/*
* 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.
*/
#include <sys/types.h>
#include <sys/atomic.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/modctl.h>
#include <sys/sunddi.h>
#include <ipp/ipp.h>
#include <ipp/ipp_config.h>
#include <inet/common.h>
#include <ipp/dlcosmk/dlcosmk_impl.h>
#define D_SM_COMMENT "IPP dlcosmk marker module"
/* DDI file for dlcosmk ipp module */
static int dlcosmk_create_action(ipp_action_id_t, nvlist_t **, ipp_flags_t);
static int dlcosmk_modify_action(ipp_action_id_t, nvlist_t **, ipp_flags_t);
static int dlcosmk_destroy_action(ipp_action_id_t, ipp_flags_t);
static int dlcosmk_info(ipp_action_id_t, int (*)(nvlist_t *, void *), void *,
ipp_flags_t);
static int dlcosmk_invoke_action(ipp_action_id_t, ipp_packet_t *);
static int dlcosmk_statinit(ipp_action_id_t, dlcosmk_data_t *);
static int dlcosmk_update_stats(ipp_stat_t *, void *, int);
/* Entry points for this IPP module */
ipp_ops_t dlcosmk_ops = {
IPPO_REV,
dlcosmk_create_action, /* ippo_action_create */
dlcosmk_modify_action, /* ippo_action_modify */
dlcosmk_destroy_action, /* ippo_action_destroy */
dlcosmk_info, /* ippo_action_info */
dlcosmk_invoke_action /* ippo_action_invoke */
};
extern struct mod_ops mod_ippops;
/*
* Module linkage information for the kernel.
*/
static struct modlipp modlipp = {
&mod_ippops,
D_SM_COMMENT,
&dlcosmk_ops
};
static struct modlinkage modlinkage = {
MODREV_1,
(void *)&modlipp,
NULL
};
int
_init(void)
{
return (mod_install(&modlinkage));
}
int
_fini(void)
{
return (mod_remove(&modlinkage));
}
int
_info(struct modinfo *modinfop)
{
return (mod_info(&modlinkage, modinfop));
}
static int
dlcosmk_create_action(ipp_action_id_t aid, nvlist_t **nvlpp,
ipp_flags_t flags)
{
nvlist_t *nvlp;
dlcosmk_data_t *dlcosmk_data;
char *next_action;
int err;
uint32_t bstats, param;
ASSERT((nvlpp != NULL) && (*nvlpp != NULL));
nvlp = *nvlpp;
*nvlpp = NULL; /* nvlist should be NULL on return */
if ((dlcosmk_data = kmem_zalloc(DLCOSMK_DATA_SZ, KM_NOSLEEP)) == NULL) {
nvlist_free(nvlp);
return (ENOMEM);
}
/* parse next action name */
if ((err = nvlist_lookup_string(nvlp, DLCOSMK_NEXT_ACTION_NAME,
&next_action)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_create_action: invalid config, "\
"next_action name missing\n"));
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (err);
}
if ((dlcosmk_data->next_action =
ipp_action_lookup(next_action)) == IPP_ACTION_INVAL) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_create_action: next_action invalid\n"));
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (EINVAL);
}
/* parse cos - from the config file */
if ((err = nvlist_lookup_byte(nvlp, DLCOSMK_COS,
&dlcosmk_data->usr_pri)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_create_action: invalid config, "\
"cos missing\n"));
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (err);
}
/* parse b_band - mapped from cos */
if ((err = nvlist_lookup_uint32(nvlp, DLCOSMK_BAND, &param)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_create_action: invalid config, "\
"b_band missing\n"));
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (err);
}
dlcosmk_data->b_band = param;
/* parse dl_priority.dl_max - mapped from cos */
if ((err = nvlist_lookup_uint32(nvlp, DLCOSMK_PRI, &param)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_create_action: invalid config, "\
"dl_priority missing\n"));
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (err);
}
dlcosmk_data->dl_max = param;
/* parse gather_stats boolean */
if ((err = nvlist_lookup_uint32(nvlp, IPP_ACTION_STATS_ENABLE, &bstats))
!= 0) {
dlcosmk_data->gather_stats = B_FALSE;
} else {
/* If stats is needed, initialize the stats structure */
dlcosmk_data->gather_stats = (bstats != 0) ? B_TRUE : B_FALSE;
if (dlcosmk_data->gather_stats) {
if ((err = dlcosmk_statinit(aid, dlcosmk_data)) != 0) {
nvlist_free(nvlp);
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (err);
}
}
}
/* Free the nvlist */
nvlist_free(nvlp);
/* set action chain reference */
if ((err = ipp_action_ref(aid, dlcosmk_data->next_action,
flags)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_action_ref " \
"returned with error %d\n", err));
