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Asterisk developer's documentation


res_pktccops.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 2009, Attila Domjan
00005  *
00006  * Attila Domjan <attila.domjan.hu@gmail.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*!\file
00020  *
00021  * \brief PacketCable COPS
00022  * 
00023  * \author Attila Domjan <attila.domjan.hu@gmail.com>
00024  *
00025  * \note 
00026  * This module is an add-on to chan_mgcp. It adds support for the
00027  * PacketCable MGCP variation called NCS. Res_pktccops implements COPS
00028  * (RFC 2748), a protocol used to manage dynamic bandwith allocation in
00029  * CMTS's (HFC gateways). When you use NCS, you need to talk COPS with
00030  * the CMTS to complete the calls.
00031  */
00032 
00033 /*** MODULEINFO
00034         <defaultenabled>no</defaultenabled>
00035    <support_level>extended</support_level>
00036  ***/
00037 
00038 #include "asterisk.h"
00039 
00040 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 413586 $")
00041 
00042 #include <sys/types.h>
00043 #include <sys/socket.h>
00044 #include <fcntl.h>
00045 #include <netdb.h>
00046 #include <stdio.h>
00047 #include <stdlib.h>
00048 #include <unistd.h>
00049 #include <string.h>
00050 #include <time.h>
00051 #include <errno.h>
00052 #include <arpa/inet.h>
00053 #include <signal.h>
00054 
00055 #include "asterisk/file.h"
00056 #include "asterisk/logger.h"
00057 #include "asterisk/channel.h"
00058 #include "asterisk/config.h"
00059 #include "asterisk/options.h"
00060 #include "asterisk/pbx.h"
00061 #include "asterisk/module.h"
00062 #include "asterisk/cli.h"
00063 #include "asterisk/lock.h"
00064 #define AST_API_MODULE
00065 #include "asterisk/pktccops.h"
00066 
00067 #define DEFAULT_COPS_PORT "2126"
00068 
00069 #define COPS_HEADER_SIZE 8
00070 #define COPS_OBJECT_HEADER_SIZE 4
00071 #define GATE_SET_OBJ_SIZE 144
00072 #define GATEID_OBJ_SIZE 8
00073 #define GATE_INFO_OBJ_SIZE 24
00074 
00075 #define PKTCCOPS_SCOMMAND_GATE_ALLOC 1
00076 #define PKTCCOPS_SCOMMAND_GATE_ALLOC_ACK 2
00077 #define PKTCCOPS_SCOMMAND_GATE_ALLOC_ERR 3
00078 #define PKTCCOPS_SCOMMAND_GATE_SET 4
00079 #define PKTCCOPS_SCOMMAND_GATE_SET_ACK 5
00080 #define PKTCCOPS_SCOMMAND_GATE_SET_ERR 6
00081 #define PKTCCOPS_SCOMMAND_GATE_INFO 7
00082 #define PKTCCOPS_SCOMMAND_GATE_INFO_ACK 8
00083 #define PKTCCOPS_SCOMMAND_GATE_INFO_ERR 9
00084 #define PKTCCOPS_SCOMMAND_GATE_DELETE 10
00085 #define PKTCCOPS_SCOMMAND_GATE_DELETE_ACK 11
00086 #define PKTCCOPS_SCOMMAND_GATE_DELETE_ERR 12
00087 #define PKTCCOPS_SCOMMAND_GATE_OPEN 13
00088 #define PKTCCOPS_SCOMMAND_GATE_CLOSE 14
00089 
00090 AST_MUTEX_DEFINE_STATIC(pktccops_lock);
00091 static pthread_t pktccops_thread = AST_PTHREADT_NULL;
00092 static uint16_t cops_trid = 0;
00093 
00094 struct pktcobj {
00095    uint16_t length;
00096    unsigned char cnum;
00097    unsigned char ctype;
00098    char *contents;
00099    struct pktcobj *next; 
00100 };
00101 
00102 struct copsmsg {
00103    unsigned char verflag;
00104    unsigned char opcode;
00105    uint16_t clienttype;
00106    uint32_t length;
00107    struct pktcobj *object;
00108    char *msg; /* != NULL if not packet cable message received */
00109 };
00110 
00111 struct gatespec {
00112    int direction; /* 0-DS, 1-US */
00113    int protocolid;
00114    int flags; /* 0x00 */
00115    int sessionclass; /* normal voip: 0x01, high priority voip: 0x02, unspecified: 0x00 */
00116    uint32_t srcip;
00117    uint32_t dstip;
00118    uint16_t srcp;
00119    uint16_t dstp;
00120    int diffserv;
00121    uint16_t t1;
00122    uint16_t t7;
00123    uint16_t t8;
00124    uint32_t r; /* Token Bucket Rate */
00125    uint32_t b; /* token Bucket Size */
00126    uint32_t p; /* Peak Data Rate */
00127    uint32_t m; /* Minimum Policed Size*/
00128    uint32_t mm; /* Maximum Policed Size */
00129    uint32_t rate;
00130    uint32_t s; /* Allowable Jitter*/
00131 };
00132 
00133 
00134 struct cops_cmts {
00135    AST_LIST_ENTRY(cops_cmts) list;
00136    char name[80];
00137    char host[80];
00138    char port[80];
00139    uint16_t t1;   
00140    uint16_t t7;
00141    uint16_t t8;
00142    uint32_t keepalive;
00143 
00144    uint32_t handle;
00145    int state;
00146    time_t contime;
00147    time_t katimer;
00148    int sfd;
00149    int need_delete;
00150 };
00151 
00152 struct cops_ippool {
00153    AST_LIST_ENTRY(cops_ippool) list;
00154    uint32_t start;
00155    uint32_t stop;
00156    struct cops_cmts *cmts;
00157 };
00158 
00159 static uint16_t t1 = 250;
00160 static uint16_t t7 = 200;
00161 static uint16_t t8 = 300;
00162 static uint32_t keepalive = 60;
00163 static int pktccopsdebug = 0;
00164 static int pktcreload = 0;
00165 static int gateinfoperiod = 60;
00166 static int gatetimeout = 150;
00167 
00168 AST_LIST_HEAD_STATIC(cmts_list, cops_cmts);
00169 AST_LIST_HEAD_STATIC(ippool_list, cops_ippool);
00170 AST_LIST_HEAD_STATIC(gate_list, cops_gate);
00171 
00172 static int pktccops_add_ippool(struct cops_ippool *ippool);
00173 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);
00174 static void pktccops_unregister_ippools(void);
00175 static int load_pktccops_config(void);
00176 
00177 static uint32_t ftoieeef(float n)
00178 {
00179    uint32_t res;
00180    memcpy(&res, &n, 4);
00181    return htonl(res);
00182 }
00183 
00184 static uint16_t cops_constructgatespec(struct gatespec *gs, char *res)
00185 {
00186    if (res == NULL) {
00187       return 0;
00188    }
00189    
00190    *res = (char) gs->direction;
00191    *(res + 1) = (char) gs->protocolid;
00192    *(res + 2) = (char) gs->flags;
00193    *(res + 3) = (char) gs->sessionclass;
00194 
00195    *((uint32_t *) (res + 4)) = gs->srcip;
00196    *((uint32_t *) (res + 8)) = gs->dstip;
00197 
00198    *((uint16_t *) (res + 12)) = gs->srcp;
00199    *((uint16_t *) (res + 14)) = gs->dstp;
00200 
00201    *(res + 16) = (char) gs->diffserv;
00202    *(res + 17) = 0; /* reserved */
00203    *(res + 18) = 0; /* reserved */
00204    *(res + 19) = 0; /* reserved */
00205 
00206    *((uint16_t *) (res + 20)) = gs->t1;
00207    *(res + 22) = 0; /* reserved */
00208    *(res + 23) = 0; /* reserved */
00209 
00210    *((uint16_t *) (res + 24)) = gs->t7;
00211    *((uint16_t *) (res + 26)) = gs->t8;
00212 
00213    *((uint32_t *) (res + 28)) = gs->r;
00214    *((uint32_t *) (res + 32)) = gs->b;
00215    *((uint32_t *) (res + 36)) = gs->p;
00216    *((uint32_t *) (res + 40)) = gs->m;
00217    *((uint32_t *) (res + 44)) = gs->mm;
00218    *((uint32_t *) (res + 48)) = gs->rate;
00219    *((uint32_t *) (res + 52)) = gs->s;
00220    return 56; /* length */
00221 };
00222 
00223 static uint16_t cops_construct_gate (int cmd, char *p,  uint16_t trid,
00224       uint32_t mtahost, uint32_t actcount, float rate, uint32_t psizegateid,
00225       uint32_t ssip, uint16_t ssport, uint32_t gateid, struct cops_cmts *cmts)
00226 {
00227    struct gatespec gs;
00228    int offset = 0;
00229    
00230    ast_debug(3, "CMD: %d\n", cmd);
00231 
00232    /* Transaction Identifier 8 octets */
00233    *(p + offset++) = 0;
00234    *(p + offset++) = 8; /* length */
00235    *(p + offset++) = 1; /* snum */
00236    *(p + offset++) = 1; /* stype */
00237    *((uint16_t *) (p + offset)) = htons(trid);
00238    offset += 2;
00239    *(p + offset++) = 0;
00240    *(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 */
00241 
00242    /*Subscriper Identifier 8 octets */
00243    *(p + offset++) = 0;
00244    *(p + offset++) = 8; /* length */
00245    *(p + offset++) = 2; /* snum */
00246    *(p + offset++) = 1; /* stype */
00247    *((uint32_t *) (p + offset)) = htonl(mtahost);
00248    offset += 4;
