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Add a new option -P to suppress getservbyport(3) calls when printing rules.

Browse Source 
This allows one to force consistent printing of numeric port numbers like
we do with -n for other tools like netstat (just that -n was already taken)
rather than the service names.

-P is currently unused in OpenBSD so the change is eligible for upstreaming.

PR:		misc/151015
Submitted by:	Matt Koivisto (mkoivisto sandvine.com)
Sponsored by:	Sandvine Incorporated
MFC after:	1 week
This commit is contained in:
Bjoern A. Zeeb 2011-06-13 20:11:28 +00:00
parent eb52d12531
commit 38a253506a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=223057
5 changed files with 34 additions and 19 deletions
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8
contrib/pf/pfctl/pfctl.8
View File

@ -26,7 +26,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd November 20, 2002
.Dd June 13, 2011
.Dt PFCTL 8
.Os
.Sh NAME
@ -35,7 +35,7 @@
.Sh SYNOPSIS
.Nm pfctl
.Bk -words
.Op Fl AdeghmNnOqRrvz
.Op Fl AdeghmNnOPqRrvz
.Op Fl a Ar anchor
.Oo Fl D Ar macro Ns =
.Ar value Oc
@ -350,6 +350,9 @@ without any options will enable
optimizations, and a second
.Fl o
will enable profiling.
.It Fl P
Do not perform service name lookup for port specific rules,
instead display the ports numerically.
.It Fl p Ar device
Use the device file
.Ar device
@ -670,6 +673,7 @@ Passive operating system fingerprint database.
.Xr pf.conf 5 ,
.Xr pf.os 5 ,
.Xr rc.conf 5 ,
.Xr services 5 ,
.Xr sysctl.conf 5 ,
.Xr authpf 8 ,
.Xr ftp-proxy 8 ,

17
contrib/pf/pfctl/pfctl.c
View File

@ -235,7 +235,7 @@ usage(void)
{
extern char *__progname;
fprintf(stderr, "usage: %s [-AdeghmNnOqRrvz] ", __progname);
fprintf(stderr, "usage: %s [-AdeghmNnOPqRrvz] ", __progname);
fprintf(stderr, "[-a anchor] [-D macro=value] [-F modifier]\n");
fprintf(stderr, "\t[-f file] [-i interface] [-K host | network] ");
fprintf(stderr, "[-k host | network ]\n");
@ -770,6 +770,7 @@ pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
struct pfioc_rule pr;
u_int32_t nr, mnr, header = 0;
int rule_numbers = opts & (PF_OPT_VERBOSE2 | PF_OPT_DEBUG);
int numeric = opts & PF_OPT_NUMERIC;
int len = strlen(path);
int brace;
char *p;
@ -834,7 +835,7 @@ pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
case PFCTL_SHOW_RULES:
if (pr.rule.label[0] && (opts & PF_OPT_SHOWALL))
labels = 1;
print_rule(&pr.rule, pr.anchor_call, rule_numbers);
print_rule(&pr.rule, pr.anchor_call, rule_numbers, numeric);
printf("\n");
pfctl_print_rule_counters(&pr.rule, opts);
break;
@ -894,7 +895,7 @@ pfctl_show_rules(int dev, char *path, int opts, enum pfctl_show format,
} else
p = &pr.anchor_call[0];
print_rule(&pr.rule, p, rule_numbers);
print_rule(&pr.rule, p, rule_numbers, numeric);
if (brace)
printf(" {\n");
else
@ -951,7 +952,7 @@ pfctl_show_nat(int dev, int opts, char *anchorname)
dotitle = 0;
}
print_rule(&pr.rule, pr.anchor_call,
opts & PF_OPT_VERBOSE2);
opts & PF_OPT_VERBOSE2, opts & PF_OPT_NUMERIC);
printf("\n");
pfctl_print_rule_counters(&pr.rule, opts);
pfctl_clear_pool(&pr.rule.rpool);
@ -1318,7 +1319,8 @@ pfctl_load_rule(struct pfctl *pf, char *path, struct pf_rule *r, int depth)
if (pf->opts & PF_OPT_VERBOSE) {
INDENT(depth, !(pf->opts & PF_OPT_VERBOSE2));
print_rule(r, r->anchor ? r->anchor->name : "",
pf->opts & PF_OPT_VERBOSE2);
pf->opts & PF_OPT_VERBOSE2,
pf->opts & PF_OPT_NUMERIC);
}
path[len] = '\0';
pfctl_clear_pool(&r->rpool);
@ -1978,7 +1980,7 @@ main(int argc, char *argv[])
usage();
while ((ch = getopt(argc, argv,
"a:AdD:eqf:F:ghi:k:K:mnNOo::p:rRs:t:T:vx:z")) != -1) {
"a:AdD:eqf:F:ghi:k:K:mnNOo::Pp:rRs:t:T:vx:z")) != -1) {
switch (ch) {
case 'a':
anchoropt = optarg;
@ -2080,6 +2082,9 @@ main(int argc, char *argv[])
case 'p':
pf_device = optarg;
break;
case 'P':
opts |= PF_OPT_NUMERIC;
break;
case 's':
showopt = pfctl_lookup_option(optarg, showopt_list);
if (showopt == NULL) {

