FreeCalypso > hg > fc-magnetite
view src/g23m-gprs/sndcp/sndcp_cias.c @ 640:16eb1b9640dc
target gtm900 renamed to gtm900mgc2
This change reflects the fact that the build target in question supports
MGC2GSMT hardware only, and will NOT work on other hw that confusing bears
the same end user name of GTM900, neither the LoCosto-based GTM900-C
nor the Calypso-based MG01GSMT that has a different and incompatible RFFE.
If we ever get our hands on a piece of MG01GSMT hw and add support for it,
that other target will be named gtm900mg01.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 31 Jan 2020 00:46:07 +0000 |
| parents | 219afcfc6250 |
| children |
line wrap: on
line source
/* +----------------------------------------------------------------------------- | Project : GPRS (8441) | Modul : sndcp_cias.c +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. | | These files implement Van Jacobson Compression algorithm which is taken from | University of California Berkley's Implementation. | | | "Copyright (c)1989 Regents of the University of California. | All rights reserved.Redistribution and use in source and binary forms are | permitted, provided that the above copyright notice and this paragraph are | duplicated in all such forms and that any documentation advertising materials, | and other materials related to such distributionand use acknowledge that the | software was developed by the University of California, Berkeley. | The name of the University may not be used to endorse or promote products | derived from this software without specific prior written permission. | THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, | INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND | FITNESS FOR A PARTICULAR PURPOSE" +----------------------------------------------------------------------------- | Purpose : This modul is part of the entity SNDCP and implements all | functions to handles the incoming process internal signals as | described in the SDL-documentation (CIA-statemachine) +----------------------------------------------------------------------------- */ #define ENTITY_SNDCP /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ #include "macdef.h" #include "gsm.h" /* to get a lot of macros */ #include "prim.h" /* to get the definitions of used SAP and directions */ #include "dti.h" #include "sndcp.h" /* to get the global entity definitions */ #include "sndcp_f.h" /* to get the functions to access the global arrays*/ #include <string.h> /* to get memcpy() */ #include "sndcp_cias.h" /* to get the signals to service cia */ #include "sndcp_ciap.h" /* to get primitives to service cia */ #include "sndcp_ciaf.h" /* to get primitives to service cia */ #include "sndcp_sdf.h" /* to get sd functions */ #include "sndcp_sdaf.h" /* to get sda functions */ #include "sndcp_sds.h" /* to get sd signals */ #ifdef TI_PS_FF_V42BIS #include "v42b_type.h" #include "v42b_dico.h" #include "v42b_enc.h" #include "v42b_dec.h" #include "v42b_debug.h" #endif /* TI_PS_FF_V42BIS */ /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /* * Update connection state cs & send uncompressed packet ('uncompressed' * means a regular ip/tcp packet but with the 'conversation id' we hope * to use on future compressed packets in the protocol field). */ #define UNCOMPRESSED {\ memcpy(cs->cs_hdr, (UBYTE*)cbuf->c_hdr, tip_hlen);\ ip->ip_p = cs->cs_id;\ sndcp_data->cia.comp.last_xmit = cs->cs_id;\ } /* +------------------------------------------------------------------------------ | Function : cia_vj_comp +------------------------------------------------------------------------------ | Description : compresses the TCP/IP header of the given packet | (Van Jacobson algorithm). A part of this routine has been taken | from implementation of University of California, Berkeley. | | Parameters : com_buf - received packet, packet length, packet type | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC LOCAL UBYTE cia_vj_comp(struct comp_buf *cbuf) { struct cstate *cs = sndcp_data->cia.comp.last_cs->cs_next; T_SNDCP_TCP_HEADER *oth, *oth_tmp; /* last TCP header */ T_SNDCP_TCP_HEADER *th; /* current TCP header */ T_SNDCP_IP_HEADER *ip; /* current IP header */ USHORT ip_hlen, tip_hlen; /* IP hdr len., TCP/IP hdr len*/ USHORT tmp1, tmp2; /* general purpose tempories */ ULONG changes = 0; /* change mask */ UBYTE new_seq[16]; /* changes from last to current*/ UBYTE *cp = new_seq; UBYTE th_off, oth_off; BOOL found = FALSE; USHORT th_sum; ULONG seq, o_seq; ip = (T_SNDCP_IP_HEADER *)cbuf->c_hdr; ip_hlen = ip->ip_vhl & HL_MASK; /* IP header length in integers */ th = (T_SNDCP_TCP_HEADER *)&((ULONG *)cbuf->c_hdr)[ip_hlen]; th_off = th->th_off >> 4; TRACE_FUNCTION( "cia_vj_comp" ); /* * Bail if this is an IP fragment or if the TCP packet isn't * `compressible' (i.e., ACK isn't set or some other control bit is * set). (We assume that the caller has already made sure the * packet is IP proto TCP). */ if (ip->ip_off & 0xff3f) { TRACE_EVENT("INFO COMP: return TYPE_IP, packet is an IP fragment"); return (TYPE_IP); } if ((th->th_flags & (TH_SYN|TH_FIN|TH_RST|TH_ACK)) != TH_ACK) { TRACE_EVENT("INFO COMP: return TYPE_IP, TH_ACK is not set"); return (TYPE_IP); } /* * Packet is compressible -- we're going to send either a * COMPRESSED_TCP or UNCOMPRESSED_TCP packet. Either way we need * to locate (or create) the connection state. Special case the * most recently used connection since it's most likely to be used * again & we don't have to do any reordering if it's used. */ oth_tmp = (T_SNDCP_TCP_HEADER *) &((ULONG *)cs->cs_hdr)[cs->cs_ip->ip_vhl & HL_MASK]; if ((ip->ip_src != cs->cs_ip->ip_src) || (ip->ip_dst != cs->cs_ip->ip_dst) || (*(ULONG *)th != *(ULONG *)oth_tmp)){ /* * Wasn't the first -- search for it. * * States are kept in a circularly linked list with * last_cs pointing to the end of the list. The * list is kept in lru order by moving a state to the * head of the list whenever it is referenced. Since * the list is short and, empirically, the connection * we want is almost always near the front, we locate * states via linear search. If we don't find a state * for the datagram, the oldest state is (re-)used. */ struct cstate *lcs; struct cstate *lastcs = sndcp_data->cia.comp.last_cs; do { lcs = cs; cs = cs->cs_next; oth_tmp = (T_SNDCP_TCP_HEADER *) &((ULONG *)cs->cs_hdr)[cs->cs_ip->ip_vhl & HL_MASK]; if ((ip->ip_src == cs->cs_ip->ip_src) && (ip->ip_dst == cs->cs_ip->ip_dst) && (*(ULONG *)th == *(ULONG *)oth_tmp)){ found = TRUE; break; } } while (cs != lastcs); if(found) { /* * Found it -- move to the front on the connection list. */ if (cs == lastcs) sndcp_data->cia.comp.last_cs = lcs; else { lcs->cs_next = cs->cs_next; cs->cs_next = lastcs->cs_next; lastcs->cs_next = cs; } } else { /* * Didn't find it -- re-use oldest cstate. Send an * uncompressed packet that tells the other side what * connection number we're using for this conversation. * Note that since the state list is circular, the oldest * state points to the newest and we only need to set * last_cs to update the lru linkage. */ sndcp_data->cia.comp.last_cs = lcs; tip_hlen = (ip_hlen+th_off)<<2; UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); }/*if din't find*/ } /* * Make sure that only what we expect to change changed. The first * line of the `if' checks the IP protocol version, header length & * type of service. The 2nd line checks the "Don't fragment" bit. * The 3rd line checks the time-to-live and protocol (the protocol * check is unnecessary but costless). The 4th line checks the TCP * header length. The 5th line checks IP options, if any. The 6th * line checks TCP options, if any. If any of these things are * different between the previous & current datagram, we send the * current datagram `uncompressed'. */ oth = (T_SNDCP_TCP_HEADER *)&((ULONG *)cs->cs_ip)[ip_hlen]; oth_off = oth->th_off >> 4; tip_hlen = (ip_hlen+th_off)<<2; if (((USHORT *)ip)[0] != ((USHORT *)cs->cs_ip)[0] || ((USHORT *)ip)[3] != ((USHORT *)cs->cs_ip)[3] || ((USHORT *)ip)[4] != ((USHORT *)cs->cs_ip)[4] || (th_off != oth_off) || ((ip_hlen > 5) && (memcmp(ip + 1, cs->cs_ip + 1, (ip_hlen - 5) << 2))) || ((th_off > 5) && (memcmp(th + 1, oth + 1, (th_off - 5) << 2)))) { UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); } /* * Figure out which of the changing fields changed. The * receiver expects changes in the order: urgent, window, * ack, seq (the order minimizes the number of temporaries * needed in this section of code). */ if (th->th_flags & TH_URG) { tmp1 = sndcp_swap2(th->th_urp); if (tmp1 >= 256 || tmp1 == 0) { *cp++ = 0; cp[1] = (UBYTE)tmp1; cp[0] = (tmp1 & 0xff00) >> 8; cp += 2; } else { *cp++ = (UBYTE)tmp1; } changes |= NEW_U; } else if (th->th_urp != oth->th_urp){ /* argh! URG not set but urp changed -- a sensible * implementation should never do this but RFC793 * doesn't prohibit the change so we have to deal * with it. */ UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); } if ((tmp1 = sndcp_swap2(th->th_win) - sndcp_swap2(oth->th_win)) != 0) { if (tmp1 >= 256) { *cp++ = 0; cp[1] = (UBYTE)tmp1; cp[0] = (tmp1 & 0xff00) >> 8; cp += 2; } else { *cp++ = (UBYTE)tmp1; } changes |= NEW_W; } if ((tmp2 = (USHORT)(sndcp_swap4(th->th_ack)-sndcp_swap4(oth->th_ack)))!