--- /dev/null
+/*
+ * Copyright (c) 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+/* $apfw: pf_osfp.c,v 1.4 2008/08/27 00:01:32 jhw Exp $ */
+/* $OpenBSD: pf_osfp.c,v 1.12 2006/12/13 18:14:10 itojun Exp $ */
+
+/*
+ * Copyright (c) 2003 Mike Frantzen <frantzen@w4g.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <machine/endian.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+
+#include <netinet/in.h>
+#include <netinet/in_systm.h>
+#include <netinet/ip.h>
+#include <netinet/tcp.h>
+#include <netinet/tcp_fsm.h>
+
+#include <net/if.h>
+#include <net/pfvar.h>
+
+#if INET6
+#include <netinet/ip6.h>
+#include <netinet6/in6_var.h>
+#endif /* INET6 */
+
+#define DPFPRINTF(format, x...) \
+ if (pf_status.debug >= PF_DEBUG_NOISY) \
+ printf(format, ##x)
+
+static SLIST_HEAD(pf_osfp_list, pf_os_fingerprint) pf_osfp_list;
+static struct pool pf_osfp_entry_pl;
+static struct pool pf_osfp_pl;
+
+static struct pf_os_fingerprint *pf_osfp_find(struct pf_osfp_list *,
+ struct pf_os_fingerprint *, u_int8_t);
+static struct pf_os_fingerprint *pf_osfp_find_exact(struct pf_osfp_list *,
+ struct pf_os_fingerprint *);
+static void pf_osfp_insert(struct pf_osfp_list *, struct pf_os_fingerprint *);
+
+
+/*
+ * Passively fingerprint the OS of the host (IPv4 TCP SYN packets only)
+ * Returns the list of possible OSes.
+ */
+struct pf_osfp_enlist *
+pf_osfp_fingerprint(struct pf_pdesc *pd, struct mbuf *m, int off,
+ const struct tcphdr *tcp)
+{
+ struct ip *ip;
+ struct ip6_hdr *ip6;
+ char hdr[60];
+
+ if ((pd->af != PF_INET && pd->af != PF_INET6) ||
+ pd->proto != IPPROTO_TCP ||
+ (tcp->th_off << 2) < (int)sizeof (*tcp))
+ return (NULL);
+
+ if (pd->af == PF_INET) {
+ ip = mtod(m, struct ip *);
+ ip6 = (struct ip6_hdr *)NULL;
+ } else {
+ ip = (struct ip *)NULL;
+ ip6 = mtod(m, struct ip6_hdr *);
+ }
+ if (!pf_pull_hdr(m, off, hdr, tcp->th_off << 2, NULL, NULL,
+ pd->af))
+ return (NULL);
+
+ return (pf_osfp_fingerprint_hdr(ip, ip6, (struct tcphdr *)hdr));
+}
+
+struct pf_osfp_enlist *
+pf_osfp_fingerprint_hdr(const struct ip *ip, const struct ip6_hdr *ip6,
+ const struct tcphdr *tcp)
+{
+#if !INET6
+#pragma unused(ip6)
+#endif /* !INET6 */
+ struct pf_os_fingerprint fp, *fpresult;
+ int cnt, optlen = 0;
+ const u_int8_t *optp;
+ char srcname[128];
+
+ if ((tcp->th_flags & (TH_SYN|TH_ACK)) != TH_SYN)
+ return (NULL);
+ if (ip) {
+ if ((ip->ip_off & htons(IP_OFFMASK)) != 0)
