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authorIlya Dryomov2020-10-30 13:30:51 +0100
committerIlya Dryomov2020-12-14 23:21:50 +0100
commita5cbd5fc22d5043a8a76e15d75d031fe24d1f69c (patch)
tree2379298419dcbfaddef2d7bbd1cba86ba68c8bd4 /include/linux/ceph/decode.h
parent8921f25116af3081fb56871feb93f2dcaf52c722 (diff)
libceph, ceph: get and handle cluster maps with addrvecs
In preparation for msgr2, make the cluster send us maps with addrvecs including both LEGACY and MSGR2 addrs instead of a single LEGACY addr. This means advertising support for SERVER_NAUTILUS and also some older features: SERVER_MIMIC, MONENC and MONNAMES. MONNAMES and MONENC are actually pre-argonaut, we just never updated ceph_monmap_decode() for them. Decoding is unconditional, see commit 23c625ce3065 ("libceph: assume argonaut on the server side"). SERVER_MIMIC doesn't bear any meaning for the kernel client. Since ceph_decode_entity_addrvec() is guarded by encoding version checks (and in msgr2 case it is guarded implicitly by the fact that server is speaking msgr2), we assume MSG_ADDR2 for it. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'include/linux/ceph/decode.h')
-rw-r--r--include/linux/ceph/decode.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h
index 450384fe487c..9a934e04f841 100644
--- a/include/linux/ceph/decode.h
+++ b/include/linux/ceph/decode.h
@@ -220,6 +220,7 @@ static inline void ceph_encode_timespec64(struct ceph_timespec *tv,
*/
#define CEPH_ENTITY_ADDR_TYPE_NONE 0
#define CEPH_ENTITY_ADDR_TYPE_LEGACY __cpu_to_le32(1)
+#define CEPH_ENTITY_ADDR_TYPE_MSGR2 __cpu_to_le32(2)
static inline void ceph_encode_banner_addr(struct ceph_entity_addr *a)
{
@@ -239,6 +240,9 @@ static inline void ceph_decode_banner_addr(struct ceph_entity_addr *a)
extern int ceph_decode_entity_addr(void **p, void *end,
struct ceph_entity_addr *addr);
+int ceph_decode_entity_addrvec(void **p, void *end, bool msgr2,
+ struct ceph_entity_addr *addr);
+
/*
* encoders
*/