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asterisk/res/res_pktccops.c

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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2009, Attila Domjan
*
* Attila Domjan <attila.domjan.hu@gmail.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*!\file
*
* \brief PacketCable COPS
*
* \author Attila Domjan <attila.domjan.hu@gmail.com>
*
* \note
* This module is an add-on to chan_mgcp. It adds support for the
* PacketCable MGCP variation called NCS. Res_pktccops implements COPS
* (RFC 2748), a protocol used to manage dynamic bandwith allocation in
* CMTS's (HFC gateways). When you use NCS, you need to talk COPS with
* the CMTS to complete the calls.
*/
/*** MODULEINFO
<defaultenabled>no</defaultenabled>
<support_level>extended</support_level>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <sys/types.h>
#include <sys/socket.h>
#include <fcntl.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <arpa/inet.h>
#include <signal.h>
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/options.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#define AST_API_MODULE
#include "asterisk/pktccops.h"
#define DEFAULT_COPS_PORT "2126"
#define COPS_HEADER_SIZE 8
#define COPS_OBJECT_HEADER_SIZE 4
#define GATE_SET_OBJ_SIZE 144
#define GATEID_OBJ_SIZE 8
#define GATE_INFO_OBJ_SIZE 24
#define PKTCCOPS_SCOMMAND_GATE_ALLOC 1
#define PKTCCOPS_SCOMMAND_GATE_ALLOC_ACK 2
#define PKTCCOPS_SCOMMAND_GATE_ALLOC_ERR 3
#define PKTCCOPS_SCOMMAND_GATE_SET 4
#define PKTCCOPS_SCOMMAND_GATE_SET_ACK 5
#define PKTCCOPS_SCOMMAND_GATE_SET_ERR 6
#define PKTCCOPS_SCOMMAND_GATE_INFO 7
#define PKTCCOPS_SCOMMAND_GATE_INFO_ACK 8
#define PKTCCOPS_SCOMMAND_GATE_INFO_ERR 9
#define PKTCCOPS_SCOMMAND_GATE_DELETE 10
#define PKTCCOPS_SCOMMAND_GATE_DELETE_ACK 11
#define PKTCCOPS_SCOMMAND_GATE_DELETE_ERR 12
#define PKTCCOPS_SCOMMAND_GATE_OPEN 13
#define PKTCCOPS_SCOMMAND_GATE_CLOSE 14
AST_MUTEX_DEFINE_STATIC(pktccops_lock);
static pthread_t pktccops_thread = AST_PTHREADT_NULL;
static uint16_t cops_trid = 0;
struct pktcobj {
uint16_t length;
unsigned char cnum;
unsigned char ctype;
char *contents;
struct pktcobj *next;
};
struct copsmsg {
unsigned char verflag;
unsigned char opcode;
uint16_t clienttype;
uint32_t length;
struct pktcobj *object;
char *msg; /* != NULL if not packet cable message received */
};
struct gatespec {
int direction; /* 0-DS, 1-US */
int protocolid;
int flags; /* 0x00 */
int sessionclass; /* normal voip: 0x01, high priority voip: 0x02, unspecified: 0x00 */
uint32_t srcip;
uint32_t dstip;
uint16_t srcp;
uint16_t dstp;
int diffserv;
uint16_t t1;
uint16_t t7;
uint16_t t8;
uint32_t r; /* Token Bucket Rate */
uint32_t b; /* token Bucket Size */
uint32_t p; /* Peak Data Rate */
uint32_t m; /* Minimum Policed Size*/
uint32_t mm; /* Maximum Policed Size */
uint32_t rate;
uint32_t s; /* Allowable Jitter*/
};
struct cops_cmts {
AST_LIST_ENTRY(cops_cmts) list;
char name[80];
char host[80];
char port[80];
uint16_t t1;
uint16_t t7;
uint16_t t8;
uint32_t keepalive;
uint32_t handle;
int state;
time_t contime;
time_t katimer;
int sfd;
int need_delete;
};
struct cops_ippool {
AST_LIST_ENTRY(cops_ippool) list;
uint32_t start;
uint32_t stop;
struct cops_cmts *cmts;
};
static uint16_t t1 = 250;
static uint16_t t7 = 200;
static uint16_t t8 = 300;
static uint32_t keepalive = 60;
static int pktccopsdebug = 0;
static int pktcreload = 0;
static int gateinfoperiod = 60;
static int gatetimeout = 150;
AST_LIST_HEAD_STATIC(cmts_list, cops_cmts);
AST_LIST_HEAD_STATIC(ippool_list, cops_ippool);
AST_LIST_HEAD_STATIC(gate_list, cops_gate);
static int pktccops_add_ippool(struct cops_ippool *ippool);
static struct cops_gate *cops_gate_cmd(int cmd, struct cops_cmts *cmts, uint16_t trid, uint32_t mta, uint32_t actcount, float bitrate, uint32_t psize, uint32_t ssip, uint16_t ssport, struct cops_gate *gate);
static void pktccops_unregister_ippools(void);
static int load_pktccops_config(void);
static uint32_t ftoieeef(float n)
{
uint32_t res;
memcpy(&res, &n, 4);
return htonl(res);
}
static uint16_t cops_constructgatespec(struct gatespec *gs, char *res)
{
if (res == NULL) {
return 0;
}
*res = (char) gs->direction;
*(res + 1) = (char) gs->protocolid;
*(res + 2) = (char) gs->flags;
*(res + 3) = (char) gs->sessionclass;
*((uint32_t *) (res + 4)) = gs->srcip;
*((uint32_t *) (res + 8)) = gs->dstip;
*((uint16_t *) (res + 12)) = gs->srcp;
*((uint16_t *) (res + 14)) = gs->dstp;
*(res + 16) = (char) gs->diffserv;
*(res + 17) = 0; /* reserved */
*(res + 18) = 0; /* reserved */
*(res + 19) = 0; /* reserved */
*((uint16_t *) (res + 20)) = gs->t1;
*(res + 22) = 0; /* reserved */
*(res + 23) = 0; /* reserved */
*((uint16_t *) (res + 24)) = gs->t7;
*((uint16_t *) (res + 26)) = gs->t8;
*((uint32_t *) (res + 28)) = gs->r;
*((uint32_t *) (res + 32)) = gs->b;
*((uint32_t *) (res + 36)) = gs->p;
*((uint32_t *) (res + 40)) = gs->m;
*((uint32_t *) (res + 44)) = gs->mm;
*((uint32_t *) (res + 48)) = gs->rate;
*((uint32_t *) (res + 52)) = gs->s;
return 56; /* length */
};
static uint16_t cops_construct_gate (int cmd, char *p, uint16_t trid,
uint32_t mtahost, uint32_t actcount, float rate, uint32_t psizegateid,
