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libceph: add nocephx_sign_messages option

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Support for message signing was merged into 3.19, along with
nocephx_require_signatures option.  But, all that option does is allow
the kernel client to talk to clusters that don't support MSG_AUTH
feature bit.  That's pretty useless, given that it's been supported
since bobtail.

Meanwhile, if one disables message signing on the server side with
"cephx sign messages = false", it becomes impossible to use the kernel
client since it expects messages to be signed if MSG_AUTH was
negotiated.  Add nocephx_sign_messages option to support this use case.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov
2015-10-28 23:52:06 +01:00
parent 859bff51dc
commit a51983e4dd
4 changed files with 22 additions and 2 deletions
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3
include/linux/ceph/libceph.h
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@@ -29,8 +29,9 @@
#define CEPH_OPT_NOSHARE (1<<1) /* don't share client with other sbs */
#define CEPH_OPT_MYIP (1<<2) /* specified my ip */
#define CEPH_OPT_NOCRC (1<<3) /* no data crc on writes */
#define CEPH_OPT_NOMSGAUTH (1<<4) /* not require cephx message signature */
#define CEPH_OPT_NOMSGAUTH (1<<4) /* don't require msg signing feat */
#define CEPH_OPT_TCP_NODELAY (1<<5) /* TCP_NODELAY on TCP sockets */
#define CEPH_OPT_NOMSGSIGN (1<<6) /* don't sign msgs */
#define CEPH_OPT_DEFAULT (CEPH_OPT_TCP_NODELAY)