2
contrib/pf/pfctl/pfctl_optimize.c
View File

@ -407,7 +407,7 @@ optimize_superblock(struct pfctl *pf, struct superblock *block)
TAILQ_FOREACH(por, &block->sb_rules, por_entry) {
printf(" ");
print_rule(&por->por_rule, por->por_rule.anchor ?
por->por_rule.anchor->name : "", 1);
por->por_rule.anchor->name : "", 1, 0);
}
#endif /* OPT_DEBUG */

23
contrib/pf/pfctl/pfctl_parser.c
View File

@ -64,11 +64,11 @@ __FBSDID("$FreeBSD$");
#include "pfctl.h"
void print_op (u_int8_t, const char *, const char *);
void print_port (u_int8_t, u_int16_t, u_int16_t, const char *);
void print_port (u_int8_t, u_int16_t, u_int16_t, const char *, int);
void print_ugid (u_int8_t, unsigned, unsigned, const char *, unsigned);
void print_flags (u_int8_t);
void print_fromto(struct pf_rule_addr *, pf_osfp_t,
struct pf_rule_addr *, u_int8_t, u_int8_t, int);
struct pf_rule_addr *, u_int8_t, u_int8_t, int, int);
int ifa_skip_if(const char *filter, struct node_host *p);
struct node_host *ifa_grouplookup(const char *, int);
@ -320,12 +320,15 @@ print_op(u_int8_t op, const char *a1, const char *a2)
}
void
print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto)
print_port(u_int8_t op, u_int16_t p1, u_int16_t p2, const char *proto, int numeric)
{
char a1[6], a2[6];
struct servent *s;
s = getservbyport(p1, proto);
if (!numeric)
s = getservbyport(p1, proto);
else
s = NULL;
p1 = ntohs(p1);
p2 = ntohs(p2);
snprintf(a1, sizeof(a1), "%u", p1);
@ -363,7 +366,7 @@ print_flags(u_int8_t f)
void
print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
sa_family_t af, u_int8_t proto, int verbose)
sa_family_t af, u_int8_t proto, int verbose, int numeric)
{
char buf[PF_OSFP_LEN*3];
if (src->addr.type == PF_ADDR_ADDRMASK &&
@ -384,7 +387,8 @@ print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
if (src->port_op)
print_port(src->port_op, src->port[0],
src->port[1],
proto == IPPROTO_TCP ? "tcp" : "udp");
proto == IPPROTO_TCP ? "tcp" : "udp",
numeric);
if (osfp != PF_OSFP_ANY)
printf(" os \"%s\"", pfctl_lookup_fingerprint(osfp, buf,
sizeof(buf)));
@ -396,7 +400,8 @@ print_fromto(struct pf_rule_addr *src, pf_osfp_t osfp, struct pf_rule_addr *dst,
if (dst->port_op)
print_port(dst->port_op, dst->port[0],
dst->port[1],
proto == IPPROTO_TCP ? "tcp" : "udp");
proto == IPPROTO_TCP ? "tcp" : "udp",
numeric);
}
}
@ -673,7 +678,7 @@ print_src_node(struct pf_src_node *sn, int opts)
}
void
print_rule(struct pf_rule *r, const char *anchor_call, int verbose)
print_rule(struct pf_rule *r, const char *anchor_call, int verbose, int numeric)
{
static const char *actiontypes[] = { "pass", "block", "scrub",
"no scrub", "nat", "no nat", "binat", "no binat", "rdr", "no rdr" };
@ -800,7 +805,7 @@ print_rule(struct pf_rule *r, const char *anchor_call, int verbose)
printf(" proto %u", r->proto);
}
print_fromto(&r->src, r->os_fingerprint, &r->dst, r->af, r->proto,
verbose);
verbose, numeric);
if (r->uid.op)
print_ugid(r->uid.op, r->uid.uid[0], r->uid.uid[1], "user",
UID_MAX);

3
contrib/pf/pfctl/pfctl_parser.h
View File

@ -48,6 +48,7 @@
#define PF_OPT_DEBUG 0x0200
#define PF_OPT_SHOWALL 0x0400
#define PF_OPT_OPTIMIZE 0x0800
#define PF_OPT_NUMERIC 0x1000
#define PF_OPT_MERGE 0x2000
#define PF_OPT_RECURSE 0x4000
@ -235,7 +236,7 @@ int pfctl_load_anchors(int, struct pfctl *, struct pfr_buffer *);
void print_pool(struct pf_pool *, u_int16_t, u_int16_t, sa_family_t, int);
void print_src_node(struct pf_src_node *, int);
void print_rule(struct pf_rule *, const char *, int);
void print_rule(struct pf_rule *, const char *, int, int);
void print_tabledef(const char *, int, int, struct node_tinithead *);
void print_status(struct pf_status *, int);