static void trace_connection_input_input (trace_type_t *ttype,
unsigned length, char *buf)
{
unsigned left, taken, cc = 0;
char *s;
int32_t connect_index;
isc_result_t status;
omapi_connection_object_t *c = (omapi_connection_object_t *)0;
memcpy (&connect_index, buf, sizeof connect_index);
connect_index = ntohl (connect_index);
omapi_array_foreach_begin (omapi_connections,
omapi_connection_object_t, lp) {
if (lp -> index == ntohl (connect_index)) {
omapi_connection_reference (&c, lp, MDL);
omapi_connection_dereference (&lp, MDL);
break;
}
} omapi_array_foreach_end (omapi_connections,
omapi_connection_object_t, lp);
if (!c) {
log_error ("trace connection input: no connection index %ld",
(long int)connect_index);
return;
}
s = buf + sizeof connect_index;
left = length - sizeof connect_index;
while (left) {
taken = 0;
status = omapi_connection_reader_trace ((omapi_object_t *)c,
left, s, &taken);
if (status != ISC_R_SUCCESS) {
log_error ("trace connection input: %s",
isc_result_totext (status));
break;
}
if (!taken) {
if (cc > 0) {
log_error ("trace connection_input: %s",
"input is not being consumed.");
break;
}
cc++;
} else {
cc = 0;
left -= taken;
}
}
omapi_connection_dereference (&c, MDL);
}
/* Reader callback for a listener object. Accept an incoming connection. */
isc_result_t omapi_accept (omapi_object_t *h)
{
isc_result_t status;
socklen_t len;
omapi_connection_object_t *obj;
omapi_listener_object_t *listener;
struct sockaddr_in addr;
int socket;
if (h -> type != omapi_type_listener)
return ISC_R_INVALIDARG;
listener = (omapi_listener_object_t *)h;
/* Accept the connection. */
len = sizeof addr;
socket = accept (listener -> socket,
((struct sockaddr *)&(addr)), &len);
if (socket < 0) {
if (errno == EMFILE || errno == ENFILE || errno == ENOBUFS)
return ISC_R_NORESOURCES;
return ISC_R_UNEXPECTED;
}
#if defined (TRACING)
/* If we're recording a trace, remember the connection. */
if (trace_record ()) {
trace_iov_t iov [3];
iov [0].buf = (char *)&addr.sin_port;
iov [0].len = sizeof addr.sin_port;
iov [1].buf = (char *)&addr.sin_addr;
iov [1].len = sizeof addr.sin_addr;
iov [2].buf = (char *)&listener -> address.sin_port;
iov [2].len = sizeof listener -> address.sin_port;
trace_write_packet_iov (trace_listener_accept,
3, iov, MDL);
}
#endif
obj = (omapi_connection_object_t *)0;
status = omapi_listener_connect (&obj, listener, socket, &addr);
if (status != ISC_R_SUCCESS) {
close (socket);
return status;
}
status = omapi_register_io_object ((omapi_object_t *)obj,
omapi_connection_readfd,
omapi_connection_writefd,
omapi_connection_reader,
omapi_connection_writer,
omapi_connection_reaper);
/* Lose our reference to the connection, so it'll be gc'd when it's
reaped. */
omapi_connection_dereference (&obj, MDL);
if (status != ISC_R_SUCCESS)
omapi_disconnect ((omapi_object_t *)(obj), 1);
return status;
}
isc_result_t omapi_listener_connect (omapi_connection_object_t **obj,
omapi_listener_object_t *listener,
int socket,
struct sockaddr_in *remote_addr)
{
isc_result_t status;
omapi_object_t *h = (omapi_object_t *)listener;
omapi_addr_t addr;
#ifdef DEBUG_PROTOCOL
log_debug ("omapi_accept()");
#endif
/* Get the handle. */
status = omapi_connection_allocate (obj, MDL);
if (status != ISC_R_SUCCESS)
return status;
(*obj) -> state = omapi_connection_connected;
