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path: root/fs/ceph/msgr.h
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2010-05-17ceph: resync headers with userlandSage Weil
Notable changes include pool op defines and types, FLOCK feature bit, and new CMPXATTR osd ops. Signed-off-by: Sage Weil <sage@newdream.net>
2010-05-17ceph: drop src address(es) from message header [new protocol feature]Sage Weil
The CEPH_FEATURE_NOSRCADDR protocol feature avoids putting the full source address in each message header (twice). This patch switches the client to the new scheme, and _requires_ this feature on the server. The server will support both the old and new schemes. That means an old client will work with a new server, but a new client will not work with an old server. Signed-off-by: Sage Weil <sage@newdream.net>
2010-01-29ceph: include type in ceph_entity_addr, filepathSage Weil
Include a type/version in ceph_entity_addr and filepath. Include extra byte in filepath encoding as necessary. Signed-off-by: Sage Weil <sage@newdream.net>
2010-01-14ceph: remove unused erank fieldSage Weil
The ceph_entity_addr erank field is obsolete; remove it. Get rid of trivial addr comparison helpers while we're at it. Signed-off-by: Sage Weil <sage@newdream.net>
2009-12-23ceph: add feature bits to connection handshake (protocol change)Sage Weil
Define supported and required feature set. Fail connection if the server requires features we do not support (TAG_FEATURES), or if the server does not support features we require. Signed-off-by: Sage Weil <sage@newdream.net>
2009-12-23ceph: include transaction id in ceph_msg_header (protocol change)Sage Weil
Many (most?) message types include a transaction id. By including it in the fixed size header, we always have it available even when we are unable to allocate memory for the (larger, variable sized) message body. This will allow us to error out the appropriate request instead of (silently) dropping the reply. Signed-off-by: Sage Weil <sage@newdream.net>
2009-11-18ceph: negotiate authentication protocol; implement AUTH_NONE protocolSage Weil
When we open a monitor session, we send an initial AUTH message listing the auth protocols we support, our entity name, and (possibly) a previously assigned global_id. The monitor chooses a protocol and responds with an initial message. Initially implement AUTH_NONE, a dummy protocol that provides no security, but works within the new framework. It generates 'authorizers' that are used when connecting to (mds, osd) services that simply state our entity name and global_id. This is a wire protocol change. Signed-off-by: Sage Weil <sage@newdream.net>
2009-11-03ceph: use fixed endian encoding for ceph_entity_addrSage Weil
We exchange struct ceph_entity_addr over the wire and store it on disk. The sockaddr_storage.ss_family field, however, is host endianness. So, fix ss_family endianness to big endian when sending/receiving over the wire. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-13ceph: add version field to message headerSage Weil
This makes it easier for individual message types to indicate their particular encoding, and make future changes backward compatible. Signed-off-by: Sage Weil <sage@newdream.net>
2009-10-06ceph: on-wire typesSage Weil
These headers describe the types used to exchange messages between the Ceph client and various servers. All types are little-endian and packed. These headers are shared between the kernel and userspace, so all types are in terms of e.g. __u32. Additionally, we define a few magic values to identify the current version of the protocol(s) in use, so that discrepancies to be detected on mount. Signed-off-by: Sage Weil <sage@newdream.net>