2 * Unix SMB/CIFS implementation.
3 * Join infiniband wrapper and ctdb.
5 * Copyright (C) Sven Oehme <oehmes@de.ibm.com> 2006
7 * Major code contributions by Peter Somogyi <psomogyi@gamax.hu>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
24 #include <system/network.h>
26 #include "ctdb_private.h"
27 #include "ibwrapper.h"
30 int ctdb_ibw_get_address(struct ctdb_context *ctdb,
31 const char *address, struct in_addr *addr)
33 if (inet_pton(AF_INET, address, addr) <= 0) {
34 struct hostent *he = gethostbyname(address);
35 if (he == NULL || he->h_length > sizeof(*addr)) {
36 ctdb_set_error(ctdb, "invalid nework address '%s'\n",
40 memcpy(addr, he->h_addr, he->h_length);
45 int ctdb_ibw_node_connect(struct ctdb_node *node)
47 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
51 assert(cn->conn!=NULL);
53 rc = ibw_connect(cn->conn, &node->address.ip, node);
55 DEBUG(DEBUG_ERR, ("ctdb_ibw_node_connect/ibw_connect failed - retrying...\n"));
56 /* try again once a second */
57 event_add_timed(node->ctdb->ev, node, timeval_current_ofs(1, 0),
58 ctdb_ibw_node_connect_event, node);
61 /* continues at ibw_ctdb.c/IBWC_CONNECTED in good case */
65 void ctdb_ibw_node_connect_event(struct event_context *ev, struct timed_event *te,
66 struct timeval t, void *private_data)
68 struct ctdb_node *node = talloc_get_type(private_data, struct ctdb_node);
70 ctdb_ibw_node_connect(node);
73 int ctdb_ibw_connstate_handler(struct ibw_ctx *ctx, struct ibw_conn *conn)
76 /* ctx->state changed */
78 case IBWS_INIT: /* ctx start - after ibw_init */
80 case IBWS_READY: /* after ibw_bind & ibw_listen */
82 case IBWS_CONNECT_REQUEST: /* after [IBWS_READY + incoming request] */
83 /* => [(ibw_accept)IBWS_READY | (ibw_disconnect)STOPPED | ERROR] */
84 if (ibw_accept(ctx, conn, NULL)) {
85 DEBUG(DEBUG_ERR, ("connstate_handler/ibw_accept failed\n"));
87 } /* else continue in IBWC_CONNECTED */
89 case IBWS_STOPPED: /* normal stop <= ibw_disconnect+(IBWS_READY | IBWS_CONNECT_REQUEST) */
90 /* TODO: have a CTDB upcall for which CTDB should wait in a (final) loop */
92 case IBWS_ERROR: /* abnormal state; ibw_stop must be called after this */
101 /* conn->state changed */
102 switch(conn->state) {
103 case IBWC_INIT: /* conn start - internal state */
105 case IBWC_CONNECTED: { /* after ibw_accept or ibw_connect */
106 struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node);
107 if (node!=NULL) { /* after ibw_connect */
108 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
110 node->ctdb->upcalls->node_connected(node);
111 ctdb_flush_cn_queue(cn);
112 } else { /* after ibw_accept */
113 /* NOP in CTDB case */
116 case IBWC_DISCONNECTED: { /* after ibw_disconnect */
117 struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node);
119 node->ctdb->upcalls->node_dead(node);
121 /* normal + intended disconnect => not reconnecting in this layer */
124 struct ctdb_node *node = talloc_get_type(conn->conn_userdata, struct ctdb_node);
126 struct ctdb_ibw_node *cn = talloc_get_type(node->private_data, struct ctdb_ibw_node);
127 struct ibw_ctx *ictx = cn->conn->ctx;
129 DEBUG(DEBUG_DEBUG, ("IBWC_ERROR, reconnecting...\n"));
130 talloc_free(cn->conn); /* internal queue content is destroyed */
131 cn->conn = (void *)ibw_conn_new(ictx, node);
132 event_add_timed(node->ctdb->ev, node, timeval_current_ofs(1, 0),
133 ctdb_ibw_node_connect_event, node);
145 int ctdb_ibw_receive_handler(struct ibw_conn *conn, void *buf, int n)
147 struct ctdb_context *ctdb = talloc_get_type(conn->ctx->ctx_userdata, struct ctdb_context);
148 void *buf2; /* future TODO: a solution for removal of this */
153 assert(conn->state==IBWC_CONNECTED);
155 /* so far "buf" is an ib-registered memory area
156 * and being reused for next receive
157 * noticed that HL requires talloc-ed memory to be stolen */
158 buf2 = talloc_zero_size(conn, n);
159 CTDB_NO_MEMORY(ctdb, buf2);
161 memcpy(buf2, buf, n);
163 ctdb->upcalls->recv_pkt(ctdb, (uint8_t *)buf2, (uint32_t)n);