git: c92983b03f0a - stable/13 - ipfilter: ipf_dstlist is a kernel source file
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Date: Tue, 21 Dec 2021 23:35:27 UTC
The branch stable/13 has been updated by cy:
URL: https://cgit.FreeBSD.org/src/commit/?id=c92983b03f0a29a70adcd9a1ca6f68ec7e1b2a2b
commit c92983b03f0a29a70adcd9a1ca6f68ec7e1b2a2b
Author: Cy Schubert <cy@FreeBSD.org>
AuthorDate: 2021-12-15 21:50:38 +0000
Commit: Cy Schubert <cy@FreeBSD.org>
CommitDate: 2021-12-21 23:34:41 +0000
ipfilter: ipf_dstlist is a kernel source file
Remove duplicate ipf_dstlist.* files. They live in sys/.
(cherry picked from commit 7aec934fffde73f7d22450b18e04436aa77b1148)
---
contrib/ipfilter/ip_dstlist.c | 1343 -----------------------------------------
contrib/ipfilter/ip_dstlist.h | 68 ---
2 files changed, 1411 deletions(-)
diff --git a/contrib/ipfilter/ip_dstlist.c b/contrib/ipfilter/ip_dstlist.c
deleted file mode 100644
index 2802ef694aa9..000000000000
--- a/contrib/ipfilter/ip_dstlist.c
+++ /dev/null
@@ -1,1343 +0,0 @@
-/*
- * Copyright (C) 2012 by Darren Reed.
- *
- * See the IPFILTER.LICENCE file for details on licencing.
- */
-#if defined(KERNEL) || defined(_KERNEL)
-# undef KERNEL
-# undef _KERNEL
-# define KERNEL 1
-# define _KERNEL 1
-#endif
-#include <sys/errno.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/file.h>
-#if !defined(_KERNEL) && !defined(__KERNEL__)
-# include <stdio.h>
-# include <stdlib.h>
-# include <string.h>
-# define _KERNEL
-# include <sys/uio.h>
-# undef _KERNEL
-#else
-# include <sys/systm.h>
-# if defined(NetBSD) && (__NetBSD_Version__ >= 104000000)
-# include <sys/proc.h>
-# endif
-#endif
-#include <sys/time.h>
-# include <sys/protosw.h>
-#include <sys/socket.h>
-#if defined(_KERNEL) && !defined(__SVR4)
-# include <sys/mbuf.h>
-#endif
-#if defined(__SVR4)
-# include <sys/filio.h>
-# include <sys/byteorder.h>
-# ifdef _KERNEL
-# include <sys/dditypes.h>
-# endif
-# include <sys/stream.h>
-# include <sys/kmem.h>
-#endif
-#if defined(__FreeBSD__)
-# include <sys/malloc.h>
-#endif
-
-#include <net/if.h>
-#include <netinet/in.h>
-
-#include "netinet/ip_compat.h"
-#include "netinet/ip_fil.h"
-#include "netinet/ip_nat.h"
-#include "netinet/ip_lookup.h"
-#include "netinet/ip_dstlist.h"
-
-/* END OF INCLUDES */
-
-#ifdef HAS_SYS_MD5_H
-# include <sys/md5.h>
-#else
-# include "md5.h"
-#endif
-
-#if !defined(lint)
-static const char rcsid[] = "@(#)$Id: ip_dstlist.c,v 1.13.2.12 2012/07/20 08:40:19 darren_r Exp $";
-#endif
-
-typedef struct ipf_dstl_softc_s {
- ippool_dst_t *dstlist[LOOKUP_POOL_SZ];
- ippool_dst_t **tails[LOOKUP_POOL_SZ];
- ipf_dstl_stat_t stats;
-} ipf_dstl_softc_t;
-
-
-static void *ipf_dstlist_soft_create(ipf_main_softc_t *);
-static void ipf_dstlist_soft_destroy(ipf_main_softc_t *, void *);
-static int ipf_dstlist_soft_init(ipf_main_softc_t *, void *);
-static void ipf_dstlist_soft_fini(ipf_main_softc_t *, void *);
-static int ipf_dstlist_addr_find(ipf_main_softc_t *, void *, int,
- void *, u_int);
-static size_t ipf_dstlist_flush(ipf_main_softc_t *, void *,
- iplookupflush_t *);
-static int ipf_dstlist_iter_deref(ipf_main_softc_t *, void *, int, int,
- void *);
-static int ipf_dstlist_iter_next(ipf_main_softc_t *, void *, ipftoken_t *,
- ipflookupiter_t *);
-static int ipf_dstlist_node_add(ipf_main_softc_t *, void *,
