Bug Summary

File:src/sbin/pfctl/pfctl_parser.c
Warning:line 1075, column 4
Value stored to 'ropts' is never read

Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd7.4 -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name pfctl_parser.c -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/sbin/pfctl/obj -resource-dir /usr/local/llvm16/lib/clang/16 -I /usr/src/sbin/pfctl -internal-isystem /usr/local/llvm16/lib/clang/16/include -internal-externc-isystem /usr/include -O2 -Wno-uninitialized -fdebug-compilation-dir=/usr/src/sbin/pfctl/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fcf-protection=branch -fno-jump-tables -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/scan/2024-01-11-140451-98009-1 -x c /usr/src/sbin/pfctl/pfctl_parser.c
1/* $OpenBSD: pfctl_parser.c,v 1.349 2023/10/26 16:26:01 deraadt Exp $ */
2
3/*
4 * Copyright (c) 2001 Daniel Hartmeier
5 * Copyright (c) 2002 - 2013 Henning Brauer <henning@openbsd.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * - Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * - Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials provided
17 * with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
22 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
23 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
25 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
26 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
29 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 */
33
34#include <sys/types.h>
35#include <sys/ioctl.h>
36#include <sys/socket.h>
37#include <net/if_dl.h>
38#include <net/if.h>
39#include <netinet/in.h>
40#include <netinet/ip.h>
41#include <netinet/ip_icmp.h>
42#include <netinet/icmp6.h>
43#include <net/pfvar.h>
44#include <arpa/inet.h>
45
46#include <ctype.h>
47#include <err.h>
48#include <errno(*__errno()).h>
49#include <ifaddrs.h>
50#include <limits.h>
51#include <netdb.h>
52#include <stdarg.h>
53#include <stdio.h>
54#include <stdlib.h>
55#include <string.h>
56#include <time.h>
57#include <unistd.h>
58
59#define SYSLOG_NAMES
60#include <syslog.h>
61
62#include "pfctl_parser.h"
63#include "pfctl.h"
64
65#ifndef nitems
66#define nitems(_a)(sizeof((_a)) / sizeof((_a)[0])) (sizeof((_a)) / sizeof((_a)[0]))
67#endif
68
69void print_op (u_int8_t, const char *, const char *);
70void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int);
71void print_ugid (u_int8_t, id_t, id_t, const char *);
72void print_flags (u_int8_t);
73void print_fromto(struct pf_rule_addr *, pf_osfp_t,
74 struct pf_rule_addr *, u_int8_t, u_int8_t, int);
75void print_bwspec(const char *index, struct pf_queue_bwspec *);
76void print_scspec(const char *, struct pf_queue_scspec *);
77int ifa_skip_if(const char *filter, struct node_host *p);
78
79struct node_host *ifa_grouplookup(const char *, int);
80struct node_host *host_if(const char *, int);
81struct node_host *host_ip(const char *, int);
82struct node_host *host_dns(const char *, int, int);
83
84const char *tcpflags = "FSRPAUEW";
85
86static const struct icmptypeent icmp_type[] = {
87 { "echoreq", ICMP_ECHO8 },
88 { "echorep", ICMP_ECHOREPLY0 },
89 { "unreach", ICMP_UNREACH3 },
90 { "squench", ICMP_SOURCEQUENCH4 },
91 { "redir", ICMP_REDIRECT5 },
92 { "althost", ICMP_ALTHOSTADDR6 },
93 { "routeradv", ICMP_ROUTERADVERT9 },
94 { "routersol", ICMP_ROUTERSOLICIT10 },
95 { "timex", ICMP_TIMXCEED11 },
96 { "paramprob", ICMP_PARAMPROB12 },
97 { "timereq", ICMP_TSTAMP13 },
98 { "timerep", ICMP_TSTAMPREPLY14 },
99 { "inforeq", ICMP_IREQ15 },
100 { "inforep", ICMP_IREQREPLY16 },
101 { "maskreq", ICMP_MASKREQ17 },
102 { "maskrep", ICMP_MASKREPLY18 },
103 { "trace", ICMP_TRACEROUTE30 },
104 { "dataconv", ICMP_DATACONVERR31 },
105 { "mobredir", ICMP_MOBILE_REDIRECT32 },
106 { "ipv6-where", ICMP_IPV6_WHEREAREYOU33 },
107 { "ipv6-here", ICMP_IPV6_IAMHERE34 },
108 { "mobregreq", ICMP_MOBILE_REGREQUEST35 },
109 { "mobregrep", ICMP_MOBILE_REGREPLY36 },
110 { "skip", ICMP_SKIP39 },
111 { "photuris", ICMP_PHOTURIS40 }
112};
113
114static const struct icmptypeent icmp6_type[] = {
115 { "unreach", ICMP6_DST_UNREACH1 },
116 { "toobig", ICMP6_PACKET_TOO_BIG2 },
117 { "timex", ICMP6_TIME_EXCEEDED3 },
118 { "paramprob", ICMP6_PARAM_PROB4 },
119 { "echoreq", ICMP6_ECHO_REQUEST128 },
120 { "echorep", ICMP6_ECHO_REPLY129 },
121 { "groupqry", ICMP6_MEMBERSHIP_QUERY130 },
122 { "listqry", MLD_LISTENER_QUERY130 },
123 { "grouprep", ICMP6_MEMBERSHIP_REPORT131 },
124 { "listenrep", MLD_LISTENER_REPORT131 },
125 { "groupterm", ICMP6_MEMBERSHIP_REDUCTION132 },
126 { "listendone", MLD_LISTENER_DONE132 },
127 { "routersol", ND_ROUTER_SOLICIT133 },
128 { "routeradv", ND_ROUTER_ADVERT134 },
129 { "neighbrsol", ND_NEIGHBOR_SOLICIT135 },
130 { "neighbradv", ND_NEIGHBOR_ADVERT136 },
131 { "redir", ND_REDIRECT137 },
132 { "routrrenum", ICMP6_ROUTER_RENUMBERING138 },
133 { "wrureq", ICMP6_WRUREQUEST139 },
134 { "wrurep", ICMP6_WRUREPLY140 },
135 { "fqdnreq", ICMP6_FQDN_QUERY139 },
136 { "fqdnrep", ICMP6_FQDN_REPLY140 },
137 { "niqry", ICMP6_NI_QUERY139 },
138 { "nirep", ICMP6_NI_REPLY140 },
139 { "mtraceresp", MLD_MTRACE_RESP200 },
140 { "mtrace", MLD_MTRACE201 },
141 { "listenrepv2", MLDV2_LISTENER_REPORT143 },
142};
143
144static const struct icmpcodeent icmp_code[] = {
145 { "net-unr", ICMP_UNREACH3, ICMP_UNREACH_NET0 },
146 { "host-unr", ICMP_UNREACH3, ICMP_UNREACH_HOST1 },
147 { "proto-unr", ICMP_UNREACH3, ICMP_UNREACH_PROTOCOL2 },
148 { "port-unr", ICMP_UNREACH3, ICMP_UNREACH_PORT3 },
149 { "needfrag", ICMP_UNREACH3, ICMP_UNREACH_NEEDFRAG4 },
150 { "srcfail", ICMP_UNREACH3, ICMP_UNREACH_SRCFAIL5 },
151 { "net-unk", ICMP_UNREACH3, ICMP_UNREACH_NET_UNKNOWN6 },
152 { "host-unk", ICMP_UNREACH3, ICMP_UNREACH_HOST_UNKNOWN7 },
153 { "isolate", ICMP_UNREACH3, ICMP_UNREACH_ISOLATED8 },
154 { "net-prohib", ICMP_UNREACH3, ICMP_UNREACH_NET_PROHIB9 },
155 { "host-prohib", ICMP_UNREACH3, ICMP_UNREACH_HOST_PROHIB10 },
156 { "net-tos", ICMP_UNREACH3, ICMP_UNREACH_TOSNET11 },
157 { "host-tos", ICMP_UNREACH3, ICMP_UNREACH_TOSHOST12 },
158 { "filter-prohib", ICMP_UNREACH3, ICMP_UNREACH_FILTER_PROHIB13 },
159 { "host-preced", ICMP_UNREACH3, ICMP_UNREACH_HOST_PRECEDENCE14 },
160 { "cutoff-preced", ICMP_UNREACH3, ICMP_UNREACH_PRECEDENCE_CUTOFF15 },
161 { "redir-net", ICMP_REDIRECT5, ICMP_REDIRECT_NET0 },
162 { "redir-host", ICMP_REDIRECT5, ICMP_REDIRECT_HOST1 },
163 { "redir-tos-net", ICMP_REDIRECT5, ICMP_REDIRECT_TOSNET2 },
164 { "redir-tos-host", ICMP_REDIRECT5, ICMP_REDIRECT_TOSHOST3 },
165 { "normal-adv", ICMP_ROUTERADVERT9, ICMP_ROUTERADVERT_NORMAL0 },
166 { "common-adv", ICMP_ROUTERADVERT9, ICMP_ROUTERADVERT_NOROUTE_COMMON16 },
167 { "transit", ICMP_TIMXCEED11, ICMP_TIMXCEED_INTRANS0 },
168 { "reassemb", ICMP_TIMXCEED11, ICMP_TIMXCEED_REASS1 },
169 { "badhead", ICMP_PARAMPROB12, ICMP_PARAMPROB_ERRATPTR0 },
170 { "optmiss", ICMP_PARAMPROB12, ICMP_PARAMPROB_OPTABSENT1 },
171 { "badlen", ICMP_PARAMPROB12, ICMP_PARAMPROB_LENGTH2 },
172 { "unknown-ind", ICMP_PHOTURIS40, ICMP_PHOTURIS_UNKNOWN_INDEX1 },
173 { "auth-fail", ICMP_PHOTURIS40, ICMP_PHOTURIS_AUTH_FAILED2 },
174 { "decrypt-fail", ICMP_PHOTURIS40, ICMP_PHOTURIS_DECRYPT_FAILED3 }
175};
176
177static const struct icmpcodeent icmp6_code[] = {
178 { "admin-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_ADMIN1 },
179 { "noroute-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_NOROUTE0 },
180 { "beyond-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_BEYONDSCOPE2 },
181 { "addr-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_ADDR3 },
182 { "port-unr", ICMP6_DST_UNREACH1, ICMP6_DST_UNREACH_NOPORT4 },
183 { "transit", ICMP6_TIME_EXCEEDED3, ICMP6_TIME_EXCEED_TRANSIT0 },
184 { "reassemb", ICMP6_TIME_EXCEEDED3, ICMP6_TIME_EXCEED_REASSEMBLY1 },
185 { "badhead", ICMP6_PARAM_PROB4, ICMP6_PARAMPROB_HEADER0 },
186 { "nxthdr", ICMP6_PARAM_PROB4, ICMP6_PARAMPROB_NEXTHEADER1 },
187 { "redironlink", ND_REDIRECT137, ND_REDIRECT_ONLINK0 },
188 { "redirrouter", ND_REDIRECT137, ND_REDIRECT_ROUTER1 }
189};
190
191const struct pf_timeout pf_timeouts[] = {
192 { "tcp.first", PFTM_TCP_FIRST_PACKET },
193 { "tcp.opening", PFTM_TCP_OPENING },
194 { "tcp.established", PFTM_TCP_ESTABLISHED },
195 { "tcp.closing", PFTM_TCP_CLOSING },
196 { "tcp.finwait", PFTM_TCP_FIN_WAIT },
197 { "tcp.closed", PFTM_TCP_CLOSED },
198 { "tcp.tsdiff", PFTM_TS_DIFF },
199 { "udp.first", PFTM_UDP_FIRST_PACKET },
200 { "udp.single", PFTM_UDP_SINGLE },
201 { "udp.multiple", PFTM_UDP_MULTIPLE },