00249    
00250    if (cmd == GATE_INFO || cmd == GATE_SET_HAVE_GATEID || cmd == GATE_DEL) {
00251       /* Gate ID 8 Octets */
00252       *(p + offset++) = 0;
00253       *(p + offset++) = 8; /* length */
00254       *(p + offset++) = 3; /* snum */
00255       *(p + offset++) = 1; /* stype */
00256       *((uint32_t *) (p + offset)) = htonl(gateid);
00257       offset += 4;
00258       if (cmd == GATE_INFO || cmd == GATE_DEL) {
00259          return offset;
00260       }
00261    
00262    }
00263 
00264    /* Activity Count 8 octets */
00265    *(p + offset++) = 0;
00266    *(p + offset++) = 8; /* length */
00267    *(p + offset++) = 4; /* snum */
00268    *(p + offset++) = 1; /* stype */
00269    *((uint32_t *) (p + offset)) = htonl(actcount);
00270    offset += 4;
00271 
00272 
00273    /* Gate Spec 2*60 Octets */
00274    gs.direction = 0; /* DS */
00275    gs.protocolid = 17; /* UDP */
00276    gs.flags = 0;
00277    gs.sessionclass = 1;
00278    gs.srcip = htonl(ssip);
00279    gs.dstip = htonl(mtahost);
00280    gs.srcp = htons(ssport);
00281    gs.dstp = 0;
00282 /* gs.diffserv = 0xa0;*/
00283    gs.diffserv = 0;
00284    gs.t1 = htons(cmts->t1);
00285    gs.t7 = htons(cmts->t7);
00286    gs.t8 = htons(cmts->t8);
00287    gs.r = ftoieeef(rate);
00288    gs.b = ftoieeef(psizegateid);
00289    gs.p = ftoieeef(rate);
00290    gs.m = htonl((uint32_t) psizegateid);
00291    gs.mm = htonl((uint32_t) psizegateid);
00292    gs.rate = ftoieeef(rate);
00293    gs.s = htonl(800);
00294 
00295 
00296    *(p + offset) = 0;
00297    offset++;
00298    *(p + offset) = 60; /* length */
00299    offset++;
00300    *(p + offset) = 5; /* snum */
00301    offset++;
00302    *(p + offset) = 1; /* stype */
00303    offset++;
00304    offset += cops_constructgatespec(&gs, p + offset);
00305 
00306 
00307    gs.direction = 1; /* US */
00308    gs.srcip = htonl(mtahost);
00309    gs.dstip = htonl(ssip);
00310    gs.srcp = 0;
00311    gs.dstp = htons(ssport);
00312    *(p + offset) = 0;
00313    offset++;
00314    *(p + offset) = 60; /* length */
00315    offset++;
00316    *(p + offset) = 5; /* snum */
00317    offset++;
00318    *(p + offset) = 1; /* stype */
00319    offset++;
00320    offset += cops_constructgatespec(&gs, p + offset);
00321 
00322    return(offset);
00323 }
00324 
00325 static int cops_getmsg (int sfd, struct copsmsg *recmsg)
00326 {
00327    int len, lent;
00328    char buf[COPS_HEADER_SIZE];
00329    struct pktcobj *pobject = NULL;
00330    uint16_t *ubuf = (uint16_t *) buf;
00331    recmsg->msg = NULL;
00332    recmsg->object = NULL;
00333    len = recv(sfd, buf, COPS_HEADER_SIZE, MSG_DONTWAIT);
00334    if (len < COPS_HEADER_SIZE) {
00335       return len;
00336    }
00337    recmsg->verflag = *buf;
00338    recmsg->opcode = *(buf + 1);
00339    recmsg->clienttype = ntohs(*((uint16_t *) (buf + 2)));
00340    recmsg->length = ntohl(*((uint32_t *) (buf + 4)));
00341    /* Eg KA msg*/
00342    if (recmsg->clienttype != 0x8008 ) {
00343       if (!(recmsg->msg = malloc(recmsg->length - COPS_HEADER_SIZE))) {
00344          return -1;
00345       }
00346       lent = recv(sfd, recmsg->msg, recmsg->length - COPS_HEADER_SIZE, MSG_DONTWAIT);
00347       if (lent < recmsg->length - COPS_HEADER_SIZE) {
00348          return lent;
00349       }
00350       len += len;
00351    } else {
00352       /* PacketCable Objects */
00353       while (len < recmsg->length) {
00354          if (len == COPS_HEADER_SIZE) {
00355             /* 1st round */
00356             if (!(recmsg->object = malloc(sizeof(struct pktcobj)))) {
00357                return -1;
00358             }
00359             pobject = recmsg->object;
00360          } else {
00361             if (!(pobject->next = malloc(sizeof(struct pktcobj)))) {
00362                return -1;
00363             }
00364             pobject = pobject->next;
00365          }
00366          pobject->next = NULL;
00367          lent = recv(sfd, buf, COPS_OBJECT_HEADER_SIZE, MSG_DONTWAIT);
00368          if (lent < COPS_OBJECT_HEADER_SIZE) {
00369             ast_debug(3, "Too short object header len: %i\n", lent);
00370             return lent;
00371          }
00372          len += lent;
00373          pobject->length = ntohs(*ubuf);
00374          pobject->cnum = *(buf + 2);
00375          pobject->ctype = *(buf + 3);
00376          if (!(pobject->contents = malloc(pobject->length - COPS_OBJECT_HEADER_SIZE))) {
00377             return -1;
00378          }
00379          lent = recv(sfd, pobject->contents, pobject->length - COPS_OBJECT_HEADER_SIZE, MSG_DONTWAIT);
00380          if (lent < pobject->length - COPS_OBJECT_HEADER_SIZE) {
00381             ast_debug(3, "Too short object content len: %i\n", lent);
00382             return lent;
00383          }
00384          len += lent;
00385       }
00386    }
00387    return len;
00388 }
00389 
00390 static int cops_sendmsg (int sfd, struct copsmsg * sendmsg)
00391 {
00392    char *buf;
00393    int bufpos;
00394    struct pktcobj *pobject;
00395    
00396    if (sfd < 0) {
00397       return -1;
00398    }
00399 
00400    ast_debug(3, "COPS: sending opcode: %i len: %u\n", sendmsg->opcode, sendmsg->length);
00401    if (sendmsg->length < COPS_HEADER_SIZE) {
00402       ast_log(LOG_WARNING, "COPS: invalid msg size!!!\n");
00403       return -1;
00404    }
00405    if (!(buf = malloc((size_t) sendmsg->length))) {
00406       return -1;
00407    }
00408    *buf = sendmsg->verflag ;
00409    *(buf + 1) = sendmsg->opcode;
00410    *((uint16_t *)(buf + 2)) = htons(sendmsg->clienttype);
00411    *((uint32_t *)(buf + 4)) = htonl(sendmsg->length);
00412 
00413    if (sendmsg->msg != NULL) {
00414       memcpy(buf + COPS_HEADER_SIZE, sendmsg->msg, sendmsg->length - COPS_HEADER_SIZE);
00415    } else if (sendmsg->object != NULL) {
00416       bufpos = 8;
00417       pobject = sendmsg->object;
00418       while(pobject != NULL) {
00419          ast_debug(3, "COPS: Sending Object : cnum: %i ctype %i len: %i\n", pobject->cnum, pobject->ctype, pobject->length);
00420          if (sendmsg->length < bufpos + pobject->length) {
00421             ast_log(LOG_WARNING, "COPS: Invalid msg size len: %u objectlen: %i\n", sendmsg->length, pobject->length);
00422             free(buf);
00423             return -1;
00424          }
00425          *(uint16_t *) (buf + bufpos) = htons(pobject->length);
00426          *(buf + bufpos + 2) = pobject->cnum;
00427          *(buf + bufpos + 3) = pobject->ctype;
00428          if (sendmsg->length < pobject->length + bufpos) {
00429             ast_log(LOG_WARNING, "COPS: Error sum of object len more the msg len %u < %i\n", sendmsg->length, pobject->length + bufpos);
00430             free(buf);
00431             return -1;
00432          }
00433          memcpy((buf + bufpos + 4), pobject->contents, pobject->length - 4);
00434          bufpos += pobject->length;
00435          pobject = pobject->next;
00436       }
00437    }
00438    
00439    errno = 0;
00440 #ifdef HAVE_MSG_NOSIGNAL
00441 #define  SENDFLAGS   MSG_NOSIGNAL | MSG_DONTWAIT
00442 #else
00443 #define  SENDFLAGS   MSG_DONTWAIT
00444 #endif
00445    if (send(sfd, buf, sendmsg->length, SENDFLAGS) == -1) {
00446       ast_log(LOG_WARNING, "COPS: Send failed errno=%i\n", errno);
00447       free(buf);
00448       return -2;
00449    }
00450 #undef SENDFLAGS
00451    free(buf);
00452    return 0;
00453 }
00454 
00455 static void cops_freemsg(struct copsmsg *p)
00456 {
00457    struct pktcobj *pnext;
00458    free(p->msg);
00459    p->msg = NULL;
00460    while (p->object != NULL) {
00461          pnext = p->object->next;
00462          ast_free(p->object->contents);
