#include "asterisk.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <errno.h>
#include <stdlib.h>
#include <fcntl.h>
#include <netdb.h>
#include <sys/signal.h>
#include <signal.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <arpa/inet.h>
#include <ctype.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/logger.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/options.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/rtp.h"
#include "asterisk/acl.h"
#include "asterisk/callerid.h"
#include "asterisk/cli.h"
#include "asterisk/say.h"
#include "asterisk/cdr.h"
#include "asterisk/astdb.h"
#include "asterisk/features.h"
#include "asterisk/app.h"
#include "asterisk/musiconhold.h"
#include "asterisk/utils.h"
#include "asterisk/causes.h"
#include "asterisk/dsp.h"
#include "asterisk/devicestate.h"
#include "asterisk/stringfields.h"
#include "asterisk/abstract_jb.h"
Go to the source code of this file.
Data Structures | |
struct | mgcp_endpoint |
struct | mgcp_gateway |
struct | mgcp_message |
mgcp_message: MGCP message for queuing up More... | |
struct | mgcp_request |
struct | mgcp_response |
struct | mgcp_subchannel |
Defines | |
#define | CANREINVITE 1 |
#define | DEFAULT_EXPIRY 120 |
#define | DEFAULT_MGCP_CA_PORT 2727 |
#define | DEFAULT_MGCP_GW_PORT 2427 |
#define | DEFAULT_RETRANS 1000 |
#define | INADDR_NONE (in_addr_t)(-1) |
#define | IPTOS_MINCOST 0x02 |
#define | MAX_EXPIRY 3600 |
#define | MAX_RETRANS 5 |
#define | MAX_SUBS 2 |
#define | MGCP_CX_CONF 3 |
#define | MGCP_CX_CONFERENCE 3 |
#define | MGCP_CX_INACTIVE 4 |
#define | MGCP_CX_MUTE 4 |
#define | MGCP_CX_RECVONLY 1 |
#define | MGCP_CX_SENDONLY 0 |
#define | MGCP_CX_SENDRECV 2 |
#define | MGCP_DTMF_HYBRID (1 << 2) |
#define | MGCP_DTMF_INBAND (1 << 1) |
#define | MGCP_DTMF_RFC2833 (1 << 0) |
#define | MGCP_MAX_HEADERS 64 |
#define | MGCP_MAX_LINES 64 |
#define | MGCP_MAX_PACKET 1500 |
#define | MGCP_OFFHOOK 2 |
#define | MGCP_ONHOOK 1 |
#define | MGCP_SUBCHANNEL_MAGIC "!978!" |
#define | MGCPDUMPER |
#define | RESPONSE_TIMEOUT 30 |
#define | SUB_ALT 1 |
#define | SUB_REAL 0 |
#define | TYPE_LINE 2 |
#define | TYPE_TRUNK 1 |
Enumerations | |
enum | { MGCP_CMD_EPCF, MGCP_CMD_CRCX, MGCP_CMD_MDCX, MGCP_CMD_DLCX, MGCP_CMD_RQNT, MGCP_CMD_NTFY, MGCP_CMD_AUEP, MGCP_CMD_AUCX, MGCP_CMD_RSIP } |
Functions | |
static char * | __get_header (struct mgcp_request *req, char *name, int *start) |
static int | __mgcp_xmit (struct mgcp_gateway *gw, char *data, int len) |
static int | add_header (struct mgcp_request *req, char *var, char *value) |
static void | add_header_offhook (struct mgcp_subchannel *sub, struct mgcp_request *resp) |
static int | add_line (struct mgcp_request *req, char *line) |
static int | add_sdp (struct mgcp_request *resp, struct mgcp_subchannel *sub, struct ast_rtp *rtp) |
AST_MODULE_INFO (ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT,"Media Gateway Control Protocol (MGCP)",.load=load_module,.unload=unload_module,.reload=reload,) | |
AST_MUTEX_DEFINE_STATIC (gatelock) | |
gatelock: mutex for gateway/endpoint lists | |
AST_MUTEX_DEFINE_STATIC (mgcp_reload_lock) | |
AST_MUTEX_DEFINE_STATIC (monlock) | |
AST_MUTEX_DEFINE_STATIC (netlock) | |
static int | attempt_transfer (struct mgcp_endpoint *p) |
static struct mgcp_gateway * | build_gateway (char *cat, struct ast_variable *v) |
build_gateway: parse mgcp.conf and create gateway/endpoint structures | |
static char * | control2str (int ind) |
static void | destroy_endpoint (struct mgcp_endpoint *e) |
static void | destroy_gateway (struct mgcp_gateway *g) |
static void * | do_monitor (void *data) |
static void | dump_cmd_queues (struct mgcp_endpoint *p, struct mgcp_subchannel *sub) |
dump_cmd_queues: (SC:) cleanup pending commands | |
static void | dump_queue (struct mgcp_gateway *gw, struct mgcp_endpoint *p) |
static int | find_and_retrans (struct mgcp_subchannel *sub, struct mgcp_request *req) |
static struct mgcp_request * | find_command (struct mgcp_endpoint *p, struct mgcp_subchannel *sub, struct mgcp_request **queue, ast_mutex_t *l, int ident) |
find_command: (SC:) remove command transaction from queue | |
static struct mgcp_subchannel * | find_subchannel_and_lock (char *name, int msgid, struct sockaddr_in *sin) |
static char * | get_csv (char *c, int *len, char **next) |
get_csv: (SC:) get comma separated value | |
static char * | get_header (struct mgcp_request *req, char *name) |
static char * | get_sdp (struct mgcp_request *req, char *name) |
static char * | get_sdp_by_line (char *line, char *name, int nameLen) |
static char * | get_sdp_iterate (int *iterator, struct mgcp_request *req, char *name) |
static void | handle_hd_hf (struct mgcp_subchannel *sub, char *ev) |
static int | handle_request (struct mgcp_subchannel *sub, struct mgcp_request *req, struct sockaddr_in *sin) |
static void | handle_response (struct mgcp_endpoint *p, struct mgcp_subchannel *sub, int result, unsigned int ident, struct mgcp_request *resp) |
static int | has_voicemail (struct mgcp_endpoint *p) |
static int | init_req (struct mgcp_endpoint *p, struct mgcp_request *req, char *verb) |
static int | init_resp (struct mgcp_request *req, char *resp, struct mgcp_request *orig, char *resprest) |
static int | load_module (void) |
load_module: PBX load module - initialization --- | |
static int | mgcp_answer (struct ast_channel *ast) |
static int | mgcp_audit_endpoint (int fd, int argc, char *argv[]) |
static int | mgcp_call (struct ast_channel *ast, char *dest, int timeout) |
static int | mgcp_devicestate (void *data) |
mgcp_devicestate: channel callback for device status monitoring | |
static int | mgcp_do_debug (int fd, int argc, char *argv[]) |
static int | mgcp_do_reload (void) |
mgcp_do_reload: Reload module | |
static int | mgcp_fixup (struct ast_channel *oldchan, struct ast_channel *newchan) |
static enum ast_rtp_get_result | mgcp_get_rtp_peer (struct ast_channel *chan, struct ast_rtp **rtp) |
static int | mgcp_hangup (struct ast_channel *ast) |
static int | mgcp_indicate (struct ast_channel *ast, int ind, const void *data, size_t datalen) |
static struct ast_channel * | mgcp_new (struct mgcp_subchannel *sub, int state) |
static int | mgcp_no_debug (int fd, int argc, char *argv[]) |
static int | mgcp_postrequest (struct mgcp_endpoint *p, struct mgcp_subchannel *sub, char *data, int len, unsigned int seqno) |
static void | mgcp_queue_control (struct mgcp_subchannel *sub, int control) |
static void | mgcp_queue_frame (struct mgcp_subchannel *sub, struct ast_frame *f) |
static void | mgcp_queue_hangup (struct mgcp_subchannel *sub) |
static struct ast_frame * | mgcp_read (struct ast_channel *ast) |
static int | mgcp_reload (int fd, int argc, char *argv[]) |
static struct ast_channel * | mgcp_request (const char *type, int format, void *data, int *cause) |
static struct ast_frame * | mgcp_rtp_read (struct mgcp_subchannel *sub) |
static int | mgcp_senddigit_begin (struct ast_channel *ast, char digit) |
static int | mgcp_senddigit_end (struct ast_channel *ast, char digit, unsigned int duration) |
static int | mgcp_set_rtp_peer (struct ast_channel *chan, struct ast_rtp *rtp, struct ast_rtp *vrtp, int codecs, int nat_active) |
static int | mgcp_show_endpoints (int fd, int argc, char *argv[]) |
static void * | mgcp_ss (void *data) |
static int | mgcp_write (struct ast_channel *ast, struct ast_frame *frame) |
static int | mgcpsock_read (int *id, int fd, short events, void *ignore) |
static void | parse (struct mgcp_request *req) |
static int | process_sdp (struct mgcp_subchannel *sub, struct mgcp_request *req) |
static void | prune_gateways (void) |
static int | reload (void) |
static int | reload_config (void) |
static int | reqprep (struct mgcp_request *req, struct mgcp_endpoint *p, char *verb) |
static int | resend_response (struct mgcp_subchannel *sub, struct mgcp_response *resp) |
static int | respprep (struct mgcp_request *resp, struct mgcp_endpoint *p, char *msg, struct mgcp_request *req, char *msgrest) |
static int | restart_monitor (void) |
static int | retrans_pkt (const void *data) |
static void | sdpLineNum_iterator_init (int *iterator) |
static int | send_request (struct mgcp_endpoint *p, struct mgcp_subchannel *sub, struct mgcp_request *req, unsigned int seqno) |
static int | send_response (struct mgcp_subchannel *sub, struct mgcp_request *req) |
static void | start_rtp (struct mgcp_subchannel *sub) |
static int | transmit_audit_endpoint (struct mgcp_endpoint *p) |
static int | transmit_connect_with_sdp (struct mgcp_subchannel *sub, struct ast_rtp *rtp) |
static int | transmit_connection_del (struct mgcp_subchannel *sub) |
static int | transmit_connection_del_w_params (struct mgcp_endpoint *p, char *callid, char *cxident) |
static int | transmit_modify_request (struct mgcp_subchannel *sub) |
static int | transmit_modify_with_sdp (struct mgcp_subchannel *sub, struct ast_rtp *rtp, int codecs) |
static int | transmit_notify_request (struct mgcp_subchannel *sub, char *tone) |
static int | transmit_notify_request_with_callerid (struct mgcp_subchannel *sub, char *tone, char *callernum, char *callername) |
static int | transmit_response (struct mgcp_subchannel *sub, char *msg, struct mgcp_request *req, char *msgrest) |
static int | unalloc_sub (struct mgcp_subchannel *sub) |
static int | unload_module (void) |
Variables | |
static struct in_addr | __ourip |
static char | accountcode [AST_MAX_ACCOUNT_CODE] = "" |
static int | adsi = 0 |
static int | amaflags = 0 |
static char | audit_endpoint_usage [] |
static struct sockaddr_in | bindaddr |
static int | callreturn = 0 |
static int | callwaiting = 0 |
static int | cancallforward = 0 |
static int | canreinvite = CANREINVITE |
static int | capability = AST_FORMAT_ULAW |
static char | cid_name [AST_MAX_EXTENSION] = "" |
static char | cid_num [AST_MAX_EXTENSION] = "" |
static struct ast_cli_entry | cli_mgcp [] |
static const char | config [] = "mgcp.conf" |
static char | context [AST_MAX_EXTENSION] = "default" |
static ast_group_t | cur_callergroup = 0 |
static ast_group_t | cur_pickupgroup = 0 |
static char | debug_usage [] |
static struct ast_jb_conf | default_jbconf |
static int | dtmfmode = 0 |
static int | firstdigittimeout = 16000 |
static struct mgcp_gateway * | gateways |
static int | gendigittimeout = 8000 |
static struct ast_jb_conf | global_jbconf |
static int | immediate = 0 |
static struct io_context * | io |
static char | language [MAX_LANGUAGE] = "" |
static char | mailbox [AST_MAX_EXTENSION] |
static int | matchdigittimeout = 3000 |
static char * | mgcp_cxmodes [] |
static char | mgcp_reload_usage [] |
static int | mgcp_reloading = 0 |
static struct ast_rtp_protocol | mgcp_rtp |
static struct ast_channel_tech | mgcp_tech |
static int | mgcpdebug = 0 |
static int | mgcpsock = -1 |
static int * | mgcpsock_read_id = NULL |
static pthread_t | monitor_thread = AST_PTHREADT_NULL |
static char | musicclass [MAX_MUSICCLASS] = "" |
static int | nat = 0 |
static char | no_debug_usage [] |
static int | nonCodecCapability = AST_RTP_DTMF |
static unsigned int | oseq |
static char | ourhost [MAXHOSTNAMELEN] |
static int | ourport |
static struct sched_context * | sched |
static char | show_endpoints_usage [] |
static int | singlepath = 0 |
static int | slowsequence = 0 |
static const char | tdesc [] = "Media Gateway Control Protocol (MGCP)" |
static int | threewaycalling = 0 |
static int | tos = 0 |
static int | transfer = 0 |
Definition in file chan_mgcp.c.
#define CANREINVITE 1 |
#define DEFAULT_EXPIRY 120 |
#define DEFAULT_MGCP_CA_PORT 2727 |
#define DEFAULT_MGCP_GW_PORT 2427 |
#define DEFAULT_RETRANS 1000 |
How frequently to retransmit
Definition at line 122 of file chan_mgcp.c.
Referenced by __sip_reliable_xmit(), mgcp_postrequest(), and retrans_pkt().
#define INADDR_NONE (in_addr_t)(-1) |
#define IPTOS_MINCOST 0x02 |
Definition at line 84 of file chan_mgcp.c.
#define MAX_EXPIRY 3600 |
Definition at line 95 of file chan_mgcp.c.
#define MAX_RETRANS 5 |
Try only 5 times for retransmissions
Definition at line 123 of file chan_mgcp.c.
Referenced by retrans_pkt().
#define MAX_SUBS 2 |
#define MGCP_CX_CONF 3 |
#define MGCP_CX_CONFERENCE 3 |
Definition at line 130 of file chan_mgcp.c.
#define MGCP_CX_INACTIVE 4 |
Definition at line 132 of file chan_mgcp.c.
Referenced by build_gateway(), mgcp_hangup(), and unalloc_sub().
#define MGCP_CX_MUTE 4 |
#define MGCP_CX_RECVONLY 1 |
Definition at line 127 of file chan_mgcp.c.
Referenced by handle_request(), mgcp_call(), and mgcp_hangup().
#define MGCP_CX_SENDONLY 0 |
MGCP rtp stream modes {
Definition at line 126 of file chan_mgcp.c.
#define MGCP_CX_SENDRECV 2 |
Definition at line 128 of file chan_mgcp.c.
Referenced by handle_hd_hf(), handle_request(), mgcp_answer(), and mgcp_call().
#define MGCP_DTMF_HYBRID (1 << 2) |
Definition at line 117 of file chan_mgcp.c.
Referenced by add_header_offhook(), build_gateway(), mgcp_hangup(), mgcp_new(), mgcp_senddigit_begin(), mgcp_senddigit_end(), and mgcp_ss().
#define MGCP_DTMF_INBAND (1 << 1) |
Definition at line 116 of file chan_mgcp.c.
Referenced by add_header_offhook(), build_gateway(), mgcp_hangup(), mgcp_new(), mgcp_rtp_read(), mgcp_senddigit_begin(), mgcp_senddigit_end(), and mgcp_ss().
#define MGCP_DTMF_RFC2833 (1 << 0) |
Definition at line 115 of file chan_mgcp.c.
Referenced by build_gateway(), mgcp_rtp_read(), mgcp_senddigit_begin(), and mgcp_senddigit_end().
#define MGCP_MAX_HEADERS 64 |
The private structures of the mgcp channels are linked for ! selecting outgoing channels
Definition at line 234 of file chan_mgcp.c.
Referenced by add_header(), init_req(), init_resp(), and parse().
#define MGCP_MAX_LINES 64 |
#define MGCP_MAX_PACKET 1500 |
Also from RFC 2543, should sub headers tho
Definition at line 121 of file chan_mgcp.c.
#define MGCP_OFFHOOK 2 |
Definition at line 309 of file chan_mgcp.c.
Referenced by handle_hd_hf(), handle_request(), handle_response(), mgcp_call(), mgcp_hangup(), transmit_modify_request(), transmit_notify_request(), and transmit_notify_request_with_callerid().
#define MGCP_ONHOOK 1 |
Definition at line 308 of file chan_mgcp.c.
Referenced by build_gateway(), do_monitor(), handle_request(), handle_response(), mgcp_call(), mgcp_hangup(), mgcp_request(), transmit_modify_request(), transmit_notify_request(), and transmit_notify_request_with_callerid().
#define MGCP_SUBCHANNEL_MAGIC "!978!" |
subchannel magic string. Needed to prove that any subchannel pointer passed by asterisk really points to a valid subchannel memory area. Ugly.. But serves the purpose for the time being.
Definition at line 286 of file chan_mgcp.c.
Referenced by build_gateway(), and mgcp_hangup().
#define MGCPDUMPER |
Definition at line 93 of file chan_mgcp.c.
#define RESPONSE_TIMEOUT 30 |
#define SUB_ALT 1 |
Definition at line 278 of file chan_mgcp.c.
#define SUB_REAL 0 |
Definition at line 277 of file chan_mgcp.c.
#define TYPE_LINE 2 |
Definition at line 312 of file chan_mgcp.c.
Referenced by build_device(), build_gateway(), do_monitor(), mgcp_call(), and skinny_hangup().
#define TYPE_TRUNK 1 |
anonymous enum |
MGCP_CMD_EPCF | |
MGCP_CMD_CRCX | |
MGCP_CMD_MDCX | |
MGCP_CMD_DLCX | |
MGCP_CMD_RQNT | |
MGCP_CMD_NTFY | |
MGCP_CMD_AUEP | |
MGCP_CMD_AUCX | |
MGCP_CMD_RSIP |
Definition at line 143 of file chan_mgcp.c.
00143 { 00144 MGCP_CMD_EPCF, 00145 MGCP_CMD_CRCX, 00146 MGCP_CMD_MDCX, 00147 MGCP_CMD_DLCX, 00148 MGCP_CMD_RQNT, 00149 MGCP_CMD_NTFY, 00150 MGCP_CMD_AUEP, 00151 MGCP_CMD_AUCX, 00152 MGCP_CMD_RSIP 00153 };
static char* __get_header | ( | struct mgcp_request * | req, | |
char * | name, | |||
int * | start | |||
) | [static] |
Definition at line 1572 of file chan_mgcp.c.
References mgcp_request::header, mgcp_request::headers, and len.
Referenced by build_route(), copy_all_header(), copy_via_headers(), func_header_read(), get_header(), and handle_response_register().
01573 { 01574 int x; 01575 int len = strlen(name); 01576 char *r; 01577 for (x=*start;x<req->headers;x++) { 01578 if (!strncasecmp(req->header[x], name, len) && 01579 (req->header[x][len] == ':')) { 01580 r = req->header[x] + len + 1; 01581 while(*r && (*r < 33)) 01582 r++; 01583 *start = x+1; 01584 return r; 01585 } 01586 } 01587 /* Don't return NULL, so get_header is always a valid pointer */ 01588 return ""; 01589 }
static int __mgcp_xmit | ( | struct mgcp_gateway * | gw, | |
char * | data, | |||
int | len | |||
) | [static] |
Definition at line 491 of file chan_mgcp.c.
References mgcp_gateway::addr, ast_log(), mgcp_gateway::defaddr, errno, and LOG_WARNING.
Referenced by mgcp_postrequest(), resend_response(), retrans_pkt(), and send_response().
00492 { 00493 int res; 00494 if (gw->addr.sin_addr.s_addr) 00495 res=sendto(mgcpsock, data, len, 0, (struct sockaddr *)&gw->addr, sizeof(struct sockaddr_in)); 00496 else 00497 res=sendto(mgcpsock, data, len, 0, (struct sockaddr *)&gw->defaddr, sizeof(struct sockaddr_in)); 00498 if (res != len) { 00499 ast_log(LOG_WARNING, "mgcp_xmit returned %d: %s\n", res, strerror(errno)); 00500 } 00501 return res; 00502 }
static int add_header | ( | struct mgcp_request * | req, | |
char * | var, | |||
char * | value | |||
) | [static] |
Definition at line 1922 of file chan_mgcp.c.
References ast_log(), mgcp_request::data, mgcp_request::header, mgcp_request::headers, mgcp_request::len, mgcp_request::lines, LOG_WARNING, and MGCP_MAX_HEADERS.
Referenced by __transmit_response(), add_digit(), add_header_contentLength(), add_header_offhook(), add_route(), add_sdp(), add_t38_sdp(), add_text(), add_vidupdate(), append_date(), copy_all_header(), copy_header(), copy_via_headers(), initreqprep(), reqprep(), respprep(), sip_notify(), transmit_audit_endpoint(), transmit_connect_with_sdp(), transmit_connection_del(), transmit_connection_del_w_params(), transmit_invite(), transmit_modify_request(), transmit_modify_with_sdp(), transmit_notify_request(), transmit_notify_request_with_callerid(), transmit_notify_with_mwi(), transmit_notify_with_sipfrag(), transmit_refer(), transmit_register(), transmit_reinvite_with_sdp(), transmit_reinvite_with_t38_sdp(), transmit_request_with_auth(), transmit_response_with_allow(), transmit_response_with_auth(), transmit_response_with_unsupported(), and transmit_state_notify().
01923 { 01924 if (req->len >= sizeof(req->data) - 4) { 01925 ast_log(LOG_WARNING, "Out of space, can't add anymore\n"); 01926 return -1; 01927 } 01928 if (req->lines) { 01929 ast_log(LOG_WARNING, "Can't add more headers when lines have been added\n"); 01930 return -1; 01931 } 01932 req->header[req->headers] = req->data + req->len; 01933 snprintf(req->header[req->headers], sizeof(req->data) - req->len, "%s: %s\r\n", var, value); 01934 req->len += strlen(req->header[req->headers]); 01935 if (req->headers < MGCP_MAX_HEADERS) 01936 req->headers++; 01937 else { 01938 ast_log(LOG_WARNING, "Out of header space\n"); 01939 return -1; 01940 } 01941 return 0; 01942 }
static void add_header_offhook | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | resp | |||
) | [static] |
Definition at line 2323 of file chan_mgcp.c.
References ast_channel::_state, add_header(), AST_STATE_RINGING, mgcp_endpoint::dtmfmode, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, mgcp_subchannel::owner, mgcp_subchannel::parent, and mgcp_endpoint::sub.
Referenced by transmit_modify_request(), transmit_notify_request(), and transmit_notify_request_with_callerid().
02324 { 02325 struct mgcp_endpoint *p = sub->parent; 02326 02327 if (p && p->sub && p->sub->owner && p->sub->owner->_state >= AST_STATE_RINGING && (p->dtmfmode & (MGCP_DTMF_INBAND | MGCP_DTMF_HYBRID))) 02328 add_header(resp, "R", "L/hu(N),L/hf(N)"); 02329 else 02330 add_header(resp, "R", "L/hu(N),L/hf(N),D/[0-9#*](N)"); 02331 }
static int add_line | ( | struct mgcp_request * | req, | |
char * | line | |||
) | [static] |
Definition at line 1944 of file chan_mgcp.c.
References ast_log(), mgcp_request::data, mgcp_request::len, mgcp_request::line, mgcp_request::lines, LOG_WARNING, and MGCP_MAX_LINES.
Referenced by add_digit(), add_sdp(), add_t38_sdp(), add_text(), add_vidupdate(), transmit_notify_with_mwi(), transmit_notify_with_sipfrag(), and transmit_state_notify().
01945 { 01946 if (req->len >= sizeof(req->data) - 4) { 01947 ast_log(LOG_WARNING, "Out of space, can't add anymore\n"); 01948 return -1; 01949 } 01950 if (!req->lines) { 01951 /* Add extra empty return */ 01952 snprintf(req->data + req->len, sizeof(req->data) - req->len, "\r\n"); 01953 req->len += strlen(req->data + req->len); 01954 } 01955 req->line[req->lines] = req->data + req->len; 01956 snprintf(req->line[req->lines], sizeof(req->data) - req->len, "%s", line); 01957 req->len += strlen(req->line[req->lines]); 01958 if (req->lines < MGCP_MAX_LINES) 01959 req->lines++; 01960 else { 01961 ast_log(LOG_WARNING, "Out of line space\n"); 01962 return -1; 01963 } 01964 return 0; 01965 }
static int add_sdp | ( | struct mgcp_request * | resp, | |
struct mgcp_subchannel * | sub, | |||
struct ast_rtp * | rtp | |||
) | [static] |
Definition at line 2046 of file chan_mgcp.c.
References add_line(), AST_FORMAT_MAX_AUDIO, ast_inet_ntoa(), ast_log(), AST_RTP_DTMF, ast_rtp_get_peer(), ast_rtp_get_us(), ast_rtp_lookup_code(), ast_rtp_lookup_mime_subtype(), AST_RTP_MAX, ast_verbose(), mgcp_endpoint::capability, len, LOG_WARNING, mgcp_endpoint::nonCodecCapability, mgcp_gateway::ourip, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, s, t, and mgcp_subchannel::tmpdest.
Referenced by transmit_connect_with_sdp(), transmit_invite(), transmit_modify_with_sdp(), transmit_reinvite_with_sdp(), and transmit_response_with_sdp().
02047 { 02048 int len; 02049 int codec; 02050 char costr[80]; 02051 struct sockaddr_in sin; 02052 char v[256]; 02053 char s[256]; 02054 char o[256]; 02055 char c[256]; 02056 char t[256]; 02057 char m[256] = ""; 02058 char a[1024] = ""; 02059 int x; 02060 struct sockaddr_in dest; 02061 struct mgcp_endpoint *p = sub->parent; 02062 /* XXX We break with the "recommendation" and send our IP, in order that our 02063 peer doesn't have to ast_gethostbyname() us XXX */ 02064 len = 0; 02065 if (!sub->rtp) { 02066 ast_log(LOG_WARNING, "No way to add SDP without an RTP structure\n"); 02067 return -1; 02068 } 02069 ast_rtp_get_us(sub->rtp, &sin); 02070 if (rtp) { 02071 ast_rtp_get_peer(rtp, &dest); 02072 } else { 02073 if (sub->tmpdest.sin_addr.s_addr) { 02074 dest.sin_addr = sub->tmpdest.sin_addr; 02075 dest.sin_port = sub->tmpdest.sin_port; 02076 /* Reset temporary destination */ 02077 memset(&sub->tmpdest, 0, sizeof(sub->tmpdest)); 02078 } else { 02079 dest.sin_addr = p->parent->ourip; 02080 dest.sin_port = sin.sin_port; 02081 } 02082 } 02083 if (mgcpdebug) { 02084 ast_verbose("We're at %s port %d\n", ast_inet_ntoa(p->parent->ourip), ntohs(sin.sin_port)); 02085 } 02086 snprintf(v, sizeof(v), "v=0\r\n"); 02087 snprintf(o, sizeof(o), "o=root %d %d IN IP4 %s\r\n", (int)getpid(), (int)getpid(), ast_inet_ntoa(dest.sin_addr)); 02088 snprintf(s, sizeof(s), "s=session\r\n"); 02089 snprintf(c, sizeof(c), "c=IN IP4 %s\r\n", ast_inet_ntoa(dest.sin_addr)); 02090 snprintf(t, sizeof(t), "t=0 0\r\n"); 02091 snprintf(m, sizeof(m), "m=audio %d RTP/AVP", ntohs(dest.sin_port)); 02092 for (x = 1; x <= AST_FORMAT_MAX_AUDIO; x <<= 1) { 02093 if (p->capability & x) { 02094 if (mgcpdebug) { 02095 ast_verbose("Answering with capability %d\n", x); 02096 } 02097 codec = ast_rtp_lookup_code(sub->rtp, 1, x); 02098 if (codec > -1) { 02099 snprintf(costr, sizeof(costr), " %d", codec); 02100 strncat(m, costr, sizeof(m) - strlen(m) - 1); 02101 snprintf(costr, sizeof(costr), "a=rtpmap:%d %s/8000\r\n", codec, ast_rtp_lookup_mime_subtype(1, x, 0)); 02102 strncat(a, costr, sizeof(a) - strlen(a) - 1); 02103 } 02104 } 02105 } 02106 for (x = 1; x <= AST_RTP_MAX; x <<= 1) { 02107 if (p->nonCodecCapability & x) { 02108 if (mgcpdebug) { 02109 ast_verbose("Answering with non-codec capability %d\n", x); 02110 } 02111 codec = ast_rtp_lookup_code(sub->rtp, 0, x); 02112 if (codec > -1) { 02113 snprintf(costr, sizeof(costr), " %d", codec); 02114 strncat(m, costr, sizeof(m) - strlen(m) - 1); 02115 snprintf(costr, sizeof(costr), "a=rtpmap:%d %s/8000\r\n", codec, ast_rtp_lookup_mime_subtype(0, x, 0)); 02116 strncat(a, costr, sizeof(a) - strlen(a) - 1); 02117 if (x == AST_RTP_DTMF) { 02118 /* Indicate we support DTMF... Not sure about 16, 02119 but MSN supports it so dang it, we will too... */ 02120 snprintf(costr, sizeof costr, "a=fmtp:%d 0-16\r\n", codec); 02121 strncat(a, costr, sizeof(a) - strlen(a) - 1); 02122 } 02123 } 02124 } 02125 } 02126 strncat(m, "\r\n", sizeof(m) - strlen(m) - 1); 02127 len = strlen(v) + strlen(s) + strlen(o) + strlen(c) + strlen(t) + strlen(m) + strlen(a); 02128 snprintf(costr, sizeof(costr), "%d", len); 02129 add_line(resp, v); 02130 add_line(resp, o); 02131 add_line(resp, s); 02132 add_line(resp, c); 02133 add_line(resp, t); 02134 add_line(resp, m); 02135 add_line(resp, a); 02136 return 0; 02137 }
AST_MODULE_INFO | ( | ASTERISK_GPL_KEY | , | |
AST_MODFLAG_DEFAULT | , | |||
"Media Gateway Control Protocol (MGCP)" | , | |||
. | load = load_module , |
|||
. | unload = unload_module , |
|||
. | reload = reload | |||
) |
AST_MUTEX_DEFINE_STATIC | ( | gatelock | ) |
gatelock: mutex for gateway/endpoint lists
AST_MUTEX_DEFINE_STATIC | ( | mgcp_reload_lock | ) |
AST_MUTEX_DEFINE_STATIC | ( | monlock | ) |
AST_MUTEX_DEFINE_STATIC | ( | netlock | ) |
Protect the monitoring thread, so only one process can kill or start it, and not when it's doing something critical.
static int attempt_transfer | ( | struct mgcp_endpoint * | p | ) | [static] |
Definition at line 2915 of file chan_mgcp.c.
