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config.c
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config.c
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/* $KAME: config.c,v 1.53 2005/09/16 11:30:14 suz Exp $ */
/*
* Copyright (C) 2002 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#ifdef __KAME__
#include <net/if_dl.h>
#endif
#ifdef __linux__
#include <linux/if_packet.h>
#endif
#include <syslog.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ifaddrs.h>
#include <errno.h>
#ifdef __linux__
#define __USE_XOPEN
#include <time.h>
#endif
#include "dhcp6.h"
#include "config.h"
#include "common.h"
#include "auth.h"
#include "base64.h"
#include "lease.h"
extern int errno;
struct prefix_ifconf *prefix_ifconflist;
struct dhcp6_list siplist, sipnamelist, dnslist, dnsnamelist, ntplist;
struct dhcp6_list nislist, nisnamelist;
struct dhcp6_list nisplist, nispnamelist;
struct dhcp6_list bcmcslist, bcmcsnamelist;
long long optrefreshtime;
static struct dhcp6_ifconf *dhcp6_ifconflist;
static struct ia_conflist ia_conflist0;
static struct host_conf *host_conflist0, *host_conflist;
static struct keyinfo *key_list, *key_list0;
static struct authinfo *auth_list, *auth_list0;
static struct dhcp6_list siplist0, sipnamelist0, dnslist0, dnsnamelist0, ntplist0;
static struct dhcp6_list nislist0, nisnamelist0;
static struct dhcp6_list nisplist0, nispnamelist0;
static struct dhcp6_list bcmcslist0, bcmcsnamelist0;
static long long optrefreshtime0 = -1;
#ifndef DHCP6_DYNAMIC_HOSTCONF_MAX
#define DHCP6_DYNAMIC_HOSTCONF_MAX 1024
#endif
struct dynamic_hostconf {
TAILQ_ENTRY(dynamic_hostconf) link;
struct host_conf *host;
};
static TAILQ_HEAD(dynamic_hostconf_listhead, dynamic_hostconf)
dynamic_hostconf_head;
static unsigned int dynamic_hostconf_count;
static struct pool_conf *pool_conflist, *pool_conflist0;
enum { DHCPOPTCODE_SEND, DHCPOPTCODE_REQUEST, DHCPOPTCODE_ALLOW };
/* temporary configuration structure for DHCP interface */
struct dhcp6_ifconf {
struct dhcp6_ifconf *next;
char *ifname;
/* configuration flags */
u_long send_flags;
u_long allow_flags;
int server_pref; /* server preference (server only) */
char *scriptpath; /* path to config script (client only) */
struct duid duid;
struct rawop_list rawops;
struct dhcp6_list reqopt_list;
struct ia_conflist iaconf_list;
struct authinfo *authinfo; /* authentication information
* (no need to clear) */
struct dhcp6_poolspec pool;
};
extern struct cf_list *cf_dns_list, *cf_dns_name_list, *cf_ntp_list;
extern struct cf_list *cf_sip_list, *cf_sip_name_list;
extern struct cf_list *cf_nis_list, *cf_nis_name_list;
extern struct cf_list *cf_nisp_list, *cf_nisp_name_list;
extern struct cf_list *cf_bcmcs_list, *cf_bcmcs_name_list;
extern long long cf_refreshtime;
extern char *configfilename;
static struct keyinfo *find_keybyname(struct keyinfo *, char *);
static int add_pd_pif(struct iapd_conf *, struct cf_list *);
static int add_options(int, struct dhcp6_ifconf *, struct cf_list *);
static int add_prefix(struct dhcp6_list *, const char *, int,
struct dhcp6_prefix *);
