7581/7582/7530ax: Freetz GUI accessible again on port :81

[roland3939]

When booting freezt-ng image on 7581, port 81 and port 443 are used by process /bin/smd ( see issue #301 comment)
further investigation shows, process smd ( system management daemon from Broadcom's SW stack used in AVM's firmware) starts the busyboy applet httpd ( /usr/sbin/httpd ) as a child process. This process chain results in port 81 no longer being available for use by Freetz GUI.
simply terminate smd process by

/etc/rc3.d/S65smd stop

is not sufficient: e.g. on event "WLAN status change" a box reboot gets triggered

Possible options to fix this issue during freetz-ng image built:

• change the web-cfg port of freetz-ng (e.g. to :82)

• delete symlink for busybox's httpd

• compile busybox without httpd web-server applet

• modify configuration file used by smd binary
  set line comment at lines 40 to 47 in file /etc/cms_entity_info.d/eid_bcm_mgmt.txt
  this prevents the smd process from starting the httpd web-server daemon
  Box runs long-term stable with this option applied.

Thus, Freetz GUI (web-cfg) is accessible again on port :81 and additionally port 443 is used by ctlmgr (https access to AVM GUI ).

[fda77]

Thx for investigation! Freetz-webif uses also the httpd. 1st i thought automatic freetz-webif port change would be the best, but its then hard to find.
Whats about changing the port of smb? HTTPD_PORT is defined in etc/cms_entity_info.d/symbol_table.txt. This could work if the port is not used by someting else. Can you access it with browser? Is there something usefull?

If you want to (hacky) change symbol_table.txt:

• Build image as you need
• change the .txt in build/original/filesystem/.....
• Build the image again (unpacking should be skipped)

[roland3939]

changing HTTPD_PORT and HTTPD_PORT_SSL is not the best option, as httpd is still forked as a child process by smd ( only using some different ports then).
it's useless since there is no configuration given for this httpd instance.

to prevent the smd process from starting the httpd web-server daemon is a much better option, I think; and it doesn't interfere with the usage of httpd by Freetz-webif not at all.
So, set line comment at lines 40 to 47 in file /etc/cms_entity_info.d/eid_bcm_mgmt.txt is my preferred fix ( as already stated in #485 (comment))
for convenience, just add attached file 840_patch_smd_no_httpd.sh to patches/scripts folder and the whole is finished.

840_patch_smd_no_httpd.sh.txt

[fda77]

Thx! Fixed: c9f388e
I've switched to patches to get notified if the file changes in some way. Just delete static line numbers could cause anyhting