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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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright (c) 2012, Joyent, Inc. All rights reserved.
*/
#include <mdb/mdb_modapi.h>
#include <mdb/mdb_ks.h>
#include <mdb/mdb_ctf.h>
#include <sys/types.h>
#include <sys/netstack.h>
int
netstack_walk_init(mdb_walk_state_t *wsp)
{
GElf_Sym sym;
uintptr_t addr;
if (mdb_lookup_by_name("netstack_head", &sym) == -1) {
mdb_warn("couldn't find netstack_head");
return (WALK_ERR);
}
addr = (uintptr_t)sym.st_value;
if (mdb_vread(&wsp->walk_addr, sizeof (wsp->walk_addr), addr) == -1) {
mdb_warn("failed to read address of initial netstack "
"at %p", addr);
return (WALK_ERR);
}
return (WALK_NEXT);
}
int
netstack_walk_step(mdb_walk_state_t *wsp)
{
int status;
netstack_t nss;
if (wsp->walk_addr == 0)
return (WALK_DONE);
if (mdb_vread(&nss, sizeof (netstack_t), wsp->walk_addr) == -1) {
mdb_warn("failed to read netstack at %p", wsp->walk_addr);
return (WALK_ERR);
}
status = wsp->walk_callback(wsp->walk_addr, &nss,
wsp->walk_cbdata);
if (status != WALK_NEXT)
return (status);
wsp->walk_addr = (uintptr_t)nss.netstack_next;
return (status);
}
/*ARGSUSED*/
int
netstack(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
netstack_t nss;
uint_t quiet = FALSE;
uint_t verbose = FALSE;
if (!(flags & DCMD_ADDRSPEC)) {
if (mdb_walk_dcmd("genunix`netstack", "genunix`netstack",
argc, argv) == -1) {
mdb_warn("failed to walk netstack");
return (DCMD_ERR);
}
return (DCMD_OK);
}
if (mdb_getopts(argc, argv,
'v', MDB_OPT_SETBITS, TRUE, &verbose,
'q', MDB_OPT_SETBITS, TRUE, &quiet,
NULL) != argc)
return (DCMD_USAGE);
if (DCMD_HDRSPEC(flags) && !quiet) {
mdb_printf("%?s %-7s %6s\n",
"ADDR", "STACKID", "FLAGS");
}
if (mdb_vread(&nss, sizeof (nss), addr) == -1) {
mdb_warn("couldn't read netstack at %p", addr);
return (DCMD_ERR);
}
/*
* Options are specified for filtering, so If any option is specified on
* the command line, just print address and exit.
*/
if (quiet) {
mdb_printf("%0?p\n", addr);
return (DCMD_OK);
}
mdb_printf("%0?p %6d %06x\n",
addr, nss.netstack_stackid, nss.netstack_flags);
return (DCMD_OK);
}
static int
netstackid_lookup_cb(uintptr_t addr, const netstack_t *ns, void *arg)
{
netstackid_t nid = *(uintptr_t *)arg;
if (ns->netstack_stackid == nid)
mdb_printf("%p\n", addr);
return (WALK_NEXT);
}
/*ARGSUSED*/
int
netstackid2netstack(uintptr_t addr, uint_t flags, int argc,
const mdb_arg_t *argv)
{
if (!(flags & DCMD_ADDRSPEC) || argc != 0)
return (DCMD_USAGE);
if (mdb_walk("netstack", (mdb_walk_cb_t)netstackid_lookup_cb, &addr) ==
-1) {
mdb_warn("failed to walk zone");
return (DCMD_ERR);
}
return (DCMD_OK);
}
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