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-rw-r--r--xlators/protocol/rpc/rpc-transport/socket/src/socket.c2308
1 files changed, 0 insertions, 2308 deletions
diff --git a/xlators/protocol/rpc/rpc-transport/socket/src/socket.c b/xlators/protocol/rpc/rpc-transport/socket/src/socket.c
deleted file mode 100644
index 4ca7121e8..000000000
--- a/xlators/protocol/rpc/rpc-transport/socket/src/socket.c
+++ /dev/null
@@ -1,2308 +0,0 @@
-/*
- Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
- This file is part of GlusterFS.
-
- GlusterFS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3 of the License,
- or (at your option) any later version.
-
- GlusterFS is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
-*/
-
-
-#ifndef _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-#include "socket.h"
-#include "name.h"
-#include "dict.h"
-#include "rpc-transport.h"
-#include "logging.h"
-#include "xlator.h"
-#include "byte-order.h"
-#include "common-utils.h"
-#include "compat-errno.h"
-#include "protocol-common.h"
-
-#include "glusterfs-xdr.h"
-#include <fcntl.h>
-#include <errno.h>
-#include <netinet/tcp.h>
-
-#define GF_LOG_ERRNO(errno) ((errno == ENOTCONN) ? GF_LOG_DEBUG : GF_LOG_ERROR)
-#define SA(ptr) ((struct sockaddr *)ptr)
-
-#define __socket_proto_reset_pending(priv) do { \
- memset (&priv->incoming.frag.vector, 0, \
- sizeof (priv->incoming.frag.vector)); \
- priv->incoming.frag.pending_vector = \
- &priv->incoming.frag.vector; \
- priv->incoming.frag.pending_vector->iov_base = \
- priv->incoming.frag.fragcurrent; \
- priv->incoming.pending_vector = \
- priv->incoming.frag.pending_vector; \
- } while (0);
-
-
-#define __socket_proto_update_pending(priv) \
- do { \
- uint32_t remaining_fragsize = 0; \
- if (priv->incoming.frag.pending_vector->iov_len == 0) { \
- remaining_fragsize = RPC_FRAGSIZE (priv->incoming.fraghdr) \
- - priv->incoming.frag.bytes_read; \
- \
- priv->incoming.frag.pending_vector->iov_len = \
- remaining_fragsize > priv->incoming.frag.remaining_size \
- ? priv->incoming.frag.remaining_size : remaining_fragsize; \
- \
- priv->incoming.frag.remaining_size -= \
- priv->incoming.frag.pending_vector->iov_len; \
- } \
- } while (0);
-
-#define __socket_proto_update_priv_after_read(priv, ret, bytes_read) \
- { \
- priv->incoming.frag.fragcurrent += bytes_read; \
- priv->incoming.frag.bytes_read += bytes_read; \
- \
- if ((ret > 0) || (priv->incoming.frag.remaining_size != 0)) { \
- if (priv->incoming.frag.remaining_size != 0) { \
- __socket_proto_reset_pending (priv); \
- } \
- \
- gf_log (this->name, GF_LOG_TRACE, "partial read on non-blocking socket"); \
- \
- break; \
- } \
- }
-
-#define __socket_proto_init_pending(priv, size) \
- do { \
- uint32_t remaining_fragsize = 0; \
- remaining_fragsize = RPC_FRAGSIZE (priv->incoming.fraghdr) \
- - priv->incoming.frag.bytes_read; \
- \
- __socket_proto_reset_pending (priv); \
- \
- priv->incoming.frag.pending_vector->iov_len = \
- remaining_fragsize > size ? size : remaining_fragsize; \
- \
- priv->incoming.frag.remaining_size = \
- size - priv->incoming.frag.pending_vector->iov_len; \
- \
-} while (0);
-
-
-/* This will be used in a switch case and breaks from the switch case if all
- * the pending data is not read.
- */
-#define __socket_proto_read(priv, ret) \
- { \
- size_t bytes_read = 0; \
- \
- __socket_proto_update_pending (priv); \
- \
- ret = __socket_readv (this, \
- priv->incoming.pending_vector, 1, \
- &priv->incoming.pending_vector, \
- &priv->incoming.pending_count, \
- &bytes_read); \
- if (ret == -1) { \
- gf_log (this->name, GF_LOG_TRACE, \
- "reading from socket failed. Error (%s), " \
- "peer (%s)", strerror (errno), \
- this->peerinfo.identifier); \
- break; \
- } \
- __socket_proto_update_priv_after_read (priv, ret, bytes_read); \
- }
-
-
-int socket_init (rpc_transport_t *this);
-
-/*
- * return value:
- * 0 = success (completed)
- * -1 = error
- * > 0 = incomplete
- */
-
-int
-__socket_rwv (rpc_transport_t *this, struct iovec *vector, int count,
- struct iovec **pending_vector, int *pending_count, size_t *bytes,
- int write)
-{
- socket_private_t *priv = NULL;
- int sock = -1;
- int ret = -1;
- struct iovec *opvector = NULL;
- int opcount = 0;
- int moved = 0;
-
- priv = this->private;
- sock = priv->sock;
-
- opvector = vector;
- opcount = count;
-
- if (bytes != NULL) {
- *bytes = 0;
- }
-
- while (opcount) {
- if (write) {
- ret = writev (sock, opvector, opcount);
-
- if (ret == 0 || (ret == -1 && errno == EAGAIN)) {
- /* done for now */
- break;
- }
- } else {
- ret = readv (sock, opvector, opcount);
- if (ret == -1 && errno == EAGAIN) {
- /* done for now */
- break;
- }
- }
-
- if (ret == 0) {
- /* Mostly due to 'umount' in client */
-
- gf_log (this->name, GF_LOG_TRACE,
- "EOF from peer %s", this->peerinfo.identifier);
- opcount = -1;
- errno = ENOTCONN;
- break;
- }
- if (ret == -1) {
- if (errno == EINTR)
- continue;
-
- gf_log (this->name, GF_LOG_TRACE,
- "%s failed (%s)", write ? "writev" : "readv",
- strerror (errno));
- opcount = -1;
- break;
- }
-
- if (bytes != NULL) {
- *bytes += ret;
- }
-
- moved = 0;
-
- while (moved < ret) {
- if ((ret - moved) >= opvector[0].iov_len) {
- moved += opvector[0].iov_len;
- opvector++;
- opcount--;
- } else {
- opvector[0].iov_len -= (ret - moved);
- opvector[0].iov_base += (ret - moved);
- moved += (ret - moved);
- }
- while (opcount && !opvector[0].iov_len) {
- opvector++;
- opcount--;
- }
- }
- }
-
- if (pending_vector)
- *pending_vector = opvector;
-
- if (pending_count)
- *pending_count = opcount;
-
- return opcount;
-}
-
-
-int
-__socket_readv (rpc_transport_t *this, struct iovec *vector, int count,
- struct iovec **pending_vector, int *pending_count,
- size_t *bytes)
-{
- int ret = -1;
-
