ctdb over TCP
Copyright (C) Andrew Tridgell 2006
+ Copyright (C) Ronnie Sahlberg 2008
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include "includes.h"
-#include "lib/events/events.h"
+#include "lib/tevent/tevent.h"
#include "lib/tdb/include/tdb.h"
#include "system/network.h"
#include "system/filesys.h"
/*
called when a complete packet has come in - should not happen on this socket
+ unless the other side closes the connection with RST or FIN
*/
void ctdb_tcp_tnode_cb(uint8_t *data, size_t cnt, void *private_data)
{
}
ctdb_tcp_stop_connection(node);
- tnode->connect_te = event_add_timed(node->ctdb->ev, tnode, timeval_zero(),
+ tnode->connect_te = event_add_timed(node->ctdb->ev, tnode,
+ timeval_current_ofs(3, 0),
ctdb_tcp_node_connect, node);
}
/* the queue subsystem now owns this fd */
tnode->fd = -1;
-
- /* tell the ctdb layer we are connected */
- node->ctdb->upcalls->node_connected(node);
}
static int ctdb_tcp_get_address(struct ctdb_context *ctdb,
- const char *address, struct in_addr *addr)
+ const char *address, ctdb_sock_addr *addr)
{
- if (inet_pton(AF_INET, address, addr) <= 0) {
- struct hostent *he = gethostbyname(address);
- if (he == NULL || he->h_length > sizeof(*addr)) {
- ctdb_set_error(ctdb, "invalid nework address '%s'\n",
- address);
- return -1;
- }
- memcpy(addr, he->h_addr, he->h_length);
+ if (parse_ip(address, NULL, 0, addr) == 0) {
+ DEBUG(DEBUG_CRIT, (__location__ " Unparsable address : %s.\n", address));
+ return -1;
}
return 0;
}
struct ctdb_tcp_node *tnode = talloc_get_type(node->private_data,
struct ctdb_tcp_node);
struct ctdb_context *ctdb = node->ctdb;
- struct sockaddr_in sock_in;
- struct sockaddr_in sock_out;
+ ctdb_sock_addr sock_in;
+ int sockin_size;
+ int sockout_size;
+ ctdb_sock_addr sock_out;
ctdb_tcp_stop_connection(node);
- tnode->fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
-
- set_nonblocking(tnode->fd);
- set_close_on_exec(tnode->fd);
-
ZERO_STRUCT(sock_out);
#ifdef HAVE_SOCK_SIN_LEN
- sock_out.sin_len = sizeof(sock_out);
+ sock_out.ip.sin_len = sizeof(sock_out);
#endif
- if (ctdb_tcp_get_address(ctdb, node->address.address, &sock_out.sin_addr) != 0) {
+ if (ctdb_tcp_get_address(ctdb, node->address.address, &sock_out) != 0) {
+ return;
+ }
+ switch (sock_out.sa.sa_family) {
+ case AF_INET:
+ sock_out.ip.sin_port = htons(node->address.port);
+ break;
+ case AF_INET6:
+ sock_out.ip6.sin6_port = htons(node->address.port);
+ break;
+ default:
+ DEBUG(DEBUG_ERR, (__location__ " unknown family %u\n",
+ sock_out.sa.sa_family));
return;
}
- sock_out.sin_port = htons(node->address.port);
- sock_out.sin_family = PF_INET;
+ tnode->fd = socket(sock_out.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
+ set_nonblocking(tnode->fd);
+ set_close_on_exec(tnode->fd);
+
+ DEBUG(DEBUG_DEBUG, (__location__ " Created TCP SOCKET FD:%d\n", tnode->fd));
/* Bind our side of the socketpair to the same address we use to listen
* on incoming CTDB traffic.
* a dedicated non-routeable network.
*/
ZERO_STRUCT(sock_in);
-#ifdef HAVE_SOCK_SIN_LEN
- sock_in.sin_len = sizeof(sock_in);
-#endif
- if (ctdb_tcp_get_address(ctdb, ctdb->address.address, &sock_in.sin_addr) != 0) {
+ if (ctdb_tcp_get_address(ctdb, ctdb->address.address, &sock_in) != 0) {
+ DEBUG(DEBUG_ERR, (__location__ " Failed to find our address. Failing bind.\n"));
+ close(tnode->fd);
return;
}
- sock_in.sin_port = htons(0); /* INPORT_ANY is not always available */
- sock_in.sin_family = PF_INET;
- bind(tnode->fd, (struct sockaddr *)&sock_in, sizeof(sock_in));
- if (connect(tnode->fd, (struct sockaddr *)&sock_out, sizeof(sock_out)) != 0 &&
+ /* AIX libs check to see if the socket address and length
+ arguments are consistent with each other on calls like
+ connect(). Can not get by with just sizeof(sock_in),
+ need sizeof(sock_in.ip).
