diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/isdn/hisax/l3_1tr6.c | 932 |
1 files changed, 932 insertions, 0 deletions
diff --git a/drivers/isdn/hisax/l3_1tr6.c b/drivers/isdn/hisax/l3_1tr6.c new file mode 100644 index 000000000..98f60d152 --- /dev/null +++ b/drivers/isdn/hisax/l3_1tr6.c @@ -0,0 +1,932 @@ +/* $Id: l3_1tr6.c,v 2.15.2.3 2004/01/13 14:31:25 keil Exp $ + * + * German 1TR6 D-channel protocol + * + * Author Karsten Keil + * Copyright by Karsten Keil <keil@isdn4linux.de> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + * For changes and modifications please read + * Documentation/isdn/HiSax.cert + * + */ + +#include "hisax.h" +#include "l3_1tr6.h" +#include "isdnl3.h" +#include <linux/ctype.h> + +extern char *HiSax_getrev(const char *revision); +static const char *l3_1tr6_revision = "$Revision: 2.15.2.3 $"; + +#define MsgHead(ptr, cref, mty, dis) \ + *ptr++ = dis; \ + *ptr++ = 0x1; \ + *ptr++ = cref ^ 0x80; \ + *ptr++ = mty + +static void +l3_1TR6_message(struct l3_process *pc, u_char mt, u_char pd) +{ + struct sk_buff *skb; + u_char *p; + + if (!(skb = l3_alloc_skb(4))) + return; + p = skb_put(skb, 4); + MsgHead(p, pc->callref, mt, pd); + l3_msg(pc->st, DL_DATA | REQUEST, skb); +} + +static void +l3_1tr6_release_req(struct l3_process *pc, u_char pr, void *arg) +{ + StopAllL3Timer(pc); + newl3state(pc, 19); + l3_1TR6_message(pc, MT_N1_REL, PROTO_DIS_N1); + L3AddTimer(&pc->timer, T308, CC_T308_1); +} + +static void +l3_1tr6_invalid(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + + dev_kfree_skb(skb); + l3_1tr6_release_req(pc, 0, NULL); +} + +static void +l3_1tr6_error(struct l3_process *pc, u_char *msg, struct sk_buff *skb) +{ + dev_kfree_skb(skb); + if (pc->st->l3.debug & L3_DEB_WARN) + l3_debug(pc->st, "%s", msg); + l3_1tr6_release_req(pc, 0, NULL); +} + +static void +l3_1tr6_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 *eaz; + u_char channel = 0; + int l; + + MsgHead(p, pc->callref, MT_N1_SETUP, PROTO_DIS_N1); + teln = pc->para.setup.phone; + pc->para.spv = 0; + if (!isdigit(*teln)) { + switch (0x5f & *teln) { + case 'S': + pc->para.spv = 1; + break; + case 'C': + channel = 0x08; + /* fall through */ + case 'P': + channel |= 0x80; + teln++; + if (*teln == '1') + channel |= 0x01; + else + channel |= 0x02; + break; + default: + if (pc->st->l3.debug & L3_DEB_WARN) + l3_debug(pc->st, "Wrong MSN Code"); + break; + } + teln++; + } + if (channel) { + *p++ = 0x18; /* channel indicator */ + *p++ = 1; + *p++ = channel; + } + if (pc->para.spv) { /* SPV ? */ + /* NSF SPV */ + *p++ = WE0_netSpecFac; + *p++ = 4; /* Laenge */ + *p++ = 0; + *p++ = FAC_SPV; /* SPV */ + *p++ = pc->para.setup.si1; /* 0 for all Services */ + *p++ = pc->para.setup.si2; /* 0 for all Services */ + *p++ = WE0_netSpecFac; + *p++ = 4; /* Laenge */ + *p++ = 0; + *p++ = FAC_Activate; /* aktiviere SPV (default) */ + *p++ = pc->para.setup.si1; /* 0 for all Services */ + *p++ = pc->para.setup.si2; /* 0 for all Services */ + } + eaz = pc->para.setup.eazmsn; + if (*eaz) { + *p++ = WE0_origAddr; + *p++ = strlen(eaz) + 1; + /* Classify