static void clear_pd_pif(struct iapd_conf *);
static void clear_ifconf(struct dhcp6_ifconf *);
static void clear_iaconf(struct ia_conflist *);
static void clear_hostconf(struct host_conf *);
static void clear_keys(struct keyinfo *);
static void clear_authinfo(struct authinfo *);
static int configure_duid(char *, struct duid *);
static int configure_addr(struct cf_list *, struct dhcp6_list *, const char *);
static int configure_domain(struct cf_list *, struct dhcp6_list *,
const char *);
static int get_default_ifid(struct prefix_ifconf *);
static void clear_poolconf(struct pool_conf *);
static struct pool_conf *create_pool(char *, struct dhcp6_range *);
struct host_conf *find_dynamic_hostconf(struct duid *);
static int in6_addr_cmp(struct in6_addr *, struct in6_addr *);
static void in6_addr_inc(struct in6_addr *);
/* a debug helper to complete someday if needed... or delete*/
void list_cfl (char *tag,struct cf_namelist *head)
{
struct cf_namelist *ifp;
printf("LIST CFL %s\n",tag);
for (ifp = head; ifp; ifp = ifp->next) {
printf("Do ifp->%s\n", ifp->name);
struct cf_list *cfl;
for (cfl = ifp->params; cfl; cfl = cfl->next) {
printf("Do cfltype->%i lineconf %i ptr=%p sublist=%p\n", cfl->type,cfl->line, cfl->ptr, cfl->list);
switch(cfl->type) {
case DECL_SEND:{
struct cf_list *cf0 = (void*)cfl->list;
for (; cf0; cf0 = cf0->next) {
//printf("SEND opt type %i\n",cf0->type);
switch (cf0->type) {
case DHCPOPT_RAW:{
struct rawoption *op = cf0->ptr;
printf("rawop %i datalen %i\n", op->opnum, op->datalen);
}
break;
default:;
}
}
}
break;
case DECL_SCRIPT:
printf("script %s\n", (char *)cfl->ptr);
break;
default:
printf("Unknown option type %i\n", cfl->type);
}
/*
case DHCPOPT_RAW:
case DHCPOPT_RAPID_COMMIT:
case DHCPOPT_AUTHINFO:
case DHCPOPT_IA_PD:
case DHCPOPT_IA_NA:
case DHCPOPT_SIP:
case DHCPOPT_SIPNAME:
case DHCPOPT_DNS:
case DHCPOPT_DNSNAME:
case DHCPOPT_NTP:
case DHCPOPT_NIS:
case DHCPOPT_NISNAME:
case DHCPOPT_NISP:
case DHCPOPT_NISPNAME:
case DHCPOPT_BCMCS:
case DHCPOPT_BCMCSNAME:
case DHCPOPT_REFRESHTIME:
printf("Known option type %i\n", cfl->type);
break;
default:
printf("Unknown option type %i\n", cfl->type);
*/
}
}
}
int
configure_interface(iflist)
struct cf_namelist *iflist;
{
struct cf_namelist *ifp;
struct dhcp6_ifconf *ifc;
char *cp;
for (ifp = iflist; ifp; ifp = ifp->next) {
struct cf_list *cfl;
if (if_nametoindex(ifp->name) == 0) {
d_printf(LOG_ERR, FNAME, "invalid interface(%s): %s",
ifp->name, strerror(errno));
goto bad;
}
if ((ifc = malloc(sizeof(*ifc))) == NULL) {
d_printf(LOG_ERR, FNAME,
"memory allocation for %s failed", ifp->name);
goto bad;
}
memset(ifc, 0, sizeof(*ifc));
ifc->next = dhcp6_ifconflist;
dhcp6_ifconflist = ifc;
if ((ifc->ifname = strdup(ifp->name)) == NULL) {
d_printf(LOG_ERR, FNAME, "failed to copy ifname");
goto bad;
}
ifc->server_pref = DH6OPT_PREF_UNDEF;
TAILQ_INIT(&ifc->reqopt_list);
TAILQ_INIT(&ifc->iaconf_list);
TAILQ_INIT(&ifc->rawops);
for (cfl = ifp->params; cfl; cfl = cfl->next) {
switch(cfl->type) {
case DECL_REQUEST:
if (dhcp6_mode != DHCP6_MODE_CLIENT) {
