Messages in this thread Patch in this message | | | Date | Thu, 09 Mar 2006 00:33:35 +0800 | From | Yi Yang <> | Subject | [2.6.16-rc5-m3 PATCH] inotify: add the monitor for the event source |
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Current inotify implementation only focus on change of file system, but it doesn't know who results in this change, this patch adds three fields to struct inotify_event, tgid, uid and gid, they will save process ID, user ID and user group ID of the process which leads to change in the file system, such software as anti-virus can make use of this feature to monitor who is modifying a specific file.
Signed-off-by: Yi Yang <yang.y.yi@gmail.com> --- a/include/linux/inotify.h.orig 2006-03-08 21:40:12.000000000 +0800 +++ b/include/linux/inotify.h 2006-03-08 23:51:54.000000000 +0800 @@ -19,6 +19,9 @@ struct inotify_event { __s32 wd; /* watch descriptor */ __u32 mask; /* watch mask */ __u32 cookie; /* cookie to synchronize two events */ + __u32 tgid; /* process ID of the event source */ + __u32 uid; /* user ID of the responding process */ + __u32 gid; /* group ID of the responding process */ __u32 len; /* length (including nulls) of name */ char name[0]; /* stub for possible name */ }; --- a/fs/inotify.c.orig 2006-03-08 20:58:31.000000000 +0800 +++ b/fs/inotify.c 2006-03-09 00:05:47.000000000 +0800 @@ -219,6 +219,9 @@ static struct inotify_kernel_event * ker kevent->event.wd = wd; kevent->event.mask = mask; kevent->event.cookie = cookie; + kevent->event.tgid = current->tgid; + kevent->event.uid = current->uid; + kevent->event.gid = current->gid; INIT_LIST_HEAD(&kevent->list);
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