commits June 2020

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[linux-merge]linux integration; annotated tag, v5.4.47, created. v5.4.47
by postmaster＠open-mesh.org 17 Jun '20

17 Jun '20

The annotated tag, v5.4.47 has been created at 44edacf70fc991648b0dcb443a5106b17bc70e7e (tag) tagging fd8cd8ac940c8b45b75474415291a3b941c865ab (commit) replaces v5.4.43 tagged by Greg Kroah-Hartman on Wed Jun 17 16:40:40 2020 +0200 - Shortlog ------------------------------------------------------------ This is the 5.4.47 stable release -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl7qK2gACgkQONu9yGCS aT4kaw/8Cknc9G64S1SWchxFj4LnSYzrpeFGXOZBlHBtcCyD12JNGjA6SG6DoGLY /s/1fjBwJWrWpkI36CGNZowNPYtzRMOhyBGj7QHTpEj0vjMTKYXhVieMquQSHwRP zcrYl8f/xWJKo6XNjR1YLh5PWeD6B9dWD1RcvBZ0jCez84jyVT1EyWMWGiodkLMx gmJITO2DBaekelU0yyZJIFePO5DJpcXspf5lrPgkPG9u/U4hZf94AAGMYbXJZ5Rn BDcqGEGQe+mtcG6lq6DGRDH5VVMG4k13MrZJBfrVAhkGU+g6nKQbOXCcdcRjoM6N 9NL8RbcpL0NhphNmrKwjNcYd4kZxYgTQb87FZi+qDxwGQIWIxcET6gL5t/vqAev1 v/uKFLlt5x/2tNtpC8aY8EwdyGcXfeBXEl9AjP7HUWC/KzB8I9vLnokcMvOMYDIg 3wNIsKMYLcLzuLL8oJ7FvDkBO+H/RjSvF4UvQyLOPOJtWSV5uKbLfKIU9sw90G3i t8qo3lNC/J4saJ+jx+O7XoHjFw6biJFATvs0+HtpCkwi0aJm2SGW+OvXuZCGZPnz TW2YsGFCCwL/RPtceJVkGfV3kr7SUB5AGXjueXdC+4QWfmi3POWojjgheQrleS+3 OLxRsUVbQ6hOqEgLAaV6HhzvykkTjDj2Gq8P3I+1Y/eiRHjlpdU= =WYnW -----END PGP SIGNATURE----- ----------------------------------------------------------------------- -- linux integration

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[linux-merge]linux integration; annotated tag, v5.7.3, created. v5.7.3
by postmaster＠open-mesh.org 17 Jun '20

17 Jun '20

The annotated tag, v5.7.3 has been created at fd5c823516f2006aaf1ff93fdd82e70b406bf0d8 (tag) tagging 264e468fc201cb81c313ad50924bb46506a1b31c (commit) replaces v5.7 tagged by Greg Kroah-Hartman on Wed Jun 17 16:43:05 2020 +0200 - Shortlog ------------------------------------------------------------ This is the 5.7.3 stable release -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl7qK/kACgkQONu9yGCS aT49cw//b7iScPoye6xG1y1MuIH4afohadUc8pyXqGl8BrIvUAYGMTPlvGIZqVfj YlYX+ImHAeh+Uff5/y5uzVnV2v+FGvWUQbTkh2glauxYOvLKNP5goP2/pbeejbzU NLlBPx6Z9LcwyuOFoLZirx7j0wjRfMs4iW2YxqppffkuHDKLDgJhIhAsLBtLgkNV Cd4A/F4HJ6l8tImZOhb5wiDeaahBdrcwZe5ymOjZdWY8cWg9cP2w9I/oCAocmvIJ DUweROk61WmZpWABTbc9eZ5LuWxK4E2UY/1u4pUsYLp/mLweoxTIKe63en+ifff/ XZc/GIQel6h/NovVSNnKbGJh5w4VU3wDGSfCQWtZ7FbWmG3YJ7Jfxye7Y6PNbSCj 5MixJzjoxlEnF22YqR28e7Haqo7ZLhQOlRGHCcvZSxUxuefAC1r7Wr0sxu7kPHga fHrHlXX10tUyagQ/h7NEk63b3VOC1rOn+STE9DI82pbm5nVg2jzxDOmzqola4R9c ZfPD4i48CyeG7H2yH2J+MWFY9tECFzDKjbfWknAdWgrNBNAWcceLC+cjMXrfZPWH J2EdtzB0GtkOVVbSF/PX87L5l+WAM3VNFJCYTxapyBFOtR8uJGzjj1Fj7gYQmzpj 15MJV60VARW3J1+mC7LkuIaOvCZ7x4gYcguPzMakdHONIJC8VBU= =cWLV -----END PGP SIGNATURE----- ----------------------------------------------------------------------- -- linux integration

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[alfred] master: alfred: Switch mailing list subscription page (693e4ed)
by postmaster＠open-mesh.org 16 Jun '20

16 Jun '20

Repository : ssh://git@diktynna/alfred On branch : master >--------------------------------------------------------------- commit 693e4eda1f486583e440dec98bda0f6627de5ad7 Author: Sven Eckelmann <sven(a)narfation.org> Date: Wed May 27 23:29:46 2020 +0200 alfred: Switch mailing list subscription page The mailman installation on lists.open-mesh.org was switched from mailman2 to mailman3. The URL to the subscription webpage changed in this process. Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 693e4eda1f486583e440dec98bda0f6627de5ad7 README.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.rst b/README.rst index d7446a3..76664ee 100644 --- a/README.rst +++ b/README.rst @@ -329,7 +329,7 @@ IRC: #batman on irc.freenode.org Mailing-list: b.a.t.m.a.n(a)open-mesh.org (optional subscription at - https://lists.open-mesh.org/mm/listinfo/b.a.t.m.a.n) + https://lists.open-mesh.org/mailman3/postorius/lists/b.a.t.m.a.n.lists.open…) If you have test reports/patches/ideas, please read the wiki for further instruction on how to contribute:

