| /* $Id: l3ni1.c,v 2.8.2.3 2004/01/13 14:31:25 keil Exp $ |
| * |
| * NI1 D-channel protocol |
| * |
| * Author Matt Henderson & Guy Ellis |
| * Copyright by Traverse Technologies Pty Ltd, www.travers.com.au |
| * |
| * This software may be used and distributed according to the terms |
| * of the GNU General Public License, incorporated herein by reference. |
| * |
| * 2000.6.6 Initial implementation of routines for US NI1 |
| * Layer 3 protocol based on the EURO/DSS1 D-channel protocol |
| * driver written by Karsten Keil et al. |
| * NI-1 Hall of Fame - Thanks to.... |
| * Ragnar Paulson - for some handy code fragments |
| * Will Scales - beta tester extraordinaire |
| * Brett Whittacre - beta tester and remote devel system in Vegas |
| * |
| */ |
| |
| #include "hisax.h" |
| #include "isdnl3.h" |
| #include "l3ni1.h" |
| #include <linux/ctype.h> |
| #include <linux/slab.h> |
| |
| extern char *HiSax_getrev(const char *revision); |
| static const char *ni1_revision = "$Revision: 2.8.2.3 $"; |
| |
| #define EXT_BEARER_CAPS 1 |
| |
| #define MsgHead(ptr, cref, mty) \ |
| *ptr++ = 0x8; \ |
| if (cref == -1) { \ |
| *ptr++ = 0x0; \ |
| } else { \ |
| *ptr++ = 0x1; \ |
| *ptr++ = cref^0x80; \ |
| } \ |
| *ptr++ = mty |
| |
| |
| /**********************************************/ |
| /* get a new invoke id for remote operations. */ |
| /* Only a return value != 0 is valid */ |
| /**********************************************/ |
| static unsigned char new_invoke_id(struct PStack *p) |
| { |
| unsigned char retval; |
| int i; |
| |
| i = 32; /* maximum search depth */ |
| |
| retval = p->prot.ni1.last_invoke_id + 1; /* try new id */ |
| while ((i) && (p->prot.ni1.invoke_used[retval >> 3] == 0xFF)) { |
| p->prot.ni1.last_invoke_id = (retval & 0xF8) + 8; |
| i--; |
| } |
| if (i) { |
| while (p->prot.ni1.invoke_used[retval >> 3] & (1 << (retval & 7))) |
| retval++; |
| } else |
| retval = 0; |
| p->prot.ni1.last_invoke_id = retval; |
| p->prot.ni1.invoke_used[retval >> 3] |= (1 << (retval & 7)); |
| return (retval); |
| } /* new_invoke_id */ |
| |
| /*************************/ |
| /* free a used invoke id */ |
| /*************************/ |
| static void free_invoke_id(struct PStack *p, unsigned char id) |
| { |
| |
| if (!id) return; /* 0 = invalid value */ |
| |
| p->prot.ni1.invoke_used[id >> 3] &= ~(1 << (id & 7)); |
| } /* free_invoke_id */ |
| |
| |
| /**********************************************************/ |
| /* create a new l3 process and fill in ni1 specific data */ |
| /**********************************************************/ |
| static struct l3_process |
| *ni1_new_l3_process(struct PStack *st, int cr) |
| { struct l3_process *proc; |
| |
| if (!(proc = new_l3_process(st, cr))) |
| return (NULL); |
| |
| proc->prot.ni1.invoke_id = 0; |
| proc->prot.ni1.remote_operation = 0; |
| proc->prot.ni1.uus1_data[0] = '\0'; |
| |
| return (proc); |
| } /* ni1_new_l3_process */ |
| |
| /************************************************/ |
| /* free a l3 process and all ni1 specific data */ |
| /************************************************/ |
| static void |
| ni1_release_l3_process(struct l3_process *p) |
| { |
| free_invoke_id(p->st, p->prot.ni1.invoke_id); |
| release_l3_process(p); |
| } /* ni1_release_l3_process */ |
| |
| /********************************************************/ |
| /* search a process with invoke id id and dummy callref */ |
| /********************************************************/ |
| static struct l3_process * |
| l3ni1_search_dummy_proc(struct PStack *st, int id) |
| { struct l3_process *pc = st->l3.proc; /* start of processes */ |
| |
| if (!id) return (NULL); |
| |
| while (pc) |
| { if ((pc->callref == -1) && (pc->prot.ni1.invoke_id == id)) |
| return (pc); |
| pc = pc->next; |
| } |
| return (NULL); |
| } /* l3ni1_search_dummy_proc */ |
| |
| /*******************************************************************/ |
| /* called when a facility message with a dummy callref is received */ |
| /* and a return result is delivered. id specifies the invoke id. */ |
| /*******************************************************************/ |
| static void |
| l3ni1_dummy_return_result(struct PStack *st, int id, u_char *p, u_char nlen) |
| { isdn_ctrl ic; |
| struct IsdnCardState *cs; |
| struct l3_process *pc = NULL; |
| |
| if ((pc = l3ni1_search_dummy_proc(st, id))) |
| { L3DelTimer(&pc->timer); /* remove timer */ |
| |
| cs = pc->st->l1.hardware; |
| ic.driver = cs->myid; |
| ic.command = ISDN_STAT_PROT; |
| ic.arg = NI1_STAT_INVOKE_RES; |
| ic.parm.ni1_io.hl_id = pc->prot.ni1.invoke_id; |
| ic.parm.ni1_io.ll_id = pc->prot.ni1.ll_id; |
| ic.parm.ni1_io.proc = pc->prot.ni1.proc; |
| ic.parm.ni1_io.timeout = 0; |
| ic.parm.ni1_io.datalen = nlen; |
| ic.parm.ni1_io.data = p; |
| free_invoke_id(pc->st, pc->prot.ni1.invoke_id); |
| pc->prot.ni1.invoke_id = 0; /* reset id */ |
| |
| cs->iif.statcallb(&ic); |
| ni1_release_l3_process(pc); |
| } |
| else |
| l3_debug(st, "dummy return result id=0x%x result len=%d", id, nlen); |
| } /* l3ni1_dummy_return_result */ |
| |
| /*******************************************************************/ |
| /* called when a facility message with a dummy callref is received */ |
| /* and a return error is delivered. id specifies the invoke id. */ |
| /*******************************************************************/ |
| static void |
| l3ni1_dummy_error_return(struct PStack *st, int id, ulong error) |
| { isdn_ctrl ic; |
| struct IsdnCardState *cs; |
| struct l3_process *pc = NULL; |
| |
| if ((pc = l3ni1_search_dummy_proc(st, id))) |
| { L3DelTimer(&pc->timer); /* remove timer */ |
| |
| cs = pc->st->l1.hardware; |
| ic.driver = cs->myid; |
| ic.command = ISDN_STAT_PROT; |
| ic.arg = NI1_STAT_INVOKE_ERR; |
| ic.parm.ni1_io.hl_id = pc->prot.ni1.invoke_id; |
| ic.parm.ni1_io.ll_id = pc->prot.ni1.ll_id; |
| ic.parm.ni1_io.proc = pc->prot.ni1.proc; |
| ic.parm.ni1_io.timeout = error; |
| ic.parm.ni1_io.datalen = 0; |
| ic.parm.ni1_io.data = NULL; |
| free_invoke_id(pc->st, pc->prot.ni1.invoke_id); |
| pc->prot.ni1.invoke_id = 0; /* reset id */ |
| |
| cs->iif.statcallb(&ic); |
| ni1_release_l3_process(pc); |
| } |
| else |
| l3_debug(st, "dummy return error id=0x%x error=0x%lx", id, error); |
| } /* l3ni1_error_return */ |
| |
| /*******************************************************************/ |
| /* called when a facility message with a dummy callref is received */ |
| /* and a invoke is delivered. id specifies the invoke id. */ |
| /*******************************************************************/ |
| static void |
| l3ni1_dummy_invoke(struct PStack *st, int cr, int id, |
| int ident, u_char *p, u_char nlen) |
| { isdn_ctrl ic; |
| struct IsdnCardState *cs; |
| |
| l3_debug(st, "dummy invoke %s id=0x%x ident=0x%x datalen=%d", |
| (cr == -1) ? "local" : "broadcast", id, ident, nlen); |
| if (cr >= -1) return; /* ignore local data */ |
| |
| cs = st->l1.hardware; |
| ic.driver = cs->myid; |
| ic.command = ISDN_STAT_PROT; |
| ic.arg = NI1_STAT_INVOKE_BRD; |
| ic.parm.ni1_io.hl_id = id; |
| ic.parm.ni1_io.ll_id = 0; |
| ic.parm.ni1_io.proc = ident; |
| ic.parm.ni1_io.timeout = 0; |
| ic.parm.ni1_io.datalen = nlen; |
| ic.parm.ni1_io.data = p; |
| |
| cs->iif.statcallb(&ic); |
| } /* l3ni1_dummy_invoke */ |
| |
| static void |
| l3ni1_parse_facility(struct PStack *st, struct l3_process *pc, |
| int cr, u_char *p) |
| { |
| int qd_len = 0; |
| unsigned char nlen = 0, ilen, cp_tag; |
| int ident, id; |
| ulong err_ret; |
| |
| if (pc) |
| st = pc->st; /* valid Stack */ |
| else |
| if ((!st) || (cr >= 0)) return; /* neither pc nor st specified */ |
| |
| p++; |
| qd_len = *p++; |
| if (qd_len == 0) { |
| l3_debug(st, "qd_len == 0"); |
| return; |
| } |
| if ((*p & 0x1F) != 0x11) { /* Service discriminator, supplementary service */ |
| l3_debug(st, "supplementary service != 0x11"); |
| return; |
| } |
| while (qd_len > 0 && !(*p & 0x80)) { /* extension ? */ |
| p++; |
| qd_len--; |
| } |
| if (qd_len < 2) { |
| l3_debug(st, "qd_len < 2"); |
| return; |
| } |
| p++; |
| qd_len--; |
| if ((*p & 0xE0) != 0xA0) { /* class and form */ |
| l3_debug(st, "class and form != 0xA0"); |
| return; |
| } |
| |
| cp_tag = *p & 0x1F; /* remember tag value */ |
| |
| p++; |
| qd_len--; |
| if (qd_len < 1) |
| { l3_debug(st, "qd_len < 1"); |
| return; |
| } |
| if (*p & 0x80) |
| { /* length format indefinite or limited */ |
| nlen = *p++ & 0x7F; /* number of len bytes or indefinite */ |
| if ((qd_len-- < ((!nlen) ? 3 : (1 + nlen))) || |
| (nlen > 1)) |
| { l3_debug(st, "length format error or not implemented"); |
| return; |
| } |
| if (nlen == 1) |
| { nlen = *p++; /* complete length */ |
| qd_len--; |
| } |
| else |
