Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Adds bittorrent support for live images #26

Closed
wants to merge 1 commit into from
Closed

Adds bittorrent support for live images #26

wants to merge 1 commit into from

Conversation

antonym
Copy link
Contributor

@antonym antonym commented Aug 15, 2014

This patch adds bittorrent support to 45url-lib for those that might want
to retrieve the same live image for multiple systems at once without
saturating the network.

This patch requires ctorrent to be installed into initramfs.

Torrent kernel command line format:
root=live:torrent://example.com/liveboot.img.torrent

Start a tracker:
bttrack --bind <tracker_ip> --port 6969 --dfile dstate --reannounce_interval 60

Create the torrent:
ctorrent -t live_image -u http://<tracker_ip>:6969/announce -s live_image.torrent

Seed the initial torrent:
ctorrent live_image.torrent

Boot the live image.

Adds bittorrent support for live images
bba769d 
This patch adds bittorrent support to 45url-lib for those that might want
to retrieve the same live image for multiple systems at once without
saturating the network.

This patch requires ctorrent to be installed into initramfs.

Torrent kernel command line format:
root=live:torrent://example.com/liveboot.img.torrent

Start a tracker:
bttrack --bind <tracker_ip> --port 6969 --dfile dstate --reannounce_interval 60

Create the torrent:
ctorrent -t live_image -u http://<tracker_ip>:6969/announce -s live_image.torrent

Seed the initial torrent:
ctorrent live_image.torrent

Boot the live image.
@haraldh
Copy link
Collaborator

haraldh commented Aug 15, 2014

Thanks! Pushed along with a check for the ctorrent binary before adding it to the url handler.
commit e84af01

@haraldh haraldh closed this Aug 15, 2014
@johannbg johannbg added dracut Issues related to dracut modules Issue tracker for all modules url-lib Issues related to the url-lib module labels Aug 6, 2020
runsisi added a commit to runsisi/dracut that referenced this pull request Aug 6, 2022
@runsisi
fix(dracut-install): use stripped kernel module path as hash key
7bb1f64 
in install_dependent_modules we use &path[kerneldirlen] as the key for inserting,
let's do the same for checking.

otherwise installing kernel module has circular dependency from a custom kernel
module directory will cause infinite recursion and segfault.

$ grep ipmi kbuilt/lib/modules/5.10.121/modules.dep
kernel/drivers/char/ipmi/ipmi_msghandler.ko:
kernel/drivers/char/ipmi/ipmi_devintf.ko: kernel/drivers/char/ipmi/ipmi_msghandler.ko

$ grep ipmi kbuilt/lib/modules/5.10.121/modules.softdep
softdep ipmi_msghandler post: ipmi_devintf

$ ./dracut-install -D /tmp --kerneldir ~/working/kernel/linux-5.10.121/kbuilt/lib/modules/5.10.121 -m ipmi-devintf
Segmentation fault (core dumped)

(gdb) b install_dependent_modules
Breakpoint 1 at 0x7db0: file src/install/dracut-install.c, line 1513.
(gdb) bt
#0  install_dependent_modules (modlist=0x0) at src/install/dracut-install.c:1513
dracutdevs#1  0x000055555555c027 in install_dependent_modules (modlist=modlist@entry=0x555555579e90) at src/install/dracut-install.c:1553
dracutdevs#2  0x000055555555bf1c in install_dependent_modules (modlist=0x5555555799d0) at src/install/dracut-install.c:1548
dracutdevs#3  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557a3f0) at src/install/dracut-install.c:1554
dracutdevs#4  0x000055555555bf1c in install_dependent_modules (modlist=0x555555579d60) at src/install/dracut-install.c:1548
dracutdevs#5  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557b170) at src/install/dracut-install.c:1554
dracutdevs#6  0x000055555555bf1c in install_dependent_modules (modlist=0x55555557a0f0) at src/install/dracut-install.c:1548
dracutdevs#7  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555575320) at src/install/dracut-install.c:1554
dracutdevs#8  0x000055555555bf1c in install_dependent_modules (modlist=0x55555557ab30) at src/install/dracut-install.c:1548
dracutdevs#9  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557dd60) at src/install/dracut-install.c:1554
dracutdevs#10 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b640) at src/install/dracut-install.c:1548
dracutdevs#11 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e0f0) at src/install/dracut-install.c:1554
dracutdevs#12 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b9d0) at src/install/dracut-install.c:1548
dracutdevs#13 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574340) at src/install/dracut-install.c:1554
dracutdevs#14 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557cf70) at src/install/dracut-install.c:1548
dracutdevs#15 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x5555555768d0) at src/install/dracut-install.c:1554
dracutdevs#16 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557d750) at src/install/dracut-install.c:1548
dracutdevs#17 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e700) at src/install/dracut-install.c:1554
dracutdevs#18 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557de90) at src/install/dracut-install.c:1548
dracutdevs#19 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555581c90) at src/install/dracut-install.c:1554
dracutdevs#20 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571e60) at src/install/dracut-install.c:1548
dracutdevs#21 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b620) at src/install/dracut-install.c:1554
dracutdevs#22 0x000055555555bf1c in install_dependent_modules (modlist=0x555555583000) at src/install/dracut-install.c:1548
dracutdevs#23 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b640) at src/install/dracut-install.c:1554
dracutdevs#24 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571b40) at src/install/dracut-install.c:1548
dracutdevs#25 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574100) at src/install/dracut-install.c:1554
dracutdevs#26 0x000055555555c4b0 in install_module (mod=mod@entry=0x555555573bc0) at src/install/dracut-install.c:1617
dracutdevs#27 0x000055555555c93d in install_modules (argc=argc@entry=1, argv=argv@entry=0x7fffffffd6e0) at src/install/dracut-install.c:1952
dracutdevs#28 0x000055555555862a in main (argc=<optimized out>, argv=0x7fffffffd6a8) at src/install/dracut-install.c:2090