- iplookupop_t *, int);
-static int ipf_dstlist_node_del(ipf_main_softc_t *, void *,
- iplookupop_t *, int);
-static int ipf_dstlist_stats_get(ipf_main_softc_t *, void *,
- iplookupop_t *);
-static int ipf_dstlist_table_add(ipf_main_softc_t *, void *,
- iplookupop_t *);
-static int ipf_dstlist_table_del(ipf_main_softc_t *, void *,
- iplookupop_t *);
-static int ipf_dstlist_table_deref(ipf_main_softc_t *, void *, void *);
-static void *ipf_dstlist_table_find(void *, int, char *);
-static void ipf_dstlist_table_free(ipf_dstl_softc_t *, ippool_dst_t *);
-static void ipf_dstlist_table_remove(ipf_main_softc_t *,
- ipf_dstl_softc_t *, ippool_dst_t *);
-static void ipf_dstlist_table_clearnodes(ipf_dstl_softc_t *,
- ippool_dst_t *);
-static ipf_dstnode_t *ipf_dstlist_select(fr_info_t *, ippool_dst_t *);
-static void *ipf_dstlist_select_ref(void *, int, char *);
-static void ipf_dstlist_node_free(ipf_dstl_softc_t *, ippool_dst_t *, ipf_dstnode_t *);
-static int ipf_dstlist_node_deref(void *, ipf_dstnode_t *);
-static void ipf_dstlist_expire(ipf_main_softc_t *, void *);
-static void ipf_dstlist_sync(ipf_main_softc_t *, void *);
-
-ipf_lookup_t ipf_dstlist_backend = {
- IPLT_DSTLIST,
- ipf_dstlist_soft_create,
- ipf_dstlist_soft_destroy,
- ipf_dstlist_soft_init,
- ipf_dstlist_soft_fini,
- ipf_dstlist_addr_find,
- ipf_dstlist_flush,
- ipf_dstlist_iter_deref,
- ipf_dstlist_iter_next,
- ipf_dstlist_node_add,
- ipf_dstlist_node_del,
- ipf_dstlist_stats_get,
- ipf_dstlist_table_add,
- ipf_dstlist_table_del,
- ipf_dstlist_table_deref,
- ipf_dstlist_table_find,
- ipf_dstlist_select_ref,
- ipf_dstlist_select_node,
- ipf_dstlist_expire,
- ipf_dstlist_sync
-};
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_soft_create */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* */
-/* Allocating a chunk of memory filled with 0's is enough for the current */
-/* soft context used with destination lists. */
-/* ------------------------------------------------------------------------ */
-static void *
-ipf_dstlist_soft_create(softc)
- ipf_main_softc_t *softc;
-{
- ipf_dstl_softc_t *softd;
- int i;
-
- KMALLOC(softd, ipf_dstl_softc_t *);
- if (softd == NULL) {
- IPFERROR(120028);
- return NULL;
- }
-
- bzero((char *)softd, sizeof(*softd));
- for (i = 0; i <= IPL_LOGMAX; i++)
- softd->tails[i] = &softd->dstlist[i];
-
- return softd;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_soft_destroy */
-/* Returns: Nil */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* */
-/* For destination lists, the only thing we have to do when destroying the */
-/* soft context is free it! */
-/* ------------------------------------------------------------------------ */
-static void
-ipf_dstlist_soft_destroy(softc, arg)
- ipf_main_softc_t *softc;
- void *arg;
-{
- ipf_dstl_softc_t *softd = arg;
-
- KFREE(softd);
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_soft_init */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* */
-/* There is currently no soft context for destination list management. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_soft_init(softc, arg)
- ipf_main_softc_t *softc;
- void *arg;
-{
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_soft_fini */
-/* Returns: Nil */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* */
