diff options
Diffstat (limited to 'usr/src/lib/nsswitch/ldap/common/getexecattr.c')
-rw-r--r-- | usr/src/lib/nsswitch/ldap/common/getexecattr.c | 540 |
1 files changed, 540 insertions, 0 deletions
diff --git a/usr/src/lib/nsswitch/ldap/common/getexecattr.c b/usr/src/lib/nsswitch/ldap/common/getexecattr.c new file mode 100644 index 0000000000..4dfedc8628 --- /dev/null +++ b/usr/src/lib/nsswitch/ldap/common/getexecattr.c @@ -0,0 +1,540 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License, Version 1.0 only + * (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 2003 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#pragma ident "%Z%%M% %I% %E% SMI" + +#include <secdb.h> +#include <exec_attr.h> +#include "ldap_common.h" + + +/* exec_attr attributes filters */ +#define ISWILD(x) (x == NULL) ? "*" : x +#define _EXEC_NAME "cn" +#define _EXEC_POLICY "SolarisKernelSecurityPolicy" +#define _EXEC_TYPE "SolarisProfileType" +#define _EXEC_RES1 "SolarisAttrRes1" +#define _EXEC_RES2 "SolarisAttrRes2" +#define _EXEC_ID "SolarisProfileId" +#define _EXEC_ATTRS "SolarisAttrKeyValue" +#define _EXEC_GETEXECNAME "(&(objectClass=SolarisExecAttr)(cn=%s)"\ + "(SolarisKernelSecurityPolicy=%s)"\ + "(SolarisProfileType=%s))" +#define _EXEC_GETEXECNAME_SSD "(&(%%s)(cn=%s)"\ + "(SolarisKernelSecurityPolicy=%s)"\ + "(SolarisProfileType=%s))" +#define _EXEC_GETEXECID "(&(objectClass=SolarisExecAttr)"\ + "(SolarisProfileId=%s)"\ + "(SolarisKernelSecurityPolicy=%s)"\ + "(SolarisProfileType=%s))" +#define _EXEC_GETEXECID_SSD "(&(%%s)"\ + "(SolarisProfileId=%s)"\ + "(SolarisKernelSecurityPolicy=%s)"\ + "(SolarisProfileType=%s))" +#define _EXEC_GETEXECNAMEID "(&(objectClass=SolarisExecAttr)(cn=%s)"\ + "(SolarisProfileId=%s)"\ + "(SolarisKernelSecurityPolicy=%s)"\ + "(SolarisProfileType=%s))" +#define _EXEC_GETEXECNAMEID_SSD "(&(%%s)(cn=%s)"\ + "(SolarisProfileId=%s)"\ + "(SolarisKernelSecurityPolicy=%s)"\ + "(SolarisProfileType=%s))" + + +/* from libnsl */ +extern int _doexeclist(nss_XbyY_args_t *); +extern char *_exec_wild_id(char *, const char *); +extern void _exec_cleanup(nss_status_t, nss_XbyY_args_t *); + + +static const char *exec_attrs[] = { + _EXEC_NAME, + _EXEC_POLICY, + _EXEC_TYPE, + _EXEC_RES1, + _EXEC_RES2, + _EXEC_ID, + _EXEC_ATTRS, + (char *)NULL +}; + + +#ifdef DEBUG +static void +_print_execstr(execstr_t *exec) +{ + + (void) fprintf(stdout, " exec-name: [%s]\n", exec->name); + if (exec->policy != (char *)NULL) { + (void) fprintf(stdout, " policy: [%s]\n", exec->policy); + } + if (exec->type != (char *)NULL) { + (void) fprintf(stdout, " type: [%s]\n", exec->type); + } + if (exec->res1 != (char *)NULL) { + (void) fprintf(stdout, " res1: [%s]\n", exec->res1); + } + if (exec->res2 != (char *)NULL) { + (void) fprintf(stdout, " res2: [%s]\n", exec->res2); + } + if (exec->id != (char *)NULL) { + (void) fprintf(stdout, " id: [%s]\n", exec->id); + } + if (exec->attr != (char *)NULL) { + (void) fprintf(stdout, " attr: [%s]\n", exec->attr); + } + if (exec->next != (execstr_t *)NULL) { + (void) fprintf(stdout, " next: [%s]\n", exec->next->name); + (void) fprintf(stdout, "\n"); + _print_execstr(exec->next); + } +} +#endif /* DEBUG */ + + +static int +_exec_ldap_exec2ent(ns_ldap_entry_t *entry, nss_XbyY_args_t *argp) +{ + + int