OpenSolaris_b135/lib/libsldap/common/ns_common.c
/*
* 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 <stdio.h>
#include <sys/types.h>
#include <stdlib.h>
#include <libintl.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <syslog.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <netdir.h>
#include <lber.h>
#include <ldap.h>
#include "ns_sldap.h"
#include "ns_internal.h"
#include "ns_cache_door.h"
#define UDP "/dev/udp"
#define MAXIFS 32
struct ifinfo {
struct in_addr addr, netmask;
};
static ns_service_map ns_def_map[] = {
{ "passwd", "ou=people,", NULL },
{ "shadow", "ou=people,", "passwd" },
{ "user_attr", "ou=people,", "passwd" },
{ "audit_user", "ou=people,", "passwd" },
{ "group", "ou=group,", NULL },
{ "rpc", "ou=rpc,", NULL },
{ "project", "ou=projects,", NULL },
{ "protocols", "ou=protocols,", NULL },
{ "networks", "ou=networks,", NULL },
{ "netmasks", "ou=networks,", "networks" },
{ "netgroup", "ou=netgroup,", NULL },
{ "aliases", "ou=aliases,", NULL },
{ "Hosts", "ou=Hosts,", NULL },
{ "ipnodes", "ou=Hosts,", "hosts" },
{ "Services", "ou=Services,", NULL },
{ "bootparams", "ou=ethers,", "ethers" },
{ "ethers", "ou=ethers,", NULL },
{ "auth_attr", "ou=SolarisAuthAttr,", NULL },
{ "prof_attr", "ou=SolarisProfAttr,", NULL },
{ "exec_attr", "ou=SolarisProfAttr,", "prof_attr" },
{ "profile", "ou=profile,", NULL },
{ "printers", "ou=printers,", NULL },
{ "automount", "", NULL },
{ "tnrhtp", "ou=ipTnet,", NULL },
{ "tnrhdb", "ou=ipTnet,", "tnrhtp" },
{ NULL, NULL, NULL }
};
static char ** parseDN(const char *val, const char *service);
static char ** sortServerNet(char **srvlist);
static char ** sortServerPref(char **srvlist, char **preflist,
boolean_t flag, int version, int *error);
/*
* FUNCTION: s_api_printResult
* Given a ns_ldap_result structure print it.
*/
int
__s_api_printResult(ns_ldap_result_t *result)
{
ns_ldap_entry_t *curEntry;
int i, j, k = 0;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_printResult START\n");
#endif
(void) printf("--------------------------------------\n");
if (result == NULL) {
(void) printf("No result\n");
return (0);
}
(void) printf("entries_count %d\n", result->entries_count);
curEntry = result->entry;
for (i = 0; i < result->entries_count; i++) {
(void) printf("entry %d has attr_count = %d \n", i,
curEntry->attr_count);
for (j = 0; j < curEntry->attr_count; j++) {
(void) printf("entry %d has attr_pair[%d] = %s \n",
i, j, curEntry->attr_pair[j]->attrname);
for (k = 0; k < 20 &&
curEntry->attr_pair[j]->attrvalue[k]; k++)
(void) printf("entry %d has attr_pair[%d]->"
"attrvalue[%d] = %s \n", i, j, k,
curEntry->attr_pair[j]->attrvalue[k]);
}
(void) printf("\n--------------------------------------\n");
curEntry = curEntry->next;
}
return (1);
}
/*
* FUNCTION: __s_api_getSearchScope
*
* Retrieve the search scope for ldap search from the config module.
*
* RETURN VALUES: NS_LDAP_SUCCESS, NS_LDAP_CONFIG
* INPUT: NONE
* OUTPUT: searchScope, errorp
*/
int
__s_api_getSearchScope(
int *searchScope,
ns_ldap_error_t **errorp)
{
char errmsg[MAXERROR];
void **paramVal = NULL;
int rc = 0;
int scope = 0;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_getSearchScope START\n");
#endif
if (*searchScope == 0) {
if ((rc = __ns_ldap_getParam(NS_LDAP_SEARCH_SCOPE_P,
¶mVal, errorp)) != NS_LDAP_SUCCESS) {
return (rc);
}
if (paramVal && *paramVal)
scope = * (int *)(*paramVal);
else
scope = NS_LDAP_SCOPE_ONELEVEL;
(void) __ns_ldap_freeParam(¶mVal);
} else {
scope = *searchScope;
}
switch (scope) {
case NS_LDAP_SCOPE_ONELEVEL:
*searchScope = LDAP_SCOPE_ONELEVEL;
break;
case NS_LDAP_SCOPE_BASE:
*searchScope = LDAP_SCOPE_BASE;
break;
case NS_LDAP_SCOPE_SUBTREE:
*searchScope = LDAP_SCOPE_SUBTREE;
break;
default:
(void) snprintf(errmsg, sizeof (errmsg),
gettext("Invalid search scope!"));
MKERROR(LOG_ERR, *errorp, NS_CONFIG_FILE,
strdup(errmsg), NS_LDAP_CONFIG);
return (NS_LDAP_CONFIG);
}
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: __ns_ldap_dupAuth
*
* Duplicates an authentication structure.
*
* RETURN VALUES: copy of authp or NULL on error
* INPUT: authp
*/
ns_cred_t *
__ns_ldap_dupAuth(const ns_cred_t *authp)
{
ns_cred_t *ap;
#ifdef DEBUG
(void) fprintf(stderr, "__ns_ldap_dupAuth START\n");
#endif
if (authp == NULL)
return (NULL);
ap = (ns_cred_t *)calloc(1, sizeof (ns_cred_t));
if (ap == NULL)
return (NULL);
if (authp->hostcertpath) {
ap->hostcertpath = strdup(authp->hostcertpath);
if (ap->hostcertpath == NULL) {
free(ap);
return (NULL);
}
}
if (authp->cred.unix_cred.userID) {
ap->cred.unix_cred.userID =
strdup(authp->cred.unix_cred.userID);
if (ap->cred.unix_cred.userID == NULL) {
(void) __ns_ldap_freeCred(&ap);
return (NULL);
}
}
if (authp->cred.unix_cred.passwd) {
ap->cred.unix_cred.passwd =
strdup(authp->cred.unix_cred.passwd);
if (ap->cred.unix_cred.passwd == NULL) {
(void) __ns_ldap_freeCred(&ap);
return (NULL);
}
}
if (authp->cred.cert_cred.nickname) {
ap->cred.cert_cred.nickname =
strdup(authp->cred.cert_cred.nickname);
if (ap->cred.cert_cred.nickname == NULL) {
(void) __ns_ldap_freeCred(&ap);
return (NULL);
}
}
ap->auth.type = authp->auth.type;
ap->auth.tlstype = authp->auth.tlstype;
ap->auth.saslmech = authp->auth.saslmech;
ap->auth.saslopt = authp->auth.saslopt;
return (ap);
}
/*
* FUNCTION: __ns_ldap_freeUnixCred
*
* Frees all the memory associated with a UnixCred_t structure.
*
* RETURN VALUES: NS_LDAP_INVALID_PARAM, NS_LDAP_SUCCESS
* INPUT: UnixCred
*/
int
__ns_ldap_freeUnixCred(UnixCred_t ** credp)
{
UnixCred_t *ap;
#ifdef DEBUG
(void) fprintf(stderr, "__ns_ldap_freeUnixCred START\n");
#endif
if (credp == NULL || *credp == NULL)
return (NS_LDAP_INVALID_PARAM);
ap = *credp;
if (ap->userID) {
(void) memset(ap->userID, 0, strlen(ap->userID));
free(ap->userID);
}
if (ap->passwd) {
(void) memset(ap->passwd, 0, strlen(ap->passwd));
free(ap->passwd);
}
free(ap);
*credp = NULL;
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: __ns_ldap_freeCred
*
* Frees all the memory associated with a ns_cred_t structure.