| { qd_len -= 2; /* trailing null bytes */ |
| if ((*(p + qd_len)) || (*(p + qd_len + 1))) |
| { l3_debug(st, "length format indefinite error"); |
| return; |
| } |
| nlen = qd_len; |
| } |
| } |
| else |
| { nlen = *p++; |
| qd_len--; |
| } |
| if (qd_len < nlen) |
| { l3_debug(st, "qd_len < nlen"); |
| return; |
| } |
| qd_len -= nlen; |
| |
| if (nlen < 2) |
| { l3_debug(st, "nlen < 2"); |
| return; |
| } |
| if (*p != 0x02) |
| { /* invoke identifier tag */ |
| l3_debug(st, "invoke identifier tag !=0x02"); |
| return; |
| } |
| p++; |
| nlen--; |
| if (*p & 0x80) |
| { /* length format */ |
| l3_debug(st, "invoke id length format 2"); |
| return; |
| } |
| ilen = *p++; |
| nlen--; |
| if (ilen > nlen || ilen == 0) |
| { l3_debug(st, "ilen > nlen || ilen == 0"); |
| return; |
| } |
| nlen -= ilen; |
| id = 0; |
| while (ilen > 0) |
| { id = (id << 8) | (*p++ & 0xFF); /* invoke identifier */ |
| ilen--; |
| } |
| |
| switch (cp_tag) { /* component tag */ |
| case 1: /* invoke */ |
| if (nlen < 2) { |
| l3_debug(st, "nlen < 2 22"); |
| return; |
| } |
| if (*p != 0x02) { /* operation value */ |
| l3_debug(st, "operation value !=0x02"); |
| return; |
| } |
| p++; |
| nlen--; |
| ilen = *p++; |
| nlen--; |
| if (ilen > nlen || ilen == 0) { |
| l3_debug(st, "ilen > nlen || ilen == 0 22"); |
| return; |
| } |
| nlen -= ilen; |
| ident = 0; |
| while (ilen > 0) { |
| ident = (ident << 8) | (*p++ & 0xFF); |
| ilen--; |
| } |
| |
| if (!pc) |
| { |
| l3ni1_dummy_invoke(st, cr, id, ident, p, nlen); |
| return; |
| } |
| l3_debug(st, "invoke break"); |
| break; |
| case 2: /* return result */ |
| /* if no process available handle separately */ |
| if (!pc) |
| { if (cr == -1) |
| l3ni1_dummy_return_result(st, id, p, nlen); |
| return; |
| } |
| if ((pc->prot.ni1.invoke_id) && (pc->prot.ni1.invoke_id == id)) |
| { /* Diversion successful */ |
| free_invoke_id(st, pc->prot.ni1.invoke_id); |
| pc->prot.ni1.remote_result = 0; /* success */ |
| pc->prot.ni1.invoke_id = 0; |
| pc->redir_result = pc->prot.ni1.remote_result; |
| st->l3.l3l4(st, CC_REDIR | INDICATION, pc); } /* Diversion successful */ |
| else |
| l3_debug(st, "return error unknown identifier"); |
| break; |
| case 3: /* return error */ |
| err_ret = 0; |
| if (nlen < 2) |
| { l3_debug(st, "return error nlen < 2"); |
| return; |
| } |
| if (*p != 0x02) |
| { /* result tag */ |
| l3_debug(st, "invoke error tag !=0x02"); |
| return; |
| } |
| p++; |
| nlen--; |
| if (*p > 4) |
| { /* length format */ |
| l3_debug(st, "invoke return errlen > 4 "); |
| return; |
| } |
| ilen = *p++; |
| nlen--; |
| if (ilen > nlen || ilen == 0) |
| { l3_debug(st, "error return ilen > nlen || ilen == 0"); |
| return; |
| } |
| nlen -= ilen; |
| while (ilen > 0) |
| { err_ret = (err_ret << 8) | (*p++ & 0xFF); /* error value */ |
| ilen--; |
| } |
| /* if no process available handle separately */ |
| if (!pc) |
| { if (cr == -1) |
| l3ni1_dummy_error_return(st, id, err_ret); |
| return; |
| } |
| if ((pc->prot.ni1.invoke_id) && (pc->prot.ni1.invoke_id == id)) |
| { /* Deflection error */ |
| free_invoke_id(st, pc->prot.ni1.invoke_id); |
| pc->prot.ni1.remote_result = err_ret; /* result */ |
| pc->prot.ni1.invoke_id = 0; |
| pc->redir_result = pc->prot.ni1.remote_result; |
| st->l3.l3l4(st, CC_REDIR | INDICATION, pc); |
| } /* Deflection error */ |
| else |
| l3_debug(st, "return result unknown identifier"); |
| break; |
| default: |
| l3_debug(st, "facility default break tag=0x%02x", cp_tag); |
| break; |
| } |
| } |
| |
| static void |
| l3ni1_message(struct l3_process *pc, u_char mt) |
| { |
| struct sk_buff *skb; |
| u_char *p; |
| |
| if (!(skb = l3_alloc_skb(4))) |
| return; |
| p = skb_put(skb, 4); |
| MsgHead(p, pc->callref, mt); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void |
| l3ni1_message_plus_chid(struct l3_process *pc, u_char mt) |
| /* sends an l3 messages plus channel id - added GE 05/09/00 */ |
| { |
| struct sk_buff *skb; |
| u_char tmp[16]; |
| u_char *p = tmp; |
| u_char chid; |
| |
| chid = (u_char)(pc->para.bchannel & 0x03) | 0x88; |
| MsgHead(p, pc->callref, mt); |
| *p++ = IE_CHANNEL_ID; |
| *p++ = 0x01; |
| *p++ = chid; |
| |
| if (!(skb = l3_alloc_skb(7))) |
| return; |
| memcpy(skb_put(skb, 7), tmp, 7); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void |
| l3ni1_message_cause(struct l3_process *pc, u_char mt, u_char cause) |
| { |
| struct sk_buff *skb; |
| u_char tmp[16]; |
| u_char *p = tmp; |
| int l; |
| |
| MsgHead(p, pc->callref, mt); |
| *p++ = IE_CAUSE; |
| *p++ = 0x2; |
| *p++ = 0x80; |
| *p++ = cause | 0x80; |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void |
| l3ni1_status_send(struct l3_process *pc, u_char pr, void *arg) |
| { |
| u_char tmp[16]; |
| u_char *p = tmp; |
| int l; |
| struct sk_buff *skb; |
| |
| MsgHead(p, pc->callref, MT_STATUS); |
| |
| *p++ = IE_CAUSE; |
| *p++ = 0x2; |
| *p++ = 0x80; |
| *p++ = pc->para.cause | 0x80; |
| |
| *p++ = IE_CALL_STATE; |
| *p++ = 0x1; |
| *p++ = pc->state & 0x3f; |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void |
| l3ni1_msg_without_setup(struct l3_process *pc, u_char pr, void *arg) |
| { |
| /* This routine is called if here was no SETUP made (checks in ni1up and in |
| * l3ni1_setup) and a RELEASE_COMPLETE have to be sent with an error code |
| * MT_STATUS_ENQUIRE in the NULL state is handled too |
| */ |
| u_char tmp[16]; |
| u_char *p = tmp; |
| int l; |
| struct sk_buff *skb; |
| |
| switch (pc->para.cause) { |
| case 81: /* invalid callreference */ |
| case 88: /* incomp destination */ |
| case 96: /* mandory IE missing */ |
| case 100: /* invalid IE contents */ |
| case 101: /* incompatible Callstate */ |
| MsgHead(p, pc->callref, MT_RELEASE_COMPLETE); |
| *p++ = IE_CAUSE; |
| *p++ = 0x2; |
| *p++ = 0x80; |
| *p++ = pc->para.cause | 0x80; |
| break; |
| default: |
| printk(KERN_ERR "HiSax l3ni1_msg_without_setup wrong cause %d\n", |
| pc->para.cause); |
| return; |
| } |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| ni1_release_l3_process(pc); |
| } |
| |
| static int ie_ALERTING[] = {IE_BEARER, IE_CHANNEL_ID | IE_MANDATORY_1, |
| IE_FACILITY, IE_PROGRESS, IE_DISPLAY, IE_SIGNAL, IE_HLC, |
| IE_USER_USER, -1}; |
| static int ie_CALL_PROCEEDING[] = {IE_BEARER, IE_CHANNEL_ID | IE_MANDATORY_1, |
| IE_FACILITY, IE_PROGRESS, IE_DISPLAY, IE_HLC, -1}; |
| static int ie_CONNECT[] = {IE_BEARER, IE_CHANNEL_ID | IE_MANDATORY_1, |
| IE_FACILITY, IE_PROGRESS, IE_DISPLAY, IE_DATE, IE_SIGNAL, |
| IE_CONNECT_PN, IE_CONNECT_SUB, IE_LLC, IE_HLC, IE_USER_USER, -1}; |
| static int ie_CONNECT_ACKNOWLEDGE[] = {IE_CHANNEL_ID, IE_DISPLAY, IE_SIGNAL, -1}; |
| static int ie_DISCONNECT[] = {IE_CAUSE | IE_MANDATORY, IE_FACILITY, |
| IE_PROGRESS, IE_DISPLAY, IE_SIGNAL, IE_USER_USER, -1}; |
| static int ie_INFORMATION[] = {IE_COMPLETE, IE_DISPLAY, IE_KEYPAD, IE_SIGNAL, |
| IE_CALLED_PN, -1}; |
| static int ie_NOTIFY[] = {IE_BEARER, IE_NOTIFY | IE_MANDATORY, IE_DISPLAY, -1}; |
| static int ie_PROGRESS[] = {IE_BEARER, IE_CAUSE, IE_FACILITY, IE_PROGRESS | |
| IE_MANDATORY, IE_DISPLAY, IE_HLC, IE_USER_USER, -1}; |
| static int ie_RELEASE[] = {IE_CAUSE | IE_MANDATORY_1, IE_FACILITY, IE_DISPLAY, |
| IE_SIGNAL, IE_USER_USER, -1}; |
| /* a RELEASE_COMPLETE with errors don't require special actions |
| static int ie_RELEASE_COMPLETE[] = {IE_CAUSE | IE_MANDATORY_1, IE_DISPLAY, IE_SIGNAL, IE_USER_USER, -1}; |
| */ |
| static int ie_RESUME_ACKNOWLEDGE[] = {IE_CHANNEL_ID | IE_MANDATORY, IE_FACILITY, |
| IE_DISPLAY, -1}; |
| static int ie_RESUME_REJECT[] = {IE_CAUSE | IE_MANDATORY, IE_DISPLAY, -1}; |
| static int ie_SETUP[] = {IE_COMPLETE, IE_BEARER | IE_MANDATORY, |
| IE_CHANNEL_ID | IE_MANDATORY, IE_FACILITY, IE_PROGRESS, |
| IE_NET_FAC, IE_DISPLAY, IE_KEYPAD, IE_SIGNAL, IE_CALLING_PN, |
| IE_CALLING_SUB, IE_CALLED_PN, IE_CALLED_SUB, IE_REDIR_NR, |
| IE_LLC, IE_HLC, IE_USER_USER, -1}; |
| static int ie_SETUP_ACKNOWLEDGE[] = {IE_CHANNEL_ID | IE_MANDATORY, IE_FACILITY, |
| IE_PROGRESS, IE_DISPLAY, IE_SIGNAL, -1}; |
| static int ie_STATUS[] = {IE_CAUSE | IE_MANDATORY, IE_CALL_STATE | |
| IE_MANDATORY, IE_DISPLAY, -1}; |
| static int ie_STATUS_ENQUIRY[] = {IE_DISPLAY, -1}; |
| static int ie_SUSPEND_ACKNOWLEDGE[] = {IE_DISPLAY, IE_FACILITY, -1}; |
| static int ie_SUSPEND_REJECT[] = {IE_CAUSE | IE_MANDATORY, IE_DISPLAY, -1}; |
| /* not used |
| * static int ie_CONGESTION_CONTROL[] = {IE_CONGESTION | IE_MANDATORY, |
| * IE_CAUSE | IE_MANDATORY, IE_DISPLAY, -1}; |
| * static int ie_USER_INFORMATION[] = {IE_MORE_DATA, IE_USER_USER | IE_MANDATORY, -1}; |
| * static int ie_RESTART[] = {IE_CHANNEL_ID, IE_DISPLAY, IE_RESTART_IND | |
| * IE_MANDATORY, -1}; |
| */ |
| static int ie_FACILITY[] = {IE_FACILITY | IE_MANDATORY, IE_DISPLAY, -1}; |
