| ng_sample.c (129823) | ng_sample.c (131155) |
|---|---|
| 1 2/* 3 * ng_sample.c 4 * 5 * Copyright (c) 1996-1999 Whistle Communications, Inc. 6 * All rights reserved. 7 * 8 * Subject to the following obligations and disclaimer of warranty, use and --- 22 unchanged lines hidden (view full) --- 31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 * 37 * Author: Julian Elischer <julian@freebsd.org> 38 * | 1 2/* 3 * ng_sample.c 4 * 5 * Copyright (c) 1996-1999 Whistle Communications, Inc. 6 * All rights reserved. 7 * 8 * Subject to the following obligations and disclaimer of warranty, use and --- 22 unchanged lines hidden (view full) --- 31 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 34 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 35 * OF SUCH DAMAGE. 36 * 37 * Author: Julian Elischer <julian@freebsd.org> 38 * |
| 39 * $FreeBSD: head/sys/netgraph/ng_sample.c 129823 2004-05-29 00:51:19Z julian $ | 39 * $FreeBSD: head/sys/netgraph/ng_sample.c 131155 2004-06-26 22:24:16Z julian $ |
| 40 * $Whistle: ng_sample.c,v 1.13 1999/11/01 09:24:52 julian Exp $ 41 */ 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/kernel.h> 46#include <sys/mbuf.h> 47#include <sys/malloc.h> --- 257 unchanged lines hidden (view full) --- 305 /* Free the message and return */ 306 NG_FREE_MSG(msg); 307 return(error); 308} 309 310/* 311 * Receive data, and do something with it. 312 * Actually we receive a queue item which holds the data. | 40 * $Whistle: ng_sample.c,v 1.13 1999/11/01 09:24:52 julian Exp $ 41 */ 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/kernel.h> 46#include <sys/mbuf.h> 47#include <sys/malloc.h> --- 257 unchanged lines hidden (view full) --- 305 /* Free the message and return */ 306 NG_FREE_MSG(msg); 307 return(error); 308} 309 310/* 311 * Receive data, and do something with it. 312 * Actually we receive a queue item which holds the data. |
| 313 * If we free the item it wil also froo the data and metadata unless 314 * we have previously disassociated them using the NGI_GET_xxx() macros. | 313 * If we free the item it will also free the data unless we have 314 * previously disassociated it using the NGI_GET_M() macro. |
| 315 * Possibly send it out on another link after processing. 316 * Possibly do something different if it comes from different | 315 * Possibly send it out on another link after processing. 316 * Possibly do something different if it comes from different |
| 317 * hooks. the caller will never free m or meta, so 318 * if we use up this data or abort we must free BOTH of these. | 317 * hooks. The caller will never free m, so if we use up this data or 318 * abort we must free it. |
| 319 * 320 * If we want, we may decide to force this data to be queued and reprocessed 321 * at the netgraph NETISR time. 322 * We would do that by setting the HK_QUEUE flag on our hook. We would do that 323 * in the connect() method. 324 */ 325static int 326ng_xxx_rcvdata(hook_p hook, item_p item ) --- 26 unchanged lines hidden (view full) --- 353 if (xxxp->channel[chan].dlci == dlci) 354 break; 355 if (chan == XXX_NUM_DLCIS) { 356 NG_FREE_ITEM(item); 357 NG_FREE_M(m); 358 return (ENETUNREACH); 359 } 360 /* If we were called at splnet, use the following: | 319 * 320 * If we want, we may decide to force this data to be queued and reprocessed 321 * at the netgraph NETISR time. 322 * We would do that by setting the HK_QUEUE flag on our hook. We would do that 323 * in the connect() method. 324 */ 325static int 326ng_xxx_rcvdata(hook_p hook, item_p item ) --- 26 unchanged lines hidden (view full) --- 353 if (xxxp->channel[chan].dlci == dlci) 354 break; 355 if (chan == XXX_NUM_DLCIS) { 356 NG_FREE_ITEM(item); 357 NG_FREE_M(m); 358 return (ENETUNREACH); 359 } 360 /* If we were called at splnet, use the following: |
| 361 * NG_SEND_DATA(error, otherhook, m, meta); if this | 361 * NG_SEND_DATA_ONLY(error, otherhook, m); if this |
| 362 * node is running at some SPL other than SPLNET 363 * then you should use instead: error = | 362 * node is running at some SPL other than SPLNET 363 * then you should use instead: error = |
| 364 * ng_queueit(otherhook, m, meta); m = NULL: meta = 365 * NULL; this queues the data using the standard 366 * NETISR system and schedules the data to be picked | 364 * ng_queueit(otherhook, m, NULL); m = NULL; 365 * This queues the data using the standard NETISR 366 * system and schedules the data to be picked |
| 367 * up again once the system has moved to SPLNET and | 367 * up again once the system has moved to SPLNET and |
| 368 * the processing of the data can continue. after 369 * these are run 'm' and 'meta' should be considered | 368 * the processing of the data can continue. After 369 * these are run 'm' should be considered |
| 370 * as invalid and NG_SEND_DATA actually zaps them. */ 371 NG_FWD_NEW_DATA(error, item, 372 xxxp->channel[chan].hook, m); 373 xxxp->packets_in++; 374 } 375 } else { 376 /* It's the debug hook, throw it away.. */ 377 if (hook == xxxp->downstream_hook.hook) { --- 121 unchanged lines hidden --- | 370 * as invalid and NG_SEND_DATA actually zaps them. */ 371 NG_FWD_NEW_DATA(error, item, 372 xxxp->channel[chan].hook, m); 373 xxxp->packets_in++; 374 } 375 } else { 376 /* It's the debug hook, throw it away.. */ 377 if (hook == xxxp->downstream_hook.hook) { --- 121 unchanged lines hidden --- |