Thu May 14 15:13:33 2009

Asterisk developer's documentation


iax2-parser.h File Reference

Implementation of the IAX2 protocol. More...

#include "asterisk/linkedlists.h"

Go to the source code of this file.

Data Structures

struct  iax_frame
struct  iax_ie_data
struct  iax_ies

Defines

#define DIRECTION_INGRESS   1
#define DIRECTION_OUTGRESS   2

Functions

void iax_frame_free (struct iax_frame *fr)
iax_frameiax_frame_new (int direction, int datalen, unsigned int cacheable)
void iax_frame_wrap (struct iax_frame *fr, struct ast_frame *f)
int iax_get_frames (void)
int iax_get_iframes (void)
int iax_get_oframes (void)
const char * iax_ie2str (int ie)
int iax_ie_append (struct iax_ie_data *ied, unsigned char ie)
int iax_ie_append_addr (struct iax_ie_data *ied, unsigned char ie, const struct sockaddr_in *sin)
int iax_ie_append_byte (struct iax_ie_data *ied, unsigned char ie, unsigned char dat)
int iax_ie_append_int (struct iax_ie_data *ied, unsigned char ie, unsigned int value)
int iax_ie_append_raw (struct iax_ie_data *ied, unsigned char ie, const void *data, int datalen)
int iax_ie_append_short (struct iax_ie_data *ied, unsigned char ie, unsigned short value)
int iax_ie_append_str (struct iax_ie_data *ied, unsigned char ie, const char *str)
int iax_parse_ies (struct iax_ies *ies, unsigned char *data, int datalen)
void iax_set_error (void(*output)(const char *data))
void iax_set_output (void(*output)(const char *data))
void iax_showframe (struct iax_frame *f, struct ast_iax2_full_hdr *fhi, int rx, struct sockaddr_in *sin, int datalen)


Detailed Description

Implementation of the IAX2 protocol.

Definition in file iax2-parser.h.


Define Documentation

#define DIRECTION_INGRESS   1

Definition at line 78 of file iax2-parser.h.

Referenced by iax_frame_free(), iax_frame_new(), and iaxfrdup2().

#define DIRECTION_OUTGRESS   2

Definition at line 79 of file iax2-parser.h.

Referenced by iax2_send(), iax_frame_free(), and send_trunk().


Function Documentation

void iax_frame_free ( struct iax_frame fr  ) 

Definition at line 1005 of file iax2-parser.c.

References ast_atomic_fetchadd_int(), AST_LIST_INSERT_HEAD, ast_threadstorage_get(), iax_frame::cacheable, iax_frame::direction, DIRECTION_INGRESS, DIRECTION_OUTGRESS, errorf, frame_cache, FRAME_CACHE_MAX_SIZE, free, and iax_frames::list.

Referenced by iax2_frame_free(), and network_thread().

01006 {
01007 #if !defined(LOW_MEMORY)
01008    struct iax_frames *iax_frames;
01009 #endif
01010 
01011    /* Note: does not remove from scheduler! */
01012    if (fr->direction == DIRECTION_INGRESS)
01013       ast_atomic_fetchadd_int(&iframes, -1);
01014    else if (fr->direction == DIRECTION_OUTGRESS)
01015       ast_atomic_fetchadd_int(&oframes, -1);
01016    else {
01017       errorf("Attempt to double free frame detected\n");
01018       return;
01019    }
01020    ast_atomic_fetchadd_int(&frames, -1);
01021 
01022 #if !defined(LOW_MEMORY)
01023    if (!fr->cacheable || !(iax_frames = ast_threadstorage_get(&frame_cache, sizeof(*iax_frames)))) {
01024       free(fr);
01025       return;
01026    }
01027 
01028    if (iax_frames->size < FRAME_CACHE_MAX_SIZE) {
01029       fr->direction = 0;
01030       AST_LIST_INSERT_HEAD(&iax_frames->list, fr, list);
01031       iax_frames->size++;
01032       return;
01033    }
01034 #endif
01035    free(fr);
01036 }

struct iax_frame* iax_frame_new ( int  direction,
int  datalen,
unsigned int  cacheable 
)

Definition at line 958 of file iax2-parser.c.

References iax_frame::afdatalen, ast_atomic_fetchadd_int(), ast_calloc, ast_calloc_cache, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_threadstorage_get(), DIRECTION_INGRESS, frame_cache, and iax_frames::list.

Referenced by iax2_send(), and iaxfrdup2().