+ return (NULL);
+ }
+
+ memset(&fp, 0, sizeof (fp));
+
+ if (ip) {
+ fp.fp_psize = ntohs(ip->ip_len);
+ fp.fp_ttl = ip->ip_ttl;
+ if (ip->ip_off & htons(IP_DF))
+ fp.fp_flags |= PF_OSFP_DF;
+ (void) inet_ntop(AF_INET, &ip->ip_src, srcname,
+ (socklen_t)sizeof (srcname));
+ }
+#if INET6
+ else if (ip6) {
+ /* jumbo payload? */
+ fp.fp_psize = sizeof (struct ip6_hdr) + ntohs(ip6->ip6_plen);
+ fp.fp_ttl = ip6->ip6_hlim;
+ fp.fp_flags |= PF_OSFP_DF;
+ fp.fp_flags |= PF_OSFP_INET6;
+ (void) inet_ntop(AF_INET6, &ip6->ip6_src, srcname,
+ (socklen_t)sizeof (srcname));
+ }
+#endif
+ else
+ return (NULL);
+ fp.fp_wsize = ntohs(tcp->th_win);
+
+
+ cnt = (tcp->th_off << 2) - sizeof (*tcp);
+ optp = (const u_int8_t *)((const char *)tcp + sizeof (*tcp));
+ for (; cnt > 0; cnt -= optlen, optp += optlen) {
+ if (*optp == TCPOPT_EOL)
+ break;
+
+ fp.fp_optcnt++;
+ if (*optp == TCPOPT_NOP) {
+ fp.fp_tcpopts = (fp.fp_tcpopts << PF_OSFP_TCPOPT_BITS) |
+ PF_OSFP_TCPOPT_NOP;
+ optlen = 1;
+ } else {
+ if (cnt < 2)
+ return (NULL);
+ optlen = optp[1];
+ if (optlen > cnt || optlen < 2)
+ return (NULL);
+ switch (*optp) {
+ case TCPOPT_MAXSEG:
+ if (optlen >= TCPOLEN_MAXSEG)
+ memcpy(&fp.fp_mss, &optp[2],
+ sizeof (fp.fp_mss));
+ fp.fp_tcpopts = (fp.fp_tcpopts <<
+ PF_OSFP_TCPOPT_BITS) | PF_OSFP_TCPOPT_MSS;
+#if BYTE_ORDER != BIG_ENDIAN
+ NTOHS(fp.fp_mss);
+#endif
+ break;
+ case TCPOPT_WINDOW:
+ if (optlen >= TCPOLEN_WINDOW)
+ memcpy(&fp.fp_wscale, &optp[2],
+ sizeof (fp.fp_wscale));
+#if BYTE_ORDER != BIG_ENDIAN
+ NTOHS(fp.fp_wscale);
+#endif
+ fp.fp_tcpopts = (fp.fp_tcpopts <<
+ PF_OSFP_TCPOPT_BITS) |
+ PF_OSFP_TCPOPT_WSCALE;
+ break;
+ case TCPOPT_SACK_PERMITTED:
+ fp.fp_tcpopts = (fp.fp_tcpopts <<
+ PF_OSFP_TCPOPT_BITS) | PF_OSFP_TCPOPT_SACK;
+ break;
+ case TCPOPT_TIMESTAMP:
+ if (optlen >= TCPOLEN_TIMESTAMP) {
+ u_int32_t ts;
+ memcpy(&ts, &optp[2], sizeof (ts));
+ if (ts == 0)
+ fp.fp_flags |= PF_OSFP_TS0;
+
+ }
+ fp.fp_tcpopts = (fp.fp_tcpopts <<
+ PF_OSFP_TCPOPT_BITS) | PF_OSFP_TCPOPT_TS;
+ break;
+ default:
+ return (NULL);
+ }
+ }
+ optlen = MAX(optlen, 1); /* paranoia */
+ }
+
+ DPFPRINTF("fingerprinted %s:%d %d:%d:%d:%d:%llx (%d) "
+ "(TS=%s,M=%s%d,W=%s%d)\n",
+ srcname, ntohs(tcp->th_sport),
+ fp.fp_wsize, fp.fp_ttl, (fp.fp_flags & PF_OSFP_DF) != 0,
+ fp.fp_psize, (long long int)fp.fp_tcpopts, fp.fp_optcnt,
+ (fp.fp_flags & PF_OSFP_TS0) ? "0" : "",
+ (fp.fp_flags & PF_OSFP_MSS_MOD) ? "%" :
