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* qemud/: Rename to daemon/ * Makefile.am, configure.in, src/Makefile.am, src/remote_internal.c, tests/Makefile.am, tests/eventtest.c: s/qemud/daemon/ where needed
285 lines
6.8 KiB
C
285 lines
6.8 KiB
C
/*
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* qemud.h: daemon data structure definitions
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*
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* Copyright (C) 2006-2009 Red Hat, Inc.
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* Copyright (C) 2006 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*/
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#ifndef QEMUD_INTERNAL_H__
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#define QEMUD_INTERNAL_H__
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#include <config.h>
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#include <gnutls/gnutls.h>
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#include <gnutls/x509.h>
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#include "gnutls_1_0_compat.h"
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#if HAVE_SASL
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#include <sasl/sasl.h>
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#endif
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#if HAVE_POLKIT0
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#include <dbus/dbus.h>
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#endif
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#ifdef HAVE_SYS_SYSLIMITS_H
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#include <sys/syslimits.h>
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#endif
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#include <rpc/types.h>
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#include <rpc/xdr.h>
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#include "remote_protocol.h"
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#include "logging.h"
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#include "threads.h"
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#ifdef __GNUC__
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#ifdef HAVE_ANSIDECL_H
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#include <ansidecl.h>
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#endif
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#ifndef __GNUC_PREREQ
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#if defined __GNUC__ && defined __GNUC_MINOR__
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# define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#else
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#define __GNUC_PREREQ(maj,min) 0
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#endif
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#endif
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/**
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* ATTRIBUTE_UNUSED:
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*
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* Macro to flag conciously unused parameters to functions
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*/
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#ifndef ATTRIBUTE_UNUSED
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#define ATTRIBUTE_UNUSED __attribute__((__unused__))
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#endif
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/**
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* ATTRIBUTE_FMT_PRINTF
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*
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* Macro used to check printf like functions, if compiling
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* with gcc.
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*
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* We use gnulib which guarentees we always have GNU style
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* printf format specifiers even on broken Win32 platforms
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* hence we have to force 'gnu_printf' for new GCC
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*/
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#ifndef ATTRIBUTE_FMT_PRINTF
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#if __GNUC_PREREQ (4, 4)
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#define ATTRIBUTE_FMT_PRINTF(fmtpos,argpos) __attribute__((__format__ (gnu_printf, fmtpos,argpos)))
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#else
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#define ATTRIBUTE_FMT_PRINTF(fmtpos,argpos) __attribute__((__format__ (printf, fmtpos,argpos)))
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#endif
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#endif
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#ifndef ATTRIBUTE_RETURN_CHECK
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#if __GNUC_PREREQ (3, 4)
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#define ATTRIBUTE_RETURN_CHECK __attribute__((__warn_unused_result__))
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#else
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#define ATTRIBUTE_RETURN_CHECK
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#endif
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#endif
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#else
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#ifndef ATTRIBUTE_UNUSED
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#define ATTRIBUTE_UNUSED
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#endif
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#ifndef ATTRIBUTE_FMT_PRINTF
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#define ATTRIBUTE_FMT_PRINTF(...)
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#endif
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#ifndef ATTRIBUTE_RETURN_CHECK
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#define ATTRIBUTE_RETURN_CHECK
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#endif
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#endif
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#define qemudDebug DEBUG
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/* Whether we're passing reads & writes through a sasl SSF */
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enum qemud_sasl_ssf {
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QEMUD_SASL_SSF_NONE = 0,
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QEMUD_SASL_SSF_READ = 1,
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QEMUD_SASL_SSF_WRITE = 2,
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};
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enum qemud_sock_type {
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QEMUD_SOCK_TYPE_UNIX = 0,
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QEMUD_SOCK_TYPE_TCP = 1,
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QEMUD_SOCK_TYPE_TLS = 2,
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};
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struct qemud_client_message {
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char buffer [REMOTE_MESSAGE_MAX + REMOTE_MESSAGE_HEADER_XDR_LEN];
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unsigned int bufferLength;
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unsigned int bufferOffset;
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int async : 1;
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remote_message_header hdr;
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struct qemud_client_message *next;
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};
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/* Allow for filtering of incoming messages to a custom
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* dispatch processing queue, instead of client->dx.
