get_seconds is removed in 5.11; its replacement ktime_get_real_seconds
is available since 3.19. The timestamps should not be affected by clock
resets, so will be switched to ktime_get_seconds.
The download URL for the GeoLite2 DBs has changed and includes a
licence key. Update the download script to read the key from file or
stdin and use the correct URL.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
The DEBUG definition in xt_pknock.h causes a compiler warning if one
adds a DEBUG define to xt_pknock.c to enable pr_debug. Since it only
controls some debugging output in libxt_pknock.c, it would make sense to
move the definition there, but let's just disable the debugging instead.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Replace some instances of `printk(KERN_ERR PKNOCK ...)`. We define
`pr_fmt`, so `pr_err` is equivalent.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
The group ID used by xt_pknock is configurable, but pknlusr hard-codes
it. Modify pknlusr to accept an optional ID from the command line.
Group IDs range from 1 to 32 and each ID appears in the group bitmask
at position `group_id - 1`.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
A return-value of zero is not an error, so there is no point calling
perror, but since we have not requested and do not expect a zero-length
datagram, we treat it as EOF and exit.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
Use struct initialization and drop memset. We do not need to set the port
ID, since the kernel will do it for us.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
We only need to specify the address at our end, and given that we are
receiving messages, not sending them, calling it `src_addr` is
misleading.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
In 5.9, the `void __user` parameter has been replaced by a `sockptr`.
Update `ipt_acc_set_ctl` appropriately.
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
In roff, lines beginning with a single quote are control lines. In the
libxt_DNETMAP man-page there is a single-quoted string at the beginning
of a line, which troff tries and fails to interpret as a macro:
troff: <standard input>:49: warning: macro 'S'' not defined
This means that the line is not output.
Replace the single quotes with the appropriate escape-sequences.
Fixes: v2.3~9 ("doc: spelling and grammar corrections to DNETMAP")
Signed-off-by: Jeremy Sowden <jeremy@azazel.net>
