BIG libpri-matt merge. Adding new event information and fixing the
parsing routing for DivertingLegInformation2 so that it can work with indefinite length-encoded ASN.1 parameters git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@209 2fbb986a-6c06-0410-b554-c9c1f0a7f128
This commit is contained in:
Matthew Fredrickson
parent
7f866680ad
commit
e4fbf8c388
4
libpri.h
4
libpri.h
@ -305,6 +305,7 @@ typedef struct pri_event_ring {
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int ani2; /* ANI II */
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char callednum[256]; /* Called number */
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char redirectingnum[256]; /* Redirecting number */
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char redirectingname[256]; /* Redirecting name */
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int redirectingreason; /* Reason for redirect */
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char useruserinfo[256]; /* User->User info */
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int flexible; /* Are we flexible with our channel selection? */
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@ -316,6 +317,9 @@ typedef struct pri_event_ring {
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char callingsubaddr[256]; /* Calling parties subaddress */
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int progress;
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int progressmask;
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char origcalledname[256];
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char origcallednum[256];
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int origredirectingreason;
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} pri_event_ring;
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typedef struct pri_event_hangup {
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115
pri_facility.c
115
pri_facility.c
@ -181,6 +181,25 @@ static int typeofnumber_for_q931(struct pri *pri, int ton)
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}
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}
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int asn1_name_decode(void * data, int len, char *namebuf, int buflen)
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{
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struct rose_component *comp = (struct rose_component*)data;
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int datalen = 0, res = 0;
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if (comp->len == ASN1_LEN_INDEF) {
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datalen = strlen(comp->data);
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res = datalen + 2;
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} else
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datalen = res = comp->len;
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if (datalen > buflen) {
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/* Truncate */
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datalen = buflen;
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memcpy(namebuf, comp->data, datalen);
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}
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return res;
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}
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int asn1_string_encode(unsigned char asn1_type, void *data, int len, int max_len, void *src, int src_len)
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{
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struct rose_component *comp = NULL;
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@ -204,18 +223,26 @@ static int rose_number_digits_decode(struct pri *pri, q931_call *call, unsigned
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int i = 0;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int datalen = 0;
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int res = 0;
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do {
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GET_COMPONENT(comp, i, vdata, len);
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CHECK_COMPONENT(comp, ASN1_NUMERICSTRING, "Don't know what to do with PublicPartyNumber ROSE component type 0x%x\n");
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if(comp->len > 20) {
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if(comp->len > 20 && comp->len != ASN1_LEN_INDEF) {
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pri_message("!! Oversized NumberDigits component (%d)\n", comp->len);
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return -1;
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}
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memcpy(value->partyaddress, comp->data, comp->len);
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value->partyaddress[comp->len] = '\0';
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if (comp->len == ASN1_LEN_INDEF) {
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datalen = strlen(comp->data);
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res = datalen + 2;
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} else
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res = datalen = comp->len;
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memcpy(value->partyaddress, comp->data, datalen);
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value->partyaddress[datalen] = '\0';
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return 0;
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return res + 2;
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}
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while(0);
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@ -228,6 +255,7 @@ static int rose_public_party_number_decode(struct pri *pri, q931_call *call, uns
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int ton;
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int res = 0;
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if (len < 2)
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return -1;
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@ -239,11 +267,12 @@ static int rose_public_party_number_decode(struct pri *pri, q931_call *call, uns
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NEXT_COMPONENT(comp, i);
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ton = typeofnumber_for_q931(pri, ton);
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if(rose_number_digits_decode(pri, call, &vdata[i], len-i, value))
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res = rose_number_digits_decode(pri, call, &vdata[i], len-i, value);
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if (res < 0)
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return -1;
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value->ton = ton;
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return 0;
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return res + 2;
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} while(0);
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return -1;
