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authorVijay Bellur <vijay@gluster.com>2010-06-28 02:49:46 +0000
committerAnand V. Avati <avati@dev.gluster.com>2010-06-28 22:20:45 -0700
commit0da2a6d08cc8fc2315742d010c8a8cab38ef75bb (patch)
treeeed93284ad3826ac7401c9f9540b6afe9a68c2cc /rpc/rpc-transport
parent2c5c3cedc096c36ef9d004ffa0cdb5324d2915e6 (diff)
Move rpc to top-level
Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 875 (Implement a new protocol to provide proper backward/forward compatibility) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=875
Diffstat (limited to 'rpc/rpc-transport')
-rw-r--r--rpc/rpc-transport/Makefile.am1
-rw-r--r--rpc/rpc-transport/socket/Makefile.am1
-rw-r--r--rpc/rpc-transport/socket/src/Makefile.am15
-rw-r--r--rpc/rpc-transport/socket/src/name.c737
-rw-r--r--rpc/rpc-transport/socket/src/name.h44
-rw-r--r--rpc/rpc-transport/socket/src/socket.c2308
-rw-r--r--rpc/rpc-transport/socket/src/socket.h190
7 files changed, 3296 insertions, 0 deletions
diff --git a/rpc/rpc-transport/Makefile.am b/rpc/rpc-transport/Makefile.am
new file mode 100644
index 000000000..7dd9f026c
--- /dev/null
+++ b/rpc/rpc-transport/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = socket
diff --git a/rpc/rpc-transport/socket/Makefile.am b/rpc/rpc-transport/socket/Makefile.am
new file mode 100644
index 000000000..f963effea
--- /dev/null
+++ b/rpc/rpc-transport/socket/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = src \ No newline at end of file
diff --git a/rpc/rpc-transport/socket/src/Makefile.am b/rpc/rpc-transport/socket/src/Makefile.am
new file mode 100644
index 000000000..46a3e1237
--- /dev/null
+++ b/rpc/rpc-transport/socket/src/Makefile.am
@@ -0,0 +1,15 @@
+noinst_HEADERS = socket.h name.h
+
+rpctransport_LTLIBRARIES = socket.la
+rpctransportdir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/rpc-transport
+
+socket_la_LDFLAGS = -module -avoidversion
+
+socket_la_SOURCES = socket.c name.c
+socket_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
+
+AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS)\
+ -I$(top_srcdir)/libglusterfs/src -I$(top_srcdir)/rpc/rpc-lib/src/ \
+ -I$(top_srcdir)/xlators/protocol/lib/src/ -shared -nostartfiles $(GF_CFLAGS)
+
+CLEANFILES = *~
diff --git a/rpc/rpc-transport/socket/src/name.c b/rpc/rpc-transport/socket/src/name.c
new file mode 100644
index 000000000..763fa3dd0
--- /dev/null
+++ b/rpc/rpc-transport/socket/src/name.c
@@ -0,0 +1,737 @@
+/*
+ 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/>.
