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freebsd-nq/sys/netatm/uni/unisig_subr.c
Peter Wemm c3aac50f28 $Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00

1311 lines
33 KiB
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/*
*
* ===================================
* HARP | Host ATM Research Platform
* ===================================
*
*
* This Host ATM Research Platform ("HARP") file (the "Software") is
* made available by Network Computing Services, Inc. ("NetworkCS")
* "AS IS". NetworkCS does not provide maintenance, improvements or
* support of any kind.
*
* NETWORKCS MAKES NO WARRANTIES OR REPRESENTATIONS, EXPRESS OR IMPLIED,
* INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE, AS TO ANY ELEMENT OF THE
* SOFTWARE OR ANY SUPPORT PROVIDED IN CONNECTION WITH THIS SOFTWARE.
* In no event shall NetworkCS be responsible for any damages, including
* but not limited to consequential damages, arising from or relating to
* any use of the Software or related support.
*
* Copyright 1994-1998 Network Computing Services, Inc.
*
* Copies of this Software may be made, however, the above copyright
* notice must be reproduced on all copies.
*
* @(#) $FreeBSD$
*
*/
/*
* ATM Forum UNI 3.0/3.1 Signalling Manager
* ----------------------------------------
*
* Subroutines
*
*/
#include <netatm/kern_include.h>
#include <netatm/uni/unisig.h>
#include <netatm/uni/unisig_var.h>
#include <netatm/uni/unisig_msg.h>
#ifndef lint
__RCSID("@(#) $FreeBSD$");
#endif
/*
* External variables
*/
extern struct ie_aalp ie_aalp_absent;
extern struct ie_clrt ie_clrt_absent;
extern struct ie_bbcp ie_bbcp_absent;
extern struct ie_bhli ie_bhli_absent;
extern struct ie_blli ie_blli_absent;
extern struct ie_clst ie_clst_absent;
extern struct ie_cdad ie_cdad_absent;
extern struct ie_cdsa ie_cdsa_absent;
extern struct ie_cgad ie_cgad_absent;
extern struct ie_cgsa ie_cgsa_absent;
extern struct ie_caus ie_caus_absent;
extern struct ie_cnid ie_cnid_absent;
extern struct ie_qosp ie_qosp_absent;
extern struct ie_brpi ie_brpi_absent;
extern struct ie_rsti ie_rsti_absent;
extern struct ie_blsh ie_blsh_absent;
extern struct ie_bnsh ie_bnsh_absent;
extern struct ie_bsdc ie_bsdc_absent;
extern struct ie_trnt ie_trnt_absent;
extern struct ie_eprf ie_eprf_absent;
extern struct ie_epst ie_epst_absent;
/*
* Set a User Location cause code in an ATM attribute block
*
* Arguments:
* aap pointer to attribute block
* cause cause code
*
* Returns:
* none
*
*/
void
unisig_cause_attr_from_user(aap, cause)
Atm_attributes *aap;
int cause;
{
if (cause == T_ATM_ABSENT)
return;
/*
* Set the fields in the attribute block
*/
aap->cause.tag = T_ATM_PRESENT;
aap->cause.v.coding_standard = T_ATM_ITU_CODING;
aap->cause.v.location = T_ATM_LOC_USER;
aap->cause.v.cause_value = cause;
KM_ZERO(aap->cause.v.diagnostics,
sizeof(aap->cause.v.diagnostics));
}
/*
* Set a cause code in an ATM attribute block from a Cause IE
*
* Arguments:
* aap pointer to attribute block
* iep pointer to Cause IE
*
* Returns:
* none
*
*/
void
unisig_cause_attr_from_ie(aap, iep)
Atm_attributes *aap;
struct ie_generic *iep;
{
/*
* Set the fields in the attribute block
*/
aap->cause.tag = T_ATM_PRESENT;
aap->cause.v.coding_standard = iep->ie_coding;
aap->cause.v.location = iep->ie_caus_loc;
aap->cause.v.cause_value = iep->ie_caus_cause;
KM_ZERO(aap->cause.v.diagnostics, sizeof(aap->cause.v.diagnostics));
KM_COPY(iep->ie_caus_diagnostic, aap->cause.v.diagnostics,
MIN(sizeof(aap->cause.v.diagnostics), iep->ie_caus_diag_len));
}
/*
* Open a UNI VCC
*
* Called when a user wants to open a VC. This function will construct
* a VCCB and, if we are opening an SVC, call the Q.2931 VC state
* machine. The user will have to wait for a notify event to be sure
* the SVC is fully open.
*
* Must be called at splnet.
