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Currently a non-root user may have the rights to create directories in configfs, but they default to being owned by root, so you can't create anything inside of the directories you yourself created. phone:/config/usb_gadget/g1/configs $ id; mkdir b.2; ls -lZ; chown system:system b.2 uid=1000(system) gid=1000(system) groups=1000(system),1004(input),1007(log),1011(adb),... drwxr-xr-x 3 system system u:object_r:configfs:s0 0 2020-12-28 06:03 b.1 drwxr-xr-x 3 root root u:object_r:configfs:s0 0 2020-12-28 06:51 b.2 chown: 'b.2' to 'system:system': Operation not permitted phone:/config/usb_gadget/g1/configs $ ln -s ../../../../usb_gadget/g1/functions/ffs.adb b.2/function0 ln: cannot create symbolic link from '../../../../usb_gadget/g1/functions/ffs.adb' to 'b.2/function0': Permission denied Test: With this change b.2 is owned by system:system and the ln succeeds. Link: https://lore.kernel.org/lkml/20210123205516.2738060-1-zenczykowski@gmail.com/ Bug: 172793258 Signed-off-by: Maciej Żenczykowski <maze@google.com> Change-Id: Ia907b2def940197b44aa87b337d37c5dde9c5b91 |
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| .. | ||
| configfs_internal.h | ||
| dir.c | ||
| file.c | ||
| inode.c | ||
| item.c | ||
| Kconfig | ||
| Makefile | ||
| mount.c | ||
| symlink.c | ||