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Diffstat (limited to 'contrib/slapd-modules/nssov/netgroup.c')
| -rw-r--r-- | contrib/slapd-modules/nssov/netgroup.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/contrib/slapd-modules/nssov/netgroup.c b/contrib/slapd-modules/nssov/netgroup.c new file mode 100644 index 0000000..7211a9a --- /dev/null +++ b/contrib/slapd-modules/nssov/netgroup.c @@ -0,0 +1,199 @@ +/* netgroup.c - netgroup lookup routines */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2008-2022 The OpenLDAP Foundation. + * Portions Copyright 2008 by Howard Chu, Symas Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted only as authorized by the OpenLDAP + * Public License. + * + * A copy of this license is available in the file LICENSE in the + * top-level directory of the distribution or, alternatively, at + * <http://www.OpenLDAP.org/license.html>. + */ +/* ACKNOWLEDGEMENTS: + * This code references portions of the nss-ldapd package + * written by Arthur de Jong. The nss-ldapd code was forked + * from the nss-ldap library written by Luke Howard. + */ + +#include "nssov.h" +#include <ac/ctype.h> + +/* ( nisSchema.2.8 NAME 'nisNetgroup' SUP top STRUCTURAL + * DESC 'Abstraction of a netgroup. May refer to other netgroups' + * MUST cn + * MAY ( nisNetgroupTriple $ memberNisNetgroup $ description ) ) + */ + +/* the basic search filter for searches */ +static struct berval netgroup_filter = BER_BVC("(objectClass=nisNetgroup)"); + +/* the attributes to request with searches */ +static struct berval netgroup_keys[] = { + BER_BVC("cn"), + BER_BVC("nisNetgroupTriple"), + BER_BVC("memberNisNetgroup"), + BER_BVNULL +}; + +NSSOV_INIT(netgroup) + +NSSOV_CBPRIV(netgroup, + char buf[256]; + struct berval name;); + +static int write_string_stripspace_len(TFILE *fp,const char *str,int len) +{ + int32_t tmpint32; + int i,j; + DEBUG_PRINT("WRITE_STRING: var="__STRING(str)" string=\"%s\"",str); + if (str==NULL) + { + WRITE_INT32(fp,0); + } + else + { + /* skip leading spaces */ + for (i=0;(str[i]!='\0')&&(isspace(str[i]));i++) + /* nothing else to do */ ; + /* skip trailing spaces */ + for (j=len;(j>i)&&(isspace(str[j-1]));j--) + /* nothing else to do */ ; + /* write length of string */ + WRITE_INT32(fp,j-i); + /* write string itself */ + if (j>i) + { + WRITE(fp,str+i,j-i); + } + } + /* we're done */ + return 0; +} + +#define WRITE_STRING_STRIPSPACE_LEN(fp,str,len) \ + if (write_string_stripspace_len(fp,str,len)) \ + return -1; + +#define WRITE_STRING_STRIPSPACE(fp,str) \ + WRITE_STRING_STRIPSPACE_LEN(fp,str,strlen(str)) + +static int write_netgroup_triple(TFILE *fp,const char *triple) +{ + int32_t tmpint32; + int i; + int hostb,hoste,userb,usere,domainb,domaine; + /* skip leading spaces */ + for (i=0;(triple[i]!='\0')&&(isspace(triple[i]));i++) + /* nothing else to do */ ; + /* we should have a bracket now */ + if (triple[i]!='(') + { + Debug(LDAP_DEBUG_ANY,"write_netgroup_triple(): entry does not begin with '(' (entry skipped)\n" ); + return 0; + } + i++; + hostb=i; + /* find comma (end of host string) */ + for (;(triple[i]!='\0')&&(triple[i]!=',');i++) + /* nothing else to do */ ; + if (triple[i]!=',') + { + Debug(LDAP_DEBUG_ANY,"write_netgroup_triple(): missing ',' (entry skipped)\n" ); + return 0; + } + hoste=i; + i++; + userb=i; + /* find comma (end of user string) */ + for (;(triple[i]!='\0')&&(triple[i]!=',');i++) + /* nothing else to do */ ; + if (triple[i]!=',') + { + Debug(LDAP_DEBUG_ANY,"write_netgroup_triple(): missing ',' (entry skipped)\n" ); + return 0; + } + usere=i; + i++; + domainb=i; + /* find closing bracket (end of domain string) */ + for (;(triple[i]!='\0')&&(triple[i]!=')');i++) + /* nothing else to do */ ; + if (triple[i]!=')') + { + Debug(LDAP_DEBUG_ANY,"write_netgroup_triple(): missing ')' (entry skipped)\n" ); + return 0; + } + domaine=i; + i++; + /* skip trailing spaces */ + for (;(triple[i]!='\0')&&(isspace(triple[i]));i++) + /* nothing else to do */ ; + /* if anything is left in the string we have a problem */ + if (triple[i]!='\0') + { + Debug(LDAP_DEBUG_ANY,"write_netgroup_triple(): string contains trailing data (entry skipped)\n" ); + return 0; + } + /* write strings */ + WRITE_INT32(fp,NSLCD_RESULT_BEGIN); + WRITE_INT32(fp,NSLCD_NETGROUP_TYPE_TRIPLE); + WRITE_STRING_STRIPSPACE_LEN(fp,triple+hostb,hoste-hostb) + WRITE_STRING_STRIPSPACE_LEN(fp,triple+userb,usere-userb) + WRITE_STRING_STRIPSPACE_LEN(fp,triple+domainb,domaine-domainb) + /* we're done */ + return 0; +} + +static int write_netgroup(nssov_netgroup_cbp *cbp,Entry *entry) +{ + int32_t tmpint32; + int i; + Attribute *a; + + /* get the netgroup triples and member */ + a = attr_find(entry->e_attrs,cbp->mi->mi_attrs[1].an_desc); + if ( a ) { + /* write the netgroup triples */ + for (i=0;i<a->a_numvals;i++) + { + if (write_netgroup_triple(cbp->fp, a->a_vals[i].bv_val)) + return -1; + } + } + a = attr_find(entry->e_attrs,cbp->mi->mi_attrs[2].an_desc); + if ( a ) { + /* write netgroup members */ + for (i=0;i<a->a_numvals;i++) + { + /* write the result code */ + WRITE_INT32(cbp->fp,NSLCD_RESULT_BEGIN); + /* write triple indicator */ + WRITE_INT32(cbp->fp,NSLCD_NETGROUP_TYPE_NETGROUP); + /* write netgroup name */ + if (write_string_stripspace_len(cbp->fp,a->a_vals[i].bv_val,a->a_vals[i].bv_len)) + return -1; + } + } + /* we're done */ + return 0; +} + +NSSOV_CB(netgroup) + +NSSOV_HANDLE( + netgroup,byname, + char fbuf[1024]; + struct berval filter = {sizeof(fbuf)}; + filter.bv_val = fbuf; + READ_STRING(fp,cbp.buf);, + cbp.name.bv_len = tmpint32; + cbp.name.bv_val = cbp.buf; + Debug(LDAP_DEBUG_TRACE,"nssov_netgroup_byname(%s)\n",cbp.name.bv_val);, + NSLCD_ACTION_NETGROUP_BYNAME, + nssov_filter_byname(cbp.mi,0,&cbp.name,&filter) +) |