*
* Arguments:
* usp pointer to UNISIG protocol instance
* cvp pointer to connection parameters for the VCC
*
* Returns:
* 0 VCC creation successful
* errno VCC setup failed - reason indicated
*
*/
int
unisig_open_vcc(usp, cvp)
struct unisig *usp;
Atm_connvc *cvp;
{
struct atm_pif *pip = usp->us_pif;
struct unisig_vccb *uvp;
Atm_addr_pvc *pvp;
int err, pvc;
ATM_DEBUG2("unisig_open_vcc: usp=%p, cvp=%p\n", usp, cvp);
/*
* Validate user parameters. AAL and encapsulation are
* checked by the connection manager
*/
/*
* Check called party address(es)
*/
if(cvp->cvc_attr.called.tag != T_ATM_PRESENT ||
cvp->cvc_attr.called.addr.address_format ==
T_ATM_ABSENT) {
return(EINVAL);
}
switch (cvp->cvc_attr.called.addr.address_format) {
case T_ATM_PVC_ADDR:
/*
* Make sure VPI/VCI is valid
*/
pvc = 1;
pvp = (Atm_addr_pvc *)cvp->cvc_attr.called.addr.address;
if ((ATM_PVC_GET_VPI(pvp) > pip->pif_maxvpi) ||
(ATM_PVC_GET_VCI(pvp) == 0) ||
(ATM_PVC_GET_VCI(pvp) > pip->pif_maxvci)) {
return(ERANGE);
}
/*
* Make sure VPI/VCI is not already in use
*/
if (unisig_find_vpvc(usp,
ATM_PVC_GET_VPI(pvp),
ATM_PVC_GET_VCI(pvp), 0)) {
return(EEXIST);
}
ATM_DEBUG2("unisig_open_vcc: VPI.VCI=%d.%d\n",
ATM_PVC_GET_VPI(pvp),
ATM_PVC_GET_VCI(pvp));
break;
case T_ATM_ENDSYS_ADDR:
/*
* Check signalling state
*/
pvc = 0;
pvp = NULL;
if (usp->us_state != UNISIG_ACTIVE) {
return(ENETDOWN);
}
/*
* Make sure there's no subaddress
*/
if (cvp->cvc_attr.called.subaddr.address_format !=
T_ATM_ABSENT) {
return(EINVAL);
}
break;
case T_ATM_E164_ADDR:
/*
* Check signalling state
*/
pvc = 0;
pvp = NULL;
if (usp->us_state != UNISIG_ACTIVE) {
return(ENETDOWN);
}
/*
* Check destination address format
*/
if (cvp->cvc_attr.called.subaddr.address_format !=
T_ATM_ENDSYS_ADDR &&
cvp->cvc_attr.called.subaddr.address_format !=
T_ATM_ABSENT) {
return(EINVAL);
}
break;
default:
return(EPROTONOSUPPORT);
}
/*
* Check that this is for the same interface UNISIG uses
*/
if (!cvp->cvc_attr.nif ||
cvp->cvc_attr.nif->nif_pif != usp->us_pif) {
return(EINVAL);
}
/*
* Allocate control block for VCC
*/
uvp = (struct unisig_vccb *)atm_allocate(&unisig_vcpool);
if (uvp == NULL) {
return(ENOMEM);
}
/*
* Fill in VCCB
*/
if (pvc) {
uvp->uv_type = VCC_PVC | VCC_IN | VCC_OUT;
uvp->uv_vpi = ATM_PVC_GET_VPI(pvp);
uvp->uv_vci = ATM_PVC_GET_VCI(pvp);
uvp->uv_sstate = (usp->us_state == UNISIG_ACTIVE ?
UNI_PVC_ACTIVE : UNI_PVC_ACT_DOWN);
uvp->uv_ustate = VCCU_OPEN;
} else {
uvp->uv_type = VCC_SVC | VCC_IN | VCC_OUT;
uvp->uv_sstate = UNI_NULL;
uvp->uv_ustate = VCCU_POPEN;
}
uvp->uv_proto = usp->us_pif->pif_sigmgr->sm_proto;
uvp->uv_pif = usp->us_pif;
uvp->uv_nif = cvp->cvc_attr.nif;
uvp->uv_connvc = cvp;
uvp->uv_tstamp = time_second;
/*
* Put VCCB on UNISIG queue
*/
ENQUEUE(uvp, struct unisig_vccb, uv_sigelem, usp->us_vccq);
/*
* Call the VC state machine if this is an SVC
*/
if (!pvc) {
err = unisig_vc_state(usp, uvp, UNI_VC_SETUP_CALL,
(struct unisig_msg *) 0);
if (err) {
/*
* On error, delete the VCCB
*/
DEQUEUE(uvp, struct unisig_vccb, uv_sigelem,
usp->us_vccq);
atm_free((caddr_t)uvp);
return(err);
}
}
/*
* Link VCCB to VCC connection block
*/
cvp->cvc_vcc = (struct vccb *) uvp;
return(0);
}
/*
* Close a UNISIG VCC
*
* Called when a user wants to close a VCC. This function will clean
* up the VCCB and, for an SVC, send a close request.
*
* Must be called at splnet.
*
* Arguments:
* usp pointer to UNISIG protocol instance
* uvp pointer to VCCB for the VCC to be closed
*
* Returns:
* 0 VCC is now closed
* errno error encountered
*/
int
unisig_close_vcc(usp, uvp)
struct unisig *usp;
struct unisig_vccb *uvp;
{
int err = 0;
ATM_DEBUG2("unisig_close_vcc: uvp=%p, state=%d\n", uvp,
uvp->uv_sstate);
/*
* Check that this is for the same interface UNISIG uses
*/
if (uvp->uv_pif != usp->us_pif) {
return (EINVAL);
}
/*
* Mark the close time.
*/
uvp->uv_tstamp = time_second;
/*
* Process based on the connection type
*/
if (uvp->uv_type & VCC_PVC) {
uvp->uv_sstate = UNI_FREE;
uvp->uv_ustate = VCCU_CLOSED;
} else if (uvp->uv_type & VCC_SVC) {
/*
* Call the VC state machine
*/
uvp->uv_ustate = VCCU_CLOSED;
err = unisig_vc_state(usp, uvp, UNI_VC_RELEASE_CALL,
(struct unisig_msg *) 0);
}
/*
* Wait for user to free resources
*/
return(err);
}
/*
* Clear a UNISIG VCC
*
* Called to internally clear a VCC. No external protocol is
* initiated, the VCC is just closed and the owner is notified.
*
* Must be called at splnet.