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[batctl] master: Merge branch 'maint' (7742eaa)
by postmaster＠open-mesh.org 16 Jun '20

16 Jun '20

Repository : ssh://git@diktynna/batctl On branch : master >--------------------------------------------------------------- commit 7742eaa394c48c7a148f9a575adf1cb011bf637a Merge: 427a0b8 6d49a82 Author: Sven Eckelmann <sven(a)narfation.org> Date: Tue Jun 16 22:29:32 2020 +0200 Merge branch 'maint' >--------------------------------------------------------------- 7742eaa394c48c7a148f9a575adf1cb011bf637a interface.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

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[batctl] maint,master: batctl: Only remove batadv interface on hardif reduction (6d49a82)
by postmaster＠open-mesh.org 16 Jun '20

16 Jun '20

Repository : ssh://git@diktynna/batctl On branches: maint,master >--------------------------------------------------------------- commit 6d49a82cf58ee5ebd6235b6ddaca46febd42f876 Author: Sven Eckelmann <sven(a)narfation.org> Date: Sat Jun 13 17:59:34 2020 +0200 batctl: Only remove batadv interface on hardif reduction A deletion of a hardif from a batadv meshif will also get a success reply from the kernel when the hardif was never part of the batadv meshif. If the batadv meshif had no attached hardifs before the removal was started, then users are then not expecting that the batadv meshif is removed at all. Since the delete operation is not an atomic compare-and-swap operation, just check first the number of attached interfaces and only start the removal of the batadv meshif when the number attached hardifs was reduced. Fixes: 25022e0b154d ("batctl: Use rtnl to add/remove interfaces") Reported-by: Matthias Schiffer <mschiffer(a)universe-factory.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 6d49a82cf58ee5ebd6235b6ddaca46febd42f876 interface.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/interface.c b/interface.c index 1cd6ede..ac4d883 100644 --- a/interface.c +++ b/interface.c @@ -386,6 +386,7 @@ static int interface(struct state *state, int argc, char **argv) int ret; unsigned int ifindex; unsigned int ifmaster; + unsigned int pre_cnt; const char *long_op; unsigned int cnt; int rest_argc; @@ -502,6 +503,8 @@ static int interface(struct state *state, int argc, char **argv) goto err; } + pre_cnt = count_interfaces(state->mesh_iface); + for (i = 1; i < rest_argc; i++) { ifindex = if_nametoindex(rest_argv[i]); @@ -531,7 +534,7 @@ static int interface(struct state *state, int argc, char **argv) /* check if there is no interface left and then destroy mesh_iface */ if (!manual_mode && rest_argv[0][0] == 'd') { cnt = count_interfaces(state->mesh_iface); - if (cnt == 0) + if (cnt == 0 && pre_cnt > 0) destroy_interface(state->mesh_iface); }

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[linux-merge]linux integration; annotated tag, v5.8-rc1, created. v5.8-rc1
by postmaster＠open-mesh.org 14 Jun '20

14 Jun '20

The annotated tag, v5.8-rc1 has been created at 1eca23c384437f4208ccd940846c2920f69b731f (tag) tagging b3a9e3b9622ae10064826dccb4f7a52bd88c7407 (commit) replaces v5.7 tagged by Linus Torvalds on Sun Jun 14 12:45:04 2020 -0700 - Shortlog ------------------------------------------------------------ Linux 5.8-rc1 -----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl7mfkAeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGTG4H/1iH1Psd32XKoO63 XuOashbqnsYLCKckbFg0RgHIDTp6d0wypF5m3dSYqpifWUaEf8SkTGnm0geV9zc1 axDUdaqr+OvhDPZiSLt4cFu2M5yvGb4/WR76qjKzxWd+LNUGOVpx1GvFXl/5wPdp /lYR3mqZqNffwK2QuZ1m8X1gy5fzr4esoyZDK71dP88uBlFmbQLJsYiCRfQ7GDsm r574gz7SKjPoPFPj7qJ3CLsnOruZiL36uxmYZWC2hnkNaFzLfMFiE7OqrEZK/YV6 Gc8ZZGtN+Otr+UbojagjTjRM6uy3qWBYEMX4GcRt9M2jS8LGKsYcxV75h0U5qlyz m8QAA0o= =jy/I -----END PGP SIGNATURE----- Al Viro (1): batadv_socket_read(): get rid of pointless access_ok() Antonio Quartulli (1): batman-adv: use rcu_replace_pointer() where appropriate Cong Wang (2): net: partially revert dynamic lockdep key changes net: change addr_list_lock back to static key David S. Miller (2): Merge git://git.kernel.org/.../netdev/net Merge tag 'batadv-next-for-davem-20200526' of git://git.open-mesh.org/linux-merge Simon Wunderlich (1): batman-adv: Start new development cycle Sven Eckelmann (5): batman-adv: Fix spelling error in term buffer batman-adv: trace: Drop unneeded types.h include batman-adv: Utilize prandom_u32_max for random [0, max) values batman-adv: Revert "Drop lockdep.h include for soft-interface.c" batman-adv: Revert "disable ethtool link speed detection when auto negotiation off" YueHaibing (1): batman-adv: remove unused inline function batadv_arp_change_timeout ----------------------------------------------------------------------- -- linux integration