| static int comp_required[] = {1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, -1}; |
| static int l3_valid_states[] = {0, 1, 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 15, 17, 19, 25, -1}; |
| |
| struct ie_len { |
| int ie; |
| int len; |
| }; |
| |
| static |
| struct ie_len max_ie_len[] = { |
| {IE_SEGMENT, 4}, |
| {IE_BEARER, 12}, |
| {IE_CAUSE, 32}, |
| {IE_CALL_ID, 10}, |
| {IE_CALL_STATE, 3}, |
| {IE_CHANNEL_ID, 34}, |
| {IE_FACILITY, 255}, |
| {IE_PROGRESS, 4}, |
| {IE_NET_FAC, 255}, |
| {IE_NOTIFY, 3}, |
| {IE_DISPLAY, 82}, |
| {IE_DATE, 8}, |
| {IE_KEYPAD, 34}, |
| {IE_SIGNAL, 3}, |
| {IE_INFORATE, 6}, |
| {IE_E2E_TDELAY, 11}, |
| {IE_TDELAY_SEL, 5}, |
| {IE_PACK_BINPARA, 3}, |
| {IE_PACK_WINSIZE, 4}, |
| {IE_PACK_SIZE, 4}, |
| {IE_CUG, 7}, |
| {IE_REV_CHARGE, 3}, |
| {IE_CALLING_PN, 24}, |
| {IE_CALLING_SUB, 23}, |
| {IE_CALLED_PN, 24}, |
| {IE_CALLED_SUB, 23}, |
| {IE_REDIR_NR, 255}, |
| {IE_TRANS_SEL, 255}, |
| {IE_RESTART_IND, 3}, |
| {IE_LLC, 18}, |
| {IE_HLC, 5}, |
| {IE_USER_USER, 131}, |
| {-1, 0}, |
| }; |
| |
| static int |
| getmax_ie_len(u_char ie) { |
| int i = 0; |
| while (max_ie_len[i].ie != -1) { |
| if (max_ie_len[i].ie == ie) |
| return (max_ie_len[i].len); |
| i++; |
| } |
| return (255); |
| } |
| |
| static int |
| ie_in_set(struct l3_process *pc, u_char ie, int *checklist) { |
| int ret = 1; |
| |
| while (*checklist != -1) { |
| if ((*checklist & 0xff) == ie) { |
| if (ie & 0x80) |
| return (-ret); |
| else |
| return (ret); |
| } |
| ret++; |
| checklist++; |
| } |
| return (0); |
| } |
| |
| static int |
| check_infoelements(struct l3_process *pc, struct sk_buff *skb, int *checklist) |
| { |
| int *cl = checklist; |
| u_char mt; |
| u_char *p, ie; |
| int l, newpos, oldpos; |
| int err_seq = 0, err_len = 0, err_compr = 0, err_ureg = 0; |
| u_char codeset = 0; |
| u_char old_codeset = 0; |
| u_char codelock = 1; |
| |
| p = skb->data; |
| /* skip cr */ |
| p++; |
| l = (*p++) & 0xf; |
| p += l; |
| mt = *p++; |
| oldpos = 0; |
| while ((p - skb->data) < skb->len) { |
| if ((*p & 0xf0) == 0x90) { /* shift codeset */ |
| old_codeset = codeset; |
| codeset = *p & 7; |
| if (*p & 0x08) |
| codelock = 0; |
| else |
| codelock = 1; |
| if (pc->debug & L3_DEB_CHECK) |
| l3_debug(pc->st, "check IE shift%scodeset %d->%d", |
| codelock ? " locking " : " ", old_codeset, codeset); |
| p++; |
| continue; |
| } |
| if (!codeset) { /* only codeset 0 */ |
| if ((newpos = ie_in_set(pc, *p, cl))) { |
| if (newpos > 0) { |
| if (newpos < oldpos) |
| err_seq++; |
| else |
| oldpos = newpos; |
| } |
| } else { |
| if (ie_in_set(pc, *p, comp_required)) |
| err_compr++; |
| else |
| err_ureg++; |
| } |
| } |
| ie = *p++; |
| if (ie & 0x80) { |
| l = 1; |
| } else { |
| l = *p++; |
| p += l; |
| l += 2; |
| } |
| if (!codeset && (l > getmax_ie_len(ie))) |
| err_len++; |
| if (!codelock) { |
| if (pc->debug & L3_DEB_CHECK) |
| l3_debug(pc->st, "check IE shift back codeset %d->%d", |
| codeset, old_codeset); |
| codeset = old_codeset; |
| codelock = 1; |
| } |
| } |
| if (err_compr | err_ureg | err_len | err_seq) { |
| if (pc->debug & L3_DEB_CHECK) |
| l3_debug(pc->st, "check IE MT(%x) %d/%d/%d/%d", |
| mt, err_compr, err_ureg, err_len, err_seq); |
| if (err_compr) |
| return (ERR_IE_COMPREHENSION); |
| if (err_ureg) |
| return (ERR_IE_UNRECOGNIZED); |
| if (err_len) |
| return (ERR_IE_LENGTH); |
| if (err_seq) |
| return (ERR_IE_SEQUENCE); |
| } |
| return (0); |
| } |
| |
| /* verify if a message type exists and contain no IE error */ |
| static int |
| l3ni1_check_messagetype_validity(struct l3_process *pc, int mt, void *arg) |
| { |
| switch (mt) { |
| case MT_ALERTING: |
| case MT_CALL_PROCEEDING: |
| case MT_CONNECT: |
| case MT_CONNECT_ACKNOWLEDGE: |
| case MT_DISCONNECT: |
| case MT_INFORMATION: |
| case MT_FACILITY: |
| case MT_NOTIFY: |
| case MT_PROGRESS: |
| case MT_RELEASE: |
| case MT_RELEASE_COMPLETE: |
| case MT_SETUP: |
| case MT_SETUP_ACKNOWLEDGE: |
| case MT_RESUME_ACKNOWLEDGE: |
| case MT_RESUME_REJECT: |
| case MT_SUSPEND_ACKNOWLEDGE: |
| case MT_SUSPEND_REJECT: |
| case MT_USER_INFORMATION: |
| case MT_RESTART: |
| case MT_RESTART_ACKNOWLEDGE: |
| case MT_CONGESTION_CONTROL: |
| case MT_STATUS: |
| case MT_STATUS_ENQUIRY: |
| if (pc->debug & L3_DEB_CHECK) |
| l3_debug(pc->st, "l3ni1_check_messagetype_validity mt(%x) OK", mt); |
| break; |
| case MT_RESUME: /* RESUME only in user->net */ |
| case MT_SUSPEND: /* SUSPEND only in user->net */ |
| default: |
| if (pc->debug & (L3_DEB_CHECK | L3_DEB_WARN)) |
| l3_debug(pc->st, "l3ni1_check_messagetype_validity mt(%x) fail", mt); |
| pc->para.cause = 97; |
| l3ni1_status_send(pc, 0, NULL); |
| return (1); |
| } |
| return (0); |
| } |
| |
| static void |
| l3ni1_std_ie_err(struct l3_process *pc, int ret) { |
| |
| if (pc->debug & L3_DEB_CHECK) |
| l3_debug(pc->st, "check_infoelements ret %d", ret); |
| switch (ret) { |
| case 0: |
| break; |
| case ERR_IE_COMPREHENSION: |
| pc->para.cause = 96; |
| l3ni1_status_send(pc, 0, NULL); |
| break; |
| case ERR_IE_UNRECOGNIZED: |
| pc->para.cause = 99; |
| l3ni1_status_send(pc, 0, NULL); |
| break; |
| case ERR_IE_LENGTH: |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, 0, NULL); |
| break; |
| case ERR_IE_SEQUENCE: |
| default: |
| break; |
| } |
| } |
| |
| static int |
| l3ni1_get_channel_id(struct l3_process *pc, struct sk_buff *skb) { |
| u_char *p; |
| |
| p = skb->data; |
| if ((p = findie(p, skb->len, IE_CHANNEL_ID, 0))) { |
| p++; |
| if (*p != 1) { /* len for BRI = 1 */ |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "wrong chid len %d", *p); |
| return (-2); |
| } |
| p++; |
| if (*p & 0x60) { /* only base rate interface */ |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "wrong chid %x", *p); |
| return (-3); |
| } |
| return (*p & 0x3); |
| } else |
| return (-1); |
| } |
| |
| static int |
| l3ni1_get_cause(struct l3_process *pc, struct sk_buff *skb) { |
| u_char l, i = 0; |
| u_char *p; |
| |
| p = skb->data; |
| pc->para.cause = 31; |
| pc->para.loc = 0; |
| if ((p = findie(p, skb->len, IE_CAUSE, 0))) { |
| p++; |
| l = *p++; |
| if (l > 30) |
| return (1); |
| if (l) { |
| pc->para.loc = *p++; |
| l--; |
| } else { |
| return (2); |
| } |
| if (l && !(pc->para.loc & 0x80)) { |
| l--; |
| p++; /* skip recommendation */ |
| } |
| if (l) { |
| pc->para.cause = *p++; |
| l--; |
| if (!(pc->para.cause & 0x80)) |
| return (3); |
| } else |
| return (4); |
| while (l && (i < 6)) { |
| pc->para.diag[i++] = *p++; |
| l--; |
| } |
| } else |
| return (-1); |
| return (0); |
| } |
| |
| static void |
| l3ni1_msg_with_uus(struct l3_process *pc, u_char cmd) |
| { |
| struct sk_buff *skb; |
| u_char tmp[16 + 40]; |
| u_char *p = tmp; |
| int l; |
| |
| MsgHead(p, pc->callref, cmd); |
| |
| if (pc->prot.ni1.uus1_data[0]) |
| { *p++ = IE_USER_USER; /* UUS info element */ |
| *p++ = strlen(pc->prot.ni1.uus1_data) + 1; |
| *p++ = 0x04; /* IA5 chars */ |
| strcpy(p, pc->prot.ni1.uus1_data); |
| p += strlen(pc->prot.ni1.uus1_data); |
| pc->prot.ni1.uus1_data[0] = '\0'; |
| } |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } /* l3ni1_msg_with_uus */ |
| |
| static void |
| l3ni1_release_req(struct l3_process *pc, u_char pr, void *arg) |
| { |
| StopAllL3Timer(pc); |
| newl3state(pc, 19); |
| if (!pc->prot.ni1.uus1_data[0]) |
| l3ni1_message(pc, MT_RELEASE); |
| else |
| l3ni1_msg_with_uus(pc, MT_RELEASE); |
| L3AddTimer(&pc->timer, T308, CC_T308_1); |
| } |
| |
| static void |
| l3ni1_release_cmpl(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| if ((ret = l3ni1_get_cause(pc, skb)) > 0) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "RELCMPL get_cause ret(%d)", ret); |
| } else if (ret < 0) |
| pc->para.cause = NO_CAUSE; |
| StopAllL3Timer(pc); |
| newl3state(pc, 0); |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | CONFIRM, pc); |
| ni1_release_l3_process(pc); |
| } |
| |
| #if EXT_BEARER_CAPS |
| |
| static u_char * |
| EncodeASyncParams(u_char *p, u_char si2) |
| { // 7c 06 88 90 21 42 00 bb |
| |
| p[0] = 0; |
| p[1] = 0x40; // Intermediate rate: 16 kbit/s jj 2000.02.19 |
| p[2] = 0x80; |
| if (si2 & 32) // 7 data bits |
| |
| p[2] += 16; |
| else // 8 data bits |
| |
| p[2] += 24; |
| |
| if (si2 & 16) // 2 stop bits |
| |
| p[2] += 96; |
| else // 1 stop bit |
| |
| p[2] += 32; |
| |
| if (si2 & 8) // even parity |
| |
| p[2] += 2; |
| else // no parity |
| |
| p[2] += 3; |
| |
| switch (si2 & 0x07) { |
| case 0: |
| p[0] = 66; // 1200 bit/s |
| |
| break; |
| case 1: |
| p[0] = 88; // 1200/75 bit/s |
| |
| break; |
| case 2: |
| p[0] = 87; // 75/1200 bit/s |
| |
| break; |
| case 3: |
| p[0] = 67; // 2400 bit/s |
| |
| break; |
| case 4: |
| p[0] = 69; // 4800 bit/s |
| |
| break; |
| case 5: |
