void IPCP_recv
(
PCB_PTR pcb,
/* [IN] received packet */
pointer handle
/* [IN] IPCP configuration */
)
{ /* Body */
IP_IF_PTR if_ptr = handle;
RTCSPCB_PTR packet;
uint_32 error;
IF_IPIF_STATS_ENABLED(if_ptr->STATS.COMMON.ST_RX_TOTAL++);
IF_IPIF_STATS_ENABLED(if_ptr->STATS.ST_RX_OCTETS += pcb->FRAG[0].LENGTH);
IF_IPIF_STATS_ENABLED(if_ptr->STATS.ST_RX_UNICAST++);
packet = RTCSPCB_alloc_recv(pcb);
if (packet == NULL) {
IF_IPIF_STATS_ENABLED(if_ptr->STATS.COMMON.ST_RX_MISSED++);
PCB_free(pcb);
return;
} /* Endif */
//RTCSLOG_PCB_ALLOC(packet);
error = RTCSPCB_next(packet, 2);
if (error) {
IF_IPIF_STATS_ENABLED(if_ptr->STATS.COMMON.ST_RX_ERRORS++);
IF_IPIF_STATS_ENABLED(RTCS_seterror(&if_ptr->STATS.ERR_RX, error, (uint_32)packet));
RTCSLOG_PCB_FREE(packet, error);
RTCSPCB_free(packet);
return;
} /* Endif */
RTCSLOG_PCB_READ(packet, RTCS_LOGCTRL_IFTYPE(IPIFTYPE_PPP), 0);
packet->TYPE = RTCSPCB_TYPE_ONLYCAST;
packet->IFSRC = if_ptr;
if (!RTCSCMD_service(packet, IP_service)) {
IF_IPIF_STATS_ENABLED(if_ptr->STATS.COMMON.ST_RX_MISSED++);
RTCSLOG_PCB_FREE(packet, RTCS_OK);
RTCSPCB_free(packet);
} /* Endif */
} /* Endbody */
static RTCSPCB_PTR IPREASM_reasm_dgram
(
IP_DGRAM_PTR dgram /* [IN] the dgram descriptor */
)
{ /* Body */
RTCSPCB_PTR outpcb;
PCB_PTR bpcb;
PCB_FRAGMENT *pcb_frag_ptr;
unsigned char *data;
uint32_t iphlen = (mqx_ntohc(dgram->header.IP4.IPH.VERSLEN) & 0xF) << 2;
uint32_t ip_totlen = iphlen + dgram->TOTLEN;
bpcb = RTCS_mem_alloc_system(sizeof(PCB) + sizeof(PCB_FRAGMENT) + ip_totlen);
if (!bpcb) {
return NULL;
} /* Endif */
data = (unsigned char *)bpcb + sizeof(PCB) + sizeof(PCB_FRAGMENT);
bpcb->FREE = (void(_CODE_PTR_)(PCB_PTR))_mem_free;
bpcb->PRIVATE = NULL;
pcb_frag_ptr = bpcb->FRAG;
pcb_frag_ptr->LENGTH = ip_totlen;
pcb_frag_ptr->FRAGMENT = data;
pcb_frag_ptr++;
pcb_frag_ptr->LENGTH = 0;
pcb_frag_ptr->FRAGMENT = NULL;
/* Copy the IP header with options */
mqx_htons(dgram->header.IP4.IPH.FRAGMENT, 0);
_mem_copy(&dgram->header.IP4.IPH, data, iphlen);
data += iphlen;
/*
** At this point, we really should update the LENGTH
** and CHECKSUM fields in the new IP header, but we
** don't actually need to, because this datagram is
** going straight to IPLOCAL_service, which doesn't
** check these things.
*/
/* Copy the stored data in the new packet */
IPREASM_blk_read_all(dgram, data, dgram->TOTLEN);
/* Put it in an RTCSPCB */
outpcb = RTCSPCB_alloc_recv(bpcb);
if (outpcb == NULL) {
PCB_free(bpcb);
return NULL;
} /* Endif */
//RTCSLOG_PCB_ALLOC(bpcb);
outpcb->IFSRC = dgram->IFSRC;
outpcb->TYPE = dgram->TYPE;
outpcb->LINK_OPTIONS.RX = dgram->LINKOPT;
RTCSPCB_DATA_NETWORK(outpcb) = RTCSPCB_DATA(outpcb);
RTCSPCB_SET_TRANS_PROTL(outpcb, dgram->header.IP4.PROTO);
RTCSPCB_SET_TRANS_DELTA(outpcb, iphlen);
/* Delete the local structure */
IPREASM_del_dgram(dgram);
return outpcb;
} /* Endbody */
