2 * Copyright (c) 2005 Christian S.J. Peron
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/types.h>
31 #include <sys/protosw.h>
32 #include <sys/socket.h>
33 #include <sys/socketvar.h>
34 #include <sys/sysctl.h>
35 #include <sys/param.h>
39 #include <net/if_var.h>
41 #include <net/bpfdesc.h>
42 #include <arpa/inet.h>
59 bpf_pidname(pid_t pid)
61 struct kinfo_proc newkp;
67 mib[2] = KERN_PROC_PID;
70 error = sysctl(mib, 4, &newkp, &size, NULL, 0);
72 xo_warn("kern.proc.pid failed");
73 return (strdup("??????"));
75 return (strdup(newkp.ki_comm));
79 bpf_flags(struct xbpf_d *bd, char *flagbuf)
82 *flagbuf++ = bd->bd_promisc ? 'p' : '-';
83 *flagbuf++ = bd->bd_immediate ? 'i' : '-';
84 *flagbuf++ = bd->bd_hdrcmplt ? '-' : 'f';
85 *flagbuf++ = (bd->bd_direction == BPF_D_IN) ? '-' :
86 ((bd->bd_direction == BPF_D_OUT) ? 'o' : 's');
87 *flagbuf++ = bd->bd_feedback ? 'b' : '-';
88 *flagbuf++ = bd->bd_async ? 'a' : '-';
89 *flagbuf++ = bd->bd_locked ? 'l' : '-';
93 xo_emit("{e:promiscuous/}");
95 xo_emit("{e:immediate/}");
97 xo_emit("{e:header-complete/}");
98 xo_emit("{e:direction}", (bd->bd_direction == BPF_D_IN) ? "input" :
99 (bd->bd_direction == BPF_D_OUT) ? "output" : "bidirectional");
101 xo_emit("{e:feedback/}");
103 xo_emit("{e:async/}");
105 xo_emit("{e:locked/}");
109 bpf_stats(char *ifname)
111 struct xbpf_d *d, *bd, zerostat;
112 char *pname, flagbuf[12];
116 bzero(&zerostat, sizeof(zerostat));
117 if (sysctlbyname("net.bpf.stats", NULL, NULL,
118 &zerostat, sizeof(zerostat)) < 0)
119 xo_warn("failed to zero bpf counters");
122 if (sysctlbyname("net.bpf.stats", NULL, &size,
124 xo_warn("net.bpf.stats");
131 xo_warn("malloc failed");
134 if (sysctlbyname("net.bpf.stats", bd, &size,
136 xo_warn("net.bpf.stats");
140 xo_emit("{T:/%5s} {T:/%6s} {T:/%7s} {T:/%9s} {T:/%9s} {T:/%9s} "
141 "{T:/%5s} {T:/%5s} {T:/%s}\n",
142 "Pid", "Netif", "Flags", "Recv", "Drop", "Match",
143 "Sblen", "Hblen", "Command");
144 xo_open_container("bpf-statistics");
145 xo_open_list("bpf-entry");
146 for (d = &bd[0]; d < &bd[size / sizeof(*d)]; d++) {
147 if (d->bd_structsize != sizeof(*d)) {
148 xo_warnx("bpf_stats_extended: version mismatch");
151 if (ifname && strcmp(ifname, d->bd_ifname) != 0)
153 xo_open_instance("bpf-entry");
154 pname = bpf_pidname(d->bd_pid);
155 xo_emit("{k:pid/%5d} {k:interface-name/%6s} ",
156 d->bd_pid, d->bd_ifname);
157 bpf_flags(d, flagbuf);
158 xo_emit("{d:flags/%7s} {:received-packets/%9ju} "
159 "{:dropped-packets/%9ju} {:filter-packets/%9ju} "
160 "{:store-buffer-length/%5d} {:hold-buffer-length/%5d} "
162 flagbuf, (uintmax_t)d->bd_rcount, (uintmax_t)d->bd_dcount,
163 (uintmax_t)d->bd_fcount, d->bd_slen, d->bd_hlen, pname);
165 xo_close_instance("bpf-entry");
167 xo_close_list("bpf-entry");
168 xo_close_container("bpf-statistics");