- ret = __socket_rwv (this, vector, count,
- pending_vector, pending_count, bytes, 0);
-
- return ret;
-}
-
-
-int
-__socket_writev (rpc_transport_t *this, struct iovec *vector, int count,
- struct iovec **pending_vector, int *pending_count)
-{
- int ret = -1;
-
- ret = __socket_rwv (this, vector, count,
- pending_vector, pending_count, NULL, 1);
-
- return ret;
-}
-
-
-int
-__socket_disconnect (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
-
- priv = this->private;
-
- if (priv->sock != -1) {
- ret = shutdown (priv->sock, SHUT_RDWR);
- priv->connected = -1;
- gf_log (this->name, GF_LOG_TRACE,
- "shutdown() returned %d. set connection state to -1",
- ret);
- }
-
- return ret;
-}
-
-
-int
-__socket_server_bind (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
- int opt = 1;
-
- priv = this->private;
-
- ret = setsockopt (priv->sock, SOL_SOCKET, SO_REUSEADDR,
- &opt, sizeof (opt));
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "setsockopt() for SO_REUSEADDR failed (%s)",
- strerror (errno));
- }
-
- ret = bind (priv->sock, (struct sockaddr *)&this->myinfo.sockaddr,
- this->myinfo.sockaddr_len);
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "binding to %s failed: %s",
- this->myinfo.identifier, strerror (errno));
- if (errno == EADDRINUSE) {
- gf_log (this->name, GF_LOG_ERROR,
- "Port is already in use");
- }
- }
-
- return ret;
-}
-
-
-int
-__socket_nonblock (int fd)
-{
- int flags = 0;
- int ret = -1;
-
- flags = fcntl (fd, F_GETFL);
-
- if (flags != -1)
- ret = fcntl (fd, F_SETFL, flags | O_NONBLOCK);
-
- return ret;
-}
-
-
-int
-__socket_nodelay (int fd)
-{
- int on = 1;
- int ret = -1;
-
- ret = setsockopt (fd, IPPROTO_TCP, TCP_NODELAY,
- &on, sizeof (on));
- if (!ret)
- gf_log ("", GF_LOG_TRACE,
- "NODELAY enabled for socket %d", fd);
-
- return ret;
-}
-
-int
-__socket_connect_finish (int fd)
-{
- int ret = -1;
- int optval = 0;
- socklen_t optlen = sizeof (int);
-
- ret = getsockopt (fd, SOL_SOCKET, SO_ERROR, (void *)&optval, &optlen);
-
- if (ret == 0 && optval) {
- errno = optval;
- ret = -1;
- }
-
- return ret;
-}
-
-
-void
-__socket_reset (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
-
- priv = this->private;
-
- /* TODO: use mem-pool on incoming data */
-
- if (priv->incoming.iobuf) {
- iobuf_unref (priv->incoming.iobuf);
- }
-
- if (priv->incoming.vectoriob) {
- iobuf_unref (priv->incoming.vectoriob);
- }
-
- memset (&priv->incoming, 0, sizeof (priv->incoming));
-
- event_unregister (this->ctx->event_pool, priv->sock, priv->idx);
-
- close (priv->sock);
- priv->sock = -1;
- priv->idx = -1;
- priv->connected = -1;
-}
-
-
-struct ioq *
-__socket_ioq_new (rpc_transport_t *this, rpc_transport_msg_t *msg)
-{
- socket_private_t *priv = NULL;
- struct ioq *entry = NULL;
- int count = 0;
-
- priv = this->private;
-
- /* TODO: use mem-pool */
- entry = GF_CALLOC (1, sizeof (*entry), gf_common_mt_ioq);
- if (!entry)
- return NULL;
-
- count = msg->rpchdrcount + msg->proghdrcount + msg->progpayloadcount;
-
- assert (count <= MAX_IOVEC);
-
- if (msg->rpchdr != NULL) {
- memcpy (&entry->vector[0], msg->rpchdr,
- sizeof (struct iovec) * msg->rpchdrcount);
- entry->count += msg->rpchdrcount;
- }
-
- if (msg->proghdr != NULL) {
- memcpy (&entry->vector[entry->count], msg->proghdr,
- sizeof (struct iovec) * msg->proghdrcount);
- entry->count += msg->proghdrcount;
- }
-
- if (msg->progpayload != NULL) {
- memcpy (&entry->vector[entry->count], msg->progpayload,
- sizeof (struct iovec) * msg->progpayloadcount);
- entry->count += msg->progpayloadcount;
- }
-
- entry->pending_vector = entry->vector;
- entry->pending_count = entry->count;
-
- if (msg->iobref != NULL)
- entry->iobref = iobref_ref (msg->iobref);
-
- INIT_LIST_HEAD (&entry->list);
-
- return entry;
-}
-
-
-void
-__socket_ioq_entry_free (struct ioq *entry)
-{
- list_del_init (&entry->list);
- if (entry->iobref)
- iobref_unref (entry->iobref);
-
- /* TODO: use mem-pool */
- GF_FREE (entry);
-}
-
-
-void
-__socket_ioq_flush (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- struct ioq *entry = NULL;
-
- priv = this->private;
-
- while (!list_empty (&priv->ioq)) {
- entry = priv->ioq_next;
- __socket_ioq_entry_free (entry);
- }
-
- return;
-}
-
-
-int
-__socket_ioq_churn_entry (rpc_transport_t *this, struct ioq *entry)
-{
- int ret = -1;
-
- ret = __socket_writev (this, entry->pending_vector,
- entry->pending_count,
- &entry->pending_vector,
- &entry->pending_count);
-
- if (ret == 0) {
- /* current entry was completely written */
- assert (entry->pending_count == 0);
- __socket_ioq_entry_free (entry);
- }
-
- return ret;
-}
-
-
-int
-__socket_ioq_churn (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = 0;
- struct ioq *entry = NULL;
-
- priv = this->private;
-
- while (!list_empty (&priv->ioq)) {
- /* pick next entry */
- entry = priv->ioq_next;
-
- ret = __socket_ioq_churn_entry (this, entry);
-
- if (ret != 0)
- break;
- }
-
- if (list_empty (&priv->ioq)) {
- /* all pending writes done, not interested in POLLOUT */
- priv->idx = event_select_on (this->ctx->event_pool,
- priv->sock, priv->idx, -1, 0);
- }
-
- return ret;
-}
-
-
-int
-socket_event_poll_err (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->lock);
- {
- __socket_ioq_flush (this);
- __socket_reset (this);
- }
- pthread_mutex_unlock (&priv->lock);
-
- rpc_transport_notify (this, RPC_TRANSPORT_DISCONNECT, this);
-
- return ret;
-}
-
-
-int
-socket_event_poll_out (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->connected == 1) {
- ret = __socket_ioq_churn (this);
-
- if (ret == -1) {
- __socket_disconnect (this);
- }
- }
- }
- pthread_mutex_unlock (&priv->lock);
-
- ret = rpc_transport_notify (this, RPC_TRANSPORT_MSG_SENT, NULL);
-
- return ret;
-}
-
-
-inline int