00463          p->object->contents = NULL;
00464          ast_free(p->object);
00465          p->object = pnext;
00466    }
00467    p->object = NULL;
00468 }
00469 
00470 struct cops_gate * AST_OPTIONAL_API_NAME(ast_pktccops_gate_alloc)(int cmd,
00471       struct cops_gate *gate, uint32_t mta, uint32_t actcount, float bitrate,
00472       uint32_t psize, uint32_t ssip, uint16_t ssport,
00473       int (* const got_dq_gi) (struct cops_gate *gate),
00474       int (* const gate_remove) (struct cops_gate *gate))
00475 {
00476    while (pktcreload) {
00477       sched_yield();
00478    }
00479 
00480    if (cmd == GATE_SET_HAVE_GATEID && gate) {
00481       ast_debug(3, "------- gate modify gateid 0x%x ssip: 0x%x\n", gate->gateid, ssip);
00482       /* TODO implement it */
00483       ast_log(LOG_WARNING, "Modify GateID not implemented\n");
00484    } 
00485    
00486    if ((gate = cops_gate_cmd(cmd, NULL, cops_trid++, mta, actcount, bitrate, psize, ssip, ssport, gate))) {
00487       ast_debug(3, "COPS: Allocating gate for mta: 0x%x\n", mta);
00488       gate->got_dq_gi = got_dq_gi;
00489       gate->gate_remove = gate_remove;
00490       return(gate);
00491    } else {
00492       ast_debug(3, "COPS: Couldn't allocate gate for mta: 0x%x\n", mta); 
00493       return NULL;
00494    }
00495 }
00496 
00497 static struct cops_gate *cops_gate_cmd(int cmd, struct cops_cmts *cmts,
00498       uint16_t trid, uint32_t mta, uint32_t actcount, float bitrate,
00499       uint32_t psize, uint32_t ssip, uint16_t ssport, struct cops_gate *gate)
00500 {
00501    struct copsmsg *gateset;
00502    struct cops_gate *new;
00503    struct cops_ippool *ippool;
00504 
00505    if (cmd == GATE_DEL) {
00506       if (gate == NULL) {
00507          return NULL;
00508       } else {
00509          cmts = gate->cmts;
00510       }
00511    }
00512 
00513    if (!cmts) {
00514       AST_LIST_LOCK(&ippool_list);
00515       AST_LIST_TRAVERSE(&ippool_list, ippool, list) {
00516          if (mta >= ippool->start && mta <= ippool->stop) {
00517             cmts = ippool->cmts;
00518             break;
00519          }
00520       }
00521       AST_LIST_UNLOCK(&ippool_list);
00522       if (!cmts) {
00523          ast_log(LOG_WARNING, "COPS: couldn't find cmts for mta: 0x%x\n", mta);
00524          return NULL;
00525       }
00526       if (cmts->sfd < 0) {
00527          ast_log(LOG_WARNING, "CMTS: %s not connected\n", cmts->name);
00528          return NULL;
00529       }
00530    }
00531 
00532    if (cmd == GATE_SET) {
00533       new = ast_calloc(1, sizeof(*new));
00534       new->gateid = 0;
00535       new->trid = trid;
00536       new->mta = mta;
00537       new->state = GATE_ALLOC_PROGRESS;
00538       new->checked = time(NULL);
00539       new->allocated = time(NULL);
00540       new->cmts = cmts;
00541       new->got_dq_gi = NULL;
00542       new->gate_remove = NULL;
00543       new->gate_open = NULL;
00544       new->tech_pvt = NULL;
00545       new->deltimer = 0;
00546       AST_LIST_LOCK(&gate_list);
00547       AST_LIST_INSERT_HEAD(&gate_list, new, list);
00548       AST_LIST_UNLOCK(&gate_list);
00549       gate = new;
00550    } else {
00551       if (gate) {
00552          gate->trid = trid;
00553       }
00554    }
00555    
00556    gate->in_transaction = time(NULL);
00557 
00558    if (!(gateset = malloc(sizeof(struct copsmsg)))) {
00559       free(gateset);
00560       return NULL;
00561    }
00562    gateset->msg = NULL;
00563    gateset->verflag = 0x10;
00564    gateset->opcode = 2; /* Decision */
00565    gateset->clienttype = 0x8008; /* =PacketCable */
00566    
00567    /* Handle object */
00568    gateset->object = malloc(sizeof(struct pktcobj));
00569    if (!gateset->object) {
00570       cops_freemsg(gateset);
00571       free(gateset);
00572       return NULL;
00573    }
00574    gateset->object->length = COPS_OBJECT_HEADER_SIZE + 4;
00575    gateset->object->cnum = 1; /* Handle */
00576    gateset->object->ctype = 1; /* client */
00577    if (!(gateset->object->contents = malloc(sizeof(uint32_t)))) {
00578       cops_freemsg(gateset);
00579       free(gateset);
00580       return NULL;
00581    }
00582    *((uint32_t *) gateset->object->contents) = htonl(cmts->handle);
00583 
00584    /* Context Object */
00585    if (!(gateset->object->next = malloc(sizeof(struct pktcobj)))) {
00586       cops_freemsg(gateset);
00587       free(gateset);
00588       return NULL;
00589    }
00590    gateset->object->next->length = COPS_OBJECT_HEADER_SIZE + 4;
00591    gateset->object->next->cnum = 2; /* Context */
00592    gateset->object->next->ctype = 1; /* Context */
00593    if (!(gateset->object->next->contents = malloc(sizeof(uint32_t)))) {
00594       cops_freemsg(gateset);
00595       free(gateset);
00596       return NULL;
00597    }
00598    *((uint32_t *) gateset->object->next->contents) = htonl(0x00080000); /* R-Type = 8 configuration request, M-Type = 0 */
00599 
00600    /* Decision Object: Flags */
00601    if (!(gateset->object->next->next = malloc(sizeof(struct pktcobj)))) {
00602       cops_freemsg(gateset);
00603       free(gateset);
00604       return NULL;
00605    }
00606    gateset->object->next->next->length = COPS_OBJECT_HEADER_SIZE + 4;
00607    gateset->object->next->next->cnum = 6; /* Decision */
00608    gateset->object->next->next->ctype = 1; /* Flags */
00609    if (!(gateset->object->next->next->contents = malloc(sizeof(uint32_t)))) {
00610       cops_freemsg(gateset);
00611       free(gateset);
00612       return NULL;
00613    }
00614    *((uint32_t *) gateset->object->next->next->contents) = htonl(0x00010001); /* Install, Trigger Error */
00615 
00616    /* Decision Object: Data */
00617    if (!(gateset->object->next->next->next = malloc(sizeof(struct pktcobj)))) {
00618       cops_freemsg(gateset);
00619       free(gateset);
00620       return NULL;
00621    }
00622    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);
00623    gateset->object->next->next->next->cnum = 6; /* Decision */
00624    gateset->object->next->next->next->ctype = 4; /* Decision Data */
00625    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));
00626    if (!gateset->object->next->next->next->contents) {
00627       cops_freemsg(gateset);
00628       free(gateset);
00629       return NULL;
00630    }
00631    gateset->object->next->next->next->next = NULL;
00632    
00633    gateset->length = COPS_HEADER_SIZE + gateset->object->length + gateset->object->next->length + gateset->object->next->next->length + gateset->object->next->next->next->length;
00634 
00635    if ((cmd == GATE_INFO || cmd == GATE_SET_HAVE_GATEID || cmd == GATE_DEL) && gate) {
00636       ast_debug(1, "Construct gate with gateid: 0x%x\n", gate->gateid);
00637       cops_construct_gate(cmd, gateset->object->next->next->next->contents, trid, mta, actcount, bitrate, psize, ssip, ssport, gate->gateid, cmts);
00638    } else {
00639       ast_debug(1, "Construct new gate\n");
00640       cops_construct_gate(cmd, gateset->object->next->next->next->contents, trid, mta, actcount, bitrate, psize, ssip, ssport, 0, cmts);
00641    }
00642    if (pktccopsdebug) {
00643       ast_debug(3, "send cmd\n");
00644    }
00645    cops_sendmsg(cmts->sfd, gateset);
00646    cops_freemsg(gateset);
00647    free(gateset);
00648    return gate;
00649 }
00650 
00651 static int cops_connect(char *host, char *port)
00652 {
00653    int s, sfd = -1, flags;
00654    struct addrinfo hints;
00655    struct addrinfo *rp;
00656    struct addrinfo *result;
00657 #ifdef HAVE_SO_NOSIGPIPE
00658    int trueval = 1;
00659 #endif
00660 
00661    memset(&hints, 0, sizeof(struct addrinfo));
00662 