d_printf(LOG_INFO, FNAME, "%s:%d "
"client-only configuration",
configfilename,
cfl->line);
goto bad;
}
if (add_options(DHCPOPTCODE_REQUEST,
ifc, cfl->list)) {
goto bad;
}
break;
case DECL_SEND:
if (add_options(DHCPOPTCODE_SEND,
ifc, cfl->list)) {
goto bad;
}
break;
case DECL_ALLOW:
if (add_options(DHCPOPTCODE_ALLOW,
ifc, cfl->list)) {
goto bad;
}
break;
case DECL_DUID:
if ((configure_duid((char *)cfl->ptr,
&ifc->duid)) != 0) {
d_printf(LOG_ERR, FNAME, "%s:%d "
"failed to configure "
"DUID for %s",
configfilename, cfl->line,
ifc->ifname);
goto bad;
}
d_printf(LOG_DEBUG, FNAME,
"configure DUID for %s: %s",
ifc->ifname, duidstr(&ifc->duid));
break;
case DECL_INFO_ONLY:
if (dhcp6_mode != DHCP6_MODE_CLIENT) {
d_printf(LOG_INFO, FNAME, "%s:%d "
"client-only configuration",
configfilename, cfl->line);
goto bad;
}
ifc->send_flags |= DHCIFF_INFO_ONLY;
break;
case DECL_PREFERENCE:
if (dhcp6_mode != DHCP6_MODE_SERVER) {
d_printf(LOG_INFO, FNAME, "%s:%d "
"server-only configuration",
configfilename, cfl->line);
goto bad;
}
ifc->server_pref = (int)cfl->num;
if (ifc->server_pref < 0 ||
ifc->server_pref > 255) {
d_printf(LOG_INFO, FNAME, "%s:%d "
"bad value: %d",
configfilename, cfl->line,
ifc->server_pref);
goto bad;
}
break;
case DECL_SCRIPT:
if (dhcp6_mode != DHCP6_MODE_CLIENT) {
d_printf(LOG_INFO, FNAME, "%s:%d "
"client-only configuration",
configfilename, cfl->line);
goto bad;
}
if (ifc->scriptpath) {
d_printf(LOG_INFO, FNAME,
"%s:%d duplicated configuration",
configfilename, cfl->line);
goto bad;
}
cp = cfl->ptr;
ifc->scriptpath = strdup(cp + 1);
if (ifc->scriptpath == NULL) {
d_printf(LOG_NOTICE, FNAME,
"failed to copy script path");
goto bad;
}
cp = ifc->scriptpath;
if (*cp != '/') {
d_printf(LOG_INFO, FNAME,
"script must be an absolute path");
goto bad;
}
cp += strlen(ifc->scriptpath) - 1;
*cp = '\0'; /* clear the terminating quote */
break;
case DECL_ADDRESSPOOL:
{
struct dhcp6_poolspec* spec;
struct pool_conf* pool;
spec = (struct dhcp6_poolspec *)cfl->ptr;
for (pool = pool_conflist0; pool; pool = pool->next)
if (strcmp(spec->name, pool->name) == 0)
break;
if (pool == NULL) {
d_printf(LOG_ERR, FNAME, "%s:%d "
"pool '%s' not found",
configfilename, cfl->line,
spec->name);
goto bad;
}
if (spec->vltime != DHCP6_DURATION_INFINITE &&
(spec->pltime == DHCP6_DURATION_INFINITE ||
spec->pltime > spec->vltime)) {
d_printf(LOG_ERR, FNAME, "%s:%d ",
configfilename, cfl->line,
"specified a larger preferred lifetime "
"than valid lifetime");
goto bad;
}
ifc->pool = *spec;
if ((ifc->pool.name = strdup(spec->name)) == NULL) {
d_printf(LOG_ERR, FNAME,
"memory allocation failed");
goto bad;
}
d_printf(LOG_DEBUG, FNAME,
"pool '%s' is specified to the interface '%s'",
ifc->pool.name, ifc->ifname);
}
break;
default:
d_printf(LOG_ERR, FNAME, "%s:%d "
"invalid interface configuration",
configfilename, cfl->line);
goto bad;
}
}
if (use_all_config_if) {
if (ifinit(ifp->name) == NULL) {
d_printf(LOG_ERR, FNAME, "failed to initialize %s", ifp->name);
/* safe to exit here as still parsing */
exit(1);
}
}
}
return (0);
bad:
clear_ifconf(dhcp6_ifconflist);
