Currently, if an acknowledgement of a timer fails Asterisk will not realize that a serious error occurred and will continue attempting to use the timer's file descriptor. This can lead to situations where errors stream to the CLI/log file. This consumes significant resources, masks the actual problem that occurred (whatever caused the timer to fail in the first place), and can leave channels in odd states. This patch propagates the errors in the timing resource modules up through the timer core, and makes users of these timers handle acknowledgement failures. It also adds some defensive coding around the use of timers to prevent using bad file descriptors in off nominal code paths. Note that the patch created by the issue reporter was modified slightly for this commit and backported to 1.8, as it was originally written for Asterisk 10. Review: https://reviewboard.asterisk.org/r/2178/ (issue ASTERISK-20032) Reported by: Jeremiah Gowdy patches: jgowdy-timerfd-6-22-2012.diff uploaded by Jeremiah Gowdy (license 6358) ........ Merged revisions 375893 from http://svn.asterisk.org/svn/asterisk/branches/1.8 ........ Merged revisions 375894 from http://svn.asterisk.org/svn/asterisk/branches/10 ........ Merged revisions 375895 from http://svn.asterisk.org/svn/asterisk/branches/11 git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@375896 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1122 lines
38 KiB
C
1122 lines
38 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2009-2010, Digium, Inc.
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*
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* Matthew Nicholson <mnicholson@digium.com>
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*
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* Initial T.38-gateway code
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* 2008, Daniel Ferenci <daniel.ferenci@nethemba.com>
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* Created by Nethemba s.r.o. http://www.nethemba.com
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* Sponsored by IPEX a.s. http://www.ipex.cz
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*
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* T.38-gateway integration into asterisk app_fax and rework
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* 2008, Gregory Hinton Nietsky <gregory@dnstelecom.co.za>
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* dns Telecom http://www.dnstelecom.co.za
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*
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* Modified to make T.38-gateway compatible with Asterisk 1.6.2
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* 2010, Anton Verevkin <mymail@verevkin.it>
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* ViaNetTV http://www.vianettv.com
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*
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* Modified to make T.38-gateway work
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* 2010, Klaus Darilion, IPCom GmbH, www.ipcom.at
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Spandsp T.38 and G.711 FAX Resource
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*
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* \author Matthew Nicholson <mnicholson@digium.com>
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* \author Gregory H. Nietsky <gregory@distrotech.co.za>
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*
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* This module registers the Spandsp FAX technology with the res_fax module.
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*/
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/*** MODULEINFO
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<depend>spandsp</depend>
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<depend>res_fax</depend>
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<support_level>extended</support_level>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
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#include <spandsp.h>
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#include <spandsp/version.h>
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#include "asterisk/logger.h"
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#include "asterisk/module.h"
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#include "asterisk/strings.h"
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#include "asterisk/cli.h"
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#include "asterisk/utils.h"
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#include "asterisk/timing.h"
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#include "asterisk/astobj2.h"
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#include "asterisk/res_fax.h"
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#include "asterisk/channel.h"
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#define SPANDSP_FAX_SAMPLES 160
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#define SPANDSP_FAX_TIMER_RATE 8000 / SPANDSP_FAX_SAMPLES /* 50 ticks per second, 20ms, 160 samples per second */
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#define SPANDSP_ENGAGE_UDPTL_NAT_RETRY 3
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static void *spandsp_fax_new(struct ast_fax_session *s, struct ast_fax_tech_token *token);
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static void spandsp_fax_destroy(struct ast_fax_session *s);
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static struct ast_frame *spandsp_fax_read(struct ast_fax_session *s);
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static int spandsp_fax_write(struct ast_fax_session *s, const struct ast_frame *f);
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static int spandsp_fax_start(struct ast_fax_session *s);
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static int spandsp_fax_cancel(struct ast_fax_session *s);
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static int spandsp_fax_switch_to_t38(struct ast_fax_session *s);
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static int spandsp_fax_gateway_start(struct ast_fax_session *s);
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static int spandsp_fax_gateway_process(struct ast_fax_session *s, const struct ast_frame *f);
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static void spandsp_fax_gateway_cleanup(struct ast_fax_session *s);
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static int spandsp_v21_detect(struct ast_fax_session *s, const struct ast_frame *f);
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static void spandsp_v21_cleanup(struct ast_fax_session *s);
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static void spandsp_v21_tone(void *data, int code, int level, int delay);
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static char *spandsp_fax_cli_show_capabilities(int fd);
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static char *spandsp_fax_cli_show_session(struct ast_fax_session *s, int fd);
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static char *spandsp_fax_cli_show_stats(int fd);
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static char *spandsp_fax_cli_show_settings(int fd);
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static struct ast_fax_tech spandsp_fax_tech = {
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.type = "Spandsp",
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.description = "Spandsp FAX Driver",
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#if SPANDSP_RELEASE_DATE >= 20090220
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/* spandsp 0.0.6 */
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.version = SPANDSP_RELEASE_DATETIME_STRING,
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#else
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/* spandsp 0.0.5
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* TODO: maybe we should determine the version better way
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*/
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.version = "pre-20090220",
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#endif
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.caps = AST_FAX_TECH_AUDIO | AST_FAX_TECH_T38 | AST_FAX_TECH_SEND
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| AST_FAX_TECH_RECEIVE | AST_FAX_TECH_GATEWAY
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| AST_FAX_TECH_V21_DETECT,
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.new_session = spandsp_fax_new,
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.destroy_session = spandsp_fax_destroy,
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.read = spandsp_fax_read,
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.write = spandsp_fax_write,
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.start_session = spandsp_fax_start,
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.cancel_session = spandsp_fax_cancel,
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.switch_to_t38 = spandsp_fax_switch_to_t38,
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.cli_show_capabilities = spandsp_fax_cli_show_capabilities,
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.cli_show_session = spandsp_fax_cli_show_session,
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.cli_show_stats = spandsp_fax_cli_show_stats,
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.cli_show_settings = spandsp_fax_cli_show_settings,
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};
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struct spandsp_fax_stats {
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int success;
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int nofax;
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int neg_failed;
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int failed_to_train;
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int rx_protocol_error;
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int tx_protocol_error;
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int protocol_error;
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int retries_exceeded;
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int file_error;
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int mem_error;
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int call_dropped;
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int unknown_error;
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int switched;
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};
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static struct {
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ast_mutex_t lock;
