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Added ability to define up to 5 IPv6 prefix delegation by user

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This commit is contained in:
fendo 2014-09-16 17:34:39 +02:00
parent 935445b29a
commit e98fe68174
7 changed files with 400 additions and 53 deletions
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84
dhcp6.c
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@ -98,21 +98,33 @@ static void dhcp6_send_reply(sessionidt s, tunnelidt t, struct in6_addr *ip6_src
}
else
{
struct dhcp6_opt_h *p_opt_head;
int r;
uint16_t lenopt;
if (list_option.p_mess_hdr->type == DHCP6_REQUEST || list_option.p_opt_rapidcommit)
{
session[s].dhcpv6_prefix_iaid = ((struct dhcp6_opt_ia_pd *)list_option.p_opt_ia_pd)->iaid;
}
p_opt->len = htons(sizeof(struct dhcp6_opt_ia_pd) - sizeof(*p_opt) + sizeof(struct dhcp6_opt_ia_prefix));
p_opt_head = p_opt;
lenopt = sizeof(struct dhcp6_opt_ia_pd) - sizeof(*p_opt);
p_opt = (struct dhcp6_opt_h *) &((struct dhcp6_opt_ia_pd *)p_opt)[1];
((struct dhcp6_opt_ia_prefix *)p_opt)->hdr.code = htons(D6_OPT_IAPREFIX);
((struct dhcp6_opt_ia_prefix *)p_opt)->hdr.len = htons(sizeof(struct dhcp6_opt_ia_prefix) - sizeof(*p_opt));
((struct dhcp6_opt_ia_prefix *)p_opt)->pref_lifetime= (config->dhcp6_preferred_lifetime > 0) ? htonl(config->dhcp6_preferred_lifetime) : 0xFFFFFFFF;
((struct dhcp6_opt_ia_prefix *)p_opt)->valid_lifetime= (config->dhcp6_valid_lifetime > 0) ? htonl(config->dhcp6_valid_lifetime) : 0xFFFFFFFF;
((struct dhcp6_opt_ia_prefix *)p_opt)->prefix_len = session[s].ipv6prefixlen;
((struct dhcp6_opt_ia_prefix *)p_opt)->prefix = session[s].ipv6route;
p_opt = (struct dhcp6_opt_h *) &((struct dhcp6_opt_ia_prefix *)p_opt)[1]; // next option
for (r = 0; r < MAXROUTE6 && session[s].route6[r].ipv6route.s6_addr[0] && session[s].route6[r].ipv6prefixlen; r++)
{
((struct dhcp6_opt_ia_prefix *)p_opt)->hdr.code = htons(D6_OPT_IAPREFIX);
((struct dhcp6_opt_ia_prefix *)p_opt)->hdr.len = htons(sizeof(struct dhcp6_opt_ia_prefix) - sizeof(*p_opt));
((struct dhcp6_opt_ia_prefix *)p_opt)->pref_lifetime= (config->dhcp6_preferred_lifetime > 0) ? htonl(config->dhcp6_preferred_lifetime) : 0xFFFFFFFF;
((struct dhcp6_opt_ia_prefix *)p_opt)->valid_lifetime= (config->dhcp6_valid_lifetime > 0) ? htonl(config->dhcp6_valid_lifetime) : 0xFFFFFFFF;
((struct dhcp6_opt_ia_prefix *)p_opt)->prefix_len = session[s].route6[r].ipv6prefixlen;
((struct dhcp6_opt_ia_prefix *)p_opt)->prefix = session[s].route6[r].ipv6route;
p_opt = (struct dhcp6_opt_h *) &((struct dhcp6_opt_ia_prefix *)p_opt)[1]; // next option
lenopt += sizeof(struct dhcp6_opt_ia_prefix);
}
p_opt_head->len = htons(lenopt);
}
}
@ -257,6 +269,46 @@ static void dhcp6_send_reply(sessionidt s, tunnelidt t, struct in6_addr *ip6_src
tunnelsend(b, len + (((uint8_t *) p_ip6_hdr)-b), t); // send it...
}
static char * get_msg_type(uint8_t type)
{
switch(type)
{
case DHCP6_SOLICIT:
{
return "Solicit";
}
break;
case DHCP6_REQUEST:
return "Request";
break;
case DHCP6_RENEW:
return "Renew";
break;
case DHCP6_INFORMATION_REQUEST:
return "Information Request";
break;
case DHCP6_REBIND:
return "Rebind";
break;
case DHCP6_RELEASE:
return "Release";
break;
case DHCP6_DECLINE:
return "Decline";
break;
default:
return "Unknown";
break;
}
}
void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
{
struct ip6_hdr *p_ip6_hdr_in;
@ -270,9 +322,9 @@ void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
p_ip6_hdr_in = (struct ip6_hdr *) p;
p_mess_hdr = (struct dhcp6_mess_hdr *) (p + 48);
LOG(3, s, t, "Got DHCPv6 message Type: %d\n", p_mess_hdr->type);
LOG(3, s, t, "Got DHCPv6 message Type: %s(%d)\n", get_msg_type(p_mess_hdr->type), p_mess_hdr->type);
if (!session[s].ipv6route.s6_addr[0] || !session[s].ipv6prefixlen)
if (!session[s].route6[0].ipv6route.s6_addr[0] || !session[s].route6[0].ipv6prefixlen)
return;
p_opt = (struct dhcp6_opt_h *) &p_mess_hdr[1];
@ -326,8 +378,6 @@ void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
{
case DHCP6_SOLICIT:
{
LOG(3, s, t, "..(Type %d = Solicit)\n", p_mess_hdr->type);
if (!list_option.p_opt_clientid)
{
LOG(3, s, t, "DHCPv6: error no Client-ID\n");
@ -369,8 +419,6 @@ void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
case DHCP6_REQUEST:
{
LOG(3, s, t, "..(Type %d = Request)\n", p_mess_hdr->type);
if (!list_option.p_opt_clientid)
{
LOG(3, s, t, "DHCPv6: error no Client-ID\n");
@ -416,8 +464,6 @@ void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
case DHCP6_RENEW:
{
LOG(3, s, t, "..(Type %d = Renew)\n", p_mess_hdr->type);
if (!list_option.p_opt_clientid)
{
LOG(3, s, t, "DHCPv6: error no Client-ID\n");
@ -448,8 +494,6 @@ void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
case DHCP6_INFORMATION_REQUEST:
{
LOG(3, s, t, "..(Type %d = Information Request)\n", p_mess_hdr->type);
if (!list_option.p_opt_clientid)
{
LOG(3, s, t, "DHCPv6: error no Client-ID\n");
@ -462,24 +506,20 @@ void dhcpv6_process(sessionidt s, tunnelidt t, uint8_t *p, uint16_t l)
case DHCP6_REBIND:
{
LOG(3, s, t, "..(Type %d = Rebind)\n", p_mess_hdr->type);
}
break;
case DHCP6_RELEASE:
{
LOG(3, s, t, "..(Type %d = Release)\n", p_mess_hdr->type);
}
break;
case DHCP6_DECLINE:
{
LOG(3, s, t, "..(Type %d = Decline)\n", p_mess_hdr->type);
}
break;
default:
LOG(3, s, t, "Got unknown DHCPv6 Type: %d\n", *(p + 38));
break;
}