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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright (c) 2018, Joyent, Inc.
*/
#include "ndievents.h"
#include <sys/sunndi.h>
#include <sys/ndi_impldefs.h>
#include <sys/dditypes.h>
#include <sys/ddi_impldefs.h>
#include <sys/sunddi.h>
#include <sys/param.h>
int
dip_to_pathname(struct dev_info *device, char *path, int buflen)
{
char *bp;
char *addr;
char addr_str[32];
char nodename[MAXNAMELEN];
struct dev_info devi_parent;
if (!device) {
mdb_warn("Unable to access devinfo.");
return (-1);
}
if (device->devi_parent == NULL) {
if (mdb_readstr(nodename, sizeof (nodename),
(uintptr_t)device->devi_node_name) == -1) {
return (-1);
}
if (sizeof (nodename) > (buflen - strlen(path))) {
return (-1);
}
strncpy(path, nodename, sizeof (nodename));
return (0);
}
if (mdb_vread(&devi_parent, sizeof (struct dev_info),
(uintptr_t)device->devi_parent) == -1) {
mdb_warn("Unable to access devi_parent at %p",
(uintptr_t)device->devi_parent);
return (-1);
}
if (dip_to_pathname(&devi_parent, path, buflen) == -1) {
return (-1);
}
if (mdb_readstr(nodename, sizeof (nodename),
(uintptr_t)device->devi_node_name) == -1) {
return (-1);
}
if (device->devi_node_state < DS_INITIALIZED) {
addr_str[0] = '\0';
} else {
addr = device->devi_addr;
if (mdb_readstr(addr_str, sizeof (addr_str),
(uintptr_t)addr) == -1) {
return (-1);
}
}
bp = path + strlen(path);
if (addr_str[0] == '\0') {
(void) mdb_snprintf(bp, buflen - strlen(path), "/%s", nodename);
} else {
(void) mdb_snprintf(bp, buflen - strlen(path), "/%s@%s",
nodename, addr_str);
}
return (0);
}
/*ARGSUSED*/
int
ndi_callback_print(struct ndi_event_cookie *cookie, uint_t flags)
{
struct ndi_event_callbacks *callback_list;
struct ndi_event_callbacks cb;
char device_path[MAXPATHLEN];
struct dev_info devi;
if (!cookie) {
return (DCMD_ERR);
}
callback_list = cookie->callback_list;
while (callback_list != NULL) {
if (mdb_vread(&cb, sizeof (struct ndi_event_callbacks),
(uintptr_t)callback_list) == -1) {
mdb_warn("Could not read callback structure at"
" %p", callback_list);
return (DCMD_ERR);
}
if (mdb_vread(&devi, sizeof (struct dev_info),
(uintptr_t)cb.ndi_evtcb_dip) == -1) {
mdb_warn("Could not read devinfo structure at"
" %p", cb.ndi_evtcb_dip);
return (DCMD_ERR);
}
if (dip_to_pathname(&devi, device_path, sizeof (device_path))
== -1) {
return (DCMD_ERR);
}
mdb_printf("\t\tCallback Registered By: %s\n", device_path);
mdb_printf("\t\t Callback Address:\t%-?p\n"
"\t\t Callback Function:\t%-p\n"
"\t\t Callback Args:\t%-?p\n"
"\t\t Callback Cookie:\t%-?p\n",
callback_list, cb.ndi_evtcb_callback, cb.ndi_evtcb_arg,
cb.ndi_evtcb_cookie);
callback_list = cb.ndi_evtcb_next;
}
return (DCMD_OK);
}
int
ndi_event_print(struct ndi_event_hdl *hdl, uint_t flags)
{
struct ndi_event_definition def;
struct ndi_event_cookie cookie;
struct ndi_event_cookie *cookie_list;
char ndi_event_name[256];
if (!hdl)
return (DCMD_ERR);
cookie_list = hdl->ndi_evthdl_cookie_list;
if (cookie_list == NULL) {
mdb_printf("\tNo cookies defined for this handle.\n");
return (DCMD_OK);
}
while (cookie_list != NULL) {
if (mdb_vread(&cookie, sizeof (struct ndi_event_cookie),
(uintptr_t)cookie_list) == -1) {
mdb_warn("Unable to access cookie list");
return (DCMD_ERR);
}
if (mdb_vread(&def, sizeof (struct ndi_event_definition),
(uintptr_t)cookie.definition) == -1) {
mdb_warn("Unable to access definition at %p",
cookie.definition);
return (DCMD_ERR);
}
if (mdb_readstr(ndi_event_name, sizeof (ndi_event_name),
(uintptr_t)def.ndi_event_name) == -1) {
mdb_warn("Unable to read cookie name.");
return (DCMD_ERR);
}
mdb_printf("\tCookie(%s %p) :Plevel(%d)\n\tddip(%p)"
" : Attr(%d)\n",
ndi_event_name, cookie_list, def.ndi_event_plevel,
cookie.ddip, def.ndi_event_attributes);
ndi_callback_print(&cookie, flags);
cookie_list = cookie.next_cookie;
}
return (0);
}
/*ARGSUSED*/
int
ndi_event_hdl(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
{
struct dev_info devi;
struct ndi_event_hdl handle;
char path[MAXPATHLEN];
int done;
if (!(flags & DCMD_ADDRSPEC)) {
return (DCMD_USAGE);
}
if (mdb_vread(&handle, sizeof (struct ndi_event_hdl), addr) == -1) {
mdb_warn("failed to read ndi_event_hdl at %p", addr);
return (DCMD_ERR);
}
if (mdb_vread(&devi, sizeof (struct dev_info),
(uintptr_t)handle.ndi_evthdl_dip) == -1) {
mdb_warn("failed to read devinfo node at %p",
handle.ndi_evthdl_dip);
return (DCMD_ERR);
}
if (dip_to_pathname(&devi, path, sizeof (path)) == -1) {
return (DCMD_ERR);
}
done = 0;
while (!done) {
mdb_printf("%<b>Handle%</b> (%p) :%<b> Path%</b> (%s) : %<b>"
"dip %</b>(%p) \n", addr, path, handle.ndi_evthdl_dip);
mdb_printf("mutexes: handle(%p) callback(%p)\n",
handle.ndi_evthdl_mutex, handle.ndi_evthdl_cb_mutex);
ndi_event_print(&handle, flags);
if (handle.ndi_next_hdl == NULL) {
done = 1;
} else {
addr = (uintptr_t)handle.ndi_next_hdl;
if (mdb_vread(&handle, sizeof (struct ndi_event_hdl),
(uintptr_t)addr) == -1) {
mdb_warn("failed to read ndi_event_hdl at %p",
addr);
break;
}
}
}
return (0);
}
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