*
* RETURN VALUES: NS_LDAP_INVALID_PARAM, NS_LDAP_SUCCESS
* INPUT: ns_cred_t
*/
int
__ns_ldap_freeCred(ns_cred_t ** credp)
{
ns_cred_t *ap;
#ifdef DEBUG
(void) fprintf(stderr, "__ns_ldap_freeCred START\n");
#endif
if (credp == NULL || *credp == NULL)
return (NS_LDAP_INVALID_PARAM);
ap = *credp;
if (ap->hostcertpath) {
(void) memset(ap->hostcertpath, 0,
strlen(ap->hostcertpath));
free(ap->hostcertpath);
}
if (ap->cred.unix_cred.userID) {
(void) memset(ap->cred.unix_cred.userID, 0,
strlen(ap->cred.unix_cred.userID));
free(ap->cred.unix_cred.userID);
}
if (ap->cred.unix_cred.passwd) {
(void) memset(ap->cred.unix_cred.passwd, 0,
strlen(ap->cred.unix_cred.passwd));
free(ap->cred.unix_cred.passwd);
}
if (ap->cred.cert_cred.nickname) {
(void) memset(ap->cred.cert_cred.nickname, 0,
strlen(ap->cred.cert_cred.nickname));
free(ap->cred.cert_cred.nickname);
}
free(ap);
*credp = NULL;
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: __s_api_is_auth_matched
*
* Compare an authentication structure.
*
* RETURN VALUES: B_TRUE if matched, B_FALSE otherwise.
* INPUT: auth1, auth2
*/
boolean_t
__s_api_is_auth_matched(const ns_cred_t *auth1,
const ns_cred_t *auth2)
{
if ((auth1->auth.type != auth2->auth.type) ||
(auth1->auth.tlstype != auth2->auth.tlstype) ||
(auth1->auth.saslmech != auth2->auth.saslmech) ||
(auth1->auth.saslopt != auth2->auth.saslopt))
return (B_FALSE);
if ((((auth1->auth.type == NS_LDAP_AUTH_SASL) &&
((auth1->auth.saslmech == NS_LDAP_SASL_CRAM_MD5) ||
(auth1->auth.saslmech == NS_LDAP_SASL_DIGEST_MD5))) ||
(auth1->auth.type == NS_LDAP_AUTH_SIMPLE)) &&
((auth1->cred.unix_cred.userID == NULL) ||
(auth1->cred.unix_cred.passwd == NULL) ||
((strcasecmp(auth1->cred.unix_cred.userID,
auth2->cred.unix_cred.userID) != 0)) ||
((strcmp(auth1->cred.unix_cred.passwd,
auth2->cred.unix_cred.passwd) != 0))))
return (B_FALSE);
return (B_TRUE);
}
/*
* FUNCTION: __s_api_getDNs
*
* Retrieves the default base dn for the given
* service.
*
* RETURN VALUES: NS_LDAP_SUCCESS, NS_LDAP_MEMORY, NS_LDAP_CONFIG
* INPUT: service
* OUTPUT: DN, error
*/
typedef int (*pf)(const char *, char **, ns_ldap_error_t **);
int
__s_api_getDNs(
char *** DN,
const char *service,
ns_ldap_error_t ** error)
{
void **paramVal = NULL;
char **dns = NULL;
int rc = 0;
int i, len;
pf prepend_auto2dn = __s_api_prepend_automountmapname_to_dn;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_getDNs START\n");
#endif
if ((rc = __ns_ldap_getParam(NS_LDAP_SEARCH_BASEDN_P,
¶mVal, error)) != NS_LDAP_SUCCESS) {
return (rc);
}
if (!paramVal) {
char errmsg[MAXERROR];
(void) snprintf(errmsg, sizeof (errmsg),
gettext("BaseDN not defined"));
MKERROR(LOG_ERR, *error, NS_CONFIG_FILE, strdup(errmsg),
NS_LDAP_CONFIG);
return (NS_LDAP_CONFIG);
}
dns = (char **)calloc(2, sizeof (char *));
if (dns == NULL) {
(void) __ns_ldap_freeParam(¶mVal);
return (NS_LDAP_MEMORY);
}
if (service == NULL) {
dns[0] = strdup((char *)*paramVal);
if (dns[0] == NULL) {
(void) __ns_ldap_freeParam(¶mVal);
free(dns);
return (NS_LDAP_MEMORY);
}
} else {
for (i = 0; ns_def_map[i].service != NULL; i++) {
if (strcasecmp(service,
ns_def_map[i].service) == 0) {
len = strlen((char *)*paramVal) +
strlen(ns_def_map[i].rdn) + 1;
dns[0] = (char *)
calloc(len, sizeof (char));
if (dns[0] == NULL) {
(void) __ns_ldap_freeParam(
¶mVal);
free(dns);
return (NS_LDAP_MEMORY);
}
(void) strcpy(dns[0],
ns_def_map[i].rdn);
(void) strcat(dns[0],
(char *)*paramVal);
break;
}
}
if (ns_def_map[i].service == NULL) {
char *p = (char *)*paramVal;
char *buffer = NULL;
int buflen = 0;
if (strchr(service, '=') == NULL) {
/* automount entries */
if (strncasecmp(service, "auto_", 5) == 0) {
buffer = strdup(p);
if (!buffer) {
free(dns);
(void) __ns_ldap_freeParam(
¶mVal);
return (NS_LDAP_MEMORY);
}
/* shorten name to avoid cstyle error */
rc = prepend_auto2dn(
service, &buffer, error);
if (rc != NS_LDAP_SUCCESS) {
free(dns);
free(buffer);
(void) __ns_ldap_freeParam(
¶mVal);
return (rc);
}
} else {
/* strlen("nisMapName")+"="+","+'\0' = 13 */
buflen = strlen(service) + strlen(p) +
13;
buffer = (char *)malloc(buflen);
if (buffer == NULL) {
free(dns);
(void) __ns_ldap_freeParam(
¶mVal);
return (NS_LDAP_MEMORY);
}
(void) snprintf(buffer, buflen,
"nisMapName=%s,%s", service, p);
}
} else {
buflen = strlen(service) + strlen(p) + 2;
buffer = (char *)malloc(buflen);
if (buffer == NULL) {
free(dns);
(void) __ns_ldap_freeParam(¶mVal);
return (NS_LDAP_MEMORY);
}
(void) snprintf(buffer, buflen,
"%s,%s", service, p);
}
dns[0] = buffer;
}
}
(void) __ns_ldap_freeParam(¶mVal);
*DN = dns;
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: __s_api_get_search_DNs_v1
*
* Retrieves the list of search DNS from the V1 profile for the given
* service.
*
* RETURN VALUES: NS_LDAP_SUCCESS, NS_LDAP_MEMORY, NS_LDAP_CONFIG
* INPUT: service
* OUTPUT: DN, error
*/
int
__s_api_get_search_DNs_v1(
char *** DN,
const char *service,
ns_ldap_error_t ** error)
{
void **paramVal = NULL;
void **temptr = NULL;
char **dns = NULL;
int rc = 0;
if ((rc = __ns_ldap_getParam(NS_LDAP_SEARCH_DN_P,
¶mVal, error)) != NS_LDAP_SUCCESS) {
return (rc);
}
if (service && paramVal) {
for (temptr = paramVal; *temptr != NULL; temptr++) {
dns = parseDN((const char *)(*temptr),
(const char *)service);
if (dns != NULL)
break;
}
}
(void) __ns_ldap_freeParam(¶mVal);
*DN = dns;
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: parseDN
*
* Parse a special formated list(val) into an array of char *.
*
* RETURN VALUE: A char * pointer to the new list of dns.
* INPUT: val, service
*/
static char **
parseDN(
const char *val,
const char *service)
{
size_t len = 0;
size_t slen = 0;
char **retVal = NULL;
const char *temptr;
char *temptr2;
const char *valend;
int valNo = 0;
int valSize = 0;
int i;
char *SSD_service = NULL;
#ifdef DEBUG
(void) fprintf(stderr, "parseDN START\n");
#endif
if (val == NULL || *val == '\0')
return (NULL);
if (service == NULL || *service == '\0')
return (NULL);
len = strlen(val);
slen = strlen(service);
if (strncasecmp(val, service, slen) != 0) {
/*
* This routine is only called
* to process V1 profile and
* for V1 profile, map service
* to the corresponding SSD_service
* which is associated with a
* real container in the LDAP directory
* tree, e.g., map "shadow" to
* "password". See function
* __s_api_get_SSD_from_SSDtoUse_service
* for similar service to SSD_service
* mapping handling for V2 profile.