202 { "icmp.first", PFTM_ICMP_FIRST_PACKET },
203 { "icmp.error", PFTM_ICMP_ERROR_REPLY },
204 { "other.first", PFTM_OTHER_FIRST_PACKET },
205 { "other.single", PFTM_OTHER_SINGLE },
206 { "other.multiple", PFTM_OTHER_MULTIPLE },
207 { "frag", PFTM_FRAG },
208 { "interval", PFTM_INTERVAL },
209 { "adaptive.start", PFTM_ADAPTIVE_START },
210 { "adaptive.end", PFTM_ADAPTIVE_END },
211 { "src.track", PFTM_SRC_NODE },
212 { NULL((void *)0), 0 }
213};
214
215enum { PF_POOL_ROUTE, PF_POOL_NAT, PF_POOL_RDR };
216
217void
218copy_satopfaddr(struct pf_addr *pfa, struct sockaddr *sa)
219{
220 if (sa->sa_family == AF_INET624)
221 pfa->v6pfa.v6 = ((struct sockaddr_in6 *)sa)->sin6_addr;
222 else if (sa->sa_family == AF_INET2)
223 pfa->v4pfa.v4 = ((struct sockaddr_in *)sa)->sin_addr;
224 else
225 warnx("unhandled af %d", sa->sa_family);
226}
227
228const struct icmptypeent *
229geticmptypebynumber(u_int8_t type, sa_family_t af)
230{
231 size_t i;
232
233 if (af != AF_INET624) {
234 for (i = 0; i < nitems(icmp_type)(sizeof((icmp_type)) / sizeof((icmp_type)[0])); i++) {
235 if (type == icmp_type[i].type)
236 return (&icmp_type[i]);
237 }
238 } else {
239 for (i = 0; i < nitems(icmp6_type)(sizeof((icmp6_type)) / sizeof((icmp6_type)[0])); i++) {
240 if (type == icmp6_type[i].type)
241 return (&icmp6_type[i]);
242 }
243 }
244 return (NULL((void *)0));
245}
246
247const struct icmptypeent *
248geticmptypebyname(char *w, sa_family_t af)
249{
250 size_t i;
251
252 if (af != AF_INET624) {
253 for (i = 0; i < nitems(icmp_type)(sizeof((icmp_type)) / sizeof((icmp_type)[0])); i++) {
254 if (!strcmp(w, icmp_type[i].name))
255 return (&icmp_type[i]);
256 }
257 } else {
258 for (i = 0; i < nitems(icmp6_type)(sizeof((icmp6_type)) / sizeof((icmp6_type)[0])); i++) {
259 if (!strcmp(w, icmp6_type[i].name))
260 return (&icmp6_type[i]);
261 }
262 }
263 return (NULL((void *)0));
264}
265
266const struct icmpcodeent *
267geticmpcodebynumber(u_int8_t type, u_int8_t code, sa_family_t af)
268{
269 size_t i;
270
271 if (af != AF_INET624) {
272 for (i = 0; i < nitems(icmp_code)(sizeof((icmp_code)) / sizeof((icmp_code)[0])); i++) {
273 if (type == icmp_code[i].type &&
274 code == icmp_code[i].code)
275 return (&icmp_code[i]);
276 }
277 } else {
278 for (i = 0; i < nitems(icmp6_code)(sizeof((icmp6_code)) / sizeof((icmp6_code)[0])); i++) {
279 if (type == icmp6_code[i].type &&
280 code == icmp6_code[i].code)
281 return (&icmp6_code[i]);
282 }
283 }
284 return (NULL((void *)0));
285}
286
287const struct icmpcodeent *
288geticmpcodebyname(u_long type, char *w, sa_family_t af)
289{
290 size_t i;
291
292 if (af != AF_INET624) {
293 for (i = 0; i < nitems(icmp_code)(sizeof((icmp_code)) / sizeof((icmp_code)[0])); i++) {
294 if (type == icmp_code[i].type &&
295 !strcmp(w, icmp_code[i].name))
296 return (&icmp_code[i]);
297 }
298 } else {
299 for (i = 0; i < nitems(icmp6_code)(sizeof((icmp6_code)) / sizeof((icmp6_code)[0])); i++) {
300 if (type == icmp6_code[i].type &&
301 !strcmp(w, icmp6_code[i].name))
302 return (&icmp6_code[i]);
303 }
304 }
305 return (NULL((void *)0));
306}
307
308/*
309 * Decode a symbolic name to a numeric value.
310 * From syslogd.
311 */
312int
313string_to_loglevel(const char *name)
314{
315 CODE *c;
316 char *p, buf[40];
317
318 if (isdigit((unsigned char)*name)) {
319 const char *errstr;
320 int val;
321
322 val = strtonum(name, 0, LOG_DEBUG7, &errstr);
323 if (errstr)
324 return -1;
325 return val;
326 }
327
328 for (p = buf; *name && p < &buf[sizeof(buf) - 1]; p++, name++) {
329 if (isupper((unsigned char)*name))
330 *p = tolower((unsigned char)*name);
331 else
332 *p = *name;
333 }
334 *p = '\0';
335 for (c = prioritynames; c->c_name; c++)
336 if (!strcmp(buf, c->c_name) && c->c_val != INTERNAL_NOPRI0x10)
337 return (c->c_val);
338
339 return (-1);
340}
341
342const char *
343loglevel_to_string(int level)
344{
345 CODE *c;
346
347 for (c = prioritynames; c->c_name; c++)
348 if (c->c_val == level)
349 return (c->c_name);
350
351 return ("unknown");
352}
353
354void
355print_op(u_int8_t op, const char *a1, const char *a2)
356{
357 if (op == PF_OP_IRG)
358 printf(" %s >< %s", a1, a2);
359 else if (op == PF_OP_XRG)
360 printf(" %s <> %s", a1, a2);
361 else if (op == PF_OP_EQ)
362 printf(" = %s", a1);
363 else if (op == PF_OP_NE)
364 printf(" != %s", a1);
365 else if (op == PF_OP_LT)
366 printf(" < %s", a1);
367 else if (op == PF_OP_LE)
368 printf(" <= %s", a1);
369 else if (op == PF_OP_GT)
370 printf(" > %s", a1);
371 else if (op == PF_OP_GE)
372 printf(" >= %s", a1);
373 else if (op == PF_OP_RRG)
374 printf(" %s:%s", a1, a2);
375}
376
377void
378print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int opts)
379{
380 char a1[6], a2[6];
381 struct servent *s = NULL((void *)0);
382
383 if (opts & PF_OPT_PORTNAMES0x08000)
384 s = getservbyport(p1, proto);
385 p1 = ntohs(p1)(__uint16_t)(__builtin_constant_p(p1) ? (__uint16_t)(((__uint16_t
)(p1) & 0xffU) << 8 | ((__uint16_t)(p1) & 0xff00U
) >> 8) : __swap16md(p1));
386 p2 = ntohs(p2)(__uint16_t)(__builtin_constant_p(p2) ? (__uint16_t)(((__uint16_t
)(p2) & 0xffU) << 8 | ((__uint16_t)(p2) & 0xff00U
) >> 8) : __swap16md(p2));
387 snprintf(a1, sizeof(a1), "%u", p1);
388 snprintf(a2, sizeof(a2), "%u", p2);
389 printf(" port");
390 if (s != NULL((void *)0) && (op == PF_OP_EQ || op == PF_OP_NE))
391 print_op(op, s->s_name, a2);
392 else
393 print_op(op, a1, a2);
394}
395
396void
397print_ugid(u_int8_t op, id_t i1, id_t i2, const char *t)
398{
399 char a1[11], a2[11];
400
401 snprintf(a1, sizeof(a1), "%u", i1);
402 snprintf(a2, sizeof(a2), "%u", i2);
403 printf(" %s", t);
404 if (i1 == -1 && (op == PF_OP_EQ || op == PF_OP_NE))
405 print_op(op, "unknown", a2);
406 else
407 print_op(op, a1, a2);
408}
409
410void
411print_flags(u_int8_t f)
412{
413 int i;
414
415 for (i = 0; tcpflags[i]; ++i)
416 if (f & (1 << i))
417 printf("%c", tcpflags[i]);
418}
419
420void
421print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
422 sa_family_t af, u_int8_t proto, int opts)
423{
424 char buf[PF_OSFP_LEN32*3];
425 int verbose = opts & (PF_OPT_VERBOSE20x00080 | PF_OPT_DEBUG0x00200);
426 if (src->addr.type == PF_ADDR_ADDRMASK &&
427 dst->addr.type == PF_ADDR_ADDRMASK &&
428 PF_AZERO(&src->addr.v.a.addr, AF_INET6)((24 == 2 && !(&src->addr.v.a.addr)->pfa.addr32
[0]) || (24 == 24 && !(&src->addr.v.a.addr)->
pfa.addr32[0] && !(&src->addr.v.a.addr)->pfa
.addr32[1] && !(&src->addr.v.a.addr)->pfa.addr32
[2] && !(&src->addr.v.a.addr)->pfa.addr32[3
] )) &&
429 PF_AZERO(&src->addr.v.a.mask, AF_INET6)((24 == 2 && !(&src->addr.v.a.mask)->pfa.addr32
[0]) || (24 == 24 && !(&src->addr.v.a.mask)->
pfa.addr32[0] && !(&src->addr.v.a.mask)->pfa
.addr32[1] && !(&src->addr.v.a.mask)->pfa.addr32
[2] && !(&src->addr.v.a.mask)->pfa.addr32[3
] )) &&
430 PF_AZERO(&dst->addr.v.a.addr, AF_INET6)((24 == 2 && !(&dst->addr.v.a.addr)->pfa.addr32
[0]) || (24 == 24 && !(&dst->addr.v.a.addr)->
pfa.addr32[0] && !(&dst->addr.v.a.addr)->pfa
.addr32[1] && !(&dst->addr.v.a.addr)->pfa.addr32
[2] && !(&dst->addr.v.a.addr)->pfa.addr32[3
] )) &&
431 PF_AZERO(&dst->addr.v.a.mask, AF_INET6)((24 == 2 && !(&dst->addr.v.a.mask)->pfa.addr32
[0]) || (24 == 24 && !(&dst->addr.v.a.mask)->
pfa.addr32[0] && !(&dst->addr.v.a.mask)->pfa
.addr32[1] && !(&dst->addr.v.a.mask)->pfa.addr32
[2] && !(&dst->addr.v.a.mask)->pfa.addr32[3
] )) &&
432 !src->neg && !dst->neg &&
433 !src->port_op && !dst->port_op &&
434 osfp == PF_OSFP_ANY((pf_osfp_t)0))
435 printf(" all");
436 else {
437 printf(" from ");
438 if (src->neg)
439 printf("! ");
440 print_addr(&src->addr, af, verbose);
441 if (src->port_op)
442 print_port(src->port_op, src->port[0],
443 src->port[1],
444 proto == IPPROTO_TCP6 ? "tcp" : "udp", opts);
445 if (osfp != PF_OSFP_ANY((pf_osfp_t)0))
446 printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf,
447 sizeof(buf)));
448
449 printf(" to ");
450 if (dst->neg)
451 printf("! ");
452 print_addr(&dst->addr, af, verbose);
453 if (dst->port_op)
454 print_port(dst->port_op, dst->port[0],
455 dst->port[1],
456 proto == IPPROTO_TCP6 ? "tcp" : "udp", opts);
457 }
458}
459
460void
461print_pool(struct pf_pool *pool, u_int16_t p1, u_int16_t p2,
462 sa_family_t af, int id, int verbose)
463{
464 if (pool->ifname[0]) {
465 if (!PF_AZERO(&pool->addr.v.a.addr, af)((af == 2 && !(&pool->addr.v.a.addr)->pfa.addr32
[0]) || (af == 24 && !(&pool->addr.v.a.addr)->
pfa.addr32[0] && !(&pool->addr.v.a.addr)->pfa
.addr32[1] && !(&pool->addr.v.a.addr)->pfa.