+*/
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <errno.h>
+#include <netdb.h>
+#include <string.h>
+
+#ifdef CLIENT_PORT_CEILING
+#undef CLIENT_PORT_CEILING
+#endif
+
+#define CLIENT_PORT_CEILING 1024
+
+#ifndef AF_INET_SDP
+#define AF_INET_SDP 27
+#endif
+
+#include "rpc-transport.h"
+#include "socket.h"
+
+int32_t
+gf_resolve_ip6 (const char *hostname,
+ uint16_t port,
+ int family,
+ void **dnscache,
+ struct addrinfo **addr_info);
+
+static int32_t
+af_inet_bind_to_port_lt_ceiling (int fd, struct sockaddr *sockaddr,
+ socklen_t sockaddr_len, int ceiling)
+{
+ int32_t ret = -1;
+ /* struct sockaddr_in sin = {0, }; */
+ uint16_t port = ceiling - 1;
+
+ while (port)
+ {
+ switch (sockaddr->sa_family)
+ {
+ case AF_INET6:
+ ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons (port);
+ break;
+
+ case AF_INET_SDP:
+ case AF_INET:
+ ((struct sockaddr_in *)sockaddr)->sin_port = htons (port);
+ break;
+ }
+
+ ret = bind (fd, sockaddr, sockaddr_len);
+
+ if (ret == 0)
+ break;
+
+ if (ret == -1 && errno == EACCES)
+ break;
+
+ port--;
+ }
+
+ return ret;
+}
+
+static int32_t
+af_unix_client_bind (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t sockaddr_len,
+ int sock)
+{
+ data_t *path_data = NULL;
+ struct sockaddr_un *addr = NULL;
+ int32_t ret = 0;
+
+ path_data = dict_get (this->options, "transport.socket.bind-path");
+ if (path_data) {
+ char *path = data_to_str (path_data);
+ if (!path || strlen (path) > UNIX_PATH_MAX) {
+ gf_log (this->name, GF_LOG_TRACE,
+ "bind-path not specfied for unix socket, "
+ "letting connect to assign default value");
+ goto err;
+ }
+
+ addr = (struct sockaddr_un *) sockaddr;
+ strcpy (addr->sun_path, path);
+ ret = bind (sock, (struct sockaddr *)addr, sockaddr_len);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "cannot bind to unix-domain socket %d (%s)",
+ sock, strerror (errno));
+ goto err;
+ }
+ } else {
+ gf_log (this->name, GF_LOG_TRACE,
+ "bind-path not specfied for unix socket, "
+ "letting connect to assign default value");
+ }
+
+err:
+ return ret;
+}
+
+int32_t
+client_fill_address_family (rpc_transport_t *this, sa_family_t *sa_family)
+{
+ data_t *address_family_data = NULL;
+ int32_t ret = -1;
+
+ if (sa_family == NULL) {
+ goto out;
+ }
+
+ address_family_data = dict_get (this->options,
+ "transport.address-family");
+ if (!address_family_data) {
+ data_t *remote_host_data = NULL, *connect_path_data = NULL;
+ remote_host_data = dict_get (this->options, "remote-host");
+ connect_path_data = dict_get (this->options,
+ "transport.socket.connect-path");
+
+ if (!(remote_host_data || connect_path_data) ||
+ (remote_host_data && connect_path_data)) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "transport.address-family not specified and "
+ "not able to determine the "
+ "same from other options (remote-host:%s and "
+ "transport.unix.connect-path:%s)",
+ data_to_str (remote_host_data),
+ data_to_str (connect_path_data));
+ goto out;
+ }
+
+ if (remote_host_data) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "address-family not specified, guessing it "
+ "to be inet/inet6");
+ *sa_family = AF_UNSPEC;
+ } else {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "address-family not specified, guessing it "
