| ng_nat.c (163297) | ng_nat.c (164797) |
|---|---|
| 1/*- 2 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright 2005, Gleb Smirnoff <glebius@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/sys/netgraph/ng_nat.c 163297 2006-10-13 09:11:12Z glebius $ | 26 * $FreeBSD: head/sys/netgraph/ng_nat.c 164797 2006-12-01 16:27:11Z piso $ |
| 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/mbuf.h> 33#include <sys/malloc.h> 34#include <sys/ctype.h> --- 16 unchanged lines hidden (view full) --- 51 52static ng_constructor_t ng_nat_constructor; 53static ng_rcvmsg_t ng_nat_rcvmsg; 54static ng_shutdown_t ng_nat_shutdown; 55static ng_newhook_t ng_nat_newhook; 56static ng_rcvdata_t ng_nat_rcvdata; 57static ng_disconnect_t ng_nat_disconnect; 58 | 27 */ 28 29#include <sys/param.h> 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/mbuf.h> 33#include <sys/malloc.h> 34#include <sys/ctype.h> --- 16 unchanged lines hidden (view full) --- 51 52static ng_constructor_t ng_nat_constructor; 53static ng_rcvmsg_t ng_nat_rcvmsg; 54static ng_shutdown_t ng_nat_shutdown; 55static ng_newhook_t ng_nat_newhook; 56static ng_rcvdata_t ng_nat_rcvdata; 57static ng_disconnect_t ng_nat_disconnect; 58 |
| 59static struct mbuf * m_megapullup(struct mbuf *, int); 60 | |
| 61/* List of commands and how to convert arguments to/from ASCII. */ 62static const struct ng_cmdlist ng_nat_cmdlist[] = { 63 { 64 NGM_NAT_COOKIE, 65 NGM_NAT_SET_IPADDR, 66 "setaliasaddr", 67 &ng_parse_ipaddr_type, 68 NULL --- 253 unchanged lines hidden (view full) --- 322 priv->in = NULL; 323 324 if (priv->out == NULL && priv->in == NULL) 325 ng_rmnode_self(NG_HOOK_NODE(hook)); 326 327 return (0); 328} 329 | 59/* List of commands and how to convert arguments to/from ASCII. */ 60static const struct ng_cmdlist ng_nat_cmdlist[] = { 61 { 62 NGM_NAT_COOKIE, 63 NGM_NAT_SET_IPADDR, 64 "setaliasaddr", 65 &ng_parse_ipaddr_type, 66 NULL --- 253 unchanged lines hidden (view full) --- 320 priv->in = NULL; 321 322 if (priv->out == NULL && priv->in == NULL) 323 ng_rmnode_self(NG_HOOK_NODE(hook)); 324 325 return (0); 326} 327 |
| 330/* 331 * m_megapullup() function is a big hack. 332 * 333 * It allocates an mbuf with cluster and copies the whole 334 * chain into cluster, so that it is all contigous and the 335 * whole packet can be accessed via char pointer. 336 * 337 * This is required, because libalias doesn't have idea 338 * about mbufs. 339 */ 340static struct mbuf * 341m_megapullup(struct mbuf *m, int len) 342{ 343 struct mbuf *mcl; 344 caddr_t cp; 345 346 if (len > MCLBYTES) 347 goto bad; 348 349 if ((mcl = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR)) == NULL) 350 goto bad; 351 352 cp = mtod(mcl, caddr_t); 353 m_copydata(m, 0, len, cp); 354 m_move_pkthdr(mcl, m); 355 mcl->m_len = mcl->m_pkthdr.len; 356 m_freem(m); 357 358 return (mcl); 359bad: 360 m_freem(m); 361 return (NULL); 362} | |