addr32[2] && !(&pool->addr.v.a.addr)->pfa.addr32
[3] ))) {
466 print_addr(&pool->addr, af, verbose);
467 printf("@");
468 }
469 printf("%s", pool->ifname);
470 } else
471 print_addr(&pool->addr, af, verbose);
472 switch (id) {
473 case PF_POOL_NAT:
474 if ((p1 != PF_NAT_PROXY_PORT_LOW50001 ||
475 p2 != PF_NAT_PROXY_PORT_HIGH65535) && (p1 != 0 || p2 != 0)) {
476 if (p1 == p2)
477 printf(" port %u", p1);
478 else
479 printf(" port %u:%u", p1, p2);
480 }
481 break;
482 case PF_POOL_RDR:
483 if (p1) {
484 printf(" port %u", p1);
485 if (p2 && (p2 != p1))
486 printf(":%u", p2);
487 }
488 break;
489 default:
490 break;
491 }
492 switch (pool->opts & PF_POOL_TYPEMASK0x0f) {
493 case PF_POOL_NONE:
494 break;
495 case PF_POOL_BITMASK:
496 printf(" bitmask");
497 break;
498 case PF_POOL_RANDOM:
499 printf(" random");
500 break;
501 case PF_POOL_SRCHASH:
502 printf(" source-hash 0x%08x%08x%08x%08x",
503 pool->key.key32pfk.key32[0], pool->key.key32pfk.key32[1],
504 pool->key.key32pfk.key32[2], pool->key.key32pfk.key32[3]);
505 break;
506 case PF_POOL_ROUNDROBIN:
507 printf(" round-robin");
508 break;
509 case PF_POOL_LEASTSTATES:
510 printf(" least-states");
511 break;
512 }
513 if (pool->opts & PF_POOL_STICKYADDR0x20)
514 printf(" sticky-address");
515 if (id == PF_POOL_NAT && p1 == 0 && p2 == 0)
516 printf(" static-port");
517}
518
519const char *pf_reasons[PFRES_MAX17+1] = PFRES_NAMES{ "match", "bad-offset", "fragment", "short", "normalize", "memory"
, "bad-timestamp", "congestion", "ip-option", "proto-cksum", "state-mismatch"
, "state-insert", "state-limit", "src-limit", "synproxy", "translate"
, "no-route", ((void *)0) };
520const char *pf_lcounters[LCNT_MAX10+1] = LCNT_NAMES{ "max states per rule", "max-src-states", "max-src-nodes", "max-src-conn"
, "max-src-conn-rate", "overload table insertion", "overload flush states"
, "synfloods detected", "syncookies sent", "syncookies validated"
, ((void *)0) };
521const char *pf_fcounters[FCNT_MAX3+1] = FCNT_NAMES{ "searches", "inserts", "removals", ((void *)0) };
522const char *pf_scounters[FCNT_MAX3+1] = FCNT_NAMES{ "searches", "inserts", "removals", ((void *)0) };
523
524void
525print_status(struct pf_status *s, struct pfctl_watermarks *synflwats, int opts)
526{
527 char statline[80], *running, *debug;
528 time_t runtime = 0;
529 struct timespec uptime;
530 int i;
531 char buf[PF_MD5_DIGEST_LENGTH16 * 2 + 1];
532 static const char hex[] = "0123456789abcdef";
533
534 if (!clock_gettime(CLOCK_BOOTTIME6, &uptime))
535 runtime = uptime.tv_sec - s->since;
536 running = s->running ? "Enabled" : "Disabled";
537
538 if (runtime) {
539 unsigned int sec, min, hrs;
540 time_t day = runtime;
541
542 sec = day % 60;
543 day /= 60;
544 min = day % 60;
545 day /= 60;
546 hrs = day % 24;
547 day /= 24;
548 snprintf(statline, sizeof(statline),
549 "Status: %s for %lld days %.2u:%.2u:%.2u",
550 running, (long long)day, hrs, min, sec);
551 } else
552 snprintf(statline, sizeof(statline), "Status: %s", running);
553 printf("%-44s", statline);
554 if (asprintf(&debug, "Debug: %s", loglevel_to_string(s->debug)) != -1) {
555 printf("%15s\n\n", debug);
556 free(debug);
557 }
558
559 if (opts & PF_OPT_VERBOSE0x00004) {
560 printf("Hostid: 0x%08x\n", ntohl(s->hostid)(__uint32_t)(__builtin_constant_p(s->hostid) ? (__uint32_t
)(((__uint32_t)(s->hostid) & 0xff) << 24 | ((__uint32_t
)(s->hostid) & 0xff00) << 8 | ((__uint32_t)(s->
hostid) & 0xff0000) >> 8 | ((__uint32_t)(s->hostid
) & 0xff000000) >> 24) : __swap32md(s->hostid)));
561
562 for (i = 0; i < PF_MD5_DIGEST_LENGTH16; i++) {
563 buf[i + i] = hex[s->pf_chksum[i] >> 4];
564 buf[i + i + 1] = hex[s->pf_chksum[i] & 0x0f];
565 }
566 buf[i + i] = '\0';
567 printf("Checksum: 0x%s\n\n", buf);
568 }
569
570 if (s->ifname[0] != 0) {
571 printf("Interface Stats for %-16s %5s %16s\n",
572 s->ifname, "IPv4", "IPv6");
573 printf(" %-25s %14llu %16llu\n", "Bytes In",
574 (unsigned long long)s->bcounters[0][0],
575 (unsigned long long)s->bcounters[1][0]);
576 printf(" %-25s %14llu %16llu\n", "Bytes Out",
577 (unsigned long long)s->bcounters[0][1],
578 (unsigned long long)s->bcounters[1][1]);
579 printf(" Packets In\n");
580 printf(" %-23s %14llu %16llu\n", "Passed",
581 (unsigned long long)s->pcounters[0][0][PF_PASS],
582 (unsigned long long)s->pcounters[1][0][PF_PASS]);
583 printf(" %-23s %14llu %16llu\n", "Blocked",
584 (unsigned long long)s->pcounters[0][0][PF_DROP],
585 (unsigned long long)s->pcounters[1][0][PF_DROP]);
586 printf(" Packets Out\n");
587 printf(" %-23s %14llu %16llu\n", "Passed",
588 (unsigned long long)s->pcounters[0][1][PF_PASS],
589 (unsigned long long)s->pcounters[1][1][PF_PASS]);
590 printf(" %-23s %14llu %16llu\n\n", "Blocked",
591 (unsigned long long)s->pcounters[0][1][PF_DROP],
592 (unsigned long long)s->pcounters[1][1][PF_DROP]);
593 }
594 printf("%-27s %14s %16s\n", "State Table", "Total", "Rate");
595 printf(" %-25s %14u %14s\n", "current entries", s->states, "");
596 printf(" %-25s %14u %14s\n", "half-open tcp", s->states_halfopen, "");
597 for (i = 0; i < FCNT_MAX3; i++) {
598 printf(" %-25s %14llu ", pf_fcounters[i],
599 (unsigned long long)s->fcounters[i]);
600 if (runtime > 0)
601 printf("%14.1f/s\n",
602 (double)s->fcounters[i] / (double)runtime);
603 else
604 printf("%14s\n", "");
605 }
606 if (opts & PF_OPT_VERBOSE0x00004) {
607 printf("Source Tracking Table\n");
608 printf(" %-25s %14u %14s\n", "current entries",
609 s->src_nodes, "");
610 for (i = 0; i < SCNT_MAX3; i++) {
611 printf(" %-25s %14lld ", pf_scounters[i],
612 s->scounters[i]);
613 if (runtime > 0)
614 printf("%14.1f/s\n",
615 (double)s->scounters[i] / (double)runtime);
616 else
617 printf("%14s\n", "");
618 }
619 }
620 printf("Counters\n");
621 for (i = 0; i < PFRES_MAX17; i++) {
622 printf(" %-25s %14llu ", pf_reasons[i],
623 (unsigned long long)s->counters[i]);
624 if (runtime > 0)
625 printf("%14.1f/s\n",
626 (double)s->counters[i] / (double)runtime);
627 else
628 printf("%14s\n", "");
629 }
630 if (opts & PF_OPT_VERBOSE0x00004) {
631 printf("Limit Counters\n");
632 for (i = 0; i < LCNT_MAX10; i++) {
633 printf(" %-25s %14lld ", pf_lcounters[i],
634 s->lcounters[i]);
635 if (runtime > 0)
636 printf("%14.1f/s\n",
637 (double)s->lcounters[i] / (double)runtime);
638 else
639 printf("%14s\n", "");
640 }
641 }
642 if (opts & PF_OPT_VERBOSE0x00004) {
643 printf("Adaptive Syncookies Watermarks\n");
644 printf(" %-25s %14d states\n", "start", synflwats->hi);
645 printf(" %-25s %14d states\n", "end", synflwats->lo);
646 }
647}
648
649void
650print_src_node(struct pf_src_node *sn, int opts)
651{
652 struct pf_addr_wrap aw;
653 int min, sec;
654
655 memset(&aw, 0, sizeof(aw));
656 if (sn->af == AF_INET2)
657 aw.v.a.mask.addr32pfa.addr32[0] = 0xffffffff;
658 else
659 memset(&aw.v.a.mask, 0xff, sizeof(aw.v.a.mask));
660
661 aw.v.a.addr = sn->addr;
662 print_addr(&aw, sn->af, opts & PF_OPT_VERBOSE20x00080);
663
664 if (!PF_AZERO(&sn->raddr, sn->af)((sn->af == 2 && !(&sn->raddr)->pfa.addr32
[0]) || (sn->af == 24 && !(&sn->raddr)->
pfa.addr32[0] && !(&sn->raddr)->pfa.addr32[
1] && !(&sn->raddr)->pfa.addr32[2] &&
!(&sn->raddr)->pfa.addr32[3] ))) {
665 if (sn->type == PF_SN_NAT)
666 printf(" nat-to ");
667 else if (sn->type == PF_SN_RDR)
668 printf(" rdr-to ");
669 else if (sn->type == PF_SN_ROUTE)
670 printf(" route-to ");
671 else
672 printf(" ??? (%u) ", sn->type);
673 aw.v.a.addr = sn->raddr;
674 print_addr(&aw, sn->naf ? sn->naf : sn->af,
675 opts & PF_OPT_VERBOSE20x00080);
676 }
677
678 printf(" ( states %u, connections %u, rate %u.%u/%us )\n", sn->states,
