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Add DHCPv6 functionality.

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This commit is contained in:
fendo 2014-09-11 16:19:57 +02:00
parent 786a8c4546
commit b3f40f41f7
36 changed files with 2430 additions and 546 deletions
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19
ppp.c
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@ -5,6 +5,8 @@
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <netinet/ip6.h>
#include "dhcp6.h"
#include "l2tpns.h"
#include "constants.h"
#include "plugin.h"
@ -1483,6 +1485,13 @@ static void ipv6cp_open(sessionidt s, tunnelidt t)
if (session[s].ipv6prefixlen)
route6set(s, session[s].ipv6route, session[s].ipv6prefixlen, 1);
if (session[s].ipv6address.s6_addr[0])
{
// Check if included in prefix
if (sessionbyipv6(session[s].ipv6address) != s)
route6set(s, session[s].ipv6address, 128, 1);
}
// Send an initial RA (TODO: Should we send these regularly?)
send_ipv6_ra(s, t, NULL);
}
@ -2260,6 +2269,16 @@ void processipv6in(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
return;
}
// Check if DhcpV6, IP dst: FF02::1:2, Src Port 0x0222 (546), Dst Port 0x0223 (547)
if (*(p + 6) == 17 && *(p + 24) == 0xFF && *(p + 25) == 2 &&
*(uint32_t *)(p + 26) == 0 && *(uint32_t *)(p + 30) == 0 &&
*(uint16_t *)(p + 34) == 0 && *(p + 36) == 0 && *(p + 37) == 1 && *(p + 38) == 0 && *(p + 39) == 2 &&
*(p + 40) == 2 && *(p + 41) == 0x22 && *(p + 42) == 2 && *(p + 43) == 0x23)
{
dhcpv6_process(s, t, p, l);
return;
}
// Add on the tun header
p -= 4;
*(uint32_t *) p = htonl(PKTIPV6);