00663    hints.ai_family = AF_UNSPEC;    
00664    hints.ai_socktype = SOCK_STREAM;
00665    hints.ai_flags = 0;
00666    hints.ai_protocol = 0;
00667 
00668    s = getaddrinfo(host, port, &hints, &result);
00669    if (s != 0) {
00670       ast_log(LOG_WARNING, "COPS: getaddrinfo: %s\n", gai_strerror(s));
00671       return -1;
00672    }
00673 
00674    for (rp = result; rp != NULL; rp = rp->ai_next) {
00675       sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
00676       if (sfd == -1) {
00677          ast_log(LOG_WARNING, "Failed socket\n");
00678       }
00679       flags = fcntl(sfd, F_GETFL);
00680       fcntl(sfd, F_SETFL, flags | O_NONBLOCK);
00681 #ifdef HAVE_SO_NOSIGPIPE
00682       setsockopt(sfd, SOL_SOCKET, SO_NOSIGPIPE, &trueval, sizeof(trueval));
00683 #endif
00684       connect(sfd, rp->ai_addr, rp->ai_addrlen);
00685       if (sfd == -1) {
00686          ast_log(LOG_WARNING, "Failed connect\n");
00687       }
00688    }
00689    freeaddrinfo(result);
00690 
00691    ast_debug(3, "Connecting to cmts:  %s:%s\n", host, port);
00692    return(sfd);
00693 }
00694 
00695 #define PKTCCOPS_DESTROY_CURRENT_GATE   \
00696       AST_LIST_REMOVE_CURRENT(list);  \
00697       if (gate->gate_remove) {        \
00698          gate->gate_remove(gate);    \
00699       }                               \
00700       ast_free(gate);
00701 
00702 static void *do_pktccops(void *data)
00703 {
00704    int res, nfds, len;
00705    struct copsmsg *recmsg, *sendmsg;
00706    struct copsmsg recmsgb, sendmsgb;
00707    struct pollfd *pfds = NULL, *tmp;
00708    struct pktcobj *pobject;
00709    struct cops_cmts *cmts;
00710    struct cops_gate *gate;
00711    char *sobjp;
00712    uint16_t snst, sobjlen, scommand, recvtrid, actcount, reason, subreason;
00713    uint32_t gateid, subscrid, pktcerror;
00714    time_t last_exec = 0;
00715 
00716    recmsg = &recmsgb;
00717    sendmsg = &sendmsgb;
00718 
00719    ast_debug(3, "COPS: thread started\n");
00720 
00721    for (;;) {
00722       ast_free(pfds);
00723       pfds = NULL;
00724       nfds = 0;
00725       AST_LIST_LOCK(&cmts_list);
00726       AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
00727          if (last_exec != time(NULL)) {
00728             if (cmts->state == 2 && cmts->katimer + cmts->keepalive < time(NULL)) {
00729                ast_log(LOG_WARNING, "KA timer (%us) expired cmts: %s\n",  cmts->keepalive, cmts->name);
00730                cmts->state = 0;
00731                cmts->katimer = -1;
00732                close(cmts->sfd);
00733                cmts->sfd = -1;
00734             }
00735          }
00736          if (cmts->sfd > 0) {
00737             if (!(tmp = ast_realloc(pfds, (nfds + 1) * sizeof(*pfds)))) {
00738                continue;
00739             }
00740             pfds = tmp;
00741             pfds[nfds].fd = cmts->sfd;
00742             pfds[nfds].events = POLLIN;
00743             pfds[nfds].revents = 0;
00744             nfds++;
00745          } else {
00746             cmts->sfd = cops_connect(cmts->host, cmts->port);
00747             if (cmts->sfd > 0) {
00748                cmts->state = 1;
00749                if (cmts->sfd > 0) {
00750                   if (!(tmp = ast_realloc(pfds, (nfds + 1) * sizeof(*pfds)))) {
00751                      continue;
00752                   }
00753                   pfds = tmp;
00754                   pfds[nfds].fd = cmts->sfd;
00755                   pfds[nfds].events = POLLIN;
00756                   pfds[nfds].revents = 0;
00757                   nfds++;
00758                }
00759             }
00760          }
00761       }
00762       AST_LIST_UNLOCK(&cmts_list);
00763 
00764       if (last_exec != time(NULL)) {
00765          last_exec = time(NULL);
00766          AST_LIST_LOCK(&gate_list);
00767          AST_LIST_TRAVERSE_SAFE_BEGIN(&gate_list, gate, list) {
00768             if (gate) {
00769                if (gate->deltimer && gate->deltimer < time(NULL)) {
00770                   gate->deltimer = time(NULL) + 5;
00771                   gate->trid = cops_trid++;
00772                   cops_gate_cmd(GATE_DEL, gate->cmts, gate->trid, 0, 0, 0, 0, 0, 0, gate);
00773                   ast_debug(3, "COPS: requested Gate-Del: CMTS: %s gateid: 0x%x\n", (gate->cmts) ? gate->cmts->name : "null", gate->gateid);
00774                }
00775                if (time(NULL) - gate->checked > gatetimeout) {
00776                   ast_debug(3, "COPS: remove from list GATE, CMTS: %s gateid: 0x%x\n", (gate->cmts) ? gate->cmts->name : "null", gate->gateid);
00777                   gate->state = GATE_TIMEOUT;
00778                   PKTCCOPS_DESTROY_CURRENT_GATE;
00779                } else if (time(NULL) - gate->checked > gateinfoperiod && (gate->state == GATE_ALLOCATED || gate->state == GATE_OPEN)) {
00780                   if (gate->cmts && (!gate->in_transaction || ( gate->in_transaction + 5 ) < time(NULL))) {
00781                      gate->trid = cops_trid++;
00782                      ast_debug(3, "COPS: Gate-Info send to CMTS: %s gateid: 0x%x\n", gate->cmts->name, gate->gateid);
00783                      cops_gate_cmd(GATE_INFO, gate->cmts, gate->trid, gate->mta, 0, 0, 0, 0, 0, gate);
00784                   }
00785                }
00786             }
00787          }
00788          AST_LIST_TRAVERSE_SAFE_END;
00789          AST_LIST_UNLOCK(&gate_list);
00790       }
00791 
00792       if (pktcreload == 2) {
00793          pktcreload = 0;
00794       }
00795       if ((res = ast_poll(pfds, nfds, 1000))) {
00796          AST_LIST_LOCK(&cmts_list);
00797          AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
00798             int idx;
00799             if ((idx = ast_poll_fd_index(pfds, nfds, cmts->sfd)) > -1 && (pfds[idx].revents & POLLIN)) {
00800                len = cops_getmsg(cmts->sfd, recmsg);
00801                if (len > 0) {
00802                   ast_debug(3, "COPS: got from %s:\n Header: versflag=0x%.2x opcode=%i clienttype=0x%.4x msglength=%u\n",
00803                      cmts->name, (unsigned)recmsg->verflag,
00804                      recmsg->opcode, (unsigned)recmsg->clienttype, recmsg->length);
00805                   if (recmsg->object != NULL) {
00806                      pobject = recmsg->object;
00807                      while (pobject != NULL) {
00808                         ast_debug(3, " OBJECT: length=%i cnum=%i ctype=%i\n", pobject->length, pobject->cnum, pobject->ctype);
00809                         if (recmsg->opcode == 1 && pobject->cnum == 1 && pobject->ctype == 1 ) {
00810                            cmts->handle = ntohl(*((uint32_t *) pobject->contents));
00811                            ast_debug(3, "    REQ client handle: %u\n", cmts->handle);
00812                            cmts->state = 2;
00813                            cmts->katimer = time(NULL);
00814                         } else if (pobject->cnum == 9 && pobject->ctype == 1) {
00815                            sobjp = pobject->contents;
00816                            subscrid = 0;
00817                            recvtrid = 0;
00818                            scommand = 0;
00819                            pktcerror = 0;
00820                            actcount = 0;
00821                            gateid = 0;
00822                            reason = 0;
00823                            subreason = 0;
00824                            while (sobjp < (pobject->contents + pobject->length - 4)) {
00825                               sobjlen = ntohs(*((uint16_t *) sobjp));
00826                               snst = ntohs(*((uint16_t *) (sobjp + 2)));