-/* There is currently no soft context for destination list management. */
-/* ------------------------------------------------------------------------ */
-static void
-ipf_dstlist_soft_fini(softc, arg)
- ipf_main_softc_t *softc;
- void *arg;
-{
- ipf_dstl_softc_t *softd = arg;
- int i;
-
- for (i = -1; i <= IPL_LOGMAX; i++) {
- while (softd->dstlist[i + 1] != NULL) {
- ipf_dstlist_table_remove(softc, softd,
- softd->dstlist[i + 1]);
- }
- }
-
- ASSERT(softd->stats.ipls_numderefnodes == 0);
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_addr_find */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg1(I) - pointer to local context to use */
-/* arg2(I) - pointer to local context to use */
-/* arg3(I) - pointer to local context to use */
-/* arg4(I) - pointer to local context to use */
-/* */
-/* There is currently no such thing as searching a destination list for an */
-/* address so this function becomes a no-op. Its presence is required as */
-/* ipf_lookup_res_name() stores the "addr_find" function pointer in the */
-/* pointer passed in to it as funcptr, although it could be a generic null- */
-/* op function rather than a specific one. */
-/* ------------------------------------------------------------------------ */
-/*ARGSUSED*/
-static int
-ipf_dstlist_addr_find(softc, arg1, arg2, arg3, arg4)
- ipf_main_softc_t *softc;
- void *arg1, *arg3;
- int arg2;
- u_int arg4;
-{
- return -1;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_flush */
-/* Returns: int - number of objects deleted */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* fop(I) - pointer to lookup flush operation data */
-/* */
-/* Flush all of the destination tables that match the data passed in with */
-/* the iplookupflush_t. There are two ways to match objects: the device for */
-/* which they are to be used with and their name. */
-/* ------------------------------------------------------------------------ */
-static size_t
-ipf_dstlist_flush(softc, arg, fop)
- ipf_main_softc_t *softc;
- void *arg;
- iplookupflush_t *fop;
-{
- ipf_dstl_softc_t *softd = arg;
- ippool_dst_t *node, *next;
- int n, i;
-
- for (n = 0, i = -1; i <= IPL_LOGMAX; i++) {
- if (fop->iplf_unit != IPLT_ALL && fop->iplf_unit != i)
- continue;
- for (node = softd->dstlist[i + 1]; node != NULL; node = next) {
- next = node->ipld_next;
-
- if ((*fop->iplf_name != '\0') &&
- strncmp(fop->iplf_name, node->ipld_name,
- FR_GROUPLEN))
- continue;
-
- ipf_dstlist_table_remove(softc, softd, node);
- n++;
- }
- }
- return n;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_iter_deref */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* otype(I) - type of data structure to iterate through */
-/* unit(I) - device we are working with */
-/* data(I) - address of object in kernel space */
-/* */
-/* This function is called when the iteration token is being free'd and is */
-/* responsible for dropping the reference count of the structure it points */
-/* to. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_iter_deref(softc, arg, otype, unit, data)
- ipf_main_softc_t *softc;
- void *arg;
- int otype, unit;
- void *data;
-{
- if (data == NULL) {
- IPFERROR(120001);
- return EINVAL;
- }
-
- if (unit < -1 || unit > IPL_LOGMAX) {
- IPFERROR(120002);
- return EINVAL;
- }
-
- switch (otype)
- {
- case IPFLOOKUPITER_LIST :