dhcp6_ifconflist = NULL;
return (-1);
}
int
configure_ia(ialist, iatype)
struct cf_namelist *ialist;
iatype_t iatype;
{
struct cf_namelist *iap;
struct ia_conf *iac = NULL;
size_t confsize;
static int init = 1;
if (init) {
TAILQ_INIT(&ia_conflist0);
init = 0;
}
switch(iatype) {
case IATYPE_PD:
confsize = sizeof(struct iapd_conf);
break;
case IATYPE_NA:
confsize = sizeof(struct iana_conf);
break;
default:
d_printf(LOG_ERR, FNAME, "internal error");
goto bad;
}
for (iap = ialist; iap; iap = iap->next) {
struct cf_list *cfl;
if ((iac = malloc(confsize)) == NULL) {
d_printf(LOG_ERR, FNAME,
"memory allocation for IA %s failed",
iap->name);
goto bad;
}
memset(iac, 0, confsize);
/* common initialization */
iac->type = iatype;
iac->iaid = (uint32_t)atoi(iap->name);
TAILQ_INIT(&iac->iadata);
TAILQ_INSERT_TAIL(&ia_conflist0, iac, link);
/* IA-type specific initialization */
switch(iatype) {
case IATYPE_PD:
TAILQ_INIT(&((struct iapd_conf *)iac)->iapd_prefix_list);
TAILQ_INIT(&((struct iapd_conf *)iac)->iapd_pif_list);
break;
case IATYPE_NA:
TAILQ_INIT(&((struct iana_conf *)iac)->iana_address_list);
break;
}
/* set up parameters for the IA */
for (cfl = iap->params; cfl; cfl = cfl->next) {
struct iapd_conf *pdp = (struct iapd_conf *) iac;
struct iana_conf *nap = (struct iana_conf *) iac;
switch (iatype) {
case IATYPE_PD:
switch(cfl->type) {
case IACONF_PIF:
if (add_pd_pif(pdp, cfl))
goto bad;
break;
case IACONF_PREFIX:
if (add_prefix(&pdp->iapd_prefix_list,
"IAPD", DHCP6_LISTVAL_PREFIX6,
cfl->ptr)) {
d_printf(LOG_NOTICE, FNAME, "failed "
"to configure prefix");
goto bad;
}
break;
default:
d_printf(LOG_ERR, FNAME, "%s:%d "
"invalid configuration",
configfilename, cfl->line);
goto bad;
}
break;
case IATYPE_NA:
switch(cfl->type) {
case IACONF_ADDR:
if (add_prefix(&nap->iana_address_list,
"IANA", DHCP6_LISTVAL_STATEFULADDR6,
cfl->ptr)) {
d_printf(LOG_NOTICE, FNAME, "failed "
"to configure address");
goto bad;
}
break;
default:
d_printf(LOG_ERR, FNAME, "%s:%d "
"invalid configuration",
configfilename, cfl->line);
goto bad;
}
break;
default:
d_printf(LOG_ERR, FNAME, "%s:%d "
"invalid iatype %d",
configfilename, cfl->line, iatype);
goto bad;
}
}
}
return (0);
bad:
return (-1);
}
static int
add_pd_pif(iapdc, cfl0)
struct iapd_conf *iapdc;
struct cf_list *cfl0;
{
struct cf_list *cfl;
struct prefix_ifconf *pif;
/* duplication check */
for (pif = TAILQ_FIRST(&iapdc->iapd_pif_list); pif;
pif = TAILQ_NEXT(pif, link)) {
if (strcmp(pif->ifname, cfl0->ptr) == 0) {
d_printf(LOG_NOTICE, FNAME, "%s:%d "
"duplicated prefix interface: %s",
configfilename, cfl0->line, cfl0->ptr);
return (0); /* ignore it */
}
}
if ((pif = malloc(sizeof(*pif))) == NULL) {
d_printf(LOG_ERR, FNAME,
"memory allocation for %s failed", cfl0->ptr);
goto bad;
}
memset(pif, 0, sizeof(*pif));
/* validate and copy ifname */
if (if_nametoindex(cfl0->ptr) == 0) {
d_printf(LOG_ERR, FNAME, "%s:%d invalid interface (%s): %s",
configfilename, cfl0->line,
cfl0->ptr, strerror(errno));
goto bad;
}
if ((pif->ifname = strdup(cfl0->ptr)) == NULL) {
