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authorRajesh Amaravathi <rajesh@redhat.com>2012-12-17 16:29:42 +0530
committerVijay Bellur <vbellur@redhat.com>2013-01-18 03:50:33 -0800
commit9036bd1a7bab68351c38d65cd6a1c8af150467bb (patch)
tree73fc6db9fd164dd4d816a10a971b9e99fc947109 /xlators/nfs/server/src/nlm4.c
parentfd8b19af1713f2800af743d851706b96ca15d9ec (diff)
nlm: use virtual ip of server to connect to client
In cases where the servers use virtual ip's, this commit makes sure we use them and not the physical ip. This change also refactors code around nlm4_establish_callback by sending granted msg only after a connection establishment, and removing the separate thread creation. Change-Id: I087362c547a25aa52ef7fc6653845a3863466ee6 BUG: 888283 Signed-off-by: Rajesh Amaravathi <rajesh@redhat.com> Reviewed-on: http://review.gluster.org/4326 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/nfs/server/src/nlm4.c')
-rw-r--r--xlators/nfs/server/src/nlm4.c134
1 files changed, 74 insertions, 60 deletions
diff --git a/xlators/nfs/server/src/nlm4.c b/xlators/nfs/server/src/nlm4.c
index 4ee3596..498342e 100644
--- a/xlators/nfs/server/src/nlm4.c
+++ b/xlators/nfs/server/src/nlm4.c
@@ -345,13 +345,12 @@ nlm_set_rpc_clnt (rpc_clnt_t *rpc_clnt, char *caller_name)
break;
}
}
+
if (!nlmclnt_found) {
nlmclnt = GF_CALLOC (1, sizeof(*nlmclnt),
gf_nfs_mt_nlm4_nlmclnt);
- if (nlmclnt == NULL) {
- gf_log (GF_NLM, GF_LOG_ERROR, "mem-alloc error");
+ if (nlmclnt == NULL)
goto ret;
- }
INIT_LIST_HEAD(&nlmclnt->fdes);
INIT_LIST_HEAD(&nlmclnt->nlm_clients);
@@ -360,6 +359,7 @@ nlm_set_rpc_clnt (rpc_clnt_t *rpc_clnt, char *caller_name)
list_add (&nlmclnt->nlm_clients, &nlm_client_list);
nlmclnt->caller_name = gf_strdup (caller_name);
}
+
if (nlmclnt->rpc_clnt == NULL) {
nlmclnt->rpc_clnt = rpc_clnt_ref (rpc_clnt);
}
@@ -880,50 +880,64 @@ nlm4svc_send_granted_cbk (struct rpc_req *req, struct iovec *iov, int count,
return 0;
}
-int nlm_rpcclnt_notify (struct rpc_clnt *rpc, void *mydata,
- rpc_clnt_event_t fn, void *data)
+void
+nlm4svc_send_granted (nfs3_call_state_t *cs);
+
+int
+nlm_rpcclnt_notify (struct rpc_clnt *rpc_clnt, void *mydata,
+ rpc_clnt_event_t fn, void *data)
{
- nlm_condmutex_t *cm = NULL;
- int ret;
- cm = mydata;
+ int ret = 0;
+ char *caller_name = NULL;
+ nfs3_call_state_t *cs = NULL;
+
+ cs = mydata;
+ caller_name = cs->args.nlm4_lockargs.alock.caller_name;
+
switch (fn) {
case RPC_CLNT_CONNECT:
- ret = pthread_cond_broadcast (&cm->cond);
- if (ret!=0)
- gf_log (GF_NLM, GF_LOG_ERROR, "cond_broadcast error %s",
- strerror (errno));
+ ret = nlm_set_rpc_clnt (rpc_clnt, caller_name);
+ if (ret == -1) {
+ gf_log (GF_NLM, GF_LOG_ERROR, "Failed to set rpc clnt");
+ goto err;
+ }
+ rpc_clnt_unref (rpc_clnt);
+ nlm4svc_send_granted (cs);
+
break;
+
case RPC_CLNT_MSG:
break;
+
case RPC_CLNT_DISCONNECT:
- nlm_unset_rpc_clnt(rpc);
+ nlm_unset_rpc_clnt (rpc_clnt);
break;
}
+
+ err:
return 0;
}
-void
-nlm4svc_send_granted (nfs3_call_state_t *cs);
-
void *
nlm4_establish_callback (void *csarg)
{
- nfs3_call_state_t *cs = NULL;
- union gf_sock_union sock_union;
- dict_t *options = NULL;
- char peerip[INET6_ADDRSTRLEN+1], *portstr = NULL;
- rpc_clnt_t *rpc_clnt = NULL;
- int port = -1;
- int ret = -1;
- char *caller_name = NULL;
+ int ret = -1;
+ nfs3_call_state_t *cs = NULL;
+ union gf_sock_union sock_union;
+ dict_t *options = NULL;
+ char peerip[INET6_ADDRSTRLEN+1] = {0};
+ char *portstr = NULL;
+ char myip[INET6_ADDRSTRLEN+1] = {0};
+ rpc_clnt_t *rpc_clnt = NULL;
+ int port = -1;
+
cs = (nfs3_call_state_t *) csarg;
glusterfs_this_set (cs->nfsx);
- caller_name = cs->args.nlm4_lockargs.alock.caller_name;
-
rpc_transport_get_peeraddr (cs->trans, NULL, 0, &sock_union.storage,
sizeof (sock_union.storage));
+
switch (sock_union.sa.sa_family) {
case AF_INET6:
/* can not come here as NLM listens on IPv4 */
@@ -939,6 +953,9 @@ nlm4_establish_callback (void *csarg)