00959 {
00960    struct iax_frame *fr = NULL;
00961 
00962 #if !defined(LOW_MEMORY)
00963    struct iax_frames *iax_frames;
00964 
00965    /* Attempt to get a frame from this thread's cache */
00966    if ((iax_frames = ast_threadstorage_get(&frame_cache, sizeof(*iax_frames)))) {
00967       AST_LIST_TRAVERSE_SAFE_BEGIN(&iax_frames->list, fr, list) {
00968          if (fr->afdatalen >= datalen) {
00969             size_t afdatalen = fr->afdatalen;
00970             AST_LIST_REMOVE_CURRENT(&iax_frames->list, list);
00971             iax_frames->size--;
00972             memset(fr, 0, sizeof(*fr));
00973             fr->afdatalen = afdatalen;
00974             break;
00975          }
00976       }
00977       AST_LIST_TRAVERSE_SAFE_END
00978    }
00979    if (!fr) {
00980       if (!(fr = ast_calloc_cache(1, sizeof(*fr) + datalen)))
00981          return NULL;
00982       fr->afdatalen = datalen;
00983    }
00984 #else
00985    if (!(fr = ast_calloc(1, sizeof(*fr) + datalen)))
00986       return NULL;
00987    fr->afdatalen = datalen;
00988 #endif
00989 
00990 
00991    fr->direction = direction;
00992    fr->retrans = -1;
00993    fr->cacheable = cacheable;
00994    
00995    if (fr->direction == DIRECTION_INGRESS)
00996       ast_atomic_fetchadd_int(&iframes, 1);
00997    else
00998       ast_atomic_fetchadd_int(&oframes, 1);
00999    
01000    ast_atomic_fetchadd_int(&frames, 1);
01001 
01002    return fr;
01003 }

void iax_frame_wrap ( struct iax_frame fr,
struct ast_frame f 
)

Definition at line 927 of file iax2-parser.c.

References iax_frame::af, iax_frame::afdata, iax_frame::afdatalen, AST_FORMAT_SLINEAR, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), ast_swapcopy_samples(), ast_frame::data, ast_frame::datalen, ast_frame::delivery, f, ast_frame::frametype, ast_frame::len, LOG_ERROR, ast_frame::mallocd, ast_frame::offset, ast_frame::samples, ast_frame::src, and ast_frame::subclass.

Referenced by iax2_send(), iaxfrdup2(), and socket_process().

00928 {
00929    fr->af.frametype = f->frametype;
00930    fr->af.subclass = f->subclass;
00931    fr->af.mallocd = 0;           /* Our frame is static relative to the container */
00932    fr->af.datalen = f->datalen;
00933    fr->af.samples = f->samples;
00934    fr->af.offset = AST_FRIENDLY_OFFSET;
00935    fr->af.src = f->src;
00936    fr->af.delivery.tv_sec = 0;
00937    fr->af.delivery.tv_usec = 0;
00938    fr->af.data = fr->afdata;
00939    fr->af.len = f->len;
00940    if (fr->af.datalen) {
00941       size_t copy_len = fr->af.datalen;
00942       if (copy_len > fr->afdatalen) {
00943          ast_log(LOG_ERROR, "Losing frame data because destination buffer size '%d' bytes not big enough for '%d' bytes in the frame\n",
00944             (int) fr->afdatalen, (int) fr->af.datalen);
00945          copy_len = fr->afdatalen;
00946       }
00947 #if __BYTE_ORDER == __LITTLE_ENDIAN
00948       /* We need to byte-swap slinear samples from network byte order */
00949       if ((fr->af.frametype == AST_FRAME_VOICE) && (fr->af.subclass == AST_FORMAT_SLINEAR)) {
00950          /* 2 bytes / sample for SLINEAR */
00951          ast_swapcopy_samples(fr->af.data, f->data, copy_len / 2);
00952       } else
00953 #endif
00954          memcpy(fr->af.data, f->data, copy_len);
00955    }
00956 }

int iax_get_frames ( void   ) 

Definition at line 1051 of file iax2-parser.c.

Referenced by iax2_show_stats().

01051 { return frames; }

int iax_get_iframes ( void   ) 

Definition at line 1052 of file iax2-parser.c.

Referenced by iax2_show_stats().

01052 { return iframes; }

int iax_get_oframes ( void   ) 

Definition at line 1053 of file iax2-parser.c.

Referenced by iax2_show_stats().

01053 { return oframes; }

const char* iax_ie2str ( int  ie  ) 

Definition at line 294 of file iax2-parser.c.

References ies, and name.