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[batman-adv] master: batman-adv: change addr_list_lock back to static key (758b79ab)
by postmaster＠open-mesh.org 11 Jun '20

11 Jun '20

Repository : ssh://git@diktynna/batman-adv On branch : master >--------------------------------------------------------------- commit 758b79ab10c342207691dce95553e763fa6733a3 Author: Cong Wang <xiyou.wangcong(a)gmail.com> Date: Mon Jun 8 14:53:01 2020 -0700 batman-adv: change addr_list_lock back to static key The dynamic key update for addr_list_lock still causes troubles, for example the following race condition still exists: CPU 0: CPU 1: (RCU read lock) (RTNL lock) dev_mc_seq_show() netdev_update_lockdep_key() -> lockdep_unregister_key() -> netif_addr_lock_bh() because lockdep doesn't provide an API to update it atomically. Therefore, we have to move it back to static keys and use subclass for nest locking like before. In commit 74efdf49af45 ("batman-adv: partially revert dynamic lockdep key changes"), I already reverted most parts of fced7f6bdf34 ("batman-adv: use generic lockdep keys"). This patch reverts the rest. Reported-by: syzbot+f3a0e80c34b3fc28ac5e(a)syzkaller.appspotmail.com Cc: Taehee Yoo <ap420073(a)gmail.com> Cc: Dmitry Vyukov <dvyukov(a)google.com> Signed-off-by: Cong Wang <xiyou.wangcong(a)gmail.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sven Eckelmann <sven(a)narfation.org> >--------------------------------------------------------------- 758b79ab10c342207691dce95553e763fa6733a3 net/batman-adv/soft-interface.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 0ddd8013..f1f1c86f 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -745,6 +745,7 @@ static int batadv_interface_kill_vid(struct net_device *dev, __be16 proto, * separate class since they always nest. */ static struct lock_class_key batadv_netdev_xmit_lock_key; +static struct lock_class_key batadv_netdev_addr_lock_key; /** * batadv_set_lockdep_class_one() - Set lockdep class for a single tx queue @@ -765,6 +766,7 @@ static void batadv_set_lockdep_class_one(struct net_device *dev, */ static void batadv_set_lockdep_class(struct net_device *dev) { + lockdep_set_class(&dev->addr_list_lock, &batadv_netdev_addr_lock_key); netdev_for_each_tx_queue(dev, batadv_set_lockdep_class_one, NULL); }

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[doc] master: Merge branch 'backup-redmine/2020-06-06' (d62f12e)
by postmaster＠open-mesh.org 06 Jun '20

