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Merge pull request #174 from adamdunkels/feature-net-improvements 

Improvements to the core/net/ code
This commit is contained in:
Nicolas Tsiftes 2013-03-18 17:12:12 -07:00
parent 6a07172662 3efa84ecc8
commit 7f2a842b71
6 changed files with 118 additions and 28 deletions
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16
core/net/mac/frame802154.c
View File

@ -153,7 +153,7 @@ field_len(frame802154_t *p, field_length_t *flen)
*
* \return The length of the frame header.
*/
uint8_t
int
frame802154_hdrlen(frame802154_t *p)
{
field_length_t flen;
@ -176,8 +176,8 @@ frame802154_hdrlen(frame802154_t *p)
* \return The length of the frame header or 0 if there was
* insufficient space in the buffer for the frame headers.
*/
uint8_t
frame802154_create(frame802154_t *p, uint8_t *buf, uint8_t buf_len)
int
frame802154_create(frame802154_t *p, uint8_t *buf, int buf_len)
{
int c;
field_length_t flen;
@ -236,7 +236,7 @@ frame802154_create(frame802154_t *p, uint8_t *buf, uint8_t buf_len)
/* pos += flen.aux_sec_len; */
}
return pos;
return (int)pos;
}
/*----------------------------------------------------------------------------*/
/**
@ -248,12 +248,12 @@ frame802154_create(frame802154_t *p, uint8_t *buf, uint8_t buf_len)
* \param len The size of the input data
* \param pf The frame802154_t struct to store the parsed frame information.
*/
uint8_t
frame802154_parse(uint8_t *data, uint8_t len, frame802154_t *pf)
int
frame802154_parse(uint8_t *data, int len, frame802154_t *pf)
{
uint8_t *p;
frame802154_fcf_t fcf;
uint8_t c;
int c;
if(len < 3) {
return 0;
@ -345,7 +345,7 @@ frame802154_parse(uint8_t *data, uint8_t len, frame802154_t *pf)
/* header length */
c = p - data;
/* payload length */
pf->payload_len = len - c;
pf->payload_len = (uint8_t)(0xff & (len - c));
/* payload */
pf->payload = p;

6
core/net/mac/frame802154.h
View File

@ -160,9 +160,9 @@ typedef struct {
/* Prototypes */
uint8_t frame802154_hdrlen(frame802154_t *p);
uint8_t frame802154_create(frame802154_t *p, uint8_t *buf, uint8_t buf_len);
uint8_t frame802154_parse(uint8_t *data, uint8_t length, frame802154_t *pf);
int frame802154_hdrlen(frame802154_t *p);
int frame802154_create(frame802154_t *p, uint8_t *buf, int buf_len);
int frame802154_parse(uint8_t *data, int length, frame802154_t *pf);
/** @} */
#endif /* FRAME_802154_H */

4
core/net/mac/framer-802154.c
View File

@ -90,7 +90,7 @@ static int
create(void)
{
frame802154_t params;
uint8_t len;
int len;
/* init to zeros */
memset(&params, 0, sizeof(params));
@ -174,7 +174,7 @@ create(void)
PRINTF("15.4-OUT: %2X", params.fcf.frame_type);
PRINTADDR(params.dest_addr.u8);
PRINTF("%u %u (%u)\n", len, packetbuf_datalen(), packetbuf_totlen());
PRINTF("%d %u (%u)\n", len, packetbuf_datalen(), packetbuf_totlen());
return len;
} else {