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@ -254,19 +283,22 @@ static int rose_address_decode(struct pri *pri, q931_call *call, unsigned char *
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int i = 0;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int res = 0;
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do {
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GET_COMPONENT(comp, i, vdata, len);
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switch(comp->type) {
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0): /* [0] unknownPartyNumber */
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if(rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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res = rose_number_digits_decode(pri, call, comp->data, comp->len, value);
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if (res < 0)
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return -1;
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value->npi = PRI_NPI_UNKNOWN;
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value->ton = PRI_TON_UNKNOWN;
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break;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_1): /* [1] publicPartyNumber */
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if(rose_public_party_number_decode(pri, call, comp->data, comp->len, value) != 0)
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res = rose_public_party_number_decode(pri, call, comp->data, comp->len, value);
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if (res < 0)
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return -1;
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value->npi = PRI_NPI_E163_E164;
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break;
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@ -281,7 +313,8 @@ static int rose_address_decode(struct pri *pri, q931_call *call, unsigned char *
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pri_message("!! dataPartyNumber isn't handled\n");
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return -1;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_4): /* [4] telexPartyNumber */
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if (rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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res = rose_number_digits_decode(pri, call, comp->data, comp->len, value);
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if (res < 0)
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return -1;
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value->npi = PRI_NPI_F69 /* ??? */;
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value->ton = PRI_TON_UNKNOWN /* ??? */;
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@ -292,7 +325,8 @@ static int rose_address_decode(struct pri *pri, q931_call *call, unsigned char *
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value->npi = PRI_NPI_PRIVATE;
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return -1;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_8): /* [8] nationalStandardPartyNumber */
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if (rose_number_digits_decode(pri, call, comp->data, comp->len, value))
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res = rose_number_digits_decode(pri, call, comp->data, comp->len, value);
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if (res < 0)
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return -1;
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value->npi = PRI_NPI_NATIONAL;
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value->ton = PRI_TON_NATIONAL;
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@ -304,7 +338,7 @@ static int rose_address_decode(struct pri *pri, q931_call *call, unsigned char *
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NEXT_COMPONENT(comp, i);
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if(i < len)
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pri_message("!! not all information is handled from Address component\n");
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return 0;
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return res;
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}
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while (0);
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@ -328,24 +362,24 @@ static int rose_presented_number_unscreened_decode(struct pri *pri, q931_call *c
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switch(comp->type) {
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_0): /* [0] presentationAllowedNumber */
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value->pres = PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
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return rose_address_decode(pri, call, comp->data, comp->len, value);
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return rose_address_decode(pri, call, comp->data, comp->len, value) + 2;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_1): /* [1] IMPLICIT presentationRestricted */
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if (comp->len != 0) { /* must be NULL */
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pri_error("!! Invalid PresentationRestricted component received (len != 0)\n");
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return -1;
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}
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value->pres = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
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return 0;
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return 2;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_TAG_2): /* [2] IMPLICIT numberNotAvailableDueToInterworking */
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if (comp->len != 0) { /* must be NULL */
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pri_error("!! Invalid NumberNotAvailableDueToInterworking component received (len != 0)\n");
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return -1;
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}
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value->pres = PRES_NUMBER_NOT_AVAILABLE;
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return 0;
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return 2;
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case (ASN1_CONTEXT_SPECIFIC | ASN1_CONSTRUCTOR | ASN1_TAG_3): /* [3] presentationRestrictedNumber */
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value->pres = PRES_PROHIB_USER_NUMBER_NOT_SCREENED;
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return rose_address_decode(pri, call, comp->data, comp->len, value);
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return rose_address_decode(pri, call, comp->data, comp->len, value) + 2;
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default:
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pri_message("Invalid PresentedNumberUnscreened component 0x%X\n", comp->type);
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}