| p[0] = 72; // 9600 bit/s |
| |
| break; |
| case 6: |
| p[0] = 73; // 14400 bit/s |
| |
| break; |
| case 7: |
| p[0] = 75; // 19200 bit/s |
| |
| break; |
| } |
| return p + 3; |
| } |
| |
| static u_char |
| EncodeSyncParams(u_char si2, u_char ai) |
| { |
| |
| switch (si2) { |
| case 0: |
| return ai + 2; // 1200 bit/s |
| |
| case 1: |
| return ai + 24; // 1200/75 bit/s |
| |
| case 2: |
| return ai + 23; // 75/1200 bit/s |
| |
| case 3: |
| return ai + 3; // 2400 bit/s |
| |
| case 4: |
| return ai + 5; // 4800 bit/s |
| |
| case 5: |
| return ai + 8; // 9600 bit/s |
| |
| case 6: |
| return ai + 9; // 14400 bit/s |
| |
| case 7: |
| return ai + 11; // 19200 bit/s |
| |
| case 8: |
| return ai + 14; // 48000 bit/s |
| |
| case 9: |
| return ai + 15; // 56000 bit/s |
| |
| case 15: |
| return ai + 40; // negotiate bit/s |
| |
| default: |
| break; |
| } |
| return ai; |
| } |
| |
| |
| static u_char |
| DecodeASyncParams(u_char si2, u_char *p) |
| { |
| u_char info; |
| |
| switch (p[5]) { |
| case 66: // 1200 bit/s |
| |
| break; // si2 don't change |
| |
| case 88: // 1200/75 bit/s |
| |
| si2 += 1; |
| break; |
| case 87: // 75/1200 bit/s |
| |
| si2 += 2; |
| break; |
| case 67: // 2400 bit/s |
| |
| si2 += 3; |
| break; |
| case 69: // 4800 bit/s |
| |
| si2 += 4; |
| break; |
| case 72: // 9600 bit/s |
| |
| si2 += 5; |
| break; |
| case 73: // 14400 bit/s |
| |
| si2 += 6; |
| break; |
| case 75: // 19200 bit/s |
| |
| si2 += 7; |
| break; |
| } |
| |
| info = p[7] & 0x7f; |
| if ((info & 16) && (!(info & 8))) // 7 data bits |
| |
| si2 += 32; // else 8 data bits |
| |
| if ((info & 96) == 96) // 2 stop bits |
| |
| si2 += 16; // else 1 stop bit |
| |
| if ((info & 2) && (!(info & 1))) // even parity |
| |
| si2 += 8; // else no parity |
| |
| return si2; |
| } |
| |
| |
| static u_char |
| DecodeSyncParams(u_char si2, u_char info) |
| { |
| info &= 0x7f; |
| switch (info) { |
| case 40: // bit/s negotiation failed ai := 165 not 175! |
| |
| return si2 + 15; |
| case 15: // 56000 bit/s failed, ai := 0 not 169 ! |
| |
| return si2 + 9; |
| case 14: // 48000 bit/s |
| |
| return si2 + 8; |
| case 11: // 19200 bit/s |
| |
| return si2 + 7; |
| case 9: // 14400 bit/s |
| |
| return si2 + 6; |
| case 8: // 9600 bit/s |
| |
| return si2 + 5; |
| case 5: // 4800 bit/s |
| |
| return si2 + 4; |
| case 3: // 2400 bit/s |
| |
| return si2 + 3; |
| case 23: // 75/1200 bit/s |
| |
| return si2 + 2; |
| case 24: // 1200/75 bit/s |
| |
| return si2 + 1; |
| default: // 1200 bit/s |
| |
| return si2; |
| } |
| } |
| |
| static u_char |
| DecodeSI2(struct sk_buff *skb) |
| { |
| u_char *p; //, *pend=skb->data + skb->len; |
| |
| if ((p = findie(skb->data, skb->len, 0x7c, 0))) { |
| switch (p[4] & 0x0f) { |
| case 0x01: |
| if (p[1] == 0x04) // sync. Bitratenadaption |
| |
| return DecodeSyncParams(160, p[5]); // V.110/X.30 |
| |
| else if (p[1] == 0x06) // async. Bitratenadaption |
| |
| return DecodeASyncParams(192, p); // V.110/X.30 |
| |
| break; |
| case 0x08: // if (p[5] == 0x02) // sync. Bitratenadaption |
| if (p[1] > 3) |
| return DecodeSyncParams(176, p[5]); // V.120 |
| break; |
| } |
| } |
| return 0; |
| } |
| |
| #endif |
| |
| |
| static void |
| l3ni1_setup_req(struct l3_process *pc, u_char pr, |
| void *arg) |
| { |
| struct sk_buff *skb; |
| u_char tmp[128]; |
| u_char *p = tmp; |
| |
| u_char *teln; |
| u_char *sub; |
| u_char *sp; |
| int l; |
| |
| MsgHead(p, pc->callref, MT_SETUP); |
| |
| teln = pc->para.setup.phone; |
| |
| *p++ = 0xa1; /* complete indicator */ |
| /* |
| * Set Bearer Capability, Map info from 1TR6-convention to NI1 |
| */ |
| switch (pc->para.setup.si1) { |
| case 1: /* Telephony */ |
| *p++ = IE_BEARER; |
| *p++ = 0x3; /* Length */ |
| *p++ = 0x90; /* 3.1khz Audio */ |
| *p++ = 0x90; /* Circuit-Mode 64kbps */ |
| *p++ = 0xa2; /* u-Law Audio */ |
| break; |
| case 5: /* Datatransmission 64k, BTX */ |
| case 7: /* Datatransmission 64k */ |
| default: |
| *p++ = IE_BEARER; |
| *p++ = 0x2; /* Length */ |
| *p++ = 0x88; /* Coding Std. CCITT, unrestr. dig. Inform. */ |
| *p++ = 0x90; /* Circuit-Mode 64kbps */ |
| break; |
| } |
| |
| sub = NULL; |
| sp = teln; |
| while (*sp) { |
| if ('.' == *sp) { |
| sub = sp; |
| *sp = 0; |
| } else |
| sp++; |
| } |
| |
| *p++ = IE_KEYPAD; |
| *p++ = strlen(teln); |
| while (*teln) |
| *p++ = (*teln++) & 0x7F; |
| |
| if (sub) |
| *sub++ = '.'; |
| |
| #if EXT_BEARER_CAPS |
| if ((pc->para.setup.si2 >= 160) && (pc->para.setup.si2 <= 175)) { // sync. Bitratenadaption, V.110/X.30 |
| |
| *p++ = IE_LLC; |
| *p++ = 0x04; |
| *p++ = 0x88; |
| *p++ = 0x90; |
| *p++ = 0x21; |
| *p++ = EncodeSyncParams(pc->para.setup.si2 - 160, 0x80); |
| } else if ((pc->para.setup.si2 >= 176) && (pc->para.setup.si2 <= 191)) { // sync. Bitratenadaption, V.120 |
| |
| *p++ = IE_LLC; |
| *p++ = 0x05; |
| *p++ = 0x88; |
| *p++ = 0x90; |
| *p++ = 0x28; |
| *p++ = EncodeSyncParams(pc->para.setup.si2 - 176, 0); |
| *p++ = 0x82; |
| } else if (pc->para.setup.si2 >= 192) { // async. Bitratenadaption, V.110/X.30 |
| |
| *p++ = IE_LLC; |
| *p++ = 0x06; |
| *p++ = 0x88; |
| *p++ = 0x90; |
| *p++ = 0x21; |
| p = EncodeASyncParams(p, pc->para.setup.si2 - 192); |
| } else { |
| switch (pc->para.setup.si1) { |
| case 1: /* Telephony */ |
| *p++ = IE_LLC; |
| *p++ = 0x3; /* Length */ |
| *p++ = 0x90; /* Coding Std. CCITT, 3.1 kHz audio */ |
| *p++ = 0x90; /* Circuit-Mode 64kbps */ |
| *p++ = 0xa2; /* u-Law Audio */ |
| break; |
| case 5: /* Datatransmission 64k, BTX */ |
| case 7: /* Datatransmission 64k */ |
| default: |
| *p++ = IE_LLC; |
| *p++ = 0x2; /* Length */ |
| *p++ = 0x88; /* Coding Std. CCITT, unrestr. dig. Inform. */ |
| *p++ = 0x90; /* Circuit-Mode 64kbps */ |
| break; |
| } |
| } |
| #endif |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| { |
| return; |
| } |
| memcpy(skb_put(skb, l), tmp, l); |
| L3DelTimer(&pc->timer); |
| L3AddTimer(&pc->timer, T303, CC_T303); |
| newl3state(pc, 1); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void |
| l3ni1_call_proc(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int id, ret; |
| |
| if ((id = l3ni1_get_channel_id(pc, skb)) >= 0) { |
| if ((0 == id) || ((3 == id) && (0x10 == pc->para.moderate))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup answer with wrong chid %x", id); |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| pc->para.bchannel = id; |
| } else if (1 == pc->state) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup answer wrong chid (ret %d)", id); |
| if (id == -1) |
| pc->para.cause = 96; |
| else |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| /* Now we are on none mandatory IEs */ |
| ret = check_infoelements(pc, skb, ie_CALL_PROCEEDING); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); |
| newl3state(pc, 3); |
| L3AddTimer(&pc->timer, T310, CC_T310); |
| if (ret) /* STATUS for none mandatory IE errors after actions are taken */ |
| l3ni1_std_ie_err(pc, ret); |
| pc->st->l3.l3l4(pc->st, CC_PROCEEDING | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_setup_ack(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int id, ret; |
| |
| if ((id = l3ni1_get_channel_id(pc, skb)) >= 0) { |
| if ((0 == id) || ((3 == id) && (0x10 == pc->para.moderate))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup answer with wrong chid %x", id); |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| pc->para.bchannel = id; |
| } else { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup answer wrong chid (ret %d)", id); |
| if (id == -1) |
| pc->para.cause = 96; |
| else |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| /* Now we are on none mandatory IEs */ |
| ret = check_infoelements(pc, skb, ie_SETUP_ACKNOWLEDGE); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); |
| newl3state(pc, 2); |
| L3AddTimer(&pc->timer, T304, CC_T304); |
| if (ret) /* STATUS for none mandatory IE errors after actions are taken */ |
| l3ni1_std_ie_err(pc, ret); |
| pc->st->l3.l3l4(pc->st, CC_MORE_INFO | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_disconnect(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| u_char *p; |
| int ret; |
| u_char cause = 0; |
| |
| StopAllL3Timer(pc); |
| if ((ret = l3ni1_get_cause(pc, skb))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "DISC get_cause ret(%d)", ret); |
| if (ret < 0) |
| cause = 96; |
| else if (ret > 0) |
| cause = 100; |
| } |
| if ((p = findie(skb->data, skb->len, IE_FACILITY, 0))) |
| l3ni1_parse_facility(pc->st, pc, pc->callref, p); |
| ret = check_infoelements(pc, skb, ie_DISCONNECT); |
| if (ERR_IE_COMPREHENSION == ret) |
| cause = 96; |
| else if ((!cause) && (ERR_IE_UNRECOGNIZED == ret)) |
| cause = 99; |
| ret = pc->state; |
| newl3state(pc, 12); |
| if (cause) |
