freifunk-dresden / ffdd-bmxd

bmxd - Freifunk-Dresden

ffdd_bmxd

bmxd - Freifunk-Dresden

This is the modified version of B.A.T.M.A.N Experimental (BMX) originally created by Copyright (C) 2007 Axel Neumann <axel (at) open-mesh.net>

Any modifification of this sources are made by Copyright (c) 2007-2022 Stephan Enderlein

The work is licensed under: Creative Commons BY-NC-SA-2.0 http://creativecommons.org/licenses/by-nc-sa/2.0/

The modification includes:

• list handling rework
• fixing memory issues
• removing unused code and code that does not belong to protocol
• extension of bmxd protcoll (adding community gateway routes)
• adding script parameters allowing setting dns and external ipip gateway tunnel
• and a lot other changes.

The development of experimental version of bmx was abandoned a long time ago by Axel Neumann but used by Freifunk Dresden. Since then the sources are modified to fit requirements for Freifunk Dresden network.

ffdd-bmxd's Issues

batmand hangs 1 sec

(double space after bat0)

bmx[1515]: INFO  del_dev_tun(): closing gwc_cleanup tunnel bat0  ip 169.254.x.x

/etc/init.d/S52batmand check and Internet Connection stopped 1 sec!

LOG:

...
Jan 03 19:00:41 vpn13.freifunk-dresden.de GW_CHECK[1714]: try: 10.10.172.1:vpn0                                                                                                       
Jan 03 19:00:42 vpn13.freifunk-dresden.de bmx[1515]: INFO  using new default tunnel to GW 10.200.200.26 (gw_flags: 63, packet_count: 2, gw_product: 0)                                                   
Jan 03 19:00:42 vpn13.freifunk-dresden.de bmx[1515]: INFO  send ip request to gateway: 10.200.200.26, preferred IP: 0.0.0.0                                                                                                                    
Jan 03 19:00:42 vpn13.freifunk-dresden.de bmx[1515]: INFO  got IP reply: sender 10.200.200.26 ip 10.200.200.26                                                                                                              
Jan 03 19:00:42 vpn13.freifunk-dresden.de bmx[1515]: INFO  got IP 169.254.9.57 (preferred: IP 0.0.0.0) from gateway: 10.200.200.26 for 600 seconds                                    
Jan 03 19:00:42 vpn13.freifunk-dresden.de bmx[1515]: INFO  GWT: GW-client tunnel init succeeded - type: 2WT  dev: bat0  IP: 169.254.9.57  MTU: 1200  GWIP: 10.200.200.26              
Jan 03 19:00:44 vpn13.freifunk-dresden.de GW_CHECK[1958]: ok: true                                                                                                                        
Jan 03 19:00:44 vpn13.freifunk-dresden.de GW_CHECK[1959]: dev_is_vpn: 1                                                                                                                                                                       
Jan 03 19:00:44 vpn13.freifunk-dresden.de GW_CHECK[1962]: Set public gateway: dev:vpn0, ip:10.10.172.1                                                                                                                      
Jan 03 19:00:44 vpn13.freifunk-dresden.de bmx[1515]: INFO  gateway class: 63 -> propagating: 8MBit/8MBit                                                                                                                                      
Jan 03 19:00:44 vpn13.freifunk-dresden.de bmx[1515]: INFO  del_dev_tun(): closing gwc_cleanup tunnel bat0  ip 169.254.9.57                                                                                                                     
Jan 03 19:00:44 vpn13.freifunk-dresden.de rndc[1995]: server reload successful                                                                                                                                                                 
Jan 03 19:00:44 vpn13.freifunk-dresden.de GW_CHECK[2046]: gateway check end.
...

WIP: bmxd: need some correction and a update to router version.