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@ -361,10 +395,12 @@ static int rose_diverting_leg_information2_decode(struct pri *pri, q931_call *ca
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int i = 0;
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int diversion_counter;
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int diversion_reason;
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char origcalledname[50] = "", redirectingname[50] = "";
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struct addressingdataelements_presentednumberunscreened divertingnr;
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struct addressingdataelements_presentednumberunscreened originalcallednr;
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struct rose_component *comp = NULL;
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unsigned char *vdata = data;
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int res = 0;
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do {
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/* diversionCounter stuff */
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@ -386,23 +422,43 @@ static int rose_diverting_leg_information2_decode(struct pri *pri, q931_call *ca
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for(; i < len; NEXT_COMPONENT(comp, i)) {
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GET_COMPONENT(comp, i, vdata, len);
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switch(comp->type) {
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case 0xA1: /* divertingnr: presentednumberunscreened */
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if(rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &divertingnr) != 0)
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switch(comp->type & ASN1_TYPE_MASK) {
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case ASN1_TAG_0:
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call->origredirectingreason = redirectingreason_for_q931(pri, comp->data[0]);
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if (pri->debug & PRI_DEBUG_APDU)
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pri_message(" Received reason for original redirection %d\n", call->origredirectingreason);
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break;
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case ASN1_TAG_1: /* divertingnr: presentednumberunscreened */
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res = rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &divertingnr);
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/* TODO: Fix indefinite length form hacks */
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comp->len = res;
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if (res < 0)
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return -1;
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if (pri->debug & PRI_DEBUG_APDU) {
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pri_message(" Received divertingNr '%s'\n", divertingnr.partyaddress);
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pri_message(" ton = %d, pres = %d, npi = %d\n", divertingnr.ton, divertingnr.pres, divertingnr.npi);
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}
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break;
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case 0xA2: /* originalCalledNr: PresentedNumberUnscreened */
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if(rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &originalcallednr) != 0)
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case ASN1_TAG_2: /* originalCalledNr: PresentedNumberUnscreened */
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res = rose_presented_number_unscreened_decode(pri, call, comp->data, comp->len, &originalcallednr);
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if (res < 0)
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return -1;
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comp->len = res;
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if (pri->debug & PRI_DEBUG_APDU) {
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pri_message(" Received originalcallednr '%s'\n", originalcallednr.partyaddress);
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pri_message(" ton = %d, pres = %d, npi = %d\n", originalcallednr.ton, originalcallednr.pres, originalcallednr.npi);
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}
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break;
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case ASN1_TAG_3:
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comp->len = asn1_name_decode(comp->data, comp->len, redirectingname, sizeof(redirectingname));
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if (pri->debug & PRI_DEBUG_APDU)
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pri_message(" Received RedirectingName '%s'\n", redirectingname);
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break;
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case ASN1_TAG_4:
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comp->len = asn1_name_decode(comp->data, comp->len, origcalledname, sizeof(origcalledname));
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if (pri->debug & PRI_DEBUG_APDU)
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pri_message(" Received Originally Called Name '%s'\n", origcalledname);
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break;
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default:
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pri_message("!! Invalid DivertingLegInformation2 component received 0x%X\n", comp->type);
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return -1;
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@ -418,12 +474,19 @@ static int rose_diverting_leg_information2_decode(struct pri *pri, q931_call *ca
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strncpy(call->redirectingnum, divertingnr.partyaddress, sizeof(call->redirectingnum)-1);
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call->redirectingnum[sizeof(call->redirectingnum)-1] = '\0';
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}
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else if (originalcallednr.pres >= 0) {
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call->redirectingplan = originalcallednr.npi;
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call->redirectingpres = originalcallednr.pres;
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call->redirectingreason = diversion_reason;
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strncpy(call->redirectingnum, originalcallednr.partyaddress, sizeof(call->redirectingnum)-1);
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call->redirectingnum[sizeof(call->redirectingnum)-1] = '\0';
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if (originalcallednr.pres >= 0) {
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call->origcalledplan = originalcallednr.npi;
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call->origcalledpres = originalcallednr.pres;