00827                               ast_debug(3, "   S-Num S-type: 0x%.4x len: %i\n", (unsigned)snst, sobjlen);
00828                               if (snst == 0x0101 ) {
00829                                  recvtrid = ntohs(*((uint16_t *) (sobjp + 4)));
00830                                  scommand = ntohs(*((uint16_t *) (sobjp + 6)));              
00831                                  ast_debug(3, "     Transaction Identifier command: %i trid %i\n", scommand, recvtrid);
00832                               } else if (snst == 0x0201) {
00833                                  subscrid = ntohl(*((uint32_t *) (sobjp + 4)));
00834                                  ast_debug(3, "     Subscriber ID: 0x%.8x\n", subscrid);
00835                               } else if (snst == 0x0301) {
00836                                  gateid = ntohl(*((uint32_t *) (sobjp + 4)));
00837                                  ast_debug(3, "      Gate ID: 0x%x 0x%.8x\n", gateid, gateid);
00838                               } else if (snst == 0x0401) {
00839                                  actcount = ntohs(*((uint16_t *) (sobjp + 6)));
00840                                  ast_debug(3, "      Activity Count: %i\n", actcount);
00841                               } else if (snst == 0x0901) {
00842                                  pktcerror = ntohl(*((uint32_t *) (sobjp + 4)));
00843                                  ast_debug(3, "      PKTC Error: 0x%.8x\n", pktcerror);
00844                               } else if (snst == 0x0d01) {
00845                                  reason = ntohs(*((uint16_t *) (sobjp + 4)));
00846                                  subreason = ntohs(*((uint16_t *) (sobjp + 6)));
00847                                  ast_debug(3, "      Reason: %d Subreason: %d\n", reason, subreason);
00848                               }
00849                               sobjp += sobjlen;
00850                               if (!sobjlen)
00851                                  break;
00852                            }
00853                            if (scommand == PKTCCOPS_SCOMMAND_GATE_CLOSE || scommand == PKTCCOPS_SCOMMAND_GATE_OPEN) {
00854                               AST_LIST_LOCK(&gate_list);
00855                               AST_LIST_TRAVERSE_SAFE_BEGIN(&gate_list, gate, list) {
00856                                  if (gate->cmts == cmts && gate->gateid == gateid) {
00857                                     if (scommand == PKTCCOPS_SCOMMAND_GATE_CLOSE && gate->state != GATE_CLOSED && gate->state != GATE_CLOSED_ERR ) {
00858                                        ast_debug(3, "COPS Gate Close Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
00859                                        if (subreason) {
00860                                           gate->state = GATE_CLOSED_ERR;
00861                                           PKTCCOPS_DESTROY_CURRENT_GATE;
00862                                        } else {
00863                                           gate->state = GATE_CLOSED;
00864                                           PKTCCOPS_DESTROY_CURRENT_GATE;
00865                                        }
00866                                        break;
00867                                     } else if (scommand == PKTCCOPS_SCOMMAND_GATE_OPEN && gate->state == GATE_ALLOCATED) {
00868                                        ast_debug(3, "COPS Gate Open Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
00869                                        gate->state = GATE_OPEN;
00870                                        if (gate->gate_open) {
00871                                           ast_debug(3, "Calling GATE-OPEN callback function\n");
00872                                           gate->gate_open(gate);
00873                                           gate->gate_open = NULL;
00874                                        }
00875                                        break;
00876                                     } 
00877                                  }
00878                               }
00879                               AST_LIST_TRAVERSE_SAFE_END;
00880                               AST_LIST_UNLOCK(&gate_list);
00881                            } 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) {
00882                               AST_LIST_LOCK(&gate_list);
00883                               AST_LIST_TRAVERSE_SAFE_BEGIN(&gate_list, gate, list) {
00884                                  if (gate->cmts == cmts && gate->trid == recvtrid) {
00885                                     gate->gateid = gateid;
00886                                     gate->checked = time(NULL);
00887                                     if (scommand == PKTCCOPS_SCOMMAND_GATE_SET_ACK) {
00888                                        ast_debug(3, "COPS Gate Set Ack Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
00889                                        gate->state = GATE_ALLOCATED;
00890                                        if (gate->got_dq_gi) {
00891                                           gate->got_dq_gi(gate);
00892                                           gate->got_dq_gi = NULL;
00893                                        }
00894                                     } else if (scommand == PKTCCOPS_SCOMMAND_GATE_SET_ERR) {
00895                                        ast_debug(3, "COPS Gate Set Error TrId: %i ErrorCode: 0x%.8x CMTS: %s\n ", recvtrid, pktcerror, cmts->name);
00896                                        gate->state = GATE_ALLOC_FAILED;
00897                                        if (gate->got_dq_gi) {
00898                                           gate->got_dq_gi(gate);
00899                                           gate->got_dq_gi = NULL;
00900                                        }
00901                                        PKTCCOPS_DESTROY_CURRENT_GATE;
00902                                     } else if (scommand == PKTCCOPS_SCOMMAND_GATE_INFO_ACK) {
00903                                        ast_debug(3, "COPS Gate Info Ack Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
00904                                     } else if (scommand == PKTCCOPS_SCOMMAND_GATE_INFO_ERR) {
00905                                        ast_debug(3, "COPS Gate Info Error Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
00906                                        gate->state = GATE_ALLOC_FAILED;
00907                                        PKTCCOPS_DESTROY_CURRENT_GATE;
00908                                     } else if (scommand == PKTCCOPS_SCOMMAND_GATE_DELETE_ACK) {
00909                                        ast_debug(3, "COPS Gate Deleted Gate ID: 0x%x TrId: %i CMTS: %s\n", gateid, recvtrid, cmts->name);
00910                                        gate->state = GATE_DELETED;
00911                                        PKTCCOPS_DESTROY_CURRENT_GATE;
00912                                     }
00913                                     gate->in_transaction = 0;
00914                                     break;
00915                                  }
00916                               }
00917                               AST_LIST_TRAVERSE_SAFE_END;
00918                               AST_LIST_UNLOCK(&gate_list);
00919                            }
00920                         }
00921                         pobject = pobject->next;
00922                      }
00923                   }
00924 
00925                   if (recmsg->opcode == 6 && recmsg->object && recmsg->object->cnum == 11 && recmsg->object->ctype == 1) {
00926                      ast_debug(3, "COPS: Client open %s\n", cmts->name);
00927                      sendmsg->msg = NULL;