54
core/net/mac/nullrdc.c
View File

@ -42,6 +42,7 @@
#include "net/packetbuf.h"
#include "net/queuebuf.h"
#include "net/netstack.h"
#include "net/rime/rimestats.h"
#include <string.h>
#define DEBUG 0
@ -78,11 +79,30 @@
#include "sys/rtimer.h"
#include "dev/watchdog.h"
#ifdef NULLRDC_CONF_ACK_WAIT_TIME
#define ACK_WAIT_TIME NULLRDC_CONF_ACK_WAIT_TIME
#else /* NULLRDC_CONF_ACK_WAIT_TIME */
#define ACK_WAIT_TIME RTIMER_SECOND / 2500
#endif /* NULLRDC_CONF_ACK_WAIT_TIME */
#ifdef NULLRDC_CONF_AFTER_ACK_DETECTED_WAIT_TIME
#define AFTER_ACK_DETECTED_WAIT_TIME NULLRDC_CONF_AFTER_ACK_DETECTED_WAIT_TIME
#else /* NULLRDC_CONF_AFTER_ACK_DETECTED_WAIT_TIME */
#define AFTER_ACK_DETECTED_WAIT_TIME RTIMER_SECOND / 1500
#define ACK_LEN 3
#endif /* NULLRDC_CONF_AFTER_ACK_DETECTED_WAIT_TIME */
#endif /* NULLRDC_802154_AUTOACK */
#ifdef NULLRDC_CONF_SEND_802154_ACK
#define NULLRDC_SEND_802154_ACK NULLRDC_CONF_SEND_802154_ACK
#else /* NULLRDC_CONF_SEND_802154_ACK */
#define NULLRDC_SEND_802154_ACK 0
#endif /* NULLRDC_CONF_SEND_802154_ACK */
#if NULLRDC_SEND_802154_ACK
#include "net/mac/frame802154.h"
#endif /* NULLRDC_SEND_802154_ACK */
#define ACK_LEN 3
#if NULLRDC_802154_AUTOACK || NULLRDC_802154_AUTOACK_HW
struct seqno {
rimeaddr_t sender;
@ -92,7 +112,7 @@ struct seqno {
#ifdef NETSTACK_CONF_MAC_SEQNO_HISTORY
#define MAX_SEQNOS NETSTACK_CONF_MAC_SEQNO_HISTORY
#else /* NETSTACK_CONF_MAC_SEQNO_HISTORY */
#define MAX_SEQNOS 16
#define MAX_SEQNOS 8
#endif /* NETSTACK_CONF_MAC_SEQNO_HISTORY */
static struct seqno received_seqnos[MAX_SEQNOS];
@ -135,8 +155,11 @@ send_packet(mac_callback_t sent, void *ptr)
already received a packet that needs to be read before
sending with auto ack. */
ret = MAC_TX_COLLISION;
} else {
if(!is_broadcast) {
RIMESTATS_ADD(reliabletx);
}
switch(NETSTACK_RADIO.transmit(packetbuf_totlen())) {
case RADIO_TX_OK:
if(is_broadcast) {
@ -165,13 +188,16 @@ send_packet(mac_callback_t sent, void *ptr)
len = NETSTACK_RADIO.read(ackbuf, ACK_LEN);
if(len == ACK_LEN && ackbuf[2] == dsn) {
/* Ack received */
RIMESTATS_ADD(ackrx);
ret = MAC_TX_OK;
} else {
/* Not an ack or ack not for us: collision */
ret = MAC_TX_COLLISION;
}
}
}
} else {
PRINTF("nullrdc tx noack\n");
}
}
break;
case RADIO_TX_COLLISION:
@ -225,7 +251,7 @@ packet_input(void)
#if NULLRDC_802154_AUTOACK
if(packetbuf_datalen() == ACK_LEN) {
/* Ignore ack packets */
/* PRINTF("nullrdc: ignored ack\n"); */
PRINTF("nullrdc: ignored ack\n");
} else
#endif /* NULLRDC_802154_AUTOACK */
if(NETSTACK_FRAMER.parse() < 0) {
@ -260,6 +286,24 @@ packet_input(void)
rimeaddr_copy(&received_seqnos[0].sender,
packetbuf_addr(PACKETBUF_ADDR_SENDER));
#endif /* NULLRDC_802154_AUTOACK */
#if NULLRDC_SEND_802154_ACK
{
frame802154_t info154;
frame802154_parse(original_dataptr, original_datalen, &info154);
if(info154.fcf.frame_type == FRAME802154_DATAFRAME &&
info154.fcf.ack_required != 0 &&
rimeaddr_cmp((rimeaddr_t *)&info154.dest_addr,
&rimeaddr_node_addr)) {
uint8_t ackdata[ACK_LEN] = {0, 0, 0};
ackdata[0] = FRAME802154_ACKFRAME;
ackdata[1] = 0;
ackdata[2] = info154.seq;
NETSTACK_RADIO.send(ackdata, ACK_LEN);
}
}
#endif /* NULLRDC_SEND_ACK */
NETSTACK_MAC.input();
}
}