Referenced by iax_ie_append_raw(), and iax_parse_ies().

00295 {
00296    int x;
00297    for (x=0;x<(int)sizeof(ies) / (int)sizeof(ies[0]); x++) {
00298       if (ies[x].ie == ie)
00299          return ies[x].name;
00300    }
00301    return "Unknown IE";
00302 }

int iax_ie_append ( struct iax_ie_data ied,
unsigned char  ie 
)

Definition at line 604 of file iax2-parser.c.

References iax_ie_append_raw().

Referenced by iax2_call(), and iax_firmware_append().

00605 {
00606    return iax_ie_append_raw(ied, ie, NULL, 0);
00607 }

int iax_ie_append_addr ( struct iax_ie_data ied,
unsigned char  ie,
const struct sockaddr_in *  sin 
)

Definition at line 575 of file iax2-parser.c.

References iax_ie_append_raw().

Referenced by iax2_start_transfer(), and update_registry().

00576 {
00577    return iax_ie_append_raw(ied, ie, sin, (int)sizeof(struct sockaddr_in));
00578 }

int iax_ie_append_byte ( struct iax_ie_data ied,
unsigned char  ie,
unsigned char  dat 
)

Definition at line 599 of file iax2-parser.c.

References iax_ie_append_raw().

Referenced by __auth_reject(), __auto_hangup(), authenticate_request(), iax2_call(), iax2_hangup(), iax_provision_build(), and socket_process().

00600 {
00601    return iax_ie_append_raw(ied, ie, &dat, 1);
00602 }

int iax_ie_append_int ( struct iax_ie_data ied,
unsigned char  ie,
unsigned int  value 
)

Definition at line 580 of file iax2-parser.c.

References iax_ie_append_raw().

Referenced by cache_get_callno_locked(), construct_rr(), iax2_call(), iax2_start_transfer(), iax_firmware_append(), iax_provision_build(), socket_process(), try_transfer(), and update_registry().

00581 {
00582    unsigned int newval;
00583    newval = htonl(value);
00584    return iax_ie_append_raw(ied, ie, &newval, (int)sizeof(newval));
00585 }

int iax_ie_append_raw ( struct iax_ie_data ied,
unsigned char  ie,
const void *  data,
int  datalen 
)

Definition at line 560 of file iax2-parser.c.

References iax_ie_data::buf, errorf, iax_ie2str(), and iax_ie_data::pos.

Referenced by iax2_provision(), iax_firmware_append(), iax_ie_append(), iax_ie_append_addr(), iax_ie_append_byte(), iax_ie_append_int(), iax_ie_append_short(), and iax_ie_append_str().

00561 {
00562    char tmp[256];
00563    if (datalen > ((int)sizeof(ied->buf) - ied->pos)) {
00564       snprintf(tmp, (int)sizeof(tmp), "Out of space for ie '%s' (%d), need %d have %d\n", iax_ie2str(ie), ie, datalen, (int)sizeof(ied->buf) - ied->pos);
00565       errorf(tmp);
00566       return -1;
00567    }
00568    ied->buf[ied->pos++] = ie;
00569    ied->buf[ied->pos++] = datalen;
00570    memcpy(ied->buf + ied->pos, data, datalen);
00571    ied->pos += datalen;
00572    return 0;
00573 }

int iax_ie_append_short ( struct iax_ie_data ied,
unsigned char  ie,
unsigned short  value 
)

Definition at line 587 of file iax2-parser.c.

References iax_ie_append_raw().

Referenced by authenticate_request(), cache_get_callno_locked(), construct_rr(), dp_lookup(), iax2_call(), iax2_do_register(), iax2_start_transfer(), iax_provision_build(), registry_authrequest(), registry_rerequest(), socket_process(), and update_registry().

00588 {
00589    unsigned short newval;
00590    newval = htons(value);
00591    return iax_ie_append_raw(ied, ie, &newval, (int)sizeof(newval));
00592 }

int iax_ie_append_str ( struct iax_ie_data ied,
unsigned char  ie,
const char *  str 
)

Definition at line 594 of file iax2-parser.c.

References iax_ie_append_raw().

Referenced by __auth_reject(), __auto_hangup(), authenticate(), authenticate_request(), cache_get_callno_locked(), dp_lookup(), iax2_call(), iax2_do_register(), iax2_dprequest(), iax2_transfer(), iax_provision_build(), registry_authrequest(), registry_rerequest(), socket_process(), and update_registry().

