host
* mdns_service_txt_set_for_host
* mdns_service_txt_item_set_for_host_with_explicit_value_len
* mdns_service_txt_item_remove_for_host
* mdns_service_subtype_add_for_host
* mdns_service_instance_name_set_for_host
* mdns_service_remove_for_host
* mdns_service_remove_all
the lookup_service API calls _copy_mdns_txt_items(), which tries to
allocate new TXT records, but didn't handle the case with no TXT.
Originally the _copy_mdns_txt_items() called calloc() with zero's which
returned NULL (on espressif toolchain), so it's safe, but we could see
an error message:
E (1170) mdns: Cannot allocate memory (line: 6191, free heap: 281368 bytes)
This commit addresses the empty TXT case and gets rid of the error
message.