d_printf(LOG_ERR, FNAME, "failed to copy ifname");
goto bad;
}
pif->ifid_len = IFID_LEN_DEFAULT;
pif->sla_len = SLA_LEN_DEFAULT;
if (get_default_ifid(pif)) {
d_printf(LOG_NOTICE, FNAME,
"failed to get default IF ID for %s", pif->ifname);
goto bad;
}
for (cfl = cfl0->list; cfl; cfl = cfl->next) {
switch(cfl->type) {
case IFPARAM_SLA_ID:
pif->sla_id = (uint32_t)cfl->num;
break;
case IFPARAM_SLA_LEN:
pif->sla_len = (int)cfl->num;
if (pif->sla_len < 0 || pif->sla_len > 128) {
d_printf(LOG_ERR, FNAME, "%s:%d "
"invalid SLA length: %d",
configfilename, cfl->line, pif->sla_len);
goto bad;
}
break;
default:
d_printf(LOG_ERR, FNAME, "%s:%d internal error: "
"invalid configuration",
configfilename, cfl->line);
goto bad;
}
}
TAILQ_INSERT_TAIL(&iapdc->iapd_pif_list, pif, link);
return (0);
bad:
if (pif->ifname)
free(pif->ifname);
free(pif);
return (-1);
}
int
configure_host(hostlist)
struct cf_namelist *hostlist;
{
struct cf_namelist *host;
struct host_conf *hconf;
for (host = hostlist; host; host = host->next) {
struct cf_list *cfl;
if ((hconf = malloc(sizeof(*hconf))) == NULL) {
d_printf(LOG_ERR, FNAME, "memory allocation failed "
"for host %s", host->name);
goto bad;
}
memset(hconf, 0, sizeof(*hconf));
TAILQ_INIT(&hconf->prefix_list);
TAILQ_INIT(&hconf->addr_list);
hconf->next = host_conflist0;
host_conflist0 = hconf;
if ((hconf->name = strdup(host->name)) == NULL) {
d_printf(LOG_ERR, FNAME, "failed to copy host name: %s",
host->name);
goto bad;
}
for (cfl = host->params; cfl; cfl = cfl->next) {
switch(cfl->type) {
case DECL_DUID:
if (hconf->duid.duid_id) {
d_printf(LOG_ERR, FNAME, "%s:%d "
"duplicated DUID for %s",
configfilename,
cfl->line, host->name);
goto bad;
}
if ((configure_duid((char *)cfl->ptr,
&hconf->duid)) != 0) {
d_printf(LOG_ERR, FNAME, "%s:%d "
"failed to configure "
"DUID for %s",
configfilename, cfl->line,
host->name);
goto bad;
}
d_printf(LOG_DEBUG, FNAME,
"configure DUID for %s: %s",
host->name, duidstr(&hconf->duid));
break;
case DECL_PREFIX:
if (add_prefix(&hconf->prefix_list,
hconf->name, DHCP6_LISTVAL_PREFIX6,
cfl->ptr)) {
d_printf(LOG_ERR, FNAME, "failed "
"to configure prefix for %s",
host->name);
goto bad;
}
break;
case DECL_ADDRESS:
if (add_prefix(&hconf->addr_list,
hconf->name, DHCP6_LISTVAL_STATEFULADDR6,
cfl->ptr)) {
d_printf(LOG_ERR, FNAME, "failed "
"to configure address for %s",
host->name);
goto bad;
}
break;
case DECL_DELAYEDKEY:
if (hconf->delayedkey != NULL) {
d_printf(LOG_WARNING, FNAME,
"%s:%d: duplicate key %s for %s"
" (ignored)", configfilename,
cfl->line, cfl->ptr, host->name);
continue;
}
if ((hconf->delayedkey =
find_keybyname(key_list0, cfl->ptr))
== NULL) {
d_printf(LOG_ERR, FNAME, "failed to "
"find key information for %s",
cfl->ptr);
goto bad;
}
d_printf(LOG_DEBUG, FNAME, "configure key for "
"delayed auth with %s (keyid=%08x)",
host->name, hconf->delayedkey->keyid);
break;
case DECL_ADDRESSPOOL:
{
struct dhcp6_poolspec* spec;
struct pool_conf *pool;
spec = (struct dhcp6_poolspec *)cfl->ptr;
for (pool = pool_conflist0; pool; pool = pool->next)
if (strcmp(spec->name, pool->name) == 0)
break;