*/
for (i = 0; ns_def_map[i].service != NULL; i++) {
if (ns_def_map[i].SSDtoUse_service &&
strcasecmp(service,
ns_def_map[i].service) == 0) {
SSD_service =
ns_def_map[i].SSDtoUse_service;
break;
}
}
if (SSD_service == NULL)
return (NULL);
slen = strlen(SSD_service);
if (strncasecmp(val, SSD_service, slen) != 0)
return (NULL);
}
temptr = val + slen;
while (*temptr == SPACETOK || *temptr == TABTOK)
temptr++;
if (*temptr != COLONTOK)
return (NULL);
while (*temptr) {
temptr2 = strchr(temptr, OPARATOK);
if (temptr2 == NULL)
break;
temptr2++;
temptr2 = strchr(temptr2, CPARATOK);
if (temptr2 == NULL)
break;
valNo++;
temptr = temptr2+1;
}
retVal = (char **)calloc(valNo +1, sizeof (char *));
if (retVal == NULL)
return (NULL);
temptr = val;
valend = val+len;
for (i = 0; (i < valNo) && (temptr < valend); i++) {
temptr = strchr(temptr, OPARATOK);
if (temptr == NULL) {
__s_api_free2dArray(retVal);
return (NULL);
}
temptr++;
temptr2 = strchr(temptr, CPARATOK);
if (temptr2 == NULL) {
__s_api_free2dArray(retVal);
return (NULL);
}
valSize = temptr2 - temptr;
retVal[i] = (char *)calloc(valSize + 1, sizeof (char));
if (retVal[i] == NULL) {
__s_api_free2dArray(retVal);
return (NULL);
}
(void) strncpy(retVal[i], temptr, valSize);
retVal[i][valSize] = '\0';
temptr = temptr2 + 1;
}
return (retVal);
}
/*
* __s_api_get_local_interfaces
*
* Returns a pointer to an array of addresses and netmasks of all interfaces
* configured on the system.
*
* NOTE: This function is very IPv4 centric.
*/
static struct ifinfo *
__s_api_get_local_interfaces()
{
struct ifconf ifc;
struct ifreq ifreq, *ifr;
struct ifinfo *localinfo;
struct in_addr netmask;
struct sockaddr_in *sin;
void *buf = NULL;
int fd = 0;
int numifs = 0;
int i, n = 0;
if ((fd = open(UDP, O_RDONLY)) < 0)
return ((struct ifinfo *)NULL);
if (ioctl(fd, SIOCGIFNUM, (char *)&numifs) < 0) {
numifs = MAXIFS;
}
buf = malloc(numifs * sizeof (struct ifreq));
if (buf == NULL) {
(void) close(fd);
return ((struct ifinfo *)NULL);
}
ifc.ifc_len = numifs * (int)sizeof (struct ifreq);
ifc.ifc_buf = buf;
if (ioctl(fd, SIOCGIFCONF, (char *)&ifc) < 0) {
(void) close(fd);
free(buf);
buf = NULL;
return ((struct ifinfo *)NULL);
}
ifr = (struct ifreq *)buf;
numifs = ifc.ifc_len/(int)sizeof (struct ifreq);
localinfo = (struct ifinfo *)malloc((numifs + 1) *
sizeof (struct ifinfo));
if (localinfo == NULL) {
(void) close(fd);
free(buf);
buf = NULL;
return ((struct ifinfo *)NULL);
}
for (i = 0, n = numifs; n > 0; n--, ifr++) {
uint_t ifrflags;
ifreq = *ifr;
if (ioctl(fd, SIOCGIFFLAGS, (char *)&ifreq) < 0)
continue;
ifrflags = ifreq.ifr_flags;
if (((ifrflags & IFF_UP) == 0) ||
(ifr->ifr_addr.sa_family != AF_INET))
continue;
if (ioctl(fd, SIOCGIFNETMASK, (char *)&ifreq) < 0)
continue;
netmask = ((struct sockaddr_in *)&ifreq.ifr_addr)->sin_addr;
if (ioctl(fd, SIOCGIFADDR, (char *)&ifreq) < 0)
continue;
sin = (struct sockaddr_in *)&ifreq.ifr_addr;
localinfo[i].addr = sin->sin_addr;
localinfo[i].netmask = netmask;
i++;
}
localinfo[i].addr.s_addr = 0;
free(buf);
buf = NULL;
(void) close(fd);
return (localinfo);
}
/*
* __s_api_samenet(char *, struct ifinfo *)
*
* Returns 1 if address is on the same subnet of the array of addresses
* passed in.
*
* NOTE: This function is only valid for IPv4 addresses.
*/
static int
__s_api_IPv4sameNet(char *addr, struct ifinfo *ifs)
{
int answer = 0;
if (addr && ifs) {
char *addr_raw;
unsigned long iaddr;
int i;
if ((addr_raw = strdup(addr)) != NULL) {
char *s;
/* Remove port number. */
if ((s = strchr(addr_raw, ':')) != NULL)
*s = '\0';
iaddr = inet_addr(addr_raw);
/* Loop through interface list to find match. */
for (i = 0; ifs[i].addr.s_addr != 0; i++) {
if ((iaddr & ifs[i].netmask.s_addr) ==
(ifs[i].addr.s_addr &
ifs[i].netmask.s_addr))
answer++;
}
free(addr_raw);
}
}
return (answer);
}
/*
* FUNCTION: __s_api_getServers
*
* Retrieve a list of ldap servers from the config module.
*
* RETURN VALUE: NS_LDAP_SUCCESS, NS_LDAP_CONFIG, NS_LDAP_MEMORY
* INPUT: NONE
* OUTPUT: servers, error
*/
int
__s_api_getServers(
char *** servers,
ns_ldap_error_t ** error)
{
void **paramVal = NULL;
char errmsg[MAXERROR];
char **sortServers = NULL;
char **netservers = NULL;
int rc = 0, err = NS_LDAP_CONFIG, version = 1;
const char *str, *str1;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_getServers START\n");
#endif
*servers = NULL;
/* get profile version number */
if ((rc = __ns_ldap_getParam(NS_LDAP_FILE_VERSION_P,
¶mVal, error)) != NS_LDAP_SUCCESS)
return (rc);
if (paramVal == NULL || *paramVal == NULL) {
(void) snprintf(errmsg, sizeof (errmsg),
gettext("No file version"));
MKERROR(LOG_INFO, *error, NS_CONFIG_FILE, strdup(errmsg),
NS_LDAP_CONFIG);
return (NS_LDAP_CONFIG);
}
if (strcasecmp((char *)*paramVal, NS_LDAP_VERSION_1) == 0)
version = 1;
else if (strcasecmp((char *)*paramVal, NS_LDAP_VERSION_2) == 0)
version = 2;
(void) __ns_ldap_freeParam(¶mVal);
paramVal = NULL;
if ((rc = __ns_ldap_getParam(NS_LDAP_SERVERS_P,
¶mVal, error)) != NS_LDAP_SUCCESS)
return (rc);
/*
* For version 2, default server list could be
* empty.
*/
if ((paramVal == NULL || (char *)*paramVal == NULL) &&
version == 1) {
str = NULL_OR_STR(__s_api_get_configname(NS_LDAP_SERVERS_P));
(void) snprintf(errmsg, sizeof (errmsg),
gettext("Unable to retrieve the '%s' list"), str);
MKERROR(LOG_WARNING, *error, NS_CONFIG_FILE, strdup(errmsg),
NS_LDAP_CONFIG);
return (NS_LDAP_CONFIG);
}
/*
* Get server address(es) and go through them.
