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xenbus: allow any xenbus command over /proc/xen/xenbus 

When xenstored is in another domain, we need to be able to send any
command over xenbus.  This doesn't pose a security problem because
its up to xenstored to determine whether a given client is allowed
to use a particular command anyway.

From linux-2.5.18-xen.hg 68d582b0ad05.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
hifive-unleashed-5.1
Diego Ongaro 2010-09-01 09:18:54 -07:00 committed by Jeremy Fitzhardinge
parent fb27cfbcbd
commit 6d6df2e412
1 changed files with 2 additions and 16 deletions
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18
drivers/xen/xenfs/xenbus.c
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@ -486,21 +486,6 @@ static ssize_t xenbus_file_write(struct file *filp,
msg_type = u->u.msg.type;
switch (msg_type) {
case XS_TRANSACTION_START:
case XS_TRANSACTION_END:
case XS_DIRECTORY:
case XS_READ:
case XS_GET_PERMS:
case XS_RELEASE:
case XS_GET_DOMAIN_PATH:
case XS_WRITE:
case XS_MKDIR:
case XS_RM:
case XS_SET_PERMS:
/* Send out a transaction */
ret = xenbus_write_transaction(msg_type, u);
break;
case XS_WATCH:
case XS_UNWATCH:
/* (Un)Ask for some path to be watched for changes */
@ -508,7 +493,8 @@ static ssize_t xenbus_file_write(struct file *filp,
break;
default:
ret = -EINVAL;
/* Send out a transaction */
ret = xenbus_write_transaction(msg_type, u);
break;
}
if (ret != 0)