| newl3state(pc, 19); |
| if (11 != ret) |
| pc->st->l3.l3l4(pc->st, CC_DISCONNECT | INDICATION, pc); |
| else if (!cause) |
| l3ni1_release_req(pc, pr, NULL); |
| if (cause) { |
| l3ni1_message_cause(pc, MT_RELEASE, cause); |
| L3AddTimer(&pc->timer, T308, CC_T308_1); |
| } |
| } |
| |
| static void |
| l3ni1_connect(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| ret = check_infoelements(pc, skb, ie_CONNECT); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); /* T310 */ |
| newl3state(pc, 10); |
| pc->para.chargeinfo = 0; |
| /* here should inserted COLP handling KKe */ |
| if (ret) |
| l3ni1_std_ie_err(pc, ret); |
| pc->st->l3.l3l4(pc->st, CC_SETUP | CONFIRM, pc); |
| } |
| |
| static void |
| l3ni1_alerting(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| ret = check_infoelements(pc, skb, ie_ALERTING); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); /* T304 */ |
| newl3state(pc, 4); |
| if (ret) |
| l3ni1_std_ie_err(pc, ret); |
| pc->st->l3.l3l4(pc->st, CC_ALERTING | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_setup(struct l3_process *pc, u_char pr, void *arg) |
| { |
| u_char *p; |
| int bcfound = 0; |
| char tmp[80]; |
| struct sk_buff *skb = arg; |
| int id; |
| int err = 0; |
| |
| /* |
| * Bearer Capabilities |
| */ |
| p = skb->data; |
| /* only the first occurrence 'll be detected ! */ |
| if ((p = findie(p, skb->len, 0x04, 0))) { |
| if ((p[1] < 2) || (p[1] > 11)) |
| err = 1; |
| else { |
| pc->para.setup.si2 = 0; |
| switch (p[2] & 0x7f) { |
| case 0x00: /* Speech */ |
| case 0x10: /* 3.1 Khz audio */ |
| pc->para.setup.si1 = 1; |
| break; |
| case 0x08: /* Unrestricted digital information */ |
| pc->para.setup.si1 = 7; |
| /* JIM, 05.11.97 I wanna set service indicator 2 */ |
| #if EXT_BEARER_CAPS |
| pc->para.setup.si2 = DecodeSI2(skb); |
| #endif |
| break; |
| case 0x09: /* Restricted digital information */ |
| pc->para.setup.si1 = 2; |
| break; |
| case 0x11: |
| /* Unrestr. digital information with |
| * tones/announcements ( or 7 kHz audio |
| */ |
| pc->para.setup.si1 = 3; |
| break; |
| case 0x18: /* Video */ |
| pc->para.setup.si1 = 4; |
| break; |
| default: |
| err = 2; |
| break; |
| } |
| switch (p[3] & 0x7f) { |
| case 0x40: /* packed mode */ |
| pc->para.setup.si1 = 8; |
| break; |
| case 0x10: /* 64 kbit */ |
| case 0x11: /* 2*64 kbit */ |
| case 0x13: /* 384 kbit */ |
| case 0x15: /* 1536 kbit */ |
| case 0x17: /* 1920 kbit */ |
| pc->para.moderate = p[3] & 0x7f; |
| break; |
| default: |
| err = 3; |
| break; |
| } |
| } |
| if (pc->debug & L3_DEB_SI) |
| l3_debug(pc->st, "SI=%d, AI=%d", |
| pc->para.setup.si1, pc->para.setup.si2); |
| if (err) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup with wrong bearer(l=%d:%x,%x)", |
| p[1], p[2], p[3]); |
| pc->para.cause = 100; |
| l3ni1_msg_without_setup(pc, pr, NULL); |
| return; |
| } |
| } else { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup without bearer capabilities"); |
| /* ETS 300-104 1.3.3 */ |
| pc->para.cause = 96; |
| l3ni1_msg_without_setup(pc, pr, NULL); |
| return; |
| } |
| /* |
| * Channel Identification |
| */ |
| if ((id = l3ni1_get_channel_id(pc, skb)) >= 0) { |
| if ((pc->para.bchannel = id)) { |
| if ((3 == id) && (0x10 == pc->para.moderate)) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup with wrong chid %x", |
| id); |
| pc->para.cause = 100; |
| l3ni1_msg_without_setup(pc, pr, NULL); |
| return; |
| } |
| bcfound++; |
| } else |
| { if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup without bchannel, call waiting"); |
| bcfound++; |
| } |
| } else { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "setup with wrong chid ret %d", id); |
| if (id == -1) |
| pc->para.cause = 96; |
| else |
| pc->para.cause = 100; |
| l3ni1_msg_without_setup(pc, pr, NULL); |
| return; |
| } |
| /* Now we are on none mandatory IEs */ |
| err = check_infoelements(pc, skb, ie_SETUP); |
| if (ERR_IE_COMPREHENSION == err) { |
| pc->para.cause = 96; |
| l3ni1_msg_without_setup(pc, pr, NULL); |
| return; |
| } |
| p = skb->data; |
| if ((p = findie(p, skb->len, 0x70, 0))) |
| iecpy(pc->para.setup.eazmsn, p, 1); |
| else |
| pc->para.setup.eazmsn[0] = 0; |
| |
| p = skb->data; |
| if ((p = findie(p, skb->len, 0x71, 0))) { |
| /* Called party subaddress */ |
| if ((p[1] >= 2) && (p[2] == 0x80) && (p[3] == 0x50)) { |
| tmp[0] = '.'; |
| iecpy(&tmp[1], p, 2); |
| strcat(pc->para.setup.eazmsn, tmp); |
| } else if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "wrong called subaddress"); |
| } |
| p = skb->data; |
| if ((p = findie(p, skb->len, 0x6c, 0))) { |
| pc->para.setup.plan = p[2]; |
| if (p[2] & 0x80) { |
| iecpy(pc->para.setup.phone, p, 1); |
| pc->para.setup.screen = 0; |
| } else { |
| iecpy(pc->para.setup.phone, p, 2); |
| pc->para.setup.screen = p[3]; |
| } |
| } else { |
| pc->para.setup.phone[0] = 0; |
| pc->para.setup.plan = 0; |
| pc->para.setup.screen = 0; |
| } |
| p = skb->data; |
| if ((p = findie(p, skb->len, 0x6d, 0))) { |
| /* Calling party subaddress */ |
| if ((p[1] >= 2) && (p[2] == 0x80) && (p[3] == 0x50)) { |
| tmp[0] = '.'; |
| iecpy(&tmp[1], p, 2); |
| strcat(pc->para.setup.phone, tmp); |
| } else if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "wrong calling subaddress"); |
| } |
| newl3state(pc, 6); |
| if (err) /* STATUS for none mandatory IE errors after actions are taken */ |
| l3ni1_std_ie_err(pc, err); |
| pc->st->l3.l3l4(pc->st, CC_SETUP | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_reset(struct l3_process *pc, u_char pr, void *arg) |
| { |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_disconnect_req(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb; |
| u_char tmp[16 + 40]; |
| u_char *p = tmp; |
| int l; |
| u_char cause = 16; |
| |
| if (pc->para.cause != NO_CAUSE) |
| cause = pc->para.cause; |
| |
| StopAllL3Timer(pc); |
| |
| MsgHead(p, pc->callref, MT_DISCONNECT); |
| |
| *p++ = IE_CAUSE; |
| *p++ = 0x2; |
| *p++ = 0x80; |
| *p++ = cause | 0x80; |
| |
| if (pc->prot.ni1.uus1_data[0]) |
| { *p++ = IE_USER_USER; /* UUS info element */ |
| *p++ = strlen(pc->prot.ni1.uus1_data) + 1; |
| *p++ = 0x04; /* IA5 chars */ |
| strcpy(p, pc->prot.ni1.uus1_data); |
| p += strlen(pc->prot.ni1.uus1_data); |
| pc->prot.ni1.uus1_data[0] = '\0'; |
| } |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| newl3state(pc, 11); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| L3AddTimer(&pc->timer, T305, CC_T305); |
| } |
| |
| static void |
| l3ni1_setup_rsp(struct l3_process *pc, u_char pr, |
| void *arg) |
| { |
| if (!pc->para.bchannel) |
| { if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "D-chan connect for waiting call"); |
| l3ni1_disconnect_req(pc, pr, arg); |
| return; |
| } |
| newl3state(pc, 8); |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "D-chan connect for waiting call"); |
| l3ni1_message_plus_chid(pc, MT_CONNECT); /* GE 05/09/00 */ |
| L3DelTimer(&pc->timer); |
| L3AddTimer(&pc->timer, T313, CC_T313); |
| } |
| |
| static void |
| l3ni1_connect_ack(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| ret = check_infoelements(pc, skb, ie_CONNECT_ACKNOWLEDGE); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| newl3state(pc, 10); |
| L3DelTimer(&pc->timer); |
| if (ret) |
| l3ni1_std_ie_err(pc, ret); |
| pc->st->l3.l3l4(pc->st, CC_SETUP_COMPL | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_reject_req(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb; |
| u_char tmp[16]; |
| u_char *p = tmp; |
| int l; |
| u_char cause = 21; |
| |
| if (pc->para.cause != NO_CAUSE) |
| cause = pc->para.cause; |
| |
| MsgHead(p, pc->callref, MT_RELEASE_COMPLETE); |
| |
| *p++ = IE_CAUSE; |
| *p++ = 0x2; |
| *p++ = 0x80; |
| *p++ = cause | 0x80; |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); |
| newl3state(pc, 0); |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_release(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| u_char *p; |
| int ret, cause = 0; |
| |
| StopAllL3Timer(pc); |
| if ((ret = l3ni1_get_cause(pc, skb)) > 0) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "REL get_cause ret(%d)", ret); |
| } else if (ret < 0) |
| pc->para.cause = NO_CAUSE; |
| if ((p = findie(skb->data, skb->len, IE_FACILITY, 0))) { |
| l3ni1_parse_facility(pc->st, pc, pc->callref, p); |
| } |
| if ((ret < 0) && (pc->state != 11)) |
| cause = 96; |
| else if (ret > 0) |
| cause = 100; |
| ret = check_infoelements(pc, skb, ie_RELEASE); |
| if (ERR_IE_COMPREHENSION == ret) |
| cause = 96; |
| else if ((ERR_IE_UNRECOGNIZED == ret) && (!cause)) |
| cause = 99; |
| if (cause) |
| l3ni1_message_cause(pc, MT_RELEASE_COMPLETE, cause); |
| else |
| l3ni1_message(pc, MT_RELEASE_COMPLETE); |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); |