00928                      sendmsg->verflag = 0x10;
00929                      sendmsg->opcode = 7; /* Client Accept */
00930                      sendmsg->clienttype = 0x8008; /* =PacketCable */
00931                      sendmsg->length = COPS_HEADER_SIZE + COPS_OBJECT_HEADER_SIZE + 4;
00932                      sendmsg->object = malloc(sizeof(struct pktcobj));
00933                      sendmsg->object->length = 4 + COPS_OBJECT_HEADER_SIZE;
00934                      sendmsg->object->cnum = 10; /* keppalive timer*/
00935                      sendmsg->object->ctype = 1;
00936                      sendmsg->object->contents = malloc(sizeof(uint32_t));
00937                      *((uint32_t *) sendmsg->object->contents) = htonl(cmts->keepalive & 0x0000ffff);
00938                      sendmsg->object->next = NULL;
00939                      cops_sendmsg(cmts->sfd, sendmsg);
00940                      cops_freemsg(sendmsg);
00941                   } else if (recmsg->opcode == 9) {
00942                      ast_debug(3, "COPS: Keepalive Request got echoing back %s\n", cmts->name);
00943                      cops_sendmsg(cmts->sfd, recmsg);
00944                      cmts->state = 2;
00945                      cmts->katimer = time(NULL);
00946                   }
00947                } 
00948                if (len <= 0) {
00949                   ast_debug(3, "COPS: lost connection to %s\n", cmts->name);
00950                   close(cmts->sfd);
00951                   cmts->sfd = -1;
00952                   cmts->state = 0;
00953                }
00954                cops_freemsg(recmsg);
00955             }
00956          }
00957          AST_LIST_UNLOCK(&cmts_list);        
00958       }
00959       if (pktcreload) {
00960          ast_debug(3, "Reloading pktccops...\n");
00961          AST_LIST_LOCK(&gate_list);
00962          AST_LIST_LOCK(&cmts_list);
00963          pktccops_unregister_ippools();
00964          AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
00965             cmts->need_delete = 1;
00966          }
00967          load_pktccops_config();
00968          AST_LIST_TRAVERSE_SAFE_BEGIN(&cmts_list, cmts, list) {
00969             if (cmts && cmts->need_delete) {
00970                AST_LIST_TRAVERSE(&gate_list, gate, list) {
00971                   if (gate->cmts == cmts) {
00972                      ast_debug(3, "Null gate %s\n", gate->cmts->name);
00973                      gate->cmts = NULL;
00974                   }
00975                   gate->in_transaction = 0;
00976                }
00977                AST_LIST_UNLOCK(&gate_list);
00978                ast_debug(3, "removing cmts: %s\n", cmts->name);
00979                if (cmts->sfd > 0) {
00980                   close(cmts->sfd);
00981                }
00982                AST_LIST_REMOVE_CURRENT(list);
00983                free(cmts);
00984             }
00985          }
00986          AST_LIST_TRAVERSE_SAFE_END;
00987          AST_LIST_UNLOCK(&cmts_list);
00988          AST_LIST_UNLOCK(&gate_list);
00989          pktcreload = 2;
00990       }
00991       pthread_testcancel();
00992    }
00993    return NULL;
00994 }
00995 
00996 static int restart_pktc_thread(void)
00997 {
00998    if (pktccops_thread == AST_PTHREADT_STOP) {
00999       return 0;
01000    }
01001    if (ast_mutex_lock(&pktccops_lock)) {
01002       ast_log(LOG_WARNING, "Unable to lock pktccops\n");
01003       return -1;
01004    }
01005    if (pktccops_thread == pthread_self()) {
01006       ast_mutex_unlock(&pktccops_lock);
01007       ast_log(LOG_WARNING, "Cannot kill myself\n");
01008       return -1;
01009    }
01010    if (pktccops_thread != AST_PTHREADT_NULL) {
01011       /* Wake up the thread */
01012       pthread_kill(pktccops_thread, SIGURG);
01013    } else {
01014       /* Start a new monitor */
01015       if (ast_pthread_create_background(&pktccops_thread, NULL, do_pktccops, NULL) < 0) {
01016          ast_mutex_unlock(&pktccops_lock);
01017          ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
01018          return -1;
01019       }
01020    }
01021    ast_mutex_unlock(&pktccops_lock);
01022    return 0;
01023 }
01024 
01025 static int load_pktccops_config(void)
01026 {
01027    static char *cfg = "res_pktccops.conf";
01028    struct ast_config *config;
01029    struct ast_variable *v;
01030    struct cops_cmts *cmts;
01031    struct cops_ippool *new_ippool;
01032    const char *host, *cat, *port;
01033    int update;
01034    int res = 0;
01035    uint16_t t1_temp, t7_temp, t8_temp;
01036    uint32_t keepalive_temp;
01037    unsigned int a,b,c,d,e,f,g,h;
01038    struct ast_flags config_flags = {0};
01039 
01040    if (!(config = ast_config_load(cfg, config_flags))) {
01041       ast_log(LOG_WARNING, "Unable to load config file res_pktccops.conf\n");
01042       return -1;
01043    }
01044    for (cat = ast_category_browse(config, NULL); cat; cat = ast_category_browse(config, cat)) {
01045       if (!strcmp(cat, "general")) {
01046          for (v = ast_variable_browse(config, cat); v; v = v->next) {
01047             if (!strcasecmp(v->name, "t1")) {
01048                t1 = atoi(v->value);
01049             } else if (!strcasecmp(v->name, "t7")) {
01050                t7 = atoi(v->value);
01051             } else if (!strcasecmp(v->name, "t8")) {
01052                t8 = atoi(v->value);
01053             } else if (!strcasecmp(v->name, "keepalive")) {
01054                keepalive = atoi(v->value);
01055             } else if (!strcasecmp(v->name, "gateinfoperiod")) {
01056                gateinfoperiod = atoi(v->value);
01057             } else if (!strcasecmp(v->name, "gatetimeout")) {
01058                gatetimeout = atoi(v->value);
01059             } else {
01060                ast_log(LOG_WARNING, "Unkown option %s in general section of res_ptkccops.conf\n", v->name);
01061             }
01062          }        
01063       } else {
01064          /* Defaults */
01065          host = NULL;
01066          port = NULL;
01067          t1_temp = t1;
01068          t7_temp = t7;
01069          t8_temp = t8;
01070          keepalive_temp = keepalive;
01071 
01072          for (v = ast_variable_browse(config, cat); v; v = v->next) {
01073             if (!strcasecmp(v->name, "host")) {
01074                host = v->value;           
01075             } else if (!strcasecmp(v->name, "port")) {
01076                port = v->value;
01077             } else if (!strcasecmp(v->name, "t1")) {
01078                t1_temp = atoi(v->value);
01079             } else if (!strcasecmp(v->name, "t7")) {
01080                t7_temp = atoi(v->value);
01081             } else if (!strcasecmp(v->name, "t8")) {
01082                t8_temp = atoi(v->value);
01083             } else if (!strcasecmp(v->name, "keepalive")) {
01084                keepalive_temp = atoi(v->value);
01085             } else if (!strcasecmp(v->name, "pool")) {
01086                /* we weill parse it in 2nd round */
01087             } else {
01088                ast_log(LOG_WARNING, "Unkown option %s in res_ptkccops.conf\n", v->name);
01089             }
01090          }
01091 
01092          update = 0;
01093          AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
01094             if (!strcmp(cmts->name, cat)) {
01095                update = 1;
01096                break;
01097             }
01098 
01099          }
01100          if (!update) {
01101             cmts = ast_calloc(1, sizeof(*cmts));
01102             if (!cmts) {
01103                res = -1;
01104                break;
01105             }
01106             AST_LIST_INSERT_HEAD(&cmts_list, cmts, list);
01107          }