- ipf_dstlist_table_deref(softc, arg, (ippool_dst_t *)data);
- break;
-
- case IPFLOOKUPITER_NODE :
- ipf_dstlist_node_deref(arg, (ipf_dstnode_t *)data);
- break;
- }
-
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_iter_next */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* op(I) - pointer to lookup operation data */
-/* uid(I) - uid of process doing the ioctl */
-/* */
-/* This function is responsible for either selecting the next destination */
-/* list or node on a destination list to be returned as a user process */
-/* iterates through the list of destination lists or nodes. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_iter_next(softc, arg, token, iter)
- ipf_main_softc_t *softc;
- void *arg;
- ipftoken_t *token;
- ipflookupiter_t *iter;
-{
- ipf_dstnode_t zn, *nextnode = NULL, *node = NULL;
- ippool_dst_t zero, *next = NULL, *dsttab = NULL;
- ipf_dstl_softc_t *softd = arg;
- int err = 0;
- void *hint;
-
- switch (iter->ili_otype)
- {
- case IPFLOOKUPITER_LIST :
- dsttab = token->ipt_data;
- if (dsttab == NULL) {
- next = softd->dstlist[(int)iter->ili_unit + 1];
- } else {
- next = dsttab->ipld_next;
- }
-
- if (next != NULL) {
- ATOMIC_INC32(next->ipld_ref);
- token->ipt_data = next;
- hint = next->ipld_next;
- } else {
- bzero((char *)&zero, sizeof(zero));
- next = &zero;
- token->ipt_data = NULL;
- hint = NULL;
- }
- break;
-
- case IPFLOOKUPITER_NODE :
- node = token->ipt_data;
- if (node == NULL) {
- dsttab = ipf_dstlist_table_find(arg, iter->ili_unit,
- iter->ili_name);
- if (dsttab == NULL) {
- IPFERROR(120004);
- err = ESRCH;
- nextnode = NULL;
- } else {
- if (dsttab->ipld_dests == NULL)
- nextnode = NULL;
- else
- nextnode = *dsttab->ipld_dests;
- dsttab = NULL;
- }
- } else {
- nextnode = node->ipfd_next;
- }
-
- if (nextnode != NULL) {
- MUTEX_ENTER(&nextnode->ipfd_lock);
- nextnode->ipfd_ref++;
- MUTEX_EXIT(&nextnode->ipfd_lock);
- token->ipt_data = nextnode;
- hint = nextnode->ipfd_next;
- } else {
- bzero((char *)&zn, sizeof(zn));
- nextnode = &zn;
- token->ipt_data = NULL;
- hint = NULL;
- }
- break;
- default :
- IPFERROR(120003);
- err = EINVAL;
- break;
- }
-
- if (err != 0)
- return err;
-
- switch (iter->ili_otype)
- {
- case IPFLOOKUPITER_LIST :
- if (dsttab != NULL)
- ipf_dstlist_table_deref(softc, arg, dsttab);
- err = COPYOUT(next, iter->ili_data, sizeof(*next));
- if (err != 0) {
- IPFERROR(120005);
- err = EFAULT;
- }
- break;
-
- case IPFLOOKUPITER_NODE :
- if (node != NULL)
- ipf_dstlist_node_deref(arg, node);
- err = COPYOUT(nextnode, iter->ili_data, sizeof(*nextnode));
- if (err != 0) {
- IPFERROR(120006);
- err = EFAULT;
- }
- break;
- }
-
- if (hint == NULL)
- ipf_token_mark_complete(token);
-
- return err;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_node_add */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* op(I) - pointer to lookup operation data */
-/* uid(I) - uid of process doing the ioctl */
-/* Locks: WRITE(ipf_poolrw) */
-/* */
-/* Add a new node to a destination list. To do this, we only copy in the */
-/* frdest_t structure because that contains the only data required from the */
-/* application to create a new node. The frdest_t doesn't contain the name */
-/* itself. When loading filter rules, fd_name is a 'pointer' to the name. */
-/* In this case, the 'pointer' does not work, instead it is the length of */