• bmxd müsste noch auf die gleiche version gebracht welche auf den Routern läuft.
• Beim bauen von bmxd bekomme ich noch folgende warnings and notes.
• check issue #1 after this step!

cd /usr/local/src/bmxd/ ; make clean_all ; make ; make strip ; cp -f bmxd /usr/local/bin/

                  In file included from batman.h:31,
                                   from originator.c:27:
                  originator.c: In function 'update_routes':
                  control.h:118:30: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
                   #define dbgf_all( dbgt, ... ); do { if ( __dbgf_all() ) { _dbgf_all( dbgt, __func__, __VA_ARGS__ ); } } while (0)
                                                ^
                  originator.c:108:9: note: in expansion of macro 'dbgf_all'
                           dbgf_all( DBGT_INFO, "change route to %-15s via %-15s %s %3d / %3d (prev. via %-15s %s %3d)",
                           ^~~~~~~~
                  In file included from schedule.c:32:
                  schedule.c: In function 'wait4Event':
                  os.h:24:25: warning: macro expands to multiple statements [-Wmultistatement-macros]
                   # define timercpy(d, a) (d)->tv_sec = (a)->tv_sec; (d)->tv_usec = (a)->tv_usec;
                                           ^
                  schedule.c:1317:6: note: in expansion of macro 'timercpy'
                        timercpy( tv_stamp, &(mb->tv_stamp) );
                        ^~~~~~~~
                  schedule.c:1316:5: note: some parts of macro expansion are not guarded by this 'else' clause
                       else
                       ^~~~
                  In file included from batman.h:30,
                                   from control.c:36:
                  control.c: In function 'remove_dbgl_node':
                  control.c:95:43: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
                     list_for_each_safe( list_pos, list_tmp, (struct list_head *)&dbgl_clients[i] ) {
                  list-batman.h:98:14: note: in definition of macro 'list_for_each_safe'
                    for (pos = (head)->next, n = pos->next; pos != (struct list_head *)(head); \
                                ^~~~
                  control.c: In function 'debug_output':
                  control.c:595:29: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
                     list_for_each ( list_pos, (struct list_head *)&(dbgl_clients[level]) ) {
                  list-batman.h:87:14: note: in definition of macro 'list_for_each'
                    for (pos = (head)->next; pos != (struct list_head *)(head); \
                                ^~~~
                  control.c: In function '_opt_connect':
                  control.c:1795:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
                     if ( cmd == OPT_CHECK )
                     ^~
                  control.c:1798:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
                      Client_mode = YES;
                      ^~~~~~~~~~~
                  posix/tunnel.c: In function 'opt_gw_class':
                  posix/tunnel.c:2194:27: warning: '%s' directive writing 4 bytes into a region of size between 3 and 23 [-Wformat-overflow=]
                     sprintf( gwarg, "%i%s/%i%s",
                                             ^~
                  posix/tunnel.c:2194:3: note: 'sprintf' output between 12 and 32 bytes into a destination of size 30
                     sprintf( gwarg, "%i%s/%i%s",
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
                              ( download_speed > 2048 ? download_speed / 1024 : download_speed ),
                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                              ( download_speed > 2048 ? "MBit" : "KBit" ),
                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                              ( upload_speed > 2048 ? upload_speed / 1024 : upload_speed ),
                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                              ( upload_speed > 2048 ? "MBit" : "KBit" ) );
                              ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
              stdout:
                  make bmxd
                  make[1]: Entering directory '/usr/local/src/bmxd'
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c batman.c -o batman.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c originator.c -o originator.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c hna.c -o hna.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c schedule.c -o schedule.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c plugin.c -o plugin.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c list-batman.c -o list-batman.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c allocate.c -o allocate.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c avl.c -o avl.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c profile.c -o profile.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c control.c -o control.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c metrics.c -o metrics.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c linux/route.c -o linux/route.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c posix/posix.c -o posix/posix.o
                  cc -pedantic -Wall -W -Wno-unused-parameter -Os -g3 -std=gnu99 -I./ -DREVISION_VERSION=\"-src:[497088cbbb]\" -DNODEPRECATED -DNOVIS -c posix/tunnel.c -o posix/tunnel.o
                  cc  batman.o originator.o hna.o schedule.o plugin.o list-batman.o allocate.o avl.o profile.o control.o metrics.o linux/route.o posix/posix.o posix/tunnel.o -o bmxd  -Wl,-export-dynamic -ldl -g3 
                  make[1]: Leaving directory '/usr/local/src/bmxd'
                  # further make targets: help, libs, build_all, strip[_libs|_all], install[_libs|_all], clean[_libs|_all]
                  make bmxd
                  make[1]: Entering directory '/usr/local/src/bmxd'
                  make[1]: 'bmxd' is up to date.
                  make[1]: Leaving directory '/usr/local/src/bmxd'
                  # further make targets: help, libs, build_all, strip[_libs|_all], install[_libs|_all], clean[_libs|_all]
                  strip bmxd