01108          if (cat) {
01109             ast_copy_string(cmts->name, cat, sizeof(cmts->name));
01110          }
01111          if (host) {
01112             ast_copy_string(cmts->host, host, sizeof(cmts->host));
01113          }
01114          if (port) {
01115             ast_copy_string(cmts->port, port, sizeof(cmts->port));
01116          } else {
01117             ast_copy_string(cmts->port, DEFAULT_COPS_PORT, sizeof(cmts->port));
01118          }
01119 
01120          cmts->t1 = t1_temp;
01121          cmts->t7 = t7_temp;
01122          cmts->t8 = t8_temp;
01123          cmts->keepalive = keepalive_temp;
01124          if (!update) {
01125             cmts->state = 0;
01126             cmts->sfd = -1;
01127          }
01128          cmts->need_delete = 0;
01129          for (v = ast_variable_browse(config, cat); v; v = v->next) {
01130             /* parse ipppol when we have cmts ptr */
01131             if (!strcasecmp(v->name, "pool")) {
01132                if (sscanf(v->value, "%3u.%3u.%3u.%3u %3u.%3u.%3u.%3u", &a, &b, &c, &d, &e, &f, &g, &h) == 8) {
01133                   new_ippool = ast_calloc(1, sizeof(*new_ippool));
01134                   if (!new_ippool) {
01135                      res = -1;
01136                      break;
01137                   }
01138                   new_ippool->start = a << 24 | b << 16 | c << 8 | d;
01139                   new_ippool->stop = e << 24 | f << 16 | g << 8 | h;
01140                   new_ippool->cmts = cmts;
01141                   pktccops_add_ippool(new_ippool);
01142                } else {
01143                   ast_log(LOG_WARNING, "Invalid ip pool format in res_pktccops.conf\n");
01144                }
01145             }
01146          }
01147       }
01148    }
01149    ast_config_destroy(config);
01150    return res;
01151 }
01152 
01153 static char *pktccops_show_cmtses(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01154 {
01155    struct cops_cmts *cmts;
01156    char statedesc[16];
01157    int katimer;
01158    
01159    switch(cmd) {
01160    case CLI_INIT:
01161       e->command = "pktccops show cmtses";
01162       e->usage = 
01163          "Usage: pktccops show cmtses\n"
01164          "       List PacketCable COPS CMTSes.\n";
01165 
01166       return NULL;
01167    case CLI_GENERATE:
01168       return NULL;
01169    }
01170 
01171    ast_cli(a->fd, "%-16s %-24s %-12s %7s\n", "Name        ", "Host                ", "Status    ", "KA timer  ");
01172    ast_cli(a->fd, "%-16s %-24s %-12s %7s\n", "------------", "--------------------", "----------", "-----------");
01173    AST_LIST_LOCK(&cmts_list);
01174    AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
01175       katimer = -1;
01176       if (cmts->state == 2) {
01177          ast_copy_string(statedesc, "Connected", sizeof(statedesc));
01178          katimer = (int) (time(NULL) - cmts->katimer);
01179       } else if (cmts->state == 1) {
01180          ast_copy_string(statedesc, "Connecting", sizeof(statedesc));
01181       } else {
01182          ast_copy_string(statedesc, "N/A", sizeof(statedesc));
01183       }
01184       ast_cli(a->fd, "%-16s %-15s:%-8s %-12s %-7d\n", cmts->name, cmts->host, cmts->port, statedesc, katimer);
01185    }
01186    AST_LIST_UNLOCK(&cmts_list);
01187    return CLI_SUCCESS;
01188 }
01189 
01190 static char *pktccops_show_gates(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01191 {
01192    struct cops_gate *gate;
01193    char state_desc[16];
01194 
01195    switch(cmd) {
01196    case CLI_INIT:
01197       e->command = "pktccops show gates";
01198       e->usage = 
01199          "Usage: pktccops show gates\n"
01200          "       List PacketCable COPS GATEs.\n";
01201 
01202       return NULL;
01203    case CLI_GENERATE:
01204       return NULL;
01205    }
01206 
01207    ast_cli(a->fd, "%-16s %-12s %-12s %-10s %-10s %-10s\n" ,"CMTS", "Gate-Id","MTA", "Status", "AllocTime", "CheckTime");
01208    ast_cli(a->fd, "%-16s %-12s %-12s %-10s %-10s %-10s\n" ,"--------------" ,"----------", "----------", "--------", "--------", "--------\n");
01209    AST_LIST_LOCK(&cmts_list);
01210    AST_LIST_LOCK(&gate_list);
01211    AST_LIST_TRAVERSE(&gate_list, gate, list) {
01212       if (gate->state == GATE_ALLOC_FAILED) {
01213          ast_copy_string(state_desc, "Failed", sizeof(state_desc));
01214       } else if (gate->state == GATE_ALLOC_PROGRESS) {
01215          ast_copy_string(state_desc, "In Progress", sizeof(state_desc));
01216       } else if (gate->state == GATE_ALLOCATED) {
01217          ast_copy_string(state_desc, "Allocated", sizeof(state_desc));
01218       } else if (gate->state == GATE_CLOSED) {
01219          ast_copy_string(state_desc, "Closed", sizeof(state_desc));
01220       } else if (gate->state == GATE_CLOSED_ERR) {
01221          ast_copy_string(state_desc, "ClosedErr", sizeof(state_desc));
01222       } else if (gate->state == GATE_OPEN) {
01223          ast_copy_string(state_desc, "Open", sizeof(state_desc));
01224       } else if (gate->state == GATE_DELETED) {
01225          ast_copy_string(state_desc, "Deleted", sizeof(state_desc));
01226       } else {
01227          ast_copy_string(state_desc, "N/A", sizeof(state_desc));
01228       }
01229       
01230       ast_cli(a->fd, "%-16s 0x%.8x   0x%08x   %-10s %10i %10i %u\n", (gate->cmts) ? gate->cmts->name : "null" , gate->gateid, gate->mta, 
01231          state_desc, (int) (time(NULL) - gate->allocated), (gate->checked) ? (int) (time(NULL) - gate->checked) : 0, (unsigned int) gate->in_transaction);
01232    }
01233    AST_LIST_UNLOCK(&cmts_list);
01234    AST_LIST_UNLOCK(&gate_list);
01235    return CLI_SUCCESS;
01236 }
01237 
01238 static char *pktccops_show_pools(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01239 {
01240    struct cops_ippool *ippool;
01241    char start[32];
01242    char stop[32];
01243 
01244    switch(cmd) {
01245    case CLI_INIT:
01246       e->command = "pktccops show pools";
01247       e->usage = 
01248          "Usage: pktccops show pools\n"
01249          "       List PacketCable COPS ip pools of MTAs.\n";
01250 
01251       return NULL;
01252    case CLI_GENERATE:
01253       return NULL;
01254    }
01255 
01256    ast_cli(a->fd, "%-16s %-18s %-7s\n", "Start     ", "Stop      ", "CMTS    ");
01257    ast_cli(a->fd, "%-16s %-18s %-7s\n", "----------", "----------", "--------");
01258    AST_LIST_LOCK(&ippool_list);
01259    AST_LIST_TRAVERSE(&ippool_list, ippool, list) {
01260       snprintf(start, sizeof(start), "%3u.%3u.%3u.%3u", ippool->start >> 24, (ippool->start >> 16) & 0x000000ff, (ippool->start >> 8) & 0x000000ff, ippool->start & 0x000000ff);
01261 
01262       snprintf(stop, sizeof(stop), "%3u.%3u.%3u.%3u", ippool->stop >> 24, (ippool->stop >> 16) & 0x000000ff, (ippool->stop >> 8) & 0x000000ff, ippool->stop & 0x000000ff);
01263       ast_cli(a->fd, "%-16s %-18s %-16s\n", start, stop, ippool->cmts->name);
01264    }
01265    AST_LIST_UNLOCK(&ippool_list);
01266    return CLI_SUCCESS;
01267 }
01268 
01269 static char *pktccops_gatedel(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01270 {
01271    int found = 0;
01272    int trid;
01273    uint32_t gateid;
01274    struct cops_gate *gate;
01275    struct cops_cmts *cmts;
01276 
01277    switch (cmd) {
01278    case CLI_INIT:
01279       e->command = "pktccops gatedel";
01280       e->usage = 
01281          "Usage: pktccops gatedel <cmts> <gateid>\n"
01282          "       Send Gate-Del to cmts.\n";
01283       return NULL;
01284    case CLI_GENERATE:
01285       return NULL;
01286    }
01287 
01288    if (a->argc < 4)
01289       return CLI_SHOWUSAGE;
01290 
01291    AST_LIST_LOCK(&cmts_list);