uint32_t ssip, uint16_t ssport, uint32_t gateid, struct cops_cmts *cmts)
{
struct gatespec gs;
int offset = 0;
ast_debug(3, "CMD: %d\n", cmd);
/* Transaction Identifier 8 octets */
*(p + offset++) = 0;
*(p + offset++) = 8; /* length */
*(p + offset++) = 1; /* snum */
*(p + offset++) = 1; /* stype */
*((uint16_t *) (p + offset)) = htons(trid);
offset += 2;
*(p + offset++) = 0;
*(p + offset++) = (cmd == GATE_DEL) ? PKTCCOPS_SCOMMAND_GATE_DELETE : (cmd != GATE_INFO) ? PKTCCOPS_SCOMMAND_GATE_SET : PKTCCOPS_SCOMMAND_GATE_INFO; /* 4: GATE-SET, 7: GATE-INFO */
/*Subscriper Identifier 8 octets */
*(p + offset++) = 0;
*(p + offset++) = 8; /* length */
*(p + offset++) = 2; /* snum */
*(p + offset++) = 1; /* stype */
*((uint32_t *) (p + offset)) = htonl(mtahost);
offset += 4;
if (cmd == GATE_INFO || cmd == GATE_SET_HAVE_GATEID || cmd == GATE_DEL) {
/* Gate ID 8 Octets */
*(p + offset++) = 0;
*(p + offset++) = 8; /* length */
*(p + offset++) = 3; /* snum */
*(p + offset++) = 1; /* stype */
*((uint32_t *) (p + offset)) = htonl(gateid);
offset += 4;
if (cmd == GATE_INFO || cmd == GATE_DEL) {
return offset;
}
}
/* Activity Count 8 octets */
*(p + offset++) = 0;
*(p + offset++) = 8; /* length */
*(p + offset++) = 4; /* snum */
*(p + offset++) = 1; /* stype */
*((uint32_t *) (p + offset)) = htonl(actcount);
offset += 4;
/* Gate Spec 2*60 Octets */
gs.direction = 0; /* DS */
gs.protocolid = 17; /* UDP */
gs.flags = 0;
gs.sessionclass = 1;
gs.srcip = htonl(ssip);
gs.dstip = htonl(mtahost);
gs.srcp = htons(ssport);
gs.dstp = 0;
/* gs.diffserv = 0xa0;*/
gs.diffserv = 0;
gs.t1 = htons(cmts->t1);
gs.t7 = htons(cmts->t7);
gs.t8 = htons(cmts->t8);
gs.r = ftoieeef(rate);
gs.b = ftoieeef(psizegateid);
gs.p = ftoieeef(rate);
gs.m = htonl((uint32_t) psizegateid);
gs.mm = htonl((uint32_t) psizegateid);
gs.rate = ftoieeef(rate);
gs.s = htonl(800);
*(p + offset) = 0;
offset++;
*(p + offset) = 60; /* length */
offset++;
*(p + offset) = 5; /* snum */
offset++;
*(p + offset) = 1; /* stype */
offset++;
offset += cops_constructgatespec(&gs, p + offset);
gs.direction = 1; /* US */
gs.srcip = htonl(mtahost);
gs.dstip = htonl(ssip);
gs.srcp = 0;
gs.dstp = htons(ssport);
*(p + offset) = 0;
offset++;
*(p + offset) = 60; /* length */
offset++;
*(p + offset) = 5; /* snum */
offset++;
*(p + offset) = 1; /* stype */
offset++;
offset += cops_constructgatespec(&gs, p + offset);
return(offset);
}
static int cops_getmsg (int sfd, struct copsmsg *recmsg)
{
int len, lent;
char buf[COPS_HEADER_SIZE];
struct pktcobj *pobject = NULL;
uint16_t *ubuf = (uint16_t *) buf;
recmsg->msg = NULL;
recmsg->object = NULL;
len = recv(sfd, buf, COPS_HEADER_SIZE, MSG_DONTWAIT);
if (len < COPS_HEADER_SIZE) {
return len;
}
recmsg->verflag = *buf;
recmsg->opcode = *(buf + 1);
recmsg->clienttype = ntohs(*((uint16_t *) (buf + 2)));
recmsg->length = ntohl(*((uint32_t *) (buf + 4)));
/* Eg KA msg*/
if (recmsg->clienttype != 0x8008 ) {
if (!(recmsg->msg = malloc(recmsg->length - COPS_HEADER_SIZE))) {
return -1;
}
lent = recv(sfd, recmsg->msg, recmsg->length - COPS_HEADER_SIZE, MSG_DONTWAIT);
if (lent < recmsg->length - COPS_HEADER_SIZE) {
return lent;
}
len += len;
} else {
/* PacketCable Objects */
while (len < recmsg->length) {
if (len == COPS_HEADER_SIZE) {
/* 1st round */
if (!(recmsg->object = malloc(sizeof(struct pktcobj)))) {
return -1;
}
pobject = recmsg->object;
} else {
if (!(pobject->next = malloc(sizeof(struct pktcobj)))) {
return -1;
}
pobject = pobject->next;
}
pobject->next = NULL;
lent = recv(sfd, buf, COPS_OBJECT_HEADER_SIZE, MSG_DONTWAIT);
if (lent < COPS_OBJECT_HEADER_SIZE) {
ast_debug(3, "Too short object header len: %i\n", lent);
return lent;
}
len += lent;
pobject->length = ntohs(*ubuf);
pobject->cnum = *(buf + 2);
pobject->ctype = *(buf + 3);
if (!(pobject->contents = malloc(pobject->length - COPS_OBJECT_HEADER_SIZE))) {
return -1;
}
lent = recv(sfd, pobject->contents, pobject->length - COPS_OBJECT_HEADER_SIZE, MSG_DONTWAIT);
if (lent < pobject->length - COPS_OBJECT_HEADER_SIZE) {
ast_debug(3, "Too short object content len: %i\n", lent);
return lent;
}
len += lent;
}
}
return len;
}
static int cops_sendmsg (int sfd, struct copsmsg * sendmsg)
{
char *buf;
int bufpos;
struct pktcobj *pobject;
if (sfd < 0) {
return -1;
}
ast_debug(3, "COPS: sending opcode: %i len: %i\n", sendmsg->opcode, sendmsg->length);
if (sendmsg->length < COPS_HEADER_SIZE) {
ast_log(LOG_WARNING, "COPS: invalid msg size!!!\n");
return -1;
}
if (!(buf = malloc((size_t) sendmsg->length))) {
return -1;
}
*buf = sendmsg->verflag ;
*(buf + 1) = sendmsg->opcode;
*((uint16_t *)(buf + 2)) = htons(sendmsg->clienttype);
*((uint32_t *)(buf + 4)) = htonl(sendmsg->length);
if (sendmsg->msg != NULL) {
memcpy(buf + COPS_HEADER_SIZE, sendmsg->msg, sendmsg->length - COPS_HEADER_SIZE);
} else if (sendmsg->object != NULL) {
bufpos = 8;
pobject = sendmsg->object;
while(pobject != NULL) {
ast_debug(3, "COPS: Sending Object : cnum: %i ctype %i len: %i\n", pobject->cnum, pobject->ctype, pobject->length);
if (sendmsg->length < bufpos + pobject->length) {
ast_log(LOG_WARNING, "COPS: Invalid msg size len: %i objectlen: %i\n", sendmsg->length, pobject->length);
free(buf);