| newl3state(pc, 0); |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_alert_req(struct l3_process *pc, u_char pr, |
| void *arg) |
| { |
| newl3state(pc, 7); |
| if (!pc->prot.ni1.uus1_data[0]) |
| l3ni1_message(pc, MT_ALERTING); |
| else |
| l3ni1_msg_with_uus(pc, MT_ALERTING); |
| } |
| |
| static void |
| l3ni1_proceed_req(struct l3_process *pc, u_char pr, |
| void *arg) |
| { |
| newl3state(pc, 9); |
| l3ni1_message(pc, MT_CALL_PROCEEDING); |
| pc->st->l3.l3l4(pc->st, CC_PROCEED_SEND | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_setup_ack_req(struct l3_process *pc, u_char pr, |
| void *arg) |
| { |
| newl3state(pc, 25); |
| L3DelTimer(&pc->timer); |
| L3AddTimer(&pc->timer, T302, CC_T302); |
| l3ni1_message(pc, MT_SETUP_ACKNOWLEDGE); |
| } |
| |
| /********************************************/ |
| /* deliver a incoming display message to HL */ |
| /********************************************/ |
| static void |
| l3ni1_deliver_display(struct l3_process *pc, int pr, u_char *infp) |
| { u_char len; |
| isdn_ctrl ic; |
| struct IsdnCardState *cs; |
| char *p; |
| |
| if (*infp++ != IE_DISPLAY) return; |
| if ((len = *infp++) > 80) return; /* total length <= 82 */ |
| if (!pc->chan) return; |
| |
| p = ic.parm.display; |
| while (len--) |
| *p++ = *infp++; |
| *p = '\0'; |
| ic.command = ISDN_STAT_DISPLAY; |
| cs = pc->st->l1.hardware; |
| ic.driver = cs->myid; |
| ic.arg = pc->chan->chan; |
| cs->iif.statcallb(&ic); |
| } /* l3ni1_deliver_display */ |
| |
| |
| static void |
| l3ni1_progress(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int err = 0; |
| u_char *p; |
| |
| if ((p = findie(skb->data, skb->len, IE_PROGRESS, 0))) { |
| if (p[1] != 2) { |
| err = 1; |
| pc->para.cause = 100; |
| } else if (!(p[2] & 0x70)) { |
| switch (p[2]) { |
| case 0x80: |
| case 0x81: |
| case 0x82: |
| case 0x84: |
| case 0x85: |
| case 0x87: |
| case 0x8a: |
| switch (p[3]) { |
| case 0x81: |
| case 0x82: |
| case 0x83: |
| case 0x84: |
| case 0x88: |
| break; |
| default: |
| err = 2; |
| pc->para.cause = 100; |
| break; |
| } |
| break; |
| default: |
| err = 3; |
| pc->para.cause = 100; |
| break; |
| } |
| } |
| } else { |
| pc->para.cause = 96; |
| err = 4; |
| } |
| if (err) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "progress error %d", err); |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| /* Now we are on none mandatory IEs */ |
| err = check_infoelements(pc, skb, ie_PROGRESS); |
| if (err) |
| l3ni1_std_ie_err(pc, err); |
| if (ERR_IE_COMPREHENSION != err) |
| pc->st->l3.l3l4(pc->st, CC_PROGRESS | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_notify(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int err = 0; |
| u_char *p; |
| |
| if ((p = findie(skb->data, skb->len, IE_NOTIFY, 0))) { |
| if (p[1] != 1) { |
| err = 1; |
| pc->para.cause = 100; |
| } else { |
| switch (p[2]) { |
| case 0x80: |
| case 0x81: |
| case 0x82: |
| break; |
| default: |
| pc->para.cause = 100; |
| err = 2; |
| break; |
| } |
| } |
| } else { |
| pc->para.cause = 96; |
| err = 3; |
| } |
| if (err) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "notify error %d", err); |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| /* Now we are on none mandatory IEs */ |
| err = check_infoelements(pc, skb, ie_NOTIFY); |
| if (err) |
| l3ni1_std_ie_err(pc, err); |
| if (ERR_IE_COMPREHENSION != err) |
| pc->st->l3.l3l4(pc->st, CC_NOTIFY | INDICATION, pc); |
| } |
| |
| static void |
| l3ni1_status_enq(struct l3_process *pc, u_char pr, void *arg) |
| { |
| int ret; |
| struct sk_buff *skb = arg; |
| |
| ret = check_infoelements(pc, skb, ie_STATUS_ENQUIRY); |
| l3ni1_std_ie_err(pc, ret); |
| pc->para.cause = 30; /* response to STATUS_ENQUIRY */ |
| l3ni1_status_send(pc, pr, NULL); |
| } |
| |
| static void |
| l3ni1_information(struct l3_process *pc, u_char pr, void *arg) |
| { |
| int ret; |
| struct sk_buff *skb = arg; |
| u_char *p; |
| char tmp[32]; |
| |
| ret = check_infoelements(pc, skb, ie_INFORMATION); |
| if (ret) |
| l3ni1_std_ie_err(pc, ret); |
| if (pc->state == 25) { /* overlap receiving */ |
| L3DelTimer(&pc->timer); |
| p = skb->data; |
| if ((p = findie(p, skb->len, 0x70, 0))) { |
| iecpy(tmp, p, 1); |
| strcat(pc->para.setup.eazmsn, tmp); |
| pc->st->l3.l3l4(pc->st, CC_MORE_INFO | INDICATION, pc); |
| } |
| L3AddTimer(&pc->timer, T302, CC_T302); |
| } |
| } |
| |
| /******************************/ |
| /* handle deflection requests */ |
| /******************************/ |
| static void l3ni1_redir_req(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb; |
| u_char tmp[128]; |
| u_char *p = tmp; |
| u_char *subp; |
| u_char len_phone = 0; |
| u_char len_sub = 0; |
| int l; |
| |
| |
| strcpy(pc->prot.ni1.uus1_data, pc->chan->setup.eazmsn); /* copy uus element if available */ |
| if (!pc->chan->setup.phone[0]) |
| { pc->para.cause = -1; |
| l3ni1_disconnect_req(pc, pr, arg); /* disconnect immediately */ |
| return; |
| } /* only uus */ |
| |
| if (pc->prot.ni1.invoke_id) |
| free_invoke_id(pc->st, pc->prot.ni1.invoke_id); |
| |
| if (!(pc->prot.ni1.invoke_id = new_invoke_id(pc->st))) |
| return; |
| |
| MsgHead(p, pc->callref, MT_FACILITY); |
| |
| for (subp = pc->chan->setup.phone; (*subp) && (*subp != '.'); subp++) len_phone++; /* len of phone number */ |
| if (*subp++ == '.') len_sub = strlen(subp) + 2; /* length including info subaddress element */ |
| |
| *p++ = 0x1c; /* Facility info element */ |
| *p++ = len_phone + len_sub + 2 + 2 + 8 + 3 + 3; /* length of element */ |
| *p++ = 0x91; /* remote operations protocol */ |
| *p++ = 0xa1; /* invoke component */ |
| |
| *p++ = len_phone + len_sub + 2 + 2 + 8 + 3; /* length of data */ |
| *p++ = 0x02; /* invoke id tag, integer */ |
| *p++ = 0x01; /* length */ |
| *p++ = pc->prot.ni1.invoke_id; /* invoke id */ |
| *p++ = 0x02; /* operation value tag, integer */ |
| *p++ = 0x01; /* length */ |
| *p++ = 0x0D; /* Call Deflect */ |
| |
| *p++ = 0x30; /* sequence phone number */ |
| *p++ = len_phone + 2 + 2 + 3 + len_sub; /* length */ |
| |
| *p++ = 0x30; /* Deflected to UserNumber */ |
| *p++ = len_phone + 2 + len_sub; /* length */ |
| *p++ = 0x80; /* NumberDigits */ |
| *p++ = len_phone; /* length */ |
| for (l = 0; l < len_phone; l++) |
| *p++ = pc->chan->setup.phone[l]; |
| |
| if (len_sub) |
| { *p++ = 0x04; /* called party subaddress */ |
| *p++ = len_sub - 2; |
| while (*subp) *p++ = *subp++; |
| } |
| |
| *p++ = 0x01; /* screening identifier */ |
| *p++ = 0x01; |
| *p++ = pc->chan->setup.screen; |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) return; |
| memcpy(skb_put(skb, l), tmp, l); |
| |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } /* l3ni1_redir_req */ |
| |
| /********************************************/ |
| /* handle deflection request in early state */ |
| /********************************************/ |
| static void l3ni1_redir_req_early(struct l3_process *pc, u_char pr, void *arg) |
| { |
| l3ni1_proceed_req(pc, pr, arg); |
| l3ni1_redir_req(pc, pr, arg); |
| } /* l3ni1_redir_req_early */ |
| |
| /***********************************************/ |
| /* handle special commands for this protocol. */ |
| /* Examples are call independent services like */ |
| /* remote operations with dummy callref. */ |
| /***********************************************/ |
| static int l3ni1_cmd_global(struct PStack *st, isdn_ctrl *ic) |
| { u_char id; |
| u_char temp[265]; |
| u_char *p = temp; |
| int i, l, proc_len; |
| struct sk_buff *skb; |
| struct l3_process *pc = NULL; |
| |
| switch (ic->arg) |
| { case NI1_CMD_INVOKE: |
| if (ic->parm.ni1_io.datalen < 0) return (-2); /* invalid parameter */ |
| |
| for (proc_len = 1, i = ic->parm.ni1_io.proc >> 8; i; i++) |
| i = i >> 8; /* add one byte */ |
| l = ic->parm.ni1_io.datalen + proc_len + 8; /* length excluding ie header */ |
| if (l > 255) |
| return (-2); /* too long */ |
| |
| if (!(id = new_invoke_id(st))) |
| return (0); /* first get a invoke id -> return if no available */ |
| |
| i = -1; |
| MsgHead(p, i, MT_FACILITY); /* build message head */ |
| *p++ = 0x1C; /* Facility IE */ |
| *p++ = l; /* length of ie */ |
| *p++ = 0x91; /* remote operations */ |
| *p++ = 0xA1; /* invoke */ |
| *p++ = l - 3; /* length of invoke */ |
| *p++ = 0x02; /* invoke id tag */ |
| *p++ = 0x01; /* length is 1 */ |
| *p++ = id; /* invoke id */ |
| *p++ = 0x02; /* operation */ |
| *p++ = proc_len; /* length of operation */ |
| |
| for (i = proc_len; i; i--) |
| *p++ = (ic->parm.ni1_io.proc >> (i - 1)) & 0xFF; |
| memcpy(p, ic->parm.ni1_io.data, ic->parm.ni1_io.datalen); /* copy data */ |
| l = (p - temp) + ic->parm.ni1_io.datalen; /* total length */ |
| |
| if (ic->parm.ni1_io.timeout > 0) { |
| pc = ni1_new_l3_process(st, -1); |