-__socket_read_simple_msg (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = 0;
- uint32_t remaining_size = 0;
- size_t bytes_read = 0;
-
- priv = this->private;
-
- switch (priv->incoming.frag.simple_state) {
-
- case SP_STATE_SIMPLE_MSG_INIT:
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- __socket_proto_init_pending (priv, remaining_size);
-
- priv->incoming.frag.simple_state =
- SP_STATE_READING_SIMPLE_MSG;
-
- /* fall through */
-
- case SP_STATE_READING_SIMPLE_MSG:
- ret = 0;
-
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- if (remaining_size > 0) {
- ret = __socket_readv (this,
- priv->incoming.pending_vector, 1,
- &priv->incoming.pending_vector,
- &priv->incoming.pending_count,
- &bytes_read);
- }
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_TRACE,
- "reading from socket failed. Error (%s), "
- "peer (%s)", strerror (errno),
- this->peerinfo.identifier);
- break;
- }
-
- priv->incoming.frag.bytes_read += bytes_read;
- priv->incoming.frag.fragcurrent += bytes_read;
-
- if (ret > 0) {
- gf_log (this->name, GF_LOG_TRACE,
- "partial read on non-blocking socket.");
- break;
- }
-
- if (ret == 0) {
- priv->incoming.frag.simple_state
- = SP_STATE_SIMPLE_MSG_INIT;
- }
- }
-
- return ret;
-}
-
-
-inline int
-__socket_read_simple_request (rpc_transport_t *this)
-{
- return __socket_read_simple_msg (this);
-}
-
-
-#define rpc_cred_addr(buf) (buf + RPC_MSGTYPE_SIZE + RPC_CALL_BODY_SIZE - 4)
-
-#define rpc_verf_addr(fragcurrent) (fragcurrent - 4)
-
-
-inline int
-__socket_read_vectored_request (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = 0;
- uint32_t credlen = 0, verflen = 0;
- char *addr = NULL;
- struct iobuf *iobuf = NULL;
- uint32_t remaining_size = 0;
- uint32_t gluster_write_proc_len = 0;
-
- priv = this->private;
-
- switch (priv->incoming.frag.call_body.request.vector_state) {
- case SP_STATE_VECTORED_REQUEST_INIT:
- addr = rpc_cred_addr (iobuf_ptr (priv->incoming.iobuf));
-
- /* also read verf flavour and verflen */
- credlen = ntoh32 (*((uint32_t *)addr))
- + RPC_AUTH_FLAVOUR_N_LENGTH_SIZE;
-
- __socket_proto_init_pending (priv, credlen);
-
- priv->incoming.frag.call_body.request.vector_state =
- SP_STATE_READING_CREDBYTES;
-
- /* fall through */
-
- case SP_STATE_READING_CREDBYTES:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.call_body.request.vector_state =
- SP_STATE_READ_CREDBYTES;
-
- /* fall through */
-
- case SP_STATE_READ_CREDBYTES:
- addr = rpc_verf_addr (priv->incoming.frag.fragcurrent);
-
- /* FIXME: Also handle procedures other than glusterfs-write
- * here
- */
- /* also read proc-header */
- gluster_write_proc_len = sizeof (gfs3_write_req);
-
- verflen = ntoh32 (*((uint32_t *)addr))
- + gluster_write_proc_len;
-
- __socket_proto_init_pending (priv, verflen);
-
- priv->incoming.frag.call_body.request.vector_state
- = SP_STATE_READING_VERFBYTES;
-
- /* fall through */
-
- case SP_STATE_READING_VERFBYTES:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.call_body.request.vector_state =
- SP_STATE_READ_VERFBYTES;
-
- /* fall through */
-
- case SP_STATE_READ_VERFBYTES:
- if (priv->incoming.vectoriob == NULL) {
- iobuf = iobuf_get (this->ctx->iobuf_pool);
- if (!iobuf) {
- gf_log (this->name, GF_LOG_ERROR,
- "unable to allocate IO buffer "
- "for peer %s",
- this->peerinfo.identifier);
- ret = -1;
- break;
- }
-
- priv->incoming.vectoriob = iobuf;
- priv->incoming.frag.fragcurrent = iobuf_ptr (iobuf);
- }
-
- priv->incoming.frag.call_body.request.vector_state =
- SP_STATE_READING_PROG;
-
- /* fall through */
-
- case SP_STATE_READING_PROG:
- /* now read the remaining rpc msg into buffer pointed by
- * fragcurrent
- */
-
- ret = __socket_read_simple_msg (this);
-
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- if ((ret == -1)
- || ((ret == 0)
- && (remaining_size == 0)
- && RPC_LASTFRAG (priv->incoming.fraghdr))) {
- priv->incoming.frag.call_body.request.vector_state
- = SP_STATE_VECTORED_REQUEST_INIT;
- priv->incoming.vectoriob_size
- = (unsigned long)priv->incoming.frag.fragcurrent
- - (unsigned long)iobuf_ptr (priv->incoming.vectoriob);
- }
- break;
- }
-
- return ret;
-}
-
-
-#define rpc_msgtype_addr(buf) (buf + 4)
-
-#define rpc_prognum_addr(buf) (buf + RPC_MSGTYPE_SIZE + 4)
-
-#define rpc_procnum_addr(buf) (buf + RPC_MSGTYPE_SIZE + 12)
-
-
-inline int
-__socket_read_request (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- uint32_t prognum = 0, procnum = 0;
- uint32_t remaining_size = 0;
- int ret = -1;
- char *buf = NULL;
-
- priv = this->private;
-
- switch (priv->incoming.frag.call_body.request.header_state) {
-
- case SP_STATE_REQUEST_HEADER_INIT:
-
- __socket_proto_init_pending (priv, RPC_CALL_BODY_SIZE);
-
- priv->incoming.frag.call_body.request.header_state
- = SP_STATE_READING_RPCHDR1;
-
- /* fall through */
-
- case SP_STATE_READING_RPCHDR1:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.call_body.request.header_state =
- SP_STATE_READ_RPCHDR1;
-
- /* fall through */
-
- case SP_STATE_READ_RPCHDR1:
- buf = rpc_prognum_addr (iobuf_ptr (priv->incoming.iobuf));
- prognum = ntoh32 (*((uint32_t *)buf));
-
- buf = rpc_procnum_addr (iobuf_ptr (priv->incoming.iobuf));
- procnum = ntoh32 (*((uint32_t *)buf));
-
- if ((prognum == GLUSTER3_1_FOP_PROGRAM)
- && (procnum == GF_FOP_WRITE)) {
- ret = __socket_read_vectored_request (this);
- } else {
- ret = __socket_read_simple_request (this);
- }
-
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- if ((ret == -1)
- || ((ret == 0)
- && (remaining_size == 0)
- && (RPC_LASTFRAG (priv->incoming.fraghdr)))) {
- priv->incoming.frag.call_body.request.header_state =
- SP_STATE_REQUEST_HEADER_INIT;
- }
-
- break;
- }
-
- return ret;
-}
-
-
-inline int
-__socket_read_accepted_successful_reply (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = 0;
