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Merge pull request #3102 from BytesGalore/fib_compat_old_network_stack

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ip: added a define to enable a FIB compatibility mode replacing `get_next_hop()`
This commit is contained in:
Lotte Steenbrink 2015-06-02 11:28:31 +02:00
commit 69437fdfa0
1 changed files with 45 additions and 2 deletions
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47
sys/net/network_layer/sixlowpan/ip.c
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@ -32,6 +32,10 @@
#include "icmp.h"
#include "lowpan.h"
#ifdef FIB_COMPAT
#include "ng_fib.h"
#endif
#include "net_help.h"
#define ENABLE_DEBUG (0)
@ -55,7 +59,9 @@ kernel_pid_t udp_packet_handler_pid = KERNEL_PID_UNDEF;
kernel_pid_t tcp_packet_handler_pid = KERNEL_PID_UNDEF;
static volatile kernel_pid_t _rpl_process_pid = KERNEL_PID_UNDEF;
#ifndef FIB_COMPAT
ipv6_addr_t *(*ip_get_next_hop)(ipv6_addr_t *);
#endif
uint8_t (*ip_srh_indicator)(void);
static ipv6_net_if_ext_t ipv6_net_if_ext[NET_IF_MAX];
@ -107,6 +113,21 @@ int ipv6_send_packet(ipv6_hdr_t *packet, ipv6_addr_t *next_hop)
if (next_hop == NULL) {
DEBUG("Trying to find the next hop for %s\n", ipv6_addr_to_str(addr_str, IPV6_MAX_ADDR_STR_LEN, &packet->destaddr));
#ifdef FIB_COMPAT
ipv6_addr_t nxt;
ipv6_addr_t *dest;
kernel_pid_t iface_id;
size_t nxt_size = sizeof(ipv6_addr_t);
uint32_t nxt_flags;
int ret = fib_get_next_hop(&iface_id, &nxt.uint8[0], &nxt_size, &nxt_flags,
&packet->destaddr.uint8[0], sizeof(ipv6_addr_t), AF_INET6);
if (ret == -EHOSTUNREACH) {
return -1;
}
dest = &nxt;
#else
if (ip_get_next_hop == NULL) {
return -1;
}
@ -116,7 +137,7 @@ int ipv6_send_packet(ipv6_hdr_t *packet, ipv6_addr_t *next_hop)
if (dest == NULL) {
return -1;
}
#endif
nce = ndp_get_ll_address(dest);
if (nce == NULL
@ -495,14 +516,29 @@ void *ipv6_process(void *arg)
ndp_neighbor_cache_t *nce;
ipv6_addr_t *dest;
#ifdef FIB_COMPAT
ipv6_addr_t nxt;
kernel_pid_t iface_id;
size_t nxt_size = sizeof(ipv6_addr_t);
uint32_t nxt_flags;
int ret = fib_get_next_hop(&iface_id,
&nxt.uint8[0], &nxt_size, &nxt_flags,
&ipv6_buf->destaddr.uint8[0],
sizeof(ipv6_addr_t), AF_INET6);
if (ret == -EHOSTUNREACH) {
memcpy(&nxt, &ipv6_buf->destaddr, sizeof(ipv6_addr_t));
}
dest = &nxt;
#else
if (ip_get_next_hop == NULL) {
dest = &ipv6_buf->destaddr;
}
else {
dest = ip_get_next_hop(&ipv6_buf->destaddr);
}
#endif
if ((dest == NULL) || ((--ipv6_buf->hoplimit) == 0)) {
DEBUG("!!! Packet not for me, routing handler is set, but I "
" have no idea where to send or the hop limit is exceeded.\n");
@ -865,7 +901,14 @@ void ipv6_register_next_header_handler(uint8_t next_header, kernel_pid_t pid)
/* register routing function */
void ipv6_iface_set_routing_provider(ipv6_addr_t *(*next_hop)(ipv6_addr_t *dest))
{
#ifdef FIB_COMPAT
(void)next_hop;
puts("[WARNING] you are using FIB_COMPAT!\n\
\t- The registered get_next_hop() function is NOT USED.\n\
\t- In turn the fib_get_next_hop() function will be called!");
#else
ip_get_next_hop = next_hop;
#endif
}
#ifdef MODULE_RPL