00595 {
00596    return iax_ie_append_raw(ied, ie, str, strlen(str));
00597 }

int iax_parse_ies ( struct iax_ies ies,
unsigned char *  data,
int  datalen 
)

Definition at line 619 of file iax2-parser.c.

References errorf, get_unaligned_uint16(), get_unaligned_uint32(), iax_ie2str(), IAX_IE_ADSICPE, IAX_IE_APPARENT_ADDR, IAX_IE_AUTHMETHODS, IAX_IE_AUTOANSWER, IAX_IE_CALLED_CONTEXT, IAX_IE_CALLED_NUMBER, IAX_IE_CALLING_ANI, IAX_IE_CALLING_NAME, IAX_IE_CALLING_NUMBER, IAX_IE_CALLINGPRES, IAX_IE_CALLINGTNS, IAX_IE_CALLINGTON, IAX_IE_CALLNO, IAX_IE_CAPABILITY, IAX_IE_CAUSE, IAX_IE_CAUSECODE, IAX_IE_CHALLENGE, IAX_IE_CODEC_PREFS, IAX_IE_DATETIME, IAX_IE_DEVICETYPE, IAX_IE_DNID, IAX_IE_DPSTATUS, IAX_IE_ENCKEY, IAX_IE_ENCRYPTION, IAX_IE_FIRMWAREVER, IAX_IE_FORMAT, IAX_IE_FWBLOCKDATA, IAX_IE_FWBLOCKDESC, IAX_IE_IAX_UNKNOWN, IAX_IE_LANGUAGE, IAX_IE_MD5_RESULT, IAX_IE_MSGCOUNT, IAX_IE_MUSICONHOLD, IAX_IE_PASSWORD, IAX_IE_PROVVER, IAX_IE_RDNIS, IAX_IE_REFRESH, IAX_IE_RR_DELAY, IAX_IE_RR_DROPPED, IAX_IE_RR_JITTER, IAX_IE_RR_LOSS, IAX_IE_RR_OOO, IAX_IE_RR_PKTS, IAX_IE_RSA_RESULT, IAX_IE_SAMPLINGRATE, IAX_IE_SERVICEIDENT, IAX_IE_TRANSFERID, IAX_IE_USERNAME, IAX_IE_VERSION, IAX_RATE_8KHZ, ies, len(), and outputf.

Referenced by socket_process().