return -1;
}
*(uint16_t *) (buf + bufpos) = htons(pobject->length);
*(buf + bufpos + 2) = pobject->cnum;
*(buf + bufpos + 3) = pobject->ctype;
if (sendmsg->length < pobject->length + bufpos) {
ast_log(LOG_WARNING, "COPS: Error sum of object len more the msg len %i < %i\n", sendmsg->length, pobject->length + bufpos);
free(buf);
return -1;
}
memcpy((buf + bufpos + 4), pobject->contents, pobject->length - 4);
bufpos += pobject->length;
pobject = pobject->next;
}
}
errno = 0;
#ifdef HAVE_MSG_NOSIGNAL
#define SENDFLAGS MSG_NOSIGNAL | MSG_DONTWAIT
#else
#define SENDFLAGS MSG_DONTWAIT
#endif
if (send(sfd, buf, sendmsg->length, SENDFLAGS) == -1) {
ast_log(LOG_WARNING, "COPS: Send failed errno=%i\n", errno);
free(buf);
return -2;
}
#undef SENDFLAGS
free(buf);
return 0;
}
static void cops_freemsg(struct copsmsg *p)
{
struct pktcobj *pnext;
free(p->msg);
p->msg = NULL;
while (p->object != NULL) {
pnext = p->object->next;
ast_free(p->object->contents);
p->object->contents = NULL;
ast_free(p->object);
p->object = pnext;
}
p->object = NULL;
}
struct cops_gate * AST_OPTIONAL_API_NAME(ast_pktccops_gate_alloc)(int cmd,
struct cops_gate *gate, uint32_t mta, uint32_t actcount, float bitrate,
uint32_t psize, uint32_t ssip, uint16_t ssport,
int (* const got_dq_gi) (struct cops_gate *gate),
int (* const gate_remove) (struct cops_gate *gate))
{
while (pktcreload) {
sched_yield();
}
if (cmd == GATE_SET_HAVE_GATEID && gate) {
ast_debug(3, "------- gate modify gateid 0x%x ssip: 0x%x\n", gate->gateid, ssip);
/* TODO implement it */
ast_log(LOG_WARNING, "Modify GateID not implemented\n");
}
if ((gate = cops_gate_cmd(cmd, NULL, cops_trid++, mta, actcount, bitrate, psize, ssip, ssport, gate))) {
ast_debug(3, "COPS: Allocating gate for mta: 0x%x\n", mta);
gate->got_dq_gi = got_dq_gi;
gate->gate_remove = gate_remove;
return(gate);
} else {
ast_debug(3, "COPS: Couldn't allocate gate for mta: 0x%x\n", mta);
return NULL;
}
}
static struct cops_gate *cops_gate_cmd(int cmd, struct cops_cmts *cmts,
uint16_t trid, uint32_t mta, uint32_t actcount, float bitrate,
uint32_t psize, uint32_t ssip, uint16_t ssport, struct cops_gate *gate)
{
struct copsmsg *gateset;
struct cops_gate *new;
struct cops_ippool *ippool;
if (cmd == GATE_DEL) {
if (gate == NULL) {
return NULL;
} else {
cmts = gate->cmts;
}
}
if (!cmts) {
AST_LIST_LOCK(&ippool_list);
AST_LIST_TRAVERSE(&ippool_list, ippool, list) {
if (mta >= ippool->start && mta <= ippool->stop) {
cmts = ippool->cmts;
break;
}
}
AST_LIST_UNLOCK(&ippool_list);
if (!cmts) {
ast_log(LOG_WARNING, "COPS: couldn't find cmts for mta: 0x%x\n", mta);
return NULL;
}
if (cmts->sfd < 0) {
ast_log(LOG_WARNING, "CMTS: %s not connected\n", cmts->name);
return NULL;
}
}
if (cmd == GATE_SET) {
new = ast_calloc(1, sizeof(*new));
new->gateid = 0;
new->trid = trid;
new->mta = mta;
new->state = GATE_ALLOC_PROGRESS;
new->checked = time(NULL);
new->allocated = time(NULL);
new->cmts = cmts;
new->got_dq_gi = NULL;
new->gate_remove = NULL;
new->gate_open = NULL;
new->tech_pvt = NULL;
new->deltimer = 0;
AST_LIST_LOCK(&gate_list);
AST_LIST_INSERT_HEAD(&gate_list, new, list);
AST_LIST_UNLOCK(&gate_list);
gate = new;
} else {
if (gate) {
gate->trid = trid;
}
}
gate->in_transaction = time(NULL);
if (!(gateset = malloc(sizeof(struct copsmsg)))) {
free(gateset);
return NULL;
}
gateset->msg = NULL;
gateset->verflag = 0x10;
gateset->opcode = 2; /* Decision */
gateset->clienttype = 0x8008; /* =PacketCable */
/* Handle object */
gateset->object = malloc(sizeof(struct pktcobj));
if (!gateset->object) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
gateset->object->length = COPS_OBJECT_HEADER_SIZE + 4;
gateset->object->cnum = 1; /* Handle */
gateset->object->ctype = 1; /* client */
if (!(gateset->object->contents = malloc(sizeof(uint32_t)))) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
*((uint32_t *) gateset->object->contents) = htonl(cmts->handle);
/* Context Object */
if (!(gateset->object->next = malloc(sizeof(struct pktcobj)))) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
gateset->object->next->length = COPS_OBJECT_HEADER_SIZE + 4;
gateset->object->next->cnum = 2; /* Context */
gateset->object->next->ctype = 1; /* Context */
if (!(gateset->object->next->contents = malloc(sizeof(uint32_t)))) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
*((uint32_t *) gateset->object->next->contents) = htonl(0x00080000); /* R-Type = 8 configuration request, M-Type = 0 */
/* Decision Object: Flags */
if (!(gateset->object->next->next = malloc(sizeof(struct pktcobj)))) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
gateset->object->next->next->length = COPS_OBJECT_HEADER_SIZE + 4;
gateset->object->next->next->cnum = 6; /* Decision */
gateset->object->next->next->ctype = 1; /* Flags */
if (!(gateset->object->next->next->contents = malloc(sizeof(uint32_t)))) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
*((uint32_t *) gateset->object->next->next->contents) = htonl(0x00010001); /* Install, Trigger Error */
/* Decision Object: Data */
if (!(gateset->object->next->next->next = malloc(sizeof(struct pktcobj)))) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