*/
*servers = (char **)paramVal;
paramVal = NULL;
/* Sort servers based on network. */
if (*servers) {
netservers = sortServerNet(*servers);
if (netservers) {
free(*servers);
*servers = netservers;
} else {
return (NS_LDAP_MEMORY);
}
}
/* Get preferred server list and sort servers based on that. */
if ((rc = __ns_ldap_getParam(NS_LDAP_SERVER_PREF_P,
¶mVal, error)) != NS_LDAP_SUCCESS) {
if (*servers)
__s_api_free2dArray(*servers);
*servers = NULL;
return (rc);
}
if (paramVal != NULL) {
char **prefServers;
void **val = NULL;
if ((rc = __ns_ldap_getParam(NS_LDAP_PREF_ONLY_P,
&val, error)) != NS_LDAP_SUCCESS) {
if (*servers)
__s_api_free2dArray(*servers);
*servers = NULL;
(void) __ns_ldap_freeParam(¶mVal);
return (rc);
}
prefServers = (char **)paramVal;
paramVal = NULL;
if (prefServers) {
if (val != NULL && (*val) != NULL &&
*(int *)val[0] == 1)
sortServers = sortServerPref(*servers,
prefServers, B_FALSE, version,
&err);
else
sortServers = sortServerPref(*servers,
prefServers, B_TRUE, version,
&err);
if (sortServers) {
if (*servers)
free(*servers);
*servers = NULL;
free(prefServers);
prefServers = NULL;
*servers = sortServers;
} else {
if (*servers)
__s_api_free2dArray(*servers);
*servers = NULL;
__s_api_free2dArray(prefServers);
prefServers = NULL;
}
}
(void) __ns_ldap_freeParam(&val);
}
(void) __ns_ldap_freeParam(¶mVal);
if (*servers == NULL) {
if (err == NS_LDAP_CONFIG) {
str = NULL_OR_STR(__s_api_get_configname(
NS_LDAP_SERVERS_P));
str1 = NULL_OR_STR(__s_api_get_configname(
NS_LDAP_SERVER_PREF_P));
(void) snprintf(errmsg, sizeof (errmsg),
gettext("Unable to generate a new server list "
"based on '%s' and/or '%s'"), str, str1);
MKERROR(LOG_WARNING, *error, NS_CONFIG_FILE,
strdup(errmsg), err);
return (err);
}
return (NS_LDAP_MEMORY);
}
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: sortServerNet
* Sort the serverlist based on the distance from client as long
* as the list only contains IPv4 addresses. Otherwise do nothing.
*/
static char **
sortServerNet(char **srvlist)
{
int count = 0;
int all = 0;
int ipv4only = 1;
struct ifinfo *ifs = __s_api_get_local_interfaces();
char **tsrvs;
char **psrvs, **retsrvs;
/* Sanity check. */
if (srvlist == NULL || srvlist[0] == NULL)
return (NULL);
/* Count the number of servers to sort. */
for (count = 0; srvlist[count] != NULL; count++) {
if (!__s_api_isipv4(srvlist[count]))
ipv4only = 0;
}
count++;
/* Make room for the returned list of servers. */
retsrvs = (char **)calloc(count, sizeof (char *));
if (retsrvs == NULL) {
free(ifs);
ifs = NULL;
return (NULL);
}
retsrvs[count - 1] = NULL;
/* Make a temporary list of servers. */
psrvs = (char **)calloc(count, sizeof (char *));
if (psrvs == NULL) {
free(ifs);
ifs = NULL;
free(retsrvs);
retsrvs = NULL;
return (NULL);
}
/* Filter servers on the same subnet */
tsrvs = srvlist;
while (*tsrvs) {
if (ipv4only && __s_api_IPv4sameNet(*tsrvs, ifs)) {
psrvs[all] = *tsrvs;
retsrvs[all++] = *(tsrvs);
}
tsrvs++;
}
/* Filter remaining servers. */
tsrvs = srvlist;
while (*tsrvs) {
char **ttsrvs = psrvs;
while (*ttsrvs) {
if (strcmp(*tsrvs, *ttsrvs) == 0)
break;
ttsrvs++;
}
if (*ttsrvs == NULL)
retsrvs[all++] = *(tsrvs);
tsrvs++;
}
free(ifs);
ifs = NULL;
free(psrvs);
psrvs = NULL;
return (retsrvs);
}
/*
* FUNCTION: sortServerPref
* Sort the serverlist based on the preferred server list.
*
* The sorting algorithm works as follows:
*
* If version 1, if flag is TRUE, find all the servers in both preflist
* and srvlist, then append other servers in srvlist to this list
* and return the list.
* If flag is FALSE, just return srvlist.
* srvlist can not be empty.
*
* If version 2, append all the servers in srvlist
* but not in preflist to preflist, and return the merged list.
* If srvlist is empty, just return preflist.
* If preflist is empty, just return srvlist.
*/
static char **
sortServerPref(char **srvlist, char **preflist,
boolean_t flag, int version, int *error)
{
int i, scount = 0, pcount = 0;
int all = 0, dup = 0;
char **tsrvs;
char **retsrvs;
char **dupsrvs;
/* Count the number of servers to sort. */
if (srvlist && srvlist[0])
for (i = 0; srvlist[i] != NULL; i++)
scount++;
/* Sanity check. */
if (scount == 0 && version == 1) {
*error = NS_LDAP_CONFIG;
return (NULL);
}
/* Count the number of preferred servers */
if (preflist && preflist[0])
for (i = 0; preflist[i] != NULL; i++)
pcount++;
/* Sanity check. */
if (scount == 0 && pcount == 0) {
*error = NS_LDAP_CONFIG;
return (NULL);
}
/* Make room for the returned list of servers */
retsrvs = (char **)calloc(scount + pcount + 1, sizeof (char *));
if (retsrvs == NULL) {
*error = NS_LDAP_MEMORY;
return (NULL);
}
/*
* if the preferred server list is empty,
* just return a copy of the server list
*/
if (pcount == 0) {
tsrvs = srvlist;
while (*tsrvs)
retsrvs[all++] = *(tsrvs++);
return (retsrvs);
}
all = 0;
/*
* if the server list is empty,
* just return a copy of the preferred server list
*/
if (scount == 0) {
tsrvs = preflist;
while (*tsrvs)
retsrvs[all++] = *(tsrvs++);
return (retsrvs);
}
all = 0;
/* Make room for the servers whose memory needs to be freed */
dupsrvs = (char **)calloc(scount + pcount + 1, sizeof (char *));
if (dupsrvs == NULL) {
free(retsrvs);
*error = NS_LDAP_MEMORY;
return (NULL);
}
/*
* If version 1,
* throw out preferred servers not on server list.
* If version 2, make a copy of the preferred server list.
*/
if (version == 1) {
tsrvs = preflist;
while (*tsrvs) {
char **ttsrvs = srvlist;
while (*ttsrvs) {
if (strcmp(*tsrvs, *(ttsrvs)) == 0)
break;
ttsrvs++;
}
if (*ttsrvs != NULL)
retsrvs[all++] = *tsrvs;
else
dupsrvs[dup++] = *tsrvs;
tsrvs++;
}
} else {
tsrvs = preflist;
while (*tsrvs)
retsrvs[all++] = *(tsrvs++);
}
/*
* If version 1,
* if PREF_ONLY is false, we append the non-preferred servers
* to bottom of list.
* For version 2, always append.
*/
if (flag == B_TRUE || version != 1) {
tsrvs = srvlist;
while (*tsrvs) {
char **ttsrvs = preflist;
while (*ttsrvs) {
if (strcmp(*tsrvs, *ttsrvs) == 0) {
break;
}
ttsrvs++;
}
if (*ttsrvs == NULL)
retsrvs[all++] = *tsrvs;
else
dupsrvs[dup++] = *tsrvs;
tsrvs++;
}
}
/* free memory for duplicate servers */
if (dup) {
for (tsrvs = dupsrvs; *tsrvs; tsrvs++)
free(*tsrvs);
}
free(dupsrvs);
return (retsrvs);
}
/*
* FUNCTION: __s_api_removeBadServers
* Contacts the ldap cache manager for marking the
* problem servers as down, so that the server is
* not contacted until the TTL expires.
*/
void
__s_api_removeBadServers(char ** Servers)
{
char **host;
if (Servers == NULL)
return;
for (host = Servers; *host != NULL; host++) {
if (__s_api_removeServer(*host) < 0) {
/*
* Couldn't remove server from
* server list. Log a warning.