References ast_channel::_softhangup, ast_channel::_state, mgcp_subchannel::alreadygone, ast_bridged_channel(), ast_channel_masquerade(), AST_CONTROL_RINGING, AST_CONTROL_UNHOLD, ast_indicate(), ast_log(), ast_queue_control(), AST_SOFTHANGUP_DEV, AST_STATE_RINGING, ast_verbose(), mgcp_subchannel::id, LOG_DEBUG, LOG_WARNING, mgcp_queue_hangup(), mgcp_gateway::name, mgcp_endpoint::name, mgcp_subchannel::next, option_verbose, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_endpoint::sub, unalloc_sub(), and VERBOSE_PREFIX_3.
Referenced by handle_onhook_message(), handle_request(), handle_soft_key_event_message(), local_attended_transfer(), and zt_handle_event().
02916 { 02917 /* ************************* 02918 * I hope this works. 02919 * Copied out of chan_zap 02920 * Cross your fingers 02921 * *************************/ 02922 02923 /* In order to transfer, we need at least one of the channels to 02924 actually be in a call bridge. We can't conference two applications 02925 together (but then, why would we want to?) */ 02926 if (ast_bridged_channel(p->sub->owner)) { 02927 /* The three-way person we're about to transfer to could still be in MOH, so 02928 stop if now if appropriate */ 02929 if (ast_bridged_channel(p->sub->next->owner)) 02930 ast_queue_control(p->sub->next->owner, AST_CONTROL_UNHOLD); 02931 if (p->sub->owner->_state == AST_STATE_RINGING) { 02932 ast_indicate(ast_bridged_channel(p->sub->next->owner), AST_CONTROL_RINGING); 02933 } 02934 if (ast_channel_masquerade(p->sub->next->owner, ast_bridged_channel(p->sub->owner))) { 02935 ast_log(LOG_WARNING, "Unable to masquerade %s as %s\n", 02936 ast_bridged_channel(p->sub->owner)->name, p->sub->next->owner->name); 02937 return -1; 02938 } 02939 /* Orphan the channel */ 02940 unalloc_sub(p->sub->next); 02941 } else if (ast_bridged_channel(p->sub->next->owner)) { 02942 if (p->sub->owner->_state == AST_STATE_RINGING) { 02943 ast_indicate(ast_bridged_channel(p->sub->next->owner), AST_CONTROL_RINGING); 02944 } 02945 ast_queue_control(p->sub->next->owner, AST_CONTROL_UNHOLD); 02946 if (ast_channel_masquerade(p->sub->owner, ast_bridged_channel(p->sub->next->owner))) { 02947 ast_log(LOG_WARNING, "Unable to masquerade %s as %s\n", 02948 ast_bridged_channel(p->sub->next->owner)->name, p->sub->owner->name); 02949 return -1; 02950 } 02951 /*swap_subs(p, SUB_THREEWAY, SUB_REAL);*/ 02952 if (option_verbose > 2) { 02953 ast_verbose(VERBOSE_PREFIX_3 "Swapping %d for %d on %s@%s\n", p->sub->id, p->sub->next->id, p->name, p->parent->name); 02954 } 02955 p->sub = p->sub->next; 02956 unalloc_sub(p->sub->next); 02957 /* Tell the caller not to hangup */ 02958 return 1; 02959 } else { 02960 ast_log(LOG_DEBUG, "Neither %s nor %s are in a bridge, nothing to transfer\n", 02961 p->sub->owner->name, p->sub->next->owner->name); 02962 p->sub->next->owner->_softhangup |= AST_SOFTHANGUP_DEV; 02963 if (p->sub->next->owner) { 02964 p->sub->next->alreadygone = 1; 02965 mgcp_queue_hangup(p->sub->next); 02966 } 02967 } 02968 return 0; 02969 }
static struct mgcp_gateway* build_gateway | ( | char * | cat, | |
struct ast_variable * | v | |||
) | [static, read] |
build_gateway: parse mgcp.conf and create gateway/endpoint structures
Definition at line 3612 of file chan_mgcp.c.
References __ourip, mgcp_endpoint::accountcode, mgcp_gateway::addr, mgcp_endpoint::adsi, mgcp_endpoint::amaflags, ast_append_ha(), ast_callerid_split(), ast_cdr_amaflags2int(), ast_get_group(), ast_get_ip(), ast_log(), ast_mutex_destroy(), ast_mutex_init(), ast_ouraddrfor(), ast_random(), AST_SCHED_DEL, ast_strlen_zero(), ast_true(), ast_verbose(), mgcp_endpoint::callgroup, mgcp_endpoint::callreturn, mgcp_endpoint::callwaiting, mgcp_endpoint::cancallforward, mgcp_endpoint::canreinvite, CANREINVITE, mgcp_endpoint::capability, mgcp_endpoint::cid_name, mgcp_endpoint::cid_num, mgcp_endpoint::cmd_queue_lock, mgcp_endpoint::context, mgcp_subchannel::cx_queue_lock, mgcp_subchannel::cxmode, mgcp_gateway::defaddr, DEFAULT_MGCP_GW_PORT, mgcp_endpoint::delme, mgcp_gateway::delme, mgcp_endpoint::dtmfmode, mgcp_gateway::dynamic, mgcp_gateway::endpoints, mgcp_gateway::expire, free, gateways, mgcp_gateway::ha, mgcp_endpoint::hascallwaiting, mgcp_endpoint::hookstate, mgcp_subchannel::id, mgcp_endpoint::immediate, INADDR_NONE, mgcp_gateway::isnamedottedip, mgcp_endpoint::language, ast_variable::lineno, mgcp_subchannel::lock, mgcp_endpoint::lock, LOG_WARNING, mgcp_subchannel::magic, mgcp_endpoint::mailbox, malloc, MAX_SUBS, MGCP_CX_INACTIVE, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, MGCP_DTMF_RFC2833, MGCP_ONHOOK, MGCP_SUBCHANNEL_MAGIC, mgcp_gateway::msgs_lock, mgcp_endpoint::msgstate, mgcp_endpoint::musicclass, mgcp_endpoint::name, ast_variable::name, mgcp_gateway::name, mgcp_subchannel::nat, mgcp_endpoint::needaudit, ast_variable::next, mgcp_subchannel::next, mgcp_endpoint::next, mgcp_gateway::next, mgcp_endpoint::onhooktime, mgcp_gateway::ourip, mgcp_subchannel::parent, mgcp_endpoint::parent, mgcp_endpoint::pickupgroup, mgcp_gateway::retransid, mgcp_endpoint::rqnt_ident, mgcp_endpoint::rqnt_queue_lock, mgcp_subchannel::rtp, mgcp_endpoint::singlepath, mgcp_endpoint::slowsequence, mgcp_endpoint::sub, mgcp_endpoint::threewaycalling, mgcp_endpoint::transfer, mgcp_subchannel::txident, mgcp_endpoint::type, TYPE_LINE, TYPE_TRUNK, ast_variable::value, VERBOSE_PREFIX_3, and mgcp_gateway::wcardep.
Referenced by reload_config().
03613 { 03614 struct mgcp_gateway *gw; 03615 struct mgcp_endpoint *e; 03616 struct mgcp_subchannel *sub; 03617 /*char txident[80];*/ 03618 int i=0, y=0; 03619 int gw_reload = 0; 03620 int ep_reload = 0; 03621 canreinvite = CANREINVITE; 03622 03623 /* locate existing gateway */ 03624 gw = gateways; 03625 while (gw) { 03626 if (!strcasecmp(cat, gw->name)) { 03627 /* gateway already exists */ 03628 gw->delme = 0; 03629 gw_reload = 1; 03630 break; 03631 } 03632 gw = gw->next; 03633 } 03634 03635 if (!gw) 03636 gw = malloc(sizeof(struct mgcp_gateway)); 03637 03638 if (gw) { 03639 if (!gw_reload) { 03640 memset(gw, 0, sizeof(struct mgcp_gateway)); 03641 gw->expire = -1; 03642 gw->retransid = -1; /* SC */ 03643 ast_mutex_init(&gw->msgs_lock); 03644 ast_copy_string(gw->name, cat, sizeof(gw->name)); 03645 /* check if the name is numeric ip */ 03646 if ((strchr(gw->name, '.')) && inet_addr(gw->name) != INADDR_NONE) 03647 gw->isnamedottedip = 1; 03648 } 03649 while(v) { 03650 if (!strcasecmp(v->name, "host")) { 03651 if (!strcasecmp(v->value, "dynamic")) { 03652 /* They'll register with us */ 03653 gw->dynamic = 1; 03654 memset(&gw->addr.sin_addr, 0, 4); 03655 if (gw->addr.sin_port) { 03656 /* If we've already got a port, make it the default rather than absolute */ 03657 gw->defaddr.sin_port = gw->addr.sin_port; 03658 gw->addr.sin_port = 0; 03659 } 03660 } else { 03661 /* Non-dynamic. Make sure we become that way if we're not */ 03662 AST_SCHED_DEL(sched, gw->expire); 03663 gw->dynamic = 0; 03664 if (ast_get_ip(&gw->addr, v->value)) { 03665 if (!gw_reload) { 03666 ast_mutex_destroy(&gw->msgs_lock); 03667 free(gw); 03668 } 03669 return NULL; 03670 } 03671 } 03672 } else if (!strcasecmp(v->name, "defaultip")) { 03673 if (ast_get_ip(&gw->defaddr, v->value)) { 03674 if (!gw_reload) { 03675 ast_mutex_destroy(&gw->msgs_lock); 03676 free(gw); 03677 } 03678 return NULL; 03679 } 03680 } else if (!strcasecmp(v->name, "permit") || 03681 !strcasecmp(v->name, "deny")) { 03682 gw->ha = ast_append_ha(v->name, v->value, gw->ha); 03683 } else if (!strcasecmp(v->name, "port")) { 03684 gw->addr.sin_port = htons(atoi(v->value)); 03685 } else if (!strcasecmp(v->name, "context")) { 03686 ast_copy_string(context, v->value, sizeof(context)); 03687 } else if (!strcasecmp(v->name, "dtmfmode")) { 03688 if (!strcasecmp(v->value, "inband")) 03689 dtmfmode = MGCP_DTMF_INBAND; 03690 else if (!strcasecmp(v->value, "rfc2833")) 03691 dtmfmode = MGCP_DTMF_RFC2833; 03692 else if (!strcasecmp(v->value, "hybrid")) 03693 dtmfmode = MGCP_DTMF_HYBRID; 03694 else if (!strcasecmp(v->value, "none")) 03695 dtmfmode = 0; 03696 else 03697 ast_log(LOG_WARNING, "'%s' is not a valid DTMF mode at line %d\n", v->value, v->lineno); 03698 } else if (!strcasecmp(v->name, "nat")) { 03699 nat = ast_true(v->value); 03700 } else if (!strcasecmp(v->name, "callerid")) { 03701 if (!strcasecmp(v->value, "asreceived")) { 03702 cid_num[0] = '\0'; 03703 cid_name[0] = '\0'; 03704 } else { 03705 ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num)); 03706 } 03707 } else if (!strcasecmp(v->name, "language")) { 03708 ast_copy_string(language, v->value, sizeof(language)); 03709 } else if (!strcasecmp(v->name, "accountcode")) { 03710 ast_copy_string(accountcode, v->value, sizeof(accountcode)); 03711 } else if (!strcasecmp(v->name, "amaflags")) { 03712 y = ast_cdr_amaflags2int(v->value); 03713 if (y < 0) { 03714 ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno); 03715 } else { 03716 amaflags = y; 03717 } 03718 } else if (!strcasecmp(v->name, "musiconhold")) { 03719 ast_copy_string(musicclass, v->value, sizeof(musicclass)); 03720 } else if (!strcasecmp(v->name, "callgroup")) { 03721 cur_callergroup = ast_get_group(v->value); 03722 } else if (!strcasecmp(v->name, "pickupgroup")) { 03723 cur_pickupgroup = ast_get_group(v->value); 03724 } else if (!strcasecmp(v->name, "immediate")) { 03725 immediate = ast_true(v->value); 03726 } else if (!strcasecmp(v->name, "cancallforward")) { 03727 cancallforward = ast_true(v->value); 03728 } else if (!strcasecmp(v->name, "singlepath")) { 03729 singlepath = ast_true(v->value); 03730 } else if (!strcasecmp(v->name, "canreinvite")) { 03731 canreinvite = ast_true(v->value); 03732 } else if (!strcasecmp(v->name, "mailbox")) { 03733 ast_copy_string(mailbox, v->value, sizeof(mailbox)); 03734 } else if (!strcasecmp(v->name, "adsi")) { 03735 adsi = ast_true(v->value); 03736 } else if (!strcasecmp(v->name, "callreturn")) { 03737 callreturn = ast_true(v->value); 03738 } else if (!strcasecmp(v->name, "callwaiting")) { 03739 callwaiting = ast_true(v->value); 03740 } else if (!strcasecmp(v->name, "slowsequence")) { 03741 slowsequence = ast_true(v->value); 03742 } else if (!strcasecmp(v->name, "transfer")) { 03743 transfer = ast_true(v->value); 03744 } else if (!strcasecmp(v->name, "threewaycalling")) { 03745 threewaycalling = ast_true(v->value); 03746 } else if (!strcasecmp(v->name, "wcardep")) { 03747 /* locate existing endpoint */ 03748 e = gw->endpoints; 03749 while (e) { 03750 if (!strcasecmp(v->value, e->name)) { 03751 /* endpoint already exists */ 03752 e->delme = 0; 03753 ep_reload = 1; 03754 break; 03755 } 03756 e = e->next; 03757 } 03758 03759 if (!e) { 03760 /* Allocate wildcard endpoint */ 03761 e = malloc(sizeof(struct mgcp_endpoint)); 03762 ep_reload = 0; 03763 } 03764 03765 if (e) { 03766 if (!ep_reload) { 03767 memset(e, 0, sizeof(struct mgcp_endpoint)); 03768 ast_mutex_init(&e->lock); 03769 ast_mutex_init(&e->rqnt_queue_lock); 03770 ast_mutex_init(&e->cmd_queue_lock); 03771 ast_copy_string(e->name, v->value, sizeof(e->name)); 03772 e->needaudit = 1; 03773 } 03774 ast_copy_string(gw->wcardep, v->value, sizeof(gw->wcardep)); 03775 /* XXX Should we really check for uniqueness?? XXX */ 03776 ast_copy_string(e->accountcode, accountcode, sizeof(e->accountcode)); 03777 ast_copy_string(e->context, context, sizeof(e->context)); 03778 ast_copy_string(e->cid_num, cid_num, sizeof(e->cid_num)); 03779 ast_copy_string(e->cid_name, cid_name, sizeof(e->cid_name)); 03780 ast_copy_string(e->language, language, sizeof(e->language)); 03781 ast_copy_string(e->musicclass, musicclass, sizeof(e->musicclass)); 03782 ast_copy_string(e->mailbox, mailbox, sizeof(e->mailbox)); 03783 snprintf(e->rqnt_ident, sizeof(e->rqnt_ident), "%08lx", ast_random()); 03784 e->msgstate = -1; 03785 e->amaflags = amaflags; 03786 e->capability = capability; 03787 e->parent = gw; 03788 e->dtmfmode = dtmfmode; 03789 if (!ep_reload && e->sub && e->sub->rtp) 03790 e->dtmfmode |= MGCP_DTMF_INBAND; 03791 e->adsi = adsi; 03792 e->type = TYPE_LINE; 03793 e->immediate = immediate; 03794 e->callgroup=cur_callergroup; 03795 e->pickupgroup=cur_pickupgroup; 03796 e->callreturn = callreturn; 03797 e->cancallforward = cancallforward; 03798 e->singlepath = singlepath; 03799 e->canreinvite = canreinvite; 03800 e->callwaiting = callwaiting; 03801 e->hascallwaiting = callwaiting; 03802 e->slowsequence = slowsequence; 03803 e->transfer = transfer; 03804 e->threewaycalling = threewaycalling; 03805 e->onhooktime = time(NULL); 03806 /* ASSUME we're onhook */ 03807 e->hookstate = MGCP_ONHOOK; 03808 if (!ep_reload) { 03809 /*snprintf(txident, sizeof(txident), "%08lx", ast_random());*/ 03810 for (i = 0; i < MAX_SUBS; i++) { 03811 sub = malloc(sizeof(struct mgcp_subchannel)); 03812 if (sub) { 03813 ast_verbose(VERBOSE_PREFIX_3 "Allocating subchannel '%d' on %s@%s\n", i, e->name, gw->name); 03814 memset(sub, 0, sizeof(struct mgcp_subchannel)); 03815 ast_mutex_init(&sub->lock); 03816 ast_mutex_init(&sub->cx_queue_lock); 03817 sub->parent = e; 03818 sub->id = i; 03819 snprintf(sub->txident, sizeof(sub->txident), "%08lx", ast_random()); 03820 /*stnrcpy(sub->txident, txident, sizeof(sub->txident) - 1);*/ 03821 sub->cxmode = MGCP_CX_INACTIVE; 03822 sub->nat = nat; 03823 sub->next = e->sub; 03824 e->sub = sub; 03825 } else { 03826 /* XXX Should find a way to clean up our memory */ 03827 ast_log(LOG_WARNING, "Out of memory allocating subchannel\n"); 03828 return NULL; 03829 } 03830 } 03831 /* Make out subs a circular linked list so we can always sping through the whole bunch */ 03832 sub = e->sub; 03833 /* find the end of the list */ 03834 while(sub->next){ 03835 sub = sub->next; 03836 } 03837 /* set the last sub->next to the first sub */ 03838 sub->next = e->sub; 03839 03840 e->next = gw->endpoints; 03841 gw->endpoints = e; 03842 } 03843 } 03844 } else if (!strcasecmp(v->name, "trunk") || 03845 !strcasecmp(v->name, "line")) { 03846 03847 /* locate existing endpoint */ 03848 e = gw->endpoints; 03849 while (e) { 03850 if (!strcasecmp(v->value, e->name)) { 03851 /* endpoint already exists */ 03852 e->delme = 0; 03853 ep_reload = 1; 03854 break; 03855 } 03856 e = e->next; 03857 } 03858 03859 if (!e) { 03860 e = malloc(sizeof(struct mgcp_endpoint)); 03861 ep_reload = 0; 03862 } 03863 03864 if (e) { 03865 if (!ep_reload) { 03866 memset(e, 0, sizeof(struct mgcp_endpoint)); 03867 ast_mutex_init(&e->lock); 03868 ast_mutex_init(&e->rqnt_queue_lock); 03869 ast_mutex_init(&e->cmd_queue_lock); 03870 ast_copy_string(e->name, v->value, sizeof(e->name)); 03871 e->needaudit = 1; 03872 } 03873 /* XXX Should we really check for uniqueness?? XXX */ 03874 ast_copy_string(e->accountcode, accountcode, sizeof(e->accountcode)); 03875 ast_copy_string(e->context, context, sizeof(e->context)); 03876 ast_copy_string(e->cid_num, cid_num, sizeof(e->cid_num)); 03877 ast_copy_string(e->cid_name, cid_name, sizeof(e->cid_name)); 03878 ast_copy_string(e->language, language, sizeof(e->language)); 03879 ast_copy_string(e->musicclass, musicclass, sizeof(e->musicclass)); 03880 ast_copy_string(e->mailbox, mailbox, sizeof(e->mailbox)); 03881 if (!ast_strlen_zero(mailbox)) { 03882 ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n", mailbox, gw->name, e->name); 03883 } 03884 if (!ep_reload) { 03885 /* XXX potential issue due to reload */ 03886 e->msgstate = -1; 03887 e->parent = gw; 03888 } 03889 e->amaflags = amaflags; 03890 e->capability = capability; 03891 e->dtmfmode = dtmfmode; 03892 e->adsi = adsi; 03893 if (!strcasecmp(v->name, "trunk")) 03894 e->type = TYPE_TRUNK; 03895 else 03896 e->type = TYPE_LINE; 03897 03898 e->immediate = immediate; 03899 e->callgroup=cur_callergroup; 03900 e->pickupgroup=cur_pickupgroup; 03901 e->callreturn = callreturn; 03902 e->cancallforward = cancallforward; 03903 e->canreinvite = canreinvite; 03904 e->singlepath = singlepath; 03905 e->callwaiting = callwaiting; 03906 e->hascallwaiting = callwaiting; 03907 e->slowsequence = slowsequence; 03908 e->transfer = transfer; 03909 e->threewaycalling = threewaycalling; 03910 if (!ep_reload) { 03911 e->onhooktime = time(NULL); 03912 /* ASSUME we're onhook */ 03913 e->hookstate = MGCP_ONHOOK; 03914 snprintf(e->rqnt_ident, sizeof(e->rqnt_ident), "%08lx", ast_random()); 03915 } 03916 03917 for (i = 0, sub = NULL; i < MAX_SUBS; i++) { 03918 if (!ep_reload) { 03919 sub = malloc(sizeof(struct mgcp_subchannel)); 03920 } else { 03921 if (!sub) 03922 sub = e->sub; 03923 else 03924 sub = sub->next; 03925 } 03926 03927 if (sub) { 03928 if (!ep_reload) { 03929 ast_verbose(VERBOSE_PREFIX_3 "Allocating subchannel '%d' on %s@%s\n", i, e->name, gw->name); 03930 memset(sub, 0, sizeof(struct mgcp_subchannel)); 03931 ast_mutex_init(&sub->lock); 03932 ast_mutex_init(&sub->cx_queue_lock); 03933 ast_copy_string(sub->magic, MGCP_SUBCHANNEL_MAGIC, sizeof(sub->magic)); 03934 sub->parent = e; 03935 sub->id = i; 03936 snprintf(sub->txident, sizeof(sub->txident), "%08lx", ast_random()); 03937 sub->cxmode = MGCP_CX_INACTIVE; 03938 sub->next = e->sub; 03939 e->sub = sub; 03940 } 03941 sub->nat = nat; 03942 } else { 03943 /* XXX Should find a way to clean up our memory */ 03944 ast_log(LOG_WARNING, "Out of memory allocating subchannel\n"); 03945 return NULL; 03946 } 03947 } 03948 if (!ep_reload) { 03949 /* Make out subs a circular linked list so we can always sping through the whole bunch */ 03950 sub = e->sub; 03951 /* find the end of the list */ 03952 while (sub->next) { 03953 sub = sub->next; 03954 } 03955 /* set the last sub->next to the first sub */ 03956 sub->next = e->sub; 03957 03958 e->next = gw->endpoints; 03959 gw->endpoints = e; 03960 } 03961 } 03962 } else 03963 ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name, v->lineno); 03964 v = v->next; 03965 } 03966 } 03967 if (!ntohl(gw->addr.sin_addr.s_addr) && !gw->dynamic) { 03968 ast_log(LOG_WARNING, "Gateway '%s' lacks IP address and isn't dynamic\n", gw->name); 03969 if (!gw_reload) { 03970 ast_mutex_destroy(&gw->msgs_lock); 03971 free(gw); 03972 } 03973 return NULL; 03974 } 03975 gw->defaddr.sin_family = AF_INET; 03976 gw->addr.sin_family = AF_INET; 03977 if (gw->defaddr.sin_addr.s_addr && !ntohs(gw->defaddr.sin_port)) 03978 gw->defaddr.sin_port = htons(DEFAULT_MGCP_GW_PORT); 03979 if (gw->addr.sin_addr.s_addr && !ntohs(gw->addr.sin_port)) 03980 gw->addr.sin_port = htons(DEFAULT_MGCP_GW_PORT); 03981 if (gw->addr.sin_addr.s_addr) 03982 if (ast_ouraddrfor(&gw->addr.sin_addr, &gw->ourip)) 03983 memcpy(&gw->ourip, &__ourip, sizeof(gw->ourip)); 03984 03985 return (gw_reload ? NULL : gw); 03986 }
static char* control2str | ( | int | ind | ) | [static] |
Definition at line 1382 of file chan_mgcp.c.
References AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_TAKEOFFHOOK, and AST_CONTROL_WINK.
Referenced by mgcp_indicate(), and skinny_indicate().
01382 { 01383 switch (ind) { 01384 case AST_CONTROL_HANGUP: 01385 return "Other end has hungup"; 01386 case AST_CONTROL_RING: 01387 return "Local ring"; 01388 case AST_CONTROL_RINGING: 01389 return "Remote end is ringing"; 01390 case AST_CONTROL_ANSWER: 01391 return "Remote end has answered"; 01392 case AST_CONTROL_BUSY: 01393 return "Remote end is busy"; 01394 case AST_CONTROL_TAKEOFFHOOK: 01395 return "Make it go off hook"; 01396 case AST_CONTROL_OFFHOOK: 01397 return "Line is off hook"; 01398 case AST_CONTROL_CONGESTION: 01399 return "Congestion (circuits busy)"; 01400 case AST_CONTROL_FLASH: 01401 return "Flash hook"; 01402 case AST_CONTROL_WINK: 01403 return "Wink"; 01404 case AST_CONTROL_OPTION: 01405 return "Set a low-level option"; 01406 case AST_CONTROL_RADIO_KEY: 01407 return "Key Radio"; 01408 case AST_CONTROL_RADIO_UNKEY: 01409 return "Un-Key Radio"; 01410 } 01411 return "UNKNOWN"; 01412 }
static void destroy_endpoint | ( | struct mgcp_endpoint * | e | ) | [static] |
Definition at line 4021 of file chan_mgcp.c.
References ast_dsp_free(), ast_mutex_destroy(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_destroy(), ast_strlen_zero(), mgcp_endpoint::cmd_queue_lock, mgcp_subchannel::cxident, mgcp_endpoint::dsp, dump_cmd_queues(), dump_queue(), free, mgcp_endpoint::lock, mgcp_subchannel::lock, mgcp_subchannel::magic, MAX_SUBS, mgcp_queue_hangup(), mgcp_subchannel::next, mgcp_endpoint::parent, mgcp_endpoint::rqnt_queue_lock, mgcp_subchannel::rtp, s, mgcp_endpoint::sub, and transmit_connection_del().
Referenced by prune_gateways().
04022 { 04023 struct mgcp_subchannel *sub = e->sub->next, *s; 04024 int i; 04025 04026 for (i = 0; i < MAX_SUBS; i++) { 04027 ast_mutex_lock(&sub->lock); 04028 if (!ast_strlen_zero(sub->cxident)) { 04029 transmit_connection_del(sub); 04030 } 04031 if (sub->rtp) { 04032 ast_rtp_destroy(sub->rtp); 04033 sub->rtp = NULL; 04034 } 04035 memset(sub->magic, 0, sizeof(sub->magic)); 04036 mgcp_queue_hangup(sub); 04037 dump_cmd_queues(NULL, sub); 04038 ast_mutex_unlock(&sub->lock); 04039 sub = sub->next; 04040 } 04041 04042 if (e->dsp) { 04043 ast_dsp_free(e->dsp); 04044 } 04045 04046 dump_queue(e->parent, e); 04047 dump_cmd_queues(e, NULL); 04048 04049 sub = e->sub; 04050 for (i = 0; (i < MAX_SUBS) && sub; i++) { 04051 s = sub; 04052 sub = sub->next; 04053 ast_mutex_destroy(&s->lock); 04054 ast_mutex_destroy(&s->cx_queue_lock); 04055 free(s); 04056 } 04057 ast_mutex_destroy(&e->lock); 04058 ast_mutex_destroy(&e->rqnt_queue_lock); 04059 ast_mutex_destroy(&e->cmd_queue_lock); 04060 free(e); 04061 }
static void destroy_gateway | ( | struct mgcp_gateway * | g | ) | [static] |
Definition at line 4063 of file chan_mgcp.c.