+ (fp.fp_flags & PF_OSFP_MSS_DC) ? "*" : "",
+ fp.fp_mss,
+ (fp.fp_flags & PF_OSFP_WSCALE_MOD) ? "%" :
+ (fp.fp_flags & PF_OSFP_WSCALE_DC) ? "*" : "",
+ fp.fp_wscale);
+
+ if ((fpresult = pf_osfp_find(&pf_osfp_list, &fp,
+ PF_OSFP_MAXTTL_OFFSET)))
+ return (&fpresult->fp_oses);
+ return (NULL);
+}
+
+/* Match a fingerprint ID against a list of OSes */
+int
+pf_osfp_match(struct pf_osfp_enlist *list, pf_osfp_t os)
+{
+ struct pf_osfp_entry *entry;
+ int os_class, os_version, os_subtype;
+ int en_class, en_version, en_subtype;
+
+ if (os == PF_OSFP_ANY)
+ return (1);
+ if (list == NULL) {
+ DPFPRINTF("osfp no match against %x\n", os);
+ return (os == PF_OSFP_UNKNOWN);
+ }
+ PF_OSFP_UNPACK(os, os_class, os_version, os_subtype);
+ SLIST_FOREACH(entry, list, fp_entry) {
+ PF_OSFP_UNPACK(entry->fp_os, en_class, en_version, en_subtype);
+ if ((os_class == PF_OSFP_ANY || en_class == os_class) &&
+ (os_version == PF_OSFP_ANY || en_version == os_version) &&
+ (os_subtype == PF_OSFP_ANY || en_subtype == os_subtype)) {
+ DPFPRINTF("osfp matched %s %s %s %x==%x\n",
+ entry->fp_class_nm, entry->fp_version_nm,
+ entry->fp_subtype_nm, os, entry->fp_os);
+ return (1);
+ }
+ }
+ DPFPRINTF("fingerprint 0x%x didn't match\n", os);
+ return (0);
+}
+
+/* Initialize the OS fingerprint system */
+void
+pf_osfp_initialize(void)
+{
+ pool_init(&pf_osfp_entry_pl, sizeof (struct pf_osfp_entry), 0, 0, 0,
+ "pfosfpen", NULL);
+ pool_init(&pf_osfp_pl, sizeof (struct pf_os_fingerprint), 0, 0, 0,
+ "pfosfp", NULL);
+ SLIST_INIT(&pf_osfp_list);
+}
+
+#if 0
+void
+pf_osfp_destroy(void)
+{
+ pf_osfp_flush();
+
+ pool_destroy(&pf_osfp_pl);
+ pool_destroy(&pf_osfp_entry_pl);
+}
+#endif
+
+/* Flush the fingerprint list */
+void
+pf_osfp_flush(void)
+{
+ struct pf_os_fingerprint *fp;
+ struct pf_osfp_entry *entry;
+
+ while ((fp = SLIST_FIRST(&pf_osfp_list))) {
+ SLIST_REMOVE_HEAD(&pf_osfp_list, fp_next);
+ while ((entry = SLIST_FIRST(&fp->fp_oses))) {
+ SLIST_REMOVE_HEAD(&fp->fp_oses, fp_entry);
+ pool_put(&pf_osfp_entry_pl, entry);
+ }
+ pool_put(&pf_osfp_pl, fp);
+ }
+}
+
+
+/* Add a fingerprint */
+int
+pf_osfp_add(struct pf_osfp_ioctl *fpioc)
+{
+ struct pf_os_fingerprint *fp, fpadd;
+ struct pf_osfp_entry *entry;
+
+ memset(&fpadd, 0, sizeof (fpadd));
+ fpadd.fp_tcpopts = fpioc->fp_tcpopts;
+ fpadd.fp_wsize = fpioc->fp_wsize;
+ fpadd.fp_psize = fpioc->fp_psize;
+ fpadd.fp_mss = fpioc->fp_mss;