gateset->object->next->next->next->length = COPS_OBJECT_HEADER_SIZE + ((cmd != GATE_INFO && cmd != GATE_DEL) ? GATE_SET_OBJ_SIZE : GATE_INFO_OBJ_SIZE) + ((cmd == GATE_SET_HAVE_GATEID) ? GATEID_OBJ_SIZE : 0);
gateset->object->next->next->next->cnum = 6; /* Decision */
gateset->object->next->next->next->ctype = 4; /* Decision Data */
gateset->object->next->next->next->contents = malloc(((cmd != GATE_INFO && cmd != GATE_DEL) ? GATE_SET_OBJ_SIZE : GATE_INFO_OBJ_SIZE) + ((cmd == GATE_SET_HAVE_GATEID) ? GATEID_OBJ_SIZE : 0));
if (!gateset->object->next->next->next->contents) {
cops_freemsg(gateset);
free(gateset);
return NULL;
}
gateset->object->next->next->next->next = NULL;
gateset->length = COPS_HEADER_SIZE + gateset->object->length + gateset->object->next->length + gateset->object->next->next->length + gateset->object->next->next->next->length;
if ((cmd == GATE_INFO || cmd == GATE_SET_HAVE_GATEID || cmd == GATE_DEL) && gate) {
ast_debug(1, "Construct gate with gateid: 0x%x\n", gate->gateid);
cops_construct_gate(cmd, gateset->object->next->next->next->contents, trid, mta, actcount, bitrate, psize, ssip, ssport, gate->gateid, cmts);
} else {
ast_debug(1, "Construct new gate\n");
cops_construct_gate(cmd, gateset->object->next->next->next->contents, trid, mta, actcount, bitrate, psize, ssip, ssport, 0, cmts);
}
if (pktccopsdebug) {
ast_debug(3, "send cmd\n");
}
cops_sendmsg(cmts->sfd, gateset);
cops_freemsg(gateset);
free(gateset);
return gate;
}
static int cops_connect(char *host, char *port)
{
int s, sfd = -1, flags;
struct addrinfo hints;
struct addrinfo *rp;
struct addrinfo *result;
#ifdef HAVE_SO_NOSIGPIPE
int trueval = 1;
#endif
memset(&hints, 0, sizeof(struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = 0;
hints.ai_protocol = 0;
s = getaddrinfo(host, port, &hints, &result);
if (s != 0) {
ast_log(LOG_WARNING, "COPS: getaddrinfo: %s\n", gai_strerror(s));
return -1;
}
for (rp = result; rp != NULL; rp = rp->ai_next) {
sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (sfd == -1) {
ast_log(LOG_WARNING, "Failed socket\n");
}
flags = fcntl(sfd, F_GETFL);
fcntl(sfd, F_SETFL, flags | O_NONBLOCK);
#ifdef HAVE_SO_NOSIGPIPE
setsockopt(sfd, SOL_SOCKET, SO_NOSIGPIPE, &trueval, sizeof(trueval));
#endif
connect(sfd, rp->ai_addr, rp->ai_addrlen);
if (sfd == -1) {
ast_log(LOG_WARNING, "Failed connect\n");
}
}
freeaddrinfo(result);
ast_debug(3, "Connecting to cmts: %s:%s\n", host, port);
return(sfd);
}
#define PKTCCOPS_DESTROY_CURRENT_GATE \
AST_LIST_REMOVE_CURRENT(list); \
if (gate->gate_remove) { \
gate->gate_remove(gate); \
} \
ast_free(gate);
static void *do_pktccops(void *data)
{
int res, nfds, len;
struct copsmsg *recmsg, *sendmsg;
struct copsmsg recmsgb, sendmsgb;
struct pollfd *pfds = NULL, *tmp;
struct pktcobj *pobject;
struct cops_cmts *cmts;
struct cops_gate *gate;
char *sobjp;
uint16_t snst, sobjlen, scommand, recvtrid, actcount, reason, subreason;
uint32_t gateid, subscrid, pktcerror;
time_t last_exec = 0;
recmsg = &recmsgb;
sendmsg = &sendmsgb;
ast_debug(3, "COPS: thread started\n");
for (;;) {
ast_free(pfds);
pfds = NULL;
nfds = 0;
AST_LIST_LOCK(&cmts_list);
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
if (last_exec != time(NULL)) {
if (cmts->state == 2 && cmts->katimer + cmts->keepalive < time(NULL)) {
ast_log(LOG_WARNING, "KA timer (%is) expired cmts: %s\n", cmts->keepalive, cmts->name);
cmts->state = 0;
cmts->katimer = -1;
close(cmts->sfd);
cmts->sfd = -1;
}
}
if (cmts->sfd > 0) {
if (!(tmp = ast_realloc(pfds, (nfds + 1) * sizeof(*pfds)))) {
continue;
}
pfds = tmp;
pfds[nfds].fd = cmts->sfd;
pfds[nfds].events = POLLIN;
pfds[nfds].revents = 0;
nfds++;
} else {
cmts->sfd = cops_connect(cmts->host, cmts->port);
if (cmts->sfd > 0) {
cmts->state = 1;
if (cmts->sfd > 0) {
if (!(tmp = ast_realloc(pfds, (nfds + 1) * sizeof(*pfds)))) {
continue;
}
pfds = tmp;
pfds[nfds].fd = cmts->sfd;
pfds[nfds].events = POLLIN;
pfds[nfds].revents = 0;
nfds++;
}
}
}
}
AST_LIST_UNLOCK(&cmts_list);
if (last_exec != time(NULL)) {
last_exec = time(NULL);
AST_LIST_LOCK(&gate_list);
AST_LIST_TRAVERSE_SAFE_BEGIN(&gate_list, gate, list) {
if (gate) {
if (gate->deltimer && gate->deltimer < time(NULL)) {
gate->deltimer = time(NULL) + 5;
gate->trid = cops_trid++;
cops_gate_cmd(GATE_DEL, gate->cmts, gate->trid, 0, 0, 0, 0, 0, 0, gate);
ast_debug(3, "COPS: requested Gate-Del: CMTS: %s gateid: 0x%x\n", (gate->cmts) ? gate->cmts->name : "null", gate->gateid);
}
if (time(NULL) - gate->checked > gatetimeout) {
ast_debug(3, "COPS: remove from list GATE, CMTS: %s gateid: 0x%x\n", (gate->cmts) ? gate->cmts->name : "null", gate->gateid);
gate->state = GATE_TIMEOUT;
PKTCCOPS_DESTROY_CURRENT_GATE;
} else if (time(NULL) - gate->checked > gateinfoperiod && (gate->state == GATE_ALLOCATED || gate->state == GATE_OPEN)) {
if (gate->cmts && (!gate->in_transaction || ( gate->in_transaction + 5 ) < time(NULL))) {
gate->trid = cops_trid++;
ast_debug(3, "COPS: Gate-Info send to CMTS: %s gateid: 0x%x\n", gate->cmts->name, gate->gateid);
cops_gate_cmd(GATE_INFO, gate->cmts, gate->trid, gate->mta, 0, 0, 0, 0, 0, gate);
}
}
}
}
AST_LIST_TRAVERSE_SAFE_END;
AST_LIST_UNLOCK(&gate_list);
}
if (pktcreload == 2) {
pktcreload = 0;
}