679 sn->conn, sn->conn_rate.count / 1000,
680 (sn->conn_rate.count % 1000) / 100, sn->conn_rate.seconds);
681 if (opts & PF_OPT_VERBOSE0x00004) {
682 sec = sn->creation % 60;
683 sn->creation /= 60;
684 min = sn->creation % 60;
685 sn->creation /= 60;
686 printf(" age %.2u:%.2u:%.2u", sn->creation, min, sec);
687 if (sn->states == 0) {
688 sec = sn->expire % 60;
689 sn->expire /= 60;
690 min = sn->expire % 60;
691 sn->expire /= 60;
692 printf(", expires in %.2u:%.2u:%.2u",
693 sn->expire, min, sec);
694 }
695 printf(", %llu pkts, %llu bytes",
696 sn->packets[0] + sn->packets[1],
697 sn->bytes[0] + sn->bytes[1]);
698 if (sn->rule.nr != -1)
699 printf(", rule %u", sn->rule.nr);
700 printf("\n");
701 }
702}
703
704void
705print_rule(struct pf_rule *r, const char *anchor_call, int opts)
706{
707 static const char *actiontypes[] = { "pass", "block", "scrub",
708 "no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr",
709 "", "", "match"};
710 static const char *anchortypes[] = { "anchor", "anchor", "anchor",
711 "anchor", "nat-anchor", "nat-anchor", "binat-anchor",
712 "binat-anchor", "rdr-anchor", "rdr-anchor" };
713 int i, ropts;
714 int verbose = opts & (PF_OPT_VERBOSE20x00080 | PF_OPT_DEBUG0x00200);
715 char *p;
716
717 if ((r->rule_flag & PFRULE_EXPIRED0x00400000) && (!verbose))
718 return;
719
720 if (verbose)
721 printf("@%d ", r->nr);
722
723 if (r->action > PF_MATCH)
724 printf("action(%d)", r->action);
725 else if (anchor_call[0]) {
726 p = strrchr(anchor_call, '/');
727 if (p ? p[1] == '_' : anchor_call[0] == '_')
728 printf("%s", anchortypes[r->action]);
729 else
730 printf("%s \"%s\"", anchortypes[r->action],
731 anchor_call);
732 } else
733 printf("%s", actiontypes[r->action]);
734 if (r->action == PF_DROP) {
735 if (r->rule_flag & PFRULE_RETURN0x0008)
736 printf(" return");
737 else if (r->rule_flag & PFRULE_RETURNRST0x0001) {
738 if (!r->return_ttl)
739 printf(" return-rst");
740 else
741 printf(" return-rst(ttl %d)", r->return_ttl);
742 } else if (r->rule_flag & PFRULE_RETURNICMP0x0004) {
743 const struct icmpcodeent *ic, *ic6;
744
745 ic = geticmpcodebynumber(r->return_icmp >> 8,
746 r->return_icmp & 255, AF_INET2);
747 ic6 = geticmpcodebynumber(r->return_icmp6 >> 8,
748 r->return_icmp6 & 255, AF_INET624);
749
750 switch (r->af) {
751 case AF_INET2:
752 printf(" return-icmp");
753 if (ic == NULL((void *)0))
754 printf("(%u)", r->return_icmp & 255);
755 else
756 printf("(%s)", ic->name);
757 break;
758 case AF_INET624:
759 printf(" return-icmp6");
760 if (ic6 == NULL((void *)0))
761 printf("(%u)", r->return_icmp6 & 255);
762 else
763 printf("(%s)", ic6->name);
764 break;
765 default:
766 printf(" return-icmp");
767 if (ic == NULL((void *)0))
768 printf("(%u, ", r->return_icmp & 255);
769 else
770 printf("(%s, ", ic->name);
771 if (ic6 == NULL((void *)0))
772 printf("%u)", r->return_icmp6 & 255);
773 else
774 printf("%s)", ic6->name);
775 break;
776 }
777 } else
778 printf(" drop");
779 }
780 if (r->direction == PF_IN)
781 printf(" in");
782 else if (r->direction == PF_OUT)
783 printf(" out");
784 if (r->log) {
785 printf(" log");
786 if (r->log & ~PF_LOG0x01 || r->logif) {
787 int count = 0;
788
789 printf(" (");
790 if (r->log & PF_LOG_ALL0x02)
791 printf("%sall", count++ ? ", " : "");
792 if (r->log & PF_LOG_MATCHES0x10)
793 printf("%smatches", count++ ? ", " : "");
794 if (r->log & PF_LOG_USER0x04)
795 printf("%suser", count++ ? ", " : "");
796 if (r->logif)
797 printf("%sto pflog%u", count++ ? ", " : "",
798 r->logif);
799 printf(")");
800 }
801 }
802 if (r->quick)
803 printf(" quick");
804 if (r->ifname[0]) {
805 if (r->ifnot)
806 printf(" on ! %s", r->ifname);
807 else
808 printf(" on %s", r->ifname);
809 }
810 if (r->onrdomain >= 0) {
811 if (r->ifnot)
812 printf(" on ! rdomain %d", r->onrdomain);
813 else
814 printf(" on rdomain %d", r->onrdomain);
815 }
816 if (r->af) {
817 if (r->af == AF_INET2)
818 printf(" inet");
819 else
820 printf(" inet6");
821 }
822 if (r->proto) {
823 struct protoent *p;
824
825 if ((p = getprotobynumber(r->proto)) != NULL((void *)0))
826 printf(" proto %s", p->p_name);
827 else
828 printf(" proto %u", r->proto);
829 }
830 print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto,
831 opts);
832 if (r->rcv_ifname[0])
833 printf(" %sreceived-on %s", r->rcvifnot ? "!" : "",
834 r->rcv_ifname);
835 if (r->uid.op)
836 print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user");
837 if (r->gid.op)
838 print_ugid(r->gid.op, r->gid.gid[0], r->gid.gid[1], "group");
839 if (r->flags || r->flagset) {
840 printf(" flags ");
841 print_flags(r->flags);
842 printf("/");
843 print_flags(r->flagset);
844 } else if ((r->action == PF_PASS || r->action == PF_MATCH) &&
845 (!r->proto || r->proto == IPPROTO_TCP6) &&
846 !(r->rule_flag & PFRULE_FRAGMENT0x0002) &&
847 !anchor_call[0] && r->keep_state)
848 printf(" flags any");
849 if (r->type) {
850 const struct icmptypeent *it;
851
852 it = geticmptypebynumber(r->type-1, r->af);
853 if (r->af != AF_INET624)
854 printf(" icmp-type");
855 else
856 printf(" icmp6-type");
857 if (it != NULL((void *)0))
858 printf(" %s", it->name);
859 else
860 printf(" %u", r->type-1);
861 if (r->code) {
862 const struct icmpcodeent *ic;
863
864 ic = geticmpcodebynumber(r->type-1, r->code-1, r->af);
865 if (ic != NULL((void *)0))
866 printf(" code %s", ic->name);
867 else
868 printf(" code %u", r->code-1);
869 }
870 }
871 if (r->tos)
872 printf(" tos 0x%2.2x", r->tos);
873 if (r->prio)
874 printf(" prio %u", r->prio == PF_PRIO_ZERO0xff ? 0 : r->prio);
875 if (r->pktrate.limit)
876 printf(" max-pkt-rate %u/%u", r->pktrate.limit,
877 r->pktrate.seconds);
878
879 if (r->scrub_flags & PFSTATE_SETMASK(0x0040|0x0200) || r->qname[0] ||
880 r->rule_flag & PFRULE_SETDELAY0x0080) {
881 char *comma = "";
882 printf(" set (");
883 if (r->scrub_flags & PFSTATE_SETPRIO0x0200) {
884 if (r->set_prio[0] == r->set_prio[1])
885 printf("%sprio %u", comma, r->set_prio[0]);
886 else
887 printf("%sprio(%u, %u)", comma, r->set_prio[0],
888 r->set_prio[1]);
889 comma = ", ";
890 }
891 if (r->qname[0]) {
892 if (r->pqname[0])
893 printf("%squeue(%s, %s)", comma, r->qname,
894 r->pqname);
895 else
896 printf("%squeue %s", comma, r->qname);
897 comma = ", ";
898 }
899 if (r->scrub_flags & PFSTATE_SETTOS0x0040) {
900 printf("%stos 0x%2.2x", comma, r->set_tos);
901 comma = ", ";
902 }
903 if (r->rule_flag & PFRULE_SETDELAY0x0080) {
904 printf("%sdelay %u", comma, r->delay);
905 comma = ", ";
906 }
907 printf(")");
908 }
909
910 ropts = 0;
911 if (r->max_states || r->max_src_nodes || r->max_src_states)
912 ropts = 1;
913 if (r->rule_flag & PFRULE_NOSYNC0x0010)
914 ropts = 1;
915 if (r->rule_flag & PFRULE_SRCTRACK0x0020)
916 ropts = 1;
917 if (r->rule_flag & PFRULE_IFBOUND0x00010000)
918 ropts = 1;
919 if (r->rule_flag & PFRULE_STATESLOPPY0x00020000)
920 ropts = 1;
921 if (r->rule_flag & PFRULE_PFLOW0x00040000)
922 ropts = 1;
923 for (i = 0; !ropts && i < PFTM_MAX; ++i)
924 if (r->timeout[i])
925 ropts = 1;
926
927 if (!r->keep_state && r->action == PF_PASS && !anchor_call[0])
928 printf(" no state");
929 else if (r->keep_state == PF_STATE_NORMAL0x1 && ropts)
930 printf(" keep state");
931 else if (r->keep_state == PF_STATE_MODULATE0x2)
932 printf(" modulate state");
933 else if (r->keep_state == PF_STATE_SYNPROXY0x3)
934 printf(" synproxy state");
935 if (r->prob) {
936 char buf[20];
937
938 snprintf(buf, sizeof(buf), "%f", r->prob*100.0/(UINT_MAX0xffffffffU+1.0));
939 for (i = strlen(buf)-1; i > 0; i--) {
940 if (buf[i] == '0')
941 buf[i] = '\0';
942 else {
943 if (buf[i] == '.')