References ast_free_ha(), dump_queue(), free, and mgcp_gateway::ha.
Referenced by prune_gateways().
04064 { 04065 if (g->ha) 04066 ast_free_ha(g->ha); 04067 04068 dump_queue(g, NULL); 04069 04070 free (g); 04071 }
static void* do_monitor | ( | void * | data | ) | [static] |
Definition at line 3441 of file chan_mgcp.c.
References ast_io_add(), AST_IO_IN, ast_io_wait(), ast_mutex_lock(), ast_mutex_unlock(), ast_sched_runq(), ast_sched_wait(), ast_verbose(), mgcp_gateway::endpoints, gateways, has_voicemail(), mgcp_do_reload(), MGCP_ONHOOK, mgcpsock_read(), option_verbose, transmit_notify_request(), TYPE_LINE, and VERBOSE_PREFIX_1.
03442 { 03443 int res; 03444 int reloading; 03445 /*struct mgcp_gateway *g;*/ 03446 /*struct mgcp_endpoint *e;*/ 03447 /*time_t thispass = 0, lastpass = 0;*/ 03448 03449 /* Add an I/O event to our UDP socket */ 03450 if (mgcpsock > -1) 03451 mgcpsock_read_id = ast_io_add(io, mgcpsock, mgcpsock_read, AST_IO_IN, NULL); 03452 03453 /* This thread monitors all the frame relay interfaces which are not yet in use 03454 (and thus do not have a separate thread) indefinitely */ 03455 /* From here on out, we die whenever asked */ 03456 for(;;) { 03457 /* Check for a reload request */ 03458 ast_mutex_lock(&mgcp_reload_lock); 03459 reloading = mgcp_reloading; 03460 mgcp_reloading = 0; 03461 ast_mutex_unlock(&mgcp_reload_lock); 03462 if (reloading) { 03463 if (option_verbose > 0) 03464 ast_verbose(VERBOSE_PREFIX_1 "Reloading MGCP\n"); 03465 mgcp_do_reload(); 03466 /* Add an I/O event to our UDP socket */ 03467 if (mgcpsock > -1) 03468 mgcpsock_read_id = ast_io_add(io, mgcpsock, mgcpsock_read, AST_IO_IN, NULL); 03469 } 03470 03471 /* Check for interfaces needing to be killed */ 03472 /* Don't let anybody kill us right away. Nobody should lock the interface list 03473 and wait for the monitor list, but the other way around is okay. */ 03474 ast_mutex_lock(&monlock); 03475 /* Lock the network interface */ 03476 ast_mutex_lock(&netlock); 03477 03478 #if 0 03479 /* XXX THIS IS COMPLETELY HOSED */ 03480 /* The gateway goes into a state of panic */ 03481 /* If the vmwi indicator is sent while it is reseting interfaces */ 03482 lastpass = thispass; 03483 thispass = time(NULL); 03484 g = gateways; 03485 while(g) { 03486 if (thispass != lastpass) { 03487 e = g->endpoints; 03488 while(e) { 03489 if (e->type == TYPE_LINE) { 03490 res = has_voicemail(e); 03491 if ((e->msgstate != res) && (e->hookstate == MGCP_ONHOOK) && (!e->rtp)){ 03492 if (res) { 03493 transmit_notify_request(e, "L/vmwi(+)"); 03494 } else { 03495 transmit_notify_request(e, "L/vmwi(-)"); 03496 } 03497 e->msgstate = res; 03498 e->onhooktime = thispass; 03499 } 03500 } 03501 e = e->next; 03502 } 03503 } 03504 g = g->next; 03505 } 03506 #endif 03507 /* Okay, now that we know what to do, release the network lock */ 03508 ast_mutex_unlock(&netlock); 03509 /* And from now on, we're okay to be killed, so release the monitor lock as well */ 03510 ast_mutex_unlock(&monlock); 03511 pthread_testcancel(); 03512 /* Wait for sched or io */ 03513 res = ast_sched_wait(sched); 03514 /* copied from chan_sip.c */ 03515 if ((res < 0) || (res > 1000)) 03516 res = 1000; 03517 res = ast_io_wait(io, res); 03518 ast_mutex_lock(&monlock); 03519 if (res >= 0) 03520 ast_sched_runq(sched); 03521 ast_mutex_unlock(&monlock); 03522 } 03523 /* Never reached */ 03524 return NULL; 03525 }
static void dump_cmd_queues | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub | |||
) | [static] |
dump_cmd_queues: (SC:) cleanup pending commands
Definition at line 2392 of file chan_mgcp.c.
References ast_mutex_lock(), ast_mutex_unlock(), mgcp_endpoint::cmd_queue, mgcp_endpoint::cmd_queue_lock, mgcp_subchannel::cx_queue, mgcp_subchannel::cx_queue_lock, free, mgcp_subchannel::next, mgcp_request::next, mgcp_endpoint::rqnt_queue, mgcp_endpoint::rqnt_queue_lock, mgcp_endpoint::sub, and t.
Referenced by destroy_endpoint(), handle_request(), handle_response(), and unalloc_sub().
02393 { 02394 struct mgcp_request *t, *q; 02395 02396 if (p) { 02397 ast_mutex_lock(&p->rqnt_queue_lock); 02398 for (q = p->rqnt_queue; q; t = q->next, free(q), q=t); 02399 p->rqnt_queue = NULL; 02400 ast_mutex_unlock(&p->rqnt_queue_lock); 02401 02402 ast_mutex_lock(&p->cmd_queue_lock); 02403 for (q = p->cmd_queue; q; t = q->next, free(q), q=t); 02404 p->cmd_queue = NULL; 02405 ast_mutex_unlock(&p->cmd_queue_lock); 02406 02407 ast_mutex_lock(&p->sub->cx_queue_lock); 02408 for (q = p->sub->cx_queue; q; t = q->next, free(q), q=t); 02409 p->sub->cx_queue = NULL; 02410 ast_mutex_unlock(&p->sub->cx_queue_lock); 02411 02412 ast_mutex_lock(&p->sub->next->cx_queue_lock); 02413 for (q = p->sub->next->cx_queue; q; t = q->next, free(q), q=t); 02414 p->sub->next->cx_queue = NULL; 02415 ast_mutex_unlock(&p->sub->next->cx_queue_lock); 02416 } else if (sub) { 02417 ast_mutex_lock(&sub->cx_queue_lock); 02418 for (q = sub->cx_queue; q; t = q->next, free(q), q=t); 02419 sub->cx_queue = NULL; 02420 ast_mutex_unlock(&sub->cx_queue_lock); 02421 } 02422 }
static void dump_queue | ( | struct mgcp_gateway * | gw, | |
struct mgcp_endpoint * | p | |||
) | [static] |
Definition at line 531 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), free, LOG_NOTICE, mgcp_gateway::msgs, mgcp_gateway::msgs_lock, mgcp_gateway::name, and mgcp_message::next.
Referenced by destroy_endpoint(), destroy_gateway(), and handle_request().
00532 { 00533 struct mgcp_message *cur, *q = NULL, *w, *prev; 00534 00535 ast_mutex_lock(&gw->msgs_lock); 00536 prev = NULL, cur = gw->msgs; 00537 while (cur) { 00538 if (!p || cur->owner_ep == p) { 00539 if (prev) 00540 prev->next = cur->next; 00541 else 00542 gw->msgs = cur->next; 00543 00544 ast_log(LOG_NOTICE, "Removing message from %s transaction %u\n", 00545 gw->name, cur->seqno); 00546 00547 w = cur; 00548 cur = cur->next; 00549 if (q) { 00550 w->next = q; 00551 } else { 00552 w->next = NULL; 00553 } 00554 q = w; 00555 } else { 00556 prev = cur, cur=cur->next; 00557 } 00558 } 00559 ast_mutex_unlock(&gw->msgs_lock); 00560 00561 while (q) { 00562 cur = q; 00563 q = q->next; 00564 free(cur); 00565 } 00566 }
static int find_and_retrans | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | req | |||
) | [static] |
Definition at line 3320 of file chan_mgcp.c.
References answer, free, mgcp_request::identifier, mgcp_response::next, mgcp_endpoint::parent, mgcp_subchannel::parent, resend_response(), RESPONSE_TIMEOUT, and mgcp_gateway::responses.
Referenced by mgcpsock_read().
03321 { 03322 int seqno=0; 03323 time_t now; 03324 struct mgcp_response *prev = NULL, *cur, *next, *answer=NULL; 03325 time(&now); 03326 if (sscanf(req->identifier, "%d", &seqno) != 1) 03327 seqno = 0; 03328 cur = sub->parent->parent->responses; 03329 while(cur) { 03330 next = cur->next; 03331 if (now - cur->whensent > RESPONSE_TIMEOUT) { 03332 /* Delete this entry */ 03333 if (prev) 03334 prev->next = next; 03335 else 03336 sub->parent->parent->responses = next; 03337 free(cur); 03338 } else { 03339 if (seqno == cur->seqno) 03340 answer = cur; 03341 prev = cur; 03342 } 03343 cur = next; 03344 } 03345 if (answer) { 03346 resend_response(sub, answer); 03347 return 1; 03348 } 03349 return 0; 03350 }
static struct mgcp_request* find_command | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub, | |||
struct mgcp_request ** | queue, | |||
ast_mutex_t * | l, | |||
int | ident | |||
) | [static, read] |
find_command: (SC:) remove command transaction from queue
Definition at line 2426 of file chan_mgcp.c.
References mgcp_gateway::addr, ast_inet_ntoa(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), mgcp_postrequest(), mgcp_request::next, and mgcp_endpoint::parent.
Referenced by agi_handle_command(), handle_response(), and handle_showagi().
02428 { 02429 struct mgcp_request *prev, *req; 02430 02431 ast_mutex_lock(l); 02432 for (prev = NULL, req = *queue; req; prev = req, req = req->next) { 02433 if (req->trid == ident) { 02434 /* remove from queue */ 02435 if (!prev) 02436 *queue = req->next; 02437 else 02438 prev->next = req->next; 02439 02440 /* send next pending command */ 02441 if (*queue) { 02442 if (mgcpdebug) { 02443 ast_verbose("Posting Queued Request:\n%s to %s:%d\n", (*queue)->data, 02444 ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 02445 } 02446 02447 mgcp_postrequest(p, sub, (*queue)->data, (*queue)->len, (*queue)->trid); 02448 } 02449 break; 02450 } 02451 } 02452 ast_mutex_unlock(l); 02453 return req; 02454 }
static struct mgcp_subchannel* find_subchannel_and_lock | ( | char * | name, | |
int | msgid, | |||
struct sockaddr_in * | sin | |||
) | [static, read] |
Definition at line 1619 of file chan_mgcp.c.
References __ourip, mgcp_gateway::addr, ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_ouraddrfor(), ast_verbose(), mgcp_gateway::defaddr, mgcp_gateway::dynamic, mgcp_gateway::endpoints, gateways, mgcp_subchannel::id, mgcp_subchannel::lock, LOG_DEBUG, LOG_NOTICE, mgcp_endpoint::name, mgcp_gateway::name, mgcp_endpoint::next, mgcp_subchannel::next, mgcp_gateway::next, option_debug, option_verbose, mgcp_gateway::ourip, mgcp_endpoint::sub, and VERBOSE_PREFIX_3.
Referenced by mgcp_request(), and mgcpsock_read().
01620 { 01621 struct mgcp_endpoint *p = NULL; 01622 struct mgcp_subchannel *sub = NULL; 01623 struct mgcp_gateway *g; 01624 char tmp[256] = ""; 01625 char *at = NULL, *c; 01626 int found = 0; 01627 if (name) { 01628 ast_copy_string(tmp, name, sizeof(tmp)); 01629 at = strchr(tmp, '@'); 01630 if (!at) { 01631 ast_log(LOG_NOTICE, "Endpoint '%s' has no at sign!\n", name); 01632 return NULL; 01633 } 01634 *at++ = '\0'; 01635 } 01636 ast_mutex_lock(&gatelock); 01637 if (at && (at[0] == '[')) { 01638 at++; 01639 c = strrchr(at, ']'); 01640 if (c) 01641 *c = '\0'; 01642 } 01643 g = gateways; 01644 while(g) { 01645 if ((!name || !strcasecmp(g->name, at)) && 01646 (sin || g->addr.sin_addr.s_addr || g->defaddr.sin_addr.s_addr)) { 01647 /* Found the gateway. If it's dynamic, save it's address -- now for the endpoint */ 01648 if (sin && g->dynamic && name) { 01649 if ((g->addr.sin_addr.s_addr != sin->sin_addr.s_addr) || 01650 (g->addr.sin_port != sin->sin_port)) { 01651 memcpy(&g->addr, sin, sizeof(g->addr)); 01652 if (ast_ouraddrfor(&g->addr.sin_addr, &g->ourip)) 01653 memcpy(&g->ourip, &__ourip, sizeof(g->ourip)); 01654 if (option_verbose > 2) 01655 ast_verbose(VERBOSE_PREFIX_3 "Registered MGCP gateway '%s' at %s port %d\n", g->name, ast_inet_ntoa(g->addr.sin_addr), ntohs(g->addr.sin_port)); 01656 } 01657 } 01658 /* not dynamic, check if the name matches */ 01659 else if (name) { 01660 if (strcasecmp(g->name, at)) { 01661 g = g->next; 01662 continue; 01663 } 01664 } 01665 /* not dynamic, no name, check if the addr matches */ 01666 else if (!name && sin) { 01667 if ((g->addr.sin_addr.s_addr != sin->sin_addr.s_addr) || 01668 (g->addr.sin_port != sin->sin_port)) { 01669 g = g->next; 01670 continue; 01671 } 01672 } else { 01673 g = g->next; 01674 continue; 01675 } 01676 /* SC */ 01677 p = g->endpoints; 01678 while(p) { 01679 if (option_debug) 01680 ast_log(LOG_DEBUG, "Searching on %s@%s for subchannel\n", 01681 p->name, g->name); 01682 if (msgid) { 01683 #if 0 /* new transport mech */ 01684 sub = p->sub; 01685 do { 01686 if (option_debug) 01687 ast_log(LOG_DEBUG, "Searching on %s@%s-%d for subchannel with lastout: %d\n", 01688 p->name, g->name, sub->id, msgid); 01689 if (sub->lastout == msgid) { 01690 if (option_debug) 01691 ast_log(LOG_DEBUG, "Found subchannel sub%d to handle request %d sub->lastout: %d\n", 01692 sub->id, msgid, sub->lastout); 01693 found = 1; 01694 break; 01695 } 01696 sub = sub->next; 01697 } while (sub != p->sub); 01698 if (found) { 01699 break; 01700 } 01701 #endif 01702 /* SC */ 01703 sub = p->sub; 01704 found = 1; 01705 /* SC */ 01706 break; 01707 } else if (name && !strcasecmp(p->name, tmp)) { 01708 ast_log(LOG_DEBUG, "Coundn't determine subchannel, assuming current master %s@%s-%d\n", 01709 p->name, g->name, p->sub->id); 01710 sub = p->sub; 01711 found = 1; 01712 break; 01713 } 01714 p = p->next; 01715 } 01716 if (sub && found) { 01717 ast_mutex_lock(&sub->lock); 01718 break; 01719 } 01720 } 01721 g = g->next; 01722 } 01723 ast_mutex_unlock(&gatelock); 01724 if (!sub) { 01725 if (name) { 01726 if (g) 01727 ast_log(LOG_NOTICE, "Endpoint '%s' not found on gateway '%s'\n", tmp, at); 01728 else 01729 ast_log(LOG_NOTICE, "Gateway '%s' (and thus its endpoint '%s') does not exist\n", at, tmp); 01730 } 01731 } 01732 return sub; 01733 }
static char* get_csv | ( | char * | c, | |
int * | len, | |||
char ** | next | |||
) | [static] |
get_csv: (SC:) get comma separated value
Definition at line 1598 of file chan_mgcp.c.
References s.
Referenced by handle_response().
01599 { 01600 char *s; 01601 01602 *next = NULL, *len = 0; 01603 if (!c) return NULL; 01604 01605 while (*c && (*c < 33 || *c == ',')) 01606 c++; 01607 01608 s = c; 01609 while (*c && (*c >= 33 && *c != ',')) 01610 c++, (*len)++; 01611 *next = c; 01612 01613 if (*len == 0) 01614 s = NULL, *next = NULL; 01615 01616 return s; 01617 }
static char* get_header | ( | struct mgcp_request * | req, | |
char * | name | |||
) | [static] |
Definition at line 1591 of file chan_mgcp.c.
References __get_header().
Referenced by __transmit_response(), build_route(), check_auth(), check_user_full(), check_via(), copy_header(), extract_uri(), find_call(), find_sdp(), get_also_info(), get_destination(), get_rdnis(), get_refer_info(), gettag(), handle_request(), handle_request_bye(), handle_request_info(), handle_request_invite(), handle_request_notify(), handle_request_register(), handle_request_subscribe(), handle_response(), handle_response_invite(), handle_response_refer(), handle_response_register(), parse_moved_contact(), parse_ok_contact(), parse_register_contact(), receive_message(), register_verify(), reply_digest(), reqprep(), respprep(), send_request(), send_response(), sip_sipredirect(), sipsock_read(), transmit_refer(), transmit_response_with_auth(), transmit_response_with_sdp(), transmit_response_with_t38_sdp(), and transmit_state_notify().
01592 { 01593 int start = 0; 01594 return __get_header(req, name, &start); 01595 }
static char* get_sdp | ( | struct mgcp_request * | req, | |
char * | name | |||
) | [static] |
Definition at line 1543 of file chan_mgcp.c.
References get_sdp_by_line(), len, mgcp_request::line, and mgcp_request::lines.
Referenced by process_sdp().
01544 { 01545 int x; 01546 int len = strlen(name); 01547 char *r; 01548 01549 for (x=0; x<req->lines; x++) { 01550 r = get_sdp_by_line(req->line[x], name, len); 01551 if (r[0] != '\0') return r; 01552 } 01553 return ""; 01554 }
static char* get_sdp_by_line | ( | char * | line, | |
char * | name, | |||
int | nameLen | |||
) | [static] |
Definition at line 1533 of file chan_mgcp.c.
Referenced by get_sdp(), and get_sdp_iterate().
01534 { 01535 if (strncasecmp(line, name, nameLen) == 0 && line[nameLen] == '=') { 01536 char* r = line + nameLen + 1; 01537 while (*r && (*r < 33)) ++r; 01538 return r; 01539 } 01540 return ""; 01541 }
static char* get_sdp_iterate | ( | int * | iterator, | |
struct mgcp_request * | req, | |||
char * | name | |||
) | [static] |
Definition at line 1561 of file chan_mgcp.c.
References get_sdp_by_line(), len, and mgcp_request::line.
Referenced by get_sdp(), and process_sdp().
01562 { 01563 int len = strlen(name); 01564 char *r; 01565 while (*iterator < req->lines) { 01566 r = get_sdp_by_line(req->line[(*iterator)++], name, len); 01567 if (r[0] != '\0') return r; 01568 } 01569 return ""; 01570 }
static void handle_hd_hf | ( | struct mgcp_subchannel * | sub, | |
char * | ev | |||
) | [static] |
Definition at line 2971 of file chan_mgcp.c.
References ast_bridged_channel(), AST_CONTROL_ANSWER, AST_CONTROL_UNHOLD, ast_hangup(), ast_log(), ast_pthread_create, ast_queue_control(), AST_STATE_DOWN, AST_STATE_RING, mgcp_subchannel::cxmode, errno, has_voicemail(), mgcp_endpoint::hookstate, mgcp_endpoint::immediate, LOG_WARNING, MGCP_CX_SENDRECV, mgcp_new(), MGCP_OFFHOOK, mgcp_queue_control(), mgcp_ss(), mgcp_gateway::name, mgcp_endpoint::name, mgcp_subchannel::outgoing, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, start_rtp(), t, transmit_modify_request(), and transmit_notify_request().
Referenced by handle_request().
02972 { 02973 struct mgcp_endpoint *p = sub->parent; 02974 struct ast_channel *c; 02975 pthread_t t; 02976 pthread_attr_t attr; 02977 pthread_attr_init(&attr); 02978 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); 02979 02980 /* Off hook / answer */ 02981 if (sub->outgoing) { 02982 /* Answered */ 02983 if (sub->owner) { 02984 if (ast_bridged_channel(sub->owner)) 02985 ast_queue_control(sub->owner, AST_CONTROL_UNHOLD); 02986 sub->cxmode = MGCP_CX_SENDRECV; 02987 if (!sub->rtp) { 02988 start_rtp(sub); 02989 } else { 02990 transmit_modify_request(sub); 02991 } 02992 /*transmit_notify_request(sub, "aw");*/ 02993 transmit_notify_request(sub, ""); 02994 mgcp_queue_control(sub, AST_CONTROL_ANSWER); 02995 } 02996 } else { 02997 /* Start switch */ 02998 /*sub->cxmode = MGCP_CX_SENDRECV;*/ 02999 if (!sub->owner) { 03000 if (!sub->rtp) { 03001 start_rtp(sub); 03002 } else { 03003 transmit_modify_request(sub); 03004 } 03005 if (p->immediate) { 03006 /* The channel is immediately up. Start right away */ 03007 #ifdef DLINK_BUGGY_FIRMWARE 03008 transmit_notify_request(sub, "rt"); 03009 #else 03010 transmit_notify_request(sub, "G/rt"); 03011 #endif 03012 c = mgcp_new(sub, AST_STATE_RING); 03013 if (!c) { 03014 ast_log(LOG_WARNING, "Unable to start PBX on channel %s@%s\n", p->name, p->parent->name); 03015 transmit_notify_request(sub, "G/cg"); 03016 ast_hangup(c); 03017 } 03018 } else { 03019 if (has_voicemail(p)) { 03020 transmit_notify_request(sub, "L/sl"); 03021 } else { 03022 transmit_notify_request(sub, "L/dl"); 03023 } 03024 c = mgcp_new(sub, AST_STATE_DOWN); 03025 if (c) { 03026 if (ast_pthread_create(&t, &attr, mgcp_ss, c)) { 03027 ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno)); 03028 ast_hangup(c); 03029 } 03030 } else { 03031 ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", p->name, p->parent->name); 03032 } 03033 } 03034 } else { 03035 if (p->hookstate == MGCP_OFFHOOK) { 03036 ast_log(LOG_WARNING, "Off hook, but already have owner on %s@%s\n", p->name, p->parent->name); 03037 } else { 03038 ast_log(LOG_WARNING, "On hook, but already have owner on %s@%s\n", p->name, p->parent->name); 03039 ast_log(LOG_WARNING, "If we're onhook why are we here trying to handle a hd or hf?\n"); 03040 } 03041 if (ast_bridged_channel(sub->owner)) 03042 ast_queue_control(sub->owner, AST_CONTROL_UNHOLD); 03043 sub->cxmode = MGCP_CX_SENDRECV; 03044 if (!sub->rtp) { 03045 start_rtp(sub); 03046 } else { 03047 transmit_modify_request(sub); 03048 } 03049 /*transmit_notify_request(sub, "aw");*/ 03050 transmit_notify_request(sub, ""); 03051 /*ast_queue_control(sub->owner, AST_CONTROL_ANSWER);*/ 03052 } 03053 } 03054 pthread_attr_destroy(&attr); 03055 }
static int handle_request | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | req, | |||
struct sockaddr_in * | sin | |||
) | [static] |
Definition at line 3057 of file chan_mgcp.c.
References ast_channel::_state, mgcp_subchannel::alreadygone, ast_bridged_channel(), AST_CONTROL_HOLD, AST_CONTROL_UNHOLD, AST_FRAME_DTMF, ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_queue_control(), AST_STATE_DOWN, AST_STATE_UP, ast_verbose(), attempt_transfer(), mgcp_endpoint::callwaiting, mgcp_endpoint::curtone, mgcp_subchannel::cxmode, mgcp_endpoint::dtmf_buf, dump_cmd_queues(), dump_queue(), mgcp_gateway::endpoints, ast_frame::frametype, get_header(), handle_hd_hf(), has_voicemail(), mgcp_endpoint::hascallwaiting, mgcp_endpoint::hidecallerid, mgcp_endpoint::hookstate, mgcp_subchannel::id, mgcp_subchannel::lock, LOG_DEBUG, LOG_NOTICE, LOG_WARNING, MGCP_CX_CONF, MGCP_CX_MUTE, MGCP_CX_RECVONLY, MGCP_CX_SENDRECV, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_queue_frame(), mgcp_queue_hangup(), mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::next, mgcp_subchannel::next, option_verbose, mgcp_subchannel::outgoing, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, s, ast_frame::src, mgcp_endpoint::sub, ast_frame::subclass, mgcp_endpoint::threewaycalling, mgcp_endpoint::transfer, transmit_audit_endpoint(), transmit_connection_del(), transmit_modify_request(), transmit_notify_request(), transmit_response(), mgcp_request::verb, VERBOSE_PREFIX_3, and mgcp_gateway::wcardep.
Referenced by mgcpsock_read(), and sipsock_read().