06 Jun '20

Repository : ssh://git@diktynna/doc On branch : master >--------------------------------------------------------------- commit d62f12e73cd541c14927791221d2b8ad2dec01e6 Merge: 865a89b 9b667d8 Author: Sven Eckelmann <sven(a)narfation.org> Date: Sat Jun 6 10:26:03 2020 +0200 Merge branch 'backup-redmine/2020-06-06' >--------------------------------------------------------------- d62f12e73cd541c14927791221d2b8ad2dec01e6 open-mesh/Contribute.rst | 2 +- open-mesh/Kernel_hacking_Debian_image.rst | 6 ++++-- open-mesh/MailingList.rst | 2 +- open-mesh/Wbmv6-batmandev-agenda.rst | 2 +- 4 files changed, 7 insertions(+), 5 deletions(-) diff --cc open-mesh/Contribute.rst index ceafbf1,0000000..4d8ebb1 mode 100644,000000..100644 --- a/open-mesh/Contribute.rst +++ b/open-mesh/Contribute.rst @@@ -1,124 -1,0 +1,124 @@@ +.. SPDX-License-Identifier: GPL-2.0 + +How to Contribute +================= + +Thanks for using B.A.T.M.A.N.! If you have suggestions, comments, want +to tell us about your experiences or discuss problems the best thing is +always to use the :doc:`Mailing List <MailingList>` You can always contact +us via :doc:`IRC <IRC>`. + +If you like this project and you want to take part and/or give something +back, here is a short list of starting points: + +Reporting Bugs +-------------- + +If you find a bug, please see if the problem is already known in the by +Reading the Tickets: + +- for `batman-adv </projects/batman-adv/issues>`__ +- for `batctl </projects/batctl/issues>`__ +- for `alfred </projects/alfred/issues>`__ +- for `batmand </projects/batmand/issues>`__ +- for `vis </projects/vis/issues>`__ + +If not, please add a new Ticket: + +- for `batman-adv </projects/batman-adv/issues/new>`__ +- for `batctl </projects/batctl/issues/new>`__ +- for `alfred </projects/alfred/issues/new>`__ +- for `batmand </projects/batmand/issues/new>`__ +- for `vis </projects/vis/issues/new>`__ + +Please add as much information as possible. In particular interesting +are: + +- Which branch (batman, batctl, batman-adv) +- Which version (0.X, git revision number) +- kernel version, distribution (and version) +- machine type (PC, Linksys WRT, Fon, NS2, ...) +- command line parameters used +- iptables/firewall rules +- :doc:`get a coredump </batmand/Coredump>` if you experience a segfault +- your guess what triggered the problem. ;) + +Documentation / Feedback +------------------------ + +Write an article about your experience with B.A.T.M.A.N. and have it +published here or ask us to link to your site: + +- How did you find us ? +- How does you setup look like ? +- Where are you building your mesh ? +- What problems did you encounter ? +- How did you debug / solve them ? +- What did you like / not like ? +- How can B.A.T.M.A.N. improve ? + +There's lots of people that want to know about B.A.T.M.A.N. - help us to +spread the word! You also can create a wiki account and improve the +documentation. + +Research +-------- + +B.A.T.M.A.N. gives much room for research, especially the layer 2 +implementation in the kernel. Get in touch with us to share your ideas. +If you write papers we are happy to publish them here or link to your +page. If you are looking for the right topic or mentorship feel free to +contact us. We have more ideas than time to implement them. + +Development +----------- + +You looked in the code ? Fixed bugs ? Added a cool new function ? +Integrated B.A.T.M.A.N. in a distribution ? Don't hesitate to let us and +others know! We can avoid duplicated work by publishing it here or +linking to your page. Patches are always welcome and can be posted on +the :doc:`mailing list <MailingList>` to get integrated. We also hand out +git access to people that want to get involved. + +Submitting patches +------------------ + +If you intend to send us patches, please consider the following +guidelines: + +* Prefer small & digestible over long "all in one" patches. +* No MIME, no links, no compression, no attachments. Just plain text + (patches are to be sent inline). +* Patches sent to the mailing list should include "PATCH" in the + subject to make it easier to distinguish between patches and + discussions. +* The mail's subject will become the first line in the commit message. + The body contains the longer patch description and the patch (unified + format) itself. Please also specify the target branch (e.g. batctl, + batman-adv, etc) at the beginning of the subject line. +* Add a "Signed-off-by: Your Name <you(a)example.com>" line to the patch + message to make the ownership of the patch clear. +* Patches for B.A.T.M.A.N. Advanced need to follow the linux kernel + coding style closely (use checkpatch.pl to verify your patch) as well as + the linux "how to submit patches" guidelines (search for the term + SubmitPatches to find thorough documentation). +* Check it using static analysis tools like + `sparse <https://sparse.wiki.kernel.org/>`__ (cgcc) and + `cppcheck <http://cppcheck.sourceforge.net/>`__ +* Patches against the batman-adv master branch must be formatted using + +:: + + git format-patch $BASECOMMIT + +- README, manpage and sysfs-class-net-\* must be updated together with + the related source change +- Add or update kerneldoc to functions and structures you add or + modify. +- batman-adv changes affecting batctl have to be send with the batctl + patches in the same patchset +- it is recommended to use \`git send-email\` to send the mails to the + mailinglist +- An exemplary good submission you may want to look at