*/
syslog(LOG_WARNING, "libsldap: could "
"not remove %s from servers list", *host);
}
}
}
/*
* FUNCTION: __s_api_free2dArray
*/
void
__s_api_free2dArray(char ** inarray)
{
char **temptr;
if (inarray == NULL)
return;
for (temptr = inarray; *temptr != NULL; temptr++) {
free(*temptr);
}
free(inarray);
}
/*
* FUNCTION: __s_api_cp2dArray
*/
char **
__s_api_cp2dArray(char **inarray)
{
char **newarray;
char **ttarray, *ret;
int count;
if (inarray == NULL)
return (NULL);
for (count = 0; inarray[count] != NULL; count++)
;
newarray = (char **)calloc(count + 1, sizeof (char *));
if (newarray == NULL)
return (NULL);
ttarray = newarray;
for (; *inarray; inarray++) {
*(ttarray++) = ret = strdup(*inarray);
if (ret == NULL) {
__s_api_free2dArray(newarray);
return (NULL);
}
}
return (newarray);
}
/*
* FUNCTION: __s_api_isCtrlSupported
* Determines if the passed control is supported by the LDAP sever.
* RETURNS: NS_LDAP_SUCCESS if yes, NS_LDAP_OP_FAIL if not.
*/
int
__s_api_isCtrlSupported(Connection *con, char *ctrlString)
{
char **ctrl;
int len;
len = strlen(ctrlString);
for (ctrl = con->controls; ctrl && *ctrl; ctrl++) {
if (strncasecmp(*ctrl, ctrlString, len) == 0)
return (NS_LDAP_SUCCESS);
}
return (NS_LDAP_OP_FAILED);
}
/*
* FUNCTION: __s_api_toFollowReferrals
* Determines if need to follow referral for an SLDAP API.
* RETURN VALUES: NS_LDAP_SUCCESS, NS_LDAP_INVALID_PARAM, or
* other rc from __ns_ldap_getParam()
* INPUT: flags
* OUTPUT: toFollow, errorp
*/
int
__s_api_toFollowReferrals(const int flags,
int *toFollow,
ns_ldap_error_t **errorp)
{
void **paramVal = NULL;
int rc = 0;
int iflags = 0;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_toFollowReferrals START\n");
#endif
/* Either NS_LDAP_NOREF or NS_LDAP_FOLLOWREF not both */
if ((flags & (NS_LDAP_NOREF | NS_LDAP_FOLLOWREF)) ==
(NS_LDAP_NOREF | NS_LDAP_FOLLOWREF)) {
return (NS_LDAP_INVALID_PARAM);
}
/*
* if the NS_LDAP_NOREF or NS_LDAP_FOLLOWREF is set
* this will take precendence over the values specified
* in the configuration file
*/
if (flags & (NS_LDAP_NOREF | NS_LDAP_FOLLOWREF)) {
iflags = flags;
} else {
rc = __ns_ldap_getParam(NS_LDAP_SEARCH_REF_P,
¶mVal, errorp);
if (rc != NS_LDAP_SUCCESS)
return (rc);
if (paramVal == NULL || *paramVal == NULL) {
(void) __ns_ldap_freeParam(¶mVal);
if (*errorp)
(void) __ns_ldap_freeError(errorp);
*toFollow = TRUE;
return (NS_LDAP_SUCCESS);
}
iflags = (* (int *)(*paramVal));
(void) __ns_ldap_freeParam(¶mVal);
}
if (iflags & NS_LDAP_NOREF)
*toFollow = FALSE;
else
*toFollow = TRUE;
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: __s_api_addRefInfo
* Insert a referral info into a referral info list.
* RETURN VALUES: NS_LDAP_SUCCESS, NS_LDAP_MEMORY, NS_LDAP_OP_FAILED
* INPUT: LDAP URL, pointer to the referral info list,
* search baseDN, search scope, search filter,
* previous connection
*/
int
__s_api_addRefInfo(ns_referral_info_t **head, char *url,
char *baseDN, int *scope,
char *filter, LDAP *ld)
{
char errmsg[MAXERROR], *tmp;
ns_referral_info_t *ref, *tmpref;
LDAPURLDesc *ludp = NULL;
int hostlen;
char *ld_defhost = NULL;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_addRefInfo START\n");
#endif
/* sanity check */
if (head == NULL)
return (NS_LDAP_OP_FAILED);
/*
* log error and return NS_LDAP_SUCCESS
* if one of the following:
* 1. non-LDAP URL
* 2. LDAP URL which can not be parsed
*/
if (!ldap_is_ldap_url(url) ||
ldap_url_parse_nodn(url, &ludp) != 0) {
(void) snprintf(errmsg, MAXERROR, "%s: %s",
gettext("Invalid or non-LDAP URL when"
" processing referrals URL"),
url);
syslog(LOG_ERR, "libsldap: %s", errmsg);
if (ludp)
ldap_free_urldesc(ludp);
return (NS_LDAP_SUCCESS);
}
ref = (ns_referral_info_t *)calloc(1,
sizeof (ns_referral_info_t));
if (ref == NULL) {
ldap_free_urldesc(ludp);
return (NS_LDAP_MEMORY);
}
/*
* we do have a valid URL and we were able to parse it
* however, we still need to find out what hostport to
* use if none were provided in the LDAP URL
* (e.g., ldap:///...)
*/
if ((ludp->lud_port == 0) && (ludp->lud_host == NULL)) {
if (ld == NULL) {
(void) snprintf(errmsg, MAXERROR, "%s: %s",
gettext("no LDAP handle when"
" processing referrals URL"),
url);
syslog(LOG_WARNING, "libsldap: %s", errmsg);
ldap_free_urldesc(ludp);
free(ref);
return (NS_LDAP_SUCCESS);
} else {
(void) ldap_get_option(ld, LDAP_OPT_HOST_NAME,
&ld_defhost);
if (ld_defhost == NULL) {
(void) snprintf(errmsg, MAXERROR, "%s: %s",
gettext("not able to retrieve default "
"host when processing "
"referrals URL"),
url);
syslog(LOG_WARNING, "libsldap: %s", errmsg);
ldap_free_urldesc(ludp);
free(ref);
return (NS_LDAP_SUCCESS);
} else {
ref->refHost = strdup(ld_defhost);
if (ref->refHost == NULL) {
ldap_free_urldesc(ludp);
free(ref);
return (NS_LDAP_MEMORY);
}
}
}
} else {
/*
* add 4 here:
* 1 for the last '\0'.
* 1 for host and prot separator ":"
* and "[" & "]" for possible ipV6 addressing
*/
hostlen = strlen(ludp->lud_host) +
sizeof (MAXPORTNUMBER_STR) + 4;
ref->refHost = (char *)malloc(hostlen);
if (ref->refHost == NULL) {
ldap_free_urldesc(ludp);
free(ref);
return (NS_LDAP_MEMORY);
}
if (ludp->lud_port != 0) {
/*
* serverAddr = host:port
* or
* if host is an IPV6 address
* [host]:port
*/
tmp = strstr(url, ludp->lud_host);
if (tmp && (tmp > url) && *(tmp - 1) == '[') {
(void) snprintf(ref->refHost, hostlen,
"[%s]:%d",
ludp->lud_host,
ludp->lud_port);
} else {
(void) snprintf(ref->refHost, hostlen,
"%s:%d",
ludp->lud_host,
ludp->lud_port);
}
} else {
/* serverAddr = host */
(void) snprintf(ref->refHost, hostlen, "%s",
ludp->lud_host);
}
}
if (ludp->lud_dn) {
ref->refDN = strdup(ludp->lud_dn);
if (ref->refDN == NULL) {
ldap_free_urldesc(ludp);
free(ref->refHost);
free(ref);
return (NS_LDAP_MEMORY);
}
} else {
if (baseDN) {
ref->refDN = strdup(baseDN);
if (ref->refDN == NULL) {
ldap_free_urldesc(ludp);
free(ref->refHost);
free(ref);
return (NS_LDAP_MEMORY);
}
}
}
if (filter)
ref->refFilter = strdup(filter);
else if (ludp->lud_filter)
ref->refFilter = strdup(ludp->lud_filter);
else
ref->refFilter = strdup("");
if (ref->refFilter == NULL) {
ldap_free_urldesc(ludp);
free(ref->refHost);
if (ref->refDN)
free(ref->refDN);
free(ref);
return (NS_LDAP_MEMORY);
}
if (scope)
ref->refScope = *scope;
ref->next = NULL;
ldap_free_urldesc(ludp);
/* insert the referral info */
if (*head) {
for (tmpref = *head; tmpref->next; tmpref = tmpref->next)
;
tmpref->next = ref;
} else
*head = ref;
return (NS_LDAP_SUCCESS);
}
/*
* FUNCTION: __s_api_deleteRefInfo
* Delete a referral info list.