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struct spandsp_fax_stats g711;
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struct spandsp_fax_stats t38;
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} spandsp_global_stats;
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struct spandsp_pvt {
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unsigned int ist38:1;
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unsigned int isdone:1;
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enum ast_t38_state ast_t38_state;
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fax_state_t fax_state;
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t38_terminal_state_t t38_state;
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t30_state_t *t30_state;
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t38_core_state_t *t38_core_state;
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struct spandsp_fax_stats *stats;
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struct spandsp_fax_gw_stats *t38stats;
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t38_gateway_state_t t38_gw_state;
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struct ast_timer *timer;
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AST_LIST_HEAD(frame_queue, ast_frame) read_frames;
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int v21_detected;
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modem_connect_tones_rx_state_t *tone_state;
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};
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static int spandsp_v21_new(struct spandsp_pvt *p);
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static void session_destroy(struct spandsp_pvt *p);
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static int t38_tx_packet_handler(t38_core_state_t *t38_core_state, void *data, const uint8_t *buf, int len, int count);
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static void t30_phase_e_handler(t30_state_t *t30_state, void *data, int completion_code);
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static void spandsp_log(int level, const char *msg);
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static int update_stats(struct spandsp_pvt *p, int completion_code);
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static int spandsp_modems(struct ast_fax_session_details *details);
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static void set_logging(logging_state_t *state, struct ast_fax_session_details *details);
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static void set_local_info(t30_state_t *t30_state, struct ast_fax_session_details *details);
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static void set_file(t30_state_t *t30_state, struct ast_fax_session_details *details);
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static void set_ecm(t30_state_t *t30_state, struct ast_fax_session_details *details);
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static void session_destroy(struct spandsp_pvt *p)
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{
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struct ast_frame *f;
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t30_terminate(p->t30_state);
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p->isdone = 1;
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ast_timer_close(p->timer);
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p->timer = NULL;
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fax_release(&p->fax_state);
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t38_terminal_release(&p->t38_state);
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while ((f = AST_LIST_REMOVE_HEAD(&p->read_frames, frame_list))) {
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ast_frfree(f);
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}
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}
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/*! \brief
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*
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*/
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static int t38_tx_packet_handler(t38_core_state_t *t38_core_state, void *data, const uint8_t *buf, int len, int count)
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{
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int res = -1;
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struct ast_fax_session *s = data;
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struct spandsp_pvt *p = s->tech_pvt;
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struct ast_frame fax_frame = {
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.frametype = AST_FRAME_MODEM,
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.subclass.integer = AST_MODEM_T38,
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.src = "res_fax_spandsp_t38",
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};
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struct ast_frame *f = &fax_frame;
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/* TODO: Asterisk does not provide means of resending the same packet multiple
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times so count is ignored at the moment */
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AST_FRAME_SET_BUFFER(f, buf, 0, len);
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if (!(f = ast_frisolate(f))) {
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return res;
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}
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if (s->details->caps & AST_FAX_TECH_GATEWAY) {
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ast_set_flag(f, AST_FAX_FRFLAG_GATEWAY);
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if (p->ast_t38_state == T38_STATE_NEGOTIATED) {
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res = ast_write(s->chan, f);
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} else {
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res = ast_queue_frame(s->chan, f);
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}
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ast_frfree(f);
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} else {
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/* no need to lock, this all runs in the same thread */
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AST_LIST_INSERT_TAIL(&p->read_frames, f, frame_list);
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}
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return res;
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}
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static int update_stats(struct spandsp_pvt *p, int completion_code)
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{
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switch (completion_code) {
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case T30_ERR_OK:
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ast_atomic_fetchadd_int(&p->stats->success, 1);
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break;
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/* Link problems */
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case T30_ERR_CEDTONE: /*! The CED tone exceeded 5s */
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case T30_ERR_T0_EXPIRED: /*! Timed out waiting for initial communication */
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case T30_ERR_T1_EXPIRED: /*! Timed out waiting for the first message */
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case T30_ERR_T3_EXPIRED: /*! Timed out waiting for procedural interrupt */
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case T30_ERR_HDLC_CARRIER: /*! The HDLC carrier did not stop in a timely manner */
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case T30_ERR_CANNOT_TRAIN: /*! Failed to train with any of the compatible modems */
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ast_atomic_fetchadd_int(&p->stats->failed_to_train, 1);
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break;
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case T30_ERR_OPER_INT_FAIL: /*! Operator intervention failed */
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case T30_ERR_INCOMPATIBLE: /*! Far end is not compatible */
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case T30_ERR_RX_INCAPABLE: /*! Far end is not able to receive */
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case T30_ERR_TX_INCAPABLE: /*! Far end is not able to transmit */
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case T30_ERR_NORESSUPPORT: /*! Far end cannot receive at the resolution of the image */
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case T30_ERR_NOSIZESUPPORT: /*! Far end cannot receive at the size of image */
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ast_atomic_fetchadd_int(&p->stats->neg_failed, 1);
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break;
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case T30_ERR_UNEXPECTED: /*! Unexpected message received */
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ast_atomic_fetchadd_int(&p->stats->protocol_error, 1);
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break;
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/* Phase E status values returned to a transmitter */
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case T30_ERR_TX_BADDCS: /*! Received bad response to DCS or training */
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case T30_ERR_TX_BADPG: /*! Received a DCN from remote after sending a page */
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case T30_ERR_TX_ECMPHD: /*! Invalid ECM response received from receiver */
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case T30_ERR_TX_GOTDCN: /*! Received a DCN while waiting for a DIS */
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case T30_ERR_TX_INVALRSP: /*! Invalid response after sending a page */
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case T30_ERR_TX_NODIS: /*! Received other than DIS while waiting for DIS */
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case T30_ERR_TX_PHBDEAD: /*! Received no response to DCS, training or TCF */
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case T30_ERR_TX_PHDDEAD: /*! No response after sending a page */
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case T30_ERR_TX_T5EXP: /*! Timed out waiting for receiver ready (ECM mode) */
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ast_atomic_fetchadd_int(&p->stats->tx_protocol_error, 1);
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break;
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/* Phase E status values returned to a receiver */
