#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"
Include dependency graph for chan_mgcp.c:
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 |
Definition at line 94 of file chan_mgcp.c.
#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 1573 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().
01574 { 01575 int x; 01576 int len = strlen(name); 01577 char *r; 01578 for (x=*start;x<req->headers;x++) { 01579 if (!strncasecmp(req->header[x], name, len) && 01580 (req->header[x][len] == ':')) { 01581 r = req->header[x] + len + 1; 01582 while(*r && (*r < 33)) 01583 r++; 01584 *start = x+1; 01585 return r; 01586 } 01587 } 01588 /* Don't return NULL, so get_header is always a valid pointer */ 01589 return ""; 01590 }
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 1923 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_connection_del(), transmit_connection_del_w_params(), transmit_invite(), transmit_modify_request(), 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().
01924 { 01925 if (req->len >= sizeof(req->data) - 4) { 01926 ast_log(LOG_WARNING, "Out of space, can't add anymore\n"); 01927 return -1; 01928 } 01929 if (req->lines) { 01930 ast_log(LOG_WARNING, "Can't add more headers when lines have been added\n"); 01931 return -1; 01932 } 01933 req->header[req->headers] = req->data + req->len; 01934 snprintf(req->header[req->headers], sizeof(req->data) - req->len, "%s: %s\r\n", var, value); 01935 req->len += strlen(req->header[req->headers]); 01936 if (req->headers < MGCP_MAX_HEADERS) 01937 req->headers++; 01938 else { 01939 ast_log(LOG_WARNING, "Out of header space\n"); 01940 return -1; 01941 } 01942 return 0; 01943 }
static void add_header_offhook | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | resp | |||
) | [static] |
Definition at line 2324 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().
02325 { 02326 struct mgcp_endpoint *p = sub->parent; 02327 02328 if (p && p->sub && p->sub->owner && p->sub->owner->_state >= AST_STATE_RINGING && (p->dtmfmode & (MGCP_DTMF_INBAND | MGCP_DTMF_HYBRID))) 02329 add_header(resp, "R", "L/hu(N),L/hf(N)"); 02330 else 02331 add_header(resp, "R", "L/hu(N),L/hf(N),D/[0-9#*](N)"); 02332 }
static int add_line | ( | struct mgcp_request * | req, | |
char * | line | |||
) | [static] |
Definition at line 1945 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().
01946 { 01947 if (req->len >= sizeof(req->data) - 4) { 01948 ast_log(LOG_WARNING, "Out of space, can't add anymore\n"); 01949 return -1; 01950 } 01951 if (!req->lines) { 01952 /* Add extra empty return */ 01953 snprintf(req->data + req->len, sizeof(req->data) - req->len, "\r\n"); 01954 req->len += strlen(req->data + req->len); 01955 } 01956 req->line[req->lines] = req->data + req->len; 01957 snprintf(req->line[req->lines], sizeof(req->data) - req->len, "%s", line); 01958 req->len += strlen(req->line[req->lines]); 01959 if (req->lines < MGCP_MAX_LINES) 01960 req->lines++; 01961 else { 01962 ast_log(LOG_WARNING, "Out of line space\n"); 01963 return -1; 01964 } 01965 return 0; 01966 }
static int add_sdp | ( | struct mgcp_request * | resp, | |
struct mgcp_subchannel * | sub, | |||
struct ast_rtp * | rtp | |||
) | [static] |
Definition at line 2047 of file chan_mgcp.c.
References AST_FORMAT_MAX_AUDIO, ast_inet_ntoa(), ast_log(), ast_rtp_get_peer(), ast_rtp_get_us(), ast_rtp_lookup_code(), ast_rtp_lookup_mime_subtype(), ast_verbose(), mgcp_endpoint::capability, len, LOG_WARNING, mgcpdebug, mgcp_gateway::ourip, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, s, mgcp_endpoint::sub, t, and mgcp_subchannel::tmpdest.
Referenced by transmit_invite(), transmit_reinvite_with_sdp(), and transmit_response_with_sdp().
02048 { 02049 int len; 02050 int codec; 02051 char costr[80]; 02052 struct sockaddr_in sin; 02053 char v[256]; 02054 char s[256]; 02055 char o[256]; 02056 char c[256]; 02057 char t[256]; 02058 char m[256] = ""; 02059 char a[1024] = ""; 02060 int x; 02061 struct sockaddr_in dest; 02062 struct mgcp_endpoint *p = sub->parent; 02063 /* XXX We break with the "recommendation" and send our IP, in order that our 02064 peer doesn't have to ast_gethostbyname() us XXX */ 02065 len = 0; 02066 if (!sub->rtp) { 02067 ast_log(LOG_WARNING, "No way to add SDP without an RTP structure\n"); 02068 return -1; 02069 } 02070 ast_rtp_get_us(sub->rtp, &sin); 02071 if (rtp) { 02072 ast_rtp_get_peer(rtp, &dest); 02073 } else { 02074 if (sub->tmpdest.sin_addr.s_addr) { 02075 dest.sin_addr = sub->tmpdest.sin_addr; 02076 dest.sin_port = sub->tmpdest.sin_port; 02077 /* Reset temporary destination */ 02078 memset(&sub->tmpdest, 0, sizeof(sub->tmpdest)); 02079 } else { 02080 dest.sin_addr = p->parent->ourip; 02081 dest.sin_port = sin.sin_port; 02082 } 02083 } 02084 if (mgcpdebug) { 02085 ast_verbose("We're at %s port %d\n", ast_inet_ntoa(p->parent->ourip), ntohs(sin.sin_port)); 02086 } 02087 snprintf(v, sizeof(v), "v=0\r\n"); 02088 snprintf(o, sizeof(o), "o=root %d %d IN IP4 %s\r\n", (int)getpid(), (int)getpid(), ast_inet_ntoa(dest.sin_addr)); 02089 snprintf(s, sizeof(s), "s=session\r\n"); 02090 snprintf(c, sizeof(c), "c=IN IP4 %s\r\n", ast_inet_ntoa(dest.sin_addr)); 02091 snprintf(t, sizeof(t), "t=0 0\r\n"); 02092 snprintf(m, sizeof(m), "m=audio %d RTP/AVP", ntohs(dest.sin_port)); 02093 for (x = 1; x <= AST_FORMAT_MAX_AUDIO; x <<= 1) { 02094 if (p->capability & x) { 02095 if (mgcpdebug) { 02096 ast_verbose("Answering with capability %d\n", x); 02097 } 02098 codec = ast_rtp_lookup_code(sub->rtp, 1, x); 02099 if (codec > -1) { 02100 snprintf(costr, sizeof(costr), " %d", codec); 02101 strncat(m, costr, sizeof(m) - strlen(m) - 1); 02102 snprintf(costr, sizeof(costr), "a=rtpmap:%d %s/8000\r\n", codec, ast_rtp_lookup_mime_subtype(1, x, 0)); 02103 strncat(a, costr, sizeof(a) - strlen(a) - 1); 02104 } 02105 } 02106 } 02107 for (x = 1; x <= AST_RTP_MAX; x <<= 1) { 02108 if (p->nonCodecCapability & x) { 02109 if (mgcpdebug) { 02110 ast_verbose("Answering with non-codec capability %d\n", x); 02111 } 02112 codec = ast_rtp_lookup_code(sub->rtp, 0, x); 02113 if (codec > -1) { 02114 snprintf(costr, sizeof(costr), " %d", codec); 02115 strncat(m, costr, sizeof(m) - strlen(m) - 1); 02116 snprintf(costr, sizeof(costr), "a=rtpmap:%d %s/8000\r\n", codec, ast_rtp_lookup_mime_subtype(0, x, 0)); 02117 strncat(a, costr, sizeof(a) - strlen(a) - 1); 02118 if (x == AST_RTP_DTMF) { 02119 /* Indicate we support DTMF... Not sure about 16, 02120 but MSN supports it so dang it, we will too... */ 02121 snprintf(costr, sizeof costr, "a=fmtp:%d 0-16\r\n", codec); 02122 strncat(a, costr, sizeof(a) - strlen(a) - 1); 02123 } 02124 } 02125 } 02126 } 02127 strncat(m, "\r\n", sizeof(m) - strlen(m) - 1); 02128 len = strlen(v) + strlen(s) + strlen(o) + strlen(c) + strlen(t) + strlen(m) + strlen(a); 02129 snprintf(costr, sizeof(costr), "%d", len); 02130 add_line(resp, v); 02131 add_line(resp, o); 02132 add_line(resp, s); 02133 add_line(resp, c); 02134 add_line(resp, t); 02135 add_line(resp, m); 02136 add_line(resp, a); 02137 return 0; 02138 }
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 2916 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().
02917 { 02918 /* ************************* 02919 * I hope this works. 02920 * Copied out of chan_zap 02921 * Cross your fingers 02922 * *************************/ 02923 02924 /* In order to transfer, we need at least one of the channels to 02925 actually be in a call bridge. We can't conference two applications 02926 together (but then, why would we want to?) */ 02927 if (ast_bridged_channel(p->sub->owner)) { 02928 /* The three-way person we're about to transfer to could still be in MOH, so 02929 stop if now if appropriate */ 02930 if (ast_bridged_channel(p->sub->next->owner)) 02931 ast_queue_control(p->sub->next->owner, AST_CONTROL_UNHOLD); 02932 if (p->sub->owner->_state == AST_STATE_RINGING) { 02933 ast_indicate(ast_bridged_channel(p->sub->next->owner), AST_CONTROL_RINGING); 02934 } 02935 if (ast_channel_masquerade(p->sub->next->owner, ast_bridged_channel(p->sub->owner))) { 02936 ast_log(LOG_WARNING, "Unable to masquerade %s as %s\n", 02937 ast_bridged_channel(p->sub->owner)->name, p->sub->next->owner->name); 02938 return -1; 02939 } 02940 /* Orphan the channel */ 02941 unalloc_sub(p->sub->next); 02942 } else if (ast_bridged_channel(p->sub->next->owner)) { 02943 if (p->sub->owner->_state == AST_STATE_RINGING) { 02944 ast_indicate(ast_bridged_channel(p->sub->next->owner), AST_CONTROL_RINGING); 02945 } 02946 ast_queue_control(p->sub->next->owner, AST_CONTROL_UNHOLD); 02947 if (ast_channel_masquerade(p->sub->owner, ast_bridged_channel(p->sub->next->owner))) { 02948 ast_log(LOG_WARNING, "Unable to masquerade %s as %s\n", 02949 ast_bridged_channel(p->sub->next->owner)->name, p->sub->owner->name); 02950 return -1; 02951 } 02952 /*swap_subs(p, SUB_THREEWAY, SUB_REAL);*/ 02953 if (option_verbose > 2) { 02954 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); 02955 } 02956 p->sub = p->sub->next; 02957 unalloc_sub(p->sub->next); 02958 /* Tell the caller not to hangup */ 02959 return 1; 02960 } else { 02961 ast_log(LOG_DEBUG, "Neither %s nor %s are in a bridge, nothing to transfer\n", 02962 p->sub->owner->name, p->sub->next->owner->name); 02963 p->sub->next->owner->_softhangup |= AST_SOFTHANGUP_DEV; 02964 if (p->sub->next->owner) { 02965 p->sub->next->alreadygone = 1; 02966 mgcp_queue_hangup(p->sub->next); 02967 } 02968 } 02969 return 0; 02970 }
static struct mgcp_gateway* build_gateway | ( | char * | cat, | |
struct ast_variable * | v | |||
) | [static] |
build_gateway: parse mgcp.conf and create gateway/endpoint structures
Definition at line 3613 of file chan_mgcp.c.
References __ourip, mgcp_endpoint::accountcode, accountcode, mgcp_gateway::addr, mgcp_endpoint::adsi, adsi, mgcp_endpoint::amaflags, 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, callreturn, mgcp_endpoint::callwaiting, callwaiting, mgcp_endpoint::cancallforward, cancallforward, mgcp_endpoint::canreinvite, CANREINVITE, canreinvite, capability, mgcp_endpoint::capability, mgcp_endpoint::cid_name, cid_name, mgcp_endpoint::cid_num, cid_num, mgcp_endpoint::context, context, cur_callergroup, cur_pickupgroup, mgcp_subchannel::cx_queue_lock, mgcp_subchannel::cxmode, mgcp_gateway::defaddr, DEFAULT_MGCP_GW_PORT, mgcp_endpoint::delme, mgcp_gateway::delme, mgcp_endpoint::dtmfmode, 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, immediate, INADDR_NONE, mgcp_endpoint::language, language, ast_variable::lineno, mgcp_subchannel::lock, LOG_WARNING, mgcp_subchannel::magic, mgcp_endpoint::mailbox, 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, musicclass, mgcp_endpoint::name, ast_variable::name, mgcp_gateway::name, mgcp_subchannel::nat, nat, 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_endpoint::rqnt_ident, mgcp_subchannel::rtp, mgcp_endpoint::singlepath, singlepath, mgcp_endpoint::slowsequence, slowsequence, mgcp_endpoint::sub, mgcp_endpoint::threewaycalling, threewaycalling, mgcp_endpoint::transfer, 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().
03614 { 03615 struct mgcp_gateway *gw; 03616 struct mgcp_endpoint *e; 03617 struct mgcp_subchannel *sub; 03618 /*char txident[80];*/ 03619 int i=0, y=0; 03620 int gw_reload = 0; 03621 int ep_reload = 0; 03622 canreinvite = CANREINVITE; 03623 03624 /* locate existing gateway */ 03625 gw = gateways; 03626 while (gw) { 03627 if (!strcasecmp(cat, gw->name)) { 03628 /* gateway already exists */ 03629 gw->delme = 0; 03630 gw_reload = 1; 03631 break; 03632 } 03633 gw = gw->next; 03634 } 03635 03636 if (!gw) 03637 gw = malloc(sizeof(struct mgcp_gateway)); 03638 03639 if (gw) { 03640 if (!gw_reload) { 03641 memset(gw, 0, sizeof(struct mgcp_gateway)); 03642 gw->expire = -1; 03643 gw->retransid = -1; /* SC */ 03644 ast_mutex_init(&gw->msgs_lock); 03645 ast_copy_string(gw->name, cat, sizeof(gw->name)); 03646 /* check if the name is numeric ip */ 03647 if ((strchr(gw->name, '.')) && inet_addr(gw->name) != INADDR_NONE) 03648 gw->isnamedottedip = 1; 03649 } 03650 while(v) { 03651 if (!strcasecmp(v->name, "host")) { 03652 if (!strcasecmp(v->value, "dynamic")) { 03653 /* They'll register with us */ 03654 gw->dynamic = 1; 03655 memset(&gw->addr.sin_addr, 0, 4); 03656 if (gw->addr.sin_port) { 03657 /* If we've already got a port, make it the default rather than absolute */ 03658 gw->defaddr.sin_port = gw->addr.sin_port; 03659 gw->addr.sin_port = 0; 03660 } 03661 } else { 03662 /* Non-dynamic. Make sure we become that way if we're not */ 03663 AST_SCHED_DEL(sched, gw->expire); 03664 gw->dynamic = 0; 03665 if (ast_get_ip(&gw->addr, v->value)) { 03666 if (!gw_reload) { 03667 ast_mutex_destroy(&gw->msgs_lock); 03668 free(gw); 03669 } 03670 return NULL; 03671 } 03672 } 03673 } else if (!strcasecmp(v->name, "defaultip")) { 03674 if (ast_get_ip(&gw->defaddr, v->value)) { 03675 if (!gw_reload) { 03676 ast_mutex_destroy(&gw->msgs_lock); 03677 free(gw); 03678 } 03679 return NULL; 03680 } 03681 } else if (!strcasecmp(v->name, "permit") || 03682 !strcasecmp(v->name, "deny")) { 03683 gw->ha = ast_append_ha(v->name, v->value, gw->ha); 03684 } else if (!strcasecmp(v->name, "port")) { 03685 gw->addr.sin_port = htons(atoi(v->value)); 03686 } else if (!strcasecmp(v->name, "context")) { 03687 ast_copy_string(context, v->value, sizeof(context)); 03688 } else if (!strcasecmp(v->name, "dtmfmode")) { 03689 if (!strcasecmp(v->value, "inband")) 03690 dtmfmode = MGCP_DTMF_INBAND; 03691 else if (!strcasecmp(v->value, "rfc2833")) 03692 dtmfmode = MGCP_DTMF_RFC2833; 03693 else if (!strcasecmp(v->value, "hybrid")) 03694 dtmfmode = MGCP_DTMF_HYBRID; 03695 else if (!strcasecmp(v->value, "none")) 03696 dtmfmode = 0; 03697 else 03698 ast_log(LOG_WARNING, "'%s' is not a valid DTMF mode at line %d\n", v->value, v->lineno); 03699 } else if (!strcasecmp(v->name, "nat")) { 03700 nat = ast_true(v->value); 03701 } else if (!strcasecmp(v->name, "callerid")) { 03702 if (!strcasecmp(v->value, "asreceived")) { 03703 cid_num[0] = '\0'; 03704 cid_name[0] = '\0'; 03705 } else { 03706 ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num)); 03707 } 03708 } else if (!strcasecmp(v->name, "language")) { 03709 ast_copy_string(language, v->value, sizeof(language)); 03710 } else if (!strcasecmp(v->name, "accountcode")) { 03711 ast_copy_string(accountcode, v->value, sizeof(accountcode)); 03712 } else if (!strcasecmp(v->name, "amaflags")) { 03713 y = ast_cdr_amaflags2int(v->value); 03714 if (y < 0) { 03715 ast_log(LOG_WARNING, "Invalid AMA flags: %s at line %d\n", v->value, v->lineno); 03716 } else { 03717 amaflags = y; 03718 } 03719 } else if (!strcasecmp(v->name, "musiconhold")) { 03720 ast_copy_string(musicclass, v->value, sizeof(musicclass)); 03721 } else if (!strcasecmp(v->name, "callgroup")) { 03722 cur_callergroup = ast_get_group(v->value); 03723 } else if (!strcasecmp(v->name, "pickupgroup")) { 03724 cur_pickupgroup = ast_get_group(v->value); 03725 } else if (!strcasecmp(v->name, "immediate")) { 03726 immediate = ast_true(v->value); 03727 } else if (!strcasecmp(v->name, "cancallforward")) { 03728 cancallforward = ast_true(v->value); 03729 } else if (!strcasecmp(v->name, "singlepath")) { 03730 singlepath = ast_true(v->value); 03731 } else if (!strcasecmp(v->name, "canreinvite")) { 03732 canreinvite = ast_true(v->value); 03733 } else if (!strcasecmp(v->name, "mailbox")) { 03734 ast_copy_string(mailbox, v->value, sizeof(mailbox)); 03735 } else if (!strcasecmp(v->name, "adsi")) { 03736 adsi = ast_true(v->value); 03737 } else if (!strcasecmp(v->name, "callreturn")) { 03738 callreturn = ast_true(v->value); 03739 } else if (!strcasecmp(v->name, "callwaiting")) { 03740 callwaiting = ast_true(v->value); 03741 } else if (!strcasecmp(v->name, "slowsequence")) { 03742 slowsequence = ast_true(v->value); 03743 } else if (!strcasecmp(v->name, "transfer")) { 03744 transfer = ast_true(v->value); 03745 } else if (!strcasecmp(v->name, "threewaycalling")) { 03746 threewaycalling = ast_true(v->value); 03747 } else if (!strcasecmp(v->name, "wcardep")) { 03748 /* locate existing endpoint */ 03749 e = gw->endpoints; 03750 while (e) { 03751 if (!strcasecmp(v->value, e->name)) { 03752 /* endpoint already exists */ 03753 e->delme = 0; 03754 ep_reload = 1; 03755 break; 03756 } 03757 e = e->next; 03758 } 03759 03760 if (!e) { 03761 /* Allocate wildcard endpoint */ 03762 e = malloc(sizeof(struct mgcp_endpoint)); 03763 ep_reload = 0; 03764 } 03765 03766 if (e) { 03767 if (!ep_reload) { 03768 memset(e, 0, sizeof(struct mgcp_endpoint)); 03769 ast_mutex_init(&e->lock); 03770 ast_mutex_init(&e->rqnt_queue_lock); 03771 ast_mutex_init(&e->cmd_queue_lock); 03772 ast_copy_string(e->name, v->value, sizeof(e->name)); 03773 e->needaudit = 1; 03774 } 03775 ast_copy_string(gw->wcardep, v->value, sizeof(gw->wcardep)); 03776 /* XXX Should we really check for uniqueness?? XXX */ 03777 ast_copy_string(e->accountcode, accountcode, sizeof(e->accountcode)); 03778 ast_copy_string(e->context, context, sizeof(e->context)); 03779 ast_copy_string(e->cid_num, cid_num, sizeof(e->cid_num)); 03780 ast_copy_string(e->cid_name, cid_name, sizeof(e->cid_name)); 03781 ast_copy_string(e->language, language, sizeof(e->language)); 03782 ast_copy_string(e->musicclass, musicclass, sizeof(e->musicclass)); 03783 ast_copy_string(e->mailbox, mailbox, sizeof(e->mailbox)); 03784 snprintf(e->rqnt_ident, sizeof(e->rqnt_ident), "%08lx", ast_random()); 03785 e->msgstate = -1; 03786 e->amaflags = amaflags; 03787 e->capability = capability; 03788 e->parent = gw; 03789 e->dtmfmode = dtmfmode; 03790 if (!ep_reload && e->sub && e->sub->rtp) 03791 e->dtmfmode |= MGCP_DTMF_INBAND; 03792 e->adsi = adsi; 03793 e->type = TYPE_LINE; 03794 e->immediate = immediate; 03795 e->callgroup=cur_callergroup; 03796 e->pickupgroup=cur_pickupgroup; 03797 e->callreturn = callreturn; 03798 e->cancallforward = cancallforward; 03799 e->singlepath = singlepath; 03800 e->canreinvite = canreinvite; 03801 e->callwaiting = callwaiting; 03802 e->hascallwaiting = callwaiting; 03803 e->slowsequence = slowsequence; 03804 e->transfer = transfer; 03805 e->threewaycalling = threewaycalling; 03806 e->onhooktime = time(NULL); 03807 /* ASSUME we're onhook */ 03808 e->hookstate = MGCP_ONHOOK; 03809 if (!ep_reload) { 03810 /*snprintf(txident, sizeof(txident), "%08lx", ast_random());*/ 03811 for (i = 0; i < MAX_SUBS; i++) { 03812 sub = malloc(sizeof(struct mgcp_subchannel)); 03813 if (sub) { 03814 ast_verbose(VERBOSE_PREFIX_3 "Allocating subchannel '%d' on %s@%s\n", i, e->name, gw->name); 03815 memset(sub, 0, sizeof(struct mgcp_subchannel)); 03816 ast_mutex_init(&sub->lock); 03817 ast_mutex_init(&sub->cx_queue_lock); 03818 sub->parent = e; 03819 sub->id = i; 03820 snprintf(sub->txident, sizeof(sub->txident), "%08lx", ast_random()); 03821 /*stnrcpy(sub->txident, txident, sizeof(sub->txident) - 1);*/ 03822 sub->cxmode = MGCP_CX_INACTIVE; 03823 sub->nat = nat; 03824 sub->next = e->sub; 03825 e->sub = sub; 03826 } else { 03827 /* XXX Should find a way to clean up our memory */ 03828 ast_log(LOG_WARNING, "Out of memory allocating subchannel\n"); 03829 return NULL; 03830 } 03831 } 03832 /* Make out subs a circular linked list so we can always sping through the whole bunch */ 03833 sub = e->sub; 03834 /* find the end of the list */ 03835 while(sub->next){ 03836 sub = sub->next; 03837 } 03838 /* set the last sub->next to the first sub */ 03839 sub->next = e->sub; 03840 03841 e->next = gw->endpoints; 03842 gw->endpoints = e; 03843 } 03844 } 03845 } else if (!strcasecmp(v->name, "trunk") || 03846 !strcasecmp(v->name, "line")) { 03847 03848 /* locate existing endpoint */ 03849 e = gw->endpoints; 03850 while (e) { 03851 if (!strcasecmp(v->value, e->name)) { 03852 /* endpoint already exists */ 03853 e->delme = 0; 03854 ep_reload = 1; 03855 break; 03856 } 03857 e = e->next; 03858 } 03859 03860 if (!e) { 03861 e = malloc(sizeof(struct mgcp_endpoint)); 03862 ep_reload = 0; 03863 } 03864 03865 if (e) { 03866 if (!ep_reload) { 03867 memset(e, 0, sizeof(struct mgcp_endpoint)); 03868 ast_mutex_init(&e->lock); 03869 ast_mutex_init(&e->rqnt_queue_lock); 03870 ast_mutex_init(&e->cmd_queue_lock); 03871 ast_copy_string(e->name, v->value, sizeof(e->name)); 03872 e->needaudit = 1; 03873 } 03874 /* XXX Should we really check for uniqueness?? XXX */ 03875 ast_copy_string(e->accountcode, accountcode, sizeof(e->accountcode)); 03876 ast_copy_string(e->context, context, sizeof(e->context)); 03877 ast_copy_string(e->cid_num, cid_num, sizeof(e->cid_num)); 03878 ast_copy_string(e->cid_name, cid_name, sizeof(e->cid_name)); 03879 ast_copy_string(e->language, language, sizeof(e->language)); 03880 ast_copy_string(e->musicclass, musicclass, sizeof(e->musicclass)); 03881 ast_copy_string(e->mailbox, mailbox, sizeof(e->mailbox)); 03882 if (!ast_strlen_zero(mailbox)) { 03883 ast_verbose(VERBOSE_PREFIX_3 "Setting mailbox '%s' on %s@%s\n", mailbox, gw->name, e->name); 03884 } 03885 if (!ep_reload) { 03886 /* XXX potential issue due to reload */ 03887 e->msgstate = -1; 03888 e->parent = gw; 03889 } 03890 e->amaflags = amaflags; 03891 e->capability = capability; 03892 e->dtmfmode = dtmfmode; 03893 e->adsi = adsi; 03894 if (!strcasecmp(v->name, "trunk")) 03895 e->type = TYPE_TRUNK; 03896 else 03897 e->type = TYPE_LINE; 03898 03899 e->immediate = immediate; 03900 e->callgroup=cur_callergroup; 03901 e->pickupgroup=cur_pickupgroup; 03902 e->callreturn = callreturn; 03903 e->cancallforward = cancallforward; 03904 e->canreinvite = canreinvite; 03905 e->singlepath = singlepath; 03906 e->callwaiting = callwaiting; 03907 e->hascallwaiting = callwaiting; 03908 e->slowsequence = slowsequence; 03909 e->transfer = transfer; 03910 e->threewaycalling = threewaycalling; 03911 if (!ep_reload) { 03912 e->onhooktime = time(NULL); 03913 /* ASSUME we're onhook */ 03914 e->hookstate = MGCP_ONHOOK; 03915 snprintf(e->rqnt_ident, sizeof(e->rqnt_ident), "%08lx", ast_random()); 03916 } 03917 03918 for (i = 0, sub = NULL; i < MAX_SUBS; i++) { 03919 if (!ep_reload) { 03920 sub = malloc(sizeof(struct mgcp_subchannel)); 03921 } else { 03922 if (!sub) 03923 sub = e->sub; 03924 else 03925 sub = sub->next; 03926 } 03927 03928 if (sub) { 03929 if (!ep_reload) { 03930 ast_verbose(VERBOSE_PREFIX_3 "Allocating subchannel '%d' on %s@%s\n", i, e->name, gw->name); 03931 memset(sub, 0, sizeof(struct mgcp_subchannel)); 03932 ast_mutex_init(&sub->lock); 03933 ast_mutex_init(&sub->cx_queue_lock); 03934 ast_copy_string(sub->magic, MGCP_SUBCHANNEL_MAGIC, sizeof(sub->magic)); 03935 sub->parent = e; 03936 sub->id = i; 03937 snprintf(sub->txident, sizeof(sub->txident), "%08lx", ast_random()); 03938 sub->cxmode = MGCP_CX_INACTIVE; 03939 sub->next = e->sub; 03940 e->sub = sub; 03941 } 03942 sub->nat = nat; 03943 } else { 03944 /* XXX Should find a way to clean up our memory */ 03945 ast_log(LOG_WARNING, "Out of memory allocating subchannel\n"); 03946 return NULL; 03947 } 03948 } 03949 if (!ep_reload) { 03950 /* Make out subs a circular linked list so we can always sping through the whole bunch */ 03951 sub = e->sub; 03952 /* find the end of the list */ 03953 while (sub->next) { 03954 sub = sub->next; 03955 } 03956 /* set the last sub->next to the first sub */ 03957 sub->next = e->sub; 03958 03959 e->next = gw->endpoints; 03960 gw->endpoints = e; 03961 } 03962 } 03963 } else 03964 ast_log(LOG_WARNING, "Don't know keyword '%s' at line %d\n", v->name, v->lineno); 03965 v = v->next; 03966 } 03967 } 03968 if (!ntohl(gw->addr.sin_addr.s_addr) && !gw->dynamic) { 03969 ast_log(LOG_WARNING, "Gateway '%s' lacks IP address and isn't dynamic\n", gw->name); 03970 if (!gw_reload) { 03971 ast_mutex_destroy(&gw->msgs_lock); 03972 free(gw); 03973 } 03974 return NULL; 03975 } 03976 gw->defaddr.sin_family = AF_INET; 03977 gw->addr.sin_family = AF_INET; 03978 if (gw->defaddr.sin_addr.s_addr && !ntohs(gw->defaddr.sin_port)) 03979 gw->defaddr.sin_port = htons(DEFAULT_MGCP_GW_PORT); 03980 if (gw->addr.sin_addr.s_addr && !ntohs(gw->addr.sin_port)) 03981 gw->addr.sin_port = htons(DEFAULT_MGCP_GW_PORT); 03982 if (gw->addr.sin_addr.s_addr) 03983 if (ast_ouraddrfor(&gw->addr.sin_addr, &gw->ourip)) 03984 memcpy(&gw->ourip, &__ourip, sizeof(gw->ourip)); 03985 03986 return (gw_reload ? NULL : gw); 03987 }
static char* control2str | ( | int | ind | ) | [static] |
Definition at line 1386 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().
01386 { 01387 switch (ind) { 01388 case AST_CONTROL_HANGUP: 01389 return "Other end has hungup"; 01390 case AST_CONTROL_RING: 01391 return "Local ring"; 01392 case AST_CONTROL_RINGING: 01393 return "Remote end is ringing"; 01394 case AST_CONTROL_ANSWER: 01395 return "Remote end has answered"; 01396 case AST_CONTROL_BUSY: 01397 return "Remote end is busy"; 01398 case AST_CONTROL_TAKEOFFHOOK: 01399 return "Make it go off hook"; 01400 case AST_CONTROL_OFFHOOK: 01401 return "Line is off hook"; 01402 case AST_CONTROL_CONGESTION: 01403 return "Congestion (circuits busy)"; 01404 case AST_CONTROL_FLASH: 01405 return "Flash hook"; 01406 case AST_CONTROL_WINK: 01407 return "Wink"; 01408 case AST_CONTROL_OPTION: 01409 return "Set a low-level option"; 01410 case AST_CONTROL_RADIO_KEY: 01411 return "Key Radio"; 01412 case AST_CONTROL_RADIO_UNKEY: 01413 return "Un-Key Radio"; 01414 } 01415 return "UNKNOWN"; 01416 }
static void destroy_endpoint | ( | struct mgcp_endpoint * | e | ) | [static] |
Definition at line 4022 of file chan_mgcp.c.
References ast_mutex_lock(), ast_rtp_destroy(), ast_strlen_zero(), mgcp_subchannel::cxident, mgcp_subchannel::lock, MAX_SUBS, mgcp_subchannel::next, mgcp_subchannel::rtp, s, mgcp_endpoint::sub, and transmit_connection_del().
Referenced by prune_gateways().
04023 { 04024 struct mgcp_subchannel *sub = e->sub->next, *s; 04025 int i; 04026 04027 for (i = 0; i < MAX_SUBS; i++) { 04028 ast_mutex_lock(&sub->lock); 04029 if (!ast_strlen_zero(sub->cxident)) { 04030 transmit_connection_del(sub); 04031 } 04032 if (sub->rtp) { 04033 ast_rtp_destroy(sub->rtp); 04034 sub->rtp = NULL; 04035 } 04036 memset(sub->magic, 0, sizeof(sub->magic)); 04037 mgcp_queue_hangup(sub); 04038 dump_cmd_queues(NULL, sub); 04039 ast_mutex_unlock(&sub->lock); 04040 sub = sub->next; 04041 } 04042 04043 if (e->dsp) { 04044 ast_dsp_free(e->dsp); 04045 } 04046 04047 dump_queue(e->parent, e); 04048 dump_cmd_queues(e, NULL); 04049 04050 sub = e->sub; 04051 for (i = 0; (i < MAX_SUBS) && sub; i++) { 04052 s = sub; 04053 sub = sub->next; 04054 ast_mutex_destroy(&s->lock); 04055 ast_mutex_destroy(&s->cx_queue_lock); 04056 free(s); 04057 } 04058 ast_mutex_destroy(&e->lock); 04059 ast_mutex_destroy(&e->rqnt_queue_lock); 04060 ast_mutex_destroy(&e->cmd_queue_lock); 04061 free(e); 04062 }
static void destroy_gateway | ( | struct mgcp_gateway * | g | ) | [static] |
Definition at line 4064 of file chan_mgcp.c.
References ast_free_ha(), dump_queue(), free, and mgcp_gateway::ha.
04065 { 04066 if (g->ha) 04067 ast_free_ha(g->ha); 04068 04069 dump_queue(g, NULL); 04070 04071 free (g); 04072 }
static void* do_monitor | ( | void * | data | ) | [static] |
Definition at line 3442 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(), io, mgcp_do_reload(), MGCP_ONHOOK, mgcp_reloading, mgcpsock, mgcpsock_read(), option_verbose, transmit_notify_request(), TYPE_LINE, and VERBOSE_PREFIX_1.
03443 { 03444 int res; 03445 int reloading; 03446 /*struct mgcp_gateway *g;*/ 03447 /*struct mgcp_endpoint *e;*/ 03448 /*time_t thispass = 0, lastpass = 0;*/ 03449 03450 /* Add an I/O event to our UDP socket */ 03451 if (mgcpsock > -1) 03452 mgcpsock_read_id = ast_io_add(io, mgcpsock, mgcpsock_read, AST_IO_IN, NULL); 03453 03454 /* This thread monitors all the frame relay interfaces which are not yet in use 03455 (and thus do not have a separate thread) indefinitely */ 03456 /* From here on out, we die whenever asked */ 03457 for(;;) { 03458 /* Check for a reload request */ 03459 ast_mutex_lock(&mgcp_reload_lock); 03460 reloading = mgcp_reloading; 03461 mgcp_reloading = 0; 03462 ast_mutex_unlock(&mgcp_reload_lock); 03463 if (reloading) { 03464 if (option_verbose > 0) 03465 ast_verbose(VERBOSE_PREFIX_1 "Reloading MGCP\n"); 03466 mgcp_do_reload(); 03467 /* Add an I/O event to our UDP socket */ 03468 if (mgcpsock > -1) 03469 mgcpsock_read_id = ast_io_add(io, mgcpsock, mgcpsock_read, AST_IO_IN, NULL); 03470 } 03471 03472 /* Check for interfaces needing to be killed */ 03473 /* Don't let anybody kill us right away. Nobody should lock the interface list 03474 and wait for the monitor list, but the other way around is okay. */ 03475 ast_mutex_lock(&monlock); 03476 /* Lock the network interface */ 03477 ast_mutex_lock(&netlock); 03478 03479 #if 0 03480 /* XXX THIS IS COMPLETELY HOSED */ 03481 /* The gateway goes into a state of panic */ 03482 /* If the vmwi indicator is sent while it is reseting interfaces */ 03483 lastpass = thispass; 03484 thispass = time(NULL); 03485 g = gateways; 03486 while(g) { 03487 if (thispass != lastpass) { 03488 e = g->endpoints; 03489 while(e) { 03490 if (e->type == TYPE_LINE) { 03491 res = has_voicemail(e); 03492 if ((e->msgstate != res) && (e->hookstate == MGCP_ONHOOK) && (!e->rtp)){ 03493 if (res) { 03494 transmit_notify_request(e, "L/vmwi(+)"); 03495 } else { 03496 transmit_notify_request(e, "L/vmwi(-)"); 03497 } 03498 e->msgstate = res; 03499 e->onhooktime = thispass; 03500 } 03501 } 03502 e = e->next; 03503 } 03504 } 03505 g = g->next; 03506 } 03507 #endif 03508 /* Okay, now that we know what to do, release the network lock */ 03509 ast_mutex_unlock(&netlock); 03510 /* And from now on, we're okay to be killed, so release the monitor lock as well */ 03511 ast_mutex_unlock(&monlock); 03512 pthread_testcancel(); 03513 /* Wait for sched or io */ 03514 res = ast_sched_wait(sched); 03515 /* copied from chan_sip.c */ 03516 if ((res < 0) || (res > 1000)) 03517 res = 1000; 03518 res = ast_io_wait(io, res); 03519 ast_mutex_lock(&monlock); 03520 if (res >= 0) 03521 ast_sched_runq(sched); 03522 ast_mutex_unlock(&monlock); 03523 } 03524 /* Never reached */ 03525 return NULL; 03526 }
static void dump_cmd_queues | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub | |||
) | [static] |
dump_cmd_queues: (SC:) cleanup pending commands
Definition at line 2393 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 handle_request(), handle_response(), and unalloc_sub().
02394 { 02395 struct mgcp_request *t, *q; 02396 02397 if (p) { 02398 ast_mutex_lock(&p->rqnt_queue_lock); 02399 for (q = p->rqnt_queue; q; t = q->next, free(q), q=t); 02400 p->rqnt_queue = NULL; 02401 ast_mutex_unlock(&p->rqnt_queue_lock); 02402 02403 ast_mutex_lock(&p->cmd_queue_lock); 02404 for (q = p->cmd_queue; q; t = q->next, free(q), q=t); 02405 p->cmd_queue = NULL; 02406 ast_mutex_unlock(&p->cmd_queue_lock); 02407 02408 ast_mutex_lock(&p->sub->cx_queue_lock); 02409 for (q = p->sub->cx_queue; q; t = q->next, free(q), q=t); 02410 p->sub->cx_queue = NULL; 02411 ast_mutex_unlock(&p->sub->cx_queue_lock); 02412 02413 ast_mutex_lock(&p->sub->next->cx_queue_lock); 02414 for (q = p->sub->next->cx_queue; q; t = q->next, free(q), q=t); 02415 p->sub->next->cx_queue = NULL; 02416 ast_mutex_unlock(&p->sub->next->cx_queue_lock); 02417 } else if (sub) { 02418 ast_mutex_lock(&sub->cx_queue_lock); 02419 for (q = sub->cx_queue; q; t = q->next, free(q), q=t); 02420 sub->cx_queue = NULL; 02421 ast_mutex_unlock(&sub->cx_queue_lock); 02422 } 02423 }
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_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 3321 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().
03322 { 03323 int seqno=0; 03324 time_t now; 03325 struct mgcp_response *prev = NULL, *cur, *next, *answer=NULL; 03326 time(&now); 03327 if (sscanf(req->identifier, "%d", &seqno) != 1) 03328 seqno = 0; 03329 cur = sub->parent->parent->responses; 03330 while(cur) { 03331 next = cur->next; 03332 if (now - cur->whensent > RESPONSE_TIMEOUT) { 03333 /* Delete this entry */ 03334 if (prev) 03335 prev->next = next; 03336 else 03337 sub->parent->parent->responses = next; 03338 free(cur); 03339 } else { 03340 if (seqno == cur->seqno) 03341 answer = cur; 03342 prev = cur; 03343 } 03344 cur = next; 03345 } 03346 if (answer) { 03347 resend_response(sub, answer); 03348 return 1; 03349 } 03350 return 0; 03351 }
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] |
find_command: (SC:) remove command transaction from queue
Definition at line 2427 of file chan_mgcp.c.
References mgcp_gateway::addr, ast_inet_ntoa(), ast_mutex_lock(), ast_verbose(), mgcp_postrequest(), mgcp_request::next, and mgcp_endpoint::parent.
Referenced by agi_handle_command(), handle_response(), and handle_showagi().
02429 { 02430 struct mgcp_request *prev, *req; 02431 02432 ast_mutex_lock(l); 02433 for (prev = NULL, req = *queue; req; prev = req, req = req->next) { 02434 if (req->trid == ident) { 02435 /* remove from queue */ 02436 if (!prev) 02437 *queue = req->next; 02438 else 02439 prev->next = req->next; 02440 02441 /* send next pending command */ 02442 if (*queue) { 02443 if (mgcpdebug) { 02444 ast_verbose("Posting Queued Request:\n%s to %s:%d\n", (*queue)->data, 02445 ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 02446 } 02447 02448 mgcp_postrequest(p, sub, (*queue)->data, (*queue)->len, (*queue)->trid); 02449 } 02450 break; 02451 } 02452 } 02453 ast_mutex_unlock(l); 02454 return req; 02455 }
static struct mgcp_subchannel* find_subchannel_and_lock | ( | char * | name, | |
int | msgid, | |||
struct sockaddr_in * | sin | |||
) | [static] |
Definition at line 1620 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().
01621 { 01622 struct mgcp_endpoint *p = NULL; 01623 struct mgcp_subchannel *sub = NULL; 01624 struct mgcp_gateway *g; 01625 char tmp[256] = ""; 01626 char *at = NULL, *c; 01627 int found = 0; 01628 if (name) { 01629 ast_copy_string(tmp, name, sizeof(tmp)); 01630 at = strchr(tmp, '@'); 01631 if (!at) { 01632 ast_log(LOG_NOTICE, "Endpoint '%s' has no at sign!\n", name); 01633 return NULL; 01634 } 01635 *at++ = '\0'; 01636 } 01637 ast_mutex_lock(&gatelock); 01638 if (at && (at[0] == '[')) { 01639 at++; 01640 c = strrchr(at, ']'); 01641 if (c) 01642 *c = '\0'; 01643 } 01644 g = gateways; 01645 while(g) { 01646 if ((!name || !strcasecmp(g->name, at)) && 01647 (sin || g->addr.sin_addr.s_addr || g->defaddr.sin_addr.s_addr)) { 01648 /* Found the gateway. If it's dynamic, save it's address -- now for the endpoint */ 01649 if (sin && g->dynamic && name) { 01650 if ((g->addr.sin_addr.s_addr != sin->sin_addr.s_addr) || 01651 (g->addr.sin_port != sin->sin_port)) { 01652 memcpy(&g->addr, sin, sizeof(g->addr)); 01653 if (ast_ouraddrfor(&g->addr.sin_addr, &g->ourip)) 01654 memcpy(&g->ourip, &__ourip, sizeof(g->ourip)); 01655 if (option_verbose > 2) 01656 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)); 01657 } 01658 } 01659 /* not dynamic, check if the name matches */ 01660 else if (name) { 01661 if (strcasecmp(g->name, at)) { 01662 g = g->next; 01663 continue; 01664 } 01665 } 01666 /* not dynamic, no name, check if the addr matches */ 01667 else if (!name && sin) { 01668 if ((g->addr.sin_addr.s_addr != sin->sin_addr.s_addr) || 01669 (g->addr.sin_port != sin->sin_port)) { 01670 g = g->next; 01671 continue; 01672 } 01673 } else { 01674 g = g->next; 01675 continue; 01676 } 01677 /* SC */ 01678 p = g->endpoints; 01679 while(p) { 01680 if (option_debug) 01681 ast_log(LOG_DEBUG, "Searching on %s@%s for subchannel\n", 01682 p->name, g->name); 01683 if (msgid) { 01684 #if 0 /* new transport mech */ 01685 sub = p->sub; 01686 do { 01687 if (option_debug) 01688 ast_log(LOG_DEBUG, "Searching on %s@%s-%d for subchannel with lastout: %d\n", 01689 p->name, g->name, sub->id, msgid); 01690 if (sub->lastout == msgid) { 01691 if (option_debug) 01692 ast_log(LOG_DEBUG, "Found subchannel sub%d to handle request %d sub->lastout: %d\n", 01693 sub->id, msgid, sub->lastout); 01694 found = 1; 01695 break; 01696 } 01697 sub = sub->next; 01698 } while (sub != p->sub); 01699 if (found) { 01700 break; 01701 } 01702 #endif 01703 /* SC */ 01704 sub = p->sub; 01705 found = 1; 01706 /* SC */ 01707 break; 01708 } else if (name && !strcasecmp(p->name, tmp)) { 01709 ast_log(LOG_DEBUG, "Coundn't determine subchannel, assuming current master %s@%s-%d\n", 01710 p->name, g->name, p->sub->id); 01711 sub = p->sub; 01712 found = 1; 01713 break; 01714 } 01715 p = p->next; 01716 } 01717 if (sub && found) { 01718 ast_mutex_lock(&sub->lock); 01719 break; 01720 } 01721 } 01722 g = g->next; 01723 } 01724 ast_mutex_unlock(&gatelock); 01725 if (!sub) { 01726 if (name) { 01727 if (g) 01728 ast_log(LOG_NOTICE, "Endpoint '%s' not found on gateway '%s'\n", tmp, at); 01729 else 01730 ast_log(LOG_NOTICE, "Gateway '%s' (and thus its endpoint '%s') does not exist\n", at, tmp); 01731 } 01732 } 01733 return sub; 01734 }
static char* get_csv | ( | char * | c, | |
int * | len, | |||
char ** | next | |||
) | [static] |
get_csv: (SC:) get comma separated value
Definition at line 1599 of file chan_mgcp.c.