Signed-off-by: runsisi <runsisi@hust.edu.cn>
johannbg pushed a commit that referenced this pull request Aug 15, 2022
@runsisi @johannbg
fix(dracut-install): use stripped kernel module path as hash key
2f791b4 
in install_dependent_modules we use &path[kerneldirlen] as the key for inserting,
let's do the same for checking.

otherwise installing kernel module has circular dependency from a custom kernel
module directory will cause infinite recursion and segfault.

$ grep ipmi kbuilt/lib/modules/5.10.121/modules.dep
kernel/drivers/char/ipmi/ipmi_msghandler.ko:
kernel/drivers/char/ipmi/ipmi_devintf.ko: kernel/drivers/char/ipmi/ipmi_msghandler.ko

$ grep ipmi kbuilt/lib/modules/5.10.121/modules.softdep
softdep ipmi_msghandler post: ipmi_devintf

$ ./dracut-install -D /tmp --kerneldir ~/working/kernel/linux-5.10.121/kbuilt/lib/modules/5.10.121 -m ipmi-devintf
Segmentation fault (core dumped)

(gdb) b install_dependent_modules
Breakpoint 1 at 0x7db0: file src/install/dracut-install.c, line 1513.
(gdb) bt
#0  install_dependent_modules (modlist=0x0) at src/install/dracut-install.c:1513
#1  0x000055555555c027 in install_dependent_modules (modlist=modlist@entry=0x555555579e90) at src/install/dracut-install.c:1553
#2  0x000055555555bf1c in install_dependent_modules (modlist=0x5555555799d0) at src/install/dracut-install.c:1548
#3  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557a3f0) at src/install/dracut-install.c:1554
#4  0x000055555555bf1c in install_dependent_modules (modlist=0x555555579d60) at src/install/dracut-install.c:1548
#5  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557b170) at src/install/dracut-install.c:1554
#6  0x000055555555bf1c in install_dependent_modules (modlist=0x55555557a0f0) at src/install/dracut-install.c:1548
#7  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555575320) at src/install/dracut-install.c:1554
#8  0x000055555555bf1c in install_dependent_modules (modlist=0x55555557ab30) at src/install/dracut-install.c:1548
#9  0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557dd60) at src/install/dracut-install.c:1554
#10 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b640) at src/install/dracut-install.c:1548
#11 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e0f0) at src/install/dracut-install.c:1554
#12 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557b9d0) at src/install/dracut-install.c:1548
#13 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574340) at src/install/dracut-install.c:1554
#14 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557cf70) at src/install/dracut-install.c:1548
#15 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x5555555768d0) at src/install/dracut-install.c:1554
#16 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557d750) at src/install/dracut-install.c:1548
#17 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555557e700) at src/install/dracut-install.c:1554
#18 0x000055555555bf1c in install_dependent_modules (modlist=0x55555557de90) at src/install/dracut-install.c:1548
#19 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555581c90) at src/install/dracut-install.c:1554
#20 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571e60) at src/install/dracut-install.c:1548
#21 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b620) at src/install/dracut-install.c:1554
#22 0x000055555555bf1c in install_dependent_modules (modlist=0x555555583000) at src/install/dracut-install.c:1548
#23 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x55555556b640) at src/install/dracut-install.c:1554
#24 0x000055555555bf1c in install_dependent_modules (modlist=0x555555571b40) at src/install/dracut-install.c:1548
#25 0x000055555555c034 in install_dependent_modules (modlist=modlist@entry=0x555555574100) at src/install/dracut-install.c:1554
#26 0x000055555555c4b0 in install_module (mod=mod@entry=0x555555573bc0) at src/install/dracut-install.c:1617
#27 0x000055555555c93d in install_modules (argc=argc@entry=1, argv=argv@entry=0x7fffffffd6e0) at src/install/dracut-install.c:1952
#28 0x000055555555862a in main (argc=<optimized out>, argv=0x7fffffffd6a8) at src/install/dracut-install.c:2090

Signed-off-by: runsisi <runsisi@hust.edu.cn>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Reviewers
No reviews
Assignees
No one assigned
Labels
dracut Issues related to dracut modules Issue tracker for all modules url-lib Issues related to the url-lib module
Projects
None yet
Milestone
No milestone
Development

Successfully merging this pull request may close these issues.

None yet
3 participants
@antonym @haraldh @johannbg