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Author SHA1 Message Date
Jan Beulich a43a5ccdfa xenbus_dev: add missing error check to watch handling
So far only the watch path was checked to be zero terminated, while
the watch token was merely assumed to be.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-02-03 16:07:05 -05:00
Ian Campbell 50bf73796e xenbus: maximum buffer size is XENSTORE_PAYLOAD_MAX
Use this now that it is defined even though it happens to be == PAGE_SIZE.

The code which takes requests from userspace already validates against the size
of this buffer so no further checks are required to ensure that userspace
requests comply with the protocol in this respect.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-01-04 17:02:04 -05:00
Konrad Rzeszutek Wilk b79d2ff98c xen/xenbus-frontend: Fix compile error with randconfig
drivers/xen/xenbus/xenbus_dev_frontend.c: In function 'xenbus_init':
drivers/xen/xenbus/xenbus_dev_frontend.c:609:2: error: implicit declaration of function 'xen_domain'

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-12-20 10:47:44 -05:00
Bastian Blank fe7acdbec1 xen/xenbus-frontend: Make error message more clear
Add the work frontend to the error message because we now also have a
backend device.

Signed-off-by: Bastian Blank <waldi@debian.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-12-16 13:29:44 -05:00
Bastian Blank 2fb3683e7b xen: Add xenbus device driver
Access to xenbus is currently handled via xenfs. This adds a device
driver for xenbus and makes xenfs use this code.

Signed-off-by: Bastian Blank <waldi@debian.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2011-12-16 13:29:39 -05:00