References s.
Referenced by handle_response().
01600 { 01601 char *s; 01602 01603 *next = NULL, *len = 0; 01604 if (!c) return NULL; 01605 01606 while (*c && (*c < 33 || *c == ',')) 01607 c++; 01608 01609 s = c; 01610 while (*c && (*c >= 33 && *c != ',')) 01611 c++, (*len)++; 01612 *next = c; 01613 01614 if (*len == 0) 01615 s = NULL, *next = NULL; 01616 01617 return s; 01618 }
static char* get_header | ( | struct mgcp_request * | req, | |
char * | name | |||
) | [static] |
Definition at line 1592 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().
01593 { 01594 int start = 0; 01595 return __get_header(req, name, &start); 01596 }
static char* get_sdp | ( | struct mgcp_request * | req, | |
char * | name | |||
) | [static] |
Definition at line 1544 of file chan_mgcp.c.
References get_sdp_by_line(), len, mgcp_request::line, and mgcp_request::lines.
Referenced by process_sdp().
01545 { 01546 int x; 01547 int len = strlen(name); 01548 char *r; 01549 01550 for (x=0; x<req->lines; x++) { 01551 r = get_sdp_by_line(req->line[x], name, len); 01552 if (r[0] != '\0') return r; 01553 } 01554 return ""; 01555 }
static char* get_sdp_by_line | ( | char * | line, | |
char * | name, | |||
int | nameLen | |||
) | [static] |
Definition at line 1534 of file chan_mgcp.c.
Referenced by get_sdp(), and get_sdp_iterate().
01535 { 01536 if (strncasecmp(line, name, nameLen) == 0 && line[nameLen] == '=') { 01537 char* r = line + nameLen + 1; 01538 while (*r && (*r < 33)) ++r; 01539 return r; 01540 } 01541 return ""; 01542 }
static char* get_sdp_iterate | ( | int * | iterator, | |
struct mgcp_request * | req, | |||
char * | name | |||
) | [static] |
Definition at line 1562 of file chan_mgcp.c.
References get_sdp_by_line(), len, and mgcp_request::line.
Referenced by get_sdp(), and process_sdp().
01563 { 01564 int len = strlen(name); 01565 char *r; 01566 while (*iterator < req->lines) { 01567 r = get_sdp_by_line(req->line[(*iterator)++], name, len); 01568 if (r[0] != '\0') return r; 01569 } 01570 return ""; 01571 }
static void handle_hd_hf | ( | struct mgcp_subchannel * | sub, | |
char * | ev | |||
) | [static] |
Definition at line 2972 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(), mgcp_endpoint::sub, t, transmit_modify_request(), and transmit_notify_request().
Referenced by handle_request().
02973 { 02974 struct mgcp_endpoint *p = sub->parent; 02975 struct ast_channel *c; 02976 pthread_t t; 02977 pthread_attr_t attr; 02978 pthread_attr_init(&attr); 02979 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); 02980 02981 /* Off hook / answer */ 02982 if (sub->outgoing) { 02983 /* Answered */ 02984 if (sub->owner) { 02985 if (ast_bridged_channel(sub->owner)) 02986 ast_queue_control(sub->owner, AST_CONTROL_UNHOLD); 02987 sub->cxmode = MGCP_CX_SENDRECV; 02988 if (!sub->rtp) { 02989 start_rtp(sub); 02990 } else { 02991 transmit_modify_request(sub); 02992 } 02993 /*transmit_notify_request(sub, "aw");*/ 02994 transmit_notify_request(sub, ""); 02995 mgcp_queue_control(sub, AST_CONTROL_ANSWER); 02996 } 02997 } else { 02998 /* Start switch */ 02999 /*sub->cxmode = MGCP_CX_SENDRECV;*/ 03000 if (!sub->owner) { 03001 if (!sub->rtp) { 03002 start_rtp(sub); 03003 } else { 03004 transmit_modify_request(sub); 03005 } 03006 if (p->immediate) { 03007 /* The channel is immediately up. Start right away */ 03008 #ifdef DLINK_BUGGY_FIRMWARE 03009 transmit_notify_request(sub, "rt"); 03010 #else 03011 transmit_notify_request(sub, "G/rt"); 03012 #endif 03013 c = mgcp_new(sub, AST_STATE_RING); 03014 if (!c) { 03015 ast_log(LOG_WARNING, "Unable to start PBX on channel %s@%s\n", p->name, p->parent->name); 03016 transmit_notify_request(sub, "G/cg"); 03017 ast_hangup(c); 03018 } 03019 } else { 03020 if (has_voicemail(p)) { 03021 transmit_notify_request(sub, "L/sl"); 03022 } else { 03023 transmit_notify_request(sub, "L/dl"); 03024 } 03025 c = mgcp_new(sub, AST_STATE_DOWN); 03026 if (c) { 03027 if (ast_pthread_create(&t, &attr, mgcp_ss, c)) { 03028 ast_log(LOG_WARNING, "Unable to create switch thread: %s\n", strerror(errno)); 03029 ast_hangup(c); 03030 } 03031 } else { 03032 ast_log(LOG_WARNING, "Unable to create channel for %s@%s\n", p->name, p->parent->name); 03033 } 03034 } 03035 } else { 03036 if (p->hookstate == MGCP_OFFHOOK) { 03037 ast_log(LOG_WARNING, "Off hook, but already have owner on %s@%s\n", p->name, p->parent->name); 03038 } else { 03039 ast_log(LOG_WARNING, "On hook, but already have owner on %s@%s\n", p->name, p->parent->name); 03040 ast_log(LOG_WARNING, "If we're onhook why are we here trying to handle a hd or hf?\n"); 03041 } 03042 if (ast_bridged_channel(sub->owner)) 03043 ast_queue_control(sub->owner, AST_CONTROL_UNHOLD); 03044 sub->cxmode = MGCP_CX_SENDRECV; 03045 if (!sub->rtp) { 03046 start_rtp(sub); 03047 } else { 03048 transmit_modify_request(sub); 03049 } 03050 /*transmit_notify_request(sub, "aw");*/ 03051 transmit_notify_request(sub, ""); 03052 /*ast_queue_control(sub->owner, AST_CONTROL_ANSWER);*/ 03053 } 03054 } 03055 pthread_attr_destroy(&attr); 03056 }
static int handle_request | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | req, | |||
struct sockaddr_in * | sin | |||
) | [static] |
Definition at line 3058 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, f, 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_subchannel::next, mgcp_endpoint::next, option_verbose, mgcp_subchannel::outgoing, mgcp_subchannel::owner, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_subchannel::rtp, s, mgcp_endpoint::sub, 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().
03059 { 03060 char *ev, *s; 03061 struct ast_frame f = { 0, }; 03062 struct mgcp_endpoint *p = sub->parent; 03063 struct mgcp_gateway *g = NULL; 03064 int res; 03065 03066 if (mgcpdebug) { 03067 ast_verbose("Handling request '%s' on %s@%s\n", req->verb, p->name, p->parent->name); 03068 } 03069 /* Clear out potential response */ 03070 if (!strcasecmp(req->verb, "RSIP")) { 03071 /* Test if this RSIP request is just a keepalive */ 03072 if(!strcasecmp( get_header(req, "RM"), "X-keepalive")) { 03073 if (option_verbose > 2) 03074 ast_verbose(VERBOSE_PREFIX_3 "Received keepalive request from %s@%s\n", p->name, p->parent->name); 03075 transmit_response(sub, "200", req, "OK"); 03076 } else { 03077 dump_queue(p->parent, p); 03078 dump_cmd_queues(p, NULL); 03079 03080 if (option_verbose > 2 && (strcmp(p->name, p->parent->wcardep) != 0)) { 03081 ast_verbose(VERBOSE_PREFIX_3 "Resetting interface %s@%s\n", p->name, p->parent->name); 03082 } 03083 /* For RSIP on wildcard we reset all endpoints */ 03084 if (!strcmp(p->name, p->parent->wcardep)) { 03085 /* Reset all endpoints */ 03086 struct mgcp_endpoint *tmp_ep; 03087 03088 g = p->parent; 03089 tmp_ep = g->endpoints; 03090 while (tmp_ep) { 03091 /*if ((strcmp(tmp_ep->name, "*") != 0) && (strcmp(tmp_ep->name, "aaln/" "*") != 0)) {*/ 03092 if (strcmp(tmp_ep->name, g->wcardep) != 0) { 03093 struct mgcp_subchannel *tmp_sub, *first_sub; 03094 if (option_verbose > 2) { 03095 ast_verbose(VERBOSE_PREFIX_3 "Resetting interface %s@%s\n", tmp_ep->name, p->parent->name); 03096 } 03097 03098 first_sub = tmp_ep->sub; 03099 tmp_sub = tmp_ep->sub; 03100 while (tmp_sub) { 03101 mgcp_queue_hangup(tmp_sub); 03102 tmp_sub = tmp_sub->next; 03103 if (tmp_sub == first_sub) 03104 break; 03105 } 03106 } 03107 tmp_ep = tmp_ep->next; 03108 } 03109 } else if (sub->owner) { 03110 mgcp_queue_hangup(sub); 03111 } 03112 transmit_response(sub, "200", req, "OK"); 03113 /* We dont send NTFY or AUEP to wildcard ep */ 03114 if (strcmp(p->name, p->parent->wcardep) != 0) { 03115 transmit_notify_request(sub, ""); 03116 /* Audit endpoint. 03117 Idea is to prevent lost lines due to race conditions 03118 */ 03119 transmit_audit_endpoint(p); 03120 } 03121 } 03122 } else if (!strcasecmp(req->verb, "NTFY")) { 03123 /* Acknowledge and be sure we keep looking for the same things */ 03124 transmit_response(sub, "200", req, "OK"); 03125 /* Notified of an event */ 03126 ev = get_header(req, "O"); 03127 s = strchr(ev, '/'); 03128 if (s) ev = s + 1; 03129 ast_log(LOG_DEBUG, "Endpoint '%s@%s-%d' observed '%s'\n", p->name, p->parent->name, sub->id, ev); 03130 /* Keep looking for events unless this was a hangup */ 03131 if (strcasecmp(ev, "hu") && strcasecmp(ev, "hd") && strcasecmp(ev, "ping")) { 03132 transmit_notify_request(sub, p->curtone); 03133 } 03134 if (!strcasecmp(ev, "hd")) { 03135 p->hookstate = MGCP_OFFHOOK; 03136 sub->cxmode = MGCP_CX_SENDRECV; 03137 handle_hd_hf(sub, ev); 03138 } else if (!strcasecmp(ev, "hf")) { 03139 /* We can assume we are offhook if we received a hookflash */ 03140 /* First let's just do call wait and ignore threeway */ 03141 /* We're currently in charge */ 03142 if (p->hookstate != MGCP_OFFHOOK) { 03143 /* Cisco c7940 sends hf even if the phone is onhook */ 03144 /* Thanks to point on IRC for pointing this out */ 03145 return -1; 03146 } 03147 /* do not let * conference two down channels */ 03148 if (sub->owner && sub->owner->_state == AST_STATE_DOWN && !sub->next->owner) 03149 return -1; 03150 03151 if (p->callwaiting || p->transfer || p->threewaycalling) { 03152 if (option_verbose > 2) { 03153 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); 03154 } 03155 p->sub = p->sub->next; 03156 03157 /* transfer control to our next subchannel */ 03158 if (!sub->next->owner) { 03159 /* plave the first call on hold and start up a new call */ 03160 sub->cxmode = MGCP_CX_MUTE; 03161 if (option_verbose > 2) { 03162 ast_verbose(VERBOSE_PREFIX_3 "MGCP Muting %d on %s@%s\n", sub->id, p->name, p->parent->name); 03163 } 03164 transmit_modify_request(sub); 03165 if (sub->owner && ast_bridged_channel(sub->owner)) 03166 ast_queue_control(sub->owner, AST_CONTROL_HOLD); 03167 sub->next->cxmode = MGCP_CX_RECVONLY; 03168 handle_hd_hf(sub->next, ev); 03169 } else if (sub->owner && sub->next->owner) { 03170 /* We've got two active calls lets decide whether or not to conference or just flip flop */ 03171 if ((!sub->outgoing) && (!sub->next->outgoing)) { 03172 /* We made both calls lets conferenct */ 03173 if (option_verbose > 2) { 03174 ast_verbose(VERBOSE_PREFIX_3 "MGCP Conferencing %d and %d on %s@%s\n", 03175 sub->id, sub->next->id, p->name, p->parent->name); 03176 } 03177 sub->cxmode = MGCP_CX_CONF; 03178 sub->next->cxmode = MGCP_CX_CONF; 03179 if (ast_bridged_channel(sub->next->owner)) 03180 ast_queue_control(sub->next->owner, AST_CONTROL_UNHOLD); 03181 transmit_modify_request(sub); 03182 transmit_modify_request(sub->next); 03183 } else { 03184 /* Let's flipflop between calls */ 03185 /* XXX Need to check for state up ??? */ 03186 /* XXX Need a way to indicate the current call, or maybe the call that's waiting */ 03187 if (option_verbose > 2) { 03188 ast_verbose(VERBOSE_PREFIX_3 "We didn't make one of the calls FLIPFLOP %d and %d on %s@%s\n", 03189 sub->id, sub->next->id, p->name, p->parent->name); 03190 } 03191 sub->cxmode = MGCP_CX_MUTE; 03192 if (option_verbose > 2) { 03193 ast_verbose(VERBOSE_PREFIX_3 "MGCP Muting %d on %s@%s\n", sub->id, p->name, p->parent->name); 03194 } 03195 transmit_modify_request(sub); 03196 if (ast_bridged_channel(sub->owner)) 03197 ast_queue_control(sub->owner, AST_CONTROL_HOLD); 03198 03199 if (ast_bridged_channel(sub->next->owner)) 03200 ast_queue_control(sub->next->owner, AST_CONTROL_HOLD); 03201 03202 handle_hd_hf(sub->next, ev); 03203 } 03204 } else { 03205 /* We've most likely lost one of our calls find an active call and bring it up */ 03206 if (sub->owner) { 03207 p->sub = sub; 03208 } else if (sub->next->owner) { 03209 p->sub = sub->next; 03210 } else { 03211 /* We seem to have lost both our calls */ 03212 /* XXX - What do we do now? */ 03213 return -1; 03214 } 03215 if (ast_bridged_channel(p->sub->owner)) 03216 ast_queue_control(p->sub->owner, AST_CONTROL_UNHOLD); 03217 p->sub->cxmode = MGCP_CX_SENDRECV; 03218 transmit_modify_request(p->sub); 03219 } 03220 } else { 03221 ast_log(LOG_WARNING, "Callwaiting, call transfer or threeway calling not enabled on endpoint %s@%s\n", 03222 p->name, p->parent->name); 03223 } 03224 } else if (!strcasecmp(ev, "hu")) { 03225 p->hookstate = MGCP_ONHOOK; 03226 sub->cxmode = MGCP_CX_RECVONLY; 03227 ast_log(LOG_DEBUG, "MGCP %s@%s Went on hook\n", p->name, p->parent->name); 03228 /* Do we need to send MDCX before a DLCX ? 03229 if (sub->rtp) { 03230 transmit_modify_request(sub); 03231 } 03232 */ 03233 if (p->transfer && (sub->owner && sub->next->owner) && ((!sub->outgoing) || (!sub->next->outgoing))) { 03234 /* We're allowed to transfer, we have two avtive calls and */ 03235 /* we made at least one of the calls. Let's try and transfer */ 03236 ast_mutex_lock(&p->sub->next->lock); 03237 res = attempt_transfer(p); 03238 if (res < 0) { 03239 if (p->sub->next->owner) { 03240 sub->next->alreadygone = 1; 03241 mgcp_queue_hangup(sub->next); 03242 } 03243 } else if (res) { 03244 ast_log(LOG_WARNING, "Transfer attempt failed\n"); 03245 ast_mutex_unlock(&p->sub->next->lock); 03246 return -1; 03247 } 03248 ast_mutex_unlock(&p->sub->next->lock); 03249 } else { 03250 /* Hangup the current call */ 03251 /* If there is another active call, mgcp_hangup will ring the phone with the other call */ 03252 if (sub->owner) { 03253 sub->alreadygone = 1; 03254 mgcp_queue_hangup(sub); 03255 } else { 03256 /* verbose level check */ 03257 if (option_verbose > 2) { 03258 ast_verbose(VERBOSE_PREFIX_3 "MGCP handle_request(%s@%s-%d) ast_channel already destroyed, resending DLCX.\n", 03259 p->name, p->parent->name, sub->id); 03260 } 03261 /* Instruct the other side to remove the connection since it apparently * 03262 * still thinks the channel is active. * 03263 * For Cisco IAD2421 /BAK/ */ 03264 transmit_connection_del(sub); 03265 } 03266 } 03267 if ((p->hookstate == MGCP_ONHOOK) && (!sub->rtp) && (!sub->next->rtp)) { 03268 p->hidecallerid = 0; 03269 if (p->hascallwaiting && !p->callwaiting) { 03270 if (option_verbose > 2) 03271 ast_verbose(VERBOSE_PREFIX_3 "Enabling call waiting on MGCP/%s@%s-%d\n", p->name, p->parent->name, sub->id); 03272 p->callwaiting = -1; 03273 } 03274 if (has_voicemail(p)) { 03275 if (option_verbose > 2) { 03276 ast_verbose(VERBOSE_PREFIX_3 "MGCP handle_request(%s@%s) set vmwi(+)\n", p->name, p->parent->name); 03277 } 03278 transmit_notify_request(sub, "L/vmwi(+)"); 03279 } else { 03280 if (option_verbose > 2) { 03281 ast_verbose(VERBOSE_PREFIX_3 "MGCP handle_request(%s@%s) set vmwi(-)\n", p->name, p->parent->name); 03282 } 03283 transmit_notify_request(sub, "L/vmwi(-)"); 03284 } 03285 } 03286 } else if ((strlen(ev) == 1) && 03287 (((ev[0] >= '0') && (ev[0] <= '9')) || 03288 ((ev[0] >= 'A') && (ev[0] <= 'D')) || 03289 (ev[0] == '*') || (ev[0] == '#'))) { 03290 if (sub && sub->owner && (sub->owner->_state >= AST_STATE_UP)) { 03291 f.frametype = AST_FRAME_DTMF; 03292 f.subclass = ev[0]; 03293 f.src = "mgcp"; 03294 /* XXX MUST queue this frame to all subs in threeway call if threeway call is active */ 03295 mgcp_queue_frame(sub, &f); 03296 ast_mutex_lock(&sub->next->lock); 03297 if (sub->next->owner) 03298 mgcp_queue_frame(sub->next, &f); 03299 ast_mutex_unlock(&sub->next->lock); 03300 if (strstr(p->curtone, "wt") && (ev[0] == 'A')) { 03301 memset(p->curtone, 0, sizeof(p->curtone)); 03302 } 03303 } else { 03304 p->dtmf_buf[strlen(p->dtmf_buf)] = ev[0]; 03305 p->dtmf_buf[strlen(p->dtmf_buf)] = '\0'; 03306 } 03307 } else if (!strcasecmp(ev, "T")) { 03308 /* Digit timeout -- unimportant */ 03309 } else if (!strcasecmp(ev, "ping")) { 03310 /* ping -- unimportant */ 03311 } else { 03312 ast_log(LOG_NOTICE, "Received unknown event '%s' from %s@%s\n", ev, p->name, p->parent->name); 03313 } 03314 } else { 03315 ast_log(LOG_WARNING, "Unknown verb '%s' received from %s\n", req->verb, ast_inet_ntoa(sin->sin_addr)); 03316 transmit_response(sub, "510", req, "Unknown verb"); 03317 } 03318 return 0; 03319 }
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 2458 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().