+ "to be unix");
+ *sa_family = AF_UNIX;
+ }
+
+ } else {
+ char *address_family = data_to_str (address_family_data);
+ if (!strcasecmp (address_family, "unix")) {
+ *sa_family = AF_UNIX;
+ } else if (!strcasecmp (address_family, "inet")) {
+ *sa_family = AF_INET;
+ } else if (!strcasecmp (address_family, "inet6")) {
+ *sa_family = AF_INET6;
+ } else if (!strcasecmp (address_family, "inet-sdp")) {
+ *sa_family = AF_INET_SDP;
+ } else if (!strcasecmp (address_family, "inet/inet6")
+ || !strcasecmp (address_family, "inet6/inet")) {
+ *sa_family = AF_UNSPEC;
+ } else {
+ gf_log (this->name, GF_LOG_ERROR,
+ "unknown address-family (%s) specified",
+ address_family);
+ goto out;
+ }
+ }
+
+ ret = 0;
+
+out:
+ return ret;
+}
+
+static int32_t
+af_inet_client_get_remote_sockaddr (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t *sockaddr_len)
+{
+ dict_t *options = this->options;
+ data_t *remote_host_data = NULL;
+ data_t *remote_port_data = NULL;
+ char *remote_host = NULL;
+ uint16_t remote_port = 0;
+ struct addrinfo *addr_info = NULL;
+ int32_t ret = 0;
+
+ remote_host_data = dict_get (options, "remote-host");
+ if (remote_host_data == NULL)
+ {
+ gf_log (this->name, GF_LOG_ERROR,
+ "option remote-host missing in volume %s", this->name);
+ ret = -1;
+ goto err;
+ }
+
+ remote_host = data_to_str (remote_host_data);
+ if (remote_host == NULL)
+ {
+ gf_log (this->name, GF_LOG_ERROR,
+ "option remote-host has data NULL in volume %s", this->name);
+ ret = -1;
+ goto err;
+ }
+
+ remote_port_data = dict_get (options, "remote-port");
+ if (remote_port_data == NULL)
+ {
+ gf_log (this->name, GF_LOG_TRACE,
+ "option remote-port missing in volume %s. Defaulting to %d",
+ this->name, GF_DEFAULT_SOCKET_LISTEN_PORT);
+
+ remote_port = GF_DEFAULT_SOCKET_LISTEN_PORT;
+ }
+ else
+ {
+ remote_port = data_to_uint16 (remote_port_data);
+ }
+
+ if (remote_port == (uint16_t)-1)
+ {
+ gf_log (this->name, GF_LOG_ERROR,
+ "option remote-port has invalid port in volume %s",
+ this->name);
+ ret = -1;
+ goto err;
+ }
+
+ /* TODO: gf_resolve is a blocking call. kick in some
+ non blocking dns techniques */
+ ret = gf_resolve_ip6 (remote_host, remote_port,
+ sockaddr->sa_family, &this->dnscache, &addr_info);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "DNS resolution failed on host %s", remote_host);
+ goto err;
+ }
+
+ memcpy (sockaddr, addr_info->ai_addr, addr_info->ai_addrlen);
+ *sockaddr_len = addr_info->ai_addrlen;
+
+err:
+ return ret;
+}
+
+static int32_t
+af_unix_client_get_remote_sockaddr (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t *sockaddr_len)
+{
+ struct sockaddr_un *sockaddr_un = NULL;
+ char *connect_path = NULL;
+ data_t *connect_path_data = NULL;
+ int32_t ret = 0;
+
+ connect_path_data = dict_get (this->options,
+ "transport.socket.connect-path");
+ if (!connect_path_data) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "option transport.unix.connect-path not specified for "
+ "address-family unix");
+ ret = -1;
+ goto err;
+ }
+
+ connect_path = data_to_str (connect_path_data);
+ if (!connect_path) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "transport.unix.connect-path is null-string");
+ ret = -1;
+ goto err;
+ }
+
