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-rw-r--r--freebsd/sys/contrib/pf/net/pf_ruleset.c459
1 files changed, 0 insertions, 459 deletions
diff --git a/freebsd/sys/contrib/pf/net/pf_ruleset.c b/freebsd/sys/contrib/pf/net/pf_ruleset.c
deleted file mode 100644
index c7ab6178..00000000
--- a/freebsd/sys/contrib/pf/net/pf_ruleset.c
+++ /dev/null
@@ -1,459 +0,0 @@
-#include <machine/rtems-bsd-kernel-space.h>
-
-/* $OpenBSD: pf_ruleset.c,v 1.2 2008/12/18 15:31:37 dhill Exp $ */
-
-/*
- * Copyright (c) 2001 Daniel Hartmeier
- * Copyright (c) 2002,2003 Henning Brauer
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * Effort sponsored in part by the Defense Advanced Research Projects
- * Agency (DARPA) and Air Force Research Laboratory, Air Force
- * Materiel Command, USAF, under agreement number F30602-01-2-0537.
- *
- */
-
-#ifdef __FreeBSD__
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-#endif
-
-#include <rtems/bsd/sys/param.h>
-#include <sys/socket.h>
-#ifdef _KERNEL
-# include <sys/systm.h>
-#endif /* _KERNEL */
-#include <sys/mbuf.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/tcp.h>
-
-#include <net/if.h>
-#include <net/pfvar.h>
-
-#ifdef INET6
-#include <netinet/ip6.h>
-#endif /* INET6 */
-
-
-#ifdef _KERNEL
-#ifdef __FreeBSD__
-#define DPFPRINTF(format, x...) \
- if (V_pf_status.debug >= PF_DEBUG_NOISY) \
- printf(format , ##x)
-#else
-#define DPFPRINTF(format, x...) \
- if (pf_status.debug >= PF_DEBUG_NOISY) \
- printf(format , ##x)
-#endif
-#ifdef __FreeBSD__
-#define rs_malloc(x) malloc(x, M_TEMP, M_NOWAIT|M_ZERO)
-#else
-#define rs_malloc(x) malloc(x, M_TEMP, M_WAITOK|M_CANFAIL|M_ZERO)
-#endif
-#define rs_free(x) free(x, M_TEMP)
-
-#else
-/* Userland equivalents so we can lend code to pfctl et al. */
-
-#include <arpa/inet.h>
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#define rs_malloc(x) calloc(1, x)
-#define rs_free(x) free(x)
-
-#ifdef PFDEBUG
-#include <sys/stdarg.h>
-#define DPFPRINTF(format, x...) fprintf(stderr, format , ##x)
-#else
-#define DPFPRINTF(format, x...) ((void)0)
-#endif /* PFDEBUG */
-#endif /* _KERNEL */
-
-#if defined(__FreeBSD__) && !defined(_KERNEL)
-#undef V_pf_anchors
-#define V_pf_anchors pf_anchors
-
-#undef pf_main_ruleset
-#define pf_main_ruleset pf_main_anchor.ruleset
-#endif
-
-#if defined(__FreeBSD__) && defined(_KERNEL)
-VNET_DEFINE(struct pf_anchor_global, pf_anchors);
-VNET_DEFINE(struct pf_anchor, pf_main_anchor);
-#else
-struct pf_anchor_global pf_anchors;
-struct pf_anchor pf_main_anchor;
-#endif
-
-static __inline int pf_anchor_compare(struct pf_anchor *, struct pf_anchor *);
-
-RB_GENERATE(pf_anchor_global, pf_anchor, entry_global, pf_anchor_compare);
-RB_GENERATE(pf_anchor_node, pf_anchor, entry_node, pf_anchor_compare);
-
-static __inline int
-pf_anchor_compare(struct pf_anchor *a, struct pf_anchor *b)
-{
- int c = strcmp(a->path, b->path);
-
- return (c ? (c < 0 ? -1 : 1) : 0);
-}
-
-int
-pf_get_ruleset_number(u_int8_t action)
-{
- switch (action) {
- case PF_SCRUB:
- case PF_NOSCRUB:
- return (PF_RULESET_SCRUB);
- break;
- case PF_PASS:
- case PF_DROP:
- return (PF_RULESET_FILTER);
- break;
- case PF_NAT:
- case PF_NONAT:
- return (PF_RULESET_NAT);
- break;
- case PF_BINAT:
- case PF_NOBINAT:
- return (PF_RULESET_BINAT);
- break;
- case PF_RDR:
- case PF_NORDR:
- return (PF_RULESET_RDR);
- break;
- default:
- return (PF_RULESET_MAX);
- break;
- }
-}
-
-void
-pf_init_ruleset(struct pf_ruleset *ruleset)
-{
- int i;
-
- memset(ruleset, 0, sizeof(struct pf_ruleset));