i; + unsigned long len = 0L; + int buflen = (int)0; + char *nullstring = (char *)NULL; + char *buffer = (char *)NULL; + char *ceiling = (char *)NULL; + execstr_t *exec = (execstr_t *)NULL; + ns_ldap_attr_t *attrptr; + + buffer = argp->buf.buffer; + buflen = (size_t)argp->buf.buflen; + (void) memset(argp->buf.buffer, 0, buflen); + exec = (execstr_t *)(argp->buf.result); + ceiling = buffer + buflen; + exec->name = (char *)NULL; + exec->policy = (char *)NULL; + exec->type = (char *)NULL; + exec->res1 = (char *)NULL; + exec->res2 = (char *)NULL; + exec->id = (char *)NULL; + exec->attr = (char *)NULL; + + for (i = 0; i < entry->attr_count; i++) { + attrptr = entry->attr_pair[i]; + if (attrptr == NULL) { + return ((int)NSS_STR_PARSE_PARSE); + } + if (strcasecmp(attrptr->attrname, _EXEC_NAME) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + return ((int)NSS_STR_PARSE_PARSE); + } + exec->name = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->name, attrptr->attrvalue[0]); + continue; + } + if (strcasecmp(attrptr->attrname, _EXEC_POLICY) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + exec->policy = nullstring; + } else { + exec->policy = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->policy, + attrptr->attrvalue[0]); + } + continue; + } + if (strcasecmp(attrptr->attrname, _EXEC_TYPE) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + exec->type = nullstring; + } else { + exec->type = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->type, + attrptr->attrvalue[0]); + } + continue; + } + if (strcasecmp(attrptr->attrname, _EXEC_RES1) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + exec->res1 = nullstring; + } else { + exec->res1 = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->res1, + attrptr->attrvalue[0]); + } + continue; + } + if (strcasecmp(attrptr->attrname, _EXEC_RES2) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + exec->res2 = nullstring; + } else { + exec->res2 = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->res2, + attrptr->attrvalue[0]); + } + continue; + } + if (strcasecmp(attrptr->attrname, _EXEC_ID) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + exec->id = nullstring; + } else { + exec->id = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->id, attrptr->attrvalue[0]); + } + continue; + } + if (strcasecmp(attrptr->attrname, _EXEC_ATTRS) == 0) { + if ((attrptr->attrvalue[0] == NULL) || + (len = strlen(attrptr->attrvalue[0])) < 1) { + exec->attr = nullstring; + } else { + exec->attr = buffer; + buffer += len + 1; + if (buffer >= ceiling) { + return ((int)NSS_STR_PARSE_ERANGE); + } + (void) strcpy(exec->attr, + attrptr->attrvalue[0]); + } + continue; + } + } + + exec->next = (execstr_t *)NULL; + +#ifdef DEBUG + (void) fprintf(stdout, "\n[getexecattr.c: _exec_ldap_exec2ent]\n"); + _print_execstr(exec); +#endif /* DEBUG */ + + return ((int)NSS_STR_PARSE_SUCCESS); +} + + +/* + * place the results from ldap object structure into argp->buf.result + * returns NSS_STR_PARSE_{SUCCESS, ERANGE, PARSE} + */ +static int +_nss_ldap_exec2ent(ldap_backend_ptr be, nss_XbyY_args_t *argp) +{ + int status = (int)NSS_STR_PARSE_SUCCESS; + ns_ldap_entry_t *entry; + ns_ldap_result_t *result = be->result; + + if (!argp->buf.result) { + status = (int)NSS_STR_PARSE_ERANGE; + goto