=0){ if (tmp2 > MAX_CHANGE){ UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); } if (tmp2 >= 256) { *cp++ = 0; cp[1] = (UBYTE)tmp2; cp[0] = (tmp2 & 0xff00) >> 8; cp += 2; } else { *cp++ = (UBYTE)tmp2; } changes |= NEW_A; } seq = sndcp_swap4(th->th_seq); o_seq = sndcp_swap4(oth->th_seq); if(seq < o_seq) { TRACE_EVENT("WARNING COMP: seq < o_seq, return UNCOMPRESSED_TCP "); UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); } else if((tmp1 = (USHORT)(seq - o_seq)) != 0) { if (tmp1 > MAX_CHANGE){ UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); } if (tmp1 >= 256) { *cp++ = 0; cp[1] = (UBYTE)tmp1; cp[0] = (tmp1 & 0xff00) >> 8; cp += 2; } else { *cp++ = (UBYTE)tmp1; } changes |= NEW_S; } /* look for special case encodings. */ switch (changes) { case 0: /* * Nothing changed. If this packet contains data and the * last one didn't, this is probably a data packet following * an ack (normal on an interactive connection) and we send * it compressed. Otherwise it's probably a retransmit, * retransmitted ack or window probe. Send it uncompressed * in case the other side missed the compressed version. */ if ((ip->ip_len != cs->cs_ip->ip_len) && (sndcp_swap2(cs->cs_ip->ip_len) == tip_hlen)) break; /* (fall through) */ case SPECIAL_I: case SPECIAL_D: /* * actual changes match one of our special case encodings -- * send packet uncompressed. */ UNCOMPRESSED; return (TYPE_UNCOMPRESSED_TCP); case NEW_S|NEW_A: if ((tmp1 == tmp2) && (tmp1 == sndcp_swap2(cs->cs_ip->ip_len) - tip_hlen)) { /* special case for echoed terminal traffic */ changes = SPECIAL_I; cp = new_seq; } break; case NEW_S: if (tmp1 == sndcp_swap2(cs->cs_ip->ip_len) - tip_hlen) { /* special case for data xfer */ changes = SPECIAL_D; cp = new_seq; } break; } tmp1 = sndcp_swap2(ip->ip_id) - sndcp_swap2(cs->cs_ip->ip_id); if (tmp1 != 1) { if ((tmp1 >= 256) || (tmp1 == 0)) { *cp++ = 0; cp[1] = (UBYTE)tmp1; cp[0] = (tmp1 & 0xff00) >> 8; cp += 2; } else { *cp++ = (UBYTE)tmp1; } changes |= NEW_I; } if (th->th_flags & TH_PUSH) changes |= TCP_PUSH_BIT; /* * Grab the cksum before we overwrite it below. Then update our * state with this packet's header. */ th_sum = sndcp_swap2(th->th_sum); memcpy(cs->cs_ip, ip, tip_hlen); /* * We want to use the original packet as our compressed packet. * (cp - new_seq) is the number of bytes we need for compressed * sequence numbers. In addition we need one byte for the change * mask, one for the connection id and two for the tcp checksum. * So, (cp - new_seq) + 4 bytes of header are needed. hlen is how * many bytes of the original packet to toss so subtract the two to * get the new packet size. */ tmp1 = cp - new_seq; cp = (UBYTE *)ip; /* * we always send a "new" connection id so the receiver state * stays synchronized. */ sndcp_data->cia.comp.last_xmit = cs->cs_id; tip_hlen -= tmp1 + 4; cp += tip_hlen; *cp++ = (UBYTE)(changes | NEW_C); *cp++ = cs->cs_id; cbuf->pack_len -= tip_hlen; cbuf->hdr_len -= tip_hlen; cbuf->c_hdr += tip_hlen; *cp++ = th_sum >> 8; *cp++ = (UBYTE)(th_sum & 0x00ff); memcpy(cp, new_seq, tmp1); return (TYPE_COMPRESSED_TCP); } #endif /* CF_FAST_EXEC */ /* +------------------------------------------------------------------------------ | Function : cia_header_comp +------------------------------------------------------------------------------ | Description : compresses the TCP/IP header of the given packet | (Van Jacobson algorithm) | | Parameters : packet as desc_list, packet_type. | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC #ifdef _SNDCP_DTI_2_ GLOBAL void cia_header_comp (T_desc_list2* dest_desc_list, T_desc_list2* src_desc_list, UBYTE* packet_type) #else /*_SNDCP_DTI_2_*/ GLOBAL void cia_header_comp (T_desc_list* dest_desc_list, T_desc_list* src_desc_list, UBYTE* packet_type) #endif /*_SNDCP_DTI_2_*/ { #ifdef _SNDCP_DTI_2_ T_desc2* src_desc = (T_desc2*)src_desc_list->first; T_desc2* new_desc; U8 *src_desc_buff = &src_desc->buffer[src_desc->offset]; #else /*_SNDCP_DTI_2_*/ T_desc* src_desc = (T_desc*)src_desc_list->first; T_desc* new_desc; U8 *src_desc_buff = &src_desc->buffer[0]; #endif /*_SNDCP_DTI_2_*/ /* * A struct mbuf is used in the call cia_vj_comp because that routine * needs to modify both the start address and length if the incoming * packet is compressed */ struct comp_buf cbuf; T_SNDCP_IP_HEADER *ip; T_SNDCP_TCP_HEADER *tcp; USHORT hdr_len; USHORT offset; TRACE_FUNCTION( "cia_header_comp" ); if ((src_desc == NULL)) { TRACE_EVENT("ERROR: Descriptor Pointer is a NULLPTR"); *packet_type = TYPE_ERROR; return; } /* * Verify protocol type and header length */ ip = (T_SNDCP_IP_HEADER *)&src_desc_buff[0]; if((ip->ip_p == PROT_TCPIP)) { hdr_len = (ip->ip_vhl & HL_MASK) << 2; tcp = (T_SNDCP_TCP_HEADER *)&src_desc_buff[hdr_len]; hdr_len += (tcp->th_off >> 4) << 2; if( (src_desc->len >= hdr_len) && (hdr_len >=40) ){ /* * initialize comp_buf */ cbuf.hdr_len = hdr_len; /* header len. passed to compr. routine*/ cbuf.pack_len = src_desc->len; /* descriptor length */ cbuf.p_type = TYPE_IP; /* set default packet type */ /* use temporary buffer to store TCP/IP header */ cbuf.c_hdr = (ULONG)&sndcp_data->cia.comp.tcpip_hdr[0]; memcpy((UBYTE*)cbuf.c_hdr, &src_desc_buff[0], cbuf.hdr_len); /* * Call VJ header compression routine */ *packet_type = cia_vj_comp(&cbuf); } else *packet_type = TYPE_IP; }/* if TCP_IP_PROTOKOL */ else{ *packet_type = TYPE_IP; if(src_desc->len <40) TRACE_EVENT("INFO COMP: Descriptor length < 40"); } switch(*packet_type) { /* * IP packet */ case TYPE_IP: /* * if acknowledged mode */ if(src_desc_list != dest_desc_list) { dest_desc_list->first = src_desc_list->first; dest_desc_list->list_len = src_desc_list->list_len; } TRACE_EVENT("INFO COMP: Header Type TYPE_IP"); break; /* * Uncompressed TCP/IP packet */ case TYPE_UNCOMPRESSED_TCP: /* * if acknowledged mode */ if(src_desc_list != dest_desc_list) { #ifdef _SNDCP_DTI_2_ MALLOC(new_desc, (USHORT)(sizeof(T_desc2)-1+src_desc->len)); #else MALLOC(new_desc, (USHORT)(sizeof(T_desc)-1+src_desc->len)); #endif /* * Copy data packet to destination descriptor */ memcpy(new_desc->buffer, src_desc_buff, src_desc->len); /* * store connection id */ new_desc->buffer[PR_TYPE_POS] = ((UBYTE*)cbuf.c_hdr)[PR_TYPE_POS] ;/*lint !e644 !e415 !e416 creation and access of out-of-bounds pointer*/ /* * Build destination descriptor list */ new_desc->next = src_desc->next; new_desc->len = src_desc->len; #ifdef _SNDCP_DTI_2_ new_desc->offset = src_desc->offset; new_desc->size = src_desc->size; #endif dest_desc_list->first = (ULONG)new_desc; dest_desc_list->list_len = src_desc_list->list_len; } else{ /* * store connection id */ src_desc_buff[PR_TYPE_POS] = ((UBYTE*)cbuf.c_hdr)[PR_TYPE_POS] ;/*lint !e415 !e416 creation and access of out-of-bounds pointer */ } TRACE_EVENT("INFO COMP: Header Type TYPE_UNCOMPRESSED_TCP"); break; /* * Compressed TCP/IP packet */ case TYPE_COMPRESSED_TCP: /* compute compressed header length */ offset = (USHORT)(src_desc->len - cbuf.pack_len); #ifdef _SNDCP_DTI_2_ MALLOC(new_desc, (USHORT)(sizeof(T_desc2) - 1 + cbuf.pack_len)); #else MALLOC(new_desc, (USHORT)(sizeof(T_desc) - 1 + cbuf.pack_len)); #endif /* * Copy compressed header to new descriptor */ memcpy(&new_desc->buffer[0], (UBYTE*)cbuf.c_hdr, cbuf.hdr_len); /* * Copy payload to new descriptor */ memcpy(&new_desc->buffer[cbuf.hdr_len], &src_desc_buff[hdr_len], cbuf.pack_len-cbuf.hdr_len) ;/*lint !e644 !e662 Possible creation of out-of-bounds pointer */ /* * Build destination descriptor list */ new_desc->next = src_desc->next; new_desc->len = (USHORT)cbuf.pack_len; #ifdef _SNDCP_DTI_2_ new_desc->offset = 0; new_desc->size = (USHORT)cbuf.pack_len; #endif dest_desc_list->first = (ULONG)new_desc; dest_desc_list->list_len = src_desc_list->list_len - offset; /* * if unacknowledgement mode */ if(src_desc_list == dest_desc_list) { /* * Free source decsriptor */ MFREE(src_desc); } TRACE_EVENT("INFO COMP: Header TYPE_COMPRESSED_TCP"); break; default: TRACE_EVENT("Header Type: TYPE_ERROR"); break; } #ifdef SNDCP_TRACE_BUFFER sndcp_trace_desc_list(dest_desc_list); #endif /* SNDCP_TRACE_BUFFER */ } /* cia_header_comp*/ #endif /* CF_FAST_EXEC */ #ifndef _SNDCP_DTI_2_ /* +------------------------------------------------------------------------------ | Function : cia_su_cia_comp_req +------------------------------------------------------------------------------ | Description : Simulation for cia reaction to SIG_SU_CIA_DATA_REQ. | Instead of sending the pdu to cia and then receiving | 1 or more CIA_COMP_IND. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ !defined(REL99) || defined(SNDCP_2to1) */ LOCAL void cia_su_cia_comp_req (T_SN_UNITDATA_REQ* sn_unitdata_req, USHORT npdu_number, UBYTE nsapi, UBYTE sapi, UBYTE packet_type ) { BOOL ready = FALSE; USHORT header_size = SN_UNITDATA_PDP_HDR_LEN_BIG; /* * Bit offset in destination sdu. */ USHORT bit_offset = ENCODE_OFFSET + (USHORT)(header_size << 3); /* * Offset in current desc. */ USHORT desc_offset = 0; USHORT sdu_len = 0; UBYTE first = SEG_POS_FIRST; UBYTE segment_number = 0; T_desc_list* desc_list = &sn_unitdata_req->desc_list; TRACE_FUNCTION( "cia_su_cia_comp_req" ); while (!ready && desc_list->first != NULL) { /* * How long will sdu be? */ if (desc_list->list_len + header_size >= sndcp_data->su->n201_u) { sdu_len = (USHORT)(sndcp_data->su->n201_u << 3); } else { sdu_len = (USHORT)((desc_list->list_len + header_size) << 3); } { PALLOC_SDU(cia_comp_ind, CCI_COMP_IND, sdu_len); /* * Set parameters. */ cia_comp_ind->sapi = sapi; /* * cia_qos is not yet used, set to 0. */ cia_comp_ind->cia_qos.delay = 0; cia_comp_ind->cia_qos.relclass = 0; cia_comp_ind->cia_qos.peak = 0; cia_comp_ind->cia_qos.preced = 0; cia_comp_ind->cia_qos.mean = 0; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cia_comp_ind->algo_type = CIA_ALGO_V42; cia_comp_ind->comp_inst = CIA_COMP_INST_V42_0; cia_comp_ind->pdu_ref.ref_nsapi = nsapi; cia_comp_ind->pdu_ref.ref_npdu_num = npdu_number; cia_comp_ind->pdu_ref.ref_seg_num = segment_number; segment_number ++; if (desc_list->list_len + header_size <= sndcp_data->su->n201_u) { cia_comp_ind->seg_pos = first + SEG_POS_LAST; } else { cia_comp_ind->seg_pos = first; } cia_comp_ind->packet_type = packet_type; /* * Copy descriptors to cia_comp_ind->sdu. */ while (desc_list->first != NULL) { T_desc* help = (T_desc*)desc_list->first; USHORT cur_len = (((T_desc*)desc_list->first)->len - desc_offset); if ((cur_len << 3) <= cia_comp_ind->sdu.l_buf + cia_comp_ind->sdu.o_buf - bit_offset) { /* * Copy current desc to sdu. */ if (cur_len>0) { memcpy(&cia_comp_ind->sdu.buf[bit_offset >> 3], &((T_desc*)desc_list->first)->buffer[desc_offset], cur_len); } bit_offset += (USHORT)(cur_len << 3); desc_list->list_len -= cur_len; /* * Free read desc and go to next in list. */ desc_list->first = help->next; desc_offset = 0; MFREE(help); help = NULL; } else { /* * Current desc does not fit completely in sdu. */ USHORT part_len = (USHORT)(cia_comp_ind->sdu.l_buf + cia_comp_ind->sdu.o_buf - bit_offset) >> 3; if (part_len > 0) { memcpy(&cia_comp_ind->sdu.buf[bit_offset >> 3], &((T_desc*)desc_list->first)->buffer[desc_offset], part_len); desc_offset += part_len; } desc_list->list_len -= part_len; header_size = SN_UNITDATA_PDP_HDR_LEN_SMALL; bit_offset = ENCODE_OFFSET + (USHORT)(header_size << 3); break; } } /* while (desc_list->first != NULL) { */ /* * Instead of PSEND(SNDCP_handle, cia_comp_ind); */ cia_cia_comp_ind(cia_comp_ind); /* * One segment sent, set 'first' to 'none'. */ first = SEG_POS_NONE; } /* * If the desc_list is empty now, leave. */ if (sn_unitdata_req->desc_list.list_len == 0) { PFREE(sn_unitdata_req); sn_unitdata_req = NULL; ready = TRUE; } } } /* cia_su_cia_comp_req() */ /*#endif */ /* CF_FAST_EXEC || _SIMULATION_ || !REL99 || SNDCP_2to1 */ #else /* _SNDCP_DTI_2_ */ /* +------------------------------------------------------------------------------ | Function : cia_su_cia_comp_req +------------------------------------------------------------------------------ | Description : This function is used, if no data compression is used in | uplink. It does only the segmentation of the incoming data. | | Simulation for cia reaction to SIG_SU_CIA_DATA_REQ. | Instead of sending the pdu to cia and then receiving | 1 or more CIA_COMP_IND. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ !defined(REL99) || defined(SNDCP_2to1) */ LOCAL void cia_su_cia_comp_req (T_SN_UNITDATA_REQ* sn_unitdata_req, USHORT npdu_number, UBYTE nsapi, UBYTE sapi, UBYTE packet_type ) { BOOL ready = FALSE; U16 header_size = SN_UNITDATA_PDP_HDR_LEN_BIG; U16 desc2_data_struct_offset = 0; U8 first = SEG_POS_FIRST; U8 segment_number = 0; U32* segment_header; T_desc_list2* desc_list2 = &sn_unitdata_req->desc_list2; T_desc_list3 desc_list3; T_desc3* desc3; T_desc3* current_desc3; /* * Offset in current desc. Set the desc_offset to the offset of * the first desc in the list that is to be read. */ U16 desc_offset = ((T_desc2*)desc_list2->first)->offset; TRACE_FUNCTION( "cia_su_cia_comp_req" ); while (!ready && desc_list2->first != NULL) { /* * How long will the segment be? */ desc_list3.first = NULL; desc_list3.list_len = 0; if ((desc_list2->list_len + header_size) >= sndcp_data->su->n201_u) { desc_list3.list_len = (USHORT)sndcp_data->su->n201_u; } else { desc_list3.list_len = (USHORT)(desc_list2->list_len + header_size); } { T_CIA_COMP_IND *cia_comp_ind; MALLOC(cia_comp_ind, sizeof(T_CIA_COMP_IND)); /* * Set parameters. */ cia_comp_ind->sapi = sapi; /* * cia_qos is not yet used, set to 0. */ cia_comp_ind->cia_qos.delay = 0; cia_comp_ind->cia_qos.relclass = 0; cia_comp_ind->cia_qos.peak = 0; cia_comp_ind->cia_qos.preced = 0; cia_comp_ind->cia_qos.mean = 0; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cia_comp_ind->algo_type = CIA_ALGO_V42; cia_comp_ind->comp_inst = CIA_COMP_INST_V42_0; cia_comp_ind->pdu_ref.ref_nsapi = nsapi; cia_comp_ind->pdu_ref.ref_npdu_num = npdu_number; cia_comp_ind->pdu_ref.ref_seg_num = segment_number; segment_number ++; /* Allocate memory for SNDCP header and LLC encode offset */ MALLOC (segment_header, (USHORT)(ENCODE_OFFSET_BYTE + header_size)); MALLOC (desc3, (U16)(sizeof(T_desc3))); /* * Fill desc3 descriptor control information. */ desc3->next = (U32)NULL; desc3->len = header_size; desc3->offset = ENCODE_OFFSET_BYTE; desc3->buffer = (U32)segment_header; desc_list3.first = (U32)desc3; current_desc3 = desc3; if (desc_list2->list_len + header_size <= sndcp_data->su->n201_u) { cia_comp_ind->seg_pos = first + SEG_POS_LAST; } else { cia_comp_ind->seg_pos = first; } cia_comp_ind->packet_type = packet_type; cia_comp_ind->desc_list3.first = desc_list3.first; cia_comp_ind->desc_list3.list_len = desc_list3.list_len; desc_list3.list_len = 0; desc_list3.list_len += desc3->len; /* * Copy descriptors to cia_comp_ind->desc_list3, list may have to be built. */ while (desc_list2->first != NULL) {/* This while moves data from desc2 to segment defined by desc3 descriptors*/ T_desc2* help = (T_desc2*)desc_list2->first; U16 cur_len = (((T_desc2*)desc_list2->first)->len - desc_offset); desc2_data_struct_offset = offsetof(T_desc2, buffer); if (cur_len <= (sndcp_data->su->n201_u - desc_list3.list_len)) {/* Is there room for all the desc2 data in the current segment */ /* * describe current desc2 by desc3 descriptors. */ MALLOC (desc3, (USHORT)(sizeof(T_desc3))); /* * Fill desc3 descriptor control information. */ desc3->next = (U32)NULL; desc3->len = cur_len; desc3->offset = desc_offset + desc2_data_struct_offset; desc3->buffer = (U32)desc_list2->first; current_desc3->next = (U32)desc3; current_desc3 = desc3; desc_list3.list_len += desc3->len; /* Attach desc3 to desc2 allocation, this is always the last attach on a desc2 descriptor */ sndcp_cl_desc2_attach(help); desc_list2->list_len -= cur_len; /* * Free read desc and go to next in list. */ desc_list2->first = help->next; /* * If another desc is present in the list to be read, then * set the desc_offset to the offset of the next desc in the * list that is to be read. Else set desc_offset to zero */ if (desc_list2->first != NULL) { desc_offset = ((T_desc2*)desc_list2->first)->offset; } else { desc_offset = 0; } MFREE(help); help = NULL; } else { /* * Current desc does not fit completely in sdu. */ USHORT part_len = (USHORT)(sndcp_data->su->n201_u - desc_list3.list_len); if (part_len > 0) { MALLOC (desc3, (USHORT)(sizeof(T_desc3))); /* * Fill desc3 descriptor control information. */ desc3->next = (ULONG)NULL; desc3->len = part_len; desc3->offset = desc_offset + desc2_data_struct_offset; desc3->buffer = (ULONG)desc_list2->first; current_desc3->next = (ULONG)desc3; current_desc3 = desc3; desc_list3.list_len += desc3->len; /* Attach desc3 to desc2 allocation, this is an intermediate attach on a desc2 descriptor */ sndcp_cl_desc2_attach(help); desc_offset += part_len; } desc_list2->list_len -= part_len; header_size = SN_UNITDATA_PDP_HDR_LEN_SMALL; break; } } /* while (desc_list->first != NULL) { */ /* * Instead of PSEND(SNDCP_handle, cia_comp_ind); */ cia_cia_comp_ind(cia_comp_ind); /* * One segment sent, set 'first' to 'none'. */ first = SEG_POS_NONE; } /* * If the desc_list is empty now, leave. */ if (sn_unitdata_req->desc_list2.list_len == 0) { MFREE(sn_unitdata_req); sn_unitdata_req = NULL; ready = TRUE; } } } /* cia_su_cia_comp_req() */ /*#endif */ /* CF_FAST_EXEC || _SIMULATION_ || !REL99 || SNDCP_2to1 */ #ifdef TI_PS_FF_V42BIS /* +------------------------------------------------------------------------------ | Function : cia_su_cci_comp_req +------------------------------------------------------------------------------ | Description : This function is used, if data compression is used in uplink | direction. At first it calls the data compression function with | parameters, that allow a segmentation without memcopy. Than it | does the segmentation. | | Simulation for CCI reaction to SIG_SU_CIA_DATA_REQ. | Instead of sending the pdu to CCI and then receiving | 1 or more CCI_COMP_IND. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ !defined(REL99) || defined(SNDCP_2to1) */ LOCAL void cia_su_cci_comp_req (T_SN_UNITDATA_REQ* sn_unitdata_req, USHORT npdu_number, UBYTE nsapi, UBYTE sapi, UBYTE packet_type ) { BOOL ready = FALSE; U16 header_size = SN_UNITDATA_PDP_HDR_LEN_BIG; U16 desc2_data_struct_offset = offsetof(T_desc2, buffer); U8 segment_position = SEG_POS_FIRST; U8 segment_number = 0; U32* segment_header; T_desc_list2* desc_list2 = &sn_unitdata_req->desc_list2; T_desc2* desc2; T_desc_list3 desc_list3; T_desc3* desc3; T_desc3* current_desc3; U8 descs_per_seg = 5; U8 i; U16 desc_size = (sndcp_data->su->n201_u - header_size - (desc2_data_struct_offset + 1) * descs_per_seg) / descs_per_seg + desc2_data_struct_offset + 1; TRACE_FUNCTION( "cia_su_cci_comp_req" ); TRACE_EVENT_P1("sn_unitdata_req in: %08x", sn_unitdata_req); //TRACE_EVENT_P1("PacketType: %d",packet_type); /* * Reset V.42 context and call the encoder routine */ //TRACE_EVENT_P1("V42 ENC: Input Uncompressed Packet, length %d", desc_list2->list_len); #ifdef SNDCP_TRACE_BUFFER //sndcp_trace_desc_list(desc_list2); #endif v42b_init(sndcp_data->cia.enc, 0, 0, 0, 0); TRACE_FUNCTION ("as reinit in uplink"); /* * the function can be called with 0s as parameters, because it was initialized * befor what the function sees on the valid magic number * * the call replaces an independent reinit function */ v42b_encoder(sndcp_data->cia.enc, desc_list2, NULL, desc_size); //TRACE_EVENT_P1("V42 ENC: Output Compresset Packet, length %d", desc_list2->list_len); #ifdef SNDCP_TRACE_BUFFER //sndcp_trace_desc_list(desc_list2); #endif desc2 = (T_desc2*)desc_list2->first; while (desc2) { desc_list3.first = (U32) NULL; desc_list3.list_len = 0; MALLOC(segment_header, (ENCODE_OFFSET_BYTE + header_size)); MALLOC(desc3,sizeof(T_desc3)); desc3->next = (U32) NULL; desc3->len = header_size; desc3->offset = ENCODE_OFFSET_BYTE; desc3->buffer = (U32)segment_header; desc_list3.first = (U32)desc3; desc_list3.list_len = desc3->len; current_desc3 = desc3; for (i = 0; (i < descs_per_seg) && desc2; i++) { MALLOC(desc3,sizeof(T_desc3)); desc3->next = (U32) NULL; desc3->len = desc2->len; desc3->offset = desc2->offset + desc2_data_struct_offset; desc3->buffer = (U32)desc2; current_desc3->next = (U32) desc3; current_desc3 = desc3; desc_list3.list_len += desc3->len; desc2 = (T_desc2*) desc2->next; } header_size = SN_UNITDATA_PDP_HDR_LEN_SMALL; { T_CIA_COMP_IND *cia_comp_ind; MALLOC(cia_comp_ind, sizeof(T_CIA_COMP_IND)); /* * Set parameters. */ cia_comp_ind->sapi = sapi; /* * cci_qos is not yet used, set to 0. */ cia_comp_ind->cia_qos.delay = 0; cia_comp_ind->cia_qos.relclass = 0; cia_comp_ind->cia_qos.peak = 0; cia_comp_ind->cia_qos.preced = 0; cia_comp_ind->cia_qos.mean = 0; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cia_comp_ind->algo_type = CCI_ALGO_V42; cia_comp_ind->comp_inst = CCI_COMP_INST_V42_0; cia_comp_ind->pdu_ref.ref_nsapi = nsapi; cia_comp_ind->pdu_ref.ref_npdu_num = npdu_number; cia_comp_ind->pdu_ref.ref_seg_num = segment_number; segment_number ++; if (desc2 != NULL) { cia_comp_ind->seg_pos = segment_position; } else { cia_comp_ind->seg_pos = segment_position | SEG_POS_LAST; } cia_comp_ind->packet_type = packet_type; cia_comp_ind->desc_list3.first = desc_list3.first; cia_comp_ind->desc_list3.list_len = desc_list3.list_len; /* * Instead of PSEND(SNDCP_handle, cci_comp_ind); */ cia_cia_comp_ind(cia_comp_ind); /* * One segment sent, set 'first' to 'none'. */ segment_position = SEG_POS_NONE; } } /* * If the desc_list2 is empty now, leave. */ TRACE_EVENT_P1("sn_unitdata_req out: %08x", sn_unitdata_req); MFREE(sn_unitdata_req); sn_unitdata_req = NULL; } /*#endif */ /* FAST_EXEC */ #endif /* TI_PS_FF_V42BIS */ #endif /* _SNDCP_DTI_2_ */ #ifdef _SNDCP_DTI_2_ /* +------------------------------------------------------------------------------ | Function : cia_sua_cia_comp_req +------------------------------------------------------------------------------ | Description : Simulation for cia reaction to SIG_SUA_CIA_DATA_REQ. | Instead of sending the pdu to cia and then receiving | 1 or more CIA_COMP_IND. | | Parameters : | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC LOCAL void cia_sua_cia_comp_req (T_desc_list2 dest_desc_list, U8 npdu_number, U8 nsapi, U8 sapi, U8 packet_type ) { BOOL ready = FALSE; U16 header_size = SN_DATA_PDP_HDR_LEN_BIG; U16 desc2_data_struct_offset = 0; U8 first = SEG_POS_FIRST; U8 segment_number = 0; U32* segment_header; T_desc_list2* desc_list2 = &dest_desc_list; T_desc_list3 desc_list3; T_desc3* desc3; T_desc3* current_desc3; USHORT list_len = desc_list2->list_len; T_desc2* help = (T_desc2*)desc_list2->first; T_desc2* delhelp = NULL; /* * Offset in current descriptor Set the desc_offset to the offset of * the first desc in the list that is to be read. */ U16 desc_offset = help->offset; TRACE_FUNCTION( "cia_sua_cia_comp_req" ); while (!ready && help != NULL) { /* * How long will the segment be? */ desc_list3.first = NULL; desc_list3.list_len = 0; if ((list_len + header_size) >= sndcp_data->sua->n201_i) { desc_list3.list_len = (U16)sndcp_data->sua->n201_i; } else { desc_list3.list_len = (U16)(list_len + header_size); } { /* * First desc in list must be header!!! */ BOOL first_part = TRUE; T_CIA_COMP_IND *cia_comp_ind; MALLOC(cia_comp_ind, sizeof(T_CIA_COMP_IND)); /* * Set parameters. */ cia_comp_ind->sapi = sapi; /* * cia_qos is not yet used, set to 0. */ cia_comp_ind->cia_qos.delay = 0; cia_comp_ind->cia_qos.relclass = 0; cia_comp_ind->cia_qos.peak = 0; cia_comp_ind->cia_qos.preced = 0; cia_comp_ind->cia_qos.mean = 0; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cia_comp_ind->algo_type = CIA_ALGO_V42; cia_comp_ind->comp_inst = CIA_COMP_INST_V42_0; cia_comp_ind->pdu_ref.ref_nsapi = nsapi; cia_comp_ind->pdu_ref.ref_npdu_num = npdu_number; cia_comp_ind->pdu_ref.ref_seg_num = segment_number; segment_number ++; /* Allocate memory for SNDCP header and LLC encode offset */ MALLOC (segment_header, (U16)(ENCODE_OFFSET_BYTE + header_size)); MALLOC (desc3, (U16)(sizeof(T_desc3))); /* * Fill desc3 descriptor control information. */ desc3->next = (U32)NULL; desc3->len = header_size; desc3->offset = ENCODE_OFFSET_BYTE; desc3->buffer = (U32)segment_header; desc_list3.first = (U32)desc3; current_desc3 = desc3; if (list_len + header_size <= sndcp_data->sua->n201_i) { cia_comp_ind->seg_pos = first + SEG_POS_LAST; } else { cia_comp_ind->seg_pos = first; } cia_comp_ind->packet_type = packet_type; cia_comp_ind->desc_list3.first = desc_list3.first; cia_comp_ind->desc_list3.list_len = desc_list3.list_len; desc_list3.list_len = 0; desc_list3.list_len += desc3->len; /* * Copy descriptors to cia_comp_ind->desc_list3, list may have to be built. */ while (help != NULL) {/* * This while moves data from desc2 to segment defined * by desc3 descriptors */ U16 cur_len = (help->len - desc_offset); desc2_data_struct_offset = offsetof(T_desc2, buffer); if (cur_len <= (sndcp_data->sua->n201_i - desc_list3.list_len)) {/* Is there room for all the desc2 data in the current segment */ /* * describe current desc2 by desc3 descriptors. */ if (cur_len>0) { MALLOC (desc3, (U16)(sizeof(T_desc3))); /* * Fill desc3 descriptor control information. */ desc3->next = (U32)NULL; desc3->len = cur_len; desc3->offset = desc_offset + desc2_data_struct_offset; desc3->buffer = (U32)help; current_desc3->next = (ULONG)desc3; current_desc3 = desc3; desc_list3.list_len += desc3->len; /* Attach desc3 to desc2 allocation, this is always the last attach on a desc2 descriptor */ sndcp_cl_desc2_attach(help); } list_len -= cur_len; /* * Free read desc and go to next in list. */ if (help != NULL) { delhelp = help; help = (T_desc2*)help->next; } /* * If another desc is present in the list to be read, then * set the desc_offset to the offset of the next desc in the * list that is to be read. Else set desc_offset to zero */ if (help != NULL) { desc_offset = help->offset; } else { desc_offset = 0; } if (delhelp != NULL && first_part && (packet_type == TYPE_COMPRESSED_TCP || packet_type == TYPE_UNCOMPRESSED_TCP)) { MFREE(delhelp); delhelp = NULL; first_part = FALSE; } } else { /* * Current desc does not fit completely in sdu. */ U16 part_len = (USHORT)(sndcp_data->sua->n201_i-desc_list3.list_len); if (part_len>0) { MALLOC (desc3, (USHORT)(sizeof(T_desc3))); /* * Fill desc3 descriptor control information. */ desc3->next = (ULONG)NULL; desc3->len = part_len; desc3->offset = desc_offset + desc2_data_struct_offset; desc3->buffer = (ULONG)help; current_desc3->next = (ULONG)desc3; current_desc3 = desc3; desc_list3.list_len += desc3->len; /* Attach desc3 to desc2 allocation, this is an intermediate attach on a desc2 descriptor */ sndcp_cl_desc2_attach(help); desc_offset += part_len; } list_len -= part_len; header_size = SN_DATA_PDP_HDR_LEN_SMALL; break; } } /* * Instead of PSEND(SNDCP_handle, cia_comp_ind); */ cia_cia_comp_ind(cia_comp_ind); /* * One segment sent, set 'first' to 'none'. */ first = SEG_POS_NONE; } /* * If the desc_list is empty now, leave. */ if (list_len == 0) { ready = TRUE; } } } /* cia_sua_cia_comp_req() */ #endif /* CF_FAST_EXEC */ #else /* _SNDCP_DTI_2_ */ /* +------------------------------------------------------------------------------ | Function : cia_sua_cia_comp_req +------------------------------------------------------------------------------ | Description : Simulation for cia reaction to SIG_SUA_CIA_DATA_REQ. | Instead of sending the pdu to cia and then receiving | 1 or more CIA_COMP_IND. | | Parameters : | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC LOCAL void cia_sua_cia_comp_req (T_desc_list dest_desc_list, UBYTE npdu_number, UBYTE nsapi, UBYTE sapi, UBYTE packet_type ) { BOOL ready = FALSE; USHORT header_size = SN_DATA_PDP_HDR_LEN_BIG; USHORT bit_offset = ENCODE_OFFSET + (USHORT)(header_size << 3); USHORT desc_offset = 0; USHORT sdu_len = 0; UBYTE first = SEG_POS_FIRST; UBYTE segment_number = 0; T_desc_list* desc_list = &dest_desc_list; USHORT list_len = desc_list->list_len; T_desc* help = (T_desc*)desc_list->first; T_desc* delhelp = NULL; USHORT help_buffer_offset = 0; TRACE_FUNCTION( "cia_sua_cia_comp_req" ); while (!ready && help != NULL) { /* * How long will sdu be? */ if (list_len + header_size >= sndcp_data->sua->n201_i) { sdu_len = (USHORT)(sndcp_data->sua->n201_i << 3); } else { sdu_len = (USHORT)((list_len + header_size) << 3); } { /* * First desc in list must be header!!! */ BOOL first_part = TRUE; PALLOC_SDU(cia_comp_ind, CCI_COMP_IND, sdu_len); /* * Set parameters. */ cia_comp_ind->sapi = sapi; /* * cia_qos is not yet used, set to 0. */ cia_comp_ind->cia_qos.delay = 0; cia_comp_ind->cia_qos.relclass = 0; cia_comp_ind->cia_qos.peak = 0; cia_comp_ind->cia_qos.preced = 0; cia_comp_ind->cia_qos.mean = 0; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cia_comp_ind->algo_type = CIA_ALGO_V42; cia_comp_ind->comp_inst = CIA_COMP_INST_V42_0; cia_comp_ind->pdu_ref.ref_nsapi = nsapi; cia_comp_ind->pdu_ref.ref_npdu_num = npdu_number; cia_comp_ind->pdu_ref.ref_seg_num = segment_number; segment_number ++; if (list_len + header_size <= sndcp_data->sua->n201_i) { cia_comp_ind->seg_pos = first + SEG_POS_LAST; } else { cia_comp_ind->seg_pos = first; } cia_comp_ind->packet_type = packet_type; /* * Copy descriptors to cia_comp_ind->sdu. */ while (help != NULL) { USHORT cur_len = (help->len - desc_offset); if ((cur_len << 3) <= cia_comp_ind->sdu.l_buf + cia_comp_ind->sdu.o_buf - bit_offset) { /* * Copy current desc to sdu. */ if (cur_len>0) { memcpy(&cia_comp_ind->sdu.buf[bit_offset >> 3], &help->buffer[desc_offset], cur_len); } bit_offset += (USHORT)(cur_len << 3); list_len -= cur_len; /* * Free read desc and go to next in list. */ if (help != NULL) { delhelp = help; help = (T_desc*)help->next; } help_buffer_offset = 0; desc_offset = 0; if (delhelp != NULL && first_part && (packet_type == TYPE_COMPRESSED_TCP || packet_type == TYPE_UNCOMPRESSED_TCP)) { MFREE(delhelp); delhelp = NULL; first_part = FALSE; } } else { /* * Current desc does not fit completely in sdu. */ desc_offset = (USHORT)(cia_comp_ind->sdu.l_buf + cia_comp_ind->sdu.o_buf - bit_offset) >> 3; if (desc_offset>0) { memcpy(&cia_comp_ind->sdu.buf[bit_offset >> 3], &help->buffer[help_buffer_offset], desc_offset); help_buffer_offset += (desc_offset); } list_len -= desc_offset; header_size = SN_DATA_PDP_HDR_LEN_SMALL; bit_offset = ENCODE_OFFSET + (USHORT)(header_size << 3); break; } } /* * Instead of PSEND(SNDCP_handle, cia_comp_ind); */ cia_cia_comp_ind(cia_comp_ind); /* * One segment sent, set 'first' to 'none'. */ first = SEG_POS_NONE; } /* * If the desc_list is empty now, leave. */ if (list_len == 0) { ready = TRUE; } } } /* cia_sua_cia_comp_req() */ #endif /* CF_FAST_EXEC */ #endif /*_SNDCP_DTI_2_*/ /* +------------------------------------------------------------------------------ | Function : cia_sd_cia_decomp_req +------------------------------------------------------------------------------ | Description : This Function does the defragmentation for noncompressed data. | | Simulation for cia reaction to SIG_SD_CIA_TRANSFER_REQ. | If (cur_seg_pos & SEG_POS_FIRST > 0) then a new CIA_DECOMP_IND is allocated. | T_desc is allocated with the length of the sdu included in the | ll_unitdata_ind. The sdu data is copied to the desc and the desc is added to | the currently assembled desc_list in the current CIA_DECOMP_IND. | If (cur_seg_pos & SEG_POS_LAST > 0) then a the CIA_DECOMP_IND is now complete | and is "sent to this service" by calling the cia function cia_cia_decomp_ind. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ !defined(REL99) || defined(SNDCP_2to1) */ GLOBAL void cia_sd_cia_decomp_req(T_LL_UNITDATA_IND* ll_unitdata_ind) { USHORT length = 0; USHORT header_len = SN_UNITDATA_PDP_HDR_LEN_SMALL; USHORT sdu_index = 0; T_CIA_DECOMP_IND *cur_cia_decomp_ind; UBYTE nsapi; #ifdef _SNDCP_DTI_2_ T_desc2* help = NULL; T_desc2* descriptor = NULL; #else /*_SNDCP_DTI_2_*/ T_desc* help = NULL; T_desc* descriptor = NULL; #endif /*_SNDCP_DTI_2_*/ TRACE_FUNCTION( "cia_sd_cia_decomp_req" ); nsapi = (ll_unitdata_ind->sdu.buf[(ll_unitdata_ind->sdu.o_buf / 8)]) & 0xf; cur_cia_decomp_ind = sndcp_data->cia.cur_cia_decomp_ind[nsapi]; /* * In case of first segment allocate new N-PDU. */ if ((sndcp_data->cur_seg_pos[nsapi] & SEG_POS_FIRST) > 0) { { T_CIA_DECOMP_IND *cia_decomp_ind; MALLOC(cia_decomp_ind, sizeof(T_CIA_DECOMP_IND)); #ifdef SNDCP_TRACE_ALL sndcp_data->cia.cia_decomp_ind_number[nsapi] ++; TRACE_EVENT_P1("number of cia_decomp_ind: % d", sndcp_data->cia.cia_decomp_ind_number[nsapi]); #endif /* SNDCP_TRACE_ALL */ /* * if there is an unfinished cur_cia_decomp_ind deallocate it together * with the allocated descriptors */ if (cur_cia_decomp_ind NEQ NULL) { MFREE_PRIM(cur_cia_decomp_ind); TRACE_EVENT("Deallocate unfinished cur_cia_decomp_ind"); } cur_cia_decomp_ind = cia_decomp_ind; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cur_cia_decomp_ind->algo_type = CIA_ALGO_V42; cur_cia_decomp_ind->comp_inst = CIA_COMP_INST_V42_0; cur_cia_decomp_ind->pdu_ref = sndcp_data->cur_pdu_ref[nsapi]; cur_cia_decomp_ind->desc_list2.first = (ULONG)NULL; cur_cia_decomp_ind->desc_list2.list_len = 0; header_len = SN_UNITDATA_PDP_HDR_LEN_BIG; cia_decomp_ind->pcomp = ll_unitdata_ind->sdu.buf[(ll_unitdata_ind->sdu.o_buf >> 3) + 1] & 0xf; } } /* * If big header has been received in state != RECEIVE_FIRST_SEGMENT */ if (sndcp_data->big_head[nsapi]) { header_len = SN_UNITDATA_PDP_HDR_LEN_BIG; } sdu_index = (ll_unitdata_ind->sdu.o_buf >> 3) + header_len; length = (ll_unitdata_ind->sdu.l_buf >> 3) - header_len; /* * Allocate new descriptor and copy sdu data. */ #ifdef _SNDCP_DTI_2_ MALLOC (descriptor, (USHORT)(sizeof(T_desc2) - 1 + length)); #else /*_SNDCP_DTI_2_*/ MALLOC (descriptor, (USHORT)(sizeof(T_desc) - 1 + length)); #endif /*_SNDCP_DTI_2_*/ /* * Fill descriptor control information. */ descriptor->next = (ULONG)NULL; descriptor->len = length; #ifdef _SNDCP_DTI_2_ descriptor->offset = 0; descriptor->size = descriptor->len; #endif /* * Add length of descriptor data to list length. */ cur_cia_decomp_ind->desc_list2.list_len += length; /* * Copy user data from SDU to descriptor. */ if (length>0) { memcpy (descriptor->buffer, &ll_unitdata_ind->sdu.buf[sdu_index], length); } /* * Add desc to desc_list. */ #ifdef _SNDCP_DTI_2_ help = (T_desc2*)cur_cia_decomp_ind->desc_list2.first; #else /*_SNDCP_DTI_2_*/ help = (T_desc*)cur_cia_decomp_ind->desc_list2.first; #endif /*_SNDCP_DTI_2_*/ if (help == NULL) { cur_cia_decomp_ind->desc_list2.first = (ULONG)descriptor; } else { if (help->next == NULL) { help->next = (ULONG) descriptor; } else { while (help->next != NULL) { #ifdef _SNDCP_DTI_2_ help = (T_desc2*)help->next; #else /*_SNDCP_DTI_2_*/ help = (T_desc*)help->next; #endif /*_SNDCP_DTI_2_*/ } help->next = (ULONG)descriptor; } } /* * If this is the last segment, send it to this same service with a simulated * primitive. */ if ((sndcp_data->cur_seg_pos[nsapi] & SEG_POS_LAST) > 0) { /* * By now algo_type, cia_qos and comp_inst are not evaluated. */ cur_cia_decomp_ind->pdu_ref = sndcp_data->cur_pdu_ref[nsapi]; cia_cia_decomp_ind(cur_cia_decomp_ind); cur_cia_decomp_ind = NULL; } else { /* * Request next segment. */ sd_get_unitdata_if_nec(ll_unitdata_ind->sapi); } /* * Update global current CIA_DECOMP_IND */ sndcp_data->cia.cur_cia_decomp_ind[nsapi] = cur_cia_decomp_ind; /* * Free incoming prim. */ if (ll_unitdata_ind != NULL) { PFREE (ll_unitdata_ind); ll_unitdata_ind = NULL; } } /* cia_sd_cia_decomp_req() */ /*#endif */ /* CF_FAST_EXEC || _SIMULATION_ || !REL99 || SNDCP_2to1 */ #ifdef TI_PS_FF_V42BIS /* +------------------------------------------------------------------------------ | Function : cia_sd_cci_decomp_req +------------------------------------------------------------------------------ | Description : This function does the desegmentation and decomressoin for | compressed data. | | Simulation for CCI reaction to SIG_SD_CIA_TRANSFER_REQ. | If (cur_seg_pos & SEG_POS_FIRST > 0) then a new CCI_DECOMP_IND is allocated. | T_desc is allocated with the length of the sdu included in the | ll_unitdata_ind. The sdu data is copied to the desc and the desc is added to | the currently assembled desc_list in the current CCI_DECOMP_IND. | If (cur_seg_pos & SEG_POS_LAST > 0) then a the CCI_DECOMP_IND is now complete | and is "sent to this service" by calling the cia function cia_cci_decomp_ind. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ !defined(REL99) || defined(SNDCP_2to1) */ LOCAL void cia_sd_cci_decomp_req (/*T_pdu_ref pdu_ref, USHORT cur_seg_pos, */T_LL_UNITDATA_IND* ll_unitdata_ind ) { USHORT length = 0; USHORT header_len = SN_UNITDATA_PDP_HDR_LEN_SMALL; USHORT sdu_index = 0; T_CIA_DECOMP_IND *cur_cia_decomp_ind; UBYTE nsapi; #ifdef _SNDCP_DTI_2_ T_desc2* help = NULL; T_desc2* descriptor = NULL; #else /*_SNDCP_DTI_2_*/ T_desc* help = NULL; T_desc* descriptor = NULL; #endif /*_SNDCP_DTI_2_*/ TRACE_FUNCTION( "cia_sd_cci_decomp_req" ); nsapi = (ll_unitdata_ind->sdu.buf[(ll_unitdata_ind->sdu.o_buf / 8)]) & 0xf; cur_cia_decomp_ind = sndcp_data->cia.cur_cia_decomp_ind[nsapi]; /* * In case of first segment allocate new N-PDU. */ if ((sndcp_data->cur_seg_pos[nsapi] & SEG_POS_FIRST) > 0) { { T_CIA_DECOMP_IND *cia_decomp_ind; MALLOC(cia_decomp_ind, sizeof(T_CIA_DECOMP_IND)); #ifdef SNDCP_TRACE_ALL sndcp_data->cia.cia_decomp_ind_number[nsapi] ++; TRACE_EVENT_P1("number of cia_decomp_ind: % d", sndcp_data->cia.cia_decomp_ind_number[nsapi]); #endif /* SNDCP_TRACE_ALL */ /* * if there is an unfinished cur_cia_decomp_ind deallocate it together * with the allocated descriptors */ if (cur_cia_decomp_ind NEQ NULL) { MFREE_PRIM(cur_cia_decomp_ind); TRACE_EVENT("Deallocate unfinished cur_cia_decomp_ind"); } cur_cia_decomp_ind = cia_decomp_ind; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cur_cia_decomp_ind->algo_type = CIA_ALGO_V42; cur_cia_decomp_ind->comp_inst = CIA_COMP_INST_V42_0; cur_cia_decomp_ind->pdu_ref = sndcp_data->cur_pdu_ref[nsapi]; cur_cia_decomp_ind->desc_list2.first = (ULONG)NULL; cur_cia_decomp_ind->desc_list2.list_len = 0; header_len = SN_UNITDATA_PDP_HDR_LEN_BIG; cia_decomp_ind->pcomp = ll_unitdata_ind->sdu.buf[(ll_unitdata_ind->sdu.o_buf >> 3) + 1] & 0xf; } } /* * If big header has been received in state != RECEIVE_FIRST_SEGMENT */ if (sndcp_data->big_head[nsapi]) { header_len = SN_UNITDATA_PDP_HDR_LEN_BIG; } sdu_index = (ll_unitdata_ind->sdu.o_buf >> 3) + header_len; length = (ll_unitdata_ind->sdu.l_buf >> 3) - header_len; /* * Allocate new descriptor and copy sdu data. */ #ifdef _SNDCP_DTI_2_ MALLOC (descriptor, (USHORT)(sizeof(T_desc2) - 1 + length)); #else /*_SNDCP_DTI_2_*/ MALLOC (descriptor, (USHORT)(sizeof(T_desc) - 1 + length)); #endif /*_SNDCP_DTI_2_*/ /* * Fill descriptor control information. */ descriptor->next = (ULONG)NULL; descriptor->len = length; #ifdef _SNDCP_DTI_2_ descriptor->offset = 0; descriptor->size = descriptor->len; #endif /* * Add length of descriptor data to list length. */ cur_cia_decomp_ind->desc_list2.list_len += length; /* * Copy user data from SDU to descriptor. */ if (length>0) { memcpy (descriptor->buffer, &ll_unitdata_ind->sdu.buf[sdu_index], length); } /* * Add desc to desc_list. */ #ifdef _SNDCP_DTI_2_ help = (T_desc2*)cur_cia_decomp_ind->desc_list2.first; #else /*_SNDCP_DTI_2_*/ help = (T_desc*)cur_cia_decomp_ind->desc_list2.first; #endif /*_SNDCP_DTI_2_*/ if (help == NULL) { cur_cia_decomp_ind->desc_list2.first = (ULONG)descriptor; } else { if (help->next == NULL) { help->next = (ULONG) descriptor; } else { while (help->next != NULL) { #ifdef _SNDCP_DTI_2_ help = (T_desc2*)help->next; #else /*_SNDCP_DTI_2_*/ help = (T_desc*)help->next; #endif /*_SNDCP_DTI_2_*/ } help->next = (ULONG)descriptor; } } /* * If this is the last segment, send it to this same service with a simulated * primitive. */ if ((sndcp_data->cur_seg_pos[nsapi] & SEG_POS_LAST) > 0) { T_desc_list2 desc_list2; /* * By now algo_type, cci_qos and comp_inst are not evaluated. */ cur_cia_decomp_ind->pdu_ref = sndcp_data->cur_pdu_ref[nsapi]; desc_list2.first = cur_cia_decomp_ind->desc_list2.first; desc_list2.list_len = cur_cia_decomp_ind->desc_list2.list_len; /* * Reset V.42 context and call the decoder routine. */ TRACE_EVENT_P1("V42 DEC: Input Compresset Packet, length %d", desc_list2.list_len); #ifdef SNDCP_TRACE_BUFFER sndcp_trace_desc_list(&desc_list2); sndcp_data->cia.trabu[0] = 0;/////////////////////////////////////////////////////////////// #endif v42b_init(sndcp_data->cia.dec, 0, 0, 0, 0); TRACE_EVENT ("as reinit in downlink"); /* * the function can be called with 0s as parameters, because it was initialized * befor what the function sees on the valid magic number * * the call replaces an independent reinit function */ v42b_decoder(sndcp_data->cia.dec, &desc_list2, NULL, 100); if (!IS_ERROR(sndcp_data->cia.dec)) { TRACE_EVENT_P1("V42 DEC: Output Decompressed Packet, length %d", desc_list2.list_len); #ifdef SNDCP_TRACE_BUFFER sndcp_trace_desc_list(&desc_list2); #endif cur_cia_decomp_ind->desc_list2.first = desc_list2.first; cur_cia_decomp_ind->desc_list2.list_len = desc_list2.list_len; cia_cia_decomp_ind(cur_cia_decomp_ind); cur_cia_decomp_ind = NULL; } else { MFREE_PRIM (cur_cia_decomp_ind); cur_cia_decomp_ind = NULL; TRACE_EVENT("Deallocate corrupted V.42 bis packet"); /* * Request next segment. */ sd_get_unitdata_if_nec(ll_unitdata_ind->sapi); } } else { /* * Request next segment. */ sd_get_unitdata_if_nec(ll_unitdata_ind->sapi); } /* * Update global current CIA_DECOMP_IND */ sndcp_data->cia.cur_cia_decomp_ind[nsapi] = cur_cia_decomp_ind; /* * Free incoming prim. */ if (ll_unitdata_ind != NULL) { PFREE (ll_unitdata_ind); ll_unitdata_ind = NULL; } } /* cia_sd_cci_decomp_req_sim() */ /* #endif *//* CF_FAST_EXEC || _SIMULATION_ || !REL99 || SNDCP_2to1 */ #endif /* TI_PS_FF_V42BIS */ /* +------------------------------------------------------------------------------ | Function : sig_sda_cia_cia_decomp_req +------------------------------------------------------------------------------ | Description : Simulation for cia reaction to SIG_SDA_CIA_TRANSFER_REQ. | If (cur_seg_pos & SEG_POS_FIRST > 0) then a new CIA_DECOMP_IND is allocated. | T_desc is allocated with the length of the sdu included in the | ll_data_ind. The sdu data is copied to the desc and the desc is added to | the currently assembled desc_list in the current CCI_DECOMP_IND. | If (cur_seg_pos & SEG_POS_LAST > 0) then a the CIA_DECOMP_IND is now complete | and is "sent to this service" by calling the cia function cia_cia_decomp_ind. | | Parameters : | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC GLOBAL void sig_sda_cia_cia_decomp_req ( T_LL_DATA_IND* ll_data_ind ) { USHORT length = 0; USHORT header_len = SN_DATA_PDP_HDR_LEN_SMALL; USHORT sdu_index = 0; T_CIA_DECOMP_IND *cur_cia_decomp_ind; UBYTE nsapi = 0; #ifdef _SNDCP_DTI_2_ T_desc2* help = NULL; T_desc2* local_desc = NULL; #else /*_SNDCP_DTI_2_*/ T_desc* help = NULL; T_desc* local_desc = NULL; #endif /*_SNDCP_DTI_2_*/ TRACE_FUNCTION( "cia_sig_sda_cia_cia_decomp_req_sim" ); nsapi = (ll_data_ind->sdu.buf[(ll_data_ind->sdu.o_buf / 8)]) & 0xf; cur_cia_decomp_ind = sndcp_data->cia.cur_cia_decomp_ind[nsapi]; /* * In case of first segment allocate new N-PDU. */ if ((sndcp_data->cur_seg_pos[nsapi] & SEG_POS_FIRST) > 0) { T_CIA_DECOMP_IND *cia_decomp_ind; MALLOC(cia_decomp_ind, sizeof(T_CIA_DECOMP_IND)); #ifdef SNDCP_TRACE_ALL sndcp_data->cia.cia_decomp_ind_number[nsapi] ++; TRACE_EVENT_P1("number of cia_decomp_ind: % d", sndcp_data->cia.cia_decomp_ind_number[nsapi]); #endif if (cur_cia_decomp_ind NEQ NULL) { MFREE_PRIM(cur_cia_decomp_ind); TRACE_EVENT("Deallocate unfinished cur_cia_decomp_ind"); } cur_cia_decomp_ind = cia_decomp_ind; /* * Will be changed as soon as more that 1 instance of V42.bis is used. */ cur_cia_decomp_ind->algo_type = CIA_ALGO_V42; cur_cia_decomp_ind->comp_inst = CIA_COMP_INST_V42_0; cur_cia_decomp_ind->pdu_ref = sndcp_data->cur_pdu_ref[nsapi]; cur_cia_decomp_ind->desc_list2.first = (ULONG)NULL; cur_cia_decomp_ind->desc_list2.list_len = 0; header_len = SN_DATA_PDP_HDR_LEN_BIG; cia_decomp_ind->pcomp = ll_data_ind->sdu.buf[(ll_data_ind->sdu.o_buf >> 3) + 1] & 0xf; } /* * If big header has been received in state != RECEIVE_FIRST_SEGMENT */ if (sndcp_data->big_head[nsapi]) { header_len = SN_DATA_PDP_HDR_LEN_BIG; } sdu_index = (ll_data_ind->sdu.o_buf >> 3) + header_len; if ((ll_data_ind->sdu.l_buf >> 3) < header_len){ /*This condition is added as part of fix for GCF 46.1.2.2.3.2 failure because of wrong length*/ TRACE_ERROR("SNDCP: Unexpected Length of N-PDU"); PFREE (ll_data_ind); ll_data_ind = NULL; return; }else{ length = (ll_data_ind->sdu.l_buf >> 3) - header_len; } /* * Allocate new descriptor and copy sdu data. */ #ifdef _SNDCP_DTI_2_ MALLOC (local_desc, (USHORT)(sizeof(T_desc2) - 1 + length)); #else /*_SNDCP_DTI_2_*/ MALLOC (local_desc, (USHORT)(sizeof(T_desc) - 1 + length)); #endif /*_SNDCP_DTI_2_*/ /* * Fill descriptor control information. */ local_desc->next = (ULONG)NULL; local_desc->len = length; #ifdef _SNDCP_DTI_2_ local_desc->offset = 0; local_desc->size = local_desc->len; #endif /* * Add length of descriptor data to list length. */ cur_cia_decomp_ind->desc_list2.list_len += length; /* * Copy user data from SDU to descriptor. */ if (length>0) { memcpy (local_desc->buffer, &ll_data_ind->sdu.buf[sdu_index], length); } /* * Add desc to desc_list. */ #ifdef _SNDCP_DTI_2_ help = (T_desc2*)cur_cia_decomp_ind->desc_list2.first; #else /*_SNDCP_DTI_2_*/ help = (T_desc*)cur_cia_decomp_ind->desc_list2.first; #endif /*_SNDCP_DTI_2_*/ if (help == NULL) { cur_cia_decomp_ind->desc_list2.first = (ULONG)local_desc; } else { if (help->next == NULL) { help->next = (ULONG) local_desc; } else { while (help->next != NULL) { #ifdef _SNDCP_DTI_2_ help = (T_desc2*)help->next; #else /*_SNDCP_DTI_2_*/ help = (T_desc*)help->next; #endif /*_SNDCP_DTI_2_*/ } help->next = (ULONG)local_desc; } } /* * If this is the last segment, send it to this same service with a simulated * primitive. */ if ((sndcp_data->cur_seg_pos[nsapi] & SEG_POS_LAST) > 0) { /* * By now algo_type and comp_inst are not evaluated. */ cur_cia_decomp_ind->pdu_ref = sndcp_data->cur_pdu_ref[nsapi]; cia_cia_decomp_ind(cur_cia_decomp_ind); cur_cia_decomp_ind = NULL; /* * Reset the Current Segment Counter to zero, since we have received the * last segment */ sndcp_data->cur_segment_number[nsapi] = 0; } else { /* * Check the Current Segment Number whether we have received more than * SNDCP_MAX_SEGMENT_NUMBER segments or not. If we have received more than * SNDCP_MAX_SEGMENT_NUMBER segments in a single NPDU, then we will discard * the stored segments and also the remaining segments of this NPDU, till * we receive that last segment of this NPDU. * This has been done in order to encounter the PARTITION problem which * we will face if we keep on storing the segments in SNDCP. */ sndcp_data->cur_segment_number[nsapi] ++; if (sndcp_data-> cur_segment_number[nsapi] > SNDCP_MAX_SEGMENT_NUMBER) { TRACE_EVENT("Segment Number in Single NPDU exceeds max segment number"); /* Deleting the stored segments */ sig_mg_cia_delete_npdus(nsapi); /* Change the state to SDA_ACK_DISCARD */ sndcp_set_nsapi_rec_state(nsapi, SDA_ACK_DISCARD); } /* * Request next segment. */ sda_get_data_if_nec(ll_data_ind->sapi); } /* * Update global current CIA_DECOMP_IND */ sndcp_data->cia.cur_cia_decomp_ind[nsapi] = cur_cia_decomp_ind; /* * Free incoming prim. */ if (ll_data_ind != NULL) { PFREE (ll_data_ind); ll_data_ind = NULL; } } /* cia_sig_sda_cia_cia_decomp_req_sim() */ #endif /* CF_FAST_EXEC */ /*==== PUBLIC FUNCTIONS =====================================================*/ /* +------------------------------------------------------------------------------ | Function : sig_mg_cia_reset_ind +------------------------------------------------------------------------------ | Description : Handles the internal signal SIG_MG_CIA_RESET_IND | | Parameters : | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC GLOBAL void sig_mg_cia_reset_ind (void) { TRACE_ISIG( "sig_mg_cia_reset_ind" ); switch( GET_STATE(CIA) ) { case CIA_DEFAULT: sndcp_reset_xid_block(&sndcp_data->cia.cur_xid_block); break; default: TRACE_ERROR( "SIG_MG_CIA_RESET_IND unexpected" ); break; } } /* sig_mg_cia_reset_ind() */ #endif /* CF_FAST_EXEC */ /* +------------------------------------------------------------------------------ | Function : sig_su_cia_cia_comp_req +------------------------------------------------------------------------------ | Description : Handles the internal signal SIG_SU_CIA_CIA_COMP_REQ | This function makes a decision whether we are using data | compression in uplink direction and calls the according | function. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ defined(SNDCP_2to1) */ GLOBAL void sig_su_cia_cia_comp_req (T_SN_UNITDATA_REQ* sn_unitdata_req, USHORT npdu_number, UBYTE nsapi, UBYTE sapi ) { U8 direction = 0; BOOL compressed = FALSE; UBYTE packet_type = TYPE_IP; TRACE_ISIG( "sig_su_cia_cia_comp_req" ); switch( GET_STATE(CIA) ) { case CIA_DEFAULT: sndcp_is_nsapi_header_compressed(nsapi, &compressed); if (compressed) { #ifdef _SNDCP_DTI_2_ cia_header_comp(&sn_unitdata_req->desc_list2, &sn_unitdata_req->desc_list2, &packet_type); #else /*_SNDCP_DTI_2_*/ cia_header_comp(&sn_unitdata_req->desc_list, &sn_unitdata_req->desc_list, &packet_type); #endif /*_SNDCP_DTI_2_*/ } sndcp_is_nsapi_data_compressed(nsapi, &compressed); if (sndcp_data->cia.cur_xid_block.v42.is_set) { if (sndcp_data->cia.cur_xid_block.v42.p0_set) { direction = sndcp_data->cia.cur_xid_block.v42.p0; TRACE_EVENT_P1("dir: %d",direction); } } if (compressed && (direction & 0x01)) { /* datacompr. in uplink ? */ #ifdef TI_PS_FF_V42BIS cia_su_cci_comp_req(sn_unitdata_req, npdu_number, nsapi, sapi, packet_type); #else /* !TI_PS_FF_V42BIS */ TRACE_EVENT("INFO CIA: Data compression is not implemented yet!"); MFREE_PRIM(sn_unitdata_req); sn_unitdata_req = NULL; #endif /* TI_PS_FF_V42BIS */ } else { /* if (compressed) */ cia_su_cia_comp_req(sn_unitdata_req, npdu_number, nsapi, sapi, packet_type); } break; default: TRACE_ERROR( "SIG_SU_CIA_CIA_COMP_REQ unexpected" ); #ifdef _SNDCP_DTI_2_ MFREE_PRIM(sn_unitdata_req); #else /*_SNDCP_DTI_2_*/ PFREE_DESC(sn_unitdata_req); #endif /*_SNDCP_DTI_2_*/ break; } } /* sig_su_cia_cia_comp_req() */ /*#endif */ /* CF_FAST_EXEC || _SIMULATION_ || !REL99 || SNDCP_2to1 */ /* +------------------------------------------------------------------------------ | Function : sig_sua_cia_cia_comp_req +------------------------------------------------------------------------------ | Description : Handles the internal signal SIG_SUA_CIA_CIA_COMP_REQ | | Parameters : | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC GLOBAL void sig_sua_cia_cia_comp_req (T_SN_DATA_REQ* sn_data_req, UBYTE npdu_number, UBYTE nsapi, UBYTE sapi ) { BOOL compressed = FALSE; UBYTE packet_type = TYPE_IP; /* * define desc_list for comp header. Is initialized later. */ #ifdef _SNDCP_DTI_2_ T_desc_list2 dest_desc_list; #else /*_SNDCP_DTI_2_*/ T_desc_list dest_desc_list; #endif /*_SNDCP_DTI_2_*/ TRACE_ISIG( "sig_sua_cia_cia_comp_req" ); switch( GET_STATE(CIA) ) { case CIA_DEFAULT: sndcp_is_nsapi_header_compressed(nsapi, &compressed); if (compressed) { #ifdef _SNDCP_DTI_2_ cia_header_comp(&dest_desc_list, &sn_data_req->desc_list2, &packet_type); } else { dest_desc_list = sn_data_req->desc_list2; #else /*_SNDCP_DTI_2_*/ cia_header_comp(&dest_desc_list, &sn_data_req->desc_list, &packet_type); } else { dest_desc_list = sn_data_req->desc_list; #endif /*_SNDCP_DTI_2_*/ } sndcp_is_nsapi_data_compressed(nsapi, &compressed); if (compressed) { /* * The data compression routine shall be invoked here. */ TRACE_EVENT("INFO CIA: Data compression is not implemented yet!"); MFREE_PRIM(sn_data_req); sn_data_req = NULL; } else { /* if (compressed) */ cia_sua_cia_comp_req(dest_desc_list, npdu_number, nsapi, sapi, packet_type); } /* * free comp header */ if (compressed && dest_desc_list.first != 0) { MFREE(dest_desc_list.first); dest_desc_list.first = 0; } break; default: TRACE_ERROR( "SIG_SUA_CIA_CIA_COMP_REQ unexpected" ); #ifdef _SNDCP_DTI_2_ MFREE_PRIM(sn_data_req); #else /*_SNDCP_DTI_2_*/ PFREE_DESC(sn_data_req); #endif /*_SNDCP_DTI_2_*/ break; } } /* sig_sua_cia_cia_comp_req() */ #endif /* CF_FAST_EXEC */ /* +------------------------------------------------------------------------------ | Function : sig_mg_cia_delete_npdus +------------------------------------------------------------------------------ | Description : Handles the internal signal SIG_MG_CIA_DELETE_NPDUS | | Parameters : nsapi | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC GLOBAL void sig_mg_cia_delete_npdus (UBYTE nsapi) { TRACE_ISIG( "sig_mg_cia_delete_npdus" ); switch( GET_STATE(CIA) ) { case CIA_DEFAULT: if (sndcp_data->cia.cur_cia_decomp_ind[nsapi] != NULL) { #ifdef SNDCP_TRACE_ALL sndcp_data->cia.cia_decomp_ind_number[nsapi] --; TRACE_EVENT_P1("number of cia_decomp_ind: % d", sndcp_data->cia.cia_decomp_ind_number[nsapi]); #endif /* SNDCP_TRACE_ALL */ /* * Currently assembled pdu is for given nsapi. */ MFREE_PRIM(sndcp_data->cia.cur_cia_decomp_ind[nsapi]); sndcp_data->cia.cur_cia_decomp_ind[nsapi] = NULL; } break; default: TRACE_ERROR( "SIG_MG_CIA_DELETE_XID unexpected" ); break; } } /* SIG_MG_CIA_DELETE_NPDUS() */ #endif /* CF_FAST_EXEC */ /* +------------------------------------------------------------------------------ | Function : sig_mg_cia_new_xid +------------------------------------------------------------------------------ | Description : Handles the internal signal SIG_MG_CIA_NEW_XID | | Parameters : new T_XID_BLOCK | +------------------------------------------------------------------------------ */ #ifndef CF_FAST_EXEC GLOBAL void sig_mg_cia_new_xid (T_XID_BLOCK* new_xid) { #ifdef TI_PS_FF_V42BIS T_XID_BLOCK* old_xid; U8 p0 = SNDCP_V42_DEFAULT_DIRECTION; U16 p1 = SNDCP_V42_DEFAULT_P1; U8 p2 = SNDCP_V42_DEFAULT_P2; old_xid = &(sndcp_data->cia.cur_xid_block); #endif TRACE_ISIG( "sig_mg_cia_new_xid" ); switch( GET_STATE(CIA) ) { case CIA_DEFAULT: if (new_xid->vj.is_set) { if (new_xid->vj.s0_m_1_set) { cia_compress_init((UBYTE)(new_xid->vj.s0_m_1)); } } #ifdef TI_PS_FF_V42BIS if (new_xid->v42.is_set) { /* block is valid */ if (new_xid->v42.p0_set) { p0 = new_xid->v42.p0; /* what have we to do, if p0 is not set? */ } if (new_xid->v42.p1_set) { p1 = new_xid->v42.p1; /* what have we to do, if p1 is not set? */ } if (new_xid->v42.p2_set) { p2 = new_xid->v42.p2; /* what have we to do, if p2 is not set? */ } if (new_xid->v42.nsapis_set && new_xid->v42.nsapis == 0) { /* no applicable NSAPI * turn off data compression in either direction */ if (old_xid->v42.p0_set && old_xid->v42.p0 & 0x1) /* uplink */ { TRACE_EVENT_P1("1 enc dico:%08x",sndcp_data->cia.enc); v42b_deinit(sndcp_data->cia.enc); MFREE(sndcp_data->cia.enc); TRACE_EVENT("uplink deinit"); } if (old_xid->v42.p0_set && old_xid->v42.p0 & 0x2) /* downlink */ { TRACE_EVENT_P1("1 dec dico:%08x",sndcp_data->cia.dec); v42b_deinit(sndcp_data->cia.dec); MFREE(sndcp_data->cia.dec); TRACE_EVENT("downlink deinit"); } } else if (old_xid->v42.is_set) { /* currently we have a valid xid-block for data compression * we have to check the parameters */ /* we have to check the parameters */ if (old_xid->v42.p0 != p0 || old_xid->v42.p1 != p1 || old_xid->v42.p2 != p2) { /* parameters have changed */ if (old_xid->v42.p0_set && old_xid->v42.p0 & 0x1) /* uplink */ { TRACE_EVENT_P1("2 enc dico:%08x",sndcp_data->cia.enc); v42b_deinit(sndcp_data->cia.enc); MFREE(sndcp_data->cia.enc); TRACE_EVENT("uplink deinit"); } if (old_xid->v42.p0_set && old_xid->v42.p0 & 0x2) /* downlink */ { TRACE_EVENT_P1("2 dec dico:%08x",sndcp_data->cia.dec); v42b_deinit(sndcp_data->cia.dec); MFREE(sndcp_data->cia.dec); TRACE_EVENT("uplink deinit"); } /* we have to init with new parameters */ if (p0 & 0x1)/* uplink */ { TRACE_EVENT_P1("DICO_SIZE:%d",sizeof(T_V42B_DICO)); MALLOC(sndcp_data->cia.enc, sizeof(T_V42B_DICO)); TRACE_EVENT_P1("enc dico:%08x",sndcp_data->cia.enc); v42b_init(sndcp_data->cia.enc, p1, p2, 50, BANK_SIZE_512); TRACE_EVENT("uplink init"); } if (p0 & 0x2)/* downlink */ { TRACE_EVENT_P1("DICO_SIZE:%d",sizeof(T_V42B_DICO)); MALLOC(sndcp_data->cia.dec, sizeof(T_V42B_DICO)); v42b_init(sndcp_data->cia.dec, p1, p2, 0, BANK_SIZE_512); TRACE_EVENT_P1("dec dico:%08x",sndcp_data->cia.dec); TRACE_EVENT("downlink init"); } } } else { /* currently we have no valid xid-block for data comprssion */ if (p0 & 0x1)/* uplink */ { TRACE_EVENT_P1("DICO_SIZE:%d",sizeof(T_V42B_DICO)); MALLOC(sndcp_data->cia.enc, sizeof(T_V42B_DICO)); TRACE_EVENT_P1("enc dico:%08x",sndcp_data->cia.enc); v42b_init(sndcp_data->cia.enc, p1, p2, 50, BANK_SIZE_512); TRACE_EVENT("uplink init"); } if (p0 & 0x2)/* downlink */ { TRACE_EVENT_P1("DICO_SIZE:%d",sizeof(T_V42B_DICO)); MALLOC(sndcp_data->cia.dec, sizeof(T_V42B_DICO)); TRACE_EVENT_P1("dec dico:%08x",sndcp_data->cia.dec); v42b_init(sndcp_data->cia.dec, p1, p2, 0, BANK_SIZE_512); TRACE_EVENT("downlink init"); } } } else { if (old_xid->v42.is_set && old_xid->v42.nsapis_set && old_xid->v42.nsapis != 0) { /* we have no XID with V42 set */ if (old_xid->v42.p0_set && old_xid->v42.p0 & 0x1) /* uplink */ { TRACE_EVENT_P1("3 enc dico:%08x",sndcp_data->cia.enc); v42b_deinit(sndcp_data->cia.enc); MFREE(sndcp_data->cia.enc); TRACE_EVENT("uplink deinit"); } if (old_xid->v42.p0_set && old_xid->v42.p0 & 0x2) /* downlink */ { TRACE_EVENT_P1("3 dec dico:%08x",sndcp_data->cia.dec); v42b_deinit(sndcp_data->cia.dec); MFREE(sndcp_data->cia.dec); TRACE_EVENT("downlink deinit"); } } } #endif /* TI_PS_FF_V42BIS */ sndcp_data->cia.cur_xid_block = *new_xid; break; default: TRACE_ERROR( "SIG_MG_CIA_NEW_XID unexpected" ); break; } } /* SIG_MG_CIA_NEW_XID() */ #endif /* CF_FAST_EXEC */ /* +------------------------------------------------------------------------------ | Function : sig_sd_cia_cia_decomp_req +------------------------------------------------------------------------------ | Description : Handles the internal signal SIG_SD_CIA_TRANSFER_REQ | This function mekes a decision whether we are using data | compression in downlink direction and calls the according | function. | | Parameters : | +------------------------------------------------------------------------------ */ /*#if defined(CF_FAST_EXEC) || defined(_SIMULATION_) || \ defined(SNDCP_2to1) */ GLOBAL void sig_sd_cia_cia_decomp_req (T_LL_UNITDATA_IND* ll_unitdata_ind)/*UBYTE dcomp, T_pdu_ref pdu_ref, USHORT cur_seg_pos, T_LL_UNITDATA_IND* ll_unitdata_ind )*/ { #ifdef TI_PS_FF_V42BIS U8 direction = 0; U8 nsapi; #endif /* TI_PS_FF_V42BIS */ TRACE_ISIG( "sig_sd_cia_cia_decomp_req" ); #ifdef TI_PS_FF_V42BIS nsapi = (ll_unitdata_ind->sdu.buf[(ll_unitdata_ind->sdu.o_buf / 8)]) & 0xf; #endif /* TI_PS_FF_V42BIS */ switch( GET_STATE(CIA) ) { case CIA_DEFAULT: #ifdef TI_PS_FF_V42BIS if (sndcp_data->cia.cur_xid_block.v42.is_set) { if (sndcp_data->cia.cur_xid_block.v42.p0_set) { direction = sndcp_data->cia.cur_xid_block.v42.p0; TRACE_EVENT_P1("dir: %d",direction); } } /* * Is dcomp in sdu equal to dcomp in cur_xid_block and downlink? */ TRACE_EVENT_P1("our dcomp value: %d", sndcp_data->cia.cur_xid_block.v42.dcomp); TRACE_EVENT_P1("receipt dcomp value: %d", sndcp_data->cur_dcomp[nsapi]); if (sndcp_data->cur_dcomp[nsapi] == sndcp_data->cia.cur_xid_block.v42.dcomp && (direction & 0x2)) { /* * Compression used */ cia_sd_cci_decomp_req(/*pdu_ref, cur_seg_pos, */ll_unitdata_ind); } else { /* * No compression used, request will not be sent to CCI, but handled * in cia service. */ cia_sd_cia_decomp_req (/*pdu_ref, cur_seg_pos, */ll_unitdata_ind); } #else /* ! TI_PS_FF_V42BIS */ cia_sd_cia_decomp_req (/*pdu_ref, cur_seg_pos, */ll_unitdata_ind); #endif /* TI_PS_FF_V42BIS */ break; default: TRACE_ERROR( "SIG_SD_CIA_TRANSFER_REQ unexpected" ); break; } } /* sig_sd_cia_cia_decomp_req() */ /*#endif */