| if (!pc) { |
| free_invoke_id(st, id); |
| return (-2); |
| } |
| /* remember id */ |
| pc->prot.ni1.ll_id = ic->parm.ni1_io.ll_id; |
| /* and procedure */ |
| pc->prot.ni1.proc = ic->parm.ni1_io.proc; |
| } |
| |
| if (!(skb = l3_alloc_skb(l))) |
| { free_invoke_id(st, id); |
| if (pc) ni1_release_l3_process(pc); |
| return (-2); |
| } |
| memcpy(skb_put(skb, l), temp, l); |
| |
| if (pc) |
| { pc->prot.ni1.invoke_id = id; /* remember id */ |
| L3AddTimer(&pc->timer, ic->parm.ni1_io.timeout, CC_TNI1_IO | REQUEST); |
| } |
| |
| l3_msg(st, DL_DATA | REQUEST, skb); |
| ic->parm.ni1_io.hl_id = id; /* return id */ |
| return (0); |
| |
| case NI1_CMD_INVOKE_ABORT: |
| if ((pc = l3ni1_search_dummy_proc(st, ic->parm.ni1_io.hl_id))) |
| { L3DelTimer(&pc->timer); /* remove timer */ |
| ni1_release_l3_process(pc); |
| return (0); |
| } |
| else |
| { l3_debug(st, "l3ni1_cmd_global abort unknown id"); |
| return (-2); |
| } |
| break; |
| |
| default: |
| l3_debug(st, "l3ni1_cmd_global unknown cmd 0x%lx", ic->arg); |
| return (-1); |
| } /* switch ic-> arg */ |
| return (-1); |
| } /* l3ni1_cmd_global */ |
| |
| static void |
| l3ni1_io_timer(struct l3_process *pc) |
| { isdn_ctrl ic; |
| struct IsdnCardState *cs = pc->st->l1.hardware; |
| |
| L3DelTimer(&pc->timer); /* remove timer */ |
| |
| ic.driver = cs->myid; |
| ic.command = ISDN_STAT_PROT; |
| ic.arg = NI1_STAT_INVOKE_ERR; |
| ic.parm.ni1_io.hl_id = pc->prot.ni1.invoke_id; |
| ic.parm.ni1_io.ll_id = pc->prot.ni1.ll_id; |
| ic.parm.ni1_io.proc = pc->prot.ni1.proc; |
| ic.parm.ni1_io.timeout = -1; |
| ic.parm.ni1_io.datalen = 0; |
| ic.parm.ni1_io.data = NULL; |
| free_invoke_id(pc->st, pc->prot.ni1.invoke_id); |
| pc->prot.ni1.invoke_id = 0; /* reset id */ |
| |
| cs->iif.statcallb(&ic); |
| |
| ni1_release_l3_process(pc); |
| } /* l3ni1_io_timer */ |
| |
| static void |
| l3ni1_release_ind(struct l3_process *pc, u_char pr, void *arg) |
| { |
| u_char *p; |
| struct sk_buff *skb = arg; |
| int callState = 0; |
| p = skb->data; |
| |
| if ((p = findie(p, skb->len, IE_CALL_STATE, 0))) { |
| p++; |
| if (1 == *p++) |
| callState = *p; |
| } |
| if (callState == 0) { |
| /* ETS 300-104 7.6.1, 8.6.1, 10.6.1... and 16.1 |
| * set down layer 3 without sending any message |
| */ |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); |
| newl3state(pc, 0); |
| ni1_release_l3_process(pc); |
| } else { |
| pc->st->l3.l3l4(pc->st, CC_IGNORE | INDICATION, pc); |
| } |
| } |
| |
| static void |
| l3ni1_dummy(struct l3_process *pc, u_char pr, void *arg) |
| { |
| } |
| |
| static void |
| l3ni1_t302(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->para.loc = 0; |
| pc->para.cause = 28; /* invalid number */ |
| l3ni1_disconnect_req(pc, pr, NULL); |
| pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); |
| } |
| |
| static void |
| l3ni1_t303(struct l3_process *pc, u_char pr, void *arg) |
| { |
| if (pc->N303 > 0) { |
| pc->N303--; |
| L3DelTimer(&pc->timer); |
| l3ni1_setup_req(pc, pr, arg); |
| } else { |
| L3DelTimer(&pc->timer); |
| l3ni1_message_cause(pc, MT_RELEASE_COMPLETE, 102); |
| pc->st->l3.l3l4(pc->st, CC_NOSETUP_RSP, pc); |
| ni1_release_l3_process(pc); |
| } |
| } |
| |
| static void |
| l3ni1_t304(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->para.loc = 0; |
| pc->para.cause = 102; |
| l3ni1_disconnect_req(pc, pr, NULL); |
| pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); |
| |
| } |
| |
| static void |
| l3ni1_t305(struct l3_process *pc, u_char pr, void *arg) |
| { |
| u_char tmp[16]; |
| u_char *p = tmp; |
| int l; |
| struct sk_buff *skb; |
| u_char cause = 16; |
| |
| L3DelTimer(&pc->timer); |
| if (pc->para.cause != NO_CAUSE) |
| cause = pc->para.cause; |
| |
| MsgHead(p, pc->callref, MT_RELEASE); |
| |
| *p++ = IE_CAUSE; |
| *p++ = 0x2; |
| *p++ = 0x80; |
| *p++ = cause | 0x80; |
| |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| newl3state(pc, 19); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| L3AddTimer(&pc->timer, T308, CC_T308_1); |
| } |
| |
| static void |
| l3ni1_t310(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->para.loc = 0; |
| pc->para.cause = 102; |
| l3ni1_disconnect_req(pc, pr, NULL); |
| pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); |
| } |
| |
| static void |
| l3ni1_t313(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->para.loc = 0; |
| pc->para.cause = 102; |
| l3ni1_disconnect_req(pc, pr, NULL); |
| pc->st->l3.l3l4(pc->st, CC_CONNECT_ERR, pc); |
| } |
| |
| static void |
| l3ni1_t308_1(struct l3_process *pc, u_char pr, void *arg) |
| { |
| newl3state(pc, 19); |
| L3DelTimer(&pc->timer); |
| l3ni1_message(pc, MT_RELEASE); |
| L3AddTimer(&pc->timer, T308, CC_T308_2); |
| } |
| |
| static void |
| l3ni1_t308_2(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->st->l3.l3l4(pc->st, CC_RELEASE_ERR, pc); |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_t318(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->para.cause = 102; /* Timer expiry */ |
| pc->para.loc = 0; /* local */ |
| pc->st->l3.l3l4(pc->st, CC_RESUME_ERR, pc); |
| newl3state(pc, 19); |
| l3ni1_message(pc, MT_RELEASE); |
| L3AddTimer(&pc->timer, T308, CC_T308_1); |
| } |
| |
| static void |
| l3ni1_t319(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->para.cause = 102; /* Timer expiry */ |
| pc->para.loc = 0; /* local */ |
| pc->st->l3.l3l4(pc->st, CC_SUSPEND_ERR, pc); |
| newl3state(pc, 10); |
| } |
| |
| static void |
| l3ni1_restart(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_status(struct l3_process *pc, u_char pr, void *arg) |
| { |
| u_char *p; |
| struct sk_buff *skb = arg; |
| int ret; |
| u_char cause = 0, callState = 0; |
| |
| if ((ret = l3ni1_get_cause(pc, skb))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "STATUS get_cause ret(%d)", ret); |
| if (ret < 0) |
| cause = 96; |
| else if (ret > 0) |
| cause = 100; |
| } |
| if ((p = findie(skb->data, skb->len, IE_CALL_STATE, 0))) { |
| p++; |
| if (1 == *p++) { |
| callState = *p; |
| if (!ie_in_set(pc, *p, l3_valid_states)) |
| cause = 100; |
| } else |
| cause = 100; |
| } else |
| cause = 96; |
| if (!cause) { /* no error before */ |
| ret = check_infoelements(pc, skb, ie_STATUS); |
| if (ERR_IE_COMPREHENSION == ret) |
| cause = 96; |
| else if (ERR_IE_UNRECOGNIZED == ret) |
| cause = 99; |
| } |
| if (cause) { |
| u_char tmp; |
| |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "STATUS error(%d/%d)", ret, cause); |
| tmp = pc->para.cause; |
| pc->para.cause = cause; |
| l3ni1_status_send(pc, 0, NULL); |
| if (cause == 99) |
| pc->para.cause = tmp; |
| else |
| return; |
| } |
| cause = pc->para.cause; |
| if (((cause & 0x7f) == 111) && (callState == 0)) { |
| /* ETS 300-104 7.6.1, 8.6.1, 10.6.1... |
| * if received MT_STATUS with cause == 111 and call |
| * state == 0, then we must set down layer 3 |
| */ |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); |
| newl3state(pc, 0); |
| ni1_release_l3_process(pc); |
| } |
| } |
| |
| static void |
| l3ni1_facility(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| ret = check_infoelements(pc, skb, ie_FACILITY); |
| l3ni1_std_ie_err(pc, ret); |
| { |
| u_char *p; |
| if ((p = findie(skb->data, skb->len, IE_FACILITY, 0))) |
| l3ni1_parse_facility(pc->st, pc, pc->callref, p); |
| } |
| } |
| |
| static void |
| l3ni1_suspend_req(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb; |
| u_char tmp[32]; |
| u_char *p = tmp; |
| u_char i, l; |
| u_char *msg = pc->chan->setup.phone; |
| |
| MsgHead(p, pc->callref, MT_SUSPEND); |
| l = *msg++; |
| if (l && (l <= 10)) { /* Max length 10 octets */ |
| *p++ = IE_CALL_ID; |
| *p++ = l; |
| for (i = 0; i < l; i++) |
| *p++ = *msg++; |
| } else if (l) { |
| l3_debug(pc->st, "SUS wrong CALL_ID len %d", l); |
| return; |
| } |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| newl3state(pc, 15); |
| L3AddTimer(&pc->timer, T319, CC_T319); |
| } |
| |
| static void |
| l3ni1_suspend_ack(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| L3DelTimer(&pc->timer); |
| newl3state(pc, 0); |
| pc->para.cause = NO_CAUSE; |
| pc->st->l3.l3l4(pc->st, CC_SUSPEND | CONFIRM, pc); |
| /* We don't handle suspend_ack for IE errors now */ |
| if ((ret = check_infoelements(pc, skb, ie_SUSPEND_ACKNOWLEDGE))) |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "SUSPACK check ie(%d)", ret); |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_suspend_rej(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| if ((ret = l3ni1_get_cause(pc, skb))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "SUSP_REJ get_cause ret(%d)", ret); |
| if (ret < 0) |
| pc->para.cause = 96; |
| else |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| ret = check_infoelements(pc, skb, ie_SUSPEND_REJECT); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); |