03058 { 03059 char *ev, *s; 03060 struct ast_frame f = { 0, }; 03061 struct mgcp_endpoint *p = sub->parent; 03062 struct mgcp_gateway *g = NULL; 03063 int res; 03064 03065 if (mgcpdebug) { 03066 ast_verbose("Handling request '%s' on %s@%s\n", req->verb, p->name, p->parent->name); 03067 } 03068 /* Clear out potential response */ 03069 if (!strcasecmp(req->verb, "RSIP")) { 03070 /* Test if this RSIP request is just a keepalive */ 03071 if(!strcasecmp( get_header(req, "RM"), "X-keepalive")) { 03072 if (option_verbose > 2) 03073 ast_verbose(VERBOSE_PREFIX_3 "Received keepalive request from %s@%s\n", p->name, p->parent->name); 03074 transmit_response(sub, "200", req, "OK"); 03075 } else { 03076 dump_queue(p->parent, p); 03077 dump_cmd_queues(p, NULL); 03078 03079 if (option_verbose > 2 && (strcmp(p->name, p->parent->wcardep) != 0)) { 03080 ast_verbose(VERBOSE_PREFIX_3 "Resetting interface %s@%s\n", p->name, p->parent->name); 03081 } 03082 /* For RSIP on wildcard we reset all endpoints */ 03083 if (!strcmp(p->name, p->parent->wcardep)) { 03084 /* Reset all endpoints */ 03085 struct mgcp_endpoint *tmp_ep; 03086 03087 g = p->parent; 03088 tmp_ep = g->endpoints; 03089 while (tmp_ep) { 03090 /*if ((strcmp(tmp_ep->name, "*") != 0) && (strcmp(tmp_ep->name, "aaln/" "*") != 0)) {*/ 03091 if (strcmp(tmp_ep->name, g->wcardep) != 0) { 03092 struct mgcp_subchannel *tmp_sub, *first_sub; 03093 if (option_verbose > 2) { 03094 ast_verbose(VERBOSE_PREFIX_3 "Resetting interface %s@%s\n", tmp_ep->name, p->parent->name); 03095 } 03096 03097 first_sub = tmp_ep->sub; 03098 tmp_sub = tmp_ep->sub; 03099 while (tmp_sub) { 03100 mgcp_queue_hangup(tmp_sub); 03101 tmp_sub = tmp_sub->next; 03102 if (tmp_sub == first_sub) 03103 break; 03104 } 03105 } 03106 tmp_ep = tmp_ep->next; 03107 } 03108 } else if (sub->owner) { 03109 mgcp_queue_hangup(sub); 03110 } 03111 transmit_response(sub, "200", req, "OK"); 03112 /* We dont send NTFY or AUEP to wildcard ep */ 03113 if (strcmp(p->name, p->parent->wcardep) != 0) { 03114 transmit_notify_request(sub, ""); 03115 /* Audit endpoint. 03116 Idea is to prevent lost lines due to race conditions 03117 */ 03118 transmit_audit_endpoint(p); 03119 } 03120 } 03121 } else if (!strcasecmp(req->verb, "NTFY")) { 03122 /* Acknowledge and be sure we keep looking for the same things */ 03123 transmit_response(sub, "200", req, "OK"); 03124 /* Notified of an event */ 03125 ev = get_header(req, "O"); 03126 s = strchr(ev, '/'); 03127 if (s) ev = s + 1; 03128 ast_log(LOG_DEBUG, "Endpoint '%s@%s-%d' observed '%s'\n", p->name, p->parent->name, sub->id, ev); 03129 /* Keep looking for events unless this was a hangup */ 03130 if (strcasecmp(ev, "hu") && strcasecmp(ev, "hd") && strcasecmp(ev, "ping")) { 03131 transmit_notify_request(sub, p->curtone); 03132 } 03133 if (!strcasecmp(ev, "hd")) { 03134 p->hookstate = MGCP_OFFHOOK; 03135 sub->cxmode = MGCP_CX_SENDRECV; 03136 handle_hd_hf(sub, ev); 03137 } else if (!strcasecmp(ev, "hf")) { 03138 /* We can assume we are offhook if we received a hookflash */ 03139 /* First let's just do call wait and ignore threeway */ 03140 /* We're currently in charge */ 03141 if (p->hookstate != MGCP_OFFHOOK) { 03142 /* Cisco c7940 sends hf even if the phone is onhook */ 03143 /* Thanks to point on IRC for pointing this out */ 03144 return -1; 03145 } 03146 /* do not let * conference two down channels */ 03147 if (sub->owner && sub->owner->_state == AST_STATE_DOWN && !sub->next->owner) 03148 return -1; 03149 03150 if (p->callwaiting || p->transfer || p->threewaycalling) { 03151 if (option_verbose > 2) { 03152 ast_verbose(VERBOSE_PREFIX_3 "Swapping %d for %d on %s@%s\n", p->sub->id, p->sub->next->id, p->name, p->parent->name); 03153 } 03154 p->sub = p->sub->next; 03155 03156 /* transfer control to our next subchannel */ 03157 if (!sub->next->owner) { 03158 /* plave the first call on hold and start up a new call */ 03159 sub->cxmode = MGCP_CX_MUTE; 03160 if (option_verbose > 2) { 03161 ast_verbose(VERBOSE_PREFIX_3 "MGCP Muting %d on %s@%s\n", sub->id, p->name, p->parent->name); 03162 } 03163 transmit_modify_request(sub); 03164 if (sub->owner && ast_bridged_channel(sub->owner)) 03165 ast_queue_control(sub->owner, AST_CONTROL_HOLD); 03166 sub->next->cxmode = MGCP_CX_RECVONLY; 03167 handle_hd_hf(sub->next, ev); 03168 } else if (sub->owner && sub->next->owner) { 03169 /* We've got two active calls lets decide whether or not to conference or just flip flop */ 03170 if ((!sub->outgoing) && (!sub->next->outgoing)) { 03171 /* We made both calls lets conferenct */ 03172 if (option_verbose > 2) { 03173 ast_verbose(VERBOSE_PREFIX_3 "MGCP Conferencing %d and %d on %s@%s\n", 03174 sub->id, sub->next->id, p->name, p->parent->name); 03175 } 03176 sub->cxmode = MGCP_CX_CONF; 03177 sub->next->cxmode = MGCP_CX_CONF; 03178 if (ast_bridged_channel(sub->next->owner)) 03179 ast_queue_control(sub->next->owner, AST_CONTROL_UNHOLD); 03180 transmit_modify_request(sub); 03181 transmit_modify_request(sub->next); 03182 } else { 03183 /* Let's flipflop between calls */ 03184 /* XXX Need to check for state up ??? */ 03185 /* XXX Need a way to indicate the current call, or maybe the call that's waiting */ 03186 if (option_verbose > 2) { 03187 ast_verbose(VERBOSE_PREFIX_3 "We didn't make one of the calls FLIPFLOP %d and %d on %s@%s\n", 03188 sub->id, sub->next->id, p->name, p->parent->name); 03189 } 03190 sub->cxmode = MGCP_CX_MUTE; 03191 if (option_verbose > 2) { 03192 ast_verbose(VERBOSE_PREFIX_3 "MGCP Muting %d on %s@%s\n", sub->id, p->name, p->parent->name); 03193 } 03194 transmit_modify_request(sub); 03195 if (ast_bridged_channel(sub->owner)) 03196 ast_queue_control(sub->owner, AST_CONTROL_HOLD); 03197 03198 if (ast_bridged_channel(sub->next->owner)) 03199 ast_queue_control(sub->next->owner, AST_CONTROL_HOLD); 03200 03201 handle_hd_hf(sub->next, ev); 03202 } 03203 } else { 03204 /* We've most likely lost one of our calls find an active call and bring it up */ 03205 if (sub->owner) { 03206 p->sub = sub; 03207 } else if (sub->next->owner) { 03208 p->sub = sub->next; 03209 } else { 03210 /* We seem to have lost both our calls */ 03211 /* XXX - What do we do now? */ 03212 return -1; 03213 } 03214 if (ast_bridged_channel(p->sub->owner)) 03215 ast_queue_control(p->sub->owner, AST_CONTROL_UNHOLD); 03216 p->sub->cxmode = MGCP_CX_SENDRECV; 03217 transmit_modify_request(p->sub); 03218 } 03219 } else { 03220 ast_log(LOG_WARNING, "Callwaiting, call transfer or threeway calling not enabled on endpoint %s@%s\n", 03221 p->name, p->parent->name); 03222 } 03223 } else if (!strcasecmp(ev, "hu")) { 03224 p->hookstate = MGCP_ONHOOK; 03225 sub->cxmode = MGCP_CX_RECVONLY; 03226 ast_log(LOG_DEBUG, "MGCP %s@%s Went on hook\n", p->name, p->parent->name); 03227 /* Do we need to send MDCX before a DLCX ? 03228 if (sub->rtp) { 03229 transmit_modify_request(sub); 03230 } 03231 */ 03232 if (p->transfer && (sub->owner && sub->next->owner) && ((!sub->outgoing) || (!sub->next->outgoing))) { 03233 /* We're allowed to transfer, we have two avtive calls and */ 03234 /* we made at least one of the calls. Let's try and transfer */ 03235 ast_mutex_lock(&p->sub->next->lock); 03236 res = attempt_transfer(p); 03237 if (res < 0) { 03238 if (p->sub->next->owner) { 03239 sub->next->alreadygone = 1; 03240 mgcp_queue_hangup(sub->next); 03241 } 03242 } else if (res) { 03243 ast_log(LOG_WARNING, "Transfer attempt failed\n"); 03244 ast_mutex_unlock(&p->sub->next->lock); 03245 return -1; 03246 } 03247 ast_mutex_unlock(&p->sub->next->lock); 03248 } else { 03249 /* Hangup the current call */ 03250 /* If there is another active call, mgcp_hangup will ring the phone with the other call */ 03251 if (sub->owner) { 03252 sub->alreadygone = 1; 03253 mgcp_queue_hangup(sub); 03254 } else { 03255 /* verbose level check */ 03256 if (option_verbose > 2) { 03257 ast_verbose(VERBOSE_PREFIX_3 "MGCP handle_request(%s@%s-%d) ast_channel already destroyed, resending DLCX.\n", 03258 p->name, p->parent->name, sub->id); 03259 } 03260 /* Instruct the other side to remove the connection since it apparently * 03261 * still thinks the channel is active. * 03262 * For Cisco IAD2421 /BAK/ */ 03263 transmit_connection_del(sub); 03264 } 03265 } 03266 if ((p->hookstate == MGCP_ONHOOK) && (!sub->rtp) && (!sub->next->rtp)) { 03267 p->hidecallerid = 0; 03268 if (p->hascallwaiting && !p->callwaiting) { 03269 if (option_verbose > 2) 03270 ast_verbose(VERBOSE_PREFIX_3 "Enabling call waiting on MGCP/%s@%s-%d\n", p->name, p->parent->name, sub->id); 03271 p->callwaiting = -1; 03272 } 03273 if (has_voicemail(p)) { 03274 if (option_verbose > 2) { 03275 ast_verbose(VERBOSE_PREFIX_3 "MGCP handle_request(%s@%s) set vmwi(+)\n", p->name, p->parent->name); 03276 } 03277 transmit_notify_request(sub, "L/vmwi(+)"); 03278 } else { 03279 if (option_verbose > 2) { 03280 ast_verbose(VERBOSE_PREFIX_3 "MGCP handle_request(%s@%s) set vmwi(-)\n", p->name, p->parent->name); 03281 } 03282 transmit_notify_request(sub, "L/vmwi(-)"); 03283 } 03284 } 03285 } else if ((strlen(ev) == 1) && 03286 (((ev[0] >= '0') && (ev[0] <= '9')) || 03287 ((ev[0] >= 'A') && (ev[0] <= 'D')) || 03288 (ev[0] == '*') || (ev[0] == '#'))) { 03289 if (sub && sub->owner && (sub->owner->_state >= AST_STATE_UP)) { 03290 f.frametype = AST_FRAME_DTMF; 03291 f.subclass = ev[0]; 03292 f.src = "mgcp"; 03293 /* XXX MUST queue this frame to all subs in threeway call if threeway call is active */ 03294 mgcp_queue_frame(sub, &f); 03295 ast_mutex_lock(&sub->next->lock); 03296 if (sub->next->owner) 03297 mgcp_queue_frame(sub->next, &f); 03298 ast_mutex_unlock(&sub->next->lock); 03299 if (strstr(p->curtone, "wt") && (ev[0] == 'A')) { 03300 memset(p->curtone, 0, sizeof(p->curtone)); 03301 } 03302 } else { 03303 p->dtmf_buf[strlen(p->dtmf_buf)] = ev[0]; 03304 p->dtmf_buf[strlen(p->dtmf_buf)] = '\0'; 03305 } 03306 } else if (!strcasecmp(ev, "T")) { 03307 /* Digit timeout -- unimportant */ 03308 } else if (!strcasecmp(ev, "ping")) { 03309 /* ping -- unimportant */ 03310 } else { 03311 ast_log(LOG_NOTICE, "Received unknown event '%s' from %s@%s\n", ev, p->name, p->parent->name); 03312 } 03313 } else { 03314 ast_log(LOG_WARNING, "Unknown verb '%s' received from %s\n", req->verb, ast_inet_ntoa(sin->sin_addr)); 03315 transmit_response(sub, "510", req, "Unknown verb"); 03316 } 03317 return 0; 03318 }
static void handle_response | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub, | |||
int | result, | |||
unsigned int | ident, | |||
struct mgcp_request * | resp | |||
) | [static] |
Definition at line 2457 of file chan_mgcp.c.
References ast_log(), ast_strlen_zero(), ast_verbose(), mgcp_request::cmd, mgcp_endpoint::cmd_queue, mgcp_endpoint::cmd_queue_lock, mgcp_subchannel::cx_queue, mgcp_subchannel::cx_queue_lock, mgcp_subchannel::cxident, dump_cmd_queues(), find_command(), free, get_csv(), get_header(), mgcp_endpoint::hookstate, mgcp_subchannel::id, len, mgcp_request::lines, LOG_NOTICE, LOG_WARNING, MGCP_CMD_AUEP, MGCP_CMD_CRCX, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_queue_hangup(), mgcp_endpoint::name, mgcp_gateway::name, mgcp_subchannel::next, option_verbose, mgcp_subchannel::owner, mgcp_endpoint::parent, process_sdp(), mgcp_endpoint::rqnt_queue, mgcp_endpoint::rqnt_queue_lock, mgcp_subchannel::rtp, mgcp_endpoint::slowsequence, start_rtp(), mgcp_endpoint::sub, mgcp_subchannel::tmpdest, transmit_connection_del(), transmit_connection_del_w_params(), transmit_modify_with_sdp(), transmit_notify_request(), and VERBOSE_PREFIX_3.
Referenced by handle_request(), mgcpsock_read(), and retrans_pkt().
02459 { 02460 char *c; 02461 struct mgcp_request *req; 02462 struct mgcp_gateway *gw = p->parent; 02463 02464 if (result < 200) { 02465 /* provisional response */ 02466 return; 02467 } 02468 02469 if (p->slowsequence) 02470 req = find_command(p, sub, &p->cmd_queue, &p->cmd_queue_lock, ident); 02471 else if (sub) 02472 req = find_command(p, sub, &sub->cx_queue, &sub->cx_queue_lock, ident); 02473 else if (!(req = find_command(p, sub, &p->rqnt_queue, &p->rqnt_queue_lock, ident))) 02474 req = find_command(p, sub, &p->cmd_queue, &p->cmd_queue_lock, ident); 02475 02476 if (!req) { 02477 if (option_verbose > 2) { 02478 ast_verbose(VERBOSE_PREFIX_3 "No command found on [%s] for transaction %d. Ignoring...\n", 02479 gw->name, ident); 02480 } 02481 return; 02482 } 02483 02484 if (p && (result >= 400) && (result <= 599)) { 02485 switch (result) { 02486 case 401: 02487 p->hookstate = MGCP_OFFHOOK; 02488 break; 02489 case 402: 02490 p->hookstate = MGCP_ONHOOK; 02491 break; 02492 case 406: 02493 ast_log(LOG_NOTICE, "Transaction %d timed out\n", ident); 02494 break; 02495 case 407: 02496 ast_log(LOG_NOTICE, "Transaction %d aborted\n", ident); 02497 break; 02498 } 02499 if (sub) { 02500 if (sub->owner) { 02501 ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s-%d\n", 02502 result, p->name, p->parent->name, sub ? sub->id:-1); 02503 mgcp_queue_hangup(sub); 02504 } 02505 } else { 02506 if (p->sub->next->owner) { 02507 ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s-%d\n", 02508 result, p->name, p->parent->name, sub ? sub->id:-1); 02509 mgcp_queue_hangup(p->sub); 02510 } 02511 02512 if (p->sub->owner) { 02513 ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s-%d\n", 02514 result, p->name, p->parent->name, sub ? sub->id:-1); 02515 mgcp_queue_hangup(p->sub); 02516 } 02517 02518 dump_cmd_queues(p, NULL); 02519 } 02520 } 02521 02522 if (resp) { 02523 if (req->cmd == MGCP_CMD_CRCX) { 02524 if ((c = get_header(resp, "I"))) { 02525 if (!ast_strlen_zero(c) && sub) { 02526 /* if we are hanging up do not process this conn. */ 02527 if (sub->owner) { 02528 if (!ast_strlen_zero(sub->cxident)) { 02529 if (strcasecmp(c, sub->cxident)) { 02530 ast_log(LOG_WARNING, "Subchannel already has a cxident. sub->cxident: %s requested %s\n", sub->cxident, c); 02531 } 02532 } 02533 ast_copy_string(sub->cxident, c, sizeof(sub->cxident)); 02534 if (sub->tmpdest.sin_addr.s_addr) { 02535 transmit_modify_with_sdp(sub, NULL, 0); 02536 } 02537 } else { 02538 /* XXX delete this one 02539 callid and conn id may already be lost. 02540 so the following del conn may have a side effect of 02541 cleaning up the next subchannel */ 02542 transmit_connection_del(sub); 02543 } 02544 } 02545 } 02546 } 02547 02548 if (req->cmd == MGCP_CMD_AUEP) { 02549 /* check stale connection ids */ 02550 if ((c = get_header(resp, "I"))) { 02551 char *v, *n; 02552 int len; 02553 while ((v = get_csv(c, &len, &n))) { 02554 if (len) { 02555 if (strncasecmp(v, p->sub->cxident, len) && 02556 strncasecmp(v, p->sub->next->cxident, len)) { 02557 /* connection id not found. delete it */ 02558 char cxident[80] = ""; 02559 02560 if (len > (sizeof(cxident) - 1)) 02561 len = sizeof(cxident) - 1; 02562 ast_copy_string(cxident, v, len); 02563 if (option_verbose > 2) { 02564 ast_verbose(VERBOSE_PREFIX_3 "Non existing connection id %s on %s@%s \n", 02565 cxident, p->name, gw->name); 02566 } 02567 transmit_connection_del_w_params(p, NULL, cxident); 02568 } 02569 } 02570 c = n; 02571 } 02572 } 02573 02574 /* Try to determine the hookstate returned from an audit endpoint command */ 02575 if ((c = get_header(resp, "ES"))) { 02576 if (!ast_strlen_zero(c)) { 02577 if (strstr(c, "hu")) { 02578 if (p->hookstate != MGCP_ONHOOK) { 02579 /* XXX cleanup if we think we are offhook XXX */ 02580 if ((p->sub->owner || p->sub->next->owner ) && 02581 p->hookstate == MGCP_OFFHOOK) 02582 mgcp_queue_hangup(sub); 02583 p->hookstate = MGCP_ONHOOK; 02584 02585 /* update the requested events according to the new hookstate */ 02586 transmit_notify_request(p->sub, ""); 02587 02588 /* verbose level check */ 02589 if (option_verbose > 2) { 02590 ast_verbose(VERBOSE_PREFIX_3 "Setting hookstate of %s@%s to ONHOOK\n", p->name, gw->name); 02591 } 02592 } 02593 } else if (strstr(c, "hd")) { 02594 if (p->hookstate != MGCP_OFFHOOK) { 02595 p->hookstate = MGCP_OFFHOOK; 02596 02597 /* update the requested events according to the new hookstate */ 02598 transmit_notify_request(p->sub, ""); 02599 02600 /* verbose level check */ 02601 if (option_verbose > 2) { 02602 ast_verbose(VERBOSE_PREFIX_3 "Setting hookstate of %s@%s to OFFHOOK\n", p->name, gw->name); 02603 } 02604 } 02605 } 02606 } 02607 } 02608 } 02609 02610 if (resp && resp->lines) { 02611 /* do not process sdp if we are hanging up. this may be a late response */ 02612 if (sub && sub->owner) { 02613 if (!sub->rtp) 02614 start_rtp(sub); 02615 if (sub->rtp) 02616 process_sdp(sub, resp); 02617 } 02618 } 02619 } 02620 02621 free(req); 02622 }
static int has_voicemail | ( | struct mgcp_endpoint * | p | ) | [static] |
Definition at line 458 of file chan_mgcp.c.
References ast_app_has_voicemail(), and mgcp_endpoint::mailbox.
Referenced by do_monitor(), handle_hd_hf(), handle_init_event(), handle_request(), load_module(), mgcp_hangup(), mgcp_request(), vm_execmain(), and zt_handle_event().
00459 { 00460 return ast_app_has_voicemail(p->mailbox, NULL); 00461 }
static int init_req | ( | struct mgcp_endpoint * | p, | |
struct mgcp_request * | req, | |||
char * | verb | |||
) | [static] |
Definition at line 1984 of file chan_mgcp.c.
References ast_log(), mgcp_request::data, mgcp_request::header, mgcp_request::headers, mgcp_gateway::isnamedottedip, mgcp_request::len, LOG_WARNING, MGCP_MAX_HEADERS, mgcp_gateway::name, mgcp_endpoint::name, and mgcp_endpoint::parent.
Referenced by initreqprep(), reqprep(), and transmit_register().
01985 { 01986 /* Initialize a response */ 01987 if (req->headers || req->len) { 01988 ast_log(LOG_WARNING, "Request already initialized?!?\n"); 01989 return -1; 01990 } 01991 req->header[req->headers] = req->data + req->len; 01992 /* check if we need brackets around the gw name */ 01993 if (p->parent->isnamedottedip) 01994 snprintf(req->header[req->headers], sizeof(req->data) - req->len, "%s %d %s@[%s] MGCP 1.0\r\n", verb, oseq, p->name, p->parent->name); 01995 else 01996 snprintf(req->header[req->headers], sizeof(req->data) - req->len, "%s %d %s@%s MGCP 1.0\r\n", verb, oseq, p->name, p->parent->name); 01997 req->len += strlen(req->header[req->headers]); 01998 if (req->headers < MGCP_MAX_HEADERS) 01999 req->headers++; 02000 else 02001 ast_log(LOG_WARNING, "Out of header space\n"); 02002 return 0; 02003 }
static int init_resp | ( | struct mgcp_request * | req, | |
char * | resp, | |||
struct mgcp_request * | orig, | |||
char * | resprest | |||
) | [static] |
Definition at line 1967 of file chan_mgcp.c.
References ast_log(), mgcp_request::data, mgcp_request::header, mgcp_request::headers, mgcp_request::identifier, mgcp_request::len, LOG_WARNING, and MGCP_MAX_HEADERS.
Referenced by respprep().
01968 { 01969 /* Initialize a response */ 01970 if (req->headers || req->len) { 01971 ast_log(LOG_WARNING, "Request already initialized?!?\n"); 01972 return -1; 01973 } 01974 req->header[req->headers] = req->data + req->len; 01975 snprintf(req->header[req->headers], sizeof(req->data) - req->len, "%s %s %s\r\n", resp, orig->identifier, resprest); 01976 req->len += strlen(req->header[req->headers]); 01977 if (req->headers < MGCP_MAX_HEADERS) 01978 req->headers++; 01979 else 01980 ast_log(LOG_WARNING, "Out of header space\n"); 01981 return 0; 01982 }
static int load_module | ( | void | ) | [static] |
load_module: PBX load module - initialization ---
Definition at line 4298 of file chan_mgcp.c.
References ast_channel_register(), ast_cli_register_multiple(), ast_log(), AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_rtp_proto_register(), io_context_create(), io_context_destroy(), LOG_ERROR, LOG_WARNING, reload_config(), restart_monitor(), sched_context_create(), and sched_context_destroy().
04299 { 04300 if (!(sched = sched_context_create())) { 04301 ast_log(LOG_WARNING, "Unable to create schedule context\n"); 04302 return AST_MODULE_LOAD_FAILURE; 04303 } 04304 04305 if (!(io = io_context_create())) { 04306 ast_log(LOG_WARNING, "Unable to create I/O context\n"); 04307 sched_context_destroy(sched); 04308 return AST_MODULE_LOAD_FAILURE; 04309 } 04310 04311 if (reload_config()) 04312 return AST_MODULE_LOAD_DECLINE; 04313 04314 /* Make sure we can register our mgcp channel type */ 04315 if (ast_channel_register(&mgcp_tech)) { 04316 ast_log(LOG_ERROR, "Unable to register channel class 'MGCP'\n"); 04317 io_context_destroy(io); 04318 sched_context_destroy(sched); 04319 return AST_MODULE_LOAD_FAILURE; 04320 } 04321 04322 ast_rtp_proto_register(&mgcp_rtp); 04323 ast_cli_register_multiple(cli_mgcp, sizeof(cli_mgcp) / sizeof(struct ast_cli_entry)); 04324 04325 /* And start the monitor for the first time */ 04326 restart_monitor(); 04327 04328 return AST_MODULE_LOAD_SUCCESS; 04329 }
static int mgcp_answer | ( | struct ast_channel * | ast | ) | [static] |
Definition at line 1161 of file chan_mgcp.c.
References ast_channel::_state, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_setstate(), AST_STATE_UP, ast_verbose(), mgcp_subchannel::cxmode, mgcp_subchannel::id, mgcp_subchannel::lock, LOG_DEBUG, MGCP_CX_SENDRECV, mgcp_gateway::name, mgcp_endpoint::name, option_debug, option_verbose, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, start_rtp(), ast_channel::tech_pvt, transmit_modify_request(), transmit_notify_request(), and VERBOSE_PREFIX_3.
01162 { 01163 int res = 0; 01164 struct mgcp_subchannel *sub = ast->tech_pvt; 01165 struct mgcp_endpoint *p = sub->parent; 01166 01167 ast_mutex_lock(&sub->lock); 01168 sub->cxmode = MGCP_CX_SENDRECV; 01169 if (!sub->rtp) { 01170 start_rtp(sub); 01171 } else { 01172 transmit_modify_request(sub); 01173 } 01174 /* verbose level check */ 01175 if (option_verbose > 2) { 01176 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_answer(%s) on %s@%s-%d\n", 01177 ast->name, p->name, p->parent->name, sub->id); 01178 } 01179 if (ast->_state != AST_STATE_UP) { 01180 ast_setstate(ast, AST_STATE_UP); 01181 if (option_debug) 01182 ast_log(LOG_DEBUG, "mgcp_answer(%s)\n", ast->name); 01183 transmit_notify_request(sub, ""); 01184 transmit_modify_request(sub); 01185 } 01186 ast_mutex_unlock(&sub->lock); 01187 return res; 01188 }
static int mgcp_audit_endpoint | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1068 of file chan_mgcp.c.
References ast_cli(), ast_mutex_lock(), ast_mutex_unlock(), mgcp_gateway::endpoints, gateways, mgcp_endpoint::name, mgcp_gateway::name, mgcp_gateway::next, mgcp_endpoint::next, RESULT_SHOWUSAGE, RESULT_SUCCESS, and transmit_audit_endpoint().
01069 { 01070 struct mgcp_gateway *g; 01071 struct mgcp_endpoint *e; 01072 int found = 0; 01073 char *ename,*gname, *c; 01074 01075 if (!mgcpdebug) { 01076 return RESULT_SHOWUSAGE; 01077 } 01078 if (argc != 4) 01079 return RESULT_SHOWUSAGE; 01080 /* split the name into parts by null */ 01081 ename = argv[3]; 01082 gname = ename; 01083 while (*gname) { 01084 if (*gname == '@') { 01085 *gname = 0; 01086 gname++; 01087 break; 01088 } 01089 gname++; 01090 } 01091 if (gname[0] == '[') 01092 gname++; 01093 if ((c = strrchr(gname, ']'))) 01094 *c = '\0'; 01095 ast_mutex_lock(&gatelock); 01096 g = gateways; 01097 while(g) { 01098 if (!strcasecmp(g->name, gname)) { 01099 e = g->endpoints; 01100 while(e) { 01101 if (!strcasecmp(e->name, ename)) { 01102 found = 1; 01103 transmit_audit_endpoint(e); 01104 break; 01105 } 01106 e = e->next; 01107 } 01108 if (found) { 01109 break; 01110 } 01111 } 01112 g = g->next; 01113 } 01114 if (!found) { 01115 ast_cli(fd, " << Could not find endpoint >> "); 01116 } 01117 ast_mutex_unlock(&gatelock); 01118 return RESULT_SUCCESS; 01119 }
static int mgcp_call | ( | struct ast_channel * | ast, | |
char * | dest, | |||
int | timeout | |||
) | [static] |
Definition at line 820 of file chan_mgcp.c.
References ast_channel::_state, AST_CONTROL_RINGING, AST_LIST_TRAVERSE, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_queue_control(), ast_setstate(), AST_STATE_DOWN, AST_STATE_RESERVED, AST_STATE_RINGING, ast_strlen_zero(), ast_var_name(), ast_var_value(), ast_verbose(), mgcp_subchannel::callid, ast_channel::cid, ast_callerid::cid_name, ast_callerid::cid_num, mgcp_subchannel::cxident, mgcp_subchannel::cxmode, mgcp_endpoint::hookstate, mgcp_subchannel::lock, LOG_NOTICE, LOG_WARNING, MGCP_CX_RECVONLY, MGCP_CX_SENDRECV, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_subchannel::next, mgcp_subchannel::outgoing, mgcp_subchannel::owner, mgcp_subchannel::parent, mgcp_subchannel::rtp, start_rtp(), ast_channel::tech_pvt, transmit_modify_request(), transmit_notify_request_with_callerid(), mgcp_endpoint::type, TYPE_LINE, ast_channel::varshead, and VERBOSE_PREFIX_3.
00821 { 00822 int res; 00823 struct mgcp_endpoint *p; 00824 struct mgcp_subchannel *sub; 00825 char tone[50] = ""; 00826 const char *distinctive_ring = NULL; 00827 struct varshead *headp; 00828 struct ast_var_t *current; 00829 00830 if (mgcpdebug) { 00831 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_call(%s)\n", ast->name); 00832 } 00833 sub = ast->tech_pvt; 00834 p = sub->parent; 00835 headp = &ast->varshead; 00836 AST_LIST_TRAVERSE(headp,current,entries) { 00837 /* Check whether there is an ALERT_INFO variable */ 00838 if (strcasecmp(ast_var_name(current),"ALERT_INFO") == 0) { 00839 distinctive_ring = ast_var_value(current); 00840 } 00841 } 00842 00843 ast_mutex_lock(&sub->lock); 00844 switch (p->hookstate) { 00845 case MGCP_OFFHOOK: 00846 if (!ast_strlen_zero(distinctive_ring)) { 00847 snprintf(tone, sizeof(tone), "L/wt%s", distinctive_ring); 00848 if (mgcpdebug) { 00849 ast_verbose(VERBOSE_PREFIX_3 "MGCP distinctive callwait %s\n", tone); 00850 } 00851 } else { 00852 snprintf(tone, sizeof(tone), "L/wt"); 00853 if (mgcpdebug) { 00854 ast_verbose(VERBOSE_PREFIX_3 "MGCP normal callwait %s\n", tone); 00855 } 00856 } 00857 break; 00858 case MGCP_ONHOOK: 00859 default: 00860 if (!ast_strlen_zero(distinctive_ring)) { 00861 snprintf(tone, sizeof(tone), "L/r%s", distinctive_ring); 00862 if (mgcpdebug) { 00863 ast_verbose(VERBOSE_PREFIX_3 "MGCP distinctive ring %s\n", tone); 00864 } 00865 } else { 00866 snprintf(tone, sizeof(tone), "L/rg"); 00867 if (mgcpdebug) { 00868 ast_verbose(VERBOSE_PREFIX_3 "MGCP default ring\n"); 00869 } 00870 } 00871 break; 00872 } 00873 00874 if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) { 00875 ast_log(LOG_WARNING, "mgcp_call called on %s, neither down nor reserved\n", ast->name); 00876 ast_mutex_unlock(&sub->lock); 00877 return -1; 00878 } 00879 00880 res = 0; 00881 sub->outgoing = 1; 00882 sub->cxmode = MGCP_CX_RECVONLY; 00883 if (p->type == TYPE_LINE) { 00884 if (!sub->rtp) { 00885 start_rtp(sub); 00886 } else { 00887 transmit_modify_request(sub); 00888 } 00889 00890 if (sub->next->owner && !ast_strlen_zero(sub->next->cxident) && !ast_strlen_zero(sub->next->callid)) { 00891 /* try to prevent a callwait from disturbing the other connection */ 00892 sub->next->cxmode = MGCP_CX_RECVONLY; 00893 transmit_modify_request(sub->next); 00894 } 00895 00896 transmit_notify_request_with_callerid(sub, tone, ast->cid.cid_num, ast->cid.cid_name); 00897 ast_setstate(ast, AST_STATE_RINGING); 00898 00899 if (sub->next->owner && !ast_strlen_zero(sub->next->cxident) && !ast_strlen_zero(sub->next->callid)) { 00900 /* Put the connection back in sendrecv */ 00901 sub->next->cxmode = MGCP_CX_SENDRECV; 00902 transmit_modify_request(sub->next); 00903 } 00904 } else { 00905 ast_log(LOG_NOTICE, "Don't know how to dial on trunks yet\n"); 00906 res = -1; 00907 } 00908 ast_mutex_unlock(&sub->lock); 00909 ast_queue_control(ast, AST_CONTROL_RINGING); 00910 return res; 00911 }
static int mgcp_devicestate | ( | void * | data | ) | [static] |
mgcp_devicestate: channel callback for device status monitoring
data | tech/resource name of MGCP device to query |
Definition at line 1334 of file chan_mgcp.c.