-/* the name and the name is immediately following the frdest_t structure. */
-/* fd_name must include the trailing \0, so it should be strlen(str) + 1. */
-/* For simple sanity checking, an upper bound on the size of fd_name is */
-/* imposed - 128. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_node_add(softc, arg, op, uid)
- ipf_main_softc_t *softc;
- void *arg;
- iplookupop_t *op;
- int uid;
-{
- ipf_dstl_softc_t *softd = arg;
- ipf_dstnode_t *node, **nodes;
- ippool_dst_t *d;
- frdest_t dest;
- int err;
-
- if (op->iplo_size < sizeof(frdest_t)) {
- IPFERROR(120007);
- return EINVAL;
- }
-
- err = COPYIN(op->iplo_struct, &dest, sizeof(dest));
- if (err != 0) {
- IPFERROR(120009);
- return EFAULT;
- }
-
- d = ipf_dstlist_table_find(arg, op->iplo_unit, op->iplo_name);
- if (d == NULL) {
- IPFERROR(120010);
- return ESRCH;
- }
-
- switch (dest.fd_addr.adf_family)
- {
- case AF_INET :
- case AF_INET6 :
- break;
- default :
- IPFERROR(120019);
- return EINVAL;
- }
-
- if (dest.fd_name < -1 || dest.fd_name > 128) {
- IPFERROR(120018);
- return EINVAL;
- }
-
- KMALLOCS(node, ipf_dstnode_t *, sizeof(*node) + dest.fd_name);
- if (node == NULL) {
- softd->stats.ipls_nomem++;
- IPFERROR(120008);
- return ENOMEM;
- }
- bzero((char *)node, sizeof(*node) + dest.fd_name);
-
- bcopy(&dest, &node->ipfd_dest, sizeof(dest));
- node->ipfd_size = sizeof(*node) + dest.fd_name;
-
- if (dest.fd_name > 0) {
- /*
- * fd_name starts out as the length of the string to copy
- * in (including \0) and ends up being the offset from
- * fd_names (0).
- */
- err = COPYIN((char *)op->iplo_struct + sizeof(dest),
- node->ipfd_names, dest.fd_name);
- if (err != 0) {
- IPFERROR(120017);
- KFREES(node, node->ipfd_size);
- return EFAULT;
- }
- node->ipfd_dest.fd_name = 0;
- } else {
- node->ipfd_dest.fd_name = -1;
- }
-
- if (d->ipld_nodes == d->ipld_maxnodes) {
- KMALLOCS(nodes, ipf_dstnode_t **,
- sizeof(*nodes) * (d->ipld_maxnodes + 1));
- if (nodes == NULL) {
- softd->stats.ipls_nomem++;
- IPFERROR(120022);
- KFREES(node, node->ipfd_size);
- return ENOMEM;
- }
- if (d->ipld_dests != NULL) {
- bcopy(d->ipld_dests, nodes,
- sizeof(*nodes) * d->ipld_maxnodes);
- KFREES(d->ipld_dests, sizeof(*nodes) * d->ipld_nodes);
- nodes[0]->ipfd_pnext = nodes;
- }
- d->ipld_dests = nodes;
- d->ipld_maxnodes++;
- }
- d->ipld_dests[d->ipld_nodes] = node;
- d->ipld_nodes++;
-
- if (d->ipld_nodes == 1) {
- node->ipfd_pnext = d->ipld_dests;
- } else if (d->ipld_nodes > 1) {
- node->ipfd_pnext = &d->ipld_dests[d->ipld_nodes - 2]->ipfd_next;
- }
- *node->ipfd_pnext = node;
-
- MUTEX_INIT(&node->ipfd_lock, "ipf dst node lock");
- node->ipfd_uid = uid;
- node->ipfd_ref = 1;
- if (node->ipfd_dest.fd_name == 0)
- (void) ipf_resolvedest(softc, node->ipfd_names,
- &node->ipfd_dest, AF_INET);
-#ifdef USE_INET6
- if (node->ipfd_dest.fd_name == 0 &&
- node->ipfd_dest.fd_ptr == (void *)-1)
- (void) ipf_resolvedest(softc, node->ipfd_names,
- &node->ipfd_dest, AF_INET6);
-#endif
-
- softd->stats.ipls_numnodes++;
-
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_node_deref */
-/* Returns: int - 0 = success, else error */
-/* Parameters: arg(I) - pointer to local context to use */
-/* node(I) - pointer to destionation node to free */
-/* */
-/* Dereference the use count by one. If it drops to zero then we can assume */