- struct iobuf *iobuf = NULL;
- uint32_t gluster_read_rsp_hdr_len = 0;
-
- priv = this->private;
-
- switch (priv->incoming.frag.call_body.reply.accepted_success_state) {
-
- case SP_STATE_ACCEPTED_SUCCESS_REPLY_INIT:
- gluster_read_rsp_hdr_len = sizeof (gfs3_read_rsp);
-
- __socket_proto_init_pending (priv, gluster_read_rsp_hdr_len);
-
- priv->incoming.frag.call_body.reply.accepted_success_state
- = SP_STATE_READING_PROC_HEADER;
-
- /* fall through */
-
- case SP_STATE_READING_PROC_HEADER:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.call_body.reply.accepted_success_state
- = SP_STATE_READ_PROC_HEADER;
-
- /* fall through */
-
- case SP_STATE_READ_PROC_HEADER:
- if (priv->incoming.vectoriob == NULL) {
- iobuf = iobuf_get (this->ctx->iobuf_pool);
- if (iobuf == NULL) {
- ret = -1;
- goto out;
- }
-
- priv->incoming.vectoriob = iobuf;
- }
-
- priv->incoming.frag.fragcurrent
- = iobuf_ptr (priv->incoming.vectoriob);
-
- /* now read the entire remaining msg into new iobuf */
- ret = __socket_read_simple_msg (this);
- if ((ret == -1)
- || ((ret == 0)
- && RPC_LASTFRAG (priv->incoming.fraghdr))) {
- priv->incoming.frag.call_body.reply.accepted_success_state
- = SP_STATE_ACCEPTED_SUCCESS_REPLY_INIT;
- }
-
- break;
- }
-
-out:
- return ret;
-}
-
-#define rpc_reply_verflen_addr(fragcurrent) ((char *)fragcurrent - 4)
-#define rpc_reply_accept_status_addr(fragcurrent) ((char *)fragcurrent - 4)
-
-inline int
-__socket_read_accepted_reply (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
- char *buf = NULL;
- uint32_t verflen = 0, len = 0;
- uint32_t remaining_size = 0;
-
- priv = this->private;
-
- switch (priv->incoming.frag.call_body.reply.accepted_state) {
-
- case SP_STATE_ACCEPTED_REPLY_INIT:
- __socket_proto_init_pending (priv,
- RPC_AUTH_FLAVOUR_N_LENGTH_SIZE);
-
- priv->incoming.frag.call_body.reply.accepted_state
- = SP_STATE_READING_REPLY_VERFLEN;
-
- /* fall through */
-
- case SP_STATE_READING_REPLY_VERFLEN:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.call_body.reply.accepted_state
- = SP_STATE_READ_REPLY_VERFLEN;
-
- /* fall through */
-
- case SP_STATE_READ_REPLY_VERFLEN:
- buf = rpc_reply_verflen_addr (priv->incoming.frag.fragcurrent);
-
- verflen = ntoh32 (*((uint32_t *) buf));
-
- /* also read accept status along with verf data */
- len = verflen + RPC_ACCEPT_STATUS_LEN;
-
- __socket_proto_init_pending (priv, len);
-
- priv->incoming.frag.call_body.reply.accepted_state
- = SP_STATE_READING_REPLY_VERFBYTES;
-
- /* fall through */
-
- case SP_STATE_READING_REPLY_VERFBYTES:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.call_body.reply.accepted_state
- = SP_STATE_READ_REPLY_VERFBYTES;
-
- buf = rpc_reply_accept_status_addr (priv->incoming.frag.fragcurrent);
-
- priv->incoming.frag.call_body.reply.accept_status
- = ntoh32 (*(uint32_t *) buf);
-
- /* fall through */
-
- case SP_STATE_READ_REPLY_VERFBYTES:
-
- if (priv->incoming.frag.call_body.reply.accept_status
- == SUCCESS) {
- ret = __socket_read_accepted_successful_reply (this);
- } else {
- /* read entire remaining msg into buffer pointed to by
- * fragcurrent
- */
- ret = __socket_read_simple_msg (this);
- }
-
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- if ((ret == -1)
- || ((ret == 0)
- && (remaining_size == 0)
- && (RPC_LASTFRAG (priv->incoming.fraghdr)))) {
- priv->incoming.frag.call_body.reply.accepted_state
- = SP_STATE_ACCEPTED_REPLY_INIT;
- }
-
- break;
- }
-
- return ret;
-}
-
-
-inline int
-__socket_read_denied_reply (rpc_transport_t *this)
-{
- return __socket_read_simple_msg (this);
-}
-
-
-#define rpc_reply_status_addr(fragcurrent) ((char *)fragcurrent - 4)
-
-
-inline int
-__socket_read_vectored_reply (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = 0;
- char *buf = NULL;
- uint32_t remaining_size = 0;
-
- priv = this->private;
-
- switch (priv->incoming.frag.call_body.reply.status_state) {
-
- case SP_STATE_ACCEPTED_REPLY_INIT:
- __socket_proto_init_pending (priv, RPC_REPLY_STATUS_SIZE);
-
- priv->incoming.frag.call_body.reply.status_state
- = SP_STATE_READING_REPLY_STATUS;
-
- /* fall through */
-
- case SP_STATE_READING_REPLY_STATUS:
- __socket_proto_read (priv, ret);
-
- buf = rpc_reply_status_addr (priv->incoming.frag.fragcurrent);
-
- priv->incoming.frag.call_body.reply.accept_status
- = ntoh32 (*((uint32_t *) buf));
-
- priv->incoming.frag.call_body.reply.status_state
- = SP_STATE_READ_REPLY_STATUS;
-
- /* fall through */
-
- case SP_STATE_READ_REPLY_STATUS:
- if (priv->incoming.frag.call_body.reply.accept_status
- == MSG_ACCEPTED) {
- ret = __socket_read_accepted_reply (this);
- } else {
- ret = __socket_read_denied_reply (this);
- }
-
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- if ((ret == -1)
- || ((ret == 0)
- && (remaining_size == 0)
- && (RPC_LASTFRAG (priv->incoming.fraghdr)))) {
- priv->incoming.frag.call_body.reply.status_state
- = SP_STATE_ACCEPTED_REPLY_INIT;
- }
- break;
- }
-
- return ret;
-}
-
-
-inline int
-__socket_read_simple_reply (rpc_transport_t *this)
-{
- return __socket_read_simple_msg (this);
-}
-
-#define rpc_xid_addr(buf) (buf)
-
-inline int
-__socket_read_reply (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- char *buf = NULL;
- int32_t ret = -1;
- rpc_request_info_t *request_info = NULL;
-
- priv = this->private;
-
- buf = rpc_xid_addr (iobuf_ptr (priv->incoming.iobuf));
-
- request_info = GF_CALLOC (1, sizeof (*request_info), gf_common_mt_rpc_trans_reqinfo_t);
- if (request_info == NULL) {
- gf_log (this->name, GF_LOG_ERROR, "out of memory");
- goto out;
- }
-
- priv->incoming.request_info = request_info;
-
- request_info->xid = ntoh32 (*((uint32_t *) buf));
-
- /* release priv->lock, so as to avoid deadlock b/w conn->lock and
- * priv->lock, since we are doing an upcall here.