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case T30_ERR_RX_ECMPHD: /*! Invalid ECM response received from transmitter */
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case T30_ERR_RX_GOTDCS: /*! DCS received while waiting for DTC */
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case T30_ERR_RX_INVALCMD: /*! Unexpected command after page received */
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case T30_ERR_RX_NOCARRIER: /*! Carrier lost during fax receive */
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case T30_ERR_RX_NOEOL: /*! Timed out while waiting for EOL (end Of line) */
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ast_atomic_fetchadd_int(&p->stats->rx_protocol_error, 1);
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break;
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case T30_ERR_RX_NOFAX: /*! Timed out while waiting for first line */
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ast_atomic_fetchadd_int(&p->stats->nofax, 1);
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break;
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case T30_ERR_RX_T2EXPDCN: /*! Timer T2 expired while waiting for DCN */
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case T30_ERR_RX_T2EXPD: /*! Timer T2 expired while waiting for phase D */
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case T30_ERR_RX_T2EXPFAX: /*! Timer T2 expired while waiting for fax page */
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case T30_ERR_RX_T2EXPMPS: /*! Timer T2 expired while waiting for next fax page */
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case T30_ERR_RX_T2EXPRR: /*! Timer T2 expired while waiting for RR command */
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case T30_ERR_RX_T2EXP: /*! Timer T2 expired while waiting for NSS, DCS or MCF */
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case T30_ERR_RX_DCNWHY: /*! Unexpected DCN while waiting for DCS or DIS */
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case T30_ERR_RX_DCNDATA: /*! Unexpected DCN while waiting for image data */
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case T30_ERR_RX_DCNFAX: /*! Unexpected DCN while waiting for EOM, EOP or MPS */
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case T30_ERR_RX_DCNPHD: /*! Unexpected DCN after EOM or MPS sequence */
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case T30_ERR_RX_DCNRRD: /*! Unexpected DCN after RR/RNR sequence */
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case T30_ERR_RX_DCNNORTN: /*! Unexpected DCN after requested retransmission */
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ast_atomic_fetchadd_int(&p->stats->rx_protocol_error, 1);
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break;
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/* TIFF file problems */
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case T30_ERR_FILEERROR: /*! TIFF/F file cannot be opened */
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case T30_ERR_NOPAGE: /*! TIFF/F page not found */
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case T30_ERR_BADTIFF: /*! TIFF/F format is not compatible */
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case T30_ERR_BADPAGE: /*! TIFF/F page number tag missing */
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case T30_ERR_BADTAG: /*! Incorrect values for TIFF/F tags */
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case T30_ERR_BADTIFFHDR: /*! Bad TIFF/F header - incorrect values in fields */
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ast_atomic_fetchadd_int(&p->stats->file_error, 1);
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break;
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case T30_ERR_NOMEM: /*! Cannot allocate memory for more pages */
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ast_atomic_fetchadd_int(&p->stats->mem_error, 1);
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break;
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/* General problems */
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case T30_ERR_RETRYDCN: /*! Disconnected after permitted retries */
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ast_atomic_fetchadd_int(&p->stats->retries_exceeded, 1);
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break;
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case T30_ERR_CALLDROPPED: /*! The call dropped prematurely */
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ast_atomic_fetchadd_int(&p->stats->call_dropped, 1);
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break;
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/* Feature negotiation issues */
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case T30_ERR_NOPOLL: /*! Poll not accepted */
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case T30_ERR_IDENT_UNACCEPTABLE: /*! Far end's ident is not acceptable */
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case T30_ERR_SUB_UNACCEPTABLE: /*! Far end's sub-address is not acceptable */
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case T30_ERR_SEP_UNACCEPTABLE: /*! Far end's selective polling address is not acceptable */
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case T30_ERR_PSA_UNACCEPTABLE: /*! Far end's polled sub-address is not acceptable */
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case T30_ERR_SID_UNACCEPTABLE: /*! Far end's sender identification is not acceptable */
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case T30_ERR_PWD_UNACCEPTABLE: /*! Far end's password is not acceptable */
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case T30_ERR_TSA_UNACCEPTABLE: /*! Far end's transmitting subscriber internet address is not acceptable */
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case T30_ERR_IRA_UNACCEPTABLE: /*! Far end's internet routing address is not acceptable */
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case T30_ERR_CIA_UNACCEPTABLE: /*! Far end's calling subscriber internet address is not acceptable */
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case T30_ERR_ISP_UNACCEPTABLE: /*! Far end's internet selective polling address is not acceptable */
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case T30_ERR_CSA_UNACCEPTABLE: /*! Far end's called subscriber internet address is not acceptable */
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ast_atomic_fetchadd_int(&p->stats->neg_failed, 1);
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break;
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default:
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ast_atomic_fetchadd_int(&p->stats->unknown_error, 1);
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ast_log(LOG_WARNING, "unknown FAX session result '%d' (%s)\n", completion_code, t30_completion_code_to_str(completion_code));
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return -1;
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}
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return 0;
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}
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/*! \brief Phase E handler callback.
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* \param t30_state the span t30 state
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* \param data this will be the ast_fax_session
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* \param completion_code the result of the fax session
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*
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* This function pulls stats from the spandsp stack and stores them for res_fax
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* to use later.
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*/
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static void t30_phase_e_handler(t30_state_t *t30_state, void *data, int completion_code)
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{
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struct ast_fax_session *s = data;
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struct spandsp_pvt *p = s->tech_pvt;
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char headerinfo[T30_MAX_PAGE_HEADER_INFO + 1];
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const char *c;
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t30_stats_t stats;
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ast_debug(5, "FAX session '%d' entering phase E\n", s->id);
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p->isdone = 1;
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update_stats(p, completion_code);
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t30_get_transfer_statistics(t30_state, &stats);
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if (completion_code == T30_ERR_OK) {
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ast_string_field_set(s->details, result, "SUCCESS");
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} else {
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ast_string_field_set(s->details, result, "FAILED");
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ast_string_field_set(s->details, error, t30_completion_code_to_str(completion_code));
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}
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ast_string_field_set(s->details, resultstr, t30_completion_code_to_str(completion_code));
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ast_debug(5, "FAX session '%d' completed with result: %s (%s)\n", s->id, s->details->result, s->details->resultstr);
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if ((c = t30_get_tx_ident(t30_state))) {
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ast_string_field_set(s->details, localstationid, c);
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}
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if ((c = t30_get_rx_ident(t30_state))) {
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ast_string_field_set(s->details, remotestationid, c);
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}
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|
|
|
#if SPANDSP_RELEASE_DATE >= 20090220
|
|
s->details->pages_transferred = (s->details->caps & AST_FAX_TECH_RECEIVE) ? stats.pages_rx : stats.pages_tx;
|
|
#else
|
|
s->details->pages_transferred = stats.pages_transferred;
|
|
#endif
|
|
|
|
ast_string_field_build(s->details, transfer_rate, "%d", stats.bit_rate);
|
|
|
|
ast_string_field_build(s->details, resolution, "%dx%d", stats.x_resolution, stats.y_resolution);
|
|
|
|
t30_get_tx_page_header_info(t30_state, headerinfo);
|
|
ast_string_field_set(s->details, headerinfo, headerinfo);
|
|
}
|
|
|
|
/*! \brief Send spandsp log messages to asterisk.
