bool ieee802154_validate_frame(uint8_t *buf, uint8_t length,
struct ieee802154_mpdu *mpdu)
{
uint8_t *p_buf;
if (length > IEEE802154_MTU || length < IEEE802154_MIN_LENGTH) {
NET_DBG("Wrong packet length: %d", length);
return false;
}
mpdu->mhr.fs = validate_fc_seq(buf, &p_buf);
if (!mpdu->mhr.fs) {
return false;
}
/* ToDo: Support later version's frame types */
if (mpdu->mhr.fs->fc.frame_type > IEEE802154_FRAME_TYPE_MAC_COMMAND) {
return false;
}
mpdu->mhr.dst_addr = validate_addr(p_buf, &p_buf,
mpdu->mhr.fs->fc.dst_addr_mode,
false);
mpdu->mhr.src_addr = validate_addr(p_buf, &p_buf,
mpdu->mhr.fs->fc.src_addr_mode,
(mpdu->mhr.fs->fc.pan_id_comp));
return validate_payload_and_mfr(mpdu, buf, p_buf, length);
}
bool ieee802154_validate_frame(u8_t *buf, u8_t length,
struct ieee802154_mpdu *mpdu)
{
u8_t *p_buf = NULL;
if (length > IEEE802154_MTU || length < IEEE802154_MIN_LENGTH) {
NET_DBG("Wrong packet length: %d", length);
return false;
}
mpdu->mhr.fs = validate_fc_seq(buf, &p_buf);
if (!mpdu->mhr.fs) {
return false;
}
/* ToDo: Support later version's frame types */
if (mpdu->mhr.fs->fc.frame_type > IEEE802154_FRAME_TYPE_MAC_COMMAND) {
return false;
}
mpdu->mhr.dst_addr = validate_addr(p_buf, &p_buf,
mpdu->mhr.fs->fc.dst_addr_mode,
false);
mpdu->mhr.src_addr = validate_addr(p_buf, &p_buf,
mpdu->mhr.fs->fc.src_addr_mode,
(mpdu->mhr.fs->fc.pan_id_comp));
#ifdef CONFIG_NET_L2_IEEE802154_SECURITY
if (mpdu->mhr.fs->fc.security_enabled) {
mpdu->mhr.aux_sec =
ieee802154_validate_aux_security_hdr(p_buf, &p_buf);
if (!mpdu->mhr.aux_sec) {
return false;
}
}
#endif
return validate_payload_and_mfr(mpdu, buf, p_buf, length);
}
/*
* Function: get_command
*
* Description: Parses input file and return valid commands and
* and or address to global variables. validates data
* before filling globals
*
*
* Inputs: filepointer to infile
*
* Outputs: None
*/
void get_command(FILE *fp){
static int first_time = 1;
static int eof_valid = 0;
static int need_num_pages = 0;
static int need_addr = 0;
static char token[11];
static int rc;
rc = fscanf(fp, "%s", token);
if (rc == EOF && !eof_valid) {
fprintf(stderr, "invalid EOF in input file; this is fatal\n");
exit (-1);
}
else if (rc == EOF ) {
//printf("rc = EOF\n");
cmd = "EOF";
}
else if (first_time && strcmp(token, "-p")== MATCH) { //strcmp returns 0 if match
cmd = "p";
first_time = 0; // clear first time flag cause we have been here already
need_num_pages = 1; // set flag to require a pagenumber next in input file
get_command(fp);
}
else if (need_num_pages) {
available_pf = (u32) strtol(token, NULL, 10);
validate_pf_number(available_pf);
eof_valid = 1;
need_num_pages = 0;
}
else if (need_addr) {
validate_addr(token);
need_addr = 0;
eof_valid = 1;
}
else if ( strcmp(token, "w") == MATCH ||
strcmp(token, "W") == MATCH ) {
cmd = "w";
need_addr = 1;
get_command(fp);
}
else if ( strcmp(token, "r") == MATCH ||
strcmp(token, "R") == MATCH ) {
cmd = "r";
need_addr= 1;
get_command(fp);
}
else if (strcmp(token, "-v") == MATCH) {
v_flag = 1;
cmd = "-v";
}
else if (strcmp(token, "-t") == MATCH) {
t_flag = 1;
cmd = "-t";
}
else if (strcmp(token, "-d") == MATCH) {
d_flag = 1;
cmd = "-d";
}
else {
fprintf(stderr, "Invalid instruction sequence: got %s\n", token);
exit(-1);
}
first_time = 0;
}