* INPUT: pointer to the referral info list
*/
void
__s_api_deleteRefInfo(ns_referral_info_t *head)
{
ns_referral_info_t *ref, *tmp;
#ifdef DEBUG
(void) fprintf(stderr, "__s_api_deleteRefInfo START\n");
#endif
for (ref = head; ref; ) {
if (ref->refHost)
free(ref->refHost);
if (ref->refDN)
free(ref->refDN);
if (ref->refFilter)
free(ref->refFilter);
tmp = ref->next;
free(ref);
ref = tmp;
}
}
/*
* FUNCTION: __s_api_get_SSD_from_SSDtoUse_service
*
* Retrieves the Service Search Descriptors which should be used for
* the given service. For example, return all the "passwd" SSDs for
* service "shadow" if no SSD is defined for service "shadow" and
* no filter component is defined in all the "passwd" SSDs. This idea
* of sharing the SSDs defined for some other service is to reduce the
* configuration complexity. For a service, which does not have its own
* entries in the LDAP directory, SSD for it is useless, and should not
* be set. But since this service must share the container with at least
* one other service which does have it own entries, the SSD for
* this other service will be shared by this service.
* This other service is called the SSD-to-use service.
* The static data structure, ns_def_map[], in this file
* defines the SSD-to-use service for all the services supported.
*
* RETURN VALUES: NS_LDAP_SUCCESS, NS_LDAP_MEMORY, NS_LDAP_INVALID_PARAM
* INPUT: service
* OUTPUT: *SSDlist, *errorp if error
*/
int
__s_api_get_SSD_from_SSDtoUse_service(const char *service,
ns_ldap_search_desc_t ***SSDlist,
ns_ldap_error_t **errorp)
{
int i, rc;
int found = FALSE;
int filter_found = FALSE;
char *SSD_service = NULL;
char errmsg[MAXERROR];
ns_ldap_search_desc_t **sdlist;
int auto_service = FALSE;
#ifdef DEBUG
(void) fprintf(stderr,
"__s_api_get_SSD_from_SSDtoUse_service START\n");
#endif
if (SSDlist == NULL || errorp == NULL)
return (NS_LDAP_INVALID_PARAM);
*SSDlist = NULL;
*errorp = NULL;
if (service == NULL)
return (NS_LDAP_SUCCESS);
if (strncasecmp(service, "auto_", 5) == 0)
auto_service = TRUE;
/*
* First try to return the configured SSDs for the input server
*/
rc = __ns_ldap_getSearchDescriptors(service, SSDlist, errorp);
if (rc != NS_LDAP_SUCCESS)
return (rc);
else {
if (*SSDlist != NULL)
return (NS_LDAP_SUCCESS);
}
/*
* If service == auto_* and SSD is not found,
* then try automount to see if there is an SSD
* for automount.
*/
if (auto_service) {
rc = __ns_ldap_getSearchDescriptors(
"automount", SSDlist, errorp);
if (rc != NS_LDAP_SUCCESS)
return (rc);
else {
if (*SSDlist != NULL) {
/*
* If SSDlist is found,
* prepend automountMapName to the basedn
* in the SSDlist
*
*/
rc = __s_api_prepend_automountmapname(
service,
SSDlist,
errorp);
if (rc != NS_LDAP_SUCCESS) {
(void) __ns_ldap_freeSearchDescriptors(
SSDlist);
*SSDlist = NULL;
}
return (rc);
}
}
}
/*
* Find the SSDtoUse service.
* If none found, flag "found" remains FALSE.
*/
for (i = 0; ns_def_map[i].service != NULL; i++) {
if (ns_def_map[i].SSDtoUse_service &&
strcasecmp(service,
ns_def_map[i].service) == 0) {
found = TRUE;
SSD_service = ns_def_map[i].SSDtoUse_service;
break;
}
}
if (!found)
return (NS_LDAP_SUCCESS);
/*
* return the SSDs for SSD_service only if no optional filter
* component is defined in the SSDs
*/
rc = __ns_ldap_getSearchDescriptors(SSD_service,
SSDlist, errorp);
if (rc != NS_LDAP_SUCCESS) {
return (rc);
} else {
if (*SSDlist == NULL)
return (NS_LDAP_SUCCESS);
/* check to see if filter defined in SSD */
for (sdlist = *SSDlist; *sdlist; sdlist++) {
if ((*sdlist)->filter &&
strlen((*sdlist)->filter) > 0) {
filter_found = TRUE;
break;
}
}
if (filter_found) {
(void) __ns_ldap_freeSearchDescriptors(SSDlist);
*SSDlist = NULL;
(void) snprintf(errmsg, sizeof (errmsg),
gettext("Service search descriptor for "
"service '%s' contains filter, "
"which can not be used for "
"service '%s'."),
SSD_service, service);
MKERROR(LOG_WARNING, *errorp, NS_CONFIG_FILE,
strdup(errmsg), NS_LDAP_CONFIG);
return (NS_LDAP_CONFIG);
}
}
return (NS_LDAP_SUCCESS);
}
/*
* verify addr is an IPv4 address with the optional [:portno]
* RFC2373 & RFC2732 & RFC2396
*/
int
__s_api_isipv4(char *addr)
{
int i, seg, digit, port;
if (!addr)
return (0);
digit = seg = port = 0;
for (i = 0; i < strlen(addr); i++) {
if (isdigit(addr[i])) {
digit++;
continue;
}
if (addr[i] == '.') {
if (digit > 3 || digit == 0)
return (0);
digit = 0;
seg++;
continue;
}
if (addr[i] == ':') {
if (digit > 3)
return (0);
port++;
digit = 0;
seg++;
continue;
}
return (0);
}
if ((seg == 3 && port == 0 && digit > 0 && digit < 4) ||
(seg == 4 && port == 1 && digit > 0))
return (1);
return (0);
}
/*
* verify addr is an IPv6 address with the optional [IPv6]:portno
* RFC2373 & RFC2732 & RFC2396
*/
int
__s_api_isipv6(char *addr)
{
int i, col, digit, port, dc, tc;
char *laddr, *c1, *s;
if (!addr)
return (0);
s = addr;
laddr = NULL;
digit = col = port = 0;
if (addr[0] == '[') {
laddr = strdup(addr);
if (!laddr)
return (0);
c1 = strchr(laddr, ']');
/* only 1 ']' should be in an addr */
if (!c1 || (strchr(c1+1, ']')))
goto bad;
switch (c1[1]) {
case ':':
port++;
for (i = 2; i < strlen(c1); i++) {
if (!isdigit(c1[i]))
goto bad;
digit++;
}
if (!digit)
goto bad;
c1[0] = '\0';
break;
case '\0':
c1[0] = '\0';
break;
default:
goto bad;
}
s = &laddr[1];
}
digit = dc = tc = 0;
for (i = 0; i < strlen(s); i++) {
if (isxdigit(s[i])) {
if (digit == 0)
dc = i;
digit++;
col = 0;
continue;
}
if (s[i] == ':') {
tc++;
if ((col > 1) || (i && !col && !digit))
goto bad;
digit = 0;
col++;
continue;
}
if (s[i] == '.') {
if (__s_api_isipv4(&s[dc]) && tc)
goto good;
else
goto bad;
}
goto bad;
}
good:
free(laddr);
return (1);
bad:
free(laddr);
return (0);
}
/*
* verify addr is a valid hostname with the optional [:portno]
* RFC2373 & RFC2732 & RFC2396
*/
int
__s_api_ishost(char *addr)
{
int i, seg, alpha, digit, port;
if (!addr)
return (0);
alpha = digit = seg = port = 0;
/* must start with alpha character */
if (!isalpha(addr[0]))
return (0);
for (i = 0; i < strlen(addr); i++) {
if (isalpha(addr[i]) || (i && addr[i] == '-')) {
alpha++;
continue;
}
if (isdigit(addr[i])) {
digit++;
continue;
}
if (addr[i] == '.') {
if (!alpha && !digit)
return (0);
alpha = digit = 0;
seg++;
continue;
}
if (addr[i] == ':') {
if (!alpha && !digit)
return (0);
alpha = digit = 0;
port++;
seg++;
continue;
}
return (0);
}
if ((port == 0 && (seg || alpha || digit)) ||
(port == 1 && alpha == 0 && digit))
return (1);
return (0);
}
/*
* Prepend automountMapName=auto_xxx to the basedn
* in the SSDlist
*/
int __s_api_prepend_automountmapname(
const char *service,
ns_ldap_search_desc_t ***SSDlist,
ns_ldap_error_t **errorp)
{
int i, rc;
ns_ldap_search_desc_t ** ssdlist = NULL;
if (service == NULL || SSDlist == NULL || *SSDlist == NULL)
return (NS_LDAP_INVALID_PARAM);
ssdlist = *SSDlist;
for (i = 0; ssdlist[i] != NULL; i++) {
rc = __s_api_prepend_automountmapname_to_dn(
service, &ssdlist[i]->basedn, errorp);
if (rc != NS_LDAP_SUCCESS)
return (rc);
}
return (NS_LDAP_SUCCESS);
}
/*
* Prepend automountMapName=auto_xxx to the DN
* Construct a string of
* "automountMapName=auto_xxx,dn"
*
* If automountMapName is mapped to some other attribute,
* then use the mapping in the setup.