as AnyPref. */ + *p++ = 0x81; /* Ext = '1'B, Type = '000'B, Plan = '0001'B. */ + while (*eaz) + *p++ = *eaz++ & 0x7f; + } + *p++ = WE0_destAddr; + *p++ = strlen(teln) + 1; + /* Classify as AnyPref. */ + *p++ = 0x81; /* Ext = '1'B, Type = '000'B, Plan = '0001'B. */ + while (*teln) + *p++ = *teln++ & 0x7f; + + *p++ = WE_Shift_F6; + /* Codesatz 6 fuer Service */ + *p++ = WE6_serviceInd; + *p++ = 2; /* len=2 info,info2 */ + *p++ = pc->para.setup.si1; + *p++ = pc->para.setup.si2; + + l = p - tmp; + if (!(skb = l3_alloc_skb(l))) + return; + skb_put_data(skb, tmp, l); + L3DelTimer(&pc->timer); + L3AddTimer(&pc->timer, T303, CC_T303); + newl3state(pc, 1); + l3_msg(pc->st, DL_DATA | REQUEST, skb); +} + +static void +l3_1tr6_setup(struct l3_process *pc, u_char pr, void *arg) +{ + u_char *p; + int bcfound = 0; + struct sk_buff *skb = arg; + + /* Channel Identification */ + p = findie(skb->data, skb->len, WE0_chanID, 0); + if (p) { + if (p[1] != 1) { + l3_1tr6_error(pc, "setup wrong chanID len", skb); + return; + } + if ((p[2] & 0xf4) != 0x80) { + l3_1tr6_error(pc, "setup wrong WE0_chanID", skb); + return; + } + if ((pc->para.bchannel = p[2] & 0x3)) + bcfound++; + } else { + l3_1tr6_error(pc, "missing setup chanID", skb); + return; + } + + p = skb->data; + if ((p = findie(p, skb->len, WE6_serviceInd, 6))) { + pc->para.setup.si1 = p[2]; + pc->para.setup.si2 = p[3]; + } else { + l3_1tr6_error(pc, "missing setup SI", skb); + return; + } + + p = skb->data; + if ((p = findie(p, skb->len, WE0_destAddr, 0))) + iecpy(pc->para.setup.eazmsn, p, 1); + else + pc->para.setup.eazmsn[0] = 0; + + p = skb->data; + if ((p = findie(p, skb->len, WE0_origAddr, 0))) { + iecpy(pc->para.setup.phone, p, 1); + } else + pc->para.setup.phone[0] = 0; + + p = skb->data; + pc->para.spv = 0; + if ((p = findie(p, skb->len, WE0_netSpecFac, 0))) { + if ((FAC_SPV == p[3]) || (FAC_Activate == p[3])) + pc->para.spv = 1; + } + dev_kfree_skb(skb); + + /* Signal all services, linklevel takes care of Service-Indicator */ + if (bcfound) { + if ((pc->para.setup.si1 != 7) && (pc->st->l3.debug & L3_DEB_WARN)) { + l3_debug(pc->st, "non-digital call: %s -> %s", + pc->para.setup.phone, + pc->para.setup.eazmsn); + } + newl3state(pc, 6); + pc->st->l3.l3l4(pc->st, CC_SETUP | INDICATION, pc); + } else + release_l3_process(pc); +} + +static void +l3_1tr6_setup_ack(struct l3_process *pc, u_char pr, void *arg) +{ + u_char *p; + struct sk_buff *skb = arg; + + L3DelTimer(&pc->timer); + p = skb->data; + newl3state(pc, 2); + if ((p = findie(p, skb->len, WE0_chanID, 0))) { + if (p[1] != 1) { + l3_1tr6_error(pc, "setup_ack wrong chanID len", skb); + return; + } + if ((p[2] & 0xf4) != 0x80) { + l3_1tr6_error(pc, "setup_ack wrong WE0_chanID", skb); + return; + } + pc->para.bchannel = p[2] & 0x3; + } else { + l3_1tr6_error(pc, "missing setup_ack WE0_chanID", skb); + return; + } + dev_kfree_skb(skb); + L3AddTimer(&pc->timer, T304, CC_T304); + pc->st->l3.l3l4(pc->st, CC_MORE_INFO | INDICATION, pc); +} + +static void +l3_1tr6_call_sent(struct l3_process *pc, u_char pr, void *arg) +{ + u_char *p; + struct