02460 { 02461 char *c; 02462 struct mgcp_request *req; 02463 struct mgcp_gateway *gw = p->parent; 02464 02465 if (result < 200) { 02466 /* provisional response */ 02467 return; 02468 } 02469 02470 if (p->slowsequence) 02471 req = find_command(p, sub, &p->cmd_queue, &p->cmd_queue_lock, ident); 02472 else if (sub) 02473 req = find_command(p, sub, &sub->cx_queue, &sub->cx_queue_lock, ident); 02474 else if (!(req = find_command(p, sub, &p->rqnt_queue, &p->rqnt_queue_lock, ident))) 02475 req = find_command(p, sub, &p->cmd_queue, &p->cmd_queue_lock, ident); 02476 02477 if (!req) { 02478 if (option_verbose > 2) { 02479 ast_verbose(VERBOSE_PREFIX_3 "No command found on [%s] for transaction %d. Ignoring...\n", 02480 gw->name, ident); 02481 } 02482 return; 02483 } 02484 02485 if (p && (result >= 400) && (result <= 599)) { 02486 switch (result) { 02487 case 401: 02488 p->hookstate = MGCP_OFFHOOK; 02489 break; 02490 case 402: 02491 p->hookstate = MGCP_ONHOOK; 02492 break; 02493 case 406: 02494 ast_log(LOG_NOTICE, "Transaction %d timed out\n", ident); 02495 break; 02496 case 407: 02497 ast_log(LOG_NOTICE, "Transaction %d aborted\n", ident); 02498 break; 02499 } 02500 if (sub) { 02501 if (sub->owner) { 02502 ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s-%d\n", 02503 result, p->name, p->parent->name, sub ? sub->id:-1); 02504 mgcp_queue_hangup(sub); 02505 } 02506 } else { 02507 if (p->sub->next->owner) { 02508 ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s-%d\n", 02509 result, p->name, p->parent->name, sub ? sub->id:-1); 02510 mgcp_queue_hangup(p->sub); 02511 } 02512 02513 if (p->sub->owner) { 02514 ast_log(LOG_NOTICE, "Terminating on result %d from %s@%s-%d\n", 02515 result, p->name, p->parent->name, sub ? sub->id:-1); 02516 mgcp_queue_hangup(p->sub); 02517 } 02518 02519 dump_cmd_queues(p, NULL); 02520 } 02521 } 02522 02523 if (resp) { 02524 if (req->cmd == MGCP_CMD_CRCX) { 02525 if ((c = get_header(resp, "I"))) { 02526 if (!ast_strlen_zero(c) && sub) { 02527 /* if we are hanging up do not process this conn. */ 02528 if (sub->owner) { 02529 if (!ast_strlen_zero(sub->cxident)) { 02530 if (strcasecmp(c, sub->cxident)) { 02531 ast_log(LOG_WARNING, "Subchannel already has a cxident. sub->cxident: %s requested %s\n", sub->cxident, c); 02532 } 02533 } 02534 ast_copy_string(sub->cxident, c, sizeof(sub->cxident)); 02535 if (sub->tmpdest.sin_addr.s_addr) { 02536 transmit_modify_with_sdp(sub, NULL, 0); 02537 } 02538 } else { 02539 /* XXX delete this one 02540 callid and conn id may already be lost. 02541 so the following del conn may have a side effect of 02542 cleaning up the next subchannel */ 02543 transmit_connection_del(sub); 02544 } 02545 } 02546 } 02547 } 02548 02549 if (req->cmd == MGCP_CMD_AUEP) { 02550 /* check stale connection ids */ 02551 if ((c = get_header(resp, "I"))) { 02552 char *v, *n; 02553 int len; 02554 while ((v = get_csv(c, &len, &n))) { 02555 if (len) { 02556 if (strncasecmp(v, p->sub->cxident, len) && 02557 strncasecmp(v, p->sub->next->cxident, len)) { 02558 /* connection id not found. delete it */ 02559 char cxident[80] = ""; 02560 02561 if (len > (sizeof(cxident) - 1)) 02562 len = sizeof(cxident) - 1; 02563 ast_copy_string(cxident, v, len); 02564 if (option_verbose > 2) { 02565 ast_verbose(VERBOSE_PREFIX_3 "Non existing connection id %s on %s@%s \n", 02566 cxident, p->name, gw->name); 02567 } 02568 transmit_connection_del_w_params(p, NULL, cxident); 02569 } 02570 } 02571 c = n; 02572 } 02573 } 02574 02575 /* Try to determine the hookstate returned from an audit endpoint command */ 02576 if ((c = get_header(resp, "ES"))) { 02577 if (!ast_strlen_zero(c)) { 02578 if (strstr(c, "hu")) { 02579 if (p->hookstate != MGCP_ONHOOK) { 02580 /* XXX cleanup if we think we are offhook XXX */ 02581 if ((p->sub->owner || p->sub->next->owner ) && 02582 p->hookstate == MGCP_OFFHOOK) 02583 mgcp_queue_hangup(sub); 02584 p->hookstate = MGCP_ONHOOK; 02585 02586 /* update the requested events according to the new hookstate */ 02587 transmit_notify_request(p->sub, ""); 02588 02589 /* verbose level check */ 02590 if (option_verbose > 2) { 02591 ast_verbose(VERBOSE_PREFIX_3 "Setting hookstate of %s@%s to ONHOOK\n", p->name, gw->name); 02592 } 02593 } 02594 } else if (strstr(c, "hd")) { 02595 if (p->hookstate != MGCP_OFFHOOK) { 02596 p->hookstate = MGCP_OFFHOOK; 02597 02598 /* update the requested events according to the new hookstate */ 02599 transmit_notify_request(p->sub, ""); 02600 02601 /* verbose level check */ 02602 if (option_verbose > 2) { 02603 ast_verbose(VERBOSE_PREFIX_3 "Setting hookstate of %s@%s to OFFHOOK\n", p->name, gw->name); 02604 } 02605 } 02606 } 02607 } 02608 } 02609 } 02610 02611 if (resp && resp->lines) { 02612 /* do not process sdp if we are hanging up. this may be a late response */ 02613 if (sub && sub->owner) { 02614 if (!sub->rtp) 02615 start_rtp(sub); 02616 if (sub->rtp) 02617 process_sdp(sub, resp); 02618 } 02619 } 02620 } 02621 02622 free(req); 02623 }
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 1985 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, oseq, and mgcp_endpoint::parent.
Referenced by initreqprep(), reqprep(), and transmit_register().
01986 { 01987 /* Initialize a response */ 01988 if (req->headers || req->len) { 01989 ast_log(LOG_WARNING, "Request already initialized?!?\n"); 01990 return -1; 01991 } 01992 req->header[req->headers] = req->data + req->len; 01993 /* check if we need brackets around the gw name */ 01994 if (p->parent->isnamedottedip) 01995 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); 01996 else 01997 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); 01998 req->len += strlen(req->header[req->headers]); 01999 if (req->headers < MGCP_MAX_HEADERS) 02000 req->headers++; 02001 else 02002 ast_log(LOG_WARNING, "Out of header space\n"); 02003 return 0; 02004 }
static int init_resp | ( | struct mgcp_request * | req, | |
char * | resp, | |||
struct mgcp_request * | orig, | |||
char * | resprest | |||
) | [static] |
Definition at line 1968 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().
01969 { 01970 /* Initialize a response */ 01971 if (req->headers || req->len) { 01972 ast_log(LOG_WARNING, "Request already initialized?!?\n"); 01973 return -1; 01974 } 01975 req->header[req->headers] = req->data + req->len; 01976 snprintf(req->header[req->headers], sizeof(req->data) - req->len, "%s %s %s\r\n", resp, orig->identifier, resprest); 01977 req->len += strlen(req->header[req->headers]); 01978 if (req->headers < MGCP_MAX_HEADERS) 01979 req->headers++; 01980 else 01981 ast_log(LOG_WARNING, "Out of header space\n"); 01982 return 0; 01983 }
static int load_module | ( | void | ) | [static] |
load_module: PBX load module - initialization ---
Definition at line 4299 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(), cli_mgcp, io, io_context_create(), io_context_destroy(), LOG_ERROR, LOG_WARNING, mgcp_rtp, mgcp_tech, reload_config(), restart_monitor(), sched_context_create(), and sched_context_destroy().
04300 { 04301 if (!(sched = sched_context_create())) { 04302 ast_log(LOG_WARNING, "Unable to create schedule context\n"); 04303 return AST_MODULE_LOAD_FAILURE; 04304 } 04305 04306 if (!(io = io_context_create())) { 04307 ast_log(LOG_WARNING, "Unable to create I/O context\n"); 04308 sched_context_destroy(sched); 04309 return AST_MODULE_LOAD_FAILURE; 04310 } 04311 04312 if (reload_config()) 04313 return AST_MODULE_LOAD_DECLINE; 04314 04315 /* Make sure we can register our mgcp channel type */ 04316 if (ast_channel_register(&mgcp_tech)) { 04317 ast_log(LOG_ERROR, "Unable to register channel class 'MGCP'\n"); 04318 io_context_destroy(io); 04319 sched_context_destroy(sched); 04320 return AST_MODULE_LOAD_FAILURE; 04321 } 04322 04323 ast_rtp_proto_register(&mgcp_rtp); 04324 ast_cli_register_multiple(cli_mgcp, sizeof(cli_mgcp) / sizeof(struct ast_cli_entry)); 04325 04326 /* And start the monitor for the first time */ 04327 restart_monitor(); 04328 04329 return AST_MODULE_LOAD_SUCCESS; 04330 }
static int mgcp_answer | ( | struct ast_channel * | ast | ) | [static] |
Definition at line 1165 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(), mgcp_endpoint::sub, ast_channel::tech_pvt, transmit_modify_request(), transmit_notify_request(), and VERBOSE_PREFIX_3.
01166 { 01167 int res = 0; 01168 struct mgcp_subchannel *sub = ast->tech_pvt; 01169 struct mgcp_endpoint *p = sub->parent; 01170 01171 ast_mutex_lock(&sub->lock); 01172 sub->cxmode = MGCP_CX_SENDRECV; 01173 if (!sub->rtp) { 01174 start_rtp(sub); 01175 } else { 01176 transmit_modify_request(sub); 01177 } 01178 /* verbose level check */ 01179 if (option_verbose > 2) { 01180 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_answer(%s) on %s@%s-%d\n", 01181 ast->name, p->name, p->parent->name, sub->id); 01182 } 01183 if (ast->_state != AST_STATE_UP) { 01184 ast_setstate(ast, AST_STATE_UP); 01185 if (option_debug) 01186 ast_log(LOG_DEBUG, "mgcp_answer(%s)\n", ast->name); 01187 transmit_notify_request(sub, ""); 01188 transmit_modify_request(sub); 01189 } 01190 ast_mutex_unlock(&sub->lock); 01191 return res; 01192 }
static int mgcp_audit_endpoint | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1072 of file chan_mgcp.c.
References ast_cli(), ast_mutex_lock(), ast_mutex_unlock(), mgcp_gateway::endpoints, gateways, mgcpdebug, mgcp_endpoint::name, mgcp_gateway::name, mgcp_gateway::next, mgcp_endpoint::next, RESULT_SHOWUSAGE, RESULT_SUCCESS, and transmit_audit_endpoint().
01073 { 01074 struct mgcp_gateway *g; 01075 struct mgcp_endpoint *e; 01076 int found = 0; 01077 char *ename,*gname, *c; 01078 01079 if (!mgcpdebug) { 01080 return RESULT_SHOWUSAGE; 01081 } 01082 if (argc != 4) 01083 return RESULT_SHOWUSAGE; 01084 /* split the name into parts by null */ 01085 ename = argv[3]; 01086 gname = ename; 01087 while (*gname) { 01088 if (*gname == '@') { 01089 *gname = 0; 01090 gname++; 01091 break; 01092 } 01093 gname++; 01094 } 01095 if (gname[0] == '[') 01096 gname++; 01097 if ((c = strrchr(gname, ']'))) 01098 *c = '\0'; 01099 ast_mutex_lock(&gatelock); 01100 g = gateways; 01101 while(g) { 01102 if (!strcasecmp(g->name, gname)) { 01103 e = g->endpoints; 01104 while(e) { 01105 if (!strcasecmp(e->name, ename)) { 01106 found = 1; 01107 transmit_audit_endpoint(e); 01108 break; 01109 } 01110 e = e->next; 01111 } 01112 if (found) { 01113 break; 01114 } 01115 } 01116 g = g->next; 01117 } 01118 if (!found) { 01119 ast_cli(fd, " << Could not find endpoint >> "); 01120 } 01121 ast_mutex_unlock(&gatelock); 01122 return RESULT_SUCCESS; 01123 }
static int mgcp_call | ( | struct ast_channel * | ast, | |
char * | dest, | |||
int | timeout | |||
) | [static] |
Definition at line 824 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, mgcpdebug, 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.
00825 { 00826 int res; 00827 struct mgcp_endpoint *p; 00828 struct mgcp_subchannel *sub; 00829 char tone[50] = ""; 00830 const char *distinctive_ring = NULL; 00831 struct varshead *headp; 00832 struct ast_var_t *current; 00833 00834 if (mgcpdebug) { 00835 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_call(%s)\n", ast->name); 00836 } 00837 sub = ast->tech_pvt; 00838 p = sub->parent; 00839 headp = &ast->varshead; 00840 AST_LIST_TRAVERSE(headp,current,entries) { 00841 /* Check whether there is an ALERT_INFO variable */ 00842 if (strcasecmp(ast_var_name(current),"ALERT_INFO") == 0) { 00843 distinctive_ring = ast_var_value(current); 00844 } 00845 } 00846 00847 ast_mutex_lock(&sub->lock); 00848 switch (p->hookstate) { 00849 case MGCP_OFFHOOK: 00850 if (!ast_strlen_zero(distinctive_ring)) { 00851 snprintf(tone, sizeof(tone), "L/wt%s", distinctive_ring); 00852 if (mgcpdebug) { 00853 ast_verbose(VERBOSE_PREFIX_3 "MGCP distinctive callwait %s\n", tone); 00854 } 00855 } else { 00856 snprintf(tone, sizeof(tone), "L/wt"); 00857 if (mgcpdebug) { 00858 ast_verbose(VERBOSE_PREFIX_3 "MGCP normal callwait %s\n", tone); 00859 } 00860 } 00861 break; 00862 case MGCP_ONHOOK: 00863 default: 00864 if (!ast_strlen_zero(distinctive_ring)) { 00865 snprintf(tone, sizeof(tone), "L/r%s", distinctive_ring); 00866 if (mgcpdebug) { 00867 ast_verbose(VERBOSE_PREFIX_3 "MGCP distinctive ring %s\n", tone); 00868 } 00869 } else { 00870 snprintf(tone, sizeof(tone), "L/rg"); 00871 if (mgcpdebug) { 00872 ast_verbose(VERBOSE_PREFIX_3 "MGCP default ring\n"); 00873 } 00874 } 00875 break; 00876 } 00877 00878 if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) { 00879 ast_log(LOG_WARNING, "mgcp_call called on %s, neither down nor reserved\n", ast->name); 00880 ast_mutex_unlock(&sub->lock); 00881 return -1; 00882 } 00883 00884 res = 0; 00885 sub->outgoing = 1; 00886 sub->cxmode = MGCP_CX_RECVONLY; 00887 if (p->type == TYPE_LINE) { 00888 if (!sub->rtp) { 00889 start_rtp(sub); 00890 } else { 00891 transmit_modify_request(sub); 00892 } 00893 00894 if (sub->next->owner && !ast_strlen_zero(sub->next->cxident) && !ast_strlen_zero(sub->next->callid)) { 00895 /* try to prevent a callwait from disturbing the other connection */ 00896 sub->next->cxmode = MGCP_CX_RECVONLY; 00897 transmit_modify_request(sub->next); 00898 } 00899 00900 transmit_notify_request_with_callerid(sub, tone, ast->cid.cid_num, ast->cid.cid_name); 00901 ast_setstate(ast, AST_STATE_RINGING); 00902 00903 if (sub->next->owner && !ast_strlen_zero(sub->next->cxident) && !ast_strlen_zero(sub->next->callid)) { 00904 /* Put the connection back in sendrecv */ 00905 sub->next->cxmode = MGCP_CX_SENDRECV; 00906 transmit_modify_request(sub->next); 00907 } 00908 } else { 00909 ast_log(LOG_NOTICE, "Don't know how to dial on trunks yet\n"); 00910 res = -1; 00911 } 00912 ast_mutex_unlock(&sub->lock); 00913 ast_queue_control(ast, AST_CONTROL_RINGING); 00914 return res; 00915 }
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 1338 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.
01339 { 01340 struct mgcp_gateway *g; 01341 struct mgcp_endpoint *e = NULL; 01342 char *tmp, *endpt, *gw; 01343 int ret = AST_DEVICE_INVALID; 01344 01345 endpt = ast_strdupa(data); 01346 if ((tmp = strchr(endpt, '@'))) { 01347 *tmp++ = '\0'; 01348 gw = tmp; 01349 } else 01350 goto error; 01351 01352 ast_mutex_lock(&gatelock); 01353 g = gateways; 01354 while (g) { 01355 if (strcasecmp(g->name, gw) == 0) { 01356 e = g->endpoints; 01357 break; 01358 } 01359 g = g->next; 01360 } 01361 01362 if (!e) 01363 goto error; 01364 01365 while (e) { 01366 if (strcasecmp(e->name, endpt) == 0) 01367 break; 01368 e = e->next; 01369 } 01370 01371 if (!e) 01372 goto error; 01373 01374 /* 01375 * As long as the gateway/endpoint is valid, we'll 01376 * assume that the device is available and its state 01377 * can be tracked. 01378 */ 01379 ret = AST_DEVICE_UNKNOWN; 01380 01381 error: 01382 ast_mutex_unlock(&gatelock); 01383 return ret; 01384 }
static int mgcp_do_debug | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1125 of file chan_mgcp.c.
References ast_cli(), mgcpdebug, RESULT_SHOWUSAGE, and RESULT_SUCCESS.
01126 { 01127 if (argc != 3) 01128 return RESULT_SHOWUSAGE; 01129 mgcpdebug = 1; 01130 ast_cli(fd, "MGCP Debugging Enabled\n"); 01131 return RESULT_SUCCESS; 01132 }
static int mgcp_do_reload | ( | void | ) | [static] |
mgcp_do_reload: Reload module
Definition at line 4333 of file chan_mgcp.c.
References reload_config().
Referenced by do_monitor().
04334 { 04335 reload_config(); 04336 return 0; 04337 }
static int mgcp_fixup | ( | struct ast_channel * | oldchan, | |
struct ast_channel * | newchan | |||
) | [static] |
Definition at line 1265 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.
01266 { 01267 struct mgcp_subchannel *sub = newchan->tech_pvt; 01268 01269 ast_mutex_lock(&sub->lock); 01270 ast_log(LOG_NOTICE, "mgcp_fixup(%s, %s)\n", oldchan->name, newchan->name); 01271 if (sub->owner != oldchan) { 01272 ast_mutex_unlock(&sub->lock); 01273 ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n", oldchan, sub->owner); 01274 return -1; 01275 } 01276 sub->owner = newchan; 01277 ast_mutex_unlock(&sub->lock); 01278 return 0; 01279 }
static enum ast_rtp_get_result mgcp_get_rtp_peer | ( | struct ast_channel * | chan, | |
struct ast_rtp ** | rtp | |||
) | [static] |
Definition at line 3989 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.
03990 { 03991 struct mgcp_subchannel *sub = NULL; 03992 03993 if (!(sub = chan->tech_pvt) || !(sub->rtp)) 03994 return AST_RTP_GET_FAILED; 03995 03996 *rtp = sub->rtp; 03997 03998 if (sub->parent->canreinvite) 03999 return AST_RTP_TRY_NATIVE; 04000 else 04001 return AST_RTP_TRY_PARTIAL; 04002 }
static int mgcp_hangup | ( | struct ast_channel * | ast | ) | [static] |
Definition at line 917 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, mgcpdebug, 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.