+ if (strlen (connect_path) > UNIX_PATH_MAX) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "connect-path value length %"GF_PRI_SIZET" > %d octets",
+ strlen (connect_path), UNIX_PATH_MAX);
+ ret = -1;
+ goto err;
+ }
+
+ gf_log (this->name, GF_LOG_TRACE,
+ "using connect-path %s", connect_path);
+ sockaddr_un = (struct sockaddr_un *)sockaddr;
+ strcpy (sockaddr_un->sun_path, connect_path);
+ *sockaddr_len = sizeof (struct sockaddr_un);
+
+err:
+ return ret;
+}
+
+static int32_t
+af_unix_server_get_local_sockaddr (rpc_transport_t *this,
+ struct sockaddr *addr,
+ socklen_t *addr_len)
+{
+ data_t *listen_path_data = NULL;
+ char *listen_path = NULL;
+ int32_t ret = 0;
+ struct sockaddr_un *sunaddr = (struct sockaddr_un *)addr;
+
+
+ listen_path_data = dict_get (this->options,
+ "transport.socket.listen-path");
+ if (!listen_path_data) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "missing option transport.socket.listen-path");
+ ret = -1;
+ goto err;
+ }
+
+ listen_path = data_to_str (listen_path_data);
+
+#ifndef UNIX_PATH_MAX
+#define UNIX_PATH_MAX 108
+#endif
+
+ if (strlen (listen_path) > UNIX_PATH_MAX) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "option transport.unix.listen-path has value length "
+ "%"GF_PRI_SIZET" > %d",
+ strlen (listen_path), UNIX_PATH_MAX);
+ ret = -1;
+ goto err;
+ }
+
+ sunaddr->sun_family = AF_UNIX;
+ strcpy (sunaddr->sun_path, listen_path);
+ *addr_len = sizeof (struct sockaddr_un);
+
+err:
+ return ret;
+}
+
+static int32_t
+af_inet_server_get_local_sockaddr (rpc_transport_t *this,
+ struct sockaddr *addr,
+ socklen_t *addr_len)
+{
+ struct addrinfo hints, *res = 0;
+ data_t *listen_port_data = NULL, *listen_host_data = NULL;
+ uint16_t listen_port = -1;
+ char service[NI_MAXSERV], *listen_host = NULL;
+ dict_t *options = NULL;
+ int32_t ret = 0;
+
+ options = this->options;
+
+ listen_port_data = dict_get (options, "transport.socket.listen-port");
+ listen_host_data = dict_get (options, "transport.socket.bind-address");
+
+ if (listen_port_data)
+ {
+ listen_port = data_to_uint16 (listen_port_data);
+ }
+
+ if (listen_port == (uint16_t) -1)
+ listen_port = GF_DEFAULT_SOCKET_LISTEN_PORT;
+
+
+ if (listen_host_data)
+ {
+ listen_host = data_to_str (listen_host_data);
+ } else {
+ if (addr->sa_family == AF_INET6) {
+ struct sockaddr_in6 *in = (struct sockaddr_in6 *) addr;
+ in->sin6_addr = in6addr_any;
+ in->sin6_port = htons(listen_port);
+ *addr_len = sizeof(struct sockaddr_in6);
+ goto out;
+ } else if (addr->sa_family == AF_INET) {
+ struct sockaddr_in *in = (struct sockaddr_in *) addr;
+ in->sin_addr.s_addr = htonl(INADDR_ANY);
+ in->sin_port = htons(listen_port);
+ *addr_len = sizeof(struct sockaddr_in);
+ goto out;
+ }
+ }
+
+ memset (service, 0, sizeof (service));
+ sprintf (service, "%d", listen_port);
+
+ memset (&hints, 0, sizeof (hints));
+ hints.ai_family = addr->sa_family;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = AI_ADDRCONFIG | AI_PASSIVE;
+
+ ret = getaddrinfo(listen_host, service, &hints, &res);
+ if (ret != 0) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "getaddrinfo failed for host %s, service %s (%s)",
+ listen_host, service, gai_strerror (ret));
+ ret = -1;
+ goto out;
+ }
+
+ memcpy (addr, res->ai_addr, res->ai_addrlen);
