Jan Engelhardt wrote: > On Tuesday 2010-03-23 15:55, Patrick McHardy wrote: > > >>>>> -MODULE_PARM_DESC(ip_list_uid,"owner of /proc/net/xt_recent/* files"); >>>>> -MODULE_PARM_DESC(ip_list_gid,"owning group of /proc/net/xt_recent/* files"); >>>>> +MODULE_PARM_DESC(ip_list_uid, "default owner of /proc/net/xt_recent/* files"); >>>>> +MODULE_PARM_DESC(ip_list_gid, "default owning group of /proc/net/xt_recent/* files"); >>>>> >>>>> >>>> So what will be updating the permissions of the existing proc files? >>>> >>> The administrator with the use of chmod/chown/chgrp. >>> >> I'm not sure whether this will have the desired effect. I vaguely >> recall that proc used to forget about permission changes. That might >> have been fixed, but I was unable to find something in the >> changelogs. >> > > I believe that the procfs alzheimer only applies to > entries that are dynamically created during dentry lookup, > e.g. all the things in /proc/1234. You will note that > the inode numbers of these entries changes over time. > > This is not the case however for anything created with > proc_create_data AFAICT. > > 16:04 linux:~ # ls -il /proc/1/stat > 13294 -r--r--r-- 1 root root 0 Mar 23 16:04 /proc/1/stat > 16:04 linux:~ # ls -il /proc/net/xt_recent/foo > 4026532102 -rw-r--r-- 1 bin root 0 Mar 23 16:04 > /proc/net/xt_recent/foo > > # Drive out cached stuff > 16:04 linux:~ # find / -xdev -type f -print0 | xargs -0 cat >/dev/null > 16:04 linux:~ # echo 3 >/proc/sys/vm/drop_caches > > 16:04 linux:~ # ls -il /proc/1/stat > 13399 -r--r--r-- 1 root root 0 Mar 23 16:04 /proc/1/stat > 16:04 linux:~ # ls -il /proc/net/xt_recent/foo > 4026532102 -rw-r--r-- 1 bin root 0 Mar 23 16:04 /proc/net/xt_recent/foo > > As you can see, /proc/X was reinstantiated, while xt_recent's data > remained. > Sounds good. In any case its not directly related to your patch, so this seems fine. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