if ((res = ast_poll(pfds, nfds, 1000))) {
AST_LIST_LOCK(&cmts_list);
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
int idx;
if ((idx = ast_poll_fd_index(pfds, nfds, cmts->sfd)) > -1 && (pfds[idx].revents & POLLIN)) {
len = cops_getmsg(cmts->sfd, recmsg);
if (len > 0) {
ast_debug(3, "COPS: got from %s:\n Header: versflag=0x%.2x opcode=%i clienttype=0x%.4x msglength=%i\n",
cmts->name, recmsg->verflag, recmsg->opcode, recmsg->clienttype, recmsg->length);
if (recmsg->object != NULL) {
pobject = recmsg->object;
while (pobject != NULL) {
ast_debug(3, " OBJECT: length=%i cnum=%i ctype=%i\n", pobject->length, pobject->cnum, pobject->ctype);
if (recmsg->opcode == 1 && pobject->cnum == 1 && pobject->ctype == 1 ) {
cmts->handle = ntohl(*((uint32_t *) pobject->contents));
ast_debug(3, " REQ client handle: %i\n", cmts->handle);
cmts->state = 2;
cmts->katimer = time(NULL);
} else if (pobject->cnum == 9 && pobject->ctype == 1) {
sobjp = pobject->contents;
subscrid = 0;
recvtrid = 0;
scommand = 0;
pktcerror = 0;
actcount = 0;
gateid = 0;
reason = 0;
subreason = 0;
while (sobjp < (pobject->contents + pobject->length - 4)) {
sobjlen = ntohs(*((uint16_t *) sobjp));
snst = ntohs(*((uint16_t *) (sobjp + 2)));
ast_debug(3, " S-Num S-type: 0x%.4x len: %i\n", snst, sobjlen);
if (snst == 0x0101 ) {
recvtrid = ntohs(*((uint16_t *) (sobjp + 4)));
scommand = ntohs(*((uint16_t *) (sobjp + 6)));
ast_debug(3, " Transaction Identifier command: %i trid %i\n", scommand, recvtrid);
} else if (snst == 0x0201) {
subscrid = ntohl(*((uint32_t *) (sobjp + 4)));
ast_debug(3, " Subscriber ID: 0x%.8x\n", subscrid);
} else if (snst == 0x0301) {
gateid = ntohl(*((uint32_t *) (sobjp + 4)));
ast_debug(3, " Gate ID: 0x%x 0x%.8x\n", gateid, gateid);
} else if (snst == 0x0401) {
actcount = ntohs(*((uint16_t *) (sobjp + 6)));
ast_debug(3, " Activity Count: %i\n", actcount);
} else if (snst == 0x0901) {
pktcerror = ntohl(*((uint32_t *) (sobjp + 4)));
ast_debug(3, " PKTC Error: 0x%.8x\n", pktcerror);
} else if (snst == 0x0d01) {
reason = ntohs(*((uint16_t *) (sobjp + 4)));
subreason = ntohs(*((uint16_t *) (sobjp + 6)));
ast_debug(3, " Reason: %u Subreason: %u\n", reason, subreason);
}
sobjp += sobjlen;
if (!sobjlen)
break;
}
if (scommand == PKTCCOPS_SCOMMAND_GATE_CLOSE || scommand == PKTCCOPS_SCOMMAND_GATE_OPEN) {
AST_LIST_LOCK(&gate_list);
AST_LIST_TRAVERSE_SAFE_BEGIN(&gate_list, gate, list) {
if (gate->cmts == cmts && gate->gateid == gateid) {
if (scommand == PKTCCOPS_SCOMMAND_GATE_CLOSE && gate->state != GATE_CLOSED && gate->state != GATE_CLOSED_ERR ) {
ast_debug(3, "COPS Gate Close Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
if (subreason) {
gate->state = GATE_CLOSED_ERR;
PKTCCOPS_DESTROY_CURRENT_GATE;
} else {
gate->state = GATE_CLOSED;
PKTCCOPS_DESTROY_CURRENT_GATE;
}
break;
} else if (scommand == PKTCCOPS_SCOMMAND_GATE_OPEN && gate->state == GATE_ALLOCATED) {
ast_debug(3, "COPS Gate Open Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
gate->state = GATE_OPEN;
if (gate->gate_open) {
ast_debug(3, "Calling GATE-OPEN callback function\n");
gate->gate_open(gate);
gate->gate_open = NULL;
}
break;
}
}
}
AST_LIST_TRAVERSE_SAFE_END;
AST_LIST_UNLOCK(&gate_list);
} else if (scommand == PKTCCOPS_SCOMMAND_GATE_SET_ACK || scommand == PKTCCOPS_SCOMMAND_GATE_SET_ERR || scommand == PKTCCOPS_SCOMMAND_GATE_INFO_ACK || scommand == PKTCCOPS_SCOMMAND_GATE_INFO_ERR || scommand == PKTCCOPS_SCOMMAND_GATE_DELETE_ACK) {
AST_LIST_LOCK(&gate_list);
AST_LIST_TRAVERSE_SAFE_BEGIN(&gate_list, gate, list) {
if (gate->cmts == cmts && gate->trid == recvtrid) {
gate->gateid = gateid;
gate->checked = time(NULL);
if (scommand == PKTCCOPS_SCOMMAND_GATE_SET_ACK) {
ast_debug(3, "COPS Gate Set Ack Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
gate->state = GATE_ALLOCATED;
if (gate->got_dq_gi) {
gate->got_dq_gi(gate);
gate->got_dq_gi = NULL;
}
} else if (scommand == PKTCCOPS_SCOMMAND_GATE_SET_ERR) {
ast_debug(3, "COPS Gate Set Error TrId: %i ErrorCode: 0x%.8x CMTS: %s\n ", recvtrid, pktcerror, cmts->name);
gate->state = GATE_ALLOC_FAILED;
if (gate->got_dq_gi) {
gate->got_dq_gi(gate);
gate->got_dq_gi = NULL;
}
PKTCCOPS_DESTROY_CURRENT_GATE;
} else if (scommand == PKTCCOPS_SCOMMAND_GATE_INFO_ACK) {
ast_debug(3, "COPS Gate Info Ack Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
} else if (scommand == PKTCCOPS_SCOMMAND_GATE_INFO_ERR) {
ast_debug(3, "COPS Gate Info Error Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
gate->state = GATE_ALLOC_FAILED;
PKTCCOPS_DESTROY_CURRENT_GATE;
} else if (scommand == PKTCCOPS_SCOMMAND_GATE_DELETE_ACK) {
ast_debug(3, "COPS Gate Deleted Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
gate->state = GATE_DELETED;
PKTCCOPS_DESTROY_CURRENT_GATE;
}
gate->in_transaction = 0;
break;
}
}
AST_LIST_TRAVERSE_SAFE_END;
AST_LIST_UNLOCK(&gate_list);
}
}
pobject = pobject->next;
}
}
if (recmsg->opcode == 6 && recmsg->object && recmsg->object->cnum == 11 && recmsg->object->ctype == 1) {
ast_debug(3, "COPS: Client open %s\n", cmts->name);
sendmsg->msg = NULL;
sendmsg->verflag = 0x10;
sendmsg->opcode = 7; /* Client Accept */
sendmsg->clienttype = 0x8008; /* =PacketCable */
sendmsg->length = COPS_HEADER_SIZE + COPS_OBJECT_HEADER_SIZE + 4;