+ *addr_len = res->ai_addrlen;
+
+ freeaddrinfo (res);
+
+out:
+ return ret;
+}
+
+int32_t
+client_bind (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t *sockaddr_len,
+ int sock)
+{
+ int ret = 0;
+
+ *sockaddr_len = sizeof (struct sockaddr_in6);
+ switch (sockaddr->sa_family)
+ {
+ case AF_INET_SDP:
+ case AF_INET:
+ *sockaddr_len = sizeof (struct sockaddr_in);
+
+ case AF_INET6:
+ ret = af_inet_bind_to_port_lt_ceiling (sock, sockaddr,
+ *sockaddr_len, CLIENT_PORT_CEILING);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "cannot bind inet socket (%d) to port less than %d (%s)",
+ sock, CLIENT_PORT_CEILING, strerror (errno));
+ ret = 0;
+ }
+ break;
+
+ case AF_UNIX:
+ *sockaddr_len = sizeof (struct sockaddr_un);
+ ret = af_unix_client_bind (this, (struct sockaddr *)sockaddr,
+ *sockaddr_len, sock);
+ break;
+
+ default:
+ gf_log (this->name, GF_LOG_ERROR,
+ "unknown address family %d", sockaddr->sa_family);
+ ret = -1;
+ break;
+ }
+
+ return ret;
+}
+
+int32_t
+socket_client_get_remote_sockaddr (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t *sockaddr_len,
+ sa_family_t *sa_family)
+{
+ int32_t ret = 0;
+
+ if ((sockaddr == NULL) || (sockaddr_len == NULL)
+ || (sa_family == NULL)) {
+ ret = -1;
+ goto err;
+ }
+
+
+ ret = client_fill_address_family (this, &sockaddr->sa_family);
+ if (ret) {
+ ret = -1;
+ goto err;
+ }
+
+ *sa_family = sockaddr->sa_family;
+
+ switch (sockaddr->sa_family)
+ {
+ case AF_INET_SDP:
+ sockaddr->sa_family = AF_INET;
+
+ case AF_INET:
+ case AF_INET6:
+ case AF_UNSPEC:
+ ret = af_inet_client_get_remote_sockaddr (this, sockaddr,
+ sockaddr_len);
+ break;
+
+ case AF_UNIX:
+ ret = af_unix_client_get_remote_sockaddr (this, sockaddr,
+ sockaddr_len);
+ break;
+
+ default:
+ gf_log (this->name, GF_LOG_ERROR,
+ "unknown address-family %d", sockaddr->sa_family);
+ ret = -1;
+ }
+
+ if (*sa_family == AF_UNSPEC) {
+ *sa_family = sockaddr->sa_family;
+ }
+
+err:
+ return ret;
+}
+
+
+int32_t
+server_fill_address_family (rpc_transport_t *this, sa_family_t *sa_family)
+{
+ data_t *address_family_data = NULL;
+ int32_t ret = -1;
+
+ if (sa_family == NULL) {
+ goto out;
+ }
+
+ address_family_data = dict_get (this->options,
+ "transport.address-family");
+ if (address_family_data) {
+ char *address_family = NULL;
+ address_family = data_to_str (address_family_data);
+
+ if (!strcasecmp (address_family, "inet")) {
+ *sa_family = AF_INET;
+ } else if (!strcasecmp (address_family, "inet6")) {
+ *sa_family = AF_INET6;
+ } else if (!strcasecmp (address_family, "inet-sdp")) {
+ *sa_family = AF_INET_SDP;
+ } else if (!strcasecmp (address_family, "unix")) {
+ *sa_family = AF_UNIX;
+ } else if (!strcasecmp (address_family, "inet/inet6")
+ || !strcasecmp (address_family, "inet6/inet")) {
+ *sa_family = AF_UNSPEC;
+ } else {
+ gf_log (this->name, GF_LOG_ERROR,
+ "unknown address family (%s) specified", address_family);
+ goto out;
+ }
+ } else {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "option address-family not specified, defaulting to inet/inet6");
+ *sa_family = AF_UNSPEC;
+ }
+
+ ret = 0;
+out:
+ return ret;
+}
+
+
+int32_t
+socket_server_get_local_sockaddr (rpc_transport_t *this, struct sockaddr *addr,
+ socklen_t *addr_len, sa_family_t *sa_family)