944 buf[i] = '\0';
945 break;
946 }
947 }
948 printf(" probability %s%%", buf);
949 }
950 if (ropts) {
951 printf(" (");
952 if (r->max_states) {
953 printf("max %u", r->max_states);
954 ropts = 0;
955 }
956 if (r->rule_flag & PFRULE_NOSYNC0x0010) {
957 if (!ropts)
958 printf(", ");
959 printf("no-sync");
960 ropts = 0;
961 }
962 if (r->rule_flag & PFRULE_SRCTRACK0x0020) {
963 if (!ropts)
964 printf(", ");
965 printf("source-track");
966 if (r->rule_flag & PFRULE_RULESRCTRACK0x0040)
967 printf(" rule");
968 else
969 printf(" global");
970 ropts = 0;
971 }
972 if (r->max_src_states) {
973 if (!ropts)
974 printf(", ");
975 printf("max-src-states %u", r->max_src_states);
976 ropts = 0;
977 }
978 if (r->max_src_conn) {
979 if (!ropts)
980 printf(", ");
981 printf("max-src-conn %u", r->max_src_conn);
982 ropts = 0;
983 }
984 if (r->max_src_conn_rate.limit) {
985 if (!ropts)
986 printf(", ");
987 printf("max-src-conn-rate %u/%u",
988 r->max_src_conn_rate.limit,
989 r->max_src_conn_rate.seconds);
990 ropts = 0;
991 }
992 if (r->max_src_nodes) {
993 if (!ropts)
994 printf(", ");
995 printf("max-src-nodes %u", r->max_src_nodes);
996 ropts = 0;
997 }
998 if (r->overload_tblname[0]) {
999 if (!ropts)
1000 printf(", ");
1001 printf("overload <%s>", r->overload_tblname);
1002 if (r->flush)
1003 printf(" flush");
1004 if (r->flush & PF_FLUSH_GLOBAL0x02)
1005 printf(" global");
1006 }
1007 if (r->rule_flag & PFRULE_IFBOUND0x00010000) {
1008 if (!ropts)
1009 printf(", ");
1010 printf("if-bound");
1011 ropts = 0;
1012 }
1013 if (r->rule_flag & PFRULE_STATESLOPPY0x00020000) {
1014 if (!ropts)
1015 printf(", ");
1016 printf("sloppy");
1017 ropts = 0;
1018 }
1019 if (r->rule_flag & PFRULE_PFLOW0x00040000) {
1020 if (!ropts)
1021 printf(", ");
1022 printf("pflow");
1023 ropts = 0;
1024 }
1025 for (i = 0; i < PFTM_MAX; ++i)
1026 if (r->timeout[i]) {
1027 int j;
1028
1029 if (!ropts)
1030 printf(", ");
1031 ropts = 0;
1032 for (j = 0; pf_timeouts[j].name != NULL((void *)0);
1033 ++j)
1034 if (pf_timeouts[j].timeout == i)
1035 break;
1036 printf("%s %u", pf_timeouts[j].name == NULL((void *)0) ?
1037 "inv.timeout" : pf_timeouts[j].name,
1038 r->timeout[i]);
1039 }
1040 printf(")");
1041 }
1042
1043 if (r->rule_flag & PFRULE_FRAGMENT0x0002)
1044 printf(" fragment");
1045
1046 if (r->scrub_flags & PFSTATE_SCRUBMASK(0x0020|0x0080|0x0100) || r->min_ttl || r->max_mss) {
1047 printf(" scrub (");
1048 ropts = 1;
1049 if (r->scrub_flags & PFSTATE_NODF0x0020) {
1050 printf("no-df");
1051 ropts = 0;
1052 }
1053 if (r->scrub_flags & PFSTATE_RANDOMID0x0080) {
1054 if (!ropts)
1055 printf(" ");
1056 printf("random-id");
1057 ropts = 0;
1058 }
1059 if (r->min_ttl) {
1060 if (!ropts)
1061 printf(" ");
1062 printf("min-ttl %d", r->min_ttl);
1063 ropts = 0;
1064 }
1065 if (r->scrub_flags & PFSTATE_SCRUB_TCP0x0100) {
1066 if (!ropts)
1067 printf(" ");
1068 printf("reassemble tcp");
1069 ropts = 0;
1070 }
1071 if (r->max_mss) {
1072 if (!ropts)
1073 printf(" ");
1074 printf("max-mss %d", r->max_mss);
1075 ropts = 0;
Value stored to 'ropts' is never read
1076 }
1077 printf(")");
1078 }
1079
1080 if (r->allow_opts)
1081 printf(" allow-opts");
1082 if (r->label[0])
1083 printf(" label \"%s\"", r->label);
1084 if (r->rule_flag & PFRULE_ONCE0x00100000)
1085 printf(" once");
1086 if (r->tagname[0])
1087 printf(" tag %s", r->tagname);
1088 if (r->match_tagname[0]) {
1089 if (r->match_tag_not)
1090 printf(" !");
1091 printf(" tagged %s", r->match_tagname);
1092 }
1093 if (r->rtableid != -1)
1094 printf(" rtable %u", r->rtableid);
1095 switch (r->divert.type) {
1096 case PF_DIVERT_NONE:
1097 break;
1098 case PF_DIVERT_TO: {
1099 printf(" divert-to ");
1100 print_addr_str(r->af, &r->divert.addr);
1101 printf(" port %u", ntohs(r->divert.port)(__uint16_t)(__builtin_constant_p(r->divert.port) ? (__uint16_t
)(((__uint16_t)(r->divert.port) & 0xffU) << 8 | (
(__uint16_t)(r->divert.port) & 0xff00U) >> 8) : __swap16md
(r->divert.port)));
1102 break;
1103 }
1104 case PF_DIVERT_REPLY:
1105 printf(" divert-reply");
1106 break;
1107 case PF_DIVERT_PACKET:
1108 printf(" divert-packet port %u", ntohs(r->divert.port)(__uint16_t)(__builtin_constant_p(r->divert.port) ? (__uint16_t
)(((__uint16_t)(r->divert.port) & 0xffU) << 8 | (
(__uint16_t)(r->divert.port) & 0xff00U) >> 8) : __swap16md
(r->divert.port)));
1109 break;
1110 default:
1111 printf(" divert ???");
1112 break;
1113 }
1114
1115 if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE &&
1116 r->rule_flag & PFRULE_AFTO0x00200000) {
1117 printf(" af-to %s from ", r->naf == AF_INET2 ? "inet" : "inet6");
1118 print_pool(&r->nat, r->nat.proxy_port[0],
1119 r->nat.proxy_port[1], r->naf ? r->naf : r->af,
1120 PF_POOL_NAT, verbose);
1121 if (r->rdr.addr.type != PF_ADDR_NONE) {
1122 printf(" to ");
1123 print_pool(&r->rdr, r->rdr.proxy_port[0],
1124 r->rdr.proxy_port[1], r->naf ? r->naf : r->af,
1125 PF_POOL_RDR, verbose);
1126 }
1127 } else if (!anchor_call[0] && r->nat.addr.type != PF_ADDR_NONE) {
1128 printf (" nat-to ");
1129 print_pool(&r->nat, r->nat.proxy_port[0],
1130 r->nat.proxy_port[1], r->naf ? r->naf : r->af,
1131 PF_POOL_NAT, verbose);
1132 } else if (!anchor_call[0] && r->rdr.addr.type != PF_ADDR_NONE) {
1133 printf (" rdr-to ");
1134 print_pool(&r->rdr, r->rdr.proxy_port[0],
1135 r->rdr.proxy_port[1], r->af, PF_POOL_RDR, verbose);
1136 }
1137 if (r->rt) {
1138 if (r->rt == PF_ROUTETO)
1139 printf(" route-to");
1140 else if (r->rt == PF_REPLYTO)
1141 printf(" reply-to");
1142 else if (r->rt == PF_DUPTO)
1143 printf(" dup-to");
1144 printf(" ");
1145 print_pool(&r->route, 0, 0, r->af, PF_POOL_ROUTE, verbose);
1146 }
1147
1148 if (r->rule_flag & PFRULE_EXPIRED0x00400000)
1149 printf(" # expired");
1150}
1151
1152void
1153print_tabledef(const char *name, int flags, int addrs,
1154 struct node_tinithead *nodes)
1155{
1156 struct node_tinit *ti, *nti;
1157 struct node_host *h;
1158
1159 printf("table <%s>", name);
1160 if (flags & PFR_TFLAG_CONST0x00000002)
1161 printf(" const");
1162 if (flags & PFR_TFLAG_PERSIST0x00000001)
1163 printf(" persist");
1164 if (flags & PFR_TFLAG_COUNTERS0x00000040)
1165 printf(" counters");
1166 SIMPLEQ_FOREACH(ti, nodes, entries)for((ti) = ((nodes)->sqh_first); (ti) != ((void *)0); (ti)
= ((ti)->entries.sqe_next)) {
1167 if (ti->file) {
1168 printf(" file \"%s\"", ti->file);
1169 continue;
1170 }
1171 printf(" {");
1172 for (;;) {
1173 for (h = ti->host; h != NULL((void *)0); h = h->next) {
1174 printf(h->not ? " !" : " ");
1175 print_addr(&h->addr, h->af, 0);
1176 if (h->ifname)
1177 printf("@%s", h->ifname);
1178 }
1179 nti = SIMPLEQ_NEXT(ti, entries)((ti)->entries.sqe_next);
1180 if (nti != NULL((void *)0) && nti->file == NULL((void *)0))
1181 ti = nti; /* merge lists */
1182 else
1183 break;
1184 }
1185 printf(" }");
1186 }
1187 if (addrs && SIMPLEQ_EMPTY(nodes)(((nodes)->sqh_first) == ((void *)0)))
1188 printf(" { }");
1189 printf("\n");
1190}
1191
1192void
1193print_bwspec(const char *prefix, struct pf_queue_bwspec *bw)
1194{
1195 u_int rate;
1196 int i;
1197 static const char unit[] = " KMG";
1198
1199 if (bw->percent)
1200 printf("%s%u%%", prefix, bw->percent);
1201 else if (bw->absolute) {
1202 rate = bw->absolute;
1203 for (i = 0; rate >= 1000 && i <= 3 && (rate % 1000 == 0); i++)
1204 rate /= 1000;
