1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26 #include <sys/types.h>
27 #include <sys/stropts.h>
28 #include <sys/socket.h>
29 #include <sys/socketvar.h>
30
31 #include <mdb/mdb_modapi.h>
32 #include <mdb/mdb_ks.h>
33
34 /*
35 * Look up the symbol name for the given sockparams list and walk
36 * all the entries.
37 */
38 static boolean_t
sockparams_walk_list(const char * symname,int argc,const mdb_arg_t * argv)39 sockparams_walk_list(const char *symname, int argc, const mdb_arg_t *argv)
40 {
41 GElf_Sym sym;
42
43 if (mdb_lookup_by_name(symname, &sym)) {
44 mdb_warn("can't find symbol %s", symname);
45 return (B_FALSE);
46 }
47
48 if (mdb_pwalk_dcmd("list", "sockfs`sockparams", argc, argv,
49 sym.st_value) != 0) {
50 mdb_warn("can't walk %s", symname);
51 return (B_FALSE);
52 }
53
54 return (B_TRUE);
55 }
56
57 /*
58 * dcmd to print sockparams info.
59 *
60 * If no address is given then the default is to print all sockparams on the
61 * global list (i.e., installed with soconfig(1)). To also print the ephemeral
62 * entries the '-e' flag should be used. Only ephemeral entries can be printed
63 * by specifying the '-E' flag.
64 */
65 static int
sockparams_prt(uintptr_t addr,uint_t flags,int argc,const mdb_arg_t * argv)66 sockparams_prt(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
67 {
68 struct sockparams sp;
69
70 if ((flags & DCMD_ADDRSPEC) == 0) {
71 uint_t opt_e = 0;
72 uint_t opt_E = 0;
73
74 /*
75 * Determine what lists should be printed
76 */
77 if (mdb_getopts(argc, argv,
78 'e', MDB_OPT_SETBITS, 1, &opt_e,
79 'E', MDB_OPT_SETBITS, 1, &opt_E) != argc)
80 return (DCMD_USAGE);
81
82 if (!opt_E) {
83 if (!sockparams_walk_list("sphead", argc, argv))
84 return (DCMD_ERR);
85 }
86
87 if (opt_e || opt_E) {
88 if (!sockparams_walk_list("sp_ephem_list", argc, argv))
89 return (DCMD_ERR);
90 }
91
92 return (DCMD_OK);
93 }
94
95 /*
96 * If we are piping the output, then just print out the address,
97 * otherwise summarize the sockparams info.
98 */
99 if ((flags & DCMD_PIPE_OUT) != 0) {
100 mdb_printf("%#lr\n", addr);
101 return (DCMD_OK);
102 }
103
104 if (DCMD_HDRSPEC(flags)) {
105 mdb_printf("%-?s %3s %3s %3s %15s %15s %6s %6s\n",
106 "ADDR", "FAM", "TYP", "PRO", "STRDEV", "SOCKMOD", "REFS",
107 "FLGS");
108 }
109
110 if (mdb_vread(&sp, sizeof (sp), addr) == -1) {
111 mdb_warn("failed to read sockparams at %0?p", addr);
112 return (DCMD_ERR);
113 }
114
115 mdb_printf("%0?p %3u %3u %3u %15s %15s %6u %#6x\n",
116 addr,
117 sp.sp_family, sp.sp_type, sp.sp_protocol,
118 (sp.sp_sdev_info.sd_devpath != 0) ?
119 sp.sp_sdev_info.sd_devpath : "-",
120 sp.sp_smod_name, sp.sp_refcnt,
121 sp.sp_flags);
122
123
124 return (DCMD_OK);
125 }
126
127 /*
128 * Help function
129 */
130 void
sockparams_help(void)131 sockparams_help(void)
132 {
133 mdb_printf("Print sockparams information for a give sockparams ptr.\n"
134 "Without the address, list available sockparams. Default "
135 "behavior is to list only entries that were installed by the "
136 "admin (via soconfig(1M)).\n\n"
137 "Options:\n"
138 " -e:\t\tlist ephemeral sockparams\n"
139 " -E:\t\tonly list ephemeral sockparams\n");
140 }
141
142 static const mdb_dcmd_t dcmds[] = {
143 { "sockparams", "[-eE]", "print sockparams", sockparams_prt,
144 sockparams_help },
145 { NULL }
146 };
147
148 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL };
149
150 const mdb_modinfo_t *
_mdb_init(void)151 _mdb_init(void)
152 {
153 return (&modinfo);
154 }
155