+{
+ int32_t ret = -1;
+
+ if ((addr == NULL) || (addr_len == NULL) || (sa_family == NULL)) {
+ goto err;
+ }
+
+ ret = server_fill_address_family (this, &addr->sa_family);
+ if (ret == -1) {
+ goto err;
+ }
+
+ *sa_family = addr->sa_family;
+
+ switch (addr->sa_family)
+ {
+ case AF_INET_SDP:
+ addr->sa_family = AF_INET;
+
+ case AF_INET:
+ case AF_INET6:
+ case AF_UNSPEC:
+ ret = af_inet_server_get_local_sockaddr (this, addr, addr_len);
+ break;
+
+ case AF_UNIX:
+ ret = af_unix_server_get_local_sockaddr (this, addr, addr_len);
+ break;
+ }
+
+ if (*sa_family == AF_UNSPEC) {
+ *sa_family = addr->sa_family;
+ }
+
+err:
+ return ret;
+}
+
+int32_t
+fill_inet6_inet_identifiers (rpc_transport_t *this, struct sockaddr_storage *addr,
+ int32_t addr_len, char *identifier)
+{
+ int32_t ret = 0, tmpaddr_len = 0;
+ char service[NI_MAXSERV], host[NI_MAXHOST];
+ struct sockaddr_storage tmpaddr;
+
+ memset (&tmpaddr, 0, sizeof (tmpaddr));
+ tmpaddr = *addr;
+ tmpaddr_len = addr_len;
+
+ if (((struct sockaddr *) &tmpaddr)->sa_family == AF_INET6) {
+ int32_t one_to_four, four_to_eight, twelve_to_sixteen;
+ int16_t eight_to_ten, ten_to_twelve;
+
+ one_to_four = four_to_eight = twelve_to_sixteen = 0;
+ eight_to_ten = ten_to_twelve = 0;
+
+ one_to_four = ((struct sockaddr_in6 *) &tmpaddr)->sin6_addr.s6_addr32[0];
+ four_to_eight = ((struct sockaddr_in6 *) &tmpaddr)->sin6_addr.s6_addr32[1];
+#ifdef GF_SOLARIS_HOST_OS
+ eight_to_ten = S6_ADDR16(((struct sockaddr_in6 *) &tmpaddr)->sin6_addr)[4];
+#else
+ eight_to_ten = ((struct sockaddr_in6 *) &tmpaddr)->sin6_addr.s6_addr16[4];
+#endif
+
+#ifdef GF_SOLARIS_HOST_OS
+ ten_to_twelve = S6_ADDR16(((struct sockaddr_in6 *) &tmpaddr)->sin6_addr)[5];
+#else
+ ten_to_twelve = ((struct sockaddr_in6 *) &tmpaddr)->sin6_addr.s6_addr16[5];
+#endif
+
+ twelve_to_sixteen = ((struct sockaddr_in6 *) &tmpaddr)->sin6_addr.s6_addr32[3];
+
+ /* ipv4 mapped ipv6 address has
+ bits 0-80: 0
+ bits 80-96: 0xffff
+ bits 96-128: ipv4 address
+ */
+
+ if (one_to_four == 0 &&
+ four_to_eight == 0 &&
+ eight_to_ten == 0 &&
+ ten_to_twelve == -1) {
+ struct sockaddr_in *in_ptr = (struct sockaddr_in *)&tmpaddr;
+ memset (&tmpaddr, 0, sizeof (tmpaddr));
+
+ in_ptr->sin_family = AF_INET;
+ in_ptr->sin_port = ((struct sockaddr_in6 *)addr)->sin6_port;
+ in_ptr->sin_addr.s_addr = twelve_to_sixteen;
+ tmpaddr_len = sizeof (*in_ptr);
+ }
+ }
+
+ ret = getnameinfo ((struct sockaddr *) &tmpaddr,
+ tmpaddr_len,
+ host, sizeof (host),
+ service, sizeof (service),
+ NI_NUMERICHOST | NI_NUMERICSERV);
+ if (ret != 0) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "getnameinfo failed (%s)", gai_strerror (ret));
+ }
+
+ sprintf (identifier, "%s:%s", host, service);
+
+ return ret;
+}
+
+int32_t
+get_transport_identifiers (rpc_transport_t *this)
+{
+ int32_t ret = 0;
+ char is_inet_sdp = 0;
+
+ switch (((struct sockaddr *) &this->myinfo.sockaddr)->sa_family)
+ {
+ case AF_INET_SDP:
+ is_inet_sdp = 1;
+ ((struct sockaddr *) &this->peerinfo.sockaddr)->sa_family = ((struct sockaddr *) &this->myinfo.sockaddr)->sa_family = AF_INET;
+
+ case AF_INET:
+ case AF_INET6:
+ {
+ ret = fill_inet6_inet_identifiers (this,
+ &this->myinfo.sockaddr,
+ this->myinfo.sockaddr_len,