ipp_stat_destroy(dlcosmk_data->stats);
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (err);
}
ipp_action_set_ptr(aid, (void *)dlcosmk_data);
return (0);
}
static int
dlcosmk_modify_action(ipp_action_id_t aid, nvlist_t **nvlpp, ipp_flags_t flags)
{
nvlist_t *nvlp;
int err = 0;
uint32_t band, dlpri;
uint8_t config_type;
uint8_t cos;
char *next_action_name;
ipp_action_id_t next_action;
dlcosmk_data_t *dlcosmk_data;
uint32_t bstats;
ASSERT((nvlpp != NULL) && (*nvlpp != NULL));
nvlp = *nvlpp;
*nvlpp = NULL; /* nvlist should be NULL when this returns */
if ((err = nvlist_lookup_byte(nvlp, IPP_CONFIG_TYPE, &config_type))
!= 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_modify_action: invalid configuration "\
"type\n"));
return (err);
}
if (config_type != IPP_SET) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_modify_action: invalid configuration "\
"type %d\n", config_type));
return (EINVAL);
}
dlcosmk_data = (dlcosmk_data_t *)ipp_action_get_ptr(aid);
ASSERT(dlcosmk_data != NULL);
/* parse next action name, if present */
if ((err = nvlist_lookup_string(nvlp, DLCOSMK_NEXT_ACTION_NAME,
&next_action_name)) == 0) {
/* lookup action name to get action id */
if ((next_action = ipp_action_lookup(next_action_name))
== IPP_ACTION_INVAL) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_modify_action: next_action "\
"invalid\n"));
return (EINVAL);
}
/* reference new action */
if ((err = ipp_action_ref(aid, next_action, flags)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_modify_action: ipp_action_ref "\
"returned with error %d\n", err));
return (err);
}
/* unref old action */
err = ipp_action_unref(aid, dlcosmk_data->next_action, flags);
ASSERT(err == 0);
dlcosmk_data->next_action = next_action;
}
/* parse cos, if present */
if ((err = nvlist_lookup_byte(nvlp, DLCOSMK_COS, &cos)) == 0) {
/* parse b_band, mapped from cos */
if ((err = nvlist_lookup_uint32(nvlp, DLCOSMK_BAND,
&band)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_modify_action: b_band not "\
"provided\n"));
return (err);
}
/* parse dl_priority, mapped from cos */
if ((err = nvlist_lookup_uint32(nvlp, DLCOSMK_PRI,
&dlpri)) != 0) {
nvlist_free(nvlp);
dlcosmk0dbg(("dlcosmk_modify_action: dl_priority not "\
"provided\n"));
return (err);
}
/* Have all the three values, change them */
dlcosmk_data->usr_pri = cos;
dlcosmk_data->b_band = band;
dlcosmk_data->dl_max = dlpri;
}
/* parse gather_stats boolean, if present */
if ((err = nvlist_lookup_uint32(nvlp, IPP_ACTION_STATS_ENABLE, &bstats))
== 0) {
boolean_t val = (bstats != 0) ? B_TRUE : B_FALSE;
/* Turning on stats */
if (!dlcosmk_data->gather_stats && val) {
if ((err = dlcosmk_statinit(aid, dlcosmk_data)) != 0) {
nvlist_free(nvlp);
return (err);
}
/* Turning off stats */
} else if (!val && dlcosmk_data->gather_stats) {
ipp_stat_destroy(dlcosmk_data->stats);
}
dlcosmk_data->gather_stats = val;
}
/* Free thenvlist */
nvlist_free(nvlp);
return (0);
}
static int
dlcosmk_destroy_action(ipp_action_id_t aid, ipp_flags_t flags)
{
dlcosmk_data_t *dlcosmk_data;
int err;
dlcosmk_data = (dlcosmk_data_t *)ipp_action_get_ptr(aid);
ASSERT(dlcosmk_data != NULL);
/* Destroy stats, if gathered */
if (dlcosmk_data->gather_stats) {
ipp_stat_destroy(dlcosmk_data->stats);
}
/* unreference the action */
err = ipp_action_unref(aid, dlcosmk_data->next_action, flags);
ASSERT(err == 0);
kmem_free(dlcosmk_data, DLCOSMK_DATA_SZ);
return (0);
}
static int
dlcosmk_invoke_action(ipp_action_id_t aid, ipp_packet_t *packet)
{
dlcosmk_data_t *dlcosmk_data;
mblk_t *mp = NULL;
int err;
ip_priv_t *priv;
ASSERT(packet != NULL);
/* get mblk from ipp_packet structure */
mp = ipp_packet_get_data(packet);
priv = (ip_priv_t *)ipp_packet_get_private(packet);
dlcosmk_data = (dlcosmk_data_t *)ipp_action_get_ptr(aid);
ASSERT(dlcosmk_data != NULL);
/* dlcosmk packet as configured */
if ((err = dlcosmk_process(&mp, dlcosmk_data, priv->ill_index,
priv->proc)) != 0) {
return (err);
} else {
/* return packet with next action set */
return (ipp_packet_next(packet, dlcosmk_data->next_action));
}
}
static int
dlcosmk_statinit(ipp_action_id_t aid, dlcosmk_data_t *dlcosmk_data)
{
int err;
dlcosmk_stat_t *statp;
/* install stats entry */