+ fpadd.fp_flags = fpioc->fp_flags;
+ fpadd.fp_optcnt = fpioc->fp_optcnt;
+ fpadd.fp_wscale = fpioc->fp_wscale;
+ fpadd.fp_ttl = fpioc->fp_ttl;
+
+ DPFPRINTF("adding osfp %s %s %s = %s%d:%d:%d:%s%d:0x%llx %d "
+ "(TS=%s,M=%s%d,W=%s%d) %x\n",
+ fpioc->fp_os.fp_class_nm, fpioc->fp_os.fp_version_nm,
+ fpioc->fp_os.fp_subtype_nm,
+ (fpadd.fp_flags & PF_OSFP_WSIZE_MOD) ? "%" :
+ (fpadd.fp_flags & PF_OSFP_WSIZE_MSS) ? "S" :
+ (fpadd.fp_flags & PF_OSFP_WSIZE_MTU) ? "T" :
+ (fpadd.fp_flags & PF_OSFP_WSIZE_DC) ? "*" : "",
+ fpadd.fp_wsize,
+ fpadd.fp_ttl,
+ (fpadd.fp_flags & PF_OSFP_DF) ? 1 : 0,
+ (fpadd.fp_flags & PF_OSFP_PSIZE_MOD) ? "%" :
+ (fpadd.fp_flags & PF_OSFP_PSIZE_DC) ? "*" : "",
+ fpadd.fp_psize,
+ (long long int)fpadd.fp_tcpopts, fpadd.fp_optcnt,
+ (fpadd.fp_flags & PF_OSFP_TS0) ? "0" : "",
+ (fpadd.fp_flags & PF_OSFP_MSS_MOD) ? "%" :
+ (fpadd.fp_flags & PF_OSFP_MSS_DC) ? "*" : "",
+ fpadd.fp_mss,
+ (fpadd.fp_flags & PF_OSFP_WSCALE_MOD) ? "%" :
+ (fpadd.fp_flags & PF_OSFP_WSCALE_DC) ? "*" : "",
+ fpadd.fp_wscale,
+ fpioc->fp_os.fp_os);
+
+
+ if ((fp = pf_osfp_find_exact(&pf_osfp_list, &fpadd))) {
+ SLIST_FOREACH(entry, &fp->fp_oses, fp_entry) {
+ if (PF_OSFP_ENTRY_EQ(entry, &fpioc->fp_os))
+ return (EEXIST);
+ }
+ if ((entry = pool_get(&pf_osfp_entry_pl, PR_WAITOK)) == NULL)
+ return (ENOMEM);
+ } else {
+ if ((fp = pool_get(&pf_osfp_pl, PR_WAITOK)) == NULL)
+ return (ENOMEM);
+ memset(fp, 0, sizeof (*fp));
+ fp->fp_tcpopts = fpioc->fp_tcpopts;
+ fp->fp_wsize = fpioc->fp_wsize;
+ fp->fp_psize = fpioc->fp_psize;
+ fp->fp_mss = fpioc->fp_mss;
+ fp->fp_flags = fpioc->fp_flags;
+ fp->fp_optcnt = fpioc->fp_optcnt;
+ fp->fp_wscale = fpioc->fp_wscale;
+ fp->fp_ttl = fpioc->fp_ttl;
+ SLIST_INIT(&fp->fp_oses);
+ if ((entry = pool_get(&pf_osfp_entry_pl, PR_WAITOK)) == NULL) {
+ pool_put(&pf_osfp_pl, fp);
+ return (ENOMEM);
+ }
+ pf_osfp_insert(&pf_osfp_list, fp);
+ }
+ memcpy(entry, &fpioc->fp_os, sizeof (*entry));
+
+ /* Make sure the strings are NUL terminated */
+ entry->fp_class_nm[sizeof (entry->fp_class_nm)-1] = '\0';
+ entry->fp_version_nm[sizeof (entry->fp_version_nm)-1] = '\0';
+ entry->fp_subtype_nm[sizeof (entry->fp_subtype_nm)-1] = '\0';
+
+ SLIST_INSERT_HEAD(&fp->fp_oses, entry, fp_entry);
+
+#ifdef PFDEBUG
+ if ((fp = pf_osfp_validate()))
+ printf("Invalid fingerprint list\n");
+#endif /* PFDEBUG */
+ return (0);
+}
+
+
+/* Find a fingerprint in the list */
