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 char strdev[MAXPATHLEN];
70 char sockmod[MODMAXNAMELEN];
71
72 if ((flags & DCMD_ADDRSPEC) == 0) {
73 uint_t opt_e = 0;
74 uint_t opt_E = 0;
75
76 /*
77 * Determine what lists should be printed
78 */
79 if (mdb_getopts(argc, argv,
80 'e', MDB_OPT_SETBITS, 1, &opt_e,
81 'E', MDB_OPT_SETBITS, 1, &opt_E) != argc)
82 return (DCMD_USAGE);
83
84 if (!opt_E) {
85 if (!sockparams_walk_list("sphead", argc, argv))
86 return (DCMD_ERR);
87 }
88
89 if (opt_e || opt_E) {
90 if (!sockparams_walk_list("sp_ephem_list", argc, argv))
91 return (DCMD_ERR);
92 }
93
94 return (DCMD_OK);
95 }
96
97 /*
98 * If we are piping the output, then just print out the address,
99 * otherwise summarize the sockparams info.
100 */
101 if ((flags & DCMD_PIPE_OUT) != 0) {
102 mdb_printf("%#lr\n", addr);
103 return (DCMD_OK);
104 }
105
106 if (DCMD_HDRSPEC(flags)) {
107 mdb_printf("%-?s %3s %3s %3s %15s %15s %6s %6s\n",
108 "ADDR", "FAM", "TYP", "PRO", "STRDEV", "SOCKMOD", "REFS",
109 "FLGS");
110 }
111
112 if (mdb_vread(&sp, sizeof (sp), addr) == -1) {
113 mdb_warn("failed to read sockparams at %0?p", addr);
114 return (DCMD_ERR);
115 }
116
117 if ((sp.sp_sdev_info.sd_devpath == NULL) ||
118 (mdb_readstr(strdev, sizeof (strdev),
119 (uintptr_t)sp.sp_sdev_info.sd_devpath) <= 0))
120 strcpy(strdev, "-");
121 if (mdb_readstr(sockmod, sizeof (sockmod),
122 (uintptr_t)sp.sp_smod_name) <= 0)
123 strcpy(sockmod, "");
124
125 mdb_printf("%0?p %3u %3u %3u %15s %15s %6u %#6x\n",
126 addr,
127 sp.sp_family, sp.sp_type, sp.sp_protocol,
128 strdev, sockmod, sp.sp_refcnt,
129 sp.sp_flags);
130
131
132 return (DCMD_OK);
133 }
134
135 /*
136 * Help function
137 */
138 void
sockparams_help(void)139 sockparams_help(void)
140 {
141 mdb_printf("Print sockparams information for a give sockparams ptr.\n"
142 "Without the address, list available sockparams. Default "
143 "behavior is to list only entries that were installed by the "
144 "admin (via soconfig(1M)).\n\n"
145 "Options:\n"
146 " -e:\t\tlist ephemeral sockparams\n"
147 " -E:\t\tonly list ephemeral sockparams\n");
148 }
149
150 static const mdb_dcmd_t dcmds[] = {
151 { "sockparams", "[-eE]", "print sockparams", sockparams_prt,
152 sockparams_help },
153 { NULL }
154 };
155
156 static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL };
157
158 const mdb_modinfo_t *
_mdb_init(void)159 _mdb_init(void)
160 {
161 return (&modinfo);
162 }
163