00918 { 00919 struct mgcp_subchannel *sub = ast->tech_pvt; 00920 struct mgcp_endpoint *p = sub->parent; 00921 00922 if (option_debug) { 00923 ast_log(LOG_DEBUG, "mgcp_hangup(%s)\n", ast->name); 00924 } 00925 if (!ast->tech_pvt) { 00926 ast_log(LOG_DEBUG, "Asked to hangup channel not connected\n"); 00927 return 0; 00928 } 00929 if (strcmp(sub->magic, MGCP_SUBCHANNEL_MAGIC)) { 00930 ast_log(LOG_DEBUG, "Invalid magic. MGCP subchannel freed up already.\n"); 00931 return 0; 00932 } 00933 ast_mutex_lock(&sub->lock); 00934 if (mgcpdebug) { 00935 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_hangup(%s) on %s@%s\n", ast->name, p->name, p->parent->name); 00936 } 00937 00938 if ((p->dtmfmode & MGCP_DTMF_INBAND) && p->dsp) { 00939 /* check whether other channel is active. */ 00940 if (!sub->next->owner) { 00941 if (p->dtmfmode & MGCP_DTMF_HYBRID) 00942 p->dtmfmode &= ~MGCP_DTMF_INBAND; 00943 if (mgcpdebug) { 00944 ast_verbose(VERBOSE_PREFIX_2 "MGCP free dsp on %s@%s\n", p->name, p->parent->name); 00945 } 00946 ast_dsp_free(p->dsp); 00947 p->dsp = NULL; 00948 } 00949 } 00950 00951 sub->owner = NULL; 00952 if (!ast_strlen_zero(sub->cxident)) { 00953 transmit_connection_del(sub); 00954 } 00955 sub->cxident[0] = '\0'; 00956 if ((sub == p->sub) && sub->next->owner) { 00957 if (p->hookstate == MGCP_OFFHOOK) { 00958 if (sub->next->owner && ast_bridged_channel(sub->next->owner)) { 00959 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); 00960 } 00961 } else { 00962 /* set our other connection as the primary and swith over to it */ 00963 p->sub = sub->next; 00964 p->sub->cxmode = MGCP_CX_RECVONLY; 00965 transmit_modify_request(p->sub); 00966 if (sub->next->owner && ast_bridged_channel(sub->next->owner)) { 00967 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); 00968 } 00969 } 00970 00971 } else if ((sub == p->sub->next) && p->hookstate == MGCP_OFFHOOK) { 00972 transmit_notify_request(sub, "L/v"); 00973 } else if (p->hookstate == MGCP_OFFHOOK) { 00974 transmit_notify_request(sub, "L/ro"); 00975 } else { 00976 transmit_notify_request(sub, ""); 00977 } 00978 00979 ast->tech_pvt = NULL; 00980 sub->alreadygone = 0; 00981 sub->outgoing = 0; 00982 sub->cxmode = MGCP_CX_INACTIVE; 00983 sub->callid[0] = '\0'; 00984 if (p) { 00985 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 00986 } 00987 /* Reset temporary destination */ 00988 memset(&sub->tmpdest, 0, sizeof(sub->tmpdest)); 00989 if (sub->rtp) { 00990 ast_rtp_destroy(sub->rtp); 00991 sub->rtp = NULL; 00992 } 00993 00994 ast_module_unref(ast_module_info->self); 00995 00996 if ((p->hookstate == MGCP_ONHOOK) && (!sub->next->rtp)) { 00997 p->hidecallerid = 0; 00998 if (p->hascallwaiting && !p->callwaiting) { 00999 if (option_verbose > 2) 01000 ast_verbose(VERBOSE_PREFIX_3 "Enabling call waiting on %s\n", ast->name); 01001 p->callwaiting = -1; 01002 } 01003 if (has_voicemail(p)) { 01004 if (mgcpdebug) { 01005 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_hangup(%s) on %s@%s set vmwi(+)\n", 01006 ast->name, p->name, p->parent->name); 01007 } 01008 transmit_notify_request(sub, "L/vmwi(+)"); 01009 } else { 01010 if (mgcpdebug) { 01011 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_hangup(%s) on %s@%s set vmwi(-)\n", 01012 ast->name, p->name, p->parent->name); 01013 } 01014 transmit_notify_request(sub, "L/vmwi(-)"); 01015 } 01016 } 01017 ast_mutex_unlock(&sub->lock); 01018 return 0; 01019 }
static int mgcp_indicate | ( | struct ast_channel * | ast, | |
int | ind, | |||
const void * | data, | |||
size_t | datalen | |||
) | [static] |
Definition at line 1418 of file chan_mgcp.c.
References AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_HOLD, AST_CONTROL_RINGING, AST_CONTROL_SRCUPDATE, AST_CONTROL_UNHOLD, ast_log(), ast_moh_start(), ast_moh_stop(), ast_mutex_lock(), ast_mutex_unlock(), ast_rtp_new_source(), ast_verbose(), control2str(), mgcp_subchannel::lock, LOG_WARNING, mgcpdebug, ast_channel::tech_pvt, transmit_notify_request(), and VERBOSE_PREFIX_3.
01419 { 01420 struct mgcp_subchannel *sub = ast->tech_pvt; 01421 int res = 0; 01422 01423 if (mgcpdebug) { 01424 ast_verbose(VERBOSE_PREFIX_3 "MGCP asked to indicate %d '%s' condition on channel %s\n", 01425 ind, control2str(ind), ast->name); 01426 } 01427 ast_mutex_lock(&sub->lock); 01428 switch(ind) { 01429 case AST_CONTROL_RINGING: 01430 #ifdef DLINK_BUGGY_FIRMWARE 01431 transmit_notify_request(sub, "rt"); 01432 #else 01433 transmit_notify_request(sub, "G/rt"); 01434 #endif 01435 break; 01436 case AST_CONTROL_BUSY: 01437 transmit_notify_request(sub, "L/bz"); 01438 break; 01439 case AST_CONTROL_CONGESTION: 01440 transmit_notify_request(sub, "G/cg"); 01441 break; 01442 case AST_CONTROL_HOLD: 01443 ast_moh_start(ast, data, NULL); 01444 break; 01445 case AST_CONTROL_UNHOLD: 01446 ast_moh_stop(ast); 01447 break; 01448 case AST_CONTROL_SRCUPDATE: 01449 ast_rtp_new_source(sub->rtp); 01450 break; 01451 case -1: 01452 transmit_notify_request(sub, ""); 01453 break; 01454 default: 01455 ast_log(LOG_WARNING, "Don't know how to indicate condition %d\n", ind); 01456 res = -1; 01457 } 01458 ast_mutex_unlock(&sub->lock); 01459 return res; 01460 }
static struct ast_channel* mgcp_new | ( | struct mgcp_subchannel * | sub, | |
int | state | |||
) | [static] |
Definition at line 1462 of file chan_mgcp.c.
References accountcode, 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, capability, 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, language, mgcp_endpoint::language, LOG_WARNING, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, mgcp_tech, 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, mgcp_endpoint::sub, ast_channel::tech, ast_channel::tech_pvt, VERBOSE_PREFIX_3, and ast_channel::writeformat.
Referenced by handle_hd_hf(), and mgcp_request().
01463 { 01464 struct ast_channel *tmp; 01465 struct mgcp_endpoint *i = sub->parent; 01466 int fmt; 01467 01468 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); 01469 if (tmp) { 01470 tmp->tech = &mgcp_tech; 01471 tmp->nativeformats = i->capability; 01472 if (!tmp->nativeformats) 01473 tmp->nativeformats = capability; 01474 fmt = ast_best_codec(tmp->nativeformats); 01475 ast_string_field_build(tmp, name, "MGCP/%s@%s-%d", i->name, i->parent->name, sub->id); 01476 if (sub->rtp) 01477 tmp->fds[0] = ast_rtp_fd(sub->rtp); 01478 if (i->dtmfmode & (MGCP_DTMF_INBAND | MGCP_DTMF_HYBRID)) { 01479 i->dsp = ast_dsp_new(); 01480 ast_dsp_set_features(i->dsp,DSP_FEATURE_DTMF_DETECT); 01481 /* this is to prevent clipping of dtmf tones during dsp processing */ 01482 ast_dsp_digitmode(i->dsp, DSP_DIGITMODE_NOQUELCH); 01483 } else { 01484 i->dsp = NULL; 01485 } 01486 if (state == AST_STATE_RING) 01487 tmp->rings = 1; 01488 tmp->writeformat = fmt; 01489 tmp->rawwriteformat = fmt; 01490 tmp->readformat = fmt; 01491 tmp->rawreadformat = fmt; 01492 tmp->tech_pvt = sub; 01493 if (!ast_strlen_zero(i->language)) 01494 ast_string_field_set(tmp, language, i->language); 01495 if (!ast_strlen_zero(i->accountcode)) 01496 ast_string_field_set(tmp, accountcode, i->accountcode); 01497 if (i->amaflags) 01498 tmp->amaflags = i->amaflags; 01499 sub->owner = tmp; 01500 ast_module_ref(ast_module_info->self); 01501 tmp->callgroup = i->callgroup; 01502 tmp->pickupgroup = i->pickupgroup; 01503 ast_string_field_set(tmp, call_forward, i->call_forward); 01504 ast_copy_string(tmp->context, i->context, sizeof(tmp->context)); 01505 ast_copy_string(tmp->exten, i->exten, sizeof(tmp->exten)); 01506 01507 /* Don't use ast_set_callerid() here because it will 01508 * generate a needless NewCallerID event */ 01509 tmp->cid.cid_ani = ast_strdup(i->cid_num); 01510 01511 if (!i->adsi) 01512 tmp->adsicpe = AST_ADSI_UNAVAILABLE; 01513 tmp->priority = 1; 01514 if (sub->rtp) 01515 ast_jb_configure(tmp, &global_jbconf); 01516 if (state != AST_STATE_DOWN) { 01517 if (ast_pbx_start(tmp)) { 01518 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); 01519 ast_hangup(tmp); 01520 tmp = NULL; 01521 } 01522 } 01523 /* verbose level check */ 01524 if (option_verbose > 2) { 01525 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_new(%s) created in state: %s\n", 01526 tmp->name, ast_state2str(state)); 01527 } 01528 } else { 01529 ast_log(LOG_WARNING, "Unable to allocate channel structure\n"); 01530 } 01531 return tmp; 01532 }
static int mgcp_no_debug | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1134 of file chan_mgcp.c.
References ast_cli(), mgcpdebug, RESULT_SHOWUSAGE, and RESULT_SUCCESS.
01135 { 01136 if (argc != 4) 01137 return RESULT_SHOWUSAGE; 01138 mgcpdebug = 0; 01139 ast_cli(fd, "MGCP Debugging Disabled\n"); 01140 return RESULT_SUCCESS; 01141 }
static int mgcp_postrequest | ( | struct mgcp_endpoint * | p, | |
struct mgcp_subchannel * | sub, | |||
char * | data, | |||
int | len, | |||
unsigned int | seqno | |||
) | [static] |
Definition at line 673 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().
00675 { 00676 struct mgcp_message *msg = malloc(sizeof(struct mgcp_message) + len); 00677 struct mgcp_message *cur; 00678 struct mgcp_gateway *gw = ((p && p->parent) ? p->parent : NULL); 00679 struct timeval tv; 00680 00681 if (!msg) { 00682 return -1; 00683 } 00684 if (!gw) { 00685 return -1; 00686 } 00687 /* SC 00688 time(&t); 00689 if (gw->messagepending && (gw->lastouttime + 20 < t)) { 00690 ast_log(LOG_NOTICE, "Timeout waiting for response to message:%d, lastouttime: %ld, now: %ld. Dumping pending queue\n", 00691 gw->msgs ? gw->msgs->seqno : -1, (long) gw->lastouttime, (long) t); 00692 dump_queue(sub->parent); 00693 } 00694 */ 00695 msg->owner_sub = sub; 00696 msg->owner_ep = p; 00697 msg->seqno = seqno; 00698 msg->next = NULL; 00699 msg->len = len; 00700 msg->retrans = 0; 00701 memcpy(msg->buf, data, msg->len); 00702 00703 ast_mutex_lock(&gw->msgs_lock); 00704 cur = gw->msgs; 00705 if (cur) { 00706 while(cur->next) 00707 cur = cur->next; 00708 cur->next = msg; 00709 } else { 00710 gw->msgs = msg; 00711 } 00712 00713 if (gettimeofday(&tv, NULL) < 0) { 00714 /* This shouldn't ever happen, but let's be sure */ 00715 ast_log(LOG_NOTICE, "gettimeofday() failed!\n"); 00716 } else { 00717 msg->expire = tv.tv_sec * 1000 + tv.tv_usec / 1000 + DEFAULT_RETRANS; 00718 00719 if (gw->retransid == -1) 00720 gw->retransid = ast_sched_add(sched, DEFAULT_RETRANS, retrans_pkt, (void *)gw); 00721 } 00722 ast_mutex_unlock(&gw->msgs_lock); 00723 /* SC 00724 if (!gw->messagepending) { 00725 gw->messagepending = 1; 00726 gw->lastout = seqno; 00727 gw->lastouttime = t; 00728 */ 00729 __mgcp_xmit(gw, msg->buf, msg->len); 00730 /* XXX Should schedule retransmission XXX */ 00731 /* SC 00732 } else 00733 ast_log(LOG_DEBUG, "Deferring transmission of transaction %d\n", seqno); 00734 */ 00735 return 0; 00736 }
static void mgcp_queue_control | ( | struct mgcp_subchannel * | sub, | |
int | control | |||
) | [static] |
Definition at line 604 of file chan_mgcp.c.
References AST_FRAME_CONTROL, f, and mgcp_queue_frame().
Referenced by handle_hd_hf().
00605 { 00606 struct ast_frame f = { AST_FRAME_CONTROL, }; 00607 f.subclass = control; 00608 return mgcp_queue_frame(sub, &f); 00609 }
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_lock(), ast_mutex_trylock(), ast_mutex_unlock(), ast_queue_frame(), f, 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 ast_mutex_unlock(&sub->lock); 00578 usleep(1); 00579 ast_mutex_lock(&sub->lock); 00580 } 00581 } else 00582 break; 00583 } 00584 }
static void mgcp_queue_hangup | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 586 of file chan_mgcp.c.
References ast_mutex_lock(), ast_mutex_trylock(), ast_mutex_unlock(), ast_queue_hangup(), mgcp_subchannel::lock, ast_channel::lock, and mgcp_subchannel::owner.
Referenced by attempt_transfer(), handle_request(), and handle_response().
00587 { 00588 for(;;) { 00589 if (sub->owner) { 00590 if (!ast_mutex_trylock(&sub->owner->lock)) { 00591 ast_queue_hangup(sub->owner); 00592 ast_mutex_unlock(&sub->owner->lock); 00593 break; 00594 } else { 00595 ast_mutex_unlock(&sub->lock); 00596 usleep(1); 00597 ast_mutex_lock(&sub->lock); 00598 } 00599 } else 00600 break; 00601 } 00602 }
static struct ast_frame * mgcp_read | ( | struct ast_channel * | ast | ) | [static] |
Definition at line 1225 of file chan_mgcp.c.
References ast_mutex_lock(), ast_mutex_unlock(), f, mgcp_subchannel::lock, mgcp_rtp_read(), and ast_channel::tech_pvt.
01226 { 01227 struct ast_frame *f; 01228 struct mgcp_subchannel *sub = ast->tech_pvt; 01229 ast_mutex_lock(&sub->lock); 01230 f = mgcp_rtp_read(sub); 01231 ast_mutex_unlock(&sub->lock); 01232 return f; 01233 }
static int mgcp_reload | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 4339 of file chan_mgcp.c.
References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_verbose(), LOG_WARNING, mgcp_reloading, and restart_monitor().
Referenced by reload(), and unload_module().
04340 { 04341 static int deprecated = 0; 04342 if (!deprecated && argc > 0) { 04343 ast_log(LOG_WARNING, "'mgcp reload' is deprecated. Please use 'reload chan_mgcp.so' instead.\n"); 04344 deprecated = 1; 04345 } 04346 04347 ast_mutex_lock(&mgcp_reload_lock); 04348 if (mgcp_reloading) { 04349 ast_verbose("Previous mgcp reload not yet done\n"); 04350 } else 04351 mgcp_reloading = 1; 04352 ast_mutex_unlock(&mgcp_reload_lock); 04353 restart_monitor(); 04354 return 0; 04355 }
static struct ast_channel * mgcp_request | ( | const char * | type, | |
int | format, | |||
void * | data, | |||
int * | cause | |||
) | [static] |
Definition at line 3557 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, capability, 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.
03558 { 03559 int oldformat; 03560 struct mgcp_subchannel *sub; 03561 struct ast_channel *tmpc = NULL; 03562 char tmp[256]; 03563 char *dest = data; 03564 03565 oldformat = format; 03566 format &= capability; 03567 if (!format) { 03568 ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", format); 03569 return NULL; 03570 } 03571 ast_copy_string(tmp, dest, sizeof(tmp)); 03572 if (ast_strlen_zero(tmp)) { 03573 ast_log(LOG_NOTICE, "MGCP Channels require an endpoint\n"); 03574 return NULL; 03575 } 03576 sub = find_subchannel_and_lock(tmp, 0, NULL); 03577 if (!sub) { 03578 ast_log(LOG_WARNING, "Unable to find MGCP endpoint '%s'\n", tmp); 03579 *cause = AST_CAUSE_UNREGISTERED; 03580 return NULL; 03581 } 03582 03583 if (option_verbose > 2) { 03584 ast_verbose(VERBOSE_PREFIX_3 "MGCP mgcp_request(%s)\n", tmp); 03585 ast_verbose(VERBOSE_PREFIX_3 "MGCP cw: %d, dnd: %d, so: %d, sno: %d\n", 03586 sub->parent->callwaiting, sub->parent->dnd, sub->owner ? 1 : 0, sub->next->owner ? 1: 0); 03587 } 03588 /* Must be busy */ 03589 if (((sub->parent->callwaiting) && ((sub->owner) && (sub->next->owner))) || 03590 ((!sub->parent->callwaiting) && (sub->owner)) || 03591 (sub->parent->dnd && (ast_strlen_zero(sub->parent->call_forward)))) { 03592 if (sub->parent->hookstate == MGCP_ONHOOK) { 03593 if (has_voicemail(sub->parent)) { 03594 transmit_notify_request(sub,"L/vmwi(+)"); 03595 } else { 03596 transmit_notify_request(sub,"L/vmwi(-)"); 03597 } 03598 } 03599 *cause = AST_CAUSE_BUSY; 03600 ast_mutex_unlock(&sub->lock); 03601 return NULL; 03602 } 03603 tmpc = mgcp_new(sub->owner ? sub->next : sub, AST_STATE_DOWN); 03604 ast_mutex_unlock(&sub->lock); 03605 if (!tmpc) 03606 ast_log(LOG_WARNING, "Unable to make channel for '%s'\n", tmp); 03607 restart_monitor(); 03608 return tmpc; 03609 }
static struct ast_frame* mgcp_rtp_read | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 1194 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, 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, and ast_channel::writeformat.
Referenced by mgcp_read().
01195 { 01196 /* Retrieve audio/etc from channel. Assumes sub->lock is already held. */ 01197 struct ast_frame *f; 01198 01199 f = ast_rtp_read(sub->rtp); 01200 /* Don't send RFC2833 if we're not supposed to */ 01201 if (f && (f->frametype == AST_FRAME_DTMF) && !(sub->parent->dtmfmode & MGCP_DTMF_RFC2833)) 01202 return &ast_null_frame; 01203 if (sub->owner) { 01204 /* We already hold the channel lock */ 01205 if (f->frametype == AST_FRAME_VOICE) { 01206 if (f->subclass != sub->owner->nativeformats) { 01207 ast_log(LOG_DEBUG, "Oooh, format changed to %d\n", f->subclass); 01208 sub->owner->nativeformats = f->subclass; 01209 ast_set_read_format(sub->owner, sub->owner->readformat); 01210 ast_set_write_format(sub->owner, sub->owner->writeformat); 01211 } 01212 /* Courtesy fearnor aka alex@pilosoft.com */ 01213 if ((sub->parent->dtmfmode & MGCP_DTMF_INBAND) && (sub->parent->dsp)) { 01214 #if 0 01215 ast_log(LOG_NOTICE, "MGCP ast_dsp_process\n"); 01216 #endif 01217 f = ast_dsp_process(sub->owner, sub->parent->dsp, f); 01218 } 01219 } 01220 } 01221 return f; 01222 }
static int mgcp_senddigit_begin | ( | struct ast_channel * | ast, | |
char | digit | |||
) | [static] |
Definition at line 1281 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, mgcp_endpoint::sub, and ast_channel::tech_pvt.
01282 { 01283 struct mgcp_subchannel *sub = ast->tech_pvt; 01284 struct mgcp_endpoint *p = sub->parent; 01285 int res = 0; 01286 01287 ast_mutex_lock(&sub->lock); 01288 if (p->dtmfmode & MGCP_DTMF_INBAND || p->dtmfmode & MGCP_DTMF_HYBRID) { 01289 ast_log(LOG_DEBUG, "Sending DTMF using inband/hybrid\n"); 01290 res = -1; /* Let asterisk play inband indications */ 01291 } else if (p->dtmfmode & MGCP_DTMF_RFC2833) { 01292 ast_log(LOG_DEBUG, "Sending DTMF using RFC2833"); 01293 ast_rtp_senddigit_begin(sub->rtp, digit); 01294 } else { 01295 ast_log(LOG_ERROR, "Don't know about DTMF_MODE %d\n", p->dtmfmode); 01296 } 01297 ast_mutex_unlock(&sub->lock); 01298 01299 return res; 01300 }
static int mgcp_senddigit_end | ( | struct ast_channel * | ast, | |
char | digit, | |||
unsigned int | duration | |||
) | [static] |
Definition at line 1302 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, mgcp_endpoint::sub, ast_channel::tech_pvt, and transmit_notify_request().
01303 { 01304 struct mgcp_subchannel *sub = ast->tech_pvt; 01305 struct mgcp_endpoint *p = sub->parent; 01306 int res = 0; 01307 char tmp[4]; 01308 01309 ast_mutex_lock(&sub->lock); 01310 if (p->dtmfmode & MGCP_DTMF_INBAND || p->dtmfmode & MGCP_DTMF_HYBRID) { 01311 ast_log(LOG_DEBUG, "Stopping DTMF using inband/hybrid\n"); 01312 res = -1; /* Tell Asterisk to stop inband indications */ 01313 } else if (p->dtmfmode & MGCP_DTMF_RFC2833) { 01314 ast_log(LOG_DEBUG, "Stopping DTMF using RFC2833\n"); 01315 tmp[0] = 'D'; 01316 tmp[1] = '/'; 01317 tmp[2] = digit; 01318 tmp[3] = '\0'; 01319 transmit_notify_request(sub, tmp); 01320 ast_rtp_senddigit_end(sub->rtp, digit); 01321 } else { 01322 ast_log(LOG_ERROR, "Don't know about DTMF_MODE %d\n", p->dtmfmode); 01323 } 01324 ast_mutex_unlock(&sub->lock); 01325 01326 return res; 01327 }
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 4004 of file chan_mgcp.c.
References mgcp_subchannel::alreadygone, mgcp_subchannel::rtp, ast_channel::tech_pvt, and transmit_modify_with_sdp().
04005 { 04006 /* XXX Is there such thing as video support with MGCP? XXX */ 04007 struct mgcp_subchannel *sub; 04008 sub = chan->tech_pvt; 04009 if (sub && !sub->alreadygone) { 04010 transmit_modify_with_sdp(sub, rtp, codecs); 04011 return 0; 04012 } 04013 return -1; 04014 }
static int mgcp_show_endpoints | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 1021 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.