sk_buff *skb = arg; + + L3DelTimer(&pc->timer); + p = skb->data; + if ((p = findie(p, skb->len, WE0_chanID, 0))) { + if (p[1] != 1) { + l3_1tr6_error(pc, "call sent wrong chanID len", skb); + return; + } + if ((p[2] & 0xf4) != 0x80) { + l3_1tr6_error(pc, "call sent wrong WE0_chanID", skb); + return; + } + if ((pc->state == 2) && (pc->para.bchannel != (p[2] & 0x3))) { + l3_1tr6_error(pc, "call sent wrong chanID value", skb); + return; + } + pc->para.bchannel = p[2] & 0x3; + } else { + l3_1tr6_error(pc, "missing call sent WE0_chanID", skb); + return; + } + dev_kfree_skb(skb); + L3AddTimer(&pc->timer, T310, CC_T310); + newl3state(pc, 3); + pc->st->l3.l3l4(pc->st, CC_PROCEEDING | INDICATION, pc); +} + +static void +l3_1tr6_alert(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + + dev_kfree_skb(skb); + L3DelTimer(&pc->timer); /* T304 */ + newl3state(pc, 4); + pc->st->l3.l3l4(pc->st, CC_ALERTING | INDICATION, pc); +} + +static void +l3_1tr6_info(struct l3_process *pc, u_char pr, void *arg) +{ + u_char *p; + int i, tmpcharge = 0; + char a_charge[8]; + struct sk_buff *skb = arg; + + p = skb->data; + if ((p = findie(p, skb->len, WE6_chargingInfo, 6))) { + iecpy(a_charge, p, 1); + for (i = 0; i < strlen(a_charge); i++) { + tmpcharge *= 10; + tmpcharge += a_charge[i] & 0xf; + } + if (tmpcharge > pc->para.chargeinfo) { + pc->para.chargeinfo = tmpcharge; + pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc); + } + if (pc->st->l3.debug & L3_DEB_CHARGE) { + l3_debug(pc->st, "charging info %d", + pc->para.chargeinfo); + } + } else if (pc->st->l3.debug & L3_DEB_CHARGE) + l3_debug(pc->st, "charging info not found"); + dev_kfree_skb(skb); + +} + +static void +l3_1tr6_info_s2(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + + dev_kfree_skb(skb); +} + +static void +l3_1tr6_connect(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + + L3DelTimer(&pc->timer); /* T310 */ + if (!findie(skb->data, skb->len, WE6_date, 6)) { + l3_1tr6_error(pc, "missing connect date", skb); + return; + } + newl3state(pc, 10); + dev_kfree_skb(skb); + pc->para.chargeinfo = 0; + pc->st->l3.l3l4(pc->st, CC_SETUP | CONFIRM, pc); +} + +static void +l3_1tr6_rel(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + u_char *p; + + p = skb->data; + if ((p = findie(p, skb->len, WE0_cause, 0))) { + if (p[1] > 0) { + pc->para.cause = p[2]; + if (p[1] > 1) + pc->para.loc = p[3]; + else + pc->para.loc = 0; + } else { + pc->para.cause = 0; + pc->para.loc = 0; + } + } else { + pc->para.cause = NO_CAUSE; + l3_1tr6_error(pc, "missing REL cause", skb); + return; + } + dev_kfree_skb(skb); + StopAllL3Timer(pc); + newl3state(pc, 0); + l3_1TR6_message(pc, MT_N1_REL_ACK, PROTO_DIS_N1); + pc->st->l3.l3l4(pc->st, CC_RELEASE | INDICATION, pc); + release_l3_process(pc); +} + +static void +l3_1tr6_rel_ack(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + + dev_kfree_skb(skb); + StopAllL3Timer(pc); + newl3state(pc, 0); + pc->para.cause = NO_CAUSE; + pc->st->l3.l3l4(pc->st, CC_RELEASE | CONFIRM, pc); + release_l3_process(pc); +} + +static void +l3_1tr6_disc(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + u_char *p; + int i, tmpcharge = 0; + char a_charge[8]; + + StopAllL3Timer(pc); + p = skb->data; + if ((p = findie(p, skb->len, WE6_chargingInfo, 6))) { + iecpy(a_charge, p, 1); + for (i = 0; i < strlen(a_charge); i++) { + tmpcharge *= 10; + tmpcharge += a_charge[i] & 0xf; + } + if (tmpcharge > pc->para.chargeinfo) { + pc->para.chargeinfo = tmpcharge; + pc->st->l3.l3l4(pc->st, CC_CHARGE | INDICATION, pc); + } + if (pc->st->l3.debug & L3_DEB_CHARGE) { + l3_debug(pc->st, "charging info %d", + pc->para.chargeinfo); + } + } else if (pc->st->l3.debug & L3_DEB_CHARGE) + l3_debug(pc->st, "charging info not found"); + + + p = skb->data; + if ((p = findie(p, skb->len, WE0_cause, 0))) { + if (p[1] > 0) { + pc->para.cause = p[2]; + if (p[1] > 1) + pc->para.loc = p[3]; + else + pc->para.loc = 0; + } else { + pc->para.cause = 0; + pc->para.loc = 0; + } + } else { + if (pc->st->l3.debug & L3_DEB_WARN) + l3_debug(pc->st, "cause not found"); + pc->para.cause = NO_CAUSE; + } + if (!findie(skb->data, skb->len, WE6_date, 6)) { + l3_1tr6_error(pc, "missing connack date", skb); + return; + } + dev_kfree_skb(skb); + newl3state(pc, 12); + pc->st->l3.l3l4(pc->st, CC_DISCONNECT | INDICATION, pc); +} + + +static void +l3_1tr6_connect_ack(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb = arg; + + if (!findie(skb->data, skb->len, WE6_date, 6)) { + l3_1tr6_error(pc, "missing connack date", skb); + return; + } + dev_kfree_skb(skb); + newl3state(pc, 10); + pc->para.chargeinfo = 0; + L3DelTimer(&pc->timer); + pc->st->l3.l3l4(pc->st, CC_SETUP_COMPL | INDICATION, pc); +} + +static void +l3_1tr6_alert_req(struct l3_process *pc, u_char pr, void *arg) +{ + newl3state(pc, 7); + l3_1TR6_message(pc, MT_N1_ALERT, PROTO_DIS_N1); +} + +static void +l3_1tr6_setup_rsp(struct l3_process *pc, u_char pr, void *arg) +{ + struct sk_buff *skb; + u_char tmp[24]; + u_char *p = tmp; + int l; + + MsgHead(p, pc->callref, MT_N1_CONN, PROTO_DIS_N1); + if (pc->para.spv) { /* SPV ? */ + /* NSF SPV */ + *p++ = WE0_netSpecFac; + *p++ = 4; /* Laenge */ + *p++ = 0; + *p++ = FAC_SPV; /* SPV */ + *p++ = pc->para.setup.si1; + *p++ = pc->para.setup.si2; + *p++ = WE0_netSpecFac; + *p++ = 4; /* Laenge */ + *p++ = 0; + *p++ = FAC_Activate; /* aktiviere SPV */ + *p++ = pc->para.setup.si1; + *p++ = pc->para.setup.si2; + } + newl3state(pc, 8); + l = p - tmp; + if (!(skb = l3_alloc_skb(l))) + return; + skb_put_data(skb, tmp, l); + l3_msg(pc->st, DL_DATA | REQUEST, skb); + L3DelTimer(&pc->timer); + L3AddTimer(&pc->timer, T313, CC_T313); +} + +static void +l3_1tr6_reset(struct l3_process *pc, u_char pr, void *arg) +{ + release_l3_process(pc); +} + +static void +l3_1tr6_disconnect_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 = 0x10; + u_char clen = 1; + + if (pc->para.cause > 0) + cause = pc->para.cause; + /* Map DSS1 causes */ + switch (cause & 0x7f) { + case 0x10: + clen = 0; + break; + case 0x11: + cause = CAUSE_UserBusy; + break; + case 0x15: + cause = CAUSE_CallRejected; + break; + } + StopAllL3Timer(pc); + MsgHead(p, pc->callref, MT_N1_DISC, PROTO_DIS_N1); + *p++ = WE0_cause; + *p++ = clen; /* Laenge */ + if (clen) + *p++ = cause | 0x80; + newl3state(pc, 11); + l = p - tmp; + if (!