*
* Arguments:
* usp pointer to UNISIG protocol instance
* uvp pointer to VCCB for the VCC to be closed
* cause cause code giving the reason for the close
*
* Returns:
* 0 VCC is closed
* errno error encountered
*/
int
unisig_clear_vcc(usp, uvp, cause)
struct unisig *usp;
struct unisig_vccb *uvp;
int cause;
{
u_char outstate;
ATM_DEBUG3("unisig_clear_vcc: uvp=%p, state=%d, cause=%d\n",
uvp, uvp->uv_sstate, cause);
/*
* Check that this is for the same interface UNISIG uses
*/
if (uvp->uv_pif != usp->us_pif) {
return (EINVAL);
}
/*
* Kill any possible timer
*/
UNISIG_VC_CANCEL((struct vccb *) uvp);
/*
* Mark the close time.
*/
uvp->uv_tstamp = time_second;
/*
* Close the VCC and notify the user
*/
outstate = uvp->uv_sstate;
uvp->uv_sstate = UNI_FREE;
uvp->uv_ustate = VCCU_CLOSED;
if (outstate == UNI_ACTIVE ||
outstate == UNI_CALL_INITIATED ||
outstate == UNI_CALL_OUT_PROC ||
outstate == UNI_CONNECT_REQUEST ||
outstate == UNI_RELEASE_REQUEST ||
outstate == UNI_RELEASE_IND ||
outstate == UNI_SSCF_RECOV ||
outstate == UNI_PVC_ACT_DOWN ||
outstate == UNI_PVC_ACTIVE) {
unisig_cause_attr_from_user(&uvp->uv_connvc->cvc_attr, cause);
atm_cm_cleared(uvp->uv_connvc);
}
/*
* Wait for user to free resources
*/
return(0);
}
#ifdef NOTDEF
/*
* Reset the switch state
*
* Arguments:
* usp pointer to UNISIG protocol instance
*
* Returns:
* none
*
*/
void
unisig_switch_reset(usp, cause)
struct unisig *usp;
int cause;
{
int s;
struct unisig_vccb *uvp, *vnext;
ATM_DEBUG2("unisig_switch_reset: usp=%p, cause=%d\n",
usp, cause);
/*
* Terminate all of our VCCs
*/
s = splnet();
for (uvp = Q_HEAD(usp->us_vccq, struct unisig_vccb); uvp;
uvp = vnext) {
vnext = Q_NEXT(uvp, struct unisig_vccb, uv_sigelem);
if (uvp->uv_type & VCC_SVC) {
/*
* Close the SVC and notify the owner
*/
(void)unisig_clear_vcc(usp, uvp,
T_ATM_CAUSE_NORMAL_CALL_CLEARING);
} else if (uvp->uv_type & VCC_PVC) {
/*
* Notify PVC owner of the state change
*/
switch(cause) {
case UNI_DOWN:
uvp->uv_sstate = UNI_PVC_ACT_DOWN;
break;
case UNI_UP:
uvp->uv_sstate = UNI_PVC_ACTIVE;
break;
}
atm_cm_cleared(uvp->uv_connvc, cause);
} else {
log(LOG_ERR, "unisig: invalid VCC type: vccb=%p, type=%d\n",
uvp, uvp->uv_type);
}
}
(void) splx(s);
}
#endif
/*
* Copy connection parameters from UNI 3.0 message IEs into
* an attribute block
*
* Arguments:
* usp pointer to UNISIG protocol instance
* msg pointer to the SETUP message
* ap pointer to the attribute block
*
* Returns:
* none
*
*/
void
unisig_save_attrs(usp, msg, ap)
struct unisig *usp;
struct unisig_msg *msg;
Atm_attributes *ap;
{
/*
* Sanity check
*/
if (!msg || !ap)
return;
/*
* Save the AAL parameters (AAL 3/4 and AAL 5 only)
*/
if (msg->msg_ie_aalp) {
struct ie_generic *aalp = msg->msg_ie_aalp;
switch(msg->msg_ie_aalp->ie_aalp_aal_type) {
case UNI_IE_AALP_AT_AAL3:
ap->aal.tag = T_ATM_PRESENT;
ap->aal.type =
msg->msg_ie_aalp->ie_aalp_aal_type;
ap->aal.v.aal4.forward_max_SDU_size =
msg->msg_ie_aalp->ie_aalp_4_fwd_max_sdu;
ap->aal.v.aal4.backward_max_SDU_size =
msg->msg_ie_aalp->ie_aalp_4_bkwd_max_sdu;
ap->aal.v.aal4.SSCS_type =
msg->msg_ie_aalp->ie_aalp_4_sscs_type;
if (aalp->ie_aalp_4_mid_range == T_ATM_ABSENT) {
ap->aal.v.aal4.mid_low = T_ATM_ABSENT;
ap->aal.v.aal4.mid_high = T_ATM_ABSENT;
} else {
if (usp->us_proto == ATM_SIG_UNI30) {
ap->aal.v.aal4.mid_low = 0;
ap->aal.v.aal4.mid_high =
aalp->ie_aalp_4_mid_range
& UNI_IE_AALP_A3_R_MASK;
} else {
ap->aal.v.aal4.mid_low =
(aalp->ie_aalp_4_mid_range >>
UNI_IE_AALP_A3_R_SHIFT)
& UNI_IE_AALP_A3_R_MASK;
ap->aal.v.aal4.mid_high =
aalp->ie_aalp_4_mid_range
& UNI_IE_AALP_A3_R_MASK;
}
}
break;
case UNI_IE_AALP_AT_AAL5:
ap->aal.tag = T_ATM_PRESENT;
ap->aal.type =
msg->msg_ie_aalp->ie_aalp_aal_type;
ap->aal.v.aal5.forward_max_SDU_size =
msg->msg_ie_aalp->ie_aalp_5_fwd_max_sdu;