+ this->myinfo.identifier);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "cannot fill inet/inet6 identifier for server");
+ goto err;
+ }
+
+ ret = fill_inet6_inet_identifiers (this,
+ &this->peerinfo.sockaddr,
+ this->peerinfo.sockaddr_len,
+ this->peerinfo.identifier);
+ if (ret == -1) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "cannot fill inet/inet6 identifier for client");
+ goto err;
+ }
+
+ if (is_inet_sdp) {
+ ((struct sockaddr *) &this->peerinfo.sockaddr)->sa_family = ((struct sockaddr *) &this->myinfo.sockaddr)->sa_family = AF_INET_SDP;
+ }
+ }
+ break;
+
+ case AF_UNIX:
+ {
+ struct sockaddr_un *sunaddr = NULL;
+
+ sunaddr = (struct sockaddr_un *) &this->myinfo.sockaddr;
+ strcpy (this->myinfo.identifier, sunaddr->sun_path);
+
+ sunaddr = (struct sockaddr_un *) &this->peerinfo.sockaddr;
+ strcpy (this->peerinfo.identifier, sunaddr->sun_path);
+ }
+ break;
+
+ default:
+ gf_log (this->name, GF_LOG_ERROR,
+ "unknown address family (%d)",
+ ((struct sockaddr *) &this->myinfo.sockaddr)->sa_family);
+ ret = -1;
+ break;
+ }
+
+err:
+ return ret;
+}
diff --git a/rpc/rpc-transport/socket/src/name.h b/rpc/rpc-transport/socket/src/name.h
new file mode 100644
index 000000000..6a89d383b
--- /dev/null
+++ b/rpc/rpc-transport/socket/src/name.h
@@ -0,0 +1,44 @@
+/*
+ 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 _SOCKET_NAME_H
+#define _SOCKET_NAME_H
+
+#include "compat.h"
+
+int32_t
+client_bind (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t *sockaddr_len,
+ int sock);
+
+int32_t
+socket_client_get_remote_sockaddr (rpc_transport_t *this,
+ struct sockaddr *sockaddr,
+ socklen_t *sockaddr_len,
+ sa_family_t *sa_family);
+
+int32_t
+socket_server_get_local_sockaddr (rpc_transport_t *this, struct sockaddr *addr,
+ socklen_t *addr_len, sa_family_t *sa_family);
+
+int32_t
+get_transport_identifiers (rpc_transport_t *this);
+
+#endif /* _SOCKET_NAME_H */
diff --git a/rpc/rpc-transport/socket/src/socket.c b/rpc/rpc-transport/socket/src/socket.c
new file mode 100644
index 000000000..4ca7121e8
--- /dev/null
+++ b/rpc/rpc-transport/socket/src/socket.c
@@ -0,0 +1,2308 @@
+/*
+ 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} }
+};
diff --git a/rpc/rpc-transport/socket/src/socket.h b/rpc/rpc-transport/socket/src/socket.h
new file mode 100644
index 000000000..aa31ee2a7
--- /dev/null
+++ b/rpc/rpc-transport/socket/src/socket.h
@@ -0,0 +1,190 @@
+/*
+ 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 _SOCKET_H
+#define _SOCKET_H
+
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "event.h"
+#include "rpc-transport.h"
+#include "logging.h"
+#include "dict.h"
+#include "mem-pool.h"
+
+#ifndef MAX_IOVEC
+#define MAX_IOVEC 16
+#endif /* MAX_IOVEC */
+
+#define GF_DEFAULT_SOCKET_LISTEN_PORT 6969
+
+/* This is the size set through setsockopt for
+ * both the TCP receive window size and the
+ * send buffer size.
+ * Till the time iobuf size becomes configurable, this size is set to include
+ * two iobufs + the GlusterFS protocol headers.
+ * Linux allows us to over-ride the max values for the system.
+ * Should we over-ride them? Because if we set a value larger than the default
+ * setsockopt will fail. Having larger values might be beneficial for
+ * IB links.