(skb = l3_alloc_skb(l))) + return; + skb_put_data(skb, tmp, l); + l3_msg(pc->st, DL_DATA | REQUEST, skb); + L3AddTimer(&pc->timer, T305, CC_T305); +} + +static void +l3_1tr6_t303(struct l3_process *pc, u_char pr, void *arg) +{ + if (pc->N303 > 0) { + pc->N303--; + L3DelTimer(&pc->timer); + l3_1tr6_setup_req(pc, pr, arg); + } else { + L3DelTimer(&pc->timer); + pc->para.cause = 0; + l3_1tr6_disconnect_req(pc, 0, NULL); + } +} + +static void +l3_1tr6_t304(struct l3_process *pc, u_char pr, void *arg) +{ + L3DelTimer(&pc->timer); + pc->para.cause = 0xE6; + l3_1tr6_disconnect_req(pc, pr, NULL); + pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); +} + +static void +l3_1tr6_t305(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 = 0x90; + u_char clen = 1; + + L3DelTimer(&pc->timer); + if (pc->para.cause != NO_CAUSE) + cause = pc->para.cause; + /* Map DSS1 causes */ + switch (cause & 0x7f) { + case 0x10: + clen = 0; + break; + case 0x15: + cause = CAUSE_CallRejected; + break; + } + MsgHead(p, pc->callref, MT_N1_REL, PROTO_DIS_N1); + *p++ = WE0_cause; + *p++ = clen; /* Laenge */ + if (clen) + *p++ = cause; + newl3state(pc, 19); + l = p - tmp; + if (!(skb = l3_alloc_skb(l))) + return; + skb_put_data(skb, tmp, l); + l3_msg(pc->st, DL_DATA | REQUEST, skb); + L3AddTimer(&pc->timer, T308, CC_T308_1); +} + +static void +l3_1tr6_t310(struct l3_process *pc, u_char pr, void *arg) +{ + L3DelTimer(&pc->timer); + pc->para.cause = 0xE6; + l3_1tr6_disconnect_req(pc, pr, NULL); + pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); +} + +static void +l3_1tr6_t313(struct l3_process *pc, u_char pr, void *arg) +{ + L3DelTimer(&pc->timer); + pc->para.cause = 0xE6; + l3_1tr6_disconnect_req(pc, pr, NULL); + pc->st->l3.l3l4(pc->st, CC_CONNECT_ERR, pc); +} + +static void +l3_1tr6_t308_1(struct l3_process *pc, u_char pr, void *arg) +{ + L3DelTimer(&pc->timer); + l3_1TR6_message(pc, MT_N1_REL, PROTO_DIS_N1); + L3AddTimer(&pc->timer, T308, CC_T308_2); + newl3state(pc, 19); +} + +static void +l3_1tr6_t308_2(struct l3_process *pc, u_char pr, void *arg) +{ + L3DelTimer(&pc->timer); + pc->st->l3.l3l4(pc->st, CC_RELEASE_ERR, pc); + release_l3_process(pc); +} + +static void +l3_1tr6_dl_reset(struct l3_process *pc, u_char pr, void *arg) +{ + pc->para.cause = CAUSE_LocalProcErr; + l3_1tr6_disconnect_req(pc, pr, NULL); + pc->st->l3.l3l4(pc->st, CC_SETUP_ERR, pc); +} + +static void +l3_1tr6_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); +} + +/* *INDENT-OFF* */ +static struct stateentry downstl[] = +{ + {SBIT(0), + CC_SETUP | REQUEST, l3_1tr6_setup_req}, + {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(6) | SBIT(7) | SBIT(8) | + SBIT(10), + CC_DISCONNECT | REQUEST, l3_1tr6_disconnect_req}, + {SBIT(12), + CC_RELEASE | REQUEST, l3_1tr6_release_req}, + {SBIT(6), + CC_IGNORE | REQUEST, l3_1tr6_reset}, + {SBIT(6), + CC_REJECT | REQUEST, l3_1tr6_disconnect_req}, + {SBIT(6), + CC_ALERTING | REQUEST, l3_1tr6_alert_req}, + {SBIT(6) | SBIT(7), + CC_SETUP | RESPONSE, l3_1tr6_setup_rsp}, + {SBIT(1), + CC_T303, l3_1tr6_t303}, + {SBIT(2), + CC_T304, l3_1tr6_t304}, + {SBIT(3), + CC_T310, l3_1tr6_t310}, + {SBIT(8), + CC_T313, l3_1tr6_t313}, + {SBIT(11), + CC_T305, l3_1tr6_t305}, + {SBIT(19), + CC_T308_1, l3_1tr6_t308_1}, + {SBIT(19), + CC_T308_2, l3_1tr6_t308_2}, +}; + +static struct stateentry datastln1[] = +{ + {SBIT(0), + MT_N1_INVALID, l3_1tr6_invalid}, + {SBIT(0), + MT_N1_SETUP, l3_1tr6_setup}, + {SBIT(1), + MT_N1_SETUP_ACK, l3_1tr6_setup_ack}, + {SBIT(1) | SBIT(2), + MT_N1_CALL_SENT, l3_1tr6_call_sent}, + {SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | SBIT(10), + MT_N1_DISC, l3_1tr6_disc}, + {SBIT(2) | SBIT(3) | SBIT(4), + MT_N1_ALERT, l3_1tr6_alert}, + {SBIT(2) | SBIT(3) | SBIT(4), + MT_N1_CONN, l3_1tr6_connect}, + {SBIT(2), + MT_N1_INFO, l3_1tr6_info_s2}, + {SBIT(8), + MT_N1_CONN_ACK, l3_1tr6_connect_ack}, + {SBIT(10), + MT_N1_INFO, l3_1tr6_info}, + {SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | + SBIT(10) | SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17), + MT_N1_REL, l3_1tr6_rel}, + {SBIT(19), + MT_N1_REL, l3_1tr6_rel_ack}, + {SBIT(0) | SBIT(1) | SBIT(2) | SBIT(3) | SBIT(4) | SBIT(7) | SBIT(8) | + SBIT(10) | SBIT(11) | SBIT(12) | SBIT(15) | SBIT(17), + MT_N1_REL_ACK, l3_1tr6_invalid}, + {SBIT(19), + MT_N1_REL_ACK, l3_1tr6_rel_ack} +}; + +static struct stateentry manstatelist[] = +{ + {SBIT(2), + DL_ESTABLISH | INDICATION, l3_1tr6_dl_reset}, + {ALL_STATES, + DL_RELEASE | INDICATION, l3_1tr6_dl_release}, +}; + +/* *INDENT-ON* */ + +static void +up1tr6(struct PStack *st, int pr, void *arg) +{ + int i, mt, cr; + struct l3_process *proc; + struct sk_buff *skb = arg; + + switch (pr) { + case (DL_DATA | INDICATION): + case (DL_UNIT_DATA | INDICATION): + break; + case (DL_ESTABLISH | CONFIRM): + case (DL_ESTABLISH | INDICATION): + case (DL_RELEASE | INDICATION): + case (DL_RELEASE | CONFIRM): + l3_msg(st, pr, arg); + return; + break; + } + if (skb->len < 4) { + if (st->l3.debug & L3_DEB_PROTERR) { + l3_debug(st, "up1tr6 len only %d", skb->len); + } + dev_kfree_skb(skb); + return; + } + if ((skb->data[0] & 0xfe) != PROTO_DIS_N0) { + if (st->l3.debug & L3_DEB_PROTERR) { + l3_debug(st, "up1tr6%sunexpected discriminator %x message len %d", + (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", + skb->data[0], skb->len); + } + dev_kfree_skb(skb); + return; + } + if (skb->data[1] != 1) { + if (st->l3.debug & L3_DEB_PROTERR) { + l3_debug(st, "up1tr6 CR len not 1"); + } + dev_kfree_skb(skb); + return; + } + cr = skb->data[2]; + mt = skb->data[3]; + if (skb->data[0] == PROTO_DIS_N0) { + dev_kfree_skb(skb); + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "up1tr6%s N0 mt %x unhandled", + (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", mt); + } + } else if (skb->data[0] == PROTO_DIS_N1) { + if (!(proc = getl3proc(st, cr))) { + if (mt == MT_N1_SETUP) { + if (cr < 128) { + if (!