- */
- pthread_mutex_unlock (&priv->lock);
- {
- ret = rpc_transport_notify (this, RPC_TRANSPORT_MAP_XID_REQUEST,
- priv->incoming.request_info);
- }
- pthread_mutex_lock (&priv->lock);
-
- if (ret == -1) {
- goto out;
- }
-
- if ((request_info->prognum == GLUSTER3_1_FOP_PROGRAM)
- && (request_info->procnum == GF_FOP_READ)) {
- if (request_info->rsp.rspbuf != NULL) {
- priv->incoming.vectoriob
- = iobuf_ref (request_info->rsp.rspbuf);
- }
-
- ret = __socket_read_vectored_reply (this);
- } else {
- ret = __socket_read_simple_reply (this);
- }
-out:
- return ret;
-}
-
-
-/* returns the number of bytes yet to be read in a fragment */
-inline int
-__socket_read_frag (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int32_t ret = 0;
- char *buf = NULL;
- uint32_t remaining_size = 0;
-
- priv = this->private;
-
- switch (priv->incoming.frag.state) {
- case SP_STATE_NADA:
- __socket_proto_init_pending (priv, RPC_MSGTYPE_SIZE);
-
- priv->incoming.frag.state = SP_STATE_READING_MSGTYPE;
-
- /* fall through */
-
- case SP_STATE_READING_MSGTYPE:
- __socket_proto_read (priv, ret);
-
- priv->incoming.frag.state = SP_STATE_READ_MSGTYPE;
- /* fall through */
-
- case SP_STATE_READ_MSGTYPE:
- buf = rpc_msgtype_addr (iobuf_ptr (priv->incoming.iobuf));
- priv->incoming.msg_type = ntoh32 (*((uint32_t *)buf));
-
- if (priv->incoming.msg_type == CALL) {
- ret = __socket_read_request (this);
- } else if (priv->incoming.msg_type == REPLY) {
- ret = __socket_read_reply (this);
- } else {
- gf_log ("rpc", GF_LOG_ERROR,
- "wrong MSG-TYPE (%d) received",
- priv->incoming.msg_type);
- ret = -1;
- }
-
- remaining_size = RPC_FRAGSIZE (priv->incoming.fraghdr)
- - priv->incoming.frag.bytes_read;
-
- if ((ret == -1)
- || ((ret == 0)
- && (remaining_size == 0)
- && (RPC_LASTFRAG (priv->incoming.fraghdr)))) {
- priv->incoming.frag.state = SP_STATE_NADA;
- }
-
- break;
- }
-
- return ret;
-}
-
-
-inline
-void __socket_reset_priv (socket_private_t *priv)
-{
- if (priv->incoming.iobuf) {
- iobuf_unref (priv->incoming.iobuf);
- priv->incoming.iobuf = NULL;
- }
-
- if (priv->incoming.vectoriob) {
- iobuf_unref (priv->incoming.vectoriob);
- priv->incoming.vectoriob = NULL;
- }
-}
-
-
-int
-__socket_proto_state_machine (rpc_transport_t *this,
- rpc_transport_pollin_t **pollin)
-{
- int ret = -1;
- socket_private_t *priv = NULL;
- struct iobuf *iobuf = NULL;
-
- priv = this->private;
- while (priv->incoming.record_state != SP_STATE_COMPLETE) {
- switch (priv->incoming.record_state) {
-
- case SP_STATE_NADA:
- iobuf = iobuf_get (this->ctx->iobuf_pool);
- if (!iobuf) {
- gf_log (this->name, GF_LOG_ERROR,
- "unable to allocate IO buffer "
- "for peer %s",
- this->peerinfo.identifier);
- ret = -ENOMEM;
- goto out;
- }
-
- priv->incoming.iobuf = iobuf;
- priv->incoming.iobuf_size = 0;
- priv->incoming.vectoriob_size = 0;
-
- priv->incoming.pending_vector = priv->incoming.vector;
- priv->incoming.pending_vector->iov_base =
- &priv->incoming.fraghdr;
-
- priv->incoming.frag.fragcurrent = iobuf_ptr (iobuf);
- priv->incoming.pending_vector->iov_len =
- sizeof (priv->incoming.fraghdr);
-
- priv->incoming.record_state = SP_STATE_READING_FRAGHDR;
-
- /* fall through */
-
- case SP_STATE_READING_FRAGHDR:
- ret = __socket_readv (this,
- priv->incoming.pending_vector, 1,
- &priv->incoming.pending_vector,
- &priv->incoming.pending_count,
- NULL);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_TRACE,
- "reading from socket failed. Error (%s), "
- "peer (%s)", strerror (errno),
- this->peerinfo.identifier);
- goto out;
- }
-
- if (ret > 0) {
- gf_log (this->name, GF_LOG_TRACE, "partial "
- "fragment header read");
- goto out;
- }
-
- if (ret == 0) {
- priv->incoming.record_state =
- SP_STATE_READ_FRAGHDR;
- }
- /* fall through */
-
- case SP_STATE_READ_FRAGHDR:
-
- priv->incoming.fraghdr = ntoh32 (priv->incoming.fraghdr);
- priv->incoming.record_state = SP_STATE_READING_FRAG;
- priv->incoming.total_bytes_read
- += RPC_FRAGSIZE(priv->incoming.fraghdr);
- /* fall through */
-
- case SP_STATE_READING_FRAG:
- ret = __socket_read_frag (this);
-
- if ((ret == -1)
- || (priv->incoming.frag.bytes_read !=
- RPC_FRAGSIZE (priv->incoming.fraghdr))) {
- goto out;
- }
-
- priv->incoming.frag.bytes_read = 0;
-
- if (!RPC_LASTFRAG (priv->incoming.fraghdr)) {
- priv->incoming.record_state =
- SP_STATE_READING_FRAGHDR;
- break;
- }
-
- /* we've read the entire rpc record, notify the
- * upper layers.
- */
- if (pollin != NULL) {
- priv->incoming.iobuf_size
- = priv->incoming.total_bytes_read
- - priv->incoming.vectoriob_size;
-
- *pollin = rpc_transport_pollin_alloc (this,
- priv->incoming.iobuf,
- priv->incoming.iobuf_size,
- priv->incoming.vectoriob,
- priv->incoming.vectoriob_size,
- priv->incoming.request_info);
- if (*pollin == NULL) {
- ret = -1;
- goto out;
- }
-
- priv->incoming.request_info = NULL;
- }
- priv->incoming.record_state = SP_STATE_COMPLETE;
- break;
-
- case SP_STATE_COMPLETE:
- /* control should not reach here */
- gf_log (this->name, GF_LOG_DEBUG, "control reached to "
- "SP_STATE_COMPLETE, which should not have "
- "happened");
- break;
- }
- }
-
- if (priv->incoming.record_state == SP_STATE_COMPLETE) {
- priv->incoming.record_state = SP_STATE_NADA;
- __socket_reset_priv (priv);
- }
-
-out:
- if ((ret == -1) && (errno == EAGAIN)) {
- ret = 0;
- }
- return ret;
-}
-
-
-int
-socket_proto_state_machine (rpc_transport_t *this,
- rpc_transport_pollin_t **pollin)
-{
- socket_private_t *priv = NULL;
- int ret = 0;
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->lock);
- {
- ret = __socket_proto_state_machine (this, pollin);
- }
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-
-
-int
-socket_event_poll_in (rpc_transport_t *this)
-{
- int ret = -1;
- rpc_transport_pollin_t *pollin = NULL;
-
- ret = socket_proto_state_machine (this, &pollin);
-
- if (pollin != NULL) {
- ret = rpc_transport_notify (this, RPC_TRANSPORT_MSG_RECEIVED,
- pollin);
-
- rpc_transport_pollin_destroy (pollin);
- }
-
- return ret;
-}
-
-
-int
-socket_connect_finish (rpc_transport_t *this)
-{
- int ret = -1;