References AST_DEVICE_INVALID, AST_DEVICE_UNKNOWN, ast_mutex_lock(), ast_mutex_unlock(), ast_strdupa, mgcp_gateway::endpoints, error(), gateways, mgcp_endpoint::name, mgcp_gateway::name, mgcp_endpoint::next, and mgcp_gateway::next.
01335 { 01336 struct mgcp_gateway *g; 01337 struct mgcp_endpoint *e = NULL; 01338 char *tmp, *endpt, *gw; 01339 int ret = AST_DEVICE_INVALID; 01340 01341 endpt = ast_strdupa(data); 01342 if ((tmp = strchr(endpt, '@'))) { 01343 *tmp++ = '\0'; 01344 gw = tmp; 01345 } else 01346 goto error; 01347 01348 ast_mutex_lock(&gatelock); 01349 g = gateways; 01350 while (g) { 01351 if (strcasecmp(g->name, gw) == 0) { 01352 e = g->endpoints; 01353 break; 01354 } 01355 g = g->next; 01356 } 01357 01358 if (!e) 01359 goto error; 01360 01361 while (e) { 01362 if (strcasecmp(e->name, endpt) == 0) 01363 break; 01364 e = e->next; 01365 } 01366 01367 if (!e) 01368 goto error; 01369 01370 /* 01371 * As long as the gateway/endpoint is valid, we'll 01372 * assume that the device is available and its state 01373 * can be tracked. 01374 */ 01375 ret = AST_DEVICE_UNKNOWN; 01376 01377 error: 01378 ast_mutex_unlock(&gatelock); 01379 return ret; 01380 }
static int mgcp_do_debug | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1121 of file chan_mgcp.c.
References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.
01122 { 01123 if (argc != 3) 01124 return RESULT_SHOWUSAGE; 01125 mgcpdebug = 1; 01126 ast_cli(fd, "MGCP Debugging Enabled\n"); 01127 return RESULT_SUCCESS; 01128 }
static int mgcp_do_reload | ( | void | ) | [static] |
mgcp_do_reload: Reload module
Definition at line 4332 of file chan_mgcp.c.
References reload_config().
Referenced by do_monitor().
04333 { 04334 reload_config(); 04335 return 0; 04336 }
static int mgcp_fixup | ( | struct ast_channel * | oldchan, | |
struct ast_channel * | newchan | |||
) | [static] |
Definition at line 1261 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), mgcp_subchannel::lock, LOG_NOTICE, LOG_WARNING, mgcp_subchannel::owner, and ast_channel::tech_pvt.
01262 { 01263 struct mgcp_subchannel *sub = newchan->tech_pvt; 01264 01265 ast_mutex_lock(&sub->lock); 01266 ast_log(LOG_NOTICE, "mgcp_fixup(%s, %s)\n", oldchan->name, newchan->name); 01267 if (sub->owner != oldchan) { 01268 ast_mutex_unlock(&sub->lock); 01269 ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, sub->owner); 01270 return -1; 01271 } 01272 sub->owner = newchan; 01273 ast_mutex_unlock(&sub->lock); 01274 return 0; 01275 }
static enum ast_rtp_get_result mgcp_get_rtp_peer | ( | struct ast_channel * | chan, | |
struct ast_rtp ** | rtp | |||
) | [static] |
Definition at line 3988 of file chan_mgcp.c.
References AST_RTP_GET_FAILED, AST_RTP_TRY_NATIVE, AST_RTP_TRY_PARTIAL, mgcp_endpoint::canreinvite, mgcp_subchannel::parent, mgcp_subchannel::rtp, and ast_channel::tech_pvt.
03989 { 03990 struct mgcp_subchannel *sub = NULL; 03991 03992 if (!(sub = chan->tech_pvt) || !(sub->rtp)) 03993 return AST_RTP_GET_FAILED; 03994 03995 *rtp = sub->rtp; 03996 03997 if (sub->parent->canreinvite) 03998 return AST_RTP_TRY_NATIVE; 03999 else 04000 return AST_RTP_TRY_PARTIAL; 04001 }
static int mgcp_hangup | ( | struct ast_channel * | ast | ) | [static] |
Definition at line 913 of file chan_mgcp.c.
References mgcp_subchannel::alreadygone, ast_bridged_channel(), ast_dsp_free(), ast_log(), ast_module_unref(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_destroy(), ast_strlen_zero(), ast_verbose(), mgcp_subchannel::callid, mgcp_endpoint::callwaiting, ast_channel::cid, ast_callerid::cid_name, ast_callerid::cid_num, mgcp_subchannel::cxident, mgcp_subchannel::cxmode, mgcp_endpoint::dsp, mgcp_endpoint::dtmf_buf, mgcp_endpoint::dtmfmode, has_voicemail(), mgcp_endpoint::hascallwaiting, mgcp_endpoint::hidecallerid, mgcp_endpoint::hookstate, mgcp_subchannel::lock, LOG_DEBUG, mgcp_subchannel::magic, MGCP_CX_INACTIVE, MGCP_CX_RECVONLY, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, MGCP_OFFHOOK, MGCP_ONHOOK, MGCP_SUBCHANNEL_MAGIC, mgcp_gateway::name, mgcp_endpoint::name, mgcp_subchannel::next, option_debug, option_verbose, mgcp_subchannel::outgoing, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, mgcp_endpoint::sub, ast_channel::tech_pvt, mgcp_subchannel::tmpdest, transmit_connection_del(), transmit_modify_request(), transmit_notify_request(), transmit_notify_request_with_callerid(), VERBOSE_PREFIX_2, and VERBOSE_PREFIX_3.
00914 { 00915 struct mgcp_subchannel *sub = ast->tech_pvt; 00916 struct mgcp_endpoint *p = sub->parent; 00917 00918 if (option_debug) { 00919 ast_log(LOG_DEBUG, "mgcp_hangup(%s)\n", ast->name); 00920 } 00921 if (!ast->tech_pvt) { 00922 ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n"); 00923 return 0; 00924 } 00925 if (strcmp(sub->magic, MGCP_SUBCHANNEL_MAGIC)) { 00926 ast_log(LOG_DEBUG, "Invalid magic. MGCP subchannel freed up already.\n"); 00927 return 0; 00928 } 00929 ast_mutex_lock(&sub->lock); 00930 if (mgcpdebug) { 00931 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_hangup(%s) on %s@%s\n", ast->name, p->name, p->parent->name); 00932 } 00933 00934 if ((p->dtmfmode & MGCP_DTMF_INBAND) && p->dsp) { 00935 /* check whether other channel is active. */ 00936 if (!sub->next->owner) { 00937 if (p->dtmfmode & MGCP_DTMF_HYBRID) 00938 p->dtmfmode &= ~MGCP_DTMF_INBAND; 00939 if (mgcpdebug) { 00940 ast_verbose(VERBOSE_PREFIX_2 "MGCP free dsp on %s@%s\n", p->name, p->parent->name); 00941 } 00942 ast_dsp_free(p->dsp); 00943 p->dsp = NULL; 00944 } 00945 } 00946 00947 sub->owner = NULL; 00948 if (!ast_strlen_zero(sub->cxident)) { 00949 transmit_connection_del(sub); 00950 } 00951 sub->cxident[0] = '\0'; 00952 if ((sub == p->sub) && sub->next->owner) { 00953 if (p->hookstate == MGCP_OFFHOOK) { 00954 if (sub->next->owner && ast_bridged_channel(sub->next->owner)) { 00955 transmit_notify_request_with_callerid(p->sub, "L/wt", ast_bridged_channel(sub->next->owner)->cid.cid_num, ast_bridged_channel(sub->next->owner)->cid.cid_name); 00956 } 00957 } else { 00958 /* set our other connection as the primary and swith over to it */ 00959 p->sub = sub->next; 00960 p->sub->cxmode = MGCP_CX_RECVONLY; 00961 transmit_modify_request(p->sub); 00962 if (sub->next->owner && ast_bridged_channel(sub->next->owner)) { 00963 transmit_notify_request_with_callerid(p->sub, "L/rg", ast_bridged_channel(sub->next->owner)->cid.cid_num, ast_bridged_channel(sub->next->owner)->cid.cid_name); 00964 } 00965 } 00966 00967 } else if ((sub == p->sub->next) && p->hookstate == MGCP_OFFHOOK) { 00968 transmit_notify_request(sub, "L/v"); 00969 } else if (p->hookstate == MGCP_OFFHOOK) { 00970 transmit_notify_request(sub, "L/ro"); 00971 } else { 00972 transmit_notify_request(sub, ""); 00973 } 00974 00975 ast->tech_pvt = NULL; 00976 sub->alreadygone = 0; 00977 sub->outgoing = 0; 00978 sub->cxmode = MGCP_CX_INACTIVE; 00979 sub->callid[0] = '\0'; 00980 if (p) { 00981 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 00982 } 00983 /* Reset temporary destination */ 00984 memset(&sub->tmpdest, 0, sizeof(sub->tmpdest)); 00985 if (sub->rtp) { 00986 ast_rtp_destroy(sub->rtp); 00987 sub->rtp = NULL; 00988 } 00989 00990 ast_module_unref(ast_module_info->self); 00991 00992 if ((p->hookstate == MGCP_ONHOOK) && (!sub->next->rtp)) { 00993 p->hidecallerid = 0; 00994 if (p->hascallwaiting && !p->callwaiting) { 00995 if (option_verbose > 2) 00996 ast_verbose(VERBOSE_PREFIX_3 "Enabling call waiting on %s\n", ast->name); 00997 p->callwaiting = -1; 00998 } 00999 if (has_voicemail(p)) { 01000 if (mgcpdebug) { 01001 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_hangup(%s) on %s@%s set vmwi(+)\n", 01002 ast->name, p->name, p->parent->name); 01003 } 01004 transmit_notify_request(sub, "L/vmwi(+)"); 01005 } else { 01006 if (mgcpdebug) { 01007 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_hangup(%s) on %s@%s set vmwi(-)\n", 01008 ast->name, p->name, p->parent->name); 01009 } 01010 transmit_notify_request(sub, "L/vmwi(-)"); 01011 } 01012 } 01013 ast_mutex_unlock(&sub->lock); 01014 return 0; 01015 }
static int mgcp_indicate | ( | struct ast_channel * | ast, | |
int | ind, | |||
const void * | data, | |||
size_t | datalen | |||
) | [static] |
Definition at line 1414 of file chan_mgcp.c.
References AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_HOLD, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_UNHOLD, ast_log(), ast_moh_start(), ast_moh_stop(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_change_source(), ast_rtp_update_source(), ast_verbose(), control2str(), mgcp_subchannel::lock, LOG_WARNING, mgcp_subchannel::rtp, ast_channel::tech_pvt, transmit_notify_request(), and VERBOSE_PREFIX_3.
01415 { 01416 struct mgcp_subchannel *sub = ast->tech_pvt; 01417 int res = 0; 01418 01419 if (mgcpdebug) { 01420 ast_verbose(VERBOSE_PREFIX_3 "MGCP asked to indicate %d '%s' condition on channel %s\n", 01421 ind, control2str(ind), ast->name); 01422 } 01423 ast_mutex_lock(&sub->lock); 01424 switch(ind) { 01425 case AST_CONTROL_RINGING: 01426 #ifdef DLINK_BUGGY_FIRMWARE 01427 transmit_notify_request(sub, "rt"); 01428 #else 01429 transmit_notify_request(sub, "G/rt"); 01430 #endif 01431 break; 01432 case AST_CONTROL_BUSY: 01433 transmit_notify_request(sub, "L/bz"); 01434 break; 01435 case AST_CONTROL_CONGESTION: 01436 transmit_notify_request(sub, "G/cg"); 01437 break; 01438 case AST_CONTROL_HOLD: 01439 ast_moh_start(ast, data, NULL); 01440 break; 01441 case AST_CONTROL_UNHOLD: 01442 ast_moh_stop(ast); 01443 break; 01444 case AST_CONTROL_SRCUPDATE: 01445 ast_rtp_update_source(sub->rtp); 01446 break; 01447 case AST_CONTROL_SRCCHANGE: 01448 ast_rtp_change_source(sub->rtp); 01449 break; 01450 case -1: 01451 transmit_notify_request(sub, ""); 01452 break; 01453 default: 01454 ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", ind); 01455 res = -1; 01456 } 01457 ast_mutex_unlock(&sub->lock); 01458 return res; 01459 }
static struct ast_channel* mgcp_new | ( | struct mgcp_subchannel * | sub, | |
int | state | |||
) | [static, read] |
Definition at line 1461 of file chan_mgcp.c.
References mgcp_endpoint::accountcode, mgcp_endpoint::adsi, ast_channel::adsicpe, ast_channel::amaflags, mgcp_endpoint::amaflags, AST_ADSI_UNAVAILABLE, ast_best_codec(), ast_channel_alloc(), ast_dsp_digitmode(), ast_dsp_new(), ast_dsp_set_features(), ast_hangup(), ast_jb_configure(), ast_log(), ast_module_ref(), ast_pbx_start(), ast_rtp_fd(), ast_state2str(), AST_STATE_DOWN, AST_STATE_RING, ast_strdup, ast_string_field_build, ast_string_field_set, ast_strlen_zero(), ast_verbose(), mgcp_endpoint::call_forward, mgcp_endpoint::callgroup, ast_channel::callgroup, mgcp_endpoint::capability, ast_channel::cid, ast_callerid::cid_ani, mgcp_endpoint::cid_name, mgcp_endpoint::cid_num, ast_channel::context, mgcp_endpoint::context, mgcp_endpoint::dsp, DSP_DIGITMODE_NOQUELCH, DSP_FEATURE_DTMF_DETECT, mgcp_endpoint::dtmfmode, ast_channel::exten, mgcp_endpoint::exten, ast_channel::fds, fmt, global_jbconf, mgcp_subchannel::id, mgcp_endpoint::language, LOG_WARNING, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, name, mgcp_gateway::name, mgcp_endpoint::name, ast_channel::nativeformats, option_verbose, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_endpoint::pickupgroup, ast_channel::pickupgroup, ast_channel::priority, ast_channel::rawreadformat, ast_channel::rawwriteformat, ast_channel::readformat, ast_channel::rings, mgcp_subchannel::rtp, ast_channel::tech, ast_channel::tech_pvt, VERBOSE_PREFIX_3, and ast_channel::writeformat.
Referenced by handle_hd_hf(), and mgcp_request().
01462 { 01463 struct ast_channel *tmp; 01464 struct mgcp_endpoint *i = sub->parent; 01465 int fmt; 01466 01467 tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, i->accountcode, i->exten, i->context, i->amaflags, "MGCP/%s@%s-%d", i->name, i->parent->name, sub->id); 01468 if (tmp) { 01469 tmp->tech = &mgcp_tech; 01470 tmp->nativeformats = i->capability; 01471 if (!tmp->nativeformats) 01472 tmp->nativeformats = capability; 01473 fmt = ast_best_codec(tmp->nativeformats); 01474 ast_string_field_build(tmp, name, "MGCP/%s@%s-%d", i->name, i->parent->name, sub->id); 01475 if (sub->rtp) 01476 tmp->fds[0] = ast_rtp_fd(sub->rtp); 01477 if (i->dtmfmode & (MGCP_DTMF_INBAND | MGCP_DTMF_HYBRID)) { 01478 i->dsp = ast_dsp_new(); 01479 ast_dsp_set_features(i->dsp,DSP_FEATURE_DTMF_DETECT); 01480 /* this is to prevent clipping of dtmf tones during dsp processing */ 01481 ast_dsp_digitmode(i->dsp, DSP_DIGITMODE_NOQUELCH); 01482 } else { 01483 i->dsp = NULL; 01484 } 01485 if (state == AST_STATE_RING) 01486 tmp->rings = 1; 01487 tmp->writeformat = fmt; 01488 tmp->rawwriteformat = fmt; 01489 tmp->readformat = fmt; 01490 tmp->rawreadformat = fmt; 01491 tmp->tech_pvt = sub; 01492 if (!ast_strlen_zero(i->language)) 01493 ast_string_field_set(tmp, language, i->language); 01494 if (!ast_strlen_zero(i->accountcode)) 01495 ast_string_field_set(tmp, accountcode, i->accountcode); 01496 if (i->amaflags) 01497 tmp->amaflags = i->amaflags; 01498 sub->owner = tmp; 01499 ast_module_ref(ast_module_info->self); 01500 tmp->callgroup = i->callgroup; 01501 tmp->pickupgroup = i->pickupgroup; 01502 ast_string_field_set(tmp, call_forward, i->call_forward); 01503 ast_copy_string(tmp->context, i->context, sizeof(tmp->context)); 01504 ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten)); 01505 01506 /* Don't use ast_set_callerid() here because it will 01507 * generate a needless NewCallerID event */ 01508 tmp->cid.cid_ani = ast_strdup(i->cid_num); 01509 01510 if (!i->adsi) 01511 tmp->adsicpe = AST_ADSI_UNAVAILABLE; 01512 tmp->priority = 1; 01513 if (sub->rtp) 01514 ast_jb_configure(tmp, &global_jbconf); 01515 if (state != AST_STATE_DOWN) { 01516 if (ast_pbx_start(tmp)) { 01517 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); 01518 ast_hangup(tmp); 01519 tmp = NULL; 01520 } 01521 } 01522 /* verbose level check */ 01523 if (option_verbose > 2) { 01524 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_new(%s) created in state: %s\n", 01525 tmp->name, ast_state2str(state)); 01526 } 01527 } else { 01528 ast_log(LOG_WARNING, "Unable to allocate channel structure\n"); 01529 } 01530 return tmp; 01531 }
static int mgcp_no_debug | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1130 of file chan_mgcp.c.
References ast_cli(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.
01131 { 01132 if (argc != 4) 01133 return RESULT_SHOWUSAGE; 01134 mgcpdebug = 0; 01135 ast_cli(fd, "MGCP Debugging Disabled\n"); 01136 return RESULT_SUCCESS; 01137 }
static int mgcp_postrequest | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub, | |||
char * | data, | |||
int | len, | |||
unsigned int | seqno | |||
) | [static] |
Definition at line 669 of file chan_mgcp.c.
References __mgcp_xmit(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_sched_add(), mgcp_message::buf, DEFAULT_RETRANS, mgcp_message::expire, mgcp_message::len, LOG_NOTICE, malloc, mgcp_gateway::msgs, mgcp_gateway::msgs_lock, mgcp_message::next, mgcp_message::owner_ep, mgcp_message::owner_sub, mgcp_endpoint::parent, mgcp_message::retrans, retrans_pkt(), mgcp_gateway::retransid, and mgcp_message::seqno.
Referenced by find_command(), and send_request().
00671 { 00672 struct mgcp_message *msg = malloc(sizeof(struct mgcp_message) + len); 00673 struct mgcp_message *cur; 00674 struct mgcp_gateway *gw = ((p && p->parent) ? p->parent : NULL); 00675 struct timeval tv; 00676 00677 if (!msg) { 00678 return -1; 00679 } 00680 if (!gw) { 00681 return -1; 00682 } 00683 /* SC 00684 time(&t); 00685 if (gw->messagepending && (gw->lastouttime + 20 < t)) { 00686 ast_log(LOG_NOTICE, "Timeout waiting for response to message:%d, lastouttime: %ld, now: %ld. Dumping pending queue\n", 00687 gw->msgs ? gw->msgs->seqno : -1, (long) gw->lastouttime, (long) t); 00688 dump_queue(sub->parent); 00689 } 00690 */ 00691 msg->owner_sub = sub; 00692 msg->owner_ep = p; 00693 msg->seqno = seqno; 00694 msg->next = NULL; 00695 msg->len = len; 00696 msg->retrans = 0; 00697 memcpy(msg->buf, data, msg->len); 00698 00699 ast_mutex_lock(&gw->msgs_lock); 00700 cur = gw->msgs; 00701 if (cur) { 00702 while(cur->next) 00703 cur = cur->next; 00704 cur->next = msg; 00705 } else { 00706 gw->msgs = msg; 00707 } 00708 00709 if (gettimeofday(&tv, NULL) < 0) { 00710 /* This shouldn't ever happen, but let's be sure */ 00711 ast_log(LOG_NOTICE, "gettimeofday() failed!\n"); 00712 } else { 00713 msg->expire = tv.tv_sec * 1000 + tv.tv_usec / 1000 + DEFAULT_RETRANS; 00714 00715 if (gw->retransid == -1) 00716 gw->retransid = ast_sched_add(sched, DEFAULT_RETRANS, retrans_pkt, (void *)gw); 00717 } 00718 ast_mutex_unlock(&gw->msgs_lock); 00719 /* SC 00720 if (!gw->messagepending) { 00721 gw->messagepending = 1; 00722 gw->lastout = seqno; 00723 gw->lastouttime = t; 00724 */ 00725 __mgcp_xmit(gw, msg->buf, msg->len); 00726 /* XXX Should schedule retransmission XXX */ 00727 /* SC 00728 } else 00729 ast_log(LOG_DEBUG, "Deferring transmission of transaction %d\n", seqno); 00730 */ 00731 return 0; 00732 }
static void mgcp_queue_control | ( | struct mgcp_subchannel * | sub, | |
int | control | |||
) | [static] |
Definition at line 600 of file chan_mgcp.c.
References AST_FRAME_CONTROL, mgcp_queue_frame(), and ast_frame::subclass.
Referenced by handle_hd_hf().
00601 { 00602 struct ast_frame f = { AST_FRAME_CONTROL, }; 00603 f.subclass = control; 00604 return mgcp_queue_frame(sub, &f); 00605 }
static void mgcp_queue_frame | ( | struct mgcp_subchannel * | sub, | |
struct ast_frame * | f | |||
) | [static] |
Definition at line 568 of file chan_mgcp.c.
References ast_mutex_trylock(), ast_mutex_unlock(), ast_queue_frame(), DEADLOCK_AVOIDANCE, mgcp_subchannel::lock, ast_channel::lock, and mgcp_subchannel::owner.
Referenced by handle_request(), and mgcp_queue_control().
00569 { 00570 for(;;) { 00571 if (sub->owner) { 00572 if (!ast_mutex_trylock(&sub->owner->lock)) { 00573 ast_queue_frame(sub->owner, f); 00574 ast_mutex_unlock(&sub->owner->lock); 00575 break; 00576 } else { 00577 DEADLOCK_AVOIDANCE(&sub->lock); 00578 } 00579 } else 00580 break; 00581 } 00582 }
static void mgcp_queue_hangup | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 584 of file chan_mgcp.c.
References ast_mutex_trylock(), ast_mutex_unlock(), ast_queue_hangup(), DEADLOCK_AVOIDANCE, mgcp_subchannel::lock, ast_channel::lock, and mgcp_subchannel::owner.
Referenced by attempt_transfer(), destroy_endpoint(), handle_request(), and handle_response().
00585 { 00586 for(;;) { 00587 if (sub->owner) { 00588 if (!ast_mutex_trylock(&sub->owner->lock)) { 00589 ast_queue_hangup(sub->owner); 00590 ast_mutex_unlock(&sub->owner->lock); 00591 break; 00592 } else { 00593 DEADLOCK_AVOIDANCE(&sub->lock); 00594 } 00595 } else 00596 break; 00597 } 00598 }
static struct ast_frame * mgcp_read | ( | struct ast_channel * | ast | ) | [static, read] |
Definition at line 1221 of file chan_mgcp.c.
References ast_mutex_lock(), ast_mutex_unlock(), f, mgcp_subchannel::lock, mgcp_rtp_read(), and ast_channel::tech_pvt.
01222 { 01223 struct ast_frame *f; 01224 struct mgcp_subchannel *sub = ast->tech_pvt; 01225 ast_mutex_lock(&sub->lock); 01226 f = mgcp_rtp_read(sub); 01227 ast_mutex_unlock(&sub->lock); 01228 return f; 01229 }
static int mgcp_reload | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 4338 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), LOG_WARNING, and restart_monitor().
Referenced by reload(), and unload_module().
04339 { 04340 static int deprecated = 0; 04341 if (!deprecated && argc > 0) { 04342 ast_log(LOG_WARNING, "'mgcp reload' is deprecated. Please use 'reload chan_mgcp.so' instead.\n"); 04343 deprecated = 1; 04344 } 04345 04346 ast_mutex_lock(&mgcp_reload_lock); 04347 if (mgcp_reloading) { 04348 ast_verbose("Previous mgcp reload not yet done\n"); 04349 } else 04350 mgcp_reloading = 1; 04351 ast_mutex_unlock(&mgcp_reload_lock); 04352 restart_monitor(); 04353 return 0; 04354 }
static struct ast_channel * mgcp_request | ( | const char * | type, | |
int | format, | |||
void * | data, | |||
int * | cause | |||
) | [static, read] |
Definition at line 3556 of file chan_mgcp.c.
References AST_CAUSE_BUSY, AST_CAUSE_UNREGISTERED, ast_log(), ast_mutex_unlock(), AST_STATE_DOWN, ast_strlen_zero(), ast_verbose(), mgcp_endpoint::call_forward, mgcp_endpoint::callwaiting, mgcp_endpoint::dnd, find_subchannel_and_lock(), has_voicemail(), mgcp_endpoint::hookstate, mgcp_subchannel::lock, LOG_NOTICE, LOG_WARNING, mgcp_new(), MGCP_ONHOOK, mgcp_subchannel::next, option_verbose, mgcp_subchannel::owner, mgcp_subchannel::parent, restart_monitor(), transmit_notify_request(), and VERBOSE_PREFIX_3.
03557 { 03558 int oldformat; 03559 struct mgcp_subchannel *sub; 03560 struct ast_channel *tmpc = NULL; 03561 char tmp[256]; 03562 char *dest = data; 03563 03564 oldformat = format; 03565 format &= capability; 03566 if (!format) { 03567 ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format); 03568 return NULL; 03569 } 03570 ast_copy_string(tmp, dest, sizeof(tmp)); 03571 if (ast_strlen_zero(tmp)) { 03572 ast_log(LOG_NOTICE, "MGCP Channels require an endpoint\n"); 03573 return NULL; 03574 } 03575 sub = find_subchannel_and_lock(tmp, 0, NULL); 03576 if (!sub) { 03577 ast_log(LOG_WARNING, "Unable to find MGCP endpoint '%s'\n", tmp); 03578 *cause = AST_CAUSE_UNREGISTERED; 03579 return NULL; 03580 } 03581 03582 if (option_verbose > 2) { 03583 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_request(%s)\n", tmp); 03584 ast_verbose(VERBOSE_PREFIX_3 "MGCP cw: %d, dnd: %d, so: %d, sno: %d\n", 03585 sub->parent->callwaiting, sub->parent->dnd, sub->owner ? 1 : 0, sub->next->owner ? 1: 0); 03586 } 03587 /* Must be busy */ 03588 if (((sub->parent->callwaiting) && ((sub->owner) && (sub->next->owner))) || 03589 ((!sub->parent->callwaiting) && (sub->owner)) || 03590 (sub->parent->dnd && (ast_strlen_zero(sub->parent->call_forward)))) { 03591 if (sub->parent->hookstate == MGCP_ONHOOK) { 03592 if (has_voicemail(sub->parent)) { 03593 transmit_notify_request(sub,"L/vmwi(+)"); 03594 } else { 03595 transmit_notify_request(sub,"L/vmwi(-)"); 03596 } 03597 } 03598 *cause = AST_CAUSE_BUSY; 03599 ast_mutex_unlock(&sub->lock); 03600 return NULL; 03601 } 03602 tmpc = mgcp_new(sub->owner ? sub->next : sub, AST_STATE_DOWN); 03603 ast_mutex_unlock(&sub->lock); 03604 if (!tmpc) 03605 ast_log(LOG_WARNING, "Unable to make channel for '%s'\n", tmp); 03606 restart_monitor(); 03607 return tmpc; 03608 }
static struct ast_frame* mgcp_rtp_read | ( | struct mgcp_subchannel * | sub | ) | [static, read] |
Definition at line 1190 of file chan_mgcp.c.