00620 {
00621    /* Parse data into information elements */
00622    int len;
00623    int ie;
00624    char tmp[256];
00625    memset(ies, 0, (int)sizeof(struct iax_ies));
00626    ies->msgcount = -1;
00627    ies->firmwarever = -1;
00628    ies->calling_ton = -1;
00629    ies->calling_tns = -1;
00630    ies->calling_pres = -1;
00631    ies->samprate = IAX_RATE_8KHZ;
00632    while(datalen >= 2) {
00633       ie = data[0];
00634       len = data[1];
00635       if (len > datalen - 2) {
00636          errorf("Information element length exceeds message size\n");
00637          return -1;
00638       }
00639       switch(ie) {
00640       case IAX_IE_CALLED_NUMBER:
00641          ies->called_number = (char *)data + 2;
00642          break;
00643       case IAX_IE_CALLING_NUMBER:
00644          ies->calling_number = (char *)data + 2;
00645          break;
00646       case IAX_IE_CALLING_ANI:
00647          ies->calling_ani = (char *)data + 2;
00648          break;
00649       case IAX_IE_CALLING_NAME:
00650          ies->calling_name = (char *)data + 2;
00651          break;
00652       case IAX_IE_CALLED_CONTEXT:
00653          ies->called_context = (char *)data + 2;
00654          break;
00655       case IAX_IE_USERNAME:
00656          ies->username = (char *)data + 2;
00657          break;
00658       case IAX_IE_PASSWORD:
00659          ies->password = (char *)data + 2;
00660          break;
00661       case IAX_IE_CODEC_PREFS:
00662          ies->codec_prefs = (char *)data + 2;
00663          break;
00664       case IAX_IE_CAPABILITY:
00665          if (len != (int)sizeof(unsigned int)) {
00666             snprintf(tmp, (int)sizeof(tmp), "Expecting capability to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00667             errorf(tmp);
00668          } else
00669             ies->capability = ntohl(get_unaligned_uint32(data + 2));
00670          break;
00671       case IAX_IE_FORMAT:
00672          if (len != (int)sizeof(unsigned int)) {
00673             snprintf(tmp, (int)sizeof(tmp), "Expecting format to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00674             errorf(tmp);
00675          } else
00676             ies->format = ntohl(get_unaligned_uint32(data + 2));
00677          break;
00678       case IAX_IE_LANGUAGE:
00679          ies->language = (char *)data + 2;
00680          break;
00681       case IAX_IE_VERSION:
00682          if (len != (int)sizeof(unsigned short)) {
00683             snprintf(tmp, (int)sizeof(tmp),  "Expecting version to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00684             errorf(tmp);
00685          } else
00686             ies->version = ntohs(get_unaligned_uint16(data + 2));
00687          break;
00688       case IAX_IE_ADSICPE:
00689          if (len != (int)sizeof(unsigned short)) {
00690             snprintf(tmp, (int)sizeof(tmp), "Expecting adsicpe to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00691             errorf(tmp);
00692          } else
00693             ies->adsicpe = ntohs(get_unaligned_uint16(data + 2));
00694          break;
00695       case IAX_IE_SAMPLINGRATE:
00696          if (len != (int)sizeof(unsigned short)) {
00697             snprintf(tmp, (int)sizeof(tmp), "Expecting samplingrate to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00698             errorf(tmp);
00699          } else
00700             ies->samprate = ntohs(get_unaligned_uint16(data + 2));
00701          break;
00702       case IAX_IE_DNID:
00703          ies->dnid = (char *)data + 2;
00704          break;
00705       case IAX_IE_RDNIS:
00706          ies->rdnis = (char *)data + 2;
00707          break;
00708       case IAX_IE_AUTHMETHODS:
00709          if (len != (int)sizeof(unsigned short))  {
00710             snprintf(tmp, (int)sizeof(tmp), "Expecting authmethods to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00711             errorf(tmp);
00712          } else
00713             ies->authmethods = ntohs(get_unaligned_uint16(data + 2));
00714          break;
00715       case IAX_IE_ENCRYPTION:
00716          if (len != (int)sizeof(unsigned short))  {
00717             snprintf(tmp, (int)sizeof(tmp), "Expecting encryption to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00718             errorf(tmp);
00719          } else
00720             ies->encmethods = ntohs(get_unaligned_uint16(data + 2));
00721          break;
00722       case IAX_IE_CHALLENGE:
00723          ies->challenge = (char *)data + 2;
00724          break;
00725       case IAX_IE_MD5_RESULT:
00726          ies->md5_result = (char *)data + 2;
00727          break;
00728       case IAX_IE_RSA_RESULT:
00729          ies->rsa_result = (char *)data + 2;