ap->aal.v.aal5.backward_max_SDU_size =
msg->msg_ie_aalp->ie_aalp_5_bkwd_max_sdu;
ap->aal.v.aal5.SSCS_type =
msg->msg_ie_aalp->ie_aalp_5_sscs_type;
break;
}
}
/*
* Save traffic descriptor attributes
*/
if (msg->msg_ie_clrt) {
ap->traffic.tag = T_ATM_PRESENT;
ap->traffic.v.forward.PCR_high_priority =
msg->msg_ie_clrt->ie_clrt_fwd_peak;
ap->traffic.v.forward.PCR_all_traffic =
msg->msg_ie_clrt->ie_clrt_fwd_peak_01;
ap->traffic.v.forward.SCR_high_priority =
msg->msg_ie_clrt->ie_clrt_fwd_sust;
ap->traffic.v.forward.SCR_all_traffic =
msg->msg_ie_clrt->ie_clrt_fwd_sust_01;
ap->traffic.v.forward.MBS_high_priority =
msg->msg_ie_clrt->ie_clrt_fwd_burst;
ap->traffic.v.forward.MBS_all_traffic =
msg->msg_ie_clrt->ie_clrt_fwd_burst_01;
ap->traffic.v.backward.PCR_high_priority =
msg->msg_ie_clrt->ie_clrt_bkwd_peak;
ap->traffic.v.backward.PCR_all_traffic =
msg->msg_ie_clrt->ie_clrt_bkwd_peak_01;
ap->traffic.v.backward.SCR_high_priority =
msg->msg_ie_clrt->ie_clrt_bkwd_sust;
ap->traffic.v.backward.SCR_all_traffic =
msg->msg_ie_clrt->ie_clrt_bkwd_sust_01;
ap->traffic.v.backward.MBS_high_priority =
msg->msg_ie_clrt->ie_clrt_bkwd_burst;
ap->traffic.v.backward.MBS_all_traffic =
msg->msg_ie_clrt->ie_clrt_bkwd_burst_01;
ap->traffic.v.best_effort =
msg->msg_ie_clrt->ie_clrt_best_effort;
if (msg->msg_ie_clrt->ie_clrt_tm_options ==
T_ATM_ABSENT) {
ap->traffic.v.forward.tagging = T_NO;
ap->traffic.v.backward.tagging = T_NO;
} else {
ap->traffic.v.forward.tagging =
(msg->msg_ie_clrt->ie_clrt_tm_options &
UNI_IE_CLRT_TM_FWD_TAG) != 0;
ap->traffic.v.backward.tagging =
(msg->msg_ie_clrt->ie_clrt_tm_options &
UNI_IE_CLRT_TM_BKWD_TAG) != 0;
}
}
/*
* Save broadband bearer attributes
*/
if (msg->msg_ie_bbcp) {
ap->bearer.tag = T_ATM_PRESENT;
ap->bearer.v.bearer_class =
msg->msg_ie_bbcp->ie_bbcp_bearer_class;
ap->bearer.v.traffic_type =
msg->msg_ie_bbcp->ie_bbcp_traffic_type;
ap->bearer.v.timing_requirements =
msg->msg_ie_bbcp->ie_bbcp_timing_req;
ap->bearer.v.clipping_susceptibility =
msg->msg_ie_bbcp->ie_bbcp_clipping;
ap->bearer.v.connection_configuration =
msg->msg_ie_bbcp->ie_bbcp_conn_config;
}
/*
* Save broadband high layer attributes
*/
if (msg->msg_ie_bhli) {
ap->bhli.tag = T_ATM_PRESENT;
ap->bhli.v.ID_type = msg->msg_ie_bhli->ie_bhli_type;
switch(ap->bhli.v.ID_type) {
case T_ATM_ISO_APP_ID:
KM_COPY(msg->msg_ie_bhli->ie_bhli_info,
ap->bhli.v.ID.ISO_ID,
sizeof(ap->bhli.v.ID.ISO_ID));
break;
case T_ATM_USER_APP_ID:
KM_COPY(msg->msg_ie_bhli->ie_bhli_info,
ap->bhli.v.ID.user_defined_ID,
sizeof(ap->bhli.v.ID.user_defined_ID));
break;
case T_ATM_VENDOR_APP_ID:
KM_COPY(msg->msg_ie_bhli->ie_bhli_info,
ap->bhli.v.ID.vendor_ID.OUI,
sizeof(ap->bhli.v.ID.vendor_ID.OUI));
KM_COPY(&msg->msg_ie_bhli->ie_bhli_info[sizeof(ap->bhli.v.ID.vendor_ID.OUI)-1],
ap->bhli.v.ID.vendor_ID.app_ID,
sizeof(ap->bhli.v.ID.vendor_ID.app_ID));
break;
}
}
/*
* Save Broadband low layer, user layer 2 and 3 attributes
*/
if (msg->msg_ie_blli) {
/*
* Layer 2 parameters
*/
switch(msg->msg_ie_blli->ie_blli_l2_id) {
case UNI_IE_BLLI_L2P_ISO1745:
case UNI_IE_BLLI_L2P_Q921:
case UNI_IE_BLLI_L2P_X25L:
case UNI_IE_BLLI_L2P_X25M:
case UNI_IE_BLLI_L2P_LAPB:
case UNI_IE_BLLI_L2P_HDLC1:
case UNI_IE_BLLI_L2P_HDLC2:
case UNI_IE_BLLI_L2P_HDLC3:
case UNI_IE_BLLI_L2P_LLC:
case UNI_IE_BLLI_L2P_X75:
case UNI_IE_BLLI_L2P_Q922:
case UNI_IE_BLLI_L2P_ISO7776:
ap->blli.tag_l2 = T_ATM_PRESENT;
ap->blli.v.layer_2_protocol.ID_type =
T_ATM_SIMPLE_ID;
ap->blli.v.layer_2_protocol.ID.simple_ID =
msg->msg_ie_blli->ie_blli_l2_id;
break;
case UNI_IE_BLLI_L2P_USER:
ap->blli.tag_l2 = T_ATM_PRESENT;
ap->blli.v.layer_2_protocol.ID_type =
T_ATM_USER_ID;
ap->blli.v.layer_2_protocol.ID.user_defined_ID =
msg->msg_ie_blli->ie_blli_l2_user_proto;
break;
default:
ap->blli.tag_l2 = T_ATM_ABSENT;