References ast_dsp_process(), AST_FRAME_DTMF, AST_FRAME_VOICE, ast_log(), ast_null_frame, ast_rtp_read(), ast_set_read_format(), ast_set_write_format(), mgcp_endpoint::dsp, mgcp_endpoint::dtmfmode, f, ast_frame::frametype, LOG_DEBUG, LOG_NOTICE, MGCP_DTMF_INBAND, MGCP_DTMF_RFC2833, ast_channel::nativeformats, mgcp_subchannel::owner, mgcp_subchannel::parent, ast_channel::readformat, mgcp_subchannel::rtp, ast_frame::subclass, and ast_channel::writeformat.
Referenced by mgcp_read().
01191 { 01192 /* Retrieve audio/etc from channel. Assumes sub->lock is already held. */ 01193 struct ast_frame *f; 01194 01195 f = ast_rtp_read(sub->rtp); 01196 /* Don't send RFC2833 if we're not supposed to */ 01197 if (f && (f->frametype == AST_FRAME_DTMF) && !(sub->parent->dtmfmode & MGCP_DTMF_RFC2833)) 01198 return &ast_null_frame; 01199 if (sub->owner) { 01200 /* We already hold the channel lock */ 01201 if (f->frametype == AST_FRAME_VOICE) { 01202 if (f->subclass != sub->owner->nativeformats) { 01203 ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass); 01204 sub->owner->nativeformats = f->subclass; 01205 ast_set_read_format(sub->owner, sub->owner->readformat); 01206 ast_set_write_format(sub->owner, sub->owner->writeformat); 01207 } 01208 /* Courtesy fearnor aka alex@pilosoft.com */ 01209 if ((sub->parent->dtmfmode & MGCP_DTMF_INBAND) && (sub->parent->dsp)) { 01210 #if 0 01211 ast_log(LOG_NOTICE, "MGCP ast_dsp_process\n"); 01212 #endif 01213 f = ast_dsp_process(sub->owner, sub->parent->dsp, f); 01214 } 01215 } 01216 } 01217 return f; 01218 }
static int mgcp_senddigit_begin | ( | struct ast_channel * | ast, | |
char | digit | |||
) | [static] |
Definition at line 1277 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_begin(), mgcp_endpoint::dtmfmode, mgcp_subchannel::lock, LOG_DEBUG, LOG_ERROR, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, MGCP_DTMF_RFC2833, mgcp_subchannel::parent, mgcp_subchannel::rtp, and ast_channel::tech_pvt.
01278 { 01279 struct mgcp_subchannel *sub = ast->tech_pvt; 01280 struct mgcp_endpoint *p = sub->parent; 01281 int res = 0; 01282 01283 ast_mutex_lock(&sub->lock); 01284 if (p->dtmfmode & MGCP_DTMF_INBAND || p->dtmfmode & MGCP_DTMF_HYBRID) { 01285 ast_log(LOG_DEBUG, "Sending DTMF using inband/hybrid\n"); 01286 res = -1; /* Let asterisk play inband indications */ 01287 } else if (p->dtmfmode & MGCP_DTMF_RFC2833) { 01288 ast_log(LOG_DEBUG, "Sending DTMF using RFC2833"); 01289 ast_rtp_senddigit_begin(sub->rtp, digit); 01290 } else { 01291 ast_log(LOG_ERROR, "Don't know about DTMF_MODE %d\n", p->dtmfmode); 01292 } 01293 ast_mutex_unlock(&sub->lock); 01294 01295 return res; 01296 }
static int mgcp_senddigit_end | ( | struct ast_channel * | ast, | |
char | digit, | |||
unsigned int | duration | |||
) | [static] |
Definition at line 1298 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_senddigit_end(), mgcp_endpoint::dtmfmode, mgcp_subchannel::lock, LOG_DEBUG, LOG_ERROR, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, MGCP_DTMF_RFC2833, mgcp_subchannel::parent, mgcp_subchannel::rtp, ast_channel::tech_pvt, and transmit_notify_request().
01299 { 01300 struct mgcp_subchannel *sub = ast->tech_pvt; 01301 struct mgcp_endpoint *p = sub->parent; 01302 int res = 0; 01303 char tmp[4]; 01304 01305 ast_mutex_lock(&sub->lock); 01306 if (p->dtmfmode & MGCP_DTMF_INBAND || p->dtmfmode & MGCP_DTMF_HYBRID) { 01307 ast_log(LOG_DEBUG, "Stopping DTMF using inband/hybrid\n"); 01308 res = -1; /* Tell Asterisk to stop inband indications */ 01309 } else if (p->dtmfmode & MGCP_DTMF_RFC2833) { 01310 ast_log(LOG_DEBUG, "Stopping DTMF using RFC2833\n"); 01311 tmp[0] = 'D'; 01312 tmp[1] = '/'; 01313 tmp[2] = digit; 01314 tmp[3] = '\0'; 01315 transmit_notify_request(sub, tmp); 01316 ast_rtp_senddigit_end(sub->rtp, digit); 01317 } else { 01318 ast_log(LOG_ERROR, "Don't know about DTMF_MODE %d\n", p->dtmfmode); 01319 } 01320 ast_mutex_unlock(&sub->lock); 01321 01322 return res; 01323 }
static int mgcp_set_rtp_peer | ( | struct ast_channel * | chan, | |
struct ast_rtp * | rtp, | |||
struct ast_rtp * | vrtp, | |||
int | codecs, | |||
int | nat_active | |||
) | [static] |
Definition at line 4003 of file chan_mgcp.c.
References mgcp_subchannel::alreadygone, ast_channel::tech_pvt, and transmit_modify_with_sdp().
04004 { 04005 /* XXX Is there such thing as video support with MGCP? XXX */ 04006 struct mgcp_subchannel *sub; 04007 sub = chan->tech_pvt; 04008 if (sub && !sub->alreadygone) { 04009 transmit_modify_with_sdp(sub, rtp, codecs); 04010 return 0; 04011 } 04012 return -1; 04013 }
static int mgcp_show_endpoints | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1017 of file chan_mgcp.c.
References mgcp_gateway::addr, ast_cli(), ast_inet_ntoa(), ast_mutex_lock(), ast_mutex_unlock(), mgcp_endpoint::context, mgcp_gateway::defaddr, mgcp_gateway::dynamic, mgcp_gateway::endpoints, gateways, mgcp_endpoint::name, mgcp_gateway::name, mgcp_gateway::next, mgcp_endpoint::next, mgcp_subchannel::owner, RESULT_SHOWUSAGE, RESULT_SUCCESS, mgcp_endpoint::sub, and mgcp_gateway::wcardep.
01018 { 01019 struct mgcp_gateway *g; 01020 struct mgcp_endpoint *e; 01021 int hasendpoints = 0; 01022 01023 if (argc != 3) 01024 return RESULT_SHOWUSAGE; 01025 ast_mutex_lock(&gatelock); 01026 g = gateways; 01027 while(g) { 01028 e = g->endpoints; 01029 ast_cli(fd, "Gateway '%s' at %s (%s)\n", g->name, g->addr.sin_addr.s_addr ? ast_inet_ntoa(g->addr.sin_addr) : ast_inet_ntoa(g->defaddr.sin_addr), g->dynamic ? "Dynamic" : "Static"); 01030 while(e) { 01031 /* Don't show wilcard endpoint */ 01032 if (strcmp(e->name, g->wcardep) !=0) 01033 ast_cli(fd, " -- '%s@%s in '%s' is %s\n", e->name, g->name, e->context, e->sub->owner ? "active" : "idle"); 01034 hasendpoints = 1; 01035 e = e->next; 01036 } 01037 if (!hasendpoints) { 01038 ast_cli(fd, " << No Endpoints Defined >> "); 01039 } 01040 g = g->next; 01041 } 01042 ast_mutex_unlock(&gatelock); 01043 return RESULT_SUCCESS; 01044 }
static void* mgcp_ss | ( | void * | data | ) | [static] |
Definition at line 2649 of file chan_mgcp.c.
References ast_bridged_channel(), ast_canmatch_extension(), ast_db_put(), ast_exists_extension(), ast_hangup(), ast_ignore_pattern(), ast_indicate(), ast_log(), ast_masq_park_call(), ast_matchmore_extension(), AST_MAX_EXTENSION, ast_parking_ext(), ast_pbx_run(), ast_pickup_call(), ast_pickup_ext(), ast_safe_sleep(), ast_say_digit_str(), ast_set_callerid(), ast_setstate(), AST_STATE_RING, ast_strlen_zero(), ast_verbose(), ast_waitfordigit(), mgcp_endpoint::call_forward, mgcp_endpoint::callreturn, mgcp_endpoint::callwaiting, mgcp_endpoint::cancallforward, ast_channel::cid, ast_callerid::cid_ani, mgcp_endpoint::cid_name, ast_callerid::cid_num, mgcp_endpoint::cid_num, ast_channel::context, mgcp_endpoint::dnd, mgcp_endpoint::dtmf_buf, mgcp_endpoint::dtmfmode, exten, ast_channel::exten, mgcp_endpoint::hascallwaiting, mgcp_endpoint::hidecallerid, mgcp_endpoint::lastcallerid, len, LOG_DEBUG, LOG_WARNING, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, mgcp_subchannel::next, option_debug, option_verbose, mgcp_subchannel::owner, mgcp_subchannel::parent, ast_channel::rings, start_rtp(), ast_channel::tech_pvt, transmit_notify_request(), and VERBOSE_PREFIX_3.
Referenced by handle_hd_hf().
02650 { 02651 struct ast_channel *chan = data; 02652 struct mgcp_subchannel *sub = chan->tech_pvt; 02653 struct mgcp_endpoint *p = sub->parent; 02654 /* char exten[AST_MAX_EXTENSION] = ""; */ 02655 int len = 0; 02656 int timeout = firstdigittimeout; 02657 int res= 0; 02658 int getforward = 0; 02659 int loop_pause = 100; 02660 02661 len = strlen(p->dtmf_buf); 02662 02663 while(len < AST_MAX_EXTENSION-1) { 02664 res = 1; /* Assume that we will get a digit */ 02665 while (strlen(p->dtmf_buf) == len){ 02666 ast_safe_sleep(chan, loop_pause); 02667 timeout -= loop_pause; 02668 if (timeout <= 0){ 02669 res = 0; 02670 break; 02671 } 02672 res = 1; 02673 } 02674 02675 timeout = 0; 02676 len = strlen(p->dtmf_buf); 02677 02678 if (!ast_ignore_pattern(chan->context, p->dtmf_buf)) { 02679 /*res = tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02680 ast_indicate(chan, -1); 02681 } else { 02682 /* XXX Redundant? We should already be playing dialtone */ 02683 /*tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALTONE);*/ 02684 transmit_notify_request(sub, "L/dl"); 02685 } 02686 if (ast_exists_extension(chan, chan->context, p->dtmf_buf, 1, p->cid_num)) { 02687 if (!res || !ast_matchmore_extension(chan, chan->context, p->dtmf_buf, 1, p->cid_num)) { 02688 if (getforward) { 02689 /* Record this as the forwarding extension */ 02690 ast_copy_string(p->call_forward, p->dtmf_buf, sizeof(p->call_forward)); 02691 if (option_verbose > 2) { 02692 ast_verbose(VERBOSE_PREFIX_3 "Setting call forward to '%s' on channel %s\n", 02693 p->call_forward, chan->name); 02694 } 02695 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02696 transmit_notify_request(sub, "L/sl"); 02697 if (res) 02698 break; 02699 usleep(500000); 02700 /*res = tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02701 ast_indicate(chan, -1); 02702 sleep(1); 02703 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02704 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALTONE);*/ 02705 transmit_notify_request(sub, "L/dl"); 02706 len = 0; 02707 getforward = 0; 02708 } else { 02709 /*res = tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02710 ast_indicate(chan, -1); 02711 ast_copy_string(chan->exten, p->dtmf_buf, sizeof(chan->exten)); 02712 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02713 ast_set_callerid(chan, 02714 p->hidecallerid ? "" : p->cid_num, 02715 p->hidecallerid ? "" : p->cid_name, 02716 chan->cid.cid_ani ? NULL : p->cid_num); 02717 ast_setstate(chan, AST_STATE_RING); 02718 /*zt_enable_ec(p);*/ 02719 if (p->dtmfmode & MGCP_DTMF_HYBRID) { 02720 p->dtmfmode |= MGCP_DTMF_INBAND; 02721 ast_indicate(chan, -1); 02722 } 02723 res = ast_pbx_run(chan); 02724 if (res) { 02725 ast_log(LOG_WARNING, "PBX exited non-zero\n"); 02726 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_CONGESTION);*/ 02727 /*transmit_notify_request(p, "nbz", 1);*/ 02728 transmit_notify_request(sub, "G/cg"); 02729 } 02730 return NULL; 02731 } 02732 } else { 02733 /* It's a match, but they just typed a digit, and there is an ambiguous match, 02734 so just set the timeout to matchdigittimeout and wait some more */ 02735 timeout = matchdigittimeout; 02736 } 02737 } else if (res == 0) { 02738 ast_log(LOG_DEBUG, "not enough digits (and no ambiguous match)...\n"); 02739 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_CONGESTION);*/ 02740 transmit_notify_request(sub, "G/cg"); 02741 /*zt_wait_event(p->subs[index].zfd);*/ 02742 ast_hangup(chan); 02743 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02744 return NULL; 02745 } else if (p->hascallwaiting && p->callwaiting && !strcmp(p->dtmf_buf, "*70")) { 02746 if (option_verbose > 2) { 02747 ast_verbose(VERBOSE_PREFIX_3 "Disabling call waiting on %s\n", chan->name); 02748 } 02749 /* Disable call waiting if enabled */ 02750 p->callwaiting = 0; 02751 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02752 transmit_notify_request(sub, "L/sl"); 02753 len = 0; 02754 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02755 timeout = firstdigittimeout; 02756 } else if (!strcmp(p->dtmf_buf,ast_pickup_ext())) { 02757 /* Scan all channels and see if any there 02758 * ringing channqels with that have call groups 02759 * that equal this channels pickup group 02760 */ 02761 if (ast_pickup_call(chan)) { 02762 ast_log(LOG_WARNING, "No call pickup possible...\n"); 02763 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_CONGESTION);*/ 02764 transmit_notify_request(sub, "G/cg"); 02765 } 02766 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02767 ast_hangup(chan); 02768 return NULL; 02769 } else if (!p->hidecallerid && !strcmp(p->dtmf_buf, "*67")) { 02770 if (option_verbose > 2) { 02771 ast_verbose(VERBOSE_PREFIX_3 "Disabling Caller*ID on %s\n", chan->name); 02772 } 02773 /* Disable Caller*ID if enabled */ 02774 p->hidecallerid = 1; 02775 ast_set_callerid(chan, "", "", NULL); 02776 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02777 transmit_notify_request(sub, "L/sl"); 02778 len = 0; 02779 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02780 timeout = firstdigittimeout; 02781 } else if (p->callreturn && !strcmp(p->dtmf_buf, "*69")) { 02782 res = 0; 02783 if (!ast_strlen_zero(p->lastcallerid)) { 02784 res = ast_say_digit_str(chan, p->lastcallerid, "", chan->language); 02785 } 02786 if (!res) 02787 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02788 transmit_notify_request(sub, "L/sl"); 02789 break; 02790 } else if (!strcmp(p->dtmf_buf, "*78")) { 02791 /* Do not disturb */ 02792 if (option_verbose > 2) { 02793 ast_verbose(VERBOSE_PREFIX_3 "Enabled DND on channel %s\n", chan->name); 02794 } 02795 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02796 transmit_notify_request(sub, "L/sl"); 02797 p->dnd = 1; 02798 getforward = 0; 02799 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02800 len = 0; 02801 } else if (!strcmp(p->dtmf_buf, "*79")) { 02802 /* Do not disturb */ 02803 if (option_verbose > 2) { 02804 ast_verbose(VERBOSE_PREFIX_3 "Disabled DND on channel %s\n", chan->name); 02805 } 02806 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02807 transmit_notify_request(sub, "L/sl"); 02808 p->dnd = 0; 02809 getforward = 0; 02810 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02811 len = 0; 02812 } else if (p->cancallforward && !strcmp(p->dtmf_buf, "*72")) { 02813 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02814 transmit_notify_request(sub, "L/sl"); 02815 getforward = 1; 02816 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02817 len = 0; 02818 } else if (p->cancallforward && !strcmp(p->dtmf_buf, "*73")) { 02819 if (option_verbose > 2) { 02820 ast_verbose(VERBOSE_PREFIX_3 "Cancelling call forwarding on channel %s\n", chan->name); 02821 } 02822 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02823 transmit_notify_request(sub, "L/sl"); 02824 memset(p->call_forward, 0, sizeof(p->call_forward)); 02825 getforward = 0; 02826 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02827 len = 0; 02828 } else if (!strcmp(p->dtmf_buf, ast_parking_ext()) && 02829 sub->next->owner && ast_bridged_channel(sub->next->owner)) { 02830 /* This is a three way call, the main call being a real channel, 02831 and we're parking the first call. */ 02832 ast_masq_park_call(ast_bridged_channel(sub->next->owner), chan, 0, NULL); 02833 if (option_verbose > 2) { 02834 ast_verbose(VERBOSE_PREFIX_3 "Parking call to '%s'\n", chan->name); 02835 } 02836 break; 02837 } else if (!ast_strlen_zero(p->lastcallerid) && !strcmp(p->dtmf_buf, "*60")) { 02838 if (option_verbose > 2) { 02839 ast_verbose(VERBOSE_PREFIX_3 "Blacklisting number %s\n", p->lastcallerid); 02840 } 02841 res = ast_db_put("blacklist", p->lastcallerid, "1"); 02842 if (!res) { 02843 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02844 transmit_notify_request(sub, "L/sl"); 02845 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02846 len = 0; 02847 } 02848 } else if (p->hidecallerid && !strcmp(p->dtmf_buf, "*82")) { 02849 if (option_verbose > 2) { 02850 ast_verbose(VERBOSE_PREFIX_3 "Enabling Caller*ID on %s\n", chan->name); 02851 } 02852 /* Enable Caller*ID if enabled */ 02853 p->hidecallerid = 0; 02854 ast_set_callerid(chan, p->cid_num, p->cid_name, NULL); 02855 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02856 transmit_notify_request(sub, "L/sl"); 02857 len = 0; 02858 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02859 timeout = firstdigittimeout; 02860 } else if (!ast_canmatch_extension(chan, chan->context, p->dtmf_buf, 1, chan->cid.cid_num) && 02861 ((p->dtmf_buf[0] != '*') || (strlen(p->dtmf_buf) > 2))) { 02862 if (option_debug) 02863 ast_log(LOG_DEBUG, "Can't match %s from '%s' in context %s\n", p->dtmf_buf, chan->cid.cid_num ? chan->cid.cid_num : "<Unknown Caller>", chan->context); 02864 break; 02865 } 02866 if (!timeout) 02867 timeout = gendigittimeout; 02868 if (len && !ast_ignore_pattern(chan->context, p->dtmf_buf)) 02869 /*tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02870 ast_indicate(chan, -1); 02871 } 02872 #if 0 02873 for (;;) { 02874 res = ast_waitfordigit(chan, to); 02875 if (!res) { 02876 ast_log(LOG_DEBUG, "Timeout...\n"); 02877 break; 02878 } 02879 if (res < 0) { 02880 ast_log(LOG_DEBUG, "Got hangup...\n"); 02881 ast_hangup(chan); 02882 break; 02883 } 02884 exten[pos++] = res; 02885 if (!ast_ignore_pattern(chan->context, exten)) 02886 ast_indicate(chan, -1); 02887 if (ast_matchmore_extension(chan, chan->context, exten, 1, chan->callerid)) { 02888 if (ast_exists_extension(chan, chan->context, exten, 1, chan->callerid)) 02889 to = 3000; 02890 else 02891 to = 8000; 02892 } else 02893 break; 02894 } 02895 if (ast_exists_extension(chan, chan->context, exten, 1, chan->callerid)) { 02896 ast_copy_string(chan->exten, exten, sizeof(chan->exten)1); 02897 if (!p->rtp) { 02898 start_rtp(p); 02899 } 02900 ast_setstate(chan, AST_STATE_RING); 02901 chan->rings = 1; 02902 if (ast_pbx_run(chan)) { 02903 ast_log(LOG_WARNING, "Unable to launch PBX on %s\n", chan->name); 02904 } else { 02905 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02906 return NULL; 02907 } 02908 } 02909 #endif 02910 ast_hangup(chan); 02911 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02912 return NULL; 02913 }
static int mgcp_write | ( | struct ast_channel * | ast, | |
struct ast_frame * | frame | |||
) | [static] |
Definition at line 1231 of file chan_mgcp.c.
References AST_FRAME_IMAGE, AST_FRAME_VOICE, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_write(), ast_frame::frametype, mgcp_subchannel::lock, LOG_WARNING, ast_channel::nativeformats, mgcp_subchannel::parent, ast_channel::readformat, mgcp_subchannel::rtp, mgcp_endpoint::singlepath, mgcp_endpoint::sub, ast_frame::subclass, ast_channel::tech_pvt, and ast_channel::writeformat.
01232 { 01233 struct mgcp_subchannel *sub = ast->tech_pvt; 01234 int res = 0; 01235 if (frame->frametype != AST_FRAME_VOICE) { 01236 if (frame->frametype == AST_FRAME_IMAGE) 01237 return 0; 01238 else { 01239 ast_log(LOG_WARNING, "Can't send %d type frames with MGCP write\n", frame->frametype); 01240 return 0; 01241 } 01242 } else { 01243 if (!(frame->subclass & ast->nativeformats)) { 01244 ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n", 01245 frame->subclass, ast->nativeformats, ast->readformat, ast->writeformat); 01246 return -1; 01247 } 01248 } 01249 if (sub) { 01250 ast_mutex_lock(&sub->lock); 01251 if ((sub->parent->sub == sub) || !sub->parent->singlepath) { 01252 if (sub->rtp) { 01253 res = ast_rtp_write(sub->rtp, frame); 01254 } 01255 } 01256 ast_mutex_unlock(&sub->lock); 01257 } 01258 return res; 01259 }
static int mgcpsock_read | ( | int * | id, | |
int | fd, | |||
short | events, | |||
void * | ignore | |||
) | [static] |
Definition at line 3352 of file chan_mgcp.c.
References ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_SCHED_DEL, ast_strlen_zero(), ast_verbose(), mgcp_request::data, mgcp_request::endpoint, errno, find_and_retrans(), find_subchannel_and_lock(), free, handle_request(), handle_response(), mgcp_request::headers, mgcp_request::identifier, mgcp_request::len, len, mgcp_subchannel::lock, LOG_DEBUG, LOG_NOTICE, LOG_WARNING, mgcp_gateway::msgs, mgcp_gateway::msgs_lock, mgcp_gateway::name, mgcp_message::next, mgcp_message::owner_ep, mgcp_message::owner_sub, mgcp_endpoint::parent, mgcp_subchannel::parent, parse(), mgcp_gateway::retransid, mgcp_message::seqno, mgcp_request::verb, and mgcp_request::version.
Referenced by do_monitor().
03353 { 03354 struct mgcp_request req; 03355 struct sockaddr_in sin; 03356 struct mgcp_subchannel *sub; 03357 int res; 03358 socklen_t len; 03359 int result; 03360 int ident; 03361 len = sizeof(sin); 03362 memset(&req, 0, sizeof(req)); 03363 res = recvfrom(mgcpsock, req.data, sizeof(req.data) - 1, 0, (struct sockaddr *)&sin, &len); 03364 if (res < 0) { 03365 if (errno != ECONNREFUSED) 03366 ast_log(LOG_WARNING, "Recv error: %s\n", strerror(errno)); 03367 return 1; 03368 } 03369 req.data[res] = '\0'; 03370 req.len = res; 03371 if (mgcpdebug) { 03372 ast_verbose("MGCP read: \n%s\nfrom %s:%d\n", req.data, ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port)); 03373 } 03374 parse(&req); 03375 if (req.headers < 1) { 03376 /* Must have at least one header */ 03377 return 1; 03378 } 03379 if (ast_strlen_zero(req.identifier)) { 03380 ast_log(LOG_NOTICE, "Message from %s missing identifier\n", ast_inet_ntoa(sin.sin_addr)); 03381 return 1; 03382 } 03383 03384 if (sscanf(req.verb, "%d", &result) && sscanf(req.identifier, "%d", &ident)) { 03385 /* Try to find who this message is for, if it's important */ 03386 sub = find_subchannel_and_lock(NULL, ident, &sin); 03387 if (sub) { 03388 struct mgcp_gateway *gw = sub->parent->parent; 03389 struct mgcp_message *cur, *prev; 03390 03391 ast_mutex_unlock(&sub->lock); 03392 ast_mutex_lock(&gw->msgs_lock); 03393 for (prev = NULL, cur = gw->msgs; cur; prev = cur, cur = cur->next) { 03394 if (cur->seqno == ident) { 03395 ast_log(LOG_DEBUG, "Got response back on transaction %d\n", ident); 03396 if (prev) 03397 prev->next = cur->next; 03398 else 03399 gw->msgs = cur->next; 03400 break; 03401 } 03402 } 03403 03404 /* stop retrans timer if the queue is empty */ 03405 if (!gw->msgs) { 03406 AST_SCHED_DEL(sched, gw->retransid); 03407 } 03408 03409 ast_mutex_unlock(&gw->msgs_lock); 03410 if (cur) { 03411 handle_response(cur->owner_ep, cur->owner_sub, result, ident, &req); 03412 free(cur); 03413 return 1; 03414 } 03415 03416 ast_log(LOG_NOTICE, "Got response back on [%s] for transaction %d we aren't sending?\n", 03417 gw->name, ident); 03418 } 03419 } else { 03420 if (ast_strlen_zero(req.endpoint) || 03421 ast_strlen_zero(req.version) || 03422 ast_strlen_zero(req.verb)) { 03423 ast_log(LOG_NOTICE, "Message must have a verb, an idenitifier, version, and endpoint\n"); 03424 return 1; 03425 } 03426 /* Process request, with iflock held */ 03427 sub = find_subchannel_and_lock(req.endpoint, 0, &sin); 03428 if (sub) { 03429 /* look first to find a matching response in the queue */ 03430 if (!find_and_retrans(sub, &req)) 03431 /* pass the request off to the currently mastering subchannel */ 03432 handle_request(sub, &req, &sin); 03433 ast_mutex_unlock(&sub->lock); 03434 } 03435 } 03436 return 1; 03437 }
static void parse | ( | struct mgcp_request * | req | ) | [static] |
Definition at line 1735 of file chan_mgcp.c.
References ast_log(), ast_strlen_zero(), ast_verbose(), mgcp_request::data, mgcp_request::endpoint, f, mgcp_request::header, mgcp_request::headers, mgcp_request::identifier, mgcp_request::line, mgcp_request::lines, LOG_WARNING, MGCP_MAX_HEADERS, MGCP_MAX_LINES, mgcp_request::verb, and mgcp_request::version.
Referenced by __login_exec(), acf_channel_read(), add_agent(), app_exec(), aqm_exec(), ast_hint_state_changed(), ast_parse_allow_disallow(), astman_get_variables(), cut_internal(), dictate_exec(), directory_exec(), find_conf(), function_agent(), get_in_brackets(), isAnsweringMachine(), mgcpsock_read(), mixmonitor_exec(), pbx_builtin_background(), pbx_builtin_waitexten(), pqm_exec(), privacy_exec(), ql_exec(), queue_exec(), reload_agents(), reload_queues(), rqm_exec(), sayunixtime_exec(), sendimage_exec(), sendtext_exec(), smdi_msg_read(), smdi_msg_retrieve_read(), transfer_exec(), upqm_exec(), userevent_exec(), and vm_execmain().
01736 { 01737 /* Divide fields by NULL's */ 01738 char *c; 01739 int f = 0; 01740 c = req->data; 01741 01742 /* First header starts immediately */ 01743 req->header[f] = c; 01744 while(*c) { 01745 if (*c == '\n') { 01746 /* We've got a new header */ 01747 *c = 0; 01748 #if 0 01749 printf("Header: %s (%d)\n", req->header[f], strlen(req->header[f])); 01750 #endif 01751 if (ast_strlen_zero(req->header[f])) { 01752 /* Line by itself means we're now in content */ 01753 c++; 01754 break; 01755 } 01756 if (f >= MGCP_MAX_HEADERS - 1) { 01757 ast_log(LOG_WARNING, "Too many MGCP headers...\n"); 01758 } else 01759 f++; 01760 req->header[f] = c + 1; 01761 } else if (*c == '\r') { 01762 /* Ignore but eliminate \r's */ 01763 *c = 0; 01764 } 01765 c++; 01766 } 01767 /* Check for last header */ 01768 if (!ast_strlen_zero(req->header[f])) 01769 f++; 01770 req->headers = f; 01771 /* Now we process any mime content */ 01772 f = 0; 01773 req->line[f] = c; 01774 while(*c) { 01775 if (*c == '\n') { 01776 /* We've got a new line */ 01777 *c = 0; 01778 #if 0 01779 printf("Line: %s (%d)\n", req->line[f], strlen(req->line[f])); 01780 #endif 01781 if (f >= MGCP_MAX_LINES - 1) { 01782 ast_log(LOG_WARNING, "Too many SDP lines...\n"); 01783 } else 01784 f++; 01785 req->line[f] = c + 1; 01786 } else if (*c == '\r') { 01787 /* Ignore and eliminate \r's */ 01788 *c = 0; 01789 } 01790 c++; 01791 } 01792 /* Check for last line */ 01793 if (!ast_strlen_zero(req->line[f])) 01794 f++; 01795 req->lines = f; 01796 /* Parse up the initial header */ 01797 c = req->header[0]; 01798 while(*c && *c < 33) c++; 01799 /* First the verb */ 01800 req->verb = c; 01801 while(*c && (*c > 32)) c++; 01802 if (*c) { 01803 *c = '\0'; 01804 c++; 01805 while(*c && (*c < 33)) c++; 01806 req->identifier = c; 01807 while(*c && (*c > 32)) c++; 01808 if (*c) { 01809 *c = '\0'; 01810 c++; 01811 while(*c && (*c < 33)) c++; 01812 req->endpoint = c; 01813 while(*c && (*c > 32)) c++; 01814 if (*c) { 01815 *c = '\0'; 01816 c++; 01817 while(*c && (*c < 33)) c++; 01818 req->version = c; 01819 while(*c && (*c > 32)) c++; 01820 while(*c && (*c < 33)) c++; 01821 while(*c && (*c > 32)) c++; 01822 *c = '\0'; 01823 } 01824 } 01825 } 01826 01827 if (mgcpdebug) { 01828 ast_verbose("Verb: '%s', Identifier: '%s', Endpoint: '%s', Version: '%s'\n", 01829 req->verb, req->identifier, req->endpoint, req->version); 01830 ast_verbose("%d headers, %d lines\n", req->headers, req->lines); 01831 } 01832 if (*c) 01833 ast_log(LOG_WARNING, "Odd content, extra stuff left over ('%s')\n", c); 01834 }
static int process_sdp | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | req | |||
) | [static] |
Definition at line 1836 of file chan_mgcp.c.