+ */
+#define GF_DEFAULT_SOCKET_WINDOW_SIZE (512 * GF_UNIT_KB)
+#define GF_MAX_SOCKET_WINDOW_SIZE (1 * GF_UNIT_MB)
+#define GF_MIN_SOCKET_WINDOW_SIZE (128 * GF_UNIT_KB)
+
+typedef enum {
+ SP_STATE_NADA = 0,
+ SP_STATE_COMPLETE,
+ SP_STATE_READING_FRAGHDR,
+ SP_STATE_READ_FRAGHDR,
+ SP_STATE_READING_FRAG,
+} sp_rpcrecord_state_t;
+
+typedef enum {
+ SP_STATE_RPCFRAG_INIT,
+ SP_STATE_READING_MSGTYPE,
+ SP_STATE_READ_MSGTYPE,
+} sp_rpcfrag_state_t;
+
+typedef enum {
+ SP_STATE_SIMPLE_MSG_INIT,
+ SP_STATE_READING_SIMPLE_MSG,
+} sp_rpcfrag_simple_msg_state_t;
+
+typedef enum {
+ SP_STATE_VECTORED_REQUEST_INIT,
+ SP_STATE_READING_CREDBYTES,
+ SP_STATE_READ_CREDBYTES, /* read credential data. */
+ SP_STATE_READING_VERFBYTES,
+ SP_STATE_READ_VERFBYTES, /* read verifier data */
+ SP_STATE_READING_PROG,
+} sp_rpcfrag_vectored_request_state_t;
+
+typedef enum {
+ SP_STATE_REQUEST_HEADER_INIT,
+ SP_STATE_READING_RPCHDR1,
+ SP_STATE_READ_RPCHDR1, /* read msg from beginning till and
+ * including credlen
+ */
+} sp_rpcfrag_request_header_state_t;
+
+struct ioq {
+ union {
+ struct list_head list;
+ struct {
+ struct ioq *next;
+ struct ioq *prev;
+ };
+ };
+
+ struct iovec vector[MAX_IOVEC];
+ int count;
+ struct iovec *pending_vector;
+ int pending_count;
+ struct iobref *iobref;
+};
+
+typedef struct {
+ sp_rpcfrag_request_header_state_t header_state;
+ sp_rpcfrag_vectored_request_state_t vector_state;
+} sp_rpcfrag_request_state_t;
+
+typedef enum {
+ SP_STATE_VECTORED_REPLY_STATUS_INIT,
+ SP_STATE_READING_REPLY_STATUS,
+ SP_STATE_READ_REPLY_STATUS,
+} sp_rpcfrag_vectored_reply_status_state_t;
+
+typedef enum {
+ SP_STATE_ACCEPTED_SUCCESS_REPLY_INIT,
+ SP_STATE_READING_PROC_HEADER,
+ SP_STATE_READ_PROC_HEADER,
+} sp_rpcfrag_vectored_reply_accepted_success_state_t;
+
+typedef enum {
+ SP_STATE_ACCEPTED_REPLY_INIT,
+ SP_STATE_READING_REPLY_VERFLEN,
+ SP_STATE_READ_REPLY_VERFLEN,
+ SP_STATE_READING_REPLY_VERFBYTES,
+ SP_STATE_READ_REPLY_VERFBYTES,
+} sp_rpcfrag_vectored_reply_accepted_state_t;
+
+typedef struct {
+ uint32_t accept_status;
+ sp_rpcfrag_vectored_reply_status_state_t status_state;
+ sp_rpcfrag_vectored_reply_accepted_state_t accepted_state;
+ sp_rpcfrag_vectored_reply_accepted_success_state_t accepted_success_state;
+} sp_rpcfrag_vectored_reply_state_t;
+
+typedef struct {
+ int32_t sock;
+ int32_t idx;
+ unsigned char connected; // -1 = not connected. 0 = in progress. 1 = connected
+ char bio;
+ char connect_finish_log;
+ char submit_log;
+ union {
+ struct list_head ioq;
+ struct {
+ struct ioq *ioq_next;
+ struct ioq *ioq_prev;
+ };
+ };
+ struct {
+ sp_rpcrecord_state_t record_state;
+ struct {
+ char *fragcurrent;
+ uint32_t bytes_read;
+ uint32_t remaining_size;
+ struct iovec vector;
+ struct iovec *pending_vector;
+ union {
+ sp_rpcfrag_request_state_t request;
+ sp_rpcfrag_vectored_reply_state_t reply;
+ } call_body;
+
+ sp_rpcfrag_simple_msg_state_t simple_state;
+ sp_rpcfrag_state_t state;
+ } frag;
+ struct iobuf *iobuf;
+ size_t iobuf_size;
+ struct iovec vector[2];
+ int count;
+ struct iobuf *vectoriob;
+ size_t vectoriob_size;
+ rpc_request_info_t *request_info;
+ struct iovec *pending_vector;
+ int pending_count;
+ uint32_t fraghdr;
+ char complete_record;
+ msg_type_t msg_type;
+ size_t total_bytes_read;
+ } incoming;
+ pthread_mutex_t lock;
+ int windowsize;
+ char lowlat;
+ char nodelay;
+} socket_private_t;
+
+
+#endif
generated by cgit (git 2.34.1) at 2024-11-02 16:26:17 +0000