/* simple fn for IP/Ethernet arp the most common */
struct pdu *arp_ie_simple_create(struct frame *framep, uint16_t oper, char *sha, char *spa, char *tha,
char *tpa)
{
uint8_t bsha[6], btha[6];
uint8_t bspa[4], btpa[4];
/* convert strings */
if (!parse_mac_string(sha, bsha))
return NULL;
if (!parse_mac_string(tha, btha))
return NULL;
if (!parse_ip_string(spa, bspa))
return NULL;
if (!parse_ip_string(tpa, btpa))
return NULL;
/* return results of arp_create */
return arp_create(framep, ARP_HTYPE_ETHERNET, ETYPE_IP, 6, 4, oper, bsha, bspa,
btha, btpa);
}
int create_fwd_db_entry(char *input)
{
int pos = 0;
char *local;
char *str;
char *save;
char *token;
fwd_db_entry_t *entry = &fwd_db->array[fwd_db->index];
/* Verify we haven't run out of space */
if (MAX_DB <= fwd_db->index)
return -1;
/* Make a local copy */
local = malloc(strlen(input) + 1);
if (NULL == local)
return -1;
strcpy(local, input);
/* Setup for using "strtok_r" to search input string */
str = local;
save = NULL;
/* Parse tokens separated by ':' */
while (NULL != (token = strtok_r(str, ":", &save))) {
str = NULL; /* reset str for subsequent strtok_r calls */
/* Parse token based on its position */
switch (pos) {
case 0:
parse_ipv4_string(token,
&entry->subnet.addr,
&entry->subnet.mask);
break;
case 1:
strncpy(entry->oif, token, OIF_LEN - 1);
entry->oif[OIF_LEN - 1] = 0;
break;
case 2:
parse_mac_string(token, entry->dst_mac);
break;
default:
printf("ERROR: extra token \"%s\" at position %d\n",
token, pos);
break;
}
/* Advance to next position */
pos++;
}
/* Verify we parsed exactly the number of tokens we expected */
if (3 != pos) {
printf("ERROR: \"%s\" contains %d tokens, expected 3\n",
input,
pos);
free(local);
return -1;
}
/* Reset queue to invalid */
entry->queue = ODP_QUEUE_INVALID;
/* Add route to the list */
fwd_db->index++;
entry->next = fwd_db->list;
fwd_db->list = entry;
free(local);
return 0;
}
