/*
* 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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdlib.h>
#include <strings.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/stropts.h>
#include <netinet/in.h>
#include <stddef.h>
#include "libilb.h"
#include "libilb_impl.h"
/* ARGSUSED */
static ilb_status_t
i_drop_hc(ilb_handle_t h, ilb_hc_info_t *hc, void *arg)
{
return (ilb_destroy_hc(h, hc->hci_name));
}
/* ARGSUSED */
static ilb_status_t
i_drop_rule(ilb_handle_t h, ilb_rule_data_t *rd, void *arg)
{
return (ilb_destroy_rule(h, rd->r_name));
}
/* ARGSUSED */
static ilb_status_t
i_drop_sg_srvs(ilb_handle_t h, ilb_server_data_t *srv, const char *sgname,
void *arg)
{
return (ilb_rem_server_from_group(h, sgname, srv));
}
/* ARGSUSED */
static ilb_status_t
i_drop_sg(ilb_handle_t h, ilb_sg_data_t *sg, void *arg)
{
ilb_status_t rc;
rc = ilb_walk_servers(h, i_drop_sg_srvs, sg->sgd_name, (void *)sg);
if (rc != ILB_STATUS_OK)
return (rc);
return (ilb_destroy_servergroup(h, sg->sgd_name));
}
ilb_status_t
ilb_reset_config(ilb_handle_t h)
{
ilb_status_t rc;
if (h == NULL)
return (ILB_STATUS_EINVAL);
rc = ilb_walk_rules(h, i_drop_rule, NULL, NULL);
if (rc != ILB_STATUS_OK)
goto out;
rc = ilb_walk_servergroups(h, i_drop_sg, NULL, NULL);
if (rc != ILB_STATUS_OK)
goto out;
rc = ilb_walk_hc(h, i_drop_hc, NULL);
out:
return (rc);
}
ilb_status_t
ilb_create_rule(ilb_handle_t h, const ilb_rule_data_t *rd)
{
ilb_status_t rc;
ilb_comm_t *ic;
size_t ic_sz;
ilb_rule_info_t *rl;
if (h == ILB_INVALID_HANDLE || rd == NULL || *rd->r_name == '\0')
return (ILB_STATUS_EINVAL);
if ((ic = i_ilb_alloc_req(ILBD_CREATE_RULE, &ic_sz)) == NULL)
return (ILB_STATUS_ENOMEM);
rl = (ilb_rule_info_t *)&ic->ic_data;
/*
* Since the IP address representation in ilb_rule_data_t and
* ilb_rule_info_t is different, we need to convert between
* them.
*/
(void) strlcpy(rl->rl_name, rd->r_name, sizeof (rl->rl_name));
(void) strlcpy(rl->rl_sgname, rd->r_sgname, sizeof (rl->rl_sgname));
(void) strlcpy(rl->rl_hcname, rd->r_hcname, sizeof (rl->rl_hcname));
rl->rl_flags = rd->r_flags;
rl->rl_proto = rd->r_proto;
rl->rl_ipversion = rd->r_vip.ia_af;
rl->rl_minport = rd->r_minport;
if (ntohs(rd->r_maxport) < ntohs(rd->r_minport))
rl->rl_maxport = rd->r_minport;
else
rl->rl_maxport = rd->r_maxport;
rl->rl_algo = rd->r_algo;
rl->rl_topo = rd->r_topo;
rl->rl_conndrain = rd->r_conndrain;
rl->rl_nat_timeout = rd->r_nat_timeout;
rl->rl_sticky_timeout = rd->r_sticky_timeout;
rl->rl_hcport = rd->r_hcport;
rl->rl_hcpflag = rd->r_hcpflag;
IP_COPY_CLI_2_IMPL(&rd->r_vip, &rl->rl_vip);
IP_COPY_CLI_2_IMPL(&rd->r_stickymask, &rl->rl_stickymask);
IP_COPY_CLI_2_IMPL(&rd->r_nat_src_start, &rl->rl_nat_src_start);
IP_COPY_CLI_2_IMPL(&rd->r_nat_src_end, &rl->rl_nat_src_end);
rc = i_ilb_do_comm(h, ic, ic_sz, ic, &ic_sz);
if (rc != ILB_STATUS_OK)
goto out;
if (ic->ic_cmd != ILBD_CMD_OK)
rc = *(ilb_status_t *)&ic->ic_data;
out:
free(ic);
return (rc);
}
static ilb_status_t
i_ilb_rule_action(ilb_handle_t h, const char *name, ilbd_cmd_t cmd)
{
ilb_status_t rc;
ilb_comm_t *ic;
size_t ic_sz;
if (h == ILB_INVALID_HANDLE)
return (ILB_STATUS_EINVAL);
if ((ic = i_ilb_alloc_req(cmd, &ic_sz)) == NULL)
return (ILB_STATUS_ENOMEM);
if (name == NULL) {
bzero(&ic->ic_data, sizeof (ilbd_name_t));
} else {
(void) strlcpy((char *)&ic->ic_data, name,
sizeof (ilbd_name_t));
}
rc = i_ilb_do_comm(h, ic, ic_sz, ic, &ic_sz);
if (rc != ILB_STATUS_OK)
goto out;