|
|
* \param level the spandsp logging level
|
|
* \param msg the log message
|
|
*
|
|
* \note This function is a callback function called by spandsp.
|
|
*/
|
|
static void spandsp_log(int level, const char *msg)
|
|
{
|
|
if (level == SPAN_LOG_ERROR) {
|
|
ast_log(LOG_ERROR, "%s", msg);
|
|
} else if (level == SPAN_LOG_WARNING) {
|
|
ast_log(LOG_WARNING, "%s", msg);
|
|
} else {
|
|
ast_fax_log(LOG_DEBUG, msg);
|
|
}
|
|
}
|
|
|
|
static void set_logging(logging_state_t *state, struct ast_fax_session_details *details)
|
|
{
|
|
int level = SPAN_LOG_WARNING;
|
|
|
|
if (details->option.debug) {
|
|
level = SPAN_LOG_DEBUG_3;
|
|
}
|
|
|
|
span_log_set_message_handler(state, spandsp_log);
|
|
span_log_set_level(state, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | level);
|
|
}
|
|
|
|
static void set_local_info(t30_state_t *t30_state, struct ast_fax_session_details *details)
|
|
{
|
|
if (!ast_strlen_zero(details->localstationid)) {
|
|
t30_set_tx_ident(t30_state, details->localstationid);
|
|
}
|
|
|
|
if (!ast_strlen_zero(details->headerinfo)) {
|
|
t30_set_tx_page_header_info(t30_state, details->headerinfo);
|
|
}
|
|
}
|
|
|
|
static void set_file(t30_state_t *t30_state, struct ast_fax_session_details *details)
|
|
{
|
|
if (details->caps & AST_FAX_TECH_RECEIVE) {
|
|
t30_set_rx_file(t30_state, AST_LIST_FIRST(&details->documents)->filename, -1);
|
|
} else {
|
|
/* if not AST_FAX_TECH_RECEIVE, assume AST_FAX_TECH_SEND, this
|
|
* should be safe because we ensure either RECEIVE or SEND is
|
|
* indicated in spandsp_fax_new() */
|
|
t30_set_tx_file(t30_state, AST_LIST_FIRST(&details->documents)->filename, -1, -1);
|
|
}
|
|
}
|
|
|
|
static void set_ecm(t30_state_t *t30_state, struct ast_fax_session_details *details)
|
|
{
|
|
t30_set_ecm_capability(t30_state, details->option.ecm);
|
|
t30_set_supported_compressions(t30_state, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
|
|
}
|
|
|
|
static int spandsp_v21_new(struct spandsp_pvt *p)
|
|
{
|
|
/* XXX Here we use MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE even though
|
|
* we don't care about CED tones. Using MODEM_CONNECT_TONES_PREAMBLE
|
|
* doesn't seem to work right all the time.
|
|
*/
|
|
p->tone_state = modem_connect_tones_rx_init(NULL, MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE, spandsp_v21_tone, p);
|
|
if (!p->tone_state) {
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int spandsp_modems(struct ast_fax_session_details *details)
|
|
{
|
|
int modems = 0;
|
|
if (AST_FAX_MODEM_V17 & details->modems) {
|
|
modems |= T30_SUPPORT_V17;
|
|
}
|
|
if (AST_FAX_MODEM_V27 & details->modems) {
|
|
modems |= T30_SUPPORT_V27TER;
|
|
}
|
|
if (AST_FAX_MODEM_V29 & details->modems) {
|
|
modems |= T30_SUPPORT_V29;
|
|
}
|
|
if (AST_FAX_MODEM_V34 & details->modems) {
|
|
#if defined(T30_SUPPORT_V34)
|
|
modems |= T30_SUPPORT_V34;
|
|
#elif defined(T30_SUPPORT_V34HDX)
|
|
modems |= T30_SUPPORT_V34HDX;
|
|
#else
|
|
ast_log(LOG_WARNING, "v34 not supported in this version of spandsp\n");
|
|
#endif
|
|
}
|
|
|
|
return modems;
|
|
}
|
|
|
|
/*! \brief create an instance of the spandsp tech_pvt for a fax session */
|
|
static void *spandsp_fax_new(struct ast_fax_session *s, struct ast_fax_tech_token *token)
|
|
{
|
|
struct spandsp_pvt *p;
|
|
int caller_mode;
|
|
|
|
if ((!(p = ast_calloc(1, sizeof(*p))))) {
|
|
ast_log(LOG_ERROR, "Cannot initialize the spandsp private FAX technology structure.\n");
|
|
goto e_return;
|
|
}
|
|
|
|
if (s->details->caps & AST_FAX_TECH_V21_DETECT) {
|
|
if (spandsp_v21_new(p)) {
|
|
ast_log(LOG_ERROR, "Cannot initialize the spandsp private v21 technology structure.\n");
|
|
goto e_return;
|
|
}
|
|
s->state = AST_FAX_STATE_ACTIVE;
|
|
return p;
|
|
}
|
|
|
|
if (s->details->caps & AST_FAX_TECH_GATEWAY) {
|
|
s->state = AST_FAX_STATE_INITIALIZED;
|
|
return p;
|
|
}
|
|
|
|
AST_LIST_HEAD_INIT(&p->read_frames);
|
|
|
|
if (s->details->caps & AST_FAX_TECH_RECEIVE) {
|
|
caller_mode = 0;
|
|
} else if (s->details->caps & AST_FAX_TECH_SEND) {
|
|
caller_mode = 1;
|
|
} else {
|
|
ast_log(LOG_ERROR, "Are we sending or receiving? The FAX requirements (capabilities: 0x%X) were not properly set.\n", s->details->caps);
|
|
goto e_free;
|
|
}
|
|
|
|
if (!(p->timer = ast_timer_open())) {
|
|
ast_log(LOG_ERROR, "Channel '%s' FAX session '%d' failed to create timing source.\n", s->channame, s->id);
|
|
goto e_free;
|
|
}
|
|
|
|
s->fd = ast_timer_fd(p->timer);
|
|
|
|
p->stats = &spandsp_global_stats.g711;
|
|
|
|
if (s->details->caps & AST_FAX_TECH_T38) {
|
|
if ((s->details->caps & AST_FAX_TECH_AUDIO) == 0) {
|
|
/* audio mode was not requested, start in T.38 mode */
|
|
p->ist38 = 1;
|
|
p->stats = &spandsp_global_stats.t38;
|
|
}
|
|
|
|
/* init t38 stuff */
|
|
t38_terminal_init(&p->t38_state, caller_mode, t38_tx_packet_handler, s);
|
|
set_logging(&p->t38_state.logging, s->details);
|
|
}
|
|
|
|
if (s->details->caps & AST_FAX_TECH_AUDIO) {
|
|
/* init audio stuff */
|
|
fax_init(&p->fax_state, caller_mode);
|
|
set_logging(&p->fax_state.logging, s->details);
|
|
}
|
|
|
|
s->state = AST_FAX_STATE_INITIALIZED;
|
|
return p;
|
|
|
|
e_free:
|
|
ast_free(p);
|
|
e_return:
|
|
return NULL;
|
|
}
|
|
|
|
static void spandsp_v21_cleanup(struct ast_fax_session *s) {
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
modem_connect_tones_rx_free(p->tone_state);
|
|
}
|
|
|
|
/*! \brief Destroy a spandsp fax session.