if ((err = ipp_stat_create(aid, DLCOSMK_STATS_STRING,
DLCOSMK_STATS_COUNT, dlcosmk_update_stats, dlcosmk_data,
&dlcosmk_data->stats)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_create " \
"returned with error %d\n", err));
return (err);
}
statp = (dlcosmk_stat_t *)(dlcosmk_data->stats)->ipps_data;
ASSERT(statp != NULL);
if ((err = ipp_stat_named_init(dlcosmk_data->stats, "npackets",
IPP_STAT_UINT64, &statp->npackets)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_named_init " \
"returned with error %d\n", err));
return (err);
}
if ((err = ipp_stat_named_init(dlcosmk_data->stats, "ipackets",
IPP_STAT_UINT64, &statp->ipackets)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_named_init " \
"returned with error %d\n", err));
return (err);
}
if ((err = ipp_stat_named_init(dlcosmk_data->stats, "epackets",
IPP_STAT_UINT64, &statp->epackets)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_named_init " \
"returned with error %d\n", err));
return (err);
}
if ((err = ipp_stat_named_init(dlcosmk_data->stats, "usr_pri",
IPP_STAT_INT32, &statp->usr_pri)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_named_init " \
"returned with error %d", err));
return (err);
}
if ((err = ipp_stat_named_init(dlcosmk_data->stats, "b_band",
IPP_STAT_INT32, &statp->b_band)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_named_init " \
"returned with error %d\n", err));
return (err);
}
if ((err = ipp_stat_named_init(dlcosmk_data->stats, "dl_max",
IPP_STAT_INT32, &statp->dl_max)) != 0) {
dlcosmk0dbg(("dlcosmk_create_action: ipp_stat_named_init " \
"returned with error %d\n", err));
return (err);
}
ipp_stat_install(dlcosmk_data->stats);
return (0);
}
static int
dlcosmk_update_stats(ipp_stat_t *sp, void *arg, int rw)
{
dlcosmk_data_t *dlcosmk_data = (dlcosmk_data_t *)arg;
dlcosmk_stat_t *snames = (dlcosmk_stat_t *)sp->ipps_data;
uint32_t upri, bband;
ASSERT(dlcosmk_data != NULL);
ASSERT(snames != NULL);
upri = dlcosmk_data->usr_pri;
bband = dlcosmk_data->b_band;
(void) ipp_stat_named_op(&snames->npackets, &dlcosmk_data->npackets,
rw);
(void) ipp_stat_named_op(&snames->ipackets, &dlcosmk_data->ipackets,
rw);
(void) ipp_stat_named_op(&snames->epackets, &dlcosmk_data->epackets,
rw);
(void) ipp_stat_named_op(&snames->usr_pri, &upri, rw);
(void) ipp_stat_named_op(&snames->b_band, &bband, rw);
(void) ipp_stat_named_op(&snames->dl_max, &dlcosmk_data->dl_max, rw);
return (0);
}
/* ARGSUSED */
static int
dlcosmk_info(ipp_action_id_t aid, int (*fn)(nvlist_t *, void *), void *arg,
ipp_flags_t flags)
{
nvlist_t *nvlp;
dlcosmk_data_t *dlcosmk_data;
char *next_action;
int err;
ASSERT(fn != NULL);
dlcosmk_data = (dlcosmk_data_t *)ipp_action_get_ptr(aid);
ASSERT(dlcosmk_data != NULL);
/* allocate nvlist to be passed back */
if ((err = nvlist_alloc(&nvlp, NV_UNIQUE_NAME, KM_NOSLEEP)) != 0) {
dlcosmk0dbg(("dlcosmk_info: error allocating memory\n"));
return (err);
}
/* look up next action with the next action id */
if ((err = ipp_action_name(dlcosmk_data->next_action,
&next_action)) != 0) {
dlcosmk0dbg(("dlcosmk_info: next action not available\n"));
nvlist_free(nvlp);
return (err);
}
/* add next action name */
if ((err = nvlist_add_string(nvlp, DLCOSMK_NEXT_ACTION_NAME,
next_action)) != 0) {
dlcosmk0dbg(("dlcosmk_info: error adding next action\n"));
nvlist_free(nvlp);
kmem_free(next_action, (strlen(next_action) + 1));
return (err);
}
/* free action name */
kmem_free(next_action, (strlen(next_action) + 1));
/* add config type */
if ((err = nvlist_add_byte(nvlp, IPP_CONFIG_TYPE, IPP_SET)) != 0) {
dlcosmk0dbg(("dlcosmk_info: error adding config. type\n"));
nvlist_free(nvlp);
return (err);
}
/* just give the cos, since that is what is provided in the config */
if ((err = nvlist_add_byte(nvlp, DLCOSMK_COS, dlcosmk_data->usr_pri))
!= 0) {
dlcosmk0dbg(("dlcosmk_info: error adding cos\n"));
nvlist_free(nvlp);
return (err);
}
/* add gather stats boolean */
if ((err = nvlist_add_uint32(nvlp, IPP_ACTION_STATS_ENABLE,
(dlcosmk_data->gather_stats ? 1 : 0))) != 0) {
dlcosmk0dbg(("dlcosmk_info: error adding stats status\n"));
nvlist_free(nvlp);
return (err);
}
/* call back with nvlist */
err = fn(nvlp, arg);
nvlist_free(nvlp);
return (err);
}