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* ceph: include type in ceph_entity_addr, filepathSage Weil2010-01-291-2/+3
| | | | | | | 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>
* ceph: remove unused erank fieldSage Weil2010-01-141-16/+2
| | | | | | | The ceph_entity_addr erank field is obsolete; remove it.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>
* ceph: add feature bits to connection handshake (protocol change)Sage Weil2009-12-231-1/+4
| | | | | | | | 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>
* ceph: include transaction id in ceph_msg_header (protocol change)Sage Weil2009-12-231-1/+2
| | | | | | | | | | 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>
* ceph: negotiate authentication protocol; implement AUTH_NONE protocolSage Weil2009-11-181-6/+15
| | | | | | | | | | | | | | | | 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>
* ceph: use fixed endian encoding for ceph_entity_addrSage Weil2009-11-031-1/+1
| | | | | | | | | 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>
* ceph: add version field to message headerSage Weil2009-10-131-1/+2
| | | | | | | | 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>
* ceph: on-wire typesSage Weil2009-10-061-0/+157
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>
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