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Merge pull request #432 from adamdunkels/push/154-len

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Allow the 802.15.4/6lowpan code to operate on packets larger than 256 bytes
This commit is contained in:
Nicolas Tsiftes 2013-11-20 05:23:26 -08:00
parent 263e212427 f26e35cffa
commit 0e24fb0bc0
3 changed files with 11 additions and 9 deletions
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2
core/net/mac/frame802154.c
View file

@ -345,7 +345,7 @@ frame802154_parse(uint8_t *data, int len, frame802154_t *pf)
/* header length */
c = p - data;
/* payload length */
pf->payload_len = (uint8_t)(0xff & (len - c));
pf->payload_len = (len - c);
/* payload */
pf->payload = p;

2
core/net/mac/frame802154.h
View file

@ -155,7 +155,7 @@ typedef struct {
uint8_t src_addr[8]; /**< Source address */
frame802154_aux_hdr_t aux_hdr; /**< Aux security header */
uint8_t *payload; /**< Pointer to 802.15.4 frame payload */
uint8_t payload_len; /**< Length of payload field */
int payload_len; /**< Length of payload field */
} frame802154_t;
/* Prototypes */

16
core/net/sicslowpan.c
View file

@ -200,7 +200,7 @@ static uint8_t rime_hdr_len;
* headers (can be the IP payload if the IP header only is compressed
* or the UDP payload if the UDP header is also compressed)
*/
static uint8_t rime_payload_len;
static int rime_payload_len;
/**
* uncomp_hdr_len is the length of the headers before compression (if HC2
@ -999,9 +999,10 @@ uncompress_hdr_hc06(uint16_t ip_len)
/* IP length field. */
if(ip_len == 0) {
int len = packetbuf_datalen() - rime_hdr_len + uncomp_hdr_len - UIP_IPH_LEN;
/* This is not a fragmented packet */
SICSLOWPAN_IP_BUF->len[0] = 0;
SICSLOWPAN_IP_BUF->len[1] = packetbuf_datalen() - rime_hdr_len + uncomp_hdr_len - UIP_IPH_LEN;
SICSLOWPAN_IP_BUF->len[0] = len >> 8;
SICSLOWPAN_IP_BUF->len[1] = len & 0x00FF;
} else {
/* This is a 1st fragment */
SICSLOWPAN_IP_BUF->len[0] = (ip_len - UIP_IPH_LEN) >> 8;
@ -1246,9 +1247,10 @@ uncompress_hdr_hc1(uint16_t ip_len)
/* IP length field. */
if(ip_len == 0) {
int len = packetbuf_datalen() - rime_hdr_len + uncomp_hdr_len - UIP_IPH_LEN;
/* This is not a fragmented packet */
SICSLOWPAN_IP_BUF->len[0] = 0;
SICSLOWPAN_IP_BUF->len[1] = packetbuf_datalen() - rime_hdr_len + uncomp_hdr_len - UIP_IPH_LEN;
SICSLOWPAN_IP_BUF->len[0] = len >> 8;
SICSLOWPAN_IP_BUF->len[1] = len & 0x00FF;
} else {
/* This is a 1st fragment */
SICSLOWPAN_IP_BUF->len[0] = (ip_len - UIP_IPH_LEN) >> 8;
@ -1480,7 +1482,7 @@ output(const uip_lladdr_t *localdest)
/* Copy payload and send */
rime_hdr_len += SICSLOWPAN_FRAG1_HDR_LEN;
rime_payload_len = (MAC_MAX_PAYLOAD - framer_hdrlen - rime_hdr_len) & 0xf8;
rime_payload_len = (MAC_MAX_PAYLOAD - framer_hdrlen - rime_hdr_len) & 0xfffffff8;
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);
@ -1516,7 +1518,7 @@ output(const 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 - framer_hdrlen - rime_hdr_len) & 0xf8;
rime_payload_len = (MAC_MAX_PAYLOAD - framer_hdrlen - rime_hdr_len) & 0xfffffff8;
while(processed_ip_out_len < uip_len) {
PRINTFO("sicslowpan output: fragment ");
RIME_FRAG_PTR[RIME_FRAG_OFFSET] = processed_ip_out_len >> 3;