- for (i = 0; i < PF_RULESET_MAX; i++) {
- TAILQ_INIT(&ruleset->rules[i].queues[0]);
- TAILQ_INIT(&ruleset->rules[i].queues[1]);
- ruleset->rules[i].active.ptr = &ruleset->rules[i].queues[0];
- ruleset->rules[i].inactive.ptr = &ruleset->rules[i].queues[1];
- }
-}
-
-struct pf_anchor *
-pf_find_anchor(const char *path)
-{
- struct pf_anchor *key, *found;
-
- key = (struct pf_anchor *)rs_malloc(sizeof(*key));
- if (key == NULL)
- return (NULL);
- strlcpy(key->path, path, sizeof(key->path));
-#ifdef __FreeBSD__
- found = RB_FIND(pf_anchor_global, &V_pf_anchors, key);
-#else
- found = RB_FIND(pf_anchor_global, &pf_anchors, key);
-#endif
- rs_free(key);
- return (found);
-}
-
-struct pf_ruleset *
-pf_find_ruleset(const char *path)
-{
- struct pf_anchor *anchor;
-
- while (*path == '/')
- path++;
- if (!*path)
- return (&pf_main_ruleset);
- anchor = pf_find_anchor(path);
- if (anchor == NULL)
- return (NULL);
- else
- return (&anchor->ruleset);
-}
-
-struct pf_ruleset *
-pf_find_or_create_ruleset(const char *path)
-{
- char *p, *q, *r;
- struct pf_ruleset *ruleset;
-#ifdef __FreeBSD__
- struct pf_anchor *anchor = NULL, *dup, *parent = NULL;
-#else
- struct pf_anchor *anchor, *dup, *parent = NULL;
-#endif
-
- if (path[0] == 0)
- return (&pf_main_ruleset);
- while (*path == '/')
- path++;
- ruleset = pf_find_ruleset(path);
- if (ruleset != NULL)
- return (ruleset);
- p = (char *)rs_malloc(MAXPATHLEN);
- if (p == NULL)
- return (NULL);
- strlcpy(p, path, MAXPATHLEN);
- while (parent == NULL && (q = strrchr(p, '/')) != NULL) {
- *q = 0;
- if ((ruleset = pf_find_ruleset(p)) != NULL) {
- parent = ruleset->anchor;
- break;
- }
- }
- if (q == NULL)
- q = p;
- else
- q++;
- strlcpy(p, path, MAXPATHLEN);
- if (!*q) {
- rs_free(p);
- return (NULL);
- }
- while ((r = strchr(q, '/')) != NULL || *q) {
- if (r != NULL)
- *r = 0;
- if (!*q || strlen(q) >= PF_ANCHOR_NAME_SIZE ||
- (parent != NULL && strlen(parent->path) >=
- MAXPATHLEN - PF_ANCHOR_NAME_SIZE - 1)) {
- rs_free(p);
- return (NULL);
- }
- anchor = (struct pf_anchor *)rs_malloc(sizeof(*anchor));
- if (anchor == NULL) {
- rs_free(p);
- return (NULL);
- }
- RB_INIT(&anchor->children);
- strlcpy(anchor->name, q, sizeof(anchor->name));
- if (parent != NULL) {
- strlcpy(anchor->path, parent->path,
- sizeof(anchor->path));
- strlcat(anchor->path, "/", sizeof(anchor->path));
- }
- strlcat(anchor->path, anchor->name, sizeof(anchor->path));
-#ifdef __FreeBSD__
- if ((dup = RB_INSERT(pf_anchor_global, &V_pf_anchors, anchor)) !=
-#else
- if ((dup = RB_INSERT(pf_anchor_global, &pf_anchors, anchor)) !=
-#endif
- NULL) {
- printf("pf_find_or_create_ruleset: RB_INSERT1 "
- "'%s' '%s' collides with '%s' '%s'\n",
- anchor->path, anchor->name, dup->path, dup->name);
- rs_free(anchor);
- rs_free(p);
- return (NULL);
- }
- if (parent != NULL) {
- anchor->parent = parent;
- if ((dup = RB_INSERT(pf_anchor_node, &parent->children,
- anchor)) != NULL) {
- printf("pf_find_or_create_ruleset: "
- "RB_INSERT2 '%s' '%s' collides with "
- "'%s' '%s'\n", anchor->path, anchor->name,
- dup->path, dup->name);
-#ifdef __FreeBSD__
- RB_REMOVE(pf_anchor_global, &V_pf_anchors,
-#else
- RB_REMOVE(pf_anchor_global, &pf_anchors,
-#endif
- anchor);
- rs_free(anchor);
- rs_free(p);
- return (NULL);
- }
- }
- pf_init_ruleset(&anchor->ruleset);
- anchor->ruleset.anchor = anchor;
- parent = anchor;
- if (r != NULL)
- q = r + 1;
- else
- *q = 0;
- }
- rs_free(p);
- return (&anchor->ruleset);
-}
-
-void
-pf_remove_if_empty_ruleset(struct pf_ruleset *ruleset)