result_exec2ent; + } + + for (entry = result->entry; entry != NULL; entry = entry->next) { + status = _exec_ldap_exec2ent(entry, argp); + if (status != NSS_STR_PARSE_SUCCESS) { + goto result_exec2ent; + } + } + +result_exec2ent: + (void) __ns_ldap_freeResult(&be->result); + return (status); +} + + +static nss_status_t +_exec_process_val(ldap_backend_ptr be, nss_XbyY_args_t *argp) +{ + int status; + nss_status_t nss_stat = NSS_UNAVAIL; + ns_ldap_attr_t *attrptr; + ns_ldap_entry_t *entry; + ns_ldap_result_t *result = be->result; + _priv_execattr *_priv_exec = (_priv_execattr *)(argp->key.attrp); + +#ifdef DEBUG + (void) fprintf(stdout, "\n[getexecattr.c: _exec_process_val]\n"); +#endif /* DEBUG */ + + argp->returnval = NULL; + attrptr = getattr(result, 0); + if (attrptr == NULL) { + (void) __ns_ldap_freeResult(&be->result); + return (nss_stat); + } + for (entry = result->entry; entry != NULL; entry = entry->next) { + status = _exec_ldap_exec2ent(entry, argp); + switch (status) { + case NSS_STR_PARSE_SUCCESS: + argp->returnval = argp->buf.result; + nss_stat = NSS_SUCCESS; + if (_priv_exec->search_flag == GET_ALL) { + if (_doexeclist(argp) == 0) { + nss_stat = NSS_UNAVAIL; + } + } + break; + case NSS_STR_PARSE_ERANGE: + argp->erange = 1; + nss_stat = NSS_NOTFOUND; + break; + case NSS_STR_PARSE_PARSE: + nss_stat = NSS_NOTFOUND; + break; + default: + nss_stat = NSS_UNAVAIL; + break; + } + + if ((_priv_exec->search_flag == GET_ONE) || + (nss_stat != NSS_SUCCESS)) { + break; + } + } + + return (nss_stat); +} + + +/* + * Check if we have either an exact match or a wild-card entry for that id. + */ +static nss_status_t +get_wild(ldap_backend_ptr be, nss_XbyY_args_t *argp, int getby_flag) +{ + char *dup_id = NULL; + char *wild_id; + char searchfilter[SEARCHFILTERLEN]; + char userdata[SEARCHFILTERLEN]; + char name[SEARCHFILTERLEN]; + char id[SEARCHFILTERLEN]; + int ret; + nss_status_t nss_stat = NSS_NOTFOUND; + _priv_execattr *_priv_exec = (_priv_execattr *)(argp->key.attrp); + const char *policy = _priv_exec->policy; + const char *type = _priv_exec->type; + + if (strpbrk(policy, "*()\\") != NULL || + type != NULL && strpbrk(type, "*()\\") != NULL) + return ((nss_status_t)NSS_NOTFOUND); + + if (_priv_exec->id != NULL) + dup_id = strdup(_priv_exec->id); + + switch (getby_flag) { + case NSS_DBOP_EXECATTR_BYNAMEID: + if (_ldap_filter_name(name, _priv_exec->name, + sizeof (name)) != 0) + goto go_out; + break; + } + + wild_id = dup_id; + do { + if (wild_id != NULL) { + if (_ldap_filter_name(id, wild_id, sizeof (id)) != 0) + goto go_out; + } else + (void) strlcpy(id, "*", sizeof (id)); + + switch (getby_flag) { + case NSS_DBOP_EXECATTR_BYID: + ret = snprintf(searchfilter, sizeof (searchfilter), + _EXEC_GETEXECID, id, policy, ISWILD(type)); + if (ret >= sizeof (searchfilter) || ret < 0) + goto go_out; + ret = snprintf(userdata, sizeof (userdata), + _EXEC_GETEXECID_SSD, id, policy, ISWILD(type)); + if (ret >= sizeof (userdata) || ret < 0) + goto go_out; + break; + + case NSS_DBOP_EXECATTR_BYNAMEID: + ret = snprintf(searchfilter, sizeof (searchfilter), + _EXEC_GETEXECNAMEID, name, id, + policy, ISWILD(type)); + if (ret >= sizeof (searchfilter) || ret < 0) + goto go_out; + ret = snprintf(userdata, sizeof (userdata), + _EXEC_GETEXECNAMEID_SSD, name, id, + policy, ISWILD(type)); + if (ret >= sizeof (userdata) || ret < 0) + goto go_out; + break; + + default: + goto go_out; + } + nss_stat = _nss_ldap_nocb_lookup(be, argp, _EXECATTR, + searchfilter, NULL, _merge_SSD_filter, userdata); + if (nss_stat == NSS_SUCCESS) + break; + } while ((wild_id = _exec_wild_id(wild_id, type)) != NULL); + +go_out: + free(dup_id); + + return (nss_stat); +} + +static nss_status_t +getbynam(ldap_backend_ptr be, void *a) +{ + char searchfilter[SEARCHFILTERLEN]; + char userdata[SEARCHFILTERLEN]; + char name[SEARCHFILTERLEN]; + int ret; + nss_status_t nss_stat; + nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; + _priv_execattr *_priv_exec = (_priv_execattr *)(argp->key.attrp); + const char *policy = _priv_exec->policy; + const char *type = _priv_exec->type; + +#ifdef DEBUG + (void) fprintf(stdout, "\n[getexecattr.c: getbyname]\n"); +#endif /* DEBUG */ + + if (strpbrk(policy, "*()\\") != NULL || + type != NULL && strpbrk(type, "*()\\") != NULL || + _ldap_filter_name(name, _priv_exec->name, sizeof (name)) != 0) + return ((nss_status_t)NSS_NOTFOUND); + ret = snprintf(searchfilter, sizeof (searchfilter), + _EXEC_GETEXECNAME, name, policy, ISWILD(type)); + if (ret >= sizeof (searchfilter) || ret < 0) + return ((nss_status_t)NSS_NOTFOUND); + ret = snprintf(userdata, sizeof (userdata), + _EXEC_GETEXECNAME_SSD, name, policy, ISWILD(type)); + if (ret >= sizeof (userdata) || ret < 0) + return ((nss_status_t)NSS_NOTFOUND); + + nss_stat = _nss_ldap_nocb_lookup(be, argp, _EXECATTR, + searchfilter, NULL, _merge_SSD_filter, userdata); + + if (nss_stat == NSS_SUCCESS) + nss_stat = _exec_process_val(be, argp); + + _exec_cleanup(nss_stat, argp); + + return (nss_stat); +} + + +static nss_status_t +getbyid(ldap_backend_ptr be, void *a) +{ + nss_status_t nss_stat; + nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; + +#ifdef DEBUG + (void) fprintf(stdout, "\n[getexecattr.c: getbyid]\n"); +#endif /* DEBUG */ + + nss_stat = get_wild(be, argp, NSS_DBOP_EXECATTR_BYID); + + if (nss_stat == NSS_SUCCESS) + nss_stat = _exec_process_val(be, argp); + + _exec_cleanup(nss_stat, argp); + + return (nss_stat); +} + + +static nss_status_t +getbynameid(ldap_backend_ptr be, void *a) +{ + nss_status_t nss_stat; + nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a; + +#ifdef DEBUG + (void) fprintf(stdout, "\n[getexecattr.c: getbynameid]\n"); +#endif /* DEBUG */ + + nss_stat = get_wild(be, argp, NSS_DBOP_EXECATTR_BYNAMEID); + + if (nss_stat == NSS_SUCCESS) + nss_stat = _exec_process_val(be, argp); + + _exec_cleanup(nss_stat, argp); + + return (nss_stat); +} + + +static ldap_backend_op_t execattr_ops[] = { + _nss_ldap_destr, + _nss_ldap_endent, + _nss_ldap_setent, + _nss_ldap_getent, + getbynam, + getbyid, + getbynameid +}; + + +/*ARGSUSED0*/ +nss_backend_t * +_nss_ldap_exec_attr_constr(const char *dummy1, + const char *dummy2, + const char *dummy3, + const char *dummy4, + const char *dummy5, + const char *dummy6, + const char *dummy7) +{ +#ifdef DEBUG + (void) fprintf(stdout, + "\n[getexecattr.c: _nss_ldap_exec_attr_constr]\n"); +#endif + return ((nss_backend_t *)_nss_ldap_constr(execattr_ops, + sizeof (execattr_ops)/sizeof (execattr_ops[0]), _EXECATTR, + exec_attrs, _nss_ldap_exec2ent)); +} |