|
|
*/
|
|
static void spandsp_fax_destroy(struct ast_fax_session *s)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
if (s->details->caps & AST_FAX_TECH_GATEWAY) {
|
|
spandsp_fax_gateway_cleanup(s);
|
|
} else if (s->details->caps & AST_FAX_TECH_V21_DETECT) {
|
|
spandsp_v21_cleanup(s);
|
|
} else {
|
|
session_destroy(p);
|
|
}
|
|
|
|
ast_free(p);
|
|
s->tech_pvt = NULL;
|
|
s->fd = -1;
|
|
}
|
|
|
|
/*! \brief Read a frame from the spandsp fax stack.
|
|
*/
|
|
static struct ast_frame *spandsp_fax_read(struct ast_fax_session *s)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
uint8_t buffer[AST_FRIENDLY_OFFSET + SPANDSP_FAX_SAMPLES * sizeof(uint16_t)];
|
|
int16_t *buf = (int16_t *) (buffer + AST_FRIENDLY_OFFSET);
|
|
int samples;
|
|
|
|
struct ast_frame fax_frame = {
|
|
.frametype = AST_FRAME_VOICE,
|
|
.src = "res_fax_spandsp_g711",
|
|
};
|
|
struct ast_frame *f = &fax_frame;
|
|
ast_format_set(&fax_frame.subclass.format, AST_FORMAT_SLINEAR, 0);
|
|
|
|
if (ast_timer_ack(p->timer, 1) < 0) {
|
|
ast_log(LOG_ERROR, "Failed to acknowledge timer for FAX session '%d'\n", s->id);
|
|
return NULL;
|
|
}
|
|
|
|
/* XXX do we need to lock here? */
|
|
if (p->isdone) {
|
|
s->state = AST_FAX_STATE_COMPLETE;
|
|
ast_debug(5, "FAX session '%d' is complete.\n", s->id);
|
|
return NULL;
|
|
}
|
|
|
|
if (p->ist38) {
|
|
t38_terminal_send_timeout(&p->t38_state, SPANDSP_FAX_SAMPLES);
|
|
if ((f = AST_LIST_REMOVE_HEAD(&p->read_frames, frame_list))) {
|
|
return f;
|
|
}
|
|
} else {
|
|
if ((samples = fax_tx(&p->fax_state, buf, SPANDSP_FAX_SAMPLES)) > 0) {
|
|
f->samples = samples;
|
|
AST_FRAME_SET_BUFFER(f, buffer, AST_FRIENDLY_OFFSET, samples * sizeof(int16_t));
|
|
return ast_frisolate(f);
|
|
}
|
|
}
|
|
|
|
return &ast_null_frame;
|
|
}
|
|
|
|
static void spandsp_v21_tone(void *data, int code, int level, int delay)
|
|
{
|
|
struct spandsp_pvt *p = data;
|
|
|
|
if (code == MODEM_CONNECT_TONES_FAX_PREAMBLE) {
|
|
p->v21_detected = 1;
|
|
}
|
|
}
|
|
|
|
static int spandsp_v21_detect(struct ast_fax_session *s, const struct ast_frame *f) {
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
if (p->v21_detected) {
|
|
return 0;
|
|
}
|
|
|
|
/*invalid frame*/
|
|
if (!f->data.ptr || !f->datalen) {
|
|
return -1;
|
|
}
|
|
|
|
modem_connect_tones_rx(p->tone_state, f->data.ptr, f->samples);
|
|
|
|
if (p->v21_detected) {
|
|
s->details->option.v21_detected = 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief Write a frame to the spandsp fax stack.
|
|
* \param s a fax session
|
|
* \param f the frame to write
|
|
*
|
|
* \note res_fax does not currently use the return value of this function.
|
|
* Also the fax_rx() function never fails.
|
|
*
|
|
* \retval 0 success
|
|
* \retval -1 failure
|
|
*/
|
|
static int spandsp_fax_write(struct ast_fax_session *s, const struct ast_frame *f)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
if (s->details->caps & AST_FAX_TECH_V21_DETECT) {
|
|
return spandsp_v21_detect(s, f);
|
|
}
|
|
|
|
if (s->details->caps & AST_FAX_TECH_GATEWAY) {
|
|
return spandsp_fax_gateway_process(s, f);
|
|
}
|
|
|
|
/* XXX do we need to lock here? */
|
|
if (s->state == AST_FAX_STATE_COMPLETE) {
|
|
ast_log(LOG_WARNING, "FAX session '%d' is in the '%s' state.\n", s->id, ast_fax_state_to_str(s->state));
|
|
return -1;
|
|
}
|
|
|
|
if (p->ist38) {
|
|
return t38_core_rx_ifp_packet(p->t38_core_state, f->data.ptr, f->datalen, f->seqno);
|
|
} else {
|
|
return fax_rx(&p->fax_state, f->data.ptr, f->samples);
|
|
}
|
|
}
|
|
|
|
/*! \brief generate T.30 packets sent to the T.30 leg of gateway
|
|
* \param chan T.30 channel
|
|
* \param data fax session structure
|
|
* \param len not used
|
|
* \param samples no of samples generated
|
|
* \return -1 on failure or 0 on sucess*/
|
|
static int spandsp_fax_gw_t30_gen(struct ast_channel *chan, void *data, int len, int samples)
|
|
{
|
|
int res = -1;
|
|
struct ast_fax_session *s = data;
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
uint8_t buffer[AST_FRIENDLY_OFFSET + samples * sizeof(uint16_t)];
|
|
struct ast_frame *f;
|
|
struct ast_frame t30_frame = {
|
|
.frametype = AST_FRAME_VOICE,
|
|
.src = "res_fax_spandsp_g711",
|
|
.samples = samples,
|
|
.flags = AST_FAX_FRFLAG_GATEWAY,
|
|
};
|
|
|
|
AST_FRAME_SET_BUFFER(&t30_frame, buffer, AST_FRIENDLY_OFFSET, t30_frame.samples * sizeof(int16_t));
|
|
|
|
ast_format_set(&t30_frame.subclass.format, AST_FORMAT_SLINEAR, 0);
|
|
if (!(f = ast_frisolate(&t30_frame))) {
|
|
return p->isdone ? -1 : res;
|
|
}
|
|
|
|
/* generate a T.30 packet */
|
|
if ((f->samples = t38_gateway_tx(&p->t38_gw_state, f->data.ptr, f->samples))) {
|
|
f->datalen = f->samples * sizeof(int16_t);
|
|
res = ast_write(chan, f);
|
|
}
|
|
ast_frfree(f);
|
|
return p->isdone ? -1 : res;
|
|
}
|
|
|
|
/*! \brief simple routine to allocate data to generator
|
|
* \param chan channel
|
|
* \param params generator data
|
|
* \return data to use in generator call*/
|
|
static void *spandsp_fax_gw_gen_alloc(struct ast_channel *chan, void *params) {