01292    AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
01293       if (!strcmp(cmts->name, a->argv[2])) {
01294          ast_cli(a->fd, "Found cmts: %s\n", cmts->name);
01295          found = 1;
01296          break;
01297       }
01298    }
01299    AST_LIST_UNLOCK(&cmts_list);
01300    
01301    if (!found)
01302       return CLI_SHOWUSAGE;
01303 
01304    trid = cops_trid++;
01305    if (!sscanf(a->argv[3], "%x", &gateid)) {
01306       ast_cli(a->fd, "bad gate specification (%s)\n", a->argv[3]);   
01307       return CLI_SHOWUSAGE;
01308    }
01309 
01310    found = 0;
01311    AST_LIST_LOCK(&gate_list);
01312    AST_LIST_TRAVERSE(&gate_list, gate, list) {
01313       if (gate->gateid == gateid && gate->cmts == cmts) {
01314          found = 1;
01315          break;
01316       }
01317    }
01318       
01319    if (!found) {
01320       ast_cli(a->fd, "gate not found: %s\n", a->argv[3]);
01321       return CLI_SHOWUSAGE;
01322    }
01323 
01324    AST_LIST_UNLOCK(&gate_list);
01325    cops_gate_cmd(GATE_DEL, cmts, trid, 0, 0, 0, 0, 0, 0, gate);
01326    return CLI_SUCCESS;
01327 }
01328 
01329 static char *pktccops_gateset(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01330 {
01331    int foundcmts = 0;
01332    int trid;
01333    unsigned int an,bn,cn,dn;
01334    uint32_t mta, ssip;
01335    struct cops_cmts *cmts;
01336 
01337    switch (cmd) {
01338    case CLI_INIT:
01339       e->command = "pktccops gateset";
01340       e->usage = 
01341          "Usage: pktccops gateset <cmts> <mta> <acctcount> <bitrate> <packet size> <switch ip> <switch port>\n"
01342          "       Send Gate-Set to cmts.\n";
01343       return NULL;
01344    case CLI_GENERATE:
01345       return NULL;
01346    }
01347 
01348    if (a->argc < 9)
01349       return CLI_SHOWUSAGE;
01350 
01351    if (!strcmp(a->argv[2], "null")) {
01352       cmts = NULL;
01353    } else {
01354       AST_LIST_LOCK(&cmts_list);
01355       AST_LIST_TRAVERSE(&cmts_list, cmts, list) {
01356          if (!strcmp(cmts->name, a->argv[2])) {
01357             ast_cli(a->fd, "Found cmts: %s\n", cmts->name);
01358             foundcmts = 1;
01359             break;
01360          }
01361       }
01362       AST_LIST_UNLOCK(&cmts_list);
01363       if (!foundcmts) {
01364          ast_cli(a->fd, "CMTS not found: %s\n", a->argv[2]);
01365          return CLI_SHOWUSAGE;
01366       }
01367    }
01368 
01369    trid = cops_trid++;
01370    if (sscanf(a->argv[3], "%3u.%3u.%3u.%3u", &an, &bn, &cn, &dn) != 4) {
01371       ast_cli(a->fd, "MTA specification (%s) does not look like an ipaddr\n", a->argv[3]);
01372       return CLI_SHOWUSAGE;
01373    }
01374    mta = an << 24 | bn << 16 | cn << 8 | dn;
01375 
01376    if (sscanf(a->argv[7], "%3u.%3u.%3u.%3u", &an, &bn, &cn, &dn) != 4) {
01377       ast_cli(a->fd, "SSIP specification (%s) does not look like an ipaddr\n", a->argv[7]);
01378       return CLI_SHOWUSAGE;
01379    }
01380    ssip = an << 24 | bn << 16 | cn << 8 | dn;
01381 
01382    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);
01383    return CLI_SUCCESS;
01384 }
01385 
01386 static char *pktccops_debug(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01387 {
01388    switch (cmd) {
01389    case CLI_INIT:
01390       e->command = "pktccops set debug {on|off}";
01391       e->usage = 
01392          "Usage: pktccops set debug {on|off}\n"
01393          "  Turn on/off debuging\n";
01394       return NULL;
01395    case CLI_GENERATE:
01396       return NULL;
01397    }
01398 
01399    if (a->argc != e->args)
01400       return CLI_SHOWUSAGE;
01401    if (!strncasecmp(a->argv[e->args - 1], "on", 2)) {
01402       pktccopsdebug = 1;
01403       ast_cli(a->fd, "PktcCOPS Debugging Enabled\n");
01404    } else if (!strncasecmp(a->argv[e->args - 1], "off", 2)) {
01405       pktccopsdebug = 0;
01406       ast_cli(a->fd, "PktcCOPS Debugging Disabled\n");
01407    } else {
01408       return CLI_SHOWUSAGE;
01409    }
01410    return CLI_SUCCESS;
01411 
01412 }
01413 
01414 static struct ast_cli_entry cli_pktccops[] = {
01415    AST_CLI_DEFINE(pktccops_show_cmtses, "List PacketCable COPS CMTSes"),
01416    AST_CLI_DEFINE(pktccops_show_gates, "List PacketCable COPS GATEs"),
01417    AST_CLI_DEFINE(pktccops_show_pools, "List PacketCable MTA pools"),
01418    AST_CLI_DEFINE(pktccops_gateset, "Send Gate-Set to cmts"),
01419    AST_CLI_DEFINE(pktccops_gatedel, "Send Gate-Det to cmts"),
01420    AST_CLI_DEFINE(pktccops_debug, "Enable/Disable COPS debugging")
01421 };
01422 
01423 static int pktccops_add_ippool(struct cops_ippool *ippool)
01424 {
01425    if (ippool) {
01426       AST_LIST_LOCK(&ippool_list);
01427       AST_LIST_INSERT_HEAD(&ippool_list, ippool, list);
01428       AST_LIST_UNLOCK(&ippool_list);
01429       return 0;
01430    } else {
01431       ast_log(LOG_WARNING, "Attempted to register NULL ippool?\n");
01432       return -1;
01433    }
01434 }
01435 
01436 static void pktccops_unregister_cmtses(void)
01437 {
01438    struct cops_cmts *cmts;
01439    struct cops_gate *gate;
01440    AST_LIST_LOCK(&cmts_list);
01441    while ((cmts = AST_LIST_REMOVE_HEAD(&cmts_list, list))) {
01442       if (cmts->sfd > 0) {
01443          close(cmts->sfd);
01444       }
01445       free(cmts);
01446    }
01447    AST_LIST_UNLOCK(&cmts_list);
01448 
01449    AST_LIST_LOCK(&gate_list);
01450    while ((gate = AST_LIST_REMOVE_HEAD(&gate_list, list))) {
01451       free(gate);
01452    }
01453    AST_LIST_UNLOCK(&gate_list);
01454 }
01455 
01456 static void pktccops_unregister_ippools(void)
01457 {
01458    struct cops_ippool *ippool;
01459    AST_LIST_LOCK(&ippool_list);
01460    while ((ippool = AST_LIST_REMOVE_HEAD(&ippool_list, list))) {
01461       free(ippool);
01462    }
01463    AST_LIST_UNLOCK(&ippool_list);
01464 }
01465 
01466 static int load_module(void)
01467 {
01468    int res;
01469    AST_LIST_LOCK(&cmts_list);
01470    res = load_pktccops_config();
01471    AST_LIST_UNLOCK(&cmts_list);
01472    if (res == -1) {
01473       return AST_MODULE_LOAD_DECLINE;
01474    }
01475    ast_cli_register_multiple(cli_pktccops, sizeof(cli_pktccops) / sizeof(struct ast_cli_entry));
01476    restart_pktc_thread();
01477    return 0;
01478 }
01479 
01480 static int unload_module(void)
01481 {
01482    if (!ast_mutex_lock(&pktccops_lock)) {
01483       if ((pktccops_thread != AST_PTHREADT_NULL) && (pktccops_thread != AST_PTHREADT_STOP)) {
01484          pthread_cancel(pktccops_thread);
01485          pthread_kill(pktccops_thread, SIGURG);
01486          pthread_join(pktccops_thread, NULL);
01487       }
01488       pktccops_thread = AST_PTHREADT_STOP;
01489       ast_mutex_unlock(&pktccops_lock);
01490    } else {
01491       ast_log(LOG_ERROR, "Unable to lock the pktccops_thread\n");
01492       return -1;
01493    }
01494 
01495    ast_cli_unregister_multiple(cli_pktccops, sizeof(cli_pktccops) / sizeof(struct ast_cli_entry));
01496    pktccops_unregister_cmtses();
01497    pktccops_unregister_ippools();
01498    pktccops_thread = AST_PTHREADT_NULL;
01499    return 0;
01500 }
01501 
01502 static int reload_module(void)
01503 {
01504    /* Prohibit unloading */
01505    if (pktcreload) {
01506       ast_log(LOG_NOTICE, "Previous reload in progress, please wait!\n");
01507       return -1;
01508    }
01509    pktcreload = 1;
01510    return 0;
01511 }
01512 
01513 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "PktcCOPS manager for MGCP",
01514       .load = load_module,
01515       .unload = unload_module,
01516       .reload = reload_module,
01517           );
01518 

Generated on 17 Aug 2018 for Asterisk - The Open Source Telephony Project by  doxygen 1.6.1