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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.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <alloca.h>
#include <limits.h>
#include <fm/topo_mod.h>
#include <sys/param.h>
#include <sys/systeminfo.h>
#include <sys/fm/protocol.h>
#include <sys/stat.h>
#include <topo_method.h>
#include <topo_subr.h>
#include <legacy_hc.h>
static int legacy_hc_enum(topo_mod_t *, tnode_t *, const char *,
topo_instance_t, topo_instance_t, void *, void *);
static void legacy_hc_release(topo_mod_t *, tnode_t *);
static int legacy_hc_fmri_nvl2str(topo_mod_t *, tnode_t *, topo_version_t,
nvlist_t *, nvlist_t **);
const topo_method_t legacy_hc_methods[] = {
{ TOPO_METH_NVL2STR, TOPO_METH_NVL2STR_DESC, TOPO_METH_NVL2STR_VERSION,
TOPO_STABILITY_INTERNAL, legacy_hc_fmri_nvl2str },
{ NULL }
};
static const topo_modops_t legacy_hc_ops =
{ legacy_hc_enum, legacy_hc_release };
static const topo_modinfo_t legacy_hc_info =
{ LEGACY_HC, FM_FMRI_SCHEME_LEGACY, LEGACY_HC_VERSION, &legacy_hc_ops };
int
legacy_hc_init(topo_mod_t *mod, topo_version_t version)
{
/*
* Turn on module debugging output
*/
if (getenv("TOPOLEGACY_HCDEBUG"))
topo_mod_setdebug(mod);
topo_mod_dprintf(mod, "initializing legacy_hc builtin\n");
if (version != LEGACY_HC_VERSION)
return (topo_mod_seterrno(mod, EMOD_VER_NEW));
if (topo_mod_register(mod, &legacy_hc_info, TOPO_VERSION) != 0) {
topo_mod_dprintf(mod, "failed to register legacy_hc: "
"%s\n", topo_mod_errmsg(mod));
return (-1); /* mod errno already set */
}
return (0);
}
void
legacy_hc_fini(topo_mod_t *mod)
{
topo_mod_unregister(mod);
}
/*ARGSUSED*/
int
legacy_hc_enum(topo_mod_t *mod, tnode_t *pnode, const char *name,
topo_instance_t min, topo_instance_t max, void *notused1, void *notused2)
{
(void) topo_method_register(mod, pnode, legacy_hc_methods);
return (0);
}
/*ARGSUSED*/
static void
legacy_hc_release(topo_mod_t *mp, tnode_t *node)
{
topo_method_unregister_all(mp, node);
}
/*
* Convert an input string to a URI escaped string and return the new string.
* RFC2396 Section 2.4 says that data must be escaped if it does not have a
* representation using an unreserved character, where an unreserved character
* is one that is either alphanumeric or one of the marks defined in S2.3.
*/
static size_t
mem_fmri_uriescape(const char *s, const char *xmark, char *buf, size_t len)
{
static const char rfc2396_mark[] = "-_.!~*'()";
static const char hex_digits[] = "0123456789ABCDEF";
static const char empty_str[] = "";
const char *p;
char c, *q;
size_t n = 0;
if (s == NULL)
s = empty_str;
if (xmark == NULL)
xmark = empty_str;
for (p = s; (c = *p) != '\0'; p++) {
if (isalnum(c) || strchr(rfc2396_mark, c) || strchr(xmark, c))
n++; /* represent c as itself */
else
n += 3; /* represent c as escape */
}
if (buf == NULL)
return (n);
for (p = s, q = buf; (c = *p) != '\0' && q < buf + len; p++) {
if (isalnum(c) || strchr(rfc2396_mark, c) || strchr(xmark, c)) {
*q++ = c;
} else {
*q++ = '%';
*q++ = hex_digits[((uchar_t)c & 0xf0) >> 4];
*q++ = hex_digits[(uchar_t)c & 0xf];
}
}
if (q == buf + len)
q--; /* len is too small: truncate output string */
*q = '\0';
return (n);
}
static ssize_t
fmri_nvl2str(topo_mod_t *mod, nvlist_t *nvl, char *buf, size_t buflen)
{
uint8_t version;
ssize_t size;
char *c;
char *escc;
int i;
if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
version > FM_LEGACY_SCHEME_VERSION ||
nvlist_lookup_string(nvl, FM_FMRI_LEGACY_HC, &c) != 0)
return (0);
i = mem_fmri_uriescape(c, ":,/", NULL, 0);
escc = topo_mod_alloc(mod, i + 1);
(void) mem_fmri_uriescape(c, ":,/", escc, i + 1);
size = snprintf(buf, buflen, "legacy-hc:///component=%s", escc);
topo_mod_free(mod, escc, i + 1);
return (size);
}
/*ARGSUSED*/
static int
legacy_hc_fmri_nvl2str(topo_mod_t *mod, tnode_t *node, topo_version_t version,
nvlist_t *nvl, nvlist_t **out)
{
ssize_t len;
char *name = NULL;
nvlist_t *fmristr;
if (version > TOPO_METH_NVL2STR_VERSION)
return (topo_mod_seterrno(mod, EMOD_VER_NEW));
if ((len = fmri_nvl2str(mod, nvl, NULL, 0)) == 0 ||
(name = topo_mod_alloc(mod, len + 1)) == NULL ||
fmri_nvl2str(mod, nvl, name, len + 1) == 0) {
if (name != NULL)
topo_mod_free(mod, name, len + 1);
return (topo_mod_seterrno(mod, EMOD_FMRI_NVL));
}
if (topo_mod_nvalloc(mod, &fmristr, NV_UNIQUE_NAME) != 0) {
topo_mod_free(mod, name, len + 1);
return (topo_mod_seterrno(mod, EMOD_FMRI_NVL));
}
if (nvlist_add_string(fmristr, "fmri-string", name) != 0) {
topo_mod_free(mod, name, len + 1);
nvlist_free(fmristr);
return (topo_mod_seterrno(mod, EMOD_FMRI_NVL));
}
topo_mod_free(mod, name, len + 1);
*out = fmristr;
return (0);
}
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