(proc = new_l3_process(st, cr))) { + if (st->l3.debug & L3_DEB_PROTERR) { + l3_debug(st, "up1tr6 no roc mem"); + } + dev_kfree_skb(skb); + return; + } + } else { + dev_kfree_skb(skb); + return; + } + } else if ((mt == MT_N1_REL) || (mt == MT_N1_REL_ACK) || + (mt == MT_N1_CANC_ACK) || (mt == MT_N1_CANC_REJ) || + (mt == MT_N1_REG_ACK) || (mt == MT_N1_REG_REJ) || + (mt == MT_N1_SUSP_ACK) || (mt == MT_N1_RES_REJ) || + (mt == MT_N1_INFO)) { + dev_kfree_skb(skb); + return; + } else { + if (!(proc = new_l3_process(st, cr))) { + if (st->l3.debug & L3_DEB_PROTERR) { + l3_debug(st, "up1tr6 no roc mem"); + } + dev_kfree_skb(skb); + return; + } + mt = MT_N1_INVALID; + } + } + for (i = 0; i < ARRAY_SIZE(datastln1); i++) + if ((mt == datastln1[i].primitive) && + ((1 << proc->state) & datastln1[i].state)) + break; + if (i == ARRAY_SIZE(datastln1)) { + dev_kfree_skb(skb); + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "up1tr6%sstate %d mt %x unhandled", + (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", + proc->state, mt); + } + return; + } else { + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "up1tr6%sstate %d mt %x", + (pr == (DL_DATA | INDICATION)) ? " " : "(broadcast) ", + proc->state, mt); + } + datastln1[i].rout(proc, pr, skb); + } + } +} + +static void +down1tr6(struct PStack *st, int pr, void *arg) +{ + int i, cr; + struct l3_process *proc; + struct Channel *chan; + + if ((DL_ESTABLISH | REQUEST) == pr) { + l3_msg(st, pr, NULL); + return; + } else if ((CC_SETUP | REQUEST) == pr) { + chan = arg; + cr = newcallref(); + cr |= 0x80; + if (!(proc = new_l3_process(st, cr))) { + return; + } else { + proc->chan = chan; + chan->proc = proc; + memcpy(&proc->para.setup, &chan->setup, sizeof(setup_parm)); + proc->callref = cr; + } + } else { + proc = arg; + } + + for (i = 0; i < ARRAY_SIZE(downstl); i++) + if ((pr == downstl[i].primitive) && + ((1 << proc->state) & downstl[i].state)) + break; + if (i == ARRAY_SIZE(downstl)) { + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "down1tr6 state %d prim %d unhandled", + proc->state, pr); + } + } else { + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "down1tr6 state %d prim %d", + proc->state, pr); + } + downstl[i].rout(proc, pr, arg); + } +} + +static void +man1tr6(struct PStack *st, int pr, void *arg) +{ + int i; + struct l3_process *proc = arg; + + if (!proc) { + printk(KERN_ERR "HiSax man1tr6 without proc pr=%04x\n", pr); + return; + } + for (i = 0; i < ARRAY_SIZE(manstatelist); i++) + if ((pr == manstatelist[i].primitive) && + ((1 << proc->state) & manstatelist[i].state)) + break; + if (i == ARRAY_SIZE(manstatelist)) { + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "cr %d man1tr6 state %d prim %d unhandled", + proc->callref & 0x7f, proc->state, pr); + } + } else { + if (st->l3.debug & L3_DEB_STATE) { + l3_debug(st, "cr %d man1tr6 state %d prim %d", + proc->callref & 0x7f, proc->state, pr); + } + manstatelist[i].rout(proc, pr, arg); + } +} + +void +setstack_1tr6(struct PStack *st) +{ + char tmp[64]; + + st->lli.l4l3 = down1tr6; + st->l2.l2l3 = up1tr6; + st->l3.l3ml3 = man1tr6; + st->l3.N303 = 0; + + strcpy(tmp, l3_1tr6_revision); + printk(KERN_INFO "HiSax: 1TR6 Rev. %s\n", HiSax_getrev(tmp)); +} |