can be found + here: - https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2009-December/002033.html ++ https://patchwork.open-mesh.org/project/b.a.t.m.a.n./patch/1261051915-13960… diff --cc open-mesh/Kernel_hacking_Debian_image.rst index fd12b6a,0000000..b03350d mode 100644,000000..100644 --- a/open-mesh/Kernel_hacking_Debian_image.rst +++ b/open-mesh/Kernel_hacking_Debian_image.rst @@@ -1,438 -1,0 +1,440 @@@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel hacking Debian image +=========================== + +The :doc:`OpenWrt image <OpenWrt_in_QEMU>` is an easy way to start multiple +virtual instances. But these instances usually don��t provide the +required infrastructure to test kernel modules extensively. And it also +depends on special toolchains to prepare the used tools/modules which +should tested. + +It is often easier to use the same operating system in the virtual +environment and on the host. Only the kernel is modified here to provide +the necessary helpers for in-kernel development. + +An interested reader might even extend this further to only provide a +modified kernel and use the currently running rootfs also in the virtual +environment. Such an approach is used in `hostap��s test +vm <https://w1.fi/cgit/hostap/tree/tests/hwsim/vm>`__ but it is out of +scope for this document. + +Create an Image +--------------- + +The debian root filesystem is used here to a minimal system to boot and +run the test programs. It is a simple ext4 filesystem with only +userspace components from Debian. The configuration is changed to: + +* automatically mount the shared folder +* automatically set up a static IPv4 address and hostname on bootup +* start a test-init.sh script from the shared folder on bootup +* disable root password +* prefer batctl binary from shared folder��s batctl subdirectory instead + of virtual environment binary + +The installation is also cleaned up at the end to reduce the required +storage space + +.. code-block:: sh + + qemu-img create debian.img 8G + sudo mkfs.ext4 -O '^has_journal' -F debian.img + sudo mkdir debian + sudo mount -o loop debian.img debian + sudo debootstrap buster debian + sudo chroot debian apt update + sudo chroot debian apt install --no-install-recommends build-essential vim openssh-server less \ + pkg-config libnl-3-dev libnl-genl-3-dev libcap-dev tcpdump rng-tools5 \ + trace-cmd flex bison libelf-dev libdw-dev binutils-dev libunwind-dev libssl-dev libslang2-dev liblzma-dev libperl-dev + + sudo mkdir debian/root/.ssh/ + ssh-add -L | sudo tee debian/root/.ssh/authorized_keys + + sudo mkdir debian/host + sudo sh -c 'cat > debian/etc/fstab << EOF + host /host 9p trans=virtio,version=9p2000.L 0 0 + EOF' + + sudo sh -c 'cat > debian/etc/rc.local << "EOF" + #!/bin/sh -e + + MAC_PART="$(ip link show enp0s1 | awk "/ether/ {print \$2}"| sed -e "s/.*://" -e "s/[\\n\\ ].*//"|awk "{print (\"0x\"\$1)*1 }")" + IP_PART="$(echo $MAC_PART|awk "{ print \$1+50 }")" + NODE_NR="$(echo $MAC_PART|awk "{ printf(\"%02d\", \$1) }")" + ip addr add 192.168.251.${IP_PART}/24 dev enp0s1 + ip link set up dev enp0s1 + hostname "node"$NODE_NR + ip link set up dev lo + [ ! -x /host/test-init.sh ] || /host/test-init.sh + exit 0 + EOF' + sudo chmod a+x debian/etc/rc.local + + sudo sed -i 's/^root:[^:]*:/root::/' debian/etc/shadow + + ## optionally: allow ssh logins without passwords + # sudo sed -i 's/^#PermitRootLogin.*/PermitRootLogin yes/' debian/etc/ssh/sshd_config + # sudo sed -i 's/^#PermitEmptyPasswords.*/PermitEmptyPasswords yes/' debian/etc/ssh/sshd_config + # sudo sed -i 's/^UsePAM.*/UsePAM no/' debian/etc/ssh/sshd_config + + ## optionally: enable autologin for user root + #sudo mkdir debian/etc/systemd/system/serial-getty(a)hvc0.service.d/ + #sudo sh -c 'cat > debian/etc/systemd/system/serial-getty(a)hvc0.service.d/autologin.conf << EOF + #[Service] + #ExecStart= + #ExecStart=-/sbin/agetty --autologin root -s %I 115200,38400,9600 vt102 + #EOF' + + sudo sh -c 'echo '\''PATH="/host/batctl/:$PATH"'\'' >> debian/etc/profile' + sudo rm debian/var/cache/apt/archives/*.deb + sudo rm debian/var/lib/apt/lists/* + sudo e4defrag -v debian/ + sudo umount debian + sudo fsck.ext4 -fD debian.img + sudo zerofree -v debian.img + sudo fallocate --dig-holes debian.img + + + ## optionally: convert image to qcow2 + #sudo qemu-img convert -c -f raw -O qcow2 debian.img debian.qcow2 + #sudo mv debian.qcow2 debian.img + +Kernel compile +-------------- + +Any recent kernel can be used for the setup. We will use linux-next here +to get the most recent development kernels. It is also assumed that the +sources are copied to the same directory as the debian.img and a x86_64 +image will be used. + +The kernel will be build to enhance the virtualization and debugging +experience. It is configured with: + +* basic kernel features +* support for necessary drivers +* kernel hacking helpers +* kernel address + undefined sanitizers +* support for hwsim + +.. code-block:: sh + + # make sure that libelf-dev is installed or module build will fail with something like "No rule to make target 'net/batman-adv/bat_algo.o'" + + git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git + cd linux-next + + make allnoconfig + cat >> .config << EOF + + # small configuration + CONFIG_SMP=y + CONFIG_EMBEDDED=n + # CONFIG_EXPERT is not set + CONFIG_MODULES=y + CONFIG_MODULE_UNLOAD=y + CONFIG_MODVERSIONS=y + CONFIG_MODULE_SRCVERSION_ALL=y + CONFIG_64BIT=y + CONFIG_X86_VSYSCALL_EMULATION=n + CONFIG_IA32_EMULATION=n + CONFIG_VOP_BUS=y + CONFIG_VOP=y + CONFIG_HW_RANDOM_VIRTIO=y + CONFIG_NET_9P_VIRTIO=y + CONFIG_VIRTIO_MENU=y + CONFIG_SCSI_VIRTIO=y + CONFIG_VIRTIO_BALLOON=y + CONFIG_VIRTIO_BLK=y + CONFIG_VIRTIO_CONSOLE=y + CONFIG_VIRTIO_INPUT=y + CONFIG_VIRTIO_NET=y + CONFIG_VIRTIO_PCI=y + CONFIG_VIRTIO_PCI_LEGACY=y + CONFIG_VIRTIO_BALLOON=y + CONFIG_VIRTIO_BLK_SCSI=y + CONFIG_VIRTIO_INPUT=y + CONFIG_VIRTIO_MMIO=y + CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y + CONFIG_RPMSG_VIRTIO=y + CONFIG_VSOCKETS=y + CONFIG_VIRTIO_VSOCKETS=y + CONFIG_DRM=y + CONFIG_DRM_VIRTIO_GPU=y + CONFIG_CAIF=y + CONFIG_CAIF_VIRTIO=y + CONFIG_CRYPTO_DEV_VIRTIO=y + CONFIG_FUSE_FS=y + CONFIG_VIRTIO_FS=y + CONFIG_IOMMU_SUPPORT=y + CONFIG_VIRTIO_IOMMU=y + CONFIG_LIBNVDIMM=y + CONFIG_VIRTIO_PMEM=y + CONFIG_CRC16=y + CONFIG_LIBCRC32C=y + CONFIG_CRYPTO_SHA512=y + CONFIG_NET=y + CONFIG_INET=y + CONFIG_DEBUG_FS=y + CONFIG_IPV6=y + CONFIG_BRIDGE=y + CONFIG_VLAN_8021Q=y + CONFIG_WIRELESS=n + CONFIG_NET_9P=y + CONFIG_NETWORK_FILESYSTEMS=y + CONFIG_9P_FS=y + CONFIG_9P_FS_POSIX_ACL=y + CONFIG_9P_FS_SECURITY=y + CONFIG_BLOCK=y + CONFIG_BLK_DEV=y + CONFIG_EXT4_FS=y + CONFIG_EXT4_USE_FOR_EXT23=y + CONFIG_TTY=y + CONFIG_HW_RANDOM=y + CONFIG_VHOST_RING=y + CONFIG_GENERIC_ALLOCATOR=y + CONFIG_SCSI_LOWLEVEL=y + CONFIG_SCSI=y + CONFIG_NETDEVICES=y + CONFIG_NET_CORE=y + CONFIG_DEVTMPFS=y + CONFIG_HYPERVISOR_GUEST=y + CONFIG_PVH=y + CONFIG_PARAVIRT=y + CONFIG_PARAVIRT_TIME_ACCOUNTING=y + CONFIG_PARAVIRT_SPINLOCKS=y + CONFIG_KVM_GUEST=y + CONFIG_BINFMT_ELF=y + CONFIG_BINFMT_SCRIPT=y + CONFIG_BINFMT_MISC=y + CONFIG_PCI=y + CONFIG_SYSVIPC=y + CONFIG_POSIX_MQUEUE=y + CONFIG_CROSS_MEMORY_ATTACH=y + CONFIG_UNIX=y + CONFIG_TMPFS=y + CONFIG_CGROUPS=y + CONFIG_BLK_CGROUP=y + CONFIG_CGROUP_CPUACCT=y + CONFIG_CGROUP_DEVICE=y + CONFIG_CGROUP_FREEZER=y + CONFIG_CGROUP_HUGETLB=y + CONFIG_CGROUP_NET_CLASSID=y + CONFIG_CGROUP_NET_PRIO=y + CONFIG_CGROUP_PERF=y + CONFIG_CGROUP_SCHED=y + CONFIG_DEVPTS_MULTIPLE_INSTANCES=y + CONFIG_INOTIFY_USER=y + CONFIG_FHANDLE=y + CONFIG_CFG80211=y + CONFIG_DUMMY=y + CONFIG_PACKET=y + CONFIG_VETH=y + CONFIG_IP_MULTICAST=y + CONFIG_NET_IPGRE_DEMUX=y + CONFIG_NET_IP_TUNNEL=y + CONFIG_NET_IPGRE=y + CONFIG_NET_IPGRE_BROADCAST=y + # CONFIG_LEGACY_PTYS is not set + CONFIG_NO_HZ_IDLE=y + CONFIG_CPU_IDLE_GOV_HALTPOLL=y + CONFIG_PVPANIC=y + + # makes boot a lot slower but required for shutdown + CONFIG_ACPI=y + + + #debug stuff + CONFIG_CC_STACKPROTECTOR_STRONG=y + CONFIG_LOCKUP_DETECTOR=y + CONFIG_DETECT_HUNG_TASK=y + CONFIG_SCHED_STACK_END_CHECK=y + CONFIG_DEBUG_RT_MUTEXES=y + CONFIG_DEBUG_SPINLOCK=y + CONFIG_DEBUG_MUTEXES=y + CONFIG_PROVE_LOCKING=y + CONFIG_LOCK_STAT=y + CONFIG_DEBUG_LOCKDEP=y + CONFIG_DEBUG_ATOMIC_SLEEP=y + CONFIG_DEBUG_LIST=y + CONFIG_DEBUG_PI_LIST=y + CONFIG_DEBUG_SG=y + CONFIG_DEBUG_NOTIFIERS=y + CONFIG_PROVE_RCU_REPEATEDLY=y + CONFIG_SPARSE_RCU_POINTER=y + CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y + CONFIG_X86_VERBOSE_BOOTUP=y + CONFIG_DEBUG_RODATA=y + CONFIG_DEBUG_RODATA_TEST=n + CONFIG_DEBUG_SET_MODULE_RONX=y + CONFIG_PAGE_EXTENSION=y + CONFIG_DEBUG_PAGEALLOC=y + CONFIG_DEBUG_OBJECTS=y + CONFIG_DEBUG_OBJECTS_FREE=y + CONFIG_DEBUG_OBJECTS_TIMERS=y + CONFIG_DEBUG_OBJECTS_WORK=y + CONFIG_DEBUG_OBJECTS_RCU_HEAD=y + CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER=y + CONFIG_DEBUG_KMEMLEAK=y + CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8000 + CONFIG_DEBUG_STACK_USAGE=y + CONFIG_DEBUG_STACKOVERFLOW=y + CONFIG_DEBUG_INFO=y + CONFIG_DEBUG_INFO_DWARF4=y + CONFIG_GDB_SCRIPTS=y + CONFIG_READABLE_ASM=y + CONFIG_STACK_VALIDATION=y + CONFIG_WQ_WATCHDOG=y + CONFIG_DEBUG_KOBJECT_RELEASE=y + CONFIG_DEBUG_WQ_FORCE_RR_CPU=y + CONFIG_OPTIMIZE_INLINING=y + CONFIG_ENABLE_MUST_CHECK=y + CONFIG_ENABLE_WARN_DEPRECATED=y + CONFIG_DEBUG_SECTION_MISMATCH=y + CONFIG_UNWINDER_ORC=y + CONFIG_FTRACE=y + CONFIG_FUNCTION_TRACER=y + CONFIG_FUNCTION_GRAPH_TRACER=y + CONFIG_FTRACE_SYSCALLS=y + CONFIG_TRACER_SNAPSHOT=y + CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y + CONFIG_STACK_TRACER=y + CONFIG_UPROBE_EVENTS=y + CONFIG_DYNAMIC_FTRACE=y + CONFIG_FUNCTION_PROFILER=y + CONFIG_HIST_TRIGGERS=y + CONFIG_SYMBOLIC_ERRNAME=y + CONFIG_DYNAMIC_DEBUG=y + CONFIG_PRINTK_TIME=y + CONFIG_PRINTK_CALLER=y + CONFIG_DEBUG_MISC=y + CONFIG_PROVE_RCU_LIST=y + + # for GCC 5+ + CONFIG_KASAN=y + CONFIG_KASAN_INLINE=y + CONFIG_UBSAN_SANITIZE_ALL=y + CONFIG_UBSAN=y + CONFIG_UBSAN_NULL=y + EOF + make olddefconfig + + cat >> .config << EOF + # allow to use unsigned regdb with hwsim + CONFIG_EXPERT=y + CONFIG_CFG80211_CERTIFICATION_ONUS=y + # CONFIG_CFG80211_REQUIRE_SIGNED_REGDB is not set + EOF + make olddefconfig + + make all -j$(nproc || echo 1) + +Build the BIOS +-------------- + +The (sea)bios used by qemu is nice to boot all kind of legacy images but +reduces the performance for booting a paravirtualized Linux system. +Something like qboot works better for this purpose: + +.. code-block:: sh + + git clone https://github.com/bonzini/qboot.git - make -C qboot ++ cd qboot ++ meson build && ninja -C build ++ cd .. + +.. _open-mesh-kernel-hacking-debian-image-building-the-batman-adv-module: + +Building the batman-adv module +------------------------------ + +The kernel module can be build outside the virtual environment and +shared over the 9p mount. The path to the kernel sources have to be +provided to the make process + +.. code-block:: sh + + make KERNELPATH="$(pwd)/../linux-next" + +The kernel module can also be compiled in a way which creates better +stack