1205 printf("%s%u%c", prefix, rate, unit[i]);
1206 }
1207}
1208
1209void
1210print_scspec(const char *prefix, struct pf_queue_scspec *sc)
1211{
1212 print_bwspec(prefix, &sc->m2);
1213 if (sc->d) {
1214 printf(" burst ");
1215 print_bwspec("", &sc->m1);
1216 printf(" for %ums", sc->d);
1217 }
1218}
1219
1220void
1221print_queuespec(struct pf_queuespec *q)
1222{
1223 printf("queue %s", q->qname);
1224 if (q->parent[0])
1225 printf(" parent %s", q->parent);
1226 else if (q->ifname[0])
1227 printf(" on %s", q->ifname);
1228 if (q->flags & PFQS_FLOWQUEUE0x0001) {
1229 printf(" flows %u", q->flowqueue.flows);
1230 if (q->flowqueue.quantum > 0)
1231 printf(" quantum %u", q->flowqueue.quantum);
1232 if (q->flowqueue.interval > 0)
1233 printf(" interval %ums",
1234 q->flowqueue.interval / 1000000);
1235 if (q->flowqueue.target > 0)
1236 printf(" target %ums",
1237 q->flowqueue.target / 1000000);
1238 }
1239 if (q->linkshare.m1.absolute || q->linkshare.m2.absolute) {
1240 print_scspec(" bandwidth ", &q->linkshare);
1241 print_scspec(", min ", &q->realtime);
1242 print_scspec(", max ", &q->upperlimit);
1243 }
1244 if (q->flags & PFQS_DEFAULT0x1000)
1245 printf(" default");
1246 if (q->qlimit)
1247 printf(" qlimit %u", q->qlimit);
1248 printf("\n");
1249}
1250
1251int
1252parse_flags(char *s)
1253{
1254 char *p, *q;
1255 u_int8_t f = 0;
1256
1257 for (p = s; *p; p++) {
1258 if ((q = strchr(tcpflags, *p)) == NULL((void *)0))
1259 return -1;
1260 else
1261 f |= 1 << (q - tcpflags);
1262 }
1263 return (f ? f : PF_TH_ALL0xFF);
1264}
1265
1266void
1267set_ipmask(struct node_host *h, int bb)
1268{
1269 struct pf_addr *m, *n;
1270 int i, j = 0;
1271 u_int8_t b;
1272
1273 m = &h->addr.v.a.mask;
1274 memset(m, 0, sizeof(*m));
1275
1276 if (bb == -1)
1277 b = h->af == AF_INET2 ? 32 : 128;
1278 else
1279 b = bb;
1280
1281 while (b >= 32) {
1282 m->addr32pfa.addr32[j++] = 0xffffffff;
1283 b -= 32;
1284 }
1285 for (i = 31; i > 31-b; --i)
1286 m->addr32pfa.addr32[j] |= (1 << i);
1287 if (b)
1288 m->addr32pfa.addr32[j] = htonl(m->addr32[j])(__uint32_t)(__builtin_constant_p(m->pfa.addr32[j]) ? (__uint32_t
)(((__uint32_t)(m->pfa.addr32[j]) & 0xff) << 24 |
((__uint32_t)(m->pfa.addr32[j]) & 0xff00) << 8 |
((__uint32_t)(m->pfa.addr32[j]) & 0xff0000) >> 8
| ((__uint32_t)(m->pfa.addr32[j]) & 0xff000000) >>
24) : __swap32md(m->pfa.addr32[j]));
1289
1290 /* Mask off bits of the address that will never be used. */
1291 n = &h->addr.v.a.addr;
1292 if (h->addr.type == PF_ADDR_ADDRMASK)
1293 for (i = 0; i < 4; i++)
1294 n->addr32pfa.addr32[i] = n->addr32pfa.addr32[i] & m->addr32pfa.addr32[i];
1295}
1296
1297int
1298check_netmask(struct node_host *h, sa_family_t af)
1299{
1300 struct node_host *n = NULL((void *)0);
1301 struct pf_addr *m;
1302
1303 for (n = h; n != NULL((void *)0); n = n->next) {
1304 if (h->addr.type == PF_ADDR_TABLE)
1305 continue;
1306 m = &h->addr.v.a.mask;
1307 /* netmasks > 32 bit are invalid on v4 */
1308 if (af == AF_INET2 &&
1309 (m->addr32pfa.addr32[1] || m->addr32pfa.addr32[2] || m->addr32pfa.addr32[3])) {
1310 fprintf(stderr(&__sF[2]), "netmask %u invalid for IPv4 address\n",
1311 unmask(m));
1312 return (1);
1313 }
1314 }
1315 return (0);
1316}
1317
1318struct node_host *
1319gen_dynnode(struct node_host *h, sa_family_t af)
1320{
1321 struct node_host *n;
1322
1323 if (h->addr.type != PF_ADDR_DYNIFTL)
1324 return (NULL((void *)0));
1325
1326 if ((n = calloc(1, sizeof(*n))) == NULL((void *)0))
1327 return (NULL((void *)0));
1328 bcopy(h, n, sizeof(*n));
1329 n->ifname = NULL((void *)0);
1330 n->next = NULL((void *)0);
1331 n->tail = NULL((void *)0);
1332
1333 /* fix up netmask */
1334 if (af == AF_INET2 && unmask(&n->addr.v.a.mask) > 32)
1335 set_ipmask(n, 32);
1336
1337 return (n);
1338}
1339
1340/* interface lookup routines */
1341
1342struct node_host *iftab;
1343
1344void
1345ifa_load(void)
1346{
1347 struct ifaddrs *ifap, *ifa;
1348 struct node_host *n = NULL((void *)0), *h = NULL((void *)0);
1349
1350 if (getifaddrs(&ifap) == -1)
1351 err(1, "getifaddrs");
1352
1353 for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
1354 if (ifa->ifa_addr == NULL((void *)0) ||
1355 !(ifa->ifa_addr->sa_family == AF_INET2 ||
1356 ifa->ifa_addr->sa_family == AF_INET624 ||
1357 ifa->ifa_addr->sa_family == AF_LINK18))
1358 continue;
1359 n = calloc(1, sizeof(struct node_host));
1360 if (n == NULL((void *)0))
1361 err(1, "%s: calloc", __func__);
1362 n->af = ifa->ifa_addr->sa_family;
1363 n->ifa_flags = ifa->ifa_flags;
1364#ifdef __KAME__
1365 if (n->af == AF_INET624 &&
1366 IN6_IS_ADDR_LINKLOCAL(&((struct sockaddr_in6 *)(((&((struct sockaddr_in6 *) ifa->ifa_addr)->sin6_addr
)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&((struct
sockaddr_in6 *) ifa->ifa_addr)->sin6_addr)->__u6_addr
.__u6_addr8[1] & 0xc0) == 0x80))
1367 ifa->ifa_addr)->sin6_addr)(((&((struct sockaddr_in6 *) ifa->ifa_addr)->sin6_addr
)->__u6_addr.__u6_addr8[0] == 0xfe) && (((&((struct
sockaddr_in6 *) ifa->ifa_addr)->sin6_addr)->__u6_addr
.__u6_addr8[1] & 0xc0) == 0x80)) &&
1368 ((struct sockaddr_in6 *)ifa->ifa_addr)->sin6_scope_id ==
1369 0) {
1370 struct sockaddr_in6 *sin6;
1371
1372 sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
1373 sin6->sin6_scope_id = sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[2] << 8 |
1374 sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[3];
1375 sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[2] = 0;
1376 sin6->sin6_addr.s6_addr__u6_addr.__u6_addr8[3] = 0;
1377 }
1378#endif
1379 n->ifindex = 0;
1380 if (n->af == AF_LINK18)
1381 n->ifindex = ((struct sockaddr_dl *)
1382 ifa->ifa_addr)->sdl_index;
1383 else {
1384 copy_satopfaddr(&n->addr.v.a.addr, ifa->ifa_addr);
1385 ifa->ifa_netmask->sa_family = ifa->ifa_addr->sa_family;
1386 copy_satopfaddr(&n->addr.v.a.mask, ifa->ifa_netmask);
1387 if (ifa->ifa_broadaddrifa_dstaddr != NULL((void *)0)) {
1388 ifa->ifa_broadaddrifa_dstaddr->sa_family = ifa->ifa_addr->sa_family;
1389 copy_satopfaddr(&n->bcast, ifa->ifa_broadaddrifa_dstaddr);
1390 }
1391 if (ifa->ifa_dstaddr != NULL((void *)0)) {
1392 ifa->ifa_dstaddr->sa_family = ifa->ifa_addr->sa_family;
1393 copy_satopfaddr(&n->peer, ifa->ifa_dstaddr);
1394 }
1395 if (n->af == AF_INET624)
1396 n->ifindex = ((struct sockaddr_in6 *)
1397 ifa->ifa_addr)->sin6_scope_id;
1398 }
1399 if ((n->ifname = strdup(ifa->ifa_name)) == NULL((void *)0))
1400 err(1, "%s: strdup", __func__);
1401 n->next = NULL((void *)0);
1402 n->tail = n;
1403 if (h == NULL((void *)0))
1404 h = n;
1405 else {
1406 h->tail->next = n;
1407 h->tail = n;
1408 }
1409 }
1410
1411 iftab = h;
1412 freeifaddrs(ifap);
1413}
1414
1415unsigned int
1416ifa_nametoindex(const char *ifa_name)
1417{
1418 struct node_host *p;
1419
1420 for (p = iftab; p; p = p->next) {
1421 if (p->af == AF_LINK18 && strcmp(p->ifname, ifa_name) == 0)
1422 return (p->ifindex);
1423 }
1424 errno(*__errno()) = ENXIO6;
1425 return (0);
1426}
1427
1428char *
1429ifa_indextoname(unsigned int ifindex, char *ifa_name)
1430{
1431 struct node_host *p;
1432
1433 for (p = iftab; p; p = p->next) {
1434 if (p->af == AF_LINK18 && ifindex == p->ifindex) {
1435 strlcpy(ifa_name, p->ifname, IFNAMSIZ16);
1436 return (ifa_name);
1437 }
1438 }
1439 errno(*__errno()) = ENXIO6;
1440 return (NULL((void *)0));
1441}
1442
1443struct node_host *
1444ifa_exists(const char *ifa_name)