}
if (ap->blli.tag_l2 == T_ATM_PRESENT) {
ap->blli.v.layer_2_protocol.mode =
msg->msg_ie_blli->ie_blli_l2_mode;
ap->blli.v.layer_2_protocol.window_size =
msg->msg_ie_blli->ie_blli_l2_window;
}
/*
* Layer 3 parameters
*/
switch(msg->msg_ie_blli->ie_blli_l3_id) {
case UNI_IE_BLLI_L3P_X25:
case UNI_IE_BLLI_L3P_ISO8208:
case UNI_IE_BLLI_L3P_ISO8878:
case UNI_IE_BLLI_L3P_ISO8473:
case UNI_IE_BLLI_L3P_T70:
ap->blli.tag_l3 = T_ATM_PRESENT;
ap->blli.v.layer_3_protocol.ID_type =
T_ATM_SIMPLE_ID;
ap->blli.v.layer_3_protocol.ID.simple_ID =
msg->msg_ie_blli->ie_blli_l3_id;
break;
case UNI_IE_BLLI_L3P_ISO9577:
ap->blli.tag_l3 = T_ATM_PRESENT;
ap->blli.v.layer_3_protocol.ID_type =
T_ATM_SIMPLE_ID;
ap->blli.v.layer_3_protocol.ID.simple_ID =
msg->msg_ie_blli->ie_blli_l3_id;
if (msg->msg_ie_blli->ie_blli_l3_ipi ==
UNI_IE_BLLI_L3IPI_SNAP) {
KM_COPY(msg->msg_ie_blli->ie_blli_l3_oui,
ap->blli.v.layer_3_protocol.ID.SNAP_ID.OUI,
sizeof(ap->blli.v.layer_3_protocol.ID.SNAP_ID.OUI));
KM_COPY(msg->msg_ie_blli->ie_blli_l3_pid,
ap->blli.v.layer_3_protocol.ID.SNAP_ID.PID,
sizeof(ap->blli.v.layer_3_protocol.ID.SNAP_ID.PID));
} else {
ap->blli.v.layer_3_protocol.ID.IPI_ID =
msg->msg_ie_blli->ie_blli_l3_ipi;
}
break;
case UNI_IE_BLLI_L3P_USER:
ap->blli.tag_l3 = T_ATM_PRESENT;
ap->blli.v.layer_3_protocol.ID_type =
T_ATM_USER_ID;
ap->blli.v.layer_3_protocol.ID.user_defined_ID =
msg->msg_ie_blli->ie_blli_l3_user_proto;
break;
default:
ap->blli.tag_l3 = T_ATM_ABSENT;
}
if (ap->blli.tag_l3 == T_ATM_PRESENT) {
ap->blli.v.layer_3_protocol.mode =
msg->msg_ie_blli->ie_blli_l3_mode;
ap->blli.v.layer_3_protocol.packet_size =
msg->msg_ie_blli->ie_blli_l3_packet_size;
ap->blli.v.layer_3_protocol.window_size =
msg->msg_ie_blli->ie_blli_l3_window;
}
}
/*
* Save the called party address and subaddress
*/
if (msg->msg_ie_cdad) {
ap->called.tag = T_ATM_PRESENT;
ATM_ADDR_COPY(&msg->msg_ie_cdad->ie_cdad_addr,
&ap->called.addr);
ap->called.subaddr.address_format = T_ATM_ABSENT;
ap->called.subaddr.address_length = 0;
}
if (msg->msg_ie_cdsa) {
ATM_ADDR_COPY(&msg->msg_ie_cdsa->ie_cdsa_addr,
&ap->called.subaddr);
}
/*
* Save the calling party address and subaddress
*/
if (msg->msg_ie_cgad) {
ap->calling.tag = T_ATM_PRESENT;
ATM_ADDR_COPY(&msg->msg_ie_cgad->ie_cgad_addr,
&ap->calling.addr);
ap->calling.subaddr.address_format = T_ATM_ABSENT;
ap->calling.subaddr.address_length = 0;
}
if (msg->msg_ie_cgsa) {
ATM_ADDR_COPY(&msg->msg_ie_cgsa->ie_cgsa_addr,
&ap->calling.subaddr);
}
/*
* Save quality of service attributes
*/
if (msg->msg_ie_qosp) {
ap->qos.tag = T_ATM_PRESENT;
ap->qos.v.coding_standard = msg->msg_ie_qosp->ie_coding;
ap->qos.v.forward.qos_class = msg->msg_ie_qosp->ie_qosp_fwd_class;
ap->qos.v.forward.qos_class =
msg->msg_ie_qosp->ie_qosp_bkwd_class;
}
/*
* Save transit network attributes
*/
if (msg->msg_ie_trnt) {
ap->transit.tag = T_ATM_PRESENT;
ap->transit.v.length =
MIN(msg->msg_ie_trnt->ie_trnt_id_len,
sizeof(ap->transit.v.network_id));
KM_COPY(msg->msg_ie_trnt->ie_trnt_id,
ap->transit.v.network_id,
ap->transit.v.length);
}
/*
* Save cause code
*/
if (msg->msg_ie_caus) {
ap->cause.tag = T_ATM_PRESENT;
ap->cause.v.coding_standard =
msg->msg_ie_caus->ie_coding;
ap->cause.v.location =
msg->msg_ie_caus->ie_caus_loc;
ap->cause.v.cause_value =
msg->msg_ie_caus->ie_caus_cause;
KM_ZERO(ap->cause.v.diagnostics,
sizeof(ap->cause.v.diagnostics));
#ifdef NOTDEF
KM_COPY(msg->msg_ie_caus->ie_caus_diagnostic,
ap->transit.v.diagnostics,
MIN(sizeof(ap->transit.v.diagnostics),
msg->msg_ie_caus->ie_caus_diag_len));
#endif
}
}
/*
* Copy connection parameters from an attribute block into
* UNI 3.0 message IEs
*
* Arguments:
* usp pointer to UNISIG protocol instance
* msg pointer to the SETUP message
* ap pointer to the attribute block
*