if (pool == NULL) {
d_printf(LOG_ERR, FNAME, "%s:%d "
"pool '%s' not found",
configfilename, cfl->line,
spec->name);
goto bad;
}
if (spec->vltime != DHCP6_DURATION_INFINITE &&
(spec->pltime == DHCP6_DURATION_INFINITE ||
spec->pltime > spec->vltime)) {
d_printf(LOG_ERR, FNAME, "%s:%d ",
configfilename, cfl->line,
"specified a larger preferred lifetime "
"than valid lifetime");
goto bad;
}
hconf->pool = *spec;
if ((hconf->pool.name = strdup(spec->name)) == NULL) {
d_printf(LOG_ERR, FNAME,
"memory allocation failed");
goto bad;
}
d_printf(LOG_DEBUG, FNAME,
"pool '%s' is specified to the host '%s'",
hconf->pool.name, hconf->name);
}
break;
default:
d_printf(LOG_ERR, FNAME, "%s:%d "
"invalid host configuration for %s",
configfilename, cfl->line,
host->name);
goto bad;
}
}
}
return (0);
bad:
/* there is currently nothing special to recover the error */
return (-1);
}
int
configure_keys(keylist)
struct cf_namelist *keylist;
{
struct cf_namelist *key;
char *secretstr;
char secret[1024];
int secretlen;
struct keyinfo *kinfo;
long long keyid;
char *expire = NULL;
for (key = keylist; key; key = key->next) {
struct cf_list *cfl;
if ((kinfo = malloc(sizeof(*kinfo))) == NULL) {
d_printf(LOG_ERR, FNAME, "memory allocation failed "
"for key %s", key->name);
goto bad;
}
memset(kinfo, 0, sizeof(*kinfo));
kinfo->next = key_list0;
key_list0 = kinfo;
if ((kinfo->name = strdup(key->name)) == NULL) {
d_printf(LOG_ERR, FNAME, "failed to copy key name: %s",
key->name);
goto bad;
}
keyid = -1;
expire = NULL;
for (cfl = key->params; cfl; cfl = cfl->next) {
switch (cfl->type) {
case KEYPARAM_REALM:
if (kinfo->realm != NULL) {
d_printf(LOG_WARNING, FNAME,
"%s:%d duplicate realm for key %s "
"(ignored)", configfilename,
cfl->line, key->name);
continue;
}
kinfo->realm = qstrdup(cfl->ptr);
if (kinfo->realm == NULL) {
d_printf(LOG_WARNING, FNAME,
"failed to allocate memory for "
"realm");
goto bad;
}
kinfo->realmlen = strlen(kinfo->realm);
break;
case KEYPARAM_KEYID:
if (keyid != -1) {
d_printf(LOG_WARNING, FNAME,
"%s:%d duplicate realm for key %s "
"(ignored)",
configfilename, cfl->line);
continue;
}
keyid = cfl->num;
if (keyid < 0 || keyid > 0xffffffff) {
d_printf(LOG_WARNING, FNAME,
"%s:%d key ID overflow",
configfilename, cfl->line);
goto bad;
}
break;
case KEYPARAM_SECRET:
/* duplicate check */
if (kinfo->secret != NULL) {
d_printf(LOG_WARNING, FNAME,
"%s:%d duplicate secret "
"for key %s (ignored)",
configfilename, cfl->line,
key->name);
continue; /* ignored */
}
/* convert base64 string to binary secret */
if ((secretstr = qstrdup(cfl->ptr)) == NULL) {
d_printf(LOG_WARNING, FNAME,
"failed to make a copy of secret");
goto bad;
}
memset(secret, 0, sizeof(secret));
secretlen = base64_decodestring(secretstr,
secret, sizeof(secret));
if (secretlen < 0) {
d_printf(LOG_ERR, FNAME,
"%s:%d failed to parse base64 key",
configfilename, cfl->line);
free(secretstr);
goto bad;
}
free(secretstr);
/* set the binary secret */
kinfo->secret = malloc(secretlen);
if (kinfo->secret == NULL) {
d_printf(LOG_WARNING, FNAME,
"failed to allocate memory "