- socket_private_t *priv = NULL;
- rpc_transport_event_t event = 0;
- char notify_rpc = 0;
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->connected)
- goto unlock;
-
- ret = __socket_connect_finish (priv->sock);
-
- if (ret == -1 && errno == EINPROGRESS)
- ret = 1;
-
- if (ret == -1 && errno != EINPROGRESS) {
- if (!priv->connect_finish_log) {
- gf_log (this->name, GF_LOG_ERROR,
- "connection to %s failed (%s)",
- this->peerinfo.identifier,
- strerror (errno));
- priv->connect_finish_log = 1;
- }
- __socket_disconnect (this);
- notify_rpc = 1;
- event = RPC_TRANSPORT_DISCONNECT;
- goto unlock;
- }
-
- if (ret == 0) {
- notify_rpc = 1;
-
- this->myinfo.sockaddr_len =
- sizeof (this->myinfo.sockaddr);
-
- ret = getsockname (priv->sock,
- SA (&this->myinfo.sockaddr),
- &this->myinfo.sockaddr_len);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "getsockname on (%d) failed (%s)",
- priv->sock, strerror (errno));
- __socket_disconnect (this);
- event = GF_EVENT_POLLERR;
- goto unlock;
- }
-
- priv->connected = 1;
- priv->connect_finish_log = 0;
- event = RPC_TRANSPORT_CONNECT;
- get_transport_identifiers (this);
- }
- }
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
- if (notify_rpc) {
- rpc_transport_notify (this, event, this);
- }
-
- return 0;
-}
-
-
-/* reads rpc_requests during pollin */
-int
-socket_event_handler (int fd, int idx, void *data,
- int poll_in, int poll_out, int poll_err)
-{
- rpc_transport_t *this = NULL;
- socket_private_t *priv = NULL;
- int ret = 0;
-
- this = data;
- priv = this->private;
-
- pthread_mutex_lock (&priv->lock);
- {
- priv->idx = idx;
- }
- pthread_mutex_unlock (&priv->lock);
-
- if (!priv->connected) {
- ret = socket_connect_finish (this);
- }
-
- if (!ret && poll_out) {
- ret = socket_event_poll_out (this);
- }
-
- if (!ret && poll_in) {
- ret = socket_event_poll_in (this);
- }
-
- if ((ret < 0) || poll_err) {
- gf_log ("transport", GF_LOG_TRACE, "disconnecting now");
- socket_event_poll_err (this);
- rpc_transport_unref (this);
- }
-
- return 0;
-}
-
-
-int
-socket_server_event_handler (int fd, int idx, void *data,
- int poll_in, int poll_out, int poll_err)
-{
- rpc_transport_t *this = NULL;
- socket_private_t *priv = NULL;
- int ret = 0;
- int new_sock = -1;
- rpc_transport_t *new_trans = NULL;
- struct sockaddr_storage new_sockaddr = {0, };
- socklen_t addrlen = sizeof (new_sockaddr);
- socket_private_t *new_priv = NULL;
- glusterfs_ctx_t *ctx = NULL;
-
- this = data;
- priv = this->private;
- ctx = this->ctx;
-
- pthread_mutex_lock (&priv->lock);
- {
- priv->idx = idx;
-
- if (poll_in) {
- new_sock = accept (priv->sock, SA (&new_sockaddr),
- &addrlen);
-
- if (new_sock == -1)
- goto unlock;
-
- if (!priv->bio) {
- ret = __socket_nonblock (new_sock);
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "NBIO on %d failed (%s)",
- new_sock, strerror (errno));
-
- close (new_sock);
- goto unlock;
- }
- }
-
- if (priv->nodelay) {
- ret = __socket_nodelay (new_sock);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "setsockopt() failed for "
- "NODELAY (%s)",
- strerror (errno));
- }
- }
-
- new_trans = GF_CALLOC (1, sizeof (*new_trans),
- gf_common_mt_rpc_trans_t);
- new_trans->fini = this->fini;
- new_trans->name = gf_strdup (this->name);
-
- memcpy (&new_trans->peerinfo.sockaddr, &new_sockaddr,
- addrlen);
- new_trans->peerinfo.sockaddr_len = addrlen;
-
- new_trans->myinfo.sockaddr_len =
- sizeof (new_trans->myinfo.sockaddr);
-
- ret = getsockname (new_sock,
- SA (&new_trans->myinfo.sockaddr),
- &new_trans->myinfo.sockaddr_len);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "getsockname on %d failed (%s)",
- new_sock, strerror (errno));
- close (new_sock);
- goto unlock;
- }
-
- get_transport_identifiers (new_trans);
- socket_init (new_trans);
- new_trans->ops = this->ops;
- new_trans->init = this->init;
- new_trans->fini = this->fini;
- new_trans->ctx = ctx;
- new_trans->mydata = this->mydata;
- new_trans->notify = this->notify;
- new_priv = new_trans->private;
-
- pthread_mutex_lock (&new_priv->lock);
- {
- new_priv->sock = new_sock;
- new_priv->connected = 1;
- rpc_transport_ref (new_trans);
-
- new_priv->idx =
- event_register (ctx->event_pool,
- new_sock,
- socket_event_handler,
- new_trans, 1, 0);
-
- if (new_priv->idx == -1)
- ret = -1;
- }
- pthread_mutex_unlock (&new_priv->lock);
- ret = rpc_transport_notify (this, RPC_TRANSPORT_ACCEPT, new_trans);
- }
- }
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-
-
-int
-socket_disconnect (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->lock);
- {
- ret = __socket_disconnect (this);
- }
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-
-
-int
-socket_connect (rpc_transport_t *this)
-{
- int ret = -1;
- int sock = -1;
- socket_private_t *priv = NULL;
- struct sockaddr_storage sockaddr = {0, };
- socklen_t sockaddr_len = 0;
- glusterfs_ctx_t *ctx = NULL;
- sa_family_t sa_family = {0, };
-
- priv = this->private;
- ctx = this->ctx;
-
- if (!priv) {
- gf_log (this->name, GF_LOG_DEBUG,
- "connect() called on uninitialized transport");
- goto err;
- }
-
- pthread_mutex_lock (&priv->lock);
- {
- sock = priv->sock;
- }
- pthread_mutex_unlock (&priv->lock);
-
- if (sock != -1) {
- gf_log (this->name, GF_LOG_TRACE,
- "connect () called on transport already connected");
- ret = 0;
- goto err;
- }
-
- ret = socket_client_get_remote_sockaddr (this, SA (&sockaddr),
- &sockaddr_len, &sa_family);
- if (ret == -1) {
- /* logged inside client_get_remote_sockaddr */
- goto err;
- }
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->sock != -1) {
- gf_log (this->name, GF_LOG_TRACE,
- "connect() -- already connected");
- goto unlock;
- }
-
- memcpy (&this->peerinfo.sockaddr, &sockaddr, sockaddr_len);
- this->peerinfo.sockaddr_len = sockaddr_len;
-
- priv->sock = socket (sa_family, SOCK_STREAM, 0);
- if (priv->sock == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "socket creation failed (%s)",
- strerror (errno));
- goto unlock;
- }
-
- /* Cant help if setting socket options fails. We can continue
- * working nonetheless.