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*/
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typedef int (*qemud_client_filter_func)(struct qemud_client_message *msg, void *opaque);
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struct qemud_client_filter {
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qemud_client_filter_func query;
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void *opaque;
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struct qemud_client_message *dx;
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struct qemud_client_filter *next;
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};
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/* Stores the per-client connection state */
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struct qemud_client {
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virMutex lock;
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int magic;
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int fd;
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int watch;
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int readonly:1;
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int closing:1;
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struct sockaddr_storage addr;
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socklen_t addrlen;
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int type; /* qemud_sock_type */
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gnutls_session_t tlssession;
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int auth;
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int handshake : 1; /* If we're in progress for TLS handshake */
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#if HAVE_SASL
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sasl_conn_t *saslconn;
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int saslSSF;
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const char *saslDecoded;
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unsigned int saslDecodedLength;
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unsigned int saslDecodedOffset;
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const char *saslEncoded;
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unsigned int saslEncodedLength;
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unsigned int saslEncodedOffset;
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char *saslUsername;
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#endif
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/* Count of meages in 'dx' or 'tx' queue
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* ie RPC calls in progress. Does not count
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* async events which are not used for
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* throttling calculations */
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int nrequests;
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/* Zero or one messages being received. Zero if
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* nrequests >= max_clients and throttling */
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struct qemud_client_message *rx;
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/* Zero or many messages waiting for a worker
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* to process them */
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struct qemud_client_message *dx;
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/* Zero or many messages waiting for transmit
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* back to client, including async events */
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struct qemud_client_message *tx;
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/* Filters to capture messages that would otherwise
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* end up on the 'dx' queue */
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struct qemud_client_filter *filters;
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/* This is only valid if a remote open call has been made on this
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* connection, otherwise it will be NULL. Also if remote close is
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* called, it will be set back to NULL if that succeeds.
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*/
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virConnectPtr conn;
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int refs;
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};
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#define QEMUD_CLIENT_MAGIC 0x7788aaee
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struct qemud_socket {
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int fd;
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int watch;
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int readonly;
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int type; /* qemud_sock_type */
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int auth;
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int port;
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struct qemud_socket *next;
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};
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struct qemud_worker {
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pthread_t thread;
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int hasThread :1;
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int processingCall :1;
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int quitRequest : 1;
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/* back-pointer to our server */
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struct qemud_server *server;
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};
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/* Main server state */
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struct qemud_server {
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virMutex lock;
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virCond job;
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int privileged;
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int nworkers;
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int nactiveworkers;
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struct qemud_worker *workers;
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int nsockets;
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struct qemud_socket *sockets;
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int nclients;
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struct qemud_client **clients;
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int sigread;
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char *logDir;
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unsigned int shutdown : 1;
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#ifdef HAVE_AVAHI
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struct libvirtd_mdns *mdns;
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#endif
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#if HAVE_SASL
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char **saslUsernameWhitelist;
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#endif
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#if HAVE_POLKIT0
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DBusConnection *sysbus;
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#endif
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};
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void qemudLog(int priority, const char *fmt, ...)
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ATTRIBUTE_FMT_PRINTF(2,3);
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int qemudRegisterClientEvent(struct qemud_server *server,
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struct qemud_client *client);
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void qemudUpdateClientEvent(struct qemud_client *client);
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void qemudDispatchClientFailure(struct qemud_client *client);
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void
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qemudClientMessageQueuePush(struct qemud_client_message **queue,
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struct qemud_client_message *msg);
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struct qemud_client_message *
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qemudClientMessageQueueServe(struct qemud_client_message **queue);
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#if HAVE_POLKIT
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int qemudGetSocketIdentity(int fd, uid_t *uid, pid_t *pid);
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#endif
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#endif
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