01022 { 01023 struct mgcp_gateway *g; 01024 struct mgcp_endpoint *e; 01025 int hasendpoints = 0; 01026 01027 if (argc != 3) 01028 return RESULT_SHOWUSAGE; 01029 ast_mutex_lock(&gatelock); 01030 g = gateways; 01031 while(g) { 01032 e = g->endpoints; 01033 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"); 01034 while(e) { 01035 /* Don't show wilcard endpoint */ 01036 if (strcmp(e->name, g->wcardep) !=0) 01037 ast_cli(fd, " -- '%s@%s in '%s' is %s\n", e->name, g->name, e->context, e->sub->owner ? "active" : "idle"); 01038 hasendpoints = 1; 01039 e = e->next; 01040 } 01041 if (!hasendpoints) { 01042 ast_cli(fd, " << No Endpoints Defined >> "); 01043 } 01044 g = g->next; 01045 } 01046 ast_mutex_unlock(&gatelock); 01047 return RESULT_SUCCESS; 01048 }
static void* mgcp_ss | ( | void * | data | ) | [static] |
Definition at line 2650 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, firstdigittimeout, gendigittimeout, mgcp_endpoint::hascallwaiting, mgcp_endpoint::hidecallerid, mgcp_endpoint::lastcallerid, len, LOG_DEBUG, LOG_WARNING, matchdigittimeout, MGCP_DTMF_HYBRID, MGCP_DTMF_INBAND, mgcp_subchannel::next, option_debug, option_verbose, mgcp_subchannel::owner, mgcp_subchannel::parent, ast_channel::rings, start_rtp(), mgcp_endpoint::sub, ast_channel::tech_pvt, timeout, transmit_notify_request(), and VERBOSE_PREFIX_3.
Referenced by handle_hd_hf().
02651 { 02652 struct ast_channel *chan = data; 02653 struct mgcp_subchannel *sub = chan->tech_pvt; 02654 struct mgcp_endpoint *p = sub->parent; 02655 /* char exten[AST_MAX_EXTENSION] = ""; */ 02656 int len = 0; 02657 int timeout = firstdigittimeout; 02658 int res= 0; 02659 int getforward = 0; 02660 int loop_pause = 100; 02661 02662 len = strlen(p->dtmf_buf); 02663 02664 while(len < AST_MAX_EXTENSION-1) { 02665 res = 1; /* Assume that we will get a digit */ 02666 while (strlen(p->dtmf_buf) == len){ 02667 ast_safe_sleep(chan, loop_pause); 02668 timeout -= loop_pause; 02669 if (timeout <= 0){ 02670 res = 0; 02671 break; 02672 } 02673 res = 1; 02674 } 02675 02676 timeout = 0; 02677 len = strlen(p->dtmf_buf); 02678 02679 if (!ast_ignore_pattern(chan->context, p->dtmf_buf)) { 02680 /*res = tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02681 ast_indicate(chan, -1); 02682 } else { 02683 /* XXX Redundant? We should already be playing dialtone */ 02684 /*tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALTONE);*/ 02685 transmit_notify_request(sub, "L/dl"); 02686 } 02687 if (ast_exists_extension(chan, chan->context, p->dtmf_buf, 1, p->cid_num)) { 02688 if (!res || !ast_matchmore_extension(chan, chan->context, p->dtmf_buf, 1, p->cid_num)) { 02689 if (getforward) { 02690 /* Record this as the forwarding extension */ 02691 ast_copy_string(p->call_forward, p->dtmf_buf, sizeof(p->call_forward)); 02692 if (option_verbose > 2) { 02693 ast_verbose(VERBOSE_PREFIX_3 "Setting call forward to '%s' on channel %s\n", 02694 p->call_forward, chan->name); 02695 } 02696 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02697 transmit_notify_request(sub, "L/sl"); 02698 if (res) 02699 break; 02700 usleep(500000); 02701 /*res = tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02702 ast_indicate(chan, -1); 02703 sleep(1); 02704 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02705 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALTONE);*/ 02706 transmit_notify_request(sub, "L/dl"); 02707 len = 0; 02708 getforward = 0; 02709 } else { 02710 /*res = tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02711 ast_indicate(chan, -1); 02712 ast_copy_string(chan->exten, p->dtmf_buf, sizeof(chan->exten)); 02713 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02714 ast_set_callerid(chan, 02715 p->hidecallerid ? "" : p->cid_num, 02716 p->hidecallerid ? "" : p->cid_name, 02717 chan->cid.cid_ani ? NULL : p->cid_num); 02718 ast_setstate(chan, AST_STATE_RING); 02719 /*zt_enable_ec(p);*/ 02720 if (p->dtmfmode & MGCP_DTMF_HYBRID) { 02721 p->dtmfmode |= MGCP_DTMF_INBAND; 02722 ast_indicate(chan, -1); 02723 } 02724 res = ast_pbx_run(chan); 02725 if (res) { 02726 ast_log(LOG_WARNING, "PBX exited non-zero\n"); 02727 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_CONGESTION);*/ 02728 /*transmit_notify_request(p, "nbz", 1);*/ 02729 transmit_notify_request(sub, "G/cg"); 02730 } 02731 return NULL; 02732 } 02733 } else { 02734 /* It's a match, but they just typed a digit, and there is an ambiguous match, 02735 so just set the timeout to matchdigittimeout and wait some more */ 02736 timeout = matchdigittimeout; 02737 } 02738 } else if (res == 0) { 02739 ast_log(LOG_DEBUG, "not enough digits (and no ambiguous match)...\n"); 02740 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_CONGESTION);*/ 02741 transmit_notify_request(sub, "G/cg"); 02742 /*zt_wait_event(p->subs[index].zfd);*/ 02743 ast_hangup(chan); 02744 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02745 return NULL; 02746 } else if (p->hascallwaiting && p->callwaiting && !strcmp(p->dtmf_buf, "*70")) { 02747 if (option_verbose > 2) { 02748 ast_verbose(VERBOSE_PREFIX_3 "Disabling call waiting on %s\n", chan->name); 02749 } 02750 /* Disable call waiting if enabled */ 02751 p->callwaiting = 0; 02752 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02753 transmit_notify_request(sub, "L/sl"); 02754 len = 0; 02755 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02756 timeout = firstdigittimeout; 02757 } else if (!strcmp(p->dtmf_buf,ast_pickup_ext())) { 02758 /* Scan all channels and see if any there 02759 * ringing channqels with that have call groups 02760 * that equal this channels pickup group 02761 */ 02762 if (ast_pickup_call(chan)) { 02763 ast_log(LOG_WARNING, "No call pickup possible...\n"); 02764 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_CONGESTION);*/ 02765 transmit_notify_request(sub, "G/cg"); 02766 } 02767 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02768 ast_hangup(chan); 02769 return NULL; 02770 } else if (!p->hidecallerid && !strcmp(p->dtmf_buf, "*67")) { 02771 if (option_verbose > 2) { 02772 ast_verbose(VERBOSE_PREFIX_3 "Disabling Caller*ID on %s\n", chan->name); 02773 } 02774 /* Disable Caller*ID if enabled */ 02775 p->hidecallerid = 1; 02776 ast_set_callerid(chan, "", "", NULL); 02777 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02778 transmit_notify_request(sub, "L/sl"); 02779 len = 0; 02780 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02781 timeout = firstdigittimeout; 02782 } else if (p->callreturn && !strcmp(p->dtmf_buf, "*69")) { 02783 res = 0; 02784 if (!ast_strlen_zero(p->lastcallerid)) { 02785 res = ast_say_digit_str(chan, p->lastcallerid, "", chan->language); 02786 } 02787 if (!res) 02788 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02789 transmit_notify_request(sub, "L/sl"); 02790 break; 02791 } else if (!strcmp(p->dtmf_buf, "*78")) { 02792 /* Do not disturb */ 02793 if (option_verbose > 2) { 02794 ast_verbose(VERBOSE_PREFIX_3 "Enabled DND on channel %s\n", chan->name); 02795 } 02796 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02797 transmit_notify_request(sub, "L/sl"); 02798 p->dnd = 1; 02799 getforward = 0; 02800 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02801 len = 0; 02802 } else if (!strcmp(p->dtmf_buf, "*79")) { 02803 /* Do not disturb */ 02804 if (option_verbose > 2) { 02805 ast_verbose(VERBOSE_PREFIX_3 "Disabled DND on channel %s\n", chan->name); 02806 } 02807 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02808 transmit_notify_request(sub, "L/sl"); 02809 p->dnd = 0; 02810 getforward = 0; 02811 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02812 len = 0; 02813 } else if (p->cancallforward && !strcmp(p->dtmf_buf, "*72")) { 02814 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02815 transmit_notify_request(sub, "L/sl"); 02816 getforward = 1; 02817 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02818 len = 0; 02819 } else if (p->cancallforward && !strcmp(p->dtmf_buf, "*73")) { 02820 if (option_verbose > 2) { 02821 ast_verbose(VERBOSE_PREFIX_3 "Cancelling call forwarding on channel %s\n", chan->name); 02822 } 02823 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02824 transmit_notify_request(sub, "L/sl"); 02825 memset(p->call_forward, 0, sizeof(p->call_forward)); 02826 getforward = 0; 02827 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02828 len = 0; 02829 } else if (!strcmp(p->dtmf_buf, ast_parking_ext()) && 02830 sub->next->owner && ast_bridged_channel(sub->next->owner)) { 02831 /* This is a three way call, the main call being a real channel, 02832 and we're parking the first call. */ 02833 ast_masq_park_call(ast_bridged_channel(sub->next->owner), chan, 0, NULL); 02834 if (option_verbose > 2) { 02835 ast_verbose(VERBOSE_PREFIX_3 "Parking call to '%s'\n", chan->name); 02836 } 02837 break; 02838 } else if (!ast_strlen_zero(p->lastcallerid) && !strcmp(p->dtmf_buf, "*60")) { 02839 if (option_verbose > 2) { 02840 ast_verbose(VERBOSE_PREFIX_3 "Blacklisting number %s\n", p->lastcallerid); 02841 } 02842 res = ast_db_put("blacklist", p->lastcallerid, "1"); 02843 if (!res) { 02844 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02845 transmit_notify_request(sub, "L/sl"); 02846 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02847 len = 0; 02848 } 02849 } else if (p->hidecallerid && !strcmp(p->dtmf_buf, "*82")) { 02850 if (option_verbose > 2) { 02851 ast_verbose(VERBOSE_PREFIX_3 "Enabling Caller*ID on %s\n", chan->name); 02852 } 02853 /* Enable Caller*ID if enabled */ 02854 p->hidecallerid = 0; 02855 ast_set_callerid(chan, p->cid_num, p->cid_name, NULL); 02856 /*res = tone_zone_play_tone(p->subs[index].zfd, ZT_TONE_DIALRECALL);*/ 02857 transmit_notify_request(sub, "L/sl"); 02858 len = 0; 02859 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02860 timeout = firstdigittimeout; 02861 } else if (!ast_canmatch_extension(chan, chan->context, p->dtmf_buf, 1, chan->cid.cid_num) && 02862 ((p->dtmf_buf[0] != '*') || (strlen(p->dtmf_buf) > 2))) { 02863 if (option_debug) 02864 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); 02865 break; 02866 } 02867 if (!timeout) 02868 timeout = gendigittimeout; 02869 if (len && !ast_ignore_pattern(chan->context, p->dtmf_buf)) 02870 /*tone_zone_play_tone(p->subs[index].zfd, -1);*/ 02871 ast_indicate(chan, -1); 02872 } 02873 #if 0 02874 for (;;) { 02875 res = ast_waitfordigit(chan, to); 02876 if (!res) { 02877 ast_log(LOG_DEBUG, "Timeout...\n"); 02878 break; 02879 } 02880 if (res < 0) { 02881 ast_log(LOG_DEBUG, "Got hangup...\n"); 02882 ast_hangup(chan); 02883 break; 02884 } 02885 exten[pos++] = res; 02886 if (!ast_ignore_pattern(chan->context, exten)) 02887 ast_indicate(chan, -1); 02888 if (ast_matchmore_extension(chan, chan->context, exten, 1, chan->callerid)) { 02889 if (ast_exists_extension(chan, chan->context, exten, 1, chan->callerid)) 02890 to = 3000; 02891 else 02892 to = 8000; 02893 } else 02894 break; 02895 } 02896 if (ast_exists_extension(chan, chan->context, exten, 1, chan->callerid)) { 02897 ast_copy_string(chan->exten, exten, sizeof(chan->exten)1); 02898 if (!p->rtp) { 02899 start_rtp(p); 02900 } 02901 ast_setstate(chan, AST_STATE_RING); 02902 chan->rings = 1; 02903 if (ast_pbx_run(chan)) { 02904 ast_log(LOG_WARNING, "Unable to launch PBX on %s\n", chan->name); 02905 } else { 02906 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02907 return NULL; 02908 } 02909 } 02910 #endif 02911 ast_hangup(chan); 02912 memset(p->dtmf_buf, 0, sizeof(p->dtmf_buf)); 02913 return NULL; 02914 }
static int mgcp_write | ( | struct ast_channel * | ast, | |
struct ast_frame * | frame | |||
) | [static] |
Definition at line 1235 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.
01236 { 01237 struct mgcp_subchannel *sub = ast->tech_pvt; 01238 int res = 0; 01239 if (frame->frametype != AST_FRAME_VOICE) { 01240 if (frame->frametype == AST_FRAME_IMAGE) 01241 return 0; 01242 else { 01243 ast_log(LOG_WARNING, "Can't send %d type frames with MGCP write\n", frame->frametype); 01244 return 0; 01245 } 01246 } else { 01247 if (!(frame->subclass & ast->nativeformats)) { 01248 ast_log(LOG_WARNING, "Asked to transmit frame type %d, while native formats is %d (read/write = %d/%d)\n", 01249 frame->subclass, ast->nativeformats, ast->readformat, ast->writeformat); 01250 return -1; 01251 } 01252 } 01253 if (sub) { 01254 ast_mutex_lock(&sub->lock); 01255 if ((sub->parent->sub == sub) || !sub->parent->singlepath) { 01256 if (sub->rtp) { 01257 res = ast_rtp_write(sub->rtp, frame); 01258 } 01259 } 01260 ast_mutex_unlock(&sub->lock); 01261 } 01262 return res; 01263 }
static int mgcpsock_read | ( | int * | id, | |
int | fd, | |||
short | events, | |||
void * | ignore | |||
) | [static] |
Definition at line 3353 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(), errno, find_and_retrans(), find_subchannel_and_lock(), free, handle_request(), handle_response(), len, mgcp_subchannel::lock, LOG_DEBUG, LOG_NOTICE, LOG_WARNING, mgcpsock, 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(), result, mgcp_gateway::retransid, and mgcp_message::seqno.
Referenced by do_monitor().
03354 { 03355 struct mgcp_request req; 03356 struct sockaddr_in sin; 03357 struct mgcp_subchannel *sub; 03358 int res; 03359 socklen_t len; 03360 int result; 03361 int ident; 03362 len = sizeof(sin); 03363 memset(&req, 0, sizeof(req)); 03364 res = recvfrom(mgcpsock, req.data, sizeof(req.data) - 1, 0, (struct sockaddr *)&sin, &len); 03365 if (res < 0) { 03366 if (errno != ECONNREFUSED) 03367 ast_log(LOG_WARNING, "Recv error: %s\n", strerror(errno)); 03368 return 1; 03369 } 03370 req.data[res] = '\0'; 03371 req.len = res; 03372 if (mgcpdebug) { 03373 ast_verbose("MGCP read: \n%s\nfrom %s:%d\n", req.data, ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port)); 03374 } 03375 parse(&req); 03376 if (req.headers < 1) { 03377 /* Must have at least one header */ 03378 return 1; 03379 } 03380 if (ast_strlen_zero(req.identifier)) { 03381 ast_log(LOG_NOTICE, "Message from %s missing identifier\n", ast_inet_ntoa(sin.sin_addr)); 03382 return 1; 03383 } 03384 03385 if (sscanf(req.verb, "%d", &result) && sscanf(req.identifier, "%d", &ident)) { 03386 /* Try to find who this message is for, if it's important */ 03387 sub = find_subchannel_and_lock(NULL, ident, &sin); 03388 if (sub) { 03389 struct mgcp_gateway *gw = sub->parent->parent; 03390 struct mgcp_message *cur, *prev; 03391 03392 ast_mutex_unlock(&sub->lock); 03393 ast_mutex_lock(&gw->msgs_lock); 03394 for (prev = NULL, cur = gw->msgs; cur; prev = cur, cur = cur->next) { 03395 if (cur->seqno == ident) { 03396 ast_log(LOG_DEBUG, "Got response back on transaction %d\n", ident); 03397 if (prev) 03398 prev->next = cur->next; 03399 else 03400 gw->msgs = cur->next; 03401 break; 03402 } 03403 } 03404 03405 /* stop retrans timer if the queue is empty */ 03406 if (!gw->msgs) { 03407 AST_SCHED_DEL(sched, gw->retransid); 03408 } 03409 03410 ast_mutex_unlock(&gw->msgs_lock); 03411 if (cur) { 03412 handle_response(cur->owner_ep, cur->owner_sub, result, ident, &req); 03413 free(cur); 03414 return 1; 03415 } 03416 03417 ast_log(LOG_NOTICE, "Got response back on [%s] for transaction %d we aren't sending?\n", 03418 gw->name, ident); 03419 } 03420 } else { 03421 if (ast_strlen_zero(req.endpoint) || 03422 ast_strlen_zero(req.version) || 03423 ast_strlen_zero(req.verb)) { 03424 ast_log(LOG_NOTICE, "Message must have a verb, an idenitifier, version, and endpoint\n"); 03425 return 1; 03426 } 03427 /* Process request, with iflock held */ 03428 sub = find_subchannel_and_lock(req.endpoint, 0, &sin); 03429 if (sub) { 03430 /* look first to find a matching response in the queue */ 03431 if (!find_and_retrans(sub, &req)) 03432 /* pass the request off to the currently mastering subchannel */ 03433 handle_request(sub, &req, &sin); 03434 ast_mutex_unlock(&sub->lock); 03435 } 03436 } 03437 return 1; 03438 }
static void parse | ( | struct mgcp_request * | req | ) | [static] |
Definition at line 1736 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, mgcpdebug, 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().
01737 { 01738 /* Divide fields by NULL's */ 01739 char *c; 01740 int f = 0; 01741 c = req->data; 01742 01743 /* First header starts immediately */ 01744 req->header[f] = c; 01745 while(*c) { 01746 if (*c == '\n') { 01747 /* We've got a new header */ 01748 *c = 0; 01749 #if 0 01750 printf("Header: %s (%d)\n", req->header[f], strlen(req->header[f])); 01751 #endif 01752 if (ast_strlen_zero(req->header[f])) { 01753 /* Line by itself means we're now in content */ 01754 c++; 01755 break; 01756 } 01757 if (f >= MGCP_MAX_HEADERS - 1) { 01758 ast_log(LOG_WARNING, "Too many MGCP headers...\n"); 01759 } else 01760 f++; 01761 req->header[f] = c + 1; 01762 } else if (*c == '\r') { 01763 /* Ignore but eliminate \r's */ 01764 *c = 0; 01765 } 01766 c++; 01767 } 01768 /* Check for last header */ 01769 if (!ast_strlen_zero(req->header[f])) 01770 f++; 01771 req->headers = f; 01772 /* Now we process any mime content */ 01773 f = 0; 01774 req->line[f] = c; 01775 while(*c) { 01776 if (*c == '\n') { 01777 /* We've got a new line */ 01778 *c = 0; 01779 #if 0 01780 printf("Line: %s (%d)\n", req->line[f], strlen(req->line[f])); 01781 #endif 01782 if (f >= MGCP_MAX_LINES - 1) { 01783 ast_log(LOG_WARNING, "Too many SDP lines...\n"); 01784 } else 01785 f++; 01786 req->line[f] = c + 1; 01787 } else if (*c == '\r') { 01788 /* Ignore and eliminate \r's */ 01789 *c = 0; 01790 } 01791 c++; 01792 } 01793 /* Check for last line */ 01794 if (!ast_strlen_zero(req->line[f])) 01795 f++; 01796 req->lines = f; 01797 /* Parse up the initial header */ 01798 c = req->header[0]; 01799 while(*c && *c < 33) c++; 01800 /* First the verb */ 01801 req->verb = c; 01802 while(*c && (*c > 32)) c++; 01803 if (*c) { 01804 *c = '\0'; 01805 c++; 01806 while(*c && (*c < 33)) c++; 01807 req->identifier = c; 01808 while(*c && (*c > 32)) c++; 01809 if (*c) { 01810 *c = '\0'; 01811 c++; 01812 while(*c && (*c < 33)) c++; 01813 req->endpoint = c; 01814 while(*c && (*c > 32)) c++; 01815 if (*c) { 01816 *c = '\0'; 01817 c++; 01818 while(*c && (*c < 33)) c++; 01819 req->version = c; 01820 while(*c && (*c > 32)) c++; 01821 while(*c && (*c < 33)) c++; 01822 while(*c && (*c > 32)) c++; 01823 *c = '\0'; 01824 } 01825 } 01826 } 01827 01828 if (mgcpdebug) { 01829 ast_verbose("Verb: '%s', Identifier: '%s', Endpoint: '%s', Version: '%s'\n", 01830 req->verb, req->identifier, req->endpoint, req->version); 01831 ast_verbose("%d headers, %d lines\n", req->headers, req->lines); 01832 } 01833 if (*c) 01834 ast_log(LOG_WARNING, "Odd content, extra stuff left over ('%s')\n", c); 01835 }
static int process_sdp | ( | struct mgcp_subchannel * | sub, | |
struct mgcp_request * | req | |||
) | [static] |
Definition at line 1837 of file chan_mgcp.c.
References ahp, 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(), capability, mgcp_endpoint::capability, get_sdp(), get_sdp_iterate(), hp, len, LOG_WARNING, mgcpdebug, mgcp_endpoint::nonCodecCapability, nonCodecCapability, mgcp_subchannel::parent, portno, mgcp_subchannel::rtp, sdpLineNum_iterator_init(), and mgcp_endpoint::sub.