-{
- struct pf_anchor *parent;
- int i;
-
- while (ruleset != NULL) {
- if (ruleset == &pf_main_ruleset || ruleset->anchor == NULL ||
- !RB_EMPTY(&ruleset->anchor->children) ||
- ruleset->anchor->refcnt > 0 || ruleset->tables > 0 ||
- ruleset->topen)
- return;
- for (i = 0; i < PF_RULESET_MAX; ++i)
- if (!TAILQ_EMPTY(ruleset->rules[i].active.ptr) ||
- !TAILQ_EMPTY(ruleset->rules[i].inactive.ptr) ||
- ruleset->rules[i].inactive.open)
- return;
-#ifdef __FreeBSD__
- RB_REMOVE(pf_anchor_global, &V_pf_anchors, ruleset->anchor);
-#else
- RB_REMOVE(pf_anchor_global, &pf_anchors, ruleset->anchor);
-#endif
- if ((parent = ruleset->anchor->parent) != NULL)
- RB_REMOVE(pf_anchor_node, &parent->children,
- ruleset->anchor);
- rs_free(ruleset->anchor);
- if (parent == NULL)
- return;
- ruleset = &parent->ruleset;
- }
-}
-
-int
-pf_anchor_setup(struct pf_rule *r, const struct pf_ruleset *s,
- const char *name)
-{
- char *p, *path;
- struct pf_ruleset *ruleset;
-
- r->anchor = NULL;
- r->anchor_relative = 0;
- r->anchor_wildcard = 0;
- if (!name[0])
- return (0);
- path = (char *)rs_malloc(MAXPATHLEN);
- if (path == NULL)
- return (1);
- if (name[0] == '/')
- strlcpy(path, name + 1, MAXPATHLEN);
- else {
- /* relative path */
- r->anchor_relative = 1;
- if (s->anchor == NULL || !s->anchor->path[0])
- path[0] = 0;
- else
- strlcpy(path, s->anchor->path, MAXPATHLEN);
- while (name[0] == '.' && name[1] == '.' && name[2] == '/') {
- if (!path[0]) {
- printf("pf_anchor_setup: .. beyond root\n");
- rs_free(path);
- return (1);
- }
- if ((p = strrchr(path, '/')) != NULL)
- *p = 0;
- else
- path[0] = 0;
- r->anchor_relative++;
- name += 3;
- }
- if (path[0])
- strlcat(path, "/", MAXPATHLEN);
- strlcat(path, name, MAXPATHLEN);
- }
- if ((p = strrchr(path, '/')) != NULL && !strcmp(p, "/*")) {
- r->anchor_wildcard = 1;
- *p = 0;
- }
- ruleset = pf_find_or_create_ruleset(path);
- rs_free(path);
- if (ruleset == NULL || ruleset->anchor == NULL) {
- printf("pf_anchor_setup: ruleset\n");
- return (1);
- }
- r->anchor = ruleset->anchor;
- r->anchor->refcnt++;
- return (0);
-}
-
-int
-pf_anchor_copyout(const struct pf_ruleset *rs, const struct pf_rule *r,
- struct pfioc_rule *pr)
-{
- pr->anchor_call[0] = 0;
- if (r->anchor == NULL)
- return (0);
- if (!r->anchor_relative) {
- strlcpy(pr->anchor_call, "/", sizeof(pr->anchor_call));
- strlcat(pr->anchor_call, r->anchor->path,
- sizeof(pr->anchor_call));
- } else {
- char *a, *p;
- int i;
-
- a = (char *)rs_malloc(MAXPATHLEN);
- if (a == NULL)
- return (1);
- if (rs->anchor == NULL)
- a[0] = 0;
- else
- strlcpy(a, rs->anchor->path, MAXPATHLEN);
- for (i = 1; i < r->anchor_relative; ++i) {
- if ((p = strrchr(a, '/')) == NULL)
- p = a;
- *p = 0;
- strlcat(pr->anchor_call, "../",
- sizeof(pr->anchor_call));
- }
- if (strncmp(a, r->anchor->path, strlen(a))) {
- printf("pf_anchor_copyout: '%s' '%s'\n", a,
- r->anchor->path);
- rs_free(a);
- return (1);
- }
- if (strlen(r->anchor->path) > strlen(a))
- strlcat(pr->anchor_call, r->anchor->path + (a[0] ?
- strlen(a) + 1 : 0), sizeof(pr->anchor_call));
- rs_free(a);
- }
- if (r->anchor_wildcard)
- strlcat(pr->anchor_call, pr->anchor_call[0] ? "/*" : "*",
- sizeof(pr->anchor_call));
- return (0);
-}
-
-void
-pf_anchor_remove(struct pf_rule *r)
-{
- if (r->anchor == NULL)
- return;
- if (r->anchor->refcnt <= 0) {
- printf("pf_anchor_remove: broken refcount\n");
- r->anchor = NULL;
- return;
- }
- if (!--r->anchor->refcnt)
- pf_remove_if_empty_ruleset(&r->anchor->ruleset);
- r->anchor = NULL;
-}