traces and increases the usability with (k)gdb: + +.. code-block:: sh + + make EXTRA_CFLAGS="-fno-inline -Og -fno-optimize-sibling-calls" KERNELPATH="$(pwd)/../linux-next" V=1 + +Start of the environment +------------------------ + +virtual network initialization +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The +:ref:`virtual-network.sh from the OpenWrt environment <open-mesh-openwrt-in-qemu-virtual-network-initialization>` +can be reused again. + +VM instances bringup +~~~~~~~~~~~~~~~~~~~~ + +The +:ref:`run.sh from the OpenWrt environment <open-mesh-openwrt-in-qemu-vm-instances-bringup>` +can mostly be reused. There are only minimal +adjustments required. + +The BASE_IMG is of course no longer the same because a new image +��debian.img�� was created for our new environment. The image also doesn��t +contain a bootloader or kernel anymore. The kernel must now be supplied +manually to qemu. + +.. code-block:: sh + + BASE_IMG=debian.img - BOOTARGS+=("-bios" "qboot/bios.bin") ++ BOOTARGS+=("-bios" "qboot/build/bios.bin") + BOOTARGS+=("-kernel" "linux-next/arch/x86/boot/bzImage") + BOOTARGS+=("-append" "root=/dev/vda rw console=hvc0 nokaslr tsc=reliable no_timer_check noreplace-smp rootfstype=ext4 rcupdate.rcu_expedited=1 reboot=t pci=lastbus=0 i8042.direct=1 i8042.dumbkbd=1 i8042.nopnp=1 i8042.noaux=1") + BOOTARGS+=("-device" "virtconsole,chardev=charconsole0,id=console0") + +It is also recommended to use linux-next/vmlinux instead of bzImage with +qemu 4.0.0 (or later) + +Automatic test initialization +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The +:ref:`test-init.sh from the OpenWrt environment <open-mesh-openwrt-in-qemu-automatic-test-initialization>` +is always test specific. But its main +functionality is still the same as before. A simple example would be: + +.. code-block:: sh + + cat > test-init.sh << "EOF" + #! /bin/sh + + set -e + + ## get internet access + dhclient enp0s2 + + ## Simple batman-adv setup + + # ip link add dummy0 type dummy + ip link set up dummy0 + + rmmod batman-adv || true + insmod /host/batman-adv/net/batman-adv/batman-adv.ko + /host/batctl/batctl routing_algo BATMAN_IV + /host/batctl/batctl if add dummy0 + /host/batctl/batctl it 5000 + /host/batctl/batctl if add enp0s1 + ip link set up dev enp0s1 + ip link set up dev bat0 + EOF + + chmod +x test-init.sh + +Start +----- + +The startup method +:ref:`from the OpenWrt environment <open-mesh-openwrt-in-qemu-start>` +should be used here. diff --cc open-mesh/MailingList.rst index 15d4b4a,0000000..8939fdc mode 100644,000000..100644 --- a/open-mesh/MailingList.rst +++ b/open-mesh/MailingList.rst @@@ -1,16 -1,0 +1,16 @@@ +.. SPDX-License-Identifier: GPL-2.0 + +Mailing List +============ + +You can subscribe to our Mailing Lists +`here <https://lists.open-mesh.org/>`__. You can also send an E-Mail +without subscription to b.a.t.m.a.n(a)lists.open-mesh.org, but keep in +mind that this message will have to be accepted manually (and this can +take some time). + +*Note*: HTML email will be rejected - just plain text is allowed (this +cuts the rate of SPAM mails dramatically). + +Old messages can be read in the `B.A.T.M.A.N. - archives <https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/>`__. ++archives <https://lists.open-mesh.org/mailman3/hyperkitty/list/b.a.t.m.a.n@lists.open…>`__. diff --cc open-mesh/Wbmv6-batmandev-agenda.rst index 62bf8d1,0000000..751258b mode 100644,000000..100644 --- a/open-mesh/Wbmv6-batmandev-agenda.rst +++ b/open-mesh/Wbmv6-batmandev-agenda.rst @@@ -1,68 -1,0 +1,68 @@@ +.. SPDX-License-Identifier: GPL-2.0 + +Wbmv6-batmandev-agenda +====================== + +Celebration! +------------ + +Find something to celebrate (something different from last year). + +Would be good if we do +---------------------- + +- Big Compat Dump, consisting in integration of: + + - TVLV + - FRAGv2 + - CRC32 in TT + - Improve packet format design to avoid \_\_packed (?) + - bandwidth meter packet format integration (? not sure if this does + really hurt since bw meter uses icmp) + +Testing +------- + +- Catwoman (Throughput test) + +Concept discussion +------------------ + +* B.A.T.M.A.N. V (which includes bandwidth aware ELP and OGMv2) +* OGMv3 (no-tt OGM) +* Multicast (evolution) support inclusion +* `Howto to optimise the Bandwidth based GW - selection <https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2013-January/008964.html>`__ ++ selection <https://lists.open-mesh.org/mailman3/hyperkitty/list/b.a.t.m.a.n@lists.open…>`__ +* Multiple L3 border Gateways to the same network: how to choose the + best one assuming each of them has a different (L3) cost to the + destination +* Some notes were taken in the past about possible improvements to the + GW feature. We may want to consider them: + +:: + + - Multiple gw for multiple networks + Tag the GW so that you can choose the best among a single class and keep a + list of the best gws (one per class). + Each class can connect the mesh to a different network, therefore we would + want to communicate to several gw at the same time, not in mutual exclusion. + +- mac80211 like DebugFS structure +- Fragmentation v2: advertise MTUs to avoid re-fragmentation? + +Talk +---- + +- Catwoman II (aka Fox) + +Others +------ + +- [STRIKEOUT:GSOC 2013] + + - [STRIKEOUT:decide mentors availability] + - [STRIKEOUT:think about possible projects] + +- Maint release cycle (i.e. Stable versions) +- Compat code maintenance (split kernel-module and out-of-the-kernel + package development?)