20
core/net/rime/collect.c
View File

@ -641,8 +641,10 @@ send_queued_packet(struct collect_conn *c)
ctimer_set(&c->transmit_after_scan_timer, ANNOUNCEMENT_SCAN_TIME,
send_queued_packet, c);
#else /* COLLECT_CONF_WITH_LISTEN */
announcement_set_value(&c->announcement, RTMETRIC_MAX);
announcement_bump(&c->announcement);
if(c->is_router) {
announcement_set_value(&c->announcement, RTMETRIC_MAX);
announcement_bump(&c->announcement);
}
#endif /* COLLECT_CONF_WITH_LISTEN */
#endif /* COLLECT_ANNOUNCEMENTS */
}
@ -1256,7 +1258,9 @@ received_announcement(struct announcement *a, const rimeaddr_t *from,
#if ! COLLECT_CONF_WITH_LISTEN
if(value == RTMETRIC_MAX &&
tc->rtmetric != RTMETRIC_MAX) {
announcement_bump(&tc->announcement);
if(tc->is_router) {
announcement_bump(&tc->announcement);
}
}
#endif /* COLLECT_CONF_WITH_LISTEN */
}
@ -1302,7 +1306,9 @@ collect_open(struct collect_conn *tc, uint16_t channels,
announcement_register(&tc->announcement, channels,
received_announcement);
#if ! COLLECT_CONF_WITH_LISTEN
announcement_set_value(&tc->announcement, RTMETRIC_MAX);
if(tc->is_router) {
announcement_set_value(&tc->announcement, RTMETRIC_MAX);
}
#endif /* COLLECT_CONF_WITH_LISTEN */
#endif /* !COLLECT_ANNOUNCEMENTS */
@ -1470,8 +1476,10 @@ collect_send(struct collect_conn *tc, int rexmits)
ctimer_set(&tc->transmit_after_scan_timer, ANNOUNCEMENT_SCAN_TIME,
send_queued_packet, tc);
#else /* COLLECT_CONF_WITH_LISTEN */
announcement_set_value(&tc->announcement, RTMETRIC_MAX);
announcement_bump(&tc->announcement);
if(tc->is_router) {
announcement_set_value(&tc->announcement, RTMETRIC_MAX);
announcement_bump(&tc->announcement);
}
#endif /* COLLECT_CONF_WITH_LISTEN */
#endif /* COLLECT_ANNOUNCEMENTS */