1445{
1446 struct node_host *n;
1447 struct ifgroupreq ifgr;
1448 int s;
1449
1450 if (iftab == NULL((void *)0))
1451 ifa_load();
1452
1453 /* check whether this is a group */
1454 if ((s = socket(AF_INET2, SOCK_DGRAM2, 0)) == -1)
1455 err(1, "socket");
1456 bzero(&ifgr, sizeof(ifgr));
1457 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
1458 if (ioctl(s, SIOCGIFGMEMB(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifgroupreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((138))), (caddr_t)&ifgr) == 0) {
1459 /* fake a node_host */
1460 if ((n = calloc(1, sizeof(*n))) == NULL((void *)0))
1461 err(1, "calloc");
1462 if ((n->ifname = strdup(ifa_name)) == NULL((void *)0))
1463 err(1, "strdup");
1464 close(s);
1465 return (n);
1466 }
1467 close(s);
1468
1469 for (n = iftab; n; n = n->next) {
1470 if (n->af == AF_LINK18 && !strncmp(n->ifname, ifa_name, IFNAMSIZ16))
1471 return (n);
1472 }
1473
1474 return (NULL((void *)0));
1475}
1476
1477struct node_host *
1478ifa_grouplookup(const char *ifa_name, int flags)
1479{
1480 struct ifg_req *ifg;
1481 struct ifgroupreq ifgr;
1482 int s, len;
1483 struct node_host *n, *h = NULL((void *)0);
1484
1485 if ((s = socket(AF_INET2, SOCK_DGRAM2, 0)) == -1)
1486 err(1, "socket");
1487 bzero(&ifgr, sizeof(ifgr));
1488 strlcpy(ifgr.ifgr_name, ifa_name, sizeof(ifgr.ifgr_name));
1489 if (ioctl(s, SIOCGIFGMEMB(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifgroupreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((138))), (caddr_t)&ifgr) == -1) {
1490 close(s);
1491 return (NULL((void *)0));
1492 }
1493
1494 len = ifgr.ifgr_len;
1495 if ((ifgr.ifgr_groupsifgr_ifgru.ifgru_groups = calloc(1, len)) == NULL((void *)0))
1496 err(1, "calloc");
1497 if (ioctl(s, SIOCGIFGMEMB(((unsigned long)0x80000000|(unsigned long)0x40000000) | ((sizeof
(struct ifgroupreq) & 0x1fff) << 16) | ((('i')) <<
8) | ((138))), (caddr_t)&ifgr) == -1)
1498 err(1, "SIOCGIFGMEMB");
1499
1500 for (ifg = ifgr.ifgr_groupsifgr_ifgru.ifgru_groups; ifg && len >= sizeof(struct ifg_req);
1501 ifg++) {
1502 len -= sizeof(struct ifg_req);
1503 if ((n = ifa_lookup(ifg->ifgrq_memberifgrq_ifgrqu.ifgrqu_member, flags)) == NULL((void *)0))
1504 continue;
1505 if (h == NULL((void *)0))
1506 h = n;
1507 else {
1508 h->tail->next = n;
1509 h->tail = n->tail;
1510 }
1511 }
1512 free(ifgr.ifgr_groupsifgr_ifgru.ifgru_groups);
1513 close(s);
1514
1515 return (h);
1516}
1517
1518struct node_host *
1519ifa_lookup(const char *ifa_name, int flags)
1520{
1521 struct node_host *p = NULL((void *)0), *h = NULL((void *)0), *n = NULL((void *)0);
1522 int got4 = 0, got6 = 0;
1523 const char *last_if = NULL((void *)0);
1524
1525 if ((h = ifa_grouplookup(ifa_name, flags)) != NULL((void *)0))
1526 return (h);
1527
1528 if (!strncmp(ifa_name, "self", IFNAMSIZ16))
1529 ifa_name = NULL((void *)0);
1530
1531 if (iftab == NULL((void *)0))
1532 ifa_load();
1533
1534 for (p = iftab; p; p = p->next) {
1535 if (ifa_skip_if(ifa_name, p))
1536 continue;
1537 if ((flags & PFI_AFLAG_BROADCAST0x02) && p->af != AF_INET2)
1538 continue;
1539 if ((flags & PFI_AFLAG_BROADCAST0x02) &&
1540 !(p->ifa_flags & IFF_BROADCAST0x2))
1541 continue;
1542 if ((flags & PFI_AFLAG_BROADCAST0x02) && p->bcast.v4pfa.v4.s_addr == 0)
1543 continue;
1544 if ((flags & PFI_AFLAG_PEER0x04) &&
1545 !(p->ifa_flags & IFF_POINTOPOINT0x10))
1546 continue;
1547 if ((flags & PFI_AFLAG_NETWORK0x01) && p->ifindex > 0)
1548 continue;
1549 if (last_if == NULL((void *)0) || strcmp(last_if, p->ifname))
1550 got4 = got6 = 0;
1551 last_if = p->ifname;
1552 if ((flags & PFI_AFLAG_NOALIAS0x08) && p->af == AF_INET2 && got4)
1553 continue;
1554 if ((flags & PFI_AFLAG_NOALIAS0x08) && p->af == AF_INET624 && got6)
1555 continue;
1556 if (p->af == AF_INET2)
1557 got4 = 1;
1558 else
1559 got6 = 1;
1560 n = calloc(1, sizeof(struct node_host));
1561 if (n == NULL((void *)0))
1562 err(1, "%s: calloc", __func__);
1563 n->af = p->af;
1564 if (flags & PFI_AFLAG_BROADCAST0x02)
1565 memcpy(&n->addr.v.a.addr, &p->bcast,
1566 sizeof(struct pf_addr));
1567 else if (flags & PFI_AFLAG_PEER0x04)
1568 memcpy(&n->addr.v.a.addr, &p->peer,
1569 sizeof(struct pf_addr));
1570 else
1571 memcpy(&n->addr.v.a.addr, &p->addr.v.a.addr,
1572 sizeof(struct pf_addr));
1573 if (flags & PFI_AFLAG_NETWORK0x01)
1574 set_ipmask(n, unmask(&p->addr.v.a.mask));
1575 else
1576 set_ipmask(n, -1);
1577 n->ifindex = p->ifindex;
1578
1579 n->next = NULL((void *)0);
1580 n->tail = n;
1581 if (h == NULL((void *)0))
1582 h = n;
1583 else {
1584 h->tail->next = n;
1585 h->tail = n;
1586 }
1587 }
1588 return (h);
1589}
1590
1591int
1592ifa_skip_if(const char *filter, struct node_host *p)
1593{
1594 int n;
1595
1596 if (p->af != AF_INET2 && p->af != AF_INET624)
1597 return (1);
1598 if (filter == NULL((void *)0) || !*filter)
1599 return (0);
1600 if (!strcmp(p->ifname, filter))
1601 return (0); /* exact match */
1602 n = strlen(filter);
1603 if (n < 1 || n >= IFNAMSIZ16)
1604 return (1); /* sanity check */
1605 if (filter[n-1] >= '0' && filter[n-1] <= '9')
1606 return (1); /* only do exact match in that case */
1607 if (strncmp(p->ifname, filter, n))
1608 return (1); /* prefix doesn't match */
1609 return (p->ifname[n] < '0' || p->ifname[n] > '9');
1610}
1611
1612struct node_host *
1613host(const char *s, int opts)
1614{
1615 struct node_host *h = NULL((void *)0), *n;
1616 int mask = -1;
1617 char *p, *ps;
1618 const char *errstr;
1619
1620 if ((ps = strdup(s)) == NULL((void *)0))
1621 err(1, "%s: strdup", __func__);
1622
1623 if ((p = strchr(ps, '/')) != NULL((void *)0)) {
1624 mask = strtonum(p+1, 0, 128, &errstr);
1625 if (errstr) {
1626 fprintf(stderr(&__sF[2]), "netmask is %s: %s\n", errstr, p);
1627 goto error;
1628 }
1629 p[0] = '\0';
1630 }
1631
1632 if ((h = host_if(ps, mask)) == NULL((void *)0) &&
1633 (h = host_ip(ps, mask)) == NULL((void *)0) &&
1634 (h = host_dns(ps, mask, (opts & PF_OPT_NODNS0x01000))) == NULL((void *)0)) {
1635 fprintf(stderr(&__sF[2]), "no IP address found for %s\n", s);
1636 goto error;
1637 }
1638
1639 for (n = h; n != NULL((void *)0); n = n->next) {
1640 n->addr.type = PF_ADDR_ADDRMASK;
1641 n->weight = 0;
1642 }
1643
1644error:
1645 free(ps);
1646 return (h);
1647}
1648
1649struct node_host *
1650host_if(const char *s, int mask)
1651{
1652 struct node_host *n, *h = NULL((void *)0);
1653 char *p, *ps;
1654 int flags = 0;
1655
1656 if ((ps = strdup(s)) == NULL((void *)0))
1657 err(1, "host_if: strdup");
1658 while ((p = strrchr(ps, ':')) != NULL((void *)0)) {
1659 if (!strcmp(p+1, "network"))
1660 flags |= PFI_AFLAG_NETWORK0x01;
1661 else if (!strcmp(p+1, "broadcast"))
1662 flags |= PFI_AFLAG_BROADCAST0x02;
1663 else if (!strcmp(p+1, "peer"))
1664 flags |= PFI_AFLAG_PEER0x04;
1665 else if (!strcmp(p+1, "0"))
1666 flags |= PFI_AFLAG_NOALIAS0x08;
1667 else
1668 goto error;
1669 *p = '\0';
1670 }
1671 if (flags & (flags - 1) & PFI_AFLAG_MODEMASK0x07) { /* Yep! */
1672 fprintf(stderr(&__sF[2]), "illegal combination of interface modifiers\n");
1673 goto error;
1674 }
1675 if ((flags & (PFI_AFLAG_NETWORK0x01|PFI_AFLAG_BROADCAST0x02)) && mask > -1) {
1676 fprintf(stderr(&__sF[2]), "network or broadcast lookup, but "
1677 "extra netmask given\n");
1678 goto error;
1679 }
1680 if (ifa_exists(ps) || !strncmp(ps, "self", IFNAMSIZ16)) {