(*obj) -> remote_addr = *remote_addr;
(*obj) -> socket = socket;
/* Verify that this host is allowed to connect. */
if (listener -> verify_addr) {
addr.addrtype = AF_INET;
addr.addrlen = sizeof (remote_addr -> sin_addr);
memcpy (addr.address, &remote_addr -> sin_addr,
sizeof (remote_addr -> sin_addr));
addr.port = ntohs(remote_addr -> sin_port);
status = (listener -> verify_addr) (h, &addr);
if (status != ISC_R_SUCCESS) {
omapi_disconnect ((omapi_object_t *)(*obj), 1);
omapi_connection_dereference (obj, MDL);
return status;
}
}
omapi_listener_reference (&(*obj) -> listener, listener, MDL);
#if defined (TRACING)
omapi_connection_register (*obj, MDL);
#endif
status = omapi_signal (h, "connect", (*obj));
return status;
}
/* Find the matching connect object, if there is one. */
omapi_array_foreach_begin (omapi_connections,
omapi_connection_object_t, lp) {
for (i = 0; (lp -> connect_list &&
i < lp -> connect_list -> count); i++) {
if (!memcmp (&remote.sin_addr,
&lp -> connect_list -> addresses [i].address,
sizeof remote.sin_addr) &&
(ntohs (remote.sin_port) ==
lp -> connect_list -> addresses [i].port))
lp -> state = omapi_connection_connected;
lp -> remote_addr = remote;
lp -> remote_addr.sin_family = AF_INET;
omapi_addr_list_dereference (&lp -> connect_list, MDL);
lp -> index = connect_index;
status = omapi_signal_in ((omapi_object_t *)lp,
"connect");
omapi_connection_dereference (&lp, MDL);
return;
}
} omapi_array_foreach_end (omapi_connections,
static void trace_connect_input (trace_type_t *ttype,
unsigned length, char *buf)
{
struct sockaddr_in remote, local;
int32_t connect_index, listener_index;
char *s = buf;
omapi_connection_object_t *obj;
isc_result_t status;
int i;
if (length != ((sizeof connect_index) +
(sizeof remote.sin_port) +
(sizeof remote.sin_addr)) * 2) {
log_error ("Trace connect: invalid length %d", length);
return;
}
memset (&remote, 0, sizeof remote);
memset (&local, 0, sizeof local);
memcpy (&connect_index, s, sizeof connect_index);
s += sizeof connect_index;
memcpy (&listener_index, s, sizeof listener_index);
s += sizeof listener_index;
memcpy (&remote.sin_port, s, sizeof remote.sin_port);
s += sizeof remote.sin_port;
memcpy (&local.sin_port, s, sizeof local.sin_port);
s += sizeof local.sin_port;
memcpy (&remote.sin_addr, s, sizeof remote.sin_addr);
s += sizeof remote.sin_addr;
memcpy (&local.sin_addr, s, sizeof local.sin_addr);
s += sizeof local.sin_addr;
connect_index = ntohl (connect_index);
listener_index = ntohl (listener_index);
/* If this was a connect to a listener, then we just slap together
a new connection. */
if (listener_index != -1) {
omapi_listener_object_t *listener;
listener = (omapi_listener_object_t *)0;
omapi_array_foreach_begin (trace_listeners,
omapi_listener_object_t, lp) {
if (lp -> address.sin_port == local.sin_port) {
omapi_listener_reference (&listener, lp, MDL);
omapi_listener_dereference (&lp, MDL);
break;
}
} omapi_array_foreach_end (trace_listeners,
omapi_listener_object_t, lp);
if (!listener) {
log_error ("%s%ld, addr %s, port %d",
"Spurious traced listener connect - index ",
(long int)listener_index,
inet_ntoa (local.sin_addr),
ntohs (local.sin_port));
return;
}
obj = (omapi_connection_object_t *)0;
status = omapi_listener_connect (&obj, listener, -1, &remote);
if (status != ISC_R_SUCCESS) {
