2 * Copyright (c) 1983, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
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.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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32 static char sccsid[] = "@(#)unix.c 8.1 (Berkeley) 6/6/93";
36 #include <sys/cdefs.h>
37 __FBSDID("$FreeBSD$");
40 * Display protocol blocks in the unix domain.
42 #include <sys/param.h>
43 #include <sys/queue.h>
44 #include <sys/protosw.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
48 #include <sys/sysctl.h>
50 #include <sys/unpcb.h>
52 #include <netinet/in.h>
64 static void unixdomainpr(struct xunpcb *, struct xsocket *);
66 static const char *const socktype[] =
67 { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
70 pcblist_sysctl(int type, char **bufp)
74 char mibvar[sizeof "net.local.seqpacket.pcblist"];
76 sprintf(mibvar, "net.local.%s.pcblist", socktype[type]);
79 if (sysctlbyname(mibvar, 0, &len, 0, 0) < 0) {
81 warn("sysctl: %s", mibvar);
84 if ((buf = malloc(len)) == 0) {
85 warnx("malloc %lu bytes", (u_long)len);
88 if (sysctlbyname(mibvar, buf, &len, 0, 0) < 0) {
89 warn("sysctl: %s", mibvar);
98 pcblist_kvm(u_long count_off, u_long gencnt_off, u_long head_off, char **bufp)
100 struct unp_head head;
101 struct unpcb *unp, unp_conn;
106 unp_gen_t unp_gencnt;
111 if (count_off == 0 || gencnt_off == 0)
115 kread(count_off, &unp_count, sizeof(unp_count));
116 len = 2 * sizeof(xug) + (unp_count + unp_count / 8) * sizeof(xu);
117 if ((buf = malloc(len)) == 0) {
118 warnx("malloc %lu bytes", (u_long)len);
123 #define COPYOUT(obj, size) do { \
124 if (len < (size)) { \
125 warnx("buffer size exceeded"); \
128 bcopy((obj), p, (size)); \
133 #define KREAD(off, buf, len) do { \
134 if (kread((uintptr_t)(off), (buf), (len)) != 0) \
138 /* Write out header. */
139 kread(gencnt_off, &unp_gencnt, sizeof(unp_gencnt));
140 xug.xug_len = sizeof xug;
141 xug.xug_count = unp_count;
142 xug.xug_gen = unp_gencnt;
144 COPYOUT(&xug, sizeof xug);
146 /* Walk the PCB list. */
147 xu.xu_len = sizeof xu;
148 KREAD(head_off, &head, sizeof(head));
149 LIST_FOREACH(unp, &head, unp_link) {
151 KREAD(unp, &xu.xu_unp, sizeof (*unp));
154 if (unp->unp_gencnt > unp_gencnt)
156 if (unp->unp_addr != NULL) {
157 KREAD(unp->unp_addr, &sun_len, sizeof(sun_len));
158 KREAD(unp->unp_addr, &xu.xu_addr, sun_len);
160 if (unp->unp_conn != NULL) {
161 KREAD(unp->unp_conn, &unp_conn, sizeof(unp_conn));
162 if (unp_conn.unp_addr != NULL) {
163 KREAD(unp_conn.unp_addr, &sun_len,
165 KREAD(unp_conn.unp_addr, &xu.xu_caddr, sun_len);
168 KREAD(unp->unp_socket, &so, sizeof(so));
169 if (sotoxsocket(&so, &xu.xu_socket) != 0)
171 COPYOUT(&xu, sizeof(xu));
174 /* Reread the counts and write the footer. */
175 kread(count_off, &unp_count, sizeof(unp_count));
176 kread(gencnt_off, &unp_gencnt, sizeof(unp_gencnt));
177 xug.xug_count = unp_count;
178 xug.xug_gen = unp_gencnt;
179 COPYOUT(&xug, sizeof xug);
192 unixpr(u_long count_off, u_long gencnt_off, u_long dhead_off, u_long shead_off,
198 struct xunpgen *xug, *oxug;
202 for (type = SOCK_STREAM; type <= SOCK_SEQPACKET; type++) {
204 ret = pcblist_sysctl(type, &buf);
209 head_off = shead_off;
213 head_off = dhead_off;
217 head_off = sphead_off;
220 ret = pcblist_kvm(count_off, gencnt_off, head_off,
228 oxug = xug = (struct xunpgen *)buf;
229 for (xug = (struct xunpgen *)((char *)xug + xug->xug_len);
230 xug->xug_len > sizeof(struct xunpgen);
231 xug = (struct xunpgen *)((char *)xug + xug->xug_len)) {
232 xunp = (struct xunpcb *)xug;
233 so = &xunp->xu_socket;
235 /* Ignore PCBs which were freed during copyout. */
236 if (xunp->xu_unp.unp_gencnt > oxug->xug_gen)
238 unixdomainpr(xunp, so);
240 if (xug != oxug && xug->xug_gen != oxug->xug_gen) {
241 if (oxug->xug_count > xug->xug_count) {
242 printf("Some %s sockets may have been deleted.\n",
244 } else if (oxug->xug_count < xug->xug_count) {
245 printf("Some %s sockets may have been created.\n",
248 printf("Some %s sockets may have been created or deleted",
257 unixdomainpr(struct xunpcb *xunp, struct xsocket *so)
260 struct sockaddr_un *sa;
261 static int first = 1;
268 sa = (struct sockaddr_un *)0;
270 if (first && !Lflag) {
271 printf("Active UNIX domain sockets\n");
273 "%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
274 "Address", "Type", "Recv-Q", "Send-Q",
275 "Inode", "Conn", "Refs", "Nextref");
279 if (Lflag && so->so_qlimit == 0)
283 snprintf(buf1, 15, "%d/%d/%d", so->so_qlen,
284 so->so_incqlen, so->so_qlimit);
285 printf("unix %-14.14s", buf1);
287 printf("%8lx %-6.6s %6u %6u %8lx %8lx %8lx %8lx",
288 (long)so->so_pcb, socktype[so->so_type], so->so_rcv.sb_cc,
289 so->so_snd.sb_cc, (long)unp->unp_vnode, (long)unp->unp_conn,
290 (long)LIST_FIRST(&unp->unp_refs),
291 (long)LIST_NEXT(unp, unp_reflink));
295 (int)(sa->sun_len - offsetof(struct sockaddr_un, sun_path)),