int
main (void)
{
struct stream *s;
s = stream_new (1024);
stream_putc (s, ham);
stream_putw (s, ham);
stream_putl (s, ham);
stream_putq (s, ham);
print_stream (s);
stream_resize (s, stream_get_endp (s));
print_stream (s);
printf ("c: 0x%hhx\n", stream_getc (s));
printf ("w: 0x%hx\n", stream_getw (s));
printf ("l: 0x%x\n", stream_getl (s));
printf ("q: 0x%" PRIu64 "\n", stream_getq (s));
return 0;
}
/*
* The cmd passed to zsend_interface_update may be ZEBRA_INTERFACE_UP or
* ZEBRA_INTERFACE_DOWN.
*
* The ZEBRA_INTERFACE_UP message is sent from the zebra server to
* the clients in one of 2 situations:
* - an if_up is detected e.g., as a result of an RTM_IFINFO message
* - a vty command modifying the bandwidth of an interface is received.
* The ZEBRA_INTERFACE_DOWN message is sent when an if_down is detected.
*/
int
zsend_interface_update (int cmd, struct zserv *client, struct interface_FOO *ifp)
{
struct stream *s;
/* Check this client need interface information. */
if (! client->ifinfo)
return 0;
s = client->obuf;
stream_reset (s);
zserv_create_header (s, cmd);
/* Interface information. */
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putq (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);
stream_putl (s, ifp->mtu6);
stream_putl (s, ifp->bandwidth);
/* Write packet size. */
stream_putw_at (s, 0, stream_get_endp (s));
return zebra_server_send_message(client);
}
static void
zserv_encode_interface (struct stream *s, struct interface *ifp)
{
/* Interface information. */
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putq (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);
stream_putl (s, ifp->mtu6);
stream_putl (s, ifp->bandwidth);
#ifdef HAVE_STRUCT_SOCKADDR_DL
stream_put (s, &ifp->sdl, sizeof (ifp->sdl_storage));
#else
stream_putl (s, ifp->hw_addr_len);
if (ifp->hw_addr_len)
stream_put (s, ifp->hw_addr, ifp->hw_addr_len);
#endif /* HAVE_STRUCT_SOCKADDR_DL */
/* Write packet size. */
stream_putw_at (s, 0, stream_get_endp (s));
}
/*
* This function is called in the following situations:
* - in response to a 3-byte ZEBRA_INTERFACE_ADD request
* from the client.
* - at startup, when zebra figures out the available interfaces
* - when an interface is added (where support for
* RTM_IFANNOUNCE or AF_NETLINK sockets is available), or when
* an interface is marked IFF_UP (i.e., an RTM_IFINFO message is
* received)
*/
int
zsend_interface_add (struct zserv *client, struct interface_FOO *ifp)
{
struct stream *s;
/* Check this client need interface information. */
if (! client->ifinfo)
return 0;
s = client->obuf;
stream_reset (s);
/* Message type. */
zserv_create_header (s, ZEBRA_INTERFACE_ADD);
/* Interface information. */
stream_put (s, ifp->name, INTERFACE_NAMSIZ);
stream_putl (s, ifp->ifindex);
stream_putc (s, ifp->status);
stream_putq (s, ifp->flags);
stream_putl (s, ifp->metric);
stream_putl (s, ifp->mtu);
stream_putl (s, ifp->mtu6);
stream_putl (s, ifp->bandwidth);
#ifdef HAVE_STRUCT_SOCKADDR_DL
stream_put (s, &ifp->sdl, sizeof (ifp->sdl));
#else
stream_putl (s, ifp->hw_addr_len);
if (ifp->hw_addr_len)
stream_put (s, ifp->hw_addr, ifp->hw_addr_len);
#endif /* HAVE_STRUCT_SOCKADDR_DL */
/* Write packet size. */
stream_putw_at (s, 0, stream_get_endp (s));
return zebra_server_send_message(client);
}