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strncpy(call->origcallednum, originalcallednr.partyaddress, sizeof(call->origcallednum)-1);
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call->origcallednum[sizeof(call->origcallednum)-1] = '\0';
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}
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if (strlen(redirectingname) > 0) {
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strncpy(call->redirectingname, redirectingname, sizeof(call->redirectingname));
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call->redirectingname[sizeof(call->redirectingname)-1] = '\0';
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}
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if (strlen(origcalledname) > 0) {
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strncpy(call->origcalledname, origcalledname, sizeof(call->origcalledname));
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call->origcalledname[sizeof(call->origcalledname)-1] = '\0';
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}
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return 0;
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}
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@ -107,6 +107,9 @@
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#define ASN1_CONTEXT_SPECIFIC 0x80
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#define ASN1_PRIVATE 0xc0
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/* ASN.1 Length masks */
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#define ASN1_LEN_INDEF 0x80
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#define INVOKE_OPERATION_INT __USE_ASN1_INTEGER
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#define INVOKE_OBJECT_ID __USE_ASN1_OBJECTIDENTIFIER
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@ -225,6 +228,9 @@ extern int rose_invoke_decode(struct pri *pri, struct q931_call *call, unsigned
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extern int asn1_string_encode(unsigned char asn1_type, void *data, int len, int max_len, void *src, int src_len);
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/* Get Name types from ASN.1 */
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extern int asn1_name_decode(void * data, int len, char *namebuf, int buflen);
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extern int typeofnumber_from_q931(struct pri *pri, int ton);
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extern int redirectingreason_from_q931(struct pri *pri, int redirectingreason);
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@ -211,10 +211,19 @@ struct q931_call {
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int retranstimer; /* Timer for retransmitting DISC */
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int t308_timedout; /* Whether t308 timed out once */
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int redirectingplan;
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int redirectingpres;
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int redirectingreason;
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char redirectingnum[256];
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char redirectingnum[256]; /* Number of redirecting party */
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char redirectingname[256]; /* Name of redirecting party */
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/* Filled in cases of multiple diversions */
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int origcalledplan;
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int origcalledpres;
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int origredirectingreason; /* Original reason for redirect (in cases of multiple redirects) */
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char origcalledname[256]; /* Original name of person being called */
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char origcallednum[256]; /* Orignal number of person being called */
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int useruserprotocoldisc;
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char useruserinfo[256];
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11
q931.c
11
q931.c
@ -3151,7 +3151,13 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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c->redirectingplan = -1;
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c->redirectingpres = -1;
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c->redirectingreason = -1;
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c->origcalledplan = -1;
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c->origcalledpres = -1;
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c->origredirectingreason = -1;
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strcpy(c->redirectingnum, "");
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strcpy(c->origcallednum, "");
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strcpy(c->redirectingname, "");
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strcpy(c->origcalledname, "");
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c->useruserprotocoldisc = -1;
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strcpy(c->useruserinfo, "");
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c->complete = 0;
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@ -3357,8 +3363,13 @@ int q931_receive(struct pri *pri, q931_h *h, int len)
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pri->ev.ring.calledplan = c->calledplan;
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strncpy(pri->ev.ring.callingsubaddr, c->callingsubaddr, sizeof(pri->ev.ring.callingsubaddr) - 1);
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strncpy(pri->ev.ring.callednum, c->callednum, sizeof(pri->ev.ring.callednum) - 1);
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strncpy(pri->ev.ring.origcalledname, c->origcalledname, sizeof(pri->ev.ring.origcalledname) - 1);
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strncpy(pri->ev.ring.origcallednum, c->origcallednum, sizeof(pri->ev.ring.origcallednum) - 1);
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strncpy(pri->ev.ring.redirectingnum, c->redirectingnum, sizeof(pri->ev.ring.redirectingnum) - 1);
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strncpy(pri->ev.ring.redirectingname, c->redirectingname, sizeof(pri->ev.ring.redirectingname) - 1);
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strncpy(pri->ev.ring.useruserinfo, c->useruserinfo, sizeof(pri->ev.ring.useruserinfo) - 1);
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pri->ev.ring.redirectingreason = c->redirectingreason;
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pri->ev.ring.origredirectingreason = c->origredirectingreason;
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pri->ev.ring.flexible = ! (c->chanflags & FLAG_EXCLUSIVE);
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pri->ev.ring.cref = c->cr;
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pri->ev.ring.call = c;
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