1681 /* interface with this name exists */
1682 h = ifa_lookup(ps, flags);
1683 if (mask > -1)
1684 for (n = h; n != NULL((void *)0); n = n->next)
1685 set_ipmask(n, mask);
1686 }
1687
1688error:
1689 free(ps);
1690 return (h);
1691}
1692
1693struct node_host *
1694host_ip(const char *s, int mask)
1695{
1696 struct addrinfo hints, *res;
1697 struct node_host *h = NULL((void *)0);
1698
1699 memset(&hints, 0, sizeof(hints));
1700 hints.ai_family = AF_UNSPEC0;
1701 hints.ai_socktype = SOCK_DGRAM2; /*dummy*/
1702 hints.ai_flags = AI_NUMERICHOST4;
1703 if (getaddrinfo(s, NULL((void *)0), &hints, &res) == 0) {
1704 h = calloc(1, sizeof(*h));
1705 if (h == NULL((void *)0))
1706 err(1, "%s: calloc", __func__);
1707 h->af = res->ai_family;
1708 copy_satopfaddr(&h->addr.v.a.addr, res->ai_addr);
1709 if (h->af == AF_INET624)
1710 h->ifindex =
1711 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
1712 freeaddrinfo(res);
1713 } else { /* ie. for 10/8 parsing */
1714 if (mask == -1)
1715 return (NULL((void *)0));
1716 h = calloc(1, sizeof(*h));
1717 if (h == NULL((void *)0))
1718 err(1, "%s: calloc", __func__);
1719 h->af = AF_INET2;
1720 if (inet_net_pton(AF_INET2, s, &h->addr.v.a.addr.v4pfa.v4,
1721 sizeof(h->addr.v.a.addr.v4pfa.v4)) == -1) {
1722 free(h);
1723 return (NULL((void *)0));
1724 }
1725 }
1726 set_ipmask(h, mask);
1727 h->ifname = NULL((void *)0);
1728 h->next = NULL((void *)0);
1729 h->tail = h;
1730
1731 return (h);
1732}
1733
1734struct node_host *
1735host_dns(const char *s, int mask, int numeric)
1736{
1737 struct addrinfo hints, *res0, *res;
1738 struct node_host *n, *h = NULL((void *)0);
1739 int noalias = 0, got4 = 0, got6 = 0;
1740 char *p, *ps;
1741
1742 if ((ps = strdup(s)) == NULL((void *)0))
1743 err(1, "host_dns: strdup");
1744 if ((p = strrchr(ps, ':')) != NULL((void *)0) && !strcmp(p, ":0")) {
1745 noalias = 1;
1746 *p = '\0';
1747 }
1748 memset(&hints, 0, sizeof(hints));
1749 hints.ai_family = PF_UNSPEC0;
1750 hints.ai_socktype = SOCK_STREAM1; /* DUMMY */
1751 if (numeric)
1752 hints.ai_flags = AI_NUMERICHOST4;
1753 if (getaddrinfo(ps, NULL((void *)0), &hints, &res0) != 0)
1754 goto error;
1755
1756 for (res = res0; res; res = res->ai_next) {
1757 if (res->ai_family != AF_INET2 &&
1758 res->ai_family != AF_INET624)
1759 continue;
1760 if (noalias) {
1761 if (res->ai_family == AF_INET2) {
1762 if (got4)
1763 continue;
1764 got4 = 1;
1765 } else {
1766 if (got6)
1767 continue;
1768 got6 = 1;
1769 }
1770 }
1771 n = calloc(1, sizeof(struct node_host));
1772 if (n == NULL((void *)0))
1773 err(1, "host_dns: calloc");
1774 n->ifname = NULL((void *)0);
1775 n->af = res->ai_family;
1776 copy_satopfaddr(&n->addr.v.a.addr, res->ai_addr);
1777 if (res->ai_family == AF_INET624)
1778 n->ifindex =
1779 ((struct sockaddr_in6 *)res->ai_addr)->sin6_scope_id;
1780 set_ipmask(n, mask);
1781 n->next = NULL((void *)0);
1782 n->tail = n;
1783 if (h == NULL((void *)0))
1784 h = n;
1785 else {
1786 h->tail->next = n;
1787 h->tail = n;
1788 }
1789 }
1790 freeaddrinfo(res0);
1791error:
1792 free(ps);
1793
1794 return (h);
1795}
1796
1797/*
1798 * convert a hostname to a list of addresses and put them in the given buffer.
1799 * test:
1800 * if set to 1, only simple addresses are accepted (no netblock, no "!").
1801 */
1802int
1803append_addr(struct pfr_buffer *b, char *s, int test, int opts)
1804{
1805 static int previous = 0;
1806 static int expect = 0;
1807 struct pfr_addr *a;
1808 struct node_host *h, *n;
1809 char *r;
1810 const char *errstr;
1811 int rv, not = 0, i = 0;
1812 u_int16_t weight;
1813
1814 /* skip weight if given */
1815 if (strcmp(s, "weight") == 0) {
1816 expect = 1;
1817 return (1); /* expecting further call */
1818 }
1819
1820 /* check if previous host is set */
1821 if (expect) {
1822 /* parse and append load balancing weight */
1823 weight = strtonum(s, 1, USHRT_MAX0xffff, &errstr);
1824 if (errstr) {
1825 fprintf(stderr(&__sF[2]), "failed to convert weight %s\n", s);
1826 return (-1);
1827 }
1828 if (previous != -1) {
1829 PFRB_FOREACH(a, b)for ((a) = pfr_buf_next((b), ((void *)0)); (a) != ((void *)0)
; (a) = pfr_buf_next((b), (a))) {
1830 if (++i >= previous) {
1831 a->pfra_weight = weight;
1832 a->pfra_type = PFRKE_COST;
1833 }
1834 }
1835 }
1836 expect = 0;
1837 return (0);
1838 }
1839
1840 for (r = s; *r == '!'; r++)
1841 not = !not;
1842 if ((n = host(r, opts)) == NULL((void *)0)) {
1843 errno(*__errno()) = 0;
1844 return (-1);
1845 }
1846 rv = append_addr_host(b, n, test, not);
1847 previous = b->pfrb_size;
1848 do {
1849 h = n;
1850 n = n->next;
1851 free(h);
1852 } while (n != NULL((void *)0));
1853 return (rv);
1854}
1855
1856/*
1857 * same as previous function, but with a pre-parsed input and the ability
1858 * to "negate" the result. Does not free the node_host list.
1859 * not:
1860 * setting it to 1 is equivalent to adding "!" in front of parameter s.
1861 */
1862int
1863append_addr_host(struct pfr_buffer *b, struct node_host *n, int test, int not)
1864{
1865 int bits;
1866 struct pfr_addr addr;
1867
1868 do {
1869 bzero(&addr, sizeof(addr));
1870 addr.pfra_not = n->not ^ not;
1871 addr.pfra_af = n->af;
1872 addr.pfra_net = unmask(&n->addr.v.a.mask);
1873 if (n->ifname) {
1874 if (strlcpy(addr.pfra_ifname, n->ifname,
1875 sizeof(addr.pfra_ifname)) >= sizeof(addr.pfra_ifname))
1876 errx(1, "append_addr_host: strlcpy");
1877 addr.pfra_type = PFRKE_ROUTE;
1878 }
1879 if (n->weight > 0) {
1880 addr.pfra_weight = n->weight;
1881 addr.pfra_type = PFRKE_COST;
1882 }
1883 switch (n->af) {
1884 case AF_INET2:
1885 addr.pfra_ip4addrpfra_u._pfra_ip4addr.s_addr = n->addr.v.a.addr.addr32pfa.addr32[0];
1886 bits = 32;
1887 break;
1888 case AF_INET624:
1889 memcpy(&addr.pfra_ip6addrpfra_u._pfra_ip6addr, &n->addr.v.a.addr.v6pfa.v6,
1890 sizeof(struct in6_addr));
1891 bits = 128;
1892 break;
1893 default:
1894 errno(*__errno()) = EINVAL22;
1895 return (-1);
1896 }
1897 if ((test && (not || addr.pfra_net != bits)) ||
1898 addr.pfra_net > bits) {
1899 errno(*__errno()) = EINVAL22;
1900 return (-1);
1901 }
1902 if (pfr_buf_add(b, &addr))
1903 return (-1);
1904 } while ((n = n->next) != NULL((void *)0));
1905
1906 return (0);
1907}
1908
1909int
1910pfctl_add_trans(struct pfr_buffer *buf, int type, const char *anchor)
1911{
1912 struct pfioc_trans_e trans;
1913
1914 bzero(&trans, sizeof(trans));
1915 trans.type = type;
1916 if (strlcpy(trans.anchor, anchor,
1917 sizeof(trans.anchor)) >= sizeof(trans.anchor))
1918 errx(1, "pfctl_add_trans: strlcpy");
1919
1920 return pfr_buf_add(buf, &trans);
1921}
1922
1923u_int32_t
1924pfctl_get_ticket(struct pfr_buffer *buf, int type, const char *anchor)
1925{
1926 struct pfioc_trans_e *p;
1927
1928 PFRB_FOREACH(p, buf)for ((p) = pfr_buf_next((buf), ((void *)0)); (p) != ((void *)
0); (p) = pfr_buf_next((buf), (p)))
1929 if (type == p->type && !strcmp(anchor, p->anchor))
1930 return (p->ticket);
1931 errx(1, "pfctl_get_ticket: assertion failed");
1932}
1933
1934int
1935pfctl_trans(int dev, struct pfr_buffer *buf, u_long cmd, int from)
1936{
1937 struct pfioc_trans trans;
1938
1939 bzero(&trans, sizeof(trans));
1940 trans.size = buf->pfrb_size - from;
1941 trans.esize = sizeof(struct pfioc_trans_e);
1942 trans.array = ((struct pfioc_trans_e *)buf->pfrb_caddr) + from;
1943 return ioctl(dev, cmd, &trans);
1944}