* Returns:
* 0 everything OK
* else error encountered
*
*/
int
unisig_set_attrs(usp, msg, ap)
struct unisig *usp;
struct unisig_msg *msg;
Atm_attributes *ap;
{
int err = 0;
/*
* Sanity check
*/
if (!msg || !ap)
return(EINVAL);
/*
* Set the AAL parameters (AAL 3/4 and AAL 5 only)
*/
if (ap->aal.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_aalp) {
msg->msg_ie_aalp = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_aalp == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_aalp_absent,
&msg->msg_ie_aalp->ie_u.ie_aalp,
sizeof(ie_aalp_absent));
msg->msg_ie_aalp->ie_ident = UNI_IE_AALP;
msg->msg_ie_aalp->ie_aalp_aal_type = ap->aal.type;
switch(ap->aal.type) {
case ATM_AAL3_4:
msg->msg_ie_aalp->ie_aalp_4_fwd_max_sdu =
ap->aal.v.aal4.forward_max_SDU_size;
msg->msg_ie_aalp->ie_aalp_4_bkwd_max_sdu =
ap->aal.v.aal4.backward_max_SDU_size;
msg->msg_ie_aalp->ie_aalp_4_mode = UNI_IE_AALP_A5_M_MSG;
msg->msg_ie_aalp->ie_aalp_4_sscs_type =
ap->aal.v.aal4.SSCS_type;
if (ap->aal.v.aal4.mid_low == T_ATM_ABSENT) {
msg->msg_ie_aalp->ie_aalp_4_mid_range =
T_ATM_ABSENT;
} else {
if (usp->us_proto == ATM_SIG_UNI30) {
msg->msg_ie_aalp->ie_aalp_4_mid_range =
ap->aal.v.aal4.mid_high &
UNI_IE_AALP_A3_R_MASK;
} else {
msg->msg_ie_aalp->ie_aalp_4_mid_range =
((ap->aal.v.aal4.mid_low &
UNI_IE_AALP_A3_R_MASK)
<< UNI_IE_AALP_A3_R_SHIFT)
|
(ap->aal.v.aal4.mid_high &
UNI_IE_AALP_A3_R_MASK);
}
}
break;
case ATM_AAL5:
msg->msg_ie_aalp->ie_aalp_5_fwd_max_sdu =
ap->aal.v.aal5.forward_max_SDU_size;
msg->msg_ie_aalp->ie_aalp_5_bkwd_max_sdu =
ap->aal.v.aal5.backward_max_SDU_size;
msg->msg_ie_aalp->ie_aalp_5_mode =
UNI_IE_AALP_A5_M_MSG;
msg->msg_ie_aalp->ie_aalp_5_sscs_type =
ap->aal.v.aal5.SSCS_type;
break;
}
}
/*
* Set traffic descriptor attributes
*/
if (ap->traffic.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_clrt) {
msg->msg_ie_clrt = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_clrt == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_clrt_absent,
&msg->msg_ie_clrt->ie_u.ie_clrt,
sizeof(ie_clrt_absent));
msg->msg_ie_clrt->ie_ident = UNI_IE_CLRT;
msg->msg_ie_clrt->ie_clrt_fwd_peak =
ap->traffic.v.forward.PCR_high_priority;
msg->msg_ie_clrt->ie_clrt_fwd_peak_01 =
ap->traffic.v.forward.PCR_all_traffic;
msg->msg_ie_clrt->ie_clrt_fwd_sust =
ap->traffic.v.forward.SCR_high_priority;
msg->msg_ie_clrt->ie_clrt_fwd_sust_01 =
ap->traffic.v.forward.SCR_all_traffic;
msg->msg_ie_clrt->ie_clrt_fwd_burst =
ap->traffic.v.forward.MBS_high_priority;
msg->msg_ie_clrt->ie_clrt_fwd_burst_01 =
ap->traffic.v.forward.MBS_all_traffic;
msg->msg_ie_clrt->ie_clrt_bkwd_peak =
ap->traffic.v.backward.PCR_high_priority;
msg->msg_ie_clrt->ie_clrt_bkwd_peak_01 =
ap->traffic.v.backward.PCR_all_traffic;
msg->msg_ie_clrt->ie_clrt_bkwd_sust =
ap->traffic.v.backward.SCR_high_priority;
msg->msg_ie_clrt->ie_clrt_bkwd_sust_01 =
ap->traffic.v.backward.SCR_all_traffic;
msg->msg_ie_clrt->ie_clrt_bkwd_burst =
ap->traffic.v.backward.MBS_high_priority;
msg->msg_ie_clrt->ie_clrt_bkwd_burst_01 =
ap->traffic.v.backward.MBS_all_traffic;
msg->msg_ie_clrt->ie_clrt_best_effort =
ap->traffic.v.best_effort;
msg->msg_ie_clrt->ie_clrt_tm_options = 0;
if (ap->traffic.v.forward.tagging) {
msg->msg_ie_clrt->ie_clrt_tm_options |=
UNI_IE_CLRT_TM_FWD_TAG;
}
if (ap->traffic.v.backward.tagging) {
msg->msg_ie_clrt->ie_clrt_tm_options |=
UNI_IE_CLRT_TM_BKWD_TAG;
}
if (msg->msg_ie_clrt->ie_clrt_tm_options == 0) {
msg->msg_ie_clrt->ie_clrt_tm_options =
T_ATM_ABSENT;
}
}
/*
* Set broadband bearer attributes
*/
if (ap->bearer.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_bbcp) {
msg->msg_ie_bbcp = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_bbcp == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_bbcp_absent,
&msg->msg_ie_bbcp->ie_u.ie_bbcp,