case AF_INET:
inet_ntop (AF_INET, &sock_union.sin.sin_addr, peerip,
INET6_ADDRSTRLEN+1);
+ inet_ntop (AF_INET, &(((struct sockaddr_in *)&cs->req->trans->myinfo.sockaddr)->sin_addr),
+ myip, INET6_ADDRSTRLEN + 1);
+
break;
default:
break;
@@ -978,6 +995,13 @@ nlm4_establish_callback (void *csarg)
gf_log (GF_NLM, GF_LOG_ERROR, "dict_set_dynstr error");
goto err;
}
+
+ /* needed in case virtual IP is used */
+ ret = dict_set_dynstr (options, "transport.socket.source-addr",
+ gf_strdup (myip));
+ if (ret == -1)
+ goto err;
+
ret = dict_set_str (options, "auth-null", "on");
if (ret == -1) {
gf_log (GF_NLM, GF_LOG_ERROR, "dict_set_dynstr error");
@@ -990,32 +1014,25 @@ nlm4_establish_callback (void *csarg)
gf_log (GF_NLM, GF_LOG_ERROR, "rpc_clnt NULL");
goto err;
}
- nlm_condmutex_t *cm;
- cm = GF_CALLOC (1, sizeof(*cm), gf_nfs_mt_nlm4_cm);
- pthread_mutex_init (&cm->mutex, NULL);
- pthread_cond_init (&cm->cond, NULL);
- ret = rpc_clnt_register_notify (rpc_clnt, nlm_rpcclnt_notify,
- cm);
+
+ ret = rpc_clnt_register_notify (rpc_clnt, nlm_rpcclnt_notify, cs);
if (ret == -1) {
gf_log (GF_NLM, GF_LOG_ERROR,"rpc_clnt_register_connect error");
goto err;
}
+
+ /* After this connect succeeds, granted msg is sent in notify */
ret = rpc_transport_connect (rpc_clnt->conn.trans, port);
- pthread_cond_wait (&cm->cond, &cm->mutex);
- pthread_mutex_destroy (&cm->mutex);
- GF_FREE (cm);
- rpc_clnt_set_connected (&rpc_clnt->conn);
- ret = nlm_set_rpc_clnt (rpc_clnt, caller_name);
- if (ret == -1) {
- gf_log (GF_NLM, GF_LOG_ERROR, "dict_set_ptr error");
- goto err;
- }
- nlm4svc_send_granted (cs);
+
+ if (ret == -1 && EINPROGRESS == errno)
+ ret = 0;
+
err:
- if (rpc_clnt) {
+ if (ret == -1 && rpc_clnt) {
rpc_clnt_unref (rpc_clnt);
}
- return NULL;
+
+ return rpc_clnt;
}
void
@@ -1028,12 +1045,17 @@ nlm4svc_send_granted (nfs3_call_state_t *cs)
struct iobuf *iobuf = NULL;
struct iobref *iobref = NULL;
char peerip[INET6_ADDRSTRLEN+1];
- pthread_t thr;
union gf_sock_union sock_union;
+ rpc_clnt = nlm_get_rpc_clnt (cs->args.nlm4_lockargs.alock.caller_name);
+ if (rpc_clnt == NULL) {
+ nlm4_establish_callback ((void*)cs);
+ return;
+ }
rpc_transport_get_peeraddr (cs->trans, NULL, 0, &sock_union.storage,
sizeof (sock_union.storage));
+
switch (sock_union.sa.sa_family) {
case AF_INET6:
inet_ntop (AF_INET6, &sock_union.sin6.sin6_addr, peerip,
@@ -1042,15 +1064,9 @@ nlm4svc_send_granted (nfs3_call_state_t *cs)
case AF_INET:
inet_ntop (AF_INET, &sock_union.sin.sin_addr, peerip,
INET6_ADDRSTRLEN+1);
+ break;
default:
break;
- /* FIXME: handle the error */
- }
-
- rpc_clnt = nlm_get_rpc_clnt (cs->args.nlm4_lockargs.alock.caller_name);
- if (rpc_clnt == NULL) {
- pthread_create (&thr, NULL, nlm4_establish_callback, (void*)cs);
- return;
}
testargs.cookie = cs->args.nlm4_lockargs.cookie;
@@ -1078,10 +1094,8 @@ nlm4svc_send_granted (nfs3_call_state_t *cs)
iobref_add (iobref, iobuf);
ret = rpc_clnt_submit (rpc_clnt, &nlm4clntprog, NLM4_GRANTED,
- nlm4svc_send_granted_cbk,
- &outmsg, 1,
- NULL,
- 0, iobref, cs->frame, NULL, 0,
+ nlm4svc_send_granted_cbk, &outmsg, 1,
+ NULL, 0, iobref, cs->frame, NULL, 0,
NULL, 0, NULL);
if (ret < 0) {
@@ -1276,12 +1290,11 @@ nlm4svc_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
cs = frame->local;
caller_name = cs->args.nlm4_lockargs.alock.caller_name;
- transit_cnt = nlm_dec_transit_count (cs->fd,
- caller_name);
+ transit_cnt = nlm_dec_transit_count (cs->fd, caller_name);
+
if (op_ret == -1) {
if (transit_cnt == 0)
- nlm_search_and_delete (cs->fd,
- caller_name);
+ nlm_search_and_delete (cs->fd, caller_name);
stat = nlm4_errno_to_nlm4stat (op_errno);
goto err;
} else {
@@ -1295,6 +1308,7 @@ nlm4svc_lock_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
err:
if (cs->args.nlm4_lockargs.block) {
cs->frame = copy_frame (frame);
+ frame->local = NULL;
nlm4svc_send_granted (cs);
} else {
nlm4_generic_reply (cs->req, cs->args.nlm4_lockargs.cookie,