/*
* Copyright 2006-2008, Sine Nomine Associates and others.
* All Rights Reserved.
- *
+ *
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
#include <afsconfig.h>
#include <afs/param.h>
-RCSID
- ("$Header$");
-
-#include <sys/types.h>
-#include <stdio.h>
-#ifdef AFS_NT40_ENV
-#include <winsock2.h>
-#include <time.h>
-#else
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <sys/time.h>
-#endif
-#include <errno.h>
-#include <assert.h>
-#include <signal.h>
-#include <string.h>
-
+#include <roken.h>
+#include <afs/opr.h>
#include <rx/xdr.h>
#include <afs/afsint.h>
-#include "nfs.h"
#include <afs/errors.h>
+#include <rx/rx_queue.h>
+
+#include "nfs.h"
#include "daemon_com.h"
#include "lwp.h"
#include "lock.h"
#include "vnode.h"
#include "volume.h"
#include "partition.h"
+#include "common.h"
#include <rx/rx_queue.h>
#ifdef USE_UNIX_SOCKETS
#include <sys/un.h>
#endif
-/*@printflike@*/ extern void Log(const char *format, ...);
-
-#ifdef osi_Assert
-#undef osi_Assert
-#endif
-#define osi_Assert(e) (void)(e)
-
-int (*V_BreakVolumeCallbacks) ();
+int (*V_BreakVolumeCallbacks) (VolumeId);
#define MAXHANDLERS 4 /* Up to 4 clients; must be at least 2, so that
* move = dump+restore can run on single server */
static int SYNC_ask_internal(SYNC_client_state * state, SYNC_command * com, SYNC_response * res);
+
+/*
+ * On AIX, connect() and bind() require use of SUN_LEN() macro;
+ * sizeof(struct sockaddr_un) will not suffice.
+ */
+#if defined(AFS_AIX_ENV) && defined(USE_UNIX_SOCKETS)
+#define AFS_SOCKADDR_LEN(sa) SUN_LEN(sa)
+#else
+#define AFS_SOCKADDR_LEN(sa) sizeof(*sa)
+#endif
+
+
/* daemon com SYNC general interfaces */
/**
void
SYNC_getAddr(SYNC_endpoint_t * endpoint, SYNC_sockaddr_t * addr)
{
-#ifdef USE_UNIX_SOCKETS
- char tbuffer[AFSDIR_PATH_MAX];
-#endif /* USE_UNIX_SOCKETS */
-
memset(addr, 0, sizeof(*addr));
#ifdef USE_UNIX_SOCKETS
- strcompose(tbuffer, AFSDIR_PATH_MAX, AFSDIR_SERVER_LOCAL_DIRPATH, "/",
- endpoint->un, NULL);
addr->sun_family = AF_UNIX;
- strncpy(addr->sun_path, tbuffer, (sizeof(struct sockaddr_un) - sizeof(short)));
+ snprintf(addr->sun_path, sizeof(addr->sun_path), "%s/%s",
+ AFSDIR_SERVER_LOCAL_DIRPATH, endpoint->un);
+ addr->sun_path[sizeof(addr->sun_path) - 1] = '\0';
#else /* !USE_UNIX_SOCKETS */
#ifdef STRUCT_SOCKADDR_HAS_SA_LEN
addr->sin_len = sizeof(struct sockaddr_in);
* @post socket of domain specified in endpoint structure is created and
* returned to caller.
*/
-int
+osi_socket
SYNC_getSock(SYNC_endpoint_t * endpoint)
{
- int sd;
- assert((sd = socket(endpoint->domain, SOCK_STREAM, 0)) >= 0);
+ osi_socket sd;
+ opr_Verify((sd = socket(endpoint->domain, SOCK_STREAM, 0)) >= 0);
return sd;
}
{ 3, 3, 3, 5, 5, 5, 7, 15, 16, 24, 32, 40, 48, 0 };
time_t *timeout = &backoff[0];
- if (state->fd >= 0) {
+ if (state->fd != OSI_NULLSOCKET) {
return 1;
}
for (;;) {
state->fd = SYNC_getSock(&state->endpoint);
- if (connect(state->fd, (struct sockaddr *)&addr, sizeof(addr)) >= 0)
+ if (connect(state->fd, (struct sockaddr *)&addr, AFS_SOCKADDR_LEN(&addr)) >= 0)
return 1;
if (!*timeout)
break;
int
SYNC_disconnect(SYNC_client_state * state)
{
-#ifdef AFS_NT40_ENV
- closesocket(state->fd);
-#else
- close(state->fd);
-#endif
- state->fd = -1;
+ rk_closesocket(state->fd);
+ state->fd = OSI_NULLSOCKET;
return 0;
}
afs_int32
SYNC_closeChannel(SYNC_client_state * state)
{
- afs_int32 code;
SYNC_command com;
SYNC_response res;
SYNC_PROTO_BUF_DECL(ores);
- if (state->fd == -1)
+ if (state->fd == OSI_NULLSOCKET)
return SYNC_OK;
memset(&com, 0, sizeof(com));
int tries;
afs_uint32 now, timeout, code=SYNC_OK;
- if (state->fatal_error) {
- return SYNC_COM_ERROR;
- }
-
- if (state->fd == -1) {
+ if (state->fd == OSI_NULLSOCKET) {
SYNC_connect(state);
}
- if (state->fd == -1) {
- state->fatal_error = 1;
+ if (state->fd == OSI_NULLSOCKET) {
return SYNC_COM_ERROR;
}
now = FT_ApproxTime();
timeout = now + state->hard_timeout;
- for (tries = 0;
+ for (tries = 0;
(tries <= state->retry_limit) && (now <= timeout);
tries++, now = FT_ApproxTime()) {
code = SYNC_ask_internal(state, com, res);
SYNC_reconnect(state);
/* try again */
} else {
- /*
- * unknown (probably protocol-specific) response code, pass it up to