46
core/net/sicslowpan.c
View File

@ -163,7 +163,11 @@ void uip_log(char *msg);
/** \brief Size of the 802.15.4 payload (127byte - 25 for MAC header) */
#ifdef SICSLOWPAN_CONF_MAC_MAX_PAYLOAD
#define MAC_MAX_PAYLOAD SICSLOWPAN_CONF_MAC_MAX_PAYLOAD
#else /* SICSLOWPAN_CONF_MAC_MAX_PAYLOAD */
#define MAC_MAX_PAYLOAD 102
#endif /* SICSLOWPAN_CONF_MAC_MAX_PAYLOAD */
/** \brief Some MAC layers need a minimum payload, which is
@ -1360,6 +1364,8 @@ send_packet(rimeaddr_t *dest)
static uint8_t
output(uip_lladdr_t *localdest)
{
int framer_hdrlen;
/* The MAC address of the destination of the packet */
rimeaddr_t dest;
@ -1427,7 +1433,24 @@ output(uip_lladdr_t *localdest)
}
PRINTFO("sicslowpan output: header of len %d\n", rime_hdr_len);
if(uip_len - uncomp_hdr_len > MAC_MAX_PAYLOAD - rime_hdr_len) {
/* Calculate NETSTACK_FRAMER's header length, that will be added in the NETSTACK_RDC.
* We calculate it here only to make a better decision of whether the outgoing packet
* needs to be fragmented or not. */
#define USE_FRAMER_HDRLEN 1
#if USE_FRAMER_HDRLEN
packetbuf_clear();
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, &dest);
framer_hdrlen = NETSTACK_FRAMER.create();
if(framer_hdrlen < 0) {
/* Framing failed, we assume the maximum header length */
framer_hdrlen = 21;
}
packetbuf_clear();
#else /* USE_FRAMER_HDRLEN */
framer_hdrlen = 21;
#endif /* USE_FRAMER_HDRLEN */
if((int)uip_len - (int)uncomp_hdr_len > (int)MAC_MAX_PAYLOAD - framer_hdrlen - (int)rime_hdr_len) {
#if SICSLOWPAN_CONF_FRAG
struct queuebuf *q;
/*
@ -1439,7 +1462,7 @@ output(uip_lladdr_t *localdest)
*/
PRINTFO("Fragmentation sending packet len %d\n", uip_len);
/* Create 1st Fragment */
PRINTFO("sicslowpan output: 1rst fragment ");
@ -1460,7 +1483,7 @@ output(uip_lladdr_t *localdest)
/* Copy payload and send */
rime_hdr_len += SICSLOWPAN_FRAG1_HDR_LEN;
rime_payload_len = (MAC_MAX_PAYLOAD - rime_hdr_len) & 0xf8;
rime_payload_len = (MAC_MAX_PAYLOAD - framer_hdrlen - rime_hdr_len) & 0xf8;
PRINTFO("(len %d, tag %d)\n", rime_payload_len, my_tag);
memcpy(rime_ptr + rime_hdr_len,
(uint8_t *)UIP_IP_BUF + uncomp_hdr_len, rime_payload_len);
@ -1496,7 +1519,7 @@ output(uip_lladdr_t *localdest)
/* uip_htons((SICSLOWPAN_DISPATCH_FRAGN << 8) | uip_len); */
SET16(RIME_FRAG_PTR, RIME_FRAG_DISPATCH_SIZE,
((SICSLOWPAN_DISPATCH_FRAGN << 8) | uip_len));
rime_payload_len = (MAC_MAX_PAYLOAD - rime_hdr_len) & 0xf8;
rime_payload_len = (MAC_MAX_PAYLOAD - framer_hdrlen - rime_hdr_len) & 0xf8;
while(processed_ip_out_len < uip_len) {
PRINTFO("sicslowpan output: fragment ");
RIME_FRAG_PTR[RIME_FRAG_OFFSET] = processed_ip_out_len >> 3;
@ -1535,6 +1558,7 @@ output(uip_lladdr_t *localdest)
return 0;
#endif /* SICSLOWPAN_CONF_FRAG */
} else {
/*
* The packet does not need to be fragmented
* copy "payload" and send
@ -1714,6 +1738,20 @@ input(void)
return;
}
rime_payload_len = packetbuf_datalen() - rime_hdr_len;
/* Sanity-check size of incoming packet to avoid buffer overflow */
{
int req_size = UIP_LLH_LEN + uncomp_hdr_len + (uint16_t)(frag_offset << 3)
+ rime_payload_len;
if(req_size > sizeof(sicslowpan_buf)) {
PRINTF(
"SICSLOWPAN: packet dropped, minimum required SICSLOWPAN_IP_BUF size: %d+%d+%d+%d=%d (current size: %d)\n",
UIP_LLH_LEN, uncomp_hdr_len, (uint16_t)(frag_offset << 3),
rime_payload_len, req_size, sizeof(sicslowpan_buf));
return;
}
}
memcpy((uint8_t *)SICSLOWPAN_IP_BUF + uncomp_hdr_len + (uint16_t)(frag_offset << 3), rime_ptr + rime_hdr_len, rime_payload_len);
/* update processed_ip_in_len if fragment, sicslowpan_len otherwise */