+struct pf_os_fingerprint *
+pf_osfp_find(struct pf_osfp_list *list, struct pf_os_fingerprint *find,
+ u_int8_t ttldiff)
+{
+ struct pf_os_fingerprint *f;
+
+#define MATCH_INT(_MOD, _DC, _field) \
+ if ((f->fp_flags & _DC) == 0) { \
+ if ((f->fp_flags & _MOD) == 0) { \
+ if (f->_field != find->_field) \
+ continue; \
+ } else { \
+ if (f->_field == 0 || find->_field % f->_field) \
+ continue; \
+ } \
+ }
+
+ SLIST_FOREACH(f, list, fp_next) {
+ if (f->fp_tcpopts != find->fp_tcpopts ||
+ f->fp_optcnt != find->fp_optcnt ||
+ f->fp_ttl < find->fp_ttl ||
+ f->fp_ttl - find->fp_ttl > ttldiff ||
+ (f->fp_flags & (PF_OSFP_DF|PF_OSFP_TS0)) !=
+ (find->fp_flags & (PF_OSFP_DF|PF_OSFP_TS0)))
+ continue;
+
+ MATCH_INT(PF_OSFP_PSIZE_MOD, PF_OSFP_PSIZE_DC, fp_psize)
+ MATCH_INT(PF_OSFP_MSS_MOD, PF_OSFP_MSS_DC, fp_mss)
+ MATCH_INT(PF_OSFP_WSCALE_MOD, PF_OSFP_WSCALE_DC, fp_wscale)
+ if ((f->fp_flags & PF_OSFP_WSIZE_DC) == 0) {
+ if (f->fp_flags & PF_OSFP_WSIZE_MSS) {
+ if (find->fp_mss == 0)
+ continue;
+
+/*
+ * Some "smart" NAT devices and DSL routers will tweak the MSS size and
+ * will set it to whatever is suitable for the link type.
+ */
+#define SMART_MSS 1460
+ if ((find->fp_wsize % find->fp_mss ||
+ find->fp_wsize / find->fp_mss !=
+ f->fp_wsize) &&
+ (find->fp_wsize % SMART_MSS ||
+ find->fp_wsize / SMART_MSS !=
+ f->fp_wsize))
+ continue;
+ } else if (f->fp_flags & PF_OSFP_WSIZE_MTU) {
+ if (find->fp_mss == 0)
+ continue;
+
+#define MTUOFF (sizeof (struct ip) + sizeof (struct tcphdr))
+#define SMART_MTU (SMART_MSS + MTUOFF)
+ if ((find->fp_wsize % (find->fp_mss + MTUOFF) ||
+ find->fp_wsize / (find->fp_mss + MTUOFF) !=
+ f->fp_wsize) &&
+ (find->fp_wsize % SMART_MTU ||
+ find->fp_wsize / SMART_MTU !=
+ f->fp_wsize))
+ continue;
+ } else if (f->fp_flags & PF_OSFP_WSIZE_MOD) {
+ if (f->fp_wsize == 0 || find->fp_wsize %
+ f->fp_wsize)
+ continue;
+ } else {
+ if (f->fp_wsize != find->fp_wsize)
+ continue;
+ }
+ }
+ return (f);
+ }
+
+ return (NULL);
+}
+
+/* Find an exact fingerprint in the list */
+struct pf_os_fingerprint *
+pf_osfp_find_exact(struct pf_osfp_list *list, struct pf_os_fingerprint *find)
+{
+ struct pf_os_fingerprint *f;
+
+ SLIST_FOREACH(f, list, fp_next) {
+ if (f->fp_tcpopts == find->fp_tcpopts &&
+ f->fp_wsize == find->fp_wsize &&
+ f->fp_psize == find->fp_psize &&
+ f->fp_mss == find->fp_mss &&
+ f->fp_flags == find->fp_flags &&
+ f->fp_optcnt == find->fp_optcnt &&