-/* that it has been removed from any lists/tables and is ripe for freeing. */
-/* The pointer to context is required for the purpose of maintaining */
-/* statistics. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_node_deref(arg, node)
- void *arg;
- ipf_dstnode_t *node;
-{
- ipf_dstl_softc_t *softd = arg;
- int ref;
-
- MUTEX_ENTER(&node->ipfd_lock);
- ref = --node->ipfd_ref;
- MUTEX_EXIT(&node->ipfd_lock);
-
- if (ref > 0)
- return 0;
-
- if ((node->ipfd_flags & IPDST_DELETE) != 0)
- softd->stats.ipls_numderefnodes--;
- MUTEX_DESTROY(&node->ipfd_lock);
- KFREES(node, node->ipfd_size);
- softd->stats.ipls_numnodes--;
-
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_node_del */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* op(I) - pointer to lookup operation data */
-/* uid(I) - uid of process doing the ioctl */
-/* */
-/* Look for a matching destination node on the named table and free it if */
-/* found. Because the name embedded in the frdest_t is variable in length, */
-/* it is necessary to allocate some memory locally, to complete this op. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_node_del(softc, arg, op, uid)
- ipf_main_softc_t *softc;
- void *arg;
- iplookupop_t *op;
- int uid;
-{
- ipf_dstl_softc_t *softd = arg;
- ipf_dstnode_t *node;
- frdest_t frd, *temp;
- ippool_dst_t *d;
- size_t size;
- int err;
-
- d = ipf_dstlist_table_find(arg, op->iplo_unit, op->iplo_name);
- if (d == NULL) {
- IPFERROR(120012);
- return ESRCH;
- }
-
- err = COPYIN(op->iplo_struct, &frd, sizeof(frd));
- if (err != 0) {
- IPFERROR(120011);
- return EFAULT;
- }
-
- size = sizeof(*temp) + frd.fd_name;
- KMALLOCS(temp, frdest_t *, size);
- if (temp == NULL) {
- softd->stats.ipls_nomem++;
- IPFERROR(120026);
- return ENOMEM;
- }
-
- err = COPYIN(op->iplo_struct, temp, size);
- if (err != 0) {
- IPFERROR(120027);
- return EFAULT;
- }
-
- MUTEX_ENTER(&d->ipld_lock);
- for (node = *d->ipld_dests; node != NULL; node = node->ipfd_next) {
- if ((uid != 0) && (node->ipfd_uid != uid))
- continue;
- if (node->ipfd_size != size)
- continue;
- if (!bcmp(&node->ipfd_dest.fd_ip6, &frd.fd_ip6,
- size - offsetof(frdest_t, fd_ip6))) {
- ipf_dstlist_node_free(softd, d, node);
- MUTEX_EXIT(&d->ipld_lock);
- KFREES(temp, size);
- return 0;
- }
- }
- MUTEX_EXIT(&d->ipld_lock);
- KFREES(temp, size);
-
- return ESRCH;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_node_free */
-/* Returns: Nil */
-/* Parameters: softd(I) - pointer to the destination list context */
-/* d(I) - pointer to destination list */
-/* node(I) - pointer to node to free */
-/* Locks: MUTEX(ipld_lock) or WRITE(ipf_poolrw) */
-/* */
-/* Free the destination node by first removing it from any lists and then */
-/* checking if this was the last reference held to the object. While the */
-/* array of pointers to nodes is compacted, its size isn't reduced (by way */
-/* of allocating a new smaller one and copying) because the belief is that */
-/* it is likely the array will again reach that size. */
-/* ------------------------------------------------------------------------ */
-static void
-ipf_dstlist_node_free(softd, d, node)
- ipf_dstl_softc_t *softd;
- ippool_dst_t *d;
- ipf_dstnode_t *node;
-{
- int i;
-
- /*
- * Compact the array of pointers to nodes.