|
|
ao2_ref(params, +1);
|
|
return params;
|
|
}
|
|
|
|
static void spandsp_fax_gw_gen_release(struct ast_channel *chan, void *data) {
|
|
ao2_ref(data, -1);
|
|
}
|
|
|
|
/*! \brief activate a spandsp gateway based on the information in the given fax session
|
|
* \param s fax session
|
|
* \return -1 on error 0 on sucess*/
|
|
static int spandsp_fax_gateway_start(struct ast_fax_session *s) {
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
struct ast_fax_t38_parameters *t38_param;
|
|
int i;
|
|
struct ast_channel *peer;
|
|
static struct ast_generator t30_gen = {
|
|
.alloc = spandsp_fax_gw_gen_alloc,
|
|
.release = spandsp_fax_gw_gen_release,
|
|
.generate = spandsp_fax_gw_t30_gen,
|
|
};
|
|
|
|
#if SPANDSP_RELEASE_DATE >= 20081012
|
|
/* for spandsp shaphots 0.0.6 and higher */
|
|
p->t38_core_state=&p->t38_gw_state.t38x.t38;
|
|
#else
|
|
/* for spandsp release 0.0.5 */
|
|
p->t38_core_state=&p->t38_gw_state.t38;
|
|
#endif
|
|
|
|
if (!t38_gateway_init(&p->t38_gw_state, t38_tx_packet_handler, s)) {
|
|
return -1;
|
|
}
|
|
|
|
p->ist38 = 1;
|
|
p->ast_t38_state = ast_channel_get_t38_state(s->chan);
|
|
if (!(peer = ast_bridged_channel(s->chan))) {
|
|
ast_channel_unlock(s->chan);
|
|
return -1;
|
|
}
|
|
|
|
/* we can be in T38_STATE_NEGOTIATING or T38_STATE_NEGOTIATED when the
|
|
* gateway is started. We treat both states the same. */
|
|
if (p->ast_t38_state == T38_STATE_NEGOTIATING) {
|
|
p->ast_t38_state = T38_STATE_NEGOTIATED;
|
|
}
|
|
|
|
ast_activate_generator(p->ast_t38_state == T38_STATE_NEGOTIATED ? peer : s->chan, &t30_gen , s);
|
|
|
|
set_logging(&p->t38_gw_state.logging, s->details);
|
|
set_logging(&p->t38_core_state->logging, s->details);
|
|
|
|
t38_param = (p->ast_t38_state == T38_STATE_NEGOTIATED) ? &s->details->our_t38_parameters : &s->details->their_t38_parameters;
|
|
t38_set_t38_version(p->t38_core_state, t38_param->version);
|
|
t38_gateway_set_ecm_capability(&p->t38_gw_state, s->details->option.ecm);
|
|
t38_set_max_datagram_size(p->t38_core_state, t38_param->max_ifp);
|
|
t38_set_fill_bit_removal(p->t38_core_state, t38_param->fill_bit_removal);
|
|
t38_set_mmr_transcoding(p->t38_core_state, t38_param->transcoding_mmr);
|
|
t38_set_jbig_transcoding(p->t38_core_state, t38_param->transcoding_jbig);
|
|
t38_set_data_rate_management_method(p->t38_core_state,
|
|
(t38_param->rate_management == AST_T38_RATE_MANAGEMENT_TRANSFERRED_TCF)? 1 : 2);
|
|
|
|
t38_gateway_set_transmit_on_idle(&p->t38_gw_state, TRUE);
|
|
t38_set_sequence_number_handling(p->t38_core_state, TRUE);
|
|
|
|
|
|
t38_gateway_set_supported_modems(&p->t38_gw_state, spandsp_modems(s->details));
|
|
|
|
/* engage udptl nat on other side of T38 line
|
|
* (Asterisk changes media ports thus we send a few packets to reinitialize
|
|
* pinholes in NATs and FWs
|
|
*/
|
|
for (i=0; i < SPANDSP_ENGAGE_UDPTL_NAT_RETRY; i++) {
|
|
#if SPANDSP_RELEASE_DATE >= 20091228
|
|
t38_core_send_indicator(&p->t38_gw_state.t38x.t38, T38_IND_NO_SIGNAL);
|
|
#elif SPANDSP_RELEASE_DATE >= 20081012
|
|
t38_core_send_indicator(&p->t38_gw_state.t38x.t38, T38_IND_NO_SIGNAL, p->t38_gw_state.t38x.t38.indicator_tx_count);
|
|
#else
|
|
t38_core_send_indicator(&p->t38_gw_state.t38, T38_IND_NO_SIGNAL, p->t38_gw_state.t38.indicator_tx_count);
|
|
#endif
|
|
}
|
|
|
|
s->state = AST_FAX_STATE_ACTIVE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief process a frame from the bridge
|
|
* \param s fax session
|
|
* \param f frame to process
|
|
* \return 1 on sucess 0 on incorect packet*/
|
|
static int spandsp_fax_gateway_process(struct ast_fax_session *s, const struct ast_frame *f)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
/*invalid frame*/
|
|
if (!f->data.ptr || !f->datalen) {
|
|
return -1;
|
|
}
|
|
|
|
/* Process a IFP packet */
|
|
if ((f->frametype == AST_FRAME_MODEM) && (f->subclass.integer == AST_MODEM_T38)) {
|
|
return t38_core_rx_ifp_packet(p->t38_core_state, f->data.ptr, f->datalen, f->seqno);
|
|
} else if ((f->frametype == AST_FRAME_VOICE) && (f->subclass.format.id == AST_FORMAT_SLINEAR)) {
|
|
return t38_gateway_rx(&p->t38_gw_state, f->data.ptr, f->samples);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*! \brief gather data and clean up after gateway ends
|
|
* \param s fax session*/
|
|
static void spandsp_fax_gateway_cleanup(struct ast_fax_session *s)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
t38_stats_t t38_stats;
|
|
|
|
t38_gateway_get_transfer_statistics(&p->t38_gw_state, &t38_stats);
|
|
|
|
s->details->option.ecm = t38_stats.error_correcting_mode ? AST_FAX_OPTFLAG_TRUE : AST_FAX_OPTFLAG_FALSE;
|
|
s->details->pages_transferred = t38_stats.pages_transferred;
|
|
ast_string_field_build(s->details, transfer_rate, "%d", t38_stats.bit_rate);
|
|
}
|
|
|
|
/*! \brief */
|
|
static int spandsp_fax_start(struct ast_fax_session *s)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
s->state = AST_FAX_STATE_OPEN;
|
|
|
|
if (s->details->caps & AST_FAX_TECH_GATEWAY) {