+ f->fp_wscale == find->fp_wscale &&
+ f->fp_ttl == find->fp_ttl)
+ return (f);
+ }
+
+ return (NULL);
+}
+
+/* Insert a fingerprint into the list */
+void
+pf_osfp_insert(struct pf_osfp_list *list, struct pf_os_fingerprint *ins)
+{
+ struct pf_os_fingerprint *f, *prev = NULL;
+
+ /* XXX need to go semi tree based. can key on tcp options */
+
+ SLIST_FOREACH(f, list, fp_next)
+ prev = f;
+ if (prev)
+ SLIST_INSERT_AFTER(prev, ins, fp_next);
+ else
+ SLIST_INSERT_HEAD(list, ins, fp_next);
+}
+
+/* Fill a fingerprint by its number (from an ioctl) */
+int
+pf_osfp_get(struct pf_osfp_ioctl *fpioc)
+{
+ struct pf_os_fingerprint *fp;
+ struct pf_osfp_entry *entry;
+ int num = fpioc->fp_getnum;
+ int i = 0;
+
+
+ memset(fpioc, 0, sizeof (*fpioc));
+ SLIST_FOREACH(fp, &pf_osfp_list, fp_next) {
+ SLIST_FOREACH(entry, &fp->fp_oses, fp_entry) {
+ if (i++ == num) {
+ fpioc->fp_mss = fp->fp_mss;
+ fpioc->fp_wsize = fp->fp_wsize;
+ fpioc->fp_flags = fp->fp_flags;
+ fpioc->fp_psize = fp->fp_psize;
+ fpioc->fp_ttl = fp->fp_ttl;
+ fpioc->fp_wscale = fp->fp_wscale;
+ fpioc->fp_getnum = num;
+ memcpy(&fpioc->fp_os, entry,
+ sizeof (fpioc->fp_os));
+ return (0);
+ }
+ }
+ }
+
+ return (EBUSY);
+}
+
+
+/* Validate that each signature is reachable */
+struct pf_os_fingerprint *
+pf_osfp_validate(void)
+{
+ struct pf_os_fingerprint *f, *f2, find;
+
+ SLIST_FOREACH(f, &pf_osfp_list, fp_next) {
+ memcpy(&find, f, sizeof (find));
+
+ /* We do a few MSS/th_win percolations to make things unique */
+ if (find.fp_mss == 0)
+ find.fp_mss = 128;
+ if (f->fp_flags & PF_OSFP_WSIZE_MSS)
+ find.fp_wsize *= find.fp_mss, 1;
+ else if (f->fp_flags & PF_OSFP_WSIZE_MTU)
+ find.fp_wsize *= (find.fp_mss + 40);
+ else if (f->fp_flags & PF_OSFP_WSIZE_MOD)
+ find.fp_wsize *= 2;
+ if (f != (f2 = pf_osfp_find(&pf_osfp_list, &find, 0))) {
+ if (f2)
+ printf("Found \"%s %s %s\" instead of "
+ "\"%s %s %s\"\n",
+ SLIST_FIRST(&f2->fp_oses)->fp_class_nm,
+ SLIST_FIRST(&f2->fp_oses)->fp_version_nm,
+ SLIST_FIRST(&f2->fp_oses)->fp_subtype_nm,
+ SLIST_FIRST(&f->fp_oses)->fp_class_nm,
+ SLIST_FIRST(&f->fp_oses)->fp_version_nm,
+ SLIST_FIRST(&f->fp_oses)->fp_subtype_nm);
+ else
+ printf("Couldn't find \"%s %s %s\"\n",
+ SLIST_FIRST(&f->fp_oses)->fp_class_nm,
+ SLIST_FIRST(&f->fp_oses)->fp_version_nm,
+ SLIST_FIRST(&f->fp_oses)->fp_subtype_nm);
+ return (f);
+ }
+ }
+ return (NULL);
+}
projects / apple / xnu.git / blobdiff