- */
- if (setsockopt (priv->sock, SOL_SOCKET, SO_RCVBUF,
- &priv->windowsize,
- sizeof (priv->windowsize)) < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "setting receive window size failed: %d: %d: "
- "%s", priv->sock, priv->windowsize,
- strerror (errno));
- }
-
- if (setsockopt (priv->sock, SOL_SOCKET, SO_SNDBUF,
- &priv->windowsize,
- sizeof (priv->windowsize)) < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "setting send window size failed: %d: %d: "
- "%s", priv->sock, priv->windowsize,
- strerror (errno));
- }
-
-
- if (priv->nodelay && priv->lowlat) {
- ret = __socket_nodelay (priv->sock);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "setsockopt() failed for NODELAY (%s)",
- strerror (errno));
- }
- }
-
- if (!priv->bio) {
- ret = __socket_nonblock (priv->sock);
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "NBIO on %d failed (%s)",
- priv->sock, strerror (errno));
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
- }
-
- SA (&this->myinfo.sockaddr)->sa_family =
- SA (&this->peerinfo.sockaddr)->sa_family;
-
- ret = client_bind (this, SA (&this->myinfo.sockaddr),
- &this->myinfo.sockaddr_len, priv->sock);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_WARNING,
- "client bind failed: %s", strerror (errno));
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
-
- ret = connect (priv->sock, SA (&this->peerinfo.sockaddr),
- this->peerinfo.sockaddr_len);
-
- if (ret == -1 && errno != EINPROGRESS) {
- gf_log (this->name, GF_LOG_ERROR,
- "connection attempt failed (%s)",
- strerror (errno));
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
-
- priv->connected = 0;
-
- rpc_transport_ref (this);
-
- priv->idx = event_register (ctx->event_pool, priv->sock,
- socket_event_handler, this, 1, 1);
- if (priv->idx == -1)
- ret = -1;
- }
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
-err:
- return ret;
-}
-
-
-int
-socket_listen (rpc_transport_t *this)
-{
- socket_private_t * priv = NULL;
- int ret = -1;
- int sock = -1;
- struct sockaddr_storage sockaddr;
- socklen_t sockaddr_len;
- peer_info_t *myinfo = NULL;
- glusterfs_ctx_t *ctx = NULL;
- sa_family_t sa_family = {0, };
-
- priv = this->private;
- myinfo = &this->myinfo;
- ctx = this->ctx;
-
- pthread_mutex_lock (&priv->lock);
- {
- sock = priv->sock;
- }
- pthread_mutex_unlock (&priv->lock);
-
- if (sock != -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "alreading listening");
- return ret;
- }
-
- ret = socket_server_get_local_sockaddr (this, SA (&sockaddr),
- &sockaddr_len, &sa_family);
- if (ret == -1) {
- return ret;
- }
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->sock != -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "already listening");
- goto unlock;
- }
-
- memcpy (&myinfo->sockaddr, &sockaddr, sockaddr_len);
- myinfo->sockaddr_len = sockaddr_len;
-
- priv->sock = socket (sa_family, SOCK_STREAM, 0);
-
- if (priv->sock == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "socket creation failed (%s)",
- strerror (errno));
- goto unlock;
- }
-
- /* Cant help if setting socket options fails. We can continue
- * working nonetheless.
- */
- if (setsockopt (priv->sock, SOL_SOCKET, SO_RCVBUF,
- &priv->windowsize,
- sizeof (priv->windowsize)) < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "setting receive window size failed: %d: %d: "
- "%s", priv->sock, priv->windowsize,
- strerror (errno));
- }
-
- if (setsockopt (priv->sock, SOL_SOCKET, SO_SNDBUF,
- &priv->windowsize,
- sizeof (priv->windowsize)) < 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "setting send window size failed: %d: %d: "
- "%s", priv->sock, priv->windowsize,
- strerror (errno));
- }
-
- if (priv->nodelay) {
- ret = __socket_nodelay (priv->sock);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "setsockopt() failed for NODELAY (%s)",
- strerror (errno));
- }
- }
-
- if (!priv->bio) {
- ret = __socket_nonblock (priv->sock);
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "NBIO on %d failed (%s)",
- priv->sock, strerror (errno));
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
- }
-
- ret = __socket_server_bind (this);
-
- if (ret == -1) {
- /* logged inside __socket_server_bind() */
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
-
- ret = listen (priv->sock, 10);
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "could not set socket %d to listen mode (%s)",
- priv->sock, strerror (errno));
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
-
- rpc_transport_ref (this);
-
- priv->idx = event_register (ctx->event_pool, priv->sock,
- socket_server_event_handler,
- this, 1, 0);
-
- if (priv->idx == -1) {
- gf_log (this->name, GF_LOG_DEBUG,
- "could not register socket %d with events",
- priv->sock);
- ret = -1;
- close (priv->sock);
- priv->sock = -1;
- goto unlock;
- }
- }
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-
-
-/* TODO: implement per transfer limit */
-#if 0
-int
-socket_submit (rpc_transport_t *this, char *buf, int len,
- struct iovec *vector, int count,
- struct iobref *iobref)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
- char need_poll_out = 0;
- char need_append = 1;
- struct ioq *entry = NULL;
- glusterfs_ctx_t *ctx = NULL;
-
- priv = this->private;
- ctx = this->ctx;
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->connected != 1) {
- if (!priv->submit_log && !priv->connect_finish_log) {
- gf_log (this->name, GF_LOG_DEBUG,
- "not connected (priv->connected = %d)",
- priv->connected);
- priv->submit_log = 1;
- }
- goto unlock;
- }
-
- priv->submit_log = 0;
- entry = __socket_ioq_new (this, buf, len, vector, count, iobref);
- if (!entry)
- goto unlock;
-
- if (list_empty (&priv->ioq)) {
- ret = __socket_ioq_churn_entry (this, entry);
-
- if (ret == 0)
- need_append = 0;
-
- if (ret > 0)
- need_poll_out = 1;
- }
-
- if (need_append) {
- list_add_tail (&entry->list, &priv->ioq);
- ret = 0;
- }
-
- if (need_poll_out) {
- /* first entry to wait. continue writing on POLLOUT */
- priv->idx = event_select_on (ctx->event_pool,
- priv->sock,
- priv->idx, -1, 1);
- }
- }
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-#endif
-
-
-int32_t
-socket_submit_request (rpc_transport_t *this, rpc_transport_req_t *req)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
- char need_poll_out = 0;
- char need_append = 1;
- struct ioq *entry = NULL;
- glusterfs_ctx_t *ctx = NULL;
-
- priv = this->private;
- ctx = this->ctx;
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->connected != 1) {
- if (!priv->submit_log && !priv->connect_finish_log) {
- gf_log (this->name, GF_LOG_DEBUG,
- "not connected (priv->connected = %d)",
- priv->connected);
- priv->submit_log = 1;
- }
- goto unlock;
- }
-
- priv->submit_log = 0;
- entry = __socket_ioq_new (this, &req->msg);
- if (!entry)
- goto unlock;
-
- if (list_empty (&priv->ioq)) {
- ret = __socket_ioq_churn_entry (this, entry);
-
- if (ret == 0)
- need_append = 0;
-
- if (ret > 0)
- need_poll_out = 1;
- }
-
- if (need_append) {
- list_add_tail (&entry->list, &priv->ioq);