if (ic->ic_cmd != ILBD_CMD_OK)
rc = *(ilb_status_t *)&ic->ic_data;
out:
free(ic);
return (rc);
}
ilb_status_t
ilb_destroy_rule(ilb_handle_t h, const char *name)
{
return (i_ilb_rule_action(h, name, ILBD_DESTROY_RULE));
}
ilb_status_t
ilb_enable_rule(ilb_handle_t h, const char *name)
{
return (i_ilb_rule_action(h, name, ILBD_ENABLE_RULE));
}
ilb_status_t
ilb_disable_rule(ilb_handle_t h, const char *name)
{
return (i_ilb_rule_action(h, name, ILBD_DISABLE_RULE));
}
ilb_status_t
i_ilb_retrieve_rule_names(ilb_handle_t h, ilb_comm_t **rbuf, size_t *rbufsz)
{
ilb_status_t rc;
ilb_comm_t ic, *tmp_rbuf;
*rbufsz = ILBD_MSG_SIZE;
if ((tmp_rbuf = malloc(*rbufsz)) == NULL)
return (ILB_STATUS_ENOMEM);
ic.ic_cmd = ILBD_RETRIEVE_RULE_NAMES;
rc = i_ilb_do_comm(h, &ic, sizeof (ic), tmp_rbuf, rbufsz);
if (rc != ILB_STATUS_OK)
goto out;
if (tmp_rbuf->ic_cmd == ILBD_CMD_OK) {
*rbuf = tmp_rbuf;
return (rc);
}
rc = *(ilb_status_t *)&tmp_rbuf->ic_data;
out:
free(tmp_rbuf);
*rbuf = NULL;
return (rc);
}
static ilb_status_t
i_ilb_walk_one_rule(ilb_handle_t h, rule_walkerfunc_t f, const char *name,
void *arg)
{
ilb_status_t rc = ILB_STATUS_OK;
ilb_rule_info_t *rl = NULL;
ilb_rule_data_t rd;
ilb_comm_t *ic, *rbuf;
size_t ic_sz, rbufsz;
if ((ic = i_ilb_alloc_req(ILBD_RETRIEVE_RULE, &ic_sz)) == NULL)
return (ILB_STATUS_ENOMEM);
rbufsz = sizeof (ilb_comm_t) + sizeof (ilb_rule_info_t);
if ((rbuf = malloc(rbufsz)) == NULL) {
free(ic);
return (ILB_STATUS_ENOMEM);
}
(void) strlcpy((char *)&ic->ic_data, name, sizeof (ilbd_name_t));
rc = i_ilb_do_comm(h, ic, ic_sz, rbuf, &rbufsz);
if (rc != ILB_STATUS_OK)
goto out;
if (rbuf->ic_cmd != ILBD_CMD_OK) {
rc = *(ilb_status_t *)&rbuf->ic_data;
goto out;
}
rl = (ilb_rule_info_t *)&rbuf->ic_data;
/*
* Since the IP address representation in ilb_rule_data_t and
* ilb_rule_info_t is different, we need to convert between
* them.
*/
(void) strlcpy(rd.r_name, rl->rl_name, sizeof (rd.r_name));
(void) strlcpy(rd.r_hcname, rl->rl_hcname, sizeof (rd.r_hcname));
(void) strlcpy(rd.r_sgname, rl->rl_sgname, sizeof (rd.r_sgname));
rd.r_flags = rl->rl_flags;
rd.r_proto = rl->rl_proto;
rd.r_minport = rl->rl_minport;
rd.r_maxport = rl->rl_maxport;
rd.r_algo = rl->rl_algo;
rd.r_topo = rl->rl_topo;
rd.r_conndrain = rl->rl_conndrain;
rd.r_nat_timeout = rl->rl_nat_timeout;
rd.r_sticky_timeout = rl->rl_sticky_timeout;
rd.r_hcport = rl->rl_hcport;
rd.r_hcpflag = rl->rl_hcpflag;
IP_COPY_IMPL_2_CLI(&rl->rl_vip, &rd.r_vip);
IP_COPY_IMPL_2_CLI(&rl->rl_nat_src_start, &rd.r_nat_src_start);
IP_COPY_IMPL_2_CLI(&rl->rl_nat_src_end, &rd.r_nat_src_end);
IP_COPY_IMPL_2_CLI(&rl->rl_stickymask, &rd.r_stickymask);
rc = f(h, &rd, arg);
out:
free(ic);
free(rbuf);
return (rc);
}
ilb_status_t
ilb_walk_rules(ilb_handle_t h, rule_walkerfunc_t f, const char *name,
void *arg)
{
ilb_status_t rc;
ilbd_namelist_t *names;
ilb_comm_t *rbuf;
size_t rbufsz;
int i;
if (h == NULL)
return (ILB_STATUS_EINVAL);
if (name != NULL)
return (i_ilb_walk_one_rule(h, f, name, arg));
rc = i_ilb_retrieve_rule_names(h, &rbuf, &rbufsz);
if (rc != ILB_STATUS_OK)
return (rc);
names = (ilbd_namelist_t *)&rbuf->ic_data;
for (i = 0; i < names->ilbl_count; i++) {
rc = i_ilb_walk_one_rule(h, f, names->ilbl_name[i], arg);
/*
* The rule may have been removed by another process since
* we retrieve all the rule names, just continue.
*/
if (rc == ILB_STATUS_ENOENT) {
rc = ILB_STATUS_OK;
continue;
}
if (rc != ILB_STATUS_OK)
break;
}
free(rbuf);
return (rc);
}