|
|
return spandsp_fax_gateway_start(s);
|
|
}
|
|
|
|
if (p->ist38) {
|
|
#if SPANDSP_RELEASE_DATE >= 20080725
|
|
/* for spandsp shaphots 0.0.6 and higher */
|
|
p->t30_state = &p->t38_state.t30;
|
|
p->t38_core_state = &p->t38_state.t38_fe.t38;
|
|
#else
|
|
/* for spandsp releases 0.0.5 */
|
|
p->t30_state = &p->t38_state.t30_state;
|
|
p->t38_core_state = &p->t38_state.t38;
|
|
#endif
|
|
} else {
|
|
#if SPANDSP_RELEASE_DATE >= 20080725
|
|
/* for spandsp shaphots 0.0.6 and higher */
|
|
p->t30_state = &p->fax_state.t30;
|
|
#else
|
|
/* for spandsp release 0.0.5 */
|
|
p->t30_state = &p->fax_state.t30_state;
|
|
#endif
|
|
}
|
|
|
|
set_logging(&p->t30_state->logging, s->details);
|
|
|
|
/* set some parameters */
|
|
set_local_info(p->t30_state, s->details);
|
|
set_file(p->t30_state, s->details);
|
|
set_ecm(p->t30_state, s->details);
|
|
t30_set_supported_modems(p->t30_state, spandsp_modems(s->details));
|
|
|
|
/* perhaps set_transmit_on_idle() should be called */
|
|
|
|
t30_set_phase_e_handler(p->t30_state, t30_phase_e_handler, s);
|
|
|
|
/* set T.38 parameters */
|
|
if (p->ist38) {
|
|
set_logging(&p->t38_core_state->logging, s->details);
|
|
|
|
t38_set_max_datagram_size(p->t38_core_state, s->details->their_t38_parameters.max_ifp);
|
|
|
|
if (s->details->their_t38_parameters.fill_bit_removal) {
|
|
t38_set_fill_bit_removal(p->t38_core_state, TRUE);
|
|
}
|
|
|
|
if (s->details->their_t38_parameters.transcoding_mmr) {
|
|
t38_set_mmr_transcoding(p->t38_core_state, TRUE);
|
|
}
|
|
|
|
if (s->details->their_t38_parameters.transcoding_jbig) {
|
|
t38_set_jbig_transcoding(p->t38_core_state, TRUE);
|
|
}
|
|
} else {
|
|
/* have the fax stack generate silence if it has no data to send */
|
|
fax_set_transmit_on_idle(&p->fax_state, 1);
|
|
}
|
|
|
|
|
|
/* start the timer */
|
|
if (ast_timer_set_rate(p->timer, SPANDSP_FAX_TIMER_RATE)) {
|
|
ast_log(LOG_ERROR, "FAX session '%d' error setting rate on timing source.\n", s->id);
|
|
return -1;
|
|
}
|
|
|
|
s->state = AST_FAX_STATE_ACTIVE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief */
|
|
static int spandsp_fax_cancel(struct ast_fax_session *s)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
if (s->details->caps & AST_FAX_TECH_GATEWAY) {
|
|
p->isdone = 1;
|
|
return 0;
|
|
}
|
|
|
|
t30_terminate(p->t30_state);
|
|
p->isdone = 1;
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief */
|
|
static int spandsp_fax_switch_to_t38(struct ast_fax_session *s)
|
|
{
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
/* prevent the phase E handler from running, this is not a real termination */
|
|
t30_set_phase_e_handler(p->t30_state, NULL, NULL);
|
|
|
|
t30_terminate(p->t30_state);
|
|
|
|
s->details->option.switch_to_t38 = 1;
|
|
ast_atomic_fetchadd_int(&p->stats->switched, 1);
|
|
|
|
p->ist38 = 1;
|
|
p->stats = &spandsp_global_stats.t38;
|
|
spandsp_fax_start(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*! \brief */
|
|
static char *spandsp_fax_cli_show_capabilities(int fd)
|
|
{
|
|
ast_cli(fd, "SEND RECEIVE T.38 G.711 GATEWAY\n\n");
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*! \brief */
|
|
static char *spandsp_fax_cli_show_session(struct ast_fax_session *s, int fd)
|
|
{
|
|
ao2_lock(s);
|
|
if (s->details->caps & AST_FAX_TECH_GATEWAY) {
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
ast_cli(fd, "%-22s : %d\n", "session", s->id);
|
|
ast_cli(fd, "%-22s : %s\n", "operation", "Gateway");
|
|
ast_cli(fd, "%-22s : %s\n", "state", ast_fax_state_to_str(s->state));
|
|
if (s->state != AST_FAX_STATE_UNINITIALIZED) {
|
|
t38_stats_t stats;
|
|
t38_gateway_get_transfer_statistics(&p->t38_gw_state, &stats);
|
|
ast_cli(fd, "%-22s : %s\n", "ECM Mode", stats.error_correcting_mode ? "Yes" : "No");
|
|
ast_cli(fd, "%-22s : %d\n", "Data Rate", stats.bit_rate);
|
|
ast_cli(fd, "%-22s : %d\n", "Page Number", stats.pages_transferred + 1);
|
|
}
|
|
} else if (s->details->caps & AST_FAX_TECH_V21_DETECT) {
|
|
ast_cli(fd, "%-22s : %d\n", "session", s->id);
|
|
ast_cli(fd, "%-22s : %s\n", "operation", "V.21 Detect");
|
|
ast_cli(fd, "%-22s : %s\n", "state", ast_fax_state_to_str(s->state));
|
|
} else {
|
|
struct spandsp_pvt *p = s->tech_pvt;
|
|
|
|
ast_cli(fd, "%-22s : %d\n", "session", s->id);
|
|
ast_cli(fd, "%-22s : %s\n", "operation", (s->details->caps & AST_FAX_TECH_RECEIVE) ? "Receive" : "Transmit");
|
|
ast_cli(fd, "%-22s : %s\n", "state", ast_fax_state_to_str(s->state));
|
|
if (s->state != AST_FAX_STATE_UNINITIALIZED) {
|
|
t30_stats_t stats;
|
|
t30_get_transfer_statistics(p->t30_state, &stats);
|
|
ast_cli(fd, "%-22s : %s\n", "Last Status", t30_completion_code_to_str(stats.current_status));
|
|
ast_cli(fd, "%-22s : %s\n", "ECM Mode", stats.error_correcting_mode ? "Yes" : "No");
|
|
ast_cli(fd, "%-22s : %d\n", "Data Rate", stats.bit_rate);
|
|
ast_cli(fd, "%-22s : %dx%d\n", "Image Resolution", stats.x_resolution, stats.y_resolution);
|
|
#if SPANDSP_RELEASE_DATE >= 20090220
|
|