log_error ("traced listener connect: %s",
isc_result_totext (status));
}
if (obj)
omapi_connection_dereference (&obj, MDL);
omapi_listener_dereference (&listener, MDL);
return;
}
isc_result_t omapi_connect_list (omapi_object_t *c,
omapi_addr_list_t *remote_addrs,
omapi_addr_t *local_addr)
{
isc_result_t status;
omapi_connection_object_t *obj;
int flag;
struct sockaddr_in local_sin;
obj = (omapi_connection_object_t *)0;
status = omapi_connection_allocate (&obj, MDL);
if (status != ISC_R_SUCCESS)
return status;
status = omapi_object_reference (&c -> outer, (omapi_object_t *)obj,
MDL);
if (status != ISC_R_SUCCESS) {
omapi_connection_dereference (&obj, MDL);
return status;
}
status = omapi_object_reference (&obj -> inner, c, MDL);
if (status != ISC_R_SUCCESS) {
omapi_connection_dereference (&obj, MDL);
return status;
}
/* Store the address list on the object. */
omapi_addr_list_reference (&obj -> connect_list, remote_addrs, MDL);
obj -> cptr = 0;
obj -> state = omapi_connection_unconnected;
#if defined (TRACING)
/* If we're playing back, don't actually try to connect - just leave
the object available for a subsequent connect or disconnect. */
if (!trace_playback ()) {
#endif
/* Create a socket on which to communicate. */
obj -> socket =
socket (PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (obj -> socket < 0) {
omapi_connection_dereference (&obj, MDL);
if (errno == EMFILE || errno == ENFILE
|| errno == ENOBUFS)
return ISC_R_NORESOURCES;
return ISC_R_UNEXPECTED;
}
/* Set up the local address, if any. */
if (local_addr) {
/* Only do TCPv4 so far. */
if (local_addr -> addrtype != AF_INET) {
omapi_connection_dereference (&obj, MDL);
return DHCP_R_INVALIDARG;
}
local_sin.sin_port = htons (local_addr -> port);
memcpy (&local_sin.sin_addr,
local_addr -> address,
local_addr -> addrlen);
#if defined (HAVE_SA_LEN)
local_sin.sin_len = sizeof local_addr;
#endif
local_sin.sin_family = AF_INET;
memset (&local_sin.sin_zero, 0,
sizeof local_sin.sin_zero);
if (bind (obj -> socket, (struct sockaddr *)&local_sin,
sizeof local_sin) < 0) {
omapi_connection_object_t **objp = &obj;
omapi_object_t **o = (omapi_object_t **)objp;
omapi_object_dereference(o, MDL);
if (errno == EADDRINUSE)
return ISC_R_ADDRINUSE;
if (errno == EADDRNOTAVAIL)
return ISC_R_ADDRNOTAVAIL;
if (errno == EACCES)
return ISC_R_NOPERM;
return ISC_R_UNEXPECTED;
}
obj -> local_addr = local_sin;
}
#if defined(F_SETFD)
if (fcntl (obj -> socket, F_SETFD, 1) < 0) {
close (obj -> socket);
omapi_connection_dereference (&obj, MDL);
return ISC_R_UNEXPECTED;
}
#endif
/* Set the SO_REUSEADDR flag (this should not fail). */
flag = 1;
if (setsockopt (obj -> socket, SOL_SOCKET, SO_REUSEADDR,
(char *)&flag, sizeof flag) < 0) {
omapi_connection_dereference (&obj, MDL);
return ISC_R_UNEXPECTED;
}
/* Set the file to nonblocking mode. */
if (fcntl (obj -> socket, F_SETFL, O_NONBLOCK) < 0) {
omapi_connection_dereference (&obj, MDL);
return ISC_R_UNEXPECTED;
}
status = (omapi_register_io_object
((omapi_object_t *)obj,
0, omapi_connection_writefd,
0, omapi_connection_connect,
omapi_connection_reaper));
if (status != ISC_R_SUCCESS)
goto out;
status = omapi_connection_connect_internal ((omapi_object_t *)
obj);
#if defined (TRACING)
}
omapi_connection_register (obj, MDL);
#endif
out:
omapi_connection_dereference (&obj, MDL);
return status;
}