sendmsg->object = malloc(sizeof(struct pktcobj));
sendmsg->object->length = 4 + COPS_OBJECT_HEADER_SIZE;
sendmsg->object->cnum = 10; /* keppalive timer*/
sendmsg->object->ctype = 1;
sendmsg->object->contents = malloc(sizeof(uint32_t));
*((uint32_t *) sendmsg->object->contents) = htonl(cmts->keepalive & 0x0000ffff);
sendmsg->object->next = NULL;
cops_sendmsg(cmts->sfd, sendmsg);
cops_freemsg(sendmsg);
} else if (recmsg->opcode == 9) {
ast_debug(3, "COPS: Keepalive Request got echoing back %s\n", cmts->name);
cops_sendmsg(cmts->sfd, recmsg);
cmts->state = 2;
cmts->katimer = time(NULL);
}
}
if (len <= 0) {
ast_debug(3, "COPS: lost connection to %s\n", cmts->name);
close(cmts->sfd);
cmts->sfd = -1;
cmts->state = 0;
}
cops_freemsg(recmsg);
}
}
AST_LIST_UNLOCK(&cmts_list);
}
if (pktcreload) {
ast_debug(3, "Reloading pktccops...\n");
AST_LIST_LOCK(&gate_list);
AST_LIST_LOCK(&cmts_list);
pktccops_unregister_ippools();
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
cmts->need_delete = 1;
}
load_pktccops_config();
AST_LIST_TRAVERSE_SAFE_BEGIN(&cmts_list, cmts, list) {
if (cmts && cmts->need_delete) {
AST_LIST_TRAVERSE(&gate_list, gate, list) {
if (gate->cmts == cmts) {
ast_debug(3, "Null gate %s\n", gate->cmts->name);
gate->cmts = NULL;
}
gate->in_transaction = 0;
}
AST_LIST_UNLOCK(&gate_list);
ast_debug(3, "removing cmts: %s\n", cmts->name);
if (cmts->sfd > 0) {
close(cmts->sfd);
}
AST_LIST_REMOVE_CURRENT(list);
free(cmts);
}
}
AST_LIST_TRAVERSE_SAFE_END;
AST_LIST_UNLOCK(&cmts_list);
AST_LIST_UNLOCK(&gate_list);
pktcreload = 2;
}
pthread_testcancel();
}
return NULL;
}
static int restart_pktc_thread(void)
{
if (pktccops_thread == AST_PTHREADT_STOP) {
return 0;
}
if (ast_mutex_lock(&pktccops_lock)) {
ast_log(LOG_WARNING, "Unable to lock pktccops\n");
return -1;
}
if (pktccops_thread == pthread_self()) {
ast_mutex_unlock(&pktccops_lock);
ast_log(LOG_WARNING, "Cannot kill myself\n");
return -1;
}
if (pktccops_thread != AST_PTHREADT_NULL) {
/* Wake up the thread */
pthread_kill(pktccops_thread, SIGURG);
} else {
/* Start a new monitor */
if (ast_pthread_create_background(&pktccops_thread, NULL, do_pktccops, NULL) < 0) {
ast_mutex_unlock(&pktccops_lock);
ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
return -1;
}
}
ast_mutex_unlock(&pktccops_lock);
return 0;
}
static int load_pktccops_config(void)
{
static char *cfg = "res_pktccops.conf";
struct ast_config *config;
struct ast_variable *v;
struct cops_cmts *cmts;
struct cops_ippool *new_ippool;
const char *host, *cat, *port;
int sfd, update;
int res = 0;
uint16_t t1_temp, t7_temp, t8_temp;
uint32_t keepalive_temp;
unsigned int a,b,c,d,e,f,g,h;
struct ast_flags config_flags = {0};
if (!(config = ast_config_load(cfg, config_flags))) {
ast_log(LOG_WARNING, "Unable to load config file res_pktccops.conf\n");
return -1;
}
for (cat = ast_category_browse(config, NULL); cat; cat = ast_category_browse(config, cat)) {
if (!strcmp(cat, "general")) {
for (v = ast_variable_browse(config, cat); v; v = v->next) {
if (!strcasecmp(v->name, "t1")) {
t1 = atoi(v->value);
} else if (!strcasecmp(v->name, "t7")) {
t7 = atoi(v->value);
} else if (!strcasecmp(v->name, "t8")) {
t8 = atoi(v->value);
} else if (!strcasecmp(v->name, "keepalive")) {
keepalive = atoi(v->value);
} else if (!strcasecmp(v->name, "gateinfoperiod")) {
gateinfoperiod = atoi(v->value);
} else if (!strcasecmp(v->name, "gatetimeout")) {
gatetimeout = atoi(v->value);
} else {
ast_log(LOG_WARNING, "Unkown option %s in general section of res_ptkccops.conf\n", v->name);
}
}
} else {
/* Defaults */
host = NULL;
port = NULL;
sfd = 0;
t1_temp = t1;
t7_temp = t7;
t8_temp = t8;
keepalive_temp = keepalive;
for (v = ast_variable_browse(config, cat); v; v = v->next) {
if (!strcasecmp(v->name, "host")) {
host = v->value;
} else if (!strcasecmp(v->name, "port")) {
port = v->value;
} else if (!strcasecmp(v->name, "t1")) {
t1_temp = atoi(v->value);
} else if (!strcasecmp(v->name, "t7")) {
t7_temp = atoi(v->value);
} else if (!strcasecmp(v->name, "t8")) {
t8_temp = atoi(v->value);
} else if (!strcasecmp(v->name, "keepalive")) {
keepalive_temp = atoi(v->value);
} else if (!strcasecmp(v->name, "pool")) {
/* we weill parse it in 2nd round */
} else {
ast_log(LOG_WARNING, "Unkown option %s in res_ptkccops.conf\n", v->name);
}
}
update = 0;
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
if (!strcmp(cmts->name, cat)) {
update = 1;
break;
}
}
if (!update) {
cmts = ast_calloc(1, sizeof(*cmts));
if (!cmts) {
res = -1;
break;
}
AST_LIST_INSERT_HEAD(&cmts_list, cmts, list);
}
if (cat) {
ast_copy_string(cmts->name, cat, sizeof(cmts->name));
}
if (host) {
ast_copy_string(cmts->host, host, sizeof(cmts->host));
}
if (port) {
ast_copy_string(cmts->port, port, sizeof(cmts->port));
} else {
ast_copy_string(cmts->port, DEFAULT_COPS_PORT, sizeof(cmts->port));
}
cmts->t1 = t1_temp;
cmts->t7 = t7_temp;
cmts->t8 = t8_temp;
cmts->keepalive = keepalive_temp;
if (!update) {
cmts->state = 0;
cmts->sfd = -1;
}
cmts->need_delete = 0;
for (v = ast_variable_browse(config, cat); v; v = v->next) {
/* parse ipppol when we have cmts ptr */
if (!strcasecmp(v->name, "pool")) {