*
* If a version 1 profile is in use, use nisMapName for
* backward compatibility (i.e. "nisMapName=auto_xxx,dn").
*/
int
__s_api_prepend_automountmapname_to_dn(
const char *service,
char **dn,
ns_ldap_error_t **errorp)
{
int rc, len_s = 0, len_d = 0, len = 0;
char *buffer = NULL;
char *default_automountmapname = "automountMapName";
char *automountmapname = NULL;
char **mappedattrs = NULL;
char errstr[MAXERROR];
void **paramVal = NULL;
if (service == NULL || dn == NULL || *dn == NULL)
return (NS_LDAP_INVALID_PARAM);
rc = __ns_ldap_getParam(NS_LDAP_FILE_VERSION_P, ¶mVal, errorp);
if (rc != NS_LDAP_SUCCESS || !paramVal || !*paramVal) {
if (paramVal)
(void) __ns_ldap_freeParam(¶mVal);
return (rc);
}
if (strcasecmp(*paramVal, NS_LDAP_VERSION_1) == 0) {
automountmapname = strdup("nisMapName");
(void) __ns_ldap_freeParam(¶mVal);
if (automountmapname == NULL) {
return (NS_LDAP_MEMORY);
}
} else {
(void) __ns_ldap_freeParam(¶mVal);
/* Find mapped attribute name of auto_xxx first */
mappedattrs = __ns_ldap_getMappedAttributes(
service, default_automountmapname);
/*
* if mapped attribute name of auto_xxx is not found,
* find the mapped attribute name of automount
*/
if (mappedattrs == NULL)
mappedattrs = __ns_ldap_getMappedAttributes(
"automount", default_automountmapname);
/*
* if mapped attr is not found, use the default automountmapname
*/
if (mappedattrs == NULL) {
automountmapname = strdup(default_automountmapname);
if (automountmapname == NULL)
return (NS_LDAP_MEMORY);
} else {
if (mappedattrs[0] != NULL) {
/*
* Copy it from the mapped attr list
* Assume it's 1 to 1 mapping
* 1 to n does not make sense
*/
automountmapname = strdup(mappedattrs[0]);
__s_api_free2dArray(mappedattrs);
if (automountmapname == NULL) {
return (NS_LDAP_MEMORY);
}
} else {
/*
* automountmapname is mapped to an empty string
*/
__s_api_free2dArray(mappedattrs);
(void) sprintf(errstr,
gettext(
"Attribute automountMapName is "
"mapped to an empty string.\n"));
MKERROR(LOG_WARNING, *errorp, NS_CONFIG_SYNTAX,
strdup(errstr), NS_LDAP_MEMORY);
return (NS_LDAP_CONFIG);
}
}
}
len_s = strlen(service);
len_d = strlen(*dn);
/* automountMapName + "=" + service + "," + dn + '\0' */
len = strlen(automountmapname) + 1 + len_s + 1 + len_d + 1;
buffer = (char *)malloc(len);
if (buffer == NULL) {
free(automountmapname);
return (NS_LDAP_MEMORY);
}
(void) snprintf(buffer, len, "%s=%s,%s",
automountmapname, service, *dn);
buffer[len-1] = '\0';
free(automountmapname);
/* free the original dn */
(void) free(*dn);
*dn = buffer;
return (NS_LDAP_SUCCESS);
}
/*
* Map the LDAP error code and error message from LDAP server
* to a password status used for password aging/management.
*/
ns_ldap_passwd_status_t
__s_api_set_passwd_status(int errnum, char *errmsg)
{
syslog(LOG_DEBUG, "libsldap: got LDAP errnum %d & message: %s ", errnum,
(errmsg != NULL) ? errmsg : "error msg not available");
if (errmsg) {
if (errnum ==
LDAP_INVALID_CREDENTIALS) {
/*
* case 1 (Bind):
* password expired
*/
if (strstr(errmsg,
NS_PWDERR_EXPIRED))
return (NS_PASSWD_EXPIRED);
}
if (errnum ==
LDAP_UNWILLING_TO_PERFORM) {
/*
* case 1.1 (Bind):
* password expired
*/
if (strstr(errmsg,
NS_PWDERR_EXPIRED))
return (NS_PASSWD_EXPIRED);
/*
* case 2 (Bind):
* Account inactivated
*/
if (strstr(errmsg,
NS_PWDERR_ACCT_INACTIVATED))
return (NS_PASSWD_EXPIRED);
/*
* case 3 (Modify passwd):
* the user is not allow to change
* password; only admin can change it
*/
if (strstr(errmsg,
NS_PWDERR_CHANGE_NOT_ALLOW))
return (NS_PASSWD_CHANGE_NOT_ALLOWED);
}
if (errnum ==
LDAP_CONSTRAINT_VIOLATION) {
/*
* case 4 (Bind):
* the user account is locked due to
* too many login failures.
*/
if (strstr(errmsg,
NS_PWDERR_MAXTRIES))
return (NS_PASSWD_RETRY_EXCEEDED);
/*
* case 5 (Modify passwd):
* syntax error: the new password
* has length less than defined
* minimum
* Not true anymore with strong password
* policies on LDAP server: errmsg that
* contain NS_PWDERR_INVALID_SYNTAX may
* have different meanings.
* To keep compatibility with older password
* policy, check if errmsg is strictly equal
* to NS_PWDERR_INVALID_SYNTAX and if yes only,
* return NS_PASSWD_TOO_SHORT.
*/
if (strcmp(errmsg,
NS_PWDERR_INVALID_SYNTAX) == 0)
return (NS_PASSWD_TOO_SHORT);
if (strstr(errmsg,
NS_PWDERR_INVALID_SYNTAX))
return (NS_PASSWD_INVALID_SYNTAX);
/*
* case 6 (Modify passwd):
* trivial password: same value as
* that of attribute cn, sn, or uid ...
*/
if (strstr(errmsg,
NS_PWDERR_TRIVIAL_PASSWD))
return (NS_PASSWD_INVALID_SYNTAX);
/*
* case 7 (Modify passwd):
* re-use one of the old passwords
* in history list
*/
if (strstr(errmsg,
NS_PWDERR_IN_HISTORY))
return (NS_PASSWD_IN_HISTORY);
/*
* case 8 (Modify passwd):
* password not allowed to be
* changed yet; within minimum
* age
*/
if (strstr(errmsg,
NS_PWDERR_WITHIN_MIN_AGE))
return (NS_PASSWD_WITHIN_MIN_AGE);
}
}
return (NS_PASSWD_GOOD);
}
/*
* Determine if the input OID list contains
* one of the password control OIDs, which are:
* LDAP_CONTROL_PWEXPIRED: 2.16.840.1.113730.3.4.4
* LDAP_CONTROL_PWEXPIRING: 2.16.840.1.113730.3.4.5.
* If yes, return 1, if no, 0.