00730          break;
00731       case IAX_IE_APPARENT_ADDR:
00732          ies->apparent_addr = ((struct sockaddr_in *)(data + 2));
00733          break;
00734       case IAX_IE_REFRESH:
00735          if (len != (int)sizeof(unsigned short)) {
00736             snprintf(tmp, (int)sizeof(tmp),  "Expecting refresh to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00737             errorf(tmp);
00738          } else
00739             ies->refresh = ntohs(get_unaligned_uint16(data + 2));
00740          break;
00741       case IAX_IE_DPSTATUS:
00742          if (len != (int)sizeof(unsigned short)) {
00743             snprintf(tmp, (int)sizeof(tmp),  "Expecting dpstatus to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00744             errorf(tmp);
00745          } else
00746             ies->dpstatus = ntohs(get_unaligned_uint16(data + 2));
00747          break;
00748       case IAX_IE_CALLNO:
00749          if (len != (int)sizeof(unsigned short)) {
00750             snprintf(tmp, (int)sizeof(tmp),  "Expecting callno to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00751             errorf(tmp);
00752          } else
00753             ies->callno = ntohs(get_unaligned_uint16(data + 2));
00754          break;
00755       case IAX_IE_CAUSE:
00756          ies->cause = (char *)data + 2;
00757          break;
00758       case IAX_IE_CAUSECODE:
00759          if (len != 1) {
00760             snprintf(tmp, (int)sizeof(tmp), "Expecting causecode to be single byte but was %d\n", len);
00761             errorf(tmp);
00762          } else {
00763             ies->causecode = data[2];
00764          }
00765          break;
00766       case IAX_IE_IAX_UNKNOWN:
00767          if (len == 1)
00768             ies->iax_unknown = data[2];
00769          else {
00770             snprintf(tmp, (int)sizeof(tmp), "Expected single byte Unknown command, but was %d long\n", len);
00771             errorf(tmp);
00772          }
00773          break;
00774       case IAX_IE_MSGCOUNT:
00775          if (len != (int)sizeof(unsigned short)) {
00776             snprintf(tmp, (int)sizeof(tmp), "Expecting msgcount to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00777             errorf(tmp);
00778          } else
00779             ies->msgcount = ntohs(get_unaligned_uint16(data + 2));   
00780          break;
00781       case IAX_IE_AUTOANSWER:
00782          ies->autoanswer = 1;
00783          break;
00784       case IAX_IE_MUSICONHOLD:
00785          ies->musiconhold = 1;
00786          break;
00787       case IAX_IE_TRANSFERID:
00788          if (len != (int)sizeof(unsigned int)) {
00789             snprintf(tmp, (int)sizeof(tmp), "Expecting transferid to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00790             errorf(tmp);
00791          } else
00792             ies->transferid = ntohl(get_unaligned_uint32(data + 2));
00793          break;
00794       case IAX_IE_DATETIME:
00795          if (len != (int)sizeof(unsigned int)) {
00796             snprintf(tmp, (int)sizeof(tmp), "Expecting date/time to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00797             errorf(tmp);
00798          } else
00799             ies->datetime = ntohl(get_unaligned_uint32(data + 2));
00800          break;
00801       case IAX_IE_FIRMWAREVER:
00802          if (len != (int)sizeof(unsigned short)) {
00803             snprintf(tmp, (int)sizeof(tmp), "Expecting firmwarever to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00804             errorf(tmp);
00805          } else
00806             ies->firmwarever = ntohs(get_unaligned_uint16(data + 2));   
00807          break;
00808       case IAX_IE_DEVICETYPE:
00809          ies->devicetype = (char *)data + 2;
00810          break;
00811       case IAX_IE_SERVICEIDENT:
00812          ies->serviceident = (char *)data + 2;
00813          break;
00814       case IAX_IE_FWBLOCKDESC:
00815          if (len != (int)sizeof(unsigned int)) {
00816             snprintf(tmp, (int)sizeof(tmp), "Expected block desc to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00817             errorf(tmp);
00818          } else
00819             ies->fwdesc = ntohl(get_unaligned_uint32(data + 2));
00820          break;
00821       case IAX_IE_FWBLOCKDATA:
00822          ies->fwdata = data + 2;
00823          ies->fwdatalen = len;
00824          break;
00825       case IAX_IE_ENCKEY:
00826          ies->enckey = data + 2;
00827          ies->enckeylen = len;
00828          break;
00829       case IAX_IE_PROVVER:
00830          if (len != (int)sizeof(unsigned int)) {
00831             snprintf(tmp, (int)sizeof(tmp), "Expected provisioning version to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00832             errorf(tmp);