if (sscanf(v->value, "%3u.%3u.%3u.%3u %3u.%3u.%3u.%3u", &a, &b, &c, &d, &e, &f, &g, &h) == 8) {
new_ippool = ast_calloc(1, sizeof(*new_ippool));
if (!new_ippool) {
res = -1;
break;
}
new_ippool->start = a << 24 | b << 16 | c << 8 | d;
new_ippool->stop = e << 24 | f << 16 | g << 8 | h;
new_ippool->cmts = cmts;
pktccops_add_ippool(new_ippool);
} else {
ast_log(LOG_WARNING, "Invalid ip pool format in res_pktccops.conf\n");
}
}
}
}
}
ast_config_destroy(config);
return res;
}
static char *pktccops_show_cmtses(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct cops_cmts *cmts;
char statedesc[16];
int katimer;
switch(cmd) {
case CLI_INIT:
e->command = "pktccops show cmtses";
e->usage =
"Usage: pktccops show cmtses\n"
" List PacketCable COPS CMTSes.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
ast_cli(a->fd, "%-16s %-24s %-12s %7s\n", "Name ", "Host ", "Status ", "KA timer ");
ast_cli(a->fd, "%-16s %-24s %-12s %7s\n", "------------", "--------------------", "----------", "-----------");
AST_LIST_LOCK(&cmts_list);
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
katimer = -1;
if (cmts->state == 2) {
ast_copy_string(statedesc, "Connected", sizeof(statedesc));
katimer = (int) (time(NULL) - cmts->katimer);
} else if (cmts->state == 1) {
ast_copy_string(statedesc, "Connecting", sizeof(statedesc));
} else {
ast_copy_string(statedesc, "N/A", sizeof(statedesc));
}
ast_cli(a->fd, "%-16s %-15s:%-8s %-12s %-7d\n", cmts->name, cmts->host, cmts->port, statedesc, katimer);
}
AST_LIST_UNLOCK(&cmts_list);
return CLI_SUCCESS;
}
static char *pktccops_show_gates(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct cops_gate *gate;
char state_desc[16];
switch(cmd) {
case CLI_INIT:
e->command = "pktccops show gates";
e->usage =
"Usage: pktccops show gates\n"
" List PacketCable COPS GATEs.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
ast_cli(a->fd, "%-16s %-12s %-12s %-10s %-10s %-10s\n" ,"CMTS", "Gate-Id","MTA", "Status", "AllocTime", "CheckTime");
ast_cli(a->fd, "%-16s %-12s %-12s %-10s %-10s %-10s\n" ,"--------------" ,"----------", "----------", "--------", "--------", "--------\n");
AST_LIST_LOCK(&cmts_list);
AST_LIST_LOCK(&gate_list);
AST_LIST_TRAVERSE(&gate_list, gate, list) {
if (gate->state == GATE_ALLOC_FAILED) {
ast_copy_string(state_desc, "Failed", sizeof(state_desc));
} else if (gate->state == GATE_ALLOC_PROGRESS) {
ast_copy_string(state_desc, "In Progress", sizeof(state_desc));
} else if (gate->state == GATE_ALLOCATED) {
ast_copy_string(state_desc, "Allocated", sizeof(state_desc));
} else if (gate->state == GATE_CLOSED) {
ast_copy_string(state_desc, "Closed", sizeof(state_desc));
} else if (gate->state == GATE_CLOSED_ERR) {
ast_copy_string(state_desc, "ClosedErr", sizeof(state_desc));
} else if (gate->state == GATE_OPEN) {
ast_copy_string(state_desc, "Open", sizeof(state_desc));
} else if (gate->state == GATE_DELETED) {
ast_copy_string(state_desc, "Deleted", sizeof(state_desc));
} else {
ast_copy_string(state_desc, "N/A", sizeof(state_desc));
}
ast_cli(a->fd, "%-16s 0x%.8x 0x%08x %-10s %10i %10i %u\n", (gate->cmts) ? gate->cmts->name : "null" , gate->gateid, gate->mta,
state_desc, (int) (time(NULL) - gate->allocated), (gate->checked) ? (int) (time(NULL) - gate->checked) : 0, (unsigned int) gate->in_transaction);
}
AST_LIST_UNLOCK(&cmts_list);
AST_LIST_UNLOCK(&gate_list);
return CLI_SUCCESS;
}
static char *pktccops_show_pools(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
struct cops_ippool *ippool;
char start[32];
char stop[32];
switch(cmd) {
case CLI_INIT:
e->command = "pktccops show pools";
e->usage =
"Usage: pktccops show pools\n"
" List PacketCable COPS ip pools of MTAs.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
ast_cli(a->fd, "%-16s %-18s %-7s\n", "Start ", "Stop ", "CMTS ");
ast_cli(a->fd, "%-16s %-18s %-7s\n", "----------", "----------", "--------");
AST_LIST_LOCK(&ippool_list);
AST_LIST_TRAVERSE(&ippool_list, ippool, list) {
snprintf(start, sizeof(start), "%3u.%3u.%3u.%3u", ippool->start >> 24, (ippool->start >> 16) & 0x000000ff, (ippool->start >> 8) & 0x000000ff, ippool->start & 0x000000ff);
snprintf(stop, sizeof(stop), "%3u.%3u.%3u.%3u", ippool->stop >> 24, (ippool->stop >> 16) & 0x000000ff, (ippool->stop >> 8) & 0x000000ff, ippool->stop & 0x000000ff);
ast_cli(a->fd, "%-16s %-18s %-16s\n", start, stop, ippool->cmts->name);
}
AST_LIST_UNLOCK(&ippool_list);
return CLI_SUCCESS;
}
static char *pktccops_gatedel(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
int found = 0;
int trid;
uint32_t gateid;
struct cops_gate *gate;
struct cops_cmts *cmts;
switch (cmd) {
case CLI_INIT:
e->command = "pktccops gatedel";
e->usage =
"Usage: pktccops gatedel <cmts> <gateid>\n"
" Send Gate-Del to cmts.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc < 4)
return CLI_SHOWUSAGE;
AST_LIST_LOCK(&cmts_list);
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
if (!strcmp(cmts->name, a->argv[2])) {
ast_cli(a->fd, "Found cmts: %s\n", cmts->name);
found = 1;
break;
}
}
AST_LIST_UNLOCK(&cmts_list);
if (!found)
return CLI_SHOWUSAGE;
trid = cops_trid++;
if (!sscanf(a->argv[3], "%x", &gateid)) {
ast_cli(a->fd, "bad gate specification (%s)\n", a->argv[3]);