*/
int
__s_api_contain_passwd_control_oid(char **oids)
{
char **oid;
if (oids == NULL)
return (0);
for (oid = oids; *oid; oid++) {
if (strcmp(*oid, LDAP_CONTROL_PWEXPIRED) == 0 ||
strcmp(*oid, LDAP_CONTROL_PWEXPIRING) == 0) {
return (1);
}
}
return (0);
}
/*
* Determine if the input OID list contains LDAP V3 password less
* account management control OID, which is:
* NS_LDAP_ACCOUNT_USABLE_CONTROL:1.3.6.1.4.1.42.2.27.9.5.8
* If yes, return 1, if no, 0.
*/
int
__s_api_contain_account_usable_control_oid(char **oids)
{
char **oid;
if (oids == NULL)
return (0);
for (oid = oids; *oid; oid++) {
if (strcmp(*oid, NS_LDAP_ACCOUNT_USABLE_CONTROL) == 0) {
return (1);
}
}
return (0);
}
/*
* For some databases in name switch, the name and aliases are saved
* as "cn". When the "cn" valuse are retrieved, there is no distinction
* which is the name and which is(are) aliase(s).
* This function is to parse RDN and find the value of the "cn" and
* then find the matching value in "cn" attribute.
* Also see RFC 2307 section 5.6.
*
* Input -
* entry: An LDAP entry
* attrptr: A attribute which value appears in RDN
* This should be "cn" for the name switch for now.
* case_ignore: 0 Case sensitive comparison on the attribute value
* 1 Case insensitive comparison
*
* Return -
* The value of an attrbute which is used as canonical name
* This is read only and the caller should not try to free it.
* If it's a NULL, it could be either an RDN parsing error
* or RDN value does not match any existing "cn" values.
* e.g.
* dn: cn=xx+ipserviceprotocol=udp,......
* cn: aa
* cn: bb
*
* Note:
* Although the name switch/ldap's rdn is in "cn=xx" or "cn=xx+..."
* format, this function makes no such assumption. If the DN
* is saved as "dn: yy=...+sn=my_canocical_name, ..", then it can still work.
* The comments use "cn" as an example only.
*
*/
typedef int (*cmpfunc)(const char *, const char *);
char *
__s_api_get_canonical_name(ns_ldap_entry_t *entry, ns_ldap_attr_t *attrptr,
int case_ignore) {
uint_t i;
char *token, *lasts, *value = NULL;
char **rdn = NULL, **attrs = NULL, **values = NULL;
char *rdn_attr_value = NULL;
cmpfunc cmp;
if (entry == NULL || attrptr == NULL)
return (NULL);
/* "values" is read-only */
if ((values = __ns_ldap_getAttr(entry, "dn")) == NULL ||
values[0] == NULL)
return (NULL);
if ((rdn = ldap_explode_dn(values[0], 0)) == NULL ||
rdn[0] == NULL)
return (NULL);
if ((attrs = ldap_explode_rdn(rdn[0], 0)) == NULL) {
ldap_value_free(rdn);
return (NULL);
}
/* Assume the rdn is normalized */
for (i = 0; attrs[i] != NULL; i++) {
/* parse attribute name and value, get attribute name first */
if ((token = strtok_r(attrs[i], "=", &lasts)) == NULL) {
goto cleanup;
}
if (strcasecmp(token, attrptr->attrname) == 0) {
/* get value */
rdn_attr_value = lasts;
break;
}
}
if (rdn_attr_value) {
if (case_ignore)
cmp = strcasecmp;
else
cmp = strcmp;
/*
* After parsing RDN and find the matching attribute in RDN,
* match rdn value with values in "cn".
*/
for (i = 0; i < attrptr->value_count; i++) {
if (attrptr->attrvalue[i] &&
(*cmp)(rdn_attr_value,
attrptr->attrvalue[i]) == 0) {
/* RDN "cn" value matches the "cn" value */
value = attrptr->attrvalue[i];
break;
}
}
}
cleanup:
ldap_value_free(rdn);
ldap_value_free(attrs);
return (value);
}
/*
* This function requests a server to be removed from
* the cache manager maintained server list. This is
* done via the door functionality.
* Returns 0 if OK, else a negative value.
*/
int
__s_api_removeServer(const char *server)
{
union {
ldap_data_t s_d;
char s_b[DOORBUFFERSIZE];
} space;
ns_server_info_t r, *ret = &r;
const char *ireq;
ldap_data_t *sptr;
int ndata;
int adata;
int len;
int rc;
ns_ldap_error_t *error = NULL;
if (server == NULL)
return (-1);
ireq = NS_CACHE_NORESP;
if (__s_api_isStandalone()) {
/*
* Remove 'server' from the standalone server list.
* __s_api_findRootDSE() is the standalone version
* of getldap_get_serverInfo() used in ldap_cachemgr.
* Request NS_CACHE_NORESP indicates 'server' should
* be removed.
*/
if (__s_api_findRootDSE(ireq,
server,
NS_CACHE_ADDR_IP,
NULL,
&error) != NS_LDAP_SUCCESS) {
syslog(LOG_WARNING,
"libsldap (\"standalone\" mode): "
" Unable to remove %s - %s",
server,
error != NULL && error->message != NULL ?
error->message : " no error info");
if (error != NULL) {
(void) __ns_ldap_freeError(&error);
}
return (NS_CACHE_NOSERVER);
}
return (0);
}
(void) memset(ret, 0, sizeof (ns_server_info_t));
(void) memset(space.s_b, 0, DOORBUFFERSIZE);
adata = (sizeof (ldap_call_t) + strlen(ireq) +
strlen(NS_CACHE_ADDR_IP) + 1);
adata += strlen(DOORLINESEP) + 1;
adata += strlen(server) + 1;
ndata = sizeof (space);
space.s_d.ldap_call.ldap_callnumber = GETLDAPSERVER;
len = sizeof (space) - sizeof (space.s_d.ldap_call.ldap_callnumber);
if (strlcpy(space.s_d.ldap_call.ldap_u.domainname, ireq, len) >= len)
return (-1);
if (strlcat(space.s_d.ldap_call.ldap_u.domainname,
NS_CACHE_ADDR_IP, len) >= len)
return (-1);
if (strlcat(space.s_d.ldap_call.ldap_u.domainname, DOORLINESEP, len) >=
len)
return (-1);
if (strlcat(space.s_d.ldap_call.ldap_u.domainname, server, len) >= len)
return (-1);
sptr = &space.s_d;
/* try to remove the server via the door interface */
rc = __ns_ldap_trydoorcall(&sptr, &ndata, &adata);
/* clean up the door call */
if (sptr != &space.s_d) {
(void) munmap((char *)sptr, ndata);
}
return (rc);
}
void
__s_api_free_server_info(ns_server_info_t *sinfo) {
if (sinfo->server) {
free(sinfo->server);
sinfo->server = NULL;
}
if (sinfo->serverFQDN) {
free(sinfo->serverFQDN);
sinfo->serverFQDN = NULL;
}
__s_api_free2dArray(sinfo->saslMechanisms);
sinfo->saslMechanisms = NULL;
__s_api_free2dArray(sinfo->controls);
sinfo->controls = NULL;
}
/*
* Create an ns_ldap_error structure, set status to 'rc',
* and copy in the error message 'msg'.
*/
ns_ldap_error_t *
__s_api_make_error(int rc, char *msg) {
ns_ldap_error_t *ep;
ep = (ns_ldap_error_t *)calloc(1, sizeof (*ep));
if (ep == NULL)
return (NULL);
ep->status = rc;
if (msg != NULL)
ep->message = strdup(msg); /* OK if ep->message is NULL */
return (ep);
}
/*
* Make a copy of the input ns_ldap_error.
*/
ns_ldap_error_t *
__s_api_copy_error(ns_ldap_error_t *errorp) {
ns_ldap_error_t *ep;
char *msg;
if (errorp == NULL)
return (NULL);
ep = (ns_ldap_error_t *)malloc(sizeof (*ep));
if (ep != NULL) {
*ep = *errorp;
if (ep->message != NULL) {
msg = strdup(ep->message);
if (msg == NULL) {
free(ep);
ep = NULL;
} else
ep->message = msg;
}
}
return (ep);
}