| pc->st->l3.l3l4(pc->st, CC_SUSPEND_ERR, pc); |
| newl3state(pc, 10); |
| if (ret) /* STATUS for none mandatory IE errors after actions are taken */ |
| l3ni1_std_ie_err(pc, ret); |
| } |
| |
| static void |
| l3ni1_resume_req(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb; |
| u_char tmp[32]; |
| u_char *p = tmp; |
| u_char i, l; |
| u_char *msg = pc->para.setup.phone; |
| |
| MsgHead(p, pc->callref, MT_RESUME); |
| |
| l = *msg++; |
| if (l && (l <= 10)) { /* Max length 10 octets */ |
| *p++ = IE_CALL_ID; |
| *p++ = l; |
| for (i = 0; i < l; i++) |
| *p++ = *msg++; |
| } else if (l) { |
| l3_debug(pc->st, "RES wrong CALL_ID len %d", l); |
| return; |
| } |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| newl3state(pc, 17); |
| L3AddTimer(&pc->timer, T318, CC_T318); |
| } |
| |
| static void |
| l3ni1_resume_ack(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int id, ret; |
| |
| if ((id = l3ni1_get_channel_id(pc, skb)) > 0) { |
| if ((0 == id) || ((3 == id) && (0x10 == pc->para.moderate))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "resume ack with wrong chid %x", id); |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| pc->para.bchannel = id; |
| } else if (1 == pc->state) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "resume ack without chid (ret %d)", id); |
| pc->para.cause = 96; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| ret = check_infoelements(pc, skb, ie_RESUME_ACKNOWLEDGE); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); |
| pc->st->l3.l3l4(pc->st, CC_RESUME | CONFIRM, pc); |
| newl3state(pc, 10); |
| if (ret) /* STATUS for none mandatory IE errors after actions are taken */ |
| l3ni1_std_ie_err(pc, ret); |
| } |
| |
| static void |
| l3ni1_resume_rej(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| int ret; |
| |
| if ((ret = l3ni1_get_cause(pc, skb))) { |
| if (pc->debug & L3_DEB_WARN) |
| l3_debug(pc->st, "RES_REJ get_cause ret(%d)", ret); |
| if (ret < 0) |
| pc->para.cause = 96; |
| else |
| pc->para.cause = 100; |
| l3ni1_status_send(pc, pr, NULL); |
| return; |
| } |
| ret = check_infoelements(pc, skb, ie_RESUME_REJECT); |
| if (ERR_IE_COMPREHENSION == ret) { |
| l3ni1_std_ie_err(pc, ret); |
| return; |
| } |
| L3DelTimer(&pc->timer); |
| pc->st->l3.l3l4(pc->st, CC_RESUME_ERR, pc); |
| newl3state(pc, 0); |
| if (ret) /* STATUS for none mandatory IE errors after actions are taken */ |
| l3ni1_std_ie_err(pc, ret); |
| ni1_release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_global_restart(struct l3_process *pc, u_char pr, void *arg) |
| { |
| u_char tmp[32]; |
| u_char *p; |
| u_char ri, ch = 0, chan = 0; |
| int l; |
| struct sk_buff *skb = arg; |
| struct l3_process *up; |
| |
| newl3state(pc, 2); |
| L3DelTimer(&pc->timer); |
| p = skb->data; |
| if ((p = findie(p, skb->len, IE_RESTART_IND, 0))) { |
| ri = p[2]; |
| l3_debug(pc->st, "Restart %x", ri); |
| } else { |
| l3_debug(pc->st, "Restart without restart IE"); |
| ri = 0x86; |
| } |
| p = skb->data; |
| if ((p = findie(p, skb->len, IE_CHANNEL_ID, 0))) { |
| chan = p[2] & 3; |
| ch = p[2]; |
| if (pc->st->l3.debug) |
| l3_debug(pc->st, "Restart for channel %d", chan); |
| } |
| newl3state(pc, 2); |
| up = pc->st->l3.proc; |
| while (up) { |
| if ((ri & 7) == 7) |
| up->st->lli.l4l3(up->st, CC_RESTART | REQUEST, up); |
| else if (up->para.bchannel == chan) |
| up->st->lli.l4l3(up->st, CC_RESTART | REQUEST, up); |
| |
| up = up->next; |
| } |
| p = tmp; |
| MsgHead(p, pc->callref, MT_RESTART_ACKNOWLEDGE); |
| if (chan) { |
| *p++ = IE_CHANNEL_ID; |
| *p++ = 1; |
| *p++ = ch | 0x80; |
| } |
| *p++ = 0x79; /* RESTART Ind */ |
| *p++ = 1; |
| *p++ = ri; |
| l = p - tmp; |
| if (!(skb = l3_alloc_skb(l))) |
| return; |
| memcpy(skb_put(skb, l), tmp, l); |
| newl3state(pc, 0); |
| l3_msg(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void |
| l3ni1_dl_reset(struct l3_process *pc, u_char pr, void *arg) |
| { |
| pc->para.cause = 0x29; /* Temporary failure */ |
| pc->para.loc = 0; |
| l3ni1_disconnect_req(pc, pr, NULL); |
| pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); |
| } |
| |
| static void |
| l3ni1_dl_release(struct l3_process *pc, u_char pr, void *arg) |
| { |
| newl3state(pc, 0); |
| pc->para.cause = 0x1b; /* Destination out of order */ |
| pc->para.loc = 0; |
| pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); |
| release_l3_process(pc); |
| } |
| |
| static void |
| l3ni1_dl_reestablish(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| L3AddTimer(&pc->timer, T309, CC_T309); |
| l3_msg(pc->st, DL_ESTABLISH | REQUEST, NULL); |
| } |
| |
| static void |
| l3ni1_dl_reest_status(struct l3_process *pc, u_char pr, void *arg) |
| { |
| L3DelTimer(&pc->timer); |
| |
| pc->para.cause = 0x1F; /* normal, unspecified */ |
| l3ni1_status_send(pc, 0, NULL); |
| } |
| |
| static void l3ni1_SendSpid(struct l3_process *pc, u_char pr, struct sk_buff *skb, int iNewState) |
| { |
| u_char *p; |
| char *pSPID; |
| struct Channel *pChan = pc->st->lli.userdata; |
| int l; |
| |
| if (skb) |
| dev_kfree_skb(skb); |
| |
| if (!(pSPID = strchr(pChan->setup.eazmsn, ':'))) |
| { |
| printk(KERN_ERR "SPID not supplied in EAZMSN %s\n", pChan->setup.eazmsn); |
| newl3state(pc, 0); |
| pc->st->l3.l3l2(pc->st, DL_RELEASE | REQUEST, NULL); |
| return; |
| } |
| |
| l = strlen(++pSPID); |
| if (!(skb = l3_alloc_skb(5 + l))) |
| { |
| printk(KERN_ERR "HiSax can't get memory to send SPID\n"); |
| return; |
| } |
| |
| p = skb_put(skb, 5); |
| *p++ = PROTO_DIS_EURO; |
| *p++ = 0; |
| *p++ = MT_INFORMATION; |
| *p++ = IE_SPID; |
| *p++ = l; |
| |
| memcpy(skb_put(skb, l), pSPID, l); |
| |
| newl3state(pc, iNewState); |
| |
| L3DelTimer(&pc->timer); |
| L3AddTimer(&pc->timer, TSPID, CC_TSPID); |
| |
| pc->st->l3.l3l2(pc->st, DL_DATA | REQUEST, skb); |
| } |
| |
| static void l3ni1_spid_send(struct l3_process *pc, u_char pr, void *arg) |
| { |
| l3ni1_SendSpid(pc, pr, arg, 20); |
| } |
| |
| static void l3ni1_spid_epid(struct l3_process *pc, u_char pr, void *arg) |
| { |
| struct sk_buff *skb = arg; |
| |
| if (skb->data[1] == 0) |
| if (skb->data[3] == IE_ENDPOINT_ID) |
| { |
| L3DelTimer(&pc->timer); |
| newl3state(pc, 0); |
| l3_msg(pc->st, DL_ESTABLISH | CONFIRM, NULL); |
| } |
| dev_kfree_skb(skb); |
| } |
| |
| static void l3ni1_spid_tout(struct l3_process *pc, u_char pr, void *arg) |
| { |
| if (pc->state < 22) |
| l3ni1_SendSpid(pc, pr, arg, pc->state + 1); |
| else |
| { |
| L3DelTimer(&pc->timer); |
| dev_kfree_skb(arg); |
| |
| printk(KERN_ERR "SPID not accepted\n"); |
| newl3state(pc, 0); |
| pc->st->l3.l3l2(pc->st, DL_RELEASE | REQUEST, NULL); |
| } |
| } |
| |
| /* *INDENT-OFF* */ |
| static struct stateentry downstatelist[] = |
| { |
| {SBIT(0), |
| CC_SETUP | REQUEST, l3ni1_setup_req}, |
| {SBIT(0), |
| CC_RESUME | REQUEST, l3ni1_resume_req}, |
| {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(6) | SBIT(7) | SBIT(8) | SBIT(9) | SBIT(10) | SBIT(25), |
| CC_DISCONNECT | REQUEST, l3ni1_disconnect_req}, |
| {SBIT(12), |
| CC_RELEASE | REQUEST, l3ni1_release_req}, |
| {ALL_STATES, |
| CC_RESTART | REQUEST, l3ni1_restart}, |
| {SBIT(6) | SBIT(25), |
| CC_IGNORE | REQUEST, l3ni1_reset}, |
| {SBIT(6) | SBIT(25), |
| CC_REJECT | REQUEST, l3ni1_reject_req}, |
| {SBIT(6) | SBIT(25), |
| CC_PROCEED_SEND | REQUEST, l3ni1_proceed_req}, |
| {SBIT(6), |
| CC_MORE_INFO | REQUEST, l3ni1_setup_ack_req}, |
| {SBIT(25), |
| CC_MORE_INFO | REQUEST, l3ni1_dummy}, |
| {SBIT(6) | SBIT(9) | SBIT(25), |
| CC_ALERTING | REQUEST, l3ni1_alert_req}, |
| {SBIT(6) | SBIT(7) | SBIT(9) | SBIT(25), |
| CC_SETUP | RESPONSE, l3ni1_setup_rsp}, |
| {SBIT(10), |
| CC_SUSPEND | REQUEST, l3ni1_suspend_req}, |
| {SBIT(7) | SBIT(9) | SBIT(25), |
| CC_REDIR | REQUEST, l3ni1_redir_req}, |
| {SBIT(6), |
| CC_REDIR | REQUEST, l3ni1_redir_req_early}, |
| {SBIT(9) | SBIT(25), |
| CC_DISCONNECT | REQUEST, l3ni1_disconnect_req}, |
| {SBIT(25), |
| CC_T302, l3ni1_t302}, |
| {SBIT(1), |
| CC_T303, l3ni1_t303}, |
| {SBIT(2), |
| CC_T304, l3ni1_t304}, |
| {SBIT(3), |
| CC_T310, l3ni1_t310}, |
| {SBIT(8), |
| CC_T313, l3ni1_t313}, |
| {SBIT(11), |
| CC_T305, l3ni1_t305}, |
| {SBIT(15), |
| CC_T319, l3ni1_t319}, |
| {SBIT(17), |
| CC_T318, l3ni1_t318}, |
| {SBIT(19), |
| CC_T308_1, l3ni1_t308_1}, |
| {SBIT(19), |
| CC_T308_2, l3ni1_t308_2}, |
| {SBIT(10), |
| CC_T309, l3ni1_dl_release}, |
| { SBIT(20) | SBIT(21) | SBIT(22), |
| CC_TSPID, l3ni1_spid_tout }, |
| }; |
| |
| static struct stateentry datastatelist[] = |
| { |
| {ALL_STATES, |
| MT_STATUS_ENQUIRY, l3ni1_status_enq}, |
| {ALL_STATES, |
| MT_FACILITY, l3ni1_facility}, |
| {SBIT(19), |
| MT_STATUS, l3ni1_release_ind}, |
| {ALL_STATES, |
|