Looks like 'openat', 'pipe2' and 'ppoll' are now needed, possibly due
to changes on libraries used by umdns now using slightly different
calls.
Found using
/etc/init.d/umdns trace
now use umdns, ie. cover all ubus call etc., then
/etc/init.d/umdns stop
find list of syscalls traced in /tmp/umdns.*.json
Fixes: FS#3355 ("UMDNS: does not start on master with seccomp")
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Now that ujail supports seccomp also on Aarch64, add missing syscall
'fstat' to the list of allowed syscalls.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
59e4fc98162d cache: cache_answer: fix off by one
4cece9cc7db4 cache: cache_record_find: fix buffer overflow
be687257ee0b cmake: tests: provide umdns-san binary
bf01f2dd0089 tests: add dns_handle_packet_file tool
134afc728846 tests: add libFuzzer based fuzzing
de08a2c71ca8 cmake: create static library
cdc18fbb3ea8 interface: fix possible null pointer dereference
1fa034c65cb6 interface: fix value stored to 'fd' is never read
3a67ebe3fc66 Add initial GitLab CI support
50caea125517 cmake: fix include dirs and libs lookup
Signed-off-by: Petr Štetiar <ynezz@true.cz>
d13290b Fix advertised IPv6 addresses
Don't just serve link-local addresses via mdns, offer all.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
cdac046 dns.c: fix input validation fix
Due to a slight foobar typo, failing to de-reference a pointer, previous
fix not quite as complete as it should have been.
Improve CVE-2020-11750 fix
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
ab7a39a umdns: fix unused error
45c4953 dns: explicitly endian-convert all fields in header and question
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
gcc 8 & 9 appear to be more picky with regards access alignment to
packed structures, leading to this warning in dns.c:
dns.c:261:2: error: converting a packed ‘struct dns_question’ pointer
(alignment 1) to a ‘uint16_t’ {aka ‘short unsigned int’} pointer
(alignment 2) may result in an unaligned pointer value
[-Werror=address-of-packed-member]
261 | uint16_t *swap = (uint16_t *) q;
Work around what I think is a false positive by turning the warning off.
Not ideal, but not quite as not ideal as build failure.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