- * the caller, and let them deal with it
+ /*
+ * unknown (probably protocol-specific) response code, pass it up to
+ * the caller, and let them deal with it
*/
break;
}
}
if (code == SYNC_COM_ERROR) {
- Log("SYNC_ask: fatal protocol error on circuit '%s'; disabling sync "
- "protocol until next server restart\n",
- state->proto_name);
- state->fatal_error = 1;
+ Log("SYNC_ask: too many / too latent fatal protocol errors on circuit "
+ "'%s'; giving up (tries %d timeout %d)\n",
+ state->proto_name, tries, timeout);
}
return code;
struct iovec iov[2];
#endif
- if (state->fd == -1) {
+ if (state->fd == OSI_NULLSOCKET) {
Log("SYNC_ask: invalid sync file descriptor on circuit '%s'\n",
state->proto_name);
res->hdr.response = SYNC_COM_ERROR;
goto done;
}
+ /*
+ * fill in some common header fields
+ */
com->hdr.proto_version = state->proto_version;
+ com->hdr.pkt_seq = ++state->pkt_seq;
+ com->hdr.com_seq = ++state->com_seq;
+#ifdef AFS_NT40_ENV
+ com->hdr.pid = 0;
+ com->hdr.tid = 0;
+#else
+ com->hdr.pid = getpid();
+#ifdef AFS_PTHREAD_ENV
+ com->hdr.tid = afs_pointer_to_int(pthread_self());
+#else
+ {
+ PROCESS handle = LWP_ThreadId();
+ com->hdr.tid = (handle) ? handle->index : 0;
+ }
+#endif /* !AFS_PTHREAD_ENV */
+#endif /* !AFS_NT40_ENV */
memcpy(buf, &com->hdr, sizeof(com->hdr));
if (com->payload.len) {
- memcpy(buf + sizeof(com->hdr), com->payload.buf,
+ memcpy(buf + sizeof(com->hdr), com->payload.buf,
com->hdr.command_len - sizeof(com->hdr));
}
res->recv_len = n;
if (n < sizeof(res->hdr)) {
- Log("SYNC_ask: response too short on circuit '%s'\n",
+ Log("SYNC_ask: response too short on circuit '%s'\n",
state->proto_name);
res->hdr.response = SYNC_COM_ERROR;
goto done;
#endif
if ((n - sizeof(res->hdr)) > res->payload.len) {
- Log("SYNC_ask: response too long on circuit '%s'\n",
+ Log("SYNC_ask: response too long on circuit '%s'\n",
state->proto_name);
res->hdr.response = SYNC_COM_ERROR;
goto done;
}
-/*
- * daemon com SYNC server-side interfaces
+/*
+ * daemon com SYNC server-side interfaces
*/
/**
* receive a command structure off a sync socket.
*
- * @param[in] fd socket descriptor
- * @param[out] com sync command object to be populated
+ * @param[in] state pointer to server-side state object
+ * @param[in] fd file descriptor on which to perform i/o
+ * @param[out] com sync command object to be populated
*
* @return operation status
* @retval SYNC_OK command received
* @retval SYNC_COM_ERROR there was a socket communications error
*/
afs_int32
-SYNC_getCom(int fd, SYNC_command * com)
+SYNC_getCom(SYNC_server_state_t * state,
+ osi_socket fd,
+ SYNC_command * com)
{
int n;
afs_int32 code = SYNC_OK;
/**
* write a response structure to a sync socket.
*
- * @param[in] fd
- * @param[in] res
+ * @param[in] state handle to server-side state object
+ * @param[in] fd file descriptor on which to perform i/o
+ * @param[in] res handle to response packet
*
* @return operation status
* @retval SYNC_OK
* @retval SYNC_COM_ERROR
*/
afs_int32
-SYNC_putRes(int fd, SYNC_response * res)
+SYNC_putRes(SYNC_server_state_t * state,
+ osi_socket fd,
+ SYNC_response * res)
{
int n;
afs_int32 code = SYNC_OK;
#ifdef AFS_DEMAND_ATTACH_FS
res->hdr.flags |= SYNC_FLAG_DAFS_EXTENSIONS;
#endif
+ res->hdr.proto_version = state->proto_version;
+ res->hdr.pkt_seq = ++state->pkt_seq;
+ res->hdr.res_seq = ++state->res_seq;
memcpy(buf, &res->hdr, sizeof(res->hdr));
if (res->payload.len) {
- memcpy(buf + sizeof(res->hdr), res->payload.buf,
+ memcpy(buf + sizeof(res->hdr), res->payload.buf,
res->hdr.response_len - sizeof(res->hdr));
}
int
SYNC_verifyProtocolString(char * buf, size_t len)
{
- int ret = 0;
size_t s_len;
- s_len = afs_strnlen(buf, len);
+ s_len = strnlen(buf, len);
return (s_len == len) ? 1 : 0;
}
Log("SYNC_bindSock: setsockopt failed with (%d)\n", errno);
for (numTries = 0; numTries < state->bind_retry_limit; numTries++) {
- code = bind(state->fd,
- (struct sockaddr *)&state->addr,
- sizeof(state->addr));
+ code = bind(state->fd,
+ (struct sockaddr *)&state->addr,
+ AFS_SOCKADDR_LEN(&state->addr));
if (code == 0)
break;
Log("SYNC_bindSock: bind failed with (%d), will sleep and retry\n",
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