+ */
+ switch (sock_in.sa.sa_family) {
+ case AF_INET:
+ sockin_size = sizeof(sock_in.ip);
+ sockout_size = sizeof(sock_out.ip);
+ break;
+ case AF_INET6:
+ sockin_size = sizeof(sock_in.ip6);
+ sockout_size = sizeof(sock_out.ip6);
+ break;
+ default:
+ DEBUG(DEBUG_ERR, (__location__ " unknown family %u\n",
+ sock_in.sa.sa_family));
+ close(tnode->fd);
+ return;
+ }
+#ifdef HAVE_SOCK_SIN_LEN
+ sock_in.ip.sin_len = sockin_size;
+ sock_out.ip.sin_len = sockout_size;
+#endif
+ bind(tnode->fd, (struct sockaddr *)&sock_in, sockin_size);
+
+ if (connect(tnode->fd, (struct sockaddr *)&sock_out, sockout_size) != 0 &&
errno != EINPROGRESS) {
ctdb_tcp_stop_connection(node);
tnode->connect_te = event_add_timed(ctdb->ev, tnode,
{
struct ctdb_context *ctdb = talloc_get_type(private_data, struct ctdb_context);
struct ctdb_tcp *ctcp = talloc_get_type(ctdb->private_data, struct ctdb_tcp);
- struct sockaddr_in addr;
+ ctdb_sock_addr addr;
socklen_t len;
int fd, nodeid;
struct ctdb_incoming *in;
fd = accept(ctcp->listen_fd, (struct sockaddr *)&addr, &len);
if (fd == -1) return;
- incoming_node = inet_ntoa(addr.sin_addr);
+ incoming_node = ctdb_addr_to_str(&addr);
nodeid = ctdb_ip_to_nodeid(ctdb, incoming_node);
if (nodeid == -1) {
- DEBUG(DEBUG_WARNING, ("Refused connection from unknown node %s\n", incoming_node));
+ DEBUG(DEBUG_ERR, ("Refused connection from unknown node %s\n", incoming_node));
close(fd);
return;
}
set_nonblocking(in->fd);
set_close_on_exec(in->fd);
+ DEBUG(DEBUG_DEBUG, (__location__ " Created SOCKET FD:%d to incoming ctdb connection\n", fd));
+
setsockopt(in->fd,SOL_SOCKET,SO_KEEPALIVE,(char *)&one,sizeof(one));
in->queue = ctdb_queue_setup(ctdb, in, in->fd, CTDB_TCP_ALIGNMENT,
- ctdb_tcp_read_cb, in);
+ ctdb_tcp_read_cb, in, "ctdbd-%s", incoming_node);
}
{
struct ctdb_tcp *ctcp = talloc_get_type(ctdb->private_data,
struct ctdb_tcp);
- struct sockaddr_in sock;
+ ctdb_sock_addr sock;
int lock_fd, i;
const char *lock_path = "/tmp/.ctdb_socket_lock";
struct flock lock;
+ int one = 1;
+ int sock_size;
+ struct tevent_fd *fde;
/* in order to ensure that we don't get two nodes with the
same adddress, we must make the bind() and listen() calls
return -1;
}
- for (i=0;i<ctdb->num_nodes;i++) {
+ for (i=0; i < ctdb->num_nodes; i++) {
+ if (ctdb->nodes[i]->flags & NODE_FLAGS_DELETED) {
+ continue;
+ }
+
/* if node_ip is specified we will only try to bind to that
ip.
*/
}
ZERO_STRUCT(sock);
-#ifdef HAVE_SOCK_SIN_LEN
- sock.sin_len = sizeof(sock);
-#endif
- sock.sin_port = htons(ctdb->nodes[i]->address.port);
- sock.sin_family = PF_INET;
if (ctdb_tcp_get_address(ctdb,
ctdb->nodes[i]->address.address,
- &sock.sin_addr) != 0) {
+ &sock) != 0) {
continue;
}
- if (bind(ctcp->listen_fd, (struct sockaddr * )&sock,
- sizeof(sock)) == 0) {
+ switch (sock.sa.sa_family) {
+ case AF_INET:
+ sock.ip.sin_port = htons(ctdb->nodes[i]->address.port);
+ sock_size = sizeof(sock.ip);
+ break;
+ case AF_INET6:
+ sock.ip6.sin6_port = htons(ctdb->nodes[i]->address.port);
+ sock_size = sizeof(sock.ip6);
+ break;
+ default:
+ DEBUG(DEBUG_ERR, (__location__ " unknown family %u\n",
+ sock.sa.sa_family));
+ continue;
+ }
+#ifdef HAVE_SOCK_SIN_LEN
+ sock.ip.sin_len = sock_size;
+#endif
+
+ ctcp->listen_fd = socket(sock.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
+ if (ctcp->listen_fd == -1) {
+ ctdb_set_error(ctdb, "socket failed\n");
+ continue;
+ }
+
+ set_close_on_exec(ctcp->listen_fd);
+