Referenced by handle_request(), handle_request_invite(), handle_response(), and handle_response_invite().
01838 { 01839 char *m; 01840 char *c; 01841 char *a; 01842 char host[258]; 01843 int len; 01844 int portno; 01845 int peercapability, peerNonCodecCapability; 01846 struct sockaddr_in sin; 01847 char *codecs; 01848 struct ast_hostent ahp; struct hostent *hp; 01849 int codec, codec_count=0; 01850 int iterator; 01851 struct mgcp_endpoint *p = sub->parent; 01852 01853 /* Get codec and RTP info from SDP */ 01854 m = get_sdp(req, "m"); 01855 c = get_sdp(req, "c"); 01856 if (ast_strlen_zero(m) || ast_strlen_zero(c)) { 01857 ast_log(LOG_WARNING, "Insufficient information for SDP (m = '%s', c = '%s')\n", m, c); 01858 return -1; 01859 } 01860 if (sscanf(c, "IN IP4 %256s", host) != 1) { 01861 ast_log(LOG_WARNING, "Invalid host in c= line, '%s'\n", c); 01862 return -1; 01863 } 01864 /* XXX This could block for a long time, and block the main thread! XXX */ 01865 hp = ast_gethostbyname(host, &ahp); 01866 if (!hp) { 01867 ast_log(LOG_WARNING, "Unable to lookup host in c= line, '%s'\n", c); 01868 return -1; 01869 } 01870 if (sscanf(m, "audio %d RTP/AVP %n", &portno, &len) != 1) { 01871 ast_log(LOG_WARNING, "Unable to determine port number for RTP in '%s'\n", m); 01872 return -1; 01873 } 01874 sin.sin_family = AF_INET; 01875 memcpy(&sin.sin_addr, hp->h_addr, sizeof(sin.sin_addr)); 01876 sin.sin_port = htons(portno); 01877 ast_rtp_set_peer(sub->rtp, &sin); 01878 #if 0 01879 printf("Peer RTP is at port %s:%d\n", ast_inet_ntoa(sin.sin_addr), ntohs(sin.sin_port)); 01880 #endif 01881 /* Scan through the RTP payload types specified in a "m=" line: */ 01882 ast_rtp_pt_clear(sub->rtp); 01883 codecs = ast_strdupa(m + len); 01884 while (!ast_strlen_zero(codecs)) { 01885 if (sscanf(codecs, "%d%n", &codec, &len) != 1) { 01886 if (codec_count) 01887 break; 01888 ast_log(LOG_WARNING, "Error in codec string '%s' at '%s'\n", m, codecs); 01889 return -1; 01890 } 01891 ast_rtp_set_m_type(sub->rtp, codec); 01892 codec_count++; 01893 codecs += len; 01894 } 01895 01896 /* Next, scan through each "a=rtpmap:" line, noting each */ 01897 /* specified RTP payload type (with corresponding MIME subtype): */ 01898 sdpLineNum_iterator_init(&iterator); 01899 while ((a = get_sdp_iterate(&iterator, req, "a"))[0] != '\0') { 01900 char* mimeSubtype = ast_strdupa(a); /* ensures we have enough space */ 01901 if (sscanf(a, "rtpmap: %u %[^/]/", &codec, mimeSubtype) != 2) 01902 continue; 01903 /* Note: should really look at the 'freq' and '#chans' params too */ 01904 ast_rtp_set_rtpmap_type(sub->rtp, codec, "audio", mimeSubtype, 0); 01905 } 01906 01907 /* Now gather all of the codecs that were asked for: */ 01908 ast_rtp_get_current_formats(sub->rtp, &peercapability, &peerNonCodecCapability); 01909 p->capability = capability & peercapability; 01910 if (mgcpdebug) { 01911 ast_verbose("Capabilities: us - %d, them - %d, combined - %d\n", 01912 capability, peercapability, p->capability); 01913 ast_verbose("Non-codec capabilities: us - %d, them - %d, combined - %d\n", 01914 nonCodecCapability, peerNonCodecCapability, p->nonCodecCapability); 01915 } 01916 if (!p->capability) { 01917 ast_log(LOG_WARNING, "No compatible codecs!\n"); 01918 return -1; 01919 } 01920 return 0; 01921 }
static void prune_gateways | ( | void | ) | [static] |
Definition at line 4074 of file chan_mgcp.c.
References ast_mutex_lock(), mgcp_gateway::delme, mgcp_endpoint::delme, destroy_endpoint(), mgcp_gateway::endpoints, gateways, mgcp_endpoint::next, and t.
Referenced by reload_config(), and unload_module().
04075 { 04076 struct mgcp_gateway *g, *z, *r; 04077 struct mgcp_endpoint *e, *p, *t; 04078 04079 ast_mutex_lock(&gatelock); 04080 04081 /* prune gateways */ 04082 for (z = NULL, g = gateways; g;) { 04083 /* prune endpoints */ 04084 for (p = NULL, e = g->endpoints; e; ) { 04085 if (e->delme || g->delme) { 04086 t = e; 04087 e = e->next; 04088 if (!p) 04089 g->endpoints = e; 04090 else 04091 p->next = e; 04092 destroy_endpoint(t); 04093 } else { 04094 p = e; 04095 e = e->next; 04096 } 04097 } 04098 04099 if (g->delme) { 04100 r = g; 04101 g = g->next; 04102 if (!z) 04103 gateways = g; 04104 else 04105 z->next = g; 04106 04107 destroy_gateway(r); 04108 } else { 04109 z = g; 04110 g = g->next; 04111 } 04112 } 04113 04114 ast_mutex_unlock(&gatelock); 04115 }
static int reload | ( | void | ) | [static] |
Definition at line 4357 of file chan_mgcp.c.
References mgcp_reload().
04358 { 04359 mgcp_reload(0, 0, NULL); 04360 return 0; 04361 }
static int reload_config | ( | void | ) | [static] |
Definition at line 4117 of file chan_mgcp.c.
References __ourip, ahp, 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(), capability, config, default_jbconf, DEFAULT_MGCP_CA_PORT, mgcp_endpoint::delme, mgcp_gateway::delme, dtmfmode, mgcp_gateway::endpoints, errno, format, gateways, global_jbconf, hp, io, IPTOS_MINCOST, ast_variable::lineno, LOG_NOTICE, LOG_WARNING, mgcpsock, mgcpsock_read_id, monitor_thread, mgcp_endpoint::name, mgcp_gateway::name, ast_variable::name, mgcp_endpoint::needaudit, mgcp_gateway::next, mgcp_endpoint::next, ast_variable::next, option_verbose, ourhost, ourport, prune_gateways(), tos, transmit_audit_endpoint(), ast_variable::value, VERBOSE_PREFIX_2, and VERBOSE_PREFIX_3.
04118 { 04119 struct ast_config *cfg; 04120 struct ast_variable *v; 04121 struct mgcp_gateway *g; 04122 struct mgcp_endpoint *e; 04123 char *cat; 04124 struct ast_hostent ahp; 04125 struct hostent *hp; 04126 int format; 04127 04128 if (gethostname(ourhost, sizeof(ourhost)-1)) { 04129 ast_log(LOG_WARNING, "Unable to get hostname, MGCP disabled\n"); 04130 return 0; 04131 } 04132 cfg = ast_config_load(config); 04133 04134 /* We *must* have a config file otherwise stop immediately */ 04135 if (!cfg) { 04136 ast_log(LOG_NOTICE, "Unable to load config %s, MGCP disabled\n", config); 04137 return 0; 04138 } 04139 memset(&bindaddr, 0, sizeof(bindaddr)); 04140 dtmfmode = 0; 04141 04142 /* Copy the default jb config over global_jbconf */ 04143 memcpy(&global_jbconf, &default_jbconf, sizeof(struct ast_jb_conf)); 04144 04145 v = ast_variable_browse(cfg, "general"); 04146 while (v) { 04147 /* handle jb conf */ 04148 if (!ast_jb_read_conf(&global_jbconf, v->name, v->value)) { 04149 v = v->next; 04150 continue; 04151 } 04152 04153 /* Create the interface list */ 04154 if (!strcasecmp(v->name, "bindaddr")) { 04155 if (!(hp = ast_gethostbyname(v->value, &ahp))) { 04156 ast_log(LOG_WARNING, "Invalid address: %s\n", v->value); 04157 } else { 04158 memcpy(&bindaddr.sin_addr, hp->h_addr, sizeof(bindaddr.sin_addr)); 04159 } 04160 } else if (!strcasecmp(v->name, "allow")) { 04161 format = ast_getformatbyname(v->value); 04162 if (format < 1) 04163 ast_log(LOG_WARNING, "Cannot allow unknown format '%s'\n", v->value); 04164 else 04165 capability |= format; 04166 } else if (!strcasecmp(v->name, "disallow")) { 04167 format = ast_getformatbyname(v->value); 04168 if (format < 1) 04169 ast_log(LOG_WARNING, "Cannot disallow unknown format '%s'\n", v->value); 04170 else 04171 capability &= ~format; 04172 } else if (!strcasecmp(v->name, "tos")) { 04173 if (sscanf(v->value, "%d", &format) == 1) 04174 tos = format & 0xff; 04175 else if (!strcasecmp(v->value, "lowdelay")) 04176 tos = IPTOS_LOWDELAY; 04177 else if (!strcasecmp(v->value, "throughput")) 04178 tos = IPTOS_THROUGHPUT; 04179 else if (!strcasecmp(v->value, "reliability")) 04180 tos = IPTOS_RELIABILITY; 04181 else if (!strcasecmp(v->value, "mincost")) 04182 tos = IPTOS_MINCOST; 04183 else if (!strcasecmp(v->value, "none")) 04184 tos = 0; 04185 else 04186 ast_log(LOG_WARNING, "Invalid tos value at line %d, should be 'lowdelay', 'throughput', 'reliability', 'mincost', or 'none'\n", v->lineno); 04187 } else if (!strcasecmp(v->name, "port")) { 04188 if (sscanf(v->value, "%d", &ourport) == 1) { 04189 bindaddr.sin_port = htons(ourport); 04190 } else { 04191 ast_log(LOG_WARNING, "Invalid port number '%s' at line %d of %s\n", v->value, v->lineno, config); 04192 } 04193 } 04194 v = v->next; 04195 } 04196 04197 /* mark existing entries for deletion */ 04198 ast_mutex_lock(&gatelock); 04199 g = gateways; 04200 while (g) { 04201 g->delme = 1; 04202 e = g->endpoints; 04203 while (e) { 04204 e->delme = 1; 04205 e = e->next; 04206 } 04207 g = g->next; 04208 } 04209 ast_mutex_unlock(&gatelock); 04210 04211 cat = ast_category_browse(cfg, NULL); 04212 while(cat) { 04213 if (strcasecmp(cat, "general")) { 04214 ast_mutex_lock(&gatelock); 04215 g = build_gateway(cat, ast_variable_browse(cfg, cat)); 04216 if (g) { 04217 if (option_verbose > 2) { 04218 ast_verbose(VERBOSE_PREFIX_3 "Added gateway '%s'\n", g->name); 04219 } 04220 g->next = gateways; 04221 gateways = g; 04222 } 04223 ast_mutex_unlock(&gatelock); 04224 04225 /* FS: process queue and IO */ 04226 if (monitor_thread == pthread_self()) { 04227 if (sched) ast_sched_runq(sched); 04228 if (io) ast_io_wait(io, 10); 04229 } 04230 } 04231 cat = ast_category_browse(cfg, cat); 04232 } 04233 04234 /* prune deleted entries etc. */ 04235 prune_gateways(); 04236 04237 if (ntohl(bindaddr.sin_addr.s_addr)) { 04238 memcpy(&__ourip, &bindaddr.sin_addr, sizeof(__ourip)); 04239 } else { 04240 hp = ast_gethostbyname(ourhost, &ahp); 04241 if (!hp) { 04242 ast_log(LOG_WARNING, "Unable to get our IP address, MGCP disabled\n"); 04243 ast_config_destroy(cfg); 04244 return 0; 04245 } 04246 memcpy(&__ourip, hp->h_addr, sizeof(__ourip)); 04247 } 04248 if (!ntohs(bindaddr.sin_port)) 04249 bindaddr.sin_port = ntohs(DEFAULT_MGCP_CA_PORT); 04250 bindaddr.sin_family = AF_INET; 04251 ast_mutex_lock(&netlock); 04252 if (mgcpsock > -1) 04253 close(mgcpsock); 04254 04255 if (mgcpsock_read_id != NULL) 04256 ast_io_remove(io, mgcpsock_read_id); 04257 mgcpsock_read_id = NULL; 04258 04259 mgcpsock = socket(AF_INET, SOCK_DGRAM, 0); 04260 if (mgcpsock < 0) { 04261 ast_log(LOG_WARNING, "Unable to create MGCP socket: %s\n", strerror(errno)); 04262 } else { 04263 if (bind(mgcpsock, (struct sockaddr *)&bindaddr, sizeof(bindaddr)) < 0) { 04264 ast_log(LOG_WARNING, "Failed to bind to %s:%d: %s\n", 04265 ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port), 04266 strerror(errno)); 04267 close(mgcpsock); 04268 mgcpsock = -1; 04269 } else { 04270 if (option_verbose > 1) { 04271 ast_verbose(VERBOSE_PREFIX_2 "MGCP Listening on %s:%d\n", 04272 ast_inet_ntoa(bindaddr.sin_addr), ntohs(bindaddr.sin_port)); 04273 ast_verbose(VERBOSE_PREFIX_2 "Using TOS bits %d\n", tos); 04274 } 04275 if (setsockopt(mgcpsock, IPPROTO_IP, IP_TOS, &tos, sizeof(tos))) 04276 ast_log(LOG_WARNING, "Unable to set TOS to %d\n", tos); 04277 } 04278 } 04279 ast_mutex_unlock(&netlock); 04280 ast_config_destroy(cfg); 04281 04282 /* send audit only to the new endpoints */ 04283 g = gateways; 04284 while (g) { 04285 e = g->endpoints; 04286 while (e && e->needaudit) { 04287 e->needaudit = 0; 04288 transmit_audit_endpoint(e); 04289 ast_verbose(VERBOSE_PREFIX_3 "MGCP Auditing endpoint %s@%s for hookstate\n", e->name, g->name); 04290 e = e->next; 04291 } 04292 g = g->next; 04293 } 04294 04295 return 0; 04296 }
static int reqprep | ( | struct mgcp_request * | req, | |
struct mgcp_endpoint * | p, | |||
char * | verb | |||
) | [static] |
Definition at line 2014 of file chan_mgcp.c.
References init_req(), and oseq.
Referenced by transmit_audit_endpoint(), 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_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().
02015 { 02016 memset(req, 0, sizeof(struct mgcp_request)); 02017 oseq++; 02018 if (oseq > 999999999) 02019 oseq = 1; 02020 init_req(p, req, verb); 02021 return 0; 02022 }
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, mgcp_subchannel::parent, and mgcp_endpoint::sub.
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 2007 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().
02008 { 02009 memset(resp, 0, sizeof(*resp)); 02010 init_resp(resp, msg, req, msgrest); 02011 return 0; 02012 }
static int restart_monitor | ( | void | ) | [static] |
Definition at line 3528 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, LOG_WARNING, and monitor_thread.
03529 { 03530 /* If we're supposed to be stopped -- stay stopped */ 03531 if (monitor_thread == AST_PTHREADT_STOP) 03532 return 0; 03533 if (ast_mutex_lock(&monlock)) { 03534 ast_log(LOG_WARNING, "Unable to lock monitor\n"); 03535 return -1; 03536 } 03537 if (monitor_thread == pthread_self()) { 03538 ast_mutex_unlock(&monlock); 03539 ast_log(LOG_WARNING, "Cannot kill myself\n"); 03540 return -1; 03541 } 03542 if (monitor_thread != AST_PTHREADT_NULL) { 03543 /* Wake up the thread */ 03544 pthread_kill(monitor_thread, SIGURG); 03545 } else { 03546 /* Start a new monitor */ 03547 if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) { 03548 ast_mutex_unlock(&monlock); 03549 ast_log(LOG_ERROR, "Unable to start monitor thread.\n"); 03550 return -1; 03551 } 03552 } 03553 ast_mutex_unlock(&monlock); 03554 return 0; 03555 }
static int retrans_pkt | ( | const void * | data | ) | [static] |
Definition at line 611 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, mgcpdebug, 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().
00612 { 00613 struct mgcp_gateway *gw = (struct mgcp_gateway *)data; 00614 struct mgcp_message *cur, *exq = NULL, *w, *prev; 00615 int res = 0; 00616 00617 /* find out expired msgs */ 00618 ast_mutex_lock(&gw->msgs_lock); 00619 00620 prev = NULL, cur = gw->msgs; 00621 while (cur) { 00622 if (cur->retrans < MAX_RETRANS) { 00623 cur->retrans++; 00624 if (mgcpdebug) { 00625 ast_verbose("Retransmitting #%d transaction %u on [%s]\n", 00626 cur->retrans, cur->seqno, gw->name); 00627 } 00628 __mgcp_xmit(gw, cur->buf, cur->len); 00629 00630 prev = cur; 00631 cur = cur->next; 00632 } else { 00633 if (prev) 00634 prev->next = cur->next; 00635 else 00636 gw->msgs = cur->next; 00637 00638 ast_log(LOG_WARNING, "Maximum retries exceeded for transaction %u on [%s]\n", 00639 cur->seqno, gw->name); 00640 00641 w = cur; 00642 cur = cur->next; 00643 00644 if (exq) { 00645 w->next = exq; 00646 } else { 00647 w->next = NULL; 00648 } 00649 exq = w; 00650 } 00651 } 00652 00653 if (!gw->msgs) { 00654 gw->retransid = -1; 00655 res = 0; 00656 } else { 00657 res = 1; 00658 } 00659 ast_mutex_unlock(&gw->msgs_lock); 00660 00661 while (exq) { 00662 cur = exq; 00663 /* time-out transaction */ 00664 handle_response(cur->owner_ep, cur->owner_sub, 406, cur->seqno, NULL); 00665 exq = exq->next; 00666 free(cur); 00667 } 00668 00669 return res; 00670 }
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 739 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(), mgcpdebug, 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_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_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().
00741 { 00742 int res = 0; 00743 struct mgcp_request **queue, *q, *r, *t; 00744 ast_mutex_t *l; 00745 00746 ast_log(LOG_DEBUG, "Slow sequence is %d\n", p->slowsequence); 00747 if (p->slowsequence) { 00748 queue = &p->cmd_queue; 00749 l = &p->cmd_queue_lock; 00750 ast_mutex_lock(l); 00751 } else { 00752 switch (req->cmd) { 00753 case MGCP_CMD_DLCX: 00754 queue = &sub->cx_queue; 00755 l = &sub->cx_queue_lock; 00756 ast_mutex_lock(l); 00757 q = sub->cx_queue; 00758 /* delete pending cx cmds */ 00759 while (q) { 00760 r = q->next; 00761 free(q); 00762 q = r; 00763 } 00764 *queue = NULL; 00765 break; 00766 00767 case MGCP_CMD_CRCX: 00768 case MGCP_CMD_MDCX: 00769 queue = &sub->cx_queue; 00770 l = &sub->cx_queue_lock; 00771 ast_mutex_lock(l); 00772 break; 00773 00774 case MGCP_CMD_RQNT: 00775 queue = &p->rqnt_queue; 00776 l = &p->rqnt_queue_lock; 00777 ast_mutex_lock(l); 00778 break; 00779 00780 default: 00781 queue = &p->cmd_queue; 00782 l = &p->cmd_queue_lock; 00783 ast_mutex_lock(l); 00784 break; 00785 } 00786 } 00787 00788 r = (struct mgcp_request *) malloc (sizeof(struct mgcp_request)); 00789 if (!r) { 00790 ast_log(LOG_WARNING, "Cannot post MGCP request: insufficient memory\n"); 00791 ast_mutex_unlock(l); 00792 return -1; 00793 } 00794 memcpy(r, req, sizeof(struct mgcp_request)); 00795 00796 if (!(*queue)) { 00797 if (mgcpdebug) { 00798 ast_verbose("Posting Request:\n%s to %s:%d\n", req->data, 00799 ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 00800 } 00801 00802 res = mgcp_postrequest(p, sub, req->data, req->len, seqno); 00803 } else { 00804 if (mgcpdebug) { 00805 ast_verbose("Queueing Request:\n%s to %s:%d\n", req->data, 00806 ast_inet_ntoa(p->parent->addr.sin_addr), ntohs(p->parent->addr.sin_port)); 00807 } 00808 } 00809 00810 /* XXX find tail. We could also keep tail in the data struct for faster access */ 00811 for (t = *queue; t && t->next; t = t->next); 00812 00813 r->next = NULL; 00814 if (t) 00815 t->next = r; 00816 else 00817 *queue = r; 00818 00819 ast_mutex_unlock(l); 00820 00821 return res; 00822 }
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, mgcp_subchannel::parent, and mgcp_endpoint::sub.
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 2625 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, io, 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(), and skinny_answer().
02626 { 02627 ast_mutex_lock(&sub->lock); 02628 /* check again to be on the safe side */ 02629 if (sub->rtp) { 02630 ast_rtp_destroy(sub->rtp); 02631 sub->rtp = NULL; 02632 } 02633 /* Allocate the RTP now */ 02634 sub->rtp = ast_rtp_new_with_bindaddr(sched, io, 1, 0, bindaddr.sin_addr); 02635 if (sub->rtp && sub->owner) 02636 sub->owner->fds[0] = ast_rtp_fd(sub->rtp); 02637 if (sub->rtp) 02638 ast_rtp_setnat(sub->rtp, sub->nat); 02639 #if 0 02640 ast_rtp_set_callback(p->rtp, rtpready); 02641 ast_rtp_set_data(p->rtp, p); 02642 #endif 02643 /* Make a call*ID */ 02644 snprintf(sub->callid, sizeof(sub->callid), "%08lx%s", ast_random(), sub->txident); 02645 /* Transmit the connection create */ 02646 transmit_connect_with_sdp(sub, NULL); 02647 ast_mutex_unlock(&sub->lock); 02648 }
static int transmit_audit_endpoint | ( | struct mgcp_endpoint * | p | ) | [static] |
Definition at line 2334 of file chan_mgcp.c.