"for secret");
goto bad;
}
memcpy(kinfo->secret, secret, secretlen);
kinfo->secretlen = secretlen;
break;
case KEYPARAM_EXPIRE:
if (expire != NULL) {
d_printf(LOG_WARNING, FNAME,
"%s:%d duplicate expire for key "
"%s (ignored)", configfilename,
cfl->line, key->name);
continue;
}
expire = qstrdup(cfl->ptr);
break;
default:
d_printf(LOG_ERR, FNAME,
"%s:%d invalid key parameter for %s",
configfilename, cfl->line, key->name);
goto bad;
}
}
/* check for mandatory parameters or use default */
if (kinfo->realm == NULL) {
d_printf(LOG_ERR, FNAME,
"realm not specified for key %s", key->name);
goto bad;
}
if (keyid == -1) {
d_printf(LOG_ERR, FNAME,
"key ID not specified for key %s", key->name);
goto bad;
}
kinfo->keyid = keyid;
if (kinfo->secret == NULL) {
d_printf(LOG_ERR, FNAME,
"secret not specified for key %s", key->name);
goto bad;
}
kinfo->expire = 0;
if (expire != NULL) {
if (strcmp(expire, "forever") != 0) {
time_t now, expire_time;
struct tm *lt;
if (time(&now) == -1) {
d_printf(LOG_ERR, FNAME, "cannot get "
"current time: %s",
strerror(errno));
goto bad;
}
lt = localtime(&now);
lt->tm_sec = 0;
if (strptime(expire, "%Y-%m-%d %H:%M", lt)
== NULL &&
strptime(expire, "%m-%d %H:%M", lt)
== NULL &&
strptime(expire, "%H:%M", lt) == NULL) {
d_printf(LOG_ERR, FNAME, "invalid "
"expiration time: %s");
goto bad;
}
expire_time = mktime(lt);
if (expire_time < now) {
d_printf(LOG_ERR, FNAME, "past "
"expiration time specified: %s",
expire);
goto bad;
}
kinfo->expire = expire_time;
}
}
}
return (0);
bad:
if (expire != NULL)
free(expire);
return (-1);
}
static struct keyinfo *
find_keybyname(head, kname)
struct keyinfo *head;
char *kname;
{
struct keyinfo *kinfo;
for (kinfo = head; kinfo != NULL; kinfo = kinfo->next) {
if (strcmp(kname, kinfo->name) == 0)
return (kinfo);
}
return (NULL);
}
int
configure_authinfo(authlist)
struct cf_namelist *authlist;
{
struct cf_namelist *auth;
struct authinfo *ainfo;
for (auth = authlist; auth; auth = auth->next) {
struct cf_list *cfl;
if ((ainfo = malloc(sizeof(*ainfo))) == NULL) {
d_printf(LOG_ERR, FNAME, "memory allocation failed "
"for auth info %s", auth->name);
goto bad;
}
memset(ainfo, 0, sizeof(*ainfo));
ainfo->next = auth_list0;
auth_list0 = ainfo;
ainfo->protocol = DHCP6_AUTHPROTO_UNDEF;
ainfo->algorithm = DHCP6_AUTHALG_UNDEF;
ainfo->rdm = DHCP6_AUTHRDM_UNDEF;
if ((ainfo->name = strdup(auth->name)) == NULL) {
d_printf(LOG_ERR, FNAME,
"failed to copy auth info name: %s", auth->name);
goto bad;
}
for (cfl = auth->params; cfl; cfl = cfl->next) {
switch (cfl->type) {
case AUTHPARAM_PROTO:
if (ainfo->protocol != DHCP6_AUTHPROTO_UNDEF) {
d_printf(LOG_WARNING, FNAME,
"%s:%d duplicate protocol "
"for auth info %s "
"(ignored)",
configfilename, cfl->line,
auth->name);
continue; /* ignored */
}
ainfo->protocol = (int)cfl->num;
break;
case AUTHPARAM_ALG:
if (ainfo->algorithm != DHCP6_AUTHALG_UNDEF) {
d_printf(LOG_WARNING, FNAME,
"%s:%d duplicate algorithm "
"for auth info %s "
"(ignored)",
configfilename, cfl->line,
auth->name);
continue; /* ignored */
}
ainfo->algorithm = (int)cfl->num;
break;