+ setsockopt(ctcp->listen_fd,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+
+ if (bind(ctcp->listen_fd, (struct sockaddr * )&sock, sock_size) == 0) {
break;
}
+
+ if (errno == EADDRNOTAVAIL) {
+ DEBUG(DEBUG_DEBUG,(__location__ " Failed to bind() to socket. %s(%d)\n",
+ strerror(errno), errno));
+ } else {
+ DEBUG(DEBUG_ERR,(__location__ " Failed to bind() to socket. %s(%d)\n",
+ strerror(errno), errno));
+ }
}
if (i == ctdb->num_nodes) {
ctdb->address.address,
ctdb->address.port,
ctdb->pnn));
-
+ /* do we start out in DISABLED mode? */
+ if (ctdb->start_as_disabled != 0) {
+ DEBUG(DEBUG_INFO, ("This node is configured to start in DISABLED state\n"));
+ ctdb->nodes[i]->flags |= NODE_FLAGS_DISABLED;
+ }
+ /* do we start out in STOPPED mode? */
+ if (ctdb->start_as_stopped != 0) {
+ DEBUG(DEBUG_INFO, ("This node is configured to start in STOPPED state\n"));
+ ctdb->nodes[i]->flags |= NODE_FLAGS_STOPPED;
+ }
+
if (listen(ctcp->listen_fd, 10) == -1) {
goto failed;
}
- event_add_fd(ctdb->ev, ctcp, ctcp->listen_fd, EVENT_FD_READ|EVENT_FD_AUTOCLOSE,
- ctdb_listen_event, ctdb);
+ fde = event_add_fd(ctdb->ev, ctcp, ctcp->listen_fd, EVENT_FD_READ,
+ ctdb_listen_event, ctdb);
+ tevent_fd_set_auto_close(fde);
close(lock_fd);
return 0;
{
struct ctdb_tcp *ctcp = talloc_get_type(ctdb->private_data,
struct ctdb_tcp);
- struct sockaddr_in sock;
+ ctdb_sock_addr sock;
+ int sock_size;
int one = 1;
-
- ctcp->listen_fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
- if (ctcp->listen_fd == -1) {
- ctdb_set_error(ctdb, "socket failed\n");
- return -1;
- }
-
- set_close_on_exec(ctcp->listen_fd);
-
- setsockopt(ctcp->listen_fd,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+ struct tevent_fd *fde;
/* we can either auto-bind to the first available address, or we can
use a specified address */
}
ZERO_STRUCT(sock);
-#ifdef HAVE_SOCK_SIN_LEN
- sock.sin_len = sizeof(sock);
-#endif
- sock.sin_port = htons(ctdb->address.port);
- sock.sin_family = PF_INET;
-
if (ctdb_tcp_get_address(ctdb, ctdb->address.address,
- &sock.sin_addr) != 0) {
+ &sock) != 0) {
goto failed;
}
- if (bind(ctcp->listen_fd, (struct sockaddr * )&sock, sizeof(sock)) != 0) {
+ switch (sock.sa.sa_family) {
+ case AF_INET:
+ sock.ip.sin_port = htons(ctdb->address.port);
+ sock_size = sizeof(sock.ip);
+ break;
+ case AF_INET6:
+ sock.ip6.sin6_port = htons(ctdb->address.port);
+ sock_size = sizeof(sock.ip6);
+ break;
+ default:
+ DEBUG(DEBUG_ERR, (__location__ " unknown family %u\n",
+ sock.sa.sa_family));
+ goto failed;
+ }
+#ifdef HAVE_SOCK_SIN_LEN
+ sock.ip.sin_len = sock_size;
+#endif
+
+ ctcp->listen_fd = socket(sock.sa.sa_family, SOCK_STREAM, IPPROTO_TCP);
+ if (ctcp->listen_fd == -1) {
+ ctdb_set_error(ctdb, "socket failed\n");
+ return -1;
+ }
+
+ set_close_on_exec(ctcp->listen_fd);
+
+ setsockopt(ctcp->listen_fd,SOL_SOCKET,SO_REUSEADDR,(char *)&one,sizeof(one));
+
+ if (bind(ctcp->listen_fd, (struct sockaddr * )&sock, sock_size) != 0) {
+ DEBUG(DEBUG_ERR,(__location__ " Failed to bind() to socket. %s(%d)\n", strerror(errno), errno));
goto failed;
}
goto failed;
}
- event_add_fd(ctdb->ev, ctcp, ctcp->listen_fd, EVENT_FD_READ|EVENT_FD_AUTOCLOSE,
+ fde = event_add_fd(ctdb->ev, ctcp, ctcp->listen_fd, EVENT_FD_READ,
ctdb_listen_event, ctdb);
+ tevent_fd_set_auto_close(fde);
return 0;
failed:
- close(ctcp->listen_fd);
+ if (ctcp->listen_fd != -1) {
+ close(ctcp->listen_fd);
+ }
ctcp->listen_fd = -1;
return -1;
}
git.samba.org / sahlberg / ctdb.git / blobdiff