References ast_gethostbyname(), ast_inet_ntoa(), ast_log(), ast_rtp_get_current_formats(), ast_rtp_pt_clear(), ast_rtp_set_m_type(), ast_rtp_set_peer(), ast_rtp_set_rtpmap_type(), ast_strdupa, ast_strlen_zero(), ast_verbose(), mgcp_endpoint::capability, get_sdp(), get_sdp_iterate(), hp, len, LOG_WARNING, mgcp_endpoint::nonCodecCapability, mgcp_subchannel::parent, portno, mgcp_subchannel::rtp, and sdpLineNum_iterator_init().
Referenced by handle_request(), handle_request_invite(), handle_response(), and handle_response_invite().
01837 { 01838 char *m; 01839 char *c; 01840 char *a; 01841 char host[258]; 01842 int len; 01843 int portno; 01844 int peercapability, peerNonCodecCapability; 01845 struct sockaddr_in sin; 01846 char *codecs; 01847 struct ast_hostent ahp; struct hostent *hp; 01848 int codec, codec_count=0; 01849 int iterator; 01850 struct mgcp_endpoint *p = sub->parent; 01851 01852 /* Get codec and RTP info from SDP */ 01853 m = get_sdp(req, "m"); 01854 c = get_sdp(req, "c"); 01855 if (ast_strlen_zero(m) || ast_strlen_zero(c)) { 01856 ast_log(LOG_WARNING, "Insufficient information for SDP (m = '%s', c = '%s')\n", m, c); 01857 return -1; 01858 } 01859 if (sscanf(c, "IN IP4 %256s", host) != 1) { 01860 ast_log(LOG_WARNING, "Invalid host in c= line, '%s'\n", c); 01861 return -1; 01862 } 01863 /* XXX This could block for a long time, and block the main thread! XXX */ 01864 hp = ast_gethostbyname(host, &ahp); 01865 if (!hp) { 01866 ast_log(LOG_WARNING, "Unable to lookup host in c= line, '%s'\n", c); 01867 return -1; 01868 } 01869 if (sscanf(m, "audio %d RTP/AVP %n", &portno, &len) != 1) { 01870 ast_log(LOG_WARNING, "Unable to determine port number for RTP in '%s'\n", m); 01871 return -1; 01872 } 01873 sin.sin_family = AF_INET; 01874 memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr)); 01875 sin.sin_port = htons(portno); 01876 ast_rtp_set_peer(sub->rtp, &sin); 01877 #if 0 01878 printf("Peer RTP is at port %s:%d\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port)); 01879 #endif 01880 /* Scan through the RTP payload types specified in a "m=" line: */ 01881 ast_rtp_pt_clear(sub->rtp); 01882 codecs = ast_strdupa(m + len); 01883 while (!ast_strlen_zero(codecs)) { 01884 if (sscanf(codecs, "%d%n", &codec, &len) != 1) { 01885 if (codec_count) 01886 break; 01887 ast_log(LOG_WARNING, "Error in codec string '%s' at '%s'\n", m, codecs); 01888 return -1; 01889 } 01890 ast_rtp_set_m_type(sub->rtp, codec); 01891 codec_count++; 01892 codecs += len; 01893 } 01894 01895 /* Next, scan through each "a=rtpmap:" line, noting each */ 01896 /* specified RTP payload type (with corresponding MIME subtype): */ 01897 sdpLineNum_iterator_init(&iterator); 01898 while ((a = get_sdp_iterate(&iterator, req, "a"))[0] != '\0') { 01899 char* mimeSubtype = ast_strdupa(a); /* ensures we have enough space */ 01900 if (sscanf(a, "rtpmap: %u %[^/]/", &codec, mimeSubtype) != 2) 01901 continue; 01902 /* Note: should really look at the 'freq' and '#chans' params too */ 01903 ast_rtp_set_rtpmap_type(sub->rtp, codec, "audio", mimeSubtype, 0); 01904 } 01905 01906 /* Now gather all of the codecs that were asked for: */ 01907 ast_rtp_get_current_formats(sub->rtp, &peercapability, &peerNonCodecCapability); 01908 p->capability = capability & peercapability; 01909 if (mgcpdebug) { 01910 ast_verbose("Capabilities: us - %d, them - %d, combined - %d\n", 01911 capability, peercapability, p->capability); 01912 ast_verbose("Non-codec capabilities: us - %d, them - %d, combined - %d\n", 01913 nonCodecCapability, peerNonCodecCapability, p->nonCodecCapability); 01914 } 01915 if (!p->capability) { 01916 ast_log(LOG_WARNING, "No compatible codecs!\n"); 01917 return -1; 01918 } 01919 return 0; 01920 }
static void prune_gateways | ( | void | ) | [static] |
Definition at line 4073 of file chan_mgcp.c.
References ast_mutex_lock(), ast_mutex_unlock(), mgcp_gateway::delme, mgcp_endpoint::delme, destroy_endpoint(), destroy_gateway(), mgcp_gateway::endpoints, gateways, mgcp_gateway::next, mgcp_endpoint::next, and t.
Referenced by reload_config(), and unload_module().
04074 { 04075 struct mgcp_gateway *g, *z, *r; 04076 struct mgcp_endpoint *e, *p, *t; 04077 04078 ast_mutex_lock(&gatelock); 04079 04080 /* prune gateways */ 04081 for (z = NULL, g = gateways; g;) { 04082 /* prune endpoints */ 04083 for (p = NULL, e = g->endpoints; e; ) { 04084 if (e->delme || g->delme) { 04085 t = e; 04086 e = e->next; 04087 if (!p) 04088 g->endpoints = e; 04089 else 04090 p->next = e; 04091 destroy_endpoint(t); 04092 } else { 04093 p = e; 04094 e = e->next; 04095 } 04096 } 04097 04098 if (g->delme) { 04099 r = g; 04100 g = g->next; 04101 if (!z) 04102 gateways = g; 04103 else 04104 z->next = g; 04105 04106 destroy_gateway(r); 04107 } else { 04108 z = g; 04109 g = g->next; 04110 } 04111 } 04112 04113 ast_mutex_unlock(&gatelock); 04114 }
static int reload | ( | void | ) | [static] |
Definition at line 4356 of file chan_mgcp.c.
References mgcp_reload().
04357 { 04358 mgcp_reload(0, 0, NULL); 04359 return 0; 04360 }
static int reload_config | ( | void | ) | [static] |
Definition at line 4116 of file chan_mgcp.c.
References __ourip, ast_category_browse(), ast_config_destroy(), ast_config_load(), ast_getformatbyname(), ast_gethostbyname(), ast_inet_ntoa(), ast_io_remove(), ast_io_wait(), ast_jb_read_conf(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_sched_runq(), ast_variable_browse(), ast_verbose(), bindaddr, build_gateway(), DEFAULT_MGCP_CA_PORT, mgcp_endpoint::delme, mgcp_gateway::delme, mgcp_gateway::endpoints, errno, format, gateways, global_jbconf, hp, IPTOS_MINCOST, ast_variable::lineno, LOG_NOTICE, LOG_WARNING, mgcp_endpoint::name, mgcp_gateway::name, ast_variable::name, mgcp_endpoint::needaudit, mgcp_gateway::next, mgcp_endpoint::next, ast_variable::next, option_verbose, prune_gateways(), transmit_audit_endpoint(), ast_variable::value, VERBOSE_PREFIX_2, and VERBOSE_PREFIX_3.
04117 { 04118 struct ast_config *cfg; 04119 struct ast_variable *v; 04120 struct mgcp_gateway *g; 04121 struct mgcp_endpoint *e; 04122 char *cat; 04123 struct ast_hostent ahp; 04124 struct hostent *hp; 04125 int format; 04126 04127 if (gethostname(ourhost, sizeof(ourhost)-1)) { 04128 ast_log(LOG_WARNING, "Unable to get hostname, MGCP disabled\n"); 04129 return 0; 04130 } 04131 cfg = ast_config_load(config); 04132 04133 /* We *must* have a config file otherwise stop immediately */ 04134 if (!cfg) { 04135 ast_log(LOG_NOTICE, "Unable to load config %s, MGCP disabled\n", config); 04136 return 0; 04137 } 04138 memset(&bindaddr, 0, sizeof(bindaddr)); 04139 dtmfmode = 0; 04140 04141 /* Copy the default jb config over global_jbconf */ 04142 memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf)); 04143 04144 v = ast_variable_browse(cfg, "general"); 04145 while (v) { 04146 /* handle jb conf */ 04147 if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) { 04148 v = v->next; 04149 continue; 04150 } 04151 04152 /* Create the interface list */ 04153 if (!strcasecmp(v->name, "bindaddr")) { 04154 if (!(hp = ast_gethostbyname(v->value, &ahp))) { 04155 ast_log(LOG_WARNING, "Invalid address: %s\n", v->value); 04156 } else { 04157 memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr)); 04158 } 04159 } else if (!strcasecmp(v->name, "allow")) { 04160 format = ast_getformatbyname(v->value); 04161 if (format < 1) 04162 ast_log(LOG_WARNING, "Cannot allow unknown format '%s'\n", v->value); 04163 else 04164 capability |= format; 04165 } else if (!strcasecmp(v->name, "disallow")) { 04166 format = ast_getformatbyname(v->value); 04167 if (format < 1) 04168 ast_log(LOG_WARNING, "Cannot disallow unknown format '%s'\n", v->value); 04169 else 04170 capability &= ~format; 04171 } else if (!strcasecmp(v->name, "tos")) { 04172 if (sscanf(v->value, "%d", &format) == 1) 04173 tos = format & 0xff; 04174 else if (!strcasecmp(v->value, "lowdelay")) 04175 tos = IPTOS_LOWDELAY; 04176 else if (!strcasecmp(v->value, "throughput")) 04177 tos = IPTOS_THROUGHPUT; 04178 else if (!strcasecmp(v->value, "reliability")) 04179 tos = IPTOS_RELIABILITY; 04180 else if (!strcasecmp(v->value, "mincost")) 04181 tos = IPTOS_MINCOST; 04182 else if (!strcasecmp(v->value, "none")) 04183 tos = 0; 04184 else 04185 ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno); 04186 } else if (!strcasecmp(v->name, "port")) { 04187 if (sscanf(v->value, "%d", &ourport) == 1) { 04188 bindaddr.sin_port = htons(ourport); 04189 } else { 04190 ast_log(LOG_WARNING, "Invalid port number '%s' at line %d of %s\n", v->value, v->lineno, config); 04191 } 04192 } 04193 v = v->next; 04194 } 04195 04196 /* mark existing entries for deletion */ 04197 ast_mutex_lock(&gatelock); 04198 g = gateways; 04199 while (g) { 04200 g->delme = 1; 04201 e = g->endpoints; 04202 while (e) { 04203 e->delme = 1; 04204 e = e->next; 04205 } 04206 g = g->next; 04207 } 04208 ast_mutex_unlock(&gatelock); 04209 04210 cat = ast_category_browse(cfg, NULL); 04211 while(cat) { 04212 if (strcasecmp(cat, "general")) { 04213 ast_mutex_lock(&gatelock); 04214 g = build_gateway(cat, ast_variable_browse(cfg, cat)); 04215 if (g) { 04216 if (option_verbose > 2) { 04217 ast_verbose(VERBOSE_PREFIX_3 "Added gateway '%s'\n", g->name); 04218 } 04219 g->next = gateways; 04220 gateways = g; 04221 } 04222 ast_mutex_unlock(&gatelock); 04223 04224 /* FS: process queue and IO */ 04225 if (monitor_thread == pthread_self()) { 04226 if (sched) ast_sched_runq(sched); 04227 if (io) ast_io_wait(io, 10); 04228 } 04229 } 04230 cat = ast_category_browse(cfg, cat); 04231 } 04232 04233 /* prune deleted entries etc. */ 04234 prune_gateways(); 04235 04236 if (ntohl(bindaddr.sin_addr.s_addr)) { 04237 memcpy(&__ourip, &bindaddr.sin_addr, sizeof(__ourip)); 04238 } else { 04239 hp = ast_gethostbyname(ourhost, &ahp); 04240 if (!hp) { 04241 ast_log(LOG_WARNING, "Unable to get our IP address, MGCP disabled\n"); 04242 ast_config_destroy(cfg); 04243 return 0; 04244 } 04245 memcpy(&__ourip, hp->h_addr, sizeof(__ourip)); 04246 } 04247 if (!ntohs(bindaddr.sin_port)) 04248 bindaddr.sin_port = ntohs(DEFAULT_MGCP_CA_PORT); 04249 bindaddr.sin_family = AF_INET; 04250 ast_mutex_lock(&netlock); 04251 if (mgcpsock > -1) 04252 close(mgcpsock); 04253 04254 if (mgcpsock_read_id != NULL) 04255 ast_io_remove(io, mgcpsock_read_id); 04256 mgcpsock_read_id = NULL; 04257 04258 mgcpsock = socket(AF_INET, SOCK_DGRAM, 0); 04259 if (mgcpsock < 0) { 04260 ast_log(LOG_WARNING, "Unable to create MGCP socket: %s\n", strerror(errno)); 04261 } else { 04262 if (bind(mgcpsock, (struct sockaddr *)&bindaddr, sizeof(bindaddr)) < 0) { 04263 ast_log(LOG_WARNING, "Failed to bind to %s:%d: %s\n", 04264 ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port), 04265 strerror(errno)); 04266 close(mgcpsock); 04267 mgcpsock = -1; 04268 } else { 04269 if (option_verbose > 1) { 04270 ast_verbose(VERBOSE_PREFIX_2 "MGCP Listening on %s:%d\n", 04271 ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port)); 04272 ast_verbose(VERBOSE_PREFIX_2 "Using TOS bits %d\n", tos); 04273 } 04274 if (setsockopt(mgcpsock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos))) 04275 ast_log(LOG_WARNING, "Unable to set TOS to %d\n", tos); 04276 } 04277 } 04278 ast_mutex_unlock(&netlock); 04279 ast_config_destroy(cfg); 04280 04281 /* send audit only to the new endpoints */ 04282 g = gateways; 04283 while (g) { 04284 e = g->endpoints; 04285 while (e && e->needaudit) { 04286 e->needaudit = 0; 04287 transmit_audit_endpoint(e); 04288 ast_verbose(VERBOSE_PREFIX_3 "MGCP Auditing endpoint %s@%s for hookstate\n", e->name, g->name); 04289 e = e->next; 04290 } 04291 g = g->next; 04292 } 04293 04294 return 0; 04295 }
static int reqprep | ( | struct mgcp_request * | req, | |
struct mgcp_endpoint * | p, | |||
char * | verb | |||
) | [static] |
Definition at line 2013 of file chan_mgcp.c.
References init_req().
Referenced by transmit_audit_endpoint(), transmit_connect_with_sdp(), transmit_connection_del(), transmit_connection_del_w_params(), transmit_info_with_digit(), transmit_info_with_vidupdate(), transmit_invite(), transmit_message_with_text(), transmit_modify_request(), transmit_modify_with_sdp(), transmit_notify_request(), transmit_notify_request_with_callerid(), transmit_notify_with_sipfrag(), transmit_refer(), transmit_reinvite_with_sdp(), transmit_reinvite_with_t38_sdp(), transmit_request(), transmit_request_with_auth(), and transmit_state_notify().
02014 { 02015 memset(req, 0, sizeof(struct mgcp_request)); 02016 oseq++; 02017 if (oseq > 999999999) 02018 oseq = 1; 02019 init_req(p, req, verb); 02020 return 0; 02021 }
static int resend_response | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_response * | resp | |||
) | [static] |
Definition at line 504 of file chan_mgcp.c.
References __mgcp_xmit(), mgcp_gateway::addr, ast_inet_ntoa(), ast_verbose(), mgcp_response::buf, mgcp_response::len, mgcp_endpoint::parent, and mgcp_subchannel::parent.
Referenced by find_and_retrans().
00505 { 00506 struct mgcp_endpoint *p = sub->parent; 00507 int res; 00508 if (mgcpdebug) { 00509 ast_verbose("Retransmitting:\n%s\n to %s:%d\n", resp->buf, ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 00510 } 00511 res = __mgcp_xmit(p->parent, resp->buf, resp->len); 00512 if (res > 0) 00513 res = 0; 00514 return res; 00515 }
static int respprep | ( | struct mgcp_request * | resp, | |
struct mgcp_endpoint * | p, | |||
char * | msg, | |||
struct mgcp_request * | req, | |||
char * | msgrest | |||
) | [static] |
Definition at line 2006 of file chan_mgcp.c.
References init_resp().
Referenced by __transmit_response(), transmit_response(), transmit_response_with_allow(), transmit_response_with_auth(), transmit_response_with_date(), transmit_response_with_sdp(), transmit_response_with_t38_sdp(), and transmit_response_with_unsupported().
02007 { 02008 memset(resp, 0, sizeof(*resp)); 02009 init_resp(resp, msg, req, msgrest); 02010 return 0; 02011 }
static int restart_monitor | ( | void | ) | [static] |
Definition at line 3527 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_pthread_create_background, AST_PTHREADT_NULL, AST_PTHREADT_STOP, do_monitor(), LOG_ERROR, and LOG_WARNING.
03528 { 03529 /* If we're supposed to be stopped -- stay stopped */ 03530 if (monitor_thread == AST_PTHREADT_STOP) 03531 return 0; 03532 if (ast_mutex_lock(&monlock)) { 03533 ast_log(LOG_WARNING, "Unable to lock monitor\n"); 03534 return -1; 03535 } 03536 if (monitor_thread == pthread_self()) { 03537 ast_mutex_unlock(&monlock); 03538 ast_log(LOG_WARNING, "Cannot kill myself\n"); 03539 return -1; 03540 } 03541 if (monitor_thread != AST_PTHREADT_NULL) { 03542 /* Wake up the thread */ 03543 pthread_kill(monitor_thread, SIGURG); 03544 } else { 03545 /* Start a new monitor */ 03546 if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) { 03547 ast_mutex_unlock(&monlock); 03548 ast_log(LOG_ERROR, "Unable to start monitor thread.\n"); 03549 return -1; 03550 } 03551 } 03552 ast_mutex_unlock(&monlock); 03553 return 0; 03554 }
static int retrans_pkt | ( | const void * | data | ) | [static] |
Definition at line 607 of file chan_mgcp.c.
References __mgcp_xmit(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), free, handle_response(), LOG_WARNING, MAX_RETRANS, mgcp_gateway::msgs, mgcp_gateway::msgs_lock, mgcp_gateway::name, mgcp_message::next, mgcp_message::retrans, and mgcp_gateway::retransid.
Referenced by __sip_reliable_xmit(), and mgcp_postrequest().
00608 { 00609 struct mgcp_gateway *gw = (struct mgcp_gateway *)data; 00610 struct mgcp_message *cur, *exq = NULL, *w, *prev; 00611 int res = 0; 00612 00613 /* find out expired msgs */ 00614 ast_mutex_lock(&gw->msgs_lock); 00615 00616 prev = NULL, cur = gw->msgs; 00617 while (cur) { 00618 if (cur->retrans < MAX_RETRANS) { 00619 cur->retrans++; 00620 if (mgcpdebug) { 00621 ast_verbose("Retransmitting #%d transaction %u on [%s]\n", 00622 cur->retrans, cur->seqno, gw->name); 00623 } 00624 __mgcp_xmit(gw, cur->buf, cur->len); 00625 00626 prev = cur; 00627 cur = cur->next; 00628 } else { 00629 if (prev) 00630 prev->next = cur->next; 00631 else 00632 gw->msgs = cur->next; 00633 00634 ast_log(LOG_WARNING, "Maximum retries exceeded for transaction %u on [%s]\n", 00635 cur->seqno, gw->name); 00636 00637 w = cur; 00638 cur = cur->next; 00639 00640 if (exq) { 00641 w->next = exq; 00642 } else { 00643 w->next = NULL; 00644 } 00645 exq = w; 00646 } 00647 } 00648 00649 if (!gw->msgs) { 00650 gw->retransid = -1; 00651 res = 0; 00652 } else { 00653 res = 1; 00654 } 00655 ast_mutex_unlock(&gw->msgs_lock); 00656 00657 while (exq) { 00658 cur = exq; 00659 /* time-out transaction */ 00660 handle_response(cur->owner_ep, cur->owner_sub, 406, cur->seqno, NULL); 00661 exq = exq->next; 00662 free(cur); 00663 } 00664 00665 return res; 00666 }
static void sdpLineNum_iterator_init | ( | int * | iterator | ) | [static] |
static int send_request | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub, | |||
struct mgcp_request * | req, | |||
unsigned int | seqno | |||
) | [static] |
Definition at line 735 of file chan_mgcp.c.
References mgcp_gateway::addr, ast_inet_ntoa(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), mgcp_request::cmd, mgcp_endpoint::cmd_queue, mgcp_endpoint::cmd_queue_lock, mgcp_subchannel::cx_queue, mgcp_subchannel::cx_queue_lock, mgcp_request::data, free, mgcp_request::len, LOG_DEBUG, LOG_WARNING, malloc, MGCP_CMD_CRCX, MGCP_CMD_DLCX, MGCP_CMD_MDCX, MGCP_CMD_RQNT, mgcp_postrequest(), mgcp_request::next, mgcp_endpoint::parent, mgcp_endpoint::rqnt_queue, mgcp_endpoint::rqnt_queue_lock, mgcp_endpoint::slowsequence, and t.
Referenced by transmit_audit_endpoint(), transmit_connect_with_sdp(), transmit_connection_del(), transmit_connection_del_w_params(), transmit_info_with_digit(), transmit_info_with_vidupdate(), transmit_invite(), transmit_message_with_text(), transmit_modify_request(), transmit_modify_with_sdp(), transmit_notify_request(), transmit_notify_request_with_callerid(), transmit_notify_with_mwi(), transmit_notify_with_sipfrag(), transmit_refer(), transmit_register(), transmit_reinvite_with_sdp(), transmit_reinvite_with_t38_sdp(), transmit_request(), transmit_request_with_auth(), transmit_sip_request(), and transmit_state_notify().
00737 { 00738 int res = 0; 00739 struct mgcp_request **queue, *q, *r, *t; 00740 ast_mutex_t *l; 00741 00742 ast_log(LOG_DEBUG, "Slow sequence is %d\n", p->slowsequence); 00743 if (p->slowsequence) { 00744 queue = &p->cmd_queue; 00745 l = &p->cmd_queue_lock; 00746 ast_mutex_lock(l); 00747 } else { 00748 switch (req->cmd) { 00749 case MGCP_CMD_DLCX: 00750 queue = &sub->cx_queue; 00751 l = &sub->cx_queue_lock; 00752 ast_mutex_lock(l); 00753 q = sub->cx_queue; 00754 /* delete pending cx cmds */ 00755 while (q) { 00756 r = q->next; 00757 free(q); 00758 q = r; 00759 } 00760 *queue = NULL; 00761 break; 00762 00763 case MGCP_CMD_CRCX: 00764 case MGCP_CMD_MDCX: 00765 queue = &sub->cx_queue; 00766 l = &sub->cx_queue_lock; 00767 ast_mutex_lock(l); 00768 break; 00769 00770 case MGCP_CMD_RQNT: 00771 queue = &p->rqnt_queue; 00772 l = &p->rqnt_queue_lock; 00773 ast_mutex_lock(l); 00774 break; 00775 00776 default: 00777 queue = &p->cmd_queue; 00778 l = &p->cmd_queue_lock; 00779 ast_mutex_lock(l); 00780 break; 00781 } 00782 } 00783 00784 r = (struct mgcp_request *) malloc (sizeof(struct mgcp_request)); 00785 if (!r) { 00786 ast_log(LOG_WARNING, "Cannot post MGCP request: insufficient memory\n"); 00787 ast_mutex_unlock(l); 00788 return -1; 00789 } 00790 memcpy(r, req, sizeof(struct mgcp_request)); 00791 00792 if (!(*queue)) { 00793 if (mgcpdebug) { 00794 ast_verbose("Posting Request:\n%s to %s:%d\n", req->data, 00795 ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 00796 } 00797 00798 res = mgcp_postrequest(p, sub, req->data, req->len, seqno); 00799 } else { 00800 if (mgcpdebug) { 00801 ast_verbose("Queueing Request:\n%s to %s:%d\n", req->data, 00802 ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 00803 } 00804 } 00805 00806 /* XXX find tail. We could also keep tail in the data struct for faster access */ 00807 for (t = *queue; t && t->next; t = t->next); 00808 00809 r->next = NULL; 00810 if (t) 00811 t->next = r; 00812 else 00813 *queue = r; 00814 00815 ast_mutex_unlock(l); 00816 00817 return res; 00818 }
static int send_response | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | req | |||
) | [static] |
Definition at line 517 of file chan_mgcp.c.
References __mgcp_xmit(), mgcp_gateway::addr, ast_inet_ntoa(), ast_verbose(), mgcp_request::data, mgcp_request::len, mgcp_endpoint::parent, and mgcp_subchannel::parent.
Referenced by __transmit_response(), transmit_response(), transmit_response_with_allow(), transmit_response_with_auth(), transmit_response_with_date(), transmit_response_with_sdp(), transmit_response_with_t38_sdp(), and transmit_response_with_unsupported().
00518 { 00519 struct mgcp_endpoint *p = sub->parent; 00520 int res; 00521 if (mgcpdebug) { 00522 ast_verbose("Transmitting:\n%s\n to %s:%d\n", req->data, ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 00523 } 00524 res = __mgcp_xmit(p->parent, req->data, req->len); 00525 if (res > 0) 00526 res = 0; 00527 return res; 00528 }
static void start_rtp | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 2624 of file chan_mgcp.c.
References ast_mutex_lock(), ast_mutex_unlock(), ast_random(), ast_rtp_destroy(), ast_rtp_fd(), ast_rtp_new_with_bindaddr(), ast_rtp_set_callback(), ast_rtp_set_data(), ast_rtp_setnat(), bindaddr, mgcp_subchannel::callid, ast_channel::fds, mgcp_subchannel::lock, mgcp_subchannel::nat, mgcp_subchannel::owner, mgcp_subchannel::rtp, transmit_connect_with_sdp(), and mgcp_subchannel::txident.
Referenced by handle_hd_hf(), handle_offhook_message(), handle_response(), handle_soft_key_event_message(), handle_stimulus_message(), mgcp_answer(), mgcp_call(), mgcp_ss(), skinny_answer(), and skinny_newcall().
02625 { 02626 ast_mutex_lock(&sub->lock); 02627 /* check again to be on the safe side */ 02628 if (sub->rtp) { 02629 ast_rtp_destroy(sub->rtp); 02630 sub->rtp = NULL; 02631 } 02632 /* Allocate the RTP now */ 02633 sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr); 02634 if (sub->rtp && sub->owner) 02635 sub->owner->fds[0] = ast_rtp_fd(sub->rtp); 02636 if (sub->rtp) 02637 ast_rtp_setnat(sub->rtp, sub->nat); 02638 #if 0 02639 ast_rtp_set_callback(p->rtp, rtpready); 02640 ast_rtp_set_data(p->rtp, p); 02641 #endif 02642 /* Make a call*ID */ 02643 snprintf(sub->callid, sizeof(sub->callid), "%08lx%s", ast_random(), sub->txident); 02644 /* Transmit the connection create */ 02645 transmit_connect_with_sdp(sub, NULL); 02646 ast_mutex_unlock(&sub->lock); 02647 }
static int transmit_audit_endpoint | ( | struct mgcp_endpoint * | p | ) | [static] |
Definition at line 2333 of file chan_mgcp.c.
