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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Copyright 2019 Joyent, Inc.
*/
#include <sys/types.h>
#include <sys/stropts.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <mdb/mdb_modapi.h>
#include <mdb/mdb_ks.h>
/*
* Look up the symbol name for the given sockparams list and walk
* all the entries.
*/
static boolean_t
sockparams_walk_list(const char *symname, int argc, const mdb_arg_t *argv)
{
GElf_Sym sym;
if (mdb_lookup_by_name(symname, &sym)) {
mdb_warn("can't find symbol %s", symname);
return (B_FALSE);
}
if (mdb_pwalk_dcmd("list", "sockfs`sockparams", argc, argv,
sym.st_value) != 0) {
mdb_warn("can't walk %s", symname);
return (B_FALSE);
}
return (B_TRUE);
}
/*
* dcmd to print sockparams info.
*
* If no address is given then the default is to print all sockparams on the
* global list (i.e., installed with soconfig(1)). To also print the ephemeral
* entries the '-e' flag should be used. Only ephemeral entries can be printed
* by specifying the '-E' flag.
*/
static int
sockparams_prt(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
struct sockparams sp;
char strdev[MAXPATHLEN];
char sockmod[MODMAXNAMELEN];
if ((flags & DCMD_ADDRSPEC) == 0) {
uint_t opt_e = 0;
uint_t opt_E = 0;
/*
* Determine what lists should be printed
*/
if (mdb_getopts(argc, argv,
'e', MDB_OPT_SETBITS, 1, &opt_e,
'E', MDB_OPT_SETBITS, 1, &opt_E, NULL) != argc)
return (DCMD_USAGE);
if (!opt_E) {
if (!sockparams_walk_list("sphead", argc, argv))
return (DCMD_ERR);
}
if (opt_e || opt_E) {
if (!sockparams_walk_list("sp_ephem_list", argc, argv))
return (DCMD_ERR);
}
return (DCMD_OK);
}
/*
* If we are piping the output, then just print out the address,
* otherwise summarize the sockparams info.
*/
if ((flags & DCMD_PIPE_OUT) != 0) {
mdb_printf("%#lr\n", addr);
return (DCMD_OK);
}
if (DCMD_HDRSPEC(flags)) {
mdb_printf("%-?s %3s %3s %3s %15s %15s %6s %6s\n",
"ADDR", "FAM", "TYP", "PRO", "STRDEV", "SOCKMOD", "REFS",
"FLGS");
}
if (mdb_vread(&sp, sizeof (sp), addr) == -1) {
mdb_warn("failed to read sockparams at %0?p", addr);
return (DCMD_ERR);
}
if ((sp.sp_sdev_info.sd_devpath == NULL) ||
(mdb_readstr(strdev, sizeof (strdev),
(uintptr_t)sp.sp_sdev_info.sd_devpath) <= 0))
strcpy(strdev, "-");
if (mdb_readstr(sockmod, sizeof (sockmod),
(uintptr_t)sp.sp_smod_name) <= 0)
strcpy(sockmod, "");
mdb_printf("%0?p %3u %3u %3u %15s %15s %6u %#6x\n",
addr,
sp.sp_family, sp.sp_type, sp.sp_protocol,
strdev, sockmod, sp.sp_refcnt,
sp.sp_flags);
return (DCMD_OK);
}
/*
* Help function
*/
void
sockparams_help(void)
{
mdb_printf("Print sockparams information for a give sockparams ptr.\n"
"Without the address, list available sockparams. Default "
"behavior is to list only entries that were installed by the "
"admin (via soconfig(8)).\n\n"
"Options:\n"
" -e:\t\tlist ephemeral sockparams\n"
" -E:\t\tonly list ephemeral sockparams\n");
}
static const mdb_dcmd_t dcmds[] = {
{ "sockparams", "[-eE]", "print sockparams", sockparams_prt,
sockparams_help },
{ NULL }
};
static const mdb_modinfo_t modinfo = { MDB_API_VERSION, dcmds, NULL };
const mdb_modinfo_t *
_mdb_init(void)
{
return (&modinfo);
}
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