00833          } else {
00834             ies->provverpres = 1;
00835             ies->provver = ntohl(get_unaligned_uint32(data + 2));
00836          }
00837          break;
00838       case IAX_IE_CALLINGPRES:
00839          if (len == 1)
00840             ies->calling_pres = data[2];
00841          else {
00842             snprintf(tmp, (int)sizeof(tmp), "Expected single byte callingpres, but was %d long\n", len);
00843             errorf(tmp);
00844          }
00845          break;
00846       case IAX_IE_CALLINGTON:
00847          if (len == 1)
00848             ies->calling_ton = data[2];
00849          else {
00850             snprintf(tmp, (int)sizeof(tmp), "Expected single byte callington, but was %d long\n", len);
00851             errorf(tmp);
00852          }
00853          break;
00854       case IAX_IE_CALLINGTNS:
00855          if (len != (int)sizeof(unsigned short)) {
00856             snprintf(tmp, (int)sizeof(tmp), "Expecting callingtns to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00857             errorf(tmp);
00858          } else
00859             ies->calling_tns = ntohs(get_unaligned_uint16(data + 2));   
00860          break;
00861                case IAX_IE_RR_JITTER:
00862                        if (len != (int)sizeof(unsigned int)) {
00863                                snprintf(tmp, (int)sizeof(tmp), "Expected jitter rr to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00864                                errorf(tmp);
00865                        } else {
00866                                ies->rr_jitter = ntohl(get_unaligned_uint32(data + 2));
00867                        }
00868                        break;
00869                case IAX_IE_RR_LOSS:
00870                        if (len != (int)sizeof(unsigned int)) {
00871                                snprintf(tmp, (int)sizeof(tmp), "Expected loss rr to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00872                                errorf(tmp);
00873                        } else {
00874                                ies->rr_loss = ntohl(get_unaligned_uint32(data + 2));
00875                        }
00876                        break;
00877                case IAX_IE_RR_PKTS:
00878                        if (len != (int)sizeof(unsigned int)) {
00879                                snprintf(tmp, (int)sizeof(tmp), "Expected packets rr to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00880                                errorf(tmp);
00881                        } else {
00882                                ies->rr_pkts = ntohl(get_unaligned_uint32(data + 2));
00883                        }
00884                        break;
00885                case IAX_IE_RR_DELAY:
00886                        if (len != (int)sizeof(unsigned short)) {
00887                                snprintf(tmp, (int)sizeof(tmp), "Expected loss rr to be %d bytes long but was %d\n", (int)sizeof(unsigned short), len);
00888                         errorf(tmp);
00889                        } else {
00890                                ies->rr_delay = ntohs(get_unaligned_uint16(data + 2));
00891                        }
00892                        break;
00893       case IAX_IE_RR_DROPPED:
00894          if (len != (int)sizeof(unsigned int)) {
00895             snprintf(tmp, (int)sizeof(tmp), "Expected packets rr to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00896             errorf(tmp);
00897          } else {
00898             ies->rr_dropped = ntohl(get_unaligned_uint32(data + 2));
00899          }
00900          break;
00901       case IAX_IE_RR_OOO:
00902          if (len != (int)sizeof(unsigned int)) {
00903             snprintf(tmp, (int)sizeof(tmp), "Expected packets rr to be %d bytes long but was %d\n", (int)sizeof(unsigned int), len);
00904             errorf(tmp);
00905          } else {
00906             ies->rr_ooo = ntohl(get_unaligned_uint32(data + 2));
00907          }
00908          break;
00909       default:
00910          snprintf(tmp, (int)sizeof(tmp), "Ignoring unknown information element '%s' (%d) of length %d\n", iax_ie2str(ie), ie, len);
00911          outputf(tmp);
00912       }
00913       /* Overwrite information element with 0, to null terminate previous portion */
00914       data[0] = 0;
00915       datalen -= (len + 2);
00916       data += (len + 2);
00917    }
00918    /* Null-terminate last field */
00919    *data = '\0';
00920    if (datalen) {
00921       errorf("Invalid information element contents, strange boundary\n");
00922       return -1;
00923    }
00924    return 0;
00925 }