References add_header(), mgcp_request::cmd, MGCP_CMD_AUEP, reqprep(), send_request(), and mgcp_request::trid.
Referenced by handle_request(), mgcp_audit_endpoint(), and reload_config().
02334 { 02335 struct mgcp_request resp; 02336 reqprep(&resp, p, "AUEP"); 02337 /* removed unknown param VS */ 02338 /*add_header(&resp, "F", "A,R,D,S,X,N,I,T,O,ES,E,MD,M");*/ 02339 add_header(&resp, "F", "A"); 02340 /* fill in new fields */ 02341 resp.cmd = MGCP_CMD_AUEP; 02342 resp.trid = oseq; 02343 return send_request(p, NULL, &resp, oseq); /* SC */ 02344 }
static int transmit_connect_with_sdp | ( | struct mgcp_subchannel * | sub, | |
struct ast_rtp * | rtp | |||
) | [static] |
Definition at line 2179 of file chan_mgcp.c.
References add_header(), add_sdp(), AST_FORMAT_MAX_AUDIO, ast_rtp_lookup_mime_subtype(), ast_verbose(), mgcp_subchannel::callid, mgcp_endpoint::capability, mgcp_request::cmd, mgcp_subchannel::cxmode, mgcp_subchannel::id, MGCP_CMD_CRCX, mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), send_request(), mgcp_request::trid, mgcp_subchannel::txident, and VERBOSE_PREFIX_3.
Referenced by start_rtp().
02180 { 02181 struct mgcp_request resp; 02182 char local[256]; 02183 char tmp[80]; 02184 int x; 02185 struct mgcp_endpoint *p = sub->parent; 02186 02187 snprintf(local, sizeof(local), "p:20"); 02188 for (x=1;x<= AST_FORMAT_MAX_AUDIO; x <<= 1) { 02189 if (p->capability & x) { 02190 snprintf(tmp, sizeof(tmp), ", a:%s", ast_rtp_lookup_mime_subtype(1, x, 0)); 02191 strncat(local, tmp, sizeof(local) - strlen(local) - 1); 02192 } 02193 } 02194 if (mgcpdebug) { 02195 ast_verbose(VERBOSE_PREFIX_3 "Creating connection for %s@%s-%d in cxmode: %s callid: %s\n", 02196 p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode], sub->callid); 02197 } 02198 reqprep(&resp, p, "CRCX"); 02199 add_header(&resp, "C", sub->callid); 02200 add_header(&resp, "L", local); 02201 add_header(&resp, "M", mgcp_cxmodes[sub->cxmode]); 02202 /* X header should not be sent. kept for compatibility */ 02203 add_header(&resp, "X", sub->txident); 02204 /*add_header(&resp, "S", "");*/ 02205 add_sdp(&resp, sub, rtp); 02206 /* fill in new fields */ 02207 resp.cmd = MGCP_CMD_CRCX; 02208 resp.trid = oseq; 02209 return send_request(p, sub, &resp, oseq); /* SC */ 02210 }
static int transmit_connection_del | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 2346 of file chan_mgcp.c.
References add_header(), ast_verbose(), mgcp_subchannel::callid, mgcp_request::cmd, mgcp_subchannel::cxident, mgcp_subchannel::cxmode, mgcp_subchannel::id, MGCP_CMD_DLCX, mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), send_request(), mgcp_request::trid, mgcp_subchannel::txident, and VERBOSE_PREFIX_3.
Referenced by destroy_endpoint(), handle_request(), handle_response(), mgcp_hangup(), and unalloc_sub().
02347 { 02348 struct mgcp_endpoint *p = sub->parent; 02349 struct mgcp_request resp; 02350 02351 if (mgcpdebug) { 02352 ast_verbose(VERBOSE_PREFIX_3 "Delete connection %s %s@%s-%d with new mode: %s on callid: %s\n", 02353 sub->cxident, p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode], sub->callid); 02354 } 02355 reqprep(&resp, p, "DLCX"); 02356 /* check if call id is avail */ 02357 if (sub->callid[0]) 02358 add_header(&resp, "C", sub->callid); 02359 /* X header should not be sent. kept for compatibility */ 02360 add_header(&resp, "X", sub->txident); 02361 /* check if cxident is avail */ 02362 if (sub->cxident[0]) 02363 add_header(&resp, "I", sub->cxident); 02364 /* fill in new fields */ 02365 resp.cmd = MGCP_CMD_DLCX; 02366 resp.trid = oseq; 02367 return send_request(p, sub, &resp, oseq); /* SC */ 02368 }
static int transmit_connection_del_w_params | ( | struct mgcp_endpoint * | p, | |
char * | callid, | |||
char * | cxident | |||
) | [static] |
Definition at line 2370 of file chan_mgcp.c.
References add_header(), ast_verbose(), mgcp_request::cmd, MGCP_CMD_DLCX, mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::parent, reqprep(), send_request(), mgcp_endpoint::sub, mgcp_request::trid, and VERBOSE_PREFIX_3.
Referenced by handle_response().
02371 { 02372 struct mgcp_request resp; 02373 02374 if (mgcpdebug) { 02375 ast_verbose(VERBOSE_PREFIX_3 "Delete connection %s %s@%s on callid: %s\n", 02376 cxident ? cxident : "", p->name, p->parent->name, callid ? callid : ""); 02377 } 02378 reqprep(&resp, p, "DLCX"); 02379 /* check if call id is avail */ 02380 if (callid && *callid) 02381 add_header(&resp, "C", callid); 02382 /* check if cxident is avail */ 02383 if (cxident && *cxident) 02384 add_header(&resp, "I", cxident); 02385 /* fill in new fields */ 02386 resp.cmd = MGCP_CMD_DLCX; 02387 resp.trid = oseq; 02388 return send_request(p, p->sub, &resp, oseq); 02389 }
static int transmit_modify_request | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 2288 of file chan_mgcp.c.
References add_header(), add_header_offhook(), ast_strlen_zero(), ast_verbose(), mgcp_subchannel::callid, mgcp_request::cmd, mgcp_subchannel::cxident, mgcp_subchannel::cxmode, mgcp_endpoint::hookstate, mgcp_subchannel::id, MGCP_CMD_MDCX, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), send_request(), mgcp_request::trid, mgcp_subchannel::txident, and VERBOSE_PREFIX_3.
Referenced by handle_hd_hf(), handle_request(), mgcp_answer(), mgcp_call(), and mgcp_hangup().
02289 { 02290 struct mgcp_request resp; 02291 struct mgcp_endpoint *p = sub->parent; 02292 02293 if (ast_strlen_zero(sub->cxident)) { 02294 /* We don't have a CXident yet, store the destination and 02295 wait a bit */ 02296 return 0; 02297 } 02298 if (mgcpdebug) { 02299 ast_verbose(VERBOSE_PREFIX_3 "Modified %s@%s-%d with new mode: %s on callid: %s\n", 02300 p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode], sub->callid); 02301 } 02302 reqprep(&resp, p, "MDCX"); 02303 add_header(&resp, "C", sub->callid); 02304 add_header(&resp, "M", mgcp_cxmodes[sub->cxmode]); 02305 /* X header should not be sent. kept for compatibility */ 02306 add_header(&resp, "X", sub->txident); 02307 add_header(&resp, "I", sub->cxident); 02308 switch (sub->parent->hookstate) { 02309 case MGCP_ONHOOK: 02310 add_header(&resp, "R", "L/hd(N)"); 02311 break; 02312 case MGCP_OFFHOOK: 02313 add_header_offhook(sub, &resp); 02314 break; 02315 } 02316 /* fill in new fields */ 02317 resp.cmd = MGCP_CMD_MDCX; 02318 resp.trid = oseq; 02319 return send_request(p, sub, &resp, oseq); /* SC */ 02320 }
static int transmit_modify_with_sdp | ( | struct mgcp_subchannel * | sub, | |
struct ast_rtp * | rtp, | |||
int | codecs | |||
) | [static] |
Definition at line 2139 of file chan_mgcp.c.
References add_header(), add_sdp(), AST_FORMAT_MAX_AUDIO, ast_rtp_get_peer(), ast_rtp_lookup_mime_subtype(), ast_strlen_zero(), mgcp_subchannel::callid, mgcp_endpoint::capability, mgcp_request::cmd, mgcp_subchannel::cxident, mgcp_subchannel::cxmode, MGCP_CMD_MDCX, mgcp_subchannel::parent, reqprep(), send_request(), mgcp_subchannel::tmpdest, mgcp_request::trid, and mgcp_subchannel::txident.
Referenced by handle_response(), and mgcp_set_rtp_peer().
02140 { 02141 struct mgcp_request resp; 02142 char local[256]; 02143 char tmp[80]; 02144 int x; 02145 int capability; 02146 struct mgcp_endpoint *p = sub->parent; 02147 02148 capability = p->capability; 02149 if (codecs) 02150 capability = codecs; 02151 if (ast_strlen_zero(sub->cxident) && rtp) { 02152 /* We don't have a CXident yet, store the destination and 02153 wait a bit */ 02154 ast_rtp_get_peer(rtp, &sub->tmpdest); 02155 return 0; 02156 } 02157 snprintf(local, sizeof(local), "p:20"); 02158 for (x=1;x<= AST_FORMAT_MAX_AUDIO; x <<= 1) { 02159 if (p->capability & x) { 02160 snprintf(tmp, sizeof(tmp), ", a:%s", ast_rtp_lookup_mime_subtype(1, x, 0)); 02161 strncat(local, tmp, sizeof(local) - strlen(local) - 1); 02162 } 02163 } 02164 reqprep(&resp, p, "MDCX"); 02165 add_header(&resp, "C", sub->callid); 02166 add_header(&resp, "L", local); 02167 add_header(&resp, "M", mgcp_cxmodes[sub->cxmode]); 02168 /* X header should not be sent. kept for compatibility */ 02169 add_header(&resp, "X", sub->txident); 02170 add_header(&resp, "I", sub->cxident); 02171 /*add_header(&resp, "S", "");*/ 02172 add_sdp(&resp, sub, rtp); 02173 /* fill in new fields */ 02174 resp.cmd = MGCP_CMD_MDCX; 02175 resp.trid = oseq; 02176 return send_request(p, sub, &resp, oseq); /* SC */ 02177 }
static int transmit_notify_request | ( | struct mgcp_subchannel * | sub, | |
char * | tone | |||
) | [static] |
Definition at line 2212 of file chan_mgcp.c.
References add_header(), add_header_offhook(), ast_strlen_zero(), ast_verbose(), mgcp_request::cmd, mgcp_endpoint::curtone, mgcp_subchannel::cxmode, mgcp_endpoint::hookstate, mgcp_subchannel::id, MGCP_CMD_RQNT, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), mgcp_endpoint::rqnt_ident, send_request(), mgcp_request::trid, and VERBOSE_PREFIX_3.
Referenced by do_monitor(), handle_hd_hf(), handle_request(), handle_response(), mgcp_answer(), mgcp_hangup(), mgcp_indicate(), mgcp_request(), mgcp_senddigit_end(), and mgcp_ss().
02213 { 02214 struct mgcp_request resp; 02215 struct mgcp_endpoint *p = sub->parent; 02216 02217 if (mgcpdebug) { 02218 ast_verbose(VERBOSE_PREFIX_3 "MGCP Asked to indicate tone: %s on %s@%s-%d in cxmode: %s\n", 02219 tone, p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode]); 02220 } 02221 ast_copy_string(p->curtone, tone, sizeof(p->curtone)); 02222 reqprep(&resp, p, "RQNT"); 02223 add_header(&resp, "X", p->rqnt_ident); /* SC */ 02224 switch (p->hookstate) { 02225 case MGCP_ONHOOK: 02226 add_header(&resp, "R", "L/hd(N)"); 02227 break; 02228 case MGCP_OFFHOOK: 02229 add_header_offhook(sub, &resp); 02230 break; 02231 } 02232 if (!ast_strlen_zero(tone)) { 02233 add_header(&resp, "S", tone); 02234 } 02235 /* fill in new fields */ 02236 resp.cmd = MGCP_CMD_RQNT; 02237 resp.trid = oseq; 02238 return send_request(p, NULL, &resp, oseq); /* SC */ 02239 }
static int transmit_notify_request_with_callerid | ( | struct mgcp_subchannel * | sub, | |
char * | tone, | |||
char * | callernum, | |||
char * | callername | |||
) | [static] |
Definition at line 2241 of file chan_mgcp.c.
References add_header(), add_header_offhook(), ast_localtime(), ast_strlen_zero(), ast_verbose(), mgcp_request::cmd, mgcp_endpoint::curtone, mgcp_subchannel::cxmode, mgcp_endpoint::hookstate, mgcp_subchannel::id, mgcp_endpoint::lastcallerid, MGCP_CMD_RQNT, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_gateway::name, mgcp_endpoint::name, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), mgcp_endpoint::rqnt_ident, send_request(), t, mgcp_request::trid, and VERBOSE_PREFIX_3.
Referenced by mgcp_call(), and mgcp_hangup().
02242 { 02243 struct mgcp_request resp; 02244 char tone2[256]; 02245 char *l, *n; 02246 time_t t; 02247 struct tm tm; 02248 struct mgcp_endpoint *p = sub->parent; 02249 02250 time(&t); 02251 ast_localtime(&t, &tm, NULL); 02252 n = callername; 02253 l = callernum; 02254 if (!n) 02255 n = ""; 02256 if (!l) 02257 l = ""; 02258 02259 /* Keep track of last callerid for blacklist and callreturn */ 02260 ast_copy_string(p->lastcallerid, l, sizeof(p->lastcallerid)); 02261 02262 snprintf(tone2, sizeof(tone2), "%s,L/ci(%02d/%02d/%02d/%02d,%s,%s)", tone, 02263 tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, l, n); 02264 ast_copy_string(p->curtone, tone, sizeof(p->curtone)); 02265 reqprep(&resp, p, "RQNT"); 02266 add_header(&resp, "X", p->rqnt_ident); /* SC */ 02267 switch (p->hookstate) { 02268 case MGCP_ONHOOK: 02269 add_header(&resp, "R", "L/hd(N)"); 02270 break; 02271 case MGCP_OFFHOOK: 02272 add_header_offhook(sub, &resp); 02273 break; 02274 } 02275 if (!ast_strlen_zero(tone2)) { 02276 add_header(&resp, "S", tone2); 02277 } 02278 if (mgcpdebug) { 02279 ast_verbose(VERBOSE_PREFIX_3 "MGCP Asked to indicate tone: %s on %s@%s-%d in cxmode: %s\n", 02280 tone2, p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode]); 02281 } 02282 /* fill in new fields */ 02283 resp.cmd = MGCP_CMD_RQNT; 02284 resp.trid = oseq; 02285 return send_request(p, NULL, &resp, oseq); /* SC */ 02286 }
static int transmit_response | ( | struct mgcp_subchannel * | sub, | |
char * | msg, | |||
struct mgcp_request * | req, | |||
char * | msgrest | |||
) | [static] |
Definition at line 2023 of file chan_mgcp.c.
References mgcp_response::buf, mgcp_request::data, mgcp_request::identifier, mgcp_response::len, mgcp_request::len, malloc, mgcp_response::next, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_gateway::responses, respprep(), send_response(), mgcp_response::seqno, and mgcp_response::whensent.
Referenced by handle_button_template_req_message(), handle_invite_replaces(), handle_keep_alive_message(), handle_line_state_req_message(), handle_open_receive_channel_ack_message(), handle_register_message(), handle_request(), handle_request_bye(), handle_request_cancel(), handle_request_info(), handle_request_invite(), handle_request_message(), handle_request_notify(), handle_request_refer(), handle_request_subscribe(), handle_server_request_message(), handle_soft_key_set_req_message(), handle_soft_key_template_req_message(), handle_speed_dial_stat_req_message(), handle_time_date_req_message(), handle_version_req_message(), local_attended_transfer(), receive_message(), register_verify(), sip_indicate(), sip_park_thread(), sipsock_read(), skinny_hold(), skinny_reset_device(), skinny_unhold(), transmit_callinfo(), transmit_callstate(), transmit_connect(), transmit_dialednumber(), transmit_displaymessage(), transmit_displaynotify(), transmit_displaypromptstatus(), transmit_lamp_indication(), transmit_ringer_mode(), transmit_selectsoftkeys(), transmit_speaker_mode(), and transmit_tone().
02024 { 02025 struct mgcp_request resp; 02026 struct mgcp_endpoint *p = sub->parent; 02027 struct mgcp_response *mgr; 02028 02029 respprep(&resp, p, msg, req, msgrest); 02030 mgr = malloc(sizeof(struct mgcp_response) + resp.len + 1); 02031 if (mgr) { 02032 /* Store MGCP response in case we have to retransmit */ 02033 memset(mgr, 0, sizeof(struct mgcp_response)); 02034 sscanf(req->identifier, "%d", &mgr->seqno); 02035 time(&mgr->whensent); 02036 mgr->len = resp.len; 02037 memcpy(mgr->buf, resp.data, resp.len); 02038 mgr->buf[resp.len] = '\0'; 02039 mgr->next = p->parent->responses; 02040 p->parent->responses = mgr; 02041 } 02042 return send_response(sub, &resp); 02043 }
static int unalloc_sub | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 463 of file chan_mgcp.c.
References mgcp_subchannel::alreadygone, ast_log(), ast_rtp_destroy(), ast_strlen_zero(), mgcp_subchannel::callid, mgcp_subchannel::cxident, mgcp_subchannel::cxmode, dump_cmd_queues(), mgcp_subchannel::id, LOG_DEBUG, LOG_WARNING, MGCP_CX_INACTIVE, mgcp_gateway::name, mgcp_endpoint::name, mgcp_subchannel::outgoing, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, mgcp_endpoint::sub, mgcp_subchannel::tmpdest, and transmit_connection_del().
Referenced by attempt_transfer(), ss_thread(), zt_handle_event(), and zt_hangup().
00464 { 00465 struct mgcp_endpoint *p = sub->parent; 00466 if (p->sub == sub) { 00467 ast_log(LOG_WARNING, "Trying to unalloc the real channel %s@%s?!?\n", p->name, p->parent->name); 00468 return -1; 00469 } 00470 ast_log(LOG_DEBUG, "Released sub %d of channel %s@%s\n", sub->id, p->name, p->parent->name); 00471 00472 sub->owner = NULL; 00473 if (!ast_strlen_zero(sub->cxident)) { 00474 transmit_connection_del(sub); 00475 } 00476 sub->cxident[0] = '\0'; 00477 sub->callid[0] = '\0'; 00478 sub->cxmode = MGCP_CX_INACTIVE; 00479 sub->outgoing = 0; 00480 sub->alreadygone = 0; 00481 memset(&sub->tmpdest, 0, sizeof(sub->tmpdest)); 00482 if (sub->rtp) { 00483 ast_rtp_destroy(sub->rtp); 00484 sub->rtp = NULL; 00485 } 00486 dump_cmd_queues(NULL, sub); /* SC */ 00487 return 0; 00488 }
static int unload_module | ( | void | ) | [static] |
Definition at line 4362 of file chan_mgcp.c.
References ast_channel_register(), ast_channel_unregister(), ast_cli_unregister_multiple(), ast_log(), ast_mutex_lock(), ast_mutex_trylock(), ast_mutex_unlock(), AST_PTHREADT_NULL, AST_PTHREADT_STOP, ast_rtp_proto_unregister(), mgcp_endpoint::delme, mgcp_gateway::delme, mgcp_gateway::endpoints, gateways, LOG_WARNING, mgcp_reload(), mgcp_endpoint::next, mgcp_gateway::next, prune_gateways(), and sched_context_destroy().
04363 { 04364 struct mgcp_endpoint *e; 04365 struct mgcp_gateway *g; 04366 04367 /* Check to see if we're reloading */ 04368 if (ast_mutex_trylock(&mgcp_reload_lock)) { 04369 ast_log(LOG_WARNING, "MGCP is currently reloading. Unable to remove module.\n"); 04370 return -1; 04371 } else { 04372 mgcp_reloading = 1; 04373 ast_mutex_unlock(&mgcp_reload_lock); 04374 } 04375 04376 /* First, take us out of the channel loop */ 04377 ast_channel_unregister(&mgcp_tech); 04378 04379 /* Shut down the monitoring thread */ 04380 if (!ast_mutex_lock(&monlock)) { 04381 if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP)) { 04382 pthread_cancel(monitor_thread); 04383 pthread_kill(monitor_thread, SIGURG); 04384 pthread_join(monitor_thread, NULL); 04385 } 04386 monitor_thread = AST_PTHREADT_STOP; 04387 ast_mutex_unlock(&monlock); 04388 } else { 04389 ast_log(LOG_WARNING, "Unable to lock the monitor\n"); 04390 /* We always want to leave this in a consistent state */ 04391 ast_channel_register(&mgcp_tech); 04392 mgcp_reloading = 0; 04393 mgcp_reload(0, 0, NULL); 04394 return -1; 04395 } 04396 04397 if (!ast_mutex_lock(&gatelock)) { 04398 for (g = gateways; g; g = g->next) { 04399 g->delme = 1; 04400 for (e = g->endpoints; e; e = e->next) 04401 e->delme = 1; 04402 } 04403 04404 prune_gateways(); 04405 ast_mutex_unlock(&gatelock); 04406 } else { 04407 ast_log(LOG_WARNING, "Unable to lock the gateways list.\n"); 04408 /* We always want to leave this in a consistent state */ 04409 ast_channel_register(&mgcp_tech); 04410 /* Allow the monitor to restart */ 04411 monitor_thread = AST_PTHREADT_NULL; 04412 mgcp_reloading = 0; 04413 mgcp_reload(0, 0, NULL); 04414 return -1; 04415 } 04416 04417 close(mgcpsock); 04418 ast_rtp_proto_unregister(&mgcp_rtp); 04419 ast_cli_unregister_multiple(cli_mgcp, sizeof(cli_mgcp) / sizeof(struct ast_cli_entry)); 04420 sched_context_destroy(sched); 04421 04422 return 0; 04423 }
struct in_addr __ourip [static] |
Definition at line 224 of file chan_mgcp.c.
char accountcode[AST_MAX_ACCOUNT_CODE] = "" [static] |
Definition at line 189 of file chan_mgcp.c.
int adsi = 0 [static] |
Definition at line 195 of file chan_mgcp.c.
int amaflags = 0 [static] |
Definition at line 193 of file chan_mgcp.c.
char audit_endpoint_usage[] [static] |
Initial value:
"Usage: mgcp audit endpoint <endpointid>\n" " Lists the capabilities of an endpoint in the MGCP (Media Gateway Control Protocol) subsystem.\n" " mgcp debug MUST be on to see the results of this command.\n"
Definition at line 1050 of file chan_mgcp.c.
struct sockaddr_in bindaddr [static] |
Definition at line 409 of file chan_mgcp.c.
int callreturn = 0 [static] |
Definition at line 174 of file chan_mgcp.c.
int callwaiting = 0 [static] |
Definition at line 172 of file chan_mgcp.c.
int cancallforward = 0 [static] |
Definition at line 183 of file chan_mgcp.c.
int canreinvite = CANREINVITE [static] |
Definition at line 187 of file chan_mgcp.c.
int capability = AST_FORMAT_ULAW [static] |
Definition at line 220 of file chan_mgcp.c.
Referenced by add_sdp(), build_setup(), iax2_call(), parse_setup(), set_config(), and set_local_capabilities().
char cid_name[AST_MAX_EXTENSION] = "" [static] |
Definition at line 160 of file chan_mgcp.c.
Referenced by __oh323_new(), action_devstate(), build_peer(), build_user(), check_access(), check_user_full(), dial_trunk(), misdn_new(), sip_call(), sla_ring_station(), and zt_handle_event().
char cid_num[AST_MAX_EXTENSION] = "" [static] |
Definition at line 159 of file chan_mgcp.c.
Referenced by __oh323_new(), action_devstate(), build_peer(), build_user(), check_access(), check_user_full(), dial_trunk(), misdn_new(), sla_ring_station(), socket_process(), and zt_handle_event().
struct ast_cli_entry cli_mgcp[] [static] |
Definition at line 1139 of file chan_mgcp.c.
const char config[] = "mgcp.conf" [static] |
Definition at line 113 of file chan_mgcp.c.
char context[AST_MAX_EXTENSION] = "default" [static] |
Definition at line 155 of file chan_mgcp.c.
ast_group_t cur_callergroup = 0 [static] |
Definition at line 165 of file chan_mgcp.c.
ast_group_t cur_pickupgroup = 0 [static] |
Definition at line 166 of file chan_mgcp.c.
char debug_usage[] [static] |
Initial value:
"Usage: mgcp set debug\n" " Enables dumping of MGCP packets for debugging purposes\n"
Definition at line 1055 of file chan_mgcp.c.
struct ast_jb_conf default_jbconf [static] |
Global jitterbuffer configuration - by default, jb is disabled
Definition at line 103 of file chan_mgcp.c.
int dtmfmode = 0 [static] |
int firstdigittimeout = 16000 [static] |
Wait up to 16 seconds for first digit (FXO logic)
Definition at line 200 of file chan_mgcp.c.
Referenced by disa_exec().
struct mgcp_gateway * gateways [static] |
int gendigittimeout = 8000 [static] |
How long to wait for following digits (FXO logic)
Definition at line 203 of file chan_mgcp.c.
struct ast_jb_conf global_jbconf [static] |
Definition at line 110 of file chan_mgcp.c.
int immediate = 0 [static] |
Definition at line 170 of file chan_mgcp.c.
struct io_context* io [static] |
Definition at line 230 of file chan_mgcp.c.
char language[MAX_LANGUAGE] = "" [static] |
Definition at line 157 of file chan_mgcp.c.
char mailbox[AST_MAX_EXTENSION] [static] |
Definition at line 191 of file chan_mgcp.c.
Referenced by action_mailboxcount(), action_mailboxstatus(), append_mailbox_mapping(), build_peer(), disa_exec(), and realtime_directory().
int matchdigittimeout = 3000 [static] |
How long to wait for an extra digit, if there is an ambiguous match
Definition at line 206 of file chan_mgcp.c.
char* mgcp_cxmodes[] [static] |
}
Definition at line 135 of file chan_mgcp.c.
char mgcp_reload_usage[] [static] |
Initial value:
"Usage: mgcp reload\n" " Reloads MGCP configuration from mgcp.conf\n" " Deprecated: please use 'reload chan_mgcp.so' instead.\n"
Definition at line 1063 of file chan_mgcp.c.
int mgcp_reloading = 0 [static] |
Definition at line 402 of file chan_mgcp.c.
struct ast_rtp_protocol mgcp_rtp [static] |
Initial value:
{ .type = "MGCP", .get_rtp_info = mgcp_get_rtp_peer, .set_rtp_peer = mgcp_set_rtp_peer, }
Definition at line 4015 of file chan_mgcp.c.
struct ast_channel_tech mgcp_tech [static] |
Definition at line 439 of file chan_mgcp.c.
int mgcpdebug = 0 [static] |
Definition at line 227 of file chan_mgcp.c.
int mgcpsock = -1 [static] |
Definition at line 407 of file chan_mgcp.c.
int* mgcpsock_read_id = NULL [static] |
Definition at line 3439 of file chan_mgcp.c.
pthread_t monitor_thread = AST_PTHREADT_NULL [static] |
This is the thread for the monitor which checks for input on the channels which are not currently in use.
Definition at line 216 of file chan_mgcp.c.
char musicclass[MAX_MUSICCLASS] = "" [static] |
Definition at line 158 of file chan_mgcp.c.
Referenced by ast_do_masquerade(), begin_dial(), func_channel_write(), gtalk_new(), moh2_exec(), moh_write(), and read_config().
int nat = 0 [static] |
Definition at line 163 of file chan_mgcp.c.
char no_debug_usage[] [static] |
Initial value:
"Usage: mgcp set debug off\n" " Disables dumping of MGCP packets for debugging purposes\n"
Definition at line 1059 of file chan_mgcp.c.
int nonCodecCapability = AST_RTP_DTMF [static] |
Definition at line 221 of file chan_mgcp.c.
unsigned int oseq [static] |
Definition at line 197 of file chan_mgcp.c.
char ourhost[MAXHOSTNAMELEN] [static] |
int ourport [static] |
Definition at line 225 of file chan_mgcp.c.
Referenced by build_contact(), build_via(), initreqprep(), and reload_config().
struct sched_context* sched [static] |
Definition at line 229 of file chan_mgcp.c.
char show_endpoints_usage[] [static] |
Initial value:
"Usage: mgcp show endpoints\n" " Lists all endpoints known to the MGCP (Media Gateway Control Protocol) subsystem.\n"
Definition at line 1046 of file chan_mgcp.c.
int singlepath = 0 [static] |
Definition at line 185 of file chan_mgcp.c.
int slowsequence = 0 [static] |
Definition at line 176 of file chan_mgcp.c.
const char tdesc[] = "Media Gateway Control Protocol (MGCP)" [static] |
Definition at line 112 of file chan_mgcp.c.
int threewaycalling = 0 [static] |
Definition at line 178 of file chan_mgcp.c.
int tos = 0 [static] |
Definition at line 168 of file chan_mgcp.c.
int transfer = 0 [static] |
This is for flashhook transfers
Definition at line 181 of file chan_mgcp.c.
Referenced by leave_voicemail(), and send_packet().