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[doc] backup-redmine/2020-06-06,master: doc: open-mesh/Kernel_hacking_Debian_image: switch to new meson build system for qboot (9554cdf)
by postmaster＠open-mesh.org 06 Jun '20

06 Jun '20

Repository : ssh://git@diktynna/doc On branches: backup-redmine/2020-06-06,master >--------------------------------------------------------------- commit 9554cdfea77179c72840be02d65cdd441f52848b Author: Sven Eckelmann <sven(a)narfation.org> Date: Fri May 22 07:46:52 2020 +0000 doc: open-mesh/Kernel_hacking_Debian_image: switch to new meson build system for qboot >--------------------------------------------------------------- 9554cdfea77179c72840be02d65cdd441f52848b open-mesh/Kernel_hacking_Debian_image.textile | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/open-mesh/Kernel_hacking_Debian_image.textile b/open-mesh/Kernel_hacking_Debian_image.textile index 39730f6..23ae11e 100644 --- a/open-mesh/Kernel_hacking_Debian_image.textile +++ b/open-mesh/Kernel_hacking_Debian_image.textile @@ -312,7 +312,9 @@ The (sea)bios used by qemu is nice to boot all kind of legacy images but reduces <pre><code class="shell"> git clone https://github.com/bonzini/qboot.git -make -C qboot +cd qboot +meson build && ninja -C build +cd .. </code></pre> h2. Building the batman-adv module @@ -343,7 +345,7 @@ The BASE_IMG is of course no longer the same because a new image "debian.img" wa <pre><code class="shell"> BASE_IMG=debian.img -BOOTARGS+=("-bios" "qboot/bios.bin") +BOOTARGS+=("-bios" "qboot/build/bios.bin") BOOTARGS+=("-kernel" "linux-next/arch/x86/boot/bzImage") BOOTARGS+=("-append" "root=/dev/vda rw console=hvc0 nokaslr tsc=reliable no_timer_check noreplace-smp rootfstype=ext4 rcupdate.rcu_expedited=1 reboot=t pci=lastbus=0 i8042.direct=1 i8042.dumbkbd=1 i8042.nopnp=1 i8042.noaux=1") BOOTARGS+=("-device" "virtconsole,chardev=charconsole0,id=console0")

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[doc] backup-redmine/2020-06-06,master: doc: open-mesh/Contribute (bba9468)
by postmaster＠open-mesh.org 06 Jun '20

06 Jun '20

Repository : ssh://git@diktynna/doc On branches: backup-redmine/2020-06-06,master >--------------------------------------------------------------- commit bba9468e0812a0e2e5469bac3f0085042436e575 Author: Sven Eckelmann <sven(a)narfation.org> Date: Wed May 27 20:55:08 2020 +0000 doc: open-mesh/Contribute >--------------------------------------------------------------- bba9468e0812a0e2e5469bac3f0085042436e575 open-mesh/Contribute.textile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/open-mesh/Contribute.textile b/open-mesh/Contribute.textile index d8a97aa..fd27d63 100644 --- a/open-mesh/Contribute.textile +++ b/open-mesh/Contribute.textile @@ -83,7 +83,7 @@ git format-patch $BASECOMMIT * Add or update kerneldoc to functions and structures you add or modify. * batman-adv changes affecting batctl have to be send with the batctl patches in the same patchset * it is recommended to use `git send-email` to send the mails to the mailinglist -* An exemplary good submission you may want to look at can be found here: https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2009-December/002033.html +* An exemplary good submission you may want to look at can be found here: https://patchwork.open-mesh.org/project/b.a.t.m.a.n./patch/1261051915-13960…

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