ast_cli(fd, "%-22s : %d\n", "Page Number", ((s->details->caps & AST_FAX_TECH_RECEIVE) ? stats.pages_rx : stats.pages_tx) + 1);
|
|
#else
|
|
ast_cli(fd, "%-22s : %d\n", "Page Number", stats.pages_transferred + 1);
|
|
#endif
|
|
ast_cli(fd, "%-22s : %s\n", "File Name", s->details->caps & AST_FAX_TECH_RECEIVE ? p->t30_state->rx_file : p->t30_state->tx_file);
|
|
|
|
ast_cli(fd, "\nData Statistics:\n");
|
|
#if SPANDSP_RELEASE_DATE >= 20090220
|
|
ast_cli(fd, "%-22s : %d\n", "Tx Pages", stats.pages_tx);
|
|
ast_cli(fd, "%-22s : %d\n", "Rx Pages", stats.pages_rx);
|
|
#else
|
|
ast_cli(fd, "%-22s : %d\n", "Tx Pages", (s->details->caps & AST_FAX_TECH_SEND) ? stats.pages_transferred : 0);
|
|
ast_cli(fd, "%-22s : %d\n", "Rx Pages", (s->details->caps & AST_FAX_TECH_RECEIVE) ? stats.pages_transferred : 0);
|
|
#endif
|
|
ast_cli(fd, "%-22s : %d\n", "Longest Bad Line Run", stats.longest_bad_row_run);
|
|
ast_cli(fd, "%-22s : %d\n", "Total Bad Lines", stats.bad_rows);
|
|
}
|
|
}
|
|
ao2_unlock(s);
|
|
ast_cli(fd, "\n\n");
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*! \brief */
|
|
static char *spandsp_fax_cli_show_stats(int fd)
|
|
{
|
|
ast_mutex_lock(&spandsp_global_stats.lock);
|
|
ast_cli(fd, "\n%-20.20s\n", "Spandsp G.711");
|
|
ast_cli(fd, "%-20.20s : %d\n", "Success", spandsp_global_stats.g711.success);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Switched to T.38", spandsp_global_stats.g711.switched);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Call Dropped", spandsp_global_stats.g711.call_dropped);
|
|
ast_cli(fd, "%-20.20s : %d\n", "No FAX", spandsp_global_stats.g711.nofax);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Negotiation Failed", spandsp_global_stats.g711.neg_failed);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Train Failure", spandsp_global_stats.g711.failed_to_train);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Retries Exceeded", spandsp_global_stats.g711.retries_exceeded);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Protocol Error", spandsp_global_stats.g711.protocol_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "TX Protocol Error", spandsp_global_stats.g711.tx_protocol_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "RX Protocol Error", spandsp_global_stats.g711.rx_protocol_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "File Error", spandsp_global_stats.g711.file_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Memory Error", spandsp_global_stats.g711.mem_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Unknown Error", spandsp_global_stats.g711.unknown_error);
|
|
|
|
ast_cli(fd, "\n%-20.20s\n", "Spandsp T.38");
|
|
ast_cli(fd, "%-20.20s : %d\n", "Success", spandsp_global_stats.t38.success);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Call Dropped", spandsp_global_stats.t38.call_dropped);
|
|
ast_cli(fd, "%-20.20s : %d\n", "No FAX", spandsp_global_stats.t38.nofax);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Negotiation Failed", spandsp_global_stats.t38.neg_failed);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Train Failure", spandsp_global_stats.t38.failed_to_train);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Retries Exceeded", spandsp_global_stats.t38.retries_exceeded);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Protocol Error", spandsp_global_stats.t38.protocol_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "TX Protocol Error", spandsp_global_stats.t38.tx_protocol_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "RX Protocol Error", spandsp_global_stats.t38.rx_protocol_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "File Error", spandsp_global_stats.t38.file_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Memory Error", spandsp_global_stats.t38.mem_error);
|
|
ast_cli(fd, "%-20.20s : %d\n", "Unknown Error", spandsp_global_stats.t38.unknown_error);
|
|
ast_mutex_unlock(&spandsp_global_stats.lock);
|
|
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*! \brief Show res_fax_spandsp settings */
|
|
static char *spandsp_fax_cli_show_settings(int fd)
|
|
{
|
|
/* no settings at the moment */
|
|
return CLI_SUCCESS;
|
|
}
|
|
|
|
/*! \brief unload res_fax_spandsp */
|
|
static int unload_module(void)
|
|
{
|
|
ast_fax_tech_unregister(&spandsp_fax_tech);
|
|
ast_mutex_destroy(&spandsp_global_stats.lock);
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
/*! \brief load res_fax_spandsp */
|
|
static int load_module(void)
|
|
{
|
|
ast_mutex_init(&spandsp_global_stats.lock);
|
|
spandsp_fax_tech.module = ast_module_info->self;
|
|
if (ast_fax_tech_register(&spandsp_fax_tech) < 0) {
|
|
ast_log(LOG_ERROR, "failed to register FAX technology\n");
|
|
return AST_MODULE_LOAD_DECLINE;
|
|
}
|
|
|
|
/* prevent logging to stderr */
|
|
span_set_message_handler(NULL);
|
|
|
|
return AST_MODULE_LOAD_SUCCESS;
|
|
}
|
|
|
|
|
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Spandsp G.711 and T.38 FAX Technologies",
|
|
.load = load_module,
|
|
.unload = unload_module,
|
|
);
|