FreeCalypso > hg > fc-magnetite
view src/g23m-gprs/sndcp/sndcp_cias.c @ 205:1b9df37ab303
src/condat2/frame/config/gprscomp.c: support UPM with -DFF_UPM
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 14 Oct 2016 06:41:54 +0000 |
| parents | 219afcfc6250 |
| children |
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/* +----------------------------------------------------------------------------- | 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 */