- */
- for (i = 0; i < d->ipld_nodes; i++)
- if (d->ipld_dests[i] == node)
- break;
- if (d->ipld_nodes - i > 1) {
- bcopy(&d->ipld_dests[i + 1], &d->ipld_dests[i],
- sizeof(*d->ipld_dests) * (d->ipld_nodes - i - 1));
- }
- d->ipld_nodes--;
-
- if (node->ipfd_pnext != NULL)
- *node->ipfd_pnext = node->ipfd_next;
- if (node->ipfd_next != NULL)
- node->ipfd_next->ipfd_pnext = node->ipfd_pnext;
- node->ipfd_pnext = NULL;
- node->ipfd_next = NULL;
-
- if ((node->ipfd_flags & IPDST_DELETE) == 0) {
- softd->stats.ipls_numderefnodes++;
- node->ipfd_flags |= IPDST_DELETE;
- }
-
- ipf_dstlist_node_deref(softd, node);
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_stats_get */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* op(I) - pointer to lookup operation data */
-/* */
-/* Return the current statistics for destination lists. This may be for all */
-/* of them or just information pertaining to a particular table. */
-/* ------------------------------------------------------------------------ */
-/*ARGSUSED*/
-static int
-ipf_dstlist_stats_get(softc, arg, op)
- ipf_main_softc_t *softc;
- void *arg;
- iplookupop_t *op;
-{
- ipf_dstl_softc_t *softd = arg;
- ipf_dstl_stat_t stats;
- int unit, i, err = 0;
-
- if (op->iplo_size != sizeof(ipf_dstl_stat_t)) {
- IPFERROR(120023);
- return EINVAL;
- }
-
- stats = softd->stats;
- unit = op->iplo_unit;
- if (unit == IPL_LOGALL) {
- for (i = 0; i <= IPL_LOGMAX; i++)
- stats.ipls_list[i] = softd->dstlist[i];
- } else if (unit >= 0 && unit <= IPL_LOGMAX) {
- void *ptr;
-
- if (op->iplo_name[0] != '\0')
- ptr = ipf_dstlist_table_find(softd, unit,
- op->iplo_name);
- else
- ptr = softd->dstlist[unit + 1];
- stats.ipls_list[unit] = ptr;
- } else {
- IPFERROR(120024);
- err = EINVAL;
- }
-
- if (err == 0) {
- err = COPYOUT(&stats, op->iplo_struct, sizeof(stats));
- if (err != 0) {
- IPFERROR(120025);
- return EFAULT;
- }
- }
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_table_add */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* op(I) - pointer to lookup operation data */
-/* */
-/* Add a new destination table to the list of those available for the given */
-/* device. Because we seldom operate on these objects (find/add/delete), */
-/* they are just kept in a simple linked list. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_table_add(softc, arg, op)
- ipf_main_softc_t *softc;
- void *arg;
- iplookupop_t *op;
-{
- ipf_dstl_softc_t *softd = arg;
- ippool_dst_t user, *d, *new;
- int unit, err;
-
- d = ipf_dstlist_table_find(arg, op->iplo_unit, op->iplo_name);
- if (d != NULL) {
- IPFERROR(120013);
- return EEXIST;
- }
-
- err = COPYIN(op->iplo_struct, &user, sizeof(user));
- if (err != 0) {
- IPFERROR(120021);
- return EFAULT;
- }
-
- KMALLOC(new, ippool_dst_t *);
- if (new == NULL) {
- softd->stats.ipls_nomem++;
- IPFERROR(120014);
- return ENOMEM;
- }
- bzero((char *)new, sizeof(*new));
-
- MUTEX_INIT(&new->ipld_lock, "ipf dst table lock");
-
- strncpy(new->ipld_name, op->iplo_name, FR_GROUPLEN);
- unit = op->iplo_unit;
- new->ipld_unit = unit;
- new->ipld_policy = user.ipld_policy;
- new->ipld_seed = ipf_random();