sizeof(ie_bbcp_absent));
msg->msg_ie_bbcp->ie_ident = UNI_IE_BBCP;
msg->msg_ie_bbcp->ie_bbcp_bearer_class =
ap->bearer.v.bearer_class;
msg->msg_ie_bbcp->ie_bbcp_traffic_type =
ap->bearer.v.traffic_type;
msg->msg_ie_bbcp->ie_bbcp_timing_req =
ap->bearer.v.timing_requirements;
msg->msg_ie_bbcp->ie_bbcp_clipping =
ap->bearer.v.clipping_susceptibility;
msg->msg_ie_bbcp->ie_bbcp_conn_config =
ap->bearer.v.connection_configuration;
}
/*
* Set broadband high layer attributes
*/
if (ap->bhli.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_bhli) {
msg->msg_ie_bhli = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_bhli == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_bhli_absent,
&msg->msg_ie_bhli->ie_u.ie_bhli,
sizeof(ie_bhli_absent));
msg->msg_ie_bhli->ie_ident = UNI_IE_BHLI;
msg->msg_ie_bhli->ie_bhli_type = ap->bhli.v.ID_type;
switch (ap->bhli.v.ID_type) {
case T_ATM_ISO_APP_ID:
KM_COPY(ap->bhli.v.ID.ISO_ID,
msg->msg_ie_bhli->ie_bhli_info,
sizeof(ap->bhli.v.ID.ISO_ID));
break;
case T_ATM_USER_APP_ID:
KM_COPY(ap->bhli.v.ID.user_defined_ID,
msg->msg_ie_bhli->ie_bhli_info,
sizeof(ap->bhli.v.ID.user_defined_ID));
break;
case T_ATM_VENDOR_APP_ID:
KM_COPY(ap->bhli.v.ID.vendor_ID.OUI,
msg->msg_ie_bhli->ie_bhli_info,
sizeof(ap->bhli.v.ID.vendor_ID.OUI));
KM_COPY(ap->bhli.v.ID.vendor_ID.app_ID,
&msg->msg_ie_bhli->ie_bhli_info[sizeof(ap->bhli.v.ID.vendor_ID.OUI)-1],
sizeof(ap->bhli.v.ID.vendor_ID.app_ID));
break;
}
}
/*
* Set Broadband low layer, user layer 2 and 3 attributes
*/
if (ap->blli.tag_l2 == T_ATM_PRESENT ||
ap->blli.tag_l3 == T_ATM_PRESENT) {
if (!msg->msg_ie_blli) {
msg->msg_ie_blli = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_blli == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_blli_absent,
&msg->msg_ie_blli->ie_u.ie_blli,
sizeof(ie_blli_absent));
msg->msg_ie_blli->ie_ident = UNI_IE_BLLI;
if (ap->blli.tag_l2 == T_ATM_PRESENT) {
switch(ap->blli.v.layer_2_protocol.ID_type) {
case T_ATM_SIMPLE_ID:
msg->msg_ie_blli->ie_blli_l2_id =
ap->blli.v.layer_2_protocol.ID.simple_ID;
break;
case T_ATM_USER_ID:
msg->msg_ie_blli->ie_blli_l2_id =
UNI_IE_BLLI_L2P_USER;
msg->msg_ie_blli->ie_blli_l2_user_proto =
ap->blli.v.layer_2_protocol.ID.user_defined_ID;
break;
}
if (ap->blli.v.layer_2_protocol.ID_type !=
T_ATM_ABSENT) {
msg->msg_ie_blli->ie_blli_l2_mode =
ap->blli.v.layer_2_protocol.mode;
msg->msg_ie_blli->ie_blli_l2_window =
ap->blli.v.layer_2_protocol.window_size;
}
}
if (ap->blli.tag_l3 == T_ATM_PRESENT) {
switch (ap->blli.v.layer_3_protocol.ID_type) {
case T_ATM_SIMPLE_ID:
msg->msg_ie_blli->ie_blli_l3_id =
ap->blli.v.layer_3_protocol.ID.simple_ID;
break;
case T_ATM_IPI_ID:
msg->msg_ie_blli->ie_blli_l3_id =
UNI_IE_BLLI_L3P_ISO9577;
msg->msg_ie_blli->ie_blli_l3_ipi =
ap->blli.v.layer_3_protocol.ID.IPI_ID;
break;
case T_ATM_SNAP_ID:
msg->msg_ie_blli->ie_blli_l3_id =
UNI_IE_BLLI_L3P_ISO9577;
msg->msg_ie_blli->ie_blli_l3_ipi =
UNI_IE_BLLI_L3IPI_SNAP;
KM_COPY(ap->blli.v.layer_3_protocol.ID.SNAP_ID.OUI,
msg->msg_ie_blli->ie_blli_l3_oui,
sizeof(msg->msg_ie_blli->ie_blli_l3_oui));
KM_COPY(ap->blli.v.layer_3_protocol.ID.SNAP_ID.PID,
msg->msg_ie_blli->ie_blli_l3_pid,
sizeof(msg->msg_ie_blli->ie_blli_l3_pid));
break;
case T_ATM_USER_ID:
msg->msg_ie_blli->ie_blli_l3_id =
UNI_IE_BLLI_L3P_USER;
msg->msg_ie_blli->ie_blli_l3_user_proto =
ap->blli.v.layer_3_protocol.ID.user_defined_ID;
break;
}
if (ap->blli.v.layer_3_protocol.ID_type
!= T_ATM_ABSENT) {
msg->msg_ie_blli->ie_blli_l3_mode =
ap->blli.v.layer_3_protocol.mode;
msg->msg_ie_blli->ie_blli_l3_packet_size =
ap->blli.v.layer_3_protocol.packet_size;
msg->msg_ie_blli->ie_blli_l3_window =
ap->blli.v.layer_3_protocol.window_size;
}
}
}
/*
* Set the called party address and subaddress
*/
if (ap->called.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_cdad) {
