Commit Graph

9 Commits

Author SHA1 Message Date
Chen Minqiang
31cca8f8d3 umdns: add missing syscall to seccomp filter
There is some syscall missing:
'getdents64'
'getrandom'
'statx'
'newfstatat'

Found with:
'mkdir /etc/umdns; ln -s /tmp/1.json /etc/umdns/; utrace /usr/sbin/umdns'

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
2022-08-05 14:10:42 +02:00
Michael Peleshenko
db639238f2 umdns: add missing syscall to seccomp filter
The 'madvise', syscall is missing.
Found with 'utrace /usr/sbin/umdns' on an R7800 and RT3200.

Signed-off-by: Michael Peleshenko <mpeleshenko@gmail.com>
2021-10-27 19:25:59 +01:00
Michael Peleshenko
40c18e95dc umdns: add missing syscall to seccomp filter
The 'clock_gettime64', syscall is missing.
Found with 'utrace /usr/sbin/umdns' on an R7800.

Signed-off-by: Michael Peleshenko <mpeleshenko@gmail.com>
2021-10-23 19:31:32 +02:00
Ronny Kotzschmar
72bfc35f8f umdns: add missing syscalls to seccomp filter
The 'mmap', 'mmap2', 'munmap' syscalls are missing.
Found with 'utrace /usr/sbin/umdns'.

Signed-off-by: Ronny Kotzschmar <ro.ok@me.com>
2021-10-07 23:21:59 -10:00
Daniel Golle
00a85a1634
umdns: add missing syscalls to seccomp filter
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>
2021-04-10 17:36:03 +01:00
Daniel Golle
d28880cdd8
umdns: add syscalls needed on Aarch64
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>
2021-03-19 22:33:33 +00:00
Daniel Golle
64cbfd1f54 umdns: update seccomp filter rules
Add 'writev' syscall to list of allowed syscalls.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-11-27 01:23:43 +00:00
Daniel Golle
01b83040d3 umdns: convert seccomp filter rules to OCI format
procd-seccomp switched to OCI-compliant seccomp parser instead of our
(legacy, OpenWrt-specific) format. Convert ruleset to new format.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2020-11-17 13:12:37 +00:00
Rafał Miłecki
2a6fbce121 mdns: update and rename package to the umdns
This update includes numerous small fixes for:
1) Interfaces setup
2) Packets parsing
3) Sending replies
Without this there were multiple problems with exchanging information
between (u)mdns and other implementations (including (u)mdns as well).

This also follows project rename to umdns which was required to avoid
confusion with Apple's mdnsd from mDNSResponder project.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2017-02-15 11:52:57 +01:00