void iax_set_error ( void(*)(const char *data)  output  ) 

void iax_set_output ( void(*)(const char *data)  output  ) 

void iax_showframe ( struct iax_frame f,
struct ast_iax2_full_hdr fhi,
int  rx,
struct sockaddr_in *  sin,
int  datalen 
)

Definition at line 403 of file iax2-parser.c.

References AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_IAX, ast_inet_ntoa(), ast_iax2_full_hdr::csub, ast_iax2_full_hdr::dcallno, dump_ies(), f, IAX_FLAG_FULL, IAX_FLAG_RETRANS, iaxs, ast_iax2_full_hdr::iedata, ast_iax2_full_hdr::iseqno, ast_iax2_full_hdr::oseqno, outputf, ast_iax2_full_hdr::scallno, ast_iax2_full_hdr::ts, and ast_iax2_full_hdr::type.

Referenced by iax2_send(), raw_hangup(), send_packet(), and socket_process().

00404 {
00405    const char *frames[] = {
00406       "(0?)",
00407       "DTMF_E ",
00408       "VOICE  ",
00409       "VIDEO  ",
00410       "CONTROL",
00411       "NULL   ",
00412       "IAX    ",
00413       "TEXT   ",
00414       "IMAGE  ",
00415       "HTML   ",
00416       "CNG    ",
00417       "MODEM  ",
00418       "DTMF_B ",
00419    };
00420    const char *iaxs[] = {
00421       "(0?)",
00422       "NEW    ",
00423       "PING   ",
00424       "PONG   ",
00425       "ACK    ",
00426       "HANGUP ",
00427       "REJECT ",
00428       "ACCEPT ",
00429       "AUTHREQ",
00430       "AUTHREP",
00431       "INVAL  ",
00432       "LAGRQ  ",
00433       "LAGRP  ",
00434       "REGREQ ",
00435       "REGAUTH",
00436       "REGACK ",
00437       "REGREJ ",
00438       "REGREL ",
00439       "VNAK   ",
00440       "DPREQ  ",
00441       "DPREP  ",
00442       "DIAL   ",
00443       "TXREQ  ",
00444       "TXCNT  ",
00445       "TXACC  ",
00446       "TXREADY",
00447       "TXREL  ",
00448       "TXREJ  ",
00449       "QUELCH ",
00450       "UNQULCH",
00451       "POKE   ",
00452       "PAGE   ",
00453       "MWI    ",
00454       "UNSPRTD",
00455       "TRANSFR",
00456       "PROVISN",
00457       "FWDWNLD",
00458       "FWDATA ",
00459       "TXMEDIA"
00460    };
00461    const char *cmds[] = {
00462       "(0?)",
00463       "HANGUP ",
00464       "RING   ",
00465       "RINGING",
00466       "ANSWER ",
00467       "BUSY   ",
00468       "TKOFFHK",
00469       "OFFHOOK",
00470       "CONGSTN",
00471       "FLASH  ",
00472       "WINK   ",
00473       "OPTION ",
00474       "RDKEY  ",
00475       "RDUNKEY",
00476       "PROGRES",
00477       "PROCDNG",
00478       "HOLD   ",
00479       "UNHOLD ",
00480       "VIDUPDT", };
00481    struct ast_iax2_full_hdr *fh;
00482    char retries[20];
00483    char class2[20];
00484    char subclass2[20];
00485    const char *class;
00486    const char *subclass;
00487    char *dir;
00488    char tmp[512];
00489 
00490    switch(rx) {
00491    case 0:
00492       dir = "Tx";
00493       break;
00494    case 2:
00495       dir = "TE";
00496       break;
00497    case 3:
00498       dir = "RD";
00499       break;
00500    default:
00501       dir = "Rx";
00502       break;
00503    }
00504    if (f) {
00505       fh = f->data;
00506       snprintf(retries, sizeof(retries), "%03d", f->retries);
00507    } else {
00508       fh = fhi;
00509       if (ntohs(fh->dcallno) & IAX_FLAG_RETRANS)
00510          strcpy(retries, "Yes");
00511       else
00512          strcpy(retries, " No");
00513    }
00514    if (!(ntohs(fh->scallno) & IAX_FLAG_FULL)) {
00515       /* Don't mess with mini-frames */
00516       return;
00517    }
00518    if (fh->type >= (int)sizeof(frames)/(int)sizeof(frames[0])) {
00519       snprintf(class2, sizeof(class2), "(%d?)", fh->type);
00520       class = class2;
00521    } else {
00522       class = frames[(int)fh->type];
00523    }
00524    if (fh->type == AST_FRAME_DTMF_BEGIN || fh->type == AST_FRAME_DTMF_END) {
00525       sprintf(subclass2, "%c", fh->csub);
00526       subclass = subclass2;
00527    } else if (fh->type == AST_FRAME_IAX) {
00528       if (fh->csub >= (int)sizeof(iaxs)/(int)sizeof(iaxs[0])) {
00529          snprintf(subclass2, sizeof(subclass2), "(%d?)", fh->csub);
00530          subclass = subclass2;
00531       } else {
00532          subclass = iaxs[(int)fh->csub];
00533       }
00534    } else if (fh->type == AST_FRAME_CONTROL) {
00535       if (fh->csub >= (int)sizeof(cmds)/(int)sizeof(cmds[0])) {
00536          snprintf(subclass2, sizeof(subclass2), "(%d?)", fh->csub);
00537          subclass = subclass2;
00538       } else {
00539          subclass = cmds[(int)fh->csub];
00540       }
00541    } else {
00542       snprintf(subclass2, sizeof(subclass2), "%d", fh->csub);
00543       subclass = subclass2;
00544    }
00545    snprintf(tmp, sizeof(tmp), 
00546        "%s-Frame Retry[%s] -- OSeqno: %3.3d ISeqno: %3.3d Type: %s Subclass: %s\n",
00547        dir,
00548        retries, fh->oseqno, fh->iseqno, class, subclass);
00549    outputf(tmp);
00550    snprintf(tmp, sizeof(tmp), 
00551        "   Timestamp: %05lums  SCall: %5.5d  DCall: %5.5d [%s:%d]\n",
00552        (unsigned long)ntohl(fh->ts),
00553        ntohs(fh->scallno) & ~IAX_FLAG_FULL, ntohs(fh->dcallno) & ~IAX_FLAG_RETRANS,
00554        ast_inet_ntoa(sin->sin_addr), ntohs(sin->sin_port));
00555    outputf(tmp);
00556    if (fh->type == AST_FRAME_IAX)
00557       dump_ies(fh->iedata, datalen);
00558 }


Generated on Thu May 14 15:13:33 2009 for Asterisk - the Open Source PBX by  doxygen 1.4.7