msg->msg_ie_cdad = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_cdad == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_cdad_absent,
&msg->msg_ie_cdad->ie_u.ie_cdad,
sizeof(ie_cdad_absent));
msg->msg_ie_cdad->ie_ident = UNI_IE_CDAD;
ATM_ADDR_COPY(&ap->called.addr,
&msg->msg_ie_cdad->ie_cdad_addr);
if (ap->called.subaddr.address_format != T_ATM_ABSENT) {
if (!msg->msg_ie_cdsa) {
msg->msg_ie_cdsa = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_cdsa == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_cdsa_absent,
&msg->msg_ie_cdsa->ie_u.ie_cdsa,
sizeof(ie_cdsa_absent));
msg->msg_ie_cdsa->ie_ident = UNI_IE_CDSA;
ATM_ADDR_COPY(&ap->called.subaddr,
&msg->msg_ie_cdsa->ie_cdsa_addr);
}
}
/*
* Set the calling party address and subaddress
*/
if (ap->calling.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_cgad) {
msg->msg_ie_cgad = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_cgad == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_cgad_absent,
&msg->msg_ie_cgad->ie_u.ie_cgad,
sizeof(ie_cgad_absent));
msg->msg_ie_cgsa->ie_ident = UNI_IE_CGSA;
ATM_ADDR_COPY(&ap->calling.addr,
&msg->msg_ie_cgad->ie_cgad_addr);
if (ap->calling.subaddr.address_format !=
T_ATM_ABSENT) {
if (!msg->msg_ie_cgsa) {
msg->msg_ie_cgsa = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_cgsa == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_cgsa_absent,
&msg->msg_ie_cgsa->ie_u.ie_cgsa,
sizeof(ie_cgsa_absent));
msg->msg_ie_cgsa->ie_ident = UNI_IE_CGSA;
ATM_ADDR_COPY(&ap->calling.subaddr,
&msg->msg_ie_cgsa->ie_cgsa_addr);
}
}
/*
* Set quality of service attributes
*/
if (ap->qos.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_qosp) {
msg->msg_ie_qosp = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_qosp == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_qosp_absent,
&msg->msg_ie_qosp->ie_u.ie_qosp,
sizeof(ie_qosp_absent));
msg->msg_ie_qosp->ie_ident = UNI_IE_QOSP;
if (usp->us_proto == ATM_SIG_UNI30)
msg->msg_ie_qosp->ie_coding = UNI_IE_CODE_STD;
else if ((ap->qos.v.forward.qos_class ==
T_ATM_QOS_CLASS_0) ||
(ap->qos.v.backward.qos_class ==
T_ATM_QOS_CLASS_0))
msg->msg_ie_qosp->ie_coding = UNI_IE_CODE_CCITT;
else
msg->msg_ie_qosp->ie_coding = ap->qos.v.coding_standard;
msg->msg_ie_qosp->ie_qosp_fwd_class =
ap->qos.v.forward.qos_class;
msg->msg_ie_qosp->ie_qosp_bkwd_class =
ap->qos.v.backward.qos_class;
}
/*
* Set transit network attributes
*/
if (ap->transit.tag == T_ATM_PRESENT &&
ap->transit.v.length != 0) {
if (!msg->msg_ie_trnt) {
msg->msg_ie_trnt = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_trnt == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_trnt_absent,
&msg->msg_ie_trnt->ie_u.ie_trnt,
sizeof(ie_trnt_absent));
msg->msg_ie_trnt->ie_ident = UNI_IE_TRNT;
msg->msg_ie_trnt->ie_trnt_id_type =
UNI_IE_TRNT_IDT_NATL;
msg->msg_ie_trnt->ie_trnt_id_plan =
UNI_IE_TRNT_IDP_CIC;
KM_COPY(ap->transit.v.network_id,
msg->msg_ie_trnt->ie_trnt_id,
ap->transit.v.length);
}
/*
* Set cause code
*/
if (ap->cause.tag == T_ATM_PRESENT) {
if (!msg->msg_ie_caus) {
msg->msg_ie_caus = (struct ie_generic *)
atm_allocate(&unisig_iepool);
if (msg->msg_ie_caus == NULL) {
err = ENOMEM;
goto done;
}
}
KM_COPY(&ie_caus_absent,
&msg->msg_ie_caus->ie_u.ie_caus,
sizeof(ie_caus_absent));
msg->msg_ie_caus->ie_ident = UNI_IE_CAUS;
msg->msg_ie_caus->ie_coding =
ap->cause.v.coding_standard;
msg->msg_ie_caus->ie_caus_loc =
ap->cause.v.location;
msg->msg_ie_caus->ie_caus_cause =
ap->cause.v.cause_value;
/*
* Don't copy the diagnostics from the attribute
* block, as there's no way to tell how much of
* the diagnostic field is relevant
*/
msg->msg_ie_caus->ie_caus_diag_len = 0;
}
done:
return(err);
}
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