return CLI_SHOWUSAGE;
}
found = 0;
AST_LIST_LOCK(&gate_list);
AST_LIST_TRAVERSE(&gate_list, gate, list) {
if (gate->gateid == gateid && gate->cmts == cmts) {
found = 1;
break;
}
}
if (!found) {
ast_cli(a->fd, "gate not found: %s\n", a->argv[3]);
return CLI_SHOWUSAGE;
}
AST_LIST_UNLOCK(&gate_list);
cops_gate_cmd(GATE_DEL, cmts, trid, 0, 0, 0, 0, 0, 0, gate);
return CLI_SUCCESS;
}
static char *pktccops_gateset(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
int foundcmts = 0;
int trid;
unsigned int an,bn,cn,dn;
uint32_t mta, ssip;
struct cops_cmts *cmts;
struct cops_gate *gate;
switch (cmd) {
case CLI_INIT:
e->command = "pktccops gateset";
e->usage =
"Usage: pktccops gateset <cmts> <mta> <acctcount> <bitrate> <packet size> <switch ip> <switch port>\n"
" Send Gate-Set to cmts.\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc < 9)
return CLI_SHOWUSAGE;
if (!strncmp(a->argv[2], "null", sizeof(a->argv[2]))) {
cmts = NULL;
} else {
AST_LIST_LOCK(&cmts_list);
AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
if (!strcmp(cmts->name, a->argv[2])) {
ast_cli(a->fd, "Found cmts: %s\n", cmts->name);
foundcmts = 1;
break;
}
}
AST_LIST_UNLOCK(&cmts_list);
if (!foundcmts) {
ast_cli(a->fd, "CMTS not found: %s\n", a->argv[2]);
return CLI_SHOWUSAGE;
}
}
trid = cops_trid++;
if (sscanf(a->argv[3], "%3u.%3u.%3u.%3u", &an, &bn, &cn, &dn) != 4) {
ast_cli(a->fd, "MTA specification (%s) does not look like an ipaddr\n", a->argv[3]);
return CLI_SHOWUSAGE;
}
mta = an << 24 | bn << 16 | cn << 8 | dn;
if (sscanf(a->argv[7], "%3u.%3u.%3u.%3u", &an, &bn, &cn, &dn) != 4) {
ast_cli(a->fd, "SSIP specification (%s) does not look like an ipaddr\n", a->argv[7]);
return CLI_SHOWUSAGE;
}
ssip = an << 24 | bn << 16 | cn << 8 | dn;
gate = cops_gate_cmd(GATE_SET, cmts, trid, mta, atoi(a->argv[4]), atof(a->argv[5]), atoi(a->argv[6]), ssip, atoi(a->argv[8]), NULL);
return CLI_SUCCESS;
}
static char *pktccops_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
{
switch (cmd) {
case CLI_INIT:
e->command = "pktccops set debug {on|off}";
e->usage =
"Usage: pktccops set debug {on|off}\n"
" Turn on/off debuging\n";
return NULL;
case CLI_GENERATE:
return NULL;
}
if (a->argc != e->args)
return CLI_SHOWUSAGE;
if (!strncasecmp(a->argv[e->args - 1], "on", 2)) {
pktccopsdebug = 1;
ast_cli(a->fd, "PktcCOPS Debugging Enabled\n");
} else if (!strncasecmp(a->argv[e->args - 1], "off", 2)) {
pktccopsdebug = 0;
ast_cli(a->fd, "PktcCOPS Debugging Disabled\n");
} else {
return CLI_SHOWUSAGE;
}
return CLI_SUCCESS;
}
static struct ast_cli_entry cli_pktccops[] = {
AST_CLI_DEFINE(pktccops_show_cmtses, "List PacketCable COPS CMTSes"),
AST_CLI_DEFINE(pktccops_show_gates, "List PacketCable COPS GATEs"),
AST_CLI_DEFINE(pktccops_show_pools, "List PacketCable MTA pools"),
AST_CLI_DEFINE(pktccops_gateset, "Send Gate-Set to cmts"),
AST_CLI_DEFINE(pktccops_gatedel, "Send Gate-Det to cmts"),
AST_CLI_DEFINE(pktccops_debug, "Enable/Disable COPS debugging")
};
static int pktccops_add_ippool(struct cops_ippool *ippool)
{
if (ippool) {
AST_LIST_LOCK(&ippool_list);
AST_LIST_INSERT_HEAD(&ippool_list, ippool, list);
AST_LIST_UNLOCK(&ippool_list);
return 0;
} else {
ast_log(LOG_WARNING, "Attempted to register NULL ippool?\n");
return -1;
}
}
static void pktccops_unregister_cmtses(void)
{
struct cops_cmts *cmts;
struct cops_gate *gate;
AST_LIST_LOCK(&cmts_list);
while ((cmts = AST_LIST_REMOVE_HEAD(&cmts_list, list))) {
if (cmts->sfd > 0) {
close(cmts->sfd);
}
free(cmts);
}
AST_LIST_UNLOCK(&cmts_list);
AST_LIST_LOCK(&gate_list);
while ((gate = AST_LIST_REMOVE_HEAD(&gate_list, list))) {
free(gate);
}
AST_LIST_UNLOCK(&gate_list);
}
static void pktccops_unregister_ippools(void)
{
struct cops_ippool *ippool;
AST_LIST_LOCK(&ippool_list);
while ((ippool = AST_LIST_REMOVE_HEAD(&ippool_list, list))) {
free(ippool);
}
AST_LIST_UNLOCK(&ippool_list);
}
static int load_module(void)
{
int res;
AST_LIST_LOCK(&cmts_list);
res = load_pktccops_config();
AST_LIST_UNLOCK(&cmts_list);
if (res == -1) {
return AST_MODULE_LOAD_DECLINE;
}
ast_cli_register_multiple(cli_pktccops, sizeof(cli_pktccops) / sizeof(struct ast_cli_entry));
restart_pktc_thread();
return 0;
}
static int unload_module(void)
{
if (!ast_mutex_lock(&pktccops_lock)) {
if ((pktccops_thread != AST_PTHREADT_NULL) && (pktccops_thread != AST_PTHREADT_STOP)) {
pthread_cancel(pktccops_thread);
pthread_kill(pktccops_thread, SIGURG);
pthread_join(pktccops_thread, NULL);
}
pktccops_thread = AST_PTHREADT_STOP;
ast_mutex_unlock(&pktccops_lock);
} else {
ast_log(LOG_ERROR, "Unable to lock the pktccops_thread\n");
return -1;
}
ast_cli_unregister_multiple(cli_pktccops, sizeof(cli_pktccops) / sizeof(struct ast_cli_entry));
pktccops_unregister_cmtses();
pktccops_unregister_ippools();
pktccops_thread = AST_PTHREADT_NULL;
return 0;
}
static int reload_module(void)
{
/* Prohibit unloading */
if (pktcreload) {
ast_log(LOG_NOTICE, "Previous reload in progress, please wait!\n");
return -1;
}
pktcreload = 1;
return 0;
}
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "PktcCOPS manager for MGCP",
.load = load_module,
.unload = unload_module,
.reload = reload_module,
);
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