- new->ipld_ref = 1;
-
- new->ipld_pnext = softd->tails[unit + 1];
- *softd->tails[unit + 1] = new;
- softd->tails[unit + 1] = &new->ipld_next;
- softd->stats.ipls_numlists++;
-
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_table_del */
-/* Returns: int - 0 = success, else error */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* arg(I) - pointer to local context to use */
-/* op(I) - pointer to lookup operation data */
-/* */
-/* Find a named destinstion list table and delete it. If there are other */
-/* references to it, the caller isn't told. */
-/* ------------------------------------------------------------------------ */
-static int
-ipf_dstlist_table_del(softc, arg, op)
- ipf_main_softc_t *softc;
- void *arg;
- iplookupop_t *op;
-{
- ippool_dst_t *d;
-
- d = ipf_dstlist_table_find(arg, op->iplo_unit, op->iplo_name);
- if (d == NULL) {
- IPFERROR(120015);
- return ESRCH;
- }
-
- if (d->ipld_dests != NULL) {
- IPFERROR(120016);
- return EBUSY;
- }
-
- ipf_dstlist_table_remove(softc, arg, d);
-
- return 0;
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_table_remove */
-/* Returns: Nil */
-/* Parameters: softc(I) - pointer to soft context main structure */
-/* softd(I) - pointer to the destination list context */
-/* d(I) - pointer to destination list */
-/* */
-/* Remove a given destination list from existance. While the IPDST_DELETE */
-/* flag is set every time we call this function and the reference count is */
-/* non-zero, the "numdereflists" counter is always incremented because the */
-/* decision about whether it will be freed or not is not made here. This */
-/* means that the only action the code can take here is to treat it as if */
-/* it will become a detached. */
-/* ------------------------------------------------------------------------ */
-static void
-ipf_dstlist_table_remove(softc, softd, d)
- ipf_main_softc_t *softc;
- ipf_dstl_softc_t *softd;
- ippool_dst_t *d;
-{
-
- if (softd->tails[d->ipld_unit + 1] == &d->ipld_next)
- softd->tails[d->ipld_unit + 1] = d->ipld_pnext;
-
- if (d->ipld_pnext != NULL)
- *d->ipld_pnext = d->ipld_next;
- if (d->ipld_next != NULL)
- d->ipld_next->ipld_pnext = d->ipld_pnext;
- d->ipld_pnext = NULL;
- d->ipld_next = NULL;
-
- ipf_dstlist_table_clearnodes(softd, d);
-
- softd->stats.ipls_numdereflists++;
- d->ipld_flags |= IPDST_DELETE;
-
- ipf_dstlist_table_deref(softc, softd, d);
-}
-
-
-/* ------------------------------------------------------------------------ */
-/* Function: ipf_dstlist_table_free */
-/* Returns: Nil */
-/* Parameters: softd(I) - pointer to the destination list context */
-/* d(I) - pointer to destination list */
-/* */
-/* Free up a destination list data structure and any other memory that was */
-/* directly allocated as part of creating it. Individual destination list */
-/* nodes are not freed. It is assumed the caller will have already emptied */
-/* the destination list. */
-/* ------------------------------------------------------------------------ */
-static void
-ipf_dstlist_table_free(softd, d)
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