| ng_iface.c (131155) | ng_iface.c (131575) |
|---|---|
| 1/* 2 * ng_iface.c 3 * 4 * Copyright (c) 1996-1999 Whistle Communications, Inc. 5 * All rights reserved. 6 * 7 * Subject to the following obligations and disclaimer of warranty, use and 8 * redistribution of this software, in source or object code forms, with or --- 21 unchanged lines hidden (view full) --- 30 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 34 * OF SUCH DAMAGE. 35 * 36 * Author: Archie Cobbs <archie@freebsd.org> 37 * | 1/* 2 * ng_iface.c 3 * 4 * Copyright (c) 1996-1999 Whistle Communications, Inc. 5 * All rights reserved. 6 * 7 * Subject to the following obligations and disclaimer of warranty, use and 8 * redistribution of this software, in source or object code forms, with or --- 21 unchanged lines hidden (view full) --- 30 * SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 33 * THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY 34 * OF SUCH DAMAGE. 35 * 36 * Author: Archie Cobbs <archie@freebsd.org> 37 * |
| 38 * $FreeBSD: head/sys/netgraph/ng_iface.c 131155 2004-06-26 22:24:16Z julian $ | 38 * $FreeBSD: head/sys/netgraph/ng_iface.c 131575 2004-07-04 16:11:03Z stefanf $ |
| 39 * $Whistle: ng_iface.c,v 1.33 1999/11/01 09:24:51 julian Exp $ 40 */ 41 42/* 43 * This node is also a system networking interface. It has 44 * a hook for each protocol (IP, AppleTalk, IPX, etc). Packets 45 * are simply relayed between the interface and the hooks. 46 * --- 173 unchanged lines hidden (view full) --- 220 221/************************************************************************ 222 HELPER STUFF 223 ************************************************************************/ 224 225/* 226 * Get the family descriptor from the family ID 227 */ | 39 * $Whistle: ng_iface.c,v 1.33 1999/11/01 09:24:51 julian Exp $ 40 */ 41 42/* 43 * This node is also a system networking interface. It has 44 * a hook for each protocol (IP, AppleTalk, IPX, etc). Packets 45 * are simply relayed between the interface and the hooks. 46 * --- 173 unchanged lines hidden (view full) --- 220 221/************************************************************************ 222 HELPER STUFF 223 ************************************************************************/ 224 225/* 226 * Get the family descriptor from the family ID 227 */ |
| 228static __inline__ iffam_p | 228static __inline iffam_p |
| 229get_iffam_from_af(sa_family_t family) 230{ 231 iffam_p iffam; 232 int k; 233 234 for (k = 0; k < NUM_FAMILIES; k++) { 235 iffam = &gFamilies[k]; 236 if (iffam->family == family) 237 return (iffam); 238 } 239 return (NULL); 240} 241 242/* 243 * Get the family descriptor from the hook 244 */ | 229get_iffam_from_af(sa_family_t family) 230{ 231 iffam_p iffam; 232 int k; 233 234 for (k = 0; k < NUM_FAMILIES; k++) { 235 iffam = &gFamilies[k]; 236 if (iffam->family == family) 237 return (iffam); 238 } 239 return (NULL); 240} 241 242/* 243 * Get the family descriptor from the hook 244 */ |
| 245static __inline__ iffam_p | 245static __inline iffam_p |
| 246get_iffam_from_hook(priv_p priv, hook_p hook) 247{ 248 int k; 249 250 for (k = 0; k < NUM_FAMILIES; k++) 251 if (priv->hooks[k] == hook) 252 return (&gFamilies[k]); 253 return (NULL); 254} 255 256/* 257 * Get the hook from the iffam descriptor 258 */ 259 | 246get_iffam_from_hook(priv_p priv, hook_p hook) 247{ 248 int k; 249 250 for (k = 0; k < NUM_FAMILIES; k++) 251 if (priv->hooks[k] == hook) 252 return (&gFamilies[k]); 253 return (NULL); 254} 255 256/* 257 * Get the hook from the iffam descriptor 258 */ 259 |
| 260static __inline__ hook_p * | 260static __inline hook_p * |
| 261get_hook_from_iffam(priv_p priv, iffam_p iffam) 262{ 263 return (&priv->hooks[iffam - gFamilies]); 264} 265 266/* 267 * Get the iffam descriptor from the name 268 */ | 261get_hook_from_iffam(priv_p priv, iffam_p iffam) 262{ 263 return (&priv->hooks[iffam - gFamilies]); 264} 265 266/* 267 * Get the iffam descriptor from the name 268 */ |
| 269static __inline__ iffam_p | 269static __inline iffam_p |
| 270get_iffam_from_name(const char *name) 271{ 272 iffam_p iffam; 273 int k; 274 275 for (k = 0; k < NUM_FAMILIES; k++) { 276 iffam = &gFamilies[k]; 277 if (!strcmp(iffam->hookname, name)) 278 return (iffam); 279 } 280 return (NULL); 281} 282 283/* 284 * Find the first free unit number for a new interface. 285 * Increase the size of the unit bitmap as necessary. 286 */ | 270get_iffam_from_name(const char *name) 271{ 272 iffam_p iffam; 273 int k; 274 275 for (k = 0; k < NUM_FAMILIES; k++) { 276 iffam = &gFamilies[k]; 277 if (!strcmp(iffam->hookname, name)) 278 return (iffam); 279 } 280 return (NULL); 281} 282 283/* 284 * Find the first free unit number for a new interface. 285 * Increase the size of the unit bitmap as necessary. 286 */ |
| 287static __inline__ int | 287static __inline int |
| 288ng_iface_get_unit(int *unit) 289{ 290 int index, bit; 291 292 for (index = 0; index < ng_iface_units_len 293 && ng_iface_units[index] == 0; index++); 294 if (index == ng_iface_units_len) { /* extend array */ 295 int i, *newarray, newlen; --- 19 unchanged lines hidden (view full) --- 315 *unit = (index * UNITS_BITSPERWORD) + bit; 316 ng_units_in_use++; 317 return (0); 318} 319 320/* 321 * Free a no longer needed unit number. 322 */ | 288ng_iface_get_unit(int *unit) 289{ 290 int index, bit; 291 292 for (index = 0; index < ng_iface_units_len 293 && ng_iface_units[index] == 0; index++); 294 if (index == ng_iface_units_len) { /* extend array */ 295 int i, *newarray, newlen; --- 19 unchanged lines hidden (view full) --- 315 *unit = (index * UNITS_BITSPERWORD) + bit; 316 ng_units_in_use++; 317 return (0); 318} 319 320/* 321 * Free a no longer needed unit number. 322 */ |
| 323static __inline__ void | 323static __inline void |
| 324ng_iface_free_unit(int unit) 325{ 326 int index, bit; 327 328 index = unit / UNITS_BITSPERWORD; 329 bit = unit % UNITS_BITSPERWORD; 330 KASSERT(index < ng_iface_units_len, 331 ("%s: unit=%d len=%d", __func__, unit, ng_iface_units_len)); --- 499 unchanged lines hidden --- | 324ng_iface_free_unit(int unit) 325{ 326 int index, bit; 327 328 index = unit / UNITS_BITSPERWORD; 329 bit = unit % UNITS_BITSPERWORD; 330 KASSERT(index < ng_iface_units_len, 331 ("%s: unit=%d len=%d", __func__, unit, ng_iface_units_len)); --- 499 unchanged lines hidden --- |