diff options
| author | Niels de Vos <ndevos@redhat.com> | 2016-09-16 17:29:21 +0200 |
|---|---|---|
| committer | Raghavendra G <rgowdapp@redhat.com> | 2016-09-19 02:32:03 -0700 |
| commit | e9b39527d5dcfba95c4c52a522c8ce1f4512ac21 (patch) | |
| tree | b52eef4523085daa76f41352b62fdab13f7ca16f /rpc/rpc-lib | |
| parent | e38dff5b4e0f0a25db664810fc3617eac44673ce (diff) | |
rpc: increase RPC/XID with each callback
The RPC/XID for callbacks has been hardcoded to GF_UNIVERSAL_ANSWER. In
Wireshark these RPC-calls are marked as "RPC retransmissions" because of
the repeating RPC/XID. This is most confusing when verifying the
callbacks that the upcall framework sends. There is no way to see the
difference between real retransmissions and new callbacks.
This change was verified by create and removal of files through
different Gluster clients. The RPC/XID is increased on a per connection
(or client) base. The expectations of the RPC protocol are met this way.
Change-Id: I2116bec0e294df4046d168d8bcbba011284cd0b2
BUG: 1377097
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/15524
Smoke: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Diffstat (limited to 'rpc/rpc-lib')
| -rw-r--r-- | rpc/rpc-lib/src/rpc-transport.h | 1 | ||||
| -rw-r--r-- | rpc/rpc-lib/src/rpcsvc.c | 21 |
2 files changed, 19 insertions, 3 deletions
diff --git a/rpc/rpc-lib/src/rpc-transport.h b/rpc/rpc-lib/src/rpc-transport.h index 227911a5935..f0add065065 100644 --- a/rpc/rpc-lib/src/rpc-transport.h +++ b/rpc/rpc-lib/src/rpc-transport.h @@ -205,6 +205,7 @@ struct rpc_transport { uint64_t total_bytes_read; uint64_t total_bytes_write; + uint32_t xid; /* RPC/XID used for callbacks */ struct list_head list; int bind_insecure; diff --git a/rpc/rpc-lib/src/rpcsvc.c b/rpc/rpc-lib/src/rpcsvc.c index 05d269609c5..f07e745a4b3 100644 --- a/rpc/rpc-lib/src/rpcsvc.c +++ b/rpc/rpc-lib/src/rpcsvc.c @@ -870,6 +870,20 @@ err: return txrecord; } +static uint32_t +rpc_callback_new_callid (struct rpc_transport *trans) +{ + uint32_t callid = 0; + + pthread_mutex_lock (&trans->lock); + { + callid = ++trans->xid; + } + pthread_mutex_unlock (&trans->lock); + + return callid; +} + int rpcsvc_fill_callback (int prognum, int progver, int procnum, int payload, uint32_t xid, struct rpc_msg *request) @@ -1048,6 +1062,7 @@ rpcsvc_callback_submit (rpcsvc_t *rpc, rpc_transport_t *trans, rpc_transport_req_t req; int ret = -1; int proglen = 0; + uint32_t xid = 0; if (!rpc) { goto out; @@ -1059,11 +1074,11 @@ rpcsvc_callback_submit (rpcsvc_t *rpc, rpc_transport_t *trans, proglen += iov_length (proghdr, proghdrcount); } + xid = rpc_callback_new_callid (trans); + request_iob = rpcsvc_callback_build_record (rpc, prog->prognum, prog->progver, procnum, - proglen, - GF_UNIVERSAL_ANSWER, - &rpchdr); + proglen, xid, &rpchdr); if (!request_iob) { gf_log ("rpcsvc", GF_LOG_WARNING, "cannot build rpc-record"); |