#include "cluster.h"
#include "util.h"
#include "tbf.h"
+#include "pppoe.h"
#ifdef BGP
#include "bgp.h"
//
// The master just processes the payload as if it had
// received it off the tun device.
-//
-int master_forward_packet(uint8_t *data, int size, in_addr_t addr, int port)
+//(note: THIS ROUTINE WRITES TO pack[-6]).
+int master_forward_packet(uint8_t *data, int size, in_addr_t addr, uint16_t port, uint16_t indexudp)
{
- return _forward_packet(data, size, addr, port, C_FORWARD);
+ uint8_t *p = data - (3 * sizeof(uint32_t));
+ uint8_t *psave = p;
+ uint32_t indexandport = port | ((indexudp << 16) & 0xFFFF0000);
+
+ if (!config->cluster_master_address) // No election has been held yet. Just skip it.
+ return -1;
+
+ LOG(4, 0, 0, "Forwarding packet from %s to master (size %d)\n", fmtaddr(addr, 0), size);
+
+ STAT(c_forwarded);
+ add_type(&p, C_FORWARD, addr, (uint8_t *) &indexandport, sizeof(indexandport));
+
+ return peer_send_data(config->cluster_master_address, psave, size + (3 * sizeof(uint32_t)));
+}
+
+// Forward PPPOE packet to the master.
+//(note: THIS ROUTINE WRITES TO pack[-4]).
+int master_forward_pppoe_packet(uint8_t *data, int size, uint8_t codepad)
+{
+ uint8_t *p = data - (2 * sizeof(uint32_t));
+ uint8_t *psave = p;
+
+ if (!config->cluster_master_address) // No election has been held yet. Just skip it.
+ return -1;
+
+ LOG(4, 0, 0, "Forward PPPOE packet to master, code %s (size %d)\n", get_string_codepad(codepad), size);
+
+ STAT(c_forwarded);
+ add_type(&p, C_PPPOE_FORWARD, codepad, NULL, 0);
+
+ return peer_send_data(config->cluster_master_address, psave, size + (2 * sizeof(uint32_t)));
}
// Forward a DAE RADIUS packet to the master.
}
+//
+// Forward a MPPP packet to the master for handling.
+//
+// (Note that this must be called with the tun header
+// as the start of the data).
+// (i.e. this routine writes to data[-8]).
+int master_forward_mppp_packet(sessionidt s, uint8_t *data, int size)
+{
+ uint8_t *p = data - (2 * sizeof(uint32_t));
+ uint8_t *psave = p;
+
+ if (!config->cluster_master_address) // No election has been held yet. Just skip it.
+ return -1;
+
+ LOG(4, 0, 0, "Forward MPPP packet to master (size %d)\n", size);
+
+ add_type(&p, C_MPPP_FORWARD, s, NULL, 0);
+
+ return peer_send_data(config->cluster_master_address, psave, size + (2 * sizeof(uint32_t)));
+
+}
+
//
// Send a chunk of data as a heartbeat..
// We save it in the history buffer as we do so.
// to become a master!!!
config->cluster_iam_master = 1;
+ pppoe_send_garp(); // gratuitous arp of the pppoe interface
LOG(0, 0, 0, "I am declaring myself the master!\n");
exit(1);
}
- LOG(3, 0, 0, "Sending v%d heartbeat #%d, change #%" PRIu64 " with %d changes "
+ LOG(4, 0, 0, "Sending v%d heartbeat #%d, change #%" PRIu64 " with %d changes "
"(%d x-sess, %d x-bundles, %d x-tunnels, %d highsess, %d highbund, %d hightun, size %d)\n",
HB_VERSION, h.seq, h.table_version, config->cluster_num_changes,
count, bcount, tcount, config->cluster_highest_sessionid, config->cluster_highest_bundleid,
int i;
for (i = 0 ; i < config->cluster_num_changes ; ++i)
- if ( cluster_changes[i].id == id &&
- cluster_changes[i].type == type)
- return 0; // Already marked for change.
+ {
+ if ( cluster_changes[i].id == id && cluster_changes[i].type == type)
+ {
+ // Already marked for change, remove it
+ --config->cluster_num_changes;
+ memmove(&cluster_changes[i],
+ &cluster_changes[i+1],
+ (config->cluster_num_changes - i) * sizeof(cluster_changes[i]));
+ break;
+ }
+ }
- cluster_changes[i].type = type;
- cluster_changes[i].id = id;
+ cluster_changes[config->cluster_num_changes].type = type;
+ cluster_changes[config->cluster_num_changes].id = id;
++config->cluster_num_changes;
if (config->cluster_num_changes > MAX_CHANGES)
return 1;
}
-
// A particular session has been changed!
int cluster_send_session(int sid)
{
// Process a heartbeat..
//
// v6: added RADIUS class attribute, re-ordered session structure
+// v7: added tunnelt attribute at the end of struct (tunnelt size change)
static int cluster_process_heartbeat(uint8_t *data, int size, int more, uint8_t *p, in_addr_t addr)
{
heartt *h;
int i, type;
int hb_ver = more;
-#if HB_VERSION != 6
+#if HB_VERSION != 7
# error "need to update cluster_process_heartbeat()"
#endif
- // we handle versions 5 through 6
+ // we handle versions 5 through 7
if (hb_ver < 5 || hb_ver > HB_VERSION) {
LOG(0, 0, 0, "Received a heartbeat version that I don't support (%d)!\n", hb_ver);
return -1; // Ignore it??
size = rle_decompress((uint8_t **) &p, s, c, sizeof(c));
s -= (p - orig_p);
- if (size != sizeof(tunnelt) ) { // Ouch! Very very bad!
+ if ( ((hb_ver >= HB_VERSION) && (size != sizeof(tunnelt))) ||
+ ((hb_ver < HB_VERSION) && (size > sizeof(tunnelt))) )
+ { // Ouch! Very very bad!
LOG(0, 0, 0, "DANGER: Received a CTUNNEL that didn't decompress correctly!\n");
// Now what? Should exit! No-longer up to date!
break;
else
{
struct sockaddr_in a;
+ uint16_t indexudp;
a.sin_addr.s_addr = more;
- a.sin_port = *(int *) p;
+ a.sin_port = (*(int *) p) & 0xFFFF;
+ indexudp = ((*(int *) p) >> 16) & 0xFFFF;
s -= sizeof(int);
p += sizeof(int);
processdae(p, s, &a, sizeof(a), &local);
}
else
- processudp(p, s, &a);
+ processudp(p, s, &a, indexudp);
return 0;
}
+ case C_PPPOE_FORWARD:
+ if (!config->cluster_iam_master)
+ {
+ LOG(0, 0, 0, "I'm not the master, but I got a C_PPPOE_FORWARD from %s?\n", fmtaddr(addr, 0));
+ return -1;
+ }
+ else
+ {
+ pppoe_process_forward(p, s, addr);
+ return 0;
+ }
+
+ case C_MPPP_FORWARD:
+ // Receive a MPPP packet from a slave.
+ if (!config->cluster_iam_master) {
+ LOG(0, 0, 0, "I'm not the master, but I got a C_MPPP_FORWARD from %s?\n", fmtaddr(addr, 0));
+ return -1;
+ }
+
+ processipout(p, s);
+ return 0;
case C_THROTTLE: { // Receive a forwarded packet from a slave.
if (!config->cluster_iam_master) {
projects / l2tpns.git / blobdiff