- ret = 0;
- }
-
- if (need_poll_out) {
- /* first entry to wait. continue writing on POLLOUT */
- priv->idx = event_select_on (ctx->event_pool,
- priv->sock,
- priv->idx, -1, 1);
- }
- }
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-
-
-int32_t
-socket_submit_reply (rpc_transport_t *this, rpc_transport_reply_t *reply)
-{
- socket_private_t *priv = NULL;
- int ret = -1;
- char need_poll_out = 0;
- char need_append = 1;
- struct ioq *entry = NULL;
- glusterfs_ctx_t *ctx = NULL;
-
- priv = this->private;
- ctx = this->ctx;
-
- pthread_mutex_lock (&priv->lock);
- {
- if (priv->connected != 1) {
- if (!priv->submit_log && !priv->connect_finish_log) {
- gf_log (this->name, GF_LOG_DEBUG,
- "not connected (priv->connected = %d)",
- priv->connected);
- priv->submit_log = 1;
- }
- goto unlock;
- }
- priv->submit_log = 0;
- entry = __socket_ioq_new (this, &reply->msg);
- if (!entry)
- goto unlock;
- if (list_empty (&priv->ioq)) {
- ret = __socket_ioq_churn_entry (this, entry);
-
- if (ret == 0)
- need_append = 0;
-
- if (ret > 0)
- need_poll_out = 1;
- }
-
- if (need_append) {
- list_add_tail (&entry->list, &priv->ioq);
- ret = 0;
- }
-
- if (need_poll_out) {
- /* first entry to wait. continue writing on POLLOUT */
- priv->idx = event_select_on (ctx->event_pool,
- priv->sock,
- priv->idx, -1, 1);
- }
- }
-
-unlock:
- pthread_mutex_unlock (&priv->lock);
-
- return ret;
-}
-
-
-int32_t
-socket_getpeername (rpc_transport_t *this, char *hostname, int hostlen)
-{
- int32_t ret = -1;
-
- if ((this == NULL) || (hostname == NULL)) {
- goto out;
- }
-
- if (hostlen < (strlen (this->peerinfo.identifier) + 1)) {
- goto out;
- }
-
- strcpy (hostname, this->peerinfo.identifier);
- ret = 0;
-out:
- return ret;
-}
-
-
-int32_t
-socket_getpeeraddr (rpc_transport_t *this, char *peeraddr, int addrlen,
- struct sockaddr *sa, socklen_t salen)
-{
- int32_t ret = -1;
-
- if ((this == NULL) || (sa == NULL)) {
- goto out;
- }
-
- *sa = *((struct sockaddr *)&this->peerinfo.sockaddr);
-
- if (peeraddr != NULL) {
- ret = socket_getpeername (this, peeraddr, addrlen);
- }
-
-out:
- return ret;
-}
-
-
-int32_t
-socket_getmyname (rpc_transport_t *this, char *hostname, int hostlen)
-{
- int32_t ret = -1;
-
- if ((this == NULL) || (hostname == NULL)) {
- goto out;
- }
-
- if (hostlen < (strlen (this->myinfo.identifier) + 1)) {
- goto out;
- }
-
- strcpy (hostname, this->myinfo.identifier);
- ret = 0;
-out:
- return ret;
-}
-
-
-int32_t
-socket_getmyaddr (rpc_transport_t *this, char *myaddr, int addrlen,
- struct sockaddr *sa, socklen_t salen)
-{
- int32_t ret = -1;
-
- if ((this == NULL) || (sa == NULL)) {
- goto out;
- }
-
- *sa = *((struct sockaddr *)&this->myinfo.sockaddr);
-
- if (myaddr != NULL) {
- ret = socket_getmyname (this, myaddr, addrlen);
- }
-
-out:
- return ret;
-}
-
-
-struct rpc_transport_ops tops = {
- .listen = socket_listen,
- .connect = socket_connect,
- .disconnect = socket_disconnect,
- .submit_request = socket_submit_request,
- .submit_reply = socket_submit_reply,
- .get_peername = socket_getpeername,
- .get_peeraddr = socket_getpeeraddr,
- .get_myname = socket_getmyname,
- .get_myaddr = socket_getmyaddr
-};
-
-
-int
-socket_init (rpc_transport_t *this)
-{
- socket_private_t *priv = NULL;
- gf_boolean_t tmp_bool = 0;
- uint64_t windowsize = GF_DEFAULT_SOCKET_WINDOW_SIZE;
- char *optstr = NULL;
-
- if (this->private) {
- gf_log (this->name, GF_LOG_DEBUG,
- "double init attempted");
- return -1;
- }
-
- priv = GF_CALLOC (1, sizeof (*priv), gf_common_mt_socket_private_t);
- if (!priv) {
- gf_log (this->name, GF_LOG_ERROR,
- "calloc (1, %"GF_PRI_SIZET") returned NULL",
- sizeof (*priv));
- return -1;
- }
-
- pthread_mutex_init (&priv->lock, NULL);
-
- priv->sock = -1;
- priv->idx = -1;
- priv->connected = -1;
-
- INIT_LIST_HEAD (&priv->ioq);
-
- if (dict_get (this->options, "non-blocking-io")) {
- optstr = data_to_str (dict_get (this->options,
- "non-blocking-io"));
-
- if (gf_string2boolean (optstr, &tmp_bool) == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "'non-blocking-io' takes only boolean options,"
- " not taking any action");
- tmp_bool = 1;
- }
- priv->bio = 0;
- if (!tmp_bool) {
- priv->bio = 1;
- gf_log (this->name, GF_LOG_WARNING,
- "disabling non-blocking IO");
- }
- }
-
- optstr = NULL;
-
- // By default, we enable NODELAY
- priv->nodelay = 1;
- if (dict_get (this->options, "transport.socket.nodelay")) {
- optstr = data_to_str (dict_get (this->options,
- "transport.socket.nodelay"));
-
- if (gf_string2boolean (optstr, &tmp_bool) == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "'transport.socket.nodelay' takes only "
- "boolean options, not taking any action");
- tmp_bool = 1;
- }
- if (!tmp_bool) {
- priv->nodelay = 0;
- gf_log (this->name, GF_LOG_DEBUG,
- "disabling nodelay");
- }
- }
-
-
- optstr = NULL;
- if (dict_get_str (this->options, "transport.window-size",
- &optstr) == 0) {
- if (gf_string2bytesize (optstr, &windowsize) != 0) {
- gf_log (this->name, GF_LOG_ERROR,
- "invalid number format: %s", optstr);
- return -1;
- }
- }
-
- optstr = NULL;
-
- if (dict_get_str (this->options, "transport.socket.lowlat",
- &optstr) == 0) {
- priv->lowlat = 1;
- }
-
- priv->windowsize = (int)windowsize;
- this->private = priv;
-
- return 0;
-}
-
-
-void
-fini (rpc_transport_t *this)
-{
- socket_private_t *priv = this->private;
-
- gf_log (this->name, GF_LOG_TRACE,
- "transport %p destroyed", this);
-
- pthread_mutex_destroy (&priv->lock);
-
- GF_FREE (this->name);
- GF_FREE (priv);
-}
-
-
-int32_t
-init (rpc_transport_t *this)
-{
- int ret = -1;
-
- ret = socket_init (this);
-
- if (ret == -1) {
- gf_log (this->name, GF_LOG_DEBUG, "socket_init() failed");
- }
-
- return ret;
-}
-
-struct volume_options options[] = {
- { .key = {"remote-port",
- "transport.remote-port",
- "transport.socket.remote-port"},
- .type = GF_OPTION_TYPE_INT
- },
- { .key = {"transport.socket.listen-port", "listen-port"},
- .type = GF_OPTION_TYPE_INT
- },
- { .key = {"transport.socket.bind-address", "bind-address" },
- .type = GF_OPTION_TYPE_INTERNET_ADDRESS
- },
- { .key = {"transport.socket.connect-path", "connect-path"},
- .type = GF_OPTION_TYPE_ANY
- },
- { .key = {"transport.socket.bind-path", "bind-path"},
- .type = GF_OPTION_TYPE_ANY
- },
- { .key = {"transport.socket.listen-path", "listen-path"},
- .type = GF_OPTION_TYPE_ANY
- },
- { .key = { "transport.address-family",
- "address-family" },
- .value = {"inet", "inet6", "inet/inet6", "inet6/inet",
- "unix", "inet-sdp" },
- .type = GF_OPTION_TYPE_STR
- },
-
- { .key = {"non-blocking-io"},
- .type = GF_OPTION_TYPE_BOOL
- },
- { .key = {"transport.window-size"},
- .type = GF_OPTION_TYPE_SIZET,
- .min = GF_MIN_SOCKET_WINDOW_SIZE,
- .max = GF_MAX_SOCKET_WINDOW_SIZE,
- },
- { .key = {"transport.socket.nodelay"},
- .type = GF_OPTION_TYPE_BOOL
- },
- { .key = {"transport.socket.lowlat"},
- .type = GF_OPTION_TYPE_BOOL
- },
- { .key = {NULL} }
-};
generated by cgit (git 2.34.1) at 2024-05-13 10:33:04 +0000