References add_header(), mgcp_request::cmd, MGCP_CMD_AUEP, oseq, reqprep(), send_request(), and mgcp_request::trid.
Referenced by handle_request(), mgcp_audit_endpoint(), and reload_config().
02335 { 02336 struct mgcp_request resp; 02337 reqprep(&resp, p, "AUEP"); 02338 /* removed unknown param VS */ 02339 /*add_header(&resp, "F", "A,R,D,S,X,N,I,T,O,ES,E,MD,M");*/ 02340 add_header(&resp, "F", "A"); 02341 /* fill in new fields */ 02342 resp.cmd = MGCP_CMD_AUEP; 02343 resp.trid = oseq; 02344 return send_request(p, NULL, &resp, oseq); /* SC */ 02345 }
static int transmit_connect_with_sdp | ( | struct mgcp_subchannel * | sub, | |
struct ast_rtp * | rtp | |||
) | [static] |
Definition at line 2180 of file chan_mgcp.c.
References AST_FORMAT_MAX_AUDIO, ast_rtp_lookup_mime_subtype(), mgcp_endpoint::capability, mgcp_subchannel::parent, and mgcp_endpoint::sub.
Referenced by start_rtp().
02181 { 02182 struct mgcp_request resp; 02183 char local[256]; 02184 char tmp[80]; 02185 int x; 02186 struct mgcp_endpoint *p = sub->parent; 02187 02188 snprintf(local, sizeof(local), "p:20"); 02189 for (x=1;x<= AST_FORMAT_MAX_AUDIO; x <<= 1) { 02190 if (p->capability & x) { 02191 snprintf(tmp, sizeof(tmp), ", a:%s", ast_rtp_lookup_mime_subtype(1, x, 0)); 02192 strncat(local, tmp, sizeof(local) - strlen(local) - 1); 02193 } 02194 } 02195 if (mgcpdebug) { 02196 ast_verbose(VERBOSE_PREFIX_3 "Creating connection for %s@%s-%d in cxmode: %s callid: %s\n", 02197 p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode], sub->callid); 02198 } 02199 reqprep(&resp, p, "CRCX"); 02200 add_header(&resp, "C", sub->callid); 02201 add_header(&resp, "L", local); 02202 add_header(&resp, "M", mgcp_cxmodes[sub->cxmode]); 02203 /* X header should not be sent. kept for compatibility */ 02204 add_header(&resp, "X", sub->txident); 02205 /*add_header(&resp, "S", "");*/ 02206 add_sdp(&resp, sub, rtp); 02207 /* fill in new fields */ 02208 resp.cmd = MGCP_CMD_CRCX; 02209 resp.trid = oseq; 02210 return send_request(p, sub, &resp, oseq); /* SC */ 02211 }
static int transmit_connection_del | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 2347 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_cxmodes, mgcp_gateway::name, mgcp_endpoint::name, oseq, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), send_request(), mgcp_endpoint::sub, mgcp_request::trid, mgcp_subchannel::txident, and VERBOSE_PREFIX_3.
Referenced by destroy_endpoint(), handle_request(), handle_response(), mgcp_hangup(), and unalloc_sub().
02348 { 02349 struct mgcp_endpoint *p = sub->parent; 02350 struct mgcp_request resp; 02351 02352 if (mgcpdebug) { 02353 ast_verbose(VERBOSE_PREFIX_3 "Delete connection %s %s@%s-%d with new mode: %s on callid: %s\n", 02354 sub->cxident, p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode], sub->callid); 02355 } 02356 reqprep(&resp, p, "DLCX"); 02357 /* check if call id is avail */ 02358 if (sub->callid[0]) 02359 add_header(&resp, "C", sub->callid); 02360 /* X header should not be sent. kept for compatibility */ 02361 add_header(&resp, "X", sub->txident); 02362 /* check if cxident is avail */ 02363 if (sub->cxident[0]) 02364 add_header(&resp, "I", sub->cxident); 02365 /* fill in new fields */ 02366 resp.cmd = MGCP_CMD_DLCX; 02367 resp.trid = oseq; 02368 return send_request(p, sub, &resp, oseq); /* SC */ 02369 }
static int transmit_connection_del_w_params | ( | struct mgcp_endpoint * | p, | |
char * | callid, | |||
char * | cxident | |||
) | [static] |
Definition at line 2371 of file chan_mgcp.c.
References add_header(), ast_verbose(), MGCP_CMD_DLCX, mgcp_gateway::name, mgcp_endpoint::name, oseq, mgcp_endpoint::parent, reqprep(), send_request(), mgcp_endpoint::sub, and VERBOSE_PREFIX_3.
Referenced by handle_response().
02372 { 02373 struct mgcp_request resp; 02374 02375 if (mgcpdebug) { 02376 ast_verbose(VERBOSE_PREFIX_3 "Delete connection %s %s@%s on callid: %s\n", 02377 cxident ? cxident : "", p->name, p->parent->name, callid ? callid : ""); 02378 } 02379 reqprep(&resp, p, "DLCX"); 02380 /* check if call id is avail */ 02381 if (callid && *callid) 02382 add_header(&resp, "C", callid); 02383 /* check if cxident is avail */ 02384 if (cxident && *cxident) 02385 add_header(&resp, "I", cxident); 02386 /* fill in new fields */ 02387 resp.cmd = MGCP_CMD_DLCX; 02388 resp.trid = oseq; 02389 return send_request(p, p->sub, &resp, oseq); 02390 }
static int transmit_modify_request | ( | struct mgcp_subchannel * | sub | ) | [static] |
Definition at line 2289 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_cxmodes, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_gateway::name, mgcp_endpoint::name, oseq, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), send_request(), mgcp_endpoint::sub, mgcp_request::trid, mgcp_subchannel::txident, and VERBOSE_PREFIX_3.
Referenced by handle_hd_hf(), handle_request(), mgcp_answer(), mgcp_call(), and mgcp_hangup().
02290 { 02291 struct mgcp_request resp; 02292 struct mgcp_endpoint *p = sub->parent; 02293 02294 if (ast_strlen_zero(sub->cxident)) { 02295 /* We don't have a CXident yet, store the destination and 02296 wait a bit */ 02297 return 0; 02298 } 02299 if (mgcpdebug) { 02300 ast_verbose(VERBOSE_PREFIX_3 "Modified %s@%s-%d with new mode: %s on callid: %s\n", 02301 p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode], sub->callid); 02302 } 02303 reqprep(&resp, p, "MDCX"); 02304 add_header(&resp, "C", sub->callid); 02305 add_header(&resp, "M", mgcp_cxmodes[sub->cxmode]); 02306 /* X header should not be sent. kept for compatibility */ 02307 add_header(&resp, "X", sub->txident); 02308 add_header(&resp, "I", sub->cxident); 02309 switch (sub->parent->hookstate) { 02310 case MGCP_ONHOOK: 02311 add_header(&resp, "R", "L/hd(N)"); 02312 break; 02313 case MGCP_OFFHOOK: 02314 add_header_offhook(sub, &resp); 02315 break; 02316 } 02317 /* fill in new fields */ 02318 resp.cmd = MGCP_CMD_MDCX; 02319 resp.trid = oseq; 02320 return send_request(p, sub, &resp, oseq); /* SC */ 02321 }
static int transmit_modify_with_sdp | ( | struct mgcp_subchannel * | sub, | |
struct ast_rtp * | rtp, | |||
int | codecs | |||
) | [static] |
Definition at line 2140 of file chan_mgcp.c.
References AST_FORMAT_MAX_AUDIO, ast_rtp_get_peer(), ast_rtp_lookup_mime_subtype(), ast_strlen_zero(), mgcp_endpoint::capability, capability, mgcp_subchannel::cxident, mgcp_subchannel::parent, mgcp_endpoint::sub, and mgcp_subchannel::tmpdest.
Referenced by handle_response(), and mgcp_set_rtp_peer().
02141 { 02142 struct mgcp_request resp; 02143 char local[256]; 02144 char tmp[80]; 02145 int x; 02146 int capability; 02147 struct mgcp_endpoint *p = sub->parent; 02148 02149 capability = p->capability; 02150 if (codecs) 02151 capability = codecs; 02152 if (ast_strlen_zero(sub->cxident) && rtp) { 02153 /* We don't have a CXident yet, store the destination and 02154 wait a bit */ 02155 ast_rtp_get_peer(rtp, &sub->tmpdest); 02156 return 0; 02157 } 02158 snprintf(local, sizeof(local), "p:20"); 02159 for (x=1;x<= AST_FORMAT_MAX_AUDIO; x <<= 1) { 02160 if (p->capability & x) { 02161 snprintf(tmp, sizeof(tmp), ", a:%s", ast_rtp_lookup_mime_subtype(1, x, 0)); 02162 strncat(local, tmp, sizeof(local) - strlen(local) - 1); 02163 } 02164 } 02165 reqprep(&resp, p, "MDCX"); 02166 add_header(&resp, "C", sub->callid); 02167 add_header(&resp, "L", local); 02168 add_header(&resp, "M", mgcp_cxmodes[sub->cxmode]); 02169 /* X header should not be sent. kept for compatibility */ 02170 add_header(&resp, "X", sub->txident); 02171 add_header(&resp, "I", sub->cxident); 02172 /*add_header(&resp, "S", "");*/ 02173 add_sdp(&resp, sub, rtp); 02174 /* fill in new fields */ 02175 resp.cmd = MGCP_CMD_MDCX; 02176 resp.trid = oseq; 02177 return send_request(p, sub, &resp, oseq); /* SC */ 02178 }
static int transmit_notify_request | ( | struct mgcp_subchannel * | sub, | |
char * | tone | |||
) | [static] |
Definition at line 2213 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_cxmodes, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_gateway::name, mgcp_endpoint::name, oseq, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), mgcp_endpoint::rqnt_ident, send_request(), mgcp_endpoint::sub, 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().
02214 { 02215 struct mgcp_request resp; 02216 struct mgcp_endpoint *p = sub->parent; 02217 02218 if (mgcpdebug) { 02219 ast_verbose(VERBOSE_PREFIX_3 "MGCP Asked to indicate tone: %s on %s@%s-%d in cxmode: %s\n", 02220 tone, p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode]); 02221 } 02222 ast_copy_string(p->curtone, tone, sizeof(p->curtone)); 02223 reqprep(&resp, p, "RQNT"); 02224 add_header(&resp, "X", p->rqnt_ident); /* SC */ 02225 switch (p->hookstate) { 02226 case MGCP_ONHOOK: 02227 add_header(&resp, "R", "L/hd(N)"); 02228 break; 02229 case MGCP_OFFHOOK: 02230 add_header_offhook(sub, &resp); 02231 break; 02232 } 02233 if (!ast_strlen_zero(tone)) { 02234 add_header(&resp, "S", tone); 02235 } 02236 /* fill in new fields */ 02237 resp.cmd = MGCP_CMD_RQNT; 02238 resp.trid = oseq; 02239 return send_request(p, NULL, &resp, oseq); /* SC */ 02240 }
static int transmit_notify_request_with_callerid | ( | struct mgcp_subchannel * | sub, | |
char * | tone, | |||
char * | callernum, | |||
char * | callername | |||
) | [static] |
Definition at line 2242 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_cxmodes, MGCP_OFFHOOK, MGCP_ONHOOK, mgcp_gateway::name, mgcp_endpoint::name, oseq, mgcp_endpoint::parent, mgcp_subchannel::parent, reqprep(), mgcp_endpoint::rqnt_ident, send_request(), mgcp_endpoint::sub, t, mgcp_request::trid, and VERBOSE_PREFIX_3.
Referenced by mgcp_call(), and mgcp_hangup().
02243 { 02244 struct mgcp_request resp; 02245 char tone2[256]; 02246 char *l, *n; 02247 time_t t; 02248 struct tm tm; 02249 struct mgcp_endpoint *p = sub->parent; 02250 02251 time(&t); 02252 ast_localtime(&t, &tm, NULL); 02253 n = callername; 02254 l = callernum; 02255 if (!n) 02256 n = ""; 02257 if (!l) 02258 l = ""; 02259 02260 /* Keep track of last callerid for blacklist and callreturn */ 02261 ast_copy_string(p->lastcallerid, l, sizeof(p->lastcallerid)); 02262 02263 snprintf(tone2, sizeof(tone2), "%s,L/ci(%02d/%02d/%02d/%02d,%s,%s)", tone, 02264 tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, l, n); 02265 ast_copy_string(p->curtone, tone, sizeof(p->curtone)); 02266 reqprep(&resp, p, "RQNT"); 02267 add_header(&resp, "X", p->rqnt_ident); /* SC */ 02268 switch (p->hookstate) { 02269 case MGCP_ONHOOK: 02270 add_header(&resp, "R", "L/hd(N)"); 02271 break; 02272 case MGCP_OFFHOOK: 02273 add_header_offhook(sub, &resp); 02274 break; 02275 } 02276 if (!ast_strlen_zero(tone2)) { 02277 add_header(&resp, "S", tone2); 02278 } 02279 if (mgcpdebug) { 02280 ast_verbose(VERBOSE_PREFIX_3 "MGCP Asked to indicate tone: %s on %s@%s-%d in cxmode: %s\n", 02281 tone2, p->name, p->parent->name, sub->id, mgcp_cxmodes[sub->cxmode]); 02282 } 02283 /* fill in new fields */ 02284 resp.cmd = MGCP_CMD_RQNT; 02285 resp.trid = oseq; 02286 return send_request(p, NULL, &resp, oseq); /* SC */ 02287 }
static int transmit_response | ( | struct mgcp_subchannel * | sub, | |
char * | msg, | |||
struct mgcp_request * | req, | |||
char * | msgrest | |||
) | [static] |
Definition at line 2024 of file chan_mgcp.c.
References mgcp_request::data, mgcp_request::identifier, mgcp_request::len, malloc, mgcp_endpoint::parent, mgcp_subchannel::parent, mgcp_gateway::responses, respprep(), send_response(), and mgcp_endpoint::sub.
Referenced by 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().
02025 { 02026 struct mgcp_request resp; 02027 struct mgcp_endpoint *p = sub->parent; 02028 struct mgcp_response *mgr; 02029 02030 respprep(&resp, p, msg, req, msgrest); 02031 mgr = malloc(sizeof(struct mgcp_response) + resp.len + 1); 02032 if (mgr) { 02033 /* Store MGCP response in case we have to retransmit */ 02034 memset(mgr, 0, sizeof(struct mgcp_response)); 02035 sscanf(req->identifier, "%d", &mgr->seqno); 02036 time(&mgr->whensent); 02037 mgr->len = resp.len; 02038 memcpy(mgr->buf, resp.data, resp.len); 02039 mgr->buf[resp.len] = '\0'; 02040 mgr->next = p->parent->responses; 02041 p->parent->responses = mgr; 02042 } 02043 return send_response(sub, &resp); 02044 }
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 4363 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(), cli_mgcp, mgcp_endpoint::delme, mgcp_gateway::delme, mgcp_gateway::endpoints, gateways, LOG_WARNING, mgcp_reload(), mgcp_reloading, mgcp_rtp, mgcp_tech, mgcpsock, monitor_thread, mgcp_endpoint::next, mgcp_gateway::next, prune_gateways(), and sched_context_destroy().
04364 { 04365 struct mgcp_endpoint *e; 04366 struct mgcp_gateway *g; 04367 04368 /* Check to see if we're reloading */ 04369 if (ast_mutex_trylock(&mgcp_reload_lock)) { 04370 ast_log(LOG_WARNING, "MGCP is currently reloading. Unable to remove module.\n"); 04371 return -1; 04372 } else { 04373 mgcp_reloading = 1; 04374 ast_mutex_unlock(&mgcp_reload_lock); 04375 } 04376 04377 /* First, take us out of the channel loop */ 04378 ast_channel_unregister(&mgcp_tech); 04379 04380 /* Shut down the monitoring thread */ 04381 if (!ast_mutex_lock(&monlock)) { 04382 if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP)) { 04383 pthread_cancel(monitor_thread); 04384 pthread_kill(monitor_thread, SIGURG); 04385 pthread_join(monitor_thread, NULL); 04386 } 04387 monitor_thread = AST_PTHREADT_STOP; 04388 ast_mutex_unlock(&monlock); 04389 } else { 04390 ast_log(LOG_WARNING, "Unable to lock the monitor\n"); 04391 /* We always want to leave this in a consistent state */ 04392 ast_channel_register(&mgcp_tech); 04393 mgcp_reloading = 0; 04394 mgcp_reload(0, 0, NULL); 04395 return -1; 04396 } 04397 04398 if (!ast_mutex_lock(&gatelock)) { 04399 for (g = gateways; g; g = g->next) { 04400 g->delme = 1; 04401 for (e = g->endpoints; e; e = e->next) 04402 e->delme = 1; 04403 } 04404 04405 prune_gateways(); 04406 ast_mutex_unlock(&gatelock); 04407 } else { 04408 ast_log(LOG_WARNING, "Unable to lock the gateways list.\n"); 04409 /* We always want to leave this in a consistent state */ 04410 ast_channel_register(&mgcp_tech); 04411 /* Allow the monitor to restart */ 04412 monitor_thread = AST_PTHREADT_NULL; 04413 mgcp_reloading = 0; 04414 mgcp_reload(0, 0, NULL); 04415 return -1; 04416 } 04417 04418 close(mgcpsock); 04419 ast_rtp_proto_unregister(&mgcp_rtp); 04420 ast_cli_unregister_multiple(cli_mgcp, sizeof(cli_mgcp) / sizeof(struct ast_cli_entry)); 04421 sched_context_destroy(sched); 04422 04423 return 0; 04424 }
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 1054 of file chan_mgcp.c.
struct sockaddr_in bindaddr [static] |
Definition at line 409 of file chan_mgcp.c.
int callreturn = 0 [static] |
int callwaiting = 0 [static] |
int cancallforward = 0 [static] |
int canreinvite = CANREINVITE [static] |
int capability = AST_FORMAT_ULAW [static] |
Definition at line 220 of file chan_mgcp.c.
Referenced by add_sdp(), build_gateway(), build_setup(), iax2_call(), mgcp_new(), mgcp_request(), parse_setup(), process_sdp(), reload_config(), set_config(), set_local_capabilities(), and transmit_modify_with_sdp().
char cid_name[AST_MAX_EXTENSION] = "" [static] |
Definition at line 160 of file chan_mgcp.c.
Referenced by __oh323_new(), build_device(), build_gateway(), 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(), build_device(), build_gateway(), 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] |
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] |
ast_group_t cur_pickupgroup = 0 [static] |
char debug_usage[] [static] |
Initial value:
"Usage: mgcp set debug\n" " Enables dumping of MGCP packets for debugging purposes\n"
Definition at line 1059 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] |
Definition at line 162 of file chan_mgcp.c.
Referenced by build_gateway(), reload_config(), and set_local_capabilities().
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(), mgcp_ss(), and skinny_ss().
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.
Referenced by mgcp_ss(), and skinny_ss().
struct ast_jb_conf global_jbconf [static] |
Definition at line 110 of file chan_mgcp.c.
int immediate = 0 [static] |
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_device(), build_gateway(), 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.
Referenced by mgcp_ss(), and skinny_ss().
char* mgcp_cxmodes[] [static] |
}
Definition at line 135 of file chan_mgcp.c.
Referenced by transmit_connection_del(), transmit_modify_request(), transmit_notify_request(), and transmit_notify_request_with_callerid().
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 1067 of file chan_mgcp.c.
int mgcp_reloading = 0 [static] |
Definition at line 402 of file chan_mgcp.c.
Referenced by do_monitor(), mgcp_reload(), and unload_module().
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 4016 of file chan_mgcp.c.
Referenced by load_module(), and unload_module().
struct ast_channel_tech mgcp_tech [static] |
Definition at line 439 of file chan_mgcp.c.
Referenced by load_module(), mgcp_new(), and unload_module().
int mgcpdebug = 0 [static] |
Definition at line 227 of file chan_mgcp.c.
Referenced by add_sdp(), mgcp_audit_endpoint(), mgcp_call(), mgcp_do_debug(), mgcp_hangup(), mgcp_indicate(), mgcp_no_debug(), parse(), process_sdp(), retrans_pkt(), and send_request().
int mgcpsock = -1 [static] |
Definition at line 407 of file chan_mgcp.c.
Referenced by do_monitor(), mgcpsock_read(), reload_config(), and unload_module().
int* mgcpsock_read_id = NULL [static] |
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(), build_gateway(), func_channel_write(), gtalk_new(), moh2_exec(), moh_write(), and read_config().
int nat = 0 [static] |
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 1063 of file chan_mgcp.c.
int nonCodecCapability = AST_RTP_DTMF [static] |
unsigned int oseq [static] |
Definition at line 197 of file chan_mgcp.c.
Referenced by init_req(), reqprep(), transmit_audit_endpoint(), transmit_connection_del(), transmit_connection_del_w_params(), transmit_modify_request(), transmit_notify_request(), and transmit_notify_request_with_callerid().
char ourhost[MAXHOSTNAMELEN] [static] |
Definition at line 223 of file chan_mgcp.c.
Referenced by ast_find_ourip(), handle_server_request_message(), and reload_config().
int ourport [static] |
Definition at line 225 of file chan_mgcp.c.
Referenced by build_contact(), build_via(), handle_server_request_message(), 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 1050 of file chan_mgcp.c.
int singlepath = 0 [static] |
int slowsequence = 0 [static] |
const char tdesc[] = "Media Gateway Control Protocol (MGCP)" [static] |
Definition at line 112 of file chan_mgcp.c.
int threewaycalling = 0 [static] |
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 build_device(), build_gateway(), leave_voicemail(), and send_packet().